./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor455265970 <...> Warning: Permanently added '10.128.1.103' (ECDSA) to the list of known hosts. execve("./syz-executor455265970", ["./syz-executor455265970"], 0x7ffde4a99930 /* 10 vars */) = 0 brk(NULL) = 0x555557086000 brk(0x555557086c40) = 0x555557086c40 arch_prctl(ARCH_SET_FS, 0x555557086300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor455265970", 4096) = 27 brk(0x5555570a7c40) = 0x5555570a7c40 brk(0x5555570a8000) = 0x5555570a8000 mprotect(0x7faaa96a2000, 16384, PROT_READ) = 0 mmap(0x1ffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffff000 mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000 mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x21000000 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4995 attached , child_tidptr=0x5555570865d0) = 4995 [pid 4994] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4995] getpid(./strace-static-x86_64: Process 4996 attached ) = 4995 [pid 4994] <... clone resumed>, child_tidptr=0x5555570865d0) = 4996 [pid 4994] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570865d0) = 4997 [pid 4994] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4997 attached [pid 4996] getpid( [pid 4995] mkdir("./syzkaller.EwwTWS", 0700./strace-static-x86_64: Process 4998 attached [pid 4994] <... clone resumed>, child_tidptr=0x5555570865d0) = 4998 [pid 4994] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4996] <... getpid resumed>) = 4996 [pid 4996] mkdir("./syzkaller.JB7nMW", 0700./strace-static-x86_64: Process 4999 attached [pid 4998] getpid( [pid 4997] getpid( [pid 4996] <... mkdir resumed>) = 0 [pid 4994] <... clone resumed>, child_tidptr=0x5555570865d0) = 4999 [pid 4998] <... getpid resumed>) = 4998 [pid 4997] <... getpid resumed>) = 4997 [pid 4994] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4998] mkdir("./syzkaller.be2V49", 0700 [pid 4997] mkdir("./syzkaller.ND42x4", 0700 [pid 4996] chmod("./syzkaller.JB7nMW", 0777) = 0 [pid 4994] <... clone resumed>, child_tidptr=0x5555570865d0) = 5000 [pid 4996] chdir("./syzkaller.JB7nMW" [pid 4999] getpid( [pid 4996] <... chdir resumed>) = 0 [pid 4996] mkdir("./0", 0777 [pid 4997] <... mkdir resumed>) = 0 [pid 4996] <... mkdir resumed>) = 0 [pid 4996] openat(AT_FDCWD, "/dev/loop1", O_RDWR./strace-static-x86_64: Process 5000 attached [pid 4999] <... getpid resumed>) = 4999 [pid 4998] <... mkdir resumed>) = 0 [pid 4997] chmod("./syzkaller.ND42x4", 0777 [pid 4995] <... mkdir resumed>) = 0 [pid 4999] mkdir("./syzkaller.ouMJse", 0700 [pid 4998] chmod("./syzkaller.be2V49", 0777 [pid 4997] <... chmod resumed>) = 0 [pid 4999] <... mkdir resumed>) = 0 [pid 4998] <... chmod resumed>) = 0 [pid 4997] chdir("./syzkaller.ND42x4" [pid 4996] <... openat resumed>) = 3 [pid 4999] chmod("./syzkaller.ouMJse", 0777 [pid 4998] chdir("./syzkaller.be2V49" [pid 4997] <... chdir resumed>) = 0 [pid 5000] getpid( [pid 4998] <... chdir resumed>) = 0 [pid 4996] ioctl(3, LOOP_CLR_FD [pid 4995] chmod("./syzkaller.EwwTWS", 0777 [pid 4997] mkdir("./0", 0777 [pid 4998] mkdir("./0", 0777 [pid 4997] <... mkdir resumed>) = 0 [pid 4995] <... chmod resumed>) = 0 [pid 4995] chdir("./syzkaller.EwwTWS" [pid 4999] <... chmod resumed>) = 0 [pid 4998] <... mkdir resumed>) = 0 [pid 4997] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5000] <... getpid resumed>) = 5000 [pid 4999] chdir("./syzkaller.ouMJse" [pid 4998] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4997] <... openat resumed>) = 3 [pid 4995] <... chdir resumed>) = 0 [pid 5000] mkdir("./syzkaller.xSrxUe", 0700 [pid 4999] <... chdir resumed>) = 0 [pid 4998] <... openat resumed>) = 3 [pid 4997] ioctl(3, LOOP_CLR_FD [pid 4996] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4999] mkdir("./0", 0777 [pid 4998] ioctl(3, LOOP_CLR_FD [pid 4997] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4995] mkdir("./0", 0777 [pid 4999] <... mkdir resumed>) = 0 [pid 4998] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4997] close(3 [pid 4996] close(3 [pid 5000] <... mkdir resumed>) = 0 [pid 4999] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4998] close(3 [pid 4995] <... mkdir resumed>) = 0 [pid 5000] chmod("./syzkaller.xSrxUe", 0777 [pid 4995] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5000] <... chmod resumed>) = 0 [pid 4995] <... openat resumed>) = 3 [pid 5000] chdir("./syzkaller.xSrxUe" [pid 4995] ioctl(3, LOOP_CLR_FD [pid 5000] <... chdir resumed>) = 0 [pid 4995] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5000] mkdir("./0", 0777 [pid 4995] close(3 [pid 4997] <... close resumed>) = 0 [pid 4995] <... close resumed>) = 0 [pid 4998] <... close resumed>) = 0 [pid 4997] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4995] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4999] <... openat resumed>) = 3 [pid 4998] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4996] <... close resumed>) = 0 [pid 4999] ioctl(3, LOOP_CLR_FD [pid 5000] <... mkdir resumed>) = 0 [pid 5000] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4995] <... clone resumed>, child_tidptr=0x5555570865d0) = 5002 [pid 4997] <... clone resumed>, child_tidptr=0x5555570865d0) = 5001 [pid 5000] <... openat resumed>) = 3 [pid 4999] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4998] <... clone resumed>, child_tidptr=0x5555570865d0) = 5003 [pid 4996] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4999] close(3 [pid 5000] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5000] close(3 [pid 4999] <... close resumed>) = 0 [pid 4999] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4996] <... clone resumed>, child_tidptr=0x5555570865d0) = 5004 ./strace-static-x86_64: Process 5001 attached [pid 5000] <... close resumed>) = 0 ./strace-static-x86_64: Process 5003 attached [pid 5001] chdir("./0" [pid 5000] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5004 attached ./strace-static-x86_64: Process 5002 attached [pid 5003] chdir("./0" [pid 5001] <... chdir resumed>) = 0 [pid 4999] <... clone resumed>, child_tidptr=0x5555570865d0) = 5005 [pid 5004] chdir("./0" [pid 5003] <... chdir resumed>) = 0 [pid 5002] chdir("./0" [pid 5001] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5000] <... clone resumed>, child_tidptr=0x5555570865d0) = 5006 ./strace-static-x86_64: Process 5005 attached [pid 5004] <... chdir resumed>) = 0 [pid 5003] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5002] <... chdir resumed>) = 0 [pid 5001] <... prctl resumed>) = 0 ./strace-static-x86_64: Process 5006 attached [pid 5005] chdir("./0" [pid 5004] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5003] <... prctl resumed>) = 0 [pid 5002] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5001] setpgid(0, 0 [pid 5006] chdir("./0" [pid 5005] <... chdir resumed>) = 0 [pid 5004] <... prctl resumed>) = 0 [pid 5003] setpgid(0, 0 [pid 5002] <... prctl resumed>) = 0 [pid 5001] <... setpgid resumed>) = 0 [pid 5006] <... chdir resumed>) = 0 [pid 5005] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5004] setpgid(0, 0 [pid 5003] <... setpgid resumed>) = 0 [pid 5002] setpgid(0, 0 [pid 5001] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5006] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5005] <... prctl resumed>) = 0 [pid 5004] <... setpgid resumed>) = 0 [pid 5003] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5002] <... setpgid resumed>) = 0 [pid 5001] <... openat resumed>) = 3 [pid 5006] <... prctl resumed>) = 0 [pid 5005] setpgid(0, 0 [pid 5004] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5003] <... openat resumed>) = 3 [pid 5002] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5001] write(3, "1000", 4 [pid 5006] setpgid(0, 0 [pid 5005] <... setpgid resumed>) = 0 [pid 5004] <... openat resumed>) = 3 [pid 5003] write(3, "1000", 4 [pid 5002] <... openat resumed>) = 3 [pid 5001] <... write resumed>) = 4 [pid 5006] <... setpgid resumed>) = 0 [pid 5005] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5004] write(3, "1000", 4 [pid 5003] <... write resumed>) = 4 [pid 5002] write(3, "1000", 4 [pid 5001] close(3 [pid 5006] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5005] <... openat resumed>) = 3 [pid 5004] <... write resumed>) = 4 [pid 5003] close(3 [pid 5002] <... write resumed>) = 4 [pid 5001] <... close resumed>) = 0 [pid 5006] <... openat resumed>) = 3 [pid 5005] write(3, "1000", 4 [pid 5004] close(3 [pid 5003] <... close resumed>) = 0 [pid 5002] close(3 [pid 5001] symlink("/dev/binderfs", "./binderfs" [pid 5006] write(3, "1000", 4 [pid 5005] <... write resumed>) = 4 [pid 5004] <... close resumed>) = 0 [pid 5003] symlink("/dev/binderfs", "./binderfs" [pid 5002] <... close resumed>) = 0 [pid 5001] <... symlink resumed>) = 0 [pid 5006] <... write resumed>) = 4 [pid 5005] close(3 [pid 5004] symlink("/dev/binderfs", "./binderfs" [pid 5003] <... symlink resumed>) = 0 [pid 5002] symlink("/dev/binderfs", "./binderfs" [pid 5001] memfd_create("syzkaller", 0 [pid 5006] close(3 [pid 5005] <... close resumed>) = 0 [pid 5004] <... symlink resumed>) = 0 [pid 5003] memfd_create("syzkaller", 0 [pid 5002] <... symlink resumed>) = 0 [pid 5006] <... close resumed>) = 0 [pid 5005] symlink("/dev/binderfs", "./binderfs" [pid 5004] memfd_create("syzkaller", 0 [pid 5003] <... memfd_create resumed>) = 3 [pid 5002] memfd_create("syzkaller", 0 [pid 5006] symlink("/dev/binderfs", "./binderfs" [pid 5005] <... symlink resumed>) = 0 [pid 5004] <... memfd_create resumed>) = 3 [pid 5003] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5002] <... memfd_create resumed>) = 3 [pid 5006] <... symlink resumed>) = 0 [pid 5005] memfd_create("syzkaller", 0 [pid 5004] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5003] <... mmap resumed>) = 0x7faaa11e5000 [pid 5002] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5006] memfd_create("syzkaller", 0 [pid 5005] <... memfd_create resumed>) = 3 [pid 5004] <... mmap resumed>) = 0x7faaa11e5000 [pid 5002] <... mmap resumed>) = 0x7faaa11e5000 [pid 5006] <... memfd_create resumed>) = 3 [pid 5005] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5001] <... memfd_create resumed>) = 3 [pid 5005] <... mmap resumed>) = 0x7faaa11e5000 syzkaller login: [ 73.473017][ T5001] memfd_create() without MFD_EXEC nor MFD_NOEXEC_SEAL, pid=5001 'syz-executor455' [pid 5001] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5006] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5001] <... mmap resumed>) = 0x7faaa11e5000 [pid 5006] <... mmap resumed>) = 0x7faaa11e5000 [pid 5005] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5003] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5001] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5004] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5006] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5002] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5004] <... write resumed>) = 4194304 [pid 5006] <... write resumed>) = 4194304 [pid 5004] munmap(0x7faaa11e5000, 4194304 [pid 5006] munmap(0x7faaa11e5000, 4194304 [pid 5004] <... munmap resumed>) = 0 [pid 5006] <... munmap resumed>) = 0 [pid 5004] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5006] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5004] <... openat resumed>) = 4 [pid 5006] <... openat resumed>) = 4 [pid 5004] ioctl(4, LOOP_SET_FD, 3 [pid 5001] <... write resumed>) = 4194304 [pid 5006] ioctl(4, LOOP_SET_FD, 3 [pid 5003] <... write resumed>) = 4194304 [pid 5003] munmap(0x7faaa11e5000, 4194304 [pid 5001] munmap(0x7faaa11e5000, 4194304 [pid 5003] <... munmap resumed>) = 0 [pid 5003] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 5003] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5003] close(3) = 0 [pid 5003] mkdir("./file0", 0777 [pid 5001] <... munmap resumed>) = 0 [pid 5006] <... ioctl resumed>) = 0 [pid 5005] <... write resumed>) = 4194304 [pid 5003] <... mkdir resumed>) = 0 [pid 5001] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5006] close(3 [pid 5005] munmap(0x7faaa11e5000, 4194304 [pid 5004] <... ioctl resumed>) = 0 [pid 5003] mount("/dev/loop3", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5002] <... write resumed>) = 4194304 [pid 5001] <... openat resumed>) = 4 [pid 5006] <... close resumed>) = 0 [pid 5005] <... munmap resumed>) = 0 [ 73.801463][ T5004] loop1: detected capacity change from 0 to 8192 [ 73.809602][ T5006] loop5: detected capacity change from 0 to 8192 [ 73.816035][ T5003] loop3: detected capacity change from 0 to 8192 [ 73.833782][ T5001] loop2: detected capacity change from 0 to 8192 [pid 5001] ioctl(4, LOOP_SET_FD, 3 [pid 5006] mkdir("./file0", 0777 [pid 5005] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5004] close(3 [pid 5002] munmap(0x7faaa11e5000, 4194304 [pid 5006] <... mkdir resumed>) = 0 [pid 5005] <... openat resumed>) = 4 [pid 5004] <... close resumed>) = 0 [pid 5002] <... munmap resumed>) = 0 [pid 5006] mount("/dev/loop5", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5005] ioctl(4, LOOP_SET_FD, 3 [pid 5004] mkdir("./file0", 0777 [pid 5002] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5004] <... mkdir resumed>) = 0 [pid 5002] <... openat resumed>) = 4 [pid 5001] <... ioctl resumed>) = 0 [pid 5004] mount("/dev/loop1", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5002] ioctl(4, LOOP_SET_FD, 3 [pid 5001] close(3) = 0 [pid 5001] mkdir("./file0", 0777) = 0 [pid 5001] mount("/dev/loop2", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5005] <... ioctl resumed>) = 0 [pid 5005] close(3) = 0 [pid 5005] mkdir("./file0", 0777) = 0 [ 73.836175][ T5003] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 73.847409][ T5005] loop4: detected capacity change from 0 to 8192 [ 73.854326][ T5003] REISERFS (device loop3): found reiserfs format "3.5" with non-standard journal [ 73.863640][ T5002] loop0: detected capacity change from 0 to 8192 [ 73.871046][ T5006] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5005] mount("/dev/loop4", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5002] <... ioctl resumed>) = 0 [pid 5002] close(3) = 0 [pid 5002] mkdir("./file0", 0777) = 0 [ 73.890380][ T5004] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 73.890963][ T5003] REISERFS (device loop3): using ordered data mode [ 73.904356][ T5001] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 73.910867][ T5003] reiserfs: using flush barriers [ 73.920938][ T5004] REISERFS (device loop1): found reiserfs format "3.5" with non-standard journal [ 73.938276][ T5004] REISERFS (device loop1): using ordered data mode [ 73.940499][ T5006] REISERFS (device loop5): found reiserfs format "3.5" with non-standard journal [ 73.944864][ T5003] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 73.945485][ T5003] REISERFS (device loop3): checking transaction log (loop3) [ 73.971768][ T5006] REISERFS (device loop5): using ordered data mode [ 73.978366][ T5004] reiserfs: using flush barriers [ 73.989340][ T5005] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 73.991313][ T5006] reiserfs: using flush barriers [ 74.002351][ T5002] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 74.002375][ T5002] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 74.002471][ T5002] REISERFS (device loop0): using ordered data mode [ 74.011710][ T5003] REISERFS (device loop3): Using tea hash to sort names [ 74.029659][ T5001] REISERFS (device loop2): found reiserfs format "3.5" with non-standard journal [pid 5002] mount("/dev/loop0", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5003] <... mount resumed>) = 0 [pid 5003] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [ 74.029758][ T5001] REISERFS (device loop2): using ordered data mode [ 74.037660][ T5003] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 74.048780][ T5005] REISERFS (device loop4): found reiserfs format "3.5" with non-standard journal [ 74.053062][ T5002] reiserfs: using flush barriers [ 74.061859][ T5004] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5003] chdir("./file0") = 0 [ 74.069456][ T5002] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 74.080345][ T5001] reiserfs: using flush barriers [ 74.082995][ T5002] REISERFS (device loop0): checking transaction log (loop0) [ 74.106891][ T5006] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 74.115204][ T5005] REISERFS (device loop4): using ordered data mode [pid 5003] ioctl(4, LOOP_CLR_FD) = 0 [ 74.122863][ T5004] REISERFS (device loop1): checking transaction log (loop1) [ 74.127386][ T5005] reiserfs: using flush barriers [ 74.150335][ T5001] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 74.157975][ T5006] REISERFS (device loop5): checking transaction log (loop5) [ 74.165786][ T5001] REISERFS (device loop2): checking transaction log (loop2) [ 74.178671][ T5002] REISERFS (device loop0): Using tea hash to sort names [pid 5003] close(4) = 0 [pid 5002] <... mount resumed>) = 0 [ 74.191718][ T5004] REISERFS (device loop1): Using tea hash to sort names [ 74.193588][ T5002] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 74.203417][ T5004] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 74.226033][ T5005] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5003] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5004] <... mount resumed>) = 0 [pid 5004] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5004] chdir("./file0") = 0 [pid 5004] ioctl(4, LOOP_CLR_FD [pid 5003] <... openat resumed>) = 4 [pid 5003] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 5002] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5004] <... ioctl resumed>) = 0 [pid 5003] <... mmap resumed>) = 0x20000000 [pid 5003] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5002] <... openat resumed>) = 3 [pid 5003] exit_group(0 [pid 5002] chdir("./file0" [pid 5003] <... exit_group resumed>) = ? [pid 5002] <... chdir resumed>) = 0 [pid 5004] close(4 [pid 5003] +++ exited with 0 +++ [ 74.249405][ T5006] REISERFS (device loop5): Using tea hash to sort names [pid 5002] ioctl(4, LOOP_CLR_FD [pid 5004] <... close resumed>) = 0 [pid 5002] <... ioctl resumed>) = 0 [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5003, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=21 /* 0.21 s */} --- [pid 5004] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5004] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0) = 0x20000000 [pid 5004] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5004] exit_group(0 [pid 5002] close(4 [pid 4998] umount2("./0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5002] <... close resumed>) = 0 [pid 5006] <... mount resumed>) = 0 [pid 5004] <... exit_group resumed>) = ? [pid 5002] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5001] <... mount resumed>) = 0 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5006] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5004] +++ exited with 0 +++ [pid 5002] <... openat resumed>) = 4 [pid 5001] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 4998] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5006] chdir("./file0" [pid 5002] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 5001] <... openat resumed>) = 3 [pid 4998] <... openat resumed>) = 3 [pid 5001] chdir("./file0" [pid 4998] fstat(3, [pid 4996] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5004, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} --- [pid 5002] <... mmap resumed>) = 0x20000000 [pid 5001] <... chdir resumed>) = 0 [pid 4998] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5001] ioctl(4, LOOP_CLR_FD [pid 4996] umount2("./0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5006] <... chdir resumed>) = 0 [pid 5002] ioctl(4, FS_IOC_GETVERSION [pid 5001] <... ioctl resumed>) = 0 [pid 4998] getdents64(3, [pid 4996] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5001] close(4 [pid 4998] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 4996] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5006] ioctl(4, LOOP_CLR_FD [pid 5002] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5001] <... close resumed>) = 0 [pid 4998] umount2("./0/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4996] <... openat resumed>) = 3 [pid 5002] exit_group(0 [pid 5001] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5002] <... exit_group resumed>) = ? [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4996] fstat(3, [pid 5001] <... openat resumed>) = 4 [pid 4998] lstat("./0/binderfs", [pid 4996] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5002] +++ exited with 0 +++ [pid 4998] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4996] getdents64(3, [pid 4995] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5002, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=17 /* 0.17 s */} --- [pid 4998] unlink("./0/binderfs" [pid 4996] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [ 74.275056][ T5001] REISERFS (device loop2): Using tea hash to sort names [ 74.277984][ T5006] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 74.282767][ T5001] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 74.302939][ T5005] REISERFS (device loop4): checking transaction log (loop4) [pid 5006] <... ioctl resumed>) = 0 [pid 5001] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 4998] <... unlink resumed>) = 0 [pid 4996] umount2("./0/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5006] close(4 [pid 5001] <... mmap resumed>) = 0x20000000 [pid 4998] umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4996] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4995] umount2("./0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4996] lstat("./0/binderfs", [pid 5006] <... close resumed>) = 0 [pid 4995] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4996] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5006] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5001] ioctl(4, FS_IOC_GETVERSION [pid 4996] unlink("./0/binderfs" [pid 4995] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5006] <... openat resumed>) = 4 [pid 4995] <... openat resumed>) = 3 [pid 4996] <... unlink resumed>) = 0 [pid 4996] umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4995] fstat(3, [pid 5001] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5006] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 4995] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5001] exit_group(0 [pid 4995] getdents64(3, [pid 5006] <... mmap resumed>) = 0x20000000 [pid 5005] <... mount resumed>) = 0 [pid 5006] ioctl(4, FS_IOC_GETVERSION [pid 5001] <... exit_group resumed>) = ? [pid 4995] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 5005] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5001] +++ exited with 0 +++ [pid 4995] umount2("./0/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5006] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 4997] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5001, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=17 /* 0.17 s */} --- [pid 4995] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5006] exit_group(0 [pid 4997] umount2("./0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4995] lstat("./0/binderfs", [pid 5006] <... exit_group resumed>) = ? [pid 4997] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4997] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4995] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5005] chdir("./file0" [pid 5006] +++ exited with 0 +++ [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5006, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=19 /* 0.19 s */} --- [pid 4997] <... openat resumed>) = 3 [pid 4995] unlink("./0/binderfs" [pid 4997] fstat(3, [pid 4995] <... unlink resumed>) = 0 [pid 4997] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4995] umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] umount2("./0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4997] getdents64(3, [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4997] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 5000] <... openat resumed>) = 3 [pid 4997] umount2("./0/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] fstat(3, [pid 4997] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4997] lstat("./0/binderfs", [pid 5000] getdents64(3, [pid 4997] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 4997] unlink("./0/binderfs" [pid 5000] umount2("./0/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4997] <... unlink resumed>) = 0 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./0/binderfs", [pid 4997] umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5005] <... chdir resumed>) = 0 [pid 5000] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] unlink("./0/binderfs" [pid 5005] ioctl(4, LOOP_CLR_FD) = 0 [pid 5000] <... unlink resumed>) = 0 [pid 5005] close(4 [pid 5000] umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5005] <... close resumed>) = 0 [pid 5005] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5005] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0) = 0x20000000 [pid 5005] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5005] exit_group(0) = ? [ 74.328339][ T5005] REISERFS (device loop4): Using tea hash to sort names [ 74.338889][ T5005] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [pid 5005] +++ exited with 0 +++ [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5005, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=18 /* 0.18 s */} --- [pid 4999] umount2("./0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 4999] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] getdents64(3, 0x555557087620 /* 4 entries */, 32768) = 112 [pid 4999] umount2("./0/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] lstat("./0/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4999] unlink("./0/binderfs") = 0 [pid 4999] umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4996] <... umount2 resumed>) = 0 [pid 4997] <... umount2 resumed>) = 0 [pid 4999] <... umount2 resumed>) = 0 [pid 4997] umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4996] umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4997] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4996] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4997] lstat("./0/file0", [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4996] lstat("./0/file0", [pid 4999] lstat("./0/file0", [pid 4997] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4996] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4997] umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4996] umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4997] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] <... umount2 resumed>) = 0 [pid 4997] openat(AT_FDCWD, "./0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4996] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] openat(AT_FDCWD, "./0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4997] <... openat resumed>) = 4 [pid 4996] openat(AT_FDCWD, "./0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] <... umount2 resumed>) = 0 [pid 4999] <... openat resumed>) = 4 [pid 4997] fstat(4, [pid 4999] fstat(4, [pid 4996] <... openat resumed>) = 4 [pid 4997] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4997] getdents64(4, [pid 4996] fstat(4, [pid 4999] getdents64(4, [pid 5000] lstat("./0/file0", [pid 4999] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4997] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4998] umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4996] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] getdents64(4, [pid 4997] getdents64(4, [pid 5000] umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4997] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4996] getdents64(4, [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] close(4 [pid 4998] lstat("./0/file0", [pid 4997] close(4 [pid 5000] openat(AT_FDCWD, "./0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4999] <... close resumed>) = 0 [pid 4996] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4999] rmdir("./0/file0" [pid 4997] <... close resumed>) = 0 [pid 5000] <... openat resumed>) = 4 [pid 4999] <... rmdir resumed>) = 0 [pid 4997] rmdir("./0/file0" [pid 5000] fstat(4, [pid 4999] getdents64(3, [pid 4998] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4996] getdents64(4, [pid 5000] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 4997] <... rmdir resumed>) = 0 [pid 4998] umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4996] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4995] <... umount2 resumed>) = 0 [pid 5000] getdents64(4, [pid 4999] close(3 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4997] getdents64(3, [pid 4996] close(4 [pid 4995] umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4999] <... close resumed>) = 0 [pid 5000] getdents64(4, [pid 4999] rmdir("./0" [pid 5000] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4999] <... rmdir resumed>) = 0 [pid 5000] close(4 [pid 4999] mkdir("./1", 0777 [pid 4998] openat(AT_FDCWD, "./0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4997] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 4996] <... close resumed>) = 0 [pid 4995] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] <... close resumed>) = 0 [pid 4999] <... mkdir resumed>) = 0 [pid 4998] <... openat resumed>) = 4 [pid 5000] rmdir("./0/file0" [pid 4999] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4998] fstat(4, [pid 4997] close(3 [pid 4996] rmdir("./0/file0" [pid 4995] lstat("./0/file0", [pid 5000] <... rmdir resumed>) = 0 [pid 4999] <... openat resumed>) = 3 [pid 4998] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4997] <... close resumed>) = 0 [pid 5000] getdents64(3, [pid 4999] ioctl(3, LOOP_CLR_FD [pid 4998] getdents64(4, [pid 4997] rmdir("./0" [pid 4996] <... rmdir resumed>) = 0 [pid 4995] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 4999] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4998] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 5000] close(3 [pid 4999] close(3 [pid 4998] getdents64(4, [pid 4997] <... rmdir resumed>) = 0 [pid 4996] getdents64(3, [pid 4995] umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] <... close resumed>) = 0 [pid 4999] <... close resumed>) = 0 [pid 4998] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4997] mkdir("./1", 0777 [pid 4996] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 4995] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] rmdir("./0" [pid 4999] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4998] close(4 [pid 5000] <... rmdir resumed>) = 0 [pid 4997] <... mkdir resumed>) = 0 [pid 4996] close(3 [pid 4995] openat(AT_FDCWD, "./0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5000] mkdir("./1", 0777 [pid 4999] <... clone resumed>, child_tidptr=0x5555570865d0) = 5016 [pid 4998] <... close resumed>) = 0 [pid 4997] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4996] <... close resumed>) = 0 [pid 5000] <... mkdir resumed>) = 0 [pid 4998] rmdir("./0/file0" [pid 4995] <... openat resumed>) = 4 [pid 5000] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4997] <... openat resumed>) = 3 [pid 4996] rmdir("./0" [pid 5000] <... openat resumed>) = 3 [pid 4998] <... rmdir resumed>) = 0 [pid 4997] ioctl(3, LOOP_CLR_FD [pid 4995] fstat(4, [pid 5000] ioctl(3, LOOP_CLR_FD [pid 4998] getdents64(3, [pid 4997] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4996] <... rmdir resumed>) = 0 [pid 5000] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4998] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 4997] close(3 [pid 4996] mkdir("./1", 0777 [pid 4995] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 ./strace-static-x86_64: Process 5016 attached [pid 5000] close(3 [pid 4998] close(3 [pid 4997] <... close resumed>) = 0 [pid 5016] chdir("./1" [pid 5000] <... close resumed>) = 0 [pid 4998] <... close resumed>) = 0 [pid 4996] <... mkdir resumed>) = 0 [pid 4997] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4995] getdents64(4, [pid 5016] <... chdir resumed>) = 0 [pid 5000] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4998] rmdir("./0" [pid 4996] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5016] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4995] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 5016] <... prctl resumed>) = 0 [pid 5000] <... clone resumed>, child_tidptr=0x5555570865d0) = 5019 [pid 4998] <... rmdir resumed>) = 0 [pid 4997] <... clone resumed>, child_tidptr=0x5555570865d0) = 5018 [pid 4996] <... openat resumed>) = 3 [pid 4995] getdents64(4, [pid 5016] setpgid(0, 0 [pid 4998] mkdir("./1", 0777 [pid 4996] ioctl(3, LOOP_CLR_FD [pid 4995] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 5016] <... setpgid resumed>) = 0 [pid 5016] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4998] <... mkdir resumed>) = 0 [pid 4996] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4995] close(4./strace-static-x86_64: Process 5019 attached [pid 5016] <... openat resumed>) = 3 [pid 4998] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4996] close(3 [pid 4995] <... close resumed>) = 0 [pid 5019] chdir("./1" [pid 5016] write(3, "1000", 4 [pid 4998] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5018 attached [pid 5019] <... chdir resumed>) = 0 [pid 5016] <... write resumed>) = 4 [pid 4998] ioctl(3, LOOP_CLR_FD [pid 4996] <... close resumed>) = 0 [pid 4995] rmdir("./0/file0" [pid 5019] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5018] chdir("./1" [pid 5016] close(3 [pid 4998] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4996] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5019] <... prctl resumed>) = 0 [pid 5018] <... chdir resumed>) = 0 [pid 5016] <... close resumed>) = 0 [pid 4998] close(3 [pid 4995] <... rmdir resumed>) = 0 [pid 5019] setpgid(0, 0 [pid 5016] symlink("/dev/binderfs", "./binderfs" [pid 5019] <... setpgid resumed>) = 0 [pid 5018] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5016] <... symlink resumed>) = 0 [pid 4998] <... close resumed>) = 0 [pid 4995] getdents64(3, [pid 5019] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5016] memfd_create("syzkaller", 0 [pid 4998] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4996] <... clone resumed>, child_tidptr=0x5555570865d0) = 5020 [pid 4995] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 5019] <... openat resumed>) = 3 [pid 5016] <... memfd_create resumed>) = 3 [pid 5019] write(3, "1000", 4 [pid 5016] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 4995] close(3 [pid 5019] <... write resumed>) = 4 [pid 5018] <... prctl resumed>) = 0 [pid 5016] <... mmap resumed>) = 0x7faaa11e5000 [pid 4998] <... clone resumed>, child_tidptr=0x5555570865d0) = 5021 ./strace-static-x86_64: Process 5020 attached [pid 5019] close(3 [pid 5018] setpgid(0, 0 [pid 4995] <... close resumed>) = 0 [pid 5020] chdir("./1" [pid 5019] <... close resumed>) = 0 [pid 5018] <... setpgid resumed>) = 0 [pid 4995] rmdir("./0"./strace-static-x86_64: Process 5021 attached [pid 5020] <... chdir resumed>) = 0 [pid 5019] symlink("/dev/binderfs", "./binderfs" [pid 5018] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5021] chdir("./1" [pid 5020] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5019] <... symlink resumed>) = 0 [pid 5018] <... openat resumed>) = 3 [pid 4995] <... rmdir resumed>) = 0 [pid 5021] <... chdir resumed>) = 0 [pid 5020] <... prctl resumed>) = 0 [pid 5019] memfd_create("syzkaller", 0 [pid 5018] write(3, "1000", 4 [pid 4995] mkdir("./1", 0777 [pid 5021] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5020] setpgid(0, 0 [pid 5019] <... memfd_create resumed>) = 3 [pid 5018] <... write resumed>) = 4 [pid 5021] <... prctl resumed>) = 0 [pid 5020] <... setpgid resumed>) = 0 [pid 5019] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5018] close(3 [pid 4995] <... mkdir resumed>) = 0 [pid 5021] setpgid(0, 0 [pid 5020] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5019] <... mmap resumed>) = 0x7faaa11e5000 [pid 5018] <... close resumed>) = 0 [pid 4995] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5021] <... setpgid resumed>) = 0 [pid 5020] <... openat resumed>) = 3 [pid 5018] symlink("/dev/binderfs", "./binderfs" [pid 5021] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5020] write(3, "1000", 4 [pid 4995] <... openat resumed>) = 3 [pid 5021] <... openat resumed>) = 3 [pid 5020] <... write resumed>) = 4 [pid 5018] <... symlink resumed>) = 0 [pid 4995] ioctl(3, LOOP_CLR_FD [pid 5021] write(3, "1000", 4 [pid 5020] close(3 [pid 5018] memfd_create("syzkaller", 0 [pid 4995] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5021] <... write resumed>) = 4 [pid 5020] <... close resumed>) = 0 [pid 5018] <... memfd_create resumed>) = 3 [pid 4995] close(3 [pid 5021] close(3 [pid 5020] symlink("/dev/binderfs", "./binderfs" [pid 5018] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5021] <... close resumed>) = 0 [pid 4995] <... close resumed>) = 0 [pid 5020] <... symlink resumed>) = 0 [pid 5021] symlink("/dev/binderfs", "./binderfs" [pid 5018] <... mmap resumed>) = 0x7faaa11e5000 [pid 4995] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5021] <... symlink resumed>) = 0 [pid 5020] memfd_create("syzkaller", 0 [pid 5021] memfd_create("syzkaller", 0) = 3 [pid 5021] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5020] <... memfd_create resumed>) = 3 [pid 5021] <... mmap resumed>) = 0x7faaa11e5000 [pid 5020] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 4995] <... clone resumed>, child_tidptr=0x5555570865d0) = 5022 ./strace-static-x86_64: Process 5022 attached [pid 5020] <... mmap resumed>) = 0x7faaa11e5000 [pid 5022] chdir("./1") = 0 [pid 5022] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5022] setpgid(0, 0) = 0 [pid 5016] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5022] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5022] write(3, "1000", 4) = 4 [pid 5022] close(3) = 0 [pid 5022] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5022] memfd_create("syzkaller", 0) = 3 [pid 5022] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7faaa11e5000 [pid 5021] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5018] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5019] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5020] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5022] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5019] <... write resumed>) = 4194304 [pid 5018] <... write resumed>) = 4194304 [pid 5016] <... write resumed>) = 4194304 [pid 5016] munmap(0x7faaa11e5000, 4194304 [pid 5018] munmap(0x7faaa11e5000, 4194304 [pid 5021] <... write resumed>) = 4194304 [pid 5021] munmap(0x7faaa11e5000, 4194304 [pid 5020] <... write resumed>) = 4194304 [pid 5019] munmap(0x7faaa11e5000, 4194304 [pid 5018] <... munmap resumed>) = 0 [pid 5016] <... munmap resumed>) = 0 [pid 5016] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5021] <... munmap resumed>) = 0 [pid 5020] munmap(0x7faaa11e5000, 4194304 [pid 5018] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5021] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5020] <... munmap resumed>) = 0 [pid 5021] <... openat resumed>) = 4 [pid 5020] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5018] <... openat resumed>) = 4 [pid 5021] ioctl(4, LOOP_SET_FD, 3 [pid 5020] <... openat resumed>) = 4 [pid 5018] ioctl(4, LOOP_SET_FD, 3 [pid 5016] <... openat resumed>) = 4 [pid 5016] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5016] close(3) = 0 [pid 5020] ioctl(4, LOOP_SET_FD, 3 [pid 5016] mkdir("./file0", 0777 [pid 5019] <... munmap resumed>) = 0 [pid 5016] <... mkdir resumed>) = 0 [pid 5016] mount("/dev/loop4", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5019] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5021] <... ioctl resumed>) = 0 [pid 5020] <... ioctl resumed>) = 0 [pid 5022] <... write resumed>) = 4194304 [pid 5021] close(3 [pid 5020] close(3 [pid 5019] <... openat resumed>) = 4 [pid 5018] <... ioctl resumed>) = 0 [pid 5022] munmap(0x7faaa11e5000, 4194304 [pid 5021] <... close resumed>) = 0 [pid 5020] <... close resumed>) = 0 [pid 5022] <... munmap resumed>) = 0 [pid 5021] mkdir("./file0", 0777 [pid 5020] mkdir("./file0", 0777 [pid 5018] close(3 [pid 5022] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5021] <... mkdir resumed>) = 0 [pid 5020] <... mkdir resumed>) = 0 [pid 5018] <... close resumed>) = 0 [pid 5022] <... openat resumed>) = 4 [pid 5021] mount("/dev/loop3", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5020] mount("/dev/loop1", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5018] mkdir("./file0", 0777 [ 74.938571][ T5021] loop3: detected capacity change from 0 to 8192 [ 74.942784][ T5016] loop4: detected capacity change from 0 to 8192 [ 74.945214][ T5018] loop2: detected capacity change from 0 to 8192 [ 74.959056][ T5020] loop1: detected capacity change from 0 to 8192 [ 74.971212][ T5016] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5022] ioctl(4, LOOP_SET_FD, 3 [pid 5018] <... mkdir resumed>) = 0 [pid 5019] ioctl(4, LOOP_SET_FD, 3 [pid 5018] mount("/dev/loop2", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5022] <... ioctl resumed>) = 0 [pid 5022] close(3) = 0 [pid 5022] mkdir("./file0", 0777) = 0 [ 74.978677][ T5022] loop0: detected capacity change from 0 to 8192 [ 74.986358][ T5016] REISERFS (device loop4): found reiserfs format "3.5" with non-standard journal [ 74.997042][ T5021] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 75.000646][ T5019] loop5: detected capacity change from 0 to 8192 [ 75.012763][ T5021] REISERFS (device loop3): found reiserfs format "3.5" with non-standard journal [ 75.020437][ T5020] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 75.028630][ T5016] REISERFS (device loop4): using ordered data mode [ 75.048303][ T5016] reiserfs: using flush barriers [ 75.053328][ T5018] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 75.067641][ T5018] REISERFS (device loop2): found reiserfs format "3.5" with non-standard journal [ 75.068234][ T5021] REISERFS (device loop3): using ordered data mode [pid 5022] mount("/dev/loop0", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5019] <... ioctl resumed>) = 0 [ 75.076850][ T5016] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 75.077246][ T5016] REISERFS (device loop4): checking transaction log (loop4) [ 75.100044][ T5018] REISERFS (device loop2): using ordered data mode [ 75.107433][ T5020] REISERFS (device loop1): found reiserfs format "3.5" with non-standard journal [ 75.114722][ T5018] reiserfs: using flush barriers [ 75.123093][ T5021] reiserfs: using flush barriers [pid 5019] close(3) = 0 [pid 5019] mkdir("./file0", 0777) = 0 [ 75.131501][ T5018] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 75.132762][ T5022] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 75.150100][ T5018] REISERFS (device loop2): checking transaction log (loop2) [ 75.173374][ T5022] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 75.173866][ T5019] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 75.182911][ T5022] REISERFS (device loop0): using ordered data mode [ 75.196314][ T5021] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 75.202304][ T5022] reiserfs: using flush barriers [ 75.219891][ T5018] REISERFS (device loop2): Using tea hash to sort names [ 75.224638][ T5020] REISERFS (device loop1): using ordered data mode [ 75.231789][ T5016] REISERFS (device loop4): Using tea hash to sort names [ 75.237028][ T5022] 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 [ 75.244574][ T5018] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 75.260054][ T5020] reiserfs: using flush barriers [ 75.269914][ T5016] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 75.275794][ T5022] REISERFS (device loop0): checking transaction log (loop0) [ 75.290885][ T5020] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 75.307002][ T5019] REISERFS (device loop5): found reiserfs format "3.5" with non-standard journal [ 75.307861][ T5020] REISERFS (device loop1): checking transaction log (loop1) [ 75.317364][ T5021] REISERFS (device loop3): checking transaction log (loop3) [ 75.331744][ T5022] REISERFS (device loop0): Using tea hash to sort names [pid 5019] mount("/dev/loop5", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5016] <... mount resumed>) = 0 [pid 5016] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5016] chdir("./file0") = 0 [pid 5016] ioctl(4, LOOP_CLR_FD) = 0 [pid 5016] close(4) = 0 [pid 5016] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5016] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0) = 0x20000000 [pid 5016] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5016] exit_group(0) = ? [pid 5016] +++ exited with 0 +++ [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5016, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- [pid 5018] <... mount resumed>) = 0 [pid 5018] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5018] chdir("./file0") = 0 [pid 5018] ioctl(4, LOOP_CLR_FD) = 0 [pid 5018] close(4) = 0 [pid 5018] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5018] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [ 75.331988][ T5019] REISERFS (device loop5): using ordered data mode [ 75.339399][ T5020] REISERFS (device loop1): Using tea hash to sort names [ 75.365435][ T5022] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 75.377657][ T5021] REISERFS (device loop3): Using tea hash to sort names [pid 4999] restart_syscall(<... resuming interrupted clone ...> [pid 5022] <... mount resumed>) = 0 [pid 5018] <... mmap resumed>) = 0x20000000 [pid 4999] <... restart_syscall resumed>) = 0 [pid 5018] ioctl(4, FS_IOC_GETVERSION [pid 5022] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5018] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5022] <... openat resumed>) = 3 [pid 5018] exit_group(0 [pid 5022] chdir("./file0" [pid 5018] <... exit_group resumed>) = ? [pid 5022] <... chdir resumed>) = 0 [pid 5018] +++ exited with 0 +++ [pid 5022] ioctl(4, LOOP_CLR_FD [pid 4999] umount2("./1", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5022] <... ioctl resumed>) = 0 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4997] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5018, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- [pid 5022] close(4 [pid 4999] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4997] restart_syscall(<... resuming interrupted clone ...> [pid 5022] <... close resumed>) = 0 [pid 5021] <... mount resumed>) = 0 [pid 4997] <... restart_syscall resumed>) = 0 [pid 5022] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4999] <... openat resumed>) = 3 [pid 5021] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5022] <... openat resumed>) = 4 [pid 4999] fstat(3, [pid 5022] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 4999] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4997] umount2("./1", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5022] <... mmap resumed>) = 0x20000000 [pid 5021] <... openat resumed>) = 3 [pid 4997] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] getdents64(3, [pid 5022] ioctl(4, FS_IOC_GETVERSION [pid 4997] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4999] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 5022] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5021] chdir("./file0" [pid 4999] umount2("./1/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4997] <... openat resumed>) = 3 [pid 5021] <... chdir resumed>) = 0 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4997] fstat(3, [pid 5022] exit_group(0 [pid 4999] lstat("./1/binderfs", [pid 4997] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5022] <... exit_group resumed>) = ? [pid 4999] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4997] getdents64(3, [pid 5021] ioctl(4, LOOP_CLR_FD) = 0 [pid 4999] unlink("./1/binderfs" [pid 4997] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 5022] +++ exited with 0 +++ [pid 5021] close(4 [pid 4999] <... unlink resumed>) = 0 [pid 4997] umount2("./1/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5021] <... close resumed>) = 0 [pid 4999] umount2("./1/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4997] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5021] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4997] lstat("./1/binderfs", [pid 5021] <... openat resumed>) = 4 [pid 5021] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 4997] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4995] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5022, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=14 /* 0.14 s */} --- [pid 5021] <... mmap resumed>) = 0x20000000 [pid 4995] umount2("./1", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5021] ioctl(4, FS_IOC_GETVERSION [pid 4997] unlink("./1/binderfs" [pid 4995] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5021] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5021] exit_group(0 [pid 4997] <... unlink resumed>) = 0 [pid 4995] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5021] <... exit_group resumed>) = ? [pid 5021] +++ exited with 0 +++ [pid 4997] umount2("./1/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4995] <... openat resumed>) = 3 [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5021, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=16 /* 0.16 s */} --- [pid 4995] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] umount2("./1", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4995] getdents64(3, [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4995] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [ 75.385798][ T5021] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 75.395388][ T5019] reiserfs: using flush barriers [ 75.401960][ T5019] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 75.412158][ T5020] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [pid 5020] <... mount resumed>) = 0 [pid 4998] <... openat resumed>) = 3 [pid 4995] umount2("./1/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5020] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 4998] fstat(3, [pid 4995] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5020] <... openat resumed>) = 3 [pid 4998] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4995] lstat("./1/binderfs", [pid 4998] getdents64(3, [pid 4995] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4998] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 4995] unlink("./1/binderfs" [pid 5020] chdir("./file0" [pid 4998] umount2("./1/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4995] <... unlink resumed>) = 0 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./1/binderfs", [pid 4995] umount2("./1/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5020] <... chdir resumed>) = 0 [pid 4998] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5020] ioctl(4, LOOP_CLR_FD [pid 4998] unlink("./1/binderfs" [pid 5020] <... ioctl resumed>) = 0 [pid 4998] <... unlink resumed>) = 0 [pid 5020] close(4 [pid 4998] umount2("./1/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5020] <... close resumed>) = 0 [pid 5020] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5020] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0) = 0x20000000 [pid 5020] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5020] exit_group(0) = ? [pid 5020] +++ exited with 0 +++ [pid 4996] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5020, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=16 /* 0.16 s */} --- [pid 4996] umount2("./1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4996] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 4996] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4996] getdents64(3, 0x555557087620 /* 4 entries */, 32768) = 112 [pid 4996] umount2("./1/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4996] lstat("./1/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4996] unlink("./1/binderfs") = 0 [ 75.478491][ T5019] REISERFS (device loop5): checking transaction log (loop5) [ 75.509064][ T5019] REISERFS (device loop5): Using tea hash to sort names [pid 4996] umount2("./1/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5019] <... mount resumed>) = 0 [pid 5019] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5019] chdir("./file0") = 0 [pid 5019] ioctl(4, LOOP_CLR_FD) = 0 [pid 5019] close(4) = 0 [pid 5019] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5019] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0) = 0x20000000 [ 75.540335][ T5019] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 5019] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5019] exit_group(0) = ? [pid 4997] <... umount2 resumed>) = 0 [pid 5019] +++ exited with 0 +++ [pid 4997] umount2("./1/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5019, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- [pid 4997] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4997] lstat("./1/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4997] umount2("./1/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] umount2("./1", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4997] openat(AT_FDCWD, "./1/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4997] <... openat resumed>) = 4 [pid 5000] <... openat resumed>) = 3 [pid 4997] fstat(4, [pid 5000] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4997] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] getdents64(3, 0x555557087620 /* 4 entries */, 32768) = 112 [pid 4997] getdents64(4, [pid 5000] umount2("./1/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4997] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 5000] lstat("./1/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4997] getdents64(4, [pid 5000] unlink("./1/binderfs" [pid 4997] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 5000] <... unlink resumed>) = 0 [pid 4997] close(4 [pid 5000] umount2("./1/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4997] <... close resumed>) = 0 [pid 4997] rmdir("./1/file0") = 0 [pid 4997] getdents64(3, 0x555557087620 /* 0 entries */, 32768) = 0 [pid 4997] close(3) = 0 [pid 4997] rmdir("./1") = 0 [pid 4995] <... umount2 resumed>) = 0 [pid 4997] mkdir("./2", 0777) = 0 [pid 4997] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 4997] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 4997] close(3) = 0 [pid 4997] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570865d0) = 5029 ./strace-static-x86_64: Process 5029 attached [pid 5029] chdir("./2") = 0 [pid 5029] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5029] setpgid(0, 0) = 0 [pid 5029] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4999] <... umount2 resumed>) = 0 [pid 5029] <... openat resumed>) = 3 [pid 4995] umount2("./1/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5029] write(3, "1000", 4 [pid 4998] <... umount2 resumed>) = 0 [pid 4999] umount2("./1/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4995] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] umount2("./1/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4995] lstat("./1/file0", [pid 4999] lstat("./1/file0", [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4995] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] lstat("./1/file0", [pid 4999] umount2("./1/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4995] umount2("./1/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] openat(AT_FDCWD, "./1/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4995] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] umount2("./1/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] <... openat resumed>) = 4 [pid 4995] openat(AT_FDCWD, "./1/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4999] fstat(4, [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4995] <... openat resumed>) = 4 [pid 5029] <... write resumed>) = 4 [pid 4999] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] openat(AT_FDCWD, "./1/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4996] <... umount2 resumed>) = 0 [pid 5029] close(3) = 0 [pid 4996] umount2("./1/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5029] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4996] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5029] memfd_create("syzkaller", 0 [pid 4996] lstat("./1/file0", [pid 5029] <... memfd_create resumed>) = 3 [pid 4999] getdents64(4, [pid 4998] <... openat resumed>) = 4 [pid 4995] fstat(4, [pid 5029] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 4999] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4998] fstat(4, [pid 4996] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4995] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5029] <... mmap resumed>) = 0x7faaa11e5000 [pid 5000] <... umount2 resumed>) = 0 [pid 4999] getdents64(4, [pid 4998] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4996] umount2("./1/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4995] getdents64(4, [pid 5000] umount2("./1/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4998] getdents64(4, [pid 4995] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] close(4 [pid 4998] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4995] getdents64(4, [pid 5000] lstat("./1/file0", [pid 4999] <... close resumed>) = 0 [pid 4998] getdents64(4, [pid 4995] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 5000] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] rmdir("./1/file0" [pid 4998] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4995] close(4 [pid 5000] umount2("./1/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] <... rmdir resumed>) = 0 [pid 4998] close(4 [pid 4995] <... close resumed>) = 0 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] getdents64(3, [pid 4998] <... close resumed>) = 0 [pid 4995] rmdir("./1/file0" [pid 5000] openat(AT_FDCWD, "./1/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4999] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 4998] rmdir("./1/file0" [pid 4995] <... rmdir resumed>) = 0 [pid 5000] <... openat resumed>) = 4 [pid 4999] close(3 [pid 4998] <... rmdir resumed>) = 0 [pid 4995] getdents64(3, [pid 5000] fstat(4, [pid 4999] <... close resumed>) = 0 [pid 4998] getdents64(3, [pid 4995] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 5000] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] rmdir("./1" [pid 4998] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 4995] close(3 [pid 5000] getdents64(4, [pid 4999] <... rmdir resumed>) = 0 [pid 4998] close(3 [pid 4995] <... close resumed>) = 0 [pid 5000] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4999] mkdir("./2", 0777 [pid 4998] <... close resumed>) = 0 [pid 4995] rmdir("./1" [pid 5000] getdents64(4, [pid 4999] <... mkdir resumed>) = 0 [pid 4998] rmdir("./1" [pid 4995] <... rmdir resumed>) = 0 [pid 5000] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4999] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4998] <... rmdir resumed>) = 0 [pid 4996] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4995] mkdir("./2", 0777 [pid 5000] close(4 [pid 4999] <... openat resumed>) = 3 [pid 4998] mkdir("./2", 0777 [pid 4996] openat(AT_FDCWD, "./1/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4995] <... mkdir resumed>) = 0 [pid 5000] <... close resumed>) = 0 [pid 4999] ioctl(3, LOOP_CLR_FD [pid 4998] <... mkdir resumed>) = 0 [pid 4995] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4996] <... openat resumed>) = 4 [pid 5000] rmdir("./1/file0" [pid 4999] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4998] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4996] fstat(4, [pid 4995] <... openat resumed>) = 3 [pid 5000] <... rmdir resumed>) = 0 [pid 4999] close(3 [pid 4998] <... openat resumed>) = 3 [pid 4995] ioctl(3, LOOP_CLR_FD [pid 5000] getdents64(3, [pid 4999] <... close resumed>) = 0 [pid 4998] ioctl(3, LOOP_CLR_FD [pid 4996] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4995] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5000] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 4999] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4998] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4996] getdents64(4, [pid 4995] close(3 [pid 5000] close(3 [pid 4998] close(3 [pid 4996] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4995] <... close resumed>) = 0 [pid 5000] <... close resumed>) = 0 [pid 4999] <... clone resumed>, child_tidptr=0x5555570865d0) = 5030 [pid 4998] <... close resumed>) = 0 [pid 4996] getdents64(4, [pid 4995] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5000] rmdir("./1" [pid 4998] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4996] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 5000] <... rmdir resumed>) = 0 [pid 4995] <... clone resumed>, child_tidptr=0x5555570865d0) = 5031 [pid 5000] mkdir("./2", 0777 [pid 4998] <... clone resumed>, child_tidptr=0x5555570865d0) = 5032 [pid 5000] <... mkdir resumed>) = 0 [pid 5000] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5000] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5000] close(3) = 0 [pid 5000] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570865d0) = 5033 [pid 4996] close(4./strace-static-x86_64: Process 5031 attached ) = 0 [pid 5031] chdir("./2"./strace-static-x86_64: Process 5030 attached ) = 0 [pid 4996] rmdir("./1/file0" [pid 5031] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5030] chdir("./2" [pid 4996] <... rmdir resumed>) = 0 ./strace-static-x86_64: Process 5033 attached [pid 5031] <... prctl resumed>) = 0 [pid 5030] <... chdir resumed>) = 0 [pid 4996] getdents64(3, [pid 5033] chdir("./2" [pid 5031] setpgid(0, 0 [pid 5030] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4996] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 5032 attached [pid 5033] <... chdir resumed>) = 0 [pid 5031] <... setpgid resumed>) = 0 [pid 5030] <... prctl resumed>) = 0 [pid 4996] close(3 [pid 5033] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5031] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5030] setpgid(0, 0 [pid 4996] <... close resumed>) = 0 [pid 5033] <... prctl resumed>) = 0 [pid 5032] chdir("./2" [pid 5031] <... openat resumed>) = 3 [pid 5030] <... setpgid resumed>) = 0 [pid 4996] rmdir("./1" [pid 5033] setpgid(0, 0 [pid 5032] <... chdir resumed>) = 0 [pid 5031] write(3, "1000", 4 [pid 5030] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5033] <... setpgid resumed>) = 0 [pid 5032] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5031] <... write resumed>) = 4 [pid 5030] <... openat resumed>) = 3 [pid 4996] <... rmdir resumed>) = 0 [pid 5033] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5032] <... prctl resumed>) = 0 [pid 5031] close(3 [pid 5030] write(3, "1000", 4 [pid 4996] mkdir("./2", 0777 [pid 5033] <... openat resumed>) = 3 [pid 5031] <... close resumed>) = 0 [pid 5030] <... write resumed>) = 4 [pid 5033] write(3, "1000", 4 [pid 5031] symlink("/dev/binderfs", "./binderfs" [pid 5030] close(3 [pid 5033] <... write resumed>) = 4 [pid 5032] setpgid(0, 0 [pid 5031] <... symlink resumed>) = 0 [pid 5030] <... close resumed>) = 0 [pid 4996] <... mkdir resumed>) = 0 [pid 5033] close(3 [pid 5032] <... setpgid resumed>) = 0 [pid 5031] memfd_create("syzkaller", 0 [pid 5030] symlink("/dev/binderfs", "./binderfs" [pid 4996] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5033] <... close resumed>) = 0 [pid 5031] <... memfd_create resumed>) = 3 [pid 5030] <... symlink resumed>) = 0 [pid 4996] <... openat resumed>) = 3 [pid 5033] symlink("/dev/binderfs", "./binderfs" [pid 5032] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5031] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5030] memfd_create("syzkaller", 0 [pid 4996] ioctl(3, LOOP_CLR_FD [pid 5033] <... symlink resumed>) = 0 [pid 5032] <... openat resumed>) = 3 [pid 5031] <... mmap resumed>) = 0x7faaa11e5000 [pid 5030] <... memfd_create resumed>) = 3 [pid 4996] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5033] memfd_create("syzkaller", 0 [pid 5032] write(3, "1000", 4 [pid 5030] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 4996] close(3 [pid 5033] <... memfd_create resumed>) = 3 [pid 5032] <... write resumed>) = 4 [pid 5030] <... mmap resumed>) = 0x7faaa11e5000 [pid 5033] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5032] close(3 [pid 4996] <... close resumed>) = 0 [pid 5033] <... mmap resumed>) = 0x7faaa11e5000 [pid 5032] <... close resumed>) = 0 [pid 4996] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5032] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4996] <... clone resumed>, child_tidptr=0x5555570865d0) = 5034 [pid 5032] memfd_create("syzkaller", 0) = 3 [pid 5032] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0./strace-static-x86_64: Process 5034 attached ) = 0x7faaa11e5000 [pid 5034] chdir("./2" [pid 5029] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5034] <... chdir resumed>) = 0 [pid 5034] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5034] setpgid(0, 0) = 0 [pid 5034] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5034] write(3, "1000", 4) = 4 [pid 5034] close(3) = 0 [pid 5034] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5034] memfd_create("syzkaller", 0) = 3 [pid 5034] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7faaa11e5000 [pid 5033] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5030] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5031] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5032] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5034] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5030] <... write resumed>) = 4194304 [pid 5029] <... write resumed>) = 4194304 [pid 5029] munmap(0x7faaa11e5000, 4194304) = 0 [pid 5033] <... write resumed>) = 4194304 [pid 5030] munmap(0x7faaa11e5000, 4194304 [pid 5031] <... write resumed>) = 4194304 [pid 5030] <... munmap resumed>) = 0 [pid 5029] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5033] munmap(0x7faaa11e5000, 4194304 [pid 5031] munmap(0x7faaa11e5000, 4194304 [pid 5033] <... munmap resumed>) = 0 [pid 5031] <... munmap resumed>) = 0 [pid 5029] <... openat resumed>) = 4 [pid 5029] ioctl(4, LOOP_SET_FD, 3 [pid 5030] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5033] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5030] <... openat resumed>) = 4 [pid 5033] <... openat resumed>) = 4 [pid 5031] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5030] ioctl(4, LOOP_SET_FD, 3 [pid 5033] ioctl(4, LOOP_SET_FD, 3 [pid 5031] <... openat resumed>) = 4 [pid 5031] ioctl(4, LOOP_SET_FD, 3 [pid 5030] <... ioctl resumed>) = 0 [pid 5030] close(3) = 0 [pid 5030] mkdir("./file0", 0777 [pid 5031] <... ioctl resumed>) = 0 [pid 5029] <... ioctl resumed>) = 0 [pid 5033] <... ioctl resumed>) = 0 [pid 5031] close(3 [pid 5033] close(3 [pid 5031] <... close resumed>) = 0 [pid 5030] <... mkdir resumed>) = 0 [pid 5033] <... close resumed>) = 0 [pid 5031] mkdir("./file0", 0777 [pid 5030] mount("/dev/loop4", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5033] mkdir("./file0", 0777 [pid 5031] <... mkdir resumed>) = 0 [pid 5033] <... mkdir resumed>) = 0 [pid 5031] mount("/dev/loop0", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5033] mount("/dev/loop5", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5029] close(3) = 0 [ 76.073445][ T5030] loop4: detected capacity change from 0 to 8192 [ 76.073891][ T5029] loop2: detected capacity change from 0 to 8192 [ 76.080874][ T5033] loop5: detected capacity change from 0 to 8192 [ 76.104250][ T5031] loop0: detected capacity change from 0 to 8192 [pid 5029] mkdir("./file0", 0777) = 0 [pid 5034] <... write resumed>) = 4194304 [pid 5032] <... write resumed>) = 4194304 [pid 5034] munmap(0x7faaa11e5000, 4194304 [pid 5032] munmap(0x7faaa11e5000, 4194304 [ 76.137971][ T5030] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 76.152317][ T5033] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 76.157711][ T5030] REISERFS (device loop4): found reiserfs format "3.5" with non-standard journal [ 76.167843][ T5033] REISERFS (device loop5): found reiserfs format "3.5" with non-standard journal [pid 5029] mount("/dev/loop2", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5034] <... munmap resumed>) = 0 [pid 5032] <... munmap resumed>) = 0 [pid 5034] openat(AT_FDCWD, "/dev/loop1", O_RDWR [ 76.176241][ T5030] REISERFS (device loop4): using ordered data mode [ 76.186260][ T5033] REISERFS (device loop5): using ordered data mode [ 76.196414][ T5029] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 76.197546][ T5031] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 76.222930][ T5030] reiserfs: using flush barriers [pid 5032] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5034] <... openat resumed>) = 4 [pid 5032] <... openat resumed>) = 4 [pid 5034] ioctl(4, LOOP_SET_FD, 3 [pid 5032] ioctl(4, LOOP_SET_FD, 3 [pid 5034] <... ioctl resumed>) = 0 [pid 5034] close(3) = 0 [pid 5034] mkdir("./file0", 0777) = 0 [pid 5030] <... mount resumed>) = 0 [ 76.224260][ T5030] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 76.230030][ T5033] reiserfs: using flush barriers [ 76.244778][ T5030] REISERFS (device loop4): checking transaction log (loop4) [ 76.251972][ T5034] loop1: detected capacity change from 0 to 8192 [ 76.257954][ T5030] REISERFS (device loop4): Using tea hash to sort names [ 76.263283][ T5032] loop3: detected capacity change from 0 to 8192 [ 76.270311][ T5030] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [pid 5030] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5034] mount("/dev/loop1", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5030] <... openat resumed>) = 3 [ 76.286800][ T5031] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 76.296519][ T5031] REISERFS (device loop0): using ordered data mode [ 76.301801][ T5029] REISERFS (device loop2): found reiserfs format "3.5" with non-standard journal [ 76.303620][ T5031] reiserfs: using flush barriers [ 76.318255][ T5034] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5030] chdir("./file0" [pid 5032] <... ioctl resumed>) = 0 [pid 5032] close(3) = 0 [pid 5032] mkdir("./file0", 0777 [pid 5030] <... chdir resumed>) = 0 [pid 5032] <... mkdir resumed>) = 0 [pid 5030] ioctl(4, LOOP_CLR_FD [pid 5032] mount("/dev/loop3", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5030] <... ioctl resumed>) = 0 [pid 5030] close(4) = 0 [pid 5030] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5030] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0) = 0x20000000 [ 76.331242][ T5033] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 76.331632][ T5033] REISERFS (device loop5): checking transaction log (loop5) [ 76.355783][ T5034] REISERFS (device loop1): found reiserfs format "3.5" with non-standard journal [ 76.366232][ T5034] REISERFS (device loop1): using ordered data mode [ 76.372795][ T5034] reiserfs: using flush barriers [ 76.378696][ T5033] REISERFS (device loop5): Using tea hash to sort names [pid 5030] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5030] exit_group(0) = ? [ 76.383459][ T5032] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 76.387140][ T5034] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 76.405322][ T5031] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5030] +++ exited with 0 +++ [ 76.415753][ T5033] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 76.431919][ T5031] REISERFS (device loop0): checking transaction log (loop0) [ 76.440863][ T5029] REISERFS (device loop2): using ordered data mode [ 76.450341][ T5034] REISERFS (device loop1): checking transaction log (loop1) [ 76.460428][ T5031] REISERFS (device loop0): Using tea hash to sort names [ 76.461956][ T5032] REISERFS (device loop3): found reiserfs format "3.5" with non-standard journal [ 76.469761][ T5034] REISERFS (device loop1): Using tea hash to sort names [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5030, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} --- [pid 4999] umount2("./2", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 76.477784][ T5032] REISERFS (device loop3): using ordered data mode [ 76.491430][ T5032] reiserfs: using flush barriers [ 76.498027][ T5032] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 76.498272][ T5029] reiserfs: using flush barriers [ 76.515934][ T5034] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [pid 4999] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5033] <... mount resumed>) = 0 [pid 4999] <... openat resumed>) = 3 [pid 4999] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] getdents64(3, [pid 5033] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 4999] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 4999] umount2("./2/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] lstat("./2/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4999] unlink("./2/binderfs") = 0 [pid 4999] umount2("./2/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5033] <... openat resumed>) = 3 [pid 5033] chdir("./file0" [pid 5029] <... mount resumed>) = 0 [pid 5033] <... chdir resumed>) = 0 [ 76.520519][ T5029] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 76.529179][ T5031] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 76.544767][ T5029] REISERFS (device loop2): checking transaction log (loop2) [ 76.562004][ T5029] REISERFS (device loop2): Using tea hash to sort names [ 76.570213][ T5029] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 76.581552][ T5032] REISERFS (device loop3): checking transaction log (loop3) [pid 5034] <... mount resumed>) = 0 [pid 5033] ioctl(4, LOOP_CLR_FD [pid 5031] <... mount resumed>) = 0 [pid 5029] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5033] <... ioctl resumed>) = 0 [pid 5029] <... openat resumed>) = 3 [pid 5033] close(4 [pid 5029] chdir("./file0" [pid 5033] <... close resumed>) = 0 [pid 5029] <... chdir resumed>) = 0 [pid 5033] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5029] ioctl(4, LOOP_CLR_FD [pid 5033] <... openat resumed>) = 4 [pid 5029] <... ioctl resumed>) = 0 [pid 5033] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 5029] close(4 [pid 5033] <... mmap resumed>) = 0x20000000 [pid 5029] <... close resumed>) = 0 [pid 5033] ioctl(4, FS_IOC_GETVERSION [pid 5029] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5033] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5029] <... openat resumed>) = 4 [pid 5033] exit_group(0 [pid 5029] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 5033] <... exit_group resumed>) = ? [pid 5029] <... mmap resumed>) = 0x20000000 [pid 5033] +++ exited with 0 +++ [pid 5029] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5029] exit_group(0) = ? [pid 5029] +++ exited with 0 +++ [pid 5031] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5031] chdir("./file0") = 0 [pid 5031] ioctl(4, LOOP_CLR_FD) = 0 [pid 5034] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5031] close(4 [pid 5034] <... openat resumed>) = 3 [pid 5031] <... close resumed>) = 0 [pid 5031] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5034] chdir("./file0") = 0 [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5033, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=17 /* 0.17 s */} --- [pid 5034] ioctl(4, LOOP_CLR_FD) = 0 [pid 5034] close(4) = 0 [pid 5031] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 5000] umount2("./2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4997] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5029, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=20 /* 0.20 s */} --- [pid 5034] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5031] <... mmap resumed>) = 0x20000000 [pid 5034] <... openat resumed>) = 4 [pid 5031] ioctl(4, FS_IOC_GETVERSION [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5034] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 5031] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5034] <... mmap resumed>) = 0x20000000 [pid 5031] exit_group(0 [pid 5034] ioctl(4, FS_IOC_GETVERSION [pid 5031] <... exit_group resumed>) = ? [pid 5034] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5031] +++ exited with 0 +++ [pid 5034] exit_group(0) = ? [pid 5034] +++ exited with 0 +++ [pid 5000] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4997] umount2("./2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4996] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5034, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=15 /* 0.15 s */} --- [pid 4995] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5031, si_uid=0, si_status=0, si_utime=0, si_stime=21 /* 0.21 s */} --- [pid 5032] <... mount resumed>) = 0 [pid 5000] <... openat resumed>) = 3 [pid 4997] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4997] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5000] getdents64(3, [pid 5032] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5000] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 4997] <... openat resumed>) = 3 [pid 5000] umount2("./2/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4997] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4997] getdents64(3, [pid 5000] lstat("./2/binderfs", [pid 4995] umount2("./2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4997] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 5000] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4996] umount2("./2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4995] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] unlink("./2/binderfs" [pid 4997] umount2("./2/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4996] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4995] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5032] <... openat resumed>) = 3 [pid 5000] <... unlink resumed>) = 0 [pid 4997] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4996] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4995] <... openat resumed>) = 3 [pid 5000] umount2("./2/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4997] lstat("./2/binderfs", [pid 4996] <... openat resumed>) = 3 [pid 4995] fstat(3, [pid 4997] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4995] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4995] getdents64(3, [pid 4997] unlink("./2/binderfs" [pid 4996] fstat(3, [pid 4997] <... unlink resumed>) = 0 [pid 4996] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4995] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 4996] getdents64(3, 0x555557087620 /* 4 entries */, 32768) = 112 [pid 5032] chdir("./file0" [pid 4997] umount2("./2/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4996] umount2("./2/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4995] umount2("./2/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4996] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4995] lstat("./2/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4996] lstat("./2/binderfs", [pid 5032] <... chdir resumed>) = 0 [pid 4996] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4995] unlink("./2/binderfs" [pid 5032] ioctl(4, LOOP_CLR_FD [pid 4995] <... unlink resumed>) = 0 [pid 4996] unlink("./2/binderfs" [pid 5032] <... ioctl resumed>) = 0 [pid 4995] umount2("./2/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4996] <... unlink resumed>) = 0 [pid 5032] close(4) = 0 [pid 4996] umount2("./2/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5032] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5032] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0) = 0x20000000 [pid 4999] <... umount2 resumed>) = 0 [pid 4999] umount2("./2/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] lstat("./2/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] umount2("./2/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./2/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 4999] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] getdents64(4, 0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4999] getdents64(4, 0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4999] close(4) = 0 [pid 4999] rmdir("./2/file0" [pid 5032] ioctl(4, FS_IOC_GETVERSION [pid 4999] <... rmdir resumed>) = 0 [pid 4999] getdents64(3, 0x555557087620 /* 0 entries */, 32768) = 0 [pid 4999] close(3) = 0 [pid 4999] rmdir("./2" [pid 5032] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5032] exit_group(0 [pid 4999] <... rmdir resumed>) = 0 [pid 4999] mkdir("./3", 0777 [pid 5032] <... exit_group resumed>) = ? [pid 4999] <... mkdir resumed>) = 0 [pid 4999] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 4999] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 4999] close(3) = 0 [pid 4999] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570865d0) = 5042 ./strace-static-x86_64: Process 5042 attached [pid 5042] chdir("./3" [pid 5032] +++ exited with 0 +++ [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5032, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} --- [pid 5042] <... chdir resumed>) = 0 [pid 5042] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5042] setpgid(0, 0) = 0 [pid 4998] umount2("./2", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 76.590500][ T5032] REISERFS (device loop3): Using tea hash to sort names [ 76.610207][ T5032] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [pid 5042] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4998] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5042] <... openat resumed>) = 3 [pid 5042] write(3, "1000", 4) = 4 [pid 4998] <... openat resumed>) = 3 [pid 5042] close(3 [pid 4998] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5042] <... close resumed>) = 0 [pid 5042] symlink("/dev/binderfs", "./binderfs" [pid 4998] getdents64(3, 0x555557087620 /* 4 entries */, 32768) = 112 [pid 4998] umount2("./2/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5042] <... symlink resumed>) = 0 [pid 5042] memfd_create("syzkaller", 0) = 3 [pid 5042] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 4998] lstat("./2/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5042] <... mmap resumed>) = 0x7faaa11e5000 [pid 4998] unlink("./2/binderfs") = 0 [pid 4998] umount2("./2/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5042] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5000] <... umount2 resumed>) = 0 [pid 4997] <... umount2 resumed>) = 0 [pid 5000] umount2("./2/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4997] umount2("./2/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4997] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./2/file0", [pid 4997] lstat("./2/file0", [pid 5000] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4997] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] umount2("./2/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4997] umount2("./2/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] openat(AT_FDCWD, "./2/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4997] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] <... openat resumed>) = 4 [pid 4997] openat(AT_FDCWD, "./2/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5000] fstat(4, [pid 4997] <... openat resumed>) = 4 [pid 5000] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4997] fstat(4, [pid 5000] getdents64(4, 0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4997] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] getdents64(4, [pid 4997] getdents64(4, [pid 5000] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 5000] close(4 [pid 4997] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 5000] <... close resumed>) = 0 [pid 4997] getdents64(4, [pid 5000] rmdir("./2/file0" [pid 4997] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 5000] <... rmdir resumed>) = 0 [pid 4997] close(4 [pid 5000] getdents64(3, [pid 4997] <... close resumed>) = 0 [pid 5000] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 4997] rmdir("./2/file0" [pid 5000] close(3 [pid 4997] <... rmdir resumed>) = 0 [pid 5000] <... close resumed>) = 0 [pid 4997] getdents64(3, [pid 5000] rmdir("./2" [pid 4997] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 5000] <... rmdir resumed>) = 0 [pid 4997] close(3 [pid 5000] mkdir("./3", 0777 [pid 4997] <... close resumed>) = 0 [pid 5000] <... mkdir resumed>) = 0 [pid 4997] rmdir("./2" [pid 5000] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 4997] <... rmdir resumed>) = 0 [pid 5000] ioctl(3, LOOP_CLR_FD [pid 4997] mkdir("./3", 0777 [pid 5000] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5000] close(3 [pid 4997] <... mkdir resumed>) = 0 [pid 5000] <... close resumed>) = 0 [pid 4997] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5000] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4997] <... openat resumed>) = 3 [pid 4997] ioctl(3, LOOP_CLR_FD [pid 5000] <... clone resumed>, child_tidptr=0x5555570865d0) = 5043 [pid 4997] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4997] close(3) = 0 [pid 4997] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570865d0) = 5044 ./strace-static-x86_64: Process 5043 attached ./strace-static-x86_64: Process 5044 attached [pid 4996] <... umount2 resumed>) = 0 [pid 4995] <... umount2 resumed>) = 0 [pid 5043] chdir("./3" [pid 5044] chdir("./3" [pid 5043] <... chdir resumed>) = 0 [pid 5044] <... chdir resumed>) = 0 [pid 5043] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5042] <... write resumed>) = 4194304 [pid 4995] umount2("./2/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5043] <... prctl resumed>) = 0 [pid 5042] munmap(0x7faaa11e5000, 4194304 [pid 5044] <... prctl resumed>) = 0 [pid 5043] setpgid(0, 0 [pid 4996] umount2("./2/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4996] lstat("./2/file0", [pid 5042] <... munmap resumed>) = 0 [pid 5044] setpgid(0, 0 [pid 5043] <... setpgid resumed>) = 0 [pid 5042] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5044] <... setpgid resumed>) = 0 [pid 4995] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5044] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5043] <... openat resumed>) = 3 [pid 5044] <... openat resumed>) = 3 [pid 5043] write(3, "1000", 4 [pid 5044] write(3, "1000", 4 [pid 5043] <... write resumed>) = 4 [pid 5042] <... openat resumed>) = 4 [pid 4995] lstat("./2/file0", [pid 5044] <... write resumed>) = 4 [pid 5043] close(3 [pid 5042] ioctl(4, LOOP_SET_FD, 3 [pid 5044] close(3 [pid 5043] <... close resumed>) = 0 [pid 4996] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4996] umount2("./2/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4996] openat(AT_FDCWD, "./2/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 4996] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4996] getdents64(4, [pid 5044] <... close resumed>) = 0 [pid 5043] symlink("/dev/binderfs", "./binderfs" [pid 4995] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5044] symlink("/dev/binderfs", "./binderfs" [pid 5043] <... symlink resumed>) = 0 [pid 5044] <... symlink resumed>) = 0 [pid 5043] memfd_create("syzkaller", 0 [pid 4996] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 5044] memfd_create("syzkaller", 0 [pid 5043] <... memfd_create resumed>) = 3 [pid 5044] <... memfd_create resumed>) = 3 [pid 5043] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 4995] umount2("./2/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5043] <... mmap resumed>) = 0x7faaa11e5000 [pid 5044] <... mmap resumed>) = 0x7faaa11e5000 [pid 4998] <... umount2 resumed>) = 0 [pid 4996] getdents64(4, 0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4996] close(4) = 0 [pid 4996] rmdir("./2/file0") = 0 [pid 4996] getdents64(3, 0x555557087620 /* 0 entries */, 32768) = 0 [pid 4996] close(3) = 0 [pid 4996] rmdir("./2" [pid 4995] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4996] <... rmdir resumed>) = 0 [pid 4995] openat(AT_FDCWD, "./2/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4996] mkdir("./3", 0777) = 0 [pid 4995] <... openat resumed>) = 4 [pid 4998] umount2("./2/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4995] fstat(4, [pid 5042] <... ioctl resumed>) = 0 [pid 4996] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5042] close(3 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4995] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5042] <... close resumed>) = 0 [pid 4996] <... openat resumed>) = 3 [pid 4995] getdents64(4, [pid 5042] mkdir("./file0", 0777 [pid 4998] lstat("./2/file0", [pid 4996] ioctl(3, LOOP_CLR_FD [pid 4995] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 5042] <... mkdir resumed>) = 0 [pid 4995] getdents64(4, [pid 5042] mount("/dev/loop4", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 4998] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4996] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4995] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4998] umount2("./2/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4996] close(3 [pid 4995] close(4 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4996] <... close resumed>) = 0 [pid 4995] <... close resumed>) = 0 [pid 4998] openat(AT_FDCWD, "./2/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4996] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4995] rmdir("./2/file0" [pid 4998] <... openat resumed>) = 4 [pid 4998] fstat(4, [pid 4996] <... clone resumed>, child_tidptr=0x5555570865d0) = 5046 [ 76.843921][ T5042] loop4: detected capacity change from 0 to 8192 [pid 4995] <... rmdir resumed>) = 0 [pid 4998] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4995] getdents64(3, [pid 4998] getdents64(4, 0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4995] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 4998] getdents64(4, [pid 4995] close(3 [pid 4998] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4998] close(4 [pid 4995] <... close resumed>) = 0 ./strace-static-x86_64: Process 5046 attached [pid 4998] <... close resumed>) = 0 [pid 4995] rmdir("./2" [pid 5046] chdir("./3" [pid 4998] rmdir("./2/file0" [pid 5046] <... chdir resumed>) = 0 [pid 4998] <... rmdir resumed>) = 0 [pid 4995] <... rmdir resumed>) = 0 [pid 5046] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4998] getdents64(3, [pid 4995] mkdir("./3", 0777 [pid 5046] <... prctl resumed>) = 0 [pid 4998] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 5046] setpgid(0, 0 [pid 4998] close(3 [pid 5046] <... setpgid resumed>) = 0 [pid 4998] <... close resumed>) = 0 [pid 4995] <... mkdir resumed>) = 0 [pid 5046] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4998] rmdir("./2" [pid 4995] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5046] <... openat resumed>) = 3 [pid 4998] <... rmdir resumed>) = 0 [pid 5046] write(3, "1000", 4 [pid 4998] mkdir("./3", 0777 [pid 4995] <... openat resumed>) = 3 [pid 5046] <... write resumed>) = 4 [pid 4998] <... mkdir resumed>) = 0 [pid 4995] ioctl(3, LOOP_CLR_FD [pid 5046] close(3 [pid 4998] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4995] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5046] <... close resumed>) = 0 [pid 4998] <... openat resumed>) = 3 [pid 4995] close(3 [pid 5046] symlink("/dev/binderfs", "./binderfs" [pid 4998] ioctl(3, LOOP_CLR_FD [pid 5046] <... symlink resumed>) = 0 [pid 4998] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4995] <... close resumed>) = 0 [pid 5046] memfd_create("syzkaller", 0 [pid 4998] close(3 [pid 4995] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5046] <... memfd_create resumed>) = 3 [pid 4998] <... close resumed>) = 0 [pid 5046] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 4998] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5047 attached [pid 5046] <... mmap resumed>) = 0x7faaa11e5000 [pid 5043] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5047] chdir("./3" [pid 5044] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 4998] <... clone resumed>, child_tidptr=0x5555570865d0) = 5048 [pid 4995] <... clone resumed>, child_tidptr=0x5555570865d0) = 5047 [pid 5047] <... chdir resumed>) = 0 [ 76.884713][ T5042] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5047] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5047] setpgid(0, 0./strace-static-x86_64: Process 5048 attached ) = 0 [pid 5048] chdir("./3" [pid 5047] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5048] <... chdir resumed>) = 0 [pid 5048] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5047] <... openat resumed>) = 3 [pid 5048] <... prctl resumed>) = 0 [pid 5047] write(3, "1000", 4 [pid 5048] setpgid(0, 0 [pid 5047] <... write resumed>) = 4 [pid 5048] <... setpgid resumed>) = 0 [pid 5047] close(3 [pid 5048] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5047] <... close resumed>) = 0 [pid 5048] <... openat resumed>) = 3 [pid 5047] symlink("/dev/binderfs", "./binderfs" [pid 5048] write(3, "1000", 4) = 4 [pid 5047] <... symlink resumed>) = 0 [pid 5046] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5048] close(3 [pid 5047] memfd_create("syzkaller", 0 [pid 5048] <... close resumed>) = 0 [pid 5047] <... memfd_create resumed>) = 3 [pid 5048] symlink("/dev/binderfs", "./binderfs" [pid 5047] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5048] <... symlink resumed>) = 0 [pid 5047] <... mmap resumed>) = 0x7faaa11e5000 [ 76.948532][ T5042] REISERFS (device loop4): found reiserfs format "3.5" with non-standard journal [pid 5048] memfd_create("syzkaller", 0) = 3 [pid 5048] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7faaa11e5000 [ 77.001533][ T5042] REISERFS (device loop4): using ordered data mode [pid 5047] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5046] <... write resumed>) = 4194304 [pid 5046] munmap(0x7faaa11e5000, 4194304) = 0 [pid 5046] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [ 77.045560][ T5042] reiserfs: using flush barriers [ 77.065132][ T5042] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5046] ioctl(4, LOOP_SET_FD, 3 [pid 5043] <... write resumed>) = 4194304 [pid 5046] <... ioctl resumed>) = 0 [pid 5046] close(3) = 0 [pid 5046] mkdir("./file0", 0777 [pid 5044] <... write resumed>) = 4194304 [pid 5044] munmap(0x7faaa11e5000, 4194304 [pid 5046] <... mkdir resumed>) = 0 [pid 5048] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5046] mount("/dev/loop1", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5044] <... munmap resumed>) = 0 [pid 5047] <... write resumed>) = 4194304 [pid 5044] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5047] munmap(0x7faaa11e5000, 4194304 [pid 5044] <... openat resumed>) = 4 [ 77.117847][ T5046] loop1: detected capacity change from 0 to 8192 [ 77.136138][ T5042] REISERFS (device loop4): checking transaction log (loop4) [ 77.148959][ T5042] REISERFS (device loop4): Using tea hash to sort names [ 77.157642][ T5042] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [pid 5044] ioctl(4, LOOP_SET_FD, 3 [pid 5047] <... munmap resumed>) = 0 [pid 5043] munmap(0x7faaa11e5000, 4194304) = 0 [pid 5043] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 5043] ioctl(4, LOOP_SET_FD, 3 [pid 5047] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5042] <... mount resumed>) = 0 [pid 5044] <... ioctl resumed>) = 0 [pid 5044] close(3) = 0 [pid 5044] mkdir("./file0", 0777) = 0 [pid 5047] <... openat resumed>) = 4 [pid 5042] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5047] ioctl(4, LOOP_SET_FD, 3 [pid 5042] <... openat resumed>) = 3 [ 77.169774][ T5044] loop2: detected capacity change from 0 to 8192 [ 77.170168][ T5046] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 77.187406][ T5043] loop5: detected capacity change from 0 to 8192 [ 77.190006][ T5046] REISERFS (device loop1): found reiserfs format "3.5" with non-standard journal [ 77.205206][ T5046] REISERFS (device loop1): using ordered data mode [ 77.208937][ T5047] loop0: detected capacity change from 0 to 8192 [pid 5042] chdir("./file0") = 0 [pid 5042] ioctl(4, LOOP_CLR_FD [pid 5044] mount("/dev/loop2", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5042] <... ioctl resumed>) = 0 [pid 5042] close(4) = 0 [pid 5042] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5042] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0) = 0x20000000 [pid 5042] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5042] exit_group(0 [pid 5047] <... ioctl resumed>) = 0 [pid 5042] <... exit_group resumed>) = ? [pid 5047] close(3 [pid 5042] +++ exited with 0 +++ [pid 5047] <... close resumed>) = 0 [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5042, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=14 /* 0.14 s */} --- [pid 5047] mkdir("./file0", 0777) = 0 [pid 5047] mount("/dev/loop0", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 4999] umount2("./3", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 4999] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] getdents64(3, 0x555557087620 /* 4 entries */, 32768) = 112 [pid 4999] umount2("./3/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] <... ioctl resumed>) = 0 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] lstat("./3/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4999] unlink("./3/binderfs") = 0 [pid 4999] umount2("./3/file0", MNT_DETACH|UMOUNT_NOFOLLOW [ 77.211717][ T5046] reiserfs: using flush barriers [ 77.213017][ T5046] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 77.239777][ T5046] REISERFS (device loop1): checking transaction log (loop1) [ 77.247767][ T5044] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 77.248556][ T5046] REISERFS (device loop1): Using tea hash to sort names [pid 5043] close(3) = 0 [pid 5043] mkdir("./file0", 0777) = 0 [pid 5043] mount("/dev/loop5", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5046] <... mount resumed>) = 0 [pid 5046] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5046] chdir("./file0") = 0 [pid 5046] ioctl(4, LOOP_CLR_FD) = 0 [pid 5046] close(4) = 0 [pid 5046] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5046] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 5048] <... write resumed>) = 4194304 [pid 5046] <... mmap resumed>) = 0x20000000 [ 77.290081][ T5046] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 77.297927][ T5047] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 77.300384][ T5044] REISERFS (device loop2): found reiserfs format "3.5" with non-standard journal [pid 5048] munmap(0x7faaa11e5000, 4194304 [pid 5046] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5048] <... munmap resumed>) = 0 [pid 5046] exit_group(0) = ? [pid 5048] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5046] +++ exited with 0 +++ [pid 4996] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5046, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 5048] <... openat resumed>) = 4 [pid 5048] ioctl(4, LOOP_SET_FD, 3 [pid 4996] umount2("./3", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4996] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 4996] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [ 77.360521][ T5047] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 77.365042][ T5043] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 77.369878][ T5047] REISERFS (device loop0): using ordered data mode [ 77.391375][ T5047] reiserfs: using flush barriers [ 77.403250][ T5048] loop3: detected capacity change from 0 to 8192 [pid 4996] getdents64(3, [pid 5048] <... ioctl resumed>) = 0 [pid 4996] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 5048] close(3 [pid 4996] umount2("./3/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5048] <... close resumed>) = 0 [pid 4996] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5048] mkdir("./file0", 0777 [pid 4996] lstat("./3/binderfs", [pid 5048] <... mkdir resumed>) = 0 [pid 4996] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5048] mount("/dev/loop3", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 4996] unlink("./3/binderfs") = 0 [pid 4996] umount2("./3/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 4996] umount2("./3/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4996] lstat("./3/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4996] umount2("./3/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4996] openat(AT_FDCWD, "./3/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 4996] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4996] getdents64(4, 0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4996] getdents64(4, 0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4996] close(4) = 0 [pid 4996] rmdir("./3/file0") = 0 [pid 4996] getdents64(3, 0x555557087620 /* 0 entries */, 32768) = 0 [pid 4996] close(3) = 0 [ 77.424145][ T5047] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 4996] rmdir("./3") = 0 [pid 4996] mkdir("./4", 0777) = 0 [pid 4996] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 4996] ioctl(3, LOOP_CLR_FD) = 0 [pid 4996] close(3) = 0 [pid 4996] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570865d0) = 5055 [ 77.496906][ T5043] REISERFS (device loop5): found reiserfs format "3.5" with non-standard journal [ 77.507810][ T5043] REISERFS (device loop5): using ordered data mode [ 77.516310][ T5043] reiserfs: using flush barriers [ 77.525481][ T5044] REISERFS (device loop2): using ordered data mode [ 77.525528][ T5048] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 ./strace-static-x86_64: Process 5055 attached [pid 5055] chdir("./4") = 0 [pid 5055] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [ 77.532000][ T5044] reiserfs: using flush barriers [ 77.552445][ T5043] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 77.568942][ T5044] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 77.571196][ T5048] REISERFS (device loop3): found reiserfs format "3.5" with non-standard journal [pid 5055] setpgid(0, 0) = 0 [pid 5055] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5055] write(3, "1000", 4 [pid 4999] <... umount2 resumed>) = 0 [pid 4999] umount2("./3/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] lstat("./3/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] umount2("./3/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./3/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 4999] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] getdents64(4, 0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4999] getdents64(4, 0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4999] close(4) = 0 [pid 4999] rmdir("./3/file0") = 0 [pid 4999] getdents64(3, 0x555557087620 /* 0 entries */, 32768) = 0 [pid 5055] <... write resumed>) = 4 [pid 4999] close(3 [pid 5055] close(3) = 0 [pid 4999] <... close resumed>) = 0 [pid 5055] symlink("/dev/binderfs", "./binderfs" [pid 4999] rmdir("./3") = 0 [pid 4999] mkdir("./4", 0777) = 0 [pid 4999] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 4999] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 4999] close(3) = 0 [pid 4999] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570865d0) = 5056 ./strace-static-x86_64: Process 5056 attached [pid 5056] chdir("./4") = 0 [ 77.586518][ T5043] REISERFS (device loop5): checking transaction log (loop5) [ 77.594919][ T5048] REISERFS (device loop3): using ordered data mode [ 77.609716][ T5048] reiserfs: using flush barriers [ 77.616052][ T5047] REISERFS (device loop0): checking transaction log (loop0) [ 77.626205][ T5047] REISERFS (device loop0): Using tea hash to sort names [pid 5056] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5056] setpgid(0, 0) = 0 [pid 5056] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5056] write(3, "1000", 4) = 4 [pid 5056] close(3) = 0 [pid 5056] symlink("/dev/binderfs", "./binderfs" [pid 5055] <... symlink resumed>) = 0 [pid 5056] <... symlink resumed>) = 0 [pid 5056] memfd_create("syzkaller", 0 [pid 5055] memfd_create("syzkaller", 0) = 3 [pid 5055] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7faaa11e5000 [pid 5056] <... memfd_create resumed>) = 3 [pid 5056] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7faaa11e5000 [ 77.638205][ T5048] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 77.698764][ T5047] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 77.734731][ T5044] REISERFS (device loop2): checking transaction log (loop2) [pid 5056] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5047] <... mount resumed>) = 0 [pid 5047] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5047] chdir("./file0") = 0 [pid 5047] ioctl(4, LOOP_CLR_FD) = 0 [pid 5047] close(4) = 0 [pid 5047] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5047] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0) = 0x20000000 [pid 5047] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5047] exit_group(0) = ? [ 77.769291][ T5043] REISERFS (device loop5): Using tea hash to sort names [ 77.796152][ T5048] REISERFS (device loop3): checking transaction log (loop3) [ 77.804434][ T5044] REISERFS (device loop2): Using tea hash to sort names [pid 5047] +++ exited with 0 +++ [pid 5055] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5044] <... mount resumed>) = 0 [pid 5044] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5044] chdir("./file0") = 0 [pid 5044] ioctl(4, LOOP_CLR_FD) = 0 [pid 5044] close(4 [pid 4995] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5047, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=14 /* 0.14 s */} --- [pid 4995] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 4995] umount2("./3", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5044] <... close resumed>) = 0 [pid 4995] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5044] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4995] <... openat resumed>) = 3 [pid 5044] <... openat resumed>) = 4 [pid 4995] fstat(3, [pid 5044] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 4995] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5044] <... mmap resumed>) = 0x20000000 [pid 4995] getdents64(3, [pid 5044] ioctl(4, FS_IOC_GETVERSION [pid 4995] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 4995] umount2("./3/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5044] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 4995] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 77.825291][ T5043] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 77.840888][ T5048] REISERFS (device loop3): Using tea hash to sort names [ 77.847990][ T5044] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 5044] exit_group(0 [pid 4995] lstat("./3/binderfs", [pid 5044] <... exit_group resumed>) = ? [pid 4995] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5044] +++ exited with 0 +++ [pid 4995] unlink("./3/binderfs" [pid 4997] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5044, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=18 /* 0.18 s */} --- [pid 4995] <... unlink resumed>) = 0 [pid 5043] <... mount resumed>) = 0 [pid 4995] umount2("./3/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 4997] umount2("./3", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] chdir("./file0") = 0 [pid 4997] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] ioctl(4, LOOP_CLR_FD [pid 4997] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5043] <... ioctl resumed>) = 0 [pid 4997] <... openat resumed>) = 3 [pid 5043] close(4 [pid 4997] fstat(3, [pid 5043] <... close resumed>) = 0 [pid 4997] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5043] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4997] getdents64(3, [pid 5043] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0) = 0x20000000 [pid 4997] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 5043] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 4997] umount2("./3/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5043] exit_group(0 [pid 4997] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5043] <... exit_group resumed>) = ? [pid 5043] +++ exited with 0 +++ [pid 4997] lstat("./3/binderfs", [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5043, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- [pid 4997] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4997] unlink("./3/binderfs" [pid 5000] umount2("./3", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4997] <... unlink resumed>) = 0 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4997] umount2("./3/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] <... openat resumed>) = 3 [pid 5000] fstat(3, [pid 4995] <... umount2 resumed>) = 0 [pid 5000] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] getdents64(3, [pid 4995] umount2("./3/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 4995] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] umount2("./3/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4995] lstat("./3/file0", [pid 5000] lstat("./3/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4995] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] unlink("./3/binderfs") = 0 [pid 4995] umount2("./3/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] umount2("./3/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4995] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4995] openat(AT_FDCWD, "./3/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 4995] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4995] getdents64(4, 0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4995] getdents64(4, 0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4995] close(4) = 0 [pid 4995] rmdir("./3/file0") = 0 [pid 4995] getdents64(3, 0x555557087620 /* 0 entries */, 32768) = 0 [pid 4995] close(3) = 0 [pid 4995] rmdir("./3") = 0 [pid 4995] mkdir("./4", 0777 [pid 5056] <... write resumed>) = 4194304 [pid 4995] <... mkdir resumed>) = 0 [pid 4995] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 4995] ioctl(3, LOOP_CLR_FD) = 0 [pid 4995] close(3) = 0 [pid 4995] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570865d0) = 5057 ./strace-static-x86_64: Process 5057 attached [ 77.966283][ T5048] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [pid 5057] chdir("./4") = 0 [pid 5048] <... mount resumed>) = 0 [pid 5057] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5056] munmap(0x7faaa11e5000, 4194304 [pid 5048] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5057] <... prctl resumed>) = 0 [pid 5048] <... openat resumed>) = 3 [pid 5057] setpgid(0, 0 [pid 5048] chdir("./file0" [pid 5000] <... umount2 resumed>) = 0 [pid 5057] <... setpgid resumed>) = 0 [pid 5048] <... chdir resumed>) = 0 [pid 5000] umount2("./3/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5048] ioctl(4, LOOP_CLR_FD [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] <... openat resumed>) = 3 [pid 5048] <... ioctl resumed>) = 0 [pid 5057] write(3, "1000", 4 [pid 5056] <... munmap resumed>) = 0 [pid 5000] lstat("./3/file0", [pid 4997] <... umount2 resumed>) = 0 [pid 5048] close(4 [pid 5057] <... write resumed>) = 4 [pid 5056] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5048] <... close resumed>) = 0 [pid 5000] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4997] umount2("./3/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] close(3 [pid 5056] <... openat resumed>) = 4 [pid 5055] <... write resumed>) = 4194304 [pid 5048] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5000] umount2("./3/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4997] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] <... close resumed>) = 0 [pid 5056] ioctl(4, LOOP_SET_FD, 3 [pid 4997] lstat("./3/file0", [pid 5057] symlink("/dev/binderfs", "./binderfs" [pid 5055] munmap(0x7faaa11e5000, 4194304 [pid 5048] <... openat resumed>) = 4 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4997] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5057] <... symlink resumed>) = 0 [pid 4997] umount2("./3/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5057] memfd_create("syzkaller", 0 [pid 4997] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5057] <... memfd_create resumed>) = 3 [pid 4997] openat(AT_FDCWD, "./3/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5057] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5055] <... munmap resumed>) = 0 [pid 5048] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 5000] openat(AT_FDCWD, "./3/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4997] <... openat resumed>) = 4 [pid 5057] <... mmap resumed>) = 0x7faaa11e5000 [pid 5055] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4997] fstat(4, [pid 5048] <... mmap resumed>) = 0x20000000 [pid 5000] <... openat resumed>) = 4 [pid 4997] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5055] <... openat resumed>) = 4 [pid 5048] ioctl(4, FS_IOC_GETVERSION [pid 5000] fstat(4, [pid 4997] getdents64(4, [pid 5055] ioctl(4, LOOP_SET_FD, 3 [pid 5048] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5000] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4997] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4997] getdents64(4, [pid 5056] <... ioctl resumed>) = 0 [pid 4997] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 5056] close(3 [pid 4997] close(4 [pid 5056] <... close resumed>) = 0 [pid 4997] <... close resumed>) = 0 [pid 5056] mkdir("./file0", 0777 [pid 4997] rmdir("./3/file0" [pid 5056] <... mkdir resumed>) = 0 [pid 4997] <... rmdir resumed>) = 0 [pid 5056] mount("/dev/loop4", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 4997] getdents64(3, [pid 5048] exit_group(0 [pid 4997] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 4997] close(3) = 0 [pid 5048] <... exit_group resumed>) = ? [pid 5000] getdents64(4, [pid 4997] rmdir("./3") = 0 [pid 5048] +++ exited with 0 +++ [ 78.069633][ T5056] loop4: detected capacity change from 0 to 8192 [ 78.098254][ T5055] loop1: detected capacity change from 0 to 8192 [pid 4997] mkdir("./4", 0777 [pid 5000] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5048, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=12 /* 0.12 s */} --- [pid 4997] <... mkdir resumed>) = 0 [pid 4997] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 4997] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 4997] close(3 [pid 5000] getdents64(4, [pid 4997] <... close resumed>) = 0 [pid 4997] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5055] <... ioctl resumed>) = 0 [pid 5000] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 5055] close(3 [pid 5000] close(4 [pid 4997] <... clone resumed>, child_tidptr=0x5555570865d0) = 5059 [pid 5055] <... close resumed>) = 0 [pid 5000] <... close resumed>) = 0 [pid 5055] mkdir("./file0", 0777 [pid 5000] rmdir("./3/file0" [pid 5055] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 5059 attached [pid 5055] mount("/dev/loop1", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5000] <... rmdir resumed>) = 0 [pid 4998] umount2("./3", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] chdir("./4" [pid 5000] getdents64(3, 0x555557087620 /* 0 entries */, 32768) = 0 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] close(3 [pid 4998] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5000] <... close resumed>) = 0 [pid 5000] rmdir("./3" [pid 4998] <... openat resumed>) = 3 [pid 5059] <... chdir resumed>) = 0 [pid 5000] <... rmdir resumed>) = 0 [pid 4998] fstat(3, [pid 5059] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5000] mkdir("./4", 0777 [pid 5059] <... prctl resumed>) = 0 [pid 4998] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5059] setpgid(0, 0) = 0 [pid 5059] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5059] write(3, "1000", 4) = 4 [pid 5059] close(3) = 0 [pid 5059] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5059] memfd_create("syzkaller", 0) = 3 [ 78.115170][ T5056] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 4998] getdents64(3, [pid 5059] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5000] <... mkdir resumed>) = 0 [pid 5059] <... mmap resumed>) = 0x7faaa11e5000 [pid 5000] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4998] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [ 78.157454][ T5055] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5057] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5000] <... openat resumed>) = 3 [pid 4998] umount2("./3/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./3/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4998] unlink("./3/binderfs") = 0 [pid 4998] umount2("./3/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [ 78.194904][ T5056] REISERFS (device loop4): found reiserfs format "3.5" with non-standard journal [ 78.213596][ T5056] REISERFS (device loop4): using ordered data mode [ 78.229210][ T5055] REISERFS (device loop1): found reiserfs format "3.5" with non-standard journal [pid 5000] close(3) = 0 [pid 5000] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570865d0) = 5061 ./strace-static-x86_64: Process 5061 attached [pid 5061] chdir("./4") = 0 [pid 5061] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5061] setpgid(0, 0) = 0 [pid 5061] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5061] write(3, "1000", 4) = 4 [pid 5061] close(3) = 0 [pid 5061] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5061] memfd_create("syzkaller", 0) = 3 [pid 5061] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7faaa11e5000 [ 78.247997][ T5056] reiserfs: using flush barriers [ 78.258665][ T5056] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 78.318113][ T5056] REISERFS (device loop4): checking transaction log (loop4) [ 78.345073][ T5055] REISERFS (device loop1): using ordered data mode [ 78.358928][ T5056] REISERFS (device loop4): Using tea hash to sort names [pid 5059] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5057] <... write resumed>) = 4194304 [ 78.383724][ T5055] reiserfs: using flush barriers [ 78.398424][ T5056] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [pid 5057] munmap(0x7faaa11e5000, 4194304) = 0 [pid 5057] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5057] ioctl(4, LOOP_SET_FD, 3 [pid 5056] <... mount resumed>) = 0 [pid 5056] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5056] chdir("./file0") = 0 [pid 5056] ioctl(4, LOOP_CLR_FD) = 0 [pid 5056] close(4 [pid 5061] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 4998] <... umount2 resumed>) = 0 [pid 5056] <... close resumed>) = 0 [pid 4998] umount2("./3/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./3/file0", [pid 5056] <... openat resumed>) = 4 [pid 4998] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5057] <... ioctl resumed>) = 0 [pid 5057] close(3) = 0 [pid 5056] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 5057] mkdir("./file0", 0777 [pid 5056] <... mmap resumed>) = 0x20000000 [pid 4998] umount2("./3/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5056] ioctl(4, FS_IOC_GETVERSION [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5056] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 4998] openat(AT_FDCWD, "./3/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5057] <... mkdir resumed>) = 0 [pid 5056] exit_group(0 [pid 5057] mount("/dev/loop0", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5056] <... exit_group resumed>) = ? [pid 4998] <... openat resumed>) = 4 [pid 4998] fstat(4, [pid 5056] +++ exited with 0 +++ [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5056, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=16 /* 0.16 s */} --- [pid 4999] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 4999] umount2("./4", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 78.418672][ T5055] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 78.440142][ T5057] loop0: detected capacity change from 0 to 8192 [pid 4998] getdents64(4, [pid 4999] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 4998] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4999] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] getdents64(3, 0x555557087620 /* 4 entries */, 32768) = 112 [pid 4999] umount2("./4/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] lstat("./4/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4999] unlink("./4/binderfs") = 0 [pid 4998] getdents64(4, [pid 4999] umount2("./4/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4998] close(4) = 0 [pid 4998] rmdir("./3/file0") = 0 [pid 4998] getdents64(3, 0x555557087620 /* 0 entries */, 32768) = 0 [pid 4998] close(3) = 0 [pid 4998] rmdir("./3") = 0 [pid 4998] mkdir("./4", 0777) = 0 [pid 4998] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 4998] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 4998] close(3) = 0 [pid 4998] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570865d0) = 5063 ./strace-static-x86_64: Process 5063 attached [pid 5063] chdir("./4") = 0 [pid 5063] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5063] setpgid(0, 0) = 0 [ 78.496685][ T5057] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5063] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5063] write(3, "1000", 4) = 4 [pid 5063] close(3) = 0 [pid 5061] <... write resumed>) = 4194304 [pid 5059] <... write resumed>) = 4194304 [pid 5063] symlink("/dev/binderfs", "./binderfs" [pid 5061] munmap(0x7faaa11e5000, 4194304 [pid 5059] munmap(0x7faaa11e5000, 4194304 [pid 5063] <... symlink resumed>) = 0 [pid 5061] <... munmap resumed>) = 0 [pid 5059] <... munmap resumed>) = 0 [pid 5063] memfd_create("syzkaller", 0 [pid 5061] openat(AT_FDCWD, "/dev/loop5", O_RDWR [ 78.540538][ T5055] REISERFS (device loop1): checking transaction log (loop1) [ 78.572437][ T5057] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 78.582134][ T5057] REISERFS (device loop0): using ordered data mode [ 78.588751][ T5057] reiserfs: using flush barriers [pid 5059] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5063] <... memfd_create resumed>) = 3 [pid 5061] <... openat resumed>) = 4 [pid 5059] <... openat resumed>) = 4 [pid 5063] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5061] ioctl(4, LOOP_SET_FD, 3 [pid 5059] ioctl(4, LOOP_SET_FD, 3 [pid 5063] <... mmap resumed>) = 0x7faaa11e5000 [ 78.595070][ T5057] 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 [ 78.600486][ T5061] loop5: detected capacity change from 0 to 8192 [ 78.611676][ T5057] REISERFS (device loop0): checking transaction log (loop0) [ 78.619088][ T5059] loop2: detected capacity change from 0 to 8192 [ 78.632563][ T5057] REISERFS (device loop0): Using tea hash to sort names [pid 5061] <... ioctl resumed>) = 0 [pid 5059] <... ioctl resumed>) = 0 [pid 5057] <... mount resumed>) = 0 [pid 5061] close(3 [pid 5059] close(3 [pid 5057] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5061] <... close resumed>) = 0 [pid 5059] <... close resumed>) = 0 [pid 5057] <... openat resumed>) = 3 [pid 5061] mkdir("./file0", 0777 [pid 5059] mkdir("./file0", 0777 [pid 5057] chdir("./file0" [pid 5061] <... mkdir resumed>) = 0 [pid 5059] <... mkdir resumed>) = 0 [pid 5057] <... chdir resumed>) = 0 [pid 5061] mount("/dev/loop5", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5059] mount("/dev/loop2", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5057] ioctl(4, LOOP_CLR_FD) = 0 [pid 5057] close(4) = 0 [pid 5057] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [ 78.641489][ T5057] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 78.645285][ T5055] REISERFS (device loop1): Using tea hash to sort names [ 78.665408][ T5061] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 78.680336][ T5059] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5057] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0) = 0x20000000 [pid 5057] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5057] exit_group(0) = ? [pid 5057] +++ exited with 0 +++ [pid 4995] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5057, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 4995] umount2("./4", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4995] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5063] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 4995] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4995] getdents64(3, 0x555557087620 /* 4 entries */, 32768) = 112 [pid 4995] umount2("./4/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 78.685165][ T5055] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 78.720709][ T5061] REISERFS (device loop5): found reiserfs format "3.5" with non-standard journal [pid 4995] lstat("./4/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4995] unlink("./4/binderfs") = 0 [pid 4995] umount2("./4/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5055] <... mount resumed>) = 0 [pid 5055] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5055] chdir("./file0") = 0 [pid 5055] ioctl(4, LOOP_CLR_FD) = 0 [pid 5055] close(4) = 0 [ 78.738903][ T5059] REISERFS (device loop2): found reiserfs format "3.5" with non-standard journal [pid 5055] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5055] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0) = 0x20000000 [pid 5055] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5055] exit_group(0) = ? [pid 5055] +++ exited with 0 +++ [pid 4996] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5055, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=14 /* 0.14 s */} --- [pid 4996] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 4996] umount2("./4", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4996] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 4996] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4996] getdents64(3, 0x555557087620 /* 4 entries */, 32768) = 112 [pid 4996] umount2("./4/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4996] lstat("./4/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4996] unlink("./4/binderfs") = 0 [pid 5063] <... write resumed>) = 4194304 [pid 4996] umount2("./4/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5063] munmap(0x7faaa11e5000, 4194304) = 0 [ 78.794027][ T5061] REISERFS (device loop5): using ordered data mode [pid 5063] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4999] <... umount2 resumed>) = 0 [pid 4995] <... umount2 resumed>) = 0 [pid 5063] <... openat resumed>) = 4 [pid 5063] ioctl(4, LOOP_SET_FD, 3 [pid 4999] umount2("./4/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4995] umount2("./4/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4995] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5063] <... ioctl resumed>) = 0 [pid 4999] lstat("./4/file0", [pid 4995] lstat("./4/file0", [pid 4999] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4995] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4995] umount2("./4/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] umount2("./4/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4996] <... umount2 resumed>) = 0 [pid 4995] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./4/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4996] umount2("./4/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4996] lstat("./4/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4996] umount2("./4/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4996] openat(AT_FDCWD, "./4/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 4996] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4996] getdents64(4, 0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4996] getdents64(4, 0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4996] close(4) = 0 [ 78.838976][ T5059] REISERFS (device loop2): using ordered data mode [ 78.842857][ T5061] reiserfs: using flush barriers [ 78.853212][ T5063] loop3: detected capacity change from 0 to 8192 [ 78.860538][ T5059] reiserfs: using flush barriers [ 78.873075][ T5061] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 4996] rmdir("./4/file0") = 0 [pid 4996] getdents64(3, [pid 4995] openat(AT_FDCWD, "./4/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4999] <... openat resumed>) = 4 [pid 4996] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 4995] <... openat resumed>) = 4 [pid 4999] fstat(4, [pid 5063] close(3 [pid 4995] fstat(4, [pid 5063] <... close resumed>) = 0 [pid 4999] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5063] mkdir("./file0", 0777 [pid 4995] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4996] close(3) = 0 [pid 4996] rmdir("./4") = 0 [pid 4996] mkdir("./5", 0777) = 0 [pid 4996] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 4996] ioctl(3, LOOP_CLR_FD) = 0 [pid 4996] close(3) = 0 [pid 4996] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570865d0) = 5066 [pid 5063] <... mkdir resumed>) = 0 [pid 4999] getdents64(4, [pid 4995] getdents64(4, ./strace-static-x86_64: Process 5066 attached [pid 5066] chdir("./5") = 0 [pid 5066] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5066] setpgid(0, 0) = 0 [pid 5066] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5063] mount("/dev/loop3", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 4999] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4995] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4999] getdents64(4, [pid 4995] getdents64(4, [pid 4999] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4995] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4999] close(4 [pid 4995] close(4 [pid 4999] <... close resumed>) = 0 [pid 4995] <... close resumed>) = 0 [pid 4999] rmdir("./4/file0" [pid 4995] rmdir("./4/file0" [pid 5066] <... openat resumed>) = 3 [pid 4999] <... rmdir resumed>) = 0 [pid 5066] write(3, "1000", 4 [pid 4995] <... rmdir resumed>) = 0 [pid 4999] getdents64(3, [pid 4995] getdents64(3, [pid 4999] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 4995] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 4999] close(3 [pid 4995] close(3 [pid 5066] <... write resumed>) = 4 [pid 4999] <... close resumed>) = 0 [pid 4995] <... close resumed>) = 0 [pid 4999] rmdir("./4" [pid 4995] rmdir("./4" [pid 5066] close(3) = 0 [pid 4999] <... rmdir resumed>) = 0 [ 78.886929][ T5059] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 78.905889][ T5061] REISERFS (device loop5): checking transaction log (loop5) [ 78.925207][ T5063] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5066] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4999] mkdir("./5", 0777 [pid 4995] <... rmdir resumed>) = 0 [pid 5066] memfd_create("syzkaller", 0) = 3 [pid 5066] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 4999] <... mkdir resumed>) = 0 [pid 4995] mkdir("./5", 0777 [pid 5066] <... mmap resumed>) = 0x7faaa11e5000 [pid 4999] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4995] <... mkdir resumed>) = 0 [pid 4999] <... openat resumed>) = 3 [pid 4999] ioctl(3, LOOP_CLR_FD [pid 4995] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 4999] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4995] ioctl(3, LOOP_CLR_FD [pid 4999] close(3 [pid 4995] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4999] <... close resumed>) = 0 [pid 4995] close(3 [pid 4999] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4995] <... close resumed>) = 0 [pid 4995] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4999] <... clone resumed>, child_tidptr=0x5555570865d0) = 5068 [pid 4995] <... clone resumed>, child_tidptr=0x5555570865d0) = 5069 ./strace-static-x86_64: Process 5068 attached [pid 5068] chdir("./5") = 0 [pid 5068] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5068] setpgid(0, 0) = 0 [pid 5068] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5068] write(3, "1000", 4) = 4 [pid 5068] close(3) = 0 [pid 5068] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5068] memfd_create("syzkaller", 0) = 3 [pid 5068] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7faaa11e5000 ./strace-static-x86_64: Process 5069 attached [pid 5066] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [ 78.927215][ T5059] REISERFS (device loop2): checking transaction log (loop2) [ 78.950539][ T5061] REISERFS (device loop5): Using tea hash to sort names [ 78.977657][ T5063] REISERFS (device loop3): found reiserfs format "3.5" with non-standard journal [pid 5069] chdir("./5") = 0 [pid 5069] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5069] setpgid(0, 0) = 0 [pid 5069] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [ 79.008623][ T5061] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 79.019131][ T5063] REISERFS (device loop3): using ordered data mode [ 79.026843][ T5059] REISERFS (device loop2): Using tea hash to sort names [ 79.027094][ T5063] reiserfs: using flush barriers [pid 5069] write(3, "1000", 4) = 4 [pid 5069] close(3) = 0 [pid 5069] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5061] <... mount resumed>) = 0 [pid 5061] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5061] chdir("./file0") = 0 [pid 5061] ioctl(4, LOOP_CLR_FD) = 0 [pid 5061] close(4) = 0 [pid 5061] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5061] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0) = 0x20000000 [pid 5061] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5061] exit_group(0) = ? [pid 5069] memfd_create("syzkaller", 0) = 3 [pid 5069] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7faaa11e5000 [pid 5061] +++ exited with 0 +++ [ 79.045848][ T5063] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 79.072350][ T5063] REISERFS (device loop3): checking transaction log (loop3) [ 79.076863][ T5059] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 79.091984][ T5063] REISERFS (device loop3): Using tea hash to sort names [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5061, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=17 /* 0.17 s */} --- [pid 5000] umount2("./4", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5063] <... mount resumed>) = 0 [pid 5063] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5063] chdir("./file0") = 0 [pid 5000] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5063] ioctl(4, LOOP_CLR_FD) = 0 [pid 5063] close(4) = 0 [pid 5063] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5000] <... openat resumed>) = 3 [pid 5000] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] getdents64(3, 0x555557087620 /* 4 entries */, 32768) = 112 [pid 5000] umount2("./4/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./4/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] unlink("./4/binderfs") = 0 [pid 5063] <... openat resumed>) = 4 [pid 5000] umount2("./4/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5063] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0) = 0x20000000 [pid 5063] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5063] exit_group(0) = ? [pid 5063] +++ exited with 0 +++ [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5063, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=16 /* 0.16 s */} --- [pid 4998] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 4998] umount2("./4", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 4998] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] getdents64(3, 0x555557087620 /* 4 entries */, 32768) = 112 [pid 4998] umount2("./4/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./4/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4998] unlink("./4/binderfs") = 0 [ 79.102336][ T5063] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [pid 4998] umount2("./4/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5059] <... mount resumed>) = 0 [pid 5059] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5059] chdir("./file0") = 0 [pid 5059] ioctl(4, LOOP_CLR_FD) = 0 [pid 5059] close(4) = 0 [pid 5059] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5059] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0) = 0x20000000 [pid 5059] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5059] exit_group(0) = ? [pid 5059] +++ exited with 0 +++ [pid 5068] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 4997] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5059, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 4997] umount2("./4", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4997] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 4997] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4997] getdents64(3, 0x555557087620 /* 4 entries */, 32768) = 112 [pid 5066] <... write resumed>) = 4194304 [pid 4997] umount2("./4/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4997] lstat("./4/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4997] unlink("./4/binderfs") = 0 [pid 4997] umount2("./4/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5066] munmap(0x7faaa11e5000, 4194304 [pid 5069] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5066] <... munmap resumed>) = 0 [pid 5066] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5066] ioctl(4, LOOP_SET_FD, 3 [pid 5000] <... umount2 resumed>) = 0 [pid 4998] <... umount2 resumed>) = 0 [pid 5000] umount2("./4/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] umount2("./4/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./4/file0", [pid 4998] lstat("./4/file0", [pid 5000] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] umount2("./4/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] umount2("./4/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] openat(AT_FDCWD, "./4/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] <... openat resumed>) = 4 [pid 4998] openat(AT_FDCWD, "./4/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5000] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] <... openat resumed>) = 4 [pid 5000] getdents64(4, 0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4998] fstat(4, [pid 5000] getdents64(4, [pid 4998] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4998] getdents64(4, [pid 5000] close(4) = 0 [pid 4998] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 5000] rmdir("./4/file0" [pid 4998] getdents64(4, [pid 5066] <... ioctl resumed>) = 0 [pid 5000] <... rmdir resumed>) = 0 [pid 4998] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 5000] getdents64(3, [pid 4998] close(4 [pid 5000] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 4998] <... close resumed>) = 0 [pid 5000] close(3 [pid 4998] rmdir("./4/file0" [pid 5000] <... close resumed>) = 0 [pid 4998] <... rmdir resumed>) = 0 [pid 5066] close(3 [pid 5000] rmdir("./4" [pid 4998] getdents64(3, [pid 5066] <... close resumed>) = 0 [pid 5066] mkdir("./file0", 0777 [pid 5000] <... rmdir resumed>) = 0 [pid 4998] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 5066] <... mkdir resumed>) = 0 [pid 5000] mkdir("./5", 0777 [pid 4998] close(3 [pid 5066] mount("/dev/loop1", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5000] <... mkdir resumed>) = 0 [pid 4998] <... close resumed>) = 0 [pid 5000] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4998] rmdir("./4" [pid 5000] <... openat resumed>) = 3 [pid 4998] <... rmdir resumed>) = 0 [pid 5000] ioctl(3, LOOP_CLR_FD [pid 4998] mkdir("./5", 0777 [pid 5000] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4998] <... mkdir resumed>) = 0 [ 79.257803][ T5066] loop1: detected capacity change from 0 to 8192 [pid 5000] close(3 [pid 4998] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5000] <... close resumed>) = 0 [pid 4998] <... openat resumed>) = 3 [pid 5000] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4998] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5000] <... clone resumed>, child_tidptr=0x5555570865d0) = 5071 [pid 4998] close(3) = 0 [pid 4998] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5071 attached , child_tidptr=0x5555570865d0) = 5072 [pid 5071] chdir("./5") = 0 [pid 5071] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5071] setpgid(0, 0 [pid 5069] <... write resumed>) = 4194304 ./strace-static-x86_64: Process 5072 attached [pid 5071] <... setpgid resumed>) = 0 [pid 4997] <... umount2 resumed>) = 0 [pid 5069] munmap(0x7faaa11e5000, 4194304 [pid 5072] chdir("./5" [pid 5071] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4997] umount2("./4/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... chdir resumed>) = 0 [pid 5071] <... openat resumed>) = 3 [pid 4997] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] <... munmap resumed>) = 0 [ 79.316793][ T5066] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 79.346981][ T5066] REISERFS (device loop1): found reiserfs format "3.5" with non-standard journal [ 79.358990][ T5066] REISERFS (device loop1): using ordered data mode [pid 5072] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5071] write(3, "1000", 4 [pid 5069] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4997] lstat("./4/file0", [pid 5069] <... openat resumed>) = 4 [pid 5069] ioctl(4, LOOP_SET_FD, 3 [pid 5072] <... prctl resumed>) = 0 [pid 5071] <... write resumed>) = 4 [pid 4997] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] setpgid(0, 0) = 0 [pid 5071] close(3 [pid 4997] umount2("./4/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5071] <... close resumed>) = 0 [pid 4997] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] <... ioctl resumed>) = 0 [pid 5069] close(3) = 0 [pid 5069] mkdir("./file0", 0777) = 0 [pid 5072] <... openat resumed>) = 3 [pid 5071] symlink("/dev/binderfs", "./binderfs" [pid 5068] <... write resumed>) = 4194304 [ 79.366837][ T5066] reiserfs: using flush barriers [ 79.374207][ T5069] loop0: detected capacity change from 0 to 8192 [ 79.375211][ T5066] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 79.399354][ T5066] REISERFS (device loop1): checking transaction log (loop1) [ 79.410469][ T5066] REISERFS (device loop1): Using tea hash to sort names [pid 5069] mount("/dev/loop0", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 4997] openat(AT_FDCWD, "./4/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5072] write(3, "1000", 4 [pid 5071] <... symlink resumed>) = 0 [pid 5068] munmap(0x7faaa11e5000, 4194304 [pid 5072] <... write resumed>) = 4 [pid 4997] <... openat resumed>) = 4 [pid 5071] memfd_create("syzkaller", 0 [pid 5072] close(3 [pid 5071] <... memfd_create resumed>) = 3 [pid 5068] <... munmap resumed>) = 0 [pid 5066] <... mount resumed>) = 0 [pid 4997] fstat(4, [pid 5072] <... close resumed>) = 0 [pid 5071] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5068] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5066] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 4997] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] <... openat resumed>) = 4 [pid 5071] <... mmap resumed>) = 0x7faaa11e5000 [pid 5066] <... openat resumed>) = 3 [pid 5072] symlink("/dev/binderfs", "./binderfs" [pid 5068] ioctl(4, LOOP_SET_FD, 3 [pid 4997] getdents64(4, [pid 5072] <... symlink resumed>) = 0 [pid 5066] chdir("./file0" [pid 4997] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [ 79.419046][ T5066] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 79.431324][ T5069] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 79.450185][ T5069] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 79.455812][ T5068] loop4: detected capacity change from 0 to 8192 [pid 5072] memfd_create("syzkaller", 0 [pid 5066] <... chdir resumed>) = 0 [pid 4997] getdents64(4, [pid 5072] <... memfd_create resumed>) = 3 [pid 5066] ioctl(4, LOOP_CLR_FD [pid 4997] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 5066] <... ioctl resumed>) = 0 [pid 5072] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 4997] close(4 [pid 5066] close(4 [pid 4997] <... close resumed>) = 0 [pid 5072] <... mmap resumed>) = 0x7faaa11e5000 [pid 5066] <... close resumed>) = 0 [pid 5066] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4997] rmdir("./4/file0" [pid 5066] <... openat resumed>) = 4 [pid 4997] <... rmdir resumed>) = 0 [pid 4997] getdents64(3, [pid 5066] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 4997] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 5066] <... mmap resumed>) = 0x20000000 [pid 4997] close(3) = 0 [pid 4997] rmdir("./4") = 0 [pid 5066] ioctl(4, FS_IOC_GETVERSION [pid 4997] mkdir("./5", 0777 [pid 5066] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 4997] <... mkdir resumed>) = 0 [pid 5066] exit_group(0) = ? [pid 4997] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5066] +++ exited with 0 +++ [pid 4997] <... openat resumed>) = 3 [pid 4996] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5066, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=9 /* 0.09 s */} --- [pid 4997] ioctl(3, LOOP_CLR_FD [pid 4996] restart_syscall(<... resuming interrupted clone ...> [pid 4997] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4996] <... restart_syscall resumed>) = 0 [pid 4997] close(3) = 0 [pid 4996] umount2("./5", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4997] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4996] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4996] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4997] <... clone resumed>, child_tidptr=0x5555570865d0) = 5074 [pid 4996] <... openat resumed>) = 3 [pid 4996] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4996] getdents64(3, 0x555557087620 /* 4 entries */, 32768) = 112 [pid 4996] umount2("./5/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4996] lstat("./5/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4996] unlink("./5/binderfs") = 0 [ 79.461447][ T5069] REISERFS (device loop0): using ordered data mode [ 79.476093][ T5069] reiserfs: using flush barriers [ 79.497641][ T5069] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 4996] umount2("./5/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5074 attached [pid 5068] <... ioctl resumed>) = 0 [pid 5074] chdir("./5" [pid 5068] close(3 [pid 5074] <... chdir resumed>) = 0 [pid 5068] <... close resumed>) = 0 [pid 5074] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5068] mkdir("./file0", 0777 [pid 5074] <... prctl resumed>) = 0 [pid 5068] <... mkdir resumed>) = 0 [pid 5074] setpgid(0, 0 [pid 5068] mount("/dev/loop4", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5074] <... setpgid resumed>) = 0 [pid 5074] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5074] write(3, "1000", 4) = 4 [ 79.514548][ T5069] REISERFS (device loop0): checking transaction log (loop0) [ 79.523872][ T5069] REISERFS (device loop0): Using tea hash to sort names [ 79.537004][ T5068] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5074] close(3 [pid 5072] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5074] <... close resumed>) = 0 [pid 5074] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5074] memfd_create("syzkaller", 0) = 3 [pid 5074] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7faaa11e5000 [ 79.560818][ T5068] REISERFS (device loop4): found reiserfs format "3.5" with non-standard journal [ 79.567734][ T5069] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 79.580765][ T5068] REISERFS (device loop4): using ordered data mode [ 79.604865][ T5068] reiserfs: using flush barriers [pid 5069] <... mount resumed>) = 0 [pid 5069] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5069] chdir("./file0") = 0 [pid 5069] ioctl(4, LOOP_CLR_FD) = 0 [ 79.611094][ T5068] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5074] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5069] close(4) = 0 [pid 5069] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5069] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 5072] <... write resumed>) = 4194304 [pid 5072] munmap(0x7faaa11e5000, 4194304 [pid 5069] <... mmap resumed>) = 0x20000000 [pid 5071] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5069] ioctl(4, FS_IOC_GETVERSION [pid 5072] <... munmap resumed>) = 0 [pid 5069] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5072] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5069] exit_group(0 [pid 5072] <... openat resumed>) = 4 [pid 5072] ioctl(4, LOOP_SET_FD, 3 [pid 5069] <... exit_group resumed>) = ? [ 79.660493][ T5068] REISERFS (device loop4): checking transaction log (loop4) [ 79.696729][ T5068] REISERFS (device loop4): Using tea hash to sort names [pid 5069] +++ exited with 0 +++ [pid 4995] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5069, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=14 /* 0.14 s */} --- [pid 4995] umount2("./5", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4996] <... umount2 resumed>) = 0 [pid 4995] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5072] <... ioctl resumed>) = 0 [pid 5068] <... mount resumed>) = 0 [pid 4995] <... openat resumed>) = 3 [pid 5072] close(3 [pid 5068] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 4996] umount2("./5/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4995] fstat(3, [pid 5074] <... write resumed>) = 4194304 [pid 5072] <... close resumed>) = 0 [pid 5068] <... openat resumed>) = 3 [pid 4996] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4995] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] munmap(0x7faaa11e5000, 4194304 [pid 5072] mkdir("./file0", 0777 [pid 5068] chdir("./file0" [pid 4996] lstat("./5/file0", [pid 4995] getdents64(3, [pid 4996] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4995] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 5074] <... munmap resumed>) = 0 [pid 4996] umount2("./5/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4995] umount2("./5/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5072] <... mkdir resumed>) = 0 [pid 5068] <... chdir resumed>) = 0 [pid 4996] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4995] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] <... openat resumed>) = 4 [pid 5072] mount("/dev/loop3", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5068] ioctl(4, LOOP_CLR_FD [pid 4996] openat(AT_FDCWD, "./5/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4995] lstat("./5/binderfs", [pid 5074] ioctl(4, LOOP_SET_FD, 3 [pid 5068] <... ioctl resumed>) = 0 [pid 4996] <... openat resumed>) = 4 [pid 4995] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [ 79.704402][ T5068] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 79.714456][ T5072] loop3: detected capacity change from 0 to 8192 [pid 4996] fstat(4, [pid 4995] unlink("./5/binderfs" [pid 4996] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4995] <... unlink resumed>) = 0 [pid 4996] getdents64(4, [pid 4995] umount2("./5/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4996] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4996] getdents64(4, [pid 5068] close(4 [pid 4996] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 5068] <... close resumed>) = 0 [pid 4996] close(4) = 0 [pid 4996] rmdir("./5/file0" [pid 5068] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4996] <... rmdir resumed>) = 0 [pid 5068] <... openat resumed>) = 4 [pid 4996] getdents64(3, [pid 5068] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 4996] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 4996] close(3) = 0 [pid 4996] rmdir("./5") = 0 [pid 4996] mkdir("./6", 0777) = 0 [pid 4996] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 4996] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 4996] close(3) = 0 [pid 4996] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570865d0) = 5077 [pid 5068] <... mmap resumed>) = 0x20000000 [pid 5074] <... ioctl resumed>) = 0 [pid 5074] close(3) = 0 [pid 5068] ioctl(4, FS_IOC_GETVERSION [pid 5074] mkdir("./file0", 0777) = 0 [pid 5068] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5074] mount("/dev/loop2", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5068] exit_group(0) = ? [pid 5068] +++ exited with 0 +++ [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5068, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=14 /* 0.14 s */} --- [ 79.771244][ T5074] loop2: detected capacity change from 0 to 8192 [ 79.786636][ T5072] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 4999] umount2("./5", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 4999] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] getdents64(3, 0x555557087620 /* 4 entries */, 32768) = 112 [pid 4999] umount2("./5/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5077 attached [pid 5077] chdir("./6") = 0 [pid 4999] lstat("./5/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4999] unlink("./5/binderfs") = 0 [pid 4999] umount2("./5/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [ 79.819176][ T5074] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 79.832446][ T5072] REISERFS (device loop3): found reiserfs format "3.5" with non-standard journal [ 79.859137][ T5072] REISERFS (device loop3): using ordered data mode [ 79.865792][ T5072] reiserfs: using flush barriers [pid 5077] setpgid(0, 0) = 0 [pid 5077] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5071] <... write resumed>) = 4194304 [pid 5071] munmap(0x7faaa11e5000, 4194304 [pid 5077] <... openat resumed>) = 3 [pid 5077] write(3, "1000", 4 [pid 5071] <... munmap resumed>) = 0 [pid 4999] <... umount2 resumed>) = 0 [pid 5071] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5077] <... write resumed>) = 4 [pid 5071] <... openat resumed>) = 4 [pid 4999] umount2("./5/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] ioctl(4, LOOP_SET_FD, 3 [pid 5077] close(3 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] <... ioctl resumed>) = 0 [pid 5071] close(3) = 0 [pid 5071] mkdir("./file0", 0777 [pid 5077] <... close resumed>) = 0 [pid 4999] lstat("./5/file0", [pid 5077] symlink("/dev/binderfs", "./binderfs" [pid 4999] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] <... mkdir resumed>) = 0 [pid 5077] <... symlink resumed>) = 0 [pid 5071] mount("/dev/loop5", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5077] memfd_create("syzkaller", 0) = 3 [pid 4999] umount2("./5/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7faaa11e5000 [ 79.872723][ T5072] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 79.897181][ T5074] REISERFS (device loop2): found reiserfs format "3.5" with non-standard journal [ 79.909900][ T5071] loop5: detected capacity change from 0 to 8192 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./5/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 4999] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] getdents64(4, 0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4999] getdents64(4, 0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4999] close(4) = 0 [ 79.923932][ T5074] REISERFS (device loop2): using ordered data mode [ 79.930733][ T5074] reiserfs: using flush barriers [ 79.939799][ T5074] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 79.940665][ T5072] REISERFS (device loop3): checking transaction log (loop3) [ 79.956975][ T5074] REISERFS (device loop2): checking transaction log (loop2) [pid 4999] rmdir("./5/file0") = 0 [pid 4999] getdents64(3, 0x555557087620 /* 0 entries */, 32768) = 0 [pid 4999] close(3 [pid 4995] <... umount2 resumed>) = 0 [pid 4999] <... close resumed>) = 0 [pid 4999] rmdir("./5") = 0 [pid 4999] mkdir("./6", 0777) = 0 [pid 4999] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 4999] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 4999] close(3) = 0 [pid 4999] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570865d0) = 5080 [ 79.973722][ T5074] REISERFS (device loop2): Using tea hash to sort names [ 79.984036][ T5071] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 80.006465][ T5074] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 5074] <... mount resumed>) = 0 [pid 5074] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY./strace-static-x86_64: Process 5080 attached [pid 5077] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5074] <... openat resumed>) = 3 [pid 4995] umount2("./5/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] chdir("./6" [pid 5074] chdir("./file0" [pid 4995] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] <... chdir resumed>) = 0 [pid 5074] <... chdir resumed>) = 0 [pid 4995] lstat("./5/file0", [pid 5080] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5074] ioctl(4, LOOP_CLR_FD [pid 4995] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5080] <... prctl resumed>) = 0 [pid 5074] <... ioctl resumed>) = 0 [pid 4995] umount2("./5/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] setpgid(0, 0 [pid 5074] close(4 [pid 4995] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5080] <... setpgid resumed>) = 0 [pid 5074] <... close resumed>) = 0 [pid 4995] openat(AT_FDCWD, "./5/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5080] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5074] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4995] <... openat resumed>) = 4 [pid 5080] <... openat resumed>) = 3 [pid 5074] <... openat resumed>) = 4 [ 80.016877][ T5071] REISERFS (device loop5): found reiserfs format "3.5" with non-standard journal [ 80.027059][ T5071] REISERFS (device loop5): using ordered data mode [ 80.033603][ T5071] reiserfs: using flush barriers [ 80.045253][ T5071] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 80.064068][ T5072] REISERFS (device loop3): Using tea hash to sort names [pid 4995] fstat(4, [pid 5080] write(3, "1000", 4 [pid 5074] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 4995] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5080] <... write resumed>) = 4 [pid 5074] <... mmap resumed>) = 0x20000000 [pid 4995] getdents64(4, [pid 5080] close(3 [pid 5074] ioctl(4, FS_IOC_GETVERSION [pid 4995] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 5080] <... close resumed>) = 0 [pid 5074] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 4995] getdents64(4, [pid 5080] symlink("/dev/binderfs", "./binderfs" [pid 5074] exit_group(0 [pid 4995] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 5080] <... symlink resumed>) = 0 [pid 5074] <... exit_group resumed>) = ? [pid 4995] close(4 [pid 5080] memfd_create("syzkaller", 0 [pid 5074] +++ exited with 0 +++ [pid 4995] <... close resumed>) = 0 [pid 5080] <... memfd_create resumed>) = 3 [pid 4995] rmdir("./5/file0" [pid 5080] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 4997] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5074, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- [pid 4995] <... rmdir resumed>) = 0 [pid 5080] <... mmap resumed>) = 0x7faaa11e5000 [pid 4995] getdents64(3, [pid 4997] umount2("./5", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4997] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 4997] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4997] getdents64(3, 0x555557087620 /* 4 entries */, 32768) = 112 [pid 4995] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 4997] umount2("./5/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4997] lstat("./5/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4997] unlink("./5/binderfs") = 0 [pid 4997] umount2("./5/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4995] close(3) = 0 [ 80.087767][ T5072] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 80.115462][ T5071] REISERFS (device loop5): checking transaction log (loop5) [pid 4995] rmdir("./5") = 0 [pid 5080] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5072] <... mount resumed>) = 0 [pid 4995] mkdir("./6", 0777 [pid 5072] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 4995] <... mkdir resumed>) = 0 [pid 4995] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5072] <... openat resumed>) = 3 [pid 5071] <... mount resumed>) = 0 [pid 4995] <... openat resumed>) = 3 [pid 5072] chdir("./file0" [pid 5071] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5072] <... chdir resumed>) = 0 [pid 5071] <... openat resumed>) = 3 [pid 4995] ioctl(3, LOOP_CLR_FD [pid 5072] ioctl(4, LOOP_CLR_FD) = 0 [pid 5071] chdir("./file0" [pid 4995] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5072] close(4) = 0 [pid 5071] <... chdir resumed>) = 0 [pid 4995] close(3 [pid 5072] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5071] ioctl(4, LOOP_CLR_FD [pid 4997] <... umount2 resumed>) = 0 [pid 5072] <... openat resumed>) = 4 [pid 4997] umount2("./5/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4995] <... close resumed>) = 0 [pid 5072] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 5071] <... ioctl resumed>) = 0 [ 80.140683][ T5071] REISERFS (device loop5): Using tea hash to sort names [ 80.151494][ T5071] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 4997] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] <... mmap resumed>) = 0x20000000 [pid 5071] close(4 [pid 4997] lstat("./5/file0", [pid 4995] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5072] ioctl(4, FS_IOC_GETVERSION [pid 5071] <... close resumed>) = 0 [pid 5072] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 4997] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] exit_group(0 [pid 5071] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4997] umount2("./5/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... exit_group resumed>) = ? [pid 4997] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5081 attached [pid 5077] <... write resumed>) = 4194304 [pid 5072] +++ exited with 0 +++ [pid 5071] <... openat resumed>) = 4 [pid 4997] openat(AT_FDCWD, "./5/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4995] <... clone resumed>, child_tidptr=0x5555570865d0) = 5081 [pid 5081] chdir("./6" [pid 5077] munmap(0x7faaa11e5000, 4194304 [pid 5071] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5072, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- [pid 4997] <... openat resumed>) = 4 [pid 4997] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] <... mmap resumed>) = 0x20000000 [pid 4998] umount2("./5", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4997] getdents64(4, [pid 5071] ioctl(4, FS_IOC_GETVERSION [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4997] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 5077] <... munmap resumed>) = 0 [pid 5071] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 4998] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4997] getdents64(4, [pid 5071] exit_group(0 [pid 4998] <... openat resumed>) = 3 [pid 5081] <... chdir resumed>) = 0 [pid 4997] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 5071] <... exit_group resumed>) = ? [pid 4998] fstat(3, [pid 4997] close(4 [pid 4998] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4997] <... close resumed>) = 0 [pid 5081] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5071] +++ exited with 0 +++ [pid 4998] getdents64(3, [pid 4997] rmdir("./5/file0" [pid 5081] <... prctl resumed>) = 0 [pid 5080] <... write resumed>) = 4194304 [pid 5077] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5071, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- [pid 4998] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 4997] <... rmdir resumed>) = 0 [pid 5081] setpgid(0, 0 [pid 5077] <... openat resumed>) = 4 [pid 5000] restart_syscall(<... resuming interrupted clone ...> [pid 4998] umount2("./5/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4997] getdents64(3, [pid 5081] <... setpgid resumed>) = 0 [pid 5077] ioctl(4, LOOP_SET_FD, 3 [pid 5000] <... restart_syscall resumed>) = 0 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4997] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 5081] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4998] lstat("./5/binderfs", [pid 4997] close(3 [pid 4998] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4997] <... close resumed>) = 0 [pid 4998] unlink("./5/binderfs" [pid 4997] rmdir("./5" [pid 4998] <... unlink resumed>) = 0 [pid 4997] <... rmdir resumed>) = 0 [pid 4998] umount2("./5/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4997] mkdir("./6", 0777 [pid 5081] <... openat resumed>) = 3 [pid 5080] munmap(0x7faaa11e5000, 4194304 [pid 4997] <... mkdir resumed>) = 0 [pid 5081] write(3, "1000", 4 [pid 5080] <... munmap resumed>) = 0 [pid 5077] <... ioctl resumed>) = 0 [pid 4997] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5081] <... write resumed>) = 4 [pid 5080] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5077] close(3 [pid 5000] umount2("./5", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4997] <... openat resumed>) = 3 [pid 4997] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 4997] close(3 [pid 5081] close(3 [pid 5080] <... openat resumed>) = 4 [pid 5077] <... close resumed>) = 0 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4997] <... close resumed>) = 0 [pid 5081] <... close resumed>) = 0 [pid 5080] ioctl(4, LOOP_SET_FD, 3 [pid 5077] mkdir("./file0", 0777 [pid 5000] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4997] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5081] symlink("/dev/binderfs", "./binderfs" [pid 4997] <... clone resumed>, child_tidptr=0x5555570865d0) = 5082 ./strace-static-x86_64: Process 5082 attached [pid 5082] chdir("./6") = 0 [pid 5082] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5077] <... mkdir resumed>) = 0 [pid 5000] <... openat resumed>) = 3 [pid 5082] <... prctl resumed>) = 0 [pid 5082] setpgid(0, 0) = 0 [pid 5082] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] <... symlink resumed>) = 0 [pid 5077] mount("/dev/loop1", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5000] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5081] memfd_create("syzkaller", 0 [pid 5000] getdents64(3, [pid 5082] <... openat resumed>) = 3 [pid 5081] <... memfd_create resumed>) = 3 [pid 5000] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 4998] <... umount2 resumed>) = 0 [pid 5082] write(3, "1000", 4 [pid 5081] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5000] umount2("./5/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] umount2("./5/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5082] <... write resumed>) = 4 [pid 5080] <... ioctl resumed>) = 0 [ 80.242101][ T5077] loop1: detected capacity change from 0 to 8192 [ 80.273963][ T5080] loop4: detected capacity change from 0 to 8192 [pid 5082] close(3 [pid 5081] <... mmap resumed>) = 0x7faaa11e5000 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5082] <... close resumed>) = 0 [pid 4998] lstat("./5/file0", [pid 5082] symlink("/dev/binderfs", "./binderfs" [pid 4998] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5082] <... symlink resumed>) = 0 [pid 4998] umount2("./5/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5082] memfd_create("syzkaller", 0 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5082] <... memfd_create resumed>) = 3 [pid 4998] openat(AT_FDCWD, "./5/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5082] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 4998] <... openat resumed>) = 4 [pid 5082] <... mmap resumed>) = 0x7faaa11e5000 [pid 4998] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] lstat("./5/binderfs", [pid 4998] getdents64(4, 0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4998] getdents64(4, 0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4998] close(4) = 0 [pid 4998] rmdir("./5/file0") = 0 [pid 4998] getdents64(3, 0x555557087620 /* 0 entries */, 32768) = 0 [pid 4998] close(3) = 0 [pid 4998] rmdir("./5") = 0 [pid 4998] mkdir("./6", 0777) = 0 [pid 4998] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5000] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] unlink("./5/binderfs") = 0 [pid 5000] umount2("./5/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] close(3 [pid 4998] <... openat resumed>) = 3 [pid 4998] ioctl(3, LOOP_CLR_FD [pid 5080] <... close resumed>) = 0 [pid 4998] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4998] close(3 [pid 5080] mkdir("./file0", 0777 [pid 4998] <... close resumed>) = 0 [pid 4998] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5080] <... mkdir resumed>) = 0 [pid 5080] mount("/dev/loop4", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 4998] <... clone resumed>, child_tidptr=0x5555570865d0) = 5084 ./strace-static-x86_64: Process 5084 attached [pid 5084] chdir("./6") = 0 [ 80.305444][ T5077] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 80.327867][ T5077] REISERFS (device loop1): found reiserfs format "3.5" with non-standard journal [pid 5084] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5084] setpgid(0, 0) = 0 [pid 5084] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5084] <... openat resumed>) = 3 [pid 5084] write(3, "1000", 4) = 4 [pid 5084] close(3) = 0 [pid 5082] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5084] symlink("/dev/binderfs", "./binderfs") = 0 [ 80.367715][ T5080] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 80.381137][ T5077] REISERFS (device loop1): using ordered data mode [ 80.404915][ T5077] reiserfs: using flush barriers [pid 5084] memfd_create("syzkaller", 0) = 3 [pid 5084] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7faaa11e5000 [ 80.412322][ T5077] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 80.454100][ T5077] REISERFS (device loop1): checking transaction log (loop1) [pid 5084] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5000] <... umount2 resumed>) = 0 [ 80.457410][ T5080] REISERFS (device loop4): found reiserfs format "3.5" with non-standard journal [ 80.478402][ T5077] REISERFS (device loop1): Using tea hash to sort names [ 80.496649][ T5077] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [pid 5084] <... write resumed>) = 4194304 [pid 5077] <... mount resumed>) = 0 [pid 5084] munmap(0x7faaa11e5000, 4194304 [pid 5077] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5084] <... munmap resumed>) = 0 [pid 5077] <... openat resumed>) = 3 [pid 5084] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5077] chdir("./file0" [pid 5084] <... openat resumed>) = 4 [pid 5077] <... chdir resumed>) = 0 [pid 5084] ioctl(4, LOOP_SET_FD, 3 [pid 5077] ioctl(4, LOOP_CLR_FD [pid 5084] <... ioctl resumed>) = 0 [pid 5077] <... ioctl resumed>) = 0 [pid 5084] close(3) = 0 [ 80.522323][ T5080] REISERFS (device loop4): using ordered data mode [ 80.529527][ T5080] reiserfs: using flush barriers [ 80.539542][ T5080] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 80.551030][ T5084] loop3: detected capacity change from 0 to 8192 [ 80.563040][ T5080] REISERFS (device loop4): checking transaction log (loop4) [pid 5084] mkdir("./file0", 0777) = 0 [pid 5077] close(4 [pid 5084] mount("/dev/loop3", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5080] <... mount resumed>) = 0 [pid 5077] <... close resumed>) = 0 [pid 5000] umount2("./5/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5077] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5080] <... openat resumed>) = 3 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... openat resumed>) = 4 [pid 5080] chdir("./file0" [pid 5000] lstat("./5/file0", [pid 5080] <... chdir resumed>) = 0 [pid 5000] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5080] ioctl(4, LOOP_CLR_FD [pid 5077] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 5000] umount2("./5/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5080] <... ioctl resumed>) = 0 [pid 5081] <... write resumed>) = 4194304 [pid 5080] close(4 [pid 5077] <... mmap resumed>) = 0x20000000 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5081] munmap(0x7faaa11e5000, 4194304 [pid 5080] <... close resumed>) = 0 [pid 5081] <... munmap resumed>) = 0 [pid 5080] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5077] ioctl(4, FS_IOC_GETVERSION [pid 5000] openat(AT_FDCWD, "./5/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5081] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5080] <... openat resumed>) = 4 [pid 5077] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [ 80.579347][ T5080] REISERFS (device loop4): Using tea hash to sort names [ 80.587302][ T5080] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 80.615040][ T5084] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5000] <... openat resumed>) = 4 [pid 5081] <... openat resumed>) = 4 [pid 5080] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 5077] exit_group(0 [pid 5000] fstat(4, [pid 5081] ioctl(4, LOOP_SET_FD, 3 [pid 5080] <... mmap resumed>) = 0x20000000 [pid 5077] <... exit_group resumed>) = ? [pid 5000] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5080] ioctl(4, FS_IOC_GETVERSION [pid 5077] +++ exited with 0 +++ [pid 5000] getdents64(4, [pid 5080] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5000] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4996] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5077, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- [pid 5080] exit_group(0 [pid 5000] getdents64(4, [pid 5081] <... ioctl resumed>) = 0 [pid 5080] <... exit_group resumed>) = ? [pid 5000] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 5082] <... write resumed>) = 4194304 [pid 5081] close(3 [pid 5080] +++ exited with 0 +++ [pid 5000] close(4 [pid 4996] umount2("./6", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] <... close resumed>) = 0 [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5080, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=16 /* 0.16 s */} --- [pid 4996] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] rmdir("./5/file0" [pid 4999] restart_syscall(<... resuming interrupted clone ...> [pid 4996] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5000] <... rmdir resumed>) = 0 [pid 4999] <... restart_syscall resumed>) = 0 [pid 4996] <... openat resumed>) = 3 [pid 5000] getdents64(3, [pid 4996] fstat(3, [pid 5000] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [ 80.640818][ T5084] REISERFS (device loop3): found reiserfs format "3.5" with non-standard journal [ 80.645509][ T5081] loop0: detected capacity change from 0 to 8192 [ 80.650999][ T5084] REISERFS (device loop3): using ordered data mode [ 80.676847][ T5084] reiserfs: using flush barriers [pid 4996] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] close(3 [pid 4999] umount2("./6", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4996] getdents64(3, [pid 5000] <... close resumed>) = 0 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4996] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 5082] munmap(0x7faaa11e5000, 4194304 [pid 5081] <... close resumed>) = 0 [pid 5000] rmdir("./5" [pid 4999] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4996] umount2("./6/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5082] <... munmap resumed>) = 0 [pid 5081] mkdir("./file0", 0777 [pid 5000] <... rmdir resumed>) = 0 [pid 4999] <... openat resumed>) = 3 [pid 4996] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5082] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5081] <... mkdir resumed>) = 0 [pid 5000] mkdir("./6", 0777 [pid 4999] fstat(3, [pid 4996] lstat("./6/binderfs", [pid 5082] <... openat resumed>) = 4 [pid 5081] mount("/dev/loop0", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5000] <... mkdir resumed>) = 0 [pid 4999] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4996] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5082] ioctl(4, LOOP_SET_FD, 3 [pid 5000] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4999] getdents64(3, [pid 4996] unlink("./6/binderfs" [pid 5000] <... openat resumed>) = 3 [pid 4999] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 4996] <... unlink resumed>) = 0 [pid 5000] ioctl(3, LOOP_CLR_FD [pid 4999] umount2("./6/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4996] umount2("./6/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] close(3 [pid 4999] lstat("./6/binderfs", [pid 5000] <... close resumed>) = 0 [pid 4999] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [ 80.683352][ T5084] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 80.701786][ T5084] REISERFS (device loop3): checking transaction log (loop3) [ 80.710615][ T5084] REISERFS (device loop3): Using tea hash to sort names [ 80.714195][ T5082] loop2: detected capacity change from 0 to 8192 [pid 4999] unlink("./6/binderfs"./strace-static-x86_64: Process 5088 attached [pid 5084] <... mount resumed>) = 0 [pid 5082] <... ioctl resumed>) = 0 [pid 4999] <... unlink resumed>) = 0 [pid 5088] chdir("./6" [pid 5084] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5082] close(3 [pid 5000] <... clone resumed>, child_tidptr=0x5555570865d0) = 5088 [pid 4999] umount2("./6/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5088] <... chdir resumed>) = 0 [pid 5084] <... openat resumed>) = 3 [pid 5082] <... close resumed>) = 0 [pid 5088] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5084] chdir("./file0" [pid 5082] mkdir("./file0", 0777 [pid 5088] <... prctl resumed>) = 0 [pid 5084] <... chdir resumed>) = 0 [pid 5082] <... mkdir resumed>) = 0 [pid 5088] setpgid(0, 0 [pid 5084] ioctl(4, LOOP_CLR_FD [pid 5082] mount("/dev/loop2", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5088] <... setpgid resumed>) = 0 [pid 5084] <... ioctl resumed>) = 0 [pid 5088] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5084] close(4 [pid 5088] <... openat resumed>) = 3 [pid 5084] <... close resumed>) = 0 [pid 5088] write(3, "1000", 4 [pid 5084] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5088] <... write resumed>) = 4 [pid 5084] <... openat resumed>) = 4 [pid 5088] close(3 [pid 5084] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 5088] <... close resumed>) = 0 [pid 5084] <... mmap resumed>) = 0x20000000 [ 80.739198][ T5081] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 80.739975][ T5084] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [pid 4999] <... umount2 resumed>) = 0 [pid 5088] symlink("/dev/binderfs", "./binderfs" [pid 5084] ioctl(4, FS_IOC_GETVERSION [pid 5088] <... symlink resumed>) = 0 [pid 5084] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 4999] umount2("./6/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5088] memfd_create("syzkaller", 0 [pid 5084] exit_group(0 [pid 5088] <... memfd_create resumed>) = 3 [pid 5084] <... exit_group resumed>) = ? [pid 5088] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5084] +++ exited with 0 +++ [pid 5088] <... mmap resumed>) = 0x7faaa11e5000 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] lstat("./6/file0", [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5084, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=13 /* 0.13 s */} --- [pid 4999] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] umount2("./6/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] umount2("./6", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] openat(AT_FDCWD, "./6/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] <... openat resumed>) = 4 [pid 4998] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4999] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] <... openat resumed>) = 3 [pid 4999] getdents64(4, [pid 4998] fstat(3, [pid 4999] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4998] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] getdents64(4, [pid 4998] getdents64(3, [pid 4999] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4999] close(4 [pid 4998] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 4999] <... close resumed>) = 0 [pid 4998] umount2("./6/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] rmdir("./6/file0" [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] <... rmdir resumed>) = 0 [pid 4999] getdents64(3, [pid 4998] lstat("./6/binderfs", [pid 4999] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [ 80.796636][ T5081] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 80.796717][ T5082] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 80.806416][ T5081] REISERFS (device loop0): using ordered data mode [pid 4998] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4999] close(3 [pid 4998] unlink("./6/binderfs" [pid 4999] <... close resumed>) = 0 [pid 4998] <... unlink resumed>) = 0 [pid 4999] rmdir("./6" [pid 4998] umount2("./6/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] <... rmdir resumed>) = 0 [pid 4999] mkdir("./7", 0777) = 0 [pid 4999] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 4999] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 4999] close(3) = 0 [pid 4999] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570865d0) = 5090 [ 80.857495][ T5081] reiserfs: using flush barriers [pid 4996] <... umount2 resumed>) = 0 ./strace-static-x86_64: Process 5090 attached [pid 5090] chdir("./7") = 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 [ 80.906854][ T5081] 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 [ 80.925283][ T5081] REISERFS (device loop0): checking transaction log (loop0) [ 80.935622][ T5081] REISERFS (device loop0): Using tea hash to sort names [ 80.940873][ T5082] REISERFS (device loop2): found reiserfs format "3.5" with non-standard journal [pid 5090] write(3, "1000", 4) = 4 [pid 5088] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5090] close(3) = 0 [pid 5090] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5090] memfd_create("syzkaller", 0) = 3 [pid 5090] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7faaa11e5000 [pid 5081] <... mount resumed>) = 0 [pid 4998] <... umount2 resumed>) = 0 [pid 5081] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 4998] umount2("./6/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./6/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] umount2("./6/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5081] chdir("./file0" [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./6/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4996] umount2("./6/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] <... openat resumed>) = 4 [pid 4996] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] fstat(4, [pid 4996] lstat("./6/file0", [pid 4998] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] getdents64(4, [pid 4996] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5081] <... chdir resumed>) = 0 [pid 4998] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 5081] ioctl(4, LOOP_CLR_FD [pid 4998] getdents64(4, [pid 4996] umount2("./6/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5081] <... ioctl resumed>) = 0 [pid 4998] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4996] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] close(4 [pid 4996] openat(AT_FDCWD, "./6/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4998] <... close resumed>) = 0 [pid 4996] <... openat resumed>) = 4 [pid 4998] rmdir("./6/file0" [pid 4996] fstat(4, [pid 4998] <... rmdir resumed>) = 0 [pid 4996] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] getdents64(3, [pid 4996] getdents64(4, [pid 4998] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 4996] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 5081] close(4 [ 80.943671][ T5081] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 4998] close(3 [pid 4996] getdents64(4, [pid 4998] <... close resumed>) = 0 [pid 4996] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 5081] <... close resumed>) = 0 [pid 4998] rmdir("./6" [pid 4996] close(4 [pid 4998] <... rmdir resumed>) = 0 [pid 4996] <... close resumed>) = 0 [pid 4998] mkdir("./7", 0777 [pid 4996] rmdir("./6/file0" [pid 4998] <... mkdir resumed>) = 0 [pid 4996] <... rmdir resumed>) = 0 [pid 4998] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4996] getdents64(3, [pid 4998] <... openat resumed>) = 3 [pid 4996] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 4998] ioctl(3, LOOP_CLR_FD [pid 4996] close(3 [pid 5081] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4998] <... ioctl resumed>) = 0 [pid 4996] <... close resumed>) = 0 [pid 5081] <... openat resumed>) = 4 [pid 4998] close(3 [pid 4996] rmdir("./6" [pid 5081] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 4996] <... rmdir resumed>) = 0 [pid 4996] mkdir("./7", 0777 [pid 5081] <... mmap resumed>) = 0x20000000 [pid 4996] <... mkdir resumed>) = 0 [pid 4996] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5081] ioctl(4, FS_IOC_GETVERSION [pid 4996] <... openat resumed>) = 3 [pid 4996] ioctl(3, LOOP_CLR_FD [pid 5081] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 4996] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4996] close(3 [pid 5081] exit_group(0 [pid 4996] <... close resumed>) = 0 [pid 5081] <... exit_group resumed>) = ? [pid 4996] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5081] +++ exited with 0 +++ [pid 4996] <... clone resumed>, child_tidptr=0x5555570865d0) = 5091 [pid 4995] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5081, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=16 /* 0.16 s */} --- [pid 4995] umount2("./6", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4995] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY./strace-static-x86_64: Process 5091 attached [ 81.002492][ T5082] REISERFS (device loop2): using ordered data mode ) = 3 [pid 5091] chdir("./7" [pid 4995] fstat(3, [pid 5091] <... chdir resumed>) = 0 [pid 4995] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5091] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4995] getdents64(3, [pid 5091] <... prctl resumed>) = 0 [pid 4995] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 5091] setpgid(0, 0 [pid 4995] umount2("./6/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5091] <... setpgid resumed>) = 0 [pid 4995] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5091] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4995] lstat("./6/binderfs", [pid 5091] <... openat resumed>) = 3 [pid 4995] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5091] write(3, "1000", 4 [pid 4995] unlink("./6/binderfs" [pid 5091] <... write resumed>) = 4 [pid 4995] <... unlink resumed>) = 0 [pid 5091] close(3 [pid 4995] umount2("./6/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5091] <... close resumed>) = 0 [pid 5091] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5091] memfd_create("syzkaller", 0) = 3 [pid 5091] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7faaa11e5000 [ 81.057996][ T5082] reiserfs: using flush barriers [pid 5090] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 4998] <... close resumed>) = 0 [pid 4998] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4995] <... umount2 resumed>) = 0 [pid 4998] <... clone resumed>, child_tidptr=0x5555570865d0) = 5092 [pid 4995] umount2("./6/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4995] lstat("./6/file0", ./strace-static-x86_64: Process 5092 attached [pid 5092] chdir("./7" [pid 4995] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5092] <... chdir resumed>) = 0 [ 81.095678][ T5082] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5092] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4995] umount2("./6/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5092] <... prctl resumed>) = 0 [pid 5092] setpgid(0, 0) = 0 [pid 5092] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4995] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5092] <... openat resumed>) = 3 [pid 5092] write(3, "1000", 4 [pid 4995] openat(AT_FDCWD, "./6/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5092] <... write resumed>) = 4 [pid 5092] close(3) = 0 [pid 5092] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4995] <... openat resumed>) = 4 [pid 5092] memfd_create("syzkaller", 0) = 3 [pid 4995] fstat(4, [pid 5092] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7faaa11e5000 [pid 4995] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4995] getdents64(4, 0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4995] getdents64(4, [pid 5088] <... write resumed>) = 4194304 [pid 4995] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4995] close(4 [pid 5088] munmap(0x7faaa11e5000, 4194304 [pid 4995] <... close resumed>) = 0 [pid 4995] rmdir("./6/file0" [pid 5088] <... munmap resumed>) = 0 [pid 4995] <... rmdir resumed>) = 0 [pid 4995] getdents64(3, [pid 5088] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [ 81.166811][ T5082] REISERFS (device loop2): checking transaction log (loop2) [ 81.194913][ T5082] REISERFS (device loop2): Using tea hash to sort names [ 81.202849][ T5082] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 5088] ioctl(4, LOOP_SET_FD, 3 [pid 5091] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5082] <... mount resumed>) = 0 [pid 4995] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 5082] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 4995] close(3) = 0 [pid 5082] <... openat resumed>) = 3 [pid 4995] rmdir("./6" [pid 5082] chdir("./file0") = 0 [pid 4995] <... rmdir resumed>) = 0 [pid 5082] ioctl(4, LOOP_CLR_FD) = 0 [pid 4995] mkdir("./7", 0777 [pid 5082] close(4 [pid 4995] <... mkdir resumed>) = 0 [pid 5082] <... close resumed>) = 0 [pid 4995] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5082] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4995] <... openat resumed>) = 3 [pid 5092] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5082] <... openat resumed>) = 4 [pid 5088] <... ioctl resumed>) = 0 [pid 5082] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 4995] ioctl(3, LOOP_CLR_FD [pid 5088] close(3) = 0 [pid 5088] mkdir("./file0", 0777) = 0 [pid 5082] <... mmap resumed>) = 0x20000000 [pid 4995] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5088] mount("/dev/loop5", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5082] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [ 81.231675][ T5088] loop5: detected capacity change from 0 to 8192 [pid 4995] close(3 [pid 5082] exit_group(0 [pid 4995] <... close resumed>) = 0 [pid 5082] <... exit_group resumed>) = ? [pid 4995] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5082] +++ exited with 0 +++ [pid 4997] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5082, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} --- [pid 4997] umount2("./6", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4997] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 4997] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4997] getdents64(3, 0x555557087620 /* 4 entries */, 32768) = 112 [pid 4997] umount2("./6/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4997] lstat("./6/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4997] unlink("./6/binderfs") = 0 [pid 4997] umount2("./6/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4995] <... clone resumed>, child_tidptr=0x5555570865d0) = 5094 ./strace-static-x86_64: Process 5094 attached [pid 5094] chdir("./7" [pid 5091] <... write resumed>) = 4194304 [ 81.283860][ T5088] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5094] <... chdir resumed>) = 0 [pid 5091] munmap(0x7faaa11e5000, 4194304 [pid 5094] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5094] setpgid(0, 0) = 0 [pid 5094] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5091] <... munmap resumed>) = 0 [pid 5094] <... openat resumed>) = 3 [pid 5091] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5094] write(3, "1000", 4 [pid 5091] <... openat resumed>) = 4 [pid 5094] <... write resumed>) = 4 [pid 5091] ioctl(4, LOOP_SET_FD, 3 [ 81.325419][ T5088] REISERFS (device loop5): found reiserfs format "3.5" with non-standard journal [ 81.334673][ T5088] REISERFS (device loop5): using ordered data mode [ 81.343322][ T5088] reiserfs: using flush barriers [ 81.352185][ T5088] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 81.357217][ T5091] loop1: detected capacity change from 0 to 8192 [pid 5090] <... write resumed>) = 4194304 [pid 5094] close(3 [pid 5091] <... ioctl resumed>) = 0 [pid 5091] close(3) = 0 [pid 5091] mkdir("./file0", 0777) = 0 [pid 5091] mount("/dev/loop1", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5094] <... close resumed>) = 0 [pid 5094] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5090] munmap(0x7faaa11e5000, 4194304 [pid 5094] memfd_create("syzkaller", 0 [pid 5090] <... munmap resumed>) = 0 [pid 5094] <... memfd_create resumed>) = 3 [pid 5090] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5094] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5090] <... openat resumed>) = 4 [ 81.368821][ T5088] REISERFS (device loop5): checking transaction log (loop5) [ 81.386716][ T5088] REISERFS (device loop5): Using tea hash to sort names [ 81.394052][ T5088] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 5094] <... mmap resumed>) = 0x7faaa11e5000 [pid 5090] ioctl(4, LOOP_SET_FD, 3 [pid 5092] <... write resumed>) = 4194304 [pid 5090] <... ioctl resumed>) = 0 [pid 5092] munmap(0x7faaa11e5000, 4194304 [pid 5090] close(3) = 0 [pid 5092] <... munmap resumed>) = 0 [pid 5090] mkdir("./file0", 0777 [pid 5092] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5090] <... mkdir resumed>) = 0 [pid 5092] <... openat resumed>) = 4 [pid 5090] mount("/dev/loop4", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [ 81.414672][ T5091] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 81.445739][ T5090] loop4: detected capacity change from 0 to 8192 [pid 5092] ioctl(4, LOOP_SET_FD, 3 [pid 5094] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5092] <... ioctl resumed>) = 0 [pid 5088] <... mount resumed>) = 0 [pid 4997] <... umount2 resumed>) = 0 [pid 5092] close(3 [pid 5088] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 4997] umount2("./6/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5092] <... close resumed>) = 0 [pid 5088] <... openat resumed>) = 3 [pid 4997] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5092] mkdir("./file0", 0777 [pid 5088] chdir("./file0" [pid 4997] lstat("./6/file0", [pid 5092] <... mkdir resumed>) = 0 [pid 5088] <... chdir resumed>) = 0 [pid 4997] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5092] mount("/dev/loop3", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5088] ioctl(4, LOOP_CLR_FD [pid 4997] umount2("./6/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5088] <... ioctl resumed>) = 0 [pid 4997] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5088] close(4 [ 81.481050][ T5092] loop3: detected capacity change from 0 to 8192 [ 81.492614][ T5091] REISERFS (device loop1): found reiserfs format "3.5" with non-standard journal [ 81.503651][ T5090] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 81.543847][ T5091] REISERFS (device loop1): using ordered data mode [ 81.551260][ T5091] reiserfs: using flush barriers [ 81.557763][ T5090] REISERFS (device loop4): found reiserfs format "3.5" with non-standard journal [ 81.567296][ T5091] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 4997] openat(AT_FDCWD, "./6/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5088] <... close resumed>) = 0 [pid 4997] <... openat resumed>) = 4 [pid 5088] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4997] fstat(4, [pid 5088] <... openat resumed>) = 4 [pid 4997] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5088] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 4997] getdents64(4, [pid 5088] <... mmap resumed>) = 0x20000000 [pid 4997] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 5088] ioctl(4, FS_IOC_GETVERSION [pid 4997] getdents64(4, [pid 5088] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 4997] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 5088] exit_group(0 [pid 4997] close(4 [pid 5088] <... exit_group resumed>) = ? [pid 4997] <... close resumed>) = 0 [pid 5088] +++ exited with 0 +++ [pid 4997] rmdir("./6/file0" [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5088, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=13 /* 0.13 s */} --- [pid 4997] <... rmdir resumed>) = 0 [pid 4997] getdents64(3, 0x555557087620 /* 0 entries */, 32768) = 0 [ 81.585226][ T5092] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 81.597130][ T5090] REISERFS (device loop4): using ordered data mode [ 81.604898][ T5090] reiserfs: using flush barriers [ 81.615259][ T5090] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 81.617081][ T1644] cfg80211: failed to load regulatory.db [ 81.631885][ T5090] REISERFS (device loop4): checking transaction log (loop4) [pid 4997] close(3) = 0 [pid 4997] rmdir("./6") = 0 [pid 4997] mkdir("./7", 0777) = 0 [pid 4997] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 4997] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 4997] close(3) = 0 [pid 4997] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570865d0) = 5098 ./strace-static-x86_64: Process 5098 attached [pid 5090] <... mount resumed>) = 0 [pid 5000] umount2("./6", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5098] chdir("./7" [pid 5090] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5098] <... chdir resumed>) = 0 [pid 5090] <... openat resumed>) = 3 [pid 5000] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5098] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5098] setpgid(0, 0) = 0 [pid 5098] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5098] write(3, "1000", 4) = 4 [pid 5098] close(3) = 0 [pid 5098] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5098] memfd_create("syzkaller", 0) = 3 [pid 5090] chdir("./file0" [pid 5098] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5000] <... openat resumed>) = 3 [pid 5098] <... mmap resumed>) = 0x7faaa11e5000 [pid 5090] <... chdir resumed>) = 0 [ 81.645444][ T5090] REISERFS (device loop4): Using tea hash to sort names [ 81.652723][ T5090] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 81.663888][ T5091] REISERFS (device loop1): checking transaction log (loop1) [ 81.673292][ T5092] REISERFS (device loop3): found reiserfs format "3.5" with non-standard journal [ 81.684543][ T5092] REISERFS (device loop3): using ordered data mode [pid 5000] fstat(3, [pid 5090] ioctl(4, LOOP_CLR_FD [pid 5000] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5090] <... ioctl resumed>) = 0 [pid 5000] getdents64(3, [pid 5090] close(4 [pid 5000] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 5090] <... close resumed>) = 0 [pid 5000] umount2("./6/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5090] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5090] <... openat resumed>) = 4 [pid 5000] lstat("./6/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5090] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 5000] unlink("./6/binderfs") = 0 [pid 5090] <... mmap resumed>) = 0x20000000 [pid 5000] umount2("./6/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5090] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5090] exit_group(0) = ? [ 81.691913][ T5092] reiserfs: using flush barriers [ 81.701634][ T5092] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 81.725407][ T5091] REISERFS (device loop1): Using tea hash to sort names [ 81.732739][ T5091] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [pid 5090] +++ exited with 0 +++ [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5090, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=14 /* 0.14 s */} --- [pid 4999] umount2("./7", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 4999] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] getdents64(3, 0x555557087620 /* 4 entries */, 32768) = 112 [pid 4999] umount2("./7/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] lstat("./7/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4999] unlink("./7/binderfs") = 0 [pid 4999] umount2("./7/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5091] <... mount resumed>) = 0 [pid 5091] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5091] chdir("./file0") = 0 [pid 5091] ioctl(4, LOOP_CLR_FD) = 0 [ 81.765460][ T5092] REISERFS (device loop3): checking transaction log (loop3) [pid 5091] close(4) = 0 [pid 5091] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5091] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0) = 0x20000000 [pid 5092] <... mount resumed>) = 0 [pid 5091] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5091] exit_group(0) = ? [pid 5091] +++ exited with 0 +++ [pid 5092] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 4996] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5091, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=11 /* 0.11 s */} --- [pid 5094] <... write resumed>) = 4194304 [pid 5092] <... openat resumed>) = 3 [pid 5094] munmap(0x7faaa11e5000, 4194304 [pid 5092] chdir("./file0" [pid 4996] umount2("./7", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5092] <... chdir resumed>) = 0 [pid 5094] <... munmap resumed>) = 0 [pid 4996] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5092] ioctl(4, LOOP_CLR_FD [pid 4996] openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5092] <... ioctl resumed>) = 0 [pid 5092] close(4 [pid 4996] <... openat resumed>) = 3 [pid 5094] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5092] <... close resumed>) = 0 [pid 4996] fstat(3, [pid 5092] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4996] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5098] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5094] <... openat resumed>) = 4 [pid 5094] ioctl(4, LOOP_SET_FD, 3 [pid 5092] <... openat resumed>) = 4 [ 81.806098][ T5092] REISERFS (device loop3): Using tea hash to sort names [ 81.825049][ T5092] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [pid 4996] getdents64(3, [pid 5092] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 4999] <... umount2 resumed>) = 0 [pid 4996] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 5092] <... mmap resumed>) = 0x20000000 [pid 4999] umount2("./7/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4996] umount2("./7/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5092] ioctl(4, FS_IOC_GETVERSION [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4996] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5092] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 4999] lstat("./7/file0", [pid 4996] lstat("./7/binderfs", [pid 5092] exit_group(0 [pid 4999] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4996] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5092] <... exit_group resumed>) = ? [pid 4999] umount2("./7/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4996] unlink("./7/binderfs" [pid 5092] +++ exited with 0 +++ [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5092, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- [pid 4996] <... unlink resumed>) = 0 [pid 4999] openat(AT_FDCWD, "./7/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4996] umount2("./7/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] <... openat resumed>) = 4 [pid 4999] fstat(4, [pid 5094] <... ioctl resumed>) = 0 [pid 4999] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] getdents64(4, [pid 4998] umount2("./7", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4998] openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4999] getdents64(4, [pid 4998] <... openat resumed>) = 3 [pid 5094] close(3 [pid 4999] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4998] fstat(3, [pid 4999] close(4 [pid 4998] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5094] <... close resumed>) = 0 [pid 4999] <... close resumed>) = 0 [pid 4998] getdents64(3, [pid 5094] mkdir("./file0", 0777 [pid 4999] rmdir("./7/file0") = 0 [pid 4998] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 5094] <... mkdir resumed>) = 0 [pid 4999] getdents64(3, [pid 4998] umount2("./7/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 4998] lstat("./7/binderfs", [pid 5094] mount("/dev/loop0", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 4998] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4999] close(3) = 0 [ 81.878885][ T5094] loop0: detected capacity change from 0 to 8192 [pid 4998] unlink("./7/binderfs" [pid 4999] rmdir("./7" [pid 4998] <... unlink resumed>) = 0 [pid 4999] <... rmdir resumed>) = 0 [pid 4998] umount2("./7/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] mkdir("./8", 0777 [pid 5000] <... umount2 resumed>) = 0 [pid 4999] <... mkdir resumed>) = 0 [pid 5000] umount2("./6/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./6/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] umount2("./6/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./6/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5000] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] getdents64(4, 0x55555708f660 /* 2 entries */, 32768) = 48 [pid 5000] getdents64(4, [pid 4999] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5000] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 5000] close(4) = 0 [pid 4999] <... openat resumed>) = 3 [pid 5000] rmdir("./6/file0" [pid 4999] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 4999] close(3) = 0 [pid 4999] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570865d0) = 5100 [ 81.967151][ T5094] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5000] <... rmdir resumed>) = 0 [pid 5000] getdents64(3, 0x555557087620 /* 0 entries */, 32768) = 0 [pid 5000] close(3) = 0 [pid 5000] rmdir("./6") = 0 ./strace-static-x86_64: Process 5100 attached [pid 5000] mkdir("./7", 0777 [pid 5100] chdir("./8" [pid 5000] <... mkdir resumed>) = 0 [pid 5100] <... chdir resumed>) = 0 [pid 5000] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5100] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5000] <... openat resumed>) = 3 [pid 5100] <... prctl resumed>) = 0 [pid 5000] ioctl(3, LOOP_CLR_FD [pid 5100] setpgid(0, 0 [pid 5000] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5100] <... setpgid resumed>) = 0 [pid 5100] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5000] close(3 [pid 5100] write(3, "1000", 4 [pid 5000] <... close resumed>) = 0 [pid 5100] <... write resumed>) = 4 [pid 5000] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5101 attached [pid 5100] close(3) = 0 [pid 5101] chdir("./7" [pid 5100] symlink("/dev/binderfs", "./binderfs" [pid 5101] <... chdir resumed>) = 0 [pid 5100] <... symlink resumed>) = 0 [pid 5000] <... clone resumed>, child_tidptr=0x5555570865d0) = 5101 [pid 5101] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5100] memfd_create("syzkaller", 0 [pid 5101] <... prctl resumed>) = 0 [pid 5100] <... memfd_create resumed>) = 3 [pid 5101] setpgid(0, 0 [pid 5100] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5101] <... setpgid resumed>) = 0 [pid 5100] <... mmap resumed>) = 0x7faaa11e5000 [pid 5101] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5101] write(3, "1000", 4) = 4 [pid 5101] close(3) = 0 [pid 5101] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4996] <... umount2 resumed>) = 0 [pid 5101] memfd_create("syzkaller", 0 [pid 4996] umount2("./7/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5101] <... memfd_create resumed>) = 3 [pid 4996] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5101] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 4996] lstat("./7/file0", [pid 5101] <... mmap resumed>) = 0x7faaa11e5000 [pid 4996] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4996] umount2("./7/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4996] openat(AT_FDCWD, "./7/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 4996] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4996] getdents64(4, 0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4996] getdents64(4, 0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4996] close(4) = 0 [ 82.085783][ T5094] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [pid 4996] rmdir("./7/file0") = 0 [pid 5098] <... write resumed>) = 4194304 [pid 4996] getdents64(3, 0x555557087620 /* 0 entries */, 32768) = 0 [pid 4996] close(3) = 0 [pid 4996] rmdir("./7") = 0 [pid 4996] mkdir("./8", 0777) = 0 [pid 4996] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 4996] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 4996] close(3 [pid 5101] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 4996] <... close resumed>) = 0 [pid 4996] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570865d0) = 5102 [pid 5098] munmap(0x7faaa11e5000, 4194304) = 0 ./strace-static-x86_64: Process 5102 attached [pid 5102] chdir("./8") = 0 [pid 5102] prctl(PR_SET_PDEATHSIG, SIGKILL [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 [pid 5102] <... prctl resumed>) = 0 [pid 5102] setpgid(0, 0 [pid 5098] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5102] <... setpgid resumed>) = 0 [pid 5098] <... openat resumed>) = 4 [pid 5102] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [ 82.191391][ T5094] REISERFS (device loop0): using ordered data mode [pid 5098] ioctl(4, LOOP_SET_FD, 3 [pid 5102] <... openat resumed>) = 3 [pid 5102] write(3, "1000", 4) = 4 [pid 5102] close(3) = 0 [pid 5102] symlink("/dev/binderfs", "./binderfs") = 0 [ 82.232123][ T5098] loop2: detected capacity change from 0 to 8192 [ 82.243606][ T5094] reiserfs: using flush barriers [pid 5102] memfd_create("syzkaller", 0 [pid 5098] <... ioctl resumed>) = 0 [pid 5102] <... memfd_create resumed>) = 3 [pid 5102] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7faaa11e5000 [pid 5098] close(3) = 0 [pid 5098] mkdir("./file0", 0777) = 0 [ 82.268212][ T5094] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5098] mount("/dev/loop2", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 4998] <... umount2 resumed>) = 0 [pid 4998] umount2("./7/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./7/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] umount2("./7/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./7/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 4998] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] getdents64(4, 0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4998] getdents64(4, 0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4998] close(4) = 0 [pid 4998] rmdir("./7/file0") = 0 [pid 4998] getdents64(3, 0x555557087620 /* 0 entries */, 32768) = 0 [pid 4998] close(3) = 0 [pid 4998] rmdir("./7") = 0 [pid 4998] mkdir("./8", 0777) = 0 [pid 4998] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [ 82.304694][ T5098] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 4998] ioctl(3, LOOP_CLR_FD [pid 5102] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 4998] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4998] close(3 [pid 5101] <... write resumed>) = 4194304 [pid 5100] <... write resumed>) = 4194304 [pid 4998] <... close resumed>) = 0 [pid 5101] munmap(0x7faaa11e5000, 4194304 [pid 4998] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5101] <... munmap resumed>) = 0 [pid 4998] <... clone resumed>, child_tidptr=0x5555570865d0) = 5104 [ 82.366107][ T5098] REISERFS (device loop2): found reiserfs format "3.5" with non-standard journal [ 82.385957][ T5094] REISERFS (device loop0): checking transaction log (loop0) [ 82.395810][ T5094] REISERFS (device loop0): Using tea hash to sort names [ 82.398425][ T5098] REISERFS (device loop2): using ordered data mode [ 82.409995][ T5098] reiserfs: using flush barriers [pid 5100] munmap(0x7faaa11e5000, 4194304./strace-static-x86_64: Process 5104 attached [pid 5101] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5100] <... munmap resumed>) = 0 [pid 5104] chdir("./8" [pid 5101] <... openat resumed>) = 4 [pid 5104] <... chdir resumed>) = 0 [pid 5101] ioctl(4, LOOP_SET_FD, 3 [pid 5104] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5104] setpgid(0, 0) = 0 [pid 5104] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5101] <... ioctl resumed>) = 0 [pid 5104] <... openat resumed>) = 3 [pid 5101] close(3 [pid 5104] write(3, "1000", 4 [pid 5101] <... close resumed>) = 0 [pid 5104] <... write resumed>) = 4 [pid 5101] mkdir("./file0", 0777 [pid 5104] close(3 [pid 5101] <... mkdir resumed>) = 0 [pid 5104] <... close resumed>) = 0 [pid 5101] mount("/dev/loop5", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5104] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5104] memfd_create("syzkaller", 0) = 3 [pid 5104] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7faaa11e5000 [pid 5100] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5094] <... mount resumed>) = 0 [pid 5100] <... openat resumed>) = 4 [ 82.419107][ T5094] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 82.426687][ T5101] loop5: detected capacity change from 0 to 8192 [ 82.428277][ T5098] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 82.452051][ T5098] REISERFS (device loop2): checking transaction log (loop2) [pid 5094] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5100] ioctl(4, LOOP_SET_FD, 3 [pid 5094] <... openat resumed>) = 3 [pid 5094] chdir("./file0" [pid 5100] <... ioctl resumed>) = 0 [pid 5094] <... chdir resumed>) = 0 [pid 5100] close(3 [pid 5094] ioctl(4, LOOP_CLR_FD [pid 5100] <... close resumed>) = 0 [pid 5094] <... ioctl resumed>) = 0 [pid 5100] mkdir("./file0", 0777 [pid 5094] close(4 [pid 5100] <... mkdir resumed>) = 0 [pid 5098] <... mount resumed>) = 0 [pid 5094] <... close resumed>) = 0 [pid 5100] mount("/dev/loop4", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5098] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5094] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5098] <... openat resumed>) = 3 [pid 5094] <... openat resumed>) = 4 [ 82.462441][ T5101] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 82.462465][ T5098] REISERFS (device loop2): Using tea hash to sort names [ 82.483257][ T5100] loop4: detected capacity change from 0 to 8192 [ 82.490183][ T5098] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 82.503452][ T5101] REISERFS (device loop5): found reiserfs format "3.5" with non-standard journal [ 82.512846][ T5101] REISERFS (device loop5): using ordered data mode [pid 5098] chdir("./file0" [pid 5094] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 5098] <... chdir resumed>) = 0 [pid 5104] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5098] ioctl(4, LOOP_CLR_FD [pid 5094] <... mmap resumed>) = 0x20000000 [pid 5098] <... ioctl resumed>) = 0 [pid 5094] ioctl(4, FS_IOC_GETVERSION [pid 5098] close(4 [pid 5094] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5098] <... close resumed>) = 0 [pid 5098] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5094] exit_group(0 [pid 5098] <... openat resumed>) = 4 [pid 5094] <... exit_group resumed>) = ? [pid 5098] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 5094] +++ exited with 0 +++ [pid 5098] <... mmap resumed>) = 0x20000000 [pid 5098] ioctl(4, FS_IOC_GETVERSION [pid 4995] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5094, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- [pid 5098] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [ 82.522410][ T5101] reiserfs: using flush barriers [ 82.533092][ T5101] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 82.533156][ T5100] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 82.557099][ T5101] REISERFS (device loop5): checking transaction log (loop5) [pid 4995] umount2("./7", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5098] exit_group(0 [pid 4995] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5098] <... exit_group resumed>) = ? [pid 4995] openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 4995] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5098] +++ exited with 0 +++ [pid 4995] getdents64(3, [pid 4997] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5098, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=11 /* 0.11 s */} --- [pid 4995] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 4997] umount2("./7", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4995] umount2("./7/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4997] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4997] openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4995] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4997] <... openat resumed>) = 3 [pid 4997] fstat(3, [pid 4995] lstat("./7/binderfs", [pid 4997] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4997] getdents64(3, [pid 4995] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5102] <... write resumed>) = 4194304 [pid 4997] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 4995] unlink("./7/binderfs" [pid 4997] umount2("./7/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4997] lstat("./7/binderfs", [pid 5102] munmap(0x7faaa11e5000, 4194304 [pid 4997] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5102] <... munmap resumed>) = 0 [pid 4997] unlink("./7/binderfs" [pid 4995] <... unlink resumed>) = 0 [pid 4997] <... unlink resumed>) = 0 [pid 4997] umount2("./7/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4995] umount2("./7/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5102] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5102] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5102] close(3) = 0 [pid 5102] mkdir("./file0", 0777) = 0 [ 82.623351][ T5102] loop1: detected capacity change from 0 to 8192 [ 82.634274][ T5101] REISERFS (device loop5): Using tea hash to sort names [ 82.649438][ T5101] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 5102] mount("/dev/loop1", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 4997] <... umount2 resumed>) = 0 [pid 5104] <... write resumed>) = 4194304 [pid 5101] <... mount resumed>) = 0 [pid 5104] munmap(0x7faaa11e5000, 4194304 [pid 5101] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 4997] umount2("./7/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5104] <... munmap resumed>) = 0 [pid 5101] <... openat resumed>) = 3 [ 82.670729][ T5100] REISERFS (device loop4): found reiserfs format "3.5" with non-standard journal [ 82.687070][ T5102] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 82.697628][ T5100] REISERFS (device loop4): using ordered data mode [ 82.707031][ T5100] reiserfs: using flush barriers [pid 5104] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5101] chdir("./file0" [pid 4997] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5101] <... chdir resumed>) = 0 [pid 4997] lstat("./7/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5104] <... openat resumed>) = 4 [pid 5101] ioctl(4, LOOP_CLR_FD [pid 4997] umount2("./7/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5101] <... ioctl resumed>) = 0 [pid 5104] ioctl(4, LOOP_SET_FD, 3 [pid 5101] close(4 [pid 4997] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4997] openat(AT_FDCWD, "./7/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5101] <... close resumed>) = 0 [pid 4997] <... openat resumed>) = 4 [pid 5101] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4997] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4997] getdents64(4, 0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4997] getdents64(4, 0x55555708f660 /* 0 entries */, 32768) = 0 [pid 5101] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 4997] close(4) = 0 [pid 5101] <... mmap resumed>) = 0x20000000 [pid 4997] rmdir("./7/file0") = 0 [pid 4997] getdents64(3, [pid 5101] ioctl(4, FS_IOC_GETVERSION [pid 4997] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 5101] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 4997] close(3) = 0 [pid 4997] rmdir("./7" [pid 5101] exit_group(0 [pid 4997] <... rmdir resumed>) = 0 [pid 5101] <... exit_group resumed>) = ? [pid 5101] +++ exited with 0 +++ [pid 4997] mkdir("./8", 0777 [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5101, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=12 /* 0.12 s */} --- [pid 5000] restart_syscall(<... resuming interrupted clone ...> [pid 4997] <... mkdir resumed>) = 0 [pid 5000] <... restart_syscall resumed>) = 0 [pid 5000] umount2("./7", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5000] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] getdents64(3, [pid 4997] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5000] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 5000] umount2("./7/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./7/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] unlink("./7/binderfs") = 0 [pid 5000] umount2("./7/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4997] <... openat resumed>) = 3 [pid 4997] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 4997] close(3) = 0 [pid 4997] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5104] <... ioctl resumed>) = 0 [pid 5104] close(3 [pid 4997] <... clone resumed>, child_tidptr=0x5555570865d0) = 5108 [pid 5104] <... close resumed>) = 0 [pid 5104] mkdir("./file0", 0777./strace-static-x86_64: Process 5108 attached [ 82.733224][ T5100] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 82.751527][ T5104] loop3: detected capacity change from 0 to 8192 [pid 5108] chdir("./8" [pid 5104] <... mkdir resumed>) = 0 [pid 5104] mount("/dev/loop3", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5108] <... chdir resumed>) = 0 [pid 5108] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5108] setpgid(0, 0) = 0 [pid 5108] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5108] write(3, "1000", 4) = 4 [pid 5108] close(3) = 0 [pid 5108] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5108] memfd_create("syzkaller", 0) = 3 [pid 5108] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7faaa11e5000 [ 82.815519][ T5104] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 4995] <... umount2 resumed>) = 0 [pid 4995] umount2("./7/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4995] lstat("./7/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4995] umount2("./7/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4995] openat(AT_FDCWD, "./7/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 4995] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4995] getdents64(4, [pid 5000] <... umount2 resumed>) = 0 [pid 4995] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [ 82.874845][ T5102] REISERFS (device loop1): found reiserfs format "3.5" with non-standard journal [ 82.887837][ T5102] REISERFS (device loop1): using ordered data mode [ 82.895501][ T5104] REISERFS (device loop3): found reiserfs format "3.5" with non-standard journal [ 82.904733][ T5104] REISERFS (device loop3): using ordered data mode [ 82.913080][ T5104] reiserfs: using flush barriers [ 82.920064][ T5102] reiserfs: using flush barriers [pid 5000] umount2("./7/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4995] getdents64(4, [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4995] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 5000] lstat("./7/file0", [pid 4995] close(4 [pid 5000] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4995] <... close resumed>) = 0 [ 82.920490][ T5104] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 82.935127][ T5100] REISERFS (device loop4): checking transaction log (loop4) [ 82.941604][ T5104] REISERFS (device loop3): checking transaction log (loop3) [ 82.959108][ T5104] REISERFS (device loop3): Using tea hash to sort names [pid 5000] umount2("./7/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4995] rmdir("./7/file0" [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./7/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4995] <... rmdir resumed>) = 0 [pid 5104] <... mount resumed>) = 0 [pid 5000] <... openat resumed>) = 4 [pid 4995] getdents64(3, [pid 5000] fstat(4, [pid 5108] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5104] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5000] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4995] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 4995] close(3 [pid 5104] <... openat resumed>) = 3 [pid 5000] getdents64(4, [pid 4995] <... close resumed>) = 0 [pid 5104] chdir("./file0" [pid 5000] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4995] rmdir("./7" [pid 5104] <... chdir resumed>) = 0 [pid 5000] getdents64(4, [pid 5104] ioctl(4, LOOP_CLR_FD [pid 5000] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4995] <... rmdir resumed>) = 0 [pid 5104] <... ioctl resumed>) = 0 [pid 5000] close(4) = 0 [pid 5104] close(4 [pid 5000] rmdir("./7/file0" [pid 4995] mkdir("./8", 0777 [pid 5104] <... close resumed>) = 0 [pid 5000] <... rmdir resumed>) = 0 [pid 5104] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4995] <... mkdir resumed>) = 0 [pid 5104] <... openat resumed>) = 4 [pid 5000] getdents64(3, 0x555557087620 /* 0 entries */, 32768) = 0 [pid 5104] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 5000] close(3 [pid 4995] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5000] <... close resumed>) = 0 [pid 5104] <... mmap resumed>) = 0x20000000 [pid 5000] rmdir("./7" [pid 4995] <... openat resumed>) = 3 [pid 5104] ioctl(4, FS_IOC_GETVERSION [pid 5000] <... rmdir resumed>) = 0 [pid 4995] ioctl(3, LOOP_CLR_FD [pid 5000] mkdir("./8", 0777 [pid 4995] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5104] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5000] <... mkdir resumed>) = 0 [pid 4995] close(3 [ 82.968263][ T5104] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 82.982095][ T5102] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 82.999966][ T5100] REISERFS (device loop4): Using tea hash to sort names [ 83.016460][ T5100] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [pid 5104] exit_group(0 [pid 5000] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4995] <... close resumed>) = 0 [pid 5104] <... exit_group resumed>) = ? [pid 5100] <... mount resumed>) = 0 [pid 5000] <... openat resumed>) = 3 [pid 4995] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5104] +++ exited with 0 +++ [pid 5100] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5000] ioctl(3, LOOP_CLR_FD [pid 5100] <... openat resumed>) = 3 [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5104, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=17 /* 0.17 s */} --- [pid 5000] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4998] restart_syscall(<... resuming interrupted clone ...> [pid 5100] chdir("./file0" [pid 5000] close(3 [pid 4998] <... restart_syscall resumed>) = 0 [pid 4995] <... clone resumed>, child_tidptr=0x5555570865d0) = 5110 [pid 4998] umount2("./8", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./8", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5100] <... chdir resumed>) = 0 [pid 5000] <... close resumed>) = 0 [pid 4998] fstat(3, [pid 5100] ioctl(4, LOOP_CLR_FD [pid 5000] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4998] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 ./strace-static-x86_64: Process 5111 attached ./strace-static-x86_64: Process 5110 attached [pid 5108] <... write resumed>) = 4194304 [pid 5100] <... ioctl resumed>) = 0 [pid 4998] getdents64(3, [pid 5111] chdir("./8" [pid 5110] chdir("./8" [pid 5108] munmap(0x7faaa11e5000, 4194304 [pid 5100] close(4 [pid 5000] <... clone resumed>, child_tidptr=0x5555570865d0) = 5111 [pid 4998] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 5111] <... chdir resumed>) = 0 [pid 5110] <... chdir resumed>) = 0 [pid 5108] <... munmap resumed>) = 0 [pid 5100] <... close resumed>) = 0 [pid 5111] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5110] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5108] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5100] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4998] umount2("./8/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5111] <... prctl resumed>) = 0 [pid 5110] <... prctl resumed>) = 0 [pid 5108] <... openat resumed>) = 4 [pid 5100] <... openat resumed>) = 4 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5111] setpgid(0, 0 [ 83.088381][ T5102] REISERFS (device loop1): checking transaction log (loop1) [pid 5110] setpgid(0, 0 [pid 5108] ioctl(4, LOOP_SET_FD, 3 [pid 5100] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 4998] lstat("./8/binderfs", [pid 5111] <... setpgid resumed>) = 0 [pid 5110] <... setpgid resumed>) = 0 [pid 5100] <... mmap resumed>) = 0x20000000 [pid 4998] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5111] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5110] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5100] ioctl(4, FS_IOC_GETVERSION [pid 4998] unlink("./8/binderfs" [pid 5111] <... openat resumed>) = 3 [pid 5110] <... openat resumed>) = 3 [pid 5100] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5111] write(3, "1000", 4 [pid 5110] write(3, "1000", 4 [pid 5100] exit_group(0 [pid 4998] <... unlink resumed>) = 0 [pid 5111] <... write resumed>) = 4 [pid 5110] <... write resumed>) = 4 [pid 5100] <... exit_group resumed>) = ? [pid 4998] umount2("./8/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5111] close(3 [pid 5110] close(3 [pid 5100] +++ exited with 0 +++ [pid 5111] <... close resumed>) = 0 [pid 5110] <... close resumed>) = 0 [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5100, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=13 /* 0.13 s */} --- [pid 5111] symlink("/dev/binderfs", "./binderfs" [pid 5110] symlink("/dev/binderfs", "./binderfs" [pid 4999] restart_syscall(<... resuming interrupted clone ...> [pid 5111] <... symlink resumed>) = 0 [pid 5110] <... symlink resumed>) = 0 [pid 5111] memfd_create("syzkaller", 0 [pid 5110] memfd_create("syzkaller", 0 [pid 5111] <... memfd_create resumed>) = 3 [pid 5110] <... memfd_create resumed>) = 3 [pid 5111] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5110] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5111] <... mmap resumed>) = 0x7faaa11e5000 [pid 5110] <... mmap resumed>) = 0x7faaa11e5000 [pid 4999] <... restart_syscall resumed>) = 0 [pid 5102] <... mount resumed>) = 0 [pid 5102] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5108] <... ioctl resumed>) = 0 [pid 5108] close(3) = 0 [pid 5108] mkdir("./file0", 0777) = 0 [pid 5108] mount("/dev/loop2", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5102] <... openat resumed>) = 3 [pid 5102] chdir("./file0" [pid 4999] umount2("./8", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5102] <... chdir resumed>) = 0 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./8", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5102] ioctl(4, LOOP_CLR_FD) = 0 [pid 4999] <... openat resumed>) = 3 [pid 5102] close(4 [ 83.132557][ T5102] REISERFS (device loop1): Using tea hash to sort names [ 83.133785][ T5108] loop2: detected capacity change from 0 to 8192 [ 83.166706][ T5102] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [pid 4999] fstat(3, [pid 5102] <... close resumed>) = 0 [pid 5102] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4999] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5102] <... openat resumed>) = 4 [pid 4999] getdents64(3, [pid 5102] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 4999] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 5102] <... mmap resumed>) = 0x20000000 [pid 4999] umount2("./8/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5102] ioctl(4, FS_IOC_GETVERSION [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5102] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 4999] lstat("./8/binderfs", [pid 5102] exit_group(0 [pid 4999] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5102] <... exit_group resumed>) = ? [pid 4999] unlink("./8/binderfs") = 0 [pid 5102] +++ exited with 0 +++ [pid 4999] umount2("./8/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4996] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5102, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=12 /* 0.12 s */} --- [pid 4996] umount2("./8", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4996] openat(AT_FDCWD, "./8", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 4996] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4996] getdents64(3, 0x555557087620 /* 4 entries */, 32768) = 112 [pid 4996] umount2("./8/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4996] lstat("./8/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4996] unlink("./8/binderfs") = 0 [pid 4996] umount2("./8/file0", MNT_DETACH|UMOUNT_NOFOLLOW [ 83.239425][ T5108] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5111] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5110] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 4998] <... umount2 resumed>) = 0 [pid 4998] umount2("./8/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./8/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [ 83.303821][ T5108] REISERFS (device loop2): found reiserfs format "3.5" with non-standard journal [pid 4998] umount2("./8/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./8/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 4998] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] getdents64(4, 0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4998] getdents64(4, 0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4998] close(4) = 0 [pid 4998] rmdir("./8/file0") = 0 [pid 4998] getdents64(3, 0x555557087620 /* 0 entries */, 32768) = 0 [pid 4998] close(3) = 0 [pid 4999] <... umount2 resumed>) = 0 [pid 4998] rmdir("./8" [pid 4999] umount2("./8/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] <... rmdir resumed>) = 0 [pid 4999] lstat("./8/file0", [pid 4998] mkdir("./9", 0777 [pid 4999] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] umount2("./8/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] <... mkdir resumed>) = 0 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4999] openat(AT_FDCWD, "./8/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4998] <... openat resumed>) = 3 [pid 4999] <... openat resumed>) = 4 [pid 4999] fstat(4, [ 83.404232][ T5108] REISERFS (device loop2): using ordered data mode [ 83.416150][ T5108] reiserfs: using flush barriers [ 83.426039][ T5108] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 4998] ioctl(3, LOOP_CLR_FD [pid 4999] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] getdents64(4, 0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4999] getdents64(4, 0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4999] close(4) = 0 [pid 4999] rmdir("./8/file0") = 0 [pid 4998] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4999] getdents64(3, [pid 4998] close(3 [pid 4999] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 4998] <... close resumed>) = 0 [pid 4999] close(3) = 0 [pid 4999] rmdir("./8") = 0 [pid 4999] mkdir("./9", 0777 [pid 4998] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4999] <... mkdir resumed>) = 0 [pid 4999] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4998] <... clone resumed>, child_tidptr=0x5555570865d0) = 5113 ./strace-static-x86_64: Process 5113 attached [pid 5111] <... write resumed>) = 4194304 [pid 4999] <... openat resumed>) = 3 [pid 5113] chdir("./9" [pid 5111] munmap(0x7faaa11e5000, 4194304 [pid 4999] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 4999] close(3 [pid 5113] <... chdir resumed>) = 0 [pid 5111] <... munmap resumed>) = 0 [pid 5108] <... mount resumed>) = 0 [pid 4999] <... close resumed>) = 0 [pid 5113] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5111] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5108] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 4999] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5113] <... prctl resumed>) = 0 [pid 5111] <... openat resumed>) = 4 [pid 5108] <... openat resumed>) = 3 [pid 5113] setpgid(0, 0 [pid 5111] ioctl(4, LOOP_SET_FD, 3 [pid 5108] chdir("./file0" [pid 4999] <... clone resumed>, child_tidptr=0x5555570865d0) = 5114 [ 83.469958][ T5108] REISERFS (device loop2): checking transaction log (loop2) [ 83.494366][ T5108] REISERFS (device loop2): Using tea hash to sort names [ 83.502664][ T5108] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 5113] <... setpgid resumed>) = 0 [pid 5113] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5108] <... chdir resumed>) = 0 [pid 4996] <... umount2 resumed>) = 0 ./strace-static-x86_64: Process 5114 attached [pid 5113] <... openat resumed>) = 3 [pid 5111] <... ioctl resumed>) = 0 [pid 5108] ioctl(4, LOOP_CLR_FD [pid 5114] chdir("./9" [pid 5113] write(3, "1000", 4 [pid 5111] close(3 [pid 5108] <... ioctl resumed>) = 0 [pid 5114] <... chdir resumed>) = 0 [pid 5113] <... write resumed>) = 4 [pid 5111] <... close resumed>) = 0 [pid 5108] close(4 [pid 5114] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5113] close(3 [pid 5111] mkdir("./file0", 0777 [pid 5108] <... close resumed>) = 0 [pid 5114] <... prctl resumed>) = 0 [pid 5113] <... close resumed>) = 0 [pid 5111] <... mkdir resumed>) = 0 [pid 5108] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5114] setpgid(0, 0 [pid 5113] symlink("/dev/binderfs", "./binderfs" [pid 5111] mount("/dev/loop5", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5108] <... openat resumed>) = 4 [pid 5114] <... setpgid resumed>) = 0 [pid 5113] <... symlink resumed>) = 0 [pid 5108] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 5114] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5108] <... mmap resumed>) = 0x20000000 [pid 5114] <... openat resumed>) = 3 [pid 5114] write(3, "1000", 4 [pid 5113] memfd_create("syzkaller", 0 [pid 5108] ioctl(4, FS_IOC_GETVERSION [pid 5114] <... write resumed>) = 4 [pid 5113] <... memfd_create resumed>) = 3 [pid 5108] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5114] close(3 [pid 5113] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5108] exit_group(0 [pid 4996] umount2("./8/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5114] <... close resumed>) = 0 [pid 5113] <... mmap resumed>) = 0x7faaa11e5000 [pid 5110] <... write resumed>) = 4194304 [pid 5108] <... exit_group resumed>) = ? [pid 5114] symlink("/dev/binderfs", "./binderfs" [pid 5108] +++ exited with 0 +++ [pid 5114] <... symlink resumed>) = 0 [pid 5110] munmap(0x7faaa11e5000, 4194304 [pid 4996] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5114] memfd_create("syzkaller", 0 [pid 5110] <... munmap resumed>) = 0 [pid 4997] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5108, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=16 /* 0.16 s */} --- [pid 4996] lstat("./8/file0", [pid 5114] <... memfd_create resumed>) = 3 [pid 4996] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5114] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7faaa11e5000 [pid 4996] umount2("./8/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5110] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4997] umount2("./8", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4996] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 83.520404][ T5111] loop5: detected capacity change from 0 to 8192 [ 83.553093][ T5111] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5110] ioctl(4, LOOP_SET_FD, 3 [pid 4997] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4996] openat(AT_FDCWD, "./8/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5110] <... ioctl resumed>) = 0 [pid 4996] <... openat resumed>) = 4 [pid 4997] openat(AT_FDCWD, "./8", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4996] fstat(4, [pid 4997] <... openat resumed>) = 3 [pid 4996] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5110] close(3) = 0 [pid 5110] mkdir("./file0", 0777 [pid 4997] fstat(3, [pid 4996] getdents64(4, [pid 4997] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4996] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4997] getdents64(3, [pid 4996] getdents64(4, [pid 4997] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 4996] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4997] umount2("./8/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4996] close(4 [pid 5110] <... mkdir resumed>) = 0 [ 83.588024][ T5110] loop0: detected capacity change from 0 to 8192 [ 83.588948][ T5111] REISERFS (device loop5): found reiserfs format "3.5" with non-standard journal [ 83.616036][ T5111] REISERFS (device loop5): using ordered data mode [ 83.622680][ T5111] reiserfs: using flush barriers [pid 5110] mount("/dev/loop0", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 4997] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4997] lstat("./8/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4997] unlink("./8/binderfs") = 0 [pid 4996] <... close resumed>) = 0 [pid 5114] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5113] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 4997] umount2("./8/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4996] rmdir("./8/file0") = 0 [pid 4996] getdents64(3, 0x555557087620 /* 0 entries */, 32768) = 0 [pid 4996] close(3) = 0 [pid 4996] rmdir("./8") = 0 [pid 4996] mkdir("./9", 0777) = 0 [pid 4996] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 4996] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 4996] close(3) = 0 [ 83.631359][ T5111] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 83.649855][ T5110] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 83.649876][ T5111] REISERFS (device loop5): checking transaction log (loop5) [ 83.670882][ T5110] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 83.680456][ T5110] REISERFS (device loop0): using ordered data mode [pid 4996] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570865d0) = 5117 [pid 5111] <... mount resumed>) = 0 [pid 5111] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY./strace-static-x86_64: Process 5117 attached ) = 3 [pid 5117] chdir("./9" [pid 5111] chdir("./file0" [pid 5117] <... chdir resumed>) = 0 [pid 5111] <... chdir resumed>) = 0 [ 83.688071][ T5111] REISERFS (device loop5): Using tea hash to sort names [ 83.695421][ T5111] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 83.705331][ T5110] reiserfs: using flush barriers [pid 5117] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5111] ioctl(4, LOOP_CLR_FD [pid 5117] <... prctl resumed>) = 0 [pid 5113] <... write resumed>) = 4194304 [pid 5117] setpgid(0, 0) = 0 [pid 5117] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5117] write(3, "1000", 4 [pid 5111] <... ioctl resumed>) = 0 [pid 5117] <... write resumed>) = 4 [pid 5113] munmap(0x7faaa11e5000, 4194304 [pid 5117] close(3) = 0 [pid 5117] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5117] memfd_create("syzkaller", 0) = 3 [pid 5117] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7faaa11e5000 [pid 5113] <... munmap resumed>) = 0 [ 83.731649][ T5110] 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 [ 83.748995][ T5110] REISERFS (device loop0): checking transaction log (loop0) [pid 5111] close(4 [pid 5113] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5111] <... close resumed>) = 0 [pid 4997] <... umount2 resumed>) = 0 [pid 5113] <... openat resumed>) = 4 [pid 5111] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4997] umount2("./8/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5113] ioctl(4, LOOP_SET_FD, 3 [pid 5111] <... openat resumed>) = 4 [pid 4997] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5113] <... ioctl resumed>) = 0 [pid 4997] lstat("./8/file0", [pid 5113] close(3 [pid 5111] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 4997] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5114] <... write resumed>) = 4194304 [pid 5113] <... close resumed>) = 0 [pid 5111] <... mmap resumed>) = 0x20000000 [pid 5110] <... mount resumed>) = 0 [pid 4997] umount2("./8/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5114] munmap(0x7faaa11e5000, 4194304 [pid 5113] mkdir("./file0", 0777 [pid 5111] ioctl(4, FS_IOC_GETVERSION [pid 5110] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 4997] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5114] <... munmap resumed>) = 0 [pid 5113] <... mkdir resumed>) = 0 [pid 5111] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5110] <... openat resumed>) = 3 [pid 4997] openat(AT_FDCWD, "./8/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5114] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5113] mount("/dev/loop3", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5111] exit_group(0 [pid 5110] chdir("./file0" [pid 4997] <... openat resumed>) = 4 [pid 5114] <... openat resumed>) = 4 [pid 5111] <... exit_group resumed>) = ? [pid 5110] <... chdir resumed>) = 0 [pid 4997] fstat(4, [ 83.785258][ T5110] REISERFS (device loop0): Using tea hash to sort names [ 83.792567][ T5110] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 83.807747][ T5113] loop3: detected capacity change from 0 to 8192 [pid 5114] ioctl(4, LOOP_SET_FD, 3 [pid 5111] +++ exited with 0 +++ [pid 5110] ioctl(4, LOOP_CLR_FD [pid 4997] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5110] <... ioctl resumed>) = 0 [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5111, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=14 /* 0.14 s */} --- [pid 4997] getdents64(4, [pid 5114] <... ioctl resumed>) = 0 [pid 5110] close(4 [pid 5000] restart_syscall(<... resuming interrupted clone ...> [pid 4997] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 5117] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5114] close(3 [pid 5110] <... close resumed>) = 0 [pid 4997] getdents64(4, [pid 5114] <... close resumed>) = 0 [pid 5110] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4997] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 5114] mkdir("./file0", 0777 [pid 5110] <... openat resumed>) = 4 [pid 4997] close(4 [pid 5114] <... mkdir resumed>) = 0 [pid 5110] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 4997] <... close resumed>) = 0 [pid 5114] mount("/dev/loop4", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5110] <... mmap resumed>) = 0x20000000 [pid 4997] rmdir("./8/file0" [pid 5110] ioctl(4, FS_IOC_GETVERSION [pid 4997] <... rmdir resumed>) = 0 [pid 5110] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 4997] getdents64(3, [pid 5110] exit_group(0 [pid 4997] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 5110] <... exit_group resumed>) = ? [pid 4997] close(3 [pid 5110] +++ exited with 0 +++ [pid 4997] <... close resumed>) = 0 [pid 4997] rmdir("./8") = 0 [pid 4997] mkdir("./9", 0777) = 0 [pid 4997] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 4997] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 4997] close(3) = 0 [pid 4997] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5000] <... restart_syscall resumed>) = 0 [pid 4995] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5110, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=13 /* 0.13 s */} --- [pid 4997] <... clone resumed>, child_tidptr=0x5555570865d0) = 5119 [pid 5000] umount2("./8", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./8", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [ 83.843272][ T5114] loop4: detected capacity change from 0 to 8192 [ 83.865701][ T5113] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5000] fstat(3, ./strace-static-x86_64: Process 5119 attached {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4995] umount2("./8", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] getdents64(3, [pid 4995] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5119] chdir("./9" [pid 5000] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 4995] openat(AT_FDCWD, "./8", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5119] <... chdir resumed>) = 0 [pid 5119] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5000] umount2("./8/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4995] <... openat resumed>) = 3 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4995] fstat(3, [pid 5119] <... prctl resumed>) = 0 [pid 5000] lstat("./8/binderfs", [pid 4995] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] unlink("./8/binderfs" [pid 4995] getdents64(3, [pid 5119] setpgid(0, 0) = 0 [pid 5119] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5000] <... unlink resumed>) = 0 [pid 4995] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 5119] <... openat resumed>) = 3 [pid 5000] umount2("./8/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4995] umount2("./8/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5119] write(3, "1000", 4) = 4 [pid 5119] close(3) = 0 [pid 4995] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5119] symlink("/dev/binderfs", "./binderfs" [pid 4995] lstat("./8/binderfs", [pid 5119] <... symlink resumed>) = 0 [pid 4995] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5117] <... write resumed>) = 4194304 [pid 4995] unlink("./8/binderfs") = 0 [ 83.895951][ T5114] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 83.934865][ T5113] REISERFS (device loop3): found reiserfs format "3.5" with non-standard journal [pid 4995] umount2("./8/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5117] munmap(0x7faaa11e5000, 4194304 [pid 5119] memfd_create("syzkaller", 0) = 3 [pid 5117] <... munmap resumed>) = 0 [pid 5117] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [ 83.945084][ T5113] REISERFS (device loop3): using ordered data mode [ 83.958361][ T5113] reiserfs: using flush barriers [ 83.965331][ T5114] REISERFS (device loop4): found reiserfs format "3.5" with non-standard journal [ 83.973963][ T5117] loop1: detected capacity change from 0 to 8192 [pid 5117] ioctl(4, LOOP_SET_FD, 3 [pid 5119] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5117] <... ioctl resumed>) = 0 [pid 5117] close(3) = 0 [pid 5117] mkdir("./file0", 0777 [pid 5119] <... mmap resumed>) = 0x7faaa11e5000 [pid 5117] <... mkdir resumed>) = 0 [ 83.975744][ T5113] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 83.997337][ T5114] REISERFS (device loop4): using ordered data mode [ 84.004710][ T5114] reiserfs: using flush barriers [ 84.027125][ T5117] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5117] mount("/dev/loop1", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [ 84.041281][ T5114] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 84.048377][ T5113] REISERFS (device loop3): checking transaction log (loop3) [ 84.085690][ T5114] REISERFS (device loop4): checking transaction log (loop4) [pid 5119] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 4995] <... umount2 resumed>) = 0 [pid 5114] <... mount resumed>) = 0 [pid 5114] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5114] chdir("./file0") = 0 [pid 5114] ioctl(4, LOOP_CLR_FD) = 0 [pid 5114] close(4) = 0 [pid 5114] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5114] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0) = 0x20000000 [pid 5114] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5114] exit_group(0) = ? [pid 5114] +++ exited with 0 +++ [pid 4995] umount2("./8/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5114, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=11 /* 0.11 s */} --- [pid 4995] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] restart_syscall(<... resuming interrupted clone ...> [pid 4995] lstat("./8/file0", [pid 4999] <... restart_syscall resumed>) = 0 [pid 4995] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4995] umount2("./8/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] umount2("./9", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4995] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./9", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4995] openat(AT_FDCWD, "./8/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4999] <... openat resumed>) = 3 [pid 4999] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] getdents64(3, 0x555557087620 /* 4 entries */, 32768) = 112 [pid 4999] umount2("./9/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] lstat("./9/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4999] unlink("./9/binderfs") = 0 [pid 4999] umount2("./9/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4995] <... openat resumed>) = 4 [ 84.097334][ T5114] REISERFS (device loop4): Using tea hash to sort names [ 84.106160][ T5114] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 84.115461][ T5117] REISERFS (device loop1): found reiserfs format "3.5" with non-standard journal [pid 4995] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4995] getdents64(4, 0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4995] getdents64(4, 0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4995] close(4) = 0 [pid 4995] rmdir("./8/file0") = 0 [pid 4995] getdents64(3, 0x555557087620 /* 0 entries */, 32768) = 0 [pid 4995] close(3) = 0 [pid 5000] <... umount2 resumed>) = 0 [pid 4995] rmdir("./8") = 0 [pid 4995] mkdir("./9", 0777 [pid 5000] umount2("./8/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4995] <... mkdir resumed>) = 0 [pid 4995] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 4995] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [ 84.151237][ T5113] REISERFS (device loop3): Using tea hash to sort names [ 84.181337][ T5117] REISERFS (device loop1): using ordered data mode [ 84.188937][ T5117] reiserfs: using flush barriers [pid 4995] close(3 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4995] <... close resumed>) = 0 [pid 4995] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570865d0) = 5122 [pid 5000] lstat("./8/file0", [pid 4999] <... umount2 resumed>) = 0 ./strace-static-x86_64: Process 5122 attached [pid 5122] chdir("./9") = 0 [pid 5122] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5122] setpgid(0, 0 [pid 5113] <... mount resumed>) = 0 [pid 5000] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] umount2("./9/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5122] <... setpgid resumed>) = 0 [pid 5122] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5122] write(3, "1000", 4) = 4 [pid 5113] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5000] umount2("./8/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5122] close(3) = 0 [pid 5122] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5122] memfd_create("syzkaller", 0 [pid 5000] openat(AT_FDCWD, "./8/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5122] <... memfd_create resumed>) = 3 [pid 5000] <... openat resumed>) = 4 [pid 5122] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5113] <... openat resumed>) = 3 [pid 5000] fstat(4, [pid 4999] lstat("./9/file0", [pid 5122] <... mmap resumed>) = 0x7faaa11e5000 [pid 5113] chdir("./file0" [pid 5000] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [ 84.195476][ T5117] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 84.212712][ T5113] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 84.222850][ T5117] REISERFS (device loop1): checking transaction log (loop1) [ 84.231739][ T5117] REISERFS (device loop1): Using tea hash to sort names [pid 5117] <... mount resumed>) = 0 [pid 5113] <... chdir resumed>) = 0 [pid 5000] getdents64(4, [pid 4999] umount2("./9/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5117] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5113] ioctl(4, LOOP_CLR_FD [pid 5000] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5119] <... write resumed>) = 4194304 [pid 5117] <... openat resumed>) = 3 [pid 5113] <... ioctl resumed>) = 0 [pid 5000] getdents64(4, [pid 4999] openat(AT_FDCWD, "./9/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5119] munmap(0x7faaa11e5000, 4194304 [pid 5117] chdir("./file0" [pid 5113] close(4 [pid 5000] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4999] <... openat resumed>) = 4 [pid 5000] close(4) = 0 [pid 5122] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5119] <... munmap resumed>) = 0 [pid 5117] <... chdir resumed>) = 0 [pid 5113] <... close resumed>) = 0 [pid 5000] rmdir("./8/file0" [pid 4999] fstat(4, [pid 5119] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5117] ioctl(4, LOOP_CLR_FD [pid 5113] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5000] <... rmdir resumed>) = 0 [pid 4999] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5119] <... openat resumed>) = 4 [pid 5117] <... ioctl resumed>) = 0 [pid 5000] getdents64(3, [pid 5113] <... openat resumed>) = 4 [pid 5000] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 4999] getdents64(4, [pid 5119] ioctl(4, LOOP_SET_FD, 3 [ 84.255160][ T5117] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [pid 5117] close(4 [pid 5113] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 5000] close(3 [pid 4999] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 5000] <... close resumed>) = 0 [pid 5117] <... close resumed>) = 0 [pid 5117] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5113] <... mmap resumed>) = 0x20000000 [pid 5000] rmdir("./8" [pid 4999] getdents64(4, [pid 5117] <... openat resumed>) = 4 [pid 5113] ioctl(4, FS_IOC_GETVERSION [pid 5000] <... rmdir resumed>) = 0 [pid 4999] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 5117] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 5113] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5000] mkdir("./9", 0777 [pid 4999] close(4 [pid 5119] <... ioctl resumed>) = 0 [pid 5117] <... mmap resumed>) = 0x20000000 [pid 5113] exit_group(0 [pid 5000] <... mkdir resumed>) = 0 [pid 4999] <... close resumed>) = 0 [pid 5119] close(3 [pid 5117] ioctl(4, FS_IOC_GETVERSION [pid 5113] <... exit_group resumed>) = ? [pid 5000] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4999] rmdir("./9/file0" [pid 5117] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5113] +++ exited with 0 +++ [pid 5000] <... openat resumed>) = 3 [pid 5119] <... close resumed>) = 0 [pid 5117] exit_group(0 [pid 5000] ioctl(3, LOOP_CLR_FD [pid 4999] <... rmdir resumed>) = 0 [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5113, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=14 /* 0.14 s */} --- [pid 5119] mkdir("./file0", 0777 [pid 5117] <... exit_group resumed>) = ? [pid 5000] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4999] getdents64(3, [pid 5119] <... mkdir resumed>) = 0 [pid 5000] close(3) = 0 [pid 5117] +++ exited with 0 +++ [pid 5000] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5119] mount("/dev/loop2", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 4999] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 5123 attached [pid 5000] <... clone resumed>, child_tidptr=0x5555570865d0) = 5123 [pid 4999] close(3 [pid 4998] umount2("./9", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4996] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5117, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=13 /* 0.13 s */} --- [pid 5123] chdir("./9" [pid 4999] <... close resumed>) = 0 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5123] <... chdir resumed>) = 0 [pid 4999] rmdir("./9" [pid 4998] openat(AT_FDCWD, "./9", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5123] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4999] <... rmdir resumed>) = 0 [pid 4998] <... openat resumed>) = 3 [pid 5123] <... prctl resumed>) = 0 [pid 4999] mkdir("./10", 0777 [pid 4998] fstat(3, [pid 4996] umount2("./9", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5123] setpgid(0, 0) = 0 [pid 4999] <... mkdir resumed>) = 0 [pid 4998] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4996] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 84.299037][ T5119] loop2: detected capacity change from 0 to 8192 [pid 5123] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4999] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4998] getdents64(3, [pid 4996] openat(AT_FDCWD, "./9", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5123] <... openat resumed>) = 3 [pid 4999] <... openat resumed>) = 3 [pid 4998] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 5123] write(3, "1000", 4 [pid 4999] ioctl(3, LOOP_CLR_FD [pid 4998] umount2("./9/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4996] <... openat resumed>) = 3 [pid 5123] <... write resumed>) = 4 [pid 4999] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4996] fstat(3, [pid 5123] close(3 [pid 4999] close(3 [pid 4998] lstat("./9/binderfs", [pid 4996] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5123] <... close resumed>) = 0 [pid 4999] <... close resumed>) = 0 [pid 4998] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4996] getdents64(3, [pid 5123] symlink("/dev/binderfs", "./binderfs" [pid 4999] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4998] unlink("./9/binderfs" [pid 4996] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 5123] <... symlink resumed>) = 0 [pid 5123] memfd_create("syzkaller", 0 [pid 4998] <... unlink resumed>) = 0 [pid 4996] umount2("./9/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5123] <... memfd_create resumed>) = 3 [pid 4999] <... clone resumed>, child_tidptr=0x5555570865d0) = 5125 [pid 4998] umount2("./9/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4996] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5123] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 4996] lstat("./9/binderfs", [pid 5123] <... mmap resumed>) = 0x7faaa11e5000 [pid 4996] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 ./strace-static-x86_64: Process 5125 attached [pid 5125] chdir("./10") = 0 [pid 5125] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5125] setpgid(0, 0) = 0 [pid 5125] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5125] write(3, "1000", 4) = 4 [pid 5125] close(3) = 0 [pid 5125] symlink("/dev/binderfs", "./binderfs" [pid 4996] unlink("./9/binderfs") = 0 [pid 4996] umount2("./9/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5125] <... symlink resumed>) = 0 [pid 5125] memfd_create("syzkaller", 0) = 3 [pid 5125] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7faaa11e5000 [pid 5123] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5122] <... write resumed>) = 4194304 [ 84.344994][ T5119] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 84.366477][ T5119] REISERFS (device loop2): found reiserfs format "3.5" with non-standard journal [pid 5122] munmap(0x7faaa11e5000, 4194304) = 0 [pid 5122] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5122] ioctl(4, LOOP_SET_FD, 3 [pid 5125] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5122] <... ioctl resumed>) = 0 [pid 5122] close(3) = 0 [pid 5122] mkdir("./file0", 0777) = 0 [ 84.448451][ T5119] REISERFS (device loop2): using ordered data mode [ 84.455328][ T5119] reiserfs: using flush barriers [ 84.457345][ T5122] loop0: detected capacity change from 0 to 8192 [ 84.467042][ T5119] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5122] mount("/dev/loop0", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5125] <... write resumed>) = 4194304 [pid 5123] <... write resumed>) = 4194304 [pid 5125] munmap(0x7faaa11e5000, 4194304 [ 84.505920][ T5122] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 84.540663][ T5119] REISERFS (device loop2): checking transaction log (loop2) [pid 5123] munmap(0x7faaa11e5000, 4194304 [pid 5125] <... munmap resumed>) = 0 [pid 5123] <... munmap resumed>) = 0 [pid 5125] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5123] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5125] <... openat resumed>) = 4 [pid 5123] <... openat resumed>) = 4 [pid 5125] ioctl(4, LOOP_SET_FD, 3 [pid 5123] ioctl(4, LOOP_SET_FD, 3 [pid 5125] <... ioctl resumed>) = 0 [pid 5123] <... ioctl resumed>) = 0 [ 84.549016][ T5122] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 84.562744][ T5122] REISERFS (device loop0): using ordered data mode [ 84.566674][ T5119] REISERFS (device loop2): Using tea hash to sort names [ 84.570139][ T5122] reiserfs: using flush barriers [ 84.584362][ T5125] loop4: detected capacity change from 0 to 8192 [ 84.591256][ T5123] loop5: detected capacity change from 0 to 8192 [pid 5123] close(3) = 0 [pid 5125] close(3 [pid 5123] mkdir("./file0", 0777 [pid 5125] <... close resumed>) = 0 [pid 5125] mkdir("./file0", 0777 [pid 5123] <... mkdir resumed>) = 0 [pid 5125] <... mkdir resumed>) = 0 [pid 5123] mount("/dev/loop5", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [ 84.598355][ T5122] 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 [ 84.615689][ T5122] REISERFS (device loop0): checking transaction log (loop0) [ 84.624097][ T5119] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 84.633277][ T5122] REISERFS (device loop0): Using tea hash to sort names [ 84.641070][ T5122] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5125] mount("/dev/loop4", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5122] <... mount resumed>) = 0 [pid 5119] <... mount resumed>) = 0 [pid 4998] <... umount2 resumed>) = 0 [pid 4996] <... umount2 resumed>) = 0 [pid 5122] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5119] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 4998] umount2("./9/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4996] umount2("./9/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5122] <... openat resumed>) = 3 [pid 5119] <... openat resumed>) = 3 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4996] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5122] chdir("./file0" [pid 5119] chdir("./file0" [pid 4998] lstat("./9/file0", [pid 4996] lstat("./9/file0", [pid 5122] <... chdir resumed>) = 0 [pid 5119] <... chdir resumed>) = 0 [pid 4998] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4996] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5122] ioctl(4, LOOP_CLR_FD [pid 5119] ioctl(4, LOOP_CLR_FD [pid 4998] umount2("./9/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4996] umount2("./9/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5122] <... ioctl resumed>) = 0 [pid 5119] <... ioctl resumed>) = 0 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4996] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5122] close(4 [pid 5119] close(4 [pid 4998] openat(AT_FDCWD, "./9/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4996] openat(AT_FDCWD, "./9/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5122] <... close resumed>) = 0 [pid 5119] <... close resumed>) = 0 [pid 4998] <... openat resumed>) = 4 [pid 4996] <... openat resumed>) = 4 [pid 5122] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5119] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4998] fstat(4, [pid 4996] fstat(4, [pid 5122] <... openat resumed>) = 4 [pid 5119] <... openat resumed>) = 4 [pid 4998] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4996] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5122] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 5119] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 4998] getdents64(4, [pid 4996] getdents64(4, [pid 5122] <... mmap resumed>) = 0x20000000 [pid 5119] <... mmap resumed>) = 0x20000000 [pid 4998] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4996] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 5122] ioctl(4, FS_IOC_GETVERSION [pid 5119] ioctl(4, FS_IOC_GETVERSION [pid 4998] getdents64(4, [pid 4996] getdents64(4, [pid 5122] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5119] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 4998] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4996] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 5122] exit_group(0 [pid 5119] exit_group(0 [pid 4998] close(4 [pid 4996] close(4 [pid 5122] <... exit_group resumed>) = ? [pid 5119] <... exit_group resumed>) = ? [pid 4998] <... close resumed>) = 0 [pid 4996] <... close resumed>) = 0 [ 84.656091][ T5123] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 84.672428][ T5125] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 84.686064][ T5125] REISERFS (device loop4): found reiserfs format "3.5" with non-standard journal [ 84.690662][ T5123] REISERFS (device loop5): found reiserfs format "3.5" with non-standard journal [pid 5122] +++ exited with 0 +++ [pid 5119] +++ exited with 0 +++ [pid 4998] rmdir("./9/file0" [pid 4996] rmdir("./9/file0" [pid 4998] <... rmdir resumed>) = 0 [pid 4997] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5119, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- [pid 4996] <... rmdir resumed>) = 0 [pid 4995] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5122, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=13 /* 0.13 s */} --- [pid 4998] getdents64(3, [pid 4996] getdents64(3, [pid 4998] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 4996] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 4998] close(3 [pid 4997] umount2("./9", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4996] close(3 [pid 4995] umount2("./9", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] <... close resumed>) = 0 [pid 4997] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4996] <... close resumed>) = 0 [pid 4995] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] rmdir("./9" [pid 4997] openat(AT_FDCWD, "./9", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4996] rmdir("./9" [pid 4995] openat(AT_FDCWD, "./9", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4998] <... rmdir resumed>) = 0 [pid 4997] <... openat resumed>) = 3 [pid 4996] <... rmdir resumed>) = 0 [pid 4995] <... openat resumed>) = 3 [pid 4998] mkdir("./10", 0777 [pid 4997] fstat(3, [pid 4996] mkdir("./10", 0777 [pid 4995] fstat(3, [pid 4998] <... mkdir resumed>) = 0 [pid 4997] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4996] <... mkdir resumed>) = 0 [pid 4995] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4997] getdents64(3, [pid 4996] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4995] getdents64(3, [pid 4998] <... openat resumed>) = 3 [pid 4997] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 4996] <... openat resumed>) = 3 [pid 4995] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 4998] ioctl(3, LOOP_CLR_FD [pid 4997] umount2("./9/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4996] ioctl(3, LOOP_CLR_FD [pid 4995] umount2("./9/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4997] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4996] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4995] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 84.696388][ T5125] REISERFS (device loop4): using ordered data mode [ 84.711831][ T5125] reiserfs: using flush barriers [ 84.729101][ T5123] REISERFS (device loop5): using ordered data mode [ 84.731081][ T5125] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 84.736406][ T5123] reiserfs: using flush barriers [pid 4998] close(3 [pid 4997] lstat("./9/binderfs", [pid 4996] close(3 [pid 4995] lstat("./9/binderfs", [pid 4998] <... close resumed>) = 0 [pid 4997] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4996] <... close resumed>) = 0 [pid 4995] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4998] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4997] unlink("./9/binderfs" [pid 4996] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4995] unlink("./9/binderfs" [pid 4997] <... unlink resumed>) = 0 [pid 4995] <... unlink resumed>) = 0 [pid 4998] <... clone resumed>, child_tidptr=0x5555570865d0) = 5129 [pid 4997] umount2("./9/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4996] <... clone resumed>, child_tidptr=0x5555570865d0) = 5130 [pid 4995] umount2("./9/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5129 attached ./strace-static-x86_64: Process 5130 attached [pid 5130] chdir("./10" [pid 5129] chdir("./10" [pid 5130] <... chdir resumed>) = 0 [pid 5129] <... chdir resumed>) = 0 [pid 5130] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5129] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5130] <... prctl resumed>) = 0 [pid 5129] <... prctl resumed>) = 0 [pid 5130] setpgid(0, 0 [pid 5129] setpgid(0, 0 [pid 5130] <... setpgid resumed>) = 0 [pid 5129] <... setpgid resumed>) = 0 [pid 5130] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5129] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5130] <... openat resumed>) = 3 [pid 5129] <... openat resumed>) = 3 [pid 5130] write(3, "1000", 4 [pid 5129] write(3, "1000", 4 [pid 5130] <... write resumed>) = 4 [pid 5129] <... write resumed>) = 4 [pid 5130] close(3 [pid 5129] close(3 [pid 5130] <... close resumed>) = 0 [pid 5129] <... close resumed>) = 0 [pid 5130] symlink("/dev/binderfs", "./binderfs" [pid 5129] symlink("/dev/binderfs", "./binderfs" [pid 5130] <... symlink resumed>) = 0 [pid 5129] <... symlink resumed>) = 0 [pid 5130] memfd_create("syzkaller", 0 [pid 5129] memfd_create("syzkaller", 0 [pid 5130] <... memfd_create resumed>) = 3 [pid 5129] <... memfd_create resumed>) = 3 [pid 5130] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [ 84.763866][ T5123] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5129] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5130] <... mmap resumed>) = 0x7faaa11e5000 [pid 5129] <... mmap resumed>) = 0x7faaa11e5000 [pid 4995] <... umount2 resumed>) = 0 [pid 4995] umount2("./9/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4995] lstat("./9/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4995] umount2("./9/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5125] <... mount resumed>) = 0 [pid 4995] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5125] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 4995] openat(AT_FDCWD, "./9/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5130] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5125] <... openat resumed>) = 3 [pid 5125] chdir("./file0" [pid 4995] <... openat resumed>) = 4 [pid 5125] <... chdir resumed>) = 0 [pid 4995] fstat(4, [pid 5125] ioctl(4, LOOP_CLR_FD) = 0 [pid 4995] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5125] close(4 [pid 4995] getdents64(4, [pid 5125] <... close resumed>) = 0 [pid 5125] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4995] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 5125] <... openat resumed>) = 4 [pid 4995] getdents64(4, [pid 5125] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 4995] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 5125] <... mmap resumed>) = 0x20000000 [pid 5125] ioctl(4, FS_IOC_GETVERSION [pid 4995] close(4 [pid 5125] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5125] exit_group(0 [pid 4995] <... close resumed>) = 0 [pid 5125] <... exit_group resumed>) = ? [pid 4995] rmdir("./9/file0") = 0 [pid 5125] +++ exited with 0 +++ [ 84.864649][ T5125] REISERFS (device loop4): checking transaction log (loop4) [ 84.874146][ T5125] REISERFS (device loop4): Using tea hash to sort names [ 84.883554][ T5125] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 84.893510][ T5123] REISERFS (device loop5): checking transaction log (loop5) [pid 4995] getdents64(3, [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5125, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=16 /* 0.16 s */} --- [pid 4999] restart_syscall(<... resuming interrupted clone ...> [pid 4995] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 4999] <... restart_syscall resumed>) = 0 [pid 4995] close(3) = 0 [pid 4999] umount2("./10", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4995] rmdir("./9" [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./10", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4995] <... rmdir resumed>) = 0 [pid 4999] <... openat resumed>) = 3 [pid 4995] mkdir("./10", 0777 [pid 4999] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4995] <... mkdir resumed>) = 0 [pid 4999] getdents64(3, 0x555557087620 /* 4 entries */, 32768) = 112 [pid 4999] umount2("./10/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4995] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4999] lstat("./10/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4999] unlink("./10/binderfs" [pid 4995] <... openat resumed>) = 3 [pid 4999] <... unlink resumed>) = 0 [pid 4999] umount2("./10/file0", MNT_DETACH|UMOUNT_NOFOLLOW [ 84.939132][ T5123] REISERFS (device loop5): Using tea hash to sort names [pid 4995] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5130] <... write resumed>) = 4194304 [pid 5129] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5130] munmap(0x7faaa11e5000, 4194304 [pid 5123] <... mount resumed>) = 0 [pid 4997] <... umount2 resumed>) = 0 [pid 4995] close(3 [pid 5130] <... munmap resumed>) = 0 [pid 4995] <... close resumed>) = 0 [pid 4999] <... umount2 resumed>) = 0 [pid 4999] umount2("./10/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] lstat("./10/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] umount2("./10/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./10/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5130] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5123] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 4999] fstat(4, [pid 4997] umount2("./9/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4995] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5130] <... openat resumed>) = 4 [pid 5123] <... openat resumed>) = 3 [pid 4999] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4997] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5130] ioctl(4, LOOP_SET_FD, 3 [pid 5123] chdir("./file0" [pid 4999] getdents64(4, [pid 4997] lstat("./9/file0", [pid 4995] <... clone resumed>, child_tidptr=0x5555570865d0) = 5131 [pid 4999] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4999] getdents64(4, 0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4999] close(4) = 0 [pid 4999] rmdir("./10/file0") = 0 [pid 4999] getdents64(3, 0x555557087620 /* 0 entries */, 32768) = 0 [pid 5130] <... ioctl resumed>) = 0 [pid 5123] <... chdir resumed>) = 0 [pid 4999] close(3 [pid 4997] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 ./strace-static-x86_64: Process 5131 attached [pid 5130] close(3 [pid 5123] ioctl(4, LOOP_CLR_FD [pid 4999] <... close resumed>) = 0 [pid 4997] umount2("./9/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5131] chdir("./10" [pid 5130] <... close resumed>) = 0 [pid 5123] <... ioctl resumed>) = 0 [pid 4999] rmdir("./10" [pid 4997] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5131] <... chdir resumed>) = 0 [pid 5130] mkdir("./file0", 0777 [pid 5123] close(4 [pid 4999] <... rmdir resumed>) = 0 [pid 4997] openat(AT_FDCWD, "./9/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5131] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5130] <... mkdir resumed>) = 0 [pid 5123] <... close resumed>) = 0 [pid 4999] mkdir("./11", 0777 [pid 4997] <... openat resumed>) = 4 [pid 4999] <... mkdir resumed>) = 0 [pid 4999] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 4999] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 4999] close(3) = 0 [pid 4999] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5131] <... prctl resumed>) = 0 [pid 5130] mount("/dev/loop1", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5123] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4997] fstat(4, [pid 5131] setpgid(0, 0 [pid 4999] <... clone resumed>, child_tidptr=0x5555570865d0) = 5132 [pid 5131] <... setpgid resumed>) = 0 [pid 5123] <... openat resumed>) = 4 [pid 4997] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5131] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5123] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 4997] getdents64(4, ./strace-static-x86_64: Process 5132 attached [pid 5131] <... openat resumed>) = 3 [pid 5132] chdir("./11" [pid 5131] write(3, "1000", 4 [pid 5123] <... mmap resumed>) = 0x20000000 [pid 4997] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 5132] <... chdir resumed>) = 0 [pid 5131] <... write resumed>) = 4 [pid 5123] ioctl(4, FS_IOC_GETVERSION [pid 4997] getdents64(4, [ 84.998368][ T5123] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 85.036425][ T5130] loop1: detected capacity change from 0 to 8192 [pid 5132] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5132] setpgid(0, 0) = 0 [pid 5132] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5131] close(3 [pid 5123] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 4997] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 5132] write(3, "1000", 4 [pid 5131] <... close resumed>) = 0 [pid 5123] exit_group(0 [pid 4997] close(4 [pid 5132] <... write resumed>) = 4 [pid 5131] symlink("/dev/binderfs", "./binderfs" [pid 5123] <... exit_group resumed>) = ? [pid 4997] <... close resumed>) = 0 [pid 5132] close(3 [pid 5131] <... symlink resumed>) = 0 [pid 4997] rmdir("./9/file0" [pid 5132] <... close resumed>) = 0 [pid 5132] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5123] +++ exited with 0 +++ [pid 5132] memfd_create("syzkaller", 0 [pid 5131] memfd_create("syzkaller", 0 [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5123, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- [pid 4997] <... rmdir resumed>) = 0 [pid 5132] <... memfd_create resumed>) = 3 [pid 5131] <... memfd_create resumed>) = 3 [pid 4997] getdents64(3, [pid 5132] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5131] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 4997] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 5132] <... mmap resumed>) = 0x7faaa11e5000 [pid 5000] umount2("./9", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5131] <... mmap resumed>) = 0x7faaa11e5000 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4997] close(3 [pid 5000] openat(AT_FDCWD, "./9", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5000] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] getdents64(3, 0x555557087620 /* 4 entries */, 32768) = 112 [pid 5000] umount2("./9/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./9/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] unlink("./9/binderfs") = 0 [pid 5000] umount2("./9/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4997] <... close resumed>) = 0 [pid 4997] rmdir("./9") = 0 [ 85.074141][ T5130] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 4997] mkdir("./10", 0777) = 0 [pid 4997] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 4997] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 4997] close(3) = 0 [pid 4997] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570865d0) = 5134 ./strace-static-x86_64: Process 5134 attached [pid 5134] chdir("./10") = 0 [pid 5134] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5134] setpgid(0, 0) = 0 [pid 5134] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5134] write(3, "1000", 4 [pid 5129] <... write resumed>) = 4194304 [ 85.129428][ T5130] REISERFS (device loop1): found reiserfs format "3.5" with non-standard journal [pid 5134] <... write resumed>) = 4 [pid 5134] close(3) = 0 [pid 5134] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5134] memfd_create("syzkaller", 0) = 3 [pid 5134] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7faaa11e5000 [pid 5129] munmap(0x7faaa11e5000, 4194304) = 0 [pid 5131] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5129] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 5129] ioctl(4, LOOP_SET_FD, 3 [ 85.183452][ T5130] REISERFS (device loop1): using ordered data mode [ 85.215037][ T5129] loop3: detected capacity change from 0 to 8192 [ 85.224340][ T5130] reiserfs: using flush barriers [pid 5132] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5129] <... ioctl resumed>) = 0 [pid 5129] close(3) = 0 [pid 5129] mkdir("./file0", 0777) = 0 [pid 5129] mount("/dev/loop3", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5134] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5000] <... umount2 resumed>) = 0 [ 85.248907][ T5130] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 85.281157][ T5129] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5000] umount2("./9/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./9/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] umount2("./9/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./9/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5000] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] getdents64(4, 0x55555708f660 /* 2 entries */, 32768) = 48 [pid 5000] getdents64(4, 0x55555708f660 /* 0 entries */, 32768) = 0 [pid 5000] close(4) = 0 [pid 5000] rmdir("./9/file0") = 0 [pid 5000] getdents64(3, 0x555557087620 /* 0 entries */, 32768) = 0 [pid 5000] close(3) = 0 [pid 5000] rmdir("./9") = 0 [pid 5000] mkdir("./10", 0777) = 0 [pid 5000] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5000] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5000] close(3) = 0 [pid 5000] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570865d0) = 5136 [ 85.322622][ T5129] REISERFS (device loop3): found reiserfs format "3.5" with non-standard journal [ 85.332346][ T5130] REISERFS (device loop1): checking transaction log (loop1) [ 85.357527][ T5129] REISERFS (device loop3): using ordered data mode [ 85.365810][ T5129] reiserfs: using flush barriers ./strace-static-x86_64: Process 5136 attached [pid 5134] <... write resumed>) = 4194304 [pid 5131] <... write resumed>) = 4194304 [pid 5136] chdir("./10" [pid 5134] munmap(0x7faaa11e5000, 4194304 [pid 5131] munmap(0x7faaa11e5000, 4194304 [pid 5136] <... chdir resumed>) = 0 [pid 5134] <... munmap resumed>) = 0 [pid 5136] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5134] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5132] <... write resumed>) = 4194304 [pid 5131] <... munmap resumed>) = 0 [pid 5130] <... mount resumed>) = 0 [pid 5130] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5130] chdir("./file0" [pid 5136] <... prctl resumed>) = 0 [pid 5134] <... openat resumed>) = 4 [pid 5132] munmap(0x7faaa11e5000, 4194304 [pid 5131] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5130] <... chdir resumed>) = 0 [pid 5130] ioctl(4, LOOP_CLR_FD) = 0 [pid 5130] close(4 [pid 5132] <... munmap resumed>) = 0 [pid 5136] setpgid(0, 0 [pid 5134] ioctl(4, LOOP_SET_FD, 3 [pid 5132] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5131] <... openat resumed>) = 4 [pid 5130] <... close resumed>) = 0 [pid 5130] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5136] <... setpgid resumed>) = 0 [ 85.386368][ T5129] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 85.403976][ T5130] REISERFS (device loop1): Using tea hash to sort names [ 85.418423][ T5130] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 85.421358][ T5129] REISERFS (device loop3): checking transaction log (loop3) [pid 5136] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5136] write(3, "1000", 4 [pid 5130] <... openat resumed>) = 4 [pid 5134] <... ioctl resumed>) = 0 [pid 5132] <... openat resumed>) = 4 [pid 5131] ioctl(4, LOOP_SET_FD, 3 [pid 5136] <... write resumed>) = 4 [pid 5134] close(3 [pid 5132] ioctl(4, LOOP_SET_FD, 3 [pid 5136] close(3 [pid 5134] <... close resumed>) = 0 [pid 5132] <... ioctl resumed>) = 0 [pid 5130] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 5134] mkdir("./file0", 0777 [pid 5136] <... close resumed>) = 0 [pid 5134] <... mkdir resumed>) = 0 [pid 5132] close(3 [pid 5134] mount("/dev/loop2", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5136] symlink("/dev/binderfs", "./binderfs" [pid 5132] <... close resumed>) = 0 [pid 5132] mkdir("./file0", 0777) = 0 [pid 5136] <... symlink resumed>) = 0 [pid 5132] mount("/dev/loop4", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [ 85.445166][ T5134] loop2: detected capacity change from 0 to 8192 [ 85.450685][ T5129] REISERFS (device loop3): Using tea hash to sort names [ 85.455455][ T5131] loop0: detected capacity change from 0 to 8192 [ 85.465627][ T5132] loop4: detected capacity change from 0 to 8192 [ 85.480656][ T5134] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5136] memfd_create("syzkaller", 0 [pid 5130] <... mmap resumed>) = 0x20000000 [pid 5136] <... memfd_create resumed>) = 3 [pid 5136] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5131] <... ioctl resumed>) = 0 [pid 5136] <... mmap resumed>) = 0x7faaa11e5000 [pid 5131] close(3) = 0 [pid 5131] mkdir("./file0", 0777) = 0 [pid 5131] mount("/dev/loop0", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5129] <... mount resumed>) = 0 [pid 5129] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5129] chdir("./file0") = 0 [pid 5129] ioctl(4, LOOP_CLR_FD) = 0 [pid 5129] close(4) = 0 [pid 5129] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5129] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0) = 0x20000000 [pid 5129] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5129] exit_group(0) = ? [pid 5129] +++ exited with 0 +++ [pid 5130] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5130] exit_group(0) = ? [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5129, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=13 /* 0.13 s */} --- [pid 5130] +++ exited with 0 +++ [pid 4996] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5130, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 4998] umount2("./10", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./10", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [ 85.483432][ T5129] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 85.494649][ T5131] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 85.516536][ T5132] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 85.530799][ T5132] REISERFS (device loop4): found reiserfs format "3.5" with non-standard journal [pid 4998] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] getdents64(3, 0x555557087620 /* 4 entries */, 32768) = 112 [pid 4996] umount2("./10", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] umount2("./10/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4996] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4996] openat(AT_FDCWD, "./10", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4998] lstat("./10/binderfs", [pid 4996] <... openat resumed>) = 3 [pid 4998] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4996] fstat(3, [pid 4998] unlink("./10/binderfs" [pid 4996] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] <... unlink resumed>) = 0 [pid 4996] getdents64(3, [pid 4998] umount2("./10/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4996] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 4996] umount2("./10/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4996] lstat("./10/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4996] unlink("./10/binderfs") = 0 [ 85.541142][ T5132] REISERFS (device loop4): using ordered data mode [ 85.548586][ T5132] reiserfs: using flush barriers [ 85.555973][ T5134] REISERFS (device loop2): found reiserfs format "3.5" with non-standard journal [ 85.565806][ T5134] REISERFS (device loop2): using ordered data mode [ 85.572914][ T5134] reiserfs: using flush barriers [ 85.579542][ T5131] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 85.588853][ T5131] REISERFS (device loop0): using ordered data mode [ 85.595562][ T5131] reiserfs: using flush barriers [ 85.600656][ T5132] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 85.618082][ T5131] 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 [ 85.635050][ T5132] REISERFS (device loop4): checking transaction log (loop4) [pid 4996] umount2("./10/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] <... umount2 resumed>) = 0 [pid 4998] umount2("./10/file0", MNT_DETACH|UMOUNT_NOFOLLOW [ 85.642807][ T5131] REISERFS (device loop0): checking transaction log (loop0) [ 85.644272][ T5134] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 85.651127][ T5132] REISERFS (device loop4): Using tea hash to sort names [ 85.685883][ T5131] REISERFS (device loop0): Using tea hash to sort names [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 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./10/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] umount2("./10/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./10/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 4998] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] getdents64(4, 0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4998] getdents64(4, 0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4998] close(4) = 0 [pid 4998] rmdir("./10/file0") = 0 [pid 4998] getdents64(3, 0x555557087620 /* 0 entries */, 32768) = 0 [pid 4998] close(3) = 0 [pid 4998] rmdir("./10") = 0 [pid 4998] mkdir("./11", 0777) = 0 [pid 4998] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 4998] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 4998] close(3) = 0 [ 85.693186][ T5131] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 4998] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570865d0) = 5140 [pid 5131] <... mount resumed>) = 0 [pid 5131] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 ./strace-static-x86_64: Process 5140 attached [pid 5131] chdir("./file0" [pid 4996] <... umount2 resumed>) = 0 [pid 5140] chdir("./11" [pid 5131] <... chdir resumed>) = 0 [pid 5140] <... chdir resumed>) = 0 [pid 5132] <... mount resumed>) = 0 [pid 5131] ioctl(4, LOOP_CLR_FD [pid 4996] umount2("./10/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5140] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5131] <... ioctl resumed>) = 0 [pid 5140] <... prctl resumed>) = 0 [pid 5131] close(4 [pid 4996] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5140] setpgid(0, 0 [pid 5131] <... close resumed>) = 0 [pid 5140] <... setpgid resumed>) = 0 [pid 5131] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4996] lstat("./10/file0", [pid 5140] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5131] <... openat resumed>) = 4 [pid 5140] <... openat resumed>) = 3 [pid 4996] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5140] write(3, "1000", 4 [pid 5131] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 4996] umount2("./10/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5140] <... write resumed>) = 4 [pid 5140] close(3 [pid 5131] <... mmap resumed>) = 0x20000000 [pid 4996] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5140] <... close resumed>) = 0 [pid 5131] ioctl(4, FS_IOC_GETVERSION [pid 4996] openat(AT_FDCWD, "./10/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5140] symlink("/dev/binderfs", "./binderfs" [pid 5131] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 4996] <... openat resumed>) = 4 [pid 5140] <... symlink resumed>) = 0 [pid 5131] exit_group(0 [pid 4996] fstat(4, [pid 5140] memfd_create("syzkaller", 0 [pid 5132] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5131] <... exit_group resumed>) = ? [pid 4996] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5140] <... memfd_create resumed>) = 3 [pid 4996] getdents64(4, [pid 5140] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5132] <... openat resumed>) = 3 [pid 5131] +++ exited with 0 +++ [pid 4996] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 5140] <... mmap resumed>) = 0x7faaa11e5000 [pid 5132] chdir("./file0" [pid 4996] getdents64(4, [pid 4995] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5131, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 4996] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [ 85.740187][ T5132] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 85.767582][ T5134] REISERFS (device loop2): checking transaction log (loop2) [pid 4996] close(4) = 0 [pid 5132] <... chdir resumed>) = 0 [pid 4996] rmdir("./10/file0" [pid 5132] ioctl(4, LOOP_CLR_FD [pid 4995] umount2("./10", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5132] <... ioctl resumed>) = 0 [pid 4996] <... rmdir resumed>) = 0 [pid 4995] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5132] close(4 [pid 4996] getdents64(3, [pid 4995] openat(AT_FDCWD, "./10", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5132] <... close resumed>) = 0 [pid 4996] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 4995] <... openat resumed>) = 3 [pid 5132] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4996] close(3 [pid 4995] fstat(3, [pid 5132] <... openat resumed>) = 4 [pid 4996] <... close resumed>) = 0 [pid 4995] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5132] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 4996] rmdir("./10" [pid 4995] getdents64(3, [pid 5132] <... mmap resumed>) = 0x20000000 [pid 4996] <... rmdir resumed>) = 0 [pid 4995] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 5132] ioctl(4, FS_IOC_GETVERSION [pid 4996] mkdir("./11", 0777 [pid 4995] umount2("./10/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5132] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 4995] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5132] exit_group(0 [pid 4996] <... mkdir resumed>) = 0 [pid 4995] lstat("./10/binderfs", [pid 5132] <... exit_group resumed>) = ? [pid 4996] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4995] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4995] unlink("./10/binderfs" [pid 5132] +++ exited with 0 +++ [pid 4996] <... openat resumed>) = 3 [pid 4995] <... unlink resumed>) = 0 [pid 4996] ioctl(3, LOOP_CLR_FD [pid 4995] umount2("./10/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5132, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=11 /* 0.11 s */} --- [ 85.800623][ T5134] REISERFS (device loop2): Using tea hash to sort names [pid 4996] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4999] umount2("./11", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4996] close(3 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./11", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4996] <... close resumed>) = 0 [pid 4999] <... openat resumed>) = 3 [pid 4999] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] getdents64(3, 0x555557087620 /* 4 entries */, 32768) = 112 [pid 4996] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4999] umount2("./11/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] lstat("./11/binderfs", [pid 4996] <... clone resumed>, child_tidptr=0x5555570865d0) = 5141 [pid 4999] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4999] unlink("./11/binderfs"./strace-static-x86_64: Process 5141 attached ) = 0 [pid 5141] chdir("./11" [pid 4999] umount2("./11/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5141] <... chdir resumed>) = 0 [pid 5141] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5141] setpgid(0, 0) = 0 [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 [pid 5141] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5141] write(3, "1000", 4) = 4 [pid 5141] close(3) = 0 [pid 5141] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5141] memfd_create("syzkaller", 0) = 3 [pid 5141] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5136] <... write resumed>) = 4194304 [pid 5141] <... mmap resumed>) = 0x7faaa11e5000 [pid 5134] <... mount resumed>) = 0 [ 85.857082][ T5134] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 5134] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5136] munmap(0x7faaa11e5000, 4194304 [pid 5134] <... openat resumed>) = 3 [pid 5136] <... munmap resumed>) = 0 [pid 5134] chdir("./file0") = 0 [pid 5134] ioctl(4, LOOP_CLR_FD) = 0 [pid 5134] close(4) = 0 [pid 5134] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5136] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5134] <... openat resumed>) = 4 [pid 5136] <... openat resumed>) = 4 [pid 5134] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 5136] ioctl(4, LOOP_SET_FD, 3 [pid 5134] <... mmap resumed>) = 0x20000000 [pid 5134] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5134] exit_group(0) = ? [pid 5134] +++ exited with 0 +++ [pid 4997] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5134, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- [pid 4997] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 4997] umount2("./10", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4997] openat(AT_FDCWD, "./10", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 4997] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4997] getdents64(3, 0x555557087620 /* 4 entries */, 32768) = 112 [pid 4997] umount2("./10/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4997] lstat("./10/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4997] unlink("./10/binderfs") = 0 [pid 4997] umount2("./10/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5136] <... ioctl resumed>) = 0 [pid 5136] close(3) = 0 [pid 5136] mkdir("./file0", 0777) = 0 [ 85.948462][ T5136] loop5: detected capacity change from 0 to 8192 [pid 5136] mount("/dev/loop5", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 4997] <... umount2 resumed>) = 0 [pid 4997] umount2("./10/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4997] lstat("./10/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4997] umount2("./10/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 85.986307][ T5136] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 4997] openat(AT_FDCWD, "./10/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 4997] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4997] getdents64(4, 0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4997] getdents64(4, [pid 4999] <... umount2 resumed>) = 0 [pid 4997] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4997] close(4) = 0 [pid 4997] rmdir("./10/file0" [pid 4999] umount2("./11/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4997] <... rmdir resumed>) = 0 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4997] getdents64(3, [pid 4999] lstat("./11/file0", [pid 4997] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 4999] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4997] close(3 [pid 4999] umount2("./11/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4997] <... close resumed>) = 0 [pid 4999] openat(AT_FDCWD, "./11/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4997] rmdir("./10" [pid 4995] <... umount2 resumed>) = 0 [pid 5141] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 4999] <... openat resumed>) = 4 [pid 4999] fstat(4, [pid 4997] <... rmdir resumed>) = 0 [ 86.050693][ T5136] REISERFS (device loop5): found reiserfs format "3.5" with non-standard journal [ 86.061047][ T5136] REISERFS (device loop5): using ordered data mode [ 86.068245][ T5136] reiserfs: using flush barriers [ 86.077891][ T5136] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 4999] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4997] mkdir("./11", 0777 [pid 4995] umount2("./10/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4995] lstat("./10/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4995] umount2("./10/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4995] openat(AT_FDCWD, "./10/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4999] getdents64(4, [pid 4995] <... openat resumed>) = 4 [pid 4999] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4997] <... mkdir resumed>) = 0 [pid 4995] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4995] getdents64(4, 0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4999] getdents64(4, [pid 4997] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4999] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4997] <... openat resumed>) = 3 [pid 4995] getdents64(4, 0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4999] close(4 [pid 4997] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 4999] <... close resumed>) = 0 [pid 4995] close(4) = 0 [pid 4999] rmdir("./11/file0" [pid 4997] close(3 [pid 4995] rmdir("./10/file0") = 0 [pid 4995] getdents64(3, 0x555557087620 /* 0 entries */, 32768) = 0 [pid 4995] close(3) = 0 [pid 4995] rmdir("./10") = 0 [pid 4995] mkdir("./11", 0777 [pid 5136] <... mount resumed>) = 0 [pid 4999] <... rmdir resumed>) = 0 [pid 4997] <... close resumed>) = 0 [pid 4995] <... mkdir resumed>) = 0 [pid 4995] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5140] <... write resumed>) = 4194304 [pid 5136] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 4999] getdents64(3, [pid 4997] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4995] <... openat resumed>) = 3 [pid 5140] munmap(0x7faaa11e5000, 4194304 [pid 4995] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 5143 attached [pid 5140] <... munmap resumed>) = 0 [pid 5136] <... openat resumed>) = 3 [pid 4999] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 4995] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4999] close(3 [pid 4997] <... clone resumed>, child_tidptr=0x5555570865d0) = 5143 [pid 4995] close(3 [pid 5136] chdir("./file0" [pid 4999] <... close resumed>) = 0 [pid 4995] <... close resumed>) = 0 [pid 4999] rmdir("./11" [pid 4995] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5143] chdir("./11" [pid 5140] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5136] <... chdir resumed>) = 0 [pid 4999] <... rmdir resumed>) = 0 [pid 5140] <... openat resumed>) = 4 [pid 4999] mkdir("./12", 0777 [pid 4995] <... clone resumed>, child_tidptr=0x5555570865d0) = 5144 ./strace-static-x86_64: Process 5144 attached [pid 5143] <... chdir resumed>) = 0 [pid 5140] ioctl(4, LOOP_SET_FD, 3 [ 86.096966][ T5136] REISERFS (device loop5): checking transaction log (loop5) [ 86.110240][ T5136] REISERFS (device loop5): Using tea hash to sort names [ 86.120457][ T5136] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 5136] ioctl(4, LOOP_CLR_FD [pid 4999] <... mkdir resumed>) = 0 [pid 5144] chdir("./11" [pid 5143] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5141] <... write resumed>) = 4194304 [pid 5136] <... ioctl resumed>) = 0 [pid 5144] <... chdir resumed>) = 0 [pid 5143] <... prctl resumed>) = 0 [pid 5141] munmap(0x7faaa11e5000, 4194304 [pid 5136] close(4 [pid 5144] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5143] setpgid(0, 0 [pid 5141] <... munmap resumed>) = 0 [pid 5136] <... close resumed>) = 0 [pid 4999] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5144] <... prctl resumed>) = 0 [pid 5143] <... setpgid resumed>) = 0 [pid 5141] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5136] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4999] <... openat resumed>) = 3 [pid 5144] setpgid(0, 0 [pid 5143] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5141] <... openat resumed>) = 4 [pid 5136] <... openat resumed>) = 4 [pid 4999] ioctl(3, LOOP_CLR_FD [pid 5144] <... setpgid resumed>) = 0 [pid 5143] <... openat resumed>) = 3 [pid 5141] ioctl(4, LOOP_SET_FD, 3 [pid 5136] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 4999] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5144] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5143] write(3, "1000", 4 [pid 5140] <... ioctl resumed>) = 0 [pid 4999] close(3 [pid 5140] close(3 [pid 5136] <... mmap resumed>) = 0x20000000 [pid 4999] <... close resumed>) = 0 [pid 5144] <... openat resumed>) = 3 [pid 5143] <... write resumed>) = 4 [pid 5144] write(3, "1000", 4 [pid 5143] close(3 [pid 5140] <... close resumed>) = 0 [pid 5136] ioctl(4, FS_IOC_GETVERSION [pid 4999] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5144] <... write resumed>) = 4 [pid 5143] <... close resumed>) = 0 [pid 5141] <... ioctl resumed>) = 0 [pid 5140] mkdir("./file0", 0777 [pid 5136] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) ./strace-static-x86_64: Process 5145 attached [pid 5144] close(3 [pid 5143] symlink("/dev/binderfs", "./binderfs" [pid 5141] close(3 [pid 5136] exit_group(0 [pid 4999] <... clone resumed>, child_tidptr=0x5555570865d0) = 5145 [pid 5145] chdir("./12" [pid 5144] <... close resumed>) = 0 [pid 5143] <... symlink resumed>) = 0 [pid 5141] <... close resumed>) = 0 [pid 5140] <... mkdir resumed>) = 0 [pid 5136] <... exit_group resumed>) = ? [pid 5145] <... chdir resumed>) = 0 [pid 5144] symlink("/dev/binderfs", "./binderfs" [pid 5143] memfd_create("syzkaller", 0 [pid 5141] mkdir("./file0", 0777 [pid 5140] mount("/dev/loop3", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5136] +++ exited with 0 +++ [pid 5145] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5144] <... symlink resumed>) = 0 [pid 5143] <... memfd_create resumed>) = 3 [pid 5141] <... mkdir resumed>) = 0 [pid 5145] <... prctl resumed>) = 0 [pid 5144] memfd_create("syzkaller", 0 [pid 5143] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [ 86.176270][ T5140] loop3: detected capacity change from 0 to 8192 [ 86.199987][ T5141] loop1: detected capacity change from 0 to 8192 [pid 5141] mount("/dev/loop1", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5136, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- [pid 5145] setpgid(0, 0 [pid 5144] <... memfd_create resumed>) = 3 [pid 5143] <... mmap resumed>) = 0x7faaa11e5000 [pid 5145] <... setpgid resumed>) = 0 [pid 5144] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5145] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5144] <... mmap resumed>) = 0x7faaa11e5000 [pid 5145] <... openat resumed>) = 3 [pid 5145] write(3, "1000", 4) = 4 [pid 5145] close(3) = 0 [pid 5000] umount2("./10", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5145] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5145] memfd_create("syzkaller", 0) = 3 [pid 5145] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7faaa11e5000 [ 86.246603][ T5140] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 86.260128][ T5140] REISERFS (device loop3): found reiserfs format "3.5" with non-standard journal [ 86.270631][ T5140] REISERFS (device loop3): using ordered data mode [ 86.277740][ T5140] reiserfs: using flush barriers [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./10", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5000] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] getdents64(3, 0x555557087620 /* 4 entries */, 32768) = 112 [pid 5000] umount2("./10/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./10/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] unlink("./10/binderfs") = 0 [pid 5000] umount2("./10/file0", MNT_DETACH|UMOUNT_NOFOLLOW [ 86.284023][ T5140] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 86.301381][ T5141] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5145] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 [ 86.354616][ T5141] REISERFS (device loop1): found reiserfs format "3.5" with non-standard journal [ 86.355381][ T5140] REISERFS (device loop3): checking transaction log (loop3) [ 86.373113][ T5140] REISERFS (device loop3): Using tea hash to sort names [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(0x7faaa11e5000, 4194304) = 0 [pid 5144] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5143] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5144] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5144] close(3) = 0 [pid 5144] mkdir("./file0", 0777) = 0 [ 86.407523][ T5140] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 86.437359][ T5144] loop0: detected capacity change from 0 to 8192 [pid 5144] mount("/dev/loop0", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5140] <... mount resumed>) = 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 [ 86.452559][ T5144] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 86.468935][ T5141] REISERFS (device loop1): using ordered data mode [ 86.475719][ T5141] reiserfs: using flush barriers [pid 5140] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5140] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0) = 0x20000000 [pid 5140] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5140] exit_group(0) = ? [pid 5000] <... umount2 resumed>) = 0 [pid 5143] <... write resumed>) = 4194304 [pid 5140] +++ exited with 0 +++ [pid 5000] umount2("./10/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5143] munmap(0x7faaa11e5000, 4194304 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5140, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- [pid 5143] <... munmap resumed>) = 0 [pid 5000] lstat("./10/file0", [pid 5143] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5000] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] umount2("./11", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5143] <... openat resumed>) = 4 [pid 5000] umount2("./10/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 86.498884][ T5141] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 86.515774][ T5141] REISERFS (device loop1): checking transaction log (loop1) [ 86.524169][ T5144] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [pid 5145] <... write resumed>) = 4194304 [pid 5143] ioctl(4, LOOP_SET_FD, 3 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./11", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 4998] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] getdents64(3, [pid 5145] munmap(0x7faaa11e5000, 4194304 [pid 4998] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 4998] umount2("./11/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./11/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4998] unlink("./11/binderfs") = 0 [pid 4998] umount2("./11/file0", MNT_DETACH|UMOUNT_NOFOLLOW [ 86.556797][ T5144] REISERFS (device loop0): using ordered data mode [ 86.558094][ T5141] REISERFS (device loop1): Using tea hash to sort names [ 86.564030][ T5144] reiserfs: using flush barriers [ 86.575827][ T5143] loop2: detected capacity change from 0 to 8192 [ 86.589380][ T5141] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [pid 5000] openat(AT_FDCWD, "./10/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5145] <... munmap resumed>) = 0 [pid 5145] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5143] <... ioctl resumed>) = 0 [pid 5141] <... mount resumed>) = 0 [pid 5000] <... openat resumed>) = 4 [pid 5145] <... openat resumed>) = 4 [pid 5143] close(3 [pid 5141] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5000] fstat(4, [pid 5145] ioctl(4, LOOP_SET_FD, 3 [pid 5143] <... close resumed>) = 0 [pid 5141] <... openat resumed>) = 3 [pid 5000] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5143] mkdir("./file0", 0777 [pid 5141] chdir("./file0" [pid 5000] getdents64(4, [pid 5143] <... mkdir resumed>) = 0 [pid 5141] <... chdir resumed>) = 0 [pid 5000] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 5143] mount("/dev/loop2", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5141] ioctl(4, LOOP_CLR_FD [pid 5000] getdents64(4, [pid 5141] <... ioctl resumed>) = 0 [pid 5000] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 5141] close(4 [ 86.594947][ 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 [ 86.600628][ T5145] loop4: detected capacity change from 0 to 8192 [ 86.619964][ T5144] REISERFS (device loop0): checking transaction log (loop0) [ 86.631981][ T5144] REISERFS (device loop0): Using tea hash to sort names [ 86.639466][ T5143] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5000] close(4 [pid 5141] <... close resumed>) = 0 [pid 5000] <... close resumed>) = 0 [pid 5145] <... ioctl resumed>) = 0 [pid 5145] close(3 [pid 5141] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5000] rmdir("./10/file0" [pid 5145] <... close resumed>) = 0 [pid 5145] mkdir("./file0", 0777 [pid 5141] <... openat resumed>) = 4 [pid 5000] <... rmdir resumed>) = 0 [pid 5145] <... mkdir resumed>) = 0 [pid 5141] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 5000] getdents64(3, [pid 5145] mount("/dev/loop4", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5141] <... mmap resumed>) = 0x20000000 [pid 5000] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 5141] ioctl(4, FS_IOC_GETVERSION [pid 5000] close(3 [pid 5141] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5000] <... close resumed>) = 0 [pid 5141] exit_group(0) = ? [pid 5000] rmdir("./10" [pid 5141] +++ exited with 0 +++ [ 86.639914][ T5144] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5000] <... rmdir resumed>) = 0 [pid 4996] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5141, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- [pid 4998] <... umount2 resumed>) = 0 [pid 4996] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 4996] umount2("./11", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4996] openat(AT_FDCWD, "./11", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 4996] fstat(3, [pid 5000] mkdir("./11", 0777 [pid 4996] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4996] getdents64(3, [pid 5000] <... mkdir resumed>) = 0 [pid 4996] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 5000] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4996] umount2("./11/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] <... openat resumed>) = 3 [pid 4996] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] ioctl(3, LOOP_CLR_FD [pid 4996] lstat("./11/binderfs", [pid 5000] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4996] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] close(3 [pid 4996] unlink("./11/binderfs" [pid 5000] <... close resumed>) = 0 [pid 4996] <... unlink resumed>) = 0 [pid 5144] <... mount resumed>) = 0 [pid 5000] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4996] umount2("./11/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5144] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5144] chdir("./file0" [pid 5000] <... clone resumed>, child_tidptr=0x5555570865d0) = 5151 [pid 5144] <... chdir resumed>) = 0 [pid 5144] ioctl(4, LOOP_CLR_FD) = 0 [pid 5144] close(4) = 0 [pid 5144] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [ 86.681326][ T5145] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 86.694512][ T5143] REISERFS (device loop2): found reiserfs format "3.5" with non-standard journal [pid 5144] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0./strace-static-x86_64: Process 5151 attached ) = 0x20000000 [pid 4998] umount2("./11/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5151] chdir("./11" [ 86.725136][ T5143] REISERFS (device loop2): using ordered data mode [ 86.729868][ T5145] REISERFS (device loop4): found reiserfs format "3.5" with non-standard journal [ 86.733047][ T5143] reiserfs: using flush barriers [ 86.747686][ T5143] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5144] ioctl(4, FS_IOC_GETVERSION [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5151] <... chdir resumed>) = 0 [pid 5144] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 4998] lstat("./11/file0", [pid 5151] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [ 86.771906][ T5145] REISERFS (device loop4): using ordered data mode [ 86.778883][ T5145] reiserfs: using flush barriers [ 86.786318][ T5143] REISERFS (device loop2): checking transaction log (loop2) [ 86.788544][ T5145] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 86.811338][ T5143] REISERFS (device loop2): Using tea hash to sort names [pid 5144] exit_group(0 [pid 4998] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5151] setpgid(0, 0 [pid 5144] <... exit_group resumed>) = ? [pid 4998] umount2("./11/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5151] <... setpgid resumed>) = 0 [pid 5144] +++ exited with 0 +++ [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5151] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4998] openat(AT_FDCWD, "./11/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5151] <... openat resumed>) = 3 [pid 4998] <... openat resumed>) = 4 [pid 4995] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5144, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=17 /* 0.17 s */} --- [pid 5151] write(3, "1000", 4 [pid 4998] fstat(4, [pid 4995] umount2("./11", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5151] <... write resumed>) = 4 [pid 4998] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4995] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5151] close(3 [pid 4998] getdents64(4, [pid 4995] openat(AT_FDCWD, "./11", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5151] <... close resumed>) = 0 [pid 4998] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4995] <... openat resumed>) = 3 [pid 5151] symlink("/dev/binderfs", "./binderfs" [pid 4998] getdents64(4, [pid 4995] fstat(3, [pid 5151] <... symlink resumed>) = 0 [pid 4998] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4995] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5151] memfd_create("syzkaller", 0 [pid 4998] close(4 [pid 4995] getdents64(3, [pid 5151] <... memfd_create resumed>) = 3 [pid 5151] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5143] <... mount resumed>) = 0 [pid 4998] <... close resumed>) = 0 [pid 4995] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 5151] <... mmap resumed>) = 0x7faaa11e5000 [pid 5143] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 4998] rmdir("./11/file0" [pid 4995] umount2("./11/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5143] <... openat resumed>) = 3 [pid 4998] <... rmdir resumed>) = 0 [pid 4995] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5143] chdir("./file0" [pid 4998] getdents64(3, [pid 4995] lstat("./11/binderfs", [pid 5143] <... chdir resumed>) = 0 [pid 4998] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 5143] ioctl(4, LOOP_CLR_FD [pid 4998] close(3 [pid 4995] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5143] <... ioctl resumed>) = 0 [pid 4995] unlink("./11/binderfs" [pid 5143] close(4 [pid 4998] <... close resumed>) = 0 [pid 5143] <... close resumed>) = 0 [pid 4998] rmdir("./11" [pid 4995] <... unlink resumed>) = 0 [pid 5143] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4998] <... rmdir resumed>) = 0 [pid 5143] <... openat resumed>) = 4 [pid 4998] mkdir("./12", 0777 [pid 4995] umount2("./11/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5143] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 4998] <... mkdir resumed>) = 0 [pid 5143] <... mmap resumed>) = 0x20000000 [pid 4998] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5143] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 4998] <... openat resumed>) = 3 [pid 5143] exit_group(0 [pid 4998] ioctl(3, LOOP_CLR_FD [pid 5143] <... exit_group resumed>) = ? [pid 4998] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5143] +++ exited with 0 +++ [ 86.818930][ T5145] REISERFS (device loop4): checking transaction log (loop4) [ 86.828250][ T5143] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 86.828978][ T5145] REISERFS (device loop4): Using tea hash to sort names [pid 4998] close(3) = 0 [pid 4997] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5143, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- [pid 4998] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570865d0) = 5152 [pid 4996] <... umount2 resumed>) = 0 [pid 4997] umount2("./11", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5152 attached ) = -1 EINVAL (Invalid argument) [pid 4996] umount2("./11/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5152] chdir("./12" [pid 4997] openat(AT_FDCWD, "./11", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5152] <... chdir resumed>) = 0 [pid 4996] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5152] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5145] <... mount resumed>) = 0 [pid 4997] <... openat resumed>) = 3 [pid 4996] lstat("./11/file0", [pid 5152] <... prctl resumed>) = 0 [pid 5145] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 4997] fstat(3, [pid 5152] setpgid(0, 0 [pid 5145] <... openat resumed>) = 3 [pid 4997] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4996] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5152] <... setpgid resumed>) = 0 [pid 5145] chdir("./file0" [pid 4997] getdents64(3, [pid 4996] umount2("./11/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5152] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5145] <... chdir resumed>) = 0 [pid 4997] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 5152] <... openat resumed>) = 3 [pid 5145] ioctl(4, LOOP_CLR_FD [pid 4997] umount2("./11/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4996] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5152] write(3, "1000", 4 [pid 5145] <... ioctl resumed>) = 0 [pid 4997] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4996] openat(AT_FDCWD, "./11/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5152] <... write resumed>) = 4 [pid 5145] close(4 [pid 4997] lstat("./11/binderfs", [pid 5152] close(3 [pid 5145] <... close resumed>) = 0 [pid 4996] <... openat resumed>) = 4 [pid 5152] <... close resumed>) = 0 [pid 5145] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4997] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4996] fstat(4, [pid 5152] symlink("/dev/binderfs", "./binderfs" [pid 5145] <... openat resumed>) = 4 [pid 4997] unlink("./11/binderfs" [pid 4996] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5152] <... symlink resumed>) = 0 [pid 5145] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 5152] memfd_create("syzkaller", 0 [pid 5145] <... mmap resumed>) = 0x20000000 [pid 4997] <... unlink resumed>) = 0 [pid 4996] getdents64(4, [pid 5152] <... memfd_create resumed>) = 3 [pid 5145] ioctl(4, FS_IOC_GETVERSION [pid 4997] umount2("./11/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5152] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5145] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [ 86.879758][ T5145] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [pid 4996] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 5152] <... mmap resumed>) = 0x7faaa11e5000 [pid 5151] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5145] exit_group(0 [pid 4996] getdents64(4, [pid 5145] <... exit_group resumed>) = ? [pid 4996] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 5145] +++ exited with 0 +++ [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5145, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- [pid 4996] close(4) = 0 [pid 4996] rmdir("./11/file0") = 0 [pid 4996] getdents64(3, 0x555557087620 /* 0 entries */, 32768) = 0 [pid 4996] close(3 [pid 4999] umount2("./12", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4996] <... close resumed>) = 0 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4996] rmdir("./11" [pid 4999] openat(AT_FDCWD, "./12", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4996] <... rmdir resumed>) = 0 [pid 4999] <... openat resumed>) = 3 [pid 4996] mkdir("./12", 0777 [pid 4999] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4996] <... mkdir resumed>) = 0 [pid 4999] getdents64(3, [pid 4996] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4999] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 4999] umount2("./12/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4996] <... openat resumed>) = 3 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4996] ioctl(3, LOOP_CLR_FD [pid 4999] lstat("./12/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4996] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4999] unlink("./12/binderfs" [pid 4996] close(3 [pid 4999] <... unlink resumed>) = 0 [pid 4999] umount2("./12/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4996] <... close resumed>) = 0 [pid 4996] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570865d0) = 5153 ./strace-static-x86_64: Process 5153 attached [pid 5153] chdir("./12") = 0 [pid 5153] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5153] setpgid(0, 0) = 0 [pid 5153] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5153] write(3, "1000", 4) = 4 [pid 5153] close(3) = 0 [pid 5153] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5153] memfd_create("syzkaller", 0) = 3 [pid 5153] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7faaa11e5000 [pid 4995] <... umount2 resumed>) = 0 [pid 4995] umount2("./11/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4995] lstat("./11/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4995] umount2("./11/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4995] openat(AT_FDCWD, "./11/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 4995] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4995] getdents64(4, 0x55555708f660 /* 2 entries */, 32768) = 48 [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 [pid 5153] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 4995] getdents64(4, 0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4995] close(4) = 0 [pid 4995] rmdir("./11/file0") = 0 [pid 4995] getdents64(3, 0x555557087620 /* 0 entries */, 32768) = 0 [pid 4995] close(3) = 0 [pid 4995] rmdir("./11") = 0 [pid 4995] mkdir("./12", 0777) = 0 [pid 4995] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 4995] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 4995] close(3) = 0 [pid 4995] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570865d0) = 5154 [pid 4997] <... umount2 resumed>) = 0 [pid 5151] <... write resumed>) = 4194304 [pid 4999] <... umount2 resumed>) = 0 [pid 4997] umount2("./11/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5151] munmap(0x7faaa11e5000, 4194304 [pid 4997] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4997] lstat("./11/file0", ./strace-static-x86_64: Process 5154 attached {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5154] chdir("./12" [pid 5151] <... munmap resumed>) = 0 [pid 4997] umount2("./11/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5154] <... chdir resumed>) = 0 [pid 5151] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4997] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5154] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5151] <... openat resumed>) = 4 [pid 4997] openat(AT_FDCWD, "./11/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5154] <... prctl resumed>) = 0 [pid 5151] ioctl(4, LOOP_SET_FD, 3 [pid 4997] <... openat resumed>) = 4 [pid 5154] setpgid(0, 0 [pid 4997] fstat(4, [pid 5154] <... setpgid resumed>) = 0 [pid 4997] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5154] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4997] getdents64(4, [pid 5154] <... openat resumed>) = 3 [pid 4997] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 5154] write(3, "1000", 4 [pid 4997] getdents64(4, [pid 5154] <... write resumed>) = 4 [pid 4999] umount2("./12/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4997] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 5154] close(3 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4997] close(4 [pid 5154] <... close resumed>) = 0 [pid 5151] <... ioctl resumed>) = 0 [pid 4999] lstat("./12/file0", [pid 4997] <... close resumed>) = 0 [pid 5154] symlink("/dev/binderfs", "./binderfs" [pid 5151] close(3 [pid 4999] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4997] rmdir("./11/file0" [pid 5154] <... symlink resumed>) = 0 [pid 5151] <... close resumed>) = 0 [pid 4999] umount2("./12/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4997] <... rmdir resumed>) = 0 [pid 5154] memfd_create("syzkaller", 0 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4997] getdents64(3, [pid 5154] <... memfd_create resumed>) = 3 [pid 5151] mkdir("./file0", 0777 [pid 4999] openat(AT_FDCWD, "./12/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4997] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 5154] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 4999] <... openat resumed>) = 4 [pid 4997] close(3 [pid 5154] <... mmap resumed>) = 0x7faaa11e5000 [pid 5151] <... mkdir resumed>) = 0 [pid 4999] fstat(4, [pid 4997] <... close resumed>) = 0 [pid 5151] mount("/dev/loop5", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 4999] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4997] rmdir("./11" [pid 4999] getdents64(4, [pid 4997] <... rmdir resumed>) = 0 [pid 4999] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [ 87.197960][ T5151] loop5: detected capacity change from 0 to 8192 [pid 4997] mkdir("./12", 0777 [pid 4999] getdents64(4, [pid 4997] <... mkdir resumed>) = 0 [pid 4999] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4997] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4999] close(4 [pid 4997] <... openat resumed>) = 3 [pid 4999] <... close resumed>) = 0 [pid 4997] ioctl(3, LOOP_CLR_FD [pid 4999] rmdir("./12/file0" [pid 4997] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4999] <... rmdir resumed>) = 0 [pid 4997] close(3 [pid 4999] getdents64(3, [pid 4997] <... close resumed>) = 0 [pid 4999] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 4997] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4999] close(3) = 0 [pid 4997] <... clone resumed>, child_tidptr=0x5555570865d0) = 5156 [pid 4999] rmdir("./12") = 0 [pid 4999] mkdir("./13", 0777) = 0 [pid 4999] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 4999] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 4999] close(3) = 0 [pid 4999] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5156 attached , child_tidptr=0x5555570865d0) = 5157 [pid 5156] chdir("./12") = 0 [pid 5156] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5156] setpgid(0, 0./strace-static-x86_64: Process 5157 attached ) = 0 [pid 5157] chdir("./13" [pid 5156] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5157] <... chdir resumed>) = 0 [pid 5156] <... openat resumed>) = 3 [pid 5152] <... write resumed>) = 4194304 [pid 5156] write(3, "1000", 4) = 4 [pid 5157] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5156] close(3) = 0 [pid 5157] <... prctl resumed>) = 0 [pid 5156] symlink("/dev/binderfs", "./binderfs" [pid 5157] setpgid(0, 0 [pid 5156] <... symlink resumed>) = 0 [pid 5157] <... setpgid resumed>) = 0 [pid 5156] memfd_create("syzkaller", 0) = 3 [pid 5156] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5157] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5156] <... mmap resumed>) = 0x7faaa11e5000 [ 87.245535][ T5151] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5157] <... openat resumed>) = 3 [pid 5154] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5153] <... write resumed>) = 4194304 [pid 5152] munmap(0x7faaa11e5000, 4194304 [pid 5157] write(3, "1000", 4 [pid 5152] <... munmap resumed>) = 0 [pid 5157] <... write resumed>) = 4 [pid 5153] munmap(0x7faaa11e5000, 4194304 [pid 5157] close(3 [pid 5152] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 5153] <... munmap resumed>) = 0 [pid 5152] ioctl(4, LOOP_SET_FD, 3 [pid 5157] <... close resumed>) = 0 [pid 5156] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5153] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5157] symlink("/dev/binderfs", "./binderfs" [pid 5153] <... openat resumed>) = 4 [pid 5157] <... symlink resumed>) = 0 [pid 5153] ioctl(4, LOOP_SET_FD, 3 [pid 5157] memfd_create("syzkaller", 0 [pid 5153] <... ioctl resumed>) = 0 [pid 5157] <... memfd_create resumed>) = 3 [pid 5153] close(3 [ 87.321239][ T5152] loop3: detected capacity change from 0 to 8192 [ 87.327785][ T5151] REISERFS (device loop5): found reiserfs format "3.5" with non-standard journal [ 87.342819][ T5153] loop1: detected capacity change from 0 to 8192 [ 87.355415][ T5151] REISERFS (device loop5): using ordered data mode [ 87.362081][ T5151] reiserfs: using flush barriers [pid 5157] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5152] <... ioctl resumed>) = 0 [pid 5157] <... mmap resumed>) = 0x7faaa11e5000 [pid 5153] <... close resumed>) = 0 [pid 5152] close(3 [pid 5153] mkdir("./file0", 0777 [pid 5152] <... close resumed>) = 0 [pid 5153] <... mkdir resumed>) = 0 [pid 5152] mkdir("./file0", 0777 [pid 5153] mount("/dev/loop1", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5152] <... mkdir resumed>) = 0 [pid 5152] mount("/dev/loop3", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5154] <... write resumed>) = 4194304 [ 87.369106][ T5151] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 87.389437][ T5151] REISERFS (device loop5): checking transaction log (loop5) [ 87.401939][ T5151] REISERFS (device loop5): Using tea hash to sort names [pid 5154] munmap(0x7faaa11e5000, 4194304) = 0 [pid 5154] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5154] ioctl(4, LOOP_SET_FD, 3 [pid 5157] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5151] <... mount resumed>) = 0 [pid 5154] <... ioctl resumed>) = 0 [pid 5154] close(3) = 0 [ 87.417328][ T5152] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 87.417915][ T5151] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 87.438420][ T5154] loop0: detected capacity change from 0 to 8192 [ 87.446185][ T5152] REISERFS (device loop3): found reiserfs format "3.5" with non-standard journal [pid 5154] mkdir("./file0", 0777 [pid 5151] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5154] <... mkdir resumed>) = 0 [pid 5154] mount("/dev/loop0", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5151] <... openat resumed>) = 3 [pid 5151] chdir("./file0") = 0 [pid 5151] ioctl(4, LOOP_CLR_FD) = 0 [pid 5151] close(4) = 0 [ 87.461056][ T5153] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5151] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5151] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0) = 0x20000000 [pid 5151] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5151] exit_group(0) = ? [pid 5151] +++ exited with 0 +++ [pid 5000] --- 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=11 /* 0.11 s */} --- [pid 5000] umount2("./11", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 87.494863][ T5153] REISERFS (device loop1): found reiserfs format "3.5" with non-standard journal [ 87.504611][ T5152] REISERFS (device loop3): using ordered data mode [ 87.511459][ T5153] REISERFS (device loop1): using ordered data mode [ 87.516500][ T5154] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 87.524922][ T5152] reiserfs: using flush barriers [ 87.536546][ T5153] reiserfs: using flush barriers [pid 5000] openat(AT_FDCWD, "./11", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5000] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] getdents64(3, 0x555557087620 /* 4 entries */, 32768) = 112 [pid 5156] <... write resumed>) = 4194304 [pid 5000] umount2("./11/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./11/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] unlink("./11/binderfs" [pid 5156] munmap(0x7faaa11e5000, 4194304 [pid 5000] <... unlink resumed>) = 0 [pid 5156] <... munmap resumed>) = 0 [pid 5000] umount2("./11/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5156] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5156] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5157] <... write resumed>) = 4194304 [pid 5157] munmap(0x7faaa11e5000, 4194304 [ 87.552984][ T5153] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 87.564761][ T5156] loop2: detected capacity change from 0 to 8192 [ 87.579388][ T5154] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 87.586811][ T5153] REISERFS (device loop1): checking transaction log (loop1) [pid 5156] close(3) = 0 [pid 5157] <... munmap resumed>) = 0 [pid 5157] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5157] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5157] close(3) = 0 [pid 5157] mkdir("./file0", 0777) = 0 [pid 5157] mount("/dev/loop4", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5156] mkdir("./file0", 0777) = 0 [pid 5153] <... mount resumed>) = 0 [ 87.599235][ T5152] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 87.616421][ T5153] REISERFS (device loop1): Using tea hash to sort names [ 87.623593][ T5157] loop4: detected capacity change from 0 to 8192 [ 87.631159][ T5153] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 87.633109][ T5154] REISERFS (device loop0): using ordered data mode [pid 5156] mount("/dev/loop2", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5153] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5153] chdir("./file0") = 0 [pid 5153] ioctl(4, LOOP_CLR_FD) = 0 [pid 5153] close(4) = 0 [pid 5153] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5153] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0) = 0x20000000 [ 87.642145][ T5152] REISERFS (device loop3): checking transaction log (loop3) [ 87.654495][ T5157] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 87.670750][ T5152] REISERFS (device loop3): Using tea hash to sort names [ 87.680194][ T5152] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 87.685607][ T5156] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5153] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5152] <... mount resumed>) = 0 [pid 5153] exit_group(0 [pid 5152] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5153] <... exit_group resumed>) = ? [pid 5152] <... openat resumed>) = 3 [pid 5153] +++ exited with 0 +++ [pid 5152] chdir("./file0") = 0 [pid 4996] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5153, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 5152] ioctl(4, LOOP_CLR_FD [pid 4996] restart_syscall(<... resuming interrupted clone ...> [pid 5152] <... ioctl resumed>) = 0 [pid 4996] <... restart_syscall resumed>) = 0 [pid 4996] umount2("./12", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4996] openat(AT_FDCWD, "./12", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 4996] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4996] getdents64(3, 0x555557087620 /* 4 entries */, 32768) = 112 [pid 4996] umount2("./12/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4996] lstat("./12/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4996] unlink("./12/binderfs" [pid 5152] close(4 [pid 4996] <... unlink resumed>) = 0 [pid 5152] <... close resumed>) = 0 [pid 4996] umount2("./12/file0", MNT_DETACH|UMOUNT_NOFOLLOW [ 87.706137][ T5156] REISERFS (device loop2): found reiserfs format "3.5" with non-standard journal [ 87.709568][ T5157] REISERFS (device loop4): found reiserfs format "3.5" with non-standard journal [ 87.715860][ T5154] reiserfs: using flush barriers [ 87.733686][ T5154] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5152] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5152] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0) = 0x20000000 [pid 5152] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5152] exit_group(0) = ? [pid 5154] <... mount resumed>) = 0 [pid 5152] +++ exited with 0 +++ [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5152, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=14 /* 0.14 s */} --- [pid 5154] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 4998] umount2("./12", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./12", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5154] <... openat resumed>) = 3 [pid 4998] <... openat resumed>) = 3 [pid 4998] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] getdents64(3, 0x555557087620 /* 4 entries */, 32768) = 112 [pid 4998] umount2("./12/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./12/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4998] unlink("./12/binderfs") = 0 [ 87.751107][ T5154] REISERFS (device loop0): checking transaction log (loop0) [ 87.760070][ T5154] REISERFS (device loop0): Using tea hash to sort names [ 87.768188][ T5154] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 87.777767][ T5157] REISERFS (device loop4): using ordered data mode [ 87.784732][ T5157] reiserfs: using flush barriers [pid 4998] umount2("./12/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5154] chdir("./file0" [pid 4996] <... umount2 resumed>) = 0 [pid 5154] <... chdir resumed>) = 0 [pid 5154] ioctl(4, LOOP_CLR_FD [pid 4996] umount2("./12/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] <... umount2 resumed>) = 0 [pid 5154] <... ioctl resumed>) = 0 [pid 5154] close(4) = 0 [pid 5000] umount2("./11/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4996] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5154] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./11/file0", [pid 4996] lstat("./12/file0", [pid 5154] <... openat resumed>) = 4 [pid 5000] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4996] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5154] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 5000] umount2("./11/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4996] umount2("./12/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5154] <... mmap resumed>) = 0x20000000 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] <... umount2 resumed>) = 0 [pid 4996] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5154] ioctl(4, FS_IOC_GETVERSION [pid 5000] openat(AT_FDCWD, "./11/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4998] umount2("./12/file0", MNT_DETACH|UMOUNT_NOFOLLOW [ 87.791825][ T5157] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 87.825082][ T5156] REISERFS (device loop2): using ordered data mode [ 87.831822][ T5156] reiserfs: using flush barriers [pid 4996] openat(AT_FDCWD, "./12/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5000] <... openat resumed>) = 4 [pid 4996] <... openat resumed>) = 4 [pid 5000] fstat(4, [pid 4996] fstat(4, [pid 5000] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4996] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] getdents64(4, [pid 4996] getdents64(4, [pid 5000] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4996] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 5000] getdents64(4, [pid 4996] getdents64(4, [pid 5000] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4996] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 5154] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5000] close(4 [pid 4996] close(4 [pid 5000] <... close resumed>) = 0 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4996] <... close resumed>) = 0 [pid 5154] exit_group(0 [pid 5000] rmdir("./11/file0" [pid 4998] lstat("./12/file0", [pid 4996] rmdir("./12/file0" [pid 5154] <... exit_group resumed>) = ? [pid 5000] <... rmdir resumed>) = 0 [pid 4998] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4996] <... rmdir resumed>) = 0 [pid 5000] getdents64(3, [pid 4998] umount2("./12/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4996] getdents64(3, [pid 5154] +++ exited with 0 +++ [pid 5000] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4996] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 5000] close(3 [pid 4998] openat(AT_FDCWD, "./12/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4996] close(3 [pid 5000] <... close resumed>) = 0 [pid 4998] <... openat resumed>) = 4 [pid 4996] <... close resumed>) = 0 [pid 4995] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5154, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=14 /* 0.14 s */} --- [pid 5000] rmdir("./11" [pid 4998] fstat(4, [pid 4996] rmdir("./12" [pid 4995] umount2("./12", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] <... rmdir resumed>) = 0 [pid 4998] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4996] <... rmdir resumed>) = 0 [pid 4995] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] mkdir("./12", 0777 [pid 4998] getdents64(4, [pid 4996] mkdir("./13", 0777 [pid 4995] openat(AT_FDCWD, "./12", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5000] <... mkdir resumed>) = 0 [pid 4998] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4996] <... mkdir resumed>) = 0 [pid 4995] <... openat resumed>) = 3 [pid 5000] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4996] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4995] fstat(3, [pid 5000] <... openat resumed>) = 3 [pid 4996] <... openat resumed>) = 3 [pid 4995] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] ioctl(3, LOOP_CLR_FD [pid 4998] getdents64(4, [pid 4996] ioctl(3, LOOP_CLR_FD [pid 4995] getdents64(3, [pid 5000] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4998] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4996] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4995] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [ 87.855507][ T5157] REISERFS (device loop4): checking transaction log (loop4) [ 87.867522][ T5157] REISERFS (device loop4): Using tea hash to sort names [ 87.887794][ T5157] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [pid 5000] close(3 [pid 4998] close(4 [pid 4996] close(3 [pid 4995] umount2("./12/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5157] <... mount resumed>) = 0 [pid 5000] <... close resumed>) = 0 [pid 4998] <... close resumed>) = 0 [pid 4996] <... close resumed>) = 0 [pid 4995] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5157] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5000] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4998] rmdir("./12/file0" [pid 4996] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4995] lstat("./12/binderfs", [pid 5157] <... openat resumed>) = 3 [pid 4995] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] <... clone resumed>, child_tidptr=0x5555570865d0) = 5163 [pid 4996] <... clone resumed>, child_tidptr=0x5555570865d0) = 5164 [pid 4995] unlink("./12/binderfs" [pid 5157] chdir("./file0" [pid 4998] <... rmdir resumed>) = 0 [pid 4995] <... unlink resumed>) = 0 [pid 5157] <... chdir resumed>) = 0 [pid 4998] getdents64(3, [pid 4995] umount2("./12/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5163 attached [pid 5157] ioctl(4, LOOP_CLR_FD [pid 4998] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 5164 attached [pid 5163] chdir("./12" [pid 5157] <... ioctl resumed>) = 0 [pid 4998] close(3 [pid 5164] chdir("./13" [pid 5163] <... chdir resumed>) = 0 [pid 5157] close(4 [pid 4998] <... close resumed>) = 0 [pid 5164] <... chdir resumed>) = 0 [pid 5163] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5157] <... close resumed>) = 0 [pid 4998] rmdir("./12" [pid 5164] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5163] <... prctl resumed>) = 0 [pid 5157] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5163] setpgid(0, 0 [pid 4998] <... rmdir resumed>) = 0 [pid 5164] <... prctl resumed>) = 0 [pid 5163] <... setpgid resumed>) = 0 [pid 5157] <... openat resumed>) = 4 [pid 4998] mkdir("./13", 0777 [pid 5164] setpgid(0, 0 [pid 5163] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5157] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 5164] <... setpgid resumed>) = 0 [pid 5163] <... openat resumed>) = 3 [pid 4998] <... mkdir resumed>) = 0 [pid 5163] write(3, "1000", 4 [pid 5157] <... mmap resumed>) = 0x20000000 [pid 4998] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5164] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5163] <... write resumed>) = 4 [pid 5157] ioctl(4, FS_IOC_GETVERSION [pid 4998] <... openat resumed>) = 3 [pid 5164] <... openat resumed>) = 3 [pid 5163] close(3 [pid 5157] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 4998] ioctl(3, LOOP_CLR_FD [pid 5163] <... close resumed>) = 0 [pid 5164] write(3, "1000", 4 [pid 5163] symlink("/dev/binderfs", "./binderfs" [pid 5157] exit_group(0 [pid 4998] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5164] <... write resumed>) = 4 [pid 5163] <... symlink resumed>) = 0 [pid 5157] <... exit_group resumed>) = ? [pid 4998] close(3 [pid 5163] memfd_create("syzkaller", 0) = 3 [ 87.904219][ T5156] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5163] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7faaa11e5000 [pid 5164] close(3 [pid 5157] +++ exited with 0 +++ [pid 4998] <... close resumed>) = 0 [pid 4995] <... umount2 resumed>) = 0 [pid 5164] <... close resumed>) = 0 [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5157, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=10 /* 0.10 s */} --- [pid 4998] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4995] umount2("./12/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5164] symlink("/dev/binderfs", "./binderfs" [pid 4999] restart_syscall(<... resuming interrupted clone ...> [pid 5164] <... symlink resumed>) = 0 [pid 4999] <... restart_syscall resumed>) = 0 [pid 4995] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5165 attached [pid 5164] memfd_create("syzkaller", 0 [pid 4998] <... clone resumed>, child_tidptr=0x5555570865d0) = 5165 [pid 4995] lstat("./12/file0", [pid 5165] chdir("./13" [pid 5164] <... memfd_create resumed>) = 3 [pid 5165] <... chdir resumed>) = 0 [pid 5164] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 4999] umount2("./13", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4995] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5165] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5164] <... mmap resumed>) = 0x7faaa11e5000 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4995] umount2("./12/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5165] <... prctl resumed>) = 0 [pid 4999] openat(AT_FDCWD, "./13", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 4999] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] getdents64(3, 0x555557087620 /* 4 entries */, 32768) = 112 [pid 4999] umount2("./13/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4995] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5165] setpgid(0, 0 [pid 4999] lstat("./13/binderfs", [pid 4995] openat(AT_FDCWD, "./12/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5165] <... setpgid resumed>) = 0 [pid 4999] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5165] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4999] unlink("./13/binderfs" [pid 4995] <... openat resumed>) = 4 [pid 5165] <... openat resumed>) = 3 [pid 4999] <... unlink resumed>) = 0 [pid 4995] fstat(4, [pid 5165] write(3, "1000", 4 [pid 4999] umount2("./13/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5165] <... write resumed>) = 4 [pid 4995] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5165] close(3) = 0 [pid 4995] getdents64(4, [pid 5165] symlink("/dev/binderfs", "./binderfs" [pid 4995] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 5165] <... symlink resumed>) = 0 [pid 4995] getdents64(4, [pid 5165] memfd_create("syzkaller", 0 [pid 4995] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 5165] <... memfd_create resumed>) = 3 [pid 4995] close(4 [pid 5165] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 4995] <... close resumed>) = 0 [pid 5165] <... mmap resumed>) = 0x7faaa11e5000 [pid 4995] rmdir("./12/file0") = 0 [ 87.998587][ T5156] REISERFS (device loop2): checking transaction log (loop2) [pid 4995] getdents64(3, 0x555557087620 /* 0 entries */, 32768) = 0 [pid 4995] close(3) = 0 [pid 4995] rmdir("./12") = 0 [pid 4995] mkdir("./13", 0777) = 0 [pid 4995] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 4995] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 4995] close(3) = 0 [pid 4995] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570865d0) = 5166 [pid 5163] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 4999] <... umount2 resumed>) = 0 ./strace-static-x86_64: Process 5166 attached [pid 4999] umount2("./13/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5166] chdir("./13" [pid 4999] lstat("./13/file0", [pid 5166] <... chdir resumed>) = 0 [pid 5164] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5156] <... mount resumed>) = 0 [pid 5166] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4999] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5166] <... prctl resumed>) = 0 [ 88.057385][ T5156] REISERFS (device loop2): Using tea hash to sort names [ 88.065885][ T5156] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 5156] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 4999] umount2("./13/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5166] setpgid(0, 0 [pid 5156] <... openat resumed>) = 3 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5166] <... setpgid resumed>) = 0 [pid 5156] chdir("./file0" [pid 4999] openat(AT_FDCWD, "./13/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5166] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5156] <... chdir resumed>) = 0 [pid 4999] <... openat resumed>) = 4 [pid 5166] <... openat resumed>) = 3 [pid 5156] ioctl(4, LOOP_CLR_FD [pid 4999] fstat(4, [pid 5166] write(3, "1000", 4 [pid 5156] <... ioctl resumed>) = 0 [pid 4999] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5166] <... write resumed>) = 4 [pid 5156] close(4 [pid 4999] getdents64(4, [pid 5166] close(3 [pid 5156] <... close resumed>) = 0 [pid 4999] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 5166] <... close resumed>) = 0 [pid 5156] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4999] getdents64(4, [pid 5166] symlink("/dev/binderfs", "./binderfs" [pid 5156] <... openat resumed>) = 4 [pid 4999] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 5166] <... symlink resumed>) = 0 [pid 5165] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5156] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 4999] close(4 [pid 5166] memfd_create("syzkaller", 0 [pid 5156] <... mmap resumed>) = 0x20000000 [pid 4999] <... close resumed>) = 0 [pid 5166] <... memfd_create resumed>) = 3 [pid 4999] rmdir("./13/file0" [pid 5166] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5156] ioctl(4, FS_IOC_GETVERSION [pid 5166] <... mmap resumed>) = 0x7faaa11e5000 [pid 4999] <... rmdir resumed>) = 0 [pid 5156] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5156] exit_group(0 [pid 4999] getdents64(3, [pid 5156] <... exit_group resumed>) = ? [pid 4999] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 5156] +++ exited with 0 +++ [pid 4999] close(3) = 0 [pid 4997] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5156, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 4999] rmdir("./13") = 0 [pid 4999] mkdir("./14", 0777) = 0 [pid 4997] umount2("./12", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4997] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] <... openat resumed>) = 3 [pid 4997] openat(AT_FDCWD, "./12", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4999] ioctl(3, LOOP_CLR_FD [pid 4997] <... openat resumed>) = 3 [pid 4999] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4997] fstat(3, [pid 4999] close(3 [pid 4997] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] <... close resumed>) = 0 [pid 4997] getdents64(3, [pid 4999] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4997] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 4997] umount2("./12/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4997] lstat("./12/binderfs", [pid 4999] <... clone resumed>, child_tidptr=0x5555570865d0) = 5167 [pid 4997] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4997] unlink("./12/binderfs") = 0 [pid 4997] umount2("./12/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5167 attached [pid 5167] chdir("./14") = 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 [pid 5164] <... write resumed>) = 4194304 [pid 5167] <... openat resumed>) = 3 [pid 5167] write(3, "1000", 4) = 4 [pid 5167] close(3) = 0 [pid 5167] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5167] memfd_create("syzkaller", 0) = 3 [pid 5167] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7faaa11e5000 [pid 5164] munmap(0x7faaa11e5000, 4194304 [pid 5166] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5164] <... munmap resumed>) = 0 [pid 5164] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5163] <... write resumed>) = 4194304 [pid 5164] <... openat resumed>) = 4 [pid 5164] ioctl(4, LOOP_SET_FD, 3 [pid 5163] munmap(0x7faaa11e5000, 4194304 [pid 5164] <... ioctl resumed>) = 0 [pid 5163] <... munmap resumed>) = 0 [pid 5164] close(3) = 0 [pid 5163] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5164] mkdir("./file0", 0777 [pid 5163] <... openat resumed>) = 4 [pid 5165] <... write resumed>) = 4194304 [pid 5164] <... mkdir resumed>) = 0 [ 88.296387][ T5164] loop1: detected capacity change from 0 to 8192 [pid 5163] ioctl(4, LOOP_SET_FD, 3 [pid 5164] mount("/dev/loop1", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5165] munmap(0x7faaa11e5000, 4194304) = 0 [pid 5165] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 5165] ioctl(4, LOOP_SET_FD, 3 [pid 5167] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 4997] <... umount2 resumed>) = 0 [pid 5163] <... ioctl resumed>) = 0 [pid 5163] close(3 [pid 4997] umount2("./12/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5163] <... close resumed>) = 0 [pid 5163] mkdir("./file0", 0777 [pid 4997] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5163] <... mkdir resumed>) = 0 [pid 4997] lstat("./12/file0", [ 88.340555][ T5163] loop5: detected capacity change from 0 to 8192 [ 88.357110][ T5164] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 88.366120][ T5165] loop3: detected capacity change from 0 to 8192 [pid 5163] mount("/dev/loop5", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5165] <... ioctl resumed>) = 0 [pid 5165] close(3) = 0 [pid 5165] mkdir("./file0", 0777) = 0 [pid 5165] mount("/dev/loop3", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 4997] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4997] umount2("./12/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4997] openat(AT_FDCWD, "./12/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 4997] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4997] getdents64(4, 0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4997] getdents64(4, 0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4997] close(4) = 0 [pid 5166] <... write resumed>) = 4194304 [pid 5166] munmap(0x7faaa11e5000, 4194304) = 0 [pid 5166] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4997] rmdir("./12/file0") = 0 [pid 4997] getdents64(3, 0x555557087620 /* 0 entries */, 32768) = 0 [pid 4997] close(3) = 0 [pid 4997] rmdir("./12") = 0 [pid 4997] mkdir("./13", 0777 [pid 5166] <... openat resumed>) = 4 [pid 4997] <... mkdir resumed>) = 0 [pid 4997] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 4997] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [ 88.392036][ T5164] REISERFS (device loop1): found reiserfs format "3.5" with non-standard journal [ 88.402506][ T5163] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 88.421020][ T5165] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 4997] close(3) = 0 [pid 4997] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5166] ioctl(4, LOOP_SET_FD, 3./strace-static-x86_64: Process 5171 attached [pid 5171] chdir("./13") = 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] memfd_create("syzkaller", 0 [pid 4997] <... clone resumed>, child_tidptr=0x5555570865d0) = 5171 [pid 5171] <... memfd_create resumed>) = 3 [ 88.444902][ T5163] REISERFS (device loop5): found reiserfs format "3.5" with non-standard journal [ 88.459675][ T5164] REISERFS (device loop1): using ordered data mode [ 88.461189][ T5166] loop0: detected capacity change from 0 to 8192 [ 88.474088][ T5164] reiserfs: using flush barriers [ 88.474611][ T5165] REISERFS (device loop3): found reiserfs format "3.5" with non-standard journal [pid 5171] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5166] <... ioctl resumed>) = 0 [pid 5171] <... mmap resumed>) = 0x7faaa11e5000 [pid 5166] close(3) = 0 [pid 5166] mkdir("./file0", 0777) = 0 [ 88.492123][ T5164] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 88.495535][ T5163] REISERFS (device loop5): using ordered data mode [ 88.520626][ T5164] REISERFS (device loop1): checking transaction log (loop1) [ 88.528849][ T5166] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5166] mount("/dev/loop0", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5164] <... mount resumed>) = 0 [pid 5167] <... write resumed>) = 4194304 [ 88.541787][ T5165] REISERFS (device loop3): using ordered data mode [ 88.542944][ T5164] REISERFS (device loop1): Using tea hash to sort names [ 88.555763][ T5164] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 88.559171][ T5166] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 88.565458][ T5163] reiserfs: using flush barriers [pid 5164] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5167] munmap(0x7faaa11e5000, 4194304 [pid 5164] chdir("./file0" [pid 5167] <... munmap resumed>) = 0 [pid 5167] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5164] <... chdir resumed>) = 0 [ 88.580923][ T5163] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 88.595871][ T5165] reiserfs: using flush barriers [ 88.597895][ T5163] REISERFS (device loop5): checking transaction log (loop5) [ 88.609814][ T5166] REISERFS (device loop0): using ordered data mode [ 88.612899][ T5166] reiserfs: using flush barriers [ 88.617872][ T5163] REISERFS (device loop5): Using tea hash to sort names [ 88.629599][ T5165] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5167] ioctl(4, LOOP_SET_FD, 3 [pid 5164] ioctl(4, LOOP_CLR_FD) = 0 [pid 5171] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5164] close(4 [pid 5167] <... ioctl resumed>) = 0 [pid 5163] <... mount resumed>) = 0 [pid 5164] <... close resumed>) = 0 [pid 5167] close(3 [pid 5164] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [ 88.631401][ T5167] loop4: detected capacity change from 0 to 8192 [ 88.646573][ T5163] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 88.661771][ T5166] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 88.662189][ T5165] REISERFS (device loop3): checking transaction log (loop3) [pid 5163] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5167] <... close resumed>) = 0 [pid 5167] mkdir("./file0", 0777 [pid 5164] <... openat resumed>) = 4 [pid 5163] <... openat resumed>) = 3 [pid 5167] <... mkdir resumed>) = 0 [pid 5165] <... mount resumed>) = 0 [pid 5164] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 5163] chdir("./file0" [pid 5167] mount("/dev/loop4", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5165] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5164] <... mmap resumed>) = 0x20000000 [pid 5163] <... chdir resumed>) = 0 [pid 5165] <... openat resumed>) = 3 [pid 5164] ioctl(4, FS_IOC_GETVERSION [ 88.696354][ T5165] REISERFS (device loop3): Using tea hash to sort names [ 88.708816][ T5165] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 88.720234][ T5166] REISERFS (device loop0): checking transaction log (loop0) [ 88.732263][ T5166] REISERFS (device loop0): Using tea hash to sort names [pid 5163] ioctl(4, LOOP_CLR_FD [pid 5165] chdir("./file0" [pid 5164] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5166] <... mount resumed>) = 0 [pid 5165] <... chdir resumed>) = 0 [pid 5163] <... ioctl resumed>) = 0 [pid 5166] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5165] ioctl(4, LOOP_CLR_FD [pid 5164] exit_group(0 [pid 5163] close(4 [pid 5166] <... openat resumed>) = 3 [pid 5165] <... ioctl resumed>) = 0 [pid 5164] <... exit_group resumed>) = ? [pid 5163] <... close resumed>) = 0 [pid 5166] chdir("./file0" [pid 5165] close(4 [pid 5164] +++ exited with 0 +++ [pid 5171] <... write resumed>) = 4194304 [pid 5166] <... chdir resumed>) = 0 [pid 5165] <... close resumed>) = 0 [pid 5163] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4996] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5164, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 5171] munmap(0x7faaa11e5000, 4194304 [pid 5166] ioctl(4, LOOP_CLR_FD [pid 5165] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4996] restart_syscall(<... resuming interrupted clone ...> [pid 5171] <... munmap resumed>) = 0 [pid 5166] <... ioctl resumed>) = 0 [pid 5165] <... openat resumed>) = 4 [pid 5163] <... openat resumed>) = 4 [pid 4996] <... restart_syscall resumed>) = 0 [pid 5171] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5166] close(4 [pid 5165] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 5163] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 5171] <... openat resumed>) = 4 [ 88.740021][ T5166] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 88.752367][ T5167] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5171] ioctl(4, LOOP_SET_FD, 3 [pid 4996] umount2("./13", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5166] <... close resumed>) = 0 [pid 5165] <... mmap resumed>) = 0x20000000 [pid 5163] <... mmap resumed>) = 0x20000000 [pid 4996] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5166] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5165] ioctl(4, FS_IOC_GETVERSION [pid 5163] ioctl(4, FS_IOC_GETVERSION [pid 4996] openat(AT_FDCWD, "./13", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5166] <... openat resumed>) = 4 [pid 5165] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5163] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 4996] <... openat resumed>) = 3 [pid 5166] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 5165] exit_group(0 [pid 5163] exit_group(0 [pid 4996] fstat(3, [pid 5166] <... mmap resumed>) = 0x20000000 [pid 5165] <... exit_group resumed>) = ? [pid 5163] <... exit_group resumed>) = ? [pid 4996] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4996] getdents64(3, [pid 5163] +++ exited with 0 +++ [pid 4996] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5163, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=17 /* 0.17 s */} --- [pid 4996] umount2("./13/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5166] ioctl(4, FS_IOC_GETVERSION [pid 5165] +++ exited with 0 +++ [pid 4996] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5166] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5165, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- [pid 4996] lstat("./13/binderfs", [pid 5166] exit_group(0 [pid 4998] restart_syscall(<... resuming interrupted clone ...> [pid 4996] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5166] <... exit_group resumed>) = ? [pid 4998] <... restart_syscall resumed>) = 0 [pid 4996] unlink("./13/binderfs") = 0 [pid 5166] +++ exited with 0 +++ [pid 5000] umount2("./12", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4996] umount2("./13/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] umount2("./13", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] openat(AT_FDCWD, "./12", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4995] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5166, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=15 /* 0.15 s */} --- [pid 5000] <... openat resumed>) = 3 [pid 4998] openat(AT_FDCWD, "./13", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4995] restart_syscall(<... resuming interrupted clone ...> [pid 5000] fstat(3, [pid 4998] <... openat resumed>) = 3 [pid 4995] <... restart_syscall resumed>) = 0 [pid 5000] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] fstat(3, [pid 5000] getdents64(3, [pid 4998] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 4998] getdents64(3, [pid 4995] umount2("./13", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] umount2("./12/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 4995] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] umount2("./13/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [ 88.787985][ T5167] REISERFS (device loop4): found reiserfs format "3.5" with non-standard journal [ 88.792420][ T5171] loop2: detected capacity change from 0 to 8192 [pid 4995] openat(AT_FDCWD, "./13", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5000] lstat("./12/binderfs", [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4995] <... openat resumed>) = 3 [pid 5000] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] unlink("./12/binderfs" [pid 4998] lstat("./13/binderfs", [pid 4995] fstat(3, [pid 5171] <... ioctl resumed>) = 0 [pid 5000] <... unlink resumed>) = 0 [pid 4998] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4995] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5171] close(3 [pid 5000] umount2("./12/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] unlink("./13/binderfs" [pid 5171] <... close resumed>) = 0 [pid 4995] getdents64(3, [pid 5171] mkdir("./file0", 0777 [pid 4998] <... unlink resumed>) = 0 [pid 4995] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 5171] <... mkdir resumed>) = 0 [pid 4998] umount2("./13/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4995] umount2("./13/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5171] mount("/dev/loop2", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 4995] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4995] lstat("./13/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4995] unlink("./13/binderfs") = 0 [ 88.835017][ T5167] REISERFS (device loop4): using ordered data mode [ 88.841785][ T5167] reiserfs: using flush barriers [ 88.850168][ T5167] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 88.871600][ T5167] REISERFS (device loop4): checking transaction log (loop4) [ 88.899265][ T5171] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 88.917560][ T5167] REISERFS (device loop4): Using tea hash to sort names [ 88.938121][ T5167] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [pid 4995] umount2("./13/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4996] <... umount2 resumed>) = 0 [pid 4996] umount2("./13/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4996] lstat("./13/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4996] umount2("./13/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4995] <... umount2 resumed>) = 0 [pid 4996] openat(AT_FDCWD, "./13/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4995] umount2("./13/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4996] <... openat resumed>) = 4 [pid 4995] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4996] fstat(4, [pid 4995] lstat("./13/file0", [pid 4996] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4995] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4996] getdents64(4, [pid 4995] umount2("./13/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4996] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4995] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4996] getdents64(4, [pid 4995] openat(AT_FDCWD, "./13/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 4995] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4995] getdents64(4, 0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4995] getdents64(4, 0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4995] close(4) = 0 [pid 4995] rmdir("./13/file0" [pid 4996] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4995] <... rmdir resumed>) = 0 [pid 4996] close(4 [pid 4995] getdents64(3, 0x555557087620 /* 0 entries */, 32768) = 0 [pid 4995] close(3) = 0 [pid 4995] rmdir("./13") = 0 [pid 4995] mkdir("./14", 0777) = 0 [pid 4995] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 4995] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5167] <... mount resumed>) = 0 [pid 4995] close(3 [pid 5000] <... umount2 resumed>) = 0 [pid 4996] <... close resumed>) = 0 [pid 4995] <... close resumed>) = 0 [ 88.984276][ T5171] REISERFS (device loop2): found reiserfs format "3.5" with non-standard journal [ 89.009090][ T5171] REISERFS (device loop2): using ordered data mode [pid 5167] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5000] umount2("./12/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4995] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5167] <... openat resumed>) = 3 [pid 5167] chdir("./file0" [pid 4995] <... clone resumed>, child_tidptr=0x5555570865d0) = 5175 [pid 5167] <... chdir resumed>) = 0 [pid 5167] ioctl(4, LOOP_CLR_FD) = 0 [pid 4996] rmdir("./13/file0" [pid 5167] close(4 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5167] <... close resumed>) = 0 [pid 5000] lstat("./12/file0", [pid 4996] <... rmdir resumed>) = 0 [pid 5167] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5000] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4996] getdents64(3, [pid 5167] <... openat resumed>) = 4 [pid 5000] umount2("./12/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4996] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 5167] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4996] close(3./strace-static-x86_64: Process 5175 attached [pid 5167] <... mmap resumed>) = 0x20000000 [pid 5000] openat(AT_FDCWD, "./12/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4996] <... close resumed>) = 0 [pid 5175] chdir("./14" [pid 5167] ioctl(4, FS_IOC_GETVERSION [pid 5000] <... openat resumed>) = 4 [pid 5175] <... chdir resumed>) = 0 [pid 5167] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5175] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5167] exit_group(0 [pid 5175] <... prctl resumed>) = 0 [pid 5167] <... exit_group resumed>) = ? [pid 5175] setpgid(0, 0 [pid 5167] +++ exited with 0 +++ [pid 5175] <... setpgid resumed>) = 0 [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5167, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- [pid 5175] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5175] write(3, "1000", 4 [pid 4999] umount2("./14", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5175] <... write resumed>) = 4 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5175] close(3 [pid 4999] openat(AT_FDCWD, "./14", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5175] <... close resumed>) = 0 [pid 4999] <... openat resumed>) = 3 [pid 5175] symlink("/dev/binderfs", "./binderfs" [pid 4999] fstat(3, [pid 5175] <... symlink resumed>) = 0 [pid 5000] fstat(4, [pid 4999] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4996] rmdir("./13" [pid 5175] memfd_create("syzkaller", 0 [pid 4999] getdents64(3, [pid 5175] <... memfd_create resumed>) = 3 [pid 4999] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 5175] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 4999] umount2("./14/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5175] <... mmap resumed>) = 0x7faaa11e5000 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 89.043802][ T5171] reiserfs: using flush barriers [ 89.062254][ T5171] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5000] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] lstat("./14/binderfs", [pid 4996] <... rmdir resumed>) = 0 [pid 4999] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] getdents64(4, [pid 4999] unlink("./14/binderfs" [pid 4996] mkdir("./14", 0777 [pid 5000] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4999] <... unlink resumed>) = 0 [pid 4998] <... umount2 resumed>) = 0 [pid 4999] umount2("./14/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] getdents64(4, [pid 4998] umount2("./13/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4996] <... mkdir resumed>) = 0 [pid 5000] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4996] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5175] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5000] close(4 [pid 4998] lstat("./13/file0", [pid 4996] <... openat resumed>) = 3 [pid 5000] <... close resumed>) = 0 [pid 5171] <... mount resumed>) = 0 [pid 5000] rmdir("./12/file0" [pid 4998] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4996] ioctl(3, LOOP_CLR_FD [pid 5000] <... rmdir resumed>) = 0 [pid 4998] umount2("./13/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5171] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5000] getdents64(3, [pid 4996] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 4996] close(3 [pid 5000] close(3 [pid 4998] openat(AT_FDCWD, "./13/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5000] <... close resumed>) = 0 [pid 4996] <... close resumed>) = 0 [pid 5171] <... openat resumed>) = 3 [pid 5000] rmdir("./12" [pid 4998] <... openat resumed>) = 4 [pid 4996] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5171] chdir("./file0" [pid 5000] <... rmdir resumed>) = 0 [pid 4998] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5171] <... chdir resumed>) = 0 [pid 5000] mkdir("./13", 0777 [pid 4998] getdents64(4, [pid 4996] <... clone resumed>, child_tidptr=0x5555570865d0) = 5176 [pid 5171] ioctl(4, LOOP_CLR_FD [pid 5000] <... mkdir resumed>) = 0 [pid 4998] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 5171] <... ioctl resumed>) = 0 [pid 5000] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4998] getdents64(4, [pid 5171] close(4 [pid 5000] <... openat resumed>) = 3 [pid 4998] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 5176 attached [pid 5171] <... close resumed>) = 0 [pid 5000] ioctl(3, LOOP_CLR_FD [pid 4998] close(4 [pid 5176] chdir("./14" [pid 5171] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5000] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4998] <... close resumed>) = 0 [pid 5176] <... chdir resumed>) = 0 [pid 5171] <... openat resumed>) = 4 [pid 5000] close(3 [pid 4998] rmdir("./13/file0" [pid 5176] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5171] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 5000] <... close resumed>) = 0 [pid 4998] <... rmdir resumed>) = 0 [pid 5000] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4998] getdents64(3, [pid 5171] <... mmap resumed>) = 0x20000000 [pid 5176] <... prctl resumed>) = 0 [pid 5171] ioctl(4, FS_IOC_GETVERSION [pid 4998] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 5176] setpgid(0, 0 [pid 5171] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5000] <... clone resumed>, child_tidptr=0x5555570865d0) = 5177 [pid 4998] close(3 [pid 5176] <... setpgid resumed>) = 0 [pid 5171] exit_group(0 [pid 4998] <... close resumed>) = 0 [pid 5176] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5171] <... exit_group resumed>) = ? [pid 4998] rmdir("./13" [pid 5171] +++ exited with 0 +++ [pid 5176] <... openat resumed>) = 3 [pid 4998] <... rmdir resumed>) = 0 [pid 5176] write(3, "1000", 4 [pid 4998] mkdir("./14", 0777 [pid 4997] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5171, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=15 /* 0.15 s */} --- [pid 5176] <... write resumed>) = 4 [pid 5176] close(3 [pid 4998] <... mkdir resumed>) = 0 [pid 4997] restart_syscall(<... resuming interrupted clone ...> [pid 5176] <... close resumed>) = 0 [pid 4998] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4997] <... restart_syscall resumed>) = 0 [ 89.089524][ T5171] REISERFS (device loop2): checking transaction log (loop2) [ 89.100015][ T5171] REISERFS (device loop2): Using tea hash to sort names [ 89.117109][ T5171] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 5176] symlink("/dev/binderfs", "./binderfs" [pid 4998] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5177 attached [pid 5176] <... symlink resumed>) = 0 [pid 5175] <... write resumed>) = 4194304 [pid 4998] ioctl(3, LOOP_CLR_FD [pid 5177] chdir("./13" [pid 5176] memfd_create("syzkaller", 0 [pid 5175] munmap(0x7faaa11e5000, 4194304 [pid 4998] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4997] umount2("./13", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5177] <... chdir resumed>) = 0 [pid 5176] <... memfd_create resumed>) = 3 [pid 5175] <... munmap resumed>) = 0 [pid 4998] close(3 [pid 4997] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5177] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5176] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5175] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4998] <... close resumed>) = 0 [pid 4997] openat(AT_FDCWD, "./13", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5177] <... prctl resumed>) = 0 [pid 5176] <... mmap resumed>) = 0x7faaa11e5000 [pid 5175] <... openat resumed>) = 4 [pid 4998] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4997] <... openat resumed>) = 3 [pid 5177] setpgid(0, 0 [pid 5175] ioctl(4, LOOP_SET_FD, 3 [pid 4997] fstat(3, [pid 5177] <... setpgid resumed>) = 0 [pid 5175] <... ioctl resumed>) = 0 [pid 4998] <... clone resumed>, child_tidptr=0x5555570865d0) = 5178 [pid 4997] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5177] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4997] getdents64(3, ./strace-static-x86_64: Process 5178 attached [pid 5177] <... openat resumed>) = 3 [pid 4997] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 5177] write(3, "1000", 4 [pid 4997] umount2("./13/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5177] <... write resumed>) = 4 [pid 4997] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5177] close(3 [pid 4997] lstat("./13/binderfs", [pid 5177] <... close resumed>) = 0 [pid 4997] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5177] symlink("/dev/binderfs", "./binderfs" [pid 4997] unlink("./13/binderfs" [pid 5177] <... symlink resumed>) = 0 [pid 4997] <... unlink resumed>) = 0 [pid 5177] memfd_create("syzkaller", 0 [pid 4997] umount2("./13/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5177] <... memfd_create resumed>) = 3 [pid 5177] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7faaa11e5000 [pid 5178] chdir("./14" [pid 4999] <... umount2 resumed>) = 0 [pid 5178] <... chdir resumed>) = 0 [pid 4999] umount2("./14/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5178] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] lstat("./14/file0", [pid 5178] setpgid(0, 0 [pid 5175] close(3) = 0 [pid 5175] mkdir("./file0", 0777 [pid 5178] <... setpgid resumed>) = 0 [pid 5175] <... mkdir resumed>) = 0 [pid 4999] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5175] mount("/dev/loop0", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5178] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4999] umount2("./14/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5178] <... openat resumed>) = 3 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5178] write(3, "1000", 4 [pid 4999] openat(AT_FDCWD, "./14/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5178] <... write resumed>) = 4 [pid 5178] close(3 [pid 4999] <... openat resumed>) = 4 [pid 5178] <... close resumed>) = 0 [pid 4999] fstat(4, [pid 5178] symlink("/dev/binderfs", "./binderfs" [pid 4999] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [ 89.216856][ T5175] loop0: detected capacity change from 0 to 8192 [pid 5178] <... symlink resumed>) = 0 [pid 4999] getdents64(4, [pid 5178] memfd_create("syzkaller", 0 [pid 4999] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 5178] <... memfd_create resumed>) = 3 [pid 4999] getdents64(4, [pid 5178] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 4999] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 5178] <... mmap resumed>) = 0x7faaa11e5000 [pid 4999] close(4) = 0 [pid 4999] rmdir("./14/file0") = 0 [pid 4999] getdents64(3, 0x555557087620 /* 0 entries */, 32768) = 0 [pid 4999] close(3) = 0 [pid 4999] rmdir("./14") = 0 [pid 4999] mkdir("./15", 0777) = 0 [pid 4999] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 4999] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 4999] close(3) = 0 [pid 4999] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5177] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 4999] <... clone resumed>, child_tidptr=0x5555570865d0) = 5180 [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./strace-static-x86_64: Process 5180 attached [ 89.270712][ T5175] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5180] chdir("./15" [pid 4997] <... umount2 resumed>) = 0 [pid 5180] <... chdir resumed>) = 0 [pid 4997] umount2("./13/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5180] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4997] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5180] <... prctl resumed>) = 0 [pid 4997] lstat("./13/file0", [pid 5180] setpgid(0, 0) = 0 [pid 4997] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5180] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5180] write(3, "1000", 4) = 4 [pid 5180] close(3) = 0 [pid 5180] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4997] umount2("./13/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5180] memfd_create("syzkaller", 0 [pid 4997] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5180] <... memfd_create resumed>) = 3 [pid 5180] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 4997] openat(AT_FDCWD, "./13/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5180] <... mmap resumed>) = 0x7faaa11e5000 [pid 4997] <... openat resumed>) = 4 [pid 4997] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4997] getdents64(4, 0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4997] getdents64(4, 0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4997] close(4) = 0 [pid 4997] rmdir("./13/file0") = 0 [pid 4997] getdents64(3, 0x555557087620 /* 0 entries */, 32768) = 0 [pid 4997] close(3) = 0 [pid 4997] rmdir("./13") = 0 [pid 4997] mkdir("./14", 0777) = 0 [pid 4997] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [ 89.339723][ T5175] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 89.375120][ T5175] REISERFS (device loop0): using ordered data mode [pid 5178] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 4997] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 4997] close(3) = 0 [pid 4997] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570865d0) = 5181 ./strace-static-x86_64: Process 5181 attached [pid 5181] chdir("./14") = 0 [pid 5181] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5181] setpgid(0, 0) = 0 [pid 5181] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5181] write(3, "1000", 4) = 4 [pid 5181] close(3) = 0 [pid 5181] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5181] memfd_create("syzkaller", 0) = 3 [pid 5181] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7faaa11e5000 [ 89.405005][ T5175] reiserfs: using flush barriers [ 89.418908][ T5175] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 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 [pid 5176] <... write resumed>) = 4194304 [pid 5176] munmap(0x7faaa11e5000, 4194304) = 0 [pid 5176] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [ 89.491183][ T5175] REISERFS (device loop0): checking transaction log (loop0) [ 89.528917][ T5175] REISERFS (device loop0): Using tea hash to sort names [pid 5176] ioctl(4, LOOP_SET_FD, 3 [pid 5178] <... write resumed>) = 4194304 [pid 5178] munmap(0x7faaa11e5000, 4194304 [pid 5177] <... write resumed>) = 4194304 [pid 5178] <... munmap resumed>) = 0 [pid 5177] munmap(0x7faaa11e5000, 4194304 [pid 5181] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5178] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5177] <... munmap resumed>) = 0 [pid 5176] <... ioctl resumed>) = 0 [pid 5175] <... mount resumed>) = 0 [pid 5177] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 5177] ioctl(4, LOOP_SET_FD, 3 [pid 5178] <... openat resumed>) = 4 [pid 5176] close(3 [pid 5175] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5178] ioctl(4, LOOP_SET_FD, 3 [pid 5176] <... close resumed>) = 0 [pid 5175] <... openat resumed>) = 3 [pid 5177] <... ioctl resumed>) = 0 [pid 5177] close(3) = 0 [pid 5177] mkdir("./file0", 0777 [pid 5175] chdir("./file0" [pid 5176] mkdir("./file0", 0777 [pid 5175] <... chdir resumed>) = 0 [pid 5176] <... mkdir resumed>) = 0 [pid 5175] ioctl(4, LOOP_CLR_FD [pid 5178] <... ioctl resumed>) = 0 [pid 5176] mount("/dev/loop1", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5175] <... ioctl resumed>) = 0 [pid 5178] close(3 [pid 5175] close(4 [pid 5178] <... close resumed>) = 0 [pid 5175] <... close resumed>) = 0 [ 89.539191][ T5176] loop1: detected capacity change from 0 to 8192 [ 89.551850][ T5175] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 89.572591][ T5177] loop5: detected capacity change from 0 to 8192 [ 89.582745][ T5178] loop3: detected capacity change from 0 to 8192 [pid 5175] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5177] <... mkdir resumed>) = 0 [pid 5177] mount("/dev/loop5", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5178] mkdir("./file0", 0777 [pid 5175] <... openat resumed>) = 4 [pid 5175] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 5178] <... mkdir resumed>) = 0 [pid 5178] mount("/dev/loop3", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5175] <... mmap resumed>) = 0x20000000 [pid 5175] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5175] exit_group(0) = ? [pid 5175] +++ exited with 0 +++ [pid 4995] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5175, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=12 /* 0.12 s */} --- [ 89.605647][ T5176] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 89.620240][ T5177] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 89.637559][ T5176] REISERFS (device loop1): found reiserfs format "3.5" with non-standard journal [pid 4995] umount2("./14", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5180] <... write resumed>) = 4194304 [pid 5180] munmap(0x7faaa11e5000, 4194304) = 0 [pid 5180] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5180] ioctl(4, LOOP_SET_FD, 3 [pid 4995] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5180] <... ioctl resumed>) = 0 [pid 5180] close(3) = 0 [pid 5180] mkdir("./file0", 0777 [pid 4995] openat(AT_FDCWD, "./14", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 4995] fstat(3, [pid 5180] <... mkdir resumed>) = 0 [ 89.664918][ T5177] REISERFS (device loop5): found reiserfs format "3.5" with non-standard journal [ 89.674921][ T5178] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 89.688683][ T5176] REISERFS (device loop1): using ordered data mode [ 89.689049][ T5180] loop4: detected capacity change from 0 to 8192 [ 89.695518][ T5177] REISERFS (device loop5): using ordered data mode [pid 5180] mount("/dev/loop4", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5181] <... write resumed>) = 4194304 [pid 4995] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5181] munmap(0x7faaa11e5000, 4194304 [ 89.711757][ T5178] REISERFS (device loop3): found reiserfs format "3.5" with non-standard journal [ 89.719133][ T5176] reiserfs: using flush barriers [ 89.725065][ T5178] REISERFS (device loop3): using ordered data mode [ 89.731403][ T5177] reiserfs: using flush barriers [ 89.732916][ T5178] reiserfs: using flush barriers [ 89.739928][ T5176] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 4995] getdents64(3, [pid 5181] <... munmap resumed>) = 0 [pid 4995] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [ 89.746068][ T5178] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 89.758737][ T5180] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 89.775162][ T5178] REISERFS (device loop3): checking transaction log (loop3) [ 89.793404][ T5176] REISERFS (device loop1): checking transaction log (loop1) [ 89.796285][ T5178] REISERFS (device loop3): Using tea hash to sort names [pid 5181] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4995] umount2("./14/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5181] <... openat resumed>) = 4 [pid 4995] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5178] <... mount resumed>) = 0 [pid 4995] lstat("./14/binderfs", [pid 5178] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 4995] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5178] chdir("./file0" [pid 4995] unlink("./14/binderfs") = 0 [pid 5181] ioctl(4, LOOP_SET_FD, 3 [pid 5178] <... chdir resumed>) = 0 [pid 4995] umount2("./14/file0", MNT_DETACH|UMOUNT_NOFOLLOW [ 89.803123][ T5177] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 89.809981][ T5178] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 89.835293][ T5180] REISERFS (device loop4): found reiserfs format "3.5" with non-standard journal [ 89.845494][ T5180] REISERFS (device loop4): using ordered data mode [ 89.853416][ T5180] reiserfs: using flush barriers [ 89.855195][ T5176] REISERFS (device loop1): Using tea hash to sort names [pid 5178] ioctl(4, LOOP_CLR_FD) = 0 [pid 5178] close(4) = 0 [pid 5178] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5178] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0) = 0x20000000 [pid 5178] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5178] exit_group(0) = ? [pid 5178] +++ exited with 0 +++ [ 89.860533][ T5177] REISERFS (device loop5): checking transaction log (loop5) [ 89.868167][ T5181] loop2: detected capacity change from 0 to 8192 [ 89.872971][ T5180] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 89.905946][ T5176] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [pid 5181] <... ioctl resumed>) = 0 [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5178, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} --- [pid 5181] close(3 [pid 5176] <... mount resumed>) = 0 [pid 4998] umount2("./14", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5181] <... close resumed>) = 0 [pid 5176] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 89.911758][ T5177] REISERFS (device loop5): Using tea hash to sort names [ 89.935547][ T5180] REISERFS (device loop4): checking transaction log (loop4) [ 89.943700][ T5177] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 89.952777][ T5180] REISERFS (device loop4): Using tea hash to sort names [pid 5181] mkdir("./file0", 0777 [pid 5176] <... openat resumed>) = 3 [pid 4998] openat(AT_FDCWD, "./14", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5181] <... mkdir resumed>) = 0 [pid 5176] chdir("./file0" [pid 4998] <... openat resumed>) = 3 [pid 5181] mount("/dev/loop2", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5176] <... chdir resumed>) = 0 [pid 4998] fstat(3, [pid 5176] ioctl(4, LOOP_CLR_FD [pid 4998] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5176] <... ioctl resumed>) = 0 [pid 4998] getdents64(3, [pid 5176] close(4 [pid 4998] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 5176] <... close resumed>) = 0 [pid 4998] umount2("./14/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5176] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5180] <... mount resumed>) = 0 [pid 5177] <... mount resumed>) = 0 [pid 5176] <... openat resumed>) = 4 [pid 4998] lstat("./14/binderfs", [pid 4995] <... umount2 resumed>) = 0 [pid 5180] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5177] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5176] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 5180] <... openat resumed>) = 3 [pid 4998] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4995] umount2("./14/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5177] <... openat resumed>) = 3 [pid 5180] chdir("./file0" [pid 5177] chdir("./file0" [pid 5176] <... mmap resumed>) = 0x20000000 [pid 4998] unlink("./14/binderfs" [pid 4995] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5180] <... chdir resumed>) = 0 [pid 5177] <... chdir resumed>) = 0 [pid 5176] ioctl(4, FS_IOC_GETVERSION [pid 4998] <... unlink resumed>) = 0 [pid 4995] lstat("./14/file0", [pid 5180] ioctl(4, LOOP_CLR_FD [pid 5177] ioctl(4, LOOP_CLR_FD [pid 5176] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 4998] umount2("./14/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4995] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5180] <... ioctl resumed>) = 0 [pid 5177] <... ioctl resumed>) = 0 [pid 5176] exit_group(0 [pid 4995] umount2("./14/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5180] close(4 [pid 5177] close(4 [pid 5176] <... exit_group resumed>) = ? [pid 4995] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5180] <... close resumed>) = 0 [pid 5177] <... close resumed>) = 0 [pid 5176] +++ exited with 0 +++ [pid 4995] openat(AT_FDCWD, "./14/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5180] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5177] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4996] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5176, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=16 /* 0.16 s */} --- [pid 4995] <... openat resumed>) = 4 [pid 5180] <... openat resumed>) = 4 [pid 5177] <... openat resumed>) = 4 [pid 4995] fstat(4, [pid 5180] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 5177] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 4995] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5180] <... mmap resumed>) = 0x20000000 [pid 5177] <... mmap resumed>) = 0x20000000 [pid 4995] getdents64(4, [pid 5180] ioctl(4, FS_IOC_GETVERSION [pid 5177] ioctl(4, FS_IOC_GETVERSION [pid 4995] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 5180] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5177] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 4995] getdents64(4, [pid 5180] exit_group(0 [pid 5177] exit_group(0 [pid 4996] umount2("./14", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4995] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 5180] <... exit_group resumed>) = ? [pid 5177] <... exit_group resumed>) = ? [pid 4996] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4995] close(4 [pid 5180] +++ exited with 0 +++ [pid 5177] +++ exited with 0 +++ [pid 4996] openat(AT_FDCWD, "./14", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4995] <... close resumed>) = 0 [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5177, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5180, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=15 /* 0.15 s */} --- [pid 4996] <... openat resumed>) = 3 [pid 4995] rmdir("./14/file0" [pid 5000] restart_syscall(<... resuming interrupted clone ...> [pid 4996] fstat(3, [pid 4995] <... rmdir resumed>) = 0 [pid 5000] <... restart_syscall resumed>) = 0 [pid 4996] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4995] getdents64(3, [pid 4996] getdents64(3, [pid 4995] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 4996] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 4995] close(3 [pid 5000] umount2("./13", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4996] umount2("./14/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4995] <... close resumed>) = 0 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4996] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4995] rmdir("./14" [pid 5000] openat(AT_FDCWD, "./13", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4999] umount2("./15", MNT_DETACH|UMOUNT_NOFOLLOW [ 89.953321][ T5180] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 89.985674][ T5181] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 90.000864][ T5181] REISERFS (device loop2): found reiserfs format "3.5" with non-standard journal [pid 4996] lstat("./14/binderfs", [pid 4995] <... rmdir resumed>) = 0 [pid 5000] <... openat resumed>) = 3 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4996] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4995] mkdir("./15", 0777 [pid 5000] fstat(3, [pid 4999] openat(AT_FDCWD, "./15", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4996] unlink("./14/binderfs" [pid 4995] <... mkdir resumed>) = 0 [pid 5000] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] <... openat resumed>) = 3 [pid 4996] <... unlink resumed>) = 0 [pid 4995] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5000] getdents64(3, [pid 4999] fstat(3, [pid 4996] umount2("./14/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4995] <... openat resumed>) = 3 [pid 5000] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 4999] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4995] ioctl(3, LOOP_CLR_FD [pid 5000] umount2("./13/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] getdents64(3, [pid 4995] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 4995] close(3 [pid 5000] lstat("./13/binderfs", [pid 4999] umount2("./15/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4995] <... close resumed>) = 0 [pid 5000] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4995] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5000] unlink("./13/binderfs" [pid 4999] lstat("./15/binderfs", [pid 5000] <... unlink resumed>) = 0 [pid 4999] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4995] <... clone resumed>, child_tidptr=0x5555570865d0) = 5187 [pid 5000] umount2("./13/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] unlink("./15/binderfs") = 0 [pid 4999] umount2("./15/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5187 attached [pid 5187] chdir("./15") = 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] memfd_create("syzkaller", 0) = 3 [pid 5187] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7faaa11e5000 [ 90.066497][ T5181] REISERFS (device loop2): using ordered data mode [ 90.104988][ T5181] reiserfs: using flush barriers [ 90.125042][ T5181] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 4999] <... umount2 resumed>) = 0 [pid 4998] <... umount2 resumed>) = 0 [pid 4999] umount2("./15/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] <... umount2 resumed>) = 0 [pid 4998] umount2("./14/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4996] <... umount2 resumed>) = 0 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./14/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] umount2("./14/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./14/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 4998] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] umount2("./13/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] lstat("./15/file0", [pid 4998] getdents64(4, [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4998] getdents64(4, 0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4998] close(4) = 0 [pid 4998] rmdir("./14/file0" [pid 5000] lstat("./13/file0", [pid 4999] umount2("./15/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] <... rmdir resumed>) = 0 [pid 5000] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] getdents64(3, [pid 5000] umount2("./13/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] openat(AT_FDCWD, "./15/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4998] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [ 90.188964][ T5181] REISERFS (device loop2): checking transaction log (loop2) [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] <... openat resumed>) = 4 [pid 4998] close(3) = 0 [pid 4998] rmdir("./14") = 0 [pid 4998] mkdir("./15", 0777) = 0 [pid 4998] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5000] openat(AT_FDCWD, "./13/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4999] fstat(4, [pid 4998] ioctl(3, LOOP_CLR_FD [pid 5000] <... openat resumed>) = 4 [pid 4999] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4996] umount2("./14/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] fstat(4, [pid 4998] close(3) = 0 [pid 4996] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] getdents64(4, [pid 4998] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4996] lstat("./14/file0", [pid 5000] getdents64(4, [pid 4999] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4996] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4999] getdents64(4, [pid 4998] <... clone resumed>, child_tidptr=0x5555570865d0) = 5188 [pid 4996] umount2("./14/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] getdents64(4, [pid 4999] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4996] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4996] openat(AT_FDCWD, "./14/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4999] close(4 [pid 5000] close(4 [pid 4996] <... openat resumed>) = 4 [pid 4999] <... close resumed>) = 0 [pid 4996] fstat(4, [pid 5000] <... close resumed>) = 0 [pid 4999] rmdir("./15/file0" [pid 4996] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 ./strace-static-x86_64: Process 5188 attached [pid 5000] rmdir("./13/file0" [pid 4996] getdents64(4, [pid 5188] chdir("./15" [pid 5000] <... rmdir resumed>) = 0 [pid 4999] <... rmdir resumed>) = 0 [pid 4996] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 5188] <... chdir resumed>) = 0 [pid 5000] getdents64(3, [pid 4999] getdents64(3, [pid 4996] getdents64(4, [pid 5188] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5000] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 4999] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 4996] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 5188] <... prctl resumed>) = 0 [pid 5000] close(3 [pid 4999] close(3 [pid 4996] close(4 [pid 5188] setpgid(0, 0 [pid 5000] <... close resumed>) = 0 [pid 4996] <... close resumed>) = 0 [pid 4999] <... close resumed>) = 0 [pid 5188] <... setpgid resumed>) = 0 [pid 5000] rmdir("./13" [pid 4999] rmdir("./15" [pid 4996] rmdir("./14/file0" [pid 5188] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5187] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5000] <... rmdir resumed>) = 0 [pid 4999] <... rmdir resumed>) = 0 [pid 4996] <... rmdir resumed>) = 0 [pid 5188] <... openat resumed>) = 3 [pid 5000] mkdir("./14", 0777 [pid 4999] mkdir("./16", 0777 [pid 4996] getdents64(3, [pid 5188] write(3, "1000", 4 [pid 4996] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 5188] <... write resumed>) = 4 [pid 5000] <... mkdir resumed>) = 0 [pid 4996] close(3 [pid 5188] close(3 [pid 4996] <... close resumed>) = 0 [pid 5188] <... close resumed>) = 0 [pid 4996] rmdir("./14" [pid 5188] symlink("/dev/binderfs", "./binderfs" [pid 5000] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4999] <... mkdir resumed>) = 0 [ 90.229480][ T5181] REISERFS (device loop2): Using tea hash to sort names [pid 4996] <... rmdir resumed>) = 0 [pid 5188] <... symlink resumed>) = 0 [pid 5000] <... openat resumed>) = 3 [pid 4999] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4996] mkdir("./15", 0777 [pid 5188] memfd_create("syzkaller", 0 [pid 4996] <... mkdir resumed>) = 0 [pid 5188] <... memfd_create resumed>) = 3 [pid 4996] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5188] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 4996] <... openat resumed>) = 3 [pid 5188] <... mmap resumed>) = 0x7faaa11e5000 [pid 4996] ioctl(3, LOOP_CLR_FD [pid 5181] <... mount resumed>) = 0 [pid 5000] ioctl(3, LOOP_CLR_FD [pid 4999] <... openat resumed>) = 3 [pid 4996] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4996] close(3 [pid 5181] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5000] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4999] ioctl(3, LOOP_CLR_FD [pid 4996] <... close resumed>) = 0 [pid 4996] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570865d0) = 5189 ./strace-static-x86_64: Process 5189 attached [pid 5189] chdir("./15") = 0 [pid 5189] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5189] setpgid(0, 0) = 0 [pid 5181] <... openat resumed>) = 3 [pid 5000] close(3 [pid 4999] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5000] <... close resumed>) = 0 [pid 5189] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5181] chdir("./file0" [pid 4999] close(3 [pid 5189] <... openat resumed>) = 3 [pid 5181] <... chdir resumed>) = 0 [pid 5000] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4999] <... close resumed>) = 0 [pid 5189] write(3, "1000", 4) = 4 [pid 5181] ioctl(4, LOOP_CLR_FD [pid 5189] close(3) = 0 [pid 5181] <... ioctl resumed>) = 0 [pid 4999] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5189] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5181] close(4 [pid 5189] memfd_create("syzkaller", 0 [pid 5181] <... close resumed>) = 0 [pid 5000] <... clone resumed>, child_tidptr=0x5555570865d0) = 5190 [pid 5189] <... memfd_create resumed>) = 3 [ 90.272862][ T5181] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 5181] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4999] <... clone resumed>, child_tidptr=0x5555570865d0) = 5191 ./strace-static-x86_64: Process 5191 attached ./strace-static-x86_64: Process 5190 attached [pid 5189] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5187] <... write resumed>) = 4194304 [pid 5189] <... mmap resumed>) = 0x7faaa11e5000 [pid 5191] chdir("./16" [pid 5190] chdir("./14" [pid 5187] munmap(0x7faaa11e5000, 4194304 [pid 5181] <... openat resumed>) = 4 [pid 5191] <... chdir resumed>) = 0 [pid 5190] <... chdir resumed>) = 0 [pid 5187] <... munmap resumed>) = 0 [pid 5191] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5190] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5181] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 5191] <... prctl resumed>) = 0 [pid 5190] <... prctl resumed>) = 0 [pid 5191] setpgid(0, 0 [pid 5190] setpgid(0, 0 [pid 5181] <... mmap resumed>) = 0x20000000 [pid 5191] <... setpgid resumed>) = 0 [pid 5190] <... setpgid resumed>) = 0 [pid 5187] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5181] ioctl(4, FS_IOC_GETVERSION [pid 5191] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5190] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5191] <... openat resumed>) = 3 [pid 5191] write(3, "1000", 4 [pid 5190] <... openat resumed>) = 3 [pid 5187] <... openat resumed>) = 4 [pid 5181] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5191] <... write resumed>) = 4 [pid 5190] write(3, "1000", 4 [pid 5187] ioctl(4, LOOP_SET_FD, 3 [pid 5181] exit_group(0 [pid 5191] close(3 [pid 5190] <... write resumed>) = 4 [pid 5181] <... exit_group resumed>) = ? [pid 5187] <... ioctl resumed>) = 0 [pid 5191] <... close resumed>) = 0 [pid 5190] close(3 [pid 5181] +++ exited with 0 +++ [pid 5191] symlink("/dev/binderfs", "./binderfs" [pid 5190] <... close resumed>) = 0 [pid 4997] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5181, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- [pid 5191] <... symlink resumed>) = 0 [pid 5190] symlink("/dev/binderfs", "./binderfs" [pid 5187] close(3 [pid 5191] memfd_create("syzkaller", 0 [pid 5190] <... symlink resumed>) = 0 [pid 5188] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5187] <... close resumed>) = 0 [pid 4997] umount2("./14", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5191] <... memfd_create resumed>) = 3 [pid 4997] openat(AT_FDCWD, "./14", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5190] memfd_create("syzkaller", 0 [pid 4997] <... openat resumed>) = 3 [pid 5191] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5187] mkdir("./file0", 0777 [pid 4997] fstat(3, [pid 5190] <... memfd_create resumed>) = 3 [pid 4997] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4997] getdents64(3, 0x555557087620 /* 4 entries */, 32768) = 112 [pid 4997] umount2("./14/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5191] <... mmap resumed>) = 0x7faaa11e5000 [pid 4997] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5190] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5187] <... mkdir resumed>) = 0 [pid 4997] lstat("./14/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4997] unlink("./14/binderfs" [pid 5190] <... mmap resumed>) = 0x7faaa11e5000 [pid 4997] <... unlink resumed>) = 0 [pid 5187] mount("/dev/loop0", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [ 90.355928][ T5187] loop0: detected capacity change from 0 to 8192 [ 90.411124][ T5187] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 4997] umount2("./14/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5189] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 [ 90.454909][ T5187] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 90.465343][ T5187] REISERFS (device loop0): using ordered data mode [ 90.472784][ T5187] reiserfs: using flush barriers [ 90.483479][ T5187] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5190] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5191] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5190] <... write resumed>) = 4194304 [pid 5190] munmap(0x7faaa11e5000, 4194304) = 0 [pid 5190] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 5190] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5190] close(3) = 0 [pid 5190] mkdir("./file0", 0777) = 0 [pid 5190] mount("/dev/loop5", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5188] <... write resumed>) = 4194304 [ 90.584274][ T5190] loop5: detected capacity change from 0 to 8192 [ 90.601305][ T5187] REISERFS (device loop0): checking transaction log (loop0) [ 90.611170][ T5190] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5188] munmap(0x7faaa11e5000, 4194304) = 0 [ 90.626284][ T5190] REISERFS (device loop5): found reiserfs format "3.5" with non-standard journal [ 90.627248][ T5187] REISERFS (device loop0): Using tea hash to sort names [ 90.636916][ T5190] REISERFS (device loop5): using ordered data mode [ 90.650718][ T5190] reiserfs: using flush barriers [ 90.660365][ T5190] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5188] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 5188] ioctl(4, LOOP_SET_FD, 3 [pid 4997] <... umount2 resumed>) = 0 [pid 4997] umount2("./14/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4997] lstat("./14/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4997] umount2("./14/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4997] openat(AT_FDCWD, "./14/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 4997] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4997] getdents64(4, 0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4997] getdents64(4, 0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4997] close(4) = 0 [pid 4997] rmdir("./14/file0") = 0 [pid 4997] getdents64(3, 0x555557087620 /* 0 entries */, 32768) = 0 [pid 4997] close(3) = 0 [pid 4997] rmdir("./14") = 0 [pid 4997] mkdir("./15", 0777) = 0 [pid 4997] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5188] <... ioctl resumed>) = 0 [pid 4997] <... openat resumed>) = 3 [pid 5189] <... write resumed>) = 4194304 [pid 5188] close(3) = 0 [pid 4997] ioctl(3, LOOP_CLR_FD [pid 5188] mkdir("./file0", 0777 [pid 4997] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5188] <... mkdir resumed>) = 0 [pid 4997] close(3 [ 90.661212][ T5187] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 90.688357][ T5188] loop3: detected capacity change from 0 to 8192 [pid 5188] mount("/dev/loop3", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 4997] <... close resumed>) = 0 [pid 4997] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5191] <... write resumed>) = 4194304 [pid 5189] munmap(0x7faaa11e5000, 4194304 [pid 4997] <... clone resumed>, child_tidptr=0x5555570865d0) = 5195 [pid 5187] <... mount resumed>) = 0 ./strace-static-x86_64: Process 5195 attached [pid 5191] munmap(0x7faaa11e5000, 4194304 [pid 5189] <... munmap resumed>) = 0 [pid 5187] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5195] chdir("./15" [pid 5191] <... munmap resumed>) = 0 [pid 5189] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5187] <... openat resumed>) = 3 [ 90.728043][ T5190] REISERFS (device loop5): checking transaction log (loop5) [ 90.736815][ T5188] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 90.755901][ T5188] REISERFS (device loop3): found reiserfs format "3.5" with non-standard journal [ 90.761158][ T5190] REISERFS (device loop5): Using tea hash to sort names [pid 5195] <... chdir resumed>) = 0 [pid 5191] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5189] <... openat resumed>) = 4 [pid 5187] chdir("./file0" [pid 5190] <... mount resumed>) = 0 [pid 5190] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5195] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5191] <... openat resumed>) = 4 [pid 5189] ioctl(4, LOOP_SET_FD, 3 [pid 5187] <... chdir resumed>) = 0 [pid 5195] <... prctl resumed>) = 0 [pid 5191] ioctl(4, LOOP_SET_FD, 3 [pid 5190] <... openat resumed>) = 3 [pid 5190] chdir("./file0") = 0 [pid 5190] ioctl(4, LOOP_CLR_FD) = 0 [pid 5190] close(4 [pid 5187] ioctl(4, LOOP_CLR_FD [pid 5195] setpgid(0, 0 [pid 5191] <... ioctl resumed>) = 0 [pid 5189] <... ioctl resumed>) = 0 [pid 5187] <... ioctl resumed>) = 0 [pid 5190] <... close resumed>) = 0 [pid 5195] <... setpgid resumed>) = 0 [pid 5187] close(4 [pid 5195] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5191] close(3 [ 90.768029][ T5188] REISERFS (device loop3): using ordered data mode [ 90.775026][ T5190] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 90.779507][ T5188] reiserfs: using flush barriers [ 90.793908][ T5189] loop1: detected capacity change from 0 to 8192 [ 90.800797][ T5191] loop4: detected capacity change from 0 to 8192 [ 90.808588][ T5188] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5190] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5189] close(3 [pid 5187] <... close resumed>) = 0 [pid 5187] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5187] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 5195] <... openat resumed>) = 3 [pid 5191] <... close resumed>) = 0 [pid 5190] <... openat resumed>) = 4 [pid 5189] <... close resumed>) = 0 [pid 5187] <... mmap resumed>) = 0x20000000 [pid 5187] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5187] exit_group(0) = ? [pid 5195] write(3, "1000", 4 [pid 5191] mkdir("./file0", 0777 [pid 5190] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 5189] mkdir("./file0", 0777 [pid 5187] +++ exited with 0 +++ [pid 5195] <... write resumed>) = 4 [pid 5191] <... mkdir resumed>) = 0 [pid 4995] --- 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=12 /* 0.12 s */} --- [pid 5190] <... mmap resumed>) = 0x20000000 [pid 5195] close(3 [pid 5191] mount("/dev/loop4", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5190] ioctl(4, FS_IOC_GETVERSION [pid 5189] <... mkdir resumed>) = 0 [pid 5195] <... close resumed>) = 0 [pid 4995] umount2("./15", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5195] symlink("/dev/binderfs", "./binderfs" [pid 5190] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5189] mount("/dev/loop1", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5195] <... symlink resumed>) = 0 [pid 5190] exit_group(0 [pid 4995] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5195] memfd_create("syzkaller", 0 [pid 5190] <... exit_group resumed>) = ? [pid 5195] <... memfd_create resumed>) = 3 [pid 5190] +++ exited with 0 +++ [pid 4995] openat(AT_FDCWD, "./15", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5195] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7faaa11e5000 [ 90.827984][ T5188] REISERFS (device loop3): checking transaction log (loop3) [ 90.838824][ T5188] REISERFS (device loop3): Using tea hash to sort names [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5190, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- [pid 4995] <... openat resumed>) = 3 [pid 5188] <... mount resumed>) = 0 [pid 5000] restart_syscall(<... resuming interrupted clone ...> [pid 4995] fstat(3, [pid 5188] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5000] <... restart_syscall resumed>) = 0 [pid 4995] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5188] <... openat resumed>) = 3 [pid 4995] getdents64(3, [pid 5188] chdir("./file0" [pid 4995] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 5188] <... chdir resumed>) = 0 [pid 5000] umount2("./14", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4995] umount2("./15/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5188] ioctl(4, LOOP_CLR_FD [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4995] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5188] <... ioctl resumed>) = 0 [pid 5000] openat(AT_FDCWD, "./14", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4995] lstat("./15/binderfs", [pid 5188] close(4 [pid 5000] <... openat resumed>) = 3 [pid 4995] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5188] <... close resumed>) = 0 [pid 5000] fstat(3, [pid 4995] unlink("./15/binderfs" [pid 5188] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5000] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4995] <... unlink resumed>) = 0 [pid 5188] <... openat resumed>) = 4 [pid 5000] getdents64(3, [pid 4995] umount2("./15/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5188] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 5000] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [ 90.875515][ T5191] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 90.877549][ T5188] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 90.889395][ T5189] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 90.912433][ T5191] REISERFS (device loop4): found reiserfs format "3.5" with non-standard journal [pid 5195] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5188] <... mmap resumed>) = 0x20000000 [pid 5000] umount2("./14/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5188] ioctl(4, FS_IOC_GETVERSION [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5188] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5000] lstat("./14/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5188] exit_group(0) = ? [pid 5000] unlink("./14/binderfs") = 0 [pid 5188] +++ exited with 0 +++ [pid 5000] umount2("./14/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5188, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=17 /* 0.17 s */} --- [pid 4998] umount2("./15", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./15", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 4998] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] getdents64(3, 0x555557087620 /* 4 entries */, 32768) = 112 [pid 4998] umount2("./15/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./15/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4998] unlink("./15/binderfs") = 0 [ 90.948666][ T5189] REISERFS (device loop1): found reiserfs format "3.5" with non-standard journal [ 90.975222][ T5191] REISERFS (device loop4): using ordered data mode [ 90.982254][ T5191] reiserfs: using flush barriers [pid 4998] umount2("./15/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5191] <... mount resumed>) = 0 [pid 5191] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5191] chdir("./file0") = 0 [pid 5191] ioctl(4, LOOP_CLR_FD) = 0 [pid 5191] close(4) = 0 [ 90.992735][ T5191] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 91.009439][ T5191] REISERFS (device loop4): checking transaction log (loop4) [ 91.017999][ T5189] REISERFS (device loop1): using ordered data mode [ 91.025132][ T5189] reiserfs: using flush barriers [ 91.030407][ T5191] REISERFS (device loop4): Using tea hash to sort names [ 91.037756][ T5191] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [pid 5191] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5195] <... write resumed>) = 4194304 [pid 5191] <... openat resumed>) = 4 [pid 5195] munmap(0x7faaa11e5000, 4194304 [pid 5191] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0) = 0x20000000 [pid 5191] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5191] exit_group(0 [pid 5195] <... munmap resumed>) = 0 [pid 5191] <... exit_group resumed>) = ? [pid 5195] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5191] +++ exited with 0 +++ [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5191, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 5195] <... openat resumed>) = 4 [pid 5195] ioctl(4, LOOP_SET_FD, 3 [pid 4999] umount2("./16", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5195] <... ioctl resumed>) = 0 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5195] close(3 [pid 4999] openat(AT_FDCWD, "./16", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5195] <... close resumed>) = 0 [pid 5195] mkdir("./file0", 0777 [pid 4999] <... openat resumed>) = 3 [pid 4999] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5195] <... mkdir resumed>) = 0 [pid 4999] getdents64(3, [pid 5195] mount("/dev/loop2", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 4999] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [ 91.075880][ T5189] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 91.101818][ T5195] loop2: detected capacity change from 0 to 8192 [pid 4999] umount2("./16/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] <... umount2 resumed>) = 0 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] umount2("./14/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] lstat("./16/binderfs", [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] lstat("./14/file0", [pid 4999] unlink("./16/binderfs" [pid 5000] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] <... unlink resumed>) = 0 [ 91.125906][ T5189] REISERFS (device loop1): checking transaction log (loop1) [ 91.135187][ T5195] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 91.149434][ T5189] REISERFS (device loop1): Using tea hash to sort names [ 91.156986][ T5189] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 91.167267][ T5195] REISERFS (device loop2): found reiserfs format "3.5" with non-standard journal [pid 5189] <... mount resumed>) = 0 [pid 5000] umount2("./14/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] umount2("./16/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5189] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5189] <... openat resumed>) = 3 [pid 5000] openat(AT_FDCWD, "./14/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5189] chdir("./file0" [pid 5000] <... openat resumed>) = 4 [pid 5189] <... chdir resumed>) = 0 [pid 5000] fstat(4, [pid 4995] <... umount2 resumed>) = 0 [pid 5189] ioctl(4, LOOP_CLR_FD [pid 5000] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5189] <... ioctl resumed>) = 0 [pid 5000] getdents64(4, [pid 4995] umount2("./15/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] <... umount2 resumed>) = 0 [ 91.182269][ T5195] REISERFS (device loop2): using ordered data mode [ 91.189744][ T5195] reiserfs: using flush barriers [ 91.196902][ T5195] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5189] close(4 [pid 5000] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4995] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5189] <... close resumed>) = 0 [pid 5000] getdents64(4, [pid 4998] umount2("./15/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4995] lstat("./15/file0", [pid 5189] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5000] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5189] <... openat resumed>) = 4 [pid 5000] close(4 [pid 4998] lstat("./15/file0", [pid 4995] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5189] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 5000] <... close resumed>) = 0 [pid 4998] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4995] umount2("./15/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5189] <... mmap resumed>) = 0x20000000 [pid 5000] rmdir("./14/file0" [pid 4998] umount2("./15/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4995] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5195] <... mount resumed>) = 0 [pid 5189] ioctl(4, FS_IOC_GETVERSION [pid 5000] <... rmdir resumed>) = 0 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4995] openat(AT_FDCWD, "./15/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5195] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5189] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5000] getdents64(3, [pid 4998] openat(AT_FDCWD, "./15/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4995] <... openat resumed>) = 4 [pid 5195] <... openat resumed>) = 3 [pid 5189] exit_group(0 [pid 5000] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 4998] <... openat resumed>) = 4 [pid 4995] fstat(4, [pid 5195] chdir("./file0" [pid 5189] <... exit_group resumed>) = ? [pid 5000] close(3 [pid 4998] fstat(4, [pid 4995] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5195] <... chdir resumed>) = 0 [pid 5189] +++ exited with 0 +++ [pid 5000] <... close resumed>) = 0 [pid 4998] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4995] getdents64(4, [pid 5195] ioctl(4, LOOP_CLR_FD [pid 5000] rmdir("./14" [pid 4998] getdents64(4, [pid 4996] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5189, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- [pid 4995] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 5195] <... ioctl resumed>) = 0 [pid 5000] <... rmdir resumed>) = 0 [pid 4998] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4995] getdents64(4, [pid 5195] close(4 [pid 5000] mkdir("./15", 0777 [pid 4999] <... umount2 resumed>) = 0 [pid 4998] getdents64(4, [pid 4995] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 5000] <... mkdir resumed>) = 0 [pid 4998] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4995] close(4 [pid 5000] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4998] close(4 [pid 4995] <... close resumed>) = 0 [pid 5000] <... openat resumed>) = 3 [pid 4998] <... close resumed>) = 0 [pid 4995] rmdir("./15/file0" [pid 5000] ioctl(3, LOOP_CLR_FD [pid 4998] rmdir("./15/file0" [pid 4996] umount2("./15", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4995] <... rmdir resumed>) = 0 [pid 5000] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4998] <... rmdir resumed>) = 0 [pid 4996] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4995] getdents64(3, [pid 5000] close(3 [pid 4998] getdents64(3, [pid 4996] openat(AT_FDCWD, "./15", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4995] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 5000] <... close resumed>) = 0 [pid 4998] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 4996] <... openat resumed>) = 3 [pid 4995] close(3 [pid 5195] <... close resumed>) = 0 [pid 5000] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4999] umount2("./16/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5195] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4998] close(3 [pid 4996] fstat(3, [pid 4995] <... close resumed>) = 0 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] <... close resumed>) = 0 [pid 4996] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4995] rmdir("./15" [pid 5195] <... openat resumed>) = 4 [pid 5000] <... clone resumed>, child_tidptr=0x5555570865d0) = 5199 [pid 4999] lstat("./16/file0", [pid 4998] rmdir("./15" [pid 4996] getdents64(3, [pid 4995] <... rmdir resumed>) = 0 [pid 5195] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 4999] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] <... rmdir resumed>) = 0 [pid 4996] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 4995] mkdir("./16", 0777./strace-static-x86_64: Process 5199 attached [pid 5195] <... mmap resumed>) = 0x20000000 [pid 4999] umount2("./16/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] mkdir("./16", 0777 [pid 4996] umount2("./15/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4995] <... mkdir resumed>) = 0 [pid 5199] chdir("./15" [pid 5195] ioctl(4, FS_IOC_GETVERSION [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] <... mkdir resumed>) = 0 [pid 4996] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4995] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5199] <... chdir resumed>) = 0 [pid 5195] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [ 91.229204][ T5195] REISERFS (device loop2): checking transaction log (loop2) [ 91.242950][ T5195] REISERFS (device loop2): Using tea hash to sort names [ 91.251305][ T5195] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 4999] openat(AT_FDCWD, "./16/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4998] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4996] lstat("./15/binderfs", [pid 4995] <... openat resumed>) = 3 [pid 5199] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5195] exit_group(0 [pid 4999] <... openat resumed>) = 4 [pid 4998] <... openat resumed>) = 3 [pid 4996] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4995] ioctl(3, LOOP_CLR_FD [pid 5199] <... prctl resumed>) = 0 [pid 5195] <... exit_group resumed>) = ? [pid 4999] fstat(4, [pid 4998] ioctl(3, LOOP_CLR_FD [pid 4996] unlink("./15/binderfs" [pid 4995] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5199] setpgid(0, 0 [pid 4998] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4996] <... unlink resumed>) = 0 [pid 4995] close(3 [pid 5199] <... setpgid resumed>) = 0 [pid 5195] +++ exited with 0 +++ [pid 4999] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] close(3 [pid 4996] umount2("./15/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4995] <... close resumed>) = 0 [pid 5199] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4999] getdents64(4, [pid 4998] <... close resumed>) = 0 [pid 4997] --- 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 */} --- [pid 4995] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5199] <... openat resumed>) = 3 [pid 4999] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4998] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4997] restart_syscall(<... resuming interrupted clone ...> [pid 5199] write(3, "1000", 4 [pid 4999] getdents64(4, [pid 4997] <... restart_syscall resumed>) = 0 [pid 4995] <... clone resumed>, child_tidptr=0x5555570865d0) = 5200 [pid 5199] <... write resumed>) = 4 [pid 4999] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4998] <... clone resumed>, child_tidptr=0x5555570865d0) = 5201 [pid 5199] close(3 [pid 4999] close(4 [pid 5199] <... close resumed>) = 0 [pid 4999] <... close resumed>) = 0 [pid 4997] umount2("./15", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5199] symlink("/dev/binderfs", "./binderfs" [pid 4999] rmdir("./16/file0" [pid 4997] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5199] <... symlink resumed>) = 0 [pid 4997] openat(AT_FDCWD, "./15", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5199] memfd_create("syzkaller", 0 [pid 4999] <... rmdir resumed>) = 0 [pid 4997] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5201 attached [pid 5199] <... memfd_create resumed>) = 3 [pid 4999] getdents64(3, [pid 4997] fstat(3, ./strace-static-x86_64: Process 5200 attached [pid 5201] chdir("./16" [pid 5199] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 4999] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 4997] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5201] <... chdir resumed>) = 0 [pid 5200] chdir("./16" [pid 5199] <... mmap resumed>) = 0x7faaa11e5000 [pid 4999] close(3 [pid 4997] getdents64(3, [pid 5201] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5200] <... chdir resumed>) = 0 [pid 4999] <... close resumed>) = 0 [pid 4997] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 5201] <... prctl resumed>) = 0 [pid 5200] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4999] rmdir("./16" [pid 4997] umount2("./15/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5201] setpgid(0, 0 [pid 5200] <... prctl resumed>) = 0 [pid 4999] <... rmdir resumed>) = 0 [pid 4997] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5201] <... setpgid resumed>) = 0 [pid 5200] setpgid(0, 0 [pid 4997] lstat("./15/binderfs", [pid 5200] <... setpgid resumed>) = 0 [pid 4997] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5201] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5200] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4999] mkdir("./17", 0777 [pid 4997] unlink("./15/binderfs" [pid 5201] <... openat resumed>) = 3 [pid 5200] <... openat resumed>) = 3 [pid 4999] <... mkdir resumed>) = 0 [pid 4997] <... unlink resumed>) = 0 [pid 5201] write(3, "1000", 4 [pid 5200] write(3, "1000", 4 [pid 4999] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4997] umount2("./15/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5201] <... write resumed>) = 4 [pid 5200] <... write resumed>) = 4 [pid 4999] <... openat resumed>) = 3 [pid 5201] close(3 [pid 5200] close(3 [pid 4999] ioctl(3, LOOP_CLR_FD [pid 5201] <... close resumed>) = 0 [pid 5200] <... close resumed>) = 0 [pid 5201] symlink("/dev/binderfs", "./binderfs" [pid 5200] symlink("/dev/binderfs", "./binderfs" [pid 4999] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5201] <... symlink resumed>) = 0 [pid 5200] <... symlink resumed>) = 0 [pid 5201] memfd_create("syzkaller", 0 [pid 5200] memfd_create("syzkaller", 0 [pid 4999] close(3 [pid 5201] <... memfd_create resumed>) = 3 [pid 5200] <... memfd_create resumed>) = 3 [pid 4999] <... close resumed>) = 0 [pid 5201] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5200] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 4999] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5201] <... mmap resumed>) = 0x7faaa11e5000 [pid 5200] <... mmap resumed>) = 0x7faaa11e5000 [pid 4999] <... clone resumed>, child_tidptr=0x5555570865d0) = 5202 ./strace-static-x86_64: Process 5202 attached [pid 5202] chdir("./17") = 0 [pid 5202] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5202] setpgid(0, 0) = 0 [pid 5202] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5202] write(3, "1000", 4) = 4 [pid 4996] <... umount2 resumed>) = 0 [pid 5202] close(3) = 0 [pid 5202] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5202] memfd_create("syzkaller", 0) = 3 [pid 5201] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5202] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7faaa11e5000 [pid 5199] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5200] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 4996] umount2("./15/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4996] lstat("./15/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4996] umount2("./15/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4996] openat(AT_FDCWD, "./15/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 4996] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4996] getdents64(4, 0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4996] getdents64(4, 0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4996] close(4) = 0 [pid 4996] rmdir("./15/file0") = 0 [pid 4997] <... umount2 resumed>) = 0 [pid 4996] getdents64(3, [pid 4997] umount2("./15/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4996] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 4997] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4996] close(3 [pid 4997] lstat("./15/file0", [pid 4996] <... close resumed>) = 0 [pid 4997] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4996] rmdir("./15" [pid 4997] umount2("./15/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4996] <... rmdir resumed>) = 0 [pid 4997] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4996] mkdir("./16", 0777 [pid 4997] openat(AT_FDCWD, "./15/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4996] <... mkdir resumed>) = 0 [pid 4997] <... openat resumed>) = 4 [pid 4996] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4997] fstat(4, [pid 4996] <... openat resumed>) = 3 [pid 4997] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4996] ioctl(3, LOOP_CLR_FD [pid 4997] getdents64(4, [pid 4996] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4997] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4996] close(3 [pid 4997] getdents64(4, [pid 4996] <... close resumed>) = 0 [pid 4996] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570865d0) = 5203 [pid 4997] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4997] close(4 [pid 5201] <... write resumed>) = 4194304 [pid 4997] <... close resumed>) = 0 ./strace-static-x86_64: Process 5203 attached [pid 5201] munmap(0x7faaa11e5000, 4194304 [pid 5199] <... write resumed>) = 4194304 [pid 4997] rmdir("./15/file0" [pid 5203] chdir("./16" [pid 5201] <... munmap resumed>) = 0 [pid 5199] munmap(0x7faaa11e5000, 4194304 [pid 5203] <... chdir resumed>) = 0 [pid 4997] <... rmdir resumed>) = 0 [pid 5202] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5203] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5201] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5199] <... munmap resumed>) = 0 [pid 4997] getdents64(3, [pid 5203] <... prctl resumed>) = 0 [pid 5201] <... openat resumed>) = 4 [pid 5199] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4997] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 5203] setpgid(0, 0 [pid 5201] ioctl(4, LOOP_SET_FD, 3 [pid 5199] <... openat resumed>) = 4 [pid 4997] close(3 [pid 5203] <... setpgid resumed>) = 0 [pid 5201] <... ioctl resumed>) = 0 [pid 5199] ioctl(4, LOOP_SET_FD, 3 [pid 4997] <... close resumed>) = 0 [pid 5203] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4997] rmdir("./15" [pid 5203] <... openat resumed>) = 3 [pid 4997] <... rmdir resumed>) = 0 [pid 5203] write(3, "1000", 4 [pid 4997] mkdir("./16", 0777 [pid 5203] <... write resumed>) = 4 [pid 5203] close(3 [pid 4997] <... mkdir resumed>) = 0 [pid 5203] <... close resumed>) = 0 [pid 5201] close(3 [pid 5199] <... ioctl resumed>) = 0 [pid 4997] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5203] symlink("/dev/binderfs", "./binderfs" [pid 5201] <... close resumed>) = 0 [pid 5199] close(3 [pid 4997] <... openat resumed>) = 3 [pid 5203] <... symlink resumed>) = 0 [pid 5201] mkdir("./file0", 0777 [pid 5199] <... close resumed>) = 0 [pid 4997] ioctl(3, LOOP_CLR_FD [pid 5203] memfd_create("syzkaller", 0 [pid 4997] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5203] <... memfd_create resumed>) = 3 [pid 5199] mkdir("./file0", 0777 [pid 5201] <... mkdir resumed>) = 0 [pid 4997] close(3 [pid 5203] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5201] mount("/dev/loop3", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5200] <... write resumed>) = 4194304 [pid 5199] <... mkdir resumed>) = 0 [pid 4997] <... close resumed>) = 0 [pid 5203] <... mmap resumed>) = 0x7faaa11e5000 [ 91.627047][ T5201] loop3: detected capacity change from 0 to 8192 [ 91.634690][ T5199] loop5: detected capacity change from 0 to 8192 [pid 5200] munmap(0x7faaa11e5000, 4194304 [pid 5199] mount("/dev/loop5", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 4997] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5202] <... write resumed>) = 4194304 [pid 5202] munmap(0x7faaa11e5000, 4194304) = 0 [pid 5200] <... munmap resumed>) = 0 [pid 5202] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5200] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4997] <... clone resumed>, child_tidptr=0x5555570865d0) = 5206 [pid 5202] <... openat resumed>) = 4 [pid 5200] <... openat resumed>) = 4 ./strace-static-x86_64: Process 5206 attached [ 91.675555][ T5201] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 91.695522][ T5201] REISERFS (device loop3): found reiserfs format "3.5" with non-standard journal [ 91.705189][ T5201] REISERFS (device loop3): using ordered data mode [ 91.706068][ T5200] loop0: detected capacity change from 0 to 8192 [ 91.712294][ T5201] reiserfs: using flush barriers [pid 5200] ioctl(4, LOOP_SET_FD, 3 [pid 5206] chdir("./16" [pid 5202] ioctl(4, LOOP_SET_FD, 3 [pid 5206] <... chdir resumed>) = 0 [pid 5206] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5206] setpgid(0, 0) = 0 [pid 5206] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5206] write(3, "1000", 4) = 4 [pid 5206] close(3) = 0 [pid 5206] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5206] memfd_create("syzkaller", 0 [pid 5203] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5202] <... ioctl resumed>) = 0 [pid 5200] <... ioctl resumed>) = 0 [pid 5206] <... memfd_create resumed>) = 3 [pid 5202] close(3) = 0 [pid 5200] close(3 [pid 5202] mkdir("./file0", 0777 [pid 5206] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5202] <... mkdir resumed>) = 0 [pid 5200] <... close resumed>) = 0 [pid 5206] <... mmap resumed>) = 0x7faaa11e5000 [pid 5202] mount("/dev/loop4", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5200] mkdir("./file0", 0777) = 0 [ 91.723725][ T5202] loop4: detected capacity change from 0 to 8192 [ 91.723826][ T5199] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 91.748277][ T5201] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 91.759027][ T5199] REISERFS (device loop5): found reiserfs format "3.5" with non-standard journal [pid 5200] mount("/dev/loop0", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [ 91.775292][ T5200] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 91.788613][ T5202] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 91.803297][ T5201] REISERFS (device loop3): checking transaction log (loop3) [ 91.805304][ T5199] REISERFS (device loop5): using ordered data mode [ 91.817195][ T5199] reiserfs: using flush barriers [ 91.823324][ T5200] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 91.828282][ T5202] REISERFS (device loop4): found reiserfs format "3.5" with non-standard journal [ 91.832702][ T5199] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 91.846876][ T5200] REISERFS (device loop0): using ordered data mode [ 91.858154][ T5199] REISERFS (device loop5): checking transaction log (loop5) [pid 5206] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5203] <... write resumed>) = 4194304 [pid 5203] munmap(0x7faaa11e5000, 4194304) = 0 [pid 5199] <... mount resumed>) = 0 [pid 5201] <... mount resumed>) = 0 [pid 5201] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5199] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5203] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5203] ioctl(4, LOOP_SET_FD, 3 [ 91.873361][ T5199] REISERFS (device loop5): Using tea hash to sort names [ 91.880966][ T5201] REISERFS (device loop3): Using tea hash to sort names [ 91.888304][ T5199] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 91.897757][ T5201] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 91.908354][ T5202] REISERFS (device loop4): using ordered data mode [ 91.915286][ T5202] reiserfs: using flush barriers [ 91.919268][ T5200] reiserfs: using flush barriers [pid 5201] <... openat resumed>) = 3 [pid 5199] <... openat resumed>) = 3 [pid 5201] chdir("./file0" [pid 5199] chdir("./file0" [pid 5201] <... chdir resumed>) = 0 [pid 5199] <... chdir resumed>) = 0 [pid 5201] ioctl(4, LOOP_CLR_FD [ 91.922685][ T5202] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 91.926535][ T5203] loop1: detected capacity change from 0 to 8192 [ 91.941995][ T5202] REISERFS (device loop4): checking transaction log (loop4) [ 91.956932][ T5202] REISERFS (device loop4): Using tea hash to sort names [ 91.964673][ T5202] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [pid 5199] ioctl(4, LOOP_CLR_FD [pid 5206] <... write resumed>) = 4194304 [pid 5203] <... ioctl resumed>) = 0 [pid 5202] <... mount resumed>) = 0 [pid 5201] <... ioctl resumed>) = 0 [pid 5199] <... ioctl resumed>) = 0 [pid 5206] munmap(0x7faaa11e5000, 4194304 [pid 5203] close(3 [pid 5202] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5201] close(4 [pid 5199] close(4 [pid 5203] <... close resumed>) = 0 [pid 5202] <... openat resumed>) = 3 [pid 5201] <... close resumed>) = 0 [pid 5199] <... close resumed>) = 0 [pid 5203] mkdir("./file0", 0777 [pid 5202] chdir("./file0" [pid 5201] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5199] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5206] <... munmap resumed>) = 0 [pid 5203] <... mkdir resumed>) = 0 [pid 5202] <... chdir resumed>) = 0 [pid 5201] <... openat resumed>) = 4 [pid 5199] <... openat resumed>) = 4 [pid 5203] mount("/dev/loop1", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5202] ioctl(4, LOOP_CLR_FD [pid 5201] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 5199] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 5206] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5202] <... ioctl resumed>) = 0 [pid 5201] <... mmap resumed>) = 0x20000000 [pid 5199] <... mmap resumed>) = 0x20000000 [pid 5206] <... openat resumed>) = 4 [pid 5202] close(4 [pid 5201] ioctl(4, FS_IOC_GETVERSION [pid 5199] ioctl(4, FS_IOC_GETVERSION [pid 5206] ioctl(4, LOOP_SET_FD, 3 [pid 5202] <... close resumed>) = 0 [pid 5201] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5199] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5202] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5201] exit_group(0 [pid 5199] exit_group(0 [pid 5202] <... openat resumed>) = 4 [pid 5201] <... exit_group resumed>) = ? [pid 5199] <... exit_group resumed>) = ? [pid 5202] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 5201] +++ exited with 0 +++ [pid 5199] +++ exited with 0 +++ [pid 5202] <... mmap resumed>) = 0x20000000 [pid 5202] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5199, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- [pid 5202] exit_group(0) = ? [pid 5202] +++ exited with 0 +++ [pid 5000] umount2("./15", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5201, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=11 /* 0.11 s */} --- [pid 5206] <... ioctl resumed>) = 0 [pid 5206] close(3) = 0 [pid 5206] mkdir("./file0", 0777 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5202, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=16 /* 0.16 s */} --- [pid 4998] umount2("./16", MNT_DETACH|UMOUNT_NOFOLLOW [ 91.974892][ 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 [ 91.994413][ T5206] loop2: detected capacity change from 0 to 8192 [ 92.002438][ T5203] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5000] openat(AT_FDCWD, "./15", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5206] <... mkdir resumed>) = 0 [pid 5000] <... openat resumed>) = 3 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5206] mount("/dev/loop2", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5000] fstat(3, [pid 4999] umount2("./17", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] openat(AT_FDCWD, "./16", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5000] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] <... openat resumed>) = 3 [pid 5000] getdents64(3, [pid 4999] openat(AT_FDCWD, "./17", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4998] fstat(3, [pid 5000] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 4999] <... openat resumed>) = 3 [pid 4998] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] umount2("./15/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] fstat(3, [ 92.030063][ T5203] REISERFS (device loop1): found reiserfs format "3.5" with non-standard journal [ 92.035878][ T5200] REISERFS (device loop0): checking transaction log (loop0) [ 92.040440][ T5206] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 92.060192][ T5203] REISERFS (device loop1): using ordered data mode [ 92.068653][ T5203] reiserfs: using flush barriers [ 92.071905][ T5200] REISERFS (device loop0): Using tea hash to sort names [pid 4998] getdents64(3, [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 5000] lstat("./15/binderfs", [pid 4999] getdents64(3, [pid 4998] umount2("./16/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4999] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5200] <... mount resumed>) = 0 [pid 5000] unlink("./15/binderfs" [pid 4999] umount2("./17/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] lstat("./16/binderfs", [ 92.075277][ T5206] REISERFS (device loop2): found reiserfs format "3.5" with non-standard journal [ 92.083395][ T5200] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 92.090002][ T5206] REISERFS (device loop2): using ordered data mode [ 92.099099][ T5203] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 92.105715][ T5206] reiserfs: using flush barriers [pid 5200] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5000] <... unlink resumed>) = 0 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5200] <... openat resumed>) = 3 [pid 5000] umount2("./15/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] lstat("./17/binderfs", [pid 4998] unlink("./16/binderfs" [pid 4999] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4998] <... unlink resumed>) = 0 [pid 4999] unlink("./17/binderfs" [pid 4998] umount2("./16/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] <... unlink resumed>) = 0 [pid 4999] umount2("./17/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5200] chdir("./file0") = 0 [ 92.128994][ T5203] REISERFS (device loop1): checking transaction log (loop1) [ 92.136620][ T5206] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 92.154078][ T5206] REISERFS (device loop2): checking transaction log (loop2) [ 92.157391][ T5203] REISERFS (device loop1): Using tea hash to sort names [pid 5200] ioctl(4, LOOP_CLR_FD) = 0 [pid 5200] close(4) = 0 [pid 5200] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5200] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0) = 0x20000000 [pid 5200] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5200] exit_group(0) = ? [pid 5200] +++ exited with 0 +++ [pid 4995] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5200, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=16 /* 0.16 s */} --- [pid 4995] umount2("./16", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4995] openat(AT_FDCWD, "./16", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [ 92.178577][ T5206] REISERFS (device loop2): Using tea hash to sort names [pid 4995] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4995] getdents64(3, 0x555557087620 /* 4 entries */, 32768) = 112 [pid 4995] umount2("./16/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4995] lstat("./16/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4995] unlink("./16/binderfs") = 0 [pid 4995] umount2("./16/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5206] <... mount resumed>) = 0 [pid 5206] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5206] chdir("./file0") = 0 [pid 5206] ioctl(4, LOOP_CLR_FD) = 0 [pid 5206] close(4) = 0 [pid 5206] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5206] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0) = 0x20000000 [pid 5206] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 4995] <... umount2 resumed>) = 0 [pid 4995] umount2("./16/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5206] exit_group(0 [pid 4995] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4995] lstat("./16/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5206] <... exit_group resumed>) = ? [pid 4995] umount2("./16/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5206] +++ exited with 0 +++ [pid 4995] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4995] openat(AT_FDCWD, "./16/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 4997] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5206, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- [pid 4995] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4995] getdents64(4, 0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4997] umount2("./16", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4995] getdents64(4, 0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4995] close(4) = 0 [pid 4997] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4997] openat(AT_FDCWD, "./16", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4995] rmdir("./16/file0" [pid 4997] <... openat resumed>) = 3 [pid 4995] <... rmdir resumed>) = 0 [pid 4997] fstat(3, [pid 4995] getdents64(3, 0x555557087620 /* 0 entries */, 32768) = 0 [pid 4995] close(3) = 0 [pid 4995] rmdir("./16" [pid 4997] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4995] <... rmdir resumed>) = 0 [pid 4997] getdents64(3, [pid 4995] mkdir("./17", 0777 [pid 4997] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 4995] <... mkdir resumed>) = 0 [pid 4997] umount2("./16/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4995] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4997] lstat("./16/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [ 92.205634][ T5206] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 92.227493][ T5203] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [pid 4997] unlink("./16/binderfs" [pid 5203] <... mount resumed>) = 0 [pid 4998] <... umount2 resumed>) = 0 [pid 4997] <... unlink resumed>) = 0 [pid 5203] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 4997] umount2("./16/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5203] <... openat resumed>) = 3 [pid 4995] <... openat resumed>) = 3 [pid 5203] chdir("./file0" [pid 4995] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5203] <... chdir resumed>) = 0 [pid 4995] close(3) = 0 [pid 5203] ioctl(4, LOOP_CLR_FD [pid 4995] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5203] <... ioctl resumed>) = 0 [pid 4995] <... clone resumed>, child_tidptr=0x5555570865d0) = 5211 [pid 5203] close(4) = 0 [pid 5203] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5203] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0) = 0x20000000 [pid 5203] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) ./strace-static-x86_64: Process 5211 attached [pid 5203] exit_group(0) = ? [pid 5211] chdir("./17") = 0 [pid 5211] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5203] +++ exited with 0 +++ [pid 4996] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5203, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=20 /* 0.20 s */} --- [pid 5211] <... prctl resumed>) = 0 [pid 5211] setpgid(0, 0) = 0 [pid 5211] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4996] umount2("./16", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5211] <... openat resumed>) = 3 [pid 4996] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5211] write(3, "1000", 4 [pid 4996] openat(AT_FDCWD, "./16", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5211] <... write resumed>) = 4 [pid 4996] <... openat resumed>) = 3 [pid 4996] fstat(3, [pid 5211] close(3 [pid 4996] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5211] <... close resumed>) = 0 [pid 4996] getdents64(3, [pid 5211] symlink("/dev/binderfs", "./binderfs" [pid 4996] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 5211] <... symlink resumed>) = 0 [pid 4996] umount2("./16/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5211] memfd_create("syzkaller", 0 [pid 4996] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5211] <... memfd_create resumed>) = 3 [pid 4996] lstat("./16/binderfs", [pid 5211] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 4996] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5211] <... mmap resumed>) = 0x7faaa11e5000 [pid 4996] unlink("./16/binderfs" [pid 5000] <... umount2 resumed>) = 0 [pid 4996] <... unlink resumed>) = 0 [pid 5000] umount2("./15/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] umount2("./16/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4996] umount2("./16/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./15/file0", [pid 4998] lstat("./16/file0", [pid 5000] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] umount2("./15/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] umount2("./16/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./15/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4998] openat(AT_FDCWD, "./16/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5000] <... openat resumed>) = 4 [pid 4998] <... openat resumed>) = 4 [pid 5000] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] fstat(4, [pid 5000] getdents64(4, [pid 4998] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4998] getdents64(4, [pid 5000] getdents64(4, [pid 4998] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 5000] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4998] getdents64(4, [pid 5000] close(4 [pid 4998] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 5000] <... close resumed>) = 0 [pid 4998] close(4 [pid 5000] rmdir("./15/file0" [pid 4998] <... close resumed>) = 0 [pid 5000] <... rmdir resumed>) = 0 [pid 4998] rmdir("./16/file0" [pid 5000] getdents64(3, [pid 4998] <... rmdir resumed>) = 0 [pid 5000] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 4998] getdents64(3, [pid 5000] close(3 [pid 4998] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 5000] <... close resumed>) = 0 [pid 4998] close(3 [pid 5000] rmdir("./15" [pid 4998] <... close resumed>) = 0 [pid 5000] <... rmdir resumed>) = 0 [pid 4998] rmdir("./16") = 0 [pid 5000] mkdir("./16", 0777 [pid 4998] mkdir("./17", 0777 [pid 5000] <... mkdir resumed>) = 0 [pid 5000] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4998] <... mkdir resumed>) = 0 [pid 5000] <... openat resumed>) = 3 [pid 4998] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5000] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 4998] ioctl(3, LOOP_CLR_FD [pid 5000] close(3 [pid 4998] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5000] <... close resumed>) = 0 [pid 4998] close(3 [pid 5000] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4998] <... close resumed>) = 0 [pid 4998] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5000] <... clone resumed>, child_tidptr=0x5555570865d0) = 5212 [pid 4998] <... clone resumed>, child_tidptr=0x5555570865d0) = 5213 ./strace-static-x86_64: Process 5213 attached [pid 4999] <... umount2 resumed>) = 0 [pid 5213] chdir("./17" [pid 4999] umount2("./17/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] lstat("./17/file0", [pid 5213] <... chdir resumed>) = 0 [pid 4999] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5213] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4999] umount2("./17/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5213] <... prctl resumed>) = 0 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5213] setpgid(0, 0 [pid 4999] openat(AT_FDCWD, "./17/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5213] <... setpgid resumed>) = 0 [pid 4999] <... openat resumed>) = 4 [pid 5213] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4999] fstat(4, [pid 5213] <... openat resumed>) = 3 [pid 4999] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 ./strace-static-x86_64: Process 5212 attached [pid 5213] write(3, "1000", 4 [pid 4999] getdents64(4, [pid 5213] <... write resumed>) = 4 [pid 4999] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 5213] close(3 [pid 5212] chdir("./16" [pid 4999] getdents64(4, [pid 5213] <... close resumed>) = 0 [pid 4999] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 5213] symlink("/dev/binderfs", "./binderfs" [pid 5212] <... chdir resumed>) = 0 [pid 4999] close(4 [pid 5213] <... symlink resumed>) = 0 [pid 4999] <... close resumed>) = 0 [pid 5212] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5213] memfd_create("syzkaller", 0 [pid 4999] rmdir("./17/file0" [pid 5213] <... memfd_create resumed>) = 3 [pid 5212] <... prctl resumed>) = 0 [pid 4999] <... rmdir resumed>) = 0 [pid 5213] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5212] setpgid(0, 0 [pid 4999] getdents64(3, [pid 5213] <... mmap resumed>) = 0x7faaa11e5000 [pid 4999] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 5212] <... setpgid resumed>) = 0 [pid 5211] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 4999] close(3 [pid 4997] <... umount2 resumed>) = 0 [pid 5212] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4999] <... close resumed>) = 0 [pid 4996] <... umount2 resumed>) = 0 [pid 4999] rmdir("./17" [pid 4997] umount2("./16/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4996] umount2("./16/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5212] <... openat resumed>) = 3 [pid 4999] <... rmdir resumed>) = 0 [pid 4996] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5212] write(3, "1000", 4 [pid 4999] mkdir("./18", 0777 [pid 4997] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4996] lstat("./16/file0", [pid 5212] <... write resumed>) = 4 [pid 4999] <... mkdir resumed>) = 0 [pid 5212] close(3 [pid 4999] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4997] lstat("./16/file0", [pid 4996] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5212] <... close resumed>) = 0 [pid 4999] <... openat resumed>) = 3 [pid 4996] umount2("./16/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5212] symlink("/dev/binderfs", "./binderfs" [pid 4999] ioctl(3, LOOP_CLR_FD [pid 4997] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4996] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5212] <... symlink resumed>) = 0 [pid 4999] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4997] umount2("./16/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4996] openat(AT_FDCWD, "./16/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5212] memfd_create("syzkaller", 0 [pid 4999] close(3 [pid 4997] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4996] <... openat resumed>) = 4 [pid 5212] <... memfd_create resumed>) = 3 [pid 4999] <... close resumed>) = 0 [pid 4997] openat(AT_FDCWD, "./16/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4996] fstat(4, [pid 5212] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 4999] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4997] <... openat resumed>) = 4 [pid 4996] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5212] <... mmap resumed>) = 0x7faaa11e5000 [pid 4996] getdents64(4, [pid 4999] <... clone resumed>, child_tidptr=0x5555570865d0) = 5214 [pid 4997] fstat(4, [pid 4996] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4996] getdents64(4, 0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4996] close(4) = 0 [pid 4996] rmdir("./16/file0") = 0 [pid 4997] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4996] getdents64(3, 0x555557087620 /* 0 entries */, 32768) = 0 [pid 4996] close(3) = 0 [pid 4996] rmdir("./16") = 0 [pid 4997] getdents64(4, [pid 4996] mkdir("./17", 0777 [pid 4997] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4996] <... mkdir resumed>) = 0 [pid 4996] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4997] getdents64(4, [pid 4996] <... openat resumed>) = 3 [pid 4997] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4996] ioctl(3, LOOP_CLR_FD [pid 4997] close(4 [pid 4996] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4996] close(3 [pid 4997] <... close resumed>) = 0 [pid 4996] <... close resumed>) = 0 [pid 4997] rmdir("./16/file0" [pid 4996] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5214 attached [pid 4997] <... rmdir resumed>) = 0 [pid 5214] chdir("./18" [pid 4996] <... clone resumed>, child_tidptr=0x5555570865d0) = 5215 ./strace-static-x86_64: Process 5215 attached [pid 5214] <... chdir resumed>) = 0 [pid 4997] getdents64(3, [pid 5215] chdir("./17" [pid 5214] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5215] <... chdir resumed>) = 0 [pid 5214] <... prctl resumed>) = 0 [pid 4997] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 5214] setpgid(0, 0 [pid 4997] close(3 [pid 5215] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5214] <... setpgid resumed>) = 0 [pid 5215] <... prctl resumed>) = 0 [pid 4997] <... close resumed>) = 0 [pid 5214] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5215] setpgid(0, 0 [pid 4997] rmdir("./16" [pid 5215] <... setpgid resumed>) = 0 [pid 5214] <... openat resumed>) = 3 [pid 4997] <... rmdir resumed>) = 0 [pid 5215] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5214] write(3, "1000", 4 [pid 4997] mkdir("./17", 0777 [pid 5214] <... write resumed>) = 4 [pid 5215] <... openat resumed>) = 3 [pid 5214] close(3 [pid 5215] write(3, "1000", 4 [pid 5214] <... close resumed>) = 0 [pid 4997] <... mkdir resumed>) = 0 [pid 5215] <... write resumed>) = 4 [pid 5214] symlink("/dev/binderfs", "./binderfs" [pid 4997] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5215] close(3 [pid 5214] <... symlink resumed>) = 0 [pid 4997] <... openat resumed>) = 3 [pid 5215] <... close resumed>) = 0 [pid 5214] memfd_create("syzkaller", 0 [pid 4997] ioctl(3, LOOP_CLR_FD [pid 5215] symlink("/dev/binderfs", "./binderfs" [pid 5214] <... memfd_create resumed>) = 3 [pid 4997] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5215] <... symlink resumed>) = 0 [pid 5214] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 4997] close(3 [pid 5215] memfd_create("syzkaller", 0 [pid 4997] <... close resumed>) = 0 [pid 5215] <... memfd_create resumed>) = 3 [pid 5214] <... mmap resumed>) = 0x7faaa11e5000 [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 [pid 4997] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5215] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5213] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5215] <... mmap resumed>) = 0x7faaa11e5000 [pid 5211] <... write resumed>) = 4194304 [pid 4997] <... clone resumed>, child_tidptr=0x5555570865d0) = 5216 [pid 5211] munmap(0x7faaa11e5000, 4194304./strace-static-x86_64: Process 5216 attached ) = 0 [pid 5216] chdir("./17" [pid 5211] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5216] <... chdir resumed>) = 0 [pid 5216] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5211] <... openat resumed>) = 4 [pid 5216] <... prctl resumed>) = 0 [pid 5211] ioctl(4, LOOP_SET_FD, 3 [pid 5216] setpgid(0, 0) = 0 [pid 5216] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5211] <... ioctl resumed>) = 0 [pid 5216] <... openat resumed>) = 3 [pid 5211] close(3 [pid 5216] write(3, "1000", 4) = 4 [pid 5211] <... close resumed>) = 0 [pid 5216] close(3) = 0 [pid 5211] mkdir("./file0", 0777 [pid 5216] symlink("/dev/binderfs", "./binderfs" [pid 5211] <... mkdir resumed>) = 0 [pid 5216] <... symlink resumed>) = 0 [pid 5211] mount("/dev/loop0", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5216] memfd_create("syzkaller", 0) = 3 [pid 5216] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7faaa11e5000 [pid 5215] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [ 92.656722][ T5211] loop0: detected capacity change from 0 to 8192 [ 92.686141][ T5211] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5214] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5213] <... write resumed>) = 4194304 [pid 5213] munmap(0x7faaa11e5000, 4194304) = 0 [pid 5213] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 5213] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5213] close(3) = 0 [pid 5213] mkdir("./file0", 0777) = 0 [pid 5213] mount("/dev/loop3", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [ 92.754217][ T5213] loop3: detected capacity change from 0 to 8192 [ 92.768341][ T5211] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 92.785540][ T5213] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5216] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5212] <... write resumed>) = 4194304 [pid 5212] munmap(0x7faaa11e5000, 4194304) = 0 [pid 5212] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [ 92.804073][ T5213] REISERFS (device loop3): found reiserfs format "3.5" with non-standard journal [ 92.814457][ T5213] REISERFS (device loop3): using ordered data mode [ 92.821415][ T5213] reiserfs: using flush barriers [ 92.830796][ T5213] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 92.831427][ T5211] REISERFS (device loop0): using ordered data mode [pid 5212] ioctl(4, LOOP_SET_FD, 3 [pid 5216] <... write resumed>) = 4194304 [ 92.854213][ T5213] REISERFS (device loop3): checking transaction log (loop3) [ 92.855806][ T5212] loop5: detected capacity change from 0 to 8192 [ 92.871646][ T5213] REISERFS (device loop3): Using tea hash to sort names [pid 5216] munmap(0x7faaa11e5000, 4194304 [pid 5215] <... write resumed>) = 4194304 [pid 5214] <... write resumed>) = 4194304 [pid 5213] <... mount resumed>) = 0 [pid 5212] <... ioctl resumed>) = 0 [pid 5216] <... munmap resumed>) = 0 [pid 5215] munmap(0x7faaa11e5000, 4194304 [pid 5214] munmap(0x7faaa11e5000, 4194304 [pid 5213] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5212] close(3 [pid 5216] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5215] <... munmap resumed>) = 0 [pid 5214] <... munmap resumed>) = 0 [pid 5213] <... openat resumed>) = 3 [pid 5212] <... close resumed>) = 0 [pid 5216] <... openat resumed>) = 4 [pid 5215] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5214] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5213] chdir("./file0" [pid 5212] mkdir("./file0", 0777 [pid 5216] ioctl(4, LOOP_SET_FD, 3 [pid 5215] <... openat resumed>) = 4 [pid 5214] <... openat resumed>) = 4 [pid 5213] <... chdir resumed>) = 0 [pid 5212] <... mkdir resumed>) = 0 [pid 5216] <... ioctl resumed>) = 0 [ 92.899410][ T5211] reiserfs: using flush barriers [ 92.903167][ T5213] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 92.914140][ T5211] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 92.925601][ T5216] loop2: detected capacity change from 0 to 8192 [ 92.937300][ T5211] REISERFS (device loop0): checking transaction log (loop0) [pid 5215] ioctl(4, LOOP_SET_FD, 3 [pid 5216] close(3 [pid 5214] ioctl(4, LOOP_SET_FD, 3 [pid 5213] ioctl(4, LOOP_CLR_FD [pid 5212] mount("/dev/loop5", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5216] <... close resumed>) = 0 [pid 5213] <... ioctl resumed>) = 0 [pid 5216] mkdir("./file0", 0777 [pid 5213] close(4 [pid 5216] <... mkdir resumed>) = 0 [pid 5213] <... close resumed>) = 0 [pid 5216] mount("/dev/loop2", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5213] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5213] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0) = 0x20000000 [pid 5213] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5213] exit_group(0) = ? [pid 5213] +++ exited with 0 +++ [pid 5214] <... ioctl resumed>) = 0 [pid 5214] close(3) = 0 [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5213, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- [pid 5215] <... ioctl resumed>) = 0 [pid 4998] umount2("./17", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5215] close(3 [pid 5214] mkdir("./file0", 0777 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./17", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5215] <... close resumed>) = 0 [ 92.940989][ T5215] loop1: detected capacity change from 0 to 8192 [ 92.945769][ T5214] loop4: detected capacity change from 0 to 8192 [ 92.953103][ T5211] REISERFS (device loop0): Using tea hash to sort names [ 92.970066][ T5216] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 92.986799][ T5211] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5215] mkdir("./file0", 0777 [pid 5214] <... mkdir resumed>) = 0 [pid 4998] <... openat resumed>) = 3 [pid 5215] <... mkdir resumed>) = 0 [pid 5214] mount("/dev/loop4", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 4998] fstat(3, [pid 5211] <... mount resumed>) = 0 [pid 5211] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5211] chdir("./file0") = 0 [pid 5211] ioctl(4, LOOP_CLR_FD) = 0 [pid 5211] close(4 [pid 5215] mount("/dev/loop1", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 4998] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] getdents64(3, 0x555557087620 /* 4 entries */, 32768) = 112 [pid 4998] umount2("./17/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5211] <... close resumed>) = 0 [ 92.996498][ T5212] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 92.998239][ T5216] REISERFS (device loop2): found reiserfs format "3.5" with non-standard journal [ 93.010796][ T5212] REISERFS (device loop5): found reiserfs format "3.5" with non-standard journal [ 93.021252][ T5216] REISERFS (device loop2): using ordered data mode [ 93.037917][ T5216] reiserfs: using flush barriers [pid 5211] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5211] <... openat resumed>) = 4 [pid 5211] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0) = 0x20000000 [pid 5211] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5211] exit_group(0 [pid 4998] lstat("./17/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4998] unlink("./17/binderfs") = 0 [pid 4998] umount2("./17/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5211] <... exit_group resumed>) = ? [ 93.046030][ T5215] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 93.055496][ T5214] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 93.059647][ T5215] REISERFS (device loop1): found reiserfs format "3.5" with non-standard journal [ 93.082307][ T5215] REISERFS (device loop1): using ordered data mode [ 93.089951][ T5215] reiserfs: using flush barriers [pid 5211] +++ exited with 0 +++ [pid 4995] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5211, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 4995] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 4995] umount2("./17", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4995] openat(AT_FDCWD, "./17", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 4995] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4995] getdents64(3, 0x555557087620 /* 4 entries */, 32768) = 112 [pid 4995] umount2("./17/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4995] lstat("./17/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4995] unlink("./17/binderfs") = 0 [ 93.106400][ T5215] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 93.106512][ T5214] REISERFS (device loop4): found reiserfs format "3.5" with non-standard journal [ 93.132473][ T5214] REISERFS (device loop4): using ordered data mode [ 93.139548][ T5214] reiserfs: using flush barriers [ 93.146186][ T5214] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 93.167921][ T5216] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 93.178965][ T5212] REISERFS (device loop5): using ordered data mode [ 93.191659][ T5214] REISERFS (device loop4): checking transaction log (loop4) [pid 4995] umount2("./17/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] <... umount2 resumed>) = 0 [ 93.200341][ T5215] REISERFS (device loop1): checking transaction log (loop1) [ 93.208792][ T5212] reiserfs: using flush barriers [ 93.223821][ T5212] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 93.235791][ T5216] REISERFS (device loop2): checking transaction log (loop2) [ 93.241591][ T5214] REISERFS (device loop4): Using tea hash to sort names [pid 5216] <... mount resumed>) = 0 [pid 4998] umount2("./17/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5216] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5216] <... openat resumed>) = 3 [pid 4998] lstat("./17/file0", [pid 5216] chdir("./file0" [pid 4998] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5216] <... chdir resumed>) = 0 [pid 5216] ioctl(4, LOOP_CLR_FD [ 93.248952][ T5216] REISERFS (device loop2): Using tea hash to sort names [ 93.261983][ T5215] REISERFS (device loop1): Using tea hash to sort names [ 93.262366][ T5216] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 93.279289][ T5212] REISERFS (device loop5): checking transaction log (loop5) [ 93.290266][ T5212] REISERFS (device loop5): Using tea hash to sort names [ 93.298345][ T5212] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 4998] umount2("./17/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5216] <... ioctl resumed>) = 0 [pid 5212] <... mount resumed>) = 0 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5216] close(4 [pid 5212] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 4998] openat(AT_FDCWD, "./17/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5216] <... close resumed>) = 0 [pid 5215] <... mount resumed>) = 0 [pid 5214] <... mount resumed>) = 0 [pid 5212] <... openat resumed>) = 3 [pid 5216] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5215] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5214] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5212] chdir("./file0" [pid 4998] <... openat resumed>) = 4 [pid 5216] <... openat resumed>) = 4 [pid 5215] <... openat resumed>) = 3 [pid 5214] <... openat resumed>) = 3 [pid 5216] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 5215] chdir("./file0" [pid 5214] chdir("./file0" [pid 5212] <... chdir resumed>) = 0 [pid 4998] fstat(4, [pid 5216] <... mmap resumed>) = 0x20000000 [pid 5216] ioctl(4, FS_IOC_GETVERSION [pid 5215] <... chdir resumed>) = 0 [pid 5214] <... chdir resumed>) = 0 [pid 5212] ioctl(4, LOOP_CLR_FD [pid 4998] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5216] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5215] ioctl(4, LOOP_CLR_FD [pid 5214] ioctl(4, LOOP_CLR_FD [pid 5212] <... ioctl resumed>) = 0 [pid 5216] exit_group(0 [pid 5215] <... ioctl resumed>) = 0 [pid 5214] <... ioctl resumed>) = 0 [pid 5212] close(4 [pid 4998] getdents64(4, [pid 4995] <... umount2 resumed>) = 0 [pid 5216] <... exit_group resumed>) = ? [pid 5215] close(4 [pid 5214] close(4 [pid 5212] <... close resumed>) = 0 [pid 4998] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 5216] +++ exited with 0 +++ [pid 5215] <... close resumed>) = 0 [pid 5214] <... close resumed>) = 0 [pid 5212] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4998] getdents64(4, [pid 4995] umount2("./17/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5215] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5214] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5212] <... openat resumed>) = 4 [pid 4998] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 5215] <... openat resumed>) = 4 [pid 5214] <... openat resumed>) = 4 [pid 5212] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 4998] close(4 [pid 4995] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5215] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 5214] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 5212] <... mmap resumed>) = 0x20000000 [pid 4998] <... close resumed>) = 0 [pid 4997] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5216, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- [pid 4995] lstat("./17/file0", [pid 5215] <... mmap resumed>) = 0x20000000 [pid 5214] <... mmap resumed>) = 0x20000000 [pid 5212] ioctl(4, FS_IOC_GETVERSION [pid 4998] rmdir("./17/file0" [pid 4997] umount2("./17", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4995] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5215] ioctl(4, FS_IOC_GETVERSION [pid 5214] ioctl(4, FS_IOC_GETVERSION [pid 5212] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 4998] <... rmdir resumed>) = 0 [pid 4997] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4995] umount2("./17/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5215] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [ 93.305165][ T5215] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 93.309183][ T5214] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [pid 5214] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5212] exit_group(0 [pid 4998] getdents64(3, [pid 4997] openat(AT_FDCWD, "./17", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4995] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5215] exit_group(0 [pid 5214] exit_group(0 [pid 5212] <... exit_group resumed>) = ? [pid 4998] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 4997] <... openat resumed>) = 3 [pid 4995] openat(AT_FDCWD, "./17/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5215] <... exit_group resumed>) = ? [pid 5214] <... exit_group resumed>) = ? [pid 5212] +++ exited with 0 +++ [pid 4998] close(3 [pid 4997] fstat(3, [pid 5215] +++ exited with 0 +++ [pid 5214] +++ exited with 0 +++ [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5212, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} --- [pid 4998] <... close resumed>) = 0 [pid 4997] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4995] <... openat resumed>) = 4 [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5214, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=13 /* 0.13 s */} --- [pid 4997] getdents64(3, [pid 4998] rmdir("./17" [pid 4997] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 4995] fstat(4, [pid 4997] umount2("./17/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] umount2("./18", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4997] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4997] lstat("./17/binderfs", [pid 4999] openat(AT_FDCWD, "./18", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4997] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4999] <... openat resumed>) = 3 [pid 4998] <... rmdir resumed>) = 0 [pid 4997] unlink("./17/binderfs" [pid 4996] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5215, si_uid=0, si_status=0, si_utime=0, si_stime=22 /* 0.22 s */} --- [pid 4995] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] umount2("./16", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] fstat(3, [pid 4998] mkdir("./18", 0777 [pid 4996] restart_syscall(<... resuming interrupted clone ...> [pid 4995] getdents64(4, [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] <... mkdir resumed>) = 0 [pid 4997] <... unlink resumed>) = 0 [pid 4996] <... restart_syscall resumed>) = 0 [pid 4995] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 5000] openat(AT_FDCWD, "./16", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4999] getdents64(3, [pid 4998] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4997] umount2("./17/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4995] getdents64(4, [pid 5000] <... openat resumed>) = 3 [pid 4999] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 4998] <... openat resumed>) = 3 [pid 4995] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 5000] fstat(3, [pid 4999] umount2("./18/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] ioctl(3, LOOP_CLR_FD [pid 4996] umount2("./17", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4995] close(4 [pid 5000] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4996] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4995] <... close resumed>) = 0 [pid 5000] getdents64(3, [pid 4998] close(3 [pid 4996] openat(AT_FDCWD, "./17", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4995] rmdir("./17/file0" [pid 5000] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 4999] lstat("./18/binderfs", [pid 4998] <... close resumed>) = 0 [pid 4996] <... openat resumed>) = 3 [pid 4995] <... rmdir resumed>) = 0 [pid 5000] umount2("./16/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4996] fstat(3, [pid 4995] getdents64(3, [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4996] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4995] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 5000] lstat("./16/binderfs", [pid 4999] unlink("./18/binderfs" [pid 4998] <... clone resumed>, child_tidptr=0x5555570865d0) = 5223 [pid 4996] getdents64(3, [pid 4995] close(3 [pid 5000] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4999] <... unlink resumed>) = 0 [pid 4996] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 4995] <... close resumed>) = 0 [pid 5000] unlink("./16/binderfs" [pid 4999] umount2("./18/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4996] umount2("./17/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4995] rmdir("./17" [pid 5000] <... unlink resumed>) = 0 [pid 4996] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4995] <... rmdir resumed>) = 0 [pid 5000] umount2("./16/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4996] lstat("./17/binderfs", [pid 4995] mkdir("./18", 0777 [pid 4996] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4995] <... mkdir resumed>) = 0 [pid 4996] unlink("./17/binderfs" [pid 4995] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4996] <... unlink resumed>) = 0 [pid 4995] <... openat resumed>) = 3 [pid 4996] umount2("./17/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4995] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 4995] close(3) = 0 [pid 4995] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570865d0) = 5224 ./strace-static-x86_64: Process 5224 attached ./strace-static-x86_64: Process 5223 attached [pid 5223] chdir("./18") = 0 [pid 5223] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5223] setpgid(0, 0) = 0 [pid 5224] chdir("./18" [pid 5223] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5224] <... chdir resumed>) = 0 [pid 5224] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5223] <... openat resumed>) = 3 [pid 5224] <... prctl resumed>) = 0 [pid 5223] write(3, "1000", 4 [pid 5224] setpgid(0, 0) = 0 [pid 5223] <... write resumed>) = 4 [pid 5224] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5223] close(3 [pid 5224] <... openat resumed>) = 3 [pid 5223] <... close resumed>) = 0 [pid 5224] write(3, "1000", 4) = 4 [pid 5223] symlink("/dev/binderfs", "./binderfs" [pid 5224] close(3) = 0 [pid 5224] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5223] <... symlink resumed>) = 0 [pid 5224] memfd_create("syzkaller", 0 [pid 5223] memfd_create("syzkaller", 0 [pid 5224] <... memfd_create resumed>) = 3 [pid 5224] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5223] <... memfd_create resumed>) = 3 [pid 5224] <... mmap resumed>) = 0x7faaa11e5000 [pid 5223] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7faaa11e5000 [pid 4997] <... umount2 resumed>) = 0 [pid 4999] <... umount2 resumed>) = 0 [pid 4999] umount2("./18/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] lstat("./18/file0", [pid 4997] umount2("./17/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4997] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] umount2("./18/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4997] lstat("./17/file0", [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4997] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] openat(AT_FDCWD, "./18/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4997] umount2("./17/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] <... openat resumed>) = 4 [pid 4997] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] fstat(4, [pid 4997] openat(AT_FDCWD, "./17/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4999] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4997] <... openat resumed>) = 4 [pid 4999] getdents64(4, [pid 4997] fstat(4, [pid 4999] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4997] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] getdents64(4, [pid 4997] getdents64(4, [pid 4999] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4997] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4999] close(4 [pid 4997] getdents64(4, [pid 4999] <... close resumed>) = 0 [pid 4997] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4999] rmdir("./18/file0" [pid 4997] close(4 [pid 4996] <... umount2 resumed>) = 0 [pid 4999] <... rmdir resumed>) = 0 [pid 5000] <... umount2 resumed>) = 0 [pid 4999] getdents64(3, [pid 4997] <... close resumed>) = 0 [pid 4996] umount2("./17/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5223] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5000] umount2("./16/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 4997] rmdir("./17/file0" [pid 4996] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4996] lstat("./17/file0", [pid 5000] lstat("./16/file0", [pid 4999] close(3 [pid 4997] <... rmdir resumed>) = 0 [pid 4996] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] <... close resumed>) = 0 [pid 4997] getdents64(3, [pid 4996] umount2("./17/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] umount2("./16/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] rmdir("./18" [pid 4996] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4997] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 4996] openat(AT_FDCWD, "./17/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5000] openat(AT_FDCWD, "./16/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4999] <... rmdir resumed>) = 0 [pid 4997] close(3 [pid 4996] <... openat resumed>) = 4 [pid 5000] <... openat resumed>) = 4 [pid 4996] fstat(4, [pid 5000] fstat(4, [pid 4996] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4996] getdents64(4, [pid 5000] getdents64(4, [pid 4996] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [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 [pid 5000] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4996] getdents64(4, [pid 5000] getdents64(4, [pid 4996] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 5000] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4996] close(4 [pid 5000] close(4 [pid 4996] <... close resumed>) = 0 [pid 5000] <... close resumed>) = 0 [pid 4996] rmdir("./17/file0" [pid 5000] rmdir("./16/file0" [pid 4999] mkdir("./19", 0777 [pid 4997] <... close resumed>) = 0 [pid 4996] <... rmdir resumed>) = 0 [pid 5000] <... rmdir resumed>) = 0 [pid 4999] <... mkdir resumed>) = 0 [pid 4997] rmdir("./17" [pid 4996] getdents64(3, [pid 5000] getdents64(3, [pid 4999] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4996] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 5000] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 4997] <... rmdir resumed>) = 0 [pid 4996] close(3 [pid 4999] <... openat resumed>) = 3 [pid 5000] close(3 [pid 4999] ioctl(3, LOOP_CLR_FD [pid 4997] mkdir("./18", 0777 [pid 4996] <... close resumed>) = 0 [pid 5000] <... close resumed>) = 0 [pid 4999] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4996] rmdir("./17" [pid 5000] rmdir("./16" [pid 4999] close(3 [pid 4997] <... mkdir resumed>) = 0 [pid 4996] <... rmdir resumed>) = 0 [pid 5000] <... rmdir resumed>) = 0 [pid 4999] <... close resumed>) = 0 [pid 4997] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4996] mkdir("./18", 0777 [pid 5000] mkdir("./17", 0777 [pid 4999] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4997] <... openat resumed>) = 3 [pid 4996] <... mkdir resumed>) = 0 [pid 5000] <... mkdir resumed>) = 0 [pid 4996] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5000] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4996] <... openat resumed>) = 3 [pid 5000] <... openat resumed>) = 3 [pid 4997] ioctl(3, LOOP_CLR_FD [pid 4996] ioctl(3, LOOP_CLR_FD [pid 5000] ioctl(3, LOOP_CLR_FD [pid 4999] <... clone resumed>, child_tidptr=0x5555570865d0) = 5225 [pid 4997] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4996] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5000] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4997] close(3 [pid 4996] close(3 [pid 5000] close(3 [pid 4997] <... close resumed>) = 0 [pid 4996] <... close resumed>) = 0 [pid 5000] <... close resumed>) = 0 [pid 4996] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5000] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4997] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4996] <... clone resumed>, child_tidptr=0x5555570865d0) = 5226 ./strace-static-x86_64: Process 5226 attached [pid 5000] <... clone resumed>, child_tidptr=0x5555570865d0) = 5227 [pid 4997] <... clone resumed>, child_tidptr=0x5555570865d0) = 5228 ./strace-static-x86_64: Process 5225 attached [pid 5225] chdir("./19") = 0 [pid 5225] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5226] chdir("./18" [pid 5225] <... prctl resumed>) = 0 [pid 5226] <... chdir resumed>) = 0 [pid 5226] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5225] setpgid(0, 0./strace-static-x86_64: Process 5227 attached [pid 5226] <... prctl resumed>) = 0 [pid 5225] <... setpgid resumed>) = 0 [pid 5226] setpgid(0, 0) = 0 [pid 5225] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5227] chdir("./17" [pid 5226] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5225] <... openat resumed>) = 3 [pid 5227] <... chdir resumed>) = 0 [pid 5226] <... openat resumed>) = 3 [pid 5225] write(3, "1000", 4 [pid 5226] write(3, "1000", 4 [pid 5225] <... write resumed>) = 4 [pid 5227] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 5228 attached [pid 5226] <... write resumed>) = 4 [pid 5225] close(3 [pid 5228] chdir("./18" [pid 5227] <... prctl resumed>) = 0 [pid 5226] close(3 [pid 5225] <... close resumed>) = 0 [pid 5228] <... chdir resumed>) = 0 [pid 5227] setpgid(0, 0 [pid 5226] <... close resumed>) = 0 [pid 5225] symlink("/dev/binderfs", "./binderfs" [pid 5228] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5227] <... setpgid resumed>) = 0 [pid 5226] symlink("/dev/binderfs", "./binderfs" [pid 5228] <... prctl resumed>) = 0 [pid 5227] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5226] <... symlink resumed>) = 0 [pid 5225] <... symlink resumed>) = 0 [pid 5228] setpgid(0, 0 [pid 5227] <... openat resumed>) = 3 [pid 5226] memfd_create("syzkaller", 0 [pid 5228] <... setpgid resumed>) = 0 [pid 5227] write(3, "1000", 4 [pid 5226] <... memfd_create resumed>) = 3 [pid 5225] memfd_create("syzkaller", 0 [pid 5228] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5227] <... write resumed>) = 4 [pid 5226] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5225] <... memfd_create resumed>) = 3 [pid 5228] <... openat resumed>) = 3 [pid 5227] close(3 [pid 5226] <... mmap resumed>) = 0x7faaa11e5000 [pid 5225] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5228] write(3, "1000", 4 [pid 5227] <... close resumed>) = 0 [pid 5228] <... write resumed>) = 4 [pid 5228] close(3 [pid 5225] <... mmap resumed>) = 0x7faaa11e5000 [pid 5228] <... close resumed>) = 0 [pid 5227] symlink("/dev/binderfs", "./binderfs" [pid 5228] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5227] <... symlink resumed>) = 0 [pid 5228] memfd_create("syzkaller", 0) = 3 [pid 5228] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7faaa11e5000 [pid 5227] memfd_create("syzkaller", 0) = 3 [pid 5227] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7faaa11e5000 [pid 5223] <... write resumed>) = 4194304 [pid 5223] munmap(0x7faaa11e5000, 4194304) = 0 [pid 5223] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 5223] ioctl(4, LOOP_SET_FD, 3 [pid 5224] <... write resumed>) = 4194304 [pid 5223] <... ioctl resumed>) = 0 [pid 5223] close(3) = 0 [pid 5226] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5223] mkdir("./file0", 0777) = 0 [pid 5223] mount("/dev/loop3", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5224] munmap(0x7faaa11e5000, 4194304) = 0 [pid 5224] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [ 93.737894][ T5223] loop3: detected capacity change from 0 to 8192 [pid 5224] ioctl(4, LOOP_SET_FD, 3 [pid 5227] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5225] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5228] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5227] <... write resumed>) = 4194304 [pid 5224] <... ioctl resumed>) = 0 [pid 5227] munmap(0x7faaa11e5000, 4194304 [pid 5224] close(3 [pid 5227] <... munmap resumed>) = 0 [pid 5224] <... close resumed>) = 0 [pid 5227] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5224] mkdir("./file0", 0777) = 0 [pid 5227] <... openat resumed>) = 4 [ 93.775566][ T5223] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 93.783443][ T5224] loop0: detected capacity change from 0 to 8192 [ 93.792795][ T5223] REISERFS (device loop3): found reiserfs format "3.5" with non-standard journal [ 93.816959][ T5223] REISERFS (device loop3): using ordered data mode [pid 5224] mount("/dev/loop0", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5227] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5227] close(3) = 0 [pid 5227] mkdir("./file0", 0777) = 0 [ 93.853929][ T5223] reiserfs: using flush barriers [ 93.860109][ T5227] loop5: detected capacity change from 0 to 8192 [ 93.886029][ T5224] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5227] mount("/dev/loop5", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5225] <... write resumed>) = 4194304 [pid 5226] <... write resumed>) = 4194304 [pid 5225] munmap(0x7faaa11e5000, 4194304) = 0 [pid 5226] munmap(0x7faaa11e5000, 4194304 [pid 5225] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [ 93.900702][ T5223] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 93.926029][ T5227] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 93.928008][ T5224] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [pid 5225] ioctl(4, LOOP_SET_FD, 3 [pid 5226] <... munmap resumed>) = 0 [pid 5226] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5226] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5225] <... ioctl resumed>) = 0 [pid 5226] close(3 [ 93.951616][ T5225] loop4: detected capacity change from 0 to 8192 [ 93.952047][ T5224] REISERFS (device loop0): using ordered data mode [ 93.959013][ T5227] REISERFS (device loop5): found reiserfs format "3.5" with non-standard journal [ 93.965689][ T5224] reiserfs: using flush barriers [ 93.979968][ T5226] loop1: detected capacity change from 0 to 8192 [ 93.980260][ T5223] REISERFS (device loop3): checking transaction log (loop3) [ 93.988244][ T5227] REISERFS (device loop5): using ordered data mode [pid 5225] close(3 [pid 5228] <... write resumed>) = 4194304 [pid 5226] <... close resumed>) = 0 [pid 5225] <... close resumed>) = 0 [pid 5228] munmap(0x7faaa11e5000, 4194304 [ 94.001089][ 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 [ 94.001731][ T5227] reiserfs: using flush barriers [ 94.023454][ T5223] REISERFS (device loop3): Using tea hash to sort names [ 94.026470][ T5224] REISERFS (device loop0): checking transaction log (loop0) [ 94.035121][ T5223] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [pid 5226] mkdir("./file0", 0777 [pid 5228] <... munmap resumed>) = 0 [pid 5226] <... mkdir resumed>) = 0 [pid 5225] mkdir("./file0", 0777 [pid 5228] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5226] mount("/dev/loop1", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5225] <... mkdir resumed>) = 0 [pid 5223] <... mount resumed>) = 0 [pid 5228] <... openat resumed>) = 4 [pid 5225] mount("/dev/loop4", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5223] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5228] ioctl(4, LOOP_SET_FD, 3 [pid 5223] <... openat resumed>) = 3 [pid 5228] <... ioctl resumed>) = 0 [pid 5228] close(3) = 0 [pid 5228] mkdir("./file0", 0777) = 0 [pid 5228] mount("/dev/loop2", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5224] <... mount resumed>) = 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 [ 94.038797][ T5227] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 94.049847][ T5224] REISERFS (device loop0): Using tea hash to sort names [ 94.065301][ T5227] REISERFS (device loop5): checking transaction log (loop5) [ 94.072667][ T5224] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 94.080513][ T5228] loop2: detected capacity change from 0 to 8192 [pid 5224] close(4 [pid 5223] chdir("./file0" [pid 5224] <... close resumed>) = 0 [pid 5223] <... chdir resumed>) = 0 [pid 5223] ioctl(4, LOOP_CLR_FD) = 0 [pid 5223] close(4) = 0 [ 94.088867][ T5226] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 94.108356][ T5227] REISERFS (device loop5): Using tea hash to sort names [ 94.115996][ T5226] REISERFS (device loop1): found reiserfs format "3.5" with non-standard journal [ 94.117002][ T5225] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 94.126624][ T5226] REISERFS (device loop1): using ordered data mode [pid 5223] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5223] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0) = 0x20000000 [pid 5223] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5223] exit_group(0) = ? [pid 5223] +++ exited with 0 +++ [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5223, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=13 /* 0.13 s */} --- [pid 4998] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 4998] umount2("./18", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./18", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 4998] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] getdents64(3, [pid 5224] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4998] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 5224] <... openat resumed>) = 4 [pid 4998] umount2("./18/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./18/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4998] unlink("./18/binderfs") = 0 [pid 4998] umount2("./18/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5227] <... mount resumed>) = 0 [pid 5224] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 5227] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5224] <... mmap resumed>) = 0x20000000 [pid 5227] <... openat resumed>) = 3 [pid 5224] ioctl(4, FS_IOC_GETVERSION [pid 5227] chdir("./file0" [pid 5224] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5227] <... chdir resumed>) = 0 [pid 5227] ioctl(4, LOOP_CLR_FD [pid 5224] exit_group(0 [pid 5227] <... ioctl resumed>) = 0 [ 94.147020][ T5228] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 94.160420][ T5226] reiserfs: using flush barriers [ 94.160690][ T5227] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 94.175356][ T5225] REISERFS (device loop4): found reiserfs format "3.5" with non-standard journal [ 94.185202][ T5225] REISERFS (device loop4): using ordered data mode [ 94.189167][ T5228] REISERFS (device loop2): found reiserfs format "3.5" with non-standard journal [pid 5227] close(4 [pid 5224] <... exit_group resumed>) = ? [pid 5227] <... close resumed>) = 0 [pid 5224] +++ exited with 0 +++ [ 94.192101][ T5225] reiserfs: using flush barriers [ 94.216827][ T5225] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 94.222859][ T5228] REISERFS (device loop2): using ordered data mode [ 94.239933][ T5228] reiserfs: using flush barriers [pid 5227] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4995] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5224, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=21 /* 0.21 s */} --- [pid 4995] umount2("./18", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4995] openat(AT_FDCWD, "./18", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 4995] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4995] getdents64(3, 0x555557087620 /* 4 entries */, 32768) = 112 [pid 4995] umount2("./18/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4995] lstat("./18/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4995] unlink("./18/binderfs") = 0 [pid 4995] umount2("./18/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5227] <... openat resumed>) = 4 [pid 5227] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0) = 0x20000000 [pid 5227] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5227] exit_group(0) = ? [pid 5227] +++ exited with 0 +++ [ 94.245159][ T5226] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 94.268138][ T5225] REISERFS (device loop4): checking transaction log (loop4) [ 94.268548][ T5228] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 94.283821][ T5226] REISERFS (device loop1): checking transaction log (loop1) [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5227, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=16 /* 0.16 s */} --- [pid 5000] umount2("./17", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./17", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5000] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] getdents64(3, 0x555557087620 /* 4 entries */, 32768) = 112 [pid 5000] umount2("./17/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./17/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] unlink("./17/binderfs") = 0 [pid 5000] umount2("./17/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5225] <... mount resumed>) = 0 [pid 4998] <... umount2 resumed>) = 0 [pid 5225] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 4998] umount2("./18/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./18/file0", [pid 5225] <... openat resumed>) = 3 [pid 4998] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [ 94.308636][ T5225] REISERFS (device loop4): Using tea hash to sort names [ 94.308732][ T5228] REISERFS (device loop2): checking transaction log (loop2) [ 94.336649][ T5225] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [pid 4998] umount2("./18/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5225] chdir("./file0" [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./18/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5225] <... chdir resumed>) = 0 [pid 4998] <... openat resumed>) = 4 [pid 4998] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] getdents64(4, 0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4998] getdents64(4, 0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4998] close(4) = 0 [pid 4998] rmdir("./18/file0" [pid 5225] ioctl(4, LOOP_CLR_FD [pid 4998] <... rmdir resumed>) = 0 [pid 4998] getdents64(3, [pid 5225] <... ioctl resumed>) = 0 [pid 4998] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 5225] close(4 [ 94.356637][ T5226] REISERFS (device loop1): Using tea hash to sort names [ 94.364044][ T5226] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 94.395080][ T5228] REISERFS (device loop2): Using tea hash to sort names [pid 4998] close(3 [pid 5226] <... mount resumed>) = 0 [pid 5225] <... close resumed>) = 0 [pid 5000] <... umount2 resumed>) = 0 [pid 4998] <... close resumed>) = 0 [pid 5226] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5225] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5000] umount2("./17/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] rmdir("./18" [pid 5226] <... openat resumed>) = 3 [pid 5226] chdir("./file0" [pid 5225] <... openat resumed>) = 4 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] <... rmdir resumed>) = 0 [pid 5226] <... chdir resumed>) = 0 [pid 5225] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 5000] lstat("./17/file0", [pid 4998] mkdir("./19", 0777 [pid 5226] ioctl(4, LOOP_CLR_FD [pid 5225] <... mmap resumed>) = 0x20000000 [pid 5000] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] <... mkdir resumed>) = 0 [pid 5226] <... ioctl resumed>) = 0 [pid 5225] ioctl(4, FS_IOC_GETVERSION [pid 5000] umount2("./17/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5226] close(4 [pid 5225] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5226] <... close resumed>) = 0 [pid 5000] openat(AT_FDCWD, "./17/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4998] <... openat resumed>) = 3 [pid 5226] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5225] exit_group(0 [pid 5000] <... openat resumed>) = 4 [pid 4998] ioctl(3, LOOP_CLR_FD [pid 5226] <... openat resumed>) = 4 [pid 5225] <... exit_group resumed>) = ? [pid 5000] fstat(4, [pid 4998] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5226] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 5225] +++ exited with 0 +++ [pid 5000] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] close(3 [pid 5226] <... mmap resumed>) = 0x20000000 [pid 5000] getdents64(4, [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5225, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 4999] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 4999] umount2("./19", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./19", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 4999] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] getdents64(3, 0x555557087620 /* 4 entries */, 32768) = 112 [pid 4999] umount2("./19/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] lstat("./19/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5226] ioctl(4, FS_IOC_GETVERSION [pid 5000] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4999] unlink("./19/binderfs" [pid 4998] <... close resumed>) = 0 [pid 5226] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5000] getdents64(4, [pid 4999] <... unlink resumed>) = 0 [pid 4998] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5226] exit_group(0 [pid 5000] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [ 94.402392][ T5228] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 4999] umount2("./19/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5235 attached [pid 5228] <... mount resumed>) = 0 [pid 5226] <... exit_group resumed>) = ? [pid 5000] close(4 [pid 4995] <... umount2 resumed>) = 0 [pid 5235] chdir("./19") = 0 [pid 5226] +++ exited with 0 +++ [pid 5000] <... close resumed>) = 0 [pid 4998] <... clone resumed>, child_tidptr=0x5555570865d0) = 5235 [pid 5228] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 4995] umount2("./18/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5235] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5000] rmdir("./17/file0" [pid 4996] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5226, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- [pid 4995] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5235] <... prctl resumed>) = 0 [pid 5228] <... openat resumed>) = 3 [pid 5235] setpgid(0, 0 [pid 5228] chdir("./file0" [pid 5000] <... rmdir resumed>) = 0 [pid 4995] lstat("./18/file0", [pid 5235] <... setpgid resumed>) = 0 [pid 5000] getdents64(3, [pid 4995] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5235] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5000] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 4995] umount2("./18/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] close(3 [pid 4996] umount2("./18", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4995] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5235] <... openat resumed>) = 3 [pid 5228] <... chdir resumed>) = 0 [pid 5000] <... close resumed>) = 0 [pid 4996] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4995] openat(AT_FDCWD, "./18/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5235] write(3, "1000", 4 [pid 5228] ioctl(4, LOOP_CLR_FD [pid 5000] rmdir("./17" [pid 4996] openat(AT_FDCWD, "./18", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5235] <... write resumed>) = 4 [pid 5228] <... ioctl resumed>) = 0 [pid 4995] <... openat resumed>) = 4 [pid 5235] close(3 [pid 5228] close(4 [pid 5000] <... rmdir resumed>) = 0 [pid 4996] <... openat resumed>) = 3 [pid 4995] fstat(4, [pid 5235] <... close resumed>) = 0 [pid 5228] <... close resumed>) = 0 [pid 5000] mkdir("./18", 0777 [pid 4996] fstat(3, [pid 4995] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5235] symlink("/dev/binderfs", "./binderfs" [pid 5228] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5000] <... mkdir resumed>) = 0 [pid 4996] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4995] getdents64(4, [pid 5235] <... symlink resumed>) = 0 [pid 5228] <... openat resumed>) = 4 [pid 5000] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4996] getdents64(3, [pid 4995] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 5235] memfd_create("syzkaller", 0 [pid 5228] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 5000] <... openat resumed>) = 3 [pid 4996] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 4995] getdents64(4, [pid 5235] <... memfd_create resumed>) = 3 [pid 5228] <... mmap resumed>) = 0x20000000 [pid 5000] ioctl(3, LOOP_CLR_FD [pid 4996] umount2("./18/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4995] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 5235] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5228] ioctl(4, FS_IOC_GETVERSION [pid 5000] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4996] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4995] close(4 [pid 5235] <... mmap resumed>) = 0x7faaa11e5000 [pid 5228] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5000] close(3 [pid 4996] lstat("./18/binderfs", [pid 4995] <... close resumed>) = 0 [pid 5228] exit_group(0 [pid 5000] <... close resumed>) = 0 [pid 4996] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4995] rmdir("./18/file0" [pid 5228] <... exit_group resumed>) = ? [pid 5000] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4996] unlink("./18/binderfs" [pid 4995] <... rmdir resumed>) = 0 [pid 5228] +++ exited with 0 +++ [pid 4996] <... unlink resumed>) = 0 [pid 4995] getdents64(3, [pid 5000] <... clone resumed>, child_tidptr=0x5555570865d0) = 5236 [pid 4997] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5228, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=17 /* 0.17 s */} --- [pid 4996] umount2("./18/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4995] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 4995] close(3) = 0 [pid 4995] rmdir("./18") = 0 [pid 4995] mkdir("./19", 0777 [pid 4997] umount2("./18", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4995] <... mkdir resumed>) = 0 [pid 4997] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4995] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4997] openat(AT_FDCWD, "./18", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4995] <... openat resumed>) = 3 [pid 4997] <... openat resumed>) = 3 [pid 4995] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 5236 attached [pid 4997] fstat(3, [pid 4995] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5236] chdir("./18" [pid 4997] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4995] close(3 [pid 5236] <... chdir resumed>) = 0 [pid 4997] getdents64(3, [pid 4995] <... close resumed>) = 0 [pid 5236] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4997] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 4995] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5236] <... prctl resumed>) = 0 [pid 4997] umount2("./18/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5236] setpgid(0, 0 [pid 4997] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4995] <... clone resumed>, child_tidptr=0x5555570865d0) = 5237 [pid 5236] <... setpgid resumed>) = 0 [pid 4997] lstat("./18/binderfs", [pid 5236] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4997] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5236] <... openat resumed>) = 3 [pid 4997] unlink("./18/binderfs" [pid 5236] write(3, "1000", 4 [pid 4997] <... unlink resumed>) = 0 [pid 5236] <... write resumed>) = 4 [pid 4997] umount2("./18/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5236] close(3./strace-static-x86_64: Process 5237 attached ) = 0 [pid 5237] chdir("./19" [pid 5236] symlink("/dev/binderfs", "./binderfs" [pid 5237] <... chdir resumed>) = 0 [pid 5236] <... symlink resumed>) = 0 [pid 5237] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5236] memfd_create("syzkaller", 0 [pid 5237] <... prctl resumed>) = 0 [pid 5236] <... memfd_create resumed>) = 3 [pid 5237] setpgid(0, 0 [pid 5236] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5237] <... setpgid resumed>) = 0 [pid 5236] <... mmap resumed>) = 0x7faaa11e5000 [pid 5237] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5237] write(3, "1000", 4) = 4 [pid 5237] close(3) = 0 [pid 5237] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5237] memfd_create("syzkaller", 0) = 3 [pid 5237] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7faaa11e5000 [pid 4999] <... umount2 resumed>) = 0 [pid 4999] umount2("./19/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] lstat("./19/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5235] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 4999] umount2("./19/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4996] <... umount2 resumed>) = 0 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./19/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 4996] umount2("./18/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] fstat(4, [pid 4996] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4996] lstat("./18/file0", [pid 4999] getdents64(4, 0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4996] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] getdents64(4, [pid 4996] umount2("./18/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4996] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] close(4 [pid 4996] openat(AT_FDCWD, "./18/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4999] <... close resumed>) = 0 [pid 4996] <... openat resumed>) = 4 [pid 4999] rmdir("./19/file0" [pid 4996] fstat(4, [pid 4999] <... rmdir resumed>) = 0 [pid 4996] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] getdents64(3, [pid 4996] getdents64(4, [pid 4999] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 4996] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4999] close(3 [pid 4996] getdents64(4, [pid 4999] <... close resumed>) = 0 [pid 4996] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4999] rmdir("./19" [pid 4996] close(4 [pid 4999] <... rmdir resumed>) = 0 [pid 4999] mkdir("./20", 0777 [pid 4996] <... close resumed>) = 0 [pid 4999] <... mkdir resumed>) = 0 [pid 4996] rmdir("./18/file0") = 0 [pid 4996] getdents64(3, [pid 4999] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4997] <... umount2 resumed>) = 0 [pid 4996] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 4999] <... openat resumed>) = 3 [pid 4996] close(3 [pid 4999] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 4996] <... close resumed>) = 0 [pid 4999] close(3 [pid 4996] rmdir("./18" [pid 4999] <... close resumed>) = 0 [pid 4999] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4996] <... rmdir resumed>) = 0 [pid 4996] mkdir("./19", 0777 [pid 4999] <... clone resumed>, child_tidptr=0x5555570865d0) = 5238 [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 [pid 4996] <... mkdir resumed>) = 0 [pid 4996] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 4996] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 5238 attached ) = -1 ENXIO (No such device or address) [pid 4996] close(3) = 0 [pid 4996] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5238] chdir("./20" [pid 4996] <... clone resumed>, child_tidptr=0x5555570865d0) = 5239 [pid 5238] <... chdir resumed>) = 0 [pid 5238] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5238] setpgid(0, 0) = 0 ./strace-static-x86_64: Process 5239 attached [pid 5239] chdir("./19" [pid 5238] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5239] <... chdir resumed>) = 0 [pid 4997] umount2("./18/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5239] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5238] <... openat resumed>) = 3 [pid 4997] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5239] <... prctl resumed>) = 0 [pid 5238] write(3, "1000", 4 [pid 4997] lstat("./18/file0", [pid 5239] setpgid(0, 0 [pid 5238] <... write resumed>) = 4 [pid 4997] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5239] <... setpgid resumed>) = 0 [pid 5238] close(3 [pid 5237] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 4997] umount2("./18/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5239] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5238] <... close resumed>) = 0 [pid 4997] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5239] <... openat resumed>) = 3 [pid 5238] symlink("/dev/binderfs", "./binderfs" [pid 4997] openat(AT_FDCWD, "./18/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5239] write(3, "1000", 4 [pid 4997] <... openat resumed>) = 4 [pid 5239] <... write resumed>) = 4 [pid 5238] <... symlink resumed>) = 0 [pid 4997] fstat(4, [pid 5239] close(3 [pid 5238] memfd_create("syzkaller", 0 [pid 4997] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5239] <... close resumed>) = 0 [pid 5238] <... memfd_create resumed>) = 3 [pid 4997] getdents64(4, [pid 5239] symlink("/dev/binderfs", "./binderfs" [pid 5238] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 4997] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 5239] <... symlink resumed>) = 0 [pid 4997] getdents64(4, [pid 5239] memfd_create("syzkaller", 0 [pid 4997] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 5239] <... memfd_create resumed>) = 3 [pid 4997] close(4 [pid 5239] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5238] <... mmap resumed>) = 0x7faaa11e5000 [pid 4997] <... close resumed>) = 0 [pid 5239] <... mmap resumed>) = 0x7faaa11e5000 [pid 4997] rmdir("./18/file0") = 0 [pid 4997] getdents64(3, 0x555557087620 /* 0 entries */, 32768) = 0 [pid 4997] close(3) = 0 [pid 4997] rmdir("./18") = 0 [pid 4997] mkdir("./19", 0777) = 0 [pid 4997] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 4997] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 4997] close(3) = 0 [pid 4997] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570865d0) = 5240 ./strace-static-x86_64: Process 5240 attached [pid 5240] chdir("./19") = 0 [pid 5240] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5240] setpgid(0, 0) = 0 [pid 5240] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5240] write(3, "1000", 4) = 4 [pid 5240] close(3) = 0 [pid 5240] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5235] <... write resumed>) = 4194304 [pid 5240] memfd_create("syzkaller", 0) = 3 [pid 5240] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7faaa11e5000 [pid 5235] munmap(0x7faaa11e5000, 4194304 [pid 5238] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5235] <... munmap resumed>) = 0 [pid 5235] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5237] <... write resumed>) = 4194304 [pid 5235] <... openat resumed>) = 4 [pid 5235] ioctl(4, LOOP_SET_FD, 3 [pid 5237] munmap(0x7faaa11e5000, 4194304) = 0 [pid 5237] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5237] ioctl(4, LOOP_SET_FD, 3 [pid 5235] <... ioctl resumed>) = 0 [pid 5239] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5235] close(3) = 0 [pid 5235] mkdir("./file0", 0777) = 0 [pid 5235] mount("/dev/loop3", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5240] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5237] <... ioctl resumed>) = 0 [pid 5237] close(3) = 0 [pid 5237] mkdir("./file0", 0777) = 0 [pid 5236] <... write resumed>) = 4194304 [pid 5237] mount("/dev/loop0", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [ 94.846353][ T5235] loop3: detected capacity change from 0 to 8192 [ 94.864436][ T5237] loop0: detected capacity change from 0 to 8192 [ 94.880140][ T5235] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5236] munmap(0x7faaa11e5000, 4194304) = 0 [pid 5236] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 5236] ioctl(4, LOOP_SET_FD, 3 [pid 5238] <... write resumed>) = 4194304 [pid 5236] <... ioctl resumed>) = 0 [pid 5236] close(3 [pid 5238] munmap(0x7faaa11e5000, 4194304 [pid 5236] <... close resumed>) = 0 [pid 5238] <... munmap resumed>) = 0 [pid 5238] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5238] ioctl(4, LOOP_SET_FD, 3 [ 94.906939][ T5237] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 94.917495][ T5236] loop5: detected capacity change from 0 to 8192 [ 94.926824][ T5237] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 94.936560][ T5237] REISERFS (device loop0): using ordered data mode [ 94.943466][ T5237] reiserfs: using flush barriers [ 94.949568][ T5238] loop4: detected capacity change from 0 to 8192 [pid 5236] mkdir("./file0", 0777) = 0 [ 94.950672][ T5237] 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 [ 94.959463][ T5235] REISERFS (device loop3): found reiserfs format "3.5" with non-standard journal [ 94.973802][ T5237] REISERFS (device loop0): checking transaction log (loop0) [ 94.991609][ T5237] REISERFS (device loop0): Using tea hash to sort names [pid 5236] mount("/dev/loop5", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5238] <... ioctl resumed>) = 0 [pid 5238] close(3) = 0 [pid 5238] mkdir("./file0", 0777) = 0 [pid 5238] mount("/dev/loop4", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5237] <... mount resumed>) = 0 [pid 5237] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5239] <... write resumed>) = 4194304 [pid 5237] <... openat resumed>) = 3 [pid 5237] chdir("./file0") = 0 [ 94.999823][ T5237] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 95.009965][ T5236] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 95.024287][ T5238] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 95.037478][ T5236] REISERFS (device loop5): found reiserfs format "3.5" with non-standard journal [ 95.046903][ T5236] REISERFS (device loop5): using ordered data mode [pid 5237] ioctl(4, LOOP_CLR_FD) = 0 [pid 5237] close(4) = 0 [pid 5237] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5237] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 5240] <... write resumed>) = 4194304 [pid 5239] munmap(0x7faaa11e5000, 4194304 [ 95.053705][ T5236] reiserfs: using flush barriers [ 95.060759][ T5236] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 95.077646][ T5236] REISERFS (device loop5): checking transaction log (loop5) [ 95.085257][ T5235] REISERFS (device loop3): using ordered data mode [ 95.091968][ T5235] reiserfs: using flush barriers [ 95.098335][ T5238] REISERFS (device loop4): found reiserfs format "3.5" with non-standard journal [pid 5237] <... mmap resumed>) = 0x20000000 [pid 5237] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5237] exit_group(0) = ? [pid 5237] +++ exited with 0 +++ [pid 4995] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5237, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=18 /* 0.18 s */} --- [pid 4995] umount2("./19", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4995] openat(AT_FDCWD, "./19", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 4995] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4995] getdents64(3, 0x555557087620 /* 4 entries */, 32768) = 112 [pid 4995] umount2("./19/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5240] munmap(0x7faaa11e5000, 4194304 [pid 4995] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5239] <... munmap resumed>) = 0 [pid 4995] lstat("./19/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4995] unlink("./19/binderfs" [pid 5240] <... munmap resumed>) = 0 [pid 5239] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4995] <... unlink resumed>) = 0 [pid 5240] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5239] <... openat resumed>) = 4 [pid 4995] umount2("./19/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5240] <... openat resumed>) = 4 [ 95.107769][ T5235] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 95.124110][ T5236] REISERFS (device loop5): Using tea hash to sort names [ 95.138503][ T5236] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 95.141367][ T5238] REISERFS (device loop4): using ordered data mode [pid 5239] ioctl(4, LOOP_SET_FD, 3 [pid 5240] ioctl(4, LOOP_SET_FD, 3 [pid 5236] <... mount resumed>) = 0 [pid 5236] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5240] <... ioctl resumed>) = 0 [pid 5239] <... ioctl resumed>) = 0 [pid 5240] close(3 [pid 5239] close(3 [pid 5236] chdir("./file0" [pid 5240] <... close resumed>) = 0 [pid 5239] <... close resumed>) = 0 [pid 5236] <... chdir resumed>) = 0 [ 95.150441][ T5235] REISERFS (device loop3): checking transaction log (loop3) [ 95.157799][ T5238] reiserfs: using flush barriers [ 95.161921][ T5239] loop1: detected capacity change from 0 to 8192 [ 95.173724][ T5240] loop2: detected capacity change from 0 to 8192 [ 95.184706][ T5238] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 95.195071][ T5235] REISERFS (device loop3): Using tea hash to sort names [pid 5240] mkdir("./file0", 0777 [pid 5239] mkdir("./file0", 0777 [pid 5236] ioctl(4, LOOP_CLR_FD [pid 5240] <... mkdir resumed>) = 0 [pid 5239] <... mkdir resumed>) = 0 [pid 5240] mount("/dev/loop2", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5239] mount("/dev/loop1", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5236] <... ioctl resumed>) = 0 [pid 5236] close(4) = 0 [ 95.202012][ T5238] REISERFS (device loop4): checking transaction log (loop4) [ 95.216662][ T5235] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 95.221599][ T5240] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 95.226834][ T5238] REISERFS (device loop4): Using tea hash to sort names [pid 5236] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5236] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0) = 0x20000000 [pid 5236] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5236] exit_group(0) = ? [pid 5236] +++ exited with 0 +++ [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5236, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=15 /* 0.15 s */} --- [pid 5235] <... mount resumed>) = 0 [pid 5000] restart_syscall(<... resuming interrupted clone ...> [pid 5235] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5000] <... restart_syscall resumed>) = 0 [pid 5235] <... openat resumed>) = 3 [pid 5235] chdir("./file0" [pid 5000] umount2("./18", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5235] <... chdir resumed>) = 0 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5235] ioctl(4, LOOP_CLR_FD [pid 5000] openat(AT_FDCWD, "./18", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5235] <... ioctl resumed>) = 0 [pid 5000] <... openat resumed>) = 3 [pid 5238] <... mount resumed>) = 0 [pid 5238] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [ 95.250662][ T5240] REISERFS (device loop2): found reiserfs format "3.5" with non-standard journal [ 95.250994][ T5239] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 95.262358][ T5240] REISERFS (device loop2): using ordered data mode [ 95.283406][ T5240] reiserfs: using flush barriers [ 95.295644][ T5238] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [pid 5238] chdir("./file0") = 0 [pid 5238] ioctl(4, LOOP_CLR_FD) = 0 [pid 5238] close(4) = 0 [pid 5238] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5238] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0) = 0x20000000 [pid 5000] fstat(3, [pid 5235] close(4 [pid 5000] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5235] <... close resumed>) = 0 [pid 5000] getdents64(3, [pid 5235] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5000] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 5000] umount2("./18/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5235] <... openat resumed>) = 4 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./18/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] unlink("./18/binderfs") = 0 [pid 5000] umount2("./18/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5238] ioctl(4, FS_IOC_GETVERSION [pid 5235] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 5238] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5235] <... mmap resumed>) = 0x20000000 [pid 5235] ioctl(4, FS_IOC_GETVERSION [pid 5238] exit_group(0 [pid 5235] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5235] exit_group(0 [pid 5238] <... exit_group resumed>) = ? [pid 5235] <... exit_group resumed>) = ? [pid 5235] +++ exited with 0 +++ [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5235, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=11 /* 0.11 s */} --- [pid 4998] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5238] +++ exited with 0 +++ [ 95.304474][ T5240] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 95.325688][ T5239] REISERFS (device loop1): found reiserfs format "3.5" with non-standard journal [ 95.336982][ T5239] REISERFS (device loop1): using ordered data mode [ 95.345123][ T5239] reiserfs: using flush barriers [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5238, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=19 /* 0.19 s */} --- [pid 4998] umount2("./19", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] umount2("./20", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./19", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4999] openat(AT_FDCWD, "./20", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4998] <... openat resumed>) = 3 [pid 4999] <... openat resumed>) = 3 [pid 4998] fstat(3, [pid 4999] fstat(3, [pid 4998] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] getdents64(3, [pid 4999] getdents64(3, [pid 4998] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 4999] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 4998] umount2("./19/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] umount2("./20/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./19/binderfs", [pid 4999] lstat("./20/binderfs", [pid 4998] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4999] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4998] unlink("./19/binderfs" [pid 4999] unlink("./20/binderfs" [pid 4998] <... unlink resumed>) = 0 [pid 4999] <... unlink resumed>) = 0 [pid 4998] umount2("./19/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] umount2("./20/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4995] <... umount2 resumed>) = 0 [ 95.355913][ T5239] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 95.381139][ T5240] REISERFS (device loop2): checking transaction log (loop2) [ 95.390589][ T5240] REISERFS (device loop2): Using tea hash to sort names [ 95.398898][ T5239] REISERFS (device loop1): checking transaction log (loop1) [pid 4995] umount2("./19/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4995] lstat("./19/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4995] umount2("./19/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4995] openat(AT_FDCWD, "./19/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5240] <... mount resumed>) = 0 [pid 5240] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 4995] <... openat resumed>) = 4 [pid 5240] <... openat resumed>) = 3 [pid 4995] fstat(4, [pid 5240] chdir("./file0" [pid 4995] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5240] <... chdir resumed>) = 0 [pid 5240] ioctl(4, LOOP_CLR_FD) = 0 [pid 5240] close(4) = 0 [pid 5240] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4995] getdents64(4, [pid 5240] <... openat resumed>) = 4 [pid 4995] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4995] getdents64(4, 0x55555708f660 /* 0 entries */, 32768) = 0 [pid 5240] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0) = 0x20000000 [pid 5240] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5240] exit_group(0) = ? [pid 4995] close(4) = 0 [pid 4995] rmdir("./19/file0" [pid 5240] +++ exited with 0 +++ [pid 4997] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5240, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=17 /* 0.17 s */} --- [pid 4997] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 4995] <... rmdir resumed>) = 0 [pid 4997] umount2("./19", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4997] openat(AT_FDCWD, "./19", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 4997] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4997] getdents64(3, 0x555557087620 /* 4 entries */, 32768) = 112 [pid 4997] umount2("./19/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4997] lstat("./19/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4997] unlink("./19/binderfs") = 0 [pid 4997] umount2("./19/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4995] getdents64(3, 0x555557087620 /* 0 entries */, 32768) = 0 [pid 4995] close(3) = 0 [pid 4995] rmdir("./19" [pid 5239] <... mount resumed>) = 0 [pid 5239] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 4995] <... rmdir resumed>) = 0 [pid 4995] mkdir("./20", 0777 [pid 5239] <... openat resumed>) = 3 [pid 5239] chdir("./file0") = 0 [pid 5239] ioctl(4, LOOP_CLR_FD) = 0 [pid 4995] <... mkdir resumed>) = 0 [pid 5239] close(4 [pid 4995] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 4995] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5239] <... close resumed>) = 0 [pid 4995] close(3 [pid 5239] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4995] <... close resumed>) = 0 [pid 4995] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5239] <... openat resumed>) = 4 [pid 5239] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0) = 0x20000000 [pid 5239] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5239] exit_group(0) = ? ./strace-static-x86_64: Process 5247 attached [pid 5247] chdir("./20") = 0 [pid 5247] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5247] setpgid(0, 0) = 0 [pid 5239] +++ exited with 0 +++ [pid 4996] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5239, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=14 /* 0.14 s */} --- [pid 4996] restart_syscall(<... resuming interrupted clone ...> [pid 5247] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4996] <... restart_syscall resumed>) = 0 [pid 4996] umount2("./19", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4996] openat(AT_FDCWD, "./19", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 4996] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4996] getdents64(3, 0x555557087620 /* 4 entries */, 32768) = 112 [pid 4996] umount2("./19/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4996] lstat("./19/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4996] unlink("./19/binderfs") = 0 [pid 4996] umount2("./19/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4995] <... clone resumed>, child_tidptr=0x5555570865d0) = 5247 [pid 5247] <... openat resumed>) = 3 [pid 5247] write(3, "1000", 4) = 4 [pid 5247] close(3) = 0 [pid 5247] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5247] memfd_create("syzkaller", 0) = 3 [pid 5247] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7faaa11e5000 [ 95.407356][ T5240] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 95.418864][ T5239] REISERFS (device loop1): Using tea hash to sort names [ 95.437245][ T5239] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [pid 5000] <... umount2 resumed>) = 0 [pid 5000] umount2("./18/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] <... umount2 resumed>) = 0 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] umount2("./20/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] lstat("./18/file0", [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] lstat("./20/file0", [pid 5000] umount2("./18/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./18/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4999] umount2("./20/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] <... openat resumed>) = 4 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./20/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5000] fstat(4, [pid 4999] <... openat resumed>) = 4 [pid 5000] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] getdents64(4, 0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4999] getdents64(4, 0x55555708f660 /* 2 entries */, 32768) = 48 [pid 5000] getdents64(4, [pid 4999] getdents64(4, [pid 5000] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 5000] close(4 [pid 4999] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 5000] <... close resumed>) = 0 [pid 4999] close(4 [pid 5000] rmdir("./18/file0" [pid 4999] <... close resumed>) = 0 [pid 5000] <... rmdir resumed>) = 0 [pid 4999] rmdir("./20/file0") = 0 [pid 5000] getdents64(3, 0x555557087620 /* 0 entries */, 32768) = 0 [pid 4999] getdents64(3, 0x555557087620 /* 0 entries */, 32768) = 0 [pid 5000] close(3) = 0 [pid 5000] rmdir("./18" [pid 4999] close(3 [pid 5000] <... rmdir resumed>) = 0 [pid 4999] <... close resumed>) = 0 [pid 5000] mkdir("./19", 0777 [pid 4999] rmdir("./20") = 0 [pid 5000] <... mkdir resumed>) = 0 [pid 4999] mkdir("./21", 0777 [pid 5000] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4999] <... mkdir resumed>) = 0 [pid 4999] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5000] <... openat resumed>) = 3 [pid 4999] <... openat resumed>) = 3 [pid 5000] ioctl(3, LOOP_CLR_FD [pid 4999] ioctl(3, LOOP_CLR_FD [pid 5000] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4999] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4999] close(3 [pid 5000] close(3 [pid 4999] <... close resumed>) = 0 [pid 5000] <... close resumed>) = 0 [pid 4999] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5000] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4999] <... clone resumed>, child_tidptr=0x5555570865d0) = 5249 [pid 5000] <... clone resumed>, child_tidptr=0x5555570865d0) = 5248 ./strace-static-x86_64: Process 5248 attached [pid 5248] chdir("./19") = 0 [pid 5248] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4998] <... umount2 resumed>) = 0 ./strace-static-x86_64: Process 5249 attached [pid 4998] umount2("./19/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5249] chdir("./21" [pid 4998] lstat("./19/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5248] setpgid(0, 0) = 0 [pid 5249] <... chdir resumed>) = 0 [pid 4998] umount2("./19/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5249] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5248] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5249] <... prctl resumed>) = 0 [pid 4998] openat(AT_FDCWD, "./19/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5249] setpgid(0, 0 [pid 4998] <... openat resumed>) = 4 [pid 5249] <... setpgid resumed>) = 0 [pid 5248] <... openat resumed>) = 3 [pid 4998] fstat(4, [pid 5249] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4998] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5249] <... openat resumed>) = 3 [pid 4998] getdents64(4, [pid 5249] write(3, "1000", 4 [pid 4998] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 5249] <... write resumed>) = 4 [pid 4998] getdents64(4, [pid 5248] write(3, "1000", 4) = 4 [pid 5249] close(3 [pid 5248] close(3 [pid 4998] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 5249] <... close resumed>) = 0 [pid 4998] close(4 [pid 5249] symlink("/dev/binderfs", "./binderfs" [pid 4998] <... close resumed>) = 0 [pid 5249] <... symlink resumed>) = 0 [pid 4998] rmdir("./19/file0" [pid 5248] <... close resumed>) = 0 [pid 5249] memfd_create("syzkaller", 0 [pid 4998] <... rmdir resumed>) = 0 [pid 5248] symlink("/dev/binderfs", "./binderfs" [pid 5249] <... memfd_create resumed>) = 3 [pid 4998] getdents64(3, [pid 5249] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5248] <... symlink resumed>) = 0 [pid 4998] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 4997] <... umount2 resumed>) = 0 [pid 5249] <... mmap resumed>) = 0x7faaa11e5000 [pid 4998] close(3 [pid 5248] memfd_create("syzkaller", 0 [pid 4998] <... close resumed>) = 0 [pid 4996] <... umount2 resumed>) = 0 [pid 4998] rmdir("./19" [pid 5248] <... memfd_create resumed>) = 3 [pid 4998] <... rmdir resumed>) = 0 [pid 4998] mkdir("./20", 0777) = 0 [pid 4998] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 4998] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 4998] close(3) = 0 [pid 4998] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4997] umount2("./19/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] <... clone resumed>, child_tidptr=0x5555570865d0) = 5250 [pid 4997] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4997] lstat("./19/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5248] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7faaa11e5000 [pid 4997] umount2("./19/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5247] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 4997] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4997] openat(AT_FDCWD, "./19/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY./strace-static-x86_64: Process 5250 attached ) = 4 [pid 4997] fstat(4, [pid 5250] chdir("./20" [pid 4997] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5250] <... chdir resumed>) = 0 [pid 5250] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4997] getdents64(4, [pid 5250] <... prctl resumed>) = 0 [pid 4997] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 5250] setpgid(0, 0 [pid 4997] getdents64(4, [pid 5250] <... setpgid resumed>) = 0 [pid 4997] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 5250] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4997] close(4 [pid 5250] <... openat resumed>) = 3 [pid 4997] <... close resumed>) = 0 [pid 5250] write(3, "1000", 4 [pid 4997] rmdir("./19/file0" [pid 5250] <... write resumed>) = 4 [pid 4997] <... rmdir resumed>) = 0 [pid 5250] close(3 [pid 4997] getdents64(3, [pid 5250] <... close resumed>) = 0 [pid 4997] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 5250] symlink("/dev/binderfs", "./binderfs" [pid 4997] close(3 [pid 5250] <... symlink resumed>) = 0 [pid 4997] <... close resumed>) = 0 [pid 5250] memfd_create("syzkaller", 0 [pid 4997] rmdir("./19" [pid 5250] <... memfd_create resumed>) = 3 [pid 4997] <... rmdir resumed>) = 0 [pid 5250] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 4997] mkdir("./20", 0777 [pid 5250] <... mmap resumed>) = 0x7faaa11e5000 [pid 4997] <... mkdir resumed>) = 0 [pid 4997] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 4997] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 4997] close(3) = 0 [pid 4997] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570865d0) = 5251 ./strace-static-x86_64: Process 5251 attached [pid 5251] chdir("./20" [pid 4996] umount2("./19/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5251] <... chdir resumed>) = 0 [pid 5251] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4996] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5251] setpgid(0, 0) = 0 [pid 5251] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4996] lstat("./19/file0", [pid 5251] <... openat resumed>) = 3 [pid 5251] write(3, "1000", 4 [pid 4996] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5251] <... write resumed>) = 4 [pid 5251] close(3) = 0 [pid 5251] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4996] umount2("./19/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5251] memfd_create("syzkaller", 0) = 3 [pid 5251] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 4996] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5251] <... mmap resumed>) = 0x7faaa11e5000 [pid 5248] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 4996] openat(AT_FDCWD, "./19/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 4996] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4996] getdents64(4, 0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4996] getdents64(4, 0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4996] close(4) = 0 [pid 4996] rmdir("./19/file0") = 0 [pid 4996] getdents64(3, 0x555557087620 /* 0 entries */, 32768) = 0 [pid 4996] close(3) = 0 [pid 4996] rmdir("./19" [pid 5249] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 4996] <... rmdir resumed>) = 0 [pid 4996] mkdir("./20", 0777) = 0 [pid 4996] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 4996] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 4996] close(3) = 0 [pid 4996] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570865d0) = 5252 ./strace-static-x86_64: Process 5252 attached [pid 5252] chdir("./20") = 0 [pid 5252] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5252] setpgid(0, 0) = 0 [pid 5252] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5252] write(3, "1000", 4) = 4 [pid 5252] close(3) = 0 [pid 5252] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5252] memfd_create("syzkaller", 0 [pid 5250] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5252] <... memfd_create resumed>) = 3 [pid 5252] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7faaa11e5000 [pid 5247] <... write resumed>) = 4194304 [pid 5247] munmap(0x7faaa11e5000, 4194304) = 0 [pid 5247] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5247] ioctl(4, LOOP_SET_FD, 3 [pid 5251] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5247] <... ioctl resumed>) = 0 [pid 5247] close(3) = 0 [pid 5247] mkdir("./file0", 0777) = 0 [ 95.866841][ T5247] loop0: detected capacity change from 0 to 8192 [pid 5247] mount("/dev/loop0", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5252] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5248] <... write resumed>) = 4194304 [pid 5248] munmap(0x7faaa11e5000, 4194304) = 0 [pid 5248] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [ 95.919222][ T5247] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 95.941096][ T5248] loop5: detected capacity change from 0 to 8192 [pid 5248] ioctl(4, LOOP_SET_FD, 3 [pid 5249] <... write resumed>) = 4194304 [pid 5250] <... write resumed>) = 4194304 [pid 5248] <... ioctl resumed>) = 0 [pid 5250] munmap(0x7faaa11e5000, 4194304 [pid 5248] close(3 [pid 5250] <... munmap resumed>) = 0 [pid 5248] <... close resumed>) = 0 [pid 5252] <... write resumed>) = 4194304 [ 95.964897][ T5247] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 95.974233][ T5247] REISERFS (device loop0): using ordered data mode [ 95.981142][ T5247] reiserfs: using flush barriers [ 95.987703][ T5247] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5249] munmap(0x7faaa11e5000, 4194304 [pid 5250] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5248] mkdir("./file0", 0777 [pid 5252] munmap(0x7faaa11e5000, 4194304 [pid 5249] <... munmap resumed>) = 0 [pid 5252] <... munmap resumed>) = 0 [pid 5248] <... mkdir resumed>) = 0 [pid 5252] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5249] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5248] mount("/dev/loop5", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5252] <... openat resumed>) = 4 [pid 5249] <... openat resumed>) = 4 [pid 5252] ioctl(4, LOOP_SET_FD, 3 [pid 5250] <... openat resumed>) = 4 [pid 5249] ioctl(4, LOOP_SET_FD, 3 [pid 5252] <... ioctl resumed>) = 0 [pid 5250] ioctl(4, LOOP_SET_FD, 3 [pid 5252] close(3 [pid 5249] <... ioctl resumed>) = 0 [pid 5249] close(3) = 0 [pid 5249] mkdir("./file0", 0777 [pid 5252] <... close resumed>) = 0 [pid 5249] <... mkdir resumed>) = 0 [ 96.015921][ T5247] REISERFS (device loop0): checking transaction log (loop0) [ 96.030957][ T5252] loop1: detected capacity change from 0 to 8192 [ 96.035023][ T5247] REISERFS (device loop0): Using tea hash to sort names [ 96.037683][ T5249] loop4: detected capacity change from 0 to 8192 [ 96.046594][ T5247] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 96.060462][ T5250] loop3: detected capacity change from 0 to 8192 [pid 5249] mount("/dev/loop4", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5247] <... mount resumed>) = 0 [pid 5247] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5247] chdir("./file0") = 0 [pid 5247] ioctl(4, LOOP_CLR_FD [pid 5252] mkdir("./file0", 0777) = 0 [pid 5251] <... write resumed>) = 4194304 [pid 5250] <... ioctl resumed>) = 0 [pid 5247] <... ioctl resumed>) = 0 [pid 5247] close(4 [pid 5252] mount("/dev/loop1", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5251] munmap(0x7faaa11e5000, 4194304 [pid 5250] close(3 [pid 5251] <... munmap resumed>) = 0 [pid 5250] <... close resumed>) = 0 [ 96.067339][ T5248] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 96.081287][ T5248] REISERFS (device loop5): found reiserfs format "3.5" with non-standard journal [ 96.082101][ T5249] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 96.091522][ T5248] REISERFS (device loop5): using ordered data mode [ 96.110258][ T5248] reiserfs: using flush barriers [pid 5247] <... close resumed>) = 0 [pid 5247] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5251] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5250] mkdir("./file0", 0777 [pid 5247] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 5251] <... openat resumed>) = 4 [pid 5250] <... mkdir resumed>) = 0 [ 96.119396][ T5249] REISERFS (device loop4): found reiserfs format "3.5" with non-standard journal [ 96.128660][ T5248] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 96.145161][ T5249] REISERFS (device loop4): using ordered data mode [ 96.153094][ T5248] REISERFS (device loop5): checking transaction log (loop5) [ 96.157455][ T5247] [ 96.162773][ T5247] ====================================================== [ 96.169960][ T5247] WARNING: possible circular locking dependency detected [ 96.176972][ T5247] 6.4.0-rc4-syzkaller-00051-g48b1320a674e #0 Not tainted [ 96.184003][ T5247] ------------------------------------------------------ [ 96.191025][ T5247] syz-executor455/5247 is trying to acquire lock: [ 96.197433][ T5247] ffff888145e54090 (&sbi->lock){+.+.}-{3:3}, at: reiserfs_write_lock+0x7a/0xd0 [ 96.206518][ T5247] [ 96.206518][ T5247] but task is already holding lock: [ 96.213878][ T5247] ffff88802c422e68 (&mm->mmap_lock){++++}-{3:3}, at: vm_mmap_pgoff+0x17c/0x410 [ 96.222849][ T5247] [ 96.222849][ T5247] which lock already depends on the new lock. [ 96.222849][ T5247] [ 96.233267][ T5247] [ 96.233267][ T5247] the existing dependency chain (in reverse order) is: [ 96.242274][ T5247] [ 96.242274][ T5247] -> #1 (&mm->mmap_lock){++++}-{3:3}: [ 96.249839][ T5247] lock_acquire+0x1e3/0x520 [ 96.254872][ T5247] __might_fault+0xba/0x120 [ 96.259904][ T5247] reiserfs_ioctl+0x121/0x340 [ 96.265107][ T5247] __se_sys_ioctl+0xf1/0x160 [ 96.270223][ T5247] do_syscall_64+0x41/0xc0 [ 96.275183][ T5247] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 96.281598][ T5247] [ 96.281598][ T5247] -> #0 (&sbi->lock){+.+.}-{3:3}: [ 96.288812][ T5247] validate_chain+0x166b/0x58f0 [ 96.294192][ T5247] __lock_acquire+0x1316/0x2070 [ 96.299567][ T5247] lock_acquire+0x1e3/0x520 [ 96.304699][ T5247] __mutex_lock_common+0x1d8/0x2530 [ 96.310428][ T5247] mutex_lock_nested+0x1b/0x20 [ 96.316154][ T5247] reiserfs_write_lock+0x7a/0xd0 [ 96.321621][ T5247] reiserfs_dirty_inode+0xf2/0x240 [ 96.327261][ T5247] __mark_inode_dirty+0x305/0xd90 [ 96.332812][ T5247] touch_atime+0x3fe/0x680 [ 96.337768][ T5247] generic_file_mmap+0xc0/0x120 [ 96.343158][ T5247] mmap_region+0xe65/0x2250 [ 96.348179][ T5247] do_mmap+0x8c9/0xf70 [ 96.352768][ T5247] vm_mmap_pgoff+0x1db/0x410 [ 96.357883][ T5247] ksys_mmap_pgoff+0x4f9/0x6d0 [ 96.363167][ T5247] do_syscall_64+0x41/0xc0 [ 96.368111][ T5247] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 96.374529][ T5247] [ 96.374529][ T5247] other info that might help us debug this: [ 96.374529][ T5247] [ 96.384767][ T5247] Possible unsafe locking scenario: [ 96.384767][ T5247] [ 96.392243][ T5247] CPU0 CPU1 [ 96.397623][ T5247] ---- ---- [ 96.408145][ T5247] lock(&mm->mmap_lock); [ 96.412493][ T5247] lock(&sbi->lock); [ 96.419006][ T5247] lock(&mm->mmap_lock); [ 96.425883][ T5247] lock(&sbi->lock); [ 96.429877][ T5247] [ 96.429877][ T5247] *** DEADLOCK *** [ 96.429877][ T5247] [ 96.438020][ T5247] 2 locks held by syz-executor455/5247: [ 96.443565][ T5247] #0: ffff88802c422e68 (&mm->mmap_lock){++++}-{3:3}, at: vm_mmap_pgoff+0x17c/0x410 [ 96.452985][ T5247] #1: ffff88802b5e2460 (sb_writers#9){.+.+}-{0:0}, at: generic_file_mmap+0xc0/0x120 [ 96.462489][ T5247] [ 96.462489][ T5247] stack backtrace: [ 96.468377][ T5247] CPU: 0 PID: 5247 Comm: syz-executor455 Not tainted 6.4.0-rc4-syzkaller-00051-g48b1320a674e #0 [ 96.478789][ T5247] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023 [ 96.488848][ T5247] Call Trace: [ 96.492131][ T5247] [ 96.495072][ T5247] dump_stack_lvl+0x1e7/0x2d0 [ 96.499765][ T5247] ? nf_tcp_handle_invalid+0x650/0x650 [ 96.505243][ T5247] ? print_circular_bug+0x12b/0x1a0 [ 96.510458][ T5247] check_noncircular+0x2fe/0x3b0 [ 96.515411][ T5247] ? add_chain_block+0x850/0x850 [ 96.520368][ T5247] validate_chain+0x166b/0x58f0 [ 96.525229][ T5247] ? check_path+0x21/0x40 [ 96.529581][ T5247] ? reacquire_held_locks+0x660/0x660 [ 96.534967][ T5247] ? validate_chain+0x13d5/0x58f0 [ 96.540021][ T5247] ? stack_trace_snprint+0xf0/0xf0 [ 96.545154][ T5247] ? mark_lock+0x9a/0x340 [ 96.549495][ T5247] __lock_acquire+0x1316/0x2070 [ 96.554365][ T5247] lock_acquire+0x1e3/0x520 [ 96.558921][ T5247] ? reiserfs_write_lock+0x7a/0xd0 [ 96.564047][ T5247] ? read_lock_is_recursive+0x20/0x20 [ 96.569429][ T5247] ? __might_sleep+0xc0/0xc0 [ 96.574047][ T5247] __mutex_lock_common+0x1d8/0x2530 [ 96.579258][ T5247] ? reiserfs_write_lock+0x7a/0xd0 [ 96.584380][ T5247] ? mark_lock+0x9a/0x340 [ 96.588736][ T5247] ? reiserfs_write_lock+0x7a/0xd0 [ 96.593943][ T5247] ? lockdep_hardirqs_on_prepare+0x43c/0x7a0 [ 96.599934][ T5247] ? mutex_lock_io_nested+0x60/0x60 [ 96.605151][ T5247] ? ktime_get_coarse_real_ts64+0x3a/0x120 [ 96.610971][ T5247] ? lockdep_hardirqs_on+0x98/0x140 [ 96.616180][ T5247] mutex_lock_nested+0x1b/0x20 [ 96.620955][ T5247] reiserfs_write_lock+0x7a/0xd0 [ 96.625904][ T5247] reiserfs_dirty_inode+0xf2/0x240 [ 96.631030][ T5247] ? __mnt_want_write+0x87/0x2b0 [ 96.635977][ T5247] ? reiserfs_free_inode+0x30/0x30 [ 96.641104][ T5247] ? current_time+0x1e0/0x300 [ 96.645796][ T5247] ? reiserfs_free_inode+0x30/0x30 [ 96.650915][ T5247] __mark_inode_dirty+0x305/0xd90 [ 96.655951][ T5247] ? generic_file_mmap+0xc0/0x120 [ 96.661053][ T5247] touch_atime+0x3fe/0x680 [ 96.665520][ T5247] ? current_time+0x300/0x300 [ 96.670223][ T5247] ? __raw_spin_lock_init+0x45/0x100 [ 96.675537][ T5247] generic_file_mmap+0xc0/0x120 [ 96.680407][ T5247] mmap_region+0xe65/0x2250 [ 96.684948][ T5247] ? file_mmap_ok+0x150/0x150 [ 96.689656][ T5247] ? cap_mmap_addr+0x162/0x2c0 [ 96.694433][ T5247] do_mmap+0x8c9/0xf70 [ 96.698508][ T5247] ? mlock_future_check+0x110/0x110 [ 96.703709][ T5247] ? ima_file_free+0x3c0/0x3c0 [ 96.708488][ T5247] vm_mmap_pgoff+0x1db/0x410 [ 96.713086][ T5247] ? account_locked_vm+0x220/0x220 [ 96.718202][ T5247] ? __fget_files+0x3cf/0x440 [ 96.722883][ T5247] ksys_mmap_pgoff+0x4f9/0x6d0 [ 96.727657][ T5247] do_syscall_64+0x41/0xc0 [ 96.732090][ T5247] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 96.738013][ T5247] RIP: 0033:0x7faaa9632a59 [ 96.742437][ T5247] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 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 c0 ff ff ff f7 d8 64 89 01 48 [ 96.762055][ T5247] RSP: 002b:00007fffffcf81a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 [ 96.770477][ T5247] RAX: ffffffffffffffda RBX: 000000000001711c RCX: 00007faaa9632a59 [ 96.778648][ T5247] RDX: 0000000000000000 RSI: 0000000000b36000 RDI: 0000000020000000 [ 96.786621][ T5247] RBP: 0000000000000000 R08: 0000000000000004 R09: 0000000000000000 [ 96.794596][ T5247] R10: 0000000000028011 R11: 0000000000000246 R12: 00007fffffcf81dc [ 96.802570][ T5247] R13: 00007fffffcf8210 R14: 00007fffffcf81f0 R15: 0000000000000014 [ 96.810553][ T5247] [pid 5251] ioctl(4, LOOP_SET_FD, 3 [pid 5250] mount("/dev/loop3", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5251] <... ioctl resumed>) = 0 [pid 5251] close(3) = 0 [pid 5251] mkdir("./file0", 0777) = 0 [pid 5251] mount("/dev/loop2", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5247] <... mmap resumed>) = 0x20000000 [pid 5247] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5247] exit_group(0) = ? [pid 5247] +++ exited with 0 +++ [ 96.816677][ T5252] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 96.819393][ T5249] reiserfs: using flush barriers [ 96.830212][ T5248] REISERFS (device loop5): Using tea hash to sort names [ 96.835950][ T5251] loop2: detected capacity change from 0 to 8192 [ 96.842602][ T5249] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 4995] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5247, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- [pid 4995] umount2("./20", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4995] openat(AT_FDCWD, "./20", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 4995] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4995] getdents64(3, 0x555557087620 /* 4 entries */, 32768) = 112 [pid 4995] umount2("./20/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4995] lstat("./20/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4995] unlink("./20/binderfs") = 0 [ 96.866510][ T5250] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 96.866535][ T5252] REISERFS (device loop1): found reiserfs format "3.5" with non-standard journal [ 96.889046][ T5252] REISERFS (device loop1): using ordered data mode [ 96.895833][ T5252] reiserfs: using flush barriers [ 96.902201][ T5249] REISERFS (device loop4): checking transaction log (loop4) [ 96.902843][ T5252] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 96.909956][ T5250] REISERFS (device loop3): found reiserfs format "3.5" with non-standard journal [ 96.926523][ T5251] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 96.935096][ T5250] REISERFS (device loop3): using ordered data mode [ 96.948208][ T5249] REISERFS (device loop4): Using tea hash to sort names [ 96.954498][ T5250] reiserfs: using flush barriers [ 96.961521][ T5250] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 96.969539][ T5248] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 96.983808][ T5250] REISERFS (device loop3): checking transaction log (loop3) [ 96.999871][ T5252] REISERFS (device loop1): checking transaction log (loop1) [ 97.004418][ T5250] REISERFS (device loop3): Using tea hash to sort names [ 97.007365][ T5251] REISERFS (device loop2): found reiserfs format "3.5" with non-standard journal [ 97.015225][ T5252] REISERFS (device loop1): Using tea hash to sort names [ 97.023540][ T5251] REISERFS (device loop2): using ordered data mode [ 97.036945][ T5251] reiserfs: using flush barriers [ 97.041506][ T5250] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 97.043139][ T5249] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [pid 4995] umount2("./20/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5249] <... mount resumed>) = 0 [pid 5249] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5249] chdir("./file0" [pid 5248] <... mount resumed>) = 0 [pid 5249] <... chdir resumed>) = 0 [pid 5251] <... mount resumed>) = 0 [pid 5249] ioctl(4, LOOP_CLR_FD [pid 5248] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5252] <... mount resumed>) = 0 [pid 5251] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5250] <... mount resumed>) = 0 [pid 5249] <... ioctl resumed>) = 0 [pid 5248] <... openat resumed>) = 3 [pid 5252] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5251] <... openat resumed>) = 3 [pid 5250] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5249] close(4 [pid 5248] chdir("./file0" [pid 5251] chdir("./file0" [pid 5250] <... openat resumed>) = 3 [pid 5249] <... close resumed>) = 0 [pid 5248] <... chdir resumed>) = 0 [pid 5251] <... chdir resumed>) = 0 [pid 5250] chdir("./file0" [pid 5249] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5248] ioctl(4, LOOP_CLR_FD [pid 5251] ioctl(4, LOOP_CLR_FD [pid 5250] <... chdir resumed>) = 0 [pid 5249] <... openat resumed>) = 4 [pid 5248] <... ioctl resumed>) = 0 [pid 5251] <... ioctl resumed>) = 0 [pid 5250] ioctl(4, LOOP_CLR_FD [pid 5249] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 5248] close(4 [pid 5251] close(4 [pid 5250] <... ioctl resumed>) = 0 [pid 5249] <... mmap resumed>) = 0x20000000 [pid 5248] <... close resumed>) = 0 [pid 5251] <... close resumed>) = 0 [pid 5250] close(4 [pid 5249] ioctl(4, FS_IOC_GETVERSION [pid 5248] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5251] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5250] <... close resumed>) = 0 [pid 5249] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5248] <... openat resumed>) = 4 [pid 5251] <... openat resumed>) = 4 [pid 5250] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5249] exit_group(0 [pid 5248] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 5251] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 5250] <... openat resumed>) = 4 [pid 5249] <... exit_group resumed>) = ? [pid 5248] <... mmap resumed>) = 0x20000000 [pid 5251] <... mmap resumed>) = 0x20000000 [pid 5250] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 5249] +++ exited with 0 +++ [pid 5248] ioctl(4, FS_IOC_GETVERSION [pid 5252] <... openat resumed>) = 3 [pid 5251] ioctl(4, FS_IOC_GETVERSION [pid 5250] <... mmap resumed>) = 0x20000000 [pid 5248] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 4995] <... umount2 resumed>) = 0 [pid 5252] chdir("./file0" [pid 5251] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5250] ioctl(4, FS_IOC_GETVERSION [pid 5248] exit_group(0 [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5249, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=18 /* 0.18 s */} --- [pid 5252] <... chdir resumed>) = 0 [pid 5251] exit_group(0 [pid 5250] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5248] <... exit_group resumed>) = ? [pid 4999] umount2("./21", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4995] umount2("./20/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5252] ioctl(4, LOOP_CLR_FD [pid 5251] <... exit_group resumed>) = ? [pid 5250] exit_group(0 [pid 5248] +++ exited with 0 +++ [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5252] <... ioctl resumed>) = 0 [pid 5251] +++ exited with 0 +++ [pid 5250] <... exit_group resumed>) = ? [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5248, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=19 /* 0.19 s */} --- [pid 4999] openat(AT_FDCWD, "./21", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4995] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5252] close(4 [pid 5250] +++ exited with 0 +++ [pid 4999] <... openat resumed>) = 3 [pid 4999] fstat(3, [pid 5000] umount2("./19", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] getdents64(3, [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5250, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=19 /* 0.19 s */} --- [pid 5000] openat(AT_FDCWD, "./19", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4999] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 5000] <... openat resumed>) = 3 [pid 4999] umount2("./21/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] restart_syscall(<... resuming interrupted clone ...> [pid 5000] fstat(3, [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] lstat("./21/binderfs", [pid 4998] <... restart_syscall resumed>) = 0 [pid 5000] getdents64(3, [pid 4999] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 4999] unlink("./21/binderfs" [pid 5000] umount2("./19/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] <... unlink resumed>) = 0 [pid 4998] umount2("./20", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4997] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5251, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=15 /* 0.15 s */} --- [pid 5252] <... close resumed>) = 0 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] umount2("./21/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4995] lstat("./20/file0", [pid 5252] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5000] lstat("./19/binderfs", [pid 4998] openat(AT_FDCWD, "./20", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5000] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4998] <... openat resumed>) = 3 [pid 4995] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] unlink("./19/binderfs" [pid 4998] fstat(3, [pid 5252] <... openat resumed>) = 4 [pid 5000] <... unlink resumed>) = 0 [pid 4998] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4995] umount2("./20/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5252] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 5000] umount2("./19/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] <... umount2 resumed>) = 0 [pid 4998] getdents64(3, [pid 4999] umount2("./21/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] umount2("./20/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] lstat("./21/file0", [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] lstat("./20/binderfs", [pid 4999] umount2("./21/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] unlink("./20/binderfs" [ 97.060237][ T5251] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 97.069545][ T5252] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 97.077120][ T5251] REISERFS (device loop2): checking transaction log (loop2) [ 97.093708][ T5251] REISERFS (device loop2): Using tea hash to sort names [ 97.102926][ T5251] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 4999] openat(AT_FDCWD, "./21/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4998] <... unlink resumed>) = 0 [pid 4999] <... openat resumed>) = 4 [pid 4998] umount2("./20/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] getdents64(4, 0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4999] getdents64(4, 0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4999] close(4) = 0 [pid 4999] rmdir("./21/file0") = 0 [pid 4995] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] getdents64(3, 0x555557087620 /* 0 entries */, 32768) = 0 [pid 4999] close(3) = 0 [pid 4999] rmdir("./21" [pid 5252] <... mmap resumed>) = 0x20000000 [pid 4999] <... rmdir resumed>) = 0 [pid 5252] ioctl(4, FS_IOC_GETVERSION [pid 4999] mkdir("./22", 0777 [pid 4995] openat(AT_FDCWD, "./20/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5252] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5252] exit_group(0 [pid 4999] <... mkdir resumed>) = 0 [pid 4995] <... openat resumed>) = 4 [pid 5252] <... exit_group resumed>) = ? [pid 4997] umount2("./20", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4995] fstat(4, [pid 4999] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5252] +++ exited with 0 +++ [pid 4997] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4995] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4997] openat(AT_FDCWD, "./20", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4996] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5252, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=14 /* 0.14 s */} --- [pid 4995] getdents64(4, [pid 4997] <... openat resumed>) = 3 [pid 4995] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4997] fstat(3, [pid 4999] <... openat resumed>) = 3 [pid 4995] getdents64(4, [pid 4999] ioctl(3, LOOP_CLR_FD [pid 4997] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4996] umount2("./20", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4995] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4999] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4997] getdents64(3, [pid 4996] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] close(3 [pid 4995] close(4 [pid 4999] <... close resumed>) = 0 [pid 4999] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4997] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 4996] openat(AT_FDCWD, "./20", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4997] umount2("./20/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4995] <... close resumed>) = 0 [pid 4999] <... clone resumed>, child_tidptr=0x5555570865d0) = 5259 [pid 4996] <... openat resumed>) = 3 [pid 4995] rmdir("./20/file0" [pid 4997] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4996] fstat(3, [pid 4997] lstat("./20/binderfs", [pid 4996] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4995] <... rmdir resumed>) = 0 [pid 4997] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4996] getdents64(3, [pid 4995] getdents64(3, [pid 4997] unlink("./20/binderfs"./strace-static-x86_64: Process 5259 attached [pid 5000] <... umount2 resumed>) = 0 [pid 4996] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 4995] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 4997] <... unlink resumed>) = 0 [pid 5259] chdir("./22" [pid 5000] umount2("./19/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4997] umount2("./20/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4996] umount2("./20/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4995] close(3 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4995] <... close resumed>) = 0 [pid 4996] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./19/file0", [pid 5259] <... chdir resumed>) = 0 [pid 4996] lstat("./20/binderfs", [pid 4995] rmdir("./20" [pid 4996] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4995] <... rmdir resumed>) = 0 [pid 5000] umount2("./19/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4996] unlink("./20/binderfs" [pid 5259] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4996] <... unlink resumed>) = 0 [pid 5000] openat(AT_FDCWD, "./19/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5259] <... prctl resumed>) = 0 [pid 5000] <... openat resumed>) = 4 [pid 5259] setpgid(0, 0 [pid 5000] fstat(4, [pid 4996] umount2("./20/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4995] mkdir("./21", 0777 [pid 5259] <... setpgid resumed>) = 0 [pid 5000] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5259] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5000] getdents64(4, 0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4995] <... mkdir resumed>) = 0 [pid 5000] getdents64(4, [pid 5259] <... openat resumed>) = 3 [pid 5000] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 5000] close(4 [pid 5259] write(3, "1000", 4 [pid 5000] <... close resumed>) = 0 [pid 5259] <... write resumed>) = 4 [pid 5000] rmdir("./19/file0" [pid 4995] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5259] close(3 [pid 5000] <... rmdir resumed>) = 0 [pid 5259] <... close resumed>) = 0 [pid 5000] getdents64(3, [pid 4995] <... openat resumed>) = 3 [pid 5259] symlink("/dev/binderfs", "./binderfs" [pid 5000] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 4995] ioctl(3, LOOP_CLR_FD [pid 5259] <... symlink resumed>) = 0 [pid 5000] close(3 [pid 4995] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5000] <... close resumed>) = 0 [pid 4995] close(3 [pid 5259] memfd_create("syzkaller", 0 [pid 5000] rmdir("./19" [pid 4995] <... close resumed>) = 0 [pid 5259] <... memfd_create resumed>) = 3 [pid 5000] <... rmdir resumed>) = 0 [pid 4995] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5259] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7faaa11e5000 [pid 5000] mkdir("./20", 0777) = 0 ./strace-static-x86_64: Process 5260 attached [pid 4995] <... clone resumed>, child_tidptr=0x5555570865d0) = 5260 [pid 5000] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5260] chdir("./21" [pid 4998] <... umount2 resumed>) = 0 [pid 4998] umount2("./20/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5260] <... chdir resumed>) = 0 [pid 4998] lstat("./20/file0", [pid 5260] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4998] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5260] <... prctl resumed>) = 0 [pid 5000] <... openat resumed>) = 3 [pid 5260] setpgid(0, 0 [pid 4998] umount2("./20/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5260] <... setpgid resumed>) = 0 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5260] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4998] openat(AT_FDCWD, "./20/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5260] <... openat resumed>) = 3 [pid 5000] ioctl(3, LOOP_CLR_FD [pid 4998] <... openat resumed>) = 4 [pid 5260] write(3, "1000", 4 [pid 4998] fstat(4, [pid 5000] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5260] <... write resumed>) = 4 [pid 4998] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] close(3 [pid 5260] close(3 [pid 4998] getdents64(4, [pid 5260] <... close resumed>) = 0 [pid 4998] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 5260] symlink("/dev/binderfs", "./binderfs" [pid 4998] getdents64(4, [pid 5260] <... symlink resumed>) = 0 [pid 5000] <... close resumed>) = 0 [pid 4998] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 5000] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5260] memfd_create("syzkaller", 0 [pid 4998] close(4 [pid 5260] <... memfd_create resumed>) = 3 [pid 4998] <... close resumed>) = 0 [pid 5260] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 4998] rmdir("./20/file0" [pid 5260] <... mmap resumed>) = 0x7faaa11e5000 [pid 4998] <... rmdir resumed>) = 0 [pid 5000] <... clone resumed>, child_tidptr=0x5555570865d0) = 5261 [pid 4998] getdents64(3, 0x555557087620 /* 0 entries */, 32768) = 0 [pid 4998] close(3) = 0 [pid 4998] rmdir("./20") = 0 [pid 4998] mkdir("./21", 0777) = 0 [pid 4998] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 4998] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 4998] close(3) = 0 [pid 4998] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570865d0) = 5262 ./strace-static-x86_64: Process 5261 attached [pid 5261] chdir("./20") = 0 [pid 5261] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5261] setpgid(0, 0) = 0 [pid 5261] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 5262 attached [pid 5262] chdir("./21" [pid 5261] <... openat resumed>) = 3 [pid 5262] <... chdir resumed>) = 0 [pid 5262] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5262] setpgid(0, 0) = 0 [pid 5262] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5261] write(3, "1000", 4) = 4 [pid 5261] close(3) = 0 [pid 5261] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5262] <... openat resumed>) = 3 [pid 5262] write(3, "1000", 4) = 4 [pid 5261] memfd_create("syzkaller", 0 [pid 5262] close(3) = 0 [pid 5261] <... memfd_create resumed>) = 3 [pid 5262] symlink("/dev/binderfs", "./binderfs" [pid 5261] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5262] <... symlink resumed>) = 0 [pid 5261] <... mmap resumed>) = 0x7faaa11e5000 [pid 5262] memfd_create("syzkaller", 0) = 3 [pid 5262] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7faaa11e5000 [pid 4997] <... umount2 resumed>) = 0 [pid 4996] <... umount2 resumed>) = 0 [pid 4997] umount2("./20/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4996] umount2("./20/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4997] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4996] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4997] lstat("./20/file0", [pid 4996] lstat("./20/file0", [pid 5259] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 4997] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4996] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5260] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 4997] umount2("./20/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4996] umount2("./20/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4997] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4996] openat(AT_FDCWD, "./20/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4997] openat(AT_FDCWD, "./20/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4996] <... openat resumed>) = 4 [pid 4997] <... openat resumed>) = 4 [pid 4996] fstat(4, [pid 4997] fstat(4, [pid 4996] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4997] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4996] getdents64(4, [pid 4997] getdents64(4, [pid 4996] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4997] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4996] getdents64(4, [pid 4997] getdents64(4, [pid 4996] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4997] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4996] close(4 [pid 4997] close(4 [pid 4996] <... close resumed>) = 0 [pid 4997] <... close resumed>) = 0 [pid 4996] rmdir("./20/file0" [pid 4997] rmdir("./20/file0" [pid 4996] <... rmdir resumed>) = 0 [pid 4997] <... rmdir resumed>) = 0 [pid 4996] getdents64(3, [pid 4997] getdents64(3, [pid 4996] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 4997] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 4996] close(3 [pid 4997] close(3 [pid 4996] <... close resumed>) = 0 [pid 4997] <... close resumed>) = 0 [pid 4996] rmdir("./20" [pid 4997] rmdir("./20") = 0 [pid 4996] <... rmdir resumed>) = 0 [pid 4997] mkdir("./21", 0777 [pid 4996] mkdir("./21", 0777 [pid 5261] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 4997] <... mkdir resumed>) = 0 [pid 4996] <... mkdir resumed>) = 0 [pid 4997] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4996] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4997] <... openat resumed>) = 3 [pid 4996] <... openat resumed>) = 3 [pid 4997] ioctl(3, LOOP_CLR_FD [pid 4996] ioctl(3, LOOP_CLR_FD [pid 4997] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4996] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4997] close(3 [pid 4996] close(3) = 0 [pid 4997] <... close resumed>) = 0 [pid 4996] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4997] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4996] <... clone resumed>, child_tidptr=0x5555570865d0) = 5263 [pid 4997] <... clone resumed>, child_tidptr=0x5555570865d0) = 5264 [pid 5262] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304./strace-static-x86_64: Process 5263 attached [pid 5263] chdir("./21") = 0 [pid 5263] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 5264 attached [pid 5264] chdir("./21" [pid 5263] <... prctl resumed>) = 0 [pid 5263] setpgid(0, 0 [pid 5264] <... chdir resumed>) = 0 [pid 5264] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5263] <... setpgid resumed>) = 0 [pid 5264] setpgid(0, 0) = 0 [pid 5264] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5264] write(3, "1000", 4) = 4 [pid 5263] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5259] <... write resumed>) = 4194304 [pid 5264] close(3) = 0 [pid 5264] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5264] memfd_create("syzkaller", 0) = 3 [pid 5263] <... openat resumed>) = 3 [pid 5264] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7faaa11e5000 [pid 5263] write(3, "1000", 4 [pid 5259] munmap(0x7faaa11e5000, 4194304 [pid 5263] <... write resumed>) = 4 [pid 5259] <... munmap resumed>) = 0 [pid 5263] close(3) = 0 [pid 5263] symlink("/dev/binderfs", "./binderfs" [pid 5259] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5263] <... symlink resumed>) = 0 [pid 5259] <... openat resumed>) = 4 [pid 5263] memfd_create("syzkaller", 0 [pid 5259] ioctl(4, LOOP_SET_FD, 3 [pid 5263] <... memfd_create resumed>) = 3 [pid 5263] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7faaa11e5000 [pid 5259] <... ioctl resumed>) = 0 [pid 5261] <... write resumed>) = 4194304 [pid 5259] close(3 [pid 5261] munmap(0x7faaa11e5000, 4194304 [pid 5259] <... close resumed>) = 0 [pid 5259] mkdir("./file0", 0777) = 0 [pid 5259] mount("/dev/loop4", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5261] <... munmap resumed>) = 0 [pid 5261] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [ 97.441570][ T5259] loop4: detected capacity change from 0 to 8192 [ 97.473551][ T5259] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5261] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5261] close(3) = 0 [pid 5261] mkdir("./file0", 0777) = 0 [pid 5261] mount("/dev/loop5", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5264] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5262] <... write resumed>) = 4194304 [pid 5262] munmap(0x7faaa11e5000, 4194304) = 0 [pid 5262] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [ 97.487159][ T5261] loop5: detected capacity change from 0 to 8192 [ 97.510892][ T5259] REISERFS (device loop4): found reiserfs format "3.5" with non-standard journal [ 97.521059][ T5261] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 97.523586][ T5262] loop3: detected capacity change from 0 to 8192 [pid 5262] ioctl(4, LOOP_SET_FD, 3 [pid 5263] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5260] <... write resumed>) = 4194304 [pid 5260] munmap(0x7faaa11e5000, 4194304) = 0 [pid 5260] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5260] ioctl(4, LOOP_SET_FD, 3 [pid 5264] <... write resumed>) = 4194304 [pid 5264] munmap(0x7faaa11e5000, 4194304) = 0 [pid 5264] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5260] <... ioctl resumed>) = 0 [pid 5264] <... openat resumed>) = 4 [ 97.538433][ T5261] REISERFS (device loop5): found reiserfs format "3.5" with non-standard journal [ 97.558527][ T5260] loop0: detected capacity change from 0 to 8192 [ 97.568095][ T5259] REISERFS (device loop4): using ordered data mode [ 97.574947][ T5261] REISERFS (device loop5): using ordered data mode [ 97.582336][ T5261] reiserfs: using flush barriers [ 97.583561][ T5259] reiserfs: using flush barriers [pid 5260] close(3 [pid 5264] ioctl(4, LOOP_SET_FD, 3 [pid 5263] <... write resumed>) = 4194304 [pid 5262] <... ioctl resumed>) = 0 [pid 5260] <... close resumed>) = 0 [pid 5260] mkdir("./file0", 0777) = 0 [pid 5260] mount("/dev/loop0", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5262] close(3) = 0 [pid 5262] mkdir("./file0", 0777) = 0 [ 97.588934][ T5261] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 97.605647][ T5264] loop2: detected capacity change from 0 to 8192 [ 97.608849][ T5261] REISERFS (device loop5): checking transaction log (loop5) [ 97.623187][ T5261] REISERFS (device loop5): Using tea hash to sort names [pid 5262] mount("/dev/loop3", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5264] <... ioctl resumed>) = 0 [pid 5264] close(3) = 0 [pid 5264] mkdir("./file0", 0777) = 0 [pid 5261] <... mount resumed>) = 0 [pid 5263] munmap(0x7faaa11e5000, 4194304 [pid 5264] mount("/dev/loop2", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5263] <... munmap resumed>) = 0 [pid 5261] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [ 97.623941][ T5259] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 97.630484][ T5261] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 97.656470][ T5259] REISERFS (device loop4): checking transaction log (loop4) [ 97.656556][ T5260] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 97.664433][ T5259] REISERFS (device loop4): Using tea hash to sort names [pid 5263] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5261] <... openat resumed>) = 3 [pid 5263] ioctl(4, LOOP_SET_FD, 3 [pid 5261] chdir("./file0" [pid 5259] <... mount resumed>) = 0 [ 97.680784][ T5260] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 97.693414][ T5259] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 97.695417][ T5260] REISERFS (device loop0): using ordered data mode [ 97.709329][ T5260] reiserfs: using flush barriers [ 97.709532][ T5262] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 97.714460][ T5263] loop1: detected capacity change from 0 to 8192 [ 97.729106][ T5262] REISERFS (device loop3): found reiserfs format "3.5" with non-standard journal [pid 5261] <... chdir resumed>) = 0 [pid 5259] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5263] <... ioctl resumed>) = 0 [pid 5261] ioctl(4, LOOP_CLR_FD [pid 5259] <... openat resumed>) = 3 [pid 5263] close(3 [pid 5261] <... ioctl resumed>) = 0 [ 97.734750][ T5260] 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 [ 97.743206][ T5264] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 97.759491][ T5260] REISERFS (device loop0): checking transaction log (loop0) [ 97.774227][ T5262] REISERFS (device loop3): using ordered data mode [ 97.782459][ T5260] REISERFS (device loop0): Using tea hash to sort names [pid 5259] chdir("./file0" [pid 5263] <... close resumed>) = 0 [pid 5261] close(4 [pid 5259] <... chdir resumed>) = 0 [pid 5263] mkdir("./file0", 0777 [pid 5261] <... close resumed>) = 0 [pid 5259] ioctl(4, LOOP_CLR_FD [pid 5263] <... mkdir resumed>) = 0 [pid 5261] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5260] <... mount resumed>) = 0 [pid 5259] <... ioctl resumed>) = 0 [ 97.787406][ T5262] reiserfs: using flush barriers [ 97.793531][ T5260] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 97.800059][ T5264] REISERFS (device loop2): found reiserfs format "3.5" with non-standard journal [ 97.816795][ T5262] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 97.830028][ T5264] REISERFS (device loop2): using ordered data mode [pid 5263] mount("/dev/loop1", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5261] <... openat resumed>) = 4 [pid 5260] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5259] close(4 [pid 5261] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0) = 0x20000000 [pid 5261] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5260] <... openat resumed>) = 3 [pid 5259] <... close resumed>) = 0 [pid 5261] exit_group(0) = ? [pid 5259] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5259] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 5261] +++ exited with 0 +++ [pid 5260] chdir("./file0" [pid 5259] <... mmap resumed>) = 0x20000000 [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5261, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=12 /* 0.12 s */} --- [pid 5260] <... chdir resumed>) = 0 [pid 5259] ioctl(4, FS_IOC_GETVERSION [pid 5260] ioctl(4, LOOP_CLR_FD [pid 5259] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5260] <... ioctl resumed>) = 0 [pid 5259] exit_group(0 [pid 5260] close(4 [pid 5259] <... exit_group resumed>) = ? [pid 5260] <... close resumed>) = 0 [pid 5259] +++ exited with 0 +++ [pid 5260] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5000] umount2("./20", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5259, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 5260] <... openat resumed>) = 4 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5260] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 5000] openat(AT_FDCWD, "./20", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5260] <... mmap resumed>) = 0x20000000 [pid 5260] ioctl(4, FS_IOC_GETVERSION [pid 5000] <... openat resumed>) = 3 [pid 5260] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5000] fstat(3, [pid 4999] umount2("./22", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5260] exit_group(0 [pid 5000] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5260] <... exit_group resumed>) = ? [pid 5000] getdents64(3, [pid 4999] openat(AT_FDCWD, "./22", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5260] +++ exited with 0 +++ [pid 5000] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 4999] fstat(3, [pid 5000] umount2("./20/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4995] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5260, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=13 /* 0.13 s */} --- [pid 4999] getdents64(3, 0x555557087620 /* 4 entries */, 32768) = 112 [pid 4999] umount2("./22/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] lstat("./22/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4999] unlink("./22/binderfs" [pid 4995] umount2("./21", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] <... unlink resumed>) = 0 [pid 4995] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] umount2("./22/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4995] openat(AT_FDCWD, "./21", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5000] lstat("./20/binderfs", [pid 4995] <... openat resumed>) = 3 [pid 5000] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4995] fstat(3, [pid 5000] unlink("./20/binderfs" [pid 4995] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4995] getdents64(3, [pid 5000] <... unlink resumed>) = 0 [pid 4995] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 5000] umount2("./20/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4995] umount2("./21/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4995] lstat("./21/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4995] unlink("./21/binderfs") = 0 [ 97.834661][ T5262] REISERFS (device loop3): checking transaction log (loop3) [ 97.840550][ T5264] reiserfs: using flush barriers [ 97.859994][ T5263] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 97.878687][ T5262] REISERFS (device loop3): Using tea hash to sort names [pid 4995] umount2("./21/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5262] <... mount resumed>) = 0 [pid 5262] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5262] chdir("./file0") = 0 [pid 5262] ioctl(4, LOOP_CLR_FD) = 0 [pid 5262] close(4) = 0 [pid 5262] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5262] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0) = 0x20000000 [pid 5262] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5262] exit_group(0) = ? [pid 5262] +++ exited with 0 +++ [ 97.896836][ T5263] REISERFS (device loop1): found reiserfs format "3.5" with non-standard journal [ 97.896887][ T5264] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 97.906092][ T5263] REISERFS (device loop1): using ordered data mode [ 97.906104][ T5263] reiserfs: using flush barriers [ 97.907233][ T5262] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5262, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=17 /* 0.17 s */} --- [pid 4998] umount2("./21", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./21", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 4998] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] getdents64(3, 0x555557087620 /* 4 entries */, 32768) = 112 [pid 4998] umount2("./21/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./21/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4998] unlink("./21/binderfs") = 0 [ 97.923569][ T5263] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 97.967200][ T5264] REISERFS (device loop2): checking transaction log (loop2) [ 97.975267][ T5263] REISERFS (device loop1): checking transaction log (loop1) [ 97.989766][ T5264] REISERFS (device loop2): Using tea hash to sort names [pid 4998] umount2("./21/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] <... umount2 resumed>) = 0 [pid 5000] umount2("./20/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./20/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] umount2("./20/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./20/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5000] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] getdents64(4, 0x55555708f660 /* 2 entries */, 32768) = 48 [pid 5000] getdents64(4, 0x55555708f660 /* 0 entries */, 32768) = 0 [pid 5000] close(4) = 0 [pid 5000] rmdir("./20/file0") = 0 [pid 5000] getdents64(3, 0x555557087620 /* 0 entries */, 32768) = 0 [pid 5000] close(3) = 0 [pid 5000] rmdir("./20") = 0 [pid 5000] mkdir("./21", 0777) = 0 [pid 5000] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5000] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5000] close(3) = 0 [pid 5000] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570865d0) = 5271 [ 98.022609][ T5263] REISERFS (device loop1): Using tea hash to sort names [ 98.038017][ T5264] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. ./strace-static-x86_64: Process 5271 attached [pid 5271] chdir("./21") = 0 [pid 5271] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5271] setpgid(0, 0) = 0 [pid 5271] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5271] write(3, "1000", 4) = 4 [pid 5271] close(3) = 0 [pid 5271] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5271] memfd_create("syzkaller", 0) = 3 [pid 5271] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7faaa11e5000 [pid 4999] <... umount2 resumed>) = 0 [pid 5264] <... mount resumed>) = 0 [pid 5264] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 4995] <... umount2 resumed>) = 0 [pid 5264] chdir("./file0" [pid 4995] umount2("./21/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5264] <... chdir resumed>) = 0 [pid 5264] ioctl(4, LOOP_CLR_FD [pid 5263] <... mount resumed>) = 0 [pid 4999] umount2("./22/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] <... umount2 resumed>) = 0 [pid 4995] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5264] <... ioctl resumed>) = 0 [pid 5263] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] umount2("./21/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4995] lstat("./21/file0", [pid 5264] close(4 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5264] <... close resumed>) = 0 [pid 4995] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5263] <... openat resumed>) = 3 [pid 5264] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4999] lstat("./22/file0", [pid 4998] lstat("./21/file0", [pid 4995] umount2("./21/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5264] <... openat resumed>) = 4 [pid 4995] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5264] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 4995] openat(AT_FDCWD, "./21/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4998] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5263] chdir("./file0" [pid 5264] <... mmap resumed>) = 0x20000000 [pid 5264] ioctl(4, FS_IOC_GETVERSION [pid 4995] <... openat resumed>) = 4 [pid 4998] umount2("./21/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5264] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 4995] fstat(4, [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5264] exit_group(0 [pid 4998] openat(AT_FDCWD, "./21/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4995] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5264] <... exit_group resumed>) = ? [pid 4999] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] <... openat resumed>) = 4 [pid 4995] getdents64(4, [pid 5263] <... chdir resumed>) = 0 [pid 5264] +++ exited with 0 +++ [pid 4999] umount2("./22/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] fstat(4, [pid 4997] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5264, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=14 /* 0.14 s */} --- [pid 4995] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4995] getdents64(4, [pid 4999] openat(AT_FDCWD, "./22/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4995] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4998] getdents64(4, [pid 4999] <... openat resumed>) = 4 [pid 4998] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4997] umount2("./21", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4995] close(4 [pid 4999] fstat(4, [pid 4998] getdents64(4, [pid 4997] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4995] <... close resumed>) = 0 [pid 4999] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4997] openat(AT_FDCWD, "./21", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4995] rmdir("./21/file0" [pid 4999] getdents64(4, [pid 4998] close(4 [pid 5263] ioctl(4, LOOP_CLR_FD [pid 4997] <... openat resumed>) = 3 [pid 5263] <... ioctl resumed>) = 0 [pid 4999] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4998] <... close resumed>) = 0 [pid 4997] fstat(3, [pid 4995] <... rmdir resumed>) = 0 [pid 5263] close(4 [pid 4999] getdents64(4, [pid 4998] rmdir("./21/file0" [pid 4997] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5263] <... close resumed>) = 0 [pid 4999] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4995] getdents64(3, [pid 5263] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4999] close(4 [pid 4998] <... rmdir resumed>) = 0 [pid 4997] getdents64(3, [pid 4995] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 5263] <... openat resumed>) = 4 [pid 4999] <... close resumed>) = 0 [pid 4998] getdents64(3, [pid 5263] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 4999] rmdir("./22/file0" [pid 4997] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 4995] close(3 [pid 4998] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 5263] <... mmap resumed>) = 0x20000000 [pid 4999] <... rmdir resumed>) = 0 [pid 4998] close(3 [pid 4997] umount2("./21/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4995] <... close resumed>) = 0 [pid 4999] getdents64(3, [pid 4998] <... close resumed>) = 0 [pid 4997] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 4997] lstat("./21/binderfs", [pid 4995] rmdir("./21" [pid 4998] rmdir("./21" [pid 5263] ioctl(4, FS_IOC_GETVERSION [pid 4999] close(3 [pid 4997] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5263] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 4999] <... close resumed>) = 0 [pid 4998] <... rmdir resumed>) = 0 [pid 4997] unlink("./21/binderfs" [pid 4995] <... rmdir resumed>) = 0 [ 98.069631][ T5263] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [pid 5263] exit_group(0 [pid 4999] rmdir("./22" [pid 4998] mkdir("./22", 0777 [pid 5271] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5263] <... exit_group resumed>) = ? [pid 4999] <... rmdir resumed>) = 0 [pid 4998] <... mkdir resumed>) = 0 [pid 4997] <... unlink resumed>) = 0 [pid 4995] mkdir("./22", 0777 [pid 5263] +++ exited with 0 +++ [pid 4999] mkdir("./23", 0777 [pid 4998] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4997] umount2("./21/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4995] <... mkdir resumed>) = 0 [pid 4999] <... mkdir resumed>) = 0 [pid 4998] <... openat resumed>) = 3 [pid 4996] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5263, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=11 /* 0.11 s */} --- [pid 4995] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4999] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4998] ioctl(3, LOOP_CLR_FD [pid 4995] <... openat resumed>) = 3 [pid 4999] <... openat resumed>) = 3 [pid 4998] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4995] ioctl(3, LOOP_CLR_FD [pid 4999] ioctl(3, LOOP_CLR_FD [pid 4998] close(3 [pid 4995] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4999] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4998] <... close resumed>) = 0 [pid 4995] close(3 [pid 4999] close(3 [pid 4998] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4995] <... close resumed>) = 0 [pid 4999] <... close resumed>) = 0 [pid 4995] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4999] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4998] <... clone resumed>, child_tidptr=0x5555570865d0) = 5272 [pid 4995] <... clone resumed>, child_tidptr=0x5555570865d0) = 5273 ./strace-static-x86_64: Process 5274 attached ./strace-static-x86_64: Process 5272 attached [pid 4999] <... clone resumed>, child_tidptr=0x5555570865d0) = 5274 [pid 4996] umount2("./21", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5272] chdir("./22" [pid 4996] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4996] openat(AT_FDCWD, "./21", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 4996] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5274] chdir("./23" [pid 4996] getdents64(3, [pid 5274] <... chdir resumed>) = 0 [pid 5272] <... chdir resumed>) = 0 [pid 4996] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 4996] umount2("./21/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5274] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5272] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4996] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4996] lstat("./21/binderfs", [pid 5272] <... prctl resumed>) = 0 [pid 4996] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5274] <... prctl resumed>) = 0 [pid 5272] setpgid(0, 0 [pid 4996] unlink("./21/binderfs" [pid 5274] setpgid(0, 0 [pid 5272] <... setpgid resumed>) = 0 [pid 4996] <... unlink resumed>) = 0 [pid 4996] umount2("./21/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5273 attached [pid 5274] <... setpgid resumed>) = 0 [pid 5272] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5273] chdir("./22" [pid 5274] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5273] <... chdir resumed>) = 0 [pid 5272] <... openat resumed>) = 3 [pid 5274] <... openat resumed>) = 3 [pid 5273] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5272] write(3, "1000", 4 [pid 5274] write(3, "1000", 4 [pid 5273] <... prctl resumed>) = 0 [pid 5272] <... write resumed>) = 4 [pid 5274] <... write resumed>) = 4 [pid 5273] setpgid(0, 0 [pid 5272] close(3 [pid 5274] close(3 [pid 5273] <... setpgid resumed>) = 0 [pid 5272] <... close resumed>) = 0 [pid 5274] <... close resumed>) = 0 [pid 5273] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5272] symlink("/dev/binderfs", "./binderfs" [pid 5274] symlink("/dev/binderfs", "./binderfs" [pid 5273] <... openat resumed>) = 3 [pid 5273] write(3, "1000", 4) = 4 [pid 5273] close(3 [pid 5272] <... symlink resumed>) = 0 [pid 5273] <... close resumed>) = 0 [pid 5274] <... symlink resumed>) = 0 [pid 5273] symlink("/dev/binderfs", "./binderfs" [pid 5274] memfd_create("syzkaller", 0 [pid 5273] <... symlink resumed>) = 0 [pid 5272] memfd_create("syzkaller", 0 [pid 5274] <... memfd_create resumed>) = 3 [pid 5273] memfd_create("syzkaller", 0 [pid 5274] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5273] <... memfd_create resumed>) = 3 [pid 5272] <... memfd_create resumed>) = 3 [pid 5273] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5274] <... mmap resumed>) = 0x7faaa11e5000 [pid 5273] <... mmap resumed>) = 0x7faaa11e5000 [pid 5272] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7faaa11e5000 [pid 4997] <... umount2 resumed>) = 0 [pid 4997] umount2("./21/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4997] lstat("./21/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4997] umount2("./21/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4997] openat(AT_FDCWD, "./21/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 4997] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4997] getdents64(4, 0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4997] getdents64(4, 0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4997] close(4) = 0 [pid 4997] rmdir("./21/file0") = 0 [pid 4997] getdents64(3, 0x555557087620 /* 0 entries */, 32768) = 0 [pid 4997] close(3) = 0 [pid 5271] <... write resumed>) = 4194304 [pid 4997] rmdir("./21") = 0 [pid 4997] mkdir("./22", 0777) = 0 [pid 4997] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 4997] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 4997] close(3) = 0 [pid 4997] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570865d0) = 5275 [pid 5271] munmap(0x7faaa11e5000, 4194304./strace-static-x86_64: Process 5275 attached [pid 5275] chdir("./22") = 0 [pid 5275] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5275] setpgid(0, 0) = 0 [pid 5275] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5275] write(3, "1000", 4) = 4 [pid 5275] close(3) = 0 [pid 5275] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5271] <... munmap resumed>) = 0 [pid 5271] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 5271] ioctl(4, LOOP_SET_FD, 3 [pid 5275] memfd_create("syzkaller", 0) = 3 [pid 5272] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5275] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7faaa11e5000 [pid 5271] <... ioctl resumed>) = 0 [pid 5271] close(3 [pid 5273] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5271] <... close resumed>) = 0 [pid 5271] mkdir("./file0", 0777) = 0 [pid 4996] <... umount2 resumed>) = 0 [pid 5271] mount("/dev/loop5", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 4996] umount2("./21/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4996] lstat("./21/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4996] umount2("./21/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4996] openat(AT_FDCWD, "./21/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [ 98.257892][ T5271] loop5: detected capacity change from 0 to 8192 [pid 4996] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5274] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 4996] getdents64(4, 0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4996] getdents64(4, 0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4996] close(4) = 0 [pid 4996] rmdir("./21/file0") = 0 [pid 4996] getdents64(3, 0x555557087620 /* 0 entries */, 32768) = 0 [pid 4996] close(3) = 0 [pid 4996] rmdir("./21") = 0 [pid 4996] mkdir("./22", 0777 [pid 5275] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 4996] <... mkdir resumed>) = 0 [pid 4996] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 4996] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 4996] close(3) = 0 [pid 4996] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570865d0) = 5277 [pid 5272] <... write resumed>) = 4194304 [ 98.305269][ T5271] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5272] munmap(0x7faaa11e5000, 4194304./strace-static-x86_64: Process 5277 attached [pid 5277] chdir("./22") = 0 [pid 5277] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5272] <... munmap resumed>) = 0 [pid 5272] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 5272] ioctl(4, LOOP_SET_FD, 3 [pid 5277] setpgid(0, 0) = 0 [pid 5277] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5277] write(3, "1000", 4) = 4 [pid 5277] close(3) = 0 [pid 5277] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5277] memfd_create("syzkaller", 0) = 3 [pid 5277] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7faaa11e5000 [pid 5272] <... ioctl resumed>) = 0 [pid 5272] close(3) = 0 [pid 5272] mkdir("./file0", 0777) = 0 [ 98.366192][ T5271] REISERFS (device loop5): found reiserfs format "3.5" with non-standard journal [ 98.376150][ T5271] REISERFS (device loop5): using ordered data mode [ 98.382687][ T5271] reiserfs: using flush barriers [ 98.390560][ T5271] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 98.406935][ T5272] loop3: detected capacity change from 0 to 8192 [pid 5272] mount("/dev/loop3", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5275] <... write resumed>) = 4194304 [pid 5273] <... write resumed>) = 4194304 [pid 5275] munmap(0x7faaa11e5000, 4194304 [pid 5273] munmap(0x7faaa11e5000, 4194304 [pid 5275] <... munmap resumed>) = 0 [pid 5273] <... munmap resumed>) = 0 [ 98.414224][ T5271] REISERFS (device loop5): checking transaction log (loop5) [ 98.422403][ T5272] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 98.436020][ T5271] REISERFS (device loop5): Using tea hash to sort names [ 98.455766][ T5272] REISERFS (device loop3): found reiserfs format "3.5" with non-standard journal [pid 5275] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5273] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5275] <... openat resumed>) = 4 [pid 5273] <... openat resumed>) = 4 [pid 5271] <... mount resumed>) = 0 [pid 5275] ioctl(4, LOOP_SET_FD, 3 [pid 5273] ioctl(4, LOOP_SET_FD, 3 [pid 5271] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5275] <... ioctl resumed>) = 0 [pid 5277] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5271] <... openat resumed>) = 3 [pid 5274] <... write resumed>) = 4194304 [pid 5271] chdir("./file0" [pid 5274] munmap(0x7faaa11e5000, 4194304 [pid 5271] <... chdir resumed>) = 0 [pid 5271] ioctl(4, LOOP_CLR_FD) = 0 [pid 5271] close(4 [pid 5275] close(3 [pid 5274] <... munmap resumed>) = 0 [pid 5273] <... ioctl resumed>) = 0 [pid 5271] <... close resumed>) = 0 [pid 5275] <... close resumed>) = 0 [pid 5274] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5273] close(3 [pid 5271] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5275] mkdir("./file0", 0777 [pid 5274] <... openat resumed>) = 4 [pid 5273] <... close resumed>) = 0 [pid 5271] <... openat resumed>) = 4 [ 98.457445][ T5271] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 98.475610][ T5275] loop2: detected capacity change from 0 to 8192 [ 98.478669][ T5272] REISERFS (device loop3): using ordered data mode [ 98.482216][ T5273] loop0: detected capacity change from 0 to 8192 [ 98.497526][ T5272] reiserfs: using flush barriers [pid 5275] <... mkdir resumed>) = 0 [pid 5274] ioctl(4, LOOP_SET_FD, 3 [pid 5273] mkdir("./file0", 0777 [pid 5271] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 5275] mount("/dev/loop2", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5273] <... mkdir resumed>) = 0 [pid 5271] <... mmap resumed>) = 0x20000000 [pid 5273] mount("/dev/loop0", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5271] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5271] exit_group(0) = ? [pid 5271] +++ exited with 0 +++ [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5271, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- [pid 5000] umount2("./21", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./21", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5000] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] getdents64(3, 0x555557087620 /* 4 entries */, 32768) = 112 [pid 5000] umount2("./21/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./21/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] unlink("./21/binderfs") = 0 [pid 5000] umount2("./21/file0", MNT_DETACH|UMOUNT_NOFOLLOW [ 98.503904][ T5272] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 98.508760][ T5274] loop4: detected capacity change from 0 to 8192 [ 98.520849][ T5272] REISERFS (device loop3): checking transaction log (loop3) [ 98.537975][ T5272] REISERFS (device loop3): Using tea hash to sort names [ 98.555146][ T5272] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [pid 5272] <... mount resumed>) = 0 [pid 5277] <... write resumed>) = 4194304 [pid 5274] <... ioctl resumed>) = 0 [pid 5272] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5277] munmap(0x7faaa11e5000, 4194304 [pid 5274] close(3 [pid 5272] <... openat resumed>) = 3 [pid 5277] <... munmap resumed>) = 0 [pid 5274] <... close resumed>) = 0 [pid 5272] chdir("./file0" [pid 5277] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5274] mkdir("./file0", 0777 [pid 5272] <... chdir resumed>) = 0 [pid 5277] <... openat resumed>) = 4 [pid 5274] <... mkdir resumed>) = 0 [pid 5272] ioctl(4, LOOP_CLR_FD [pid 5277] ioctl(4, LOOP_SET_FD, 3 [pid 5274] mount("/dev/loop4", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5272] <... ioctl resumed>) = 0 [pid 5272] close(4) = 0 [pid 5272] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5272] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0) = 0x20000000 [pid 5272] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5272] exit_group(0) = ? [pid 5272] +++ exited with 0 +++ [pid 5277] <... ioctl resumed>) = 0 [pid 5277] close(3) = 0 [pid 5277] mkdir("./file0", 0777) = 0 [pid 5277] mount("/dev/loop1", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5272, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- [pid 4998] umount2("./22", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./22", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 4998] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] getdents64(3, 0x555557087620 /* 4 entries */, 32768) = 112 [pid 4998] umount2("./22/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./22/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4998] unlink("./22/binderfs") = 0 [ 98.574495][ T5275] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 98.578438][ T5277] loop1: detected capacity change from 0 to 8192 [ 98.587628][ T5273] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 98.615285][ T5275] REISERFS (device loop2): found reiserfs format "3.5" with non-standard journal [pid 4998] umount2("./22/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] <... umount2 resumed>) = 0 [pid 5000] umount2("./21/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./21/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] umount2("./21/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./21/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5000] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] getdents64(4, 0x55555708f660 /* 2 entries */, 32768) = 48 [pid 5000] getdents64(4, 0x55555708f660 /* 0 entries */, 32768) = 0 [pid 5000] close(4) = 0 [pid 5000] rmdir("./21/file0") = 0 [ 98.625242][ T5275] REISERFS (device loop2): using ordered data mode [ 98.632177][ T5277] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 98.646843][ T5274] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 98.647358][ T5275] reiserfs: using flush barriers [pid 5000] getdents64(3, 0x555557087620 /* 0 entries */, 32768) = 0 [pid 5000] close(3) = 0 [pid 5000] rmdir("./21") = 0 [pid 5000] mkdir("./22", 0777) = 0 [pid 5000] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5000] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5000] close(3) = 0 [pid 5000] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5283 attached [pid 5283] chdir("./22") = 0 [pid 5283] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5000] <... clone resumed>, child_tidptr=0x5555570865d0) = 5283 [ 98.671227][ T5273] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 98.677467][ T5275] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 98.701187][ T5275] REISERFS (device loop2): checking transaction log (loop2) [ 98.710667][ T5275] REISERFS (device loop2): Using tea hash to sort names [pid 5283] setpgid(0, 0) = 0 [pid 5275] <... mount resumed>) = 0 [pid 5283] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5275] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5283] write(3, "1000", 4 [pid 5275] <... openat resumed>) = 3 [pid 5283] <... write resumed>) = 4 [ 98.717545][ T5277] REISERFS (device loop1): found reiserfs format "3.5" with non-standard journal [ 98.718288][ T5275] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 98.736361][ T5274] REISERFS (device loop4): found reiserfs format "3.5" with non-standard journal [ 98.752227][ T5274] REISERFS (device loop4): using ordered data mode [ 98.759167][ T5274] reiserfs: using flush barriers [ 98.765493][ T5273] REISERFS (device loop0): using ordered data mode [pid 5275] chdir("./file0" [pid 5283] close(3 [pid 5275] <... chdir resumed>) = 0 [pid 4998] <... umount2 resumed>) = 0 [pid 5283] <... close resumed>) = 0 [pid 5275] ioctl(4, LOOP_CLR_FD [pid 5283] symlink("/dev/binderfs", "./binderfs" [pid 5275] <... ioctl resumed>) = 0 [pid 5283] <... symlink resumed>) = 0 [pid 5275] close(4 [pid 5283] memfd_create("syzkaller", 0 [pid 5275] <... close resumed>) = 0 [pid 5283] <... memfd_create resumed>) = 3 [pid 5275] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5283] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5275] <... openat resumed>) = 4 [pid 5283] <... mmap resumed>) = 0x7faaa11e5000 [pid 5275] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0) = 0x20000000 [pid 4998] umount2("./22/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5275] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5275] exit_group(0) = ? [pid 5275] +++ exited with 0 +++ [pid 4997] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5275, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=11 /* 0.11 s */} --- [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4997] umount2("./22", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./22/file0", [pid 4997] openat(AT_FDCWD, "./22", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 4998] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4997] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] umount2("./22/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4997] getdents64(3, 0x555557087620 /* 4 entries */, 32768) = 112 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4997] umount2("./22/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] openat(AT_FDCWD, "./22/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4997] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] <... openat resumed>) = 4 [pid 4997] lstat("./22/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4998] fstat(4, [pid 4997] unlink("./22/binderfs") = 0 [pid 4997] umount2("./22/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] getdents64(4, 0x55555708f660 /* 2 entries */, 32768) = 48 [ 98.765654][ T5274] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 98.772047][ T5273] reiserfs: using flush barriers [ 98.788973][ T5274] REISERFS (device loop4): checking transaction log (loop4) [ 98.798889][ T5277] REISERFS (device loop1): using ordered data mode [ 98.815305][ T5277] reiserfs: using flush barriers [pid 4998] getdents64(4, [pid 5283] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 4998] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4998] close(4) = 0 [pid 4998] rmdir("./22/file0") = 0 [pid 4998] getdents64(3, 0x555557087620 /* 0 entries */, 32768) = 0 [pid 4998] close(3) = 0 [pid 4998] rmdir("./22") = 0 [pid 4998] mkdir("./23", 0777) = 0 [pid 4998] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 4998] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [ 98.829535][ T5277] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 98.840797][ T5274] REISERFS (device loop4): Using tea hash to sort names [ 98.846346][ T5277] REISERFS (device loop1): checking transaction log (loop1) [ 98.861025][ T5274] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [pid 4998] close(3) = 0 [pid 4998] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570865d0) = 5284 [pid 5274] <... mount resumed>) = 0 [pid 5274] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 ./strace-static-x86_64: Process 5284 attached [pid 5274] chdir("./file0") = 0 [pid 5274] ioctl(4, LOOP_CLR_FD) = 0 [pid 5274] close(4 [pid 5284] chdir("./23") = 0 [pid 5284] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5284] setpgid(0, 0) = 0 [pid 5284] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5284] write(3, "1000", 4) = 4 [pid 5284] close(3) = 0 [pid 5284] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5284] memfd_create("syzkaller", 0 [pid 5274] <... close resumed>) = 0 [pid 5284] <... memfd_create resumed>) = 3 [pid 5284] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7faaa11e5000 [pid 5274] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5274] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 5277] <... mount resumed>) = 0 [pid 5274] <... mmap resumed>) = 0x20000000 [pid 5277] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5274] ioctl(4, FS_IOC_GETVERSION [pid 5277] <... openat resumed>) = 3 [pid 5274] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [ 98.875303][ T5273] 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 [ 98.891708][ T5277] REISERFS (device loop1): Using tea hash to sort names [ 98.905241][ T5277] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [pid 5274] exit_group(0) = ? [pid 5274] +++ exited with 0 +++ [pid 5277] chdir("./file0" [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5274, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=15 /* 0.15 s */} --- [pid 4997] <... umount2 resumed>) = 0 [pid 5277] <... chdir resumed>) = 0 [pid 5277] ioctl(4, LOOP_CLR_FD) = 0 [pid 4999] umount2("./23", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5277] close(4 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5283] <... write resumed>) = 4194304 [pid 5277] <... close resumed>) = 0 [pid 4999] openat(AT_FDCWD, "./23", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 4999] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] getdents64(3, 0x555557087620 /* 4 entries */, 32768) = 112 [pid 5277] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4999] umount2("./23/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5277] <... openat resumed>) = 4 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5277] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 4999] lstat("./23/binderfs", [pid 5283] munmap(0x7faaa11e5000, 4194304 [pid 5277] <... mmap resumed>) = 0x20000000 [pid 4999] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5277] ioctl(4, FS_IOC_GETVERSION [pid 4999] unlink("./23/binderfs" [pid 5283] <... munmap resumed>) = 0 [pid 5277] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 4999] <... unlink resumed>) = 0 [pid 5283] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5277] exit_group(0 [pid 4999] umount2("./23/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5283] <... openat resumed>) = 4 [pid 5277] <... exit_group resumed>) = ? [pid 4997] umount2("./22/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5277] +++ exited with 0 +++ [pid 4996] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5277, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- [pid 4996] umount2("./22", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4996] openat(AT_FDCWD, "./22", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5283] ioctl(4, LOOP_SET_FD, 3 [pid 4996] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [ 98.957762][ T5273] REISERFS (device loop0): checking transaction log (loop0) [ 98.975525][ T5273] REISERFS (device loop0): Using tea hash to sort names [pid 4996] getdents64(3, 0x555557087620 /* 4 entries */, 32768) = 112 [pid 4996] umount2("./22/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4996] lstat("./22/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4996] unlink("./22/binderfs") = 0 [pid 4996] umount2("./22/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4997] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4997] lstat("./22/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5284] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 4997] umount2("./22/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4997] openat(AT_FDCWD, "./22/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 4997] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4997] getdents64(4, 0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4997] getdents64(4, 0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4997] close(4) = 0 [pid 4997] rmdir("./22/file0") = 0 [pid 4997] getdents64(3, 0x555557087620 /* 0 entries */, 32768) = 0 [pid 4997] close(3) = 0 [pid 4997] rmdir("./22") = 0 [pid 4997] mkdir("./23", 0777) = 0 [pid 4997] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5283] <... ioctl resumed>) = 0 [pid 4997] <... openat resumed>) = 3 [pid 5283] close(3 [pid 5273] <... mount resumed>) = 0 [pid 4997] ioctl(3, LOOP_CLR_FD [pid 5283] <... close resumed>) = 0 [pid 5273] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 4997] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5283] mkdir("./file0", 0777 [pid 5273] <... openat resumed>) = 3 [pid 4997] close(3 [pid 5283] <... mkdir resumed>) = 0 [pid 5273] chdir("./file0" [pid 4997] <... close resumed>) = 0 [pid 5283] mount("/dev/loop5", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5273] <... chdir resumed>) = 0 [pid 4997] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5273] ioctl(4, LOOP_CLR_FD) = 0 [ 98.998817][ T5283] loop5: detected capacity change from 0 to 8192 [ 99.025103][ T5273] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 4997] <... clone resumed>, child_tidptr=0x5555570865d0) = 5286 [pid 5273] close(4 [pid 4999] <... umount2 resumed>) = 0 [pid 5284] <... write resumed>) = 4194304 [pid 5273] <... close resumed>) = 0 [pid 4999] umount2("./23/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5273] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5273] <... openat resumed>) = 4 [pid 4999] lstat("./23/file0", [pid 5273] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 4999] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5273] <... mmap resumed>) = 0x20000000 [pid 4999] umount2("./23/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5273] ioctl(4, FS_IOC_GETVERSION [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5273] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 4999] openat(AT_FDCWD, "./23/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5273] exit_group(0 [pid 4999] <... openat resumed>) = 4 [pid 5273] <... exit_group resumed>) = ? [pid 4999] fstat(4, ./strace-static-x86_64: Process 5286 attached [pid 5273] +++ exited with 0 +++ [pid 4999] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] getdents64(4, 0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4999] getdents64(4, 0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4999] close(4) = 0 [pid 4999] rmdir("./23/file0") = 0 [pid 4999] getdents64(3, 0x555557087620 /* 0 entries */, 32768) = 0 [pid 4999] close(3) = 0 [pid 4999] rmdir("./23") = 0 [pid 4999] mkdir("./24", 0777) = 0 [pid 4999] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 4999] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 4999] close(3) = 0 [pid 4999] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570865d0) = 5287 [pid 5286] chdir("./23"./strace-static-x86_64: Process 5287 attached [pid 5287] chdir("./24") = 0 [pid 5287] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5287] setpgid(0, 0) = 0 [pid 5287] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5286] <... chdir resumed>) = 0 [pid 4995] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5273, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=10 /* 0.10 s */} --- [pid 5286] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5286] setpgid(0, 0 [pid 5287] write(3, "1000", 4 [pid 5286] <... setpgid resumed>) = 0 [pid 4995] umount2("./22", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5287] <... write resumed>) = 4 [pid 5287] close(3) = 0 [pid 5287] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5287] memfd_create("syzkaller", 0) = 3 [pid 5287] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7faaa11e5000 [pid 5286] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4995] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5286] <... openat resumed>) = 3 [ 99.062090][ T5283] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 99.077018][ T5283] REISERFS (device loop5): found reiserfs format "3.5" with non-standard journal [ 99.087417][ T5283] REISERFS (device loop5): using ordered data mode [ 99.094759][ T5283] reiserfs: using flush barriers [pid 4995] openat(AT_FDCWD, "./22", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5286] write(3, "1000", 4 [pid 4995] <... openat resumed>) = 3 [pid 5284] munmap(0x7faaa11e5000, 4194304) = 0 [pid 5284] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 5284] ioctl(4, LOOP_SET_FD, 3 [pid 5286] <... write resumed>) = 4 [pid 4995] fstat(3, [pid 5286] close(3 [pid 4995] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5286] <... close resumed>) = 0 [pid 4995] getdents64(3, [pid 5286] symlink("/dev/binderfs", "./binderfs" [pid 4995] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 4996] <... umount2 resumed>) = 0 [pid 4996] umount2("./22/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5286] <... symlink resumed>) = 0 [pid 4995] umount2("./22/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4996] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5286] memfd_create("syzkaller", 0 [pid 4995] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4996] lstat("./22/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4995] lstat("./22/binderfs", [pid 5286] <... memfd_create resumed>) = 3 [pid 4995] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4996] umount2("./22/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5286] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 4995] unlink("./22/binderfs" [pid 4996] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4996] openat(AT_FDCWD, "./22/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5286] <... mmap resumed>) = 0x7faaa11e5000 [pid 4995] <... unlink resumed>) = 0 [pid 4996] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4996] getdents64(4, 0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4996] getdents64(4, 0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4996] close(4) = 0 [pid 4996] rmdir("./22/file0") = 0 [pid 4995] umount2("./22/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4996] getdents64(3, 0x555557087620 /* 0 entries */, 32768) = 0 [pid 4996] close(3) = 0 [pid 4996] rmdir("./22") = 0 [pid 4996] mkdir("./23", 0777) = 0 [pid 4996] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 4996] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 4996] close(3) = 0 [pid 4996] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570865d0) = 5288 [ 99.104180][ T5283] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 99.114605][ T5284] loop3: detected capacity change from 0 to 8192 [ 99.128128][ T5283] REISERFS (device loop5): checking transaction log (loop5) ./strace-static-x86_64: Process 5288 attached [pid 5288] chdir("./23") = 0 [pid 5288] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5288] setpgid(0, 0) = 0 [pid 5288] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4995] <... umount2 resumed>) = 0 [pid 4995] umount2("./22/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5288] <... openat resumed>) = 3 [pid 5288] write(3, "1000", 4) = 4 [pid 5288] close(3) = 0 [pid 5288] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5288] memfd_create("syzkaller", 0) = 3 [pid 4995] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5288] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7faaa11e5000 [pid 4995] lstat("./22/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4995] umount2("./22/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4995] openat(AT_FDCWD, "./22/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 4995] fstat(4, [pid 5284] <... ioctl resumed>) = 0 [pid 4995] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5284] close(3) = 0 [pid 4995] getdents64(4, [pid 5284] mkdir("./file0", 0777 [pid 4995] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 5284] <... mkdir resumed>) = 0 [pid 4995] getdents64(4, [pid 5286] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5284] mount("/dev/loop3", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5283] <... mount resumed>) = 0 [pid 5287] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5283] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 4995] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 5283] <... openat resumed>) = 3 [ 99.160819][ T5283] REISERFS (device loop5): Using tea hash to sort names [ 99.185123][ T5283] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 4995] close(4) = 0 [pid 5283] chdir("./file0" [pid 4995] rmdir("./22/file0" [pid 5283] <... chdir resumed>) = 0 [pid 4995] <... rmdir resumed>) = 0 [pid 5283] ioctl(4, LOOP_CLR_FD) = 0 [pid 4995] getdents64(3, [pid 5283] close(4 [pid 4995] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 5283] <... close resumed>) = 0 [pid 4995] close(3 [pid 5283] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4995] <... close resumed>) = 0 [pid 5283] <... openat resumed>) = 4 [pid 5283] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 4995] rmdir("./22") = 0 [pid 5283] <... mmap resumed>) = 0x20000000 [pid 4995] mkdir("./23", 0777) = 0 [pid 5283] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 4995] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5283] exit_group(0 [pid 4995] <... openat resumed>) = 3 [pid 5283] <... exit_group resumed>) = ? [pid 4995] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 4995] close(3) = 0 [pid 5283] +++ exited with 0 +++ [pid 4995] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5283, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=9 /* 0.09 s */} --- [pid 5000] umount2("./22", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./22", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5000] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] getdents64(3, 0x555557087620 /* 4 entries */, 32768) = 112 [pid 5000] umount2("./22/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./22/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] unlink("./22/binderfs") = 0 [pid 5000] umount2("./22/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5290 attached [pid 4995] <... clone resumed>, child_tidptr=0x5555570865d0) = 5290 [pid 5290] chdir("./23") = 0 [pid 5290] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5290] setpgid(0, 0) = 0 [pid 5290] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5290] write(3, "1000", 4) = 4 [pid 5290] close(3) = 0 [pid 5290] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5290] memfd_create("syzkaller", 0) = 3 [pid 5290] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7faaa11e5000 [ 99.223535][ T5284] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5290] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5286] <... write resumed>) = 4194304 [pid 5286] munmap(0x7faaa11e5000, 4194304) = 0 [pid 5286] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5286] ioctl(4, LOOP_SET_FD, 3 [pid 5288] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5287] <... write resumed>) = 4194304 [pid 5286] <... ioctl resumed>) = 0 [pid 5286] close(3) = 0 [pid 5286] mkdir("./file0", 0777) = 0 [pid 5286] mount("/dev/loop2", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [ 99.290952][ T5284] REISERFS (device loop3): found reiserfs format "3.5" with non-standard journal [ 99.325399][ T5286] loop2: detected capacity change from 0 to 8192 [pid 5287] munmap(0x7faaa11e5000, 4194304 [pid 5000] <... umount2 resumed>) = 0 [pid 5000] umount2("./22/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./22/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5287] <... munmap resumed>) = 0 [pid 5287] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5000] umount2("./22/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./22/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5000] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] getdents64(4, 0x55555708f660 /* 2 entries */, 32768) = 48 [pid 5287] <... openat resumed>) = 4 [pid 5000] getdents64(4, 0x55555708f660 /* 0 entries */, 32768) = 0 [pid 5000] close(4) = 0 [pid 5000] rmdir("./22/file0" [pid 5287] ioctl(4, LOOP_SET_FD, 3 [pid 5000] <... rmdir resumed>) = 0 [pid 5000] getdents64(3, 0x555557087620 /* 0 entries */, 32768) = 0 [pid 5000] close(3) = 0 [pid 5000] rmdir("./22") = 0 [pid 5000] mkdir("./23", 0777) = 0 [pid 5000] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5000] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5000] close(3) = 0 [pid 5000] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570865d0) = 5292 [ 99.335066][ T5284] REISERFS (device loop3): using ordered data mode [ 99.342510][ T5284] reiserfs: using flush barriers [ 99.343848][ T5286] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 99.361235][ T5284] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 99.383496][ T5287] loop4: detected capacity change from 0 to 8192 ./strace-static-x86_64: Process 5292 attached [pid 5292] chdir("./23") = 0 [pid 5292] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5292] setpgid(0, 0) = 0 [ 99.388243][ T5284] REISERFS (device loop3): checking transaction log (loop3) [ 99.403827][ T5284] REISERFS (device loop3): Using tea hash to sort names [ 99.415008][ T5286] REISERFS (device loop2): found reiserfs format "3.5" with non-standard journal [ 99.424896][ T5286] REISERFS (device loop2): using ordered data mode [ 99.428254][ T5284] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [pid 5292] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5292] write(3, "1000", 4 [pid 5287] <... ioctl resumed>) = 0 [pid 5292] <... write resumed>) = 4 [pid 5287] close(3 [pid 5292] close(3 [pid 5287] <... close resumed>) = 0 [pid 5287] mkdir("./file0", 0777 [pid 5292] <... close resumed>) = 0 [pid 5284] <... mount resumed>) = 0 [pid 5287] <... mkdir resumed>) = 0 [pid 5284] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5292] symlink("/dev/binderfs", "./binderfs" [pid 5284] <... openat resumed>) = 3 [pid 5284] chdir("./file0") = 0 [pid 5284] ioctl(4, LOOP_CLR_FD) = 0 [pid 5284] close(4 [pid 5292] <... symlink resumed>) = 0 [pid 5284] <... close resumed>) = 0 [pid 5292] memfd_create("syzkaller", 0 [pid 5287] mount("/dev/loop4", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5284] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5284] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 5292] <... memfd_create resumed>) = 3 [ 99.431407][ T5286] reiserfs: using flush barriers [ 99.440701][ T5286] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 99.462430][ T5286] REISERFS (device loop2): checking transaction log (loop2) [ 99.473201][ T5286] REISERFS (device loop2): Using tea hash to sort names [pid 5292] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7faaa11e5000 [pid 5284] <... mmap resumed>) = 0x20000000 [pid 5284] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5284] exit_group(0) = ? [pid 5284] +++ exited with 0 +++ [pid 5288] <... write resumed>) = 4194304 [pid 5288] munmap(0x7faaa11e5000, 4194304 [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5284, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=12 /* 0.12 s */} --- [pid 4998] umount2("./23", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5288] <... munmap resumed>) = 0 [pid 5288] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5288] ioctl(4, LOOP_SET_FD, 3 [pid 4998] openat(AT_FDCWD, "./23", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5288] <... ioctl resumed>) = 0 [pid 5288] close(3) = 0 [pid 5288] mkdir("./file0", 0777) = 0 [pid 5290] <... write resumed>) = 4194304 [pid 4998] <... openat resumed>) = 3 [pid 5290] munmap(0x7faaa11e5000, 4194304 [pid 5288] mount("/dev/loop1", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5290] <... munmap resumed>) = 0 [pid 4998] fstat(3, [pid 5290] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5290] ioctl(4, LOOP_SET_FD, 3 [pid 4998] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5286] <... mount resumed>) = 0 [pid 4998] getdents64(3, [pid 5286] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 4998] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 5286] <... openat resumed>) = 3 [pid 5286] chdir("./file0") = 0 [pid 5286] ioctl(4, LOOP_CLR_FD) = 0 [pid 5286] close(4) = 0 [pid 5286] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4998] umount2("./23/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5286] <... openat resumed>) = 4 [pid 5286] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0) = 0x20000000 [pid 5286] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5290] <... ioctl resumed>) = 0 [pid 5290] close(3) = 0 [pid 5290] mkdir("./file0", 0777 [pid 5286] exit_group(0 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./23/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5286] <... exit_group resumed>) = ? [pid 4998] unlink("./23/binderfs" [pid 5290] <... mkdir resumed>) = 0 [pid 4998] <... unlink resumed>) = 0 [pid 4998] umount2("./23/file0", MNT_DETACH|UMOUNT_NOFOLLOW [ 99.496566][ T5287] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 99.497756][ T5288] loop1: detected capacity change from 0 to 8192 [ 99.521961][ T5286] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 99.534039][ T5290] loop0: detected capacity change from 0 to 8192 [pid 5290] mount("/dev/loop0", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5286] +++ exited with 0 +++ [pid 4997] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5286, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=9 /* 0.09 s */} --- [pid 4997] umount2("./23", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 99.549354][ T5287] REISERFS (device loop4): found reiserfs format "3.5" with non-standard journal [ 99.559145][ T5287] REISERFS (device loop4): using ordered data mode [ 99.566028][ T5287] reiserfs: using flush barriers [ 99.572231][ T5288] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 4997] openat(AT_FDCWD, "./23", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5292] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5292] munmap(0x7faaa11e5000, 4194304 [pid 4997] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4997] getdents64(3, 0x555557087620 /* 4 entries */, 32768) = 112 [pid 4997] umount2("./23/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5292] <... munmap resumed>) = 0 [pid 5292] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 5292] ioctl(4, LOOP_SET_FD, 3 [pid 4997] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5292] <... ioctl resumed>) = 0 [pid 5292] close(3) = 0 [pid 5292] mkdir("./file0", 0777 [pid 4997] lstat("./23/binderfs", [pid 5292] <... mkdir resumed>) = 0 [pid 5292] mount("/dev/loop5", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 4997] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4997] unlink("./23/binderfs") = 0 [ 99.586094][ T5287] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 99.604408][ T5292] loop5: detected capacity change from 0 to 8192 [ 99.614895][ T5290] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 99.621359][ T5288] REISERFS (device loop1): found reiserfs format "3.5" with non-standard journal [ 99.627961][ T5292] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 4997] umount2("./23/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] <... umount2 resumed>) = 0 [pid 4998] umount2("./23/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./23/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] umount2("./23/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./23/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 4998] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] getdents64(4, 0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4998] getdents64(4, 0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4998] close(4) = 0 [pid 4998] rmdir("./23/file0") = 0 [pid 4998] getdents64(3, 0x555557087620 /* 0 entries */, 32768) = 0 [pid 4998] close(3) = 0 [pid 4998] rmdir("./23") = 0 [pid 4998] mkdir("./24", 0777) = 0 [pid 4998] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 4998] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 4998] close(3) = 0 [pid 4998] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570865d0) = 5297 ./strace-static-x86_64: Process 5297 attached [pid 5297] chdir("./24") = 0 [pid 5297] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5297] setpgid(0, 0) = 0 [pid 5297] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5297] write(3, "1000", 4) = 4 [pid 5297] close(3) = 0 [pid 5297] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5297] memfd_create("syzkaller", 0) = 3 [pid 5297] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7faaa11e5000 [ 99.637628][ T5287] REISERFS (device loop4): checking transaction log (loop4) [ 99.657831][ T5290] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 99.677514][ T5292] REISERFS (device loop5): found reiserfs format "3.5" with non-standard journal [ 99.684029][ T5288] REISERFS (device loop1): using ordered data mode [ 99.687463][ T5290] REISERFS (device loop0): using ordered data mode [ 99.711860][ T5292] REISERFS (device loop5): using ordered data mode [ 99.725174][ T5290] reiserfs: using flush barriers [ 99.726187][ T5288] reiserfs: using flush barriers [ 99.734336][ T5292] reiserfs: using flush barriers [pid 5297] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 4997] <... umount2 resumed>) = 0 [pid 4997] umount2("./23/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4997] lstat("./23/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4997] umount2("./23/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4997] openat(AT_FDCWD, "./23/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 4997] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4997] getdents64(4, 0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4997] getdents64(4, 0x55555708f660 /* 0 entries */, 32768) = 0 [ 99.754869][ T5288] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 99.771433][ T5290] 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 [ 99.773299][ T5288] REISERFS (device loop1): checking transaction log (loop1) [ 99.787758][ T5292] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 4997] close(4) = 0 [pid 4997] rmdir("./23/file0") = 0 [pid 4997] getdents64(3, 0x555557087620 /* 0 entries */, 32768) = 0 [pid 4997] close(3) = 0 [pid 4997] rmdir("./23") = 0 [pid 4997] mkdir("./24", 0777) = 0 [pid 4997] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 4997] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 4997] close(3) = 0 [pid 4997] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570865d0) = 5298 ./strace-static-x86_64: Process 5298 attached [ 99.811745][ T5287] REISERFS (device loop4): Using tea hash to sort names [ 99.819115][ T5288] REISERFS (device loop1): Using tea hash to sort names [ 99.819338][ T5287] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 99.835593][ T5290] REISERFS (device loop0): checking transaction log (loop0) [ 99.843684][ T5290] REISERFS (device loop0): Using tea hash to sort names [ 99.851352][ T5292] REISERFS (device loop5): checking transaction log (loop5) [pid 5298] chdir("./24") = 0 [pid 5287] <... mount resumed>) = 0 [pid 5298] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5287] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5298] <... prctl resumed>) = 0 [pid 5298] setpgid(0, 0 [pid 5287] <... openat resumed>) = 3 [pid 5298] <... setpgid resumed>) = 0 [pid 5292] <... mount resumed>) = 0 [pid 5290] <... mount resumed>) = 0 [pid 5288] <... mount resumed>) = 0 [pid 5287] chdir("./file0" [pid 5298] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5292] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5290] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5288] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5287] <... chdir resumed>) = 0 [pid 5298] <... openat resumed>) = 3 [pid 5297] <... write resumed>) = 4194304 [pid 5292] <... openat resumed>) = 3 [pid 5290] <... openat resumed>) = 3 [pid 5288] <... openat resumed>) = 3 [pid 5287] ioctl(4, LOOP_CLR_FD [pid 5298] write(3, "1000", 4 [pid 5297] munmap(0x7faaa11e5000, 4194304 [pid 5292] chdir("./file0" [pid 5290] chdir("./file0" [pid 5288] chdir("./file0" [pid 5287] <... ioctl resumed>) = 0 [pid 5298] <... write resumed>) = 4 [pid 5292] <... chdir resumed>) = 0 [pid 5290] <... chdir resumed>) = 0 [pid 5288] <... chdir resumed>) = 0 [pid 5287] close(4 [pid 5298] close(3 [pid 5297] <... munmap resumed>) = 0 [pid 5292] ioctl(4, LOOP_CLR_FD [pid 5290] ioctl(4, LOOP_CLR_FD [pid 5288] ioctl(4, LOOP_CLR_FD [pid 5287] <... close resumed>) = 0 [pid 5298] <... close resumed>) = 0 [pid 5292] <... ioctl resumed>) = 0 [pid 5290] <... ioctl resumed>) = 0 [pid 5288] <... ioctl resumed>) = 0 [pid 5287] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5298] symlink("/dev/binderfs", "./binderfs" [pid 5292] close(4 [pid 5290] close(4 [pid 5288] close(4 [pid 5287] <... openat resumed>) = 4 [pid 5298] <... symlink resumed>) = 0 [pid 5292] <... close resumed>) = 0 [pid 5290] <... close resumed>) = 0 [pid 5288] <... close resumed>) = 0 [pid 5287] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 5298] memfd_create("syzkaller", 0 [pid 5292] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5290] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5288] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5287] <... mmap resumed>) = 0x20000000 [pid 5298] <... memfd_create resumed>) = 3 [pid 5297] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5292] <... openat resumed>) = 4 [pid 5290] <... openat resumed>) = 4 [pid 5288] <... openat resumed>) = 4 [pid 5287] ioctl(4, FS_IOC_GETVERSION [pid 5298] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5297] <... openat resumed>) = 4 [pid 5292] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 5290] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 5288] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 5287] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5298] <... mmap resumed>) = 0x7faaa11e5000 [pid 5297] ioctl(4, LOOP_SET_FD, 3 [pid 5292] <... mmap resumed>) = 0x20000000 [pid 5290] <... mmap resumed>) = 0x20000000 [pid 5288] <... mmap resumed>) = 0x20000000 [ 99.851962][ T5288] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 99.859502][ T5290] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 99.878121][ T5292] REISERFS (device loop5): Using tea hash to sort names [ 99.885633][ T5292] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 5287] exit_group(0 [pid 5292] ioctl(4, FS_IOC_GETVERSION [pid 5290] ioctl(4, FS_IOC_GETVERSION [pid 5288] ioctl(4, FS_IOC_GETVERSION [pid 5287] <... exit_group resumed>) = ? [pid 5292] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5287] +++ exited with 0 +++ [pid 5292] exit_group(0 [pid 5290] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5288] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5292] <... exit_group resumed>) = ? [pid 5290] exit_group(0 [pid 5288] exit_group(0 [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5287, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=12 /* 0.12 s */} --- [pid 4999] restart_syscall(<... resuming interrupted clone ...> [pid 5292] +++ exited with 0 +++ [pid 4999] <... restart_syscall resumed>) = 0 [pid 5288] <... exit_group resumed>) = ? [pid 5290] <... exit_group resumed>) = ? [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5292, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=12 /* 0.12 s */} --- [pid 5288] +++ exited with 0 +++ [pid 5000] umount2("./23", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] umount2("./24", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5290] +++ exited with 0 +++ [pid 5000] openat(AT_FDCWD, "./23", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4999] openat(AT_FDCWD, "./24", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5000] <... openat resumed>) = 3 [pid 4999] <... openat resumed>) = 3 [pid 4996] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5288, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- [pid 4995] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5290, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=9 /* 0.09 s */} --- [pid 5297] <... ioctl resumed>) = 0 [pid 5000] fstat(3, [pid 4999] fstat(3, [pid 4996] umount2("./23", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5297] close(3 [pid 5000] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4996] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5297] <... close resumed>) = 0 [pid 5000] getdents64(3, [pid 4999] getdents64(3, [pid 4996] openat(AT_FDCWD, "./23", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4995] umount2("./23", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5297] mkdir("./file0", 0777 [pid 5000] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 4999] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 4996] <... openat resumed>) = 3 [pid 4995] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5297] <... mkdir resumed>) = 0 [pid 5000] umount2("./23/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] umount2("./24/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4996] fstat(3, [pid 4995] openat(AT_FDCWD, "./23", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5297] mount("/dev/loop3", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4996] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4995] <... openat resumed>) = 3 [pid 5000] lstat("./23/binderfs", [pid 4999] lstat("./24/binderfs", [pid 4996] getdents64(3, [pid 4995] fstat(3, [pid 5000] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4999] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4996] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 4995] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5298] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5000] unlink("./23/binderfs" [pid 4999] unlink("./24/binderfs" [pid 4996] umount2("./23/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4995] getdents64(3, [pid 5000] <... unlink resumed>) = 0 [pid 4999] <... unlink resumed>) = 0 [pid 4996] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] umount2("./23/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] umount2("./24/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4996] lstat("./23/binderfs", [pid 4995] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 4996] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4996] unlink("./23/binderfs" [pid 4995] umount2("./23/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4996] <... unlink resumed>) = 0 [pid 4996] umount2("./23/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4995] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4995] lstat("./23/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4995] unlink("./23/binderfs") = 0 [pid 4995] umount2("./23/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4996] <... umount2 resumed>) = 0 [pid 4996] umount2("./23/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4996] lstat("./23/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4996] umount2("./23/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4996] openat(AT_FDCWD, "./23/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 4996] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4996] getdents64(4, 0x55555708f660 /* 2 entries */, 32768) = 48 [ 99.931697][ T5297] loop3: detected capacity change from 0 to 8192 [ 99.955629][ T5297] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 4996] getdents64(4, 0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4996] close(4) = 0 [pid 4996] rmdir("./23/file0") = 0 [pid 4996] getdents64(3, 0x555557087620 /* 0 entries */, 32768) = 0 [ 100.016114][ T5297] REISERFS (device loop3): found reiserfs format "3.5" with non-standard journal [ 100.026515][ T5297] REISERFS (device loop3): using ordered data mode [ 100.034952][ T5297] reiserfs: using flush barriers [pid 4996] close(3) = 0 [pid 4996] rmdir("./23") = 0 [pid 4996] mkdir("./24", 0777) = 0 [pid 4996] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 4996] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 4996] close(3) = 0 [pid 4996] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570865d0) = 5300 [pid 5000] <... umount2 resumed>) = 0 [pid 5000] umount2("./23/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./23/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] umount2("./23/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./23/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5000] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] getdents64(4, 0x55555708f660 /* 2 entries */, 32768) = 48 [pid 5000] getdents64(4, 0x55555708f660 /* 0 entries */, 32768) = 0 [pid 5298] <... write resumed>) = 4194304 [pid 5000] close(4) = 0 [pid 5000] rmdir("./23/file0") = 0 [pid 5000] getdents64(3, ./strace-static-x86_64: Process 5300 attached 0x555557087620 /* 0 entries */, 32768) = 0 [pid 5000] close(3) = 0 [pid 5300] chdir("./24" [pid 5000] rmdir("./23") = 0 [pid 5000] mkdir("./24", 0777 [pid 5300] <... chdir resumed>) = 0 [pid 5000] <... mkdir resumed>) = 0 [pid 5300] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5000] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5300] <... prctl resumed>) = 0 [pid 5298] munmap(0x7faaa11e5000, 4194304 [pid 5300] setpgid(0, 0 [pid 5000] <... openat resumed>) = 3 [pid 5000] ioctl(3, LOOP_CLR_FD) = 0 [pid 5000] close(3) = 0 [pid 5000] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570865d0) = 5301 [pid 5300] <... setpgid resumed>) = 0 [pid 5298] <... munmap resumed>) = 0 [pid 5300] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5300] write(3, "1000", 4) = 4 [ 100.053919][ T5297] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5300] close(3) = 0 [pid 5300] symlink("/dev/binderfs", "./binderfs"./strace-static-x86_64: Process 5301 attached [pid 5301] chdir("./24" [pid 5298] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5300] <... symlink resumed>) = 0 [pid 5300] memfd_create("syzkaller", 0 [pid 5298] <... openat resumed>) = 4 [pid 5300] <... memfd_create resumed>) = 3 [pid 5298] ioctl(4, LOOP_SET_FD, 3 [pid 5300] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5301] <... chdir resumed>) = 0 [pid 5301] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5301] setpgid(0, 0) = 0 [pid 5301] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5301] write(3, "1000", 4) = 4 [pid 5301] close(3) = 0 [pid 5300] <... mmap resumed>) = 0x7faaa11e5000 [pid 5298] <... ioctl resumed>) = 0 [pid 5301] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5298] close(3 [pid 5301] memfd_create("syzkaller", 0) = 3 [pid 5301] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5298] <... close resumed>) = 0 [pid 5301] <... mmap resumed>) = 0x7faaa11e5000 [pid 5298] mkdir("./file0", 0777) = 0 [ 100.117953][ T5298] loop2: detected capacity change from 0 to 8192 [ 100.126854][ T5297] REISERFS (device loop3): checking transaction log (loop3) [ 100.148373][ T5298] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5298] mount("/dev/loop2", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5301] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 4995] <... umount2 resumed>) = 0 [pid 4995] umount2("./23/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] <... umount2 resumed>) = 0 [pid 4995] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4995] lstat("./23/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4995] umount2("./23/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] umount2("./24/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4995] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4995] openat(AT_FDCWD, "./23/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4999] lstat("./24/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4995] <... openat resumed>) = 4 [pid 4995] fstat(4, [pid 4999] umount2("./24/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4995] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] openat(AT_FDCWD, "./24/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4995] getdents64(4, 0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4999] <... openat resumed>) = 4 [pid 4999] fstat(4, [pid 4995] getdents64(4, [pid 4999] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4995] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4999] getdents64(4, [pid 4995] close(4 [pid 4999] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4995] <... close resumed>) = 0 [pid 4999] getdents64(4, [pid 4995] rmdir("./23/file0" [pid 4999] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4999] close(4) = 0 [pid 4995] <... rmdir resumed>) = 0 [pid 4999] rmdir("./24/file0" [pid 4995] getdents64(3, 0x555557087620 /* 0 entries */, 32768) = 0 [pid 4999] <... rmdir resumed>) = 0 [pid 4995] close(3 [pid 4999] getdents64(3, [pid 4995] <... close resumed>) = 0 [pid 4999] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 4999] close(3 [pid 4995] rmdir("./23" [pid 4999] <... close resumed>) = 0 [pid 4995] <... rmdir resumed>) = 0 [pid 4999] rmdir("./24" [pid 4995] mkdir("./24", 0777 [pid 4999] <... rmdir resumed>) = 0 [pid 4995] <... mkdir resumed>) = 0 [pid 4999] mkdir("./25", 0777 [pid 4995] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 4999] <... mkdir resumed>) = 0 [pid 4995] ioctl(3, LOOP_CLR_FD [pid 4999] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 4995] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4999] ioctl(3, LOOP_CLR_FD [pid 4995] close(3) = 0 [pid 4999] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4995] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4999] close(3) = 0 [pid 4995] <... clone resumed>, child_tidptr=0x5555570865d0) = 5303 [ 100.162209][ T5297] REISERFS (device loop3): Using tea hash to sort names [ 100.176913][ T5297] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [pid 4999] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5301] <... write resumed>) = 4194304 [pid 5301] munmap(0x7faaa11e5000, 4194304 [pid 4999] <... clone resumed>, child_tidptr=0x5555570865d0) = 5304 ./strace-static-x86_64: Process 5304 attached ./strace-static-x86_64: Process 5303 attached [pid 5303] chdir("./24" [pid 5304] chdir("./25" [pid 5303] <... chdir resumed>) = 0 [pid 5304] <... chdir resumed>) = 0 [pid 5301] <... munmap resumed>) = 0 [pid 5300] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5303] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5297] <... mount resumed>) = 0 [pid 5304] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5303] <... prctl resumed>) = 0 [pid 5304] <... prctl resumed>) = 0 [pid 5303] setpgid(0, 0 [pid 5304] setpgid(0, 0 [pid 5303] <... setpgid resumed>) = 0 [pid 5304] <... setpgid resumed>) = 0 [pid 5304] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5303] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5301] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5297] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5301] <... openat resumed>) = 4 [pid 5297] <... openat resumed>) = 3 [ 100.225045][ T5298] REISERFS (device loop2): found reiserfs format "3.5" with non-standard journal [ 100.235386][ T5298] REISERFS (device loop2): using ordered data mode [ 100.242521][ T5298] reiserfs: using flush barriers [ 100.253212][ T5298] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5301] ioctl(4, LOOP_SET_FD, 3 [pid 5297] chdir("./file0" [pid 5304] <... openat resumed>) = 3 [pid 5303] <... openat resumed>) = 3 [pid 5297] <... chdir resumed>) = 0 [pid 5304] write(3, "1000", 4 [pid 5303] write(3, "1000", 4 [pid 5301] <... ioctl resumed>) = 0 [pid 5297] ioctl(4, LOOP_CLR_FD [pid 5304] <... write resumed>) = 4 [pid 5303] <... write resumed>) = 4 [pid 5304] close(3 [pid 5297] <... ioctl resumed>) = 0 [pid 5301] close(3) = 0 [pid 5301] mkdir("./file0", 0777 [pid 5304] <... close resumed>) = 0 [pid 5297] close(4 [pid 5304] symlink("/dev/binderfs", "./binderfs" [pid 5303] close(3 [pid 5301] <... mkdir resumed>) = 0 [pid 5297] <... close resumed>) = 0 [pid 5301] mount("/dev/loop5", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5303] <... close resumed>) = 0 [pid 5304] <... symlink resumed>) = 0 [pid 5303] symlink("/dev/binderfs", "./binderfs" [pid 5297] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5300] <... write resumed>) = 4194304 [pid 5300] munmap(0x7faaa11e5000, 4194304 [pid 5303] <... symlink resumed>) = 0 [ 100.273948][ T5298] REISERFS (device loop2): checking transaction log (loop2) [ 100.276558][ T5301] loop5: detected capacity change from 0 to 8192 [ 100.295544][ T5301] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 100.313855][ T5298] REISERFS (device loop2): Using tea hash to sort names [pid 5300] <... munmap resumed>) = 0 [pid 5297] <... openat resumed>) = 4 [pid 5304] memfd_create("syzkaller", 0 [pid 5303] memfd_create("syzkaller", 0 [pid 5297] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 5304] <... memfd_create resumed>) = 3 [pid 5303] <... memfd_create resumed>) = 3 [pid 5300] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5300] ioctl(4, LOOP_SET_FD, 3 [pid 5304] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5303] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5297] <... mmap resumed>) = 0x20000000 [pid 5304] <... mmap resumed>) = 0x7faaa11e5000 [pid 5303] <... mmap resumed>) = 0x7faaa11e5000 [pid 5300] <... ioctl resumed>) = 0 [pid 5298] <... mount resumed>) = 0 [pid 5297] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5297] exit_group(0 [pid 5300] close(3 [pid 5298] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5297] <... exit_group resumed>) = ? [pid 5297] +++ exited with 0 +++ [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5297, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- [pid 4998] umount2("./24", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5300] <... close resumed>) = 0 [pid 5298] <... openat resumed>) = 3 [pid 4998] openat(AT_FDCWD, "./24", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5300] mkdir("./file0", 0777 [pid 5298] chdir("./file0" [pid 4998] <... openat resumed>) = 3 [pid 5300] <... mkdir resumed>) = 0 [pid 5298] <... chdir resumed>) = 0 [pid 4998] fstat(3, [pid 5300] mount("/dev/loop1", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5298] ioctl(4, LOOP_CLR_FD [pid 4998] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5298] <... ioctl resumed>) = 0 [pid 4998] getdents64(3, [pid 5298] close(4 [pid 4998] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [ 100.315761][ T5301] REISERFS (device loop5): found reiserfs format "3.5" with non-standard journal [ 100.331237][ T5300] loop1: detected capacity change from 0 to 8192 [ 100.337104][ T5298] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 100.338233][ T5301] REISERFS (device loop5): using ordered data mode [ 100.353176][ T5301] reiserfs: using flush barriers [pid 5304] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5298] <... close resumed>) = 0 [pid 4998] umount2("./24/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./24/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4998] unlink("./24/binderfs") = 0 [pid 4998] umount2("./24/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5298] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5303] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5298] <... openat resumed>) = 4 [pid 5298] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0) = 0x20000000 [pid 5298] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5298] exit_group(0 [pid 5304] <... write resumed>) = 4194304 [pid 5298] <... exit_group resumed>) = ? [pid 5304] munmap(0x7faaa11e5000, 4194304 [pid 5298] +++ exited with 0 +++ [pid 4997] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5298, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- [pid 4997] umount2("./24", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4997] openat(AT_FDCWD, "./24", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [ 100.377021][ T5301] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 100.406081][ T5300] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 4997] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5304] <... munmap resumed>) = 0 [pid 5303] <... write resumed>) = 4194304 [pid 4997] getdents64(3, 0x555557087620 /* 4 entries */, 32768) = 112 [pid 4997] umount2("./24/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4997] lstat("./24/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4997] unlink("./24/binderfs" [pid 5304] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5303] munmap(0x7faaa11e5000, 4194304 [pid 4997] <... unlink resumed>) = 0 [pid 5304] <... openat resumed>) = 4 [pid 4997] umount2("./24/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5304] ioctl(4, LOOP_SET_FD, 3 [pid 5303] <... munmap resumed>) = 0 [pid 5303] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5303] ioctl(4, LOOP_SET_FD, 3 [pid 5304] <... ioctl resumed>) = 0 [pid 5303] <... ioctl resumed>) = 0 [pid 5303] close(3 [pid 5304] close(3) = 0 [pid 5303] <... close resumed>) = 0 [pid 5304] mkdir("./file0", 0777 [pid 5301] <... mount resumed>) = 0 [ 100.458074][ T5301] REISERFS (device loop5): checking transaction log (loop5) [ 100.467507][ T5300] REISERFS (device loop1): found reiserfs format "3.5" with non-standard journal [ 100.468067][ T5304] loop4: detected capacity change from 0 to 8192 [ 100.484534][ T5301] REISERFS (device loop5): Using tea hash to sort names [ 100.492114][ T5303] loop0: detected capacity change from 0 to 8192 [ 100.499369][ T5301] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 5303] mkdir("./file0", 0777 [pid 5304] <... mkdir resumed>) = 0 [pid 5301] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5303] <... mkdir resumed>) = 0 [pid 5301] <... openat resumed>) = 3 [pid 5304] mount("/dev/loop4", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5303] mount("/dev/loop0", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5301] chdir("./file0" [pid 4998] <... umount2 resumed>) = 0 [pid 5301] <... chdir resumed>) = 0 [ 100.511405][ T5300] REISERFS (device loop1): using ordered data mode [ 100.521469][ T5303] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 100.535303][ T5300] reiserfs: using flush barriers [ 100.535679][ T5304] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5301] ioctl(4, LOOP_CLR_FD) = 0 [pid 4998] umount2("./24/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4997] <... umount2 resumed>) = 0 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./24/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] umount2("./24/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./24/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 4998] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] getdents64(4, 0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4998] getdents64(4, 0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4998] close(4) = 0 [pid 4998] rmdir("./24/file0") = 0 [pid 4998] getdents64(3, 0x555557087620 /* 0 entries */, 32768) = 0 [pid 4998] close(3) = 0 [pid 4998] rmdir("./24" [pid 5301] close(4 [pid 4998] <... rmdir resumed>) = 0 [pid 4998] mkdir("./25", 0777) = 0 [pid 4998] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 4998] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 4998] close(3 [pid 5301] <... close resumed>) = 0 [pid 4998] <... close resumed>) = 0 [pid 4998] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570865d0) = 5309 [pid 5301] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5301] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0) = 0x20000000 [pid 5301] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5301] exit_group(0) = ? [pid 5301] +++ exited with 0 +++ ./strace-static-x86_64: Process 5309 attached [pid 5309] chdir("./25") = 0 [pid 5309] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5309] setpgid(0, 0) = 0 [pid 5309] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [ 100.541234][ T5300] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 100.570151][ T5303] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 100.579838][ T5303] REISERFS (device loop0): using ordered data mode [ 100.586951][ T5300] REISERFS (device loop1): checking transaction log (loop1) [ 100.595170][ T5303] reiserfs: using flush barriers [ 100.600658][ T5300] REISERFS (device loop1): Using tea hash to sort names [pid 5309] write(3, "1000", 4) = 4 [pid 5309] close(3) = 0 [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5301, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- [pid 5309] symlink("/dev/binderfs", "./binderfs" [pid 5000] umount2("./24", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./24", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5000] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] getdents64(3, 0x555557087620 /* 4 entries */, 32768) = 112 [pid 5309] <... symlink resumed>) = 0 [pid 5000] umount2("./24/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./24/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] unlink("./24/binderfs") = 0 [pid 5000] umount2("./24/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5309] memfd_create("syzkaller", 0 [pid 4997] umount2("./24/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5309] <... memfd_create resumed>) = 3 [pid 5309] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 4997] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5309] <... mmap resumed>) = 0x7faaa11e5000 [pid 4997] lstat("./24/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [ 100.609363][ T5303] 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 [ 100.619759][ T5300] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 100.627023][ T5303] REISERFS (device loop0): checking transaction log (loop0) [ 100.643451][ T5304] REISERFS (device loop4): found reiserfs format "3.5" with non-standard journal [ 100.645138][ T5303] REISERFS (device loop0): Using tea hash to sort names [pid 4997] umount2("./24/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4997] openat(AT_FDCWD, "./24/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5300] <... mount resumed>) = 0 [pid 4997] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4997] getdents64(4, 0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4997] getdents64(4, 0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4997] close(4 [pid 5303] <... mount resumed>) = 0 [pid 5300] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 4997] <... close resumed>) = 0 [pid 4997] rmdir("./24/file0") = 0 [pid 4997] getdents64(3, [pid 5303] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5300] <... openat resumed>) = 3 [pid 4997] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 5303] <... openat resumed>) = 3 [pid 5300] chdir("./file0" [pid 4997] close(3 [pid 5303] chdir("./file0" [pid 5300] <... chdir resumed>) = 0 [pid 4997] <... close resumed>) = 0 [pid 5303] <... chdir resumed>) = 0 [ 100.653388][ T5304] REISERFS (device loop4): using ordered data mode [ 100.668031][ T5304] reiserfs: using flush barriers [ 100.676134][ T5303] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 100.685373][ T5304] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 100.702484][ T5304] REISERFS (device loop4): checking transaction log (loop4) [pid 5300] ioctl(4, LOOP_CLR_FD [pid 4997] rmdir("./24" [pid 5303] ioctl(4, LOOP_CLR_FD [pid 5300] <... ioctl resumed>) = 0 [pid 4997] <... rmdir resumed>) = 0 [pid 5303] <... ioctl resumed>) = 0 [pid 5300] close(4 [pid 4997] mkdir("./25", 0777 [pid 5303] close(4 [pid 5300] <... close resumed>) = 0 [pid 4997] <... mkdir resumed>) = 0 [pid 5303] <... close resumed>) = 0 [pid 5300] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4997] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5303] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5300] <... openat resumed>) = 4 [pid 4997] <... openat resumed>) = 3 [pid 5303] <... openat resumed>) = 4 [pid 5300] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 4997] ioctl(3, LOOP_CLR_FD [pid 5303] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 5300] <... mmap resumed>) = 0x20000000 [pid 4997] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5303] <... mmap resumed>) = 0x20000000 [pid 5300] ioctl(4, FS_IOC_GETVERSION [pid 4997] close(3 [pid 5303] ioctl(4, FS_IOC_GETVERSION [pid 5300] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 4997] <... close resumed>) = 0 [pid 5303] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5300] exit_group(0 [pid 4997] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5303] exit_group(0 [pid 5300] <... exit_group resumed>) = ? [pid 5303] <... exit_group resumed>) = ? [pid 5300] +++ exited with 0 +++ [pid 4997] <... clone resumed>, child_tidptr=0x5555570865d0) = 5310 [pid 5303] +++ exited with 0 +++ [pid 4996] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5300, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 4996] restart_syscall(<... resuming interrupted clone ...> [pid 4995] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5303, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- [pid 4996] <... restart_syscall resumed>) = 0 [pid 4995] umount2("./24", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4996] umount2("./24", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4995] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4996] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4995] openat(AT_FDCWD, "./24", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4996] openat(AT_FDCWD, "./24", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4995] <... openat resumed>) = 3 [pid 4996] <... openat resumed>) = 3 [pid 4995] fstat(3, [pid 4996] fstat(3, [pid 4995] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4996] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4995] getdents64(3, [pid 4996] getdents64(3, [pid 4995] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 4996] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 4995] umount2("./24/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5310 attached [pid 4996] umount2("./24/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4995] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5310] chdir("./25" [pid 4996] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4995] lstat("./24/binderfs", [pid 5310] <... chdir resumed>) = 0 [pid 4996] lstat("./24/binderfs", [pid 4995] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5310] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4996] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4995] unlink("./24/binderfs" [pid 5310] <... prctl resumed>) = 0 [pid 4996] unlink("./24/binderfs" [pid 4995] <... unlink resumed>) = 0 [pid 5310] setpgid(0, 0 [pid 5309] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 4996] <... unlink resumed>) = 0 [pid 4995] umount2("./24/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5310] <... setpgid resumed>) = 0 [pid 4996] umount2("./24/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5310] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5310] write(3, "1000", 4) = 4 [pid 5310] close(3) = 0 [pid 5310] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5310] memfd_create("syzkaller", 0) = 3 [pid 5310] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7faaa11e5000 [ 100.712438][ T5304] REISERFS (device loop4): Using tea hash to sort names [ 100.731254][ T5304] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [pid 5000] <... umount2 resumed>) = 0 [pid 5304] <... mount resumed>) = 0 [pid 5000] umount2("./24/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./24/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] umount2("./24/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./24/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5000] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] getdents64(4, [pid 5304] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5000] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 5000] getdents64(4, 0x55555708f660 /* 0 entries */, 32768) = 0 [pid 5000] close(4) = 0 [pid 5000] rmdir("./24/file0" [pid 5304] <... openat resumed>) = 3 [pid 5304] chdir("./file0" [pid 5000] <... rmdir resumed>) = 0 [pid 5000] getdents64(3, [pid 5304] <... chdir resumed>) = 0 [pid 4996] <... umount2 resumed>) = 0 [pid 5304] ioctl(4, LOOP_CLR_FD) = 0 [pid 5000] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 5000] close(3 [pid 5304] close(4 [pid 5000] <... close resumed>) = 0 [pid 5304] <... close resumed>) = 0 [pid 5000] rmdir("./24" [pid 5304] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5000] <... rmdir resumed>) = 0 [pid 5304] <... openat resumed>) = 4 [pid 5000] mkdir("./25", 0777 [pid 5304] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 5000] <... mkdir resumed>) = 0 [pid 5304] <... mmap resumed>) = 0x20000000 [pid 4995] <... umount2 resumed>) = 0 [pid 5304] ioctl(4, FS_IOC_GETVERSION [pid 5000] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4996] umount2("./24/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5304] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5000] <... openat resumed>) = 3 [pid 4995] umount2("./24/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5304] exit_group(0 [pid 5000] ioctl(3, LOOP_CLR_FD [pid 4996] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5310] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5304] <... exit_group resumed>) = ? [pid 5000] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4996] lstat("./24/file0", [pid 4995] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] close(3) = 0 [pid 5000] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5304] +++ exited with 0 +++ [pid 4996] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4995] lstat("./24/file0", [pid 5000] <... clone resumed>, child_tidptr=0x5555570865d0) = 5311 [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5304, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=11 /* 0.11 s */} --- [pid 4996] umount2("./24/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4995] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4996] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] umount2("./25", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4995] umount2("./24/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4996] openat(AT_FDCWD, "./24/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4999] openat(AT_FDCWD, "./25", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4995] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] <... openat resumed>) = 3 [pid 4996] <... openat resumed>) = 4 [pid 4995] openat(AT_FDCWD, "./24/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY./strace-static-x86_64: Process 5311 attached [pid 4999] fstat(3, [pid 4996] fstat(4, [pid 5311] chdir("./25" [pid 4999] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4995] <... openat resumed>) = 4 [pid 4999] getdents64(3, [pid 4996] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4995] fstat(4, [pid 5311] <... chdir resumed>) = 0 [pid 4999] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 5311] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4999] umount2("./25/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4996] getdents64(4, [pid 4995] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5311] <... prctl resumed>) = 0 [pid 4999] lstat("./25/binderfs", [pid 4996] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4995] getdents64(4, [pid 5311] setpgid(0, 0 [pid 4999] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5311] <... setpgid resumed>) = 0 [pid 4999] unlink("./25/binderfs" [pid 4996] getdents64(4, [pid 4995] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 5311] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4999] <... unlink resumed>) = 0 [pid 4996] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 5311] <... openat resumed>) = 3 [pid 4999] umount2("./25/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4996] close(4 [pid 4995] getdents64(4, [pid 5311] write(3, "1000", 4 [pid 4996] <... close resumed>) = 0 [pid 5311] <... write resumed>) = 4 [pid 4996] rmdir("./24/file0" [pid 4995] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 5311] close(3) = 0 [pid 4996] <... rmdir resumed>) = 0 [pid 4995] close(4 [pid 5311] symlink("/dev/binderfs", "./binderfs" [pid 4996] getdents64(3, [pid 5311] <... symlink resumed>) = 0 [pid 4995] <... close resumed>) = 0 [pid 5311] memfd_create("syzkaller", 0 [pid 4996] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 4995] rmdir("./24/file0" [pid 5311] <... memfd_create resumed>) = 3 [pid 4996] close(3 [pid 5311] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 4995] <... rmdir resumed>) = 0 [pid 4996] <... close resumed>) = 0 [pid 5311] <... mmap resumed>) = 0x7faaa11e5000 [pid 4996] rmdir("./24" [pid 4995] getdents64(3, [pid 5309] <... write resumed>) = 4194304 [pid 4996] <... rmdir resumed>) = 0 [pid 4995] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 4996] mkdir("./25", 0777 [pid 4995] close(3 [pid 4996] <... mkdir resumed>) = 0 [pid 4995] <... close resumed>) = 0 [pid 4995] rmdir("./24" [pid 4996] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4995] <... rmdir resumed>) = 0 [pid 4995] mkdir("./25", 0777 [pid 4996] <... openat resumed>) = 3 [pid 4995] <... mkdir resumed>) = 0 [pid 4996] ioctl(3, LOOP_CLR_FD [pid 4995] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4996] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4995] <... openat resumed>) = 3 [pid 4996] close(3 [pid 4995] ioctl(3, LOOP_CLR_FD [pid 4996] <... close resumed>) = 0 [pid 4995] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4996] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4995] close(3) = 0 [pid 4996] <... clone resumed>, child_tidptr=0x5555570865d0) = 5312 [pid 4995] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570865d0) = 5313 ./strace-static-x86_64: Process 5312 attached [pid 4999] <... umount2 resumed>) = 0 [pid 4999] umount2("./25/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5312] chdir("./25" [pid 4999] lstat("./25/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] umount2("./25/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./25/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 4999] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 ./strace-static-x86_64: Process 5313 attached [pid 4999] getdents64(4, 0x55555708f660 /* 2 entries */, 32768) = 48 [pid 5313] chdir("./25" [pid 4999] getdents64(4, 0x55555708f660 /* 0 entries */, 32768) = 0 [pid 5313] <... chdir resumed>) = 0 [pid 4999] close(4 [pid 5313] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4999] <... close resumed>) = 0 [pid 5313] <... prctl resumed>) = 0 [pid 4999] rmdir("./25/file0" [pid 5313] setpgid(0, 0 [pid 4999] <... rmdir resumed>) = 0 [pid 5313] <... setpgid resumed>) = 0 [pid 5312] <... chdir resumed>) = 0 [pid 4999] getdents64(3, [pid 5313] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5312] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4999] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 5313] <... openat resumed>) = 3 [pid 5312] <... prctl resumed>) = 0 [pid 5309] munmap(0x7faaa11e5000, 4194304 [pid 5313] write(3, "1000", 4 [pid 5312] setpgid(0, 0 [pid 4999] close(3 [pid 5313] <... write resumed>) = 4 [pid 5312] <... setpgid resumed>) = 0 [pid 4999] <... close resumed>) = 0 [pid 5313] close(3 [pid 5312] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4999] rmdir("./25" [pid 5313] <... close resumed>) = 0 [pid 5312] <... openat resumed>) = 3 [pid 5309] <... munmap resumed>) = 0 [pid 4999] <... rmdir resumed>) = 0 [pid 5313] symlink("/dev/binderfs", "./binderfs" [pid 5312] write(3, "1000", 4 [pid 5309] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4999] mkdir("./26", 0777 [pid 5313] <... symlink resumed>) = 0 [pid 5312] <... write resumed>) = 4 [pid 5309] <... openat resumed>) = 4 [pid 4999] <... mkdir resumed>) = 0 [pid 5313] memfd_create("syzkaller", 0 [pid 5312] close(3 [pid 5309] ioctl(4, LOOP_SET_FD, 3 [pid 4999] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5313] <... memfd_create resumed>) = 3 [pid 5312] <... close resumed>) = 0 [pid 4999] <... openat resumed>) = 3 [pid 5313] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5312] symlink("/dev/binderfs", "./binderfs" [pid 4999] ioctl(3, LOOP_CLR_FD [pid 5313] <... mmap resumed>) = 0x7faaa11e5000 [pid 5312] <... symlink resumed>) = 0 [pid 4999] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5312] memfd_create("syzkaller", 0 [pid 4999] close(3 [pid 5312] <... memfd_create resumed>) = 3 [pid 4999] <... close resumed>) = 0 [pid 5312] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 4999] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5312] <... mmap resumed>) = 0x7faaa11e5000 [pid 4999] <... clone resumed>, child_tidptr=0x5555570865d0) = 5314 ./strace-static-x86_64: Process 5314 attached [pid 5314] chdir("./26" [pid 5311] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5314] <... chdir resumed>) = 0 [pid 5314] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5314] setpgid(0, 0) = 0 [pid 5314] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5314] write(3, "1000", 4) = 4 [pid 5314] close(3) = 0 [pid 5314] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5314] memfd_create("syzkaller", 0) = 3 [pid 5314] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7faaa11e5000 [pid 5309] <... ioctl resumed>) = 0 [pid 5309] close(3) = 0 [pid 5309] mkdir("./file0", 0777) = 0 [pid 5309] mount("/dev/loop3", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5310] <... write resumed>) = 4194304 [pid 5310] munmap(0x7faaa11e5000, 4194304) = 0 [ 100.951392][ T5309] loop3: detected capacity change from 0 to 8192 [pid 5313] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5310] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5310] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5310] close(3) = 0 [pid 5310] mkdir("./file0", 0777 [pid 5311] <... write resumed>) = 4194304 [pid 5310] <... mkdir resumed>) = 0 [pid 5311] munmap(0x7faaa11e5000, 4194304 [pid 5310] mount("/dev/loop2", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5311] <... munmap resumed>) = 0 [pid 5311] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5314] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5311] <... openat resumed>) = 4 [ 101.009896][ T5309] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 101.035420][ T5310] loop2: detected capacity change from 0 to 8192 [pid 5312] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5313] <... write resumed>) = 4194304 [pid 5311] ioctl(4, LOOP_SET_FD, 3 [pid 5313] munmap(0x7faaa11e5000, 4194304) = 0 [pid 5313] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5311] <... ioctl resumed>) = 0 [pid 5313] <... openat resumed>) = 4 [ 101.072127][ T5310] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 101.076025][ T5309] REISERFS (device loop3): found reiserfs format "3.5" with non-standard journal [ 101.088979][ T5310] REISERFS (device loop2): found reiserfs format "3.5" with non-standard journal [ 101.103830][ T5311] loop5: detected capacity change from 0 to 8192 [ 101.112380][ T5310] REISERFS (device loop2): using ordered data mode [pid 5311] close(3 [pid 5313] ioctl(4, LOOP_SET_FD, 3 [pid 5311] <... close resumed>) = 0 [pid 5313] <... ioctl resumed>) = 0 [pid 5311] mkdir("./file0", 0777) = 0 [pid 5313] close(3 [pid 5311] mount("/dev/loop5", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5313] <... close resumed>) = 0 [pid 5313] mkdir("./file0", 0777) = 0 [ 101.119434][ T5310] reiserfs: using flush barriers [ 101.120132][ T5309] REISERFS (device loop3): using ordered data mode [ 101.125686][ T5310] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 101.147266][ T5313] loop0: detected capacity change from 0 to 8192 [ 101.155701][ T5310] REISERFS (device loop2): checking transaction log (loop2) [pid 5313] mount("/dev/loop0", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5312] <... write resumed>) = 4194304 [pid 5312] munmap(0x7faaa11e5000, 4194304) = 0 [pid 5312] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [ 101.164432][ T5311] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 101.168317][ T5309] reiserfs: using flush barriers [ 101.178857][ T5310] REISERFS (device loop2): Using tea hash to sort names [ 101.189530][ T5311] REISERFS (device loop5): found reiserfs format "3.5" with non-standard journal [ 101.199651][ T5313] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 101.203354][ T5312] loop1: detected capacity change from 0 to 8192 [pid 5312] ioctl(4, LOOP_SET_FD, 3 [pid 5314] <... write resumed>) = 4194304 [pid 5314] munmap(0x7faaa11e5000, 4194304) = 0 [pid 5314] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [ 101.213007][ T5313] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 101.228865][ T5310] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 101.238560][ T5309] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 101.238760][ T5311] REISERFS (device loop5): using ordered data mode [ 101.261769][ T5311] reiserfs: using flush barriers [ 101.262611][ T5314] loop4: detected capacity change from 0 to 8192 [pid 5314] ioctl(4, LOOP_SET_FD, 3 [pid 5312] <... ioctl resumed>) = 0 [pid 5312] close(3) = 0 [pid 5314] <... ioctl resumed>) = 0 [pid 5312] mkdir("./file0", 0777) = 0 [pid 5312] mount("/dev/loop1", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5314] close(3) = 0 [pid 5314] mkdir("./file0", 0777) = 0 [pid 5314] mount("/dev/loop4", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5310] <... mount resumed>) = 0 [pid 5310] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5310] chdir("./file0") = 0 [pid 5310] ioctl(4, LOOP_CLR_FD) = 0 [ 101.268198][ T5313] REISERFS (device loop0): using ordered data mode [ 101.279742][ T5311] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 101.299822][ T5311] REISERFS (device loop5): checking transaction log (loop5) [ 101.308523][ T5312] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5310] close(4) = 0 [pid 5310] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5310] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0) = 0x20000000 [pid 5310] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5310] exit_group(0) = ? [pid 5310] +++ exited with 0 +++ [pid 4997] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5310, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=12 /* 0.12 s */} --- [pid 4997] umount2("./25", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4997] openat(AT_FDCWD, "./25", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 4997] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4997] getdents64(3, 0x555557087620 /* 4 entries */, 32768) = 112 [pid 4997] umount2("./25/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4997] lstat("./25/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4997] unlink("./25/binderfs") = 0 [ 101.313963][ T5314] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 101.321899][ T5309] REISERFS (device loop3): checking transaction log (loop3) [ 101.339383][ T5313] reiserfs: using flush barriers [ 101.341893][ T5311] REISERFS (device loop5): Using tea hash to sort names [ 101.354177][ T5312] REISERFS (device loop1): found reiserfs format "3.5" with non-standard journal [ 101.363913][ T5311] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 4997] umount2("./25/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5311] <... mount resumed>) = 0 [ 101.373630][ T5312] REISERFS (device loop1): using ordered data mode [ 101.376260][ T5314] REISERFS (device loop4): found reiserfs format "3.5" with non-standard journal [ 101.380912][ T5312] reiserfs: using flush barriers [ 101.391053][ T5313] 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 [ 101.395776][ T5314] REISERFS (device loop4): using ordered data mode [ 101.412422][ T5309] REISERFS (device loop3): Using tea hash to sort names [pid 5311] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5311] chdir("./file0") = 0 [ 101.417488][ T5312] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 101.430006][ T5309] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 101.440488][ T5314] reiserfs: using flush barriers [ 101.450539][ T5313] REISERFS (device loop0): checking transaction log (loop0) [ 101.455797][ T5312] REISERFS (device loop1): checking transaction log (loop1) [pid 5311] ioctl(4, LOOP_CLR_FD [pid 5309] <... mount resumed>) = 0 [pid 5309] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5309] chdir("./file0") = 0 [pid 5309] ioctl(4, LOOP_CLR_FD) = 0 [pid 5309] close(4 [pid 5311] <... ioctl resumed>) = 0 [pid 5311] close(4) = 0 [pid 5311] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5311] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0) = 0x20000000 [pid 5311] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5311] exit_group(0 [pid 5309] <... close resumed>) = 0 [pid 5309] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5309] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0) = 0x20000000 [pid 5311] <... exit_group resumed>) = ? [pid 5309] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5309] exit_group(0) = ? [pid 5312] <... mount resumed>) = 0 [pid 5311] +++ exited with 0 +++ [pid 5309] +++ exited with 0 +++ [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5309, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=14 /* 0.14 s */} --- [pid 4998] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 4998] umount2("./25", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./25", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 4998] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] getdents64(3, 0x555557087620 /* 4 entries */, 32768) = 112 [pid 4998] umount2("./25/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./25/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4998] unlink("./25/binderfs") = 0 [ 101.469166][ T5314] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 101.490189][ T5312] REISERFS (device loop1): Using tea hash to sort names [ 101.497673][ T5314] REISERFS (device loop4): checking transaction log (loop4) [ 101.506128][ T5312] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 101.516150][ T5314] REISERFS (device loop4): Using tea hash to sort names [pid 4998] umount2("./25/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5312] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5311, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=11 /* 0.11 s */} --- [pid 5314] <... mount resumed>) = 0 [pid 5312] chdir("./file0") = 0 [pid 5312] ioctl(4, LOOP_CLR_FD [pid 5314] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5312] <... ioctl resumed>) = 0 [pid 5000] umount2("./25", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5314] <... openat resumed>) = 3 [pid 5312] close(4 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5314] chdir("./file0" [pid 5313] <... mount resumed>) = 0 [pid 5312] <... close resumed>) = 0 [pid 5000] openat(AT_FDCWD, "./25", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5314] <... chdir resumed>) = 0 [pid 5312] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5000] <... openat resumed>) = 3 [pid 5313] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5313] chdir("./file0") = 0 [pid 5313] ioctl(4, LOOP_CLR_FD) = 0 [pid 5313] close(4 [pid 5312] <... openat resumed>) = 4 [pid 5314] ioctl(4, LOOP_CLR_FD [pid 5000] fstat(3, [pid 5313] <... close resumed>) = 0 [pid 5312] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 5313] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5314] <... ioctl resumed>) = 0 [pid 5313] <... openat resumed>) = 4 [pid 5000] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5312] <... mmap resumed>) = 0x20000000 [pid 5313] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 5314] close(4 [pid 5313] <... mmap resumed>) = 0x20000000 [pid 5312] ioctl(4, FS_IOC_GETVERSION [pid 5000] getdents64(3, [pid 5314] <... close resumed>) = 0 [pid 5312] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5000] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 5314] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5312] exit_group(0 [pid 5000] umount2("./25/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5313] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5313] exit_group(0 [pid 5314] <... openat resumed>) = 4 [pid 5313] <... exit_group resumed>) = ? [pid 5312] <... exit_group resumed>) = ? [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5314] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 5313] +++ exited with 0 +++ [pid 5312] +++ exited with 0 +++ [pid 5000] lstat("./25/binderfs", [pid 4995] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5313, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=11 /* 0.11 s */} --- [pid 4995] umount2("./25", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5314] <... mmap resumed>) = 0x20000000 [pid 5000] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4995] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4995] openat(AT_FDCWD, "./25", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5314] ioctl(4, FS_IOC_GETVERSION [pid 5000] unlink("./25/binderfs" [pid 4996] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5312, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- [pid 4995] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4995] getdents64(3, [pid 5314] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 4995] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 5000] <... unlink resumed>) = 0 [pid 4996] restart_syscall(<... resuming interrupted clone ...> [pid 4995] umount2("./25/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5314] exit_group(0 [pid 4995] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4995] lstat("./25/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5314] <... exit_group resumed>) = ? [pid 5000] umount2("./25/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4996] <... restart_syscall resumed>) = 0 [pid 4995] unlink("./25/binderfs" [pid 5314] +++ exited with 0 +++ [pid 4995] <... unlink resumed>) = 0 [pid 4995] umount2("./25/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5314, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=15 /* 0.15 s */} --- [pid 4996] umount2("./25", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4996] openat(AT_FDCWD, "./25", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4999] umount2("./26", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4996] <... openat resumed>) = 3 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4996] fstat(3, [pid 4999] openat(AT_FDCWD, "./26", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4996] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] <... openat resumed>) = 3 [pid 4996] getdents64(3, [ 101.523859][ T5314] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 101.534047][ T5313] REISERFS (device loop0): Using tea hash to sort names [ 101.541840][ T5313] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 4999] fstat(3, [pid 4996] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 4999] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] getdents64(3, [pid 4996] umount2("./25/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 4996] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] umount2("./26/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4996] lstat("./25/binderfs", [pid 5000] <... umount2 resumed>) = 0 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4996] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] umount2("./25/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] lstat("./26/binderfs", [pid 4996] unlink("./25/binderfs" [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4996] <... unlink resumed>) = 0 [pid 5000] lstat("./25/file0", [pid 4999] unlink("./26/binderfs" [pid 4996] umount2("./25/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] <... unlink resumed>) = 0 [pid 5000] umount2("./25/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] umount2("./26/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./25/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5000] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4997] <... umount2 resumed>) = 0 [pid 5000] getdents64(4, [pid 4997] umount2("./25/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 5000] getdents64(4, [pid 4997] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4997] lstat("./25/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] close(4 [pid 4997] umount2("./25/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] <... close resumed>) = 0 [pid 5000] rmdir("./25/file0" [pid 4997] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4997] openat(AT_FDCWD, "./25/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 4997] fstat(4, [pid 5000] <... rmdir resumed>) = 0 [pid 5000] getdents64(3, [pid 4997] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 4997] getdents64(4, 0x55555708f660 /* 2 entries */, 32768) = 48 [pid 5000] close(3 [pid 4997] getdents64(4, [pid 5000] <... close resumed>) = 0 [pid 4997] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4997] close(4) = 0 [pid 4997] rmdir("./25/file0") = 0 [pid 5000] rmdir("./25") = 0 [pid 5000] mkdir("./26", 0777 [pid 4997] getdents64(3, 0x555557087620 /* 0 entries */, 32768) = 0 [pid 4997] close(3) = 0 [pid 4997] rmdir("./25" [pid 5000] <... mkdir resumed>) = 0 [pid 5000] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4997] <... rmdir resumed>) = 0 [pid 5000] <... openat resumed>) = 3 [pid 5000] ioctl(3, LOOP_CLR_FD [pid 4998] <... umount2 resumed>) = 0 [pid 5000] <... ioctl resumed>) = 0 [pid 4997] mkdir("./26", 0777 [pid 5000] close(3 [pid 4996] <... umount2 resumed>) = 0 [pid 5000] <... close resumed>) = 0 [pid 4997] <... mkdir resumed>) = 0 [pid 4996] umount2("./25/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] umount2("./25/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./25/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4996] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4997] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 4998] umount2("./25/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4997] ioctl(3, LOOP_CLR_FD [pid 4998] openat(AT_FDCWD, "./25/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4997] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4998] <... openat resumed>) = 4 [pid 4997] close(3) = 0 [pid 4998] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] <... clone resumed>, child_tidptr=0x5555570865d0) = 5321 [pid 4996] lstat("./25/file0", [pid 4997] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4996] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4996] umount2("./25/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] getdents64(4, [pid 4996] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4998] getdents64(4, 0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4998] close(4) = 0 [pid 4998] rmdir("./25/file0" [pid 4996] openat(AT_FDCWD, "./25/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4998] <... rmdir resumed>) = 0 [pid 4996] <... openat resumed>) = 4 ./strace-static-x86_64: Process 5321 attached [pid 4996] fstat(4, [pid 4998] getdents64(3, 0x555557087620 /* 0 entries */, 32768) = 0 [pid 4998] close(3) = 0 [pid 4998] rmdir("./25" [pid 5321] chdir("./26" [pid 4998] <... rmdir resumed>) = 0 [pid 4996] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4997] <... clone resumed>, child_tidptr=0x5555570865d0) = 5322 [pid 4996] getdents64(4, 0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4998] mkdir("./26", 0777 [pid 4996] getdents64(4, [pid 5321] <... chdir resumed>) = 0 [pid 4996] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 5321] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4998] <... mkdir resumed>) = 0 [pid 4996] close(4 [pid 5321] <... prctl resumed>) = 0 [pid 4996] <... close resumed>) = 0 ./strace-static-x86_64: Process 5322 attached [pid 5322] chdir("./26") = 0 [pid 4998] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5322] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5322] setpgid(0, 0) = 0 [pid 5322] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5321] setpgid(0, 0 [pid 4996] rmdir("./25/file0" [pid 5321] <... setpgid resumed>) = 0 [pid 5321] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4998] ioctl(3, LOOP_CLR_FD [pid 4996] <... rmdir resumed>) = 0 [pid 5322] <... openat resumed>) = 3 [pid 5321] <... openat resumed>) = 3 [pid 4998] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4996] getdents64(3, [pid 5321] write(3, "1000", 4 [pid 4996] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 4996] close(3 [pid 5322] write(3, "1000", 4 [pid 4998] close(3 [pid 5321] <... write resumed>) = 4 [pid 4996] <... close resumed>) = 0 [pid 5322] <... write resumed>) = 4 [pid 5321] close(3 [pid 4998] <... close resumed>) = 0 [pid 4996] rmdir("./25" [pid 5321] <... close resumed>) = 0 [pid 5322] close(3 [pid 5321] symlink("/dev/binderfs", "./binderfs" [pid 4998] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4996] <... rmdir resumed>) = 0 [pid 5322] <... close resumed>) = 0 [pid 5321] <... symlink resumed>) = 0 [pid 4996] mkdir("./26", 0777 [pid 5322] symlink("/dev/binderfs", "./binderfs" [pid 4998] <... clone resumed>, child_tidptr=0x5555570865d0) = 5324 [pid 5322] <... symlink resumed>) = 0 [pid 5321] memfd_create("syzkaller", 0 [pid 4996] <... mkdir resumed>) = 0 [pid 5322] memfd_create("syzkaller", 0 [pid 5321] <... memfd_create resumed>) = 3 [pid 4996] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5322] <... memfd_create resumed>) = 3 [pid 5321] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5322] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 4996] <... openat resumed>) = 3 [pid 5322] <... mmap resumed>) = 0x7faaa11e5000 [pid 5321] <... mmap resumed>) = 0x7faaa11e5000 [pid 4996] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 4996] close(3) = 0 [pid 4996] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5324 attached , child_tidptr=0x5555570865d0) = 5325 [pid 4995] <... umount2 resumed>) = 0 [pid 4995] umount2("./25/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4995] lstat("./25/file0", [pid 5324] chdir("./26" [pid 4995] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5324] <... chdir resumed>) = 0 [pid 4995] umount2("./25/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4995] openat(AT_FDCWD, "./25/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5324] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4995] <... openat resumed>) = 4 ./strace-static-x86_64: Process 5325 attached [pid 5325] chdir("./26" [pid 4995] fstat(4, [pid 5325] <... chdir resumed>) = 0 [pid 5325] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4995] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5325] <... prctl resumed>) = 0 [pid 4995] getdents64(4, [pid 5325] setpgid(0, 0 [pid 5324] <... prctl resumed>) = 0 [pid 4995] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 5325] <... setpgid resumed>) = 0 [pid 5325] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4995] getdents64(4, [pid 5325] <... openat resumed>) = 3 [pid 5325] write(3, "1000", 4 [pid 4995] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 5325] <... write resumed>) = 4 [pid 5324] setpgid(0, 0 [pid 5325] close(3 [pid 4995] close(4 [pid 5325] <... close resumed>) = 0 [pid 4995] <... close resumed>) = 0 [pid 5324] <... setpgid resumed>) = 0 [pid 5325] symlink("/dev/binderfs", "./binderfs" [pid 4995] rmdir("./25/file0" [pid 5325] <... symlink resumed>) = 0 [pid 5324] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4995] <... rmdir resumed>) = 0 [pid 5325] memfd_create("syzkaller", 0) = 3 [pid 5324] <... openat resumed>) = 3 [pid 4995] getdents64(3, [pid 5325] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5324] write(3, "1000", 4 [pid 4995] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 5325] <... mmap resumed>) = 0x7faaa11e5000 [pid 5324] <... write resumed>) = 4 [pid 4995] close(3 [pid 5324] close(3 [pid 4995] <... close resumed>) = 0 [pid 4995] rmdir("./25" [pid 5324] <... close resumed>) = 0 [pid 4995] <... rmdir resumed>) = 0 [pid 5324] symlink("/dev/binderfs", "./binderfs" [pid 4995] mkdir("./26", 0777 [pid 5324] <... symlink resumed>) = 0 [pid 4995] <... mkdir resumed>) = 0 [pid 4995] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5324] memfd_create("syzkaller", 0 [pid 4995] <... openat resumed>) = 3 [pid 5324] <... memfd_create resumed>) = 3 [pid 4995] ioctl(3, LOOP_CLR_FD [pid 5324] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 4995] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4995] close(3) = 0 [pid 5324] <... mmap resumed>) = 0x7faaa11e5000 [pid 4995] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570865d0) = 5326 [pid 4999] <... umount2 resumed>) = 0 [pid 4999] umount2("./26/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5326 attached [pid 4999] lstat("./26/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] umount2("./26/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5326] chdir("./26" [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5326] <... chdir resumed>) = 0 [pid 5326] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5326] setpgid(0, 0) = 0 [pid 5326] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4999] openat(AT_FDCWD, "./26/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5326] <... openat resumed>) = 3 [pid 4999] <... openat resumed>) = 4 [pid 5326] write(3, "1000", 4 [pid 5321] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 4999] fstat(4, [pid 5326] <... write resumed>) = 4 [pid 5326] close(3) = 0 [pid 4999] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5326] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4999] getdents64(4, [pid 5326] memfd_create("syzkaller", 0 [pid 4999] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 5326] <... memfd_create resumed>) = 3 [pid 4999] getdents64(4, [pid 5326] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 4999] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 5326] <... mmap resumed>) = 0x7faaa11e5000 [pid 4999] close(4) = 0 [pid 4999] rmdir("./26/file0") = 0 [pid 4999] getdents64(3, 0x555557087620 /* 0 entries */, 32768) = 0 [pid 4999] close(3) = 0 [pid 4999] rmdir("./26") = 0 [pid 4999] mkdir("./27", 0777) = 0 [pid 4999] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 4999] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 4999] close(3) = 0 [pid 4999] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570865d0) = 5327 ./strace-static-x86_64: Process 5327 attached [pid 5327] chdir("./27") = 0 [pid 5327] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5327] setpgid(0, 0) = 0 [pid 5327] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5322] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5327] write(3, "1000", 4) = 4 [pid 5325] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5327] close(3) = 0 [pid 5327] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5327] memfd_create("syzkaller", 0) = 3 [pid 5327] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7faaa11e5000 [pid 5324] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5326] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5321] <... write resumed>) = 4194304 [pid 5321] munmap(0x7faaa11e5000, 4194304) = 0 [pid 5321] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 5321] ioctl(4, LOOP_SET_FD, 3 [pid 5327] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5324] <... write resumed>) = 4194304 [pid 5321] <... ioctl resumed>) = 0 [pid 5324] munmap(0x7faaa11e5000, 4194304 [pid 5321] close(3 [pid 5324] <... munmap resumed>) = 0 [pid 5322] <... write resumed>) = 4194304 [pid 5321] <... close resumed>) = 0 [pid 5324] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5322] munmap(0x7faaa11e5000, 4194304 [pid 5321] mkdir("./file0", 0777 [pid 5324] <... openat resumed>) = 4 [pid 5322] <... munmap resumed>) = 0 [pid 5321] <... mkdir resumed>) = 0 [pid 5324] ioctl(4, LOOP_SET_FD, 3 [pid 5325] <... write resumed>) = 4194304 [pid 5324] <... ioctl resumed>) = 0 [pid 5321] mount("/dev/loop5", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5322] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [ 101.900933][ T5321] loop5: detected capacity change from 0 to 8192 [ 101.938088][ T5324] loop3: detected capacity change from 0 to 8192 [pid 5322] ioctl(4, LOOP_SET_FD, 3 [pid 5324] close(3) = 0 [pid 5324] mkdir("./file0", 0777 [pid 5327] <... write resumed>) = 4194304 [pid 5326] <... write resumed>) = 4194304 [pid 5325] munmap(0x7faaa11e5000, 4194304 [pid 5324] <... mkdir resumed>) = 0 [pid 5322] <... ioctl resumed>) = 0 [pid 5327] munmap(0x7faaa11e5000, 4194304) = 0 [pid 5327] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5327] ioctl(4, LOOP_SET_FD, 3 [pid 5326] munmap(0x7faaa11e5000, 4194304 [pid 5325] <... munmap resumed>) = 0 [pid 5324] mount("/dev/loop3", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5322] close(3 [pid 5326] <... munmap resumed>) = 0 [pid 5325] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5322] <... close resumed>) = 0 [pid 5326] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5325] <... openat resumed>) = 4 [pid 5322] mkdir("./file0", 0777 [pid 5326] <... openat resumed>) = 4 [pid 5325] ioctl(4, LOOP_SET_FD, 3 [pid 5322] <... mkdir resumed>) = 0 [pid 5322] mount("/dev/loop2", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5327] <... ioctl resumed>) = 0 [pid 5326] ioctl(4, LOOP_SET_FD, 3 [pid 5327] close(3) = 0 [pid 5327] mkdir("./file0", 0777) = 0 [ 101.946173][ T5322] loop2: detected capacity change from 0 to 8192 [ 101.954130][ T5321] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 101.967314][ T5321] REISERFS (device loop5): found reiserfs format "3.5" with non-standard journal [ 101.971710][ T5327] loop4: detected capacity change from 0 to 8192 [ 101.976616][ T5321] REISERFS (device loop5): using ordered data mode [ 101.989684][ T5321] reiserfs: using flush barriers [ 101.990914][ T5325] loop1: detected capacity change from 0 to 8192 [pid 5327] mount("/dev/loop4", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5326] <... ioctl resumed>) = 0 [pid 5326] close(3) = 0 [pid 5326] mkdir("./file0", 0777) = 0 [pid 5326] mount("/dev/loop0", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5325] <... ioctl resumed>) = 0 [pid 5325] close(3) = 0 [pid 5325] mkdir("./file0", 0777) = 0 [ 102.002050][ T5324] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 102.003159][ T5326] loop0: detected capacity change from 0 to 8192 [ 102.015585][ T5322] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 102.028054][ T5321] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 102.051129][ T5321] REISERFS (device loop5): checking transaction log (loop5) [ 102.051723][ T5327] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 102.058623][ T5324] REISERFS (device loop3): found reiserfs format "3.5" with non-standard journal [ 102.072592][ T5321] REISERFS (device loop5): Using tea hash to sort names [ 102.081084][ T5324] REISERFS (device loop3): using ordered data mode [ 102.088215][ T5325] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 102.094161][ T5324] reiserfs: using flush barriers [ 102.112241][ T5327] REISERFS (device loop4): found reiserfs format "3.5" with non-standard journal [ 102.112402][ T5326] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 102.121787][ T5322] REISERFS (device loop2): found reiserfs format "3.5" with non-standard journal [ 102.135862][ T5325] REISERFS (device loop1): found reiserfs format "3.5" with non-standard journal [ 102.143710][ T5322] REISERFS (device loop2): using ordered data mode [ 102.155014][ T5327] REISERFS (device loop4): using ordered data mode [ 102.159410][ T5322] reiserfs: using flush barriers [ 102.167408][ T5321] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 102.171758][ T5322] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5325] mount("/dev/loop1", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5321] <... mount resumed>) = 0 [pid 5321] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5321] chdir("./file0") = 0 [pid 5321] ioctl(4, LOOP_CLR_FD) = 0 [pid 5321] close(4) = 0 [pid 5322] <... mount resumed>) = 0 [pid 5321] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5321] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0) = 0x20000000 [ 102.181170][ T5324] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 102.196287][ T5322] REISERFS (device loop2): checking transaction log (loop2) [ 102.213420][ T5327] reiserfs: using flush barriers [ 102.220040][ T5322] REISERFS (device loop2): Using tea hash to sort names [ 102.232433][ T5322] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 5321] ioctl(4, FS_IOC_GETVERSION [pid 5322] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5321] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5322] <... openat resumed>) = 3 [pid 5322] chdir("./file0") = 0 [pid 5322] ioctl(4, LOOP_CLR_FD) = 0 [pid 5322] close(4) = 0 [pid 5322] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5322] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0) = 0x20000000 [pid 5322] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5322] exit_group(0) = ? [pid 5322] +++ exited with 0 +++ [pid 5321] exit_group(0 [pid 4997] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5322, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=15 /* 0.15 s */} --- [pid 5321] <... exit_group resumed>) = ? [pid 5321] +++ exited with 0 +++ [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5321, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- [ 102.244515][ T5326] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 102.254004][ T5325] REISERFS (device loop1): using ordered data mode [ 102.258413][ T5326] REISERFS (device loop0): using ordered data mode [ 102.268229][ T5327] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 102.274648][ T5325] reiserfs: using flush barriers [ 102.284939][ T5326] reiserfs: using flush barriers [ 102.290785][ T5324] REISERFS (device loop3): checking transaction log (loop3) [pid 4997] umount2("./26", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] umount2("./26", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4997] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4997] openat(AT_FDCWD, "./26", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 4997] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4997] getdents64(3, 0x555557087620 /* 4 entries */, 32768) = 112 [pid 4997] umount2("./26/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 102.303680][ T5327] REISERFS (device loop4): checking transaction log (loop4) [ 102.305321][ T5325] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 102.315573][ T5324] REISERFS (device loop3): Using tea hash to sort names [ 102.337366][ T5327] REISERFS (device loop4): Using tea hash to sort names [ 102.340629][ T5325] REISERFS (device loop1): checking transaction log (loop1) [pid 4997] lstat("./26/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4997] unlink("./26/binderfs") = 0 [pid 4997] umount2("./26/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./26", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5000] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] getdents64(3, 0x555557087620 /* 4 entries */, 32768) = 112 [pid 5000] umount2("./26/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./26/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] unlink("./26/binderfs" [pid 5327] <... mount resumed>) = 0 [pid 5327] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5000] <... unlink resumed>) = 0 [pid 5327] <... openat resumed>) = 3 [pid 5000] umount2("./26/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5327] chdir("./file0") = 0 [pid 5327] ioctl(4, LOOP_CLR_FD) = 0 [ 102.345193][ T5327] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 102.352716][ T5326] 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 [ 102.378113][ T5324] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 102.391182][ T5325] REISERFS (device loop1): Using tea hash to sort names [pid 5327] close(4) = 0 [pid 5327] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5327] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0) = 0x20000000 [pid 5327] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5327] exit_group(0) = ? [pid 5327] +++ exited with 0 +++ [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5327, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=11 /* 0.11 s */} --- [pid 4999] umount2("./27", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./27", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 4999] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] getdents64(3, 0x555557087620 /* 4 entries */, 32768) = 112 [pid 4999] umount2("./27/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] lstat("./27/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4999] unlink("./27/binderfs") = 0 [pid 4999] umount2("./27/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5324] <... mount resumed>) = 0 [pid 5324] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5324] chdir("./file0") = 0 [pid 5324] ioctl(4, LOOP_CLR_FD) = 0 [pid 5324] close(4) = 0 [pid 5324] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [ 102.410158][ T5325] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [pid 5324] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0) = 0x20000000 [pid 5324] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5324] exit_group(0) = ? [pid 5324] +++ exited with 0 +++ [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5324, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=15 /* 0.15 s */} --- [pid 5325] <... mount resumed>) = 0 [pid 5325] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 4998] umount2("./26", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./26", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5325] <... openat resumed>) = 3 [pid 4998] <... openat resumed>) = 3 [pid 4998] fstat(3, [pid 5325] chdir("./file0" [pid 4998] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] getdents64(3, [pid 5325] <... chdir resumed>) = 0 [pid 5325] ioctl(4, LOOP_CLR_FD [pid 4998] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 4998] umount2("./26/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./26/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4998] unlink("./26/binderfs" [pid 5325] <... ioctl resumed>) = 0 [pid 5325] close(4 [pid 4998] <... unlink resumed>) = 0 [pid 4998] umount2("./26/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5325] <... close resumed>) = 0 [pid 5325] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5325] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0) = 0x20000000 [pid 5325] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5325] exit_group(0) = ? [pid 5325] +++ exited with 0 +++ [pid 4996] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5325, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- [pid 4999] <... umount2 resumed>) = 0 [pid 4996] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 4996] umount2("./26", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] umount2("./27/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4996] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4996] openat(AT_FDCWD, "./26", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4999] lstat("./27/file0", [pid 4996] <... openat resumed>) = 3 [pid 4999] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4996] fstat(3, [pid 4999] umount2("./27/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4996] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4996] getdents64(3, [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4996] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 4999] openat(AT_FDCWD, "./27/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4996] umount2("./26/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] <... openat resumed>) = 4 [pid 4996] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] fstat(4, [pid 4996] lstat("./26/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4999] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4996] unlink("./26/binderfs" [pid 4999] getdents64(4, [pid 4996] <... unlink resumed>) = 0 [pid 4996] umount2("./26/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4999] getdents64(4, 0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4999] close(4) = 0 [pid 4999] rmdir("./27/file0") = 0 [pid 4999] getdents64(3, 0x555557087620 /* 0 entries */, 32768) = 0 [pid 4999] close(3) = 0 [pid 4999] rmdir("./27") = 0 [pid 4999] mkdir("./28", 0777) = 0 [pid 4999] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 4999] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 4999] close(3) = 0 [ 102.458170][ T5326] REISERFS (device loop0): checking transaction log (loop0) [pid 4999] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570865d0) = 5334 [pid 5000] <... umount2 resumed>) = 0 [pid 5000] umount2("./26/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./26/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 ./strace-static-x86_64: Process 5334 attached [pid 4997] <... umount2 resumed>) = 0 [pid 5000] umount2("./26/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./26/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5334] chdir("./28" [pid 4998] <... umount2 resumed>) = 0 [pid 4997] umount2("./26/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5334] <... chdir resumed>) = 0 [pid 4997] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5334] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4997] lstat("./26/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5334] <... prctl resumed>) = 0 [pid 4997] umount2("./26/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5334] setpgid(0, 0) = 0 [pid 4997] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4997] openat(AT_FDCWD, "./26/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5334] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4997] <... openat resumed>) = 4 [pid 4997] fstat(4, [pid 5334] <... openat resumed>) = 3 [pid 4997] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5334] write(3, "1000", 4 [pid 4997] getdents64(4, [pid 5000] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] getdents64(4, [pid 5334] <... write resumed>) = 4 [pid 4997] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 5334] close(3 [pid 4997] getdents64(4, [pid 5334] <... close resumed>) = 0 [pid 4998] umount2("./26/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4997] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 5000] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 5000] getdents64(4, 0x55555708f660 /* 0 entries */, 32768) = 0 [pid 5000] close(4) = 0 [pid 5000] rmdir("./26/file0" [pid 5334] symlink("/dev/binderfs", "./binderfs" [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4997] close(4 [pid 5334] <... symlink resumed>) = 0 [pid 4997] <... close resumed>) = 0 [pid 5334] memfd_create("syzkaller", 0 [pid 4997] rmdir("./26/file0" [pid 5334] <... memfd_create resumed>) = 3 [pid 5000] <... rmdir resumed>) = 0 [pid 5334] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 4998] lstat("./26/file0", [pid 4997] <... rmdir resumed>) = 0 [pid 5000] getdents64(3, [pid 5334] <... mmap resumed>) = 0x7faaa11e5000 [pid 4997] getdents64(3, [pid 5000] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 4997] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 5000] close(3) = 0 [pid 5000] rmdir("./26") = 0 [pid 5000] mkdir("./27", 0777) = 0 [pid 5000] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5000] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5000] close(3) = 0 [pid 5000] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570865d0) = 5335 [pid 4998] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4997] close(3./strace-static-x86_64: Process 5335 attached [pid 4998] umount2("./26/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4997] <... close resumed>) = 0 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4997] rmdir("./26") = 0 [pid 5335] chdir("./27" [pid 4998] openat(AT_FDCWD, "./26/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5335] <... chdir resumed>) = 0 [pid 4998] <... openat resumed>) = 4 [pid 4997] mkdir("./27", 0777) = 0 [pid 4998] fstat(4, [pid 5335] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4998] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4997] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5335] setpgid(0, 0 [pid 4998] getdents64(4, [pid 4997] <... openat resumed>) = 3 [pid 5335] <... setpgid resumed>) = 0 [pid 4998] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4997] ioctl(3, LOOP_CLR_FD [pid 4998] getdents64(4, [pid 4997] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4998] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 5335] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4998] close(4 [pid 4997] close(3 [pid 4998] <... close resumed>) = 0 [pid 4997] <... close resumed>) = 0 [pid 4998] rmdir("./26/file0" [pid 4997] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4998] <... rmdir resumed>) = 0 [pid 4998] getdents64(3, [pid 4997] <... clone resumed>, child_tidptr=0x5555570865d0) = 5336 [pid 4998] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 4998] close(3 [pid 5335] <... openat resumed>) = 3 [pid 4998] <... close resumed>) = 0 [pid 4998] rmdir("./26") = 0 [pid 4998] mkdir("./27", 0777) = 0 [pid 5335] write(3, "1000", 4 [pid 4998] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 4998] ioctl(3, LOOP_CLR_FD [pid 5335] <... write resumed>) = 4 [pid 4998] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4998] close(3 [pid 5335] close(3 [pid 4998] <... close resumed>) = 0 [pid 5335] <... close resumed>) = 0 [pid 4998] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5335] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4998] <... clone resumed>, child_tidptr=0x5555570865d0) = 5337 [pid 5335] memfd_create("syzkaller", 0) = 3 [pid 5335] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7faaa11e5000 ./strace-static-x86_64: Process 5337 attached ./strace-static-x86_64: Process 5336 attached [pid 5337] chdir("./27") = 0 [pid 5337] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5336] chdir("./27" [pid 5337] <... prctl resumed>) = 0 [pid 5337] setpgid(0, 0) = 0 [pid 5337] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5336] <... chdir resumed>) = 0 [pid 5336] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5337] <... openat resumed>) = 3 [pid 5336] <... prctl resumed>) = 0 [pid 5337] write(3, "1000", 4) = 4 [pid 5337] close(3) = 0 [pid 5336] setpgid(0, 0 [pid 5337] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5337] memfd_create("syzkaller", 0 [pid 5336] <... setpgid resumed>) = 0 [pid 5337] <... memfd_create resumed>) = 3 [pid 4996] <... umount2 resumed>) = 0 [pid 5337] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5336] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5337] <... mmap resumed>) = 0x7faaa11e5000 [pid 5336] <... openat resumed>) = 3 [ 102.524362][ T5326] REISERFS (device loop0): Using tea hash to sort names [ 102.550079][ T5326] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 4996] umount2("./26/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5336] write(3, "1000", 4 [pid 4996] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5336] <... write resumed>) = 4 [pid 5334] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 4996] lstat("./26/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5336] close(3) = 0 [pid 4996] umount2("./26/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4996] openat(AT_FDCWD, "./26/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5336] symlink("/dev/binderfs", "./binderfs" [pid 4996] <... openat resumed>) = 4 [pid 4996] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5336] <... symlink resumed>) = 0 [pid 4996] getdents64(4, [pid 5336] memfd_create("syzkaller", 0 [pid 4996] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4996] getdents64(4, [pid 5336] <... memfd_create resumed>) = 3 [pid 4996] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 5336] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5326] <... mount resumed>) = 0 [pid 4996] close(4) = 0 [pid 5326] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 4996] rmdir("./26/file0" [pid 5336] <... mmap resumed>) = 0x7faaa11e5000 [pid 5326] <... openat resumed>) = 3 [pid 4996] <... rmdir resumed>) = 0 [pid 5326] chdir("./file0" [pid 4996] getdents64(3, [pid 5326] <... chdir resumed>) = 0 [pid 4996] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 5326] ioctl(4, LOOP_CLR_FD [pid 4996] close(3 [pid 5326] <... ioctl resumed>) = 0 [pid 4996] <... close resumed>) = 0 [pid 5326] close(4 [pid 4996] rmdir("./26" [pid 5326] <... close resumed>) = 0 [pid 4996] <... rmdir resumed>) = 0 [pid 5326] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4996] mkdir("./27", 0777 [pid 5326] <... openat resumed>) = 4 [pid 4996] <... mkdir resumed>) = 0 [pid 5326] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0) = 0x20000000 [pid 4996] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5326] ioctl(4, FS_IOC_GETVERSION [pid 4996] <... openat resumed>) = 3 [pid 5326] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5326] exit_group(0 [pid 4996] ioctl(3, LOOP_CLR_FD [pid 5326] <... exit_group resumed>) = ? [pid 4996] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4996] close(3) = 0 [pid 4996] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5326] +++ exited with 0 +++ [pid 4995] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5326, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 4996] <... clone resumed>, child_tidptr=0x5555570865d0) = 5338 ./strace-static-x86_64: Process 5338 attached [pid 5338] chdir("./27") = 0 [pid 4995] umount2("./26", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5338] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4995] openat(AT_FDCWD, "./26", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5338] <... prctl resumed>) = 0 [pid 5338] setpgid(0, 0 [pid 4995] <... openat resumed>) = 3 [pid 4995] fstat(3, [pid 5338] <... setpgid resumed>) = 0 [pid 4995] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5338] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4995] getdents64(3, 0x555557087620 /* 4 entries */, 32768) = 112 [pid 4995] umount2("./26/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4995] lstat("./26/binderfs", [pid 5338] <... openat resumed>) = 3 [pid 4995] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5338] write(3, "1000", 4 [pid 4995] unlink("./26/binderfs" [pid 5338] <... write resumed>) = 4 [pid 5338] close(3) = 0 [pid 4995] <... unlink resumed>) = 0 [pid 5338] symlink("/dev/binderfs", "./binderfs" [pid 4995] umount2("./26/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5338] <... symlink resumed>) = 0 [pid 5338] memfd_create("syzkaller", 0) = 3 [pid 5338] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7faaa11e5000 [pid 5335] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5336] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 4995] <... umount2 resumed>) = 0 [pid 5337] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 4995] umount2("./26/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4995] lstat("./26/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4995] umount2("./26/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4995] openat(AT_FDCWD, "./26/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 4995] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4995] getdents64(4, 0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4995] getdents64(4, 0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4995] close(4) = 0 [pid 4995] rmdir("./26/file0") = 0 [pid 4995] getdents64(3, 0x555557087620 /* 0 entries */, 32768) = 0 [pid 4995] close(3) = 0 [pid 4995] rmdir("./26") = 0 [pid 4995] mkdir("./27", 0777) = 0 [pid 5334] <... write resumed>) = 4194304 [pid 4995] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 4995] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 4995] close(3) = 0 [pid 4995] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570865d0) = 5339 ./strace-static-x86_64: Process 5339 attached [pid 5339] chdir("./27") = 0 [pid 5339] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5339] setpgid(0, 0) = 0 [pid 5339] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5338] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5339] <... openat resumed>) = 3 [pid 5339] write(3, "1000", 4 [pid 5335] <... write resumed>) = 4194304 [pid 5334] munmap(0x7faaa11e5000, 4194304 [pid 5339] <... write resumed>) = 4 [pid 5334] <... munmap resumed>) = 0 [pid 5339] close(3) = 0 [pid 5334] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5339] symlink("/dev/binderfs", "./binderfs" [pid 5334] <... openat resumed>) = 4 [pid 5339] <... symlink resumed>) = 0 [pid 5334] ioctl(4, LOOP_SET_FD, 3 [pid 5339] memfd_create("syzkaller", 0) = 3 [pid 5339] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7faaa11e5000 [pid 5334] <... ioctl resumed>) = 0 [pid 5334] close(3) = 0 [pid 5334] mkdir("./file0", 0777) = 0 [pid 5335] munmap(0x7faaa11e5000, 4194304 [pid 5334] mount("/dev/loop4", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5336] <... write resumed>) = 4194304 [pid 5335] <... munmap resumed>) = 0 [pid 5335] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 5335] ioctl(4, LOOP_SET_FD, 3 [pid 5336] munmap(0x7faaa11e5000, 4194304) = 0 [pid 5336] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [ 102.800581][ T5334] loop4: detected capacity change from 0 to 8192 [ 102.839724][ T5335] loop5: detected capacity change from 0 to 8192 [pid 5336] ioctl(4, LOOP_SET_FD, 3 [pid 5337] <... write resumed>) = 4194304 [pid 5338] <... write resumed>) = 4194304 [pid 5338] munmap(0x7faaa11e5000, 4194304) = 0 [pid 5336] <... ioctl resumed>) = 0 [pid 5336] close(3) = 0 [pid 5336] mkdir("./file0", 0777) = 0 [pid 5338] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5336] mount("/dev/loop2", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5338] ioctl(4, LOOP_SET_FD, 3 [pid 5337] munmap(0x7faaa11e5000, 4194304 [pid 5335] <... ioctl resumed>) = 0 [pid 5339] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5338] <... ioctl resumed>) = 0 [pid 5337] <... munmap resumed>) = 0 [pid 5335] close(3 [pid 5337] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5335] <... close resumed>) = 0 [pid 5337] <... openat resumed>) = 4 [ 102.845914][ T5336] loop2: detected capacity change from 0 to 8192 [ 102.853691][ T5334] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 102.869735][ T5338] loop1: detected capacity change from 0 to 8192 [ 102.877746][ T5334] REISERFS (device loop4): found reiserfs format "3.5" with non-standard journal [ 102.886341][ T5337] loop3: detected capacity change from 0 to 8192 [ 102.887717][ T5334] REISERFS (device loop4): using ordered data mode [pid 5335] mkdir("./file0", 0777 [pid 5337] ioctl(4, LOOP_SET_FD, 3 [pid 5335] <... mkdir resumed>) = 0 [pid 5337] <... ioctl resumed>) = 0 [pid 5335] mount("/dev/loop5", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5338] close(3) = 0 [pid 5338] mkdir("./file0", 0777) = 0 [pid 5338] mount("/dev/loop1", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5337] close(3) = 0 [pid 5337] mkdir("./file0", 0777) = 0 [ 102.893281][ T5336] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 102.899866][ T5334] reiserfs: using flush barriers [ 102.919967][ T5334] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 102.937017][ T5334] REISERFS (device loop4): checking transaction log (loop4) [ 102.944420][ T5335] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 102.945104][ T5334] REISERFS (device loop4): Using tea hash to sort names [ 102.958555][ T5335] REISERFS (device loop5): found reiserfs format "3.5" with non-standard journal [ 102.973795][ T5338] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 102.982667][ T5336] REISERFS (device loop2): found reiserfs format "3.5" with non-standard journal [pid 5337] mount("/dev/loop3", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5339] <... write resumed>) = 4194304 [ 102.996346][ T5336] REISERFS (device loop2): using ordered data mode [ 102.997871][ T5337] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 103.003041][ T5336] reiserfs: using flush barriers [ 103.020825][ T5338] REISERFS (device loop1): found reiserfs format "3.5" with non-standard journal [ 103.023436][ T5334] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 103.030861][ T5335] REISERFS (device loop5): using ordered data mode [pid 5339] munmap(0x7faaa11e5000, 4194304 [pid 5334] <... mount resumed>) = 0 [pid 5339] <... munmap resumed>) = 0 [ 103.039342][ T5336] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 103.046896][ T5335] reiserfs: using flush barriers [ 103.061856][ T5337] REISERFS (device loop3): found reiserfs format "3.5" with non-standard journal [ 103.075660][ T5335] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 103.076328][ T5338] REISERFS (device loop1): using ordered data mode [pid 5334] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5339] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5334] <... openat resumed>) = 3 [pid 5339] <... openat resumed>) = 4 [pid 5334] chdir("./file0" [pid 5339] ioctl(4, LOOP_SET_FD, 3 [pid 5334] <... chdir resumed>) = 0 [ 103.093363][ T5335] REISERFS (device loop5): checking transaction log (loop5) [ 103.098947][ T5337] REISERFS (device loop3): using ordered data mode [ 103.108254][ T5335] REISERFS (device loop5): Using tea hash to sort names [ 103.113209][ T5336] REISERFS (device loop2): checking transaction log (loop2) [ 103.120914][ T5335] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 103.127313][ T5337] reiserfs: using flush barriers [ 103.136720][ T5338] reiserfs: using flush barriers [pid 5334] ioctl(4, LOOP_CLR_FD) = 0 [pid 5334] close(4) = 0 [pid 5334] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5334] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0) = 0x20000000 [pid 5334] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5334] exit_group(0) = ? [pid 5334] +++ exited with 0 +++ [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5334, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=12 /* 0.12 s */} --- [pid 4999] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 4999] umount2("./28", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./28", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 4999] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] getdents64(3, 0x555557087620 /* 4 entries */, 32768) = 112 [pid 4999] umount2("./28/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] lstat("./28/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4999] unlink("./28/binderfs") = 0 [pid 4999] umount2("./28/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5339] <... ioctl resumed>) = 0 [pid 5339] close(3) = 0 [pid 5339] mkdir("./file0", 0777) = 0 [pid 5339] mount("/dev/loop0", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5335] <... mount resumed>) = 0 [pid 5335] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5335] chdir("./file0") = 0 [pid 5335] ioctl(4, LOOP_CLR_FD) = 0 [pid 5335] close(4) = 0 [pid 5335] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5335] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0) = 0x20000000 [pid 5335] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5335] exit_group(0) = ? [pid 5335] +++ exited with 0 +++ [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5335, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} --- [pid 5000] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5000] umount2("./27", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./27", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5000] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] getdents64(3, 0x555557087620 /* 4 entries */, 32768) = 112 [pid 5000] umount2("./27/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./27/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] unlink("./27/binderfs") = 0 [ 103.141353][ T5339] loop0: detected capacity change from 0 to 8192 [ 103.152665][ T5338] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 103.170393][ T5337] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 103.175543][ T5339] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 103.190382][ T5337] REISERFS (device loop3): checking transaction log (loop3) [ 103.201994][ T5336] REISERFS (device loop2): Using tea hash to sort names [ 103.207522][ T5338] REISERFS (device loop1): checking transaction log (loop1) [ 103.215312][ T5337] REISERFS (device loop3): Using tea hash to sort names [ 103.230681][ T5336] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 103.240757][ T5339] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [pid 5000] umount2("./27/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] <... umount2 resumed>) = 0 [pid 4999] umount2("./28/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] lstat("./28/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] umount2("./28/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./28/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 4999] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] getdents64(4, 0x55555708f660 /* 2 entries */, 32768) = 48 [ 103.249350][ T5338] REISERFS (device loop1): Using tea hash to sort names [ 103.250503][ T5339] REISERFS (device loop0): using ordered data mode [ 103.263524][ T5339] reiserfs: using flush barriers [ 103.269759][ T5337] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 103.273312][ T5339] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5338] <... mount resumed>) = 0 [pid 5337] <... mount resumed>) = 0 [pid 5336] <... mount resumed>) = 0 [pid 5338] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5337] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5336] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5000] <... umount2 resumed>) = 0 [pid 4999] getdents64(4, [pid 5338] <... openat resumed>) = 3 [pid 5338] chdir("./file0" [pid 5337] <... openat resumed>) = 3 [pid 5336] <... openat resumed>) = 3 [pid 5000] umount2("./27/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 5338] <... chdir resumed>) = 0 [pid 5337] chdir("./file0" [pid 5336] chdir("./file0" [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] close(4 [pid 5338] ioctl(4, LOOP_CLR_FD [pid 5337] <... chdir resumed>) = 0 [pid 5336] <... chdir resumed>) = 0 [pid 5000] lstat("./27/file0", [pid 5338] <... ioctl resumed>) = 0 [pid 5337] ioctl(4, LOOP_CLR_FD [pid 5336] ioctl(4, LOOP_CLR_FD [pid 4999] <... close resumed>) = 0 [pid 5337] <... ioctl resumed>) = 0 [pid 5000] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5338] close(4 [pid 5336] <... ioctl resumed>) = 0 [pid 5337] close(4 [pid 4999] rmdir("./28/file0" [pid 5338] <... close resumed>) = 0 [pid 5000] umount2("./27/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5336] close(4 [pid 4999] <... rmdir resumed>) = 0 [pid 5338] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5337] <... close resumed>) = 0 [pid 5336] <... close resumed>) = 0 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] getdents64(3, [pid 5338] <... openat resumed>) = 4 [pid 5337] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5336] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5000] openat(AT_FDCWD, "./27/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4999] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 5338] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 5337] <... openat resumed>) = 4 [pid 5338] <... mmap resumed>) = 0x20000000 [pid 5337] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 5336] <... openat resumed>) = 4 [pid 5000] <... openat resumed>) = 4 [pid 4999] close(3 [pid 5338] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5337] <... mmap resumed>) = 0x20000000 [pid 5336] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 5000] fstat(4, [pid 4999] <... close resumed>) = 0 [pid 5338] exit_group(0 [pid 5337] ioctl(4, FS_IOC_GETVERSION [pid 5336] <... mmap resumed>) = 0x20000000 [pid 5000] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] rmdir("./28" [pid 5338] <... exit_group resumed>) = ? [pid 5337] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5336] ioctl(4, FS_IOC_GETVERSION [pid 5000] getdents64(4, [pid 4999] <... rmdir resumed>) = 0 [pid 5338] +++ exited with 0 +++ [pid 5337] exit_group(0 [pid 5336] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5000] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4999] mkdir("./29", 0777 [pid 5337] <... exit_group resumed>) = ? [pid 5336] exit_group(0 [pid 5000] getdents64(4, [pid 4996] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5338, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=16 /* 0.16 s */} --- [pid 4999] <... mkdir resumed>) = 0 [pid 4996] restart_syscall(<... resuming interrupted clone ...> [pid 5337] +++ exited with 0 +++ [pid 5336] <... exit_group resumed>) = ? [pid 5000] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4999] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4996] <... restart_syscall resumed>) = 0 [pid 5336] +++ exited with 0 +++ [pid 5000] close(4 [pid 4999] <... openat resumed>) = 3 [pid 5000] <... close resumed>) = 0 [pid 4999] ioctl(3, LOOP_CLR_FD [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5337, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- [pid 4997] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5336, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- [pid 5000] rmdir("./27/file0" [pid 4999] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4998] restart_syscall(<... resuming interrupted clone ...> [pid 4996] umount2("./27", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4997] umount2("./27", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4996] openat(AT_FDCWD, "./27", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5000] <... rmdir resumed>) = 0 [pid 4999] close(3 [pid 4998] <... restart_syscall resumed>) = 0 [pid 4997] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4996] <... openat resumed>) = 3 [pid 5000] getdents64(3, [pid 4999] <... close resumed>) = 0 [pid 4997] openat(AT_FDCWD, "./27", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4996] fstat(3, [pid 5000] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 4999] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4997] <... openat resumed>) = 3 [ 103.284589][ T5338] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 103.305287][ T5339] REISERFS (device loop0): checking transaction log (loop0) [ 103.317430][ T5339] REISERFS (device loop0): Using tea hash to sort names [pid 4996] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] close(3 [pid 4998] umount2("./27", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4997] fstat(3, [pid 4996] getdents64(3, [pid 4997] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4996] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 4997] getdents64(3, [pid 4996] umount2("./27/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] <... close resumed>) = 0 [pid 4999] <... clone resumed>, child_tidptr=0x5555570865d0) = 5347 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4997] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 4996] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5347 attached [pid 5339] <... mount resumed>) = 0 [pid 5000] rmdir("./27" [pid 4998] openat(AT_FDCWD, "./27", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4997] umount2("./27/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4996] lstat("./27/binderfs", [pid 5347] chdir("./29" [pid 5339] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5000] <... rmdir resumed>) = 0 [pid 4998] <... openat resumed>) = 3 [pid 4997] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4996] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5347] <... chdir resumed>) = 0 [pid 5339] <... openat resumed>) = 3 [pid 5000] mkdir("./28", 0777 [pid 4998] fstat(3, [pid 4997] lstat("./27/binderfs", [pid 4996] unlink("./27/binderfs" [pid 5347] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5339] chdir("./file0" [pid 5000] <... mkdir resumed>) = 0 [pid 4998] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4997] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4996] <... unlink resumed>) = 0 [pid 5347] <... prctl resumed>) = 0 [pid 5339] <... chdir resumed>) = 0 [pid 5000] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4998] getdents64(3, [pid 4997] unlink("./27/binderfs" [pid 4996] umount2("./27/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5347] setpgid(0, 0 [pid 5339] ioctl(4, LOOP_CLR_FD [pid 5000] <... openat resumed>) = 3 [pid 4998] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 4997] <... unlink resumed>) = 0 [pid 5347] <... setpgid resumed>) = 0 [pid 5339] <... ioctl resumed>) = 0 [pid 5000] ioctl(3, LOOP_CLR_FD [pid 4998] umount2("./27/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4997] umount2("./27/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5347] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5339] close(4 [pid 5000] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5347] <... openat resumed>) = 3 [pid 5339] <... close resumed>) = 0 [pid 5000] close(3 [pid 4998] lstat("./27/binderfs", [pid 5347] write(3, "1000", 4 [pid 5339] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5000] <... close resumed>) = 0 [pid 4998] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5347] <... write resumed>) = 4 [pid 5347] close(3 [pid 5339] <... openat resumed>) = 4 [pid 5000] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4998] unlink("./27/binderfs" [pid 5347] <... close resumed>) = 0 [pid 5339] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 5347] symlink("/dev/binderfs", "./binderfs" [pid 5339] <... mmap resumed>) = 0x20000000 [pid 5000] <... clone resumed>, child_tidptr=0x5555570865d0) = 5348 [pid 4998] <... unlink resumed>) = 0 [pid 5347] <... symlink resumed>) = 0 [pid 5347] memfd_create("syzkaller", 0 [pid 5339] ioctl(4, FS_IOC_GETVERSION [pid 4998] umount2("./27/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5347] <... memfd_create resumed>) = 3 [pid 5339] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5347] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5339] exit_group(0 [pid 5347] <... mmap resumed>) = 0x7faaa11e5000 [pid 5339] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5348 attached [pid 5348] chdir("./28") = 0 [pid 5348] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5348] setpgid(0, 0) = 0 [pid 5348] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5348] write(3, "1000", 4) = 4 [pid 5348] close(3) = 0 [pid 5348] symlink("/dev/binderfs", "./binderfs" [pid 5339] +++ exited with 0 +++ [pid 4995] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5339, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=11 /* 0.11 s */} --- [pid 5348] <... symlink resumed>) = 0 [pid 4995] umount2("./27", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4995] openat(AT_FDCWD, "./27", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [ 103.359015][ T5339] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 4995] fstat(3, [pid 5348] memfd_create("syzkaller", 0 [pid 4995] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5348] <... memfd_create resumed>) = 3 [pid 4995] getdents64(3, [pid 5348] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 4995] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 5348] <... mmap resumed>) = 0x7faaa11e5000 [pid 4995] umount2("./27/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4995] lstat("./27/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4995] unlink("./27/binderfs") = 0 [pid 4995] umount2("./27/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4996] <... umount2 resumed>) = 0 [pid 4996] umount2("./27/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4996] lstat("./27/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4996] umount2("./27/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4996] openat(AT_FDCWD, "./27/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 4996] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4996] getdents64(4, 0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4996] getdents64(4, 0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4996] close(4) = 0 [pid 4996] rmdir("./27/file0") = 0 [pid 4996] getdents64(3, 0x555557087620 /* 0 entries */, 32768) = 0 [pid 4996] close(3) = 0 [pid 4996] rmdir("./27") = 0 [pid 4996] mkdir("./28", 0777) = 0 [pid 4996] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 4996] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 4996] close(3) = 0 [pid 4996] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570865d0) = 5349 ./strace-static-x86_64: Process 5349 attached [pid 5349] chdir("./28") = 0 [pid 5349] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5349] setpgid(0, 0 [pid 5347] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5349] <... setpgid resumed>) = 0 [pid 5349] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5349] write(3, "1000", 4) = 4 [pid 5349] close(3) = 0 [pid 5349] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5349] memfd_create("syzkaller", 0 [pid 4997] <... umount2 resumed>) = 0 [pid 5349] <... memfd_create resumed>) = 3 [pid 5349] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7faaa11e5000 [pid 4998] <... umount2 resumed>) = 0 [pid 4998] umount2("./27/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4997] umount2("./27/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4997] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./27/file0", [pid 4997] lstat("./27/file0", [pid 4998] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] umount2("./27/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4997] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4997] umount2("./27/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] openat(AT_FDCWD, "./27/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 4997] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] fstat(4, [pid 4997] openat(AT_FDCWD, "./27/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4998] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4997] <... openat resumed>) = 4 [pid 4995] <... umount2 resumed>) = 0 [pid 4998] getdents64(4, [pid 4997] fstat(4, [pid 4998] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4997] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] getdents64(4, [pid 4997] getdents64(4, [pid 4998] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4997] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4998] close(4 [pid 4997] getdents64(4, [pid 4998] <... close resumed>) = 0 [pid 4997] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4998] rmdir("./27/file0" [pid 4997] close(4 [pid 5348] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 4998] <... rmdir resumed>) = 0 [pid 4997] <... close resumed>) = 0 [pid 4998] getdents64(3, [pid 4997] rmdir("./27/file0" [pid 4998] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 4997] <... rmdir resumed>) = 0 [pid 4998] close(3 [pid 4997] getdents64(3, [pid 5347] <... write resumed>) = 4194304 [pid 4998] <... close resumed>) = 0 [pid 4997] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 5347] munmap(0x7faaa11e5000, 4194304 [pid 4998] rmdir("./27" [pid 4997] close(3 [pid 4995] umount2("./27/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5347] <... munmap resumed>) = 0 [pid 4998] <... rmdir resumed>) = 0 [pid 5347] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4998] mkdir("./28", 0777 [pid 4997] <... close resumed>) = 0 [pid 5347] <... openat resumed>) = 4 [pid 4998] <... mkdir resumed>) = 0 [pid 4997] rmdir("./27" [pid 4995] lstat("./27/file0", [pid 5347] ioctl(4, LOOP_SET_FD, 3 [pid 4998] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4997] <... rmdir resumed>) = 0 [pid 4995] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4995] umount2("./27/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4995] openat(AT_FDCWD, "./27/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 4995] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4995] getdents64(4, 0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4995] getdents64(4, 0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4995] close(4) = 0 [pid 4995] rmdir("./27/file0") = 0 [pid 4998] <... openat resumed>) = 3 [pid 4997] mkdir("./28", 0777 [pid 4995] getdents64(3, [pid 4998] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 4997] <... mkdir resumed>) = 0 [pid 4995] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 4998] close(3 [pid 4997] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4998] <... close resumed>) = 0 [pid 4995] close(3) = 0 [pid 4995] rmdir("./27") = 0 [pid 4995] mkdir("./28", 0777) = 0 [pid 4995] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4998] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4997] <... openat resumed>) = 3 [pid 4995] <... openat resumed>) = 3 [pid 4997] ioctl(3, LOOP_CLR_FD [pid 4995] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 4995] close(3) = 0 [pid 4995] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570865d0) = 5351 [pid 4998] <... clone resumed>, child_tidptr=0x5555570865d0) = 5350 [pid 4997] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5347] <... ioctl resumed>) = 0 [pid 4997] close(3 [pid 5347] close(3 [pid 4997] <... close resumed>) = 0 [pid 5347] <... close resumed>) = 0 [pid 4997] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5347] mkdir("./file0", 0777./strace-static-x86_64: Process 5350 attached [pid 5350] chdir("./28" [pid 5347] <... mkdir resumed>) = 0 [pid 4997] <... clone resumed>, child_tidptr=0x5555570865d0) = 5352 [pid 5350] <... chdir resumed>) = 0 [pid 5347] mount("/dev/loop4", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5350] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5350] setpgid(0, 0) = 0 ./strace-static-x86_64: Process 5351 attached [pid 5350] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5351] chdir("./28" [pid 5350] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5352 attached [pid 5351] <... chdir resumed>) = 0 [pid 5350] write(3, "1000", 4 [pid 5352] chdir("./28" [pid 5351] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5350] <... write resumed>) = 4 [pid 5349] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5352] <... chdir resumed>) = 0 [pid 5350] close(3 [pid 5352] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5350] <... close resumed>) = 0 [pid 5352] <... prctl resumed>) = 0 [pid 5350] symlink("/dev/binderfs", "./binderfs" [pid 5352] setpgid(0, 0 [pid 5350] <... symlink resumed>) = 0 [pid 5352] <... setpgid resumed>) = 0 [pid 5351] <... prctl resumed>) = 0 [pid 5350] memfd_create("syzkaller", 0 [pid 5352] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5350] <... memfd_create resumed>) = 3 [pid 5352] <... openat resumed>) = 3 [pid 5350] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5352] write(3, "1000", 4 [pid 5351] setpgid(0, 0 [pid 5350] <... mmap resumed>) = 0x7faaa11e5000 [pid 5352] <... write resumed>) = 4 [pid 5351] <... setpgid resumed>) = 0 [pid 5352] close(3 [pid 5351] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5352] <... close resumed>) = 0 [pid 5351] <... openat resumed>) = 3 [pid 5352] symlink("/dev/binderfs", "./binderfs" [pid 5351] write(3, "1000", 4 [pid 5352] <... symlink resumed>) = 0 [pid 5351] <... write resumed>) = 4 [pid 5351] close(3 [pid 5352] memfd_create("syzkaller", 0 [pid 5351] <... close resumed>) = 0 [pid 5352] <... memfd_create resumed>) = 3 [pid 5351] symlink("/dev/binderfs", "./binderfs" [pid 5352] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5351] <... symlink resumed>) = 0 [pid 5352] <... mmap resumed>) = 0x7faaa11e5000 [pid 5351] memfd_create("syzkaller", 0) = 3 [pid 5351] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7faaa11e5000 [ 103.581810][ T5347] loop4: detected capacity change from 0 to 8192 [ 103.615593][ T5347] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5348] <... write resumed>) = 4194304 [pid 5348] munmap(0x7faaa11e5000, 4194304) = 0 [pid 5348] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 5348] ioctl(4, LOOP_SET_FD, 3 [pid 5352] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5351] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5349] <... write resumed>) = 4194304 [pid 5350] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5348] <... ioctl resumed>) = 0 [ 103.672799][ T5347] REISERFS (device loop4): found reiserfs format "3.5" with non-standard journal [ 103.710302][ T5347] REISERFS (device loop4): using ordered data mode [pid 5349] munmap(0x7faaa11e5000, 4194304) = 0 [pid 5349] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5349] ioctl(4, LOOP_SET_FD, 3 [pid 5348] close(3) = 0 [pid 5348] mkdir("./file0", 0777) = 0 [pid 5348] mount("/dev/loop5", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5349] <... ioctl resumed>) = 0 [pid 5349] close(3) = 0 [pid 5349] mkdir("./file0", 0777) = 0 [ 103.717110][ T5348] loop5: detected capacity change from 0 to 8192 [ 103.727736][ T5349] loop1: detected capacity change from 0 to 8192 [ 103.742923][ T5347] reiserfs: using flush barriers [ 103.752459][ T5348] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5349] mount("/dev/loop1", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5350] <... write resumed>) = 4194304 [pid 5350] munmap(0x7faaa11e5000, 4194304) = 0 [pid 5350] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 5350] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5350] close(3) = 0 [pid 5350] mkdir("./file0", 0777) = 0 [pid 5350] mount("/dev/loop3", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5352] <... write resumed>) = 4194304 [ 103.766294][ T5349] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 103.781470][ T5347] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 103.800527][ T5347] REISERFS (device loop4): checking transaction log (loop4) [ 103.807836][ T5350] loop3: detected capacity change from 0 to 8192 [ 103.814123][ T5348] REISERFS (device loop5): found reiserfs format "3.5" with non-standard journal [pid 5352] munmap(0x7faaa11e5000, 4194304) = 0 [pid 5352] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5352] ioctl(4, LOOP_SET_FD, 3 [pid 5347] <... mount resumed>) = 0 [pid 5351] <... write resumed>) = 4194304 [ 103.815828][ T5347] REISERFS (device loop4): Using tea hash to sort names [ 103.826140][ T5352] loop2: detected capacity change from 0 to 8192 [ 103.831366][ T5347] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 103.839164][ T5349] REISERFS (device loop1): found reiserfs format "3.5" with non-standard journal [ 103.846472][ T5348] REISERFS (device loop5): using ordered data mode [ 103.856817][ T5349] REISERFS (device loop1): using ordered data mode [ 103.865233][ T5348] reiserfs: using flush barriers [pid 5347] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5351] munmap(0x7faaa11e5000, 4194304 [pid 5347] <... openat resumed>) = 3 [pid 5351] <... munmap resumed>) = 0 [pid 5347] chdir("./file0") = 0 [pid 5347] ioctl(4, LOOP_CLR_FD) = 0 [pid 5347] close(4 [pid 5351] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5347] <... close resumed>) = 0 [ 103.868463][ T5350] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 103.874695][ T5348] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 103.886129][ T5350] REISERFS (device loop3): found reiserfs format "3.5" with non-standard journal [ 103.911616][ T5350] REISERFS (device loop3): using ordered data mode [ 103.918210][ T5350] reiserfs: using flush barriers [pid 5352] <... ioctl resumed>) = 0 [pid 5351] <... openat resumed>) = 4 [pid 5347] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5352] close(3) = 0 [pid 5352] mkdir("./file0", 0777) = 0 [pid 5347] <... openat resumed>) = 4 [pid 5352] mount("/dev/loop2", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5351] ioctl(4, LOOP_SET_FD, 3 [pid 5347] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0) = 0x20000000 [pid 5347] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5347] exit_group(0) = ? [pid 5347] +++ exited with 0 +++ [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5347, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [ 103.924313][ T5348] REISERFS (device loop5): checking transaction log (loop5) [ 103.929948][ T5351] loop0: detected capacity change from 0 to 8192 [ 103.932094][ T5349] reiserfs: using flush barriers [ 103.944612][ T5350] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 103.945293][ T5348] REISERFS (device loop5): Using tea hash to sort names [pid 4999] umount2("./29", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./29", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 4999] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] getdents64(3, 0x555557087620 /* 4 entries */, 32768) = 112 [pid 4999] umount2("./29/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] lstat("./29/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4999] unlink("./29/binderfs" [pid 5351] <... ioctl resumed>) = 0 [pid 5351] close(3) = 0 [pid 5351] mkdir("./file0", 0777 [pid 5350] <... mount resumed>) = 0 [pid 5348] <... mount resumed>) = 0 [pid 5348] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5348] chdir("./file0") = 0 [ 103.961076][ T5350] REISERFS (device loop3): checking transaction log (loop3) [ 103.968510][ T5349] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 103.976013][ T5350] REISERFS (device loop3): Using tea hash to sort names [ 104.000318][ T5350] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 104.005337][ T5348] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 5348] ioctl(4, LOOP_CLR_FD [pid 5351] <... mkdir resumed>) = 0 [pid 5350] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 4999] <... unlink resumed>) = 0 [pid 5351] mount("/dev/loop0", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 4999] umount2("./29/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5348] <... ioctl resumed>) = 0 [pid 5348] close(4) = 0 [pid 5348] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5350] <... openat resumed>) = 3 [pid 5349] <... mount resumed>) = 0 [pid 5348] <... openat resumed>) = 4 [pid 5349] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [ 104.010097][ T5349] REISERFS (device loop1): checking transaction log (loop1) [ 104.026822][ T5352] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 104.027184][ T5349] REISERFS (device loop1): Using tea hash to sort names [ 104.047699][ T5349] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 104.058513][ T5351] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5349] chdir("./file0") = 0 [pid 5349] ioctl(4, LOOP_CLR_FD) = 0 [pid 5349] close(4) = 0 [pid 5350] chdir("./file0" [pid 5349] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5348] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 5350] <... chdir resumed>) = 0 [pid 5349] <... openat resumed>) = 4 [pid 5350] ioctl(4, LOOP_CLR_FD [pid 5349] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 5348] <... mmap resumed>) = 0x20000000 [pid 5350] <... ioctl resumed>) = 0 [pid 5349] <... mmap resumed>) = 0x20000000 [pid 5348] ioctl(4, FS_IOC_GETVERSION [pid 5350] close(4 [pid 5349] ioctl(4, FS_IOC_GETVERSION [pid 5348] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5350] <... close resumed>) = 0 [pid 5349] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5348] exit_group(0 [pid 5350] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5349] exit_group(0 [pid 5348] <... exit_group resumed>) = ? [pid 5350] <... openat resumed>) = 4 [pid 5349] <... exit_group resumed>) = ? [pid 5350] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 5349] +++ exited with 0 +++ [pid 5348] +++ exited with 0 +++ [pid 5350] <... mmap resumed>) = 0x20000000 [pid 5350] ioctl(4, FS_IOC_GETVERSION [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5348, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 4996] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5349, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=16 /* 0.16 s */} --- [pid 5350] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5000] restart_syscall(<... resuming interrupted clone ...> [pid 4996] restart_syscall(<... resuming interrupted clone ...> [pid 5350] exit_group(0 [pid 5000] <... restart_syscall resumed>) = 0 [pid 4996] <... restart_syscall resumed>) = 0 [pid 5350] <... exit_group resumed>) = ? [pid 5000] umount2("./28", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4996] umount2("./28", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5350] +++ exited with 0 +++ [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4996] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./28", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5350, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- [pid 4996] openat(AT_FDCWD, "./28", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5000] <... openat resumed>) = 3 [pid 4996] <... openat resumed>) = 3 [pid 5000] fstat(3, [pid 4996] fstat(3, [pid 5000] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] umount2("./28", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4996] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] getdents64(3, [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4996] getdents64(3, [pid 5000] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 4998] openat(AT_FDCWD, "./28", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4996] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 5000] umount2("./28/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] <... openat resumed>) = 3 [pid 4996] umount2("./28/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 104.067417][ T5352] REISERFS (device loop2): found reiserfs format "3.5" with non-standard journal [pid 4998] fstat(3, [pid 4996] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./28/binderfs", [pid 4999] <... umount2 resumed>) = 0 [pid 4998] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4996] lstat("./28/binderfs", [pid 5000] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4998] getdents64(3, [pid 4996] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] unlink("./28/binderfs" [pid 4998] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 4996] unlink("./28/binderfs" [pid 5000] <... unlink resumed>) = 0 [pid 4998] umount2("./28/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4996] <... unlink resumed>) = 0 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] umount2("./28/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] lstat("./28/binderfs", [pid 4996] umount2("./28/file0", MNT_DETACH|UMOUNT_NOFOLLOW [ 104.135002][ T5351] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 104.145338][ T5351] REISERFS (device loop0): using ordered data mode [ 104.146047][ T5352] REISERFS (device loop2): using ordered data mode [ 104.152834][ T5351] reiserfs: using flush barriers [ 104.166756][ T5352] reiserfs: using flush barriers [pid 4999] umount2("./29/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] unlink("./28/binderfs" [pid 4999] lstat("./29/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] <... unlink resumed>) = 0 [pid 4999] umount2("./29/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] umount2("./28/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./29/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 4999] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] <... umount2 resumed>) = 0 [ 104.171754][ T5351] 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 [ 104.190273][ T5351] REISERFS (device loop0): checking transaction log (loop0) [ 104.197705][ T5352] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 104.215603][ T5352] REISERFS (device loop2): checking transaction log (loop2) [ 104.225850][ T5351] REISERFS (device loop0): Using tea hash to sort names [pid 4999] getdents64(4, 0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4999] getdents64(4, 0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4999] close(4) = 0 [pid 4999] rmdir("./29/file0") = 0 [pid 4999] getdents64(3, 0x555557087620 /* 0 entries */, 32768) = 0 [pid 4999] close(3) = 0 [pid 4999] rmdir("./29") = 0 [pid 4999] mkdir("./30", 0777) = 0 [pid 4999] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 4999] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 4999] close(3) = 0 [pid 4999] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5360 attached [pid 5352] <... mount resumed>) = 0 [pid 5351] <... mount resumed>) = 0 [pid 5000] umount2("./28/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5360] chdir("./30" [pid 5352] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5351] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] <... clone resumed>, child_tidptr=0x5555570865d0) = 5360 [pid 5360] <... chdir resumed>) = 0 [pid 5352] <... openat resumed>) = 3 [pid 5351] <... openat resumed>) = 3 [pid 5000] lstat("./28/file0", [pid 5360] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5352] chdir("./file0" [pid 5351] chdir("./file0" [pid 5360] <... prctl resumed>) = 0 [pid 5352] <... chdir resumed>) = 0 [pid 5351] <... chdir resumed>) = 0 [pid 5000] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5360] setpgid(0, 0 [pid 5352] ioctl(4, LOOP_CLR_FD [pid 5351] ioctl(4, LOOP_CLR_FD [pid 5000] umount2("./28/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5360] <... setpgid resumed>) = 0 [pid 5352] <... ioctl resumed>) = 0 [pid 5351] <... ioctl resumed>) = 0 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5360] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5352] close(4 [pid 5351] close(4 [pid 5000] openat(AT_FDCWD, "./28/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4998] <... umount2 resumed>) = 0 [pid 5360] <... openat resumed>) = 3 [pid 5352] <... close resumed>) = 0 [pid 5351] <... close resumed>) = 0 [pid 5360] write(3, "1000", 4 [pid 5352] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5351] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5000] <... openat resumed>) = 4 [pid 4998] umount2("./28/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5360] <... write resumed>) = 4 [pid 5352] <... openat resumed>) = 4 [pid 5351] <... openat resumed>) = 4 [pid 5000] fstat(4, [pid 5360] close(3 [pid 5352] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 5000] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5360] <... close resumed>) = 0 [pid 5000] getdents64(4, [pid 5360] symlink("/dev/binderfs", "./binderfs" [pid 5351] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 5000] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 5360] <... symlink resumed>) = 0 [pid 5000] getdents64(4, [pid 5351] <... mmap resumed>) = 0x20000000 [pid 5000] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 5360] memfd_create("syzkaller", 0 [pid 5000] close(4 [pid 5352] <... mmap resumed>) = 0x20000000 [pid 5000] <... close resumed>) = 0 [pid 5360] <... memfd_create resumed>) = 3 [pid 5352] ioctl(4, FS_IOC_GETVERSION [pid 5351] ioctl(4, FS_IOC_GETVERSION [pid 5000] rmdir("./28/file0" [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5360] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5352] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5000] <... rmdir resumed>) = 0 [pid 5360] <... mmap resumed>) = 0x7faaa11e5000 [pid 5000] getdents64(3, [pid 5351] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5000] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 5000] close(3 [pid 5352] exit_group(0 [pid 5351] exit_group(0 [pid 5000] <... close resumed>) = 0 [pid 4998] lstat("./28/file0", [pid 5352] <... exit_group resumed>) = ? [pid 5351] <... exit_group resumed>) = ? [pid 5000] rmdir("./28" [pid 5352] +++ exited with 0 +++ [pid 5000] <... rmdir resumed>) = 0 [pid 4997] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5352, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=8 /* 0.08 s */} --- [pid 5000] mkdir("./29", 0777 [pid 5351] +++ exited with 0 +++ [pid 5000] <... mkdir resumed>) = 0 [pid 4995] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5351, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- [pid 5000] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4998] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4997] umount2("./28", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4995] umount2("./28", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] <... openat resumed>) = 3 [pid 4998] umount2("./28/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4997] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4995] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] ioctl(3, LOOP_CLR_FD [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4997] openat(AT_FDCWD, "./28", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4995] openat(AT_FDCWD, "./28", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5000] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4998] openat(AT_FDCWD, "./28/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4997] <... openat resumed>) = 3 [pid 4995] <... openat resumed>) = 3 [pid 4998] <... openat resumed>) = 4 [pid 4997] fstat(3, [pid 4995] fstat(3, [pid 5000] close(3 [pid 4998] fstat(4, [pid 5000] <... close resumed>) = 0 [pid 4997] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4995] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4997] getdents64(3, [pid 4995] getdents64(3, [pid 4998] getdents64(4, [pid 4997] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 4995] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 4998] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4997] umount2("./28/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4995] umount2("./28/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] <... clone resumed>, child_tidptr=0x5555570865d0) = 5361 [pid 4998] getdents64(4, [pid 4997] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4997] lstat("./28/binderfs", [pid 4995] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] close(4) = 0 [pid 4997] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4995] lstat("./28/binderfs", [pid 4998] rmdir("./28/file0" [pid 4997] unlink("./28/binderfs" [pid 4995] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4997] <... unlink resumed>) = 0 [pid 4995] unlink("./28/binderfs" [pid 4997] umount2("./28/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] <... rmdir resumed>) = 0 [pid 4995] <... unlink resumed>) = 0 [pid 4995] umount2("./28/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] getdents64(3, 0x555557087620 /* 0 entries */, 32768) = 0 [pid 4998] close(3 [pid 4996] <... umount2 resumed>) = 0 [pid 4996] umount2("./28/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] <... close resumed>) = 0 [ 104.236942][ T5351] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 104.246089][ T5352] REISERFS (device loop2): Using tea hash to sort names [ 104.254070][ T5352] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 4998] rmdir("./28" [pid 4996] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4996] lstat("./28/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 ./strace-static-x86_64: Process 5361 attached [pid 4998] <... rmdir resumed>) = 0 [pid 4996] umount2("./28/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] mkdir("./29", 0777 [pid 4996] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4996] openat(AT_FDCWD, "./28/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 4998] <... mkdir resumed>) = 0 [pid 5361] chdir("./29") = 0 [pid 4996] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5361] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4998] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5361] setpgid(0, 0 [pid 4998] <... openat resumed>) = 3 [pid 4998] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 4998] close(3 [pid 4996] getdents64(4, [pid 5361] <... setpgid resumed>) = 0 [pid 5361] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4998] <... close resumed>) = 0 [pid 4998] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4996] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4998] <... clone resumed>, child_tidptr=0x5555570865d0) = 5362 [pid 4996] getdents64(4, 0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4996] close(4) = 0 [pid 4996] rmdir("./28/file0") = 0 [pid 5361] <... openat resumed>) = 3 [pid 5361] write(3, "1000", 4) = 4 [pid 4996] getdents64(3, [pid 5361] close(3 [pid 4996] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 5361] <... close resumed>) = 0 [pid 4996] close(3 [pid 5361] symlink("/dev/binderfs", "./binderfs" [pid 4996] <... close resumed>) = 0 [pid 5361] <... symlink resumed>) = 0 [pid 4996] rmdir("./28" [pid 5361] memfd_create("syzkaller", 0 [pid 4996] <... rmdir resumed>) = 0 [pid 5361] <... memfd_create resumed>) = 3 [pid 4996] mkdir("./29", 0777 [pid 5361] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 4996] <... mkdir resumed>) = 0 [pid 5361] <... mmap resumed>) = 0x7faaa11e5000 [pid 4996] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5360] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 4996] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5362 attached [pid 4996] ioctl(3, LOOP_CLR_FD [pid 5362] chdir("./29" [pid 4996] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5362] <... chdir resumed>) = 0 [pid 4996] close(3 [pid 5362] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4996] <... close resumed>) = 0 [pid 5362] <... prctl resumed>) = 0 [pid 4996] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5362] setpgid(0, 0) = 0 [pid 4996] <... clone resumed>, child_tidptr=0x5555570865d0) = 5363 [pid 5362] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5362] write(3, "1000", 4) = 4 [pid 5362] close(3) = 0 [pid 5362] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5362] memfd_create("syzkaller", 0) = 3 [pid 5362] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7faaa11e5000 ./strace-static-x86_64: Process 5363 attached [pid 5363] chdir("./29") = 0 [pid 5363] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5363] setpgid(0, 0) = 0 [pid 5363] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5363] write(3, "1000", 4) = 4 [pid 5363] close(3) = 0 [pid 5363] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5363] memfd_create("syzkaller", 0) = 3 [pid 5363] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7faaa11e5000 [pid 4995] <... umount2 resumed>) = 0 [pid 4995] umount2("./28/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4995] lstat("./28/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4995] umount2("./28/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4995] openat(AT_FDCWD, "./28/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 4995] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4995] getdents64(4, 0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4995] getdents64(4, 0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4995] close(4) = 0 [pid 4995] rmdir("./28/file0") = 0 [pid 4995] getdents64(3, 0x555557087620 /* 0 entries */, 32768) = 0 [pid 4995] close(3) = 0 [pid 4995] rmdir("./28") = 0 [pid 4995] mkdir("./29", 0777 [pid 5363] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5360] <... write resumed>) = 4194304 [pid 5362] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5361] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5360] munmap(0x7faaa11e5000, 4194304 [pid 4995] <... mkdir resumed>) = 0 [pid 4995] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 4995] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 4995] close(3) = 0 [pid 4995] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570865d0) = 5364 [pid 5360] <... munmap resumed>) = 0 [pid 4997] <... umount2 resumed>) = 0 [pid 5360] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5360] ioctl(4, LOOP_SET_FD, 3 [pid 4997] umount2("./28/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4997] lstat("./28/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4997] umount2("./28/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5364 attached [pid 4997] openat(AT_FDCWD, "./28/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5364] chdir("./29" [pid 4997] <... openat resumed>) = 4 [pid 5364] <... chdir resumed>) = 0 [pid 4997] fstat(4, [pid 5364] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4997] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4997] getdents64(4, 0x55555708f660 /* 2 entries */, 32768) = 48 [pid 5364] setpgid(0, 0 [pid 4997] getdents64(4, [pid 5364] <... setpgid resumed>) = 0 [pid 4997] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4997] close(4 [pid 5364] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4997] <... close resumed>) = 0 [pid 5364] <... openat resumed>) = 3 [pid 4997] rmdir("./28/file0" [pid 5364] write(3, "1000", 4 [pid 4997] <... rmdir resumed>) = 0 [pid 5364] <... write resumed>) = 4 [pid 4997] getdents64(3, [pid 5364] close(3 [pid 4997] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 5364] <... close resumed>) = 0 [pid 4997] close(3 [pid 5364] symlink("/dev/binderfs", "./binderfs" [pid 4997] <... close resumed>) = 0 [pid 5364] <... symlink resumed>) = 0 [pid 5360] <... ioctl resumed>) = 0 [pid 4997] rmdir("./28" [pid 5364] memfd_create("syzkaller", 0 [pid 5360] close(3 [pid 4997] <... rmdir resumed>) = 0 [pid 5364] <... memfd_create resumed>) = 3 [pid 5360] <... close resumed>) = 0 [pid 4997] mkdir("./29", 0777 [pid 5364] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5360] mkdir("./file0", 0777 [pid 4997] <... mkdir resumed>) = 0 [pid 5364] <... mmap resumed>) = 0x7faaa11e5000 [pid 5360] <... mkdir resumed>) = 0 [pid 4997] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 4997] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 4997] close(3) = 0 [pid 4997] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570865d0) = 5365 ./strace-static-x86_64: Process 5365 attached [pid 5365] chdir("./29") = 0 [pid 5365] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5365] setpgid(0, 0) = 0 [pid 5365] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5365] write(3, "1000", 4) = 4 [pid 5360] mount("/dev/loop4", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5365] close(3) = 0 [pid 5365] symlink("/dev/binderfs", "./binderfs") = 0 [ 104.466599][ T5360] loop4: detected capacity change from 0 to 8192 [pid 5365] memfd_create("syzkaller", 0) = 3 [pid 5365] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7faaa11e5000 [pid 5364] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5362] <... write resumed>) = 4194304 [pid 5361] <... write resumed>) = 4194304 [pid 5362] munmap(0x7faaa11e5000, 4194304 [pid 5361] munmap(0x7faaa11e5000, 4194304 [pid 5362] <... munmap resumed>) = 0 [pid 5361] <... munmap resumed>) = 0 [pid 5361] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [ 104.555875][ T5360] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 104.585387][ T5360] REISERFS (device loop4): found reiserfs format "3.5" with non-standard journal [ 104.594626][ T5360] REISERFS (device loop4): using ordered data mode [pid 5361] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5361] close(3) = 0 [pid 5361] mkdir("./file0", 0777 [pid 5363] <... write resumed>) = 4194304 [pid 5362] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5361] <... mkdir resumed>) = 0 [pid 5361] mount("/dev/loop5", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5362] <... openat resumed>) = 4 [pid 5363] munmap(0x7faaa11e5000, 4194304 [pid 5362] ioctl(4, LOOP_SET_FD, 3 [pid 5365] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5363] <... munmap resumed>) = 0 [pid 5363] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [ 104.606985][ T5361] loop5: detected capacity change from 0 to 8192 [ 104.616703][ T5360] reiserfs: using flush barriers [ 104.623208][ T5362] loop3: detected capacity change from 0 to 8192 [ 104.633530][ T5363] loop1: detected capacity change from 0 to 8192 [ 104.635641][ T5361] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5363] ioctl(4, LOOP_SET_FD, 3 [pid 5364] <... write resumed>) = 4194304 [pid 5363] <... ioctl resumed>) = 0 [pid 5362] <... ioctl resumed>) = 0 [pid 5364] munmap(0x7faaa11e5000, 4194304 [pid 5363] close(3 [pid 5362] close(3 [pid 5363] <... close resumed>) = 0 [pid 5362] <... close resumed>) = 0 [pid 5363] mkdir("./file0", 0777 [pid 5362] mkdir("./file0", 0777 [pid 5363] <... mkdir resumed>) = 0 [pid 5362] <... mkdir resumed>) = 0 [pid 5363] mount("/dev/loop1", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5362] mount("/dev/loop3", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5364] <... munmap resumed>) = 0 [pid 5364] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [ 104.655051][ T5360] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 104.659714][ T5361] REISERFS (device loop5): found reiserfs format "3.5" with non-standard journal [ 104.686153][ T5364] loop0: detected capacity change from 0 to 8192 [ 104.687643][ T5361] REISERFS (device loop5): using ordered data mode [pid 5364] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5364] close(3) = 0 [pid 5364] mkdir("./file0", 0777) = 0 [ 104.699479][ T5363] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 104.704871][ T5362] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 104.712487][ T5363] REISERFS (device loop1): found reiserfs format "3.5" with non-standard journal [ 104.735747][ T5363] REISERFS (device loop1): using ordered data mode [ 104.735885][ T5360] REISERFS (device loop4): checking transaction log (loop4) [ 104.743394][ T5361] reiserfs: using flush barriers [ 104.750368][ T5360] REISERFS (device loop4): Using tea hash to sort names [ 104.764952][ T5364] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 104.764998][ T5362] REISERFS (device loop3): found reiserfs format "3.5" with non-standard journal [ 104.787309][ T5362] REISERFS (device loop3): using ordered data mode [ 104.789722][ T5363] reiserfs: using flush barriers [ 104.793821][ T5362] reiserfs: using flush barriers [pid 5364] mount("/dev/loop0", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5360] <... mount resumed>) = 0 [pid 5360] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5365] <... write resumed>) = 4194304 [pid 5365] munmap(0x7faaa11e5000, 4194304) = 0 [pid 5365] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [ 104.796499][ T5360] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 104.799512][ T5362] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 104.804219][ T5364] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 104.814925][ T5361] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5365] ioctl(4, LOOP_SET_FD, 3 [pid 5360] <... openat resumed>) = 3 [pid 5360] chdir("./file0") = 0 [pid 5360] ioctl(4, LOOP_CLR_FD) = 0 [ 104.835483][ T5364] REISERFS (device loop0): using ordered data mode [ 104.852345][ T5365] loop2: detected capacity change from 0 to 8192 [ 104.855204][ T5364] reiserfs: using flush barriers [ 104.873393][ T5364] 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 [ 104.873861][ T5362] REISERFS (device loop3): checking transaction log (loop3) [ 104.890117][ T5364] REISERFS (device loop0): checking transaction log (loop0) [pid 5360] close(4 [pid 5365] <... ioctl resumed>) = 0 [pid 5365] close(3) = 0 [pid 5365] mkdir("./file0", 0777) = 0 [pid 5365] mount("/dev/loop2", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5364] <... mount resumed>) = 0 [pid 5360] <... close resumed>) = 0 [ 104.905415][ T5364] REISERFS (device loop0): Using tea hash to sort names [ 104.906025][ T5363] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 104.930193][ T5364] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 104.936868][ T5361] REISERFS (device loop5): checking transaction log (loop5) [ 104.941329][ T5363] REISERFS (device loop1): checking transaction log (loop1) [pid 5364] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5360] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5364] <... openat resumed>) = 3 [pid 5360] <... openat resumed>) = 4 [pid 5364] chdir("./file0" [pid 5362] <... mount resumed>) = 0 [ 104.947953][ T5365] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 104.955022][ T5362] REISERFS (device loop3): Using tea hash to sort names [ 104.968669][ T5361] REISERFS (device loop5): Using tea hash to sort names [ 104.975549][ T5362] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 104.982612][ T5365] REISERFS (device loop2): found reiserfs format "3.5" with non-standard journal [ 104.990605][ T5361] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 5360] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 5364] <... chdir resumed>) = 0 [pid 5362] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5361] <... mount resumed>) = 0 [pid 5360] <... mmap resumed>) = 0x20000000 [pid 5364] ioctl(4, LOOP_CLR_FD [pid 5360] ioctl(4, FS_IOC_GETVERSION [pid 5364] <... ioctl resumed>) = 0 [pid 5360] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5364] close(4 [pid 5360] exit_group(0 [pid 5364] <... close resumed>) = 0 [pid 5362] <... openat resumed>) = 3 [pid 5361] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5360] <... exit_group resumed>) = ? [pid 5362] chdir("./file0" [pid 5361] <... openat resumed>) = 3 [pid 5362] <... chdir resumed>) = 0 [pid 5361] chdir("./file0" [pid 5362] ioctl(4, LOOP_CLR_FD [pid 5361] <... chdir resumed>) = 0 [pid 5364] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5362] <... ioctl resumed>) = 0 [pid 5361] ioctl(4, LOOP_CLR_FD [pid 5360] +++ exited with 0 +++ [pid 5364] <... openat resumed>) = 4 [pid 5364] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5360, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=8 /* 0.08 s */} --- [pid 5364] <... mmap resumed>) = 0x20000000 [pid 4999] umount2("./30", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5364] ioctl(4, FS_IOC_GETVERSION [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5364] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 4999] openat(AT_FDCWD, "./30", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5364] exit_group(0 [pid 5362] close(4 [pid 5361] <... ioctl resumed>) = 0 [pid 4999] <... openat resumed>) = 3 [pid 5362] <... close resumed>) = 0 [pid 5361] close(4 [pid 4999] fstat(3, [pid 5364] <... exit_group resumed>) = ? [pid 5362] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5361] <... close resumed>) = 0 [pid 4999] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5364] +++ exited with 0 +++ [pid 4999] getdents64(3, [pid 5362] <... openat resumed>) = 4 [pid 5361] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4999] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 4995] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5364, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- [pid 5362] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 5361] <... openat resumed>) = 4 [pid 4999] umount2("./30/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4995] restart_syscall(<... resuming interrupted clone ...> [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4995] <... restart_syscall resumed>) = 0 [pid 4999] lstat("./30/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4999] unlink("./30/binderfs" [pid 4995] umount2("./29", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] <... unlink resumed>) = 0 [pid 4995] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] umount2("./30/file0", MNT_DETACH|UMOUNT_NOFOLLOW [ 105.005717][ T5363] REISERFS (device loop1): Using tea hash to sort names [ 105.008730][ T5365] REISERFS (device loop2): using ordered data mode [ 105.022212][ T5365] reiserfs: using flush barriers [ 105.029339][ T5365] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 4995] openat(AT_FDCWD, "./29", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 4995] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4995] getdents64(3, [pid 5362] <... mmap resumed>) = 0x20000000 [pid 5361] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 4995] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 5362] ioctl(4, FS_IOC_GETVERSION [pid 5361] <... mmap resumed>) = 0x20000000 [pid 4995] umount2("./29/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5362] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5361] ioctl(4, FS_IOC_GETVERSION [pid 4995] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4995] lstat("./29/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4995] unlink("./29/binderfs") = 0 [pid 4995] umount2("./29/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5363] <... mount resumed>) = 0 [pid 5363] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5363] chdir("./file0") = 0 [pid 5363] ioctl(4, LOOP_CLR_FD) = 0 [pid 5362] exit_group(0 [pid 5361] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5365] <... mount resumed>) = 0 [pid 5363] close(4 [pid 5362] <... exit_group resumed>) = ? [pid 5361] exit_group(0 [pid 4995] <... umount2 resumed>) = 0 [pid 5365] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5363] <... close resumed>) = 0 [pid 5365] <... openat resumed>) = 3 [pid 5363] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5362] +++ exited with 0 +++ [pid 5361] <... exit_group resumed>) = ? [pid 4999] <... umount2 resumed>) = 0 [pid 4995] umount2("./29/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5365] chdir("./file0" [pid 5363] <... openat resumed>) = 4 [pid 5361] +++ exited with 0 +++ [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5362, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- [pid 4995] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5365] <... chdir resumed>) = 0 [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5361, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=13 /* 0.13 s */} --- [pid 4999] umount2("./30/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5365] ioctl(4, LOOP_CLR_FD) = 0 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5365] close(4) = 0 [pid 4999] lstat("./30/file0", [pid 5363] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 4998] restart_syscall(<... resuming interrupted clone ...> [pid 4995] lstat("./29/file0", [pid 5365] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5000] umount2("./29", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] <... restart_syscall resumed>) = 0 [pid 5365] <... openat resumed>) = 4 [pid 5363] <... mmap resumed>) = 0x20000000 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4995] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5365] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 5363] ioctl(4, FS_IOC_GETVERSION [pid 5000] openat(AT_FDCWD, "./29", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5365] <... mmap resumed>) = 0x20000000 [pid 4999] umount2("./30/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4995] umount2("./29/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5365] ioctl(4, FS_IOC_GETVERSION [pid 5000] <... openat resumed>) = 3 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] umount2("./29", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5363] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5365] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5363] exit_group(0 [pid 5000] fstat(3, [pid 4999] openat(AT_FDCWD, "./30/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4995] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5365] exit_group(0 [pid 5363] <... exit_group resumed>) = ? [pid 5000] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] <... openat resumed>) = 4 [pid 4998] openat(AT_FDCWD, "./29", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4995] openat(AT_FDCWD, "./29/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5365] <... exit_group resumed>) = ? [pid 5000] getdents64(3, [pid 4999] fstat(4, [pid 5365] +++ exited with 0 +++ [pid 5000] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 4999] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] <... openat resumed>) = 3 [pid 4995] <... openat resumed>) = 4 [pid 5363] +++ exited with 0 +++ [pid 5000] umount2("./29/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] getdents64(4, [pid 4998] fstat(3, [pid 4997] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5365, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=13 /* 0.13 s */} --- [pid 4995] fstat(4, [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4998] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] lstat("./29/binderfs", [pid 4999] getdents64(4, 0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4998] getdents64(3, [pid 5000] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4999] close(4) = 0 [pid 4996] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5363, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- [pid 5000] unlink("./29/binderfs" [pid 4999] rmdir("./30/file0" [pid 4998] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 4997] umount2("./29", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] <... rmdir resumed>) = 0 [pid 4996] umount2("./29", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4995] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] <... unlink resumed>) = 0 [pid 4999] getdents64(3, 0x555557087620 /* 0 entries */, 32768) = 0 [pid 4998] umount2("./29/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] umount2("./29/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4997] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4996] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] close(3 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4997] openat(AT_FDCWD, "./29", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4996] openat(AT_FDCWD, "./29", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4995] getdents64(4, [pid 4999] <... close resumed>) = 0 [pid 4998] lstat("./29/binderfs", [pid 4999] rmdir("./30" [pid 4997] <... openat resumed>) = 3 [pid 4999] <... rmdir resumed>) = 0 [pid 4998] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4996] <... openat resumed>) = 3 [pid 4997] fstat(3, [pid 4995] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4999] mkdir("./31", 0777 [pid 4998] unlink("./29/binderfs" [pid 4996] fstat(3, [pid 4997] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] <... mkdir resumed>) = 0 [pid 4995] getdents64(4, [pid 4999] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 4999] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 4999] close(3) = 0 [pid 4999] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4998] <... unlink resumed>) = 0 [pid 4997] getdents64(3, [pid 4996] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] <... clone resumed>, child_tidptr=0x5555570865d0) = 5375 [pid 4997] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 4996] getdents64(3, [pid 4998] umount2("./29/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4997] umount2("./29/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4996] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 4997] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4996] umount2("./29/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4997] lstat("./29/binderfs", [pid 4996] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4997] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4996] lstat("./29/binderfs", [pid 4997] unlink("./29/binderfs" [pid 4996] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4997] <... unlink resumed>) = 0 [pid 4996] unlink("./29/binderfs") = 0 [pid 4997] umount2("./29/file0", MNT_DETACH|UMOUNT_NOFOLLOW [ 105.054663][ T5365] REISERFS (device loop2): checking transaction log (loop2) [ 105.063498][ T5363] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 105.073905][ T5365] REISERFS (device loop2): Using tea hash to sort names [ 105.081482][ T5365] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 4996] umount2("./29/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4995] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4995] close(4) = 0 [pid 4995] rmdir("./29/file0") = 0 [pid 4995] getdents64(3, 0x555557087620 /* 0 entries */, 32768) = 0 [pid 4995] close(3) = 0 [pid 4995] rmdir("./29") = 0 [pid 4995] mkdir("./30", 0777) = 0 [pid 4995] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 4995] ioctl(3, LOOP_CLR_FD) = 0 [pid 4995] close(3) = 0 [pid 4995] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570865d0) = 5376 ./strace-static-x86_64: Process 5375 attached [pid 5375] chdir("./31") = 0 ./strace-static-x86_64: Process 5376 attached [pid 5375] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5376] chdir("./30" [pid 5375] <... prctl resumed>) = 0 [pid 5375] setpgid(0, 0) = 0 [pid 5375] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5376] <... chdir resumed>) = 0 [pid 5376] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5376] setpgid(0, 0) = 0 [pid 5376] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5375] <... openat resumed>) = 3 [pid 5376] <... openat resumed>) = 3 [pid 5375] write(3, "1000", 4 [pid 5376] write(3, "1000", 4) = 4 [pid 5376] close(3) = 0 [pid 5375] <... write resumed>) = 4 [pid 5376] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5375] close(3) = 0 [pid 5375] symlink("/dev/binderfs", "./binderfs" [pid 5376] memfd_create("syzkaller", 0) = 3 [pid 5376] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7faaa11e5000 [pid 5375] <... symlink resumed>) = 0 [pid 5375] memfd_create("syzkaller", 0) = 3 [pid 5375] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7faaa11e5000 [pid 5000] <... umount2 resumed>) = 0 [pid 4998] <... umount2 resumed>) = 0 [pid 4998] umount2("./29/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./29/file0", [pid 5000] umount2("./29/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] lstat("./29/file0", [pid 4998] umount2("./29/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] umount2("./29/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] openat(AT_FDCWD, "./29/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] <... openat resumed>) = 4 [pid 5000] openat(AT_FDCWD, "./29/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4998] fstat(4, [pid 5000] <... openat resumed>) = 4 [pid 4998] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4997] <... umount2 resumed>) = 0 [pid 5000] fstat(4, [pid 4998] getdents64(4, [pid 4996] <... umount2 resumed>) = 0 [pid 4998] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4996] umount2("./29/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] getdents64(4, 0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4996] lstat("./29/file0", [pid 5000] getdents64(4, [pid 4996] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4997] umount2("./29/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] close(4 [pid 4997] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4996] umount2("./29/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4997] lstat("./29/file0", [pid 5000] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4998] <... close resumed>) = 0 [pid 5000] getdents64(4, [pid 4998] rmdir("./29/file0" [pid 4997] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4996] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 5000] close(4 [pid 4998] <... rmdir resumed>) = 0 [pid 4997] umount2("./29/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4996] openat(AT_FDCWD, "./29/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4998] getdents64(3, [pid 4997] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4996] <... openat resumed>) = 4 [pid 5000] <... close resumed>) = 0 [pid 5000] rmdir("./29/file0" [pid 4998] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 4997] openat(AT_FDCWD, "./29/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4996] fstat(4, [pid 4998] close(3 [pid 4997] <... openat resumed>) = 4 [pid 4996] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5376] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5375] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5000] <... rmdir resumed>) = 0 [pid 5000] getdents64(3, [pid 4998] <... close resumed>) = 0 [pid 4997] fstat(4, [pid 4996] getdents64(4, [pid 5000] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 4998] rmdir("./29" [pid 4997] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4996] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4997] getdents64(4, [pid 4996] getdents64(4, [pid 4997] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4996] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 5000] close(3 [pid 4998] <... rmdir resumed>) = 0 [pid 4997] getdents64(4, [pid 4996] close(4 [pid 4997] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4996] <... close resumed>) = 0 [pid 5000] <... close resumed>) = 0 [pid 4998] mkdir("./30", 0777 [pid 4997] close(4 [pid 4996] rmdir("./29/file0" [pid 5000] rmdir("./29" [pid 4997] <... close resumed>) = 0 [pid 4996] <... rmdir resumed>) = 0 [pid 4997] rmdir("./29/file0" [pid 4996] getdents64(3, [pid 4997] <... rmdir resumed>) = 0 [pid 4996] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 4997] getdents64(3, [pid 4996] close(3 [pid 4997] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 4996] <... close resumed>) = 0 [pid 4997] close(3 [pid 4996] rmdir("./29" [pid 4997] <... close resumed>) = 0 [pid 4996] <... rmdir resumed>) = 0 [pid 4997] rmdir("./29" [pid 4996] mkdir("./30", 0777 [pid 4997] <... rmdir resumed>) = 0 [pid 4996] <... mkdir resumed>) = 0 [pid 4997] mkdir("./30", 0777 [pid 5000] <... rmdir resumed>) = 0 [pid 4998] <... mkdir resumed>) = 0 [pid 4997] <... mkdir resumed>) = 0 [pid 4996] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5000] mkdir("./30", 0777 [pid 4998] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4997] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4996] <... openat resumed>) = 3 [pid 4997] <... openat resumed>) = 3 [pid 4996] ioctl(3, LOOP_CLR_FD [pid 4997] ioctl(3, LOOP_CLR_FD [pid 4996] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5000] <... mkdir resumed>) = 0 [pid 4998] <... openat resumed>) = 3 [pid 4997] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4996] close(3 [pid 5000] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4998] ioctl(3, LOOP_CLR_FD [pid 4997] close(3 [pid 4996] <... close resumed>) = 0 [pid 5000] <... openat resumed>) = 3 [pid 4997] <... close resumed>) = 0 [pid 4996] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5000] ioctl(3, LOOP_CLR_FD [pid 4998] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4997] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5000] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4998] close(3 [pid 4996] <... clone resumed>, child_tidptr=0x5555570865d0) = 5377 [pid 4997] <... clone resumed>, child_tidptr=0x5555570865d0) = 5378 [pid 5000] close(3 [pid 4998] <... close resumed>) = 0 [pid 5000] <... close resumed>) = 0 [pid 4998] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5000] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570865d0) = 5380 [pid 4998] <... clone resumed>, child_tidptr=0x5555570865d0) = 5379 ./strace-static-x86_64: Process 5378 attached [pid 5378] chdir("./30"./strace-static-x86_64: Process 5377 attached [pid 5377] chdir("./30" [pid 5378] <... chdir resumed>) = 0 [pid 5377] <... chdir resumed>) = 0 [pid 5378] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5378] setpgid(0, 0) = 0 ./strace-static-x86_64: Process 5380 attached ./strace-static-x86_64: Process 5379 attached [pid 5378] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5377] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5380] chdir("./30" [pid 5379] chdir("./30" [pid 5378] <... openat resumed>) = 3 [pid 5377] <... prctl resumed>) = 0 [pid 5378] write(3, "1000", 4 [pid 5380] <... chdir resumed>) = 0 [pid 5379] <... chdir resumed>) = 0 [pid 5378] <... write resumed>) = 4 [pid 5377] setpgid(0, 0 [pid 5380] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5379] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5378] close(3 [pid 5377] <... setpgid resumed>) = 0 [pid 5378] <... close resumed>) = 0 [pid 5378] symlink("/dev/binderfs", "./binderfs" [pid 5380] <... prctl resumed>) = 0 [pid 5379] <... prctl resumed>) = 0 [pid 5378] <... symlink resumed>) = 0 [pid 5377] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5378] memfd_create("syzkaller", 0) = 3 [pid 5377] <... openat resumed>) = 3 [pid 5379] setpgid(0, 0 [pid 5380] setpgid(0, 0 [pid 5378] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5377] write(3, "1000", 4 [pid 5380] <... setpgid resumed>) = 0 [pid 5379] <... setpgid resumed>) = 0 [pid 5378] <... mmap resumed>) = 0x7faaa11e5000 [pid 5377] <... write resumed>) = 4 [pid 5380] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5379] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5377] close(3 [pid 5380] <... openat resumed>) = 3 [pid 5380] write(3, "1000", 4 [pid 5379] <... openat resumed>) = 3 [pid 5377] <... close resumed>) = 0 [pid 5380] <... write resumed>) = 4 [pid 5379] write(3, "1000", 4 [pid 5377] symlink("/dev/binderfs", "./binderfs" [pid 5380] close(3 [pid 5379] <... write resumed>) = 4 [pid 5377] <... symlink resumed>) = 0 [pid 5380] <... close resumed>) = 0 [pid 5379] close(3 [pid 5380] symlink("/dev/binderfs", "./binderfs" [pid 5377] memfd_create("syzkaller", 0 [pid 5379] <... close resumed>) = 0 [pid 5380] <... symlink resumed>) = 0 [pid 5379] symlink("/dev/binderfs", "./binderfs" [pid 5377] <... memfd_create resumed>) = 3 [pid 5380] memfd_create("syzkaller", 0 [pid 5379] <... symlink resumed>) = 0 [pid 5377] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5380] <... memfd_create resumed>) = 3 [pid 5380] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5379] memfd_create("syzkaller", 0 [pid 5377] <... mmap resumed>) = 0x7faaa11e5000 [pid 5375] <... write resumed>) = 4194304 [pid 5380] <... mmap resumed>) = 0x7faaa11e5000 [pid 5379] <... memfd_create resumed>) = 3 [pid 5379] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7faaa11e5000 [pid 5375] munmap(0x7faaa11e5000, 4194304) = 0 [pid 5375] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5375] ioctl(4, LOOP_SET_FD, 3 [pid 5378] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5375] <... ioctl resumed>) = 0 [pid 5375] close(3) = 0 [pid 5375] mkdir("./file0", 0777) = 0 [pid 5375] mount("/dev/loop4", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5379] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5380] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5376] <... write resumed>) = 4194304 [ 105.359056][ T5375] loop4: detected capacity change from 0 to 8192 [ 105.392290][ T5375] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5376] munmap(0x7faaa11e5000, 4194304 [pid 5377] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5376] <... munmap resumed>) = 0 [pid 5376] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5376] ioctl(4, LOOP_SET_FD, 3 [pid 5379] <... write resumed>) = 4194304 [pid 5379] munmap(0x7faaa11e5000, 4194304) = 0 [pid 5379] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [ 105.423072][ T5375] REISERFS (device loop4): found reiserfs format "3.5" with non-standard journal [ 105.431576][ T5376] loop0: detected capacity change from 0 to 8192 [pid 5379] ioctl(4, LOOP_SET_FD, 3 [pid 5376] <... ioctl resumed>) = 0 [pid 5376] close(3) = 0 [pid 5380] <... write resumed>) = 4194304 [pid 5377] <... write resumed>) = 4194304 [pid 5376] mkdir("./file0", 0777 [pid 5380] munmap(0x7faaa11e5000, 4194304 [pid 5377] munmap(0x7faaa11e5000, 4194304 [pid 5376] <... mkdir resumed>) = 0 [pid 5380] <... munmap resumed>) = 0 [pid 5377] <... munmap resumed>) = 0 [ 105.474010][ T5379] loop3: detected capacity change from 0 to 8192 [ 105.474702][ T5375] REISERFS (device loop4): using ordered data mode [ 105.504750][ T5375] reiserfs: using flush barriers [pid 5376] mount("/dev/loop0", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5380] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5379] <... ioctl resumed>) = 0 [pid 5378] <... write resumed>) = 4194304 [pid 5377] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5379] close(3) = 0 [pid 5379] mkdir("./file0", 0777) = 0 [pid 5379] mount("/dev/loop3", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5380] <... openat resumed>) = 4 [pid 5377] <... openat resumed>) = 4 [ 105.523400][ T5375] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 105.540580][ T5376] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 105.546163][ T5379] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5380] ioctl(4, LOOP_SET_FD, 3 [pid 5378] munmap(0x7faaa11e5000, 4194304 [pid 5377] ioctl(4, LOOP_SET_FD, 3 [pid 5378] <... munmap resumed>) = 0 [pid 5377] <... ioctl resumed>) = 0 [pid 5377] close(3) = 0 [pid 5377] mkdir("./file0", 0777) = 0 [ 105.554260][ T5376] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 105.569038][ T5379] REISERFS (device loop3): found reiserfs format "3.5" with non-standard journal [ 105.576526][ T5380] loop5: detected capacity change from 0 to 8192 [ 105.586516][ T5379] REISERFS (device loop3): using ordered data mode [ 105.592719][ T5377] loop1: detected capacity change from 0 to 8192 [ 105.598018][ T5379] reiserfs: using flush barriers [pid 5377] mount("/dev/loop1", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5378] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5378] ioctl(4, LOOP_SET_FD, 3 [pid 5380] <... ioctl resumed>) = 0 [pid 5378] <... ioctl resumed>) = 0 [pid 5378] close(3) = 0 [pid 5378] mkdir("./file0", 0777) = 0 [pid 5378] mount("/dev/loop2", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5380] close(3) = 0 [ 105.610707][ T5379] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 105.611889][ T5375] REISERFS (device loop4): checking transaction log (loop4) [ 105.627211][ T5379] REISERFS (device loop3): checking transaction log (loop3) [ 105.638016][ T5378] loop2: detected capacity change from 0 to 8192 [ 105.642597][ T5379] REISERFS (device loop3): Using tea hash to sort names [ 105.651772][ T5376] REISERFS (device loop0): using ordered data mode [ 105.662170][ T5377] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5380] mkdir("./file0", 0777 [pid 5379] <... mount resumed>) = 0 [pid 5379] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5379] chdir("./file0") = 0 [pid 5379] ioctl(4, LOOP_CLR_FD) = 0 [pid 5379] close(4 [pid 5380] <... mkdir resumed>) = 0 [pid 5379] <... close resumed>) = 0 [pid 5379] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5379] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0) = 0x20000000 [pid 5380] mount("/dev/loop5", "./file0", "reiserfs", MS_NODEV|MS_SILENT|MS_I_VERSION, "" [pid 5379] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5379] exit_group(0) = ? [pid 5379] +++ exited with 0 +++ [ 105.662306][ T5379] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 105.676081][ T5377] REISERFS (device loop1): found reiserfs format "3.5" with non-standard journal [ 105.685346][ T5376] reiserfs: using flush barriers [ 105.700176][ T5378] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 105.714835][ T5375] REISERFS (device loop4): Using tea hash to sort names [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5379, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 4998] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 4998] umount2("./30", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./30", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 4998] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] getdents64(3, 0x555557087620 /* 4 entries */, 32768) = 112 [pid 4998] umount2("./30/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./30/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4998] unlink("./30/binderfs") = 0 [pid 4998] umount2("./30/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5375] <... mount resumed>) = 0 [pid 5375] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [ 105.722455][ T5375] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 105.732891][ T5377] REISERFS (device loop1): using ordered data mode [ 105.740243][ T5378] REISERFS (device loop2): found reiserfs format "3.5" with non-standard journal [ 105.740924][ T5380] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 105.752410][ T5377] reiserfs: using flush barriers [pid 5375] chdir("./file0") = 0 [pid 5375] ioctl(4, LOOP_CLR_FD) = 0 [pid 5375] close(4) = 0 [pid 5375] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5375] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0) = 0x20000000 [pid 5375] ioctl(4, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5375] exit_group(0) = ? [pid 5375] +++ exited with 0 +++ [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5375, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 4999] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 4999] umount2("./31", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./31", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 4999] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] getdents64(3, 0x555557087620 /* 4 entries */, 32768) = 112 [ 105.763236][ T5380] REISERFS (device loop5): found reiserfs format "3.5" with non-standard journal [ 105.769566][ T5376] 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 [ 105.776743][ T5378] REISERFS (device loop2): using ordered data mode [ 105.799366][ T5378] reiserfs: using flush barriers [ 105.807166][ T5376] REISERFS (device loop0): checking transaction log (loop0) [ 105.815029][ T5380] REISERFS (device loop5): using ordered data mode [pid 4999] umount2("./31/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] lstat("./31/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4999] unlink("./31/binderfs") = 0 [ 105.821908][ T5380] reiserfs: using flush barriers [ 105.824671][ T5377] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 105.828558][ T5376] REISERFS (device loop0): Using tea hash to sort names [ 105.850356][ T5378] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 4999] umount2("./31/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 4999] umount2("./31/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] lstat("./31/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] umount2("./31/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./31/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 4999] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] getdents64(4, 0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4999] getdents64(4, 0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4999] close(4) = 0 [pid 4999] rmdir("./31/file0") = 0 [pid 4999] getdents64(3, 0x555557087620 /* 0 entries */, 32768) = 0 [pid 4999] close(3) = 0 [pid 4999] rmdir("./31") = 0 [pid 4999] mkdir("./32", 0777) = 0 [ 105.867398][ T5380] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 105.890449][ T5378] REISERFS (device loop2): checking transaction log (loop2) [ 105.898793][ T5380] REISERFS (device loop5): checking transaction log (loop5) [ 105.898930][ T5377] REISERFS (device loop1): checking transaction log (loop1) [ 105.906484][ T5376] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 4999] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 4999] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 4999] close(3) = 0 [pid 4999] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5387 attached [pid 5378] <... mount resumed>) = 0 [pid 5376] <... mount resumed>) = 0 [pid 5387] chdir("./32" [pid 5378] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5376] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 4999] <... clone resumed>, child_tidptr=0x5555570865d0) = 5387 [pid 5376] <... openat resumed>) = 3 [pid 5387] <... chdir resumed>) = 0 [pid 5378] <... openat resumed>) = 3 [pid 5376] chdir("./file0" [pid 5387] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5378] chdir("./file0" [pid 5376] <... chdir resumed>) = 0 [pid 5387] <... prctl resumed>) = 0 [pid 5378] <... chdir resumed>) = 0 [pid 5376] ioctl(4, LOOP_CLR_FD [pid 5387] setpgid(0, 0 [pid 5378] ioctl(4, LOOP_CLR_FD [pid 5387] <... setpgid resumed>) = 0 [pid 5378] <... ioctl resumed>) = 0 [pid 5376] <... ioctl resumed>) = 0 [pid 4998] <... umount2 resumed>) = 0 [pid 5387] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5378] close(4 [pid 5376] close(4 [pid 4998] umount2("./30/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5387] <... openat resumed>) = 3 [pid 5387] write(3, "1000", 4 [pid 5378] <... close resumed>) = 0 [pid 5376] <... close resumed>) = 0 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 105.938071][ T5378] REISERFS (device loop2): Using tea hash to sort names [ 105.948985][ T5378] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 105.963584][ T5377] REISERFS (device loop1): Using tea hash to sort names [ 105.971117][ T5380] REISERFS (device loop5): Using tea hash to sort names [pid 5387] <... write resumed>) = 4 [pid 5378] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5376] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5387] close(3 [pid 5380] <... mount resumed>) = 0 [pid 4998] lstat("./30/file0", [pid 5378] <... openat resumed>) = 4 [pid 5376] <... openat resumed>) = 4 [pid 5387] <... close resumed>) = 0 [pid 5387] symlink("/dev/binderfs", "./binderfs" [pid 5378] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 5376] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 4998] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5380] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5387] <... symlink resumed>) = 0 [pid 4998] umount2("./30/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5376] <... mmap resumed>) = 0x20000000 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5387] memfd_create("syzkaller", 0 [pid 5378] <... mmap resumed>) = 0x20000000 [pid 5387] <... memfd_create resumed>) = 3 [pid 5380] <... openat resumed>) = 3 [pid 5378] ioctl(4, FS_IOC_GETVERSION [pid 5376] ioctl(4, FS_IOC_GETVERSION [pid 4998] openat(AT_FDCWD, "./30/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5387] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 4998] <... openat resumed>) = 4 [pid 5387] <... mmap resumed>) = 0x7faaa11e5000 [pid 5378] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5376] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5380] chdir("./file0" [pid 4998] fstat(4, [pid 5380] <... chdir resumed>) = 0 [pid 5378] exit_group(0 [pid 5376] exit_group(0 [pid 4998] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5380] ioctl(4, LOOP_CLR_FD [pid 5378] <... exit_group resumed>) = ? [pid 5377] <... mount resumed>) = 0 [pid 5376] <... exit_group resumed>) = ? [pid 4998] getdents64(4, [pid 5380] <... ioctl resumed>) = 0 [pid 5378] +++ exited with 0 +++ [pid 5380] close(4 [pid 5377] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5376] +++ exited with 0 +++ [pid 4998] <... getdents64 resumed>0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4997] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5378, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- [pid 5380] <... close resumed>) = 0 [pid 5377] <... openat resumed>) = 3 [pid 4998] getdents64(4, [pid 4995] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5376, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 5380] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5377] chdir("./file0" [pid 4998] <... getdents64 resumed>0x55555708f660 /* 0 entries */, 32768) = 0 [pid 5380] <... openat resumed>) = 4 [pid 4998] close(4 [pid 4997] umount2("./30", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4995] umount2("./30", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5380] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 5377] <... chdir resumed>) = 0 [pid 4998] <... close resumed>) = 0 [pid 4997] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4995] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4995] openat(AT_FDCWD, "./30", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5380] <... mmap resumed>) = 0x20000000 [pid 5377] ioctl(4, LOOP_CLR_FD [pid 4998] rmdir("./30/file0" [pid 4997] openat(AT_FDCWD, "./30", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4995] <... openat resumed>) = 3 [pid 5387] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5380] ioctl(4, FS_IOC_GETVERSION [pid 5377] <... ioctl resumed>) = 0 [pid 4998] <... rmdir resumed>) = 0 [pid 4997] <... openat resumed>) = 3 [pid 4995] fstat(3, [pid 5380] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 5377] close(4 [pid 4998] getdents64(3, [pid 4997] fstat(3, [pid 5380] exit_group(0 [pid 5377] <... close resumed>) = 0 [pid 4998] <... getdents64 resumed>0x555557087620 /* 0 entries */, 32768) = 0 [pid 4997] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4995] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5380] <... exit_group resumed>) = ? [pid 5377] openat(AT_FDCWD, "blkio.bfq.idle_time", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4998] close(3 [pid 4997] getdents64(3, [pid 5380] +++ exited with 0 +++ [pid 5377] <... openat resumed>) = 4 [ 105.982036][ T5380] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 105.997324][ T5377] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [pid 4998] <... close resumed>) = 0 [pid 4997] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 4995] getdents64(3, [pid 5377] mmap(0x20000000, 11755520, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5380, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=14 /* 0.14 s */} --- [pid 4998] rmdir("./30" [pid 4997] umount2("./30/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5377] <... mmap resumed>) = 0x20000000 [pid 4998] <... rmdir resumed>) = 0 [pid 4997] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4995] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 5377] ioctl(4, FS_IOC_GETVERSION [pid 4998] mkdir("./31", 0777 [pid 4997] lstat("./30/binderfs", [pid 4995] umount2("./30/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5377] <... ioctl resumed>, 0) = -1 EFAULT (Bad address) [pid 4998] <... mkdir resumed>) = 0 [pid 4997] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4995] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5377] exit_group(0 [pid 4998] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4997] unlink("./30/binderfs" [pid 4995] lstat("./30/binderfs", [pid 5377] <... exit_group resumed>) = ? [pid 4998] <... openat resumed>) = 3 [pid 4997] <... unlink resumed>) = 0 [pid 5377] +++ exited with 0 +++ [pid 5000] umount2("./30", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] ioctl(3, LOOP_CLR_FD [pid 4997] umount2("./30/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4995] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4995] unlink("./30/binderfs" [pid 5000] openat(AT_FDCWD, "./30", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4998] close(3 [pid 4996] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5377, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=13 /* 0.13 s */} --- [pid 5000] <... openat resumed>) = 3 [pid 4998] <... close resumed>) = 0 [pid 4996] umount2("./30", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4995] <... unlink resumed>) = 0 [pid 4998] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4996] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5388 attached [pid 5000] fstat(3, [pid 4996] openat(AT_FDCWD, "./30", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4995] umount2("./30/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] <... clone resumed>, child_tidptr=0x5555570865d0) = 5388 [pid 4996] <... openat resumed>) = 3 [pid 4996] fstat(3, [pid 5000] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4996] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4996] getdents64(3, 0x555557087620 /* 4 entries */, 32768) = 112 [pid 4996] umount2("./30/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] getdents64(3, [pid 4996] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4996] lstat("./30/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] <... getdents64 resumed>0x555557087620 /* 4 entries */, 32768) = 112 [pid 4996] unlink("./30/binderfs" [pid 5000] umount2("./30/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4996] <... unlink resumed>) = 0 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4996] umount2("./30/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] lstat("./30/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] unlink("./30/binderfs") = 0 [pid 5000] umount2("./30/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4997] <... umount2 resumed>) = 0 [pid 5388] chdir("./31") = 0 [pid 5388] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5388] setpgid(0, 0) = 0 [pid 5388] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5388] write(3, "1000", 4) = 4 [pid 5388] close(3) = 0 [pid 5388] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5388] memfd_create("syzkaller", 0) = 3 [pid 5388] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 4997] umount2("./30/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4997] lstat("./30/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4997] umount2("./30/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4997] openat(AT_FDCWD, "./30/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 4997] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4997] getdents64(4, 0x55555708f660 /* 2 entries */, 32768) = 48 [pid 4997] getdents64(4, 0x55555708f660 /* 0 entries */, 32768) = 0 [pid 4997] close(4) = 0 [pid 4997] rmdir("./30/file0" [pid 5388] <... mmap resumed>) = 0x7faaa11e5000 [pid 4997] <... rmdir resumed>) = 0 [pid 4997] getdents64(3, 0x555557087620 /* 0 entries */, 32768) = 0 [pid 4997] close(3) = 0 [pid 4997] rmdir("./30") = 0 [pid 4997] mkdir("./31", 0777) = 0 [pid 4997] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 4997] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 4997] close(3) = 0 [pid 4997] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570865d0) = 5389 ./strace-static-x86_64: Process 5389 attached [pid 5389] chdir("./31") = 0 [pid 5389] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5389] setpgid(0, 0) = 0 [pid 5389] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5389] write(3, "1000", 4) = 4 [pid 5389] close(3) = 0 [pid 5389] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5389] memfd_create("syzkaller", 0 [pid 5387] <... write resumed>) = 4194304 [pid 5389] <... memfd_create resumed>) = 3 [pid 5389] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7faaa11e5000 [pid 4996] <... umount2 resumed>) = 0 [pid 5387] munmap(0x7faaa11e5000, 4194304) = 0 [pid 5387] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4