./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor4213794312

<...>
Warning: Permanently added '10.128.0.15' (ECDSA) to the list of known hosts.
execve("./syz-executor4213794312", ["./syz-executor4213794312"], 0x7ffca27bdd10 /* 10 vars */) = 0
brk(NULL)                               = 0x55555753d000
brk(0x55555753dc40)                     = 0x55555753dc40
arch_prctl(ARCH_SET_FS, 0x55555753d300) = 0
uname({sysname="Linux", nodename="syzkaller", ...}) = 0
set_tid_address(0x55555753d5d0)         = 5089
set_robust_list(0x55555753d5e0, 24)     = 0
rt_sigaction(SIGRTMIN, {sa_handler=0x7fc2da7704e0, sa_mask=[], sa_flags=SA_RESTORER|SA_SIGINFO, sa_restorer=0x7fc2da770bb0}, NULL, 8) = 0
rt_sigaction(SIGRT_1, {sa_handler=0x7fc2da770580, sa_mask=[], sa_flags=SA_RESTORER|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fc2da770bb0}, 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-executor4213794312", 4096) = 28
brk(0x55555755ec40)                     = 0x55555755ec40
brk(0x55555755f000)                     = 0x55555755f000
mprotect(0x7fc2da833000, 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
getpid()                                = 5089
mkdir("./syzkaller.QgihO0", 0700)       = 0
chmod("./syzkaller.QgihO0", 0777)       = 0
chdir("./syzkaller.QgihO0")             = 0
mkdir("./0", 0777)                      = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR)  = 3
ioctl(3, LOOP_CLR_FD)                   = -1 ENXIO (No such device or address)
close(3)                                = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555753d5d0) = 5090
./strace-static-x86_64: Process 5090 attached
[pid  5090] set_robust_list(0x55555753d5e0, 24) = 0
[pid  5090] chdir("./0")                = 0
[pid  5090] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5090] setpgid(0, 0)               = 0
[pid  5090] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5090] write(3, "1000", 4)         = 4
[pid  5090] close(3)                    = 0
[pid  5090] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5090] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5090] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc2da73f000
[pid  5090] mprotect(0x7fc2da740000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5090] clone(child_stack=0x7fc2da75f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5092], tls=0x7fc2da75f700, child_tidptr=0x7fc2da75f9d0) = 5092
[pid  5090] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5090] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5092 attached
 <unfinished ...>
[pid  5092] set_robust_list(0x7fc2da75f9e0, 24) = 0
[pid  5092] memfd_create("syzkaller", 0) = 3
[pid  5092] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fc2d233f000
syzkaller login: [   75.262248][ T5092] memfd_create() without MFD_EXEC nor MFD_NOEXEC_SEAL, pid=5092 'syz-executor421'
[pid  5092] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304) = 4194304
[pid  5092] munmap(0x7fc2d233f000, 4194304) = 0
[pid  5092] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5092] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  5092] close(3)                    = 0
[pid  5092] mkdir("./file0", 0777)      = 0
[   75.332291][ T5092] loop0: detected capacity change from 0 to 8192
[   75.346030][ T5092] REISERFS warning:  read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025
[   75.359361][ T5092] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal
[   75.368986][ T5092] REISERFS (device loop0): using ordered data mode
[   75.375662][ T5092] reiserfs: using flush barriers
[   75.382279][ T5092] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30
[   75.399433][ T5092] REISERFS (device loop0): checking transaction log (loop0)
[pid  5092] mount("/dev/loop0", "./file0", "reiserfs", MS_NOEXEC|MS_I_VERSION, "") = 0
[pid  5092] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid  5092] chdir("./file0")            = 0
[pid  5092] ioctl(4, LOOP_CLR_FD)       = 0
[pid  5092] close(4)                    = 0
[pid  5092] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5090] <... futex resumed>)        = 0
[pid  5092] futex(0x7fc2da8397a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5090] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5092] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5090] <... futex resumed>)        = 0
[pid  5092] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_LARGEFILE|O_NOATIME, 000 <unfinished ...>
[pid  5090] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5092] <... open resumed>)         = 4
[pid  5092] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5090] <... futex resumed>)        = 0
[pid  5092] futex(0x7fc2da8397a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5090] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5092] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5090] <... futex resumed>)        = 0
[pid  5090] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5092] ftruncate(4, 3608577)       = 0
[pid  5092] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5090] <... futex resumed>)        = 0
[pid  5092] futex(0x7fc2da8397a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5090] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5092] <... futex resumed>)        = 0
[pid  5090] <... futex resumed>)        = 1
[pid  5092] openat(AT_FDCWD, ".log", O_WRONLY|O_CREAT|O_TRUNC, 000 <unfinished ...>
[pid  5090] futex(0x7fc2da8397bc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5090] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid  5092] <... openat resumed>)       = 5
[pid  5090] <... mmap resumed>)         = 0x7fc2d271e000
[pid  5092] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5090] mprotect(0x7fc2d271f000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid  5092] <... futex resumed>)        = 0
[pid  5090] <... mprotect resumed>)     = 0
[pid  5092] futex(0x7fc2da8397a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5090] clone(child_stack=0x7fc2d273e3f0, 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 5094 attached
, parent_tid=[5094], tls=0x7fc2d273e700, child_tidptr=0x7fc2d273e9d0) = 5094
[pid  5094] set_robust_list(0x7fc2d273e9e0, 24) = 0
[pid  5094] futex(0x7fc2da8397b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5090] futex(0x7fc2da8397b8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5090] futex(0x7fc2da8397bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5094] <... futex resumed>)        = 0
[   75.459666][ T5092] REISERFS (device loop0): Using r5 hash to sort names
[   75.468135][ T5092] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage.
[pid  5094] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000) = 0
[pid  5094] futex(0x7fc2da8397bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5090] <... futex resumed>)        = 0
[pid  5094] <... futex resumed>)        = 1
[pid  5090] exit_group(0 <unfinished ...>
[pid  5094] ???( <unfinished ...>
[pid  5090] <... exit_group resumed>)   = ?
[pid  5094] <... ??? resumed>)          = ?
[pid  5092] <... futex resumed>)        = ?
[pid  5092] +++ exited with 0 +++
[pid  5094] +++ exited with 0 +++
[pid  5090] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5090, si_uid=0, si_status=0, si_utime=0, si_stime=23 /* 0.23 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x55555753e620 /* 4 entries */, 32768) = 112
umount2("./0/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./0/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./0/binderfs")                  = 0
umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./0/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555557546660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555557546660 /* 0 entries */, 32768) = 0
close(4)                                = 0
rmdir("./0/file0")                      = 0
getdents64(3, 0x55555753e620 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./0")                            = 0
mkdir("./1", 0777)                      = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR)  = 3
ioctl(3, LOOP_CLR_FD)                   = -1 ENXIO (No such device or address)
close(3)                                = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555753d5d0) = 5095
./strace-static-x86_64: Process 5095 attached
[pid  5095] set_robust_list(0x55555753d5e0, 24) = 0
[pid  5095] chdir("./1")                = 0
[pid  5095] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5095] setpgid(0, 0)               = 0
[pid  5095] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5095] write(3, "1000", 4)         = 4
[pid  5095] close(3)                    = 0
[pid  5095] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5095] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5095] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc2da73f000
[pid  5095] mprotect(0x7fc2da740000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5095] clone(child_stack=0x7fc2da75f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5096], tls=0x7fc2da75f700, child_tidptr=0x7fc2da75f9d0) = 5096
[pid  5095] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5095] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5096 attached
 <unfinished ...>
[pid  5096] set_robust_list(0x7fc2da75f9e0, 24) = 0
[pid  5096] memfd_create("syzkaller", 0) = 3
[pid  5096] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fc2d233f000
[pid  5096] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304) = 4194304
[pid  5096] munmap(0x7fc2d233f000, 4194304) = 0
[pid  5096] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5096] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  5096] close(3)                    = 0
[pid  5096] mkdir("./file0", 0777)      = 0
[   75.710053][ T5096] loop0: detected capacity change from 0 to 8192
[   75.721589][ T5096] REISERFS warning:  read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025
[   75.734647][ T5096] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal
[   75.743910][ T5096] REISERFS (device loop0): using ordered data mode
[   75.750483][ T5096] reiserfs: using flush barriers
[   75.756582][ T5096] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30
[   75.773178][ T5096] REISERFS (device loop0): checking transaction log (loop0)
[pid  5096] mount("/dev/loop0", "./file0", "reiserfs", MS_NOEXEC|MS_I_VERSION, "") = 0
[pid  5096] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid  5096] chdir("./file0")            = 0
[pid  5096] ioctl(4, LOOP_CLR_FD)       = 0
[pid  5096] close(4)                    = 0
[pid  5096] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5095] <... futex resumed>)        = 0
[pid  5096] futex(0x7fc2da8397a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5095] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5096] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5095] <... futex resumed>)        = 0
[pid  5096] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_LARGEFILE|O_NOATIME, 000 <unfinished ...>
[pid  5095] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5096] <... open resumed>)         = 4
[pid  5096] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5095] <... futex resumed>)        = 0
[pid  5096] futex(0x7fc2da8397a8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
[pid  5095] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5096] ftruncate(4, 3608577 <unfinished ...>
[pid  5095] <... futex resumed>)        = 0
[pid  5095] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5096] <... ftruncate resumed>)    = 0
[pid  5096] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5096] futex(0x7fc2da8397a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5095] <... futex resumed>)        = 0
[pid  5095] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5096] <... futex resumed>)        = 0
[pid  5095] <... futex resumed>)        = 1
[pid  5096] openat(AT_FDCWD, ".log", O_WRONLY|O_CREAT|O_TRUNC, 000 <unfinished ...>
[pid  5095] futex(0x7fc2da8397bc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5096] <... openat resumed>)       = 5
[pid  5095] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid  5096] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5095] <... mmap resumed>)         = 0x7fc2d271e000
[pid  5096] futex(0x7fc2da8397a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5095] mprotect(0x7fc2d271f000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5095] clone(child_stack=0x7fc2d273e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5098], tls=0x7fc2d273e700, child_tidptr=0x7fc2d273e9d0) = 5098
[pid  5095] futex(0x7fc2da8397b8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5095] futex(0x7fc2da8397bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5098 attached
 <unfinished ...>
[pid  5098] set_robust_list(0x7fc2d273e9e0, 24) = 0
[pid  5098] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000) = 0
[pid  5098] futex(0x7fc2da8397bc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5095] <... futex resumed>)        = 0
[pid  5095] exit_group(0 <unfinished ...>
[pid  5096] <... futex resumed>)        = ?
[pid  5095] <... exit_group resumed>)   = ?
[pid  5096] +++ exited with 0 +++
[pid  5098] +++ exited with 0 +++
[pid  5095] +++ exited with 0 +++
[   75.830987][ T5096] REISERFS (device loop0): Using r5 hash to sort names
[   75.838192][ T5096] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage.
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5095, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=15 /* 0.15 s */} ---
umount2("./1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x55555753e620 /* 4 entries */, 32768) = 112
umount2("./1/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./1/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./1/binderfs")                  = 0
umount2("./1/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./1/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./1/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./1/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./1/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555557546660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555557546660 /* 0 entries */, 32768) = 0
close(4)                                = 0
rmdir("./1/file0")                      = 0
getdents64(3, 0x55555753e620 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./1")                            = 0
mkdir("./2", 0777)                      = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR)  = 3
ioctl(3, LOOP_CLR_FD)                   = -1 ENXIO (No such device or address)
close(3)                                = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555753d5d0) = 5099
./strace-static-x86_64: Process 5099 attached
[pid  5099] set_robust_list(0x55555753d5e0, 24) = 0
[pid  5099] chdir("./2")                = 0
[pid  5099] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5099] setpgid(0, 0)               = 0
[pid  5099] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5099] write(3, "1000", 4)         = 4
[pid  5099] close(3)                    = 0
[pid  5099] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5099] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5099] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc2da73f000
[pid  5099] mprotect(0x7fc2da740000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5099] clone(child_stack=0x7fc2da75f3f0, 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 5100 attached
, parent_tid=[5100], tls=0x7fc2da75f700, child_tidptr=0x7fc2da75f9d0) = 5100
[pid  5100] set_robust_list(0x7fc2da75f9e0, 24) = 0
[pid  5100] futex(0x7fc2da8397a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5099] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5100] <... futex resumed>)        = 0
[pid  5100] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5099] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid  5100] <... memfd_create resumed>) = 3
[pid  5100] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fc2d233f000
[pid  5100] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304) = 4194304
[pid  5100] munmap(0x7fc2d233f000, 4194304) = 0
[pid  5100] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5100] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  5100] close(3)                    = 0
[pid  5100] mkdir("./file0", 0777)      = 0
[   76.059889][ T5100] loop0: detected capacity change from 0 to 8192
[   76.071075][ T5100] REISERFS warning:  read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025
[   76.084583][ T5100] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal
[   76.094170][ T5100] REISERFS (device loop0): using ordered data mode
[   76.101104][ T5100] reiserfs: using flush barriers
[   76.107302][ T5100] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30
[   76.124218][ T5100] REISERFS (device loop0): checking transaction log (loop0)
[pid  5100] mount("/dev/loop0", "./file0", "reiserfs", MS_NOEXEC|MS_I_VERSION, "") = 0
[pid  5100] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid  5100] chdir("./file0")            = 0
[pid  5100] ioctl(4, LOOP_CLR_FD)       = 0
[pid  5100] close(4)                    = 0
[pid  5100] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5099] <... futex resumed>)        = 0
[pid  5099] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5099] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5100] <... futex resumed>)        = 1
[pid  5100] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_LARGEFILE|O_NOATIME, 000) = 4
[pid  5100] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5099] <... futex resumed>)        = 0
[pid  5099] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5099] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5100] <... futex resumed>)        = 1
[pid  5100] ftruncate(4, 3608577)       = 0
[pid  5100] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5099] <... futex resumed>)        = 0
[pid  5099] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5099] futex(0x7fc2da8397bc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5099] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc2d271e000
[pid  5099] mprotect(0x7fc2d271f000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5099] clone(child_stack=0x7fc2d273e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid  5100] <... futex resumed>)        = 1
[pid  5099] <... clone resumed>, parent_tid=[5102], tls=0x7fc2d273e700, child_tidptr=0x7fc2d273e9d0) = 5102
[pid  5100] openat(AT_FDCWD, ".log", O_WRONLY|O_CREAT|O_TRUNC, 000 <unfinished ...>
[pid  5099] futex(0x7fc2da8397b8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5100] <... openat resumed>)       = 5
[pid  5099] <... futex resumed>)        = 0
[pid  5100] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5099] futex(0x7fc2da8397bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5100] <... futex resumed>)        = 0
[pid  5100] futex(0x7fc2da8397a8, FUTEX_WAIT_PRIVATE, 0, NULL./strace-static-x86_64: Process 5102 attached
 <unfinished ...>
[pid  5102] set_robust_list(0x7fc2d273e9e0, 24) = 0
[pid  5102] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000) = 0
[pid  5102] futex(0x7fc2da8397bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5099] <... futex resumed>)        = 0
[pid  5099] exit_group(0 <unfinished ...>
[pid  5100] <... futex resumed>)        = ?
[pid  5099] <... exit_group resumed>)   = ?
[pid  5100] +++ exited with 0 +++
[pid  5102] <... futex resumed>)        = ?
[pid  5102] +++ exited with 0 +++
[pid  5099] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5099, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=15 /* 0.15 s */} ---
umount2("./2", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x55555753e620 /* 4 entries */, 32768) = 112
umount2("./2/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./2/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./2/binderfs")                  = 0
[   76.180359][ T5100] REISERFS (device loop0): Using r5 hash to sort names
[   76.187669][ T5100] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage.
umount2("./2/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./2/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./2/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./2/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./2/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555557546660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555557546660 /* 0 entries */, 32768) = 0
close(4)                                = 0
rmdir("./2/file0")                      = 0
getdents64(3, 0x55555753e620 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./2")                            = 0
mkdir("./3", 0777)                      = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR)  = 3
ioctl(3, LOOP_CLR_FD)                   = -1 ENXIO (No such device or address)
close(3)                                = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555753d5d0) = 5103
./strace-static-x86_64: Process 5103 attached
[pid  5103] set_robust_list(0x55555753d5e0, 24) = 0
[pid  5103] chdir("./3")                = 0
[pid  5103] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5103] setpgid(0, 0)               = 0
[pid  5103] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5103] write(3, "1000", 4)         = 4
[pid  5103] close(3)                    = 0
[pid  5103] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5103] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5103] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc2da73f000
[pid  5103] mprotect(0x7fc2da740000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5103] clone(child_stack=0x7fc2da75f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5104], tls=0x7fc2da75f700, child_tidptr=0x7fc2da75f9d0) = 5104
[pid  5103] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5103] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5104 attached
 <unfinished ...>
[pid  5104] set_robust_list(0x7fc2da75f9e0, 24) = 0
[pid  5104] memfd_create("syzkaller", 0) = 3
[pid  5104] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fc2d233f000
[pid  5104] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304) = 4194304
[pid  5104] munmap(0x7fc2d233f000, 4194304) = 0
[pid  5104] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5104] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  5104] close(3)                    = 0
[pid  5104] mkdir("./file0", 0777)      = 0
[   76.381736][ T5104] loop0: detected capacity change from 0 to 8192
[   76.392338][ T5104] REISERFS warning:  read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025
[   76.405413][ T5104] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal
[   76.414759][ T5104] REISERFS (device loop0): using ordered data mode
[   76.421285][ T5104] reiserfs: using flush barriers
[   76.427583][ T5104] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30
[   76.444050][ T5104] REISERFS (device loop0): checking transaction log (loop0)
[pid  5104] mount("/dev/loop0", "./file0", "reiserfs", MS_NOEXEC|MS_I_VERSION, "") = 0
[pid  5104] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid  5104] chdir("./file0")            = 0
[pid  5104] ioctl(4, LOOP_CLR_FD)       = 0
[pid  5104] close(4)                    = 0
[pid  5104] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5104] futex(0x7fc2da8397a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5103] <... futex resumed>)        = 0
[pid  5103] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5103] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5104] <... futex resumed>)        = 0
[pid  5104] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_LARGEFILE|O_NOATIME, 000) = 4
[pid  5104] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5103] <... futex resumed>)        = 0
[pid  5103] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5103] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5104] <... futex resumed>)        = 1
[pid  5104] ftruncate(4, 3608577)       = 0
[pid  5104] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5103] <... futex resumed>)        = 0
[pid  5103] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5103] futex(0x7fc2da8397bc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5103] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc2d271e000
[pid  5103] mprotect(0x7fc2d271f000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5103] clone(child_stack=0x7fc2d273e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5106], tls=0x7fc2d273e700, child_tidptr=0x7fc2d273e9d0) = 5106
[pid  5103] futex(0x7fc2da8397b8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5103] futex(0x7fc2da8397bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5104] <... futex resumed>)        = 1
[pid  5104] openat(AT_FDCWD, ".log", O_WRONLY|O_CREAT|O_TRUNC, 000) = 5
[pid  5104] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5104] futex(0x7fc2da8397a8, FUTEX_WAIT_PRIVATE, 0, NULL./strace-static-x86_64: Process 5106 attached
 <unfinished ...>
[pid  5106] set_robust_list(0x7fc2d273e9e0, 24) = 0
[pid  5106] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000) = 0
[pid  5106] futex(0x7fc2da8397bc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5103] <... futex resumed>)        = 0
[pid  5106] futex(0x7fc2da8397b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5103] exit_group(0 <unfinished ...>
[pid  5106] <... futex resumed>)        = ?
[pid  5103] <... exit_group resumed>)   = ?
[pid  5106] +++ exited with 0 +++
[pid  5104] <... futex resumed>)        = ?
[pid  5104] +++ exited with 0 +++
[pid  5103] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5103, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./3", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x55555753e620 /* 4 entries */, 32768) = 112
umount2("./3/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./3/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./3/binderfs")                  = 0
[   76.505641][ T5104] REISERFS (device loop0): Using r5 hash to sort names
[   76.512833][ T5104] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage.
umount2("./3/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./3/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./3/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./3/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./3/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555557546660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555557546660 /* 0 entries */, 32768) = 0
close(4)                                = 0
rmdir("./3/file0")                      = 0
getdents64(3, 0x55555753e620 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./3")                            = 0
mkdir("./4", 0777)                      = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR)  = 3
ioctl(3, LOOP_CLR_FD)                   = -1 ENXIO (No such device or address)
close(3)                                = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555753d5d0) = 5107
./strace-static-x86_64: Process 5107 attached
[pid  5107] set_robust_list(0x55555753d5e0, 24) = 0
[pid  5107] chdir("./4")                = 0
[pid  5107] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5107] setpgid(0, 0)               = 0
[pid  5107] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5107] write(3, "1000", 4)         = 4
[pid  5107] close(3)                    = 0
[pid  5107] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5107] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5107] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc2da73f000
[pid  5107] mprotect(0x7fc2da740000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5107] clone(child_stack=0x7fc2da75f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5108], tls=0x7fc2da75f700, child_tidptr=0x7fc2da75f9d0) = 5108
[pid  5107] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5107] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5108 attached
 <unfinished ...>
[pid  5108] set_robust_list(0x7fc2da75f9e0, 24) = 0
[pid  5108] memfd_create("syzkaller", 0) = 3
[pid  5108] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fc2d233f000
[pid  5108] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304) = 4194304
[pid  5108] munmap(0x7fc2d233f000, 4194304) = 0
[pid  5108] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5108] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  5108] close(3)                    = 0
[pid  5108] mkdir("./file0", 0777)      = 0
[   76.720768][ T5108] loop0: detected capacity change from 0 to 8192
[   76.731477][ T5108] REISERFS warning:  read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025
[   76.745259][ T5108] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal
[   76.754615][ T5108] REISERFS (device loop0): using ordered data mode
[   76.761394][ T5108] reiserfs: using flush barriers
[   76.767672][ T5108] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30
[   76.784261][ T5108] REISERFS (device loop0): checking transaction log (loop0)
[pid  5108] mount("/dev/loop0", "./file0", "reiserfs", MS_NOEXEC|MS_I_VERSION, "") = 0
[pid  5108] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid  5108] chdir("./file0")            = 0
[pid  5108] ioctl(4, LOOP_CLR_FD)       = 0
[pid  5108] close(4)                    = 0
[pid  5108] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5108] futex(0x7fc2da8397a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5107] <... futex resumed>)        = 0
[pid  5107] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5108] <... futex resumed>)        = 0
[pid  5107] <... futex resumed>)        = 1
[pid  5108] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_LARGEFILE|O_NOATIME, 000 <unfinished ...>
[pid  5107] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5108] <... open resumed>)         = 4
[pid  5108] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5107] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5107] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5108] ftruncate(4, 3608577 <unfinished ...>
[pid  5107] <... futex resumed>)        = 0
[pid  5107] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5108] <... ftruncate resumed>)    = 0
[pid  5108] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5107] <... futex resumed>)        = 0
[pid  5108] openat(AT_FDCWD, ".log", O_WRONLY|O_CREAT|O_TRUNC, 000 <unfinished ...>
[pid  5107] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5107] futex(0x7fc2da8397bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5108] <... openat resumed>)       = 5
[pid  5107] <... futex resumed>)        = 0
[pid  5108] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5107] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid  5108] <... futex resumed>)        = 0
[pid  5108] futex(0x7fc2da8397a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5107] <... mmap resumed>)         = 0x7fc2d271e000
[pid  5107] mprotect(0x7fc2d271f000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5107] clone(child_stack=0x7fc2d273e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5110], tls=0x7fc2d273e700, child_tidptr=0x7fc2d273e9d0) = 5110
[pid  5107] futex(0x7fc2da8397b8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5107] futex(0x7fc2da8397bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5110 attached
 <unfinished ...>
[pid  5110] set_robust_list(0x7fc2d273e9e0, 24) = 0
[pid  5110] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000) = 0
[pid  5110] futex(0x7fc2da8397bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5107] <... futex resumed>)        = 0
[pid  5107] exit_group(0)               = ?
[pid  5110] <... futex resumed>)        = ?
[pid  5108] <... futex resumed>)        = ?
[pid  5110] +++ exited with 0 +++
[pid  5108] +++ exited with 0 +++
[pid  5107] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5107, si_uid=0, si_status=0, si_utime=0, si_stime=22 /* 0.22 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./4", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x55555753e620 /* 4 entries */, 32768) = 112
umount2("./4/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./4/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
[   76.840969][ T5108] REISERFS (device loop0): Using r5 hash to sort names
[   76.848107][ T5108] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage.
unlink("./4/binderfs")                  = 0
umount2("./4/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./4/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./4/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./4/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./4/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555557546660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555557546660 /* 0 entries */, 32768) = 0
close(4)                                = 0
rmdir("./4/file0")                      = 0
getdents64(3, 0x55555753e620 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./4")                            = 0
mkdir("./5", 0777)                      = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR)  = 3
ioctl(3, LOOP_CLR_FD)                   = -1 ENXIO (No such device or address)
close(3)                                = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5111 attached
 <unfinished ...>
[pid  5111] set_robust_list(0x55555753d5e0, 24) = 0
[pid  5111] chdir("./5")                = 0
[pid  5111] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5111] setpgid(0, 0)               = 0
[pid  5111] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5111] write(3, "1000", 4)         = 4
[pid  5111] close(3)                    = 0
[pid  5111] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5111] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5111] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc2da73f000
[pid  5111] mprotect(0x7fc2da740000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5111] clone(child_stack=0x7fc2da75f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5112], tls=0x7fc2da75f700, child_tidptr=0x7fc2da75f9d0) = 5112
[pid  5111] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5111] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5112 attached
 <unfinished ...>
[pid  5089] <... clone resumed>, child_tidptr=0x55555753d5d0) = 5111
[pid  5112] set_robust_list(0x7fc2da75f9e0, 24) = 0
[pid  5112] memfd_create("syzkaller", 0) = 3
[pid  5112] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fc2d233f000
[pid  5112] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304) = 4194304
[pid  5112] munmap(0x7fc2d233f000, 4194304) = 0
[pid  5112] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5112] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  5112] close(3)                    = 0
[pid  5112] mkdir("./file0", 0777)      = 0
[   77.048077][ T5112] loop0: detected capacity change from 0 to 8192
[   77.060222][ T5112] REISERFS warning:  read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025
[   77.073391][ T5112] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal
[   77.082979][ T5112] REISERFS (device loop0): using ordered data mode
[   77.089645][ T5112] reiserfs: using flush barriers
[   77.095770][ T5112] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30
[   77.112397][ T5112] REISERFS (device loop0): checking transaction log (loop0)
[pid  5112] mount("/dev/loop0", "./file0", "reiserfs", MS_NOEXEC|MS_I_VERSION, "") = 0
[pid  5112] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid  5112] chdir("./file0")            = 0
[pid  5112] ioctl(4, LOOP_CLR_FD)       = 0
[pid  5112] close(4)                    = 0
[pid  5112] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5111] <... futex resumed>)        = 0
[pid  5111] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5111] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5112] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_LARGEFILE|O_NOATIME, 000) = 4
[pid  5112] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5111] <... futex resumed>)        = 0
[pid  5111] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5111] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5112] ftruncate(4, 3608577)       = 0
[pid  5112] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5111] <... futex resumed>)        = 0
[pid  5111] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5111] futex(0x7fc2da8397bc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5111] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc2d271e000
[pid  5111] mprotect(0x7fc2d271f000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5111] clone(child_stack=0x7fc2d273e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5114], tls=0x7fc2d273e700, child_tidptr=0x7fc2d273e9d0) = 5114
[pid  5111] futex(0x7fc2da8397b8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5111] futex(0x7fc2da8397bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5112] <... futex resumed>)        = 1
[pid  5112] openat(AT_FDCWD, ".log", O_WRONLY|O_CREAT|O_TRUNC, 000./strace-static-x86_64: Process 5114 attached
 <unfinished ...>
[pid  5114] set_robust_list(0x7fc2d273e9e0, 24 <unfinished ...>
[pid  5112] <... openat resumed>)       = 5
[pid  5112] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5112] futex(0x7fc2da8397a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5114] <... set_robust_list resumed>) = 0
[pid  5114] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000) = 0
[pid  5114] futex(0x7fc2da8397bc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5111] <... futex resumed>)        = 0
[pid  5111] exit_group(0)               = ?
[pid  5112] <... futex resumed>)        = ?
[pid  5112] +++ exited with 0 +++
[pid  5114] +++ exited with 0 +++
[pid  5111] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5111, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
[   77.167820][ T5112] REISERFS (device loop0): Using r5 hash to sort names
[   77.176048][ T5112] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage.
umount2("./5", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x55555753e620 /* 4 entries */, 32768) = 112
umount2("./5/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./5/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./5/binderfs")                  = 0
umount2("./5/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./5/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./5/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./5/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./5/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555557546660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555557546660 /* 0 entries */, 32768) = 0
close(4)                                = 0
rmdir("./5/file0")                      = 0
getdents64(3, 0x55555753e620 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./5")                            = 0
mkdir("./6", 0777)                      = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR)  = 3
ioctl(3, LOOP_CLR_FD)                   = -1 ENXIO (No such device or address)
close(3)                                = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555753d5d0) = 5115
./strace-static-x86_64: Process 5115 attached
[pid  5115] set_robust_list(0x55555753d5e0, 24) = 0
[pid  5115] chdir("./6")                = 0
[pid  5115] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5115] setpgid(0, 0)               = 0
[pid  5115] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5115] write(3, "1000", 4)         = 4
[pid  5115] close(3)                    = 0
[pid  5115] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5115] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5115] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc2da73f000
[pid  5115] mprotect(0x7fc2da740000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5115] clone(child_stack=0x7fc2da75f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5116], tls=0x7fc2da75f700, child_tidptr=0x7fc2da75f9d0) = 5116
[pid  5115] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5115] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5116 attached
 <unfinished ...>
[pid  5116] set_robust_list(0x7fc2da75f9e0, 24) = 0
[pid  5116] memfd_create("syzkaller", 0) = 3
[pid  5116] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fc2d233f000
[pid  5116] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304) = 4194304
[pid  5116] munmap(0x7fc2d233f000, 4194304) = 0
[pid  5116] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5116] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  5116] close(3)                    = 0
[pid  5116] mkdir("./file0", 0777)      = 0
[   77.369737][ T5116] loop0: detected capacity change from 0 to 8192
[   77.381084][ T5116] REISERFS warning:  read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025
[   77.394405][ T5116] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal
[   77.403925][ T5116] REISERFS (device loop0): using ordered data mode
[   77.410814][ T5116] reiserfs: using flush barriers
[   77.417124][ T5116] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30
[   77.433784][ T5116] REISERFS (device loop0): checking transaction log (loop0)
[pid  5116] mount("/dev/loop0", "./file0", "reiserfs", MS_NOEXEC|MS_I_VERSION, "") = 0
[pid  5116] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid  5116] chdir("./file0")            = 0
[pid  5116] ioctl(4, LOOP_CLR_FD)       = 0
[pid  5116] close(4)                    = 0
[pid  5116] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5115] <... futex resumed>)        = 0
[pid  5116] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_LARGEFILE|O_NOATIME, 000 <unfinished ...>
[pid  5115] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5116] <... open resumed>)         = 4
[pid  5115] <... futex resumed>)        = 0
[pid  5115] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5116] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5115] <... futex resumed>)        = 0
[pid  5116] ftruncate(4, 3608577 <unfinished ...>
[pid  5115] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5116] <... ftruncate resumed>)    = 0
[pid  5115] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5116] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5115] <... futex resumed>)        = 0
[pid  5116] openat(AT_FDCWD, ".log", O_WRONLY|O_CREAT|O_TRUNC, 000 <unfinished ...>
[pid  5115] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5116] <... openat resumed>)       = 5
[pid  5115] <... futex resumed>)        = 0
[pid  5116] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5115] futex(0x7fc2da8397bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5116] <... futex resumed>)        = 0
[pid  5115] <... futex resumed>)        = 0
[pid  5116] futex(0x7fc2da8397a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5115] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc2d271e000
[pid  5115] mprotect(0x7fc2d271f000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5115] clone(child_stack=0x7fc2d273e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5118], tls=0x7fc2d273e700, child_tidptr=0x7fc2d273e9d0) = 5118
[pid  5115] futex(0x7fc2da8397b8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5115] futex(0x7fc2da8397bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5118 attached
 <unfinished ...>
[pid  5118] set_robust_list(0x7fc2d273e9e0, 24) = 0
[pid  5118] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000) = 0
[pid  5118] futex(0x7fc2da8397bc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5115] <... futex resumed>)        = 0
[pid  5115] exit_group(0 <unfinished ...>
[pid  5116] <... futex resumed>)        = ?
[pid  5115] <... exit_group resumed>)   = ?
[pid  5116] +++ exited with 0 +++
[pid  5118] +++ exited with 0 +++
[pid  5115] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5115, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./6", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x55555753e620 /* 4 entries */, 32768) = 112
[   77.491084][ T5116] REISERFS (device loop0): Using r5 hash to sort names
[   77.498249][ T5116] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage.
umount2("./6/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./6/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./6/binderfs")                  = 0
umount2("./6/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./6/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./6/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./6/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./6/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555557546660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555557546660 /* 0 entries */, 32768) = 0
close(4)                                = 0
rmdir("./6/file0")                      = 0
getdents64(3, 0x55555753e620 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./6")                            = 0
mkdir("./7", 0777)                      = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR)  = 3
ioctl(3, LOOP_CLR_FD)                   = -1 ENXIO (No such device or address)
close(3)                                = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555753d5d0) = 5119
./strace-static-x86_64: Process 5119 attached
[pid  5119] set_robust_list(0x55555753d5e0, 24) = 0
[pid  5119] chdir("./7")                = 0
[pid  5119] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5119] setpgid(0, 0)               = 0
[pid  5119] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5119] write(3, "1000", 4)         = 4
[pid  5119] close(3)                    = 0
[pid  5119] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5119] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5119] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc2da73f000
[pid  5119] mprotect(0x7fc2da740000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5119] clone(child_stack=0x7fc2da75f3f0, 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 5120 attached
, parent_tid=[5120], tls=0x7fc2da75f700, child_tidptr=0x7fc2da75f9d0) = 5120
[pid  5119] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5119] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid  5120] set_robust_list(0x7fc2da75f9e0, 24) = 0
[pid  5120] memfd_create("syzkaller", 0) = 3
[pid  5120] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fc2d233f000
[pid  5120] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304) = 4194304
[pid  5120] munmap(0x7fc2d233f000, 4194304) = 0
[pid  5120] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5120] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  5120] close(3)                    = 0
[pid  5120] mkdir("./file0", 0777)      = 0
[   77.720173][ T5120] loop0: detected capacity change from 0 to 8192
[   77.741142][ T5120] REISERFS warning:  read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025
[   77.754313][ T5120] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal
[   77.763642][ T5120] REISERFS (device loop0): using ordered data mode
[   77.770239][ T5120] reiserfs: using flush barriers
[   77.776398][ T5120] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30
[   77.792868][ T5120] REISERFS (device loop0): checking transaction log (loop0)
[pid  5120] mount("/dev/loop0", "./file0", "reiserfs", MS_NOEXEC|MS_I_VERSION, "") = 0
[pid  5120] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid  5120] chdir("./file0")            = 0
[pid  5120] ioctl(4, LOOP_CLR_FD)       = 0
[pid  5120] close(4)                    = 0
[pid  5120] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5119] <... futex resumed>)        = 0
[pid  5120] futex(0x7fc2da8397a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5119] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5120] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5119] <... futex resumed>)        = 0
[pid  5120] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_LARGEFILE|O_NOATIME, 000 <unfinished ...>
[pid  5119] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5120] <... open resumed>)         = 4
[pid  5120] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5119] <... futex resumed>)        = 0
[pid  5120] ftruncate(4, 3608577 <unfinished ...>
[pid  5119] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5120] <... ftruncate resumed>)    = 0
[pid  5119] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5120] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5119] <... futex resumed>)        = 0
[pid  5120] openat(AT_FDCWD, ".log", O_WRONLY|O_CREAT|O_TRUNC, 000 <unfinished ...>
[pid  5119] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5120] <... openat resumed>)       = 5
[pid  5119] <... futex resumed>)        = 0
[pid  5120] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5119] futex(0x7fc2da8397bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5120] <... futex resumed>)        = 0
[pid  5119] <... futex resumed>)        = 0
[pid  5120] futex(0x7fc2da8397a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5119] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc2d271e000
[pid  5119] mprotect(0x7fc2d271f000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5119] clone(child_stack=0x7fc2d273e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5122], tls=0x7fc2d273e700, child_tidptr=0x7fc2d273e9d0) = 5122
[pid  5119] futex(0x7fc2da8397b8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5119] futex(0x7fc2da8397bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5122 attached
 <unfinished ...>
[pid  5122] set_robust_list(0x7fc2d273e9e0, 24) = 0
[pid  5122] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000) = 0
[pid  5122] futex(0x7fc2da8397bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5119] <... futex resumed>)        = 0
[pid  5119] exit_group(0 <unfinished ...>
[pid  5120] <... futex resumed>)        = ?
[pid  5119] <... exit_group resumed>)   = ?
[pid  5120] +++ exited with 0 +++
[pid  5122] <... futex resumed>)        = ?
[pid  5122] +++ exited with 0 +++
[pid  5119] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5119, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} ---
umount2("./7", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x55555753e620 /* 4 entries */, 32768) = 112
umount2("./7/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./7/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./7/binderfs")                  = 0
[   77.851096][ T5120] REISERFS (device loop0): Using r5 hash to sort names
[   77.858428][ T5120] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage.
umount2("./7/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./7/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./7/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./7/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./7/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555557546660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555557546660 /* 0 entries */, 32768) = 0
close(4)                                = 0
rmdir("./7/file0")                      = 0
getdents64(3, 0x55555753e620 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./7")                            = 0
mkdir("./8", 0777)                      = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR)  = 3
ioctl(3, LOOP_CLR_FD)                   = -1 ENXIO (No such device or address)
close(3)                                = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555753d5d0) = 5123
./strace-static-x86_64: Process 5123 attached
[pid  5123] set_robust_list(0x55555753d5e0, 24) = 0
[pid  5123] chdir("./8")                = 0
[pid  5123] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5123] setpgid(0, 0)               = 0
[pid  5123] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5123] write(3, "1000", 4)         = 4
[pid  5123] close(3)                    = 0
[pid  5123] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5123] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5123] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc2da73f000
[pid  5123] mprotect(0x7fc2da740000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5123] clone(child_stack=0x7fc2da75f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5124], tls=0x7fc2da75f700, child_tidptr=0x7fc2da75f9d0) = 5124
[pid  5123] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5123] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5124 attached
 <unfinished ...>
[pid  5124] set_robust_list(0x7fc2da75f9e0, 24) = 0
[pid  5124] memfd_create("syzkaller", 0) = 3
[pid  5124] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fc2d233f000
[pid  5124] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304) = 4194304
[pid  5124] munmap(0x7fc2d233f000, 4194304) = 0
[pid  5124] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5124] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  5124] close(3)                    = 0
[pid  5124] mkdir("./file0", 0777)      = 0
[   78.042474][ T5124] loop0: detected capacity change from 0 to 8192
[   78.054944][ T5124] REISERFS warning:  read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025
[   78.068075][ T5124] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal
[   78.077427][ T5124] REISERFS (device loop0): using ordered data mode
[   78.083969][ T5124] reiserfs: using flush barriers
[   78.090259][ T5124] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30
[   78.106681][ T5124] REISERFS (device loop0): checking transaction log (loop0)
[pid  5124] mount("/dev/loop0", "./file0", "reiserfs", MS_NOEXEC|MS_I_VERSION, "") = 0
[pid  5124] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid  5124] chdir("./file0")            = 0
[pid  5124] ioctl(4, LOOP_CLR_FD)       = 0
[pid  5124] close(4)                    = 0
[pid  5124] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5123] <... futex resumed>)        = 0
[pid  5124] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_LARGEFILE|O_NOATIME, 000 <unfinished ...>
[pid  5123] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5124] <... open resumed>)         = 4
[pid  5123] <... futex resumed>)        = 0
[pid  5124] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5123] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5124] <... futex resumed>)        = 0
[pid  5123] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5124] ftruncate(4, 3608577 <unfinished ...>
[pid  5123] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5123] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5124] <... ftruncate resumed>)    = 0
[pid  5124] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5123] <... futex resumed>)        = 0
[pid  5123] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5124] <... futex resumed>)        = 1
[pid  5123] <... futex resumed>)        = 0
[pid  5124] openat(AT_FDCWD, ".log", O_WRONLY|O_CREAT|O_TRUNC, 000 <unfinished ...>
[pid  5123] futex(0x7fc2da8397bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5124] <... openat resumed>)       = 5
[pid  5123] <... futex resumed>)        = 0
[pid  5124] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5123] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid  5124] <... futex resumed>)        = 0
[pid  5123] <... mmap resumed>)         = 0x7fc2d271e000
[pid  5124] futex(0x7fc2da8397a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5123] mprotect(0x7fc2d271f000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5123] clone(child_stack=0x7fc2d273e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5126], tls=0x7fc2d273e700, child_tidptr=0x7fc2d273e9d0) = 5126
[pid  5123] futex(0x7fc2da8397b8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5123] futex(0x7fc2da8397bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5126 attached
 <unfinished ...>
[pid  5126] set_robust_list(0x7fc2d273e9e0, 24) = 0
[pid  5126] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000) = 0
[pid  5126] futex(0x7fc2da8397bc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5123] <... futex resumed>)        = 0
[pid  5126] futex(0x7fc2da8397b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5123] exit_group(0 <unfinished ...>
[pid  5126] <... futex resumed>)        = ?
[pid  5124] <... futex resumed>)        = ?
[pid  5123] <... exit_group resumed>)   = ?
[pid  5124] +++ exited with 0 +++
[pid  5126] +++ exited with 0 +++
[pid  5123] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5123, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./8", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./8", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x55555753e620 /* 4 entries */, 32768) = 112
[   78.161334][ T5124] REISERFS (device loop0): Using r5 hash to sort names
[   78.168585][ T5124] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage.
umount2("./8/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./8/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./8/binderfs")                  = 0
umount2("./8/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./8/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./8/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./8/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./8/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555557546660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555557546660 /* 0 entries */, 32768) = 0
close(4)                                = 0
rmdir("./8/file0")                      = 0
getdents64(3, 0x55555753e620 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./8")                            = 0
mkdir("./9", 0777)                      = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR)  = 3
ioctl(3, LOOP_CLR_FD)                   = -1 ENXIO (No such device or address)
close(3)                                = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555753d5d0) = 5127
./strace-static-x86_64: Process 5127 attached
[pid  5127] set_robust_list(0x55555753d5e0, 24) = 0
[pid  5127] chdir("./9")                = 0
[pid  5127] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5127] setpgid(0, 0)               = 0
[pid  5127] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5127] write(3, "1000", 4)         = 4
[pid  5127] close(3)                    = 0
[pid  5127] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5127] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5127] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc2da73f000
[pid  5127] mprotect(0x7fc2da740000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5127] clone(child_stack=0x7fc2da75f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5128], tls=0x7fc2da75f700, child_tidptr=0x7fc2da75f9d0) = 5128
[pid  5127] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5127] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5128 attached
 <unfinished ...>
[pid  5128] set_robust_list(0x7fc2da75f9e0, 24) = 0
[pid  5128] memfd_create("syzkaller", 0) = 3
[pid  5128] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fc2d233f000
[pid  5128] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304) = 4194304
[pid  5128] munmap(0x7fc2d233f000, 4194304) = 0
[pid  5128] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5128] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  5128] close(3)                    = 0
[pid  5128] mkdir("./file0", 0777)      = 0
[   78.388474][ T5128] loop0: detected capacity change from 0 to 8192
[   78.399528][ T5128] REISERFS warning:  read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025
[   78.412666][ T5128] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal
[   78.421955][ T5128] REISERFS (device loop0): using ordered data mode
[   78.428618][ T5128] reiserfs: using flush barriers
[   78.434659][ T5128] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30
[   78.451112][ T5128] REISERFS (device loop0): checking transaction log (loop0)
[pid  5128] mount("/dev/loop0", "./file0", "reiserfs", MS_NOEXEC|MS_I_VERSION, "") = 0
[pid  5128] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid  5128] chdir("./file0")            = 0
[pid  5128] ioctl(4, LOOP_CLR_FD)       = 0
[pid  5128] close(4)                    = 0
[pid  5128] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5127] <... futex resumed>)        = 0
[pid  5128] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_LARGEFILE|O_NOATIME, 000 <unfinished ...>
[pid  5127] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5128] <... open resumed>)         = 4
[pid  5127] <... futex resumed>)        = 0
[pid  5128] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5127] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5128] <... futex resumed>)        = 0
[pid  5127] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5128] ftruncate(4, 3608577 <unfinished ...>
[pid  5127] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5128] <... ftruncate resumed>)    = 0
[pid  5127] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5128] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5127] <... futex resumed>)        = 0
[pid  5128] openat(AT_FDCWD, ".log", O_WRONLY|O_CREAT|O_TRUNC, 000 <unfinished ...>
[pid  5127] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5128] <... openat resumed>)       = 5
[pid  5127] <... futex resumed>)        = 0
[pid  5128] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5127] futex(0x7fc2da8397bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5128] <... futex resumed>)        = 0
[pid  5127] <... futex resumed>)        = 0
[pid  5128] futex(0x7fc2da8397a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5127] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc2d271e000
[pid  5127] mprotect(0x7fc2d271f000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5127] clone(child_stack=0x7fc2d273e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5130], tls=0x7fc2d273e700, child_tidptr=0x7fc2d273e9d0) = 5130
[pid  5127] futex(0x7fc2da8397b8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5127] futex(0x7fc2da8397bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5130 attached
 <unfinished ...>
[pid  5130] set_robust_list(0x7fc2d273e9e0, 24) = 0
[pid  5130] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000) = 0
[pid  5130] futex(0x7fc2da8397bc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5127] <... futex resumed>)        = 0
[pid  5127] exit_group(0 <unfinished ...>
[pid  5128] <... futex resumed>)        = ?
[pid  5127] <... exit_group resumed>)   = ?
[pid  5128] +++ exited with 0 +++
[pid  5130] +++ exited with 0 +++
[pid  5127] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5127, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} ---
umount2("./9", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./9", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[   78.508050][ T5128] REISERFS (device loop0): Using r5 hash to sort names
[   78.515205][ T5128] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage.
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x55555753e620 /* 4 entries */, 32768) = 112
umount2("./9/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./9/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./9/binderfs")                  = 0
umount2("./9/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./9/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./9/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./9/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./9/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555557546660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555557546660 /* 0 entries */, 32768) = 0
close(4)                                = 0
rmdir("./9/file0")                      = 0
getdents64(3, 0x55555753e620 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./9")                            = 0
mkdir("./10", 0777)                     = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR)  = 3
ioctl(3, LOOP_CLR_FD)                   = -1 ENXIO (No such device or address)
close(3)                                = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555753d5d0) = 5131
./strace-static-x86_64: Process 5131 attached
[pid  5131] set_robust_list(0x55555753d5e0, 24) = 0
[pid  5131] chdir("./10")               = 0
[pid  5131] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5131] setpgid(0, 0)               = 0
[pid  5131] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5131] write(3, "1000", 4)         = 4
[pid  5131] close(3)                    = 0
[pid  5131] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5131] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5131] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc2da73f000
[pid  5131] mprotect(0x7fc2da740000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5131] clone(child_stack=0x7fc2da75f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5132], tls=0x7fc2da75f700, child_tidptr=0x7fc2da75f9d0) = 5132
[pid  5131] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5131] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5132 attached
 <unfinished ...>
[pid  5132] set_robust_list(0x7fc2da75f9e0, 24) = 0
[pid  5132] memfd_create("syzkaller", 0) = 3
[pid  5132] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fc2d233f000
[pid  5132] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304) = 4194304
[pid  5132] munmap(0x7fc2d233f000, 4194304) = 0
[pid  5132] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5132] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  5132] close(3)                    = 0
[pid  5132] mkdir("./file0", 0777)      = 0
[   78.710370][ T5132] loop0: detected capacity change from 0 to 8192
[   78.720656][ T5132] REISERFS warning:  read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025
[   78.733939][ T5132] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal
[   78.743554][ T5132] REISERFS (device loop0): using ordered data mode
[   78.750221][ T5132] reiserfs: using flush barriers
[   78.756301][ T5132] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30
[   78.772839][ T5132] REISERFS (device loop0): checking transaction log (loop0)
[pid  5132] mount("/dev/loop0", "./file0", "reiserfs", MS_NOEXEC|MS_I_VERSION, "") = 0
[pid  5132] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid  5132] chdir("./file0")            = 0
[pid  5132] ioctl(4, LOOP_CLR_FD)       = 0
[pid  5132] close(4)                    = 0
[pid  5132] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5131] <... futex resumed>)        = 0
[pid  5131] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5131] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5132] <... futex resumed>)        = 1
[pid  5132] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_LARGEFILE|O_NOATIME, 000) = 4
[pid  5132] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5131] <... futex resumed>)        = 0
[pid  5131] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5131] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5132] <... futex resumed>)        = 1
[pid  5132] ftruncate(4, 3608577)       = 0
[pid  5132] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5131] <... futex resumed>)        = 0
[pid  5131] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5131] futex(0x7fc2da8397bc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5131] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc2d271e000
[pid  5131] mprotect(0x7fc2d271f000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5131] clone(child_stack=0x7fc2d273e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5134], tls=0x7fc2d273e700, child_tidptr=0x7fc2d273e9d0) = 5134
[pid  5131] futex(0x7fc2da8397b8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5131] futex(0x7fc2da8397bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5132] <... futex resumed>)        = 1
[pid  5132] openat(AT_FDCWD, ".log", O_WRONLY|O_CREAT|O_TRUNC, 000) = 5
[pid  5132] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5132] futex(0x7fc2da8397a8, FUTEX_WAIT_PRIVATE, 0, NULL./strace-static-x86_64: Process 5134 attached
 <unfinished ...>
[pid  5134] set_robust_list(0x7fc2d273e9e0, 24) = 0
[pid  5134] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000) = 0
[pid  5134] futex(0x7fc2da8397bc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5131] <... futex resumed>)        = 0
[pid  5134] futex(0x7fc2da8397b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5131] exit_group(0 <unfinished ...>
[pid  5134] <... futex resumed>)        = ?
[pid  5132] <... futex resumed>)        = ?
[pid  5131] <... exit_group resumed>)   = ?
[pid  5134] +++ exited with 0 +++
[pid  5132] +++ exited with 0 +++
[pid  5131] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5131, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} ---
umount2("./10", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./10", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x55555753e620 /* 4 entries */, 32768) = 112
umount2("./10/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./10/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./10/binderfs")                 = 0
[   78.828364][ T5132] REISERFS (device loop0): Using r5 hash to sort names
[   78.835710][ T5132] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage.
umount2("./10/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./10/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./10/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./10/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./10/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555557546660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555557546660 /* 0 entries */, 32768) = 0
close(4)                                = 0
rmdir("./10/file0")                     = 0
getdents64(3, 0x55555753e620 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./10")                           = 0
mkdir("./11", 0777)                     = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR)  = 3
ioctl(3, LOOP_CLR_FD)                   = -1 ENXIO (No such device or address)
close(3)                                = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555753d5d0) = 5135
./strace-static-x86_64: Process 5135 attached
[pid  5135] set_robust_list(0x55555753d5e0, 24) = 0
[pid  5135] chdir("./11")               = 0
[pid  5135] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5135] setpgid(0, 0)               = 0
[pid  5135] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5135] write(3, "1000", 4)         = 4
[pid  5135] close(3)                    = 0
[pid  5135] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5135] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5135] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc2da73f000
[pid  5135] mprotect(0x7fc2da740000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5135] clone(child_stack=0x7fc2da75f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5136], tls=0x7fc2da75f700, child_tidptr=0x7fc2da75f9d0) = 5136
[pid  5135] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5135] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5136 attached
 <unfinished ...>
[pid  5136] set_robust_list(0x7fc2da75f9e0, 24) = 0
[pid  5136] memfd_create("syzkaller", 0) = 3
[pid  5136] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fc2d233f000
[pid  5136] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304) = 4194304
[pid  5136] munmap(0x7fc2d233f000, 4194304) = 0
[pid  5136] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5136] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  5136] close(3)                    = 0
[pid  5136] mkdir("./file0", 0777)      = 0
[   79.023359][ T5136] loop0: detected capacity change from 0 to 8192
[   79.033074][ T5136] REISERFS warning:  read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025
[   79.046135][ T5136] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal
[   79.055408][ T5136] REISERFS (device loop0): using ordered data mode
[   79.061936][ T5136] reiserfs: using flush barriers
[   79.068112][ T5136] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30
[   79.085209][ T5136] REISERFS (device loop0): checking transaction log (loop0)
[pid  5136] mount("/dev/loop0", "./file0", "reiserfs", MS_NOEXEC|MS_I_VERSION, "") = 0
[pid  5136] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid  5136] chdir("./file0")            = 0
[pid  5136] ioctl(4, LOOP_CLR_FD)       = 0
[pid  5136] close(4)                    = 0
[pid  5136] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5135] <... futex resumed>)        = 0
[pid  5136] futex(0x7fc2da8397a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5135] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5136] <... futex resumed>)        = 0
[pid  5135] <... futex resumed>)        = 1
[pid  5136] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_LARGEFILE|O_NOATIME, 000 <unfinished ...>
[pid  5135] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5136] <... open resumed>)         = 4
[pid  5136] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5135] <... futex resumed>)        = 0
[pid  5136] ftruncate(4, 3608577 <unfinished ...>
[pid  5135] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5136] <... ftruncate resumed>)    = 0
[pid  5135] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5136] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5135] <... futex resumed>)        = 0
[pid  5136] openat(AT_FDCWD, ".log", O_WRONLY|O_CREAT|O_TRUNC, 000 <unfinished ...>
[pid  5135] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5136] <... openat resumed>)       = 5
[pid  5135] <... futex resumed>)        = 0
[pid  5135] futex(0x7fc2da8397bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5136] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5135] <... futex resumed>)        = 0
[pid  5136] <... futex resumed>)        = 0
[pid  5135] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid  5136] futex(0x7fc2da8397a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5135] <... mmap resumed>)         = 0x7fc2d271e000
[pid  5135] mprotect(0x7fc2d271f000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5135] clone(child_stack=0x7fc2d273e3f0, 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 5138 attached
 <unfinished ...>
[pid  5138] set_robust_list(0x7fc2d273e9e0, 24 <unfinished ...>
[pid  5135] <... clone resumed>, parent_tid=[5138], tls=0x7fc2d273e700, child_tidptr=0x7fc2d273e9d0) = 5138
[pid  5138] <... set_robust_list resumed>) = 0
[pid  5135] futex(0x7fc2da8397b8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5138] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 <unfinished ...>
[pid  5135] <... futex resumed>)        = 0
[pid  5135] futex(0x7fc2da8397bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5138] <... mknod resumed>)        = 0
[pid  5138] futex(0x7fc2da8397bc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5135] <... futex resumed>)        = 0
[pid  5135] exit_group(0 <unfinished ...>
[pid  5136] <... futex resumed>)        = ?
[pid  5135] <... exit_group resumed>)   = ?
[pid  5136] +++ exited with 0 +++
[pid  5138] +++ exited with 0 +++
[pid  5135] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5135, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=14 /* 0.14 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./11", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./11", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x55555753e620 /* 4 entries */, 32768) = 112
umount2("./11/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./11/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./11/binderfs")                 = 0
[   79.140405][ T5136] REISERFS (device loop0): Using r5 hash to sort names
[   79.147693][ T5136] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage.
umount2("./11/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./11/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./11/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./11/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./11/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555557546660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555557546660 /* 0 entries */, 32768) = 0
close(4)                                = 0
rmdir("./11/file0")                     = 0
getdents64(3, 0x55555753e620 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./11")                           = 0
mkdir("./12", 0777)                     = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR)  = 3
ioctl(3, LOOP_CLR_FD)                   = -1 ENXIO (No such device or address)
close(3)                                = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555753d5d0) = 5139
./strace-static-x86_64: Process 5139 attached
[pid  5139] set_robust_list(0x55555753d5e0, 24) = 0
[pid  5139] chdir("./12")               = 0
[pid  5139] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5139] setpgid(0, 0)               = 0
[pid  5139] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5139] write(3, "1000", 4)         = 4
[pid  5139] close(3)                    = 0
[pid  5139] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5139] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5139] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc2da73f000
[pid  5139] mprotect(0x7fc2da740000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5139] clone(child_stack=0x7fc2da75f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5140], tls=0x7fc2da75f700, child_tidptr=0x7fc2da75f9d0) = 5140
[pid  5139] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5139] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5140 attached
 <unfinished ...>
[pid  5140] set_robust_list(0x7fc2da75f9e0, 24) = 0
[pid  5140] memfd_create("syzkaller", 0) = 3
[pid  5140] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fc2d233f000
[pid  5140] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304) = 4194304
[pid  5140] munmap(0x7fc2d233f000, 4194304) = 0
[pid  5140] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5140] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  5140] close(3)                    = 0
[pid  5140] mkdir("./file0", 0777)      = 0
[   79.327428][ T5140] loop0: detected capacity change from 0 to 8192
[   79.338883][ T5140] REISERFS warning:  read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025
[   79.352073][ T5140] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal
[   79.361667][ T5140] REISERFS (device loop0): using ordered data mode
[   79.368359][ T5140] reiserfs: using flush barriers
[   79.374406][ T5140] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30
[   79.391013][ T5140] REISERFS (device loop0): checking transaction log (loop0)
[pid  5140] mount("/dev/loop0", "./file0", "reiserfs", MS_NOEXEC|MS_I_VERSION, "") = 0
[pid  5140] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid  5140] chdir("./file0")            = 0
[pid  5140] ioctl(4, LOOP_CLR_FD)       = 0
[pid  5140] close(4)                    = 0
[pid  5140] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5139] <... futex resumed>)        = 0
[pid  5140] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_LARGEFILE|O_NOATIME, 000 <unfinished ...>
[pid  5139] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5140] <... open resumed>)         = 4
[pid  5139] <... futex resumed>)        = 0
[pid  5139] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5140] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5139] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5140] <... futex resumed>)        = 0
[pid  5139] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5140] ftruncate(4, 3608577 <unfinished ...>
[pid  5139] <... futex resumed>)        = 0
[pid  5139] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5140] <... ftruncate resumed>)    = 0
[pid  5140] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5139] <... futex resumed>)        = 0
[pid  5140] openat(AT_FDCWD, ".log", O_WRONLY|O_CREAT|O_TRUNC, 000 <unfinished ...>
[pid  5139] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5140] <... openat resumed>)       = 5
[pid  5139] <... futex resumed>)        = 0
[pid  5140] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5139] futex(0x7fc2da8397bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5140] <... futex resumed>)        = 0
[pid  5139] <... futex resumed>)        = 0
[pid  5140] futex(0x7fc2da8397a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5139] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc2d271e000
[pid  5139] mprotect(0x7fc2d271f000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5139] clone(child_stack=0x7fc2d273e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5142], tls=0x7fc2d273e700, child_tidptr=0x7fc2d273e9d0) = 5142
[pid  5139] futex(0x7fc2da8397b8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5139] futex(0x7fc2da8397bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5142 attached
 <unfinished ...>
[pid  5142] set_robust_list(0x7fc2d273e9e0, 24) = 0
[pid  5142] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000) = 0
[pid  5142] futex(0x7fc2da8397bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5139] <... futex resumed>)        = 0
[pid  5142] <... futex resumed>)        = 1
[pid  5142] futex(0x7fc2da8397b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5139] exit_group(0 <unfinished ...>
[pid  5140] <... futex resumed>)        = ?
[pid  5139] <... exit_group resumed>)   = ?
[pid  5140] +++ exited with 0 +++
[pid  5142] <... futex resumed>)        = ?
[pid  5142] +++ exited with 0 +++
[pid  5139] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5139, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./12", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[   79.445901][ T5140] REISERFS (device loop0): Using r5 hash to sort names
[   79.453035][ T5140] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage.
openat(AT_FDCWD, "./12", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x55555753e620 /* 4 entries */, 32768) = 112
umount2("./12/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./12/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./12/binderfs")                 = 0
umount2("./12/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./12/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./12/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./12/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./12/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555557546660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555557546660 /* 0 entries */, 32768) = 0
close(4)                                = 0
rmdir("./12/file0")                     = 0
getdents64(3, 0x55555753e620 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./12")                           = 0
mkdir("./13", 0777)                     = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR)  = 3
ioctl(3, LOOP_CLR_FD)                   = -1 ENXIO (No such device or address)
close(3)                                = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555753d5d0) = 5143
./strace-static-x86_64: Process 5143 attached
[pid  5143] set_robust_list(0x55555753d5e0, 24) = 0
[pid  5143] chdir("./13")               = 0
[pid  5143] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5143] setpgid(0, 0)               = 0
[pid  5143] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5143] write(3, "1000", 4)         = 4
[pid  5143] close(3)                    = 0
[pid  5143] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5143] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5143] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc2da73f000
[pid  5143] mprotect(0x7fc2da740000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5143] clone(child_stack=0x7fc2da75f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5144], tls=0x7fc2da75f700, child_tidptr=0x7fc2da75f9d0) = 5144
[pid  5143] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5143] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5144 attached
 <unfinished ...>
[pid  5144] set_robust_list(0x7fc2da75f9e0, 24) = 0
[pid  5144] memfd_create("syzkaller", 0) = 3
[pid  5144] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fc2d233f000
[pid  5144] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304) = 4194304
[pid  5144] munmap(0x7fc2d233f000, 4194304) = 0
[pid  5144] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5144] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  5144] close(3)                    = 0
[pid  5144] mkdir("./file0", 0777)      = 0
[   79.671366][ T5144] loop0: detected capacity change from 0 to 8192
[   79.682451][ T5144] REISERFS warning:  read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025
[   79.695731][ T5144] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal
[   79.705060][ T5144] REISERFS (device loop0): using ordered data mode
[   79.711592][ T5144] reiserfs: using flush barriers
[   79.717876][ T5144] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30
[   79.734369][ T5144] REISERFS (device loop0): checking transaction log (loop0)
[pid  5144] mount("/dev/loop0", "./file0", "reiserfs", MS_NOEXEC|MS_I_VERSION, "") = 0
[pid  5144] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid  5144] chdir("./file0")            = 0
[pid  5144] ioctl(4, LOOP_CLR_FD)       = 0
[pid  5144] close(4)                    = 0
[pid  5144] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5143] <... futex resumed>)        = 0
[pid  5143] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5143] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5144] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_LARGEFILE|O_NOATIME, 000) = 4
[pid  5144] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5143] <... futex resumed>)        = 0
[pid  5143] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5143] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5144] ftruncate(4, 3608577)       = 0
[pid  5144] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5143] <... futex resumed>)        = 0
[pid  5143] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5144] openat(AT_FDCWD, ".log", O_WRONLY|O_CREAT|O_TRUNC, 000 <unfinished ...>
[pid  5143] <... futex resumed>)        = 0
[pid  5143] futex(0x7fc2da8397bc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[   79.791133][ T5144] REISERFS (device loop0): Using r5 hash to sort names
[   79.798338][ T5144] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage.
[pid  5143] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc2d271e000
[pid  5144] <... openat resumed>)       = 5
[pid  5143] mprotect(0x7fc2d271f000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid  5144] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5143] <... mprotect resumed>)     = 0
[pid  5143] clone(child_stack=0x7fc2d273e3f0, 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 5146 attached
 <unfinished ...>
[pid  5144] <... futex resumed>)        = 0
[pid  5144] futex(0x7fc2da8397a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5143] <... clone resumed>, parent_tid=[5146], tls=0x7fc2d273e700, child_tidptr=0x7fc2d273e9d0) = 5146
[pid  5143] futex(0x7fc2da8397b8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5143] futex(0x7fc2da8397bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5146] set_robust_list(0x7fc2d273e9e0, 24) = 0
[pid  5146] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000) = 0
[pid  5146] futex(0x7fc2da8397bc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5143] <... futex resumed>)        = 0
[pid  5143] exit_group(0 <unfinished ...>
[pid  5144] <... futex resumed>)        = ?
[pid  5143] <... exit_group resumed>)   = ?
[pid  5144] +++ exited with 0 +++
[pid  5146] +++ exited with 0 +++
[pid  5143] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5143, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./13", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./13", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x55555753e620 /* 4 entries */, 32768) = 112
umount2("./13/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./13/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./13/binderfs")                 = 0
umount2("./13/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./13/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./13/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./13/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./13/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555557546660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555557546660 /* 0 entries */, 32768) = 0
close(4)                                = 0
rmdir("./13/file0")                     = 0
getdents64(3, 0x55555753e620 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./13")                           = 0
mkdir("./14", 0777)                     = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR)  = 3
ioctl(3, LOOP_CLR_FD)                   = -1 ENXIO (No such device or address)
close(3)                                = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555753d5d0) = 5147
./strace-static-x86_64: Process 5147 attached
[pid  5147] set_robust_list(0x55555753d5e0, 24) = 0
[pid  5147] chdir("./14")               = 0
[pid  5147] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5147] setpgid(0, 0)               = 0
[pid  5147] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5147] write(3, "1000", 4)         = 4
[pid  5147] close(3)                    = 0
[pid  5147] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5147] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5147] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc2da73f000
[pid  5147] mprotect(0x7fc2da740000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5147] clone(child_stack=0x7fc2da75f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5148], tls=0x7fc2da75f700, child_tidptr=0x7fc2da75f9d0) = 5148
[pid  5147] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5147] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5148 attached
 <unfinished ...>
[pid  5148] set_robust_list(0x7fc2da75f9e0, 24) = 0
[pid  5148] memfd_create("syzkaller", 0) = 3
[pid  5148] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fc2d233f000
[pid  5148] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304) = 4194304
[pid  5148] munmap(0x7fc2d233f000, 4194304) = 0
[pid  5148] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5148] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  5148] close(3)                    = 0
[pid  5148] mkdir("./file0", 0777)      = 0
[   80.010347][ T5148] loop0: detected capacity change from 0 to 8192
[   80.021670][ T5148] REISERFS warning:  read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025
[   80.034731][ T5148] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal
[   80.043938][ T5148] REISERFS (device loop0): using ordered data mode
[   80.050512][ T5148] reiserfs: using flush barriers
[   80.056547][ T5148] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30
[   80.073156][ T5148] REISERFS (device loop0): checking transaction log (loop0)
[pid  5148] mount("/dev/loop0", "./file0", "reiserfs", MS_NOEXEC|MS_I_VERSION, "") = 0
[pid  5148] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid  5148] chdir("./file0")            = 0
[pid  5148] ioctl(4, LOOP_CLR_FD)       = 0
[pid  5148] close(4)                    = 0
[pid  5148] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5147] <... futex resumed>)        = 0
[pid  5148] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_LARGEFILE|O_NOATIME, 000 <unfinished ...>
[pid  5147] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5148] <... open resumed>)         = 4
[pid  5147] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5148] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5147] <... futex resumed>)        = 0
[pid  5148] ftruncate(4, 3608577 <unfinished ...>
[pid  5147] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5148] <... ftruncate resumed>)    = 0
[pid  5147] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5148] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5147] <... futex resumed>)        = 0
[pid  5148] openat(AT_FDCWD, ".log", O_WRONLY|O_CREAT|O_TRUNC, 000 <unfinished ...>
[pid  5147] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5148] <... openat resumed>)       = 5
[pid  5147] <... futex resumed>)        = 0
[pid  5148] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5147] futex(0x7fc2da8397bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5148] <... futex resumed>)        = 0
[pid  5147] <... futex resumed>)        = 0
[pid  5148] futex(0x7fc2da8397a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5147] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc2d271e000
[pid  5147] mprotect(0x7fc2d271f000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5147] clone(child_stack=0x7fc2d273e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5150], tls=0x7fc2d273e700, child_tidptr=0x7fc2d273e9d0) = 5150
[pid  5147] futex(0x7fc2da8397b8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5147] futex(0x7fc2da8397bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5150 attached
 <unfinished ...>
[pid  5150] set_robust_list(0x7fc2d273e9e0, 24) = 0
[pid  5150] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000) = 0
[pid  5150] futex(0x7fc2da8397bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5147] <... futex resumed>)        = 0
[pid  5150] <... futex resumed>)        = 1
[pid  5150] futex(0x7fc2da8397b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5147] exit_group(0 <unfinished ...>
[pid  5150] <... futex resumed>)        = ?
[pid  5148] <... futex resumed>)        = ?
[pid  5147] <... exit_group resumed>)   = ?
[pid  5148] +++ exited with 0 +++
[pid  5150] +++ exited with 0 +++
[pid  5147] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5147, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
[   80.129075][ T5148] REISERFS (device loop0): Using r5 hash to sort names
[   80.136311][ T5148] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage.
umount2("./14", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./14", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x55555753e620 /* 4 entries */, 32768) = 112
umount2("./14/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./14/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./14/binderfs")                 = 0
umount2("./14/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./14/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./14/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./14/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./14/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555557546660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555557546660 /* 0 entries */, 32768) = 0
close(4)                                = 0
rmdir("./14/file0")                     = 0
getdents64(3, 0x55555753e620 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./14")                           = 0
mkdir("./15", 0777)                     = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR)  = 3
ioctl(3, LOOP_CLR_FD)                   = -1 ENXIO (No such device or address)
close(3)                                = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555753d5d0) = 5151
./strace-static-x86_64: Process 5151 attached
[pid  5151] set_robust_list(0x55555753d5e0, 24) = 0
[pid  5151] chdir("./15")               = 0
[pid  5151] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5151] setpgid(0, 0)               = 0
[pid  5151] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5151] write(3, "1000", 4)         = 4
[pid  5151] close(3)                    = 0
[pid  5151] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5151] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5151] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc2da73f000
[pid  5151] mprotect(0x7fc2da740000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5151] clone(child_stack=0x7fc2da75f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5152], tls=0x7fc2da75f700, child_tidptr=0x7fc2da75f9d0) = 5152
[pid  5151] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5151] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5152 attached
 <unfinished ...>
[pid  5152] set_robust_list(0x7fc2da75f9e0, 24) = 0
[pid  5152] memfd_create("syzkaller", 0) = 3
[pid  5152] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fc2d233f000
[pid  5152] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304) = 4194304
[pid  5152] munmap(0x7fc2d233f000, 4194304) = 0
[pid  5152] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5152] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  5152] close(3)                    = 0
[pid  5152] mkdir("./file0", 0777)      = 0
[   80.334078][ T5152] loop0: detected capacity change from 0 to 8192
[   80.345867][ T5152] REISERFS warning:  read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025
[   80.359557][ T5152] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal
[   80.368882][ T5152] REISERFS (device loop0): using ordered data mode
[   80.375616][ T5152] reiserfs: using flush barriers
[   80.382421][ T5152] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30
[   80.398983][ T5152] REISERFS (device loop0): checking transaction log (loop0)
[pid  5152] mount("/dev/loop0", "./file0", "reiserfs", MS_NOEXEC|MS_I_VERSION, "") = 0
[pid  5152] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid  5152] chdir("./file0")            = 0
[pid  5152] ioctl(4, LOOP_CLR_FD)       = 0
[pid  5152] close(4)                    = 0
[pid  5152] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5151] <... futex resumed>)        = 0
[pid  5152] futex(0x7fc2da8397a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5151] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5152] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5151] <... futex resumed>)        = 0
[pid  5152] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_LARGEFILE|O_NOATIME, 000 <unfinished ...>
[pid  5151] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5152] <... open resumed>)         = 4
[pid  5152] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5151] <... futex resumed>)        = 0
[pid  5152] ftruncate(4, 3608577 <unfinished ...>
[pid  5151] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5152] <... ftruncate resumed>)    = 0
[pid  5151] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5152] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5151] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5152] <... futex resumed>)        = 0
[pid  5151] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5152] openat(AT_FDCWD, ".log", O_WRONLY|O_CREAT|O_TRUNC, 000 <unfinished ...>
[pid  5151] <... futex resumed>)        = 0
[pid  5152] <... openat resumed>)       = 5
[pid  5151] futex(0x7fc2da8397bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5152] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5151] <... futex resumed>)        = 0
[pid  5152] <... futex resumed>)        = 0
[pid  5151] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid  5152] futex(0x7fc2da8397a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5151] <... mmap resumed>)         = 0x7fc2d271e000
[pid  5151] mprotect(0x7fc2d271f000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5151] clone(child_stack=0x7fc2d273e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5154], tls=0x7fc2d273e700, child_tidptr=0x7fc2d273e9d0) = 5154
[pid  5151] futex(0x7fc2da8397b8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5151] futex(0x7fc2da8397bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5154 attached
 <unfinished ...>
[pid  5154] set_robust_list(0x7fc2d273e9e0, 24) = 0
[pid  5154] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000) = 0
[pid  5154] futex(0x7fc2da8397bc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5151] <... futex resumed>)        = 0
[pid  5151] exit_group(0)               = ?
[pid  5152] <... futex resumed>)        = ?
[pid  5152] +++ exited with 0 +++
[pid  5154] +++ exited with 0 +++
[pid  5151] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5151, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=15 /* 0.15 s */} ---
umount2("./15", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./15", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x55555753e620 /* 4 entries */, 32768) = 112
umount2("./15/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./15/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./15/binderfs")                 = 0
[   80.454193][ T5152] REISERFS (device loop0): Using r5 hash to sort names
[   80.461649][ T5152] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage.
umount2("./15/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./15/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./15/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./15/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./15/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555557546660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555557546660 /* 0 entries */, 32768) = 0
close(4)                                = 0
rmdir("./15/file0")                     = 0
getdents64(3, 0x55555753e620 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./15")                           = 0
mkdir("./16", 0777)                     = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR)  = 3
ioctl(3, LOOP_CLR_FD)                   = -1 ENXIO (No such device or address)
close(3)                                = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555753d5d0) = 5155
./strace-static-x86_64: Process 5155 attached
[pid  5155] set_robust_list(0x55555753d5e0, 24) = 0
[pid  5155] chdir("./16")               = 0
[pid  5155] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5155] setpgid(0, 0)               = 0
[pid  5155] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5155] write(3, "1000", 4)         = 4
[pid  5155] close(3)                    = 0
[pid  5155] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5155] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5155] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc2da73f000
[pid  5155] mprotect(0x7fc2da740000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5155] clone(child_stack=0x7fc2da75f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5156], tls=0x7fc2da75f700, child_tidptr=0x7fc2da75f9d0) = 5156
[pid  5155] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5155] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5156 attached
 <unfinished ...>
[pid  5156] set_robust_list(0x7fc2da75f9e0, 24) = 0
[pid  5156] memfd_create("syzkaller", 0) = 3
[pid  5156] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fc2d233f000
[pid  5156] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304) = 4194304
[pid  5156] munmap(0x7fc2d233f000, 4194304) = 0
[pid  5156] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5156] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  5156] close(3)                    = 0
[pid  5156] mkdir("./file0", 0777)      = 0
[   80.669256][ T5156] loop0: detected capacity change from 0 to 8192
[   80.680226][ T5156] REISERFS warning:  read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025
[   80.693669][ T5156] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal
[   80.703129][ T5156] REISERFS (device loop0): using ordered data mode
[   80.709730][ T5156] reiserfs: using flush barriers
[   80.715739][ T5156] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30
[   80.732210][ T5156] REISERFS (device loop0): checking transaction log (loop0)
[pid  5156] mount("/dev/loop0", "./file0", "reiserfs", MS_NOEXEC|MS_I_VERSION, "") = 0
[pid  5156] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid  5156] chdir("./file0")            = 0
[pid  5156] ioctl(4, LOOP_CLR_FD)       = 0
[pid  5156] close(4)                    = 0
[pid  5156] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5155] <... futex resumed>)        = 0
[pid  5156] futex(0x7fc2da8397a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5155] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5156] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5155] <... futex resumed>)        = 0
[pid  5156] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_LARGEFILE|O_NOATIME, 000 <unfinished ...>
[pid  5155] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5156] <... open resumed>)         = 4
[pid  5156] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5155] <... futex resumed>)        = 0
[pid  5156] futex(0x7fc2da8397a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5155] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5156] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5155] <... futex resumed>)        = 0
[pid  5156] ftruncate(4, 3608577 <unfinished ...>
[pid  5155] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5156] <... ftruncate resumed>)    = 0
[pid  5156] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5155] <... futex resumed>)        = 0
[pid  5156] openat(AT_FDCWD, ".log", O_WRONLY|O_CREAT|O_TRUNC, 000 <unfinished ...>
[pid  5155] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5155] futex(0x7fc2da8397bc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5156] <... openat resumed>)       = 5
[pid  5155] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc2d271e000
[pid  5155] mprotect(0x7fc2d271f000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid  5156] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5155] <... mprotect resumed>)     = 0
[pid  5156] <... futex resumed>)        = 0
[pid  5155] clone(child_stack=0x7fc2d273e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid  5156] futex(0x7fc2da8397a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5155] <... clone resumed>, parent_tid=[5158], tls=0x7fc2d273e700, child_tidptr=0x7fc2d273e9d0) = 5158
[pid  5155] futex(0x7fc2da8397b8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5155] futex(0x7fc2da8397bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5158 attached
 <unfinished ...>
[pid  5158] set_robust_list(0x7fc2d273e9e0, 24) = 0
[pid  5158] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000) = 0
[pid  5158] futex(0x7fc2da8397bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5155] <... futex resumed>)        = 0
[pid  5155] exit_group(0 <unfinished ...>
[pid  5156] <... futex resumed>)        = ?
[pid  5155] <... exit_group resumed>)   = ?
[pid  5156] +++ exited with 0 +++
[pid  5158] <... futex resumed>)        = ?
[pid  5158] +++ exited with 0 +++
[pid  5155] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5155, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=18 /* 0.18 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./16", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./16", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x55555753e620 /* 4 entries */, 32768) = 112
umount2("./16/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./16/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./16/binderfs")                 = 0
[   80.787581][ T5156] REISERFS (device loop0): Using r5 hash to sort names
[   80.794820][ T5156] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage.
umount2("./16/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./16/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./16/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./16/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./16/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555557546660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555557546660 /* 0 entries */, 32768) = 0
close(4)                                = 0
rmdir("./16/file0")                     = 0
getdents64(3, 0x55555753e620 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./16")                           = 0
mkdir("./17", 0777)                     = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR)  = 3
ioctl(3, LOOP_CLR_FD)                   = -1 ENXIO (No such device or address)
close(3)                                = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555753d5d0) = 5159
./strace-static-x86_64: Process 5159 attached
[pid  5159] set_robust_list(0x55555753d5e0, 24) = 0
[pid  5159] chdir("./17")               = 0
[pid  5159] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5159] setpgid(0, 0)               = 0
[pid  5159] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5159] write(3, "1000", 4)         = 4
[pid  5159] close(3)                    = 0
[pid  5159] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5159] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5159] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc2da73f000
[pid  5159] mprotect(0x7fc2da740000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5159] clone(child_stack=0x7fc2da75f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5160], tls=0x7fc2da75f700, child_tidptr=0x7fc2da75f9d0) = 5160
./strace-static-x86_64: Process 5160 attached
[pid  5159] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5159] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid  5160] set_robust_list(0x7fc2da75f9e0, 24) = 0
[pid  5160] memfd_create("syzkaller", 0) = 3
[pid  5160] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fc2d233f000
[pid  5160] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304) = 4194304
[pid  5160] munmap(0x7fc2d233f000, 4194304) = 0
[pid  5160] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5160] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  5160] close(3)                    = 0
[pid  5160] mkdir("./file0", 0777)      = 0
[   80.997538][ T5160] loop0: detected capacity change from 0 to 8192
[   81.007193][ T5160] REISERFS warning:  read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025
[   81.020265][ T5160] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal
[   81.029604][ T5160] REISERFS (device loop0): using ordered data mode
[   81.036197][ T5160] reiserfs: using flush barriers
[   81.042122][ T5160] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30
[   81.058633][ T5160] REISERFS (device loop0): checking transaction log (loop0)
[pid  5160] mount("/dev/loop0", "./file0", "reiserfs", MS_NOEXEC|MS_I_VERSION, "") = 0
[pid  5160] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid  5160] chdir("./file0")            = 0
[pid  5160] ioctl(4, LOOP_CLR_FD)       = 0
[pid  5160] close(4)                    = 0
[pid  5160] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5159] <... futex resumed>)        = 0
[pid  5160] futex(0x7fc2da8397a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5159] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5160] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5159] <... futex resumed>)        = 0
[pid  5160] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_LARGEFILE|O_NOATIME, 000 <unfinished ...>
[pid  5159] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5160] <... open resumed>)         = 4
[pid  5160] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5159] <... futex resumed>)        = 0
[pid  5160] futex(0x7fc2da8397a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5159] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5160] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5159] <... futex resumed>)        = 0
[pid  5160] ftruncate(4, 3608577 <unfinished ...>
[pid  5159] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5160] <... ftruncate resumed>)    = 0
[pid  5160] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5159] <... futex resumed>)        = 0
[pid  5160] futex(0x7fc2da8397a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5159] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5160] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5159] <... futex resumed>)        = 0
[pid  5160] openat(AT_FDCWD, ".log", O_WRONLY|O_CREAT|O_TRUNC, 000 <unfinished ...>
[pid  5159] futex(0x7fc2da8397bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5160] <... openat resumed>)       = 5
[pid  5160] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5159] <... futex resumed>)        = 0
[pid  5160] <... futex resumed>)        = 0
[pid  5159] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid  5160] futex(0x7fc2da8397a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5159] <... mmap resumed>)         = 0x7fc2d271e000
[pid  5159] mprotect(0x7fc2d271f000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5159] clone(child_stack=0x7fc2d273e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5162], tls=0x7fc2d273e700, child_tidptr=0x7fc2d273e9d0) = 5162
./strace-static-x86_64: Process 5162 attached
[pid  5159] futex(0x7fc2da8397b8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5159] futex(0x7fc2da8397bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5162] set_robust_list(0x7fc2d273e9e0, 24) = 0
[pid  5162] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000) = 0
[pid  5162] futex(0x7fc2da8397bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5159] <... futex resumed>)        = 0
[pid  5159] exit_group(0 <unfinished ...>
[pid  5162] <... futex resumed>)        = ?
[pid  5160] <... futex resumed>)        = ?
[pid  5159] <... exit_group resumed>)   = ?
[pid  5162] +++ exited with 0 +++
[pid  5160] +++ exited with 0 +++
[pid  5159] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5159, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=15 /* 0.15 s */} ---
umount2("./17", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./17", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x55555753e620 /* 4 entries */, 32768) = 112
umount2("./17/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./17/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
[   81.115279][ T5160] REISERFS (device loop0): Using r5 hash to sort names
[   81.122422][ T5160] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage.
unlink("./17/binderfs")                 = 0
umount2("./17/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./17/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./17/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./17/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./17/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555557546660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555557546660 /* 0 entries */, 32768) = 0
close(4)                                = 0
rmdir("./17/file0")                     = 0
getdents64(3, 0x55555753e620 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./17")                           = 0
mkdir("./18", 0777)                     = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR)  = 3
ioctl(3, LOOP_CLR_FD)                   = -1 ENXIO (No such device or address)
close(3)                                = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555753d5d0) = 5163
./strace-static-x86_64: Process 5163 attached
[pid  5163] set_robust_list(0x55555753d5e0, 24) = 0
[pid  5163] chdir("./18")               = 0
[pid  5163] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5163] setpgid(0, 0)               = 0
[pid  5163] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5163] write(3, "1000", 4)         = 4
[pid  5163] close(3)                    = 0
[pid  5163] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5163] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5163] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc2da73f000
[pid  5163] mprotect(0x7fc2da740000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5163] clone(child_stack=0x7fc2da75f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5164], tls=0x7fc2da75f700, child_tidptr=0x7fc2da75f9d0) = 5164
[pid  5163] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5163] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5164 attached
 <unfinished ...>
[pid  5164] set_robust_list(0x7fc2da75f9e0, 24) = 0
[pid  5164] memfd_create("syzkaller", 0) = 3
[pid  5164] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fc2d233f000
[pid  5164] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304) = 4194304
[pid  5164] munmap(0x7fc2d233f000, 4194304) = 0
[pid  5164] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5164] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  5164] close(3)                    = 0
[pid  5164] mkdir("./file0", 0777)      = 0
[   81.326313][ T5164] loop0: detected capacity change from 0 to 8192
[   81.337667][ T5164] REISERFS warning:  read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025
[   81.350779][ T5164] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal
[   81.360069][ T5164] REISERFS (device loop0): using ordered data mode
[   81.366657][ T5164] reiserfs: using flush barriers
[   81.372750][ T5164] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30
[   81.389306][ T5164] REISERFS (device loop0): checking transaction log (loop0)
[pid  5164] mount("/dev/loop0", "./file0", "reiserfs", MS_NOEXEC|MS_I_VERSION, "") = 0
[pid  5164] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid  5164] chdir("./file0")            = 0
[pid  5164] ioctl(4, LOOP_CLR_FD)       = 0
[pid  5164] close(4)                    = 0
[pid  5164] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5163] <... futex resumed>)        = 0
[pid  5164] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_LARGEFILE|O_NOATIME, 000 <unfinished ...>
[pid  5163] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5164] <... open resumed>)         = 4
[pid  5163] <... futex resumed>)        = 0
[pid  5163] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5164] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5163] <... futex resumed>)        = 0
[pid  5164] ftruncate(4, 3608577 <unfinished ...>
[pid  5163] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5163] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5164] <... ftruncate resumed>)    = 0
[pid  5164] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5163] <... futex resumed>)        = 0
[pid  5163] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5164] <... futex resumed>)        = 1
[pid  5163] futex(0x7fc2da8397bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5164] openat(AT_FDCWD, ".log", O_WRONLY|O_CREAT|O_TRUNC, 000 <unfinished ...>
[pid  5163] <... futex resumed>)        = 0
[pid  5164] <... openat resumed>)       = 5
[pid  5163] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid  5164] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5163] <... mmap resumed>)         = 0x7fc2d271e000
[pid  5164] <... futex resumed>)        = 0
[pid  5163] mprotect(0x7fc2d271f000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid  5164] futex(0x7fc2da8397a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5163] <... mprotect resumed>)     = 0
[pid  5163] clone(child_stack=0x7fc2d273e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5166], tls=0x7fc2d273e700, child_tidptr=0x7fc2d273e9d0) = 5166
[pid  5163] futex(0x7fc2da8397b8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5163] futex(0x7fc2da8397bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5166 attached
 <unfinished ...>
[pid  5166] set_robust_list(0x7fc2d273e9e0, 24) = 0
[pid  5166] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000) = 0
[pid  5166] futex(0x7fc2da8397bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5163] <... futex resumed>)        = 0
[pid  5166] <... futex resumed>)        = 1
[pid  5163] exit_group(0 <unfinished ...>
[pid  5164] <... futex resumed>)        = ?
[pid  5163] <... exit_group resumed>)   = ?
[pid  5164] +++ exited with 0 +++
[pid  5166] +++ exited with 0 +++
[pid  5163] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5163, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} ---
umount2("./18", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./18", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x55555753e620 /* 4 entries */, 32768) = 112
umount2("./18/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./18/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./18/binderfs")                 = 0
[   81.444459][ T5164] REISERFS (device loop0): Using r5 hash to sort names
[   81.451645][ T5164] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage.
umount2("./18/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./18/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./18/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./18/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./18/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555557546660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555557546660 /* 0 entries */, 32768) = 0
close(4)                                = 0
rmdir("./18/file0")                     = 0
getdents64(3, 0x55555753e620 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./18")                           = 0
mkdir("./19", 0777)                     = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR)  = 3
ioctl(3, LOOP_CLR_FD)                   = -1 ENXIO (No such device or address)
close(3)                                = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555753d5d0) = 5167
./strace-static-x86_64: Process 5167 attached
[pid  5167] set_robust_list(0x55555753d5e0, 24) = 0
[pid  5167] chdir("./19")               = 0
[pid  5167] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5167] setpgid(0, 0)               = 0
[pid  5167] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5167] write(3, "1000", 4)         = 4
[pid  5167] close(3)                    = 0
[pid  5167] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5167] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5167] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc2da73f000
[pid  5167] mprotect(0x7fc2da740000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5167] clone(child_stack=0x7fc2da75f3f0, 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 5168 attached
, parent_tid=[5168], tls=0x7fc2da75f700, child_tidptr=0x7fc2da75f9d0) = 5168
[pid  5168] set_robust_list(0x7fc2da75f9e0, 24 <unfinished ...>
[pid  5167] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5168] <... set_robust_list resumed>) = 0
[pid  5167] <... futex resumed>)        = 0
[pid  5167] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid  5168] memfd_create("syzkaller", 0) = 3
[pid  5168] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fc2d233f000
[pid  5168] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304) = 4194304
[pid  5168] munmap(0x7fc2d233f000, 4194304) = 0
[pid  5168] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5168] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  5168] close(3)                    = 0
[pid  5168] mkdir("./file0", 0777)      = 0
[   81.656635][ T5168] loop0: detected capacity change from 0 to 8192
[   81.669034][ T5168] REISERFS warning:  read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025
[   81.682175][ T5168] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal
[   81.691808][ T5168] REISERFS (device loop0): using ordered data mode
[   81.698700][ T5168] reiserfs: using flush barriers
[   81.705210][ T5168] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30
[   81.721835][ T5168] REISERFS (device loop0): checking transaction log (loop0)
[pid  5168] mount("/dev/loop0", "./file0", "reiserfs", MS_NOEXEC|MS_I_VERSION, "") = 0
[pid  5168] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid  5168] chdir("./file0")            = 0
[pid  5168] ioctl(4, LOOP_CLR_FD)       = 0
[pid  5168] close(4)                    = 0
[pid  5168] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5167] <... futex resumed>)        = 0
[pid  5168] futex(0x7fc2da8397a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5167] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5167] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5168] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5168] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_LARGEFILE|O_NOATIME, 000) = 4
[pid  5168] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5167] <... futex resumed>)        = 0
[pid  5168] ftruncate(4, 3608577 <unfinished ...>
[pid  5167] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5167] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5168] <... ftruncate resumed>)    = 0
[pid  5168] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5167] <... futex resumed>)        = 0
[pid  5168] openat(AT_FDCWD, ".log", O_WRONLY|O_CREAT|O_TRUNC, 000 <unfinished ...>
[pid  5167] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5168] <... openat resumed>)       = 5
[pid  5167] futex(0x7fc2da8397bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5168] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5167] <... futex resumed>)        = 0
[pid  5167] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid  5168] <... futex resumed>)        = 0
[pid  5168] futex(0x7fc2da8397a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5167] <... mmap resumed>)         = 0x7fc2d271e000
[pid  5167] mprotect(0x7fc2d271f000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5167] clone(child_stack=0x7fc2d273e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5170], tls=0x7fc2d273e700, child_tidptr=0x7fc2d273e9d0) = 5170
./strace-static-x86_64: Process 5170 attached
[pid  5167] futex(0x7fc2da8397b8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5167] futex(0x7fc2da8397bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5170] set_robust_list(0x7fc2d273e9e0, 24) = 0
[pid  5170] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000) = 0
[pid  5170] futex(0x7fc2da8397bc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5167] <... futex resumed>)        = 0
[pid  5170] futex(0x7fc2da8397b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5167] exit_group(0 <unfinished ...>
[pid  5170] <... futex resumed>)        = ?
[pid  5167] <... exit_group resumed>)   = ?
[pid  5170] +++ exited with 0 +++
[pid  5168] <... futex resumed>)        = ?
[pid  5168] +++ exited with 0 +++
[pid  5167] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5167, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
umount2("./19", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./19", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x55555753e620 /* 4 entries */, 32768) = 112
umount2("./19/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./19/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
[   81.777547][ T5168] REISERFS (device loop0): Using r5 hash to sort names
[   81.785537][ T5168] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage.
unlink("./19/binderfs")                 = 0
umount2("./19/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./19/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./19/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./19/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./19/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555557546660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555557546660 /* 0 entries */, 32768) = 0
close(4)                                = 0
rmdir("./19/file0")                     = 0
getdents64(3, 0x55555753e620 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./19")                           = 0
mkdir("./20", 0777)                     = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR)  = 3
ioctl(3, LOOP_CLR_FD)                   = -1 ENXIO (No such device or address)
close(3)                                = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555753d5d0) = 5171
./strace-static-x86_64: Process 5171 attached
[pid  5171] set_robust_list(0x55555753d5e0, 24) = 0
[pid  5171] chdir("./20")               = 0
[pid  5171] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5171] setpgid(0, 0)               = 0
[pid  5171] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5171] write(3, "1000", 4)         = 4
[pid  5171] close(3)                    = 0
[pid  5171] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5171] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5171] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc2da73f000
[pid  5171] mprotect(0x7fc2da740000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5171] clone(child_stack=0x7fc2da75f3f0, 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 5172 attached
, parent_tid=[5172], tls=0x7fc2da75f700, child_tidptr=0x7fc2da75f9d0) = 5172
[pid  5171] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5171] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid  5172] set_robust_list(0x7fc2da75f9e0, 24) = 0
[pid  5172] memfd_create("syzkaller", 0) = 3
[pid  5172] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fc2d233f000
[pid  5172] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304) = 4194304
[pid  5172] munmap(0x7fc2d233f000, 4194304) = 0
[pid  5172] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5172] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  5172] close(3)                    = 0
[pid  5172] mkdir("./file0", 0777)      = 0
[   81.993240][ T5172] loop0: detected capacity change from 0 to 8192
[   82.005291][ T5172] REISERFS warning:  read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025
[   82.018356][ T5172] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal
[   82.027916][ T5172] REISERFS (device loop0): using ordered data mode
[   82.034461][ T5172] reiserfs: using flush barriers
[   82.040839][ T5172] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30
[   82.057473][ T5172] REISERFS (device loop0): checking transaction log (loop0)
[pid  5172] mount("/dev/loop0", "./file0", "reiserfs", MS_NOEXEC|MS_I_VERSION, "") = 0
[pid  5172] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid  5172] chdir("./file0")            = 0
[pid  5172] ioctl(4, LOOP_CLR_FD)       = 0
[pid  5172] close(4)                    = 0
[pid  5172] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5171] <... futex resumed>)        = 0
[pid  5171] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5171] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5172] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_LARGEFILE|O_NOATIME, 000) = 4
[pid  5172] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5171] <... futex resumed>)        = 0
[pid  5172] ftruncate(4, 3608577 <unfinished ...>
[pid  5171] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5171] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5172] <... ftruncate resumed>)    = 0
[pid  5172] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5171] <... futex resumed>)        = 0
[pid  5172] <... futex resumed>)        = 1
[pid  5171] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5172] openat(AT_FDCWD, ".log", O_WRONLY|O_CREAT|O_TRUNC, 000 <unfinished ...>
[pid  5171] <... futex resumed>)        = 0
[pid  5171] futex(0x7fc2da8397bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5172] <... openat resumed>)       = 5
[pid  5171] <... futex resumed>)        = 0
[pid  5172] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5171] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid  5172] <... futex resumed>)        = 0
[pid  5171] <... mmap resumed>)         = 0x7fc2d271e000
[pid  5171] mprotect(0x7fc2d271f000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid  5172] futex(0x7fc2da8397a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5171] <... mprotect resumed>)     = 0
[pid  5171] clone(child_stack=0x7fc2d273e3f0, 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 5174 attached
 <unfinished ...>
[pid  5174] set_robust_list(0x7fc2d273e9e0, 24 <unfinished ...>
[pid  5171] <... clone resumed>, parent_tid=[5174], tls=0x7fc2d273e700, child_tidptr=0x7fc2d273e9d0) = 5174
[pid  5174] <... set_robust_list resumed>) = 0
[pid  5171] futex(0x7fc2da8397b8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5174] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 <unfinished ...>
[pid  5171] <... futex resumed>)        = 0
[pid  5171] futex(0x7fc2da8397bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5174] <... mknod resumed>)        = 0
[pid  5174] futex(0x7fc2da8397bc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5171] <... futex resumed>)        = 0
[pid  5174] futex(0x7fc2da8397b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5171] exit_group(0 <unfinished ...>
[pid  5172] <... futex resumed>)        = ?
[pid  5171] <... exit_group resumed>)   = ?
[pid  5174] <... futex resumed>)        = ?
[pid  5172] +++ exited with 0 +++
[pid  5174] +++ exited with 0 +++
[pid  5171] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5171, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./20", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./20", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[   82.115492][ T5172] REISERFS (device loop0): Using r5 hash to sort names
[   82.122659][ T5172] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage.
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x55555753e620 /* 4 entries */, 32768) = 112
umount2("./20/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./20/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./20/binderfs")                 = 0
umount2("./20/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./20/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./20/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./20/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./20/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555557546660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555557546660 /* 0 entries */, 32768) = 0
close(4)                                = 0
rmdir("./20/file0")                     = 0
getdents64(3, 0x55555753e620 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./20")                           = 0
mkdir("./21", 0777)                     = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR)  = 3
ioctl(3, LOOP_CLR_FD)                   = -1 ENXIO (No such device or address)
close(3)                                = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555753d5d0) = 5175
./strace-static-x86_64: Process 5175 attached
[pid  5175] set_robust_list(0x55555753d5e0, 24) = 0
[pid  5175] chdir("./21")               = 0
[pid  5175] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5175] setpgid(0, 0)               = 0
[pid  5175] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5175] write(3, "1000", 4)         = 4
[pid  5175] close(3)                    = 0
[pid  5175] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5175] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5175] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc2da73f000
[pid  5175] mprotect(0x7fc2da740000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5175] clone(child_stack=0x7fc2da75f3f0, 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 5176 attached
, parent_tid=[5176], tls=0x7fc2da75f700, child_tidptr=0x7fc2da75f9d0) = 5176
[pid  5175] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5175] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid  5176] set_robust_list(0x7fc2da75f9e0, 24) = 0
[pid  5176] memfd_create("syzkaller", 0) = 3
[pid  5176] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fc2d233f000
[pid  5176] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304) = 4194304
[pid  5176] munmap(0x7fc2d233f000, 4194304) = 0
[pid  5176] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5176] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  5176] close(3)                    = 0
[pid  5176] mkdir("./file0", 0777)      = 0
[   82.324024][ T5176] loop0: detected capacity change from 0 to 8192
[   82.334320][ T5176] REISERFS warning:  read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025
[   82.347609][ T5176] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal
[   82.357078][ T5176] REISERFS (device loop0): using ordered data mode
[   82.363610][ T5176] reiserfs: using flush barriers
[   82.370013][ T5176] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30
[   82.386632][ T5176] REISERFS (device loop0): checking transaction log (loop0)
[pid  5176] mount("/dev/loop0", "./file0", "reiserfs", MS_NOEXEC|MS_I_VERSION, "") = 0
[pid  5176] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid  5176] chdir("./file0")            = 0
[pid  5176] ioctl(4, LOOP_CLR_FD)       = 0
[pid  5176] close(4)                    = 0
[pid  5176] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5175] <... futex resumed>)        = 0
[pid  5176] futex(0x7fc2da8397a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5175] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5176] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5175] <... futex resumed>)        = 0
[pid  5176] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_LARGEFILE|O_NOATIME, 000 <unfinished ...>
[pid  5175] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5176] <... open resumed>)         = 4
[pid  5176] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5175] <... futex resumed>)        = 0
[pid  5175] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5175] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5176] ftruncate(4, 3608577)       = 0
[pid  5176] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5175] <... futex resumed>)        = 0
[pid  5175] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5175] futex(0x7fc2da8397bc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5175] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid  5176] openat(AT_FDCWD, ".log", O_WRONLY|O_CREAT|O_TRUNC, 000 <unfinished ...>
[pid  5175] <... mmap resumed>)         = 0x7fc2d271e000
[pid  5175] mprotect(0x7fc2d271f000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5175] clone(child_stack=0x7fc2d273e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid  5176] <... openat resumed>)       = 5
./strace-static-x86_64: Process 5178 attached
[pid  5176] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5178] set_robust_list(0x7fc2d273e9e0, 24 <unfinished ...>
[pid  5176] <... futex resumed>)        = 0
[pid  5175] <... clone resumed>, parent_tid=[5178], tls=0x7fc2d273e700, child_tidptr=0x7fc2d273e9d0) = 5178
[pid  5176] futex(0x7fc2da8397a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5175] futex(0x7fc2da8397b8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5175] futex(0x7fc2da8397bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5178] <... set_robust_list resumed>) = 0
[pid  5178] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000) = 0
[pid  5178] futex(0x7fc2da8397bc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5175] <... futex resumed>)        = 0
[pid  5175] exit_group(0 <unfinished ...>
[pid  5176] <... futex resumed>)        = ?
[pid  5175] <... exit_group resumed>)   = ?
[pid  5176] +++ exited with 0 +++
[pid  5178] +++ exited with 0 +++
[pid  5175] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5175, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x55555753e620 /* 4 entries */, 32768) = 112
umount2("./21/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./21/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./21/binderfs")                 = 0
[   82.446665][ T5176] REISERFS (device loop0): Using r5 hash to sort names
[   82.453758][ T5176] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage.
umount2("./21/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./21/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./21/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./21/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555557546660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555557546660 /* 0 entries */, 32768) = 0
close(4)                                = 0
rmdir("./21/file0")                     = 0
getdents64(3, 0x55555753e620 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21")                           = 0
mkdir("./22", 0777)                     = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR)  = 3
ioctl(3, LOOP_CLR_FD)                   = -1 ENXIO (No such device or address)
close(3)                                = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555753d5d0) = 5179
./strace-static-x86_64: Process 5179 attached
[pid  5179] set_robust_list(0x55555753d5e0, 24) = 0
[pid  5179] chdir("./22")               = 0
[pid  5179] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5179] setpgid(0, 0)               = 0
[pid  5179] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5179] write(3, "1000", 4)         = 4
[pid  5179] close(3)                    = 0
[pid  5179] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5179] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5179] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc2da73f000
[pid  5179] mprotect(0x7fc2da740000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5179] clone(child_stack=0x7fc2da75f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5180], tls=0x7fc2da75f700, child_tidptr=0x7fc2da75f9d0) = 5180
[pid  5179] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5179] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5180 attached
 <unfinished ...>
[pid  5180] set_robust_list(0x7fc2da75f9e0, 24) = 0
[pid  5180] memfd_create("syzkaller", 0) = 3
[pid  5180] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fc2d233f000
[pid  5180] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304) = 4194304
[pid  5180] munmap(0x7fc2d233f000, 4194304) = 0
[pid  5180] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5180] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  5180] close(3)                    = 0
[pid  5180] mkdir("./file0", 0777)      = 0
[   82.653029][ T5180] loop0: detected capacity change from 0 to 8192
[   82.663546][ T5180] REISERFS warning:  read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025
[   82.677545][ T5180] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal
[   82.687314][ T5180] REISERFS (device loop0): using ordered data mode
[   82.693932][ T5180] reiserfs: using flush barriers
[   82.700311][ T5180] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30
[   82.717035][ T5180] REISERFS (device loop0): checking transaction log (loop0)
[pid  5180] mount("/dev/loop0", "./file0", "reiserfs", MS_NOEXEC|MS_I_VERSION, "") = 0
[pid  5180] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid  5180] chdir("./file0")            = 0
[pid  5180] ioctl(4, LOOP_CLR_FD)       = 0
[pid  5180] close(4)                    = 0
[pid  5180] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5180] futex(0x7fc2da8397a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5179] <... futex resumed>)        = 0
[pid  5179] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5180] <... futex resumed>)        = 0
[pid  5179] <... futex resumed>)        = 1
[pid  5180] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_LARGEFILE|O_NOATIME, 000 <unfinished ...>
[pid  5179] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5180] <... open resumed>)         = 4
[pid  5180] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5179] <... futex resumed>)        = 0
[pid  5180] ftruncate(4, 3608577 <unfinished ...>
[pid  5179] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5180] <... ftruncate resumed>)    = 0
[pid  5179] <... futex resumed>)        = 0
[pid  5180] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5179] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5180] <... futex resumed>)        = 0
[pid  5179] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5180] openat(AT_FDCWD, ".log", O_WRONLY|O_CREAT|O_TRUNC, 000 <unfinished ...>
[pid  5179] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5180] <... openat resumed>)       = 5
[pid  5179] <... futex resumed>)        = 0
[pid  5180] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5179] futex(0x7fc2da8397bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5180] <... futex resumed>)        = 0
[pid  5179] <... futex resumed>)        = 0
[pid  5180] futex(0x7fc2da8397a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5179] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc2d271e000
[pid  5179] mprotect(0x7fc2d271f000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5179] clone(child_stack=0x7fc2d273e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5182], tls=0x7fc2d273e700, child_tidptr=0x7fc2d273e9d0) = 5182
[pid  5179] futex(0x7fc2da8397b8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5179] futex(0x7fc2da8397bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5182 attached
 <unfinished ...>
[pid  5182] set_robust_list(0x7fc2d273e9e0, 24) = 0
[pid  5182] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000) = 0
[pid  5182] futex(0x7fc2da8397bc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5179] <... futex resumed>)        = 0
[pid  5182] futex(0x7fc2da8397b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5179] exit_group(0 <unfinished ...>
[pid  5182] <... futex resumed>)        = ?
[pid  5180] <... futex resumed>)        = ?
[pid  5179] <... exit_group resumed>)   = ?
[pid  5182] +++ exited with 0 +++
[pid  5180] +++ exited with 0 +++
[pid  5179] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5179, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x55555753e620 /* 4 entries */, 32768) = 112
umount2("./22/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./22/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./22/binderfs")                 = 0
[   82.775889][ T5180] REISERFS (device loop0): Using r5 hash to sort names
[   82.783024][ T5180] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage.
umount2("./22/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./22/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./22/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./22/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555557546660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555557546660 /* 0 entries */, 32768) = 0
close(4)                                = 0
rmdir("./22/file0")                     = 0
getdents64(3, 0x55555753e620 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22")                           = 0
mkdir("./23", 0777)                     = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR)  = 3
ioctl(3, LOOP_CLR_FD)                   = -1 ENXIO (No such device or address)
close(3)                                = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555753d5d0) = 5183
./strace-static-x86_64: Process 5183 attached
[pid  5183] set_robust_list(0x55555753d5e0, 24) = 0
[pid  5183] chdir("./23")               = 0
[pid  5183] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5183] setpgid(0, 0)               = 0
[pid  5183] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5183] write(3, "1000", 4)         = 4
[pid  5183] close(3)                    = 0
[pid  5183] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5183] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5183] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc2da73f000
[pid  5183] mprotect(0x7fc2da740000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5183] clone(child_stack=0x7fc2da75f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5184], tls=0x7fc2da75f700, child_tidptr=0x7fc2da75f9d0) = 5184
[pid  5183] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5183] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5184 attached
 <unfinished ...>
[pid  5184] set_robust_list(0x7fc2da75f9e0, 24) = 0
[pid  5184] memfd_create("syzkaller", 0) = 3
[pid  5184] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fc2d233f000
[pid  5184] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304) = 4194304
[pid  5184] munmap(0x7fc2d233f000, 4194304) = 0
[pid  5184] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5184] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  5184] close(3)                    = 0
[pid  5184] mkdir("./file0", 0777)      = 0
[   82.952168][ T5184] loop0: detected capacity change from 0 to 8192
[   82.972875][ T5184] REISERFS warning:  read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025
[   82.985934][ T5184] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal
[   82.995450][ T5184] REISERFS (device loop0): using ordered data mode
[   83.001999][ T5184] reiserfs: using flush barriers
[   83.008134][ T5184] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30
[   83.025000][ T5184] REISERFS (device loop0): checking transaction log (loop0)
[pid  5184] mount("/dev/loop0", "./file0", "reiserfs", MS_NOEXEC|MS_I_VERSION, "") = 0
[pid  5184] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid  5184] chdir("./file0")            = 0
[pid  5184] ioctl(4, LOOP_CLR_FD)       = 0
[pid  5184] close(4)                    = 0
[pid  5184] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5184] futex(0x7fc2da8397a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5183] <... futex resumed>)        = 0
[pid  5183] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5184] <... futex resumed>)        = 0
[pid  5183] <... futex resumed>)        = 1
[pid  5184] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_LARGEFILE|O_NOATIME, 000 <unfinished ...>
[pid  5183] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5184] <... open resumed>)         = 4
[pid  5184] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5183] <... futex resumed>)        = 0
[pid  5184] ftruncate(4, 3608577 <unfinished ...>
[pid  5183] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5184] <... ftruncate resumed>)    = 0
[pid  5183] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5184] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5183] <... futex resumed>)        = 0
[pid  5184] openat(AT_FDCWD, ".log", O_WRONLY|O_CREAT|O_TRUNC, 000 <unfinished ...>
[pid  5183] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5184] <... openat resumed>)       = 5
[pid  5183] <... futex resumed>)        = 0
[pid  5184] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5183] futex(0x7fc2da8397bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5184] <... futex resumed>)        = 0
[pid  5183] <... futex resumed>)        = 0
[pid  5184] futex(0x7fc2da8397a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5183] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc2d271e000
[pid  5183] mprotect(0x7fc2d271f000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5183] clone(child_stack=0x7fc2d273e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5186], tls=0x7fc2d273e700, child_tidptr=0x7fc2d273e9d0) = 5186
[pid  5183] futex(0x7fc2da8397b8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5183] futex(0x7fc2da8397bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5186 attached
 <unfinished ...>
[pid  5186] set_robust_list(0x7fc2d273e9e0, 24) = 0
[pid  5186] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000) = 0
[pid  5186] futex(0x7fc2da8397bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5183] <... futex resumed>)        = 0
[pid  5183] exit_group(0 <unfinished ...>
[pid  5184] <... futex resumed>)        = ?
[pid  5183] <... exit_group resumed>)   = ?
[pid  5184] +++ exited with 0 +++
[pid  5186] <... futex resumed>)        = ?
[   83.080449][ T5184] REISERFS (device loop0): Using r5 hash to sort names
[   83.087727][ T5184] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage.
[pid  5186] +++ exited with 0 +++
[pid  5183] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5183, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./23", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./23", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x55555753e620 /* 4 entries */, 32768) = 112
umount2("./23/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./23/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./23/binderfs")                 = 0
umount2("./23/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./23/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./23/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./23/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./23/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555557546660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555557546660 /* 0 entries */, 32768) = 0
close(4)                                = 0
rmdir("./23/file0")                     = 0
getdents64(3, 0x55555753e620 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./23")                           = 0
mkdir("./24", 0777)                     = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR)  = 3
ioctl(3, LOOP_CLR_FD)                   = -1 ENXIO (No such device or address)
close(3)                                = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555753d5d0) = 5187
./strace-static-x86_64: Process 5187 attached
[pid  5187] set_robust_list(0x55555753d5e0, 24) = 0
[pid  5187] chdir("./24")               = 0
[pid  5187] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5187] setpgid(0, 0)               = 0
[pid  5187] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5187] write(3, "1000", 4)         = 4
[pid  5187] close(3)                    = 0
[pid  5187] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5187] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5187] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc2da73f000
[pid  5187] mprotect(0x7fc2da740000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5187] clone(child_stack=0x7fc2da75f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5188], tls=0x7fc2da75f700, child_tidptr=0x7fc2da75f9d0) = 5188
[pid  5187] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5187] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5188 attached
 <unfinished ...>
[pid  5188] set_robust_list(0x7fc2da75f9e0, 24) = 0
[pid  5188] memfd_create("syzkaller", 0) = 3
[pid  5188] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fc2d233f000
[pid  5188] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304) = 4194304
[pid  5188] munmap(0x7fc2d233f000, 4194304) = 0
[pid  5188] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5188] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  5188] close(3)                    = 0
[pid  5188] mkdir("./file0", 0777)      = 0
[   83.277227][ T5188] loop0: detected capacity change from 0 to 8192
[   83.288173][ T5188] REISERFS warning:  read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025
[   83.301472][ T5188] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal
[   83.311088][ T5188] REISERFS (device loop0): using ordered data mode
[   83.317839][ T5188] reiserfs: using flush barriers
[   83.323831][ T5188] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30
[   83.340529][ T5188] REISERFS (device loop0): checking transaction log (loop0)
[pid  5188] mount("/dev/loop0", "./file0", "reiserfs", MS_NOEXEC|MS_I_VERSION, "") = 0
[pid  5188] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid  5188] chdir("./file0")            = 0
[pid  5188] ioctl(4, LOOP_CLR_FD)       = 0
[pid  5188] close(4)                    = 0
[pid  5188] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5187] <... futex resumed>)        = 0
[pid  5188] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_LARGEFILE|O_NOATIME, 000 <unfinished ...>
[pid  5187] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5187] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5188] <... open resumed>)         = 4
[pid  5188] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5187] <... futex resumed>)        = 0
[pid  5187] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5187] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5188] ftruncate(4, 3608577)       = 0
[pid  5188] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5187] <... futex resumed>)        = 0
[pid  5187] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5187] futex(0x7fc2da8397bc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5187] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid  5188] openat(AT_FDCWD, ".log", O_WRONLY|O_CREAT|O_TRUNC, 000 <unfinished ...>
[pid  5187] <... mmap resumed>)         = 0x7fc2d271e000
[pid  5187] mprotect(0x7fc2d271f000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5187] clone(child_stack=0x7fc2d273e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid  5188] <... openat resumed>)       = 5
./strace-static-x86_64: Process 5190 attached
[pid  5188] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5187] <... clone resumed>, parent_tid=[5190], tls=0x7fc2d273e700, child_tidptr=0x7fc2d273e9d0) = 5190
[pid  5190] set_robust_list(0x7fc2d273e9e0, 24 <unfinished ...>
[pid  5188] <... futex resumed>)        = 0
[pid  5187] futex(0x7fc2da8397b8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5190] <... set_robust_list resumed>) = 0
[pid  5188] futex(0x7fc2da8397a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5187] <... futex resumed>)        = 0
[pid  5187] futex(0x7fc2da8397bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5190] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000) = 0
[pid  5190] futex(0x7fc2da8397bc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5187] <... futex resumed>)        = 0
[pid  5190] futex(0x7fc2da8397b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5187] exit_group(0 <unfinished ...>
[pid  5190] <... futex resumed>)        = ?
[pid  5188] <... futex resumed>)        = ?
[pid  5187] <... exit_group resumed>)   = ?
[pid  5190] +++ exited with 0 +++
[pid  5188] +++ exited with 0 +++
[pid  5187] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5187, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=13 /* 0.13 s */} ---
umount2("./24", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[   83.406620][ T5188] REISERFS (device loop0): Using r5 hash to sort names
[   83.413779][ T5188] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage.
openat(AT_FDCWD, "./24", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x55555753e620 /* 4 entries */, 32768) = 112
umount2("./24/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./24/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./24/binderfs")                 = 0
umount2("./24/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./24/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./24/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./24/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./24/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555557546660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555557546660 /* 0 entries */, 32768) = 0
close(4)                                = 0
rmdir("./24/file0")                     = 0
getdents64(3, 0x55555753e620 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./24")                           = 0
mkdir("./25", 0777)                     = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR)  = 3
ioctl(3, LOOP_CLR_FD)                   = -1 ENXIO (No such device or address)
close(3)                                = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555753d5d0) = 5191
./strace-static-x86_64: Process 5191 attached
[pid  5191] set_robust_list(0x55555753d5e0, 24) = 0
[pid  5191] chdir("./25")               = 0
[pid  5191] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5191] setpgid(0, 0)               = 0
[pid  5191] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5191] write(3, "1000", 4)         = 4
[pid  5191] close(3)                    = 0
[pid  5191] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5191] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5191] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc2da73f000
[pid  5191] mprotect(0x7fc2da740000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5191] clone(child_stack=0x7fc2da75f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5192], tls=0x7fc2da75f700, child_tidptr=0x7fc2da75f9d0) = 5192
[pid  5191] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5191] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5192 attached
 <unfinished ...>
[pid  5192] set_robust_list(0x7fc2da75f9e0, 24) = 0
[pid  5192] memfd_create("syzkaller", 0) = 3
[pid  5192] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fc2d233f000
[pid  5192] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304) = 4194304
[pid  5192] munmap(0x7fc2d233f000, 4194304) = 0
[pid  5192] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5192] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  5192] close(3)                    = 0
[pid  5192] mkdir("./file0", 0777)      = 0
[   83.605920][ T5192] loop0: detected capacity change from 0 to 8192
[   83.618557][ T5192] REISERFS warning:  read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025
[   83.631611][ T5192] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal
[   83.641763][ T5192] REISERFS (device loop0): using ordered data mode
[   83.648317][ T5192] reiserfs: using flush barriers
[   83.654311][ T5192] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30
[   83.670862][ T5192] REISERFS (device loop0): checking transaction log (loop0)
[pid  5192] mount("/dev/loop0", "./file0", "reiserfs", MS_NOEXEC|MS_I_VERSION, "") = 0
[pid  5192] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid  5192] chdir("./file0")            = 0
[pid  5192] ioctl(4, LOOP_CLR_FD)       = 0
[pid  5192] close(4)                    = 0
[pid  5192] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5191] <... futex resumed>)        = 0
[pid  5192] <... futex resumed>)        = 1
[pid  5191] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5191] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5192] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_LARGEFILE|O_NOATIME, 000) = 4
[pid  5192] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5191] <... futex resumed>)        = 0
[pid  5192] futex(0x7fc2da8397a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5191] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5191] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5192] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5192] ftruncate(4, 3608577)       = 0
[pid  5192] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5191] <... futex resumed>)        = 0
[pid  5191] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5191] futex(0x7fc2da8397bc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5191] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc2d271e000
[pid  5191] mprotect(0x7fc2d271f000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5191] clone(child_stack=0x7fc2d273e3f0, 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 5194 attached
, parent_tid=[5194], tls=0x7fc2d273e700, child_tidptr=0x7fc2d273e9d0) = 5194
[pid  5194] set_robust_list(0x7fc2d273e9e0, 24 <unfinished ...>
[pid  5191] futex(0x7fc2da8397b8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5194] <... set_robust_list resumed>) = 0
[pid  5191] <... futex resumed>)        = 0
[pid  5194] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 <unfinished ...>
[pid  5191] futex(0x7fc2da8397bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5192] openat(AT_FDCWD, ".log", O_WRONLY|O_CREAT|O_TRUNC, 000) = 5
[pid  5192] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5192] futex(0x7fc2da8397a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5194] <... mknod resumed>)        = 0
[pid  5194] futex(0x7fc2da8397bc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5191] <... futex resumed>)        = 0
[pid  5194] futex(0x7fc2da8397b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5191] exit_group(0)               = ?
[pid  5194] <... futex resumed>)        = ?
[pid  5192] <... futex resumed>)        = ?
[pid  5192] +++ exited with 0 +++
[pid  5194] +++ exited with 0 +++
[pid  5191] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5191, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./25", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./25", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x55555753e620 /* 4 entries */, 32768) = 112
umount2("./25/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./25/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./25/binderfs")                 = 0
[   83.729173][ T5192] REISERFS (device loop0): Using r5 hash to sort names
[   83.736314][ T5192] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage.
umount2("./25/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./25/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./25/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./25/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./25/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555557546660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555557546660 /* 0 entries */, 32768) = 0
close(4)                                = 0
rmdir("./25/file0")                     = 0
getdents64(3, 0x55555753e620 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./25")                           = 0
mkdir("./26", 0777)                     = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR)  = 3
ioctl(3, LOOP_CLR_FD)                   = -1 ENXIO (No such device or address)
close(3)                                = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555753d5d0) = 5195
./strace-static-x86_64: Process 5195 attached
[pid  5195] set_robust_list(0x55555753d5e0, 24) = 0
[pid  5195] chdir("./26")               = 0
[pid  5195] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5195] setpgid(0, 0)               = 0
[pid  5195] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5195] write(3, "1000", 4)         = 4
[pid  5195] close(3)                    = 0
[pid  5195] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5195] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5195] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc2da73f000
[pid  5195] mprotect(0x7fc2da740000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5195] clone(child_stack=0x7fc2da75f3f0, 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 5196 attached
, parent_tid=[5196], tls=0x7fc2da75f700, child_tidptr=0x7fc2da75f9d0) = 5196
[pid  5195] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5195] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid  5196] set_robust_list(0x7fc2da75f9e0, 24) = 0
[pid  5196] memfd_create("syzkaller", 0) = 3
[pid  5196] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fc2d233f000
[pid  5196] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304) = 4194304
[pid  5196] munmap(0x7fc2d233f000, 4194304) = 0
[pid  5196] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5196] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  5196] close(3)                    = 0
[pid  5196] mkdir("./file0", 0777)      = 0
[   83.931724][ T5196] loop0: detected capacity change from 0 to 8192
[   83.941454][ T5196] REISERFS warning:  read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025
[   83.954582][ T5196] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal
[   83.963799][ T5196] REISERFS (device loop0): using ordered data mode
[   83.970449][ T5196] reiserfs: using flush barriers
[   83.976531][ T5196] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30
[   83.993104][ T5196] REISERFS (device loop0): checking transaction log (loop0)
[pid  5196] mount("/dev/loop0", "./file0", "reiserfs", MS_NOEXEC|MS_I_VERSION, "") = 0
[pid  5196] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid  5196] chdir("./file0")            = 0
[pid  5196] ioctl(4, LOOP_CLR_FD)       = 0
[pid  5196] close(4)                    = 0
[pid  5196] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5196] futex(0x7fc2da8397a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5195] <... futex resumed>)        = 0
[pid  5195] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5195] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5196] <... futex resumed>)        = 0
[pid  5196] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_LARGEFILE|O_NOATIME, 000) = 4
[pid  5196] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5195] <... futex resumed>)        = 0
[pid  5196] futex(0x7fc2da8397a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5195] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5196] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5195] <... futex resumed>)        = 0
[pid  5196] ftruncate(4, 3608577)       = 0
[pid  5196] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5195] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid  5195] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5195] futex(0x7fc2da8397bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5196] openat(AT_FDCWD, ".log", O_WRONLY|O_CREAT|O_TRUNC, 000 <unfinished ...>
[pid  5195] <... futex resumed>)        = 0
[pid  5195] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc2d271e000
[pid  5195] mprotect(0x7fc2d271f000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5195] clone(child_stack=0x7fc2d273e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5198], tls=0x7fc2d273e700, child_tidptr=0x7fc2d273e9d0) = 5198
[pid  5195] futex(0x7fc2da8397b8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5195] futex(0x7fc2da8397bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5198 attached
 <unfinished ...>
[pid  5198] set_robust_list(0x7fc2d273e9e0, 24) = 0
[pid  5198] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 <unfinished ...>
[pid  5196] <... openat resumed>)       = 5
[pid  5198] <... mknod resumed>)        = 0
[pid  5198] futex(0x7fc2da8397bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5195] <... futex resumed>)        = 0
[pid  5198] <... futex resumed>)        = 1
[pid  5198] futex(0x7fc2da8397b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5196] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5195] exit_group(0)               = ?
[pid  5198] <... futex resumed>)        = ?
[pid  5198] +++ exited with 0 +++
[pid  5196] <... futex resumed>)        = ?
[pid  5196] +++ exited with 0 +++
[pid  5195] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5195, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./26", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./26", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x55555753e620 /* 4 entries */, 32768) = 112
umount2("./26/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./26/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./26/binderfs")                 = 0
[   84.052060][ T5196] REISERFS (device loop0): Using r5 hash to sort names
[   84.059828][ T5196] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage.
umount2("./26/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./26/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./26/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./26/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./26/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555557546660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555557546660 /* 0 entries */, 32768) = 0
close(4)                                = 0
rmdir("./26/file0")                     = 0
getdents64(3, 0x55555753e620 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./26")                           = 0
mkdir("./27", 0777)                     = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR)  = 3
ioctl(3, LOOP_CLR_FD)                   = -1 ENXIO (No such device or address)
close(3)                                = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555753d5d0) = 5199
./strace-static-x86_64: Process 5199 attached
[pid  5199] set_robust_list(0x55555753d5e0, 24) = 0
[pid  5199] chdir("./27")               = 0
[pid  5199] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5199] setpgid(0, 0)               = 0
[pid  5199] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5199] write(3, "1000", 4)         = 4
[pid  5199] close(3)                    = 0
[pid  5199] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5199] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5199] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc2da73f000
[pid  5199] mprotect(0x7fc2da740000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5199] clone(child_stack=0x7fc2da75f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5200], tls=0x7fc2da75f700, child_tidptr=0x7fc2da75f9d0) = 5200
[pid  5199] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5199] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5200 attached
 <unfinished ...>
[pid  5200] set_robust_list(0x7fc2da75f9e0, 24) = 0
[pid  5200] memfd_create("syzkaller", 0) = 3
[pid  5200] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fc2d233f000
[pid  5200] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304) = 4194304
[pid  5200] munmap(0x7fc2d233f000, 4194304) = 0
[pid  5200] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5200] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  5200] close(3)                    = 0
[pid  5200] mkdir("./file0", 0777)      = 0
[   84.245836][ T5200] loop0: detected capacity change from 0 to 8192
[   84.257620][ T5200] REISERFS warning:  read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025
[   84.270749][ T5200] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal
[   84.280128][ T5200] REISERFS (device loop0): using ordered data mode
[   84.286766][ T5200] reiserfs: using flush barriers
[   84.292658][ T5200] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30
[   84.309236][ T5200] REISERFS (device loop0): checking transaction log (loop0)
[pid  5200] mount("/dev/loop0", "./file0", "reiserfs", MS_NOEXEC|MS_I_VERSION, "") = 0
[pid  5200] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid  5200] chdir("./file0")            = 0
[pid  5200] ioctl(4, LOOP_CLR_FD)       = 0
[pid  5200] close(4)                    = 0
[pid  5200] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5199] <... futex resumed>)        = 0
[pid  5199] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5199] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5200] <... futex resumed>)        = 1
[pid  5200] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_LARGEFILE|O_NOATIME, 000) = 4
[pid  5200] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5199] <... futex resumed>)        = 0
[pid  5199] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5199] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5200] <... futex resumed>)        = 1
[pid  5200] ftruncate(4, 3608577)       = 0
[pid  5200] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5199] <... futex resumed>)        = 0
[pid  5199] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5199] futex(0x7fc2da8397bc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5199] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc2d271e000
[pid  5199] mprotect(0x7fc2d271f000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5199] clone(child_stack=0x7fc2d273e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5202], tls=0x7fc2d273e700, child_tidptr=0x7fc2d273e9d0) = 5202
[pid  5199] futex(0x7fc2da8397b8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5199] futex(0x7fc2da8397bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5200] <... futex resumed>)        = 1
[pid  5200] openat(AT_FDCWD, ".log", O_WRONLY|O_CREAT|O_TRUNC, 000) = 5
[pid  5200] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5200] futex(0x7fc2da8397a8, FUTEX_WAIT_PRIVATE, 0, NULL./strace-static-x86_64: Process 5202 attached
 <unfinished ...>
[pid  5202] set_robust_list(0x7fc2d273e9e0, 24) = 0
[pid  5202] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000) = 0
[pid  5202] futex(0x7fc2da8397bc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5199] <... futex resumed>)        = 0
[pid  5202] futex(0x7fc2da8397b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5199] exit_group(0 <unfinished ...>
[pid  5200] <... futex resumed>)        = ?
[pid  5199] <... exit_group resumed>)   = ?
[pid  5200] +++ exited with 0 +++
[pid  5202] <... futex resumed>)        = ?
[pid  5202] +++ exited with 0 +++
[pid  5199] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5199, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./27", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./27", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x55555753e620 /* 4 entries */, 32768) = 112
umount2("./27/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./27/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./27/binderfs")                 = 0
[   84.362187][ T5200] REISERFS (device loop0): Using r5 hash to sort names
[   84.369647][ T5200] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage.
umount2("./27/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./27/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./27/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./27/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./27/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555557546660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555557546660 /* 0 entries */, 32768) = 0
close(4)                                = 0
rmdir("./27/file0")                     = 0
getdents64(3, 0x55555753e620 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./27")                           = 0
mkdir("./28", 0777)                     = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR)  = 3
ioctl(3, LOOP_CLR_FD)                   = -1 ENXIO (No such device or address)
close(3)                                = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555753d5d0) = 5203
./strace-static-x86_64: Process 5203 attached
[pid  5203] set_robust_list(0x55555753d5e0, 24) = 0
[pid  5203] chdir("./28")               = 0
[pid  5203] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5203] setpgid(0, 0)               = 0
[pid  5203] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5203] write(3, "1000", 4)         = 4
[pid  5203] close(3)                    = 0
[pid  5203] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5203] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5203] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc2da73f000
[pid  5203] mprotect(0x7fc2da740000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5203] clone(child_stack=0x7fc2da75f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5204], tls=0x7fc2da75f700, child_tidptr=0x7fc2da75f9d0) = 5204
[pid  5203] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5203] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5204 attached
 <unfinished ...>
[pid  5204] set_robust_list(0x7fc2da75f9e0, 24) = 0
[pid  5204] memfd_create("syzkaller", 0) = 3
[pid  5204] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fc2d233f000
[pid  5204] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304) = 4194304
[pid  5204] munmap(0x7fc2d233f000, 4194304) = 0
[pid  5204] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5204] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  5204] close(3)                    = 0
[pid  5204] mkdir("./file0", 0777)      = 0
[   84.557517][ T5204] loop0: detected capacity change from 0 to 8192
[   84.567196][ T5204] REISERFS warning:  read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025
[   84.580359][ T5204] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal
[   84.589852][ T5204] REISERFS (device loop0): using ordered data mode
[   84.596475][ T5204] reiserfs: using flush barriers
[   84.602394][ T5204] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30
[   84.619204][ T5204] REISERFS (device loop0): checking transaction log (loop0)
[pid  5204] mount("/dev/loop0", "./file0", "reiserfs", MS_NOEXEC|MS_I_VERSION, "") = 0
[pid  5204] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid  5204] chdir("./file0")            = 0
[pid  5204] ioctl(4, LOOP_CLR_FD)       = 0
[pid  5204] close(4)                    = 0
[pid  5204] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5203] <... futex resumed>)        = 0
[pid  5204] <... futex resumed>)        = 1
[pid  5203] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5204] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_LARGEFILE|O_NOATIME, 000 <unfinished ...>
[pid  5203] <... futex resumed>)        = 0
[pid  5204] <... open resumed>)         = 4
[pid  5203] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5204] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5203] <... futex resumed>)        = 0
[pid  5203] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5204] <... futex resumed>)        = 1
[pid  5203] <... futex resumed>)        = 0
[pid  5204] ftruncate(4, 3608577 <unfinished ...>
[pid  5203] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5204] <... ftruncate resumed>)    = 0
[pid  5204] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5203] <... futex resumed>)        = 0
[pid  5203] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5204] <... futex resumed>)        = 1
[pid  5203] futex(0x7fc2da8397bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5204] openat(AT_FDCWD, ".log", O_WRONLY|O_CREAT|O_TRUNC, 000 <unfinished ...>
[pid  5203] <... futex resumed>)        = 0
[pid  5204] <... openat resumed>)       = 5
[pid  5203] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid  5204] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5203] <... mmap resumed>)         = 0x7fc2d271e000
[pid  5204] <... futex resumed>)        = 0
[pid  5203] mprotect(0x7fc2d271f000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid  5204] futex(0x7fc2da8397a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5203] <... mprotect resumed>)     = 0
[pid  5203] clone(child_stack=0x7fc2d273e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5206], tls=0x7fc2d273e700, child_tidptr=0x7fc2d273e9d0) = 5206
[pid  5203] futex(0x7fc2da8397b8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5203] futex(0x7fc2da8397bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5206 attached
 <unfinished ...>
[pid  5206] set_robust_list(0x7fc2d273e9e0, 24) = 0
[pid  5206] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000) = 0
[pid  5206] futex(0x7fc2da8397bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5203] <... futex resumed>)        = 0
[pid  5203] exit_group(0 <unfinished ...>
[pid  5204] <... futex resumed>)        = ?
[pid  5203] <... exit_group resumed>)   = ?
[pid  5204] +++ exited with 0 +++
[pid  5206] <... futex resumed>)        = ?
[pid  5206] +++ exited with 0 +++
[pid  5203] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5203, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./28", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./28", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x55555753e620 /* 4 entries */, 32768) = 112
umount2("./28/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./28/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./28/binderfs")                 = 0
[   84.678054][ T5204] REISERFS (device loop0): Using r5 hash to sort names
[   84.685284][ T5204] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage.
umount2("./28/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./28/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./28/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./28/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./28/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555557546660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555557546660 /* 0 entries */, 32768) = 0
close(4)                                = 0
rmdir("./28/file0")                     = 0
getdents64(3, 0x55555753e620 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./28")                           = 0
mkdir("./29", 0777)                     = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR)  = 3
ioctl(3, LOOP_CLR_FD)                   = -1 ENXIO (No such device or address)
close(3)                                = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555753d5d0) = 5207
./strace-static-x86_64: Process 5207 attached
[pid  5207] set_robust_list(0x55555753d5e0, 24) = 0
[pid  5207] chdir("./29")               = 0
[pid  5207] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5207] setpgid(0, 0)               = 0
[pid  5207] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5207] write(3, "1000", 4)         = 4
[pid  5207] close(3)                    = 0
[pid  5207] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5207] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5207] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc2da73f000
[pid  5207] mprotect(0x7fc2da740000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5207] clone(child_stack=0x7fc2da75f3f0, 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 5208 attached
 <unfinished ...>
[pid  5208] set_robust_list(0x7fc2da75f9e0, 24 <unfinished ...>
[pid  5207] <... clone resumed>, parent_tid=[5208], tls=0x7fc2da75f700, child_tidptr=0x7fc2da75f9d0) = 5208
[pid  5208] <... set_robust_list resumed>) = 0
[pid  5207] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5207] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid  5208] memfd_create("syzkaller", 0) = 3
[pid  5208] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fc2d233f000
[pid  5208] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304) = 4194304
[pid  5208] munmap(0x7fc2d233f000, 4194304) = 0
[pid  5208] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5208] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  5208] close(3)                    = 0
[pid  5208] mkdir("./file0", 0777)      = 0
[   84.871433][ T5208] loop0: detected capacity change from 0 to 8192
[   84.882756][ T5208] REISERFS warning:  read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025
[   84.896105][ T5208] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal
[   84.905593][ T5208] REISERFS (device loop0): using ordered data mode
[   84.912129][ T5208] reiserfs: using flush barriers
[   84.918474][ T5208] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30
[   84.935050][ T5208] REISERFS (device loop0): checking transaction log (loop0)
[pid  5208] mount("/dev/loop0", "./file0", "reiserfs", MS_NOEXEC|MS_I_VERSION, "") = 0
[pid  5208] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid  5208] chdir("./file0")            = 0
[pid  5208] ioctl(4, LOOP_CLR_FD)       = 0
[pid  5208] close(4)                    = 0
[pid  5208] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5207] <... futex resumed>)        = 0
[pid  5208] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_LARGEFILE|O_NOATIME, 000 <unfinished ...>
[pid  5207] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5208] <... open resumed>)         = 4
[pid  5207] <... futex resumed>)        = 0
[pid  5207] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5208] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5207] <... futex resumed>)        = 0
[pid  5208] ftruncate(4, 3608577 <unfinished ...>
[pid  5207] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5207] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5208] <... ftruncate resumed>)    = 0
[pid  5208] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5207] <... futex resumed>)        = 0
[pid  5208] futex(0x7fc2da8397a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5207] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5208] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5207] <... futex resumed>)        = 0
[pid  5208] openat(AT_FDCWD, ".log", O_WRONLY|O_CREAT|O_TRUNC, 000 <unfinished ...>
[pid  5207] futex(0x7fc2da8397bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5208] <... openat resumed>)       = 5
[pid  5207] <... futex resumed>)        = 0
[pid  5208] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5207] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid  5208] <... futex resumed>)        = 0
[pid  5207] <... mmap resumed>)         = 0x7fc2d271e000
[pid  5208] futex(0x7fc2da8397a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5207] mprotect(0x7fc2d271f000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5207] clone(child_stack=0x7fc2d273e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5210], tls=0x7fc2d273e700, child_tidptr=0x7fc2d273e9d0) = 5210
[pid  5207] futex(0x7fc2da8397b8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5207] futex(0x7fc2da8397bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5210 attached
 <unfinished ...>
[pid  5210] set_robust_list(0x7fc2d273e9e0, 24) = 0
[pid  5210] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000) = 0
[pid  5210] futex(0x7fc2da8397bc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5207] <... futex resumed>)        = 0
[pid  5207] exit_group(0 <unfinished ...>
[pid  5208] <... futex resumed>)        = ?
[pid  5207] <... exit_group resumed>)   = ?
[pid  5208] +++ exited with 0 +++
[pid  5210] +++ exited with 0 +++
[pid  5207] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5207, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} ---
umount2("./29", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./29", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[   84.991372][ T5208] REISERFS (device loop0): Using r5 hash to sort names
[   84.998527][ T5208] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage.
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x55555753e620 /* 4 entries */, 32768) = 112
umount2("./29/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./29/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./29/binderfs")                 = 0
umount2("./29/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./29/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./29/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./29/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./29/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555557546660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555557546660 /* 0 entries */, 32768) = 0
close(4)                                = 0
rmdir("./29/file0")                     = 0
getdents64(3, 0x55555753e620 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./29")                           = 0
mkdir("./30", 0777)                     = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR)  = 3
ioctl(3, LOOP_CLR_FD)                   = -1 ENXIO (No such device or address)
close(3)                                = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555753d5d0) = 5211
./strace-static-x86_64: Process 5211 attached
[pid  5211] set_robust_list(0x55555753d5e0, 24) = 0
[pid  5211] chdir("./30")               = 0
[pid  5211] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5211] setpgid(0, 0)               = 0
[pid  5211] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5211] write(3, "1000", 4)         = 4
[pid  5211] close(3)                    = 0
[pid  5211] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5211] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5211] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc2da73f000
[pid  5211] mprotect(0x7fc2da740000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5211] clone(child_stack=0x7fc2da75f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5212], tls=0x7fc2da75f700, child_tidptr=0x7fc2da75f9d0) = 5212
[pid  5211] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5211] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5212 attached
 <unfinished ...>
[pid  5212] set_robust_list(0x7fc2da75f9e0, 24) = 0
[pid  5212] memfd_create("syzkaller", 0) = 3
[pid  5212] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fc2d233f000
[pid  5212] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304) = 4194304
[pid  5212] munmap(0x7fc2d233f000, 4194304) = 0
[pid  5212] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5212] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  5212] close(3)                    = 0
[pid  5212] mkdir("./file0", 0777)      = 0
[   85.187374][ T5212] loop0: detected capacity change from 0 to 8192
[   85.200556][ T5212] REISERFS warning:  read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025
[   85.213643][ T5212] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal
[   85.223237][ T5212] REISERFS (device loop0): using ordered data mode
[   85.229899][ T5212] reiserfs: using flush barriers
[   85.236207][ T5212] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30
[   85.252745][ T5212] REISERFS (device loop0): checking transaction log (loop0)
[pid  5212] mount("/dev/loop0", "./file0", "reiserfs", MS_NOEXEC|MS_I_VERSION, "") = 0
[pid  5212] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid  5212] chdir("./file0")            = 0
[pid  5212] ioctl(4, LOOP_CLR_FD)       = 0
[pid  5212] close(4)                    = 0
[pid  5212] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5211] <... futex resumed>)        = 0
[pid  5212] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_LARGEFILE|O_NOATIME, 000 <unfinished ...>
[pid  5211] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5212] <... open resumed>)         = 4
[pid  5211] <... futex resumed>)        = 0
[pid  5212] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5211] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5212] <... futex resumed>)        = 0
[pid  5211] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5212] ftruncate(4, 3608577 <unfinished ...>
[pid  5211] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5212] <... ftruncate resumed>)    = 0
[pid  5211] <... futex resumed>)        = 0
[pid  5212] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5211] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5212] <... futex resumed>)        = 0
[pid  5211] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5212] openat(AT_FDCWD, ".log", O_WRONLY|O_CREAT|O_TRUNC, 000 <unfinished ...>
[pid  5211] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5212] <... openat resumed>)       = 5
[pid  5211] <... futex resumed>)        = 0
[pid  5211] futex(0x7fc2da8397bc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5211] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid  5212] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5211] <... mmap resumed>)         = 0x7fc2d271e000
[pid  5212] <... futex resumed>)        = 0
[pid  5211] mprotect(0x7fc2d271f000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid  5212] futex(0x7fc2da8397a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5211] <... mprotect resumed>)     = 0
[pid  5211] clone(child_stack=0x7fc2d273e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5214], tls=0x7fc2d273e700, child_tidptr=0x7fc2d273e9d0) = 5214
[pid  5211] futex(0x7fc2da8397b8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5211] futex(0x7fc2da8397bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5214 attached
 <unfinished ...>
[pid  5214] set_robust_list(0x7fc2d273e9e0, 24) = 0
[pid  5214] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000) = 0
[pid  5214] futex(0x7fc2da8397bc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5211] <... futex resumed>)        = 0
[pid  5214] futex(0x7fc2da8397b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5211] exit_group(0 <unfinished ...>
[pid  5214] <... futex resumed>)        = ?
[pid  5212] <... futex resumed>)        = ?
[pid  5211] <... exit_group resumed>)   = ?
[pid  5214] +++ exited with 0 +++
[pid  5212] +++ exited with 0 +++
[pid  5211] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5211, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} ---
umount2("./30", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[   85.309215][ T5212] REISERFS (device loop0): Using r5 hash to sort names
[   85.316394][ T5212] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage.
openat(AT_FDCWD, "./30", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x55555753e620 /* 4 entries */, 32768) = 112
umount2("./30/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./30/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./30/binderfs")                 = 0
umount2("./30/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./30/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./30/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./30/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./30/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555557546660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555557546660 /* 0 entries */, 32768) = 0
close(4)                                = 0
rmdir("./30/file0")                     = 0
getdents64(3, 0x55555753e620 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./30")                           = 0
mkdir("./31", 0777)                     = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR)  = 3
ioctl(3, LOOP_CLR_FD)                   = -1 ENXIO (No such device or address)
close(3)                                = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555753d5d0) = 5215
./strace-static-x86_64: Process 5215 attached
[pid  5215] set_robust_list(0x55555753d5e0, 24) = 0
[pid  5215] chdir("./31")               = 0
[pid  5215] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5215] setpgid(0, 0)               = 0
[pid  5215] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5215] write(3, "1000", 4)         = 4
[pid  5215] close(3)                    = 0
[pid  5215] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5215] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5215] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc2da73f000
[pid  5215] mprotect(0x7fc2da740000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5215] clone(child_stack=0x7fc2da75f3f0, 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 5216 attached
, parent_tid=[5216], tls=0x7fc2da75f700, child_tidptr=0x7fc2da75f9d0) = 5216
[pid  5216] set_robust_list(0x7fc2da75f9e0, 24) = 0
[pid  5216] futex(0x7fc2da8397a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5215] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5216] <... futex resumed>)        = 0
[pid  5215] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid  5216] memfd_create("syzkaller", 0) = 3
[pid  5216] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fc2d233f000
[pid  5216] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304) = 4194304
[pid  5216] munmap(0x7fc2d233f000, 4194304) = 0
[pid  5216] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5216] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  5216] close(3)                    = 0
[pid  5216] mkdir("./file0", 0777)      = 0
[   85.553174][ T5216] loop0: detected capacity change from 0 to 8192
[   85.565129][ T5216] REISERFS warning:  read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025
[   85.578197][ T5216] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal
[   85.587541][ T5216] REISERFS (device loop0): using ordered data mode
[   85.594091][ T5216] reiserfs: using flush barriers
[   85.600328][ T5216] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30
[   85.616871][ T5216] REISERFS (device loop0): checking transaction log (loop0)
[pid  5216] mount("/dev/loop0", "./file0", "reiserfs", MS_NOEXEC|MS_I_VERSION, "") = 0
[pid  5216] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid  5216] chdir("./file0")            = 0
[pid  5216] ioctl(4, LOOP_CLR_FD)       = 0
[pid  5216] close(4)                    = 0
[pid  5216] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5215] <... futex resumed>)        = 0
[pid  5216] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_LARGEFILE|O_NOATIME, 000 <unfinished ...>
[pid  5215] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5216] <... open resumed>)         = 4
[pid  5215] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5216] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5215] <... futex resumed>)        = 0
[pid  5216] ftruncate(4, 3608577 <unfinished ...>
[pid  5215] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5215] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5216] <... ftruncate resumed>)    = 0
[pid  5216] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5215] <... futex resumed>)        = 0
[pid  5216] <... futex resumed>)        = 1
[pid  5215] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5216] openat(AT_FDCWD, ".log", O_WRONLY|O_CREAT|O_TRUNC, 000 <unfinished ...>
[pid  5215] <... futex resumed>)        = 0
[pid  5216] <... openat resumed>)       = 5
[pid  5215] futex(0x7fc2da8397bc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5216] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5215] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid  5216] <... futex resumed>)        = 0
[pid  5216] futex(0x7fc2da8397a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5215] <... mmap resumed>)         = 0x7fc2d271e000
[pid  5215] mprotect(0x7fc2d271f000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5215] clone(child_stack=0x7fc2d273e3f0, 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 5218 attached
 <unfinished ...>
[pid  5218] set_robust_list(0x7fc2d273e9e0, 24 <unfinished ...>
[pid  5215] <... clone resumed>, parent_tid=[5218], tls=0x7fc2d273e700, child_tidptr=0x7fc2d273e9d0) = 5218
[pid  5218] <... set_robust_list resumed>) = 0
[pid  5215] futex(0x7fc2da8397b8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5218] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 <unfinished ...>
[pid  5215] <... futex resumed>)        = 0
[pid  5215] futex(0x7fc2da8397bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5218] <... mknod resumed>)        = 0
[pid  5218] futex(0x7fc2da8397bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5215] <... futex resumed>)        = 0
[pid  5215] exit_group(0 <unfinished ...>
[pid  5216] <... futex resumed>)        = ?
[pid  5215] <... exit_group resumed>)   = ?
[pid  5216] +++ exited with 0 +++
[pid  5218] <... futex resumed>)        = ?
[pid  5218] +++ exited with 0 +++
[pid  5215] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5215, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
umount2("./31", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./31", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[   85.673775][ T5216] REISERFS (device loop0): Using r5 hash to sort names
[   85.681091][ T5216] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage.
getdents64(3, 0x55555753e620 /* 4 entries */, 32768) = 112
umount2("./31/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./31/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./31/binderfs")                 = 0
umount2("./31/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./31/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./31/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./31/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./31/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555557546660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555557546660 /* 0 entries */, 32768) = 0
close(4)                                = 0
rmdir("./31/file0")                     = 0
getdents64(3, 0x55555753e620 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./31")                           = 0
mkdir("./32", 0777)                     = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR)  = 3
ioctl(3, LOOP_CLR_FD)                   = -1 ENXIO (No such device or address)
close(3)                                = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555753d5d0) = 5219
./strace-static-x86_64: Process 5219 attached
[pid  5219] set_robust_list(0x55555753d5e0, 24) = 0
[pid  5219] chdir("./32")               = 0
[pid  5219] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5219] setpgid(0, 0)               = 0
[pid  5219] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5219] write(3, "1000", 4)         = 4
[pid  5219] close(3)                    = 0
[pid  5219] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5219] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5219] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc2da73f000
[pid  5219] mprotect(0x7fc2da740000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5219] clone(child_stack=0x7fc2da75f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5220], tls=0x7fc2da75f700, child_tidptr=0x7fc2da75f9d0) = 5220
[pid  5219] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5219] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5220 attached
 <unfinished ...>
[pid  5220] set_robust_list(0x7fc2da75f9e0, 24) = 0
[pid  5220] memfd_create("syzkaller", 0) = 3
[pid  5220] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fc2d233f000
[pid  5220] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304) = 4194304
[pid  5220] munmap(0x7fc2d233f000, 4194304) = 0
[pid  5220] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5220] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  5220] close(3)                    = 0
[pid  5220] mkdir("./file0", 0777)      = 0
[   85.885403][ T5220] loop0: detected capacity change from 0 to 8192
[   85.896679][ T5220] REISERFS warning:  read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025
[   85.909748][ T5220] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal
[   85.919126][ T5220] REISERFS (device loop0): using ordered data mode
[   85.925788][ T5220] reiserfs: using flush barriers
[   85.931816][ T5220] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30
[   85.948405][ T5220] REISERFS (device loop0): checking transaction log (loop0)
[pid  5220] mount("/dev/loop0", "./file0", "reiserfs", MS_NOEXEC|MS_I_VERSION, "") = 0
[pid  5220] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid  5220] chdir("./file0")            = 0
[pid  5220] ioctl(4, LOOP_CLR_FD)       = 0
[pid  5220] close(4)                    = 0
[pid  5220] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5219] <... futex resumed>)        = 0
[pid  5220] futex(0x7fc2da8397a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5219] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5220] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5219] <... futex resumed>)        = 0
[pid  5220] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_LARGEFILE|O_NOATIME, 000 <unfinished ...>
[pid  5219] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5220] <... open resumed>)         = 4
[pid  5220] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5219] <... futex resumed>)        = 0
[pid  5220] ftruncate(4, 3608577 <unfinished ...>
[pid  5219] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5220] <... ftruncate resumed>)    = 0
[pid  5219] <... futex resumed>)        = 0
[pid  5220] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5219] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5220] <... futex resumed>)        = 0
[pid  5219] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5220] openat(AT_FDCWD, ".log", O_WRONLY|O_CREAT|O_TRUNC, 000 <unfinished ...>
[pid  5219] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5220] <... openat resumed>)       = 5
[pid  5219] <... futex resumed>)        = 0
[pid  5220] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5219] futex(0x7fc2da8397bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5220] <... futex resumed>)        = 0
[pid  5219] <... futex resumed>)        = 0
[pid  5220] futex(0x7fc2da8397a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5219] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc2d271e000
[pid  5219] mprotect(0x7fc2d271f000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5219] clone(child_stack=0x7fc2d273e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5222], tls=0x7fc2d273e700, child_tidptr=0x7fc2d273e9d0) = 5222
[pid  5219] futex(0x7fc2da8397b8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5219] futex(0x7fc2da8397bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5222 attached
 <unfinished ...>
[pid  5222] set_robust_list(0x7fc2d273e9e0, 24) = 0
[pid  5222] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000) = 0
[pid  5222] futex(0x7fc2da8397bc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5219] <... futex resumed>)        = 0
[pid  5222] futex(0x7fc2da8397b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5219] exit_group(0 <unfinished ...>
[pid  5222] <... futex resumed>)        = ?
[pid  5220] <... futex resumed>)        = ?
[pid  5219] <... exit_group resumed>)   = ?
[pid  5220] +++ exited with 0 +++
[pid  5222] +++ exited with 0 +++
[pid  5219] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5219, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./32", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./32", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x55555753e620 /* 4 entries */, 32768) = 112
umount2("./32/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./32/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./32/binderfs")                 = 0
[   86.008227][ T5220] REISERFS (device loop0): Using r5 hash to sort names
[   86.015392][ T5220] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage.
umount2("./32/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./32/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./32/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./32/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./32/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555557546660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555557546660 /* 0 entries */, 32768) = 0
close(4)                                = 0
rmdir("./32/file0")                     = 0
getdents64(3, 0x55555753e620 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./32")                           = 0
mkdir("./33", 0777)                     = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR)  = 3
ioctl(3, LOOP_CLR_FD)                   = -1 ENXIO (No such device or address)
close(3)                                = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555753d5d0) = 5223
./strace-static-x86_64: Process 5223 attached
[pid  5223] set_robust_list(0x55555753d5e0, 24) = 0
[pid  5223] chdir("./33")               = 0
[pid  5223] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5223] setpgid(0, 0)               = 0
[pid  5223] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5223] write(3, "1000", 4)         = 4
[pid  5223] close(3)                    = 0
[pid  5223] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5223] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5223] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc2da73f000
[pid  5223] mprotect(0x7fc2da740000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5223] clone(child_stack=0x7fc2da75f3f0, 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 5224 attached
, parent_tid=[5224], tls=0x7fc2da75f700, child_tidptr=0x7fc2da75f9d0) = 5224
[pid  5223] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5224] set_robust_list(0x7fc2da75f9e0, 24 <unfinished ...>
[pid  5223] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid  5224] <... set_robust_list resumed>) = 0
[pid  5224] memfd_create("syzkaller", 0) = 3
[pid  5224] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fc2d233f000
[pid  5224] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304) = 4194304
[pid  5224] munmap(0x7fc2d233f000, 4194304) = 0
[pid  5224] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5224] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  5224] close(3)                    = 0
[pid  5224] mkdir("./file0", 0777)      = 0
[   86.222117][ T5224] loop0: detected capacity change from 0 to 8192
[   86.232966][ T5224] REISERFS warning:  read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025
[   86.246125][ T5224] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal
[   86.255412][ T5224] REISERFS (device loop0): using ordered data mode
[   86.261923][ T5224] reiserfs: using flush barriers
[   86.268164][ T5224] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30
[   86.284771][ T5224] REISERFS (device loop0): checking transaction log (loop0)
[pid  5224] mount("/dev/loop0", "./file0", "reiserfs", MS_NOEXEC|MS_I_VERSION, "") = 0
[pid  5224] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid  5224] chdir("./file0")            = 0
[pid  5224] ioctl(4, LOOP_CLR_FD)       = 0
[pid  5224] close(4)                    = 0
[pid  5224] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5223] <... futex resumed>)        = 0
[pid  5223] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5223] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5224] <... futex resumed>)        = 1
[pid  5224] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_LARGEFILE|O_NOATIME, 000) = 4
[pid  5224] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5223] <... futex resumed>)        = 0
[pid  5223] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5223] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5224] <... futex resumed>)        = 1
[pid  5224] ftruncate(4, 3608577)       = 0
[pid  5224] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5223] <... futex resumed>)        = 0
[pid  5223] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5223] futex(0x7fc2da8397bc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5223] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc2d271e000
[pid  5223] mprotect(0x7fc2d271f000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5223] clone(child_stack=0x7fc2d273e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5226], tls=0x7fc2d273e700, child_tidptr=0x7fc2d273e9d0) = 5226
[pid  5223] futex(0x7fc2da8397b8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5224] <... futex resumed>)        = 1
[pid  5223] futex(0x7fc2da8397bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5224] openat(AT_FDCWD, ".log", O_WRONLY|O_CREAT|O_TRUNC, 000) = 5
[pid  5224] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5224] futex(0x7fc2da8397a8, FUTEX_WAIT_PRIVATE, 0, NULL./strace-static-x86_64: Process 5226 attached
 <unfinished ...>
[pid  5226] set_robust_list(0x7fc2d273e9e0, 24) = 0
[pid  5226] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000) = 0
[pid  5226] futex(0x7fc2da8397bc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5223] <... futex resumed>)        = 0
[pid  5226] futex(0x7fc2da8397b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5223] exit_group(0 <unfinished ...>
[pid  5226] <... futex resumed>)        = ?
[pid  5224] <... futex resumed>)        = ?
[pid  5223] <... exit_group resumed>)   = ?
[pid  5224] +++ exited with 0 +++
[pid  5226] +++ exited with 0 +++
[pid  5223] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5223, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} ---
umount2("./33", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./33", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x55555753e620 /* 4 entries */, 32768) = 112
umount2("./33/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./33/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./33/binderfs")                 = 0
[   86.340026][ T5224] REISERFS (device loop0): Using r5 hash to sort names
[   86.347280][ T5224] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage.
umount2("./33/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./33/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./33/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./33/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./33/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555557546660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555557546660 /* 0 entries */, 32768) = 0
close(4)                                = 0
rmdir("./33/file0")                     = 0
getdents64(3, 0x55555753e620 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./33")                           = 0
mkdir("./34", 0777)                     = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR)  = 3
ioctl(3, LOOP_CLR_FD)                   = -1 ENXIO (No such device or address)
close(3)                                = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555753d5d0) = 5227
./strace-static-x86_64: Process 5227 attached
[pid  5227] set_robust_list(0x55555753d5e0, 24) = 0
[pid  5227] chdir("./34")               = 0
[pid  5227] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5227] setpgid(0, 0)               = 0
[pid  5227] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5227] write(3, "1000", 4)         = 4
[pid  5227] close(3)                    = 0
[pid  5227] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5227] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5227] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc2da73f000
[pid  5227] mprotect(0x7fc2da740000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5227] clone(child_stack=0x7fc2da75f3f0, 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 5228 attached
, parent_tid=[5228], tls=0x7fc2da75f700, child_tidptr=0x7fc2da75f9d0) = 5228
[pid  5227] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5227] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid  5228] set_robust_list(0x7fc2da75f9e0, 24) = 0
[pid  5228] memfd_create("syzkaller", 0) = 3
[pid  5228] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fc2d233f000
[pid  5228] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304) = 4194304
[pid  5228] munmap(0x7fc2d233f000, 4194304) = 0
[pid  5228] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5228] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  5228] close(3)                    = 0
[pid  5228] mkdir("./file0", 0777)      = 0
[   86.551172][ T5228] loop0: detected capacity change from 0 to 8192
[   86.561537][ T5228] REISERFS warning:  read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025
[   86.575103][ T5228] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal
[   86.584843][ T5228] REISERFS (device loop0): using ordered data mode
[   86.591774][ T5228] reiserfs: using flush barriers
[   86.598282][ T5228] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30
[   86.615102][ T5228] REISERFS (device loop0): checking transaction log (loop0)
[pid  5228] mount("/dev/loop0", "./file0", "reiserfs", MS_NOEXEC|MS_I_VERSION, "") = 0
[pid  5228] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid  5228] chdir("./file0")            = 0
[pid  5228] ioctl(4, LOOP_CLR_FD)       = 0
[pid  5228] close(4)                    = 0
[pid  5228] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5227] <... futex resumed>)        = 0
[pid  5228] <... futex resumed>)        = 1
[pid  5228] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_LARGEFILE|O_NOATIME, 000 <unfinished ...>
[pid  5227] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5227] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5228] <... open resumed>)         = 4
[pid  5228] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5227] <... futex resumed>)        = 0
[pid  5227] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5227] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5228] <... futex resumed>)        = 1
[pid  5228] ftruncate(4, 3608577)       = 0
[pid  5228] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5227] <... futex resumed>)        = 0
[pid  5228] <... futex resumed>)        = 1
[pid  5227] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5227] futex(0x7fc2da8397bc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5227] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc2d271e000
[pid  5227] mprotect(0x7fc2d271f000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5227] clone(child_stack=0x7fc2d273e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5230], tls=0x7fc2d273e700, child_tidptr=0x7fc2d273e9d0) = 5230
[pid  5227] futex(0x7fc2da8397b8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5227] futex(0x7fc2da8397bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[   86.699693][ T5228] REISERFS (device loop0): Using r5 hash to sort names
[   86.707668][ T5228] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage.
[pid  5228] openat(AT_FDCWD, ".log", O_WRONLY|O_CREAT|O_TRUNC, 000) = 5
[pid  5228] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5228] futex(0x7fc2da8397a8, FUTEX_WAIT_PRIVATE, 0, NULL./strace-static-x86_64: Process 5230 attached
 <unfinished ...>
[pid  5230] set_robust_list(0x7fc2d273e9e0, 24) = 0
[pid  5230] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000) = 0
[pid  5230] futex(0x7fc2da8397bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5227] <... futex resumed>)        = 0
[pid  5230] <... futex resumed>)        = 1
[pid  5227] exit_group(0 <unfinished ...>
[pid  5230] futex(0x7fc2da8397b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5228] <... futex resumed>)        = ?
[pid  5227] <... exit_group resumed>)   = ?
[pid  5228] +++ exited with 0 +++
[pid  5230] +++ exited with 0 +++
[pid  5227] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5227, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./34", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./34", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x55555753e620 /* 4 entries */, 32768) = 112
umount2("./34/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./34/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./34/binderfs")                 = 0
umount2("./34/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./34/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./34/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./34/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./34/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555557546660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555557546660 /* 0 entries */, 32768) = 0
close(4)                                = 0
rmdir("./34/file0")                     = 0
getdents64(3, 0x55555753e620 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./34")                           = 0
mkdir("./35", 0777)                     = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR)  = 3
ioctl(3, LOOP_CLR_FD)                   = -1 ENXIO (No such device or address)
close(3)                                = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555753d5d0) = 5231
./strace-static-x86_64: Process 5231 attached
[pid  5231] set_robust_list(0x55555753d5e0, 24) = 0
[pid  5231] chdir("./35")               = 0
[pid  5231] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5231] setpgid(0, 0)               = 0
[pid  5231] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5231] write(3, "1000", 4)         = 4
[pid  5231] close(3)                    = 0
[pid  5231] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5231] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5231] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc2da73f000
[pid  5231] mprotect(0x7fc2da740000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5231] clone(child_stack=0x7fc2da75f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5232], tls=0x7fc2da75f700, child_tidptr=0x7fc2da75f9d0) = 5232
[pid  5231] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5231] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5232 attached
 <unfinished ...>
[pid  5232] set_robust_list(0x7fc2da75f9e0, 24) = 0
[pid  5232] memfd_create("syzkaller", 0) = 3
[pid  5232] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fc2d233f000
[pid  5232] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304) = 4194304
[pid  5232] munmap(0x7fc2d233f000, 4194304) = 0
[pid  5232] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5232] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  5232] close(3)                    = 0
[pid  5232] mkdir("./file0", 0777)      = 0
[   87.056915][ T5232] loop0: detected capacity change from 0 to 8192
[   87.075499][ T5232] REISERFS warning:  read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025
[   87.088839][ T5232] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal
[   87.098190][ T5232] REISERFS (device loop0): using ordered data mode
[   87.104784][ T5232] reiserfs: using flush barriers
[   87.111031][ T5232] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30
[   87.127566][ T5232] REISERFS (device loop0): checking transaction log (loop0)
[pid  5232] mount("/dev/loop0", "./file0", "reiserfs", MS_NOEXEC|MS_I_VERSION, "") = 0
[pid  5232] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid  5232] chdir("./file0")            = 0
[pid  5232] ioctl(4, LOOP_CLR_FD)       = 0
[pid  5232] close(4)                    = 0
[pid  5232] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5231] <... futex resumed>)        = 0
[pid  5232] <... futex resumed>)        = 1
[pid  5231] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5232] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_LARGEFILE|O_NOATIME, 000 <unfinished ...>
[pid  5231] <... futex resumed>)        = 0
[pid  5231] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5232] <... open resumed>)         = 4
[pid  5232] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5231] <... futex resumed>)        = 0
[pid  5232] ftruncate(4, 3608577 <unfinished ...>
[pid  5231] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5231] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5232] <... ftruncate resumed>)    = 0
[pid  5232] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5231] <... futex resumed>)        = 0
[pid  5232] futex(0x7fc2da8397a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5231] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5232] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5231] <... futex resumed>)        = 0
[pid  5231] futex(0x7fc2da8397bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5232] openat(AT_FDCWD, ".log", O_WRONLY|O_CREAT|O_TRUNC, 000 <unfinished ...>
[pid  5231] <... futex resumed>)        = 0
[pid  5231] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid  5232] <... openat resumed>)       = 5
[pid  5231] <... mmap resumed>)         = 0x7fc2d271e000
[pid  5232] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5231] mprotect(0x7fc2d271f000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid  5232] <... futex resumed>)        = 0
[pid  5231] <... mprotect resumed>)     = 0
[pid  5231] clone(child_stack=0x7fc2d273e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid  5232] futex(0x7fc2da8397a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5231] <... clone resumed>, parent_tid=[5234], tls=0x7fc2d273e700, child_tidptr=0x7fc2d273e9d0) = 5234
[pid  5231] futex(0x7fc2da8397b8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5231] futex(0x7fc2da8397bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5234 attached
 <unfinished ...>
[   87.186892][ T5232] REISERFS (device loop0): Using r5 hash to sort names
[   87.194151][ T5232] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage.
[pid  5234] set_robust_list(0x7fc2d273e9e0, 24) = 0
[pid  5234] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000) = 0
[pid  5234] futex(0x7fc2da8397bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5231] <... futex resumed>)        = 0
[pid  5231] exit_group(0)               = ?
[pid  5232] <... futex resumed>)        = ?
[pid  5234] <... futex resumed>)        = ?
[pid  5232] +++ exited with 0 +++
[pid  5234] +++ exited with 0 +++
[pid  5231] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5231, si_uid=0, si_status=0, si_utime=0, si_stime=21 /* 0.21 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./35", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./35", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x55555753e620 /* 4 entries */, 32768) = 112
umount2("./35/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./35/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./35/binderfs")                 = 0
umount2("./35/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./35/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./35/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./35/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./35/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555557546660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555557546660 /* 0 entries */, 32768) = 0
close(4)                                = 0
rmdir("./35/file0")                     = 0
getdents64(3, 0x55555753e620 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./35")                           = 0
mkdir("./36", 0777)                     = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR)  = 3
ioctl(3, LOOP_CLR_FD)                   = -1 ENXIO (No such device or address)
close(3)                                = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555753d5d0) = 5235
./strace-static-x86_64: Process 5235 attached
[pid  5235] set_robust_list(0x55555753d5e0, 24) = 0
[pid  5235] chdir("./36")               = 0
[pid  5235] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5235] setpgid(0, 0)               = 0
[pid  5235] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5235] write(3, "1000", 4)         = 4
[pid  5235] close(3)                    = 0
[pid  5235] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5235] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5235] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc2da73f000
[pid  5235] mprotect(0x7fc2da740000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5235] clone(child_stack=0x7fc2da75f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5236], tls=0x7fc2da75f700, child_tidptr=0x7fc2da75f9d0) = 5236
./strace-static-x86_64: Process 5236 attached
[pid  5236] set_robust_list(0x7fc2da75f9e0, 24) = 0
[pid  5235] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5236] memfd_create("syzkaller", 0) = 3
[pid  5236] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fc2d233f000
[pid  5235] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid  5236] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304) = 4194304
[pid  5236] munmap(0x7fc2d233f000, 4194304) = 0
[pid  5236] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5236] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  5236] close(3)                    = 0
[pid  5236] mkdir("./file0", 0777)      = 0
[   87.446467][ T5236] loop0: detected capacity change from 0 to 8192
[   87.456781][ T5236] REISERFS warning:  read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025
[   87.469851][ T5236] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal
[   87.479477][ T5236] REISERFS (device loop0): using ordered data mode
[   87.486539][ T5236] reiserfs: using flush barriers
[   87.492675][ T5236] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30
[   87.509572][ T5236] REISERFS (device loop0): checking transaction log (loop0)
[pid  5236] mount("/dev/loop0", "./file0", "reiserfs", MS_NOEXEC|MS_I_VERSION, "") = 0
[pid  5236] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid  5236] chdir("./file0")            = 0
[pid  5236] ioctl(4, LOOP_CLR_FD)       = 0
[pid  5236] close(4)                    = 0
[pid  5236] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5235] <... futex resumed>)        = 0
[pid  5236] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_LARGEFILE|O_NOATIME, 000 <unfinished ...>
[pid  5235] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5236] <... open resumed>)         = 4
[pid  5235] <... futex resumed>)        = 0
[pid  5236] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5235] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5236] <... futex resumed>)        = 0
[pid  5235] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5236] ftruncate(4, 3608577 <unfinished ...>
[pid  5235] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5235] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5236] <... ftruncate resumed>)    = 0
[pid  5236] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5235] <... futex resumed>)        = 0
[pid  5236] futex(0x7fc2da8397a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5235] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5236] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5235] <... futex resumed>)        = 0
[pid  5236] openat(AT_FDCWD, ".log", O_WRONLY|O_CREAT|O_TRUNC, 000 <unfinished ...>
[pid  5235] futex(0x7fc2da8397bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5236] <... openat resumed>)       = 5
[pid  5235] <... futex resumed>)        = 0
[pid  5236] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5235] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid  5236] <... futex resumed>)        = 0
[pid  5235] <... mmap resumed>)         = 0x7fc2d271e000
[pid  5236] futex(0x7fc2da8397a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5235] mprotect(0x7fc2d271f000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5235] clone(child_stack=0x7fc2d273e3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5238], tls=0x7fc2d273e700, child_tidptr=0x7fc2d273e9d0) = 5238
[pid  5235] futex(0x7fc2da8397b8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5235] futex(0x7fc2da8397bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5238 attached
 <unfinished ...>
[pid  5238] set_robust_list(0x7fc2d273e9e0, 24) = 0
[pid  5238] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000) = 0
[pid  5238] futex(0x7fc2da8397bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5235] <... futex resumed>)        = 0
[pid  5235] exit_group(0 <unfinished ...>
[pid  5236] <... futex resumed>)        = ?
[pid  5235] <... exit_group resumed>)   = ?
[pid  5238] <... futex resumed>)        = ?
[pid  5236] +++ exited with 0 +++
[pid  5238] +++ exited with 0 +++
[pid  5235] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5235, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
umount2("./36", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./36", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x55555753e620 /* 4 entries */, 32768) = 112
umount2("./36/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./36/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./36/binderfs")                 = 0
[   87.563405][ T5236] REISERFS (device loop0): Using r5 hash to sort names
[   87.570549][ T5236] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage.
umount2("./36/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./36/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./36/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./36/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./36/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555557546660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555557546660 /* 0 entries */, 32768) = 0
close(4)                                = 0
rmdir("./36/file0")                     = 0
getdents64(3, 0x55555753e620 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./36")                           = 0
mkdir("./37", 0777)                     = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR)  = 3
ioctl(3, LOOP_CLR_FD)                   = -1 ENXIO (No such device or address)
close(3)                                = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5239 attached
 <unfinished ...>
[pid  5239] set_robust_list(0x55555753d5e0, 24) = 0
[pid  5089] <... clone resumed>, child_tidptr=0x55555753d5d0) = 5239
[pid  5239] chdir("./37")               = 0
[pid  5239] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5239] setpgid(0, 0)               = 0
[pid  5239] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5239] write(3, "1000", 4)         = 4
[pid  5239] close(3)                    = 0
[pid  5239] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5239] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5239] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc2da73f000
[pid  5239] mprotect(0x7fc2da740000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5239] clone(child_stack=0x7fc2da75f3f0, 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 5240 attached
, parent_tid=[5240], tls=0x7fc2da75f700, child_tidptr=0x7fc2da75f9d0) = 5240
[pid  5239] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5239] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid  5240] set_robust_list(0x7fc2da75f9e0, 24) = 0
[pid  5240] memfd_create("syzkaller", 0) = 3
[pid  5240] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fc2d233f000
[pid  5240] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304) = 4194304
[pid  5240] munmap(0x7fc2d233f000, 4194304) = 0
[pid  5240] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5240] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  5240] close(3)                    = 0
[pid  5240] mkdir("./file0", 0777)      = 0
[   87.762575][ T5240] loop0: detected capacity change from 0 to 8192
[   87.774446][ T5240] REISERFS warning:  read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025
[   87.787928][ T5240] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal
[   87.797461][ T5240] REISERFS (device loop0): using ordered data mode
[   87.803989][ T5240] reiserfs: using flush barriers
[   87.810444][ T5240] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30
[   87.827130][ T5240] REISERFS (device loop0): checking transaction log (loop0)
[pid  5240] mount("/dev/loop0", "./file0", "reiserfs", MS_NOEXEC|MS_I_VERSION, "") = 0
[pid  5240] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid  5240] chdir("./file0")            = 0
[pid  5240] ioctl(4, LOOP_CLR_FD)       = 0
[pid  5240] close(4)                    = 0
[pid  5240] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5239] <... futex resumed>)        = 0
[pid  5239] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5240] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_LARGEFILE|O_NOATIME, 000 <unfinished ...>
[pid  5239] <... futex resumed>)        = 0
[pid  5239] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5240] <... open resumed>)         = 4
[pid  5240] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5239] <... futex resumed>)        = 0
[pid  5240] ftruncate(4, 3608577 <unfinished ...>
[pid  5239] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5239] futex(0x7fc2da8397ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5240] <... ftruncate resumed>)    = 0
[pid  5240] futex(0x7fc2da8397ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5239] <... futex resumed>)        = 0
[pid  5239] futex(0x7fc2da8397a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5239] futex(0x7fc2da8397bc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5239] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc2d271e000
[pid  5239] mprotect(0x7fc2d271f000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5239] clone(child_stack=0x7fc2d273e3f0, 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 5242 attached
, parent_tid=[5242], tls=0x7fc2d273e700, child_tidptr=0x7fc2d273e9d0) = 5242
[pid  5242] set_robust_list(0x7fc2d273e9e0, 24 <unfinished ...>
[pid  5239] futex(0x7fc2da8397b8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5242] <... set_robust_list resumed>) = 0
[pid  5239] <... futex resumed>)        = 0
[pid  5242] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 <unfinished ...>
[pid  5239] futex(0x7fc2da8397bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[   87.881865][ T5240] REISERFS (device loop0): Using r5 hash to sort names
[   87.889065][ T5240] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage.
[pid  5240] openat(AT_FDCWD, ".log", O_WRONLY|O_CREAT|O_TRUNC, 000 <unfinished ...>
[pid  5242] <... mknod resumed>)        = 0
[pid  5242] futex(0x7fc2da8397bc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5242] futex(0x7fc2da8397b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5239] <... futex resumed>)        = 0
[   87.937719][ T5240] REISERFS panic (device loop0): vs-12195 balance_leaf: CFR not initialized
[   87.947173][ T5240] ------------[ cut here ]------------
[   87.952661][ T5240] kernel BUG at fs/reiserfs/prints.c:390!
[   87.959058][ T5240] invalid opcode: 0000 [#1] PREEMPT SMP KASAN
[   87.965178][ T5240] CPU: 1 PID: 5240 Comm: syz-executor421 Not tainted 6.3.0-rc3-next-20230324-syzkaller #0
[   87.975077][ T5240] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023
[   87.985144][ T5240] RIP: 0010:__reiserfs_panic+0xf7/0x150
[   87.990739][ T5240] Code: 65 ff 4d 89 e8 4c 89 f1 4c 89 e2 48 8d b3 a8 06 00 00 49 c7 c1 20 29 ed 91 48 c7 c7 c0 bd 61 8a e8 de 5a 49 ff e8 79 45 65 ff <0f> 0b 49 c7 c6 20 bc 61 8a 4d 89 f4 eb c5 e8 66 45 65 ff 4d 85 e4
[   88.010362][ T5240] RSP: 0018:ffffc90004f66d48 EFLAGS: 00010293
[   88.016460][ T5240] RAX: 0000000000000000 RBX: ffff888075b76000 RCX: 0000000000000000
[   88.024439][ T5240] RDX: ffff88807afc1d40 RSI: ffffffff821d90e7 RDI: 0000000000000005
[   88.032423][ T5240] RBP: ffffc90004f66e18 R08: 0000000000000005 R09: 0000000000000000
[   88.040407][ T5240] R10: 0000000080000000 R11: 0000000000000000 R12: ffffffff8a612fa0
[   88.048392][ T5240] R13: ffffffff8a613980 R14: ffffffff8a61bc60 R15: 0000000000000000
[   88.056377][ T5240] FS:  00007fc2da75f700(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
[   88.065324][ T5240] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   88.071921][ T5240] CR2: 000055555753e5e8 CR3: 00000000267c6000 CR4: 00000000003506e0
[   88.079910][ T5240] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   88.087897][ T5240] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   88.095887][ T5240] Call Trace:
[   88.099177][ T5240]  <TASK>
[   88.102122][ T5240]  ? reiserfs_debug+0x10/0x10
[   88.106913][ T5240]  ? leaf_insert_into_buf+0x86f/0xa20
[   88.112316][ T5240]  balance_leaf+0xd35f/0xddc0
[   88.117033][ T5240]  ? reiserfs_prepare_for_journal+0x162/0x2b0
[   88.123135][ T5240]  ? fix_nodes+0x14cf/0x8660
[   88.127766][ T5240]  ? replace_key+0x170/0x170
[   88.132390][ T5240]  do_balance+0x319/0x810
[   88.136750][ T5240]  ? get_right_neighbor_position+0x170/0x170
[   88.142760][ T5240]  ? wait_for_completion_io_timeout+0x20/0x20
[   88.148869][ T5240]  reiserfs_insert_item+0xd84/0x11a0
[   88.158912][ T5240]  ? reiserfs_paste_into_item+0x8d0/0x8d0
[   88.164695][ T5240]  ? spin_bug+0x1c0/0x1c0
[   88.169049][ T5240]  ? lock_acquire+0x32/0xc0
[   88.173579][ T5240]  ? inode_get_bytes+0x21/0xa0
[   88.178374][ T5240]  ? do_raw_spin_unlock+0x175/0x230
[   88.183601][ T5240]  ? _raw_spin_unlock+0x28/0x40
[   88.188471][ T5240]  ? real_space_diff+0x135/0x170
[   88.193444][ T5240]  reiserfs_new_inode+0xe55/0x2110
[   88.198604][ T5240]  ? reiserfs_fh_to_parent+0x1b0/0x1b0
[   88.204094][ T5240]  ? __mutex_unlock_slowpath+0x157/0x5e0
[   88.209776][ T5240]  ? wait_for_completion_io_timeout+0x20/0x20
[   88.215916][ T5240]  ? dquot_get_next_dqblk+0x180/0x180
[   88.221310][ T5240]  ? make_vfsgid+0x170/0x170
[   88.225933][ T5240]  reiserfs_create+0x351/0x730
[   88.230727][ T5240]  ? reiserfs_link+0x520/0x520
[   88.235523][ T5240]  ? apparmor_path_mknod+0x16f/0x730
[   88.240843][ T5240]  ? security_inode_permission+0xc9/0xf0
[   88.246502][ T5240]  ? bpf_lsm_inode_create+0x9/0x10
[   88.251637][ T5240]  ? reiserfs_link+0x520/0x520
[   88.256429][ T5240]  lookup_open.isra.0+0x105a/0x1400
[   88.261642][ T5240]  ? link_path_walk.part.0+0xd60/0xd60
[   88.267116][ T5240]  ? path_openat+0x90f/0x2750
[   88.271810][ T5240]  ? lock_acquire+0x32/0xc0
[   88.276338][ T5240]  ? path_openat+0x90f/0x2750
[   88.281036][ T5240]  ? down_write_killable+0x250/0x250
[   88.286351][ T5240]  ? __mnt_want_write+0x1fe/0x2e0
[   88.291408][ T5240]  path_openat+0x975/0x2750
[   88.296016][ T5240]  ? path_lookupat+0x840/0x840
[   88.300794][ T5240]  do_filp_open+0x1ba/0x410
[   88.305314][ T5240]  ? may_open_dev+0xf0/0xf0
[   88.309834][ T5240]  ? find_held_lock+0x2d/0x110
[   88.314621][ T5240]  ? do_raw_spin_lock+0x124/0x2b0
[   88.319668][ T5240]  ? spin_bug+0x1c0/0x1c0
[   88.324021][ T5240]  ? _raw_spin_unlock+0x28/0x40
[   88.328902][ T5240]  ? alloc_fd+0x2e4/0x750
[   88.333260][ T5240]  do_sys_openat2+0x16d/0x4c0
[   88.337964][ T5240]  ? ptrace_stop.part.0+0x60f/0x8e0
[   88.343187][ T5240]  ? build_open_flags+0x720/0x720
[   88.348243][ T5240]  ? ptrace_notify+0xfe/0x140
[   88.352944][ T5240]  ? lock_downgrade+0x690/0x690
[   88.357825][ T5240]  __x64_sys_openat+0x143/0x1f0
[   88.362728][ T5240]  ? __ia32_sys_open+0x1c0/0x1c0
[   88.367693][ T5240]  ? _raw_spin_unlock_irq+0x23/0x50
[   88.372913][ T5240]  ? lockdep_hardirqs_on+0x7d/0x100
[   88.378149][ T5240]  ? _raw_spin_unlock_irq+0x2e/0x50
[   88.383366][ T5240]  ? ptrace_notify+0xfe/0x140
[   88.388069][ T5240]  do_syscall_64+0x39/0xb0
[   88.392512][ T5240]  entry_SYSCALL_64_after_hwframe+0x63/0xcd
[   88.398445][ T5240] RIP: 0033:0x7fc2da7b3589
[   88.402879][ T5240] 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
[   88.422502][ T5240] RSP: 002b:00007fc2da75f2f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
[   88.430936][ T5240] RAX: ffffffffffffffda RBX: 00007fc2da8397a0 RCX: 00007fc2da7b3589
[   88.438922][ T5240] RDX: 0000000000000241 RSI: 0000000020000000 RDI: 00000000ffffff9c
[   88.446912][ T5240] RBP: 00007fc2da8062b0 R08: 0000000000000000 R09: 0000000000000000
[   88.454901][ T5240] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fc2da8061b8
[   88.462888][ T5240] R13: 0030656c69662f2e R14: 7366726573696572 R15: 00007fc2da8397a8
[   88.470886][ T5240]  </TASK>
[   88.473930][ T5240] Modules linked in:
[   88.478084][ T5240] ---[ end trace 0000000000000000 ]---
[   88.483770][ T5240] RIP: 0010:__reiserfs_panic+0xf7/0x150
[   88.489556][ T5240] Code: 65 ff 4d 89 e8 4c 89 f1 4c 89 e2 48 8d b3 a8 06 00 00 49 c7 c1 20 29 ed 91 48 c7 c7 c0 bd 61 8a e8 de 5a 49 ff e8 79 45 65 ff <0f> 0b 49 c7 c6 20 bc 61 8a 4d 89 f4 eb c5 e8 66 45 65 ff 4d 85 e4
[   88.509295][ T5240] RSP: 0018:ffffc90004f66d48 EFLAGS: 00010293
[   88.515528][ T5240] RAX: 0000000000000000 RBX: ffff888075b76000 RCX: 0000000000000000
[   88.523518][ T5240] RDX: ffff88807afc1d40 RSI: ffffffff821d90e7 RDI: 0000000000000005
[   88.531543][ T5240] RBP: ffffc90004f66e18 R08: 0000000000000005 R09: 0000000000000000
[   88.539577][ T5240] R10: 0000000080000000 R11: 0000000000000000 R12: ffffffff8a612fa0
[   88.547615][ T5240] R13: ffffffff8a613980 R14: ffffffff8a61bc60 R15: 0000000000000000
[   88.555639][ T5240] FS:  00007fc2da75f700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
[   88.564662][ T5240] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   88.571272][ T5240] CR2: 00007fc2da7f4c60 CR3: 00000000267c6000 CR4: 00000000003506f0
[   88.579305][ T5240] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[pid  5239] exit_group(0 <unfinished ...>
[pid  5242] <... futex resumed>)        = ?
[pid  5239] <... exit_group resumed>)   = ?
[pid  5242] +++ exited with 0 +++
[   88.587332][ T5240] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   88.595374][ T5240] Kernel panic - not syncing: Fatal exception
[   88.601709][ T5240] Kernel Offset: disabled
[   88.606046][ T5240] Rebooting in 86400 seconds..