./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1641782936 <...> Warning: Permanently added '10.128.1.72' (ECDSA) to the list of known hosts. execve("./syz-executor1641782936", ["./syz-executor1641782936"], 0x7ffedf7e2ad0 /* 10 vars */) = 0 brk(NULL) = 0x55555702f000 brk(0x55555702fc40) = 0x55555702fc40 arch_prctl(ARCH_SET_FS, 0x55555702f300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 set_tid_address(0x55555702f5d0) = 5068 set_robust_list(0x55555702f5e0, 24) = 0 rt_sigaction(SIGRTMIN, {sa_handler=0x7fa318274690, sa_mask=[], sa_flags=SA_RESTORER|SA_SIGINFO, sa_restorer=0x7fa318274d60}, NULL, 8) = 0 rt_sigaction(SIGRT_1, {sa_handler=0x7fa318274730, sa_mask=[], sa_flags=SA_RESTORER|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fa318274d60}, NULL, 8) = 0 rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1641782936", 4096) = 28 brk(0x555557050c40) = 0x555557050c40 brk(0x555557051000) = 0x555557051000 mprotect(0x7fa318337000, 16384, PROT_READ) = 0 mmap(0x1ffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffff000 mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000 mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x21000000 getpid() = 5068 mkdir("./syzkaller.Ibydap", 0700) = 0 chmod("./syzkaller.Ibydap", 0777) = 0 chdir("./syzkaller.Ibydap") = 0 mkdir("./0", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5069 ./strace-static-x86_64: Process 5069 attached [pid 5069] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5069] chdir("./0") = 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 [pid 5069] write(3, "1000", 4) = 4 [pid 5069] close(3) = 0 [pid 5069] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5069] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5069] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5069] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5069] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5071], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5071 [pid 5069] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5069] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5071 attached [pid 5071] set_robust_list(0x7fa3182639e0, 24) = 0 [pid 5071] memfd_create("syzkaller", 0) = 3 [pid 5071] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [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"..., 524288) = 524288 [pid 5071] munmap(0x7fa30fe43000, 524288) = 0 [pid 5071] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5071] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5071] close(3) = 0 [pid 5071] mkdir("./file0", 0777) = 0 [ 52.339744][ T5071] loop0: detected capacity change from 0 to 1024 [ 52.349362][ T5071] ======================================================= [ 52.349362][ T5071] WARNING: The mand mount option has been deprecated and [ 52.349362][ T5071] and is ignored by this kernel. Remove the mand [ 52.349362][ T5071] option from the mount to silence this warning. [ 52.349362][ T5071] ======================================================= [pid 5071] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5071] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5071] chdir("./file0") = 0 [pid 5071] ioctl(4, LOOP_CLR_FD) = 0 [pid 5071] close(4) = 0 [pid 5071] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5069] <... futex resumed>) = 0 [pid 5069] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5069] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5071] <... futex resumed>) = 1 [ 52.387491][ T5071] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 52.398214][ T5071] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 52.411356][ T5071] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5071] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 4 [pid 5071] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5071] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5069] <... futex resumed>) = 0 [pid 5069] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5069] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5071] <... futex resumed>) = 0 [pid 5071] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = 5 [pid 5071] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5069] <... futex resumed>) = 0 [pid 5069] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5069] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5071] openat(-1, "/proc/self/exe", O_RDONLY) = 6 [pid 5071] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5069] <... futex resumed>) = 0 [pid 5069] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5069] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5071] <... futex resumed>) = 1 [pid 5071] sendfile(5, 6, NULL, 140737974943952) = 65536 [pid 5071] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5069] <... futex resumed>) = 0 [pid 5069] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5071] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0 [pid 5069] <... futex resumed>) = 0 [ 52.430216][ T27] audit: type=1800 audit(1672320152.205:2): pid=5071 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor164" name="file1" dev="loop0" ino=839 res=0 errno=0 [ 52.454373][ T27] audit: type=1800 audit(1672320152.235:3): pid=5071 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor164" name="bus" dev="loop0" ino=861 res=0 errno=0 [pid 5069] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5071] <... pwritev2 resumed>) = -1 ENOSPC (No space left on device) [pid 5071] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5069] <... futex resumed>) = 0 [pid 5069] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5069] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5071] <... futex resumed>) = 1 [pid 5071] ftruncate(4, 31) = 0 [pid 5071] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5069] <... futex resumed>) = 0 [pid 5071] <... futex resumed>) = 1 [pid 5069] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5071] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [pid 5069] <... futex resumed>) = 0 [pid 5069] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5071] <... open resumed>) = 7 [pid 5071] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5069] <... futex resumed>) = 0 [pid 5069] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5069] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5071] <... futex resumed>) = 1 [pid 5071] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = 20480 [pid 5071] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5069] <... futex resumed>) = 0 [pid 5069] exit_group(0 [pid 5071] <... futex resumed>) = 1 [pid 5069] <... exit_group resumed>) = ? [pid 5071] +++ exited with 0 +++ [pid 5069] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5069, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- umount2("./0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./0/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./0/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./0/binderfs") = 0 umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./0/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./0/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./0") = 0 mkdir("./1", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [ 52.536338][ T27] audit: type=1800 audit(1672320152.315:4): pid=5071 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor164" name="file1" dev="loop0" ino=839 res=0 errno=0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5072 ./strace-static-x86_64: Process 5072 attached [pid 5072] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5072] chdir("./1") = 0 [pid 5072] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5072] setpgid(0, 0) = 0 [pid 5072] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5072] write(3, "1000", 4) = 4 [pid 5072] close(3) = 0 [pid 5072] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5072] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5072] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5072] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5072] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5073], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5073 [pid 5072] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5072] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5073 attached [pid 5073] set_robust_list(0x7fa3182639e0, 24) = 0 [pid 5073] memfd_create("syzkaller", 0) = 3 [pid 5073] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [pid 5073] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5073] munmap(0x7fa30fe43000, 524288) = 0 [pid 5073] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5073] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5073] close(3) = 0 [pid 5073] mkdir("./file0", 0777) = 0 [pid 5073] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5073] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5073] chdir("./file0") = 0 [pid 5073] ioctl(4, LOOP_CLR_FD) = 0 [pid 5073] close(4) = 0 [pid 5073] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5072] <... futex resumed>) = 0 [pid 5073] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5072] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5073] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5072] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [ 52.616672][ T5073] loop0: detected capacity change from 0 to 1024 [ 52.627666][ T5073] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 52.637939][ T5073] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 52.650199][ T5073] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5073] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 4 [pid 5073] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5072] <... futex resumed>) = 0 [pid 5073] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000 [pid 5072] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5072] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5073] <... open resumed>) = 5 [pid 5073] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5072] <... futex resumed>) = 0 [pid 5073] openat(-1, "/proc/self/exe", O_RDONLY [pid 5072] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5073] <... openat resumed>) = 6 [pid 5072] <... futex resumed>) = 0 [pid 5073] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5072] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5073] <... futex resumed>) = 0 [pid 5072] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5073] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5072] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5073] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5072] <... futex resumed>) = 0 [pid 5073] sendfile(5, 6, NULL, 140737974943952 [pid 5072] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5073] <... sendfile resumed>) = 65536 [pid 5073] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5072] <... futex resumed>) = 0 [pid 5072] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5072] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5073] <... futex resumed>) = 1 [pid 5073] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = -1 ENOSPC (No space left on device) [pid 5073] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5072] <... futex resumed>) = 0 [pid 5073] <... futex resumed>) = 1 [pid 5072] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5072] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5073] ftruncate(4, 31) = 0 [pid 5073] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5072] <... futex resumed>) = 0 [ 52.671398][ T27] audit: type=1800 audit(1672320152.445:5): pid=5073 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor164" name="file1" dev="loop0" ino=839 res=0 errno=0 [ 52.692930][ T27] audit: type=1800 audit(1672320152.445:6): pid=5073 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor164" name="bus" dev="loop0" ino=861 res=0 errno=0 [pid 5073] <... futex resumed>) = 1 [pid 5072] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5073] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 7 [pid 5072] <... futex resumed>) = 0 [pid 5072] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5073] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5072] <... futex resumed>) = 0 [pid 5073] <... futex resumed>) = 1 [pid 5072] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5073] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0 [pid 5072] <... futex resumed>) = 0 [pid 5072] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5073] <... pwritev2 resumed>) = 20480 [pid 5073] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5073] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5072] <... futex resumed>) = 0 [pid 5072] exit_group(0) = ? [pid 5073] <... futex resumed>) = ? [pid 5073] +++ exited with 0 +++ [pid 5072] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5072, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./1/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./1/binderfs") = 0 umount2("./1/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./1/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./1/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./1/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1") = 0 mkdir("./2", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5074 ./strace-static-x86_64: Process 5074 attached [pid 5074] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5074] chdir("./2") = 0 [ 52.757157][ T27] audit: type=1800 audit(1672320152.535:7): pid=5073 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor164" name="file1" dev="loop0" ino=839 res=0 errno=0 [pid 5074] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5074] setpgid(0, 0) = 0 [pid 5074] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5074] write(3, "1000", 4) = 4 [pid 5074] close(3) = 0 [pid 5074] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5074] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5074] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5074] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5074] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5075 attached , parent_tid=[5075], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5075 [pid 5075] set_robust_list(0x7fa3182639e0, 24 [pid 5074] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5075] <... set_robust_list resumed>) = 0 [pid 5074] <... futex resumed>) = 0 [pid 5074] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5075] memfd_create("syzkaller", 0) = 3 [pid 5075] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [pid 5075] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5075] munmap(0x7fa30fe43000, 524288) = 0 [pid 5075] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5075] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5075] close(3) = 0 [pid 5075] mkdir("./file0", 0777) = 0 [pid 5075] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5075] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5075] chdir("./file0") = 0 [pid 5075] ioctl(4, LOOP_CLR_FD) = 0 [pid 5075] close(4) = 0 [pid 5075] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [ 52.840164][ T5075] loop0: detected capacity change from 0 to 1024 [ 52.850185][ T5075] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 52.861055][ T5075] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 52.873007][ T5075] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5075] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5074] <... futex resumed>) = 0 [pid 5074] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5074] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5075] <... futex resumed>) = 0 [pid 5075] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 4 [pid 5075] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5074] <... futex resumed>) = 0 [pid 5074] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5074] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5075] <... futex resumed>) = 1 [pid 5075] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = 5 [pid 5075] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5074] <... futex resumed>) = 0 [pid 5074] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5074] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5075] <... futex resumed>) = 1 [pid 5075] openat(-1, "/proc/self/exe", O_RDONLY) = 6 [pid 5075] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5074] <... futex resumed>) = 0 [pid 5074] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5074] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5075] <... futex resumed>) = 1 [pid 5075] sendfile(5, 6, NULL, 140737974943952 [pid 5074] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5074] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 5075] <... sendfile resumed>) = 65536 [pid 5075] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5075] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5074] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5075] <... futex resumed>) = 0 [pid 5075] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0 [pid 5074] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5075] <... pwritev2 resumed>) = -1 ENOSPC (No space left on device) [pid 5075] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5074] <... futex resumed>) = 0 [pid 5074] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5074] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5075] ftruncate(4, 31) = 0 [ 52.890651][ T27] audit: type=1800 audit(1672320152.665:8): pid=5075 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor164" name="file1" dev="loop0" ino=839 res=0 errno=0 [ 52.915073][ T27] audit: type=1800 audit(1672320152.665:9): pid=5075 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor164" name="bus" dev="loop0" ino=861 res=0 errno=0 [pid 5075] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5074] <... futex resumed>) = 0 [pid 5074] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5074] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5075] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 7 [pid 5075] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5074] <... futex resumed>) = 0 [pid 5075] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 5074] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5075] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0 [pid 5074] <... futex resumed>) = 0 [pid 5074] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5075] <... pwritev2 resumed>) = 20480 [pid 5075] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5074] <... futex resumed>) = 0 [pid 5074] exit_group(0) = ? [pid 5075] +++ exited with 0 +++ [pid 5074] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5074, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- umount2("./2", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./2/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./2/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./2/binderfs") = 0 umount2("./2/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./2/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./2/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./2/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./2/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./2/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./2") = 0 mkdir("./3", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [ 52.972816][ T27] audit: type=1800 audit(1672320152.755:10): pid=5075 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor164" name="file1" dev="loop0" ino=839 res=0 errno=0 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5076 ./strace-static-x86_64: Process 5076 attached [pid 5076] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5076] chdir("./3") = 0 [pid 5076] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5076] setpgid(0, 0) = 0 [pid 5076] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5076] write(3, "1000", 4) = 4 [pid 5076] close(3) = 0 [pid 5076] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5076] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5076] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5076] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5076] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5077 attached [pid 5077] set_robust_list(0x7fa3182639e0, 24 [pid 5076] <... clone resumed>, parent_tid=[5077], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5077 [pid 5077] <... set_robust_list resumed>) = 0 [pid 5077] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5076] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5077] <... futex resumed>) = 0 [pid 5077] memfd_create("syzkaller", 0 [pid 5076] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5077] <... memfd_create resumed>) = 3 [pid 5077] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [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"..., 524288) = 524288 [pid 5077] munmap(0x7fa30fe43000, 524288) = 0 [pid 5077] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5077] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5077] close(3) = 0 [pid 5077] mkdir("./file0", 0777) = 0 [pid 5077] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5077] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5077] chdir("./file0") = 0 [pid 5077] ioctl(4, LOOP_CLR_FD) = 0 [pid 5077] close(4) = 0 [pid 5077] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5077] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5076] <... futex resumed>) = 0 [pid 5076] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] <... futex resumed>) = 0 [pid 5076] <... futex resumed>) = 1 [ 53.074407][ T5077] loop0: detected capacity change from 0 to 1024 [ 53.083696][ T5077] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 53.093919][ T5077] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 53.106692][ T5077] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5077] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 4 [pid 5076] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5077] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5077] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5076] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5076] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] <... futex resumed>) = 0 [pid 5076] <... futex resumed>) = 1 [pid 5077] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000 [pid 5076] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5077] <... open resumed>) = 5 [pid 5077] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5076] <... futex resumed>) = 0 [pid 5077] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5076] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5076] <... futex resumed>) = 0 [pid 5077] openat(-1, "/proc/self/exe", O_RDONLY [pid 5076] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5077] <... openat resumed>) = 6 [pid 5077] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5076] <... futex resumed>) = 0 [pid 5077] sendfile(5, 6, NULL, 140737974943952 [pid 5076] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5076] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5077] <... sendfile resumed>) = 65536 [pid 5077] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5077] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5076] <... futex resumed>) = 0 [pid 5076] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5077] <... futex resumed>) = 0 [pid 5077] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0 [ 53.124571][ T27] audit: type=1800 audit(1672320152.905:11): pid=5077 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor164" name="file1" dev="loop0" ino=839 res=0 errno=0 [pid 5076] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5077] <... pwritev2 resumed>) = -1 ENOSPC (No space left on device) [pid 5077] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5076] <... futex resumed>) = 0 [pid 5076] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5076] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5077] ftruncate(4, 31) = 0 [pid 5077] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5076] <... futex resumed>) = 0 [pid 5076] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5076] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5077] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 7 [pid 5077] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5076] <... futex resumed>) = 0 [pid 5076] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5076] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5077] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = 20480 [pid 5077] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5076] <... futex resumed>) = 0 [pid 5076] exit_group(0) = ? [pid 5077] +++ exited with 0 +++ [pid 5076] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5076, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} --- umount2("./3", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./3/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./3/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./3/binderfs") = 0 umount2("./3/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./3/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./3/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./3/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./3/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./3/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./3") = 0 mkdir("./4", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5078 ./strace-static-x86_64: Process 5078 attached [pid 5078] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5078] chdir("./4") = 0 [pid 5078] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5078] setpgid(0, 0) = 0 [pid 5078] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5078] write(3, "1000", 4) = 4 [pid 5078] close(3) = 0 [pid 5078] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5078] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5078] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5078] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5078] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5079 attached , parent_tid=[5079], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5079 [pid 5078] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5078] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5079] set_robust_list(0x7fa3182639e0, 24) = 0 [pid 5079] memfd_create("syzkaller", 0) = 3 [pid 5079] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [pid 5079] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5079] munmap(0x7fa30fe43000, 524288) = 0 [pid 5079] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5079] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5079] close(3) = 0 [pid 5079] mkdir("./file0", 0777) = 0 [pid 5079] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5079] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5079] chdir("./file0") = 0 [pid 5079] ioctl(4, LOOP_CLR_FD) = 0 [pid 5079] close(4) = 0 [pid 5079] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5079] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5078] <... futex resumed>) = 0 [pid 5078] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5078] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5079] <... futex resumed>) = 0 [pid 5079] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 4 [pid 5079] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] <... futex resumed>) = 0 [pid 5079] <... futex resumed>) = 1 [pid 5078] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5079] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000 [pid 5078] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5079] <... open resumed>) = 5 [pid 5079] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5078] <... futex resumed>) = 0 [pid 5079] openat(-1, "/proc/self/exe", O_RDONLY [pid 5078] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] <... openat resumed>) = 6 [pid 5078] <... futex resumed>) = 0 [pid 5079] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5079] <... futex resumed>) = 0 [pid 5078] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5079] sendfile(5, 6, NULL, 140737974943952 [pid 5078] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 53.279570][ T5079] loop0: detected capacity change from 0 to 1024 [ 53.290250][ T5079] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 53.300588][ T5079] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 53.313426][ T5079] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5078] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5079] <... sendfile resumed>) = 65536 [pid 5079] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5078] <... futex resumed>) = 0 [pid 5079] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0 [pid 5078] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5078] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5079] <... pwritev2 resumed>) = -1 ENOSPC (No space left on device) [pid 5079] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] <... futex resumed>) = 0 [pid 5079] <... futex resumed>) = 1 [pid 5079] ftruncate(4, 31 [pid 5078] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5079] <... ftruncate resumed>) = 0 [pid 5078] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5079] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5078] <... futex resumed>) = 0 [pid 5078] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5078] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5079] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 7 [pid 5079] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5078] <... futex resumed>) = 0 [pid 5078] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5078] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5079] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = 20480 [pid 5079] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5078] <... futex resumed>) = 0 [pid 5078] exit_group(0) = ? [pid 5079] +++ exited with 0 +++ [pid 5078] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5078, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./4", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./4/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./4/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./4/binderfs") = 0 umount2("./4/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./4/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./4/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./4/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./4/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./4/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./4") = 0 mkdir("./5", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5080 ./strace-static-x86_64: Process 5080 attached [pid 5080] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5080] chdir("./5") = 0 [pid 5080] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5080] setpgid(0, 0) = 0 [pid 5080] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5080] write(3, "1000", 4) = 4 [pid 5080] close(3) = 0 [pid 5080] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5080] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5080] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5080] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5080] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5081], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5081 [pid 5080] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5080] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5081 attached [pid 5081] set_robust_list(0x7fa3182639e0, 24) = 0 [pid 5081] memfd_create("syzkaller", 0) = 3 [pid 5081] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [pid 5081] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5081] munmap(0x7fa30fe43000, 524288) = 0 [pid 5081] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5081] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5081] close(3) = 0 [pid 5081] mkdir("./file0", 0777) = 0 [pid 5081] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5081] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5081] chdir("./file0") = 0 [pid 5081] ioctl(4, LOOP_CLR_FD) = 0 [pid 5081] close(4) = 0 [pid 5081] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5080] <... futex resumed>) = 0 [pid 5080] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5080] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5081] <... futex resumed>) = 1 [pid 5081] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 4 [pid 5081] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5080] <... futex resumed>) = 0 [pid 5080] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5080] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5081] <... futex resumed>) = 1 [pid 5081] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = 5 [pid 5081] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5080] <... futex resumed>) = 0 [pid 5080] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5080] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5081] <... futex resumed>) = 1 [pid 5081] openat(-1, "/proc/self/exe", O_RDONLY) = 6 [pid 5081] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5080] <... futex resumed>) = 0 [pid 5080] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5080] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5081] <... futex resumed>) = 1 [ 53.481276][ T5081] loop0: detected capacity change from 0 to 1024 [ 53.491074][ T5081] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 53.501448][ T5081] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 53.513451][ T5081] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5081] sendfile(5, 6, NULL, 140737974943952) = 65536 [pid 5081] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5080] <... futex resumed>) = 0 [pid 5080] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5080] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5081] <... futex resumed>) = 1 [pid 5081] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = -1 ENOSPC (No space left on device) [pid 5081] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5080] <... futex resumed>) = 0 [pid 5080] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5080] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5081] <... futex resumed>) = 1 [pid 5081] ftruncate(4, 31) = 0 [pid 5081] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5080] <... futex resumed>) = 0 [pid 5080] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5080] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5081] <... futex resumed>) = 1 [pid 5081] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 7 [pid 5081] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5080] <... futex resumed>) = 0 [pid 5080] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5080] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5081] <... futex resumed>) = 1 [pid 5081] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = 20480 [pid 5081] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5080] <... futex resumed>) = 0 [pid 5080] exit_group(0) = ? [pid 5081] <... futex resumed>) = ? [pid 5081] +++ exited with 0 +++ [pid 5080] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5080, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./5", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./5/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./5/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./5/binderfs") = 0 umount2("./5/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./5/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./5/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./5/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./5/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./5/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./5") = 0 mkdir("./6", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5082 attached , child_tidptr=0x55555702f5d0) = 5082 [pid 5082] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5082] chdir("./6") = 0 [pid 5082] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5082] setpgid(0, 0) = 0 [pid 5082] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5082] write(3, "1000", 4) = 4 [pid 5082] close(3) = 0 [pid 5082] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5082] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5082] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5082] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5082] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5083 attached , parent_tid=[5083], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5083 [pid 5083] set_robust_list(0x7fa3182639e0, 24) = 0 [pid 5083] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5082] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5083] <... futex resumed>) = 0 [pid 5082] <... futex resumed>) = 1 [pid 5083] memfd_create("syzkaller", 0 [pid 5082] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5083] <... memfd_create resumed>) = 3 [pid 5083] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [pid 5083] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5083] munmap(0x7fa30fe43000, 524288) = 0 [pid 5083] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5083] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5083] close(3) = 0 [pid 5083] mkdir("./file0", 0777) = 0 [pid 5083] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5083] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5083] chdir("./file0") = 0 [pid 5083] ioctl(4, LOOP_CLR_FD) = 0 [pid 5083] close(4) = 0 [pid 5083] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5083] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5082] <... futex resumed>) = 0 [pid 5082] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5082] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5083] <... futex resumed>) = 0 [pid 5083] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 4 [pid 5083] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5082] <... futex resumed>) = 0 [pid 5082] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5082] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5083] <... futex resumed>) = 1 [pid 5083] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = 5 [pid 5083] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5082] <... futex resumed>) = 0 [pid 5082] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5082] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5083] <... futex resumed>) = 1 [pid 5083] openat(-1, "/proc/self/exe", O_RDONLY) = 6 [pid 5083] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5082] <... futex resumed>) = 0 [pid 5082] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5082] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5083] <... futex resumed>) = 1 [ 53.667023][ T5083] loop0: detected capacity change from 0 to 1024 [ 53.676762][ T5083] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 53.687406][ T5083] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 53.699732][ T5083] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5083] sendfile(5, 6, NULL, 140737974943952) = 65536 [pid 5083] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5082] <... futex resumed>) = 0 [pid 5083] <... futex resumed>) = 1 [pid 5083] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0 [pid 5082] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5082] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5083] <... pwritev2 resumed>) = -1 ENOSPC (No space left on device) [pid 5083] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5082] <... futex resumed>) = 0 [pid 5083] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5082] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5083] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5082] <... futex resumed>) = 0 [pid 5083] ftruncate(4, 31 [pid 5082] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5083] <... ftruncate resumed>) = 0 [pid 5083] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5082] <... futex resumed>) = 0 [pid 5083] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5082] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5083] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5082] <... futex resumed>) = 0 [pid 5083] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [pid 5082] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5083] <... open resumed>) = 7 [pid 5083] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5082] <... futex resumed>) = 0 [pid 5083] <... futex resumed>) = 1 [pid 5083] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0 [pid 5082] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5082] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5083] <... pwritev2 resumed>) = 20480 [pid 5083] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5083] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5082] <... futex resumed>) = 0 [pid 5082] exit_group(0 [pid 5083] <... futex resumed>) = ? [pid 5082] <... exit_group resumed>) = ? [pid 5083] +++ exited with 0 +++ [pid 5082] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5082, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./6", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./6/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./6/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./6/binderfs") = 0 umount2("./6/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./6/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./6/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./6/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./6/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./6/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./6") = 0 mkdir("./7", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5084 ./strace-static-x86_64: Process 5084 attached [pid 5084] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5084] chdir("./7") = 0 [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) = 3 [pid 5084] write(3, "1000", 4) = 4 [pid 5084] close(3) = 0 [pid 5084] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5084] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5084] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5084] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5084] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5085], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5085 [pid 5084] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5084] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5085 attached [pid 5085] set_robust_list(0x7fa3182639e0, 24) = 0 [pid 5085] memfd_create("syzkaller", 0) = 3 [pid 5085] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [pid 5085] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5085] munmap(0x7fa30fe43000, 524288) = 0 [pid 5085] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5085] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5085] close(3) = 0 [pid 5085] mkdir("./file0", 0777) = 0 [pid 5085] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5085] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5085] chdir("./file0") = 0 [pid 5085] ioctl(4, LOOP_CLR_FD) = 0 [pid 5085] close(4) = 0 [pid 5085] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5085] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5084] <... futex resumed>) = 0 [pid 5084] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5084] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5085] <... futex resumed>) = 0 [pid 5085] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 4 [pid 5085] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5084] <... futex resumed>) = 0 [pid 5084] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5084] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5085] <... futex resumed>) = 1 [pid 5085] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = 5 [pid 5085] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5084] <... futex resumed>) = 0 [pid 5084] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5084] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5085] <... futex resumed>) = 1 [pid 5085] openat(-1, "/proc/self/exe", O_RDONLY) = 6 [pid 5085] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5084] <... futex resumed>) = 0 [pid 5084] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5085] <... futex resumed>) = 1 [pid 5084] <... futex resumed>) = 0 [pid 5085] sendfile(5, 6, NULL, 140737974943952 [ 53.865610][ T5085] loop0: detected capacity change from 0 to 1024 [ 53.876963][ T5085] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 53.887306][ T5085] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 53.899613][ T5085] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5084] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5085] <... sendfile resumed>) = 65536 [pid 5085] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5084] <... futex resumed>) = 0 [pid 5084] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5085] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0 [pid 5084] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5085] <... pwritev2 resumed>) = -1 ENOSPC (No space left on device) [pid 5085] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5084] <... futex resumed>) = 0 [pid 5084] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5084] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5085] ftruncate(4, 31) = 0 [pid 5085] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5084] <... futex resumed>) = 0 [pid 5084] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5084] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5085] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 7 [pid 5085] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5084] <... futex resumed>) = 0 [pid 5084] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5084] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5085] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = 20480 [pid 5085] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5084] <... futex resumed>) = 0 [pid 5084] exit_group(0) = ? [pid 5085] +++ exited with 0 +++ [pid 5084] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5084, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- umount2("./7", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./7/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./7/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./7/binderfs") = 0 umount2("./7/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./7/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./7/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./7/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./7/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./7/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./7") = 0 mkdir("./8", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5086 ./strace-static-x86_64: Process 5086 attached [pid 5086] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5086] chdir("./8") = 0 [pid 5086] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5086] setpgid(0, 0) = 0 [pid 5086] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5086] write(3, "1000", 4) = 4 [pid 5086] close(3) = 0 [pid 5086] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5086] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5086] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5086] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5086] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5087 attached , parent_tid=[5087], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5087 [pid 5087] set_robust_list(0x7fa3182639e0, 24) = 0 [pid 5087] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5086] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5087] <... futex resumed>) = 0 [pid 5086] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5087] memfd_create("syzkaller", 0) = 3 [pid 5087] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [pid 5087] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5087] munmap(0x7fa30fe43000, 524288) = 0 [pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5087] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5087] close(3) = 0 [pid 5087] mkdir("./file0", 0777) = 0 [pid 5087] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5087] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5087] chdir("./file0") = 0 [pid 5087] ioctl(4, LOOP_CLR_FD) = 0 [pid 5087] close(4) = 0 [pid 5087] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5086] <... futex resumed>) = 0 [pid 5086] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5086] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5087] <... futex resumed>) = 1 [pid 5087] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 4 [pid 5087] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5086] <... futex resumed>) = 0 [pid 5086] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5086] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5087] <... futex resumed>) = 1 [pid 5087] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = 5 [pid 5087] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5086] <... futex resumed>) = 0 [pid 5086] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5087] <... futex resumed>) = 1 [pid 5086] <... futex resumed>) = 0 [pid 5087] openat(-1, "/proc/self/exe", O_RDONLY [pid 5086] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5087] <... openat resumed>) = 6 [pid 5087] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5086] <... futex resumed>) = 0 [pid 5087] sendfile(5, 6, NULL, 140737974943952 [pid 5086] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 54.057280][ T5087] loop0: detected capacity change from 0 to 1024 [ 54.066275][ T5087] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 54.076588][ T5087] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 54.087971][ T5087] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5086] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5087] <... sendfile resumed>) = 65536 [pid 5087] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5087] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5086] <... futex resumed>) = 0 [pid 5086] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5086] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5087] <... futex resumed>) = 0 [pid 5087] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = -1 ENOSPC (No space left on device) [pid 5087] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5086] <... futex resumed>) = 0 [pid 5086] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5087] ftruncate(4, 31 [pid 5086] <... futex resumed>) = 0 [pid 5086] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5087] <... ftruncate resumed>) = 0 [pid 5087] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5086] <... futex resumed>) = 0 [pid 5087] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [pid 5086] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5086] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5087] <... open resumed>) = 7 [pid 5087] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5086] <... futex resumed>) = 0 [pid 5087] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5086] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5087] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5086] <... futex resumed>) = 0 [pid 5087] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0 [pid 5086] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5087] <... pwritev2 resumed>) = 20480 [pid 5087] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5086] <... futex resumed>) = 0 [pid 5086] exit_group(0) = ? [pid 5087] +++ exited with 0 +++ [pid 5086] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5086, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./8", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./8", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./8/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./8/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./8/binderfs") = 0 umount2("./8/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./8/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./8/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./8/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./8/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./8/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./8") = 0 mkdir("./9", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5088 ./strace-static-x86_64: Process 5088 attached [pid 5088] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5088] chdir("./9") = 0 [pid 5088] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5088] setpgid(0, 0) = 0 [pid 5088] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5088] write(3, "1000", 4) = 4 [pid 5088] close(3) = 0 [pid 5088] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5088] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5088] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5088] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5088] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5089 attached , parent_tid=[5089], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5089 [pid 5088] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5089] set_robust_list(0x7fa3182639e0, 24 [pid 5088] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5089] <... set_robust_list resumed>) = 0 [pid 5089] memfd_create("syzkaller", 0) = 3 [pid 5089] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [pid 5089] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5089] munmap(0x7fa30fe43000, 524288) = 0 [pid 5089] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5089] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5089] close(3) = 0 [pid 5089] mkdir("./file0", 0777) = 0 [pid 5089] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5089] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5089] chdir("./file0") = 0 [pid 5089] ioctl(4, LOOP_CLR_FD) = 0 [pid 5089] close(4) = 0 [pid 5089] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5088] <... futex resumed>) = 0 [pid 5088] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5088] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5089] <... futex resumed>) = 1 [pid 5089] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 4 [pid 5089] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5088] <... futex resumed>) = 0 [pid 5088] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5088] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5089] <... futex resumed>) = 1 [pid 5089] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = 5 [pid 5089] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5089] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5088] <... futex resumed>) = 0 [pid 5088] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5088] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5089] <... futex resumed>) = 0 [pid 5089] openat(-1, "/proc/self/exe", O_RDONLY) = 6 [pid 5089] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5088] <... futex resumed>) = 0 [pid 5088] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5088] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [ 54.254113][ T5089] loop0: detected capacity change from 0 to 1024 [ 54.264180][ T5089] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 54.274674][ T5089] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 54.286766][ T5089] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5089] sendfile(5, 6, NULL, 140737974943952) = 65536 [pid 5089] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5088] <... futex resumed>) = 0 [pid 5089] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5088] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5089] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5088] <... futex resumed>) = 0 [pid 5089] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0 [pid 5088] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5089] <... pwritev2 resumed>) = -1 ENOSPC (No space left on device) [pid 5089] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5088] <... futex resumed>) = 0 [pid 5089] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5088] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5089] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5088] <... futex resumed>) = 0 [pid 5089] ftruncate(4, 31 [pid 5088] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5089] <... ftruncate resumed>) = 0 [pid 5089] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5088] <... futex resumed>) = 0 [pid 5089] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5088] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5089] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5088] <... futex resumed>) = 0 [pid 5089] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [pid 5088] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5089] <... open resumed>) = 7 [pid 5089] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5088] <... futex resumed>) = 0 [pid 5088] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5089] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0 [pid 5088] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5089] <... pwritev2 resumed>) = 20480 [pid 5089] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5088] <... futex resumed>) = 0 [pid 5089] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5088] exit_group(0 [pid 5089] <... futex resumed>) = ? [pid 5088] <... exit_group resumed>) = ? [pid 5089] +++ exited with 0 +++ [pid 5088] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5088, si_uid=0, si_status=0, si_utime=0, si_stime=7 /* 0.07 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./9", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./9", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./9/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./9/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./9/binderfs") = 0 umount2("./9/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./9/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./9/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./9/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./9/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./9/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./9") = 0 mkdir("./10", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5090 attached , child_tidptr=0x55555702f5d0) = 5090 [pid 5090] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5090] chdir("./10") = 0 [pid 5090] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5090] setpgid(0, 0) = 0 [pid 5090] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5090] write(3, "1000", 4) = 4 [pid 5090] close(3) = 0 [pid 5090] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5090] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5090] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5090] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5090] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5091 attached , parent_tid=[5091], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5091 [pid 5090] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5091] set_robust_list(0x7fa3182639e0, 24 [pid 5090] <... futex resumed>) = 0 [pid 5090] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5091] <... set_robust_list resumed>) = 0 [pid 5091] memfd_create("syzkaller", 0) = 3 [pid 5091] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [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"..., 524288) = 524288 [pid 5091] munmap(0x7fa30fe43000, 524288) = 0 [pid 5091] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5091] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5091] close(3) = 0 [pid 5091] mkdir("./file0", 0777) = 0 [pid 5091] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 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 [pid 5091] close(4) = 0 [pid 5091] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5090] <... futex resumed>) = 0 [pid 5090] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5090] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5091] <... futex resumed>) = 1 [pid 5091] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 4 [pid 5091] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5090] <... futex resumed>) = 0 [pid 5090] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5090] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5091] <... futex resumed>) = 1 [pid 5091] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = 5 [pid 5091] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5090] <... futex resumed>) = 0 [pid 5090] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5090] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5091] openat(-1, "/proc/self/exe", O_RDONLY) = 6 [pid 5091] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5090] <... futex resumed>) = 0 [pid 5090] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5090] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5091] <... futex resumed>) = 1 [ 54.456056][ T5091] loop0: detected capacity change from 0 to 1024 [ 54.466615][ T5091] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 54.476874][ T5091] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 54.489384][ T5091] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5091] sendfile(5, 6, NULL, 140737974943952) = 65536 [pid 5091] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5090] <... futex resumed>) = 0 [pid 5090] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5090] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5091] <... futex resumed>) = 1 [pid 5091] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = -1 ENOSPC (No space left on device) [pid 5091] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5090] <... futex resumed>) = 0 [pid 5090] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5090] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5091] <... futex resumed>) = 1 [pid 5091] ftruncate(4, 31) = 0 [pid 5091] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5090] <... futex resumed>) = 0 [pid 5091] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [pid 5090] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5090] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5091] <... open resumed>) = 7 [pid 5091] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5090] <... futex resumed>) = 0 [pid 5090] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5090] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5091] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = 20480 [pid 5091] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5090] <... futex resumed>) = 0 [pid 5091] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5090] exit_group(0) = ? [pid 5091] <... futex resumed>) = ? [pid 5091] +++ exited with 0 +++ [pid 5090] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5090, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- umount2("./10", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./10", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./10/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./10/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./10/binderfs") = 0 umount2("./10/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./10/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./10/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./10/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./10/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./10/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./10") = 0 mkdir("./11", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5092 attached , child_tidptr=0x55555702f5d0) = 5092 [pid 5092] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5092] chdir("./11") = 0 [pid 5092] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5092] setpgid(0, 0) = 0 [pid 5092] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5092] write(3, "1000", 4) = 4 [pid 5092] close(3) = 0 [pid 5092] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5092] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5092] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5092] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5092] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5093 attached , parent_tid=[5093], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5093 [pid 5092] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5092] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5093] set_robust_list(0x7fa3182639e0, 24) = 0 [pid 5093] memfd_create("syzkaller", 0) = 3 [pid 5093] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [pid 5093] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5093] munmap(0x7fa30fe43000, 524288) = 0 [pid 5093] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5093] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5093] close(3) = 0 [pid 5093] mkdir("./file0", 0777) = 0 [ 54.657757][ T5093] loop0: detected capacity change from 0 to 1024 [ 54.677354][ T5093] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 54.687818][ T5093] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [pid 5093] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5093] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5093] chdir("./file0") = 0 [pid 5093] ioctl(4, LOOP_CLR_FD) = 0 [pid 5093] close(4) = 0 [pid 5093] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5092] <... futex resumed>) = 0 [pid 5092] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5092] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5093] <... futex resumed>) = 1 [pid 5093] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 4 [pid 5093] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5092] <... futex resumed>) = 0 [pid 5092] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5092] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5093] <... futex resumed>) = 1 [pid 5093] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = 5 [pid 5093] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5092] <... futex resumed>) = 0 [pid 5092] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5092] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5093] <... futex resumed>) = 1 [pid 5093] openat(-1, "/proc/self/exe", O_RDONLY) = 6 [pid 5093] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5092] <... futex resumed>) = 0 [pid 5092] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5092] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5093] <... futex resumed>) = 1 [ 54.700444][ T5093] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5093] sendfile(5, 6, NULL, 140737974943952) = 65536 [pid 5093] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5093] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5092] <... futex resumed>) = 0 [pid 5092] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5093] <... futex resumed>) = 0 [pid 5092] <... futex resumed>) = 1 [pid 5093] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0 [pid 5092] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5093] <... pwritev2 resumed>) = -1 ENOSPC (No space left on device) [pid 5093] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5093] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5092] <... futex resumed>) = 0 [pid 5092] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5093] <... futex resumed>) = 0 [pid 5092] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5093] ftruncate(4, 31) = 0 [pid 5093] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5092] <... futex resumed>) = 0 [pid 5093] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [pid 5092] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5092] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5093] <... open resumed>) = 7 [pid 5093] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5092] <... futex resumed>) = 0 [pid 5092] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5092] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5093] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = 20480 [pid 5093] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5092] <... futex resumed>) = 0 [pid 5093] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5092] exit_group(0 [pid 5093] <... futex resumed>) = ? [pid 5092] <... exit_group resumed>) = ? [pid 5093] +++ exited with 0 +++ [pid 5092] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5092, si_uid=0, si_status=0, si_utime=0, si_stime=7 /* 0.07 s */} --- umount2("./11", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./11", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./11/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./11/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./11/binderfs") = 0 umount2("./11/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./11/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./11/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./11/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./11/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./11/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./11") = 0 mkdir("./12", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5094 ./strace-static-x86_64: Process 5094 attached [pid 5094] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5094] chdir("./12") = 0 [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) = 3 [pid 5094] write(3, "1000", 4) = 4 [pid 5094] close(3) = 0 [pid 5094] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5094] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5094] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5094] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5094] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5095 attached , parent_tid=[5095], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5095 [pid 5094] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5094] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5095] set_robust_list(0x7fa3182639e0, 24) = 0 [pid 5095] memfd_create("syzkaller", 0) = 3 [pid 5095] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [pid 5095] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5095] munmap(0x7fa30fe43000, 524288) = 0 [pid 5095] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5095] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5095] close(3) = 0 [pid 5095] mkdir("./file0", 0777) = 0 [pid 5095] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5095] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5095] chdir("./file0") = 0 [pid 5095] ioctl(4, LOOP_CLR_FD) = 0 [pid 5095] close(4) = 0 [pid 5095] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5094] <... futex resumed>) = 0 [pid 5094] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5094] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5095] <... futex resumed>) = 1 [pid 5095] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 4 [pid 5095] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5094] <... futex resumed>) = 0 [pid 5094] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5094] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5095] <... futex resumed>) = 1 [pid 5095] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = 5 [pid 5095] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5094] <... futex resumed>) = 0 [pid 5094] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5094] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5095] <... futex resumed>) = 1 [pid 5095] openat(-1, "/proc/self/exe", O_RDONLY) = 6 [pid 5095] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5094] <... futex resumed>) = 0 [pid 5095] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5094] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5094] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5095] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [ 54.858032][ T5095] loop0: detected capacity change from 0 to 1024 [ 54.868478][ T5095] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 54.878781][ T5095] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 54.891502][ T5095] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5095] sendfile(5, 6, NULL, 140737974943952 [pid 5094] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5094] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 5094] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 5094] futex(0x7fa31833d7fc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5094] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa30fea2000 [pid 5094] mprotect(0x7fa30fea3000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5094] clone(child_stack=0x7fa30fec23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5096], tls=0x7fa30fec2700, child_tidptr=0x7fa30fec29d0) = 5096 [pid 5094] futex(0x7fa31833d7f8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5094] futex(0x7fa31833d7fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5096 attached [pid 5096] set_robust_list(0x7fa30fec29e0, 24) = 0 [pid 5096] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = -1 ENOSPC (No space left on device) [pid 5096] futex(0x7fa31833d7fc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5094] <... futex resumed>) = 0 [pid 5096] <... futex resumed>) = 1 [pid 5096] ftruncate(4, 31 [pid 5094] futex(0x7fa31833d7f8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5094] futex(0x7fa31833d7fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5095] <... sendfile resumed>) = 65536 [pid 5095] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5095] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5096] <... ftruncate resumed>) = 0 [pid 5096] futex(0x7fa31833d7fc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5094] <... futex resumed>) = 0 [pid 5096] futex(0x7fa31833d7f8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5094] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5095] <... futex resumed>) = 0 [pid 5094] <... futex resumed>) = 1 [pid 5095] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [pid 5094] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5095] <... open resumed>) = 7 [pid 5095] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5094] <... futex resumed>) = 0 [pid 5095] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5094] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5095] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5094] <... futex resumed>) = 0 [pid 5095] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0 [pid 5094] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5095] <... pwritev2 resumed>) = -1 ENOSPC (No space left on device) [pid 5095] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5094] <... futex resumed>) = 0 [pid 5095] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5094] exit_group(0 [pid 5095] <... futex resumed>) = ? [pid 5094] <... exit_group resumed>) = ? [pid 5095] +++ exited with 0 +++ [pid 5096] <... futex resumed>) = ? [pid 5096] +++ exited with 0 +++ [pid 5094] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5094, si_uid=0, si_status=0, si_utime=0, si_stime=7 /* 0.07 s */} --- umount2("./12", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./12", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./12/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./12/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./12/binderfs") = 0 umount2("./12/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./12/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./12/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./12/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./12/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./12/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./12") = 0 mkdir("./13", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5097 ./strace-static-x86_64: Process 5097 attached [pid 5097] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5097] chdir("./13") = 0 [pid 5097] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5097] setpgid(0, 0) = 0 [pid 5097] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5097] write(3, "1000", 4) = 4 [pid 5097] close(3) = 0 [pid 5097] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5097] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5097] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5097] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5097] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5098 attached [pid 5098] set_robust_list(0x7fa3182639e0, 24 [pid 5097] <... clone resumed>, parent_tid=[5098], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5098 [pid 5098] <... set_robust_list resumed>) = 0 [pid 5097] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5097] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5098] memfd_create("syzkaller", 0) = 3 [pid 5098] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [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"..., 524288) = 524288 [pid 5098] munmap(0x7fa30fe43000, 524288) = 0 [pid 5098] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5098] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5098] close(3) = 0 [pid 5098] mkdir("./file0", 0777) = 0 [pid 5098] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5098] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5098] chdir("./file0") = 0 [pid 5098] ioctl(4, LOOP_CLR_FD) = 0 [pid 5098] close(4) = 0 [pid 5098] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5097] <... futex resumed>) = 0 [pid 5098] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5097] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5098] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5097] <... futex resumed>) = 0 [pid 5098] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [pid 5097] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5098] <... open resumed>) = 4 [pid 5098] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5097] <... futex resumed>) = 0 [pid 5098] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000 [pid 5097] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5098] <... open resumed>) = 5 [pid 5097] <... futex resumed>) = 0 [pid 5097] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5098] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5097] <... futex resumed>) = 0 [pid 5097] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5097] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5098] openat(-1, "/proc/self/exe", O_RDONLY) = 6 [pid 5098] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5097] <... futex resumed>) = 0 [pid 5098] <... futex resumed>) = 1 [pid 5097] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5098] sendfile(5, 6, NULL, 140737974943952 [pid 5097] <... futex resumed>) = 0 [ 55.040535][ T5098] loop0: detected capacity change from 0 to 1024 [ 55.050593][ T5098] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 55.060906][ T5098] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 55.073141][ T5098] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5097] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5098] <... sendfile resumed>) = 65536 [pid 5098] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5098] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5097] <... futex resumed>) = 0 [pid 5097] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5097] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5098] <... futex resumed>) = 0 [pid 5098] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = -1 ENOSPC (No space left on device) [pid 5098] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5097] <... futex resumed>) = 0 [pid 5098] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5097] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5098] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5097] <... futex resumed>) = 0 [pid 5098] ftruncate(4, 31 [pid 5097] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5098] <... ftruncate resumed>) = 0 [pid 5098] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5097] <... futex resumed>) = 0 [pid 5098] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5097] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5098] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5097] <... futex resumed>) = 0 [pid 5098] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [pid 5097] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5098] <... open resumed>) = 7 [pid 5098] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5097] <... futex resumed>) = 0 [pid 5097] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5098] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0 [pid 5097] <... futex resumed>) = 0 [pid 5097] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5098] <... pwritev2 resumed>) = 20480 [pid 5098] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5097] <... futex resumed>) = 0 [pid 5098] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5097] exit_group(0) = ? [pid 5098] <... futex resumed>) = ? [pid 5098] +++ exited with 0 +++ [pid 5097] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5097, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./13", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./13", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./13/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./13/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./13/binderfs") = 0 umount2("./13/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./13/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./13/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./13/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./13/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./13/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./13") = 0 mkdir("./14", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5099 ./strace-static-x86_64: Process 5099 attached [pid 5099] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5099] chdir("./14") = 0 [pid 5099] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5099] setpgid(0, 0) = 0 [pid 5099] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5099] write(3, "1000", 4) = 4 [pid 5099] close(3) = 0 [pid 5099] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5099] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5099] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5099] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5099] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5100 attached , parent_tid=[5100], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5100 [pid 5099] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5099] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5100] set_robust_list(0x7fa3182639e0, 24) = 0 [pid 5100] memfd_create("syzkaller", 0) = 3 [pid 5100] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [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"..., 524288) = 524288 [pid 5100] munmap(0x7fa30fe43000, 524288) = 0 [pid 5100] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5100] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5100] close(3) = 0 [pid 5100] mkdir("./file0", 0777) = 0 [pid 5100] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5100] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5100] chdir("./file0") = 0 [pid 5100] ioctl(4, LOOP_CLR_FD) = 0 [pid 5100] close(4) = 0 [pid 5100] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5099] <... futex resumed>) = 0 [pid 5099] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5099] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5100] <... futex resumed>) = 1 [pid 5100] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 4 [pid 5100] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5099] <... futex resumed>) = 0 [pid 5099] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5099] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5100] <... futex resumed>) = 1 [pid 5100] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = 5 [pid 5100] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5099] <... futex resumed>) = 0 [pid 5100] <... futex resumed>) = 1 [pid 5100] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5099] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5099] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5100] <... futex resumed>) = 0 [pid 5100] openat(-1, "/proc/self/exe", O_RDONLY) = 6 [pid 5100] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5099] <... futex resumed>) = 0 [pid 5100] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5099] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5099] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5100] <... futex resumed>) = 0 [ 55.236426][ T5100] loop0: detected capacity change from 0 to 1024 [ 55.246101][ T5100] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 55.256359][ T5100] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 55.269318][ T5100] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5100] sendfile(5, 6, NULL, 140737974943952) = 65536 [pid 5100] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5099] <... futex resumed>) = 0 [pid 5100] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 5099] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5100] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0 [pid 5099] <... futex resumed>) = 0 [pid 5099] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5100] <... pwritev2 resumed>) = -1 ENOSPC (No space left on device) [pid 5100] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5099] <... futex resumed>) = 0 [pid 5099] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5099] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5100] ftruncate(4, 31) = 0 [pid 5100] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5099] <... futex resumed>) = 0 [pid 5099] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5099] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5100] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 7 [pid 5100] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5099] <... futex resumed>) = 0 [pid 5099] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5099] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5100] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = 20480 [pid 5100] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5099] <... futex resumed>) = 0 [pid 5099] exit_group(0) = ? [pid 5100] +++ exited with 0 +++ [pid 5099] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5099, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- umount2("./14", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./14", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./14/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./14/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./14/binderfs") = 0 umount2("./14/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./14/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./14/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./14/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./14/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./14/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./14") = 0 mkdir("./15", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5101 ./strace-static-x86_64: Process 5101 attached [pid 5101] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5101] chdir("./15") = 0 [pid 5101] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5101] setpgid(0, 0) = 0 [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 5101] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5101] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5101] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5101] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5102], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5102 [pid 5101] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5101] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5102 attached [pid 5102] set_robust_list(0x7fa3182639e0, 24) = 0 [pid 5102] memfd_create("syzkaller", 0) = 3 [pid 5102] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [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"..., 524288) = 524288 [pid 5102] munmap(0x7fa30fe43000, 524288) = 0 [pid 5102] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5102] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5102] close(3) = 0 [pid 5102] mkdir("./file0", 0777) = 0 [pid 5102] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5102] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5102] chdir("./file0") = 0 [pid 5102] ioctl(4, LOOP_CLR_FD) = 0 [pid 5102] close(4) = 0 [pid 5102] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5101] <... futex resumed>) = 0 [pid 5101] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5101] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5102] <... futex resumed>) = 1 [pid 5102] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 4 [pid 5102] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5101] <... futex resumed>) = 0 [pid 5101] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5101] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5102] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = 5 [pid 5102] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5101] <... futex resumed>) = 0 [pid 5101] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5101] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5102] <... futex resumed>) = 1 [pid 5102] openat(-1, "/proc/self/exe", O_RDONLY) = 6 [pid 5102] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5101] <... futex resumed>) = 0 [pid 5101] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5101] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5102] <... futex resumed>) = 1 [ 55.436072][ T5102] loop0: detected capacity change from 0 to 1024 [ 55.445508][ T5102] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 55.456118][ T5102] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 55.468710][ T5102] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5102] sendfile(5, 6, NULL, 140737974943952) = 65536 [pid 5102] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5101] <... futex resumed>) = 0 [pid 5102] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5101] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5102] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5101] <... futex resumed>) = 0 [pid 5102] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0 [pid 5101] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5102] <... pwritev2 resumed>) = -1 ENOSPC (No space left on device) [pid 5102] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5101] <... futex resumed>) = 0 [pid 5102] <... futex resumed>) = 1 [pid 5101] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5102] ftruncate(4, 31 [pid 5101] <... futex resumed>) = 0 [pid 5101] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5102] <... ftruncate resumed>) = 0 [pid 5102] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5101] <... futex resumed>) = 0 [pid 5101] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5101] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5102] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 7 [pid 5102] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5101] <... futex resumed>) = 0 [pid 5101] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5101] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5102] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = 20480 [pid 5102] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5101] <... futex resumed>) = 0 [pid 5102] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5101] exit_group(0 [pid 5102] <... futex resumed>) = ? [pid 5101] <... exit_group resumed>) = ? [pid 5102] +++ exited with 0 +++ [pid 5101] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5101, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- umount2("./15", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./15", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./15/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./15/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./15/binderfs") = 0 umount2("./15/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./15/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./15/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./15/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./15/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./15/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./15") = 0 mkdir("./16", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5103 ./strace-static-x86_64: Process 5103 attached [pid 5103] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5103] chdir("./16") = 0 [pid 5103] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5103] setpgid(0, 0) = 0 [pid 5103] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5103] write(3, "1000", 4) = 4 [pid 5103] close(3) = 0 [pid 5103] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5103] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5103] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5103] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5103] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5104], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5104 [pid 5103] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5103] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5104 attached [pid 5104] set_robust_list(0x7fa3182639e0, 24) = 0 [pid 5104] memfd_create("syzkaller", 0) = 3 [pid 5104] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [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"..., 524288) = 524288 [pid 5104] munmap(0x7fa30fe43000, 524288) = 0 [pid 5104] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5104] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5104] close(3) = 0 [pid 5104] mkdir("./file0", 0777) = 0 [pid 5104] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5104] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5104] chdir("./file0") = 0 [pid 5104] ioctl(4, LOOP_CLR_FD) = 0 [pid 5104] close(4) = 0 [pid 5104] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5103] <... futex resumed>) = 0 [pid 5103] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5103] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5104] <... futex resumed>) = 1 [pid 5104] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 4 [pid 5104] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5103] <... futex resumed>) = 0 [pid 5103] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5103] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5104] <... futex resumed>) = 1 [pid 5104] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = 5 [pid 5104] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5103] <... futex resumed>) = 0 [pid 5103] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5103] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5104] <... futex resumed>) = 1 [pid 5104] openat(-1, "/proc/self/exe", O_RDONLY) = 6 [pid 5104] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5103] <... futex resumed>) = 0 [pid 5103] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5103] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5104] <... futex resumed>) = 1 [ 55.634527][ T5104] loop0: detected capacity change from 0 to 1024 [ 55.644596][ T5104] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 55.654986][ T5104] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 55.667434][ T5104] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5104] sendfile(5, 6, NULL, 140737974943952) = 65536 [pid 5104] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5103] <... futex resumed>) = 0 [pid 5103] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5103] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5104] <... futex resumed>) = 1 [pid 5104] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = -1 ENOSPC (No space left on device) [pid 5104] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5103] <... futex resumed>) = 0 [pid 5103] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5103] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5104] <... futex resumed>) = 1 [pid 5104] ftruncate(4, 31) = 0 [pid 5104] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5103] <... futex resumed>) = 0 [pid 5103] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5103] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5104] <... futex resumed>) = 1 [pid 5104] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 7 [pid 5104] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5103] <... futex resumed>) = 0 [pid 5103] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5103] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5104] <... futex resumed>) = 1 [pid 5104] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = 20480 [pid 5104] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5103] <... futex resumed>) = 0 [pid 5104] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5103] exit_group(0) = ? [pid 5104] <... futex resumed>) = ? [pid 5104] +++ exited with 0 +++ [pid 5103] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5103, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./16", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./16", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./16/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./16/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./16/binderfs") = 0 umount2("./16/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./16/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./16/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./16/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./16/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./16/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./16") = 0 mkdir("./17", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5105 ./strace-static-x86_64: Process 5105 attached [pid 5105] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5105] chdir("./17") = 0 [pid 5105] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5105] setpgid(0, 0) = 0 [pid 5105] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5105] write(3, "1000", 4) = 4 [pid 5105] close(3) = 0 [pid 5105] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5105] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5105] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5105] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5105] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5106 attached , parent_tid=[5106], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5106 [pid 5105] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5105] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5106] set_robust_list(0x7fa3182639e0, 24) = 0 [pid 5106] memfd_create("syzkaller", 0) = 3 [pid 5106] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [pid 5106] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5106] munmap(0x7fa30fe43000, 524288) = 0 [pid 5106] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5106] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5106] close(3) = 0 [pid 5106] mkdir("./file0", 0777) = 0 [pid 5106] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5106] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5106] chdir("./file0") = 0 [pid 5106] ioctl(4, LOOP_CLR_FD) = 0 [pid 5106] close(4) = 0 [pid 5106] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5105] <... futex resumed>) = 0 [pid 5105] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5105] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5106] <... futex resumed>) = 1 [pid 5106] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 4 [pid 5106] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5105] <... futex resumed>) = 0 [pid 5105] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5105] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5106] <... futex resumed>) = 1 [pid 5106] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = 5 [pid 5106] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5105] <... futex resumed>) = 0 [pid 5105] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5105] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5106] <... futex resumed>) = 1 [pid 5106] openat(-1, "/proc/self/exe", O_RDONLY) = 6 [pid 5106] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5105] <... futex resumed>) = 0 [pid 5105] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5105] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5106] <... futex resumed>) = 1 [ 55.796021][ T5106] loop0: detected capacity change from 0 to 1024 [ 55.805265][ T5106] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 55.815959][ T5106] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 55.827526][ T5106] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5106] sendfile(5, 6, NULL, 140737974943952) = 65536 [pid 5106] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5106] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5105] <... futex resumed>) = 0 [pid 5105] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5105] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5106] <... futex resumed>) = 0 [pid 5106] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = -1 ENOSPC (No space left on device) [pid 5106] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5105] <... futex resumed>) = 0 [pid 5106] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5105] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5106] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5105] <... futex resumed>) = 0 [pid 5106] ftruncate(4, 31 [pid 5105] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5106] <... ftruncate resumed>) = 0 [pid 5106] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5105] <... futex resumed>) = 0 [pid 5106] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5105] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5106] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5105] <... futex resumed>) = 0 [pid 5105] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5106] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 7 [pid 5106] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5105] <... futex resumed>) = 0 [pid 5106] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0 [pid 5105] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5105] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5106] <... pwritev2 resumed>) = 20480 [pid 5106] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5105] <... futex resumed>) = 0 [pid 5106] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5105] exit_group(0 [pid 5106] <... futex resumed>) = ? [pid 5105] <... exit_group resumed>) = ? [pid 5106] +++ exited with 0 +++ [pid 5105] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5105, si_uid=0, si_status=0, si_utime=0, si_stime=7 /* 0.07 s */} --- umount2("./17", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./17/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./17/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./17/binderfs") = 0 umount2("./17/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./17/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./17/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./17/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./17/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17") = 0 mkdir("./18", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5107 attached [pid 5107] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5107] chdir("./18") = 0 [pid 5107] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5107] setpgid(0, 0) = 0 [pid 5107] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5107] write(3, "1000", 4) = 4 [pid 5107] close(3) = 0 [pid 5107] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5107] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5107] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5107] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5068] <... clone resumed>, child_tidptr=0x55555702f5d0) = 5107 [pid 5107] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5108 attached , parent_tid=[5108], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5108 [pid 5108] set_robust_list(0x7fa3182639e0, 24 [pid 5107] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5108] <... set_robust_list resumed>) = 0 [pid 5107] <... futex resumed>) = 0 [pid 5107] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5108] memfd_create("syzkaller", 0) = 3 [pid 5108] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [pid 5108] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5108] munmap(0x7fa30fe43000, 524288) = 0 [pid 5108] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5108] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5108] close(3) = 0 [pid 5108] mkdir("./file0", 0777) = 0 [pid 5108] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5108] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5108] chdir("./file0") = 0 [pid 5108] ioctl(4, LOOP_CLR_FD) = 0 [pid 5108] close(4) = 0 [pid 5108] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5107] <... futex resumed>) = 0 [pid 5107] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5107] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5108] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 4 [pid 5108] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5107] <... futex resumed>) = 0 [pid 5107] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5107] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5108] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = 5 [pid 5108] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5107] <... futex resumed>) = 0 [pid 5107] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5107] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5108] <... futex resumed>) = 1 [pid 5108] openat(-1, "/proc/self/exe", O_RDONLY) = 6 [pid 5108] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5107] <... futex resumed>) = 0 [pid 5107] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5107] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5108] <... futex resumed>) = 1 [ 55.973692][ T5108] loop0: detected capacity change from 0 to 1024 [ 55.983465][ T5108] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 55.993940][ T5108] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 56.005611][ T5108] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5108] sendfile(5, 6, NULL, 140737974943952) = 65536 [pid 5108] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5107] <... futex resumed>) = 0 [pid 5107] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5107] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5108] <... futex resumed>) = 1 [pid 5108] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = -1 ENOSPC (No space left on device) [pid 5108] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5107] <... futex resumed>) = 0 [pid 5107] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5107] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5108] ftruncate(4, 31) = 0 [pid 5108] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5107] <... futex resumed>) = 0 [pid 5108] <... futex resumed>) = 1 [pid 5107] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5108] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [pid 5107] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5108] <... open resumed>) = 7 [pid 5108] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5107] <... futex resumed>) = 0 [pid 5107] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5107] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5108] <... futex resumed>) = 1 [pid 5108] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = 20480 [pid 5108] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5107] <... futex resumed>) = 0 [pid 5107] exit_group(0) = ? [pid 5108] <... futex resumed>) = ? [pid 5108] +++ exited with 0 +++ [pid 5107] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5107, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- umount2("./18", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./18/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./18/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./18/binderfs") = 0 umount2("./18/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./18/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./18/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./18/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./18/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18") = 0 mkdir("./19", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5109 ./strace-static-x86_64: Process 5109 attached [pid 5109] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5109] chdir("./19") = 0 [pid 5109] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5109] setpgid(0, 0) = 0 [pid 5109] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5109] write(3, "1000", 4) = 4 [pid 5109] close(3) = 0 [pid 5109] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5109] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5109] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5109] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5109] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5110], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5110 [pid 5109] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5109] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5110 attached [pid 5110] set_robust_list(0x7fa3182639e0, 24) = 0 [pid 5110] memfd_create("syzkaller", 0) = 3 [pid 5110] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [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"..., 524288) = 524288 [pid 5110] munmap(0x7fa30fe43000, 524288) = 0 [pid 5110] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5110] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5110] close(3) = 0 [pid 5110] mkdir("./file0", 0777) = 0 [pid 5110] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5110] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5110] chdir("./file0") = 0 [pid 5110] ioctl(4, LOOP_CLR_FD) = 0 [pid 5110] close(4) = 0 [pid 5110] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5109] <... futex resumed>) = 0 [pid 5109] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5109] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5110] <... futex resumed>) = 1 [pid 5110] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 4 [pid 5110] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5109] <... futex resumed>) = 0 [pid 5109] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5109] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5110] <... futex resumed>) = 1 [pid 5110] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = 5 [pid 5110] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5109] <... futex resumed>) = 0 [pid 5109] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5109] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5110] <... futex resumed>) = 1 [pid 5110] openat(-1, "/proc/self/exe", O_RDONLY) = 6 [pid 5110] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5109] <... futex resumed>) = 0 [pid 5109] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5109] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5110] <... futex resumed>) = 1 [ 56.146929][ T5110] loop0: detected capacity change from 0 to 1024 [ 56.156593][ T5110] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 56.167054][ T5110] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 56.178591][ T5110] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5110] sendfile(5, 6, NULL, 140737974943952) = 65536 [pid 5110] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5109] <... futex resumed>) = 0 [pid 5110] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5109] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5109] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5110] <... futex resumed>) = 0 [pid 5110] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = -1 ENOSPC (No space left on device) [pid 5110] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5109] <... futex resumed>) = 0 [pid 5110] ftruncate(4, 31 [pid 5109] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5109] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5110] <... ftruncate resumed>) = 0 [pid 5110] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5109] <... futex resumed>) = 0 [pid 5109] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5110] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [pid 5109] <... futex resumed>) = 0 [pid 5109] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5110] <... open resumed>) = 7 [pid 5110] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5109] <... futex resumed>) = 0 [pid 5109] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5109] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5110] <... futex resumed>) = 1 [pid 5110] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = 20480 [pid 5110] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5109] <... futex resumed>) = 0 [pid 5109] exit_group(0) = ? [pid 5110] <... futex resumed>) = ? [pid 5110] +++ exited with 0 +++ [pid 5109] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5109, si_uid=0, si_status=0, si_utime=0, si_stime=7 /* 0.07 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./19", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./19", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./19/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./19/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./19/binderfs") = 0 umount2("./19/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./19/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./19/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./19/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./19/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./19/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./19") = 0 mkdir("./20", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5111 ./strace-static-x86_64: Process 5111 attached [pid 5111] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5111] chdir("./20") = 0 [pid 5111] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5111] setpgid(0, 0) = 0 [pid 5111] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5111] write(3, "1000", 4) = 4 [pid 5111] close(3) = 0 [pid 5111] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5111] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5111] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5111] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5111] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5112 attached , parent_tid=[5112], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5112 [pid 5111] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5111] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5112] set_robust_list(0x7fa3182639e0, 24) = 0 [pid 5112] memfd_create("syzkaller", 0) = 3 [pid 5112] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [pid 5112] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5112] munmap(0x7fa30fe43000, 524288) = 0 [pid 5112] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5112] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5112] close(3) = 0 [pid 5112] mkdir("./file0", 0777) = 0 [pid 5112] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5112] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5112] chdir("./file0") = 0 [pid 5112] ioctl(4, LOOP_CLR_FD) = 0 [pid 5112] close(4) = 0 [pid 5112] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5112] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5111] <... futex resumed>) = 0 [pid 5111] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5111] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5112] <... futex resumed>) = 0 [pid 5112] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 4 [pid 5112] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5111] <... futex resumed>) = 0 [pid 5111] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5111] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5112] <... futex resumed>) = 1 [pid 5112] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = 5 [pid 5112] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5111] <... futex resumed>) = 0 [pid 5111] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5111] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5112] <... futex resumed>) = 1 [pid 5112] openat(-1, "/proc/self/exe", O_RDONLY) = 6 [pid 5112] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5111] <... futex resumed>) = 0 [pid 5111] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5112] <... futex resumed>) = 1 [pid 5111] <... futex resumed>) = 0 [pid 5111] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [ 56.333710][ T5112] loop0: detected capacity change from 0 to 1024 [ 56.343909][ T5112] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 56.354157][ T5112] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 56.365829][ T5112] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5112] sendfile(5, 6, NULL, 140737974943952) = 65536 [pid 5112] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5111] <... futex resumed>) = 0 [pid 5111] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5112] <... futex resumed>) = 1 [pid 5112] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0 [pid 5111] <... futex resumed>) = 0 [pid 5111] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5112] <... pwritev2 resumed>) = -1 ENOSPC (No space left on device) [pid 5112] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5111] <... futex resumed>) = 0 [pid 5111] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5112] ftruncate(4, 31 [pid 5111] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5112] <... ftruncate resumed>) = 0 [pid 5112] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5111] <... futex resumed>) = 0 [pid 5112] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [pid 5111] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5111] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5112] <... open resumed>) = 7 [pid 5112] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5111] <... futex resumed>) = 0 [pid 5111] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5112] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0 [pid 5111] <... futex resumed>) = 0 [pid 5111] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5112] <... pwritev2 resumed>) = 20480 [pid 5112] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5111] <... futex resumed>) = 0 [pid 5111] exit_group(0) = ? [pid 5112] +++ exited with 0 +++ [pid 5111] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5111, si_uid=0, si_status=0, si_utime=0, si_stime=7 /* 0.07 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./20", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./20", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./20/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./20/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./20/binderfs") = 0 umount2("./20/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./20/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./20/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./20/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./20/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./20/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./20") = 0 mkdir("./21", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5113 ./strace-static-x86_64: Process 5113 attached [pid 5113] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5113] chdir("./21") = 0 [pid 5113] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5113] setpgid(0, 0) = 0 [pid 5113] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5113] write(3, "1000", 4) = 4 [pid 5113] close(3) = 0 [pid 5113] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5113] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5113] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5113] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5113] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5114 attached [pid 5114] set_robust_list(0x7fa3182639e0, 24) = 0 [pid 5113] <... clone resumed>, parent_tid=[5114], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5114 [pid 5114] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5113] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5114] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5113] <... futex resumed>) = 0 [pid 5113] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5114] memfd_create("syzkaller", 0) = 3 [pid 5114] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [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"..., 524288) = 524288 [pid 5114] munmap(0x7fa30fe43000, 524288) = 0 [pid 5114] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5114] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5114] close(3) = 0 [pid 5114] mkdir("./file0", 0777) = 0 [pid 5114] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 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] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5113] <... futex resumed>) = 0 [pid 5113] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5113] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5114] <... futex resumed>) = 1 [pid 5114] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 4 [pid 5114] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5113] <... futex resumed>) = 0 [pid 5113] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5113] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5114] <... futex resumed>) = 1 [pid 5114] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = 5 [pid 5114] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5113] <... futex resumed>) = 0 [pid 5113] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5113] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5114] <... futex resumed>) = 1 [pid 5114] openat(-1, "/proc/self/exe", O_RDONLY) = 6 [pid 5114] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5113] <... futex resumed>) = 0 [pid 5114] sendfile(5, 6, NULL, 140737974943952 [pid 5113] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 56.529407][ T5114] loop0: detected capacity change from 0 to 1024 [ 56.539003][ T5114] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 56.549261][ T5114] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 56.561380][ T5114] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5113] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5114] <... sendfile resumed>) = 65536 [pid 5114] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5113] <... futex resumed>) = 0 [pid 5113] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5113] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5114] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = -1 ENOSPC (No space left on device) [pid 5114] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5113] <... futex resumed>) = 0 [pid 5114] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5113] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5114] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5113] <... futex resumed>) = 0 [pid 5114] ftruncate(4, 31 [pid 5113] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5114] <... ftruncate resumed>) = 0 [pid 5114] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5113] <... futex resumed>) = 0 [pid 5114] <... futex resumed>) = 1 [pid 5113] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5114] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [pid 5113] <... futex resumed>) = 0 [pid 5113] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5114] <... open resumed>) = 7 [pid 5114] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5113] <... futex resumed>) = 0 [pid 5114] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5113] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5114] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5113] <... futex resumed>) = 0 [pid 5114] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0 [pid 5113] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5114] <... pwritev2 resumed>) = 20480 [pid 5114] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5113] <... futex resumed>) = 0 [pid 5114] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5113] exit_group(0) = ? [pid 5114] <... futex resumed>) = ? [pid 5114] +++ exited with 0 +++ [pid 5113] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5113, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./21", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./21", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./21/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./21/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./21/binderfs") = 0 umount2("./21/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./21/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./21/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./21/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./21/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./21/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./21") = 0 mkdir("./22", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5115 ./strace-static-x86_64: Process 5115 attached [pid 5115] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5115] chdir("./22") = 0 [pid 5115] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5115] setpgid(0, 0) = 0 [pid 5115] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5115] write(3, "1000", 4) = 4 [pid 5115] close(3) = 0 [pid 5115] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5115] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5115] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5115] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5115] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5116 attached , parent_tid=[5116], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5116 [pid 5115] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5116] set_robust_list(0x7fa3182639e0, 24 [pid 5115] <... futex resumed>) = 0 [pid 5115] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5116] <... set_robust_list resumed>) = 0 [pid 5116] memfd_create("syzkaller", 0) = 3 [pid 5116] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [pid 5116] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5116] munmap(0x7fa30fe43000, 524288) = 0 [pid 5116] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5116] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5116] close(3) = 0 [pid 5116] mkdir("./file0", 0777) = 0 [pid 5116] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5116] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5116] chdir("./file0") = 0 [pid 5116] ioctl(4, LOOP_CLR_FD) = 0 [pid 5116] close(4) = 0 [pid 5116] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5115] <... futex resumed>) = 0 [pid 5116] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [pid 5115] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5116] <... open resumed>) = 4 [pid 5115] <... futex resumed>) = 0 [pid 5116] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5115] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5116] <... futex resumed>) = 0 [pid 5115] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5116] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000 [pid 5115] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5116] <... open resumed>) = 5 [pid 5115] <... futex resumed>) = 0 [pid 5115] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5116] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5115] <... futex resumed>) = 0 [pid 5116] <... futex resumed>) = 1 [pid 5115] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5116] openat(-1, "/proc/self/exe", O_RDONLY [pid 5115] <... futex resumed>) = 0 [pid 5116] <... openat resumed>) = 6 [pid 5115] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5116] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5115] <... futex resumed>) = 0 [pid 5116] sendfile(5, 6, NULL, 140737974943952 [pid 5115] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 56.724202][ T5116] loop0: detected capacity change from 0 to 1024 [ 56.734009][ T5116] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 56.744249][ T5116] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 56.755912][ T5116] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5115] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5116] <... sendfile resumed>) = 65536 [pid 5116] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5115] <... futex resumed>) = 0 [pid 5115] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5115] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5116] <... futex resumed>) = 1 [pid 5116] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = -1 ENOSPC (No space left on device) [pid 5116] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5115] <... futex resumed>) = 0 [pid 5116] <... futex resumed>) = 1 [pid 5115] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5116] ftruncate(4, 31 [pid 5115] <... futex resumed>) = 0 [pid 5115] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5116] <... ftruncate resumed>) = 0 [pid 5116] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5115] <... futex resumed>) = 0 [pid 5115] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5116] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [pid 5115] <... futex resumed>) = 0 [pid 5115] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5116] <... open resumed>) = 7 [pid 5116] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5115] <... futex resumed>) = 0 [pid 5115] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5115] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5116] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = 20480 [pid 5116] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5115] <... futex resumed>) = 0 [pid 5116] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5115] exit_group(0) = ? [pid 5116] <... futex resumed>) = ? [pid 5116] +++ exited with 0 +++ [pid 5115] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5115, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./22", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./22", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./22/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./22/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./22/binderfs") = 0 umount2("./22/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./22/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./22/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./22/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./22/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./22/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./22") = 0 mkdir("./23", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5117 ./strace-static-x86_64: Process 5117 attached [pid 5117] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5117] chdir("./23") = 0 [pid 5117] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [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) = 4 [pid 5117] close(3) = 0 [pid 5117] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5117] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5117] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5117] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5117] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5118], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5118 ./strace-static-x86_64: Process 5118 attached [pid 5117] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5117] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5118] set_robust_list(0x7fa3182639e0, 24) = 0 [pid 5118] memfd_create("syzkaller", 0) = 3 [pid 5118] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [pid 5118] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5118] munmap(0x7fa30fe43000, 524288) = 0 [pid 5118] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5118] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5118] close(3) = 0 [pid 5118] mkdir("./file0", 0777) = 0 [pid 5118] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5118] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5118] chdir("./file0") = 0 [pid 5118] ioctl(4, LOOP_CLR_FD) = 0 [pid 5118] close(4) = 0 [pid 5118] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5117] <... futex resumed>) = 0 [pid 5117] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5117] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5118] <... futex resumed>) = 1 [pid 5118] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 4 [pid 5118] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5118] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5117] <... futex resumed>) = 0 [pid 5117] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5118] <... futex resumed>) = 0 [pid 5117] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5118] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = 5 [pid 5118] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5117] <... futex resumed>) = 0 [pid 5118] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5117] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5118] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5117] <... futex resumed>) = 0 [pid 5118] openat(-1, "/proc/self/exe", O_RDONLY [pid 5117] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5118] <... openat resumed>) = 6 [pid 5118] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5117] <... futex resumed>) = 0 [pid 5117] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5118] sendfile(5, 6, NULL, 140737974943952 [pid 5117] <... futex resumed>) = 0 [ 56.915182][ T5118] loop0: detected capacity change from 0 to 1024 [ 56.924728][ T5118] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 56.934965][ T5118] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 56.946665][ T5118] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5117] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5118] <... sendfile resumed>) = 65536 [pid 5118] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5118] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5117] <... futex resumed>) = 0 [pid 5117] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5118] <... futex resumed>) = 0 [pid 5117] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5118] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = -1 ENOSPC (No space left on device) [pid 5118] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5117] <... futex resumed>) = 0 [pid 5117] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5117] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5118] ftruncate(4, 31) = 0 [pid 5118] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5117] <... futex resumed>) = 0 [pid 5117] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5117] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5118] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 7 [pid 5118] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5117] <... futex resumed>) = 0 [pid 5117] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5117] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5118] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = 20480 [pid 5118] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5117] <... futex resumed>) = 0 [pid 5118] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5117] exit_group(0) = ? [pid 5118] <... futex resumed>) = ? [pid 5118] +++ exited with 0 +++ [pid 5117] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5117, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./23", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./23", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./23/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./23/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./23/binderfs") = 0 umount2("./23/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./23/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./23/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./23/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./23/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./23/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./23") = 0 mkdir("./24", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5119 ./strace-static-x86_64: Process 5119 attached [pid 5119] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5119] chdir("./24") = 0 [pid 5119] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5119] setpgid(0, 0) = 0 [pid 5119] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5119] write(3, "1000", 4) = 4 [pid 5119] close(3) = 0 [pid 5119] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5119] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5119] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5119] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5119] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5120 attached , parent_tid=[5120], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5120 [pid 5119] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5119] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5120] set_robust_list(0x7fa3182639e0, 24) = 0 [pid 5120] memfd_create("syzkaller", 0) = 3 [pid 5120] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [pid 5120] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5120] munmap(0x7fa30fe43000, 524288) = 0 [pid 5120] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5120] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5120] close(3) = 0 [pid 5120] mkdir("./file0", 0777) = 0 [pid 5120] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5120] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5120] chdir("./file0") = 0 [pid 5120] ioctl(4, LOOP_CLR_FD) = 0 [pid 5120] close(4) = 0 [pid 5120] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5120] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5119] <... futex resumed>) = 0 [pid 5119] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5119] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5120] <... futex resumed>) = 0 [pid 5120] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 4 [pid 5120] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5119] <... futex resumed>) = 0 [pid 5119] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5120] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000 [pid 5119] <... futex resumed>) = 0 [pid 5119] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5120] <... open resumed>) = 5 [pid 5120] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5119] <... futex resumed>) = 0 [pid 5120] openat(-1, "/proc/self/exe", O_RDONLY [pid 5119] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5120] <... openat resumed>) = 6 [pid 5119] <... futex resumed>) = 0 [pid 5120] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5119] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5119] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5120] sendfile(5, 6, NULL, 140737974943952 [pid 5119] <... futex resumed>) = 0 [ 57.117087][ T5120] loop0: detected capacity change from 0 to 1024 [ 57.128235][ T5120] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 57.138636][ T5120] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 57.150773][ T5120] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5119] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5120] <... sendfile resumed>) = 65536 [pid 5120] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5119] <... futex resumed>) = 0 [pid 5119] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5120] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0 [pid 5119] <... futex resumed>) = 0 [pid 5119] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5120] <... pwritev2 resumed>) = -1 ENOSPC (No space left on device) [pid 5120] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5119] <... futex resumed>) = 0 [pid 5120] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 5119] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5120] ftruncate(4, 31 [pid 5119] <... futex resumed>) = 0 [pid 5119] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5120] <... ftruncate resumed>) = 0 [pid 5120] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5119] <... futex resumed>) = 0 [pid 5119] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5119] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5120] <... futex resumed>) = 1 [pid 5120] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 7 [pid 5120] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5119] <... futex resumed>) = 0 [pid 5119] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5119] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5120] <... futex resumed>) = 1 [pid 5120] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = 20480 [pid 5120] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5119] <... futex resumed>) = 0 [pid 5119] exit_group(0) = ? [pid 5120] <... futex resumed>) = ? [pid 5120] +++ exited with 0 +++ [pid 5119] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5119, si_uid=0, si_status=0, si_utime=0, si_stime=7 /* 0.07 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./24", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./24", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./24/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./24/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./24/binderfs") = 0 umount2("./24/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./24/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./24/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./24/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./24/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./24/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./24") = 0 mkdir("./25", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5121 ./strace-static-x86_64: Process 5121 attached [pid 5121] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5121] chdir("./25") = 0 [pid 5121] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5121] setpgid(0, 0) = 0 [pid 5121] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5121] write(3, "1000", 4) = 4 [pid 5121] close(3) = 0 [pid 5121] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5121] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5121] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5121] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5121] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5122 attached , parent_tid=[5122], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5122 [pid 5122] set_robust_list(0x7fa3182639e0, 24) = 0 [pid 5122] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5121] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5122] <... futex resumed>) = 0 [pid 5121] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5122] memfd_create("syzkaller", 0) = 3 [pid 5122] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [pid 5122] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5122] munmap(0x7fa30fe43000, 524288) = 0 [pid 5122] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5122] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5122] close(3) = 0 [pid 5122] mkdir("./file0", 0777) = 0 [pid 5122] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5122] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5122] chdir("./file0") = 0 [pid 5122] ioctl(4, LOOP_CLR_FD) = 0 [pid 5122] close(4) = 0 [pid 5122] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5121] <... futex resumed>) = 0 [pid 5121] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5121] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5122] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 4 [pid 5122] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5121] <... futex resumed>) = 0 [pid 5121] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5121] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5122] <... futex resumed>) = 1 [pid 5122] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = 5 [pid 5122] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5121] <... futex resumed>) = 0 [pid 5121] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5121] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5122] <... futex resumed>) = 1 [pid 5122] openat(-1, "/proc/self/exe", O_RDONLY) = 6 [pid 5122] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5121] <... futex resumed>) = 0 [pid 5121] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5121] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5122] <... futex resumed>) = 1 [ 57.311663][ T5122] loop0: detected capacity change from 0 to 1024 [ 57.321768][ T5122] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 57.332226][ T5122] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 57.345256][ T5122] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5122] sendfile(5, 6, NULL, 140737974943952) = 65536 [pid 5122] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5121] <... futex resumed>) = 0 [pid 5122] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5121] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5122] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5121] <... futex resumed>) = 0 [pid 5122] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0 [pid 5121] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5122] <... pwritev2 resumed>) = -1 ENOSPC (No space left on device) [pid 5122] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5121] <... futex resumed>) = 0 [pid 5122] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5121] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5122] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5121] <... futex resumed>) = 0 [pid 5122] ftruncate(4, 31 [pid 5121] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5122] <... ftruncate resumed>) = 0 [pid 5122] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5121] <... futex resumed>) = 0 [pid 5122] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5121] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5122] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5121] <... futex resumed>) = 0 [pid 5122] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [pid 5121] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5122] <... open resumed>) = 7 [pid 5122] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5121] <... futex resumed>) = 0 [pid 5121] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5121] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5122] <... futex resumed>) = 1 [pid 5122] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = 20480 [pid 5122] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5121] <... futex resumed>) = 0 [pid 5121] exit_group(0) = ? [pid 5122] <... futex resumed>) = ? [pid 5122] +++ exited with 0 +++ [pid 5121] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5121, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./25", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./25", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./25/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./25/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./25/binderfs") = 0 umount2("./25/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./25/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./25/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./25/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./25/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./25/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./25") = 0 mkdir("./26", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5123 ./strace-static-x86_64: Process 5123 attached [pid 5123] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5123] chdir("./26") = 0 [pid 5123] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5123] setpgid(0, 0) = 0 [pid 5123] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5123] write(3, "1000", 4) = 4 [pid 5123] close(3) = 0 [pid 5123] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5123] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5123] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5123] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5123] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5124], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5124 ./strace-static-x86_64: Process 5124 attached [pid 5124] set_robust_list(0x7fa3182639e0, 24 [pid 5123] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5124] <... set_robust_list resumed>) = 0 [pid 5124] memfd_create("syzkaller", 0 [pid 5123] <... futex resumed>) = 0 [pid 5123] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5124] <... memfd_create resumed>) = 3 [pid 5124] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [pid 5124] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5124] munmap(0x7fa30fe43000, 524288) = 0 [pid 5124] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [ 57.436849][ T27] kauditd_printk_skb: 67 callbacks suppressed [ 57.436863][ T27] audit: type=1800 audit(1672320157.215:79): pid=5122 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor164" name="file1" dev="loop0" ino=839 res=0 errno=0 [pid 5124] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5124] close(3) = 0 [pid 5124] mkdir("./file0", 0777) = 0 [pid 5124] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5124] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5124] chdir("./file0") = 0 [pid 5124] ioctl(4, LOOP_CLR_FD) = 0 [pid 5124] close(4) = 0 [pid 5124] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5123] <... futex resumed>) = 0 [pid 5123] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5123] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5124] <... futex resumed>) = 1 [ 57.515061][ T5124] loop0: detected capacity change from 0 to 1024 [ 57.525481][ T5124] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 57.535913][ T5124] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 57.548390][ T5124] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5124] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 4 [pid 5124] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5123] <... futex resumed>) = 0 [pid 5123] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5123] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5124] <... futex resumed>) = 1 [pid 5124] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = 5 [pid 5124] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5123] <... futex resumed>) = 0 [pid 5123] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5123] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5124] <... futex resumed>) = 1 [pid 5124] openat(-1, "/proc/self/exe", O_RDONLY) = 6 [pid 5124] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5123] <... futex resumed>) = 0 [pid 5123] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5123] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5124] <... futex resumed>) = 1 [ 57.561565][ T27] audit: type=1800 audit(1672320157.335:80): pid=5124 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor164" name="file1" dev="loop0" ino=839 res=0 errno=0 [pid 5124] sendfile(5, 6, NULL, 140737974943952) = 65536 [pid 5124] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5123] <... futex resumed>) = 0 [pid 5123] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5123] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5124] <... futex resumed>) = 1 [pid 5124] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = -1 ENOSPC (No space left on device) [pid 5124] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5123] <... futex resumed>) = 0 [pid 5123] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5123] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5124] <... futex resumed>) = 1 [pid 5124] ftruncate(4, 31) = 0 [pid 5124] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5123] <... futex resumed>) = 0 [pid 5123] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5123] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5124] <... futex resumed>) = 1 [pid 5124] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 7 [pid 5124] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5123] <... futex resumed>) = 0 [pid 5123] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5123] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5124] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = 20480 [pid 5124] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5123] <... futex resumed>) = 0 [pid 5124] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5123] exit_group(0) = ? [pid 5124] <... futex resumed>) = ? [pid 5124] +++ exited with 0 +++ [pid 5123] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5123, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./26", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./26", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./26/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./26/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./26/binderfs") = 0 umount2("./26/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [ 57.597679][ T27] audit: type=1800 audit(1672320157.345:81): pid=5124 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor164" name="bus" dev="loop0" ino=861 res=0 errno=0 [ 57.634630][ T27] audit: type=1800 audit(1672320157.415:82): pid=5124 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor164" name="file1" dev="loop0" ino=839 res=0 errno=0 umount2("./26/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./26/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./26/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./26/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./26/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./26") = 0 mkdir("./27", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5125 ./strace-static-x86_64: Process 5125 attached [pid 5125] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5125] chdir("./27") = 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") = 0 [pid 5125] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5125] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5125] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5125] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5126 attached , parent_tid=[5126], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5126 [pid 5126] set_robust_list(0x7fa3182639e0, 24 [pid 5125] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5126] <... set_robust_list resumed>) = 0 [pid 5125] <... futex resumed>) = 0 [pid 5125] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5126] memfd_create("syzkaller", 0) = 3 [pid 5126] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [pid 5126] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5126] munmap(0x7fa30fe43000, 524288) = 0 [pid 5126] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5126] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5126] close(3) = 0 [pid 5126] mkdir("./file0", 0777) = 0 [pid 5126] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5126] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5126] chdir("./file0") = 0 [pid 5126] ioctl(4, LOOP_CLR_FD) = 0 [pid 5126] close(4) = 0 [pid 5126] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5125] <... futex resumed>) = 0 [pid 5126] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5125] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5126] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5125] <... futex resumed>) = 0 [pid 5126] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [ 57.724720][ T5126] loop0: detected capacity change from 0 to 1024 [ 57.735720][ T5126] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 57.745942][ T5126] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 57.757636][ T5126] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5125] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5126] <... open resumed>) = 4 [pid 5126] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5125] <... futex resumed>) = 0 [pid 5126] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000 [pid 5125] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5125] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5126] <... open resumed>) = 5 [pid 5126] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5125] <... futex resumed>) = 0 [pid 5126] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5125] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5126] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5125] <... futex resumed>) = 0 [pid 5126] openat(-1, "/proc/self/exe", O_RDONLY [pid 5125] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5126] <... openat resumed>) = 6 [pid 5126] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5125] <... futex resumed>) = 0 [pid 5126] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5125] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5126] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5125] <... futex resumed>) = 0 [pid 5126] sendfile(5, 6, NULL, 140737974943952 [pid 5125] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5126] <... sendfile resumed>) = 65536 [pid 5126] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5125] <... futex resumed>) = 0 [pid 5125] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5125] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5126] <... futex resumed>) = 1 [pid 5126] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = -1 ENOSPC (No space left on device) [pid 5126] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5125] <... futex resumed>) = 0 [pid 5125] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5125] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5126] <... futex resumed>) = 1 [pid 5126] ftruncate(4, 31) = 0 [pid 5126] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5125] <... futex resumed>) = 0 [pid 5125] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5125] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5126] <... futex resumed>) = 1 [ 57.778133][ T27] audit: type=1800 audit(1672320157.555:83): pid=5126 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor164" name="file1" dev="loop0" ino=839 res=0 errno=0 [ 57.799206][ T27] audit: type=1800 audit(1672320157.555:84): pid=5126 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor164" name="bus" dev="loop0" ino=861 res=0 errno=0 [pid 5126] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 7 [pid 5126] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5126] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5125] <... futex resumed>) = 0 [pid 5125] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5125] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5126] <... futex resumed>) = 0 [pid 5126] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = 20480 [pid 5126] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5125] <... futex resumed>) = 0 [pid 5126] <... futex resumed>) = 1 [pid 5125] exit_group(0) = ? [pid 5126] +++ exited with 0 +++ [pid 5125] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5125, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- umount2("./27", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./27", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./27/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./27/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./27/binderfs") = 0 umount2("./27/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./27/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./27/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./27/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./27/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./27/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./27") = 0 mkdir("./28", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5127 ./strace-static-x86_64: Process 5127 attached [pid 5127] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5127] chdir("./28") = 0 [pid 5127] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5127] setpgid(0, 0) = 0 [pid 5127] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5127] write(3, "1000", 4) = 4 [pid 5127] close(3) = 0 [pid 5127] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5127] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5127] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [ 57.857224][ T27] audit: type=1800 audit(1672320157.635:85): pid=5126 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor164" name="file1" dev="loop0" ino=839 res=0 errno=0 [pid 5127] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5127] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5128 attached , parent_tid=[5128], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5128 [pid 5127] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5127] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5128] set_robust_list(0x7fa3182639e0, 24) = 0 [pid 5128] memfd_create("syzkaller", 0) = 3 [pid 5128] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [pid 5128] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5128] munmap(0x7fa30fe43000, 524288) = 0 [pid 5128] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5128] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5128] close(3) = 0 [pid 5128] mkdir("./file0", 0777) = 0 [pid 5128] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5128] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5128] chdir("./file0") = 0 [pid 5128] ioctl(4, LOOP_CLR_FD) = 0 [pid 5128] close(4) = 0 [pid 5128] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5127] <... futex resumed>) = 0 [pid 5128] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [ 57.933927][ T5128] loop0: detected capacity change from 0 to 1024 [ 57.943552][ T5128] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 57.953990][ T5128] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 57.966361][ T5128] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5127] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5127] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5128] <... open resumed>) = 4 [pid 5128] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5127] <... futex resumed>) = 0 [pid 5128] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5127] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5128] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5127] <... futex resumed>) = 0 [pid 5127] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5128] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = 5 [pid 5128] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5127] <... futex resumed>) = 0 [pid 5128] openat(-1, "/proc/self/exe", O_RDONLY [pid 5127] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5128] <... openat resumed>) = 6 [pid 5127] <... futex resumed>) = 0 [pid 5128] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5127] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5128] <... futex resumed>) = 0 [pid 5127] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5128] sendfile(5, 6, NULL, 140737974943952 [pid 5127] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 57.979315][ T27] audit: type=1800 audit(1672320157.755:86): pid=5128 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor164" name="file1" dev="loop0" ino=839 res=0 errno=0 [pid 5127] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5128] <... sendfile resumed>) = 65536 [pid 5128] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5127] <... futex resumed>) = 0 [pid 5127] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5127] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5128] <... futex resumed>) = 1 [pid 5128] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = -1 ENOSPC (No space left on device) [pid 5128] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5127] <... futex resumed>) = 0 [ 58.023092][ T27] audit: type=1800 audit(1672320157.795:87): pid=5128 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor164" name="bus" dev="loop0" ino=861 res=0 errno=0 [pid 5127] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5127] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5128] ftruncate(4, 31) = 0 [pid 5128] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5127] <... futex resumed>) = 0 [pid 5127] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5127] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5128] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 7 [pid 5128] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5128] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5127] <... futex resumed>) = 0 [pid 5127] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5128] <... futex resumed>) = 0 [pid 5127] <... futex resumed>) = 1 [pid 5128] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0 [pid 5127] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5128] <... pwritev2 resumed>) = 20480 [pid 5128] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5127] <... futex resumed>) = 0 [pid 5128] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5127] exit_group(0 [pid 5128] <... futex resumed>) = ? [pid 5127] <... exit_group resumed>) = ? [pid 5128] +++ exited with 0 +++ [pid 5127] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5127, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./28", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./28", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./28/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./28/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./28/binderfs") = 0 [ 58.076754][ T27] audit: type=1800 audit(1672320157.855:88): pid=5128 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor164" name="file1" dev="loop0" ino=839 res=0 errno=0 umount2("./28/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./28/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./28/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./28/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./28/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./28/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./28") = 0 mkdir("./29", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5129 ./strace-static-x86_64: Process 5129 attached [pid 5129] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5129] chdir("./29") = 0 [pid 5129] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5129] setpgid(0, 0) = 0 [pid 5129] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5129] write(3, "1000", 4) = 4 [pid 5129] close(3) = 0 [pid 5129] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5129] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5129] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5129] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5129] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5130], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5130 [pid 5129] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5129] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5130 attached [pid 5130] set_robust_list(0x7fa3182639e0, 24) = 0 [pid 5130] memfd_create("syzkaller", 0) = 3 [pid 5130] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [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"..., 524288) = 524288 [pid 5130] munmap(0x7fa30fe43000, 524288) = 0 [pid 5130] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5130] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5130] close(3) = 0 [pid 5130] mkdir("./file0", 0777) = 0 [pid 5130] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5130] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5130] chdir("./file0") = 0 [pid 5130] ioctl(4, LOOP_CLR_FD) = 0 [pid 5130] close(4) = 0 [pid 5130] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5130] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5129] <... futex resumed>) = 0 [pid 5129] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5129] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5130] <... futex resumed>) = 0 [pid 5130] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 4 [pid 5130] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5129] <... futex resumed>) = 0 [pid 5129] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5130] <... futex resumed>) = 1 [pid 5129] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5130] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = 5 [pid 5130] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5129] <... futex resumed>) = 0 [ 58.246285][ T5130] loop0: detected capacity change from 0 to 1024 [ 58.256532][ T5130] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 58.266848][ T5130] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 58.279258][ T5130] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5129] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5129] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5130] <... futex resumed>) = 1 [pid 5130] openat(-1, "/proc/self/exe", O_RDONLY) = 6 [pid 5130] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5129] <... futex resumed>) = 0 [pid 5130] sendfile(5, 6, NULL, 140737974943952 [pid 5129] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5129] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5130] <... sendfile resumed>) = 65536 [pid 5130] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5129] <... futex resumed>) = 0 [pid 5130] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5129] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5129] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5130] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5130] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = -1 ENOSPC (No space left on device) [pid 5130] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5129] <... futex resumed>) = 0 [pid 5130] <... futex resumed>) = 1 [pid 5130] ftruncate(4, 31 [pid 5129] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5129] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5130] <... ftruncate resumed>) = 0 [pid 5130] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5129] <... futex resumed>) = 0 [pid 5129] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5129] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5130] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 7 [pid 5130] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5129] <... futex resumed>) = 0 [pid 5129] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5129] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5130] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = 20480 [pid 5130] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5129] <... futex resumed>) = 0 [pid 5129] exit_group(0) = ? [pid 5130] +++ exited with 0 +++ [pid 5129] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5129, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./29", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./29", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./29/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./29/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./29/binderfs") = 0 umount2("./29/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./29/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./29/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./29/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./29/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./29/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./29") = 0 mkdir("./30", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5131 ./strace-static-x86_64: Process 5131 attached [pid 5131] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5131] chdir("./30") = 0 [pid 5131] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5131] setpgid(0, 0) = 0 [pid 5131] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5131] write(3, "1000", 4) = 4 [pid 5131] close(3) = 0 [pid 5131] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5131] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5131] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5131] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5131] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5132], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5132 [pid 5131] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5131] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5132 attached [pid 5132] set_robust_list(0x7fa3182639e0, 24) = 0 [pid 5132] memfd_create("syzkaller", 0) = 3 [pid 5132] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [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"..., 524288) = 524288 [pid 5132] munmap(0x7fa30fe43000, 524288) = 0 [pid 5132] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5132] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5132] close(3) = 0 [pid 5132] mkdir("./file0", 0777) = 0 [pid 5132] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5132] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5132] chdir("./file0") = 0 [pid 5132] ioctl(4, LOOP_CLR_FD) = 0 [pid 5132] close(4) = 0 [pid 5132] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5132] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5131] <... futex resumed>) = 0 [pid 5131] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5132] <... futex resumed>) = 0 [pid 5131] <... futex resumed>) = 1 [pid 5132] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [pid 5131] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5132] <... open resumed>) = 4 [pid 5132] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5131] <... futex resumed>) = 0 [pid 5132] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5131] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5132] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5131] <... futex resumed>) = 0 [pid 5131] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5132] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = 5 [pid 5132] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5131] <... futex resumed>) = 0 [pid 5132] openat(-1, "/proc/self/exe", O_RDONLY [pid 5131] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5132] <... openat resumed>) = 6 [pid 5131] <... futex resumed>) = 0 [pid 5132] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5131] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5132] <... futex resumed>) = 0 [pid 5131] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5132] sendfile(5, 6, NULL, 140737974943952 [pid 5131] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 58.455960][ T5132] loop0: detected capacity change from 0 to 1024 [ 58.466121][ T5132] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 58.476396][ T5132] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 58.488323][ T5132] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5131] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5132] <... sendfile resumed>) = 65536 [pid 5132] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5132] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5131] <... futex resumed>) = 0 [pid 5131] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5132] <... futex resumed>) = 0 [pid 5131] <... futex resumed>) = 1 [pid 5131] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5132] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = -1 ENOSPC (No space left on device) [pid 5132] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5131] <... futex resumed>) = 0 [pid 5131] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5131] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5132] <... futex resumed>) = 1 [pid 5132] ftruncate(4, 31) = 0 [pid 5132] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5131] <... futex resumed>) = 0 [pid 5131] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5131] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5132] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 7 [pid 5132] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5131] <... futex resumed>) = 0 [pid 5131] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5131] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5132] <... futex resumed>) = 1 [pid 5132] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = 20480 [pid 5132] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5131] <... futex resumed>) = 0 [pid 5132] <... futex resumed>) = 1 [pid 5131] exit_group(0) = ? [pid 5132] +++ exited with 0 +++ [pid 5131] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5131, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- umount2("./30", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./30", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./30/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./30/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./30/binderfs") = 0 umount2("./30/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./30/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./30/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./30/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./30/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./30/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./30") = 0 mkdir("./31", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5133 ./strace-static-x86_64: Process 5133 attached [pid 5133] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5133] chdir("./31") = 0 [pid 5133] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5133] setpgid(0, 0) = 0 [pid 5133] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5133] write(3, "1000", 4) = 4 [pid 5133] close(3) = 0 [pid 5133] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5133] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5133] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5133] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5133] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5134], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5134 [pid 5133] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5133] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5134 attached [pid 5134] set_robust_list(0x7fa3182639e0, 24) = 0 [pid 5134] memfd_create("syzkaller", 0) = 3 [pid 5134] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [pid 5134] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5134] munmap(0x7fa30fe43000, 524288) = 0 [pid 5134] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5134] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5134] close(3) = 0 [pid 5134] mkdir("./file0", 0777) = 0 [pid 5134] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5134] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5134] chdir("./file0") = 0 [pid 5134] ioctl(4, LOOP_CLR_FD) = 0 [pid 5134] close(4) = 0 [pid 5134] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5133] <... futex resumed>) = 0 [pid 5134] <... futex resumed>) = 1 [pid 5133] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5134] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [pid 5133] <... futex resumed>) = 0 [pid 5133] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5134] <... open resumed>) = 4 [pid 5134] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5133] <... futex resumed>) = 0 [pid 5133] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5133] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5134] <... futex resumed>) = 1 [pid 5134] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = 5 [pid 5134] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5133] <... futex resumed>) = 0 [pid 5133] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5133] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5134] <... futex resumed>) = 1 [pid 5134] openat(-1, "/proc/self/exe", O_RDONLY) = 6 [pid 5134] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5133] <... futex resumed>) = 0 [pid 5133] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5133] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5134] <... futex resumed>) = 1 [ 58.628299][ T5134] loop0: detected capacity change from 0 to 1024 [ 58.637407][ T5134] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 58.647858][ T5134] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 58.660821][ T5134] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5134] sendfile(5, 6, NULL, 140737974943952) = 65536 [pid 5134] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5133] <... futex resumed>) = 0 [pid 5134] <... futex resumed>) = 1 [pid 5134] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0 [pid 5133] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5133] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5134] <... pwritev2 resumed>) = -1 ENOSPC (No space left on device) [pid 5134] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5133] <... futex resumed>) = 0 [pid 5134] ftruncate(4, 31 [pid 5133] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5134] <... ftruncate resumed>) = 0 [pid 5133] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5134] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5133] <... futex resumed>) = 0 [pid 5134] <... futex resumed>) = 1 [pid 5134] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [pid 5133] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5133] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5134] <... open resumed>) = 7 [pid 5134] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5133] <... futex resumed>) = 0 [pid 5134] <... futex resumed>) = 1 [pid 5133] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5133] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5134] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = 20480 [pid 5134] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5133] <... futex resumed>) = 0 [pid 5134] <... futex resumed>) = 1 [pid 5133] exit_group(0) = ? [pid 5134] +++ exited with 0 +++ [pid 5133] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5133, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./31", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./31", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./31/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./31/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./31/binderfs") = 0 umount2("./31/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./31/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./31/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./31/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./31/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./31/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./31") = 0 mkdir("./32", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5135 ./strace-static-x86_64: Process 5135 attached [pid 5135] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5135] chdir("./32") = 0 [pid 5135] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5135] setpgid(0, 0) = 0 [pid 5135] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5135] write(3, "1000", 4) = 4 [pid 5135] close(3) = 0 [pid 5135] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5135] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5135] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5135] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5135] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5136], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5136 ./strace-static-x86_64: Process 5136 attached [pid 5135] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5135] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5136] set_robust_list(0x7fa3182639e0, 24) = 0 [pid 5136] memfd_create("syzkaller", 0) = 3 [pid 5136] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [pid 5136] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5136] munmap(0x7fa30fe43000, 524288) = 0 [pid 5136] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5136] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5136] close(3) = 0 [pid 5136] mkdir("./file0", 0777) = 0 [pid 5136] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5136] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5136] chdir("./file0") = 0 [pid 5136] ioctl(4, LOOP_CLR_FD) = 0 [pid 5136] close(4) = 0 [pid 5136] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5136] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5135] <... futex resumed>) = 0 [pid 5135] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5136] <... futex resumed>) = 0 [pid 5135] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5136] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 4 [pid 5136] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5135] <... futex resumed>) = 0 [pid 5136] <... futex resumed>) = 1 [pid 5135] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5136] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000 [pid 5135] <... futex resumed>) = 0 [pid 5135] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5136] <... open resumed>) = 5 [pid 5136] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5135] <... futex resumed>) = 0 [pid 5135] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5136] <... futex resumed>) = 1 [pid 5135] <... futex resumed>) = 0 [pid 5136] openat(-1, "/proc/self/exe", O_RDONLY [pid 5135] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5136] <... openat resumed>) = 6 [pid 5136] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5135] <... futex resumed>) = 0 [pid 5136] sendfile(5, 6, NULL, 140737974943952 [pid 5135] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 58.845663][ T5136] loop0: detected capacity change from 0 to 1024 [ 58.854940][ T5136] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 58.865296][ T5136] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 58.877557][ T5136] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5135] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5136] <... sendfile resumed>) = 65536 [pid 5136] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5135] <... futex resumed>) = 0 [pid 5136] <... futex resumed>) = 1 [pid 5135] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5136] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0 [pid 5135] <... futex resumed>) = 0 [pid 5135] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5136] <... pwritev2 resumed>) = -1 ENOSPC (No space left on device) [pid 5136] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5135] <... futex resumed>) = 0 [pid 5136] <... futex resumed>) = 1 [pid 5135] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5135] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5136] ftruncate(4, 31) = 0 [pid 5136] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5135] <... futex resumed>) = 0 [pid 5136] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [pid 5135] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5135] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5136] <... open resumed>) = 7 [pid 5136] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5135] <... futex resumed>) = 0 [pid 5135] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5136] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0 [pid 5135] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5136] <... pwritev2 resumed>) = 20480 [pid 5136] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5135] <... futex resumed>) = 0 [pid 5135] exit_group(0) = ? [pid 5136] +++ exited with 0 +++ [pid 5135] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5135, si_uid=0, si_status=0, si_utime=0, si_stime=7 /* 0.07 s */} --- umount2("./32", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./32", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./32/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./32/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./32/binderfs") = 0 umount2("./32/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./32/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./32/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./32/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./32/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./32/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./32") = 0 mkdir("./33", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5137 ./strace-static-x86_64: Process 5137 attached [pid 5137] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5137] chdir("./33") = 0 [pid 5137] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5137] setpgid(0, 0) = 0 [pid 5137] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5137] write(3, "1000", 4) = 4 [pid 5137] close(3) = 0 [pid 5137] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5137] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5137] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5137] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5137] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5138], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5138 [pid 5137] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5137] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5138 attached [pid 5138] set_robust_list(0x7fa3182639e0, 24) = 0 [pid 5138] memfd_create("syzkaller", 0) = 3 [pid 5138] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [pid 5138] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5138] munmap(0x7fa30fe43000, 524288) = 0 [pid 5138] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5138] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5138] close(3) = 0 [pid 5138] mkdir("./file0", 0777) = 0 [pid 5138] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5138] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5138] chdir("./file0") = 0 [pid 5138] ioctl(4, LOOP_CLR_FD) = 0 [pid 5138] close(4) = 0 [pid 5138] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5137] <... futex resumed>) = 0 [pid 5138] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [pid 5137] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5138] <... open resumed>) = 4 [pid 5137] <... futex resumed>) = 0 [pid 5138] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5137] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5138] <... futex resumed>) = 0 [pid 5137] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5138] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000 [pid 5137] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5138] <... open resumed>) = 5 [pid 5137] <... futex resumed>) = 0 [pid 5137] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5138] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5137] <... futex resumed>) = 0 [pid 5137] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5138] <... futex resumed>) = 1 [pid 5137] <... futex resumed>) = 0 [pid 5138] openat(-1, "/proc/self/exe", O_RDONLY [pid 5137] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5138] <... openat resumed>) = 6 [pid 5138] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5137] <... futex resumed>) = 0 [pid 5138] sendfile(5, 6, NULL, 140737974943952 [pid 5137] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 59.054775][ T5138] loop0: detected capacity change from 0 to 1024 [ 59.064087][ T5138] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 59.074288][ T5138] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 59.085821][ T5138] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5137] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5138] <... sendfile resumed>) = 65536 [pid 5138] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5137] <... futex resumed>) = 0 [pid 5137] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5137] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5138] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = -1 ENOSPC (No space left on device) [pid 5138] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5137] <... futex resumed>) = 0 [pid 5137] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5137] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5138] <... futex resumed>) = 1 [pid 5138] ftruncate(4, 31) = 0 [pid 5138] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5137] <... futex resumed>) = 0 [pid 5137] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5137] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5138] <... futex resumed>) = 1 [pid 5138] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 7 [pid 5138] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5137] <... futex resumed>) = 0 [pid 5137] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5137] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5138] <... futex resumed>) = 1 [pid 5138] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = 20480 [pid 5138] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5137] <... futex resumed>) = 0 [pid 5138] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5137] exit_group(0 [pid 5138] <... futex resumed>) = ? [pid 5137] <... exit_group resumed>) = ? [pid 5138] +++ exited with 0 +++ [pid 5137] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5137, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./33", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./33", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./33/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./33/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./33/binderfs") = 0 umount2("./33/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./33/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./33/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./33/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./33/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./33/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./33") = 0 mkdir("./34", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5139 attached [pid 5139] set_robust_list(0x55555702f5e0, 24 [pid 5068] <... clone resumed>, child_tidptr=0x55555702f5d0) = 5139 [pid 5139] <... set_robust_list resumed>) = 0 [pid 5139] chdir("./34") = 0 [pid 5139] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5139] setpgid(0, 0) = 0 [pid 5139] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5139] write(3, "1000", 4) = 4 [pid 5139] close(3) = 0 [pid 5139] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5139] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5139] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5139] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5139] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5140 attached [pid 5140] set_robust_list(0x7fa3182639e0, 24) = 0 [pid 5140] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5139] <... clone resumed>, parent_tid=[5140], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5140 [pid 5139] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5140] <... futex resumed>) = 0 [pid 5140] memfd_create("syzkaller", 0 [pid 5139] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5140] <... memfd_create resumed>) = 3 [pid 5140] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [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"..., 524288) = 524288 [pid 5140] munmap(0x7fa30fe43000, 524288) = 0 [pid 5140] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5140] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5140] close(3) = 0 [pid 5140] mkdir("./file0", 0777) = 0 [pid 5140] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5140] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5140] chdir("./file0") = 0 [pid 5140] ioctl(4, LOOP_CLR_FD) = 0 [pid 5140] close(4) = 0 [pid 5140] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5139] <... futex resumed>) = 0 [pid 5139] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5139] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5140] <... futex resumed>) = 1 [pid 5140] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 4 [pid 5140] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5139] <... futex resumed>) = 0 [pid 5139] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5139] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5140] <... futex resumed>) = 1 [pid 5140] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = 5 [pid 5140] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5139] <... futex resumed>) = 0 [pid 5139] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5139] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5140] <... futex resumed>) = 1 [pid 5140] openat(-1, "/proc/self/exe", O_RDONLY) = 6 [pid 5140] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5139] <... futex resumed>) = 0 [pid 5139] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5139] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5140] <... futex resumed>) = 1 [ 59.227771][ T5140] loop0: detected capacity change from 0 to 1024 [ 59.237756][ T5140] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 59.248101][ T5140] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 59.260272][ T5140] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5140] sendfile(5, 6, NULL, 140737974943952) = 65536 [pid 5140] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5140] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5139] <... futex resumed>) = 0 [pid 5139] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5140] <... futex resumed>) = 0 [pid 5140] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0 [pid 5139] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5140] <... pwritev2 resumed>) = -1 ENOSPC (No space left on device) [pid 5140] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5139] <... futex resumed>) = 0 [pid 5140] <... futex resumed>) = 1 [pid 5139] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5140] ftruncate(4, 31 [pid 5139] <... futex resumed>) = 0 [pid 5139] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5140] <... ftruncate resumed>) = 0 [pid 5140] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5139] <... futex resumed>) = 0 [pid 5140] <... futex resumed>) = 1 [pid 5139] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5140] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [pid 5139] <... futex resumed>) = 0 [pid 5139] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5140] <... open resumed>) = 7 [pid 5140] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5139] <... futex resumed>) = 0 [pid 5140] <... futex resumed>) = 1 [pid 5139] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5140] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0 [pid 5139] <... futex resumed>) = 0 [pid 5139] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5140] <... pwritev2 resumed>) = 20480 [pid 5140] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5139] <... futex resumed>) = 0 [pid 5140] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5139] exit_group(0 [pid 5140] <... futex resumed>) = ? [pid 5139] <... exit_group resumed>) = ? [pid 5140] +++ exited with 0 +++ [pid 5139] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5139, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- umount2("./34", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./34", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./34/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./34/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./34/binderfs") = 0 umount2("./34/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./34/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./34/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./34/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./34/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./34/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./34") = 0 mkdir("./35", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5141 ./strace-static-x86_64: Process 5141 attached [pid 5141] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5141] chdir("./35") = 0 [pid 5141] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5141] setpgid(0, 0) = 0 [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] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5141] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5141] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5141] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5142 attached [pid 5142] set_robust_list(0x7fa3182639e0, 24 [pid 5141] <... clone resumed>, parent_tid=[5142], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5142 [pid 5142] <... set_robust_list resumed>) = 0 [pid 5141] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5141] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5142] memfd_create("syzkaller", 0) = 3 [pid 5142] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [pid 5142] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5142] munmap(0x7fa30fe43000, 524288) = 0 [pid 5142] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5142] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5142] close(3) = 0 [pid 5142] mkdir("./file0", 0777) = 0 [pid 5142] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5142] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5142] chdir("./file0") = 0 [pid 5142] ioctl(4, LOOP_CLR_FD) = 0 [pid 5142] close(4) = 0 [pid 5142] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5141] <... futex resumed>) = 0 [pid 5141] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5141] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5142] <... futex resumed>) = 1 [pid 5142] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 4 [pid 5142] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5141] <... futex resumed>) = 0 [pid 5142] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000 [pid 5141] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5141] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5142] <... open resumed>) = 5 [pid 5142] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5141] <... futex resumed>) = 0 [pid 5141] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5141] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5142] <... futex resumed>) = 1 [pid 5142] openat(-1, "/proc/self/exe", O_RDONLY) = 6 [pid 5142] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5141] <... futex resumed>) = 0 [pid 5141] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5141] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5142] <... futex resumed>) = 1 [ 59.422025][ T5142] loop0: detected capacity change from 0 to 1024 [ 59.431343][ T5142] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 59.441805][ T5142] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 59.453736][ T5142] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5142] sendfile(5, 6, NULL, 140737974943952) = 65536 [pid 5142] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5141] <... futex resumed>) = 0 [pid 5142] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5141] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5142] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5141] <... futex resumed>) = 0 [pid 5142] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0 [pid 5141] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5142] <... pwritev2 resumed>) = -1 ENOSPC (No space left on device) [pid 5142] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5141] <... futex resumed>) = 0 [pid 5141] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5141] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5142] ftruncate(4, 31) = 0 [pid 5142] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5141] <... futex resumed>) = 0 [pid 5141] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5141] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5142] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 7 [pid 5142] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5141] <... futex resumed>) = 0 [pid 5141] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5141] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5142] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = 20480 [pid 5142] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5141] <... futex resumed>) = 0 [pid 5142] <... futex resumed>) = 1 [pid 5142] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5141] exit_group(0 [pid 5142] <... futex resumed>) = ? [pid 5141] <... exit_group resumed>) = ? [pid 5142] +++ exited with 0 +++ [pid 5141] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5141, si_uid=0, si_status=0, si_utime=0, si_stime=7 /* 0.07 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./35", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./35", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./35/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./35/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./35/binderfs") = 0 umount2("./35/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./35/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./35/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./35/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./35/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./35/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./35") = 0 mkdir("./36", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5143 ./strace-static-x86_64: Process 5143 attached [pid 5143] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5143] chdir("./36") = 0 [pid 5143] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5143] setpgid(0, 0) = 0 [pid 5143] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5143] write(3, "1000", 4) = 4 [pid 5143] close(3) = 0 [pid 5143] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5143] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5143] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5143] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5143] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5144], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5144 [pid 5143] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5143] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5144 attached [pid 5144] set_robust_list(0x7fa3182639e0, 24) = 0 [pid 5144] memfd_create("syzkaller", 0) = 3 [pid 5144] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [pid 5144] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5144] munmap(0x7fa30fe43000, 524288) = 0 [pid 5144] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5144] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5144] close(3) = 0 [pid 5144] mkdir("./file0", 0777) = 0 [pid 5144] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5144] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5144] chdir("./file0") = 0 [pid 5144] ioctl(4, LOOP_CLR_FD) = 0 [pid 5144] close(4) = 0 [pid 5144] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5143] <... futex resumed>) = 0 [pid 5143] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5143] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5144] <... futex resumed>) = 1 [pid 5144] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 4 [pid 5144] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5143] <... futex resumed>) = 0 [pid 5143] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5143] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5144] <... futex resumed>) = 1 [pid 5144] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = 5 [pid 5144] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5143] <... futex resumed>) = 0 [pid 5143] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5143] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5144] <... futex resumed>) = 1 [pid 5144] openat(-1, "/proc/self/exe", O_RDONLY) = 6 [pid 5144] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5143] <... futex resumed>) = 0 [pid 5143] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5143] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5144] <... futex resumed>) = 1 [ 59.618188][ T5144] loop0: detected capacity change from 0 to 1024 [ 59.628616][ T5144] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 59.639292][ T5144] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 59.651607][ T5144] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5144] sendfile(5, 6, NULL, 140737974943952) = 65536 [pid 5144] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5143] <... futex resumed>) = 0 [pid 5144] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5143] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5143] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5144] <... futex resumed>) = 0 [pid 5144] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = -1 ENOSPC (No space left on device) [pid 5144] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5143] <... futex resumed>) = 0 [pid 5143] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5143] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5144] ftruncate(4, 31) = 0 [pid 5144] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5143] <... futex resumed>) = 0 [pid 5143] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5143] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5144] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 7 [pid 5144] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5143] <... futex resumed>) = 0 [pid 5143] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5143] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5144] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = 20480 [pid 5144] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5143] <... futex resumed>) = 0 [pid 5143] exit_group(0) = ? [pid 5144] +++ exited with 0 +++ [pid 5143] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5143, si_uid=0, si_status=0, si_utime=0, si_stime=7 /* 0.07 s */} --- umount2("./36", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./36", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./36/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./36/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./36/binderfs") = 0 umount2("./36/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./36/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./36/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./36/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./36/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./36/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./36") = 0 mkdir("./37", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5145 ./strace-static-x86_64: Process 5145 attached [pid 5145] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5145] chdir("./37") = 0 [pid 5145] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5145] setpgid(0, 0) = 0 [pid 5145] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5145] write(3, "1000", 4) = 4 [pid 5145] close(3) = 0 [pid 5145] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5145] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5145] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5145] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5145] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5146 attached [pid 5146] set_robust_list(0x7fa3182639e0, 24) = 0 [pid 5146] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5145] <... clone resumed>, parent_tid=[5146], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5146 [pid 5145] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5146] <... futex resumed>) = 0 [pid 5145] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5146] memfd_create("syzkaller", 0) = 3 [pid 5146] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [pid 5146] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5146] munmap(0x7fa30fe43000, 524288) = 0 [pid 5146] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5146] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5146] close(3) = 0 [pid 5146] mkdir("./file0", 0777) = 0 [pid 5146] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5146] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5146] chdir("./file0") = 0 [pid 5146] ioctl(4, LOOP_CLR_FD) = 0 [pid 5146] close(4) = 0 [pid 5146] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5145] <... futex resumed>) = 0 [pid 5145] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5145] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5146] <... futex resumed>) = 1 [pid 5146] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 4 [pid 5146] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5146] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5145] <... futex resumed>) = 0 [pid 5145] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5145] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5146] <... futex resumed>) = 0 [pid 5146] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = 5 [pid 5146] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5145] <... futex resumed>) = 0 [pid 5145] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5146] openat(-1, "/proc/self/exe", O_RDONLY [pid 5145] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5146] <... openat resumed>) = 6 [pid 5146] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5145] <... futex resumed>) = 0 [pid 5146] sendfile(5, 6, NULL, 140737974943952 [pid 5145] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 59.820338][ T5146] loop0: detected capacity change from 0 to 1024 [ 59.830585][ T5146] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 59.840905][ T5146] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 59.852822][ T5146] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5145] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5146] <... sendfile resumed>) = 65536 [pid 5146] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5145] <... futex resumed>) = 0 [pid 5145] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5145] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5146] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = -1 ENOSPC (No space left on device) [pid 5146] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5145] <... futex resumed>) = 0 [pid 5146] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5145] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5146] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5146] ftruncate(4, 31 [pid 5145] <... futex resumed>) = 0 [pid 5145] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5146] <... ftruncate resumed>) = 0 [pid 5146] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5146] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5145] <... futex resumed>) = 0 [pid 5145] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5146] <... futex resumed>) = 0 [pid 5145] <... futex resumed>) = 1 [pid 5146] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [pid 5145] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5146] <... open resumed>) = 7 [pid 5146] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5145] <... futex resumed>) = 0 [pid 5146] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0 [pid 5145] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5145] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5146] <... pwritev2 resumed>) = 20480 [pid 5146] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5146] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5145] <... futex resumed>) = 0 [pid 5145] exit_group(0) = ? [pid 5146] <... futex resumed>) = ? [pid 5146] +++ exited with 0 +++ [pid 5145] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5145, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./37", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./37", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./37/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./37/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./37/binderfs") = 0 umount2("./37/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./37/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./37/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./37/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./37/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./37/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./37") = 0 mkdir("./38", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5147 ./strace-static-x86_64: Process 5147 attached [pid 5147] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5147] chdir("./38") = 0 [pid 5147] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5147] setpgid(0, 0) = 0 [pid 5147] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5147] write(3, "1000", 4) = 4 [pid 5147] close(3) = 0 [pid 5147] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5147] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5147] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5147] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5147] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5148], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5148 [pid 5147] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5147] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5148 attached [pid 5148] set_robust_list(0x7fa3182639e0, 24) = 0 [pid 5148] memfd_create("syzkaller", 0) = 3 [pid 5148] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [pid 5148] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5148] munmap(0x7fa30fe43000, 524288) = 0 [pid 5148] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5148] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5148] close(3) = 0 [pid 5148] mkdir("./file0", 0777) = 0 [pid 5148] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5148] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5148] chdir("./file0") = 0 [pid 5148] ioctl(4, LOOP_CLR_FD) = 0 [pid 5148] close(4) = 0 [pid 5148] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5148] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5147] <... futex resumed>) = 0 [pid 5147] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5147] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5148] <... futex resumed>) = 0 [pid 5148] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 4 [pid 5148] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5147] <... futex resumed>) = 0 [pid 5147] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5147] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5148] <... futex resumed>) = 1 [pid 5148] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = 5 [pid 5148] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5147] <... futex resumed>) = 0 [pid 5147] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5147] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5148] <... futex resumed>) = 1 [pid 5148] openat(-1, "/proc/self/exe", O_RDONLY) = 6 [pid 5148] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5147] <... futex resumed>) = 0 [pid 5147] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5147] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5148] <... futex resumed>) = 1 [ 60.028711][ T5148] loop0: detected capacity change from 0 to 1024 [ 60.038400][ T5148] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 60.048985][ T5148] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 60.061014][ T5148] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5148] sendfile(5, 6, NULL, 140737974943952) = 65536 [pid 5148] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5147] <... futex resumed>) = 0 [pid 5147] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5147] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5148] <... futex resumed>) = 1 [pid 5148] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = -1 ENOSPC (No space left on device) [pid 5148] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5147] <... futex resumed>) = 0 [pid 5148] <... futex resumed>) = 1 [pid 5147] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5147] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5148] ftruncate(4, 31) = 0 [pid 5148] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5147] <... futex resumed>) = 0 [pid 5147] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5147] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5148] <... futex resumed>) = 1 [pid 5148] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 7 [pid 5148] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5147] <... futex resumed>) = 0 [pid 5147] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5147] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5148] <... futex resumed>) = 1 [pid 5148] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = 20480 [pid 5148] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5147] <... futex resumed>) = 0 [pid 5147] exit_group(0) = ? [pid 5148] <... futex resumed>) = ? [pid 5148] +++ exited with 0 +++ [pid 5147] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5147, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./38", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./38", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./38/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./38/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./38/binderfs") = 0 umount2("./38/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./38/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./38/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./38/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./38/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./38/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./38") = 0 mkdir("./39", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5149 ./strace-static-x86_64: Process 5149 attached [pid 5149] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5149] chdir("./39") = 0 [pid 5149] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5149] setpgid(0, 0) = 0 [pid 5149] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5149] write(3, "1000", 4) = 4 [pid 5149] close(3) = 0 [pid 5149] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5149] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5149] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5149] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5149] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5150], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5150 ./strace-static-x86_64: Process 5150 attached [pid 5150] set_robust_list(0x7fa3182639e0, 24) = 0 [pid 5150] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5149] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5150] <... futex resumed>) = 0 [pid 5150] memfd_create("syzkaller", 0) = 3 [pid 5150] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [pid 5149] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5150] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5150] munmap(0x7fa30fe43000, 524288) = 0 [pid 5150] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5150] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5150] close(3) = 0 [pid 5150] mkdir("./file0", 0777) = 0 [pid 5150] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5150] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5150] chdir("./file0") = 0 [pid 5150] ioctl(4, LOOP_CLR_FD) = 0 [pid 5150] close(4) = 0 [pid 5150] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5149] <... futex resumed>) = 0 [pid 5149] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5149] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5150] <... futex resumed>) = 1 [pid 5150] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 4 [pid 5150] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5149] <... futex resumed>) = 0 [pid 5149] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5149] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5150] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = 5 [pid 5150] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5149] <... futex resumed>) = 0 [pid 5149] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5150] openat(-1, "/proc/self/exe", O_RDONLY [pid 5149] <... futex resumed>) = 0 [pid 5149] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5150] <... openat resumed>) = 6 [pid 5150] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5149] <... futex resumed>) = 0 [pid 5150] sendfile(5, 6, NULL, 140737974943952 [pid 5149] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 60.188585][ T5150] loop0: detected capacity change from 0 to 1024 [ 60.200237][ T5150] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 60.210507][ T5150] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 60.221955][ T5150] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5149] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5150] <... sendfile resumed>) = 65536 [pid 5150] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5149] <... futex resumed>) = 0 [pid 5150] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5149] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5149] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5150] <... futex resumed>) = 0 [pid 5150] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = -1 ENOSPC (No space left on device) [pid 5150] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5150] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5149] <... futex resumed>) = 0 [pid 5149] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5150] <... futex resumed>) = 0 [pid 5150] ftruncate(4, 31 [pid 5149] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5150] <... ftruncate resumed>) = 0 [pid 5150] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5149] <... futex resumed>) = 0 [pid 5150] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [pid 5149] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5149] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5150] <... open resumed>) = 7 [pid 5150] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5149] <... futex resumed>) = 0 [pid 5149] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5149] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5150] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = 20480 [pid 5150] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5149] <... futex resumed>) = 0 [pid 5150] <... futex resumed>) = 1 [pid 5149] exit_group(0 [pid 5150] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL) = ? [pid 5149] <... exit_group resumed>) = ? [pid 5150] +++ exited with 0 +++ [pid 5149] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5149, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- umount2("./39", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./39", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./39/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./39/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./39/binderfs") = 0 umount2("./39/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./39/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./39/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./39/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./39/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./39/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./39") = 0 mkdir("./40", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5151 ./strace-static-x86_64: Process 5151 attached [pid 5151] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5151] chdir("./40") = 0 [pid 5151] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5151] setpgid(0, 0) = 0 [pid 5151] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5151] write(3, "1000", 4) = 4 [pid 5151] close(3) = 0 [pid 5151] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5151] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5151] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5151] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5151] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5152 attached , parent_tid=[5152], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5152 [pid 5151] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5151] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5152] set_robust_list(0x7fa3182639e0, 24) = 0 [pid 5152] memfd_create("syzkaller", 0) = 3 [pid 5152] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [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"..., 524288) = 524288 [pid 5152] munmap(0x7fa30fe43000, 524288) = 0 [pid 5152] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5152] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5152] close(3) = 0 [pid 5152] mkdir("./file0", 0777) = 0 [pid 5152] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5152] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5152] chdir("./file0") = 0 [pid 5152] ioctl(4, LOOP_CLR_FD) = 0 [pid 5152] close(4) = 0 [pid 5152] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5152] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5151] <... futex resumed>) = 0 [pid 5151] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5151] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5152] <... futex resumed>) = 0 [pid 5152] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 4 [pid 5152] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5151] <... futex resumed>) = 0 [pid 5151] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5151] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5152] <... futex resumed>) = 1 [pid 5152] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = 5 [pid 5152] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5152] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5151] <... futex resumed>) = 0 [pid 5151] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5151] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5152] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5152] openat(-1, "/proc/self/exe", O_RDONLY) = 6 [pid 5152] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5151] <... futex resumed>) = 0 [pid 5151] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5151] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [ 60.369289][ T5152] loop0: detected capacity change from 0 to 1024 [ 60.380706][ T5152] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 60.391325][ T5152] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 60.403308][ T5152] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5152] sendfile(5, 6, NULL, 140737974943952) = 65536 [pid 5152] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5151] <... futex resumed>) = 0 [pid 5151] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5151] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5152] <... futex resumed>) = 1 [pid 5152] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = -1 ENOSPC (No space left on device) [pid 5152] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5151] <... futex resumed>) = 0 [pid 5151] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5151] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5152] <... futex resumed>) = 1 [pid 5152] ftruncate(4, 31) = 0 [pid 5152] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5151] <... futex resumed>) = 0 [pid 5151] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5151] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5152] <... futex resumed>) = 1 [pid 5152] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 7 [pid 5152] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5151] <... futex resumed>) = 0 [pid 5151] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5151] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5152] <... futex resumed>) = 1 [pid 5152] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = 20480 [pid 5152] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5151] <... futex resumed>) = 0 [pid 5151] exit_group(0) = ? [pid 5152] <... futex resumed>) = ? [pid 5152] +++ exited with 0 +++ [pid 5151] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5151, si_uid=0, si_status=0, si_utime=0, si_stime=7 /* 0.07 s */} --- umount2("./40", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./40", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./40/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./40/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./40/binderfs") = 0 umount2("./40/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./40/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./40/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./40/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./40/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./40/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./40") = 0 mkdir("./41", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5153 ./strace-static-x86_64: Process 5153 attached [pid 5153] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5153] chdir("./41") = 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] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5153] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5153] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5153] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5154 attached , parent_tid=[5154], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5154 [pid 5154] set_robust_list(0x7fa3182639e0, 24 [pid 5153] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5154] <... set_robust_list resumed>) = 0 [pid 5153] <... futex resumed>) = 0 [pid 5153] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5154] memfd_create("syzkaller", 0) = 3 [pid 5154] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [pid 5154] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5154] munmap(0x7fa30fe43000, 524288) = 0 [pid 5154] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5154] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5154] close(3) = 0 [pid 5154] mkdir("./file0", 0777) = 0 [pid 5154] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5154] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5154] chdir("./file0") = 0 [pid 5154] ioctl(4, LOOP_CLR_FD) = 0 [pid 5154] close(4) = 0 [pid 5154] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5154] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5153] <... futex resumed>) = 0 [pid 5153] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5153] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5154] <... futex resumed>) = 0 [pid 5154] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 4 [pid 5154] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5153] <... futex resumed>) = 0 [pid 5153] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5153] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5154] <... futex resumed>) = 1 [pid 5154] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = 5 [pid 5154] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5154] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5153] <... futex resumed>) = 0 [pid 5153] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5153] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5154] <... futex resumed>) = 0 [pid 5154] openat(-1, "/proc/self/exe", O_RDONLY) = 6 [pid 5154] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5153] <... futex resumed>) = 0 [pid 5153] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5153] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5154] <... futex resumed>) = 1 [ 60.537654][ T5154] loop0: detected capacity change from 0 to 1024 [ 60.547974][ T5154] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 60.558171][ T5154] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 60.569614][ T5154] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5154] sendfile(5, 6, NULL, 140737974943952) = 65536 [pid 5154] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5153] <... futex resumed>) = 0 [pid 5153] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5154] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0 [pid 5153] <... futex resumed>) = 0 [pid 5153] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5154] <... pwritev2 resumed>) = -1 ENOSPC (No space left on device) [pid 5154] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5153] <... futex resumed>) = 0 [pid 5154] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5153] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5154] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5153] <... futex resumed>) = 0 [pid 5154] ftruncate(4, 31 [pid 5153] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5154] <... ftruncate resumed>) = 0 [pid 5154] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5153] <... futex resumed>) = 0 [pid 5153] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5153] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5154] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 7 [pid 5154] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5153] <... futex resumed>) = 0 [pid 5153] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5153] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5154] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = 20480 [pid 5154] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5153] <... futex resumed>) = 0 [pid 5153] exit_group(0) = ? [pid 5154] +++ exited with 0 +++ [pid 5153] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5153, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} --- umount2("./41", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./41", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./41/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./41/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./41/binderfs") = 0 umount2("./41/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./41/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./41/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./41/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./41/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./41/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./41") = 0 mkdir("./42", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5155 attached , child_tidptr=0x55555702f5d0) = 5155 [pid 5155] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5155] chdir("./42") = 0 [pid 5155] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5155] setpgid(0, 0) = 0 [pid 5155] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5155] write(3, "1000", 4) = 4 [pid 5155] close(3) = 0 [pid 5155] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5155] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5155] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5155] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5155] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5156], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5156 [pid 5155] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5155] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5156 attached [pid 5156] set_robust_list(0x7fa3182639e0, 24) = 0 [pid 5156] memfd_create("syzkaller", 0) = 3 [pid 5156] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [pid 5156] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5156] munmap(0x7fa30fe43000, 524288) = 0 [pid 5156] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5156] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5156] close(3) = 0 [pid 5156] mkdir("./file0", 0777) = 0 [pid 5156] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5156] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5156] chdir("./file0") = 0 [pid 5156] ioctl(4, LOOP_CLR_FD) = 0 [pid 5156] close(4) = 0 [pid 5156] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5155] <... futex resumed>) = 0 [pid 5155] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5155] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5156] <... futex resumed>) = 1 [pid 5156] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 4 [pid 5156] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5156] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5155] <... futex resumed>) = 0 [pid 5155] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5155] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5156] <... futex resumed>) = 0 [pid 5156] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = 5 [pid 5156] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5155] <... futex resumed>) = 0 [pid 5155] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5155] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5156] <... futex resumed>) = 1 [pid 5156] openat(-1, "/proc/self/exe", O_RDONLY) = 6 [pid 5156] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5155] <... futex resumed>) = 0 [pid 5155] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5155] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5156] <... futex resumed>) = 1 [ 60.733468][ T5156] loop0: detected capacity change from 0 to 1024 [ 60.743638][ T5156] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 60.754011][ T5156] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 60.765517][ T5156] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5156] sendfile(5, 6, NULL, 140737974943952) = 65536 [pid 5156] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5155] <... futex resumed>) = 0 [pid 5155] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5155] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5156] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = -1 ENOSPC (No space left on device) [pid 5156] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5155] <... futex resumed>) = 0 [pid 5155] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5155] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5156] ftruncate(4, 31) = 0 [pid 5156] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5155] <... futex resumed>) = 0 [pid 5155] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5155] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5156] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 7 [pid 5156] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5155] <... futex resumed>) = 0 [pid 5155] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5155] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5156] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = 20480 [pid 5156] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5155] <... futex resumed>) = 0 [pid 5155] exit_group(0) = ? [pid 5156] +++ exited with 0 +++ [pid 5155] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5155, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- umount2("./42", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./42", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./42/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./42/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./42/binderfs") = 0 umount2("./42/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./42/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./42/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./42/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./42/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./42/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./42") = 0 mkdir("./43", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5157 ./strace-static-x86_64: Process 5157 attached [pid 5157] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5157] chdir("./43") = 0 [pid 5157] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5157] setpgid(0, 0) = 0 [pid 5157] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5157] write(3, "1000", 4) = 4 [pid 5157] close(3) = 0 [pid 5157] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5157] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5157] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5157] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5157] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5158], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5158 [pid 5157] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5157] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5158 attached [pid 5158] set_robust_list(0x7fa3182639e0, 24) = 0 [pid 5158] memfd_create("syzkaller", 0) = 3 [pid 5158] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [pid 5158] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5158] munmap(0x7fa30fe43000, 524288) = 0 [pid 5158] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5158] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5158] close(3) = 0 [pid 5158] mkdir("./file0", 0777) = 0 [pid 5158] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5158] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5158] chdir("./file0") = 0 [pid 5158] ioctl(4, LOOP_CLR_FD) = 0 [pid 5158] close(4) = 0 [pid 5158] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5157] <... futex resumed>) = 0 [pid 5157] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5157] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5158] <... futex resumed>) = 1 [pid 5158] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 4 [pid 5158] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5157] <... futex resumed>) = 0 [pid 5157] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5157] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5158] <... futex resumed>) = 1 [pid 5158] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = 5 [pid 5158] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5157] <... futex resumed>) = 0 [pid 5157] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5157] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5158] <... futex resumed>) = 1 [pid 5158] openat(-1, "/proc/self/exe", O_RDONLY) = 6 [pid 5158] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5157] <... futex resumed>) = 0 [pid 5157] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5157] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5158] <... futex resumed>) = 1 [ 60.924970][ T5158] loop0: detected capacity change from 0 to 1024 [ 60.934413][ T5158] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 60.944756][ T5158] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 60.956417][ T5158] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5158] sendfile(5, 6, NULL, 140737974943952) = 65536 [pid 5158] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5157] <... futex resumed>) = 0 [pid 5157] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5157] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5158] <... futex resumed>) = 1 [pid 5158] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = -1 ENOSPC (No space left on device) [pid 5158] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5158] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5157] <... futex resumed>) = 0 [pid 5157] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5158] <... futex resumed>) = 0 [pid 5158] ftruncate(4, 31 [pid 5157] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5158] <... ftruncate resumed>) = 0 [pid 5158] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5158] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5157] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5158] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5157] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5158] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [pid 5157] <... futex resumed>) = 0 [pid 5157] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5158] <... open resumed>) = 7 [pid 5158] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5157] <... futex resumed>) = 0 [pid 5158] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5157] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5157] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5158] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5158] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = 20480 [pid 5158] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5157] <... futex resumed>) = 0 [pid 5158] <... futex resumed>) = 1 [pid 5158] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5157] exit_group(0 [pid 5158] <... futex resumed>) = ? [pid 5157] <... exit_group resumed>) = ? [pid 5158] +++ exited with 0 +++ [pid 5157] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5157, si_uid=0, si_status=0, si_utime=0, si_stime=7 /* 0.07 s */} --- umount2("./43", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./43", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./43/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./43/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./43/binderfs") = 0 umount2("./43/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./43/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./43/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./43/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./43/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./43/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./43") = 0 mkdir("./44", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5159 ./strace-static-x86_64: Process 5159 attached [pid 5159] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5159] chdir("./44") = 0 [pid 5159] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5159] setpgid(0, 0) = 0 [pid 5159] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5159] write(3, "1000", 4) = 4 [pid 5159] close(3) = 0 [pid 5159] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5159] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5159] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5159] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5159] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5160], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5160 [pid 5159] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5159] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5160 attached [pid 5160] set_robust_list(0x7fa3182639e0, 24) = 0 [pid 5160] memfd_create("syzkaller", 0) = 3 [pid 5160] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [pid 5160] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5160] munmap(0x7fa30fe43000, 524288) = 0 [pid 5160] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5160] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5160] close(3) = 0 [pid 5160] mkdir("./file0", 0777) = 0 [pid 5160] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5160] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5160] chdir("./file0") = 0 [pid 5160] ioctl(4, LOOP_CLR_FD) = 0 [pid 5160] close(4) = 0 [pid 5160] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5159] <... futex resumed>) = 0 [pid 5159] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5159] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5160] <... futex resumed>) = 1 [pid 5160] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 4 [pid 5160] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5159] <... futex resumed>) = 0 [pid 5159] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5159] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5160] <... futex resumed>) = 1 [pid 5160] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = 5 [pid 5160] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5159] <... futex resumed>) = 0 [pid 5159] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5159] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5160] <... futex resumed>) = 1 [pid 5160] openat(-1, "/proc/self/exe", O_RDONLY) = 6 [pid 5160] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5159] <... futex resumed>) = 0 [pid 5159] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5159] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [ 61.097034][ T5160] loop0: detected capacity change from 0 to 1024 [ 61.107259][ T5160] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 61.117871][ T5160] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 61.129926][ T5160] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5160] sendfile(5, 6, NULL, 140737974943952) = 65536 [pid 5160] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5159] <... futex resumed>) = 0 [pid 5160] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5159] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5160] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5159] <... futex resumed>) = 0 [pid 5160] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0 [pid 5159] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5160] <... pwritev2 resumed>) = -1 ENOSPC (No space left on device) [pid 5160] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5159] <... futex resumed>) = 0 [pid 5159] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5159] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5160] ftruncate(4, 31) = 0 [pid 5160] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5159] <... futex resumed>) = 0 [pid 5159] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5159] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5160] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 7 [pid 5160] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5159] <... futex resumed>) = 0 [pid 5159] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5159] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5160] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = 20480 [pid 5160] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5159] <... futex resumed>) = 0 [pid 5160] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5159] exit_group(0 [pid 5160] <... futex resumed>) = ? [pid 5159] <... exit_group resumed>) = ? [pid 5160] +++ exited with 0 +++ [pid 5159] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5159, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./44", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./44", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./44/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./44/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./44/binderfs") = 0 umount2("./44/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./44/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./44/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./44/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./44/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./44/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./44") = 0 mkdir("./45", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5161 ./strace-static-x86_64: Process 5161 attached [pid 5161] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5161] chdir("./45") = 0 [pid 5161] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5161] setpgid(0, 0) = 0 [pid 5161] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5161] write(3, "1000", 4) = 4 [pid 5161] close(3) = 0 [pid 5161] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5161] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5161] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5161] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5161] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5162 attached , parent_tid=[5162], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5162 [pid 5162] set_robust_list(0x7fa3182639e0, 24) = 0 [pid 5162] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5161] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5162] <... futex resumed>) = 0 [pid 5161] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5162] memfd_create("syzkaller", 0) = 3 [pid 5162] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [pid 5162] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5162] munmap(0x7fa30fe43000, 524288) = 0 [pid 5162] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5162] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5162] close(3) = 0 [pid 5162] mkdir("./file0", 0777) = 0 [pid 5162] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5162] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5162] chdir("./file0") = 0 [pid 5162] ioctl(4, LOOP_CLR_FD) = 0 [pid 5162] close(4) = 0 [pid 5162] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5161] <... futex resumed>) = 0 [pid 5162] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [pid 5161] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5162] <... open resumed>) = 4 [pid 5161] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5162] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5161] <... futex resumed>) = 0 [pid 5162] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000 [pid 5161] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5162] <... open resumed>) = 5 [pid 5161] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5162] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5161] <... futex resumed>) = 0 [pid 5161] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5161] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5162] <... futex resumed>) = 1 [pid 5162] openat(-1, "/proc/self/exe", O_RDONLY) = 6 [pid 5162] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5161] <... futex resumed>) = 0 [pid 5162] sendfile(5, 6, NULL, 140737974943952 [pid 5161] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 61.286315][ T5162] loop0: detected capacity change from 0 to 1024 [ 61.296250][ T5162] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 61.306680][ T5162] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 61.318853][ T5162] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5161] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5162] <... sendfile resumed>) = 65536 [pid 5162] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5161] <... futex resumed>) = 0 [pid 5161] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5162] <... futex resumed>) = 1 [pid 5162] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0 [pid 5161] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5162] <... pwritev2 resumed>) = -1 ENOSPC (No space left on device) [pid 5162] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5161] <... futex resumed>) = 0 [pid 5161] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5162] ftruncate(4, 31 [pid 5161] <... futex resumed>) = 0 [pid 5162] <... ftruncate resumed>) = 0 [pid 5162] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5162] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5161] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5161] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5162] <... futex resumed>) = 0 [pid 5161] <... futex resumed>) = 1 [pid 5162] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [pid 5161] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5162] <... open resumed>) = 7 [pid 5162] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5161] <... futex resumed>) = 0 [pid 5162] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5161] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5162] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5161] <... futex resumed>) = 0 [pid 5162] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0 [pid 5161] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5162] <... pwritev2 resumed>) = 20480 [pid 5162] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5161] <... futex resumed>) = 0 [pid 5162] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5161] exit_group(0 [pid 5162] <... futex resumed>) = ? [pid 5161] <... exit_group resumed>) = ? [pid 5162] +++ exited with 0 +++ [pid 5161] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5161, si_uid=0, si_status=0, si_utime=0, si_stime=7 /* 0.07 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./45", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./45", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./45/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./45/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./45/binderfs") = 0 umount2("./45/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./45/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./45/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./45/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./45/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./45/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./45") = 0 mkdir("./46", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5163 ./strace-static-x86_64: Process 5163 attached [pid 5163] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5163] chdir("./46") = 0 [pid 5163] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5163] setpgid(0, 0) = 0 [pid 5163] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5163] write(3, "1000", 4) = 4 [pid 5163] close(3) = 0 [pid 5163] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5163] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5163] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5163] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5163] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5164 attached , parent_tid=[5164], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5164 [pid 5163] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5163] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5164] set_robust_list(0x7fa3182639e0, 24) = 0 [pid 5164] memfd_create("syzkaller", 0) = 3 [pid 5164] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [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"..., 524288) = 524288 [pid 5164] munmap(0x7fa30fe43000, 524288) = 0 [pid 5164] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5164] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5164] close(3) = 0 [pid 5164] mkdir("./file0", 0777) = 0 [pid 5164] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5164] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5164] chdir("./file0") = 0 [pid 5164] ioctl(4, LOOP_CLR_FD) = 0 [pid 5164] close(4) = 0 [pid 5164] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5163] <... futex resumed>) = 0 [pid 5164] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [pid 5163] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5163] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5164] <... open resumed>) = 4 [pid 5164] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5163] <... futex resumed>) = 0 [pid 5164] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000 [pid 5163] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5163] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5164] <... open resumed>) = 5 [pid 5164] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5163] <... futex resumed>) = 0 [pid 5164] <... futex resumed>) = 1 [pid 5163] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5164] openat(-1, "/proc/self/exe", O_RDONLY [pid 5163] <... futex resumed>) = 0 [pid 5164] <... openat resumed>) = 6 [pid 5163] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5164] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5163] <... futex resumed>) = 0 [pid 5164] sendfile(5, 6, NULL, 140737974943952 [pid 5163] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 61.454617][ T5164] loop0: detected capacity change from 0 to 1024 [ 61.464793][ T5164] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 61.475335][ T5164] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 61.487042][ T5164] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5163] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5164] <... sendfile resumed>) = 65536 [pid 5164] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5164] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5163] <... futex resumed>) = 0 [pid 5163] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5163] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5164] <... futex resumed>) = 0 [pid 5164] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = -1 ENOSPC (No space left on device) [pid 5164] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5163] <... futex resumed>) = 0 [pid 5164] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5163] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5164] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5163] <... futex resumed>) = 0 [pid 5164] ftruncate(4, 31 [pid 5163] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5164] <... ftruncate resumed>) = 0 [pid 5164] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5163] <... futex resumed>) = 0 [pid 5164] <... futex resumed>) = 1 [pid 5163] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5164] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [pid 5163] <... futex resumed>) = 0 [pid 5163] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5164] <... open resumed>) = 7 [pid 5164] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5163] <... futex resumed>) = 0 [pid 5164] <... futex resumed>) = 1 [pid 5164] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0 [pid 5163] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5163] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5164] <... pwritev2 resumed>) = 20480 [pid 5164] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5163] <... futex resumed>) = 0 [pid 5164] <... futex resumed>) = 1 [pid 5164] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5163] exit_group(0) = ? [pid 5164] <... futex resumed>) = ? [pid 5164] +++ exited with 0 +++ [pid 5163] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5163, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./46", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./46", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./46/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./46/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./46/binderfs") = 0 umount2("./46/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./46/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./46/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./46/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./46/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./46/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./46") = 0 mkdir("./47", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5165 ./strace-static-x86_64: Process 5165 attached [pid 5165] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5165] chdir("./47") = 0 [pid 5165] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5165] setpgid(0, 0) = 0 [pid 5165] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5165] write(3, "1000", 4) = 4 [pid 5165] close(3) = 0 [pid 5165] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5165] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5165] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5165] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5165] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5166], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5166 [pid 5165] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5165] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5166 attached [pid 5166] set_robust_list(0x7fa3182639e0, 24) = 0 [pid 5166] memfd_create("syzkaller", 0) = 3 [pid 5166] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [pid 5166] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5166] munmap(0x7fa30fe43000, 524288) = 0 [pid 5166] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5166] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5166] close(3) = 0 [pid 5166] mkdir("./file0", 0777) = 0 [pid 5166] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5166] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5166] chdir("./file0") = 0 [pid 5166] ioctl(4, LOOP_CLR_FD) = 0 [pid 5166] close(4) = 0 [pid 5166] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5165] <... futex resumed>) = 0 [pid 5165] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5165] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5166] <... futex resumed>) = 1 [pid 5166] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 4 [pid 5166] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5165] <... futex resumed>) = 0 [pid 5166] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5165] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5165] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5166] <... futex resumed>) = 0 [pid 5166] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = 5 [pid 5166] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5165] <... futex resumed>) = 0 [pid 5166] openat(-1, "/proc/self/exe", O_RDONLY [pid 5165] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5165] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5166] <... openat resumed>) = 6 [pid 5166] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5165] <... futex resumed>) = 0 [pid 5166] sendfile(5, 6, NULL, 140737974943952 [pid 5165] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 61.628447][ T5166] loop0: detected capacity change from 0 to 1024 [ 61.638560][ T5166] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 61.648930][ T5166] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 61.661558][ T5166] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5165] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5166] <... sendfile resumed>) = 65536 [pid 5166] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5165] <... futex resumed>) = 0 [pid 5165] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5165] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5166] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = -1 ENOSPC (No space left on device) [pid 5166] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5165] <... futex resumed>) = 0 [pid 5165] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5165] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5166] ftruncate(4, 31) = 0 [pid 5166] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5165] <... futex resumed>) = 0 [pid 5165] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5165] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5166] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 7 [pid 5166] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5165] <... futex resumed>) = 0 [pid 5165] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5165] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5166] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = 20480 [pid 5166] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5165] <... futex resumed>) = 0 [pid 5165] exit_group(0) = ? [pid 5166] +++ exited with 0 +++ [pid 5165] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5165, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./47", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./47", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./47/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./47/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./47/binderfs") = 0 umount2("./47/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./47/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./47/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./47/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./47/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./47/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./47") = 0 mkdir("./48", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5167 ./strace-static-x86_64: Process 5167 attached [pid 5167] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5167] chdir("./48") = 0 [pid 5167] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5167] setpgid(0, 0) = 0 [pid 5167] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5167] write(3, "1000", 4) = 4 [pid 5167] close(3) = 0 [pid 5167] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5167] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5167] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5167] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5167] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5168 attached , parent_tid=[5168], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5168 [pid 5167] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5167] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5168] set_robust_list(0x7fa3182639e0, 24) = 0 [pid 5168] memfd_create("syzkaller", 0) = 3 [pid 5168] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [pid 5168] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5168] munmap(0x7fa30fe43000, 524288) = 0 [pid 5168] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5168] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5168] close(3) = 0 [pid 5168] mkdir("./file0", 0777) = 0 [pid 5168] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5168] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5168] chdir("./file0") = 0 [pid 5168] ioctl(4, LOOP_CLR_FD) = 0 [pid 5168] close(4) = 0 [pid 5168] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5168] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5167] <... futex resumed>) = 0 [pid 5167] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5167] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5168] <... futex resumed>) = 0 [pid 5168] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 4 [pid 5168] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5167] <... futex resumed>) = 0 [pid 5167] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5167] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5168] <... futex resumed>) = 1 [pid 5168] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = 5 [pid 5168] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5168] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5167] <... futex resumed>) = 0 [pid 5167] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5167] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5168] <... futex resumed>) = 0 [pid 5168] openat(-1, "/proc/self/exe", O_RDONLY) = 6 [pid 5168] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5167] <... futex resumed>) = 0 [pid 5167] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5167] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [ 61.823715][ T5168] loop0: detected capacity change from 0 to 1024 [ 61.834163][ T5168] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 61.844924][ T5168] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 61.857786][ T5168] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5168] sendfile(5, 6, NULL, 140737974943952) = 65536 [pid 5168] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5167] <... futex resumed>) = 0 [pid 5167] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5167] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5168] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = -1 ENOSPC (No space left on device) [pid 5168] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5167] <... futex resumed>) = 0 [pid 5167] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5167] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5168] <... futex resumed>) = 1 [pid 5168] ftruncate(4, 31) = 0 [pid 5168] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5167] <... futex resumed>) = 0 [pid 5167] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5167] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5168] <... futex resumed>) = 1 [pid 5168] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 7 [pid 5168] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5167] <... futex resumed>) = 0 [pid 5167] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5167] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5168] <... futex resumed>) = 1 [pid 5168] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = 20480 [pid 5168] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5167] <... futex resumed>) = 0 [pid 5167] exit_group(0) = ? [pid 5168] <... futex resumed>) = ? [pid 5168] +++ exited with 0 +++ [pid 5167] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5167, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./48", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./48", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./48/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./48/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./48/binderfs") = 0 umount2("./48/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./48/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./48/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./48/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./48/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./48/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./48") = 0 mkdir("./49", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5169 ./strace-static-x86_64: Process 5169 attached [pid 5169] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5169] chdir("./49") = 0 [pid 5169] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5169] setpgid(0, 0) = 0 [pid 5169] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5169] write(3, "1000", 4) = 4 [pid 5169] close(3) = 0 [pid 5169] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5169] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5169] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5169] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5169] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5170 attached , parent_tid=[5170], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5170 [pid 5170] set_robust_list(0x7fa3182639e0, 24) = 0 [pid 5170] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5169] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5170] <... futex resumed>) = 0 [pid 5169] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5170] memfd_create("syzkaller", 0) = 3 [pid 5170] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [pid 5170] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5170] munmap(0x7fa30fe43000, 524288) = 0 [pid 5170] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5170] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5170] close(3) = 0 [pid 5170] mkdir("./file0", 0777) = 0 [pid 5170] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5170] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5170] chdir("./file0") = 0 [pid 5170] ioctl(4, LOOP_CLR_FD) = 0 [pid 5170] close(4) = 0 [pid 5170] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5169] <... futex resumed>) = 0 [pid 5169] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5169] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5170] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 4 [pid 5170] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5169] <... futex resumed>) = 0 [pid 5169] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5169] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5170] <... futex resumed>) = 1 [pid 5170] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = 5 [pid 5170] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5169] <... futex resumed>) = 0 [pid 5169] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5169] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5170] openat(-1, "/proc/self/exe", O_RDONLY) = 6 [pid 5170] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5169] <... futex resumed>) = 0 [pid 5169] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5169] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5170] <... futex resumed>) = 1 [ 62.018714][ T5170] loop0: detected capacity change from 0 to 1024 [ 62.029819][ T5170] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 62.040641][ T5170] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 62.053527][ T5170] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5170] sendfile(5, 6, NULL, 140737974943952) = 65536 [pid 5170] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5169] <... futex resumed>) = 0 [pid 5170] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0 [pid 5169] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5169] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5170] <... pwritev2 resumed>) = -1 ENOSPC (No space left on device) [pid 5170] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5169] <... futex resumed>) = 0 [pid 5169] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5170] ftruncate(4, 31 [pid 5169] <... futex resumed>) = 0 [pid 5169] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5170] <... ftruncate resumed>) = 0 [pid 5170] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5169] <... futex resumed>) = 0 [pid 5170] <... futex resumed>) = 1 [pid 5170] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [pid 5169] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5169] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5170] <... open resumed>) = 7 [pid 5170] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5169] <... futex resumed>) = 0 [pid 5170] <... futex resumed>) = 1 [pid 5170] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0 [pid 5169] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5169] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5170] <... pwritev2 resumed>) = 20480 [pid 5170] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5169] <... futex resumed>) = 0 [pid 5170] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5169] exit_group(0 [pid 5170] <... futex resumed>) = ? [pid 5169] <... exit_group resumed>) = ? [pid 5170] +++ exited with 0 +++ [pid 5169] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5169, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- umount2("./49", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./49", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./49/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./49/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./49/binderfs") = 0 umount2("./49/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./49/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./49/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./49/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./49/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./49/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./49") = 0 mkdir("./50", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5171 ./strace-static-x86_64: Process 5171 attached [pid 5171] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5171] chdir("./50") = 0 [pid 5171] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5171] setpgid(0, 0) = 0 [pid 5171] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5171] write(3, "1000", 4) = 4 [pid 5171] close(3) = 0 [pid 5171] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5171] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5171] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5171] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5171] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5172], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5172 [pid 5171] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5171] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5172 attached [pid 5172] set_robust_list(0x7fa3182639e0, 24) = 0 [pid 5172] memfd_create("syzkaller", 0) = 3 [pid 5172] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [pid 5172] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5172] munmap(0x7fa30fe43000, 524288) = 0 [pid 5172] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5172] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5172] close(3) = 0 [pid 5172] mkdir("./file0", 0777) = 0 [pid 5172] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5172] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5172] chdir("./file0") = 0 [pid 5172] ioctl(4, LOOP_CLR_FD) = 0 [pid 5172] close(4) = 0 [pid 5172] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5171] <... futex resumed>) = 0 [pid 5171] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5171] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5172] <... futex resumed>) = 1 [pid 5172] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 4 [pid 5172] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5171] <... futex resumed>) = 0 [pid 5171] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5171] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5172] <... futex resumed>) = 1 [pid 5172] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = 5 [pid 5172] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5171] <... futex resumed>) = 0 [pid 5172] openat(-1, "/proc/self/exe", O_RDONLY [pid 5171] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5172] <... openat resumed>) = 6 [pid 5171] <... futex resumed>) = 0 [pid 5171] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5172] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5172] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5171] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5171] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5171] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5172] <... futex resumed>) = 0 [ 62.218587][ T5172] loop0: detected capacity change from 0 to 1024 [ 62.228271][ T5172] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 62.238919][ T5172] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 62.251819][ T5172] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5172] sendfile(5, 6, NULL, 140737974943952) = 65536 [pid 5172] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5171] <... futex resumed>) = 0 [pid 5171] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5171] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5172] <... futex resumed>) = 1 [pid 5172] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = -1 ENOSPC (No space left on device) [pid 5172] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5171] <... futex resumed>) = 0 [pid 5171] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5171] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5172] <... futex resumed>) = 1 [pid 5172] ftruncate(4, 31) = 0 [pid 5172] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5172] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5171] <... futex resumed>) = 0 [pid 5171] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5171] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5172] <... futex resumed>) = 0 [pid 5172] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 7 [pid 5172] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5171] <... futex resumed>) = 0 [pid 5171] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5171] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5172] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = 20480 [pid 5172] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5171] <... futex resumed>) = 0 [pid 5172] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5171] exit_group(0 [pid 5172] <... futex resumed>) = ? [pid 5171] <... exit_group resumed>) = ? [pid 5172] +++ exited with 0 +++ [pid 5171] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5171, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./50", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./50", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./50/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./50/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./50/binderfs") = 0 umount2("./50/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./50/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./50/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./50/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./50/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./50/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./50") = 0 mkdir("./51", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5173 ./strace-static-x86_64: Process 5173 attached [pid 5173] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5173] chdir("./51") = 0 [pid 5173] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5173] setpgid(0, 0) = 0 [pid 5173] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5173] write(3, "1000", 4) = 4 [pid 5173] close(3) = 0 [pid 5173] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5173] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5173] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5173] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5173] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5174 attached , parent_tid=[5174], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5174 [pid 5174] set_robust_list(0x7fa3182639e0, 24 [pid 5173] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5174] <... set_robust_list resumed>) = 0 [pid 5173] <... futex resumed>) = 0 [pid 5173] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5174] memfd_create("syzkaller", 0) = 3 [pid 5174] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [pid 5174] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5174] munmap(0x7fa30fe43000, 524288) = 0 [pid 5174] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5174] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5174] close(3) = 0 [pid 5174] mkdir("./file0", 0777) = 0 [pid 5174] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5174] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5174] chdir("./file0") = 0 [pid 5174] ioctl(4, LOOP_CLR_FD) = 0 [pid 5174] close(4) = 0 [pid 5174] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5173] <... futex resumed>) = 0 [pid 5174] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5173] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5173] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5174] <... futex resumed>) = 0 [ 62.393979][ T5174] loop0: detected capacity change from 0 to 1024 [ 62.404116][ T5174] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 62.414504][ T5174] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 62.426979][ T5174] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5174] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 4 [pid 5174] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5173] <... futex resumed>) = 0 [pid 5173] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5173] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5174] <... futex resumed>) = 1 [pid 5174] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = 5 [pid 5174] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5173] <... futex resumed>) = 0 [pid 5173] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5173] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5174] <... futex resumed>) = 1 [pid 5174] openat(-1, "/proc/self/exe", O_RDONLY) = 6 [pid 5174] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5173] <... futex resumed>) = 0 [pid 5174] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5173] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5174] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5173] <... futex resumed>) = 0 [pid 5174] sendfile(5, 6, NULL, 140737974943952 [pid 5173] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5174] <... sendfile resumed>) = 65536 [pid 5174] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5174] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5173] <... futex resumed>) = 0 [pid 5173] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5174] <... futex resumed>) = 0 [pid 5174] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0 [pid 5173] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5174] <... pwritev2 resumed>) = -1 ENOSPC (No space left on device) [pid 5174] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5173] <... futex resumed>) = 0 [pid 5173] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5173] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [ 62.448471][ T27] kauditd_printk_skb: 66 callbacks suppressed [ 62.448484][ T27] audit: type=1800 audit(1672320162.225:155): pid=5174 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor164" name="file1" dev="loop0" ino=839 res=0 errno=0 [ 62.476264][ T27] audit: type=1800 audit(1672320162.235:156): pid=5174 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor164" name="bus" dev="loop0" ino=861 res=0 errno=0 [pid 5174] ftruncate(4, 31) = 0 [pid 5174] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5173] <... futex resumed>) = 0 [pid 5173] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5174] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [pid 5173] <... futex resumed>) = 0 [pid 5173] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5174] <... open resumed>) = 7 [pid 5174] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5173] <... futex resumed>) = 0 [pid 5174] <... futex resumed>) = 1 [pid 5173] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5174] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0 [pid 5173] <... futex resumed>) = 0 [pid 5173] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5174] <... pwritev2 resumed>) = 20480 [pid 5174] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5173] <... futex resumed>) = 0 [pid 5173] exit_group(0) = ? [pid 5174] <... futex resumed>) = ? [pid 5174] +++ exited with 0 +++ [pid 5173] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5173, si_uid=0, si_status=0, si_utime=0, si_stime=7 /* 0.07 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./51", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./51", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./51/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./51/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./51/binderfs") = 0 umount2("./51/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./51/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./51/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./51/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./51/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./51/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./51") = 0 mkdir("./52", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5175 ./strace-static-x86_64: Process 5175 attached [pid 5175] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5175] chdir("./52") = 0 [pid 5175] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5175] setpgid(0, 0) = 0 [pid 5175] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5175] write(3, "1000", 4) = 4 [pid 5175] close(3) = 0 [pid 5175] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5175] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5175] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5175] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5175] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5176 attached [pid 5176] set_robust_list(0x7fa3182639e0, 24) = 0 [ 62.531219][ T27] audit: type=1800 audit(1672320162.305:157): pid=5174 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor164" name="file1" dev="loop0" ino=839 res=0 errno=0 [pid 5176] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5175] <... clone resumed>, parent_tid=[5176], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5176 [pid 5175] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5176] <... futex resumed>) = 0 [pid 5175] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5176] memfd_create("syzkaller", 0) = 3 [pid 5176] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [pid 5176] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5176] munmap(0x7fa30fe43000, 524288) = 0 [pid 5176] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5176] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5176] close(3) = 0 [pid 5176] mkdir("./file0", 0777) = 0 [pid 5176] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5176] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5176] chdir("./file0") = 0 [pid 5176] ioctl(4, LOOP_CLR_FD) = 0 [pid 5176] close(4) = 0 [pid 5176] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5175] <... futex resumed>) = 0 [pid 5176] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5175] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5176] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5175] <... futex resumed>) = 0 [pid 5176] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [ 62.605962][ T5176] loop0: detected capacity change from 0 to 1024 [ 62.615971][ T5176] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 62.626233][ T5176] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 62.638534][ T5176] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5175] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5176] <... open resumed>) = 4 [pid 5176] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5176] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5175] <... futex resumed>) = 0 [pid 5175] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5175] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5176] <... futex resumed>) = 0 [pid 5176] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = 5 [pid 5176] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5175] <... futex resumed>) = 0 [pid 5175] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5175] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5176] <... futex resumed>) = 1 [pid 5176] openat(-1, "/proc/self/exe", O_RDONLY) = 6 [pid 5176] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5175] <... futex resumed>) = 0 [pid 5176] sendfile(5, 6, NULL, 140737974943952 [pid 5175] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5175] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5176] <... sendfile resumed>) = 65536 [pid 5176] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5176] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5175] <... futex resumed>) = 0 [pid 5175] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5176] <... futex resumed>) = 0 [pid 5176] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0 [pid 5175] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5176] <... pwritev2 resumed>) = -1 ENOSPC (No space left on device) [pid 5176] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5175] <... futex resumed>) = 0 [pid 5176] ftruncate(4, 31 [ 62.659624][ T27] audit: type=1800 audit(1672320162.435:158): pid=5176 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor164" name="file1" dev="loop0" ino=839 res=0 errno=0 [ 62.681031][ T27] audit: type=1800 audit(1672320162.435:159): pid=5176 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor164" name="bus" dev="loop0" ino=861 res=0 errno=0 [pid 5175] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5175] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5176] <... ftruncate resumed>) = 0 [pid 5176] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5175] <... futex resumed>) = 0 [pid 5176] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [pid 5175] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5175] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5176] <... open resumed>) = 7 [pid 5176] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5175] <... futex resumed>) = 0 [pid 5175] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5175] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5176] <... futex resumed>) = 1 [pid 5176] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = 20480 [pid 5176] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5175] <... futex resumed>) = 0 [pid 5175] exit_group(0) = ? [pid 5176] +++ exited with 0 +++ [pid 5175] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5175, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./52", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./52", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./52/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./52/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./52/binderfs") = 0 umount2("./52/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./52/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./52/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./52/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./52/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./52/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./52") = 0 mkdir("./53", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [ 62.732917][ T27] audit: type=1800 audit(1672320162.515:160): pid=5176 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor164" name="file1" dev="loop0" ino=839 res=0 errno=0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5177 ./strace-static-x86_64: Process 5177 attached [pid 5177] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5177] chdir("./53") = 0 [pid 5177] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5177] setpgid(0, 0) = 0 [pid 5177] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5177] write(3, "1000", 4) = 4 [pid 5177] close(3) = 0 [pid 5177] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5177] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5177] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5177] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5177] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5178 attached [pid 5178] set_robust_list(0x7fa3182639e0, 24 [pid 5177] <... clone resumed>, parent_tid=[5178], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5178 [pid 5178] <... set_robust_list resumed>) = 0 [pid 5177] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5177] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5178] memfd_create("syzkaller", 0) = 3 [pid 5178] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [pid 5178] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5178] munmap(0x7fa30fe43000, 524288) = 0 [pid 5178] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5178] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5178] close(3) = 0 [pid 5178] mkdir("./file0", 0777) = 0 [pid 5178] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5178] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5178] chdir("./file0") = 0 [pid 5178] ioctl(4, LOOP_CLR_FD) = 0 [pid 5178] close(4) = 0 [pid 5178] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5178] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5177] <... futex resumed>) = 0 [pid 5177] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5177] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5178] <... futex resumed>) = 0 [ 62.816461][ T5178] loop0: detected capacity change from 0 to 1024 [ 62.827201][ T5178] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 62.837795][ T5178] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 62.849989][ T5178] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5178] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 4 [pid 5178] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5178] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5177] <... futex resumed>) = 0 [pid 5177] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5177] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5178] <... futex resumed>) = 0 [pid 5178] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = 5 [pid 5178] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5177] <... futex resumed>) = 0 [pid 5177] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5177] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5178] <... futex resumed>) = 1 [pid 5178] openat(-1, "/proc/self/exe", O_RDONLY) = 6 [pid 5178] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5177] <... futex resumed>) = 0 [pid 5177] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5177] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5178] <... futex resumed>) = 1 [pid 5178] sendfile(5, 6, NULL, 140737974943952) = 65536 [pid 5178] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5177] <... futex resumed>) = 0 [pid 5177] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5177] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5178] <... futex resumed>) = 1 [pid 5178] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = -1 ENOSPC (No space left on device) [pid 5178] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5178] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5177] <... futex resumed>) = 0 [pid 5177] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5178] <... futex resumed>) = 0 [pid 5177] <... futex resumed>) = 1 [pid 5177] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5178] ftruncate(4, 31) = 0 [ 62.865474][ T27] audit: type=1800 audit(1672320162.645:161): pid=5178 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor164" name="file1" dev="loop0" ino=839 res=0 errno=0 [ 62.886763][ T27] audit: type=1800 audit(1672320162.665:162): pid=5178 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor164" name="bus" dev="loop0" ino=861 res=0 errno=0 [pid 5178] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5177] <... futex resumed>) = 0 [pid 5177] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5177] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5178] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 7 [pid 5178] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5177] <... futex resumed>) = 0 [pid 5178] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5177] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5178] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5177] <... futex resumed>) = 0 [pid 5178] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0 [pid 5177] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5178] <... pwritev2 resumed>) = 20480 [pid 5178] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5177] <... futex resumed>) = 0 [pid 5178] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5177] exit_group(0) = ? [pid 5178] <... futex resumed>) = ? [pid 5178] +++ exited with 0 +++ [pid 5177] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5177, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- umount2("./53", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./53", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./53/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./53/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./53/binderfs") = 0 umount2("./53/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./53/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./53/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./53/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./53/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [ 62.949531][ T27] audit: type=1800 audit(1672320162.725:163): pid=5178 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor164" name="file1" dev="loop0" ino=839 res=0 errno=0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./53/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./53") = 0 mkdir("./54", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5179 attached , child_tidptr=0x55555702f5d0) = 5179 [pid 5179] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5179] chdir("./54") = 0 [pid 5179] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5179] setpgid(0, 0) = 0 [pid 5179] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5179] write(3, "1000", 4) = 4 [pid 5179] close(3) = 0 [pid 5179] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5179] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5179] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5179] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5179] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5180], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5180 [pid 5179] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5179] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5180 attached [pid 5180] set_robust_list(0x7fa3182639e0, 24) = 0 [pid 5180] memfd_create("syzkaller", 0) = 3 [pid 5180] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [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"..., 524288) = 524288 [pid 5180] munmap(0x7fa30fe43000, 524288) = 0 [pid 5180] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5180] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5180] close(3) = 0 [pid 5180] mkdir("./file0", 0777) = 0 [pid 5180] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5180] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5180] chdir("./file0") = 0 [pid 5180] ioctl(4, LOOP_CLR_FD) = 0 [pid 5180] close(4) = 0 [pid 5180] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5179] <... futex resumed>) = 0 [pid 5179] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5179] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [ 63.056820][ T5180] loop0: detected capacity change from 0 to 1024 [ 63.066922][ T5180] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 63.077318][ T5180] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 63.089319][ T5180] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5180] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 4 [pid 5180] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5180] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5179] <... futex resumed>) = 0 [pid 5179] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5180] <... futex resumed>) = 0 [pid 5179] <... futex resumed>) = 1 [pid 5180] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000 [pid 5179] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5180] <... open resumed>) = 5 [pid 5180] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5179] <... futex resumed>) = 0 [pid 5180] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5179] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5180] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5179] <... futex resumed>) = 0 [pid 5180] openat(-1, "/proc/self/exe", O_RDONLY [pid 5179] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5180] <... openat resumed>) = 6 [pid 5180] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5179] <... futex resumed>) = 0 [pid 5180] sendfile(5, 6, NULL, 140737974943952 [pid 5179] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5179] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5180] <... sendfile resumed>) = 65536 [pid 5180] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5179] <... futex resumed>) = 0 [pid 5180] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5179] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5179] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5180] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5180] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = -1 ENOSPC (No space left on device) [pid 5180] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5179] <... futex resumed>) = 0 [ 63.117801][ T27] audit: type=1800 audit(1672320162.895:164): pid=5180 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor164" name="file1" dev="loop0" ino=839 res=0 errno=0 [pid 5179] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5180] ftruncate(4, 31 [pid 5179] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5180] <... ftruncate resumed>) = 0 [pid 5180] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5179] <... futex resumed>) = 0 [pid 5179] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5180] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [pid 5179] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5180] <... open resumed>) = 7 [pid 5180] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5179] <... futex resumed>) = 0 [pid 5179] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5180] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0 [pid 5179] <... futex resumed>) = 0 [pid 5179] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5180] <... pwritev2 resumed>) = 20480 [pid 5180] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5179] <... futex resumed>) = 0 [pid 5180] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5179] exit_group(0 [pid 5180] <... futex resumed>) = ? [pid 5179] <... exit_group resumed>) = ? [pid 5180] +++ exited with 0 +++ [pid 5179] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5179, si_uid=0, si_status=0, si_utime=0, si_stime=7 /* 0.07 s */} --- umount2("./54", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./54", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./54/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./54/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./54/binderfs") = 0 umount2("./54/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./54/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./54/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./54/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./54/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./54/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./54") = 0 mkdir("./55", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5181 ./strace-static-x86_64: Process 5181 attached [pid 5181] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5181] chdir("./55") = 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] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5181] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5181] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5181] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5182], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5182 ./strace-static-x86_64: Process 5182 attached [pid 5182] set_robust_list(0x7fa3182639e0, 24 [pid 5181] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5182] <... set_robust_list resumed>) = 0 [pid 5181] <... futex resumed>) = 0 [pid 5181] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5182] memfd_create("syzkaller", 0) = 3 [pid 5182] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [pid 5182] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5182] munmap(0x7fa30fe43000, 524288) = 0 [pid 5182] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5182] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5182] close(3) = 0 [pid 5182] mkdir("./file0", 0777) = 0 [pid 5182] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5182] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5182] chdir("./file0") = 0 [pid 5182] ioctl(4, LOOP_CLR_FD) = 0 [pid 5182] close(4) = 0 [pid 5182] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5181] <... futex resumed>) = 0 [pid 5181] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5181] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5182] <... futex resumed>) = 1 [pid 5182] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 4 [pid 5182] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5181] <... futex resumed>) = 0 [pid 5181] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5181] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5182] <... futex resumed>) = 1 [pid 5182] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = 5 [pid 5182] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5181] <... futex resumed>) = 0 [pid 5181] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5181] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5182] <... futex resumed>) = 1 [pid 5182] openat(-1, "/proc/self/exe", O_RDONLY) = 6 [pid 5182] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5181] <... futex resumed>) = 0 [pid 5182] <... futex resumed>) = 1 [pid 5181] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5182] sendfile(5, 6, NULL, 140737974943952 [pid 5181] <... futex resumed>) = 0 [ 63.247175][ T5182] loop0: detected capacity change from 0 to 1024 [ 63.258320][ T5182] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 63.269649][ T5182] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 63.282270][ T5182] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5181] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5182] <... sendfile resumed>) = 65536 [pid 5182] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5181] <... futex resumed>) = 0 [pid 5181] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5181] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5182] <... futex resumed>) = 1 [pid 5182] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = -1 ENOSPC (No space left on device) [pid 5182] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5181] <... futex resumed>) = 0 [pid 5181] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5181] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5182] <... futex resumed>) = 1 [pid 5182] ftruncate(4, 31) = 0 [pid 5182] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5181] <... futex resumed>) = 0 [pid 5182] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5181] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5182] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5181] <... futex resumed>) = 0 [pid 5182] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [pid 5181] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5182] <... open resumed>) = 7 [pid 5182] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5181] <... futex resumed>) = 0 [pid 5182] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5181] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5182] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5181] <... futex resumed>) = 0 [pid 5182] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0 [pid 5181] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5182] <... pwritev2 resumed>) = 20480 [pid 5182] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5181] <... futex resumed>) = 0 [pid 5181] exit_group(0) = ? [pid 5182] +++ exited with 0 +++ [pid 5181] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5181, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} --- umount2("./55", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./55", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./55/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./55/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./55/binderfs") = 0 umount2("./55/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./55/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./55/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./55/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./55/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./55/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./55") = 0 mkdir("./56", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5183 ./strace-static-x86_64: Process 5183 attached [pid 5183] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5183] chdir("./56") = 0 [pid 5183] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5183] setpgid(0, 0) = 0 [pid 5183] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5183] write(3, "1000", 4) = 4 [pid 5183] close(3) = 0 [pid 5183] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5183] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5183] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5183] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5183] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5184 attached , parent_tid=[5184], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5184 [pid 5184] set_robust_list(0x7fa3182639e0, 24 [pid 5183] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5183] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5184] <... set_robust_list resumed>) = 0 [pid 5184] memfd_create("syzkaller", 0) = 3 [pid 5184] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [pid 5184] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5184] munmap(0x7fa30fe43000, 524288) = 0 [pid 5184] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5184] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5184] close(3) = 0 [pid 5184] mkdir("./file0", 0777) = 0 [pid 5184] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5184] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5184] chdir("./file0") = 0 [pid 5184] ioctl(4, LOOP_CLR_FD) = 0 [pid 5184] close(4) = 0 [pid 5184] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5184] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5183] <... futex resumed>) = 0 [pid 5183] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5184] <... futex resumed>) = 0 [pid 5183] <... futex resumed>) = 1 [pid 5184] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [pid 5183] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5184] <... open resumed>) = 4 [pid 5184] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5183] <... futex resumed>) = 0 [pid 5184] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000 [pid 5183] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5183] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5184] <... open resumed>) = 5 [pid 5184] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5183] <... futex resumed>) = 0 [pid 5184] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5183] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5184] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5183] <... futex resumed>) = 0 [pid 5184] openat(-1, "/proc/self/exe", O_RDONLY [pid 5183] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5184] <... openat resumed>) = 6 [pid 5184] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5183] <... futex resumed>) = 0 [pid 5184] sendfile(5, 6, NULL, 140737974943952 [pid 5183] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 63.441076][ T5184] loop0: detected capacity change from 0 to 1024 [ 63.450736][ T5184] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 63.461210][ T5184] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 63.473716][ T5184] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5183] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5184] <... sendfile resumed>) = 65536 [pid 5184] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5183] <... futex resumed>) = 0 [pid 5183] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5183] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5184] <... futex resumed>) = 1 [pid 5184] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = -1 ENOSPC (No space left on device) [pid 5184] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5183] <... futex resumed>) = 0 [pid 5184] <... futex resumed>) = 1 [pid 5183] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5183] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5184] ftruncate(4, 31) = 0 [pid 5184] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5183] <... futex resumed>) = 0 [pid 5184] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5183] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5183] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5184] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5184] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 7 [pid 5184] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5183] <... futex resumed>) = 0 [pid 5184] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5183] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5183] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5184] <... futex resumed>) = 0 [pid 5184] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = 20480 [pid 5184] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5183] <... futex resumed>) = 0 [pid 5184] <... futex resumed>) = 1 [pid 5183] exit_group(0) = ? [pid 5184] +++ exited with 0 +++ [pid 5183] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5183, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./56", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./56", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./56/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./56/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./56/binderfs") = 0 umount2("./56/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./56/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./56/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./56/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./56/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./56/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./56") = 0 mkdir("./57", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5185 ./strace-static-x86_64: Process 5185 attached [pid 5185] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5185] chdir("./57") = 0 [pid 5185] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5185] setpgid(0, 0) = 0 [pid 5185] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5185] write(3, "1000", 4) = 4 [pid 5185] close(3) = 0 [pid 5185] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5185] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5185] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5185] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5185] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5186 attached [pid 5186] set_robust_list(0x7fa3182639e0, 24 [pid 5185] <... clone resumed>, parent_tid=[5186], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5186 [pid 5186] <... set_robust_list resumed>) = 0 [pid 5185] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5186] memfd_create("syzkaller", 0 [pid 5185] <... futex resumed>) = 0 [pid 5185] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5186] <... memfd_create resumed>) = 3 [pid 5186] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [pid 5186] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5186] munmap(0x7fa30fe43000, 524288) = 0 [pid 5186] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5186] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5186] close(3) = 0 [pid 5186] mkdir("./file0", 0777) = 0 [pid 5186] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5186] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5186] chdir("./file0") = 0 [pid 5186] ioctl(4, LOOP_CLR_FD) = 0 [pid 5186] close(4) = 0 [pid 5186] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5185] <... futex resumed>) = 0 [pid 5185] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5186] <... futex resumed>) = 1 [pid 5185] <... futex resumed>) = 0 [pid 5186] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [pid 5185] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5186] <... open resumed>) = 4 [pid 5186] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5185] <... futex resumed>) = 0 [pid 5186] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000 [pid 5185] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5186] <... open resumed>) = 5 [pid 5185] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5186] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5185] <... futex resumed>) = 0 [pid 5185] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5186] <... futex resumed>) = 1 [pid 5185] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5186] openat(-1, "/proc/self/exe", O_RDONLY) = 6 [pid 5186] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5185] <... futex resumed>) = 0 [pid 5186] sendfile(5, 6, NULL, 140737974943952 [pid 5185] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 63.634218][ T5186] loop0: detected capacity change from 0 to 1024 [ 63.644188][ T5186] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 63.654446][ T5186] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 63.666729][ T5186] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5185] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5186] <... sendfile resumed>) = 65536 [pid 5186] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5185] <... futex resumed>) = 0 [pid 5185] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5185] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5186] <... futex resumed>) = 1 [pid 5186] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = -1 ENOSPC (No space left on device) [pid 5186] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5185] <... futex resumed>) = 0 [pid 5186] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5185] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5186] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5185] <... futex resumed>) = 0 [pid 5186] ftruncate(4, 31 [pid 5185] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5186] <... ftruncate resumed>) = 0 [pid 5186] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5185] <... futex resumed>) = 0 [pid 5186] <... futex resumed>) = 1 [pid 5185] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5186] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [pid 5185] <... futex resumed>) = 0 [pid 5185] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5186] <... open resumed>) = 7 [pid 5186] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5185] <... futex resumed>) = 0 [pid 5186] <... futex resumed>) = 1 [pid 5185] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5186] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0 [pid 5185] <... futex resumed>) = 0 [pid 5185] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5186] <... pwritev2 resumed>) = 20480 [pid 5186] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5185] <... futex resumed>) = 0 [pid 5185] exit_group(0) = ? [pid 5186] +++ exited with 0 +++ [pid 5185] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5185, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./57", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./57", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./57/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./57/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./57/binderfs") = 0 umount2("./57/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./57/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./57/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./57/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./57/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./57/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./57") = 0 mkdir("./58", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5187 ./strace-static-x86_64: Process 5187 attached [pid 5187] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5187] chdir("./58") = 0 [pid 5187] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5187] setpgid(0, 0) = 0 [pid 5187] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5187] write(3, "1000", 4) = 4 [pid 5187] close(3) = 0 [pid 5187] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5187] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5187] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5187] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5187] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5188 attached [pid 5188] set_robust_list(0x7fa3182639e0, 24 [pid 5187] <... clone resumed>, parent_tid=[5188], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5188 [pid 5188] <... set_robust_list resumed>) = 0 [pid 5187] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5188] memfd_create("syzkaller", 0 [pid 5187] <... futex resumed>) = 0 [pid 5188] <... memfd_create resumed>) = 3 [pid 5187] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5188] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [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"..., 524288) = 524288 [pid 5188] munmap(0x7fa30fe43000, 524288) = 0 [pid 5188] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5188] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5188] close(3) = 0 [pid 5188] mkdir("./file0", 0777) = 0 [pid 5188] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5188] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5188] chdir("./file0") = 0 [pid 5188] ioctl(4, LOOP_CLR_FD) = 0 [pid 5188] close(4) = 0 [pid 5188] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5187] <... futex resumed>) = 0 [pid 5188] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5187] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5188] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5187] <... futex resumed>) = 0 [pid 5188] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [pid 5187] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5188] <... open resumed>) = 4 [pid 5188] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5187] <... futex resumed>) = 0 [pid 5188] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5187] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5188] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5187] <... futex resumed>) = 0 [pid 5188] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000 [pid 5187] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5188] <... open resumed>) = 5 [pid 5188] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5187] <... futex resumed>) = 0 [pid 5188] openat(-1, "/proc/self/exe", O_RDONLY [pid 5187] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5187] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5188] <... openat resumed>) = 6 [pid 5188] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5187] <... futex resumed>) = 0 [pid 5188] sendfile(5, 6, NULL, 140737974943952 [pid 5187] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 63.814874][ T5188] loop0: detected capacity change from 0 to 1024 [ 63.824788][ T5188] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 63.834986][ T5188] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 63.846691][ T5188] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5187] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5188] <... sendfile resumed>) = 65536 [pid 5188] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5187] <... futex resumed>) = 0 [pid 5188] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5187] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5188] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5187] <... futex resumed>) = 0 [pid 5188] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0 [pid 5187] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5188] <... pwritev2 resumed>) = -1 ENOSPC (No space left on device) [pid 5188] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5187] <... futex resumed>) = 0 [pid 5188] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5187] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5188] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5187] <... futex resumed>) = 0 [pid 5188] ftruncate(4, 31 [pid 5187] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5188] <... ftruncate resumed>) = 0 [pid 5188] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5187] <... futex resumed>) = 0 [pid 5188] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [pid 5187] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5187] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5188] <... open resumed>) = 7 [pid 5188] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5187] <... futex resumed>) = 0 [pid 5188] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0 [pid 5187] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5187] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5188] <... pwritev2 resumed>) = 20480 [pid 5188] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5187] <... futex resumed>) = 0 [pid 5188] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5187] exit_group(0) = ? [pid 5188] <... futex resumed>) = ? [pid 5188] +++ exited with 0 +++ [pid 5187] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5187, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./58", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./58", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./58/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./58/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./58/binderfs") = 0 umount2("./58/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./58/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./58/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./58/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./58/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./58/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./58") = 0 mkdir("./59", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5189 ./strace-static-x86_64: Process 5189 attached [pid 5189] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5189] chdir("./59") = 0 [pid 5189] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5189] setpgid(0, 0) = 0 [pid 5189] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5189] write(3, "1000", 4) = 4 [pid 5189] close(3) = 0 [pid 5189] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5189] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5189] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5189] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5189] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5190 attached , parent_tid=[5190], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5190 [pid 5190] set_robust_list(0x7fa3182639e0, 24) = 0 [pid 5190] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5189] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5190] <... futex resumed>) = 0 [pid 5189] <... futex resumed>) = 1 [pid 5189] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5190] memfd_create("syzkaller", 0) = 3 [pid 5190] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [pid 5190] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5190] munmap(0x7fa30fe43000, 524288) = 0 [pid 5190] openat(AT_FDCWD, "/dev/loop0", 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/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5190] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5190] chdir("./file0") = 0 [pid 5190] ioctl(4, LOOP_CLR_FD) = 0 [pid 5190] close(4) = 0 [pid 5190] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5189] <... futex resumed>) = 0 [pid 5190] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5189] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5190] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5189] <... futex resumed>) = 0 [pid 5190] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [pid 5189] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5190] <... open resumed>) = 4 [pid 5190] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5189] <... futex resumed>) = 0 [pid 5190] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000 [pid 5189] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5190] <... open resumed>) = 5 [pid 5189] <... futex resumed>) = 0 [pid 5190] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5189] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5190] <... futex resumed>) = 0 [pid 5190] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5189] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5189] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5190] <... futex resumed>) = 0 [pid 5189] <... futex resumed>) = 1 [pid 5190] openat(-1, "/proc/self/exe", O_RDONLY [pid 5189] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5190] <... openat resumed>) = 6 [pid 5190] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5189] <... futex resumed>) = 0 [pid 5190] sendfile(5, 6, NULL, 140737974943952 [pid 5189] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 64.009251][ T5190] loop0: detected capacity change from 0 to 1024 [ 64.018341][ T5190] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 64.028752][ T5190] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 64.040288][ T5190] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5189] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5190] <... sendfile resumed>) = 65536 [pid 5190] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5189] <... futex resumed>) = 0 [pid 5190] <... futex resumed>) = 1 [pid 5190] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0 [pid 5189] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5189] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5190] <... pwritev2 resumed>) = -1 ENOSPC (No space left on device) [pid 5190] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5189] <... futex resumed>) = 0 [pid 5190] <... futex resumed>) = 1 [pid 5189] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5190] ftruncate(4, 31 [pid 5189] <... futex resumed>) = 0 [pid 5189] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5190] <... ftruncate resumed>) = 0 [pid 5190] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5189] <... futex resumed>) = 0 [pid 5189] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5190] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [pid 5189] <... futex resumed>) = 0 [pid 5189] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5190] <... open resumed>) = 7 [pid 5190] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5189] <... futex resumed>) = 0 [pid 5189] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5189] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5190] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = 20480 [pid 5190] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5189] <... futex resumed>) = 0 [pid 5189] exit_group(0) = ? [pid 5190] <... futex resumed>) = ? [pid 5190] +++ exited with 0 +++ [pid 5189] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5189, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./59", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./59", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./59/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./59/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./59/binderfs") = 0 umount2("./59/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./59/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./59/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./59/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./59/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./59/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./59") = 0 mkdir("./60", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5191 ./strace-static-x86_64: Process 5191 attached [pid 5191] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5191] chdir("./60") = 0 [pid 5191] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5191] setpgid(0, 0) = 0 [pid 5191] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5191] write(3, "1000", 4) = 4 [pid 5191] close(3) = 0 [pid 5191] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5191] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5191] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5191] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5191] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5192 attached , parent_tid=[5192], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5192 [pid 5192] set_robust_list(0x7fa3182639e0, 24 [pid 5191] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5192] <... set_robust_list resumed>) = 0 [pid 5191] <... futex resumed>) = 0 [pid 5191] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5192] memfd_create("syzkaller", 0) = 3 [pid 5192] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [pid 5192] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5192] munmap(0x7fa30fe43000, 524288) = 0 [pid 5192] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5192] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5192] close(3) = 0 [pid 5192] mkdir("./file0", 0777) = 0 [pid 5192] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5192] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5192] chdir("./file0") = 0 [pid 5192] ioctl(4, LOOP_CLR_FD) = 0 [pid 5192] close(4) = 0 [pid 5192] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5191] <... futex resumed>) = 0 [pid 5191] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5191] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5192] <... futex resumed>) = 1 [pid 5192] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 4 [pid 5192] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5191] <... futex resumed>) = 0 [pid 5191] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5191] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5192] <... futex resumed>) = 1 [pid 5192] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = 5 [pid 5192] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5191] <... futex resumed>) = 0 [pid 5191] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5191] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5192] <... futex resumed>) = 1 [pid 5192] openat(-1, "/proc/self/exe", O_RDONLY) = 6 [pid 5192] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5191] <... futex resumed>) = 0 [pid 5191] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5191] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5192] <... futex resumed>) = 1 [ 64.197402][ T5192] loop0: detected capacity change from 0 to 1024 [ 64.207032][ T5192] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 64.217590][ T5192] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 64.229953][ T5192] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5192] sendfile(5, 6, NULL, 140737974943952) = 65536 [pid 5192] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5191] <... futex resumed>) = 0 [pid 5191] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5191] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5192] <... futex resumed>) = 1 [pid 5192] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = -1 ENOSPC (No space left on device) [pid 5192] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5191] <... futex resumed>) = 0 [pid 5192] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5191] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5192] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5191] <... futex resumed>) = 0 [pid 5192] ftruncate(4, 31 [pid 5191] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5192] <... ftruncate resumed>) = 0 [pid 5192] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5191] <... futex resumed>) = 0 [pid 5192] <... futex resumed>) = 1 [pid 5191] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5192] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [pid 5191] <... futex resumed>) = 0 [pid 5191] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5192] <... open resumed>) = 7 [pid 5192] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5191] <... futex resumed>) = 0 [pid 5192] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5191] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5192] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5191] <... futex resumed>) = 0 [pid 5192] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0 [pid 5191] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5192] <... pwritev2 resumed>) = 20480 [pid 5192] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5191] <... futex resumed>) = 0 [pid 5192] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5191] exit_group(0 [pid 5192] <... futex resumed>) = ? [pid 5191] <... exit_group resumed>) = ? [pid 5192] +++ exited with 0 +++ [pid 5191] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5191, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./60", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./60", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./60/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./60/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./60/binderfs") = 0 umount2("./60/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./60/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./60/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./60/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./60/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./60/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./60") = 0 mkdir("./61", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5193 ./strace-static-x86_64: Process 5193 attached [pid 5193] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5193] chdir("./61") = 0 [pid 5193] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5193] setpgid(0, 0) = 0 [pid 5193] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5193] write(3, "1000", 4) = 4 [pid 5193] close(3) = 0 [pid 5193] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5193] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5193] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5193] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5193] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5194], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5194 [pid 5193] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5193] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5194 attached [pid 5194] set_robust_list(0x7fa3182639e0, 24) = 0 [pid 5194] memfd_create("syzkaller", 0) = 3 [pid 5194] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [pid 5194] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5194] munmap(0x7fa30fe43000, 524288) = 0 [pid 5194] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5194] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5194] close(3) = 0 [pid 5194] mkdir("./file0", 0777) = 0 [pid 5194] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5194] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5194] chdir("./file0") = 0 [pid 5194] ioctl(4, LOOP_CLR_FD) = 0 [pid 5194] close(4) = 0 [pid 5194] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5193] <... futex resumed>) = 0 [pid 5194] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [pid 5193] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5193] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5194] <... open resumed>) = 4 [pid 5194] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5193] <... futex resumed>) = 0 [pid 5194] <... futex resumed>) = 1 [pid 5193] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5194] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000 [pid 5193] <... futex resumed>) = 0 [pid 5193] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5194] <... open resumed>) = 5 [pid 5194] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5193] <... futex resumed>) = 0 [pid 5194] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5193] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5194] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5193] <... futex resumed>) = 0 [pid 5194] openat(-1, "/proc/self/exe", O_RDONLY [pid 5193] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5194] <... openat resumed>) = 6 [pid 5194] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5193] <... futex resumed>) = 0 [pid 5194] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5193] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5193] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5194] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [ 64.384180][ T5194] loop0: detected capacity change from 0 to 1024 [ 64.394010][ T5194] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 64.404380][ T5194] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 64.416372][ T5194] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5194] sendfile(5, 6, NULL, 140737974943952) = 65536 [pid 5194] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5193] <... futex resumed>) = 0 [pid 5194] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5193] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5194] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5194] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0 [pid 5193] <... futex resumed>) = 0 [pid 5193] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5194] <... pwritev2 resumed>) = -1 ENOSPC (No space left on device) [pid 5194] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5193] <... futex resumed>) = 0 [pid 5194] ftruncate(4, 31 [pid 5193] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5193] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5194] <... ftruncate resumed>) = 0 [pid 5194] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5193] <... futex resumed>) = 0 [pid 5194] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [pid 5193] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5193] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5194] <... open resumed>) = 7 [pid 5194] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5193] <... futex resumed>) = 0 [pid 5194] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0 [pid 5193] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5193] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5194] <... pwritev2 resumed>) = 20480 [pid 5194] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5193] <... futex resumed>) = 0 [pid 5194] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5193] exit_group(0 [pid 5194] <... futex resumed>) = ? [pid 5193] <... exit_group resumed>) = ? [pid 5194] +++ exited with 0 +++ [pid 5193] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5193, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} --- umount2("./61", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./61", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./61/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./61/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./61/binderfs") = 0 umount2("./61/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./61/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./61/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./61/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./61/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./61/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./61") = 0 mkdir("./62", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5195 ./strace-static-x86_64: Process 5195 attached [pid 5195] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5195] chdir("./62") = 0 [pid 5195] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5195] setpgid(0, 0) = 0 [pid 5195] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5195] write(3, "1000", 4) = 4 [pid 5195] close(3) = 0 [pid 5195] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5195] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5195] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5195] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5195] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5196], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5196 [pid 5195] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5195] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5196 attached [pid 5196] set_robust_list(0x7fa3182639e0, 24) = 0 [pid 5196] memfd_create("syzkaller", 0) = 3 [pid 5196] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [pid 5196] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5196] munmap(0x7fa30fe43000, 524288) = 0 [pid 5196] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5196] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5196] close(3) = 0 [pid 5196] mkdir("./file0", 0777) = 0 [pid 5196] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5196] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5196] chdir("./file0") = 0 [pid 5196] ioctl(4, LOOP_CLR_FD) = 0 [pid 5196] close(4) = 0 [pid 5196] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5196] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5195] <... futex resumed>) = 0 [pid 5195] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5195] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5196] <... futex resumed>) = 0 [pid 5196] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 4 [pid 5196] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5195] <... futex resumed>) = 0 [pid 5195] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5195] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5196] <... futex resumed>) = 1 [pid 5196] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = 5 [pid 5196] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5195] <... futex resumed>) = 0 [pid 5195] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5195] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5196] <... futex resumed>) = 1 [pid 5196] openat(-1, "/proc/self/exe", O_RDONLY) = 6 [pid 5196] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5195] <... futex resumed>) = 0 [pid 5195] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5195] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5196] <... futex resumed>) = 1 [ 64.585815][ T5196] loop0: detected capacity change from 0 to 1024 [ 64.595603][ T5196] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 64.605878][ T5196] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 64.618510][ T5196] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5196] sendfile(5, 6, NULL, 140737974943952) = 65536 [pid 5196] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5195] <... futex resumed>) = 0 [pid 5196] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0 [pid 5195] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5195] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5196] <... pwritev2 resumed>) = -1 ENOSPC (No space left on device) [pid 5196] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5195] <... futex resumed>) = 0 [pid 5195] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5196] ftruncate(4, 31 [pid 5195] <... futex resumed>) = 0 [pid 5195] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5196] <... ftruncate resumed>) = 0 [pid 5196] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5195] <... futex resumed>) = 0 [pid 5196] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [pid 5195] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5195] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5196] <... open resumed>) = 7 [pid 5196] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5195] <... futex resumed>) = 0 [pid 5195] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5196] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0 [pid 5195] <... futex resumed>) = 0 [pid 5195] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5196] <... pwritev2 resumed>) = 20480 [pid 5196] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5195] <... futex resumed>) = 0 [pid 5196] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5195] exit_group(0 [pid 5196] <... futex resumed>) = ? [pid 5195] <... exit_group resumed>) = ? [pid 5196] +++ exited with 0 +++ [pid 5195] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5195, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} --- umount2("./62", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./62", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./62/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./62/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./62/binderfs") = 0 umount2("./62/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./62/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./62/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./62/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./62/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./62/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./62") = 0 mkdir("./63", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5197 ./strace-static-x86_64: Process 5197 attached [pid 5197] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5197] chdir("./63") = 0 [pid 5197] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5197] setpgid(0, 0) = 0 [pid 5197] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5197] write(3, "1000", 4) = 4 [pid 5197] close(3) = 0 [pid 5197] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5197] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5197] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5197] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5197] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5198], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5198 [pid 5197] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 ./strace-static-x86_64: Process 5198 attached [pid 5197] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5198] set_robust_list(0x7fa3182639e0, 24) = 0 [pid 5198] memfd_create("syzkaller", 0) = 3 [pid 5198] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [pid 5198] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5198] munmap(0x7fa30fe43000, 524288) = 0 [pid 5198] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5198] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5198] close(3) = 0 [pid 5198] mkdir("./file0", 0777) = 0 [pid 5198] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5198] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5198] chdir("./file0") = 0 [pid 5198] ioctl(4, LOOP_CLR_FD) = 0 [pid 5198] close(4) = 0 [pid 5198] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5197] <... futex resumed>) = 0 [pid 5197] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5197] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5198] <... futex resumed>) = 1 [pid 5198] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 4 [pid 5198] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5197] <... futex resumed>) = 0 [pid 5197] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5197] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5198] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = 5 [pid 5198] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5197] <... futex resumed>) = 0 [pid 5197] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5197] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5198] openat(-1, "/proc/self/exe", O_RDONLY) = 6 [pid 5198] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5197] <... futex resumed>) = 0 [pid 5197] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5197] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5198] <... futex resumed>) = 1 [ 64.769852][ T5198] loop0: detected capacity change from 0 to 1024 [ 64.779317][ T5198] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 64.790101][ T5198] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 64.802538][ T5198] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5198] sendfile(5, 6, NULL, 140737974943952) = 65536 [pid 5198] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5197] <... futex resumed>) = 0 [pid 5197] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5197] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5198] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = -1 ENOSPC (No space left on device) [pid 5198] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5197] <... futex resumed>) = 0 [pid 5197] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5197] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5198] ftruncate(4, 31) = 0 [pid 5198] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5197] <... futex resumed>) = 0 [pid 5197] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5197] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5198] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 7 [pid 5198] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5197] <... futex resumed>) = 0 [pid 5197] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5197] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5198] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = 20480 [pid 5198] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5197] <... futex resumed>) = 0 [pid 5197] exit_group(0) = ? [pid 5198] +++ exited with 0 +++ [pid 5197] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5197, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- umount2("./63", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./63", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./63/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./63/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./63/binderfs") = 0 umount2("./63/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./63/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./63/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./63/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./63/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./63/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./63") = 0 mkdir("./64", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5199 attached , child_tidptr=0x55555702f5d0) = 5199 [pid 5199] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5199] chdir("./64") = 0 [pid 5199] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5199] setpgid(0, 0) = 0 [pid 5199] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5199] write(3, "1000", 4) = 4 [pid 5199] close(3) = 0 [pid 5199] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5199] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5199] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5199] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5199] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5200], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5200 [pid 5199] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5199] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5200 attached [pid 5200] set_robust_list(0x7fa3182639e0, 24) = 0 [pid 5200] memfd_create("syzkaller", 0) = 3 [pid 5200] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [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"..., 524288) = 524288 [pid 5200] munmap(0x7fa30fe43000, 524288) = 0 [pid 5200] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5200] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5200] close(3) = 0 [pid 5200] mkdir("./file0", 0777) = 0 [pid 5200] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5200] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5200] chdir("./file0") = 0 [pid 5200] ioctl(4, LOOP_CLR_FD) = 0 [pid 5200] close(4) = 0 [pid 5200] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5199] <... futex resumed>) = 0 [pid 5199] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5199] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5200] <... futex resumed>) = 1 [pid 5200] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 4 [pid 5200] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5199] <... futex resumed>) = 0 [pid 5199] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5199] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5200] <... futex resumed>) = 1 [pid 5200] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = 5 [pid 5200] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5199] <... futex resumed>) = 0 [pid 5199] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5199] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5200] <... futex resumed>) = 1 [pid 5200] openat(-1, "/proc/self/exe", O_RDONLY) = 6 [pid 5200] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5199] <... futex resumed>) = 0 [pid 5199] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5199] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5200] <... futex resumed>) = 1 [ 64.972643][ T5200] loop0: detected capacity change from 0 to 1024 [ 64.982083][ T5200] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 64.992618][ T5200] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 65.004562][ T5200] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5200] sendfile(5, 6, NULL, 140737974943952) = 65536 [pid 5200] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5199] <... futex resumed>) = 0 [pid 5200] <... futex resumed>) = 1 [pid 5200] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0 [pid 5199] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5199] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5200] <... pwritev2 resumed>) = -1 ENOSPC (No space left on device) [pid 5200] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5199] <... futex resumed>) = 0 [pid 5200] <... futex resumed>) = 1 [pid 5200] ftruncate(4, 31 [pid 5199] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5200] <... ftruncate resumed>) = 0 [pid 5200] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5199] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5200] <... futex resumed>) = 0 [pid 5199] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5200] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [pid 5199] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5199] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5200] <... open resumed>) = 7 [pid 5200] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5199] <... futex resumed>) = 0 [pid 5200] <... futex resumed>) = 1 [pid 5199] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5200] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0 [pid 5199] <... futex resumed>) = 0 [pid 5199] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5200] <... pwritev2 resumed>) = 20480 [pid 5200] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5199] <... futex resumed>) = 0 [pid 5199] exit_group(0) = ? [pid 5200] <... futex resumed>) = ? [pid 5200] +++ exited with 0 +++ [pid 5199] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5199, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./64", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./64", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./64/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./64/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./64/binderfs") = 0 umount2("./64/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./64/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./64/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./64/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./64/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./64/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./64") = 0 mkdir("./65", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5201 ./strace-static-x86_64: Process 5201 attached [pid 5201] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5201] chdir("./65") = 0 [pid 5201] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5201] setpgid(0, 0) = 0 [pid 5201] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5201] write(3, "1000", 4) = 4 [pid 5201] close(3) = 0 [pid 5201] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5201] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5201] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5201] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5201] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5202], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5202 [pid 5201] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5201] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5202 attached [pid 5202] set_robust_list(0x7fa3182639e0, 24) = 0 [pid 5202] memfd_create("syzkaller", 0) = 3 [pid 5202] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [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"..., 524288) = 524288 [pid 5202] munmap(0x7fa30fe43000, 524288) = 0 [pid 5202] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5202] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5202] close(3) = 0 [pid 5202] mkdir("./file0", 0777) = 0 [pid 5202] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5202] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5202] chdir("./file0") = 0 [pid 5202] ioctl(4, LOOP_CLR_FD) = 0 [pid 5202] close(4) = 0 [pid 5202] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5201] <... futex resumed>) = 0 [pid 5202] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [pid 5201] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5201] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5202] <... open resumed>) = 4 [pid 5202] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5201] <... futex resumed>) = 0 [pid 5202] <... futex resumed>) = 1 [pid 5201] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5202] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000 [pid 5201] <... futex resumed>) = 0 [pid 5201] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5202] <... open resumed>) = 5 [pid 5202] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5201] <... futex resumed>) = 0 [pid 5201] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5201] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5202] <... futex resumed>) = 1 [pid 5202] openat(-1, "/proc/self/exe", O_RDONLY) = 6 [pid 5202] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5201] <... futex resumed>) = 0 [pid 5202] <... futex resumed>) = 1 [pid 5201] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5202] sendfile(5, 6, NULL, 140737974943952 [pid 5201] <... futex resumed>) = 0 [ 65.162088][ T5202] loop0: detected capacity change from 0 to 1024 [ 65.172011][ T5202] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 65.182475][ T5202] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 65.194149][ T5202] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5201] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5202] <... sendfile resumed>) = 65536 [pid 5202] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5201] <... futex resumed>) = 0 [pid 5201] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5201] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5202] <... futex resumed>) = 1 [pid 5202] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = -1 ENOSPC (No space left on device) [pid 5202] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5201] <... futex resumed>) = 0 [pid 5202] <... futex resumed>) = 1 [pid 5202] ftruncate(4, 31 [pid 5201] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5201] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5202] <... ftruncate resumed>) = 0 [pid 5202] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5202] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5201] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5201] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5202] <... futex resumed>) = 0 [pid 5201] <... futex resumed>) = 1 [pid 5202] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [pid 5201] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5202] <... open resumed>) = 7 [pid 5202] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5201] <... futex resumed>) = 0 [pid 5201] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5201] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5202] <... futex resumed>) = 1 [pid 5202] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = 20480 [pid 5202] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5201] <... futex resumed>) = 0 [pid 5202] <... futex resumed>) = 1 [pid 5201] exit_group(0 [pid 5202] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5201] <... exit_group resumed>) = ? [pid 5202] <... futex resumed>) = ? [pid 5202] +++ exited with 0 +++ [pid 5201] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5201, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- umount2("./65", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./65", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./65/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./65/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./65/binderfs") = 0 umount2("./65/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./65/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./65/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./65/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./65/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./65/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./65") = 0 mkdir("./66", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5203 ./strace-static-x86_64: Process 5203 attached [pid 5203] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5203] chdir("./66") = 0 [pid 5203] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5203] setpgid(0, 0) = 0 [pid 5203] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5203] write(3, "1000", 4) = 4 [pid 5203] close(3) = 0 [pid 5203] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5203] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5203] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5203] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5203] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5204 attached [pid 5204] set_robust_list(0x7fa3182639e0, 24) = 0 [pid 5204] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5203] <... clone resumed>, parent_tid=[5204], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5204 [pid 5203] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5204] <... futex resumed>) = 0 [pid 5203] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5204] memfd_create("syzkaller", 0) = 3 [pid 5204] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [pid 5204] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5204] munmap(0x7fa30fe43000, 524288) = 0 [pid 5204] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5204] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5204] close(3) = 0 [pid 5204] mkdir("./file0", 0777) = 0 [pid 5204] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5204] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5204] chdir("./file0") = 0 [pid 5204] ioctl(4, LOOP_CLR_FD) = 0 [pid 5204] close(4) = 0 [pid 5204] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5203] <... futex resumed>) = 0 [pid 5203] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5203] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5204] <... futex resumed>) = 1 [pid 5204] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 4 [pid 5204] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5204] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5203] <... futex resumed>) = 0 [pid 5203] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5203] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5204] <... futex resumed>) = 0 [pid 5204] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = 5 [pid 5204] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5203] <... futex resumed>) = 0 [pid 5203] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5203] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5204] <... futex resumed>) = 1 [pid 5204] openat(-1, "/proc/self/exe", O_RDONLY) = 6 [pid 5204] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5203] <... futex resumed>) = 0 [pid 5203] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5203] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5204] <... futex resumed>) = 1 [ 65.356377][ T5204] loop0: detected capacity change from 0 to 1024 [ 65.365726][ T5204] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 65.376366][ T5204] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 65.387935][ T5204] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5204] sendfile(5, 6, NULL, 140737974943952) = 65536 [pid 5204] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5203] <... futex resumed>) = 0 [pid 5204] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5203] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5204] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5203] <... futex resumed>) = 0 [pid 5203] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5204] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = -1 ENOSPC (No space left on device) [pid 5204] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5203] <... futex resumed>) = 0 [pid 5203] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5203] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5204] ftruncate(4, 31) = 0 [pid 5204] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5203] <... futex resumed>) = 0 [pid 5203] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5203] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5204] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 7 [pid 5204] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5203] <... futex resumed>) = 0 [pid 5203] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5203] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5204] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = 20480 [pid 5204] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5203] <... futex resumed>) = 0 [pid 5203] exit_group(0) = ? [pid 5204] +++ exited with 0 +++ [pid 5203] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5203, si_uid=0, si_status=0, si_utime=0, si_stime=7 /* 0.07 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./66", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./66", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./66/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./66/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./66/binderfs") = 0 umount2("./66/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./66/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./66/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./66/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./66/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./66/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./66") = 0 mkdir("./67", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5205 attached , child_tidptr=0x55555702f5d0) = 5205 [pid 5205] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5205] chdir("./67") = 0 [pid 5205] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5205] setpgid(0, 0) = 0 [pid 5205] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5205] write(3, "1000", 4) = 4 [pid 5205] close(3) = 0 [pid 5205] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5205] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5205] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5205] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5205] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5206 attached , parent_tid=[5206], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5206 [pid 5205] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5205] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5206] set_robust_list(0x7fa3182639e0, 24) = 0 [pid 5206] memfd_create("syzkaller", 0) = 3 [pid 5206] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [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"..., 524288) = 524288 [pid 5206] munmap(0x7fa30fe43000, 524288) = 0 [pid 5206] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5206] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5206] close(3) = 0 [pid 5206] mkdir("./file0", 0777) = 0 [pid 5206] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 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] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5206] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5205] <... futex resumed>) = 0 [pid 5205] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5205] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5206] <... futex resumed>) = 0 [pid 5206] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 4 [pid 5206] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5205] <... futex resumed>) = 0 [pid 5206] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000 [pid 5205] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5205] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5206] <... open resumed>) = 5 [pid 5206] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5205] <... futex resumed>) = 0 [pid 5206] openat(-1, "/proc/self/exe", O_RDONLY [pid 5205] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5205] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5206] <... openat resumed>) = 6 [pid 5206] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5205] <... futex resumed>) = 0 [pid 5206] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5205] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5206] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5205] <... futex resumed>) = 0 [pid 5206] sendfile(5, 6, NULL, 140737974943952 [ 65.536203][ T5206] loop0: detected capacity change from 0 to 1024 [ 65.545751][ T5206] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 65.556363][ T5206] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 65.568215][ T5206] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5205] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5206] <... sendfile resumed>) = 65536 [pid 5206] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5206] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5205] <... futex resumed>) = 0 [pid 5205] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5206] <... futex resumed>) = 0 [pid 5206] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0 [pid 5205] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5206] <... pwritev2 resumed>) = -1 ENOSPC (No space left on device) [pid 5206] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5205] <... futex resumed>) = 0 [pid 5205] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5205] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5206] <... futex resumed>) = 1 [pid 5206] ftruncate(4, 31) = 0 [pid 5206] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5205] <... futex resumed>) = 0 [pid 5206] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [pid 5205] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5205] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5206] <... open resumed>) = 7 [pid 5206] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5205] <... futex resumed>) = 0 [pid 5206] <... futex resumed>) = 1 [pid 5205] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5205] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5206] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = 20480 [pid 5206] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5205] <... futex resumed>) = 0 [pid 5206] <... futex resumed>) = 1 [pid 5206] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5205] exit_group(0 [pid 5206] <... futex resumed>) = ? [pid 5205] <... exit_group resumed>) = ? [pid 5206] +++ exited with 0 +++ [pid 5205] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5205, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./67", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./67", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./67/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./67/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./67/binderfs") = 0 umount2("./67/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./67/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./67/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./67/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./67/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./67/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./67") = 0 mkdir("./68", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5207 ./strace-static-x86_64: Process 5207 attached [pid 5207] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5207] chdir("./68") = 0 [pid 5207] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5207] setpgid(0, 0) = 0 [pid 5207] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5207] write(3, "1000", 4) = 4 [pid 5207] close(3) = 0 [pid 5207] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5207] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5207] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5207] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5207] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5208 attached , parent_tid=[5208], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5208 [pid 5208] set_robust_list(0x7fa3182639e0, 24) = 0 [pid 5208] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5207] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5208] <... futex resumed>) = 0 [pid 5207] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5208] memfd_create("syzkaller", 0) = 3 [pid 5208] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [pid 5208] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5208] munmap(0x7fa30fe43000, 524288) = 0 [pid 5208] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5208] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5208] close(3) = 0 [pid 5208] mkdir("./file0", 0777) = 0 [pid 5208] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5208] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5208] chdir("./file0") = 0 [pid 5208] ioctl(4, LOOP_CLR_FD) = 0 [pid 5208] close(4) = 0 [pid 5208] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5207] <... futex resumed>) = 0 [pid 5207] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5207] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5208] <... futex resumed>) = 1 [pid 5208] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 4 [pid 5208] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5207] <... futex resumed>) = 0 [pid 5207] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5207] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5208] <... futex resumed>) = 1 [pid 5208] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = 5 [pid 5208] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5207] <... futex resumed>) = 0 [pid 5207] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5208] openat(-1, "/proc/self/exe", O_RDONLY [pid 5207] <... futex resumed>) = 0 [pid 5207] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5208] <... openat resumed>) = 6 [pid 5208] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5207] <... futex resumed>) = 0 [pid 5207] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5208] sendfile(5, 6, NULL, 140737974943952 [pid 5207] <... futex resumed>) = 0 [ 65.725733][ T5208] loop0: detected capacity change from 0 to 1024 [ 65.736188][ T5208] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 65.746453][ T5208] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 65.758229][ T5208] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5207] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5208] <... sendfile resumed>) = 65536 [pid 5208] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5207] <... futex resumed>) = 0 [pid 5207] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5208] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0 [pid 5207] <... futex resumed>) = 0 [pid 5207] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5208] <... pwritev2 resumed>) = -1 ENOSPC (No space left on device) [pid 5208] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5207] <... futex resumed>) = 0 [pid 5207] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5207] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5208] ftruncate(4, 31) = 0 [pid 5208] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5207] <... futex resumed>) = 0 [pid 5208] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [pid 5207] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5207] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5208] <... open resumed>) = 7 [pid 5208] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5207] <... futex resumed>) = 0 [pid 5207] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5208] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0 [pid 5207] <... futex resumed>) = 0 [pid 5207] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5208] <... pwritev2 resumed>) = 20480 [pid 5208] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5207] <... futex resumed>) = 0 [pid 5207] exit_group(0) = ? [pid 5208] +++ exited with 0 +++ [pid 5207] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5207, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./68", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./68", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./68/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./68/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./68/binderfs") = 0 umount2("./68/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./68/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./68/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./68/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./68/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./68/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./68") = 0 mkdir("./69", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5209 ./strace-static-x86_64: Process 5209 attached [pid 5209] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5209] chdir("./69") = 0 [pid 5209] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5209] setpgid(0, 0) = 0 [pid 5209] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5209] write(3, "1000", 4) = 4 [pid 5209] close(3) = 0 [pid 5209] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5209] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5209] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5209] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5209] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5210 attached , parent_tid=[5210], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5210 [pid 5209] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5210] set_robust_list(0x7fa3182639e0, 24 [pid 5209] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5210] <... set_robust_list resumed>) = 0 [pid 5210] memfd_create("syzkaller", 0) = 3 [pid 5210] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [pid 5210] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5210] munmap(0x7fa30fe43000, 524288) = 0 [pid 5210] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5210] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5210] close(3) = 0 [pid 5210] mkdir("./file0", 0777) = 0 [pid 5210] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5210] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5210] chdir("./file0") = 0 [pid 5210] ioctl(4, LOOP_CLR_FD) = 0 [pid 5210] close(4) = 0 [pid 5210] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5209] <... futex resumed>) = 0 [pid 5210] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5209] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5209] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5210] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5210] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 4 [pid 5210] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5209] <... futex resumed>) = 0 [pid 5210] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000 [pid 5209] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5209] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5210] <... open resumed>) = 5 [pid 5210] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5209] <... futex resumed>) = 0 [pid 5210] openat(-1, "/proc/self/exe", O_RDONLY [pid 5209] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5210] <... openat resumed>) = 6 [pid 5209] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5210] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5209] <... futex resumed>) = 0 [pid 5209] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5210] sendfile(5, 6, NULL, 140737974943952 [pid 5209] <... futex resumed>) = 0 [ 65.917972][ T5210] loop0: detected capacity change from 0 to 1024 [ 65.928262][ T5210] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 65.938779][ T5210] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 65.950887][ T5210] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5209] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5210] <... sendfile resumed>) = 65536 [pid 5210] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5209] <... futex resumed>) = 0 [pid 5209] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5209] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5210] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = -1 ENOSPC (No space left on device) [pid 5210] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5209] <... futex resumed>) = 0 [pid 5209] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5209] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5210] ftruncate(4, 31) = 0 [pid 5210] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5209] <... futex resumed>) = 0 [pid 5209] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5209] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5210] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 7 [pid 5210] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5209] <... futex resumed>) = 0 [pid 5209] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5209] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5210] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = 20480 [pid 5210] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5209] <... futex resumed>) = 0 [pid 5209] exit_group(0) = ? [pid 5210] +++ exited with 0 +++ [pid 5209] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5209, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- umount2("./69", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./69", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./69/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./69/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./69/binderfs") = 0 umount2("./69/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./69/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./69/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./69/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./69/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./69/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./69") = 0 mkdir("./70", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5211 ./strace-static-x86_64: Process 5211 attached [pid 5211] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5211] chdir("./70") = 0 [pid 5211] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5211] setpgid(0, 0) = 0 [pid 5211] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5211] write(3, "1000", 4) = 4 [pid 5211] close(3) = 0 [pid 5211] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5211] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5211] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5211] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5211] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5212 attached , parent_tid=[5212], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5212 [pid 5212] set_robust_list(0x7fa3182639e0, 24) = 0 [pid 5212] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5211] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5212] <... futex resumed>) = 0 [pid 5212] memfd_create("syzkaller", 0 [pid 5211] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5212] <... memfd_create resumed>) = 3 [pid 5212] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [pid 5212] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5212] munmap(0x7fa30fe43000, 524288) = 0 [pid 5212] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5212] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5212] close(3) = 0 [pid 5212] mkdir("./file0", 0777) = 0 [pid 5212] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5212] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5212] chdir("./file0") = 0 [pid 5212] ioctl(4, LOOP_CLR_FD) = 0 [pid 5212] close(4) = 0 [pid 5212] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5212] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5211] <... futex resumed>) = 0 [pid 5211] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5211] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5212] <... futex resumed>) = 0 [pid 5212] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 4 [pid 5212] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5211] <... futex resumed>) = 0 [pid 5211] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5211] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5212] <... futex resumed>) = 1 [pid 5212] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = 5 [pid 5212] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5211] <... futex resumed>) = 0 [pid 5211] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5211] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5212] <... futex resumed>) = 1 [pid 5212] openat(-1, "/proc/self/exe", O_RDONLY) = 6 [pid 5212] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5211] <... futex resumed>) = 0 [pid 5211] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5211] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5212] <... futex resumed>) = 1 [ 66.119706][ T5212] loop0: detected capacity change from 0 to 1024 [ 66.129517][ T5212] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 66.140309][ T5212] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 66.153087][ T5212] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5212] sendfile(5, 6, NULL, 140737974943952) = 65536 [pid 5212] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5211] <... futex resumed>) = 0 [pid 5212] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0 [pid 5211] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5211] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5212] <... pwritev2 resumed>) = -1 ENOSPC (No space left on device) [pid 5212] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5211] <... futex resumed>) = 0 [pid 5212] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5211] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5211] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5212] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5212] ftruncate(4, 31) = 0 [pid 5212] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5211] <... futex resumed>) = 0 [pid 5212] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [pid 5211] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5212] <... open resumed>) = 7 [pid 5211] <... futex resumed>) = 0 [pid 5212] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5211] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5212] <... futex resumed>) = 0 [pid 5211] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5212] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0 [pid 5211] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5211] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5212] <... pwritev2 resumed>) = 20480 [pid 5212] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5211] <... futex resumed>) = 0 [pid 5211] exit_group(0) = ? [pid 5212] <... futex resumed>) = ? [pid 5212] +++ exited with 0 +++ [pid 5211] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5211, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- umount2("./70", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./70", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./70/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./70/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./70/binderfs") = 0 umount2("./70/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./70/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./70/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./70/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./70/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./70/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./70") = 0 mkdir("./71", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5213 attached , child_tidptr=0x55555702f5d0) = 5213 [pid 5213] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5213] chdir("./71") = 0 [pid 5213] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5213] setpgid(0, 0) = 0 [pid 5213] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5213] write(3, "1000", 4) = 4 [pid 5213] close(3) = 0 [pid 5213] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5213] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5213] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5213] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5213] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5214], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5214 [pid 5213] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5213] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5214 attached [pid 5214] set_robust_list(0x7fa3182639e0, 24) = 0 [pid 5214] memfd_create("syzkaller", 0) = 3 [pid 5214] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [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"..., 524288) = 524288 [pid 5214] munmap(0x7fa30fe43000, 524288) = 0 [pid 5214] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5214] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5214] close(3) = 0 [pid 5214] mkdir("./file0", 0777) = 0 [pid 5214] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5214] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5214] chdir("./file0") = 0 [pid 5214] ioctl(4, LOOP_CLR_FD) = 0 [pid 5214] close(4) = 0 [pid 5214] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5213] <... futex resumed>) = 0 [pid 5213] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5213] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5214] <... futex resumed>) = 1 [pid 5214] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 4 [pid 5214] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5213] <... futex resumed>) = 0 [pid 5213] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5213] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5214] <... futex resumed>) = 1 [pid 5214] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = 5 [pid 5214] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5213] <... futex resumed>) = 0 [pid 5213] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5213] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5214] <... futex resumed>) = 1 [pid 5214] openat(-1, "/proc/self/exe", O_RDONLY) = 6 [pid 5214] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5213] <... futex resumed>) = 0 [pid 5213] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5213] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5214] <... futex resumed>) = 1 [ 66.314641][ T5214] loop0: detected capacity change from 0 to 1024 [ 66.324713][ T5214] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 66.334934][ T5214] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 66.346585][ T5214] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5214] sendfile(5, 6, NULL, 140737974943952) = 65536 [pid 5214] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5213] <... futex resumed>) = 0 [pid 5213] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5213] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5214] <... futex resumed>) = 1 [pid 5214] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = -1 ENOSPC (No space left on device) [pid 5214] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5213] <... futex resumed>) = 0 [pid 5213] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5213] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5214] <... futex resumed>) = 1 [pid 5214] ftruncate(4, 31) = 0 [pid 5214] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5213] <... futex resumed>) = 0 [pid 5213] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5213] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5214] <... futex resumed>) = 1 [pid 5214] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 7 [pid 5214] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5213] <... futex resumed>) = 0 [pid 5213] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5213] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5214] <... futex resumed>) = 1 [pid 5214] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = 20480 [pid 5214] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5213] <... futex resumed>) = 0 [pid 5213] exit_group(0) = ? [pid 5214] +++ exited with 0 +++ [pid 5213] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5213, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./71", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./71", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./71/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./71/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./71/binderfs") = 0 umount2("./71/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./71/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./71/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./71/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./71/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./71/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./71") = 0 mkdir("./72", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5215 ./strace-static-x86_64: Process 5215 attached [pid 5215] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5215] chdir("./72") = 0 [pid 5215] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5215] setpgid(0, 0) = 0 [pid 5215] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5215] write(3, "1000", 4) = 4 [pid 5215] close(3) = 0 [pid 5215] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5215] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5215] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5215] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5215] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5216], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5216 [pid 5215] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5215] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5216 attached [pid 5216] set_robust_list(0x7fa3182639e0, 24) = 0 [pid 5216] memfd_create("syzkaller", 0) = 3 [pid 5216] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [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"..., 524288) = 524288 [pid 5216] munmap(0x7fa30fe43000, 524288) = 0 [pid 5216] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5216] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5216] close(3) = 0 [pid 5216] mkdir("./file0", 0777) = 0 [pid 5216] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5216] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5216] chdir("./file0") = 0 [pid 5216] ioctl(4, LOOP_CLR_FD) = 0 [pid 5216] close(4) = 0 [pid 5216] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5216] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5215] <... futex resumed>) = 0 [pid 5215] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5215] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5216] <... futex resumed>) = 0 [pid 5216] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 4 [pid 5216] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5215] <... futex resumed>) = 0 [pid 5215] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5215] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5216] <... futex resumed>) = 1 [pid 5216] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = 5 [pid 5216] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5216] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5215] <... futex resumed>) = 0 [pid 5215] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5215] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5216] <... futex resumed>) = 0 [pid 5216] openat(-1, "/proc/self/exe", O_RDONLY) = 6 [pid 5216] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5215] <... futex resumed>) = 0 [pid 5215] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5215] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5216] <... futex resumed>) = 1 [ 66.475970][ T5216] loop0: detected capacity change from 0 to 1024 [ 66.485400][ T5216] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 66.495986][ T5216] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 66.507808][ T5216] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5216] sendfile(5, 6, NULL, 140737974943952) = 65536 [pid 5216] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5216] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5215] <... futex resumed>) = 0 [pid 5215] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5216] <... futex resumed>) = 0 [pid 5216] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0 [pid 5215] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5216] <... pwritev2 resumed>) = -1 ENOSPC (No space left on device) [pid 5216] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5216] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5215] <... futex resumed>) = 0 [pid 5215] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5216] <... futex resumed>) = 0 [pid 5216] ftruncate(4, 31 [pid 5215] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5216] <... ftruncate resumed>) = 0 [pid 5216] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5216] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5215] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5215] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5216] <... futex resumed>) = 0 [pid 5215] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5216] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 7 [pid 5216] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5215] <... futex resumed>) = 0 [pid 5215] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5216] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0 [pid 5215] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5216] <... pwritev2 resumed>) = 20480 [pid 5216] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5215] <... futex resumed>) = 0 [pid 5215] exit_group(0) = ? [pid 5216] +++ exited with 0 +++ [pid 5215] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5215, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- umount2("./72", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./72", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./72/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./72/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./72/binderfs") = 0 umount2("./72/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./72/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./72/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./72/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./72/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./72/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./72") = 0 mkdir("./73", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5217 ./strace-static-x86_64: Process 5217 attached [pid 5217] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5217] chdir("./73") = 0 [pid 5217] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5217] setpgid(0, 0) = 0 [pid 5217] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5217] write(3, "1000", 4) = 4 [pid 5217] close(3) = 0 [pid 5217] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5217] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5217] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5217] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5217] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5218 attached , parent_tid=[5218], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5218 [pid 5217] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5217] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5218] set_robust_list(0x7fa3182639e0, 24) = 0 [pid 5218] memfd_create("syzkaller", 0) = 3 [pid 5218] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [pid 5218] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5218] munmap(0x7fa30fe43000, 524288) = 0 [pid 5218] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5218] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5218] close(3) = 0 [pid 5218] mkdir("./file0", 0777) = 0 [pid 5218] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5218] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5218] chdir("./file0") = 0 [pid 5218] ioctl(4, LOOP_CLR_FD) = 0 [pid 5218] close(4) = 0 [pid 5218] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5217] <... futex resumed>) = 0 [pid 5217] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5217] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5218] <... futex resumed>) = 1 [pid 5218] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 4 [pid 5218] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5217] <... futex resumed>) = 0 [pid 5217] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5217] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5218] <... futex resumed>) = 1 [pid 5218] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = 5 [pid 5218] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5217] <... futex resumed>) = 0 [pid 5217] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5217] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5218] <... futex resumed>) = 1 [pid 5218] openat(-1, "/proc/self/exe", O_RDONLY) = 6 [pid 5218] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5217] <... futex resumed>) = 0 [pid 5217] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5217] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5218] <... futex resumed>) = 1 [ 66.654870][ T5218] loop0: detected capacity change from 0 to 1024 [ 66.666286][ T5218] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 66.676889][ T5218] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 66.689250][ T5218] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5218] sendfile(5, 6, NULL, 140737974943952) = 65536 [pid 5218] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5217] <... futex resumed>) = 0 [pid 5217] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5217] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5218] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = -1 ENOSPC (No space left on device) [pid 5218] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5217] <... futex resumed>) = 0 [pid 5218] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5217] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5218] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5217] <... futex resumed>) = 0 [pid 5218] ftruncate(4, 31 [pid 5217] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5218] <... ftruncate resumed>) = 0 [pid 5218] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5217] <... futex resumed>) = 0 [pid 5218] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5217] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5218] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5217] <... futex resumed>) = 0 [pid 5218] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [pid 5217] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5218] <... open resumed>) = 7 [pid 5218] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5217] <... futex resumed>) = 0 [pid 5217] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5218] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0 [pid 5217] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5218] <... pwritev2 resumed>) = 20480 [pid 5218] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5217] <... futex resumed>) = 0 [pid 5218] <... futex resumed>) = 1 [pid 5217] exit_group(0) = ? [pid 5218] +++ exited with 0 +++ [pid 5217] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5217, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./73", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./73", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./73/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./73/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./73/binderfs") = 0 umount2("./73/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./73/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./73/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./73/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./73/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./73/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./73") = 0 mkdir("./74", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5219 attached , child_tidptr=0x55555702f5d0) = 5219 [pid 5219] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5219] chdir("./74") = 0 [pid 5219] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5219] setpgid(0, 0) = 0 [pid 5219] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5219] write(3, "1000", 4) = 4 [pid 5219] close(3) = 0 [pid 5219] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5219] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5219] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5219] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5219] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5220 attached , parent_tid=[5220], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5220 [pid 5220] set_robust_list(0x7fa3182639e0, 24 [pid 5219] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5220] <... set_robust_list resumed>) = 0 [pid 5220] memfd_create("syzkaller", 0 [pid 5219] <... futex resumed>) = 0 [pid 5220] <... memfd_create resumed>) = 3 [pid 5220] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5219] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5220] <... mmap resumed>) = 0x7fa30fe43000 [pid 5220] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5220] munmap(0x7fa30fe43000, 524288) = 0 [pid 5220] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5220] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5220] close(3) = 0 [pid 5220] mkdir("./file0", 0777) = 0 [pid 5220] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5220] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5220] chdir("./file0") = 0 [pid 5220] ioctl(4, LOOP_CLR_FD) = 0 [pid 5220] close(4) = 0 [pid 5220] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5220] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5219] <... futex resumed>) = 0 [pid 5219] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5219] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5220] <... futex resumed>) = 0 [pid 5220] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 4 [pid 5220] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5219] <... futex resumed>) = 0 [pid 5219] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5219] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5220] <... futex resumed>) = 1 [pid 5220] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = 5 [pid 5220] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5219] <... futex resumed>) = 0 [pid 5219] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5219] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5220] <... futex resumed>) = 1 [pid 5220] openat(-1, "/proc/self/exe", O_RDONLY) = 6 [pid 5220] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5219] <... futex resumed>) = 0 [pid 5220] sendfile(5, 6, NULL, 140737974943952 [pid 5219] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 66.851082][ T5220] loop0: detected capacity change from 0 to 1024 [ 66.860407][ T5220] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 66.870662][ T5220] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 66.882194][ T5220] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5219] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5220] <... sendfile resumed>) = 65536 [pid 5220] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5219] <... futex resumed>) = 0 [pid 5220] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0 [pid 5219] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5219] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5220] <... pwritev2 resumed>) = -1 ENOSPC (No space left on device) [pid 5220] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5219] <... futex resumed>) = 0 [pid 5220] ftruncate(4, 31 [pid 5219] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5220] <... ftruncate resumed>) = 0 [pid 5219] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5220] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5219] <... futex resumed>) = 0 [pid 5220] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [pid 5219] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5219] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5220] <... open resumed>) = 7 [pid 5220] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5219] <... futex resumed>) = 0 [pid 5219] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5220] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0 [pid 5219] <... futex resumed>) = 0 [pid 5219] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5220] <... pwritev2 resumed>) = 20480 [pid 5220] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5219] <... futex resumed>) = 0 [pid 5220] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5219] exit_group(0 [pid 5220] <... futex resumed>) = ? [pid 5219] <... exit_group resumed>) = ? [pid 5220] +++ exited with 0 +++ [pid 5219] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5219, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./74", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./74", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./74/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./74/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./74/binderfs") = 0 umount2("./74/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./74/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./74/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./74/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./74/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./74/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./74") = 0 mkdir("./75", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5221 ./strace-static-x86_64: Process 5221 attached [pid 5221] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5221] chdir("./75") = 0 [pid 5221] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5221] setpgid(0, 0) = 0 [pid 5221] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5221] write(3, "1000", 4) = 4 [pid 5221] close(3) = 0 [pid 5221] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5221] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5221] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5221] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5221] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5222], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5222 [pid 5221] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5221] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5222 attached [pid 5222] set_robust_list(0x7fa3182639e0, 24) = 0 [pid 5222] memfd_create("syzkaller", 0) = 3 [pid 5222] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [pid 5222] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5222] munmap(0x7fa30fe43000, 524288) = 0 [pid 5222] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5222] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5222] close(3) = 0 [pid 5222] mkdir("./file0", 0777) = 0 [pid 5222] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5222] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5222] chdir("./file0") = 0 [pid 5222] ioctl(4, LOOP_CLR_FD) = 0 [pid 5222] close(4) = 0 [pid 5222] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5221] <... futex resumed>) = 0 [pid 5222] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [pid 5221] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5221] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5222] <... open resumed>) = 4 [pid 5222] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5221] <... futex resumed>) = 0 [pid 5222] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5221] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5222] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5221] <... futex resumed>) = 0 [pid 5222] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000 [pid 5221] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5222] <... open resumed>) = 5 [pid 5222] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5221] <... futex resumed>) = 0 [pid 5222] openat(-1, "/proc/self/exe", O_RDONLY [pid 5221] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5221] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5222] <... openat resumed>) = 6 [pid 5222] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5221] <... futex resumed>) = 0 [pid 5222] sendfile(5, 6, NULL, 140737974943952 [pid 5221] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 67.029663][ T5222] loop0: detected capacity change from 0 to 1024 [ 67.039660][ T5222] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 67.050690][ T5222] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 67.063343][ T5222] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5221] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5222] <... sendfile resumed>) = 65536 [pid 5222] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5221] <... futex resumed>) = 0 [pid 5222] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5221] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5222] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5221] <... futex resumed>) = 0 [pid 5222] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0 [pid 5221] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5222] <... pwritev2 resumed>) = -1 ENOSPC (No space left on device) [pid 5222] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5221] <... futex resumed>) = 0 [pid 5221] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5221] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5222] <... futex resumed>) = 1 [pid 5222] ftruncate(4, 31) = 0 [pid 5222] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5221] <... futex resumed>) = 0 [pid 5222] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5221] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5222] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5221] <... futex resumed>) = 0 [pid 5222] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [pid 5221] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5222] <... open resumed>) = 7 [pid 5222] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5221] <... futex resumed>) = 0 [pid 5222] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5221] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5222] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5221] <... futex resumed>) = 0 [pid 5222] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0 [pid 5221] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5222] <... pwritev2 resumed>) = 20480 [pid 5222] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5221] <... futex resumed>) = 0 [pid 5222] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5221] exit_group(0 [pid 5222] <... futex resumed>) = ? [pid 5221] <... exit_group resumed>) = ? [pid 5222] +++ exited with 0 +++ [pid 5221] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5221, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- umount2("./75", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./75", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./75/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./75/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./75/binderfs") = 0 umount2("./75/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./75/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./75/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./75/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./75/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./75/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./75") = 0 mkdir("./76", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5223 ./strace-static-x86_64: Process 5223 attached [pid 5223] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5223] chdir("./76") = 0 [pid 5223] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5223] setpgid(0, 0) = 0 [pid 5223] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5223] write(3, "1000", 4) = 4 [pid 5223] close(3) = 0 [pid 5223] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5223] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5223] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5223] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5223] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5224], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5224 ./strace-static-x86_64: Process 5224 attached [pid 5224] set_robust_list(0x7fa3182639e0, 24) = 0 [pid 5224] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5223] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5224] <... futex resumed>) = 0 [pid 5223] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5224] memfd_create("syzkaller", 0) = 3 [pid 5224] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [pid 5224] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5224] munmap(0x7fa30fe43000, 524288) = 0 [pid 5224] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5224] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5224] close(3) = 0 [pid 5224] mkdir("./file0", 0777) = 0 [pid 5224] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5224] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5224] chdir("./file0") = 0 [pid 5224] ioctl(4, LOOP_CLR_FD) = 0 [pid 5224] close(4) = 0 [pid 5224] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5224] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5223] <... futex resumed>) = 0 [pid 5223] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5223] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5224] <... futex resumed>) = 0 [pid 5224] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 4 [pid 5224] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5223] <... futex resumed>) = 0 [pid 5223] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5223] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5224] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = 5 [pid 5224] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5223] <... futex resumed>) = 0 [pid 5223] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5223] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5224] <... futex resumed>) = 1 [pid 5224] openat(-1, "/proc/self/exe", O_RDONLY) = 6 [pid 5224] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5223] <... futex resumed>) = 0 [pid 5223] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5224] <... futex resumed>) = 1 [pid 5223] <... futex resumed>) = 0 [pid 5223] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [ 67.228103][ T5224] loop0: detected capacity change from 0 to 1024 [ 67.237666][ T5224] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 67.248739][ T5224] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 67.261478][ T5224] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5224] sendfile(5, 6, NULL, 140737974943952) = 65536 [pid 5224] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5223] <... futex resumed>) = 0 [pid 5223] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5223] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5224] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = -1 ENOSPC (No space left on device) [pid 5224] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5223] <... futex resumed>) = 0 [pid 5224] ftruncate(4, 31 [pid 5223] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5223] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5224] <... ftruncate resumed>) = 0 [pid 5224] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5223] <... futex resumed>) = 0 [pid 5224] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5223] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5224] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5224] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 7 [pid 5223] <... futex resumed>) = 0 [pid 5224] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5224] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5223] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5223] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5224] <... futex resumed>) = 0 [pid 5223] <... futex resumed>) = 1 [pid 5224] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0 [pid 5223] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5224] <... pwritev2 resumed>) = 20480 [pid 5224] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5223] <... futex resumed>) = 0 [pid 5224] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5223] exit_group(0) = ? [pid 5224] <... futex resumed>) = ? [pid 5224] +++ exited with 0 +++ [pid 5223] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5223, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./76", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./76", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./76/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./76/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./76/binderfs") = 0 umount2("./76/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./76/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./76/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./76/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./76/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./76/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./76") = 0 mkdir("./77", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5225 ./strace-static-x86_64: Process 5225 attached [pid 5225] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5225] chdir("./77") = 0 [pid 5225] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5225] setpgid(0, 0) = 0 [pid 5225] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5225] write(3, "1000", 4) = 4 [pid 5225] close(3) = 0 [pid 5225] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5225] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5225] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5225] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5225] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5226], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5226 [pid 5225] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5225] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5226 attached [pid 5226] set_robust_list(0x7fa3182639e0, 24) = 0 [pid 5226] memfd_create("syzkaller", 0) = 3 [pid 5226] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [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"..., 524288) = 524288 [pid 5226] munmap(0x7fa30fe43000, 524288) = 0 [pid 5226] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5226] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5226] close(3) = 0 [pid 5226] mkdir("./file0", 0777) = 0 [pid 5226] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5226] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5226] chdir("./file0") = 0 [pid 5226] ioctl(4, LOOP_CLR_FD) = 0 [pid 5226] close(4) = 0 [pid 5226] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5225] <... futex resumed>) = 0 [pid 5226] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [pid 5225] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 67.425792][ T5226] loop0: detected capacity change from 0 to 1024 [ 67.436226][ T5226] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 67.446490][ T5226] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 67.458344][ T5226] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5225] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5226] <... open resumed>) = 4 [pid 5226] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5226] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5225] <... futex resumed>) = 0 [pid 5225] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5226] <... futex resumed>) = 0 [pid 5225] <... futex resumed>) = 1 [pid 5226] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000 [pid 5225] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5226] <... open resumed>) = 5 [pid 5226] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5225] <... futex resumed>) = 0 [pid 5226] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5225] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5226] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5225] <... futex resumed>) = 0 [pid 5226] openat(-1, "/proc/self/exe", O_RDONLY [pid 5225] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5226] <... openat resumed>) = 6 [pid 5226] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5225] <... futex resumed>) = 0 [pid 5226] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5225] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5226] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5225] <... futex resumed>) = 0 [pid 5226] sendfile(5, 6, NULL, 140737974943952 [ 67.471620][ T27] kauditd_printk_skb: 68 callbacks suppressed [ 67.471632][ T27] audit: type=1800 audit(1672320167.245:233): pid=5226 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor164" name="file1" dev="loop0" ino=839 res=0 errno=0 [pid 5225] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5226] <... sendfile resumed>) = 65536 [pid 5226] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5225] <... futex resumed>) = 0 [pid 5226] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0 [pid 5225] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5225] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5226] <... pwritev2 resumed>) = -1 ENOSPC (No space left on device) [pid 5226] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5225] <... futex resumed>) = 0 [pid 5226] <... futex resumed>) = 1 [pid 5225] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5226] ftruncate(4, 31 [pid 5225] <... futex resumed>) = 0 [pid 5226] <... ftruncate resumed>) = 0 [pid 5225] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5226] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5225] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5226] <... futex resumed>) = 0 [pid 5226] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [pid 5225] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5225] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5226] <... open resumed>) = 7 [pid 5226] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5226] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5225] <... futex resumed>) = 0 [pid 5225] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5226] <... futex resumed>) = 0 [pid 5225] <... futex resumed>) = 1 [pid 5226] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0 [ 67.511209][ T27] audit: type=1800 audit(1672320167.285:234): pid=5226 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor164" name="bus" dev="loop0" ino=861 res=0 errno=0 [pid 5225] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5226] <... pwritev2 resumed>) = 20480 [pid 5226] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5225] <... futex resumed>) = 0 [pid 5225] exit_group(0) = ? [pid 5226] <... futex resumed>) = ? [pid 5226] +++ exited with 0 +++ [pid 5225] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5225, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- umount2("./77", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./77", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./77/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./77/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./77/binderfs") = 0 umount2("./77/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./77/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./77/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./77/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./77/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./77/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./77") = 0 mkdir("./78", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5227 ./strace-static-x86_64: Process 5227 attached [pid 5227] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5227] chdir("./78") = 0 [pid 5227] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5227] setpgid(0, 0) = 0 [pid 5227] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5227] write(3, "1000", 4) = 4 [pid 5227] close(3) = 0 [pid 5227] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5227] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5227] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5227] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5227] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5228 attached [pid 5228] set_robust_list(0x7fa3182639e0, 24) = 0 [pid 5228] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5227] <... clone resumed>, parent_tid=[5228], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5228 [pid 5227] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5228] <... futex resumed>) = 0 [pid 5227] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5228] memfd_create("syzkaller", 0) = 3 [pid 5228] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [ 67.561069][ T27] audit: type=1800 audit(1672320167.335:235): pid=5226 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor164" name="file1" dev="loop0" ino=839 res=0 errno=0 [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"..., 524288) = 524288 [pid 5228] munmap(0x7fa30fe43000, 524288) = 0 [pid 5228] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5228] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5228] close(3) = 0 [pid 5228] mkdir("./file0", 0777) = 0 [pid 5228] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5228] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5228] chdir("./file0") = 0 [pid 5228] ioctl(4, LOOP_CLR_FD) = 0 [pid 5228] close(4) = 0 [pid 5228] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5228] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5227] <... futex resumed>) = 0 [pid 5227] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5227] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5228] <... futex resumed>) = 0 [ 67.639601][ T5228] loop0: detected capacity change from 0 to 1024 [ 67.649339][ T5228] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 67.659694][ T5228] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 67.672038][ T5228] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5228] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 4 [pid 5228] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5227] <... futex resumed>) = 0 [pid 5227] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5227] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5228] <... futex resumed>) = 1 [pid 5228] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = 5 [pid 5228] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5227] <... futex resumed>) = 0 [pid 5227] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5227] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5228] <... futex resumed>) = 1 [pid 5228] openat(-1, "/proc/self/exe", O_RDONLY) = 6 [pid 5228] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5227] <... futex resumed>) = 0 [pid 5227] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5227] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5228] <... futex resumed>) = 1 [pid 5228] sendfile(5, 6, NULL, 140737974943952) = 65536 [pid 5228] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5227] <... futex resumed>) = 0 [pid 5227] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5227] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5228] <... futex resumed>) = 1 [ 67.696004][ T27] audit: type=1800 audit(1672320167.475:236): pid=5228 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor164" name="file1" dev="loop0" ino=839 res=0 errno=0 [ 67.717757][ T27] audit: type=1800 audit(1672320167.485:237): pid=5228 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor164" name="bus" dev="loop0" ino=861 res=0 errno=0 [pid 5228] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = -1 ENOSPC (No space left on device) [pid 5228] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5227] <... futex resumed>) = 0 [pid 5227] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5227] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5228] <... futex resumed>) = 1 [pid 5228] ftruncate(4, 31) = 0 [pid 5228] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5227] <... futex resumed>) = 0 [pid 5227] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5227] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5228] <... futex resumed>) = 1 [pid 5228] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 7 [pid 5228] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5228] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5227] <... futex resumed>) = 0 [pid 5227] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5227] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5228] <... futex resumed>) = 0 [pid 5228] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = 20480 [pid 5228] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5227] <... futex resumed>) = 0 [pid 5228] <... futex resumed>) = 1 [pid 5228] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5227] exit_group(0 [pid 5228] <... futex resumed>) = ? [pid 5227] <... exit_group resumed>) = ? [pid 5228] +++ exited with 0 +++ [pid 5227] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5227, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./78", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./78", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./78/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./78/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./78/binderfs") = 0 umount2("./78/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./78/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./78/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./78/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./78/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./78/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./78") = 0 mkdir("./79", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5229 ./strace-static-x86_64: Process 5229 attached [pid 5229] set_robust_list(0x55555702f5e0, 24) = 0 [ 67.762112][ T27] audit: type=1800 audit(1672320167.535:238): pid=5228 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor164" name="file1" dev="loop0" ino=839 res=0 errno=0 [pid 5229] chdir("./79") = 0 [pid 5229] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5229] setpgid(0, 0) = 0 [pid 5229] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5229] write(3, "1000", 4) = 4 [pid 5229] close(3) = 0 [pid 5229] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5229] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5229] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5229] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5229] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5230 attached , parent_tid=[5230], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5230 [pid 5230] set_robust_list(0x7fa3182639e0, 24 [pid 5229] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5229] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5230] <... set_robust_list resumed>) = 0 [pid 5230] memfd_create("syzkaller", 0) = 3 [pid 5230] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [pid 5230] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5230] munmap(0x7fa30fe43000, 524288) = 0 [pid 5230] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5230] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5230] close(3) = 0 [pid 5230] mkdir("./file0", 0777) = 0 [pid 5230] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5230] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5230] chdir("./file0") = 0 [pid 5230] ioctl(4, LOOP_CLR_FD) = 0 [pid 5230] close(4) = 0 [pid 5230] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5229] <... futex resumed>) = 0 [pid 5230] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [ 67.847395][ T5230] loop0: detected capacity change from 0 to 1024 [ 67.856410][ T5230] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 67.866637][ T5230] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 67.878268][ T5230] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5229] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5230] <... open resumed>) = 4 [pid 5230] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5230] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5229] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5229] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5230] <... futex resumed>) = 0 [pid 5229] <... futex resumed>) = 1 [pid 5230] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000 [pid 5229] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5230] <... open resumed>) = 5 [pid 5230] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5230] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5229] <... futex resumed>) = 0 [pid 5229] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5229] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5230] <... futex resumed>) = 0 [pid 5230] openat(-1, "/proc/self/exe", O_RDONLY) = 6 [pid 5230] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5229] <... futex resumed>) = 0 [pid 5229] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5229] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5230] <... futex resumed>) = 1 [pid 5230] sendfile(5, 6, NULL, 140737974943952) = 65536 [pid 5230] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5229] <... futex resumed>) = 0 [pid 5229] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5229] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5230] <... futex resumed>) = 1 [pid 5230] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = -1 ENOSPC (No space left on device) [pid 5230] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5229] <... futex resumed>) = 0 [pid 5229] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5229] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5230] ftruncate(4, 31) = 0 [pid 5230] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5229] <... futex resumed>) = 0 [pid 5229] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 67.890865][ T27] audit: type=1800 audit(1672320167.665:239): pid=5230 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor164" name="file1" dev="loop0" ino=839 res=0 errno=0 [ 67.913632][ T27] audit: type=1800 audit(1672320167.695:240): pid=5230 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor164" name="bus" dev="loop0" ino=861 res=0 errno=0 [pid 5229] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5230] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 7 [pid 5230] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5230] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5229] <... futex resumed>) = 0 [pid 5229] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5229] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5230] <... futex resumed>) = 0 [pid 5230] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = 20480 [pid 5230] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5229] <... futex resumed>) = 0 [pid 5230] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5229] exit_group(0 [pid 5230] <... futex resumed>) = ? [pid 5229] <... exit_group resumed>) = ? [pid 5230] +++ exited with 0 +++ [pid 5229] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5229, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- umount2("./79", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./79", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./79/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./79/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./79/binderfs") = 0 umount2("./79/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./79/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./79/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./79/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./79/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./79/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./79") = 0 mkdir("./80", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5231 ./strace-static-x86_64: Process 5231 attached [pid 5231] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5231] chdir("./80") = 0 [pid 5231] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5231] setpgid(0, 0) = 0 [pid 5231] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5231] write(3, "1000", 4) = 4 [pid 5231] close(3) = 0 [ 67.979296][ T27] audit: type=1800 audit(1672320167.755:241): pid=5230 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor164" name="file1" dev="loop0" ino=839 res=0 errno=0 [pid 5231] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5231] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5231] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5231] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5231] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5232 attached , parent_tid=[5232], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5232 [pid 5231] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5231] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5232] set_robust_list(0x7fa3182639e0, 24) = 0 [pid 5232] memfd_create("syzkaller", 0) = 3 [pid 5232] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [pid 5232] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5232] munmap(0x7fa30fe43000, 524288) = 0 [pid 5232] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5232] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5232] close(3) = 0 [pid 5232] mkdir("./file0", 0777) = 0 [pid 5232] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5232] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5232] chdir("./file0") = 0 [pid 5232] ioctl(4, LOOP_CLR_FD) = 0 [pid 5232] close(4) = 0 [pid 5232] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5232] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5231] <... futex resumed>) = 0 [pid 5231] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5231] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5232] <... futex resumed>) = 0 [ 68.059991][ T5232] loop0: detected capacity change from 0 to 1024 [ 68.069616][ T5232] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 68.079882][ T5232] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 68.091400][ T5232] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5232] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 4 [pid 5232] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5232] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5231] <... futex resumed>) = 0 [pid 5231] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5231] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5232] <... futex resumed>) = 0 [pid 5232] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = 5 [pid 5232] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5231] <... futex resumed>) = 0 [pid 5231] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5231] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5232] <... futex resumed>) = 1 [pid 5232] openat(-1, "/proc/self/exe", O_RDONLY) = 6 [pid 5232] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5231] <... futex resumed>) = 0 [pid 5231] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5231] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5232] <... futex resumed>) = 1 [pid 5232] sendfile(5, 6, NULL, 140737974943952) = 65536 [pid 5232] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5231] <... futex resumed>) = 0 [pid 5231] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5231] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5232] <... futex resumed>) = 1 [ 68.107500][ T27] audit: type=1800 audit(1672320167.885:242): pid=5232 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor164" name="file1" dev="loop0" ino=839 res=0 errno=0 [pid 5232] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = -1 ENOSPC (No space left on device) [pid 5232] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5231] <... futex resumed>) = 0 [pid 5231] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5231] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5232] <... futex resumed>) = 1 [pid 5232] ftruncate(4, 31) = 0 [pid 5232] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5231] <... futex resumed>) = 0 [pid 5232] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [pid 5231] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5231] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5232] <... open resumed>) = 7 [pid 5232] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5231] <... futex resumed>) = 0 [pid 5231] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5232] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0 [pid 5231] <... futex resumed>) = 0 [pid 5231] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5232] <... pwritev2 resumed>) = 20480 [pid 5232] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5231] <... futex resumed>) = 0 [pid 5232] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5231] exit_group(0) = ? [pid 5232] <... futex resumed>) = ? [pid 5232] +++ exited with 0 +++ [pid 5231] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5231, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./80", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./80", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./80/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./80/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./80/binderfs") = 0 umount2("./80/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./80/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./80/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./80/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./80/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./80/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./80") = 0 mkdir("./81", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5233 ./strace-static-x86_64: Process 5233 attached [pid 5233] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5233] chdir("./81") = 0 [pid 5233] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5233] setpgid(0, 0) = 0 [pid 5233] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5233] write(3, "1000", 4) = 4 [pid 5233] close(3) = 0 [pid 5233] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5233] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5233] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5233] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5233] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5234 attached , parent_tid=[5234], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5234 [pid 5234] set_robust_list(0x7fa3182639e0, 24 [pid 5233] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5234] <... set_robust_list resumed>) = 0 [pid 5233] <... futex resumed>) = 0 [pid 5234] memfd_create("syzkaller", 0 [pid 5233] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5234] <... memfd_create resumed>) = 3 [pid 5234] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [pid 5234] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5234] munmap(0x7fa30fe43000, 524288) = 0 [pid 5234] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5234] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5234] close(3) = 0 [pid 5234] mkdir("./file0", 0777) = 0 [pid 5234] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5234] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5234] chdir("./file0") = 0 [pid 5234] ioctl(4, LOOP_CLR_FD) = 0 [pid 5234] close(4) = 0 [pid 5234] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5234] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5233] <... futex resumed>) = 0 [pid 5233] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5234] <... futex resumed>) = 0 [pid 5233] <... futex resumed>) = 1 [pid 5234] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [pid 5233] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5234] <... open resumed>) = 4 [pid 5234] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5233] <... futex resumed>) = 0 [pid 5233] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5234] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000 [pid 5233] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5234] <... open resumed>) = 5 [pid 5234] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5233] <... futex resumed>) = 0 [pid 5234] openat(-1, "/proc/self/exe", O_RDONLY [pid 5233] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5234] <... openat resumed>) = 6 [pid 5233] <... futex resumed>) = 0 [pid 5234] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5233] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5233] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5233] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5234] <... futex resumed>) = 1 [pid 5233] <... futex resumed>) = 0 [pid 5234] sendfile(5, 6, NULL, 140737974943952 [pid 5233] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5234] <... sendfile resumed>) = 65536 [pid 5234] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5233] <... futex resumed>) = 0 [pid 5233] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5233] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5234] <... futex resumed>) = 1 [ 68.265840][ T5234] loop0: detected capacity change from 0 to 1024 [ 68.276339][ T5234] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 68.286761][ T5234] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 68.298444][ T5234] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5234] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = -1 ENOSPC (No space left on device) [pid 5234] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5233] <... futex resumed>) = 0 [pid 5233] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5233] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5234] ftruncate(4, 31) = 0 [pid 5234] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5233] <... futex resumed>) = 0 [pid 5233] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5233] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5234] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 7 [pid 5234] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5233] <... futex resumed>) = 0 [pid 5233] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5233] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5234] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = 20480 [pid 5234] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5233] <... futex resumed>) = 0 [pid 5233] exit_group(0) = ? [pid 5234] +++ exited with 0 +++ [pid 5233] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5233, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./81", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./81", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./81/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./81/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./81/binderfs") = 0 umount2("./81/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./81/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./81/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./81/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./81/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./81/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./81") = 0 mkdir("./82", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5235 ./strace-static-x86_64: Process 5235 attached [pid 5235] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5235] chdir("./82") = 0 [pid 5235] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5235] setpgid(0, 0) = 0 [pid 5235] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5235] write(3, "1000", 4) = 4 [pid 5235] close(3) = 0 [pid 5235] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5235] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5235] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5235] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5235] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5236 attached [pid 5236] set_robust_list(0x7fa3182639e0, 24) = 0 [pid 5236] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5235] <... clone resumed>, parent_tid=[5236], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5236 [pid 5235] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5236] <... futex resumed>) = 0 [pid 5236] memfd_create("syzkaller", 0 [pid 5235] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5236] <... memfd_create resumed>) = 3 [pid 5236] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [pid 5236] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5236] munmap(0x7fa30fe43000, 524288) = 0 [pid 5236] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5236] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5236] close(3) = 0 [pid 5236] mkdir("./file0", 0777) = 0 [pid 5236] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5236] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5236] chdir("./file0") = 0 [pid 5236] ioctl(4, LOOP_CLR_FD) = 0 [pid 5236] close(4) = 0 [pid 5236] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5235] <... futex resumed>) = 0 [pid 5235] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5235] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5236] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 4 [pid 5236] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5235] <... futex resumed>) = 0 [pid 5236] <... futex resumed>) = 1 [pid 5235] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5236] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000 [pid 5235] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5236] <... open resumed>) = 5 [pid 5236] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5235] <... futex resumed>) = 0 [pid 5236] openat(-1, "/proc/self/exe", O_RDONLY [pid 5235] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5236] <... openat resumed>) = 6 [pid 5235] <... futex resumed>) = 0 [pid 5236] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5235] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5236] <... futex resumed>) = 0 [pid 5235] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5236] sendfile(5, 6, NULL, 140737974943952 [pid 5235] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 68.444719][ T5236] loop0: detected capacity change from 0 to 1024 [ 68.457080][ T5236] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 68.467623][ T5236] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 68.479906][ T5236] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5235] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5236] <... sendfile resumed>) = 65536 [pid 5236] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5236] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5235] <... futex resumed>) = 0 [pid 5235] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5235] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5236] <... futex resumed>) = 0 [pid 5236] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = -1 ENOSPC (No space left on device) [pid 5236] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5235] <... futex resumed>) = 0 [pid 5236] <... futex resumed>) = 1 [pid 5236] ftruncate(4, 31 [pid 5235] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5235] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5236] <... ftruncate resumed>) = 0 [pid 5236] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5236] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5235] <... futex resumed>) = 0 [pid 5235] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5236] <... futex resumed>) = 0 [pid 5235] <... futex resumed>) = 1 [pid 5236] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [pid 5235] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5236] <... open resumed>) = 7 [pid 5236] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5235] <... futex resumed>) = 0 [pid 5236] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0 [pid 5235] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5235] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5236] <... pwritev2 resumed>) = 20480 [pid 5236] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5235] <... futex resumed>) = 0 [pid 5236] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5235] exit_group(0) = ? [pid 5236] <... futex resumed>) = ? [pid 5236] +++ exited with 0 +++ [pid 5235] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5235, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./82", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./82", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./82/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./82/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./82/binderfs") = 0 umount2("./82/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./82/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./82/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./82/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./82/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./82/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./82") = 0 mkdir("./83", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5237 ./strace-static-x86_64: Process 5237 attached [pid 5237] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5237] chdir("./83") = 0 [pid 5237] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5237] setpgid(0, 0) = 0 [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] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5237] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5237] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5237] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5238 attached , parent_tid=[5238], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5238 [pid 5238] set_robust_list(0x7fa3182639e0, 24) = 0 [pid 5238] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5237] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5238] <... futex resumed>) = 0 [pid 5237] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5238] memfd_create("syzkaller", 0) = 3 [pid 5238] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [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"..., 524288) = 524288 [pid 5238] munmap(0x7fa30fe43000, 524288) = 0 [pid 5238] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5238] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5238] close(3) = 0 [pid 5238] mkdir("./file0", 0777) = 0 [pid 5238] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5238] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5238] chdir("./file0") = 0 [pid 5238] ioctl(4, LOOP_CLR_FD) = 0 [pid 5238] close(4) = 0 [pid 5238] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5237] <... futex resumed>) = 0 [pid 5237] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5237] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5238] <... futex resumed>) = 1 [pid 5238] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 4 [pid 5238] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5237] <... futex resumed>) = 0 [pid 5238] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000 [pid 5237] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5238] <... open resumed>) = 5 [pid 5237] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5238] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5237] <... futex resumed>) = 0 [pid 5238] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5237] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5238] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5237] <... futex resumed>) = 0 [pid 5238] openat(-1, "/proc/self/exe", O_RDONLY [pid 5237] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5238] <... openat resumed>) = 6 [pid 5238] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5237] <... futex resumed>) = 0 [pid 5237] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5238] sendfile(5, 6, NULL, 140737974943952 [pid 5237] <... futex resumed>) = 0 [ 68.630560][ T5238] loop0: detected capacity change from 0 to 1024 [ 68.640986][ T5238] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 68.651229][ T5238] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 68.664318][ T5238] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5237] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5238] <... sendfile resumed>) = 65536 [pid 5238] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5237] <... futex resumed>) = 0 [pid 5238] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5237] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5238] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5237] <... futex resumed>) = 0 [pid 5238] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0 [pid 5237] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5238] <... pwritev2 resumed>) = -1 ENOSPC (No space left on device) [pid 5238] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5237] <... futex resumed>) = 0 [pid 5238] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5237] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5238] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5237] <... futex resumed>) = 0 [pid 5238] ftruncate(4, 31 [pid 5237] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5238] <... ftruncate resumed>) = 0 [pid 5238] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5237] <... futex resumed>) = 0 [pid 5238] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [pid 5237] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5238] <... open resumed>) = 7 [pid 5237] <... futex resumed>) = 0 [pid 5238] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5237] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5238] <... futex resumed>) = 0 [pid 5237] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5238] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5237] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5237] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5238] <... futex resumed>) = 0 [pid 5238] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = 20480 [pid 5238] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5238] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5237] <... futex resumed>) = 0 [pid 5237] exit_group(0) = ? [pid 5238] <... futex resumed>) = ? [pid 5238] +++ exited with 0 +++ [pid 5237] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5237, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./83", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./83", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./83/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./83/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./83/binderfs") = 0 umount2("./83/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./83/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./83/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./83/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./83/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./83/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./83") = 0 mkdir("./84", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5239 ./strace-static-x86_64: Process 5239 attached [pid 5239] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5239] chdir("./84") = 0 [pid 5239] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5239] setpgid(0, 0) = 0 [pid 5239] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5239] write(3, "1000", 4) = 4 [pid 5239] close(3) = 0 [pid 5239] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5239] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5239] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5239] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5239] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5240], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5240 [pid 5239] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5239] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5240 attached [pid 5240] set_robust_list(0x7fa3182639e0, 24) = 0 [pid 5240] memfd_create("syzkaller", 0) = 3 [pid 5240] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [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"..., 524288) = 524288 [pid 5240] munmap(0x7fa30fe43000, 524288) = 0 [pid 5240] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5240] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5240] close(3) = 0 [pid 5240] mkdir("./file0", 0777) = 0 [pid 5240] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5240] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5240] chdir("./file0") = 0 [pid 5240] ioctl(4, LOOP_CLR_FD) = 0 [pid 5240] close(4) = 0 [pid 5240] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5239] <... futex resumed>) = 0 [pid 5239] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5239] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5240] <... futex resumed>) = 1 [pid 5240] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 4 [pid 5240] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5239] <... futex resumed>) = 0 [pid 5239] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5239] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5240] <... futex resumed>) = 1 [pid 5240] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = 5 [pid 5240] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5239] <... futex resumed>) = 0 [pid 5239] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5239] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5240] <... futex resumed>) = 1 [pid 5240] openat(-1, "/proc/self/exe", O_RDONLY) = 6 [pid 5240] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5239] <... futex resumed>) = 0 [pid 5239] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5239] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5240] <... futex resumed>) = 1 [ 68.802288][ T5240] loop0: detected capacity change from 0 to 1024 [ 68.811753][ T5240] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 68.823152][ T5240] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 68.834999][ T5240] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5240] sendfile(5, 6, NULL, 140737974943952) = 65536 [pid 5240] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5239] <... futex resumed>) = 0 [pid 5240] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5239] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5240] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5239] <... futex resumed>) = 0 [pid 5240] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0 [pid 5239] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5240] <... pwritev2 resumed>) = -1 ENOSPC (No space left on device) [pid 5240] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5239] <... futex resumed>) = 0 [pid 5239] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5239] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5240] ftruncate(4, 31) = 0 [pid 5240] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5239] <... futex resumed>) = 0 [pid 5239] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5240] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [pid 5239] <... futex resumed>) = 0 [pid 5239] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5240] <... open resumed>) = 7 [pid 5240] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5239] <... futex resumed>) = 0 [pid 5239] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5239] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5240] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = 20480 [pid 5240] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5240] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5239] <... futex resumed>) = 0 [pid 5239] exit_group(0 [pid 5240] <... futex resumed>) = ? [pid 5239] <... exit_group resumed>) = ? [pid 5240] +++ exited with 0 +++ [pid 5239] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5239, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- umount2("./84", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./84", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./84/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./84/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./84/binderfs") = 0 umount2("./84/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./84/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./84/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./84/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./84/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./84/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./84") = 0 mkdir("./85", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5241 ./strace-static-x86_64: Process 5241 attached [pid 5241] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5241] chdir("./85") = 0 [pid 5241] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5241] setpgid(0, 0) = 0 [pid 5241] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5241] write(3, "1000", 4) = 4 [pid 5241] close(3) = 0 [pid 5241] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5241] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5241] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5241] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5241] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5242 attached , parent_tid=[5242], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5242 [pid 5241] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5241] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5242] set_robust_list(0x7fa3182639e0, 24) = 0 [pid 5242] memfd_create("syzkaller", 0) = 3 [pid 5242] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [pid 5242] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5242] munmap(0x7fa30fe43000, 524288) = 0 [pid 5242] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5242] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5242] close(3) = 0 [pid 5242] mkdir("./file0", 0777) = 0 [pid 5242] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5242] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5242] chdir("./file0") = 0 [pid 5242] ioctl(4, LOOP_CLR_FD) = 0 [pid 5242] close(4) = 0 [pid 5242] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5242] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5241] <... futex resumed>) = 0 [pid 5241] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5241] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5242] <... futex resumed>) = 0 [pid 5242] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 4 [pid 5242] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5241] <... futex resumed>) = 0 [pid 5241] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5241] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5242] <... futex resumed>) = 1 [pid 5242] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = 5 [pid 5242] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5241] <... futex resumed>) = 0 [pid 5241] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5241] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5242] openat(-1, "/proc/self/exe", O_RDONLY) = 6 [pid 5242] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5241] <... futex resumed>) = 0 [pid 5241] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5241] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [ 69.008376][ T5242] loop0: detected capacity change from 0 to 1024 [ 69.018468][ T5242] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 69.028988][ T5242] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 69.041328][ T5242] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5242] sendfile(5, 6, NULL, 140737974943952) = 65536 [pid 5242] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5241] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5241] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5241] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = 0 [pid 5241] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=49000000} [pid 5242] <... futex resumed>) = 1 [pid 5242] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = -1 ENOSPC (No space left on device) [pid 5242] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5241] <... futex resumed>) = 0 [pid 5242] ftruncate(4, 31 [pid 5241] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5242] <... ftruncate resumed>) = 0 [pid 5241] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5242] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5241] <... futex resumed>) = 0 [pid 5242] <... futex resumed>) = 1 [pid 5242] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [pid 5241] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5241] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5242] <... open resumed>) = 7 [pid 5242] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5241] <... futex resumed>) = 0 [pid 5241] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5242] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0 [pid 5241] <... futex resumed>) = 0 [pid 5241] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5242] <... pwritev2 resumed>) = 20480 [pid 5242] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5241] <... futex resumed>) = 0 [pid 5242] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5241] exit_group(0) = ? [pid 5242] <... futex resumed>) = ? [pid 5242] +++ exited with 0 +++ [pid 5241] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5241, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./85", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./85", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./85/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./85/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./85/binderfs") = 0 umount2("./85/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./85/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./85/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./85/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./85/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./85/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./85") = 0 mkdir("./86", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5243 attached [pid 5243] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5243] chdir("./86") = 0 [pid 5243] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5243] setpgid(0, 0) = 0 [pid 5243] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5243] write(3, "1000", 4) = 4 [pid 5068] <... clone resumed>, child_tidptr=0x55555702f5d0) = 5243 [pid 5243] close(3) = 0 [pid 5243] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5243] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5243] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5243] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5243] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5244 attached , parent_tid=[5244], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5244 [pid 5244] set_robust_list(0x7fa3182639e0, 24 [pid 5243] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5244] <... set_robust_list resumed>) = 0 [pid 5243] <... futex resumed>) = 0 [pid 5243] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5244] memfd_create("syzkaller", 0) = 3 [pid 5244] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [pid 5244] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5244] munmap(0x7fa30fe43000, 524288) = 0 [pid 5244] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5244] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5244] close(3) = 0 [pid 5244] mkdir("./file0", 0777) = 0 [pid 5244] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5244] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5244] chdir("./file0") = 0 [pid 5244] ioctl(4, LOOP_CLR_FD) = 0 [pid 5244] close(4) = 0 [pid 5244] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5243] <... futex resumed>) = 0 [pid 5244] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5243] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5244] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5243] <... futex resumed>) = 0 [pid 5244] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [pid 5243] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5244] <... open resumed>) = 4 [pid 5244] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5243] <... futex resumed>) = 0 [pid 5244] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5243] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5244] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5243] <... futex resumed>) = 0 [pid 5243] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5244] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = 5 [pid 5244] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5243] <... futex resumed>) = 0 [pid 5244] openat(-1, "/proc/self/exe", O_RDONLY [pid 5243] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5244] <... openat resumed>) = 6 [pid 5243] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5244] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5243] <... futex resumed>) = 0 [pid 5244] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5243] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5244] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5243] <... futex resumed>) = 0 [pid 5244] sendfile(5, 6, NULL, 140737974943952 [ 69.219567][ T5244] loop0: detected capacity change from 0 to 1024 [ 69.229914][ T5244] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 69.240359][ T5244] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 69.253247][ T5244] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5243] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5244] <... sendfile resumed>) = 65536 [pid 5244] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5243] <... futex resumed>) = 0 [pid 5243] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5243] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5244] <... futex resumed>) = 1 [pid 5244] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = -1 ENOSPC (No space left on device) [pid 5244] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5243] <... futex resumed>) = 0 [pid 5243] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5243] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5244] <... futex resumed>) = 1 [pid 5244] ftruncate(4, 31) = 0 [pid 5244] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5243] <... futex resumed>) = 0 [pid 5243] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5243] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5244] <... futex resumed>) = 1 [pid 5244] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 7 [pid 5244] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5243] <... futex resumed>) = 0 [pid 5243] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5243] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5244] <... futex resumed>) = 1 [pid 5244] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = 20480 [pid 5244] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5243] <... futex resumed>) = 0 [pid 5243] exit_group(0) = ? [pid 5244] <... futex resumed>) = ? [pid 5244] +++ exited with 0 +++ [pid 5243] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5243, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./86", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./86", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./86/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./86/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./86/binderfs") = 0 umount2("./86/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./86/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./86/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./86/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./86/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./86/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./86") = 0 mkdir("./87", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5245 ./strace-static-x86_64: Process 5245 attached [pid 5245] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5245] chdir("./87") = 0 [pid 5245] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5245] setpgid(0, 0) = 0 [pid 5245] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5245] write(3, "1000", 4) = 4 [pid 5245] close(3) = 0 [pid 5245] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5245] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5245] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5245] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5245] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5246 attached , parent_tid=[5246], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5246 [pid 5246] set_robust_list(0x7fa3182639e0, 24) = 0 [pid 5245] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5245] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5246] memfd_create("syzkaller", 0) = 3 [pid 5246] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [pid 5246] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5246] munmap(0x7fa30fe43000, 524288) = 0 [pid 5246] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5246] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5246] close(3) = 0 [pid 5246] mkdir("./file0", 0777) = 0 [pid 5246] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5246] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5246] chdir("./file0") = 0 [pid 5246] ioctl(4, LOOP_CLR_FD) = 0 [pid 5246] close(4) = 0 [pid 5246] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5245] <... futex resumed>) = 0 [pid 5245] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5245] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5246] <... futex resumed>) = 1 [pid 5246] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 4 [pid 5246] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5245] <... futex resumed>) = 0 [pid 5246] <... futex resumed>) = 1 [pid 5245] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5245] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5246] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = 5 [pid 5246] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5245] <... futex resumed>) = 0 [pid 5245] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5245] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5246] <... futex resumed>) = 1 [pid 5246] openat(-1, "/proc/self/exe", O_RDONLY) = 6 [pid 5246] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5245] <... futex resumed>) = 0 [pid 5245] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5245] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5246] <... futex resumed>) = 1 [ 69.410840][ T5246] loop0: detected capacity change from 0 to 1024 [ 69.420986][ T5246] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 69.431677][ T5246] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 69.444722][ T5246] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5246] sendfile(5, 6, NULL, 140737974943952) = 65536 [pid 5246] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5246] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5245] <... futex resumed>) = 0 [pid 5245] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5246] <... futex resumed>) = 0 [pid 5246] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0 [pid 5245] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5246] <... pwritev2 resumed>) = -1 ENOSPC (No space left on device) [pid 5246] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5245] <... futex resumed>) = 0 [pid 5245] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5245] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5246] <... futex resumed>) = 1 [pid 5246] ftruncate(4, 31) = 0 [pid 5246] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5245] <... futex resumed>) = 0 [pid 5246] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5245] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5246] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5245] <... futex resumed>) = 0 [pid 5246] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [pid 5245] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5246] <... open resumed>) = 7 [pid 5246] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5245] <... futex resumed>) = 0 [pid 5246] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0 [pid 5245] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5245] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5246] <... pwritev2 resumed>) = 20480 [pid 5246] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5245] <... futex resumed>) = 0 [pid 5246] <... futex resumed>) = 1 [pid 5246] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5245] exit_group(0 [pid 5246] <... futex resumed>) = ? [pid 5245] <... exit_group resumed>) = ? [pid 5246] +++ exited with 0 +++ [pid 5245] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5245, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./87", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./87", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./87/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./87/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./87/binderfs") = 0 umount2("./87/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./87/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./87/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./87/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./87/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./87/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./87") = 0 mkdir("./88", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5247 ./strace-static-x86_64: Process 5247 attached [pid 5247] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5247] chdir("./88") = 0 [pid 5247] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5247] setpgid(0, 0) = 0 [pid 5247] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5247] write(3, "1000", 4) = 4 [pid 5247] close(3) = 0 [pid 5247] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5247] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5247] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5247] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5247] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5248 attached , parent_tid=[5248], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5248 [pid 5247] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5247] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5248] set_robust_list(0x7fa3182639e0, 24) = 0 [pid 5248] memfd_create("syzkaller", 0) = 3 [pid 5248] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [pid 5248] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5248] munmap(0x7fa30fe43000, 524288) = 0 [pid 5248] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5248] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5248] close(3) = 0 [pid 5248] mkdir("./file0", 0777) = 0 [pid 5248] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5248] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5248] chdir("./file0") = 0 [pid 5248] ioctl(4, LOOP_CLR_FD) = 0 [pid 5248] close(4) = 0 [pid 5248] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5247] <... futex resumed>) = 0 [pid 5247] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5247] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5248] <... futex resumed>) = 1 [pid 5248] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 4 [pid 5248] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5247] <... futex resumed>) = 0 [pid 5247] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5247] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5248] <... futex resumed>) = 1 [pid 5248] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = 5 [pid 5248] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5247] <... futex resumed>) = 0 [pid 5247] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5247] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5248] <... futex resumed>) = 1 [pid 5248] openat(-1, "/proc/self/exe", O_RDONLY) = 6 [pid 5248] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5247] <... futex resumed>) = 0 [pid 5247] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5247] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5248] <... futex resumed>) = 1 [ 69.598000][ T5248] loop0: detected capacity change from 0 to 1024 [ 69.608346][ T5248] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 69.618714][ T5248] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 69.631913][ T5248] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5248] sendfile(5, 6, NULL, 140737974943952) = 65536 [pid 5248] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5247] <... futex resumed>) = 0 [pid 5248] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5247] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5248] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5247] <... futex resumed>) = 0 [pid 5248] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0 [pid 5247] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5248] <... pwritev2 resumed>) = -1 ENOSPC (No space left on device) [pid 5248] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5247] <... futex resumed>) = 0 [pid 5248] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5247] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5248] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5247] <... futex resumed>) = 0 [pid 5248] ftruncate(4, 31 [pid 5247] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5248] <... ftruncate resumed>) = 0 [pid 5248] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5247] <... futex resumed>) = 0 [pid 5247] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5247] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5248] <... futex resumed>) = 1 [pid 5248] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 7 [pid 5248] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5247] <... futex resumed>) = 0 [pid 5247] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5247] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5248] <... futex resumed>) = 1 [pid 5248] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = 20480 [pid 5248] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5247] <... futex resumed>) = 0 [pid 5248] <... futex resumed>) = 1 [pid 5247] exit_group(0 [pid 5248] ???( [pid 5247] <... exit_group resumed>) = ? [pid 5248] <... ??? resumed>) = ? [pid 5248] +++ exited with 0 +++ [pid 5247] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5247, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- umount2("./88", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./88", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./88/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./88/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./88/binderfs") = 0 umount2("./88/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./88/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./88/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./88/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./88/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./88/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./88") = 0 mkdir("./89", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5249 attached , child_tidptr=0x55555702f5d0) = 5249 [pid 5249] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5249] chdir("./89") = 0 [pid 5249] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5249] setpgid(0, 0) = 0 [pid 5249] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5249] write(3, "1000", 4) = 4 [pid 5249] close(3) = 0 [pid 5249] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5249] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5249] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5249] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5249] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5250], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5250 [pid 5249] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5249] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5250 attached [pid 5250] set_robust_list(0x7fa3182639e0, 24) = 0 [pid 5250] memfd_create("syzkaller", 0) = 3 [pid 5250] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [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"..., 524288) = 524288 [pid 5250] munmap(0x7fa30fe43000, 524288) = 0 [pid 5250] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5250] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5250] close(3) = 0 [pid 5250] mkdir("./file0", 0777) = 0 [pid 5250] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5250] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5250] chdir("./file0") = 0 [pid 5250] ioctl(4, LOOP_CLR_FD) = 0 [pid 5250] close(4) = 0 [pid 5250] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5250] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5249] <... futex resumed>) = 0 [pid 5249] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5249] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5250] <... futex resumed>) = 0 [pid 5250] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 4 [pid 5250] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5249] <... futex resumed>) = 0 [pid 5249] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5249] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5250] <... futex resumed>) = 1 [pid 5250] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = 5 [pid 5250] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5250] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5249] <... futex resumed>) = 0 [pid 5249] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5249] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5250] <... futex resumed>) = 0 [pid 5250] openat(-1, "/proc/self/exe", O_RDONLY) = 6 [pid 5250] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5249] <... futex resumed>) = 0 [pid 5250] sendfile(5, 6, NULL, 140737974943952 [pid 5249] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 69.773449][ T5250] loop0: detected capacity change from 0 to 1024 [ 69.783432][ T5250] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 69.793906][ T5250] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 69.806296][ T5250] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5249] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5250] <... sendfile resumed>) = 65536 [pid 5250] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5250] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5249] <... futex resumed>) = 0 [pid 5249] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5249] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5250] <... futex resumed>) = 0 [pid 5250] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = -1 ENOSPC (No space left on device) [pid 5250] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5249] <... futex resumed>) = 0 [pid 5250] ftruncate(4, 31 [pid 5249] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5249] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5250] <... ftruncate resumed>) = 0 [pid 5250] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5249] <... futex resumed>) = 0 [pid 5250] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [pid 5249] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5249] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5250] <... open resumed>) = 7 [pid 5250] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5249] <... futex resumed>) = 0 [pid 5250] <... futex resumed>) = 1 [pid 5250] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0 [pid 5249] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5249] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5250] <... pwritev2 resumed>) = 20480 [pid 5250] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5249] <... futex resumed>) = 0 [pid 5250] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5249] exit_group(0) = ? [pid 5250] <... futex resumed>) = ? [pid 5250] +++ exited with 0 +++ [pid 5249] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5249, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- umount2("./89", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./89", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./89/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./89/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./89/binderfs") = 0 umount2("./89/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./89/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./89/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./89/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./89/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./89/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./89") = 0 mkdir("./90", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5251 ./strace-static-x86_64: Process 5251 attached [pid 5251] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5251] chdir("./90") = 0 [pid 5251] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5251] setpgid(0, 0) = 0 [pid 5251] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5251] write(3, "1000", 4) = 4 [pid 5251] close(3) = 0 [pid 5251] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5251] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5251] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5251] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5251] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5252 attached , parent_tid=[5252], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5252 [pid 5251] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5251] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5252] set_robust_list(0x7fa3182639e0, 24) = 0 [pid 5252] memfd_create("syzkaller", 0) = 3 [pid 5252] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [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"..., 524288) = 524288 [pid 5252] munmap(0x7fa30fe43000, 524288) = 0 [pid 5252] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5252] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5252] close(3) = 0 [pid 5252] mkdir("./file0", 0777) = 0 [pid 5252] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5252] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5252] chdir("./file0") = 0 [pid 5252] ioctl(4, LOOP_CLR_FD) = 0 [pid 5252] close(4) = 0 [pid 5252] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5252] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5251] <... futex resumed>) = 0 [pid 5251] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5251] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5252] <... futex resumed>) = 0 [pid 5252] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 4 [pid 5252] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5251] <... futex resumed>) = 0 [pid 5251] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5251] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5252] <... futex resumed>) = 1 [pid 5252] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = 5 [pid 5252] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5251] <... futex resumed>) = 0 [pid 5252] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5251] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5251] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5252] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5252] openat(-1, "/proc/self/exe", O_RDONLY) = 6 [pid 5252] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5251] <... futex resumed>) = 0 [pid 5252] sendfile(5, 6, NULL, 140737974943952 [pid 5251] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 69.956574][ T5252] loop0: detected capacity change from 0 to 1024 [ 69.965879][ T5252] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 69.976652][ T5252] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 69.989245][ T5252] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5251] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5252] <... sendfile resumed>) = 65536 [pid 5252] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5251] <... futex resumed>) = 0 [pid 5251] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5251] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5252] <... futex resumed>) = 1 [pid 5252] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = -1 ENOSPC (No space left on device) [pid 5252] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5251] <... futex resumed>) = 0 [pid 5251] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5251] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5252] <... futex resumed>) = 1 [pid 5252] ftruncate(4, 31) = 0 [pid 5252] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5251] <... futex resumed>) = 0 [pid 5251] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5251] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5252] <... futex resumed>) = 1 [pid 5252] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 7 [pid 5252] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5251] <... futex resumed>) = 0 [pid 5251] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5251] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5252] <... futex resumed>) = 1 [pid 5252] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = 20480 [pid 5252] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5251] <... futex resumed>) = 0 [pid 5252] <... futex resumed>) = 1 [pid 5252] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5251] exit_group(0) = ? [pid 5252] <... futex resumed>) = ? [pid 5252] +++ exited with 0 +++ [pid 5251] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5251, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- umount2("./90", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./90", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./90/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./90/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./90/binderfs") = 0 umount2("./90/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./90/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./90/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./90/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./90/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./90/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./90") = 0 mkdir("./91", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5253 ./strace-static-x86_64: Process 5253 attached [pid 5253] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5253] chdir("./91") = 0 [pid 5253] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5253] setpgid(0, 0) = 0 [pid 5253] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5253] write(3, "1000", 4) = 4 [pid 5253] close(3) = 0 [pid 5253] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5253] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5253] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5253] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5253] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5254], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5254 [pid 5253] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5253] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5254 attached [pid 5254] set_robust_list(0x7fa3182639e0, 24) = 0 [pid 5254] memfd_create("syzkaller", 0) = 3 [pid 5254] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [pid 5254] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5254] munmap(0x7fa30fe43000, 524288) = 0 [pid 5254] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5254] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5254] close(3) = 0 [pid 5254] mkdir("./file0", 0777) = 0 [pid 5254] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5254] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5254] chdir("./file0") = 0 [pid 5254] ioctl(4, LOOP_CLR_FD) = 0 [pid 5254] close(4) = 0 [pid 5254] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5253] <... futex resumed>) = 0 [pid 5253] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5253] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5254] <... futex resumed>) = 1 [pid 5254] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 4 [pid 5254] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5253] <... futex resumed>) = 0 [pid 5253] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5253] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5254] <... futex resumed>) = 1 [pid 5254] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = 5 [pid 5254] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5253] <... futex resumed>) = 0 [pid 5253] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5253] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5254] openat(-1, "/proc/self/exe", O_RDONLY) = 6 [pid 5254] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5253] <... futex resumed>) = 0 [pid 5253] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5253] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [ 70.140689][ T5254] loop0: detected capacity change from 0 to 1024 [ 70.150375][ T5254] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 70.161039][ T5254] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 70.173333][ T5254] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5254] sendfile(5, 6, NULL, 140737974943952) = 65536 [pid 5254] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5253] <... futex resumed>) = 0 [pid 5253] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5253] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5254] <... futex resumed>) = 1 [pid 5254] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = -1 ENOSPC (No space left on device) [pid 5254] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5253] <... futex resumed>) = 0 [pid 5253] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5253] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5254] ftruncate(4, 31) = 0 [pid 5254] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5253] <... futex resumed>) = 0 [pid 5253] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5253] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5254] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 7 [pid 5254] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5253] <... futex resumed>) = 0 [pid 5253] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5253] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5254] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = 20480 [pid 5254] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5253] <... futex resumed>) = 0 [pid 5254] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5253] exit_group(0) = ? [pid 5254] <... futex resumed>) = ? [pid 5254] +++ exited with 0 +++ [pid 5253] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5253, si_uid=0, si_status=0, si_utime=0, si_stime=7 /* 0.07 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./91", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./91", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./91/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./91/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./91/binderfs") = 0 umount2("./91/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./91/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./91/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./91/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./91/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./91/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./91") = 0 mkdir("./92", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5255 ./strace-static-x86_64: Process 5255 attached [pid 5255] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5255] chdir("./92") = 0 [pid 5255] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5255] setpgid(0, 0) = 0 [pid 5255] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5255] write(3, "1000", 4) = 4 [pid 5255] close(3) = 0 [pid 5255] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5255] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5255] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5255] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5255] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5256], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5256 [pid 5255] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5255] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5256 attached [pid 5256] set_robust_list(0x7fa3182639e0, 24) = 0 [pid 5256] memfd_create("syzkaller", 0) = 3 [pid 5256] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [pid 5256] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5256] munmap(0x7fa30fe43000, 524288) = 0 [pid 5256] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5256] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5256] close(3) = 0 [pid 5256] mkdir("./file0", 0777) = 0 [pid 5256] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5256] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5256] chdir("./file0") = 0 [pid 5256] ioctl(4, LOOP_CLR_FD) = 0 [pid 5256] close(4) = 0 [pid 5256] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5256] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5255] <... futex resumed>) = 0 [pid 5255] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5256] <... futex resumed>) = 0 [pid 5255] <... futex resumed>) = 1 [pid 5256] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [pid 5255] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5256] <... open resumed>) = 4 [pid 5256] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5255] <... futex resumed>) = 0 [pid 5256] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5255] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5256] <... futex resumed>) = 0 [pid 5255] <... futex resumed>) = 1 [pid 5256] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000 [pid 5255] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5256] <... open resumed>) = 5 [pid 5256] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5255] <... futex resumed>) = 0 [pid 5256] openat(-1, "/proc/self/exe", O_RDONLY [pid 5255] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5256] <... openat resumed>) = 6 [pid 5255] <... futex resumed>) = 0 [pid 5256] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5255] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5256] <... futex resumed>) = 0 [pid 5255] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5256] sendfile(5, 6, NULL, 140737974943952 [pid 5255] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 70.315937][ T5256] loop0: detected capacity change from 0 to 1024 [ 70.325737][ T5256] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 70.335974][ T5256] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 70.347723][ T5256] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5255] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5256] <... sendfile resumed>) = 65536 [pid 5256] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5255] <... futex resumed>) = 0 [pid 5256] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0 [pid 5255] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5255] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5256] <... pwritev2 resumed>) = -1 ENOSPC (No space left on device) [pid 5256] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5255] <... futex resumed>) = 0 [pid 5256] <... futex resumed>) = 1 [pid 5256] ftruncate(4, 31 [pid 5255] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5255] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5256] <... ftruncate resumed>) = 0 [pid 5256] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5255] <... futex resumed>) = 0 [pid 5256] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [pid 5255] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5255] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5256] <... open resumed>) = 7 [pid 5256] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5255] <... futex resumed>) = 0 [pid 5256] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0 [pid 5255] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5255] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5256] <... pwritev2 resumed>) = 20480 [pid 5256] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5255] <... futex resumed>) = 0 [pid 5256] <... futex resumed>) = 1 [pid 5255] exit_group(0 [pid 5256] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL) = ? [pid 5255] <... exit_group resumed>) = ? [pid 5256] +++ exited with 0 +++ [pid 5255] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5255, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./92", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./92", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./92/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./92/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./92/binderfs") = 0 umount2("./92/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./92/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./92/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./92/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./92/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./92/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./92") = 0 mkdir("./93", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5257 ./strace-static-x86_64: Process 5257 attached [pid 5257] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5257] chdir("./93") = 0 [pid 5257] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5257] setpgid(0, 0) = 0 [pid 5257] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5257] write(3, "1000", 4) = 4 [pid 5257] close(3) = 0 [pid 5257] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5257] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5257] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5257] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5257] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5258], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5258 [pid 5257] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5257] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5258 attached [pid 5258] set_robust_list(0x7fa3182639e0, 24) = 0 [pid 5258] memfd_create("syzkaller", 0) = 3 [pid 5258] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [pid 5258] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5258] munmap(0x7fa30fe43000, 524288) = 0 [pid 5258] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5258] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5258] close(3) = 0 [pid 5258] mkdir("./file0", 0777) = 0 [pid 5258] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5258] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5258] chdir("./file0") = 0 [pid 5258] ioctl(4, LOOP_CLR_FD) = 0 [pid 5258] close(4) = 0 [pid 5258] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5257] <... futex resumed>) = 0 [pid 5257] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5257] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5258] <... futex resumed>) = 1 [pid 5258] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 4 [pid 5258] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5257] <... futex resumed>) = 0 [pid 5257] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5258] <... futex resumed>) = 1 [pid 5257] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5258] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = 5 [pid 5258] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5257] <... futex resumed>) = 0 [pid 5257] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5257] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5258] <... futex resumed>) = 1 [pid 5258] openat(-1, "/proc/self/exe", O_RDONLY) = 6 [pid 5258] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5257] <... futex resumed>) = 0 [pid 5258] sendfile(5, 6, NULL, 140737974943952 [pid 5257] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 70.495260][ T5258] loop0: detected capacity change from 0 to 1024 [ 70.505668][ T5258] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 70.516204][ T5258] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 70.528601][ T5258] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5257] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5258] <... sendfile resumed>) = 65536 [pid 5258] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5257] <... futex resumed>) = 0 [pid 5257] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5257] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5258] <... futex resumed>) = 1 [pid 5258] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = -1 ENOSPC (No space left on device) [pid 5258] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5257] <... futex resumed>) = 0 [pid 5258] ftruncate(4, 31 [pid 5257] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5258] <... ftruncate resumed>) = 0 [pid 5257] <... futex resumed>) = 0 [pid 5257] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5258] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5257] <... futex resumed>) = 0 [pid 5257] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5257] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5258] <... futex resumed>) = 1 [pid 5258] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 7 [pid 5258] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5257] <... futex resumed>) = 0 [pid 5257] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5257] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5258] <... futex resumed>) = 1 [pid 5258] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = 20480 [pid 5258] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5257] <... futex resumed>) = 0 [pid 5257] exit_group(0 [pid 5258] ???( [pid 5257] <... exit_group resumed>) = ? [pid 5258] <... ??? resumed>) = ? [pid 5258] +++ exited with 0 +++ [pid 5257] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5257, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} --- umount2("./93", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./93", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./93/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./93/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./93/binderfs") = 0 umount2("./93/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./93/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./93/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./93/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./93/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./93/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./93") = 0 mkdir("./94", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5259 ./strace-static-x86_64: Process 5259 attached [pid 5259] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5259] chdir("./94") = 0 [pid 5259] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5259] setpgid(0, 0) = 0 [pid 5259] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5259] write(3, "1000", 4) = 4 [pid 5259] close(3) = 0 [pid 5259] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5259] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5259] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5259] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5259] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5260], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5260 [pid 5259] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5259] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5260 attached [pid 5260] set_robust_list(0x7fa3182639e0, 24) = 0 [pid 5260] memfd_create("syzkaller", 0) = 3 [pid 5260] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [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"..., 524288) = 524288 [pid 5260] munmap(0x7fa30fe43000, 524288) = 0 [pid 5260] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5260] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5260] close(3) = 0 [pid 5260] mkdir("./file0", 0777) = 0 [pid 5260] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5260] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5260] chdir("./file0") = 0 [pid 5260] ioctl(4, LOOP_CLR_FD) = 0 [pid 5260] close(4) = 0 [pid 5260] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5259] <... futex resumed>) = 0 [pid 5259] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5259] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5260] <... futex resumed>) = 1 [pid 5260] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 4 [pid 5260] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5259] <... futex resumed>) = 0 [pid 5259] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5259] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5260] <... futex resumed>) = 1 [pid 5260] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = 5 [pid 5260] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5259] <... futex resumed>) = 0 [pid 5259] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5259] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5260] <... futex resumed>) = 1 [pid 5260] openat(-1, "/proc/self/exe", O_RDONLY) = 6 [pid 5260] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5259] <... futex resumed>) = 0 [pid 5259] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5259] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5260] <... futex resumed>) = 1 [ 70.653198][ T5260] loop0: detected capacity change from 0 to 1024 [ 70.663724][ T5260] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 70.674064][ T5260] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 70.686674][ T5260] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5260] sendfile(5, 6, NULL, 140737974943952) = 65536 [pid 5260] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5259] <... futex resumed>) = 0 [pid 5259] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5259] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5260] <... futex resumed>) = 1 [pid 5260] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = -1 ENOSPC (No space left on device) [pid 5260] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5259] <... futex resumed>) = 0 [pid 5259] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5259] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5260] ftruncate(4, 31) = 0 [pid 5260] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5259] <... futex resumed>) = 0 [pid 5259] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5259] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5260] <... futex resumed>) = 1 [pid 5260] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 7 [pid 5260] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5259] <... futex resumed>) = 0 [pid 5259] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5259] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5260] <... futex resumed>) = 1 [pid 5260] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = 20480 [pid 5260] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5259] <... futex resumed>) = 0 [pid 5260] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5259] exit_group(0 [pid 5260] <... futex resumed>) = ? [pid 5259] <... exit_group resumed>) = ? [pid 5260] +++ exited with 0 +++ [pid 5259] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5259, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} --- umount2("./94", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./94", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./94/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./94/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./94/binderfs") = 0 umount2("./94/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./94/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./94/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./94/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./94/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./94/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./94") = 0 mkdir("./95", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5261 ./strace-static-x86_64: Process 5261 attached [pid 5261] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5261] chdir("./95") = 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) = 3 [pid 5261] write(3, "1000", 4) = 4 [pid 5261] close(3) = 0 [pid 5261] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5261] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5261] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5261] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5261] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5262], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5262 ./strace-static-x86_64: Process 5262 attached [pid 5262] set_robust_list(0x7fa3182639e0, 24) = 0 [pid 5262] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5261] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5262] <... futex resumed>) = 0 [pid 5261] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5262] memfd_create("syzkaller", 0) = 3 [pid 5262] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [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"..., 524288) = 524288 [pid 5262] munmap(0x7fa30fe43000, 524288) = 0 [pid 5262] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5262] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5262] close(3) = 0 [pid 5262] mkdir("./file0", 0777) = 0 [pid 5262] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 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] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5261] <... futex resumed>) = 0 [pid 5261] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5261] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5262] <... futex resumed>) = 1 [pid 5262] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 4 [pid 5262] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5261] <... futex resumed>) = 0 [pid 5262] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000 [pid 5261] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5261] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5262] <... open resumed>) = 5 [pid 5262] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5261] <... futex resumed>) = 0 [pid 5262] openat(-1, "/proc/self/exe", O_RDONLY [pid 5261] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5262] <... openat resumed>) = 6 [pid 5261] <... futex resumed>) = 0 [pid 5261] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5262] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5261] <... futex resumed>) = 0 [pid 5262] sendfile(5, 6, NULL, 140737974943952 [pid 5261] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 70.831957][ T5262] loop0: detected capacity change from 0 to 1024 [ 70.841349][ T5262] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 70.851836][ T5262] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 70.863945][ T5262] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5261] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5262] <... sendfile resumed>) = 65536 [pid 5262] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5262] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5261] <... futex resumed>) = 0 [pid 5261] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5262] <... futex resumed>) = 0 [pid 5261] <... futex resumed>) = 1 [pid 5262] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0 [pid 5261] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5262] <... pwritev2 resumed>) = -1 ENOSPC (No space left on device) [pid 5262] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5261] <... futex resumed>) = 0 [pid 5262] ftruncate(4, 31 [pid 5261] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5261] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5262] <... ftruncate resumed>) = 0 [pid 5262] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5261] <... futex resumed>) = 0 [pid 5262] <... futex resumed>) = 1 [pid 5261] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5262] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [pid 5261] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5262] <... open resumed>) = 7 [pid 5262] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5261] <... futex resumed>) = 0 [pid 5261] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5262] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0 [pid 5261] <... futex resumed>) = 0 [pid 5261] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5262] <... pwritev2 resumed>) = 20480 [pid 5262] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5261] <... futex resumed>) = 0 [pid 5262] <... futex resumed>) = 1 [pid 5261] exit_group(0) = ? [pid 5262] +++ exited with 0 +++ [pid 5261] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5261, si_uid=0, si_status=0, si_utime=0, si_stime=7 /* 0.07 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./95", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./95", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./95/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./95/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./95/binderfs") = 0 umount2("./95/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./95/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./95/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./95/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./95/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./95/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./95") = 0 mkdir("./96", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5263 ./strace-static-x86_64: Process 5263 attached [pid 5263] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5263] chdir("./96") = 0 [pid 5263] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5263] setpgid(0, 0) = 0 [pid 5263] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5263] write(3, "1000", 4) = 4 [pid 5263] close(3) = 0 [pid 5263] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5263] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5263] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5263] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5263] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5264], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5264 [pid 5263] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5263] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5264 attached [pid 5264] set_robust_list(0x7fa3182639e0, 24) = 0 [pid 5264] memfd_create("syzkaller", 0) = 3 [pid 5264] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [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"..., 524288) = 524288 [pid 5264] munmap(0x7fa30fe43000, 524288) = 0 [pid 5264] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5264] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5264] close(3) = 0 [pid 5264] mkdir("./file0", 0777) = 0 [pid 5264] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5264] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5264] chdir("./file0") = 0 [pid 5264] ioctl(4, LOOP_CLR_FD) = 0 [pid 5264] close(4) = 0 [pid 5264] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5263] <... futex resumed>) = 0 [pid 5263] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5263] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5264] <... futex resumed>) = 1 [pid 5264] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 4 [pid 5264] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5263] <... futex resumed>) = 0 [pid 5263] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5263] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5264] <... futex resumed>) = 1 [pid 5264] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = 5 [pid 5264] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5263] <... futex resumed>) = 0 [pid 5263] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5263] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5264] <... futex resumed>) = 1 [pid 5264] openat(-1, "/proc/self/exe", O_RDONLY) = 6 [pid 5264] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5263] <... futex resumed>) = 0 [pid 5263] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5263] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5264] <... futex resumed>) = 1 [ 71.013380][ T5264] loop0: detected capacity change from 0 to 1024 [ 71.023521][ T5264] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 71.033796][ T5264] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 71.046529][ T5264] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5264] sendfile(5, 6, NULL, 140737974943952 [pid 5263] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5263] futex(0x7fa31833d7fc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5263] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa30fea2000 [pid 5263] mprotect(0x7fa30fea3000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5263] clone(child_stack=0x7fa30fec23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5265], tls=0x7fa30fec2700, child_tidptr=0x7fa30fec29d0) = 5265 [pid 5263] futex(0x7fa31833d7f8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5263] futex(0x7fa31833d7fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5264] <... sendfile resumed>) = 65536 [pid 5264] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 ./strace-static-x86_64: Process 5265 attached [pid 5265] set_robust_list(0x7fa30fec29e0, 24 [pid 5264] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5265] <... set_robust_list resumed>) = 0 [pid 5265] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = -1 ENOSPC (No space left on device) [pid 5265] futex(0x7fa31833d7fc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5263] <... futex resumed>) = 0 [pid 5265] futex(0x7fa31833d7f8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5263] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5263] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5264] <... futex resumed>) = 0 [pid 5264] ftruncate(4, 31) = 0 [pid 5264] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5263] <... futex resumed>) = 0 [pid 5263] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5264] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [pid 5263] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5264] <... open resumed>) = 7 [pid 5264] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5263] <... futex resumed>) = 0 [pid 5264] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0 [pid 5263] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5263] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5264] <... pwritev2 resumed>) = 20480 [pid 5264] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5263] <... futex resumed>) = 0 [pid 5263] exit_group(0 [pid 5265] <... futex resumed>) = ? [pid 5263] <... exit_group resumed>) = ? [pid 5265] +++ exited with 0 +++ [pid 5264] <... futex resumed>) = ? [pid 5264] +++ exited with 0 +++ [pid 5263] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5263, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- umount2("./96", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./96", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./96/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./96/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./96/binderfs") = 0 umount2("./96/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./96/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./96/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./96/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./96/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./96/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./96") = 0 mkdir("./97", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5266 ./strace-static-x86_64: Process 5266 attached [pid 5266] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5266] chdir("./97") = 0 [pid 5266] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5266] setpgid(0, 0) = 0 [pid 5266] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5266] write(3, "1000", 4) = 4 [pid 5266] close(3) = 0 [pid 5266] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5266] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5266] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5266] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5266] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5267], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5267 [pid 5266] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5266] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5267 attached [pid 5267] set_robust_list(0x7fa3182639e0, 24) = 0 [pid 5267] memfd_create("syzkaller", 0) = 3 [pid 5267] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [pid 5267] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5267] munmap(0x7fa30fe43000, 524288) = 0 [pid 5267] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5267] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5267] close(3) = 0 [pid 5267] mkdir("./file0", 0777) = 0 [pid 5267] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5267] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5267] chdir("./file0") = 0 [pid 5267] ioctl(4, LOOP_CLR_FD) = 0 [pid 5267] close(4) = 0 [pid 5267] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5266] <... futex resumed>) = 0 [pid 5266] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5266] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5267] <... futex resumed>) = 1 [pid 5267] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 4 [pid 5267] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5266] <... futex resumed>) = 0 [pid 5266] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5266] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5267] <... futex resumed>) = 1 [pid 5267] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = 5 [pid 5267] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5266] <... futex resumed>) = 0 [pid 5266] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5266] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5267] <... futex resumed>) = 1 [pid 5267] openat(-1, "/proc/self/exe", O_RDONLY) = 6 [pid 5267] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5266] <... futex resumed>) = 0 [pid 5266] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5266] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5267] <... futex resumed>) = 1 [ 71.278859][ T5267] loop0: detected capacity change from 0 to 1024 [ 71.290635][ T5267] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 71.301792][ T5267] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 71.315479][ T5267] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5267] sendfile(5, 6, NULL, 140737974943952 [pid 5266] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5266] futex(0x7fa31833d7fc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5266] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa30fea2000 [pid 5266] mprotect(0x7fa30fea3000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5266] clone(child_stack=0x7fa30fec23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5268], tls=0x7fa30fec2700, child_tidptr=0x7fa30fec29d0) = 5268 [pid 5266] futex(0x7fa31833d7f8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5266] futex(0x7fa31833d7fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5268 attached [pid 5268] set_robust_list(0x7fa30fec29e0, 24) = 0 [pid 5268] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0 [pid 5267] <... sendfile resumed>) = 65536 [pid 5267] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5267] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5268] <... pwritev2 resumed>) = -1 ENOSPC (No space left on device) [pid 5268] futex(0x7fa31833d7fc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5266] <... futex resumed>) = 0 [pid 5266] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5266] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5267] <... futex resumed>) = 0 [pid 5267] ftruncate(4, 31 [pid 5268] <... futex resumed>) = 1 [pid 5267] <... ftruncate resumed>) = 0 [pid 5267] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5266] <... futex resumed>) = 0 [pid 5266] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5266] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5267] <... futex resumed>) = 1 [pid 5267] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 7 [pid 5267] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5266] <... futex resumed>) = 0 [pid 5266] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5266] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5267] <... futex resumed>) = 1 [pid 5267] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0 [pid 5268] futex(0x7fa31833d7f8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5267] <... pwritev2 resumed>) = 20480 [pid 5267] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5266] <... futex resumed>) = 0 [pid 5266] exit_group(0) = ? [pid 5268] <... futex resumed>) = ? [pid 5268] +++ exited with 0 +++ [pid 5267] <... futex resumed>) = ? [pid 5267] +++ exited with 0 +++ [pid 5266] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5266, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./97", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./97", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./97/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./97/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./97/binderfs") = 0 umount2("./97/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./97/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./97/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./97/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./97/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./97/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./97") = 0 mkdir("./98", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5269 ./strace-static-x86_64: Process 5269 attached [pid 5269] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5269] chdir("./98") = 0 [pid 5269] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5269] setpgid(0, 0) = 0 [pid 5269] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5269] write(3, "1000", 4) = 4 [pid 5269] close(3) = 0 [pid 5269] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5269] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5269] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5269] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5269] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5270], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5270 [pid 5269] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5269] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5270 attached [pid 5270] set_robust_list(0x7fa3182639e0, 24) = 0 [pid 5270] memfd_create("syzkaller", 0) = 3 [pid 5270] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [pid 5270] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5270] munmap(0x7fa30fe43000, 524288) = 0 [pid 5270] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5270] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5270] close(3) = 0 [pid 5270] mkdir("./file0", 0777) = 0 [pid 5270] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5270] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5270] chdir("./file0") = 0 [pid 5270] ioctl(4, LOOP_CLR_FD) = 0 [pid 5270] close(4) = 0 [pid 5270] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5269] <... futex resumed>) = 0 [pid 5269] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5269] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5270] <... futex resumed>) = 1 [pid 5270] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 4 [pid 5270] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5269] <... futex resumed>) = 0 [pid 5269] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5269] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5270] <... futex resumed>) = 1 [pid 5270] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = 5 [pid 5270] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5269] <... futex resumed>) = 0 [pid 5269] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5269] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5270] <... futex resumed>) = 1 [pid 5270] openat(-1, "/proc/self/exe", O_RDONLY) = 6 [pid 5270] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5269] <... futex resumed>) = 0 [pid 5269] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5269] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5270] <... futex resumed>) = 1 [ 71.514243][ T5270] loop0: detected capacity change from 0 to 1024 [ 71.525556][ T5270] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 71.536190][ T5270] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 71.549007][ T5270] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5270] sendfile(5, 6, NULL, 140737974943952 [pid 5269] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5269] futex(0x7fa31833d7fc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5269] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa30fea2000 [pid 5269] mprotect(0x7fa30fea3000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5269] clone(child_stack=0x7fa30fec23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5271 attached , parent_tid=[5271], tls=0x7fa30fec2700, child_tidptr=0x7fa30fec29d0) = 5271 [pid 5271] set_robust_list(0x7fa30fec29e0, 24) = 0 [pid 5271] futex(0x7fa31833d7f8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5269] futex(0x7fa31833d7f8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5269] futex(0x7fa31833d7fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5271] <... futex resumed>) = 0 [pid 5271] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0 [pid 5270] <... sendfile resumed>) = 65536 [pid 5270] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5270] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5271] <... pwritev2 resumed>) = -1 ENOSPC (No space left on device) [pid 5271] futex(0x7fa31833d7fc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5271] futex(0x7fa31833d7f8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5269] <... futex resumed>) = 0 [pid 5269] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5270] <... futex resumed>) = 0 [pid 5269] <... futex resumed>) = 1 [pid 5270] ftruncate(4, 31 [pid 5269] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5270] <... ftruncate resumed>) = 0 [pid 5270] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5269] <... futex resumed>) = 0 [pid 5269] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5269] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5270] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 7 [pid 5270] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5269] <... futex resumed>) = 0 [pid 5269] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5269] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5270] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = 20480 [pid 5270] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5270] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5269] <... futex resumed>) = 0 [pid 5269] exit_group(0 [pid 5270] <... futex resumed>) = ? [pid 5269] <... exit_group resumed>) = ? [pid 5271] <... futex resumed>) = ? [pid 5270] +++ exited with 0 +++ [pid 5271] +++ exited with 0 +++ [pid 5269] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5269, si_uid=0, si_status=0, si_utime=0, si_stime=7 /* 0.07 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./98", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./98", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./98/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./98/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./98/binderfs") = 0 umount2("./98/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./98/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./98/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./98/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./98/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./98/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./98") = 0 mkdir("./99", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5272 ./strace-static-x86_64: Process 5272 attached [pid 5272] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5272] chdir("./99") = 0 [pid 5272] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5272] setpgid(0, 0) = 0 [pid 5272] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5272] write(3, "1000", 4) = 4 [pid 5272] close(3) = 0 [pid 5272] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5272] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5272] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5272] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5272] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5273], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5273 ./strace-static-x86_64: Process 5273 attached [pid 5273] set_robust_list(0x7fa3182639e0, 24) = 0 [pid 5273] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5272] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5273] <... futex resumed>) = 0 [pid 5272] <... futex resumed>) = 1 [pid 5272] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5273] memfd_create("syzkaller", 0) = 3 [pid 5273] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [pid 5273] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5273] munmap(0x7fa30fe43000, 524288) = 0 [pid 5273] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5273] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5273] close(3) = 0 [pid 5273] mkdir("./file0", 0777) = 0 [pid 5273] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5273] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5273] chdir("./file0") = 0 [pid 5273] ioctl(4, LOOP_CLR_FD) = 0 [pid 5273] close(4) = 0 [pid 5273] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5272] <... futex resumed>) = 0 [pid 5272] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5272] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5273] <... futex resumed>) = 1 [pid 5273] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 4 [pid 5273] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5272] <... futex resumed>) = 0 [pid 5272] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5272] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5273] <... futex resumed>) = 1 [pid 5273] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = 5 [pid 5273] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5272] <... futex resumed>) = 0 [pid 5272] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5272] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5273] <... futex resumed>) = 1 [pid 5273] openat(-1, "/proc/self/exe", O_RDONLY) = 6 [pid 5273] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5272] <... futex resumed>) = 0 [pid 5272] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5272] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5273] <... futex resumed>) = 1 [ 71.762399][ T5273] loop0: detected capacity change from 0 to 1024 [ 71.773933][ T5273] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 71.784365][ T5273] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 71.796006][ T5273] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5273] sendfile(5, 6, NULL, 140737974943952) = 65536 [pid 5273] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5272] <... futex resumed>) = 0 [pid 5273] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5272] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5273] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5272] <... futex resumed>) = 0 [pid 5273] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0 [pid 5272] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5273] <... pwritev2 resumed>) = -1 ENOSPC (No space left on device) [pid 5273] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5272] <... futex resumed>) = 0 [pid 5273] ftruncate(4, 31 [pid 5272] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5273] <... ftruncate resumed>) = 0 [pid 5273] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5272] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5272] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5272] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5273] <... futex resumed>) = 1 [pid 5272] <... futex resumed>) = 0 [pid 5272] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=49000000} [pid 5273] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 7 [pid 5273] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5272] <... futex resumed>) = 0 [pid 5272] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5273] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0 [pid 5272] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5273] <... pwritev2 resumed>) = 20480 [pid 5273] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5272] <... futex resumed>) = 0 [pid 5272] exit_group(0) = ? [pid 5273] +++ exited with 0 +++ [pid 5272] +++ exited with 0 +++ --- 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 */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./99", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./99", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./99/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./99/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./99/binderfs") = 0 umount2("./99/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./99/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./99/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./99/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./99/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./99/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./99") = 0 mkdir("./100", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5274 ./strace-static-x86_64: Process 5274 attached [pid 5274] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5274] chdir("./100") = 0 [pid 5274] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5274] setpgid(0, 0) = 0 [pid 5274] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5274] write(3, "1000", 4) = 4 [pid 5274] close(3) = 0 [pid 5274] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5274] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5274] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5274] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5274] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5275 attached , parent_tid=[5275], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5275 [pid 5274] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5274] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5275] set_robust_list(0x7fa3182639e0, 24) = 0 [pid 5275] memfd_create("syzkaller", 0) = 3 [pid 5275] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [pid 5275] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5275] munmap(0x7fa30fe43000, 524288) = 0 [pid 5275] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5275] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5275] close(3) = 0 [pid 5275] mkdir("./file0", 0777) = 0 [pid 5275] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5275] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5275] chdir("./file0") = 0 [pid 5275] ioctl(4, LOOP_CLR_FD) = 0 [pid 5275] close(4) = 0 [pid 5275] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5275] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5274] <... futex resumed>) = 0 [pid 5274] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5274] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5275] <... futex resumed>) = 0 [pid 5275] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 4 [pid 5275] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5274] <... futex resumed>) = 0 [pid 5275] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000 [pid 5274] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5274] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5275] <... open resumed>) = 5 [pid 5275] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5274] <... futex resumed>) = 0 [pid 5274] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5274] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5275] openat(-1, "/proc/self/exe", O_RDONLY) = 6 [pid 5275] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5274] <... futex resumed>) = 0 [pid 5274] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5274] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [ 71.950866][ T5275] loop0: detected capacity change from 0 to 1024 [ 71.960912][ T5275] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 71.971642][ T5275] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 71.984207][ T5275] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5275] sendfile(5, 6, NULL, 140737974943952) = 65536 [pid 5275] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5274] <... futex resumed>) = 0 [pid 5274] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5274] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5275] <... futex resumed>) = 1 [pid 5275] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = -1 ENOSPC (No space left on device) [pid 5275] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5274] <... futex resumed>) = 0 [pid 5274] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5274] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5275] <... futex resumed>) = 1 [pid 5275] ftruncate(4, 31) = 0 [pid 5275] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5274] <... futex resumed>) = 0 [pid 5274] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5274] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5275] <... futex resumed>) = 1 [pid 5275] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 7 [pid 5275] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5274] <... futex resumed>) = 0 [pid 5274] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5274] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5275] <... futex resumed>) = 1 [pid 5275] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = 20480 [pid 5275] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5274] <... futex resumed>) = 0 [pid 5275] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5274] exit_group(0) = ? [pid 5275] <... futex resumed>) = ? [pid 5275] +++ exited with 0 +++ [pid 5274] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5274, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./100", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./100", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./100/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./100/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./100/binderfs") = 0 umount2("./100/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./100/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./100/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./100/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./100/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./100/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./100") = 0 mkdir("./101", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5276 ./strace-static-x86_64: Process 5276 attached [pid 5276] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5276] chdir("./101") = 0 [pid 5276] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5276] setpgid(0, 0) = 0 [pid 5276] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5276] write(3, "1000", 4) = 4 [pid 5276] close(3) = 0 [pid 5276] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5276] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5276] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5276] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5276] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5277 attached , parent_tid=[5277], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5277 [pid 5277] set_robust_list(0x7fa3182639e0, 24) = 0 [pid 5277] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5276] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5277] <... futex resumed>) = 0 [pid 5276] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5277] memfd_create("syzkaller", 0) = 3 [pid 5277] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [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"..., 524288) = 524288 [pid 5277] munmap(0x7fa30fe43000, 524288) = 0 [pid 5277] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5277] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5277] close(3) = 0 [pid 5277] mkdir("./file0", 0777) = 0 [pid 5277] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5277] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5277] chdir("./file0") = 0 [pid 5277] ioctl(4, LOOP_CLR_FD) = 0 [pid 5277] close(4) = 0 [pid 5277] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5276] <... futex resumed>) = 0 [pid 5276] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5276] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5277] <... futex resumed>) = 1 [pid 5277] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 4 [pid 5277] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5276] <... futex resumed>) = 0 [pid 5276] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5276] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5277] <... futex resumed>) = 1 [pid 5277] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = 5 [pid 5277] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5276] <... futex resumed>) = 0 [pid 5276] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5276] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5277] <... futex resumed>) = 1 [pid 5277] openat(-1, "/proc/self/exe", O_RDONLY) = 6 [pid 5277] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5276] <... futex resumed>) = 0 [pid 5277] sendfile(5, 6, NULL, 140737974943952 [pid 5276] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 72.159609][ T5277] loop0: detected capacity change from 0 to 1024 [ 72.169498][ T5277] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 72.179776][ T5277] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 72.191295][ T5277] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5276] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5277] <... sendfile resumed>) = 65536 [pid 5277] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5276] <... futex resumed>) = 0 [pid 5277] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0 [pid 5276] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5276] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5277] <... pwritev2 resumed>) = -1 ENOSPC (No space left on device) [pid 5277] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5277] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5276] <... futex resumed>) = 0 [pid 5276] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5277] <... futex resumed>) = 0 [pid 5277] ftruncate(4, 31 [pid 5276] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5277] <... ftruncate resumed>) = 0 [pid 5277] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5277] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5276] <... futex resumed>) = 0 [pid 5276] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5277] <... futex resumed>) = 0 [pid 5276] <... futex resumed>) = 1 [pid 5277] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [pid 5276] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5277] <... open resumed>) = 7 [pid 5277] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5276] <... futex resumed>) = 0 [pid 5277] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0 [pid 5276] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5276] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5277] <... pwritev2 resumed>) = 20480 [pid 5277] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5276] <... futex resumed>) = 0 [pid 5277] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5276] exit_group(0 [pid 5277] <... futex resumed>) = ? [pid 5276] <... exit_group resumed>) = ? [pid 5277] +++ exited with 0 +++ [pid 5276] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5276, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./101", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./101", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./101/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./101/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./101/binderfs") = 0 umount2("./101/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./101/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./101/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./101/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./101/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./101/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./101") = 0 mkdir("./102", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5278 ./strace-static-x86_64: Process 5278 attached [pid 5278] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5278] chdir("./102") = 0 [pid 5278] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5278] setpgid(0, 0) = 0 [pid 5278] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5278] write(3, "1000", 4) = 4 [pid 5278] close(3) = 0 [pid 5278] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5278] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5278] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5278] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5278] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5279 attached [pid 5279] set_robust_list(0x7fa3182639e0, 24) = 0 [pid 5279] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5278] <... clone resumed>, parent_tid=[5279], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5279 [pid 5278] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5279] <... futex resumed>) = 0 [pid 5278] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5279] memfd_create("syzkaller", 0) = 3 [pid 5279] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [pid 5279] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5279] munmap(0x7fa30fe43000, 524288) = 0 [pid 5279] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5279] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5279] close(3) = 0 [pid 5279] mkdir("./file0", 0777) = 0 [pid 5279] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5279] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5279] chdir("./file0") = 0 [pid 5279] ioctl(4, LOOP_CLR_FD) = 0 [pid 5279] close(4) = 0 [pid 5279] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5278] <... futex resumed>) = 0 [pid 5279] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5278] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5279] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5278] <... futex resumed>) = 0 [pid 5279] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [pid 5278] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5279] <... open resumed>) = 4 [pid 5279] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5278] <... futex resumed>) = 0 [pid 5279] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000 [pid 5278] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5279] <... open resumed>) = 5 [pid 5278] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5279] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5278] <... futex resumed>) = 0 [pid 5279] openat(-1, "/proc/self/exe", O_RDONLY [pid 5278] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5279] <... openat resumed>) = 6 [pid 5278] <... futex resumed>) = 0 [pid 5279] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5278] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5279] <... futex resumed>) = 0 [pid 5278] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5279] sendfile(5, 6, NULL, 140737974943952 [pid 5278] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 72.358020][ T5279] loop0: detected capacity change from 0 to 1024 [ 72.367216][ T5279] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 72.377414][ T5279] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 72.389194][ T5279] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5278] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5279] <... sendfile resumed>) = 65536 [pid 5279] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5278] <... futex resumed>) = 0 [pid 5279] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5278] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5278] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5279] <... futex resumed>) = 0 [pid 5279] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = -1 ENOSPC (No space left on device) [pid 5279] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5278] <... futex resumed>) = 0 [pid 5279] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5278] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5279] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5279] ftruncate(4, 31 [pid 5278] <... futex resumed>) = 0 [pid 5278] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5279] <... ftruncate resumed>) = 0 [pid 5279] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5278] <... futex resumed>) = 0 [pid 5278] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5278] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5279] <... futex resumed>) = 1 [pid 5279] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 7 [pid 5279] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5278] <... futex resumed>) = 0 [pid 5278] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5278] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5279] <... futex resumed>) = 1 [pid 5279] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = 20480 [pid 5279] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5278] <... futex resumed>) = 0 [pid 5278] exit_group(0 [pid 5279] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL) = ? [pid 5278] <... exit_group resumed>) = ? [pid 5279] +++ exited with 0 +++ [pid 5278] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5278, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./102", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./102", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./102/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./102/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./102/binderfs") = 0 umount2("./102/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./102/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./102/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./102/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./102/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./102/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./102") = 0 mkdir("./103", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5280 ./strace-static-x86_64: Process 5280 attached [pid 5280] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5280] chdir("./103") = 0 [pid 5280] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5280] setpgid(0, 0) = 0 [pid 5280] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5280] write(3, "1000", 4) = 4 [pid 5280] close(3) = 0 [pid 5280] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5280] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5280] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5280] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5280] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5281], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5281 [pid 5280] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5280] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5281 attached [pid 5281] set_robust_list(0x7fa3182639e0, 24) = 0 [pid 5281] memfd_create("syzkaller", 0) = 3 [pid 5281] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [pid 5281] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5281] munmap(0x7fa30fe43000, 524288) = 0 [pid 5281] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5281] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5281] close(3) = 0 [pid 5281] mkdir("./file0", 0777) = 0 [pid 5281] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5281] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5281] chdir("./file0") = 0 [pid 5281] ioctl(4, LOOP_CLR_FD) = 0 [pid 5281] close(4) = 0 [pid 5281] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5280] <... futex resumed>) = 0 [pid 5280] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5280] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [ 72.535390][ T5281] loop0: detected capacity change from 0 to 1024 [ 72.545071][ T5281] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 72.555440][ T5281] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 72.567393][ T5281] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5281] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 4 [pid 5281] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5280] <... futex resumed>) = 0 [pid 5280] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5280] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5281] <... futex resumed>) = 1 [pid 5281] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = 5 [pid 5281] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5280] <... futex resumed>) = 0 [pid 5280] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5280] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5281] <... futex resumed>) = 1 [pid 5281] openat(-1, "/proc/self/exe", O_RDONLY) = 6 [pid 5281] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5280] <... futex resumed>) = 0 [pid 5280] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5280] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5281] <... futex resumed>) = 1 [pid 5281] sendfile(5, 6, NULL, 140737974943952) = 65536 [pid 5281] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5280] <... futex resumed>) = 0 [pid 5280] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5280] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5281] <... futex resumed>) = 1 [pid 5281] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = -1 ENOSPC (No space left on device) [pid 5281] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5280] <... futex resumed>) = 0 [pid 5281] ftruncate(4, 31 [pid 5280] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5280] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5281] <... ftruncate resumed>) = 0 [pid 5281] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5280] <... futex resumed>) = 0 [pid 5280] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5280] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5281] <... futex resumed>) = 1 [pid 5281] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 7 [pid 5281] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5280] <... futex resumed>) = 0 [pid 5280] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5280] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5281] <... futex resumed>) = 1 [ 72.583504][ T27] kauditd_printk_skb: 68 callbacks suppressed [ 72.583516][ T27] audit: type=1800 audit(1672320172.365:311): pid=5281 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor164" name="file1" dev="loop0" ino=839 res=0 errno=0 [ 72.611087][ T27] audit: type=1800 audit(1672320172.375:312): pid=5281 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor164" name="bus" dev="loop0" ino=861 res=0 errno=0 [pid 5281] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = 20480 [pid 5281] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5280] <... futex resumed>) = 0 [pid 5281] <... futex resumed>) = 1 [pid 5281] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5280] exit_group(0 [pid 5281] <... futex resumed>) = ? [pid 5280] <... exit_group resumed>) = ? [pid 5281] +++ exited with 0 +++ [pid 5280] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5280, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./103", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./103", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./103/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./103/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./103/binderfs") = 0 umount2("./103/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./103/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./103/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./103/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./103/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 [ 72.651012][ T27] audit: type=1800 audit(1672320172.425:313): pid=5281 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor164" name="file1" dev="loop0" ino=839 res=0 errno=0 rmdir("./103/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./103") = 0 mkdir("./104", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5282 ./strace-static-x86_64: Process 5282 attached [pid 5282] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5282] chdir("./104") = 0 [pid 5282] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5282] setpgid(0, 0) = 0 [pid 5282] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5282] write(3, "1000", 4) = 4 [pid 5282] close(3) = 0 [pid 5282] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5282] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5282] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5282] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5282] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5283 attached , parent_tid=[5283], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5283 [pid 5282] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5282] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5283] set_robust_list(0x7fa3182639e0, 24) = 0 [pid 5283] memfd_create("syzkaller", 0) = 3 [pid 5283] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [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"..., 524288) = 524288 [pid 5283] munmap(0x7fa30fe43000, 524288) = 0 [pid 5283] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5283] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5283] close(3) = 0 [pid 5283] mkdir("./file0", 0777) = 0 [pid 5283] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5283] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5283] chdir("./file0") = 0 [pid 5283] ioctl(4, LOOP_CLR_FD) = 0 [pid 5283] close(4) = 0 [pid 5283] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5282] <... futex resumed>) = 0 [pid 5282] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5282] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5283] <... futex resumed>) = 1 [ 72.752325][ T5283] loop0: detected capacity change from 0 to 1024 [ 72.762175][ T5283] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 72.772512][ T5283] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 72.785148][ T5283] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5283] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 4 [pid 5283] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5282] <... futex resumed>) = 0 [pid 5282] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5282] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5283] <... futex resumed>) = 1 [pid 5283] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = 5 [pid 5283] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5282] <... futex resumed>) = 0 [pid 5282] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5282] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5283] <... futex resumed>) = 1 [pid 5283] openat(-1, "/proc/self/exe", O_RDONLY) = 6 [pid 5283] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5282] <... futex resumed>) = 0 [pid 5282] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5282] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5283] <... futex resumed>) = 1 [pid 5283] sendfile(5, 6, NULL, 140737974943952) = 65536 [pid 5283] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5282] <... futex resumed>) = 0 [pid 5282] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5282] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5283] <... futex resumed>) = 1 [pid 5283] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = -1 ENOSPC (No space left on device) [pid 5283] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5282] <... futex resumed>) = 0 [pid 5282] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5282] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5283] <... futex resumed>) = 1 [pid 5283] ftruncate(4, 31) = 0 [pid 5283] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5282] <... futex resumed>) = 0 [pid 5282] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5282] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5283] <... futex resumed>) = 1 [ 72.806460][ T27] audit: type=1800 audit(1672320172.585:314): pid=5283 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor164" name="file1" dev="loop0" ino=839 res=0 errno=0 [ 72.828421][ T27] audit: type=1800 audit(1672320172.595:315): pid=5283 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor164" name="bus" dev="loop0" ino=861 res=0 errno=0 [pid 5283] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 7 [pid 5283] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5283] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5282] <... futex resumed>) = 0 [pid 5282] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5282] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5283] <... futex resumed>) = 0 [pid 5283] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = 20480 [pid 5283] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5282] <... futex resumed>) = 0 [pid 5282] exit_group(0) = ? [pid 5283] <... futex resumed>) = ? [pid 5283] +++ exited with 0 +++ [pid 5282] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5282, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./104", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./104", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./104/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./104/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./104/binderfs") = 0 umount2("./104/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./104/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./104/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./104/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./104/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./104/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./104") = 0 mkdir("./105", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [ 72.876209][ T27] audit: type=1800 audit(1672320172.655:316): pid=5283 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor164" name="file1" dev="loop0" ino=839 res=0 errno=0 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5284 attached , child_tidptr=0x55555702f5d0) = 5284 [pid 5284] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5284] chdir("./105") = 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] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5284] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5284] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5284] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5285], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5285 ./strace-static-x86_64: Process 5285 attached [pid 5284] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5284] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5285] set_robust_list(0x7fa3182639e0, 24) = 0 [pid 5285] memfd_create("syzkaller", 0) = 3 [pid 5285] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [pid 5285] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5285] munmap(0x7fa30fe43000, 524288) = 0 [pid 5285] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5285] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5285] close(3) = 0 [pid 5285] mkdir("./file0", 0777) = 0 [pid 5285] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5285] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5285] chdir("./file0") = 0 [pid 5285] ioctl(4, LOOP_CLR_FD) = 0 [pid 5285] close(4) = 0 [pid 5285] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5285] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5284] <... futex resumed>) = 0 [pid 5284] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5284] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5285] <... futex resumed>) = 0 [ 72.954726][ T5285] loop0: detected capacity change from 0 to 1024 [ 72.964324][ T5285] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 72.974581][ T5285] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 72.986243][ T5285] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5285] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 4 [pid 5285] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5284] <... futex resumed>) = 0 [pid 5284] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5284] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5285] <... futex resumed>) = 1 [pid 5285] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = 5 [pid 5285] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5284] <... futex resumed>) = 0 [pid 5284] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5284] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5285] <... futex resumed>) = 1 [pid 5285] openat(-1, "/proc/self/exe", O_RDONLY) = 6 [pid 5285] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5284] <... futex resumed>) = 0 [pid 5284] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5284] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5285] <... futex resumed>) = 1 [pid 5285] sendfile(5, 6, NULL, 140737974943952 [pid 5284] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5284] futex(0x7fa31833d7fc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5284] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa30fea2000 [pid 5284] mprotect(0x7fa30fea3000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5284] clone(child_stack=0x7fa30fec23f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5286], tls=0x7fa30fec2700, child_tidptr=0x7fa30fec29d0) = 5286 ./strace-static-x86_64: Process 5286 attached [pid 5284] futex(0x7fa31833d7f8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5284] futex(0x7fa31833d7fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5286] set_robust_list(0x7fa30fec29e0, 24) = 0 [pid 5285] <... sendfile resumed>) = 65536 [pid 5285] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5285] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5286] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = -1 ENOSPC (No space left on device) [pid 5286] futex(0x7fa31833d7fc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5286] futex(0x7fa31833d7f8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5284] <... futex resumed>) = 0 [pid 5284] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5284] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5285] <... futex resumed>) = 0 [pid 5285] ftruncate(4, 31) = 0 [ 73.005407][ T27] audit: type=1800 audit(1672320172.785:317): pid=5285 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor164" name="file1" dev="loop0" ino=839 res=0 errno=0 [ 73.028094][ T27] audit: type=1800 audit(1672320172.785:318): pid=5285 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor164" name="bus" dev="loop0" ino=861 res=0 errno=0 [pid 5285] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5284] <... futex resumed>) = 0 [pid 5285] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5284] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5285] <... futex resumed>) = 0 [pid 5284] <... futex resumed>) = 1 [pid 5285] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [pid 5284] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5285] <... open resumed>) = 7 [pid 5285] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5284] <... futex resumed>) = 0 [pid 5285] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5284] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5285] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5284] <... futex resumed>) = 0 [pid 5285] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0 [pid 5284] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5285] <... pwritev2 resumed>) = 20480 [pid 5285] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5284] <... futex resumed>) = 0 [pid 5284] exit_group(0 [pid 5286] <... futex resumed>) = ? [pid 5284] <... exit_group resumed>) = ? [pid 5286] +++ exited with 0 +++ [pid 5285] <... futex resumed>) = ? [pid 5285] +++ exited with 0 +++ [pid 5284] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5284, si_uid=0, si_status=0, si_utime=0, si_stime=7 /* 0.07 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./105", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./105", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./105/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./105/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./105/binderfs") = 0 umount2("./105/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./105/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./105/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./105/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./105/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./105/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./105") = 0 mkdir("./106", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5287 ./strace-static-x86_64: Process 5287 attached [pid 5287] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5287] chdir("./106") = 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 5287] write(3, "1000", 4) = 4 [pid 5287] close(3) = 0 [pid 5287] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5287] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5287] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5287] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5287] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5288], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5288 [pid 5287] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5287] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5288 attached [pid 5288] set_robust_list(0x7fa3182639e0, 24) = 0 [pid 5288] memfd_create("syzkaller", 0) = 3 [pid 5288] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [ 73.087386][ T27] audit: type=1800 audit(1672320172.865:319): pid=5285 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor164" name="file1" dev="loop0" ino=839 res=0 errno=0 [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"..., 524288) = 524288 [pid 5288] munmap(0x7fa30fe43000, 524288) = 0 [pid 5288] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5288] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5288] close(3) = 0 [pid 5288] mkdir("./file0", 0777) = 0 [pid 5288] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5288] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5288] chdir("./file0") = 0 [pid 5288] ioctl(4, LOOP_CLR_FD) = 0 [pid 5288] close(4) = 0 [pid 5288] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5287] <... futex resumed>) = 0 [pid 5288] <... futex resumed>) = 1 [pid 5287] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5288] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [pid 5287] <... futex resumed>) = 0 [pid 5288] <... open resumed>) = 4 [ 73.155564][ T5288] loop0: detected capacity change from 0 to 1024 [ 73.165794][ T5288] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 73.176024][ T5288] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 73.187756][ T5288] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5287] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5288] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5287] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5288] <... futex resumed>) = 0 [pid 5287] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5288] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000 [pid 5287] <... futex resumed>) = 0 [pid 5288] <... open resumed>) = 5 [pid 5287] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5288] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5287] <... futex resumed>) = 0 [pid 5288] openat(-1, "/proc/self/exe", O_RDONLY [pid 5287] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5288] <... openat resumed>) = 6 [pid 5287] <... futex resumed>) = 0 [pid 5288] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5287] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5288] <... futex resumed>) = 0 [pid 5287] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5288] sendfile(5, 6, NULL, 140737974943952 [pid 5287] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5287] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5288] <... sendfile resumed>) = 65536 [pid 5288] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5288] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5287] <... futex resumed>) = 0 [pid 5287] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5288] <... futex resumed>) = 0 [pid 5288] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0 [ 73.204711][ T27] audit: type=1800 audit(1672320172.985:320): pid=5288 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor164" name="file1" dev="loop0" ino=839 res=0 errno=0 [pid 5287] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5288] <... pwritev2 resumed>) = -1 ENOSPC (No space left on device) [pid 5288] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5287] <... futex resumed>) = 0 [pid 5288] <... futex resumed>) = 1 [pid 5288] ftruncate(4, 31 [pid 5287] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5287] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5288] <... ftruncate resumed>) = 0 [pid 5288] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5287] <... futex resumed>) = 0 [pid 5287] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5288] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [pid 5287] <... futex resumed>) = 0 [pid 5287] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5288] <... open resumed>) = 7 [pid 5288] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5287] <... futex resumed>) = 0 [pid 5287] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5287] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5288] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = 20480 [pid 5288] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5287] <... futex resumed>) = 0 [pid 5287] exit_group(0) = ? [pid 5288] <... futex resumed>) = ? [pid 5288] +++ exited with 0 +++ [pid 5287] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5287, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- umount2("./106", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./106", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./106/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./106/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./106/binderfs") = 0 umount2("./106/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./106/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./106/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./106/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./106/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./106/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./106") = 0 mkdir("./107", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5289 ./strace-static-x86_64: Process 5289 attached [pid 5289] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5289] chdir("./107") = 0 [pid 5289] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5289] setpgid(0, 0) = 0 [pid 5289] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5289] write(3, "1000", 4) = 4 [pid 5289] close(3) = 0 [pid 5289] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5289] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5289] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5289] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5289] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5290], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5290 [pid 5289] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5289] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5290 attached [pid 5290] set_robust_list(0x7fa3182639e0, 24) = 0 [pid 5290] memfd_create("syzkaller", 0) = 3 [pid 5290] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [pid 5290] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5290] munmap(0x7fa30fe43000, 524288) = 0 [pid 5290] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5290] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5290] close(3) = 0 [pid 5290] mkdir("./file0", 0777) = 0 [pid 5290] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5290] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5290] chdir("./file0") = 0 [pid 5290] ioctl(4, LOOP_CLR_FD) = 0 [pid 5290] close(4) = 0 [pid 5290] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5289] <... futex resumed>) = 0 [pid 5289] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5289] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5290] <... futex resumed>) = 1 [pid 5290] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 4 [pid 5290] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5289] <... futex resumed>) = 0 [pid 5289] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5289] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5290] <... futex resumed>) = 1 [pid 5290] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = 5 [pid 5290] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5289] <... futex resumed>) = 0 [pid 5289] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5289] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5290] <... futex resumed>) = 1 [pid 5290] openat(-1, "/proc/self/exe", O_RDONLY) = 6 [pid 5290] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5289] <... futex resumed>) = 0 [pid 5289] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5289] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5290] <... futex resumed>) = 1 [ 73.341255][ T5290] loop0: detected capacity change from 0 to 1024 [ 73.355370][ T5290] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 73.365703][ T5290] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 73.377463][ T5290] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5290] sendfile(5, 6, NULL, 140737974943952) = 65536 [pid 5290] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5289] <... futex resumed>) = 0 [pid 5289] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5289] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5290] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = -1 ENOSPC (No space left on device) [pid 5290] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5289] <... futex resumed>) = 0 [pid 5289] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5289] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5290] ftruncate(4, 31) = 0 [pid 5290] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5289] <... futex resumed>) = 0 [pid 5289] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5289] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5290] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 7 [pid 5290] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5289] <... futex resumed>) = 0 [pid 5289] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5289] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5290] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = 20480 [pid 5290] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5289] <... futex resumed>) = 0 [pid 5289] exit_group(0) = ? [pid 5290] +++ exited with 0 +++ [pid 5289] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5289, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- umount2("./107", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./107", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./107/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./107/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./107/binderfs") = 0 umount2("./107/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./107/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./107/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./107/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./107/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./107/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./107") = 0 mkdir("./108", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5291 ./strace-static-x86_64: Process 5291 attached [pid 5291] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5291] chdir("./108") = 0 [pid 5291] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5291] setpgid(0, 0) = 0 [pid 5291] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5291] write(3, "1000", 4) = 4 [pid 5291] close(3) = 0 [pid 5291] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5291] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5291] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5291] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5291] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5292], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5292 [pid 5291] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5291] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5292 attached [pid 5292] set_robust_list(0x7fa3182639e0, 24) = 0 [pid 5292] memfd_create("syzkaller", 0) = 3 [pid 5292] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [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"..., 524288) = 524288 [pid 5292] munmap(0x7fa30fe43000, 524288) = 0 [pid 5292] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5292] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5292] close(3) = 0 [pid 5292] mkdir("./file0", 0777) = 0 [pid 5292] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5292] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5292] chdir("./file0") = 0 [pid 5292] ioctl(4, LOOP_CLR_FD) = 0 [pid 5292] close(4) = 0 [pid 5292] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5291] <... futex resumed>) = 0 [pid 5291] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5291] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5292] <... futex resumed>) = 1 [pid 5292] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 4 [pid 5292] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5291] <... futex resumed>) = 0 [pid 5291] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5291] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5292] <... futex resumed>) = 1 [pid 5292] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = 5 [pid 5292] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5291] <... futex resumed>) = 0 [pid 5291] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5291] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5292] <... futex resumed>) = 1 [pid 5292] openat(-1, "/proc/self/exe", O_RDONLY) = 6 [pid 5292] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5291] <... futex resumed>) = 0 [pid 5291] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5291] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5292] <... futex resumed>) = 1 [ 73.518778][ T5292] loop0: detected capacity change from 0 to 1024 [ 73.528746][ T5292] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 73.539320][ T5292] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 73.551155][ T5292] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5292] sendfile(5, 6, NULL, 140737974943952) = 65536 [pid 5292] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5291] <... futex resumed>) = 0 [pid 5291] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5291] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5292] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = -1 ENOSPC (No space left on device) [pid 5292] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5291] <... futex resumed>) = 0 [pid 5291] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5291] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5292] ftruncate(4, 31) = 0 [pid 5292] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5291] <... futex resumed>) = 0 [pid 5291] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5291] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5292] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 7 [pid 5292] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5291] <... futex resumed>) = 0 [pid 5291] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5291] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5292] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = 20480 [pid 5292] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5291] <... futex resumed>) = 0 [pid 5291] exit_group(0) = ? [pid 5292] +++ exited with 0 +++ [pid 5291] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5291, si_uid=0, si_status=0, si_utime=0, si_stime=7 /* 0.07 s */} --- umount2("./108", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./108", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./108/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./108/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./108/binderfs") = 0 umount2("./108/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./108/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./108/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./108/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./108/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./108/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./108") = 0 mkdir("./109", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5293 ./strace-static-x86_64: Process 5293 attached [pid 5293] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5293] chdir("./109") = 0 [pid 5293] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5293] setpgid(0, 0) = 0 [pid 5293] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5293] write(3, "1000", 4) = 4 [pid 5293] close(3) = 0 [pid 5293] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5293] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5293] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa318243000 [pid 5293] mprotect(0x7fa318244000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5293] clone(child_stack=0x7fa3182633f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5294], tls=0x7fa318263700, child_tidptr=0x7fa3182639d0) = 5294 [pid 5293] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5293] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5294 attached [pid 5294] set_robust_list(0x7fa3182639e0, 24) = 0 [pid 5294] memfd_create("syzkaller", 0) = 3 [pid 5294] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa30fe43000 [pid 5294] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5294] munmap(0x7fa30fe43000, 524288) = 0 [pid 5294] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5294] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5294] close(3) = 0 [pid 5294] mkdir("./file0", 0777) = 0 [ 73.688834][ T5294] loop0: detected capacity change from 0 to 1024 [ 73.695166][ T5070] I/O error, dev loop0, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 73.695307][ T5070] I/O error, dev loop0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 73.714205][ T5070] Buffer I/O error on dev loop0, logical block 0, async page read [ 73.724621][ T5294] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [pid 5294] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_SYNCHRONOUS|MS_MANDLOCK|MS_REC|MS_STRICTATIME|MS_LAZYTIME, "noadinicb,utf8,noadinicb,volume=18446744073709551614,iocharset=iso8859-14,") = 0 [pid 5294] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5294] chdir("./file0") = 0 [pid 5294] ioctl(4, LOOP_CLR_FD) = 0 [pid 5294] close(4) = 0 [pid 5294] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5293] <... futex resumed>) = 0 [pid 5293] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5293] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5294] <... futex resumed>) = 1 [pid 5294] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 4 [pid 5294] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5293] <... futex resumed>) = 0 [pid 5293] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5293] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5294] <... futex resumed>) = 1 [pid 5294] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = 5 [pid 5294] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5293] <... futex resumed>) = 0 [pid 5293] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5293] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5294] <... futex resumed>) = 1 [pid 5294] openat(-1, "/proc/self/exe", O_RDONLY) = 6 [pid 5294] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5293] <... futex resumed>) = 0 [pid 5293] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5293] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5294] <... futex resumed>) = 1 [ 73.734944][ T5294] UDF-fs: error (device loop0): udf_process_sequence: Primary Volume Descriptor not found! [ 73.746508][ T5294] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5294] sendfile(5, 6, NULL, 140737974943952) = 65536 [pid 5294] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5293] <... futex resumed>) = 0 [pid 5294] pwritev2(4, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0 [pid 5293] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5293] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5294] <... pwritev2 resumed>) = -1 ENOSPC (No space left on device) [pid 5294] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5293] <... futex resumed>) = 0 [pid 5294] ftruncate(4, 31 [pid 5293] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5293] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5294] <... ftruncate resumed>) = 0 [pid 5294] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5293] <... futex resumed>) = 0 [pid 5294] <... futex resumed>) = 1 [pid 5293] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5294] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000 [pid 5293] <... futex resumed>) = 0 [pid 5293] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5294] <... open resumed>) = 7 [pid 5294] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5293] <... futex resumed>) = 0 [pid 5293] futex(0x7fa31833d7e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5293] futex(0x7fa31833d7ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5294] pwritev2(7, [{iov_base="\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=397312}], 1, 0, 0) = 20480 [pid 5294] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5293] <... futex resumed>) = 0 [pid 5294] <... futex resumed>) = 1 [pid 5294] futex(0x7fa31833d7e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5293] exit_group(0 [pid 5294] <... futex resumed>) = ? [pid 5293] <... exit_group resumed>) = ? [pid 5294] +++ exited with 0 +++ [pid 5293] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5293, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- umount2("./109", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./109", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x555557030620 /* 4 entries */, 32768) = 112 umount2("./109/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./109/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./109/binderfs") = 0 umount2("./109/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 umount2("./109/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./109/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 umount2("./109/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./109/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(4, 0x555557038660 /* 2 entries */, 32768) = 48 getdents64(4, 0x555557038660 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./109/file0") = 0 getdents64(3, 0x555557030620 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./109") = 0 mkdir("./110", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555702f5d0) = 5295 ./strace-static-x86_64: Process 5295 attached [pid 5295] set_robust_list(0x55555702f5e0, 24) = 0 [pid 5295] chdir("./110") = 0 [pid 5295] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5295] setpgid(0, 0) = 0 [pid 5295] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5295] write(3, "1000", 4) = 4 [pid 5295] close(3) = 0 [pid 5295] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5295] futex(0x7fa31833d7ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pi