./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor864913046 <...> forked to background, child pid 4647 no interfaces have a carrier [ 34.332443][ T4648] 8021q: adding VLAN 0 to HW filter on device bond0 [ 34.346502][ T4648] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.0.236' (ECDSA) to the list of known hosts. execve("./syz-executor864913046", ["./syz-executor864913046"], 0x7ffc50b72fe0 /* 10 vars */) = 0 brk(NULL) = 0x555557174000 brk(0x555557174c40) = 0x555557174c40 arch_prctl(ARCH_SET_FS, 0x555557174300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 set_tid_address(0x5555571745d0) = 5072 set_robust_list(0x5555571745e0, 24) = 0 rt_sigaction(SIGRTMIN, {sa_handler=0x7fdb72944a60, sa_mask=[], sa_flags=SA_RESTORER|SA_SIGINFO, sa_restorer=0x7fdb72945130}, NULL, 8) = 0 rt_sigaction(SIGRT_1, {sa_handler=0x7fdb72944b00, sa_mask=[], sa_flags=SA_RESTORER|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fdb72945130}, 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-executor864913046", 4096) = 27 brk(0x555557195c40) = 0x555557195c40 brk(0x555557196000) = 0x555557196000 mprotect(0x7fdb72a07000, 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 socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE) = 3 socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC) = 4 sendto(4, [{nlmsg_len=36, nlmsg_type=0x10 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK, nlmsg_seq=0, nlmsg_pid=0}, "\x03\x00\x00\x00\x0d\x00\x02\x00\x6e\x6c\x38\x30\x32\x31\x35\x34\x00\x00\x00\x00"], 36, 0, {sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, 12) = 36 recvfrom(4, [{nlmsg_len=704, nlmsg_type=nlctrl, nlmsg_flags=0, nlmsg_seq=0, nlmsg_pid=5072}, "\x01\x02\x00\x00\x0d\x00\x02\x00\x6e\x6c\x38\x30\x32\x31\x35\x34\x00\x00\x00\x00\x06\x00\x01\x00\x1c\x00\x00\x00\x08\x00\x03\x00\x01\x00\x00\x00\x08\x00\x04\x00\x00\x00\x00\x00\x08\x00\x05\x00\x26\x00\x00\x00\x48\x02\x06\x00\x14\x00\x01\x00\x08\x00\x01\x00\x01\x00\x00\x00\x08\x00\x02\x00\x0e\x00\x00\x00\x14\x00\x02\x00\x08\x00\x01\x00\x05\x00\x00\x00\x08\x00\x02\x00\x0e\x00\x00\x00\x14\x00\x03\x00"...], 4096, 0, NULL, NULL) = 704 recvfrom(4, [{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=0, nlmsg_pid=5072}, {error=0, msg={nlmsg_len=36, nlmsg_type=nlctrl, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK, nlmsg_seq=0, nlmsg_pid=0}}], 4096, 0, NULL, NULL) = 36 access("/proc/net", R_OK) = 0 access("/proc/net/unix", R_OK) = 0 socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0) = 5 ioctl(5, SIOCGIFINDEX, {ifr_name="wpan0", ifr_ifindex=11}) = 0 close(5) = 0 sendto(4, [{nlmsg_len=36, nlmsg_type=nl802154, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK, nlmsg_seq=0, nlmsg_pid=0}, "\x0b\x00\x00\x00\x08\x00\x03\x00\x0b\x00\x00\x00\x06\x00\x0a\x00\xa0\xaa\x00\x00"], 36, 0, {sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, 12) = 36 recvfrom(4, [{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=0, nlmsg_pid=5072}, {error=0, msg={nlmsg_len=36, nlmsg_type=nl802154, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK, nlmsg_seq=0, nlmsg_pid=0}}], 4096, 0, NULL, NULL) = 36 socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0) = 5 ioctl(5, SIOCGIFINDEX, {ifr_name="wpan0", ifr_ifindex=11}) = 0 close(5) = 0 sendto(3, [{nlmsg_len=44, nlmsg_type=0x10 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK, nlmsg_seq=0, nlmsg_pid=0}, "\x00\x00\x00\x00\x0b\x00\x00\x00\x01\x00\x00\x00\x01\x00\x00\x00\x0c\x00\x01\x00\x02\x00\xaa\xaa\xaa\xaa\xaa\xaa"], 44, 0, {sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, 12) = 44 recvfrom(3, [{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=0, nlmsg_pid=5072}, {error=0, msg={nlmsg_len=44, nlmsg_type=RTM_NEWLINK, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK, nlmsg_seq=0, nlmsg_pid=0}}], 4096, 0, NULL, NULL) = 36 sendto(3, [{nlmsg_len=68, nlmsg_type=RTM_NEWLINK, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|NLM_F_EXCL|NLM_F_CREATE, nlmsg_seq=0, nlmsg_pid=0}, {ifi_family=AF_UNSPEC, ifi_type=ARPHRD_NETROM, ifi_index=0, ifi_flags=0, ifi_change=0}, [[{nla_len=11, nla_type=IFLA_IFNAME}, "lowpan0"...], [{nla_len=16, nla_type=IFLA_LINKINFO}, [{nla_len=10, nla_type=IFLA_INFO_KIND}, "lowpan"...]], [{nla_len=8, nla_type=IFLA_LINK}, 11]]], 68, 0, {sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, 12) = 68 recvfrom(3, [{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=0, nlmsg_pid=5072}, {error=0, msg={nlmsg_len=68, nlmsg_type=RTM_NEWLINK, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|NLM_F_EXCL|NLM_F_CREATE, nlmsg_seq=0, nlmsg_pid=0}}], 4096, 0, NULL, NULL) = 36 socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0) = 5 ioctl(5, SIOCGIFINDEX, {ifr_name="wpan1", ifr_ifindex=12}) = 0 close(5) = 0 sendto(4, [{nlmsg_len=36, nlmsg_type=nl802154, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK, nlmsg_seq=0, nlmsg_pid=0}, "\x0b\x00\x00\x00\x08\x00\x03\x00\x0c\x00\x00\x00\x06\x00\x0a\x00\xa1\xaa\x00\x00"], 36, 0, {sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, 12) = 36 recvfrom(4, [{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=0, nlmsg_pid=5072}, {error=0, msg={nlmsg_len=36, nlmsg_type=nl802154, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK, nlmsg_seq=0, nlmsg_pid=0}}], 4096, 0, NULL, NULL) = 36 socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0) = 5 ioctl(5, SIOCGIFINDEX, {ifr_name="wpan1", ifr_ifindex=12}) = 0 close(5) = 0 sendto(3, [{nlmsg_len=44, nlmsg_type=RTM_NEWLINK, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK, nlmsg_seq=0, nlmsg_pid=0}, {ifi_family=AF_UNSPEC, ifi_type=ARPHRD_NETROM, ifi_index=if_nametoindex("wpan1"), ifi_flags=IFF_UP, ifi_change=0x1}, [{nla_len=12, nla_type=IFLA_ADDRESS}, 02:01:aa:aa:aa:aa:aa]], 44, 0, {sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, 12) = 44 recvfrom(3, [{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=0, nlmsg_pid=5072}, {error=0, msg={nlmsg_len=44, nlmsg_type=RTM_NEWLINK, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK, nlmsg_seq=0, nlmsg_pid=0}}], 4096, 0, NULL, NULL) = 36 close(3) = 0 close(4) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5074 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5075 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5076 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5077 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5078 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5079 ./strace-static-x86_64: Process 5074 attached [pid 5074] set_robust_list(0x5555571745e0, 24./strace-static-x86_64: Process 5076 attached [pid 5076] set_robust_list(0x5555571745e0, 24 [pid 5074] <... set_robust_list resumed>) = 0 [pid 5074] getpid( [pid 5076] <... set_robust_list resumed>) = 0 [pid 5076] getpid( [pid 5074] <... getpid resumed>) = 5074 [pid 5074] mkdir("./syzkaller.1gQKSS", 0700) = 0 [pid 5076] <... getpid resumed>) = 5076 [pid 5076] mkdir("./syzkaller.813O02", 0700) = 0 ./strace-static-x86_64: Process 5078 attached [pid 5078] set_robust_list(0x5555571745e0, 24) = 0 ./strace-static-x86_64: Process 5075 attached ./strace-static-x86_64: Process 5077 attached [pid 5076] chmod("./syzkaller.813O02", 0777./strace-static-x86_64: Process 5079 attached [pid 5077] set_robust_list(0x5555571745e0, 24 [pid 5075] set_robust_list(0x5555571745e0, 24) = 0 [pid 5077] <... set_robust_list resumed>) = 0 [pid 5079] set_robust_list(0x5555571745e0, 24 [pid 5078] getpid( [pid 5075] getpid( [pid 5077] getpid( [pid 5078] <... getpid resumed>) = 5078 [pid 5078] mkdir("./syzkaller.5cE2Va", 0700 [pid 5077] <... getpid resumed>) = 5077 [pid 5075] <... getpid resumed>) = 5075 [pid 5078] <... mkdir resumed>) = 0 [pid 5076] <... chmod resumed>) = 0 [pid 5076] chdir("./syzkaller.813O02") = 0 [pid 5076] mkdir("./0", 0777 [pid 5075] mkdir("./syzkaller.dOsvfY", 0700 [pid 5077] mkdir("./syzkaller.P6cmU3", 0700 [pid 5074] chmod("./syzkaller.1gQKSS", 0777) = 0 [pid 5076] <... mkdir resumed>) = 0 [pid 5074] chdir("./syzkaller.1gQKSS") = 0 [pid 5078] chmod("./syzkaller.5cE2Va", 0777 [pid 5075] <... mkdir resumed>) = 0 [pid 5078] <... chmod resumed>) = 0 [pid 5079] <... set_robust_list resumed>) = 0 [pid 5077] <... mkdir resumed>) = 0 [pid 5074] mkdir("./0", 0777) = 0 [pid 5079] getpid( [pid 5075] chmod("./syzkaller.dOsvfY", 0777 [pid 5079] <... getpid resumed>) = 5079 [pid 5077] chmod("./syzkaller.P6cmU3", 0777 [pid 5076] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5075] <... chmod resumed>) = 0 [pid 5078] chdir("./syzkaller.5cE2Va" [pid 5077] <... chmod resumed>) = 0 [pid 5079] mkdir("./syzkaller.M0vkfh", 0700 [pid 5077] chdir("./syzkaller.P6cmU3" [pid 5075] chdir("./syzkaller.dOsvfY" [pid 5078] <... chdir resumed>) = 0 [pid 5078] mkdir("./0", 0777 [pid 5076] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5079] <... mkdir resumed>) = 0 [pid 5075] <... chdir resumed>) = 0 [pid 5079] chmod("./syzkaller.M0vkfh", 0777 [pid 5077] <... chdir resumed>) = 0 [pid 5075] mkdir("./0", 0777 [pid 5077] mkdir("./0", 0777 [pid 5074] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5075] <... mkdir resumed>) = 0 [pid 5074] <... openat resumed>) = 3 [pid 5077] <... mkdir resumed>) = 0 [pid 5076] close(3 [pid 5079] <... chmod resumed>) = 0 [pid 5077] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5075] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5079] chdir("./syzkaller.M0vkfh" [pid 5076] <... close resumed>) = 0 [pid 5074] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5078] <... mkdir resumed>) = 0 [pid 5074] close(3) = 0 [pid 5078] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] <... chdir resumed>) = 0 [pid 5077] <... openat resumed>) = 3 [pid 5075] <... openat resumed>) = 3 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5074] <... clone resumed>, child_tidptr=0x5555571745d0) = 5081 [pid 5076] <... clone resumed>, child_tidptr=0x5555571745d0) = 5082 [pid 5078] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5078] close(3) = 0 ./strace-static-x86_64: Process 5081 attached [pid 5078] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5081] set_robust_list(0x5555571745e0, 24) = 0 [pid 5081] chdir("./0") = 0 [pid 5081] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5081] setpgid(0, 0) = 0 [pid 5081] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5079] mkdir("./0", 0777 [pid 5077] ioctl(3, LOOP_CLR_FD [pid 5075] ioctl(3, LOOP_CLR_FD [pid 5081] write(3, "1000", 4) = 4 [pid 5079] <... mkdir resumed>) = 0 [pid 5075] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5077] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5075] close(3 [pid 5079] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5077] close(3 [pid 5075] <... close resumed>) = 0 [pid 5077] <... close resumed>) = 0 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5081] close(3) = 0 [pid 5081] symlink("/dev/binderfs", "./binderfs" [pid 5079] <... openat resumed>) = 3 [pid 5078] <... clone resumed>, child_tidptr=0x5555571745d0) = 5083 [pid 5081] <... symlink resumed>) = 0 [pid 5081] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5081] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5079] ioctl(3, LOOP_CLR_FD [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] <... clone resumed>, child_tidptr=0x5555571745d0) = 5084 [pid 5081] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5081] clone(child_stack=0x7fdb729333f0, 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=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5085 ./strace-static-x86_64: Process 5082 attached [pid 5081] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5077] <... clone resumed>, child_tidptr=0x5555571745d0) = 5086 ./strace-static-x86_64: Process 5083 attached [pid 5081] <... futex resumed>) = 0 [pid 5081] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5082] set_robust_list(0x5555571745e0, 24 [pid 5079] close(3 [pid 5083] set_robust_list(0x5555571745e0, 24) = 0 [pid 5082] <... set_robust_list resumed>) = 0 [pid 5079] <... close resumed>) = 0 [pid 5083] chdir("./0" [pid 5082] chdir("./0" [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5086 attached ./strace-static-x86_64: Process 5085 attached [pid 5083] <... chdir resumed>) = 0 [pid 5085] set_robust_list(0x7fdb729339e0, 24 [pid 5083] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5085] <... set_robust_list resumed>) = 0 [pid 5083] <... prctl resumed>) = 0 [pid 5085] memfd_create("syzkaller", 0 [pid 5083] setpgid(0, 0 [pid 5082] <... chdir resumed>) = 0 ./strace-static-x86_64: Process 5087 attached ./strace-static-x86_64: Process 5084 attached [pid 5086] set_robust_list(0x5555571745e0, 24 [pid 5085] <... memfd_create resumed>) = 3 [pid 5083] <... setpgid resumed>) = 0 [pid 5082] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5079] <... clone resumed>, child_tidptr=0x5555571745d0) = 5087 [pid 5087] set_robust_list(0x5555571745e0, 24 [pid 5086] <... set_robust_list resumed>) = 0 [pid 5085] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5084] set_robust_list(0x5555571745e0, 24 [pid 5083] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5082] <... prctl resumed>) = 0 [pid 5087] <... set_robust_list resumed>) = 0 [pid 5086] chdir("./0" [pid 5085] <... mmap resumed>) = 0x7fdb6a513000 [pid 5084] <... set_robust_list resumed>) = 0 [pid 5083] <... openat resumed>) = 3 [pid 5082] setpgid(0, 0 [pid 5087] chdir("./0" [pid 5086] <... chdir resumed>) = 0 [pid 5084] chdir("./0" [pid 5083] write(3, "1000", 4 [pid 5082] <... setpgid resumed>) = 0 [pid 5087] <... chdir resumed>) = 0 [pid 5086] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5084] <... chdir resumed>) = 0 [pid 5083] <... write resumed>) = 4 [pid 5082] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5087] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5086] <... prctl resumed>) = 0 [pid 5084] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5083] close(3 [pid 5082] <... openat resumed>) = 3 [pid 5087] <... prctl resumed>) = 0 [pid 5086] setpgid(0, 0 [pid 5084] <... prctl resumed>) = 0 [pid 5083] <... close resumed>) = 0 [pid 5082] write(3, "1000", 4 [pid 5087] setpgid(0, 0 [pid 5086] <... setpgid resumed>) = 0 [pid 5084] setpgid(0, 0 [pid 5083] symlink("/dev/binderfs", "./binderfs" [pid 5082] <... write resumed>) = 4 [pid 5087] <... setpgid resumed>) = 0 [pid 5086] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5084] <... setpgid resumed>) = 0 [pid 5082] close(3 [pid 5087] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5086] <... openat resumed>) = 3 [pid 5084] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5083] <... symlink resumed>) = 0 [pid 5082] <... close resumed>) = 0 [pid 5087] <... openat resumed>) = 3 [pid 5086] write(3, "1000", 4 [pid 5084] <... openat resumed>) = 3 [pid 5083] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5082] symlink("/dev/binderfs", "./binderfs" [pid 5087] write(3, "1000", 4 [pid 5086] <... write resumed>) = 4 [pid 5084] write(3, "1000", 4 [pid 5083] <... futex resumed>) = 0 [pid 5082] <... symlink resumed>) = 0 [pid 5087] <... write resumed>) = 4 [pid 5086] close(3 [pid 5084] <... write resumed>) = 4 [pid 5083] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5082] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5087] close(3 [pid 5086] <... close resumed>) = 0 [pid 5084] close(3 [pid 5083] <... mmap resumed>) = 0x7fdb72913000 [pid 5082] <... futex resumed>) = 0 [pid 5087] <... close resumed>) = 0 [pid 5086] symlink("/dev/binderfs", "./binderfs" [pid 5084] <... close resumed>) = 0 [pid 5083] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5082] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5087] symlink("/dev/binderfs", "./binderfs" [pid 5086] <... symlink resumed>) = 0 [pid 5084] symlink("/dev/binderfs", "./binderfs" [pid 5083] <... mprotect resumed>) = 0 [pid 5082] <... mmap resumed>) = 0x7fdb72913000 [pid 5087] <... symlink resumed>) = 0 [pid 5086] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5084] <... symlink resumed>) = 0 [pid 5083] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5082] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5087] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5086] <... futex resumed>) = 0 [pid 5084] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5082] <... mprotect resumed>) = 0 [pid 5087] <... futex resumed>) = 0 [pid 5086] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5084] <... futex resumed>) = 0 [pid 5083] <... clone resumed>, parent_tid=[5088], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5088 [pid 5082] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5087] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5086] <... mmap resumed>) = 0x7fdb72913000 [pid 5084] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5083] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5087] <... mmap resumed>) = 0x7fdb72913000 [pid 5086] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5084] <... mmap resumed>) = 0x7fdb72913000 [pid 5083] <... futex resumed>) = 0 [pid 5082] <... clone resumed>, parent_tid=[5089], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5089 [pid 5087] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5086] <... mprotect resumed>) = 0 [pid 5084] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5083] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5082] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5087] <... mprotect resumed>) = 0 [pid 5086] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5084] <... mprotect resumed>) = 0 [pid 5082] <... futex resumed>) = 0 [pid 5087] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5084] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5082] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5088 attached [pid 5086] <... clone resumed>, parent_tid=[5090], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5090 [pid 5087] <... clone resumed>, parent_tid=[5091], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5091 [pid 5086] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5084] <... clone resumed>, parent_tid=[5092], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5092 ./strace-static-x86_64: Process 5089 attached [pid 5088] set_robust_list(0x7fdb729339e0, 24 [pid 5087] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5086] <... futex resumed>) = 0 [pid 5084] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5089] set_robust_list(0x7fdb729339e0, 24 [pid 5088] <... set_robust_list resumed>) = 0 [pid 5087] <... futex resumed>) = 0 [pid 5086] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5084] <... futex resumed>) = 0 ./strace-static-x86_64: Process 5092 attached ./strace-static-x86_64: Process 5090 attached [pid 5089] <... set_robust_list resumed>) = 0 [pid 5087] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5084] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5092] set_robust_list(0x7fdb729339e0, 24 [pid 5090] set_robust_list(0x7fdb729339e0, 24 [pid 5089] memfd_create("syzkaller", 0 [pid 5088] memfd_create("syzkaller", 0 [pid 5092] <... set_robust_list resumed>) = 0 [pid 5090] <... set_robust_list resumed>) = 0 [pid 5089] <... memfd_create resumed>) = 3 [pid 5088] <... memfd_create resumed>) = 3 [pid 5092] memfd_create("syzkaller", 0 [pid 5090] memfd_create("syzkaller", 0 [pid 5089] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5088] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5092] <... memfd_create resumed>) = 3 [pid 5090] <... memfd_create resumed>) = 3 [pid 5089] <... mmap resumed>) = 0x7fdb6a513000 [pid 5088] <... mmap resumed>) = 0x7fdb6a513000 ./strace-static-x86_64: Process 5091 attached [pid 5092] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5090] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [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"..., 4194304 [pid 5092] <... mmap resumed>) = 0x7fdb6a513000 [pid 5090] <... mmap resumed>) = 0x7fdb6a513000 [pid 5091] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5091] memfd_create("syzkaller", 0) = 3 [pid 5091] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [pid 5090] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 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"..., 4194304 [pid 5092] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5088] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5091] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5085] <... write resumed>) = 4194304 [pid 5085] munmap(0x7fdb6a513000, 4194304) = 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 5091] <... write resumed>) = 4194304 [pid 5089] <... write resumed>) = 4194304 [pid 5088] <... write resumed>) = 4194304 [pid 5085] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5092] <... write resumed>) = 4194304 [pid 5091] munmap(0x7fdb6a513000, 4194304 [pid 5089] munmap(0x7fdb6a513000, 4194304 [pid 5088] munmap(0x7fdb6a513000, 4194304 [pid 5092] munmap(0x7fdb6a513000, 4194304 [pid 5090] <... write resumed>) = 4194304 [pid 5088] <... munmap resumed>) = 0 [pid 5092] <... munmap resumed>) = 0 [pid 5090] munmap(0x7fdb6a513000, 4194304) = 0 [pid 5089] <... munmap resumed>) = 0 [pid 5091] <... munmap resumed>) = 0 [pid 5091] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5089] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5092] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5090] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 5091] <... openat resumed>) = 4 [pid 5092] <... openat resumed>) = 4 [pid 5091] ioctl(4, LOOP_SET_FD, 3 [pid 5090] ioctl(4, LOOP_SET_FD, 3 [pid 5089] <... openat resumed>) = 4 syzkaller login: [ 59.516703][ T5085] loop0: detected capacity change from 0 to 8192 [pid 5088] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5092] ioctl(4, LOOP_SET_FD, 3 [pid 5091] <... ioctl resumed>) = 0 [pid 5089] ioctl(4, LOOP_SET_FD, 3 [pid 5088] <... openat resumed>) = 4 [pid 5090] <... ioctl resumed>) = 0 [pid 5090] close(3) = 0 [pid 5090] mkdir("./file0", 0777) = 0 [pid 5090] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5092] <... ioctl resumed>) = 0 [pid 5092] close(3) = 0 [pid 5092] mkdir("./file0", 0777) = 0 [pid 5092] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5091] close(3) = 0 [pid 5091] mkdir("./file0", 0777 [pid 5088] ioctl(4, LOOP_SET_FD, 3 [pid 5091] <... mkdir resumed>) = 0 [ 59.572171][ T5091] loop5: detected capacity change from 0 to 8192 [ 59.572200][ T5090] loop3: detected capacity change from 0 to 8192 [ 59.581042][ T5085] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 59.598554][ T5092] loop1: detected capacity change from 0 to 8192 [ 59.599170][ T5089] loop2: detected capacity change from 0 to 8192 [ 59.613690][ T5088] loop4: detected capacity change from 0 to 8192 [pid 5091] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5089] <... ioctl resumed>) = 0 [pid 5088] <... ioctl resumed>) = 0 [pid 5088] close(3) = 0 [ 59.616355][ T5085] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 59.624541][ T5090] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 59.629948][ T5085] REISERFS (device loop0): using ordered data mode [ 59.644857][ T5092] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 59.649147][ T5085] reiserfs: using flush barriers [pid 5088] mkdir("./file0", 0777 [pid 5089] close(3 [pid 5088] <... mkdir resumed>) = 0 [pid 5089] <... close resumed>) = 0 [pid 5088] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC, "" [ 59.666943][ T5091] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 59.669823][ T5090] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 59.689757][ T5085] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 59.706469][ T5090] REISERFS (device loop3): using ordered data mode [ 59.708866][ T5091] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [pid 5089] mkdir("./file0", 0777) = 0 [ 59.714320][ T5090] reiserfs: using flush barriers [ 59.725099][ T5092] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 59.736740][ T5090] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 59.739767][ T5085] REISERFS (device loop0): checking transaction log (loop0) [ 59.753622][ T5090] REISERFS (device loop3): checking transaction log (loop3) [ 59.764371][ T5091] REISERFS (device loop5): using ordered data mode [ 59.773056][ T5092] REISERFS (device loop1): using ordered data mode [ 59.782172][ T5089] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 59.786120][ T5088] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 59.798417][ T5091] reiserfs: using flush barriers [ 59.808452][ T5092] reiserfs: using flush barriers [ 59.814182][ T5088] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 59.827751][ T5092] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 59.828488][ T5089] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 59.848905][ T5088] REISERFS (device loop4): using ordered data mode [ 59.854350][ T5092] REISERFS (device loop1): checking transaction log (loop1) [ 59.884133][ T5088] reiserfs: using flush barriers [ 59.894283][ T5089] REISERFS (device loop2): using ordered data mode [ 59.901670][ T5088] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 59.919337][ T5089] reiserfs: using flush barriers [ 59.929845][ T5091] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 59.931216][ T5089] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 59.946687][ T5091] REISERFS (device loop5): checking transaction log (loop5) [ 59.991453][ T5088] REISERFS (device loop4): checking transaction log (loop4) [ 60.055201][ T5090] REISERFS (device loop3): Using r5 hash to sort names [ 60.061917][ T5089] REISERFS (device loop2): checking transaction log (loop2) [ 60.072663][ T5091] REISERFS (device loop5): Using r5 hash to sort names [pid 5089] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5091] <... mount resumed>) = 0 [pid 5091] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5091] chdir("./file0") = 0 [pid 5091] ioctl(4, LOOP_CLR_FD) = 0 [ 60.097894][ T5091] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 60.104639][ T5090] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [pid 5091] close(4 [pid 5090] <... mount resumed>) = 0 [pid 5090] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5090] chdir("./file0") = 0 [pid 5090] ioctl(4, LOOP_CLR_FD) = 0 [pid 5090] close(4) = 0 [pid 5090] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5086] <... futex resumed>) = 0 [pid 5086] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5086] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5090] <... futex resumed>) = 1 [pid 5091] <... close resumed>) = 0 [pid 5091] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5091] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5087] <... futex resumed>) = 0 [pid 5087] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5091] <... futex resumed>) = 0 [pid 5087] <... futex resumed>) = 1 [pid 5091] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5087] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5090] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5091] <... open resumed>) = 4 [pid 5090] <... open resumed>) = 4 [ 60.143033][ T5085] REISERFS (device loop0): Using r5 hash to sort names [ 60.174549][ T5088] REISERFS (device loop4): Using r5 hash to sort names [ 60.182124][ T5088] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [pid 5091] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5090] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5086] <... futex resumed>) = 0 [pid 5090] ioctl(4, FS_IOC_GETVERSION [pid 5086] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5090] <... ioctl resumed>, 0x20000080) = 0 [pid 5086] <... futex resumed>) = 0 [pid 5090] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5086] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5090] <... futex resumed>) = 0 [pid 5086] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5090] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5086] exit_group(0 [pid 5090] <... futex resumed>) = ? [pid 5086] <... exit_group resumed>) = ? [pid 5090] +++ exited with 0 +++ [pid 5086] +++ exited with 0 +++ [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5086, si_uid=0, si_status=0, si_utime=0, si_stime=24 /* 0.24 s */} --- [pid 5091] <... futex resumed>) = 1 [pid 5087] <... futex resumed>) = 0 [pid 5077] umount2("./0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5091] ioctl(4, FS_IOC_GETVERSION [pid 5087] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5091] <... ioctl resumed>, 0x20000080) = 0 [pid 5087] <... futex resumed>) = 0 [pid 5077] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5091] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5087] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5077] <... openat resumed>) = 3 [pid 5091] <... futex resumed>) = 0 [pid 5087] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5077] fstat(3, [pid 5091] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5087] exit_group(0 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5091] <... futex resumed>) = ? [pid 5087] <... exit_group resumed>) = ? [pid 5077] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5077] umount2("./0/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5091] +++ exited with 0 +++ [pid 5087] +++ exited with 0 +++ [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5087, si_uid=0, si_status=0, si_utime=0, si_stime=21 /* 0.21 s */} --- [pid 5077] lstat("./0/binderfs", [pid 5079] restart_syscall(<... resuming interrupted clone ...> [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] <... restart_syscall resumed>) = 0 [pid 5077] unlink("./0/binderfs") = 0 [pid 5077] umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] umount2("./0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5085] <... mount resumed>) = 0 [pid 5079] <... openat resumed>) = 3 [pid 5079] fstat(3, [pid 5085] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5085] <... openat resumed>) = 3 [pid 5079] getdents64(3, [pid 5085] chdir("./file0" [pid 5079] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5079] umount2("./0/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5085] <... chdir resumed>) = 0 [pid 5079] lstat("./0/binderfs", [pid 5085] ioctl(4, LOOP_CLR_FD [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [ 60.190270][ T5085] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 60.220788][ T5092] REISERFS (device loop1): Using r5 hash to sort names [pid 5085] <... ioctl resumed>) = 0 [pid 5079] unlink("./0/binderfs" [pid 5085] close(4 [pid 5079] <... unlink resumed>) = 0 [pid 5085] <... close resumed>) = 0 [pid 5079] umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5088] <... mount resumed>) = 0 [pid 5088] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5088] chdir("./file0") = 0 [pid 5088] ioctl(4, LOOP_CLR_FD) = 0 [pid 5088] close(4) = 0 [pid 5088] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5083] <... futex resumed>) = 0 [pid 5088] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5083] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5088] <... futex resumed>) = 0 [pid 5083] <... futex resumed>) = 1 [pid 5085] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5083] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5088] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5085] <... futex resumed>) = 1 [pid 5081] <... futex resumed>) = 0 [pid 5088] <... open resumed>) = 4 [pid 5085] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5081] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5088] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5085] <... open resumed>) = 4 [pid 5081] <... futex resumed>) = 0 [pid 5088] <... futex resumed>) = 1 [pid 5085] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5081] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5088] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5085] <... futex resumed>) = 0 [pid 5083] <... futex resumed>) = 0 [pid 5081] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5085] ioctl(4, FS_IOC_GETVERSION [pid 5083] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5081] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5088] <... futex resumed>) = 0 [pid 5083] <... futex resumed>) = 1 [pid 5081] <... futex resumed>) = 0 [pid 5088] ioctl(4, FS_IOC_GETVERSION [pid 5085] <... ioctl resumed>, 0x20000080) = 0 [pid 5083] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5081] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5088] <... ioctl resumed>, 0x20000080) = 0 [pid 5085] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5081] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5088] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5085] <... futex resumed>) = 0 [pid 5081] exit_group(0 [pid 5088] <... futex resumed>) = 1 [pid 5083] <... futex resumed>) = 0 [pid 5081] <... exit_group resumed>) = ? [pid 5088] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5083] exit_group(0 [pid 5088] <... futex resumed>) = ? [pid 5083] <... exit_group resumed>) = ? [pid 5088] +++ exited with 0 +++ [pid 5085] +++ exited with 0 +++ [pid 5083] +++ exited with 0 +++ [pid 5081] +++ exited with 0 +++ [pid 5078] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5083, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- [pid 5092] <... mount resumed>) = 0 [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5081, si_uid=0, si_status=0, si_utime=0, si_stime=22 /* 0.22 s */} --- [pid 5092] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5074] umount2("./0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5092] <... openat resumed>) = 3 [pid 5078] umount2("./0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5092] chdir("./file0" [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5092] <... chdir resumed>) = 0 [pid 5078] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5074] <... openat resumed>) = 3 [pid 5092] ioctl(4, LOOP_CLR_FD [pid 5078] <... openat resumed>) = 3 [pid 5074] fstat(3, [pid 5092] <... ioctl resumed>) = 0 [pid 5078] fstat(3, [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5092] close(4 [pid 5078] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] getdents64(3, [pid 5092] <... close resumed>) = 0 [pid 5078] getdents64(3, [pid 5074] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5092] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [ 60.259523][ T5092] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [pid 5074] umount2("./0/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5092] <... futex resumed>) = 1 [pid 5084] <... futex resumed>) = 0 [pid 5078] umount2("./0/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5092] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5084] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] lstat("./0/binderfs", [pid 5092] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5084] <... futex resumed>) = 0 [pid 5078] lstat("./0/binderfs", [pid 5074] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5092] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5084] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5078] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5074] unlink("./0/binderfs" [pid 5092] <... open resumed>) = 4 [pid 5078] unlink("./0/binderfs" [pid 5074] <... unlink resumed>) = 0 [pid 5092] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5074] umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5092] <... futex resumed>) = 1 [pid 5084] <... futex resumed>) = 0 [pid 5078] <... unlink resumed>) = 0 [pid 5092] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5084] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5092] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5084] <... futex resumed>) = 0 [pid 5092] ioctl(4, FS_IOC_GETVERSION [pid 5084] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5092] <... ioctl resumed>, 0x20000080) = 0 [pid 5092] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5084] <... futex resumed>) = 0 [pid 5092] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5084] exit_group(0 [pid 5092] <... futex resumed>) = ? [pid 5084] <... exit_group resumed>) = ? [pid 5092] +++ exited with 0 +++ [pid 5084] +++ exited with 0 +++ [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5084, si_uid=0, si_status=0, si_utime=0, si_stime=24 /* 0.24 s */} --- [pid 5075] umount2("./0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5075] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5075] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5075] umount2("./0/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5075] lstat("./0/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] unlink("./0/binderfs") = 0 [pid 5075] umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5078] <... umount2 resumed>) = 0 [pid 5078] umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5078] lstat("./0/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5078] openat(AT_FDCWD, "./0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5078] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5078] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5078] close(4) = 0 [pid 5078] rmdir("./0/file0") = 0 [pid 5078] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5078] close(3) = 0 [pid 5078] rmdir("./0") = 0 [pid 5078] mkdir("./1", 0777) = 0 [pid 5078] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5078] ioctl(3, LOOP_CLR_FD) = 0 [pid 5078] close(3) = 0 [pid 5078] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5099 [ 60.351304][ T5089] REISERFS (device loop2): Using r5 hash to sort names [ 60.376029][ T5089] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. ./strace-static-x86_64: Process 5099 attached [pid 5089] <... mount resumed>) = 0 [pid 5099] set_robust_list(0x5555571745e0, 24 [pid 5089] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5099] <... set_robust_list resumed>) = 0 [pid 5089] <... openat resumed>) = 3 [pid 5099] chdir("./1" [pid 5089] chdir("./file0" [pid 5077] <... umount2 resumed>) = 0 [pid 5075] <... umount2 resumed>) = 0 [pid 5099] <... chdir resumed>) = 0 [pid 5099] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5089] <... chdir resumed>) = 0 [pid 5075] umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5099] setpgid(0, 0) = 0 [pid 5099] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5089] ioctl(4, LOOP_CLR_FD [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5099] <... openat resumed>) = 3 [pid 5089] <... ioctl resumed>) = 0 [pid 5099] write(3, "1000", 4) = 4 [pid 5099] close(3 [pid 5089] close(4 [pid 5075] lstat("./0/file0", [pid 5099] <... close resumed>) = 0 [pid 5099] symlink("/dev/binderfs", "./binderfs" [pid 5089] <... close resumed>) = 0 [pid 5075] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5099] <... symlink resumed>) = 0 [pid 5089] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5075] umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5099] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5089] <... futex resumed>) = 1 [pid 5082] <... futex resumed>) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5099] <... futex resumed>) = 0 [pid 5089] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5082] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5075] openat(AT_FDCWD, "./0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5099] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5089] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5082] <... futex resumed>) = 0 [pid 5099] <... mmap resumed>) = 0x7fdb72913000 [pid 5089] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5082] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5077] umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... openat resumed>) = 4 [pid 5099] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5089] <... open resumed>) = 4 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] fstat(4, [pid 5099] <... mprotect resumed>) = 0 [pid 5089] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] lstat("./0/file0", [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5099] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5089] <... futex resumed>) = 1 [pid 5082] <... futex resumed>) = 0 [pid 5077] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] getdents64(4, [pid 5089] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5082] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5075] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5099] <... clone resumed>, parent_tid=[5103], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5103 [pid 5089] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5082] <... futex resumed>) = 0 [pid 5077] umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] getdents64(4, [pid 5099] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5089] ioctl(4, FS_IOC_GETVERSION [pid 5082] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5099] <... futex resumed>) = 0 [pid 5089] <... ioctl resumed>, 0x20000080) = 0 [pid 5079] <... umount2 resumed>) = 0 [pid 5077] openat(AT_FDCWD, "./0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] close(4./strace-static-x86_64: Process 5103 attached [pid 5099] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5089] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] <... openat resumed>) = 4 [pid 5075] <... close resumed>) = 0 [pid 5103] set_robust_list(0x7fdb729339e0, 24 [pid 5089] <... futex resumed>) = 1 [pid 5082] <... futex resumed>) = 0 [pid 5079] umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] fstat(4, [pid 5075] rmdir("./0/file0" [pid 5103] <... set_robust_list resumed>) = 0 [pid 5089] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5082] exit_group(0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] <... rmdir resumed>) = 0 [pid 5103] memfd_create("syzkaller", 0 [pid 5089] <... futex resumed>) = ? [pid 5082] <... exit_group resumed>) = ? [pid 5079] lstat("./0/file0", [pid 5077] getdents64(4, [pid 5075] getdents64(3, [pid 5103] <... memfd_create resumed>) = 3 [pid 5089] +++ exited with 0 +++ [pid 5077] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5075] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5103] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5082] +++ exited with 0 +++ [pid 5077] getdents64(4, [pid 5075] close(3 [pid 5103] <... mmap resumed>) = 0x7fdb6a513000 [pid 5079] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5075] <... close resumed>) = 0 [pid 5079] umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] close(4 [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5082, si_uid=0, si_status=0, si_utime=0, si_stime=21 /* 0.21 s */} --- [pid 5075] rmdir("./0" [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... close resumed>) = 0 [pid 5076] umount2("./0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... rmdir resumed>) = 0 [pid 5079] openat(AT_FDCWD, "./0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] rmdir("./0/file0" [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] mkdir("./1", 0777 [pid 5079] <... openat resumed>) = 4 [pid 5077] <... rmdir resumed>) = 0 [pid 5076] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] <... mkdir resumed>) = 0 [pid 5079] fstat(4, [pid 5077] getdents64(3, [pid 5075] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5074] <... umount2 resumed>) = 0 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5076] <... openat resumed>) = 3 [pid 5079] getdents64(4, [pid 5077] close(3 [pid 5079] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5077] <... close resumed>) = 0 [pid 5076] fstat(3, [pid 5079] getdents64(4, [pid 5077] rmdir("./0" [pid 5079] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5077] <... rmdir resumed>) = 0 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] close(4 [pid 5077] mkdir("./1", 0777 [pid 5074] umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... close resumed>) = 0 [pid 5077] <... mkdir resumed>) = 0 [pid 5076] getdents64(3, [pid 5079] rmdir("./0/file0" [pid 5077] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... openat resumed>) = 3 [pid 5076] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5079] <... rmdir resumed>) = 0 [pid 5077] ioctl(3, LOOP_CLR_FD [pid 5076] umount2("./0/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... openat resumed>) = 3 [pid 5074] lstat("./0/file0", [pid 5079] getdents64(3, [pid 5077] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] ioctl(3, LOOP_CLR_FD [pid 5079] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5077] close(3 [pid 5076] lstat("./0/binderfs", [pid 5075] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5074] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] close(3 [pid 5077] <... close resumed>) = 0 [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] close(3 [pid 5074] umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... close resumed>) = 0 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] unlink("./0/binderfs" [pid 5075] <... close resumed>) = 0 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] rmdir("./0" [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5074] openat(AT_FDCWD, "./0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] <... rmdir resumed>) = 0 [pid 5077] <... clone resumed>, child_tidptr=0x5555571745d0) = 5105 [pid 5076] <... unlink resumed>) = 0 [pid 5074] <... openat resumed>) = 4 [pid 5079] mkdir("./1", 0777 [pid 5076] umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... clone resumed>, child_tidptr=0x5555571745d0) = 5106 [pid 5074] fstat(4, [pid 5079] <... mkdir resumed>) = 0 [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5074] getdents64(4, ./strace-static-x86_64: Process 5105 attached [pid 5079] <... openat resumed>) = 3 [pid 5074] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 ./strace-static-x86_64: Process 5106 attached [pid 5105] set_robust_list(0x5555571745e0, 24 [pid 5079] ioctl(3, LOOP_CLR_FD [pid 5074] getdents64(4, [pid 5106] set_robust_list(0x5555571745e0, 24 [pid 5105] <... set_robust_list resumed>) = 0 [pid 5074] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5106] <... set_robust_list resumed>) = 0 [pid 5105] chdir("./1" [pid 5079] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5074] close(4 [pid 5106] chdir("./1" [pid 5105] <... chdir resumed>) = 0 [pid 5079] close(3 [pid 5074] <... close resumed>) = 0 [pid 5106] <... chdir resumed>) = 0 [pid 5105] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5079] <... close resumed>) = 0 [pid 5074] rmdir("./0/file0" [pid 5106] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5105] <... prctl resumed>) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5074] <... rmdir resumed>) = 0 [pid 5106] <... prctl resumed>) = 0 [pid 5105] setpgid(0, 0 [pid 5074] getdents64(3, [pid 5106] setpgid(0, 0 [pid 5105] <... setpgid resumed>) = 0 [pid 5074] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5106] <... setpgid resumed>) = 0 [pid 5105] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5079] <... clone resumed>, child_tidptr=0x5555571745d0) = 5107 [pid 5074] close(3 [pid 5106] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5105] <... openat resumed>) = 3 [pid 5074] <... close resumed>) = 0 ./strace-static-x86_64: Process 5107 attached [pid 5106] <... openat resumed>) = 3 [pid 5105] write(3, "1000", 4 [pid 5074] rmdir("./0" [pid 5107] set_robust_list(0x5555571745e0, 24 [pid 5106] write(3, "1000", 4 [pid 5105] <... write resumed>) = 4 [pid 5074] <... rmdir resumed>) = 0 [pid 5107] <... set_robust_list resumed>) = 0 [pid 5106] <... write resumed>) = 4 [pid 5105] close(3 [pid 5074] mkdir("./1", 0777 [pid 5107] chdir("./1" [pid 5106] close(3 [pid 5105] <... close resumed>) = 0 [pid 5074] <... mkdir resumed>) = 0 [pid 5107] <... chdir resumed>) = 0 [pid 5106] <... close resumed>) = 0 [pid 5105] symlink("/dev/binderfs", "./binderfs" [pid 5074] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5107] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5106] symlink("/dev/binderfs", "./binderfs" [pid 5105] <... symlink resumed>) = 0 [pid 5074] <... openat resumed>) = 3 [pid 5107] <... prctl resumed>) = 0 [pid 5106] <... symlink resumed>) = 0 [pid 5105] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5074] ioctl(3, LOOP_CLR_FD [pid 5107] setpgid(0, 0 [pid 5106] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5105] <... futex resumed>) = 0 [pid 5076] <... umount2 resumed>) = 0 [pid 5074] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5107] <... setpgid resumed>) = 0 [pid 5106] <... futex resumed>) = 0 [pid 5105] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5076] umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] close(3 [pid 5107] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5106] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5105] <... mmap resumed>) = 0x7fdb72913000 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] <... close resumed>) = 0 [pid 5107] <... openat resumed>) = 3 [pid 5106] <... mmap resumed>) = 0x7fdb72913000 [pid 5105] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5076] lstat("./0/file0", [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5107] write(3, "1000", 4 [pid 5106] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5105] <... mprotect resumed>) = 0 [pid 5076] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5107] <... write resumed>) = 4 [pid 5106] <... mprotect resumed>) = 0 [pid 5105] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5076] umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] <... clone resumed>, child_tidptr=0x5555571745d0) = 5108 [pid 5107] close(3 [pid 5106] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5103] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5108 attached [pid 5107] <... close resumed>) = 0 [pid 5105] <... clone resumed>, parent_tid=[5109], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5109 [pid 5076] openat(AT_FDCWD, "./0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5107] symlink("/dev/binderfs", "./binderfs" [pid 5106] <... clone resumed>, parent_tid=[5110], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5110 [pid 5105] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5076] <... openat resumed>) = 4 [pid 5107] <... symlink resumed>) = 0 [pid 5106] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5105] <... futex resumed>) = 0 [pid 5076] fstat(4, ./strace-static-x86_64: Process 5109 attached [pid 5108] set_robust_list(0x5555571745e0, 24 [pid 5107] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5106] <... futex resumed>) = 0 [pid 5105] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5109] set_robust_list(0x7fdb729339e0, 24 [pid 5106] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5076] getdents64(4, [pid 5109] <... set_robust_list resumed>) = 0 [pid 5076] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5109] memfd_create("syzkaller", 0 [pid 5076] getdents64(4, [pid 5109] <... memfd_create resumed>) = 3 [pid 5076] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5109] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5076] close(4 [pid 5109] <... mmap resumed>) = 0x7fdb6a513000 [pid 5076] <... close resumed>) = 0 [pid 5107] <... futex resumed>) = 0 [pid 5076] rmdir("./0/file0") = 0 [pid 5108] <... set_robust_list resumed>) = 0 [pid 5107] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5076] getdents64(3, [pid 5108] chdir("./1" [pid 5107] <... mmap resumed>) = 0x7fdb72913000 [pid 5076] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5108] <... chdir resumed>) = 0 [pid 5107] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5076] close(3 [pid 5108] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5107] <... mprotect resumed>) = 0 [pid 5076] <... close resumed>) = 0 [pid 5108] <... prctl resumed>) = 0 [pid 5107] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5076] rmdir("./0"./strace-static-x86_64: Process 5110 attached [pid 5108] setpgid(0, 0 [pid 5076] <... rmdir resumed>) = 0 [pid 5110] set_robust_list(0x7fdb729339e0, 24 [pid 5108] <... setpgid resumed>) = 0 [pid 5107] <... clone resumed>, parent_tid=[5111], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5111 [pid 5076] mkdir("./1", 0777 [pid 5110] <... set_robust_list resumed>) = 0 [pid 5108] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5107] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5076] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 5111 attached [pid 5108] <... openat resumed>) = 3 [pid 5107] <... futex resumed>) = 0 [pid 5076] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5110] memfd_create("syzkaller", 0 [pid 5111] set_robust_list(0x7fdb729339e0, 24 [pid 5108] write(3, "1000", 4 [pid 5107] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5076] <... openat resumed>) = 3 [pid 5111] <... set_robust_list resumed>) = 0 [pid 5110] <... memfd_create resumed>) = 3 [pid 5108] <... write resumed>) = 4 [pid 5076] ioctl(3, LOOP_CLR_FD [pid 5111] memfd_create("syzkaller", 0 [pid 5110] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5108] close(3 [pid 5111] <... memfd_create resumed>) = 3 [pid 5110] <... mmap resumed>) = 0x7fdb6a513000 [pid 5108] <... close resumed>) = 0 [pid 5111] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5108] symlink("/dev/binderfs", "./binderfs" [pid 5111] <... mmap resumed>) = 0x7fdb6a513000 [pid 5108] <... symlink resumed>) = 0 [pid 5108] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5108] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5108] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5108] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5112], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5112 [pid 5108] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5108] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5112 attached [pid 5112] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5110] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5109] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5112] memfd_create("syzkaller", 0 [pid 5103] <... write resumed>) = 4194304 [pid 5103] munmap(0x7fdb6a513000, 4194304) = 0 [pid 5103] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5103] ioctl(4, LOOP_SET_FD, 3 [pid 5112] <... memfd_create resumed>) = 3 [pid 5112] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [pid 5111] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5103] <... ioctl resumed>) = 0 [pid 5103] close(3) = 0 [pid 5103] mkdir("./file0", 0777) = 0 [ 60.836490][ T5103] loop4: detected capacity change from 0 to 8192 [pid 5103] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5112] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5110] <... write resumed>) = 4194304 [pid 5109] <... write resumed>) = 4194304 [pid 5110] munmap(0x7fdb6a513000, 4194304 [pid 5109] munmap(0x7fdb6a513000, 4194304 [pid 5110] <... munmap resumed>) = 0 [pid 5076] <... ioctl resumed>) = 0 [pid 5110] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5109] <... munmap resumed>) = 0 [pid 5110] <... openat resumed>) = 4 [pid 5076] close(3 [pid 5110] ioctl(4, LOOP_SET_FD, 3 [pid 5076] <... close resumed>) = 0 [pid 5110] <... ioctl resumed>) = 0 [ 60.902454][ T5103] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 60.928398][ T5103] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 60.938158][ T5103] REISERFS (device loop4): using ordered data mode [ 60.946021][ T5103] reiserfs: using flush barriers [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5109] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 5110] close(3 [pid 5109] ioctl(4, LOOP_SET_FD, 3 [pid 5076] <... clone resumed>, child_tidptr=0x5555571745d0) = 5114 [pid 5111] <... write resumed>) = 4194304 [pid 5110] <... close resumed>) = 0 [pid 5110] mkdir("./file0", 0777./strace-static-x86_64: Process 5114 attached [pid 5111] munmap(0x7fdb6a513000, 4194304 [pid 5110] <... mkdir resumed>) = 0 [pid 5114] set_robust_list(0x5555571745e0, 24 [pid 5111] <... munmap resumed>) = 0 [pid 5110] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5114] <... set_robust_list resumed>) = 0 [pid 5111] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5114] chdir("./1") = 0 [pid 5111] <... openat resumed>) = 4 [pid 5114] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5111] ioctl(4, LOOP_SET_FD, 3 [pid 5114] <... prctl resumed>) = 0 [ 60.951097][ T5110] loop1: detected capacity change from 0 to 8192 [ 60.972184][ T5103] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 60.973092][ T5109] loop3: detected capacity change from 0 to 8192 [ 60.989029][ T5103] REISERFS (device loop4): checking transaction log (loop4) [pid 5114] setpgid(0, 0) = 0 [pid 5114] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5114] write(3, "1000", 4) = 4 [pid 5114] close(3) = 0 [pid 5114] symlink("/dev/binderfs", "./binderfs" [pid 5111] <... ioctl resumed>) = 0 [pid 5109] <... ioctl resumed>) = 0 [pid 5111] close(3) = 0 [pid 5109] close(3 [pid 5111] mkdir("./file0", 0777) = 0 [pid 5109] <... close resumed>) = 0 [pid 5111] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5109] mkdir("./file0", 0777) = 0 [pid 5109] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5114] <... symlink resumed>) = 0 [ 61.018559][ T5111] loop5: detected capacity change from 0 to 8192 [ 61.034641][ T5110] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 61.051865][ T5110] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [pid 5114] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5114] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5114] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [ 61.054997][ T5111] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 61.062501][ T5110] REISERFS (device loop1): using ordered data mode [ 61.075232][ T5109] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 61.082144][ T5110] reiserfs: using flush barriers [ 61.103473][ T5111] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [pid 5114] clone(child_stack=0x7fdb729333f0, 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=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5118 [pid 5114] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 61.113303][ T5111] REISERFS (device loop5): using ordered data mode [ 61.115096][ T5110] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 61.120441][ T5111] reiserfs: using flush barriers [ 61.143116][ T5109] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 61.146013][ T5111] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 ./strace-static-x86_64: Process 5118 attached [pid 5118] set_robust_list(0x7fdb729339e0, 24 [pid 5114] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5118] <... set_robust_list resumed>) = 0 [pid 5118] memfd_create("syzkaller", 0) = 3 [pid 5118] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [pid 5112] <... write resumed>) = 4194304 [pid 5112] munmap(0x7fdb6a513000, 4194304) = 0 [pid 5112] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [ 61.152559][ T5109] REISERFS (device loop3): using ordered data mode [ 61.190373][ T5109] reiserfs: using flush barriers [pid 5112] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5112] close(3) = 0 [pid 5112] mkdir("./file0", 0777) = 0 [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"..., 4194304 [pid 5103] <... mount resumed>) = 0 [pid 5103] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5112] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5103] <... openat resumed>) = 3 [ 61.207532][ T5109] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 61.215717][ T5112] loop0: detected capacity change from 0 to 8192 [ 61.223924][ T5103] REISERFS (device loop4): Using r5 hash to sort names [ 61.237694][ T5103] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 61.248365][ T5109] REISERFS (device loop3): checking transaction log (loop3) [pid 5103] chdir("./file0") = 0 [pid 5103] ioctl(4, LOOP_CLR_FD) = 0 [pid 5103] close(4) = 0 [pid 5103] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5099] <... futex resumed>) = 0 [pid 5103] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5099] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5103] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5099] <... futex resumed>) = 0 [pid 5103] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5099] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5103] <... open resumed>) = 4 [pid 5103] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5099] <... futex resumed>) = 0 [pid 5103] ioctl(4, FS_IOC_GETVERSION [pid 5099] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5103] <... ioctl resumed>, 0x20000080) = 0 [pid 5099] <... futex resumed>) = 0 [ 61.266732][ T5110] REISERFS (device loop1): checking transaction log (loop1) [ 61.276519][ T5112] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 61.280271][ T5111] REISERFS (device loop5): checking transaction log (loop5) [pid 5103] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5099] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5103] <... futex resumed>) = 0 [pid 5099] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5103] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5099] exit_group(0 [pid 5103] <... futex resumed>) = ? [pid 5099] <... exit_group resumed>) = ? [pid 5103] +++ exited with 0 +++ [pid 5099] +++ exited with 0 +++ [pid 5078] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5099, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=22 /* 0.22 s */} --- [ 61.325674][ T5112] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 61.335715][ T5112] REISERFS (device loop0): using ordered data mode [ 61.342450][ T5112] reiserfs: using flush barriers [ 61.357842][ T5112] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5078] umount2("./1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5078] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5078] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5078] umount2("./1/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5078] lstat("./1/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5078] unlink("./1/binderfs") = 0 [pid 5078] umount2("./1/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5118] <... write resumed>) = 4194304 [ 61.386869][ T5112] REISERFS (device loop0): checking transaction log (loop0) [ 61.415375][ T5109] REISERFS (device loop3): Using r5 hash to sort names [pid 5118] munmap(0x7fdb6a513000, 4194304) = 0 [pid 5118] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5118] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5118] close(3) = 0 [pid 5118] mkdir("./file0", 0777 [pid 5109] <... mount resumed>) = 0 [pid 5109] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5118] <... mkdir resumed>) = 0 [pid 5109] chdir("./file0" [pid 5118] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5109] <... chdir resumed>) = 0 [pid 5109] ioctl(4, LOOP_CLR_FD) = 0 [pid 5109] close(4) = 0 [pid 5109] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [ 61.465662][ T5111] REISERFS (device loop5): Using r5 hash to sort names [ 61.471574][ T5109] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 61.472765][ T5111] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 61.495019][ T5118] loop2: detected capacity change from 0 to 8192 [pid 5105] <... futex resumed>) = 0 [pid 5109] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5105] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5109] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5105] <... futex resumed>) = 0 [pid 5109] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5105] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5109] <... open resumed>) = 4 [pid 5109] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5109] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5111] <... mount resumed>) = 0 [pid 5111] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5105] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5105] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5105] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5111] <... openat resumed>) = 3 [pid 5109] <... futex resumed>) = 0 [pid 5109] ioctl(4, FS_IOC_GETVERSION, 0x20000080) = 0 [pid 5111] chdir("./file0" [pid 5109] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5111] <... chdir resumed>) = 0 [pid 5111] ioctl(4, LOOP_CLR_FD) = 0 [pid 5111] close(4) = 0 [pid 5109] <... futex resumed>) = 1 [pid 5105] <... futex resumed>) = 0 [pid 5109] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5105] exit_group(0 [pid 5109] <... futex resumed>) = ? [pid 5105] <... exit_group resumed>) = ? [pid 5109] +++ exited with 0 +++ [pid 5105] +++ exited with 0 +++ [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5105, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=21 /* 0.21 s */} --- [pid 5111] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5107] <... futex resumed>) = 0 [pid 5107] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5107] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5111] <... futex resumed>) = 1 [pid 5077] restart_syscall(<... resuming interrupted clone ...> [pid 5111] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 5077] <... restart_syscall resumed>) = 0 [pid 5077] umount2("./1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5111] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] <... openat resumed>) = 3 [pid 5107] <... futex resumed>) = 0 [pid 5077] fstat(3, [pid 5107] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5107] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5077] getdents64(3, [pid 5111] <... futex resumed>) = 1 [pid 5111] ioctl(4, FS_IOC_GETVERSION [pid 5077] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5111] <... ioctl resumed>, 0x20000080) = 0 [pid 5077] umount2("./1/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5111] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 61.554033][ T5118] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 61.587611][ T5112] REISERFS (device loop0): Using r5 hash to sort names [pid 5111] <... futex resumed>) = 1 [pid 5107] <... futex resumed>) = 0 [pid 5077] lstat("./1/binderfs", [pid 5107] exit_group(0) = ? [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5111] +++ exited with 0 +++ [pid 5107] +++ exited with 0 +++ [pid 5077] unlink("./1/binderfs") = 0 [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5107, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=18 /* 0.18 s */} --- [pid 5077] umount2("./1/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] restart_syscall(<... resuming interrupted clone ...>) = 0 [ 61.608466][ T5112] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 61.636604][ T5118] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 61.649338][ T5118] REISERFS (device loop2): using ordered data mode [pid 5079] umount2("./1", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5112] <... mount resumed>) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5112] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5079] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5078] <... umount2 resumed>) = 0 [pid 5112] <... openat resumed>) = 3 [pid 5079] <... openat resumed>) = 3 [pid 5078] umount2("./1/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5112] chdir("./file0" [pid 5079] fstat(3, [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5078] lstat("./1/file0", [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5112] <... chdir resumed>) = 0 [pid 5078] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5112] ioctl(4, LOOP_CLR_FD [pid 5079] getdents64(3, [pid 5078] umount2("./1/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5078] openat(AT_FDCWD, "./1/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5112] <... ioctl resumed>) = 0 [pid 5079] umount2("./1/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5078] <... openat resumed>) = 4 [pid 5112] close(4 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5078] fstat(4, [pid 5112] <... close resumed>) = 0 [pid 5079] lstat("./1/binderfs", [pid 5078] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5112] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5108] <... futex resumed>) = 0 [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5078] getdents64(4, [pid 5112] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5108] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] unlink("./1/binderfs" [pid 5078] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5079] <... unlink resumed>) = 0 [pid 5112] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5108] <... futex resumed>) = 0 [pid 5078] getdents64(4, [pid 5079] umount2("./1/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5112] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5108] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5078] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5112] <... open resumed>) = 4 [pid 5112] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] close(4 [pid 5112] <... futex resumed>) = 1 [pid 5108] <... futex resumed>) = 0 [pid 5078] <... close resumed>) = 0 [pid 5112] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5108] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] rmdir("./1/file0" [pid 5112] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5108] <... futex resumed>) = 0 [pid 5078] <... rmdir resumed>) = 0 [pid 5112] ioctl(4, FS_IOC_GETVERSION [pid 5108] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [ 61.656396][ T5118] reiserfs: using flush barriers [ 61.657961][ T5110] REISERFS (device loop1): Using r5 hash to sort names [ 61.668712][ T5118] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 61.685405][ T5110] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 61.690288][ T5118] REISERFS (device loop2): checking transaction log (loop2) [pid 5078] getdents64(3, [pid 5112] <... ioctl resumed>, 0x20000080) = 0 [pid 5078] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5112] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] close(3 [pid 5112] <... futex resumed>) = 1 [pid 5078] <... close resumed>) = 0 [pid 5112] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5108] <... futex resumed>) = 0 [pid 5078] rmdir("./1" [pid 5108] exit_group(0 [pid 5078] <... rmdir resumed>) = 0 [pid 5112] <... futex resumed>) = ? [pid 5108] <... exit_group resumed>) = ? [pid 5078] mkdir("./2", 0777 [pid 5112] +++ exited with 0 +++ [pid 5108] +++ exited with 0 +++ [pid 5078] <... mkdir resumed>) = 0 [pid 5078] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5110] <... mount resumed>) = 0 [pid 5110] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5078] <... openat resumed>) = 3 [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5108, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=18 /* 0.18 s */} --- [pid 5110] <... openat resumed>) = 3 [pid 5078] ioctl(3, LOOP_CLR_FD [pid 5110] chdir("./file0" [pid 5074] umount2("./1", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5110] <... chdir resumed>) = 0 [pid 5078] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5078] close(3 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5110] ioctl(4, LOOP_CLR_FD [pid 5078] <... close resumed>) = 0 [pid 5074] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5110] <... ioctl resumed>) = 0 [pid 5078] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5074] <... openat resumed>) = 3 [pid 5110] close(4 [pid 5074] fstat(3, [pid 5110] <... close resumed>) = 0 [pid 5078] <... clone resumed>, child_tidptr=0x5555571745d0) = 5121 [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5110] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5074] getdents64(3, [pid 5110] <... futex resumed>) = 1 [pid 5106] <... futex resumed>) = 0 [pid 5074] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5110] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5106] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5074] umount2("./1/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5110] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5106] <... futex resumed>) = 0 [pid 5110] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5106] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5110] <... open resumed>) = 4 [pid 5074] lstat("./1/binderfs", [pid 5110] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5074] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5110] <... futex resumed>) = 1 [pid 5106] <... futex resumed>) = 0 [pid 5074] unlink("./1/binderfs" [pid 5110] ioctl(4, FS_IOC_GETVERSION [pid 5106] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5110] <... ioctl resumed>, 0x20000080) = 0 [pid 5106] <... futex resumed>) = 0 [pid 5074] <... unlink resumed>) = 0 ./strace-static-x86_64: Process 5121 attached [pid 5110] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5106] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5074] umount2("./1/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5121] set_robust_list(0x5555571745e0, 24 [pid 5110] <... futex resumed>) = 0 [pid 5106] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5121] <... set_robust_list resumed>) = 0 [pid 5110] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5106] exit_group(0) = ? [pid 5110] <... futex resumed>) = ? [pid 5110] +++ exited with 0 +++ [pid 5106] +++ exited with 0 +++ [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5106, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=15 /* 0.15 s */} --- [pid 5121] chdir("./2") = 0 [pid 5121] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5075] umount2("./1", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5121] <... prctl resumed>) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5121] setpgid(0, 0 [pid 5075] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5121] <... setpgid resumed>) = 0 [pid 5121] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5075] <... openat resumed>) = 3 [pid 5121] <... openat resumed>) = 3 [pid 5075] fstat(3, [pid 5121] write(3, "1000", 4 [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5121] <... write resumed>) = 4 [pid 5075] getdents64(3, [pid 5121] close(3 [pid 5075] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5121] <... close resumed>) = 0 [pid 5121] symlink("/dev/binderfs", "./binderfs" [pid 5075] umount2("./1/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5121] <... symlink resumed>) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5121] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5075] lstat("./1/binderfs", [pid 5121] <... futex resumed>) = 0 [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] unlink("./1/binderfs") = 0 [pid 5121] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5075] umount2("./1/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5121] <... mmap resumed>) = 0x7fdb72913000 [pid 5121] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5121] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5122], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5122 [pid 5121] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5121] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5077] <... umount2 resumed>) = 0 [pid 5118] <... mount resumed>) = 0 [pid 5077] umount2("./1/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5118] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5118] <... openat resumed>) = 3 [pid 5077] lstat("./1/file0", [pid 5118] chdir("./file0") = 0 [pid 5077] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5118] ioctl(4, LOOP_CLR_FD [pid 5077] umount2("./1/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5118] <... ioctl resumed>) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5118] close(4 [pid 5077] openat(AT_FDCWD, "./1/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5118] <... close resumed>) = 0 [pid 5077] <... openat resumed>) = 4 [pid 5118] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] fstat(4, [pid 5118] <... futex resumed>) = 1 [pid 5114] <... futex resumed>) = 0 [pid 5118] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5114] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5114] <... futex resumed>) = 0 [pid 5114] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5118] <... open resumed>) = 4 [pid 5077] getdents64(4, [ 61.809237][ T5118] REISERFS (device loop2): Using r5 hash to sort names [ 61.841049][ T5118] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 5118] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5114] <... futex resumed>) = 0 [pid 5077] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5118] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5114] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] getdents64(4, [pid 5118] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5114] <... futex resumed>) = 0 [pid 5114] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5118] ioctl(4, FS_IOC_GETVERSION [pid 5077] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5118] <... ioctl resumed>, 0x20000080) = 0 ./strace-static-x86_64: Process 5122 attached [pid 5118] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] close(4 [pid 5074] <... umount2 resumed>) = 0 [pid 5122] set_robust_list(0x7fdb729339e0, 24 [pid 5118] <... futex resumed>) = 1 [pid 5114] <... futex resumed>) = 0 [pid 5122] <... set_robust_list resumed>) = 0 [pid 5118] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5114] exit_group(0 [pid 5077] <... close resumed>) = 0 [pid 5074] umount2("./1/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5122] memfd_create("syzkaller", 0 [pid 5118] <... futex resumed>) = ? [pid 5114] <... exit_group resumed>) = ? [pid 5077] rmdir("./1/file0" [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5122] <... memfd_create resumed>) = 3 [pid 5118] +++ exited with 0 +++ [pid 5114] +++ exited with 0 +++ [pid 5077] <... rmdir resumed>) = 0 [pid 5122] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5114, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=17 /* 0.17 s */} --- [pid 5074] lstat("./1/file0", [pid 5077] getdents64(3, [pid 5122] <... mmap resumed>) = 0x7fdb6a513000 [pid 5077] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5074] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] <... umount2 resumed>) = 0 [pid 5077] close(3 [pid 5074] umount2("./1/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... close resumed>) = 0 [pid 5076] umount2("./1", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] rmdir("./1" [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... rmdir resumed>) = 0 [pid 5074] openat(AT_FDCWD, "./1/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] mkdir("./2", 0777 [pid 5076] <... openat resumed>) = 3 [pid 5074] <... openat resumed>) = 4 [pid 5077] <... mkdir resumed>) = 0 [pid 5076] fstat(3, [pid 5074] fstat(4, [pid 5077] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] getdents64(3, [pid 5077] <... openat resumed>) = 3 [pid 5076] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5074] getdents64(4, [pid 5077] ioctl(3, LOOP_CLR_FD [pid 5076] umount2("./1/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5074] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] close(3 [pid 5076] lstat("./1/binderfs", [pid 5074] getdents64(4, [pid 5077] <... close resumed>) = 0 [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] unlink("./1/binderfs" [pid 5074] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5074] close(4 [pid 5077] <... clone resumed>, child_tidptr=0x5555571745d0) = 5123 [pid 5076] <... unlink resumed>) = 0 [pid 5076] umount2("./1/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] <... close resumed>) = 0 [pid 5074] rmdir("./1/file0") = 0 [pid 5074] getdents64(3, [pid 5079] umount2("./1/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 5123 attached [pid 5079] lstat("./1/file0", [pid 5074] close(3 [pid 5123] set_robust_list(0x5555571745e0, 24 [pid 5079] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] <... close resumed>) = 0 [pid 5123] <... set_robust_list resumed>) = 0 [pid 5079] umount2("./1/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] rmdir("./1" [pid 5123] chdir("./2" [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5123] <... chdir resumed>) = 0 [pid 5122] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5079] openat(AT_FDCWD, "./1/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5074] <... rmdir resumed>) = 0 [pid 5123] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5079] <... openat resumed>) = 4 [pid 5074] mkdir("./2", 0777 [pid 5123] setpgid(0, 0 [pid 5079] fstat(4, [pid 5123] <... setpgid resumed>) = 0 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] <... mkdir resumed>) = 0 [pid 5123] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5079] getdents64(4, [pid 5074] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5123] <... openat resumed>) = 3 [pid 5123] write(3, "1000", 4 [pid 5079] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5074] <... openat resumed>) = 3 [pid 5123] <... write resumed>) = 4 [pid 5079] getdents64(4, [pid 5074] ioctl(3, LOOP_CLR_FD [pid 5123] close(3 [pid 5079] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5074] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5123] <... close resumed>) = 0 [pid 5079] close(4 [pid 5074] close(3 [pid 5123] symlink("/dev/binderfs", "./binderfs" [pid 5079] <... close resumed>) = 0 [pid 5074] <... close resumed>) = 0 [pid 5123] <... symlink resumed>) = 0 [pid 5079] rmdir("./1/file0" [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5123] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] <... rmdir resumed>) = 0 [pid 5123] <... futex resumed>) = 0 [pid 5079] getdents64(3, ./strace-static-x86_64: Process 5124 attached [pid 5123] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5079] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5074] <... clone resumed>, child_tidptr=0x5555571745d0) = 5124 [pid 5123] <... mmap resumed>) = 0x7fdb72913000 [pid 5079] close(3 [pid 5123] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5079] <... close resumed>) = 0 [pid 5124] set_robust_list(0x5555571745e0, 24) = 0 [pid 5123] <... mprotect resumed>) = 0 [pid 5079] rmdir("./1" [pid 5123] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5124] chdir("./2" [pid 5079] <... rmdir resumed>) = 0 [pid 5124] <... chdir resumed>) = 0 [pid 5123] <... clone resumed>, parent_tid=[5125], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5125 [pid 5079] mkdir("./2", 0777 [pid 5124] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5123] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5124] <... prctl resumed>) = 0 [pid 5123] <... futex resumed>) = 0 [pid 5079] <... mkdir resumed>) = 0 [pid 5124] setpgid(0, 0 [pid 5123] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5079] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5124] <... setpgid resumed>) = 0 [pid 5079] <... openat resumed>) = 3 [pid 5124] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5079] ioctl(3, LOOP_CLR_FD [pid 5124] <... openat resumed>) = 3 [pid 5079] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5124] write(3, "1000", 4 [pid 5079] close(3./strace-static-x86_64: Process 5125 attached [pid 5124] <... write resumed>) = 4 [pid 5079] <... close resumed>) = 0 [pid 5125] set_robust_list(0x7fdb729339e0, 24 [pid 5124] close(3 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5125] <... set_robust_list resumed>) = 0 [pid 5124] <... close resumed>) = 0 [pid 5125] memfd_create("syzkaller", 0 [pid 5124] symlink("/dev/binderfs", "./binderfs" [pid 5125] <... memfd_create resumed>) = 3 [pid 5124] <... symlink resumed>) = 0 [pid 5079] <... clone resumed>, child_tidptr=0x5555571745d0) = 5126 ./strace-static-x86_64: Process 5126 attached [pid 5125] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5124] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5126] set_robust_list(0x5555571745e0, 24 [pid 5125] <... mmap resumed>) = 0x7fdb6a513000 [pid 5124] <... futex resumed>) = 0 [pid 5126] <... set_robust_list resumed>) = 0 [pid 5124] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5122] <... write resumed>) = 4194304 [pid 5126] chdir("./2" [pid 5124] <... mmap resumed>) = 0x7fdb72913000 [pid 5126] <... chdir resumed>) = 0 [pid 5124] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5126] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5124] <... mprotect resumed>) = 0 [pid 5126] <... prctl resumed>) = 0 [pid 5124] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5126] setpgid(0, 0) = 0 [pid 5126] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5124] <... clone resumed>, parent_tid=[5127], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5127 [pid 5126] <... openat resumed>) = 3 [pid 5124] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5126] write(3, "1000", 4 [pid 5124] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5126] <... write resumed>) = 4 [pid 5126] close(3./strace-static-x86_64: Process 5127 attached ) = 0 [pid 5127] set_robust_list(0x7fdb729339e0, 24 [pid 5126] symlink("/dev/binderfs", "./binderfs" [pid 5127] <... set_robust_list resumed>) = 0 [pid 5126] <... symlink resumed>) = 0 [pid 5126] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5126] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5126] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5127] memfd_create("syzkaller", 0 [pid 5126] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5127] <... memfd_create resumed>) = 3 ./strace-static-x86_64: Process 5128 attached [pid 5128] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5128] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5127] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5126] <... clone resumed>, parent_tid=[5128], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5128 [pid 5127] <... mmap resumed>) = 0x7fdb6a513000 [pid 5126] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5128] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5126] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5128] memfd_create("syzkaller", 0) = 3 [pid 5128] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5122] munmap(0x7fdb6a513000, 4194304 [pid 5128] <... mmap resumed>) = 0x7fdb6a513000 [pid 5122] <... munmap resumed>) = 0 [pid 5122] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5122] ioctl(4, LOOP_SET_FD, 3 [pid 5075] <... umount2 resumed>) = 0 [pid 5075] umount2("./1/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5075] lstat("./1/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] umount2("./1/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5122] <... ioctl resumed>) = 0 [pid 5075] openat(AT_FDCWD, "./1/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5122] close(3) = 0 [pid 5122] mkdir("./file0", 0777 [pid 5075] <... openat resumed>) = 4 [pid 5122] <... mkdir resumed>) = 0 [pid 5122] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5075] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5075] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5075] close(4 [pid 5127] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5075] <... close resumed>) = 0 [pid 5125] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5075] rmdir("./1/file0") = 0 [pid 5075] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5075] close(3) = 0 [pid 5075] rmdir("./1" [pid 5076] <... umount2 resumed>) = 0 [pid 5076] umount2("./1/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5076] lstat("./1/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] umount2("./1/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5076] openat(AT_FDCWD, "./1/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5076] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5076] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5075] <... rmdir resumed>) = 0 [pid 5076] close(4 [pid 5075] mkdir("./2", 0777 [pid 5076] <... close resumed>) = 0 [ 62.125104][ T5122] loop4: detected capacity change from 0 to 8192 [ 62.152036][ T5122] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5076] rmdir("./1/file0" [pid 5075] <... mkdir resumed>) = 0 [pid 5075] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5076] <... rmdir resumed>) = 0 [pid 5076] getdents64(3, [pid 5075] <... openat resumed>) = 3 [pid 5128] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5076] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5075] ioctl(3, LOOP_CLR_FD [pid 5076] close(3 [pid 5075] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5076] <... close resumed>) = 0 [pid 5075] close(3 [pid 5076] rmdir("./1" [pid 5075] <... close resumed>) = 0 [pid 5076] <... rmdir resumed>) = 0 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5130 [pid 5076] mkdir("./2", 0777) = 0 [pid 5076] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5076] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5076] close(3) = 0 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5130 attached , child_tidptr=0x5555571745d0) = 5131 [pid 5130] set_robust_list(0x5555571745e0, 24) = 0 [pid 5130] chdir("./2") = 0 [pid 5130] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 5131 attached ) = 0 [pid 5130] setpgid(0, 0 [pid 5131] set_robust_list(0x5555571745e0, 24 [pid 5130] <... setpgid resumed>) = 0 [pid 5131] <... set_robust_list resumed>) = 0 [pid 5131] chdir("./2" [pid 5130] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5131] <... chdir resumed>) = 0 [pid 5131] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5130] <... openat resumed>) = 3 [pid 5131] <... prctl resumed>) = 0 [pid 5130] write(3, "1000", 4 [pid 5131] setpgid(0, 0 [pid 5130] <... write resumed>) = 4 [pid 5131] <... setpgid resumed>) = 0 [pid 5130] close(3 [pid 5131] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5130] <... close resumed>) = 0 [pid 5131] <... openat resumed>) = 3 [pid 5130] symlink("/dev/binderfs", "./binderfs" [pid 5131] write(3, "1000", 4) = 4 [pid 5130] <... symlink resumed>) = 0 [pid 5131] close(3 [ 62.210484][ T5122] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 62.241035][ T5122] REISERFS (device loop4): using ordered data mode [pid 5130] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5131] <... close resumed>) = 0 [pid 5130] <... futex resumed>) = 0 [pid 5131] symlink("/dev/binderfs", "./binderfs" [pid 5130] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5131] <... symlink resumed>) = 0 [pid 5130] <... mmap resumed>) = 0x7fdb72913000 [pid 5127] <... write resumed>) = 4194304 [pid 5131] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5130] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5127] munmap(0x7fdb6a513000, 4194304 [pid 5131] <... futex resumed>) = 0 [pid 5130] <... mprotect resumed>) = 0 [pid 5131] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5130] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5131] <... mmap resumed>) = 0x7fdb72913000 [pid 5127] <... munmap resumed>) = 0 [pid 5131] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5130] <... clone resumed>, parent_tid=[5132], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5132 [pid 5127] openat(AT_FDCWD, "/dev/loop0", O_RDWR./strace-static-x86_64: Process 5132 attached [pid 5131] <... mprotect resumed>) = 0 [pid 5130] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5127] <... openat resumed>) = 4 [pid 5132] set_robust_list(0x7fdb729339e0, 24 [pid 5131] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5130] <... futex resumed>) = 0 [pid 5127] ioctl(4, LOOP_SET_FD, 3 [pid 5132] <... set_robust_list resumed>) = 0 [ 62.279650][ T5122] reiserfs: using flush barriers [pid 5130] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5131] <... clone resumed>, parent_tid=[5133], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5133 [pid 5131] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5131] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5133 attached [pid 5132] memfd_create("syzkaller", 0 [pid 5128] <... write resumed>) = 4194304 [pid 5127] <... ioctl resumed>) = 0 [pid 5125] <... write resumed>) = 4194304 [pid 5133] set_robust_list(0x7fdb729339e0, 24 [pid 5132] <... memfd_create resumed>) = 3 [pid 5128] munmap(0x7fdb6a513000, 4194304 [pid 5127] close(3 [pid 5133] <... set_robust_list resumed>) = 0 [pid 5132] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5128] <... munmap resumed>) = 0 [pid 5127] <... close resumed>) = 0 [pid 5133] memfd_create("syzkaller", 0 [pid 5132] <... mmap resumed>) = 0x7fdb6a513000 [pid 5128] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5127] mkdir("./file0", 0777 [pid 5133] <... memfd_create resumed>) = 3 [pid 5128] <... openat resumed>) = 4 [pid 5127] <... mkdir resumed>) = 0 [pid 5133] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5128] ioctl(4, LOOP_SET_FD, 3 [pid 5127] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5133] <... mmap resumed>) = 0x7fdb6a513000 [pid 5125] munmap(0x7fdb6a513000, 4194304) = 0 [pid 5125] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 5125] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5125] close(3) = 0 [pid 5125] mkdir("./file0", 0777) = 0 [ 62.306921][ T5127] loop0: detected capacity change from 0 to 8192 [ 62.310876][ T5122] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 62.337383][ T5128] loop5: detected capacity change from 0 to 8192 [ 62.338253][ T5125] loop3: detected capacity change from 0 to 8192 [pid 5125] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5128] <... ioctl resumed>) = 0 [pid 5128] close(3) = 0 [pid 5128] mkdir("./file0", 0777) = 0 [ 62.354806][ T5127] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 62.364520][ T5122] REISERFS (device loop4): checking transaction log (loop4) [ 62.377160][ T5125] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 62.392260][ T5128] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5128] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5132] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [ 62.398645][ T5125] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 62.418046][ T5127] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [pid 5133] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5132] <... write resumed>) = 4194304 [pid 5132] munmap(0x7fdb6a513000, 4194304) = 0 [pid 5132] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [ 62.456988][ T5128] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 62.474475][ T5125] REISERFS (device loop3): using ordered data mode [ 62.481716][ T5127] REISERFS (device loop0): using ordered data mode [pid 5132] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5132] close(3) = 0 [pid 5132] mkdir("./file0", 0777) = 0 [ 62.505542][ T5132] loop1: detected capacity change from 0 to 8192 [ 62.506917][ T5125] reiserfs: using flush barriers [ 62.519886][ T5127] reiserfs: using flush barriers [ 62.527530][ T5128] REISERFS (device loop5): using ordered data mode [ 62.528757][ T5122] REISERFS (device loop4): Using r5 hash to sort names [ 62.541883][ T5127] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 62.542584][ T5122] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 62.564727][ T5128] reiserfs: using flush barriers [ 62.573832][ T5132] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 62.587295][ T5132] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 62.596965][ T5125] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 62.597078][ T5132] REISERFS (device loop1): using ordered data mode [ 62.613655][ T5128] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 62.620045][ T5132] reiserfs: using flush barriers [pid 5132] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5133] <... write resumed>) = 4194304 [pid 5133] munmap(0x7fdb6a513000, 4194304) = 0 [pid 5133] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5133] ioctl(4, LOOP_SET_FD, 3 [pid 5122] <... mount resumed>) = 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 [ 62.642786][ T5132] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 62.659985][ T5132] REISERFS (device loop1): checking transaction log (loop1) [ 62.660525][ T5127] REISERFS (device loop0): checking transaction log (loop0) [ 62.691108][ T5125] REISERFS (device loop3): checking transaction log (loop3) [ 62.700766][ T5133] loop2: detected capacity change from 0 to 8192 [pid 5122] close(4 [pid 5133] <... ioctl resumed>) = 0 [pid 5122] <... close resumed>) = 0 [pid 5133] close(3 [pid 5122] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5133] <... close resumed>) = 0 [pid 5122] <... futex resumed>) = 1 [pid 5121] <... futex resumed>) = 0 [pid 5133] mkdir("./file0", 0777 [pid 5122] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5121] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5133] <... mkdir resumed>) = 0 [pid 5122] <... open resumed>) = 4 [pid 5121] <... futex resumed>) = 0 [pid 5133] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5122] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5121] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5122] <... futex resumed>) = 0 [pid 5121] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5122] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5121] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5122] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5121] <... futex resumed>) = 0 [pid 5122] ioctl(4, FS_IOC_GETVERSION [pid 5121] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5122] <... ioctl resumed>, 0x20000080) = 0 [pid 5122] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5121] <... futex resumed>) = 0 [pid 5122] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5121] exit_group(0 [pid 5122] <... futex resumed>) = ? [pid 5121] <... exit_group resumed>) = ? [pid 5122] +++ exited with 0 +++ [pid 5121] +++ exited with 0 +++ [pid 5078] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5121, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} --- [ 62.731368][ T5128] REISERFS (device loop5): checking transaction log (loop5) [ 62.767553][ T5133] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5078] umount2("./2", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5078] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5078] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5078] umount2("./2/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5078] lstat("./2/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5078] unlink("./2/binderfs") = 0 [ 62.788150][ T5132] REISERFS (device loop1): Using r5 hash to sort names [pid 5078] umount2("./2/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5132] <... mount resumed>) = 0 [pid 5132] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5132] chdir("./file0") = 0 [ 62.832880][ T5132] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 62.840405][ T5133] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 62.860006][ T5133] REISERFS (device loop2): using ordered data mode [ 62.867583][ T5125] REISERFS (device loop3): Using r5 hash to sort names [pid 5132] ioctl(4, LOOP_CLR_FD) = 0 [pid 5132] close(4) = 0 [pid 5125] <... mount resumed>) = 0 [pid 5132] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5125] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5132] <... futex resumed>) = 1 [pid 5130] <... futex resumed>) = 0 [pid 5125] <... openat resumed>) = 3 [pid 5132] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5130] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5125] chdir("./file0" [pid 5130] <... futex resumed>) = 0 [pid 5125] <... chdir resumed>) = 0 [pid 5130] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5125] ioctl(4, LOOP_CLR_FD [pid 5132] <... open resumed>) = 4 [pid 5125] <... ioctl resumed>) = 0 [pid 5125] close(4) = 0 [pid 5132] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5125] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5132] <... futex resumed>) = 1 [pid 5130] <... futex resumed>) = 0 [pid 5125] <... futex resumed>) = 1 [pid 5123] <... futex resumed>) = 0 [pid 5132] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5130] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5125] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5123] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5132] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5130] <... futex resumed>) = 0 [pid 5125] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5123] <... futex resumed>) = 0 [pid 5132] ioctl(4, FS_IOC_GETVERSION [pid 5130] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5125] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5123] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5132] <... ioctl resumed>, 0x20000080) = 0 [pid 5125] <... open resumed>) = 4 [pid 5132] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5125] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5132] <... futex resumed>) = 1 [pid 5130] <... futex resumed>) = 0 [pid 5125] <... futex resumed>) = 1 [pid 5123] <... futex resumed>) = 0 [pid 5132] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5130] exit_group(0 [pid 5125] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5123] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5132] <... futex resumed>) = ? [pid 5130] <... exit_group resumed>) = ? [ 62.875974][ T5125] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 62.900769][ T5133] reiserfs: using flush barriers [pid 5125] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5123] <... futex resumed>) = 0 [pid 5132] +++ exited with 0 +++ [pid 5130] +++ exited with 0 +++ [pid 5125] ioctl(4, FS_IOC_GETVERSION [pid 5123] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5125] <... ioctl resumed>, 0x20000080) = 0 [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5130, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=20 /* 0.20 s */} --- [pid 5125] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5123] <... futex resumed>) = 0 [pid 5125] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5123] exit_group(0 [pid 5125] <... futex resumed>) = ? [pid 5123] <... exit_group resumed>) = ? [pid 5125] +++ exited with 0 +++ [pid 5123] +++ exited with 0 +++ [pid 5075] umount2("./2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5123, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=14 /* 0.14 s */} --- [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5077] umount2("./2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] fstat(3, [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] <... openat resumed>) = 3 [pid 5075] getdents64(3, [pid 5077] fstat(3, [pid 5075] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5077] umount2("./2/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] lstat("./2/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] unlink("./2/binderfs") = 0 [pid 5077] umount2("./2/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] umount2("./2/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5075] lstat("./2/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] unlink("./2/binderfs") = 0 [ 62.955283][ T5133] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 63.029793][ T5127] REISERFS (device loop0): Using r5 hash to sort names [ 63.039327][ T5128] REISERFS (device loop5): Using r5 hash to sort names [ 63.056618][ T5128] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 63.057993][ T5127] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5075] umount2("./2/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5078] <... umount2 resumed>) = 0 [pid 5078] umount2("./2/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5078] lstat("./2/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] umount2("./2/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5078] openat(AT_FDCWD, "./2/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5078] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5078] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5078] close(4) = 0 [pid 5078] rmdir("./2/file0") = 0 [pid 5078] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5078] close(3) = 0 [pid 5078] rmdir("./2") = 0 [pid 5078] mkdir("./3", 0777) = 0 [pid 5078] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5078] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5078] close(3) = 0 [ 63.068982][ T5133] REISERFS (device loop2): checking transaction log (loop2) [pid 5078] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5139 [pid 5127] <... mount resumed>) = 0 ./strace-static-x86_64: Process 5139 attached [pid 5127] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5139] set_robust_list(0x5555571745e0, 24) = 0 [pid 5128] <... mount resumed>) = 0 [pid 5127] <... openat resumed>) = 3 [pid 5139] chdir("./3" [pid 5128] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5127] chdir("./file0" [pid 5139] <... chdir resumed>) = 0 [pid 5128] <... openat resumed>) = 3 [pid 5127] <... chdir resumed>) = 0 [pid 5139] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5128] chdir("./file0" [pid 5127] ioctl(4, LOOP_CLR_FD [pid 5139] <... prctl resumed>) = 0 [pid 5128] <... chdir resumed>) = 0 [pid 5127] <... ioctl resumed>) = 0 [pid 5139] setpgid(0, 0 [pid 5128] ioctl(4, LOOP_CLR_FD [pid 5127] close(4 [pid 5139] <... setpgid resumed>) = 0 [pid 5128] <... ioctl resumed>) = 0 [pid 5127] <... close resumed>) = 0 [pid 5139] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5128] close(4 [pid 5127] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5139] <... openat resumed>) = 3 [pid 5128] <... close resumed>) = 0 [pid 5127] <... futex resumed>) = 1 [pid 5124] <... futex resumed>) = 0 [pid 5139] write(3, "1000", 4 [pid 5128] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5127] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5124] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5139] <... write resumed>) = 4 [pid 5128] <... futex resumed>) = 1 [pid 5127] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5126] <... futex resumed>) = 0 [pid 5124] <... futex resumed>) = 0 [pid 5075] <... umount2 resumed>) = 0 [pid 5139] close(3 [pid 5128] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5127] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5126] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5124] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5139] <... close resumed>) = 0 [pid 5128] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5127] <... open resumed>) = 4 [pid 5126] <... futex resumed>) = 0 [pid 5075] umount2("./2/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5139] symlink("/dev/binderfs", "./binderfs" [pid 5128] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5127] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5126] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5139] <... symlink resumed>) = 0 [pid 5128] <... open resumed>) = 4 [pid 5127] <... futex resumed>) = 1 [pid 5124] <... futex resumed>) = 0 [pid 5075] lstat("./2/file0", [pid 5139] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5128] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5127] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5124] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5075] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5139] <... futex resumed>) = 0 [pid 5128] <... futex resumed>) = 1 [pid 5127] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5126] <... futex resumed>) = 0 [pid 5124] <... futex resumed>) = 0 [pid 5077] <... umount2 resumed>) = 0 [pid 5075] umount2("./2/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5139] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5128] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5127] ioctl(4, FS_IOC_GETVERSION [pid 5126] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5124] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5139] <... mmap resumed>) = 0x7fdb72913000 [pid 5128] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5127] <... ioctl resumed>, 0x20000080) = 0 [pid 5126] <... futex resumed>) = 0 [pid 5075] openat(AT_FDCWD, "./2/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5139] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5128] ioctl(4, FS_IOC_GETVERSION [pid 5127] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5126] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5075] <... openat resumed>) = 4 [pid 5139] <... mprotect resumed>) = 0 [pid 5128] <... ioctl resumed>, 0x20000080) = 0 [pid 5127] <... futex resumed>) = 1 [pid 5124] <... futex resumed>) = 0 [pid 5077] umount2("./2/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] fstat(4, [pid 5139] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5128] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5127] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5124] exit_group(0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5128] <... futex resumed>) = 1 [pid 5127] <... futex resumed>) = ? [pid 5126] <... futex resumed>) = 0 [pid 5124] <... exit_group resumed>) = ? [pid 5077] lstat("./2/file0", [pid 5075] getdents64(4, ./strace-static-x86_64: Process 5140 attached [pid 5139] <... clone resumed>, parent_tid=[5140], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5140 [pid 5128] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5127] +++ exited with 0 +++ [pid 5126] exit_group(0 [pid 5124] +++ exited with 0 +++ [pid 5077] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5140] set_robust_list(0x7fdb729339e0, 24 [pid 5139] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5128] <... futex resumed>) = ? [pid 5126] <... exit_group resumed>) = ? [pid 5077] umount2("./2/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5140] <... set_robust_list resumed>) = 0 [pid 5139] <... futex resumed>) = 0 [pid 5128] +++ exited with 0 +++ [pid 5126] +++ exited with 0 +++ [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] getdents64(4, [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5124, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=19 /* 0.19 s */} --- [pid 5140] memfd_create("syzkaller", 0 [pid 5139] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5077] openat(AT_FDCWD, "./2/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5074] umount2("./2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5140] <... memfd_create resumed>) = 3 [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5126, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=23 /* 0.23 s */} --- [pid 5077] <... openat resumed>) = 4 [pid 5075] close(4 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5140] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5079] umount2("./2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] fstat(4, [pid 5075] <... close resumed>) = 0 [pid 5074] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5140] <... mmap resumed>) = 0x7fdb6a513000 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] rmdir("./2/file0" [pid 5074] <... openat resumed>) = 3 [pid 5079] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] getdents64(4, [pid 5074] fstat(3, [pid 5079] <... openat resumed>) = 3 [pid 5077] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] fstat(3, [pid 5077] getdents64(4, [pid 5074] getdents64(3, [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5074] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5079] getdents64(3, [pid 5077] close(4 [pid 5075] <... rmdir resumed>) = 0 [pid 5074] umount2("./2/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5077] <... close resumed>) = 0 [pid 5075] getdents64(3, [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] umount2("./2/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] rmdir("./2/file0" [pid 5075] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5074] lstat("./2/binderfs", [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... rmdir resumed>) = 0 [pid 5075] close(3 [pid 5074] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] lstat("./2/binderfs", [pid 5077] getdents64(3, [pid 5075] <... close resumed>) = 0 [pid 5074] unlink("./2/binderfs" [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5075] rmdir("./2" [pid 5074] <... unlink resumed>) = 0 [pid 5079] unlink("./2/binderfs" [pid 5077] close(3 [pid 5074] umount2("./2/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... unlink resumed>) = 0 [pid 5077] <... close resumed>) = 0 [pid 5075] <... rmdir resumed>) = 0 [pid 5079] umount2("./2/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] rmdir("./2") = 0 [pid 5075] mkdir("./3", 0777 [pid 5077] mkdir("./3", 0777) = 0 [pid 5077] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5075] <... mkdir resumed>) = 0 [pid 5077] <... openat resumed>) = 3 [pid 5075] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5077] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5075] <... openat resumed>) = 3 [pid 5077] close(3 [pid 5075] ioctl(3, LOOP_CLR_FD [pid 5077] <... close resumed>) = 0 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5141 [pid 5075] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5075] close(3) = 0 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5142 ./strace-static-x86_64: Process 5141 attached [pid 5141] set_robust_list(0x5555571745e0, 24) = 0 [pid 5141] chdir("./3") = 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./strace-static-x86_64: Process 5142 attached ) = 0 [pid 5141] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5142] set_robust_list(0x5555571745e0, 24 [pid 5141] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5140] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5142] <... set_robust_list resumed>) = 0 [pid 5141] <... futex resumed>) = 0 [pid 5142] chdir("./3" [pid 5141] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5142] <... chdir resumed>) = 0 [pid 5141] <... mmap resumed>) = 0x7fdb72913000 [pid 5142] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5141] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5142] <... prctl resumed>) = 0 [pid 5141] <... mprotect resumed>) = 0 [pid 5142] setpgid(0, 0 [pid 5141] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5142] <... setpgid resumed>) = 0 ./strace-static-x86_64: Process 5143 attached [pid 5142] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5141] <... clone resumed>, parent_tid=[5143], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5143 [pid 5143] set_robust_list(0x7fdb729339e0, 24 [pid 5142] <... openat resumed>) = 3 [pid 5141] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5143] <... set_robust_list resumed>) = 0 [pid 5142] write(3, "1000", 4 [pid 5141] <... futex resumed>) = 0 [pid 5143] memfd_create("syzkaller", 0 [pid 5142] <... write resumed>) = 4 [pid 5141] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5143] <... memfd_create resumed>) = 3 [pid 5142] close(3) = 0 [pid 5143] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5142] symlink("/dev/binderfs", "./binderfs" [pid 5143] <... mmap resumed>) = 0x7fdb6a513000 [pid 5142] <... symlink resumed>) = 0 [pid 5142] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5142] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5142] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5142] clone(child_stack=0x7fdb729333f0, 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=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5144 [pid 5142] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5142] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5144 attached [pid 5144] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5144] memfd_create("syzkaller", 0) = 3 [pid 5144] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [pid 5140] <... write resumed>) = 4194304 [pid 5140] munmap(0x7fdb6a513000, 4194304) = 0 [pid 5140] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5140] ioctl(4, LOOP_SET_FD, 3 [ 63.358186][ T5133] REISERFS (device loop2): Using r5 hash to sort names [ 63.384600][ T5133] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 5133] <... mount resumed>) = 0 [pid 5143] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5133] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5133] chdir("./file0") = 0 [pid 5133] ioctl(4, LOOP_CLR_FD) = 0 [pid 5133] close(4) = 0 [pid 5133] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5131] <... futex resumed>) = 0 [pid 5133] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5131] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5133] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5131] <... futex resumed>) = 0 [pid 5144] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5140] <... ioctl resumed>) = 0 [pid 5133] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5131] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5140] close(3 [pid 5133] <... open resumed>) = 4 [pid 5140] <... close resumed>) = 0 [pid 5133] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5140] mkdir("./file0", 0777 [pid 5133] <... futex resumed>) = 1 [pid 5131] <... futex resumed>) = 0 [pid 5140] <... mkdir resumed>) = 0 [pid 5133] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5131] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5140] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5133] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5131] <... futex resumed>) = 0 [pid 5133] ioctl(4, FS_IOC_GETVERSION [pid 5131] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5133] <... ioctl resumed>, 0x20000080) = 0 [ 63.437596][ T5140] loop4: detected capacity change from 0 to 8192 [pid 5133] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5131] <... futex resumed>) = 0 [pid 5133] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5079] <... umount2 resumed>) = 0 [pid 5074] <... umount2 resumed>) = 0 [pid 5079] umount2("./2/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] lstat("./2/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] umount2("./2/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./2/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5079] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] getdents64(4, [pid 5131] exit_group(0 [pid 5079] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5133] <... futex resumed>) = ? [pid 5131] <... exit_group resumed>) = ? [pid 5079] getdents64(4, [pid 5074] umount2("./2/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5133] +++ exited with 0 +++ [pid 5079] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5131] +++ exited with 0 +++ [pid 5079] close(4 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... close resumed>) = 0 [pid 5079] rmdir("./2/file0" [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5131, si_uid=0, si_status=0, si_utime=0, si_stime=24 /* 0.24 s */} --- [pid 5074] lstat("./2/file0", [pid 5079] <... rmdir resumed>) = 0 [pid 5076] umount2("./2", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] getdents64(3, [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5076] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5074] umount2("./2/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] close(3 [pid 5076] <... openat resumed>) = 3 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... close resumed>) = 0 [pid 5076] fstat(3, [pid 5074] openat(AT_FDCWD, "./2/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] rmdir("./2" [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] <... openat resumed>) = 4 [pid 5079] <... rmdir resumed>) = 0 [pid 5076] getdents64(3, [pid 5074] fstat(4, [pid 5079] mkdir("./3", 0777 [pid 5076] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] <... mkdir resumed>) = 0 [pid 5076] umount2("./2/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] getdents64(4, [pid 5079] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5079] <... openat resumed>) = 3 [pid 5076] lstat("./2/binderfs", [pid 5074] getdents64(4, [pid 5079] ioctl(3, LOOP_CLR_FD [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5074] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5143] <... write resumed>) = 4194304 [pid 5079] <... ioctl resumed>) = -1 ENXIO (No such device or address) [ 63.496424][ T5140] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 63.534915][ T5140] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [pid 5076] unlink("./2/binderfs" [pid 5074] close(4 [pid 5079] close(3 [pid 5076] <... unlink resumed>) = 0 [pid 5074] <... close resumed>) = 0 [pid 5144] <... write resumed>) = 4194304 [pid 5079] <... close resumed>) = 0 [pid 5076] umount2("./2/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] rmdir("./2/file0" [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5074] <... rmdir resumed>) = 0 [pid 5144] munmap(0x7fdb6a513000, 4194304 [pid 5074] getdents64(3, [pid 5079] <... clone resumed>, child_tidptr=0x5555571745d0) = 5146 [pid 5074] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5074] close(3) = 0 [pid 5074] rmdir("./2") = 0 [pid 5074] mkdir("./3", 0777) = 0 [pid 5074] openat(AT_FDCWD, "/dev/loop0", O_RDWR./strace-static-x86_64: Process 5146 attached [pid 5144] <... munmap resumed>) = 0 [pid 5143] munmap(0x7fdb6a513000, 4194304 [pid 5074] <... openat resumed>) = 3 [pid 5146] set_robust_list(0x5555571745e0, 24 [pid 5143] <... munmap resumed>) = 0 [pid 5074] ioctl(3, LOOP_CLR_FD [pid 5146] <... set_robust_list resumed>) = 0 [pid 5144] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5143] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5074] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5146] chdir("./3" [pid 5144] <... openat resumed>) = 4 [pid 5143] <... openat resumed>) = 4 [ 63.562237][ T5140] REISERFS (device loop4): using ordered data mode [ 63.569376][ T5140] reiserfs: using flush barriers [ 63.576463][ T5140] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 63.602306][ T5140] REISERFS (device loop4): checking transaction log (loop4) [pid 5074] close(3 [pid 5146] <... chdir resumed>) = 0 [pid 5144] ioctl(4, LOOP_SET_FD, 3 [pid 5143] ioctl(4, LOOP_SET_FD, 3 [pid 5074] <... close resumed>) = 0 [pid 5146] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5144] <... ioctl resumed>) = 0 [pid 5144] close(3) = 0 [pid 5144] mkdir("./file0", 0777) = 0 [pid 5144] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5146] <... prctl resumed>) = 0 [pid 5143] <... ioctl resumed>) = 0 [pid 5146] setpgid(0, 0 [pid 5143] close(3 [pid 5074] <... clone resumed>, child_tidptr=0x5555571745d0) = 5148 [pid 5146] <... setpgid resumed>) = 0 [pid 5146] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5143] <... close resumed>) = 0 [pid 5146] <... openat resumed>) = 3 [pid 5143] mkdir("./file0", 0777 [pid 5146] write(3, "1000", 4 [pid 5143] <... mkdir resumed>) = 0 [pid 5146] <... write resumed>) = 4 [pid 5143] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC, ""./strace-static-x86_64: Process 5148 attached [pid 5146] close(3 [pid 5148] set_robust_list(0x5555571745e0, 24 [pid 5146] <... close resumed>) = 0 [pid 5148] <... set_robust_list resumed>) = 0 [pid 5146] symlink("/dev/binderfs", "./binderfs" [pid 5148] chdir("./3" [pid 5146] <... symlink resumed>) = 0 [ 63.620741][ T5144] loop1: detected capacity change from 0 to 8192 [ 63.620829][ T5143] loop3: detected capacity change from 0 to 8192 [ 63.638640][ T5144] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5148] <... chdir resumed>) = 0 [pid 5146] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5148] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5146] <... futex resumed>) = 0 [pid 5148] <... prctl resumed>) = 0 [pid 5146] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5148] setpgid(0, 0 [pid 5146] <... mmap resumed>) = 0x7fdb72913000 [pid 5148] <... setpgid resumed>) = 0 [pid 5146] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5148] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5146] <... mprotect resumed>) = 0 [pid 5148] <... openat resumed>) = 3 [pid 5146] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5148] write(3, "1000", 4) = 4 [pid 5146] <... clone resumed>, parent_tid=[5150], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5150 ./strace-static-x86_64: Process 5150 attached [pid 5148] close(3 [pid 5146] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5150] set_robust_list(0x7fdb729339e0, 24 [pid 5148] <... close resumed>) = 0 [pid 5146] <... futex resumed>) = 0 [pid 5150] <... set_robust_list resumed>) = 0 [pid 5148] symlink("/dev/binderfs", "./binderfs" [pid 5146] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5150] memfd_create("syzkaller", 0 [pid 5148] <... symlink resumed>) = 0 [pid 5150] <... memfd_create resumed>) = 3 [pid 5148] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5150] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5148] <... futex resumed>) = 0 [pid 5150] <... mmap resumed>) = 0x7fdb6a513000 [pid 5148] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5148] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5148] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5151], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5151 [ 63.684592][ T5143] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5148] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5076] <... umount2 resumed>) = 0 [pid 5148] <... futex resumed>) = 0 [pid 5076] umount2("./2/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5148] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5151 attached [pid 5076] lstat("./2/file0", [pid 5151] set_robust_list(0x7fdb729339e0, 24 [pid 5076] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5151] <... set_robust_list resumed>) = 0 [pid 5076] umount2("./2/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5151] memfd_create("syzkaller", 0 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5151] <... memfd_create resumed>) = 3 [pid 5076] openat(AT_FDCWD, "./2/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5151] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5076] <... openat resumed>) = 4 [pid 5151] <... mmap resumed>) = 0x7fdb6a513000 [ 63.738961][ T5144] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 63.741850][ T5143] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 63.750669][ T5140] REISERFS (device loop4): Using r5 hash to sort names [ 63.757761][ T5143] REISERFS (device loop3): using ordered data mode [ 63.771729][ T5143] reiserfs: using flush barriers [pid 5076] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5076] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5076] close(4) = 0 [pid 5076] rmdir("./2/file0") = 0 [pid 5076] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5076] close(3) = 0 [pid 5076] rmdir("./2") = 0 [pid 5076] mkdir("./3", 0777) = 0 [pid 5076] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5076] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5076] close(3) = 0 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5152 attached [pid 5152] set_robust_list(0x5555571745e0, 24) = 0 [pid 5152] chdir("./3") = 0 [pid 5152] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5152] setpgid(0, 0) = 0 [pid 5152] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5152] write(3, "1000", 4) = 4 [pid 5152] close(3) = 0 [pid 5152] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5152] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5076] <... clone resumed>, child_tidptr=0x5555571745d0) = 5152 [ 63.778885][ T5143] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 63.796195][ T5143] REISERFS (device loop3): checking transaction log (loop3) [ 63.803435][ T5144] REISERFS (device loop1): using ordered data mode [ 63.823695][ T5144] reiserfs: using flush barriers [pid 5152] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [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"..., 4194304 [pid 5152] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5152] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5153], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5153 [pid 5152] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5152] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5153 attached [pid 5153] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5153] memfd_create("syzkaller", 0) = 3 [pid 5153] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [pid 5151] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5140] <... mount resumed>) = 0 [pid 5140] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5140] chdir("./file0") = 0 [pid 5140] ioctl(4, LOOP_CLR_FD) = 0 [ 63.857298][ T5140] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 63.888458][ T5144] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5140] close(4) = 0 [pid 5140] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5139] <... futex resumed>) = 0 [pid 5139] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5140] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5139] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5140] <... open resumed>) = 4 [pid 5140] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5139] <... futex resumed>) = 0 [pid 5140] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5139] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5139] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5140] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5140] ioctl(4, FS_IOC_GETVERSION, 0x20000080) = 0 [pid 5140] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5139] <... futex resumed>) = 0 [pid 5139] exit_group(0) = ? [pid 5140] +++ exited with 0 +++ [pid 5139] +++ exited with 0 +++ [pid 5078] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5139, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 5078] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5153] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5078] umount2("./3", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5078] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5078] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5078] umount2("./3/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5078] lstat("./3/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5078] unlink("./3/binderfs") = 0 [ 63.952146][ T5144] REISERFS (device loop1): checking transaction log (loop1) [ 63.979517][ T5143] REISERFS (device loop3): Using r5 hash to sort names [pid 5078] umount2("./3/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5150] <... write resumed>) = 4194304 [pid 5150] munmap(0x7fdb6a513000, 4194304) = 0 [pid 5150] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 5150] ioctl(4, LOOP_SET_FD, 3 [pid 5143] <... mount resumed>) = 0 [pid 5143] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5150] <... ioctl resumed>) = 0 [pid 5150] close(3 [pid 5143] <... openat resumed>) = 3 [pid 5150] <... close resumed>) = 0 [pid 5150] mkdir("./file0", 0777 [pid 5143] chdir("./file0") = 0 [pid 5143] ioctl(4, LOOP_CLR_FD) = 0 [pid 5143] close(4 [pid 5151] <... write resumed>) = 4194304 [pid 5143] <... close resumed>) = 0 [ 64.008252][ T5143] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 64.042896][ T5150] loop5: detected capacity change from 0 to 8192 [pid 5143] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5153] <... write resumed>) = 4194304 [pid 5151] munmap(0x7fdb6a513000, 4194304 [pid 5143] <... futex resumed>) = 1 [pid 5141] <... futex resumed>) = 0 [pid 5153] munmap(0x7fdb6a513000, 4194304 [pid 5151] <... munmap resumed>) = 0 [pid 5143] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5141] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5153] <... munmap resumed>) = 0 [pid 5151] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5150] <... mkdir resumed>) = 0 [pid 5143] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5141] <... futex resumed>) = 0 [pid 5153] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5151] <... openat resumed>) = 4 [pid 5150] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5143] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5141] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5153] <... openat resumed>) = 4 [pid 5151] ioctl(4, LOOP_SET_FD, 3 [pid 5143] <... open resumed>) = 4 [pid 5153] ioctl(4, LOOP_SET_FD, 3 [pid 5151] <... ioctl resumed>) = 0 [pid 5143] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5141] <... futex resumed>) = 0 [pid 5141] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5143] ioctl(4, FS_IOC_GETVERSION [pid 5141] <... futex resumed>) = 0 [pid 5141] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5143] <... ioctl resumed>, 0x20000080) = 0 [pid 5143] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5141] <... futex resumed>) = 0 [pid 5143] <... futex resumed>) = 1 [pid 5141] exit_group(0 [pid 5143] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5141] <... exit_group resumed>) = ? [pid 5151] close(3 [pid 5143] <... futex resumed>) = ? [pid 5143] +++ exited with 0 +++ [pid 5141] +++ exited with 0 +++ [pid 5151] <... close resumed>) = 0 [pid 5151] mkdir("./file0", 0777 [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5141, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=18 /* 0.18 s */} --- [pid 5077] umount2("./3", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5077] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] getdents64(3, [pid 5151] <... mkdir resumed>) = 0 [pid 5077] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5077] umount2("./3/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] lstat("./3/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [ 64.126537][ T5151] loop0: detected capacity change from 0 to 8192 [ 64.128052][ T5150] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 64.134013][ T5153] loop2: detected capacity change from 0 to 8192 [ 64.148673][ T5150] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [pid 5077] unlink("./3/binderfs" [pid 5151] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5077] <... unlink resumed>) = 0 [pid 5077] umount2("./3/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5153] <... ioctl resumed>) = 0 [pid 5153] close(3 [pid 5078] <... umount2 resumed>) = 0 [pid 5153] <... close resumed>) = 0 [pid 5078] umount2("./3/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5153] mkdir("./file0", 0777 [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5153] <... mkdir resumed>) = 0 [pid 5078] lstat("./3/file0", [pid 5153] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5078] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] umount2("./3/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5078] openat(AT_FDCWD, "./3/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5078] fstat(4, [pid 5144] <... mount resumed>) = 0 [pid 5078] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5144] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5078] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5078] close(4) = 0 [pid 5144] <... openat resumed>) = 3 [ 64.185656][ T5144] REISERFS (device loop1): Using r5 hash to sort names [ 64.196767][ T5150] REISERFS (device loop5): using ordered data mode [ 64.200779][ T5151] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 64.205692][ T5150] reiserfs: using flush barriers [ 64.225656][ T5144] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [pid 5144] chdir("./file0" [pid 5078] rmdir("./3/file0" [pid 5144] <... chdir resumed>) = 0 [pid 5078] <... rmdir resumed>) = 0 [pid 5144] ioctl(4, LOOP_CLR_FD) = 0 [pid 5144] close(4) = 0 [pid 5144] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5142] <... futex resumed>) = 0 [pid 5144] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5142] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5144] <... open resumed>) = 4 [pid 5142] <... futex resumed>) = 0 [pid 5144] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5142] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5144] <... futex resumed>) = 0 [pid 5142] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5144] ioctl(4, FS_IOC_GETVERSION [pid 5142] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5144] <... ioctl resumed>, 0x20000080) = 0 [pid 5142] <... futex resumed>) = 0 [pid 5144] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5142] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5144] <... futex resumed>) = 0 [pid 5142] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5144] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5142] exit_group(0 [pid 5144] <... futex resumed>) = ? [pid 5142] <... exit_group resumed>) = ? [pid 5144] +++ exited with 0 +++ [pid 5142] +++ exited with 0 +++ [pid 5078] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5142, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} --- [pid 5078] close(3) = 0 [pid 5075] umount2("./3", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5078] rmdir("./3" [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5078] <... rmdir resumed>) = 0 [pid 5075] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5078] mkdir("./4", 0777 [pid 5075] <... openat resumed>) = 3 [pid 5078] <... mkdir resumed>) = 0 [pid 5075] fstat(3, [pid 5078] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] <... openat resumed>) = 3 [pid 5075] getdents64(3, [pid 5078] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5075] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5078] close(3 [pid 5075] umount2("./3/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5078] <... close resumed>) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5078] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] lstat("./3/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5078] <... clone resumed>, child_tidptr=0x5555571745d0) = 5157 [ 64.246904][ T5150] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 64.249557][ T5153] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 64.282047][ T5151] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [pid 5075] unlink("./3/binderfs") = 0 [pid 5075] umount2("./3/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5157 attached [pid 5157] set_robust_list(0x5555571745e0, 24) = 0 [pid 5157] chdir("./4") = 0 [pid 5157] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5077] <... umount2 resumed>) = 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(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5157] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5077] umount2("./3/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5157] <... mmap resumed>) = 0x7fdb72913000 [pid 5157] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5157] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 64.336458][ T5151] REISERFS (device loop0): using ordered data mode [ 64.346382][ T5151] reiserfs: using flush barriers [ 64.353015][ T5150] REISERFS (device loop5): checking transaction log (loop5) [ 64.362530][ T5151] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5077] lstat("./3/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] umount2("./3/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] openat(AT_FDCWD, "./3/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5077] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5077] getdents64(4, [pid 5157] <... clone resumed>, parent_tid=[5158], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5158 [pid 5077] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 5158 attached [pid 5157] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] close(4 [pid 5158] set_robust_list(0x7fdb729339e0, 24 [pid 5157] <... futex resumed>) = 0 [pid 5077] <... close resumed>) = 0 [pid 5158] <... set_robust_list resumed>) = 0 [pid 5157] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5077] rmdir("./3/file0" [pid 5158] memfd_create("syzkaller", 0 [pid 5077] <... rmdir resumed>) = 0 [pid 5158] <... memfd_create resumed>) = 3 [pid 5077] getdents64(3, [pid 5158] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5077] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5158] <... mmap resumed>) = 0x7fdb6a513000 [pid 5077] close(3) = 0 [pid 5077] rmdir("./3") = 0 [pid 5077] mkdir("./4", 0777) = 0 [pid 5077] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5077] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [ 64.368422][ T5153] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 64.388401][ T5153] REISERFS (device loop2): using ordered data mode [ 64.395557][ T5153] reiserfs: using flush barriers [ 64.403036][ T5153] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 64.423208][ T5153] REISERFS (device loop2): checking transaction log (loop2) [pid 5077] close(3) = 0 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5159 ./strace-static-x86_64: Process 5159 attached [pid 5159] set_robust_list(0x5555571745e0, 24) = 0 [pid 5159] chdir("./4") = 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(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5159] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5159] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5159] clone(child_stack=0x7fdb729333f0, 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 5160 attached , parent_tid=[5160], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5160 [pid 5159] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5160] set_robust_list(0x7fdb729339e0, 24 [pid 5159] <... futex resumed>) = 0 [pid 5160] <... set_robust_list resumed>) = 0 [pid 5159] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5160] memfd_create("syzkaller", 0) = 3 [pid 5160] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [ 64.530347][ T5151] REISERFS (device loop0): checking transaction log (loop0) [ 64.559255][ T5153] REISERFS (device loop2): Using r5 hash to sort names [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"..., 4194304 [pid 5075] <... umount2 resumed>) = 0 [pid 5160] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5153] <... mount resumed>) = 0 [pid 5153] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5153] chdir("./file0") = 0 [pid 5153] ioctl(4, LOOP_CLR_FD) = 0 [pid 5153] close(4) = 0 [ 64.591158][ T5153] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 5153] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5075] umount2("./3/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5153] <... futex resumed>) = 1 [pid 5152] <... futex resumed>) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] lstat("./3/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] umount2("./3/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5075] openat(AT_FDCWD, "./3/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5075] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5152] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5075] getdents64(4, [pid 5153] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5152] <... futex resumed>) = 0 [pid 5075] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5075] close(4) = 0 [pid 5075] rmdir("./3/file0") = 0 [pid 5075] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5075] close(3) = 0 [pid 5152] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5075] rmdir("./3" [pid 5153] <... open resumed>) = 4 [pid 5075] <... rmdir resumed>) = 0 [pid 5153] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5075] mkdir("./4", 0777 [pid 5153] <... futex resumed>) = 1 [pid 5152] <... futex resumed>) = 0 [pid 5075] <... mkdir resumed>) = 0 [pid 5075] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5075] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5075] close(3 [pid 5153] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5152] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5075] <... close resumed>) = 0 [pid 5153] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5153] ioctl(4, FS_IOC_GETVERSION [pid 5152] <... futex resumed>) = 0 [pid 5153] <... ioctl resumed>, 0x20000080) = 0 [pid 5152] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5075] <... clone resumed>, child_tidptr=0x5555571745d0) = 5161 [pid 5153] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5152] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) ./strace-static-x86_64: Process 5161 attached [pid 5153] <... futex resumed>) = 0 [pid 5152] exit_group(0 [pid 5161] set_robust_list(0x5555571745e0, 24 [pid 5152] <... exit_group resumed>) = ? [pid 5150] <... mount resumed>) = 0 [pid 5161] <... set_robust_list resumed>) = 0 [pid 5153] +++ exited with 0 +++ [pid 5161] chdir("./4") = 0 [pid 5152] +++ exited with 0 +++ [pid 5150] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5161] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5150] <... openat resumed>) = 3 [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5152, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=19 /* 0.19 s */} --- [pid 5161] <... prctl resumed>) = 0 [pid 5150] chdir("./file0" [pid 5161] setpgid(0, 0 [pid 5150] <... chdir resumed>) = 0 [pid 5161] <... setpgid resumed>) = 0 [pid 5160] <... write resumed>) = 4194304 [pid 5150] ioctl(4, LOOP_CLR_FD [pid 5160] munmap(0x7fdb6a513000, 4194304 [pid 5150] <... ioctl resumed>) = 0 [pid 5161] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5160] <... munmap resumed>) = 0 [ 64.674221][ T5150] REISERFS (device loop5): Using r5 hash to sort names [ 64.694745][ T5150] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 5150] close(4 [pid 5161] <... openat resumed>) = 3 [pid 5160] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5158] <... write resumed>) = 4194304 [pid 5150] <... close resumed>) = 0 [pid 5076] umount2("./3", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5161] write(3, "1000", 4 [pid 5160] <... openat resumed>) = 4 [pid 5150] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5161] <... write resumed>) = 4 [pid 5160] ioctl(4, LOOP_SET_FD, 3 [pid 5158] munmap(0x7fdb6a513000, 4194304 [pid 5150] <... futex resumed>) = 1 [pid 5146] <... futex resumed>) = 0 [pid 5161] close(3 [pid 5150] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5146] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5076] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5150] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5146] <... futex resumed>) = 0 [pid 5150] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5146] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5161] <... close resumed>) = 0 [pid 5158] <... munmap resumed>) = 0 [pid 5150] <... open resumed>) = 4 [pid 5076] <... openat resumed>) = 3 [pid 5150] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5146] <... futex resumed>) = 0 [pid 5150] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5146] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5161] symlink("/dev/binderfs", "./binderfs" [pid 5150] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5146] <... futex resumed>) = 0 [pid 5076] fstat(3, [pid 5161] <... symlink resumed>) = 0 [pid 5158] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5150] ioctl(4, FS_IOC_GETVERSION [pid 5146] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5150] <... ioctl resumed>, 0x20000080) = 0 [pid 5150] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5161] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5150] <... futex resumed>) = 1 [pid 5146] <... futex resumed>) = 0 [pid 5161] <... futex resumed>) = 0 [pid 5158] <... openat resumed>) = 4 [pid 5150] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5146] exit_group(0 [pid 5076] getdents64(3, [pid 5161] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5158] ioctl(4, LOOP_SET_FD, 3 [pid 5150] <... futex resumed>) = ? [pid 5146] <... exit_group resumed>) = ? [pid 5161] <... mmap resumed>) = 0x7fdb72913000 [pid 5160] <... ioctl resumed>) = 0 [pid 5150] +++ exited with 0 +++ [pid 5146] +++ exited with 0 +++ [pid 5076] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5160] close(3) = 0 [pid 5160] mkdir("./file0", 0777) = 0 [pid 5160] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5146, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 5076] umount2("./3/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5161] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5161] <... mprotect resumed>) = 0 [pid 5076] lstat("./3/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5161] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5079] umount2("./3", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] unlink("./3/binderfs" [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... unlink resumed>) = 0 [pid 5079] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY./strace-static-x86_64: Process 5163 attached [pid 5163] set_robust_list(0x7fdb729339e0, 24 [pid 5079] <... openat resumed>) = 3 [pid 5161] <... clone resumed>, parent_tid=[5163], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5163 [pid 5076] umount2("./3/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5161] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] fstat(3, [pid 5163] <... set_robust_list resumed>) = 0 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5163] memfd_create("syzkaller", 0 [pid 5079] getdents64(3, [pid 5161] <... futex resumed>) = 0 [pid 5163] <... memfd_create resumed>) = 3 [pid 5163] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [pid 5079] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5161] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [ 64.761122][ T5160] loop3: detected capacity change from 0 to 8192 [ 64.787315][ T5158] loop4: detected capacity change from 0 to 8192 [pid 5079] umount2("./3/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5158] <... ioctl resumed>) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] lstat("./3/binderfs", [pid 5158] close(3 [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5158] <... close resumed>) = 0 [pid 5158] mkdir("./file0", 0777 [pid 5079] unlink("./3/binderfs" [pid 5158] <... mkdir resumed>) = 0 [pid 5079] <... unlink resumed>) = 0 [pid 5079] umount2("./3/file0", MNT_DETACH|UMOUNT_NOFOLLOW [ 64.807519][ T5151] REISERFS (device loop0): Using r5 hash to sort names [ 64.817375][ T5160] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 64.831424][ T5160] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 64.834909][ T5151] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 64.841694][ T5160] REISERFS (device loop3): using ordered data mode [pid 5158] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5076] <... umount2 resumed>) = 0 [pid 5076] umount2("./3/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5076] lstat("./3/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] umount2("./3/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5076] openat(AT_FDCWD, "./3/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5151] <... mount resumed>) = 0 [pid 5076] <... openat resumed>) = 4 [ 64.867067][ T5158] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 64.886242][ T5160] reiserfs: using flush barriers [ 64.894586][ T5160] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5151] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5076] fstat(4, [pid 5151] <... openat resumed>) = 3 [pid 5151] chdir("./file0" [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5151] <... chdir resumed>) = 0 [pid 5076] getdents64(4, [pid 5151] ioctl(4, LOOP_CLR_FD [pid 5076] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5151] <... ioctl resumed>) = 0 [pid 5076] getdents64(4, [pid 5151] close(4 [pid 5076] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5151] <... close resumed>) = 0 [pid 5151] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5076] close(4 [pid 5151] <... futex resumed>) = 1 [pid 5148] <... futex resumed>) = 0 [pid 5076] <... close resumed>) = 0 [pid 5151] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5148] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5076] rmdir("./3/file0" [pid 5151] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5148] <... futex resumed>) = 0 [pid 5151] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5148] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5076] <... rmdir resumed>) = 0 [pid 5151] <... open resumed>) = 4 [pid 5076] getdents64(3, [pid 5151] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5076] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5151] <... futex resumed>) = 1 [pid 5148] <... futex resumed>) = 0 [ 64.933802][ T5160] REISERFS (device loop3): checking transaction log (loop3) [ 64.946860][ T5158] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [pid 5076] close(3 [pid 5151] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5148] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5076] <... close resumed>) = 0 [pid 5151] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5148] <... futex resumed>) = 0 [pid 5076] rmdir("./3" [pid 5151] ioctl(4, FS_IOC_GETVERSION [pid 5148] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5163] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5151] <... ioctl resumed>, 0x20000080) = 0 [pid 5076] <... rmdir resumed>) = 0 [pid 5151] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5076] mkdir("./4", 0777 [pid 5151] <... futex resumed>) = 1 [pid 5148] <... futex resumed>) = 0 [pid 5079] <... umount2 resumed>) = 0 [pid 5076] <... mkdir resumed>) = 0 [pid 5151] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5148] exit_group(0 [pid 5076] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5151] <... futex resumed>) = ? [pid 5148] <... exit_group resumed>) = ? [pid 5079] umount2("./3/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... openat resumed>) = 3 [pid 5151] +++ exited with 0 +++ [pid 5148] +++ exited with 0 +++ [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] ioctl(3, LOOP_CLR_FD [pid 5079] lstat("./3/file0", [pid 5076] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5079] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] close(3 [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5148, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=18 /* 0.18 s */} --- [pid 5079] umount2("./3/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... close resumed>) = 0 [pid 5074] umount2("./3", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5074] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] getdents64(3, [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5074] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5079] openat(AT_FDCWD, "./3/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5074] umount2("./3/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... openat resumed>) = 4 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] fstat(4, [pid 5076] <... clone resumed>, child_tidptr=0x5555571745d0) = 5165 [pid 5074] lstat("./3/binderfs", [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] getdents64(4, [pid 5074] unlink("./3/binderfs" [pid 5079] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5074] <... unlink resumed>) = 0 [pid 5074] umount2("./3/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5079] close(4) = 0 [pid 5079] rmdir("./3/file0") = 0 [pid 5079] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5079] close(3) = 0 [pid 5079] rmdir("./3") = 0 [pid 5079] mkdir("./4", 0777./strace-static-x86_64: Process 5165 attached ) = 0 [pid 5165] set_robust_list(0x5555571745e0, 24 [pid 5079] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5165] <... set_robust_list resumed>) = 0 [pid 5079] <... openat resumed>) = 3 [pid 5165] chdir("./4" [pid 5079] ioctl(3, LOOP_CLR_FD [pid 5165] <... chdir resumed>) = 0 [pid 5079] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5165] prctl(PR_SET_PDEATHSIG, SIGKILL [ 65.024490][ T5158] REISERFS (device loop4): using ordered data mode [ 65.055646][ T5158] reiserfs: using flush barriers [pid 5079] close(3 [pid 5165] <... prctl resumed>) = 0 [pid 5079] <... close resumed>) = 0 [pid 5165] setpgid(0, 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5165] <... setpgid resumed>) = 0 [pid 5165] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5079] <... clone resumed>, child_tidptr=0x5555571745d0) = 5166 [pid 5165] write(3, "1000", 4) = 4 [pid 5165] close(3./strace-static-x86_64: Process 5166 attached ) = 0 [pid 5166] set_robust_list(0x5555571745e0, 24 [pid 5165] symlink("/dev/binderfs", "./binderfs" [pid 5166] <... set_robust_list resumed>) = 0 [pid 5165] <... symlink resumed>) = 0 [pid 5166] chdir("./4" [pid 5165] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5166] <... chdir resumed>) = 0 [pid 5165] <... futex resumed>) = 0 [pid 5166] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5165] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5166] <... prctl resumed>) = 0 [pid 5165] <... mmap resumed>) = 0x7fdb72913000 [pid 5166] setpgid(0, 0 [pid 5165] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5166] <... setpgid resumed>) = 0 [pid 5165] <... mprotect resumed>) = 0 [ 65.084839][ T5158] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5166] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5165] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5166] <... openat resumed>) = 3 [pid 5166] write(3, "1000", 4) = 4 [pid 5165] <... clone resumed>, parent_tid=[5167], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5167 ./strace-static-x86_64: Process 5167 attached [pid 5166] close(3 [pid 5165] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5167] set_robust_list(0x7fdb729339e0, 24 [pid 5166] <... close resumed>) = 0 [pid 5165] <... futex resumed>) = 0 [pid 5167] <... set_robust_list resumed>) = 0 [pid 5166] symlink("/dev/binderfs", "./binderfs" [pid 5165] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5166] <... symlink resumed>) = 0 [pid 5167] memfd_create("syzkaller", 0 [pid 5166] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5167] <... memfd_create resumed>) = 3 [pid 5166] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5167] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5166] <... mmap resumed>) = 0x7fdb72913000 [pid 5167] <... mmap resumed>) = 0x7fdb6a513000 [pid 5166] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5166] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5168], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5168 [pid 5074] <... umount2 resumed>) = 0 [pid 5166] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5160] <... mount resumed>) = 0 [pid 5074] umount2("./3/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5168 attached [pid 5166] <... futex resumed>) = 0 [pid 5160] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5168] set_robust_list(0x7fdb729339e0, 24 [ 65.137237][ T5160] REISERFS (device loop3): Using r5 hash to sort names [ 65.155326][ T5160] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [pid 5166] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5160] <... openat resumed>) = 3 [pid 5074] lstat("./3/file0", [pid 5168] <... set_robust_list resumed>) = 0 [pid 5167] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5163] <... write resumed>) = 4194304 [pid 5160] chdir("./file0" [pid 5074] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5168] memfd_create("syzkaller", 0 [pid 5163] munmap(0x7fdb6a513000, 4194304 [pid 5160] <... chdir resumed>) = 0 [pid 5074] umount2("./3/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5168] <... memfd_create resumed>) = 3 [pid 5163] <... munmap resumed>) = 0 [pid 5160] ioctl(4, LOOP_CLR_FD [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5168] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5163] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5160] <... ioctl resumed>) = 0 [pid 5074] openat(AT_FDCWD, "./3/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5168] <... mmap resumed>) = 0x7fdb6a513000 [pid 5163] <... openat resumed>) = 4 [pid 5160] close(4 [pid 5074] <... openat resumed>) = 4 [pid 5163] ioctl(4, LOOP_SET_FD, 3 [pid 5160] <... close resumed>) = 0 [ 65.194291][ T5158] REISERFS (device loop4): checking transaction log (loop4) [pid 5074] fstat(4, [pid 5163] <... ioctl resumed>) = 0 [pid 5160] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5163] close(3 [pid 5160] <... futex resumed>) = 1 [pid 5159] <... futex resumed>) = 0 [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5163] <... close resumed>) = 0 [pid 5160] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5159] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5074] getdents64(4, [pid 5167] <... write resumed>) = 4194304 [pid 5163] mkdir("./file0", 0777 [pid 5160] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5159] <... futex resumed>) = 0 [pid 5167] munmap(0x7fdb6a513000, 4194304 [pid 5168] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5163] <... mkdir resumed>) = 0 [pid 5160] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5159] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5074] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5167] <... munmap resumed>) = 0 [pid 5163] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5160] <... open resumed>) = 4 [pid 5074] getdents64(4, [pid 5167] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5160] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5074] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5167] <... openat resumed>) = 4 [pid 5160] <... futex resumed>) = 1 [pid 5159] <... futex resumed>) = 0 [ 65.244456][ T5163] loop1: detected capacity change from 0 to 8192 [pid 5074] close(4 [pid 5167] ioctl(4, LOOP_SET_FD, 3 [pid 5160] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5159] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5074] <... close resumed>) = 0 [pid 5167] <... ioctl resumed>) = 0 [pid 5160] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5159] <... futex resumed>) = 0 [pid 5074] rmdir("./3/file0" [pid 5159] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5074] <... rmdir resumed>) = 0 [pid 5160] ioctl(4, FS_IOC_GETVERSION, 0x20000080) = 0 [pid 5160] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5159] <... futex resumed>) = 0 [pid 5074] getdents64(3, [pid 5159] exit_group(0 [pid 5160] ???( [pid 5074] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5160] <... ??? resumed>) = ? [pid 5159] <... exit_group resumed>) = ? [pid 5074] close(3 [pid 5160] +++ exited with 0 +++ [pid 5159] +++ exited with 0 +++ [pid 5074] <... close resumed>) = 0 [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5159, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=16 /* 0.16 s */} --- [pid 5074] rmdir("./3" [pid 5077] umount2("./4", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] <... rmdir resumed>) = 0 [pid 5077] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5077] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5077] umount2("./4/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] lstat("./4/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] unlink("./4/binderfs") = 0 [pid 5077] umount2("./4/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] mkdir("./4", 0777) = 0 [pid 5074] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5074] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [ 65.286057][ T5167] loop2: detected capacity change from 0 to 8192 [ 65.296339][ T5163] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5167] close(3 [pid 5074] close(3) = 0 [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5170 [pid 5167] <... close resumed>) = 0 [ 65.333472][ T5163] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 65.344823][ T5163] REISERFS (device loop1): using ordered data mode [ 65.351563][ T5163] reiserfs: using flush barriers [ 65.360085][ T5163] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5167] mkdir("./file0", 0777) = 0 ./strace-static-x86_64: Process 5170 attached [pid 5168] <... write resumed>) = 4194304 [pid 5167] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5170] set_robust_list(0x5555571745e0, 24 [pid 5168] munmap(0x7fdb6a513000, 4194304 [pid 5170] <... set_robust_list resumed>) = 0 [pid 5168] <... munmap resumed>) = 0 [pid 5170] chdir("./4") = 0 [pid 5168] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5170] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5168] <... openat resumed>) = 4 [pid 5170] <... prctl resumed>) = 0 [pid 5168] ioctl(4, LOOP_SET_FD, 3 [ 65.387124][ T5158] REISERFS (device loop4): Using r5 hash to sort names [ 65.402617][ T5163] REISERFS (device loop1): checking transaction log (loop1) [ 65.420576][ T5168] loop5: detected capacity change from 0 to 8192 [pid 5170] setpgid(0, 0) = 0 [pid 5168] <... ioctl resumed>) = 0 [pid 5158] <... mount resumed>) = 0 [pid 5170] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5168] close(3 [pid 5158] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5170] <... openat resumed>) = 3 [pid 5168] <... close resumed>) = 0 [pid 5158] <... openat resumed>) = 3 [pid 5170] write(3, "1000", 4 [pid 5168] mkdir("./file0", 0777 [pid 5158] chdir("./file0" [pid 5168] <... mkdir resumed>) = 0 [pid 5170] <... write resumed>) = 4 [pid 5158] <... chdir resumed>) = 0 [pid 5168] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5170] close(3 [pid 5158] ioctl(4, LOOP_CLR_FD [pid 5170] <... close resumed>) = 0 [pid 5158] <... ioctl resumed>) = 0 [pid 5170] symlink("/dev/binderfs", "./binderfs" [pid 5158] close(4 [pid 5170] <... symlink resumed>) = 0 [pid 5158] <... close resumed>) = 0 [pid 5170] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5158] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5170] <... futex resumed>) = 0 [pid 5158] <... futex resumed>) = 1 [pid 5157] <... futex resumed>) = 0 [pid 5170] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5158] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5157] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5170] <... mmap resumed>) = 0x7fdb72913000 [pid 5157] <... futex resumed>) = 0 [pid 5170] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5158] <... open resumed>) = 4 [pid 5157] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5170] <... mprotect resumed>) = 0 [pid 5158] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5170] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5158] <... futex resumed>) = 1 [pid 5157] <... futex resumed>) = 0 [pid 5158] ioctl(4, FS_IOC_GETVERSION [ 65.431724][ T5158] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 65.443805][ T5167] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5157] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 5173 attached [pid 5170] <... clone resumed>, parent_tid=[5173], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5173 [pid 5158] <... ioctl resumed>, 0x20000080) = 0 [pid 5157] <... futex resumed>) = 0 [pid 5077] <... umount2 resumed>) = 0 [pid 5173] set_robust_list(0x7fdb729339e0, 24 [pid 5170] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5158] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5157] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5173] <... set_robust_list resumed>) = 0 [pid 5170] <... futex resumed>) = 0 [pid 5158] <... futex resumed>) = 0 [pid 5157] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [ 65.485381][ T5168] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 65.509467][ T5167] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 65.521336][ T5168] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [pid 5077] umount2("./4/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5173] memfd_create("syzkaller", 0 [pid 5170] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5158] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5157] exit_group(0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5173] <... memfd_create resumed>) = 3 [pid 5158] <... futex resumed>) = ? [pid 5157] <... exit_group resumed>) = ? [pid 5077] lstat("./4/file0", [pid 5173] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5158] +++ exited with 0 +++ [pid 5173] <... mmap resumed>) = 0x7fdb6a513000 [pid 5157] +++ exited with 0 +++ [pid 5077] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5157, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=14 /* 0.14 s */} --- [pid 5078] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5078] umount2("./4", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5078] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5078] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5078] umount2("./4/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5078] lstat("./4/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5078] unlink("./4/binderfs") = 0 [pid 5077] umount2("./4/file0", MNT_DETACH|UMOUNT_NOFOLLOW [ 65.532668][ T5167] REISERFS (device loop2): using ordered data mode [ 65.540252][ T5168] REISERFS (device loop5): using ordered data mode [ 65.550052][ T5167] reiserfs: using flush barriers [pid 5078] umount2("./4/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] openat(AT_FDCWD, "./4/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5173] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5077] <... openat resumed>) = 4 [pid 5077] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5077] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5077] close(4) = 0 [pid 5077] rmdir("./4/file0") = 0 [pid 5077] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5077] close(3) = 0 [pid 5077] rmdir("./4") = 0 [pid 5077] mkdir("./5", 0777) = 0 [pid 5077] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5077] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5077] close(3) = 0 [ 65.574567][ T5167] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 65.584147][ T5168] reiserfs: using flush barriers [ 65.600765][ T5167] REISERFS (device loop2): checking transaction log (loop2) [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5174 ./strace-static-x86_64: Process 5174 attached [pid 5174] set_robust_list(0x5555571745e0, 24) = 0 [pid 5174] chdir("./5") = 0 [pid 5174] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5174] setpgid(0, 0) = 0 [pid 5174] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5174] write(3, "1000", 4 [pid 5173] <... write resumed>) = 4194304 [pid 5174] <... write resumed>) = 4 [pid 5174] close(3) = 0 [ 65.660741][ T5168] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5174] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5173] munmap(0x7fdb6a513000, 4194304 [pid 5174] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5173] <... munmap resumed>) = 0 [pid 5174] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5173] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5174] <... mmap resumed>) = 0x7fdb72913000 [pid 5173] <... openat resumed>) = 4 [pid 5174] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [ 65.712391][ T5163] REISERFS (device loop1): Using r5 hash to sort names [ 65.715332][ T5168] REISERFS (device loop5): checking transaction log (loop5) [ 65.740655][ T5163] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [pid 5173] ioctl(4, LOOP_SET_FD, 3 [pid 5174] <... mprotect resumed>) = 0 [pid 5174] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5175], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5175 [pid 5174] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5174] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5175 attached [pid 5173] <... ioctl resumed>) = 0 [pid 5175] set_robust_list(0x7fdb729339e0, 24 [pid 5173] close(3 [pid 5175] <... set_robust_list resumed>) = 0 [pid 5173] <... close resumed>) = 0 [pid 5163] <... mount resumed>) = 0 [pid 5175] memfd_create("syzkaller", 0 [pid 5173] mkdir("./file0", 0777 [pid 5163] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5173] <... mkdir resumed>) = 0 [pid 5175] <... memfd_create resumed>) = 3 [pid 5175] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5173] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5175] <... mmap resumed>) = 0x7fdb6a513000 [pid 5163] <... openat resumed>) = 3 [pid 5078] <... umount2 resumed>) = 0 [pid 5078] umount2("./4/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5078] lstat("./4/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [ 65.758736][ T5173] loop0: detected capacity change from 0 to 8192 [pid 5078] umount2("./4/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5078] openat(AT_FDCWD, "./4/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5078] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5078] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5078] close(4) = 0 [pid 5078] rmdir("./4/file0") = 0 [pid 5078] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5078] close(3) = 0 [pid 5078] rmdir("./4") = 0 [pid 5078] mkdir("./5", 0777) = 0 [pid 5078] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5078] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5078] close(3 [pid 5163] chdir("./file0" [pid 5078] <... close resumed>) = 0 [pid 5078] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5163] <... chdir resumed>) = 0 [pid 5163] ioctl(4, LOOP_CLR_FD [pid 5078] <... clone resumed>, child_tidptr=0x5555571745d0) = 5177 [pid 5163] <... ioctl resumed>) = 0 [pid 5163] close(4) = 0 [pid 5163] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5161] <... futex resumed>) = 0 [pid 5161] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5161] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5163] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 5163] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5161] <... futex resumed>) = 0 ./strace-static-x86_64: Process 5177 attached [pid 5163] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5177] set_robust_list(0x5555571745e0, 24 [pid 5163] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [ 65.800069][ T5173] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5161] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5177] <... set_robust_list resumed>) = 0 [pid 5163] ioctl(4, FS_IOC_GETVERSION [pid 5177] chdir("./5" [pid 5163] <... ioctl resumed>, 0x20000080) = 0 [pid 5177] <... chdir resumed>) = 0 [pid 5163] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5177] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5163] <... futex resumed>) = 0 [pid 5177] <... prctl resumed>) = 0 [pid 5163] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5177] setpgid(0, 0) = 0 [pid 5163] <... futex resumed>) = 0 [pid 5161] <... futex resumed>) = 1 [pid 5177] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5163] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5177] <... openat resumed>) = 3 [pid 5161] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5177] write(3, "1000", 4 [pid 5161] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5161] exit_group(0 [pid 5177] <... write resumed>) = 4 [pid 5163] <... futex resumed>) = ? [pid 5161] <... exit_group resumed>) = ? [pid 5177] close(3 [pid 5163] +++ exited with 0 +++ [pid 5177] <... close resumed>) = 0 [pid 5161] +++ exited with 0 +++ [pid 5177] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5177] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5177] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [ 65.850083][ T5173] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 65.859698][ T5173] REISERFS (device loop0): using ordered data mode [ 65.867093][ T5173] reiserfs: using flush barriers [pid 5177] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5177] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5178], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5178 [pid 5177] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5177] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5178 attached [pid 5178] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5161, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} --- [pid 5075] umount2("./4", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5075] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5075] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5178] memfd_create("syzkaller", 0 [pid 5075] getdents64(3, [pid 5178] <... memfd_create resumed>) = 3 [pid 5075] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5075] umount2("./4/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5178] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5178] <... mmap resumed>) = 0x7fdb6a513000 [pid 5075] lstat("./4/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [ 65.886003][ T5173] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 65.895237][ T5167] REISERFS (device loop2): Using r5 hash to sort names [ 65.904073][ T5173] REISERFS (device loop0): checking transaction log (loop0) [pid 5075] unlink("./4/binderfs") = 0 [pid 5075] umount2("./4/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5175] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5173] <... mount resumed>) = 0 [pid 5173] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5167] <... mount resumed>) = 0 [pid 5173] chdir("./file0" [pid 5167] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5173] <... chdir resumed>) = 0 [pid 5167] <... openat resumed>) = 3 [pid 5173] ioctl(4, LOOP_CLR_FD [pid 5167] chdir("./file0" [pid 5173] <... ioctl resumed>) = 0 [pid 5167] <... chdir resumed>) = 0 [pid 5173] close(4 [pid 5167] ioctl(4, LOOP_CLR_FD [pid 5173] <... close resumed>) = 0 [pid 5173] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5167] <... ioctl resumed>) = 0 [pid 5173] <... futex resumed>) = 1 [pid 5170] <... futex resumed>) = 0 [pid 5167] close(4 [pid 5173] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5170] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5167] <... close resumed>) = 0 [pid 5173] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5170] <... futex resumed>) = 0 [pid 5167] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5173] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5170] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5167] <... futex resumed>) = 1 [pid 5165] <... futex resumed>) = 0 [pid 5173] <... open resumed>) = 4 [pid 5167] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5165] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5173] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5170] <... futex resumed>) = 0 [pid 5167] <... open resumed>) = 4 [pid 5165] <... futex resumed>) = 0 [pid 5173] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5170] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5167] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5170] <... futex resumed>) = 0 [pid 5167] <... futex resumed>) = 0 [pid 5173] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5170] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5167] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5165] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5173] ioctl(4, FS_IOC_GETVERSION [pid 5165] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5173] <... ioctl resumed>, 0x20000080) = 0 [pid 5165] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5173] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5167] <... futex resumed>) = 0 [pid 5165] <... futex resumed>) = 1 [pid 5173] <... futex resumed>) = 1 [pid 5170] <... futex resumed>) = 0 [pid 5167] ioctl(4, FS_IOC_GETVERSION [pid 5165] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5173] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [ 65.971192][ T5173] REISERFS (device loop0): Using r5 hash to sort names [ 65.981970][ T5173] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 65.992417][ T5167] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 5170] exit_group(0 [pid 5167] <... ioctl resumed>, 0x20000080) = 0 [pid 5178] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5173] <... futex resumed>) = ? [pid 5170] <... exit_group resumed>) = ? [pid 5167] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5173] +++ exited with 0 +++ [pid 5170] +++ exited with 0 +++ [pid 5167] <... futex resumed>) = 1 [pid 5165] <... futex resumed>) = 0 [pid 5167] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5165] exit_group(0) = ? [pid 5167] <... futex resumed>) = ? [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5170, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=18 /* 0.18 s */} --- [pid 5074] restart_syscall(<... resuming interrupted clone ...> [pid 5167] +++ exited with 0 +++ [pid 5165] +++ exited with 0 +++ [pid 5074] <... restart_syscall resumed>) = 0 [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5165, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 5076] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5074] umount2("./4", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] umount2("./4", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] <... openat resumed>) = 3 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] fstat(3, [pid 5076] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] <... openat resumed>) = 3 [pid 5074] getdents64(3, [pid 5076] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5076] getdents64(3, [pid 5074] umount2("./4/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] umount2("./4/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] lstat("./4/binderfs", [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] lstat("./4/binderfs", [pid 5074] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5074] unlink("./4/binderfs" [pid 5076] unlink("./4/binderfs") = 0 [pid 5074] <... unlink resumed>) = 0 [pid 5076] umount2("./4/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] umount2("./4/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5168] <... mount resumed>) = 0 [pid 5168] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5175] <... write resumed>) = 4194304 [ 66.096210][ T5168] REISERFS (device loop5): Using r5 hash to sort names [ 66.113208][ T5168] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 5175] munmap(0x7fdb6a513000, 4194304 [pid 5178] <... write resumed>) = 4194304 [pid 5175] <... munmap resumed>) = 0 [pid 5168] chdir("./file0") = 0 [pid 5168] ioctl(4, LOOP_CLR_FD) = 0 [pid 5168] close(4 [pid 5175] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5178] munmap(0x7fdb6a513000, 4194304 [pid 5175] <... openat resumed>) = 4 [pid 5175] ioctl(4, LOOP_SET_FD, 3 [pid 5168] <... close resumed>) = 0 [pid 5168] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5168] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5178] <... munmap resumed>) = 0 [pid 5175] <... ioctl resumed>) = 0 [pid 5166] <... futex resumed>) = 0 [pid 5178] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5175] close(3 [pid 5166] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5178] <... openat resumed>) = 4 [pid 5175] <... close resumed>) = 0 [pid 5168] <... futex resumed>) = 0 [pid 5166] <... futex resumed>) = 1 [pid 5178] ioctl(4, LOOP_SET_FD, 3 [pid 5175] mkdir("./file0", 0777 [pid 5168] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5166] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5075] <... umount2 resumed>) = 0 [pid 5168] <... open resumed>) = 4 [pid 5168] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5168] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5075] umount2("./4/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5075] lstat("./4/file0", [pid 5175] <... mkdir resumed>) = 0 [pid 5166] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5075] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5175] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5166] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5168] <... futex resumed>) = 0 [pid 5166] <... futex resumed>) = 1 [pid 5075] umount2("./4/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5168] ioctl(4, FS_IOC_GETVERSION [pid 5166] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5168] <... ioctl resumed>, 0x20000080) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5178] <... ioctl resumed>) = 0 [pid 5168] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5075] openat(AT_FDCWD, "./4/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5178] close(3 [pid 5168] <... futex resumed>) = 1 [pid 5166] <... futex resumed>) = 0 [ 66.202780][ T5175] loop3: detected capacity change from 0 to 8192 [ 66.222118][ T5178] loop4: detected capacity change from 0 to 8192 [pid 5075] <... openat resumed>) = 4 [pid 5168] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5166] exit_group(0 [pid 5075] fstat(4, [pid 5178] <... close resumed>) = 0 [pid 5168] <... futex resumed>) = ? [pid 5166] <... exit_group resumed>) = ? [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5178] mkdir("./file0", 0777 [pid 5168] +++ exited with 0 +++ [pid 5075] getdents64(4, [pid 5166] +++ exited with 0 +++ [pid 5075] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5178] <... mkdir resumed>) = 0 [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5166, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=14 /* 0.14 s */} --- [pid 5075] getdents64(4, [pid 5178] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5079] restart_syscall(<... resuming interrupted clone ...> [pid 5075] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5079] <... restart_syscall resumed>) = 0 [pid 5075] close(4) = 0 [pid 5075] rmdir("./4/file0" [pid 5079] umount2("./4", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... rmdir resumed>) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] getdents64(3, [pid 5079] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5079] <... openat resumed>) = 3 [pid 5075] close(3 [pid 5079] fstat(3, [pid 5075] <... close resumed>) = 0 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] rmdir("./4" [pid 5079] getdents64(3, [pid 5075] <... rmdir resumed>) = 0 [pid 5079] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5075] mkdir("./5", 0777 [pid 5079] umount2("./4/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... mkdir resumed>) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5079] lstat("./4/binderfs", [pid 5075] <... openat resumed>) = 3 [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] ioctl(3, LOOP_CLR_FD [pid 5079] unlink("./4/binderfs" [pid 5075] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5079] <... unlink resumed>) = 0 [pid 5075] close(3 [pid 5079] umount2("./4/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... close resumed>) = 0 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5181 [pid 5076] <... umount2 resumed>) = 0 [pid 5076] umount2("./4/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5076] lstat("./4/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] umount2("./4/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5076] openat(AT_FDCWD, "./4/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY./strace-static-x86_64: Process 5181 attached [pid 5181] set_robust_list(0x5555571745e0, 24) = 0 [ 66.251971][ T5175] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 66.286144][ T5178] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5181] chdir("./5" [pid 5076] <... openat resumed>) = 4 [pid 5076] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] getdents64(4, [pid 5181] <... chdir resumed>) = 0 [pid 5076] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5076] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5076] close(4) = 0 [pid 5181] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5076] rmdir("./4/file0" [pid 5074] <... umount2 resumed>) = 0 [pid 5076] <... rmdir resumed>) = 0 [pid 5181] <... prctl resumed>) = 0 [pid 5076] getdents64(3, [ 66.313899][ T5175] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 66.332771][ T5175] REISERFS (device loop3): using ordered data mode [ 66.340063][ T5175] reiserfs: using flush barriers [ 66.344368][ T5178] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [pid 5074] umount2("./4/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5181] setpgid(0, 0 [pid 5076] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5181] <... setpgid resumed>) = 0 [pid 5076] close(3 [pid 5074] lstat("./4/file0", [pid 5181] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5076] <... close resumed>) = 0 [pid 5181] <... openat resumed>) = 3 [pid 5076] rmdir("./4" [pid 5074] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] <... rmdir resumed>) = 0 [pid 5074] umount2("./4/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5181] write(3, "1000", 4 [pid 5076] mkdir("./5", 0777 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5181] <... write resumed>) = 4 [pid 5181] close(3 [pid 5076] <... mkdir resumed>) = 0 [pid 5074] openat(AT_FDCWD, "./4/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5181] <... close resumed>) = 0 [pid 5076] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5074] <... openat resumed>) = 4 [pid 5181] symlink("/dev/binderfs", "./binderfs" [pid 5076] <... openat resumed>) = 3 [pid 5181] <... symlink resumed>) = 0 [pid 5076] ioctl(3, LOOP_CLR_FD [ 66.351446][ T5175] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 66.355696][ T5178] REISERFS (device loop4): using ordered data mode [ 66.378369][ T5178] reiserfs: using flush barriers [ 66.389339][ T5175] REISERFS (device loop3): checking transaction log (loop3) [pid 5074] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5074] getdents64(4, [pid 5076] close(3 [pid 5181] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5076] <... close resumed>) = 0 [pid 5074] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5181] <... futex resumed>) = 0 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5074] getdents64(4, [pid 5181] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5074] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5181] <... mmap resumed>) = 0x7fdb72913000 [pid 5074] close(4 [pid 5181] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5074] <... close resumed>) = 0 [pid 5181] <... mprotect resumed>) = 0 [pid 5074] rmdir("./4/file0" [pid 5076] <... clone resumed>, child_tidptr=0x5555571745d0) = 5182 [pid 5074] <... rmdir resumed>) = 0 [ 66.400763][ T5178] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 ./strace-static-x86_64: Process 5182 attached [pid 5181] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5074] getdents64(3, [pid 5182] set_robust_list(0x5555571745e0, 24 [pid 5074] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5074] close(3 [pid 5182] <... set_robust_list resumed>) = 0 [pid 5074] <... close resumed>) = 0 [pid 5182] chdir("./5" [pid 5181] <... clone resumed>, parent_tid=[5183], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5183 [pid 5074] rmdir("./4") = 0 [pid 5181] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5182] <... chdir resumed>) = 0 [pid 5181] <... futex resumed>) = 0 [pid 5181] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5182] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5074] mkdir("./5", 0777 [pid 5182] setpgid(0, 0) = 0 [pid 5074] <... mkdir resumed>) = 0 [pid 5182] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5074] openat(AT_FDCWD, "/dev/loop0", O_RDWR./strace-static-x86_64: Process 5183 attached [pid 5183] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5183] memfd_create("syzkaller", 0 [pid 5182] <... openat resumed>) = 3 [pid 5074] <... openat resumed>) = 3 [pid 5183] <... memfd_create resumed>) = 3 [pid 5182] write(3, "1000", 4 [pid 5074] ioctl(3, LOOP_CLR_FD [pid 5183] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [pid 5182] <... write resumed>) = 4 [pid 5074] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5074] close(3 [pid 5182] close(3 [pid 5074] <... close resumed>) = 0 [pid 5079] <... umount2 resumed>) = 0 [pid 5079] umount2("./4/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] lstat("./4/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] umount2("./4/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./4/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5182] <... close resumed>) = 0 [pid 5079] <... openat resumed>) = 4 [pid 5182] symlink("/dev/binderfs", "./binderfs" [pid 5079] fstat(4, [pid 5182] <... symlink resumed>) = 0 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5182] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] getdents64(4, [pid 5074] <... clone resumed>, child_tidptr=0x5555571745d0) = 5184 [pid 5182] <... futex resumed>) = 0 [pid 5079] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5182] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5079] getdents64(4, ./strace-static-x86_64: Process 5184 attached [pid 5182] <... mmap resumed>) = 0x7fdb72913000 [pid 5079] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5184] set_robust_list(0x5555571745e0, 24 [pid 5182] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5079] close(4 [pid 5184] <... set_robust_list resumed>) = 0 [pid 5182] <... mprotect resumed>) = 0 [pid 5079] <... close resumed>) = 0 [pid 5184] chdir("./5" [pid 5079] rmdir("./4/file0" [pid 5184] <... chdir resumed>) = 0 [pid 5182] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5079] <... rmdir resumed>) = 0 [pid 5184] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5079] getdents64(3, [pid 5184] <... prctl resumed>) = 0 [pid 5079] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5184] setpgid(0, 0 [pid 5079] close(3 [pid 5184] <... setpgid resumed>) = 0 [pid 5079] <... close resumed>) = 0 [pid 5184] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5079] rmdir("./4" [pid 5184] <... openat resumed>) = 3 [pid 5079] <... rmdir resumed>) = 0 [pid 5184] write(3, "1000", 4 [pid 5079] mkdir("./5", 0777 [pid 5184] <... write resumed>) = 4 [ 66.450588][ T5178] REISERFS (device loop4): checking transaction log (loop4) [pid 5182] <... clone resumed>, parent_tid=[5185], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5185 [pid 5079] <... mkdir resumed>) = 0 [pid 5184] close(3 [pid 5182] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5184] <... close resumed>) = 0 [pid 5182] <... futex resumed>) = 0 [pid 5079] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5185 attached [pid 5184] symlink("/dev/binderfs", "./binderfs" [pid 5182] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5079] ioctl(3, LOOP_CLR_FD [pid 5185] set_robust_list(0x7fdb729339e0, 24 [pid 5184] <... symlink resumed>) = 0 [pid 5079] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5185] <... set_robust_list resumed>) = 0 [pid 5184] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] close(3 [pid 5185] memfd_create("syzkaller", 0 [pid 5184] <... futex resumed>) = 0 [pid 5079] <... close resumed>) = 0 [pid 5184] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5184] <... mmap resumed>) = 0x7fdb72913000 [pid 5185] <... memfd_create resumed>) = 3 [pid 5184] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5079] <... clone resumed>, child_tidptr=0x5555571745d0) = 5186 [pid 5184] <... mprotect resumed>) = 0 [pid 5184] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5185] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5184] <... clone resumed>, parent_tid=[5187], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5187 [pid 5184] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5185] <... mmap resumed>) = 0x7fdb6a513000 [pid 5184] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5186 attached [pid 5186] set_robust_list(0x5555571745e0, 24./strace-static-x86_64: Process 5187 attached [pid 5187] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5187] memfd_create("syzkaller", 0) = 3 [pid 5187] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [pid 5186] <... set_robust_list resumed>) = 0 [pid 5186] chdir("./5") = 0 [pid 5186] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5186] setpgid(0, 0) = 0 [pid 5186] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5186] write(3, "1000", 4) = 4 [pid 5186] close(3) = 0 [pid 5186] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5186] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5186] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5186] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5183] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5186] <... mprotect resumed>) = 0 [pid 5186] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5188], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5188 [pid 5186] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 5188 attached ) = 0 [pid 5188] set_robust_list(0x7fdb729339e0, 24 [pid 5186] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5188] <... set_robust_list resumed>) = 0 [pid 5188] memfd_create("syzkaller", 0) = 3 [pid 5188] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [pid 5185] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5188] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5187] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5185] <... write resumed>) = 4194304 [pid 5178] <... mount resumed>) = 0 [pid 5178] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5185] munmap(0x7fdb6a513000, 4194304 [pid 5178] <... openat resumed>) = 3 [pid 5178] chdir("./file0") = 0 [pid 5178] ioctl(4, LOOP_CLR_FD) = 0 [ 66.651588][ T5178] REISERFS (device loop4): Using r5 hash to sort names [ 66.660158][ T5175] REISERFS (device loop3): Using r5 hash to sort names [ 66.673545][ T5178] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 66.678351][ T5175] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [pid 5178] close(4) = 0 [pid 5178] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5177] <... futex resumed>) = 0 [pid 5177] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5178] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5177] <... futex resumed>) = 0 [pid 5177] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5178] <... open resumed>) = 4 [pid 5178] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5177] <... futex resumed>) = 0 [pid 5178] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 5177] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5178] ioctl(4, FS_IOC_GETVERSION [pid 5177] <... futex resumed>) = 0 [pid 5178] <... ioctl resumed>, 0x20000080) = 0 [pid 5177] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5178] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5177] <... futex resumed>) = 0 [pid 5177] exit_group(0 [pid 5178] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL) = ? [pid 5177] <... exit_group resumed>) = ? [pid 5178] +++ exited with 0 +++ [pid 5177] +++ exited with 0 +++ [pid 5078] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5177, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=20 /* 0.20 s */} --- [pid 5078] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5078] umount2("./5", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5078] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5185] <... munmap resumed>) = 0 [pid 5078] <... openat resumed>) = 3 [pid 5078] fstat(3, [pid 5185] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5078] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] getdents64(3, [pid 5185] <... openat resumed>) = 4 [pid 5078] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5185] ioctl(4, LOOP_SET_FD, 3 [pid 5078] umount2("./5/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5183] <... write resumed>) = 4194304 [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5183] munmap(0x7fdb6a513000, 4194304) = 0 [pid 5183] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5183] ioctl(4, LOOP_SET_FD, 3 [pid 5185] <... ioctl resumed>) = 0 [pid 5078] lstat("./5/binderfs", [pid 5185] close(3) = 0 [pid 5185] mkdir("./file0", 0777 [pid 5078] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5078] unlink("./5/binderfs" [pid 5185] <... mkdir resumed>) = 0 [pid 5078] <... unlink resumed>) = 0 [pid 5078] umount2("./5/file0", MNT_DETACH|UMOUNT_NOFOLLOW [ 66.755008][ T5185] loop2: detected capacity change from 0 to 8192 [ 66.758219][ T5183] loop1: detected capacity change from 0 to 8192 [ 66.790863][ T5185] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5185] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5183] <... ioctl resumed>) = 0 [pid 5183] close(3) = 0 [pid 5183] mkdir("./file0", 0777) = 0 [pid 5175] <... mount resumed>) = 0 [pid 5175] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5183] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5175] <... openat resumed>) = 3 [pid 5187] <... write resumed>) = 4194304 [pid 5175] chdir("./file0") = 0 [pid 5175] ioctl(4, LOOP_CLR_FD [pid 5188] <... write resumed>) = 4194304 [pid 5187] munmap(0x7fdb6a513000, 4194304 [ 66.804349][ T5185] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 66.814610][ T5185] REISERFS (device loop2): using ordered data mode [ 66.821565][ T5185] reiserfs: using flush barriers [ 66.832691][ T5185] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5175] <... ioctl resumed>) = 0 [pid 5175] close(4 [pid 5187] <... munmap resumed>) = 0 [pid 5175] <... close resumed>) = 0 [pid 5187] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5175] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5187] <... openat resumed>) = 4 [pid 5175] <... futex resumed>) = 1 [pid 5174] <... futex resumed>) = 0 [pid 5078] <... umount2 resumed>) = 0 [pid 5187] ioctl(4, LOOP_SET_FD, 3 [pid 5175] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [ 66.849820][ T5185] REISERFS (device loop2): checking transaction log (loop2) [ 66.864117][ T5183] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5174] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] umount2("./5/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5175] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5174] <... futex resumed>) = 0 [pid 5175] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5174] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5188] munmap(0x7fdb6a513000, 4194304 [pid 5187] <... ioctl resumed>) = 0 [pid 5175] <... open resumed>) = 4 [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5188] <... munmap resumed>) = 0 [pid 5175] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5188] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5175] <... futex resumed>) = 1 [pid 5174] <... futex resumed>) = 0 [pid 5188] <... openat resumed>) = 4 [pid 5175] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5174] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5187] close(3 [pid 5175] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5174] <... futex resumed>) = 0 [ 66.896999][ T5187] loop0: detected capacity change from 0 to 8192 [ 66.904051][ T5183] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 66.913297][ T5183] REISERFS (device loop1): using ordered data mode [ 66.920320][ T5183] reiserfs: using flush barriers [ 66.926886][ T5183] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5078] lstat("./5/file0", [pid 5187] <... close resumed>) = 0 [pid 5175] ioctl(4, FS_IOC_GETVERSION [pid 5174] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5188] ioctl(4, LOOP_SET_FD, 3 [pid 5078] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5188] <... ioctl resumed>) = 0 [pid 5187] mkdir("./file0", 0777 [pid 5175] <... ioctl resumed>, 0x20000080) = 0 [pid 5078] umount2("./5/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5175] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5188] close(3 [pid 5187] <... mkdir resumed>) = 0 [pid 5175] <... futex resumed>) = 1 [pid 5174] <... futex resumed>) = 0 [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5188] <... close resumed>) = 0 [pid 5187] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5175] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5174] exit_group(0 [pid 5078] openat(AT_FDCWD, "./5/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5188] mkdir("./file0", 0777 [pid 5175] <... futex resumed>) = ? [pid 5174] <... exit_group resumed>) = ? [pid 5078] <... openat resumed>) = 4 [pid 5188] <... mkdir resumed>) = 0 [pid 5175] +++ exited with 0 +++ [pid 5174] +++ exited with 0 +++ [pid 5078] fstat(4, [pid 5188] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5078] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5174, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=19 /* 0.19 s */} --- [pid 5078] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5078] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5078] close(4) = 0 [ 66.946083][ T5183] REISERFS (device loop1): checking transaction log (loop1) [ 66.952957][ T5188] loop5: detected capacity change from 0 to 8192 [pid 5077] umount2("./5", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5077] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5077] umount2("./5/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] lstat("./5/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5078] rmdir("./5/file0" [pid 5077] unlink("./5/binderfs") = 0 [pid 5077] umount2("./5/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5078] <... rmdir resumed>) = 0 [ 66.996000][ T5187] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 67.006769][ T5188] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 67.013641][ T5187] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [pid 5078] getdents64(3, [pid 5183] <... mount resumed>) = 0 [pid 5078] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5183] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5183] chdir("./file0") = 0 [pid 5183] ioctl(4, LOOP_CLR_FD) = 0 [pid 5183] close(4 [pid 5078] close(3) = 0 [ 67.040592][ T5183] REISERFS (device loop1): Using r5 hash to sort names [ 67.048658][ T5183] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 67.052351][ T5187] REISERFS (device loop0): using ordered data mode [ 67.059554][ T5188] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 67.064491][ T5187] reiserfs: using flush barriers [ 67.080202][ T5187] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5078] rmdir("./5") = 0 [pid 5078] mkdir("./6", 0777) = 0 [pid 5078] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5183] <... close resumed>) = 0 [pid 5078] ioctl(3, LOOP_CLR_FD [pid 5183] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5181] <... futex resumed>) = 0 [pid 5078] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5183] <... futex resumed>) = 1 [pid 5181] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5183] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5078] close(3 [pid 5181] <... futex resumed>) = 0 [pid 5181] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5078] <... close resumed>) = 0 [pid 5078] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5193 ./strace-static-x86_64: Process 5193 attached [pid 5193] set_robust_list(0x5555571745e0, 24) = 0 [pid 5193] chdir("./6") = 0 [pid 5193] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5183] <... open resumed>) = 4 [pid 5183] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5193] <... prctl resumed>) = 0 [pid 5183] <... futex resumed>) = 1 [pid 5181] <... futex resumed>) = 0 [pid 5183] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5181] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5183] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5181] <... futex resumed>) = 0 [pid 5183] ioctl(4, FS_IOC_GETVERSION [pid 5181] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5183] <... ioctl resumed>, 0x20000080) = 0 [pid 5183] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5193] setpgid(0, 0 [ 67.081105][ T5188] REISERFS (device loop5): using ordered data mode [ 67.097725][ T5187] REISERFS (device loop0): checking transaction log (loop0) [ 67.125374][ T5188] reiserfs: using flush barriers [pid 5181] <... futex resumed>) = 0 [pid 5183] <... futex resumed>) = 1 [pid 5193] <... setpgid resumed>) = 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 5183] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5181] exit_group(0 [pid 5183] <... futex resumed>) = ? [pid 5181] <... exit_group resumed>) = ? [pid 5193] symlink("/dev/binderfs", "./binderfs" [pid 5183] +++ exited with 0 +++ [pid 5193] <... symlink resumed>) = 0 [pid 5181] +++ exited with 0 +++ [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5181, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=21 /* 0.21 s */} --- [pid 5193] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5075] umount2("./5", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5193] <... futex resumed>) = 0 [pid 5193] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5193] <... mmap resumed>) = 0x7fdb72913000 [pid 5075] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5193] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5075] <... openat resumed>) = 3 [pid 5193] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5075] fstat(3, [pid 5193] <... clone resumed>, parent_tid=[5194], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5194 [pid 5193] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5193] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5075] umount2("./5/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5194 attached ) = -1 EINVAL (Invalid argument) [pid 5075] lstat("./5/binderfs", [pid 5194] set_robust_list(0x7fdb729339e0, 24 [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] unlink("./5/binderfs" [pid 5194] <... set_robust_list resumed>) = 0 [pid 5075] <... unlink resumed>) = 0 [pid 5194] memfd_create("syzkaller", 0 [pid 5075] umount2("./5/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5194] <... memfd_create resumed>) = 3 [ 67.158361][ T5188] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 67.196587][ T5188] REISERFS (device loop5): checking transaction log (loop5) [pid 5194] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [pid 5077] <... umount2 resumed>) = 0 [pid 5077] umount2("./5/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] lstat("./5/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] umount2("./5/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] openat(AT_FDCWD, "./5/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5077] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5077] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5077] close(4) = 0 [pid 5077] rmdir("./5/file0") = 0 [pid 5077] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5077] close(3) = 0 [pid 5077] rmdir("./5") = 0 [pid 5077] mkdir("./6", 0777) = 0 [pid 5077] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5077] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5077] close(3) = 0 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5195 ./strace-static-x86_64: Process 5195 attached [pid 5195] set_robust_list(0x5555571745e0, 24) = 0 [pid 5195] chdir("./6") = 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 [ 67.279555][ T5185] REISERFS (device loop2): Using r5 hash to sort names [pid 5195] write(3, "1000", 4) = 4 [pid 5075] <... umount2 resumed>) = 0 [pid 5195] close(3) = 0 [pid 5195] symlink("/dev/binderfs", "./binderfs" [pid 5075] umount2("./5/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5195] <... symlink resumed>) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5195] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5075] lstat("./5/file0", [pid 5195] <... futex resumed>) = 0 [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"..., 4194304 [pid 5195] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5185] <... mount resumed>) = 0 [pid 5075] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5195] <... mmap resumed>) = 0x7fdb72913000 [pid 5075] umount2("./5/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5075] openat(AT_FDCWD, "./5/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5195] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5185] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5075] <... openat resumed>) = 4 [pid 5195] <... mprotect resumed>) = 0 [pid 5075] fstat(4, [pid 5185] <... openat resumed>) = 3 [pid 5195] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5185] chdir("./file0" [pid 5075] getdents64(4, [pid 5195] <... clone resumed>, parent_tid=[5196], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5196 [ 67.341781][ T5185] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 67.376563][ T5188] REISERFS (device loop5): Using r5 hash to sort names [pid 5195] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5185] <... chdir resumed>) = 0 [pid 5075] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5195] <... futex resumed>) = 0 [pid 5185] ioctl(4, LOOP_CLR_FD [pid 5075] getdents64(4, [pid 5195] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5075] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5185] <... ioctl resumed>) = 0 [pid 5075] close(4 [pid 5185] close(4 [pid 5075] <... close resumed>) = 0 [pid 5185] <... close resumed>) = 0 [pid 5075] rmdir("./5/file0" [pid 5185] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5075] <... rmdir resumed>) = 0 [pid 5188] <... mount resumed>) = 0 [pid 5185] <... futex resumed>) = 1 [pid 5182] <... futex resumed>) = 0 [pid 5075] getdents64(3, ./strace-static-x86_64: Process 5196 attached [pid 5188] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5185] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5182] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5196] set_robust_list(0x7fdb729339e0, 24 [pid 5185] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5182] <... futex resumed>) = 0 [pid 5075] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5196] <... set_robust_list resumed>) = 0 [pid 5188] <... openat resumed>) = 3 [pid 5185] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5182] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5075] close(3 [pid 5185] <... open resumed>) = 4 [pid 5188] chdir("./file0" [pid 5075] <... close resumed>) = 0 [pid 5196] memfd_create("syzkaller", 0 [pid 5188] <... chdir resumed>) = 0 [pid 5185] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5075] rmdir("./5" [pid 5196] <... memfd_create resumed>) = 3 [pid 5188] ioctl(4, LOOP_CLR_FD [pid 5185] <... futex resumed>) = 1 [pid 5185] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5182] <... futex resumed>) = 0 [pid 5075] <... rmdir resumed>) = 0 [pid 5196] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5188] <... ioctl resumed>) = 0 [pid 5182] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5185] <... futex resumed>) = 0 [pid 5182] <... futex resumed>) = 1 [pid 5075] mkdir("./6", 0777 [pid 5188] close(4 [pid 5185] ioctl(4, FS_IOC_GETVERSION [pid 5182] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5196] <... mmap resumed>) = 0x7fdb6a513000 [pid 5188] <... close resumed>) = 0 [pid 5185] <... ioctl resumed>, 0x20000080) = 0 [pid 5075] <... mkdir resumed>) = 0 [pid 5188] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5185] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5075] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5194] <... write resumed>) = 4194304 [pid 5188] <... futex resumed>) = 1 [pid 5186] <... futex resumed>) = 0 [pid 5185] <... futex resumed>) = 1 [pid 5182] <... futex resumed>) = 0 [pid 5194] munmap(0x7fdb6a513000, 4194304 [pid 5188] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5186] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5185] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5182] exit_group(0 [pid 5075] <... openat resumed>) = 3 [pid 5194] <... munmap resumed>) = 0 [pid 5188] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5186] <... futex resumed>) = 0 [ 67.401053][ T5188] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 5185] <... futex resumed>) = ? [pid 5182] <... exit_group resumed>) = ? [pid 5075] ioctl(3, LOOP_CLR_FD [pid 5194] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5188] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5186] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5185] +++ exited with 0 +++ [pid 5182] +++ exited with 0 +++ [pid 5075] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5194] <... openat resumed>) = 4 [pid 5188] <... open resumed>) = 4 [pid 5194] ioctl(4, LOOP_SET_FD, 3 [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5182, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=17 /* 0.17 s */} --- [pid 5075] close(3 [pid 5188] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5075] <... close resumed>) = 0 [pid 5196] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5194] <... ioctl resumed>) = 0 [pid 5188] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5187] <... mount resumed>) = 0 [pid 5186] <... futex resumed>) = 0 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5194] close(3 [pid 5187] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5186] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5076] umount2("./5", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5194] <... close resumed>) = 0 [pid 5188] <... futex resumed>) = 0 [pid 5187] <... openat resumed>) = 3 [pid 5186] <... futex resumed>) = 1 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... clone resumed>, child_tidptr=0x5555571745d0) = 5197 [pid 5194] mkdir("./file0", 0777 [pid 5188] ioctl(4, FS_IOC_GETVERSION [pid 5187] chdir("./file0" [pid 5186] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5076] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY./strace-static-x86_64: Process 5197 attached [pid 5194] <... mkdir resumed>) = 0 [pid 5188] <... ioctl resumed>, 0x20000080) = 0 [pid 5187] <... chdir resumed>) = 0 [pid 5076] <... openat resumed>) = 3 [pid 5197] set_robust_list(0x5555571745e0, 24 [pid 5194] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5188] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5187] ioctl(4, LOOP_CLR_FD [pid 5197] <... set_robust_list resumed>) = 0 [pid 5188] <... futex resumed>) = 1 [pid 5186] <... futex resumed>) = 0 [pid 5076] fstat(3, [pid 5187] <... ioctl resumed>) = 0 [pid 5197] chdir("./6" [pid 5188] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [ 67.468338][ T5194] loop4: detected capacity change from 0 to 8192 [ 67.473968][ T5187] REISERFS (device loop0): Using r5 hash to sort names [ 67.484110][ T5187] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5186] exit_group(0 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5197] <... chdir resumed>) = 0 [pid 5188] <... futex resumed>) = ? [pid 5187] close(4 [pid 5186] <... exit_group resumed>) = ? [pid 5076] getdents64(3, [pid 5197] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5196] <... write resumed>) = 4194304 [pid 5188] +++ exited with 0 +++ [pid 5187] <... close resumed>) = 0 [pid 5076] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5196] munmap(0x7fdb6a513000, 4194304 [pid 5187] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5076] umount2("./5/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5196] <... munmap resumed>) = 0 [pid 5187] <... futex resumed>) = 1 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5196] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5187] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5076] lstat("./5/binderfs", [pid 5196] <... openat resumed>) = 4 [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5196] ioctl(4, LOOP_SET_FD, 3 [pid 5076] unlink("./5/binderfs" [pid 5197] <... prctl resumed>) = 0 [pid 5186] +++ exited with 0 +++ [pid 5184] <... futex resumed>) = 0 [pid 5076] <... unlink resumed>) = 0 [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5186, si_uid=0, si_status=0, si_utime=0, si_stime=23 /* 0.23 s */} --- [pid 5076] umount2("./5/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5197] setpgid(0, 0 [pid 5184] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] umount2("./5", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5197] <... setpgid resumed>) = 0 [pid 5187] <... futex resumed>) = 0 [pid 5184] <... futex resumed>) = 1 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5197] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5187] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5184] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5079] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5197] <... openat resumed>) = 3 [pid 5187] <... open resumed>) = 4 [pid 5079] <... openat resumed>) = 3 [pid 5197] write(3, "1000", 4 [pid 5196] <... ioctl resumed>) = 0 [pid 5187] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] fstat(3, [pid 5197] <... write resumed>) = 4 [ 67.530226][ T5194] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 67.549628][ T5196] loop3: detected capacity change from 0 to 8192 [ 67.563231][ T5194] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 67.572939][ T5194] REISERFS (device loop4): using ordered data mode [pid 5197] close(3 [pid 5196] close(3 [pid 5187] <... futex resumed>) = 1 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5196] <... close resumed>) = 0 [pid 5187] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5079] getdents64(3, [pid 5196] mkdir("./file0", 0777 [pid 5079] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5196] <... mkdir resumed>) = 0 [pid 5079] umount2("./5/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5196] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5197] <... close resumed>) = 0 [pid 5184] <... futex resumed>) = 0 [pid 5079] lstat("./5/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] unlink("./5/binderfs") = 0 [pid 5079] umount2("./5/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5197] symlink("/dev/binderfs", "./binderfs" [pid 5184] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5187] <... futex resumed>) = 0 [pid 5184] <... futex resumed>) = 1 [pid 5197] <... symlink resumed>) = 0 [pid 5187] ioctl(4, FS_IOC_GETVERSION [pid 5184] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5197] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5187] <... ioctl resumed>, 0x20000080) = 0 [pid 5187] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5197] <... futex resumed>) = 0 [pid 5187] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5184] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5197] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5184] exit_group(0 [pid 5197] <... mmap resumed>) = 0x7fdb72913000 [pid 5184] <... exit_group resumed>) = ? [pid 5197] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5197] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5187] <... futex resumed>) = ? [pid 5197] <... clone resumed>, parent_tid=[5200], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5200 [pid 5197] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 67.580657][ T5194] reiserfs: using flush barriers [ 67.587259][ T5196] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 67.606660][ T5194] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5197] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5200 attached [pid 5200] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5187] +++ exited with 0 +++ [pid 5184] +++ exited with 0 +++ [pid 5200] memfd_create("syzkaller", 0) = 3 [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5184, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} --- [pid 5200] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5076] <... umount2 resumed>) = 0 [pid 5074] umount2("./5", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5200] <... mmap resumed>) = 0x7fdb6a513000 [pid 5076] umount2("./5/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] <... openat resumed>) = 3 [pid 5074] fstat(3, [pid 5076] lstat("./5/file0", [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] getdents64(3, [pid 5076] umount2("./5/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] umount2("./5/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] openat(AT_FDCWD, "./5/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... openat resumed>) = 4 [ 67.624448][ T5194] REISERFS (device loop4): checking transaction log (loop4) [ 67.644567][ T5196] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [pid 5074] lstat("./5/binderfs", [pid 5076] fstat(4, [pid 5074] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] unlink("./5/binderfs") = 0 [pid 5076] getdents64(4, [pid 5074] umount2("./5/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5076] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5076] close(4) = 0 [pid 5076] rmdir("./5/file0") = 0 [pid 5076] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5076] close(3) = 0 [pid 5076] rmdir("./5") = 0 [pid 5076] mkdir("./6", 0777) = 0 [pid 5076] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5076] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5076] close(3) = 0 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5201 [pid 5079] <... umount2 resumed>) = 0 ./strace-static-x86_64: Process 5201 attached [pid 5201] set_robust_list(0x5555571745e0, 24) = 0 [pid 5201] chdir("./6") = 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(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5201] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [ 67.704799][ T5196] REISERFS (device loop3): using ordered data mode [ 67.711546][ T5196] reiserfs: using flush barriers [ 67.720075][ T5196] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5201] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5201] clone(child_stack=0x7fdb729333f0, 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=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5202 [pid 5201] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5201] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5202 attached [pid 5202] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5202] memfd_create("syzkaller", 0) = 3 [pid 5202] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [pid 5079] umount2("./5/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] lstat("./5/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] umount2("./5/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./5/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5079] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5079] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5079] close(4) = 0 [pid 5079] rmdir("./5/file0") = 0 [pid 5079] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5079] close(3) = 0 [pid 5079] rmdir("./5") = 0 [pid 5079] mkdir("./6", 0777 [pid 5200] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5079] <... mkdir resumed>) = 0 [pid 5079] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5079] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5079] close(3) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5203 ./strace-static-x86_64: Process 5203 attached [pid 5203] set_robust_list(0x5555571745e0, 24) = 0 [ 67.806620][ T5194] REISERFS (device loop4): Using r5 hash to sort names [ 67.844292][ T5196] REISERFS (device loop3): checking transaction log (loop3) [pid 5203] chdir("./6") = 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(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5203] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5203] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5203] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5204], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5204 [pid 5203] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5203] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5204 attached [pid 5204] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5204] memfd_create("syzkaller", 0) = 3 [pid 5204] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [ 67.846089][ T5194] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [pid 5202] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5194] <... mount resumed>) = 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(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5194] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5193] <... futex resumed>) = 0 [pid 5193] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5194] <... futex resumed>) = 0 [pid 5193] <... futex resumed>) = 1 [pid 5194] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5193] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5194] <... open resumed>) = 4 [pid 5194] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5193] <... futex resumed>) = 0 [pid 5194] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5193] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5194] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5193] <... futex resumed>) = 0 [pid 5194] ioctl(4, FS_IOC_GETVERSION [pid 5193] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5194] <... ioctl resumed>, 0x20000080) = 0 [pid 5194] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5193] <... futex resumed>) = 0 [pid 5194] futex(0x7fdb72a0d7a8, 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 +++ [pid 5078] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5193, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=18 /* 0.18 s */} --- [pid 5078] umount2("./6", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5078] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5078] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5078] umount2("./6/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5078] lstat("./6/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5078] unlink("./6/binderfs") = 0 [pid 5078] umount2("./6/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5204] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5074] <... umount2 resumed>) = 0 [pid 5074] umount2("./5/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] lstat("./5/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] umount2("./5/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] openat(AT_FDCWD, "./5/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5074] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5074] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5074] close(4) = 0 [pid 5074] rmdir("./5/file0") = 0 [pid 5202] <... write resumed>) = 4194304 [pid 5074] getdents64(3, [pid 5202] munmap(0x7fdb6a513000, 4194304 [pid 5074] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5074] close(3) = 0 [pid 5074] rmdir("./5" [pid 5202] <... munmap resumed>) = 0 [pid 5074] <... rmdir resumed>) = 0 [pid 5202] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5074] mkdir("./6", 0777 [pid 5202] <... openat resumed>) = 4 [pid 5074] <... mkdir resumed>) = 0 [pid 5074] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5202] ioctl(4, LOOP_SET_FD, 3 [pid 5074] <... openat resumed>) = 3 [pid 5200] <... write resumed>) = 4194304 [pid 5074] ioctl(3, LOOP_CLR_FD [pid 5200] munmap(0x7fdb6a513000, 4194304 [pid 5074] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5200] <... munmap resumed>) = 0 [pid 5074] close(3 [pid 5200] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5074] <... close resumed>) = 0 [pid 5200] <... openat resumed>) = 4 [pid 5200] ioctl(4, LOOP_SET_FD, 3 [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5202] <... ioctl resumed>) = 0 [pid 5202] close(3) = 0 [pid 5202] mkdir("./file0", 0777 [pid 5074] <... clone resumed>, child_tidptr=0x5555571745d0) = 5205 [pid 5202] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 5205 attached [pid 5202] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5205] set_robust_list(0x5555571745e0, 24 [pid 5204] <... write resumed>) = 4194304 [pid 5205] <... set_robust_list resumed>) = 0 [pid 5200] <... ioctl resumed>) = 0 [pid 5205] chdir("./6") = 0 [ 68.045488][ T5202] loop2: detected capacity change from 0 to 8192 [ 68.057512][ T5200] loop1: detected capacity change from 0 to 8192 [pid 5205] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5200] close(3 [pid 5205] setpgid(0, 0) = 0 [pid 5200] <... close resumed>) = 0 [pid 5200] mkdir("./file0", 0777 [pid 5205] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5200] <... mkdir resumed>) = 0 [pid 5200] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5205] <... openat resumed>) = 3 [pid 5205] write(3, "1000", 4) = 4 [pid 5205] close(3) = 0 [pid 5205] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5205] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 68.096906][ T5202] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 68.121790][ T5200] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5204] munmap(0x7fdb6a513000, 4194304 [pid 5205] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5078] <... umount2 resumed>) = 0 [pid 5204] <... munmap resumed>) = 0 [pid 5204] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 5204] ioctl(4, LOOP_SET_FD, 3 [pid 5205] <... mmap resumed>) = 0x7fdb72913000 [pid 5078] umount2("./6/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5205] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 68.155181][ T5202] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 68.157489][ T5204] loop5: detected capacity change from 0 to 8192 [ 68.166917][ T5202] REISERFS (device loop2): using ordered data mode [ 68.173469][ T5196] REISERFS (device loop3): Using r5 hash to sort names [ 68.179953][ T5202] reiserfs: using flush barriers [ 68.188606][ T5200] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [pid 5205] <... mprotect resumed>) = 0 [pid 5204] <... ioctl resumed>) = 0 [pid 5078] lstat("./6/file0", [pid 5205] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5204] close(3 [pid 5078] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5204] <... close resumed>) = 0 [pid 5078] umount2("./6/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5204] mkdir("./file0", 0777 [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5208 attached [pid 5205] <... clone resumed>, parent_tid=[5208], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5208 [pid 5204] <... mkdir resumed>) = 0 [pid 5196] <... mount resumed>) = 0 [pid 5078] openat(AT_FDCWD, "./6/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5208] set_robust_list(0x7fdb729339e0, 24 [pid 5205] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5204] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5078] <... openat resumed>) = 4 [pid 5208] <... set_robust_list resumed>) = 0 [pid 5205] <... futex resumed>) = 0 [pid 5078] fstat(4, [pid 5208] memfd_create("syzkaller", 0 [pid 5205] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5078] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5208] <... memfd_create resumed>) = 3 [pid 5078] getdents64(4, [ 68.192339][ T5196] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 68.201214][ T5200] REISERFS (device loop1): using ordered data mode [ 68.209539][ T5202] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 68.216328][ T5200] reiserfs: using flush barriers [ 68.238868][ T5202] REISERFS (device loop2): checking transaction log (loop2) [pid 5208] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5078] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5208] <... mmap resumed>) = 0x7fdb6a513000 [pid 5078] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5078] close(4) = 0 [pid 5078] rmdir("./6/file0") = 0 [pid 5078] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5078] close(3) = 0 [pid 5078] rmdir("./6" [pid 5196] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5078] <... rmdir resumed>) = 0 [pid 5196] <... openat resumed>) = 3 [pid 5078] mkdir("./7", 0777 [pid 5196] chdir("./file0" [pid 5078] <... mkdir resumed>) = 0 [pid 5196] <... chdir resumed>) = 0 [pid 5078] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5196] ioctl(4, LOOP_CLR_FD [pid 5078] <... openat resumed>) = 3 [ 68.250258][ T5200] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5196] <... ioctl resumed>) = 0 [pid 5078] ioctl(3, LOOP_CLR_FD [pid 5196] close(4 [pid 5078] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5196] <... close resumed>) = 0 [pid 5078] close(3 [pid 5196] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] <... close resumed>) = 0 [pid 5196] <... futex resumed>) = 1 [pid 5195] <... futex resumed>) = 0 [pid 5078] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5196] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5195] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5196] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5195] <... futex resumed>) = 0 [pid 5078] <... clone resumed>, child_tidptr=0x5555571745d0) = 5210 [pid 5196] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5195] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5196] <... open resumed>) = 4 [pid 5196] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 5210 attached ) = 1 [pid 5195] <... futex resumed>) = 0 [pid 5210] set_robust_list(0x5555571745e0, 24 [pid 5196] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5195] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5210] <... set_robust_list resumed>) = 0 [pid 5196] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5195] <... futex resumed>) = 0 [ 68.296350][ T5204] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 68.321873][ T5204] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [pid 5196] ioctl(4, FS_IOC_GETVERSION [pid 5195] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5210] chdir("./7" [pid 5196] <... ioctl resumed>, 0x20000080) = 0 [pid 5210] <... chdir resumed>) = 0 [pid 5196] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5210] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5196] <... futex resumed>) = 1 [pid 5195] <... futex resumed>) = 0 [pid 5210] <... prctl resumed>) = 0 [pid 5196] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5195] exit_group(0 [pid 5210] setpgid(0, 0 [pid 5196] <... futex resumed>) = ? [pid 5195] <... exit_group resumed>) = ? [pid 5210] <... setpgid resumed>) = 0 [pid 5196] +++ exited with 0 +++ [pid 5195] +++ exited with 0 +++ [pid 5210] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5210] write(3, "1000", 4) = 4 [pid 5210] close(3) = 0 [pid 5210] symlink("/dev/binderfs", "./binderfs" [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5195, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=22 /* 0.22 s */} --- [pid 5210] <... symlink resumed>) = 0 [pid 5210] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5210] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5210] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5077] restart_syscall(<... resuming interrupted clone ...> [pid 5210] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5211], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5211 [pid 5077] <... restart_syscall resumed>) = 0 ./strace-static-x86_64: Process 5211 attached [pid 5210] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5211] set_robust_list(0x7fdb729339e0, 24 [pid 5210] <... futex resumed>) = 0 [pid 5211] <... set_robust_list resumed>) = 0 [ 68.352585][ T5204] REISERFS (device loop5): using ordered data mode [ 68.370514][ T5202] REISERFS (device loop2): Using r5 hash to sort names [ 68.378978][ T5204] reiserfs: using flush barriers [ 68.388318][ T5202] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 5210] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5211] memfd_create("syzkaller", 0 [pid 5208] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5077] umount2("./6", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5211] <... memfd_create resumed>) = 3 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5211] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5077] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5211] <... mmap resumed>) = 0x7fdb6a513000 [pid 5077] <... openat resumed>) = 3 [pid 5202] <... mount resumed>) = 0 [pid 5202] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5077] fstat(3, [pid 5202] <... openat resumed>) = 3 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5202] chdir("./file0" [pid 5077] getdents64(3, [pid 5202] <... chdir resumed>) = 0 [pid 5202] ioctl(4, LOOP_CLR_FD [pid 5077] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5202] <... ioctl resumed>) = 0 [pid 5077] umount2("./6/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5202] close(4 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5202] <... close resumed>) = 0 [pid 5077] lstat("./6/binderfs", [pid 5202] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5202] <... futex resumed>) = 1 [pid 5201] <... futex resumed>) = 0 [pid 5077] unlink("./6/binderfs" [pid 5202] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5201] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] <... unlink resumed>) = 0 [pid 5202] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5201] <... futex resumed>) = 0 [pid 5077] umount2("./6/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5202] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5201] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5202] <... open resumed>) = 4 [pid 5202] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [ 68.389967][ T5200] REISERFS (device loop1): checking transaction log (loop1) [ 68.399171][ T5204] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 68.434171][ T5204] REISERFS (device loop5): checking transaction log (loop5) [pid 5201] <... futex resumed>) = 0 [pid 5202] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5201] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5202] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5201] <... futex resumed>) = 0 [pid 5202] ioctl(4, FS_IOC_GETVERSION [pid 5201] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5211] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5202] <... ioctl resumed>, 0x20000080) = 0 [pid 5202] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5201] <... futex resumed>) = 0 [pid 5202] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5201] exit_group(0 [pid 5202] <... futex resumed>) = ? [pid 5201] <... exit_group resumed>) = ? [pid 5202] +++ exited with 0 +++ [pid 5201] +++ exited with 0 +++ [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5201, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=21 /* 0.21 s */} --- [pid 5076] umount2("./6", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5076] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5076] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5076] umount2("./6/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5076] lstat("./6/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] unlink("./6/binderfs") = 0 [pid 5076] umount2("./6/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5208] <... write resumed>) = 4194304 [pid 5208] munmap(0x7fdb6a513000, 4194304) = 0 [pid 5208] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5208] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5208] close(3) = 0 [pid 5208] mkdir("./file0", 0777) = 0 [ 68.602403][ T5208] loop0: detected capacity change from 0 to 8192 [pid 5208] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5211] <... write resumed>) = 4194304 [pid 5211] munmap(0x7fdb6a513000, 4194304) = 0 [pid 5211] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [ 68.644109][ T5208] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 68.672666][ T5211] loop4: detected capacity change from 0 to 8192 [ 68.683486][ T5208] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [pid 5211] ioctl(4, LOOP_SET_FD, 3 [pid 5077] <... umount2 resumed>) = 0 [pid 5211] <... ioctl resumed>) = 0 [pid 5200] <... mount resumed>) = 0 [pid 5077] umount2("./6/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5211] close(3 [pid 5200] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5211] <... close resumed>) = 0 [pid 5200] <... openat resumed>) = 3 [pid 5077] lstat("./6/file0", [pid 5211] mkdir("./file0", 0777 [pid 5200] chdir("./file0" [pid 5077] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5211] <... mkdir resumed>) = 0 [pid 5200] <... chdir resumed>) = 0 [pid 5077] umount2("./6/file0", MNT_DETACH|UMOUNT_NOFOLLOW [ 68.688068][ T5200] REISERFS (device loop1): Using r5 hash to sort names [ 68.692842][ T5208] REISERFS (device loop0): using ordered data mode [ 68.707461][ T5208] reiserfs: using flush barriers [ 68.713987][ T5200] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 68.724917][ T5208] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5211] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5200] ioctl(4, LOOP_CLR_FD [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... umount2 resumed>) = 0 [pid 5200] <... ioctl resumed>) = 0 [pid 5077] openat(AT_FDCWD, "./6/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] umount2("./6/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5200] close(4 [pid 5077] <... openat resumed>) = 4 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5200] <... close resumed>) = 0 [pid 5077] fstat(4, [pid 5076] lstat("./6/file0", [pid 5200] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5197] <... futex resumed>) = 0 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5197] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5200] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5197] <... futex resumed>) = 0 [pid 5077] getdents64(4, [pid 5076] umount2("./6/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5200] <... open resumed>) = 4 [pid 5197] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5200] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5200] <... futex resumed>) = 1 [pid 5197] <... futex resumed>) = 0 [pid 5077] getdents64(4, [pid 5200] ioctl(4, FS_IOC_GETVERSION [pid 5197] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5076] openat(AT_FDCWD, "./6/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5200] <... ioctl resumed>, 0x20000080) = 0 [pid 5197] <... futex resumed>) = 0 [pid 5200] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [ 68.744393][ T5211] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 68.749565][ T5208] REISERFS (device loop0): checking transaction log (loop0) [pid 5197] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5077] close(4 [pid 5076] <... openat resumed>) = 4 [pid 5200] <... futex resumed>) = 0 [pid 5197] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5077] <... close resumed>) = 0 [pid 5076] fstat(4, [pid 5200] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5077] rmdir("./6/file0" [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5197] exit_group(0 [pid 5077] <... rmdir resumed>) = 0 [pid 5076] getdents64(4, [pid 5077] getdents64(3, [pid 5076] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5200] <... futex resumed>) = ? [pid 5197] <... exit_group resumed>) = ? [pid 5200] +++ exited with 0 +++ [pid 5077] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5076] getdents64(4, [pid 5197] +++ exited with 0 +++ [pid 5077] close(3 [pid 5076] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5077] <... close resumed>) = 0 [pid 5076] close(4 [pid 5077] rmdir("./6" [pid 5076] <... close resumed>) = 0 [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5197, si_uid=0, si_status=0, si_utime=0, si_stime=28 /* 0.28 s */} --- [pid 5077] <... rmdir resumed>) = 0 [pid 5076] rmdir("./6/file0" [pid 5077] mkdir("./7", 0777 [pid 5076] <... rmdir resumed>) = 0 [pid 5077] <... mkdir resumed>) = 0 [pid 5076] getdents64(3, [pid 5077] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5076] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5077] <... openat resumed>) = 3 [pid 5076] close(3 [pid 5075] restart_syscall(<... resuming interrupted clone ...> [ 68.812705][ T5211] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 68.841009][ T5204] REISERFS (device loop5): Using r5 hash to sort names [ 68.850705][ T5208] REISERFS (device loop0): Using r5 hash to sort names [pid 5077] ioctl(3, LOOP_CLR_FD [pid 5076] <... close resumed>) = 0 [pid 5075] <... restart_syscall resumed>) = 0 [pid 5077] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5076] rmdir("./6" [pid 5077] close(3 [pid 5076] <... rmdir resumed>) = 0 [pid 5077] <... close resumed>) = 0 [pid 5076] mkdir("./7", 0777 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] <... mkdir resumed>) = 0 [pid 5076] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5077] <... clone resumed>, child_tidptr=0x5555571745d0) = 5214 [pid 5076] <... openat resumed>) = 3 [pid 5076] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5076] close(3) = 0 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] umount2("./6", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5214 attached [pid 5076] <... clone resumed>, child_tidptr=0x5555571745d0) = 5215 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5214] set_robust_list(0x5555571745e0, 24) = 0 [pid 5214] chdir("./7") = 0 [pid 5214] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 ./strace-static-x86_64: Process 5215 attached [pid 5214] setpgid(0, 0 [pid 5215] set_robust_list(0x5555571745e0, 24 [pid 5214] <... setpgid resumed>) = 0 [pid 5215] <... set_robust_list resumed>) = 0 [pid 5214] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5215] chdir("./7" [pid 5214] <... openat resumed>) = 3 [pid 5215] <... chdir resumed>) = 0 [pid 5214] write(3, "1000", 4 [pid 5075] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5215] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5214] <... write resumed>) = 4 [pid 5075] <... openat resumed>) = 3 [pid 5215] <... prctl resumed>) = 0 [pid 5214] close(3 [pid 5075] fstat(3, [pid 5215] setpgid(0, 0 [pid 5214] <... close resumed>) = 0 [pid 5215] <... setpgid resumed>) = 0 [pid 5214] symlink("/dev/binderfs", "./binderfs" [pid 5215] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5214] <... symlink resumed>) = 0 [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5215] <... openat resumed>) = 3 [pid 5214] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5075] getdents64(3, [pid 5215] write(3, "1000", 4 [pid 5214] <... futex resumed>) = 0 [pid 5075] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5215] <... write resumed>) = 4 [pid 5214] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5075] umount2("./6/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5215] close(3 [pid 5214] <... mmap resumed>) = 0x7fdb72913000 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5215] <... close resumed>) = 0 [pid 5214] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5075] lstat("./6/binderfs", [pid 5215] symlink("/dev/binderfs", "./binderfs" [pid 5214] <... mprotect resumed>) = 0 [pid 5204] <... mount resumed>) = 0 [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5215] <... symlink resumed>) = 0 [ 68.851453][ T5211] REISERFS (device loop4): using ordered data mode [ 68.877450][ T5204] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 5214] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5204] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5075] unlink("./6/binderfs"./strace-static-x86_64: Process 5216 attached [pid 5215] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5204] <... openat resumed>) = 3 [pid 5215] <... futex resumed>) = 0 [pid 5214] <... clone resumed>, parent_tid=[5216], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5216 [pid 5215] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5214] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5215] <... mmap resumed>) = 0x7fdb72913000 [pid 5214] <... futex resumed>) = 0 [pid 5215] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5214] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5216] set_robust_list(0x7fdb729339e0, 24 [pid 5215] <... mprotect resumed>) = 0 [pid 5204] chdir("./file0" [pid 5075] <... unlink resumed>) = 0 [pid 5215] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5217], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5217 [pid 5215] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5215] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5217 attached [pid 5217] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5217] memfd_create("syzkaller", 0) = 3 [pid 5217] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [pid 5216] <... set_robust_list resumed>) = 0 [pid 5204] <... chdir resumed>) = 0 [pid 5075] umount2("./6/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5216] memfd_create("syzkaller", 0 [pid 5204] ioctl(4, LOOP_CLR_FD) = 0 [pid 5216] <... memfd_create resumed>) = 3 [pid 5204] close(4 [pid 5208] <... mount resumed>) = 0 [pid 5204] <... close resumed>) = 0 [pid 5208] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5208] chdir("./file0") = 0 [pid 5216] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5208] ioctl(4, LOOP_CLR_FD [pid 5204] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5216] <... mmap resumed>) = 0x7fdb6a513000 [pid 5208] <... ioctl resumed>) = 0 [pid 5204] <... futex resumed>) = 1 [pid 5203] <... futex resumed>) = 0 [pid 5208] close(4 [pid 5203] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5208] <... close resumed>) = 0 [pid 5203] <... futex resumed>) = 0 [pid 5204] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5208] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5203] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5208] <... futex resumed>) = 1 [pid 5205] <... futex resumed>) = 0 [pid 5204] <... open resumed>) = 4 [pid 5208] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5205] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5204] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5208] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5205] <... futex resumed>) = 0 [pid 5204] <... futex resumed>) = 1 [pid 5203] <... futex resumed>) = 0 [pid 5208] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5205] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5204] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5203] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5208] <... open resumed>) = 4 [pid 5204] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5203] <... futex resumed>) = 0 [pid 5208] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5204] ioctl(4, FS_IOC_GETVERSION [pid 5203] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5208] <... futex resumed>) = 1 [pid 5205] <... futex resumed>) = 0 [pid 5204] <... ioctl resumed>, 0x20000080) = 0 [pid 5208] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5205] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5204] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5208] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5205] <... futex resumed>) = 0 [pid 5204] <... futex resumed>) = 1 [pid 5203] <... futex resumed>) = 0 [pid 5208] ioctl(4, FS_IOC_GETVERSION [pid 5205] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5204] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5203] exit_group(0 [pid 5208] <... ioctl resumed>, 0x20000080) = 0 [ 68.909658][ T5208] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 68.915385][ T5211] reiserfs: using flush barriers [ 68.926469][ T5211] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 68.944323][ T5211] REISERFS (device loop4): checking transaction log (loop4) [pid 5204] <... futex resumed>) = ? [pid 5203] <... exit_group resumed>) = ? [pid 5208] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5204] +++ exited with 0 +++ [pid 5203] +++ exited with 0 +++ [pid 5208] <... futex resumed>) = 1 [pid 5205] <... futex resumed>) = 0 [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5203, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=20 /* 0.20 s */} --- [pid 5208] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5205] exit_group(0 [pid 5079] restart_syscall(<... resuming interrupted clone ...> [pid 5208] <... futex resumed>) = ? [pid 5205] <... exit_group resumed>) = ? [pid 5079] <... restart_syscall resumed>) = 0 [pid 5208] +++ exited with 0 +++ [pid 5205] +++ exited with 0 +++ [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5205, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=18 /* 0.18 s */} --- [pid 5079] umount2("./6", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] umount2("./6", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5074] <... openat resumed>) = 3 [pid 5079] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] fstat(3, [pid 5079] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] umount2("./6/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] getdents64(3, [pid 5079] lstat("./6/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5074] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5079] unlink("./6/binderfs" [pid 5074] umount2("./6/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... unlink resumed>) = 0 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] umount2("./6/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] lstat("./6/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5074] unlink("./6/binderfs") = 0 [pid 5074] umount2("./6/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5217] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5074] <... umount2 resumed>) = 0 [pid 5074] umount2("./6/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] lstat("./6/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] umount2("./6/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] openat(AT_FDCWD, "./6/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5074] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5074] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5074] close(4 [pid 5216] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5074] <... close resumed>) = 0 [pid 5074] rmdir("./6/file0") = 0 [pid 5074] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5074] close(3) = 0 [pid 5074] rmdir("./6") = 0 [pid 5074] mkdir("./7", 0777) = 0 [pid 5074] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5075] <... umount2 resumed>) = 0 [pid 5075] umount2("./6/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5075] lstat("./6/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] <... openat resumed>) = 3 [pid 5075] umount2("./6/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] ioctl(3, LOOP_CLR_FD [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5075] openat(AT_FDCWD, "./6/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5074] close(3 [pid 5075] <... openat resumed>) = 4 [pid 5074] <... close resumed>) = 0 [pid 5075] fstat(4, [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5074] <... clone resumed>, child_tidptr=0x5555571745d0) = 5218 [pid 5075] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5075] close(4) = 0 [pid 5075] rmdir("./6/file0") = 0 [pid 5075] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 5218 attached [pid 5075] close(3 [pid 5218] set_robust_list(0x5555571745e0, 24 [pid 5075] <... close resumed>) = 0 [pid 5218] <... set_robust_list resumed>) = 0 [pid 5075] rmdir("./6" [pid 5218] chdir("./7" [pid 5075] <... rmdir resumed>) = 0 [pid 5218] <... chdir resumed>) = 0 [pid 5075] mkdir("./7", 0777 [pid 5218] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5075] <... mkdir resumed>) = 0 [pid 5218] setpgid(0, 0 [pid 5075] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5218] <... setpgid resumed>) = 0 [pid 5075] <... openat resumed>) = 3 [pid 5218] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5075] ioctl(3, LOOP_CLR_FD [pid 5218] <... openat resumed>) = 3 [pid 5218] write(3, "1000", 4 [pid 5075] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5218] <... write resumed>) = 4 [pid 5217] <... write resumed>) = 4194304 [pid 5217] munmap(0x7fdb6a513000, 4194304 [pid 5075] close(3 [pid 5218] close(3 [pid 5075] <... close resumed>) = 0 [pid 5217] <... munmap resumed>) = 0 [pid 5217] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5217] ioctl(4, LOOP_SET_FD, 3 [pid 5218] <... close resumed>) = 0 [pid 5217] <... ioctl resumed>) = 0 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5218] symlink("/dev/binderfs", "./binderfs" [pid 5079] <... umount2 resumed>) = 0 [pid 5218] <... symlink resumed>) = 0 [pid 5075] <... clone resumed>, child_tidptr=0x5555571745d0) = 5219 [pid 5218] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] umount2("./6/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5218] <... futex resumed>) = 0 ./strace-static-x86_64: Process 5219 attached [pid 5218] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5219] set_robust_list(0x5555571745e0, 24 [pid 5218] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5216] <... write resumed>) = 4194304 [pid 5079] lstat("./6/file0", [pid 5219] <... set_robust_list resumed>) = 0 [pid 5218] <... mprotect resumed>) = 0 [pid 5079] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] umount2("./6/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5217] close(3 [pid 5079] openat(AT_FDCWD, "./6/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5219] chdir("./7" [pid 5218] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5217] <... close resumed>) = 0 [pid 5079] <... openat resumed>) = 4 [pid 5219] <... chdir resumed>) = 0 [pid 5217] mkdir("./file0", 0777 [pid 5211] <... mount resumed>) = 0 [pid 5079] fstat(4, [pid 5219] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5218] <... clone resumed>, parent_tid=[5220], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5220 [pid 5217] <... mkdir resumed>) = 0 [pid 5216] munmap(0x7fdb6a513000, 4194304 [pid 5211] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5219] <... prctl resumed>) = 0 [pid 5218] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5217] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5216] <... munmap resumed>) = 0 [pid 5211] <... openat resumed>) = 3 [pid 5079] getdents64(4, [pid 5219] setpgid(0, 0 [pid 5218] <... futex resumed>) = 0 [pid 5216] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5211] chdir("./file0" [pid 5079] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5219] <... setpgid resumed>) = 0 [ 69.259381][ T5211] REISERFS (device loop4): Using r5 hash to sort names [ 69.273279][ T5217] loop2: detected capacity change from 0 to 8192 [ 69.290593][ T5211] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [pid 5218] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5216] <... openat resumed>) = 4 [pid 5211] <... chdir resumed>) = 0 [pid 5079] getdents64(4, ./strace-static-x86_64: Process 5220 attached [pid 5219] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5211] ioctl(4, LOOP_CLR_FD [pid 5220] set_robust_list(0x7fdb729339e0, 24 [pid 5219] <... openat resumed>) = 3 [pid 5211] <... ioctl resumed>) = 0 [pid 5220] <... set_robust_list resumed>) = 0 [pid 5219] write(3, "1000", 4 [pid 5211] close(4 [pid 5220] memfd_create("syzkaller", 0 [pid 5219] <... write resumed>) = 4 [pid 5216] ioctl(4, LOOP_SET_FD, 3 [pid 5211] <... close resumed>) = 0 [pid 5079] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5220] <... memfd_create resumed>) = 3 [pid 5219] close(3 [pid 5211] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5220] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5219] <... close resumed>) = 0 [pid 5211] <... futex resumed>) = 1 [pid 5220] <... mmap resumed>) = 0x7fdb6a513000 [pid 5219] symlink("/dev/binderfs", "./binderfs" [pid 5211] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5219] <... symlink resumed>) = 0 [pid 5219] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5219] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5219] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5219] clone(child_stack=0x7fdb729333f0, 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 5222 attached [pid 5216] <... ioctl resumed>) = 0 [pid 5210] <... futex resumed>) = 0 [pid 5079] close(4 [pid 5222] set_robust_list(0x7fdb729339e0, 24 [pid 5219] <... clone resumed>, parent_tid=[5222], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5222 [pid 5219] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5216] close(3 [pid 5210] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] <... close resumed>) = 0 [pid 5222] <... set_robust_list resumed>) = 0 [pid 5219] <... futex resumed>) = 0 [pid 5219] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5216] <... close resumed>) = 0 [pid 5210] <... futex resumed>) = 1 [pid 5079] rmdir("./6/file0" [pid 5222] memfd_create("syzkaller", 0 [pid 5211] <... futex resumed>) = 0 [pid 5079] <... rmdir resumed>) = 0 [pid 5216] mkdir("./file0", 0777 [pid 5211] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5210] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5216] <... mkdir resumed>) = 0 [pid 5211] <... open resumed>) = 4 [pid 5222] <... memfd_create resumed>) = 3 [pid 5079] getdents64(3, [pid 5211] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [ 69.329954][ T5217] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 69.344257][ T5217] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 69.354339][ T5216] loop3: detected capacity change from 0 to 8192 [ 69.362150][ T5217] REISERFS (device loop2): using ordered data mode [ 69.369984][ T5217] reiserfs: using flush barriers [pid 5216] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5222] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5211] <... futex resumed>) = 1 [pid 5210] <... futex resumed>) = 0 [pid 5079] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5222] <... mmap resumed>) = 0x7fdb6a513000 [pid 5211] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5210] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] close(3 [pid 5210] <... futex resumed>) = 0 [pid 5211] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5210] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5079] <... close resumed>) = 0 [pid 5211] ioctl(4, FS_IOC_GETVERSION [pid 5079] rmdir("./6" [pid 5211] <... ioctl resumed>, 0x20000080) = 0 [pid 5211] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] <... rmdir resumed>) = 0 [pid 5211] <... futex resumed>) = 1 [pid 5079] mkdir("./7", 0777 [pid 5210] <... futex resumed>) = 0 [pid 5210] exit_group(0 [pid 5079] <... mkdir resumed>) = 0 [pid 5211] ???() = ? [pid 5210] <... exit_group resumed>) = ? [pid 5220] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5211] +++ exited with 0 +++ [pid 5210] +++ exited with 0 +++ [pid 5078] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5210, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=22 /* 0.22 s */} --- [pid 5079] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5079] ioctl(3, LOOP_CLR_FD [pid 5078] umount2("./7", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5079] close(3 [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5078] openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] <... close resumed>) = 0 [pid 5078] <... openat resumed>) = 3 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5078] fstat(3, [pid 5079] <... clone resumed>, child_tidptr=0x5555571745d0) = 5224 [pid 5078] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5078] umount2("./7/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5078] lstat("./7/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5078] unlink("./7/binderfs") = 0 [pid 5078] umount2("./7/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5224 attached [pid 5224] set_robust_list(0x5555571745e0, 24) = 0 [ 69.386250][ T5217] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 69.404933][ T5217] REISERFS (device loop2): checking transaction log (loop2) [ 69.415297][ T5216] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5224] chdir("./7") = 0 [pid 5224] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5224] setpgid(0, 0) = 0 [pid 5224] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5224] write(3, "1000", 4) = 4 [pid 5224] close(3) = 0 [pid 5224] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5224] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5222] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5224] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5224] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5224] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5225], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5225 [pid 5224] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5224] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5220] <... write resumed>) = 4194304 [ 69.469898][ T5216] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal ./strace-static-x86_64: Process 5225 attached [pid 5225] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5225] memfd_create("syzkaller", 0) = 3 [pid 5225] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [pid 5220] munmap(0x7fdb6a513000, 4194304) = 0 [pid 5220] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5220] ioctl(4, LOOP_SET_FD, 3) = 0 [ 69.523645][ T5216] REISERFS (device loop3): using ordered data mode [ 69.545865][ T5220] loop0: detected capacity change from 0 to 8192 [ 69.559090][ T5216] reiserfs: using flush barriers [pid 5220] close(3) = 0 [pid 5220] mkdir("./file0", 0777) = 0 [pid 5220] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5078] <... umount2 resumed>) = 0 [pid 5078] umount2("./7/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5078] lstat("./7/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] umount2("./7/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5078] openat(AT_FDCWD, "./7/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5078] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5078] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5078] close(4) = 0 [pid 5078] rmdir("./7/file0") = 0 [pid 5078] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [ 69.580950][ T5216] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 69.606978][ T5220] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 69.645935][ T5220] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 69.652245][ T5216] REISERFS (device loop3): checking transaction log (loop3) [ 69.660156][ T5220] REISERFS (device loop0): using ordered data mode [ 69.674241][ T5220] reiserfs: using flush barriers [ 69.680429][ T5220] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5225] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5222] <... write resumed>) = 4194304 [pid 5078] close(3 [pid 5222] munmap(0x7fdb6a513000, 4194304) = 0 [pid 5078] <... close resumed>) = 0 [pid 5222] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5078] rmdir("./7" [pid 5222] <... openat resumed>) = 4 [ 69.681808][ T5217] REISERFS (device loop2): Using r5 hash to sort names [ 69.697006][ T5220] REISERFS (device loop0): checking transaction log (loop0) [ 69.716349][ T5217] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 5222] ioctl(4, LOOP_SET_FD, 3 [pid 5217] <... mount resumed>) = 0 [pid 5078] <... rmdir resumed>) = 0 [pid 5222] <... ioctl resumed>) = 0 [pid 5217] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5078] mkdir("./8", 0777 [pid 5222] close(3 [pid 5217] <... openat resumed>) = 3 [pid 5078] <... mkdir resumed>) = 0 [pid 5222] <... close resumed>) = 0 [pid 5217] chdir("./file0" [pid 5078] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5222] mkdir("./file0", 0777 [pid 5217] <... chdir resumed>) = 0 [pid 5078] <... openat resumed>) = 3 [pid 5222] <... mkdir resumed>) = 0 [pid 5217] ioctl(4, LOOP_CLR_FD [pid 5078] ioctl(3, LOOP_CLR_FD [pid 5222] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5217] <... ioctl resumed>) = 0 [pid 5078] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5217] close(4 [pid 5078] close(3 [pid 5217] <... close resumed>) = 0 [pid 5217] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] <... close resumed>) = 0 [ 69.744084][ T5222] loop1: detected capacity change from 0 to 8192 [pid 5217] <... futex resumed>) = 1 [pid 5215] <... futex resumed>) = 0 [pid 5078] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5225] <... write resumed>) = 4194304 [pid 5217] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5215] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5225] munmap(0x7fdb6a513000, 4194304 [pid 5217] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5215] <... futex resumed>) = 0 [pid 5225] <... munmap resumed>) = 0 [pid 5217] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5215] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5078] <... clone resumed>, child_tidptr=0x5555571745d0) = 5228 [pid 5225] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5217] <... open resumed>) = 4 [pid 5217] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [ 69.789281][ T5222] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5215] <... futex resumed>) = 0 [pid 5217] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5215] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5217] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5215] <... futex resumed>) = 0 [pid 5217] ioctl(4, FS_IOC_GETVERSION [pid 5215] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5217] <... ioctl resumed>, 0x20000080) = 0 [pid 5225] <... openat resumed>) = 4 [pid 5217] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5225] ioctl(4, LOOP_SET_FD, 3 [pid 5217] <... futex resumed>) = 1 [pid 5215] <... futex resumed>) = 0 [pid 5217] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5215] exit_group(0 [pid 5217] <... futex resumed>) = ? [pid 5215] <... exit_group resumed>) = ? [pid 5217] +++ exited with 0 +++ [pid 5215] +++ exited with 0 +++ [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5215, si_uid=0, si_status=0, si_utime=0, si_stime=21 /* 0.21 s */} --- [pid 5076] umount2("./7", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5076] openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5076] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5076] umount2("./7/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5076] lstat("./7/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] unlink("./7/binderfs") = 0 [pid 5076] umount2("./7/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5228 attached [pid 5225] <... ioctl resumed>) = 0 [pid 5228] set_robust_list(0x5555571745e0, 24 [pid 5225] close(3 [pid 5228] <... set_robust_list resumed>) = 0 [pid 5225] <... close resumed>) = 0 [pid 5216] <... mount resumed>) = 0 [pid 5225] mkdir("./file0", 0777 [pid 5216] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5216] chdir("./file0") = 0 [ 69.834897][ T5216] REISERFS (device loop3): Using r5 hash to sort names [ 69.842860][ T5216] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 69.854400][ T5225] loop5: detected capacity change from 0 to 8192 [ 69.857302][ T5222] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [pid 5216] ioctl(4, LOOP_CLR_FD) = 0 [pid 5228] chdir("./8" [pid 5225] <... mkdir resumed>) = 0 [pid 5228] <... chdir resumed>) = 0 [pid 5216] close(4 [pid 5228] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5225] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5228] <... prctl resumed>) = 0 [pid 5216] <... close resumed>) = 0 [ 69.890829][ T5222] REISERFS (device loop1): using ordered data mode [ 69.898666][ T5222] reiserfs: using flush barriers [ 69.903746][ T5220] REISERFS (device loop0): Using r5 hash to sort names [ 69.911297][ T5222] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5228] setpgid(0, 0 [pid 5216] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5214] <... futex resumed>) = 0 [pid 5216] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5214] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5216] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5214] <... futex resumed>) = 0 [pid 5216] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5214] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5228] <... setpgid resumed>) = 0 [pid 5216] <... open resumed>) = 4 [pid 5228] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5216] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5228] <... openat resumed>) = 3 [pid 5216] <... futex resumed>) = 1 [pid 5214] <... futex resumed>) = 0 [pid 5228] write(3, "1000", 4 [pid 5216] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5214] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5228] <... write resumed>) = 4 [pid 5216] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5214] <... futex resumed>) = 0 [pid 5228] close(3 [pid 5216] ioctl(4, FS_IOC_GETVERSION [pid 5214] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5228] <... close resumed>) = 0 [pid 5220] <... mount resumed>) = 0 [pid 5216] <... ioctl resumed>, 0x20000080) = 0 [pid 5076] <... umount2 resumed>) = 0 [pid 5220] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5076] umount2("./7/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5220] <... openat resumed>) = 3 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5220] chdir("./file0" [pid 5076] lstat("./7/file0", [pid 5220] <... chdir resumed>) = 0 [pid 5076] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5220] ioctl(4, LOOP_CLR_FD [pid 5076] umount2("./7/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5220] <... ioctl resumed>) = 0 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5220] close(4 [pid 5076] openat(AT_FDCWD, "./7/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5220] <... close resumed>) = 0 [pid 5076] <... openat resumed>) = 4 [pid 5220] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5076] fstat(4, [pid 5220] <... futex resumed>) = 1 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5220] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5076] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5076] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5076] close(4) = 0 [pid 5076] rmdir("./7/file0") = 0 [pid 5076] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5076] close(3) = 0 [pid 5076] rmdir("./7") = 0 [pid 5076] mkdir("./8", 0777) = 0 [pid 5076] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5076] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5076] close(3) = 0 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5218] <... futex resumed>) = 0 [pid 5216] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5076] <... clone resumed>, child_tidptr=0x5555571745d0) = 5230 [pid 5218] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5228] symlink("/dev/binderfs", "./binderfs" [pid 5220] <... futex resumed>) = 0 [pid 5218] <... futex resumed>) = 1 [pid 5216] <... futex resumed>) = 1 [pid 5214] <... futex resumed>) = 0 [pid 5228] <... symlink resumed>) = 0 [pid 5220] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5218] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5216] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5214] exit_group(0 [pid 5228] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5220] <... open resumed>) = 4 [pid 5214] <... exit_group resumed>) = ? [pid 5220] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5216] <... futex resumed>) = ? [pid 5228] <... futex resumed>) = 0 [pid 5220] <... futex resumed>) = 1 [pid 5220] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5218] <... futex resumed>) = 0 ./strace-static-x86_64: Process 5230 attached [pid 5230] set_robust_list(0x5555571745e0, 24) = 0 [pid 5230] chdir("./8" [pid 5216] +++ exited with 0 +++ [pid 5214] +++ exited with 0 +++ [pid 5228] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5214, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=16 /* 0.16 s */} --- [pid 5218] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5230] <... chdir resumed>) = 0 [pid 5228] <... mmap resumed>) = 0x7fdb72913000 [pid 5220] <... futex resumed>) = 0 [pid 5218] <... futex resumed>) = 1 [pid 5230] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5220] ioctl(4, FS_IOC_GETVERSION [pid 5228] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5218] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5230] <... prctl resumed>) = 0 [pid 5220] <... ioctl resumed>, 0x20000080) = 0 [pid 5228] <... mprotect resumed>) = 0 [pid 5230] setpgid(0, 0 [pid 5220] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5230] <... setpgid resumed>) = 0 [pid 5228] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5220] <... futex resumed>) = 1 [pid 5218] <... futex resumed>) = 0 [pid 5230] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5220] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5218] exit_group(0 [pid 5230] <... openat resumed>) = 3 [ 69.934523][ T5220] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 69.960599][ T5222] REISERFS (device loop1): checking transaction log (loop1) [ 69.963906][ T5225] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5228] <... clone resumed>, parent_tid=[5231], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5231 [pid 5220] <... futex resumed>) = ? [pid 5218] <... exit_group resumed>) = ? [pid 5230] write(3, "1000", 4 [pid 5228] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5220] +++ exited with 0 +++ [pid 5230] <... write resumed>) = 4 [pid 5230] close(3) = 0 [pid 5230] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5218] +++ exited with 0 +++ [pid 5077] umount2("./7", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5228] <... futex resumed>) = 0 [pid 5230] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5228] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5218, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 5230] <... futex resumed>) = 0 [pid 5077] openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5074] restart_syscall(<... resuming interrupted clone ...> [pid 5230] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5077] <... openat resumed>) = 3 [pid 5230] <... mmap resumed>) = 0x7fdb72913000 [pid 5077] fstat(3, [pid 5074] <... restart_syscall resumed>) = 0 [pid 5230] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5230] <... mprotect resumed>) = 0 [pid 5077] getdents64(3, [pid 5230] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5077] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5230] <... clone resumed>, parent_tid=[5232], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5232 [pid 5077] umount2("./7/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] umount2("./7", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5230] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5230] <... futex resumed>) = 0 [pid 5077] lstat("./7/binderfs", [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5230] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] unlink("./7/binderfs" [pid 5074] openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] <... unlink resumed>) = 0 ./strace-static-x86_64: Process 5232 attached [pid 5074] <... openat resumed>) = 3 [pid 5074] fstat(3, [pid 5077] umount2("./7/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5232] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5074] getdents64(3, [pid 5232] memfd_create("syzkaller", 0 [pid 5074] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5232] <... memfd_create resumed>) = 3 [pid 5074] umount2("./7/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5232] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] lstat("./7/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5074] unlink("./7/binderfs") = 0 [pid 5074] umount2("./7/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5231 attached [pid 5231] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5231] memfd_create("syzkaller", 0) = 3 [pid 5231] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [ 70.058024][ T5225] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 70.104220][ T5225] REISERFS (device loop5): using ordered data mode [ 70.126480][ T5225] reiserfs: using flush barriers [pid 5232] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [ 70.153478][ T5225] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 70.170142][ T5222] REISERFS (device loop1): Using r5 hash to sort names [pid 5231] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5074] <... umount2 resumed>) = 0 [pid 5074] umount2("./7/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] lstat("./7/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] umount2("./7/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] openat(AT_FDCWD, "./7/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5074] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] <... umount2 resumed>) = 0 [pid 5074] getdents64(4, [pid 5222] <... mount resumed>) = 0 [pid 5074] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5222] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5074] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5222] <... openat resumed>) = 3 [pid 5074] close(4 [pid 5222] chdir("./file0") = 0 [pid 5074] <... close resumed>) = 0 [pid 5222] ioctl(4, LOOP_CLR_FD [pid 5074] rmdir("./7/file0" [pid 5222] <... ioctl resumed>) = 0 [pid 5222] close(4) = 0 [pid 5222] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5222] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5074] <... rmdir resumed>) = 0 [pid 5219] <... futex resumed>) = 0 [pid 5074] getdents64(3, [pid 5219] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5222] <... futex resumed>) = 0 [pid 5219] <... futex resumed>) = 1 [pid 5074] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [ 70.204236][ T5222] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 70.216678][ T5225] REISERFS (device loop5): checking transaction log (loop5) [pid 5222] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5219] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5222] <... open resumed>) = 4 [pid 5074] close(3 [pid 5222] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5219] <... futex resumed>) = 0 [pid 5074] <... close resumed>) = 0 [pid 5222] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5219] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5074] rmdir("./7" [pid 5222] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5219] <... futex resumed>) = 0 [pid 5077] umount2("./7/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5222] ioctl(4, FS_IOC_GETVERSION, 0x20000080) = 0 [pid 5219] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] <... rmdir resumed>) = 0 [pid 5222] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5219] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5077] lstat("./7/file0", [pid 5074] mkdir("./8", 0777 [pid 5222] <... futex resumed>) = 0 [pid 5219] exit_group(0 [pid 5077] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5222] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5077] umount2("./7/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5222] <... futex resumed>) = ? [pid 5219] <... exit_group resumed>) = ? [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] <... mkdir resumed>) = 0 [pid 5222] +++ exited with 0 +++ [pid 5077] openat(AT_FDCWD, "./7/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5077] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5219] +++ exited with 0 +++ [pid 5077] getdents64(4, [pid 5074] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5077] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5077] getdents64(4, [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5219, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=15 /* 0.15 s */} --- [pid 5074] <... openat resumed>) = 3 [pid 5077] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5075] restart_syscall(<... resuming interrupted clone ...> [pid 5074] ioctl(3, LOOP_CLR_FD [pid 5077] close(4 [pid 5075] <... restart_syscall resumed>) = 0 [pid 5077] <... close resumed>) = 0 [pid 5074] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5077] rmdir("./7/file0" [pid 5074] close(3 [pid 5077] <... rmdir resumed>) = 0 [pid 5075] umount2("./7", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] getdents64(3, [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] <... close resumed>) = 0 [pid 5077] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5075] openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] close(3 [pid 5075] <... openat resumed>) = 3 [pid 5077] <... close resumed>) = 0 [pid 5075] fstat(3, [pid 5077] rmdir("./7" [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] <... rmdir resumed>) = 0 [pid 5075] getdents64(3, [pid 5077] mkdir("./8", 0777 [pid 5075] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5074] <... clone resumed>, child_tidptr=0x5555571745d0) = 5233 [pid 5077] <... mkdir resumed>) = 0 [pid 5075] umount2("./7/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5233 attached [pid 5077] <... openat resumed>) = 3 [pid 5075] lstat("./7/binderfs", [pid 5233] set_robust_list(0x5555571745e0, 24 [pid 5077] ioctl(3, LOOP_CLR_FD [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5233] <... set_robust_list resumed>) = 0 [pid 5077] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5075] unlink("./7/binderfs" [pid 5233] chdir("./8" [pid 5077] close(3 [pid 5075] <... unlink resumed>) = 0 [pid 5233] <... chdir resumed>) = 0 [pid 5232] <... write resumed>) = 4194304 [pid 5231] <... write resumed>) = 4194304 [pid 5077] <... close resumed>) = 0 [pid 5075] umount2("./7/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5233] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5233] <... prctl resumed>) = 0 [pid 5231] munmap(0x7fdb6a513000, 4194304 [pid 5233] setpgid(0, 0 [pid 5231] <... munmap resumed>) = 0 [pid 5077] <... clone resumed>, child_tidptr=0x5555571745d0) = 5234 [pid 5233] <... setpgid resumed>) = 0 [pid 5231] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5233] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5231] <... openat resumed>) = 4 [pid 5233] <... openat resumed>) = 3 [pid 5231] ioctl(4, LOOP_SET_FD, 3 [pid 5233] write(3, "1000", 4) = 4 [pid 5233] close(3) = 0 [pid 5233] symlink("/dev/binderfs", "./binderfs" [pid 5232] munmap(0x7fdb6a513000, 4194304 [pid 5233] <... symlink resumed>) = 0 [pid 5232] <... munmap resumed>) = 0 [pid 5233] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5233] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5232] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5233] <... mmap resumed>) = 0x7fdb72913000 [pid 5232] <... openat resumed>) = 4 ./strace-static-x86_64: Process 5234 attached [pid 5233] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5232] ioctl(4, LOOP_SET_FD, 3 [pid 5234] set_robust_list(0x5555571745e0, 24 [pid 5233] <... mprotect resumed>) = 0 [pid 5231] <... ioctl resumed>) = 0 [pid 5234] <... set_robust_list resumed>) = 0 [pid 5233] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5231] close(3 [pid 5232] <... ioctl resumed>) = 0 [pid 5234] chdir("./8" [pid 5233] <... clone resumed>, parent_tid=[5235], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5235 [pid 5232] close(3 [pid 5234] <... chdir resumed>) = 0 [pid 5233] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5232] <... close resumed>) = 0 [pid 5231] <... close resumed>) = 0 [pid 5234] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5233] <... futex resumed>) = 0 [pid 5232] mkdir("./file0", 0777 [pid 5231] mkdir("./file0", 0777 [pid 5234] <... prctl resumed>) = 0 [pid 5233] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5232] <... mkdir resumed>) = 0 [pid 5231] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 5235 attached [pid 5234] setpgid(0, 0 [pid 5232] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5235] set_robust_list(0x7fdb729339e0, 24 [pid 5234] <... setpgid resumed>) = 0 [pid 5231] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5235] <... set_robust_list resumed>) = 0 [pid 5234] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5235] memfd_create("syzkaller", 0 [pid 5234] <... openat resumed>) = 3 [pid 5235] <... memfd_create resumed>) = 3 [pid 5234] write(3, "1000", 4 [pid 5235] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5234] <... write resumed>) = 4 [pid 5235] <... mmap resumed>) = 0x7fdb6a513000 [ 70.331242][ T5231] loop4: detected capacity change from 0 to 8192 [ 70.344208][ T5232] loop2: detected capacity change from 0 to 8192 [pid 5234] close(3) = 0 [pid 5234] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5234] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5234] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5234] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5234] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5238], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5238 [pid 5234] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5234] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5238 attached [pid 5238] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5238] memfd_create("syzkaller", 0) = 3 [pid 5238] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [ 70.385354][ T5231] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 70.405794][ T5232] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 70.448050][ T5232] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 70.454328][ T5231] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 70.460146][ T5232] REISERFS (device loop2): using ordered data mode [ 70.474822][ T5232] reiserfs: using flush barriers [ 70.481371][ T5232] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5235] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5075] <... umount2 resumed>) = 0 [ 70.498974][ T5232] REISERFS (device loop2): checking transaction log (loop2) [pid 5238] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5075] umount2("./7/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5075] lstat("./7/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] umount2("./7/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5075] openat(AT_FDCWD, "./7/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5075] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5075] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5075] close(4) = 0 [pid 5075] rmdir("./7/file0") = 0 [pid 5075] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5075] close(3) = 0 [pid 5075] rmdir("./7") = 0 [pid 5075] mkdir("./8", 0777) = 0 [pid 5075] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5075] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5075] close(3) = 0 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5239 ./strace-static-x86_64: Process 5239 attached [pid 5239] set_robust_list(0x5555571745e0, 24) = 0 [pid 5239] chdir("./8") = 0 [pid 5239] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [ 70.554040][ T5231] REISERFS (device loop4): using ordered data mode [ 70.563205][ T5225] REISERFS (device loop5): Using r5 hash to sort names [ 70.587366][ T5225] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 70.594187][ T5231] reiserfs: using flush barriers [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 5225] <... mount resumed>) = 0 [pid 5239] close(3) = 0 [pid 5225] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5239] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5225] <... openat resumed>) = 3 [pid 5239] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5239] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5225] chdir("./file0" [pid 5239] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5225] <... chdir resumed>) = 0 [pid 5239] <... mprotect resumed>) = 0 [pid 5239] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5225] ioctl(4, LOOP_CLR_FD) = 0 [pid 5239] <... clone resumed>, parent_tid=[5240], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5240 [pid 5239] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [ 70.639937][ T5231] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5225] close(4 [pid 5239] <... futex resumed>) = 0 [pid 5225] <... close resumed>) = 0 ./strace-static-x86_64: Process 5240 attached [pid 5239] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5238] <... write resumed>) = 4194304 [pid 5240] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5225] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5240] memfd_create("syzkaller", 0) = 3 [pid 5225] <... futex resumed>) = 1 [pid 5224] <... futex resumed>) = 0 [pid 5240] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5225] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5224] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5240] <... mmap resumed>) = 0x7fdb6a513000 [pid 5224] <... futex resumed>) = 0 [pid 5235] <... write resumed>) = 4194304 [pid 5225] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5224] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5225] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5235] munmap(0x7fdb6a513000, 4194304 [pid 5238] munmap(0x7fdb6a513000, 4194304 [pid 5225] <... open resumed>) = 4 [pid 5238] <... munmap resumed>) = 0 [pid 5238] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [ 70.683771][ T5231] REISERFS (device loop4): checking transaction log (loop4) [ 70.693038][ T5232] REISERFS (device loop2): Using r5 hash to sort names [ 70.719836][ T5232] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 5238] ioctl(4, LOOP_SET_FD, 3 [pid 5235] <... munmap resumed>) = 0 [pid 5225] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5235] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5225] <... futex resumed>) = 1 [pid 5224] <... futex resumed>) = 0 [pid 5224] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5235] <... openat resumed>) = 4 [pid 5225] ioctl(4, FS_IOC_GETVERSION [pid 5224] <... futex resumed>) = 0 [pid 5235] ioctl(4, LOOP_SET_FD, 3 [pid 5224] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5225] <... ioctl resumed>, 0x20000080) = 0 [pid 5225] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5224] <... futex resumed>) = 0 [pid 5235] <... ioctl resumed>) = 0 [pid 5225] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5224] exit_group(0 [pid 5235] close(3 [pid 5225] <... futex resumed>) = ? [pid 5224] <... exit_group resumed>) = ? [pid 5225] +++ exited with 0 +++ [pid 5224] +++ exited with 0 +++ [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5224, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 5079] umount2("./7", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5235] <... close resumed>) = 0 [pid 5235] mkdir("./file0", 0777 [pid 5079] fstat(3, [pid 5235] <... mkdir resumed>) = 0 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5232] <... mount resumed>) = 0 [pid 5240] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5238] <... ioctl resumed>) = 0 [pid 5235] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5079] getdents64(3, [pid 5238] close(3 [pid 5079] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5238] <... close resumed>) = 0 [pid 5079] umount2("./7/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5238] mkdir("./file0", 0777 [pid 5232] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5238] <... mkdir resumed>) = 0 [pid 5232] <... openat resumed>) = 3 [pid 5079] lstat("./7/binderfs", [pid 5238] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5232] chdir("./file0" [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [ 70.726338][ T5238] loop3: detected capacity change from 0 to 8192 [ 70.739722][ T5235] loop0: detected capacity change from 0 to 8192 [pid 5079] unlink("./7/binderfs") = 0 [pid 5232] <... chdir resumed>) = 0 [pid 5079] umount2("./7/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5232] ioctl(4, LOOP_CLR_FD) = 0 [ 70.790014][ T5235] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 70.814516][ T5235] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 70.815490][ T5238] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5232] close(4) = 0 [pid 5232] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5230] <... futex resumed>) = 0 [pid 5232] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5230] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5232] <... open resumed>) = 4 [pid 5230] <... futex resumed>) = 0 [pid 5230] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5232] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5230] <... futex resumed>) = 0 [pid 5230] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5230] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5232] ioctl(4, FS_IOC_GETVERSION, 0x20000080) = 0 [pid 5232] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5230] <... futex resumed>) = 0 [pid 5232] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5230] exit_group(0 [pid 5232] <... futex resumed>) = ? [pid 5230] <... exit_group resumed>) = ? [pid 5232] +++ exited with 0 +++ [pid 5230] +++ exited with 0 +++ [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5230, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=15 /* 0.15 s */} --- [pid 5076] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5076] umount2("./8", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5076] openat(AT_FDCWD, "./8", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5076] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5076] umount2("./8/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5076] lstat("./8/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] unlink("./8/binderfs") = 0 [ 70.825826][ T5235] REISERFS (device loop0): using ordered data mode [ 70.843658][ T5235] reiserfs: using flush barriers [ 70.850831][ T5235] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 70.923808][ T5238] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 70.934077][ T5238] REISERFS (device loop3): using ordered data mode [ 70.940710][ T5238] reiserfs: using flush barriers [ 70.948451][ T5238] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 70.982036][ T5238] REISERFS (device loop3): checking transaction log (loop3) [ 70.984274][ T5235] REISERFS (device loop0): checking transaction log (loop0) [ 71.018298][ T5231] REISERFS (device loop4): Using r5 hash to sort names [pid 5076] umount2("./8/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5240] <... write resumed>) = 4194304 [pid 5240] munmap(0x7fdb6a513000, 4194304) = 0 [pid 5240] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5240] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5240] close(3) = 0 [pid 5240] mkdir("./file0", 0777 [pid 5079] <... umount2 resumed>) = 0 [pid 5076] <... umount2 resumed>) = 0 [pid 5240] <... mkdir resumed>) = 0 [ 71.064999][ T5231] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 71.082259][ T5240] loop1: detected capacity change from 0 to 8192 [pid 5240] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5076] umount2("./8/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5076] lstat("./8/file0", [pid 5231] <... mount resumed>) = 0 [pid 5231] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5076] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5231] chdir("./file0") = 0 [pid 5231] ioctl(4, LOOP_CLR_FD) = 0 [pid 5231] close(4) = 0 [pid 5231] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5228] <... futex resumed>) = 0 [pid 5231] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5228] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5231] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5228] <... futex resumed>) = 0 [pid 5231] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5228] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5231] <... open resumed>) = 4 [pid 5231] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5228] <... futex resumed>) = 0 [pid 5231] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5228] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] umount2("./7/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5231] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5228] <... futex resumed>) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] umount2("./8/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5231] ioctl(4, FS_IOC_GETVERSION [pid 5228] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5079] lstat("./7/file0", [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5231] <... ioctl resumed>, 0x20000080) = 0 [pid 5079] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] openat(AT_FDCWD, "./8/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5231] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5228] <... futex resumed>) = 0 [pid 5079] umount2("./7/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... openat resumed>) = 4 [pid 5231] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5228] exit_group(0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5231] <... futex resumed>) = ? [pid 5228] <... exit_group resumed>) = ? [pid 5079] openat(AT_FDCWD, "./7/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5231] +++ exited with 0 +++ [pid 5228] +++ exited with 0 +++ [pid 5079] <... openat resumed>) = 4 [pid 5079] fstat(4, [pid 5078] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5228, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=17 /* 0.17 s */} --- [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [ 71.131934][ T5240] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 71.162903][ T5240] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 71.173653][ T5240] REISERFS (device loop1): using ordered data mode [pid 5078] restart_syscall(<... resuming interrupted clone ...> [pid 5079] getdents64(4, [pid 5078] <... restart_syscall resumed>) = 0 [pid 5076] fstat(4, [pid 5079] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5078] umount2("./8", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] close(4 [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... close resumed>) = 0 [pid 5078] openat(AT_FDCWD, "./8", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] rmdir("./7/file0" [pid 5078] <... openat resumed>) = 3 [pid 5076] getdents64(4, [pid 5079] <... rmdir resumed>) = 0 [pid 5078] fstat(3, [pid 5076] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5079] getdents64(3, [pid 5078] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] getdents64(4, [pid 5079] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5078] getdents64(3, [pid 5076] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5079] close(3 [pid 5078] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5076] close(4 [pid 5079] <... close resumed>) = 0 [pid 5078] umount2("./8/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... close resumed>) = 0 [pid 5079] rmdir("./7" [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] rmdir("./8/file0" [pid 5079] <... rmdir resumed>) = 0 [pid 5078] lstat("./8/binderfs", [pid 5076] <... rmdir resumed>) = 0 [ 71.184006][ T5240] reiserfs: using flush barriers [ 71.194007][ T5240] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 71.203917][ T5238] REISERFS (device loop3): Using r5 hash to sort names [ 71.211034][ T5240] REISERFS (device loop1): checking transaction log (loop1) [pid 5079] mkdir("./8", 0777 [pid 5078] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] getdents64(3, [pid 5079] <... mkdir resumed>) = 0 [pid 5078] unlink("./8/binderfs" [pid 5076] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5079] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5078] <... unlink resumed>) = 0 [pid 5076] close(3 [pid 5238] <... mount resumed>) = 0 [pid 5079] <... openat resumed>) = 3 [pid 5078] umount2("./8/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... close resumed>) = 0 [pid 5238] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5079] ioctl(3, LOOP_CLR_FD [pid 5238] <... openat resumed>) = 3 [pid 5238] chdir("./file0") = 0 [pid 5238] ioctl(4, LOOP_CLR_FD) = 0 [pid 5238] close(4) = 0 [pid 5076] rmdir("./8" [pid 5238] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5238] <... futex resumed>) = 1 [pid 5238] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5234] <... futex resumed>) = 0 [pid 5076] <... rmdir resumed>) = 0 [pid 5079] close(3 [pid 5234] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5076] mkdir("./9", 0777 [pid 5238] <... futex resumed>) = 0 [pid 5234] <... futex resumed>) = 1 [pid 5079] <... close resumed>) = 0 [pid 5238] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5234] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] <... mkdir resumed>) = 0 [pid 5238] <... open resumed>) = 4 [pid 5076] openat(AT_FDCWD, "/dev/loop2", O_RDWR./strace-static-x86_64: Process 5244 attached [pid 5238] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] <... clone resumed>, child_tidptr=0x5555571745d0) = 5244 [pid 5076] <... openat resumed>) = 3 [pid 5244] set_robust_list(0x5555571745e0, 24 [pid 5238] <... futex resumed>) = 1 [pid 5234] <... futex resumed>) = 0 [pid 5076] ioctl(3, LOOP_CLR_FD [pid 5244] <... set_robust_list resumed>) = 0 [pid 5238] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [ 71.239705][ T5238] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [pid 5234] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5076] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5244] chdir("./8" [pid 5238] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5234] <... futex resumed>) = 0 [pid 5076] close(3 [pid 5244] <... chdir resumed>) = 0 [pid 5238] ioctl(4, FS_IOC_GETVERSION [pid 5234] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5244] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5238] <... ioctl resumed>, 0x20000080) = 0 [pid 5076] <... close resumed>) = 0 [pid 5244] <... prctl resumed>) = 0 [pid 5238] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5244] setpgid(0, 0 [pid 5238] <... futex resumed>) = 0 [pid 5244] <... setpgid resumed>) = 0 [pid 5238] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5244] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5244] write(3, "1000", 4) = 4 [pid 5244] close(3) = 0 [pid 5244] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5244] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5244] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5244] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5244] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5245], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5245 [pid 5244] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5244] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5245 attached [pid 5245] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5245] memfd_create("syzkaller", 0 [pid 5234] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5234] exit_group(0 [pid 5245] <... memfd_create resumed>) = 3 [pid 5245] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5238] <... futex resumed>) = ? [pid 5234] <... exit_group resumed>) = ? [pid 5238] +++ exited with 0 +++ [pid 5076] <... clone resumed>, child_tidptr=0x5555571745d0) = 5246 [pid 5245] <... mmap resumed>) = 0x7fdb6a513000 [pid 5234] +++ exited with 0 +++ [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5234, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} --- [pid 5077] umount2("./8", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] openat(AT_FDCWD, "./8", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5077] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5077] umount2("./8/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] lstat("./8/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] unlink("./8/binderfs") = 0 [pid 5077] umount2("./8/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5246 attached [pid 5246] set_robust_list(0x5555571745e0, 24) = 0 [pid 5246] chdir("./9") = 0 [pid 5246] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5246] setpgid(0, 0) = 0 [pid 5246] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5246] write(3, "1000", 4) = 4 [pid 5246] close(3) = 0 [pid 5246] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5246] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5246] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5246] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5246] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5247], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5247 [pid 5246] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5246] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5247 attached [pid 5247] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5247] memfd_create("syzkaller", 0) = 3 [pid 5247] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [ 71.363751][ T5240] REISERFS (device loop1): Using r5 hash to sort names [ 71.401724][ T5240] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [pid 5245] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5240] <... mount resumed>) = 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(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5239] <... futex resumed>) = 0 [pid 5239] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5239] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5240] <... futex resumed>) = 1 [pid 5240] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5247] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5240] <... open resumed>) = 4 [pid 5240] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5239] <... futex resumed>) = 0 [pid 5239] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5239] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5240] <... futex resumed>) = 1 [pid 5240] ioctl(4, FS_IOC_GETVERSION, 0x20000080) = 0 [pid 5240] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5239] <... futex resumed>) = 0 [pid 5240] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5239] exit_group(0 [pid 5240] <... futex resumed>) = ? [pid 5239] <... exit_group resumed>) = ? [pid 5240] +++ exited with 0 +++ [pid 5239] +++ exited with 0 +++ [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5239, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} --- [ 71.427448][ T5235] REISERFS (device loop0): Using r5 hash to sort names [pid 5075] umount2("./8", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5075] openat(AT_FDCWD, "./8", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5075] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5075] umount2("./8/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5075] lstat("./8/binderfs", [pid 5077] <... umount2 resumed>) = 0 [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] unlink("./8/binderfs") = 0 [pid 5075] umount2("./8/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] umount2("./8/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] lstat("./8/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] umount2("./8/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] openat(AT_FDCWD, "./8/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5077] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [ 71.487969][ T5235] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5077] getdents64(4, [pid 5235] <... mount resumed>) = 0 [pid 5078] <... umount2 resumed>) = 0 [pid 5235] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5078] umount2("./8/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5235] <... openat resumed>) = 3 [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5077] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5077] close(4 [pid 5235] chdir("./file0" [pid 5078] lstat("./8/file0", [pid 5077] <... close resumed>) = 0 [pid 5077] rmdir("./8/file0" [pid 5245] <... write resumed>) = 4194304 [pid 5235] <... chdir resumed>) = 0 [pid 5078] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] <... rmdir resumed>) = 0 [pid 5077] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5235] ioctl(4, LOOP_CLR_FD) = 0 [pid 5078] umount2("./8/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] close(3 [pid 5235] close(4 [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... close resumed>) = 0 [pid 5077] rmdir("./8" [pid 5235] <... close resumed>) = 0 [pid 5078] openat(AT_FDCWD, "./8/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] <... rmdir resumed>) = 0 [pid 5077] mkdir("./9", 0777 [pid 5235] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] <... openat resumed>) = 4 [pid 5077] <... mkdir resumed>) = 0 [pid 5077] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5235] <... futex resumed>) = 1 [pid 5233] <... futex resumed>) = 0 [pid 5078] fstat(4, [pid 5077] <... openat resumed>) = 3 [pid 5233] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5077] ioctl(3, LOOP_CLR_FD [pid 5235] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5233] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5078] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5077] close(3) = 0 [pid 5235] <... open resumed>) = 4 [pid 5078] getdents64(4, [pid 5235] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5235] <... futex resumed>) = 1 [pid 5233] <... futex resumed>) = 0 [pid 5078] getdents64(4, [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5235] ioctl(4, FS_IOC_GETVERSION [pid 5233] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5235] <... ioctl resumed>, 0x20000080) = 0 [pid 5233] <... futex resumed>) = 0 [pid 5078] close(4 [pid 5077] <... clone resumed>, child_tidptr=0x5555571745d0) = 5248 [pid 5235] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5233] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5078] <... close resumed>) = 0 [pid 5235] <... futex resumed>) = 0 [pid 5233] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5078] rmdir("./8/file0" [pid 5235] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5233] exit_group(0) = ? [pid 5078] <... rmdir resumed>) = 0 [pid 5235] <... futex resumed>) = ? [pid 5078] getdents64(3, ./strace-static-x86_64: Process 5248 attached [pid 5248] set_robust_list(0x5555571745e0, 24) = 0 [pid 5248] chdir("./9" [pid 5235] +++ exited with 0 +++ [pid 5233] +++ exited with 0 +++ [pid 5078] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5248] <... chdir resumed>) = 0 [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5233, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=17 /* 0.17 s */} --- [pid 5248] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5078] close(3 [pid 5074] restart_syscall(<... resuming interrupted clone ...> [pid 5248] <... prctl resumed>) = 0 [pid 5245] munmap(0x7fdb6a513000, 4194304 [pid 5078] <... close resumed>) = 0 [pid 5074] <... restart_syscall resumed>) = 0 [pid 5248] setpgid(0, 0 [pid 5245] <... munmap resumed>) = 0 [pid 5078] rmdir("./8" [pid 5248] <... setpgid resumed>) = 0 [pid 5245] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5248] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5245] <... openat resumed>) = 4 [pid 5078] <... rmdir resumed>) = 0 [pid 5074] umount2("./8", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5248] <... openat resumed>) = 3 [pid 5245] ioctl(4, LOOP_SET_FD, 3 [pid 5078] mkdir("./9", 0777 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5248] write(3, "1000", 4 [pid 5245] <... ioctl resumed>) = 0 [pid 5078] <... mkdir resumed>) = 0 [pid 5074] openat(AT_FDCWD, "./8", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5248] <... write resumed>) = 4 [pid 5078] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5074] <... openat resumed>) = 3 [pid 5248] close(3 [pid 5078] <... openat resumed>) = 3 [pid 5074] fstat(3, [pid 5248] <... close resumed>) = 0 [pid 5078] ioctl(3, LOOP_CLR_FD [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5248] symlink("/dev/binderfs", "./binderfs" [pid 5078] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5074] getdents64(3, [pid 5248] <... symlink resumed>) = 0 [pid 5247] <... write resumed>) = 4194304 [pid 5074] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5078] close(3 [pid 5248] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] <... close resumed>) = 0 [pid 5074] umount2("./8/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5248] <... futex resumed>) = 0 [pid 5078] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5248] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5074] lstat("./8/binderfs", [pid 5248] <... mmap resumed>) = 0x7fdb72913000 [pid 5074] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5248] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5074] unlink("./8/binderfs" [pid 5248] <... mprotect resumed>) = 0 [pid 5078] <... clone resumed>, child_tidptr=0x5555571745d0) = 5249 [pid 5074] <... unlink resumed>) = 0 [pid 5248] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5074] umount2("./8/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5248] <... clone resumed>, parent_tid=[5250], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5250 [pid 5248] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5248] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5245] close(3) = 0 [pid 5245] mkdir("./file0", 0777 [pid 5247] munmap(0x7fdb6a513000, 4194304 [pid 5245] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 5250 attached [pid 5250] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5250] memfd_create("syzkaller", 0 [pid 5245] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5250] <... memfd_create resumed>) = 3 [pid 5250] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 ./strace-static-x86_64: Process 5249 attached [pid 5247] <... munmap resumed>) = 0 [pid 5249] set_robust_list(0x5555571745e0, 24 [ 71.594689][ T5245] loop5: detected capacity change from 0 to 8192 [pid 5247] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5249] <... set_robust_list resumed>) = 0 [pid 5247] <... openat resumed>) = 4 [pid 5249] chdir("./9" [pid 5247] ioctl(4, LOOP_SET_FD, 3 [pid 5249] <... chdir resumed>) = 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 [pid 5247] <... ioctl resumed>) = 0 [pid 5249] <... openat resumed>) = 3 [pid 5247] close(3) = 0 [ 71.645335][ T5245] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 71.662264][ T5247] loop2: detected capacity change from 0 to 8192 [ 71.675620][ T5245] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 71.685773][ T5245] REISERFS (device loop5): using ordered data mode [pid 5247] mkdir("./file0", 0777 [pid 5249] write(3, "1000", 4 [pid 5247] <... mkdir resumed>) = 0 [pid 5247] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5249] <... write resumed>) = 4 [pid 5249] close(3) = 0 [pid 5075] <... umount2 resumed>) = 0 [pid 5249] symlink("/dev/binderfs", "./binderfs" [pid 5075] umount2("./8/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5249] <... symlink resumed>) = 0 [pid 5075] lstat("./8/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5249] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5075] umount2("./8/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5249] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] openat(AT_FDCWD, "./8/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5249] <... mmap resumed>) = 0x7fdb72913000 [pid 5075] <... openat resumed>) = 4 [pid 5249] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5075] fstat(4, [pid 5249] <... mprotect resumed>) = 0 [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5249] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5075] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5249] <... clone resumed>, parent_tid=[5253], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5253 [pid 5075] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5249] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5075] close(4 [pid 5249] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5075] <... close resumed>) = 0 [pid 5075] rmdir("./8/file0") = 0 [pid 5075] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5075] close(3) = 0 [pid 5075] rmdir("./8") = 0 [pid 5075] mkdir("./9", 0777) = 0 [pid 5075] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5075] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 5253 attached [pid 5253] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5253] memfd_create("syzkaller", 0) = 3 [pid 5253] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [pid 5075] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5075] close(3) = 0 [ 71.692340][ T5245] reiserfs: using flush barriers [ 71.699706][ T5245] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 71.717316][ T1210] ieee802154 phy0 wpan0: encryption failed: -22 [ 71.720061][ T5247] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 71.723924][ T1210] ieee802154 phy1 wpan1: encryption failed: -22 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5254 ./strace-static-x86_64: Process 5254 attached [pid 5254] set_robust_list(0x5555571745e0, 24) = 0 [pid 5254] chdir("./9") = 0 [pid 5254] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5254] setpgid(0, 0) = 0 [pid 5254] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5254] write(3, "1000", 4) = 4 [pid 5254] close(3) = 0 [pid 5254] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5254] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5254] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5254] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5254] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5255], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5255 [pid 5254] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5254] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5255 attached [pid 5250] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5255] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5255] memfd_create("syzkaller", 0) = 3 [ 71.803298][ T5247] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 71.815793][ T5247] REISERFS (device loop2): using ordered data mode [ 71.816036][ T5245] REISERFS (device loop5): checking transaction log (loop5) [ 71.823843][ T5247] reiserfs: using flush barriers [pid 5255] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [ 71.842168][ T5247] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5253] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304) = 4194304 [pid 5253] munmap(0x7fdb6a513000, 4194304) = 0 [pid 5253] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5253] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5253] close(3) = 0 [pid 5253] mkdir("./file0", 0777) = 0 [pid 5253] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5074] <... umount2 resumed>) = 0 [pid 5074] umount2("./8/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] lstat("./8/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] umount2("./8/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] openat(AT_FDCWD, "./8/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5074] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5074] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5074] close(4) = 0 [pid 5074] rmdir("./8/file0") = 0 [ 71.912832][ T5253] loop4: detected capacity change from 0 to 8192 [ 71.927530][ T5253] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 71.942485][ T5247] REISERFS (device loop2): checking transaction log (loop2) [ 71.950999][ T5253] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [pid 5074] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5074] close(3) = 0 [pid 5074] rmdir("./8" [pid 5255] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5074] <... rmdir resumed>) = 0 [pid 5074] mkdir("./9", 0777) = 0 [pid 5074] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5074] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5074] close(3) = 0 [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5257 ./strace-static-x86_64: Process 5257 attached [pid 5257] set_robust_list(0x5555571745e0, 24) = 0 [pid 5257] chdir("./9") = 0 [pid 5257] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5250] <... write resumed>) = 4194304 [pid 5257] <... prctl resumed>) = 0 [ 72.003503][ T5253] REISERFS (device loop4): using ordered data mode [ 72.010557][ T5253] reiserfs: using flush barriers [ 72.017752][ T5253] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 72.034989][ T5253] REISERFS (device loop4): checking transaction log (loop4) [pid 5257] setpgid(0, 0 [pid 5250] munmap(0x7fdb6a513000, 4194304 [pid 5257] <... setpgid resumed>) = 0 [pid 5250] <... munmap resumed>) = 0 [pid 5257] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5250] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5257] <... openat resumed>) = 3 [pid 5250] <... openat resumed>) = 4 [pid 5257] write(3, "1000", 4) = 4 [pid 5257] close(3) = 0 [pid 5257] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5257] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5257] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5250] ioctl(4, LOOP_SET_FD, 3 [pid 5257] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5257] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5250] <... ioctl resumed>) = 0 [pid 5250] close(3 [pid 5257] <... clone resumed>, parent_tid=[5258], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5258 [pid 5257] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5257] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5258 attached [pid 5258] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5258] memfd_create("syzkaller", 0) = 3 [pid 5250] <... close resumed>) = 0 [pid 5258] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5250] mkdir("./file0", 0777 [pid 5258] <... mmap resumed>) = 0x7fdb6a513000 [pid 5250] <... mkdir resumed>) = 0 [pid 5250] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5245] <... mount resumed>) = 0 [ 72.103672][ T5245] REISERFS (device loop5): Using r5 hash to sort names [ 72.115580][ T5250] loop3: detected capacity change from 0 to 8192 [ 72.128321][ T5245] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 5245] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5245] chdir("./file0") = 0 [pid 5245] ioctl(4, LOOP_CLR_FD) = 0 [pid 5245] close(4) = 0 [pid 5245] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5244] <... futex resumed>) = 0 [pid 5245] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5244] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5245] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5245] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5244] <... futex resumed>) = 0 [pid 5245] <... open resumed>) = 4 [pid 5244] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5245] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5244] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5245] <... futex resumed>) = 0 [ 72.170776][ T5250] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 72.188815][ T5250] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 72.197751][ T5247] REISERFS (device loop2): Using r5 hash to sort names [pid 5244] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5255] <... write resumed>) = 4194304 [pid 5245] ioctl(4, FS_IOC_GETVERSION [pid 5244] <... futex resumed>) = 0 [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"..., 4194304 [pid 5255] munmap(0x7fdb6a513000, 4194304 [pid 5245] <... ioctl resumed>, 0x20000080) = 0 [ 72.234793][ T5253] REISERFS (device loop4): Using r5 hash to sort names [ 72.241974][ T5250] REISERFS (device loop3): using ordered data mode [ 72.242134][ T5253] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 72.256379][ T5250] reiserfs: using flush barriers [ 72.263464][ T5247] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 5244] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5255] <... munmap resumed>) = 0 [pid 5247] <... mount resumed>) = 0 [pid 5245] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5244] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5255] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5247] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5245] <... futex resumed>) = 0 [pid 5244] exit_group(0 [pid 5253] <... mount resumed>) = 0 [pid 5255] <... openat resumed>) = 4 [pid 5255] ioctl(4, LOOP_SET_FD, 3 [pid 5253] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5247] <... openat resumed>) = 3 [pid 5244] <... exit_group resumed>) = ? [pid 5253] <... openat resumed>) = 3 [pid 5247] chdir("./file0" [pid 5245] +++ exited with 0 +++ [pid 5244] +++ exited with 0 +++ [pid 5255] <... ioctl resumed>) = 0 [pid 5253] chdir("./file0" [pid 5247] <... chdir resumed>) = 0 [pid 5255] close(3 [pid 5253] <... chdir resumed>) = 0 [pid 5255] <... close resumed>) = 0 [pid 5253] ioctl(4, LOOP_CLR_FD [pid 5247] ioctl(4, LOOP_CLR_FD [pid 5255] mkdir("./file0", 0777 [pid 5253] <... ioctl resumed>) = 0 [pid 5247] <... ioctl resumed>) = 0 [pid 5255] <... mkdir resumed>) = 0 [pid 5253] close(4 [pid 5247] close(4 [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5244, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- [pid 5255] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5253] <... close resumed>) = 0 [pid 5247] <... close resumed>) = 0 [pid 5253] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5247] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5253] <... futex resumed>) = 1 [pid 5249] <... futex resumed>) = 0 [pid 5247] <... futex resumed>) = 1 [pid 5246] <... futex resumed>) = 0 [pid 5253] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5249] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5247] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5079] umount2("./8", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5249] <... futex resumed>) = 0 [pid 5246] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5253] <... open resumed>) = 4 [pid 5249] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5247] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5246] <... futex resumed>) = 0 [pid 5079] openat(AT_FDCWD, "./8", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5247] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5246] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5079] <... openat resumed>) = 3 [pid 5079] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5079] umount2("./8/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] lstat("./8/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] unlink("./8/binderfs") = 0 [pid 5079] umount2("./8/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5253] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5247] <... open resumed>) = 4 [pid 5253] <... futex resumed>) = 1 [pid 5249] <... futex resumed>) = 0 [pid 5247] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5249] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5253] ioctl(4, FS_IOC_GETVERSION [pid 5249] <... futex resumed>) = 0 [pid 5247] <... futex resumed>) = 1 [pid 5246] <... futex resumed>) = 0 [pid 5249] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5253] <... ioctl resumed>, 0x20000080) = 0 [pid 5247] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5246] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5253] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5247] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5246] <... futex resumed>) = 0 [pid 5253] <... futex resumed>) = 1 [pid 5249] <... futex resumed>) = 0 [pid 5247] ioctl(4, FS_IOC_GETVERSION [pid 5246] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5253] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5249] exit_group(0 [pid 5247] <... ioctl resumed>, 0x20000080) = 0 [pid 5253] <... futex resumed>) = ? [pid 5249] <... exit_group resumed>) = ? [pid 5258] <... write resumed>) = 4194304 [pid 5253] +++ exited with 0 +++ [pid 5249] +++ exited with 0 +++ [pid 5247] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5246] <... futex resumed>) = 0 [pid 5078] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5249, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=20 /* 0.20 s */} --- [pid 5258] munmap(0x7fdb6a513000, 4194304 [pid 5247] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [ 72.271166][ T5250] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 72.291166][ T5255] loop1: detected capacity change from 0 to 8192 [ 72.293091][ T5250] REISERFS (device loop3): checking transaction log (loop3) [ 72.317816][ T5255] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5246] exit_group(0 [pid 5258] <... munmap resumed>) = 0 [pid 5247] <... futex resumed>) = ? [pid 5246] <... exit_group resumed>) = ? [pid 5258] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5247] +++ exited with 0 +++ [pid 5246] +++ exited with 0 +++ [pid 5078] umount2("./9", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5258] <... openat resumed>) = 4 [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5246, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} --- [pid 5258] ioctl(4, LOOP_SET_FD, 3 [pid 5078] openat(AT_FDCWD, "./9", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] restart_syscall(<... resuming interrupted clone ...> [pid 5078] <... openat resumed>) = 3 [pid 5076] <... restart_syscall resumed>) = 0 [pid 5258] <... ioctl resumed>) = 0 [pid 5078] fstat(3, [pid 5258] close(3 [pid 5078] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5258] <... close resumed>) = 0 [pid 5078] getdents64(3, [ 72.358696][ T5255] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 72.379097][ T5255] REISERFS (device loop1): using ordered data mode [ 72.384318][ T5258] loop0: detected capacity change from 0 to 8192 [ 72.386165][ T5255] reiserfs: using flush barriers [pid 5076] umount2("./9", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5258] mkdir("./file0", 0777 [pid 5079] <... umount2 resumed>) = 0 [pid 5078] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5258] <... mkdir resumed>) = 0 [pid 5079] umount2("./8/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5078] umount2("./9/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] openat(AT_FDCWD, "./9", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5258] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... openat resumed>) = 3 [pid 5078] lstat("./9/binderfs", [pid 5076] fstat(3, [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5078] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] unlink("./9/binderfs" [pid 5076] getdents64(3, [pid 5079] lstat("./8/file0", [pid 5078] <... unlink resumed>) = 0 [pid 5076] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5078] umount2("./9/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] umount2("./9/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 72.415764][ T5255] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5079] umount2("./8/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] lstat("./9/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] unlink("./9/binderfs") = 0 [pid 5076] umount2("./9/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./8/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5079] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5079] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5079] close(4) = 0 [pid 5079] rmdir("./8/file0") = 0 [ 72.457087][ T5258] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 72.457590][ T5255] REISERFS (device loop1): checking transaction log (loop1) [pid 5079] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5079] close(3) = 0 [pid 5079] rmdir("./8") = 0 [pid 5079] mkdir("./9", 0777) = 0 [pid 5079] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5079] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5079] close(3) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5262 ./strace-static-x86_64: Process 5262 attached [pid 5262] set_robust_list(0x5555571745e0, 24) = 0 [pid 5262] chdir("./9") = 0 [pid 5262] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5262] setpgid(0, 0) = 0 [pid 5262] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5262] write(3, "1000", 4) = 4 [ 72.557654][ T5258] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 72.567847][ T5258] REISERFS (device loop0): using ordered data mode [ 72.579640][ T5258] reiserfs: using flush barriers [ 72.589912][ T5258] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5262] close(3) = 0 [pid 5262] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5262] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5262] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5262] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5262] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5263], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5263 [pid 5262] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5262] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5263 attached [pid 5263] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5255] <... mount resumed>) = 0 [pid 5263] memfd_create("syzkaller", 0) = 3 [pid 5263] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [ 72.606918][ T5258] REISERFS (device loop0): checking transaction log (loop0) [ 72.630355][ T5255] REISERFS (device loop1): Using r5 hash to sort names [ 72.643810][ T5255] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [pid 5255] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5078] <... umount2 resumed>) = 0 [pid 5255] <... openat resumed>) = 3 [pid 5255] chdir("./file0") = 0 [pid 5255] ioctl(4, LOOP_CLR_FD) = 0 [pid 5255] close(4) = 0 [pid 5255] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5254] <... futex resumed>) = 0 [pid 5255] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5254] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] umount2("./9/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5255] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5254] <... futex resumed>) = 0 [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5255] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5254] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5255] <... open resumed>) = 4 [pid 5078] lstat("./9/file0", [pid 5255] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5255] <... futex resumed>) = 1 [pid 5254] <... futex resumed>) = 0 [pid 5078] umount2("./9/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5255] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5254] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5255] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5254] <... futex resumed>) = 0 [pid 5078] openat(AT_FDCWD, "./9/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5255] ioctl(4, FS_IOC_GETVERSION [pid 5254] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5078] <... openat resumed>) = 4 [pid 5255] <... ioctl resumed>, 0x20000080) = 0 [pid 5078] fstat(4, [pid 5255] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5255] <... futex resumed>) = 1 [pid 5254] <... futex resumed>) = 0 [pid 5078] getdents64(4, [pid 5255] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5254] exit_group(0 [pid 5078] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5255] <... futex resumed>) = ? [pid 5254] <... exit_group resumed>) = ? [pid 5078] getdents64(4, [pid 5255] +++ exited with 0 +++ [pid 5254] +++ exited with 0 +++ [pid 5078] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5078] close(4 [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5254, si_uid=0, si_status=0, si_utime=0, si_stime=23 /* 0.23 s */} --- [pid 5078] <... close resumed>) = 0 [pid 5078] rmdir("./9/file0" [pid 5075] umount2("./9", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5075] openat(AT_FDCWD, "./9", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5078] <... rmdir resumed>) = 0 [pid 5075] <... openat resumed>) = 3 [pid 5075] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5075] umount2("./9/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5075] lstat("./9/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] unlink("./9/binderfs") = 0 [pid 5075] umount2("./9/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... umount2 resumed>) = 0 [pid 5076] umount2("./9/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5076] lstat("./9/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] umount2("./9/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5076] openat(AT_FDCWD, "./9/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5076] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5076] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5076] close(4) = 0 [pid 5076] rmdir("./9/file0" [pid 5078] getdents64(3, [pid 5076] <... rmdir resumed>) = 0 [pid 5076] getdents64(3, [pid 5263] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5258] <... mount resumed>) = 0 [pid 5250] <... mount resumed>) = 0 [pid 5078] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5076] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5258] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5250] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5078] close(3 [pid 5258] <... openat resumed>) = 3 [pid 5250] <... openat resumed>) = 3 [pid 5078] <... close resumed>) = 0 [pid 5076] close(3 [pid 5258] chdir("./file0" [pid 5250] chdir("./file0" [pid 5078] rmdir("./9" [pid 5258] <... chdir resumed>) = 0 [pid 5250] <... chdir resumed>) = 0 [pid 5078] <... rmdir resumed>) = 0 [pid 5076] <... close resumed>) = 0 [pid 5258] ioctl(4, LOOP_CLR_FD [pid 5250] ioctl(4, LOOP_CLR_FD [pid 5078] mkdir("./10", 0777 [pid 5258] <... ioctl resumed>) = 0 [pid 5250] <... ioctl resumed>) = 0 [pid 5078] <... mkdir resumed>) = 0 [pid 5076] rmdir("./9" [pid 5258] close(4 [pid 5250] close(4 [pid 5078] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5258] <... close resumed>) = 0 [pid 5250] <... close resumed>) = 0 [pid 5078] <... openat resumed>) = 3 [pid 5076] <... rmdir resumed>) = 0 [pid 5258] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5250] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] ioctl(3, LOOP_CLR_FD [pid 5258] <... futex resumed>) = 1 [pid 5257] <... futex resumed>) = 0 [pid 5250] <... futex resumed>) = 1 [pid 5078] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5258] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5257] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5250] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5078] close(3 [pid 5258] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5257] <... futex resumed>) = 0 [pid 5078] <... close resumed>) = 0 [pid 5258] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5257] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5078] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5258] <... open resumed>) = 4 [pid 5248] <... futex resumed>) = 0 [pid 5076] mkdir("./10", 0777 [pid 5258] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] <... clone resumed>, child_tidptr=0x5555571745d0) = 5264 [pid 5258] <... futex resumed>) = 1 [pid 5257] <... futex resumed>) = 0 [pid 5258] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5257] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5248] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5076] <... mkdir resumed>) = 0 [pid 5258] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5257] <... futex resumed>) = 0 [pid 5258] ioctl(4, FS_IOC_GETVERSION [pid 5257] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5250] <... futex resumed>) = 0 [pid 5248] <... futex resumed>) = 1 [pid 5258] <... ioctl resumed>, 0x20000080) = 0 [pid 5250] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5258] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5250] <... open resumed>) = 4 [pid 5248] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5076] openat(AT_FDCWD, "/dev/loop2", O_RDWR./strace-static-x86_64: Process 5264 attached [pid 5258] <... futex resumed>) = 1 [ 72.776776][ T5258] REISERFS (device loop0): Using r5 hash to sort names [ 72.785353][ T5258] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 72.794730][ T5250] REISERFS (device loop3): Using r5 hash to sort names [ 72.801917][ T5250] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [pid 5257] <... futex resumed>) = 0 [pid 5250] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5248] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5264] set_robust_list(0x5555571745e0, 24 [pid 5258] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5257] exit_group(0 [pid 5250] <... futex resumed>) = 0 [pid 5248] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5076] <... openat resumed>) = 3 [pid 5264] <... set_robust_list resumed>) = 0 [pid 5258] <... futex resumed>) = ? [pid 5257] <... exit_group resumed>) = ? [pid 5250] ioctl(4, FS_IOC_GETVERSION [pid 5248] <... futex resumed>) = 0 [pid 5264] chdir("./10" [pid 5258] +++ exited with 0 +++ [pid 5257] +++ exited with 0 +++ [pid 5250] <... ioctl resumed>, 0x20000080) = 0 [pid 5248] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5076] ioctl(3, LOOP_CLR_FD [pid 5264] <... chdir resumed>) = 0 [pid 5250] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5248] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5076] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5264] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5250] <... futex resumed>) = 0 [pid 5248] exit_group(0 [pid 5264] <... prctl resumed>) = 0 [pid 5248] <... exit_group resumed>) = ? [pid 5076] close(3 [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5257, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- [pid 5264] setpgid(0, 0 [pid 5250] +++ exited with 0 +++ [pid 5248] +++ exited with 0 +++ [pid 5076] <... close resumed>) = 0 [pid 5074] restart_syscall(<... resuming interrupted clone ...> [pid 5264] <... setpgid resumed>) = 0 [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5248, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=19 /* 0.19 s */} --- [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5074] <... restart_syscall resumed>) = 0 [pid 5264] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5264] write(3, "1000", 4) = 4 [pid 5264] close(3) = 0 [pid 5264] symlink("/dev/binderfs", "./binderfs" [pid 5076] <... clone resumed>, child_tidptr=0x5555571745d0) = 5265 [pid 5264] <... symlink resumed>) = 0 [pid 5264] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5077] umount2("./9", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5264] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] umount2("./9", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5264] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5077] openat(AT_FDCWD, "./9", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5264] <... mprotect resumed>) = 0 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5264] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5077] <... openat resumed>) = 3 [pid 5074] openat(AT_FDCWD, "./9", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5264] <... clone resumed>, parent_tid=[5266], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5266 [pid 5077] fstat(3, [pid 5264] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5074] <... openat resumed>) = 3 [pid 5264] <... futex resumed>) = 0 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] fstat(3, [pid 5264] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5077] getdents64(3, [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5074] getdents64(3, ./strace-static-x86_64: Process 5265 attached ./strace-static-x86_64: Process 5266 attached [pid 5266] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5266] memfd_create("syzkaller", 0 [pid 5077] umount2("./9/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5265] set_robust_list(0x5555571745e0, 24 [pid 5266] <... memfd_create resumed>) = 3 [pid 5265] <... set_robust_list resumed>) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] umount2("./9/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5266] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [pid 5265] chdir("./10" [pid 5077] lstat("./9/binderfs", [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5265] <... chdir resumed>) = 0 [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5074] lstat("./9/binderfs", [pid 5265] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5077] unlink("./9/binderfs" [pid 5074] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5265] <... prctl resumed>) = 0 [pid 5077] <... unlink resumed>) = 0 [pid 5074] unlink("./9/binderfs" [pid 5265] setpgid(0, 0 [pid 5077] umount2("./9/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5265] <... setpgid resumed>) = 0 [pid 5074] <... unlink resumed>) = 0 [pid 5265] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5074] umount2("./9/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5265] <... openat resumed>) = 3 [pid 5265] write(3, "1000", 4) = 4 [pid 5265] close(3) = 0 [pid 5265] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5265] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5265] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5265] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5265] clone(child_stack=0x7fdb729333f0, 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=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5267 [pid 5265] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5265] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5263] <... write resumed>) = 4194304 ./strace-static-x86_64: Process 5267 attached [pid 5267] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5267] memfd_create("syzkaller", 0 [pid 5263] munmap(0x7fdb6a513000, 4194304 [pid 5267] <... memfd_create resumed>) = 3 [pid 5263] <... munmap resumed>) = 0 [pid 5267] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [pid 5263] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 5263] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5263] close(3) = 0 [pid 5263] mkdir("./file0", 0777) = 0 [pid 5263] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5075] <... umount2 resumed>) = 0 [pid 5075] umount2("./9/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] <... umount2 resumed>) = 0 [pid 5075] lstat("./9/file0", [pid 5074] umount2("./9/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] umount2("./9/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5075] openat(AT_FDCWD, "./9/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5075] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5075] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5075] close(4) = 0 [pid 5075] rmdir("./9/file0") = 0 [ 72.956142][ T5263] loop5: detected capacity change from 0 to 8192 [ 72.992422][ T5263] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5075] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] close(3 [pid 5074] lstat("./9/file0", [pid 5075] <... close resumed>) = 0 [pid 5074] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] rmdir("./9" [pid 5074] umount2("./9/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... rmdir resumed>) = 0 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] mkdir("./10", 0777 [pid 5074] openat(AT_FDCWD, "./9/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] <... mkdir resumed>) = 0 [pid 5074] <... openat resumed>) = 4 [pid 5075] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5074] fstat(4, [pid 5075] <... openat resumed>) = 3 [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] <... umount2 resumed>) = 0 [pid 5075] ioctl(3, LOOP_CLR_FD [pid 5074] getdents64(4, [pid 5266] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5077] umount2("./9/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5074] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5075] close(3 [pid 5074] getdents64(4, [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... close resumed>) = 0 [pid 5074] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5074] close(4 [pid 5077] lstat("./9/file0", [pid 5074] <... close resumed>) = 0 [pid 5075] <... clone resumed>, child_tidptr=0x5555571745d0) = 5269 [pid 5074] rmdir("./9/file0") = 0 [pid 5074] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5074] close(3) = 0 [pid 5074] rmdir("./9") = 0 [pid 5074] mkdir("./10", 0777) = 0 ./strace-static-x86_64: Process 5269 attached [pid 5077] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5269] set_robust_list(0x5555571745e0, 24 [pid 5074] <... openat resumed>) = 3 [pid 5269] <... set_robust_list resumed>) = 0 [pid 5074] ioctl(3, LOOP_CLR_FD [pid 5269] chdir("./10" [pid 5074] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5269] <... chdir resumed>) = 0 [pid 5077] umount2("./9/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] close(3 [pid 5269] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] <... close resumed>) = 0 [pid 5269] <... prctl resumed>) = 0 [pid 5077] openat(AT_FDCWD, "./9/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5269] setpgid(0, 0 [pid 5077] <... openat resumed>) = 4 [pid 5269] <... setpgid resumed>) = 0 [pid 5077] fstat(4, [pid 5074] <... clone resumed>, child_tidptr=0x5555571745d0) = 5270 [pid 5269] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5269] write(3, "1000", 4 [pid 5077] getdents64(4, [pid 5269] <... write resumed>) = 4 [pid 5269] close(3 [pid 5077] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5269] <... close resumed>) = 0 [pid 5077] getdents64(4, [pid 5269] symlink("/dev/binderfs", "./binderfs" [pid 5077] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5269] <... symlink resumed>) = 0 [pid 5077] close(4 [pid 5269] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [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"..., 4194304 [pid 5077] <... close resumed>) = 0 [pid 5269] <... futex resumed>) = 0 [pid 5077] rmdir("./9/file0" [pid 5269] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5077] <... rmdir resumed>) = 0 ./strace-static-x86_64: Process 5270 attached [pid 5269] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5077] getdents64(3, [pid 5269] <... mprotect resumed>) = 0 [pid 5077] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5270] set_robust_list(0x5555571745e0, 24 [pid 5269] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5077] close(3 [pid 5270] <... set_robust_list resumed>) = 0 [pid 5077] <... close resumed>) = 0 [pid 5269] <... clone resumed>, parent_tid=[5271], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5271 [pid 5077] rmdir("./9" [pid 5270] chdir("./10" [pid 5269] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5270] <... chdir resumed>) = 0 [pid 5269] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5077] <... rmdir resumed>) = 0 [ 73.091336][ T5263] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [pid 5270] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 5271 attached ) = 0 [pid 5077] mkdir("./10", 0777 [pid 5271] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5271] memfd_create("syzkaller", 0) = 3 [pid 5270] setpgid(0, 0 [pid 5271] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5270] <... setpgid resumed>) = 0 [pid 5077] <... mkdir resumed>) = 0 [pid 5271] <... mmap resumed>) = 0x7fdb6a513000 [pid 5270] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5077] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5270] <... openat resumed>) = 3 [pid 5077] <... openat resumed>) = 3 [pid 5270] write(3, "1000", 4 [pid 5077] ioctl(3, LOOP_CLR_FD [pid 5270] <... write resumed>) = 4 [pid 5077] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5270] close(3 [pid 5077] close(3 [pid 5270] <... close resumed>) = 0 [pid 5077] <... close resumed>) = 0 [pid 5270] symlink("/dev/binderfs", "./binderfs" [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5270] <... symlink resumed>) = 0 [pid 5077] <... clone resumed>, child_tidptr=0x5555571745d0) = 5272 [pid 5270] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5270] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5270] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5270] clone(child_stack=0x7fdb729333f0, 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=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5273 [pid 5270] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 73.150383][ T5263] REISERFS (device loop5): using ordered data mode [pid 5270] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5266] <... write resumed>) = 4194304 ./strace-static-x86_64: Process 5272 attached [pid 5272] set_robust_list(0x5555571745e0, 24) = 0 [pid 5272] chdir("./10" [pid 5266] munmap(0x7fdb6a513000, 4194304) = 0 ./strace-static-x86_64: Process 5273 attached [pid 5272] <... chdir resumed>) = 0 [pid 5266] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5273] set_robust_list(0x7fdb729339e0, 24 [pid 5272] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5266] <... openat resumed>) = 4 [pid 5273] <... set_robust_list resumed>) = 0 [pid 5272] <... prctl resumed>) = 0 [pid 5266] ioctl(4, LOOP_SET_FD, 3 [pid 5273] memfd_create("syzkaller", 0 [pid 5272] setpgid(0, 0 [pid 5273] <... memfd_create resumed>) = 3 [pid 5272] <... setpgid resumed>) = 0 [pid 5273] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5272] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5273] <... mmap resumed>) = 0x7fdb6a513000 [pid 5272] <... openat resumed>) = 3 [pid 5272] write(3, "1000", 4) = 4 [pid 5272] close(3) = 0 [pid 5272] symlink("/dev/binderfs", "./binderfs") = 0 [ 73.198476][ T5263] reiserfs: using flush barriers [ 73.212140][ T5266] loop4: detected capacity change from 0 to 8192 [ 73.219071][ T5263] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5272] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5271] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5267] <... write resumed>) = 4194304 [pid 5272] <... futex resumed>) = 0 [pid 5272] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5272] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5272] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5274], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5274 [pid 5272] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5266] <... ioctl resumed>) = 0 ./strace-static-x86_64: Process 5274 attached [pid 5272] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5267] munmap(0x7fdb6a513000, 4194304 [pid 5266] close(3) = 0 [pid 5266] mkdir("./file0", 0777) = 0 [pid 5266] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5274] set_robust_list(0x7fdb729339e0, 24 [pid 5267] <... munmap resumed>) = 0 [pid 5267] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5274] <... set_robust_list resumed>) = 0 [pid 5267] <... openat resumed>) = 4 [pid 5274] memfd_create("syzkaller", 0 [pid 5267] ioctl(4, LOOP_SET_FD, 3 [pid 5274] <... memfd_create resumed>) = 3 [pid 5274] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [pid 5267] <... ioctl resumed>) = 0 [pid 5267] close(3) = 0 [pid 5267] mkdir("./file0", 0777) = 0 [ 73.251545][ T5263] REISERFS (device loop5): checking transaction log (loop5) [ 73.268418][ T5267] loop2: detected capacity change from 0 to 8192 [pid 5267] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5274] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [ 73.294233][ T5266] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5273] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5274] <... write resumed>) = 4194304 [pid 5274] munmap(0x7fdb6a513000, 4194304) = 0 [pid 5274] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [ 73.343268][ T5267] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 73.354950][ T5266] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 73.363266][ T5267] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 73.376511][ T5267] REISERFS (device loop2): using ordered data mode [pid 5274] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5271] <... write resumed>) = 4194304 [pid 5271] munmap(0x7fdb6a513000, 4194304 [pid 5274] close(3) = 0 [pid 5271] <... munmap resumed>) = 0 [pid 5274] mkdir("./file0", 0777) = 0 [pid 5274] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5271] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [ 73.396442][ T5274] loop3: detected capacity change from 0 to 8192 [ 73.397730][ T5267] reiserfs: using flush barriers [ 73.410595][ T5267] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 73.427061][ T5266] REISERFS (device loop4): using ordered data mode [ 73.433740][ T5266] reiserfs: using flush barriers [ 73.436570][ T5271] loop1: detected capacity change from 0 to 8192 [pid 5271] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5271] close(3 [pid 5273] <... write resumed>) = 4194304 [pid 5271] <... close resumed>) = 0 [pid 5271] mkdir("./file0", 0777) = 0 [ 73.445650][ T5266] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 73.448276][ T5274] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 73.473896][ T5266] REISERFS (device loop4): checking transaction log (loop4) [pid 5271] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5273] munmap(0x7fdb6a513000, 4194304) = 0 [pid 5273] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [ 73.499698][ T5271] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 73.527965][ T5271] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 73.533801][ T5267] REISERFS (device loop2): checking transaction log (loop2) [pid 5273] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5263] <... mount resumed>) = 0 [ 73.538045][ T5271] REISERFS (device loop1): using ordered data mode [ 73.545731][ T5273] loop0: detected capacity change from 0 to 8192 [ 73.551503][ T5263] REISERFS (device loop5): Using r5 hash to sort names [ 73.564479][ T5271] reiserfs: using flush barriers [ 73.570636][ T5271] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 73.587112][ T5263] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 5273] close(3) = 0 [pid 5273] mkdir("./file0", 0777) = 0 [pid 5263] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5273] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5263] <... openat resumed>) = 3 [pid 5263] chdir("./file0") = 0 [pid 5263] ioctl(4, LOOP_CLR_FD) = 0 [ 73.597046][ T5271] REISERFS (device loop1): checking transaction log (loop1) [pid 5263] close(4) = 0 [pid 5263] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5262] <... futex resumed>) = 0 [pid 5263] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5262] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5263] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5262] <... futex resumed>) = 0 [pid 5263] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 5262] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5263] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5263] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5262] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5262] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5263] <... futex resumed>) = 0 [pid 5262] <... futex resumed>) = 1 [pid 5263] ioctl(4, FS_IOC_GETVERSION, 0x20000080) = 0 [pid 5263] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5263] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5262] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5262] exit_group(0 [pid 5263] <... futex resumed>) = ? [pid 5262] <... exit_group resumed>) = ? [pid 5263] +++ exited with 0 +++ [pid 5262] +++ exited with 0 +++ [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5262, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=19 /* 0.19 s */} --- [pid 5079] umount2("./9", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 73.636075][ T5273] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 73.657641][ T5274] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 73.668488][ T5274] REISERFS (device loop3): using ordered data mode [ 73.677024][ T5274] reiserfs: using flush barriers [pid 5079] openat(AT_FDCWD, "./9", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5079] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5079] umount2("./9/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] lstat("./9/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] unlink("./9/binderfs") = 0 [ 73.692433][ T5274] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 73.723793][ T5273] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 73.733021][ T5273] REISERFS (device loop0): using ordered data mode [ 73.742638][ T5274] REISERFS (device loop3): checking transaction log (loop3) [ 73.753781][ T5273] reiserfs: using flush barriers [ 73.765975][ T5273] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5079] umount2("./9/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5266] <... mount resumed>) = 0 [pid 5266] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5266] chdir("./file0") = 0 [pid 5266] ioctl(4, LOOP_CLR_FD) = 0 [pid 5266] close(4) = 0 [pid 5266] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5264] <... futex resumed>) = 0 [pid 5264] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5264] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5266] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 5266] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5266] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5264] <... futex resumed>) = 0 [pid 5264] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5266] <... futex resumed>) = 0 [pid 5264] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5266] ioctl(4, FS_IOC_GETVERSION, 0x20000080) = 0 [pid 5266] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5264] <... futex resumed>) = 0 [pid 5266] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5264] exit_group(0 [pid 5266] <... futex resumed>) = ? [pid 5264] <... exit_group resumed>) = ? [pid 5266] +++ exited with 0 +++ [pid 5264] +++ exited with 0 +++ [pid 5078] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5264, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} --- [pid 5078] restart_syscall(<... resuming interrupted clone ...>) = 0 [ 73.797637][ T5266] REISERFS (device loop4): Using r5 hash to sort names [ 73.806560][ T5266] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [pid 5078] umount2("./10", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5078] openat(AT_FDCWD, "./10", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5078] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5078] umount2("./10/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5078] lstat("./10/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5078] unlink("./10/binderfs") = 0 [ 73.878472][ T5273] REISERFS (device loop0): checking transaction log (loop0) [ 73.888385][ T5271] REISERFS (device loop1): Using r5 hash to sort names [ 73.919509][ T5271] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 73.944712][ T5267] REISERFS (device loop2): Using r5 hash to sort names [pid 5078] umount2("./10/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5271] <... mount resumed>) = 0 [pid 5271] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5271] chdir("./file0") = 0 [pid 5271] ioctl(4, LOOP_CLR_FD) = 0 [pid 5271] close(4 [pid 5267] <... mount resumed>) = 0 [pid 5079] <... umount2 resumed>) = 0 [pid 5271] <... close resumed>) = 0 [pid 5271] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5269] <... futex resumed>) = 0 [pid 5271] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5269] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5271] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5269] <... futex resumed>) = 0 [pid 5271] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5269] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5267] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5079] umount2("./9/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5271] <... open resumed>) = 4 [pid 5267] <... openat resumed>) = 3 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5271] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5267] chdir("./file0" [pid 5079] lstat("./9/file0", [pid 5271] <... futex resumed>) = 1 [pid 5269] <... futex resumed>) = 0 [pid 5267] <... chdir resumed>) = 0 [pid 5271] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5269] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5267] ioctl(4, LOOP_CLR_FD [pid 5079] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5271] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [ 73.966110][ T5267] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 5269] <... futex resumed>) = 0 [pid 5267] <... ioctl resumed>) = 0 [pid 5079] umount2("./9/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5271] ioctl(4, FS_IOC_GETVERSION [pid 5269] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5267] close(4 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5271] <... ioctl resumed>, 0x20000080) = 0 [pid 5267] <... close resumed>) = 0 [pid 5079] openat(AT_FDCWD, "./9/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5271] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] <... openat resumed>) = 4 [pid 5271] <... futex resumed>) = 1 [pid 5269] <... futex resumed>) = 0 [pid 5267] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] fstat(4, [pid 5271] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5269] exit_group(0 [pid 5267] <... futex resumed>) = 1 [pid 5265] <... futex resumed>) = 0 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5271] <... futex resumed>) = ? [pid 5269] <... exit_group resumed>) = ? [pid 5267] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5265] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] getdents64(4, [pid 5271] +++ exited with 0 +++ [pid 5269] +++ exited with 0 +++ [pid 5267] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5265] <... futex resumed>) = 0 [ 74.032123][ T5274] REISERFS (device loop3): Using r5 hash to sort names [pid 5079] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5265] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5269, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} --- [pid 5075] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5075] umount2("./10", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5267] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5079] getdents64(4, [pid 5075] openat(AT_FDCWD, "./10", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5075] <... openat resumed>) = 3 [pid 5274] <... mount resumed>) = 0 [pid 5267] <... open resumed>) = 4 [pid 5079] close(4 [pid 5075] fstat(3, [pid 5274] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5267] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] <... close resumed>) = 0 [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5274] <... openat resumed>) = 3 [pid 5267] <... futex resumed>) = 1 [pid 5265] <... futex resumed>) = 0 [pid 5079] rmdir("./9/file0" [pid 5075] getdents64(3, [pid 5274] chdir("./file0" [pid 5267] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5265] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] <... rmdir resumed>) = 0 [pid 5075] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5274] <... chdir resumed>) = 0 [pid 5267] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5265] <... futex resumed>) = 0 [pid 5079] getdents64(3, [pid 5075] umount2("./10/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5274] ioctl(4, LOOP_CLR_FD [pid 5267] ioctl(4, FS_IOC_GETVERSION [pid 5265] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5079] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5274] <... ioctl resumed>) = 0 [pid 5267] <... ioctl resumed>, 0x20000080) = 0 [pid 5079] close(3 [pid 5075] lstat("./10/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5274] close(4 [pid 5267] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] <... close resumed>) = 0 [pid 5075] unlink("./10/binderfs" [pid 5274] <... close resumed>) = 0 [pid 5267] <... futex resumed>) = 1 [pid 5265] <... futex resumed>) = 0 [pid 5075] <... unlink resumed>) = 0 [pid 5075] umount2("./10/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5078] <... umount2 resumed>) = 0 [pid 5078] umount2("./10/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5078] lstat("./10/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] umount2("./10/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5078] openat(AT_FDCWD, "./10/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5078] fstat(4, [pid 5274] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5267] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5265] exit_group(0 [pid 5079] rmdir("./9" [pid 5265] <... exit_group resumed>) = ? [pid 5267] <... futex resumed>) = ? [pid 5079] <... rmdir resumed>) = 0 [pid 5274] <... futex resumed>) = 1 [pid 5272] <... futex resumed>) = 0 [pid 5078] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5078] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5267] +++ exited with 0 +++ [pid 5265] +++ exited with 0 +++ [pid 5272] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5274] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5079] mkdir("./10", 0777 [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5265, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=18 /* 0.18 s */} --- [pid 5076] restart_syscall(<... resuming interrupted clone ...> [pid 5272] <... futex resumed>) = 0 [pid 5076] <... restart_syscall resumed>) = 0 [pid 5274] <... open resumed>) = 4 [pid 5272] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5079] <... mkdir resumed>) = 0 [pid 5274] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5076] umount2("./10", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5274] <... futex resumed>) = 1 [pid 5272] <... futex resumed>) = 0 [pid 5079] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5078] close(4 [pid 5274] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5272] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] <... openat resumed>) = 3 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5274] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [ 74.073758][ T5274] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [pid 5272] <... futex resumed>) = 0 [pid 5079] ioctl(3, LOOP_CLR_FD [pid 5274] ioctl(4, FS_IOC_GETVERSION [pid 5272] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5079] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5078] <... close resumed>) = 0 [pid 5076] openat(AT_FDCWD, "./10", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5274] <... ioctl resumed>, 0x20000080) = 0 [pid 5079] close(3 [pid 5274] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] <... close resumed>) = 0 [pid 5078] rmdir("./10/file0" [pid 5076] <... openat resumed>) = 3 [pid 5274] <... futex resumed>) = 1 [pid 5272] <... futex resumed>) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5274] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5272] exit_group(0 [pid 5078] <... rmdir resumed>) = 0 [pid 5274] <... futex resumed>) = ? [pid 5272] <... exit_group resumed>) = ? [pid 5079] <... clone resumed>, child_tidptr=0x5555571745d0) = 5280 [pid 5274] +++ exited with 0 +++ [pid 5272] +++ exited with 0 +++ [pid 5078] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5078] close(3) = 0 [pid 5078] rmdir("./10") = 0 [pid 5076] fstat(3, [pid 5078] mkdir("./11", 0777 [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5272, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=11 /* 0.11 s */} --- [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] <... mkdir resumed>) = 0 [pid 5077] restart_syscall(<... resuming interrupted clone ...> [pid 5078] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5076] getdents64(3, [pid 5077] <... restart_syscall resumed>) = 0 [pid 5078] <... openat resumed>) = 3 [pid 5076] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 ./strace-static-x86_64: Process 5280 attached [pid 5280] set_robust_list(0x5555571745e0, 24 [pid 5078] ioctl(3, LOOP_CLR_FD [pid 5076] umount2("./10/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5280] <... set_robust_list resumed>) = 0 [pid 5078] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5077] umount2("./10", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5280] chdir("./10" [pid 5078] close(3 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5280] <... chdir resumed>) = 0 [pid 5078] <... close resumed>) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5280] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5078] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] lstat("./10/binderfs", [pid 5280] <... prctl resumed>) = 0 [pid 5077] openat(AT_FDCWD, "./10", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5280] setpgid(0, 0 [pid 5078] <... clone resumed>, child_tidptr=0x5555571745d0) = 5281 [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5280] <... setpgid resumed>) = 0 [pid 5077] <... openat resumed>) = 3 [pid 5076] unlink("./10/binderfs" [pid 5280] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5077] fstat(3, [pid 5280] <... openat resumed>) = 3 [pid 5076] <... unlink resumed>) = 0 [pid 5280] write(3, "1000", 4 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5280] <... write resumed>) = 4 [pid 5076] umount2("./10/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5280] close(3) = 0 ./strace-static-x86_64: Process 5281 attached [pid 5280] symlink("/dev/binderfs", "./binderfs" [pid 5281] set_robust_list(0x5555571745e0, 24 [pid 5280] <... symlink resumed>) = 0 [pid 5281] <... set_robust_list resumed>) = 0 [pid 5280] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5281] chdir("./11" [pid 5280] <... futex resumed>) = 0 [pid 5281] <... chdir resumed>) = 0 [pid 5280] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5281] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5280] <... mmap resumed>) = 0x7fdb72913000 [pid 5281] <... prctl resumed>) = 0 [pid 5280] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5281] setpgid(0, 0 [pid 5280] <... mprotect resumed>) = 0 [pid 5281] <... setpgid resumed>) = 0 [pid 5280] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5281] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5280] <... clone resumed>, parent_tid=[5282], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5282 [pid 5281] write(3, "1000", 4 [pid 5280] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] getdents64(3, [pid 5281] <... write resumed>) = 4 [pid 5280] <... futex resumed>) = 0 [pid 5281] close(3 [pid 5280] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5077] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5281] <... close resumed>) = 0 [pid 5077] umount2("./10/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5281] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5282 attached [pid 5281] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] lstat("./10/binderfs", [pid 5282] set_robust_list(0x7fdb729339e0, 24 [pid 5281] <... futex resumed>) = 0 [pid 5282] <... set_robust_list resumed>) = 0 [pid 5281] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5282] memfd_create("syzkaller", 0 [pid 5281] <... mmap resumed>) = 0x7fdb72913000 [pid 5077] unlink("./10/binderfs" [pid 5282] <... memfd_create resumed>) = 3 [pid 5281] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5282] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5281] <... mprotect resumed>) = 0 [pid 5077] <... unlink resumed>) = 0 [pid 5282] <... mmap resumed>) = 0x7fdb6a513000 [pid 5281] clone(child_stack=0x7fdb729333f0, 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 [pid 5273] <... mount resumed>) = 0 [pid 5077] umount2("./10/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5283] set_robust_list(0x7fdb729339e0, 24 [pid 5281] <... clone resumed>, parent_tid=[5283], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5283 [pid 5273] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5283] <... set_robust_list resumed>) = 0 [pid 5281] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5273] <... openat resumed>) = 3 [pid 5283] memfd_create("syzkaller", 0 [pid 5281] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5273] chdir("./file0" [pid 5283] <... memfd_create resumed>) = 3 [pid 5273] <... chdir resumed>) = 0 [pid 5283] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5273] ioctl(4, LOOP_CLR_FD [pid 5283] <... mmap resumed>) = 0x7fdb6a513000 [pid 5273] <... ioctl resumed>) = 0 [ 74.159063][ T5273] REISERFS (device loop0): Using r5 hash to sort names [ 74.184618][ T5273] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5273] close(4) = 0 [pid 5273] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5270] <... futex resumed>) = 0 [pid 5273] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5270] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5273] <... open resumed>) = 4 [pid 5270] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5273] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5270] <... futex resumed>) = 0 [pid 5273] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5270] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5273] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5270] <... futex resumed>) = 0 [pid 5273] ioctl(4, FS_IOC_GETVERSION [pid 5270] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5273] <... ioctl resumed>, 0x20000080) = 0 [pid 5273] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5270] <... futex resumed>) = 0 [pid 5273] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5270] exit_group(0) = ? [pid 5273] <... futex resumed>) = ? [pid 5273] +++ exited with 0 +++ [pid 5270] +++ exited with 0 +++ [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5270, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} --- [pid 5074] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5074] umount2("./10", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] openat(AT_FDCWD, "./10", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5074] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5074] umount2("./10/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] lstat("./10/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5074] unlink("./10/binderfs") = 0 [pid 5074] umount2("./10/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... umount2 resumed>) = 0 [pid 5075] umount2("./10/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5282] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5075] lstat("./10/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] umount2("./10/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5075] openat(AT_FDCWD, "./10/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5075] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5075] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5075] close(4) = 0 [pid 5075] rmdir("./10/file0") = 0 [pid 5075] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5075] close(3) = 0 [pid 5283] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5075] rmdir("./10") = 0 [pid 5075] mkdir("./11", 0777) = 0 [pid 5075] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5075] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5075] close(3) = 0 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5284 attached , child_tidptr=0x5555571745d0) = 5284 [pid 5284] set_robust_list(0x5555571745e0, 24) = 0 [pid 5284] chdir("./11") = 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 [pid 5077] <... umount2 resumed>) = 0 [pid 5076] <... umount2 resumed>) = 0 [pid 5284] <... openat resumed>) = 3 [pid 5077] umount2("./10/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5284] write(3, "1000", 4 [pid 5076] umount2("./10/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5284] <... write resumed>) = 4 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5284] close(3 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] lstat("./10/file0", [pid 5284] <... close resumed>) = 0 [pid 5077] lstat("./10/file0", [pid 5284] symlink("/dev/binderfs", "./binderfs" [pid 5076] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5284] <... symlink resumed>) = 0 [pid 5077] umount2("./10/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] umount2("./10/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5284] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5284] <... futex resumed>) = 0 [pid 5077] openat(AT_FDCWD, "./10/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] openat(AT_FDCWD, "./10/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5284] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5077] <... openat resumed>) = 4 [pid 5076] <... openat resumed>) = 4 [pid 5284] <... mmap resumed>) = 0x7fdb72913000 [pid 5077] fstat(4, [pid 5284] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5076] fstat(4, [pid 5284] <... mprotect resumed>) = 0 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5284] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5077] getdents64(4, [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5284] <... clone resumed>, parent_tid=[5285], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5285 [pid 5077] getdents64(4, [pid 5076] getdents64(4, [pid 5284] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5284] <... futex resumed>) = 0 [pid 5077] close(4 [pid 5076] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5284] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5283] <... write resumed>) = 4194304 [pid 5077] <... close resumed>) = 0 [pid 5076] getdents64(4, [pid 5077] rmdir("./10/file0" [pid 5076] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 5285 attached [pid 5077] <... rmdir resumed>) = 0 [pid 5076] close(4 [pid 5285] set_robust_list(0x7fdb729339e0, 24 [pid 5077] getdents64(3, [pid 5076] <... close resumed>) = 0 [pid 5285] <... set_robust_list resumed>) = 0 [pid 5283] munmap(0x7fdb6a513000, 4194304 [pid 5077] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5074] <... umount2 resumed>) = 0 [pid 5076] rmdir("./10/file0" [pid 5077] close(3 [pid 5076] <... rmdir resumed>) = 0 [pid 5077] <... close resumed>) = 0 [pid 5076] getdents64(3, [pid 5077] rmdir("./10" [pid 5076] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5077] <... rmdir resumed>) = 0 [pid 5285] memfd_create("syzkaller", 0 [pid 5076] close(3 [pid 5077] mkdir("./11", 0777 [pid 5285] <... memfd_create resumed>) = 3 [pid 5076] <... close resumed>) = 0 [pid 5285] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5077] <... mkdir resumed>) = 0 [pid 5076] rmdir("./10" [pid 5285] <... mmap resumed>) = 0x7fdb6a513000 [pid 5077] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5076] <... rmdir resumed>) = 0 [pid 5076] mkdir("./11", 0777 [pid 5077] <... openat resumed>) = 3 [pid 5077] ioctl(3, LOOP_CLR_FD [pid 5076] <... mkdir resumed>) = 0 [pid 5077] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5076] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5077] close(3 [pid 5283] <... munmap resumed>) = 0 [pid 5077] <... close resumed>) = 0 [pid 5076] <... openat resumed>) = 3 [pid 5283] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] ioctl(3, LOOP_CLR_FD [pid 5283] <... openat resumed>) = 4 [pid 5283] ioctl(4, LOOP_SET_FD, 3 [pid 5076] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5074] umount2("./10/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... clone resumed>, child_tidptr=0x5555571745d0) = 5286 [pid 5076] close(3) = 0 ./strace-static-x86_64: Process 5286 attached [pid 5283] <... ioctl resumed>) = 0 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] lstat("./10/file0", [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5074] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5286] set_robust_list(0x5555571745e0, 24 [pid 5283] close(3 [pid 5282] <... write resumed>) = 4194304 [pid 5286] <... set_robust_list resumed>) = 0 [pid 5283] <... close resumed>) = 0 [pid 5076] <... clone resumed>, child_tidptr=0x5555571745d0) = 5287 [pid 5074] umount2("./10/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5287 attached [pid 5286] chdir("./11" [pid 5283] mkdir("./file0", 0777 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5287] set_robust_list(0x5555571745e0, 24 [pid 5286] <... chdir resumed>) = 0 [pid 5283] <... mkdir resumed>) = 0 [pid 5074] openat(AT_FDCWD, "./10/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5287] <... set_robust_list resumed>) = 0 [pid 5286] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5283] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC, "" [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"..., 4194304 [pid 5074] <... openat resumed>) = 4 [pid 5286] <... prctl resumed>) = 0 [pid 5074] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] getdents64(4, [pid 5286] setpgid(0, 0 [pid 5074] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5286] <... setpgid resumed>) = 0 [pid 5074] getdents64(4, [pid 5282] munmap(0x7fdb6a513000, 4194304 [pid 5074] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5287] chdir("./11" [pid 5286] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [ 74.487876][ T5283] loop4: detected capacity change from 0 to 8192 [pid 5074] close(4 [pid 5287] <... chdir resumed>) = 0 [pid 5286] <... openat resumed>) = 3 [pid 5282] <... munmap resumed>) = 0 [pid 5074] <... close resumed>) = 0 [pid 5287] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5286] write(3, "1000", 4 [pid 5282] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5074] rmdir("./10/file0" [pid 5287] <... prctl resumed>) = 0 [pid 5286] <... write resumed>) = 4 [pid 5282] <... openat resumed>) = 4 [pid 5074] <... rmdir resumed>) = 0 [pid 5282] ioctl(4, LOOP_SET_FD, 3 [pid 5074] getdents64(3, [pid 5287] setpgid(0, 0 [pid 5286] close(3 [pid 5074] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5074] close(3) = 0 [pid 5074] rmdir("./10" [pid 5287] <... setpgid resumed>) = 0 [pid 5286] <... close resumed>) = 0 [pid 5074] <... rmdir resumed>) = 0 [pid 5074] mkdir("./11", 0777 [pid 5287] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5286] symlink("/dev/binderfs", "./binderfs" [pid 5074] <... mkdir resumed>) = 0 [pid 5287] <... openat resumed>) = 3 [pid 5286] <... symlink resumed>) = 0 [pid 5287] write(3, "1000", 4 [pid 5286] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5074] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5287] <... write resumed>) = 4 [pid 5286] <... futex resumed>) = 0 [pid 5287] close(3 [pid 5286] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5287] <... close resumed>) = 0 [pid 5286] <... mmap resumed>) = 0x7fdb72913000 [pid 5074] <... openat resumed>) = 3 [pid 5287] symlink("/dev/binderfs", "./binderfs" [pid 5286] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5287] <... symlink resumed>) = 0 [ 74.530350][ T5283] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 74.532026][ T5282] loop5: detected capacity change from 0 to 8192 [ 74.553908][ T5283] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 74.563762][ T5283] REISERFS (device loop4): using ordered data mode [ 74.570449][ T5283] reiserfs: using flush barriers [pid 5286] <... mprotect resumed>) = 0 [pid 5287] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5286] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5287] <... futex resumed>) = 0 [pid 5287] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5286] <... clone resumed>, parent_tid=[5289], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5289 [pid 5287] <... mmap resumed>) = 0x7fdb72913000 [pid 5286] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5287] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5286] <... futex resumed>) = 0 [pid 5287] <... mprotect resumed>) = 0 [pid 5286] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5287] clone(child_stack=0x7fdb729333f0, 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 5289 attached [pid 5289] set_robust_list(0x7fdb729339e0, 24 [pid 5287] <... clone resumed>, parent_tid=[5290], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5290 [pid 5289] <... set_robust_list resumed>) = 0 [pid 5287] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5289] memfd_create("syzkaller", 0 [pid 5287] <... futex resumed>) = 0 [pid 5074] ioctl(3, LOOP_CLR_FD [pid 5289] <... memfd_create resumed>) = 3 [pid 5287] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5290 attached [pid 5289] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5290] set_robust_list(0x7fdb729339e0, 24 [pid 5289] <... mmap resumed>) = 0x7fdb6a513000 [pid 5290] <... set_robust_list resumed>) = 0 [pid 5074] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5290] memfd_create("syzkaller", 0) = 3 [pid 5074] close(3 [pid 5290] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5282] <... ioctl resumed>) = 0 [pid 5290] <... mmap resumed>) = 0x7fdb6a513000 [pid 5282] close(3 [pid 5074] <... close resumed>) = 0 [pid 5282] <... close resumed>) = 0 [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5282] mkdir("./file0", 0777) = 0 [pid 5074] <... clone resumed>, child_tidptr=0x5555571745d0) = 5291 [ 74.577129][ T5283] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 74.594172][ T5283] REISERFS (device loop4): checking transaction log (loop4) [pid 5282] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC, ""./strace-static-x86_64: Process 5291 attached [pid 5285] <... write resumed>) = 4194304 [pid 5291] set_robust_list(0x5555571745e0, 24) = 0 [pid 5291] chdir("./11" [pid 5285] munmap(0x7fdb6a513000, 4194304 [pid 5291] <... chdir resumed>) = 0 [pid 5285] <... munmap resumed>) = 0 [pid 5291] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5285] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5291] <... prctl resumed>) = 0 [pid 5285] <... openat resumed>) = 4 [pid 5291] setpgid(0, 0 [ 74.648614][ T5282] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5285] ioctl(4, LOOP_SET_FD, 3 [pid 5291] <... setpgid resumed>) = 0 [pid 5289] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5285] <... ioctl resumed>) = 0 [pid 5285] close(3) = 0 [pid 5291] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5285] mkdir("./file0", 0777) = 0 [pid 5285] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC, "" [ 74.696214][ T5285] loop1: detected capacity change from 0 to 8192 [ 74.698229][ T5282] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 74.723476][ T5283] REISERFS (device loop4): Using r5 hash to sort names [ 74.730702][ T5283] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [pid 5290] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5291] <... openat resumed>) = 3 [pid 5291] write(3, "1000", 4) = 4 [pid 5291] close(3) = 0 [pid 5289] <... write resumed>) = 4194304 [pid 5283] <... mount resumed>) = 0 [pid 5291] symlink("/dev/binderfs", "./binderfs" [pid 5289] munmap(0x7fdb6a513000, 4194304 [pid 5291] <... symlink resumed>) = 0 [pid 5289] <... munmap resumed>) = 0 [pid 5291] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5289] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5291] <... futex resumed>) = 0 [pid 5289] <... openat resumed>) = 4 [pid 5291] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5289] ioctl(4, LOOP_SET_FD, 3 [pid 5291] <... mmap resumed>) = 0x7fdb72913000 [pid 5283] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5291] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5291] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5283] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5294 attached [pid 5283] chdir("./file0" [pid 5291] <... clone resumed>, parent_tid=[5294], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5294 [pid 5291] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5291] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5294] set_robust_list(0x7fdb729339e0, 24 [pid 5283] <... chdir resumed>) = 0 [pid 5294] <... set_robust_list resumed>) = 0 [pid 5283] ioctl(4, LOOP_CLR_FD) = 0 [pid 5283] close(4) = 0 [pid 5289] <... ioctl resumed>) = 0 [pid 5289] close(3) = 0 [pid 5289] mkdir("./file0", 0777) = 0 [pid 5283] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5289] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5283] <... futex resumed>) = 1 [pid 5281] <... futex resumed>) = 0 [pid 5283] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5281] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5281] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5283] <... open resumed>) = 4 [pid 5283] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5281] <... futex resumed>) = 0 [pid 5294] memfd_create("syzkaller", 0 [pid 5283] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5281] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5294] <... memfd_create resumed>) = 3 [pid 5283] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5281] <... futex resumed>) = 0 [pid 5294] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5283] ioctl(4, FS_IOC_GETVERSION [pid 5281] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5294] <... mmap resumed>) = 0x7fdb6a513000 [ 74.736323][ T5285] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 74.758125][ T5282] REISERFS (device loop5): using ordered data mode [ 74.765113][ T5282] reiserfs: using flush barriers [ 74.771583][ T5282] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 74.777276][ T5289] loop3: detected capacity change from 0 to 8192 [pid 5283] <... ioctl resumed>, 0x20000080) = 0 [pid 5283] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5281] <... futex resumed>) = 0 [pid 5283] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5281] exit_group(0 [pid 5283] <... futex resumed>) = ? [pid 5281] <... exit_group resumed>) = ? [pid 5283] +++ exited with 0 +++ [pid 5281] +++ exited with 0 +++ [pid 5078] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5281, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=12 /* 0.12 s */} --- [pid 5078] umount2("./11", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5078] openat(AT_FDCWD, "./11", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5078] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5078] umount2("./11/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5078] lstat("./11/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5078] unlink("./11/binderfs") = 0 [pid 5078] umount2("./11/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5290] <... write resumed>) = 4194304 [ 74.844068][ T5285] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 74.853703][ T5285] REISERFS (device loop1): using ordered data mode [ 74.860329][ T5285] reiserfs: using flush barriers [ 74.870964][ T5285] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 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"..., 4194304 [pid 5290] munmap(0x7fdb6a513000, 4194304) = 0 [ 74.893854][ T5282] REISERFS (device loop5): checking transaction log (loop5) [ 74.901931][ T5289] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 74.916742][ T5285] REISERFS (device loop1): checking transaction log (loop1) [pid 5290] openat(AT_FDCWD, "/dev/loop2", 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/loop2", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5294] <... write resumed>) = 4194304 [ 74.935948][ T5289] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 74.949884][ T5290] loop2: detected capacity change from 0 to 8192 [pid 5294] munmap(0x7fdb6a513000, 4194304) = 0 [pid 5294] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [ 74.990601][ T5290] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 75.002399][ T5289] REISERFS (device loop3): using ordered data mode [ 75.003987][ T5290] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 75.019888][ T5290] REISERFS (device loop2): using ordered data mode [ 75.022690][ T5289] reiserfs: using flush barriers [ 75.027025][ T5290] reiserfs: using flush barriers [pid 5294] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5294] close(3) = 0 [pid 5294] mkdir("./file0", 0777) = 0 [pid 5294] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5078] <... umount2 resumed>) = 0 [ 75.037593][ T5294] loop0: detected capacity change from 0 to 8192 [ 75.053179][ T5290] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5078] umount2("./11/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 75.088484][ T5289] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 75.090976][ T5290] REISERFS (device loop2): checking transaction log (loop2) [ 75.113686][ T5285] REISERFS (device loop1): Using r5 hash to sort names [ 75.114812][ T5294] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5078] lstat("./11/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] umount2("./11/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5285] <... mount resumed>) = 0 [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5285] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5078] openat(AT_FDCWD, "./11/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5285] <... openat resumed>) = 3 [pid 5078] <... openat resumed>) = 4 [pid 5285] chdir("./file0" [pid 5078] fstat(4, [pid 5285] <... chdir resumed>) = 0 [pid 5078] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5285] ioctl(4, LOOP_CLR_FD [pid 5078] getdents64(4, [pid 5285] <... ioctl resumed>) = 0 [pid 5078] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5285] close(4 [pid 5078] getdents64(4, [pid 5285] <... close resumed>) = 0 [pid 5078] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5285] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] close(4 [pid 5285] <... futex resumed>) = 1 [pid 5284] <... futex resumed>) = 0 [pid 5078] <... close resumed>) = 0 [pid 5285] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5284] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] rmdir("./11/file0" [pid 5285] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5284] <... futex resumed>) = 0 [pid 5078] <... rmdir resumed>) = 0 [pid 5285] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5284] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5078] getdents64(3, [pid 5285] <... open resumed>) = 4 [pid 5078] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5285] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] close(3 [ 75.120854][ T5285] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 75.159404][ T5289] REISERFS (device loop3): checking transaction log (loop3) [pid 5285] <... futex resumed>) = 1 [pid 5284] <... futex resumed>) = 0 [pid 5078] <... close resumed>) = 0 [pid 5285] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5284] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] rmdir("./11" [pid 5285] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5284] <... futex resumed>) = 0 [pid 5078] <... rmdir resumed>) = 0 [ 75.201084][ T5294] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 75.210749][ T5294] REISERFS (device loop0): using ordered data mode [ 75.217639][ T5294] reiserfs: using flush barriers [ 75.225750][ T5294] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5285] ioctl(4, FS_IOC_GETVERSION, 0x20000080) = 0 [pid 5284] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5078] mkdir("./12", 0777 [pid 5285] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5284] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5078] <... mkdir resumed>) = 0 [pid 5284] exit_group(0 [pid 5285] <... futex resumed>) = 0 [pid 5285] ???( [pid 5284] <... exit_group resumed>) = ? [pid 5285] <... ??? resumed>) = ? [pid 5285] +++ exited with 0 +++ [pid 5284] +++ exited with 0 +++ [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5284, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 5075] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5078] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5075] umount2("./11", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5078] <... openat resumed>) = 3 [pid 5078] ioctl(3, LOOP_CLR_FD [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] openat(AT_FDCWD, "./11", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5075] fstat(3, [pid 5078] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] close(3 [pid 5075] getdents64(3, [pid 5078] <... close resumed>) = 0 [pid 5075] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5078] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] umount2("./11/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5075] lstat("./11/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5078] <... clone resumed>, child_tidptr=0x5555571745d0) = 5298 [pid 5075] unlink("./11/binderfs") = 0 [ 75.244211][ T5294] REISERFS (device loop0): checking transaction log (loop0) [pid 5075] umount2("./11/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5298 attached [pid 5298] set_robust_list(0x5555571745e0, 24) = 0 [pid 5298] chdir("./12") = 0 [pid 5298] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5298] setpgid(0, 0) = 0 [ 75.297481][ T5282] REISERFS (device loop5): Using r5 hash to sort names [ 75.327172][ T5282] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 5298] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5298] write(3, "1000", 4) = 4 [pid 5282] <... mount resumed>) = 0 [pid 5282] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5282] chdir("./file0") = 0 [pid 5282] ioctl(4, LOOP_CLR_FD) = 0 [pid 5282] close(4 [pid 5298] close(3 [pid 5282] <... close resumed>) = 0 [pid 5282] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5280] <... futex resumed>) = 0 [pid 5280] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5280] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5282] <... futex resumed>) = 1 [pid 5282] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5298] <... close resumed>) = 0 [pid 5298] symlink("/dev/binderfs", "./binderfs" [pid 5282] <... open resumed>) = 4 [pid 5282] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5298] <... symlink resumed>) = 0 [pid 5280] <... futex resumed>) = 0 [pid 5280] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5280] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5298] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5282] <... futex resumed>) = 1 [pid 5298] <... futex resumed>) = 0 [pid 5298] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5282] ioctl(4, FS_IOC_GETVERSION [pid 5298] <... mmap resumed>) = 0x7fdb72913000 [pid 5298] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5282] <... ioctl resumed>, 0x20000080) = 0 [pid 5282] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5298] <... mprotect resumed>) = 0 [pid 5280] <... futex resumed>) = 0 [pid 5298] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5280] exit_group(0) = ? [pid 5298] <... clone resumed>, parent_tid=[5299], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5299 [pid 5282] <... futex resumed>) = ? [pid 5298] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5298] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5290] <... mount resumed>) = 0 [pid 5290] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5282] +++ exited with 0 +++ [pid 5280] +++ exited with 0 +++ [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5280, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- ./strace-static-x86_64: Process 5299 attached [pid 5290] chdir("./file0" [pid 5299] set_robust_list(0x7fdb729339e0, 24 [pid 5290] <... chdir resumed>) = 0 [pid 5079] umount2("./10", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./10", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5299] <... set_robust_list resumed>) = 0 [pid 5290] ioctl(4, LOOP_CLR_FD [pid 5079] <... openat resumed>) = 3 [pid 5079] fstat(3, [pid 5299] memfd_create("syzkaller", 0 [pid 5290] <... ioctl resumed>) = 0 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5299] <... memfd_create resumed>) = 3 [ 75.346076][ T5290] REISERFS (device loop2): Using r5 hash to sort names [ 75.354881][ T5290] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 5290] close(4 [pid 5299] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5290] <... close resumed>) = 0 [pid 5079] getdents64(3, [pid 5299] <... mmap resumed>) = 0x7fdb6a513000 [pid 5290] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5079] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5290] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5287] <... futex resumed>) = 0 [pid 5079] umount2("./10/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5287] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] lstat("./10/binderfs", [pid 5290] <... futex resumed>) = 0 [pid 5287] <... futex resumed>) = 1 [pid 5290] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 5290] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5290] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5287] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5287] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5287] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] unlink("./10/binderfs" [pid 5290] <... futex resumed>) = 0 [pid 5287] <... futex resumed>) = 1 [pid 5290] ioctl(4, FS_IOC_GETVERSION, 0x20000080) = 0 [pid 5290] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5287] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5079] <... unlink resumed>) = 0 [pid 5290] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5287] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5079] umount2("./10/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5287] exit_group(0 [pid 5290] <... futex resumed>) = ? [pid 5287] <... exit_group resumed>) = ? [pid 5290] +++ exited with 0 +++ [pid 5287] +++ exited with 0 +++ [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5287, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=22 /* 0.22 s */} --- [pid 5076] umount2("./11", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5076] openat(AT_FDCWD, "./11", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5076] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5076] umount2("./11/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5076] lstat("./11/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] unlink("./11/binderfs") = 0 [pid 5076] umount2("./11/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5299] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5075] <... umount2 resumed>) = 0 [ 75.497439][ T5289] REISERFS (device loop3): Using r5 hash to sort names [ 75.530987][ T5289] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 75.540339][ T5294] REISERFS (device loop0): Using r5 hash to sort names [pid 5075] umount2("./11/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5075] lstat("./11/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] umount2("./11/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5075] openat(AT_FDCWD, "./11/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5075] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5289] <... mount resumed>) = 0 [pid 5075] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5289] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5075] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5075] close(4) = 0 [pid 5075] rmdir("./11/file0") = 0 [pid 5075] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5075] close(3) = 0 [pid 5075] rmdir("./11") = 0 [pid 5075] mkdir("./12", 0777) = 0 [pid 5289] <... openat resumed>) = 3 [pid 5075] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5294] <... mount resumed>) = 0 [pid 5289] chdir("./file0" [pid 5075] <... openat resumed>) = 3 [pid 5294] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5289] <... chdir resumed>) = 0 [pid 5075] ioctl(3, LOOP_CLR_FD [pid 5294] <... openat resumed>) = 3 [pid 5289] ioctl(4, LOOP_CLR_FD [pid 5075] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5294] chdir("./file0" [pid 5289] <... ioctl resumed>) = 0 [pid 5076] <... umount2 resumed>) = 0 [pid 5075] close(3 [pid 5294] <... chdir resumed>) = 0 [pid 5289] close(4 [pid 5075] <... close resumed>) = 0 [pid 5289] <... close resumed>) = 0 [pid 5294] ioctl(4, LOOP_CLR_FD [pid 5289] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5294] <... ioctl resumed>) = 0 [pid 5289] <... futex resumed>) = 1 [pid 5286] <... futex resumed>) = 0 [ 75.563677][ T5294] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5076] umount2("./11/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5294] close(4 [pid 5289] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5286] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... clone resumed>, child_tidptr=0x5555571745d0) = 5300 [pid 5294] <... close resumed>) = 0 [pid 5289] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5286] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5076] lstat("./11/file0", ./strace-static-x86_64: Process 5300 attached {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5294] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5289] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5300] set_robust_list(0x5555571745e0, 24) = 0 [pid 5300] chdir("./12") = 0 [pid 5300] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5300] setpgid(0, 0) = 0 [pid 5289] <... open resumed>) = 4 [pid 5294] <... futex resumed>) = 1 [pid 5291] <... futex resumed>) = 0 [pid 5289] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5076] umount2("./11/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5294] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5291] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5294] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5291] <... futex resumed>) = 0 [pid 5289] <... futex resumed>) = 1 [pid 5286] <... futex resumed>) = 0 [pid 5076] openat(AT_FDCWD, "./11/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5294] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5291] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5289] ioctl(4, FS_IOC_GETVERSION [pid 5286] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5076] <... openat resumed>) = 4 [pid 5300] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5294] <... open resumed>) = 4 [pid 5289] <... ioctl resumed>, 0x20000080) = 0 [pid 5286] <... futex resumed>) = 0 [pid 5076] fstat(4, [pid 5300] <... openat resumed>) = 3 [pid 5294] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5289] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5286] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5300] write(3, "1000", 4 [pid 5294] <... futex resumed>) = 1 [pid 5291] <... futex resumed>) = 0 [pid 5289] <... futex resumed>) = 0 [pid 5286] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5294] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5291] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5289] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5076] getdents64(4, [pid 5294] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5291] <... futex resumed>) = 0 [pid 5286] exit_group(0 [pid 5300] <... write resumed>) = 4 [pid 5294] ioctl(4, FS_IOC_GETVERSION [pid 5291] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5079] <... umount2 resumed>) = 0 [pid 5076] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5300] close(3 [pid 5286] <... exit_group resumed>) = ? [pid 5300] <... close resumed>) = 0 [pid 5300] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5294] <... ioctl resumed>, 0x20000080) = 0 [pid 5076] getdents64(4, [pid 5289] <... futex resumed>) = ? [pid 5076] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5294] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5300] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5300] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5300] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5300] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5301], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5301 [pid 5300] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5300] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5301 attached [pid 5301] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5301] memfd_create("syzkaller", 0 [pid 5289] +++ exited with 0 +++ [pid 5286] +++ exited with 0 +++ [pid 5076] close(4) = 0 [pid 5294] <... futex resumed>) = 1 [pid 5291] <... futex resumed>) = 0 [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5286, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=22 /* 0.22 s */} --- [pid 5076] rmdir("./11/file0" [pid 5294] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5291] exit_group(0 [pid 5079] umount2("./10/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5291] <... exit_group resumed>) = ? [pid 5301] <... memfd_create resumed>) = 3 [pid 5301] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5076] <... rmdir resumed>) = 0 [pid 5294] <... futex resumed>) = ? [pid 5301] <... mmap resumed>) = 0x7fdb6a513000 [pid 5294] +++ exited with 0 +++ [pid 5291] +++ exited with 0 +++ [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] umount2("./11", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] getdents64(3, [pid 5079] lstat("./10/file0", [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5079] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] openat(AT_FDCWD, "./11", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] close(3 [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5291, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=17 /* 0.17 s */} --- [pid 5079] umount2("./10/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... close resumed>) = 0 [pid 5074] restart_syscall(<... resuming interrupted clone ...> [pid 5077] <... openat resumed>) = 3 [pid 5076] rmdir("./11" [pid 5074] <... restart_syscall resumed>) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] fstat(3, [pid 5076] <... rmdir resumed>) = 0 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] openat(AT_FDCWD, "./10/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] getdents64(3, [pid 5079] <... openat resumed>) = 4 [pid 5074] umount2("./11", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5079] fstat(4, [pid 5077] umount2("./11/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] mkdir("./12", 0777 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] openat(AT_FDCWD, "./11", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] <... mkdir resumed>) = 0 [pid 5074] <... openat resumed>) = 3 [pid 5079] getdents64(4, [pid 5077] lstat("./11/binderfs", [pid 5076] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5074] fstat(3, [pid 5079] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] getdents64(4, [pid 5077] unlink("./11/binderfs" [pid 5076] <... openat resumed>) = 3 [pid 5074] getdents64(3, [pid 5079] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5299] <... write resumed>) = 4194304 [pid 5079] close(4 [pid 5077] <... unlink resumed>) = 0 [pid 5076] ioctl(3, LOOP_CLR_FD [pid 5074] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5079] <... close resumed>) = 0 [pid 5077] umount2("./11/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5074] umount2("./11/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] rmdir("./10/file0" [pid 5076] close(3 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5299] munmap(0x7fdb6a513000, 4194304 [pid 5079] <... rmdir resumed>) = 0 [pid 5076] <... close resumed>) = 0 [pid 5074] lstat("./11/binderfs", [pid 5079] getdents64(3, [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5074] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] close(3) = 0 [pid 5074] unlink("./11/binderfs" [pid 5079] rmdir("./10" [pid 5299] <... munmap resumed>) = 0 [pid 5079] <... rmdir resumed>) = 0 [pid 5074] <... unlink resumed>) = 0 [pid 5079] mkdir("./11", 0777 [pid 5074] umount2("./11/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5299] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5299] ioctl(4, LOOP_SET_FD, 3 [pid 5079] <... mkdir resumed>) = 0 [pid 5079] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5079] ioctl(3, LOOP_CLR_FD [pid 5076] <... clone resumed>, child_tidptr=0x5555571745d0) = 5302 [pid 5299] <... ioctl resumed>) = 0 [pid 5079] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5079] close(3 [pid 5299] close(3) = 0 [pid 5299] mkdir("./file0", 0777) = 0 ./strace-static-x86_64: Process 5302 attached [pid 5302] set_robust_list(0x5555571745e0, 24 [pid 5299] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5079] <... close resumed>) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5304 [pid 5302] <... set_robust_list resumed>) = 0 [pid 5302] chdir("./12") = 0 [pid 5302] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5302] setpgid(0, 0) = 0 [pid 5302] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5302] write(3, "1000", 4) = 4 [pid 5302] close(3) = 0 [pid 5302] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5302] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5302] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5302] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5301] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5302] <... mprotect resumed>) = 0 [pid 5302] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5305], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5305 [pid 5302] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5302] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5305 attached [pid 5305] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5305] memfd_create("syzkaller", 0) = 3 [pid 5305] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 ./strace-static-x86_64: Process 5304 attached [ 75.686214][ T5299] loop4: detected capacity change from 0 to 8192 [ 75.716480][ T5299] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5304] set_robust_list(0x5555571745e0, 24 [pid 5077] <... umount2 resumed>) = 0 [pid 5304] <... set_robust_list resumed>) = 0 [pid 5077] umount2("./11/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5304] chdir("./11" [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5304] <... chdir resumed>) = 0 [pid 5077] lstat("./11/file0", [pid 5304] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5304] setpgid(0, 0) = 0 [pid 5304] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5304] write(3, "1000", 4) = 4 [pid 5304] close(3) = 0 [pid 5304] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5077] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5304] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5304] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5304] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5304] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5077] umount2("./11/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] openat(AT_FDCWD, "./11/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5304] <... clone resumed>, parent_tid=[5306], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5306 [pid 5304] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] <... openat resumed>) = 4 [pid 5304] <... futex resumed>) = 0 [pid 5077] fstat(4, [pid 5304] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [ 75.759279][ T5299] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 75.769683][ T5299] REISERFS (device loop4): using ordered data mode [ 75.793904][ T5299] reiserfs: using flush barriers [pid 5077] getdents64(4, ./strace-static-x86_64: Process 5306 attached 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5077] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5077] close(4) = 0 [pid 5077] rmdir("./11/file0") = 0 [pid 5077] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5077] close(3 [pid 5306] set_robust_list(0x7fdb729339e0, 24 [pid 5077] <... close resumed>) = 0 [pid 5077] rmdir("./11") = 0 [pid 5077] mkdir("./12", 0777 [pid 5306] <... set_robust_list resumed>) = 0 [pid 5077] <... mkdir resumed>) = 0 [pid 5077] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5306] memfd_create("syzkaller", 0) = 3 [pid 5306] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5077] <... openat resumed>) = 3 [pid 5306] <... mmap resumed>) = 0x7fdb6a513000 [pid 5077] ioctl(3, LOOP_CLR_FD [pid 5305] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5077] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5077] close(3) = 0 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5307 [ 75.803697][ T5299] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 ./strace-static-x86_64: Process 5307 attached [pid 5307] set_robust_list(0x5555571745e0, 24) = 0 [pid 5307] chdir("./12") = 0 [pid 5307] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5307] setpgid(0, 0) = 0 [pid 5307] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5307] write(3, "1000", 4) = 4 [ 75.864191][ T5299] REISERFS (device loop4): checking transaction log (loop4) [pid 5307] close(3) = 0 [pid 5307] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5307] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5307] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5306] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5301] <... write resumed>) = 4194304 [pid 5074] <... umount2 resumed>) = 0 [pid 5307] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5301] munmap(0x7fdb6a513000, 4194304 [pid 5074] umount2("./11/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5307] <... mprotect resumed>) = 0 [pid 5301] <... munmap resumed>) = 0 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5307] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5301] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5074] lstat("./11/file0", ./strace-static-x86_64: Process 5308 attached [pid 5301] <... openat resumed>) = 4 [pid 5074] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5307] <... clone resumed>, parent_tid=[5308], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5308 [pid 5301] ioctl(4, LOOP_SET_FD, 3 [pid 5308] set_robust_list(0x7fdb729339e0, 24 [pid 5074] umount2("./11/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5307] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5305] <... write resumed>) = 4194304 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5308] <... set_robust_list resumed>) = 0 [pid 5307] <... futex resumed>) = 0 [pid 5305] munmap(0x7fdb6a513000, 4194304 [pid 5301] <... ioctl resumed>) = 0 [pid 5074] openat(AT_FDCWD, "./11/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5308] memfd_create("syzkaller", 0 [pid 5307] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5308] <... memfd_create resumed>) = 3 [pid 5305] <... munmap resumed>) = 0 [pid 5301] close(3 [pid 5074] <... openat resumed>) = 4 [pid 5308] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5305] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5301] <... close resumed>) = 0 [pid 5074] fstat(4, [pid 5308] <... mmap resumed>) = 0x7fdb6a513000 [pid 5305] <... openat resumed>) = 4 [pid 5301] mkdir("./file0", 0777 [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5305] ioctl(4, LOOP_SET_FD, 3 [pid 5301] <... mkdir resumed>) = 0 [ 75.984169][ T5301] loop1: detected capacity change from 0 to 8192 [pid 5074] getdents64(4, [pid 5301] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5074] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5074] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5305] <... ioctl resumed>) = 0 [pid 5074] close(4) = 0 [pid 5305] close(3 [pid 5074] rmdir("./11/file0" [pid 5305] <... close resumed>) = 0 [pid 5074] <... rmdir resumed>) = 0 [pid 5305] mkdir("./file0", 0777 [pid 5074] getdents64(3, [pid 5305] <... mkdir resumed>) = 0 [pid 5074] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5305] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5074] close(3) = 0 [pid 5074] rmdir("./11") = 0 [pid 5074] mkdir("./12", 0777) = 0 [ 76.028943][ T5305] loop2: detected capacity change from 0 to 8192 [ 76.062411][ T5301] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5074] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5074] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5074] close(3) = 0 [pid 5308] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5311 ./strace-static-x86_64: Process 5311 attached [pid 5311] set_robust_list(0x5555571745e0, 24) = 0 [ 76.079461][ T5305] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 76.119459][ T5299] REISERFS (device loop4): Using r5 hash to sort names [pid 5308] <... write resumed>) = 4194304 [pid 5311] chdir("./12") = 0 [pid 5308] munmap(0x7fdb6a513000, 4194304 [pid 5311] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5308] <... munmap resumed>) = 0 [pid 5308] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 5308] ioctl(4, LOOP_SET_FD, 3 [pid 5311] setpgid(0, 0) = 0 [pid 5311] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5308] <... ioctl resumed>) = 0 [pid 5308] close(3) = 0 [pid 5308] mkdir("./file0", 0777) = 0 [pid 5308] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5311] <... openat resumed>) = 3 [pid 5311] write(3, "1000", 4) = 4 [pid 5311] close(3) = 0 [ 76.146592][ T5301] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 76.162459][ T5299] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 76.166645][ T5308] loop3: detected capacity change from 0 to 8192 [ 76.178973][ T5305] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 76.185499][ T5301] REISERFS (device loop1): using ordered data mode [pid 5311] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5311] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5311] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5311] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5311] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5313], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5313 [pid 5311] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5311] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5299] <... mount resumed>) = 0 [ 76.195750][ T5301] reiserfs: using flush barriers [ 76.204297][ T5301] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 76.204511][ T5305] REISERFS (device loop2): using ordered data mode [ 76.227248][ T5305] reiserfs: using flush barriers [ 76.235127][ T5301] REISERFS (device loop1): checking transaction log (loop1) [pid 5299] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY./strace-static-x86_64: Process 5313 attached [pid 5306] <... write resumed>) = 4194304 [pid 5299] <... openat resumed>) = 3 [pid 5313] set_robust_list(0x7fdb729339e0, 24 [pid 5306] munmap(0x7fdb6a513000, 4194304 [pid 5299] chdir("./file0" [pid 5313] <... set_robust_list resumed>) = 0 [pid 5306] <... munmap resumed>) = 0 [pid 5299] <... chdir resumed>) = 0 [pid 5313] memfd_create("syzkaller", 0 [pid 5306] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5299] ioctl(4, LOOP_CLR_FD [pid 5313] <... memfd_create resumed>) = 3 [pid 5306] <... openat resumed>) = 4 [pid 5299] <... ioctl resumed>) = 0 [pid 5313] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5306] ioctl(4, LOOP_SET_FD, 3 [pid 5299] close(4 [pid 5313] <... mmap resumed>) = 0x7fdb6a513000 [pid 5306] <... ioctl resumed>) = 0 [pid 5299] <... close resumed>) = 0 [pid 5299] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5298] <... futex resumed>) = 0 [pid 5299] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5298] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5299] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5298] <... futex resumed>) = 0 [pid 5299] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5298] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5299] <... open resumed>) = 4 [pid 5299] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5298] <... futex resumed>) = 0 [pid 5299] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5298] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5299] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5298] <... futex resumed>) = 0 [pid 5299] ioctl(4, FS_IOC_GETVERSION [pid 5298] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5299] <... ioctl resumed>, 0x20000080) = 0 [pid 5299] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5298] <... futex resumed>) = 0 [pid 5299] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5298] exit_group(0 [pid 5299] <... futex resumed>) = ? [pid 5298] <... exit_group resumed>) = ? [pid 5299] +++ exited with 0 +++ [pid 5298] +++ exited with 0 +++ [pid 5306] close(3) = 0 [pid 5306] mkdir("./file0", 0777) = 0 [pid 5306] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5078] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5298, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=17 /* 0.17 s */} --- [ 76.243718][ T5305] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 76.266388][ T5306] loop5: detected capacity change from 0 to 8192 [ 76.271153][ T5308] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5313] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5078] umount2("./12", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5078] openat(AT_FDCWD, "./12", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5078] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5078] umount2("./12/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5078] lstat("./12/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5078] unlink("./12/binderfs") = 0 [ 76.314411][ T5306] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 76.350952][ T5306] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 76.360622][ T5306] REISERFS (device loop5): using ordered data mode [ 76.360877][ T5308] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 76.367380][ T5306] reiserfs: using flush barriers [ 76.380537][ T5305] REISERFS (device loop2): checking transaction log (loop2) [ 76.397205][ T5306] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5078] umount2("./12/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5313] <... write resumed>) = 4194304 [pid 5313] munmap(0x7fdb6a513000, 4194304) = 0 [pid 5313] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [ 76.408153][ T5308] REISERFS (device loop3): using ordered data mode [ 76.451285][ T5306] REISERFS (device loop5): checking transaction log (loop5) [ 76.455222][ T5313] loop0: detected capacity change from 0 to 8192 [ 76.466341][ T5308] reiserfs: using flush barriers [ 76.471586][ T5301] REISERFS (device loop1): Using r5 hash to sort names [pid 5313] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5313] close(3) = 0 [pid 5313] mkdir("./file0", 0777) = 0 [pid 5313] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5301] <... mount resumed>) = 0 [pid 5301] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5301] chdir("./file0") = 0 [pid 5301] ioctl(4, LOOP_CLR_FD) = 0 [pid 5301] close(4) = 0 [pid 5301] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5300] <... futex resumed>) = 0 [pid 5301] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5300] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5301] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5300] <... futex resumed>) = 0 [pid 5301] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5300] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5301] <... open resumed>) = 4 [pid 5301] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5300] <... futex resumed>) = 0 [pid 5301] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5300] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5301] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5300] <... futex resumed>) = 0 [pid 5301] ioctl(4, FS_IOC_GETVERSION [pid 5300] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5301] <... ioctl resumed>, 0x20000080) = 0 [pid 5301] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5300] <... futex resumed>) = 0 [pid 5301] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5300] exit_group(0 [pid 5301] <... futex resumed>) = ? [pid 5300] <... exit_group resumed>) = ? [pid 5301] +++ exited with 0 +++ [pid 5300] +++ exited with 0 +++ [ 76.490677][ T5308] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 76.496008][ T5301] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 76.530221][ T5313] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 76.534394][ T5308] REISERFS (device loop3): checking transaction log (loop3) [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5300, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- [pid 5075] umount2("./12", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5075] openat(AT_FDCWD, "./12", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5075] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5075] umount2("./12/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5075] lstat("./12/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] unlink("./12/binderfs") = 0 [ 76.593670][ T5313] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 76.631224][ T5313] REISERFS (device loop0): using ordered data mode [pid 5075] umount2("./12/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5078] <... umount2 resumed>) = 0 [pid 5078] umount2("./12/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5078] lstat("./12/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] umount2("./12/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5078] openat(AT_FDCWD, "./12/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5078] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5078] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5078] close(4) = 0 [ 76.642225][ T5305] REISERFS (device loop2): Using r5 hash to sort names [pid 5078] rmdir("./12/file0") = 0 [pid 5078] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5078] close(3) = 0 [pid 5078] rmdir("./12") = 0 [pid 5078] mkdir("./13", 0777) = 0 [pid 5078] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5078] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5078] close(3) = 0 [pid 5078] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5316 ./strace-static-x86_64: Process 5316 attached [ 76.673424][ T5313] reiserfs: using flush barriers [ 76.679710][ T5305] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 5316] set_robust_list(0x5555571745e0, 24) = 0 [pid 5316] chdir("./13") = 0 [pid 5316] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5316] setpgid(0, 0) = 0 [pid 5316] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5305] <... mount resumed>) = 0 [pid 5316] write(3, "1000", 4 [pid 5305] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5316] <... write resumed>) = 4 [pid 5305] <... openat resumed>) = 3 [pid 5316] close(3 [pid 5305] chdir("./file0" [pid 5316] <... close resumed>) = 0 [pid 5305] <... chdir resumed>) = 0 [pid 5316] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5305] ioctl(4, LOOP_CLR_FD [pid 5316] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [ 76.708734][ T5313] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5305] <... ioctl resumed>) = 0 [pid 5316] <... futex resumed>) = 0 [pid 5305] close(4 [pid 5316] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5305] <... close resumed>) = 0 [pid 5316] <... mmap resumed>) = 0x7fdb72913000 [pid 5305] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5316] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5305] <... futex resumed>) = 1 [pid 5316] <... mprotect resumed>) = 0 [pid 5305] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5302] <... futex resumed>) = 0 [pid 5316] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5302] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5305] <... futex resumed>) = 0 [pid 5302] <... futex resumed>) = 1 [pid 5316] <... clone resumed>, parent_tid=[5317], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5317 [pid 5305] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5302] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5316] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5305] <... open resumed>) = 4 [pid 5316] <... futex resumed>) = 0 [pid 5305] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5316] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5305] <... futex resumed>) = 1 [pid 5302] <... futex resumed>) = 0 [pid 5305] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5302] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5305] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5302] <... futex resumed>) = 0 [pid 5305] ioctl(4, FS_IOC_GETVERSION [pid 5302] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5317 attached [pid 5305] <... ioctl resumed>, 0x20000080) = 0 [pid 5317] set_robust_list(0x7fdb729339e0, 24 [pid 5305] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5317] <... set_robust_list resumed>) = 0 [pid 5305] <... futex resumed>) = 1 [pid 5302] <... futex resumed>) = 0 [pid 5317] memfd_create("syzkaller", 0 [pid 5305] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5302] exit_group(0 [pid 5317] <... memfd_create resumed>) = 3 [pid 5305] <... futex resumed>) = ? [pid 5302] <... exit_group resumed>) = ? [pid 5317] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5305] +++ exited with 0 +++ [pid 5317] <... mmap resumed>) = 0x7fdb6a513000 [pid 5302] +++ exited with 0 +++ [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5302, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=25 /* 0.25 s */} --- [pid 5076] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5076] umount2("./12", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5076] openat(AT_FDCWD, "./12", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [ 76.747900][ T5306] REISERFS (device loop5): Using r5 hash to sort names [pid 5076] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5076] umount2("./12/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5076] lstat("./12/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] unlink("./12/binderfs") = 0 [ 76.789638][ T5313] REISERFS (device loop0): checking transaction log (loop0) [ 76.797385][ T5306] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 5076] umount2("./12/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5317] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5306] <... mount resumed>) = 0 [pid 5306] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5306] chdir("./file0") = 0 [pid 5306] ioctl(4, LOOP_CLR_FD) = 0 [pid 5306] close(4) = 0 [pid 5306] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [ 76.835820][ T7] cfg80211: failed to load regulatory.db [pid 5304] <... futex resumed>) = 0 [pid 5306] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5304] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5075] <... umount2 resumed>) = 0 [pid 5306] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5304] <... futex resumed>) = 0 [pid 5306] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5304] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5075] umount2("./12/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5075] lstat("./12/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5306] <... open resumed>) = 4 [pid 5306] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5075] umount2("./12/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5306] <... futex resumed>) = 1 [pid 5304] <... futex resumed>) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5306] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5304] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5306] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5304] <... futex resumed>) = 0 [pid 5075] openat(AT_FDCWD, "./12/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5306] ioctl(4, FS_IOC_GETVERSION [pid 5304] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5075] <... openat resumed>) = 4 [pid 5306] <... ioctl resumed>, 0x20000080) = 0 [pid 5075] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5306] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5075] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5306] <... futex resumed>) = 1 [pid 5304] <... futex resumed>) = 0 [pid 5075] close(4 [pid 5306] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5304] exit_group(0 [pid 5075] <... close resumed>) = 0 [pid 5306] <... futex resumed>) = ? [pid 5304] <... exit_group resumed>) = ? [pid 5075] rmdir("./12/file0") = 0 [pid 5075] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5075] close(3 [pid 5306] +++ exited with 0 +++ [pid 5075] <... close resumed>) = 0 [pid 5075] rmdir("./12" [pid 5304] +++ exited with 0 +++ [pid 5075] <... rmdir resumed>) = 0 [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5304, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=18 /* 0.18 s */} --- [pid 5075] mkdir("./13", 0777) = 0 [pid 5075] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5079] umount2("./11", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... openat resumed>) = 3 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] ioctl(3, LOOP_CLR_FD [pid 5079] openat(AT_FDCWD, "./11", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5079] <... openat resumed>) = 3 [pid 5075] close(3 [pid 5079] fstat(3, [pid 5075] <... close resumed>) = 0 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5075] <... clone resumed>, child_tidptr=0x5555571745d0) = 5318 [pid 5079] umount2("./11/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] lstat("./11/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [ 76.947954][ T5308] REISERFS (device loop3): Using r5 hash to sort names [pid 5079] unlink("./11/binderfs"./strace-static-x86_64: Process 5318 attached ) = 0 [pid 5318] set_robust_list(0x5555571745e0, 24 [pid 5079] umount2("./11/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5318] <... set_robust_list resumed>) = 0 [pid 5318] chdir("./13") = 0 [pid 5318] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5318] setpgid(0, 0) = 0 [pid 5318] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5318] write(3, "1000", 4) = 4 [pid 5318] close(3) = 0 [pid 5318] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5318] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5318] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5318] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5318] clone(child_stack=0x7fdb729333f0, 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 5319 attached [pid 5319] set_robust_list(0x7fdb729339e0, 24 [pid 5318] <... clone resumed>, parent_tid=[5319], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5319 [pid 5319] <... set_robust_list resumed>) = 0 [pid 5319] memfd_create("syzkaller", 0 [pid 5318] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5308] <... mount resumed>) = 0 [pid 5076] <... umount2 resumed>) = 0 [pid 5319] <... memfd_create resumed>) = 3 [pid 5318] <... futex resumed>) = 0 [pid 5308] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5076] umount2("./12/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5319] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5318] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5308] <... openat resumed>) = 3 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5319] <... mmap resumed>) = 0x7fdb6a513000 [pid 5317] <... write resumed>) = 4194304 [pid 5308] chdir("./file0" [pid 5076] lstat("./12/file0", [pid 5317] munmap(0x7fdb6a513000, 4194304 [pid 5308] <... chdir resumed>) = 0 [pid 5076] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5317] <... munmap resumed>) = 0 [pid 5308] ioctl(4, LOOP_CLR_FD [ 77.000121][ T5308] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [pid 5076] umount2("./12/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5317] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5308] <... ioctl resumed>) = 0 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5317] <... openat resumed>) = 4 [pid 5308] close(4 [pid 5076] openat(AT_FDCWD, "./12/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5317] ioctl(4, LOOP_SET_FD, 3 [pid 5308] <... close resumed>) = 0 [pid 5076] <... openat resumed>) = 4 [pid 5317] <... ioctl resumed>) = 0 [pid 5308] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5076] fstat(4, [pid 5308] <... futex resumed>) = 1 [pid 5307] <... futex resumed>) = 0 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5317] close(3 [pid 5308] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5307] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5076] getdents64(4, [pid 5317] <... close resumed>) = 0 [pid 5308] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5307] <... futex resumed>) = 0 [pid 5076] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5317] mkdir("./file0", 0777 [pid 5308] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5307] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5076] getdents64(4, [pid 5317] <... mkdir resumed>) = 0 [pid 5308] <... open resumed>) = 4 [pid 5076] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5317] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5308] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5076] close(4 [pid 5308] <... futex resumed>) = 1 [pid 5307] <... futex resumed>) = 0 [pid 5076] <... close resumed>) = 0 [pid 5308] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5307] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5076] rmdir("./12/file0" [pid 5308] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5307] <... futex resumed>) = 0 [pid 5076] <... rmdir resumed>) = 0 [pid 5308] ioctl(4, FS_IOC_GETVERSION [pid 5307] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5076] getdents64(3, [pid 5308] <... ioctl resumed>, 0x20000080) = 0 [pid 5076] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5308] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [ 77.075366][ T5317] loop4: detected capacity change from 0 to 8192 [ 77.106681][ T5313] REISERFS (device loop0): Using r5 hash to sort names [pid 5076] close(3 [pid 5308] <... futex resumed>) = 1 [pid 5307] <... futex resumed>) = 0 [pid 5076] <... close resumed>) = 0 [pid 5308] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5307] exit_group(0 [pid 5076] rmdir("./12" [pid 5308] <... futex resumed>) = ? [pid 5307] <... exit_group resumed>) = ? [pid 5076] <... rmdir resumed>) = 0 [pid 5308] +++ exited with 0 +++ [pid 5307] +++ exited with 0 +++ [pid 5076] mkdir("./13", 0777 [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5307, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=17 /* 0.17 s */} --- [pid 5076] <... mkdir resumed>) = 0 [pid 5076] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5077] umount2("./12", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] ioctl(3, LOOP_CLR_FD [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5077] openat(AT_FDCWD, "./12", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] close(3 [pid 5077] <... openat resumed>) = 3 [pid 5076] <... close resumed>) = 0 [pid 5077] fstat(3, [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] getdents64(3, [pid 5076] <... clone resumed>, child_tidptr=0x5555571745d0) = 5321 [pid 5077] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5077] umount2("./12/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] lstat("./12/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] unlink("./12/binderfs") = 0 [ 77.124539][ T5317] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5077] umount2("./12/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5321 attached [pid 5079] <... umount2 resumed>) = 0 [pid 5321] set_robust_list(0x5555571745e0, 24 [pid 5319] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5079] umount2("./11/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5321] <... set_robust_list resumed>) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] lstat("./11/file0", [pid 5321] chdir("./13" [pid 5079] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5321] <... chdir resumed>) = 0 [pid 5321] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5321] setpgid(0, 0) = 0 [pid 5321] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5079] umount2("./11/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5321] write(3, "1000", 4 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5321] <... write resumed>) = 4 [pid 5321] close(3) = 0 [pid 5321] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5321] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5321] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [ 77.177064][ T5313] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5321] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5079] openat(AT_FDCWD, "./11/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5321] <... mprotect resumed>) = 0 [pid 5321] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5322], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5322 [pid 5321] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5321] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5079] <... openat resumed>) = 4 [pid 5079] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 ./strace-static-x86_64: Process 5322 attached [pid 5079] getdents64(4, [pid 5322] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5079] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5322] memfd_create("syzkaller", 0 [pid 5079] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5322] <... memfd_create resumed>) = 3 [pid 5079] close(4 [pid 5322] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5313] <... mount resumed>) = 0 [pid 5079] <... close resumed>) = 0 [pid 5322] <... mmap resumed>) = 0x7fdb6a513000 [pid 5313] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5079] rmdir("./11/file0" [pid 5313] <... openat resumed>) = 3 [pid 5313] chdir("./file0") = 0 [pid 5313] ioctl(4, LOOP_CLR_FD) = 0 [pid 5079] <... rmdir resumed>) = 0 [pid 5079] getdents64(3, [ 77.229234][ T5317] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [pid 5313] close(4) = 0 [pid 5079] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5313] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5311] <... futex resumed>) = 0 [pid 5313] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5311] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5313] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5311] <... futex resumed>) = 0 [pid 5313] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5311] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5313] <... open resumed>) = 4 [pid 5079] close(3 [pid 5313] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5311] <... futex resumed>) = 0 [pid 5313] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5311] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5313] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5311] <... futex resumed>) = 0 [pid 5313] ioctl(4, FS_IOC_GETVERSION [pid 5311] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5313] <... ioctl resumed>, 0x20000080) = 0 [pid 5313] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5311] <... futex resumed>) = 0 [pid 5079] <... close resumed>) = 0 [pid 5313] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5311] exit_group(0 [pid 5313] <... futex resumed>) = ? [pid 5311] <... exit_group resumed>) = ? [pid 5313] +++ exited with 0 +++ [pid 5311] +++ exited with 0 +++ [pid 5079] rmdir("./11" [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5311, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=16 /* 0.16 s */} --- [pid 5074] restart_syscall(<... resuming interrupted clone ...> [pid 5079] <... rmdir resumed>) = 0 [pid 5074] <... restart_syscall resumed>) = 0 [pid 5079] mkdir("./12", 0777 [pid 5074] umount2("./12", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] openat(AT_FDCWD, "./12", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] <... mkdir resumed>) = 0 [pid 5074] <... openat resumed>) = 3 [pid 5079] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5074] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5074] umount2("./12/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] <... openat resumed>) = 3 [pid 5074] lstat("./12/binderfs", [pid 5079] ioctl(3, LOOP_CLR_FD [pid 5074] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5074] unlink("./12/binderfs" [pid 5079] close(3 [pid 5074] <... unlink resumed>) = 0 [pid 5079] <... close resumed>) = 0 [pid 5074] umount2("./12/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5323 attached [pid 5323] set_robust_list(0x5555571745e0, 24 [pid 5079] <... clone resumed>, child_tidptr=0x5555571745d0) = 5323 [ 77.309143][ T5317] REISERFS (device loop4): using ordered data mode [pid 5323] <... set_robust_list resumed>) = 0 [pid 5323] chdir("./12") = 0 [pid 5323] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5323] setpgid(0, 0) = 0 [pid 5323] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5323] write(3, "1000", 4) = 4 [pid 5323] close(3) = 0 [pid 5323] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5323] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5323] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [ 77.366979][ T5317] reiserfs: using flush barriers [pid 5323] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5323] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5319] <... write resumed>) = 4194304 [pid 5319] munmap(0x7fdb6a513000, 4194304 [pid 5323] <... clone resumed>, parent_tid=[5324], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5324 [pid 5319] <... munmap resumed>) = 0 [pid 5323] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5319] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5323] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5319] <... openat resumed>) = 4 [pid 5319] ioctl(4, LOOP_SET_FD, 3./strace-static-x86_64: Process 5324 attached [pid 5324] set_robust_list(0x7fdb729339e0, 24 [pid 5319] <... ioctl resumed>) = 0 [pid 5324] <... set_robust_list resumed>) = 0 [pid 5319] close(3) = 0 [pid 5319] mkdir("./file0", 0777 [pid 5077] <... umount2 resumed>) = 0 [pid 5324] memfd_create("syzkaller", 0 [pid 5077] umount2("./12/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] lstat("./12/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] umount2("./12/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] openat(AT_FDCWD, "./12/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5077] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5077] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5077] close(4) = 0 [pid 5077] rmdir("./12/file0") = 0 [pid 5324] <... memfd_create resumed>) = 3 [pid 5077] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5077] close(3 [pid 5324] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5322] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5319] <... mkdir resumed>) = 0 [pid 5077] <... close resumed>) = 0 [pid 5324] <... mmap resumed>) = 0x7fdb6a513000 [pid 5319] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5077] rmdir("./12") = 0 [ 77.408802][ T5317] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 77.440890][ T5319] loop1: detected capacity change from 0 to 8192 [pid 5077] mkdir("./13", 0777) = 0 [pid 5077] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5077] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5077] close(3) = 0 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5326 ./strace-static-x86_64: Process 5326 attached [pid 5326] set_robust_list(0x5555571745e0, 24) = 0 [pid 5326] chdir("./13") = 0 [pid 5326] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5326] setpgid(0, 0) = 0 [pid 5326] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5326] write(3, "1000", 4) = 4 [pid 5326] close(3) = 0 [pid 5326] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5326] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5326] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5326] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5326] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5327], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5327 [pid 5326] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5326] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5327 attached [pid 5327] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5327] memfd_create("syzkaller", 0) = 3 [pid 5327] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [ 77.511118][ T5317] REISERFS (device loop4): checking transaction log (loop4) [ 77.519230][ T5319] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5324] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5074] <... umount2 resumed>) = 0 [pid 5074] umount2("./12/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] lstat("./12/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] umount2("./12/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] openat(AT_FDCWD, "./12/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5074] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [ 77.567516][ T5319] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [pid 5074] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5074] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5074] close(4) = 0 [pid 5074] rmdir("./12/file0") = 0 [pid 5074] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5074] close(3) = 0 [pid 5074] rmdir("./12") = 0 [pid 5074] mkdir("./13", 0777) = 0 [pid 5074] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5322] <... write resumed>) = 4194304 [pid 5074] ioctl(3, LOOP_CLR_FD [pid 5322] munmap(0x7fdb6a513000, 4194304 [pid 5074] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5322] <... munmap resumed>) = 0 [pid 5074] close(3 [pid 5322] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5074] <... close resumed>) = 0 [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5328 ./strace-static-x86_64: Process 5328 attached [pid 5324] <... write resumed>) = 4194304 [pid 5322] <... openat resumed>) = 4 [ 77.631332][ T5319] REISERFS (device loop1): using ordered data mode [pid 5328] set_robust_list(0x5555571745e0, 24 [pid 5322] ioctl(4, LOOP_SET_FD, 3 [pid 5328] <... set_robust_list resumed>) = 0 [pid 5322] <... ioctl resumed>) = 0 [pid 5328] chdir("./13" [pid 5327] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5328] <... chdir resumed>) = 0 [pid 5324] munmap(0x7fdb6a513000, 4194304 [pid 5328] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5324] <... munmap resumed>) = 0 [pid 5328] setpgid(0, 0) = 0 [pid 5328] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5324] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5328] <... openat resumed>) = 3 [pid 5324] <... openat resumed>) = 4 [pid 5328] write(3, "1000", 4 [pid 5322] close(3 [pid 5328] <... write resumed>) = 4 [pid 5322] <... close resumed>) = 0 [pid 5322] mkdir("./file0", 0777 [pid 5328] close(3 [pid 5324] ioctl(4, LOOP_SET_FD, 3 [pid 5322] <... mkdir resumed>) = 0 [pid 5328] <... close resumed>) = 0 [pid 5322] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5328] symlink("/dev/binderfs", "./binderfs" [pid 5324] <... ioctl resumed>) = 0 [ 77.685974][ T5319] reiserfs: using flush barriers [ 77.695452][ T5322] loop2: detected capacity change from 0 to 8192 [ 77.723098][ T5324] loop5: detected capacity change from 0 to 8192 [pid 5328] <... symlink resumed>) = 0 [pid 5324] close(3 [pid 5328] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5324] <... close resumed>) = 0 [pid 5328] <... futex resumed>) = 0 [pid 5324] mkdir("./file0", 0777 [pid 5328] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5324] <... mkdir resumed>) = 0 [pid 5328] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5324] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5328] <... mprotect resumed>) = 0 [pid 5328] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5331], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5331 [pid 5328] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 77.735371][ T5319] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 77.756709][ T5322] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5328] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5331 attached [pid 5331] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5331] memfd_create("syzkaller", 0) = 3 [pid 5331] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [ 77.782139][ T5324] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 77.813393][ T5324] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 77.822817][ T5324] REISERFS (device loop5): using ordered data mode [ 77.833441][ T5324] reiserfs: using flush barriers [ 77.835240][ T5322] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 77.848096][ T5324] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 77.866259][ T5319] REISERFS (device loop1): checking transaction log (loop1) [pid 5331] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5327] <... write resumed>) = 4194304 [pid 5327] munmap(0x7fdb6a513000, 4194304) = 0 [pid 5327] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [ 77.924406][ T5322] REISERFS (device loop2): using ordered data mode [ 77.933040][ T5324] REISERFS (device loop5): checking transaction log (loop5) [ 77.944343][ T5317] REISERFS (device loop4): Using r5 hash to sort names [ 77.951672][ T5317] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 77.965478][ T5327] loop3: detected capacity change from 0 to 8192 [pid 5327] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5327] close(3) = 0 [pid 5327] mkdir("./file0", 0777) = 0 [pid 5327] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5317] <... mount resumed>) = 0 [pid 5317] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5317] chdir("./file0") = 0 [pid 5317] ioctl(4, LOOP_CLR_FD) = 0 [ 77.972434][ T5322] reiserfs: using flush barriers [ 77.977567][ T5319] REISERFS (device loop1): Using r5 hash to sort names [ 77.993983][ T5322] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 78.003717][ T5319] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [pid 5317] close(4 [pid 5331] <... write resumed>) = 4194304 [pid 5319] <... mount resumed>) = 0 [pid 5331] munmap(0x7fdb6a513000, 4194304 [pid 5319] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5317] <... close resumed>) = 0 [pid 5317] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5331] <... munmap resumed>) = 0 [pid 5331] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5319] <... openat resumed>) = 3 [pid 5316] <... futex resumed>) = 0 [pid 5316] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5316] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5317] <... futex resumed>) = 1 [pid 5317] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5331] <... openat resumed>) = 4 [pid 5319] chdir("./file0" [pid 5317] <... open resumed>) = 4 [pid 5331] ioctl(4, LOOP_SET_FD, 3 [pid 5319] <... chdir resumed>) = 0 [pid 5319] ioctl(4, LOOP_CLR_FD [pid 5317] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5319] <... ioctl resumed>) = 0 [pid 5317] <... futex resumed>) = 1 [pid 5316] <... futex resumed>) = 0 [pid 5331] <... ioctl resumed>) = 0 [pid 5319] close(4 [pid 5317] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5316] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5319] <... close resumed>) = 0 [pid 5317] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5316] <... futex resumed>) = 0 [pid 5319] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5317] ioctl(4, FS_IOC_GETVERSION [pid 5316] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5319] <... futex resumed>) = 1 [pid 5317] <... ioctl resumed>, 0x20000080) = 0 [pid 5331] close(3 [ 78.024575][ T5327] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 78.030557][ T5322] REISERFS (device loop2): checking transaction log (loop2) [ 78.052241][ T5331] loop0: detected capacity change from 0 to 8192 [ 78.061184][ T5327] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [pid 5319] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5317] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5331] <... close resumed>) = 0 [pid 5318] <... futex resumed>) = 0 [pid 5317] <... futex resumed>) = 1 [pid 5316] <... futex resumed>) = 0 [pid 5331] mkdir("./file0", 0777 [pid 5318] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5317] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5316] exit_group(0 [pid 5317] <... futex resumed>) = ? [pid 5316] <... exit_group resumed>) = ? [pid 5317] +++ exited with 0 +++ [pid 5316] +++ exited with 0 +++ [pid 5331] <... mkdir resumed>) = 0 [pid 5319] <... futex resumed>) = 0 [pid 5318] <... futex resumed>) = 1 [pid 5331] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5319] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5318] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5078] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5316, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- [pid 5319] <... open resumed>) = 4 [pid 5319] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5319] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5318] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5078] umount2("./13", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5318] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5319] <... futex resumed>) = 0 [pid 5318] <... futex resumed>) = 1 [pid 5078] openat(AT_FDCWD, "./13", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5319] ioctl(4, FS_IOC_GETVERSION [pid 5318] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5078] <... openat resumed>) = 3 [pid 5319] <... ioctl resumed>, 0x20000080) = 0 [pid 5078] fstat(3, [ 78.073815][ T5327] REISERFS (device loop3): using ordered data mode [ 78.080411][ T5327] reiserfs: using flush barriers [ 78.086908][ T5327] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 78.105683][ T5327] REISERFS (device loop3): checking transaction log (loop3) [pid 5319] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5319] <... futex resumed>) = 1 [pid 5319] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5318] <... futex resumed>) = 0 [pid 5078] getdents64(3, [pid 5318] exit_group(0 [pid 5078] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5319] <... futex resumed>) = ? [pid 5318] <... exit_group resumed>) = ? [pid 5078] umount2("./13/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5319] +++ exited with 0 +++ [pid 5318] +++ exited with 0 +++ [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5078] lstat("./13/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5318, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=17 /* 0.17 s */} --- [pid 5078] unlink("./13/binderfs" [pid 5075] umount2("./13", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5078] <... unlink resumed>) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5078] umount2("./13/file0", MNT_DETACH|UMOUNT_NOFOLLOW [ 78.138360][ T5331] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 78.152106][ T5331] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 78.162078][ T5331] REISERFS (device loop0): using ordered data mode [ 78.168712][ T5331] reiserfs: using flush barriers [pid 5075] openat(AT_FDCWD, "./13", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5075] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5075] umount2("./13/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5075] lstat("./13/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] unlink("./13/binderfs") = 0 [ 78.183428][ T5331] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 78.203403][ T5331] REISERFS (device loop0): checking transaction log (loop0) [ 78.235257][ T5327] REISERFS (device loop3): Using r5 hash to sort names [ 78.246467][ T5327] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [pid 5075] umount2("./13/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5327] <... mount resumed>) = 0 [pid 5327] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5327] chdir("./file0") = 0 [pid 5327] ioctl(4, LOOP_CLR_FD) = 0 [pid 5327] close(4) = 0 [ 78.313972][ T5324] REISERFS (device loop5): Using r5 hash to sort names [ 78.322061][ T5324] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 5327] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5324] <... mount resumed>) = 0 [pid 5327] <... futex resumed>) = 1 [pid 5326] <... futex resumed>) = 0 [pid 5324] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5327] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5326] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5324] <... openat resumed>) = 3 [pid 5327] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5326] <... futex resumed>) = 0 [pid 5324] chdir("./file0" [pid 5327] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5326] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5324] <... chdir resumed>) = 0 [pid 5327] <... open resumed>) = 4 [pid 5324] ioctl(4, LOOP_CLR_FD [pid 5327] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5324] <... ioctl resumed>) = 0 [pid 5078] <... umount2 resumed>) = 0 [pid 5327] <... futex resumed>) = 1 [pid 5326] <... futex resumed>) = 0 [pid 5327] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5326] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5324] close(4 [pid 5327] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5326] <... futex resumed>) = 0 [pid 5324] <... close resumed>) = 0 [pid 5327] ioctl(4, FS_IOC_GETVERSION [pid 5326] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5324] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5327] <... ioctl resumed>, 0x20000080) = 0 [pid 5324] <... futex resumed>) = 1 [pid 5323] <... futex resumed>) = 0 [pid 5327] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5324] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5323] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] umount2("./13/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5327] <... futex resumed>) = 1 [pid 5326] <... futex resumed>) = 0 [pid 5324] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5323] <... futex resumed>) = 0 [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5327] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5326] exit_group(0 [pid 5324] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5323] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5327] <... futex resumed>) = ? [pid 5326] <... exit_group resumed>) = ? [pid 5324] <... open resumed>) = 4 [pid 5078] lstat("./13/file0", [pid 5327] +++ exited with 0 +++ [pid 5326] +++ exited with 0 +++ [pid 5324] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5323] <... futex resumed>) = 0 [pid 5078] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5326, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=17 /* 0.17 s */} --- [pid 5324] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5323] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] umount2("./13/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] restart_syscall(<... resuming interrupted clone ...> [pid 5324] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5323] <... futex resumed>) = 0 [pid 5077] <... restart_syscall resumed>) = 0 [pid 5077] umount2("./13", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] openat(AT_FDCWD, "./13", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5077] fstat(3, [pid 5324] ioctl(4, FS_IOC_GETVERSION [pid 5323] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5331] <... mount resumed>) = 0 [pid 5324] <... ioctl resumed>, 0x20000080) = 0 [pid 5078] openat(AT_FDCWD, "./13/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] getdents64(3, [pid 5075] <... umount2 resumed>) = 0 [pid 5331] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5324] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] <... openat resumed>) = 4 [pid 5077] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5075] umount2("./13/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5331] <... openat resumed>) = 3 [pid 5324] <... futex resumed>) = 1 [pid 5323] <... futex resumed>) = 0 [pid 5078] fstat(4, [pid 5077] umount2("./13/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5331] chdir("./file0" [pid 5324] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5323] exit_group(0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] lstat("./13/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] unlink("./13/binderfs") = 0 [pid 5077] umount2("./13/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5078] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5078] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5078] close(4) = 0 [pid 5078] rmdir("./13/file0" [pid 5331] <... chdir resumed>) = 0 [pid 5324] <... futex resumed>) = ? [pid 5323] <... exit_group resumed>) = ? [pid 5322] <... mount resumed>) = 0 [pid 5078] <... rmdir resumed>) = 0 [pid 5075] lstat("./13/file0", [pid 5331] ioctl(4, LOOP_CLR_FD [pid 5324] +++ exited with 0 +++ [pid 5323] +++ exited with 0 +++ [pid 5322] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5078] getdents64(3, [pid 5075] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5331] <... ioctl resumed>) = 0 [pid 5322] <... openat resumed>) = 3 [pid 5078] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5075] umount2("./13/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5331] close(4 [pid 5322] chdir("./file0" [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5323, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} --- [pid 5078] close(3 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5331] <... close resumed>) = 0 [pid 5322] <... chdir resumed>) = 0 [pid 5079] umount2("./12", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5078] <... close resumed>) = 0 [pid 5075] openat(AT_FDCWD, "./13/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5331] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5322] ioctl(4, LOOP_CLR_FD [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5078] rmdir("./13" [pid 5331] <... futex resumed>) = 1 [pid 5328] <... futex resumed>) = 0 [pid 5322] <... ioctl resumed>) = 0 [pid 5079] openat(AT_FDCWD, "./12", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5078] <... rmdir resumed>) = 0 [pid 5075] <... openat resumed>) = 4 [pid 5331] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5328] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5322] close(4 [pid 5079] <... openat resumed>) = 3 [pid 5078] mkdir("./14", 0777 [pid 5075] fstat(4, [pid 5331] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5328] <... futex resumed>) = 0 [pid 5322] <... close resumed>) = 0 [ 78.447125][ T5331] REISERFS (device loop0): Using r5 hash to sort names [ 78.455377][ T5331] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 78.467327][ T5322] REISERFS (device loop2): Using r5 hash to sort names [ 78.479292][ T5322] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 5079] fstat(3, [pid 5078] <... mkdir resumed>) = 0 [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5331] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5328] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5322] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] getdents64(4, [pid 5331] <... open resumed>) = 4 [pid 5322] <... futex resumed>) = 1 [pid 5321] <... futex resumed>) = 0 [pid 5079] getdents64(3, [pid 5078] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5075] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5331] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5322] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5075] getdents64(4, [pid 5331] <... futex resumed>) = 1 [pid 5328] <... futex resumed>) = 0 [pid 5075] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5331] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5328] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5075] close(4 [pid 5331] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5328] <... futex resumed>) = 0 [pid 5321] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5075] <... close resumed>) = 0 [pid 5331] ioctl(4, FS_IOC_GETVERSION [pid 5328] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5322] <... futex resumed>) = 0 [pid 5321] <... futex resumed>) = 1 [pid 5079] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5078] <... openat resumed>) = 3 [pid 5075] rmdir("./13/file0" [pid 5331] <... ioctl resumed>, 0x20000080) = 0 [pid 5322] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5321] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5079] umount2("./12/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5078] ioctl(3, LOOP_CLR_FD [pid 5075] <... rmdir resumed>) = 0 [pid 5331] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5322] <... open resumed>) = 4 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5078] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5075] getdents64(3, [pid 5331] <... futex resumed>) = 1 [pid 5328] <... futex resumed>) = 0 [pid 5322] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] lstat("./12/binderfs", [pid 5078] close(3 [pid 5075] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5331] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5328] exit_group(0 [pid 5322] <... futex resumed>) = 1 [pid 5321] <... futex resumed>) = 0 [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] close(3 [pid 5331] <... futex resumed>) = ? [pid 5328] <... exit_group resumed>) = ? [pid 5322] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5321] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] unlink("./12/binderfs" [pid 5078] <... close resumed>) = 0 [pid 5075] <... close resumed>) = 0 [pid 5331] +++ exited with 0 +++ [pid 5328] +++ exited with 0 +++ [pid 5322] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5321] <... futex resumed>) = 0 [pid 5075] rmdir("./13" [pid 5322] ioctl(4, FS_IOC_GETVERSION [pid 5321] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5079] <... unlink resumed>) = 0 [pid 5078] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] <... rmdir resumed>) = 0 [pid 5322] <... ioctl resumed>, 0x20000080) = 0 [pid 5079] umount2("./12/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] mkdir("./14", 0777 [pid 5322] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5075] <... mkdir resumed>) = 0 [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5328, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=20 /* 0.20 s */} --- [pid 5322] <... futex resumed>) = 1 [pid 5075] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5322] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5075] <... openat resumed>) = 3 [pid 5075] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5075] close(3) = 0 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5321] <... futex resumed>) = 0 [pid 5078] <... clone resumed>, child_tidptr=0x5555571745d0) = 5334 [pid 5074] umount2("./13", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5321] exit_group(0 [pid 5075] <... clone resumed>, child_tidptr=0x5555571745d0) = 5335 [pid 5322] <... futex resumed>) = ? [pid 5321] <... exit_group resumed>) = ? [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5334 attached [pid 5322] +++ exited with 0 +++ [pid 5334] set_robust_list(0x5555571745e0, 24) = 0 [pid 5334] chdir("./14") = 0 [pid 5334] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5321] +++ exited with 0 +++ [pid 5334] setpgid(0, 0 [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5321, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=18 /* 0.18 s */} --- [pid 5334] <... setpgid resumed>) = 0 [pid 5074] openat(AT_FDCWD, "./13", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5334] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5074] <... openat resumed>) = 3 [pid 5334] write(3, "1000", 4) = 4 [pid 5076] umount2("./13", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] fstat(3, [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] openat(AT_FDCWD, "./13", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5074] getdents64(3, ./strace-static-x86_64: Process 5335 attached [pid 5334] close(3 [pid 5074] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5335] set_robust_list(0x5555571745e0, 24 [pid 5334] <... close resumed>) = 0 [pid 5076] <... openat resumed>) = 3 [pid 5074] umount2("./13/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5335] <... set_robust_list resumed>) = 0 [pid 5334] symlink("/dev/binderfs", "./binderfs" [pid 5076] fstat(3, [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5335] chdir("./14" [pid 5334] <... symlink resumed>) = 0 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] lstat("./13/binderfs", [pid 5335] <... chdir resumed>) = 0 [pid 5334] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5076] getdents64(3, [pid 5074] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5335] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5334] <... futex resumed>) = 0 [pid 5076] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5074] unlink("./13/binderfs" [pid 5335] <... prctl resumed>) = 0 [pid 5334] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5076] umount2("./13/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5335] setpgid(0, 0 [pid 5334] <... mmap resumed>) = 0x7fdb72913000 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] <... unlink resumed>) = 0 [pid 5335] <... setpgid resumed>) = 0 [pid 5334] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5335] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5334] <... mprotect resumed>) = 0 [pid 5076] lstat("./13/binderfs", [pid 5074] umount2("./13/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5335] <... openat resumed>) = 3 [pid 5334] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5335] write(3, "1000", 4 [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5335] <... write resumed>) = 4 [pid 5334] <... clone resumed>, parent_tid=[5336], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5336 [pid 5335] close(3 [pid 5334] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5076] unlink("./13/binderfs" [pid 5335] <... close resumed>) = 0 [pid 5334] <... futex resumed>) = 0 [pid 5335] symlink("/dev/binderfs", "./binderfs" [pid 5334] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5076] <... unlink resumed>) = 0 ./strace-static-x86_64: Process 5336 attached [pid 5335] <... symlink resumed>) = 0 [pid 5077] <... umount2 resumed>) = 0 [pid 5336] set_robust_list(0x7fdb729339e0, 24 [pid 5335] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] umount2("./13/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] umount2("./13/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5335] <... futex resumed>) = 0 [pid 5335] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5336] <... set_robust_list resumed>) = 0 [pid 5335] <... mmap resumed>) = 0x7fdb72913000 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5335] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5335] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5336] memfd_create("syzkaller", 0) = 3 [pid 5335] <... clone resumed>, parent_tid=[5337], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5337 [pid 5077] lstat("./13/file0", [pid 5336] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5335] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5336] <... mmap resumed>) = 0x7fdb6a513000 [pid 5335] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5077] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] umount2("./13/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] openat(AT_FDCWD, "./13/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5077] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5077] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5077] close(4) = 0 [pid 5077] rmdir("./13/file0") = 0 [pid 5077] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5077] close(3) = 0 [pid 5077] rmdir("./13") = 0 [pid 5077] mkdir("./14", 0777) = 0 ./strace-static-x86_64: Process 5337 attached [pid 5077] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5337] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5077] <... openat resumed>) = 3 [pid 5337] memfd_create("syzkaller", 0 [pid 5077] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5077] close(3 [pid 5337] <... memfd_create resumed>) = 3 [pid 5077] <... close resumed>) = 0 [pid 5337] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5337] <... mmap resumed>) = 0x7fdb6a513000 [pid 5077] <... clone resumed>, child_tidptr=0x5555571745d0) = 5338 ./strace-static-x86_64: Process 5338 attached [pid 5338] set_robust_list(0x5555571745e0, 24) = 0 [pid 5338] chdir("./14") = 0 [pid 5338] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5338] setpgid(0, 0) = 0 [pid 5338] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5338] write(3, "1000", 4) = 4 [pid 5338] close(3) = 0 [pid 5338] symlink("/dev/binderfs", "./binderfs" [pid 5076] <... umount2 resumed>) = 0 [pid 5338] <... symlink resumed>) = 0 [pid 5338] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5076] umount2("./13/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5338] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5338] <... mmap resumed>) = 0x7fdb72913000 [pid 5338] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5076] lstat("./13/file0", [pid 5338] <... mprotect resumed>) = 0 [pid 5076] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5338] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5076] umount2("./13/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5338] <... clone resumed>, parent_tid=[5339], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5339 [pid 5076] openat(AT_FDCWD, "./13/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5338] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5076] <... openat resumed>) = 4 [pid 5338] <... futex resumed>) = 0 [pid 5076] fstat(4, [pid 5338] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 ./strace-static-x86_64: Process 5339 attached [pid 5076] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5076] close(4 [pid 5339] set_robust_list(0x7fdb729339e0, 24 [pid 5076] <... close resumed>) = 0 [pid 5339] <... set_robust_list resumed>) = 0 [pid 5079] <... umount2 resumed>) = 0 [pid 5076] rmdir("./13/file0" [pid 5339] memfd_create("syzkaller", 0 [pid 5076] <... rmdir resumed>) = 0 [pid 5339] <... memfd_create resumed>) = 3 [pid 5076] getdents64(3, [pid 5339] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5076] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5339] <... mmap resumed>) = 0x7fdb6a513000 [pid 5076] close(3 [pid 5336] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5076] <... close resumed>) = 0 [pid 5076] rmdir("./13") = 0 [pid 5076] mkdir("./14", 0777) = 0 [pid 5076] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5079] umount2("./12/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] lstat("./12/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] umount2("./12/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./12/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5079] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5079] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5079] close(4) = 0 [pid 5079] rmdir("./12/file0") = 0 [pid 5079] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5079] close(3) = 0 [pid 5079] rmdir("./12") = 0 [pid 5079] mkdir("./13", 0777) = 0 [pid 5079] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5079] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5079] close(3 [pid 5337] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5079] <... close resumed>) = 0 [pid 5074] <... umount2 resumed>) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5074] umount2("./13/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] lstat("./13/file0", [pid 5339] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5079] <... clone resumed>, child_tidptr=0x5555571745d0) = 5340 ./strace-static-x86_64: Process 5340 attached [pid 5074] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5340] set_robust_list(0x5555571745e0, 24) = 0 [pid 5074] umount2("./13/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5340] chdir("./13" [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5340] <... chdir resumed>) = 0 [pid 5340] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5074] openat(AT_FDCWD, "./13/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5340] <... prctl resumed>) = 0 [pid 5076] <... openat resumed>) = 3 [pid 5074] <... openat resumed>) = 4 [pid 5340] setpgid(0, 0 [pid 5076] ioctl(3, LOOP_CLR_FD [pid 5074] fstat(4, [pid 5340] <... setpgid resumed>) = 0 [pid 5076] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5340] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5076] close(3 [pid 5074] getdents64(4, [pid 5340] <... openat resumed>) = 3 [pid 5076] <... close resumed>) = 0 [pid 5074] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5340] write(3, "1000", 4 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5074] getdents64(4, [pid 5340] <... write resumed>) = 4 [pid 5074] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5340] close(3 [pid 5074] close(4 [pid 5340] <... close resumed>) = 0 [pid 5076] <... clone resumed>, child_tidptr=0x5555571745d0) = 5341 [pid 5074] <... close resumed>) = 0 [pid 5340] symlink("/dev/binderfs", "./binderfs" [pid 5074] rmdir("./13/file0" [pid 5340] <... symlink resumed>) = 0 [pid 5074] <... rmdir resumed>) = 0 ./strace-static-x86_64: Process 5341 attached [pid 5340] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5074] getdents64(3, [pid 5341] set_robust_list(0x5555571745e0, 24 [pid 5340] <... futex resumed>) = 0 [pid 5074] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5341] <... set_robust_list resumed>) = 0 [pid 5340] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5074] close(3 [pid 5341] chdir("./14" [pid 5340] <... mmap resumed>) = 0x7fdb72913000 [pid 5074] <... close resumed>) = 0 [pid 5341] <... chdir resumed>) = 0 [pid 5340] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5074] rmdir("./13" [pid 5341] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5340] <... mprotect resumed>) = 0 [pid 5074] <... rmdir resumed>) = 0 [pid 5341] <... prctl resumed>) = 0 [pid 5340] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5074] mkdir("./14", 0777 [pid 5341] setpgid(0, 0 [pid 5074] <... mkdir resumed>) = 0 [pid 5341] <... setpgid resumed>) = 0 [pid 5340] <... clone resumed>, parent_tid=[5342], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5342 [pid 5074] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5341] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5340] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5074] <... openat resumed>) = 3 [pid 5341] <... openat resumed>) = 3 [pid 5340] <... futex resumed>) = 0 [pid 5074] ioctl(3, LOOP_CLR_FD [pid 5341] write(3, "1000", 4 [pid 5340] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5074] <... ioctl resumed>) = -1 ENXIO (No such device or address) ./strace-static-x86_64: Process 5342 attached [pid 5341] <... write resumed>) = 4 [pid 5074] close(3 [pid 5342] set_robust_list(0x7fdb729339e0, 24 [pid 5341] close(3 [pid 5074] <... close resumed>) = 0 [pid 5341] <... close resumed>) = 0 [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5342] <... set_robust_list resumed>) = 0 [pid 5341] symlink("/dev/binderfs", "./binderfs" [pid 5342] memfd_create("syzkaller", 0 [pid 5341] <... symlink resumed>) = 0 [pid 5074] <... clone resumed>, child_tidptr=0x5555571745d0) = 5343 [pid 5342] <... memfd_create resumed>) = 3 [pid 5341] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5342] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5341] <... futex resumed>) = 0 [pid 5342] <... mmap resumed>) = 0x7fdb6a513000 [pid 5341] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0./strace-static-x86_64: Process 5343 attached ) = 0x7fdb72913000 [pid 5343] set_robust_list(0x5555571745e0, 24 [pid 5341] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5343] <... set_robust_list resumed>) = 0 [pid 5341] <... mprotect resumed>) = 0 [pid 5343] chdir("./14" [pid 5341] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5343] <... chdir resumed>) = 0 [pid 5343] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5341] <... clone resumed>, parent_tid=[5344], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5344 [pid 5343] <... prctl resumed>) = 0 [pid 5341] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5343] setpgid(0, 0 [pid 5341] <... futex resumed>) = 0 [pid 5343] <... setpgid resumed>) = 0 [pid 5341] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5343] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 5344 attached ) = 3 [pid 5344] set_robust_list(0x7fdb729339e0, 24 [pid 5343] write(3, "1000", 4 [pid 5344] <... set_robust_list resumed>) = 0 [pid 5343] <... write resumed>) = 4 [pid 5343] close(3 [pid 5344] memfd_create("syzkaller", 0 [pid 5343] <... close resumed>) = 0 [pid 5343] symlink("/dev/binderfs", "./binderfs" [pid 5344] <... memfd_create resumed>) = 3 [pid 5343] <... symlink resumed>) = 0 [pid 5344] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5343] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5344] <... mmap resumed>) = 0x7fdb6a513000 [pid 5343] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5343] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5343] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5345], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5345 [pid 5343] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5343] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5336] <... write resumed>) = 4194304 [pid 5336] munmap(0x7fdb6a513000, 4194304./strace-static-x86_64: Process 5345 attached ) = 0 [pid 5345] set_robust_list(0x7fdb729339e0, 24 [pid 5336] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5345] <... set_robust_list resumed>) = 0 [pid 5345] memfd_create("syzkaller", 0 [pid 5336] <... openat resumed>) = 4 [pid 5345] <... memfd_create resumed>) = 3 [pid 5336] ioctl(4, LOOP_SET_FD, 3 [pid 5345] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [pid 5336] <... ioctl resumed>) = 0 [pid 5337] <... write resumed>) = 4194304 [pid 5336] close(3 [pid 5337] munmap(0x7fdb6a513000, 4194304 [pid 5336] <... close resumed>) = 0 [pid 5337] <... munmap resumed>) = 0 [pid 5336] mkdir("./file0", 0777 [pid 5342] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5339] <... write resumed>) = 4194304 [pid 5337] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5336] <... mkdir resumed>) = 0 [ 78.928964][ T5336] loop4: detected capacity change from 0 to 8192 [pid 5337] <... openat resumed>) = 4 [pid 5336] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5337] ioctl(4, LOOP_SET_FD, 3 [pid 5339] munmap(0x7fdb6a513000, 4194304) = 0 [pid 5339] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 5339] ioctl(4, LOOP_SET_FD, 3 [pid 5344] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5337] <... ioctl resumed>) = 0 [pid 5337] close(3) = 0 [pid 5337] mkdir("./file0", 0777) = 0 [pid 5337] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5339] <... ioctl resumed>) = 0 [pid 5339] close(3) = 0 [pid 5339] mkdir("./file0", 0777) = 0 [ 78.992932][ T5337] loop1: detected capacity change from 0 to 8192 [ 79.005669][ T5339] loop3: detected capacity change from 0 to 8192 [ 79.025071][ T5336] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5339] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5342] <... write resumed>) = 4194304 [pid 5342] munmap(0x7fdb6a513000, 4194304 [ 79.039996][ T5337] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 79.057287][ T5339] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 79.063445][ T5336] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 79.075504][ T5337] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [pid 5345] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5342] <... munmap resumed>) = 0 [pid 5342] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 5342] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5342] close(3) = 0 [ 79.080441][ T5336] REISERFS (device loop4): using ordered data mode [ 79.096795][ T5336] reiserfs: using flush barriers [ 79.102600][ T5342] loop5: detected capacity change from 0 to 8192 [ 79.109934][ T5339] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 79.115280][ T5336] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 79.119810][ T5339] REISERFS (device loop3): using ordered data mode [pid 5342] mkdir("./file0", 0777) = 0 [pid 5342] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5344] <... write resumed>) = 4194304 [pid 5344] munmap(0x7fdb6a513000, 4194304) = 0 [ 79.142678][ T5339] reiserfs: using flush barriers [ 79.149300][ T5339] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 79.166749][ T5339] REISERFS (device loop3): checking transaction log (loop3) [ 79.173894][ T5342] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 79.181362][ T5337] REISERFS (device loop1): using ordered data mode [pid 5344] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5344] ioctl(4, LOOP_SET_FD, 3) = 0 [ 79.212714][ T5336] REISERFS (device loop4): checking transaction log (loop4) [ 79.216873][ T5344] loop2: detected capacity change from 0 to 8192 [ 79.223732][ T5337] reiserfs: using flush barriers [ 79.226765][ T5342] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [pid 5345] <... write resumed>) = 4194304 [pid 5344] close(3) = 0 [pid 5344] mkdir("./file0", 0777) = 0 [pid 5344] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC, "" [ 79.253432][ T5337] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 79.280047][ T5342] REISERFS (device loop5): using ordered data mode [ 79.296410][ T5344] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5345] munmap(0x7fdb6a513000, 4194304) = 0 [pid 5345] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [ 79.301198][ T5337] REISERFS (device loop1): checking transaction log (loop1) [ 79.328667][ T5345] loop0: detected capacity change from 0 to 8192 [ 79.344413][ T5342] reiserfs: using flush barriers [ 79.344570][ T5339] REISERFS (device loop3): Using r5 hash to sort names [pid 5345] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5345] close(3) = 0 [pid 5345] mkdir("./file0", 0777) = 0 [ 79.350972][ T5344] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 79.377067][ T5342] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 79.382180][ T5339] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 79.405085][ T5344] REISERFS (device loop2): using ordered data mode [pid 5345] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5339] <... mount resumed>) = 0 [pid 5339] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5339] chdir("./file0") = 0 [ 79.412911][ T5345] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 79.427347][ T5344] reiserfs: using flush barriers [pid 5339] ioctl(4, LOOP_CLR_FD) = 0 [pid 5339] close(4) = 0 [pid 5336] <... mount resumed>) = 0 [pid 5339] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5338] <... futex resumed>) = 0 [pid 5339] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5338] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5339] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5338] <... futex resumed>) = 0 [pid 5339] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5338] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5339] <... open resumed>) = 4 [ 79.455662][ T5336] REISERFS (device loop4): Using r5 hash to sort names [ 79.459061][ T5342] REISERFS (device loop5): checking transaction log (loop5) [ 79.465944][ T5336] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 79.481639][ T5344] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5339] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5338] <... futex resumed>) = 0 [pid 5336] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5339] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5338] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5336] <... openat resumed>) = 3 [pid 5339] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5338] <... futex resumed>) = 0 [pid 5336] chdir("./file0" [pid 5339] ioctl(4, FS_IOC_GETVERSION [pid 5338] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5336] <... chdir resumed>) = 0 [pid 5339] <... ioctl resumed>, 0x20000080) = 0 [pid 5336] ioctl(4, LOOP_CLR_FD [pid 5339] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5336] <... ioctl resumed>) = 0 [pid 5339] <... futex resumed>) = 1 [pid 5338] <... futex resumed>) = 0 [pid 5336] close(4 [pid 5339] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5338] exit_group(0 [pid 5336] <... close resumed>) = 0 [pid 5339] <... futex resumed>) = ? [ 79.493162][ T5345] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [pid 5338] <... exit_group resumed>) = ? [pid 5336] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5339] +++ exited with 0 +++ [pid 5338] +++ exited with 0 +++ [pid 5336] <... futex resumed>) = 1 [pid 5334] <... futex resumed>) = 0 [pid 5336] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5334] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5338, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=15 /* 0.15 s */} --- [pid 5336] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5334] <... futex resumed>) = 0 [pid 5336] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5334] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5336] <... open resumed>) = 4 [pid 5336] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5334] <... futex resumed>) = 0 [pid 5336] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5334] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] umount2("./14", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5336] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5334] <... futex resumed>) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5336] ioctl(4, FS_IOC_GETVERSION [pid 5334] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5077] openat(AT_FDCWD, "./14", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5336] <... ioctl resumed>, 0x20000080) = 0 [pid 5336] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] <... openat resumed>) = 3 [pid 5336] <... futex resumed>) = 1 [pid 5334] <... futex resumed>) = 0 [pid 5077] fstat(3, [pid 5336] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5334] exit_group(0 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5336] <... futex resumed>) = ? [pid 5334] <... exit_group resumed>) = ? [pid 5077] getdents64(3, [pid 5336] +++ exited with 0 +++ [pid 5334] +++ exited with 0 +++ [pid 5077] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5078] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5334, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} --- [pid 5077] umount2("./14/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5078] umount2("./14", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] lstat("./14/binderfs", [pid 5078] openat(AT_FDCWD, "./14", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5078] <... openat resumed>) = 3 [pid 5077] unlink("./14/binderfs" [pid 5078] fstat(3, [pid 5077] <... unlink resumed>) = 0 [pid 5078] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] umount2("./14/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5078] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5078] umount2("./14/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5078] lstat("./14/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5078] unlink("./14/binderfs") = 0 [ 79.565068][ T5344] REISERFS (device loop2): checking transaction log (loop2) [ 79.586724][ T5345] REISERFS (device loop0): using ordered data mode [ 79.613042][ T5345] reiserfs: using flush barriers [ 79.627211][ T5337] REISERFS (device loop1): Using r5 hash to sort names [ 79.648935][ T5345] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5078] umount2("./14/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5337] <... mount resumed>) = 0 [pid 5337] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5337] chdir("./file0") = 0 [pid 5337] ioctl(4, LOOP_CLR_FD) = 0 [pid 5337] close(4) = 0 [pid 5337] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5335] <... futex resumed>) = 0 [pid 5337] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5335] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5337] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5335] <... futex resumed>) = 0 [pid 5337] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5335] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5337] <... open resumed>) = 4 [ 79.670774][ T5337] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 79.710127][ T5342] REISERFS (device loop5): Using r5 hash to sort names [pid 5337] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5335] <... futex resumed>) = 0 [pid 5337] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5335] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5337] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5335] <... futex resumed>) = 0 [pid 5337] ioctl(4, FS_IOC_GETVERSION [pid 5335] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5337] <... ioctl resumed>, 0x20000080) = 0 [pid 5337] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5335] <... futex resumed>) = 0 [pid 5337] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5335] exit_group(0 [pid 5337] <... futex resumed>) = ? [pid 5335] <... exit_group resumed>) = ? [pid 5337] +++ exited with 0 +++ [pid 5335] +++ exited with 0 +++ [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5335, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=20 /* 0.20 s */} --- [pid 5075] umount2("./14", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5075] openat(AT_FDCWD, "./14", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5075] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5075] umount2("./14/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5075] lstat("./14/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] unlink("./14/binderfs") = 0 [ 79.733576][ T5345] REISERFS (device loop0): checking transaction log (loop0) [ 79.769297][ T5342] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 5075] umount2("./14/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5342] <... mount resumed>) = 0 [pid 5342] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5342] chdir("./file0") = 0 [pid 5342] ioctl(4, LOOP_CLR_FD [pid 5078] <... umount2 resumed>) = 0 [pid 5077] <... umount2 resumed>) = 0 [pid 5342] <... ioctl resumed>) = 0 [pid 5342] close(4 [pid 5078] umount2("./14/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] umount2("./14/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5342] <... close resumed>) = 0 [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5342] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] lstat("./14/file0", [pid 5077] lstat("./14/file0", [pid 5342] <... futex resumed>) = 1 [pid 5340] <... futex resumed>) = 0 [pid 5342] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5340] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5342] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5340] <... futex resumed>) = 0 [pid 5342] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5340] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5078] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5342] <... open resumed>) = 4 [pid 5342] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5340] <... futex resumed>) = 0 [pid 5342] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5340] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5342] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5340] <... futex resumed>) = 0 [pid 5342] ioctl(4, FS_IOC_GETVERSION [pid 5340] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5342] <... ioctl resumed>, 0x20000080) = 0 [pid 5342] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] umount2("./14/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] umount2("./14/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5342] <... futex resumed>) = 1 [pid 5340] <... futex resumed>) = 0 [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5342] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5340] exit_group(0 [pid 5342] <... futex resumed>) = ? [pid 5340] <... exit_group resumed>) = ? [pid 5342] +++ exited with 0 +++ [pid 5340] +++ exited with 0 +++ [pid 5344] <... mount resumed>) = 0 [pid 5078] openat(AT_FDCWD, "./14/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] openat(AT_FDCWD, "./14/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5344] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5340, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=15 /* 0.15 s */} --- [pid 5078] <... openat resumed>) = 4 [pid 5077] <... openat resumed>) = 4 [pid 5344] <... openat resumed>) = 3 [pid 5079] umount2("./13", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5078] fstat(4, [ 79.858771][ T5344] REISERFS (device loop2): Using r5 hash to sort names [ 79.873927][ T5344] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 5077] fstat(4, [pid 5344] chdir("./file0" [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5078] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5344] <... chdir resumed>) = 0 [pid 5079] openat(AT_FDCWD, "./13", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5078] getdents64(4, [pid 5077] getdents64(4, [pid 5344] ioctl(4, LOOP_CLR_FD [pid 5079] <... openat resumed>) = 3 [pid 5078] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5077] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5344] <... ioctl resumed>) = 0 [pid 5079] fstat(3, [pid 5078] getdents64(4, [pid 5077] getdents64(4, [pid 5344] close(4 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5344] <... close resumed>) = 0 [pid 5079] getdents64(3, [pid 5078] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5077] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5344] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5078] close(4 [pid 5077] close(4 [pid 5344] <... futex resumed>) = 1 [pid 5341] <... futex resumed>) = 0 [pid 5079] umount2("./13/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5078] <... close resumed>) = 0 [pid 5077] <... close resumed>) = 0 [pid 5344] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5341] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5078] rmdir("./14/file0" [pid 5077] rmdir("./14/file0" [pid 5344] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5341] <... futex resumed>) = 0 [pid 5079] lstat("./13/binderfs", [pid 5344] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5341] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5078] <... rmdir resumed>) = 0 [pid 5077] <... rmdir resumed>) = 0 [pid 5344] <... open resumed>) = 4 [pid 5079] unlink("./13/binderfs" [pid 5078] getdents64(3, [pid 5077] getdents64(3, [pid 5344] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] <... unlink resumed>) = 0 [pid 5078] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5077] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5344] <... futex resumed>) = 1 [pid 5341] <... futex resumed>) = 0 [pid 5344] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5341] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] umount2("./13/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5078] close(3 [pid 5077] close(3 [pid 5344] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5341] <... futex resumed>) = 0 [pid 5341] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5078] <... close resumed>) = 0 [pid 5344] ioctl(4, FS_IOC_GETVERSION [pid 5077] <... close resumed>) = 0 [pid 5344] <... ioctl resumed>, 0x20000080) = 0 [pid 5078] rmdir("./14" [pid 5077] rmdir("./14" [pid 5344] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] <... rmdir resumed>) = 0 [pid 5344] <... futex resumed>) = 1 [pid 5341] <... futex resumed>) = 0 [pid 5078] mkdir("./15", 0777 [pid 5077] <... rmdir resumed>) = 0 [pid 5344] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5341] exit_group(0) = ? [pid 5344] <... futex resumed>) = ? [pid 5078] <... mkdir resumed>) = 0 [pid 5077] mkdir("./15", 0777 [pid 5344] +++ exited with 0 +++ [pid 5341] +++ exited with 0 +++ [pid 5078] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5077] <... mkdir resumed>) = 0 [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5341, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=16 /* 0.16 s */} --- [pid 5078] ioctl(3, LOOP_CLR_FD [pid 5077] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5076] restart_syscall(<... resuming interrupted clone ...> [pid 5075] <... umount2 resumed>) = 0 [pid 5078] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5077] <... openat resumed>) = 3 [pid 5076] <... restart_syscall resumed>) = 0 [pid 5078] close(3 [pid 5077] ioctl(3, LOOP_CLR_FD [pid 5078] <... close resumed>) = 0 [pid 5076] umount2("./14", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5078] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] openat(AT_FDCWD, "./14", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] close(3 [pid 5076] <... openat resumed>) = 3 [pid 5078] <... clone resumed>, child_tidptr=0x5555571745d0) = 5352 [pid 5077] <... close resumed>) = 0 [pid 5076] fstat(3, [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5077] <... clone resumed>, child_tidptr=0x5555571745d0) = 5353 [pid 5076] umount2("./14/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5076] lstat("./14/binderfs", [pid 5075] umount2("./14/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5352 attached [pid 5076] unlink("./14/binderfs" [pid 5075] lstat("./14/file0", ./strace-static-x86_64: Process 5353 attached [pid 5352] set_robust_list(0x5555571745e0, 24 [pid 5076] <... unlink resumed>) = 0 [pid 5075] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5353] set_robust_list(0x5555571745e0, 24 [pid 5352] <... set_robust_list resumed>) = 0 [pid 5076] umount2("./14/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5353] <... set_robust_list resumed>) = 0 [pid 5352] chdir("./15" [pid 5075] umount2("./14/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5353] chdir("./15" [pid 5352] <... chdir resumed>) = 0 [pid 5345] <... mount resumed>) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5353] <... chdir resumed>) = 0 [pid 5352] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5345] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5075] openat(AT_FDCWD, "./14/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5353] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5352] <... prctl resumed>) = 0 [pid 5345] <... openat resumed>) = 3 [pid 5075] <... openat resumed>) = 4 [ 79.950026][ T5345] REISERFS (device loop0): Using r5 hash to sort names [ 79.972068][ T5345] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5353] <... prctl resumed>) = 0 [pid 5352] setpgid(0, 0 [pid 5345] chdir("./file0" [pid 5075] fstat(4, [pid 5353] setpgid(0, 0 [pid 5352] <... setpgid resumed>) = 0 [pid 5345] <... chdir resumed>) = 0 [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5353] <... setpgid resumed>) = 0 [pid 5352] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5345] ioctl(4, LOOP_CLR_FD [pid 5075] getdents64(4, [pid 5353] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5075] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5353] <... openat resumed>) = 3 [pid 5352] <... openat resumed>) = 3 [pid 5345] <... ioctl resumed>) = 0 [pid 5075] getdents64(4, [pid 5353] write(3, "1000", 4 [pid 5075] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5353] <... write resumed>) = 4 [pid 5352] write(3, "1000", 4 [pid 5345] close(4 [pid 5075] close(4 [pid 5353] close(3 [pid 5352] <... write resumed>) = 4 [pid 5345] <... close resumed>) = 0 [pid 5075] <... close resumed>) = 0 [pid 5353] <... close resumed>) = 0 [pid 5075] rmdir("./14/file0" [pid 5353] symlink("/dev/binderfs", "./binderfs" [pid 5075] <... rmdir resumed>) = 0 [pid 5353] <... symlink resumed>) = 0 [pid 5075] getdents64(3, [pid 5353] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5075] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5353] <... futex resumed>) = 0 [pid 5075] close(3 [pid 5353] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5352] close(3 [pid 5345] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5075] <... close resumed>) = 0 [pid 5353] <... mmap resumed>) = 0x7fdb72913000 [pid 5352] <... close resumed>) = 0 [pid 5345] <... futex resumed>) = 1 [pid 5343] <... futex resumed>) = 0 [pid 5075] rmdir("./14" [pid 5353] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5352] symlink("/dev/binderfs", "./binderfs" [pid 5345] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5343] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5075] <... rmdir resumed>) = 0 [pid 5353] <... mprotect resumed>) = 0 [pid 5352] <... symlink resumed>) = 0 [pid 5345] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5343] <... futex resumed>) = 0 [pid 5075] mkdir("./15", 0777 [pid 5353] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5352] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5345] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5343] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5075] <... mkdir resumed>) = 0 [pid 5352] <... futex resumed>) = 0 [pid 5075] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5353] <... clone resumed>, parent_tid=[5354], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5354 [pid 5345] <... open resumed>) = 4 [pid 5075] <... openat resumed>) = 3 [pid 5353] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5352] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5345] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5075] ioctl(3, LOOP_CLR_FD [pid 5353] <... futex resumed>) = 0 [pid 5352] <... mmap resumed>) = 0x7fdb72913000 [pid 5345] <... futex resumed>) = 1 [pid 5343] <... futex resumed>) = 0 [pid 5075] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5353] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5352] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5345] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5343] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5075] close(3./strace-static-x86_64: Process 5354 attached [pid 5352] <... mprotect resumed>) = 0 [pid 5345] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5343] <... futex resumed>) = 0 [pid 5075] <... close resumed>) = 0 [pid 5354] set_robust_list(0x7fdb729339e0, 24 [pid 5352] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5345] ioctl(4, FS_IOC_GETVERSION [pid 5343] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5354] <... set_robust_list resumed>) = 0 [pid 5345] <... ioctl resumed>, 0x20000080) = 0 [pid 5354] memfd_create("syzkaller", 0 [pid 5352] <... clone resumed>, parent_tid=[5355], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5355 [pid 5345] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5075] <... clone resumed>, child_tidptr=0x5555571745d0) = 5356 [pid 5354] <... memfd_create resumed>) = 3 [pid 5352] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5345] <... futex resumed>) = 1 [pid 5343] <... futex resumed>) = 0 [pid 5354] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5352] <... futex resumed>) = 0 [pid 5345] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5343] exit_group(0./strace-static-x86_64: Process 5356 attached ./strace-static-x86_64: Process 5355 attached [pid 5354] <... mmap resumed>) = 0x7fdb6a513000 [pid 5352] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5345] <... futex resumed>) = ? [pid 5343] <... exit_group resumed>) = ? [pid 5356] set_robust_list(0x5555571745e0, 24 [pid 5355] set_robust_list(0x7fdb729339e0, 24 [pid 5345] +++ exited with 0 +++ [pid 5343] +++ exited with 0 +++ [pid 5356] <... set_robust_list resumed>) = 0 [pid 5355] <... set_robust_list resumed>) = 0 [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5343, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=22 /* 0.22 s */} --- [pid 5356] chdir("./15" [pid 5355] memfd_create("syzkaller", 0 [pid 5356] <... chdir resumed>) = 0 [pid 5355] <... memfd_create resumed>) = 3 [pid 5356] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5355] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5076] <... umount2 resumed>) = 0 [pid 5074] umount2("./14", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5356] <... prctl resumed>) = 0 [pid 5355] <... mmap resumed>) = 0x7fdb6a513000 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5356] setpgid(0, 0 [pid 5074] openat(AT_FDCWD, "./14", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5356] <... setpgid resumed>) = 0 [pid 5074] <... openat resumed>) = 3 [pid 5356] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5074] fstat(3, [pid 5356] <... openat resumed>) = 3 [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5356] write(3, "1000", 4 [pid 5074] getdents64(3, [pid 5356] <... write resumed>) = 4 [pid 5074] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5356] close(3 [pid 5074] umount2("./14/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5356] <... close resumed>) = 0 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5356] symlink("/dev/binderfs", "./binderfs" [pid 5074] lstat("./14/binderfs", [pid 5356] <... symlink resumed>) = 0 [pid 5074] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5356] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5074] unlink("./14/binderfs" [pid 5356] <... futex resumed>) = 0 [pid 5074] <... unlink resumed>) = 0 [pid 5356] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5074] umount2("./14/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5356] <... mmap resumed>) = 0x7fdb72913000 [pid 5356] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5076] umount2("./14/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5356] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5356] <... clone resumed>, parent_tid=[5357], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5357 [pid 5356] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5076] lstat("./14/file0", [pid 5356] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5076] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] umount2("./14/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5357 attached [pid 5357] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5357] memfd_create("syzkaller", 0 [pid 5076] openat(AT_FDCWD, "./14/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5357] <... memfd_create resumed>) = 3 [pid 5076] <... openat resumed>) = 4 [pid 5357] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5076] fstat(4, [pid 5357] <... mmap resumed>) = 0x7fdb6a513000 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5354] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5079] <... umount2 resumed>) = 0 [pid 5076] getdents64(4, [pid 5079] umount2("./13/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] getdents64(4, [pid 5079] lstat("./13/file0", [pid 5076] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5079] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] close(4 [pid 5079] umount2("./13/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5076] <... close resumed>) = 0 [pid 5079] openat(AT_FDCWD, "./13/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] rmdir("./14/file0" [pid 5079] <... openat resumed>) = 4 [pid 5079] fstat(4, [pid 5076] <... rmdir resumed>) = 0 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] getdents64(3, [pid 5079] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5076] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5079] getdents64(4, [pid 5076] close(3 [pid 5079] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5076] <... close resumed>) = 0 [pid 5079] close(4 [pid 5076] rmdir("./14" [pid 5079] <... close resumed>) = 0 [pid 5076] <... rmdir resumed>) = 0 [pid 5079] rmdir("./13/file0" [pid 5076] mkdir("./15", 0777) = 0 [pid 5076] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5079] <... rmdir resumed>) = 0 [pid 5076] ioctl(3, LOOP_CLR_FD [pid 5079] getdents64(3, [pid 5076] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5079] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5076] close(3 [pid 5079] close(3 [pid 5076] <... close resumed>) = 0 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] <... close resumed>) = 0 [pid 5079] rmdir("./13" [pid 5076] <... clone resumed>, child_tidptr=0x5555571745d0) = 5358 [pid 5079] <... rmdir resumed>) = 0 [pid 5079] mkdir("./14", 0777) = 0 [pid 5079] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5079] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5079] close(3) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5359 ./strace-static-x86_64: Process 5358 attached [pid 5358] set_robust_list(0x5555571745e0, 24) = 0 [pid 5358] chdir("./15") = 0 [pid 5358] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 ./strace-static-x86_64: Process 5359 attached [pid 5358] setpgid(0, 0 [pid 5359] set_robust_list(0x5555571745e0, 24 [pid 5358] <... setpgid resumed>) = 0 [pid 5357] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5359] <... set_robust_list resumed>) = 0 [pid 5358] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5359] chdir("./14" [pid 5358] <... openat resumed>) = 3 [pid 5359] <... chdir resumed>) = 0 [pid 5359] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5358] write(3, "1000", 4 [pid 5359] <... prctl resumed>) = 0 [pid 5358] <... write resumed>) = 4 [pid 5359] setpgid(0, 0 [pid 5358] close(3 [pid 5359] <... setpgid resumed>) = 0 [pid 5358] <... close resumed>) = 0 [pid 5359] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5358] symlink("/dev/binderfs", "./binderfs" [pid 5359] <... openat resumed>) = 3 [pid 5358] <... symlink resumed>) = 0 [pid 5355] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5359] write(3, "1000", 4 [pid 5358] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5359] <... write resumed>) = 4 [pid 5358] <... futex resumed>) = 0 [pid 5359] close(3 [pid 5358] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5359] <... close resumed>) = 0 [pid 5358] <... mmap resumed>) = 0x7fdb72913000 [pid 5359] symlink("/dev/binderfs", "./binderfs" [pid 5358] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5359] <... symlink resumed>) = 0 [pid 5358] <... mprotect resumed>) = 0 [pid 5359] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5358] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5359] <... futex resumed>) = 0 [pid 5359] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5358] <... clone resumed>, parent_tid=[5360], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5360 [pid 5359] <... mmap resumed>) = 0x7fdb72913000 [pid 5358] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5359] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5358] <... futex resumed>) = 0 [pid 5359] <... mprotect resumed>) = 0 [pid 5358] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5359] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5361], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5361 [pid 5359] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 5360 attached ) = 0 [pid 5360] set_robust_list(0x7fdb729339e0, 24 [pid 5359] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5360] <... set_robust_list resumed>) = 0 [pid 5360] memfd_create("syzkaller", 0) = 3 [pid 5360] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0./strace-static-x86_64: Process 5361 attached ) = 0x7fdb6a513000 [pid 5361] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5361] memfd_create("syzkaller", 0) = 3 [pid 5361] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [pid 5354] <... write resumed>) = 4194304 [pid 5354] munmap(0x7fdb6a513000, 4194304 [pid 5074] <... umount2 resumed>) = 0 [pid 5354] <... munmap resumed>) = 0 [pid 5074] umount2("./14/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5354] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5354] ioctl(4, LOOP_SET_FD, 3 [pid 5074] lstat("./14/file0", [pid 5354] <... ioctl resumed>) = 0 [pid 5074] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5354] close(3 [pid 5074] umount2("./14/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5354] <... close resumed>) = 0 [pid 5355] <... write resumed>) = 4194304 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5355] munmap(0x7fdb6a513000, 4194304 [pid 5354] mkdir("./file0", 0777 [pid 5074] openat(AT_FDCWD, "./14/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5354] <... mkdir resumed>) = 0 [pid 5355] <... munmap resumed>) = 0 [pid 5354] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5074] <... openat resumed>) = 4 [pid 5355] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5360] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5355] <... openat resumed>) = 4 [pid 5074] fstat(4, [pid 5355] ioctl(4, LOOP_SET_FD, 3 [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5357] <... write resumed>) = 4194304 [pid 5357] munmap(0x7fdb6a513000, 4194304) = 0 [pid 5357] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5357] ioctl(4, LOOP_SET_FD, 3 [pid 5074] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5074] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5074] close(4) = 0 [pid 5074] rmdir("./14/file0" [pid 5357] <... ioctl resumed>) = 0 [pid 5357] close(3) = 0 [pid 5357] mkdir("./file0", 0777) = 0 [pid 5357] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5355] <... ioctl resumed>) = 0 [pid 5355] close(3) = 0 [pid 5355] mkdir("./file0", 0777) = 0 [pid 5355] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5074] <... rmdir resumed>) = 0 [pid 5074] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5361] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [ 80.374235][ T5354] loop3: detected capacity change from 0 to 8192 [ 80.391579][ T5355] loop4: detected capacity change from 0 to 8192 [ 80.401262][ T5357] loop1: detected capacity change from 0 to 8192 [ 80.409252][ T5354] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5074] close(3) = 0 [ 80.424430][ T5354] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 80.444697][ T5355] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 80.458355][ T5357] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5074] rmdir("./14") = 0 [pid 5074] mkdir("./15", 0777) = 0 [pid 5074] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5074] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5074] close(3) = 0 [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5365 [pid 5360] <... write resumed>) = 4194304 ./strace-static-x86_64: Process 5365 attached [pid 5365] set_robust_list(0x5555571745e0, 24 [pid 5360] munmap(0x7fdb6a513000, 4194304) = 0 [pid 5360] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5360] ioctl(4, LOOP_SET_FD, 3 [pid 5365] <... set_robust_list resumed>) = 0 [pid 5365] chdir("./15") = 0 [pid 5365] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5365] setpgid(0, 0) = 0 [ 80.459077][ T5354] REISERFS (device loop3): using ordered data mode [ 80.489915][ T5357] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 80.501771][ T5355] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 80.503809][ T5354] reiserfs: using flush barriers [pid 5365] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5365] write(3, "1000", 4) = 4 [pid 5365] close(3) = 0 [pid 5365] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5365] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5365] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5365] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5365] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5366], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5366 [pid 5365] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5360] <... ioctl resumed>) = 0 [pid 5365] <... futex resumed>) = 0 [pid 5365] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5366 attached [pid 5366] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5366] memfd_create("syzkaller", 0 [pid 5360] close(3) = 0 [pid 5360] mkdir("./file0", 0777) = 0 [pid 5360] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5366] <... memfd_create resumed>) = 3 [pid 5366] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [ 80.519276][ T5360] loop2: detected capacity change from 0 to 8192 [ 80.527056][ T5354] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 80.544487][ T5354] REISERFS (device loop3): checking transaction log (loop3) [ 80.563574][ T5357] REISERFS (device loop1): using ordered data mode [ 80.570766][ T5357] reiserfs: using flush barriers [ 80.573531][ T5355] REISERFS (device loop4): using ordered data mode [ 80.577122][ T5357] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 80.586093][ T5355] reiserfs: using flush barriers [ 80.604221][ T5360] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5361] <... write resumed>) = 4194304 [pid 5361] munmap(0x7fdb6a513000, 4194304) = 0 [pid 5361] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [ 80.619882][ T5360] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 80.631069][ T5360] REISERFS (device loop2): using ordered data mode [ 80.639440][ T5361] loop5: detected capacity change from 0 to 8192 [ 80.639596][ T5360] reiserfs: using flush barriers [ 80.656325][ T5360] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5361] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5361] close(3) = 0 [pid 5361] mkdir("./file0", 0777) = 0 [ 80.665254][ T5357] REISERFS (device loop1): checking transaction log (loop1) [ 80.673048][ T5360] REISERFS (device loop2): checking transaction log (loop2) [pid 5361] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC, "" [ 80.727473][ T5355] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 80.760694][ T5361] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 80.776634][ T5360] REISERFS (device loop2): Using r5 hash to sort names [ 80.788903][ T5360] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 80.814055][ T5355] REISERFS (device loop4): checking transaction log (loop4) [pid 5366] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5360] <... mount resumed>) = 0 [pid 5360] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5360] chdir("./file0") = 0 [pid 5360] ioctl(4, LOOP_CLR_FD [pid 5366] <... write resumed>) = 4194304 [pid 5366] munmap(0x7fdb6a513000, 4194304) = 0 [pid 5360] <... ioctl resumed>) = 0 [pid 5360] close(4 [pid 5366] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5366] ioctl(4, LOOP_SET_FD, 3 [pid 5360] <... close resumed>) = 0 [pid 5366] <... ioctl resumed>) = 0 [pid 5366] close(3) = 0 [pid 5366] mkdir("./file0", 0777) = 0 [ 80.841465][ T5361] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 80.868281][ T5366] loop0: detected capacity change from 0 to 8192 [pid 5366] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5360] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5360] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5358] <... futex resumed>) = 0 [pid 5358] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5360] <... futex resumed>) = 0 [pid 5358] <... futex resumed>) = 1 [pid 5360] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5358] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5360] <... open resumed>) = 4 [pid 5360] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5358] <... futex resumed>) = 0 [pid 5360] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5358] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5360] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5358] <... futex resumed>) = 0 [pid 5360] ioctl(4, FS_IOC_GETVERSION [pid 5358] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5360] <... ioctl resumed>, 0x20000080) = 0 [pid 5360] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5358] <... futex resumed>) = 0 [pid 5360] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5358] exit_group(0 [pid 5360] <... futex resumed>) = ? [pid 5358] <... exit_group resumed>) = ? [pid 5360] +++ exited with 0 +++ [pid 5358] +++ exited with 0 +++ [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5358, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=19 /* 0.19 s */} --- [pid 5076] umount2("./15", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5076] openat(AT_FDCWD, "./15", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5076] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5076] umount2("./15/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5076] lstat("./15/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] unlink("./15/binderfs") = 0 [ 80.887563][ T5361] REISERFS (device loop5): using ordered data mode [ 80.887708][ T5366] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 80.895163][ T5361] reiserfs: using flush barriers [ 80.957738][ T5354] REISERFS (device loop3): Using r5 hash to sort names [ 80.967675][ T5366] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 80.976522][ T5354] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 80.988775][ T5361] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5076] umount2("./15/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5354] <... mount resumed>) = 0 [pid 5354] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5354] chdir("./file0") = 0 [pid 5354] ioctl(4, LOOP_CLR_FD) = 0 [pid 5354] close(4) = 0 [pid 5354] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5353] <... futex resumed>) = 0 [pid 5354] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5353] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5354] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5353] <... futex resumed>) = 0 [pid 5354] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5353] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5354] <... open resumed>) = 4 [pid 5354] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5353] <... futex resumed>) = 0 [pid 5354] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5353] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5354] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [ 81.000101][ T5366] REISERFS (device loop0): using ordered data mode [ 81.023211][ T5357] REISERFS (device loop1): Using r5 hash to sort names [pid 5353] <... futex resumed>) = 0 [pid 5354] ioctl(4, FS_IOC_GETVERSION [pid 5353] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5354] <... ioctl resumed>, 0x20000080) = 0 [pid 5354] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5353] <... futex resumed>) = 0 [pid 5354] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5353] exit_group(0 [pid 5354] <... futex resumed>) = ? [pid 5353] <... exit_group resumed>) = ? [pid 5354] +++ exited with 0 +++ [pid 5353] +++ exited with 0 +++ [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5353, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=17 /* 0.17 s */} --- [pid 5357] <... mount resumed>) = 0 [pid 5357] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5357] chdir("./file0") = 0 [pid 5357] ioctl(4, LOOP_CLR_FD) = 0 [ 81.072929][ T5355] REISERFS (device loop4): Using r5 hash to sort names [ 81.074552][ T5361] REISERFS (device loop5): checking transaction log (loop5) [ 81.082504][ T5366] reiserfs: using flush barriers [ 81.089759][ T5357] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 81.104219][ T5355] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [pid 5357] close(4) = 0 [pid 5357] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5356] <... futex resumed>) = 0 [pid 5356] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5356] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5357] <... futex resumed>) = 1 [pid 5357] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 5357] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5356] <... futex resumed>) = 0 [pid 5356] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5356] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5357] <... futex resumed>) = 1 [pid 5077] umount2("./15", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] openat(AT_FDCWD, "./15", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5077] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5077] umount2("./15/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] lstat("./15/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5357] ioctl(4, FS_IOC_GETVERSION [pid 5077] unlink("./15/binderfs" [pid 5357] <... ioctl resumed>, 0x20000080) = 0 [pid 5355] <... mount resumed>) = 0 [pid 5077] <... unlink resumed>) = 0 [pid 5076] <... umount2 resumed>) = 0 [pid 5357] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5355] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5077] umount2("./15/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] umount2("./15/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5357] <... futex resumed>) = 1 [pid 5356] <... futex resumed>) = 0 [pid 5355] <... openat resumed>) = 3 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5357] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5356] exit_group(0 [pid 5355] chdir("./file0" [pid 5076] lstat("./15/file0", [pid 5357] <... futex resumed>) = ? [pid 5356] <... exit_group resumed>) = ? [pid 5355] <... chdir resumed>) = 0 [pid 5076] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5357] +++ exited with 0 +++ [pid 5356] +++ exited with 0 +++ [pid 5355] ioctl(4, LOOP_CLR_FD [pid 5076] umount2("./15/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5355] <... ioctl resumed>) = 0 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5356, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 5355] close(4 [pid 5076] openat(AT_FDCWD, "./15/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5355] <... close resumed>) = 0 [pid 5076] <... openat resumed>) = 4 [pid 5355] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5076] fstat(4, [pid 5355] <... futex resumed>) = 1 [pid 5352] <... futex resumed>) = 0 [pid 5355] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5355] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5352] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5355] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5352] <... futex resumed>) = 0 [pid 5076] getdents64(4, [ 81.113833][ T5366] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 81.152473][ T5366] REISERFS (device loop0): checking transaction log (loop0) [pid 5075] umount2("./15", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5355] <... open resumed>) = 4 [pid 5352] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5076] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5355] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5352] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5076] getdents64(4, [pid 5075] openat(AT_FDCWD, "./15", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5355] <... futex resumed>) = 0 [pid 5352] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5076] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5075] <... openat resumed>) = 3 [pid 5355] ioctl(4, FS_IOC_GETVERSION [pid 5352] <... futex resumed>) = 0 [pid 5076] close(4 [pid 5075] fstat(3, [pid 5355] <... ioctl resumed>, 0x20000080) = 0 [pid 5352] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5076] <... close resumed>) = 0 [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5355] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5352] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5076] rmdir("./15/file0" [pid 5075] getdents64(3, [pid 5355] <... futex resumed>) = 0 [pid 5352] exit_group(0 [pid 5075] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5076] <... rmdir resumed>) = 0 [pid 5352] <... exit_group resumed>) = ? [pid 5076] getdents64(3, [pid 5075] umount2("./15/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5355] +++ exited with 0 +++ [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] lstat("./15/binderfs", [pid 5352] +++ exited with 0 +++ [pid 5076] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5078] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5352, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=17 /* 0.17 s */} --- [pid 5076] close(3 [pid 5075] unlink("./15/binderfs" [pid 5078] restart_syscall(<... resuming interrupted clone ...> [pid 5076] <... close resumed>) = 0 [pid 5075] <... unlink resumed>) = 0 [pid 5078] <... restart_syscall resumed>) = 0 [pid 5076] rmdir("./15" [pid 5075] umount2("./15/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... rmdir resumed>) = 0 [pid 5078] umount2("./15", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] mkdir("./16", 0777 [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... mkdir resumed>) = 0 [pid 5078] openat(AT_FDCWD, "./15", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5078] <... openat resumed>) = 3 [pid 5078] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] <... openat resumed>) = 3 [pid 5078] getdents64(3, [pid 5076] ioctl(3, LOOP_CLR_FD [pid 5078] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5076] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5078] umount2("./15/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] close(3 [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5078] lstat("./15/binderfs", [pid 5076] <... close resumed>) = 0 [pid 5078] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5078] unlink("./15/binderfs") = 0 [pid 5078] umount2("./15/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... clone resumed>, child_tidptr=0x5555571745d0) = 5370 ./strace-static-x86_64: Process 5370 attached [pid 5370] set_robust_list(0x5555571745e0, 24) = 0 [pid 5370] chdir("./16") = 0 [pid 5370] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5370] setpgid(0, 0) = 0 [pid 5370] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5370] write(3, "1000", 4) = 4 [pid 5370] close(3) = 0 [pid 5370] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5370] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5370] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5370] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5370] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5371], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5371 [pid 5370] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5370] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5371 attached [pid 5371] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5371] memfd_create("syzkaller", 0) = 3 [pid 5371] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [pid 5077] <... umount2 resumed>) = 0 [pid 5077] umount2("./15/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] lstat("./15/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] umount2("./15/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] openat(AT_FDCWD, "./15/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5077] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5077] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5077] close(4) = 0 [pid 5077] rmdir("./15/file0") = 0 [pid 5077] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5077] close(3) = 0 [pid 5077] rmdir("./15") = 0 [pid 5077] mkdir("./16", 0777) = 0 [pid 5077] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5077] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5077] close(3) = 0 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5372 [ 81.380660][ T5366] REISERFS (device loop0): Using r5 hash to sort names [ 81.402970][ T5366] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. ./strace-static-x86_64: Process 5372 attached [pid 5371] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5366] <... mount resumed>) = 0 [pid 5372] set_robust_list(0x5555571745e0, 24 [pid 5366] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5372] <... set_robust_list resumed>) = 0 [pid 5366] <... openat resumed>) = 3 [pid 5361] <... mount resumed>) = 0 [pid 5372] chdir("./16" [pid 5366] chdir("./file0" [pid 5361] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5372] <... chdir resumed>) = 0 [pid 5366] <... chdir resumed>) = 0 [pid 5361] <... openat resumed>) = 3 [pid 5372] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5366] ioctl(4, LOOP_CLR_FD [pid 5361] chdir("./file0" [pid 5075] <... umount2 resumed>) = 0 [pid 5372] <... prctl resumed>) = 0 [pid 5366] <... ioctl resumed>) = 0 [pid 5361] <... chdir resumed>) = 0 [pid 5075] umount2("./15/file0", MNT_DETACH|UMOUNT_NOFOLLOW [ 81.426344][ T5361] REISERFS (device loop5): Using r5 hash to sort names [ 81.445417][ T5361] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 5372] setpgid(0, 0 [pid 5366] close(4 [pid 5361] ioctl(4, LOOP_CLR_FD [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5372] <... setpgid resumed>) = 0 [pid 5366] <... close resumed>) = 0 [pid 5361] <... ioctl resumed>) = 0 [pid 5075] lstat("./15/file0", [pid 5372] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5366] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5361] close(4 [pid 5372] <... openat resumed>) = 3 [pid 5366] <... futex resumed>) = 1 [pid 5365] <... futex resumed>) = 0 [pid 5361] <... close resumed>) = 0 [pid 5075] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5372] write(3, "1000", 4 [pid 5366] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5365] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5361] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5075] umount2("./15/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5372] <... write resumed>) = 4 [pid 5366] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5365] <... futex resumed>) = 0 [pid 5361] <... futex resumed>) = 1 [pid 5359] <... futex resumed>) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5372] close(3 [pid 5366] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5365] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5361] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5359] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5075] openat(AT_FDCWD, "./15/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5372] <... close resumed>) = 0 [pid 5366] <... open resumed>) = 4 [pid 5361] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5359] <... futex resumed>) = 0 [pid 5372] symlink("/dev/binderfs", "./binderfs" [pid 5366] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5361] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5359] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5075] <... openat resumed>) = 4 [pid 5372] <... symlink resumed>) = 0 [pid 5366] <... futex resumed>) = 1 [pid 5361] <... open resumed>) = 4 [pid 5365] <... futex resumed>) = 0 [pid 5075] fstat(4, [pid 5366] ioctl(4, FS_IOC_GETVERSION [pid 5365] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5366] <... ioctl resumed>, 0x20000080) = 0 [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5372] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5366] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5365] <... futex resumed>) = 0 [pid 5361] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5075] getdents64(4, [pid 5372] <... futex resumed>) = 0 [pid 5371] <... write resumed>) = 4194304 [pid 5366] <... futex resumed>) = 0 [pid 5365] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5361] <... futex resumed>) = 1 [pid 5359] <... futex resumed>) = 0 [pid 5075] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5372] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5371] munmap(0x7fdb6a513000, 4194304 [pid 5366] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5365] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5361] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5359] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5075] getdents64(4, [pid 5372] <... mmap resumed>) = 0x7fdb72913000 [pid 5371] <... munmap resumed>) = 0 [pid 5365] exit_group(0 [pid 5361] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5359] <... futex resumed>) = 0 [pid 5075] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5372] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5371] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5366] <... futex resumed>) = ? [pid 5365] <... exit_group resumed>) = ? [pid 5361] ioctl(4, FS_IOC_GETVERSION [pid 5359] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5075] close(4 [pid 5372] <... mprotect resumed>) = 0 [pid 5371] <... openat resumed>) = 4 [pid 5366] +++ exited with 0 +++ [pid 5365] +++ exited with 0 +++ [pid 5361] <... ioctl resumed>, 0x20000080) = 0 [pid 5075] <... close resumed>) = 0 [pid 5372] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5371] ioctl(4, LOOP_SET_FD, 3 [pid 5361] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5075] rmdir("./15/file0" [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5365, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} --- [pid 5361] <... futex resumed>) = 1 [pid 5359] <... futex resumed>) = 0 [pid 5075] <... rmdir resumed>) = 0 [pid 5372] <... clone resumed>, parent_tid=[5373], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5373 [pid 5361] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5359] exit_group(0 [pid 5075] getdents64(3, [pid 5372] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5361] <... futex resumed>) = ? [pid 5359] <... exit_group resumed>) = ? [pid 5075] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5074] umount2("./15", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5373 attached [pid 5372] <... futex resumed>) = 0 [pid 5371] <... ioctl resumed>) = 0 [pid 5361] +++ exited with 0 +++ [pid 5359] +++ exited with 0 +++ [pid 5078] <... umount2 resumed>) = 0 [pid 5075] close(3 [pid 5373] set_robust_list(0x7fdb729339e0, 24 [pid 5372] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5371] close(3 [pid 5078] umount2("./15/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... close resumed>) = 0 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5373] <... set_robust_list resumed>) = 0 [pid 5371] <... close resumed>) = 0 [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5359, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=24 /* 0.24 s */} --- [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] rmdir("./15" [pid 5074] openat(AT_FDCWD, "./15", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5373] memfd_create("syzkaller", 0 [pid 5371] mkdir("./file0", 0777 [pid 5078] lstat("./15/file0", [pid 5075] <... rmdir resumed>) = 0 [pid 5074] <... openat resumed>) = 3 [pid 5373] <... memfd_create resumed>) = 3 [pid 5371] <... mkdir resumed>) = 0 [pid 5078] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] mkdir("./16", 0777 [pid 5074] fstat(3, [ 81.535744][ T5371] loop2: detected capacity change from 0 to 8192 [pid 5373] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5371] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5079] umount2("./14", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5078] umount2("./15/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5373] <... mmap resumed>) = 0x7fdb6a513000 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... mkdir resumed>) = 0 [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./14", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5074] getdents64(3, [pid 5079] <... openat resumed>) = 3 [pid 5075] <... openat resumed>) = 3 [pid 5074] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5079] fstat(3, [pid 5075] ioctl(3, LOOP_CLR_FD [pid 5074] umount2("./15/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] getdents64(3, [pid 5075] close(3 [pid 5074] lstat("./15/binderfs", [pid 5079] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5078] openat(AT_FDCWD, "./15/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] <... close resumed>) = 0 [pid 5074] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] umount2("./14/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5074] unlink("./15/binderfs" [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] <... unlink resumed>) = 0 [pid 5079] lstat("./14/binderfs", [pid 5075] <... clone resumed>, child_tidptr=0x5555571745d0) = 5375 [pid 5074] umount2("./15/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] unlink("./14/binderfs" [pid 5078] <... openat resumed>) = 4 [pid 5079] <... unlink resumed>) = 0 [pid 5079] umount2("./14/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5375 attached [pid 5375] set_robust_list(0x5555571745e0, 24 [pid 5078] fstat(4, [pid 5375] <... set_robust_list resumed>) = 0 [pid 5375] chdir("./16") = 0 [pid 5078] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5078] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5078] close(4 [pid 5375] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5078] <... close resumed>) = 0 [pid 5078] rmdir("./15/file0" [pid 5375] <... prctl resumed>) = 0 [pid 5375] setpgid(0, 0 [pid 5078] <... rmdir resumed>) = 0 [pid 5375] <... setpgid resumed>) = 0 [pid 5078] getdents64(3, [pid 5375] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5078] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5375] <... openat resumed>) = 3 [pid 5078] close(3 [pid 5375] write(3, "1000", 4 [pid 5078] <... close resumed>) = 0 [pid 5375] <... write resumed>) = 4 [pid 5078] rmdir("./15" [pid 5375] close(3) = 0 [pid 5375] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5078] <... rmdir resumed>) = 0 [pid 5375] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] mkdir("./16", 0777 [pid 5375] <... futex resumed>) = 0 [pid 5375] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5078] <... mkdir resumed>) = 0 [pid 5078] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5375] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5078] <... openat resumed>) = 3 [pid 5375] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5078] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5375] <... clone resumed>, parent_tid=[5376], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5376 [pid 5078] close(3 [pid 5375] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] <... close resumed>) = 0 [pid 5375] <... futex resumed>) = 0 [pid 5078] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5375] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5078] <... clone resumed>, child_tidptr=0x5555571745d0) = 5377 ./strace-static-x86_64: Process 5377 attached [pid 5377] set_robust_list(0x5555571745e0, 24) = 0 [pid 5377] chdir("./16"./strace-static-x86_64: Process 5376 attached ) = 0 [ 81.581399][ T5371] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5377] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5376] set_robust_list(0x7fdb729339e0, 24 [pid 5377] <... prctl resumed>) = 0 [pid 5377] setpgid(0, 0) = 0 [pid 5377] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5376] <... set_robust_list resumed>) = 0 [pid 5377] <... openat resumed>) = 3 [pid 5377] write(3, "1000", 4 [pid 5376] memfd_create("syzkaller", 0 [pid 5377] <... write resumed>) = 4 [pid 5377] close(3) = 0 [pid 5376] <... memfd_create resumed>) = 3 [pid 5377] symlink("/dev/binderfs", "./binderfs" [pid 5376] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5377] <... symlink resumed>) = 0 [pid 5376] <... mmap resumed>) = 0x7fdb6a513000 [pid 5377] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5377] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5377] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5377] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5378], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5378 [pid 5377] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5079] <... umount2 resumed>) = 0 [pid 5079] umount2("./14/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5378 attached [pid 5079] lstat("./14/file0", [pid 5377] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5378] set_robust_list(0x7fdb729339e0, 24 [pid 5079] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5378] <... set_robust_list resumed>) = 0 [pid 5079] umount2("./14/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./14/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5378] memfd_create("syzkaller", 0 [pid 5079] <... openat resumed>) = 4 [pid 5079] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5378] <... memfd_create resumed>) = 3 [pid 5079] getdents64(4, [pid 5378] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5079] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5378] <... mmap resumed>) = 0x7fdb6a513000 [pid 5079] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5079] close(4) = 0 [pid 5079] rmdir("./14/file0") = 0 [pid 5079] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5079] close(3) = 0 [pid 5079] rmdir("./14") = 0 [ 81.683451][ T5371] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 81.692742][ T5371] REISERFS (device loop2): using ordered data mode [ 81.699861][ T5371] reiserfs: using flush barriers [ 81.708779][ T5371] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5079] mkdir("./15", 0777) = 0 [pid 5079] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5079] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5079] close(3) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5379 attached , child_tidptr=0x5555571745d0) = 5379 [pid 5379] set_robust_list(0x5555571745e0, 24) = 0 [pid 5379] chdir("./15") = 0 [ 81.727457][ T5371] REISERFS (device loop2): checking transaction log (loop2) [pid 5379] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5379] setpgid(0, 0) = 0 [pid 5379] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5373] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5379] write(3, "1000", 4) = 4 [pid 5379] close(3) = 0 [pid 5379] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5379] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5379] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5379] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5379] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5380], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5380 [pid 5379] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5379] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5380 attached [pid 5378] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5380] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5380] memfd_create("syzkaller", 0 [pid 5376] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5380] <... memfd_create resumed>) = 3 [pid 5380] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [pid 5074] <... umount2 resumed>) = 0 [pid 5380] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5074] umount2("./15/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] lstat("./15/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] umount2("./15/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] openat(AT_FDCWD, "./15/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5074] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5074] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5074] close(4) = 0 [pid 5074] rmdir("./15/file0") = 0 [pid 5074] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5074] close(3) = 0 [pid 5378] <... write resumed>) = 4194304 [pid 5373] <... write resumed>) = 4194304 [pid 5373] munmap(0x7fdb6a513000, 4194304 [pid 5074] rmdir("./15" [pid 5373] <... munmap resumed>) = 0 [pid 5074] <... rmdir resumed>) = 0 [pid 5373] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 5074] mkdir("./16", 0777 [pid 5373] ioctl(4, LOOP_SET_FD, 3 [pid 5074] <... mkdir resumed>) = 0 [pid 5074] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5074] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5074] close(3) = 0 [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5376] <... write resumed>) = 4194304 [pid 5373] <... ioctl resumed>) = 0 [pid 5371] <... mount resumed>) = 0 [pid 5376] munmap(0x7fdb6a513000, 4194304 [pid 5373] close(3 [pid 5371] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5074] <... clone resumed>, child_tidptr=0x5555571745d0) = 5381 ./strace-static-x86_64: Process 5381 attached [pid 5376] <... munmap resumed>) = 0 [pid 5373] <... close resumed>) = 0 [pid 5371] <... openat resumed>) = 3 [pid 5381] set_robust_list(0x5555571745e0, 24 [pid 5376] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5373] mkdir("./file0", 0777 [pid 5371] chdir("./file0" [pid 5381] <... set_robust_list resumed>) = 0 [pid 5376] <... openat resumed>) = 4 [pid 5373] <... mkdir resumed>) = 0 [pid 5371] <... chdir resumed>) = 0 [pid 5381] chdir("./16" [pid 5376] ioctl(4, LOOP_SET_FD, 3 [pid 5373] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5371] ioctl(4, LOOP_CLR_FD [ 81.921249][ T5371] REISERFS (device loop2): Using r5 hash to sort names [ 81.943787][ T5371] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 81.962588][ T5373] loop3: detected capacity change from 0 to 8192 [pid 5381] <... chdir resumed>) = 0 [pid 5378] munmap(0x7fdb6a513000, 4194304) = 0 [pid 5378] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5381] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5380] <... write resumed>) = 4194304 [pid 5376] <... ioctl resumed>) = 0 [pid 5371] <... ioctl resumed>) = 0 [pid 5381] <... prctl resumed>) = 0 [pid 5378] <... openat resumed>) = 4 [pid 5381] setpgid(0, 0 [pid 5378] ioctl(4, LOOP_SET_FD, 3 [pid 5381] <... setpgid resumed>) = 0 [pid 5376] close(3 [pid 5371] close(4 [pid 5381] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5381] write(3, "1000", 4) = 4 [pid 5381] close(3) = 0 [pid 5381] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5381] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5381] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5376] <... close resumed>) = 0 [pid 5381] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5371] <... close resumed>) = 0 [pid 5381] <... mprotect resumed>) = 0 [pid 5381] clone(child_stack=0x7fdb729333f0, 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 5383 attached [pid 5376] mkdir("./file0", 0777 [pid 5371] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5381] <... clone resumed>, parent_tid=[5383], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5383 [pid 5383] set_robust_list(0x7fdb729339e0, 24 [pid 5381] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5376] <... mkdir resumed>) = 0 [pid 5371] <... futex resumed>) = 1 [pid 5370] <... futex resumed>) = 0 [ 81.997129][ T5376] loop1: detected capacity change from 0 to 8192 [ 82.005335][ T5373] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 82.016038][ T5378] loop4: detected capacity change from 0 to 8192 [ 82.019079][ T5373] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 82.035338][ T5373] REISERFS (device loop3): using ordered data mode [ 82.041899][ T5373] reiserfs: using flush barriers [pid 5383] <... set_robust_list resumed>) = 0 [pid 5381] <... futex resumed>) = 0 [pid 5380] munmap(0x7fdb6a513000, 4194304 [pid 5370] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5381] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5380] <... munmap resumed>) = 0 [pid 5370] <... futex resumed>) = 0 [pid 5380] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5370] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5380] <... openat resumed>) = 4 [pid 5380] ioctl(4, LOOP_SET_FD, 3 [pid 5383] memfd_create("syzkaller", 0 [pid 5376] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5371] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5383] <... memfd_create resumed>) = 3 [pid 5371] <... open resumed>) = 4 [pid 5383] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5371] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5383] <... mmap resumed>) = 0x7fdb6a513000 [pid 5378] <... ioctl resumed>) = 0 [pid 5371] <... futex resumed>) = 1 [pid 5370] <... futex resumed>) = 0 [pid 5378] close(3 [pid 5370] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5378] <... close resumed>) = 0 [pid 5370] <... futex resumed>) = 0 [pid 5378] mkdir("./file0", 0777 [pid 5370] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5378] <... mkdir resumed>) = 0 [pid 5378] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5380] <... ioctl resumed>) = 0 [pid 5380] close(3) = 0 [pid 5371] ioctl(4, FS_IOC_GETVERSION, 0x20000080) = 0 [ 82.049827][ T5373] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 82.056664][ T5380] loop5: detected capacity change from 0 to 8192 [ 82.073956][ T5373] REISERFS (device loop3): checking transaction log (loop3) [pid 5371] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5380] mkdir("./file0", 0777) = 0 [pid 5380] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5371] <... futex resumed>) = 1 [pid 5370] <... futex resumed>) = 0 [pid 5370] exit_group(0) = ? [pid 5371] +++ exited with 0 +++ [pid 5370] +++ exited with 0 +++ [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5370, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=17 /* 0.17 s */} --- [ 82.114363][ T5376] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 82.129091][ T5378] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 82.139054][ T5376] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 82.152809][ T5376] REISERFS (device loop1): using ordered data mode [ 82.159744][ T5376] reiserfs: using flush barriers [pid 5076] umount2("./16", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5076] openat(AT_FDCWD, "./16", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5076] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5076] umount2("./16/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5076] lstat("./16/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] unlink("./16/binderfs") = 0 [ 82.166095][ T5380] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 82.166802][ T5376] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 82.197124][ T5376] REISERFS (device loop1): checking transaction log (loop1) [pid 5076] umount2("./16/file0", MNT_DETACH|UMOUNT_NOFOLLOW [ 82.216467][ T5378] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 82.232596][ T5378] REISERFS (device loop4): using ordered data mode [ 82.250273][ T5380] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 82.253695][ T5378] reiserfs: using flush barriers [ 82.296588][ T5380] REISERFS (device loop5): using ordered data mode [ 82.303176][ T5380] reiserfs: using flush barriers [ 82.309593][ T5378] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 82.335542][ T5373] REISERFS (device loop3): Using r5 hash to sort names [pid 5383] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5373] <... mount resumed>) = 0 [pid 5373] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5373] chdir("./file0") = 0 [pid 5373] ioctl(4, LOOP_CLR_FD) = 0 [pid 5373] close(4 [pid 5383] <... write resumed>) = 4194304 [pid 5383] munmap(0x7fdb6a513000, 4194304 [pid 5373] <... close resumed>) = 0 [pid 5383] <... munmap resumed>) = 0 [pid 5373] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5383] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5373] <... futex resumed>) = 1 [pid 5372] <... futex resumed>) = 0 [pid 5383] <... openat resumed>) = 4 [pid 5373] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [ 82.354745][ T5380] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 82.373232][ T5373] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 82.390505][ T5378] REISERFS (device loop4): checking transaction log (loop4) [pid 5372] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5383] ioctl(4, LOOP_SET_FD, 3 [pid 5373] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5372] <... futex resumed>) = 0 [pid 5373] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5372] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5373] <... open resumed>) = 4 [pid 5076] <... umount2 resumed>) = 0 [pid 5076] umount2("./16/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5076] lstat("./16/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] umount2("./16/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5373] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5076] openat(AT_FDCWD, "./16/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5373] <... futex resumed>) = 1 [pid 5372] <... futex resumed>) = 0 [pid 5076] <... openat resumed>) = 4 [pid 5373] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5372] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5373] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5372] <... futex resumed>) = 0 [pid 5076] fstat(4, [pid 5376] <... mount resumed>) = 0 [pid 5373] ioctl(4, FS_IOC_GETVERSION [pid 5372] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5376] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5373] <... ioctl resumed>, 0x20000080) = 0 [pid 5076] getdents64(4, [pid 5376] <... openat resumed>) = 3 [pid 5373] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5076] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5376] chdir("./file0" [pid 5373] <... futex resumed>) = 1 [pid 5372] <... futex resumed>) = 0 [pid 5076] getdents64(4, [pid 5376] <... chdir resumed>) = 0 [pid 5373] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5372] exit_group(0 [pid 5076] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5376] ioctl(4, LOOP_CLR_FD [pid 5373] <... futex resumed>) = ? [pid 5372] <... exit_group resumed>) = ? [pid 5076] close(4 [pid 5376] <... ioctl resumed>) = 0 [pid 5373] +++ exited with 0 +++ [pid 5076] <... close resumed>) = 0 [pid 5383] <... ioctl resumed>) = 0 [pid 5376] close(4 [pid 5372] +++ exited with 0 +++ [pid 5076] rmdir("./16/file0" [pid 5383] close(3 [pid 5376] <... close resumed>) = 0 [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5372, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=19 /* 0.19 s */} --- [pid 5076] <... rmdir resumed>) = 0 [pid 5383] <... close resumed>) = 0 [ 82.420682][ T5380] REISERFS (device loop5): checking transaction log (loop5) [ 82.423047][ T5383] loop0: detected capacity change from 0 to 8192 [ 82.437880][ T5376] REISERFS (device loop1): Using r5 hash to sort names [ 82.450421][ T5376] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [pid 5076] getdents64(3, [pid 5383] mkdir("./file0", 0777 [pid 5076] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5383] <... mkdir resumed>) = 0 [pid 5376] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] umount2("./16", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] close(3 [pid 5383] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5376] <... futex resumed>) = 1 [pid 5375] <... futex resumed>) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... close resumed>) = 0 [pid 5376] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5375] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] openat(AT_FDCWD, "./16", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] rmdir("./16" [pid 5376] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5375] <... futex resumed>) = 0 [pid 5077] <... openat resumed>) = 3 [pid 5076] <... rmdir resumed>) = 0 [pid 5376] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5375] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5077] fstat(3, [pid 5076] mkdir("./17", 0777 [pid 5376] <... open resumed>) = 4 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] <... mkdir resumed>) = 0 [pid 5376] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] getdents64(3, [pid 5076] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5376] <... futex resumed>) = 1 [pid 5375] <... futex resumed>) = 0 [pid 5077] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5076] <... openat resumed>) = 3 [ 82.514271][ T5383] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5376] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5375] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] umount2("./16/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] ioctl(3, LOOP_CLR_FD [pid 5375] <... futex resumed>) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5375] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5077] lstat("./16/binderfs", [pid 5076] close(3 [pid 5376] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] <... close resumed>) = 0 [pid 5077] unlink("./16/binderfs" [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5376] ioctl(4, FS_IOC_GETVERSION [pid 5077] <... unlink resumed>) = 0 [pid 5077] umount2("./16/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... clone resumed>, child_tidptr=0x5555571745d0) = 5388 [pid 5376] <... ioctl resumed>, 0x20000080) = 0 ./strace-static-x86_64: Process 5388 attached [pid 5376] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5388] set_robust_list(0x5555571745e0, 24 [pid 5376] <... futex resumed>) = 1 [pid 5375] <... futex resumed>) = 0 [pid 5388] <... set_robust_list resumed>) = 0 [pid 5376] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5375] exit_group(0) = ? [pid 5376] <... futex resumed>) = ? [ 82.563463][ T5383] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 82.574676][ T5383] REISERFS (device loop0): using ordered data mode [ 82.581370][ T5383] reiserfs: using flush barriers [ 82.589492][ T5383] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5388] chdir("./17" [pid 5376] +++ exited with 0 +++ [pid 5375] +++ exited with 0 +++ [pid 5388] <... chdir resumed>) = 0 [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5375, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=21 /* 0.21 s */} --- [pid 5388] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5388] setpgid(0, 0) = 0 [pid 5075] umount2("./16", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5388] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5388] <... openat resumed>) = 3 [ 82.611800][ T5383] REISERFS (device loop0): checking transaction log (loop0) [pid 5075] openat(AT_FDCWD, "./16", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5388] write(3, "1000", 4) = 4 [pid 5075] <... openat resumed>) = 3 [pid 5388] close(3) = 0 [pid 5075] fstat(3, [pid 5388] symlink("/dev/binderfs", "./binderfs" [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5388] <... symlink resumed>) = 0 [pid 5380] <... mount resumed>) = 0 [pid 5388] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5075] getdents64(3, [pid 5388] <... futex resumed>) = 0 [pid 5380] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5075] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [ 82.663710][ T5380] REISERFS (device loop5): Using r5 hash to sort names [ 82.676465][ T5380] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 5388] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5380] <... openat resumed>) = 3 [pid 5388] <... mmap resumed>) = 0x7fdb72913000 [pid 5380] chdir("./file0" [pid 5077] <... umount2 resumed>) = 0 [pid 5075] umount2("./16/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5388] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5380] <... chdir resumed>) = 0 [pid 5077] umount2("./16/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5388] <... mprotect resumed>) = 0 [pid 5380] ioctl(4, LOOP_CLR_FD [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] lstat("./16/binderfs", [pid 5388] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5380] <... ioctl resumed>) = 0 [pid 5077] lstat("./16/file0", [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5380] close(4 [pid 5077] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] unlink("./16/binderfs" [pid 5388] <... clone resumed>, parent_tid=[5389], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5389 [pid 5380] <... close resumed>) = 0 [pid 5077] umount2("./16/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... unlink resumed>) = 0 [pid 5388] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5380] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] umount2("./16/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5388] <... futex resumed>) = 0 [pid 5380] <... futex resumed>) = 1 [pid 5379] <... futex resumed>) = 0 [pid 5077] openat(AT_FDCWD, "./16/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5388] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5380] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5379] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5380] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5379] <... futex resumed>) = 0 [pid 5077] <... openat resumed>) = 4 [pid 5380] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5379] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5077] fstat(4, [pid 5380] <... open resumed>) = 4 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5380] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] getdents64(4, [pid 5380] <... futex resumed>) = 1 [pid 5379] <... futex resumed>) = 0 [pid 5077] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5380] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5379] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] getdents64(4, [pid 5380] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5379] <... futex resumed>) = 0 [pid 5077] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5380] ioctl(4, FS_IOC_GETVERSION [pid 5379] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5077] close(4 [pid 5380] <... ioctl resumed>, 0x20000080) = 0 [pid 5077] <... close resumed>) = 0 [pid 5380] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] rmdir("./16/file0" [pid 5380] <... futex resumed>) = 1 [pid 5379] <... futex resumed>) = 0 [pid 5077] <... rmdir resumed>) = 0 [pid 5380] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5379] exit_group(0 [pid 5077] getdents64(3, ./strace-static-x86_64: Process 5389 attached [pid 5380] <... futex resumed>) = ? [pid 5379] <... exit_group resumed>) = ? [pid 5077] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5389] set_robust_list(0x7fdb729339e0, 24 [pid 5380] +++ exited with 0 +++ [pid 5379] +++ exited with 0 +++ [pid 5077] close(3 [pid 5389] <... set_robust_list resumed>) = 0 [pid 5077] <... close resumed>) = 0 [pid 5389] memfd_create("syzkaller", 0 [pid 5077] rmdir("./16" [pid 5389] <... memfd_create resumed>) = 3 [pid 5077] <... rmdir resumed>) = 0 [pid 5389] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5077] mkdir("./17", 0777 [pid 5389] <... mmap resumed>) = 0x7fdb6a513000 [pid 5077] <... mkdir resumed>) = 0 [pid 5077] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5379, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=16 /* 0.16 s */} --- [pid 5077] <... openat resumed>) = 3 [pid 5077] ioctl(3, LOOP_CLR_FD [pid 5079] umount2("./15", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5077] close(3 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... close resumed>) = 0 [pid 5079] openat(AT_FDCWD, "./15", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] <... openat resumed>) = 3 [pid 5079] fstat(3, [pid 5077] <... clone resumed>, child_tidptr=0x5555571745d0) = 5390 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 ./strace-static-x86_64: Process 5390 attached [pid 5390] set_robust_list(0x5555571745e0, 24 [ 82.707771][ T5383] REISERFS (device loop0): Using r5 hash to sort names [ 82.709303][ T5378] REISERFS (device loop4): Using r5 hash to sort names [ 82.745997][ T5383] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5079] umount2("./15/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5390] <... set_robust_list resumed>) = 0 [pid 5390] chdir("./17") = 0 [pid 5390] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5390] setpgid(0, 0) = 0 [pid 5390] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5390] write(3, "1000", 4) = 4 [pid 5390] close(3) = 0 [pid 5390] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5390] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5079] lstat("./15/binderfs", [pid 5390] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5390] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5390] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] unlink("./15/binderfs") = 0 [pid 5390] <... clone resumed>, parent_tid=[5391], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5391 [pid 5383] <... mount resumed>) = 0 [pid 5079] umount2("./15/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5390] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5390] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5383] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY./strace-static-x86_64: Process 5391 attached [pid 5391] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5391] memfd_create("syzkaller", 0 [pid 5383] <... openat resumed>) = 3 [pid 5391] <... memfd_create resumed>) = 3 [pid 5391] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [pid 5383] chdir("./file0") = 0 [pid 5383] ioctl(4, LOOP_CLR_FD) = 0 [pid 5383] close(4) = 0 [ 82.775009][ T5378] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [pid 5383] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5389] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5383] <... futex resumed>) = 1 [pid 5381] <... futex resumed>) = 0 [pid 5378] <... mount resumed>) = 0 [pid 5079] <... umount2 resumed>) = 0 [pid 5079] umount2("./15/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] lstat("./15/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] umount2("./15/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./15/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5383] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5381] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5378] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5079] <... openat resumed>) = 4 [pid 5079] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5079] getdents64(4, [pid 5381] <... futex resumed>) = 0 [pid 5079] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5383] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5381] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5378] <... openat resumed>) = 3 [pid 5079] close(4 [pid 5383] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5378] chdir("./file0" [pid 5079] <... close resumed>) = 0 [pid 5079] rmdir("./15/file0" [pid 5383] <... open resumed>) = 4 [pid 5378] <... chdir resumed>) = 0 [pid 5079] <... rmdir resumed>) = 0 [pid 5383] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5378] ioctl(4, LOOP_CLR_FD [pid 5079] getdents64(3, [pid 5383] <... futex resumed>) = 1 [pid 5381] <... futex resumed>) = 0 [pid 5079] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5378] <... ioctl resumed>) = 0 [pid 5383] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5381] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] close(3 [pid 5378] close(4 [pid 5383] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5381] <... futex resumed>) = 0 [pid 5079] <... close resumed>) = 0 [pid 5079] rmdir("./15" [pid 5381] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5378] <... close resumed>) = 0 [pid 5079] <... rmdir resumed>) = 0 [pid 5079] mkdir("./16", 0777) = 0 [pid 5079] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5079] ioctl(3, LOOP_CLR_FD) = 0 [pid 5079] close(3) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5392 [pid 5378] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5383] ioctl(4, FS_IOC_GETVERSION, 0x20000080) = 0 [pid 5378] <... futex resumed>) = 1 [pid 5377] <... futex resumed>) = 0 [pid 5383] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5378] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5377] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5383] <... futex resumed>) = 1 [pid 5381] <... futex resumed>) = 0 [pid 5378] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5377] <... futex resumed>) = 0 [pid 5383] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5381] exit_group(0 [pid 5378] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5377] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5383] <... futex resumed>) = ? [pid 5381] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5392 attached [pid 5392] set_robust_list(0x5555571745e0, 24 [pid 5378] <... open resumed>) = 4 [pid 5392] <... set_robust_list resumed>) = 0 [pid 5392] chdir("./16") = 0 [pid 5392] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5383] +++ exited with 0 +++ [pid 5381] +++ exited with 0 +++ [pid 5378] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5392] <... prctl resumed>) = 0 [pid 5378] <... futex resumed>) = 1 [pid 5377] <... futex resumed>) = 0 [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5381, si_uid=0, si_status=0, si_utime=0, si_stime=22 /* 0.22 s */} --- [pid 5392] setpgid(0, 0 [pid 5378] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5377] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5392] <... setpgid resumed>) = 0 [pid 5378] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5377] <... futex resumed>) = 0 [pid 5392] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5378] ioctl(4, FS_IOC_GETVERSION [pid 5392] <... openat resumed>) = 3 [pid 5392] write(3, "1000", 4 [pid 5378] <... ioctl resumed>, 0x20000080) = 0 [pid 5377] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5392] <... write resumed>) = 4 [pid 5378] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5377] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5392] close(3 [pid 5378] <... futex resumed>) = 0 [pid 5377] exit_group(0 [pid 5074] umount2("./16", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5392] <... close resumed>) = 0 [pid 5377] <... exit_group resumed>) = ? [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5392] symlink("/dev/binderfs", "./binderfs" [pid 5378] +++ exited with 0 +++ [pid 5392] <... symlink resumed>) = 0 [pid 5392] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5392] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5377] +++ exited with 0 +++ [pid 5074] openat(AT_FDCWD, "./16", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5392] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5074] <... openat resumed>) = 3 [pid 5392] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5393], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5393 [pid 5392] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5377, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} --- [pid 5074] fstat(3, [pid 5392] <... futex resumed>) = 0 [pid 5078] umount2("./16", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5392] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] getdents64(3, [pid 5078] openat(AT_FDCWD, "./16", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5074] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5078] <... openat resumed>) = 3 [pid 5078] fstat(3, [pid 5074] umount2("./16/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5078] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] getdents64(3, [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5078] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5078] umount2("./16/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] lstat("./16/binderfs", [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5078] lstat("./16/binderfs", [pid 5074] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5391] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5078] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5074] unlink("./16/binderfs" [pid 5078] unlink("./16/binderfs") = 0 [pid 5074] <... unlink resumed>) = 0 [pid 5078] umount2("./16/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] umount2("./16/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5393 attached [pid 5393] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5393] memfd_create("syzkaller", 0) = 3 [pid 5393] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [pid 5075] <... umount2 resumed>) = 0 [pid 5075] umount2("./16/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5075] lstat("./16/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] umount2("./16/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5075] openat(AT_FDCWD, "./16/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5075] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5075] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5075] close(4) = 0 [pid 5075] rmdir("./16/file0") = 0 [pid 5075] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5075] close(3) = 0 [pid 5075] rmdir("./16") = 0 [pid 5075] mkdir("./17", 0777) = 0 [pid 5075] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5075] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5075] close(3 [pid 5389] <... write resumed>) = 4194304 [pid 5075] <... close resumed>) = 0 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5394 ./strace-static-x86_64: Process 5394 attached [pid 5389] munmap(0x7fdb6a513000, 4194304 [pid 5394] set_robust_list(0x5555571745e0, 24 [pid 5389] <... munmap resumed>) = 0 [pid 5394] <... set_robust_list resumed>) = 0 [pid 5394] chdir("./17") = 0 [pid 5394] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5389] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5394] <... prctl resumed>) = 0 [pid 5394] setpgid(0, 0) = 0 [pid 5394] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5389] <... openat resumed>) = 4 [pid 5394] write(3, "1000", 4) = 4 [pid 5394] close(3) = 0 [pid 5394] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5389] ioctl(4, LOOP_SET_FD, 3 [pid 5394] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5394] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5394] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5394] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5395], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5395 [pid 5394] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5394] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5395 attached [pid 5395] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5395] memfd_create("syzkaller", 0) = 3 [pid 5395] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [pid 5393] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5391] <... write resumed>) = 4194304 [pid 5391] munmap(0x7fdb6a513000, 4194304) = 0 [pid 5391] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 5391] ioctl(4, LOOP_SET_FD, 3 [pid 5389] <... ioctl resumed>) = 0 [pid 5074] <... umount2 resumed>) = 0 [pid 5389] close(3) = 0 [pid 5389] mkdir("./file0", 0777 [pid 5074] umount2("./16/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5389] <... mkdir resumed>) = 0 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5389] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5074] lstat("./16/file0", [pid 5391] <... ioctl resumed>) = 0 [pid 5078] <... umount2 resumed>) = 0 [pid 5391] close(3) = 0 [pid 5078] umount2("./16/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5391] mkdir("./file0", 0777 [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 83.092642][ T5389] loop2: detected capacity change from 0 to 8192 [ 83.127505][ T5391] loop3: detected capacity change from 0 to 8192 [pid 5393] <... write resumed>) = 4194304 [pid 5391] <... mkdir resumed>) = 0 [pid 5078] lstat("./16/file0", [pid 5074] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5391] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5078] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5393] munmap(0x7fdb6a513000, 4194304 [pid 5078] umount2("./16/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] umount2("./16/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5078] openat(AT_FDCWD, "./16/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5078] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5078] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5078] close(4) = 0 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5078] rmdir("./16/file0") = 0 [pid 5074] openat(AT_FDCWD, "./16/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5078] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5074] <... openat resumed>) = 4 [pid 5078] close(3) = 0 [pid 5078] rmdir("./16") = 0 [pid 5074] fstat(4, [pid 5393] <... munmap resumed>) = 0 [pid 5078] mkdir("./17", 0777 [pid 5393] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5078] <... mkdir resumed>) = 0 [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5074] getdents64(4, [pid 5078] <... openat resumed>) = 3 [pid 5078] ioctl(3, LOOP_CLR_FD [pid 5074] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5078] <... ioctl resumed>) = -1 ENXIO (No such device or address) [ 83.162304][ T5389] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 83.194773][ T5389] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [pid 5078] close(3 [pid 5074] getdents64(4, [pid 5395] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5393] <... openat resumed>) = 4 [pid 5078] <... close resumed>) = 0 [pid 5074] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5393] ioctl(4, LOOP_SET_FD, 3 [pid 5074] close(4 [pid 5393] <... ioctl resumed>) = 0 [pid 5078] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5393] close(3 [pid 5074] <... close resumed>) = 0 [pid 5393] <... close resumed>) = 0 [pid 5078] <... clone resumed>, child_tidptr=0x5555571745d0) = 5398 [pid 5393] mkdir("./file0", 0777 [pid 5074] rmdir("./16/file0"./strace-static-x86_64: Process 5398 attached ) = 0 [pid 5398] set_robust_list(0x5555571745e0, 24 [pid 5393] <... mkdir resumed>) = 0 [pid 5398] <... set_robust_list resumed>) = 0 [ 83.195254][ T5391] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 83.204264][ T5389] REISERFS (device loop2): using ordered data mode [ 83.223756][ T5389] reiserfs: using flush barriers [ 83.234393][ T5389] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 83.246999][ T5393] loop5: detected capacity change from 0 to 8192 [pid 5398] chdir("./17" [pid 5393] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5074] getdents64(3, [pid 5398] <... chdir resumed>) = 0 [pid 5398] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5398] setpgid(0, 0) = 0 [pid 5398] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5074] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5398] write(3, "1000", 4 [pid 5074] close(3 [pid 5398] <... write resumed>) = 4 [pid 5074] <... close resumed>) = 0 [pid 5398] close(3 [pid 5074] rmdir("./16" [pid 5398] <... close resumed>) = 0 [pid 5074] <... rmdir resumed>) = 0 [pid 5398] symlink("/dev/binderfs", "./binderfs" [pid 5074] mkdir("./17", 0777 [pid 5398] <... symlink resumed>) = 0 [pid 5074] <... mkdir resumed>) = 0 [pid 5398] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5074] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5398] <... futex resumed>) = 0 [ 83.264936][ T5391] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 83.274875][ T5391] REISERFS (device loop3): using ordered data mode [ 83.282341][ T5391] reiserfs: using flush barriers [ 83.289654][ T5393] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 83.290498][ T5389] REISERFS (device loop2): checking transaction log (loop2) [pid 5074] <... openat resumed>) = 3 [pid 5395] <... write resumed>) = 4194304 [pid 5395] munmap(0x7fdb6a513000, 4194304) = 0 [pid 5395] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5395] ioctl(4, LOOP_SET_FD, 3 [pid 5398] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5074] ioctl(3, LOOP_CLR_FD [pid 5395] <... ioctl resumed>) = 0 [pid 5395] close(3) = 0 [pid 5395] mkdir("./file0", 0777 [pid 5074] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5398] <... mmap resumed>) = 0x7fdb72913000 [pid 5398] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5074] close(3) = 0 [pid 5395] <... mkdir resumed>) = 0 [pid 5395] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5398] <... mprotect resumed>) = 0 [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [ 83.302949][ T5391] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 83.330962][ T5395] loop1: detected capacity change from 0 to 8192 [ 83.342151][ T5393] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 83.352813][ T5393] REISERFS (device loop5): using ordered data mode [ 83.360021][ T5393] reiserfs: using flush barriers [pid 5398] clone(child_stack=0x7fdb729333f0, 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 5401 attached [pid 5074] <... clone resumed>, child_tidptr=0x5555571745d0) = 5401 [pid 5398] <... clone resumed>, parent_tid=[5402], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5402 [pid 5398] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5398] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5401] set_robust_list(0x5555571745e0, 24) = 0 [ 83.366830][ T5391] REISERFS (device loop3): checking transaction log (loop3) [pid 5401] chdir("./17"./strace-static-x86_64: Process 5402 attached ) = 0 [pid 5402] set_robust_list(0x7fdb729339e0, 24 [pid 5401] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5402] <... set_robust_list resumed>) = 0 [pid 5401] <... prctl resumed>) = 0 [pid 5402] memfd_create("syzkaller", 0 [pid 5401] setpgid(0, 0 [pid 5402] <... memfd_create resumed>) = 3 [pid 5402] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5401] <... setpgid resumed>) = 0 [pid 5402] <... mmap resumed>) = 0x7fdb6a513000 [pid 5401] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5401] write(3, "1000", 4) = 4 [pid 5401] close(3) = 0 [pid 5401] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5401] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5401] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [ 83.403922][ T5393] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 83.420521][ T5395] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 83.454214][ T5393] REISERFS (device loop5): checking transaction log (loop5) [pid 5401] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5401] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5402] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5391] <... mount resumed>) = 0 [pid 5401] <... clone resumed>, parent_tid=[5403], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5403 [pid 5401] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5401] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5403 attached [ 83.465048][ T5391] REISERFS (device loop3): Using r5 hash to sort names [ 83.472295][ T5391] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 83.490997][ T5395] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 83.509821][ T5395] REISERFS (device loop1): using ordered data mode [pid 5391] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5403] set_robust_list(0x7fdb729339e0, 24 [pid 5391] <... openat resumed>) = 3 [pid 5391] chdir("./file0" [pid 5403] <... set_robust_list resumed>) = 0 [pid 5391] <... chdir resumed>) = 0 [pid 5391] ioctl(4, LOOP_CLR_FD [pid 5403] memfd_create("syzkaller", 0 [pid 5391] <... ioctl resumed>) = 0 [pid 5403] <... memfd_create resumed>) = 3 [pid 5391] close(4 [pid 5403] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5391] <... close resumed>) = 0 [pid 5403] <... mmap resumed>) = 0x7fdb6a513000 [pid 5391] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5391] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5390] <... futex resumed>) = 0 [pid 5390] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5390] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5391] <... futex resumed>) = 0 [ 83.518944][ T5395] reiserfs: using flush barriers [pid 5391] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 5391] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5391] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5390] <... futex resumed>) = 0 [pid 5390] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5390] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5391] <... futex resumed>) = 0 [pid 5391] ioctl(4, FS_IOC_GETVERSION, 0x20000080) = 0 [pid 5391] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5391] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5403] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5390] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5390] exit_group(0) = ? [pid 5391] <... futex resumed>) = ? [pid 5391] +++ exited with 0 +++ [pid 5390] +++ exited with 0 +++ [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5390, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=18 /* 0.18 s */} --- [pid 5077] umount2("./17", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] openat(AT_FDCWD, "./17", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5077] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5077] umount2("./17/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] lstat("./17/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] unlink("./17/binderfs") = 0 [ 83.548320][ T5395] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5077] umount2("./17/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5403] <... write resumed>) = 4194304 [pid 5403] munmap(0x7fdb6a513000, 4194304) = 0 [pid 5403] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [ 83.625959][ T5395] REISERFS (device loop1): checking transaction log (loop1) [ 83.655085][ T5403] loop0: detected capacity change from 0 to 8192 [pid 5403] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5403] close(3) = 0 [pid 5403] mkdir("./file0", 0777 [pid 5402] <... write resumed>) = 4194304 [pid 5393] <... mount resumed>) = 0 [pid 5403] <... mkdir resumed>) = 0 [pid 5403] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5402] munmap(0x7fdb6a513000, 4194304 [ 83.675161][ T5393] REISERFS (device loop5): Using r5 hash to sort names [ 83.682463][ T5393] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 83.701366][ T5389] REISERFS (device loop2): Using r5 hash to sort names [ 83.708458][ T5403] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5393] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5402] <... munmap resumed>) = 0 [pid 5393] <... openat resumed>) = 3 [pid 5402] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5393] chdir("./file0" [pid 5402] <... openat resumed>) = 4 [pid 5393] <... chdir resumed>) = 0 [pid 5402] ioctl(4, LOOP_SET_FD, 3 [pid 5393] ioctl(4, LOOP_CLR_FD [pid 5402] <... ioctl resumed>) = 0 [pid 5393] <... ioctl resumed>) = 0 [pid 5393] close(4) = 0 [pid 5393] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5392] <... futex resumed>) = 0 [pid 5393] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5392] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5393] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5392] <... futex resumed>) = 0 [pid 5393] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5392] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5393] <... open resumed>) = 4 [pid 5389] <... mount resumed>) = 0 [pid 5393] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5392] <... futex resumed>) = 0 [pid 5393] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5392] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5389] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5402] close(3) = 0 [pid 5393] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5392] <... futex resumed>) = 0 [pid 5389] <... openat resumed>) = 3 [pid 5402] mkdir("./file0", 0777 [pid 5393] ioctl(4, FS_IOC_GETVERSION [pid 5392] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5389] chdir("./file0" [pid 5402] <... mkdir resumed>) = 0 [pid 5393] <... ioctl resumed>, 0x20000080) = 0 [pid 5389] <... chdir resumed>) = 0 [pid 5402] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5393] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5389] ioctl(4, LOOP_CLR_FD [pid 5393] <... futex resumed>) = 1 [pid 5392] <... futex resumed>) = 0 [pid 5389] <... ioctl resumed>) = 0 [ 83.721190][ T5389] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 83.732241][ T5403] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 83.743280][ T5402] loop4: detected capacity change from 0 to 8192 [ 83.755822][ T5403] REISERFS (device loop0): using ordered data mode [ 83.763208][ T5403] reiserfs: using flush barriers [pid 5393] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5392] exit_group(0 [pid 5389] close(4 [pid 5393] <... futex resumed>) = ? [pid 5392] <... exit_group resumed>) = ? [pid 5393] +++ exited with 0 +++ [pid 5392] +++ exited with 0 +++ [pid 5389] <... close resumed>) = 0 [pid 5389] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5392, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} --- [pid 5388] <... futex resumed>) = 0 [pid 5079] restart_syscall(<... resuming interrupted clone ...> [pid 5389] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5388] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] <... restart_syscall resumed>) = 0 [pid 5388] <... futex resumed>) = 0 [pid 5388] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5079] umount2("./16", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5389] <... open resumed>) = 4 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5389] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] openat(AT_FDCWD, "./16", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5389] <... futex resumed>) = 1 [pid 5388] <... futex resumed>) = 0 [pid 5389] ioctl(4, FS_IOC_GETVERSION [pid 5388] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] <... openat resumed>) = 3 [pid 5388] <... futex resumed>) = 0 [pid 5079] fstat(3, [pid 5389] <... ioctl resumed>, 0x20000080) = 0 [pid 5388] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5389] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] getdents64(3, [pid 5389] <... futex resumed>) = 1 [pid 5388] <... futex resumed>) = 0 [pid 5389] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5388] exit_group(0 [pid 5079] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5389] <... futex resumed>) = ? [pid 5388] <... exit_group resumed>) = ? [pid 5079] umount2("./16/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] lstat("./16/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] unlink("./16/binderfs" [pid 5389] +++ exited with 0 +++ [pid 5388] +++ exited with 0 +++ [pid 5079] <... unlink resumed>) = 0 [pid 5079] umount2("./16/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5388, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- [pid 5076] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5076] umount2("./17", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5076] openat(AT_FDCWD, "./17", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5076] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5076] umount2("./17/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5076] lstat("./17/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] unlink("./17/binderfs") = 0 [ 83.788273][ T5403] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 83.807328][ T5403] REISERFS (device loop0): checking transaction log (loop0) [pid 5076] umount2("./17/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... umount2 resumed>) = 0 [pid 5077] umount2("./17/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] lstat("./17/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] umount2("./17/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] openat(AT_FDCWD, "./17/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5077] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5077] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5077] close(4) = 0 [pid 5077] rmdir("./17/file0") = 0 [pid 5077] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5077] close(3) = 0 [pid 5077] rmdir("./17") = 0 [pid 5077] mkdir("./18", 0777) = 0 [pid 5077] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5077] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5077] close(3) = 0 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5406 [ 83.860247][ T5402] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 ./strace-static-x86_64: Process 5406 attached [pid 5406] set_robust_list(0x5555571745e0, 24) = 0 [pid 5406] chdir("./18") = 0 [pid 5406] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5406] setpgid(0, 0) = 0 [pid 5406] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5406] write(3, "1000", 4) = 4 [pid 5406] close(3) = 0 [pid 5406] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5406] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5406] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5406] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5406] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5407], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5407 [pid 5406] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5406] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5407 attached [pid 5407] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5407] memfd_create("syzkaller", 0) = 3 [pid 5407] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [ 83.945937][ T5402] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 83.977321][ T5403] REISERFS (device loop0): Using r5 hash to sort names [pid 5403] <... mount resumed>) = 0 [pid 5403] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5403] chdir("./file0") = 0 [pid 5403] ioctl(4, LOOP_CLR_FD) = 0 [pid 5403] close(4) = 0 [pid 5403] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5401] <... futex resumed>) = 0 [pid 5401] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 84.002363][ T5403] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 84.015249][ T5402] REISERFS (device loop4): using ordered data mode [pid 5401] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5403] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 5403] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5403] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5401] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5401] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5403] <... futex resumed>) = 0 [pid 5401] <... futex resumed>) = 1 [pid 5403] ioctl(4, FS_IOC_GETVERSION [pid 5401] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5403] <... ioctl resumed>, 0x20000080) = 0 [pid 5407] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5403] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5403] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5401] <... futex resumed>) = 0 [pid 5401] exit_group(0 [pid 5403] <... futex resumed>) = ? [pid 5401] <... exit_group resumed>) = ? [pid 5403] +++ exited with 0 +++ [pid 5401] +++ exited with 0 +++ [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5401, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=17 /* 0.17 s */} --- [pid 5074] umount2("./17", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] openat(AT_FDCWD, "./17", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5074] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5074] umount2("./17/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] lstat("./17/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5074] unlink("./17/binderfs") = 0 [ 84.048131][ T5395] REISERFS (device loop1): Using r5 hash to sort names [ 84.068551][ T5402] reiserfs: using flush barriers [ 84.081089][ T5395] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [pid 5074] umount2("./17/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... umount2 resumed>) = 0 [pid 5079] <... umount2 resumed>) = 0 [pid 5395] <... mount resumed>) = 0 [ 84.110644][ T5402] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5076] umount2("./17/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] <... umount2 resumed>) = 0 [pid 5079] umount2("./16/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] lstat("./16/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] umount2("./16/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./16/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5395] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5079] fstat(4, [pid 5395] <... openat resumed>) = 3 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] umount2("./17/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5395] chdir("./file0" [pid 5076] lstat("./17/file0", [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5395] <... chdir resumed>) = 0 [pid 5395] ioctl(4, LOOP_CLR_FD [pid 5076] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] lstat("./17/file0", [pid 5395] <... ioctl resumed>) = 0 [pid 5076] umount2("./17/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5395] close(4 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5395] <... close resumed>) = 0 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] umount2("./17/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5395] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] getdents64(4, [pid 5076] openat(AT_FDCWD, "./17/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5395] <... futex resumed>) = 1 [pid 5394] <... futex resumed>) = 0 [pid 5079] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5079] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5395] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5394] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5076] <... openat resumed>) = 4 [pid 5074] openat(AT_FDCWD, "./17/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5395] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5394] <... futex resumed>) = 0 [pid 5079] close(4 [pid 5076] fstat(4, [pid 5395] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5394] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5079] <... close resumed>) = 0 [pid 5074] <... openat resumed>) = 4 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5395] <... open resumed>) = 4 [pid 5079] rmdir("./16/file0" [pid 5076] getdents64(4, [pid 5074] fstat(4, [pid 5395] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] <... rmdir resumed>) = 0 [pid 5395] <... futex resumed>) = 1 [pid 5394] <... futex resumed>) = 0 [pid 5079] getdents64(3, [pid 5076] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5395] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5394] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5076] getdents64(4, [pid 5074] getdents64(4, [pid 5395] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5394] <... futex resumed>) = 0 [pid 5079] close(3 [pid 5076] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5074] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5395] ioctl(4, FS_IOC_GETVERSION [pid 5394] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5079] <... close resumed>) = 0 [pid 5076] close(4 [ 84.152944][ T5402] REISERFS (device loop4): checking transaction log (loop4) [pid 5074] getdents64(4, [pid 5395] <... ioctl resumed>, 0x20000080) = 0 [pid 5079] rmdir("./16" [pid 5076] <... close resumed>) = 0 [pid 5074] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5395] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] <... rmdir resumed>) = 0 [pid 5076] rmdir("./17/file0" [pid 5074] close(4 [pid 5395] <... futex resumed>) = 1 [pid 5394] <... futex resumed>) = 0 [pid 5079] mkdir("./17", 0777 [pid 5395] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5394] exit_group(0 [pid 5079] <... mkdir resumed>) = 0 [pid 5076] <... rmdir resumed>) = 0 [pid 5074] <... close resumed>) = 0 [pid 5395] <... futex resumed>) = ? [pid 5394] <... exit_group resumed>) = ? [pid 5079] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5076] getdents64(3, [pid 5074] rmdir("./17/file0" [pid 5395] +++ exited with 0 +++ [pid 5079] <... openat resumed>) = 3 [pid 5394] +++ exited with 0 +++ [pid 5079] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5076] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5079] close(3 [pid 5076] close(3 [pid 5074] <... rmdir resumed>) = 0 [pid 5407] <... write resumed>) = 4194304 [pid 5079] <... close resumed>) = 0 [pid 5076] <... close resumed>) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] rmdir("./17" [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5394, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=16 /* 0.16 s */} --- [pid 5074] getdents64(3, [pid 5079] <... clone resumed>, child_tidptr=0x5555571745d0) = 5408 [pid 5076] <... rmdir resumed>) = 0 [pid 5075] restart_syscall(<... resuming interrupted clone ...> [pid 5074] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5076] mkdir("./18", 0777 [pid 5075] <... restart_syscall resumed>) = 0 [pid 5074] close(3 [pid 5076] <... mkdir resumed>) = 0 [pid 5074] <... close resumed>) = 0 [pid 5076] openat(AT_FDCWD, "/dev/loop2", O_RDWR./strace-static-x86_64: Process 5408 attached [pid 5074] rmdir("./17" [pid 5408] set_robust_list(0x5555571745e0, 24 [pid 5076] <... openat resumed>) = 3 [pid 5075] umount2("./17", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5408] <... set_robust_list resumed>) = 0 [pid 5076] ioctl(3, LOOP_CLR_FD [pid 5074] <... rmdir resumed>) = 0 [pid 5408] chdir("./17" [pid 5076] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] mkdir("./18", 0777 [pid 5408] <... chdir resumed>) = 0 [pid 5076] close(3 [pid 5075] openat(AT_FDCWD, "./17", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5408] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5076] <... close resumed>) = 0 [pid 5074] <... mkdir resumed>) = 0 [pid 5408] <... prctl resumed>) = 0 [pid 5408] setpgid(0, 0) = 0 [pid 5408] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5408] write(3, "1000", 4) = 4 [pid 5408] close(3) = 0 [pid 5408] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5408] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5408] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5408] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5408] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5075] <... openat resumed>) = 3 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] fstat(3, [pid 5074] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5408] <... clone resumed>, parent_tid=[5409], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5409 [pid 5408] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5408] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] <... openat resumed>) = 3 [pid 5076] <... clone resumed>, child_tidptr=0x5555571745d0) = 5410 [pid 5075] getdents64(3, [pid 5074] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 5409 attached [pid 5407] munmap(0x7fdb6a513000, 4194304 [pid 5075] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5409] set_robust_list(0x7fdb729339e0, 24 [pid 5074] <... ioctl resumed>) = -1 ENXIO (No such device or address) ./strace-static-x86_64: Process 5410 attached [pid 5409] <... set_robust_list resumed>) = 0 [pid 5407] <... munmap resumed>) = 0 [pid 5075] umount2("./17/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] close(3 [pid 5409] memfd_create("syzkaller", 0 [pid 5407] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5410] set_robust_list(0x5555571745e0, 24 [pid 5074] <... close resumed>) = 0 [pid 5409] <... memfd_create resumed>) = 3 [pid 5407] <... openat resumed>) = 4 [pid 5410] <... set_robust_list resumed>) = 0 [pid 5075] lstat("./17/binderfs", [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5409] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5407] ioctl(4, LOOP_SET_FD, 3 [pid 5410] chdir("./18" [pid 5409] <... mmap resumed>) = 0x7fdb6a513000 [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5410] <... chdir resumed>) = 0 [pid 5075] unlink("./17/binderfs" [pid 5074] <... clone resumed>, child_tidptr=0x5555571745d0) = 5411 [pid 5410] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5075] <... unlink resumed>) = 0 [pid 5410] <... prctl resumed>) = 0 [pid 5075] umount2("./17/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5411 attached [pid 5410] setpgid(0, 0 [pid 5411] set_robust_list(0x5555571745e0, 24 [pid 5410] <... setpgid resumed>) = 0 [pid 5411] <... set_robust_list resumed>) = 0 [pid 5411] chdir("./18") = 0 [pid 5411] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5411] setpgid(0, 0 [pid 5410] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5411] <... setpgid resumed>) = 0 [pid 5411] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5410] <... openat resumed>) = 3 [pid 5411] <... openat resumed>) = 3 [pid 5410] write(3, "1000", 4 [pid 5411] write(3, "1000", 4 [pid 5410] <... write resumed>) = 4 [pid 5411] <... write resumed>) = 4 [pid 5410] close(3 [pid 5411] close(3 [pid 5410] <... close resumed>) = 0 [pid 5411] <... close resumed>) = 0 [pid 5410] symlink("/dev/binderfs", "./binderfs" [pid 5407] <... ioctl resumed>) = 0 [pid 5411] symlink("/dev/binderfs", "./binderfs" [pid 5410] <... symlink resumed>) = 0 [pid 5407] close(3 [pid 5411] <... symlink resumed>) = 0 [pid 5407] <... close resumed>) = 0 [pid 5410] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5411] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5407] mkdir("./file0", 0777 [pid 5411] <... futex resumed>) = 0 [pid 5407] <... mkdir resumed>) = 0 [pid 5411] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5407] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5411] <... mmap resumed>) = 0x7fdb72913000 [pid 5411] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5411] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5410] <... futex resumed>) = 0 [pid 5411] <... clone resumed>, parent_tid=[5413], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5413 [pid 5410] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5411] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5410] <... mmap resumed>) = 0x7fdb72913000 [pid 5411] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [ 84.299758][ T5407] loop3: detected capacity change from 0 to 8192 [ 84.336768][ T5402] REISERFS (device loop4): Using r5 hash to sort names [pid 5410] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 ./strace-static-x86_64: Process 5413 attached [pid 5410] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5413] set_robust_list(0x7fdb729339e0, 24 [pid 5410] <... clone resumed>, parent_tid=[5414], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5414 [pid 5413] <... set_robust_list resumed>) = 0 [pid 5410] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5413] memfd_create("syzkaller", 0 [pid 5410] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5413] <... memfd_create resumed>) = 3 ./strace-static-x86_64: Process 5414 attached [pid 5414] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5414] memfd_create("syzkaller", 0) = 3 [pid 5414] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [pid 5413] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [ 84.349774][ T5407] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 84.367802][ T5402] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [pid 5414] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5409] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5402] <... mount resumed>) = 0 [pid 5402] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5402] chdir("./file0") = 0 [pid 5402] ioctl(4, LOOP_CLR_FD) = 0 [pid 5402] close(4) = 0 [pid 5402] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5398] <... futex resumed>) = 0 [pid 5398] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5398] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5402] <... futex resumed>) = 1 [pid 5402] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5414] <... write resumed>) = 4194304 [pid 5402] <... open resumed>) = 4 [ 84.422508][ T5407] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [pid 5402] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5398] <... futex resumed>) = 0 [pid 5402] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5398] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5402] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5398] <... futex resumed>) = 0 [pid 5402] ioctl(4, FS_IOC_GETVERSION [pid 5398] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5402] <... ioctl resumed>, 0x20000080) = 0 [pid 5402] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5414] munmap(0x7fdb6a513000, 4194304 [pid 5409] <... write resumed>) = 4194304 [pid 5402] <... futex resumed>) = 1 [pid 5398] <... futex resumed>) = 0 [pid 5414] <... munmap resumed>) = 0 [pid 5409] munmap(0x7fdb6a513000, 4194304 [pid 5402] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5398] exit_group(0 [pid 5414] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5402] <... futex resumed>) = ? [pid 5398] <... exit_group resumed>) = ? [pid 5414] <... openat resumed>) = 4 [pid 5413] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5409] <... munmap resumed>) = 0 [pid 5402] +++ exited with 0 +++ [pid 5398] +++ exited with 0 +++ [pid 5075] <... umount2 resumed>) = 0 [ 84.493736][ T5407] REISERFS (device loop3): using ordered data mode [ 84.500909][ T5407] reiserfs: using flush barriers [ 84.510552][ T5407] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5414] ioctl(4, LOOP_SET_FD, 3 [pid 5409] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5078] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5398, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=17 /* 0.17 s */} --- [pid 5075] umount2("./17/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5078] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5078] umount2("./17", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5409] <... openat resumed>) = 4 [pid 5078] openat(AT_FDCWD, "./17", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5078] <... openat resumed>) = 3 [pid 5078] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] getdents64(3, [pid 5409] ioctl(4, LOOP_SET_FD, 3 [pid 5078] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5075] lstat("./17/file0", [pid 5078] umount2("./17/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5078] lstat("./17/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5078] unlink("./17/binderfs") = 0 [pid 5078] umount2("./17/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5414] <... ioctl resumed>) = 0 [pid 5414] close(3) = 0 [pid 5414] mkdir("./file0", 0777) = 0 [pid 5414] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5413] <... write resumed>) = 4194304 [pid 5409] <... ioctl resumed>) = 0 [pid 5075] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5413] munmap(0x7fdb6a513000, 4194304 [pid 5409] close(3 [pid 5075] umount2("./17/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5413] <... munmap resumed>) = 0 [pid 5409] <... close resumed>) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5413] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5409] mkdir("./file0", 0777 [pid 5075] openat(AT_FDCWD, "./17/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5413] <... openat resumed>) = 4 [pid 5409] <... mkdir resumed>) = 0 [pid 5413] ioctl(4, LOOP_SET_FD, 3 [pid 5075] <... openat resumed>) = 4 [pid 5075] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5409] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5075] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5075] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5413] <... ioctl resumed>) = 0 [pid 5075] close(4 [ 84.539369][ T5414] loop2: detected capacity change from 0 to 8192 [ 84.554871][ T5409] loop5: detected capacity change from 0 to 8192 [ 84.560078][ T5407] REISERFS (device loop3): checking transaction log (loop3) [ 84.579666][ T5413] loop0: detected capacity change from 0 to 8192 [pid 5413] close(3 [pid 5075] <... close resumed>) = 0 [pid 5413] <... close resumed>) = 0 [pid 5075] rmdir("./17/file0" [pid 5413] mkdir("./file0", 0777 [pid 5075] <... rmdir resumed>) = 0 [pid 5413] <... mkdir resumed>) = 0 [pid 5075] getdents64(3, [pid 5413] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5075] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5075] close(3) = 0 [pid 5075] rmdir("./17") = 0 [pid 5075] mkdir("./18", 0777) = 0 [pid 5075] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5075] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5075] close(3) = 0 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5418 [ 84.590443][ T5414] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 84.606763][ T5409] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 84.616041][ T5414] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 84.629322][ T5414] REISERFS (device loop2): using ordered data mode [ 84.636573][ T5414] reiserfs: using flush barriers ./strace-static-x86_64: Process 5418 attached [ 84.644370][ T5409] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 84.650407][ T5413] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 84.654074][ T5414] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 84.684331][ T5409] REISERFS (device loop5): using ordered data mode [pid 5418] set_robust_list(0x5555571745e0, 24) = 0 [pid 5418] chdir("./18") = 0 [pid 5418] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5418] setpgid(0, 0) = 0 [pid 5418] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5418] write(3, "1000", 4) = 4 [pid 5418] close(3) = 0 [pid 5418] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5418] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5418] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5418] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5418] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5419], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5419 [pid 5418] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5418] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5419 attached [pid 5419] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5419] memfd_create("syzkaller", 0) = 3 [pid 5419] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [ 84.690909][ T5409] reiserfs: using flush barriers [ 84.698010][ T5413] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 84.700168][ T5414] REISERFS (device loop2): checking transaction log (loop2) [ 84.715553][ T5409] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5078] <... umount2 resumed>) = 0 [ 84.755512][ T5413] REISERFS (device loop0): using ordered data mode [ 84.762081][ T5413] reiserfs: using flush barriers [ 84.763994][ T5409] REISERFS (device loop5): checking transaction log (loop5) [pid 5419] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5078] umount2("./17/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5078] lstat("./17/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] umount2("./17/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5078] openat(AT_FDCWD, "./17/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [ 84.817058][ T5413] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 84.838908][ T5413] REISERFS (device loop0): checking transaction log (loop0) [ 84.850209][ T5407] REISERFS (device loop3): Using r5 hash to sort names [pid 5078] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5078] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5078] close(4) = 0 [pid 5078] rmdir("./17/file0") = 0 [pid 5078] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5078] close(3) = 0 [pid 5078] rmdir("./17") = 0 [pid 5078] mkdir("./18", 0777) = 0 [pid 5078] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5078] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5078] close(3) = 0 [pid 5078] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5420 ./strace-static-x86_64: Process 5420 attached [ 84.858844][ T5407] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [pid 5420] set_robust_list(0x5555571745e0, 24) = 0 [pid 5407] <... mount resumed>) = 0 [pid 5420] chdir("./18" [pid 5407] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5420] <... chdir resumed>) = 0 [pid 5420] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5407] <... openat resumed>) = 3 [pid 5420] <... prctl resumed>) = 0 [pid 5407] chdir("./file0" [pid 5420] setpgid(0, 0 [pid 5407] <... chdir resumed>) = 0 [pid 5420] <... setpgid resumed>) = 0 [pid 5407] ioctl(4, LOOP_CLR_FD [pid 5420] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5407] <... ioctl resumed>) = 0 [pid 5420] <... openat resumed>) = 3 [pid 5407] close(4 [pid 5420] write(3, "1000", 4 [pid 5407] <... close resumed>) = 0 [pid 5420] <... write resumed>) = 4 [pid 5407] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5420] close(3 [pid 5407] <... futex resumed>) = 1 [pid 5406] <... futex resumed>) = 0 [pid 5420] <... close resumed>) = 0 [pid 5407] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5406] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5420] symlink("/dev/binderfs", "./binderfs" [pid 5407] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5406] <... futex resumed>) = 0 [pid 5420] <... symlink resumed>) = 0 [pid 5407] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5406] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5420] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5407] <... open resumed>) = 4 [pid 5420] <... futex resumed>) = 0 [pid 5407] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5420] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5407] <... futex resumed>) = 1 [pid 5406] <... futex resumed>) = 0 [pid 5420] <... mmap resumed>) = 0x7fdb72913000 [pid 5407] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5406] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5420] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5407] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5406] <... futex resumed>) = 0 [pid 5420] <... mprotect resumed>) = 0 [pid 5407] ioctl(4, FS_IOC_GETVERSION [pid 5406] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5420] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5407] <... ioctl resumed>, 0x20000080) = 0 [pid 5407] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5420] <... clone resumed>, parent_tid=[5421], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5421 [pid 5407] <... futex resumed>) = 1 [pid 5406] <... futex resumed>) = 0 [pid 5420] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5407] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5406] exit_group(0 [pid 5420] <... futex resumed>) = 0 [pid 5407] <... futex resumed>) = ? [pid 5406] <... exit_group resumed>) = ? [pid 5407] +++ exited with 0 +++ [pid 5406] +++ exited with 0 +++ [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5406, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} --- [pid 5420] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5077] umount2("./18", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] openat(AT_FDCWD, "./18", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY./strace-static-x86_64: Process 5421 attached ) = 3 [pid 5077] fstat(3, [pid 5421] set_robust_list(0x7fdb729339e0, 24 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5421] <... set_robust_list resumed>) = 0 [pid 5077] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5421] memfd_create("syzkaller", 0 [pid 5077] umount2("./18/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5421] <... memfd_create resumed>) = 3 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5421] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5077] lstat("./18/binderfs", [pid 5421] <... mmap resumed>) = 0x7fdb6a513000 [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] unlink("./18/binderfs") = 0 [ 85.004595][ T5414] REISERFS (device loop2): Using r5 hash to sort names [ 85.011830][ T5414] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 85.014361][ T5413] REISERFS (device loop0): Using r5 hash to sort names [pid 5077] umount2("./18/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5419] <... write resumed>) = 4194304 [pid 5419] munmap(0x7fdb6a513000, 4194304) = 0 [pid 5419] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5419] ioctl(4, LOOP_SET_FD, 3 [pid 5414] <... mount resumed>) = 0 [pid 5419] <... ioctl resumed>) = 0 [pid 5414] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5419] close(3) = 0 [pid 5419] mkdir("./file0", 0777 [pid 5413] <... mount resumed>) = 0 [pid 5419] <... mkdir resumed>) = 0 [pid 5413] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5419] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5413] <... openat resumed>) = 3 [pid 5413] chdir("./file0") = 0 [pid 5414] <... openat resumed>) = 3 [pid 5413] ioctl(4, LOOP_CLR_FD [pid 5414] chdir("./file0") = 0 [pid 5414] ioctl(4, LOOP_CLR_FD) = 0 [ 85.057196][ T5413] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 85.072326][ T5419] loop1: detected capacity change from 0 to 8192 [pid 5414] close(4 [pid 5421] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5414] <... close resumed>) = 0 [pid 5413] <... ioctl resumed>) = 0 [pid 5414] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5414] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5413] close(4 [pid 5410] <... futex resumed>) = 0 [pid 5413] <... close resumed>) = 0 [pid 5410] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5413] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5410] <... futex resumed>) = 1 [pid 5413] <... futex resumed>) = 1 [pid 5411] <... futex resumed>) = 0 [pid 5410] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5414] <... futex resumed>) = 0 [pid 5413] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5411] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [ 85.096578][ T5419] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 85.117537][ T5419] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 85.127188][ T5409] REISERFS (device loop5): Using r5 hash to sort names [pid 5414] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5413] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5411] <... futex resumed>) = 0 [pid 5421] <... write resumed>) = 4194304 [pid 5414] <... open resumed>) = 4 [pid 5411] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5421] munmap(0x7fdb6a513000, 4194304 [pid 5414] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5413] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5409] <... mount resumed>) = 0 [pid 5421] <... munmap resumed>) = 0 [pid 5414] <... futex resumed>) = 1 [pid 5410] <... futex resumed>) = 0 [pid 5414] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5413] <... open resumed>) = 4 [pid 5421] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5410] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5409] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5421] <... openat resumed>) = 4 [pid 5414] <... futex resumed>) = 0 [pid 5413] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5410] <... futex resumed>) = 1 [pid 5409] <... openat resumed>) = 3 [pid 5421] ioctl(4, LOOP_SET_FD, 3 [pid 5414] ioctl(4, FS_IOC_GETVERSION [pid 5413] <... futex resumed>) = 1 [pid 5411] <... futex resumed>) = 0 [pid 5410] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5409] chdir("./file0" [pid 5414] <... ioctl resumed>, 0x20000080) = 0 [pid 5411] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5414] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5411] <... futex resumed>) = 0 [pid 5414] <... futex resumed>) = 0 [pid 5411] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5414] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5421] <... ioctl resumed>) = 0 [pid 5413] ioctl(4, FS_IOC_GETVERSION [pid 5410] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5409] <... chdir resumed>) = 0 [pid 5421] close(3 [pid 5413] <... ioctl resumed>, 0x20000080) = 0 [pid 5410] exit_group(0 [pid 5409] ioctl(4, LOOP_CLR_FD [pid 5421] <... close resumed>) = 0 [pid 5409] <... ioctl resumed>) = 0 [pid 5421] mkdir("./file0", 0777 [pid 5413] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5410] <... exit_group resumed>) = ? [pid 5409] close(4 [pid 5421] <... mkdir resumed>) = 0 [pid 5414] <... futex resumed>) = ? [pid 5421] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5414] +++ exited with 0 +++ [pid 5413] <... futex resumed>) = 1 [pid 5411] <... futex resumed>) = 0 [pid 5410] +++ exited with 0 +++ [pid 5409] <... close resumed>) = 0 [pid 5077] <... umount2 resumed>) = 0 [pid 5411] exit_group(0) = ? [ 85.160165][ T5409] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 85.165998][ T5419] REISERFS (device loop1): using ordered data mode [ 85.189954][ T5421] loop4: detected capacity change from 0 to 8192 [pid 5409] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] umount2("./18/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5413] +++ exited with 0 +++ [pid 5411] +++ exited with 0 +++ [pid 5409] <... futex resumed>) = 1 [pid 5408] <... futex resumed>) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5410, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=18 /* 0.18 s */} --- [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5411, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=17 /* 0.17 s */} --- [pid 5409] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5408] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] lstat("./18/file0", [pid 5076] restart_syscall(<... resuming interrupted clone ...> [pid 5409] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5408] <... futex resumed>) = 0 [pid 5408] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5077] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] <... restart_syscall resumed>) = 0 [pid 5409] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5077] umount2("./18/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5409] <... open resumed>) = 4 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] openat(AT_FDCWD, "./18/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5074] umount2("./18", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5409] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] <... openat resumed>) = 4 [pid 5076] umount2("./18", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5409] <... futex resumed>) = 1 [pid 5408] <... futex resumed>) = 0 [pid 5077] fstat(4, [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] openat(AT_FDCWD, "./18", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5409] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5408] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] openat(AT_FDCWD, "./18", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5409] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5408] <... futex resumed>) = 0 [pid 5077] getdents64(4, [pid 5074] <... openat resumed>) = 3 [pid 5409] ioctl(4, FS_IOC_GETVERSION [pid 5408] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5076] <... openat resumed>) = 3 [pid 5074] fstat(3, [pid 5077] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5409] <... ioctl resumed>, 0x20000080) = 0 [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5409] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] getdents64(4, [pid 5076] fstat(3, [pid 5074] getdents64(3, [pid 5409] <... futex resumed>) = 1 [pid 5408] <... futex resumed>) = 0 [pid 5077] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5409] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5408] exit_group(0 [pid 5076] getdents64(3, [pid 5408] <... exit_group resumed>) = ? [pid 5409] <... futex resumed>) = ? [pid 5077] close(4 [pid 5076] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5409] +++ exited with 0 +++ [ 85.207761][ T5419] reiserfs: using flush barriers [ 85.218014][ T5419] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 85.237093][ T5421] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 85.246738][ T5419] REISERFS (device loop1): checking transaction log (loop1) [pid 5408] +++ exited with 0 +++ [pid 5077] <... close resumed>) = 0 [pid 5076] umount2("./18/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] umount2("./18/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5408, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=19 /* 0.19 s */} --- [pid 5077] rmdir("./18/file0" [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... rmdir resumed>) = 0 [pid 5074] lstat("./18/binderfs", [pid 5076] lstat("./18/binderfs", [pid 5079] umount2("./17", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] getdents64(3, [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5074] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5076] unlink("./18/binderfs" [pid 5074] unlink("./18/binderfs" [pid 5079] openat(AT_FDCWD, "./17", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] <... unlink resumed>) = 0 [pid 5074] <... unlink resumed>) = 0 [pid 5079] <... openat resumed>) = 3 [pid 5077] close(3 [pid 5076] umount2("./18/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] umount2("./18/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] fstat(3, [pid 5077] <... close resumed>) = 0 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] rmdir("./18") = 0 [pid 5077] mkdir("./19", 0777) = 0 [pid 5077] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5077] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5077] close(3) = 0 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5424 [pid 5079] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5079] umount2("./17/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] lstat("./17/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] unlink("./17/binderfs") = 0 [ 85.265548][ T5421] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 85.278221][ T5421] REISERFS (device loop4): using ordered data mode [ 85.287418][ T5421] reiserfs: using flush barriers [ 85.296141][ T5421] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5079] umount2("./17/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5424 attached [ 85.313771][ T5421] REISERFS (device loop4): checking transaction log (loop4) [pid 5424] set_robust_list(0x5555571745e0, 24) = 0 [pid 5424] chdir("./19") = 0 [pid 5424] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5424] setpgid(0, 0) = 0 [pid 5424] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5424] write(3, "1000", 4) = 4 [pid 5424] close(3) = 0 [pid 5424] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5424] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5424] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5424] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5424] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5425], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5425 [pid 5424] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5424] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5425 attached [pid 5425] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5425] memfd_create("syzkaller", 0) = 3 [pid 5425] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [pid 5074] <... umount2 resumed>) = 0 [pid 5425] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5074] umount2("./18/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] lstat("./18/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] umount2("./18/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] openat(AT_FDCWD, "./18/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5074] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5074] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5074] close(4) = 0 [ 85.492239][ T5421] REISERFS (device loop4): Using r5 hash to sort names [ 85.501431][ T5419] REISERFS (device loop1): Using r5 hash to sort names [ 85.522433][ T5421] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [pid 5421] <... mount resumed>) = 0 [pid 5079] <... umount2 resumed>) = 0 [pid 5076] <... umount2 resumed>) = 0 [pid 5074] rmdir("./18/file0" [pid 5421] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5079] umount2("./17/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] umount2("./18/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] <... rmdir resumed>) = 0 [pid 5421] <... openat resumed>) = 3 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] getdents64(3, [pid 5421] chdir("./file0" [pid 5079] lstat("./17/file0", [pid 5076] lstat("./18/file0", [pid 5074] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5421] <... chdir resumed>) = 0 [pid 5079] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] close(3 [pid 5421] ioctl(4, LOOP_CLR_FD [pid 5079] umount2("./17/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] umount2("./18/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] <... close resumed>) = 0 [pid 5421] <... ioctl resumed>) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] rmdir("./18" [pid 5421] close(4 [pid 5079] openat(AT_FDCWD, "./17/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] openat(AT_FDCWD, "./18/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5074] <... rmdir resumed>) = 0 [pid 5421] <... close resumed>) = 0 [pid 5074] mkdir("./19", 0777) = 0 [pid 5074] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5074] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5074] close(3) = 0 [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] <... openat resumed>) = 4 [pid 5076] <... openat resumed>) = 4 [pid 5421] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5420] <... futex resumed>) = 0 [pid 5079] fstat(4, [pid 5076] fstat(4, [pid 5074] <... clone resumed>, child_tidptr=0x5555571745d0) = 5426 [pid 5421] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5420] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5421] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5420] <... futex resumed>) = 0 [pid 5079] getdents64(4, [pid 5076] getdents64(4, [pid 5421] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5420] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5079] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5076] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 ./strace-static-x86_64: Process 5426 attached [pid 5421] <... open resumed>) = 4 [pid 5079] getdents64(4, [pid 5076] getdents64(4, [pid 5421] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5076] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5421] <... futex resumed>) = 1 [pid 5426] set_robust_list(0x5555571745e0, 24 [pid 5420] <... futex resumed>) = 0 [pid 5079] close(4 [pid 5076] close(4 [pid 5426] <... set_robust_list resumed>) = 0 [pid 5421] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5420] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] <... close resumed>) = 0 [pid 5076] <... close resumed>) = 0 [pid 5426] chdir("./19" [pid 5421] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5426] <... chdir resumed>) = 0 [pid 5420] <... futex resumed>) = 0 [pid 5421] ioctl(4, FS_IOC_GETVERSION [pid 5079] rmdir("./17/file0" [pid 5076] rmdir("./18/file0" [pid 5426] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5420] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5419] <... mount resumed>) = 0 [pid 5079] <... rmdir resumed>) = 0 [pid 5076] <... rmdir resumed>) = 0 [pid 5426] <... prctl resumed>) = 0 [pid 5421] <... ioctl resumed>, 0x20000080) = 0 [pid 5419] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5079] getdents64(3, [pid 5076] getdents64(3, [pid 5426] setpgid(0, 0 [pid 5421] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5419] <... openat resumed>) = 3 [pid 5079] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5076] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5426] <... setpgid resumed>) = 0 [pid 5421] <... futex resumed>) = 1 [pid 5420] <... futex resumed>) = 0 [pid 5419] chdir("./file0" [pid 5079] close(3 [pid 5076] close(3 [pid 5426] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5421] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5420] exit_group(0 [pid 5419] <... chdir resumed>) = 0 [pid 5079] <... close resumed>) = 0 [pid 5076] <... close resumed>) = 0 [pid 5426] <... openat resumed>) = 3 [pid 5421] <... futex resumed>) = ? [pid 5420] <... exit_group resumed>) = ? [pid 5419] ioctl(4, LOOP_CLR_FD [pid 5079] rmdir("./17" [pid 5076] rmdir("./18" [pid 5426] write(3, "1000", 4 [pid 5421] +++ exited with 0 +++ [pid 5419] <... ioctl resumed>) = 0 [pid 5426] <... write resumed>) = 4 [pid 5420] +++ exited with 0 +++ [pid 5419] close(4 [pid 5426] close(3 [pid 5419] <... close resumed>) = 0 [pid 5079] <... rmdir resumed>) = 0 [pid 5076] <... rmdir resumed>) = 0 [pid 5426] <... close resumed>) = 0 [pid 5419] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] mkdir("./18", 0777 [pid 5078] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5420, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=15 /* 0.15 s */} --- [pid 5076] mkdir("./19", 0777 [pid 5426] symlink("/dev/binderfs", "./binderfs" [pid 5419] <... futex resumed>) = 1 [pid 5418] <... futex resumed>) = 0 [ 85.551577][ T5419] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [pid 5426] <... symlink resumed>) = 0 [pid 5419] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5418] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] <... mkdir resumed>) = 0 [pid 5078] restart_syscall(<... resuming interrupted clone ...> [pid 5076] <... mkdir resumed>) = 0 [pid 5426] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5419] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5418] <... futex resumed>) = 0 [pid 5079] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5078] <... restart_syscall resumed>) = 0 [pid 5076] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5426] <... futex resumed>) = 0 [pid 5419] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5418] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5079] <... openat resumed>) = 3 [pid 5076] <... openat resumed>) = 3 [pid 5426] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5419] <... open resumed>) = 4 [pid 5079] ioctl(3, LOOP_CLR_FD [pid 5076] ioctl(3, LOOP_CLR_FD [pid 5426] <... mmap resumed>) = 0x7fdb72913000 [pid 5419] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5078] umount2("./18", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5426] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5419] <... futex resumed>) = 1 [pid 5418] <... futex resumed>) = 0 [pid 5079] close(3 [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5426] <... mprotect resumed>) = 0 [pid 5425] <... write resumed>) = 4194304 [pid 5419] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5418] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] <... close resumed>) = 0 [pid 5078] openat(AT_FDCWD, "./18", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] close(3 [pid 5426] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5419] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5418] <... futex resumed>) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5078] <... openat resumed>) = 3 [pid 5425] munmap(0x7fdb6a513000, 4194304 [pid 5419] ioctl(4, FS_IOC_GETVERSION [pid 5418] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5076] <... close resumed>) = 0 [pid 5426] <... clone resumed>, parent_tid=[5427], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5427 [pid 5419] <... ioctl resumed>, 0x20000080) = 0 [pid 5078] fstat(3, [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5426] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5425] <... munmap resumed>) = 0 [pid 5419] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] <... clone resumed>, child_tidptr=0x5555571745d0) = 5428 [pid 5078] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5426] <... futex resumed>) = 0 [pid 5425] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5419] <... futex resumed>) = 1 [pid 5418] <... futex resumed>) = 0 [pid 5078] getdents64(3, ./strace-static-x86_64: Process 5428 attached [pid 5426] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5425] <... openat resumed>) = 4 [pid 5419] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5418] exit_group(0 [pid 5078] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5076] <... clone resumed>, child_tidptr=0x5555571745d0) = 5429 ./strace-static-x86_64: Process 5427 attached [pid 5428] set_robust_list(0x5555571745e0, 24 [pid 5425] ioctl(4, LOOP_SET_FD, 3 [pid 5419] <... futex resumed>) = ? [pid 5418] <... exit_group resumed>) = ? [pid 5078] umount2("./18/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5427] set_robust_list(0x7fdb729339e0, 24 [pid 5419] +++ exited with 0 +++ [pid 5427] <... set_robust_list resumed>) = 0 [pid 5427] memfd_create("syzkaller", 0) = 3 [pid 5427] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [pid 5428] <... set_robust_list resumed>) = 0 [pid 5418] +++ exited with 0 +++ [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5429 attached [pid 5428] chdir("./18" [pid 5078] lstat("./18/binderfs", [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5418, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=18 /* 0.18 s */} --- [pid 5429] set_robust_list(0x5555571745e0, 24 [pid 5428] <... chdir resumed>) = 0 [pid 5425] <... ioctl resumed>) = 0 [pid 5078] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5429] <... set_robust_list resumed>) = 0 [pid 5428] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5425] close(3 [pid 5078] unlink("./18/binderfs" [pid 5428] <... prctl resumed>) = 0 [pid 5425] <... close resumed>) = 0 [pid 5429] chdir("./19" [pid 5428] setpgid(0, 0 [pid 5425] mkdir("./file0", 0777 [pid 5078] <... unlink resumed>) = 0 [pid 5075] umount2("./18", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5429] <... chdir resumed>) = 0 [pid 5428] <... setpgid resumed>) = 0 [pid 5078] umount2("./18/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5429] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5428] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5425] <... mkdir resumed>) = 0 [pid 5075] openat(AT_FDCWD, "./18", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5429] <... prctl resumed>) = 0 [pid 5428] <... openat resumed>) = 3 [pid 5429] setpgid(0, 0) = 0 [pid 5429] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5075] <... openat resumed>) = 3 [pid 5429] <... openat resumed>) = 3 [pid 5428] write(3, "1000", 4 [pid 5075] fstat(3, [pid 5429] write(3, "1000", 4 [pid 5428] <... write resumed>) = 4 [pid 5425] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5429] <... write resumed>) = 4 [pid 5428] close(3 [pid 5075] getdents64(3, [pid 5429] close(3 [pid 5428] <... close resumed>) = 0 [pid 5075] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5429] <... close resumed>) = 0 [pid 5428] symlink("/dev/binderfs", "./binderfs" [pid 5075] umount2("./18/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5429] symlink("/dev/binderfs", "./binderfs" [pid 5428] <... symlink resumed>) = 0 [pid 5429] <... symlink resumed>) = 0 [pid 5428] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5429] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5428] <... futex resumed>) = 0 [pid 5075] lstat("./18/binderfs", [pid 5429] <... futex resumed>) = 0 [pid 5428] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5429] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5428] <... mmap resumed>) = 0x7fdb72913000 [pid 5075] unlink("./18/binderfs" [pid 5429] <... mmap resumed>) = 0x7fdb72913000 [pid 5429] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5429] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5431], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5431 [pid 5429] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 85.637185][ T5425] loop3: detected capacity change from 0 to 8192 [pid 5429] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5428] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5075] <... unlink resumed>) = 0 [pid 5428] <... mprotect resumed>) = 0 [pid 5075] umount2("./18/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5428] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5432], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5432 [pid 5428] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5428] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5432 attached [pid 5432] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5432] memfd_create("syzkaller", 0) = 3 [pid 5432] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 ./strace-static-x86_64: Process 5431 attached [pid 5431] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5431] memfd_create("syzkaller", 0) = 3 [pid 5431] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [ 85.677200][ T5425] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5427] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [ 85.770379][ T5425] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [pid 5432] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304) = 4194304 [pid 5432] munmap(0x7fdb6a513000, 4194304) = 0 [pid 5432] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 5432] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5432] close(3) = 0 [pid 5432] mkdir("./file0", 0777) = 0 [ 85.844131][ T5432] loop5: detected capacity change from 0 to 8192 [ 85.862498][ T5425] REISERFS (device loop3): using ordered data mode [pid 5432] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5431] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5078] <... umount2 resumed>) = 0 [pid 5078] umount2("./18/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5078] lstat("./18/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] umount2("./18/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5078] openat(AT_FDCWD, "./18/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5078] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [ 85.890227][ T5432] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 85.914170][ T5425] reiserfs: using flush barriers [pid 5078] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5078] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5078] close(4) = 0 [pid 5078] rmdir("./18/file0") = 0 [pid 5078] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5078] close(3) = 0 [pid 5078] rmdir("./18") = 0 [pid 5078] mkdir("./19", 0777) = 0 [pid 5078] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5078] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5078] close(3) = 0 [pid 5078] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5434 ./strace-static-x86_64: Process 5434 attached [pid 5434] set_robust_list(0x5555571745e0, 24) = 0 [pid 5434] chdir("./19") = 0 [pid 5434] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5434] setpgid(0, 0) = 0 [pid 5434] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5434] write(3, "1000", 4) = 4 [pid 5434] close(3) = 0 [pid 5434] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5434] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5434] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5434] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5434] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5435], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5435 [pid 5434] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 85.925168][ T5425] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 85.954051][ T5432] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [pid 5434] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5435 attached [pid 5435] set_robust_list(0x7fdb729339e0, 24 [pid 5427] <... write resumed>) = 4194304 [pid 5435] <... set_robust_list resumed>) = 0 [pid 5435] memfd_create("syzkaller", 0) = 3 [pid 5075] <... umount2 resumed>) = 0 [pid 5075] umount2("./18/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5435] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5427] munmap(0x7fdb6a513000, 4194304 [pid 5435] <... mmap resumed>) = 0x7fdb6a513000 [pid 5427] <... munmap resumed>) = 0 [pid 5427] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5427] ioctl(4, LOOP_SET_FD, 3 [pid 5075] lstat("./18/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] umount2("./18/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5075] openat(AT_FDCWD, "./18/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5075] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5075] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5075] close(4) = 0 [pid 5075] rmdir("./18/file0") = 0 [ 85.994902][ T5425] REISERFS (device loop3): checking transaction log (loop3) [ 86.019692][ T5432] REISERFS (device loop5): using ordered data mode [ 86.035189][ T5427] loop0: detected capacity change from 0 to 8192 [pid 5075] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5075] close(3) = 0 [pid 5075] rmdir("./18") = 0 [pid 5075] mkdir("./19", 0777) = 0 [pid 5075] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5427] <... ioctl resumed>) = 0 [pid 5075] <... openat resumed>) = 3 [pid 5427] close(3 [pid 5075] ioctl(3, LOOP_CLR_FD [pid 5427] <... close resumed>) = 0 [pid 5075] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5427] mkdir("./file0", 0777 [pid 5075] close(3 [pid 5427] <... mkdir resumed>) = 0 [pid 5075] <... close resumed>) = 0 [ 86.055634][ T5432] reiserfs: using flush barriers [pid 5427] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5435] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5431] <... write resumed>) = 4194304 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5431] munmap(0x7fdb6a513000, 4194304) = 0 [pid 5075] <... clone resumed>, child_tidptr=0x5555571745d0) = 5437 ./strace-static-x86_64: Process 5437 attached [ 86.095368][ T5432] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 86.114243][ T5427] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 86.129940][ T5427] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [pid 5435] <... write resumed>) = 4194304 [pid 5431] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5431] ioctl(4, LOOP_SET_FD, 3 [pid 5437] set_robust_list(0x5555571745e0, 24) = 0 [pid 5437] chdir("./19") = 0 [pid 5437] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5437] setpgid(0, 0) = 0 [pid 5437] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5437] write(3, "1000", 4) = 4 [pid 5437] close(3) = 0 [pid 5437] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5437] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5437] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5437] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5437] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5438], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5438 [pid 5437] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5437] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5438 attached [pid 5438] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5438] memfd_create("syzkaller", 0) = 3 [pid 5438] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [pid 5435] munmap(0x7fdb6a513000, 4194304) = 0 [pid 5435] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5431] <... ioctl resumed>) = 0 [pid 5435] ioctl(4, LOOP_SET_FD, 3 [pid 5431] close(3) = 0 [ 86.143780][ T5432] REISERFS (device loop5): checking transaction log (loop5) [ 86.153964][ T5425] REISERFS (device loop3): Using r5 hash to sort names [ 86.161229][ T5431] loop2: detected capacity change from 0 to 8192 [ 86.170807][ T5427] REISERFS (device loop0): using ordered data mode [ 86.180593][ T5435] loop4: detected capacity change from 0 to 8192 [pid 5431] mkdir("./file0", 0777) = 0 [pid 5431] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5435] <... ioctl resumed>) = 0 [pid 5425] <... mount resumed>) = 0 [pid 5435] close(3 [pid 5425] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5435] <... close resumed>) = 0 [pid 5425] <... openat resumed>) = 3 [pid 5435] mkdir("./file0", 0777 [pid 5425] chdir("./file0" [pid 5435] <... mkdir resumed>) = 0 [pid 5425] <... chdir resumed>) = 0 [pid 5425] ioctl(4, LOOP_CLR_FD [pid 5435] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5425] <... ioctl resumed>) = 0 [pid 5425] close(4) = 0 [pid 5425] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5424] <... futex resumed>) = 0 [pid 5425] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [ 86.190214][ T5425] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 86.200903][ T5427] reiserfs: using flush barriers [ 86.211364][ T5431] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 86.215309][ T5427] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5424] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5425] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5424] <... futex resumed>) = 0 [pid 5425] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5424] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5425] <... open resumed>) = 4 [pid 5425] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5425] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5424] <... futex resumed>) = 0 [pid 5424] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5425] <... futex resumed>) = 0 [pid 5424] <... futex resumed>) = 1 [pid 5425] ioctl(4, FS_IOC_GETVERSION [pid 5424] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5425] <... ioctl resumed>, 0x20000080) = 0 [pid 5425] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5424] <... futex resumed>) = 0 [pid 5425] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5424] exit_group(0 [pid 5425] <... futex resumed>) = ? [pid 5424] <... exit_group resumed>) = ? [pid 5425] +++ exited with 0 +++ [pid 5424] +++ exited with 0 +++ [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5424, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=18 /* 0.18 s */} --- [pid 5077] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5077] umount2("./19", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5438] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [ 86.265198][ T5427] REISERFS (device loop0): checking transaction log (loop0) [ 86.275944][ T5435] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 86.290140][ T5431] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 86.298338][ T5435] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [pid 5077] openat(AT_FDCWD, "./19", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5077] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5077] umount2("./19/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] lstat("./19/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] unlink("./19/binderfs") = 0 [pid 5438] <... write resumed>) = 4194304 [ 86.340239][ T5435] REISERFS (device loop4): using ordered data mode [ 86.355209][ T5435] reiserfs: using flush barriers [ 86.358168][ T5431] REISERFS (device loop2): using ordered data mode [ 86.367414][ T5435] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5077] umount2("./19/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5438] munmap(0x7fdb6a513000, 4194304) = 0 [pid 5438] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [ 86.388822][ T5431] reiserfs: using flush barriers [ 86.395421][ T5435] REISERFS (device loop4): checking transaction log (loop4) [ 86.397081][ T5431] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 86.411675][ T5438] loop1: detected capacity change from 0 to 8192 [ 86.432958][ T5432] REISERFS (device loop5): Using r5 hash to sort names [pid 5438] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5438] close(3) = 0 [pid 5438] mkdir("./file0", 0777) = 0 [pid 5438] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5432] <... mount resumed>) = 0 [pid 5432] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5432] chdir("./file0") = 0 [pid 5432] ioctl(4, LOOP_CLR_FD) = 0 [pid 5432] close(4) = 0 [pid 5432] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5428] <... futex resumed>) = 0 [pid 5428] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5428] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5432] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 5432] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5428] <... futex resumed>) = 0 [pid 5432] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5428] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5432] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5428] <... futex resumed>) = 0 [pid 5432] ioctl(4, FS_IOC_GETVERSION [pid 5428] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5432] <... ioctl resumed>, 0x20000080) = 0 [ 86.443387][ T5432] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 86.478440][ T5438] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5432] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5428] <... futex resumed>) = 0 [pid 5432] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5428] exit_group(0 [pid 5432] <... futex resumed>) = ? [pid 5428] <... exit_group resumed>) = ? [pid 5432] +++ exited with 0 +++ [pid 5428] +++ exited with 0 +++ [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5428, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- [pid 5079] umount2("./18", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./18", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5079] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5079] umount2("./18/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] lstat("./18/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] unlink("./18/binderfs") = 0 [ 86.531815][ T5438] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 86.549389][ T5431] REISERFS (device loop2): checking transaction log (loop2) [ 86.564430][ T5427] REISERFS (device loop0): Using r5 hash to sort names [ 86.575514][ T5438] REISERFS (device loop1): using ordered data mode [pid 5079] umount2("./18/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... umount2 resumed>) = 0 [pid 5077] umount2("./19/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5427] <... mount resumed>) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5427] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5077] lstat("./19/file0", [pid 5427] <... openat resumed>) = 3 [pid 5077] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5427] chdir("./file0" [pid 5077] umount2("./19/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5427] <... chdir resumed>) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5427] ioctl(4, LOOP_CLR_FD [pid 5077] openat(AT_FDCWD, "./19/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5427] <... ioctl resumed>) = 0 [pid 5077] <... openat resumed>) = 4 [pid 5427] close(4 [pid 5077] fstat(4, [pid 5427] <... close resumed>) = 0 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5427] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] getdents64(4, [pid 5427] <... futex resumed>) = 1 [pid 5077] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5427] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5077] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5077] close(4) = 0 [pid 5077] rmdir("./19/file0") = 0 [pid 5077] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5077] close(3) = 0 [pid 5077] rmdir("./19") = 0 [pid 5077] mkdir("./20", 0777) = 0 [pid 5077] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5077] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5077] close(3) = 0 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5442 ./strace-static-x86_64: Process 5442 attached [pid 5442] set_robust_list(0x5555571745e0, 24) = 0 [pid 5442] chdir("./20") = 0 [pid 5442] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5442] setpgid(0, 0) = 0 [pid 5442] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5442] write(3, "1000", 4) = 4 [pid 5442] close(3) = 0 [pid 5442] symlink("/dev/binderfs", "./binderfs" [pid 5426] <... futex resumed>) = 0 [ 86.597553][ T5427] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 86.608216][ T5438] reiserfs: using flush barriers [ 86.615312][ T5435] REISERFS (device loop4): Using r5 hash to sort names [pid 5426] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5427] <... futex resumed>) = 0 [pid 5426] <... futex resumed>) = 1 [pid 5427] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 5426] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5427] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5427] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5426] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5442] <... symlink resumed>) = 0 [pid 5442] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5442] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5442] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5442] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5443], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5443 [pid 5442] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5426] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5427] <... futex resumed>) = 0 [pid 5426] <... futex resumed>) = 1 [pid 5427] ioctl(4, FS_IOC_GETVERSION [pid 5426] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5427] <... ioctl resumed>, 0x20000080) = 0 [pid 5427] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5426] <... futex resumed>) = 0 [pid 5427] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5426] exit_group(0) = ? [pid 5427] <... futex resumed>) = ? [pid 5427] +++ exited with 0 +++ [pid 5426] +++ exited with 0 +++ [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5426, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=21 /* 0.21 s */} --- [pid 5442] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5074] umount2("./19", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] openat(AT_FDCWD, "./19", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5074] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5074] umount2("./19/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] lstat("./19/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5074] unlink("./19/binderfs") = 0 [pid 5074] umount2("./19/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5443 attached [pid 5443] set_robust_list(0x7fdb729339e0, 24) = 0 [ 86.632944][ T5438] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 86.666905][ T5435] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [pid 5443] memfd_create("syzkaller", 0) = 3 [pid 5443] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [ 86.693806][ T5438] REISERFS (device loop1): checking transaction log (loop1) [pid 5435] <... mount resumed>) = 0 [pid 5435] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5435] chdir("./file0") = 0 [pid 5435] ioctl(4, LOOP_CLR_FD) = 0 [pid 5435] close(4 [pid 5079] <... umount2 resumed>) = 0 [pid 5435] <... close resumed>) = 0 [pid 5079] umount2("./18/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] lstat("./18/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5435] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5434] <... futex resumed>) = 0 [pid 5435] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5434] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] umount2("./18/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./18/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5079] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5434] <... futex resumed>) = 0 [pid 5435] <... open resumed>) = 4 [pid 5434] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5435] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5434] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5434] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5435] <... futex resumed>) = 0 [pid 5434] <... futex resumed>) = 0 [pid 5434] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5435] ioctl(4, FS_IOC_GETVERSION, 0x20000080) = 0 [pid 5079] getdents64(4, [pid 5435] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5435] <... futex resumed>) = 1 [pid 5434] <... futex resumed>) = 0 [pid 5079] close(4 [pid 5435] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5434] exit_group(0 [pid 5079] <... close resumed>) = 0 [pid 5435] <... futex resumed>) = ? [pid 5434] <... exit_group resumed>) = ? [pid 5079] rmdir("./18/file0" [pid 5435] +++ exited with 0 +++ [pid 5079] <... rmdir resumed>) = 0 [pid 5434] +++ exited with 0 +++ [pid 5079] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5079] close(3 [pid 5078] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5434, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 5079] <... close resumed>) = 0 [pid 5078] umount2("./19", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] rmdir("./18") = 0 [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] mkdir("./19", 0777 [pid 5078] openat(AT_FDCWD, "./19", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] <... mkdir resumed>) = 0 [pid 5079] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5078] <... openat resumed>) = 3 [pid 5079] <... openat resumed>) = 3 [pid 5078] fstat(3, [pid 5079] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5078] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] close(3) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5078] getdents64(3, [pid 5079] <... clone resumed>, child_tidptr=0x5555571745d0) = 5444 [pid 5078] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5078] umount2("./19/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5078] lstat("./19/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5078] unlink("./19/binderfs") = 0 [pid 5078] umount2("./19/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5444 attached [pid 5444] set_robust_list(0x5555571745e0, 24) = 0 [pid 5444] chdir("./19") = 0 [pid 5444] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5443] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5444] <... prctl resumed>) = 0 [pid 5444] setpgid(0, 0) = 0 [pid 5444] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5444] write(3, "1000", 4) = 4 [pid 5444] close(3) = 0 [pid 5444] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5444] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5444] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5444] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5431] <... mount resumed>) = 0 [pid 5444] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5431] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5444] <... clone resumed>, parent_tid=[5445], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5445 [pid 5444] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5431] chdir("./file0" [pid 5444] <... futex resumed>) = 0 [pid 5431] <... chdir resumed>) = 0 [pid 5444] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5431] ioctl(4, LOOP_CLR_FD) = 0 [pid 5431] close(4) = 0 [pid 5431] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5431] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5429] <... futex resumed>) = 0 [pid 5429] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5431] <... futex resumed>) = 0 [pid 5429] <... futex resumed>) = 1 [ 86.875774][ T5431] REISERFS (device loop2): Using r5 hash to sort names [ 86.887916][ T5431] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 5431] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5429] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5445 attached [pid 5431] <... open resumed>) = 4 [pid 5445] set_robust_list(0x7fdb729339e0, 24 [pid 5431] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5445] <... set_robust_list resumed>) = 0 [pid 5431] <... futex resumed>) = 1 [pid 5429] <... futex resumed>) = 0 [pid 5074] <... umount2 resumed>) = 0 [pid 5431] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5429] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5431] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5429] <... futex resumed>) = 0 [pid 5431] ioctl(4, FS_IOC_GETVERSION [pid 5429] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5431] <... ioctl resumed>, 0x20000080) = 0 [pid 5074] umount2("./19/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5431] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5445] memfd_create("syzkaller", 0 [pid 5431] <... futex resumed>) = 1 [pid 5429] <... futex resumed>) = 0 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5445] <... memfd_create resumed>) = 3 [pid 5431] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5429] exit_group(0 [pid 5445] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5431] <... futex resumed>) = ? [pid 5429] <... exit_group resumed>) = ? [pid 5074] lstat("./19/file0", [pid 5431] +++ exited with 0 +++ [pid 5074] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] umount2("./19/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5429] +++ exited with 0 +++ [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5445] <... mmap resumed>) = 0x7fdb6a513000 [pid 5074] openat(AT_FDCWD, "./19/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5074] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5429, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=19 /* 0.19 s */} --- [pid 5074] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5074] getdents64(4, [pid 5076] umount2("./19", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] close(4 [pid 5076] openat(AT_FDCWD, "./19", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5074] <... close resumed>) = 0 [pid 5076] <... openat resumed>) = 3 [pid 5074] rmdir("./19/file0" [pid 5076] fstat(3, [pid 5074] <... rmdir resumed>) = 0 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] getdents64(3, [pid 5076] getdents64(3, [pid 5074] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5076] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5074] close(3 [pid 5076] umount2("./19/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] <... close resumed>) = 0 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] rmdir("./19" [pid 5076] lstat("./19/binderfs", [pid 5074] <... rmdir resumed>) = 0 [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5074] mkdir("./20", 0777 [pid 5076] unlink("./19/binderfs" [pid 5074] <... mkdir resumed>) = 0 [pid 5074] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5076] <... unlink resumed>) = 0 [pid 5074] <... openat resumed>) = 3 [pid 5076] umount2("./19/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5074] close(3) = 0 [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5446 ./strace-static-x86_64: Process 5446 attached [pid 5446] set_robust_list(0x5555571745e0, 24) = 0 [pid 5446] chdir("./20") = 0 [pid 5446] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5443] <... write resumed>) = 4194304 [pid 5446] setpgid(0, 0 [pid 5443] munmap(0x7fdb6a513000, 4194304 [pid 5446] <... setpgid resumed>) = 0 [pid 5443] <... munmap resumed>) = 0 [pid 5446] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5443] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5446] <... openat resumed>) = 3 [pid 5443] <... openat resumed>) = 4 [pid 5446] write(3, "1000", 4 [pid 5443] ioctl(4, LOOP_SET_FD, 3 [pid 5446] <... write resumed>) = 4 [pid 5446] close(3 [pid 5445] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5443] <... ioctl resumed>) = 0 [pid 5078] <... umount2 resumed>) = 0 [pid 5446] <... close resumed>) = 0 [pid 5443] close(3 [pid 5446] symlink("/dev/binderfs", "./binderfs" [pid 5443] <... close resumed>) = 0 [pid 5446] <... symlink resumed>) = 0 [pid 5443] mkdir("./file0", 0777 [pid 5446] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5443] <... mkdir resumed>) = 0 [pid 5078] umount2("./19/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5446] <... futex resumed>) = 0 [pid 5443] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5446] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5078] lstat("./19/file0", [pid 5446] <... mmap resumed>) = 0x7fdb72913000 [pid 5078] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5446] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5078] umount2("./19/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5446] <... mprotect resumed>) = 0 [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5446] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5078] openat(AT_FDCWD, "./19/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5446] <... clone resumed>, parent_tid=[5448], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5448 [pid 5446] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] fstat(4, [pid 5446] <... futex resumed>) = 0 [pid 5078] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5446] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5078] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5078] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [ 87.035254][ T5443] loop3: detected capacity change from 0 to 8192 [ 87.040022][ T5438] REISERFS (device loop1): Using r5 hash to sort names [ 87.063071][ T5438] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [pid 5078] close(4./strace-static-x86_64: Process 5448 attached [pid 5438] <... mount resumed>) = 0 [pid 5078] <... close resumed>) = 0 [pid 5076] <... umount2 resumed>) = 0 [pid 5448] set_robust_list(0x7fdb729339e0, 24 [pid 5438] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5078] rmdir("./19/file0" [pid 5076] umount2("./19/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5448] <... set_robust_list resumed>) = 0 [pid 5438] <... openat resumed>) = 3 [pid 5078] <... rmdir resumed>) = 0 [pid 5448] memfd_create("syzkaller", 0 [pid 5438] chdir("./file0" [pid 5078] getdents64(3, [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5448] <... memfd_create resumed>) = 3 [pid 5438] <... chdir resumed>) = 0 [pid 5078] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5076] lstat("./19/file0", [pid 5078] close(3 [pid 5448] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5438] ioctl(4, LOOP_CLR_FD [pid 5078] <... close resumed>) = 0 [pid 5076] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5448] <... mmap resumed>) = 0x7fdb6a513000 [pid 5438] <... ioctl resumed>) = 0 [pid 5078] rmdir("./19" [pid 5438] close(4 [pid 5078] <... rmdir resumed>) = 0 [ 87.076956][ T5443] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5076] umount2("./19/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5078] mkdir("./20", 0777 [pid 5438] <... close resumed>) = 0 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5078] <... mkdir resumed>) = 0 [pid 5438] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5076] openat(AT_FDCWD, "./19/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5078] <... openat resumed>) = 3 [pid 5438] <... futex resumed>) = 1 [pid 5437] <... futex resumed>) = 0 [pid 5078] ioctl(3, LOOP_CLR_FD [pid 5076] <... openat resumed>) = 4 [pid 5438] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5437] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5076] fstat(4, [pid 5078] close(3 [pid 5445] <... write resumed>) = 4194304 [pid 5438] <... open resumed>) = 4 [pid 5437] <... futex resumed>) = 0 [pid 5078] <... close resumed>) = 0 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5437] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5078] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] getdents64(4, [pid 5438] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5437] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5076] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5437] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] <... clone resumed>, child_tidptr=0x5555571745d0) = 5449 [pid 5076] getdents64(4, [pid 5437] <... futex resumed>) = 0 [pid 5076] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5437] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5076] close(4) = 0 [pid 5076] rmdir("./19/file0" [pid 5448] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5438] <... futex resumed>) = 1 [pid 5437] <... futex resumed>) = 0 [pid 5076] <... rmdir resumed>) = 0 [pid 5438] ioctl(4, FS_IOC_GETVERSION [pid 5437] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=41000000} [pid 5076] getdents64(3, [pid 5438] <... ioctl resumed>, 0x20000080) = 0 [pid 5076] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 5449 attached [pid 5438] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5076] close(3 [pid 5449] set_robust_list(0x5555571745e0, 24 [pid 5445] munmap(0x7fdb6a513000, 4194304 [pid 5438] <... futex resumed>) = 1 [pid 5437] <... futex resumed>) = 0 [pid 5076] <... close resumed>) = 0 [pid 5449] <... set_robust_list resumed>) = 0 [pid 5445] <... munmap resumed>) = 0 [pid 5438] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5437] exit_group(0 [pid 5076] rmdir("./19" [pid 5449] chdir("./20" [pid 5445] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5438] <... futex resumed>) = ? [pid 5437] <... exit_group resumed>) = ? [pid 5076] <... rmdir resumed>) = 0 [pid 5449] <... chdir resumed>) = 0 [pid 5445] <... openat resumed>) = 4 [pid 5438] +++ exited with 0 +++ [pid 5449] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5445] ioctl(4, LOOP_SET_FD, 3 [pid 5437] +++ exited with 0 +++ [ 87.133543][ T5443] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 87.142887][ T5443] REISERFS (device loop3): using ordered data mode [ 87.149663][ T5443] reiserfs: using flush barriers [ 87.157166][ T5443] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 87.173857][ T5443] REISERFS (device loop3): checking transaction log (loop3) [pid 5076] mkdir("./20", 0777 [pid 5449] <... prctl resumed>) = 0 [pid 5076] <... mkdir resumed>) = 0 [pid 5449] setpgid(0, 0 [pid 5076] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5437, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- [pid 5449] <... setpgid resumed>) = 0 [pid 5445] <... ioctl resumed>) = 0 [pid 5076] <... openat resumed>) = 3 [pid 5075] umount2("./19", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5449] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5445] close(3 [pid 5076] ioctl(3, LOOP_CLR_FD [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5449] <... openat resumed>) = 3 [pid 5445] <... close resumed>) = 0 [pid 5076] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5075] openat(AT_FDCWD, "./19", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5449] write(3, "1000", 4 [pid 5445] mkdir("./file0", 0777 [pid 5076] close(3 [pid 5075] <... openat resumed>) = 3 [pid 5449] <... write resumed>) = 4 [pid 5445] <... mkdir resumed>) = 0 [pid 5076] <... close resumed>) = 0 [pid 5075] fstat(3, [pid 5449] close(3 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5449] <... close resumed>) = 0 [pid 5075] getdents64(3, [pid 5449] symlink("/dev/binderfs", "./binderfs" [pid 5445] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5076] <... clone resumed>, child_tidptr=0x5555571745d0) = 5450 [pid 5075] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5449] <... symlink resumed>) = 0 [pid 5075] umount2("./19/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5449] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5450 attached [pid 5449] <... futex resumed>) = 0 [pid 5075] lstat("./19/binderfs", [pid 5450] set_robust_list(0x5555571745e0, 24 [pid 5449] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [ 87.208173][ T5445] loop5: detected capacity change from 0 to 8192 [ 87.247252][ T5443] REISERFS (device loop3): Using r5 hash to sort names [pid 5450] <... set_robust_list resumed>) = 0 [pid 5449] <... mmap resumed>) = 0x7fdb72913000 [pid 5075] unlink("./19/binderfs" [pid 5450] chdir("./20" [pid 5449] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5075] <... unlink resumed>) = 0 [pid 5450] <... chdir resumed>) = 0 [pid 5449] <... mprotect resumed>) = 0 [pid 5075] umount2("./19/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5450] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5449] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5450] <... prctl resumed>) = 0 [pid 5450] setpgid(0, 0 [pid 5449] <... clone resumed>, parent_tid=[5452], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5452 [pid 5450] <... setpgid resumed>) = 0 [pid 5449] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5450] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5449] <... futex resumed>) = 0 [pid 5450] <... openat resumed>) = 3 [pid 5449] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5450] write(3, "1000", 4) = 4 [pid 5450] close(3) = 0 [pid 5450] symlink("/dev/binderfs", "./binderfs"./strace-static-x86_64: Process 5452 attached ) = 0 [pid 5452] set_robust_list(0x7fdb729339e0, 24 [pid 5450] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5452] <... set_robust_list resumed>) = 0 [pid 5450] <... futex resumed>) = 0 [pid 5452] memfd_create("syzkaller", 0 [pid 5450] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5450] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5450] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5452] <... memfd_create resumed>) = 3 [pid 5452] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5450] <... clone resumed>, parent_tid=[5453], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5453 [pid 5452] <... mmap resumed>) = 0x7fdb6a513000 [pid 5450] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 87.264872][ T5445] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 87.279306][ T5443] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 87.296548][ T5445] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [pid 5450] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5443] <... mount resumed>) = 0 ./strace-static-x86_64: Process 5453 attached [pid 5453] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5453] memfd_create("syzkaller", 0 [pid 5443] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5448] <... write resumed>) = 4194304 [pid 5443] <... openat resumed>) = 3 [pid 5453] <... memfd_create resumed>) = 3 [pid 5453] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [pid 5452] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5448] munmap(0x7fdb6a513000, 4194304 [pid 5443] chdir("./file0" [pid 5448] <... munmap resumed>) = 0 [pid 5443] <... chdir resumed>) = 0 [pid 5443] ioctl(4, LOOP_CLR_FD) = 0 [ 87.314121][ T5445] REISERFS (device loop5): using ordered data mode [ 87.320720][ T5445] reiserfs: using flush barriers [ 87.328914][ T5445] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5443] close(4) = 0 [pid 5453] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5448] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5443] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5448] <... openat resumed>) = 4 [pid 5443] <... futex resumed>) = 1 [pid 5442] <... futex resumed>) = 0 [pid 5448] ioctl(4, LOOP_SET_FD, 3 [pid 5443] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5442] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5443] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5442] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5448] <... ioctl resumed>) = 0 [pid 5443] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 5443] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5442] <... futex resumed>) = 0 [pid 5442] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5442] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5443] ioctl(4, FS_IOC_GETVERSION, 0x20000080) = 0 [pid 5443] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5442] <... futex resumed>) = 0 [pid 5443] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5442] exit_group(0 [pid 5443] <... futex resumed>) = ? [pid 5442] <... exit_group resumed>) = ? [pid 5443] +++ exited with 0 +++ [pid 5442] +++ exited with 0 +++ [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5442, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- [pid 5077] umount2("./20", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5448] close(3) = 0 [pid 5448] mkdir("./file0", 0777) = 0 [pid 5077] openat(AT_FDCWD, "./20", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5077] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5448] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5077] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5077] umount2("./20/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] lstat("./20/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [ 87.364702][ T5445] REISERFS (device loop5): checking transaction log (loop5) [ 87.385690][ T5448] loop0: detected capacity change from 0 to 8192 [pid 5452] <... write resumed>) = 4194304 [pid 5077] unlink("./20/binderfs" [pid 5452] munmap(0x7fdb6a513000, 4194304 [pid 5077] <... unlink resumed>) = 0 [pid 5452] <... munmap resumed>) = 0 [pid 5077] umount2("./20/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5452] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5075] <... umount2 resumed>) = 0 [pid 5452] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5075] umount2("./19/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5452] close(3) = 0 [ 87.436321][ T5448] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 87.465817][ T5448] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 87.472715][ T5452] loop4: detected capacity change from 0 to 8192 [pid 5452] mkdir("./file0", 0777) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5452] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5075] lstat("./19/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] umount2("./19/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5075] openat(AT_FDCWD, "./19/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5075] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5075] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5075] close(4) = 0 [pid 5075] rmdir("./19/file0") = 0 [pid 5075] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5075] close(3) = 0 [pid 5075] rmdir("./19") = 0 [pid 5075] mkdir("./20", 0777) = 0 [pid 5075] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5075] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5075] close(3) = 0 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5456 [ 87.476870][ T5448] REISERFS (device loop0): using ordered data mode [ 87.488458][ T5448] reiserfs: using flush barriers [ 87.494812][ T5448] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 87.512998][ T5452] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 ./strace-static-x86_64: Process 5456 attached [pid 5456] set_robust_list(0x5555571745e0, 24) = 0 [pid 5456] chdir("./20") = 0 [pid 5456] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5456] setpgid(0, 0) = 0 [pid 5456] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5456] write(3, "1000", 4) = 4 [pid 5456] close(3) = 0 [ 87.550042][ T5452] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 87.560699][ T5448] REISERFS (device loop0): checking transaction log (loop0) [pid 5456] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5456] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5456] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5456] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5456] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5453] <... write resumed>) = 4194304 [pid 5456] <... clone resumed>, parent_tid=[5457], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5457 [pid 5456] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5456] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5453] munmap(0x7fdb6a513000, 4194304) = 0 [pid 5453] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5453] ioctl(4, LOOP_SET_FD, 3./strace-static-x86_64: Process 5457 attached [pid 5457] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5457] memfd_create("syzkaller", 0) = 3 [pid 5457] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [ 87.631732][ T5452] REISERFS (device loop4): using ordered data mode [ 87.640106][ T5453] loop2: detected capacity change from 0 to 8192 [ 87.640487][ T5448] REISERFS (device loop0): Using r5 hash to sort names [pid 5453] <... ioctl resumed>) = 0 [pid 5448] <... mount resumed>) = 0 [pid 5077] <... umount2 resumed>) = 0 [pid 5453] close(3 [pid 5448] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5077] umount2("./20/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5448] <... openat resumed>) = 3 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5453] <... close resumed>) = 0 [pid 5077] lstat("./20/file0", [pid 5453] mkdir("./file0", 0777 [pid 5448] chdir("./file0" [pid 5453] <... mkdir resumed>) = 0 [pid 5077] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5448] <... chdir resumed>) = 0 [pid 5448] ioctl(4, LOOP_CLR_FD [pid 5077] umount2("./20/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5453] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5448] <... ioctl resumed>) = 0 [pid 5448] close(4 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] openat(AT_FDCWD, "./20/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5448] <... close resumed>) = 0 [pid 5077] <... openat resumed>) = 4 [pid 5448] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] fstat(4, [pid 5448] <... futex resumed>) = 1 [pid 5446] <... futex resumed>) = 0 [ 87.677979][ T5448] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 87.679150][ T5452] reiserfs: using flush barriers [pid 5448] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5446] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5448] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5446] <... futex resumed>) = 0 [pid 5446] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5077] getdents64(4, [pid 5448] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5077] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5448] <... open resumed>) = 4 [pid 5077] getdents64(4, [pid 5448] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5448] <... futex resumed>) = 1 [pid 5446] <... futex resumed>) = 0 [pid 5077] close(4 [pid 5448] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5446] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] <... close resumed>) = 0 [pid 5448] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5448] ioctl(4, FS_IOC_GETVERSION [pid 5446] <... futex resumed>) = 0 [pid 5077] rmdir("./20/file0" [pid 5448] <... ioctl resumed>, 0x20000080) = 0 [pid 5077] <... rmdir resumed>) = 0 [ 87.718963][ T5445] REISERFS (device loop5): Using r5 hash to sort names [ 87.719189][ T5453] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 87.727621][ T5452] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 87.740830][ T5445] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 5446] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5448] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5445] <... mount resumed>) = 0 [pid 5077] getdents64(3, [pid 5448] <... futex resumed>) = 1 [pid 5445] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5077] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5448] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5445] <... openat resumed>) = 3 [pid 5445] chdir("./file0" [pid 5077] close(3 [pid 5445] <... chdir resumed>) = 0 [pid 5446] <... futex resumed>) = 0 [pid 5445] ioctl(4, LOOP_CLR_FD [pid 5077] <... close resumed>) = 0 [pid 5446] exit_group(0 [pid 5445] <... ioctl resumed>) = 0 [pid 5077] rmdir("./20" [pid 5445] close(4 [pid 5446] <... exit_group resumed>) = ? [pid 5077] <... rmdir resumed>) = 0 [pid 5448] <... futex resumed>) = ? [pid 5445] <... close resumed>) = 0 [pid 5077] mkdir("./21", 0777 [pid 5448] +++ exited with 0 +++ [pid 5446] +++ exited with 0 +++ [pid 5445] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] <... mkdir resumed>) = 0 [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5446, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=19 /* 0.19 s */} --- [pid 5445] <... futex resumed>) = 1 [pid 5444] <... futex resumed>) = 0 [pid 5077] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5445] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5444] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] <... openat resumed>) = 3 [pid 5445] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5444] <... futex resumed>) = 0 [pid 5077] ioctl(3, LOOP_CLR_FD [pid 5445] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5444] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5077] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5074] umount2("./20", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5445] <... open resumed>) = 4 [pid 5077] close(3 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5445] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] <... close resumed>) = 0 [pid 5445] <... futex resumed>) = 1 [pid 5444] <... futex resumed>) = 0 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5074] openat(AT_FDCWD, "./20", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5445] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5444] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5445] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5444] <... futex resumed>) = 0 [pid 5077] <... clone resumed>, child_tidptr=0x5555571745d0) = 5459 [pid 5074] <... openat resumed>) = 3 [pid 5445] ioctl(4, FS_IOC_GETVERSION [pid 5444] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5074] fstat(3, ./strace-static-x86_64: Process 5459 attached [pid 5445] <... ioctl resumed>, 0x20000080) = 0 [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5445] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5074] getdents64(3, [pid 5445] <... futex resumed>) = 1 [pid 5444] <... futex resumed>) = 0 [ 87.766249][ T5452] REISERFS (device loop4): checking transaction log (loop4) [pid 5459] set_robust_list(0x5555571745e0, 24 [pid 5457] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5445] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5444] exit_group(0 [pid 5074] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5459] <... set_robust_list resumed>) = 0 [pid 5445] <... futex resumed>) = ? [pid 5444] <... exit_group resumed>) = ? [pid 5074] umount2("./20/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5459] chdir("./21" [pid 5445] +++ exited with 0 +++ [pid 5459] <... chdir resumed>) = 0 [pid 5444] +++ exited with 0 +++ [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5459] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5074] lstat("./20/binderfs", [pid 5459] <... prctl resumed>) = 0 [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5444, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 5074] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5459] setpgid(0, 0 [pid 5079] restart_syscall(<... resuming interrupted clone ...> [pid 5074] unlink("./20/binderfs" [pid 5459] <... setpgid resumed>) = 0 [pid 5079] <... restart_syscall resumed>) = 0 [pid 5074] <... unlink resumed>) = 0 [pid 5459] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5074] umount2("./20/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5459] <... openat resumed>) = 3 [pid 5079] umount2("./19", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5459] write(3, "1000", 4 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5459] <... write resumed>) = 4 [pid 5079] openat(AT_FDCWD, "./19", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5459] close(3 [pid 5079] <... openat resumed>) = 3 [pid 5459] <... close resumed>) = 0 [pid 5079] fstat(3, [pid 5459] symlink("/dev/binderfs", "./binderfs" [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5459] <... symlink resumed>) = 0 [pid 5079] getdents64(3, [pid 5459] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5459] <... futex resumed>) = 0 [pid 5079] umount2("./19/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5459] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5459] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5079] lstat("./19/binderfs", [pid 5459] <... mprotect resumed>) = 0 [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5459] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5079] unlink("./19/binderfs" [pid 5459] <... clone resumed>, parent_tid=[5460], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5460 [pid 5079] <... unlink resumed>) = 0 [pid 5459] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5079] umount2("./19/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5459] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5460 attached [ 87.798628][ T5453] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 87.828147][ T5453] REISERFS (device loop2): using ordered data mode [ 87.843526][ T5453] reiserfs: using flush barriers [pid 5460] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5460] memfd_create("syzkaller", 0) = 3 [pid 5460] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [ 87.857932][ T5453] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 87.913798][ T5452] REISERFS (device loop4): Using r5 hash to sort names [ 87.921034][ T5452] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 87.930351][ T5453] REISERFS (device loop2): checking transaction log (loop2) [pid 5460] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5452] <... mount resumed>) = 0 [pid 5452] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5452] chdir("./file0") = 0 [pid 5452] ioctl(4, LOOP_CLR_FD) = 0 [pid 5457] <... write resumed>) = 4194304 [pid 5452] close(4 [pid 5457] munmap(0x7fdb6a513000, 4194304 [pid 5452] <... close resumed>) = 0 [pid 5457] <... munmap resumed>) = 0 [pid 5452] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5457] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5452] <... futex resumed>) = 1 [pid 5457] <... openat resumed>) = 4 [pid 5452] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5449] <... futex resumed>) = 0 [pid 5457] ioctl(4, LOOP_SET_FD, 3 [pid 5449] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5452] <... futex resumed>) = 0 [pid 5449] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5452] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 5452] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5452] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5449] <... futex resumed>) = 0 [pid 5457] <... ioctl resumed>) = 0 [pid 5449] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5457] close(3 [pid 5449] <... futex resumed>) = 1 [pid 5452] <... futex resumed>) = 0 [pid 5452] ioctl(4, FS_IOC_GETVERSION [pid 5449] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5452] <... ioctl resumed>, 0x20000080) = 0 [pid 5452] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5449] <... futex resumed>) = 0 [pid 5452] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5460] <... write resumed>) = 4194304 [pid 5457] <... close resumed>) = 0 [pid 5449] exit_group(0 [pid 5460] munmap(0x7fdb6a513000, 4194304 [pid 5457] mkdir("./file0", 0777 [pid 5452] <... futex resumed>) = ? [pid 5449] <... exit_group resumed>) = ? [pid 5460] <... munmap resumed>) = 0 [pid 5457] <... mkdir resumed>) = 0 [pid 5452] +++ exited with 0 +++ [pid 5449] +++ exited with 0 +++ [pid 5460] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5457] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5078] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5449, si_uid=0, si_status=0, si_utime=0, si_stime=21 /* 0.21 s */} --- [pid 5460] <... openat resumed>) = 4 [pid 5460] ioctl(4, LOOP_SET_FD, 3 [pid 5078] umount2("./20", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5078] openat(AT_FDCWD, "./20", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5078] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5078] umount2("./20/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 88.018357][ T5457] loop1: detected capacity change from 0 to 8192 [pid 5078] lstat("./20/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5078] unlink("./20/binderfs" [pid 5079] <... umount2 resumed>) = 0 [pid 5078] <... unlink resumed>) = 0 [pid 5078] umount2("./20/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5460] <... ioctl resumed>) = 0 [pid 5460] close(3) = 0 [pid 5460] mkdir("./file0", 0777 [pid 5079] umount2("./19/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5460] <... mkdir resumed>) = 0 [pid 5460] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5079] lstat("./19/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] umount2("./19/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] <... umount2 resumed>) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 88.081928][ T5460] loop3: detected capacity change from 0 to 8192 [ 88.088443][ T5457] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 88.117236][ T5457] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [pid 5079] openat(AT_FDCWD, "./19/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5074] umount2("./20/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... openat resumed>) = 4 [pid 5079] fstat(4, [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 88.128452][ T5457] REISERFS (device loop1): using ordered data mode [ 88.135857][ T5457] reiserfs: using flush barriers [ 88.138610][ T5460] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 88.150385][ T5457] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 88.160777][ T5453] REISERFS (device loop2): Using r5 hash to sort names [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] lstat("./20/file0", [pid 5079] getdents64(4, [pid 5074] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5074] umount2("./20/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] getdents64(4, [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5074] openat(AT_FDCWD, "./20/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] close(4 [pid 5074] <... openat resumed>) = 4 [pid 5079] <... close resumed>) = 0 [pid 5074] fstat(4, [pid 5079] rmdir("./19/file0" [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] <... rmdir resumed>) = 0 [pid 5074] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5079] getdents64(3, [pid 5074] getdents64(4, [pid 5079] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5074] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5079] close(3 [pid 5074] close(4 [pid 5079] <... close resumed>) = 0 [pid 5074] <... close resumed>) = 0 [pid 5079] rmdir("./19" [pid 5074] rmdir("./20/file0" [pid 5079] <... rmdir resumed>) = 0 [pid 5074] <... rmdir resumed>) = 0 [pid 5079] mkdir("./20", 0777 [pid 5074] getdents64(3, [pid 5079] <... mkdir resumed>) = 0 [ 88.178331][ T5460] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [pid 5074] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5079] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5078] <... umount2 resumed>) = 0 [pid 5078] umount2("./20/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] close(3 [pid 5079] <... openat resumed>) = 3 [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5078] lstat("./20/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] <... close resumed>) = 0 [pid 5079] ioctl(3, LOOP_CLR_FD [pid 5078] umount2("./20/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5078] openat(AT_FDCWD, "./20/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5074] rmdir("./20" [pid 5079] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5078] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5079] close(3 [pid 5074] <... rmdir resumed>) = 0 [pid 5079] <... close resumed>) = 0 [pid 5078] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5078] close(4) = 0 [pid 5078] rmdir("./20/file0") = 0 [pid 5078] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5078] close(3) = 0 [pid 5078] rmdir("./20" [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5078] <... rmdir resumed>) = 0 [pid 5074] mkdir("./21", 0777 [pid 5078] mkdir("./21", 0777) = 0 [pid 5078] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5078] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5078] close(3) = 0 [pid 5078] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] <... clone resumed>, child_tidptr=0x5555571745d0) = 5463 [pid 5074] <... mkdir resumed>) = 0 [pid 5074] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5078] <... clone resumed>, child_tidptr=0x5555571745d0) = 5464 [pid 5453] <... mount resumed>) = 0 [pid 5074] <... openat resumed>) = 3 [pid 5453] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5453] chdir("./file0") = 0 [pid 5453] ioctl(4, LOOP_CLR_FD) = 0 [pid 5453] close(4) = 0 [pid 5453] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5450] <... futex resumed>) = 0 [pid 5453] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5450] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5453] <... open resumed>) = 4 [pid 5450] <... futex resumed>) = 0 ./strace-static-x86_64: Process 5463 attached [pid 5450] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5463] set_robust_list(0x5555571745e0, 24 [pid 5453] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5450] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5074] ioctl(3, LOOP_CLR_FD [pid 5463] <... set_robust_list resumed>) = 0 [pid 5453] <... futex resumed>) = 0 [pid 5450] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 5464 attached [pid 5463] chdir("./20" [pid 5453] ioctl(4, FS_IOC_GETVERSION [pid 5450] <... futex resumed>) = 0 [pid 5074] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5464] set_robust_list(0x5555571745e0, 24 [pid 5463] <... chdir resumed>) = 0 [pid 5453] <... ioctl resumed>, 0x20000080) = 0 [pid 5450] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5074] close(3 [pid 5464] <... set_robust_list resumed>) = 0 [pid 5463] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5453] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5464] chdir("./21" [pid 5463] <... prctl resumed>) = 0 [ 88.209836][ T5457] REISERFS (device loop1): checking transaction log (loop1) [ 88.214789][ T5453] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 5453] <... futex resumed>) = 1 [pid 5450] <... futex resumed>) = 0 [pid 5074] <... close resumed>) = 0 [pid 5464] <... chdir resumed>) = 0 [pid 5463] setpgid(0, 0 [pid 5453] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5450] exit_group(0 [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5464] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5463] <... setpgid resumed>) = 0 [pid 5453] <... futex resumed>) = ? [pid 5450] <... exit_group resumed>) = ? [pid 5464] <... prctl resumed>) = 0 [pid 5463] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5453] +++ exited with 0 +++ [pid 5450] +++ exited with 0 +++ [pid 5464] setpgid(0, 0 [pid 5463] <... openat resumed>) = 3 [pid 5464] <... setpgid resumed>) = 0 [pid 5463] write(3, "1000", 4 [pid 5464] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5463] <... write resumed>) = 4 [pid 5464] <... openat resumed>) = 3 [pid 5463] close(3 [pid 5464] write(3, "1000", 4 [pid 5463] <... close resumed>) = 0 [pid 5464] <... write resumed>) = 4 [pid 5463] symlink("/dev/binderfs", "./binderfs" [pid 5464] close(3 [pid 5463] <... symlink resumed>) = 0 [pid 5464] <... close resumed>) = 0 [pid 5463] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5464] symlink("/dev/binderfs", "./binderfs" [pid 5463] <... futex resumed>) = 0 [pid 5464] <... symlink resumed>) = 0 [pid 5463] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5464] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5463] <... mmap resumed>) = 0x7fdb72913000 [pid 5464] <... futex resumed>) = 0 [pid 5463] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5464] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5463] <... mprotect resumed>) = 0 [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5450, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} --- [pid 5464] <... mmap resumed>) = 0x7fdb72913000 [pid 5463] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5076] umount2("./20", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] <... clone resumed>, child_tidptr=0x5555571745d0) = 5465 [pid 5464] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5464] <... mprotect resumed>) = 0 [pid 5463] <... clone resumed>, parent_tid=[5466], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5466 [pid 5464] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5463] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5076] openat(AT_FDCWD, "./20", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY./strace-static-x86_64: Process 5465 attached [pid 5463] <... futex resumed>) = 0 [pid 5076] <... openat resumed>) = 3 [pid 5465] set_robust_list(0x5555571745e0, 24 [pid 5464] <... clone resumed>, parent_tid=[5467], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5467 [pid 5463] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5076] fstat(3, [pid 5465] <... set_robust_list resumed>) = 0 [pid 5464] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5465] chdir("./21" [pid 5464] <... futex resumed>) = 0 [pid 5076] getdents64(3, [pid 5465] <... chdir resumed>) = 0 [pid 5464] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5466 attached [pid 5465] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5076] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5076] umount2("./20/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5076] lstat("./20/binderfs", ./strace-static-x86_64: Process 5467 attached [pid 5466] set_robust_list(0x7fdb729339e0, 24 [pid 5465] <... prctl resumed>) = 0 [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5467] set_robust_list(0x7fdb729339e0, 24 [pid 5466] <... set_robust_list resumed>) = 0 [pid 5465] setpgid(0, 0 [pid 5076] unlink("./20/binderfs" [pid 5467] <... set_robust_list resumed>) = 0 [pid 5466] memfd_create("syzkaller", 0 [pid 5465] <... setpgid resumed>) = 0 [pid 5467] memfd_create("syzkaller", 0 [pid 5466] <... memfd_create resumed>) = 3 [pid 5465] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5076] <... unlink resumed>) = 0 [pid 5467] <... memfd_create resumed>) = 3 [pid 5466] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5465] <... openat resumed>) = 3 [pid 5076] umount2("./20/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5467] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5466] <... mmap resumed>) = 0x7fdb6a513000 [pid 5465] write(3, "1000", 4 [pid 5467] <... mmap resumed>) = 0x7fdb6a513000 [pid 5465] <... write resumed>) = 4 [pid 5465] close(3) = 0 [pid 5465] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5465] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5465] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5465] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5465] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5468], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5468 [pid 5465] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5465] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5468 attached [pid 5468] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5468] memfd_create("syzkaller", 0) = 3 [pid 5468] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [ 88.250247][ T5460] REISERFS (device loop3): using ordered data mode [ 88.307844][ T5460] reiserfs: using flush barriers [pid 5466] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [ 88.342497][ T5460] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5467] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [ 88.413747][ T5460] REISERFS (device loop3): checking transaction log (loop3) [pid 5468] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5466] <... write resumed>) = 4194304 [pid 5076] <... umount2 resumed>) = 0 [pid 5076] umount2("./20/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5076] lstat("./20/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] umount2("./20/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5076] openat(AT_FDCWD, "./20/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5076] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5076] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5076] close(4) = 0 [pid 5076] rmdir("./20/file0") = 0 [pid 5076] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5076] close(3) = 0 [pid 5076] rmdir("./20") = 0 [pid 5076] mkdir("./21", 0777 [pid 5466] munmap(0x7fdb6a513000, 4194304 [pid 5076] <... mkdir resumed>) = 0 [pid 5076] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5466] <... munmap resumed>) = 0 [pid 5076] <... openat resumed>) = 3 [pid 5076] ioctl(3, LOOP_CLR_FD [pid 5466] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 5466] ioctl(4, LOOP_SET_FD, 3 [pid 5076] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5466] <... ioctl resumed>) = 0 [pid 5076] close(3) = 0 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5469 ./strace-static-x86_64: Process 5469 attached [pid 5469] set_robust_list(0x5555571745e0, 24 [pid 5468] <... write resumed>) = 4194304 [pid 5467] <... write resumed>) = 4194304 [pid 5466] close(3 [pid 5469] <... set_robust_list resumed>) = 0 [pid 5468] munmap(0x7fdb6a513000, 4194304 [pid 5467] munmap(0x7fdb6a513000, 4194304 [pid 5466] <... close resumed>) = 0 [pid 5469] chdir("./21" [pid 5468] <... munmap resumed>) = 0 [pid 5467] <... munmap resumed>) = 0 [pid 5466] mkdir("./file0", 0777 [pid 5469] <... chdir resumed>) = 0 [pid 5468] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5467] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5466] <... mkdir resumed>) = 0 [pid 5469] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5468] <... openat resumed>) = 4 [pid 5467] <... openat resumed>) = 4 [pid 5466] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5469] <... prctl resumed>) = 0 [pid 5468] ioctl(4, LOOP_SET_FD, 3 [ 88.546612][ T5466] loop5: detected capacity change from 0 to 8192 [ 88.580657][ T5457] REISERFS (device loop1): Using r5 hash to sort names [pid 5467] ioctl(4, LOOP_SET_FD, 3 [pid 5469] setpgid(0, 0) = 0 [pid 5469] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5469] write(3, "1000", 4) = 4 [pid 5469] close(3) = 0 [pid 5469] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5469] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5469] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5469] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5469] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5471], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5471 [pid 5469] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5469] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5467] <... ioctl resumed>) = 0 [pid 5467] close(3) = 0 [pid 5468] <... ioctl resumed>) = 0 [pid 5467] mkdir("./file0", 0777 [pid 5468] close(3) = 0 [pid 5468] mkdir("./file0", 0777) = 0 [pid 5467] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 5471 attached [pid 5471] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5468] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5467] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5471] memfd_create("syzkaller", 0) = 3 [pid 5471] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [ 88.591849][ T5468] loop0: detected capacity change from 0 to 8192 [ 88.598829][ T5467] loop4: detected capacity change from 0 to 8192 [ 88.598860][ T5457] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 88.616338][ T5466] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5457] <... mount resumed>) = 0 [pid 5457] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5457] chdir("./file0") = 0 [pid 5457] ioctl(4, LOOP_CLR_FD) = 0 [ 88.644844][ T5467] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 88.647043][ T5466] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 88.658959][ T5468] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5457] close(4 [pid 5471] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5457] <... close resumed>) = 0 [pid 5457] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5456] <... futex resumed>) = 0 [pid 5457] <... futex resumed>) = 1 [pid 5456] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5456] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5457] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 5457] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5456] <... futex resumed>) = 0 [pid 5456] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5456] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5457] ioctl(4, FS_IOC_GETVERSION, 0x20000080) = 0 [pid 5457] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5456] <... futex resumed>) = 0 [pid 5457] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5456] exit_group(0) = ? [pid 5457] <... futex resumed>) = ? [pid 5457] +++ exited with 0 +++ [pid 5456] +++ exited with 0 +++ [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5456, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=18 /* 0.18 s */} --- [pid 5075] umount2("./20", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5471] <... write resumed>) = 4194304 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5471] munmap(0x7fdb6a513000, 4194304 [pid 5075] openat(AT_FDCWD, "./20", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5471] <... munmap resumed>) = 0 [pid 5075] <... openat resumed>) = 3 [pid 5075] fstat(3, [pid 5471] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] getdents64(3, [pid 5471] <... openat resumed>) = 4 [pid 5075] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [ 88.696183][ T5460] REISERFS (device loop3): Using r5 hash to sort names [ 88.735581][ T5460] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [pid 5471] ioctl(4, LOOP_SET_FD, 3 [pid 5075] umount2("./20/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5471] <... ioctl resumed>) = 0 [pid 5471] close(3) = 0 [pid 5471] mkdir("./file0", 0777) = 0 [pid 5471] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 88.769113][ T5471] loop2: detected capacity change from 0 to 8192 [ 88.770374][ T5466] REISERFS (device loop5): using ordered data mode [ 88.779821][ T5467] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 88.791610][ T5471] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 88.791634][ T5471] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [pid 5460] <... mount resumed>) = 0 [pid 5075] lstat("./20/binderfs", [pid 5460] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5460] <... openat resumed>) = 3 [ 88.805497][ T5467] REISERFS (device loop4): using ordered data mode [ 88.820597][ T5468] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 88.820718][ T5468] REISERFS (device loop0): using ordered data mode [ 88.821313][ T5467] reiserfs: using flush barriers [ 88.832548][ T5466] reiserfs: using flush barriers [ 88.838865][ T5471] REISERFS (device loop2): using ordered data mode [ 88.843453][ T5467] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5075] unlink("./20/binderfs" [pid 5460] chdir("./file0" [pid 5075] <... unlink resumed>) = 0 [pid 5460] <... chdir resumed>) = 0 [ 88.847645][ T5471] reiserfs: using flush barriers [ 88.855053][ T5468] reiserfs: using flush barriers [ 88.873233][ T5467] REISERFS (device loop4): checking transaction log (loop4) [ 88.876498][ T5471] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 88.886694][ T5466] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5075] umount2("./20/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5460] ioctl(4, LOOP_CLR_FD) = 0 [pid 5460] close(4) = 0 [pid 5460] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5459] <... futex resumed>) = 0 [pid 5459] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5459] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5460] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 5460] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5459] <... futex resumed>) = 0 [pid 5460] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5459] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5460] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5459] <... futex resumed>) = 0 [pid 5460] ioctl(4, FS_IOC_GETVERSION [pid 5459] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5460] <... ioctl resumed>, 0x20000080) = 0 [pid 5460] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5459] <... futex resumed>) = 0 [pid 5460] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5459] exit_group(0 [pid 5460] <... futex resumed>) = ? [pid 5459] <... exit_group resumed>) = ? [pid 5460] +++ exited with 0 +++ [pid 5459] +++ exited with 0 +++ [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5459, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- [pid 5077] umount2("./21", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] openat(AT_FDCWD, "./21", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5077] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5077] umount2("./21/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] lstat("./21/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] unlink("./21/binderfs") = 0 [ 88.899980][ T5468] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 88.905031][ T5466] REISERFS (device loop5): checking transaction log (loop5) [pid 5077] umount2("./21/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5077] umount2("./21/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] lstat("./21/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] umount2("./21/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] openat(AT_FDCWD, "./21/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5077] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5077] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5077] close(4) = 0 [pid 5077] rmdir("./21/file0") = 0 [pid 5077] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5077] close(3) = 0 [pid 5077] rmdir("./21") = 0 [pid 5077] mkdir("./22", 0777) = 0 [ 88.981683][ T5471] REISERFS (device loop2): checking transaction log (loop2) [pid 5077] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5077] ioctl(3, LOOP_CLR_FD) = 0 [pid 5077] close(3) = 0 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5475 ./strace-static-x86_64: Process 5475 attached [pid 5475] set_robust_list(0x5555571745e0, 24) = 0 [pid 5475] chdir("./22") = 0 [pid 5475] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5475] setpgid(0, 0) = 0 [pid 5475] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5475] write(3, "1000", 4) = 4 [pid 5475] close(3) = 0 [pid 5475] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5475] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5475] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5475] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5475] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5476], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5476 [pid 5475] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5475] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5476 attached [pid 5476] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5476] memfd_create("syzkaller", 0) = 3 [pid 5476] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [ 89.091044][ T5468] REISERFS (device loop0): checking transaction log (loop0) [pid 5075] <... umount2 resumed>) = 0 [pid 5075] umount2("./20/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5075] lstat("./20/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] umount2("./20/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5075] openat(AT_FDCWD, "./20/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5075] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5075] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5075] close(4) = 0 [ 89.197316][ T5466] REISERFS (device loop5): Using r5 hash to sort names [ 89.198212][ T5467] REISERFS (device loop4): Using r5 hash to sort names [ 89.209029][ T5466] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 5075] rmdir("./20/file0") = 0 [pid 5476] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5075] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5075] close(3) = 0 [pid 5075] rmdir("./20") = 0 [pid 5075] mkdir("./21", 0777) = 0 [pid 5075] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5075] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5075] close(3) = 0 [ 89.239962][ T5467] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5466] <... mount resumed>) = 0 [pid 5466] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5075] <... clone resumed>, child_tidptr=0x5555571745d0) = 5477 [pid 5466] chdir("./file0") = 0 ./strace-static-x86_64: Process 5477 attached [pid 5467] <... mount resumed>) = 0 [pid 5467] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5466] ioctl(4, LOOP_CLR_FD [pid 5477] set_robust_list(0x5555571745e0, 24 [pid 5467] <... openat resumed>) = 3 [pid 5466] <... ioctl resumed>) = 0 [pid 5477] <... set_robust_list resumed>) = 0 [pid 5467] chdir("./file0" [pid 5466] close(4 [pid 5467] <... chdir resumed>) = 0 [pid 5467] ioctl(4, LOOP_CLR_FD [pid 5477] chdir("./21" [pid 5467] <... ioctl resumed>) = 0 [pid 5466] <... close resumed>) = 0 [pid 5467] close(4 [pid 5477] <... chdir resumed>) = 0 [pid 5467] <... close resumed>) = 0 [pid 5466] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5467] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5466] <... futex resumed>) = 1 [pid 5477] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5463] <... futex resumed>) = 0 [pid 5477] <... prctl resumed>) = 0 [pid 5467] <... futex resumed>) = 1 [pid 5466] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5464] <... futex resumed>) = 0 [pid 5463] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5467] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5464] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5463] <... futex resumed>) = 0 [pid 5477] setpgid(0, 0 [pid 5467] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5464] <... futex resumed>) = 0 [pid 5463] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5467] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5466] <... open resumed>) = 4 [pid 5464] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5477] <... setpgid resumed>) = 0 [pid 5467] <... open resumed>) = 4 [pid 5466] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5477] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5467] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5466] <... futex resumed>) = 1 [pid 5463] <... futex resumed>) = 0 [pid 5467] <... futex resumed>) = 1 [pid 5464] <... futex resumed>) = 0 [pid 5463] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5477] <... openat resumed>) = 3 [ 89.284656][ T5471] REISERFS (device loop2): Using r5 hash to sort names [ 89.291960][ T5471] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 5467] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5466] ioctl(4, FS_IOC_GETVERSION [pid 5464] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5463] <... futex resumed>) = 0 [pid 5477] write(3, "1000", 4 [pid 5467] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5464] <... futex resumed>) = 0 [pid 5463] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5467] ioctl(4, FS_IOC_GETVERSION [pid 5464] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5467] <... ioctl resumed>, 0x20000080) = 0 [pid 5467] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5464] <... futex resumed>) = 0 [pid 5467] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5464] exit_group(0 [pid 5467] <... futex resumed>) = ? [pid 5464] <... exit_group resumed>) = ? [pid 5467] +++ exited with 0 +++ [pid 5464] +++ exited with 0 +++ [pid 5477] <... write resumed>) = 4 [pid 5466] <... ioctl resumed>, 0x20000080) = 0 [pid 5078] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5464, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=23 /* 0.23 s */} --- [pid 5477] close(3) = 0 [pid 5466] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5477] symlink("/dev/binderfs", "./binderfs" [pid 5466] <... futex resumed>) = 1 [pid 5463] <... futex resumed>) = 0 [pid 5463] exit_group(0) = ? [pid 5477] <... symlink resumed>) = 0 [pid 5477] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5466] +++ exited with 0 +++ [pid 5463] +++ exited with 0 +++ [pid 5477] <... futex resumed>) = 0 [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5463, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=23 /* 0.23 s */} --- [pid 5078] umount2("./21", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5477] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5078] openat(AT_FDCWD, "./21", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] umount2("./20", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5477] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5078] <... openat resumed>) = 3 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5477] <... mprotect resumed>) = 0 [pid 5078] fstat(3, [pid 5079] openat(AT_FDCWD, "./20", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5078] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] <... openat resumed>) = 3 [pid 5078] getdents64(3, [pid 5079] fstat(3, [pid 5078] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] umount2("./21/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5477] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5079] getdents64(3, [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5471] <... mount resumed>) = 0 [pid 5079] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5078] lstat("./21/binderfs", [pid 5471] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5477] <... clone resumed>, parent_tid=[5478], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5478 [pid 5471] <... openat resumed>) = 3 [pid 5079] umount2("./20/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5078] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5477] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5471] chdir("./file0" [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5078] unlink("./21/binderfs" [pid 5477] <... futex resumed>) = 0 [pid 5471] <... chdir resumed>) = 0 [pid 5079] lstat("./20/binderfs", [pid 5078] <... unlink resumed>) = 0 ./strace-static-x86_64: Process 5478 attached [pid 5471] ioctl(4, LOOP_CLR_FD [pid 5478] set_robust_list(0x7fdb729339e0, 24 [pid 5477] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5471] <... ioctl resumed>) = 0 [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5078] umount2("./21/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5478] <... set_robust_list resumed>) = 0 [pid 5471] close(4 [pid 5478] memfd_create("syzkaller", 0 [pid 5471] <... close resumed>) = 0 [pid 5079] unlink("./20/binderfs" [pid 5478] <... memfd_create resumed>) = 3 [pid 5471] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5478] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5471] <... futex resumed>) = 1 [pid 5469] <... futex resumed>) = 0 [pid 5478] <... mmap resumed>) = 0x7fdb6a513000 [pid 5471] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5469] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5471] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5469] <... futex resumed>) = 0 [pid 5079] <... unlink resumed>) = 0 [pid 5471] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5469] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5079] umount2("./20/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5471] <... open resumed>) = 4 [pid 5468] <... mount resumed>) = 0 [pid 5471] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5469] <... futex resumed>) = 0 [pid 5471] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5469] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5471] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5469] <... futex resumed>) = 0 [pid 5471] ioctl(4, FS_IOC_GETVERSION [pid 5469] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5476] <... write resumed>) = 4194304 [pid 5471] <... ioctl resumed>, 0x20000080) = 0 [pid 5468] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5471] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5469] <... futex resumed>) = 0 [pid 5471] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5469] exit_group(0 [pid 5471] <... futex resumed>) = ? [pid 5469] <... exit_group resumed>) = ? [pid 5471] +++ exited with 0 +++ [pid 5469] +++ exited with 0 +++ [ 89.351715][ T5468] REISERFS (device loop0): Using r5 hash to sort names [ 89.390440][ T5468] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5468] <... openat resumed>) = 3 [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5469, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} --- [pid 5076] umount2("./21", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5476] munmap(0x7fdb6a513000, 4194304 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5468] chdir("./file0" [pid 5076] openat(AT_FDCWD, "./21", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5076] fstat(3, [pid 5476] <... munmap resumed>) = 0 [pid 5468] <... chdir resumed>) = 0 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] getdents64(3, [pid 5468] ioctl(4, LOOP_CLR_FD [pid 5476] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5076] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5468] <... ioctl resumed>) = 0 [pid 5076] umount2("./21/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5476] <... openat resumed>) = 4 [pid 5468] close(4 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5476] ioctl(4, LOOP_SET_FD, 3 [pid 5468] <... close resumed>) = 0 [pid 5076] lstat("./21/binderfs", [pid 5468] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5468] <... futex resumed>) = 1 [pid 5076] unlink("./21/binderfs" [pid 5465] <... futex resumed>) = 0 [pid 5468] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5076] <... unlink resumed>) = 0 [pid 5468] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5465] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5076] umount2("./21/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5465] <... futex resumed>) = 0 [pid 5468] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5465] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5476] <... ioctl resumed>) = 0 [pid 5476] close(3) = 0 [pid 5476] mkdir("./file0", 0777 [pid 5468] <... open resumed>) = 4 [pid 5468] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5465] <... futex resumed>) = 0 [pid 5465] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5465] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5468] ioctl(4, FS_IOC_GETVERSION, 0x20000080) = 0 [pid 5468] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5465] <... futex resumed>) = 0 [pid 5465] exit_group(0) = ? [pid 5476] <... mkdir resumed>) = 0 [pid 5476] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5468] +++ exited with 0 +++ [pid 5465] +++ exited with 0 +++ [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5465, si_uid=0, si_status=0, si_utime=0, si_stime=25 /* 0.25 s */} --- [pid 5074] umount2("./21", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] openat(AT_FDCWD, "./21", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5074] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5074] umount2("./21/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5478] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] lstat("./21/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5074] unlink("./21/binderfs") = 0 [ 89.440988][ T5476] loop3: detected capacity change from 0 to 8192 [ 89.467806][ T5476] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5074] umount2("./21/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5074] umount2("./21/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 89.501485][ T5476] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 89.526521][ T5476] REISERFS (device loop3): using ordered data mode [pid 5074] lstat("./21/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] umount2("./21/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] openat(AT_FDCWD, "./21/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5074] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5074] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5074] close(4) = 0 [pid 5074] rmdir("./21/file0") = 0 [pid 5074] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5074] close(3) = 0 [ 89.579272][ T5476] reiserfs: using flush barriers [pid 5074] rmdir("./21" [pid 5078] <... umount2 resumed>) = 0 [pid 5076] <... umount2 resumed>) = 0 [pid 5076] umount2("./21/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5076] lstat("./21/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] umount2("./21/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5076] openat(AT_FDCWD, "./21/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5076] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5076] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5076] close(4) = 0 [pid 5076] rmdir("./21/file0") = 0 [pid 5076] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5076] close(3) = 0 [pid 5076] rmdir("./21") = 0 [pid 5076] mkdir("./22", 0777) = 0 [pid 5076] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5076] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5076] close(3) = 0 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5480 [pid 5078] umount2("./21/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5078] lstat("./21/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] umount2("./21/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5078] openat(AT_FDCWD, "./21/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5078] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5078] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5078] close(4) = 0 [pid 5074] <... rmdir resumed>) = 0 [pid 5078] rmdir("./21/file0") = 0 [pid 5074] mkdir("./22", 0777 [pid 5078] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5078] close(3) = 0 [pid 5078] rmdir("./21" [pid 5074] <... mkdir resumed>) = 0 [pid 5074] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5078] <... rmdir resumed>) = 0 [pid 5078] mkdir("./22", 0777) = 0 [pid 5078] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5074] <... openat resumed>) = 3 [pid 5078] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) ./strace-static-x86_64: Process 5480 attached [pid 5078] close(3 [pid 5074] ioctl(3, LOOP_CLR_FD [pid 5480] set_robust_list(0x5555571745e0, 24 [pid 5078] <... close resumed>) = 0 [pid 5480] <... set_robust_list resumed>) = 0 [pid 5078] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5480] chdir("./22" [pid 5074] <... ioctl resumed>) = 0 [pid 5480] <... chdir resumed>) = 0 [pid 5078] <... clone resumed>, child_tidptr=0x5555571745d0) = 5481 [pid 5480] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5074] close(3 [pid 5480] <... prctl resumed>) = 0 [pid 5480] setpgid(0, 0 [pid 5074] <... close resumed>) = 0 [pid 5480] <... setpgid resumed>) = 0 [pid 5480] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5480] <... openat resumed>) = 3 [pid 5480] write(3, "1000", 4) = 4 [pid 5480] close(3) = 0 [pid 5480] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5480] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5480] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5074] <... clone resumed>, child_tidptr=0x5555571745d0) = 5482 [pid 5480] <... mmap resumed>) = 0x7fdb72913000 [pid 5480] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE./strace-static-x86_64: Process 5481 attached ) = 0 [pid 5481] set_robust_list(0x5555571745e0, 24 [pid 5480] clone(child_stack=0x7fdb729333f0, 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 5482 attached [pid 5481] <... set_robust_list resumed>) = 0 [pid 5482] set_robust_list(0x5555571745e0, 24 [pid 5481] chdir("./22" [pid 5480] <... clone resumed>, parent_tid=[5483], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5483 [pid 5482] <... set_robust_list resumed>) = 0 [pid 5481] <... chdir resumed>) = 0 [pid 5480] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5482] chdir("./22" [pid 5481] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5480] <... futex resumed>) = 0 [pid 5482] <... chdir resumed>) = 0 [pid 5481] <... prctl resumed>) = 0 [pid 5480] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5482] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5481] setpgid(0, 0 [pid 5482] <... prctl resumed>) = 0 ./strace-static-x86_64: Process 5483 attached [pid 5482] setpgid(0, 0 [pid 5481] <... setpgid resumed>) = 0 [pid 5483] set_robust_list(0x7fdb729339e0, 24 [pid 5482] <... setpgid resumed>) = 0 [pid 5481] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5483] <... set_robust_list resumed>) = 0 [pid 5482] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5481] <... openat resumed>) = 3 [pid 5483] memfd_create("syzkaller", 0 [pid 5482] <... openat resumed>) = 3 [ 89.615029][ T5476] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5481] write(3, "1000", 4 [pid 5483] <... memfd_create resumed>) = 3 [pid 5482] write(3, "1000", 4 [pid 5481] <... write resumed>) = 4 [pid 5483] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5482] <... write resumed>) = 4 [pid 5481] close(3 [pid 5483] <... mmap resumed>) = 0x7fdb6a513000 [pid 5482] close(3 [pid 5481] <... close resumed>) = 0 [pid 5482] <... close resumed>) = 0 [pid 5481] symlink("/dev/binderfs", "./binderfs" [pid 5478] <... write resumed>) = 4194304 [pid 5482] symlink("/dev/binderfs", "./binderfs" [pid 5481] <... symlink resumed>) = 0 [pid 5482] <... symlink resumed>) = 0 [pid 5481] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5482] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5481] <... futex resumed>) = 0 [pid 5482] <... futex resumed>) = 0 [pid 5481] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5482] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5481] <... mmap resumed>) = 0x7fdb72913000 [pid 5482] <... mmap resumed>) = 0x7fdb72913000 [pid 5481] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5482] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5481] <... mprotect resumed>) = 0 [pid 5482] <... mprotect resumed>) = 0 [pid 5481] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5478] munmap(0x7fdb6a513000, 4194304 [pid 5482] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5481] <... clone resumed>, parent_tid=[5484], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5484 [pid 5079] <... umount2 resumed>) = 0 [pid 5482] <... clone resumed>, parent_tid=[5485], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5485 [pid 5481] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5482] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5481] <... futex resumed>) = 0 [pid 5482] <... futex resumed>) = 0 [pid 5481] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5482] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5485 attached [pid 5485] set_robust_list(0x7fdb729339e0, 24) = 0 ./strace-static-x86_64: Process 5484 attached [pid 5485] memfd_create("syzkaller", 0 [pid 5484] set_robust_list(0x7fdb729339e0, 24 [pid 5485] <... memfd_create resumed>) = 3 [pid 5484] <... set_robust_list resumed>) = 0 [pid 5485] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5484] memfd_create("syzkaller", 0 [pid 5485] <... mmap resumed>) = 0x7fdb6a513000 [pid 5484] <... memfd_create resumed>) = 3 [pid 5484] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5478] <... munmap resumed>) = 0 [pid 5484] <... mmap resumed>) = 0x7fdb6a513000 [pid 5478] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5478] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5478] close(3 [pid 5079] umount2("./20/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5478] <... close resumed>) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5478] mkdir("./file0", 0777) = 0 [pid 5079] lstat("./20/file0", [pid 5478] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5079] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] umount2("./20/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./20/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5079] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5079] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [ 89.732457][ T5476] REISERFS (device loop3): checking transaction log (loop3) [ 89.744402][ T5478] loop1: detected capacity change from 0 to 8192 [pid 5079] close(4) = 0 [pid 5483] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5079] rmdir("./20/file0") = 0 [pid 5079] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5079] close(3) = 0 [pid 5079] rmdir("./20") = 0 [pid 5484] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5079] mkdir("./21", 0777) = 0 [pid 5079] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5485] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5079] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5079] close(3) = 0 [ 89.795086][ T5478] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 89.832759][ T5478] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5487 [pid 5483] <... write resumed>) = 4194304 ./strace-static-x86_64: Process 5487 attached [pid 5487] set_robust_list(0x5555571745e0, 24) = 0 [pid 5483] munmap(0x7fdb6a513000, 4194304 [pid 5487] chdir("./21" [pid 5483] <... munmap resumed>) = 0 [pid 5487] <... chdir resumed>) = 0 [pid 5483] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5487] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5483] <... openat resumed>) = 4 [pid 5487] <... prctl resumed>) = 0 [ 89.873512][ T5478] REISERFS (device loop1): using ordered data mode [ 89.880768][ T5478] reiserfs: using flush barriers [ 89.898460][ T5478] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5483] ioctl(4, LOOP_SET_FD, 3 [pid 5487] setpgid(0, 0 [pid 5485] <... write resumed>) = 4194304 [pid 5483] <... ioctl resumed>) = 0 [pid 5487] <... setpgid resumed>) = 0 [pid 5487] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5485] munmap(0x7fdb6a513000, 4194304 [pid 5487] <... openat resumed>) = 3 [pid 5487] write(3, "1000", 4) = 4 [pid 5487] close(3) = 0 [pid 5485] <... munmap resumed>) = 0 [pid 5487] symlink("/dev/binderfs", "./binderfs" [pid 5485] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5487] <... symlink resumed>) = 0 [pid 5487] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5485] <... openat resumed>) = 4 [pid 5487] <... futex resumed>) = 0 [pid 5485] ioctl(4, LOOP_SET_FD, 3 [pid 5487] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5487] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5487] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5488], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5488 [pid 5487] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5487] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5485] <... ioctl resumed>) = 0 [pid 5485] close(3 [pid 5483] close(3 [pid 5485] <... close resumed>) = 0 [pid 5483] <... close resumed>) = 0 ./strace-static-x86_64: Process 5488 attached [pid 5485] mkdir("./file0", 0777 [pid 5483] mkdir("./file0", 0777 [pid 5488] set_robust_list(0x7fdb729339e0, 24 [pid 5485] <... mkdir resumed>) = 0 [pid 5483] <... mkdir resumed>) = 0 [pid 5488] <... set_robust_list resumed>) = 0 [pid 5483] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5488] memfd_create("syzkaller", 0 [pid 5485] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5488] <... memfd_create resumed>) = 3 [pid 5488] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [ 89.923514][ T5483] loop2: detected capacity change from 0 to 8192 [ 89.942378][ T5485] loop0: detected capacity change from 0 to 8192 [pid 5484] <... write resumed>) = 4194304 [pid 5484] munmap(0x7fdb6a513000, 4194304) = 0 [pid 5484] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [ 89.970119][ T5478] REISERFS (device loop1): checking transaction log (loop1) [ 89.970192][ T5483] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 89.984360][ T5484] loop4: detected capacity change from 0 to 8192 [ 89.997556][ T5485] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5484] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5484] close(3) = 0 [pid 5476] <... mount resumed>) = 0 [pid 5484] mkdir("./file0", 0777) = 0 [pid 5484] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5476] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [ 90.017750][ T5483] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 90.027378][ T5476] REISERFS (device loop3): Using r5 hash to sort names [ 90.035092][ T5476] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 90.044505][ T5483] REISERFS (device loop2): using ordered data mode [ 90.049186][ T5485] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 90.052027][ T5483] reiserfs: using flush barriers [pid 5476] chdir("./file0") = 0 [pid 5476] ioctl(4, LOOP_CLR_FD) = 0 [pid 5476] close(4) = 0 [pid 5476] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5475] <... futex resumed>) = 0 [pid 5475] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5476] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5475] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5476] <... open resumed>) = 4 [pid 5476] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5476] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5475] <... futex resumed>) = 0 [pid 5475] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5476] <... futex resumed>) = 0 [pid 5475] <... futex resumed>) = 1 [pid 5476] ioctl(4, FS_IOC_GETVERSION [pid 5475] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5476] <... ioctl resumed>, 0x20000080) = 0 [pid 5476] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5475] <... futex resumed>) = 0 [pid 5476] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5475] exit_group(0 [pid 5476] <... futex resumed>) = ? [pid 5475] <... exit_group resumed>) = ? [pid 5476] +++ exited with 0 +++ [pid 5475] +++ exited with 0 +++ [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5475, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=20 /* 0.20 s */} --- [pid 5077] umount2("./22", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] openat(AT_FDCWD, "./22", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5077] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [ 90.068489][ T5483] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 90.085982][ T5484] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 90.086712][ T5483] REISERFS (device loop2): checking transaction log (loop2) [pid 5077] umount2("./22/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] lstat("./22/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] unlink("./22/binderfs") = 0 [pid 5077] umount2("./22/file0", MNT_DETACH|UMOUNT_NOFOLLOW [ 90.130484][ T5485] REISERFS (device loop0): using ordered data mode [ 90.175718][ T5484] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 90.186591][ T5484] REISERFS (device loop4): using ordered data mode [ 90.194812][ T5484] reiserfs: using flush barriers [ 90.205608][ T5485] reiserfs: using flush barriers [ 90.211751][ T5484] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 90.233448][ T5485] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 90.251944][ T5484] REISERFS (device loop4): checking transaction log (loop4) [pid 5488] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304) = 4194304 [ 90.272847][ T5485] REISERFS (device loop0): checking transaction log (loop0) [pid 5488] munmap(0x7fdb6a513000, 4194304) = 0 [pid 5488] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 5488] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5488] close(3) = 0 [pid 5488] mkdir("./file0", 0777) = 0 [ 90.322370][ T5488] loop5: detected capacity change from 0 to 8192 [ 90.372977][ T5488] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 90.395905][ T5478] REISERFS (device loop1): Using r5 hash to sort names [ 90.414308][ T5478] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [pid 5488] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5478] <... mount resumed>) = 0 [pid 5077] <... umount2 resumed>) = 0 [ 90.420405][ T5488] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 90.444179][ T5483] REISERFS (device loop2): Using r5 hash to sort names [ 90.444476][ T5488] REISERFS (device loop5): using ordered data mode [ 90.451380][ T5483] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 90.457660][ T5488] reiserfs: using flush barriers [pid 5478] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5077] umount2("./22/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5478] <... openat resumed>) = 3 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5478] chdir("./file0" [pid 5077] lstat("./22/file0", [pid 5478] <... chdir resumed>) = 0 [pid 5077] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5478] ioctl(4, LOOP_CLR_FD [pid 5077] umount2("./22/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5478] <... ioctl resumed>) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5478] close(4 [ 90.472436][ T5488] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 90.493506][ T5485] REISERFS (device loop0): Using r5 hash to sort names [ 90.501677][ T5488] REISERFS (device loop5): checking transaction log (loop5) [ 90.506123][ T5485] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5077] openat(AT_FDCWD, "./22/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5485] <... mount resumed>) = 0 [pid 5483] <... mount resumed>) = 0 [pid 5478] <... close resumed>) = 0 [pid 5485] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5483] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5485] <... openat resumed>) = 3 [pid 5483] <... openat resumed>) = 3 [pid 5485] chdir("./file0" [pid 5483] chdir("./file0" [pid 5485] <... chdir resumed>) = 0 [pid 5483] <... chdir resumed>) = 0 [pid 5485] ioctl(4, LOOP_CLR_FD [pid 5483] ioctl(4, LOOP_CLR_FD [pid 5478] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] <... openat resumed>) = 4 [pid 5478] <... futex resumed>) = 1 [pid 5077] fstat(4, [pid 5485] <... ioctl resumed>) = 0 [pid 5483] <... ioctl resumed>) = 0 [pid 5478] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5477] <... futex resumed>) = 0 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5485] close(4 [pid 5484] <... mount resumed>) = 0 [pid 5483] close(4 [pid 5477] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] getdents64(4, [pid 5485] <... close resumed>) = 0 [pid 5483] <... close resumed>) = 0 [pid 5478] <... futex resumed>) = 0 [pid 5477] <... futex resumed>) = 1 [pid 5077] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5485] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5483] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5478] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5477] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5077] getdents64(4, [pid 5485] <... futex resumed>) = 1 [pid 5484] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5483] <... futex resumed>) = 1 [pid 5482] <... futex resumed>) = 0 [pid 5480] <... futex resumed>) = 0 [pid 5478] <... open resumed>) = 4 [pid 5077] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5485] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5484] <... openat resumed>) = 3 [pid 5483] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5482] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5480] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5478] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] close(4 [pid 5485] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5484] chdir("./file0" [pid 5483] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5482] <... futex resumed>) = 0 [pid 5480] <... futex resumed>) = 0 [pid 5485] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5484] <... chdir resumed>) = 0 [pid 5483] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5478] <... futex resumed>) = 1 [pid 5477] <... futex resumed>) = 0 [pid 5485] <... open resumed>) = 4 [pid 5484] ioctl(4, LOOP_CLR_FD [pid 5483] <... open resumed>) = 4 [pid 5482] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5480] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5478] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5477] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] <... close resumed>) = 0 [pid 5485] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5484] <... ioctl resumed>) = 0 [pid 5483] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5482] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5480] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5478] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5477] <... futex resumed>) = 0 [pid 5077] rmdir("./22/file0" [pid 5485] <... futex resumed>) = 0 [pid 5484] close(4 [pid 5483] <... futex resumed>) = 0 [pid 5482] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5480] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5478] ioctl(4, FS_IOC_GETVERSION [ 90.520033][ T5484] REISERFS (device loop4): Using r5 hash to sort names [ 90.529552][ T5484] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [pid 5477] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5485] ioctl(4, FS_IOC_GETVERSION [pid 5484] <... close resumed>) = 0 [pid 5483] ioctl(4, FS_IOC_GETVERSION [pid 5482] <... futex resumed>) = 0 [pid 5480] <... futex resumed>) = 0 [pid 5478] <... ioctl resumed>, 0x20000080) = 0 [pid 5077] <... rmdir resumed>) = 0 [pid 5485] <... ioctl resumed>, 0x20000080) = 0 [pid 5484] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5483] <... ioctl resumed>, 0x20000080) = 0 [pid 5485] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5484] <... futex resumed>) = 1 [pid 5483] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5485] <... futex resumed>) = 0 [pid 5484] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5483] <... futex resumed>) = 0 [pid 5485] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5483] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5482] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5480] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5478] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] getdents64(3, [pid 5481] <... futex resumed>) = 0 [pid 5478] <... futex resumed>) = 1 [pid 5481] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5482] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5480] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5481] <... futex resumed>) = 1 [pid 5478] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5077] close(3 [pid 5484] <... futex resumed>) = 0 [pid 5477] <... futex resumed>) = 0 [pid 5484] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5477] exit_group(0 [pid 5484] <... open resumed>) = 4 [pid 5480] exit_group(0 [pid 5477] <... exit_group resumed>) = ? [pid 5484] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5483] <... futex resumed>) = ? [pid 5482] exit_group(0 [pid 5481] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5480] <... exit_group resumed>) = ? [pid 5478] <... futex resumed>) = ? [pid 5077] <... close resumed>) = 0 [pid 5485] <... futex resumed>) = ? [pid 5484] <... futex resumed>) = 0 [pid 5483] +++ exited with 0 +++ [pid 5482] <... exit_group resumed>) = ? [pid 5481] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5485] +++ exited with 0 +++ [pid 5484] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5480] +++ exited with 0 +++ [pid 5478] +++ exited with 0 +++ [pid 5477] +++ exited with 0 +++ [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5480, si_uid=0, si_status=0, si_utime=0, si_stime=24 /* 0.24 s */} --- [pid 5481] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5477, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=16 /* 0.16 s */} --- [pid 5482] +++ exited with 0 +++ [pid 5481] <... futex resumed>) = 1 [pid 5481] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5077] rmdir("./22" [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5482, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=17 /* 0.17 s */} --- [pid 5484] <... futex resumed>) = 0 [pid 5484] ioctl(4, FS_IOC_GETVERSION, 0x20000080) = 0 [pid 5484] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5484] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5077] <... rmdir resumed>) = 0 [pid 5481] <... futex resumed>) = 0 [pid 5481] exit_group(0 [pid 5484] <... futex resumed>) = ? [pid 5481] <... exit_group resumed>) = ? [pid 5076] umount2("./22", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5484] +++ exited with 0 +++ [pid 5077] mkdir("./23", 0777 [pid 5075] umount2("./21", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] umount2("./22", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5481] +++ exited with 0 +++ [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5078] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5481, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=20 /* 0.20 s */} --- [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] openat(AT_FDCWD, "./22", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] openat(AT_FDCWD, "./21", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5074] openat(AT_FDCWD, "./22", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] <... openat resumed>) = 3 [pid 5075] <... openat resumed>) = 3 [pid 5074] <... openat resumed>) = 3 [pid 5078] umount2("./22", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] fstat(3, [pid 5074] fstat(3, [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] fstat(3, [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] openat(AT_FDCWD, "./22", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] getdents64(3, [pid 5078] <... openat resumed>) = 3 [pid 5074] getdents64(3, [pid 5078] fstat(3, [pid 5076] getdents64(3, [pid 5074] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5076] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5075] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5078] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] getdents64(3, [pid 5077] <... mkdir resumed>) = 0 [pid 5076] umount2("./22/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] umount2("./21/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] umount2("./22/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5078] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5078] umount2("./22/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] lstat("./22/binderfs", [pid 5075] lstat("./21/binderfs", [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... openat resumed>) = 3 [pid 5074] lstat("./22/binderfs", [pid 5078] lstat("./22/binderfs", [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5078] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] ioctl(3, LOOP_CLR_FD [pid 5076] unlink("./22/binderfs" [pid 5075] unlink("./21/binderfs" [pid 5074] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5078] unlink("./22/binderfs" [pid 5077] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5076] <... unlink resumed>) = 0 [pid 5075] <... unlink resumed>) = 0 [pid 5074] unlink("./22/binderfs" [pid 5078] <... unlink resumed>) = 0 [pid 5077] close(3 [pid 5076] umount2("./22/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] umount2("./21/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5078] umount2("./22/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... close resumed>) = 0 [pid 5074] <... unlink resumed>) = 0 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5074] umount2("./22/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... clone resumed>, child_tidptr=0x5555571745d0) = 5493 ./strace-static-x86_64: Process 5493 attached [pid 5493] set_robust_list(0x5555571745e0, 24) = 0 [pid 5493] chdir("./23") = 0 [pid 5493] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5493] setpgid(0, 0) = 0 [pid 5493] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5493] write(3, "1000", 4) = 4 [pid 5493] close(3) = 0 [pid 5493] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5493] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5493] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5493] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5493] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5494], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5494 [pid 5493] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5493] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5494 attached [pid 5494] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5494] memfd_create("syzkaller", 0) = 3 [pid 5494] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [pid 5488] <... mount resumed>) = 0 [pid 5488] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5488] chdir("./file0") = 0 [pid 5488] ioctl(4, LOOP_CLR_FD) = 0 [pid 5488] close(4) = 0 [pid 5488] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5488] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5487] <... futex resumed>) = 0 [pid 5487] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5487] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5488] <... futex resumed>) = 0 [pid 5488] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 5488] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5487] <... futex resumed>) = 0 [pid 5488] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 5487] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5488] ioctl(4, FS_IOC_GETVERSION [pid 5487] <... futex resumed>) = 0 [pid 5487] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5488] <... ioctl resumed>, 0x20000080) = 0 [pid 5488] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5487] <... futex resumed>) = 0 [pid 5488] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5487] exit_group(0) = ? [pid 5488] <... futex resumed>) = ? [pid 5488] +++ exited with 0 +++ [pid 5487] +++ exited with 0 +++ [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5487, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [ 90.705809][ T5488] REISERFS (device loop5): Using r5 hash to sort names [ 90.714180][ T5488] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 5079] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5079] umount2("./21", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./21", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5079] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5079] umount2("./21/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] lstat("./21/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] unlink("./21/binderfs") = 0 [pid 5079] umount2("./21/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5494] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5078] <... umount2 resumed>) = 0 [pid 5078] umount2("./22/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5078] lstat("./22/file0", [pid 5075] <... umount2 resumed>) = 0 [pid 5078] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] umount2("./22/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5075] umount2("./21/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5078] openat(AT_FDCWD, "./22/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5078] fstat(4, [pid 5075] lstat("./21/file0", [pid 5078] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] <... umount2 resumed>) = 0 [pid 5078] getdents64(4, [pid 5075] umount2("./21/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] umount2("./22/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5078] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] openat(AT_FDCWD, "./21/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5078] getdents64(4, [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... openat resumed>) = 4 [pid 5078] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5075] fstat(4, [pid 5074] lstat("./22/file0", [pid 5078] close(4 [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] <... close resumed>) = 0 [pid 5075] getdents64(4, [pid 5074] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] rmdir("./22/file0" [pid 5075] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5074] umount2("./22/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5078] <... rmdir resumed>) = 0 [pid 5075] getdents64(4, [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] openat(AT_FDCWD, "./22/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5074] <... openat resumed>) = 4 [pid 5075] close(4 [pid 5074] fstat(4, [pid 5078] getdents64(3, [pid 5075] <... close resumed>) = 0 [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] rmdir("./21/file0" [pid 5078] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5074] getdents64(4, [pid 5075] <... rmdir resumed>) = 0 [pid 5078] close(3 [pid 5075] getdents64(3, [pid 5074] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5078] <... close resumed>) = 0 [pid 5075] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5074] getdents64(4, [pid 5078] rmdir("./22" [pid 5075] close(3 [pid 5074] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5074] close(4 [pid 5075] <... close resumed>) = 0 [pid 5074] <... close resumed>) = 0 [pid 5076] <... umount2 resumed>) = 0 [pid 5076] umount2("./22/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5076] lstat("./22/file0", [pid 5078] <... rmdir resumed>) = 0 [pid 5075] rmdir("./21" [pid 5074] rmdir("./22/file0" [pid 5078] mkdir("./23", 0777 [pid 5076] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] umount2("./22/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5076] openat(AT_FDCWD, "./22/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5076] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5076] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5076] close(4) = 0 [pid 5076] rmdir("./22/file0") = 0 [pid 5076] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5076] close(3) = 0 [pid 5074] <... rmdir resumed>) = 0 [pid 5076] rmdir("./22") = 0 [pid 5076] mkdir("./23", 0777 [pid 5075] <... rmdir resumed>) = 0 [pid 5074] getdents64(3, [pid 5078] <... mkdir resumed>) = 0 [pid 5076] <... mkdir resumed>) = 0 [pid 5075] mkdir("./22", 0777 [pid 5078] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5074] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5076] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5075] <... mkdir resumed>) = 0 [pid 5074] close(3 [pid 5078] <... openat resumed>) = 3 [pid 5078] ioctl(3, LOOP_CLR_FD [pid 5075] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5074] <... close resumed>) = 0 [pid 5078] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5078] close(3 [pid 5075] <... openat resumed>) = 3 [pid 5074] rmdir("./22" [pid 5078] <... close resumed>) = 0 [pid 5075] ioctl(3, LOOP_CLR_FD [pid 5076] <... openat resumed>) = 3 [pid 5074] <... rmdir resumed>) = 0 [pid 5078] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5076] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5075] close(3 [pid 5074] mkdir("./23", 0777 [pid 5078] <... clone resumed>, child_tidptr=0x5555571745d0) = 5495 [pid 5075] <... close resumed>) = 0 [pid 5076] close(3) = 0 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5074] <... mkdir resumed>) = 0 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] <... clone resumed>, child_tidptr=0x5555571745d0) = 5496 [pid 5074] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5074] ioctl(3, LOOP_CLR_FD [pid 5076] <... clone resumed>, child_tidptr=0x5555571745d0) = 5497 [pid 5074] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5074] close(3./strace-static-x86_64: Process 5495 attached [pid 5079] <... umount2 resumed>) = 0 [pid 5074] <... close resumed>) = 0 [pid 5495] set_robust_list(0x5555571745e0, 24 [pid 5079] umount2("./21/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5495] <... set_robust_list resumed>) = 0 ./strace-static-x86_64: Process 5496 attached [pid 5496] set_robust_list(0x5555571745e0, 24) = 0 ./strace-static-x86_64: Process 5497 attached [pid 5496] chdir("./22" [pid 5495] chdir("./23" [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] <... clone resumed>, child_tidptr=0x5555571745d0) = 5498 [pid 5497] set_robust_list(0x5555571745e0, 24 [pid 5496] <... chdir resumed>) = 0 [pid 5495] <... chdir resumed>) = 0 [pid 5079] lstat("./21/file0", [pid 5497] <... set_robust_list resumed>) = 0 [pid 5496] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5495] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5079] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 ./strace-static-x86_64: Process 5498 attached [pid 5497] chdir("./23" [pid 5496] <... prctl resumed>) = 0 [pid 5495] <... prctl resumed>) = 0 [pid 5079] umount2("./21/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5498] set_robust_list(0x5555571745e0, 24 [pid 5497] <... chdir resumed>) = 0 [pid 5496] setpgid(0, 0 [pid 5495] setpgid(0, 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5498] <... set_robust_list resumed>) = 0 [pid 5497] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5496] <... setpgid resumed>) = 0 [pid 5495] <... setpgid resumed>) = 0 [pid 5079] openat(AT_FDCWD, "./21/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5498] chdir("./23" [pid 5497] <... prctl resumed>) = 0 [pid 5496] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5495] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5498] <... chdir resumed>) = 0 [pid 5497] setpgid(0, 0 [pid 5496] <... openat resumed>) = 3 [pid 5495] <... openat resumed>) = 3 [pid 5079] <... openat resumed>) = 4 [pid 5498] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5497] <... setpgid resumed>) = 0 [pid 5496] write(3, "1000", 4 [pid 5495] write(3, "1000", 4 [pid 5079] fstat(4, [pid 5498] <... prctl resumed>) = 0 [pid 5497] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5496] <... write resumed>) = 4 [pid 5494] <... write resumed>) = 4194304 [pid 5495] <... write resumed>) = 4 [pid 5498] setpgid(0, 0 [pid 5497] <... openat resumed>) = 3 [pid 5496] close(3 [pid 5495] close(3 [pid 5494] munmap(0x7fdb6a513000, 4194304 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5498] <... setpgid resumed>) = 0 [pid 5497] write(3, "1000", 4 [pid 5496] <... close resumed>) = 0 [pid 5495] <... close resumed>) = 0 [pid 5497] <... write resumed>) = 4 [pid 5496] symlink("/dev/binderfs", "./binderfs" [pid 5494] <... munmap resumed>) = 0 [pid 5079] getdents64(4, [pid 5498] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5497] close(3 [pid 5496] <... symlink resumed>) = 0 [pid 5495] symlink("/dev/binderfs", "./binderfs" [pid 5494] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5079] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5498] <... openat resumed>) = 3 [pid 5497] <... close resumed>) = 0 [pid 5496] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5498] write(3, "1000", 4 [pid 5497] symlink("/dev/binderfs", "./binderfs" [pid 5496] <... futex resumed>) = 0 [pid 5495] <... symlink resumed>) = 0 [pid 5494] <... openat resumed>) = 4 [pid 5079] getdents64(4, [pid 5498] <... write resumed>) = 4 [pid 5497] <... symlink resumed>) = 0 [pid 5496] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5495] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5494] ioctl(4, LOOP_SET_FD, 3 [pid 5079] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5498] close(3 [pid 5497] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5496] <... mmap resumed>) = 0x7fdb72913000 [pid 5495] <... futex resumed>) = 0 [pid 5497] <... futex resumed>) = 0 [pid 5496] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5497] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5496] <... mprotect resumed>) = 0 [pid 5497] <... mmap resumed>) = 0x7fdb72913000 [pid 5496] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5497] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5496] <... clone resumed>, parent_tid=[5499], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5499 [pid 5497] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5496] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5497] <... clone resumed>, parent_tid=[5500], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5500 [pid 5496] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5497] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5497] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5079] close(4 [pid 5498] <... close resumed>) = 0 [pid 5498] symlink("/dev/binderfs", "./binderfs" [pid 5495] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5079] <... close resumed>) = 0 [pid 5498] <... symlink resumed>) = 0 [pid 5495] <... mmap resumed>) = 0x7fdb72913000 [pid 5079] rmdir("./21/file0" [pid 5498] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] <... rmdir resumed>) = 0 [pid 5495] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5498] <... futex resumed>) = 0 [pid 5079] getdents64(3, ./strace-static-x86_64: Process 5500 attached ./strace-static-x86_64: Process 5499 attached [pid 5498] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5495] <... mprotect resumed>) = 0 [pid 5079] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5500] set_robust_list(0x7fdb729339e0, 24 [pid 5499] set_robust_list(0x7fdb729339e0, 24 [pid 5498] <... mmap resumed>) = 0x7fdb72913000 [pid 5495] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5079] close(3 [pid 5500] <... set_robust_list resumed>) = 0 [pid 5499] <... set_robust_list resumed>) = 0 [pid 5498] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5500] memfd_create("syzkaller", 0 [pid 5499] memfd_create("syzkaller", 0 [pid 5498] <... mprotect resumed>) = 0 [pid 5495] <... clone resumed>, parent_tid=[5501], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5501 [pid 5494] <... ioctl resumed>) = 0 [pid 5079] <... close resumed>) = 0 [pid 5500] <... memfd_create resumed>) = 3 [pid 5499] <... memfd_create resumed>) = 3 [pid 5498] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5495] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5494] close(3 [pid 5079] rmdir("./21"./strace-static-x86_64: Process 5501 attached [pid 5500] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5499] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5495] <... futex resumed>) = 0 [pid 5501] set_robust_list(0x7fdb729339e0, 24 [pid 5500] <... mmap resumed>) = 0x7fdb6a513000 [pid 5499] <... mmap resumed>) = 0x7fdb6a513000 [pid 5498] <... clone resumed>, parent_tid=[5502], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5502 [pid 5495] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5494] <... close resumed>) = 0 [pid 5079] <... rmdir resumed>) = 0 ./strace-static-x86_64: Process 5502 attached [pid 5501] <... set_robust_list resumed>) = 0 [pid 5498] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5494] mkdir("./file0", 0777 [pid 5079] mkdir("./22", 0777 [pid 5502] set_robust_list(0x7fdb729339e0, 24 [pid 5501] memfd_create("syzkaller", 0 [pid 5498] <... futex resumed>) = 0 [pid 5494] <... mkdir resumed>) = 0 [pid 5502] <... set_robust_list resumed>) = 0 [pid 5501] <... memfd_create resumed>) = 3 [pid 5498] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5494] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5079] <... mkdir resumed>) = 0 [pid 5502] memfd_create("syzkaller", 0 [pid 5501] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [ 90.979200][ T5494] loop3: detected capacity change from 0 to 8192 [pid 5079] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5501] <... mmap resumed>) = 0x7fdb6a513000 [pid 5502] <... memfd_create resumed>) = 3 [pid 5500] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5499] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5079] <... openat resumed>) = 3 [pid 5502] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5079] ioctl(3, LOOP_CLR_FD [pid 5502] <... mmap resumed>) = 0x7fdb6a513000 [ 91.042544][ T5494] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 91.064653][ T5494] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [pid 5079] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5501] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5079] close(3) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5504 ./strace-static-x86_64: Process 5504 attached [pid 5504] set_robust_list(0x5555571745e0, 24) = 0 [pid 5504] chdir("./22") = 0 [pid 5504] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5504] setpgid(0, 0) = 0 [pid 5504] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5504] write(3, "1000", 4) = 4 [pid 5504] close(3) = 0 [pid 5504] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5504] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 91.090274][ T5494] REISERFS (device loop3): using ordered data mode [pid 5504] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5504] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5504] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5505], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5505 [pid 5504] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5504] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5505 attached [pid 5505] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5505] memfd_create("syzkaller", 0) = 3 [pid 5505] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [pid 5502] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5500] <... write resumed>) = 4194304 [pid 5499] <... write resumed>) = 4194304 [ 91.124099][ T5494] reiserfs: using flush barriers [ 91.134534][ T5494] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5500] munmap(0x7fdb6a513000, 4194304) = 0 [pid 5500] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5500] ioctl(4, LOOP_SET_FD, 3 [pid 5499] munmap(0x7fdb6a513000, 4194304) = 0 [pid 5499] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5499] ioctl(4, LOOP_SET_FD, 3 [pid 5505] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5501] <... write resumed>) = 4194304 [pid 5500] <... ioctl resumed>) = 0 [pid 5500] close(3) = 0 [pid 5500] mkdir("./file0", 0777) = 0 [pid 5500] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5501] munmap(0x7fdb6a513000, 4194304) = 0 [pid 5501] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [ 91.194663][ T5494] REISERFS (device loop3): checking transaction log (loop3) [ 91.212455][ T5500] loop2: detected capacity change from 0 to 8192 [ 91.226200][ T5499] loop1: detected capacity change from 0 to 8192 [pid 5501] ioctl(4, LOOP_SET_FD, 3 [pid 5499] <... ioctl resumed>) = 0 [pid 5499] close(3) = 0 [pid 5499] mkdir("./file0", 0777) = 0 [pid 5499] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5501] <... ioctl resumed>) = 0 [pid 5501] close(3) = 0 [pid 5501] mkdir("./file0", 0777) = 0 [ 91.249499][ T5501] loop4: detected capacity change from 0 to 8192 [ 91.261729][ T5500] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 91.277518][ T5499] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 91.288436][ T5500] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [pid 5501] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5502] <... write resumed>) = 4194304 [pid 5502] munmap(0x7fdb6a513000, 4194304) = 0 [pid 5502] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5502] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5502] close(3) = 0 [pid 5502] mkdir("./file0", 0777) = 0 [ 91.317189][ T5502] loop0: detected capacity change from 0 to 8192 [ 91.324746][ T5501] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 91.328501][ T5500] REISERFS (device loop2): using ordered data mode [ 91.342567][ T5499] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 91.344963][ T5500] reiserfs: using flush barriers [ 91.353792][ T5499] REISERFS (device loop1): using ordered data mode [ 91.366574][ T5502] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 91.380107][ T5500] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 91.380215][ T5499] reiserfs: using flush barriers [ 91.396965][ T5502] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 91.402584][ T5499] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 91.418680][ T5501] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 91.427153][ T5499] REISERFS (device loop1): checking transaction log (loop1) [pid 5502] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5505] <... write resumed>) = 4194304 [pid 5505] munmap(0x7fdb6a513000, 4194304) = 0 [pid 5505] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [ 91.473934][ T5500] REISERFS (device loop2): checking transaction log (loop2) [ 91.490353][ T5505] loop5: detected capacity change from 0 to 8192 [pid 5505] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5505] close(3) = 0 [pid 5505] mkdir("./file0", 0777) = 0 [ 91.518571][ T5499] REISERFS (device loop1): Using r5 hash to sort names [ 91.521131][ T5502] REISERFS (device loop0): using ordered data mode [ 91.526748][ T5499] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 91.546875][ T5501] REISERFS (device loop4): using ordered data mode [ 91.549996][ T5502] reiserfs: using flush barriers [ 91.556202][ T5501] reiserfs: using flush barriers [pid 5505] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5499] <... mount resumed>) = 0 [pid 5499] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [ 91.562486][ T5505] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 91.580784][ T5494] REISERFS (device loop3): Using r5 hash to sort names [ 91.588790][ T5494] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 91.592734][ T5501] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5499] chdir("./file0") = 0 [pid 5494] <... mount resumed>) = 0 [pid 5494] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5494] chdir("./file0") = 0 [pid 5494] ioctl(4, LOOP_CLR_FD) = 0 [pid 5494] close(4 [pid 5499] ioctl(4, LOOP_CLR_FD [pid 5494] <... close resumed>) = 0 [pid 5499] <... ioctl resumed>) = 0 [pid 5494] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5499] close(4) = 0 [pid 5494] <... futex resumed>) = 1 [pid 5493] <... futex resumed>) = 0 [pid 5499] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5494] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5493] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5499] <... futex resumed>) = 1 [pid 5496] <... futex resumed>) = 0 [pid 5494] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5493] <... futex resumed>) = 0 [pid 5499] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5496] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [ 91.598623][ T5502] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 91.635178][ T5502] REISERFS (device loop0): checking transaction log (loop0) [pid 5494] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5493] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5499] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5496] <... futex resumed>) = 0 [pid 5494] <... open resumed>) = 4 [pid 5494] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5493] <... futex resumed>) = 0 [pid 5494] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5493] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5494] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5493] <... futex resumed>) = 0 [pid 5494] ioctl(4, FS_IOC_GETVERSION [pid 5493] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5494] <... ioctl resumed>, 0x20000080) = 0 [pid 5494] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5493] <... futex resumed>) = 0 [pid 5494] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5493] exit_group(0 [pid 5499] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5496] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5494] <... futex resumed>) = ? [pid 5493] <... exit_group resumed>) = ? [pid 5494] +++ exited with 0 +++ [pid 5493] +++ exited with 0 +++ [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5493, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=16 /* 0.16 s */} --- [pid 5499] <... open resumed>) = 4 [pid 5499] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5499] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5077] umount2("./23", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5496] <... futex resumed>) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] openat(AT_FDCWD, "./23", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [ 91.690372][ T5505] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 91.701747][ T5505] REISERFS (device loop5): using ordered data mode [ 91.708556][ T5502] REISERFS (device loop0): Using r5 hash to sort names [ 91.715864][ T5502] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 91.725161][ T5505] reiserfs: using flush barriers [pid 5496] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] fstat(3, [pid 5499] <... futex resumed>) = 0 [pid 5496] <... futex resumed>) = 1 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5502] <... mount resumed>) = 0 [pid 5499] ioctl(4, FS_IOC_GETVERSION [pid 5496] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5077] getdents64(3, [pid 5499] <... ioctl resumed>, 0x20000080) = 0 [pid 5077] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5499] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] umount2("./23/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5499] <... futex resumed>) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5499] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5077] lstat("./23/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5502] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5496] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5077] unlink("./23/binderfs" [pid 5502] <... openat resumed>) = 3 [pid 5077] <... unlink resumed>) = 0 [ 91.731688][ T5505] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 91.747635][ T5500] REISERFS (device loop2): Using r5 hash to sort names [ 91.748740][ T5505] REISERFS (device loop5): checking transaction log (loop5) [ 91.775216][ T5501] REISERFS (device loop4): checking transaction log (loop4) [pid 5077] umount2("./23/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5502] chdir("./file0" [pid 5496] exit_group(0 [pid 5502] <... chdir resumed>) = 0 [pid 5499] <... futex resumed>) = ? [pid 5496] <... exit_group resumed>) = ? [pid 5502] ioctl(4, LOOP_CLR_FD [pid 5499] +++ exited with 0 +++ [pid 5502] <... ioctl resumed>) = 0 [pid 5496] +++ exited with 0 +++ [ 91.780583][ T5500] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 5502] close(4) = 0 [pid 5500] <... mount resumed>) = 0 [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5496, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=20 /* 0.20 s */} --- [pid 5502] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5500] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5498] <... futex resumed>) = 0 [pid 5075] restart_syscall(<... resuming interrupted clone ...> [pid 5502] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5500] <... openat resumed>) = 3 [pid 5500] chdir("./file0") = 0 [pid 5500] ioctl(4, LOOP_CLR_FD) = 0 [pid 5500] close(4) = 0 [pid 5500] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5497] <... futex resumed>) = 0 [pid 5500] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5497] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5500] <... open resumed>) = 4 [pid 5497] <... futex resumed>) = 0 [pid 5500] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5497] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5500] <... futex resumed>) = 0 [pid 5497] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5500] ioctl(4, FS_IOC_GETVERSION [pid 5497] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5500] <... ioctl resumed>, 0x20000080) = 0 [pid 5497] <... futex resumed>) = 0 [pid 5498] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5075] <... restart_syscall resumed>) = 0 [pid 5502] <... futex resumed>) = 0 [pid 5500] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5498] <... futex resumed>) = 1 [pid 5497] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5502] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5500] <... futex resumed>) = 0 [pid 5498] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5497] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5502] <... open resumed>) = 4 [pid 5500] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5497] exit_group(0 [pid 5502] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5500] <... futex resumed>) = ? [pid 5497] <... exit_group resumed>) = ? [pid 5502] <... futex resumed>) = 1 [pid 5500] +++ exited with 0 +++ [pid 5498] <... futex resumed>) = 0 [pid 5497] +++ exited with 0 +++ [pid 5075] umount2("./22", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5502] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5498] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5497, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=16 /* 0.16 s */} --- [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5502] <... futex resumed>) = 0 [pid 5498] <... futex resumed>) = 1 [pid 5075] openat(AT_FDCWD, "./22", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5502] ioctl(4, FS_IOC_GETVERSION, 0x20000080) = 0 [pid 5502] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5502] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5075] <... openat resumed>) = 3 [pid 5498] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5075] fstat(3, [pid 5498] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5498] exit_group(0 [pid 5502] <... futex resumed>) = ? [pid 5498] <... exit_group resumed>) = ? [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5502] +++ exited with 0 +++ [pid 5076] umount2("./23", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5498] +++ exited with 0 +++ [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5498, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=17 /* 0.17 s */} --- [pid 5075] getdents64(3, [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5076] openat(AT_FDCWD, "./23", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5076] fstat(3, [pid 5075] umount2("./22/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] lstat("./22/binderfs", [pid 5076] getdents64(3, [pid 5074] umount2("./23", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5075] unlink("./22/binderfs" [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] umount2("./23/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] openat(AT_FDCWD, "./23", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] <... unlink resumed>) = 0 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] umount2("./22/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] <... openat resumed>) = 3 [pid 5076] lstat("./23/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5074] fstat(3, [pid 5076] unlink("./23/binderfs" [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] <... unlink resumed>) = 0 [pid 5074] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5076] umount2("./23/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] umount2("./23/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] lstat("./23/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5074] unlink("./23/binderfs") = 0 [ 91.896484][ T5501] REISERFS (device loop4): Using r5 hash to sort names [ 91.918565][ T5501] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [pid 5074] umount2("./23/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5501] <... mount resumed>) = 0 [pid 5501] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5501] chdir("./file0") = 0 [pid 5501] ioctl(4, LOOP_CLR_FD) = 0 [pid 5501] close(4) = 0 [pid 5501] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] <... umount2 resumed>) = 0 [pid 5501] <... futex resumed>) = 1 [pid 5501] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5495] <... futex resumed>) = 0 [pid 5495] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5501] <... futex resumed>) = 0 [pid 5501] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5495] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5077] umount2("./23/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5501] <... open resumed>) = 4 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5501] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] lstat("./23/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5501] <... futex resumed>) = 1 [pid 5077] umount2("./23/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5495] <... futex resumed>) = 0 [pid 5495] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5495] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5501] ioctl(4, FS_IOC_GETVERSION [pid 5077] openat(AT_FDCWD, "./23/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5501] <... ioctl resumed>, 0x20000080) = 0 [pid 5077] <... openat resumed>) = 4 [pid 5501] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5495] <... futex resumed>) = 0 [pid 5077] fstat(4, [pid 5495] exit_group(0) = ? [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] getdents64(4, [pid 5501] +++ exited with 0 +++ [pid 5495] +++ exited with 0 +++ [pid 5077] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5078] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5495, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=18 /* 0.18 s */} --- [pid 5077] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5077] close(4 [pid 5078] umount2("./23", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... close resumed>) = 0 [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] rmdir("./23/file0" [pid 5078] openat(AT_FDCWD, "./23", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] <... rmdir resumed>) = 0 [pid 5078] <... openat resumed>) = 3 [pid 5078] fstat(3, [pid 5077] getdents64(3, [pid 5078] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5078] getdents64(3, [pid 5077] close(3 [pid 5078] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5077] <... close resumed>) = 0 [pid 5078] umount2("./23/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] rmdir("./23" [pid 5078] lstat("./23/binderfs", [pid 5077] <... rmdir resumed>) = 0 [pid 5078] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5078] unlink("./23/binderfs" [pid 5077] mkdir("./24", 0777 [pid 5078] <... unlink resumed>) = 0 [pid 5078] umount2("./23/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... mkdir resumed>) = 0 [pid 5077] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5077] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5077] close(3) = 0 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5511 ./strace-static-x86_64: Process 5511 attached [pid 5505] <... mount resumed>) = 0 [pid 5505] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5505] chdir("./file0") = 0 [pid 5505] ioctl(4, LOOP_CLR_FD) = 0 [ 91.963021][ T5505] REISERFS (device loop5): Using r5 hash to sort names [ 91.999185][ T5505] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 5505] close(4) = 0 [pid 5505] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5504] <... futex resumed>) = 0 [pid 5505] <... futex resumed>) = 1 [pid 5504] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5504] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5511] set_robust_list(0x5555571745e0, 24 [pid 5505] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5511] <... set_robust_list resumed>) = 0 [pid 5505] <... open resumed>) = 4 [pid 5511] chdir("./24") = 0 [pid 5511] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5505] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5511] <... prctl resumed>) = 0 [pid 5505] <... futex resumed>) = 1 [pid 5504] <... futex resumed>) = 0 [pid 5511] setpgid(0, 0 [pid 5505] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5511] <... setpgid resumed>) = 0 [pid 5504] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5505] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5504] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5511] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5505] ioctl(4, FS_IOC_GETVERSION, 0x20000080) = 0 [pid 5511] <... openat resumed>) = 3 [pid 5505] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5504] <... futex resumed>) = 0 [pid 5511] write(3, "1000", 4 [pid 5505] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5504] exit_group(0 [pid 5511] <... write resumed>) = 4 [pid 5504] <... exit_group resumed>) = ? [pid 5505] <... futex resumed>) = ? [pid 5505] +++ exited with 0 +++ [pid 5504] +++ exited with 0 +++ [pid 5511] close(3 [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5504, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} --- [pid 5511] <... close resumed>) = 0 [pid 5511] symlink("/dev/binderfs", "./binderfs" [pid 5079] umount2("./22", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5511] <... symlink resumed>) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5511] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] openat(AT_FDCWD, "./22", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5511] <... futex resumed>) = 0 [pid 5079] <... openat resumed>) = 3 [pid 5075] <... umount2 resumed>) = 0 [pid 5511] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5079] fstat(3, [pid 5075] umount2("./22/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5511] <... mmap resumed>) = 0x7fdb72913000 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5511] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5079] getdents64(3, [pid 5075] lstat("./22/file0", [pid 5511] <... mprotect resumed>) = 0 [pid 5511] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5079] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5075] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] umount2("./22/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] umount2("./22/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5511] <... clone resumed>, parent_tid=[5512], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5512 [pid 5079] lstat("./22/binderfs", [pid 5075] openat(AT_FDCWD, "./22/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] <... openat resumed>) = 4 [pid 5079] unlink("./22/binderfs" [pid 5511] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5075] fstat(4, [pid 5079] <... unlink resumed>) = 0 [pid 5511] <... futex resumed>) = 0 [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5511] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5079] umount2("./22/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5075] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5075] close(4) = 0 [pid 5075] rmdir("./22/file0") = 0 [pid 5075] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5075] close(3) = 0 [pid 5075] rmdir("./22") = 0 [pid 5075] mkdir("./23", 0777) = 0 [pid 5075] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5075] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5075] close(3) = 0 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5513 [pid 5074] <... umount2 resumed>) = 0 [pid 5074] umount2("./23/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] lstat("./23/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] umount2("./23/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] openat(AT_FDCWD, "./23/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5074] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 ./strace-static-x86_64: Process 5512 attached [pid 5076] <... umount2 resumed>) = 0 [pid 5512] set_robust_list(0x7fdb729339e0, 24 [pid 5074] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5074] close(4) = 0 [pid 5074] rmdir("./23/file0" [pid 5512] <... set_robust_list resumed>) = 0 [pid 5074] <... rmdir resumed>) = 0 [pid 5074] getdents64(3, [pid 5512] memfd_create("syzkaller", 0) = 3 [pid 5074] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 5513 attached [pid 5512] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [pid 5074] close(3) = 0 [pid 5513] set_robust_list(0x5555571745e0, 24 [pid 5074] rmdir("./23" [pid 5513] <... set_robust_list resumed>) = 0 [pid 5074] <... rmdir resumed>) = 0 [pid 5513] chdir("./23") = 0 [pid 5513] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5513] setpgid(0, 0) = 0 [pid 5513] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5074] mkdir("./24", 0777) = 0 [pid 5513] <... openat resumed>) = 3 [pid 5513] write(3, "1000", 4) = 4 [pid 5513] close(3) = 0 [pid 5074] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5513] symlink("/dev/binderfs", "./binderfs" [pid 5074] <... openat resumed>) = 3 [pid 5513] <... symlink resumed>) = 0 [pid 5074] ioctl(3, LOOP_CLR_FD [pid 5513] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5074] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5513] <... futex resumed>) = 0 [pid 5074] close(3 [pid 5513] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5076] umount2("./23/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] <... close resumed>) = 0 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] lstat("./23/file0", [pid 5513] <... mmap resumed>) = 0x7fdb72913000 [pid 5076] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] umount2("./23/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5513] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] openat(AT_FDCWD, "./23/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5513] <... mprotect resumed>) = 0 [pid 5076] <... openat resumed>) = 4 [pid 5074] <... clone resumed>, child_tidptr=0x5555571745d0) = 5514 [pid 5513] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5076] fstat(4, [pid 5513] <... clone resumed>, parent_tid=[5515], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5515 [pid 5513] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5513] <... futex resumed>) = 0 [pid 5076] getdents64(4, ./strace-static-x86_64: Process 5514 attached [pid 5513] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5076] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5514] set_robust_list(0x5555571745e0, 24) = 0 [pid 5514] chdir("./24") = 0 [pid 5514] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5514] setpgid(0, 0) = 0 [pid 5514] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5514] write(3, "1000", 4 [pid 5076] getdents64(4, [pid 5514] <... write resumed>) = 4 [pid 5076] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5514] close(3 [pid 5076] close(4./strace-static-x86_64: Process 5515 attached ) = 0 [pid 5076] rmdir("./23/file0" [pid 5515] set_robust_list(0x7fdb729339e0, 24 [pid 5514] <... close resumed>) = 0 [pid 5515] <... set_robust_list resumed>) = 0 [pid 5514] symlink("/dev/binderfs", "./binderfs" [pid 5076] <... rmdir resumed>) = 0 [pid 5515] memfd_create("syzkaller", 0 [pid 5514] <... symlink resumed>) = 0 [pid 5076] getdents64(3, [pid 5515] <... memfd_create resumed>) = 3 [pid 5514] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5076] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5515] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5514] <... futex resumed>) = 0 [pid 5076] close(3 [pid 5514] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5076] <... close resumed>) = 0 [pid 5515] <... mmap resumed>) = 0x7fdb6a513000 [pid 5514] <... mmap resumed>) = 0x7fdb72913000 [pid 5514] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5076] rmdir("./23" [pid 5514] <... mprotect resumed>) = 0 [pid 5514] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5076] <... rmdir resumed>) = 0 [pid 5076] mkdir("./24", 0777 [pid 5514] <... clone resumed>, parent_tid=[5516], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5516 [pid 5514] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5076] <... mkdir resumed>) = 0 [pid 5514] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5076] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5076] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5076] close(3) = 0 ./strace-static-x86_64: Process 5516 attached [pid 5516] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5516] memfd_create("syzkaller", 0) = 3 [pid 5516] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5517 ./strace-static-x86_64: Process 5517 attached [pid 5517] set_robust_list(0x5555571745e0, 24) = 0 [pid 5517] chdir("./24") = 0 [pid 5517] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5078] <... umount2 resumed>) = 0 [pid 5517] <... prctl resumed>) = 0 [pid 5078] umount2("./23/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5517] setpgid(0, 0 [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5517] <... setpgid resumed>) = 0 [pid 5512] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5078] lstat("./23/file0", [pid 5517] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5078] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5517] <... openat resumed>) = 3 [pid 5078] umount2("./23/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5517] write(3, "1000", 4 [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5517] <... write resumed>) = 4 [pid 5078] openat(AT_FDCWD, "./23/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5517] close(3 [pid 5078] <... openat resumed>) = 4 [pid 5517] <... close resumed>) = 0 [pid 5078] fstat(4, [pid 5517] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5078] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5517] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] getdents64(4, [pid 5517] <... futex resumed>) = 0 [pid 5078] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5517] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5078] getdents64(4, [pid 5517] <... mmap resumed>) = 0x7fdb72913000 [pid 5078] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5517] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5078] close(4 [pid 5517] <... mprotect resumed>) = 0 [pid 5517] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5078] <... close resumed>) = 0 [pid 5078] rmdir("./23/file0" [pid 5517] <... clone resumed>, parent_tid=[5518], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5518 [pid 5517] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] <... rmdir resumed>) = 0 [pid 5517] <... futex resumed>) = 0 [pid 5078] getdents64(3, [pid 5517] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5078] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5078] close(3) = 0 [pid 5078] rmdir("./23"./strace-static-x86_64: Process 5518 attached ) = 0 [pid 5078] mkdir("./24", 0777 [pid 5518] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5518] memfd_create("syzkaller", 0 [pid 5078] <... mkdir resumed>) = 0 [pid 5518] <... memfd_create resumed>) = 3 [pid 5078] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5518] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5078] <... openat resumed>) = 3 [pid 5518] <... mmap resumed>) = 0x7fdb6a513000 [pid 5078] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5078] close(3) = 0 [pid 5078] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5519 ./strace-static-x86_64: Process 5519 attached [pid 5519] set_robust_list(0x5555571745e0, 24) = 0 [pid 5519] chdir("./24") = 0 [pid 5519] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5519] setpgid(0, 0) = 0 [pid 5519] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5515] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5079] <... umount2 resumed>) = 0 [pid 5519] <... openat resumed>) = 3 [pid 5519] write(3, "1000", 4 [pid 5516] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5079] umount2("./22/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5519] <... write resumed>) = 4 [pid 5519] close(3 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5519] <... close resumed>) = 0 [pid 5079] lstat("./22/file0", [pid 5519] symlink("/dev/binderfs", "./binderfs" [pid 5079] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5519] <... symlink resumed>) = 0 [pid 5079] umount2("./22/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5519] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5519] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5079] openat(AT_FDCWD, "./22/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5519] <... mmap resumed>) = 0x7fdb72913000 [pid 5079] <... openat resumed>) = 4 [pid 5519] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5079] fstat(4, [pid 5519] <... mprotect resumed>) = 0 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5519] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5079] getdents64(4, [pid 5519] <... clone resumed>, parent_tid=[5520], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5520 [pid 5079] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5519] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] getdents64(4, [pid 5519] <... futex resumed>) = 0 [pid 5512] <... write resumed>) = 4194304 [pid 5079] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 5520 attached [pid 5519] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5079] close(4 [pid 5520] set_robust_list(0x7fdb729339e0, 24 [pid 5079] <... close resumed>) = 0 [pid 5520] <... set_robust_list resumed>) = 0 [pid 5079] rmdir("./22/file0" [pid 5520] memfd_create("syzkaller", 0 [pid 5079] <... rmdir resumed>) = 0 [pid 5520] <... memfd_create resumed>) = 3 [pid 5079] getdents64(3, [pid 5520] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5512] munmap(0x7fdb6a513000, 4194304 [pid 5079] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5520] <... mmap resumed>) = 0x7fdb6a513000 [pid 5079] close(3 [pid 5518] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5079] <... close resumed>) = 0 [pid 5079] rmdir("./22") = 0 [pid 5079] mkdir("./23", 0777) = 0 [pid 5079] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5512] <... munmap resumed>) = 0 [pid 5512] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5079] <... openat resumed>) = 3 [pid 5079] ioctl(3, LOOP_CLR_FD [pid 5512] <... openat resumed>) = 4 [pid 5079] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5079] close(3 [pid 5512] ioctl(4, LOOP_SET_FD, 3 [pid 5079] <... close resumed>) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5521 [pid 5512] <... ioctl resumed>) = 0 [pid 5512] close(3./strace-static-x86_64: Process 5521 attached ) = 0 [pid 5512] mkdir("./file0", 0777 [pid 5521] set_robust_list(0x5555571745e0, 24 [pid 5512] <... mkdir resumed>) = 0 [pid 5521] <... set_robust_list resumed>) = 0 [pid 5512] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5521] chdir("./23") = 0 [pid 5521] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5521] setpgid(0, 0) = 0 [pid 5521] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5521] write(3, "1000", 4 [pid 5515] <... write resumed>) = 4194304 [ 92.438511][ T5512] loop3: detected capacity change from 0 to 8192 [pid 5521] <... write resumed>) = 4 [pid 5520] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5521] close(3) = 0 [pid 5521] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5521] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5521] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5521] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5521] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5523], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5523 [pid 5521] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5521] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5523 attached [pid 5523] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5523] memfd_create("syzkaller", 0) = 3 [pid 5523] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [pid 5515] munmap(0x7fdb6a513000, 4194304) = 0 [pid 5515] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5515] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5518] <... write resumed>) = 4194304 [ 92.492695][ T5512] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 92.513806][ T5515] loop1: detected capacity change from 0 to 8192 [pid 5518] munmap(0x7fdb6a513000, 4194304) = 0 [pid 5518] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5518] ioctl(4, LOOP_SET_FD, 3 [pid 5515] close(3) = 0 [pid 5515] mkdir("./file0", 0777) = 0 [pid 5515] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5518] <... ioctl resumed>) = 0 [pid 5516] <... write resumed>) = 4194304 [ 92.534376][ T5512] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 92.544280][ T5512] REISERFS (device loop3): using ordered data mode [ 92.548125][ T5518] loop2: detected capacity change from 0 to 8192 [ 92.551230][ T5512] reiserfs: using flush barriers [ 92.565373][ T5512] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 92.582455][ T5512] REISERFS (device loop3): checking transaction log (loop3) [pid 5520] <... write resumed>) = 4194304 [pid 5518] close(3) = 0 [pid 5518] mkdir("./file0", 0777 [pid 5520] munmap(0x7fdb6a513000, 4194304 [pid 5518] <... mkdir resumed>) = 0 [pid 5520] <... munmap resumed>) = 0 [pid 5518] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5520] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5520] ioctl(4, LOOP_SET_FD, 3 [pid 5523] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5520] <... ioctl resumed>) = 0 [pid 5516] munmap(0x7fdb6a513000, 4194304 [pid 5520] close(3) = 0 [pid 5516] <... munmap resumed>) = 0 [pid 5520] mkdir("./file0", 0777 [ 92.611339][ T5515] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 92.638238][ T5520] loop4: detected capacity change from 0 to 8192 [ 92.638555][ T5515] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [pid 5516] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5520] <... mkdir resumed>) = 0 [pid 5516] <... openat resumed>) = 4 [pid 5520] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5516] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5516] close(3) = 0 [ 92.658331][ T5518] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 92.675968][ T5518] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 92.687487][ T5516] loop0: detected capacity change from 0 to 8192 [ 92.689228][ T5515] REISERFS (device loop1): using ordered data mode [pid 5516] mkdir("./file0", 0777) = 0 [ 92.706606][ T5518] REISERFS (device loop2): using ordered data mode [ 92.714897][ T5512] REISERFS (device loop3): Using r5 hash to sort names [ 92.722532][ T5520] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 92.722591][ T5512] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 92.737279][ T5518] reiserfs: using flush barriers [ 92.746540][ T5515] reiserfs: using flush barriers [pid 5516] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5512] <... mount resumed>) = 0 [pid 5512] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5512] chdir("./file0") = 0 [pid 5512] ioctl(4, LOOP_CLR_FD) = 0 [pid 5512] close(4) = 0 [pid 5512] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5511] <... futex resumed>) = 0 [pid 5512] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5511] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5512] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5511] <... futex resumed>) = 0 [pid 5512] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5511] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5512] <... open resumed>) = 4 [pid 5512] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5511] <... futex resumed>) = 0 [pid 5512] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5511] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5512] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5511] <... futex resumed>) = 0 [pid 5512] ioctl(4, FS_IOC_GETVERSION [pid 5511] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5512] <... ioctl resumed>, 0x20000080) = 0 [pid 5512] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5511] <... futex resumed>) = 0 [pid 5512] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5511] exit_group(0 [pid 5512] <... futex resumed>) = ? [pid 5511] <... exit_group resumed>) = ? [pid 5512] +++ exited with 0 +++ [pid 5511] +++ exited with 0 +++ [pid 5523] <... write resumed>) = 4194304 [pid 5523] munmap(0x7fdb6a513000, 4194304 [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5511, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=16 /* 0.16 s */} --- [pid 5523] <... munmap resumed>) = 0 [pid 5523] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [ 92.750507][ T5516] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 92.772388][ T5520] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 92.782171][ T5515] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 92.791296][ T5516] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [pid 5523] ioctl(4, LOOP_SET_FD, 3 [pid 5077] umount2("./24", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 92.801980][ T5523] loop5: detected capacity change from 0 to 8192 [ 92.808644][ T5516] REISERFS (device loop0): using ordered data mode [ 92.821032][ T5516] reiserfs: using flush barriers [ 92.826782][ T5518] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 92.828415][ T5520] REISERFS (device loop4): using ordered data mode [ 92.850475][ T5515] REISERFS (device loop1): checking transaction log (loop1) [pid 5077] openat(AT_FDCWD, "./24", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5523] <... ioctl resumed>) = 0 [pid 5523] close(3) = 0 [pid 5523] mkdir("./file0", 0777) = 0 [pid 5523] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5077] <... openat resumed>) = 3 [pid 5077] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5077] umount2("./24/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] lstat("./24/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] unlink("./24/binderfs") = 0 [ 92.851423][ T5516] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 92.862895][ T5523] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 92.877387][ T5518] REISERFS (device loop2): checking transaction log (loop2) [ 92.929559][ T5520] reiserfs: using flush barriers [ 92.939201][ T5520] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 92.944197][ T5516] REISERFS (device loop0): checking transaction log (loop0) [ 92.956863][ T5520] REISERFS (device loop4): checking transaction log (loop4) [ 93.008361][ T5523] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 93.031563][ T5523] REISERFS (device loop5): using ordered data mode [ 93.048220][ T5523] reiserfs: using flush barriers [pid 5077] umount2("./24/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [ 93.060888][ T5523] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 93.091810][ T5520] REISERFS (device loop4): Using r5 hash to sort names [ 93.102486][ T5518] REISERFS (device loop2): Using r5 hash to sort names [pid 5077] umount2("./24/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] lstat("./24/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] umount2("./24/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] openat(AT_FDCWD, "./24/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5077] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5077] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5520] <... mount resumed>) = 0 [pid 5518] <... mount resumed>) = 0 [pid 5077] close(4 [pid 5520] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5518] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5077] <... close resumed>) = 0 [pid 5520] <... openat resumed>) = 3 [pid 5518] <... openat resumed>) = 3 [pid 5077] rmdir("./24/file0" [pid 5520] chdir("./file0" [pid 5518] chdir("./file0" [pid 5077] <... rmdir resumed>) = 0 [ 93.118610][ T5520] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 93.151045][ T5518] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 93.154139][ T5523] REISERFS (device loop5): checking transaction log (loop5) [pid 5520] <... chdir resumed>) = 0 [pid 5518] <... chdir resumed>) = 0 [pid 5077] getdents64(3, [pid 5520] ioctl(4, LOOP_CLR_FD [pid 5518] ioctl(4, LOOP_CLR_FD [pid 5077] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5520] <... ioctl resumed>) = 0 [pid 5518] <... ioctl resumed>) = 0 [pid 5077] close(3 [pid 5520] close(4 [pid 5518] close(4 [pid 5077] <... close resumed>) = 0 [pid 5520] <... close resumed>) = 0 [pid 5518] <... close resumed>) = 0 [pid 5077] rmdir("./24" [pid 5520] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5518] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] <... rmdir resumed>) = 0 [pid 5520] <... futex resumed>) = 1 [pid 5519] <... futex resumed>) = 0 [pid 5518] <... futex resumed>) = 1 [pid 5517] <... futex resumed>) = 0 [pid 5077] mkdir("./25", 0777 [pid 5520] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5519] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5518] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5517] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] <... mkdir resumed>) = 0 [pid 5520] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5519] <... futex resumed>) = 0 [pid 5518] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5517] <... futex resumed>) = 0 [pid 5077] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5520] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5519] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5518] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5077] <... openat resumed>) = 3 [pid 5520] <... open resumed>) = 4 [pid 5518] <... open resumed>) = 4 [pid 5517] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5077] ioctl(3, LOOP_CLR_FD [pid 5520] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5518] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5517] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5077] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5520] <... futex resumed>) = 1 [pid 5519] <... futex resumed>) = 0 [pid 5518] <... futex resumed>) = 0 [pid 5517] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5515] <... mount resumed>) = 0 [pid 5077] close(3 [pid 5520] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5519] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5518] ioctl(4, FS_IOC_GETVERSION [pid 5517] <... futex resumed>) = 0 [pid 5077] <... close resumed>) = 0 [pid 5520] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5519] <... futex resumed>) = 0 [pid 5518] <... ioctl resumed>, 0x20000080) = 0 [pid 5517] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5520] ioctl(4, FS_IOC_GETVERSION [pid 5519] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5518] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5517] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5520] <... ioctl resumed>, 0x20000080) = 0 [pid 5518] <... futex resumed>) = 0 [pid 5517] exit_group(0 [pid 5077] <... clone resumed>, child_tidptr=0x5555571745d0) = 5529 [pid 5520] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5517] <... exit_group resumed>) = ? [pid 5520] <... futex resumed>) = 1 [pid 5519] <... futex resumed>) = 0 [pid 5518] +++ exited with 0 +++ [pid 5520] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5519] exit_group(0 [pid 5517] +++ exited with 0 +++ [pid 5520] <... futex resumed>) = ? [pid 5519] <... exit_group resumed>) = ? [pid 5520] +++ exited with 0 +++ [pid 5519] +++ exited with 0 +++ [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5517, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=20 /* 0.20 s */} --- [pid 5076] restart_syscall(<... resuming interrupted clone ...> [pid 5078] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5519, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=17 /* 0.17 s */} --- [ 93.186851][ T5515] REISERFS (device loop1): Using r5 hash to sort names [ 93.223691][ T5515] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [pid 5076] <... restart_syscall resumed>) = 0 [pid 5078] umount2("./24", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5078] openat(AT_FDCWD, "./24", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] umount2("./24", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5078] <... openat resumed>) = 3 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5078] fstat(3, [pid 5076] openat(AT_FDCWD, "./24", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5078] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] <... openat resumed>) = 3 [pid 5078] getdents64(3, [pid 5076] fstat(3, [pid 5078] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] umount2("./24/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] getdents64(3, [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5078] lstat("./24/binderfs", [pid 5076] umount2("./24/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5078] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5515] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5078] unlink("./24/binderfs" [pid 5076] lstat("./24/binderfs", [pid 5515] <... openat resumed>) = 3 [pid 5078] <... unlink resumed>) = 0 [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 ./strace-static-x86_64: Process 5529 attached [pid 5515] chdir("./file0" [pid 5078] umount2("./24/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] unlink("./24/binderfs" [pid 5529] set_robust_list(0x5555571745e0, 24 [pid 5515] <... chdir resumed>) = 0 [pid 5076] <... unlink resumed>) = 0 [pid 5529] <... set_robust_list resumed>) = 0 [pid 5515] ioctl(4, LOOP_CLR_FD [pid 5076] umount2("./24/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5529] chdir("./25" [pid 5515] <... ioctl resumed>) = 0 [pid 5529] <... chdir resumed>) = 0 [pid 5515] close(4 [pid 5529] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5515] <... close resumed>) = 0 [pid 5529] <... prctl resumed>) = 0 [pid 5515] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5529] setpgid(0, 0 [pid 5515] <... futex resumed>) = 1 [pid 5513] <... futex resumed>) = 0 [pid 5529] <... setpgid resumed>) = 0 [pid 5515] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5513] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5529] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5515] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5513] <... futex resumed>) = 0 [pid 5529] <... openat resumed>) = 3 [pid 5515] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5513] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5529] write(3, "1000", 4 [pid 5515] <... open resumed>) = 4 [pid 5529] <... write resumed>) = 4 [pid 5515] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5515] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5529] close(3 [pid 5513] <... futex resumed>) = 0 [pid 5529] <... close resumed>) = 0 [pid 5529] symlink("/dev/binderfs", "./binderfs" [pid 5513] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5529] <... symlink resumed>) = 0 [pid 5513] <... futex resumed>) = 1 [pid 5529] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5513] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5529] <... futex resumed>) = 0 [pid 5529] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5515] <... futex resumed>) = 0 [pid 5529] <... mmap resumed>) = 0x7fdb72913000 [pid 5515] ioctl(4, FS_IOC_GETVERSION [pid 5529] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5515] <... ioctl resumed>, 0x20000080) = 0 [pid 5529] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5515] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5513] <... futex resumed>) = 0 [pid 5529] <... clone resumed>, parent_tid=[5530], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5530 [pid 5515] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [ 93.254353][ T5516] REISERFS (device loop0): Using r5 hash to sort names [ 93.262245][ T5516] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5513] exit_group(0 [pid 5529] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5515] <... futex resumed>) = ? [pid 5513] <... exit_group resumed>) = ? [pid 5529] <... futex resumed>) = 0 [pid 5515] +++ exited with 0 +++ [pid 5529] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5513] +++ exited with 0 +++ [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5513, si_uid=0, si_status=0, si_utime=0, si_stime=23 /* 0.23 s */} --- [pid 5075] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5075] umount2("./23", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5075] openat(AT_FDCWD, "./23", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 ./strace-static-x86_64: Process 5530 attached [pid 5075] fstat(3, [pid 5530] set_robust_list(0x7fdb729339e0, 24 [pid 5516] <... mount resumed>) = 0 [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5530] <... set_robust_list resumed>) = 0 [pid 5516] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5075] getdents64(3, [pid 5530] memfd_create("syzkaller", 0 [pid 5516] <... openat resumed>) = 3 [pid 5075] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5530] <... memfd_create resumed>) = 3 [pid 5516] chdir("./file0" [pid 5075] umount2("./23/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5530] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5516] <... chdir resumed>) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5516] ioctl(4, LOOP_CLR_FD [pid 5075] lstat("./23/binderfs", [pid 5516] <... ioctl resumed>) = 0 [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5516] close(4 [pid 5075] unlink("./23/binderfs" [pid 5516] <... close resumed>) = 0 [pid 5075] <... unlink resumed>) = 0 [pid 5516] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5075] umount2("./23/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5530] <... mmap resumed>) = 0x7fdb6a513000 [pid 5516] <... futex resumed>) = 1 [pid 5514] <... futex resumed>) = 0 [pid 5516] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5514] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5516] <... futex resumed>) = 0 [pid 5514] <... futex resumed>) = 1 [pid 5516] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 5516] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5514] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5516] <... futex resumed>) = 0 [pid 5514] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5516] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5514] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5516] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5514] <... futex resumed>) = 0 [pid 5516] ioctl(4, FS_IOC_GETVERSION [pid 5514] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5516] <... ioctl resumed>, 0x20000080) = 0 [pid 5516] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5514] <... futex resumed>) = 0 [pid 5516] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5514] exit_group(0 [pid 5516] <... futex resumed>) = ? [pid 5514] <... exit_group resumed>) = ? [pid 5516] +++ exited with 0 +++ [pid 5514] +++ exited with 0 +++ [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5514, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=27 /* 0.27 s */} --- [pid 5074] restart_syscall(<... resuming interrupted clone ...> [pid 5530] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5074] <... restart_syscall resumed>) = 0 [pid 5074] umount2("./24", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] openat(AT_FDCWD, "./24", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5074] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5074] umount2("./24/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] lstat("./24/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5074] unlink("./24/binderfs") = 0 [pid 5074] umount2("./24/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5078] <... umount2 resumed>) = 0 [pid 5078] umount2("./24/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5078] lstat("./24/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] <... umount2 resumed>) = 0 [pid 5074] umount2("./24/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] lstat("./24/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] umount2("./24/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] openat(AT_FDCWD, "./24/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5074] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5074] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5074] close(4 [pid 5078] umount2("./24/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] <... close resumed>) = 0 [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... umount2 resumed>) = 0 [pid 5074] rmdir("./24/file0" [pid 5078] openat(AT_FDCWD, "./24/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5074] <... rmdir resumed>) = 0 [pid 5078] <... openat resumed>) = 4 [pid 5076] <... umount2 resumed>) = 0 [pid 5074] getdents64(3, [pid 5078] fstat(4, [pid 5074] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5078] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] close(3 [pid 5078] getdents64(4, [pid 5074] <... close resumed>) = 0 [pid 5078] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5074] rmdir("./24" [pid 5530] <... write resumed>) = 4194304 [pid 5523] <... mount resumed>) = 0 [pid 5078] getdents64(4, [pid 5076] umount2("./24/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] umount2("./23/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] <... rmdir resumed>) = 0 [pid 5530] munmap(0x7fdb6a513000, 4194304 [pid 5523] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5078] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] mkdir("./25", 0777 [pid 5530] <... munmap resumed>) = 0 [pid 5523] <... openat resumed>) = 3 [pid 5078] close(4 [pid 5076] lstat("./24/file0", [pid 5075] lstat("./23/file0", [pid 5074] <... mkdir resumed>) = 0 [pid 5530] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5523] chdir("./file0" [pid 5078] <... close resumed>) = 0 [pid 5076] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5530] <... openat resumed>) = 4 [pid 5523] <... chdir resumed>) = 0 [pid 5078] rmdir("./24/file0" [pid 5076] umount2("./24/file0", MNT_DETACH|UMOUNT_NOFOLLOW [ 93.518794][ T5523] REISERFS (device loop5): Using r5 hash to sort names [ 93.534821][ T5523] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 5075] umount2("./23/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5530] ioctl(4, LOOP_SET_FD, 3 [pid 5523] ioctl(4, LOOP_CLR_FD [pid 5078] <... rmdir resumed>) = 0 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5530] <... ioctl resumed>) = 0 [pid 5523] <... ioctl resumed>) = 0 [pid 5078] getdents64(3, [pid 5076] openat(AT_FDCWD, "./24/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] openat(AT_FDCWD, "./23/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5530] close(3 [pid 5523] close(4 [pid 5078] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5076] <... openat resumed>) = 4 [pid 5075] <... openat resumed>) = 4 [pid 5530] <... close resumed>) = 0 [pid 5523] <... close resumed>) = 0 [pid 5078] close(3 [pid 5076] fstat(4, [pid 5075] fstat(4, [pid 5530] mkdir("./file0", 0777 [pid 5523] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] <... close resumed>) = 0 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5530] <... mkdir resumed>) = 0 [pid 5523] <... futex resumed>) = 1 [pid 5521] <... futex resumed>) = 0 [pid 5078] rmdir("./24" [pid 5076] getdents64(4, [pid 5075] getdents64(4, [pid 5530] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5523] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5521] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] <... rmdir resumed>) = 0 [pid 5076] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5075] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5523] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5521] <... futex resumed>) = 0 [pid 5078] mkdir("./25", 0777 [pid 5076] getdents64(4, [pid 5075] getdents64(4, [pid 5523] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5521] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5078] <... mkdir resumed>) = 0 [pid 5076] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5075] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5523] <... open resumed>) = 4 [pid 5078] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5076] close(4 [pid 5075] close(4 [pid 5523] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] <... openat resumed>) = 3 [pid 5076] <... close resumed>) = 0 [pid 5075] <... close resumed>) = 0 [pid 5523] <... futex resumed>) = 1 [pid 5521] <... futex resumed>) = 0 [pid 5078] ioctl(3, LOOP_CLR_FD [pid 5076] rmdir("./24/file0" [pid 5075] rmdir("./23/file0" [pid 5523] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5521] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5076] <... rmdir resumed>) = 0 [pid 5075] <... rmdir resumed>) = 0 [pid 5523] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5521] <... futex resumed>) = 0 [pid 5078] close(3 [pid 5076] getdents64(3, [pid 5075] getdents64(3, [pid 5523] ioctl(4, FS_IOC_GETVERSION [pid 5521] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5078] <... close resumed>) = 0 [pid 5076] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5075] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5523] <... ioctl resumed>, 0x20000080) = 0 [pid 5078] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] close(3 [pid 5075] close(3 [pid 5523] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5076] <... close resumed>) = 0 [pid 5075] <... close resumed>) = 0 [pid 5523] <... futex resumed>) = 1 [pid 5521] <... futex resumed>) = 0 [pid 5078] <... clone resumed>, child_tidptr=0x5555571745d0) = 5532 [pid 5076] rmdir("./24" [pid 5075] rmdir("./23" [pid 5523] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5521] exit_group(0 [pid 5076] <... rmdir resumed>) = 0 [pid 5075] <... rmdir resumed>) = 0 [pid 5523] <... futex resumed>) = ? [pid 5521] <... exit_group resumed>) = ? [pid 5076] mkdir("./25", 0777 [pid 5075] mkdir("./24", 0777 [pid 5523] +++ exited with 0 +++ [pid 5521] +++ exited with 0 +++ [pid 5076] <... mkdir resumed>) = 0 [pid 5075] <... mkdir resumed>) = 0 [pid 5074] <... openat resumed>) = 3 [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5521, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=20 /* 0.20 s */} --- [pid 5076] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5075] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5074] ioctl(3, LOOP_CLR_FD [pid 5076] <... openat resumed>) = 3 [pid 5075] <... openat resumed>) = 3 [pid 5074] <... ioctl resumed>) = -1 ENXIO (No such device or address) ./strace-static-x86_64: Process 5532 attached [pid 5076] ioctl(3, LOOP_CLR_FD [pid 5075] ioctl(3, LOOP_CLR_FD [ 93.573642][ T5530] loop3: detected capacity change from 0 to 8192 [ 93.606125][ T5530] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5074] close(3 [pid 5532] set_robust_list(0x5555571745e0, 24 [pid 5079] umount2("./23", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5075] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5074] <... close resumed>) = 0 [pid 5532] <... set_robust_list resumed>) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] close(3 [pid 5075] close(3 [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5532] chdir("./25" [pid 5079] openat(AT_FDCWD, "./23", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] <... close resumed>) = 0 [pid 5075] <... close resumed>) = 0 [pid 5532] <... chdir resumed>) = 0 [pid 5079] <... openat resumed>) = 3 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5074] <... clone resumed>, child_tidptr=0x5555571745d0) = 5533 [pid 5532] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5079] fstat(3, [pid 5532] <... prctl resumed>) = 0 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] <... clone resumed>, child_tidptr=0x5555571745d0) = 5534 [pid 5075] <... clone resumed>, child_tidptr=0x5555571745d0) = 5535 [pid 5532] setpgid(0, 0 [pid 5079] getdents64(3, ./strace-static-x86_64: Process 5533 attached [pid 5532] <... setpgid resumed>) = 0 [pid 5079] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5533] set_robust_list(0x5555571745e0, 24 [pid 5532] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5079] umount2("./23/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5535 attached ./strace-static-x86_64: Process 5534 attached [pid 5533] <... set_robust_list resumed>) = 0 [pid 5532] <... openat resumed>) = 3 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5535] set_robust_list(0x5555571745e0, 24 [pid 5534] set_robust_list(0x5555571745e0, 24 [pid 5533] chdir("./25" [pid 5532] write(3, "1000", 4 [pid 5079] lstat("./23/binderfs", [pid 5535] <... set_robust_list resumed>) = 0 [pid 5534] <... set_robust_list resumed>) = 0 [pid 5533] <... chdir resumed>) = 0 [pid 5532] <... write resumed>) = 4 [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5535] chdir("./24" [pid 5534] chdir("./25" [pid 5533] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5532] close(3 [pid 5079] unlink("./23/binderfs" [pid 5535] <... chdir resumed>) = 0 [pid 5534] <... chdir resumed>) = 0 [pid 5533] <... prctl resumed>) = 0 [pid 5532] <... close resumed>) = 0 [pid 5079] <... unlink resumed>) = 0 [pid 5535] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5534] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5533] setpgid(0, 0 [pid 5532] symlink("/dev/binderfs", "./binderfs" [ 93.638710][ T5530] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [pid 5079] umount2("./23/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5535] <... prctl resumed>) = 0 [pid 5534] <... prctl resumed>) = 0 [pid 5533] <... setpgid resumed>) = 0 [pid 5532] <... symlink resumed>) = 0 [pid 5535] setpgid(0, 0 [pid 5534] setpgid(0, 0 [pid 5533] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5532] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5535] <... setpgid resumed>) = 0 [pid 5534] <... setpgid resumed>) = 0 [pid 5533] <... openat resumed>) = 3 [pid 5532] <... futex resumed>) = 0 [pid 5535] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5534] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5533] write(3, "1000", 4 [pid 5532] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5535] <... openat resumed>) = 3 [pid 5534] <... openat resumed>) = 3 [pid 5533] <... write resumed>) = 4 [pid 5532] <... mmap resumed>) = 0x7fdb72913000 [pid 5535] write(3, "1000", 4 [pid 5534] write(3, "1000", 4 [pid 5533] close(3 [pid 5532] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5535] <... write resumed>) = 4 [pid 5534] <... write resumed>) = 4 [pid 5533] <... close resumed>) = 0 [pid 5532] <... mprotect resumed>) = 0 [pid 5535] close(3 [pid 5534] close(3 [pid 5533] symlink("/dev/binderfs", "./binderfs" [pid 5532] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5535] <... close resumed>) = 0 [pid 5534] <... close resumed>) = 0 [pid 5533] <... symlink resumed>) = 0 [pid 5535] symlink("/dev/binderfs", "./binderfs" [pid 5534] symlink("/dev/binderfs", "./binderfs" [pid 5533] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5532] <... clone resumed>, parent_tid=[5536], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5536 [pid 5535] <... symlink resumed>) = 0 [pid 5534] <... symlink resumed>) = 0 [pid 5533] <... futex resumed>) = 0 [pid 5532] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5535] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5534] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5533] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5532] <... futex resumed>) = 0 [pid 5535] <... futex resumed>) = 0 [pid 5534] <... futex resumed>) = 0 [pid 5533] <... mmap resumed>) = 0x7fdb72913000 [pid 5532] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5535] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5534] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5533] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5535] <... mmap resumed>) = 0x7fdb72913000 [pid 5534] <... mmap resumed>) = 0x7fdb72913000 [pid 5533] <... mprotect resumed>) = 0 [pid 5535] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5534] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5533] clone(child_stack=0x7fdb729333f0, 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 5536 attached [pid 5535] <... mprotect resumed>) = 0 [pid 5534] <... mprotect resumed>) = 0 [pid 5536] set_robust_list(0x7fdb729339e0, 24 [pid 5535] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5534] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5533] <... clone resumed>, parent_tid=[5537], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5537 [pid 5536] <... set_robust_list resumed>) = 0 [pid 5533] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5536] memfd_create("syzkaller", 0 [pid 5535] <... clone resumed>, parent_tid=[5538], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5538 [pid 5534] <... clone resumed>, parent_tid=[5539], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5539 [pid 5533] <... futex resumed>) = 0 [pid 5536] <... memfd_create resumed>) = 3 [pid 5535] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5534] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5533] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5536] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5535] <... futex resumed>) = 0 [pid 5534] <... futex resumed>) = 0 [pid 5536] <... mmap resumed>) = 0x7fdb6a513000 [pid 5535] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5534] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5539 attached ./strace-static-x86_64: Process 5538 attached ./strace-static-x86_64: Process 5537 attached [pid 5539] set_robust_list(0x7fdb729339e0, 24 [pid 5538] set_robust_list(0x7fdb729339e0, 24 [pid 5537] set_robust_list(0x7fdb729339e0, 24 [pid 5539] <... set_robust_list resumed>) = 0 [pid 5538] <... set_robust_list resumed>) = 0 [pid 5537] <... set_robust_list resumed>) = 0 [pid 5539] memfd_create("syzkaller", 0 [pid 5538] memfd_create("syzkaller", 0 [pid 5537] memfd_create("syzkaller", 0 [pid 5539] <... memfd_create resumed>) = 3 [pid 5538] <... memfd_create resumed>) = 3 [pid 5537] <... memfd_create resumed>) = 3 [pid 5539] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5538] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5537] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5539] <... mmap resumed>) = 0x7fdb6a513000 [ 93.683830][ T5530] REISERFS (device loop3): using ordered data mode [ 93.690872][ T5530] reiserfs: using flush barriers [ 93.698762][ T5530] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 93.720437][ T5530] REISERFS (device loop3): checking transaction log (loop3) [pid 5538] <... mmap resumed>) = 0x7fdb6a513000 [pid 5537] <... mmap resumed>) = 0x7fdb6a513000 [pid 5536] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5530] <... mount resumed>) = 0 [pid 5530] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5530] chdir("./file0") = 0 [pid 5530] ioctl(4, LOOP_CLR_FD) = 0 [pid 5530] close(4) = 0 [pid 5530] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5529] <... futex resumed>) = 0 [ 93.784231][ T5530] REISERFS (device loop3): Using r5 hash to sort names [ 93.791412][ T5530] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [pid 5537] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5530] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5529] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5530] <... open resumed>) = 4 [pid 5529] <... futex resumed>) = 0 [pid 5530] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5529] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5530] <... futex resumed>) = 0 [pid 5529] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5530] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5529] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5530] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5529] <... futex resumed>) = 0 [pid 5530] ioctl(4, FS_IOC_GETVERSION [pid 5529] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5530] <... ioctl resumed>, 0x20000080) = 0 [pid 5539] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5530] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5538] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5530] <... futex resumed>) = 1 [pid 5529] <... futex resumed>) = 0 [pid 5530] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5529] exit_group(0 [pid 5530] <... futex resumed>) = ? [pid 5529] <... exit_group resumed>) = ? [pid 5530] +++ exited with 0 +++ [pid 5529] +++ exited with 0 +++ [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5529, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=15 /* 0.15 s */} --- [pid 5077] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5077] umount2("./25", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] openat(AT_FDCWD, "./25", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5077] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5077] umount2("./25/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] lstat("./25/binderfs", [pid 5079] <... umount2 resumed>) = 0 [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] unlink("./25/binderfs") = 0 [pid 5077] umount2("./25/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5536] <... write resumed>) = 4194304 [pid 5536] munmap(0x7fdb6a513000, 4194304) = 0 [pid 5536] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5536] ioctl(4, LOOP_SET_FD, 3 [pid 5079] umount2("./23/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] lstat("./23/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] umount2("./23/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./23/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5079] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5079] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5079] close(4) = 0 [pid 5079] rmdir("./23/file0") = 0 [pid 5537] <... write resumed>) = 4194304 [pid 5079] getdents64(3, [pid 5536] <... ioctl resumed>) = 0 [pid 5079] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5536] close(3 [pid 5079] close(3) = 0 [pid 5536] <... close resumed>) = 0 [pid 5079] rmdir("./23" [pid 5536] mkdir("./file0", 0777 [pid 5079] <... rmdir resumed>) = 0 [pid 5079] mkdir("./24", 0777 [pid 5537] munmap(0x7fdb6a513000, 4194304 [pid 5536] <... mkdir resumed>) = 0 [pid 5079] <... mkdir resumed>) = 0 [pid 5536] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5079] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5537] <... munmap resumed>) = 0 [pid 5079] <... openat resumed>) = 3 [pid 5079] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5079] close(3) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5541 ./strace-static-x86_64: Process 5541 attached [ 93.938885][ T5536] loop4: detected capacity change from 0 to 8192 [pid 5537] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5541] set_robust_list(0x5555571745e0, 24) = 0 [pid 5541] chdir("./24") = 0 [pid 5541] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5541] setpgid(0, 0) = 0 [pid 5541] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5541] write(3, "1000", 4) = 4 [pid 5541] close(3) = 0 [pid 5541] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5541] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5541] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5541] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5541] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5542], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5542 [pid 5541] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5541] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5537] <... openat resumed>) = 4 [pid 5537] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5537] close(3) = 0 [pid 5537] mkdir("./file0", 0777) = 0 [ 93.989714][ T5536] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 94.004639][ T5537] loop0: detected capacity change from 0 to 8192 [pid 5537] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC, ""./strace-static-x86_64: Process 5542 attached [pid 5539] <... write resumed>) = 4194304 [pid 5542] set_robust_list(0x7fdb729339e0, 24 [pid 5539] munmap(0x7fdb6a513000, 4194304) = 0 [pid 5542] <... set_robust_list resumed>) = 0 [pid 5542] memfd_create("syzkaller", 0 [pid 5539] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5542] <... memfd_create resumed>) = 3 [pid 5539] <... openat resumed>) = 4 [pid 5542] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5539] ioctl(4, LOOP_SET_FD, 3 [pid 5542] <... mmap resumed>) = 0x7fdb6a513000 [pid 5077] <... umount2 resumed>) = 0 [pid 5077] umount2("./25/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] lstat("./25/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] umount2("./25/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] openat(AT_FDCWD, "./25/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5077] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5077] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5077] close(4) = 0 [pid 5539] <... ioctl resumed>) = 0 [pid 5077] rmdir("./25/file0") = 0 [pid 5539] close(3 [pid 5538] <... write resumed>) = 4194304 [pid 5077] getdents64(3, [pid 5539] <... close resumed>) = 0 [pid 5077] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5538] munmap(0x7fdb6a513000, 4194304 [pid 5077] close(3 [pid 5539] mkdir("./file0", 0777 [pid 5077] <... close resumed>) = 0 [pid 5538] <... munmap resumed>) = 0 [ 94.038532][ T5537] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 94.059878][ T5539] loop2: detected capacity change from 0 to 8192 [ 94.074661][ T5536] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [pid 5077] rmdir("./25" [pid 5539] <... mkdir resumed>) = 0 [pid 5538] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5077] <... rmdir resumed>) = 0 [pid 5077] mkdir("./26", 0777 [pid 5538] ioctl(4, LOOP_SET_FD, 3 [pid 5539] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5077] <... mkdir resumed>) = 0 [pid 5077] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5538] <... ioctl resumed>) = 0 [pid 5077] ioctl(3, LOOP_CLR_FD [pid 5538] close(3 [pid 5077] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5538] <... close resumed>) = 0 [pid 5538] mkdir("./file0", 0777 [pid 5077] close(3) = 0 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5544 [pid 5538] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 5544 attached [pid 5542] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [ 94.103208][ T5538] loop1: detected capacity change from 0 to 8192 [ 94.123649][ T5537] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 94.134742][ T5539] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5538] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5544] set_robust_list(0x5555571745e0, 24) = 0 [pid 5544] chdir("./26") = 0 [pid 5544] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [ 94.137771][ T5536] REISERFS (device loop4): using ordered data mode [ 94.153428][ T5537] REISERFS (device loop0): using ordered data mode [ 94.163439][ T5539] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 94.164753][ T5537] reiserfs: using flush barriers [ 94.174214][ T5539] REISERFS (device loop2): using ordered data mode [ 94.183173][ T5536] reiserfs: using flush barriers [ 94.184542][ T5537] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 94.205697][ T5539] reiserfs: using flush barriers [ 94.207111][ T5536] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 94.228341][ T5538] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5544] setpgid(0, 0) = 0 [pid 5544] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5544] write(3, "1000", 4) = 4 [pid 5544] close(3) = 0 [pid 5544] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5544] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5544] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5544] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [ 94.234161][ T5539] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 94.241365][ T5538] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 94.241460][ T5538] REISERFS (device loop1): using ordered data mode [ 94.273963][ T5538] reiserfs: using flush barriers [ 94.280863][ T5538] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5544] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5542] <... write resumed>) = 4194304 [pid 5544] <... clone resumed>, parent_tid=[5547], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5547 [pid 5544] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5544] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5542] munmap(0x7fdb6a513000, 4194304) = 0 ./strace-static-x86_64: Process 5547 attached [pid 5542] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5547] set_robust_list(0x7fdb729339e0, 24 [pid 5542] <... openat resumed>) = 4 [pid 5547] <... set_robust_list resumed>) = 0 [pid 5542] ioctl(4, LOOP_SET_FD, 3 [pid 5547] memfd_create("syzkaller", 0 [pid 5542] <... ioctl resumed>) = 0 [pid 5542] close(3) = 0 [pid 5542] mkdir("./file0", 0777) = 0 [pid 5542] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5547] <... memfd_create resumed>) = 3 [ 94.297967][ T5538] REISERFS (device loop1): checking transaction log (loop1) [ 94.306563][ T5537] REISERFS (device loop0): checking transaction log (loop0) [ 94.318457][ T5536] REISERFS (device loop4): checking transaction log (loop4) [ 94.322461][ T5542] loop5: detected capacity change from 0 to 8192 [pid 5547] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [ 94.361261][ T5539] REISERFS (device loop2): checking transaction log (loop2) [ 94.395770][ T5542] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 94.443640][ T5542] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 94.453107][ T5542] REISERFS (device loop5): using ordered data mode [ 94.460288][ T5542] reiserfs: using flush barriers [ 94.467094][ T5542] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5547] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304) = 4194304 [ 94.489172][ T5536] REISERFS (device loop4): Using r5 hash to sort names [pid 5547] munmap(0x7fdb6a513000, 4194304) = 0 [pid 5547] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 5547] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5547] close(3) = 0 [pid 5536] <... mount resumed>) = 0 [ 94.519749][ T5542] REISERFS (device loop5): checking transaction log (loop5) [ 94.541443][ T5536] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 94.550821][ T5547] loop3: detected capacity change from 0 to 8192 [pid 5547] mkdir("./file0", 0777 [pid 5536] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5547] <... mkdir resumed>) = 0 [pid 5547] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5536] <... openat resumed>) = 3 [pid 5536] chdir("./file0" [pid 5538] <... mount resumed>) = 0 [ 94.582607][ T5538] REISERFS (device loop1): Using r5 hash to sort names [ 94.601524][ T5538] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 94.612396][ T5547] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 94.612453][ T5537] REISERFS (device loop0): Using r5 hash to sort names [pid 5538] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5536] <... chdir resumed>) = 0 [pid 5538] <... openat resumed>) = 3 [pid 5536] ioctl(4, LOOP_CLR_FD [pid 5538] chdir("./file0") = 0 [pid 5536] <... ioctl resumed>) = 0 [pid 5538] ioctl(4, LOOP_CLR_FD [ 94.632700][ T5542] REISERFS (device loop5): Using r5 hash to sort names [ 94.641602][ T5542] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 94.652151][ T5547] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 94.654496][ T5537] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 94.662279][ T5547] REISERFS (device loop3): using ordered data mode [ 94.677383][ T5547] reiserfs: using flush barriers [pid 5536] close(4 [pid 5538] <... ioctl resumed>) = 0 [pid 5536] <... close resumed>) = 0 [pid 5538] close(4 [pid 5536] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5538] <... close resumed>) = 0 [pid 5536] <... futex resumed>) = 1 [pid 5532] <... futex resumed>) = 0 [pid 5538] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5536] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5532] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5538] <... futex resumed>) = 1 [pid 5536] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5532] <... futex resumed>) = 0 [pid 5538] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5536] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5535] <... futex resumed>) = 0 [pid 5532] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5536] <... open resumed>) = 4 [pid 5536] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5532] <... futex resumed>) = 0 [pid 5536] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5532] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5536] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5532] <... futex resumed>) = 0 [pid 5536] ioctl(4, FS_IOC_GETVERSION [pid 5532] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5536] <... ioctl resumed>, 0x20000080) = 0 [pid 5536] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5532] <... futex resumed>) = 0 [ 94.684336][ T5547] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 94.701713][ T5547] REISERFS (device loop3): checking transaction log (loop3) [pid 5536] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5532] exit_group(0 [pid 5542] <... mount resumed>) = 0 [pid 5537] <... mount resumed>) = 0 [pid 5535] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5542] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5538] <... futex resumed>) = 0 [pid 5537] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5536] <... futex resumed>) = ? [pid 5535] <... futex resumed>) = 1 [pid 5532] <... exit_group resumed>) = ? [pid 5542] <... openat resumed>) = 3 [pid 5538] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5537] <... openat resumed>) = 3 [pid 5536] +++ exited with 0 +++ [pid 5532] +++ exited with 0 +++ [pid 5538] <... open resumed>) = 4 [pid 5538] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5538] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5535] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5542] chdir("./file0" [pid 5537] chdir("./file0" [pid 5535] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5542] <... chdir resumed>) = 0 [pid 5539] <... mount resumed>) = 0 [pid 5537] <... chdir resumed>) = 0 [pid 5535] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5532, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=19 /* 0.19 s */} --- [pid 5542] ioctl(4, LOOP_CLR_FD [pid 5539] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5538] <... futex resumed>) = 0 [pid 5537] ioctl(4, LOOP_CLR_FD [pid 5535] <... futex resumed>) = 1 [pid 5078] umount2("./25", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5542] <... ioctl resumed>) = 0 [pid 5539] <... openat resumed>) = 3 [pid 5538] ioctl(4, FS_IOC_GETVERSION [pid 5537] <... ioctl resumed>) = 0 [pid 5535] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5542] close(4 [pid 5539] chdir("./file0" [pid 5538] <... ioctl resumed>, 0x20000080) = 0 [pid 5537] close(4 [pid 5078] openat(AT_FDCWD, "./25", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5542] <... close resumed>) = 0 [pid 5539] <... chdir resumed>) = 0 [pid 5538] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5537] <... close resumed>) = 0 [pid 5078] <... openat resumed>) = 3 [pid 5542] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5539] ioctl(4, LOOP_CLR_FD [pid 5538] <... futex resumed>) = 1 [pid 5537] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5535] <... futex resumed>) = 0 [pid 5078] fstat(3, [pid 5542] <... futex resumed>) = 1 [pid 5541] <... futex resumed>) = 0 [pid 5539] <... ioctl resumed>) = 0 [pid 5538] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5537] <... futex resumed>) = 1 [pid 5535] exit_group(0 [pid 5533] <... futex resumed>) = 0 [pid 5078] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [ 94.732321][ T5539] REISERFS (device loop2): Using r5 hash to sort names [ 94.748458][ T5539] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 5542] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5541] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5539] close(4 [pid 5538] <... futex resumed>) = ? [pid 5537] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5535] <... exit_group resumed>) = ? [pid 5533] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] getdents64(3, [pid 5542] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5541] <... futex resumed>) = 0 [pid 5539] <... close resumed>) = 0 [pid 5538] +++ exited with 0 +++ [pid 5537] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5535] +++ exited with 0 +++ [pid 5533] <... futex resumed>) = 0 [pid 5078] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5542] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5541] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5539] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5537] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5533] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5078] umount2("./25/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5542] <... open resumed>) = 4 [pid 5539] <... futex resumed>) = 1 [pid 5537] <... open resumed>) = 4 [pid 5534] <... futex resumed>) = 0 [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5535, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=17 /* 0.17 s */} --- [pid 5542] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5539] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5537] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5534] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] lstat("./25/binderfs", [pid 5075] umount2("./24", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5542] <... futex resumed>) = 1 [pid 5541] <... futex resumed>) = 0 [pid 5539] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5537] <... futex resumed>) = 1 [pid 5534] <... futex resumed>) = 0 [pid 5533] <... futex resumed>) = 0 [pid 5078] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5542] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5541] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5539] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5537] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5534] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5533] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] unlink("./25/binderfs" [pid 5075] openat(AT_FDCWD, "./24", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5542] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5541] <... futex resumed>) = 0 [pid 5539] <... open resumed>) = 4 [pid 5537] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5533] <... futex resumed>) = 0 [pid 5078] <... unlink resumed>) = 0 [pid 5075] <... openat resumed>) = 3 [pid 5542] ioctl(4, FS_IOC_GETVERSION [pid 5541] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5539] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5537] ioctl(4, FS_IOC_GETVERSION [pid 5533] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5078] umount2("./25/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] fstat(3, [pid 5542] <... ioctl resumed>, 0x20000080) = 0 [pid 5539] <... futex resumed>) = 1 [pid 5537] <... ioctl resumed>, 0x20000080) = 0 [pid 5534] <... futex resumed>) = 0 [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5542] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5539] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5537] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5534] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5075] getdents64(3, [pid 5542] <... futex resumed>) = 1 [pid 5541] <... futex resumed>) = 0 [pid 5539] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5537] <... futex resumed>) = 1 [pid 5534] <... futex resumed>) = 0 [pid 5533] <... futex resumed>) = 0 [pid 5075] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5542] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5541] exit_group(0 [pid 5539] ioctl(4, FS_IOC_GETVERSION [pid 5537] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5534] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5533] exit_group(0 [pid 5075] umount2("./24/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5542] <... futex resumed>) = ? [pid 5541] <... exit_group resumed>) = ? [pid 5539] <... ioctl resumed>, 0x20000080) = 0 [pid 5537] <... futex resumed>) = ? [pid 5533] <... exit_group resumed>) = ? [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5542] +++ exited with 0 +++ [pid 5541] +++ exited with 0 +++ [pid 5539] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5537] +++ exited with 0 +++ [pid 5533] +++ exited with 0 +++ [pid 5075] lstat("./24/binderfs", [pid 5539] <... futex resumed>) = 1 [pid 5534] <... futex resumed>) = 0 [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5541, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5539] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5534] exit_group(0 [pid 5075] unlink("./24/binderfs" [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5533, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=14 /* 0.14 s */} --- [pid 5539] <... futex resumed>) = ? [pid 5534] <... exit_group resumed>) = ? [pid 5075] <... unlink resumed>) = 0 [pid 5539] +++ exited with 0 +++ [pid 5534] +++ exited with 0 +++ [pid 5079] umount2("./24", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] umount2("./24/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./24", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5534, si_uid=0, si_status=0, si_utime=0, si_stime=21 /* 0.21 s */} --- [pid 5079] <... openat resumed>) = 3 [pid 5076] restart_syscall(<... resuming interrupted clone ...> [pid 5079] fstat(3, [pid 5076] <... restart_syscall resumed>) = 0 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5076] umount2("./25", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] umount2("./24/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] openat(AT_FDCWD, "./25", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5074] umount2("./25", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] lstat("./24/binderfs", [pid 5076] <... openat resumed>) = 3 [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] fstat(3, [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] unlink("./24/binderfs" [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] <... unlink resumed>) = 0 [pid 5076] getdents64(3, [pid 5074] openat(AT_FDCWD, "./25", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] umount2("./24/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5076] umount2("./25/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] <... openat resumed>) = 3 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] fstat(3, [pid 5076] lstat("./25/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] unlink("./25/binderfs" [pid 5547] <... mount resumed>) = 0 [pid 5076] <... unlink resumed>) = 0 [pid 5074] getdents64(3, [pid 5547] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5076] umount2("./25/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5547] <... openat resumed>) = 3 [pid 5547] chdir("./file0" [pid 5074] umount2("./25/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5547] <... chdir resumed>) = 0 [pid 5547] ioctl(4, LOOP_CLR_FD [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5547] <... ioctl resumed>) = 0 [pid 5074] lstat("./25/binderfs", [pid 5547] close(4 [pid 5074] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5547] <... close resumed>) = 0 [pid 5074] unlink("./25/binderfs") = 0 [pid 5547] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5074] umount2("./25/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5547] <... futex resumed>) = 1 [pid 5544] <... futex resumed>) = 0 [ 94.824955][ T5547] REISERFS (device loop3): Using r5 hash to sort names [ 94.844335][ T5547] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [pid 5547] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5544] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5547] <... open resumed>) = 4 [pid 5544] <... futex resumed>) = 0 [pid 5544] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5547] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5544] <... futex resumed>) = 0 [pid 5544] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5544] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5076] <... umount2 resumed>) = 0 [pid 5076] umount2("./25/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5076] lstat("./25/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] umount2("./25/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5547] ioctl(4, FS_IOC_GETVERSION [pid 5076] openat(AT_FDCWD, "./25/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5076] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5076] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5076] close(4) = 0 [pid 5076] rmdir("./25/file0" [pid 5547] <... ioctl resumed>, 0x20000080) = 0 [pid 5076] <... rmdir resumed>) = 0 [pid 5076] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5076] close(3) = 0 [pid 5076] rmdir("./25" [pid 5547] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5076] <... rmdir resumed>) = 0 [pid 5547] <... futex resumed>) = 1 [pid 5544] <... futex resumed>) = 0 [pid 5076] mkdir("./26", 0777 [pid 5547] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5544] exit_group(0 [pid 5547] <... futex resumed>) = ? [pid 5544] <... exit_group resumed>) = ? [pid 5076] <... mkdir resumed>) = 0 [pid 5076] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5076] ioctl(3, LOOP_CLR_FD) = 0 [pid 5076] close(3) = 0 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5547] +++ exited with 0 +++ [pid 5544] +++ exited with 0 +++ [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5544, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=21 /* 0.21 s */} --- [pid 5076] <... clone resumed>, child_tidptr=0x5555571745d0) = 5550 [pid 5077] umount2("./26", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] openat(AT_FDCWD, "./26", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5077] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5077] umount2("./26/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] lstat("./26/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] unlink("./26/binderfs") = 0 [pid 5077] umount2("./26/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5550 attached [pid 5550] set_robust_list(0x5555571745e0, 24) = 0 [pid 5550] chdir("./26") = 0 [pid 5550] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5550] setpgid(0, 0) = 0 [pid 5550] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5550] write(3, "1000", 4) = 4 [pid 5550] close(3) = 0 [pid 5550] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5550] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5550] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5550] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5550] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5551], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5551 [pid 5550] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5550] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5551 attached [pid 5551] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5551] memfd_create("syzkaller", 0) = 3 [pid 5551] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [pid 5075] <... umount2 resumed>) = 0 [pid 5075] umount2("./24/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5075] lstat("./24/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] umount2("./24/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5075] openat(AT_FDCWD, "./24/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5078] <... umount2 resumed>) = 0 [pid 5075] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5075] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5075] close(4) = 0 [pid 5075] rmdir("./24/file0") = 0 [pid 5075] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5075] close(3) = 0 [pid 5075] rmdir("./24") = 0 [pid 5078] umount2("./25/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5078] lstat("./25/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] umount2("./25/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5078] openat(AT_FDCWD, "./25/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] mkdir("./25", 0777 [pid 5078] <... openat resumed>) = 4 [pid 5075] <... mkdir resumed>) = 0 [pid 5078] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5078] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5078] close(4) = 0 [pid 5075] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5078] rmdir("./25/file0" [pid 5075] <... openat resumed>) = 3 [pid 5078] <... rmdir resumed>) = 0 [pid 5075] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5075] close(3) = 0 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5078] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5078] close(3) = 0 [pid 5078] rmdir("./25") = 0 [pid 5075] <... clone resumed>, child_tidptr=0x5555571745d0) = 5552 [pid 5078] mkdir("./26", 0777) = 0 [pid 5078] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 ./strace-static-x86_64: Process 5552 attached [pid 5078] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5552] set_robust_list(0x5555571745e0, 24) = 0 [pid 5552] chdir("./25" [pid 5078] close(3) = 0 [pid 5078] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5552] <... chdir resumed>) = 0 [pid 5552] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5552] setpgid(0, 0) = 0 [pid 5552] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5552] write(3, "1000", 4) = 4 [pid 5552] close(3) = 0 ./strace-static-x86_64: Process 5553 attached [pid 5552] symlink("/dev/binderfs", "./binderfs" [pid 5551] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5078] <... clone resumed>, child_tidptr=0x5555571745d0) = 5553 [pid 5552] <... symlink resumed>) = 0 [pid 5552] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5552] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5552] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5553] set_robust_list(0x5555571745e0, 24 [pid 5552] <... mprotect resumed>) = 0 [pid 5553] <... set_robust_list resumed>) = 0 [pid 5552] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5554], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5554 [pid 5552] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5553] chdir("./26" [pid 5552] <... futex resumed>) = 0 [pid 5553] <... chdir resumed>) = 0 [pid 5552] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5553] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5553] setpgid(0, 0./strace-static-x86_64: Process 5554 attached ) = 0 [pid 5554] set_robust_list(0x7fdb729339e0, 24 [pid 5553] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5554] <... set_robust_list resumed>) = 0 [pid 5553] <... openat resumed>) = 3 [pid 5554] memfd_create("syzkaller", 0 [pid 5553] write(3, "1000", 4 [pid 5554] <... memfd_create resumed>) = 3 [pid 5553] <... write resumed>) = 4 [pid 5079] <... umount2 resumed>) = 0 [pid 5554] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5553] close(3 [pid 5554] <... mmap resumed>) = 0x7fdb6a513000 [pid 5553] <... close resumed>) = 0 [pid 5553] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5074] <... umount2 resumed>) = 0 [pid 5553] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5074] umount2("./25/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] umount2("./24/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] lstat("./24/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] umount2("./24/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5553] <... futex resumed>) = 0 [pid 5553] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5079] openat(AT_FDCWD, "./24/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5079] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5553] <... mmap resumed>) = 0x7fdb72913000 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5553] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5079] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5079] getdents64(4, [pid 5553] <... mprotect resumed>) = 0 [pid 5079] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5074] lstat("./25/file0", [pid 5079] close(4) = 0 [pid 5079] rmdir("./24/file0") = 0 [pid 5074] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5553] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5079] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5079] close(3) = 0 [pid 5079] rmdir("./24") = 0 [pid 5074] umount2("./25/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5553] <... clone resumed>, parent_tid=[5555], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5555 [pid 5079] mkdir("./25", 0777 [pid 5553] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] <... mkdir resumed>) = 0 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5553] <... futex resumed>) = 0 [pid 5079] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5074] openat(AT_FDCWD, "./25/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5553] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5079] <... openat resumed>) = 3 [pid 5079] ioctl(3, LOOP_CLR_FD [pid 5074] <... openat resumed>) = 4 [pid 5079] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5074] fstat(4, [pid 5079] close(3./strace-static-x86_64: Process 5555 attached ) = 0 [pid 5077] <... umount2 resumed>) = 0 [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5555] set_robust_list(0x7fdb729339e0, 24 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] umount2("./26/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5555] <... set_robust_list resumed>) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] getdents64(4, [pid 5079] <... clone resumed>, child_tidptr=0x5555571745d0) = 5556 [pid 5074] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5555] memfd_create("syzkaller", 0 [pid 5074] getdents64(4, [pid 5555] <... memfd_create resumed>) = 3 [pid 5077] lstat("./26/file0", [pid 5074] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5555] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5077] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] close(4 [pid 5555] <... mmap resumed>) = 0x7fdb6a513000 [pid 5077] umount2("./26/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] <... close resumed>) = 0 [pid 5074] rmdir("./25/file0") = 0 [pid 5074] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5074] close(3 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] <... close resumed>) = 0 ./strace-static-x86_64: Process 5556 attached [pid 5077] openat(AT_FDCWD, "./26/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5074] rmdir("./25" [pid 5556] set_robust_list(0x5555571745e0, 24 [pid 5551] <... write resumed>) = 4194304 [pid 5077] <... openat resumed>) = 4 [pid 5074] <... rmdir resumed>) = 0 [pid 5556] <... set_robust_list resumed>) = 0 [pid 5077] fstat(4, [pid 5074] mkdir("./26", 0777 [pid 5556] chdir("./25" [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5556] <... chdir resumed>) = 0 [pid 5556] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5074] <... mkdir resumed>) = 0 [pid 5077] getdents64(4, [pid 5074] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5556] setpgid(0, 0) = 0 [pid 5556] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5077] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5074] <... openat resumed>) = 3 [pid 5556] <... openat resumed>) = 3 [pid 5077] getdents64(4, [pid 5074] ioctl(3, LOOP_CLR_FD [pid 5556] write(3, "1000", 4) = 4 [pid 5556] close(3) = 0 [pid 5077] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5074] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5556] symlink("/dev/binderfs", "./binderfs" [pid 5077] close(4 [pid 5074] close(3 [pid 5556] <... symlink resumed>) = 0 [pid 5077] <... close resumed>) = 0 [pid 5556] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5074] <... close resumed>) = 0 [pid 5556] <... futex resumed>) = 0 [pid 5556] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5556] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5556] clone(child_stack=0x7fdb729333f0, 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 5557 attached , parent_tid=[5557], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5557 [pid 5077] rmdir("./26/file0" [pid 5551] munmap(0x7fdb6a513000, 4194304 [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5556] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5556] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5077] <... rmdir resumed>) = 0 [pid 5557] set_robust_list(0x7fdb729339e0, 24 [pid 5551] <... munmap resumed>) = 0 [pid 5077] getdents64(3, [pid 5557] <... set_robust_list resumed>) = 0 [pid 5551] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5077] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5074] <... clone resumed>, child_tidptr=0x5555571745d0) = 5558 [pid 5557] memfd_create("syzkaller", 0 [pid 5551] <... openat resumed>) = 4 [pid 5077] close(3 [pid 5554] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5551] ioctl(4, LOOP_SET_FD, 3 [pid 5077] <... close resumed>) = 0 [pid 5557] <... memfd_create resumed>) = 3 ./strace-static-x86_64: Process 5558 attached [pid 5558] set_robust_list(0x5555571745e0, 24) = 0 [pid 5558] chdir("./26") = 0 [pid 5558] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5558] setpgid(0, 0) = 0 [pid 5558] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5557] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5077] rmdir("./26" [pid 5557] <... mmap resumed>) = 0x7fdb6a513000 [pid 5077] <... rmdir resumed>) = 0 [pid 5558] <... openat resumed>) = 3 [pid 5558] write(3, "1000", 4) = 4 [pid 5558] close(3) = 0 [pid 5558] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5077] mkdir("./27", 0777 [pid 5558] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5558] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5077] <... mkdir resumed>) = 0 [pid 5077] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5558] <... mmap resumed>) = 0x7fdb72913000 [pid 5077] <... openat resumed>) = 3 [pid 5558] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5077] ioctl(3, LOOP_CLR_FD [pid 5558] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5077] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5558] <... clone resumed>, parent_tid=[5559], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5559 [pid 5077] close(3 [pid 5558] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5555] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5551] <... ioctl resumed>) = 0 [pid 5077] <... close resumed>) = 0 [pid 5558] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5559 attached [pid 5559] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5559] memfd_create("syzkaller", 0) = 3 [pid 5559] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [pid 5551] close(3 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5551] <... close resumed>) = 0 [pid 5551] mkdir("./file0", 0777) = 0 [pid 5551] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5077] <... clone resumed>, child_tidptr=0x5555571745d0) = 5560 ./strace-static-x86_64: Process 5560 attached [ 95.312078][ T5551] loop2: detected capacity change from 0 to 8192 [pid 5557] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5560] set_robust_list(0x5555571745e0, 24) = 0 [pid 5560] chdir("./27") = 0 [pid 5560] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5560] setpgid(0, 0) = 0 [pid 5560] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5560] write(3, "1000", 4) = 4 [pid 5554] <... write resumed>) = 4194304 [pid 5560] close(3) = 0 [pid 5560] symlink("/dev/binderfs", "./binderfs") = 0 [ 95.377025][ T5551] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5560] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5560] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5560] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5560] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5562], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5562 [pid 5560] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5560] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5562 attached [pid 5562] set_robust_list(0x7fdb729339e0, 24 [pid 5554] munmap(0x7fdb6a513000, 4194304 [pid 5562] <... set_robust_list resumed>) = 0 [pid 5559] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5554] <... munmap resumed>) = 0 [pid 5562] memfd_create("syzkaller", 0 [pid 5554] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5562] <... memfd_create resumed>) = 3 [pid 5554] ioctl(4, LOOP_SET_FD, 3 [pid 5555] <... write resumed>) = 4194304 [ 95.423863][ T5551] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 95.454849][ T5551] REISERFS (device loop2): using ordered data mode [ 95.465477][ T5554] loop1: detected capacity change from 0 to 8192 [pid 5562] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5557] <... write resumed>) = 4194304 [pid 5555] munmap(0x7fdb6a513000, 4194304 [pid 5554] <... ioctl resumed>) = 0 [pid 5554] close(3) = 0 [pid 5554] mkdir("./file0", 0777 [pid 5562] <... mmap resumed>) = 0x7fdb6a513000 [pid 5555] <... munmap resumed>) = 0 [pid 5554] <... mkdir resumed>) = 0 [pid 5554] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5555] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5557] munmap(0x7fdb6a513000, 4194304 [pid 5555] <... openat resumed>) = 4 [pid 5555] ioctl(4, LOOP_SET_FD, 3 [pid 5557] <... munmap resumed>) = 0 [pid 5557] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5555] <... ioctl resumed>) = 0 [pid 5557] <... openat resumed>) = 4 [pid 5555] close(3 [ 95.469406][ T5551] reiserfs: using flush barriers [ 95.487487][ T5555] loop4: detected capacity change from 0 to 8192 [ 95.490495][ T5554] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 95.507838][ T5551] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5557] ioctl(4, LOOP_SET_FD, 3 [pid 5555] <... close resumed>) = 0 [pid 5557] <... ioctl resumed>) = 0 [pid 5555] mkdir("./file0", 0777) = 0 [pid 5555] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5557] close(3) = 0 [pid 5557] mkdir("./file0", 0777 [pid 5562] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5557] <... mkdir resumed>) = 0 [ 95.526388][ T5557] loop5: detected capacity change from 0 to 8192 [ 95.544494][ T5555] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5557] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5559] <... write resumed>) = 4194304 [pid 5559] munmap(0x7fdb6a513000, 4194304 [pid 5562] <... write resumed>) = 4194304 [pid 5562] munmap(0x7fdb6a513000, 4194304 [pid 5559] <... munmap resumed>) = 0 [pid 5559] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5562] <... munmap resumed>) = 0 [pid 5562] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 5559] <... openat resumed>) = 4 [pid 5562] ioctl(4, LOOP_SET_FD, 3) = 0 [ 95.569712][ T5554] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 95.581760][ T5557] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 95.595484][ T5555] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 95.611589][ T5562] loop3: detected capacity change from 0 to 8192 [ 95.612168][ T5551] REISERFS (device loop2): checking transaction log (loop2) [pid 5559] ioctl(4, LOOP_SET_FD, 3 [pid 5562] close(3) = 0 [pid 5562] mkdir("./file0", 0777 [pid 5559] <... ioctl resumed>) = 0 [pid 5559] close(3) = 0 [pid 5562] <... mkdir resumed>) = 0 [pid 5562] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC, "" [ 95.618239][ T5554] REISERFS (device loop1): using ordered data mode [ 95.627170][ T5559] loop0: detected capacity change from 0 to 8192 [ 95.632072][ T5554] reiserfs: using flush barriers [ 95.641460][ T5557] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 95.643596][ T5555] REISERFS (device loop4): using ordered data mode [ 95.655372][ T5557] REISERFS (device loop5): using ordered data mode [ 95.659254][ T5555] reiserfs: using flush barriers [pid 5559] mkdir("./file0", 0777) = 0 [ 95.672872][ T5555] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 95.687597][ T5554] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 95.690713][ T5555] REISERFS (device loop4): checking transaction log (loop4) [ 95.709658][ T5559] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 95.714280][ T5562] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 95.734437][ T5559] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 95.748633][ T5559] REISERFS (device loop0): using ordered data mode [ 95.756037][ T5559] reiserfs: using flush barriers [ 95.768039][ T5559] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 95.776350][ T5557] reiserfs: using flush barriers [ 95.813678][ T5559] REISERFS (device loop0): checking transaction log (loop0) [ 95.823474][ T5562] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 95.826594][ T5557] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 95.832797][ T5562] REISERFS (device loop3): using ordered data mode [ 95.855618][ T5562] reiserfs: using flush barriers [ 95.861871][ T5562] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 95.863205][ T5554] REISERFS (device loop1): checking transaction log (loop1) [ 95.878671][ T5557] REISERFS (device loop5): checking transaction log (loop5) [ 95.893655][ T5562] REISERFS (device loop3): checking transaction log (loop3) [ 95.960848][ T5551] REISERFS (device loop2): Using r5 hash to sort names [ 95.998306][ T5551] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 5559] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5551] <... mount resumed>) = 0 [pid 5551] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5551] chdir("./file0") = 0 [pid 5551] ioctl(4, LOOP_CLR_FD) = 0 [pid 5551] close(4) = 0 [pid 5551] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5550] <... futex resumed>) = 0 [pid 5551] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5550] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5551] <... open resumed>) = 4 [pid 5550] <... futex resumed>) = 0 [pid 5551] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5550] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5551] <... futex resumed>) = 0 [pid 5550] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5551] ioctl(4, FS_IOC_GETVERSION [pid 5550] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5551] <... ioctl resumed>, 0x20000080) = 0 [pid 5550] <... futex resumed>) = 0 [pid 5551] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5550] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5551] <... futex resumed>) = 0 [pid 5550] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5551] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5550] exit_group(0 [pid 5551] <... futex resumed>) = ? [pid 5550] <... exit_group resumed>) = ? [pid 5551] +++ exited with 0 +++ [pid 5550] +++ exited with 0 +++ [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5550, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} --- [ 96.024298][ T5562] REISERFS (device loop3): Using r5 hash to sort names [ 96.050056][ T5562] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [pid 5562] <... mount resumed>) = 0 [pid 5562] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5076] umount2("./26", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5562] <... openat resumed>) = 3 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5562] chdir("./file0" [pid 5076] openat(AT_FDCWD, "./26", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5562] <... chdir resumed>) = 0 [pid 5076] <... openat resumed>) = 3 [pid 5562] ioctl(4, LOOP_CLR_FD [pid 5076] fstat(3, [pid 5562] <... ioctl resumed>) = 0 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5562] close(4 [pid 5076] getdents64(3, [pid 5562] <... close resumed>) = 0 [pid 5076] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5562] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5076] umount2("./26/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5562] <... futex resumed>) = 1 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5562] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5076] lstat("./26/binderfs", [pid 5560] <... futex resumed>) = 0 [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5560] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5076] unlink("./26/binderfs" [pid 5562] <... futex resumed>) = 0 [pid 5560] <... futex resumed>) = 1 [pid 5562] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5560] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5076] <... unlink resumed>) = 0 [pid 5562] <... open resumed>) = 4 [pid 5076] umount2("./26/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5562] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5560] <... futex resumed>) = 0 [pid 5560] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5562] ioctl(4, FS_IOC_GETVERSION [pid 5560] <... futex resumed>) = 0 [pid 5562] <... ioctl resumed>, 0x20000080) = 0 [pid 5560] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5562] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5560] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5562] <... futex resumed>) = 0 [pid 5560] exit_group(0) = ? [ 96.114203][ T5557] REISERFS (device loop5): Using r5 hash to sort names [ 96.121620][ T5557] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 96.141730][ T5555] REISERFS (device loop4): Using r5 hash to sort names [pid 5562] +++ exited with 0 +++ [pid 5560] +++ exited with 0 +++ [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5560, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} --- [pid 5557] <... mount resumed>) = 0 [pid 5557] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5077] umount2("./27", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] openat(AT_FDCWD, "./27", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5077] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5077] umount2("./27/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5557] <... openat resumed>) = 3 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5557] chdir("./file0" [pid 5077] lstat("./27/binderfs", [pid 5557] <... chdir resumed>) = 0 [pid 5557] ioctl(4, LOOP_CLR_FD [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5557] <... ioctl resumed>) = 0 [pid 5077] unlink("./27/binderfs" [pid 5557] close(4 [pid 5555] <... mount resumed>) = 0 [pid 5077] <... unlink resumed>) = 0 [pid 5557] <... close resumed>) = 0 [pid 5555] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5557] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5555] <... openat resumed>) = 3 [pid 5557] <... futex resumed>) = 1 [pid 5556] <... futex resumed>) = 0 [pid 5555] chdir("./file0" [pid 5077] umount2("./27/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5557] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5556] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5555] <... chdir resumed>) = 0 [pid 5557] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5556] <... futex resumed>) = 0 [ 96.169901][ T5555] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 96.184332][ T5559] REISERFS (device loop0): Using r5 hash to sort names [ 96.203100][ T5559] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5555] ioctl(4, LOOP_CLR_FD [pid 5557] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5555] <... ioctl resumed>) = 0 [pid 5557] <... open resumed>) = 4 [pid 5555] close(4 [pid 5557] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5555] <... close resumed>) = 0 [pid 5557] <... futex resumed>) = 0 [pid 5555] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5557] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5555] <... futex resumed>) = 1 [pid 5553] <... futex resumed>) = 0 [pid 5556] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5555] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5553] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5556] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5555] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5553] <... futex resumed>) = 0 [pid 5556] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5555] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5553] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5557] <... futex resumed>) = 0 [pid 5556] <... futex resumed>) = 1 [pid 5555] <... open resumed>) = 4 [pid 5557] ioctl(4, FS_IOC_GETVERSION [pid 5556] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5555] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5557] <... ioctl resumed>, 0x20000080) = 0 [pid 5555] <... futex resumed>) = 1 [pid 5553] <... futex resumed>) = 0 [pid 5557] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5555] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5553] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5557] <... futex resumed>) = 1 [pid 5556] <... futex resumed>) = 0 [pid 5555] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5553] <... futex resumed>) = 0 [pid 5557] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5556] exit_group(0 [pid 5555] ioctl(4, FS_IOC_GETVERSION [pid 5553] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5559] <... mount resumed>) = 0 [pid 5557] <... futex resumed>) = ? [pid 5556] <... exit_group resumed>) = ? [pid 5555] <... ioctl resumed>, 0x20000080) = 0 [pid 5557] +++ exited with 0 +++ [pid 5555] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5553] <... futex resumed>) = 0 [pid 5555] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5553] exit_group(0 [pid 5555] <... futex resumed>) = ? [pid 5553] <... exit_group resumed>) = ? [pid 5559] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5556] +++ exited with 0 +++ [pid 5555] +++ exited with 0 +++ [pid 5553] +++ exited with 0 +++ [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5556, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=19 /* 0.19 s */} --- [pid 5079] restart_syscall(<... resuming interrupted clone ...> [pid 5078] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5553, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=19 /* 0.19 s */} --- [pid 5079] <... restart_syscall resumed>) = 0 [pid 5078] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5079] umount2("./25", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5078] umount2("./26", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] openat(AT_FDCWD, "./25", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... openat resumed>) = 3 [pid 5078] openat(AT_FDCWD, "./26", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] fstat(3, [pid 5078] <... openat resumed>) = 3 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] fstat(3, [pid 5559] <... openat resumed>) = 3 [pid 5079] getdents64(3, [pid 5078] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5559] chdir("./file0" [pid 5079] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5078] getdents64(3, [pid 5559] <... chdir resumed>) = 0 [pid 5079] umount2("./25/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5078] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5559] ioctl(4, LOOP_CLR_FD [pid 5554] <... mount resumed>) = 0 [ 96.236831][ T5554] REISERFS (device loop1): Using r5 hash to sort names [ 96.271587][ T5554] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5078] umount2("./26/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5559] <... ioctl resumed>) = 0 [pid 5554] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5079] lstat("./25/binderfs", [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5559] close(4 [pid 5554] <... openat resumed>) = 3 [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5078] lstat("./26/binderfs", [pid 5559] <... close resumed>) = 0 [pid 5554] chdir("./file0" [pid 5079] unlink("./25/binderfs" [pid 5078] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5559] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5554] <... chdir resumed>) = 0 [pid 5079] <... unlink resumed>) = 0 [pid 5078] unlink("./26/binderfs" [pid 5559] <... futex resumed>) = 1 [pid 5558] <... futex resumed>) = 0 [pid 5554] ioctl(4, LOOP_CLR_FD [pid 5079] umount2("./25/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5078] <... unlink resumed>) = 0 [pid 5559] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5558] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5554] <... ioctl resumed>) = 0 [pid 5078] umount2("./26/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5559] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5558] <... futex resumed>) = 0 [pid 5554] close(4 [pid 5559] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5558] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5554] <... close resumed>) = 0 [pid 5559] <... open resumed>) = 4 [pid 5554] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5559] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5554] <... futex resumed>) = 1 [pid 5552] <... futex resumed>) = 0 [pid 5559] <... futex resumed>) = 1 [pid 5558] <... futex resumed>) = 0 [pid 5559] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5554] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5552] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] <... umount2 resumed>) = 0 [pid 5559] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5558] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5554] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5552] <... futex resumed>) = 0 [pid 5559] ioctl(4, FS_IOC_GETVERSION [pid 5558] <... futex resumed>) = 0 [pid 5554] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5552] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5077] umount2("./27/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5559] <... ioctl resumed>, 0x20000080) = 0 [pid 5558] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5554] <... open resumed>) = 4 [pid 5559] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5558] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5554] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5559] <... futex resumed>) = 0 [pid 5558] exit_group(0 [pid 5554] <... futex resumed>) = 1 [pid 5552] <... futex resumed>) = 0 [pid 5558] <... exit_group resumed>) = ? [pid 5554] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5552] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] lstat("./27/file0", [pid 5559] +++ exited with 0 +++ [pid 5554] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5552] <... futex resumed>) = 0 [pid 5558] +++ exited with 0 +++ [pid 5554] ioctl(4, FS_IOC_GETVERSION [pid 5552] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5077] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5554] <... ioctl resumed>, 0x20000080) = 0 [pid 5077] umount2("./27/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5554] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5554] <... futex resumed>) = 1 [pid 5552] <... futex resumed>) = 0 [pid 5077] openat(AT_FDCWD, "./27/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5554] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5552] exit_group(0 [pid 5554] <... futex resumed>) = ? [pid 5552] <... exit_group resumed>) = ? [pid 5077] <... openat resumed>) = 4 [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5558, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=20 /* 0.20 s */} --- [pid 5554] +++ exited with 0 +++ [pid 5552] +++ exited with 0 +++ [pid 5077] fstat(4, [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5552, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=22 /* 0.22 s */} --- [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5074] umount2("./26", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] getdents64(4, [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5074] openat(AT_FDCWD, "./26", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] close(4 [pid 5075] umount2("./25", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] <... openat resumed>) = 3 [pid 5077] <... close resumed>) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] fstat(3, [pid 5077] rmdir("./27/file0" [pid 5075] openat(AT_FDCWD, "./25", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] <... rmdir resumed>) = 0 [pid 5075] <... openat resumed>) = 3 [pid 5074] getdents64(3, [pid 5077] getdents64(3, [pid 5075] fstat(3, [pid 5074] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5077] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] umount2("./26/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] close(3 [pid 5076] <... umount2 resumed>) = 0 [pid 5075] getdents64(3, [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... close resumed>) = 0 [pid 5075] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5074] lstat("./26/binderfs", [pid 5075] umount2("./25/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] unlink("./26/binderfs" [pid 5077] rmdir("./27" [pid 5075] lstat("./25/binderfs", [pid 5074] <... unlink resumed>) = 0 [pid 5077] <... rmdir resumed>) = 0 [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5074] umount2("./26/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] mkdir("./28", 0777 [pid 5075] unlink("./25/binderfs") = 0 [pid 5077] <... mkdir resumed>) = 0 [pid 5076] umount2("./26/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] umount2("./25/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... openat resumed>) = 3 [pid 5076] lstat("./26/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] umount2("./26/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] ioctl(3, LOOP_CLR_FD [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] openat(AT_FDCWD, "./26/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5076] fstat(4, [pid 5077] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] close(3) = 0 [pid 5076] getdents64(4, [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5076] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5076] close(4 [pid 5077] <... clone resumed>, child_tidptr=0x5555571745d0) = 5568 [pid 5076] <... close resumed>) = 0 [pid 5076] rmdir("./26/file0") = 0 [pid 5076] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5076] close(3) = 0 [pid 5076] rmdir("./26") = 0 [pid 5076] mkdir("./27", 0777) = 0 [pid 5076] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5076] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5076] close(3) = 0 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5569 ./strace-static-x86_64: Process 5569 attached [pid 5569] set_robust_list(0x5555571745e0, 24) = 0 [pid 5569] chdir("./27") = 0 [pid 5569] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 ./strace-static-x86_64: Process 5568 attached [pid 5568] set_robust_list(0x5555571745e0, 24 [pid 5569] setpgid(0, 0) = 0 [pid 5568] <... set_robust_list resumed>) = 0 [pid 5568] chdir("./28" [pid 5569] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5568] <... chdir resumed>) = 0 [pid 5569] <... openat resumed>) = 3 [pid 5568] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5569] write(3, "1000", 4) = 4 [pid 5569] close(3 [pid 5568] setpgid(0, 0 [pid 5569] <... close resumed>) = 0 [pid 5569] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5569] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5569] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5568] <... setpgid resumed>) = 0 [pid 5569] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5568] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5569] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5568] <... openat resumed>) = 3 [pid 5568] write(3, "1000", 4 [pid 5569] <... clone resumed>, parent_tid=[5570], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5570 [pid 5568] <... write resumed>) = 4 [pid 5569] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5568] close(3 [pid 5569] <... futex resumed>) = 0 [pid 5568] <... close resumed>) = 0 [pid 5569] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5568] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5568] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5568] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0./strace-static-x86_64: Process 5570 attached ) = 0x7fdb72913000 [pid 5568] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5568] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5570] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5570] memfd_create("syzkaller", 0 [pid 5568] <... clone resumed>, parent_tid=[5571], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5571 [pid 5570] <... memfd_create resumed>) = 3 [pid 5568] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5570] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5568] <... futex resumed>) = 0 [pid 5570] <... mmap resumed>) = 0x7fdb6a513000 [pid 5568] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5571 attached [pid 5571] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5571] memfd_create("syzkaller", 0) = 3 [pid 5571] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [pid 5078] <... umount2 resumed>) = 0 [pid 5571] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5078] umount2("./26/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5570] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5079] <... umount2 resumed>) = 0 [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5078] lstat("./26/file0", [pid 5079] umount2("./25/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] lstat("./25/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] umount2("./25/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5078] umount2("./26/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./25/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5078] openat(AT_FDCWD, "./26/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] <... openat resumed>) = 4 [pid 5078] <... openat resumed>) = 4 [pid 5079] fstat(4, [pid 5078] fstat(4, [pid 5075] <... umount2 resumed>) = 0 [pid 5074] <... umount2 resumed>) = 0 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] umount2("./25/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] umount2("./26/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] getdents64(4, [pid 5078] getdents64(4, [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5078] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5075] lstat("./25/file0", [pid 5074] lstat("./26/file0", [pid 5079] getdents64(4, [pid 5078] getdents64(4, [pid 5075] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5078] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5074] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] close(4 [pid 5078] close(4 [pid 5075] umount2("./25/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] umount2("./26/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... close resumed>) = 0 [pid 5078] <... close resumed>) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] rmdir("./25/file0" [pid 5078] rmdir("./26/file0" [pid 5075] openat(AT_FDCWD, "./25/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5074] openat(AT_FDCWD, "./26/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] <... rmdir resumed>) = 0 [pid 5078] <... rmdir resumed>) = 0 [pid 5079] getdents64(3, [pid 5078] getdents64(3, [pid 5075] <... openat resumed>) = 4 [pid 5074] <... openat resumed>) = 4 [pid 5079] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5078] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5075] fstat(4, [pid 5074] fstat(4, [pid 5079] close(3 [pid 5078] close(3 [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] <... close resumed>) = 0 [pid 5078] <... close resumed>) = 0 [pid 5075] getdents64(4, [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] rmdir("./25" [pid 5078] rmdir("./26" [pid 5079] <... rmdir resumed>) = 0 [pid 5078] <... rmdir resumed>) = 0 [pid 5075] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5074] getdents64(4, [pid 5079] mkdir("./26", 0777 [pid 5078] mkdir("./27", 0777 [pid 5075] getdents64(4, [pid 5079] <... mkdir resumed>) = 0 [pid 5078] <... mkdir resumed>) = 0 [pid 5075] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5074] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5079] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5078] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5075] close(4 [pid 5074] getdents64(4, [pid 5079] <... openat resumed>) = 3 [pid 5078] <... openat resumed>) = 3 [pid 5075] <... close resumed>) = 0 [pid 5079] ioctl(3, LOOP_CLR_FD [pid 5078] ioctl(3, LOOP_CLR_FD [pid 5075] rmdir("./25/file0" [pid 5074] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5079] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5078] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5078] close(3 [pid 5079] close(3 [pid 5078] <... close resumed>) = 0 [pid 5075] <... rmdir resumed>) = 0 [pid 5074] close(4 [pid 5078] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5572 [pid 5079] <... close resumed>) = 0 [pid 5075] getdents64(3, [pid 5074] <... close resumed>) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5074] rmdir("./26/file0"./strace-static-x86_64: Process 5572 attached [pid 5079] <... clone resumed>, child_tidptr=0x5555571745d0) = 5573 [pid 5075] close(3 [pid 5074] <... rmdir resumed>) = 0 [pid 5075] <... close resumed>) = 0 [pid 5074] getdents64(3, [pid 5075] rmdir("./25" [pid 5074] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5572] set_robust_list(0x5555571745e0, 24 [pid 5075] <... rmdir resumed>) = 0 [pid 5074] close(3 [pid 5572] <... set_robust_list resumed>) = 0 [pid 5075] mkdir("./26", 0777 [pid 5572] chdir("./27" [pid 5074] <... close resumed>) = 0 ./strace-static-x86_64: Process 5573 attached [pid 5572] <... chdir resumed>) = 0 [pid 5075] <... mkdir resumed>) = 0 [pid 5074] rmdir("./26" [pid 5572] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5075] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5573] set_robust_list(0x5555571745e0, 24 [pid 5572] <... prctl resumed>) = 0 [pid 5075] <... openat resumed>) = 3 [pid 5074] <... rmdir resumed>) = 0 [pid 5573] <... set_robust_list resumed>) = 0 [pid 5572] setpgid(0, 0 [pid 5075] ioctl(3, LOOP_CLR_FD [pid 5074] mkdir("./27", 0777 [pid 5573] chdir("./26" [pid 5572] <... setpgid resumed>) = 0 [pid 5075] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5573] <... chdir resumed>) = 0 [pid 5572] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5075] close(3 [pid 5074] <... mkdir resumed>) = 0 [pid 5573] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5572] <... openat resumed>) = 3 [pid 5075] <... close resumed>) = 0 [pid 5074] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5573] <... prctl resumed>) = 0 [pid 5572] write(3, "1000", 4 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5573] setpgid(0, 0 [pid 5572] <... write resumed>) = 4 [pid 5074] <... openat resumed>) = 3 [pid 5572] close(3 [pid 5573] <... setpgid resumed>) = 0 [pid 5572] <... close resumed>) = 0 [pid 5075] <... clone resumed>, child_tidptr=0x5555571745d0) = 5574 [pid 5074] ioctl(3, LOOP_CLR_FD [pid 5573] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5572] symlink("/dev/binderfs", "./binderfs" [pid 5573] <... openat resumed>) = 3 [pid 5572] <... symlink resumed>) = 0 [pid 5074] <... ioctl resumed>) = -1 ENXIO (No such device or address) ./strace-static-x86_64: Process 5574 attached [pid 5573] write(3, "1000", 4 [pid 5572] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5074] close(3 [pid 5574] set_robust_list(0x5555571745e0, 24 [pid 5573] <... write resumed>) = 4 [pid 5572] <... futex resumed>) = 0 [pid 5074] <... close resumed>) = 0 [pid 5574] <... set_robust_list resumed>) = 0 [pid 5573] close(3 [pid 5572] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5574] chdir("./26" [pid 5573] <... close resumed>) = 0 [pid 5572] <... mmap resumed>) = 0x7fdb72913000 [pid 5572] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5574] <... chdir resumed>) = 0 [pid 5573] symlink("/dev/binderfs", "./binderfs" [pid 5572] <... mprotect resumed>) = 0 [pid 5574] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5573] <... symlink resumed>) = 0 [pid 5572] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5074] <... clone resumed>, child_tidptr=0x5555571745d0) = 5575 [pid 5574] <... prctl resumed>) = 0 [pid 5572] <... clone resumed>, parent_tid=[5576], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5576 ./strace-static-x86_64: Process 5575 attached [pid 5572] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5575] set_robust_list(0x5555571745e0, 24 [pid 5572] <... futex resumed>) = 0 [pid 5575] <... set_robust_list resumed>) = 0 [pid 5572] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5575] chdir("./27") = 0 [pid 5574] setpgid(0, 0 [pid 5573] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5575] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5574] <... setpgid resumed>) = 0 [pid 5573] <... futex resumed>) = 0 ./strace-static-x86_64: Process 5576 attached [pid 5575] <... prctl resumed>) = 0 [pid 5574] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5573] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5576] set_robust_list(0x7fdb729339e0, 24 [pid 5575] setpgid(0, 0 [pid 5574] <... openat resumed>) = 3 [pid 5573] <... mmap resumed>) = 0x7fdb72913000 [pid 5576] <... set_robust_list resumed>) = 0 [pid 5575] <... setpgid resumed>) = 0 [pid 5574] write(3, "1000", 4 [pid 5573] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5576] memfd_create("syzkaller", 0 [pid 5575] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5574] <... write resumed>) = 4 [pid 5573] <... mprotect resumed>) = 0 [pid 5576] <... memfd_create resumed>) = 3 [pid 5575] <... openat resumed>) = 3 [pid 5574] close(3 [pid 5573] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5571] <... write resumed>) = 4194304 [pid 5576] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5575] write(3, "1000", 4 [pid 5574] <... close resumed>) = 0 [pid 5571] munmap(0x7fdb6a513000, 4194304 [pid 5576] <... mmap resumed>) = 0x7fdb6a513000 [pid 5575] <... write resumed>) = 4 [pid 5574] symlink("/dev/binderfs", "./binderfs" [pid 5573] <... clone resumed>, parent_tid=[5577], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5577 [pid 5570] <... write resumed>) = 4194304 ./strace-static-x86_64: Process 5577 attached [pid 5575] close(3 [pid 5574] <... symlink resumed>) = 0 [pid 5573] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5571] <... munmap resumed>) = 0 [pid 5577] set_robust_list(0x7fdb729339e0, 24 [pid 5575] <... close resumed>) = 0 [pid 5574] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5573] <... futex resumed>) = 0 [pid 5571] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5577] <... set_robust_list resumed>) = 0 [pid 5575] symlink("/dev/binderfs", "./binderfs" [pid 5574] <... futex resumed>) = 0 [pid 5573] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5571] <... openat resumed>) = 4 [pid 5577] memfd_create("syzkaller", 0 [pid 5575] <... symlink resumed>) = 0 [pid 5574] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5571] ioctl(4, LOOP_SET_FD, 3 [pid 5577] <... memfd_create resumed>) = 3 [pid 5575] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5574] <... mmap resumed>) = 0x7fdb72913000 [pid 5575] <... futex resumed>) = 0 [pid 5575] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5575] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5570] munmap(0x7fdb6a513000, 4194304 [pid 5575] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5570] <... munmap resumed>) = 0 [pid 5577] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5574] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5577] <... mmap resumed>) = 0x7fdb6a513000 [pid 5575] <... clone resumed>, parent_tid=[5578], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5578 [pid 5574] <... mprotect resumed>) = 0 [pid 5570] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5571] <... ioctl resumed>) = 0 [pid 5575] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5570] <... openat resumed>) = 4 [pid 5575] <... futex resumed>) = 0 [pid 5570] ioctl(4, LOOP_SET_FD, 3./strace-static-x86_64: Process 5578 attached [pid 5575] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5574] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5571] close(3 [pid 5570] <... ioctl resumed>) = 0 [pid 5578] set_robust_list(0x7fdb729339e0, 24 [pid 5571] <... close resumed>) = 0 [pid 5578] <... set_robust_list resumed>) = 0 [pid 5574] <... clone resumed>, parent_tid=[5579], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5579 [pid 5571] mkdir("./file0", 0777 [pid 5578] memfd_create("syzkaller", 0 [pid 5574] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5571] <... mkdir resumed>) = 0 [pid 5578] <... memfd_create resumed>) = 3 [pid 5574] <... futex resumed>) = 0 [pid 5571] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC, ""./strace-static-x86_64: Process 5579 attached [pid 5578] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5577] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5576] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [ 96.751887][ T5571] loop3: detected capacity change from 0 to 8192 [ 96.766509][ T5570] loop2: detected capacity change from 0 to 8192 [pid 5574] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5570] close(3 [pid 5579] set_robust_list(0x7fdb729339e0, 24 [pid 5578] <... mmap resumed>) = 0x7fdb6a513000 [pid 5570] <... close resumed>) = 0 [pid 5579] <... set_robust_list resumed>) = 0 [pid 5570] mkdir("./file0", 0777 [pid 5579] memfd_create("syzkaller", 0 [pid 5570] <... mkdir resumed>) = 0 [pid 5579] <... memfd_create resumed>) = 3 [pid 5570] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5579] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [ 96.791431][ T5571] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5576] <... write resumed>) = 4194304 [pid 5576] munmap(0x7fdb6a513000, 4194304) = 0 [pid 5576] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5576] ioctl(4, LOOP_SET_FD, 3) = 0 [ 96.837751][ T5571] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 96.845199][ T5570] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 96.848361][ T5571] REISERFS (device loop3): using ordered data mode [ 96.869064][ T5571] reiserfs: using flush barriers [ 96.876537][ T5576] loop4: detected capacity change from 0 to 8192 [pid 5576] close(3) = 0 [pid 5578] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5576] mkdir("./file0", 0777) = 0 [ 96.885717][ T5570] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 96.895122][ T5571] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 96.899009][ T5570] REISERFS (device loop2): using ordered data mode [ 96.922773][ T5576] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5576] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5579] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5578] <... write resumed>) = 4194304 [pid 5578] munmap(0x7fdb6a513000, 4194304) = 0 [ 96.933453][ T5570] reiserfs: using flush barriers [ 96.943047][ T5570] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 96.965445][ T5576] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [pid 5578] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5578] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5578] close(3) = 0 [pid 5578] mkdir("./file0", 0777) = 0 [ 96.982728][ T5571] REISERFS (device loop3): checking transaction log (loop3) [ 96.992405][ T5578] loop0: detected capacity change from 0 to 8192 [ 97.010877][ T5576] REISERFS (device loop4): using ordered data mode [ 97.014431][ T5570] REISERFS (device loop2): checking transaction log (loop2) [pid 5578] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5577] <... write resumed>) = 4194304 [pid 5577] munmap(0x7fdb6a513000, 4194304) = 0 [pid 5577] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [ 97.045383][ T5578] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 97.047711][ T5576] reiserfs: using flush barriers [ 97.067417][ T5576] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5577] ioctl(4, LOOP_SET_FD, 3 [pid 5579] <... write resumed>) = 4194304 [ 97.093843][ T5576] REISERFS (device loop4): checking transaction log (loop4) [ 97.100242][ T5577] loop5: detected capacity change from 0 to 8192 [pid 5579] munmap(0x7fdb6a513000, 4194304) = 0 [pid 5579] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5579] ioctl(4, LOOP_SET_FD, 3 [pid 5577] <... ioctl resumed>) = 0 [pid 5577] close(3) = 0 [pid 5577] mkdir("./file0", 0777) = 0 [pid 5577] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5579] <... ioctl resumed>) = 0 [ 97.139878][ T5578] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 97.144036][ T5579] loop1: detected capacity change from 0 to 8192 [ 97.149676][ T5578] REISERFS (device loop0): using ordered data mode [ 97.162251][ T5578] reiserfs: using flush barriers [pid 5579] close(3) = 0 [pid 5579] mkdir("./file0", 0777) = 0 [ 97.200691][ T5578] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 97.223698][ T5576] REISERFS (device loop4): Using r5 hash to sort names [ 97.223732][ T5577] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5579] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5576] <... mount resumed>) = 0 [pid 5576] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5576] chdir("./file0") = 0 [ 97.230983][ T5576] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 97.253676][ T5579] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 97.267514][ T5578] REISERFS (device loop0): checking transaction log (loop0) [ 97.269029][ T5579] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 97.287327][ T5570] REISERFS (device loop2): Using r5 hash to sort names [ 97.288305][ T5579] REISERFS (device loop1): using ordered data mode [pid 5576] ioctl(4, LOOP_CLR_FD) = 0 [ 97.299095][ T5570] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 97.303164][ T5579] reiserfs: using flush barriers [ 97.311040][ T5571] REISERFS (device loop3): Using r5 hash to sort names [ 97.320414][ T5577] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 97.324180][ T5579] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5576] close(4) = 0 [pid 5576] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5576] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5572] <... futex resumed>) = 0 [pid 5572] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5576] <... futex resumed>) = 0 [pid 5572] <... futex resumed>) = 1 [pid 5570] <... mount resumed>) = 0 [pid 5576] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5572] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5571] <... mount resumed>) = 0 [pid 5570] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5571] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5570] <... openat resumed>) = 3 [pid 5571] <... openat resumed>) = 3 [pid 5570] chdir("./file0" [pid 5571] chdir("./file0" [pid 5570] <... chdir resumed>) = 0 [pid 5571] <... chdir resumed>) = 0 [pid 5570] ioctl(4, LOOP_CLR_FD [pid 5571] ioctl(4, LOOP_CLR_FD [pid 5570] <... ioctl resumed>) = 0 [pid 5576] <... open resumed>) = 4 [pid 5571] <... ioctl resumed>) = 0 [pid 5570] close(4 [pid 5576] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5571] close(4 [pid 5570] <... close resumed>) = 0 [pid 5576] <... futex resumed>) = 1 [pid 5572] <... futex resumed>) = 0 [pid 5571] <... close resumed>) = 0 [pid 5570] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5576] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5572] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5571] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5570] <... futex resumed>) = 1 [pid 5569] <... futex resumed>) = 0 [pid 5576] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5572] <... futex resumed>) = 0 [pid 5571] <... futex resumed>) = 1 [pid 5570] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5569] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5568] <... futex resumed>) = 0 [pid 5576] ioctl(4, FS_IOC_GETVERSION [pid 5572] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5571] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5570] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5569] <... futex resumed>) = 0 [pid 5568] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5576] <... ioctl resumed>, 0x20000080) = 0 [pid 5571] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5570] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5569] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5568] <... futex resumed>) = 0 [pid 5576] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5571] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5570] <... open resumed>) = 4 [pid 5568] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5576] <... futex resumed>) = 1 [pid 5572] <... futex resumed>) = 0 [pid 5571] <... open resumed>) = 4 [pid 5570] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5576] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5572] exit_group(0 [pid 5571] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5570] <... futex resumed>) = 1 [pid 5569] <... futex resumed>) = 0 [ 97.332137][ T5577] REISERFS (device loop5): using ordered data mode [ 97.354479][ T5577] reiserfs: using flush barriers [ 97.362856][ T5571] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 97.373500][ T5579] REISERFS (device loop1): checking transaction log (loop1) [ 97.380685][ T5577] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5576] <... futex resumed>) = ? [pid 5572] <... exit_group resumed>) = ? [pid 5571] <... futex resumed>) = 1 [pid 5570] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5569] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5568] <... futex resumed>) = 0 [pid 5576] +++ exited with 0 +++ [pid 5572] +++ exited with 0 +++ [pid 5571] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5570] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5569] <... futex resumed>) = 0 [pid 5568] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5571] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5570] ioctl(4, FS_IOC_GETVERSION [pid 5569] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5568] <... futex resumed>) = 0 [pid 5078] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5572, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=20 /* 0.20 s */} --- [pid 5571] ioctl(4, FS_IOC_GETVERSION [pid 5570] <... ioctl resumed>, 0x20000080) = 0 [pid 5568] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5078] restart_syscall(<... resuming interrupted clone ...> [pid 5571] <... ioctl resumed>, 0x20000080) = 0 [pid 5570] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] <... restart_syscall resumed>) = 0 [pid 5571] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5570] <... futex resumed>) = 1 [pid 5569] <... futex resumed>) = 0 [pid 5571] <... futex resumed>) = 1 [pid 5570] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5569] exit_group(0 [pid 5568] <... futex resumed>) = 0 [pid 5571] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5570] <... futex resumed>) = ? [pid 5569] <... exit_group resumed>) = ? [pid 5570] +++ exited with 0 +++ [pid 5569] +++ exited with 0 +++ [pid 5568] exit_group(0 [pid 5078] umount2("./27", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5571] <... futex resumed>) = ? [pid 5568] <... exit_group resumed>) = ? [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5569, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} --- [pid 5571] +++ exited with 0 +++ [pid 5568] +++ exited with 0 +++ [pid 5078] openat(AT_FDCWD, "./27", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5568, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=20 /* 0.20 s */} --- [pid 5078] <... openat resumed>) = 3 [pid 5078] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] umount2("./27", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5078] getdents64(3, [pid 5077] umount2("./28", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5078] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] openat(AT_FDCWD, "./27", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5078] umount2("./27/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] openat(AT_FDCWD, "./28", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] <... openat resumed>) = 3 [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5078] lstat("./27/binderfs", [pid 5077] <... openat resumed>) = 3 [pid 5076] fstat(3, [pid 5078] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] fstat(3, [pid 5078] unlink("./27/binderfs" [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] getdents64(3, [pid 5078] <... unlink resumed>) = 0 [pid 5077] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5078] umount2("./27/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5077] umount2("./28/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] umount2("./27/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] lstat("./28/binderfs", [pid 5076] lstat("./27/binderfs", [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] unlink("./28/binderfs" [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] <... unlink resumed>) = 0 [pid 5076] unlink("./27/binderfs" [pid 5077] umount2("./28/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... unlink resumed>) = 0 [ 97.533422][ T5577] REISERFS (device loop5): checking transaction log (loop5) [ 97.557696][ T5579] REISERFS (device loop1): Using r5 hash to sort names [pid 5076] umount2("./27/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5579] <... mount resumed>) = 0 [pid 5579] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5579] chdir("./file0") = 0 [pid 5579] ioctl(4, LOOP_CLR_FD) = 0 [pid 5579] close(4) = 0 [pid 5579] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5574] <... futex resumed>) = 0 [pid 5574] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5574] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5579] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 5579] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5578] <... mount resumed>) = 0 [pid 5579] <... futex resumed>) = 1 [pid 5574] <... futex resumed>) = 0 [pid 5579] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5578] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5574] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5579] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5578] <... openat resumed>) = 3 [pid 5574] <... futex resumed>) = 0 [pid 5574] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5579] ioctl(4, FS_IOC_GETVERSION [pid 5578] chdir("./file0" [pid 5579] <... ioctl resumed>, 0x20000080) = 0 [pid 5578] <... chdir resumed>) = 0 [pid 5579] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [ 97.594873][ T5578] REISERFS (device loop0): Using r5 hash to sort names [ 97.603836][ T5578] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 97.613854][ T5579] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [pid 5578] ioctl(4, LOOP_CLR_FD [pid 5579] <... futex resumed>) = 1 [pid 5578] <... ioctl resumed>) = 0 [pid 5574] <... futex resumed>) = 0 [pid 5579] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5578] close(4 [pid 5574] exit_group(0 [pid 5579] <... futex resumed>) = ? [pid 5578] <... close resumed>) = 0 [pid 5574] <... exit_group resumed>) = ? [pid 5078] <... umount2 resumed>) = 0 [pid 5579] +++ exited with 0 +++ [pid 5578] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5575] <... futex resumed>) = 0 [pid 5578] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5575] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5578] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5575] <... futex resumed>) = 0 [pid 5574] +++ exited with 0 +++ [pid 5578] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5575] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5578] <... open resumed>) = 4 [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5574, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=17 /* 0.17 s */} --- [pid 5578] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5075] restart_syscall(<... resuming interrupted clone ...> [pid 5578] <... futex resumed>) = 1 [pid 5575] <... futex resumed>) = 0 [pid 5578] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5575] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5075] <... restart_syscall resumed>) = 0 [pid 5578] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5575] <... futex resumed>) = 0 [pid 5578] ioctl(4, FS_IOC_GETVERSION [pid 5575] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5578] <... ioctl resumed>, 0x20000080) = 0 [pid 5578] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5575] <... futex resumed>) = 0 [pid 5075] umount2("./26", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5578] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5575] exit_group(0 [pid 5078] umount2("./27/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5578] <... futex resumed>) = ? [pid 5575] <... exit_group resumed>) = ? [pid 5075] openat(AT_FDCWD, "./26", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5578] +++ exited with 0 +++ [pid 5575] +++ exited with 0 +++ [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... openat resumed>) = 3 [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5575, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} --- [pid 5075] fstat(3, [pid 5078] lstat("./27/file0", [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] getdents64(3, [pid 5074] umount2("./27", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5078] umount2("./27/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] umount2("./26/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] openat(AT_FDCWD, "./27", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] lstat("./26/binderfs", [pid 5074] <... openat resumed>) = 3 [pid 5078] openat(AT_FDCWD, "./27/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5074] fstat(3, [pid 5078] fstat(4, [pid 5075] unlink("./26/binderfs" [pid 5078] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] getdents64(4, [pid 5075] <... unlink resumed>) = 0 [pid 5078] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5075] umount2("./26/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] getdents64(3, [pid 5078] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5074] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5078] close(4) = 0 [pid 5074] umount2("./27/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5078] rmdir("./27/file0") = 0 [pid 5077] <... umount2 resumed>) = 0 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5078] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5074] lstat("./27/binderfs", [pid 5078] close(3) = 0 [pid 5074] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5078] rmdir("./27") = 0 [pid 5074] unlink("./27/binderfs" [pid 5078] mkdir("./28", 0777) = 0 [pid 5074] <... unlink resumed>) = 0 [pid 5078] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5074] umount2("./27/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5078] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5078] close(3) = 0 [pid 5078] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5586 [pid 5076] <... umount2 resumed>) = 0 [pid 5076] umount2("./27/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] umount2("./28/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] lstat("./28/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] umount2("./28/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] openat(AT_FDCWD, "./28/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] lstat("./27/file0", [pid 5077] <... openat resumed>) = 4 [pid 5077] fstat(4, [pid 5076] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] umount2("./27/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] getdents64(4, ./strace-static-x86_64: Process 5586 attached 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5076] openat(AT_FDCWD, "./27/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5076] fstat(4, [pid 5077] getdents64(4, [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5586] set_robust_list(0x5555571745e0, 24 [pid 5077] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5076] getdents64(4, [pid 5586] <... set_robust_list resumed>) = 0 [pid 5077] close(4 [pid 5076] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5586] chdir("./28" [pid 5077] <... close resumed>) = 0 [pid 5076] getdents64(4, [pid 5586] <... chdir resumed>) = 0 [pid 5077] rmdir("./28/file0" [pid 5076] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5586] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5077] <... rmdir resumed>) = 0 [pid 5076] close(4 [pid 5074] <... umount2 resumed>) = 0 [pid 5586] <... prctl resumed>) = 0 [pid 5077] getdents64(3, [pid 5076] <... close resumed>) = 0 [pid 5586] setpgid(0, 0 [pid 5077] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5076] rmdir("./27/file0" [pid 5074] umount2("./27/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5586] <... setpgid resumed>) = 0 [pid 5077] close(3 [pid 5076] <... rmdir resumed>) = 0 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5586] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5077] <... close resumed>) = 0 [pid 5076] getdents64(3, [pid 5074] lstat("./27/file0", [pid 5586] <... openat resumed>) = 3 [pid 5077] rmdir("./28" [pid 5076] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5586] write(3, "1000", 4 [pid 5076] close(3 [pid 5074] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5586] <... write resumed>) = 4 [pid 5077] <... rmdir resumed>) = 0 [pid 5076] <... close resumed>) = 0 [pid 5074] umount2("./27/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5586] close(3 [pid 5077] mkdir("./29", 0777 [pid 5076] rmdir("./27" [pid 5586] <... close resumed>) = 0 [pid 5077] <... mkdir resumed>) = 0 [pid 5076] <... rmdir resumed>) = 0 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5586] symlink("/dev/binderfs", "./binderfs" [pid 5077] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5076] mkdir("./28", 0777 [pid 5074] openat(AT_FDCWD, "./27/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5586] <... symlink resumed>) = 0 [pid 5077] <... openat resumed>) = 3 [pid 5076] <... mkdir resumed>) = 0 [pid 5586] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] ioctl(3, LOOP_CLR_FD [pid 5076] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5074] <... openat resumed>) = 4 [pid 5586] <... futex resumed>) = 0 [pid 5077] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5076] <... openat resumed>) = 3 [pid 5586] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5076] ioctl(3, LOOP_CLR_FD [pid 5074] fstat(4, [pid 5077] close(3 [pid 5076] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5586] <... mmap resumed>) = 0x7fdb72913000 [pid 5077] <... close resumed>) = 0 [pid 5076] close(3 [pid 5074] getdents64(4, [pid 5586] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] <... close resumed>) = 0 [pid 5586] <... mprotect resumed>) = 0 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5074] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5586] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5074] getdents64(4, [pid 5077] <... clone resumed>, child_tidptr=0x5555571745d0) = 5587 [pid 5076] <... clone resumed>, child_tidptr=0x5555571745d0) = 5588 [pid 5074] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5586] <... clone resumed>, parent_tid=[5589], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5589 [pid 5074] close(4 [pid 5586] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5074] <... close resumed>) = 0 [pid 5586] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5074] rmdir("./27/file0"./strace-static-x86_64: Process 5588 attached [pid 5588] set_robust_list(0x5555571745e0, 24 [pid 5074] <... rmdir resumed>) = 0 ./strace-static-x86_64: Process 5589 attached ./strace-static-x86_64: Process 5587 attached [pid 5588] <... set_robust_list resumed>) = 0 [pid 5588] chdir("./28") = 0 [pid 5588] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5589] set_robust_list(0x7fdb729339e0, 24 [pid 5588] setpgid(0, 0 [pid 5587] set_robust_list(0x5555571745e0, 24 [pid 5074] getdents64(3, [pid 5589] <... set_robust_list resumed>) = 0 [pid 5588] <... setpgid resumed>) = 0 [pid 5589] memfd_create("syzkaller", 0 [pid 5588] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5074] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5588] <... openat resumed>) = 3 [pid 5074] close(3 [pid 5588] write(3, "1000", 4 [pid 5589] <... memfd_create resumed>) = 3 [pid 5588] <... write resumed>) = 4 [pid 5587] <... set_robust_list resumed>) = 0 [pid 5074] <... close resumed>) = 0 [pid 5589] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5588] close(3) = 0 [pid 5588] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5588] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5588] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5588] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5589] <... mmap resumed>) = 0x7fdb6a513000 [pid 5588] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5587] chdir("./29" [pid 5074] rmdir("./27" [pid 5588] <... clone resumed>, parent_tid=[5590], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5590 [pid 5588] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5074] <... rmdir resumed>) = 0 [pid 5588] <... futex resumed>) = 0 [pid 5587] <... chdir resumed>) = 0 [pid 5074] mkdir("./28", 0777 [pid 5588] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5587] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5074] <... mkdir resumed>) = 0 [pid 5587] setpgid(0, 0 [pid 5074] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5587] <... setpgid resumed>) = 0 ./strace-static-x86_64: Process 5590 attached [pid 5587] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5590] set_robust_list(0x7fdb729339e0, 24 [pid 5587] <... openat resumed>) = 3 [pid 5590] <... set_robust_list resumed>) = 0 [pid 5587] write(3, "1000", 4 [pid 5590] memfd_create("syzkaller", 0 [pid 5587] <... write resumed>) = 4 [pid 5590] <... memfd_create resumed>) = 3 [pid 5587] close(3 [pid 5590] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5587] <... close resumed>) = 0 [pid 5590] <... mmap resumed>) = 0x7fdb6a513000 [pid 5587] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5587] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5587] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5587] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5074] <... openat resumed>) = 3 [pid 5587] <... mprotect resumed>) = 0 [pid 5074] ioctl(3, LOOP_CLR_FD [pid 5587] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5074] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5074] close(3 [pid 5587] <... clone resumed>, parent_tid=[5591], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5591 [ 97.836046][ T5577] REISERFS (device loop5): Using r5 hash to sort names [ 97.849029][ T5577] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 5074] <... close resumed>) = 0 [pid 5587] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5075] <... umount2 resumed>) = 0 [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5587] <... futex resumed>) = 0 ./strace-static-x86_64: Process 5591 attached [pid 5587] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5074] <... clone resumed>, child_tidptr=0x5555571745d0) = 5592 [pid 5591] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5591] memfd_create("syzkaller", 0) = 3 [pid 5577] <... mount resumed>) = 0 ./strace-static-x86_64: Process 5592 attached [pid 5591] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5577] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5592] set_robust_list(0x5555571745e0, 24 [pid 5591] <... mmap resumed>) = 0x7fdb6a513000 [pid 5577] <... openat resumed>) = 3 [pid 5592] <... set_robust_list resumed>) = 0 [pid 5577] chdir("./file0" [pid 5075] umount2("./26/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5592] chdir("./28" [pid 5577] <... chdir resumed>) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5592] <... chdir resumed>) = 0 [pid 5577] ioctl(4, LOOP_CLR_FD [pid 5075] lstat("./26/file0", [pid 5592] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5577] <... ioctl resumed>) = 0 [pid 5592] <... prctl resumed>) = 0 [pid 5577] close(4 [pid 5075] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5592] setpgid(0, 0 [pid 5577] <... close resumed>) = 0 [pid 5592] <... setpgid resumed>) = 0 [pid 5592] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5577] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5075] umount2("./26/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5592] <... openat resumed>) = 3 [pid 5577] <... futex resumed>) = 1 [pid 5573] <... futex resumed>) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5592] write(3, "1000", 4 [pid 5577] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5573] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5075] openat(AT_FDCWD, "./26/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5592] <... write resumed>) = 4 [pid 5577] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5573] <... futex resumed>) = 0 [pid 5075] <... openat resumed>) = 4 [pid 5592] close(3 [pid 5589] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5577] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5573] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5075] fstat(4, [pid 5592] <... close resumed>) = 0 [pid 5592] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5592] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5577] <... open resumed>) = 4 [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5592] <... futex resumed>) = 0 [pid 5577] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5075] getdents64(4, [pid 5592] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5577] <... futex resumed>) = 1 [pid 5573] <... futex resumed>) = 0 [pid 5075] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5592] <... mmap resumed>) = 0x7fdb72913000 [pid 5577] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5573] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5075] getdents64(4, [pid 5592] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5577] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5573] <... futex resumed>) = 0 [pid 5075] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5592] <... mprotect resumed>) = 0 [pid 5577] ioctl(4, FS_IOC_GETVERSION [pid 5573] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5075] close(4 [pid 5592] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5577] <... ioctl resumed>, 0x20000080) = 0 [pid 5075] <... close resumed>) = 0 [pid 5577] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5075] rmdir("./26/file0" [pid 5592] <... clone resumed>, parent_tid=[5593], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5593 [pid 5577] <... futex resumed>) = 1 [pid 5573] <... futex resumed>) = 0 [pid 5592] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5591] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5577] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5573] exit_group(0 [pid 5075] <... rmdir resumed>) = 0 [pid 5592] <... futex resumed>) = 0 [pid 5577] <... futex resumed>) = ? [pid 5573] <... exit_group resumed>) = ? [pid 5075] getdents64(3, ./strace-static-x86_64: Process 5593 attached [pid 5592] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5577] +++ exited with 0 +++ [pid 5593] set_robust_list(0x7fdb729339e0, 24 [pid 5573] +++ exited with 0 +++ [pid 5075] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5593] <... set_robust_list resumed>) = 0 [pid 5075] close(3 [pid 5593] memfd_create("syzkaller", 0 [pid 5590] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5573, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} --- [pid 5075] <... close resumed>) = 0 [pid 5593] <... memfd_create resumed>) = 3 [pid 5079] umount2("./26", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] rmdir("./26" [pid 5593] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5593] <... mmap resumed>) = 0x7fdb6a513000 [pid 5079] openat(AT_FDCWD, "./26", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] <... rmdir resumed>) = 0 [pid 5079] <... openat resumed>) = 3 [pid 5075] mkdir("./27", 0777 [pid 5079] fstat(3, [pid 5075] <... mkdir resumed>) = 0 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5079] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5075] <... openat resumed>) = 3 [pid 5079] umount2("./26/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] ioctl(3, LOOP_CLR_FD [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5079] lstat("./26/binderfs", [pid 5075] close(3 [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] <... close resumed>) = 0 [pid 5079] unlink("./26/binderfs") = 0 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] umount2("./26/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... clone resumed>, child_tidptr=0x5555571745d0) = 5594 ./strace-static-x86_64: Process 5594 attached [pid 5594] set_robust_list(0x5555571745e0, 24) = 0 [pid 5594] chdir("./27") = 0 [pid 5594] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5594] setpgid(0, 0) = 0 [pid 5594] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5593] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5594] write(3, "1000", 4) = 4 [pid 5594] close(3) = 0 [pid 5594] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5594] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5594] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5594] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5594] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5595], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5595 [pid 5594] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5594] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5595 attached [pid 5595] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5595] memfd_create("syzkaller", 0) = 3 [pid 5595] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [pid 5589] <... write resumed>) = 4194304 [pid 5589] munmap(0x7fdb6a513000, 4194304) = 0 [pid 5589] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5589] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5589] close(3) = 0 [pid 5589] mkdir("./file0", 0777) = 0 [pid 5589] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5590] <... write resumed>) = 4194304 [pid 5591] <... write resumed>) = 4194304 [pid 5590] munmap(0x7fdb6a513000, 4194304 [pid 5591] munmap(0x7fdb6a513000, 4194304 [pid 5590] <... munmap resumed>) = 0 [pid 5590] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5591] <... munmap resumed>) = 0 [ 98.119235][ T5589] loop4: detected capacity change from 0 to 8192 [pid 5590] <... openat resumed>) = 4 [pid 5595] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5591] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5590] ioctl(4, LOOP_SET_FD, 3 [pid 5079] <... umount2 resumed>) = 0 [pid 5593] <... write resumed>) = 4194304 [pid 5593] munmap(0x7fdb6a513000, 4194304 [pid 5591] <... openat resumed>) = 4 [pid 5590] <... ioctl resumed>) = 0 [pid 5079] umount2("./26/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5593] <... munmap resumed>) = 0 [pid 5591] ioctl(4, LOOP_SET_FD, 3 [pid 5590] close(3 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5590] <... close resumed>) = 0 [pid 5590] mkdir("./file0", 0777 [pid 5593] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5591] <... ioctl resumed>) = 0 [ 98.180879][ T5589] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 98.195764][ T5589] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 98.205444][ T5590] loop2: detected capacity change from 0 to 8192 [ 98.212416][ T5589] REISERFS (device loop4): using ordered data mode [ 98.220663][ T5591] loop3: detected capacity change from 0 to 8192 [pid 5079] lstat("./26/file0", [pid 5590] <... mkdir resumed>) = 0 [pid 5593] <... openat resumed>) = 4 [pid 5591] close(3 [pid 5590] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5079] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5593] ioctl(4, LOOP_SET_FD, 3 [pid 5591] <... close resumed>) = 0 [pid 5079] umount2("./26/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5591] mkdir("./file0", 0777) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5591] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5593] <... ioctl resumed>) = 0 [pid 5079] openat(AT_FDCWD, "./26/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [ 98.227339][ T5589] reiserfs: using flush barriers [ 98.235503][ T5593] loop0: detected capacity change from 0 to 8192 [ 98.245584][ T5590] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 98.246907][ T5589] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5079] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5593] close(3 [pid 5079] getdents64(4, [pid 5593] <... close resumed>) = 0 [pid 5079] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5593] mkdir("./file0", 0777 [pid 5079] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5079] close(4 [pid 5593] <... mkdir resumed>) = 0 [pid 5079] <... close resumed>) = 0 [pid 5593] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5079] rmdir("./26/file0") = 0 [pid 5079] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5079] close(3) = 0 [pid 5079] rmdir("./26") = 0 [pid 5079] mkdir("./27", 0777) = 0 [pid 5079] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5079] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5079] close(3 [pid 5595] <... write resumed>) = 4194304 [pid 5079] <... close resumed>) = 0 [pid 5595] munmap(0x7fdb6a513000, 4194304 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5595] <... munmap resumed>) = 0 [ 98.263887][ T5591] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 98.276677][ T5589] REISERFS (device loop4): checking transaction log (loop4) [ 98.307831][ T5590] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 98.317295][ T5590] REISERFS (device loop2): using ordered data mode [ 98.323953][ T5590] reiserfs: using flush barriers ./strace-static-x86_64: Process 5600 attached [pid 5595] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5079] <... clone resumed>, child_tidptr=0x5555571745d0) = 5600 [ 98.327808][ T5593] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 98.332012][ T5591] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 98.343737][ T5590] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 98.351517][ T5591] REISERFS (device loop3): using ordered data mode [ 98.374430][ T5591] reiserfs: using flush barriers [pid 5595] ioctl(4, LOOP_SET_FD, 3 [pid 5600] set_robust_list(0x5555571745e0, 24) = 0 [pid 5600] chdir("./27") = 0 [ 98.374836][ T5595] loop1: detected capacity change from 0 to 8192 [ 98.380492][ T5593] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 98.386622][ T5591] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 98.395236][ T5593] REISERFS (device loop0): using ordered data mode [ 98.420135][ T5593] reiserfs: using flush barriers [pid 5600] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5595] <... ioctl resumed>) = 0 [pid 5595] close(3) = 0 [pid 5595] mkdir("./file0", 0777 [pid 5600] <... prctl resumed>) = 0 [pid 5595] <... mkdir resumed>) = 0 [pid 5595] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5600] setpgid(0, 0) = 0 [pid 5600] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [ 98.427094][ T5593] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 98.440572][ T5590] REISERFS (device loop2): checking transaction log (loop2) [ 98.445208][ T5591] REISERFS (device loop3): checking transaction log (loop3) [ 98.460947][ T5595] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 98.462895][ T5593] REISERFS (device loop0): checking transaction log (loop0) [pid 5600] write(3, "1000", 4) = 4 [pid 5600] close(3) = 0 [pid 5600] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5600] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5600] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5600] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5600] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5602], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5602 [pid 5600] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5600] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5602 attached [ 98.483471][ T5595] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 98.496556][ T5595] REISERFS (device loop1): using ordered data mode [ 98.506906][ T5595] reiserfs: using flush barriers [pid 5602] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5602] memfd_create("syzkaller", 0) = 3 [pid 5602] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [ 98.549168][ T5595] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 98.579082][ T5589] REISERFS (device loop4): Using r5 hash to sort names [pid 5591] <... mount resumed>) = 0 [ 98.641472][ T5591] REISERFS (device loop3): Using r5 hash to sort names [ 98.652670][ T5589] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 98.656653][ T5595] REISERFS (device loop1): checking transaction log (loop1) [ 98.671487][ T5591] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 98.681644][ T5590] REISERFS (device loop2): Using r5 hash to sort names [pid 5591] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5589] <... mount resumed>) = 0 [pid 5591] <... openat resumed>) = 3 [pid 5591] chdir("./file0") = 0 [pid 5591] ioctl(4, LOOP_CLR_FD) = 0 [pid 5591] close(4) = 0 [pid 5589] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5591] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5589] <... openat resumed>) = 3 [pid 5591] <... futex resumed>) = 1 [pid 5587] <... futex resumed>) = 0 [pid 5602] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5591] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5589] chdir("./file0" [pid 5587] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5591] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5589] <... chdir resumed>) = 0 [pid 5587] <... futex resumed>) = 0 [pid 5591] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5589] ioctl(4, LOOP_CLR_FD [pid 5587] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5591] <... open resumed>) = 4 [pid 5589] <... ioctl resumed>) = 0 [pid 5591] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5589] close(4 [pid 5591] <... futex resumed>) = 1 [pid 5589] <... close resumed>) = 0 [pid 5587] <... futex resumed>) = 0 [pid 5591] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5589] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [ 98.685453][ T5593] REISERFS (device loop0): Using r5 hash to sort names [ 98.689399][ T5590] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 5587] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5591] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5589] <... futex resumed>) = 1 [pid 5587] <... futex resumed>) = 0 [pid 5586] <... futex resumed>) = 0 [pid 5591] ioctl(4, FS_IOC_GETVERSION [pid 5589] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5587] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5586] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5591] <... ioctl resumed>, 0x20000080) = 0 [pid 5589] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5586] <... futex resumed>) = 0 [pid 5591] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5589] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5586] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5591] <... futex resumed>) = 1 [pid 5589] <... open resumed>) = 4 [pid 5587] <... futex resumed>) = 0 [pid 5591] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5589] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5587] exit_group(0 [pid 5591] <... futex resumed>) = ? [pid 5589] <... futex resumed>) = 1 [pid 5587] <... exit_group resumed>) = ? [pid 5586] <... futex resumed>) = 0 [pid 5591] +++ exited with 0 +++ [pid 5589] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5587] +++ exited with 0 +++ [pid 5586] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5589] <... futex resumed>) = 0 [pid 5586] <... futex resumed>) = 1 [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5587, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=21 /* 0.21 s */} --- [pid 5589] ioctl(4, FS_IOC_GETVERSION [pid 5586] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5077] restart_syscall(<... resuming interrupted clone ...> [pid 5589] <... ioctl resumed>, 0x20000080) = 0 [pid 5077] <... restart_syscall resumed>) = 0 [pid 5589] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5586] <... futex resumed>) = 0 [pid 5590] <... mount resumed>) = 0 [pid 5589] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5586] exit_group(0 [pid 5077] umount2("./29", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5590] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5589] <... futex resumed>) = ? [pid 5586] <... exit_group resumed>) = ? [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5589] +++ exited with 0 +++ [pid 5586] +++ exited with 0 +++ [pid 5590] <... openat resumed>) = 3 [pid 5078] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5586, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} --- [pid 5077] openat(AT_FDCWD, "./29", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5590] chdir("./file0" [pid 5077] <... openat resumed>) = 3 [pid 5590] <... chdir resumed>) = 0 [pid 5077] fstat(3, [pid 5593] <... mount resumed>) = 0 [pid 5590] ioctl(4, LOOP_CLR_FD [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5593] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5590] <... ioctl resumed>) = 0 [pid 5077] getdents64(3, [pid 5593] <... openat resumed>) = 3 [pid 5590] close(4 [pid 5077] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5593] chdir("./file0" [pid 5590] <... close resumed>) = 0 [pid 5078] umount2("./28", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] umount2("./29/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5593] <... chdir resumed>) = 0 [pid 5590] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5593] ioctl(4, LOOP_CLR_FD [pid 5590] <... futex resumed>) = 1 [pid 5588] <... futex resumed>) = 0 [pid 5078] openat(AT_FDCWD, "./28", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [ 98.734715][ T5593] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5077] lstat("./29/binderfs", [pid 5593] <... ioctl resumed>) = 0 [pid 5590] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5588] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] <... openat resumed>) = 3 [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5593] close(4 [pid 5590] <... open resumed>) = 4 [pid 5588] <... futex resumed>) = 0 [pid 5078] fstat(3, [pid 5077] unlink("./29/binderfs" [pid 5593] <... close resumed>) = 0 [pid 5590] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5588] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5078] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] <... unlink resumed>) = 0 [pid 5593] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5590] <... futex resumed>) = 0 [pid 5588] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5078] getdents64(3, [pid 5077] umount2("./29/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5593] <... futex resumed>) = 1 [pid 5592] <... futex resumed>) = 0 [pid 5590] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5588] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5593] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5592] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5590] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5588] <... futex resumed>) = 0 [pid 5078] umount2("./28/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5593] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5592] <... futex resumed>) = 0 [pid 5590] ioctl(4, FS_IOC_GETVERSION [pid 5588] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5593] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5592] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5590] <... ioctl resumed>, 0x20000080) = 0 [pid 5078] lstat("./28/binderfs", [pid 5593] <... open resumed>) = 4 [pid 5590] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5593] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5590] <... futex resumed>) = 1 [pid 5588] <... futex resumed>) = 0 [pid 5078] unlink("./28/binderfs" [pid 5593] <... futex resumed>) = 1 [pid 5592] <... futex resumed>) = 0 [pid 5590] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5588] exit_group(0 [pid 5078] <... unlink resumed>) = 0 [pid 5593] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5592] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5590] <... futex resumed>) = ? [pid 5588] <... exit_group resumed>) = ? [pid 5078] umount2("./28/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5593] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5592] <... futex resumed>) = 0 [pid 5590] +++ exited with 0 +++ [pid 5593] ioctl(4, FS_IOC_GETVERSION [pid 5592] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5588] +++ exited with 0 +++ [pid 5593] <... ioctl resumed>, 0x20000080) = 0 [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5588, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- [pid 5593] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5592] <... futex resumed>) = 0 [pid 5593] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5592] exit_group(0 [pid 5076] umount2("./28", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5593] <... futex resumed>) = ? [pid 5592] <... exit_group resumed>) = ? [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5593] +++ exited with 0 +++ [pid 5592] +++ exited with 0 +++ [pid 5076] openat(AT_FDCWD, "./28", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5076] fstat(3, [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5592, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=19 /* 0.19 s */} --- [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] umount2("./28", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] getdents64(3, [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5074] openat(AT_FDCWD, "./28", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] umount2("./28/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] <... openat resumed>) = 3 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] fstat(3, [pid 5076] lstat("./28/binderfs", [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5074] getdents64(3, [pid 5076] unlink("./28/binderfs" [pid 5074] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5076] <... unlink resumed>) = 0 [pid 5074] umount2("./28/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] umount2("./28/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] lstat("./28/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5074] unlink("./28/binderfs") = 0 [pid 5074] umount2("./28/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5602] <... write resumed>) = 4194304 [pid 5602] munmap(0x7fdb6a513000, 4194304) = 0 [pid 5602] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 5602] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5602] close(3) = 0 [pid 5602] mkdir("./file0", 0777 [pid 5076] <... umount2 resumed>) = 0 [pid 5076] umount2("./28/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5076] lstat("./28/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] umount2("./28/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5076] openat(AT_FDCWD, "./28/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5076] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5076] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5076] close(4) = 0 [pid 5076] rmdir("./28/file0") = 0 [pid 5076] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5076] close(3) = 0 [pid 5076] rmdir("./28") = 0 [pid 5076] mkdir("./29", 0777) = 0 [pid 5076] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5602] <... mkdir resumed>) = 0 [ 98.889615][ T5602] loop5: detected capacity change from 0 to 8192 [ 98.945625][ T5602] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 98.998817][ T5602] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 99.008520][ T5602] REISERFS (device loop5): using ordered data mode [ 99.009085][ T5595] REISERFS (device loop1): Using r5 hash to sort names [ 99.015467][ T5602] reiserfs: using flush barriers [pid 5602] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5074] <... umount2 resumed>) = 0 [pid 5595] <... mount resumed>) = 0 [pid 5595] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5074] umount2("./28/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5595] <... openat resumed>) = 3 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5595] chdir("./file0" [pid 5074] lstat("./28/file0", [pid 5595] <... chdir resumed>) = 0 [pid 5076] <... openat resumed>) = 3 [pid 5074] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5595] ioctl(4, LOOP_CLR_FD [pid 5076] ioctl(3, LOOP_CLR_FD [pid 5074] umount2("./28/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5595] <... ioctl resumed>) = 0 [pid 5076] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5595] close(4 [pid 5076] close(3 [pid 5074] openat(AT_FDCWD, "./28/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5595] <... close resumed>) = 0 [pid 5076] <... close resumed>) = 0 [pid 5074] <... openat resumed>) = 4 [pid 5595] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5074] fstat(4, [pid 5595] <... futex resumed>) = 1 [pid 5594] <... futex resumed>) = 0 [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5595] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5594] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5076] <... clone resumed>, child_tidptr=0x5555571745d0) = 5605 [pid 5074] getdents64(4, [pid 5595] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5594] <... futex resumed>) = 0 [pid 5074] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5595] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5594] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5074] getdents64(4, [pid 5595] <... open resumed>) = 4 [pid 5074] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5595] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5074] close(4 [pid 5595] <... futex resumed>) = 1 [pid 5594] <... futex resumed>) = 0 [pid 5074] <... close resumed>) = 0 [pid 5595] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5594] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5074] rmdir("./28/file0" [pid 5595] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5594] <... futex resumed>) = 0 [pid 5077] <... umount2 resumed>) = 0 [pid 5074] <... rmdir resumed>) = 0 [ 99.034598][ T5602] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 99.051863][ T5595] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 99.071620][ T5602] REISERFS (device loop5): checking transaction log (loop5) ./strace-static-x86_64: Process 5605 attached [pid 5595] ioctl(4, FS_IOC_GETVERSION [pid 5594] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5074] getdents64(3, [pid 5605] set_robust_list(0x5555571745e0, 24 [pid 5595] <... ioctl resumed>, 0x20000080) = 0 [pid 5077] umount2("./29/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5595] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] close(3 [pid 5605] <... set_robust_list resumed>) = 0 [pid 5595] <... futex resumed>) = 1 [pid 5594] <... futex resumed>) = 0 [pid 5078] <... umount2 resumed>) = 0 [pid 5077] lstat("./29/file0", [pid 5074] <... close resumed>) = 0 [pid 5605] chdir("./29" [pid 5595] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5594] exit_group(0 [pid 5077] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] rmdir("./28" [pid 5605] <... chdir resumed>) = 0 [pid 5595] <... futex resumed>) = ? [pid 5594] <... exit_group resumed>) = ? [pid 5077] umount2("./29/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] <... rmdir resumed>) = 0 [pid 5605] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5595] +++ exited with 0 +++ [pid 5594] +++ exited with 0 +++ [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] mkdir("./29", 0777 [pid 5605] <... prctl resumed>) = 0 [pid 5078] umount2("./28/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] openat(AT_FDCWD, "./29/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5074] <... mkdir resumed>) = 0 [pid 5605] setpgid(0, 0 [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... openat resumed>) = 4 [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5594, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=17 /* 0.17 s */} --- [pid 5074] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5605] <... setpgid resumed>) = 0 [pid 5078] lstat("./28/file0", [pid 5077] fstat(4, [pid 5075] restart_syscall(<... resuming interrupted clone ...> [pid 5074] <... openat resumed>) = 3 [pid 5605] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5078] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] <... restart_syscall resumed>) = 0 [pid 5074] ioctl(3, LOOP_CLR_FD [pid 5605] <... openat resumed>) = 3 [pid 5078] umount2("./28/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] getdents64(4, [pid 5074] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5605] write(3, "1000", 4 [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5074] close(3 [pid 5605] <... write resumed>) = 4 [pid 5078] openat(AT_FDCWD, "./28/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] getdents64(4, [pid 5075] umount2("./27", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] <... close resumed>) = 0 [pid 5605] close(3 [pid 5078] <... openat resumed>) = 4 [pid 5077] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5605] <... close resumed>) = 0 [pid 5078] fstat(4, [pid 5077] close(4 [pid 5075] openat(AT_FDCWD, "./27", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5605] symlink("/dev/binderfs", "./binderfs" [pid 5078] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] <... close resumed>) = 0 [pid 5075] <... openat resumed>) = 3 [pid 5074] <... clone resumed>, child_tidptr=0x5555571745d0) = 5606 [pid 5605] <... symlink resumed>) = 0 [pid 5078] getdents64(4, [pid 5077] rmdir("./29/file0" [pid 5075] fstat(3, [pid 5078] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5077] <... rmdir resumed>) = 0 [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] getdents64(4, [pid 5077] getdents64(3, [pid 5075] getdents64(3, [pid 5078] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5077] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5075] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5078] close(4 [pid 5077] close(3 [pid 5075] umount2("./27/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5605] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 5606 attached ) = 0 [pid 5078] <... close resumed>) = 0 [pid 5077] <... close resumed>) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5606] set_robust_list(0x5555571745e0, 24 [pid 5605] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5078] rmdir("./28/file0" [pid 5077] rmdir("./29" [pid 5075] lstat("./27/binderfs", [pid 5606] <... set_robust_list resumed>) = 0 [pid 5605] <... mmap resumed>) = 0x7fdb72913000 [pid 5078] <... rmdir resumed>) = 0 [pid 5077] <... rmdir resumed>) = 0 [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5078] getdents64(3, [pid 5077] mkdir("./30", 0777 [pid 5075] unlink("./27/binderfs" [pid 5078] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5077] <... mkdir resumed>) = 0 [pid 5075] <... unlink resumed>) = 0 [pid 5078] close(3 [pid 5077] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5075] umount2("./27/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5078] <... close resumed>) = 0 [pid 5077] <... openat resumed>) = 3 [pid 5078] rmdir("./28" [pid 5077] ioctl(3, LOOP_CLR_FD [pid 5606] chdir("./29" [pid 5605] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5602] <... mount resumed>) = 0 [pid 5078] <... rmdir resumed>) = 0 [pid 5077] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5606] <... chdir resumed>) = 0 [pid 5605] <... mprotect resumed>) = 0 [pid 5602] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5078] mkdir("./29", 0777 [pid 5077] close(3 [pid 5606] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5605] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5602] <... openat resumed>) = 3 [pid 5078] <... mkdir resumed>) = 0 [pid 5077] <... close resumed>) = 0 [pid 5606] <... prctl resumed>) = 0 [pid 5602] chdir("./file0" [pid 5078] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5078] <... openat resumed>) = 3 [pid 5606] setpgid(0, 0 [pid 5605] <... clone resumed>, parent_tid=[5608], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5608 [pid 5602] <... chdir resumed>) = 0 [pid 5078] ioctl(3, LOOP_CLR_FD [pid 5077] <... clone resumed>, child_tidptr=0x5555571745d0) = 5609 [pid 5606] <... setpgid resumed>) = 0 [pid 5605] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5602] ioctl(4, LOOP_CLR_FD [pid 5078] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5606] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5605] <... futex resumed>) = 0 [pid 5602] <... ioctl resumed>) = 0 [pid 5078] close(3./strace-static-x86_64: Process 5608 attached [pid 5606] <... openat resumed>) = 3 [pid 5605] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5602] close(4 [pid 5078] <... close resumed>) = 0 ./strace-static-x86_64: Process 5609 attached [pid 5608] set_robust_list(0x7fdb729339e0, 24 [pid 5606] write(3, "1000", 4 [pid 5602] <... close resumed>) = 0 [pid 5078] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5609] set_robust_list(0x5555571745e0, 24 [pid 5608] <... set_robust_list resumed>) = 0 [pid 5606] <... write resumed>) = 4 [pid 5602] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5609] <... set_robust_list resumed>) = 0 [pid 5606] close(3 [pid 5602] <... futex resumed>) = 1 [pid 5600] <... futex resumed>) = 0 [pid 5078] <... clone resumed>, child_tidptr=0x5555571745d0) = 5610 [pid 5609] chdir("./30" [pid 5606] <... close resumed>) = 0 [pid 5602] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5600] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5609] <... chdir resumed>) = 0 [pid 5608] memfd_create("syzkaller", 0 [pid 5606] symlink("/dev/binderfs", "./binderfs" [pid 5602] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5600] <... futex resumed>) = 0 ./strace-static-x86_64: Process 5610 attached [pid 5609] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5608] <... memfd_create resumed>) = 3 [pid 5606] <... symlink resumed>) = 0 [pid 5602] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5600] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5610] set_robust_list(0x5555571745e0, 24 [pid 5609] <... prctl resumed>) = 0 [ 99.187079][ T5602] REISERFS (device loop5): Using r5 hash to sort names [ 99.207292][ T5602] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 5608] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5606] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5602] <... open resumed>) = 4 [pid 5610] <... set_robust_list resumed>) = 0 [pid 5609] setpgid(0, 0 [pid 5608] <... mmap resumed>) = 0x7fdb6a513000 [pid 5606] <... futex resumed>) = 0 [pid 5602] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5610] chdir("./29" [pid 5609] <... setpgid resumed>) = 0 [pid 5606] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5602] <... futex resumed>) = 1 [pid 5600] <... futex resumed>) = 0 [pid 5610] <... chdir resumed>) = 0 [pid 5609] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5606] <... mmap resumed>) = 0x7fdb72913000 [pid 5602] ioctl(4, FS_IOC_GETVERSION [pid 5600] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5610] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5609] <... openat resumed>) = 3 [pid 5606] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5602] <... ioctl resumed>, 0x20000080) = 0 [pid 5600] <... futex resumed>) = 0 [pid 5610] <... prctl resumed>) = 0 [pid 5609] write(3, "1000", 4 [pid 5606] <... mprotect resumed>) = 0 [pid 5602] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5600] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5610] setpgid(0, 0 [pid 5609] <... write resumed>) = 4 [pid 5606] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5602] <... futex resumed>) = 0 [pid 5600] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5610] <... setpgid resumed>) = 0 [pid 5609] close(3 [pid 5602] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5600] exit_group(0 [pid 5610] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5609] <... close resumed>) = 0 [pid 5606] <... clone resumed>, parent_tid=[5611], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5611 [pid 5602] <... futex resumed>) = ? [pid 5600] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5611 attached [pid 5610] <... openat resumed>) = 3 [pid 5609] symlink("/dev/binderfs", "./binderfs" [pid 5606] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5602] +++ exited with 0 +++ [pid 5600] +++ exited with 0 +++ [pid 5611] set_robust_list(0x7fdb729339e0, 24 [pid 5610] write(3, "1000", 4 [pid 5609] <... symlink resumed>) = 0 [pid 5606] <... futex resumed>) = 0 [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5600, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=19 /* 0.19 s */} --- [pid 5611] <... set_robust_list resumed>) = 0 [pid 5610] <... write resumed>) = 4 [pid 5609] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5606] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5611] memfd_create("syzkaller", 0 [pid 5610] close(3 [pid 5609] <... futex resumed>) = 0 [pid 5611] <... memfd_create resumed>) = 3 [pid 5610] <... close resumed>) = 0 [pid 5609] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5611] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5610] symlink("/dev/binderfs", "./binderfs" [pid 5609] <... mmap resumed>) = 0x7fdb72913000 [pid 5611] <... mmap resumed>) = 0x7fdb6a513000 [pid 5610] <... symlink resumed>) = 0 [pid 5609] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5610] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5609] <... mprotect resumed>) = 0 [pid 5079] umount2("./27", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5610] <... futex resumed>) = 0 [pid 5609] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5610] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5079] openat(AT_FDCWD, "./27", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5610] <... mmap resumed>) = 0x7fdb72913000 [pid 5609] <... clone resumed>, parent_tid=[5612], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5612 [pid 5079] <... openat resumed>) = 3 [pid 5610] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5609] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] fstat(3, [pid 5610] <... mprotect resumed>) = 0 [pid 5609] <... futex resumed>) = 0 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5610] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5609] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5608] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5079] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5610] <... clone resumed>, parent_tid=[5613], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5613 [pid 5079] umount2("./27/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5610] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5610] <... futex resumed>) = 0 [pid 5079] lstat("./27/binderfs", [pid 5610] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] unlink("./27/binderfs") = 0 [pid 5079] umount2("./27/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5613 attached ./strace-static-x86_64: Process 5612 attached [pid 5613] set_robust_list(0x7fdb729339e0, 24 [pid 5612] set_robust_list(0x7fdb729339e0, 24 [pid 5613] <... set_robust_list resumed>) = 0 [pid 5612] <... set_robust_list resumed>) = 0 [pid 5613] memfd_create("syzkaller", 0) = 3 [pid 5612] memfd_create("syzkaller", 0 [pid 5613] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5612] <... memfd_create resumed>) = 3 [pid 5613] <... mmap resumed>) = 0x7fdb6a513000 [pid 5612] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [pid 5075] <... umount2 resumed>) = 0 [pid 5075] umount2("./27/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5075] lstat("./27/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] umount2("./27/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] <... umount2 resumed>) = 0 [pid 5075] openat(AT_FDCWD, "./27/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] umount2("./27/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... openat resumed>) = 4 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] lstat("./27/file0", [pid 5075] fstat(4, [pid 5079] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] umount2("./27/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] getdents64(4, [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5079] openat(AT_FDCWD, "./27/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] getdents64(4, [pid 5079] <... openat resumed>) = 4 [pid 5075] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5079] fstat(4, [pid 5075] close(4 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] <... close resumed>) = 0 [pid 5079] getdents64(4, [pid 5075] rmdir("./27/file0" [pid 5079] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5075] <... rmdir resumed>) = 0 [pid 5079] getdents64(4, [pid 5075] getdents64(3, [pid 5079] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5075] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5611] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5079] close(4 [pid 5075] close(3 [pid 5079] <... close resumed>) = 0 [pid 5075] <... close resumed>) = 0 [pid 5079] rmdir("./27/file0" [pid 5075] rmdir("./27" [pid 5079] <... rmdir resumed>) = 0 [pid 5075] <... rmdir resumed>) = 0 [pid 5079] getdents64(3, [pid 5075] mkdir("./28", 0777 [pid 5079] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5075] <... mkdir resumed>) = 0 [pid 5079] close(3 [pid 5075] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5079] <... close resumed>) = 0 [pid 5075] <... openat resumed>) = 3 [pid 5079] rmdir("./27" [pid 5075] ioctl(3, LOOP_CLR_FD [pid 5079] <... rmdir resumed>) = 0 [pid 5075] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5613] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5612] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5079] mkdir("./28", 0777 [pid 5075] close(3 [pid 5079] <... mkdir resumed>) = 0 [pid 5075] <... close resumed>) = 0 [pid 5079] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] <... openat resumed>) = 3 [pid 5079] ioctl(3, LOOP_CLR_FD [pid 5075] <... clone resumed>, child_tidptr=0x5555571745d0) = 5615 [pid 5079] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5079] close(3) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5616 ./strace-static-x86_64: Process 5615 attached [pid 5615] set_robust_list(0x5555571745e0, 24) = 0 [pid 5615] chdir("./28") = 0 [pid 5615] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5615] setpgid(0, 0) = 0 [pid 5615] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5615] write(3, "1000", 4) = 4 [pid 5615] close(3) = 0 [pid 5615] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5615] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5615] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 ./strace-static-x86_64: Process 5616 attached [pid 5615] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5616] set_robust_list(0x5555571745e0, 24 [pid 5615] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5616] <... set_robust_list resumed>) = 0 [pid 5616] chdir("./28" [pid 5615] <... clone resumed>, parent_tid=[5617], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5617 [pid 5616] <... chdir resumed>) = 0 [pid 5615] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5608] <... write resumed>) = 4194304 [pid 5616] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5615] <... futex resumed>) = 0 [pid 5616] <... prctl resumed>) = 0 [pid 5615] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5608] munmap(0x7fdb6a513000, 4194304./strace-static-x86_64: Process 5617 attached [pid 5616] setpgid(0, 0 [pid 5608] <... munmap resumed>) = 0 [pid 5617] set_robust_list(0x7fdb729339e0, 24 [pid 5616] <... setpgid resumed>) = 0 [pid 5608] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5617] <... set_robust_list resumed>) = 0 [pid 5616] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5608] <... openat resumed>) = 4 [pid 5617] memfd_create("syzkaller", 0 [pid 5616] <... openat resumed>) = 3 [pid 5608] ioctl(4, LOOP_SET_FD, 3 [pid 5617] <... memfd_create resumed>) = 3 [pid 5616] write(3, "1000", 4 [pid 5617] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5616] <... write resumed>) = 4 [pid 5617] <... mmap resumed>) = 0x7fdb6a513000 [pid 5616] close(3) = 0 [pid 5611] <... write resumed>) = 4194304 [pid 5616] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5611] munmap(0x7fdb6a513000, 4194304 [pid 5616] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5611] <... munmap resumed>) = 0 [pid 5616] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5611] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5616] <... mmap resumed>) = 0x7fdb72913000 [pid 5611] <... openat resumed>) = 4 [pid 5616] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5611] ioctl(4, LOOP_SET_FD, 3 [pid 5616] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5608] <... ioctl resumed>) = 0 [pid 5608] close(3) = 0 [pid 5608] mkdir("./file0", 0777) = 0 [pid 5616] <... clone resumed>, parent_tid=[5618], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5618 [pid 5608] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5616] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 5618 attached ) = 0 [pid 5618] set_robust_list(0x7fdb729339e0, 24 [pid 5616] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5618] <... set_robust_list resumed>) = 0 [pid 5613] <... write resumed>) = 4194304 [pid 5618] memfd_create("syzkaller", 0) = 3 [pid 5611] <... ioctl resumed>) = 0 [ 99.541212][ T5608] loop2: detected capacity change from 0 to 8192 [ 99.572946][ T5611] loop0: detected capacity change from 0 to 8192 [pid 5618] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5613] munmap(0x7fdb6a513000, 4194304) = 0 [pid 5613] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5618] <... mmap resumed>) = 0x7fdb6a513000 [pid 5617] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5612] <... write resumed>) = 4194304 [pid 5611] close(3 [pid 5613] <... openat resumed>) = 4 [pid 5613] ioctl(4, LOOP_SET_FD, 3 [pid 5612] munmap(0x7fdb6a513000, 4194304 [pid 5611] <... close resumed>) = 0 [pid 5613] <... ioctl resumed>) = 0 [pid 5612] <... munmap resumed>) = 0 [pid 5611] mkdir("./file0", 0777 [pid 5612] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5611] <... mkdir resumed>) = 0 [pid 5612] <... openat resumed>) = 4 [pid 5611] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC, "" [ 99.597669][ T5608] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 99.621252][ T5608] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 99.635190][ T5613] loop4: detected capacity change from 0 to 8192 [pid 5612] ioctl(4, LOOP_SET_FD, 3 [pid 5613] close(3) = 0 [pid 5612] <... ioctl resumed>) = 0 [pid 5617] <... write resumed>) = 4194304 [pid 5618] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5617] munmap(0x7fdb6a513000, 4194304 [pid 5613] mkdir("./file0", 0777 [pid 5612] close(3 [pid 5613] <... mkdir resumed>) = 0 [pid 5612] <... close resumed>) = 0 [pid 5613] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC, "" [ 99.647352][ T5612] loop3: detected capacity change from 0 to 8192 [ 99.668293][ T5611] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 99.681901][ T5608] REISERFS (device loop2): using ordered data mode [pid 5612] mkdir("./file0", 0777) = 0 [pid 5617] <... munmap resumed>) = 0 [pid 5617] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5612] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5617] <... openat resumed>) = 4 [ 99.690757][ T5613] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 99.705123][ T5613] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 99.708786][ T5608] reiserfs: using flush barriers [ 99.717346][ T5613] REISERFS (device loop4): using ordered data mode [ 99.720547][ T5611] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 99.726475][ T5613] reiserfs: using flush barriers [ 99.727727][ T5613] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 99.737747][ T5617] loop1: detected capacity change from 0 to 8192 [ 99.741108][ T5613] REISERFS (device loop4): checking transaction log (loop4) [ 99.771966][ T5612] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 99.798257][ T5608] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 99.811140][ T5612] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 99.825357][ T5612] REISERFS (device loop3): using ordered data mode [ 99.833012][ T5612] reiserfs: using flush barriers [ 99.833154][ T5611] REISERFS (device loop0): using ordered data mode [pid 5617] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5617] close(3) = 0 [pid 5617] mkdir("./file0", 0777) = 0 [pid 5617] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5618] <... write resumed>) = 4194304 [pid 5618] munmap(0x7fdb6a513000, 4194304) = 0 [pid 5618] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 5618] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5618] close(3) = 0 [pid 5618] mkdir("./file0", 0777) = 0 [ 99.841811][ T5608] REISERFS (device loop2): checking transaction log (loop2) [ 99.848591][ T5612] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 99.866926][ T5618] loop5: detected capacity change from 0 to 8192 [ 99.894768][ T5617] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 99.897915][ T5611] reiserfs: using flush barriers [ 99.914915][ T5618] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 99.930059][ T5618] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 99.940411][ T5611] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 99.957647][ T5617] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 99.957887][ T5618] REISERFS (device loop5): using ordered data mode [ 99.974215][ T5611] REISERFS (device loop0): checking transaction log (loop0) [ 99.979385][ T5612] REISERFS (device loop3): checking transaction log (loop3) [ 100.003484][ T5618] reiserfs: using flush barriers [ 100.010925][ T5618] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 100.027386][ T5617] REISERFS (device loop1): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 100.045242][ T5618] REISERFS (device loop5): checking transaction log (loop5) [ 100.053286][ T5617] reiserfs: using flush barriers [ 100.054508][ T5613] REISERFS (device loop4): Using r5 hash to sort names [ 100.071900][ T5617] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 100.072192][ T5613] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 100.092274][ T5617] REISERFS (device loop1): checking transaction log (loop1) [pid 5618] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5613] <... mount resumed>) = 0 [pid 5613] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5613] chdir("./file0") = 0 [pid 5613] ioctl(4, LOOP_CLR_FD) = 0 [pid 5613] close(4) = 0 [pid 5613] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5610] <... futex resumed>) = 0 [ 100.136919][ T5608] REISERFS (device loop2): Using r5 hash to sort names [pid 5613] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5610] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5613] <... open resumed>) = 4 [pid 5610] <... futex resumed>) = 0 [ 100.186867][ T5612] REISERFS (device loop3): Using r5 hash to sort names [ 100.199347][ T5612] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 100.215464][ T5611] REISERFS (device loop0): Using r5 hash to sort names [ 100.219690][ T5608] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 5613] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5610] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5613] <... futex resumed>) = 0 [pid 5610] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5613] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5610] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5613] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5610] <... futex resumed>) = 0 [pid 5613] ioctl(4, FS_IOC_GETVERSION [pid 5610] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5613] <... ioctl resumed>, 0x20000080) = 0 [pid 5613] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5610] <... futex resumed>) = 0 [pid 5613] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5610] exit_group(0 [pid 5613] <... futex resumed>) = ? [pid 5610] <... exit_group resumed>) = ? [pid 5613] +++ exited with 0 +++ [pid 5612] <... mount resumed>) = 0 [pid 5610] +++ exited with 0 +++ [ 100.222677][ T5611] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5612] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5078] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5610, si_uid=0, si_status=0, si_utime=0, si_stime=21 /* 0.21 s */} --- [pid 5612] <... openat resumed>) = 3 [pid 5612] chdir("./file0") = 0 [pid 5612] ioctl(4, LOOP_CLR_FD) = 0 [pid 5612] close(4) = 0 [pid 5078] umount2("./29", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5612] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5612] <... futex resumed>) = 1 [pid 5609] <... futex resumed>) = 0 [pid 5078] openat(AT_FDCWD, "./29", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5612] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5611] <... mount resumed>) = 0 [pid 5609] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] <... openat resumed>) = 3 [pid 5612] <... open resumed>) = 4 [pid 5609] <... futex resumed>) = 0 [pid 5078] fstat(3, [pid 5612] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5609] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5078] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5612] <... futex resumed>) = 0 [pid 5609] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5078] getdents64(3, [pid 5612] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5609] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5612] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5609] <... futex resumed>) = 0 [pid 5078] umount2("./29/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5617] <... mount resumed>) = 0 [pid 5612] ioctl(4, FS_IOC_GETVERSION [pid 5611] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5609] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5608] <... mount resumed>) = 0 [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5617] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5612] <... ioctl resumed>, 0x20000080) = 0 [pid 5611] <... openat resumed>) = 3 [pid 5608] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5078] lstat("./29/binderfs", [pid 5617] <... openat resumed>) = 3 [pid 5612] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5611] chdir("./file0" [pid 5608] <... openat resumed>) = 3 [pid 5078] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5617] chdir("./file0" [pid 5612] <... futex resumed>) = 1 [pid 5611] <... chdir resumed>) = 0 [pid 5609] <... futex resumed>) = 0 [pid 5608] chdir("./file0" [pid 5078] unlink("./29/binderfs" [pid 5617] <... chdir resumed>) = 0 [pid 5612] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5611] ioctl(4, LOOP_CLR_FD [pid 5609] exit_group(0 [pid 5608] <... chdir resumed>) = 0 [pid 5078] <... unlink resumed>) = 0 [pid 5617] ioctl(4, LOOP_CLR_FD [pid 5612] <... futex resumed>) = ? [pid 5611] <... ioctl resumed>) = 0 [pid 5609] <... exit_group resumed>) = ? [ 100.272601][ T5617] REISERFS (device loop1): Using r5 hash to sort names [ 100.293212][ T5617] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [pid 5608] ioctl(4, LOOP_CLR_FD [pid 5078] umount2("./29/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5617] <... ioctl resumed>) = 0 [pid 5612] +++ exited with 0 +++ [pid 5611] close(4 [pid 5609] +++ exited with 0 +++ [pid 5608] <... ioctl resumed>) = 0 [pid 5617] close(4 [pid 5611] <... close resumed>) = 0 [pid 5608] close(4 [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5609, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} --- [pid 5617] <... close resumed>) = 0 [pid 5611] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5608] <... close resumed>) = 0 [pid 5611] <... futex resumed>) = 1 [pid 5606] <... futex resumed>) = 0 [pid 5617] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5611] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5608] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5606] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5617] <... futex resumed>) = 1 [pid 5615] <... futex resumed>) = 0 [pid 5615] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5615] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5611] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5606] <... futex resumed>) = 0 [pid 5618] <... mount resumed>) = 0 [pid 5617] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5611] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5608] <... futex resumed>) = 1 [pid 5606] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5605] <... futex resumed>) = 0 [pid 5618] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5617] <... open resumed>) = 4 [pid 5611] <... open resumed>) = 4 [pid 5608] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5605] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5618] <... openat resumed>) = 3 [pid 5617] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5611] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5608] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5605] <... futex resumed>) = 0 [pid 5618] chdir("./file0" [pid 5617] <... futex resumed>) = 1 [pid 5615] <... futex resumed>) = 0 [pid 5611] <... futex resumed>) = 1 [pid 5608] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5606] <... futex resumed>) = 0 [pid 5605] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5077] umount2("./30", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5618] <... chdir resumed>) = 0 [pid 5617] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5615] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5611] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5608] <... open resumed>) = 4 [pid 5606] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5618] ioctl(4, LOOP_CLR_FD [pid 5617] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5615] <... futex resumed>) = 0 [pid 5611] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5608] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5606] <... futex resumed>) = 0 [pid 5077] openat(AT_FDCWD, "./30", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5618] <... ioctl resumed>) = 0 [pid 5617] ioctl(4, FS_IOC_GETVERSION [pid 5615] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5611] ioctl(4, FS_IOC_GETVERSION [pid 5608] <... futex resumed>) = 1 [pid 5606] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5605] <... futex resumed>) = 0 [pid 5618] close(4 [pid 5617] <... ioctl resumed>, 0x20000080) = 0 [pid 5611] <... ioctl resumed>, 0x20000080) = 0 [pid 5608] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5605] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] <... openat resumed>) = 3 [pid 5618] <... close resumed>) = 0 [pid 5617] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5611] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5608] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5605] <... futex resumed>) = 0 [pid 5077] fstat(3, [pid 5618] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5617] <... futex resumed>) = 1 [pid 5615] <... futex resumed>) = 0 [pid 5611] <... futex resumed>) = 1 [pid 5606] <... futex resumed>) = 0 [pid 5615] exit_group(0 [pid 5611] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5606] exit_group(0 [pid 5618] <... futex resumed>) = 1 [pid 5615] <... exit_group resumed>) = ? [ 100.336866][ T5618] REISERFS (device loop5): Using r5 hash to sort names [ 100.344972][ T5618] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 5611] <... futex resumed>) = ? [pid 5608] ioctl(4, FS_IOC_GETVERSION [pid 5606] <... exit_group resumed>) = ? [pid 5605] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5616] <... futex resumed>) = 0 [pid 5618] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5617] +++ exited with 0 +++ [pid 5616] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5615] +++ exited with 0 +++ [pid 5611] +++ exited with 0 +++ [pid 5608] <... ioctl resumed>, 0x20000080) = 0 [pid 5606] +++ exited with 0 +++ [pid 5077] getdents64(3, [pid 5618] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5616] <... futex resumed>) = 0 [pid 5608] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5618] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5616] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5608] <... futex resumed>) = 1 [pid 5605] <... futex resumed>) = 0 [pid 5077] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5615, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=17 /* 0.17 s */} --- [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5606, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=22 /* 0.22 s */} --- [pid 5618] <... open resumed>) = 4 [pid 5608] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5605] exit_group(0 [pid 5077] umount2("./30/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] restart_syscall(<... resuming interrupted clone ...> [pid 5074] restart_syscall(<... resuming interrupted clone ...> [pid 5618] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5608] <... futex resumed>) = ? [pid 5605] <... exit_group resumed>) = ? [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... restart_syscall resumed>) = 0 [pid 5074] <... restart_syscall resumed>) = 0 [pid 5618] <... futex resumed>) = 1 [pid 5616] <... futex resumed>) = 0 [pid 5608] +++ exited with 0 +++ [pid 5605] +++ exited with 0 +++ [pid 5618] ioctl(4, FS_IOC_GETVERSION [pid 5616] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] lstat("./30/binderfs", [pid 5618] <... ioctl resumed>, 0x20000080) = 0 [pid 5616] <... futex resumed>) = 0 [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5605, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=20 /* 0.20 s */} --- [pid 5618] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5616] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5077] unlink("./30/binderfs" [pid 5076] restart_syscall(<... resuming interrupted clone ...> [pid 5075] umount2("./28", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5618] <... futex resumed>) = 0 [pid 5616] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5077] <... unlink resumed>) = 0 [pid 5076] <... restart_syscall resumed>) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5618] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5616] exit_group(0 [pid 5074] umount2("./29", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5618] <... futex resumed>) = ? [pid 5616] <... exit_group resumed>) = ? [pid 5077] umount2("./30/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] openat(AT_FDCWD, "./28", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5618] +++ exited with 0 +++ [pid 5616] +++ exited with 0 +++ [pid 5075] <... openat resumed>) = 3 [pid 5074] openat(AT_FDCWD, "./29", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] umount2("./29", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5616, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=18 /* 0.18 s */} --- [pid 5079] restart_syscall(<... resuming interrupted clone ...> [pid 5075] fstat(3, [pid 5074] <... openat resumed>) = 3 [pid 5079] <... restart_syscall resumed>) = 0 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] openat(AT_FDCWD, "./29", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] fstat(3, [pid 5079] umount2("./28", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./28", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] <... openat resumed>) = 3 [pid 5075] getdents64(3, [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] <... openat resumed>) = 3 [pid 5076] fstat(3, [pid 5079] fstat(3, [pid 5075] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5074] getdents64(3, [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] umount2("./28/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] getdents64(3, [pid 5076] getdents64(3, [pid 5074] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5079] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5076] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] umount2("./29/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] umount2("./28/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] umount2("./29/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] lstat("./28/binderfs", [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] lstat("./28/binderfs", [pid 5076] lstat("./29/binderfs", [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5074] lstat("./29/binderfs", [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] unlink("./28/binderfs" [pid 5079] unlink("./28/binderfs" [pid 5076] unlink("./29/binderfs" [pid 5074] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] <... unlink resumed>) = 0 [pid 5075] <... unlink resumed>) = 0 [pid 5079] umount2("./28/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... unlink resumed>) = 0 [pid 5074] unlink("./29/binderfs" [pid 5076] umount2("./29/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] umount2("./28/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] <... unlink resumed>) = 0 [pid 5074] umount2("./29/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5078] <... umount2 resumed>) = 0 [pid 5078] umount2("./29/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5078] lstat("./29/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] umount2("./29/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5078] openat(AT_FDCWD, "./29/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5078] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5078] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5078] close(4) = 0 [pid 5078] rmdir("./29/file0") = 0 [pid 5078] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5078] close(3) = 0 [pid 5078] rmdir("./29") = 0 [pid 5078] mkdir("./30", 0777) = 0 [pid 5078] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5078] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5078] close(3) = 0 [pid 5078] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5628 ./strace-static-x86_64: Process 5628 attached [pid 5628] set_robust_list(0x5555571745e0, 24) = 0 [pid 5628] chdir("./30") = 0 [pid 5628] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5628] setpgid(0, 0) = 0 [pid 5628] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5628] write(3, "1000", 4) = 4 [pid 5628] close(3) = 0 [pid 5628] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5628] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5628] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5079] <... umount2 resumed>) = 0 [pid 5628] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5079] umount2("./28/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] lstat("./28/file0", [pid 5628] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5079] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] umount2("./28/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./28/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5628] <... clone resumed>, parent_tid=[5629], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5629 [pid 5628] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] fstat(4, [pid 5628] <... futex resumed>) = 0 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5628] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5079] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5079] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5079] close(4) = 0 [pid 5079] rmdir("./28/file0") = 0 [pid 5079] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5079] close(3./strace-static-x86_64: Process 5629 attached ) = 0 [pid 5079] rmdir("./28" [pid 5629] set_robust_list(0x7fdb729339e0, 24 [pid 5079] <... rmdir resumed>) = 0 [pid 5079] mkdir("./29", 0777 [pid 5629] <... set_robust_list resumed>) = 0 [pid 5079] <... mkdir resumed>) = 0 [pid 5629] memfd_create("syzkaller", 0) = 3 [pid 5629] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5079] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5629] <... mmap resumed>) = 0x7fdb6a513000 [pid 5079] <... openat resumed>) = 3 [pid 5079] ioctl(3, LOOP_CLR_FD) = 0 [pid 5079] close(3) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5630 ./strace-static-x86_64: Process 5630 attached [pid 5630] set_robust_list(0x5555571745e0, 24) = 0 [pid 5630] chdir("./29") = 0 [pid 5630] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5630] setpgid(0, 0) = 0 [pid 5630] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5630] write(3, "1000", 4) = 4 [pid 5630] close(3) = 0 [pid 5630] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5630] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5630] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5630] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5630] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5631], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5631 [pid 5630] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5630] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5631 attached [pid 5631] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5631] memfd_create("syzkaller", 0) = 3 [pid 5075] <... umount2 resumed>) = 0 [pid 5631] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [pid 5077] <... umount2 resumed>) = 0 [pid 5077] umount2("./30/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] lstat("./30/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] umount2("./30/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] openat(AT_FDCWD, "./30/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5077] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5077] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5077] close(4) = 0 [pid 5629] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5077] rmdir("./30/file0") = 0 [pid 5077] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5077] close(3) = 0 [pid 5077] rmdir("./30") = 0 [pid 5076] <... umount2 resumed>) = 0 [pid 5077] mkdir("./31", 0777) = 0 [pid 5077] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5077] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5077] close(3) = 0 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5074] <... umount2 resumed>) = 0 [pid 5077] <... clone resumed>, child_tidptr=0x5555571745d0) = 5632 [pid 5076] umount2("./29/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5076] lstat("./29/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] umount2("./28/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5076] umount2("./29/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5075] lstat("./28/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] openat(AT_FDCWD, "./29/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] umount2("./28/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... openat resumed>) = 4 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] fstat(4, [pid 5075] openat(AT_FDCWD, "./28/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5074] umount2("./29/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] <... openat resumed>) = 4 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] getdents64(4, [pid 5075] fstat(4, [pid 5074] lstat("./29/file0", [pid 5076] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] getdents64(4, [pid 5075] getdents64(4, [pid 5076] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5075] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5074] umount2("./29/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] close(4 [pid 5075] getdents64(4, [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... close resumed>) = 0 [pid 5075] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5074] openat(AT_FDCWD, "./29/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] rmdir("./29/file0" [pid 5075] close(4 [pid 5074] <... openat resumed>) = 4 [pid 5076] <... rmdir resumed>) = 0 [pid 5075] <... close resumed>) = 0 [pid 5074] fstat(4, [pid 5076] getdents64(3, [pid 5075] rmdir("./28/file0" [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5075] <... rmdir resumed>) = 0 [pid 5074] getdents64(4, [pid 5076] close(3 [pid 5075] getdents64(3, [pid 5074] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 ./strace-static-x86_64: Process 5632 attached [pid 5076] <... close resumed>) = 0 [pid 5075] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5074] getdents64(4, [pid 5632] set_robust_list(0x5555571745e0, 24 [pid 5076] rmdir("./29" [pid 5075] close(3 [pid 5074] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5632] <... set_robust_list resumed>) = 0 [pid 5076] <... rmdir resumed>) = 0 [pid 5075] <... close resumed>) = 0 [pid 5074] close(4 [pid 5632] chdir("./31" [pid 5076] mkdir("./30", 0777 [pid 5075] rmdir("./28" [pid 5074] <... close resumed>) = 0 [pid 5632] <... chdir resumed>) = 0 [pid 5076] <... mkdir resumed>) = 0 [pid 5075] <... rmdir resumed>) = 0 [pid 5074] rmdir("./29/file0" [pid 5632] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5076] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5075] mkdir("./29", 0777 [pid 5074] <... rmdir resumed>) = 0 [pid 5632] <... prctl resumed>) = 0 [pid 5076] <... openat resumed>) = 3 [pid 5075] <... mkdir resumed>) = 0 [pid 5074] getdents64(3, [pid 5632] setpgid(0, 0 [pid 5076] ioctl(3, LOOP_CLR_FD [pid 5075] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5074] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5632] <... setpgid resumed>) = 0 [pid 5076] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5075] <... openat resumed>) = 3 [pid 5074] close(3 [pid 5632] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5076] close(3 [pid 5075] ioctl(3, LOOP_CLR_FD [pid 5074] <... close resumed>) = 0 [pid 5632] <... openat resumed>) = 3 [pid 5076] <... close resumed>) = 0 [pid 5075] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5074] rmdir("./29" [pid 5632] write(3, "1000", 4 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] close(3 [pid 5632] <... write resumed>) = 4 [pid 5075] <... close resumed>) = 0 [pid 5632] close(3 [pid 5076] <... clone resumed>, child_tidptr=0x5555571745d0) = 5633 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5632] <... close resumed>) = 0 [pid 5074] <... rmdir resumed>) = 0 [pid 5632] symlink("/dev/binderfs", "./binderfs" [pid 5075] <... clone resumed>, child_tidptr=0x5555571745d0) = 5634 [pid 5632] <... symlink resumed>) = 0 [pid 5632] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5074] mkdir("./30", 0777./strace-static-x86_64: Process 5633 attached [pid 5632] <... futex resumed>) = 0 [pid 5074] <... mkdir resumed>) = 0 [pid 5633] set_robust_list(0x5555571745e0, 24 [pid 5632] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5633] <... set_robust_list resumed>) = 0 [pid 5632] <... mmap resumed>) = 0x7fdb72913000 [pid 5074] openat(AT_FDCWD, "/dev/loop0", O_RDWR./strace-static-x86_64: Process 5634 attached [pid 5633] chdir("./30" [pid 5632] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5634] set_robust_list(0x5555571745e0, 24 [pid 5633] <... chdir resumed>) = 0 [pid 5632] <... mprotect resumed>) = 0 [pid 5074] <... openat resumed>) = 3 [pid 5634] <... set_robust_list resumed>) = 0 [pid 5633] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5632] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5634] chdir("./29" [pid 5633] <... prctl resumed>) = 0 [pid 5074] ioctl(3, LOOP_CLR_FD [pid 5634] <... chdir resumed>) = 0 [pid 5633] setpgid(0, 0 [pid 5632] <... clone resumed>, parent_tid=[5635], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5635 [pid 5631] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5074] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5634] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5633] <... setpgid resumed>) = 0 [pid 5632] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5074] close(3 [pid 5634] <... prctl resumed>) = 0 [pid 5633] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5632] <... futex resumed>) = 0 [pid 5074] <... close resumed>) = 0 [pid 5634] setpgid(0, 0 [pid 5633] <... openat resumed>) = 3 [pid 5632] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5634] <... setpgid resumed>) = 0 [pid 5633] write(3, "1000", 4 [pid 5634] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5633] <... write resumed>) = 4 [pid 5074] <... clone resumed>, child_tidptr=0x5555571745d0) = 5636 ./strace-static-x86_64: Process 5635 attached [pid 5634] <... openat resumed>) = 3 [pid 5633] close(3 [pid 5635] set_robust_list(0x7fdb729339e0, 24 [pid 5634] write(3, "1000", 4 [pid 5633] <... close resumed>) = 0 [pid 5635] <... set_robust_list resumed>) = 0 [pid 5634] <... write resumed>) = 4 [pid 5633] symlink("/dev/binderfs", "./binderfs" [pid 5635] memfd_create("syzkaller", 0 [pid 5634] close(3 [pid 5633] <... symlink resumed>) = 0 [pid 5635] <... memfd_create resumed>) = 3 [pid 5634] <... close resumed>) = 0 [pid 5633] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 5636 attached [pid 5635] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5634] symlink("/dev/binderfs", "./binderfs" [pid 5633] <... futex resumed>) = 0 [pid 5636] set_robust_list(0x5555571745e0, 24 [pid 5634] <... symlink resumed>) = 0 [pid 5633] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5636] <... set_robust_list resumed>) = 0 [pid 5635] <... mmap resumed>) = 0x7fdb6a513000 [pid 5634] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5633] <... mmap resumed>) = 0x7fdb72913000 [pid 5636] chdir("./30" [pid 5634] <... futex resumed>) = 0 [pid 5633] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5636] <... chdir resumed>) = 0 [pid 5634] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5633] <... mprotect resumed>) = 0 [pid 5636] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5634] <... mmap resumed>) = 0x7fdb72913000 [pid 5633] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5636] <... prctl resumed>) = 0 [pid 5634] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5636] setpgid(0, 0 [pid 5634] <... mprotect resumed>) = 0 [pid 5633] <... clone resumed>, parent_tid=[5637], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5637 [pid 5636] <... setpgid resumed>) = 0 [pid 5634] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5633] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5636] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5633] <... futex resumed>) = 0 [pid 5636] <... openat resumed>) = 3 [pid 5634] <... clone resumed>, parent_tid=[5638], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5638 [pid 5633] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5637 attached [pid 5636] write(3, "1000", 4 [pid 5634] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5637] set_robust_list(0x7fdb729339e0, 24 [pid 5636] <... write resumed>) = 4 [pid 5634] <... futex resumed>) = 0 [pid 5637] <... set_robust_list resumed>) = 0 [pid 5636] close(3 [pid 5634] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5638 attached [pid 5637] memfd_create("syzkaller", 0 [pid 5636] <... close resumed>) = 0 [pid 5638] set_robust_list(0x7fdb729339e0, 24 [pid 5637] <... memfd_create resumed>) = 3 [pid 5636] symlink("/dev/binderfs", "./binderfs" [pid 5638] <... set_robust_list resumed>) = 0 [pid 5637] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5636] <... symlink resumed>) = 0 [pid 5638] memfd_create("syzkaller", 0 [pid 5637] <... mmap resumed>) = 0x7fdb6a513000 [pid 5636] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5638] <... memfd_create resumed>) = 3 [pid 5636] <... futex resumed>) = 0 [pid 5638] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5636] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5638] <... mmap resumed>) = 0x7fdb6a513000 [pid 5636] <... mmap resumed>) = 0x7fdb72913000 [pid 5636] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5636] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5639], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5639 [pid 5636] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5636] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5639 attached [pid 5639] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5639] memfd_create("syzkaller", 0) = 3 [pid 5639] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [pid 5629] <... write resumed>) = 4194304 [pid 5629] munmap(0x7fdb6a513000, 4194304) = 0 [pid 5629] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5629] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5629] close(3) = 0 [pid 5629] mkdir("./file0", 0777) = 0 [pid 5629] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC, "" [ 100.932807][ T5629] loop4: detected capacity change from 0 to 8192 [pid 5638] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5635] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5631] <... write resumed>) = 4194304 [pid 5639] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5637] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5631] munmap(0x7fdb6a513000, 4194304) = 0 [pid 5631] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 5631] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5631] close(3) = 0 [pid 5631] mkdir("./file0", 0777) = 0 [ 100.972109][ T5629] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 100.993421][ T5629] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 101.003954][ T5629] REISERFS (device loop4): using ordered data mode [ 101.010607][ T5629] reiserfs: using flush barriers [ 101.015979][ T5631] loop5: detected capacity change from 0 to 8192 [ 101.028973][ T5629] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 101.059149][ T5631] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5631] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5638] <... write resumed>) = 4194304 [pid 5638] munmap(0x7fdb6a513000, 4194304) = 0 [pid 5638] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5638] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5637] <... write resumed>) = 4194304 [pid 5635] <... write resumed>) = 4194304 [pid 5639] <... write resumed>) = 4194304 [pid 5638] close(3 [pid 5637] munmap(0x7fdb6a513000, 4194304 [pid 5635] munmap(0x7fdb6a513000, 4194304 [pid 5638] <... close resumed>) = 0 [pid 5637] <... munmap resumed>) = 0 [pid 5635] <... munmap resumed>) = 0 [pid 5639] munmap(0x7fdb6a513000, 4194304 [pid 5638] mkdir("./file0", 0777 [pid 5637] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5635] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5639] <... munmap resumed>) = 0 [pid 5638] <... mkdir resumed>) = 0 [pid 5637] <... openat resumed>) = 4 [pid 5635] <... openat resumed>) = 4 [ 101.080404][ T5629] REISERFS (device loop4): checking transaction log (loop4) [ 101.096691][ T5638] loop1: detected capacity change from 0 to 8192 [ 101.103948][ T5631] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 101.116919][ T5631] REISERFS (device loop5): using ordered data mode [ 101.125728][ T5631] reiserfs: using flush barriers [pid 5639] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5638] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5637] ioctl(4, LOOP_SET_FD, 3 [pid 5635] ioctl(4, LOOP_SET_FD, 3 [pid 5639] <... openat resumed>) = 4 [ 101.137079][ T5631] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 101.139070][ T5637] loop2: detected capacity change from 0 to 8192 [ 101.161246][ T5638] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 101.167805][ T5639] loop0: detected capacity change from 0 to 8192 [ 101.174603][ T5635] loop3: detected capacity change from 0 to 8192 [pid 5639] ioctl(4, LOOP_SET_FD, 3 [pid 5635] <... ioctl resumed>) = 0 [pid 5639] <... ioctl resumed>) = 0 [pid 5639] close(3) = 0 [pid 5639] mkdir("./file0", 0777) = 0 [pid 5639] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC, "" [ 101.187830][ T5638] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 101.199068][ T5638] REISERFS (device loop1): using ordered data mode [ 101.205823][ T5638] reiserfs: using flush barriers [ 101.206578][ T5639] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 101.212412][ T5631] REISERFS (device loop5): checking transaction log (loop5) [pid 5635] close(3 [pid 5637] <... ioctl resumed>) = 0 [pid 5637] close(3) = 0 [pid 5637] mkdir("./file0", 0777 [pid 5635] <... close resumed>) = 0 [pid 5637] <... mkdir resumed>) = 0 [pid 5637] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5635] mkdir("./file0", 0777) = 0 [ 101.224101][ T5638] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 101.262168][ T5637] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 101.262304][ T5638] REISERFS (device loop1): checking transaction log (loop1) [ 101.284565][ T5639] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 101.294417][ T5639] REISERFS (device loop0): using ordered data mode [ 101.301111][ T5639] reiserfs: using flush barriers [ 101.306222][ T5635] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 101.319556][ T5635] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 101.326767][ T5637] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 101.329341][ T5635] REISERFS (device loop3): using ordered data mode [ 101.345238][ T5635] reiserfs: using flush barriers [ 101.352606][ T5635] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 101.352702][ T5637] REISERFS (device loop2): using ordered data mode [ 101.375454][ T5637] reiserfs: using flush barriers [ 101.375480][ T5639] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 101.381839][ T5637] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 101.413762][ T5637] REISERFS (device loop2): checking transaction log (loop2) [ 101.432926][ T5629] REISERFS (device loop4): Using r5 hash to sort names [ 101.435954][ T5635] REISERFS (device loop3): checking transaction log (loop3) [pid 5635] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5629] <... mount resumed>) = 0 [pid 5629] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5629] chdir("./file0") = 0 [pid 5629] ioctl(4, LOOP_CLR_FD) = 0 [ 101.481702][ T5629] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 101.506439][ T5639] REISERFS (device loop0): checking transaction log (loop0) [pid 5629] close(4) = 0 [pid 5629] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5628] <... futex resumed>) = 0 [pid 5629] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5628] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5629] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5628] <... futex resumed>) = 0 [pid 5629] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5628] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5629] <... open resumed>) = 4 [pid 5629] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5628] <... futex resumed>) = 0 [pid 5629] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5628] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5629] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5628] <... futex resumed>) = 0 [pid 5629] ioctl(4, FS_IOC_GETVERSION [pid 5628] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5629] <... ioctl resumed>, 0x20000080) = 0 [pid 5629] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5628] <... futex resumed>) = 0 [pid 5629] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5628] exit_group(0 [pid 5629] <... futex resumed>) = ? [pid 5628] <... exit_group resumed>) = ? [pid 5629] +++ exited with 0 +++ [pid 5628] +++ exited with 0 +++ [pid 5078] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5628, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- [pid 5078] restart_syscall(<... resuming interrupted clone ...>) = 0 [ 101.555292][ T5637] REISERFS (device loop2): Using r5 hash to sort names [ 101.579371][ T5631] REISERFS (device loop5): Using r5 hash to sort names [pid 5078] umount2("./30", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5078] openat(AT_FDCWD, "./30", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5078] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5078] umount2("./30/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5078] lstat("./30/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5078] unlink("./30/binderfs") = 0 [pid 5078] umount2("./30/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5637] <... mount resumed>) = 0 [pid 5637] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5637] chdir("./file0") = 0 [ 101.606781][ T5637] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 101.621030][ T5631] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 101.635352][ T5638] REISERFS (device loop1): Using r5 hash to sort names [pid 5637] ioctl(4, LOOP_CLR_FD [pid 5631] <... mount resumed>) = 0 [pid 5637] <... ioctl resumed>) = 0 [pid 5631] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5637] close(4) = 0 [pid 5631] <... openat resumed>) = 3 [pid 5637] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5631] chdir("./file0" [pid 5637] <... futex resumed>) = 1 [pid 5633] <... futex resumed>) = 0 [pid 5637] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5633] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5637] <... open resumed>) = 4 [pid 5633] <... futex resumed>) = 0 [pid 5637] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5633] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5637] <... futex resumed>) = 0 [pid 5633] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5631] <... chdir resumed>) = 0 [pid 5637] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5633] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5637] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5633] <... futex resumed>) = 0 [pid 5631] ioctl(4, LOOP_CLR_FD [pid 5637] ioctl(4, FS_IOC_GETVERSION [pid 5633] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5631] <... ioctl resumed>) = 0 [pid 5637] <... ioctl resumed>, 0x20000080) = 0 [pid 5631] close(4 [pid 5637] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5631] <... close resumed>) = 0 [pid 5637] <... futex resumed>) = 1 [pid 5633] <... futex resumed>) = 0 [pid 5631] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5637] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5633] exit_group(0 [pid 5631] <... futex resumed>) = 1 [ 101.653910][ T5638] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [pid 5630] <... futex resumed>) = 0 [pid 5637] <... futex resumed>) = ? [pid 5633] <... exit_group resumed>) = ? [pid 5631] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5630] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5637] +++ exited with 0 +++ [pid 5633] +++ exited with 0 +++ [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5633, si_uid=0, si_status=0, si_utime=0, si_stime=22 /* 0.22 s */} --- [pid 5076] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5635] <... mount resumed>) = 0 [pid 5631] <... futex resumed>) = 0 [pid 5630] <... futex resumed>) = 1 [pid 5631] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5630] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5631] <... open resumed>) = 4 [pid 5076] umount2("./30", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5638] <... mount resumed>) = 0 [pid 5631] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5638] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5631] <... futex resumed>) = 1 [pid 5630] <... futex resumed>) = 0 [pid 5076] openat(AT_FDCWD, "./30", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5638] <... openat resumed>) = 3 [pid 5631] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5630] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5076] <... openat resumed>) = 3 [pid 5638] chdir("./file0" [pid 5631] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5630] <... futex resumed>) = 0 [pid 5076] fstat(3, [pid 5638] <... chdir resumed>) = 0 [pid 5631] ioctl(4, FS_IOC_GETVERSION [pid 5630] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5638] ioctl(4, LOOP_CLR_FD [pid 5631] <... ioctl resumed>, 0x20000080) = 0 [pid 5076] getdents64(3, [pid 5638] <... ioctl resumed>) = 0 [pid 5631] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5076] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5638] close(4 [pid 5631] <... futex resumed>) = 1 [pid 5630] <... futex resumed>) = 0 [pid 5076] umount2("./30/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5638] <... close resumed>) = 0 [pid 5631] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5630] exit_group(0 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5638] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5631] <... futex resumed>) = ? [pid 5630] <... exit_group resumed>) = ? [pid 5076] lstat("./30/binderfs", [pid 5638] <... futex resumed>) = 1 [pid 5635] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5634] <... futex resumed>) = 0 [pid 5631] +++ exited with 0 +++ [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5630] +++ exited with 0 +++ [pid 5638] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5635] <... openat resumed>) = 3 [pid 5634] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5630, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=14 /* 0.14 s */} --- [pid 5076] unlink("./30/binderfs" [pid 5638] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5635] chdir("./file0" [pid 5634] <... futex resumed>) = 0 [pid 5076] <... unlink resumed>) = 0 [pid 5638] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5635] <... chdir resumed>) = 0 [pid 5634] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5076] umount2("./30/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5638] <... open resumed>) = 4 [ 101.724106][ T5635] REISERFS (device loop3): Using r5 hash to sort names [ 101.733891][ T5635] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [pid 5635] ioctl(4, LOOP_CLR_FD [pid 5079] umount2("./29", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5638] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5638] <... futex resumed>) = 1 [pid 5635] <... ioctl resumed>) = 0 [pid 5634] <... futex resumed>) = 0 [pid 5079] openat(AT_FDCWD, "./29", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5638] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5635] close(4 [pid 5634] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] <... openat resumed>) = 3 [pid 5638] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5635] <... close resumed>) = 0 [pid 5634] <... futex resumed>) = 0 [pid 5079] fstat(3, [pid 5638] ioctl(4, FS_IOC_GETVERSION [pid 5635] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5634] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5638] <... ioctl resumed>, 0x20000080) = 0 [pid 5635] <... futex resumed>) = 1 [pid 5632] <... futex resumed>) = 0 [pid 5079] getdents64(3, [pid 5078] <... umount2 resumed>) = 0 [pid 5638] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5638] <... futex resumed>) = 1 [pid 5635] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5634] <... futex resumed>) = 0 [pid 5632] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] umount2("./29/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5078] umount2("./30/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5638] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5635] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5634] exit_group(0 [pid 5632] <... futex resumed>) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5638] <... futex resumed>) = ? [pid 5635] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5634] <... exit_group resumed>) = ? [pid 5632] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5079] lstat("./29/binderfs", [pid 5078] lstat("./30/file0", [pid 5638] +++ exited with 0 +++ [pid 5635] <... open resumed>) = 4 [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5635] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5634] +++ exited with 0 +++ [pid 5079] unlink("./29/binderfs" [pid 5078] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5635] <... futex resumed>) = 1 [pid 5632] <... futex resumed>) = 0 [pid 5079] <... unlink resumed>) = 0 [pid 5078] umount2("./30/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5634, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=13 /* 0.13 s */} --- [pid 5635] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5632] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] umount2("./29/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] restart_syscall(<... resuming interrupted clone ...> [pid 5635] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5632] <... futex resumed>) = 0 [pid 5078] openat(AT_FDCWD, "./30/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] <... restart_syscall resumed>) = 0 [pid 5635] ioctl(4, FS_IOC_GETVERSION [pid 5632] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5078] <... openat resumed>) = 4 [pid 5075] umount2("./29", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5075] openat(AT_FDCWD, "./29", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5075] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5075] umount2("./29/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5075] lstat("./29/binderfs", [pid 5635] <... ioctl resumed>, 0x20000080) = 0 [pid 5078] fstat(4, [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5635] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] unlink("./29/binderfs" [pid 5635] <... futex resumed>) = 1 [pid 5632] <... futex resumed>) = 0 [pid 5078] getdents64(4, [pid 5075] <... unlink resumed>) = 0 [pid 5635] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5632] exit_group(0 [pid 5078] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5075] umount2("./29/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5635] <... futex resumed>) = ? [pid 5632] <... exit_group resumed>) = ? [pid 5078] getdents64(4, [pid 5635] +++ exited with 0 +++ [pid 5639] <... mount resumed>) = 0 [pid 5632] +++ exited with 0 +++ [pid 5078] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5078] close(4 [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5632, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=17 /* 0.17 s */} --- [pid 5078] <... close resumed>) = 0 [pid 5078] rmdir("./30/file0" [pid 5077] umount2("./31", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5078] <... rmdir resumed>) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5639] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5078] getdents64(3, [pid 5077] openat(AT_FDCWD, "./31", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5639] <... openat resumed>) = 3 [pid 5078] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5077] <... openat resumed>) = 3 [pid 5639] chdir("./file0" [pid 5078] close(3 [pid 5077] fstat(3, [pid 5639] <... chdir resumed>) = 0 [pid 5078] <... close resumed>) = 0 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5639] ioctl(4, LOOP_CLR_FD [pid 5078] rmdir("./30" [pid 5077] getdents64(3, [pid 5639] <... ioctl resumed>) = 0 [pid 5078] <... rmdir resumed>) = 0 [pid 5077] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5639] close(4 [pid 5078] mkdir("./31", 0777 [ 101.817442][ T5639] REISERFS (device loop0): Using r5 hash to sort names [ 101.852423][ T5639] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5077] umount2("./31/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5639] <... close resumed>) = 0 [pid 5078] <... mkdir resumed>) = 0 [pid 5077] lstat("./31/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] unlink("./31/binderfs") = 0 [pid 5639] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5077] umount2("./31/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5639] <... futex resumed>) = 1 [pid 5636] <... futex resumed>) = 0 [pid 5078] <... openat resumed>) = 3 [pid 5639] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5636] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] ioctl(3, LOOP_CLR_FD [pid 5639] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5636] <... futex resumed>) = 0 [pid 5078] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5639] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5636] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5078] close(3 [pid 5639] <... open resumed>) = 4 [pid 5078] <... close resumed>) = 0 [pid 5639] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5639] <... futex resumed>) = 1 [pid 5636] <... futex resumed>) = 0 [pid 5639] ioctl(4, FS_IOC_GETVERSION [pid 5636] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5639] <... ioctl resumed>, 0x20000080) = 0 [pid 5636] <... futex resumed>) = 0 [pid 5078] <... clone resumed>, child_tidptr=0x5555571745d0) = 5646 [pid 5639] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5636] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5639] <... futex resumed>) = 0 [pid 5636] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5639] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5636] exit_group(0 [pid 5639] <... futex resumed>) = ? [pid 5636] <... exit_group resumed>) = ? [pid 5639] +++ exited with 0 +++ [pid 5636] +++ exited with 0 +++ [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5636, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=18 /* 0.18 s */} --- [pid 5074] umount2("./30", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] openat(AT_FDCWD, "./30", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5074] fstat(3, ./strace-static-x86_64: Process 5646 attached {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5646] set_robust_list(0x5555571745e0, 24 [pid 5074] getdents64(3, [pid 5646] <... set_robust_list resumed>) = 0 [pid 5074] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5074] umount2("./30/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5646] chdir("./31" [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5646] <... chdir resumed>) = 0 [pid 5074] lstat("./30/binderfs", [pid 5646] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5074] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5646] <... prctl resumed>) = 0 [pid 5076] <... umount2 resumed>) = 0 [pid 5074] unlink("./30/binderfs" [pid 5646] setpgid(0, 0 [pid 5076] umount2("./30/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] <... unlink resumed>) = 0 [pid 5646] <... setpgid resumed>) = 0 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] umount2("./30/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5646] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5076] lstat("./30/file0", [pid 5646] <... openat resumed>) = 3 [pid 5076] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] <... umount2 resumed>) = 0 [pid 5646] write(3, "1000", 4 [pid 5076] umount2("./30/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5646] <... write resumed>) = 4 [pid 5075] umount2("./29/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5646] close(3 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5646] <... close resumed>) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] openat(AT_FDCWD, "./30/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5646] symlink("/dev/binderfs", "./binderfs" [pid 5075] lstat("./29/file0", [pid 5076] <... openat resumed>) = 4 [pid 5646] <... symlink resumed>) = 0 [pid 5076] fstat(4, [pid 5075] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5646] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] umount2("./29/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5646] <... futex resumed>) = 0 [pid 5076] getdents64(4, [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5646] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5076] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5075] openat(AT_FDCWD, "./29/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5646] <... mmap resumed>) = 0x7fdb72913000 [pid 5076] getdents64(4, [pid 5075] <... openat resumed>) = 4 [pid 5646] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5076] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5075] fstat(4, [pid 5646] <... mprotect resumed>) = 0 [pid 5076] close(4 [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5646] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5076] <... close resumed>) = 0 [pid 5075] getdents64(4, [pid 5076] rmdir("./30/file0" [pid 5075] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5646] <... clone resumed>, parent_tid=[5647], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5647 ./strace-static-x86_64: Process 5647 attached [pid 5076] <... rmdir resumed>) = 0 [pid 5646] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5075] getdents64(4, [pid 5646] <... futex resumed>) = 0 [pid 5076] getdents64(3, [pid 5075] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5646] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5076] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5075] close(4 [pid 5076] close(3) = 0 [pid 5075] <... close resumed>) = 0 [pid 5076] rmdir("./30" [pid 5075] rmdir("./29/file0" [pid 5647] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5647] memfd_create("syzkaller", 0 [pid 5076] <... rmdir resumed>) = 0 [pid 5075] <... rmdir resumed>) = 0 [pid 5076] mkdir("./31", 0777 [pid 5075] getdents64(3, [pid 5647] <... memfd_create resumed>) = 3 [pid 5647] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5076] <... mkdir resumed>) = 0 [pid 5075] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5076] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5075] close(3 [pid 5647] <... mmap resumed>) = 0x7fdb6a513000 [pid 5076] <... openat resumed>) = 3 [pid 5075] <... close resumed>) = 0 [pid 5076] ioctl(3, LOOP_CLR_FD [pid 5075] rmdir("./29" [pid 5076] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5079] <... umount2 resumed>) = 0 [pid 5076] close(3 [pid 5075] <... rmdir resumed>) = 0 [pid 5079] umount2("./29/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... close resumed>) = 0 [pid 5075] mkdir("./30", 0777 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] <... mkdir resumed>) = 0 [pid 5075] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... clone resumed>, child_tidptr=0x5555571745d0) = 5648 [pid 5079] lstat("./29/file0", [pid 5075] <... openat resumed>) = 3 [pid 5075] ioctl(3, LOOP_CLR_FD [pid 5079] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5079] umount2("./29/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] close(3 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... close resumed>) = 0 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] openat(AT_FDCWD, "./29/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] <... clone resumed>, child_tidptr=0x5555571745d0) = 5649 [pid 5079] <... openat resumed>) = 4 [pid 5079] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5079] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5079] close(4) = 0 [pid 5079] rmdir("./29/file0"./strace-static-x86_64: Process 5649 attached ) = 0 [pid 5079] getdents64(3, ./strace-static-x86_64: Process 5648 attached [pid 5649] set_robust_list(0x5555571745e0, 24 [pid 5079] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5649] <... set_robust_list resumed>) = 0 [pid 5079] close(3 [pid 5649] chdir("./30" [pid 5648] set_robust_list(0x5555571745e0, 24 [pid 5079] <... close resumed>) = 0 [pid 5649] <... chdir resumed>) = 0 [pid 5079] rmdir("./29" [pid 5649] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5648] <... set_robust_list resumed>) = 0 [pid 5649] <... prctl resumed>) = 0 [pid 5079] <... rmdir resumed>) = 0 [pid 5649] setpgid(0, 0 [pid 5648] chdir("./31" [pid 5079] mkdir("./30", 0777 [pid 5649] <... setpgid resumed>) = 0 [pid 5648] <... chdir resumed>) = 0 [pid 5079] <... mkdir resumed>) = 0 [pid 5649] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5648] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5079] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5649] <... openat resumed>) = 3 [pid 5648] <... prctl resumed>) = 0 [pid 5649] write(3, "1000", 4 [pid 5648] setpgid(0, 0 [pid 5079] <... openat resumed>) = 3 [pid 5649] <... write resumed>) = 4 [pid 5648] <... setpgid resumed>) = 0 [pid 5079] ioctl(3, LOOP_CLR_FD [pid 5649] close(3 [pid 5648] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5649] <... close resumed>) = 0 [pid 5648] <... openat resumed>) = 3 [pid 5079] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5649] symlink("/dev/binderfs", "./binderfs" [pid 5648] write(3, "1000", 4 [pid 5079] close(3 [pid 5649] <... symlink resumed>) = 0 [pid 5648] <... write resumed>) = 4 [pid 5079] <... close resumed>) = 0 [pid 5649] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5648] close(3 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5649] <... futex resumed>) = 0 [pid 5648] <... close resumed>) = 0 [pid 5648] symlink("/dev/binderfs", "./binderfs" [pid 5649] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5648] <... symlink resumed>) = 0 [pid 5649] <... mmap resumed>) = 0x7fdb72913000 [pid 5648] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] <... clone resumed>, child_tidptr=0x5555571745d0) = 5650 [pid 5649] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5648] <... futex resumed>) = 0 [pid 5649] <... mprotect resumed>) = 0 [pid 5648] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0./strace-static-x86_64: Process 5650 attached [pid 5649] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5648] <... mmap resumed>) = 0x7fdb72913000 [pid 5648] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5650] set_robust_list(0x5555571745e0, 24 [pid 5649] <... clone resumed>, parent_tid=[5651], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5651 [pid 5648] <... mprotect resumed>) = 0 ./strace-static-x86_64: Process 5651 attached [pid 5650] <... set_robust_list resumed>) = 0 [pid 5649] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5648] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5651] set_robust_list(0x7fdb729339e0, 24 [pid 5650] chdir("./30" [pid 5649] <... futex resumed>) = 0 [pid 5651] <... set_robust_list resumed>) = 0 [pid 5650] <... chdir resumed>) = 0 [pid 5649] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5648] <... clone resumed>, parent_tid=[5652], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5652 [pid 5647] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5651] memfd_create("syzkaller", 0 [pid 5650] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5648] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] <... umount2 resumed>) = 0 ./strace-static-x86_64: Process 5652 attached [pid 5651] <... memfd_create resumed>) = 3 [pid 5650] <... prctl resumed>) = 0 [pid 5648] <... futex resumed>) = 0 [pid 5077] umount2("./31/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5652] set_robust_list(0x7fdb729339e0, 24 [pid 5651] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5650] setpgid(0, 0 [pid 5648] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5652] <... set_robust_list resumed>) = 0 [pid 5651] <... mmap resumed>) = 0x7fdb6a513000 [pid 5650] <... setpgid resumed>) = 0 [pid 5077] lstat("./31/file0", [pid 5652] memfd_create("syzkaller", 0 [pid 5650] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5077] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5652] <... memfd_create resumed>) = 3 [pid 5650] <... openat resumed>) = 3 [pid 5077] umount2("./31/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5650] write(3, "1000", 4 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5650] <... write resumed>) = 4 [pid 5077] openat(AT_FDCWD, "./31/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5650] close(3 [pid 5652] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5650] <... close resumed>) = 0 [pid 5077] <... openat resumed>) = 4 [pid 5652] <... mmap resumed>) = 0x7fdb6a513000 [pid 5650] symlink("/dev/binderfs", "./binderfs" [pid 5077] fstat(4, [pid 5650] <... symlink resumed>) = 0 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5650] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] getdents64(4, [pid 5650] <... futex resumed>) = 0 [pid 5077] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5650] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5077] getdents64(4, [pid 5650] <... mmap resumed>) = 0x7fdb72913000 [pid 5650] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5077] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5651] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5650] <... mprotect resumed>) = 0 [pid 5077] close(4 [pid 5650] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5077] <... close resumed>) = 0 [pid 5077] rmdir("./31/file0"./strace-static-x86_64: Process 5653 attached [pid 5650] <... clone resumed>, parent_tid=[5653], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5653 [pid 5653] set_robust_list(0x7fdb729339e0, 24 [pid 5650] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] <... rmdir resumed>) = 0 [pid 5653] <... set_robust_list resumed>) = 0 [pid 5650] <... futex resumed>) = 0 [pid 5077] getdents64(3, [pid 5653] memfd_create("syzkaller", 0 [pid 5650] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5653] <... memfd_create resumed>) = 3 [pid 5077] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5653] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5077] close(3) = 0 [pid 5077] rmdir("./31") = 0 [pid 5653] <... mmap resumed>) = 0x7fdb6a513000 [pid 5077] mkdir("./32", 0777) = 0 [pid 5077] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5077] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5077] close(3) = 0 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5654 ./strace-static-x86_64: Process 5654 attached [pid 5654] set_robust_list(0x5555571745e0, 24) = 0 [pid 5654] chdir("./32") = 0 [pid 5652] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5654] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5654] setpgid(0, 0) = 0 [pid 5654] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5654] write(3, "1000", 4) = 4 [pid 5654] close(3) = 0 [pid 5654] symlink("/dev/binderfs", "./binderfs" [pid 5074] <... umount2 resumed>) = 0 [pid 5654] <... symlink resumed>) = 0 [pid 5074] umount2("./30/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5654] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5654] <... futex resumed>) = 0 [pid 5074] lstat("./30/file0", [pid 5654] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5074] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5654] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5074] umount2("./30/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5654] <... mprotect resumed>) = 0 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5654] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5074] openat(AT_FDCWD, "./30/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5654] <... clone resumed>, parent_tid=[5655], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5655 [pid 5074] <... openat resumed>) = 4 [pid 5654] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5653] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5074] fstat(4, [pid 5654] <... futex resumed>) = 0 [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5654] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5074] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 ./strace-static-x86_64: Process 5655 attached [pid 5647] <... write resumed>) = 4194304 [pid 5074] getdents64(4, [pid 5655] set_robust_list(0x7fdb729339e0, 24 [pid 5074] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5074] close(4) = 0 [pid 5655] <... set_robust_list resumed>) = 0 [pid 5074] rmdir("./30/file0" [pid 5655] memfd_create("syzkaller", 0 [pid 5074] <... rmdir resumed>) = 0 [pid 5655] <... memfd_create resumed>) = 3 [pid 5074] getdents64(3, [pid 5655] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5074] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5655] <... mmap resumed>) = 0x7fdb6a513000 [pid 5074] close(3 [pid 5651] <... write resumed>) = 4194304 [pid 5074] <... close resumed>) = 0 [pid 5651] munmap(0x7fdb6a513000, 4194304 [pid 5074] rmdir("./30" [pid 5647] munmap(0x7fdb6a513000, 4194304 [pid 5074] <... rmdir resumed>) = 0 [pid 5651] <... munmap resumed>) = 0 [pid 5647] <... munmap resumed>) = 0 [pid 5074] mkdir("./31", 0777 [pid 5651] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5647] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5651] <... openat resumed>) = 4 [pid 5074] <... mkdir resumed>) = 0 [pid 5074] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5651] ioctl(4, LOOP_SET_FD, 3 [pid 5074] <... openat resumed>) = 3 [pid 5647] <... openat resumed>) = 4 [pid 5647] ioctl(4, LOOP_SET_FD, 3 [pid 5653] <... write resumed>) = 4194304 [pid 5651] <... ioctl resumed>) = 0 [pid 5074] ioctl(3, LOOP_CLR_FD [pid 5651] close(3 [pid 5655] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5653] munmap(0x7fdb6a513000, 4194304 [pid 5651] <... close resumed>) = 0 [pid 5647] <... ioctl resumed>) = 0 [pid 5074] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5653] <... munmap resumed>) = 0 [pid 5651] mkdir("./file0", 0777 [pid 5647] close(3 [pid 5074] close(3 [pid 5653] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5647] <... close resumed>) = 0 [pid 5651] <... mkdir resumed>) = 0 [pid 5647] mkdir("./file0", 0777 [pid 5074] <... close resumed>) = 0 [pid 5647] <... mkdir resumed>) = 0 [pid 5647] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5653] <... openat resumed>) = 4 [pid 5651] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [ 102.334669][ T5651] loop1: detected capacity change from 0 to 8192 [ 102.336406][ T5647] loop4: detected capacity change from 0 to 8192 [pid 5653] ioctl(4, LOOP_SET_FD, 3 [pid 5655] <... write resumed>) = 4194304 [pid 5655] munmap(0x7fdb6a513000, 4194304) = 0 [pid 5655] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 5655] ioctl(4, LOOP_SET_FD, 3./strace-static-x86_64: Process 5658 attached ) = 0 [pid 5653] <... ioctl resumed>) = 0 [pid 5652] <... write resumed>) = 4194304 [pid 5074] <... clone resumed>, child_tidptr=0x5555571745d0) = 5658 [pid 5655] close(3) = 0 [pid 5655] mkdir("./file0", 0777) = 0 [ 102.378820][ T5653] loop5: detected capacity change from 0 to 8192 [ 102.386249][ T5647] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 102.400886][ T5651] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 102.409078][ T5655] loop3: detected capacity change from 0 to 8192 [pid 5655] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5658] set_robust_list(0x5555571745e0, 24 [pid 5653] close(3 [pid 5652] munmap(0x7fdb6a513000, 4194304 [pid 5658] <... set_robust_list resumed>) = 0 [pid 5653] <... close resumed>) = 0 [pid 5652] <... munmap resumed>) = 0 [ 102.414944][ T5647] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 102.427936][ T5651] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 102.430912][ T5647] REISERFS (device loop4): using ordered data mode [ 102.442119][ T5651] REISERFS (device loop1): using ordered data mode [ 102.447456][ T5647] reiserfs: using flush barriers [ 102.456801][ T5651] reiserfs: using flush barriers [ 102.459374][ T5647] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5658] chdir("./31" [pid 5653] mkdir("./file0", 0777 [pid 5652] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5658] <... chdir resumed>) = 0 [pid 5653] <... mkdir resumed>) = 0 [pid 5652] <... openat resumed>) = 4 [ 102.462842][ T5655] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 102.492038][ T5647] REISERFS (device loop4): checking transaction log (loop4) [ 102.495572][ T5651] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 102.515575][ T5655] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [pid 5658] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5653] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5652] ioctl(4, LOOP_SET_FD, 3 [pid 5658] <... prctl resumed>) = 0 [pid 5658] setpgid(0, 0 [pid 5652] <... ioctl resumed>) = 0 [pid 5658] <... setpgid resumed>) = 0 [pid 5652] close(3 [pid 5658] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5652] <... close resumed>) = 0 [pid 5658] <... openat resumed>) = 3 [pid 5652] mkdir("./file0", 0777 [pid 5658] write(3, "1000", 4 [pid 5652] <... mkdir resumed>) = 0 [pid 5658] <... write resumed>) = 4 [pid 5652] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5658] close(3) = 0 [pid 5658] symlink("/dev/binderfs", "./binderfs") = 0 [ 102.515691][ T5655] REISERFS (device loop3): using ordered data mode [ 102.531687][ T5655] reiserfs: using flush barriers [ 102.537711][ T5652] loop2: detected capacity change from 0 to 8192 [ 102.545100][ T5653] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 102.565002][ T5653] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [pid 5658] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5658] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5658] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [ 102.574903][ T5655] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 102.593945][ T5652] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 102.607061][ T5651] REISERFS (device loop1): checking transaction log (loop1) [ 102.608268][ T5652] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 102.615621][ T5653] REISERFS (device loop5): using ordered data mode [pid 5658] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5662], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5662 [pid 5658] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5658] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5662 attached [pid 5662] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5662] memfd_create("syzkaller", 0) = 3 [pid 5662] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [ 102.624853][ T5652] REISERFS (device loop2): using ordered data mode [ 102.644847][ T5655] REISERFS (device loop3): checking transaction log (loop3) [ 102.648672][ T5653] reiserfs: using flush barriers [ 102.661309][ T5652] reiserfs: using flush barriers [ 102.662243][ T5653] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 102.687836][ T5652] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5662] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304) = 4194304 [ 102.746042][ T5647] REISERFS (device loop4): Using r5 hash to sort names [ 102.754519][ T5652] REISERFS (device loop2): checking transaction log (loop2) [ 102.772420][ T5647] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [pid 5647] <... mount resumed>) = 0 [pid 5662] munmap(0x7fdb6a513000, 4194304 [pid 5647] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5647] chdir("./file0") = 0 [pid 5647] ioctl(4, LOOP_CLR_FD) = 0 [pid 5662] <... munmap resumed>) = 0 [pid 5647] close(4) = 0 [pid 5647] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5646] <... futex resumed>) = 0 [pid 5646] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5646] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5662] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5647] <... futex resumed>) = 1 [pid 5662] <... openat resumed>) = 4 [pid 5647] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5662] ioctl(4, LOOP_SET_FD, 3 [pid 5647] <... open resumed>) = 4 [ 102.791364][ T5653] REISERFS (device loop5): checking transaction log (loop5) [pid 5647] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5646] <... futex resumed>) = 0 [pid 5647] ioctl(4, FS_IOC_GETVERSION [pid 5646] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5647] <... ioctl resumed>, 0x20000080) = 0 [pid 5646] <... futex resumed>) = 0 [pid 5647] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5646] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5647] <... futex resumed>) = 0 [pid 5646] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5647] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5646] exit_group(0 [pid 5647] <... futex resumed>) = ? [pid 5646] <... exit_group resumed>) = ? [pid 5647] +++ exited with 0 +++ [pid 5646] +++ exited with 0 +++ [pid 5078] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5646, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=20 /* 0.20 s */} --- [pid 5662] <... ioctl resumed>) = 0 [pid 5078] restart_syscall(<... resuming interrupted clone ...> [pid 5662] close(3) = 0 [pid 5662] mkdir("./file0", 0777) = 0 [pid 5078] <... restart_syscall resumed>) = 0 [ 102.828304][ T5662] loop0: detected capacity change from 0 to 8192 [pid 5662] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5078] umount2("./31", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5078] openat(AT_FDCWD, "./31", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5078] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] getdents64(3, [pid 5651] <... mount resumed>) = 0 [pid 5078] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5651] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5078] umount2("./31/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5651] <... openat resumed>) = 3 [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5651] chdir("./file0" [pid 5078] lstat("./31/binderfs", [pid 5651] <... chdir resumed>) = 0 [pid 5078] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5651] ioctl(4, LOOP_CLR_FD [ 102.872097][ T5651] REISERFS (device loop1): Using r5 hash to sort names [ 102.891002][ T5651] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 102.891158][ T5662] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5078] unlink("./31/binderfs" [pid 5651] <... ioctl resumed>) = 0 [pid 5078] <... unlink resumed>) = 0 [pid 5651] close(4 [pid 5078] umount2("./31/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5651] <... close resumed>) = 0 [pid 5651] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5649] <... futex resumed>) = 0 [pid 5651] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5649] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5651] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5649] <... futex resumed>) = 0 [pid 5651] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5649] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5651] <... open resumed>) = 4 [pid 5651] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5649] <... futex resumed>) = 0 [pid 5651] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5649] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5651] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5649] <... futex resumed>) = 0 [pid 5651] ioctl(4, FS_IOC_GETVERSION [pid 5649] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5651] <... ioctl resumed>, 0x20000080) = 0 [pid 5651] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5649] <... futex resumed>) = 0 [pid 5651] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5649] exit_group(0 [pid 5655] <... mount resumed>) = 0 [pid 5651] <... futex resumed>) = ? [pid 5649] <... exit_group resumed>) = ? [ 102.919795][ T5655] REISERFS (device loop3): Using r5 hash to sort names [ 102.939681][ T5655] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 102.958339][ T5662] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [pid 5651] +++ exited with 0 +++ [pid 5649] +++ exited with 0 +++ [pid 5655] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5649, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=17 /* 0.17 s */} --- [pid 5075] umount2("./30", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5075] openat(AT_FDCWD, "./30", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5075] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5655] chdir("./file0" [pid 5075] getdents64(3, [pid 5655] <... chdir resumed>) = 0 [pid 5075] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5655] ioctl(4, LOOP_CLR_FD [pid 5075] umount2("./30/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5655] <... ioctl resumed>) = 0 [pid 5075] lstat("./30/binderfs", [pid 5655] close(4 [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5655] <... close resumed>) = 0 [pid 5075] unlink("./30/binderfs") = 0 [pid 5075] umount2("./30/file0", MNT_DETACH|UMOUNT_NOFOLLOW [ 102.960247][ T5652] REISERFS (device loop2): Using r5 hash to sort names [ 102.967971][ T5662] REISERFS (device loop0): using ordered data mode [ 103.004371][ T5662] reiserfs: using flush barriers [pid 5655] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5654] <... futex resumed>) = 0 [pid 5655] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5654] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5655] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5654] <... futex resumed>) = 0 [pid 5655] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5654] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5655] <... open resumed>) = 4 [ 103.024484][ T5662] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 103.035980][ T5652] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 5655] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5654] <... futex resumed>) = 0 [pid 5654] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5655] <... futex resumed>) = 1 [pid 5654] <... futex resumed>) = 0 [pid 5655] ioctl(4, FS_IOC_GETVERSION [pid 5654] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5655] <... ioctl resumed>, 0x20000080) = 0 [pid 5655] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5654] <... futex resumed>) = 0 [pid 5655] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5654] exit_group(0) = ? [pid 5655] <... futex resumed>) = ? [pid 5655] +++ exited with 0 +++ [pid 5654] +++ exited with 0 +++ [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5654, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=16 /* 0.16 s */} --- [pid 5077] umount2("./32", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] openat(AT_FDCWD, "./32", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5077] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5077] umount2("./32/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] lstat("./32/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] unlink("./32/binderfs") = 0 [ 103.083753][ T5662] REISERFS (device loop0): checking transaction log (loop0) [pid 5077] umount2("./32/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5652] <... mount resumed>) = 0 [pid 5652] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5078] <... umount2 resumed>) = 0 [pid 5652] chdir("./file0") = 0 [pid 5652] ioctl(4, LOOP_CLR_FD) = 0 [pid 5652] close(4) = 0 [pid 5652] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5648] <... futex resumed>) = 0 [pid 5652] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5648] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5652] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5648] <... futex resumed>) = 0 [pid 5652] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5648] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5652] <... open resumed>) = 4 [pid 5652] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5648] <... futex resumed>) = 0 [pid 5652] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5648] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5652] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5648] <... futex resumed>) = 0 [pid 5652] ioctl(4, FS_IOC_GETVERSION [pid 5648] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5652] <... ioctl resumed>, 0x20000080) = 0 [pid 5652] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [ 103.127665][ T5653] REISERFS (device loop5): Using r5 hash to sort names [pid 5648] <... futex resumed>) = 0 [pid 5652] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5648] exit_group(0 [pid 5652] <... futex resumed>) = ? [pid 5648] <... exit_group resumed>) = ? [pid 5652] +++ exited with 0 +++ [pid 5648] +++ exited with 0 +++ [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5648, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=24 /* 0.24 s */} --- [pid 5076] umount2("./31", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5076] openat(AT_FDCWD, "./31", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5076] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5078] umount2("./31/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] umount2("./31/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5078] lstat("./31/file0", [pid 5076] lstat("./31/binderfs", [pid 5078] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5078] umount2("./31/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] unlink("./31/binderfs" [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... unlink resumed>) = 0 [pid 5078] openat(AT_FDCWD, "./31/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] umount2("./31/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5078] <... openat resumed>) = 4 [pid 5078] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5078] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5078] close(4) = 0 [pid 5078] rmdir("./31/file0") = 0 [pid 5075] <... umount2 resumed>) = 0 [pid 5078] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5078] close(3) = 0 [pid 5078] rmdir("./31") = 0 [pid 5078] mkdir("./32", 0777) = 0 [pid 5078] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5078] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5078] close(3) = 0 [pid 5078] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5664 [pid 5653] <... mount resumed>) = 0 [ 103.179454][ T5653] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 5653] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY./strace-static-x86_64: Process 5664 attached ) = 3 [pid 5664] set_robust_list(0x5555571745e0, 24 [pid 5653] chdir("./file0" [pid 5664] <... set_robust_list resumed>) = 0 [pid 5653] <... chdir resumed>) = 0 [pid 5664] chdir("./32" [pid 5653] ioctl(4, LOOP_CLR_FD [pid 5664] <... chdir resumed>) = 0 [pid 5653] <... ioctl resumed>) = 0 [pid 5664] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5653] close(4 [pid 5664] <... prctl resumed>) = 0 [pid 5653] <... close resumed>) = 0 [pid 5664] setpgid(0, 0 [pid 5653] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5664] <... setpgid resumed>) = 0 [pid 5653] <... futex resumed>) = 1 [pid 5650] <... futex resumed>) = 0 [pid 5664] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5653] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5650] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5664] <... openat resumed>) = 3 [pid 5653] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5650] <... futex resumed>) = 0 [pid 5664] write(3, "1000", 4 [pid 5653] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5650] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5075] umount2("./30/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5664] <... write resumed>) = 4 [pid 5653] <... open resumed>) = 4 [pid 5664] close(3 [pid 5653] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5664] <... close resumed>) = 0 [pid 5653] <... futex resumed>) = 1 [pid 5650] <... futex resumed>) = 0 [pid 5664] symlink("/dev/binderfs", "./binderfs" [pid 5653] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5650] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5664] <... symlink resumed>) = 0 [pid 5653] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5650] <... futex resumed>) = 0 [pid 5664] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5653] ioctl(4, FS_IOC_GETVERSION [pid 5650] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5664] <... futex resumed>) = 0 [pid 5653] <... ioctl resumed>, 0x20000080) = 0 [pid 5664] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5653] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5664] <... mmap resumed>) = 0x7fdb72913000 [pid 5653] <... futex resumed>) = 1 [pid 5650] <... futex resumed>) = 0 [pid 5664] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5653] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5650] exit_group(0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5664] <... mprotect resumed>) = 0 [pid 5653] <... futex resumed>) = ? [pid 5650] <... exit_group resumed>) = ? [pid 5664] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5653] +++ exited with 0 +++ [pid 5650] +++ exited with 0 +++ [pid 5075] lstat("./30/file0", [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5650, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=20 /* 0.20 s */} --- [pid 5664] <... clone resumed>, parent_tid=[5665], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5665 [pid 5075] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5664] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5075] umount2("./30/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5664] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] openat(AT_FDCWD, "./30/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5079] umount2("./30", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] fstat(4, [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./30", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 ./strace-static-x86_64: Process 5665 attached [pid 5079] <... openat resumed>) = 3 [pid 5075] getdents64(4, [pid 5665] set_robust_list(0x7fdb729339e0, 24 [pid 5079] fstat(3, [pid 5075] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5665] <... set_robust_list resumed>) = 0 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] getdents64(4, [pid 5665] memfd_create("syzkaller", 0 [pid 5079] getdents64(3, [pid 5075] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5665] <... memfd_create resumed>) = 3 [pid 5079] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5075] close(4 [pid 5665] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5079] umount2("./30/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5665] <... mmap resumed>) = 0x7fdb6a513000 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... close resumed>) = 0 [pid 5079] lstat("./30/binderfs", [pid 5075] rmdir("./30/file0" [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] unlink("./30/binderfs") = 0 [pid 5075] <... rmdir resumed>) = 0 [pid 5079] umount2("./30/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5075] close(3) = 0 [pid 5075] rmdir("./30") = 0 [pid 5075] mkdir("./31", 0777) = 0 [pid 5075] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5075] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5075] close(3 [pid 5077] <... umount2 resumed>) = 0 [pid 5075] <... close resumed>) = 0 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] umount2("./32/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... clone resumed>, child_tidptr=0x5555571745d0) = 5666 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] lstat("./32/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] umount2("./32/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5666 attached ) = -1 EINVAL (Invalid argument) [pid 5666] set_robust_list(0x5555571745e0, 24 [pid 5077] openat(AT_FDCWD, "./32/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5666] <... set_robust_list resumed>) = 0 [pid 5077] <... openat resumed>) = 4 [pid 5077] fstat(4, [pid 5666] chdir("./31") = 0 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5666] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5077] getdents64(4, [pid 5666] setpgid(0, 0 [pid 5077] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5666] <... setpgid resumed>) = 0 [pid 5077] getdents64(4, [pid 5666] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5077] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5666] <... openat resumed>) = 3 [pid 5077] close(4 [pid 5666] write(3, "1000", 4 [pid 5662] <... mount resumed>) = 0 [pid 5077] <... close resumed>) = 0 [pid 5076] <... umount2 resumed>) = 0 [pid 5666] <... write resumed>) = 4 [pid 5662] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5077] rmdir("./32/file0" [pid 5076] umount2("./31/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5666] close(3 [pid 5662] <... openat resumed>) = 3 [pid 5077] <... rmdir resumed>) = 0 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5666] <... close resumed>) = 0 [pid 5076] lstat("./31/file0", [pid 5666] symlink("/dev/binderfs", "./binderfs" [pid 5662] chdir("./file0" [pid 5077] getdents64(3, [pid 5076] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5666] <... symlink resumed>) = 0 [pid 5662] <... chdir resumed>) = 0 [pid 5077] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5076] umount2("./31/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5666] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5662] ioctl(4, LOOP_CLR_FD [pid 5077] close(3 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5666] <... futex resumed>) = 0 [pid 5662] <... ioctl resumed>) = 0 [pid 5077] <... close resumed>) = 0 [pid 5076] openat(AT_FDCWD, "./31/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5666] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5662] close(4 [pid 5077] rmdir("./32" [pid 5076] <... openat resumed>) = 4 [pid 5666] <... mmap resumed>) = 0x7fdb72913000 [pid 5662] <... close resumed>) = 0 [pid 5666] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5662] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] <... rmdir resumed>) = 0 [pid 5076] fstat(4, [pid 5666] <... mprotect resumed>) = 0 [pid 5662] <... futex resumed>) = 1 [pid 5658] <... futex resumed>) = 0 [pid 5077] mkdir("./33", 0777 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5666] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5662] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5658] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5077] <... mkdir resumed>) = 0 [pid 5076] getdents64(4, [pid 5658] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5666] <... clone resumed>, parent_tid=[5667], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5667 [pid 5662] <... open resumed>) = 4 [pid 5077] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5076] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5666] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5662] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5666] <... futex resumed>) = 0 [pid 5662] <... futex resumed>) = 1 [pid 5658] <... futex resumed>) = 0 [pid 5077] <... openat resumed>) = 3 [pid 5076] getdents64(4, [pid 5666] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5662] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5658] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] ioctl(3, LOOP_CLR_FD [pid 5076] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5662] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5658] <... futex resumed>) = 0 [pid 5077] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5076] close(4 [pid 5662] ioctl(4, FS_IOC_GETVERSION [pid 5658] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5077] close(3 [pid 5076] <... close resumed>) = 0 [pid 5665] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5662] <... ioctl resumed>, 0x20000080) = 0 ./strace-static-x86_64: Process 5667 attached [ 103.370579][ T5662] REISERFS (device loop0): Using r5 hash to sort names [ 103.384778][ T5662] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5667] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5667] memfd_create("syzkaller", 0) = 3 [pid 5667] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5662] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] <... close resumed>) = 0 [pid 5076] rmdir("./31/file0" [pid 5667] <... mmap resumed>) = 0x7fdb6a513000 [pid 5662] <... futex resumed>) = 1 [pid 5658] <... futex resumed>) = 0 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5662] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5658] exit_group(0 [pid 5076] <... rmdir resumed>) = 0 [pid 5658] <... exit_group resumed>) = ? [pid 5662] <... futex resumed>) = ? [pid 5076] getdents64(3, ./strace-static-x86_64: Process 5668 attached [pid 5662] +++ exited with 0 +++ [pid 5658] +++ exited with 0 +++ [pid 5077] <... clone resumed>, child_tidptr=0x5555571745d0) = 5668 [pid 5076] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5658, si_uid=0, si_status=0, si_utime=0, si_stime=22 /* 0.22 s */} --- [pid 5076] close(3 [pid 5074] restart_syscall(<... resuming interrupted clone ...> [pid 5076] <... close resumed>) = 0 [pid 5074] <... restart_syscall resumed>) = 0 [pid 5076] rmdir("./31" [pid 5668] set_robust_list(0x5555571745e0, 24 [pid 5076] <... rmdir resumed>) = 0 [pid 5668] <... set_robust_list resumed>) = 0 [pid 5076] mkdir("./32", 0777 [pid 5074] umount2("./31", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5668] chdir("./33" [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5668] <... chdir resumed>) = 0 [pid 5076] <... mkdir resumed>) = 0 [pid 5074] openat(AT_FDCWD, "./31", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5668] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5076] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5074] <... openat resumed>) = 3 [pid 5668] <... prctl resumed>) = 0 [pid 5076] <... openat resumed>) = 3 [pid 5074] fstat(3, [pid 5668] setpgid(0, 0 [pid 5076] ioctl(3, LOOP_CLR_FD [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5668] <... setpgid resumed>) = 0 [pid 5076] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5074] getdents64(3, [pid 5668] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5074] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5668] <... openat resumed>) = 3 [pid 5074] umount2("./31/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5668] write(3, "1000", 4 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5668] <... write resumed>) = 4 [pid 5074] lstat("./31/binderfs", [pid 5668] close(3 [pid 5074] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5668] <... close resumed>) = 0 [pid 5074] unlink("./31/binderfs" [pid 5668] symlink("/dev/binderfs", "./binderfs" [pid 5074] <... unlink resumed>) = 0 [pid 5668] <... symlink resumed>) = 0 [pid 5074] umount2("./31/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5668] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5076] close(3 [pid 5668] <... futex resumed>) = 0 [pid 5668] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5076] <... close resumed>) = 0 [pid 5668] <... mmap resumed>) = 0x7fdb72913000 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5668] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5668] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5076] <... clone resumed>, child_tidptr=0x5555571745d0) = 5669 [pid 5668] <... clone resumed>, parent_tid=[5670], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5670 [pid 5668] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 5670 attached ) = 0 [pid 5668] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5670] set_robust_list(0x7fdb729339e0, 24) = 0 ./strace-static-x86_64: Process 5669 attached [pid 5670] memfd_create("syzkaller", 0 [pid 5669] set_robust_list(0x5555571745e0, 24 [pid 5670] <... memfd_create resumed>) = 3 [pid 5669] <... set_robust_list resumed>) = 0 [pid 5669] chdir("./32" [pid 5670] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5669] <... chdir resumed>) = 0 [pid 5670] <... mmap resumed>) = 0x7fdb6a513000 [pid 5669] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5669] setpgid(0, 0) = 0 [pid 5669] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5669] write(3, "1000", 4) = 4 [pid 5669] close(3) = 0 [pid 5669] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5669] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5079] <... umount2 resumed>) = 0 [pid 5669] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5079] umount2("./30/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5669] <... mmap resumed>) = 0x7fdb72913000 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] lstat("./30/file0", [pid 5669] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5079] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] umount2("./30/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./30/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5669] <... mprotect resumed>) = 0 [pid 5079] <... openat resumed>) = 4 [pid 5079] fstat(4, [pid 5669] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5079] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5079] close(4 [pid 5669] <... clone resumed>, parent_tid=[5671], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5671 [pid 5079] <... close resumed>) = 0 [pid 5669] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] rmdir("./30/file0" [pid 5669] <... futex resumed>) = 0 [pid 5669] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5671 attached [pid 5671] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5079] <... rmdir resumed>) = 0 [pid 5079] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5079] close(3) = 0 [pid 5079] rmdir("./30") = 0 [pid 5079] mkdir("./31", 0777 [pid 5671] memfd_create("syzkaller", 0 [pid 5079] <... mkdir resumed>) = 0 [pid 5079] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5079] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5079] close(3) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5671] <... memfd_create resumed>) = 3 [pid 5671] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5667] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5671] <... mmap resumed>) = 0x7fdb6a513000 [pid 5079] <... clone resumed>, child_tidptr=0x5555571745d0) = 5672 ./strace-static-x86_64: Process 5672 attached [pid 5672] set_robust_list(0x5555571745e0, 24) = 0 [pid 5672] chdir("./31") = 0 [pid 5672] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5672] setpgid(0, 0) = 0 [pid 5672] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5672] write(3, "1000", 4) = 4 [pid 5672] close(3) = 0 [pid 5672] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5672] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5672] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5672] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5665] <... write resumed>) = 4194304 [pid 5672] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5665] munmap(0x7fdb6a513000, 4194304 [pid 5672] <... clone resumed>, parent_tid=[5673], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5673 [pid 5672] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5665] <... munmap resumed>) = 0 [pid 5672] <... futex resumed>) = 0 [pid 5665] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5672] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5665] <... openat resumed>) = 4 ./strace-static-x86_64: Process 5673 attached [pid 5665] ioctl(4, LOOP_SET_FD, 3 [pid 5673] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5673] memfd_create("syzkaller", 0) = 3 [pid 5673] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [pid 5670] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5665] <... ioctl resumed>) = 0 [pid 5665] close(3) = 0 [pid 5665] mkdir("./file0", 0777 [pid 5074] <... umount2 resumed>) = 0 [pid 5665] <... mkdir resumed>) = 0 [ 103.629982][ T5665] loop4: detected capacity change from 0 to 8192 [pid 5665] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5671] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5667] <... write resumed>) = 4194304 [pid 5074] umount2("./31/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5667] munmap(0x7fdb6a513000, 4194304 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5667] <... munmap resumed>) = 0 [pid 5667] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5074] lstat("./31/file0", [pid 5667] <... openat resumed>) = 4 [pid 5074] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5667] ioctl(4, LOOP_SET_FD, 3 [pid 5074] umount2("./31/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5667] <... ioctl resumed>) = 0 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5667] close(3 [pid 5074] openat(AT_FDCWD, "./31/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5667] <... close resumed>) = 0 [pid 5074] <... openat resumed>) = 4 [pid 5667] mkdir("./file0", 0777 [pid 5074] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5667] <... mkdir resumed>) = 0 [pid 5074] getdents64(4, [pid 5667] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5074] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5074] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5074] close(4) = 0 [ 103.688721][ T5665] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 103.712322][ T5667] loop1: detected capacity change from 0 to 8192 [ 103.713735][ T5665] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [pid 5673] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5074] rmdir("./31/file0" [pid 5670] <... write resumed>) = 4194304 [pid 5074] <... rmdir resumed>) = 0 [pid 5074] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5074] close(3) = 0 [pid 5074] rmdir("./31") = 0 [pid 5074] mkdir("./32", 0777) = 0 [pid 5074] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5074] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5074] close(3) = 0 [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5676 [pid 5670] munmap(0x7fdb6a513000, 4194304) = 0 [pid 5670] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 ./strace-static-x86_64: Process 5676 attached [ 103.747924][ T5665] REISERFS (device loop4): using ordered data mode [ 103.764426][ T5667] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 103.778124][ T5667] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 103.788966][ T5665] reiserfs: using flush barriers [pid 5670] ioctl(4, LOOP_SET_FD, 3 [pid 5676] set_robust_list(0x5555571745e0, 24) = 0 [pid 5676] chdir("./32") = 0 [pid 5676] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5676] setpgid(0, 0) = 0 [pid 5676] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5671] <... write resumed>) = 4194304 [pid 5670] <... ioctl resumed>) = 0 [pid 5676] <... openat resumed>) = 3 [pid 5671] munmap(0x7fdb6a513000, 4194304 [pid 5670] close(3 [pid 5676] write(3, "1000", 4 [pid 5671] <... munmap resumed>) = 0 [pid 5670] <... close resumed>) = 0 [pid 5676] <... write resumed>) = 4 [pid 5671] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5670] mkdir("./file0", 0777 [pid 5676] close(3 [pid 5671] <... openat resumed>) = 4 [pid 5670] <... mkdir resumed>) = 0 [pid 5676] <... close resumed>) = 0 [ 103.789579][ T5670] loop3: detected capacity change from 0 to 8192 [ 103.809939][ T5665] REISERFS (device loop4): using ordered data mode [ 103.809946][ T5667] REISERFS (device loop1): using ordered data mode [ 103.810274][ T5665] REISERFS (device loop4): checking transaction log (loop4) [ 103.816558][ T5667] reiserfs: using flush barriers [ 103.831511][ T5671] loop2: detected capacity change from 0 to 8192 [pid 5671] ioctl(4, LOOP_SET_FD, 3 [pid 5670] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5676] symlink("/dev/binderfs", "./binderfs" [pid 5673] <... write resumed>) = 4194304 [pid 5671] <... ioctl resumed>) = 0 [pid 5676] <... symlink resumed>) = 0 [pid 5673] munmap(0x7fdb6a513000, 4194304 [pid 5671] close(3 [pid 5676] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5673] <... munmap resumed>) = 0 [pid 5671] <... close resumed>) = 0 [pid 5676] <... futex resumed>) = 0 [pid 5673] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5671] mkdir("./file0", 0777 [pid 5676] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5673] <... openat resumed>) = 4 [pid 5671] <... mkdir resumed>) = 0 [pid 5676] <... mmap resumed>) = 0x7fdb72913000 [pid 5673] ioctl(4, LOOP_SET_FD, 3 [pid 5671] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC, "" [ 103.836946][ T5667] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 103.860357][ T5667] REISERFS (device loop1): checking transaction log (loop1) [ 103.870874][ T5670] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 103.881570][ T5673] loop5: detected capacity change from 0 to 8192 [pid 5676] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5673] <... ioctl resumed>) = 0 [pid 5676] <... mprotect resumed>) = 0 [pid 5676] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5673] close(3 [pid 5676] <... clone resumed>, parent_tid=[5679], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5679 [pid 5673] <... close resumed>) = 0 [pid 5676] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5673] mkdir("./file0", 0777 [pid 5676] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5673] <... mkdir resumed>) = 0 [pid 5673] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC, ""./strace-static-x86_64: Process 5679 attached [pid 5679] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5679] memfd_create("syzkaller", 0) = 3 [pid 5679] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [ 103.887059][ T5670] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 103.903502][ T5670] REISERFS (device loop3): using ordered data mode [ 103.910433][ T5670] reiserfs: using flush barriers [ 103.916123][ T5671] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 103.917571][ T5670] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 103.947023][ T5673] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 103.953283][ T5671] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 103.969919][ T5671] REISERFS (device loop2): using ordered data mode [ 103.976527][ T5671] reiserfs: using flush barriers [ 103.985019][ T5670] REISERFS (device loop3): checking transaction log (loop3) [ 103.994153][ T5671] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 103.998674][ T5673] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 104.019824][ T5673] REISERFS (device loop5): using ordered data mode [ 104.026523][ T5673] reiserfs: using flush barriers [ 104.067293][ T5673] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 104.072026][ T5671] REISERFS (device loop2): checking transaction log (loop2) [ 104.094298][ T5665] REISERFS (device loop4): Using r5 hash to sort names [ 104.101537][ T5665] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [pid 5679] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5665] <... mount resumed>) = 0 [pid 5667] <... mount resumed>) = 0 [pid 5665] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5667] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5665] <... openat resumed>) = 3 [pid 5667] <... openat resumed>) = 3 [ 104.124307][ T5667] REISERFS (device loop1): Using r5 hash to sort names [ 104.131569][ T5667] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [pid 5665] chdir("./file0" [pid 5667] chdir("./file0" [pid 5665] <... chdir resumed>) = 0 [pid 5679] <... write resumed>) = 4194304 [pid 5667] <... chdir resumed>) = 0 [pid 5665] ioctl(4, LOOP_CLR_FD) = 0 [pid 5667] ioctl(4, LOOP_CLR_FD) = 0 [pid 5665] close(4 [pid 5679] munmap(0x7fdb6a513000, 4194304 [pid 5667] close(4 [pid 5665] <... close resumed>) = 0 [pid 5679] <... munmap resumed>) = 0 [pid 5667] <... close resumed>) = 0 [pid 5665] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5679] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5667] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5665] <... futex resumed>) = 1 [pid 5664] <... futex resumed>) = 0 [pid 5679] <... openat resumed>) = 4 [pid 5667] <... futex resumed>) = 1 [pid 5666] <... futex resumed>) = 0 [pid 5665] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [ 104.179291][ T5673] REISERFS (device loop5): checking transaction log (loop5) [pid 5664] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5679] ioctl(4, LOOP_SET_FD, 3 [pid 5667] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5666] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5665] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5667] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5666] <... futex resumed>) = 0 [pid 5665] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5664] <... futex resumed>) = 0 [pid 5667] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5666] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5665] <... open resumed>) = 4 [pid 5667] <... open resumed>) = 4 [pid 5665] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5667] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5665] <... futex resumed>) = 0 [pid 5667] <... futex resumed>) = 1 [pid 5666] <... futex resumed>) = 0 [pid 5665] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5667] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5666] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5667] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5666] <... futex resumed>) = 0 [pid 5667] ioctl(4, FS_IOC_GETVERSION [pid 5666] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5667] <... ioctl resumed>, 0x20000080) = 0 [pid 5667] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5666] <... futex resumed>) = 0 [pid 5667] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5666] exit_group(0 [pid 5664] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5667] <... futex resumed>) = ? [pid 5666] <... exit_group resumed>) = ? [pid 5667] +++ exited with 0 +++ [pid 5666] +++ exited with 0 +++ [pid 5679] <... ioctl resumed>) = 0 [pid 5679] close(3 [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5666, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=14 /* 0.14 s */} --- [pid 5075] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5679] <... close resumed>) = 0 [pid 5075] umount2("./31", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5679] mkdir("./file0", 0777 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] openat(AT_FDCWD, "./31", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5679] <... mkdir resumed>) = 0 [pid 5075] <... openat resumed>) = 3 [pid 5075] fstat(3, [pid 5679] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5670] <... mount resumed>) = 0 [pid 5664] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5670] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5664] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5075] getdents64(3, [ 104.235860][ T5670] REISERFS (device loop3): Using r5 hash to sort names [ 104.237912][ T5679] loop0: detected capacity change from 0 to 8192 [ 104.269433][ T5670] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [pid 5670] <... openat resumed>) = 3 [pid 5665] <... futex resumed>) = 0 [pid 5664] <... futex resumed>) = 1 [pid 5075] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5670] chdir("./file0" [pid 5664] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5075] umount2("./31/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5670] <... chdir resumed>) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5670] ioctl(4, LOOP_CLR_FD [pid 5075] lstat("./31/binderfs", [pid 5670] <... ioctl resumed>) = 0 [pid 5665] ioctl(4, FS_IOC_GETVERSION [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5670] close(4 [pid 5075] unlink("./31/binderfs" [pid 5670] <... close resumed>) = 0 [pid 5665] <... ioctl resumed>, 0x20000080) = 0 [pid 5075] <... unlink resumed>) = 0 [pid 5670] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5665] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5670] <... futex resumed>) = 1 [pid 5668] <... futex resumed>) = 0 [pid 5665] <... futex resumed>) = 1 [pid 5664] <... futex resumed>) = 0 [pid 5075] umount2("./31/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5670] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5668] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5665] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5664] exit_group(0 [pid 5670] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5668] <... futex resumed>) = 0 [pid 5665] <... futex resumed>) = ? [pid 5664] <... exit_group resumed>) = ? [pid 5670] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5668] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5665] +++ exited with 0 +++ [ 104.303029][ T5671] REISERFS (device loop2): Using r5 hash to sort names [ 104.311571][ T5679] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 104.325148][ T5671] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 5670] <... open resumed>) = 4 [pid 5664] +++ exited with 0 +++ [pid 5670] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5664, si_uid=0, si_status=0, si_utime=0, si_stime=21 /* 0.21 s */} --- [pid 5670] <... futex resumed>) = 1 [pid 5668] <... futex resumed>) = 0 [pid 5670] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5668] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5670] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5668] <... futex resumed>) = 0 [pid 5670] ioctl(4, FS_IOC_GETVERSION [pid 5668] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5670] <... ioctl resumed>, 0x20000080) = 0 [pid 5670] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5671] <... mount resumed>) = 0 [pid 5671] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5671] chdir("./file0") = 0 [pid 5671] ioctl(4, LOOP_CLR_FD) = 0 [pid 5671] close(4 [pid 5670] <... futex resumed>) = 1 [pid 5668] <... futex resumed>) = 0 [pid 5670] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5668] exit_group(0 [pid 5671] <... close resumed>) = 0 [pid 5670] <... futex resumed>) = ? [pid 5668] <... exit_group resumed>) = ? [ 104.349401][ T5679] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 104.361661][ T5679] REISERFS (device loop0): using ordered data mode [ 104.370008][ T5679] reiserfs: using flush barriers [ 104.379006][ T5673] REISERFS (device loop5): Using r5 hash to sort names [ 104.385441][ T5679] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5078] umount2("./32", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5671] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5670] +++ exited with 0 +++ [pid 5668] +++ exited with 0 +++ [pid 5671] <... futex resumed>) = 1 [pid 5669] <... futex resumed>) = 0 [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5671] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5669] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5671] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5669] <... futex resumed>) = 0 [pid 5078] openat(AT_FDCWD, "./32", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5668, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=19 /* 0.19 s */} --- [pid 5673] <... mount resumed>) = 0 [pid 5671] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5669] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5673] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5078] <... openat resumed>) = 3 [pid 5077] restart_syscall(<... resuming interrupted clone ...> [pid 5673] <... openat resumed>) = 3 [pid 5671] <... open resumed>) = 4 [pid 5078] fstat(3, [pid 5077] <... restart_syscall resumed>) = 0 [pid 5673] chdir("./file0" [pid 5671] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5673] <... chdir resumed>) = 0 [pid 5671] <... futex resumed>) = 1 [pid 5669] <... futex resumed>) = 0 [pid 5078] getdents64(3, [pid 5673] ioctl(4, LOOP_CLR_FD [pid 5669] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5673] <... ioctl resumed>) = 0 [pid 5671] ioctl(4, FS_IOC_GETVERSION [pid 5669] <... futex resumed>) = 0 [pid 5078] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5077] umount2("./33", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5673] close(4 [pid 5671] <... ioctl resumed>, 0x20000080) = 0 [pid 5669] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5078] umount2("./32/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5673] <... close resumed>) = 0 [pid 5671] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5669] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5673] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5671] <... futex resumed>) = 0 [pid 5669] exit_group(0 [pid 5077] openat(AT_FDCWD, "./33", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5673] <... futex resumed>) = 1 [pid 5672] <... futex resumed>) = 0 [pid 5669] <... exit_group resumed>) = ? [pid 5078] lstat("./32/binderfs", [pid 5673] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5672] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5671] +++ exited with 0 +++ [pid 5078] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] <... openat resumed>) = 3 [pid 5673] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5672] <... futex resumed>) = 0 [pid 5669] +++ exited with 0 +++ [pid 5078] unlink("./32/binderfs" [pid 5077] fstat(3, [pid 5673] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5672] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5078] <... unlink resumed>) = 0 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5673] <... open resumed>) = 4 [pid 5078] umount2("./32/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] getdents64(3, [pid 5673] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5669, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=22 /* 0.22 s */} --- [pid 5673] <... futex resumed>) = 1 [pid 5673] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5672] <... futex resumed>) = 0 [pid 5076] restart_syscall(<... resuming interrupted clone ...> [pid 5673] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5672] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5076] <... restart_syscall resumed>) = 0 [pid 5673] ioctl(4, FS_IOC_GETVERSION [pid 5672] <... futex resumed>) = 0 [pid 5077] umount2("./33/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5673] <... ioctl resumed>, 0x20000080) = 0 [pid 5672] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] lstat("./33/binderfs", [pid 5673] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5076] umount2("./32", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5673] <... futex resumed>) = 1 [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5672] <... futex resumed>) = 0 [pid 5673] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5077] unlink("./33/binderfs" [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 104.386763][ T5673] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 104.418027][ T5679] REISERFS (device loop0): checking transaction log (loop0) [pid 5672] exit_group(0 [pid 5673] <... futex resumed>) = ? [pid 5672] <... exit_group resumed>) = ? [pid 5077] <... unlink resumed>) = 0 [pid 5076] openat(AT_FDCWD, "./32", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5673] +++ exited with 0 +++ [pid 5672] +++ exited with 0 +++ [pid 5077] umount2("./33/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... openat resumed>) = 3 [pid 5076] fstat(3, [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5672, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} --- [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] umount2("./31", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] getdents64(3, [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5079] openat(AT_FDCWD, "./31", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] umount2("./32/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... openat resumed>) = 3 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] fstat(3, [pid 5076] lstat("./32/binderfs", [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] getdents64(3, [pid 5076] unlink("./32/binderfs" [pid 5079] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5076] <... unlink resumed>) = 0 [pid 5079] umount2("./31/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] umount2("./32/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] lstat("./31/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] unlink("./31/binderfs") = 0 [ 104.490060][ T5679] REISERFS (device loop0): Using r5 hash to sort names [pid 5079] umount2("./31/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5079] umount2("./31/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] lstat("./31/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] umount2("./31/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./31/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5079] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5079] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5079] close(4) = 0 [pid 5079] rmdir("./31/file0") = 0 [pid 5079] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5079] close(3) = 0 [pid 5079] rmdir("./31") = 0 [pid 5079] mkdir("./32", 0777) = 0 [pid 5079] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5679] <... mount resumed>) = 0 [pid 5679] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5679] chdir("./file0") = 0 [pid 5679] ioctl(4, LOOP_CLR_FD) = 0 [pid 5679] close(4) = 0 [pid 5679] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5679] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5676] <... futex resumed>) = 0 [pid 5676] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5676] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5679] <... futex resumed>) = 0 [pid 5679] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 5679] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5676] <... futex resumed>) = 0 [pid 5679] ioctl(4, FS_IOC_GETVERSION [pid 5676] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5679] <... ioctl resumed>, 0x20000080) = 0 [pid 5676] <... futex resumed>) = 0 [pid 5679] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5676] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5679] <... futex resumed>) = 0 [pid 5676] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5679] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5676] exit_group(0) = ? [pid 5679] <... futex resumed>) = ? [ 104.542140][ T5679] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5079] <... openat resumed>) = 3 [pid 5679] +++ exited with 0 +++ [pid 5676] +++ exited with 0 +++ [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5676, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=19 /* 0.19 s */} --- [pid 5074] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5074] umount2("./32", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] openat(AT_FDCWD, "./32", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5074] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5074] umount2("./32/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] lstat("./32/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5074] unlink("./32/binderfs") = 0 [pid 5074] umount2("./32/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] ioctl(3, LOOP_CLR_FD [pid 5075] <... umount2 resumed>) = 0 [pid 5077] <... umount2 resumed>) = 0 [pid 5077] umount2("./33/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] lstat("./33/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] umount2("./33/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] openat(AT_FDCWD, "./33/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5077] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5077] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5077] close(4) = 0 [pid 5077] rmdir("./33/file0") = 0 [pid 5074] <... umount2 resumed>) = 0 [pid 5074] umount2("./32/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] lstat("./32/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5074] umount2("./32/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] close(3 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... close resumed>) = 0 [pid 5074] openat(AT_FDCWD, "./32/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5077] rmdir("./33") = 0 [pid 5074] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5074] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5074] close(4) = 0 [pid 5077] mkdir("./34", 0777 [pid 5074] rmdir("./32/file0") = 0 [pid 5077] <... mkdir resumed>) = 0 [pid 5074] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5077] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5074] close(3 [pid 5077] <... openat resumed>) = 3 [pid 5074] <... close resumed>) = 0 [pid 5074] rmdir("./32") = 0 [pid 5077] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5077] close(3) = 0 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5074] mkdir("./33", 0777) = 0 [pid 5077] <... clone resumed>, child_tidptr=0x5555571745d0) = 5682 [pid 5074] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5074] ioctl(3, LOOP_CLR_FD) = 0 [pid 5074] close(3) = 0 [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5683 ./strace-static-x86_64: Process 5682 attached [pid 5682] set_robust_list(0x5555571745e0, 24) = 0 [pid 5682] chdir("./34") = 0 [pid 5682] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5682] setpgid(0, 0./strace-static-x86_64: Process 5683 attached ) = 0 [pid 5682] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5683] set_robust_list(0x5555571745e0, 24 [pid 5682] <... openat resumed>) = 3 [pid 5683] <... set_robust_list resumed>) = 0 [pid 5683] chdir("./33" [pid 5682] write(3, "1000", 4) = 4 [pid 5683] <... chdir resumed>) = 0 [pid 5682] close(3) = 0 [pid 5683] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5682] symlink("/dev/binderfs", "./binderfs" [pid 5683] setpgid(0, 0) = 0 [pid 5683] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5683] write(3, "1000", 4) = 4 [pid 5683] close(3) = 0 [pid 5682] <... symlink resumed>) = 0 [pid 5683] symlink("/dev/binderfs", "./binderfs" [pid 5075] umount2("./31/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5683] <... symlink resumed>) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5683] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5682] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] <... umount2 resumed>) = 0 [pid 5683] <... futex resumed>) = 0 [pid 5682] <... futex resumed>) = 0 [pid 5683] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5682] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5075] lstat("./31/file0", [pid 5683] <... mmap resumed>) = 0x7fdb72913000 [pid 5682] <... mmap resumed>) = 0x7fdb72913000 [pid 5683] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5682] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5683] <... mprotect resumed>) = 0 [pid 5682] <... mprotect resumed>) = 0 [pid 5683] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5682] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5078] umount2("./32/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5683] <... clone resumed>, parent_tid=[5685], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5685 [pid 5682] <... clone resumed>, parent_tid=[5684], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5684 [pid 5683] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5682] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5683] <... futex resumed>) = 0 [pid 5682] <... futex resumed>) = 0 [pid 5683] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5682] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5075] umount2("./31/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5075] openat(AT_FDCWD, "./31/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY./strace-static-x86_64: Process 5685 attached ./strace-static-x86_64: Process 5684 attached [pid 5685] set_robust_list(0x7fdb729339e0, 24 [pid 5684] set_robust_list(0x7fdb729339e0, 24 [pid 5685] <... set_robust_list resumed>) = 0 [pid 5684] <... set_robust_list resumed>) = 0 [pid 5075] <... openat resumed>) = 4 [pid 5685] memfd_create("syzkaller", 0 [pid 5684] memfd_create("syzkaller", 0 [pid 5078] lstat("./32/file0", [pid 5075] fstat(4, [pid 5685] <... memfd_create resumed>) = 3 [pid 5684] <... memfd_create resumed>) = 3 [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5685] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5684] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5685] <... mmap resumed>) = 0x7fdb6a513000 [pid 5684] <... mmap resumed>) = 0x7fdb6a513000 [pid 5075] getdents64(4, [pid 5078] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] umount2("./32/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] getdents64(4, [pid 5078] openat(AT_FDCWD, "./32/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5078] <... openat resumed>) = 4 [pid 5075] close(4 [pid 5078] fstat(4, [pid 5075] <... close resumed>) = 0 [pid 5078] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] rmdir("./31/file0" [pid 5078] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5075] <... rmdir resumed>) = 0 [pid 5078] getdents64(4, [pid 5075] getdents64(3, [pid 5078] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5075] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5078] close(4 [pid 5075] close(3 [pid 5078] <... close resumed>) = 0 [pid 5075] <... close resumed>) = 0 [pid 5078] rmdir("./32/file0" [pid 5075] rmdir("./31" [pid 5078] <... rmdir resumed>) = 0 [pid 5075] <... rmdir resumed>) = 0 [pid 5078] getdents64(3, [pid 5075] mkdir("./32", 0777 [pid 5078] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5078] close(3 [pid 5075] <... mkdir resumed>) = 0 [pid 5078] <... close resumed>) = 0 [pid 5075] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5078] rmdir("./32" [pid 5079] <... ioctl resumed>) = 0 [pid 5078] <... rmdir resumed>) = 0 [pid 5075] <... openat resumed>) = 3 [pid 5078] mkdir("./33", 0777 [pid 5075] ioctl(3, LOOP_CLR_FD [pid 5079] close(3 [pid 5078] <... mkdir resumed>) = 0 [pid 5078] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5079] <... close resumed>) = 0 [pid 5076] <... umount2 resumed>) = 0 [pid 5075] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5076] umount2("./32/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5076] lstat("./32/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] umount2("./32/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5076] openat(AT_FDCWD, "./32/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5076] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5076] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5076] close(4) = 0 [pid 5076] rmdir("./32/file0") = 0 [pid 5076] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5076] close(3) = 0 [pid 5076] rmdir("./32") = 0 [pid 5076] mkdir("./33", 0777) = 0 [pid 5076] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5076] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5078] <... openat resumed>) = 3 [pid 5075] close(3 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5078] ioctl(3, LOOP_CLR_FD [pid 5076] close(3 [pid 5075] <... close resumed>) = 0 [pid 5076] <... close resumed>) = 0 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5078] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] <... clone resumed>, child_tidptr=0x5555571745d0) = 5686 ./strace-static-x86_64: Process 5686 attached [pid 5079] <... clone resumed>, child_tidptr=0x5555571745d0) = 5687 [pid 5078] close(3) = 0 [pid 5075] <... clone resumed>, child_tidptr=0x5555571745d0) = 5688 [pid 5078] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5686] set_robust_list(0x5555571745e0, 24) = 0 [pid 5686] chdir("./33" [pid 5078] <... clone resumed>, child_tidptr=0x5555571745d0) = 5689 [pid 5686] <... chdir resumed>) = 0 [pid 5686] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 5688 attached ) = 0 [pid 5685] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304./strace-static-x86_64: Process 5687 attached [pid 5686] setpgid(0, 0./strace-static-x86_64: Process 5689 attached [pid 5688] set_robust_list(0x5555571745e0, 24 [pid 5687] set_robust_list(0x5555571745e0, 24 [pid 5686] <... setpgid resumed>) = 0 [pid 5689] set_robust_list(0x5555571745e0, 24 [pid 5688] <... set_robust_list resumed>) = 0 [pid 5686] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5689] <... set_robust_list resumed>) = 0 [pid 5688] chdir("./32" [pid 5687] <... set_robust_list resumed>) = 0 [pid 5686] <... openat resumed>) = 3 [pid 5684] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5689] chdir("./33" [pid 5686] write(3, "1000", 4 [pid 5689] <... chdir resumed>) = 0 [pid 5686] <... write resumed>) = 4 [pid 5689] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5686] close(3 [pid 5689] <... prctl resumed>) = 0 [pid 5686] <... close resumed>) = 0 [pid 5689] setpgid(0, 0 [pid 5686] symlink("/dev/binderfs", "./binderfs" [pid 5689] <... setpgid resumed>) = 0 [pid 5686] <... symlink resumed>) = 0 [pid 5689] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5686] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5689] <... openat resumed>) = 3 [pid 5688] <... chdir resumed>) = 0 [pid 5686] <... futex resumed>) = 0 [pid 5689] write(3, "1000", 4 [pid 5686] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5689] <... write resumed>) = 4 [pid 5688] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5686] <... mmap resumed>) = 0x7fdb72913000 [pid 5689] close(3 [pid 5688] <... prctl resumed>) = 0 [pid 5686] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5689] <... close resumed>) = 0 [pid 5687] chdir("./32" [pid 5686] <... mprotect resumed>) = 0 [pid 5688] setpgid(0, 0 [pid 5689] symlink("/dev/binderfs", "./binderfs" [pid 5687] <... chdir resumed>) = 0 [pid 5686] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5689] <... symlink resumed>) = 0 [pid 5688] <... setpgid resumed>) = 0 [pid 5687] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5689] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5688] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5686] <... clone resumed>, parent_tid=[5690], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5690 [pid 5687] <... prctl resumed>) = 0 [pid 5689] <... futex resumed>) = 0 [pid 5686] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5689] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5688] <... openat resumed>) = 3 [pid 5687] setpgid(0, 0 [pid 5686] <... futex resumed>) = 0 [pid 5689] <... mmap resumed>) = 0x7fdb72913000 [pid 5688] write(3, "1000", 4 [pid 5687] <... setpgid resumed>) = 0 [pid 5686] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5690 attached [pid 5689] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5688] <... write resumed>) = 4 [pid 5687] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5690] set_robust_list(0x7fdb729339e0, 24 [pid 5689] <... mprotect resumed>) = 0 [pid 5690] <... set_robust_list resumed>) = 0 [pid 5689] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5688] close(3 [pid 5687] <... openat resumed>) = 3 [pid 5690] memfd_create("syzkaller", 0 [pid 5688] <... close resumed>) = 0 [pid 5687] write(3, "1000", 4 [pid 5690] <... memfd_create resumed>) = 3 [pid 5689] <... clone resumed>, parent_tid=[5691], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5691 [pid 5688] symlink("/dev/binderfs", "./binderfs" [pid 5687] <... write resumed>) = 4 [pid 5690] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5689] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5690] <... mmap resumed>) = 0x7fdb6a513000 [pid 5689] <... futex resumed>) = 0 [pid 5688] <... symlink resumed>) = 0 [pid 5687] close(3./strace-static-x86_64: Process 5691 attached [pid 5689] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5691] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5691] memfd_create("syzkaller", 0 [pid 5688] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5691] <... memfd_create resumed>) = 3 [pid 5688] <... futex resumed>) = 0 [pid 5687] <... close resumed>) = 0 [pid 5691] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5688] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5687] symlink("/dev/binderfs", "./binderfs" [pid 5691] <... mmap resumed>) = 0x7fdb6a513000 [pid 5688] <... mmap resumed>) = 0x7fdb72913000 [pid 5687] <... symlink resumed>) = 0 [pid 5688] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5687] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5688] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5687] <... futex resumed>) = 0 [pid 5687] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5688] <... clone resumed>, parent_tid=[5692], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5692 [pid 5687] <... mmap resumed>) = 0x7fdb72913000 [pid 5688] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5687] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5688] <... futex resumed>) = 0 [pid 5687] <... mprotect resumed>) = 0 [pid 5688] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5687] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5693], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5693 [pid 5687] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 ./strace-static-x86_64: Process 5692 attached [pid 5687] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5692] set_robust_list(0x7fdb729339e0, 24./strace-static-x86_64: Process 5693 attached ) = 0 [pid 5684] <... write resumed>) = 4194304 [pid 5693] set_robust_list(0x7fdb729339e0, 24 [pid 5692] memfd_create("syzkaller", 0 [pid 5684] munmap(0x7fdb6a513000, 4194304 [pid 5692] <... memfd_create resumed>) = 3 [pid 5692] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [pid 5693] <... set_robust_list resumed>) = 0 [pid 5684] <... munmap resumed>) = 0 [pid 5693] memfd_create("syzkaller", 0 [pid 5684] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 5684] ioctl(4, LOOP_SET_FD, 3 [pid 5693] <... memfd_create resumed>) = 3 [pid 5693] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [pid 5684] <... ioctl resumed>) = 0 [pid 5684] close(3) = 0 [pid 5684] mkdir("./file0", 0777) = 0 [pid 5690] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5684] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5685] <... write resumed>) = 4194304 [pid 5685] munmap(0x7fdb6a513000, 4194304) = 0 [ 104.966723][ T5684] loop3: detected capacity change from 0 to 8192 [pid 5685] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5691] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5685] <... openat resumed>) = 4 [pid 5685] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5685] close(3) = 0 [pid 5685] mkdir("./file0", 0777 [pid 5692] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5685] <... mkdir resumed>) = 0 [ 105.008597][ T5684] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 105.024947][ T5685] loop0: detected capacity change from 0 to 8192 [ 105.037015][ T5684] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 105.046379][ T5684] REISERFS (device loop3): using ordered data mode [pid 5685] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC, "" [ 105.057379][ T5685] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 105.063595][ T5684] reiserfs: using flush barriers [ 105.078268][ T5684] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5693] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5690] <... write resumed>) = 4194304 [pid 5690] munmap(0x7fdb6a513000, 4194304) = 0 [pid 5690] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5690] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5692] <... write resumed>) = 4194304 [pid 5690] close(3 [pid 5691] <... write resumed>) = 4194304 [pid 5690] <... close resumed>) = 0 [pid 5690] mkdir("./file0", 0777) = 0 [ 105.110835][ T5684] REISERFS (device loop3): checking transaction log (loop3) [ 105.121486][ T5685] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 105.134429][ T5690] loop2: detected capacity change from 0 to 8192 [pid 5690] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5692] munmap(0x7fdb6a513000, 4194304 [pid 5691] munmap(0x7fdb6a513000, 4194304 [pid 5692] <... munmap resumed>) = 0 [pid 5691] <... munmap resumed>) = 0 [pid 5692] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5691] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5692] ioctl(4, LOOP_SET_FD, 3 [pid 5691] <... openat resumed>) = 4 [pid 5691] ioctl(4, LOOP_SET_FD, 3 [pid 5692] <... ioctl resumed>) = 0 [ 105.173622][ T5685] REISERFS (device loop0): using ordered data mode [ 105.182680][ T5690] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 105.193001][ T5692] loop1: detected capacity change from 0 to 8192 [ 105.202748][ T5690] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 105.204190][ T5691] loop4: detected capacity change from 0 to 8192 [pid 5692] close(3 [pid 5693] <... write resumed>) = 4194304 [pid 5692] <... close resumed>) = 0 [pid 5691] <... ioctl resumed>) = 0 [pid 5693] munmap(0x7fdb6a513000, 4194304 [pid 5692] mkdir("./file0", 0777 [pid 5691] close(3 [pid 5693] <... munmap resumed>) = 0 [pid 5692] <... mkdir resumed>) = 0 [pid 5691] <... close resumed>) = 0 [pid 5693] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5692] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5691] mkdir("./file0", 0777 [pid 5693] <... openat resumed>) = 4 [pid 5691] <... mkdir resumed>) = 0 [pid 5693] ioctl(4, LOOP_SET_FD, 3 [pid 5691] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5693] <... ioctl resumed>) = 0 [pid 5693] close(3) = 0 [ 105.212079][ T5690] REISERFS (device loop2): using ordered data mode [ 105.224968][ T5690] reiserfs: using flush barriers [ 105.229511][ T5685] reiserfs: using flush barriers [ 105.235747][ T5690] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 105.245641][ T5693] loop5: detected capacity change from 0 to 8192 [pid 5693] mkdir("./file0", 0777) = 0 [ 105.268123][ T5691] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 105.281199][ T5685] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 105.282119][ T5692] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 105.309693][ T5690] REISERFS (device loop2): checking transaction log (loop2) [ 105.319538][ T5691] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 105.332982][ T5684] REISERFS (device loop3): Using r5 hash to sort names [ 105.337611][ T5692] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 105.344408][ T5685] REISERFS (device loop0): checking transaction log (loop0) [ 105.350077][ T5692] REISERFS (device loop1): using ordered data mode [ 105.359691][ T5684] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 105.363888][ T5692] reiserfs: using flush barriers [ 105.375061][ T5693] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 105.378974][ T5691] REISERFS (device loop4): using ordered data mode [ 105.396921][ T5691] reiserfs: using flush barriers [ 105.396958][ T5692] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5693] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5684] <... mount resumed>) = 0 [ 105.421214][ T5691] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 105.438562][ T5692] REISERFS (device loop1): checking transaction log (loop1) [ 105.448665][ T5693] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 105.452803][ T5691] REISERFS (device loop4): checking transaction log (loop4) [pid 5684] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5684] chdir("./file0") = 0 [pid 5684] ioctl(4, LOOP_CLR_FD) = 0 [pid 5684] close(4) = 0 [pid 5684] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5682] <... futex resumed>) = 0 [pid 5684] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5682] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5684] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5682] <... futex resumed>) = 0 [pid 5684] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5682] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5684] <... open resumed>) = 4 [ 105.473676][ T5693] REISERFS (device loop5): using ordered data mode [ 105.480355][ T5693] reiserfs: using flush barriers [ 105.486976][ T5693] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 105.504107][ T5693] REISERFS (device loop5): checking transaction log (loop5) [pid 5684] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5682] <... futex resumed>) = 0 [pid 5684] ioctl(4, FS_IOC_GETVERSION [pid 5682] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5682] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5684] <... ioctl resumed>, 0x20000080) = 0 [pid 5684] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5682] <... futex resumed>) = 0 [pid 5684] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5682] exit_group(0 [pid 5684] <... futex resumed>) = ? [pid 5682] <... exit_group resumed>) = ? [pid 5684] +++ exited with 0 +++ [pid 5682] +++ exited with 0 +++ [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5682, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=18 /* 0.18 s */} --- [pid 5077] umount2("./34", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] openat(AT_FDCWD, "./34", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5077] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5077] umount2("./34/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] lstat("./34/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] unlink("./34/binderfs") = 0 [pid 5077] umount2("./34/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5693] <... mount resumed>) = 0 [pid 5693] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5693] chdir("./file0") = 0 [pid 5693] ioctl(4, LOOP_CLR_FD) = 0 [ 105.645859][ T5693] REISERFS (device loop5): Using r5 hash to sort names [ 105.653129][ T5693] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 105.671543][ T5690] REISERFS (device loop2): Using r5 hash to sort names [pid 5693] close(4) = 0 [pid 5693] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5687] <... futex resumed>) = 0 [pid 5693] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5687] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5693] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5693] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 5693] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5693] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL) = 0 [pid 5687] <... futex resumed>) = 1 [pid 5693] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5687] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5687] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5693] <... futex resumed>) = 0 [pid 5687] <... futex resumed>) = 1 [pid 5693] ioctl(4, FS_IOC_GETVERSION [ 105.700256][ T5690] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 5687] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5693] <... ioctl resumed>, 0x20000080) = 0 [pid 5690] <... mount resumed>) = 0 [pid 5693] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5690] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5693] <... futex resumed>) = 1 [pid 5690] <... openat resumed>) = 3 [pid 5687] <... futex resumed>) = 0 [pid 5693] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5687] exit_group(0 [pid 5690] chdir("./file0" [pid 5693] <... futex resumed>) = ? [pid 5687] <... exit_group resumed>) = ? [pid 5693] +++ exited with 0 +++ [pid 5690] <... chdir resumed>) = 0 [pid 5687] +++ exited with 0 +++ [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5687, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=21 /* 0.21 s */} --- [pid 5690] ioctl(4, LOOP_CLR_FD) = 0 [pid 5079] umount2("./32", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5690] close(4 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5690] <... close resumed>) = 0 [pid 5079] openat(AT_FDCWD, "./32", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5690] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] <... openat resumed>) = 3 [pid 5690] <... futex resumed>) = 1 [pid 5686] <... futex resumed>) = 0 [pid 5079] fstat(3, [pid 5686] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5686] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5690] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5690] <... open resumed>) = 4 [pid 5079] getdents64(3, [pid 5690] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5686] <... futex resumed>) = 0 [pid 5079] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5690] ioctl(4, FS_IOC_GETVERSION [pid 5686] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] <... umount2 resumed>) = 0 [pid 5686] <... futex resumed>) = 0 [pid 5686] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5690] <... ioctl resumed>, 0x20000080) = 0 [pid 5079] umount2("./32/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [ 105.766224][ T5691] REISERFS (device loop4): Using r5 hash to sort names [ 105.786376][ T5691] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 105.808894][ T5692] REISERFS (device loop1): Using r5 hash to sort names [pid 5077] umount2("./34/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5691] <... mount resumed>) = 0 [pid 5690] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5692] <... mount resumed>) = 0 [pid 5691] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5690] <... futex resumed>) = 1 [pid 5686] <... futex resumed>) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] lstat("./32/binderfs", [pid 5692] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5691] <... openat resumed>) = 3 [pid 5690] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5686] exit_group(0 [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] lstat("./34/file0", [pid 5692] <... openat resumed>) = 3 [pid 5691] chdir("./file0" [pid 5690] <... futex resumed>) = ? [pid 5686] <... exit_group resumed>) = ? [pid 5079] unlink("./32/binderfs" [pid 5077] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5692] chdir("./file0" [pid 5691] <... chdir resumed>) = 0 [pid 5690] +++ exited with 0 +++ [pid 5079] <... unlink resumed>) = 0 [pid 5077] umount2("./34/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5692] <... chdir resumed>) = 0 [pid 5691] ioctl(4, LOOP_CLR_FD [pid 5686] +++ exited with 0 +++ [pid 5079] umount2("./32/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5692] ioctl(4, LOOP_CLR_FD [pid 5691] <... ioctl resumed>) = 0 [pid 5077] openat(AT_FDCWD, "./34/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5692] <... ioctl resumed>) = 0 [pid 5691] close(4 [pid 5077] <... openat resumed>) = 4 [pid 5692] close(4 [pid 5691] <... close resumed>) = 0 [pid 5077] fstat(4, [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5686, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- [pid 5692] <... close resumed>) = 0 [pid 5691] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] restart_syscall(<... resuming interrupted clone ...> [pid 5692] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5691] <... futex resumed>) = 1 [pid 5689] <... futex resumed>) = 0 [pid 5077] getdents64(4, [pid 5076] <... restart_syscall resumed>) = 0 [pid 5692] <... futex resumed>) = 1 [pid 5691] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5689] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5688] <... futex resumed>) = 0 [pid 5077] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5692] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5691] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5688] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] getdents64(4, [pid 5692] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5691] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5688] <... futex resumed>) = 0 [pid 5077] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5692] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5691] <... open resumed>) = 4 [pid 5688] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5077] close(4 [pid 5692] <... open resumed>) = 4 [pid 5691] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5689] <... futex resumed>) = 0 [pid 5077] <... close resumed>) = 0 [pid 5692] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5691] <... futex resumed>) = 0 [pid 5689] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5077] rmdir("./34/file0" [pid 5076] umount2("./33", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5692] <... futex resumed>) = 1 [pid 5691] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5689] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5688] <... futex resumed>) = 0 [pid 5077] <... rmdir resumed>) = 0 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5692] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5688] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] getdents64(3, [pid 5692] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5688] <... futex resumed>) = 0 [pid 5077] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5692] ioctl(4, FS_IOC_GETVERSION [pid 5688] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5077] close(3 [pid 5692] <... ioctl resumed>, 0x20000080) = 0 [pid 5689] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] <... close resumed>) = 0 [ 105.817376][ T5692] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 105.857011][ T5685] REISERFS (device loop0): Using r5 hash to sort names [pid 5076] openat(AT_FDCWD, "./33", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5692] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5691] <... futex resumed>) = 0 [pid 5689] <... futex resumed>) = 1 [pid 5077] rmdir("./34" [pid 5692] <... futex resumed>) = 1 [pid 5691] ioctl(4, FS_IOC_GETVERSION [pid 5688] <... futex resumed>) = 0 [pid 5077] <... rmdir resumed>) = 0 [pid 5692] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5691] <... ioctl resumed>, 0x20000080) = 0 [pid 5688] exit_group(0 [pid 5077] mkdir("./35", 0777 [pid 5692] <... futex resumed>) = ? [pid 5691] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5688] <... exit_group resumed>) = ? [pid 5077] <... mkdir resumed>) = 0 [pid 5692] +++ exited with 0 +++ [pid 5691] <... futex resumed>) = 0 [pid 5688] +++ exited with 0 +++ [pid 5077] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5691] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5689] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5685] <... mount resumed>) = 0 [pid 5077] <... openat resumed>) = 3 [pid 5076] <... openat resumed>) = 3 [pid 5689] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5685] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5077] ioctl(3, LOOP_CLR_FD [pid 5076] fstat(3, [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5688, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=22 /* 0.22 s */} --- [pid 5689] exit_group(0 [pid 5685] <... openat resumed>) = 3 [pid 5077] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] restart_syscall(<... resuming interrupted clone ...> [pid 5691] <... futex resumed>) = ? [pid 5689] <... exit_group resumed>) = ? [pid 5685] chdir("./file0" [pid 5077] close(3 [pid 5076] getdents64(3, [pid 5075] <... restart_syscall resumed>) = 0 [pid 5691] +++ exited with 0 +++ [pid 5077] <... close resumed>) = 0 [pid 5689] +++ exited with 0 +++ [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5685] <... chdir resumed>) = 0 [pid 5685] ioctl(4, LOOP_CLR_FD [pid 5076] umount2("./33/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5685] <... ioctl resumed>) = 0 [pid 5078] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5689, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=16 /* 0.16 s */} --- [pid 5077] <... clone resumed>, child_tidptr=0x5555571745d0) = 5700 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] umount2("./32", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5685] close(4 [pid 5078] restart_syscall(<... resuming interrupted clone ...> [pid 5076] lstat("./33/binderfs", ./strace-static-x86_64: Process 5700 attached [pid 5685] <... close resumed>) = 0 [pid 5078] <... restart_syscall resumed>) = 0 [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5700] set_robust_list(0x5555571745e0, 24 [pid 5685] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5076] unlink("./33/binderfs" [pid 5075] openat(AT_FDCWD, "./32", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5700] <... set_robust_list resumed>) = 0 [pid 5685] <... futex resumed>) = 1 [pid 5683] <... futex resumed>) = 0 [pid 5076] <... unlink resumed>) = 0 [pid 5075] <... openat resumed>) = 3 [pid 5700] chdir("./35" [pid 5685] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5683] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] umount2("./33", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] umount2("./33/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] fstat(3, [pid 5700] <... chdir resumed>) = 0 [pid 5685] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5683] <... futex resumed>) = 0 [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5700] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5685] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5683] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5078] openat(AT_FDCWD, "./33", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5685] <... open resumed>) = 4 [pid 5078] <... openat resumed>) = 3 [pid 5685] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] fstat(3, [pid 5075] getdents64(3, [pid 5078] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5700] <... prctl resumed>) = 0 [pid 5685] <... futex resumed>) = 1 [pid 5683] <... futex resumed>) = 0 [pid 5078] getdents64(3, [pid 5683] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5075] umount2("./32/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5685] ioctl(4, FS_IOC_GETVERSION [pid 5700] setpgid(0, 0 [pid 5683] <... futex resumed>) = 0 [pid 5078] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5700] <... setpgid resumed>) = 0 [pid 5685] <... ioctl resumed>, 0x20000080) = 0 [pid 5683] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5078] umount2("./33/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] lstat("./32/binderfs", [pid 5700] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5685] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5700] <... openat resumed>) = 3 [pid 5685] <... futex resumed>) = 1 [ 105.884367][ T5685] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5683] <... futex resumed>) = 0 [pid 5078] lstat("./33/binderfs", [pid 5075] unlink("./32/binderfs" [pid 5700] write(3, "1000", 4 [pid 5685] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5683] exit_group(0 [pid 5079] <... umount2 resumed>) = 0 [pid 5078] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5700] <... write resumed>) = 4 [pid 5685] <... futex resumed>) = ? [pid 5683] <... exit_group resumed>) = ? [pid 5078] unlink("./33/binderfs" [pid 5075] <... unlink resumed>) = 0 [pid 5700] close(3 [pid 5685] +++ exited with 0 +++ [pid 5078] <... unlink resumed>) = 0 [pid 5700] <... close resumed>) = 0 [pid 5683] +++ exited with 0 +++ [pid 5078] umount2("./33/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] umount2("./32/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5683, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=17 /* 0.17 s */} --- [pid 5074] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5700] symlink("/dev/binderfs", "./binderfs" [pid 5079] umount2("./32/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] umount2("./33", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5700] <... symlink resumed>) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5700] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] lstat("./32/file0", [pid 5074] openat(AT_FDCWD, "./33", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5700] <... futex resumed>) = 0 [pid 5079] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] <... openat resumed>) = 3 [pid 5700] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5079] umount2("./32/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] fstat(3, [pid 5700] <... mmap resumed>) = 0x7fdb72913000 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5700] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5079] openat(AT_FDCWD, "./32/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5074] getdents64(3, [pid 5700] <... mprotect resumed>) = 0 [pid 5079] <... openat resumed>) = 4 [pid 5074] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5700] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5079] fstat(4, [pid 5074] umount2("./33/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5701 attached [pid 5700] <... clone resumed>, parent_tid=[5701], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5701 [pid 5079] getdents64(4, [pid 5074] lstat("./33/binderfs", [pid 5701] set_robust_list(0x7fdb729339e0, 24 [pid 5700] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5074] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5701] <... set_robust_list resumed>) = 0 [pid 5700] <... futex resumed>) = 0 [pid 5079] getdents64(4, [pid 5074] unlink("./33/binderfs" [pid 5701] memfd_create("syzkaller", 0 [pid 5700] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5079] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5074] <... unlink resumed>) = 0 [pid 5701] <... memfd_create resumed>) = 3 [pid 5079] close(4 [pid 5074] umount2("./33/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5701] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5079] <... close resumed>) = 0 [pid 5701] <... mmap resumed>) = 0x7fdb6a513000 [pid 5079] rmdir("./32/file0") = 0 [pid 5079] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5079] close(3) = 0 [pid 5079] rmdir("./32") = 0 [pid 5079] mkdir("./33", 0777) = 0 [pid 5079] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5079] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5079] close(3) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5702 ./strace-static-x86_64: Process 5702 attached [pid 5702] set_robust_list(0x5555571745e0, 24) = 0 [pid 5702] chdir("./33") = 0 [pid 5702] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5702] setpgid(0, 0) = 0 [pid 5702] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5702] write(3, "1000", 4 [pid 5076] <... umount2 resumed>) = 0 [pid 5702] <... write resumed>) = 4 [pid 5076] umount2("./33/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5702] close(3 [pid 5701] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5702] <... close resumed>) = 0 [pid 5076] lstat("./33/file0", [pid 5702] symlink("/dev/binderfs", "./binderfs" [pid 5076] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5702] <... symlink resumed>) = 0 [pid 5076] umount2("./33/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5702] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5702] <... futex resumed>) = 0 [pid 5076] openat(AT_FDCWD, "./33/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5702] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5076] <... openat resumed>) = 4 [pid 5702] <... mmap resumed>) = 0x7fdb72913000 [pid 5076] fstat(4, [pid 5702] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5702] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5076] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5702] <... clone resumed>, parent_tid=[5703], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5703 [pid 5076] getdents64(4, [pid 5702] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5076] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5702] <... futex resumed>) = 0 [pid 5702] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5076] close(4) = 0 ./strace-static-x86_64: Process 5703 attached [pid 5703] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5703] memfd_create("syzkaller", 0) = 3 [pid 5703] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [pid 5076] rmdir("./33/file0") = 0 [pid 5076] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5076] close(3) = 0 [pid 5076] rmdir("./33") = 0 [pid 5076] mkdir("./34", 0777) = 0 [pid 5076] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5076] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5076] close(3) = 0 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5704 ./strace-static-x86_64: Process 5704 attached [pid 5704] set_robust_list(0x5555571745e0, 24) = 0 [pid 5704] chdir("./34") = 0 [pid 5704] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5704] setpgid(0, 0) = 0 [pid 5704] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5704] write(3, "1000", 4) = 4 [pid 5704] close(3) = 0 [pid 5704] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5704] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5075] <... umount2 resumed>) = 0 [pid 5704] <... futex resumed>) = 0 [pid 5704] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5075] umount2("./32/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5704] <... mmap resumed>) = 0x7fdb72913000 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5704] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5075] lstat("./32/file0", [pid 5704] <... mprotect resumed>) = 0 [pid 5075] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5704] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5075] umount2("./32/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5704] <... clone resumed>, parent_tid=[5705], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5705 [pid 5075] openat(AT_FDCWD, "./32/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY./strace-static-x86_64: Process 5705 attached [pid 5704] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5701] <... write resumed>) = 4194304 [pid 5078] <... umount2 resumed>) = 0 [pid 5075] <... openat resumed>) = 4 [pid 5705] set_robust_list(0x7fdb729339e0, 24 [pid 5704] <... futex resumed>) = 0 [pid 5701] munmap(0x7fdb6a513000, 4194304 [pid 5078] umount2("./33/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] fstat(4, [pid 5705] <... set_robust_list resumed>) = 0 [pid 5704] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5701] <... munmap resumed>) = 0 [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5705] memfd_create("syzkaller", 0 [pid 5078] lstat("./33/file0", [pid 5701] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5075] getdents64(4, [pid 5705] <... memfd_create resumed>) = 3 [pid 5078] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5705] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5701] <... openat resumed>) = 4 [pid 5078] umount2("./33/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5705] <... mmap resumed>) = 0x7fdb6a513000 [pid 5701] ioctl(4, LOOP_SET_FD, 3 [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] getdents64(4, [pid 5074] <... umount2 resumed>) = 0 [pid 5703] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5078] openat(AT_FDCWD, "./33/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5074] umount2("./33/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5078] <... openat resumed>) = 4 [pid 5075] close(4 [pid 5078] fstat(4, [pid 5075] <... close resumed>) = 0 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5078] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] rmdir("./32/file0" [pid 5074] lstat("./33/file0", [pid 5705] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5078] getdents64(4, [pid 5075] <... rmdir resumed>) = 0 [pid 5078] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5075] getdents64(3, [pid 5074] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] getdents64(4, [pid 5075] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5074] umount2("./33/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5078] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5075] close(3 [pid 5078] close(4 [pid 5075] <... close resumed>) = 0 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5078] <... close resumed>) = 0 [pid 5075] rmdir("./32" [pid 5074] openat(AT_FDCWD, "./33/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5078] rmdir("./33/file0" [pid 5075] <... rmdir resumed>) = 0 [pid 5701] <... ioctl resumed>) = 0 [pid 5078] <... rmdir resumed>) = 0 [pid 5075] mkdir("./33", 0777 [pid 5074] <... openat resumed>) = 4 [pid 5701] close(3 [pid 5078] getdents64(3, [pid 5075] <... mkdir resumed>) = 0 [pid 5074] fstat(4, [pid 5701] <... close resumed>) = 0 [pid 5078] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5075] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5701] mkdir("./file0", 0777 [pid 5078] close(3 [pid 5075] <... openat resumed>) = 3 [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5701] <... mkdir resumed>) = 0 [pid 5078] <... close resumed>) = 0 [pid 5075] ioctl(3, LOOP_CLR_FD [pid 5074] getdents64(4, [pid 5701] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5078] rmdir("./33" [pid 5075] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5078] <... rmdir resumed>) = 0 [pid 5075] close(3 [pid 5074] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5078] mkdir("./34", 0777 [pid 5075] <... close resumed>) = 0 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5707 [ 106.263867][ T5701] loop3: detected capacity change from 0 to 8192 [pid 5078] <... mkdir resumed>) = 0 [pid 5074] getdents64(4, [pid 5078] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5074] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 5707 attached [pid 5078] <... openat resumed>) = 3 [pid 5074] close(4 [pid 5707] set_robust_list(0x5555571745e0, 24 [pid 5078] ioctl(3, LOOP_CLR_FD [pid 5074] <... close resumed>) = 0 [pid 5707] <... set_robust_list resumed>) = 0 [pid 5078] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5074] rmdir("./33/file0" [pid 5707] chdir("./33" [pid 5078] close(3 [pid 5707] <... chdir resumed>) = 0 [pid 5078] <... close resumed>) = 0 [pid 5074] <... rmdir resumed>) = 0 [pid 5707] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5078] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5074] getdents64(3, [pid 5707] <... prctl resumed>) = 0 [pid 5078] <... clone resumed>, child_tidptr=0x5555571745d0) = 5708 [pid 5074] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5707] setpgid(0, 0 [pid 5074] close(3 [pid 5707] <... setpgid resumed>) = 0 [pid 5707] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5074] <... close resumed>) = 0 [pid 5707] <... openat resumed>) = 3 [pid 5074] rmdir("./33" [pid 5707] write(3, "1000", 4) = 4 [pid 5074] <... rmdir resumed>) = 0 [pid 5707] close(3 [pid 5074] mkdir("./34", 0777 [pid 5707] <... close resumed>) = 0 ./strace-static-x86_64: Process 5708 attached [pid 5707] symlink("/dev/binderfs", "./binderfs" [pid 5074] <... mkdir resumed>) = 0 [pid 5707] <... symlink resumed>) = 0 [pid 5074] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5708] set_robust_list(0x5555571745e0, 24 [pid 5707] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5708] <... set_robust_list resumed>) = 0 [pid 5707] <... futex resumed>) = 0 [pid 5074] <... openat resumed>) = 3 [pid 5708] chdir("./34" [pid 5707] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5074] ioctl(3, LOOP_CLR_FD [pid 5708] <... chdir resumed>) = 0 [pid 5707] <... mmap resumed>) = 0x7fdb72913000 [pid 5074] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5708] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5707] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5074] close(3 [pid 5708] <... prctl resumed>) = 0 [pid 5707] <... mprotect resumed>) = 0 [pid 5708] setpgid(0, 0 [pid 5707] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5074] <... close resumed>) = 0 [ 106.307125][ T5701] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5708] <... setpgid resumed>) = 0 [pid 5707] <... clone resumed>, parent_tid=[5710], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5710 [pid 5074] <... clone resumed>, child_tidptr=0x5555571745d0) = 5709 [pid 5707] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5708] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5707] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5710 attached ./strace-static-x86_64: Process 5709 attached [pid 5708] <... openat resumed>) = 3 [pid 5705] <... write resumed>) = 4194304 [ 106.348700][ T5701] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 106.358606][ T5701] REISERFS (device loop3): using ordered data mode [ 106.366330][ T5701] reiserfs: using flush barriers [ 106.373669][ T5701] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5710] set_robust_list(0x7fdb729339e0, 24 [pid 5709] set_robust_list(0x5555571745e0, 24 [pid 5708] write(3, "1000", 4 [pid 5703] <... write resumed>) = 4194304 [pid 5708] <... write resumed>) = 4 [pid 5708] close(3) = 0 [pid 5708] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5708] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5708] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5705] munmap(0x7fdb6a513000, 4194304 [pid 5708] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5708] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5711], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5711 [pid 5710] <... set_robust_list resumed>) = 0 [pid 5709] <... set_robust_list resumed>) = 0 [pid 5708] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5703] munmap(0x7fdb6a513000, 4194304 [pid 5708] <... futex resumed>) = 0 [pid 5709] chdir("./34" [pid 5708] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5711 attached [pid 5711] set_robust_list(0x7fdb729339e0, 24 [pid 5703] <... munmap resumed>) = 0 [pid 5711] <... set_robust_list resumed>) = 0 [pid 5710] memfd_create("syzkaller", 0 [pid 5705] <... munmap resumed>) = 0 [pid 5709] <... chdir resumed>) = 0 [pid 5709] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5710] <... memfd_create resumed>) = 3 [pid 5710] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5709] <... prctl resumed>) = 0 [pid 5705] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5703] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5711] memfd_create("syzkaller", 0) = 3 [pid 5709] setpgid(0, 0 [pid 5711] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5710] <... mmap resumed>) = 0x7fdb6a513000 [pid 5709] <... setpgid resumed>) = 0 [pid 5705] <... openat resumed>) = 4 [pid 5703] <... openat resumed>) = 4 [pid 5709] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5705] ioctl(4, LOOP_SET_FD, 3 [pid 5703] ioctl(4, LOOP_SET_FD, 3 [pid 5711] <... mmap resumed>) = 0x7fdb6a513000 [pid 5709] <... openat resumed>) = 3 [pid 5705] <... ioctl resumed>) = 0 [pid 5709] write(3, "1000", 4) = 4 [pid 5709] close(3 [pid 5703] <... ioctl resumed>) = 0 [pid 5709] <... close resumed>) = 0 [pid 5709] symlink("/dev/binderfs", "./binderfs" [pid 5705] close(3 [pid 5703] close(3 [pid 5705] <... close resumed>) = 0 [pid 5703] <... close resumed>) = 0 [pid 5709] <... symlink resumed>) = 0 [pid 5710] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5709] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5705] mkdir("./file0", 0777 [pid 5703] mkdir("./file0", 0777 [pid 5709] <... futex resumed>) = 0 [pid 5705] <... mkdir resumed>) = 0 [pid 5703] <... mkdir resumed>) = 0 [pid 5709] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5705] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5703] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5709] <... mmap resumed>) = 0x7fdb72913000 [pid 5709] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [ 106.397475][ T5701] REISERFS (device loop3): checking transaction log (loop3) [ 106.415518][ T5705] loop2: detected capacity change from 0 to 8192 [ 106.423179][ T5703] loop5: detected capacity change from 0 to 8192 [pid 5709] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5714], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5714 [pid 5709] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 5714 attached ) = 0 [ 106.452835][ T5705] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 106.483736][ T5705] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [pid 5714] set_robust_list(0x7fdb729339e0, 24 [pid 5710] <... write resumed>) = 4194304 [pid 5709] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5714] <... set_robust_list resumed>) = 0 [pid 5710] munmap(0x7fdb6a513000, 4194304 [pid 5714] memfd_create("syzkaller", 0 [pid 5710] <... munmap resumed>) = 0 [pid 5714] <... memfd_create resumed>) = 3 [pid 5710] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5714] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5710] <... openat resumed>) = 4 [pid 5714] <... mmap resumed>) = 0x7fdb6a513000 [ 106.484179][ T5703] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 106.493033][ T5705] REISERFS (device loop2): using ordered data mode [ 106.508123][ T5703] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 106.524845][ T5703] REISERFS (device loop5): using ordered data mode [ 106.531908][ T5703] reiserfs: using flush barriers [ 106.537651][ T5710] loop1: detected capacity change from 0 to 8192 [ 106.538578][ T5705] reiserfs: using flush barriers [pid 5710] ioctl(4, LOOP_SET_FD, 3 [pid 5714] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5711] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [ 106.544765][ T5703] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 106.566961][ T5705] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 106.586884][ T5705] REISERFS (device loop2): checking transaction log (loop2) [pid 5710] <... ioctl resumed>) = 0 [pid 5710] close(3) = 0 [pid 5710] mkdir("./file0", 0777) = 0 [pid 5710] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5711] <... write resumed>) = 4194304 [pid 5711] munmap(0x7fdb6a513000, 4194304) = 0 [pid 5711] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [ 106.596912][ T5703] REISERFS (device loop5): checking transaction log (loop5) [ 106.617176][ T5710] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 106.634876][ T5701] REISERFS (device loop3): Using r5 hash to sort names [ 106.642119][ T5701] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [pid 5711] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5711] close(3) = 0 [pid 5711] mkdir("./file0", 0777) = 0 [pid 5711] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5714] <... write resumed>) = 4194304 [ 106.664805][ T5711] loop4: detected capacity change from 0 to 8192 [ 106.688618][ T5711] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 106.690237][ T5710] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [pid 5714] munmap(0x7fdb6a513000, 4194304) = 0 [pid 5714] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5714] ioctl(4, LOOP_SET_FD, 3 [pid 5701] <... mount resumed>) = 0 [ 106.711254][ T5710] REISERFS (device loop1): using ordered data mode [ 106.717963][ T5710] reiserfs: using flush barriers [ 106.720087][ T5714] loop0: detected capacity change from 0 to 8192 [ 106.724732][ T5711] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 106.730007][ T5710] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 106.738487][ T5711] REISERFS (device loop4): using ordered data mode [pid 5701] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5714] <... ioctl resumed>) = 0 [pid 5714] close(3 [pid 5701] chdir("./file0" [pid 5714] <... close resumed>) = 0 [pid 5701] <... chdir resumed>) = 0 [pid 5714] mkdir("./file0", 0777 [pid 5701] ioctl(4, LOOP_CLR_FD [pid 5714] <... mkdir resumed>) = 0 [pid 5701] <... ioctl resumed>) = 0 [pid 5714] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5701] close(4) = 0 [pid 5701] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5700] <... futex resumed>) = 0 [pid 5701] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [ 106.761251][ T5711] reiserfs: using flush barriers [ 106.768029][ T5711] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 106.784876][ T5711] REISERFS (device loop4): checking transaction log (loop4) [ 106.807996][ T5710] REISERFS (device loop1): checking transaction log (loop1) [pid 5700] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5701] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5700] <... futex resumed>) = 0 [pid 5701] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5700] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5701] <... open resumed>) = 4 [pid 5701] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5700] <... futex resumed>) = 0 [pid 5701] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5700] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5701] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5700] <... futex resumed>) = 0 [pid 5701] ioctl(4, FS_IOC_GETVERSION [pid 5700] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5701] <... ioctl resumed>, 0x20000080) = 0 [pid 5701] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5700] <... futex resumed>) = 0 [pid 5701] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5700] exit_group(0 [pid 5701] <... futex resumed>) = ? [pid 5700] <... exit_group resumed>) = ? [pid 5701] +++ exited with 0 +++ [pid 5700] +++ exited with 0 +++ [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5700, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=12 /* 0.12 s */} --- [pid 5077] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5077] umount2("./35", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] openat(AT_FDCWD, "./35", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5077] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5077] umount2("./35/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] lstat("./35/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] unlink("./35/binderfs") = 0 [ 106.845333][ T5714] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 106.906681][ T5714] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 106.916483][ T5714] REISERFS (device loop0): using ordered data mode [ 106.923024][ T5714] reiserfs: using flush barriers [ 106.933010][ T5714] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5077] umount2("./35/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5705] <... mount resumed>) = 0 [pid 5705] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5705] chdir("./file0") = 0 [pid 5705] ioctl(4, LOOP_CLR_FD) = 0 [pid 5705] close(4) = 0 [pid 5705] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5705] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5704] <... futex resumed>) = 0 [pid 5704] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5705] <... futex resumed>) = 0 [pid 5704] <... futex resumed>) = 1 [pid 5705] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5704] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5705] <... open resumed>) = 4 [pid 5705] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5704] <... futex resumed>) = 0 [pid 5705] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5704] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5705] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5705] ioctl(4, FS_IOC_GETVERSION [pid 5704] <... futex resumed>) = 0 [pid 5705] <... ioctl resumed>, 0x20000080) = 0 [pid 5704] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5705] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5704] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5705] <... futex resumed>) = 0 [pid 5704] exit_group(0) = ? [pid 5705] +++ exited with 0 +++ [pid 5704] +++ exited with 0 +++ [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5704, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=18 /* 0.18 s */} --- [ 106.949916][ T5714] REISERFS (device loop0): checking transaction log (loop0) [ 106.956060][ T5705] REISERFS (device loop2): Using r5 hash to sort names [ 106.975259][ T5705] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 106.984702][ T5711] REISERFS (device loop4): Using r5 hash to sort names [pid 5076] umount2("./34", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5076] openat(AT_FDCWD, "./34", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5076] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5076] umount2("./34/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5076] lstat("./34/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] unlink("./34/binderfs") = 0 [pid 5076] umount2("./34/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5703] <... mount resumed>) = 0 [pid 5711] <... mount resumed>) = 0 [pid 5703] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5703] chdir("./file0") = 0 [pid 5703] ioctl(4, LOOP_CLR_FD) = 0 [pid 5711] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5703] close(4) = 0 [pid 5711] <... openat resumed>) = 3 [pid 5703] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5702] <... futex resumed>) = 0 [pid 5702] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5702] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5703] <... futex resumed>) = 1 [pid 5703] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 5711] chdir("./file0") = 0 [pid 5711] ioctl(4, LOOP_CLR_FD) = 0 [pid 5711] close(4) = 0 [pid 5711] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5708] <... futex resumed>) = 0 [pid 5708] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5708] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5711] <... futex resumed>) = 1 [pid 5711] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5703] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5702] <... futex resumed>) = 0 [pid 5702] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5702] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5703] <... futex resumed>) = 1 [pid 5711] <... open resumed>) = 4 [pid 5703] ioctl(4, FS_IOC_GETVERSION, 0x20000080) = 0 [pid 5703] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5711] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5703] <... futex resumed>) = 1 [pid 5702] <... futex resumed>) = 0 [pid 5711] <... futex resumed>) = 1 [pid 5708] <... futex resumed>) = 0 [pid 5703] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5702] exit_group(0 [pid 5711] ioctl(4, FS_IOC_GETVERSION [pid 5708] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5703] <... futex resumed>) = ? [pid 5702] <... exit_group resumed>) = ? [pid 5711] <... ioctl resumed>, 0x20000080) = 0 [pid 5708] <... futex resumed>) = 0 [pid 5703] +++ exited with 0 +++ [pid 5702] +++ exited with 0 +++ [pid 5711] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5708] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5702, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- [pid 5711] <... futex resumed>) = 0 [pid 5708] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5711] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5708] exit_group(0 [pid 5711] <... futex resumed>) = ? [pid 5708] <... exit_group resumed>) = ? [pid 5079] umount2("./33", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5711] +++ exited with 0 +++ [pid 5708] +++ exited with 0 +++ [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./33", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5078] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5708, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} --- [pid 5079] <... openat resumed>) = 3 [pid 5079] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5079] umount2("./33/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] lstat("./33/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] unlink("./33/binderfs") = 0 [pid 5079] umount2("./33/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5078] umount2("./34", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5078] openat(AT_FDCWD, "./34", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5078] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5078] umount2("./34/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5078] lstat("./34/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5078] unlink("./34/binderfs") = 0 [ 107.024471][ T5703] REISERFS (device loop5): Using r5 hash to sort names [ 107.031717][ T5703] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 107.056680][ T5711] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [pid 5078] umount2("./34/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... umount2 resumed>) = 0 [pid 5077] umount2("./35/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] lstat("./35/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] umount2("./35/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] openat(AT_FDCWD, "./35/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5077] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5077] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5077] close(4) = 0 [pid 5077] rmdir("./35/file0") = 0 [pid 5077] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5077] close(3) = 0 [pid 5077] rmdir("./35") = 0 [pid 5077] mkdir("./36", 0777) = 0 [pid 5077] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5077] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [ 107.217327][ T5710] REISERFS (device loop1): Using r5 hash to sort names [ 107.254212][ T5710] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [pid 5077] close(3) = 0 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5718 ./strace-static-x86_64: Process 5718 attached [pid 5718] set_robust_list(0x5555571745e0, 24) = 0 [pid 5718] chdir("./36") = 0 [pid 5718] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5718] setpgid(0, 0) = 0 [pid 5718] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5076] <... umount2 resumed>) = 0 [pid 5718] <... openat resumed>) = 3 [pid 5718] write(3, "1000", 4) = 4 [pid 5718] close(3) = 0 [pid 5718] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5718] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5718] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5718] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5718] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5714] <... mount resumed>) = 0 [pid 5078] <... umount2 resumed>) = 0 [pid 5076] umount2("./34/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5714] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5710] <... mount resumed>) = 0 [pid 5078] umount2("./34/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5718] <... clone resumed>, parent_tid=[5719], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5719 ./strace-static-x86_64: Process 5719 attached [pid 5718] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5714] <... openat resumed>) = 3 [pid 5710] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5079] <... umount2 resumed>) = 0 [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] lstat("./34/file0", [pid 5719] set_robust_list(0x7fdb729339e0, 24 [pid 5718] <... futex resumed>) = 0 [pid 5714] chdir("./file0" [pid 5710] <... openat resumed>) = 3 [pid 5714] <... chdir resumed>) = 0 [pid 5078] lstat("./34/file0", [pid 5076] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5718] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5714] ioctl(4, LOOP_CLR_FD [pid 5710] chdir("./file0" [pid 5078] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] umount2("./34/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5714] <... ioctl resumed>) = 0 [pid 5710] <... chdir resumed>) = 0 [pid 5078] umount2("./34/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5714] close(4 [pid 5710] ioctl(4, LOOP_CLR_FD [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5719] <... set_robust_list resumed>) = 0 [pid 5714] <... close resumed>) = 0 [pid 5710] <... ioctl resumed>) = 0 [pid 5079] umount2("./33/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] openat(AT_FDCWD, "./34/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5719] memfd_create("syzkaller", 0 [pid 5714] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5710] close(4 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5078] openat(AT_FDCWD, "./34/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] <... openat resumed>) = 4 [pid 5719] <... memfd_create resumed>) = 3 [pid 5714] <... futex resumed>) = 1 [pid 5710] <... close resumed>) = 0 [pid 5709] <... futex resumed>) = 0 [pid 5079] lstat("./33/file0", [pid 5078] <... openat resumed>) = 4 [pid 5076] fstat(4, [pid 5719] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5714] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [ 107.267369][ T5714] REISERFS (device loop0): Using r5 hash to sort names [ 107.304841][ T5714] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5710] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5709] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] fstat(4, [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5719] <... mmap resumed>) = 0x7fdb6a513000 [pid 5714] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5710] <... futex resumed>) = 1 [pid 5709] <... futex resumed>) = 0 [pid 5707] <... futex resumed>) = 0 [pid 5079] umount2("./33/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5078] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] getdents64(4, [pid 5714] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5710] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5709] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5707] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5078] getdents64(4, [pid 5076] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5714] <... open resumed>) = 4 [pid 5710] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5707] <... futex resumed>) = 0 [pid 5079] openat(AT_FDCWD, "./33/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5078] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5076] getdents64(4, [pid 5710] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5707] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5079] <... openat resumed>) = 4 [pid 5714] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5710] <... open resumed>) = 4 [pid 5079] fstat(4, [pid 5078] getdents64(4, [pid 5076] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5714] <... futex resumed>) = 1 [pid 5710] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5709] <... futex resumed>) = 0 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5076] close(4 [pid 5714] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5710] <... futex resumed>) = 1 [pid 5709] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5707] <... futex resumed>) = 0 [pid 5079] getdents64(4, [pid 5078] close(4 [pid 5076] <... close resumed>) = 0 [pid 5714] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5710] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5709] <... futex resumed>) = 0 [pid 5707] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5078] <... close resumed>) = 0 [pid 5076] rmdir("./34/file0" [pid 5714] ioctl(4, FS_IOC_GETVERSION [pid 5710] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5709] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5707] <... futex resumed>) = 0 [pid 5079] getdents64(4, [pid 5078] rmdir("./34/file0" [pid 5076] <... rmdir resumed>) = 0 [pid 5714] <... ioctl resumed>, 0x20000080) = 0 [pid 5710] ioctl(4, FS_IOC_GETVERSION [pid 5707] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5079] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5078] <... rmdir resumed>) = 0 [pid 5076] getdents64(3, [pid 5714] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5710] <... ioctl resumed>, 0x20000080) = 0 [pid 5079] close(4 [pid 5078] getdents64(3, [pid 5076] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5714] <... futex resumed>) = 1 [pid 5710] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5709] <... futex resumed>) = 0 [pid 5079] <... close resumed>) = 0 [pid 5078] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5076] close(3 [pid 5714] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5710] <... futex resumed>) = 1 [pid 5709] exit_group(0 [pid 5707] <... futex resumed>) = 0 [pid 5079] rmdir("./33/file0" [pid 5078] close(3 [pid 5076] <... close resumed>) = 0 [pid 5714] <... futex resumed>) = ? [pid 5710] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5709] <... exit_group resumed>) = ? [pid 5707] exit_group(0 [pid 5079] <... rmdir resumed>) = 0 [pid 5078] <... close resumed>) = 0 [pid 5076] rmdir("./34" [pid 5714] +++ exited with 0 +++ [pid 5710] <... futex resumed>) = ? [pid 5707] <... exit_group resumed>) = ? [pid 5079] getdents64(3, [pid 5078] rmdir("./34" [pid 5076] <... rmdir resumed>) = 0 [pid 5710] +++ exited with 0 +++ [pid 5709] +++ exited with 0 +++ [pid 5707] +++ exited with 0 +++ [pid 5079] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5078] <... rmdir resumed>) = 0 [pid 5076] mkdir("./35", 0777 [pid 5079] close(3 [pid 5078] mkdir("./35", 0777 [pid 5076] <... mkdir resumed>) = 0 [pid 5079] <... close resumed>) = 0 [pid 5078] <... mkdir resumed>) = 0 [pid 5076] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5707, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=23 /* 0.23 s */} --- [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5709, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- [pid 5079] rmdir("./33" [pid 5078] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5076] <... openat resumed>) = 3 [pid 5075] umount2("./33", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] restart_syscall(<... resuming interrupted clone ...> [pid 5079] <... rmdir resumed>) = 0 [pid 5078] <... openat resumed>) = 3 [pid 5076] ioctl(3, LOOP_CLR_FD [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] <... restart_syscall resumed>) = 0 [pid 5079] mkdir("./34", 0777 [pid 5078] ioctl(3, LOOP_CLR_FD [pid 5076] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5075] openat(AT_FDCWD, "./33", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] <... mkdir resumed>) = 0 [pid 5078] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5076] close(3 [pid 5075] <... openat resumed>) = 3 [pid 5079] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5078] close(3 [pid 5076] <... close resumed>) = 0 [pid 5074] umount2("./34", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... openat resumed>) = 3 [pid 5078] <... close resumed>) = 0 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] ioctl(3, LOOP_CLR_FD [pid 5078] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5074] openat(AT_FDCWD, "./34", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5076] <... clone resumed>, child_tidptr=0x5555571745d0) = 5720 [pid 5074] <... openat resumed>) = 3 [pid 5079] close(3 [pid 5078] <... clone resumed>, child_tidptr=0x5555571745d0) = 5721 [pid 5074] fstat(3, [pid 5079] <... close resumed>) = 0 [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5074] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5079] <... clone resumed>, child_tidptr=0x5555571745d0) = 5722 [pid 5074] umount2("./34/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] lstat("./34/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5074] unlink("./34/binderfs") = 0 [pid 5074] umount2("./34/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5721 attached [pid 5721] set_robust_list(0x5555571745e0, 24 [pid 5075] fstat(3, [pid 5721] <... set_robust_list resumed>) = 0 [pid 5721] chdir("./35" [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 ./strace-static-x86_64: Process 5720 attached [pid 5721] <... chdir resumed>) = 0 [pid 5721] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5720] set_robust_list(0x5555571745e0, 24 [pid 5075] getdents64(3, [pid 5721] <... prctl resumed>) = 0 [pid 5720] <... set_robust_list resumed>) = 0 [pid 5721] setpgid(0, 0 [pid 5720] chdir("./35" [pid 5075] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5721] <... setpgid resumed>) = 0 [pid 5720] <... chdir resumed>) = 0 [pid 5075] umount2("./33/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5721] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5720] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5721] <... openat resumed>) = 3 [pid 5720] <... prctl resumed>) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5721] write(3, "1000", 4 [pid 5720] setpgid(0, 0 [pid 5075] lstat("./33/binderfs", [pid 5721] <... write resumed>) = 4 [pid 5720] <... setpgid resumed>) = 0 [pid 5721] close(3 [pid 5720] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5721] <... close resumed>) = 0 [pid 5720] <... openat resumed>) = 3 [pid 5075] unlink("./33/binderfs" [pid 5721] symlink("/dev/binderfs", "./binderfs" [pid 5720] write(3, "1000", 4 [pid 5721] <... symlink resumed>) = 0 [pid 5720] <... write resumed>) = 4 [pid 5075] <... unlink resumed>) = 0 [pid 5721] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5720] close(3 [pid 5075] umount2("./33/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5721] <... futex resumed>) = 0 [pid 5720] <... close resumed>) = 0 ./strace-static-x86_64: Process 5722 attached [pid 5721] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5720] symlink("/dev/binderfs", "./binderfs" [pid 5721] <... mmap resumed>) = 0x7fdb72913000 [pid 5720] <... symlink resumed>) = 0 [pid 5721] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5720] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5721] <... mprotect resumed>) = 0 [pid 5720] <... futex resumed>) = 0 [pid 5721] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5720] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5722] set_robust_list(0x5555571745e0, 24 [pid 5720] <... mmap resumed>) = 0x7fdb72913000 [pid 5722] <... set_robust_list resumed>) = 0 [pid 5721] <... clone resumed>, parent_tid=[5723], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5723 [pid 5720] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5721] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5720] <... mprotect resumed>) = 0 [pid 5721] <... futex resumed>) = 0 [pid 5720] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5721] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5720] <... clone resumed>, parent_tid=[5724], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5724 [pid 5720] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5720] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5723 attached [pid 5723] set_robust_list(0x7fdb729339e0, 24 [pid 5722] chdir("./34") = 0 [pid 5723] <... set_robust_list resumed>) = 0 [pid 5722] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5723] memfd_create("syzkaller", 0./strace-static-x86_64: Process 5724 attached ) = 3 [pid 5724] set_robust_list(0x7fdb729339e0, 24 [pid 5723] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5724] <... set_robust_list resumed>) = 0 [pid 5723] <... mmap resumed>) = 0x7fdb6a513000 [pid 5722] <... prctl resumed>) = 0 [pid 5719] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5724] memfd_create("syzkaller", 0) = 3 [pid 5724] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [pid 5722] setpgid(0, 0) = 0 [pid 5722] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5722] write(3, "1000", 4) = 4 [pid 5722] close(3) = 0 [pid 5722] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5722] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5722] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5722] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5722] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5725], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5725 [pid 5722] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5722] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5725 attached [pid 5725] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5725] memfd_create("syzkaller", 0) = 3 [pid 5724] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5725] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [pid 5723] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5725] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5719] <... write resumed>) = 4194304 [pid 5075] <... umount2 resumed>) = 0 [pid 5719] munmap(0x7fdb6a513000, 4194304 [pid 5075] umount2("./33/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5719] <... munmap resumed>) = 0 [pid 5719] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] <... umount2 resumed>) = 0 [pid 5719] <... openat resumed>) = 4 [pid 5719] ioctl(4, LOOP_SET_FD, 3 [pid 5075] lstat("./33/file0", [pid 5074] umount2("./34/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] lstat("./34/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] umount2("./34/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] openat(AT_FDCWD, "./34/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5074] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5074] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5074] close(4) = 0 [pid 5074] rmdir("./34/file0") = 0 [pid 5074] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5074] close(3) = 0 [pid 5074] rmdir("./34" [pid 5719] <... ioctl resumed>) = 0 [pid 5075] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] <... rmdir resumed>) = 0 [pid 5074] mkdir("./35", 0777 [pid 5719] close(3 [pid 5075] umount2("./33/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] <... mkdir resumed>) = 0 [pid 5719] <... close resumed>) = 0 [pid 5074] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5074] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5074] close(3) = 0 [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] <... clone resumed>, child_tidptr=0x5555571745d0) = 5726 [pid 5719] mkdir("./file0", 0777 [pid 5075] openat(AT_FDCWD, "./33/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5719] <... mkdir resumed>) = 0 [pid 5075] <... openat resumed>) = 4 [pid 5719] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5075] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5075] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5075] close(4) = 0 [pid 5075] rmdir("./33/file0") = 0 [pid 5075] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5075] close(3) = 0 [pid 5075] rmdir("./33") = 0 [pid 5075] mkdir("./34", 0777) = 0 [pid 5075] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5075] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5075] close(3./strace-static-x86_64: Process 5726 attached [ 107.635349][ T5719] loop3: detected capacity change from 0 to 8192 ) = 0 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5728 [pid 5726] set_robust_list(0x5555571745e0, 24) = 0 [pid 5723] <... write resumed>) = 4194304 [pid 5723] munmap(0x7fdb6a513000, 4194304 [pid 5726] chdir("./35"./strace-static-x86_64: Process 5728 attached ) = 0 [pid 5724] <... write resumed>) = 4194304 [pid 5723] <... munmap resumed>) = 0 [pid 5726] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5723] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5726] <... prctl resumed>) = 0 [pid 5724] munmap(0x7fdb6a513000, 4194304 [pid 5723] <... openat resumed>) = 4 [pid 5728] set_robust_list(0x5555571745e0, 24 [pid 5726] setpgid(0, 0 [pid 5723] ioctl(4, LOOP_SET_FD, 3 [pid 5728] <... set_robust_list resumed>) = 0 [pid 5726] <... setpgid resumed>) = 0 [pid 5724] <... munmap resumed>) = 0 [pid 5724] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [ 107.694935][ T5719] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 107.720843][ T5723] loop4: detected capacity change from 0 to 8192 [ 107.729895][ T5724] loop2: detected capacity change from 0 to 8192 [pid 5724] ioctl(4, LOOP_SET_FD, 3 [pid 5728] chdir("./34" [pid 5726] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5723] <... ioctl resumed>) = 0 [pid 5723] close(3) = 0 [pid 5728] <... chdir resumed>) = 0 [pid 5726] <... openat resumed>) = 3 [pid 5725] <... write resumed>) = 4194304 [pid 5724] <... ioctl resumed>) = 0 [pid 5724] close(3 [pid 5723] mkdir("./file0", 0777 [pid 5724] <... close resumed>) = 0 [pid 5723] <... mkdir resumed>) = 0 [pid 5724] mkdir("./file0", 0777 [pid 5723] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5728] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5726] write(3, "1000", 4 [pid 5724] <... mkdir resumed>) = 0 [pid 5724] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5725] munmap(0x7fdb6a513000, 4194304) = 0 [pid 5725] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 5725] ioctl(4, LOOP_SET_FD, 3 [pid 5728] <... prctl resumed>) = 0 [pid 5726] <... write resumed>) = 4 [pid 5728] setpgid(0, 0 [pid 5726] close(3 [pid 5728] <... setpgid resumed>) = 0 [pid 5726] <... close resumed>) = 0 [pid 5728] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5726] symlink("/dev/binderfs", "./binderfs" [pid 5725] <... ioctl resumed>) = 0 [pid 5726] <... symlink resumed>) = 0 [pid 5725] close(3 [pid 5728] <... openat resumed>) = 3 [pid 5725] <... close resumed>) = 0 [pid 5726] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5728] write(3, "1000", 4 [pid 5725] mkdir("./file0", 0777 [pid 5728] <... write resumed>) = 4 [pid 5726] <... futex resumed>) = 0 [pid 5726] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5728] close(3 [pid 5725] <... mkdir resumed>) = 0 [pid 5725] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5726] <... mmap resumed>) = 0x7fdb72913000 [pid 5728] <... close resumed>) = 0 [pid 5726] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5728] symlink("/dev/binderfs", "./binderfs" [pid 5726] <... mprotect resumed>) = 0 [pid 5728] <... symlink resumed>) = 0 [pid 5726] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5728] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5726] <... clone resumed>, parent_tid=[5731], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5731 [pid 5728] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [ 107.736520][ T5719] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 107.747825][ T5719] REISERFS (device loop3): using ordered data mode [ 107.756261][ T5719] reiserfs: using flush barriers [ 107.764498][ T5725] loop5: detected capacity change from 0 to 8192 [pid 5726] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5728] <... mmap resumed>) = 0x7fdb72913000 [pid 5726] <... futex resumed>) = 0 ./strace-static-x86_64: Process 5731 attached [pid 5731] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5731] memfd_create("syzkaller", 0) = 3 [pid 5731] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [pid 5728] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5726] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5728] <... mprotect resumed>) = 0 [pid 5728] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5733], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5733 [pid 5728] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 5733 attached [ 107.783505][ T5724] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 107.800318][ T5719] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 107.817369][ T5723] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 107.817618][ T5724] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [pid 5733] set_robust_list(0x7fdb729339e0, 24 [pid 5728] <... futex resumed>) = 0 [pid 5733] <... set_robust_list resumed>) = 0 [pid 5728] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5733] memfd_create("syzkaller", 0) = 3 [pid 5733] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [ 107.834749][ T5725] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 107.840491][ T5724] REISERFS (device loop2): using ordered data mode [ 107.855060][ T5719] REISERFS (device loop3): checking transaction log (loop3) [ 107.859681][ T5724] reiserfs: using flush barriers [ 107.874278][ T5724] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5733] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304) = 4194304 [ 107.904430][ T5723] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 107.914990][ T5725] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [pid 5731] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5733] munmap(0x7fdb6a513000, 4194304) = 0 [pid 5733] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5733] ioctl(4, LOOP_SET_FD, 3) = 0 [ 107.947393][ T5724] REISERFS (device loop2): checking transaction log (loop2) [ 107.955911][ T5723] REISERFS (device loop4): using ordered data mode [ 107.960676][ T5725] REISERFS (device loop5): using ordered data mode [ 107.969790][ T5725] reiserfs: using flush barriers [ 107.975999][ T5733] loop1: detected capacity change from 0 to 8192 [pid 5733] close(3) = 0 [pid 5733] mkdir("./file0", 0777) = 0 [ 107.984760][ T5725] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 107.987193][ T5723] reiserfs: using flush barriers [ 108.001688][ T5725] REISERFS (device loop5): checking transaction log (loop5) [ 108.020330][ T5733] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 108.052577][ T5733] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 108.074408][ T5733] REISERFS (device loop1): using ordered data mode [pid 5733] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5731] <... write resumed>) = 4194304 [pid 5731] munmap(0x7fdb6a513000, 4194304) = 0 [pid 5731] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [ 108.102624][ T5733] reiserfs: using flush barriers [ 108.110355][ T5723] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 108.126078][ T5731] loop0: detected capacity change from 0 to 8192 [pid 5731] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5731] close(3) = 0 [pid 5731] mkdir("./file0", 0777) = 0 [ 108.141626][ T5733] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 108.145779][ T5719] REISERFS (device loop3): Using r5 hash to sort names [ 108.192394][ T5723] REISERFS (device loop4): checking transaction log (loop4) [pid 5731] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5719] <... mount resumed>) = 0 [pid 5719] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5724] <... mount resumed>) = 0 [pid 5724] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5724] chdir("./file0") = 0 [pid 5724] ioctl(4, LOOP_CLR_FD) = 0 [pid 5724] close(4) = 0 [pid 5724] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5724] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5720] <... futex resumed>) = 0 [pid 5720] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [ 108.192453][ T5724] REISERFS (device loop2): Using r5 hash to sort names [ 108.201346][ T5719] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 108.207497][ T5731] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 108.217815][ T5724] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 108.240457][ T5733] REISERFS (device loop1): checking transaction log (loop1) [pid 5720] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5719] chdir("./file0" [pid 5724] <... futex resumed>) = 0 [pid 5719] <... chdir resumed>) = 0 [pid 5719] ioctl(4, LOOP_CLR_FD [pid 5724] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5719] <... ioctl resumed>) = 0 [pid 5719] close(4 [pid 5724] <... open resumed>) = 4 [pid 5719] <... close resumed>) = 0 [pid 5724] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5720] <... futex resumed>) = 0 [pid 5719] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5724] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5720] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5719] <... futex resumed>) = 1 [pid 5718] <... futex resumed>) = 0 [pid 5724] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5720] <... futex resumed>) = 0 [pid 5719] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5718] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5724] ioctl(4, FS_IOC_GETVERSION [pid 5720] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5724] <... ioctl resumed>, 0x20000080) = 0 [pid 5719] <... open resumed>) = 4 [pid 5718] <... futex resumed>) = 0 [pid 5724] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5719] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5718] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5724] <... futex resumed>) = 1 [pid 5720] <... futex resumed>) = 0 [pid 5719] <... futex resumed>) = 0 [pid 5718] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5724] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5720] exit_group(0 [pid 5718] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5724] <... futex resumed>) = ? [pid 5720] <... exit_group resumed>) = ? [pid 5719] ioctl(4, FS_IOC_GETVERSION [pid 5724] +++ exited with 0 +++ [pid 5718] <... futex resumed>) = 0 [pid 5720] +++ exited with 0 +++ [pid 5718] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5720, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=24 /* 0.24 s */} --- [pid 5719] <... ioctl resumed>, 0x20000080) = 0 [pid 5719] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5076] umount2("./35", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5719] <... futex resumed>) = 1 [pid 5718] <... futex resumed>) = 0 [pid 5719] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5718] exit_group(0 [pid 5076] openat(AT_FDCWD, "./35", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5719] <... futex resumed>) = ? [pid 5718] <... exit_group resumed>) = ? [pid 5076] <... openat resumed>) = 3 [pid 5076] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5076] umount2("./35/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5076] lstat("./35/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5719] +++ exited with 0 +++ [pid 5718] +++ exited with 0 +++ [pid 5076] unlink("./35/binderfs" [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5718, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} --- [pid 5077] umount2("./36", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] openat(AT_FDCWD, "./36", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5076] <... unlink resumed>) = 0 [pid 5077] fstat(3, [pid 5076] umount2("./35/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5077] umount2("./36/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] lstat("./36/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] unlink("./36/binderfs") = 0 [ 108.253711][ T5731] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 108.263003][ T5731] REISERFS (device loop0): using ordered data mode [ 108.319498][ T5731] reiserfs: using flush barriers [ 108.329444][ T5731] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 108.361208][ T5731] REISERFS (device loop0): checking transaction log (loop0) [pid 5077] umount2("./36/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5725] <... mount resumed>) = 0 [pid 5725] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [ 108.379238][ T5725] REISERFS (device loop5): Using r5 hash to sort names [ 108.398006][ T5725] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 5725] chdir("./file0") = 0 [pid 5725] ioctl(4, LOOP_CLR_FD) = 0 [pid 5725] close(4) = 0 [pid 5725] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5722] <... futex resumed>) = 0 [pid 5722] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5722] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5725] <... futex resumed>) = 1 [pid 5725] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 5725] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5722] <... futex resumed>) = 0 [pid 5725] ioctl(4, FS_IOC_GETVERSION [pid 5722] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5725] <... ioctl resumed>, 0x20000080) = 0 [pid 5722] <... futex resumed>) = 0 [pid 5725] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5722] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5725] <... futex resumed>) = 0 [pid 5722] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5725] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5722] exit_group(0 [pid 5725] <... futex resumed>) = ? [pid 5722] <... exit_group resumed>) = ? [pid 5725] +++ exited with 0 +++ [pid 5722] +++ exited with 0 +++ [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5722, si_uid=0, si_status=0, si_utime=0, si_stime=22 /* 0.22 s */} --- [pid 5079] umount2("./34", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./34", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5079] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [ 108.442077][ T5733] REISERFS (device loop1): Using r5 hash to sort names [pid 5079] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5079] umount2("./34/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] lstat("./34/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] unlink("./34/binderfs") = 0 [pid 5079] umount2("./34/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5733] <... mount resumed>) = 0 [pid 5733] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5733] chdir("./file0") = 0 [pid 5733] ioctl(4, LOOP_CLR_FD) = 0 [pid 5733] close(4) = 0 [pid 5733] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5728] <... futex resumed>) = 0 [pid 5733] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5728] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5728] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5733] <... open resumed>) = 4 [pid 5733] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5728] <... futex resumed>) = 0 [pid 5733] ioctl(4, FS_IOC_GETVERSION [pid 5728] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5733] <... ioctl resumed>, 0x20000080) = 0 [pid 5728] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5733] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5728] <... futex resumed>) = 0 [pid 5733] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5728] exit_group(0) = ? [pid 5733] <... futex resumed>) = ? [pid 5733] +++ exited with 0 +++ [pid 5728] +++ exited with 0 +++ [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5728, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [ 108.495082][ T5733] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [pid 5075] umount2("./34", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5075] openat(AT_FDCWD, "./34", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5075] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5075] umount2("./34/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5075] lstat("./34/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] unlink("./34/binderfs") = 0 [pid 5075] umount2("./34/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... umount2 resumed>) = 0 [pid 5077] <... umount2 resumed>) = 0 [pid 5077] umount2("./36/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] lstat("./36/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] umount2("./36/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] openat(AT_FDCWD, "./36/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5077] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] getdents64(4, [pid 5076] umount2("./35/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5076] lstat("./35/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5077] close(4) = 0 [pid 5076] umount2("./35/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] rmdir("./36/file0") = 0 [pid 5076] openat(AT_FDCWD, "./35/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] getdents64(3, [pid 5076] <... openat resumed>) = 4 [pid 5075] <... umount2 resumed>) = 0 [pid 5075] umount2("./34/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5075] lstat("./34/file0", [pid 5076] fstat(4, [pid 5077] close(3 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] <... close resumed>) = 0 [pid 5075] umount2("./34/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] rmdir("./36" [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... rmdir resumed>) = 0 [pid 5075] openat(AT_FDCWD, "./34/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] mkdir("./37", 0777 [pid 5075] <... openat resumed>) = 4 [pid 5077] <... mkdir resumed>) = 0 [pid 5075] fstat(4, [pid 5077] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] <... openat resumed>) = 3 [pid 5075] getdents64(4, [pid 5077] ioctl(3, LOOP_CLR_FD [pid 5075] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5077] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5076] getdents64(4, [pid 5075] getdents64(4, [pid 5077] close(3 [pid 5076] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5075] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5077] <... close resumed>) = 0 [pid 5076] getdents64(4, [pid 5075] close(4 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] <... close resumed>) = 0 [pid 5723] <... mount resumed>) = 0 [pid 5076] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5075] rmdir("./34/file0" [pid 5723] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5077] <... clone resumed>, child_tidptr=0x5555571745d0) = 5736 [pid 5076] close(4 [pid 5075] <... rmdir resumed>) = 0 [pid 5075] getdents64(3, [pid 5076] <... close resumed>) = 0 [pid 5075] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5723] <... openat resumed>) = 3 [pid 5076] rmdir("./35/file0" [pid 5075] close(3) = 0 [pid 5075] rmdir("./34" [pid 5076] <... rmdir resumed>) = 0 [pid 5075] <... rmdir resumed>) = 0 [pid 5075] mkdir("./35", 0777 [pid 5723] chdir("./file0" [pid 5076] getdents64(3, [pid 5075] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 5736 attached [pid 5723] <... chdir resumed>) = 0 [pid 5076] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5075] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5736] set_robust_list(0x5555571745e0, 24 [pid 5723] ioctl(4, LOOP_CLR_FD [pid 5076] close(3 [pid 5736] <... set_robust_list resumed>) = 0 [pid 5736] chdir("./37" [pid 5723] <... ioctl resumed>) = 0 [pid 5076] <... close resumed>) = 0 [pid 5075] <... openat resumed>) = 3 [pid 5736] <... chdir resumed>) = 0 [pid 5723] close(4 [pid 5076] rmdir("./35" [pid 5736] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5736] setpgid(0, 0) = 0 [pid 5736] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5723] <... close resumed>) = 0 [pid 5076] <... rmdir resumed>) = 0 [pid 5736] <... openat resumed>) = 3 [pid 5723] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5076] mkdir("./36", 0777 [pid 5075] ioctl(3, LOOP_CLR_FD [pid 5736] write(3, "1000", 4 [pid 5723] <... futex resumed>) = 1 [pid 5721] <... futex resumed>) = 0 [pid 5736] <... write resumed>) = 4 [pid 5736] close(3 [pid 5723] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5721] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5076] <... mkdir resumed>) = 0 [pid 5075] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5736] <... close resumed>) = 0 [ 108.634887][ T5723] REISERFS (device loop4): Using r5 hash to sort names [ 108.643114][ T5723] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 108.666638][ T5731] REISERFS (device loop0): Using r5 hash to sort names [pid 5736] symlink("/dev/binderfs", "./binderfs" [pid 5723] <... open resumed>) = 4 [pid 5721] <... futex resumed>) = 0 [pid 5079] <... umount2 resumed>) = 0 [pid 5076] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5075] close(3 [pid 5736] <... symlink resumed>) = 0 [pid 5723] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5721] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5076] <... openat resumed>) = 3 [pid 5736] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5723] <... futex resumed>) = 0 [pid 5721] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5076] ioctl(3, LOOP_CLR_FD [pid 5075] <... close resumed>) = 0 [pid 5736] <... futex resumed>) = 0 [pid 5723] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5721] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5076] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5736] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5723] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5721] <... futex resumed>) = 0 [pid 5076] close(3 [pid 5736] <... mmap resumed>) = 0x7fdb72913000 [pid 5723] ioctl(4, FS_IOC_GETVERSION [pid 5721] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5736] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5723] <... ioctl resumed>, 0x20000080) = 0 [pid 5076] <... close resumed>) = 0 [pid 5736] <... mprotect resumed>) = 0 [pid 5723] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5736] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5723] <... futex resumed>) = 1 [pid 5721] <... futex resumed>) = 0 [pid 5736] <... clone resumed>, parent_tid=[5738], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5738 [pid 5736] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5721] exit_group(0 [pid 5736] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5721] <... exit_group resumed>) = ? [pid 5075] <... clone resumed>, child_tidptr=0x5555571745d0) = 5737 [pid 5076] <... clone resumed>, child_tidptr=0x5555571745d0) = 5739 ./strace-static-x86_64: Process 5737 attached [pid 5737] set_robust_list(0x5555571745e0, 24) = 0 [pid 5737] chdir("./35") = 0 [pid 5737] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5723] +++ exited with 0 +++ [pid 5721] +++ exited with 0 +++ [pid 5078] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5721, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} --- [pid 5737] <... prctl resumed>) = 0 ./strace-static-x86_64: Process 5738 attached [pid 5737] setpgid(0, 0 [pid 5738] set_robust_list(0x7fdb729339e0, 24 [pid 5737] <... setpgid resumed>) = 0 [pid 5078] umount2("./35", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5738] <... set_robust_list resumed>) = 0 [pid 5737] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5738] memfd_create("syzkaller", 0 [pid 5078] openat(AT_FDCWD, "./35", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5738] <... memfd_create resumed>) = 3 [pid 5737] <... openat resumed>) = 3 [pid 5738] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5737] write(3, "1000", 4 [pid 5738] <... mmap resumed>) = 0x7fdb6a513000 [pid 5737] <... write resumed>) = 4 [pid 5737] close(3) = 0 [pid 5737] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5737] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5737] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5737] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5737] clone(child_stack=0x7fdb729333f0, 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 5739 attached , parent_tid=[5740], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5740 [pid 5731] <... mount resumed>) = 0 [pid 5078] <... openat resumed>) = 3 [pid 5737] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5731] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5739] set_robust_list(0x5555571745e0, 24 [pid 5078] fstat(3, [pid 5737] <... futex resumed>) = 0 [pid 5731] <... openat resumed>) = 3 [pid 5737] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5731] chdir("./file0" [pid 5739] <... set_robust_list resumed>) = 0 [pid 5731] <... chdir resumed>) = 0 [pid 5078] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5731] ioctl(4, LOOP_CLR_FD [pid 5739] chdir("./36" [pid 5731] <... ioctl resumed>) = 0 [pid 5078] getdents64(3, ./strace-static-x86_64: Process 5740 attached [pid 5731] close(4 [pid 5078] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5739] <... chdir resumed>) = 0 [pid 5078] umount2("./35/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5739] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5740] set_robust_list(0x7fdb729339e0, 24 [pid 5731] <... close resumed>) = 0 [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5740] <... set_robust_list resumed>) = 0 [pid 5739] <... prctl resumed>) = 0 [pid 5731] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] lstat("./35/binderfs", [pid 5740] memfd_create("syzkaller", 0 [pid 5731] <... futex resumed>) = 1 [pid 5726] <... futex resumed>) = 0 [pid 5078] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5740] <... memfd_create resumed>) = 3 [pid 5739] setpgid(0, 0 [pid 5731] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5726] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] umount2("./34/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5078] unlink("./35/binderfs" [pid 5740] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5739] <... setpgid resumed>) = 0 [pid 5731] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5726] <... futex resumed>) = 0 [pid 5740] <... mmap resumed>) = 0x7fdb6a513000 [ 108.703232][ T5731] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5731] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5726] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5739] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5078] <... unlink resumed>) = 0 [pid 5739] <... openat resumed>) = 3 [pid 5731] <... open resumed>) = 4 [pid 5079] lstat("./34/file0", [pid 5078] umount2("./35/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5739] write(3, "1000", 4 [pid 5079] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5739] <... write resumed>) = 4 [pid 5079] umount2("./34/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5739] close(3 [pid 5731] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5739] <... close resumed>) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5739] symlink("/dev/binderfs", "./binderfs" [pid 5079] openat(AT_FDCWD, "./34/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5731] <... futex resumed>) = 1 [pid 5726] <... futex resumed>) = 0 [pid 5739] <... symlink resumed>) = 0 [pid 5079] <... openat resumed>) = 4 [pid 5739] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5731] ioctl(4, FS_IOC_GETVERSION [pid 5726] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] fstat(4, [pid 5739] <... futex resumed>) = 0 [pid 5731] <... ioctl resumed>, 0x20000080) = 0 [pid 5726] <... futex resumed>) = 0 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5739] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5731] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5726] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5079] getdents64(4, [pid 5739] <... mmap resumed>) = 0x7fdb72913000 [pid 5731] <... futex resumed>) = 0 [pid 5726] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5739] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5731] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5726] exit_group(0 [pid 5079] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5739] <... mprotect resumed>) = 0 [pid 5731] <... futex resumed>) = ? [pid 5726] <... exit_group resumed>) = ? [pid 5079] getdents64(4, [pid 5739] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5731] +++ exited with 0 +++ [pid 5726] +++ exited with 0 +++ [pid 5079] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5079] close(4 [pid 5739] <... clone resumed>, parent_tid=[5741], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5741 [pid 5079] <... close resumed>) = 0 [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5726, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=20 /* 0.20 s */} --- [pid 5739] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] rmdir("./34/file0" [pid 5739] <... futex resumed>) = 0 [pid 5079] <... rmdir resumed>) = 0 [pid 5739] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5079] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5079] close(3 [pid 5074] umount2("./35", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... close resumed>) = 0 [pid 5079] rmdir("./34" [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5741 attached [pid 5741] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5741] memfd_create("syzkaller", 0 [pid 5079] <... rmdir resumed>) = 0 [pid 5074] openat(AT_FDCWD, "./35", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] mkdir("./35", 0777 [pid 5074] <... openat resumed>) = 3 [pid 5741] <... memfd_create resumed>) = 3 [pid 5741] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5079] <... mkdir resumed>) = 0 [pid 5074] fstat(3, [pid 5079] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] <... openat resumed>) = 3 [pid 5074] getdents64(3, [pid 5079] ioctl(3, LOOP_CLR_FD [pid 5741] <... mmap resumed>) = 0x7fdb6a513000 [pid 5079] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5074] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5079] close(3 [pid 5074] umount2("./35/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... close resumed>) = 0 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5074] lstat("./35/binderfs", [pid 5738] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5074] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] <... clone resumed>, child_tidptr=0x5555571745d0) = 5742 [pid 5074] unlink("./35/binderfs") = 0 [pid 5074] umount2("./35/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5742 attached [pid 5742] set_robust_list(0x5555571745e0, 24) = 0 [pid 5742] chdir("./35") = 0 [pid 5742] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5742] setpgid(0, 0) = 0 [pid 5742] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5742] write(3, "1000", 4) = 4 [pid 5742] close(3) = 0 [pid 5742] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5742] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5742] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5742] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5742] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5743], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5743 [pid 5740] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5742] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5742] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5743 attached [pid 5743] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5743] memfd_create("syzkaller", 0) = 3 [pid 5743] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [pid 5741] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5743] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5738] <... write resumed>) = 4194304 [pid 5078] <... umount2 resumed>) = 0 [pid 5074] <... umount2 resumed>) = 0 [pid 5078] umount2("./35/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] umount2("./35/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5078] lstat("./35/file0", [pid 5074] lstat("./35/file0", [pid 5078] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5738] munmap(0x7fdb6a513000, 4194304 [pid 5740] <... write resumed>) = 4194304 [pid 5078] umount2("./35/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] umount2("./35/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5740] munmap(0x7fdb6a513000, 4194304 [pid 5738] <... munmap resumed>) = 0 [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] openat(AT_FDCWD, "./35/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5078] openat(AT_FDCWD, "./35/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5738] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5740] <... munmap resumed>) = 0 [pid 5074] <... openat resumed>) = 4 [pid 5740] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5078] <... openat resumed>) = 4 [pid 5074] fstat(4, [pid 5738] <... openat resumed>) = 4 [pid 5078] fstat(4, [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5738] ioctl(4, LOOP_SET_FD, 3 [pid 5078] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] getdents64(4, [pid 5074] getdents64(4, [pid 5740] <... openat resumed>) = 4 [pid 5740] ioctl(4, LOOP_SET_FD, 3 [pid 5738] <... ioctl resumed>) = 0 [pid 5078] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5074] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5078] getdents64(4, [pid 5074] getdents64(4, [pid 5738] close(3 [pid 5078] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5074] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5738] <... close resumed>) = 0 [pid 5078] close(4 [pid 5074] close(4 [pid 5738] mkdir("./file0", 0777 [pid 5078] <... close resumed>) = 0 [pid 5074] <... close resumed>) = 0 [pid 5738] <... mkdir resumed>) = 0 [pid 5078] rmdir("./35/file0" [pid 5074] rmdir("./35/file0" [pid 5738] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5078] <... rmdir resumed>) = 0 [pid 5074] <... rmdir resumed>) = 0 [pid 5078] getdents64(3, [pid 5074] getdents64(3, [pid 5078] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5074] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5078] close(3 [pid 5074] close(3) = 0 [pid 5078] <... close resumed>) = 0 [pid 5074] rmdir("./35") = 0 [pid 5078] rmdir("./35" [pid 5074] mkdir("./36", 0777 [pid 5078] <... rmdir resumed>) = 0 [pid 5074] <... mkdir resumed>) = 0 [pid 5078] mkdir("./36", 0777 [pid 5074] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5078] <... mkdir resumed>) = 0 [pid 5074] <... openat resumed>) = 3 [pid 5078] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5074] ioctl(3, LOOP_CLR_FD [pid 5078] <... openat resumed>) = 3 [pid 5074] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5078] ioctl(3, LOOP_CLR_FD [ 109.025116][ T5738] loop3: detected capacity change from 0 to 8192 [ 109.025870][ T5740] loop1: detected capacity change from 0 to 8192 [pid 5074] close(3 [pid 5078] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5074] <... close resumed>) = 0 [pid 5740] <... ioctl resumed>) = 0 [pid 5740] close(3) = 0 [pid 5740] mkdir("./file0", 0777) = 0 [pid 5740] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5741] <... write resumed>) = 4194304 [pid 5741] munmap(0x7fdb6a513000, 4194304) = 0 [pid 5741] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5741] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5741] close(3) = 0 [pid 5741] mkdir("./file0", 0777) = 0 [pid 5741] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5743] <... write resumed>) = 4194304 [pid 5743] munmap(0x7fdb6a513000, 4194304) = 0 [pid 5743] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 5743] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5743] close(3) = 0 [pid 5743] mkdir("./file0", 0777) = 0 [pid 5743] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5078] close(3) = 0 [pid 5078] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5748 [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5748 attached [ 109.074408][ T5741] loop2: detected capacity change from 0 to 8192 [ 109.078239][ T5738] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 109.094646][ T5743] loop5: detected capacity change from 0 to 8192 [ 109.094697][ T5740] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 ./strace-static-x86_64: Process 5749 attached [pid 5749] set_robust_list(0x5555571745e0, 24) = 0 [pid 5748] set_robust_list(0x5555571745e0, 24 [pid 5074] <... clone resumed>, child_tidptr=0x5555571745d0) = 5749 [pid 5749] chdir("./36") = 0 [pid 5749] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5749] setpgid(0, 0) = 0 [pid 5749] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5749] write(3, "1000", 4) = 4 [pid 5749] close(3) = 0 [pid 5749] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5749] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5749] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5748] <... set_robust_list resumed>) = 0 [pid 5749] <... mmap resumed>) = 0x7fdb72913000 [pid 5748] chdir("./36" [pid 5749] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [ 109.116437][ T5743] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 109.121772][ T5738] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 109.136383][ T5743] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 109.141157][ T5741] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 109.148773][ T5740] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [pid 5749] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5750], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5750 [pid 5749] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5749] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5750 attached [pid 5748] <... chdir resumed>) = 0 [pid 5750] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5750] memfd_create("syzkaller", 0) = 3 [pid 5750] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5748] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5750] <... mmap resumed>) = 0x7fdb6a513000 [pid 5748] <... prctl resumed>) = 0 [pid 5748] setpgid(0, 0) = 0 [pid 5748] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [ 109.171562][ T5743] REISERFS (device loop5): using ordered data mode [ 109.179540][ T5743] reiserfs: using flush barriers [ 109.185096][ T5740] REISERFS (device loop1): using ordered data mode [ 109.193705][ T5738] REISERFS (device loop3): using ordered data mode [ 109.200932][ T5743] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 109.210081][ T5740] reiserfs: using flush barriers [pid 5748] write(3, "1000", 4) = 4 [pid 5748] close(3) = 0 [pid 5748] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5748] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5748] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5748] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5748] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5751], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5751 [pid 5748] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 ./strace-static-x86_64: Process 5751 attached [pid 5748] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5751] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5751] memfd_create("syzkaller", 0) = 3 [pid 5751] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [ 109.217579][ T5738] reiserfs: using flush barriers [ 109.229280][ T5743] REISERFS (device loop5): checking transaction log (loop5) [ 109.229969][ T5738] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 109.240993][ T5741] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [pid 5751] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5750] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5743] <... mount resumed>) = 0 [ 109.314768][ T5740] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 109.326006][ T5738] REISERFS (device loop3): checking transaction log (loop3) [ 109.333059][ T5741] REISERFS (device loop2): using ordered data mode [ 109.346124][ T5743] REISERFS (device loop5): Using r5 hash to sort names [ 109.353641][ T5743] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 5743] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5743] chdir("./file0") = 0 [pid 5743] ioctl(4, LOOP_CLR_FD) = 0 [pid 5743] close(4) = 0 [pid 5743] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5742] <... futex resumed>) = 0 [pid 5743] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5742] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5743] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5742] <... futex resumed>) = 0 [pid 5743] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5742] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5743] <... open resumed>) = 4 [ 109.363497][ T5740] REISERFS (device loop1): checking transaction log (loop1) [ 109.399900][ T5741] reiserfs: using flush barriers [pid 5743] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5742] <... futex resumed>) = 0 [pid 5743] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5742] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5743] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5742] <... futex resumed>) = 0 [pid 5743] ioctl(4, FS_IOC_GETVERSION [pid 5742] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5743] <... ioctl resumed>, 0x20000080) = 0 [pid 5743] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5742] <... futex resumed>) = 0 [pid 5743] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5742] exit_group(0) = ? [pid 5743] <... futex resumed>) = ? [pid 5743] +++ exited with 0 +++ [pid 5742] +++ exited with 0 +++ [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5742, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=16 /* 0.16 s */} --- [pid 5079] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5079] umount2("./35", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./35", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5079] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5079] umount2("./35/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] lstat("./35/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] unlink("./35/binderfs") = 0 [pid 5079] umount2("./35/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5751] <... write resumed>) = 4194304 [pid 5751] munmap(0x7fdb6a513000, 4194304) = 0 [pid 5740] <... mount resumed>) = 0 [pid 5740] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [ 109.457588][ T5741] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 109.467580][ T5740] REISERFS (device loop1): Using r5 hash to sort names [ 109.497719][ T5740] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [pid 5751] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5750] <... write resumed>) = 4194304 [pid 5740] <... openat resumed>) = 3 [pid 5751] ioctl(4, LOOP_SET_FD, 3 [pid 5740] chdir("./file0") = 0 [pid 5740] ioctl(4, LOOP_CLR_FD) = 0 [pid 5740] close(4) = 0 [pid 5750] munmap(0x7fdb6a513000, 4194304) = 0 [pid 5740] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5737] <... futex resumed>) = 0 [pid 5750] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5740] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5737] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5750] <... openat resumed>) = 4 [pid 5740] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5737] <... futex resumed>) = 0 [pid 5751] <... ioctl resumed>) = 0 [pid 5750] ioctl(4, LOOP_SET_FD, 3 [pid 5737] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5751] close(3 [pid 5740] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5751] <... close resumed>) = 0 [pid 5751] mkdir("./file0", 0777 [pid 5740] <... open resumed>) = 4 [pid 5751] <... mkdir resumed>) = 0 [pid 5740] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5751] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5740] <... futex resumed>) = 1 [pid 5737] <... futex resumed>) = 0 [pid 5740] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5737] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5740] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5737] <... futex resumed>) = 0 [pid 5740] ioctl(4, FS_IOC_GETVERSION [pid 5737] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5740] <... ioctl resumed>, 0x20000080) = 0 [pid 5740] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5737] <... futex resumed>) = 0 [pid 5740] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [ 109.544592][ T5751] loop4: detected capacity change from 0 to 8192 [ 109.556300][ T5741] REISERFS (device loop2): checking transaction log (loop2) [ 109.582309][ T5750] loop0: detected capacity change from 0 to 8192 [pid 5737] exit_group(0) = ? [pid 5750] <... ioctl resumed>) = 0 [pid 5750] close(3) = 0 [pid 5750] mkdir("./file0", 0777) = 0 [pid 5750] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5740] <... futex resumed>) = ? [pid 5740] +++ exited with 0 +++ [pid 5737] +++ exited with 0 +++ [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5737, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=20 /* 0.20 s */} --- [ 109.610061][ T5751] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 109.637047][ T5751] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 109.640503][ T5738] REISERFS (device loop3): Using r5 hash to sort names [pid 5075] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5075] umount2("./35", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5075] openat(AT_FDCWD, "./35", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5075] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5075] umount2("./35/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5075] lstat("./35/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] unlink("./35/binderfs") = 0 [ 109.646340][ T5750] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 109.669000][ T5750] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 109.671315][ T5738] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 109.679194][ T5750] REISERFS (device loop0): using ordered data mode [ 109.694111][ T5750] reiserfs: using flush barriers [pid 5075] umount2("./35/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5738] <... mount resumed>) = 0 [pid 5079] <... umount2 resumed>) = 0 [pid 5738] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5079] umount2("./35/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5738] <... openat resumed>) = 3 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5738] chdir("./file0" [pid 5079] lstat("./35/file0", [pid 5738] <... chdir resumed>) = 0 [pid 5079] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5738] ioctl(4, LOOP_CLR_FD [pid 5075] <... umount2 resumed>) = 0 [ 109.700289][ T5750] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 109.716570][ T5751] REISERFS (device loop4): using ordered data mode [ 109.723132][ T5751] reiserfs: using flush barriers [ 109.728862][ T5750] REISERFS (device loop0): checking transaction log (loop0) [ 109.739695][ T5751] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5738] <... ioctl resumed>) = 0 [pid 5079] umount2("./35/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] umount2("./35/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5738] close(4 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5738] <... close resumed>) = 0 [pid 5079] openat(AT_FDCWD, "./35/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] lstat("./35/file0", [pid 5738] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] <... openat resumed>) = 4 [pid 5075] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5738] <... futex resumed>) = 1 [pid 5736] <... futex resumed>) = 0 [pid 5079] fstat(4, [pid 5075] umount2("./35/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5738] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5736] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [ 109.787329][ T5751] REISERFS (device loop4): checking transaction log (loop4) [pid 5738] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5736] <... futex resumed>) = 0 [pid 5079] getdents64(4, [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5738] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5736] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5079] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5075] openat(AT_FDCWD, "./35/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5738] <... open resumed>) = 4 [pid 5079] getdents64(4, [pid 5075] <... openat resumed>) = 4 [pid 5738] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5075] fstat(4, [pid 5738] <... futex resumed>) = 1 [pid 5736] <... futex resumed>) = 0 [pid 5079] close(4 [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5738] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5736] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] <... close resumed>) = 0 [pid 5075] getdents64(4, [pid 5738] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5736] <... futex resumed>) = 0 [pid 5079] rmdir("./35/file0" [pid 5075] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5738] ioctl(4, FS_IOC_GETVERSION [pid 5736] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5079] <... rmdir resumed>) = 0 [pid 5075] getdents64(4, [pid 5738] <... ioctl resumed>, 0x20000080) = 0 [ 109.861475][ T5751] REISERFS (device loop4): Using r5 hash to sort names [ 109.885756][ T5751] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [pid 5079] getdents64(3, [pid 5075] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5738] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5075] close(4 [pid 5738] <... futex resumed>) = 1 [pid 5736] <... futex resumed>) = 0 [pid 5079] close(3 [pid 5075] <... close resumed>) = 0 [pid 5738] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5736] exit_group(0 [pid 5079] <... close resumed>) = 0 [pid 5075] rmdir("./35/file0" [pid 5738] <... futex resumed>) = ? [pid 5736] <... exit_group resumed>) = ? [pid 5079] rmdir("./35" [pid 5075] <... rmdir resumed>) = 0 [pid 5738] +++ exited with 0 +++ [pid 5736] +++ exited with 0 +++ [pid 5079] <... rmdir resumed>) = 0 [pid 5075] getdents64(3, [pid 5079] mkdir("./36", 0777 [pid 5075] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5079] <... mkdir resumed>) = 0 [pid 5075] close(3 [pid 5079] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5075] <... close resumed>) = 0 [pid 5079] <... openat resumed>) = 3 [pid 5075] rmdir("./35" [pid 5079] ioctl(3, LOOP_CLR_FD [pid 5075] <... rmdir resumed>) = 0 [pid 5079] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5075] mkdir("./36", 0777 [pid 5079] close(3 [pid 5075] <... mkdir resumed>) = 0 [pid 5079] <... close resumed>) = 0 [pid 5075] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] <... openat resumed>) = 3 [pid 5075] ioctl(3, LOOP_CLR_FD [pid 5079] <... clone resumed>, child_tidptr=0x5555571745d0) = 5754 [pid 5075] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5075] close(3) = 0 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5736, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=21 /* 0.21 s */} --- [pid 5075] <... clone resumed>, child_tidptr=0x5555571745d0) = 5755 [pid 5077] umount2("./37", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5754 attached ) = -1 EINVAL (Invalid argument) [pid 5754] set_robust_list(0x5555571745e0, 24 [pid 5077] openat(AT_FDCWD, "./37", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY./strace-static-x86_64: Process 5755 attached [pid 5754] <... set_robust_list resumed>) = 0 [pid 5750] <... mount resumed>) = 0 [pid 5755] set_robust_list(0x5555571745e0, 24 [pid 5754] chdir("./36" [pid 5750] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5077] <... openat resumed>) = 3 [pid 5755] <... set_robust_list resumed>) = 0 [pid 5754] <... chdir resumed>) = 0 [pid 5751] <... mount resumed>) = 0 [pid 5750] <... openat resumed>) = 3 [pid 5077] fstat(3, [pid 5755] chdir("./36" [pid 5754] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5750] chdir("./file0" [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [ 109.912476][ T5750] REISERFS (device loop0): Using r5 hash to sort names [ 109.920237][ T5750] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5755] <... chdir resumed>) = 0 [pid 5754] <... prctl resumed>) = 0 [pid 5751] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5750] <... chdir resumed>) = 0 [pid 5077] getdents64(3, [pid 5754] setpgid(0, 0 [pid 5751] <... openat resumed>) = 3 [pid 5750] ioctl(4, LOOP_CLR_FD [pid 5077] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5754] <... setpgid resumed>) = 0 [pid 5751] chdir("./file0" [pid 5750] <... ioctl resumed>) = 0 [pid 5077] umount2("./37/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5754] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5751] <... chdir resumed>) = 0 [pid 5750] close(4 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5755] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5754] <... openat resumed>) = 3 [pid 5751] ioctl(4, LOOP_CLR_FD [pid 5750] <... close resumed>) = 0 [pid 5077] lstat("./37/binderfs", [pid 5755] <... prctl resumed>) = 0 [pid 5754] write(3, "1000", 4 [pid 5751] <... ioctl resumed>) = 0 [pid 5750] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5755] setpgid(0, 0 [pid 5754] <... write resumed>) = 4 [pid 5751] close(4 [pid 5750] <... futex resumed>) = 1 [pid 5749] <... futex resumed>) = 0 [pid 5077] unlink("./37/binderfs" [pid 5755] <... setpgid resumed>) = 0 [pid 5754] close(3 [pid 5751] <... close resumed>) = 0 [pid 5750] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5749] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5741] <... mount resumed>) = 0 [pid 5077] <... unlink resumed>) = 0 [pid 5755] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5754] <... close resumed>) = 0 [pid 5751] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5750] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5749] <... futex resumed>) = 0 [pid 5077] umount2("./37/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5755] <... openat resumed>) = 3 [pid 5754] symlink("/dev/binderfs", "./binderfs" [pid 5751] <... futex resumed>) = 1 [pid 5750] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5748] <... futex resumed>) = 0 [pid 5741] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5755] write(3, "1000", 4 [pid 5754] <... symlink resumed>) = 0 [pid 5751] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5750] <... open resumed>) = 4 [pid 5749] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5748] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5741] <... openat resumed>) = 3 [pid 5755] <... write resumed>) = 4 [pid 5754] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5751] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5750] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5749] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5748] <... futex resumed>) = 0 [pid 5741] chdir("./file0" [pid 5755] close(3 [pid 5754] <... futex resumed>) = 0 [pid 5751] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5750] <... futex resumed>) = 0 [pid 5749] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5748] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5741] <... chdir resumed>) = 0 [pid 5755] <... close resumed>) = 0 [pid 5754] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5751] <... open resumed>) = 4 [pid 5750] ioctl(4, FS_IOC_GETVERSION [pid 5749] <... futex resumed>) = 0 [pid 5741] ioctl(4, LOOP_CLR_FD [pid 5755] symlink("/dev/binderfs", "./binderfs" [pid 5754] <... mmap resumed>) = 0x7fdb72913000 [pid 5751] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5750] <... ioctl resumed>, 0x20000080) = 0 [pid 5749] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5741] <... ioctl resumed>) = 0 [pid 5755] <... symlink resumed>) = 0 [pid 5754] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5751] <... futex resumed>) = 1 [pid 5750] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5749] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5748] <... futex resumed>) = 0 [pid 5741] close(4 [pid 5755] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5754] <... mprotect resumed>) = 0 [pid 5751] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5750] <... futex resumed>) = 0 [pid 5749] exit_group(0 [pid 5748] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5741] <... close resumed>) = 0 [pid 5755] <... futex resumed>) = 0 [pid 5754] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5751] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5749] <... exit_group resumed>) = ? [pid 5748] <... futex resumed>) = 0 [pid 5741] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5755] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5751] ioctl(4, FS_IOC_GETVERSION [pid 5750] +++ exited with 0 +++ [pid 5755] <... mmap resumed>) = 0x7fdb72913000 [pid 5754] <... clone resumed>, parent_tid=[5756], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5756 [pid 5751] <... ioctl resumed>, 0x20000080) = 0 [pid 5749] +++ exited with 0 +++ [pid 5748] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5741] <... futex resumed>) = 1 [pid 5739] <... futex resumed>) = 0 [pid 5755] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5754] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5751] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5748] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5741] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5739] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5755] <... mprotect resumed>) = 0 [pid 5754] <... futex resumed>) = 0 [pid 5751] <... futex resumed>) = 0 [pid 5748] exit_group(0 [pid 5739] <... futex resumed>) = 0 [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5749, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=18 /* 0.18 s */} --- [pid 5755] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5754] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5748] <... exit_group resumed>) = ? [pid 5741] <... open resumed>) = 4 [pid 5739] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5074] umount2("./36", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5751] +++ exited with 0 +++ [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5756 attached [pid 5074] openat(AT_FDCWD, "./36", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5756] set_robust_list(0x7fdb729339e0, 24 [pid 5074] <... openat resumed>) = 3 [pid 5756] <... set_robust_list resumed>) = 0 [pid 5748] +++ exited with 0 +++ [pid 5074] fstat(3, [pid 5756] memfd_create("syzkaller", 0 [pid 5755] <... clone resumed>, parent_tid=[5757], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5757 [pid 5741] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5756] <... memfd_create resumed>) = 3 [pid 5755] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5741] <... futex resumed>) = 1 [pid 5739] <... futex resumed>) = 0 [pid 5078] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5748, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=18 /* 0.18 s */} --- [pid 5074] getdents64(3, [pid 5756] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5755] <... futex resumed>) = 0 [pid 5741] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5739] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] restart_syscall(<... resuming interrupted clone ...> [ 109.955203][ T5741] REISERFS (device loop2): Using r5 hash to sort names [ 109.963715][ T5741] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 5074] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 ./strace-static-x86_64: Process 5757 attached [pid 5756] <... mmap resumed>) = 0x7fdb6a513000 [pid 5755] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5741] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5739] <... futex resumed>) = 0 [pid 5078] <... restart_syscall resumed>) = 0 [pid 5074] umount2("./36/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5757] set_robust_list(0x7fdb729339e0, 24 [pid 5741] ioctl(4, FS_IOC_GETVERSION [pid 5739] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5757] <... set_robust_list resumed>) = 0 [pid 5074] lstat("./36/binderfs", [pid 5757] memfd_create("syzkaller", 0 [pid 5741] <... ioctl resumed>, 0x20000080) = 0 [pid 5078] umount2("./36", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5757] <... memfd_create resumed>) = 3 [pid 5741] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] unlink("./36/binderfs" [pid 5757] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5741] <... futex resumed>) = 1 [pid 5739] <... futex resumed>) = 0 [pid 5078] openat(AT_FDCWD, "./36", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5074] <... unlink resumed>) = 0 [pid 5757] <... mmap resumed>) = 0x7fdb6a513000 [pid 5741] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5739] exit_group(0 [pid 5078] <... openat resumed>) = 3 [pid 5074] umount2("./36/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5741] <... futex resumed>) = ? [pid 5739] <... exit_group resumed>) = ? [pid 5078] fstat(3, [pid 5741] +++ exited with 0 +++ [pid 5739] +++ exited with 0 +++ [pid 5078] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5739, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=21 /* 0.21 s */} --- [pid 5078] umount2("./36/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] umount2("./36", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5078] lstat("./36/binderfs", [pid 5076] openat(AT_FDCWD, "./36", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5078] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] <... openat resumed>) = 3 [pid 5078] unlink("./36/binderfs" [pid 5076] fstat(3, [pid 5078] <... unlink resumed>) = 0 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] umount2("./36/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5076] umount2("./36/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5076] lstat("./36/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] unlink("./36/binderfs") = 0 [pid 5076] umount2("./36/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5076] umount2("./36/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5076] lstat("./36/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] umount2("./36/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5076] openat(AT_FDCWD, "./36/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5076] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5756] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5076] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5076] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5076] close(4) = 0 [pid 5076] rmdir("./36/file0") = 0 [pid 5076] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5076] close(3) = 0 [pid 5076] rmdir("./36") = 0 [pid 5076] mkdir("./37", 0777 [pid 5077] <... umount2 resumed>) = 0 [pid 5076] <... mkdir resumed>) = 0 [pid 5076] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5077] umount2("./37/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5757] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] lstat("./37/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] umount2("./37/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5076] <... openat resumed>) = 3 [pid 5077] openat(AT_FDCWD, "./37/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5077] <... openat resumed>) = 4 [pid 5076] close(3 [pid 5077] fstat(4, [pid 5076] <... close resumed>) = 0 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] getdents64(4, [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5077] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5076] <... clone resumed>, child_tidptr=0x5555571745d0) = 5758 [pid 5077] close(4) = 0 [pid 5077] rmdir("./37/file0") = 0 [pid 5077] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5077] close(3) = 0 [pid 5077] rmdir("./37") = 0 [pid 5077] mkdir("./38", 0777) = 0 [pid 5077] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5077] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5077] close(3) = 0 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5759 ./strace-static-x86_64: Process 5758 attached [pid 5758] set_robust_list(0x5555571745e0, 24) = 0 [pid 5758] chdir("./37") = 0 [pid 5758] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 5759 attached [pid 5759] set_robust_list(0x5555571745e0, 24) = 0 [pid 5759] chdir("./38") = 0 [pid 5758] <... prctl resumed>) = 0 [pid 5759] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5758] setpgid(0, 0 [pid 5759] setpgid(0, 0) = 0 [pid 5759] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5758] <... setpgid resumed>) = 0 [pid 5759] write(3, "1000", 4 [pid 5758] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5759] <... write resumed>) = 4 [pid 5759] close(3) = 0 [pid 5759] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5758] <... openat resumed>) = 3 [pid 5759] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5759] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5759] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5759] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5758] write(3, "1000", 4 [pid 5074] <... umount2 resumed>) = 0 [pid 5759] <... clone resumed>, parent_tid=[5760], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5760 [pid 5759] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5759] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5758] <... write resumed>) = 4 [pid 5758] close(3) = 0 [pid 5758] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5758] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5758] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5758] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5758] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5761], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5761 [pid 5758] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5078] <... umount2 resumed>) = 0 [pid 5758] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5760 attached [pid 5074] umount2("./36/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5760] set_robust_list(0x7fdb729339e0, 24 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5078] umount2("./36/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5078] lstat("./36/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] umount2("./36/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5761 attached [pid 5761] set_robust_list(0x7fdb729339e0, 24 [pid 5078] openat(AT_FDCWD, "./36/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5761] <... set_robust_list resumed>) = 0 [pid 5761] memfd_create("syzkaller", 0 [pid 5760] <... set_robust_list resumed>) = 0 [pid 5074] lstat("./36/file0", [pid 5078] fstat(4, [pid 5760] memfd_create("syzkaller", 0 [pid 5078] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5760] <... memfd_create resumed>) = 3 [pid 5760] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5074] umount2("./36/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5761] <... memfd_create resumed>) = 3 [pid 5078] getdents64(4, [pid 5761] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5078] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5761] <... mmap resumed>) = 0x7fdb6a513000 [pid 5760] <... mmap resumed>) = 0x7fdb6a513000 [pid 5078] getdents64(4, [pid 5074] openat(AT_FDCWD, "./36/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5078] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5074] <... openat resumed>) = 4 [pid 5074] fstat(4, [pid 5078] close(4 [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] <... close resumed>) = 0 [pid 5074] getdents64(4, [pid 5078] rmdir("./36/file0" [pid 5074] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5078] <... rmdir resumed>) = 0 [pid 5074] getdents64(4, [pid 5078] getdents64(3, [pid 5074] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5074] close(4 [pid 5078] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5074] <... close resumed>) = 0 [pid 5078] close(3) = 0 [pid 5074] rmdir("./36/file0" [pid 5078] rmdir("./36") = 0 [pid 5074] <... rmdir resumed>) = 0 [pid 5078] mkdir("./37", 0777 [pid 5074] getdents64(3, [pid 5078] <... mkdir resumed>) = 0 [pid 5078] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5074] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5078] <... openat resumed>) = 3 [pid 5074] close(3 [pid 5078] ioctl(3, LOOP_CLR_FD [pid 5756] <... write resumed>) = 4194304 [pid 5078] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5074] <... close resumed>) = 0 [pid 5078] close(3 [pid 5074] rmdir("./36" [pid 5078] <... close resumed>) = 0 [pid 5078] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5074] <... rmdir resumed>) = 0 [pid 5078] <... clone resumed>, child_tidptr=0x5555571745d0) = 5762 [pid 5074] mkdir("./37", 0777) = 0 [pid 5074] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5074] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 5762 attached ) = -1 ENXIO (No such device or address) [pid 5762] set_robust_list(0x5555571745e0, 24 [pid 5757] <... write resumed>) = 4194304 [pid 5074] close(3 [pid 5762] <... set_robust_list resumed>) = 0 [pid 5756] munmap(0x7fdb6a513000, 4194304 [pid 5762] chdir("./37" [pid 5756] <... munmap resumed>) = 0 [pid 5074] <... close resumed>) = 0 [pid 5762] <... chdir resumed>) = 0 [pid 5756] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5762] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5756] <... openat resumed>) = 4 [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5762] <... prctl resumed>) = 0 [pid 5756] ioctl(4, LOOP_SET_FD, 3 [pid 5762] setpgid(0, 0) = 0 [pid 5074] <... clone resumed>, child_tidptr=0x5555571745d0) = 5763 [pid 5762] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 5763 attached ) = 3 [pid 5757] munmap(0x7fdb6a513000, 4194304 [pid 5762] write(3, "1000", 4 [pid 5757] <... munmap resumed>) = 0 [pid 5762] <... write resumed>) = 4 [pid 5763] set_robust_list(0x5555571745e0, 24 [pid 5762] close(3 [pid 5757] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5762] <... close resumed>) = 0 [pid 5757] <... openat resumed>) = 4 [pid 5763] <... set_robust_list resumed>) = 0 [pid 5762] symlink("/dev/binderfs", "./binderfs" [pid 5757] ioctl(4, LOOP_SET_FD, 3 [pid 5762] <... symlink resumed>) = 0 [pid 5763] chdir("./37" [pid 5762] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5763] <... chdir resumed>) = 0 [pid 5762] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5763] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5762] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5763] <... prctl resumed>) = 0 [pid 5762] <... mprotect resumed>) = 0 [pid 5762] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5763] setpgid(0, 0) = 0 [pid 5762] <... clone resumed>, parent_tid=[5764], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5764 [pid 5762] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5763] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5762] <... futex resumed>) = 0 [pid 5756] <... ioctl resumed>) = 0 [pid 5762] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5756] close(3 [pid 5763] <... openat resumed>) = 3 [pid 5756] <... close resumed>) = 0 [pid 5763] write(3, "1000", 4 [pid 5756] mkdir("./file0", 0777./strace-static-x86_64: Process 5764 attached [pid 5763] <... write resumed>) = 4 [pid 5761] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5757] <... ioctl resumed>) = 0 [pid 5763] close(3) = 0 [pid 5763] symlink("/dev/binderfs", "./binderfs" [pid 5764] set_robust_list(0x7fdb729339e0, 24 [pid 5763] <... symlink resumed>) = 0 [pid 5756] <... mkdir resumed>) = 0 [pid 5764] <... set_robust_list resumed>) = 0 [pid 5756] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5764] memfd_create("syzkaller", 0 [pid 5763] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5757] close(3 [pid 5764] <... memfd_create resumed>) = 3 [pid 5763] <... futex resumed>) = 0 [pid 5764] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [ 110.350409][ T5756] loop5: detected capacity change from 0 to 8192 [ 110.382716][ T5757] loop1: detected capacity change from 0 to 8192 [pid 5763] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5760] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5757] <... close resumed>) = 0 [pid 5763] <... mmap resumed>) = 0x7fdb72913000 [pid 5757] mkdir("./file0", 0777) = 0 [pid 5763] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5763] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5757] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5763] <... clone resumed>, parent_tid=[5766], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5766 [pid 5763] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5763] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5766 attached [pid 5766] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5766] memfd_create("syzkaller", 0) = 3 [pid 5766] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [ 110.411968][ T5756] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 110.443887][ T5756] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [pid 5761] <... write resumed>) = 4194304 [pid 5761] munmap(0x7fdb6a513000, 4194304) = 0 [ 110.455394][ T5757] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 110.493569][ T5756] REISERFS (device loop5): using ordered data mode [ 110.501892][ T5756] reiserfs: using flush barriers [pid 5766] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5761] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5764] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5761] <... openat resumed>) = 4 [pid 5761] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5760] <... write resumed>) = 4194304 [ 110.510034][ T5757] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 110.519944][ T5756] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 110.539466][ T5761] loop2: detected capacity change from 0 to 8192 [pid 5761] close(3 [pid 5760] munmap(0x7fdb6a513000, 4194304 [pid 5766] <... write resumed>) = 4194304 [pid 5766] munmap(0x7fdb6a513000, 4194304) = 0 [pid 5766] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5761] <... close resumed>) = 0 [pid 5761] mkdir("./file0", 0777 [pid 5766] <... openat resumed>) = 4 [pid 5761] <... mkdir resumed>) = 0 [pid 5761] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5766] ioctl(4, LOOP_SET_FD, 3 [pid 5760] <... munmap resumed>) = 0 [pid 5766] <... ioctl resumed>) = 0 [pid 5766] close(3) = 0 [pid 5766] mkdir("./file0", 0777) = 0 [pid 5766] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5760] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [ 110.573460][ T5757] REISERFS (device loop1): using ordered data mode [ 110.580545][ T5757] reiserfs: using flush barriers [ 110.590219][ T5766] loop0: detected capacity change from 0 to 8192 [ 110.591126][ T5756] REISERFS (device loop5): checking transaction log (loop5) [ 110.605999][ T5761] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5760] ioctl(4, LOOP_SET_FD, 3 [pid 5764] <... write resumed>) = 4194304 [pid 5764] munmap(0x7fdb6a513000, 4194304) = 0 [pid 5764] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [ 110.621100][ T5760] loop3: detected capacity change from 0 to 8192 [ 110.629324][ T5766] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 110.629358][ T5757] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 110.658934][ T5764] loop4: detected capacity change from 0 to 8192 [pid 5764] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5760] <... ioctl resumed>) = 0 [pid 5764] close(3) = 0 [pid 5764] mkdir("./file0", 0777) = 0 [pid 5764] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5760] close(3) = 0 [pid 5760] mkdir("./file0", 0777) = 0 [ 110.659249][ T5766] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 110.675391][ T5761] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 110.681363][ T5766] REISERFS (device loop0): using ordered data mode [ 110.685339][ T5761] REISERFS (device loop2): using ordered data mode [ 110.698324][ T5761] reiserfs: using flush barriers [ 110.700725][ T5766] reiserfs: using flush barriers [ 110.704613][ T5761] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 110.715203][ T5764] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 110.725045][ T5761] REISERFS (device loop2): checking transaction log (loop2) [ 110.742736][ T5760] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 110.749665][ T5757] REISERFS (device loop1): checking transaction log (loop1) [ 110.768277][ T5766] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 110.775256][ T5764] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 110.794122][ T5764] REISERFS (device loop4): using ordered data mode [ 110.804558][ T5764] reiserfs: using flush barriers [ 110.813778][ T5764] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 110.830662][ T5760] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 110.839757][ T5764] REISERFS (device loop4): checking transaction log (loop4) [ 110.864020][ T5766] REISERFS (device loop0): checking transaction log (loop0) [ 110.895686][ T5760] REISERFS (device loop3): using ordered data mode [ 110.939221][ T5760] reiserfs: using flush barriers [ 110.972720][ T5761] REISERFS (device loop2): Using r5 hash to sort names [ 110.983204][ T5760] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5760] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5761] <... mount resumed>) = 0 [pid 5761] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5761] chdir("./file0") = 0 [pid 5761] ioctl(4, LOOP_CLR_FD) = 0 [pid 5761] close(4) = 0 [ 111.017732][ T5757] REISERFS (device loop1): Using r5 hash to sort names [ 111.024047][ T5761] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 111.035553][ T5766] REISERFS (device loop0): Using r5 hash to sort names [ 111.036321][ T5756] REISERFS (device loop5): Using r5 hash to sort names [ 111.042678][ T5766] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 111.064258][ T5760] REISERFS (device loop3): checking transaction log (loop3) [pid 5761] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5761] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5758] <... futex resumed>) = 0 [pid 5758] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5761] <... futex resumed>) = 0 [pid 5758] <... futex resumed>) = 1 [pid 5761] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5758] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5761] <... open resumed>) = 4 [pid 5761] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5758] <... futex resumed>) = 0 [pid 5761] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5758] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5761] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5758] <... futex resumed>) = 0 [pid 5761] ioctl(4, FS_IOC_GETVERSION [pid 5758] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5761] <... ioctl resumed>, 0x20000080) = 0 [pid 5761] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5766] <... mount resumed>) = 0 [pid 5761] <... futex resumed>) = 1 [pid 5758] <... futex resumed>) = 0 [pid 5766] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5761] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5758] exit_group(0 [pid 5766] <... openat resumed>) = 3 [pid 5761] <... futex resumed>) = ? [pid 5758] <... exit_group resumed>) = ? [pid 5766] chdir("./file0" [pid 5761] +++ exited with 0 +++ [pid 5758] +++ exited with 0 +++ [pid 5766] <... chdir resumed>) = 0 [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5758, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=17 /* 0.17 s */} --- [pid 5766] ioctl(4, LOOP_CLR_FD) = 0 [pid 5766] close(4 [pid 5757] <... mount resumed>) = 0 [pid 5076] umount2("./37", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5766] <... close resumed>) = 0 [pid 5757] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5766] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5757] <... openat resumed>) = 3 [pid 5076] openat(AT_FDCWD, "./37", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5766] <... futex resumed>) = 1 [pid 5763] <... futex resumed>) = 0 [pid 5757] chdir("./file0" [pid 5076] <... openat resumed>) = 3 [pid 5766] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5763] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5757] <... chdir resumed>) = 0 [pid 5076] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] getdents64(3, [pid 5766] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5763] <... futex resumed>) = 0 [pid 5757] ioctl(4, LOOP_CLR_FD [pid 5076] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5766] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5763] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5757] <... ioctl resumed>) = 0 [ 111.072096][ T5757] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 111.081391][ T5756] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 111.111227][ T5764] REISERFS (device loop4): Using r5 hash to sort names [pid 5076] umount2("./37/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5766] <... open resumed>) = 4 [pid 5757] close(4 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5766] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5757] <... close resumed>) = 0 [pid 5076] lstat("./37/binderfs", [pid 5766] <... futex resumed>) = 1 [pid 5763] <... futex resumed>) = 0 [pid 5757] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5756] <... mount resumed>) = 0 [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5766] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5763] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5757] <... futex resumed>) = 1 [pid 5756] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5755] <... futex resumed>) = 0 [pid 5076] unlink("./37/binderfs" [pid 5766] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5763] <... futex resumed>) = 0 [pid 5757] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5756] <... openat resumed>) = 3 [pid 5755] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5076] <... unlink resumed>) = 0 [pid 5766] ioctl(4, FS_IOC_GETVERSION [pid 5763] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5757] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5756] chdir("./file0" [pid 5755] <... futex resumed>) = 0 [pid 5076] umount2("./37/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5766] <... ioctl resumed>, 0x20000080) = 0 [pid 5757] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5756] <... chdir resumed>) = 0 [pid 5755] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5766] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5757] <... open resumed>) = 4 [pid 5756] ioctl(4, LOOP_CLR_FD [pid 5766] <... futex resumed>) = 1 [pid 5763] <... futex resumed>) = 0 [pid 5757] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5756] <... ioctl resumed>) = 0 [pid 5766] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5763] exit_group(0 [pid 5757] <... futex resumed>) = 1 [pid 5756] close(4 [pid 5755] <... futex resumed>) = 0 [pid 5766] <... futex resumed>) = ? [pid 5763] <... exit_group resumed>) = ? [pid 5757] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5756] <... close resumed>) = 0 [pid 5755] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5766] +++ exited with 0 +++ [pid 5756] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5754] <... futex resumed>) = 0 [pid 5763] +++ exited with 0 +++ [pid 5757] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5756] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5755] <... futex resumed>) = 0 [pid 5754] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5757] ioctl(4, FS_IOC_GETVERSION [pid 5756] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5755] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5754] <... futex resumed>) = 0 [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5763, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=18 /* 0.18 s */} --- [pid 5757] <... ioctl resumed>, 0x20000080) = 0 [pid 5756] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5754] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5074] restart_syscall(<... resuming interrupted clone ...> [pid 5757] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5756] <... open resumed>) = 4 [pid 5074] <... restart_syscall resumed>) = 0 [pid 5757] <... futex resumed>) = 1 [pid 5756] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5755] <... futex resumed>) = 0 [pid 5764] <... mount resumed>) = 0 [pid 5757] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5756] <... futex resumed>) = 1 [pid 5754] <... futex resumed>) = 0 [pid 5764] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5756] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5754] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5074] umount2("./37", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5764] <... openat resumed>) = 3 [pid 5756] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5755] exit_group(0 [pid 5754] <... futex resumed>) = 0 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5764] chdir("./file0" [pid 5757] <... futex resumed>) = ? [pid 5756] ioctl(4, FS_IOC_GETVERSION [pid 5755] <... exit_group resumed>) = ? [pid 5754] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5074] openat(AT_FDCWD, "./37", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5764] <... chdir resumed>) = 0 [pid 5757] +++ exited with 0 +++ [pid 5756] <... ioctl resumed>, 0x20000080) = 0 [pid 5074] <... openat resumed>) = 3 [pid 5764] ioctl(4, LOOP_CLR_FD [pid 5756] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5755] +++ exited with 0 +++ [pid 5074] fstat(3, [pid 5764] <... ioctl resumed>) = 0 [pid 5756] <... futex resumed>) = 1 [pid 5754] <... futex resumed>) = 0 [ 111.149181][ T5764] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5755, si_uid=0, si_status=0, si_utime=0, si_stime=23 /* 0.23 s */} --- [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5764] close(4 [pid 5756] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5754] exit_group(0 [pid 5075] restart_syscall(<... resuming interrupted clone ...> [pid 5074] getdents64(3, [pid 5764] <... close resumed>) = 0 [pid 5756] <... futex resumed>) = ? [pid 5754] <... exit_group resumed>) = ? [pid 5075] <... restart_syscall resumed>) = 0 [pid 5074] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5764] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5756] +++ exited with 0 +++ [pid 5754] +++ exited with 0 +++ [pid 5074] umount2("./37/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5764] <... futex resumed>) = 1 [pid 5762] <... futex resumed>) = 0 [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5754, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} --- [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5764] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5762] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5075] umount2("./36", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] lstat("./37/binderfs", [pid 5764] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5762] <... futex resumed>) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5764] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5762] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5075] openat(AT_FDCWD, "./36", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5074] unlink("./37/binderfs" [pid 5764] <... open resumed>) = 4 [pid 5075] <... openat resumed>) = 3 [pid 5074] <... unlink resumed>) = 0 [pid 5764] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5075] fstat(3, [pid 5074] umount2("./37/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5764] <... futex resumed>) = 1 [pid 5762] <... futex resumed>) = 0 [pid 5079] umount2("./36", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5764] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5762] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] getdents64(3, [pid 5764] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5762] <... futex resumed>) = 0 [pid 5079] openat(AT_FDCWD, "./36", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5764] ioctl(4, FS_IOC_GETVERSION [pid 5762] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5079] <... openat resumed>) = 3 [pid 5075] umount2("./36/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5764] <... ioctl resumed>, 0x20000080) = 0 [pid 5079] fstat(3, [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5764] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] lstat("./36/binderfs", [pid 5764] <... futex resumed>) = 1 [pid 5762] <... futex resumed>) = 0 [pid 5079] getdents64(3, [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5764] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5762] exit_group(0 [pid 5079] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5075] unlink("./36/binderfs" [pid 5764] <... futex resumed>) = ? [pid 5762] <... exit_group resumed>) = ? [pid 5079] umount2("./36/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... unlink resumed>) = 0 [pid 5764] +++ exited with 0 +++ [pid 5762] +++ exited with 0 +++ [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] umount2("./36/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] lstat("./36/binderfs", [pid 5078] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5762, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] unlink("./36/binderfs") = 0 [pid 5078] umount2("./37", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] umount2("./36/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5078] openat(AT_FDCWD, "./37", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5078] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5078] umount2("./37/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5078] lstat("./37/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5078] unlink("./37/binderfs") = 0 [pid 5078] umount2("./37/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... umount2 resumed>) = 0 [pid 5076] umount2("./37/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5076] lstat("./37/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] umount2("./37/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5076] openat(AT_FDCWD, "./37/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5076] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5076] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5076] close(4) = 0 [pid 5076] rmdir("./37/file0" [pid 5760] <... mount resumed>) = 0 [pid 5760] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5760] chdir("./file0") = 0 [pid 5760] ioctl(4, LOOP_CLR_FD [pid 5076] <... rmdir resumed>) = 0 [pid 5076] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5076] close(3) = 0 [pid 5760] <... ioctl resumed>) = 0 [pid 5760] close(4 [pid 5076] rmdir("./37" [pid 5760] <... close resumed>) = 0 [pid 5760] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5759] <... futex resumed>) = 0 [pid 5759] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5759] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5760] <... futex resumed>) = 1 [pid 5760] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [ 111.299131][ T5760] REISERFS (device loop3): Using r5 hash to sort names [ 111.314698][ T5760] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [pid 5760] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5759] <... futex resumed>) = 0 [pid 5759] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5759] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5760] <... futex resumed>) = 1 [pid 5760] ioctl(4, FS_IOC_GETVERSION, 0x20000080) = 0 [pid 5760] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5759] <... futex resumed>) = 0 [pid 5759] exit_group(0) = ? [pid 5760] <... futex resumed>) = ? [pid 5760] +++ exited with 0 +++ [pid 5759] +++ exited with 0 +++ [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5759, si_uid=0, si_status=0, si_utime=0, si_stime=21 /* 0.21 s */} --- [pid 5077] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5077] umount2("./38", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] openat(AT_FDCWD, "./38", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5077] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5077] umount2("./38/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] lstat("./38/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] unlink("./38/binderfs") = 0 [pid 5077] umount2("./38/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5078] <... umount2 resumed>) = 0 [pid 5076] <... rmdir resumed>) = 0 [pid 5078] umount2("./37/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5076] mkdir("./38", 0777 [pid 5078] lstat("./37/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] umount2("./37/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5078] openat(AT_FDCWD, "./37/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5078] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] <... mkdir resumed>) = 0 [pid 5078] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5076] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5078] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5076] <... openat resumed>) = 3 [pid 5078] close(4) = 0 [pid 5076] ioctl(3, LOOP_CLR_FD [pid 5078] rmdir("./37/file0") = 0 [pid 5076] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5078] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5076] close(3 [pid 5078] close(3) = 0 [pid 5076] <... close resumed>) = 0 [pid 5078] rmdir("./37") = 0 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5078] mkdir("./38", 0777) = 0 [pid 5078] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5078] ioctl(3, LOOP_CLR_FD [pid 5076] <... clone resumed>, child_tidptr=0x5555571745d0) = 5772 [pid 5078] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5078] close(3) = 0 [pid 5078] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5773 ./strace-static-x86_64: Process 5772 attached [pid 5772] set_robust_list(0x5555571745e0, 24./strace-static-x86_64: Process 5773 attached ) = 0 [pid 5772] chdir("./38" [pid 5773] set_robust_list(0x5555571745e0, 24 [pid 5772] <... chdir resumed>) = 0 [pid 5772] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5773] <... set_robust_list resumed>) = 0 [pid 5772] <... prctl resumed>) = 0 [pid 5772] setpgid(0, 0 [pid 5773] chdir("./38") = 0 [pid 5772] <... setpgid resumed>) = 0 [pid 5773] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5772] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5773] <... prctl resumed>) = 0 [pid 5772] <... openat resumed>) = 3 [pid 5773] setpgid(0, 0 [pid 5772] write(3, "1000", 4 [pid 5773] <... setpgid resumed>) = 0 [pid 5772] <... write resumed>) = 4 [pid 5773] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5772] close(3 [pid 5773] <... openat resumed>) = 3 [pid 5772] <... close resumed>) = 0 [pid 5773] write(3, "1000", 4 [pid 5772] symlink("/dev/binderfs", "./binderfs" [pid 5773] <... write resumed>) = 4 [pid 5773] close(3 [pid 5772] <... symlink resumed>) = 0 [pid 5773] <... close resumed>) = 0 [pid 5772] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5773] symlink("/dev/binderfs", "./binderfs" [pid 5772] <... futex resumed>) = 0 [pid 5773] <... symlink resumed>) = 0 [pid 5772] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5773] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5772] <... mmap resumed>) = 0x7fdb72913000 [pid 5773] <... futex resumed>) = 0 [pid 5772] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5773] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5079] <... umount2 resumed>) = 0 [pid 5077] <... umount2 resumed>) = 0 [pid 5773] <... mmap resumed>) = 0x7fdb72913000 [pid 5772] <... mprotect resumed>) = 0 [pid 5079] umount2("./36/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] umount2("./38/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5773] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5772] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5773] <... mprotect resumed>) = 0 [pid 5079] lstat("./36/file0", [pid 5773] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5772] <... clone resumed>, parent_tid=[5774], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5774 [pid 5079] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] lstat("./38/file0", [pid 5772] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] umount2("./36/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5773] <... clone resumed>, parent_tid=[5775], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5775 [pid 5772] <... futex resumed>) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5773] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5772] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5079] openat(AT_FDCWD, "./36/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5773] <... futex resumed>) = 0 [pid 5079] <... openat resumed>) = 4 [pid 5077] umount2("./38/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5773] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5079] fstat(4, ./strace-static-x86_64: Process 5775 attached [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5775] set_robust_list(0x7fdb729339e0, 24 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] openat(AT_FDCWD, "./38/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5775] <... set_robust_list resumed>) = 0 [pid 5079] getdents64(4, [pid 5775] memfd_create("syzkaller", 0 [pid 5079] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5077] <... openat resumed>) = 4 ./strace-static-x86_64: Process 5774 attached [pid 5775] <... memfd_create resumed>) = 3 [pid 5079] getdents64(4, [pid 5775] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5774] set_robust_list(0x7fdb729339e0, 24 [pid 5079] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5077] fstat(4, [pid 5079] close(4 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5774] <... set_robust_list resumed>) = 0 [pid 5079] <... close resumed>) = 0 [pid 5077] getdents64(4, [pid 5775] <... mmap resumed>) = 0x7fdb6a513000 [pid 5774] memfd_create("syzkaller", 0 [pid 5079] rmdir("./36/file0" [pid 5077] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5774] <... memfd_create resumed>) = 3 [pid 5079] <... rmdir resumed>) = 0 [pid 5077] getdents64(4, [pid 5774] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5079] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5077] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5774] <... mmap resumed>) = 0x7fdb6a513000 [pid 5079] close(3 [pid 5077] close(4 [pid 5079] <... close resumed>) = 0 [pid 5077] <... close resumed>) = 0 [pid 5079] rmdir("./36" [pid 5077] rmdir("./38/file0" [pid 5079] <... rmdir resumed>) = 0 [pid 5079] mkdir("./37", 0777 [pid 5077] <... rmdir resumed>) = 0 [pid 5079] <... mkdir resumed>) = 0 [pid 5077] getdents64(3, [pid 5079] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5077] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5079] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5077] close(3 [pid 5079] close(3) = 0 [pid 5077] <... close resumed>) = 0 [pid 5077] rmdir("./38" [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] <... rmdir resumed>) = 0 [pid 5077] mkdir("./39", 0777) = 0 [pid 5079] <... clone resumed>, child_tidptr=0x5555571745d0) = 5776 [pid 5077] openat(AT_FDCWD, "/dev/loop3", O_RDWR./strace-static-x86_64: Process 5776 attached [pid 5776] set_robust_list(0x5555571745e0, 24) = 0 [pid 5074] <... umount2 resumed>) = 0 [pid 5776] chdir("./37") = 0 [pid 5776] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5074] umount2("./37/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5776] setpgid(0, 0) = 0 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5776] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5074] lstat("./37/file0", [pid 5776] <... openat resumed>) = 3 [pid 5074] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5776] write(3, "1000", 4 [pid 5074] umount2("./37/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5776] <... write resumed>) = 4 [pid 5776] close(3) = 0 [pid 5075] <... umount2 resumed>) = 0 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5776] symlink("/dev/binderfs", "./binderfs" [pid 5075] umount2("./36/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] openat(AT_FDCWD, "./37/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5776] <... symlink resumed>) = 0 [pid 5776] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] <... openat resumed>) = 4 [pid 5776] <... futex resumed>) = 0 [pid 5075] lstat("./36/file0", [pid 5074] fstat(4, [pid 5776] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5075] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5776] <... mmap resumed>) = 0x7fdb72913000 [pid 5075] umount2("./36/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] getdents64(4, [pid 5776] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5776] <... mprotect resumed>) = 0 [pid 5075] openat(AT_FDCWD, "./36/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5074] getdents64(4, [pid 5776] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5075] <... openat resumed>) = 4 [pid 5074] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5075] fstat(4, [pid 5074] close(4 [pid 5776] <... clone resumed>, parent_tid=[5777], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5777 [pid 5077] <... openat resumed>) = 3 [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] <... close resumed>) = 0 [pid 5776] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] ioctl(3, LOOP_CLR_FD [pid 5075] getdents64(4, [pid 5074] rmdir("./37/file0"./strace-static-x86_64: Process 5777 attached [pid 5776] <... futex resumed>) = 0 [pid 5077] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5075] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5074] <... rmdir resumed>) = 0 [pid 5777] set_robust_list(0x7fdb729339e0, 24 [pid 5776] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5077] close(3 [pid 5075] getdents64(4, [pid 5074] getdents64(3, [pid 5777] <... set_robust_list resumed>) = 0 [pid 5077] <... close resumed>) = 0 [pid 5075] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5074] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5075] close(4 [pid 5074] close(3 [pid 5075] <... close resumed>) = 0 [pid 5074] <... close resumed>) = 0 [pid 5075] rmdir("./36/file0" [pid 5074] rmdir("./37" [pid 5075] <... rmdir resumed>) = 0 [pid 5074] <... rmdir resumed>) = 0 [pid 5075] getdents64(3, [pid 5074] mkdir("./38", 0777 [pid 5075] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5074] <... mkdir resumed>) = 0 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] close(3 [pid 5074] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5777] memfd_create("syzkaller", 0 [pid 5075] <... close resumed>) = 0 [pid 5074] <... openat resumed>) = 3 [pid 5075] rmdir("./36" [pid 5074] ioctl(3, LOOP_CLR_FD [pid 5777] <... memfd_create resumed>) = 3 [pid 5075] <... rmdir resumed>) = 0 [pid 5074] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5777] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5775] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5077] <... clone resumed>, child_tidptr=0x5555571745d0) = 5778 [pid 5075] mkdir("./37", 0777 [pid 5074] close(3 [pid 5777] <... mmap resumed>) = 0x7fdb6a513000 [pid 5075] <... mkdir resumed>) = 0 [pid 5074] <... close resumed>) = 0 [pid 5075] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5778 attached [pid 5774] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5075] <... openat resumed>) = 3 [pid 5778] set_robust_list(0x5555571745e0, 24 [pid 5075] ioctl(3, LOOP_CLR_FD [pid 5074] <... clone resumed>, child_tidptr=0x5555571745d0) = 5779 [pid 5778] <... set_robust_list resumed>) = 0 [pid 5075] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5778] chdir("./39" [pid 5075] close(3 [pid 5778] <... chdir resumed>) = 0 [pid 5075] <... close resumed>) = 0 ./strace-static-x86_64: Process 5779 attached [pid 5778] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5779] set_robust_list(0x5555571745e0, 24 [pid 5778] <... prctl resumed>) = 0 [pid 5779] <... set_robust_list resumed>) = 0 [pid 5778] setpgid(0, 0 [pid 5075] <... clone resumed>, child_tidptr=0x5555571745d0) = 5780 [pid 5779] chdir("./38" [pid 5778] <... setpgid resumed>) = 0 [pid 5779] <... chdir resumed>) = 0 [pid 5778] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5779] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5778] <... openat resumed>) = 3 [pid 5779] <... prctl resumed>) = 0 [pid 5778] write(3, "1000", 4 [pid 5779] setpgid(0, 0 [pid 5778] <... write resumed>) = 4 [pid 5779] <... setpgid resumed>) = 0 [pid 5778] close(3 [pid 5779] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5778] <... close resumed>) = 0 [pid 5779] <... openat resumed>) = 3 [pid 5778] symlink("/dev/binderfs", "./binderfs" [pid 5779] write(3, "1000", 4 [pid 5778] <... symlink resumed>) = 0 [pid 5779] <... write resumed>) = 4 [pid 5778] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5779] close(3 [pid 5778] <... futex resumed>) = 0 ./strace-static-x86_64: Process 5780 attached [pid 5779] <... close resumed>) = 0 [pid 5778] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5780] set_robust_list(0x5555571745e0, 24 [pid 5779] symlink("/dev/binderfs", "./binderfs" [pid 5778] <... mmap resumed>) = 0x7fdb72913000 [pid 5780] <... set_robust_list resumed>) = 0 [pid 5779] <... symlink resumed>) = 0 [pid 5778] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5780] chdir("./37" [pid 5779] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5778] <... mprotect resumed>) = 0 [pid 5780] <... chdir resumed>) = 0 [pid 5779] <... futex resumed>) = 0 [pid 5778] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5780] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5779] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5780] <... prctl resumed>) = 0 [pid 5779] <... mmap resumed>) = 0x7fdb72913000 [pid 5778] <... clone resumed>, parent_tid=[5781], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5781 [pid 5780] setpgid(0, 0 [pid 5779] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5778] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5780] <... setpgid resumed>) = 0 [pid 5779] <... mprotect resumed>) = 0 [pid 5778] <... futex resumed>) = 0 ./strace-static-x86_64: Process 5781 attached [pid 5780] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5779] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5778] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5777] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5779] <... clone resumed>, parent_tid=[5782], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5782 [pid 5779] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5779] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5782 attached [pid 5782] set_robust_list(0x7fdb729339e0, 24 [pid 5781] set_robust_list(0x7fdb729339e0, 24 [pid 5782] <... set_robust_list resumed>) = 0 [pid 5780] <... openat resumed>) = 3 [pid 5782] memfd_create("syzkaller", 0 [pid 5781] <... set_robust_list resumed>) = 0 [pid 5780] write(3, "1000", 4 [pid 5782] <... memfd_create resumed>) = 3 [pid 5782] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [pid 5781] memfd_create("syzkaller", 0) = 3 [pid 5780] <... write resumed>) = 4 [pid 5781] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5780] close(3 [pid 5781] <... mmap resumed>) = 0x7fdb6a513000 [pid 5780] <... close resumed>) = 0 [pid 5780] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5780] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5780] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5780] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5780] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5783], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5783 [pid 5780] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5780] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5783 attached [pid 5783] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5783] memfd_create("syzkaller", 0) = 3 [pid 5783] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [pid 5781] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5777] <... write resumed>) = 4194304 [pid 5774] <... write resumed>) = 4194304 [pid 5777] munmap(0x7fdb6a513000, 4194304 [pid 5775] <... write resumed>) = 4194304 [pid 5775] munmap(0x7fdb6a513000, 4194304 [pid 5777] <... munmap resumed>) = 0 [pid 5775] <... munmap resumed>) = 0 [pid 5777] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5774] munmap(0x7fdb6a513000, 4194304 [pid 5777] <... openat resumed>) = 4 [pid 5775] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5777] ioctl(4, LOOP_SET_FD, 3 [pid 5775] <... openat resumed>) = 4 [pid 5774] <... munmap resumed>) = 0 [pid 5775] ioctl(4, LOOP_SET_FD, 3 [pid 5781] <... write resumed>) = 4194304 [pid 5777] <... ioctl resumed>) = 0 [pid 5774] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5782] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5774] <... openat resumed>) = 4 [pid 5781] munmap(0x7fdb6a513000, 4194304 [pid 5777] close(3 [pid 5775] <... ioctl resumed>) = 0 [pid 5775] close(3) = 0 [pid 5775] mkdir("./file0", 0777) = 0 [pid 5775] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5774] ioctl(4, LOOP_SET_FD, 3 [pid 5781] <... munmap resumed>) = 0 [pid 5777] <... close resumed>) = 0 [pid 5783] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5781] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5777] mkdir("./file0", 0777 [pid 5774] <... ioctl resumed>) = 0 [pid 5781] <... openat resumed>) = 4 [pid 5777] <... mkdir resumed>) = 0 [pid 5774] close(3 [pid 5781] ioctl(4, LOOP_SET_FD, 3 [pid 5777] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5774] <... close resumed>) = 0 [ 111.838007][ T5777] loop5: detected capacity change from 0 to 8192 [ 111.839198][ T5775] loop4: detected capacity change from 0 to 8192 [ 111.864702][ T5774] loop2: detected capacity change from 0 to 8192 [ 111.868047][ T5775] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5774] mkdir("./file0", 0777) = 0 [pid 5774] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5781] <... ioctl resumed>) = 0 [pid 5781] close(3) = 0 [pid 5781] mkdir("./file0", 0777) = 0 [ 111.887087][ T5781] loop3: detected capacity change from 0 to 8192 [ 111.887758][ T5775] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 111.909376][ T5777] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 111.909737][ T5775] REISERFS (device loop4): using ordered data mode [ 111.922905][ T5777] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 111.939111][ T5777] REISERFS (device loop5): using ordered data mode [ 111.946085][ T5777] reiserfs: using flush barriers [ 111.946651][ T5774] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 111.952331][ T5775] reiserfs: using flush barriers [ 111.965068][ T5781] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 111.969053][ T5777] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 111.999965][ T5775] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 112.018261][ T5777] REISERFS (device loop5): checking transaction log (loop5) [pid 5781] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5783] <... write resumed>) = 4194304 [pid 5782] <... write resumed>) = 4194304 [pid 5782] munmap(0x7fdb6a513000, 4194304) = 0 [pid 5782] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5782] ioctl(4, LOOP_SET_FD, 3 [pid 5783] munmap(0x7fdb6a513000, 4194304) = 0 [pid 5783] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5783] ioctl(4, LOOP_SET_FD, 3 [pid 5782] <... ioctl resumed>) = 0 [pid 5782] close(3) = 0 [pid 5782] mkdir("./file0", 0777) = 0 [ 112.034695][ T5774] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 112.043988][ T5775] REISERFS (device loop4): checking transaction log (loop4) [ 112.047131][ T5782] loop0: detected capacity change from 0 to 8192 [ 112.060989][ T5781] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 112.061086][ T5783] loop1: detected capacity change from 0 to 8192 [ 112.073166][ T5774] REISERFS (device loop2): using ordered data mode [pid 5783] <... ioctl resumed>) = 0 [pid 5783] close(3 [pid 5782] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5783] <... close resumed>) = 0 [pid 5783] mkdir("./file0", 0777) = 0 [ 112.097183][ T5781] REISERFS (device loop3): using ordered data mode [ 112.113535][ T5774] reiserfs: using flush barriers [ 112.113872][ T5781] reiserfs: using flush barriers [ 112.125225][ T5782] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 112.139846][ T5781] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 112.153498][ T5774] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 112.158921][ T5781] REISERFS (device loop3): checking transaction log (loop3) [ 112.173740][ T5783] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 112.192866][ T5782] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 112.202622][ T5782] REISERFS (device loop0): using ordered data mode [ 112.209526][ T5782] reiserfs: using flush barriers [ 112.216399][ T5782] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 112.216514][ T5774] REISERFS (device loop2): checking transaction log (loop2) [ 112.256382][ T5783] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 112.266098][ T5783] REISERFS (device loop1): using ordered data mode [ 112.272832][ T5783] reiserfs: using flush barriers [ 112.279947][ T5782] REISERFS (device loop0): checking transaction log (loop0) [ 112.281025][ T5783] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 112.304403][ T5783] REISERFS (device loop1): checking transaction log (loop1) [ 112.325595][ T5777] REISERFS (device loop5): Using r5 hash to sort names [ 112.345019][ T5777] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 5783] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5777] <... mount resumed>) = 0 [pid 5777] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5777] chdir("./file0") = 0 [pid 5777] ioctl(4, LOOP_CLR_FD) = 0 [ 112.345573][ T5775] REISERFS (device loop4): Using r5 hash to sort names [pid 5777] close(4) = 0 [pid 5777] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5776] <... futex resumed>) = 0 [pid 5777] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5776] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5777] <... open resumed>) = 4 [pid 5776] <... futex resumed>) = 0 [pid 5777] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5776] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5777] <... futex resumed>) = 0 [pid 5776] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5777] ioctl(4, FS_IOC_GETVERSION [pid 5776] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5777] <... ioctl resumed>, 0x20000080) = 0 [pid 5776] <... futex resumed>) = 0 [pid 5777] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5776] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5777] <... futex resumed>) = 0 [pid 5776] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5777] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5776] exit_group(0 [pid 5777] <... futex resumed>) = ? [pid 5776] <... exit_group resumed>) = ? [pid 5777] +++ exited with 0 +++ [pid 5776] +++ exited with 0 +++ [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5776, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=21 /* 0.21 s */} --- [pid 5079] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5079] umount2("./37", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./37", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5079] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5079] umount2("./37/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] lstat("./37/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] unlink("./37/binderfs") = 0 [pid 5079] umount2("./37/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5775] <... mount resumed>) = 0 [pid 5775] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5775] chdir("./file0") = 0 [pid 5775] ioctl(4, LOOP_CLR_FD) = 0 [ 112.414775][ T5775] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [pid 5775] close(4) = 0 [pid 5775] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5775] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5773] <... futex resumed>) = 0 [pid 5773] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5775] <... futex resumed>) = 0 [pid 5773] <... futex resumed>) = 1 [pid 5775] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 5775] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5775] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5773] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5773] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5775] <... futex resumed>) = 0 [pid 5773] <... futex resumed>) = 1 [pid 5775] ioctl(4, FS_IOC_GETVERSION, 0x20000080) = 0 [pid 5775] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5773] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5775] <... futex resumed>) = 0 [pid 5775] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5773] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5773] exit_group(0 [pid 5775] <... futex resumed>) = ? [pid 5773] <... exit_group resumed>) = ? [pid 5775] +++ exited with 0 +++ [pid 5773] +++ exited with 0 +++ [pid 5078] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5773, si_uid=0, si_status=0, si_utime=0, si_stime=23 /* 0.23 s */} --- [pid 5078] umount2("./38", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5078] openat(AT_FDCWD, "./38", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5078] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [ 112.486837][ T5781] REISERFS (device loop3): Using r5 hash to sort names [ 112.497524][ T5774] REISERFS (device loop2): Using r5 hash to sort names [ 112.522134][ T5781] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [pid 5078] umount2("./38/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5781] <... mount resumed>) = 0 [pid 5774] <... mount resumed>) = 0 [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5078] lstat("./38/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5078] unlink("./38/binderfs") = 0 [pid 5078] umount2("./38/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5781] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5781] chdir("./file0") = 0 [pid 5781] ioctl(4, LOOP_CLR_FD) = 0 [pid 5781] close(4) = 0 [pid 5781] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5774] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5778] <... futex resumed>) = 0 [pid 5778] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5781] <... futex resumed>) = 1 [pid 5778] <... futex resumed>) = 0 [pid 5781] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5778] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5774] chdir("./file0" [pid 5781] <... open resumed>) = 4 [pid 5774] <... chdir resumed>) = 0 [pid 5781] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5774] ioctl(4, LOOP_CLR_FD [pid 5781] <... futex resumed>) = 1 [pid 5778] <... futex resumed>) = 0 [pid 5774] <... ioctl resumed>) = 0 [pid 5781] ioctl(4, FS_IOC_GETVERSION [pid 5778] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5774] close(4 [pid 5781] <... ioctl resumed>, 0x20000080) = 0 [pid 5778] <... futex resumed>) = 0 [pid 5774] <... close resumed>) = 0 [pid 5781] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5778] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5774] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5781] <... futex resumed>) = 0 [pid 5778] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5774] <... futex resumed>) = 1 [pid 5772] <... futex resumed>) = 0 [pid 5781] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5778] exit_group(0 [pid 5774] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5772] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5781] <... futex resumed>) = ? [pid 5778] <... exit_group resumed>) = ? [pid 5774] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5772] <... futex resumed>) = 0 [pid 5781] +++ exited with 0 +++ [pid 5778] +++ exited with 0 +++ [pid 5774] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5772] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5774] <... open resumed>) = 4 [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5778, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=18 /* 0.18 s */} --- [ 112.533689][ T5774] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 112.537953][ T5782] REISERFS (device loop0): Using r5 hash to sort names [pid 5774] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5772] <... futex resumed>) = 0 [pid 5774] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5772] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] umount2("./39", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5774] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5772] <... futex resumed>) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5774] ioctl(4, FS_IOC_GETVERSION [pid 5772] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5077] openat(AT_FDCWD, "./39", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5774] <... ioctl resumed>, 0x20000080) = 0 [pid 5077] <... openat resumed>) = 3 [pid 5774] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] fstat(3, [pid 5774] <... futex resumed>) = 1 [pid 5772] <... futex resumed>) = 0 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5774] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5772] exit_group(0 [pid 5077] getdents64(3, [pid 5774] <... futex resumed>) = ? [pid 5772] <... exit_group resumed>) = ? [pid 5077] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5774] +++ exited with 0 +++ [pid 5772] +++ exited with 0 +++ [pid 5077] umount2("./39/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5772, si_uid=0, si_status=0, si_utime=0, si_stime=23 /* 0.23 s */} --- [pid 5077] lstat("./39/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] unlink("./39/binderfs") = 0 [pid 5077] umount2("./39/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] umount2("./38", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5076] openat(AT_FDCWD, "./38", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5076] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5076] umount2("./38/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5076] lstat("./38/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] unlink("./38/binderfs") = 0 [pid 5076] umount2("./38/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5782] <... mount resumed>) = 0 [ 112.599029][ T5783] REISERFS (device loop1): Using r5 hash to sort names [ 112.633664][ T5782] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5782] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5782] chdir("./file0") = 0 [ 112.646367][ T5783] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [pid 5782] ioctl(4, LOOP_CLR_FD [pid 5783] <... mount resumed>) = 0 [pid 5782] <... ioctl resumed>) = 0 [pid 5079] <... umount2 resumed>) = 0 [pid 5783] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5782] close(4 [pid 5079] umount2("./37/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5783] <... openat resumed>) = 3 [pid 5782] <... close resumed>) = 0 [pid 5078] <... umount2 resumed>) = 0 [pid 5078] umount2("./38/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5783] chdir("./file0" [pid 5782] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5783] <... chdir resumed>) = 0 [pid 5782] <... futex resumed>) = 1 [pid 5079] lstat("./37/file0", [pid 5783] ioctl(4, LOOP_CLR_FD [pid 5782] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5079] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5783] <... ioctl resumed>) = 0 [pid 5079] umount2("./37/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5783] close(4 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5783] <... close resumed>) = 0 [pid 5779] <... futex resumed>) = 0 [pid 5079] openat(AT_FDCWD, "./37/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5783] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5780] <... futex resumed>) = 0 [pid 5779] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] <... openat resumed>) = 4 [pid 5783] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5782] <... futex resumed>) = 0 [pid 5780] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5779] <... futex resumed>) = 1 [pid 5079] fstat(4, [pid 5783] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5782] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5780] <... futex resumed>) = 0 [pid 5779] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5783] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5782] <... open resumed>) = 4 [pid 5783] <... open resumed>) = 4 [pid 5782] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5780] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5079] getdents64(4, [pid 5783] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5782] <... futex resumed>) = 1 [pid 5779] <... futex resumed>) = 0 [pid 5079] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5783] <... futex resumed>) = 1 [pid 5782] ioctl(4, FS_IOC_GETVERSION [pid 5780] <... futex resumed>) = 0 [pid 5779] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] getdents64(4, [pid 5783] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5782] <... ioctl resumed>, 0x20000080) = 0 [pid 5780] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5779] <... futex resumed>) = 0 [pid 5079] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5783] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5782] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5780] <... futex resumed>) = 0 [pid 5779] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5079] close(4 [pid 5783] ioctl(4, FS_IOC_GETVERSION [pid 5782] <... futex resumed>) = 0 [pid 5780] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5779] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5079] <... close resumed>) = 0 [pid 5783] <... ioctl resumed>, 0x20000080) = 0 [pid 5782] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5779] exit_group(0 [pid 5079] rmdir("./37/file0" [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5783] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5782] <... futex resumed>) = ? [pid 5779] <... exit_group resumed>) = ? [pid 5078] lstat("./38/file0", [pid 5783] <... futex resumed>) = 1 [pid 5782] +++ exited with 0 +++ [pid 5780] <... futex resumed>) = 0 [pid 5779] +++ exited with 0 +++ [pid 5079] <... rmdir resumed>) = 0 [pid 5078] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5783] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5780] exit_group(0 [pid 5079] getdents64(3, [pid 5078] umount2("./38/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5783] <... futex resumed>) = ? [pid 5780] <... exit_group resumed>) = ? [pid 5079] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5779, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- [pid 5783] +++ exited with 0 +++ [pid 5078] openat(AT_FDCWD, "./38/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5074] restart_syscall(<... resuming interrupted clone ...> [pid 5780] +++ exited with 0 +++ [pid 5078] <... openat resumed>) = 4 [pid 5074] <... restart_syscall resumed>) = 0 [pid 5079] close(3 [pid 5078] fstat(4, [pid 5079] <... close resumed>) = 0 [pid 5078] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5780, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=15 /* 0.15 s */} --- [pid 5079] rmdir("./37" [pid 5078] getdents64(4, [pid 5075] restart_syscall(<... resuming interrupted clone ...> [pid 5074] umount2("./38", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... rmdir resumed>) = 0 [pid 5078] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5075] <... restart_syscall resumed>) = 0 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] mkdir("./38", 0777 [pid 5078] getdents64(4, [pid 5074] openat(AT_FDCWD, "./38", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] <... mkdir resumed>) = 0 [pid 5078] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5074] <... openat resumed>) = 3 [pid 5079] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5078] close(4 [pid 5075] umount2("./37", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] fstat(3, [pid 5079] <... openat resumed>) = 3 [pid 5078] <... close resumed>) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] ioctl(3, LOOP_CLR_FD [pid 5078] rmdir("./38/file0" [pid 5075] openat(AT_FDCWD, "./37", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5074] getdents64(3, [pid 5079] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5078] <... rmdir resumed>) = 0 [pid 5075] <... openat resumed>) = 3 [pid 5074] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5079] close(3 [pid 5078] getdents64(3, [pid 5075] fstat(3, [pid 5074] umount2("./38/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... close resumed>) = 0 [pid 5078] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5078] close(3 [pid 5075] getdents64(3, [pid 5074] lstat("./38/binderfs", [pid 5078] <... close resumed>) = 0 [pid 5075] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5074] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5078] rmdir("./38" [pid 5075] umount2("./37/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] unlink("./38/binderfs" [pid 5079] <... clone resumed>, child_tidptr=0x5555571745d0) = 5790 [pid 5078] <... rmdir resumed>) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] <... unlink resumed>) = 0 [pid 5078] mkdir("./39", 0777 [pid 5075] lstat("./37/binderfs", [pid 5074] umount2("./38/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5078] <... mkdir resumed>) = 0 [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5078] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5075] unlink("./37/binderfs" [pid 5078] <... openat resumed>) = 3 [pid 5075] <... unlink resumed>) = 0 [pid 5078] ioctl(3, LOOP_CLR_FD [pid 5075] umount2("./37/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5790 attached [pid 5078] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5790] set_robust_list(0x5555571745e0, 24 [pid 5078] close(3 [pid 5790] <... set_robust_list resumed>) = 0 [pid 5078] <... close resumed>) = 0 [pid 5790] chdir("./38" [pid 5078] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5790] <... chdir resumed>) = 0 [pid 5790] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5078] <... clone resumed>, child_tidptr=0x5555571745d0) = 5791 [pid 5790] <... prctl resumed>) = 0 [pid 5790] setpgid(0, 0) = 0 [pid 5790] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5790] write(3, "1000", 4) = 4 [pid 5790] close(3) = 0 [pid 5790] symlink("/dev/binderfs", "./binderfs") = 0 ./strace-static-x86_64: Process 5791 attached [pid 5790] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5791] set_robust_list(0x5555571745e0, 24 [pid 5790] <... futex resumed>) = 0 [pid 5791] <... set_robust_list resumed>) = 0 [pid 5790] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5791] chdir("./39" [pid 5790] <... mmap resumed>) = 0x7fdb72913000 [pid 5791] <... chdir resumed>) = 0 [pid 5790] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5791] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5790] <... mprotect resumed>) = 0 [pid 5791] <... prctl resumed>) = 0 [pid 5790] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5791] setpgid(0, 0) = 0 [pid 5790] <... clone resumed>, parent_tid=[5792], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5792 [pid 5791] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5790] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5791] <... openat resumed>) = 3 [pid 5790] <... futex resumed>) = 0 [pid 5791] write(3, "1000", 4 [pid 5790] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5791] <... write resumed>) = 4 [pid 5791] close(3) = 0 [pid 5791] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5791] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5791] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5791] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5791] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5793], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5793 [pid 5791] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5791] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5793 attached [pid 5793] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5793] memfd_create("syzkaller", 0./strace-static-x86_64: Process 5792 attached [pid 5792] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5793] <... memfd_create resumed>) = 3 [pid 5792] memfd_create("syzkaller", 0) = 3 [pid 5792] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [pid 5793] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [pid 5077] <... umount2 resumed>) = 0 [pid 5076] <... umount2 resumed>) = 0 [pid 5076] umount2("./38/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] umount2("./39/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] lstat("./38/file0", [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] lstat("./39/file0", [pid 5076] umount2("./38/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] umount2("./39/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] openat(AT_FDCWD, "./38/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] openat(AT_FDCWD, "./39/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] <... openat resumed>) = 4 [pid 5076] getdents64(4, [pid 5077] fstat(4, [pid 5076] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] getdents64(4, [pid 5077] getdents64(4, [pid 5076] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5077] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5792] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5077] getdents64(4, [pid 5076] close(4 [pid 5074] <... umount2 resumed>) = 0 [pid 5793] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5077] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5076] <... close resumed>) = 0 [pid 5074] umount2("./38/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] close(4 [pid 5076] rmdir("./38/file0" [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... close resumed>) = 0 [pid 5076] <... rmdir resumed>) = 0 [pid 5077] rmdir("./39/file0" [pid 5074] lstat("./38/file0", [pid 5076] getdents64(3, [pid 5077] <... rmdir resumed>) = 0 [pid 5077] getdents64(3, [pid 5076] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5074] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5076] close(3 [pid 5074] umount2("./38/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] close(3 [pid 5076] <... close resumed>) = 0 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... close resumed>) = 0 [pid 5076] rmdir("./38" [pid 5077] rmdir("./39" [pid 5074] openat(AT_FDCWD, "./38/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] <... rmdir resumed>) = 0 [pid 5074] <... openat resumed>) = 4 [pid 5077] <... rmdir resumed>) = 0 [pid 5077] mkdir("./40", 0777 [pid 5076] mkdir("./39", 0777 [pid 5074] fstat(4, [pid 5077] <... mkdir resumed>) = 0 [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] <... mkdir resumed>) = 0 [pid 5077] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5076] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5074] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5076] <... openat resumed>) = 3 [pid 5074] getdents64(4, [pid 5077] <... openat resumed>) = 3 [pid 5077] ioctl(3, LOOP_CLR_FD [pid 5076] ioctl(3, LOOP_CLR_FD [pid 5074] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5077] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5074] close(4 [pid 5077] close(3 [pid 5076] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5074] <... close resumed>) = 0 [pid 5074] rmdir("./38/file0" [pid 5076] close(3 [pid 5077] <... close resumed>) = 0 [pid 5074] <... rmdir resumed>) = 0 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] <... close resumed>) = 0 [pid 5074] getdents64(3, [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5074] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5074] close(3 [pid 5076] <... clone resumed>, child_tidptr=0x5555571745d0) = 5795 [pid 5077] <... clone resumed>, child_tidptr=0x5555571745d0) = 5794 [pid 5074] <... close resumed>) = 0 [pid 5074] rmdir("./38") = 0 [pid 5074] mkdir("./39", 0777) = 0 [pid 5074] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5074] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5074] close(3) = 0 [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5796 ./strace-static-x86_64: Process 5795 attached [pid 5795] set_robust_list(0x5555571745e0, 24) = 0 [pid 5795] chdir("./39") = 0 ./strace-static-x86_64: Process 5794 attached [pid 5795] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5794] set_robust_list(0x5555571745e0, 24 [pid 5795] setpgid(0, 0./strace-static-x86_64: Process 5796 attached ) = 0 [pid 5794] <... set_robust_list resumed>) = 0 [pid 5796] set_robust_list(0x5555571745e0, 24 [pid 5795] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5794] chdir("./40" [pid 5796] <... set_robust_list resumed>) = 0 [pid 5795] <... openat resumed>) = 3 [pid 5794] <... chdir resumed>) = 0 [pid 5796] chdir("./39" [pid 5795] write(3, "1000", 4 [pid 5794] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5796] <... chdir resumed>) = 0 [pid 5795] <... write resumed>) = 4 [pid 5796] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5795] close(3 [pid 5794] <... prctl resumed>) = 0 [pid 5796] <... prctl resumed>) = 0 [pid 5795] <... close resumed>) = 0 [pid 5794] setpgid(0, 0 [pid 5796] setpgid(0, 0 [pid 5795] symlink("/dev/binderfs", "./binderfs" [pid 5794] <... setpgid resumed>) = 0 [pid 5796] <... setpgid resumed>) = 0 [pid 5794] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5796] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5795] <... symlink resumed>) = 0 [pid 5794] <... openat resumed>) = 3 [pid 5796] <... openat resumed>) = 3 [pid 5795] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5794] write(3, "1000", 4 [pid 5796] write(3, "1000", 4 [pid 5795] <... futex resumed>) = 0 [pid 5794] <... write resumed>) = 4 [pid 5796] <... write resumed>) = 4 [pid 5795] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5794] close(3 [pid 5796] close(3 [pid 5794] <... close resumed>) = 0 [pid 5795] <... mmap resumed>) = 0x7fdb72913000 [pid 5796] <... close resumed>) = 0 [pid 5795] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5794] symlink("/dev/binderfs", "./binderfs" [pid 5796] symlink("/dev/binderfs", "./binderfs" [pid 5795] <... mprotect resumed>) = 0 [pid 5794] <... symlink resumed>) = 0 [pid 5796] <... symlink resumed>) = 0 [pid 5795] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5794] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5796] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5794] <... futex resumed>) = 0 [pid 5796] <... futex resumed>) = 0 [pid 5794] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5796] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5795] <... clone resumed>, parent_tid=[5797], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5797 [pid 5794] <... mmap resumed>) = 0x7fdb72913000 [pid 5796] <... mmap resumed>) = 0x7fdb72913000 [pid 5795] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5794] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5796] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5795] <... futex resumed>) = 0 [pid 5794] <... mprotect resumed>) = 0 [pid 5796] <... mprotect resumed>) = 0 [pid 5795] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5794] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5075] <... umount2 resumed>) = 0 [pid 5796] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5075] umount2("./37/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5794] <... clone resumed>, parent_tid=[5798], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5798 [pid 5796] <... clone resumed>, parent_tid=[5799], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5799 [pid 5794] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5796] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5794] <... futex resumed>) = 0 [pid 5796] <... futex resumed>) = 0 [pid 5794] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5796] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5799 attached [pid 5799] set_robust_list(0x7fdb729339e0, 24 [pid 5075] lstat("./37/file0", ./strace-static-x86_64: Process 5798 attached ./strace-static-x86_64: Process 5797 attached [pid 5799] <... set_robust_list resumed>) = 0 [pid 5075] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5799] memfd_create("syzkaller", 0 [pid 5798] set_robust_list(0x7fdb729339e0, 24 [pid 5799] <... memfd_create resumed>) = 3 [pid 5798] <... set_robust_list resumed>) = 0 [pid 5797] set_robust_list(0x7fdb729339e0, 24 [pid 5075] umount2("./37/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5799] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5798] memfd_create("syzkaller", 0 [pid 5797] <... set_robust_list resumed>) = 0 [pid 5792] <... write resumed>) = 4194304 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5799] <... mmap resumed>) = 0x7fdb6a513000 [pid 5798] <... memfd_create resumed>) = 3 [pid 5797] memfd_create("syzkaller", 0 [pid 5075] openat(AT_FDCWD, "./37/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5798] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5797] <... memfd_create resumed>) = 3 [pid 5793] <... write resumed>) = 4194304 [pid 5792] munmap(0x7fdb6a513000, 4194304 [pid 5075] <... openat resumed>) = 4 [pid 5798] <... mmap resumed>) = 0x7fdb6a513000 [pid 5797] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5793] munmap(0x7fdb6a513000, 4194304 [pid 5792] <... munmap resumed>) = 0 [pid 5075] fstat(4, [pid 5797] <... mmap resumed>) = 0x7fdb6a513000 [pid 5793] <... munmap resumed>) = 0 [pid 5792] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5793] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5792] <... openat resumed>) = 4 [pid 5075] getdents64(4, [pid 5793] <... openat resumed>) = 4 [pid 5792] ioctl(4, LOOP_SET_FD, 3 [pid 5075] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5793] ioctl(4, LOOP_SET_FD, 3 [pid 5075] getdents64(4, [pid 5793] <... ioctl resumed>) = 0 [pid 5075] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5075] close(4) = 0 [pid 5793] close(3 [pid 5075] rmdir("./37/file0" [pid 5793] <... close resumed>) = 0 [pid 5075] <... rmdir resumed>) = 0 [pid 5793] mkdir("./file0", 0777 [pid 5075] getdents64(3, [pid 5793] <... mkdir resumed>) = 0 [pid 5075] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5793] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5075] close(3) = 0 [pid 5075] rmdir("./37") = 0 [pid 5075] mkdir("./38", 0777) = 0 [pid 5075] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5799] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5075] <... openat resumed>) = 3 [pid 5792] <... ioctl resumed>) = 0 [pid 5075] ioctl(3, LOOP_CLR_FD [pid 5792] close(3 [pid 5075] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5792] <... close resumed>) = 0 [pid 5075] close(3 [pid 5798] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5797] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5792] mkdir("./file0", 0777 [pid 5075] <... close resumed>) = 0 [pid 5792] <... mkdir resumed>) = 0 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5792] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5075] <... clone resumed>, child_tidptr=0x5555571745d0) = 5801 [ 113.087628][ T5792] loop5: detected capacity change from 0 to 8192 [ 113.095846][ T5793] loop4: detected capacity change from 0 to 8192 [ 113.118776][ T5793] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 ./strace-static-x86_64: Process 5801 attached [pid 5801] set_robust_list(0x5555571745e0, 24) = 0 [pid 5799] <... write resumed>) = 4194304 [pid 5801] chdir("./38") = 0 [pid 5801] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5801] setpgid(0, 0) = 0 [pid 5801] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5801] write(3, "1000", 4) = 4 [pid 5801] close(3) = 0 [pid 5801] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5801] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5801] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5801] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5801] clone(child_stack=0x7fdb729333f0, 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 5803 attached [pid 5799] munmap(0x7fdb6a513000, 4194304 [pid 5801] <... clone resumed>, parent_tid=[5803], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5803 [pid 5801] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5801] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5803] set_robust_list(0x7fdb729339e0, 24 [pid 5799] <... munmap resumed>) = 0 [pid 5803] <... set_robust_list resumed>) = 0 [pid 5803] memfd_create("syzkaller", 0 [pid 5799] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5803] <... memfd_create resumed>) = 3 [pid 5799] <... openat resumed>) = 4 [ 113.176387][ T5792] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 113.179876][ T5793] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 113.199640][ T5793] REISERFS (device loop4): using ordered data mode [ 113.209002][ T5793] reiserfs: using flush barriers [ 113.216234][ T5792] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [pid 5803] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5799] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5803] <... mmap resumed>) = 0x7fdb6a513000 [ 113.226545][ T5793] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 113.244603][ T5799] loop0: detected capacity change from 0 to 8192 [ 113.253502][ T5792] REISERFS (device loop5): using ordered data mode [ 113.260165][ T5792] reiserfs: using flush barriers [ 113.267922][ T5793] REISERFS (device loop4): checking transaction log (loop4) [pid 5803] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5799] close(3) = 0 [pid 5799] mkdir("./file0", 0777) = 0 [pid 5799] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5798] <... write resumed>) = 4194304 [ 113.273907][ T5792] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5797] <... write resumed>) = 4194304 [pid 5797] munmap(0x7fdb6a513000, 4194304) = 0 [pid 5798] munmap(0x7fdb6a513000, 4194304 [pid 5797] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5803] <... write resumed>) = 4194304 [pid 5798] <... munmap resumed>) = 0 [pid 5798] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5797] <... openat resumed>) = 4 [pid 5798] <... openat resumed>) = 4 [pid 5798] ioctl(4, LOOP_SET_FD, 3 [pid 5803] munmap(0x7fdb6a513000, 4194304 [pid 5797] ioctl(4, LOOP_SET_FD, 3 [pid 5798] <... ioctl resumed>) = 0 [pid 5798] close(3) = 0 [pid 5798] mkdir("./file0", 0777) = 0 [pid 5798] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5803] <... munmap resumed>) = 0 [ 113.325806][ T5799] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 113.348988][ T5792] REISERFS (device loop5): checking transaction log (loop5) [ 113.353617][ T5798] loop3: detected capacity change from 0 to 8192 [ 113.359434][ T5799] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [pid 5797] <... ioctl resumed>) = 0 [pid 5803] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5803] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5797] close(3 [pid 5803] close(3 [pid 5797] <... close resumed>) = 0 [pid 5803] <... close resumed>) = 0 [ 113.373889][ T5797] loop2: detected capacity change from 0 to 8192 [ 113.383573][ T5799] REISERFS (device loop0): using ordered data mode [ 113.383577][ T5803] loop1: detected capacity change from 0 to 8192 [ 113.398960][ T5799] reiserfs: using flush barriers [ 113.408151][ T5799] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5797] mkdir("./file0", 0777 [pid 5803] mkdir("./file0", 0777 [pid 5797] <... mkdir resumed>) = 0 [pid 5803] <... mkdir resumed>) = 0 [pid 5797] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC, "" [ 113.409771][ T5798] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 113.440952][ T5799] REISERFS (device loop0): checking transaction log (loop0) [ 113.483463][ T5798] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 113.484928][ T5797] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 113.492992][ T5798] REISERFS (device loop3): using ordered data mode [ 113.513604][ T5797] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 113.523552][ T5797] REISERFS (device loop2): using ordered data mode [ 113.525275][ T5803] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 113.530396][ T5797] reiserfs: using flush barriers [ 113.543955][ T5798] reiserfs: using flush barriers [ 113.554758][ T5797] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 113.569294][ T5793] REISERFS (device loop4): Using r5 hash to sort names [ 113.572615][ T5797] REISERFS (device loop2): checking transaction log (loop2) [ 113.614625][ T5792] REISERFS (device loop5): Using r5 hash to sort names [ 113.615458][ T5793] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 113.624366][ T5792] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 113.635407][ T5798] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 113.643767][ T5803] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [pid 5803] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5792] <... mount resumed>) = 0 [pid 5792] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5792] chdir("./file0") = 0 [pid 5792] ioctl(4, LOOP_CLR_FD) = 0 [pid 5792] close(4) = 0 [pid 5792] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5790] <... futex resumed>) = 0 [pid 5790] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5790] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5792] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 5792] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5790] <... futex resumed>) = 0 [pid 5790] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5790] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5792] ioctl(4, FS_IOC_GETVERSION, 0x20000080) = 0 [pid 5792] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5790] <... futex resumed>) = 0 [pid 5792] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5790] exit_group(0 [pid 5792] <... futex resumed>) = ? [pid 5790] <... exit_group resumed>) = ? [pid 5792] +++ exited with 0 +++ [pid 5790] +++ exited with 0 +++ [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5790, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} --- [pid 5079] umount2("./38", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./38", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5079] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5079] umount2("./38/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] lstat("./38/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] unlink("./38/binderfs" [pid 5793] <... mount resumed>) = 0 [pid 5079] <... unlink resumed>) = 0 [pid 5079] umount2("./38/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5793] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5793] chdir("./file0") = 0 [pid 5793] ioctl(4, LOOP_CLR_FD) = 0 [pid 5793] close(4) = 0 [pid 5793] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5791] <... futex resumed>) = 0 [pid 5793] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5791] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5793] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5791] <... futex resumed>) = 0 [pid 5793] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5791] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5793] <... open resumed>) = 4 [pid 5793] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5791] <... futex resumed>) = 0 [pid 5793] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5791] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5793] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5791] <... futex resumed>) = 0 [pid 5793] ioctl(4, FS_IOC_GETVERSION [pid 5791] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5793] <... ioctl resumed>, 0x20000080) = 0 [pid 5793] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5791] <... futex resumed>) = 0 [pid 5793] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5791] exit_group(0 [pid 5793] <... futex resumed>) = ? [pid 5791] <... exit_group resumed>) = ? [pid 5793] +++ exited with 0 +++ [pid 5791] +++ exited with 0 +++ [pid 5078] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5791, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} --- [ 113.708088][ T5799] REISERFS (device loop0): Using r5 hash to sort names [ 113.747265][ T5799] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5078] umount2("./39", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5078] openat(AT_FDCWD, "./39", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5078] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5078] umount2("./39/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5078] lstat("./39/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5078] unlink("./39/binderfs") = 0 [pid 5078] umount2("./39/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5799] <... mount resumed>) = 0 [ 113.757100][ T5803] REISERFS (device loop1): using ordered data mode [ 113.757683][ T5798] REISERFS (device loop3): checking transaction log (loop3) [ 113.784298][ T5803] reiserfs: using flush barriers [ 113.795930][ T5797] REISERFS (device loop2): Using r5 hash to sort names [pid 5799] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5799] chdir("./file0") = 0 [pid 5799] ioctl(4, LOOP_CLR_FD) = 0 [pid 5799] close(4) = 0 [pid 5799] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5796] <... futex resumed>) = 0 [pid 5796] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5796] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5799] <... futex resumed>) = 1 [pid 5799] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 5799] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5796] <... futex resumed>) = 0 [pid 5796] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5796] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5799] <... futex resumed>) = 1 [pid 5799] ioctl(4, FS_IOC_GETVERSION, 0x20000080) = 0 [pid 5799] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5796] <... futex resumed>) = 0 [pid 5796] exit_group(0) = ? [pid 5799] <... futex resumed>) = ? [pid 5799] +++ exited with 0 +++ [pid 5796] +++ exited with 0 +++ [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5796, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=20 /* 0.20 s */} --- [pid 5074] umount2("./39", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] openat(AT_FDCWD, "./39", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5074] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5074] umount2("./39/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5797] <... mount resumed>) = 0 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5797] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5074] lstat("./39/binderfs", [pid 5797] chdir("./file0" [pid 5074] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5797] <... chdir resumed>) = 0 [pid 5797] ioctl(4, LOOP_CLR_FD [pid 5074] unlink("./39/binderfs" [pid 5797] <... ioctl resumed>) = 0 [pid 5074] <... unlink resumed>) = 0 [pid 5074] umount2("./39/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5797] close(4) = 0 [pid 5797] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5795] <... futex resumed>) = 0 [pid 5795] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5797] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5795] <... futex resumed>) = 0 [ 113.807094][ T5803] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 113.844123][ T5797] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 5795] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5797] <... open resumed>) = 4 [pid 5797] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5795] <... futex resumed>) = 0 [pid 5797] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5795] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5797] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5797] ioctl(4, FS_IOC_GETVERSION [pid 5795] <... futex resumed>) = 0 [pid 5795] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5797] <... ioctl resumed>, 0x20000080) = 0 [pid 5797] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5795] <... futex resumed>) = 0 [pid 5797] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5795] exit_group(0 [pid 5797] <... futex resumed>) = ? [pid 5795] <... exit_group resumed>) = ? [pid 5797] +++ exited with 0 +++ [pid 5795] +++ exited with 0 +++ [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5795, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=15 /* 0.15 s */} --- [pid 5076] umount2("./39", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5076] openat(AT_FDCWD, "./39", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5076] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5076] umount2("./39/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5076] lstat("./39/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] unlink("./39/binderfs") = 0 [pid 5076] umount2("./39/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... umount2 resumed>) = 0 [pid 5074] <... umount2 resumed>) = 0 [pid 5079] umount2("./38/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] umount2("./39/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] lstat("./39/file0", [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] lstat("./38/file0", [pid 5074] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] umount2("./39/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] umount2("./38/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] openat(AT_FDCWD, "./39/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 113.882617][ T5803] REISERFS (device loop1): checking transaction log (loop1) [pid 5079] openat(AT_FDCWD, "./38/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5074] <... openat resumed>) = 4 [pid 5079] <... openat resumed>) = 4 [pid 5074] fstat(4, [pid 5079] fstat(4, [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] getdents64(4, [pid 5079] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5074] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5079] getdents64(4, [pid 5074] getdents64(4, [pid 5079] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5074] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5079] close(4 [pid 5074] close(4 [pid 5079] <... close resumed>) = 0 [pid 5079] rmdir("./38/file0" [pid 5074] <... close resumed>) = 0 [pid 5079] <... rmdir resumed>) = 0 [pid 5074] rmdir("./39/file0" [pid 5079] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5074] <... rmdir resumed>) = 0 [pid 5079] close(3 [pid 5074] getdents64(3, [pid 5079] <... close resumed>) = 0 [pid 5079] rmdir("./38" [pid 5074] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5079] <... rmdir resumed>) = 0 [pid 5074] close(3) = 0 [pid 5074] rmdir("./39") = 0 [pid 5079] mkdir("./39", 0777 [pid 5074] mkdir("./40", 0777 [pid 5079] <... mkdir resumed>) = 0 [pid 5074] <... mkdir resumed>) = 0 [pid 5079] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5074] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5079] <... openat resumed>) = 3 [pid 5079] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5079] close(3) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5808 ./strace-static-x86_64: Process 5808 attached [pid 5808] set_robust_list(0x5555571745e0, 24 [pid 5076] <... umount2 resumed>) = 0 [pid 5074] <... openat resumed>) = 3 [pid 5808] <... set_robust_list resumed>) = 0 [pid 5076] umount2("./39/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] ioctl(3, LOOP_CLR_FD [pid 5808] chdir("./39" [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5808] <... chdir resumed>) = 0 [pid 5076] lstat("./39/file0", [pid 5074] close(3 [pid 5808] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5076] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] <... close resumed>) = 0 [pid 5808] <... prctl resumed>) = 0 [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] umount2("./39/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5808] setpgid(0, 0) = 0 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5809 attached [pid 5808] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5076] openat(AT_FDCWD, "./39/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5074] <... clone resumed>, child_tidptr=0x5555571745d0) = 5809 [pid 5809] set_robust_list(0x5555571745e0, 24 [pid 5808] <... openat resumed>) = 3 [pid 5808] write(3, "1000", 4 [pid 5076] <... openat resumed>) = 4 [pid 5809] <... set_robust_list resumed>) = 0 [pid 5808] <... write resumed>) = 4 [pid 5076] fstat(4, [pid 5808] close(3 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5808] <... close resumed>) = 0 [pid 5076] getdents64(4, [pid 5809] chdir("./40" [pid 5808] symlink("/dev/binderfs", "./binderfs" [pid 5076] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5078] <... umount2 resumed>) = 0 [pid 5809] <... chdir resumed>) = 0 [pid 5076] getdents64(4, [pid 5808] <... symlink resumed>) = 0 [pid 5076] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5809] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5076] close(4 [pid 5808] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5809] <... prctl resumed>) = 0 [pid 5808] <... futex resumed>) = 0 [pid 5076] <... close resumed>) = 0 [pid 5809] setpgid(0, 0 [pid 5808] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5076] rmdir("./39/file0" [pid 5809] <... setpgid resumed>) = 0 [pid 5808] <... mmap resumed>) = 0x7fdb72913000 [pid 5078] umount2("./39/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... rmdir resumed>) = 0 [pid 5809] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5808] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5076] getdents64(3, [pid 5809] <... openat resumed>) = 3 [pid 5808] <... mprotect resumed>) = 0 [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5809] write(3, "1000", 4) = 4 [pid 5808] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5078] lstat("./39/file0", [pid 5076] close(3 [pid 5809] close(3) = 0 [pid 5078] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] <... close resumed>) = 0 [pid 5809] symlink("/dev/binderfs", "./binderfs" [pid 5808] <... clone resumed>, parent_tid=[5810], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5810 [pid 5076] rmdir("./39" [pid 5809] <... symlink resumed>) = 0 [pid 5808] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] umount2("./39/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... rmdir resumed>) = 0 ./strace-static-x86_64: Process 5810 attached [pid 5809] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5808] <... futex resumed>) = 0 [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] mkdir("./40", 0777 [pid 5810] set_robust_list(0x7fdb729339e0, 24 [pid 5809] <... futex resumed>) = 0 [pid 5808] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5803] <... mount resumed>) = 0 [pid 5078] openat(AT_FDCWD, "./39/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5810] <... set_robust_list resumed>) = 0 [pid 5809] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5803] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5078] <... openat resumed>) = 4 [pid 5076] <... mkdir resumed>) = 0 [pid 5810] memfd_create("syzkaller", 0 [pid 5809] <... mmap resumed>) = 0x7fdb72913000 [pid 5803] <... openat resumed>) = 3 [pid 5078] fstat(4, [pid 5076] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5810] <... memfd_create resumed>) = 3 [pid 5809] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5803] chdir("./file0" [pid 5078] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5810] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5809] <... mprotect resumed>) = 0 [pid 5803] <... chdir resumed>) = 0 [pid 5078] getdents64(4, [pid 5810] <... mmap resumed>) = 0x7fdb6a513000 [pid 5809] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5803] ioctl(4, LOOP_CLR_FD [pid 5078] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5803] <... ioctl resumed>) = 0 [pid 5078] getdents64(4, [ 114.065220][ T5803] REISERFS (device loop1): Using r5 hash to sort names [ 114.073166][ T5803] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [pid 5809] <... clone resumed>, parent_tid=[5811], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5811 [pid 5803] close(4 [pid 5078] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 5811 attached [pid 5809] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5803] <... close resumed>) = 0 [pid 5078] close(4) = 0 [pid 5811] set_robust_list(0x7fdb729339e0, 24 [pid 5809] <... futex resumed>) = 0 [pid 5803] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] rmdir("./39/file0" [pid 5811] <... set_robust_list resumed>) = 0 [pid 5809] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5803] <... futex resumed>) = 1 [pid 5801] <... futex resumed>) = 0 [pid 5078] <... rmdir resumed>) = 0 [pid 5811] memfd_create("syzkaller", 0 [pid 5803] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5801] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] getdents64(3, [pid 5811] <... memfd_create resumed>) = 3 [pid 5803] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5801] <... futex resumed>) = 0 [pid 5078] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5811] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5803] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5801] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5078] close(3 [pid 5076] <... openat resumed>) = 3 [pid 5811] <... mmap resumed>) = 0x7fdb6a513000 [pid 5078] <... close resumed>) = 0 [pid 5078] rmdir("./39" [pid 5803] <... open resumed>) = 4 [pid 5078] <... rmdir resumed>) = 0 [pid 5076] ioctl(3, LOOP_CLR_FD [pid 5078] mkdir("./40", 0777) = 0 [pid 5803] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5076] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5803] <... futex resumed>) = 1 [pid 5801] <... futex resumed>) = 0 [pid 5078] <... openat resumed>) = 3 [pid 5076] close(3 [pid 5803] ioctl(4, FS_IOC_GETVERSION [pid 5801] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] ioctl(3, LOOP_CLR_FD [pid 5803] <... ioctl resumed>, 0x20000080) = 0 [pid 5801] <... futex resumed>) = 0 [pid 5078] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5076] <... close resumed>) = 0 [pid 5803] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5801] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5078] close(3 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5803] <... futex resumed>) = 0 [pid 5801] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5078] <... close resumed>) = 0 [pid 5078] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5803] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5801] exit_group(0 [pid 5803] <... futex resumed>) = ? [pid 5801] <... exit_group resumed>) = ? [pid 5078] <... clone resumed>, child_tidptr=0x5555571745d0) = 5813 [pid 5803] +++ exited with 0 +++ ./strace-static-x86_64: Process 5813 attached [pid 5813] set_robust_list(0x5555571745e0, 24 [pid 5801] +++ exited with 0 +++ [pid 5076] <... clone resumed>, child_tidptr=0x5555571745d0) = 5812 [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5801, si_uid=0, si_status=0, si_utime=0, si_stime=21 /* 0.21 s */} --- [pid 5075] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5813] <... set_robust_list resumed>) = 0 [ 114.139343][ T5798] REISERFS (device loop3): Using r5 hash to sort names ./strace-static-x86_64: Process 5812 attached [pid 5813] chdir("./40" [pid 5075] umount2("./38", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5813] <... chdir resumed>) = 0 [pid 5812] set_robust_list(0x5555571745e0, 24 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5813] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5812] <... set_robust_list resumed>) = 0 [pid 5813] <... prctl resumed>) = 0 [pid 5812] chdir("./40" [pid 5075] openat(AT_FDCWD, "./38", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5812] <... chdir resumed>) = 0 [pid 5075] <... openat resumed>) = 3 [pid 5812] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5075] fstat(3, [pid 5813] setpgid(0, 0 [pid 5812] <... prctl resumed>) = 0 [pid 5813] <... setpgid resumed>) = 0 [pid 5812] setpgid(0, 0 [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5813] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5812] <... setpgid resumed>) = 0 [pid 5813] <... openat resumed>) = 3 [pid 5812] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5075] getdents64(3, [pid 5813] write(3, "1000", 4 [pid 5812] <... openat resumed>) = 3 [pid 5813] <... write resumed>) = 4 [pid 5075] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5812] write(3, "1000", 4 [pid 5813] close(3 [pid 5075] umount2("./38/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5813] <... close resumed>) = 0 [pid 5812] <... write resumed>) = 4 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5813] symlink("/dev/binderfs", "./binderfs" [pid 5812] close(3 [pid 5075] lstat("./38/binderfs", [pid 5813] <... symlink resumed>) = 0 [pid 5812] <... close resumed>) = 0 [pid 5813] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5812] symlink("/dev/binderfs", "./binderfs" [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5813] <... futex resumed>) = 0 [pid 5813] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5812] <... symlink resumed>) = 0 [pid 5075] unlink("./38/binderfs" [pid 5813] <... mmap resumed>) = 0x7fdb72913000 [pid 5812] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5813] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5812] <... futex resumed>) = 0 [pid 5075] <... unlink resumed>) = 0 [pid 5813] <... mprotect resumed>) = 0 [pid 5812] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5810] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5813] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5075] umount2("./38/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5812] <... mmap resumed>) = 0x7fdb72913000 [pid 5813] <... clone resumed>, parent_tid=[5814], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5814 [pid 5813] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5812] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5798] <... mount resumed>) = 0 [pid 5813] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5812] <... mprotect resumed>) = 0 [pid 5798] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY./strace-static-x86_64: Process 5814 attached [pid 5812] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5798] <... openat resumed>) = 3 [pid 5814] set_robust_list(0x7fdb729339e0, 24 [ 114.180973][ T5798] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [pid 5798] chdir("./file0" [pid 5814] <... set_robust_list resumed>) = 0 [pid 5812] <... clone resumed>, parent_tid=[5815], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5815 [pid 5798] <... chdir resumed>) = 0 [pid 5812] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 5815 attached ) = 0 [pid 5814] memfd_create("syzkaller", 0 [pid 5811] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5798] ioctl(4, LOOP_CLR_FD [pid 5814] <... memfd_create resumed>) = 3 [pid 5798] <... ioctl resumed>) = 0 [pid 5814] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5798] close(4 [pid 5815] set_robust_list(0x7fdb729339e0, 24 [pid 5814] <... mmap resumed>) = 0x7fdb6a513000 [pid 5812] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5798] <... close resumed>) = 0 [pid 5815] <... set_robust_list resumed>) = 0 [pid 5798] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5794] <... futex resumed>) = 0 [pid 5815] memfd_create("syzkaller", 0 [pid 5798] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5794] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5815] <... memfd_create resumed>) = 3 [pid 5798] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5794] <... futex resumed>) = 0 [pid 5815] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5798] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5794] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5815] <... mmap resumed>) = 0x7fdb6a513000 [pid 5798] <... open resumed>) = 4 [pid 5798] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5794] <... futex resumed>) = 0 [pid 5798] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5794] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5798] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5794] <... futex resumed>) = 0 [pid 5798] ioctl(4, FS_IOC_GETVERSION [pid 5794] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5798] <... ioctl resumed>, 0x20000080) = 0 [pid 5798] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5794] <... futex resumed>) = 0 [pid 5798] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5794] exit_group(0 [pid 5798] <... futex resumed>) = ? [pid 5794] <... exit_group resumed>) = ? [pid 5798] +++ exited with 0 +++ [pid 5794] +++ exited with 0 +++ [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5794, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=21 /* 0.21 s */} --- [pid 5077] umount2("./40", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] openat(AT_FDCWD, "./40", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5077] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5077] umount2("./40/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] lstat("./40/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] unlink("./40/binderfs") = 0 [pid 5077] umount2("./40/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5814] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5815] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5810] <... write resumed>) = 4194304 [pid 5810] munmap(0x7fdb6a513000, 4194304) = 0 [pid 5810] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 5810] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5810] close(3) = 0 [pid 5810] mkdir("./file0", 0777) = 0 [pid 5811] <... write resumed>) = 4194304 [pid 5811] munmap(0x7fdb6a513000, 4194304) = 0 [pid 5811] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5075] <... umount2 resumed>) = 0 [pid 5811] <... openat resumed>) = 4 [pid 5810] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5811] ioctl(4, LOOP_SET_FD, 3 [ 114.428046][ T5810] loop5: detected capacity change from 0 to 8192 [pid 5075] umount2("./38/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5811] <... ioctl resumed>) = 0 [pid 5075] lstat("./38/file0", [pid 5811] close(3) = 0 [pid 5075] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5811] mkdir("./file0", 0777 [pid 5075] umount2("./38/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5811] <... mkdir resumed>) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5811] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5075] openat(AT_FDCWD, "./38/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5075] fstat(4, [pid 5077] <... umount2 resumed>) = 0 [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5814] <... write resumed>) = 4194304 [pid 5077] umount2("./40/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] getdents64(4, [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5077] lstat("./40/file0", [pid 5075] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5075] close(4 [pid 5077] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] <... close resumed>) = 0 [pid 5077] umount2("./40/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] rmdir("./38/file0" [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5814] munmap(0x7fdb6a513000, 4194304 [pid 5077] openat(AT_FDCWD, "./40/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] <... rmdir resumed>) = 0 [pid 5075] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5077] <... openat resumed>) = 4 [pid 5075] close(3 [pid 5077] fstat(4, [pid 5075] <... close resumed>) = 0 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] rmdir("./38" [pid 5077] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5075] <... rmdir resumed>) = 0 [pid 5814] <... munmap resumed>) = 0 [pid 5077] getdents64(4, [pid 5075] mkdir("./39", 0777 [pid 5077] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5814] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5077] close(4 [pid 5075] <... mkdir resumed>) = 0 [pid 5814] <... openat resumed>) = 4 [pid 5077] <... close resumed>) = 0 [pid 5075] openat(AT_FDCWD, "/dev/loop1", O_RDWR [ 114.472502][ T5811] loop0: detected capacity change from 0 to 8192 [ 114.473897][ T5810] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 114.502649][ T5811] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5814] ioctl(4, LOOP_SET_FD, 3 [pid 5077] rmdir("./40/file0" [pid 5075] <... openat resumed>) = 3 [pid 5815] <... write resumed>) = 4194304 [pid 5814] <... ioctl resumed>) = 0 [pid 5077] <... rmdir resumed>) = 0 [pid 5075] ioctl(3, LOOP_CLR_FD [pid 5077] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5077] close(3) = 0 [pid 5077] rmdir("./40") = 0 [pid 5077] mkdir("./41", 0777) = 0 [pid 5815] munmap(0x7fdb6a513000, 4194304 [pid 5814] close(3 [pid 5077] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5075] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5815] <... munmap resumed>) = 0 [pid 5814] <... close resumed>) = 0 [pid 5077] <... openat resumed>) = 3 [ 114.530164][ T5814] loop4: detected capacity change from 0 to 8192 [ 114.531711][ T5810] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 114.541023][ T5811] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 114.556486][ T5811] REISERFS (device loop0): using ordered data mode [ 114.563475][ T5811] reiserfs: using flush barriers [ 114.569638][ T5810] REISERFS (device loop5): using ordered data mode [pid 5075] close(3 [pid 5815] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5814] mkdir("./file0", 0777 [pid 5077] ioctl(3, LOOP_CLR_FD [pid 5075] <... close resumed>) = 0 [pid 5815] <... openat resumed>) = 4 [pid 5814] <... mkdir resumed>) = 0 [pid 5077] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5815] ioctl(4, LOOP_SET_FD, 3 [pid 5814] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5077] close(3./strace-static-x86_64: Process 5818 attached [pid 5815] <... ioctl resumed>) = 0 [pid 5077] <... close resumed>) = 0 [pid 5075] <... clone resumed>, child_tidptr=0x5555571745d0) = 5818 [pid 5815] close(3 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5815] <... close resumed>) = 0 [pid 5815] mkdir("./file0", 0777 [pid 5077] <... clone resumed>, child_tidptr=0x5555571745d0) = 5820 [pid 5815] <... mkdir resumed>) = 0 [ 114.574113][ T5811] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 114.576409][ T5810] reiserfs: using flush barriers [ 114.599170][ T5815] loop2: detected capacity change from 0 to 8192 [ 114.600660][ T5811] REISERFS (device loop0): checking transaction log (loop0) [ 114.613441][ T5810] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5815] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5818] set_robust_list(0x5555571745e0, 24./strace-static-x86_64: Process 5820 attached [pid 5820] set_robust_list(0x5555571745e0, 24) = 0 [ 114.632015][ T5814] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 114.635578][ T5810] REISERFS (device loop5): checking transaction log (loop5) [ 114.653944][ T5815] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 114.662118][ T5814] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [pid 5820] chdir("./41" [pid 5818] <... set_robust_list resumed>) = 0 [pid 5818] chdir("./39") = 0 [pid 5818] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5818] setpgid(0, 0) = 0 [pid 5818] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5818] write(3, "1000", 4) = 4 [pid 5818] close(3) = 0 [pid 5818] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5818] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5818] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5818] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5818] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5822], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5822 [pid 5818] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5818] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5820] <... chdir resumed>) = 0 [pid 5820] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5820] setpgid(0, 0) = 0 [pid 5820] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5820] write(3, "1000", 4) = 4 [pid 5820] close(3) = 0 [pid 5820] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5820] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5820] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5820] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [ 114.667311][ T5815] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 114.686373][ T5815] REISERFS (device loop2): using ordered data mode [ 114.692997][ T5815] reiserfs: using flush barriers [ 114.699328][ T5814] REISERFS (device loop4): using ordered data mode [ 114.706156][ T5814] reiserfs: using flush barriers [ 114.712240][ T5815] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5820] clone(child_stack=0x7fdb729333f0, 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 5822 attached ./strace-static-x86_64: Process 5823 attached [pid 5823] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5823] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5822] set_robust_list(0x7fdb729339e0, 24 [pid 5820] <... clone resumed>, parent_tid=[5823], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5823 [pid 5822] <... set_robust_list resumed>) = 0 [pid 5820] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5822] memfd_create("syzkaller", 0 [pid 5820] <... futex resumed>) = 1 [pid 5823] <... futex resumed>) = 0 [pid 5820] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5823] memfd_create("syzkaller", 0) = 3 [pid 5822] <... memfd_create resumed>) = 3 [pid 5823] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5822] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5823] <... mmap resumed>) = 0x7fdb6a513000 [pid 5822] <... mmap resumed>) = 0x7fdb6a513000 [ 114.740158][ T5814] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 114.746657][ T5815] REISERFS (device loop2): checking transaction log (loop2) [ 114.759989][ T5814] REISERFS (device loop4): checking transaction log (loop4) [ 114.849755][ T5811] REISERFS (device loop0): Using r5 hash to sort names [ 114.886213][ T5811] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5823] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5822] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5811] <... mount resumed>) = 0 [pid 5811] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5811] chdir("./file0") = 0 [pid 5811] ioctl(4, LOOP_CLR_FD) = 0 [pid 5811] close(4) = 0 [pid 5811] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5809] <... futex resumed>) = 0 [pid 5811] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5809] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5811] <... open resumed>) = 4 [pid 5809] <... futex resumed>) = 0 [pid 5811] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5809] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5811] <... futex resumed>) = 0 [pid 5809] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5811] ioctl(4, FS_IOC_GETVERSION [pid 5809] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5811] <... ioctl resumed>, 0x20000080) = 0 [pid 5809] <... futex resumed>) = 0 [pid 5811] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5809] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5811] <... futex resumed>) = 0 [pid 5809] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5811] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5809] exit_group(0 [pid 5811] <... futex resumed>) = ? [pid 5809] <... exit_group resumed>) = ? [pid 5811] +++ exited with 0 +++ [pid 5809] +++ exited with 0 +++ [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5809, si_uid=0, si_status=0, si_utime=0, si_stime=22 /* 0.22 s */} --- [pid 5074] umount2("./40", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] openat(AT_FDCWD, "./40", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5074] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5074] umount2("./40/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] lstat("./40/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5074] unlink("./40/binderfs") = 0 [pid 5074] umount2("./40/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5810] <... mount resumed>) = 0 [pid 5810] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5810] chdir("./file0") = 0 [pid 5810] ioctl(4, LOOP_CLR_FD) = 0 [pid 5810] close(4) = 0 [pid 5810] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5808] <... futex resumed>) = 0 [pid 5808] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5808] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5810] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 5810] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5808] <... futex resumed>) = 0 [ 114.961999][ T5814] REISERFS (device loop4): Using r5 hash to sort names [ 114.983546][ T5810] REISERFS (device loop5): Using r5 hash to sort names [ 114.992955][ T5810] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 114.994324][ T5814] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [pid 5810] <... futex resumed>) = 1 [pid 5810] ioctl(4, FS_IOC_GETVERSION [pid 5808] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5810] <... ioctl resumed>, 0x20000080) = 0 [pid 5808] <... futex resumed>) = 0 [pid 5810] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5808] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5810] <... futex resumed>) = 0 [pid 5808] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5810] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5808] exit_group(0) = ? [pid 5810] <... futex resumed>) = ? [pid 5810] +++ exited with 0 +++ [pid 5808] +++ exited with 0 +++ [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5808, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=25 /* 0.25 s */} --- [pid 5079] umount2("./39", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./39", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5079] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5079] umount2("./39/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] lstat("./39/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] unlink("./39/binderfs") = 0 [pid 5079] umount2("./39/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5814] <... mount resumed>) = 0 [pid 5814] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5814] chdir("./file0") = 0 [pid 5814] ioctl(4, LOOP_CLR_FD) = 0 [pid 5823] <... write resumed>) = 4194304 [pid 5814] close(4) = 0 [pid 5814] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5813] <... futex resumed>) = 0 [pid 5813] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5813] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5814] <... futex resumed>) = 1 [pid 5814] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 5814] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5813] <... futex resumed>) = 0 [pid 5813] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5813] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5814] <... futex resumed>) = 1 [pid 5814] ioctl(4, FS_IOC_GETVERSION, 0x20000080) = 0 [pid 5814] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5813] <... futex resumed>) = 0 [pid 5813] exit_group(0) = ? [pid 5814] <... futex resumed>) = ? [pid 5814] +++ exited with 0 +++ [pid 5813] +++ exited with 0 +++ [pid 5078] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5813, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=20 /* 0.20 s */} --- [pid 5078] umount2("./40", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5823] munmap(0x7fdb6a513000, 4194304 [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5078] openat(AT_FDCWD, "./40", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5823] <... munmap resumed>) = 0 [pid 5078] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] getdents64(3, [pid 5823] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5078] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5823] <... openat resumed>) = 4 [pid 5078] umount2("./40/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5823] ioctl(4, LOOP_SET_FD, 3 [pid 5078] lstat("./40/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5078] unlink("./40/binderfs") = 0 [pid 5078] umount2("./40/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5822] <... write resumed>) = 4194304 [pid 5823] <... ioctl resumed>) = 0 [pid 5823] close(3) = 0 [pid 5823] mkdir("./file0", 0777 [pid 5822] munmap(0x7fdb6a513000, 4194304 [pid 5815] <... mount resumed>) = 0 [pid 5822] <... munmap resumed>) = 0 [pid 5815] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5822] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5815] <... openat resumed>) = 3 [pid 5822] <... openat resumed>) = 4 [pid 5815] chdir("./file0" [pid 5822] ioctl(4, LOOP_SET_FD, 3 [pid 5815] <... chdir resumed>) = 0 [ 115.091510][ T5815] REISERFS (device loop2): Using r5 hash to sort names [ 115.117601][ T5823] loop3: detected capacity change from 0 to 8192 [ 115.127759][ T5815] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 5823] <... mkdir resumed>) = 0 [pid 5823] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5815] ioctl(4, LOOP_CLR_FD) = 0 [pid 5822] <... ioctl resumed>) = 0 [pid 5815] close(4) = 0 [pid 5815] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5812] <... futex resumed>) = 0 [pid 5822] close(3 [pid 5815] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5812] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5815] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5812] <... futex resumed>) = 0 [pid 5815] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5812] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5822] <... close resumed>) = 0 [pid 5815] <... open resumed>) = 4 [pid 5074] <... umount2 resumed>) = 0 [pid 5822] mkdir("./file0", 0777 [pid 5815] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5074] umount2("./40/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5822] <... mkdir resumed>) = 0 [pid 5815] <... futex resumed>) = 1 [pid 5815] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5812] <... futex resumed>) = 0 [pid 5812] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5812] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5822] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5815] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5074] lstat("./40/file0", [pid 5815] ioctl(4, FS_IOC_GETVERSION [pid 5074] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5815] <... ioctl resumed>, 0x20000080) = 0 [pid 5074] umount2("./40/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5815] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5812] <... futex resumed>) = 0 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5812] exit_group(0) = ? [ 115.165223][ T5822] loop1: detected capacity change from 0 to 8192 [ 115.190345][ T5823] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5074] openat(AT_FDCWD, "./40/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5815] +++ exited with 0 +++ [pid 5812] +++ exited with 0 +++ [pid 5074] <... openat resumed>) = 4 [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5812, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=19 /* 0.19 s */} --- [pid 5074] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] umount2("./40", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] openat(AT_FDCWD, "./40", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5074] getdents64(4, [pid 5076] <... openat resumed>) = 3 [pid 5074] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5076] fstat(3, [pid 5074] close(4 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] <... close resumed>) = 0 [pid 5074] rmdir("./40/file0" [pid 5076] getdents64(3, [pid 5074] <... rmdir resumed>) = 0 [pid 5076] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5074] getdents64(3, [pid 5076] umount2("./40/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5076] lstat("./40/binderfs", [pid 5074] close(3 [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5074] <... close resumed>) = 0 [pid 5076] unlink("./40/binderfs" [pid 5074] rmdir("./40" [pid 5076] <... unlink resumed>) = 0 [pid 5074] <... rmdir resumed>) = 0 [pid 5076] umount2("./40/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] mkdir("./41", 0777) = 0 [pid 5074] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5074] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5074] close(3) = 0 [ 115.226807][ T5822] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 115.238582][ T5823] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 115.265648][ T5823] REISERFS (device loop3): using ordered data mode [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5826 ./strace-static-x86_64: Process 5826 attached [pid 5826] set_robust_list(0x5555571745e0, 24) = 0 [pid 5826] chdir("./41") = 0 [pid 5826] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5826] setpgid(0, 0) = 0 [pid 5826] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5826] write(3, "1000", 4) = 4 [pid 5826] close(3) = 0 [pid 5826] symlink("/dev/binderfs", "./binderfs" [pid 5079] <... umount2 resumed>) = 0 [pid 5826] <... symlink resumed>) = 0 [pid 5079] umount2("./39/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] lstat("./39/file0", [pid 5826] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] umount2("./39/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./39/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5826] <... futex resumed>) = 0 [pid 5826] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5079] <... openat resumed>) = 4 [pid 5079] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5826] <... mmap resumed>) = 0x7fdb72913000 [pid 5826] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5079] getdents64(4, [pid 5826] <... mprotect resumed>) = 0 [pid 5079] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5079] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5079] close(4 [pid 5826] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5079] <... close resumed>) = 0 [pid 5079] rmdir("./39/file0" [pid 5826] <... clone resumed>, parent_tid=[5827], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5827 [pid 5826] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5079] <... rmdir resumed>) = 0 [pid 5079] getdents64(3, [pid 5826] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5079] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5079] close(3) = 0 [pid 5079] rmdir("./39") = 0 [ 115.272834][ T5823] reiserfs: using flush barriers [ 115.283549][ T5822] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 115.292888][ T5822] REISERFS (device loop1): using ordered data mode [ 115.300304][ T5822] reiserfs: using flush barriers [pid 5079] mkdir("./40", 0777./strace-static-x86_64: Process 5827 attached [pid 5827] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5827] memfd_create("syzkaller", 0 [pid 5079] <... mkdir resumed>) = 0 [pid 5079] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5827] <... memfd_create resumed>) = 3 [pid 5079] ioctl(3, LOOP_CLR_FD [pid 5827] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5079] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5827] <... mmap resumed>) = 0x7fdb6a513000 [pid 5079] close(3) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5828 ./strace-static-x86_64: Process 5828 attached [pid 5828] set_robust_list(0x5555571745e0, 24) = 0 [pid 5828] chdir("./40") = 0 [pid 5828] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5828] setpgid(0, 0) = 0 [pid 5828] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5828] write(3, "1000", 4) = 4 [pid 5828] close(3) = 0 [pid 5828] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5828] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5828] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5828] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5828] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5829], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5829 [pid 5828] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 115.326767][ T5823] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 115.327201][ T5822] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5828] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5078] <... umount2 resumed>) = 0 ./strace-static-x86_64: Process 5829 attached [pid 5078] umount2("./40/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5829] set_robust_list(0x7fdb729339e0, 24 [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5078] lstat("./40/file0", [pid 5829] <... set_robust_list resumed>) = 0 [pid 5078] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5827] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5078] umount2("./40/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5078] openat(AT_FDCWD, "./40/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5829] memfd_create("syzkaller", 0 [pid 5078] <... openat resumed>) = 4 [pid 5078] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] getdents64(4, [pid 5829] <... memfd_create resumed>) = 3 [pid 5078] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5078] getdents64(4, [pid 5829] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5078] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5078] close(4 [pid 5829] <... mmap resumed>) = 0x7fdb6a513000 [pid 5078] <... close resumed>) = 0 [pid 5078] rmdir("./40/file0") = 0 [pid 5078] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5078] close(3) = 0 [pid 5078] rmdir("./40") = 0 [pid 5078] mkdir("./41", 0777) = 0 [pid 5078] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5078] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [ 115.400768][ T5823] REISERFS (device loop3): checking transaction log (loop3) [ 115.435489][ T5822] REISERFS (device loop1): checking transaction log (loop1) [pid 5078] close(3) = 0 [pid 5078] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5830 [pid 5076] <... umount2 resumed>) = 0 ./strace-static-x86_64: Process 5830 attached [pid 5830] set_robust_list(0x5555571745e0, 24) = 0 [pid 5830] chdir("./41") = 0 [pid 5830] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5830] setpgid(0, 0) = 0 [pid 5830] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5830] write(3, "1000", 4) = 4 [pid 5830] close(3) = 0 [pid 5830] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5830] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5830] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5830] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5830] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5831], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5831 [pid 5830] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5830] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5076] umount2("./40/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5076] lstat("./40/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] umount2("./40/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5076] openat(AT_FDCWD, "./40/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY./strace-static-x86_64: Process 5831 attached [pid 5831] set_robust_list(0x7fdb729339e0, 24 [pid 5076] <... openat resumed>) = 4 [pid 5831] <... set_robust_list resumed>) = 0 [pid 5829] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5076] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5831] memfd_create("syzkaller", 0 [pid 5076] getdents64(4, [pid 5831] <... memfd_create resumed>) = 3 [pid 5076] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5831] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5076] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5076] close(4 [pid 5831] <... mmap resumed>) = 0x7fdb6a513000 [pid 5076] <... close resumed>) = 0 [pid 5076] rmdir("./40/file0") = 0 [pid 5076] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5076] close(3) = 0 [pid 5076] rmdir("./40") = 0 [pid 5076] mkdir("./41", 0777) = 0 [pid 5076] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5076] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5076] close(3) = 0 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5832 ./strace-static-x86_64: Process 5832 attached [pid 5832] set_robust_list(0x5555571745e0, 24) = 0 [pid 5832] chdir("./41") = 0 [pid 5832] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5827] <... write resumed>) = 4194304 [pid 5832] <... prctl resumed>) = 0 [pid 5832] setpgid(0, 0) = 0 [pid 5832] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5832] write(3, "1000", 4) = 4 [pid 5832] close(3) = 0 [pid 5832] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5832] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5832] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5827] munmap(0x7fdb6a513000, 4194304 [pid 5832] <... mmap resumed>) = 0x7fdb72913000 [pid 5827] <... munmap resumed>) = 0 [pid 5832] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5827] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5832] <... mprotect resumed>) = 0 [pid 5827] <... openat resumed>) = 4 [pid 5832] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5827] ioctl(4, LOOP_SET_FD, 3 [pid 5832] <... clone resumed>, parent_tid=[5833], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5833 [pid 5832] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5832] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5833 attached [pid 5833] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5833] memfd_create("syzkaller", 0) = 3 [pid 5833] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [pid 5827] <... ioctl resumed>) = 0 [pid 5827] close(3) = 0 [pid 5827] mkdir("./file0", 0777) = 0 [ 115.608678][ T5827] loop0: detected capacity change from 0 to 8192 [pid 5827] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC, "" [ 115.658629][ T5827] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 115.694442][ T5823] REISERFS (device loop3): Using r5 hash to sort names [pid 5831] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5833] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5829] <... write resumed>) = 4194304 [pid 5823] <... mount resumed>) = 0 [ 115.704370][ T5823] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 115.720113][ T5827] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 115.729630][ T5827] REISERFS (device loop0): using ordered data mode [ 115.736252][ T5827] reiserfs: using flush barriers [pid 5823] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5831] <... write resumed>) = 4194304 [pid 5829] munmap(0x7fdb6a513000, 4194304 [pid 5823] chdir("./file0" [pid 5831] munmap(0x7fdb6a513000, 4194304 [pid 5829] <... munmap resumed>) = 0 [pid 5823] <... chdir resumed>) = 0 [pid 5833] <... write resumed>) = 4194304 [pid 5823] ioctl(4, LOOP_CLR_FD) = 0 [pid 5823] close(4 [pid 5833] munmap(0x7fdb6a513000, 4194304 [pid 5831] <... munmap resumed>) = 0 [pid 5829] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5823] <... close resumed>) = 0 [pid 5833] <... munmap resumed>) = 0 [pid 5831] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5829] <... openat resumed>) = 4 [pid 5823] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5822] <... mount resumed>) = 0 [pid 5833] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5831] <... openat resumed>) = 4 [pid 5829] ioctl(4, LOOP_SET_FD, 3 [pid 5823] <... futex resumed>) = 1 [pid 5833] <... openat resumed>) = 4 [pid 5831] ioctl(4, LOOP_SET_FD, 3 [pid 5822] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5820] <... futex resumed>) = 0 [pid 5833] ioctl(4, LOOP_SET_FD, 3 [pid 5823] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5820] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5823] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5822] <... openat resumed>) = 3 [pid 5820] <... futex resumed>) = 0 [pid 5823] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5822] chdir("./file0" [pid 5820] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5822] <... chdir resumed>) = 0 [pid 5822] ioctl(4, LOOP_CLR_FD) = 0 [pid 5822] close(4 [pid 5823] <... open resumed>) = 4 [pid 5822] <... close resumed>) = 0 [pid 5823] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5822] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5823] <... futex resumed>) = 1 [pid 5822] <... futex resumed>) = 1 [pid 5820] <... futex resumed>) = 0 [pid 5818] <... futex resumed>) = 0 [pid 5823] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5822] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5820] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5818] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [ 115.744420][ T5827] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 115.763986][ T5822] REISERFS (device loop1): Using r5 hash to sort names [ 115.771216][ T5822] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 115.784842][ T5827] REISERFS (device loop0): checking transaction log (loop0) [pid 5822] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5818] <... futex resumed>) = 0 [pid 5820] <... futex resumed>) = 0 [pid 5823] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5833] <... ioctl resumed>) = 0 [pid 5822] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5823] ioctl(4, FS_IOC_GETVERSION [pid 5822] <... open resumed>) = 4 [pid 5820] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5818] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5822] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5822] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5823] <... ioctl resumed>, 0x20000080) = 0 [pid 5818] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5833] close(3 [pid 5831] <... ioctl resumed>) = 0 [pid 5829] <... ioctl resumed>) = 0 [pid 5823] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5818] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5823] <... futex resumed>) = 1 [pid 5822] <... futex resumed>) = 0 [pid 5818] <... futex resumed>) = 1 [pid 5822] ioctl(4, FS_IOC_GETVERSION [pid 5823] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5820] <... futex resumed>) = 0 [pid 5818] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5822] <... ioctl resumed>, 0x20000080) = 0 [pid 5822] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5820] exit_group(0 [pid 5818] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5823] <... futex resumed>) = ? [pid 5822] <... futex resumed>) = 0 [pid 5820] <... exit_group resumed>) = ? [pid 5833] <... close resumed>) = 0 [pid 5831] close(3 [pid 5829] close(3 [pid 5823] +++ exited with 0 +++ [pid 5822] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5818] exit_group(0 [pid 5833] mkdir("./file0", 0777 [pid 5820] +++ exited with 0 +++ [pid 5831] <... close resumed>) = 0 [pid 5829] <... close resumed>) = 0 [pid 5822] <... futex resumed>) = ? [pid 5818] <... exit_group resumed>) = ? [pid 5822] +++ exited with 0 +++ [pid 5833] <... mkdir resumed>) = 0 [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5820, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 5831] mkdir("./file0", 0777 [pid 5829] mkdir("./file0", 0777 [pid 5818] +++ exited with 0 +++ [pid 5829] <... mkdir resumed>) = 0 [pid 5831] <... mkdir resumed>) = 0 [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5818, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=16 /* 0.16 s */} --- [pid 5831] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5829] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5075] restart_syscall(<... resuming interrupted clone ...> [pid 5833] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5075] <... restart_syscall resumed>) = 0 [pid 5077] umount2("./41", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] openat(AT_FDCWD, "./41", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] umount2("./39", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... openat resumed>) = 3 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] openat(AT_FDCWD, "./39", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [ 115.810837][ T5829] loop5: detected capacity change from 0 to 8192 [ 115.817544][ T5831] loop4: detected capacity change from 0 to 8192 [ 115.824370][ T5833] loop2: detected capacity change from 0 to 8192 [pid 5077] fstat(3, [pid 5075] <... openat resumed>) = 3 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] getdents64(3, [pid 5075] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5075] getdents64(3, [pid 5077] umount2("./41/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5075] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5077] lstat("./41/binderfs", [pid 5075] umount2("./39/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] unlink("./41/binderfs" [pid 5075] lstat("./39/binderfs", [pid 5077] <... unlink resumed>) = 0 [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] umount2("./41/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] unlink("./39/binderfs") = 0 [ 115.883758][ T5829] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 115.899988][ T5831] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 115.906336][ T5829] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 115.915019][ T5833] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 115.925580][ T5829] REISERFS (device loop5): using ordered data mode [ 115.942691][ T5829] reiserfs: using flush barriers [ 115.949361][ T5831] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 115.952148][ T5827] REISERFS (device loop0): Using r5 hash to sort names [ 115.958884][ T5829] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5075] umount2("./39/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5827] <... mount resumed>) = 0 [ 115.982321][ T5829] REISERFS (device loop5): checking transaction log (loop5) [ 115.995441][ T5833] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 116.004858][ T5833] REISERFS (device loop2): using ordered data mode [ 116.011737][ T5833] reiserfs: using flush barriers [ 116.018393][ T5827] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 116.028077][ T5831] REISERFS (device loop4): using ordered data mode [pid 5827] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5827] chdir("./file0") = 0 [pid 5827] ioctl(4, LOOP_CLR_FD) = 0 [pid 5827] close(4) = 0 [pid 5827] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5826] <... futex resumed>) = 0 [pid 5827] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5826] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5827] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5826] <... futex resumed>) = 0 [pid 5827] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5826] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5827] <... open resumed>) = 4 [pid 5827] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5826] <... futex resumed>) = 0 [ 116.029878][ T5833] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 116.034759][ T5831] reiserfs: using flush barriers [ 116.056242][ T5831] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 116.073445][ T5831] REISERFS (device loop4): checking transaction log (loop4) [pid 5827] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5826] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5827] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5826] <... futex resumed>) = 0 [pid 5827] ioctl(4, FS_IOC_GETVERSION [pid 5826] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5827] <... ioctl resumed>, 0x20000080) = 0 [pid 5827] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5826] <... futex resumed>) = 0 [pid 5827] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5826] exit_group(0 [pid 5827] <... futex resumed>) = ? [pid 5826] <... exit_group resumed>) = ? [pid 5827] +++ exited with 0 +++ [pid 5826] +++ exited with 0 +++ [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5826, si_uid=0, si_status=0, si_utime=0, si_stime=21 /* 0.21 s */} --- [pid 5074] umount2("./41", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] openat(AT_FDCWD, "./41", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5074] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5074] umount2("./41/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] lstat("./41/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5074] unlink("./41/binderfs") = 0 [pid 5074] umount2("./41/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... umount2 resumed>) = 0 [pid 5077] umount2("./41/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] lstat("./41/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] umount2("./41/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] openat(AT_FDCWD, "./41/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] <... umount2 resumed>) = 0 [pid 5077] <... openat resumed>) = 4 [pid 5077] fstat(4, [pid 5075] umount2("./39/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] getdents64(4, [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5077] getdents64(4, [pid 5075] lstat("./39/file0", [pid 5077] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5075] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] close(4 [pid 5075] umount2("./39/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... close resumed>) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 116.214773][ T5833] REISERFS (device loop2): checking transaction log (loop2) [pid 5077] rmdir("./41/file0" [pid 5075] openat(AT_FDCWD, "./39/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] <... rmdir resumed>) = 0 [pid 5075] <... openat resumed>) = 4 [pid 5077] getdents64(3, [pid 5075] fstat(4, [pid 5077] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] close(3 [pid 5075] getdents64(4, [pid 5077] <... close resumed>) = 0 [pid 5075] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5077] rmdir("./41" [pid 5075] getdents64(4, [pid 5077] <... rmdir resumed>) = 0 [pid 5075] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5077] mkdir("./42", 0777 [pid 5075] close(4 [pid 5077] <... mkdir resumed>) = 0 [pid 5075] <... close resumed>) = 0 [pid 5077] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5075] rmdir("./39/file0" [pid 5077] <... openat resumed>) = 3 [pid 5075] <... rmdir resumed>) = 0 [pid 5077] ioctl(3, LOOP_CLR_FD [pid 5075] getdents64(3, [pid 5077] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5075] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5077] close(3 [pid 5075] close(3 [pid 5077] <... close resumed>) = 0 [pid 5075] <... close resumed>) = 0 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] rmdir("./39") = 0 [pid 5077] <... clone resumed>, child_tidptr=0x5555571745d0) = 5838 [pid 5075] mkdir("./40", 0777) = 0 [pid 5075] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [ 116.272198][ T5829] REISERFS (device loop5): Using r5 hash to sort names [pid 5075] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) ./strace-static-x86_64: Process 5838 attached [pid 5075] close(3 [pid 5838] set_robust_list(0x5555571745e0, 24 [pid 5075] <... close resumed>) = 0 [pid 5838] <... set_robust_list resumed>) = 0 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5838] chdir("./42") = 0 [pid 5075] <... clone resumed>, child_tidptr=0x5555571745d0) = 5839 [pid 5838] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5838] setpgid(0, 0) = 0 [pid 5838] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5838] write(3, "1000", 4./strace-static-x86_64: Process 5839 attached ) = 4 [pid 5839] set_robust_list(0x5555571745e0, 24 [pid 5838] close(3 [pid 5839] <... set_robust_list resumed>) = 0 [pid 5838] <... close resumed>) = 0 [pid 5839] chdir("./40" [pid 5838] symlink("/dev/binderfs", "./binderfs" [pid 5839] <... chdir resumed>) = 0 [pid 5838] <... symlink resumed>) = 0 [pid 5839] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5838] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5839] <... prctl resumed>) = 0 [pid 5838] <... futex resumed>) = 0 [pid 5839] setpgid(0, 0 [pid 5838] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5839] <... setpgid resumed>) = 0 [pid 5838] <... mmap resumed>) = 0x7fdb72913000 [pid 5839] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5838] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5839] <... openat resumed>) = 3 [pid 5838] <... mprotect resumed>) = 0 [pid 5839] write(3, "1000", 4 [pid 5838] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5839] <... write resumed>) = 4 [pid 5839] close(3 [pid 5838] <... clone resumed>, parent_tid=[5840], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5840 [pid 5839] <... close resumed>) = 0 [pid 5838] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5839] symlink("/dev/binderfs", "./binderfs" [pid 5838] <... futex resumed>) = 0 [pid 5839] <... symlink resumed>) = 0 [pid 5838] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5829] <... mount resumed>) = 0 ./strace-static-x86_64: Process 5840 attached [pid 5839] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5829] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5840] set_robust_list(0x7fdb729339e0, 24 [pid 5839] <... futex resumed>) = 0 [pid 5829] <... openat resumed>) = 3 [pid 5840] <... set_robust_list resumed>) = 0 [pid 5839] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5829] chdir("./file0" [pid 5840] memfd_create("syzkaller", 0 [pid 5839] <... mmap resumed>) = 0x7fdb72913000 [pid 5829] <... chdir resumed>) = 0 [pid 5840] <... memfd_create resumed>) = 3 [pid 5839] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [ 116.316711][ T5829] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 5829] ioctl(4, LOOP_CLR_FD [pid 5840] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5839] <... mprotect resumed>) = 0 [pid 5829] <... ioctl resumed>) = 0 [pid 5840] <... mmap resumed>) = 0x7fdb6a513000 [pid 5839] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5829] close(4) = 0 [pid 5839] <... clone resumed>, parent_tid=[5841], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5841 [pid 5829] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5839] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5829] <... futex resumed>) = 1 [pid 5828] <... futex resumed>) = 0 [pid 5839] <... futex resumed>) = 0 [pid 5829] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5828] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5839] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5829] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5828] <... futex resumed>) = 0 [pid 5829] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5828] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5829] <... open resumed>) = 4 [pid 5829] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5828] <... futex resumed>) = 0 [pid 5829] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5828] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5829] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5828] <... futex resumed>) = 0 [pid 5829] ioctl(4, FS_IOC_GETVERSION [pid 5828] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5829] <... ioctl resumed>, 0x20000080) = 0 [pid 5829] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 5841 attached ) = 1 [pid 5828] <... futex resumed>) = 0 [pid 5841] set_robust_list(0x7fdb729339e0, 24 [pid 5829] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5828] exit_group(0 [pid 5841] <... set_robust_list resumed>) = 0 [pid 5829] <... futex resumed>) = ? [pid 5828] <... exit_group resumed>) = ? [pid 5074] <... umount2 resumed>) = 0 [pid 5841] memfd_create("syzkaller", 0 [pid 5829] +++ exited with 0 +++ [pid 5828] +++ exited with 0 +++ [pid 5074] umount2("./41/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5828, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=21 /* 0.21 s */} --- [pid 5841] <... memfd_create resumed>) = 3 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5841] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5074] lstat("./41/file0", [pid 5841] <... mmap resumed>) = 0x7fdb6a513000 [pid 5079] umount2("./40", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] openat(AT_FDCWD, "./40", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5079] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] getdents64(3, [pid 5074] umount2("./41/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5079] umount2("./40/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] openat(AT_FDCWD, "./41/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] lstat("./40/binderfs", [pid 5831] <... mount resumed>) = 0 [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5074] <... openat resumed>) = 4 [pid 5079] unlink("./40/binderfs" [pid 5831] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5074] fstat(4, [pid 5079] <... unlink resumed>) = 0 [pid 5831] <... openat resumed>) = 3 [ 116.376956][ T5831] REISERFS (device loop4): Using r5 hash to sort names [ 116.415744][ T5831] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [pid 5079] umount2("./40/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5831] chdir("./file0" [pid 5074] getdents64(4, [pid 5831] <... chdir resumed>) = 0 [pid 5831] ioctl(4, LOOP_CLR_FD [pid 5074] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5831] <... ioctl resumed>) = 0 [pid 5074] getdents64(4, [pid 5831] close(4 [pid 5074] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5831] <... close resumed>) = 0 [pid 5840] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5831] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5074] close(4 [pid 5831] <... futex resumed>) = 1 [pid 5830] <... futex resumed>) = 0 [pid 5074] <... close resumed>) = 0 [pid 5831] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5830] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5074] rmdir("./41/file0" [pid 5841] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5831] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5830] <... futex resumed>) = 0 [pid 5831] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5830] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5074] <... rmdir resumed>) = 0 [pid 5831] <... open resumed>) = 4 [pid 5074] getdents64(3, [pid 5831] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5830] <... futex resumed>) = 0 [pid 5074] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5831] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5830] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5074] close(3 [pid 5831] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5830] <... futex resumed>) = 0 [pid 5831] ioctl(4, FS_IOC_GETVERSION [pid 5830] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5074] <... close resumed>) = 0 [pid 5831] <... ioctl resumed>, 0x20000080) = 0 [pid 5831] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5074] rmdir("./41" [pid 5831] <... futex resumed>) = 1 [pid 5830] <... futex resumed>) = 0 [pid 5831] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5830] exit_group(0 [pid 5074] <... rmdir resumed>) = 0 [pid 5831] <... futex resumed>) = ? [pid 5830] <... exit_group resumed>) = ? [pid 5074] mkdir("./42", 0777 [pid 5831] +++ exited with 0 +++ [pid 5830] +++ exited with 0 +++ [pid 5078] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5830, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=19 /* 0.19 s */} --- [pid 5074] <... mkdir resumed>) = 0 [pid 5074] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5833] <... mount resumed>) = 0 [pid 5074] <... openat resumed>) = 3 [pid 5074] ioctl(3, LOOP_CLR_FD [pid 5833] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5078] umount2("./41", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5833] <... openat resumed>) = 3 [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5833] chdir("./file0" [pid 5078] openat(AT_FDCWD, "./41", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5074] close(3 [pid 5833] <... chdir resumed>) = 0 [pid 5078] <... openat resumed>) = 3 [pid 5078] fstat(3, [pid 5074] <... close resumed>) = 0 [pid 5078] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5078] umount2("./41/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5078] lstat("./41/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5078] unlink("./41/binderfs") = 0 [pid 5833] ioctl(4, LOOP_CLR_FD [pid 5078] umount2("./41/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5841] <... write resumed>) = 4194304 [pid 5833] <... ioctl resumed>) = 0 [pid 5841] munmap(0x7fdb6a513000, 4194304 [pid 5833] close(4 [pid 5841] <... munmap resumed>) = 0 [pid 5833] <... close resumed>) = 0 [pid 5074] <... clone resumed>, child_tidptr=0x5555571745d0) = 5842 [pid 5841] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5833] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5841] <... openat resumed>) = 4 [pid 5833] <... futex resumed>) = 1 [pid 5832] <... futex resumed>) = 0 [pid 5832] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 116.517616][ T5833] REISERFS (device loop2): Using r5 hash to sort names [ 116.533728][ T5833] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 5832] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5841] ioctl(4, LOOP_SET_FD, 3 [pid 5833] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 5833] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5833] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5832] <... futex resumed>) = 0 [pid 5832] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5833] <... futex resumed>) = 0 [pid 5832] <... futex resumed>) = 1 ./strace-static-x86_64: Process 5842 attached [pid 5833] ioctl(4, FS_IOC_GETVERSION [pid 5832] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5833] <... ioctl resumed>, 0x20000080) = 0 [pid 5842] set_robust_list(0x5555571745e0, 24 [pid 5833] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5832] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5833] <... futex resumed>) = 0 [pid 5842] <... set_robust_list resumed>) = 0 [pid 5833] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5832] exit_group(0 [pid 5833] <... futex resumed>) = ? [pid 5832] <... exit_group resumed>) = ? [pid 5842] chdir("./42" [pid 5833] +++ exited with 0 +++ [pid 5841] <... ioctl resumed>) = 0 [pid 5832] +++ exited with 0 +++ [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5832, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=17 /* 0.17 s */} --- [pid 5842] <... chdir resumed>) = 0 [pid 5841] close(3 [pid 5076] umount2("./41", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5076] openat(AT_FDCWD, "./41", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5076] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5842] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5076] umount2("./41/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5842] <... prctl resumed>) = 0 [pid 5841] <... close resumed>) = 0 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] lstat("./41/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5842] setpgid(0, 0 [pid 5841] mkdir("./file0", 0777 [pid 5076] unlink("./41/binderfs" [pid 5842] <... setpgid resumed>) = 0 [pid 5841] <... mkdir resumed>) = 0 [pid 5076] <... unlink resumed>) = 0 [pid 5842] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5841] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5076] umount2("./41/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5842] <... openat resumed>) = 3 [pid 5842] write(3, "1000", 4) = 4 [pid 5842] close(3) = 0 [pid 5842] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5842] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5842] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5842] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [ 116.597838][ T5841] loop1: detected capacity change from 0 to 8192 [pid 5842] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5844], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5844 ./strace-static-x86_64: Process 5844 attached [pid 5844] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5844] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5842] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5844] <... futex resumed>) = 0 [pid 5842] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5844] memfd_create("syzkaller", 0) = 3 [pid 5844] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [pid 5840] <... write resumed>) = 4194304 [pid 5079] <... umount2 resumed>) = 0 [pid 5079] umount2("./40/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] lstat("./40/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5840] munmap(0x7fdb6a513000, 4194304 [pid 5079] umount2("./40/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5840] <... munmap resumed>) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./40/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [ 116.657902][ T5841] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 116.688640][ T5841] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 116.698544][ T5841] REISERFS (device loop1): using ordered data mode [pid 5079] fstat(4, [pid 5840] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5840] <... openat resumed>) = 4 [pid 5079] getdents64(4, [pid 5840] ioctl(4, LOOP_SET_FD, 3 [pid 5079] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5079] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5079] close(4) = 0 [pid 5079] rmdir("./40/file0") = 0 [pid 5079] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5079] close(3) = 0 [pid 5079] rmdir("./40") = 0 [pid 5079] mkdir("./41", 0777) = 0 [pid 5079] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5079] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [ 116.706043][ T5841] reiserfs: using flush barriers [ 116.709706][ T5840] loop3: detected capacity change from 0 to 8192 [ 116.718716][ T5841] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5079] close(3 [pid 5840] <... ioctl resumed>) = 0 [pid 5079] <... close resumed>) = 0 [pid 5078] <... umount2 resumed>) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5845 [pid 5840] close(3 [pid 5078] umount2("./41/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5840] <... close resumed>) = 0 [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5840] mkdir("./file0", 0777 [pid 5078] lstat("./41/file0", ./strace-static-x86_64: Process 5845 attached [pid 5840] <... mkdir resumed>) = 0 [pid 5845] set_robust_list(0x5555571745e0, 24 [pid 5840] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5078] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5845] <... set_robust_list resumed>) = 0 [pid 5845] chdir("./41") = 0 [pid 5078] umount2("./41/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5845] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5845] setpgid(0, 0) = 0 [pid 5078] openat(AT_FDCWD, "./41/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5845] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5078] <... openat resumed>) = 4 [pid 5845] write(3, "1000", 4 [pid 5078] fstat(4, [pid 5845] <... write resumed>) = 4 [pid 5078] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5845] close(3 [pid 5078] getdents64(4, [pid 5845] <... close resumed>) = 0 [ 116.761598][ T5841] REISERFS (device loop1): checking transaction log (loop1) [pid 5845] symlink("/dev/binderfs", "./binderfs" [pid 5078] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5845] <... symlink resumed>) = 0 [pid 5845] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5845] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5845] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5845] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5847], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5847 [pid 5845] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5844] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5845] <... futex resumed>) = 0 [pid 5845] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5078] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5078] close(4./strace-static-x86_64: Process 5847 attached ) = 0 [pid 5847] set_robust_list(0x7fdb729339e0, 24 [pid 5078] rmdir("./41/file0" [pid 5847] <... set_robust_list resumed>) = 0 [pid 5078] <... rmdir resumed>) = 0 [pid 5078] getdents64(3, [pid 5847] memfd_create("syzkaller", 0 [pid 5078] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5847] <... memfd_create resumed>) = 3 [pid 5078] close(3 [pid 5847] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5078] <... close resumed>) = 0 [pid 5847] <... mmap resumed>) = 0x7fdb6a513000 [pid 5078] rmdir("./41") = 0 [pid 5078] mkdir("./42", 0777) = 0 [pid 5078] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [ 116.815769][ T5840] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5078] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5078] close(3) = 0 [pid 5078] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5848 ./strace-static-x86_64: Process 5848 attached [pid 5848] set_robust_list(0x5555571745e0, 24) = 0 [pid 5848] chdir("./42") = 0 [ 116.864286][ T5840] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 116.874934][ T5840] REISERFS (device loop3): using ordered data mode [ 116.881506][ T5840] reiserfs: using flush barriers [ 116.887806][ T5841] REISERFS (device loop1): Using r5 hash to sort names [ 116.896369][ T5840] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5848] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5848] setpgid(0, 0) = 0 [pid 5848] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5848] write(3, "1000", 4) = 4 [pid 5848] close(3) = 0 [pid 5848] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5848] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5848] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5848] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5841] <... mount resumed>) = 0 [pid 5841] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5848] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5841] <... openat resumed>) = 3 [pid 5841] chdir("./file0" [pid 5848] <... clone resumed>, parent_tid=[5849], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5849 [pid 5841] <... chdir resumed>) = 0 [pid 5848] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5841] ioctl(4, LOOP_CLR_FD./strace-static-x86_64: Process 5849 attached [pid 5848] <... futex resumed>) = 0 [pid 5841] <... ioctl resumed>) = 0 [pid 5849] set_robust_list(0x7fdb729339e0, 24 [pid 5848] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5841] close(4 [pid 5849] <... set_robust_list resumed>) = 0 [pid 5849] memfd_create("syzkaller", 0 [pid 5841] <... close resumed>) = 0 [pid 5849] <... memfd_create resumed>) = 3 [pid 5841] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5849] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5841] <... futex resumed>) = 1 [pid 5839] <... futex resumed>) = 0 [pid 5849] <... mmap resumed>) = 0x7fdb6a513000 [pid 5841] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [ 116.913679][ T5841] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 116.924973][ T5840] REISERFS (device loop3): checking transaction log (loop3) [pid 5839] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5841] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5839] <... futex resumed>) = 0 [pid 5841] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5839] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5841] <... open resumed>) = 4 [pid 5841] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5839] <... futex resumed>) = 0 [pid 5841] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5839] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5841] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5839] <... futex resumed>) = 0 [pid 5841] ioctl(4, FS_IOC_GETVERSION [pid 5839] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5841] <... ioctl resumed>, 0x20000080) = 0 [pid 5841] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5839] <... futex resumed>) = 0 [pid 5841] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5839] exit_group(0 [pid 5841] <... futex resumed>) = ? [pid 5839] <... exit_group resumed>) = ? [pid 5841] +++ exited with 0 +++ [pid 5076] <... umount2 resumed>) = 0 [pid 5839] +++ exited with 0 +++ [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5839, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- [pid 5076] umount2("./41/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5076] lstat("./41/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] umount2("./41/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5076] openat(AT_FDCWD, "./41/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5076] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5076] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5076] close(4 [pid 5075] umount2("./40", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... close resumed>) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5849] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5076] rmdir("./41/file0" [pid 5075] openat(AT_FDCWD, "./40", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] <... rmdir resumed>) = 0 [pid 5075] <... openat resumed>) = 3 [pid 5076] getdents64(3, [pid 5075] fstat(3, [pid 5076] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] close(3) = 0 [pid 5075] getdents64(3, [pid 5076] rmdir("./41" [pid 5075] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5847] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5076] <... rmdir resumed>) = 0 [pid 5075] umount2("./40/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] mkdir("./42", 0777 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5844] <... write resumed>) = 4194304 [pid 5076] <... mkdir resumed>) = 0 [pid 5075] lstat("./40/binderfs", [pid 5076] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] ioctl(3, LOOP_CLR_FD [pid 5075] unlink("./40/binderfs" [pid 5076] <... ioctl resumed>) = -1 ENXIO (No such device or address) [ 117.007630][ T5840] REISERFS (device loop3): Using r5 hash to sort names [ 117.019372][ T5840] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [pid 5076] close(3 [pid 5075] <... unlink resumed>) = 0 [pid 5844] munmap(0x7fdb6a513000, 4194304 [pid 5840] <... mount resumed>) = 0 [pid 5076] <... close resumed>) = 0 [pid 5075] umount2("./40/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5844] <... munmap resumed>) = 0 [pid 5840] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5844] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5840] <... openat resumed>) = 3 [pid 5844] <... openat resumed>) = 4 [pid 5840] chdir("./file0" [pid 5076] <... clone resumed>, child_tidptr=0x5555571745d0) = 5850 [pid 5844] ioctl(4, LOOP_SET_FD, 3 [pid 5840] <... chdir resumed>) = 0 [pid 5840] ioctl(4, LOOP_CLR_FD) = 0 [pid 5840] close(4) = 0 [pid 5840] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5838] <... futex resumed>) = 0 [pid 5840] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5838] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5840] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5838] <... futex resumed>) = 0 [pid 5840] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5838] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5840] <... open resumed>) = 4 [pid 5844] <... ioctl resumed>) = 0 [pid 5840] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5844] close(3 [pid 5840] <... futex resumed>) = 1 [pid 5838] <... futex resumed>) = 0 [pid 5844] <... close resumed>) = 0 [pid 5840] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5838] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 5850 attached [pid 5849] <... write resumed>) = 4194304 [pid 5844] mkdir("./file0", 0777 [pid 5840] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5838] <... futex resumed>) = 0 [pid 5850] set_robust_list(0x5555571745e0, 24) = 0 [pid 5849] munmap(0x7fdb6a513000, 4194304 [pid 5844] <... mkdir resumed>) = 0 [pid 5840] ioctl(4, FS_IOC_GETVERSION [pid 5838] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [ 117.078908][ T5844] loop0: detected capacity change from 0 to 8192 [pid 5850] chdir("./42" [pid 5844] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5840] <... ioctl resumed>, 0x20000080) = 0 [pid 5850] <... chdir resumed>) = 0 [pid 5849] <... munmap resumed>) = 0 [pid 5847] <... write resumed>) = 4194304 [pid 5840] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5850] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5849] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5847] munmap(0x7fdb6a513000, 4194304 [pid 5840] <... futex resumed>) = 1 [pid 5838] <... futex resumed>) = 0 [pid 5850] <... prctl resumed>) = 0 [pid 5849] <... openat resumed>) = 4 [pid 5847] <... munmap resumed>) = 0 [pid 5840] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5838] exit_group(0 [pid 5850] setpgid(0, 0 [pid 5849] ioctl(4, LOOP_SET_FD, 3 [pid 5847] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5840] <... futex resumed>) = ? [pid 5838] <... exit_group resumed>) = ? [pid 5850] <... setpgid resumed>) = 0 [pid 5847] <... openat resumed>) = 4 [pid 5840] +++ exited with 0 +++ [pid 5838] +++ exited with 0 +++ [pid 5850] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5849] <... ioctl resumed>) = 0 [pid 5847] ioctl(4, LOOP_SET_FD, 3 [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5838, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=18 /* 0.18 s */} --- [pid 5850] <... openat resumed>) = 3 [pid 5849] close(3 [pid 5850] write(3, "1000", 4 [pid 5849] <... close resumed>) = 0 [pid 5850] <... write resumed>) = 4 [pid 5849] mkdir("./file0", 0777 [pid 5850] close(3 [pid 5849] <... mkdir resumed>) = 0 [pid 5850] <... close resumed>) = 0 [pid 5849] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5850] symlink("/dev/binderfs", "./binderfs" [pid 5077] umount2("./42", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5850] <... symlink resumed>) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5850] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [ 117.150620][ T5849] loop4: detected capacity change from 0 to 8192 [ 117.150706][ T5844] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 117.161737][ T5847] loop5: detected capacity change from 0 to 8192 [ 117.183656][ T5844] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 117.193116][ T5844] REISERFS (device loop0): using ordered data mode [pid 5077] openat(AT_FDCWD, "./42", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5847] <... ioctl resumed>) = 0 [pid 5847] close(3 [pid 5850] <... futex resumed>) = 0 [pid 5077] <... openat resumed>) = 3 [pid 5850] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5077] fstat(3, [pid 5850] <... mmap resumed>) = 0x7fdb72913000 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5850] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5077] getdents64(3, [pid 5850] <... mprotect resumed>) = 0 [pid 5077] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5850] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5077] umount2("./42/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5850] <... clone resumed>, parent_tid=[5853], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5853 [pid 5077] lstat("./42/binderfs", [pid 5850] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5850] <... futex resumed>) = 0 [pid 5847] <... close resumed>) = 0 [pid 5077] unlink("./42/binderfs" [pid 5850] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5077] <... unlink resumed>) = 0 [pid 5847] mkdir("./file0", 0777 [pid 5077] umount2("./42/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5853 attached [pid 5847] <... mkdir resumed>) = 0 [pid 5853] set_robust_list(0x7fdb729339e0, 24 [pid 5847] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5853] <... set_robust_list resumed>) = 0 [pid 5853] memfd_create("syzkaller", 0) = 3 [ 117.202203][ T5844] reiserfs: using flush barriers [ 117.207544][ T5849] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 117.222043][ T5849] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 117.232403][ T5849] REISERFS (device loop4): using ordered data mode [ 117.239513][ T5849] reiserfs: using flush barriers [ 117.245718][ T5847] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 117.264583][ T5849] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 117.264853][ T5844] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5853] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5075] <... umount2 resumed>) = 0 [pid 5075] umount2("./40/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5075] lstat("./40/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] umount2("./40/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5075] openat(AT_FDCWD, "./40/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5075] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5075] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5075] close(4) = 0 [pid 5075] rmdir("./40/file0") = 0 [pid 5075] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5075] close(3) = 0 [pid 5075] rmdir("./40") = 0 [pid 5075] mkdir("./41", 0777) = 0 [pid 5075] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5075] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5075] close(3) = 0 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5855 ./strace-static-x86_64: Process 5855 attached [pid 5855] set_robust_list(0x5555571745e0, 24) = 0 [pid 5855] chdir("./41") = 0 [pid 5855] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5855] setpgid(0, 0) = 0 [pid 5855] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5855] write(3, "1000", 4) = 4 [pid 5855] close(3) = 0 [pid 5855] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5855] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5855] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5855] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5855] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5856], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5856 [pid 5855] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5855] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5856 attached [pid 5856] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5856] memfd_create("syzkaller", 0) = 3 [pid 5856] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [pid 5853] <... mmap resumed>) = 0x7fdb6a513000 [ 117.290377][ T5849] REISERFS (device loop4): checking transaction log (loop4) [ 117.322550][ T5847] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 117.354769][ T5844] REISERFS (device loop0): checking transaction log (loop0) [ 117.370257][ T5849] REISERFS (device loop4): Using r5 hash to sort names [ 117.384006][ T5849] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [pid 5849] <... mount resumed>) = 0 [pid 5849] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5849] chdir("./file0" [pid 5856] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5849] <... chdir resumed>) = 0 [pid 5849] ioctl(4, LOOP_CLR_FD) = 0 [ 117.408578][ T5847] REISERFS (device loop5): using ordered data mode [ 117.423397][ T5847] reiserfs: using flush barriers [ 117.431093][ T5847] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5849] close(4) = 0 [pid 5849] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5848] <... futex resumed>) = 0 [pid 5849] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5848] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5848] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5849] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5849] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [ 117.465248][ T5847] REISERFS (device loop5): checking transaction log (loop5) [ 117.497120][ T5844] REISERFS (device loop0): Using r5 hash to sort names [pid 5849] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5853] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5849] <... futex resumed>) = 1 [pid 5848] <... futex resumed>) = 0 [pid 5849] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5848] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5849] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5848] <... futex resumed>) = 0 [pid 5849] ioctl(4, FS_IOC_GETVERSION [pid 5848] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5849] <... ioctl resumed>, 0x20000080) = 0 [pid 5849] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5848] <... futex resumed>) = 0 [pid 5849] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5848] exit_group(0 [pid 5849] <... futex resumed>) = ? [pid 5848] <... exit_group resumed>) = ? [pid 5844] <... mount resumed>) = 0 [pid 5849] +++ exited with 0 +++ [pid 5848] +++ exited with 0 +++ [pid 5844] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5078] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5848, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} --- [pid 5078] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5078] umount2("./42", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5844] <... openat resumed>) = 3 [pid 5078] openat(AT_FDCWD, "./42", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5078] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5078] umount2("./42/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5844] chdir("./file0" [ 117.524657][ T5844] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5078] lstat("./42/binderfs", [pid 5844] <... chdir resumed>) = 0 [pid 5078] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5844] ioctl(4, LOOP_CLR_FD [pid 5078] unlink("./42/binderfs" [pid 5844] <... ioctl resumed>) = 0 [pid 5078] <... unlink resumed>) = 0 [pid 5844] close(4 [pid 5078] umount2("./42/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5844] <... close resumed>) = 0 [pid 5856] <... write resumed>) = 4194304 [pid 5844] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] <... umount2 resumed>) = 0 [pid 5856] munmap(0x7fdb6a513000, 4194304 [pid 5844] <... futex resumed>) = 1 [pid 5842] <... futex resumed>) = 0 [pid 5856] <... munmap resumed>) = 0 [pid 5844] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5842] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] umount2("./42/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5856] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5844] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5842] <... futex resumed>) = 0 [pid 5856] <... openat resumed>) = 4 [pid 5844] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5842] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5856] ioctl(4, LOOP_SET_FD, 3 [pid 5844] <... open resumed>) = 4 [pid 5077] lstat("./42/file0", [pid 5856] <... ioctl resumed>) = 0 [pid 5844] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5856] close(3 [pid 5844] <... futex resumed>) = 1 [pid 5842] <... futex resumed>) = 0 [pid 5077] umount2("./42/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5856] <... close resumed>) = 0 [pid 5844] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5842] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5856] mkdir("./file0", 0777 [pid 5844] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5842] <... futex resumed>) = 0 [pid 5077] openat(AT_FDCWD, "./42/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5856] <... mkdir resumed>) = 0 [pid 5844] ioctl(4, FS_IOC_GETVERSION [pid 5842] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5077] <... openat resumed>) = 4 [pid 5856] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5844] <... ioctl resumed>, 0x20000080) = 0 [pid 5077] fstat(4, [pid 5844] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5844] <... futex resumed>) = 1 [pid 5842] <... futex resumed>) = 0 [pid 5077] getdents64(4, [pid 5844] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5842] exit_group(0 [pid 5077] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5844] <... futex resumed>) = ? [pid 5842] <... exit_group resumed>) = ? [pid 5077] getdents64(4, [pid 5844] +++ exited with 0 +++ [pid 5842] +++ exited with 0 +++ [pid 5077] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5077] close(4) = 0 [pid 5077] rmdir("./42/file0") = 0 [ 117.622056][ T5847] REISERFS (device loop5): Using r5 hash to sort names [ 117.634538][ T5856] loop1: detected capacity change from 0 to 8192 [ 117.648873][ T5847] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 5077] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5842, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=22 /* 0.22 s */} --- [pid 5853] <... write resumed>) = 4194304 [pid 5077] close(3) = 0 [pid 5077] rmdir("./42" [pid 5853] munmap(0x7fdb6a513000, 4194304 [pid 5077] <... rmdir resumed>) = 0 [pid 5074] umount2("./42", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] mkdir("./43", 0777) = 0 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5074] openat(AT_FDCWD, "./42", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5077] close(3 [pid 5074] <... openat resumed>) = 3 [pid 5077] <... close resumed>) = 0 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5858 [pid 5847] <... mount resumed>) = 0 [pid 5847] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5847] chdir("./file0") = 0 [pid 5847] ioctl(4, LOOP_CLR_FD) = 0 [pid 5847] close(4) = 0 [pid 5847] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5845] <... futex resumed>) = 0 [pid 5845] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5845] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5847] <... futex resumed>) = 1 [pid 5847] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 5074] fstat(3, [pid 5847] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5074] umount2("./42/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] lstat("./42/binderfs", [pid 5845] <... futex resumed>) = 0 [pid 5074] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5845] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5074] unlink("./42/binderfs" [pid 5845] <... futex resumed>) = 0 [pid 5845] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5074] <... unlink resumed>) = 0 [pid 5074] umount2("./42/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5847] <... futex resumed>) = 1 [pid 5847] ioctl(4, FS_IOC_GETVERSION, 0x20000080) = 0 [pid 5847] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5845] <... futex resumed>) = 0 [pid 5845] exit_group(0) = ? [pid 5853] <... munmap resumed>) = 0 [pid 5847] <... futex resumed>) = ? [pid 5847] +++ exited with 0 +++ [pid 5845] +++ exited with 0 +++ [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5845, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=17 /* 0.17 s */} --- [pid 5079] restart_syscall(<... resuming interrupted clone ...>) = 0 [ 117.665027][ T5856] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 117.700188][ T5856] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 117.713535][ T5856] REISERFS (device loop1): using ordered data mode [pid 5853] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5079] umount2("./41", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5853] <... openat resumed>) = 4 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./41", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5079] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5079] umount2("./41/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] lstat("./41/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] unlink("./41/binderfs") = 0 [pid 5079] umount2("./41/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5858 attached [pid 5853] ioctl(4, LOOP_SET_FD, 3 [pid 5858] set_robust_list(0x5555571745e0, 24) = 0 [pid 5858] chdir("./43") = 0 [pid 5858] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5858] setpgid(0, 0) = 0 [pid 5858] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5858] write(3, "1000", 4) = 4 [pid 5858] close(3) = 0 [pid 5078] <... umount2 resumed>) = 0 [pid 5858] symlink("/dev/binderfs", "./binderfs" [pid 5078] umount2("./42/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5858] <... symlink resumed>) = 0 [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5858] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] lstat("./42/file0", [pid 5858] <... futex resumed>) = 0 [pid 5858] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5078] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5858] <... mmap resumed>) = 0x7fdb72913000 [pid 5078] umount2("./42/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5858] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5858] <... mprotect resumed>) = 0 [pid 5858] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5078] openat(AT_FDCWD, "./42/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5858] <... clone resumed>, parent_tid=[5859], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5859 [pid 5858] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5078] <... openat resumed>) = 4 [pid 5858] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5078] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5078] getdents64(4, ./strace-static-x86_64: Process 5859 attached [pid 5859] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5859] memfd_create("syzkaller", 0 [pid 5078] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5078] close(4 [pid 5859] <... memfd_create resumed>) = 3 [pid 5078] <... close resumed>) = 0 [pid 5078] rmdir("./42/file0" [pid 5859] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [ 117.720783][ T5856] reiserfs: using flush barriers [ 117.728781][ T5856] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 117.735274][ T5853] loop2: detected capacity change from 0 to 8192 [pid 5078] <... rmdir resumed>) = 0 [pid 5078] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5078] close(3) = 0 [pid 5078] rmdir("./42") = 0 [pid 5078] mkdir("./43", 0777 [pid 5853] <... ioctl resumed>) = 0 [pid 5078] <... mkdir resumed>) = 0 [pid 5853] close(3 [pid 5078] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5853] <... close resumed>) = 0 [pid 5853] mkdir("./file0", 0777 [pid 5078] <... openat resumed>) = 3 [pid 5853] <... mkdir resumed>) = 0 [pid 5078] ioctl(3, LOOP_CLR_FD [pid 5853] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5078] <... ioctl resumed>) = -1 ENXIO (No such device or address) [ 117.806605][ T5856] REISERFS (device loop1): checking transaction log (loop1) [pid 5078] close(3) = 0 [pid 5078] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5861 ./strace-static-x86_64: Process 5861 attached [pid 5861] set_robust_list(0x5555571745e0, 24) = 0 [pid 5861] chdir("./43") = 0 [pid 5861] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5861] setpgid(0, 0) = 0 [pid 5861] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5861] write(3, "1000", 4) = 4 [pid 5861] close(3) = 0 [pid 5861] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5861] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5861] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5861] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5861] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5862], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5862 [pid 5861] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 117.844758][ T5853] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 117.865194][ T5853] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [pid 5861] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5862 attached [pid 5862] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5862] memfd_create("syzkaller", 0) = 3 [pid 5862] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [ 117.920418][ T5853] REISERFS (device loop2): using ordered data mode [ 117.943820][ T5853] reiserfs: using flush barriers [pid 5859] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5079] <... umount2 resumed>) = 0 [pid 5074] <... umount2 resumed>) = 0 [pid 5079] umount2("./41/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] umount2("./42/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] lstat("./42/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] lstat("./41/file0", [pid 5074] umount2("./42/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] openat(AT_FDCWD, "./42/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] umount2("./41/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] <... openat resumed>) = 4 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./41/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5074] fstat(4, [pid 5079] <... openat resumed>) = 4 [pid 5079] fstat(4, [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] getdents64(4, [pid 5079] getdents64(4, [pid 5074] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5079] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5074] getdents64(4, [pid 5079] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5074] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5079] close(4 [pid 5074] close(4 [pid 5079] <... close resumed>) = 0 [pid 5074] <... close resumed>) = 0 [pid 5079] rmdir("./41/file0" [pid 5074] rmdir("./42/file0" [pid 5079] <... rmdir resumed>) = 0 [pid 5074] <... rmdir resumed>) = 0 [pid 5079] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5074] getdents64(3, [pid 5079] close(3 [pid 5074] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5079] <... close resumed>) = 0 [pid 5074] close(3 [pid 5079] rmdir("./41" [pid 5074] <... close resumed>) = 0 [pid 5079] <... rmdir resumed>) = 0 [pid 5074] rmdir("./42" [pid 5079] mkdir("./42", 0777) = 0 [pid 5074] <... rmdir resumed>) = 0 [pid 5079] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5074] mkdir("./43", 0777 [pid 5079] <... openat resumed>) = 3 [pid 5079] ioctl(3, LOOP_CLR_FD [pid 5074] <... mkdir resumed>) = 0 [pid 5079] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5079] close(3 [ 117.975551][ T5853] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5074] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5859] <... write resumed>) = 4194304 [pid 5079] <... close resumed>) = 0 [pid 5862] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5074] <... openat resumed>) = 3 [pid 5859] munmap(0x7fdb6a513000, 4194304 [pid 5074] ioctl(3, LOOP_CLR_FD [pid 5079] <... clone resumed>, child_tidptr=0x5555571745d0) = 5863 [pid 5859] <... munmap resumed>) = 0 [pid 5859] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5074] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5859] <... openat resumed>) = 4 [pid 5074] close(3 [pid 5859] ioctl(4, LOOP_SET_FD, 3 [pid 5856] <... mount resumed>) = 0 [pid 5074] <... close resumed>) = 0 ./strace-static-x86_64: Process 5863 attached [pid 5859] <... ioctl resumed>) = 0 [pid 5856] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5856] <... openat resumed>) = 3 [pid 5856] chdir("./file0") = 0 [pid 5074] <... clone resumed>, child_tidptr=0x5555571745d0) = 5864 [pid 5856] ioctl(4, LOOP_CLR_FD) = 0 [pid 5856] close(4) = 0 [pid 5856] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5855] <... futex resumed>) = 0 ./strace-static-x86_64: Process 5864 attached [pid 5856] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5855] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5856] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5855] <... futex resumed>) = 0 [pid 5864] set_robust_list(0x5555571745e0, 24 [pid 5856] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5855] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5864] <... set_robust_list resumed>) = 0 [pid 5863] set_robust_list(0x5555571745e0, 24 [pid 5856] <... open resumed>) = 4 [pid 5864] chdir("./43" [pid 5863] <... set_robust_list resumed>) = 0 [pid 5859] close(3 [pid 5856] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5864] <... chdir resumed>) = 0 [pid 5859] <... close resumed>) = 0 [pid 5856] <... futex resumed>) = 1 [pid 5855] <... futex resumed>) = 0 [pid 5864] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5859] mkdir("./file0", 0777 [pid 5856] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5855] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5864] <... prctl resumed>) = 0 [pid 5859] <... mkdir resumed>) = 0 [pid 5856] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5855] <... futex resumed>) = 0 [pid 5864] setpgid(0, 0 [pid 5859] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5856] ioctl(4, FS_IOC_GETVERSION [pid 5855] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5864] <... setpgid resumed>) = 0 [pid 5863] chdir("./42" [pid 5856] <... ioctl resumed>, 0x20000080) = 0 [pid 5864] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5863] <... chdir resumed>) = 0 [pid 5856] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5864] <... openat resumed>) = 3 [pid 5863] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5856] <... futex resumed>) = 1 [pid 5855] <... futex resumed>) = 0 [pid 5864] write(3, "1000", 4 [pid 5863] <... prctl resumed>) = 0 [pid 5856] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5855] exit_group(0 [pid 5864] <... write resumed>) = 4 [pid 5863] setpgid(0, 0 [pid 5856] <... futex resumed>) = ? [pid 5855] <... exit_group resumed>) = ? [pid 5864] close(3 [pid 5863] <... setpgid resumed>) = 0 [pid 5856] +++ exited with 0 +++ [pid 5855] +++ exited with 0 +++ [pid 5864] <... close resumed>) = 0 [ 118.037834][ T5853] REISERFS (device loop2): checking transaction log (loop2) [ 118.045760][ T5856] REISERFS (device loop1): Using r5 hash to sort names [ 118.053269][ T5856] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 118.075600][ T5859] loop3: detected capacity change from 0 to 8192 [pid 5863] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5855, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- [pid 5864] symlink("/dev/binderfs", "./binderfs" [pid 5075] restart_syscall(<... resuming interrupted clone ...> [pid 5864] <... symlink resumed>) = 0 [pid 5863] <... openat resumed>) = 3 [pid 5075] <... restart_syscall resumed>) = 0 [pid 5864] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5863] write(3, "1000", 4 [pid 5864] <... futex resumed>) = 0 [pid 5863] <... write resumed>) = 4 [pid 5864] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5863] close(3 [pid 5075] umount2("./41", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5864] <... mmap resumed>) = 0x7fdb72913000 [pid 5863] <... close resumed>) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5864] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5863] symlink("/dev/binderfs", "./binderfs" [pid 5075] openat(AT_FDCWD, "./41", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5864] <... mprotect resumed>) = 0 [pid 5863] <... symlink resumed>) = 0 [pid 5075] <... openat resumed>) = 3 [pid 5864] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5863] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5075] fstat(3, [pid 5863] <... futex resumed>) = 0 [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5864] <... clone resumed>, parent_tid=[5866], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5866 [pid 5863] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5075] getdents64(3, [pid 5864] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5863] <... mmap resumed>) = 0x7fdb72913000 [pid 5075] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5864] <... futex resumed>) = 0 [pid 5863] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5075] umount2("./41/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5864] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5863] <... mprotect resumed>) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5863] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5075] lstat("./41/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5863] <... clone resumed>, parent_tid=[5867], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5867 [pid 5075] unlink("./41/binderfs"./strace-static-x86_64: Process 5866 attached [pid 5863] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5075] <... unlink resumed>) = 0 [pid 5866] set_robust_list(0x7fdb729339e0, 24 [pid 5863] <... futex resumed>) = 0 [pid 5075] umount2("./41/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5866] <... set_robust_list resumed>) = 0 [ 118.120103][ T5859] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5863] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5867 attached [pid 5866] memfd_create("syzkaller", 0 [pid 5867] set_robust_list(0x7fdb729339e0, 24 [pid 5866] <... memfd_create resumed>) = 3 [pid 5862] <... write resumed>) = 4194304 [pid 5075] <... umount2 resumed>) = 0 [pid 5075] umount2("./41/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5075] lstat("./41/file0", [pid 5866] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [ 118.162842][ T5859] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 118.172578][ T5859] REISERFS (device loop3): using ordered data mode [ 118.199472][ T5859] reiserfs: using flush barriers [ 118.204987][ T5853] REISERFS (device loop2): Using r5 hash to sort names [pid 5862] munmap(0x7fdb6a513000, 4194304 [pid 5075] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5867] <... set_robust_list resumed>) = 0 [pid 5866] <... mmap resumed>) = 0x7fdb6a513000 [pid 5862] <... munmap resumed>) = 0 [pid 5075] umount2("./41/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5862] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5862] <... openat resumed>) = 4 [pid 5075] openat(AT_FDCWD, "./41/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5862] ioctl(4, LOOP_SET_FD, 3 [pid 5075] <... openat resumed>) = 4 [pid 5867] memfd_create("syzkaller", 0 [pid 5075] fstat(4, [pid 5867] <... memfd_create resumed>) = 3 [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5867] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5075] getdents64(4, [pid 5867] <... mmap resumed>) = 0x7fdb6a513000 [pid 5075] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5075] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5075] close(4) = 0 [pid 5075] rmdir("./41/file0") = 0 [pid 5075] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5075] close(3) = 0 [pid 5075] rmdir("./41") = 0 [pid 5075] mkdir("./42", 0777) = 0 [pid 5075] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5075] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5075] close(3) = 0 [ 118.212275][ T5853] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 118.221971][ T5859] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 118.235679][ T5862] loop4: detected capacity change from 0 to 8192 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5868 [pid 5862] <... ioctl resumed>) = 0 [pid 5862] close(3./strace-static-x86_64: Process 5868 attached ) = 0 [pid 5868] set_robust_list(0x5555571745e0, 24 [pid 5862] mkdir("./file0", 0777 [pid 5868] <... set_robust_list resumed>) = 0 [pid 5862] <... mkdir resumed>) = 0 [pid 5862] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5868] chdir("./42") = 0 [pid 5853] <... mount resumed>) = 0 [pid 5868] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5853] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5868] <... prctl resumed>) = 0 [pid 5853] <... openat resumed>) = 3 [pid 5868] setpgid(0, 0 [pid 5853] chdir("./file0") = 0 [pid 5868] <... setpgid resumed>) = 0 [pid 5853] ioctl(4, LOOP_CLR_FD [pid 5868] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5853] <... ioctl resumed>) = 0 [pid 5853] close(4 [pid 5868] <... openat resumed>) = 3 [pid 5867] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5853] <... close resumed>) = 0 [pid 5868] write(3, "1000", 4 [pid 5853] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5853] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5868] <... write resumed>) = 4 [pid 5850] <... futex resumed>) = 0 [pid 5868] close(3 [pid 5866] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5850] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [ 118.268519][ T5859] REISERFS (device loop3): checking transaction log (loop3) [ 118.303828][ T5862] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5868] <... close resumed>) = 0 [pid 5853] <... futex resumed>) = 0 [pid 5850] <... futex resumed>) = 1 [pid 5868] symlink("/dev/binderfs", "./binderfs" [pid 5867] <... write resumed>) = 4194304 [pid 5853] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5850] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5868] <... symlink resumed>) = 0 [pid 5853] <... open resumed>) = 4 [pid 5868] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5867] munmap(0x7fdb6a513000, 4194304 [pid 5853] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5868] <... futex resumed>) = 0 [pid 5853] <... futex resumed>) = 1 [pid 5850] <... futex resumed>) = 0 [pid 5868] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5853] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5850] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5868] <... mmap resumed>) = 0x7fdb72913000 [pid 5853] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5850] <... futex resumed>) = 0 [pid 5868] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5853] ioctl(4, FS_IOC_GETVERSION [pid 5850] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5868] <... mprotect resumed>) = 0 [pid 5867] <... munmap resumed>) = 0 [pid 5853] <... ioctl resumed>, 0x20000080) = 0 [pid 5868] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5867] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5853] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5867] <... openat resumed>) = 4 [pid 5853] <... futex resumed>) = 1 [pid 5850] <... futex resumed>) = 0 [pid 5868] <... clone resumed>, parent_tid=[5870], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5870 [pid 5867] ioctl(4, LOOP_SET_FD, 3 [pid 5853] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [ 118.358146][ T5862] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 118.367583][ T5862] REISERFS (device loop4): using ordered data mode [ 118.374302][ T5862] reiserfs: using flush barriers [ 118.380610][ T5862] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5850] exit_group(0 [pid 5868] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5853] <... futex resumed>) = ? [pid 5850] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5870 attached [pid 5868] <... futex resumed>) = 0 [pid 5853] +++ exited with 0 +++ [pid 5850] +++ exited with 0 +++ [pid 5870] set_robust_list(0x7fdb729339e0, 24 [pid 5868] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5870] <... set_robust_list resumed>) = 0 [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5850, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} --- [pid 5870] memfd_create("syzkaller", 0 [pid 5076] umount2("./42", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5870] <... memfd_create resumed>) = 3 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5870] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5076] openat(AT_FDCWD, "./42", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5870] <... mmap resumed>) = 0x7fdb6a513000 [pid 5076] <... openat resumed>) = 3 [pid 5867] <... ioctl resumed>) = 0 [pid 5866] <... write resumed>) = 4194304 [pid 5076] fstat(3, [pid 5867] close(3 [pid 5866] munmap(0x7fdb6a513000, 4194304 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5867] <... close resumed>) = 0 [pid 5866] <... munmap resumed>) = 0 [pid 5076] getdents64(3, [pid 5867] mkdir("./file0", 0777 [pid 5866] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5076] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5867] <... mkdir resumed>) = 0 [pid 5866] <... openat resumed>) = 4 [pid 5076] umount2("./42/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5867] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5866] ioctl(4, LOOP_SET_FD, 3 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 118.411590][ T5867] loop5: detected capacity change from 0 to 8192 [ 118.436506][ T5862] REISERFS (device loop4): checking transaction log (loop4) [pid 5076] lstat("./42/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] unlink("./42/binderfs") = 0 [pid 5076] umount2("./42/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5870] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5866] <... ioctl resumed>) = 0 [pid 5866] close(3) = 0 [pid 5866] mkdir("./file0", 0777) = 0 [ 118.478664][ T5866] loop0: detected capacity change from 0 to 8192 [ 118.490556][ T5867] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 118.510154][ T5862] REISERFS (device loop4): Using r5 hash to sort names [pid 5866] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5862] <... mount resumed>) = 0 [pid 5862] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5862] chdir("./file0") = 0 [pid 5862] ioctl(4, LOOP_CLR_FD) = 0 [pid 5862] close(4) = 0 [pid 5862] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5861] <... futex resumed>) = 0 [pid 5861] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5861] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5862] <... futex resumed>) = 1 [pid 5862] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 5862] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5861] <... futex resumed>) = 0 [pid 5861] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5861] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5862] <... futex resumed>) = 1 [pid 5862] ioctl(4, FS_IOC_GETVERSION, 0x20000080) = 0 [pid 5862] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5861] <... futex resumed>) = 0 [pid 5861] exit_group(0) = ? [pid 5862] <... futex resumed>) = ? [pid 5862] +++ exited with 0 +++ [pid 5861] +++ exited with 0 +++ [pid 5078] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5861, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} --- [ 118.527784][ T5867] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 118.537431][ T5867] REISERFS (device loop5): using ordered data mode [ 118.537915][ T5862] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 118.544402][ T5867] reiserfs: using flush barriers [pid 5078] umount2("./43", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5078] openat(AT_FDCWD, "./43", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5078] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5078] umount2("./43/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5078] lstat("./43/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5078] unlink("./43/binderfs") = 0 [pid 5078] umount2("./43/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5870] <... write resumed>) = 4194304 [ 118.574123][ T5867] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 118.590302][ T5859] REISERFS (device loop3): Using r5 hash to sort names [ 118.590594][ T5859] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 118.598791][ T5866] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5859] <... mount resumed>) = 0 [pid 5870] munmap(0x7fdb6a513000, 4194304 [pid 5859] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5859] chdir("./file0") = 0 [pid 5859] ioctl(4, LOOP_CLR_FD) = 0 [pid 5859] close(4 [pid 5870] <... munmap resumed>) = 0 [pid 5870] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5870] ioctl(4, LOOP_SET_FD, 3 [pid 5859] <... close resumed>) = 0 [pid 5859] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5858] <... futex resumed>) = 0 [pid 5858] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5858] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5859] <... futex resumed>) = 1 [pid 5859] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 5859] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5858] <... futex resumed>) = 0 [pid 5858] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5858] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5859] <... futex resumed>) = 1 [pid 5859] ioctl(4, FS_IOC_GETVERSION, 0x20000080) = 0 [pid 5859] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5858] <... futex resumed>) = 0 [pid 5858] exit_group(0) = ? [pid 5859] <... futex resumed>) = ? [pid 5859] +++ exited with 0 +++ [pid 5858] +++ exited with 0 +++ [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5858, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=17 /* 0.17 s */} --- [pid 5077] umount2("./43", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] openat(AT_FDCWD, "./43", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5077] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5077] umount2("./43/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] lstat("./43/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] unlink("./43/binderfs") = 0 [pid 5077] umount2("./43/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5870] <... ioctl resumed>) = 0 [ 118.641619][ T5866] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 118.664978][ T5867] REISERFS (device loop5): checking transaction log (loop5) [ 118.666557][ T5870] loop1: detected capacity change from 0 to 8192 [pid 5870] close(3) = 0 [pid 5870] mkdir("./file0", 0777) = 0 [ 118.703598][ T5866] REISERFS (device loop0): using ordered data mode [pid 5870] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5076] <... umount2 resumed>) = 0 [pid 5076] umount2("./42/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5076] lstat("./42/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] umount2("./42/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5076] openat(AT_FDCWD, "./42/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5076] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [ 118.751017][ T5866] reiserfs: using flush barriers [ 118.757363][ T5870] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5076] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5076] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5076] close(4) = 0 [pid 5076] rmdir("./42/file0") = 0 [pid 5076] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5076] close(3) = 0 [pid 5076] rmdir("./42") = 0 [ 118.802652][ T5866] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 118.810729][ T5870] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 118.832501][ T5870] REISERFS (device loop1): using ordered data mode [ 118.840688][ T5870] reiserfs: using flush barriers [pid 5076] mkdir("./43", 0777) = 0 [pid 5076] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5076] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5076] close(3) = 0 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5874 ./strace-static-x86_64: Process 5874 attached [pid 5874] set_robust_list(0x5555571745e0, 24) = 0 [pid 5874] chdir("./43") = 0 [pid 5874] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5874] setpgid(0, 0) = 0 [ 118.851457][ T5870] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 118.868639][ T5870] REISERFS (device loop1): checking transaction log (loop1) [pid 5874] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5078] <... umount2 resumed>) = 0 [pid 5874] write(3, "1000", 4 [pid 5078] umount2("./43/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5874] <... write resumed>) = 4 [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] close(3 [pid 5078] lstat("./43/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5874] <... close resumed>) = 0 [pid 5874] symlink("/dev/binderfs", "./binderfs" [pid 5078] umount2("./43/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5874] <... symlink resumed>) = 0 [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] openat(AT_FDCWD, "./43/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5874] <... futex resumed>) = 0 [pid 5078] <... openat resumed>) = 4 [pid 5874] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5078] fstat(4, [pid 5874] <... mmap resumed>) = 0x7fdb72913000 [pid 5078] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5874] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5078] getdents64(4, [pid 5874] <... mprotect resumed>) = 0 [pid 5078] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5874] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5078] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5874] <... clone resumed>, parent_tid=[5875], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5875 [pid 5078] close(4 [pid 5874] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] <... close resumed>) = 0 [pid 5874] <... futex resumed>) = 0 [pid 5078] rmdir("./43/file0" [pid 5874] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5078] <... rmdir resumed>) = 0 [pid 5078] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5078] close(3) = 0 [pid 5078] rmdir("./43") = 0 ./strace-static-x86_64: Process 5875 attached [pid 5078] mkdir("./44", 0777 [pid 5875] set_robust_list(0x7fdb729339e0, 24 [pid 5078] <... mkdir resumed>) = 0 [pid 5875] <... set_robust_list resumed>) = 0 [ 118.903777][ T5866] REISERFS (device loop0): checking transaction log (loop0) [pid 5078] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5875] memfd_create("syzkaller", 0) = 3 [pid 5078] <... openat resumed>) = 3 [pid 5875] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5078] ioctl(3, LOOP_CLR_FD [pid 5875] <... mmap resumed>) = 0x7fdb6a513000 [pid 5077] <... umount2 resumed>) = 0 [pid 5078] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5077] umount2("./43/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] lstat("./43/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] umount2("./43/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5078] close(3) = 0 [pid 5077] openat(AT_FDCWD, "./43/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5078] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] <... openat resumed>) = 4 [pid 5077] fstat(4, [pid 5078] <... clone resumed>, child_tidptr=0x5555571745d0) = 5876 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] getdents64(4, [pid 5867] <... mount resumed>) = 0 [pid 5077] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5867] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5077] getdents64(4, ./strace-static-x86_64: Process 5876 attached [pid 5867] <... openat resumed>) = 3 [pid 5077] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5876] set_robust_list(0x5555571745e0, 24 [pid 5867] chdir("./file0" [pid 5077] close(4 [pid 5876] <... set_robust_list resumed>) = 0 [pid 5867] <... chdir resumed>) = 0 [pid 5077] <... close resumed>) = 0 [pid 5876] chdir("./44" [ 118.984061][ T5867] REISERFS (device loop5): Using r5 hash to sort names [ 119.004347][ T5867] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 5867] ioctl(4, LOOP_CLR_FD [pid 5077] rmdir("./43/file0" [pid 5876] <... chdir resumed>) = 0 [pid 5077] <... rmdir resumed>) = 0 [pid 5876] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5077] getdents64(3, [pid 5876] <... prctl resumed>) = 0 [pid 5077] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5876] setpgid(0, 0 [pid 5077] close(3 [pid 5876] <... setpgid resumed>) = 0 [pid 5077] <... close resumed>) = 0 [pid 5867] <... ioctl resumed>) = 0 [pid 5876] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5875] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5077] rmdir("./43" [pid 5876] <... openat resumed>) = 3 [pid 5077] <... rmdir resumed>) = 0 [pid 5876] write(3, "1000", 4 [pid 5077] mkdir("./44", 0777 [pid 5876] <... write resumed>) = 4 [pid 5077] <... mkdir resumed>) = 0 [pid 5876] close(3 [pid 5077] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5876] <... close resumed>) = 0 [pid 5867] close(4 [pid 5077] <... openat resumed>) = 3 [pid 5876] symlink("/dev/binderfs", "./binderfs" [pid 5077] ioctl(3, LOOP_CLR_FD [pid 5876] <... symlink resumed>) = 0 [pid 5077] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5876] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] close(3 [pid 5876] <... futex resumed>) = 0 [pid 5870] <... mount resumed>) = 0 [pid 5867] <... close resumed>) = 0 [pid 5077] <... close resumed>) = 0 [pid 5876] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5870] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5867] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5876] <... mmap resumed>) = 0x7fdb72913000 [pid 5875] <... write resumed>) = 4194304 [pid 5870] <... openat resumed>) = 3 [pid 5867] <... futex resumed>) = 1 [pid 5863] <... futex resumed>) = 0 [ 119.060399][ T5870] REISERFS (device loop1): Using r5 hash to sort names [ 119.068124][ T5870] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. ./strace-static-x86_64: Process 5877 attached [pid 5876] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5875] munmap(0x7fdb6a513000, 4194304 [pid 5870] chdir("./file0" [pid 5867] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5863] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5877] set_robust_list(0x5555571745e0, 24 [pid 5875] <... munmap resumed>) = 0 [pid 5867] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5863] <... futex resumed>) = 0 [pid 5877] <... set_robust_list resumed>) = 0 [pid 5876] <... mprotect resumed>) = 0 [pid 5875] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5867] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5863] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5877] chdir("./44" [pid 5876] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5875] <... openat resumed>) = 4 [pid 5867] <... open resumed>) = 4 [pid 5077] <... clone resumed>, child_tidptr=0x5555571745d0) = 5877 [pid 5877] <... chdir resumed>) = 0 [pid 5875] ioctl(4, LOOP_SET_FD, 3 [pid 5867] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5877] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5870] <... chdir resumed>) = 0 [pid 5876] <... clone resumed>, parent_tid=[5878], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5878 [pid 5870] ioctl(4, LOOP_CLR_FD [pid 5877] <... prctl resumed>) = 0 [pid 5876] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5875] <... ioctl resumed>) = 0 [pid 5870] <... ioctl resumed>) = 0 [pid 5867] <... futex resumed>) = 1 [pid 5863] <... futex resumed>) = 0 ./strace-static-x86_64: Process 5878 attached [pid 5877] setpgid(0, 0 [pid 5876] <... futex resumed>) = 0 [pid 5875] close(3 [pid 5870] close(4 [pid 5867] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5863] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5878] set_robust_list(0x7fdb729339e0, 24 [pid 5877] <... setpgid resumed>) = 0 [pid 5875] <... close resumed>) = 0 [pid 5867] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5863] <... futex resumed>) = 0 [pid 5878] <... set_robust_list resumed>) = 0 [pid 5877] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5876] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5875] mkdir("./file0", 0777 [pid 5870] <... close resumed>) = 0 [pid 5867] ioctl(4, FS_IOC_GETVERSION [pid 5863] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5878] memfd_create("syzkaller", 0 [pid 5877] <... openat resumed>) = 3 [pid 5875] <... mkdir resumed>) = 0 [pid 5867] <... ioctl resumed>, 0x20000080) = 0 [pid 5870] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5878] <... memfd_create resumed>) = 3 [pid 5877] write(3, "1000", 4 [pid 5875] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5867] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5868] <... futex resumed>) = 0 [pid 5870] <... futex resumed>) = 1 [pid 5878] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5877] <... write resumed>) = 4 [pid 5870] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5868] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5867] <... futex resumed>) = 1 [pid 5863] <... futex resumed>) = 0 [pid 5878] <... mmap resumed>) = 0x7fdb6a513000 [pid 5877] close(3 [pid 5868] <... futex resumed>) = 0 [pid 5867] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5863] exit_group(0 [pid 5877] <... close resumed>) = 0 [pid 5870] <... open resumed>) = 4 [pid 5868] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5867] <... futex resumed>) = ? [pid 5863] <... exit_group resumed>) = ? [pid 5877] symlink("/dev/binderfs", "./binderfs" [pid 5870] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5867] +++ exited with 0 +++ [pid 5863] +++ exited with 0 +++ [pid 5877] <... symlink resumed>) = 0 [pid 5877] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5870] <... futex resumed>) = 1 [pid 5868] <... futex resumed>) = 0 [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5863, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=21 /* 0.21 s */} --- [pid 5877] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5870] ioctl(4, FS_IOC_GETVERSION [pid 5868] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] umount2("./42", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5877] <... mmap resumed>) = 0x7fdb72913000 [pid 5868] <... futex resumed>) = 0 [pid 5877] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5870] <... ioctl resumed>, 0x20000080) = 0 [pid 5868] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5877] <... mprotect resumed>) = 0 [pid 5870] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5868] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5079] openat(AT_FDCWD, "./42", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5877] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5870] <... futex resumed>) = 0 [pid 5868] exit_group(0) = ? [pid 5079] <... openat resumed>) = 3 [pid 5877] <... clone resumed>, parent_tid=[5880], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5880 [pid 5877] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] fstat(3, [pid 5877] <... futex resumed>) = 0 [pid 5877] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5870] +++ exited with 0 +++ [pid 5868] +++ exited with 0 +++ [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] getdents64(3, [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5868, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=20 /* 0.20 s */} --- ./strace-static-x86_64: Process 5880 attached [pid 5079] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5079] umount2("./42/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5880] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5079] lstat("./42/binderfs", [pid 5075] umount2("./42", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5880] memfd_create("syzkaller", 0 [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5880] <... memfd_create resumed>) = 3 [pid 5079] unlink("./42/binderfs" [pid 5075] openat(AT_FDCWD, "./42", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5880] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [pid 5079] <... unlink resumed>) = 0 [pid 5075] <... openat resumed>) = 3 [pid 5079] umount2("./42/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [ 119.123282][ T5875] loop2: detected capacity change from 0 to 8192 [pid 5075] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5075] umount2("./42/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5075] lstat("./42/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] unlink("./42/binderfs") = 0 [pid 5075] umount2("./42/file0", MNT_DETACH|UMOUNT_NOFOLLOW [ 119.184137][ T5875] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 119.216970][ T5875] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [pid 5878] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304) = 4194304 [pid 5878] munmap(0x7fdb6a513000, 4194304) = 0 [ 119.266381][ T5875] REISERFS (device loop2): using ordered data mode [ 119.274394][ T5875] reiserfs: using flush barriers [ 119.283465][ T5866] REISERFS (device loop0): Using r5 hash to sort names [ 119.284135][ T5875] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 119.291371][ T5866] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5878] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5878] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5878] close(3) = 0 [pid 5878] mkdir("./file0", 0777) = 0 [pid 5878] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5075] <... umount2 resumed>) = 0 [pid 5075] umount2("./42/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5880] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] lstat("./42/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [ 119.317063][ T5878] loop4: detected capacity change from 0 to 8192 [ 119.343064][ T5878] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 119.359243][ T5875] REISERFS (device loop2): checking transaction log (loop2) [pid 5075] umount2("./42/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5075] openat(AT_FDCWD, "./42/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5075] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5075] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [ 119.367191][ T5878] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [pid 5075] close(4) = 0 [pid 5075] rmdir("./42/file0" [pid 5866] <... mount resumed>) = 0 [pid 5075] <... rmdir resumed>) = 0 [pid 5866] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5075] getdents64(3, [pid 5866] <... openat resumed>) = 3 [pid 5866] chdir("./file0" [pid 5075] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5866] <... chdir resumed>) = 0 [pid 5075] close(3 [pid 5866] ioctl(4, LOOP_CLR_FD [pid 5075] <... close resumed>) = 0 [pid 5866] <... ioctl resumed>) = 0 [pid 5075] rmdir("./42" [pid 5866] close(4 [pid 5075] <... rmdir resumed>) = 0 [pid 5866] <... close resumed>) = 0 [pid 5866] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5075] mkdir("./43", 0777 [pid 5866] <... futex resumed>) = 1 [pid 5864] <... futex resumed>) = 0 [pid 5075] <... mkdir resumed>) = 0 [pid 5866] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [ 119.409712][ T5878] REISERFS (device loop4): using ordered data mode [ 119.428111][ T5878] reiserfs: using flush barriers [pid 5864] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5075] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5866] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5864] <... futex resumed>) = 0 [pid 5079] <... umount2 resumed>) = 0 [pid 5079] umount2("./42/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] lstat("./42/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] <... openat resumed>) = 3 [pid 5866] <... open resumed>) = 4 [pid 5864] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5079] umount2("./42/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] ioctl(3, LOOP_CLR_FD [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./42/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5079] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5079] getdents64(4, [pid 5866] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5864] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5079] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5075] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5866] <... futex resumed>) = 0 [pid 5864] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] close(4 [pid 5866] ioctl(4, FS_IOC_GETVERSION [pid 5864] <... futex resumed>) = 0 [pid 5079] <... close resumed>) = 0 [pid 5075] close(3 [pid 5866] <... ioctl resumed>, 0x20000080) = 0 [pid 5864] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5079] rmdir("./42/file0") = 0 [pid 5075] <... close resumed>) = 0 [pid 5866] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5864] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5079] getdents64(3, [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5866] <... futex resumed>) = 0 [pid 5864] exit_group(0 [pid 5079] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5079] close(3 [pid 5880] <... write resumed>) = 4194304 [pid 5864] <... exit_group resumed>) = ? [pid 5079] <... close resumed>) = 0 ./strace-static-x86_64: Process 5882 attached [pid 5866] +++ exited with 0 +++ [pid 5864] +++ exited with 0 +++ [ 119.462694][ T5878] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 119.487624][ T5878] REISERFS (device loop4): checking transaction log (loop4) [pid 5079] rmdir("./42" [pid 5075] <... clone resumed>, child_tidptr=0x5555571745d0) = 5882 [pid 5079] <... rmdir resumed>) = 0 [pid 5079] mkdir("./43", 0777 [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5864, si_uid=0, si_status=0, si_utime=0, si_stime=21 /* 0.21 s */} --- [pid 5079] <... mkdir resumed>) = 0 [pid 5074] restart_syscall(<... resuming interrupted clone ...> [pid 5079] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5074] <... restart_syscall resumed>) = 0 [pid 5079] <... openat resumed>) = 3 [pid 5079] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5074] umount2("./43", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5882] set_robust_list(0x5555571745e0, 24 [pid 5079] close(3 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5882] <... set_robust_list resumed>) = 0 [pid 5079] <... close resumed>) = 0 [pid 5074] openat(AT_FDCWD, "./43", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5880] munmap(0x7fdb6a513000, 4194304 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5074] <... openat resumed>) = 3 [pid 5882] chdir("./43" [pid 5880] <... munmap resumed>) = 0 [pid 5074] fstat(3, [pid 5882] <... chdir resumed>) = 0 [pid 5880] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5079] <... clone resumed>, child_tidptr=0x5555571745d0) = 5883 [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5882] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5880] <... openat resumed>) = 4 [pid 5074] getdents64(3, [pid 5882] <... prctl resumed>) = 0 [pid 5880] ioctl(4, LOOP_SET_FD, 3 [pid 5074] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5882] setpgid(0, 0 [pid 5074] umount2("./43/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5883 attached [pid 5882] <... setpgid resumed>) = 0 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5883] set_robust_list(0x5555571745e0, 24 [pid 5882] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5074] lstat("./43/binderfs", [pid 5883] <... set_robust_list resumed>) = 0 [pid 5882] <... openat resumed>) = 3 [pid 5074] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5883] chdir("./43" [pid 5882] write(3, "1000", 4 [pid 5074] unlink("./43/binderfs" [pid 5883] <... chdir resumed>) = 0 [pid 5882] <... write resumed>) = 4 [pid 5074] <... unlink resumed>) = 0 [pid 5883] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5882] close(3 [pid 5074] umount2("./43/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5883] <... prctl resumed>) = 0 [pid 5882] <... close resumed>) = 0 [pid 5883] setpgid(0, 0 [pid 5882] symlink("/dev/binderfs", "./binderfs" [pid 5883] <... setpgid resumed>) = 0 [pid 5883] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5882] <... symlink resumed>) = 0 [pid 5875] <... mount resumed>) = 0 [pid 5883] write(3, "1000", 4) = 4 [pid 5883] close(3 [pid 5880] <... ioctl resumed>) = 0 [pid 5883] <... close resumed>) = 0 [pid 5882] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5880] close(3 [pid 5883] symlink("/dev/binderfs", "./binderfs" [pid 5882] <... futex resumed>) = 0 [pid 5883] <... symlink resumed>) = 0 [pid 5880] <... close resumed>) = 0 [pid 5883] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5882] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5880] mkdir("./file0", 0777 [pid 5875] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5883] <... futex resumed>) = 0 [pid 5882] <... mmap resumed>) = 0x7fdb72913000 [pid 5880] <... mkdir resumed>) = 0 [pid 5883] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5882] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5880] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5875] <... openat resumed>) = 3 [pid 5883] <... mmap resumed>) = 0x7fdb72913000 [pid 5882] <... mprotect resumed>) = 0 [pid 5875] chdir("./file0" [pid 5883] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5882] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5875] <... chdir resumed>) = 0 [pid 5883] <... mprotect resumed>) = 0 [pid 5875] ioctl(4, LOOP_CLR_FD [pid 5883] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5882] <... clone resumed>, parent_tid=[5885], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5885 [pid 5875] <... ioctl resumed>) = 0 [pid 5882] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5875] close(4 [pid 5883] <... clone resumed>, parent_tid=[5886], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5886 [pid 5882] <... futex resumed>) = 0 [pid 5883] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 119.541119][ T5875] REISERFS (device loop2): Using r5 hash to sort names [ 119.559793][ T5880] loop3: detected capacity change from 0 to 8192 [ 119.565351][ T5875] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 5883] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5882] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5886 attached [pid 5886] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5886] memfd_create("syzkaller", 0) = 3 [pid 5886] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [pid 5875] <... close resumed>) = 0 [pid 5875] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5874] <... futex resumed>) = 0 [pid 5875] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5874] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5875] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5874] <... futex resumed>) = 0 [pid 5875] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5874] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5875] <... open resumed>) = 4 [pid 5875] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5874] <... futex resumed>) = 0 [pid 5875] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5874] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 5885 attached [pid 5875] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5874] <... futex resumed>) = 0 [pid 5885] set_robust_list(0x7fdb729339e0, 24 [pid 5875] ioctl(4, FS_IOC_GETVERSION [pid 5874] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5885] <... set_robust_list resumed>) = 0 [pid 5875] <... ioctl resumed>, 0x20000080) = 0 [pid 5875] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5874] <... futex resumed>) = 0 [pid 5875] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5874] exit_group(0 [pid 5875] <... futex resumed>) = ? [pid 5874] <... exit_group resumed>) = ? [pid 5875] +++ exited with 0 +++ [pid 5874] +++ exited with 0 +++ [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5874, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} --- [pid 5076] umount2("./43", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5885] memfd_create("syzkaller", 0 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] openat(AT_FDCWD, "./43", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5885] <... memfd_create resumed>) = 3 [pid 5076] <... openat resumed>) = 3 [pid 5885] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5076] fstat(3, [pid 5885] <... mmap resumed>) = 0x7fdb6a513000 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5076] umount2("./43/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5076] lstat("./43/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] unlink("./43/binderfs") = 0 [ 119.613867][ T5880] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5076] umount2("./43/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5886] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5878] <... mount resumed>) = 0 [pid 5878] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5878] chdir("./file0") = 0 [pid 5878] ioctl(4, LOOP_CLR_FD) = 0 [ 119.691046][ T5880] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 119.711486][ T5878] REISERFS (device loop4): Using r5 hash to sort names [ 119.719165][ T5878] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 119.729807][ T5880] REISERFS (device loop3): using ordered data mode [pid 5878] close(4) = 0 [pid 5878] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5876] <... futex resumed>) = 0 [pid 5878] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5876] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5878] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5876] <... futex resumed>) = 0 [pid 5878] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5876] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5878] <... open resumed>) = 4 [pid 5878] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5876] <... futex resumed>) = 0 [pid 5878] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5876] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5878] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5876] <... futex resumed>) = 0 [pid 5074] <... umount2 resumed>) = 0 [pid 5878] ioctl(4, FS_IOC_GETVERSION [pid 5876] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5074] umount2("./43/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5878] <... ioctl resumed>, 0x20000080) = 0 [ 119.737076][ T5880] reiserfs: using flush barriers [ 119.744309][ T5880] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 119.761082][ T5880] REISERFS (device loop3): checking transaction log (loop3) [pid 5878] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5878] <... futex resumed>) = 1 [pid 5876] <... futex resumed>) = 0 [pid 5074] lstat("./43/file0", [pid 5878] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5876] exit_group(0 [pid 5878] <... futex resumed>) = ? [pid 5876] <... exit_group resumed>) = ? [pid 5074] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5878] +++ exited with 0 +++ [pid 5876] +++ exited with 0 +++ [pid 5078] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5876, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} --- [pid 5078] restart_syscall(<... resuming interrupted clone ...> [pid 5074] umount2("./43/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5078] <... restart_syscall resumed>) = 0 [pid 5885] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5078] umount2("./44", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] openat(AT_FDCWD, "./43/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5078] openat(AT_FDCWD, "./44", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5074] <... openat resumed>) = 4 [pid 5078] <... openat resumed>) = 3 [pid 5074] fstat(4, [pid 5078] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5074] getdents64(4, [pid 5078] umount2("./44/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5078] lstat("./44/binderfs", [pid 5074] getdents64(4, [pid 5078] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5074] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5078] unlink("./44/binderfs" [pid 5074] close(4 [pid 5078] <... unlink resumed>) = 0 [pid 5078] umount2("./44/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] <... close resumed>) = 0 [pid 5074] rmdir("./43/file0") = 0 [pid 5074] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5074] close(3) = 0 [pid 5074] rmdir("./43") = 0 [pid 5074] mkdir("./44", 0777) = 0 [pid 5074] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5074] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5074] close(3) = 0 [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5887 ./strace-static-x86_64: Process 5887 attached [pid 5887] set_robust_list(0x5555571745e0, 24) = 0 [pid 5887] chdir("./44") = 0 [pid 5886] <... write resumed>) = 4194304 [pid 5076] <... umount2 resumed>) = 0 [pid 5887] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5886] munmap(0x7fdb6a513000, 4194304 [pid 5880] <... mount resumed>) = 0 [pid 5076] umount2("./43/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5887] <... prctl resumed>) = 0 [pid 5886] <... munmap resumed>) = 0 [pid 5880] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5887] setpgid(0, 0 [pid 5886] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5880] <... openat resumed>) = 3 [pid 5078] <... umount2 resumed>) = 0 [pid 5076] lstat("./43/file0", [pid 5886] <... openat resumed>) = 4 [pid 5880] chdir("./file0" [pid 5078] umount2("./44/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [ 119.952667][ T5880] REISERFS (device loop3): Using r5 hash to sort names [ 119.966736][ T5880] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [pid 5886] ioctl(4, LOOP_SET_FD, 3 [pid 5880] <... chdir resumed>) = 0 [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] umount2("./43/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5887] <... setpgid resumed>) = 0 [pid 5886] <... ioctl resumed>) = 0 [pid 5885] <... write resumed>) = 4194304 [pid 5880] ioctl(4, LOOP_CLR_FD [pid 5078] lstat("./44/file0", [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5887] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5886] close(3 [pid 5880] <... ioctl resumed>) = 0 [pid 5078] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] openat(AT_FDCWD, "./43/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5886] <... close resumed>) = 0 [pid 5880] close(4 [pid 5078] umount2("./44/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... openat resumed>) = 4 [pid 5887] <... openat resumed>) = 3 [pid 5885] munmap(0x7fdb6a513000, 4194304 [pid 5880] <... close resumed>) = 0 [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] fstat(4, [pid 5887] write(3, "1000", 4 [pid 5886] mkdir("./file0", 0777 [pid 5885] <... munmap resumed>) = 0 [pid 5880] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] openat(AT_FDCWD, "./44/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5887] <... write resumed>) = 4 [pid 5885] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5880] <... futex resumed>) = 1 [pid 5877] <... futex resumed>) = 0 [pid 5078] <... openat resumed>) = 4 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5887] close(3 [pid 5886] <... mkdir resumed>) = 0 [pid 5885] <... openat resumed>) = 4 [pid 5880] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5877] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] fstat(4, [pid 5076] getdents64(4, [pid 5887] <... close resumed>) = 0 [pid 5885] ioctl(4, LOOP_SET_FD, 3 [pid 5880] <... open resumed>) = 4 [pid 5877] <... futex resumed>) = 0 [pid 5078] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5887] symlink("/dev/binderfs", "./binderfs" [pid 5886] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5885] <... ioctl resumed>) = 0 [pid 5880] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5877] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5078] getdents64(4, [pid 5076] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5887] <... symlink resumed>) = 0 [pid 5880] <... futex resumed>) = 0 [pid 5877] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5078] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5076] getdents64(4, [pid 5887] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5887] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5887] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5887] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5889], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5889 [pid 5885] close(3 [ 120.005807][ T5886] loop5: detected capacity change from 0 to 8192 [ 120.034333][ T5885] loop1: detected capacity change from 0 to 8192 [pid 5887] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5885] <... close resumed>) = 0 [pid 5887] <... futex resumed>) = 0 [pid 5885] mkdir("./file0", 0777 [pid 5887] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5885] <... mkdir resumed>) = 0 [pid 5885] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5880] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5877] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] getdents64(4, [pid 5076] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 5889 attached [pid 5889] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5889] memfd_create("syzkaller", 0) = 3 [pid 5889] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [pid 5880] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5877] <... futex resumed>) = 0 [pid 5078] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5076] close(4 [pid 5880] ioctl(4, FS_IOC_GETVERSION [pid 5877] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5078] close(4 [pid 5076] <... close resumed>) = 0 [pid 5880] <... ioctl resumed>, 0x20000080) = 0 [pid 5880] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] <... close resumed>) = 0 [pid 5076] rmdir("./43/file0" [pid 5880] <... futex resumed>) = 1 [pid 5877] <... futex resumed>) = 0 [ 120.047205][ T5886] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 120.061013][ T5886] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 120.070956][ T5886] REISERFS (device loop5): using ordered data mode [ 120.078610][ T5886] reiserfs: using flush barriers [ 120.085225][ T5885] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5078] rmdir("./44/file0" [pid 5880] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5877] exit_group(0 [pid 5078] <... rmdir resumed>) = 0 [pid 5076] <... rmdir resumed>) = 0 [ 120.094856][ T5886] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 120.101059][ T5885] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 120.126484][ T5885] REISERFS (device loop1): using ordered data mode [ 120.133984][ T5885] reiserfs: using flush barriers [ 120.136807][ T5886] REISERFS (device loop5): checking transaction log (loop5) [pid 5889] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5880] <... futex resumed>) = ? [pid 5877] <... exit_group resumed>) = ? [pid 5078] getdents64(3, [pid 5076] getdents64(3, [pid 5880] +++ exited with 0 +++ [pid 5877] +++ exited with 0 +++ [pid 5078] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5076] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5078] close(3 [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5877, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=19 /* 0.19 s */} --- [pid 5076] close(3 [pid 5078] <... close resumed>) = 0 [pid 5076] <... close resumed>) = 0 [pid 5076] rmdir("./43" [pid 5078] rmdir("./44" [pid 5076] <... rmdir resumed>) = 0 [pid 5078] <... rmdir resumed>) = 0 [pid 5078] mkdir("./45", 0777 [pid 5076] mkdir("./44", 0777 [pid 5078] <... mkdir resumed>) = 0 [pid 5077] umount2("./44", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... mkdir resumed>) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5078] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5076] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5077] openat(AT_FDCWD, "./44", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5078] <... openat resumed>) = 3 [pid 5077] <... openat resumed>) = 3 [pid 5078] ioctl(3, LOOP_CLR_FD [pid 5076] <... openat resumed>) = 3 [pid 5077] fstat(3, [pid 5078] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] close(3 [pid 5076] ioctl(3, LOOP_CLR_FD [pid 5077] getdents64(3, [pid 5076] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5078] <... close resumed>) = 0 [pid 5077] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5078] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] umount2("./44/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] close(3 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5078] <... clone resumed>, child_tidptr=0x5555571745d0) = 5891 [pid 5077] lstat("./44/binderfs", [pid 5076] <... close resumed>) = 0 [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] unlink("./44/binderfs") = 0 [pid 5077] umount2("./44/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... clone resumed>, child_tidptr=0x5555571745d0) = 5892 ./strace-static-x86_64: Process 5891 attached [pid 5891] set_robust_list(0x5555571745e0, 24) = 0 [pid 5891] chdir("./45") = 0 [pid 5891] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5891] setpgid(0, 0) = 0 [pid 5891] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5891] write(3, "1000", 4) = 4 [ 120.145266][ T5885] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 120.167113][ T5885] REISERFS (device loop1): checking transaction log (loop1) [pid 5891] close(3./strace-static-x86_64: Process 5892 attached ) = 0 [pid 5891] symlink("/dev/binderfs", "./binderfs" [pid 5892] set_robust_list(0x5555571745e0, 24 [pid 5891] <... symlink resumed>) = 0 [pid 5892] <... set_robust_list resumed>) = 0 [pid 5891] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5892] chdir("./44" [pid 5891] <... futex resumed>) = 0 [pid 5891] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5891] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5891] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5892] <... chdir resumed>) = 0 [pid 5891] <... clone resumed>, parent_tid=[5893], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5893 [pid 5891] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5891] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5893 attached [pid 5892] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5892] setpgid(0, 0) = 0 [pid 5893] set_robust_list(0x7fdb729339e0, 24 [pid 5892] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5893] <... set_robust_list resumed>) = 0 [pid 5892] <... openat resumed>) = 3 [pid 5893] memfd_create("syzkaller", 0 [pid 5892] write(3, "1000", 4) = 4 [pid 5892] close(3) = 0 [pid 5892] symlink("/dev/binderfs", "./binderfs" [pid 5893] <... memfd_create resumed>) = 3 [pid 5892] <... symlink resumed>) = 0 [pid 5893] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5892] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5893] <... mmap resumed>) = 0x7fdb6a513000 [pid 5892] <... futex resumed>) = 0 [pid 5889] <... write resumed>) = 4194304 [pid 5892] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5892] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5889] munmap(0x7fdb6a513000, 4194304 [pid 5892] <... mprotect resumed>) = 0 [pid 5892] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5889] <... munmap resumed>) = 0 [pid 5892] <... clone resumed>, parent_tid=[5894], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5894 [pid 5892] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5889] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5892] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5894 attached [pid 5889] <... openat resumed>) = 4 [pid 5894] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5889] ioctl(4, LOOP_SET_FD, 3 [pid 5894] memfd_create("syzkaller", 0) = 3 [pid 5889] <... ioctl resumed>) = 0 [pid 5889] close(3) = 0 [pid 5889] mkdir("./file0", 0777) = 0 [pid 5889] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5894] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [ 120.307821][ T5889] loop0: detected capacity change from 0 to 8192 [ 120.338645][ T5889] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5893] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5077] <... umount2 resumed>) = 0 [pid 5894] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5077] umount2("./44/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] lstat("./44/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] umount2("./44/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] openat(AT_FDCWD, "./44/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5077] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5077] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5077] close(4) = 0 [pid 5885] <... mount resumed>) = 0 [pid 5077] rmdir("./44/file0" [pid 5885] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5077] <... rmdir resumed>) = 0 [pid 5885] <... openat resumed>) = 3 [pid 5077] getdents64(3, [pid 5885] chdir("./file0" [pid 5077] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5077] close(3) = 0 [ 120.388657][ T5885] REISERFS (device loop1): Using r5 hash to sort names [ 120.407023][ T5889] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 120.407819][ T5885] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [pid 5077] rmdir("./44" [pid 5885] <... chdir resumed>) = 0 [pid 5077] <... rmdir resumed>) = 0 [pid 5077] mkdir("./45", 0777 [pid 5885] ioctl(4, LOOP_CLR_FD [pid 5077] <... mkdir resumed>) = 0 [pid 5077] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5885] <... ioctl resumed>) = 0 [pid 5077] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5885] close(4 [pid 5077] close(3 [pid 5893] <... write resumed>) = 4194304 [pid 5893] munmap(0x7fdb6a513000, 4194304) = 0 [pid 5893] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5893] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5893] close(3) = 0 [pid 5893] mkdir("./file0", 0777) = 0 [pid 5077] <... close resumed>) = 0 [pid 5885] <... close resumed>) = 0 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5893] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5885] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5882] <... futex resumed>) = 0 [pid 5077] <... clone resumed>, child_tidptr=0x5555571745d0) = 5896 [pid 5885] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5882] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5882] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5885] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5885] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000./strace-static-x86_64: Process 5896 attached [pid 5896] set_robust_list(0x5555571745e0, 24 [pid 5885] <... open resumed>) = 4 [pid 5885] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5882] <... futex resumed>) = 0 [pid 5896] <... set_robust_list resumed>) = 0 [pid 5882] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5896] chdir("./45" [pid 5885] ioctl(4, FS_IOC_GETVERSION [pid 5882] <... futex resumed>) = 0 [ 120.443634][ T5889] REISERFS (device loop0): using ordered data mode [ 120.451606][ T5889] reiserfs: using flush barriers [ 120.478886][ T5893] loop4: detected capacity change from 0 to 8192 [pid 5896] <... chdir resumed>) = 0 [pid 5885] <... ioctl resumed>, 0x20000080) = 0 [pid 5882] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5885] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5882] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5885] <... futex resumed>) = 0 [pid 5882] exit_group(0) = ? [pid 5896] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5885] +++ exited with 0 +++ [pid 5882] +++ exited with 0 +++ [pid 5896] <... prctl resumed>) = 0 [pid 5896] setpgid(0, 0) = 0 [pid 5896] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5896] write(3, "1000", 4) = 4 [pid 5896] close(3) = 0 [pid 5896] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5896] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5896] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [ 120.504837][ T5893] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 120.524564][ T5889] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 120.541087][ T5893] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [pid 5896] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5882, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} --- [pid 5896] <... mprotect resumed>) = 0 [pid 5896] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5898], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5898 [pid 5896] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5896] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5898 attached [pid 5898] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5898] memfd_create("syzkaller", 0 [pid 5075] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5075] umount2("./43", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5075] openat(AT_FDCWD, "./43", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5898] <... memfd_create resumed>) = 3 [pid 5075] <... openat resumed>) = 3 [pid 5898] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5075] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] getdents64(3, [pid 5898] <... mmap resumed>) = 0x7fdb6a513000 [pid 5894] <... write resumed>) = 4194304 [pid 5075] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5894] munmap(0x7fdb6a513000, 4194304 [pid 5075] umount2("./43/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5894] <... munmap resumed>) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5894] openat(AT_FDCWD, "/dev/loop2", O_RDWR [ 120.553133][ T5893] REISERFS (device loop4): using ordered data mode [ 120.553998][ T5886] REISERFS (device loop5): Using r5 hash to sort names [ 120.560551][ T5893] reiserfs: using flush barriers [ 120.578764][ T5893] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 120.595960][ T5889] REISERFS (device loop0): checking transaction log (loop0) [pid 5075] lstat("./43/binderfs", [pid 5894] <... openat resumed>) = 4 [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5894] ioctl(4, LOOP_SET_FD, 3 [pid 5075] unlink("./43/binderfs" [pid 5894] <... ioctl resumed>) = 0 [pid 5894] close(3 [pid 5886] <... mount resumed>) = 0 [pid 5075] <... unlink resumed>) = 0 [pid 5894] <... close resumed>) = 0 [pid 5886] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5075] umount2("./43/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5886] <... openat resumed>) = 3 [pid 5886] chdir("./file0") = 0 [pid 5886] ioctl(4, LOOP_CLR_FD) = 0 [pid 5886] close(4) = 0 [pid 5886] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5883] <... futex resumed>) = 0 [pid 5883] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5883] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5886] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 5886] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5883] <... futex resumed>) = 0 [pid 5886] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5883] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5886] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5883] <... futex resumed>) = 0 [pid 5886] ioctl(4, FS_IOC_GETVERSION [pid 5883] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5886] <... ioctl resumed>, 0x20000080) = 0 [pid 5886] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5883] <... futex resumed>) = 0 [pid 5886] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5883] exit_group(0 [pid 5886] <... futex resumed>) = ? [pid 5883] <... exit_group resumed>) = ? [pid 5886] +++ exited with 0 +++ [pid 5883] +++ exited with 0 +++ [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5883, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=18 /* 0.18 s */} --- [ 120.615072][ T5886] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 120.625969][ T5894] loop2: detected capacity change from 0 to 8192 [ 120.634607][ T5893] REISERFS (device loop4): checking transaction log (loop4) [pid 5898] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5894] mkdir("./file0", 0777) = 0 [pid 5894] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5079] umount2("./43", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./43", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5079] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5079] umount2("./43/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] lstat("./43/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] unlink("./43/binderfs") = 0 [ 120.715281][ T5894] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 120.743847][ T5894] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 120.753835][ T5894] REISERFS (device loop2): using ordered data mode [ 120.760470][ T5894] reiserfs: using flush barriers [pid 5079] umount2("./43/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... umount2 resumed>) = 0 [pid 5075] umount2("./43/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5075] lstat("./43/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] umount2("./43/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5075] openat(AT_FDCWD, "./43/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5075] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5075] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5075] close(4) = 0 [pid 5075] rmdir("./43/file0") = 0 [pid 5075] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5075] close(3) = 0 [pid 5075] rmdir("./43") = 0 [pid 5075] mkdir("./44", 0777) = 0 [pid 5075] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5075] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5075] close(3) = 0 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5900 ./strace-static-x86_64: Process 5900 attached [pid 5900] set_robust_list(0x5555571745e0, 24) = 0 [pid 5900] chdir("./44") = 0 [pid 5900] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5900] setpgid(0, 0) = 0 [ 120.775895][ T5894] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5900] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5900] write(3, "1000", 4) = 4 [pid 5900] close(3) = 0 [pid 5900] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5900] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5900] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5900] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5900] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5901], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5901 [pid 5900] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5900] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5901 attached [pid 5901] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5901] memfd_create("syzkaller", 0) = 3 [ 120.858130][ T5894] REISERFS (device loop2): checking transaction log (loop2) [ 120.860473][ T5889] REISERFS (device loop0): Using r5 hash to sort names [pid 5901] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5898] <... write resumed>) = 4194304 [pid 5901] <... mmap resumed>) = 0x7fdb6a513000 [pid 5898] munmap(0x7fdb6a513000, 4194304) = 0 [pid 5898] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [ 120.899598][ T5889] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5898] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5898] close(3 [pid 5889] <... mount resumed>) = 0 [pid 5898] <... close resumed>) = 0 [pid 5893] <... mount resumed>) = 0 [pid 5889] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5898] mkdir("./file0", 0777 [pid 5893] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5889] <... openat resumed>) = 3 [pid 5898] <... mkdir resumed>) = 0 [pid 5893] <... openat resumed>) = 3 [pid 5889] chdir("./file0" [pid 5898] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5893] chdir("./file0" [pid 5889] <... chdir resumed>) = 0 [pid 5893] <... chdir resumed>) = 0 [pid 5889] ioctl(4, LOOP_CLR_FD [ 120.944500][ T5898] loop3: detected capacity change from 0 to 8192 [ 120.971141][ T5893] REISERFS (device loop4): Using r5 hash to sort names [ 120.978579][ T5893] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [pid 5893] ioctl(4, LOOP_CLR_FD [pid 5889] <... ioctl resumed>) = 0 [pid 5079] <... umount2 resumed>) = 0 [pid 5901] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5893] <... ioctl resumed>) = 0 [pid 5889] close(4 [pid 5079] umount2("./43/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5893] close(4 [pid 5889] <... close resumed>) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5893] <... close resumed>) = 0 [pid 5889] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] lstat("./43/file0", [pid 5893] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5889] <... futex resumed>) = 1 [pid 5079] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5893] <... futex resumed>) = 1 [pid 5889] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [ 121.002250][ T5898] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 121.034653][ T5898] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [pid 5079] umount2("./43/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5893] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5891] <... futex resumed>) = 0 [pid 5887] <... futex resumed>) = 0 [pid 5079] openat(AT_FDCWD, "./43/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5891] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5887] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] <... openat resumed>) = 4 [pid 5079] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5079] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5079] close(4) = 0 [pid 5079] rmdir("./43/file0") = 0 [pid 5079] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5079] close(3) = 0 [pid 5079] rmdir("./43") = 0 [pid 5079] mkdir("./44", 0777) = 0 [pid 5079] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5893] <... futex resumed>) = 0 [pid 5891] <... futex resumed>) = 1 [pid 5889] <... futex resumed>) = 0 [pid 5887] <... futex resumed>) = 1 [pid 5079] <... openat resumed>) = 3 [pid 5893] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5889] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5079] ioctl(3, LOOP_CLR_FD [pid 5893] <... open resumed>) = 4 [pid 5891] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5889] <... open resumed>) = 4 [pid 5887] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5079] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5893] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5889] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] close(3 [pid 5893] <... futex resumed>) = 0 [pid 5889] <... futex resumed>) = 0 [pid 5079] <... close resumed>) = 0 [pid 5893] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5891] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5889] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5887] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5891] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5887] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] <... clone resumed>, child_tidptr=0x5555571745d0) = 5903 [pid 5891] <... futex resumed>) = 1 [pid 5887] <... futex resumed>) = 1 [pid 5893] <... futex resumed>) = 0 [pid 5889] <... futex resumed>) = 0 [pid 5891] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5887] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5893] ioctl(4, FS_IOC_GETVERSION [pid 5889] ioctl(4, FS_IOC_GETVERSION [pid 5893] <... ioctl resumed>, 0x20000080) = 0 [pid 5889] <... ioctl resumed>, 0x20000080) = 0 [pid 5893] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5889] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5893] <... futex resumed>) = 1 [pid 5891] <... futex resumed>) = 0 [pid 5889] <... futex resumed>) = 1 [pid 5887] <... futex resumed>) = 0 [pid 5893] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5891] exit_group(0 [pid 5889] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5887] exit_group(0 [pid 5893] <... futex resumed>) = ? [pid 5891] <... exit_group resumed>) = ? [pid 5889] <... futex resumed>) = ? [ 121.047593][ T5894] REISERFS (device loop2): Using r5 hash to sort names [ 121.057472][ T5894] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 121.061991][ T5898] REISERFS (device loop3): using ordered data mode [ 121.081467][ T5898] reiserfs: using flush barriers [pid 5887] <... exit_group resumed>) = ? [pid 5893] +++ exited with 0 +++ [pid 5891] +++ exited with 0 +++ [pid 5889] +++ exited with 0 +++ [pid 5887] +++ exited with 0 +++ [pid 5078] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5891, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=16 /* 0.16 s */} --- [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5887, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- [pid 5078] umount2("./45", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5903 attached [pid 5903] set_robust_list(0x5555571745e0, 24) = 0 [pid 5894] <... mount resumed>) = 0 [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5078] openat(AT_FDCWD, "./45", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5894] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5078] <... openat resumed>) = 3 [pid 5078] fstat(3, [pid 5894] <... openat resumed>) = 3 [pid 5078] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] getdents64(3, [pid 5894] chdir("./file0") = 0 [pid 5078] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5894] ioctl(4, LOOP_CLR_FD [pid 5078] umount2("./45/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5894] <... ioctl resumed>) = 0 [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5894] close(4 [pid 5078] lstat("./45/binderfs", [pid 5074] umount2("./44", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5894] <... close resumed>) = 0 [pid 5078] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5894] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] unlink("./45/binderfs" [pid 5074] openat(AT_FDCWD, "./44", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5894] <... futex resumed>) = 1 [pid 5892] <... futex resumed>) = 0 [pid 5078] <... unlink resumed>) = 0 [pid 5074] <... openat resumed>) = 3 [pid 5894] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5892] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] umount2("./45/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] fstat(3, [pid 5894] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5892] <... futex resumed>) = 0 [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5894] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5892] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5074] getdents64(3, [pid 5903] chdir("./44" [pid 5894] <... open resumed>) = 4 [pid 5074] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5903] <... chdir resumed>) = 0 [pid 5894] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5074] umount2("./44/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5903] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5894] <... futex resumed>) = 1 [pid 5892] <... futex resumed>) = 0 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5903] <... prctl resumed>) = 0 [pid 5894] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5892] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5074] lstat("./44/binderfs", [pid 5903] setpgid(0, 0 [pid 5894] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5892] <... futex resumed>) = 0 [pid 5074] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5903] <... setpgid resumed>) = 0 [pid 5894] ioctl(4, FS_IOC_GETVERSION [pid 5892] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5074] unlink("./44/binderfs" [pid 5903] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5894] <... ioctl resumed>, 0x20000080) = 0 [pid 5074] <... unlink resumed>) = 0 [pid 5903] <... openat resumed>) = 3 [pid 5894] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5074] umount2("./44/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5903] write(3, "1000", 4 [pid 5894] <... futex resumed>) = 1 [pid 5892] <... futex resumed>) = 0 [pid 5903] <... write resumed>) = 4 [pid 5903] close(3) = 0 [pid 5903] symlink("/dev/binderfs", "./binderfs" [pid 5894] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [ 121.088739][ T5898] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 121.105926][ T5898] REISERFS (device loop3): checking transaction log (loop3) [pid 5892] exit_group(0 [pid 5078] <... umount2 resumed>) = 0 [pid 5903] <... symlink resumed>) = 0 [pid 5894] <... futex resumed>) = ? [pid 5892] <... exit_group resumed>) = ? [pid 5903] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5894] +++ exited with 0 +++ [pid 5903] <... futex resumed>) = 0 [pid 5892] +++ exited with 0 +++ [pid 5078] umount2("./45/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5903] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5892, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=14 /* 0.14 s */} --- [pid 5903] <... mmap resumed>) = 0x7fdb72913000 [pid 5078] lstat("./45/file0", [pid 5903] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5078] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5903] <... mprotect resumed>) = 0 [pid 5078] umount2("./45/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5903] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] umount2("./44", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5078] openat(AT_FDCWD, "./45/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5904 attached [pid 5903] <... clone resumed>, parent_tid=[5904], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5904 [pid 5078] <... openat resumed>) = 4 [pid 5076] openat(AT_FDCWD, "./44", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5903] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] fstat(4, [pid 5904] set_robust_list(0x7fdb729339e0, 24 [pid 5903] <... futex resumed>) = 0 [pid 5078] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] <... openat resumed>) = 3 [pid 5904] <... set_robust_list resumed>) = 0 [pid 5903] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5078] getdents64(4, [pid 5076] fstat(3, [pid 5904] memfd_create("syzkaller", 0 [pid 5078] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5904] <... memfd_create resumed>) = 3 [pid 5078] getdents64(4, [pid 5076] getdents64(3, [pid 5904] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5078] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5078] close(4 [pid 5076] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5904] <... mmap resumed>) = 0x7fdb6a513000 [pid 5078] <... close resumed>) = 0 [pid 5076] umount2("./44/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5078] rmdir("./45/file0" [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5078] <... rmdir resumed>) = 0 [pid 5076] lstat("./44/binderfs", [pid 5078] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5078] close(3 [pid 5076] unlink("./44/binderfs" [pid 5078] <... close resumed>) = 0 [pid 5076] <... unlink resumed>) = 0 [pid 5078] rmdir("./45" [pid 5076] umount2("./44/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5078] <... rmdir resumed>) = 0 [pid 5078] mkdir("./46", 0777) = 0 [pid 5078] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5901] <... write resumed>) = 4194304 [pid 5901] munmap(0x7fdb6a513000, 4194304 [pid 5074] <... umount2 resumed>) = 0 [pid 5901] <... munmap resumed>) = 0 [pid 5901] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5074] umount2("./44/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5901] ioctl(4, LOOP_SET_FD, 3 [pid 5074] lstat("./44/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] umount2("./44/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] openat(AT_FDCWD, "./44/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5074] fstat(4, [pid 5904] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5901] <... ioctl resumed>) = 0 [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5901] close(3 [pid 5074] getdents64(4, [pid 5901] <... close resumed>) = 0 [pid 5078] <... openat resumed>) = 3 [pid 5901] mkdir("./file0", 0777 [pid 5078] ioctl(3, LOOP_CLR_FD [pid 5074] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5901] <... mkdir resumed>) = 0 [pid 5078] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5074] getdents64(4, [pid 5901] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5078] close(3 [pid 5074] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5078] <... close resumed>) = 0 [ 121.297403][ T5901] loop1: detected capacity change from 0 to 8192 [pid 5078] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5074] close(4 [pid 5078] <... clone resumed>, child_tidptr=0x5555571745d0) = 5906 ./strace-static-x86_64: Process 5906 attached [pid 5906] set_robust_list(0x5555571745e0, 24) = 0 [pid 5906] chdir("./46") = 0 [pid 5906] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5906] setpgid(0, 0) = 0 [pid 5906] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5074] <... close resumed>) = 0 [pid 5906] write(3, "1000", 4 [pid 5074] rmdir("./44/file0" [pid 5906] <... write resumed>) = 4 [pid 5906] close(3 [pid 5074] <... rmdir resumed>) = 0 [pid 5906] <... close resumed>) = 0 [pid 5074] getdents64(3, [pid 5906] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5906] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5906] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5074] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5906] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5074] close(3 [pid 5906] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5076] <... umount2 resumed>) = 0 [pid 5074] <... close resumed>) = 0 [pid 5906] <... clone resumed>, parent_tid=[5907], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5907 [pid 5076] umount2("./44/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] rmdir("./44" [pid 5906] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5906] <... futex resumed>) = 0 [ 121.344080][ T5901] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 121.379206][ T5901] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [pid 5076] lstat("./44/file0", [pid 5074] <... rmdir resumed>) = 0 ./strace-static-x86_64: Process 5907 attached [pid 5906] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5907] set_robust_list(0x7fdb729339e0, 24 [pid 5076] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] mkdir("./45", 0777 [pid 5907] <... set_robust_list resumed>) = 0 [pid 5076] umount2("./44/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5907] memfd_create("syzkaller", 0 [pid 5904] <... write resumed>) = 4194304 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] <... mkdir resumed>) = 0 [pid 5907] <... memfd_create resumed>) = 3 [pid 5904] munmap(0x7fdb6a513000, 4194304 [pid 5076] openat(AT_FDCWD, "./44/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5074] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5907] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5904] <... munmap resumed>) = 0 [pid 5076] <... openat resumed>) = 4 [pid 5074] <... openat resumed>) = 3 [pid 5907] <... mmap resumed>) = 0x7fdb6a513000 [pid 5904] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5076] fstat(4, [pid 5074] ioctl(3, LOOP_CLR_FD [pid 5904] <... openat resumed>) = 4 [pid 5904] ioctl(4, LOOP_SET_FD, 3 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] <... ioctl resumed>) = -1 ENXIO (No such device or address) [ 121.410353][ T5901] REISERFS (device loop1): using ordered data mode [ 121.417732][ T5901] reiserfs: using flush barriers [ 121.426728][ T5901] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 121.450795][ T5898] REISERFS (device loop3): Using r5 hash to sort names [pid 5076] getdents64(4, [pid 5074] close(3 [pid 5904] <... ioctl resumed>) = 0 [pid 5907] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5076] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5074] <... close resumed>) = 0 [pid 5904] close(3 [pid 5898] <... mount resumed>) = 0 [pid 5076] getdents64(4, [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5904] <... close resumed>) = 0 [pid 5898] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5076] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5076] close(4 [pid 5074] <... clone resumed>, child_tidptr=0x5555571745d0) = 5908 [pid 5076] <... close resumed>) = 0 [pid 5076] rmdir("./44/file0" [pid 5904] mkdir("./file0", 0777 [pid 5076] <... rmdir resumed>) = 0 [pid 5076] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5076] close(3) = 0 [pid 5904] <... mkdir resumed>) = 0 [pid 5076] rmdir("./44" [pid 5904] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5898] <... openat resumed>) = 3 [pid 5076] <... rmdir resumed>) = 0 [pid 5076] mkdir("./45", 0777 [pid 5898] chdir("./file0" [pid 5076] <... mkdir resumed>) = 0 [ 121.458435][ T5901] REISERFS (device loop1): checking transaction log (loop1) [ 121.466197][ T5904] loop5: detected capacity change from 0 to 8192 [ 121.473169][ T5898] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [pid 5898] <... chdir resumed>) = 0 [pid 5076] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5898] ioctl(4, LOOP_CLR_FD [pid 5076] <... openat resumed>) = 3 [pid 5898] <... ioctl resumed>) = 0 [pid 5076] ioctl(3, LOOP_CLR_FD [pid 5898] close(4 [pid 5076] <... ioctl resumed>) = -1 ENXIO (No such device or address) ./strace-static-x86_64: Process 5908 attached [pid 5907] <... write resumed>) = 4194304 [pid 5898] <... close resumed>) = 0 [pid 5898] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5896] <... futex resumed>) = 0 [pid 5898] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5896] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5898] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5896] <... futex resumed>) = 0 [pid 5898] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5896] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5908] set_robust_list(0x5555571745e0, 24 [pid 5907] munmap(0x7fdb6a513000, 4194304 [pid 5076] close(3 [pid 5898] <... open resumed>) = 4 [pid 5898] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5896] <... futex resumed>) = 0 [pid 5898] <... futex resumed>) = 1 [pid 5908] <... set_robust_list resumed>) = 0 [pid 5907] <... munmap resumed>) = 0 [pid 5896] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5898] ioctl(4, FS_IOC_GETVERSION [pid 5076] <... close resumed>) = 0 [pid 5908] chdir("./45" [pid 5907] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5898] <... ioctl resumed>, 0x20000080) = 0 [pid 5896] <... futex resumed>) = 0 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5908] <... chdir resumed>) = 0 [pid 5907] <... openat resumed>) = 4 [pid 5898] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5896] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5908] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5907] ioctl(4, LOOP_SET_FD, 3 [pid 5898] <... futex resumed>) = 0 [pid 5896] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5076] <... clone resumed>, child_tidptr=0x5555571745d0) = 5910 [pid 5908] <... prctl resumed>) = 0 [pid 5898] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5896] exit_group(0 [pid 5908] setpgid(0, 0 [pid 5898] <... futex resumed>) = ? [pid 5896] <... exit_group resumed>) = ? [pid 5908] <... setpgid resumed>) = 0 [pid 5898] +++ exited with 0 +++ [pid 5908] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5908] write(3, "1000", 4) = 4 [pid 5896] +++ exited with 0 +++ [pid 5908] close(3 [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5896, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- [pid 5908] <... close resumed>) = 0 [ 121.535003][ T5904] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 121.559114][ T5907] loop4: detected capacity change from 0 to 8192 [ 121.573614][ T5904] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [pid 5908] symlink("/dev/binderfs", "./binderfs" [pid 5077] umount2("./45", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5910 attached [pid 5077] openat(AT_FDCWD, "./45", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5910] set_robust_list(0x5555571745e0, 24 [pid 5908] <... symlink resumed>) = 0 [pid 5077] <... openat resumed>) = 3 [pid 5910] <... set_robust_list resumed>) = 0 [pid 5907] <... ioctl resumed>) = 0 [pid 5077] fstat(3, [pid 5910] chdir("./45" [pid 5908] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5907] close(3 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5910] <... chdir resumed>) = 0 [pid 5908] <... futex resumed>) = 0 [pid 5907] <... close resumed>) = 0 [pid 5077] getdents64(3, [pid 5910] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5908] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5907] mkdir("./file0", 0777 [pid 5077] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5910] <... prctl resumed>) = 0 [pid 5907] <... mkdir resumed>) = 0 [pid 5077] umount2("./45/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5910] setpgid(0, 0 [pid 5907] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5910] <... setpgid resumed>) = 0 [pid 5077] lstat("./45/binderfs", [pid 5910] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5910] <... openat resumed>) = 3 [pid 5077] unlink("./45/binderfs" [pid 5910] write(3, "1000", 4 [pid 5077] <... unlink resumed>) = 0 [pid 5910] <... write resumed>) = 4 [pid 5077] umount2("./45/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5910] close(3) = 0 [pid 5910] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5910] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5910] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5910] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5908] <... mmap resumed>) = 0x7fdb72913000 [pid 5910] <... mprotect resumed>) = 0 [pid 5908] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5910] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5908] <... mprotect resumed>) = 0 [pid 5908] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5910] <... clone resumed>, parent_tid=[5912], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5912 [ 121.583805][ T5904] REISERFS (device loop5): using ordered data mode [ 121.591873][ T5904] reiserfs: using flush barriers [ 121.600707][ T5904] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 121.620192][ T5904] REISERFS (device loop5): checking transaction log (loop5) [pid 5910] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5908] <... clone resumed>, parent_tid=[5913], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5913 ./strace-static-x86_64: Process 5913 attached ./strace-static-x86_64: Process 5912 attached [pid 5908] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5913] set_robust_list(0x7fdb729339e0, 24 [pid 5912] set_robust_list(0x7fdb729339e0, 24 [pid 5908] <... futex resumed>) = 0 [pid 5913] <... set_robust_list resumed>) = 0 [pid 5912] <... set_robust_list resumed>) = 0 [pid 5908] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5913] memfd_create("syzkaller", 0 [pid 5912] memfd_create("syzkaller", 0 [pid 5913] <... memfd_create resumed>) = 3 [pid 5912] <... memfd_create resumed>) = 3 [pid 5913] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5912] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5913] <... mmap resumed>) = 0x7fdb6a513000 [pid 5912] <... mmap resumed>) = 0x7fdb6a513000 [pid 5910] <... futex resumed>) = 0 [ 121.648253][ T5907] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5910] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [ 121.728253][ T5907] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 121.763166][ T5901] REISERFS (device loop1): Using r5 hash to sort names [pid 5913] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5077] <... umount2 resumed>) = 0 [pid 5077] umount2("./45/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] lstat("./45/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] umount2("./45/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5912] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 121.772468][ T5904] REISERFS (device loop5): Using r5 hash to sort names [ 121.790245][ T5907] REISERFS (device loop4): using ordered data mode [ 121.804442][ T5901] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 121.814082][ T5904] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 5077] openat(AT_FDCWD, "./45/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5912] <... write resumed>) = 4194304 [pid 5901] <... mount resumed>) = 0 [pid 5077] <... openat resumed>) = 4 [pid 5912] munmap(0x7fdb6a513000, 4194304 [pid 5901] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5077] fstat(4, [pid 5912] <... munmap resumed>) = 0 [pid 5901] <... openat resumed>) = 3 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5901] chdir("./file0" [pid 5077] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5912] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5901] <... chdir resumed>) = 0 [pid 5077] getdents64(4, [pid 5901] ioctl(4, LOOP_CLR_FD [pid 5077] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5912] <... openat resumed>) = 4 [pid 5901] <... ioctl resumed>) = 0 [pid 5077] close(4 [pid 5912] ioctl(4, LOOP_SET_FD, 3 [pid 5901] close(4 [pid 5077] <... close resumed>) = 0 [pid 5912] <... ioctl resumed>) = 0 [pid 5912] close(3 [pid 5904] <... mount resumed>) = 0 [pid 5901] <... close resumed>) = 0 [pid 5077] rmdir("./45/file0" [pid 5912] <... close resumed>) = 0 [pid 5904] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5901] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] <... rmdir resumed>) = 0 [pid 5901] <... futex resumed>) = 1 [pid 5912] mkdir("./file0", 0777 [pid 5904] <... openat resumed>) = 3 [pid 5901] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5900] <... futex resumed>) = 0 [pid 5077] getdents64(3, [pid 5900] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5912] <... mkdir resumed>) = 0 [pid 5912] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5904] chdir("./file0" [pid 5901] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5900] <... futex resumed>) = 0 [pid 5077] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5901] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5900] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5904] <... chdir resumed>) = 0 [pid 5901] <... open resumed>) = 4 [pid 5077] close(3 [pid 5904] ioctl(4, LOOP_CLR_FD [pid 5901] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] <... close resumed>) = 0 [pid 5904] <... ioctl resumed>) = 0 [pid 5901] <... futex resumed>) = 1 [pid 5900] <... futex resumed>) = 0 [pid 5077] rmdir("./45" [pid 5904] close(4 [pid 5901] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5900] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] <... rmdir resumed>) = 0 [pid 5904] <... close resumed>) = 0 [pid 5901] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5900] <... futex resumed>) = 0 [pid 5077] mkdir("./46", 0777 [pid 5904] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5901] ioctl(4, FS_IOC_GETVERSION [pid 5900] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5077] <... mkdir resumed>) = 0 [ 121.815607][ T5907] reiserfs: using flush barriers [ 121.831118][ T5907] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 121.856872][ T5912] loop2: detected capacity change from 0 to 8192 [ 121.864985][ T5907] REISERFS (device loop4): checking transaction log (loop4) [pid 5904] <... futex resumed>) = 1 [pid 5903] <... futex resumed>) = 0 [pid 5901] <... ioctl resumed>, 0x20000080) = 0 [pid 5077] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5904] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5903] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5901] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] <... openat resumed>) = 3 [pid 5904] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5903] <... futex resumed>) = 0 [pid 5901] <... futex resumed>) = 1 [pid 5900] <... futex resumed>) = 0 [pid 5077] ioctl(3, LOOP_CLR_FD [pid 5904] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5903] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5901] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5900] exit_group(0 [pid 5077] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5904] <... open resumed>) = 4 [pid 5900] <... exit_group resumed>) = ? [pid 5904] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5901] <... futex resumed>) = ? [pid 5077] close(3 [pid 5913] <... write resumed>) = 4194304 [pid 5904] <... futex resumed>) = 1 [pid 5903] <... futex resumed>) = 0 [pid 5901] +++ exited with 0 +++ [pid 5900] +++ exited with 0 +++ [pid 5077] <... close resumed>) = 0 [pid 5904] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5903] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5900, si_uid=0, si_status=0, si_utime=0, si_stime=23 /* 0.23 s */} --- [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5904] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5903] <... futex resumed>) = 0 [pid 5075] restart_syscall(<... resuming interrupted clone ...> [pid 5903] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5904] ioctl(4, FS_IOC_GETVERSION [pid 5075] <... restart_syscall resumed>) = 0 [pid 5077] <... clone resumed>, child_tidptr=0x5555571745d0) = 5915 [pid 5904] <... ioctl resumed>, 0x20000080) = 0 [pid 5904] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5903] <... futex resumed>) = 0 [pid 5904] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5903] exit_group(0 [pid 5904] <... futex resumed>) = ? [pid 5903] <... exit_group resumed>) = ? [pid 5075] umount2("./44", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5904] +++ exited with 0 +++ [pid 5903] +++ exited with 0 +++ [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5903, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- [pid 5075] openat(AT_FDCWD, "./44", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] umount2("./44", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5075] <... openat resumed>) = 3 [pid 5079] openat(AT_FDCWD, "./44", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] fstat(3, [pid 5079] <... openat resumed>) = 3 [pid 5913] munmap(0x7fdb6a513000, 4194304 [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] fstat(3, [pid 5075] getdents64(3, [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5079] getdents64(3, [pid 5075] umount2("./44/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5913] <... munmap resumed>) = 0 [pid 5079] umount2("./44/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] lstat("./44/binderfs", [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [ 121.900156][ T5912] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 ./strace-static-x86_64: Process 5915 attached [pid 5913] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5079] lstat("./44/binderfs", [pid 5075] unlink("./44/binderfs" [pid 5915] set_robust_list(0x5555571745e0, 24 [pid 5913] <... openat resumed>) = 4 [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] <... unlink resumed>) = 0 [pid 5915] <... set_robust_list resumed>) = 0 [pid 5913] ioctl(4, LOOP_SET_FD, 3 [pid 5079] unlink("./44/binderfs" [pid 5075] umount2("./44/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5915] chdir("./46" [pid 5079] <... unlink resumed>) = 0 [pid 5915] <... chdir resumed>) = 0 [pid 5079] umount2("./44/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5915] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5913] <... ioctl resumed>) = 0 [pid 5913] close(3) = 0 [pid 5913] mkdir("./file0", 0777) = 0 [pid 5913] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5915] <... prctl resumed>) = 0 [pid 5915] setpgid(0, 0) = 0 [pid 5915] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5915] write(3, "1000", 4) = 4 [pid 5915] close(3) = 0 [pid 5915] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5915] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5915] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5915] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5915] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5917], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5917 [pid 5915] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 121.951413][ T5912] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 121.957706][ T5913] loop0: detected capacity change from 0 to 8192 [ 121.961148][ T5912] REISERFS (device loop2): using ordered data mode [ 121.974049][ T5912] reiserfs: using flush barriers [ 121.983702][ T5912] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5915] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5917 attached [pid 5917] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5917] memfd_create("syzkaller", 0) = 3 [pid 5917] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [ 122.023584][ T5913] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 122.039957][ T5912] REISERFS (device loop2): checking transaction log (loop2) [ 122.050535][ T5913] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 122.061443][ T5913] REISERFS (device loop0): using ordered data mode [ 122.069476][ T5913] reiserfs: using flush barriers [ 122.078513][ T5913] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 122.096675][ T5913] REISERFS (device loop0): checking transaction log (loop0) [pid 5075] <... umount2 resumed>) = 0 [pid 5917] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5913] <... mount resumed>) = 0 [pid 5075] umount2("./44/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5913] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5913] chdir("./file0" [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5913] <... chdir resumed>) = 0 [pid 5075] lstat("./44/file0", [pid 5913] ioctl(4, LOOP_CLR_FD [pid 5075] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5913] <... ioctl resumed>) = 0 [pid 5913] close(4 [pid 5075] umount2("./44/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5913] <... close resumed>) = 0 [pid 5079] <... umount2 resumed>) = 0 [pid 5913] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] umount2("./44/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5913] <... futex resumed>) = 1 [pid 5908] <... futex resumed>) = 0 [pid 5075] openat(AT_FDCWD, "./44/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] lstat("./44/file0", [pid 5913] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5908] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5075] <... openat resumed>) = 4 [pid 5079] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5908] <... futex resumed>) = 0 [pid 5913] <... open resumed>) = 4 [pid 5908] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5079] umount2("./44/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] fstat(4, [pid 5913] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5913] <... futex resumed>) = 1 [pid 5908] <... futex resumed>) = 0 [pid 5079] openat(AT_FDCWD, "./44/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5913] ioctl(4, FS_IOC_GETVERSION [pid 5908] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] <... openat resumed>) = 4 [pid 5075] getdents64(4, [pid 5913] <... ioctl resumed>, 0x20000080) = 0 [pid 5908] <... futex resumed>) = 0 [pid 5079] fstat(4, [pid 5908] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5075] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5913] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5908] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] getdents64(4, [pid 5908] exit_group(0 [pid 5079] getdents64(4, [pid 5075] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5913] <... futex resumed>) = ? [pid 5908] <... exit_group resumed>) = ? [pid 5079] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5907] <... mount resumed>) = 0 [ 122.204229][ T5913] REISERFS (device loop0): Using r5 hash to sort names [ 122.211439][ T5913] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 122.225969][ T5907] REISERFS (device loop4): Using r5 hash to sort names [ 122.239083][ T5907] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [pid 5075] close(4 [pid 5917] <... write resumed>) = 4194304 [pid 5913] +++ exited with 0 +++ [pid 5908] +++ exited with 0 +++ [pid 5907] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5079] getdents64(4, [pid 5075] <... close resumed>) = 0 [pid 5917] munmap(0x7fdb6a513000, 4194304 [pid 5907] <... openat resumed>) = 3 [pid 5079] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5075] rmdir("./44/file0" [pid 5917] <... munmap resumed>) = 0 [pid 5907] chdir("./file0" [pid 5079] close(4 [pid 5075] <... rmdir resumed>) = 0 [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5908, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=17 /* 0.17 s */} --- [pid 5917] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5907] <... chdir resumed>) = 0 [pid 5079] <... close resumed>) = 0 [pid 5075] getdents64(3, [pid 5074] umount2("./45", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5917] <... openat resumed>) = 4 [pid 5907] ioctl(4, LOOP_CLR_FD [pid 5079] rmdir("./44/file0" [pid 5075] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5917] ioctl(4, LOOP_SET_FD, 3 [pid 5907] <... ioctl resumed>) = 0 [pid 5079] <... rmdir resumed>) = 0 [pid 5075] close(3 [pid 5074] openat(AT_FDCWD, "./45", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5917] <... ioctl resumed>) = 0 [pid 5907] close(4 [pid 5079] getdents64(3, [pid 5075] <... close resumed>) = 0 [pid 5074] <... openat resumed>) = 3 [pid 5912] <... mount resumed>) = 0 [pid 5907] <... close resumed>) = 0 [pid 5079] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5907] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] close(3 [pid 5075] rmdir("./44" [pid 5074] fstat(3, [pid 5912] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5907] <... futex resumed>) = 1 [pid 5906] <... futex resumed>) = 0 [pid 5079] <... close resumed>) = 0 [pid 5912] <... openat resumed>) = 3 [pid 5906] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5912] chdir("./file0" [pid 5906] <... futex resumed>) = 0 [pid 5907] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5079] rmdir("./44" [pid 5075] <... rmdir resumed>) = 0 [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5912] <... chdir resumed>) = 0 [pid 5906] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5912] ioctl(4, LOOP_CLR_FD) = 0 [pid 5912] close(4) = 0 [pid 5912] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5910] <... futex resumed>) = 0 [pid 5912] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5910] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5912] <... open resumed>) = 4 [pid 5910] <... futex resumed>) = 0 [pid 5912] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5910] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5912] <... futex resumed>) = 0 [pid 5910] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5912] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5910] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5912] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5910] <... futex resumed>) = 0 [pid 5912] ioctl(4, FS_IOC_GETVERSION [pid 5910] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5907] <... open resumed>) = 4 [pid 5912] <... ioctl resumed>, 0x20000080) = 0 [pid 5912] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5910] <... futex resumed>) = 0 [pid 5079] <... rmdir resumed>) = 0 [pid 5912] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5910] exit_group(0 [pid 5907] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] mkdir("./45", 0777 [pid 5075] mkdir("./45", 0777 [pid 5074] getdents64(3, [pid 5912] <... futex resumed>) = ? [pid 5910] <... exit_group resumed>) = ? [pid 5907] <... futex resumed>) = 1 [pid 5906] <... futex resumed>) = 0 [pid 5912] +++ exited with 0 +++ [pid 5910] +++ exited with 0 +++ [pid 5907] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5906] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] <... mkdir resumed>) = 0 [pid 5075] <... mkdir resumed>) = 0 [pid 5074] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5907] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5906] <... futex resumed>) = 0 [pid 5079] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5075] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5074] umount2("./45/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5907] ioctl(4, FS_IOC_GETVERSION [pid 5906] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5910, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=22 /* 0.22 s */} --- [pid 5907] <... ioctl resumed>, 0x20000080) = 0 [pid 5075] <... openat resumed>) = 3 [pid 5076] restart_syscall(<... resuming interrupted clone ...> [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... openat resumed>) = 3 [pid 5076] <... restart_syscall resumed>) = 0 [pid 5074] lstat("./45/binderfs", [pid 5907] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] ioctl(3, LOOP_CLR_FD [pid 5075] ioctl(3, LOOP_CLR_FD [pid 5907] <... futex resumed>) = 1 [pid 5906] <... futex resumed>) = 0 [pid 5079] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5074] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5907] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5906] exit_group(0 [pid 5079] close(3 [pid 5075] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5074] unlink("./45/binderfs" [pid 5907] <... futex resumed>) = ? [pid 5906] <... exit_group resumed>) = ? [pid 5079] <... close resumed>) = 0 [pid 5076] umount2("./45", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] close(3 [pid 5074] <... unlink resumed>) = 0 [pid 5917] close(3) = 0 [pid 5917] mkdir("./file0", 0777 [pid 5907] +++ exited with 0 +++ [pid 5906] +++ exited with 0 +++ [pid 5075] <... close resumed>) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5078] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5906, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=17 /* 0.17 s */} --- [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5074] umount2("./45/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5078] restart_syscall(<... resuming interrupted clone ...> [pid 5917] <... mkdir resumed>) = 0 [pid 5917] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5078] <... restart_syscall resumed>) = 0 [pid 5076] openat(AT_FDCWD, "./45", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5078] umount2("./46", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5078] openat(AT_FDCWD, "./46", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5076] <... openat resumed>) = 3 [pid 5078] fstat(3, [pid 5079] <... clone resumed>, child_tidptr=0x5555571745d0) = 5918 [pid 5078] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] fstat(3, [pid 5075] <... clone resumed>, child_tidptr=0x5555571745d0) = 5919 [pid 5078] getdents64(3, [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5076] getdents64(3, [pid 5078] umount2("./46/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5078] lstat("./46/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5078] unlink("./46/binderfs") = 0 [pid 5078] umount2("./46/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 ./strace-static-x86_64: Process 5919 attached [pid 5076] umount2("./45/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5919] set_robust_list(0x5555571745e0, 24 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 122.307082][ T5912] REISERFS (device loop2): Using r5 hash to sort names [ 122.311926][ T5917] loop3: detected capacity change from 0 to 8192 [ 122.314929][ T5912] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 5919] <... set_robust_list resumed>) = 0 [pid 5076] lstat("./45/binderfs", [pid 5919] chdir("./45" [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5919] <... chdir resumed>) = 0 [pid 5919] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5076] unlink("./45/binderfs"./strace-static-x86_64: Process 5918 attached [pid 5919] <... prctl resumed>) = 0 [pid 5918] set_robust_list(0x5555571745e0, 24 [pid 5076] <... unlink resumed>) = 0 [pid 5919] setpgid(0, 0 [pid 5918] <... set_robust_list resumed>) = 0 [pid 5076] umount2("./45/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5919] <... setpgid resumed>) = 0 [pid 5918] chdir("./45") = 0 [pid 5918] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5918] setpgid(0, 0) = 0 [pid 5918] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5918] write(3, "1000", 4 [pid 5919] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5918] <... write resumed>) = 4 [pid 5919] write(3, "1000", 4 [pid 5918] close(3) = 0 [pid 5918] symlink("/dev/binderfs", "./binderfs" [pid 5919] <... write resumed>) = 4 [pid 5918] <... symlink resumed>) = 0 [pid 5919] close(3 [pid 5918] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5919] <... close resumed>) = 0 [pid 5918] <... futex resumed>) = 0 [pid 5919] symlink("/dev/binderfs", "./binderfs" [pid 5918] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5918] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5919] <... symlink resumed>) = 0 [pid 5918] <... mprotect resumed>) = 0 [pid 5919] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5918] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5921], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5921 [pid 5919] <... futex resumed>) = 0 [pid 5918] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5919] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5918] <... futex resumed>) = 0 [pid 5918] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5919] <... mmap resumed>) = 0x7fdb72913000 ./strace-static-x86_64: Process 5921 attached [pid 5919] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5921] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5919] <... mprotect resumed>) = 0 [pid 5921] memfd_create("syzkaller", 0 [pid 5919] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5921] <... memfd_create resumed>) = 3 [pid 5921] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [pid 5919] <... clone resumed>, parent_tid=[5922], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5922 ./strace-static-x86_64: Process 5922 attached [pid 5919] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5922] set_robust_list(0x7fdb729339e0, 24 [pid 5919] <... futex resumed>) = 0 [pid 5922] <... set_robust_list resumed>) = 0 [pid 5919] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5922] memfd_create("syzkaller", 0) = 3 [pid 5922] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [pid 5076] <... umount2 resumed>) = 0 [pid 5076] umount2("./45/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5076] lstat("./45/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] umount2("./45/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5076] openat(AT_FDCWD, "./45/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5076] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5076] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5076] close(4) = 0 [pid 5076] rmdir("./45/file0") = 0 [pid 5076] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5076] close(3) = 0 [pid 5076] rmdir("./45") = 0 [pid 5076] mkdir("./46", 0777) = 0 [ 122.413945][ T5917] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 122.451718][ T5917] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [pid 5076] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5074] <... umount2 resumed>) = 0 [pid 5921] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5074] umount2("./45/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] lstat("./45/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] umount2("./45/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] openat(AT_FDCWD, "./45/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5074] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5074] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5074] close(4) = 0 [pid 5074] rmdir("./45/file0") = 0 [pid 5074] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5074] close(3) = 0 [pid 5074] rmdir("./45") = 0 [ 122.503613][ T5917] REISERFS (device loop3): using ordered data mode [pid 5074] mkdir("./46", 0777) = 0 [pid 5074] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5074] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5074] close(3 [pid 5922] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5074] <... close resumed>) = 0 [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5923 [pid 5076] <... openat resumed>) = 3 [ 122.546310][ T5917] reiserfs: using flush barriers [pid 5076] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 5923 attached [pid 5923] set_robust_list(0x5555571745e0, 24) = 0 [pid 5923] chdir("./46") = 0 [pid 5923] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5923] setpgid(0, 0) = 0 [pid 5923] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5923] write(3, "1000", 4) = 4 [pid 5923] close(3) = 0 [pid 5923] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5923] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5923] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5076] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5923] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5076] close(3) = 0 [pid 5923] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5923] <... clone resumed>, parent_tid=[5924], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5924 [pid 5076] <... clone resumed>, child_tidptr=0x5555571745d0) = 5925 [pid 5923] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 5925 attached ./strace-static-x86_64: Process 5924 attached ) = 0 [pid 5923] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5925] set_robust_list(0x5555571745e0, 24 [pid 5924] set_robust_list(0x7fdb729339e0, 24 [pid 5078] <... umount2 resumed>) = 0 [pid 5925] <... set_robust_list resumed>) = 0 [pid 5924] <... set_robust_list resumed>) = 0 [pid 5925] chdir("./46" [pid 5924] memfd_create("syzkaller", 0 [pid 5925] <... chdir resumed>) = 0 [pid 5924] <... memfd_create resumed>) = 3 [ 122.574241][ T5917] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5078] umount2("./46/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5925] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5924] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5921] <... write resumed>) = 4194304 [pid 5925] <... prctl resumed>) = 0 [pid 5924] <... mmap resumed>) = 0x7fdb6a513000 [pid 5921] munmap(0x7fdb6a513000, 4194304 [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5925] setpgid(0, 0 [pid 5921] <... munmap resumed>) = 0 [pid 5921] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 5921] ioctl(4, LOOP_SET_FD, 3 [pid 5925] <... setpgid resumed>) = 0 [pid 5078] lstat("./46/file0", [pid 5925] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5078] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] umount2("./46/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5925] <... openat resumed>) = 3 [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5925] write(3, "1000", 4) = 4 [pid 5078] openat(AT_FDCWD, "./46/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5925] close(3 [pid 5078] fstat(4, [pid 5925] <... close resumed>) = 0 [pid 5078] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5925] symlink("/dev/binderfs", "./binderfs" [pid 5078] getdents64(4, [pid 5925] <... symlink resumed>) = 0 [pid 5078] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5078] getdents64(4, [pid 5925] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5925] <... futex resumed>) = 0 [pid 5078] close(4 [pid 5925] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5078] <... close resumed>) = 0 [pid 5925] <... mmap resumed>) = 0x7fdb72913000 [pid 5925] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5078] rmdir("./46/file0" [pid 5921] <... ioctl resumed>) = 0 [pid 5078] <... rmdir resumed>) = 0 [pid 5925] <... mprotect resumed>) = 0 [pid 5078] getdents64(3, [pid 5925] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5078] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5921] close(3) = 0 [pid 5078] close(3 [pid 5925] <... clone resumed>, parent_tid=[5926], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5926 [pid 5078] <... close resumed>) = 0 [pid 5921] mkdir("./file0", 0777 [pid 5925] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] rmdir("./46" [pid 5925] <... futex resumed>) = 0 [pid 5921] <... mkdir resumed>) = 0 [pid 5921] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5925] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5078] <... rmdir resumed>) = 0 ./strace-static-x86_64: Process 5926 attached [pid 5078] mkdir("./47", 0777 [pid 5926] set_robust_list(0x7fdb729339e0, 24 [pid 5078] <... mkdir resumed>) = 0 [pid 5078] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5926] <... set_robust_list resumed>) = 0 [pid 5078] <... openat resumed>) = 3 [pid 5926] memfd_create("syzkaller", 0 [pid 5078] ioctl(3, LOOP_CLR_FD [pid 5926] <... memfd_create resumed>) = 3 [pid 5078] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5926] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [ 122.631864][ T5917] REISERFS (device loop3): checking transaction log (loop3) [ 122.645648][ T5921] loop5: detected capacity change from 0 to 8192 [pid 5078] close(3 [pid 5926] <... mmap resumed>) = 0x7fdb6a513000 [pid 5924] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5922] <... write resumed>) = 4194304 [pid 5078] <... close resumed>) = 0 [pid 5922] munmap(0x7fdb6a513000, 4194304 [pid 5078] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5922] <... munmap resumed>) = 0 [pid 5922] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5078] <... clone resumed>, child_tidptr=0x5555571745d0) = 5928 [pid 5922] <... openat resumed>) = 4 [pid 5922] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5922] close(3) = 0 ./strace-static-x86_64: Process 5928 attached [pid 5928] set_robust_list(0x5555571745e0, 24 [pid 5922] mkdir("./file0", 0777 [pid 5928] <... set_robust_list resumed>) = 0 [pid 5928] chdir("./47") = 0 [pid 5928] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5928] setpgid(0, 0 [pid 5922] <... mkdir resumed>) = 0 [pid 5928] <... setpgid resumed>) = 0 [pid 5928] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5922] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5928] <... openat resumed>) = 3 [pid 5928] write(3, "1000", 4) = 4 [pid 5928] close(3) = 0 [pid 5928] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5928] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5928] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5928] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [ 122.695417][ T5921] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 122.723512][ T5922] loop1: detected capacity change from 0 to 8192 [pid 5928] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5929], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5929 [pid 5928] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5928] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5929 attached [pid 5929] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5929] memfd_create("syzkaller", 0) = 3 [pid 5929] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [pid 5924] <... write resumed>) = 4194304 [pid 5924] munmap(0x7fdb6a513000, 4194304) = 0 [pid 5924] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [ 122.753974][ T5921] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 122.763611][ T5921] REISERFS (device loop5): using ordered data mode [ 122.770310][ T5921] reiserfs: using flush barriers [ 122.777623][ T5921] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5924] ioctl(4, LOOP_SET_FD, 3 [pid 5929] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5924] <... ioctl resumed>) = 0 [pid 5924] close(3) = 0 [pid 5924] mkdir("./file0", 0777) = 0 [ 122.807908][ T5924] loop0: detected capacity change from 0 to 8192 [ 122.814286][ T5922] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 122.814309][ T5922] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 122.814400][ T5922] REISERFS (device loop1): using ordered data mode [ 122.837827][ T5921] REISERFS (device loop5): checking transaction log (loop5) [pid 5924] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC, "" [ 122.872972][ T5924] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 122.875475][ T5922] reiserfs: using flush barriers [ 122.895522][ T5922] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5926] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5929] <... write resumed>) = 4194304 [pid 5929] munmap(0x7fdb6a513000, 4194304) = 0 [pid 5929] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [ 122.946614][ T5924] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 122.950805][ T5922] REISERFS (device loop1): checking transaction log (loop1) [ 122.957889][ T5917] REISERFS (device loop3): Using r5 hash to sort names [pid 5929] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5929] close(3) = 0 [pid 5929] mkdir("./file0", 0777) = 0 [ 122.996276][ T5929] loop4: detected capacity change from 0 to 8192 [ 122.996379][ T5917] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 123.015222][ T5924] REISERFS (device loop0): using ordered data mode [ 123.022491][ T5924] reiserfs: using flush barriers [pid 5929] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5917] <... mount resumed>) = 0 [pid 5917] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5917] chdir("./file0") = 0 [pid 5917] ioctl(4, LOOP_CLR_FD) = 0 [pid 5917] close(4) = 0 [ 123.046133][ T5924] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 123.074438][ T5929] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5917] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5926] <... write resumed>) = 4194304 [pid 5917] <... futex resumed>) = 1 [pid 5915] <... futex resumed>) = 0 [pid 5926] munmap(0x7fdb6a513000, 4194304 [pid 5917] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5915] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5926] <... munmap resumed>) = 0 [pid 5917] <... open resumed>) = 4 [pid 5915] <... futex resumed>) = 0 [pid 5915] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5926] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5917] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5926] <... openat resumed>) = 4 [pid 5917] <... futex resumed>) = 1 [pid 5917] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5915] <... futex resumed>) = 0 [ 123.093835][ T5922] REISERFS (device loop1): Using r5 hash to sort names [ 123.105549][ T5921] REISERFS (device loop5): Using r5 hash to sort names [ 123.108027][ T5922] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 123.119130][ T5929] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 123.126925][ T5924] REISERFS (device loop0): checking transaction log (loop0) [pid 5926] ioctl(4, LOOP_SET_FD, 3 [pid 5915] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5917] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5917] ioctl(4, FS_IOC_GETVERSION [pid 5915] <... futex resumed>) = 0 [pid 5917] <... ioctl resumed>, 0x20000080) = 0 [pid 5915] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5926] <... ioctl resumed>) = 0 [pid 5922] <... mount resumed>) = 0 [pid 5921] <... mount resumed>) = 0 [pid 5917] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5921] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5926] close(3 [pid 5922] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5917] <... futex resumed>) = 1 [pid 5915] <... futex resumed>) = 0 [pid 5917] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5915] exit_group(0 [pid 5921] <... openat resumed>) = 3 [pid 5917] <... futex resumed>) = ? [pid 5915] <... exit_group resumed>) = ? [pid 5917] +++ exited with 0 +++ [pid 5915] +++ exited with 0 +++ [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5915, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=17 /* 0.17 s */} --- [pid 5077] umount2("./46", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5921] chdir("./file0" [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5921] <... chdir resumed>) = 0 [pid 5077] openat(AT_FDCWD, "./46", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5921] ioctl(4, LOOP_CLR_FD [pid 5077] <... openat resumed>) = 3 [pid 5921] <... ioctl resumed>) = 0 [pid 5077] fstat(3, [pid 5926] <... close resumed>) = 0 [pid 5921] close(4 [pid 5926] mkdir("./file0", 0777 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5921] <... close resumed>) = 0 [pid 5077] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5921] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] umount2("./46/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5921] <... futex resumed>) = 1 [pid 5918] <... futex resumed>) = 0 [pid 5918] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5918] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5926] <... mkdir resumed>) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5921] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5077] lstat("./46/binderfs", [pid 5921] <... open resumed>) = 4 [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5921] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5926] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5921] <... futex resumed>) = 1 [pid 5918] <... futex resumed>) = 0 [pid 5077] unlink("./46/binderfs" [pid 5921] ioctl(4, FS_IOC_GETVERSION [pid 5918] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5918] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5077] <... unlink resumed>) = 0 [pid 5077] umount2("./46/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5921] <... ioctl resumed>, 0x20000080) = 0 [ 123.149264][ T5926] loop2: detected capacity change from 0 to 8192 [ 123.151367][ T5929] REISERFS (device loop4): using ordered data mode [ 123.164837][ T5929] reiserfs: using flush barriers [ 123.170137][ T5921] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 5921] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5922] <... openat resumed>) = 3 [pid 5921] <... futex resumed>) = 1 [pid 5918] <... futex resumed>) = 0 [pid 5918] exit_group(0) = ? [pid 5921] +++ exited with 0 +++ [pid 5918] +++ exited with 0 +++ [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5918, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- [pid 5079] umount2("./45", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./45", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5079] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5079] umount2("./45/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5922] chdir("./file0") = 0 [pid 5079] lstat("./45/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5922] ioctl(4, LOOP_CLR_FD [pid 5079] unlink("./45/binderfs") = 0 [pid 5922] <... ioctl resumed>) = 0 [pid 5079] umount2("./45/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5922] close(4) = 0 [ 123.208569][ T5929] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 123.241408][ T5926] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5922] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5919] <... futex resumed>) = 0 [pid 5922] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5919] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5919] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5922] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5922] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 5922] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5919] <... futex resumed>) = 0 [pid 5919] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5919] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5922] ioctl(4, FS_IOC_GETVERSION, 0x20000080) = 0 [pid 5922] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5919] <... futex resumed>) = 0 [pid 5922] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5919] exit_group(0 [pid 5922] <... futex resumed>) = ? [pid 5919] <... exit_group resumed>) = ? [pid 5922] +++ exited with 0 +++ [pid 5919] +++ exited with 0 +++ [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5919, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=21 /* 0.21 s */} --- [pid 5075] umount2("./45", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5075] openat(AT_FDCWD, "./45", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5075] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5075] umount2("./45/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5075] lstat("./45/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] unlink("./45/binderfs") = 0 [ 123.267846][ T5929] REISERFS (device loop4): checking transaction log (loop4) [pid 5075] umount2("./45/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... umount2 resumed>) = 0 [ 123.318757][ T5926] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 123.328799][ T5926] REISERFS (device loop2): using ordered data mode [ 123.337675][ T5926] reiserfs: using flush barriers [ 123.344515][ T5926] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5079] umount2("./45/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] lstat("./45/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] umount2("./45/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./45/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5079] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5079] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5079] close(4) = 0 [pid 5077] <... umount2 resumed>) = 0 [pid 5079] rmdir("./45/file0" [ 123.363271][ T5926] REISERFS (device loop2): checking transaction log (loop2) [ 123.385770][ T5924] REISERFS (device loop0): Using r5 hash to sort names [pid 5077] umount2("./46/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... rmdir resumed>) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5077] lstat("./46/file0", [pid 5079] close(3) = 0 [pid 5077] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] rmdir("./45" [pid 5077] umount2("./46/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... rmdir resumed>) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] mkdir("./46", 0777 [pid 5077] openat(AT_FDCWD, "./46/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] <... mkdir resumed>) = 0 [pid 5077] <... openat resumed>) = 4 [pid 5079] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5077] fstat(4, [pid 5079] <... openat resumed>) = 3 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] ioctl(3, LOOP_CLR_FD [pid 5077] getdents64(4, [pid 5079] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5079] close(3 [pid 5077] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5079] <... close resumed>) = 0 [ 123.416257][ T5924] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5079] <... clone resumed>, child_tidptr=0x5555571745d0) = 5934 [pid 5077] close(4) = 0 [pid 5077] rmdir("./46/file0") = 0 [pid 5077] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5077] close(3) = 0 [pid 5077] rmdir("./46"./strace-static-x86_64: Process 5934 attached ) = 0 [pid 5934] set_robust_list(0x5555571745e0, 24 [pid 5924] <... mount resumed>) = 0 [pid 5077] mkdir("./47", 0777 [pid 5934] <... set_robust_list resumed>) = 0 [pid 5924] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5934] chdir("./46" [pid 5924] <... openat resumed>) = 3 [pid 5077] <... mkdir resumed>) = 0 [pid 5934] <... chdir resumed>) = 0 [pid 5924] chdir("./file0" [pid 5077] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5934] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5924] <... chdir resumed>) = 0 [pid 5077] <... openat resumed>) = 3 [pid 5934] <... prctl resumed>) = 0 [pid 5924] ioctl(4, LOOP_CLR_FD [pid 5077] ioctl(3, LOOP_CLR_FD [pid 5075] <... umount2 resumed>) = 0 [pid 5924] <... ioctl resumed>) = 0 [pid 5924] close(4 [pid 5934] setpgid(0, 0 [pid 5924] <... close resumed>) = 0 [pid 5077] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5075] umount2("./45/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5934] <... setpgid resumed>) = 0 [pid 5924] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] close(3 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5934] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5924] <... futex resumed>) = 1 [pid 5923] <... futex resumed>) = 0 [pid 5077] <... close resumed>) = 0 [pid 5075] lstat("./45/file0", [pid 5934] <... openat resumed>) = 3 [pid 5924] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5923] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5934] write(3, "1000", 4 [pid 5924] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5923] <... futex resumed>) = 0 [pid 5075] umount2("./45/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5935 attached [pid 5934] <... write resumed>) = 4 [pid 5924] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5923] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5077] <... clone resumed>, child_tidptr=0x5555571745d0) = 5935 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5935] set_robust_list(0x5555571745e0, 24 [pid 5934] close(3 [pid 5924] <... open resumed>) = 4 [pid 5075] openat(AT_FDCWD, "./45/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5935] <... set_robust_list resumed>) = 0 [pid 5934] <... close resumed>) = 0 [pid 5924] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5935] chdir("./47" [pid 5934] symlink("/dev/binderfs", "./binderfs" [pid 5926] <... mount resumed>) = 0 [pid 5924] <... futex resumed>) = 1 [pid 5923] <... futex resumed>) = 0 [pid 5075] <... openat resumed>) = 4 [pid 5935] <... chdir resumed>) = 0 [pid 5934] <... symlink resumed>) = 0 [pid 5926] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [ 123.519646][ T5926] REISERFS (device loop2): Using r5 hash to sort names [ 123.530473][ T5926] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 5924] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5923] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5924] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5923] <... futex resumed>) = 0 [pid 5924] ioctl(4, FS_IOC_GETVERSION [pid 5923] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5924] <... ioctl resumed>, 0x20000080) = 0 [pid 5924] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5923] <... futex resumed>) = 0 [pid 5924] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5923] exit_group(0 [pid 5935] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5934] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5924] <... futex resumed>) = ? [pid 5923] <... exit_group resumed>) = ? [pid 5926] <... openat resumed>) = 3 [pid 5075] fstat(4, [pid 5935] <... prctl resumed>) = 0 [pid 5934] <... futex resumed>) = 0 [pid 5926] chdir("./file0" [pid 5924] +++ exited with 0 +++ [pid 5923] +++ exited with 0 +++ [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5935] setpgid(0, 0 [pid 5934] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5926] <... chdir resumed>) = 0 [pid 5075] getdents64(4, [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5923, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=16 /* 0.16 s */} --- [pid 5935] <... setpgid resumed>) = 0 [pid 5934] <... mmap resumed>) = 0x7fdb72913000 [pid 5926] ioctl(4, LOOP_CLR_FD [pid 5075] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5935] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5934] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5926] <... ioctl resumed>) = 0 [pid 5075] getdents64(4, [pid 5935] <... openat resumed>) = 3 [pid 5934] <... mprotect resumed>) = 0 [pid 5926] close(4 [pid 5075] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5074] umount2("./46", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5935] write(3, "1000", 4 [pid 5934] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5926] <... close resumed>) = 0 [pid 5075] close(4 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5935] <... write resumed>) = 4 [pid 5926] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5075] <... close resumed>) = 0 [pid 5074] openat(AT_FDCWD, "./46", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5935] close(3 [pid 5934] <... clone resumed>, parent_tid=[5936], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5936 [pid 5926] <... futex resumed>) = 1 [pid 5925] <... futex resumed>) = 0 [pid 5075] rmdir("./45/file0" [pid 5074] <... openat resumed>) = 3 [pid 5074] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 ./strace-static-x86_64: Process 5936 attached [pid 5074] getdents64(3, [pid 5936] set_robust_list(0x7fdb729339e0, 24 [pid 5074] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5936] <... set_robust_list resumed>) = 0 [pid 5074] umount2("./46/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5936] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5935] <... close resumed>) = 0 [pid 5926] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5925] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5935] symlink("/dev/binderfs", "./binderfs" [pid 5934] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5926] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5925] <... futex resumed>) = 0 [pid 5075] <... rmdir resumed>) = 0 [pid 5074] lstat("./46/binderfs", [pid 5936] <... futex resumed>) = 0 [pid 5935] <... symlink resumed>) = 0 [pid 5934] <... futex resumed>) = 1 [pid 5926] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5925] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5075] getdents64(3, [pid 5074] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5936] memfd_create("syzkaller", 0 [pid 5935] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5934] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5926] <... open resumed>) = 4 [pid 5075] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5074] unlink("./46/binderfs" [pid 5936] <... memfd_create resumed>) = 3 [pid 5935] <... futex resumed>) = 0 [pid 5926] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5075] close(3 [pid 5074] <... unlink resumed>) = 0 [pid 5936] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5074] umount2("./46/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5936] <... mmap resumed>) = 0x7fdb6a513000 [pid 5935] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5929] <... mount resumed>) = 0 [pid 5926] <... futex resumed>) = 1 [pid 5925] <... futex resumed>) = 0 [pid 5075] <... close resumed>) = 0 [pid 5935] <... mmap resumed>) = 0x7fdb72913000 [pid 5929] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5926] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5925] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5075] rmdir("./45" [pid 5935] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5929] <... openat resumed>) = 3 [pid 5926] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5925] <... futex resumed>) = 0 [pid 5075] <... rmdir resumed>) = 0 [pid 5935] <... mprotect resumed>) = 0 [pid 5929] chdir("./file0" [pid 5926] ioctl(4, FS_IOC_GETVERSION [pid 5925] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5075] mkdir("./46", 0777 [pid 5935] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5929] <... chdir resumed>) = 0 [pid 5926] <... ioctl resumed>, 0x20000080) = 0 [pid 5075] <... mkdir resumed>) = 0 [pid 5929] ioctl(4, LOOP_CLR_FD [pid 5926] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5075] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5935] <... clone resumed>, parent_tid=[5937], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5937 [pid 5929] <... ioctl resumed>) = 0 [pid 5926] <... futex resumed>) = 1 [pid 5925] <... futex resumed>) = 0 [pid 5075] <... openat resumed>) = 3 [pid 5935] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5929] close(4 [ 123.576082][ T5929] REISERFS (device loop4): Using r5 hash to sort names [ 123.597243][ T5929] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [pid 5926] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5925] exit_group(0 [pid 5075] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 5937 attached [pid 5935] <... futex resumed>) = 0 [pid 5929] <... close resumed>) = 0 [pid 5926] <... futex resumed>) = ? [pid 5925] <... exit_group resumed>) = ? [pid 5075] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5937] set_robust_list(0x7fdb729339e0, 24 [pid 5935] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5929] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5926] +++ exited with 0 +++ [pid 5925] +++ exited with 0 +++ [pid 5075] close(3 [pid 5929] <... futex resumed>) = 1 [pid 5075] <... close resumed>) = 0 [pid 5937] <... set_robust_list resumed>) = 0 [pid 5929] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5928] <... futex resumed>) = 0 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5937] memfd_create("syzkaller", 0 [pid 5928] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5925, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} --- [pid 5075] <... clone resumed>, child_tidptr=0x5555571745d0) = 5938 [pid 5937] <... memfd_create resumed>) = 3 [pid 5929] <... futex resumed>) = 0 [pid 5928] <... futex resumed>) = 1 [pid 5076] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 5938 attached [pid 5937] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5936] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5929] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 5928] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5076] <... restart_syscall resumed>) = 0 [pid 5937] <... mmap resumed>) = 0x7fdb6a513000 [pid 5929] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5929] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5928] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5928] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5929] <... futex resumed>) = 0 [pid 5928] <... futex resumed>) = 1 [pid 5076] umount2("./46", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5929] ioctl(4, FS_IOC_GETVERSION [pid 5928] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5929] <... ioctl resumed>, 0x20000080) = 0 [pid 5929] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5929] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5928] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5076] openat(AT_FDCWD, "./46", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5928] exit_group(0) = ? [pid 5076] <... openat resumed>) = 3 [pid 5929] <... futex resumed>) = ? [pid 5076] fstat(3, [pid 5929] +++ exited with 0 +++ [pid 5928] +++ exited with 0 +++ [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5928, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} --- [pid 5076] getdents64(3, [pid 5078] restart_syscall(<... resuming interrupted clone ...> [pid 5076] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5076] umount2("./46/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5078] <... restart_syscall resumed>) = 0 [pid 5076] lstat("./46/binderfs", [pid 5078] umount2("./47", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] unlink("./46/binderfs" [pid 5078] openat(AT_FDCWD, "./47", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] <... unlink resumed>) = 0 [pid 5078] <... openat resumed>) = 3 [pid 5076] umount2("./46/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5078] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5078] umount2("./47/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5938] set_robust_list(0x5555571745e0, 24 [pid 5078] lstat("./47/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5938] <... set_robust_list resumed>) = 0 [pid 5078] unlink("./47/binderfs" [pid 5938] chdir("./46") = 0 [pid 5078] <... unlink resumed>) = 0 [pid 5938] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5078] umount2("./47/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5938] setpgid(0, 0) = 0 [pid 5938] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5938] write(3, "1000", 4) = 4 [pid 5938] close(3) = 0 [pid 5938] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5938] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5938] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5938] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5938] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5939], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5939 [pid 5938] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5938] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5939 attached [pid 5939] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5939] memfd_create("syzkaller", 0) = 3 [pid 5939] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [pid 5937] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5074] <... umount2 resumed>) = 0 [pid 5074] umount2("./46/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] lstat("./46/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] umount2("./46/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] openat(AT_FDCWD, "./46/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5074] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5074] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5074] close(4) = 0 [pid 5936] <... write resumed>) = 4194304 [pid 5074] rmdir("./46/file0" [pid 5936] munmap(0x7fdb6a513000, 4194304 [pid 5074] <... rmdir resumed>) = 0 [pid 5074] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5074] close(3) = 0 [pid 5074] rmdir("./46") = 0 [pid 5936] <... munmap resumed>) = 0 [pid 5074] mkdir("./47", 0777 [pid 5936] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5074] <... mkdir resumed>) = 0 [pid 5074] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5936] <... openat resumed>) = 4 [pid 5074] <... openat resumed>) = 3 [pid 5074] ioctl(3, LOOP_CLR_FD [pid 5936] ioctl(4, LOOP_SET_FD, 3 [pid 5074] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5074] close(3 [pid 5939] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5074] <... close resumed>) = 0 [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5940 [pid 5936] <... ioctl resumed>) = 0 [pid 5936] close(3) = 0 [pid 5936] mkdir("./file0", 0777./strace-static-x86_64: Process 5940 attached ) = 0 [pid 5940] set_robust_list(0x5555571745e0, 24) = 0 [pid 5940] chdir("./47" [pid 5936] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5940] <... chdir resumed>) = 0 [pid 5940] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5940] setpgid(0, 0) = 0 [pid 5940] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5940] write(3, "1000", 4) = 4 [pid 5940] close(3) = 0 [pid 5940] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5940] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5940] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5940] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5076] <... umount2 resumed>) = 0 [pid 5940] <... mprotect resumed>) = 0 [ 123.867683][ T5936] loop5: detected capacity change from 0 to 8192 [pid 5940] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5942], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5942 [pid 5940] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5940] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5942 attached [pid 5942] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5942] memfd_create("syzkaller", 0) = 3 [pid 5076] umount2("./46/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5942] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5078] <... umount2 resumed>) = 0 [pid 5076] lstat("./46/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] umount2("./46/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5076] openat(AT_FDCWD, "./46/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5076] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5076] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5076] close(4) = 0 [pid 5076] rmdir("./46/file0") = 0 [pid 5076] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5076] close(3) = 0 [pid 5076] rmdir("./46" [pid 5078] umount2("./47/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... rmdir resumed>) = 0 [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] mkdir("./47", 0777 [pid 5078] lstat("./47/file0", [pid 5076] <... mkdir resumed>) = 0 [pid 5078] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5937] <... write resumed>) = 4194304 [pid 5078] umount2("./47/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... openat resumed>) = 3 [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] ioctl(3, LOOP_CLR_FD [pid 5078] openat(AT_FDCWD, "./47/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5078] <... openat resumed>) = 4 [ 123.932697][ T5936] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5076] close(3 [pid 5078] fstat(4, [pid 5076] <... close resumed>) = 0 [pid 5939] <... write resumed>) = 4194304 [pid 5078] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5078] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5076] <... clone resumed>, child_tidptr=0x5555571745d0) = 5943 [pid 5078] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5078] close(4 [pid 5937] munmap(0x7fdb6a513000, 4194304 [pid 5078] <... close resumed>) = 0 [pid 5078] rmdir("./47/file0"./strace-static-x86_64: Process 5943 attached [pid 5942] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5939] munmap(0x7fdb6a513000, 4194304 [pid 5937] <... munmap resumed>) = 0 [pid 5943] set_robust_list(0x5555571745e0, 24 [pid 5939] <... munmap resumed>) = 0 [pid 5943] <... set_robust_list resumed>) = 0 [pid 5937] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5078] <... rmdir resumed>) = 0 [pid 5943] chdir("./47" [pid 5939] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5937] <... openat resumed>) = 4 [pid 5943] <... chdir resumed>) = 0 [pid 5939] <... openat resumed>) = 4 [pid 5943] prctl(PR_SET_PDEATHSIG, SIGKILL [ 123.993678][ T5936] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 124.016110][ T5936] REISERFS (device loop5): using ordered data mode [ 124.023779][ T5936] reiserfs: using flush barriers [pid 5937] ioctl(4, LOOP_SET_FD, 3 [pid 5943] <... prctl resumed>) = 0 [pid 5939] ioctl(4, LOOP_SET_FD, 3 [pid 5078] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5078] close(3) = 0 [pid 5078] rmdir("./47") = 0 [pid 5078] mkdir("./48", 0777) = 0 [pid 5078] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5078] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5078] close(3 [pid 5943] setpgid(0, 0 [pid 5078] <... close resumed>) = 0 [pid 5939] <... ioctl resumed>) = 0 [pid 5937] <... ioctl resumed>) = 0 [pid 5078] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5943] <... setpgid resumed>) = 0 [pid 5939] close(3 [pid 5937] close(3 [pid 5943] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5939] <... close resumed>) = 0 [pid 5937] <... close resumed>) = 0 [pid 5078] <... clone resumed>, child_tidptr=0x5555571745d0) = 5944 [pid 5943] <... openat resumed>) = 3 [pid 5939] mkdir("./file0", 0777 [pid 5937] mkdir("./file0", 0777./strace-static-x86_64: Process 5944 attached [pid 5943] write(3, "1000", 4 [pid 5939] <... mkdir resumed>) = 0 [pid 5937] <... mkdir resumed>) = 0 [pid 5944] set_robust_list(0x5555571745e0, 24 [pid 5943] <... write resumed>) = 4 [pid 5939] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5937] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5944] <... set_robust_list resumed>) = 0 [pid 5943] close(3 [pid 5944] chdir("./48" [pid 5943] <... close resumed>) = 0 [ 124.031658][ T5936] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 124.041104][ T5937] loop3: detected capacity change from 0 to 8192 [ 124.057111][ T5939] loop1: detected capacity change from 0 to 8192 [ 124.065972][ T5936] REISERFS (device loop5): checking transaction log (loop5) [pid 5944] <... chdir resumed>) = 0 [pid 5943] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5943] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5943] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5942] <... write resumed>) = 4194304 [pid 5942] munmap(0x7fdb6a513000, 4194304) = 0 [pid 5942] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5942] ioctl(4, LOOP_SET_FD, 3 [pid 5944] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5943] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5942] <... ioctl resumed>) = 0 [pid 5942] close(3) = 0 [pid 5942] mkdir("./file0", 0777) = 0 [ 124.114023][ T5939] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 124.132357][ T5937] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 124.138250][ T5942] loop0: detected capacity change from 0 to 8192 [ 124.146993][ T5937] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [pid 5942] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5944] <... prctl resumed>) = 0 [pid 5943] <... mprotect resumed>) = 0 [pid 5944] setpgid(0, 0 [pid 5943] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5944] <... setpgid resumed>) = 0 ./strace-static-x86_64: Process 5948 attached [pid 5948] set_robust_list(0x7fdb729339e0, 24) = 0 [ 124.155654][ T5939] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 124.171764][ T5936] REISERFS (device loop5): Using r5 hash to sort names [ 124.172720][ T5937] REISERFS (device loop3): using ordered data mode [ 124.180265][ T5936] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 124.187538][ T5937] reiserfs: using flush barriers [ 124.196966][ T5939] REISERFS (device loop1): using ordered data mode [pid 5948] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5944] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5943] <... clone resumed>, parent_tid=[5948], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5948 [pid 5944] <... openat resumed>) = 3 [pid 5943] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5948] <... futex resumed>) = 0 [pid 5943] <... futex resumed>) = 1 [pid 5948] memfd_create("syzkaller", 0 [pid 5944] write(3, "1000", 4 [pid 5943] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5948] <... memfd_create resumed>) = 3 [pid 5944] <... write resumed>) = 4 [pid 5948] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5944] close(3 [pid 5948] <... mmap resumed>) = 0x7fdb6a513000 [pid 5944] <... close resumed>) = 0 [pid 5944] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5944] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5944] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5944] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5944] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5949], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5949 [pid 5936] <... mount resumed>) = 0 [pid 5944] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5936] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5944] <... futex resumed>) = 0 [pid 5936] <... openat resumed>) = 3 [pid 5944] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5936] chdir("./file0"./strace-static-x86_64: Process 5949 attached ) = 0 [pid 5949] set_robust_list(0x7fdb729339e0, 24 [pid 5936] ioctl(4, LOOP_CLR_FD [pid 5949] <... set_robust_list resumed>) = 0 [pid 5936] <... ioctl resumed>) = 0 [ 124.204646][ T5937] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 124.208704][ T5942] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 124.224401][ T5937] REISERFS (device loop3): checking transaction log (loop3) [pid 5949] memfd_create("syzkaller", 0 [pid 5936] close(4 [pid 5949] <... memfd_create resumed>) = 3 [pid 5936] <... close resumed>) = 0 [pid 5949] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5936] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5949] <... mmap resumed>) = 0x7fdb6a513000 [pid 5936] <... futex resumed>) = 1 [pid 5934] <... futex resumed>) = 0 [pid 5936] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5934] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5936] <... futex resumed>) = 0 [pid 5934] <... futex resumed>) = 1 [pid 5936] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5934] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5936] <... open resumed>) = 4 [pid 5936] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5934] <... futex resumed>) = 0 [pid 5936] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5934] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5936] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5934] <... futex resumed>) = 0 [ 124.277625][ T5939] reiserfs: using flush barriers [pid 5936] ioctl(4, FS_IOC_GETVERSION [pid 5934] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5936] <... ioctl resumed>, 0x20000080) = 0 [pid 5936] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5934] <... futex resumed>) = 0 [pid 5948] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5936] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5934] exit_group(0 [pid 5936] <... futex resumed>) = ? [pid 5934] <... exit_group resumed>) = ? [pid 5936] +++ exited with 0 +++ [pid 5934] +++ exited with 0 +++ [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5934, si_uid=0, si_status=0, si_utime=0, si_stime=23 /* 0.23 s */} --- [pid 5079] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5079] umount2("./46", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./46", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5079] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5079] umount2("./46/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] lstat("./46/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] unlink("./46/binderfs") = 0 [ 124.316715][ T5939] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 124.349356][ T5942] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [pid 5079] umount2("./46/file0", MNT_DETACH|UMOUNT_NOFOLLOW [ 124.378488][ T5942] REISERFS (device loop0): using ordered data mode [ 124.385013][ T5939] REISERFS (device loop1): checking transaction log (loop1) [ 124.410839][ T5942] reiserfs: using flush barriers [ 124.416832][ T5937] REISERFS (device loop3): Using r5 hash to sort names [pid 5949] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5948] <... write resumed>) = 4194304 [pid 5948] munmap(0x7fdb6a513000, 4194304 [pid 5937] <... mount resumed>) = 0 [pid 5948] <... munmap resumed>) = 0 [pid 5948] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5937] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5948] <... openat resumed>) = 4 [pid 5937] <... openat resumed>) = 3 [pid 5948] ioctl(4, LOOP_SET_FD, 3 [pid 5937] chdir("./file0") = 0 [ 124.445060][ T5942] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 124.461909][ T5937] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [pid 5937] ioctl(4, LOOP_CLR_FD) = 0 [pid 5948] <... ioctl resumed>) = 0 [pid 5937] close(4 [pid 5949] <... write resumed>) = 4194304 [pid 5948] close(3 [pid 5937] <... close resumed>) = 0 [pid 5079] <... umount2 resumed>) = 0 [pid 5948] <... close resumed>) = 0 [pid 5937] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5948] mkdir("./file0", 0777 [pid 5937] <... futex resumed>) = 1 [pid 5935] <... futex resumed>) = 0 [pid 5937] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5948] <... mkdir resumed>) = 0 [pid 5937] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5935] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5948] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5937] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5935] <... futex resumed>) = 0 [pid 5937] <... open resumed>) = 4 [pid 5935] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5937] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5935] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5937] <... futex resumed>) = 0 [pid 5935] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5937] ioctl(4, FS_IOC_GETVERSION [pid 5935] <... futex resumed>) = 0 [pid 5937] <... ioctl resumed>, 0x20000080) = 0 [pid 5935] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [ 124.497824][ T5948] loop2: detected capacity change from 0 to 8192 [ 124.506757][ T5942] REISERFS (device loop0): checking transaction log (loop0) [pid 5937] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5935] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5937] <... futex resumed>) = 0 [pid 5935] exit_group(0 [pid 5949] munmap(0x7fdb6a513000, 4194304) = 0 [pid 5949] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5949] ioctl(4, LOOP_SET_FD, 3 [pid 5937] ioctl(4, LOOP_SET_FD, 3 [pid 5949] <... ioctl resumed>) = 0 [pid 5937] +++ exited with 0 +++ [pid 5935] <... exit_group resumed>) = ? [pid 5079] umount2("./46/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5935] +++ exited with 0 +++ [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] lstat("./46/file0", [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5935, si_uid=0, si_status=0, si_utime=0, si_stime=21 /* 0.21 s */} --- [pid 5079] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] umount2("./46/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 124.560085][ T5948] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 124.574938][ T5949] loop4: detected capacity change from 0 to 8192 [pid 5077] umount2("./47", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] openat(AT_FDCWD, "./46/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] openat(AT_FDCWD, "./47", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5077] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] getdents64(3, [pid 5079] <... openat resumed>) = 4 [pid 5077] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5077] umount2("./47/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] lstat("./47/binderfs", [pid 5949] close(3 [pid 5079] fstat(4, [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5949] <... close resumed>) = 0 [pid 5949] mkdir("./file0", 0777) = 0 [pid 5949] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] unlink("./47/binderfs" [ 124.606686][ T5948] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 124.617022][ T5948] REISERFS (device loop2): using ordered data mode [ 124.624112][ T5948] reiserfs: using flush barriers [ 124.624112][ T5939] REISERFS (device loop1): Using r5 hash to sort names [ 124.624417][ T5939] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [pid 5079] getdents64(4, [pid 5939] <... mount resumed>) = 0 [pid 5079] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5077] <... unlink resumed>) = 0 [pid 5939] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5079] getdents64(4, [pid 5077] umount2("./47/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5939] <... openat resumed>) = 3 [pid 5939] chdir("./file0" [pid 5079] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5079] close(4) = 0 [pid 5939] <... chdir resumed>) = 0 [pid 5079] rmdir("./46/file0" [pid 5939] ioctl(4, LOOP_CLR_FD) = 0 [pid 5079] <... rmdir resumed>) = 0 [pid 5939] close(4 [ 124.646699][ T5948] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 124.665238][ T5948] REISERFS (device loop2): checking transaction log (loop2) [ 124.673772][ T5949] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 124.693301][ T5949] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [pid 5079] getdents64(3, [pid 5939] <... close resumed>) = 0 [pid 5079] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5939] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] close(3) = 0 [pid 5939] <... futex resumed>) = 1 [pid 5938] <... futex resumed>) = 0 [pid 5939] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5079] rmdir("./46" [pid 5938] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5939] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5938] <... futex resumed>) = 0 [pid 5079] <... rmdir resumed>) = 0 [pid 5939] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5938] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5939] <... open resumed>) = 4 [pid 5939] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] mkdir("./47", 0777 [pid 5939] <... futex resumed>) = 1 [pid 5938] <... futex resumed>) = 0 [pid 5079] <... mkdir resumed>) = 0 [pid 5939] ioctl(4, FS_IOC_GETVERSION [pid 5938] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5939] <... ioctl resumed>, 0x20000080) = 0 [pid 5938] <... futex resumed>) = 0 [pid 5079] <... openat resumed>) = 3 [pid 5939] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5938] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5079] ioctl(3, LOOP_CLR_FD [pid 5939] <... futex resumed>) = 0 [pid 5938] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5079] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5939] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5938] exit_group(0 [pid 5079] close(3 [pid 5938] <... exit_group resumed>) = ? [pid 5939] <... futex resumed>) = ? [pid 5079] <... close resumed>) = 0 [pid 5939] +++ exited with 0 +++ [pid 5938] +++ exited with 0 +++ [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5938, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=14 /* 0.14 s */} --- [pid 5077] <... umount2 resumed>) = 0 [ 124.708719][ T5949] REISERFS (device loop4): using ordered data mode [ 124.722743][ T5949] reiserfs: using flush barriers [ 124.730113][ T5949] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 ./strace-static-x86_64: Process 5952 attached [pid 5079] <... clone resumed>, child_tidptr=0x5555571745d0) = 5952 [pid 5077] umount2("./47/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5952] set_robust_list(0x5555571745e0, 24) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5952] chdir("./47") = 0 [pid 5077] lstat("./47/file0", [pid 5075] umount2("./46", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5952] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5952] <... prctl resumed>) = 0 [pid 5077] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] openat(AT_FDCWD, "./46", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5952] setpgid(0, 0 [pid 5077] umount2("./47/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... openat resumed>) = 3 [pid 5952] <... setpgid resumed>) = 0 [pid 5075] fstat(3, [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5952] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5077] openat(AT_FDCWD, "./47/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5075] umount2("./46/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5952] <... openat resumed>) = 3 [pid 5077] <... openat resumed>) = 4 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5952] write(3, "1000", 4 [pid 5075] lstat("./46/binderfs", [pid 5952] <... write resumed>) = 4 [pid 5077] fstat(4, [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5952] close(3 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] unlink("./46/binderfs" [pid 5952] <... close resumed>) = 0 [pid 5077] getdents64(4, [pid 5075] <... unlink resumed>) = 0 [pid 5952] symlink("/dev/binderfs", "./binderfs" [pid 5077] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5075] umount2("./46/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5952] <... symlink resumed>) = 0 [pid 5077] getdents64(4, [pid 5952] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5077] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5952] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5077] close(4 [pid 5952] <... mmap resumed>) = 0x7fdb72913000 [ 124.790797][ T5949] REISERFS (device loop4): checking transaction log (loop4) [pid 5077] <... close resumed>) = 0 [pid 5952] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5077] rmdir("./47/file0" [pid 5952] <... mprotect resumed>) = 0 [pid 5952] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5077] <... rmdir resumed>) = 0 [pid 5077] getdents64(3, [pid 5952] <... clone resumed>, parent_tid=[5953], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5953 [pid 5952] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5952] <... futex resumed>) = 0 [pid 5077] close(3 [pid 5952] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5077] <... close resumed>) = 0 [pid 5077] rmdir("./47") = 0 [pid 5077] mkdir("./48", 0777) = 0 [pid 5077] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5077] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5077] close(3./strace-static-x86_64: Process 5953 attached ) = 0 [pid 5953] set_robust_list(0x7fdb729339e0, 24 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5953] <... set_robust_list resumed>) = 0 [pid 5953] memfd_create("syzkaller", 0 [pid 5077] <... clone resumed>, child_tidptr=0x5555571745d0) = 5954 [pid 5953] <... memfd_create resumed>) = 3 [pid 5953] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [ 124.853622][ T5942] REISERFS (device loop0): Using r5 hash to sort names [ 124.882094][ T5942] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5942] <... mount resumed>) = 0 ./strace-static-x86_64: Process 5954 attached [pid 5942] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5954] set_robust_list(0x5555571745e0, 24 [pid 5942] <... openat resumed>) = 3 [pid 5954] <... set_robust_list resumed>) = 0 [pid 5942] chdir("./file0" [pid 5954] chdir("./48" [pid 5942] <... chdir resumed>) = 0 [pid 5954] <... chdir resumed>) = 0 [pid 5942] ioctl(4, LOOP_CLR_FD [pid 5954] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5942] <... ioctl resumed>) = 0 [pid 5954] <... prctl resumed>) = 0 [pid 5942] close(4 [pid 5954] setpgid(0, 0 [pid 5942] <... close resumed>) = 0 [pid 5942] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5940] <... futex resumed>) = 0 [pid 5942] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5940] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5942] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5940] <... futex resumed>) = 0 [pid 5942] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5940] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5942] <... open resumed>) = 4 [pid 5942] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5940] <... futex resumed>) = 0 [pid 5942] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5940] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5942] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5940] <... futex resumed>) = 0 [pid 5942] ioctl(4, FS_IOC_GETVERSION [pid 5940] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5942] <... ioctl resumed>, 0x20000080) = 0 [pid 5942] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5940] <... futex resumed>) = 0 [pid 5942] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5940] exit_group(0 [pid 5942] <... futex resumed>) = ? [pid 5940] <... exit_group resumed>) = ? [pid 5954] <... setpgid resumed>) = 0 [pid 5942] +++ exited with 0 +++ [pid 5940] +++ exited with 0 +++ [pid 5954] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5953] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5940, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=19 /* 0.19 s */} --- [pid 5954] <... openat resumed>) = 3 [pid 5074] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5954] write(3, "1000", 4) = 4 [pid 5954] close(3 [pid 5074] umount2("./47", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5954] <... close resumed>) = 0 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5954] symlink("/dev/binderfs", "./binderfs" [pid 5074] openat(AT_FDCWD, "./47", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5074] fstat(3, [pid 5954] <... symlink resumed>) = 0 [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5954] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5074] getdents64(3, [pid 5954] <... futex resumed>) = 0 [pid 5074] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5954] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5074] umount2("./47/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5954] <... mmap resumed>) = 0x7fdb72913000 [pid 5074] lstat("./47/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5074] unlink("./47/binderfs" [pid 5954] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5074] <... unlink resumed>) = 0 [pid 5074] umount2("./47/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5954] <... mprotect resumed>) = 0 [pid 5075] <... umount2 resumed>) = 0 [ 124.989718][ T5949] REISERFS (device loop4): Using r5 hash to sort names [ 125.008071][ T5949] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 125.017288][ T5948] REISERFS (device loop2): Using r5 hash to sort names [pid 5954] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5075] umount2("./46/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5954] <... clone resumed>, parent_tid=[5955], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5955 [pid 5954] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5949] <... mount resumed>) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5954] <... futex resumed>) = 0 [pid 5949] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5075] lstat("./46/file0", [pid 5954] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5949] <... openat resumed>) = 3 [pid 5075] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5949] chdir("./file0") = 0 [pid 5075] umount2("./46/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5949] ioctl(4, LOOP_CLR_FD [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5949] <... ioctl resumed>) = 0 [pid 5949] close(4 [pid 5075] openat(AT_FDCWD, "./46/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY./strace-static-x86_64: Process 5955 attached [pid 5953] <... write resumed>) = 4194304 [pid 5949] <... close resumed>) = 0 [pid 5948] <... mount resumed>) = 0 [pid 5075] <... openat resumed>) = 4 [pid 5955] set_robust_list(0x7fdb729339e0, 24 [pid 5953] munmap(0x7fdb6a513000, 4194304 [pid 5949] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5948] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5075] fstat(4, [pid 5955] <... set_robust_list resumed>) = 0 [pid 5953] <... munmap resumed>) = 0 [pid 5949] <... futex resumed>) = 1 [pid 5948] <... openat resumed>) = 3 [pid 5944] <... futex resumed>) = 0 [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5955] memfd_create("syzkaller", 0 [pid 5953] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5949] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5948] chdir("./file0" [pid 5944] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5075] getdents64(4, [pid 5955] <... memfd_create resumed>) = 3 [pid 5953] <... openat resumed>) = 4 [pid 5949] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5948] <... chdir resumed>) = 0 [pid 5944] <... futex resumed>) = 0 [pid 5075] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [ 125.048716][ T5948] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 5955] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5953] ioctl(4, LOOP_SET_FD, 3 [pid 5949] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5948] ioctl(4, LOOP_CLR_FD [pid 5944] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5075] getdents64(4, [pid 5955] <... mmap resumed>) = 0x7fdb6a513000 [pid 5953] <... ioctl resumed>) = 0 [pid 5949] <... open resumed>) = 4 [pid 5948] <... ioctl resumed>) = 0 [pid 5075] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5953] close(3 [pid 5949] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5948] close(4 [pid 5075] close(4 [pid 5953] <... close resumed>) = 0 [pid 5949] <... futex resumed>) = 1 [pid 5948] <... close resumed>) = 0 [pid 5944] <... futex resumed>) = 0 [pid 5075] <... close resumed>) = 0 [pid 5953] mkdir("./file0", 0777 [pid 5949] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5948] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5944] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5075] rmdir("./46/file0" [pid 5953] <... mkdir resumed>) = 0 [pid 5949] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5948] <... futex resumed>) = 1 [pid 5944] <... futex resumed>) = 0 [pid 5943] <... futex resumed>) = 0 [pid 5075] <... rmdir resumed>) = 0 [pid 5953] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5949] ioctl(4, FS_IOC_GETVERSION [pid 5948] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5944] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5943] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5075] getdents64(3, [pid 5949] <... ioctl resumed>, 0x20000080) = 0 [pid 5948] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5943] <... futex resumed>) = 0 [pid 5075] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5949] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5948] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5943] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5075] close(3 [pid 5949] <... futex resumed>) = 1 [pid 5948] <... open resumed>) = 4 [pid 5944] <... futex resumed>) = 0 [pid 5075] <... close resumed>) = 0 [pid 5949] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5948] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5944] exit_group(0 [pid 5075] rmdir("./46" [pid 5949] <... futex resumed>) = ? [ 125.103290][ T5953] loop5: detected capacity change from 0 to 8192 [pid 5948] <... futex resumed>) = 1 [pid 5944] <... exit_group resumed>) = ? [pid 5943] <... futex resumed>) = 0 [pid 5075] <... rmdir resumed>) = 0 [pid 5949] +++ exited with 0 +++ [pid 5948] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5944] +++ exited with 0 +++ [pid 5943] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5075] mkdir("./47", 0777 [pid 5948] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5943] <... futex resumed>) = 0 [pid 5075] <... mkdir resumed>) = 0 [pid 5074] <... umount2 resumed>) = 0 [pid 5948] ioctl(4, FS_IOC_GETVERSION [pid 5943] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5075] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5948] <... ioctl resumed>, 0x20000080) = 0 [pid 5075] <... openat resumed>) = 3 [pid 5948] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5075] ioctl(3, LOOP_CLR_FD [pid 5948] <... futex resumed>) = 1 [pid 5943] <... futex resumed>) = 0 [pid 5075] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5948] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5943] exit_group(0 [pid 5075] close(3 [pid 5948] <... futex resumed>) = ? [pid 5943] <... exit_group resumed>) = ? [pid 5078] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5944, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=20 /* 0.20 s */} --- [pid 5075] <... close resumed>) = 0 [pid 5074] umount2("./47/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5948] +++ exited with 0 +++ [pid 5943] +++ exited with 0 +++ [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5957 [ 125.145530][ T5953] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 125.173179][ T5953] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 125.184269][ T5953] REISERFS (device loop5): using ordered data mode [pid 5078] restart_syscall(<... resuming interrupted clone ...> [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5943, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=19 /* 0.19 s */} --- [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5957 attached [pid 5955] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5078] <... restart_syscall resumed>) = 0 [pid 5074] lstat("./47/file0", [pid 5957] set_robust_list(0x5555571745e0, 24) = 0 [pid 5074] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5957] chdir("./47" [pid 5076] umount2("./47", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] umount2("./47/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5957] <... chdir resumed>) = 0 [pid 5078] umount2("./48", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5957] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] openat(AT_FDCWD, "./47", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5074] openat(AT_FDCWD, "./47/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5957] <... prctl resumed>) = 0 [pid 5078] openat(AT_FDCWD, "./48", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] <... openat resumed>) = 3 [pid 5957] setpgid(0, 0 [pid 5078] <... openat resumed>) = 3 [pid 5076] fstat(3, [pid 5074] <... openat resumed>) = 4 [pid 5957] <... setpgid resumed>) = 0 [pid 5078] fstat(3, [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] fstat(4, [pid 5957] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5078] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] getdents64(3, [pid 5957] <... openat resumed>) = 3 [pid 5078] getdents64(3, [pid 5076] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5957] write(3, "1000", 4 [pid 5078] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5076] umount2("./47/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] getdents64(4, [pid 5957] <... write resumed>) = 4 [pid 5078] umount2("./48/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5957] close(3 [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] lstat("./47/binderfs", [pid 5074] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5957] <... close resumed>) = 0 [pid 5078] lstat("./48/binderfs", [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5074] getdents64(4, [pid 5957] symlink("/dev/binderfs", "./binderfs" [pid 5078] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] unlink("./47/binderfs" [pid 5074] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5957] <... symlink resumed>) = 0 [pid 5078] unlink("./48/binderfs" [pid 5076] <... unlink resumed>) = 0 [pid 5074] close(4 [pid 5957] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] <... unlink resumed>) = 0 [pid 5076] umount2("./47/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5957] <... futex resumed>) = 0 [pid 5078] umount2("./48/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] <... close resumed>) = 0 [pid 5957] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5074] rmdir("./47/file0" [pid 5957] <... mmap resumed>) = 0x7fdb72913000 [pid 5074] <... rmdir resumed>) = 0 [pid 5957] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5074] getdents64(3, [pid 5957] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5074] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5074] close(3 [pid 5957] <... clone resumed>, parent_tid=[5958], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5958 [pid 5074] <... close resumed>) = 0 [pid 5957] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5074] rmdir("./47" [pid 5957] <... futex resumed>) = 0 [pid 5957] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5074] <... rmdir resumed>) = 0 [ 125.191054][ T5953] reiserfs: using flush barriers [ 125.199438][ T5953] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5074] mkdir("./48", 0777) = 0 ./strace-static-x86_64: Process 5958 attached [pid 5955] <... write resumed>) = 4194304 [pid 5074] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5958] set_robust_list(0x7fdb729339e0, 24 [pid 5955] munmap(0x7fdb6a513000, 4194304 [pid 5074] <... openat resumed>) = 3 [pid 5958] <... set_robust_list resumed>) = 0 [pid 5955] <... munmap resumed>) = 0 [pid 5074] ioctl(3, LOOP_CLR_FD [pid 5958] memfd_create("syzkaller", 0 [pid 5955] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5074] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5958] <... memfd_create resumed>) = 3 [pid 5955] <... openat resumed>) = 4 [pid 5074] close(3 [pid 5958] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5955] ioctl(4, LOOP_SET_FD, 3 [pid 5074] <... close resumed>) = 0 [pid 5958] <... mmap resumed>) = 0x7fdb6a513000 [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5959 [pid 5955] <... ioctl resumed>) = 0 [pid 5955] close(3) = 0 [pid 5955] mkdir("./file0", 0777) = 0 [pid 5955] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC, ""./strace-static-x86_64: Process 5959 attached [ 125.256152][ T5953] REISERFS (device loop5): checking transaction log (loop5) [ 125.282005][ T5955] loop3: detected capacity change from 0 to 8192 [pid 5959] set_robust_list(0x5555571745e0, 24) = 0 [pid 5959] chdir("./48") = 0 [pid 5959] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5959] setpgid(0, 0) = 0 [pid 5959] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5959] write(3, "1000", 4) = 4 [pid 5959] close(3) = 0 [pid 5959] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5959] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5959] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5959] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5959] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5961], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5961 [pid 5959] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 125.314522][ T5955] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5959] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5961 attached [pid 5958] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5961] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5961] memfd_create("syzkaller", 0) = 3 [pid 5961] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [ 125.356311][ T5955] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [pid 5076] <... umount2 resumed>) = 0 [pid 5076] umount2("./47/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5076] lstat("./47/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] umount2("./47/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5076] openat(AT_FDCWD, "./47/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5076] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5076] getdents64(4, [pid 5961] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5076] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5076] close(4) = 0 [pid 5076] rmdir("./47/file0") = 0 [pid 5076] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5076] close(3) = 0 [pid 5076] rmdir("./47") = 0 [ 125.403709][ T5955] REISERFS (device loop3): using ordered data mode [ 125.410919][ T5955] reiserfs: using flush barriers [ 125.419605][ T5955] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5076] mkdir("./48", 0777) = 0 [pid 5076] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5076] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5076] close(3) = 0 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5962 attached [pid 5962] set_robust_list(0x5555571745e0, 24) = 0 [pid 5962] chdir("./48") = 0 [pid 5962] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5962] setpgid(0, 0) = 0 [pid 5962] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5961] <... write resumed>) = 4194304 [pid 5076] <... clone resumed>, child_tidptr=0x5555571745d0) = 5962 [pid 5962] <... openat resumed>) = 3 [pid 5962] write(3, "1000", 4) = 4 [pid 5962] close(3) = 0 [pid 5962] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5962] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5962] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5962] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5962] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5963], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5963 [pid 5962] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5962] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5963 attached [pid 5963] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5963] memfd_create("syzkaller", 0) = 3 [pid 5963] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [pid 5078] <... umount2 resumed>) = 0 [pid 5078] umount2("./48/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5961] munmap(0x7fdb6a513000, 4194304 [pid 5078] lstat("./48/file0", [pid 5961] <... munmap resumed>) = 0 [pid 5961] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5961] ioctl(4, LOOP_SET_FD, 3 [pid 5078] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5961] <... ioctl resumed>) = 0 [pid 5078] umount2("./48/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5078] openat(AT_FDCWD, "./48/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5078] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5078] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5078] close(4) = 0 [pid 5078] rmdir("./48/file0") = 0 [pid 5078] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5078] close(3) = 0 [pid 5078] rmdir("./48" [pid 5961] close(3) = 0 [pid 5961] mkdir("./file0", 0777) = 0 [pid 5078] <... rmdir resumed>) = 0 [pid 5078] mkdir("./49", 0777 [pid 5961] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5078] <... mkdir resumed>) = 0 [pid 5078] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5078] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [ 125.553633][ T5955] REISERFS (device loop3): checking transaction log (loop3) [ 125.583596][ T5961] loop0: detected capacity change from 0 to 8192 [pid 5078] close(3 [pid 5963] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5078] <... close resumed>) = 0 [pid 5078] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5958] <... write resumed>) = 4194304 [pid 5958] munmap(0x7fdb6a513000, 4194304) = 0 [pid 5078] <... clone resumed>, child_tidptr=0x5555571745d0) = 5965 [pid 5958] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5958] ioctl(4, LOOP_SET_FD, 3./strace-static-x86_64: Process 5965 attached [pid 5965] set_robust_list(0x5555571745e0, 24) = 0 [pid 5965] chdir("./49") = 0 [pid 5965] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5965] setpgid(0, 0) = 0 [pid 5965] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5965] write(3, "1000", 4) = 4 [pid 5958] <... ioctl resumed>) = 0 [pid 5953] <... mount resumed>) = 0 [ 125.638448][ T5958] loop1: detected capacity change from 0 to 8192 [ 125.647995][ T5961] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 125.669836][ T5953] REISERFS (device loop5): Using r5 hash to sort names [ 125.677553][ T5953] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 5965] close(3) = 0 [pid 5965] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5965] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5965] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5965] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5965] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5958] close(3 [pid 5953] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5965] <... clone resumed>, parent_tid=[5966], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5966 [pid 5965] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5958] <... close resumed>) = 0 [pid 5953] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5966 attached [pid 5965] <... futex resumed>) = 0 [pid 5958] mkdir("./file0", 0777 [pid 5953] chdir("./file0" [pid 5966] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5966] memfd_create("syzkaller", 0 [pid 5958] <... mkdir resumed>) = 0 [pid 5953] <... chdir resumed>) = 0 [pid 5966] <... memfd_create resumed>) = 3 [pid 5966] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5953] ioctl(4, LOOP_CLR_FD [pid 5958] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5966] <... mmap resumed>) = 0x7fdb6a513000 [pid 5953] <... ioctl resumed>) = 0 [pid 5965] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [ 125.687733][ T5961] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 125.698452][ T5961] REISERFS (device loop0): using ordered data mode [ 125.706080][ T5961] reiserfs: using flush barriers [ 125.717553][ T5961] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5953] close(4) = 0 [pid 5953] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5952] <... futex resumed>) = 0 [pid 5952] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5952] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5953] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 5953] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5952] <... futex resumed>) = 0 [pid 5953] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5952] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5953] <... futex resumed>) = 0 [pid 5952] <... futex resumed>) = 1 [pid 5953] ioctl(4, FS_IOC_GETVERSION [pid 5952] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5953] <... ioctl resumed>, 0x20000080) = 0 [pid 5953] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5952] <... futex resumed>) = 0 [pid 5953] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5952] exit_group(0 [pid 5953] <... futex resumed>) = ? [pid 5952] <... exit_group resumed>) = ? [pid 5953] +++ exited with 0 +++ [pid 5952] +++ exited with 0 +++ [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5952, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=14 /* 0.14 s */} --- [pid 5079] umount2("./47", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./47", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5079] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] getdents64(3, [pid 5966] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5079] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5079] umount2("./47/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] lstat("./47/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] unlink("./47/binderfs") = 0 [ 125.735952][ T5958] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5079] umount2("./47/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5963] <... write resumed>) = 4194304 [pid 5966] <... write resumed>) = 4194304 [pid 5963] munmap(0x7fdb6a513000, 4194304) = 0 [pid 5963] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5966] munmap(0x7fdb6a513000, 4194304 [pid 5963] <... openat resumed>) = 4 [pid 5966] <... munmap resumed>) = 0 [pid 5963] ioctl(4, LOOP_SET_FD, 3 [pid 5966] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [ 125.812100][ T5961] REISERFS (device loop0): checking transaction log (loop0) [ 125.833103][ T5963] loop2: detected capacity change from 0 to 8192 [ 125.837197][ T5958] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 125.849317][ T5958] REISERFS (device loop1): using ordered data mode [ 125.856246][ T5958] reiserfs: using flush barriers [pid 5966] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5963] <... ioctl resumed>) = 0 [pid 5963] close(3) = 0 [pid 5966] close(3 [pid 5963] mkdir("./file0", 0777 [pid 5966] <... close resumed>) = 0 [pid 5963] <... mkdir resumed>) = 0 [pid 5966] mkdir("./file0", 0777 [pid 5963] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5966] <... mkdir resumed>) = 0 [ 125.861796][ T5966] loop4: detected capacity change from 0 to 8192 [ 125.869538][ T5958] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 125.886415][ T5958] REISERFS (device loop1): checking transaction log (loop1) [pid 5966] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5079] <... umount2 resumed>) = 0 [pid 5079] umount2("./47/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 125.926821][ T5963] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 125.944102][ T5966] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 125.967317][ T5963] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [pid 5079] lstat("./47/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] umount2("./47/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 125.978606][ T5955] REISERFS (device loop3): Using r5 hash to sort names [ 125.982856][ T5963] REISERFS (device loop2): using ordered data mode [ 126.004300][ T5963] reiserfs: using flush barriers [ 126.008326][ T5966] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 126.012858][ T5955] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [pid 5079] openat(AT_FDCWD, "./47/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5955] <... mount resumed>) = 0 [pid 5079] <... openat resumed>) = 4 [pid 5955] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5079] fstat(4, [pid 5955] <... openat resumed>) = 3 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5955] chdir("./file0" [pid 5079] getdents64(4, [pid 5955] <... chdir resumed>) = 0 [pid 5079] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5955] ioctl(4, LOOP_CLR_FD [pid 5079] getdents64(4, [pid 5955] <... ioctl resumed>) = 0 [pid 5079] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [ 126.019782][ T5963] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 126.033682][ T5966] REISERFS (device loop4): using ordered data mode [ 126.051269][ T5966] reiserfs: using flush barriers [ 126.059541][ T5963] REISERFS (device loop2): checking transaction log (loop2) [pid 5955] close(4 [pid 5079] close(4 [pid 5955] <... close resumed>) = 0 [pid 5079] <... close resumed>) = 0 [pid 5955] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] rmdir("./47/file0" [pid 5955] <... futex resumed>) = 1 [pid 5079] <... rmdir resumed>) = 0 [pid 5958] <... mount resumed>) = 0 [pid 5955] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5954] <... futex resumed>) = 0 [pid 5079] getdents64(3, [pid 5958] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5955] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5954] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5958] <... openat resumed>) = 3 [pid 5955] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5079] close(3 [pid 5958] chdir("./file0" [pid 5955] <... open resumed>) = 4 [pid 5954] <... futex resumed>) = 0 [pid 5079] <... close resumed>) = 0 [pid 5958] <... chdir resumed>) = 0 [pid 5955] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5954] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5079] rmdir("./47" [pid 5958] ioctl(4, LOOP_CLR_FD [pid 5955] <... futex resumed>) = 0 [pid 5954] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5079] <... rmdir resumed>) = 0 [pid 5958] <... ioctl resumed>) = 0 [pid 5955] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5954] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] mkdir("./48", 0777 [pid 5958] close(4 [pid 5955] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5954] <... futex resumed>) = 0 [pid 5079] <... mkdir resumed>) = 0 [pid 5958] <... close resumed>) = 0 [pid 5955] ioctl(4, FS_IOC_GETVERSION [pid 5954] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5079] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5958] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5955] <... ioctl resumed>, 0x20000080) = 0 [pid 5079] <... openat resumed>) = 3 [pid 5958] <... futex resumed>) = 1 [pid 5957] <... futex resumed>) = 0 [pid 5955] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] ioctl(3, LOOP_CLR_FD [pid 5958] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5957] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5955] <... futex resumed>) = 1 [pid 5954] <... futex resumed>) = 0 [pid 5079] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5958] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5957] <... futex resumed>) = 0 [pid 5955] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5954] exit_group(0 [ 126.060385][ T5966] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 126.085284][ T5958] REISERFS (device loop1): Using r5 hash to sort names [ 126.092697][ T5958] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 126.105802][ T5966] REISERFS (device loop4): checking transaction log (loop4) [ 126.115499][ T5961] REISERFS (device loop0): Using r5 hash to sort names [pid 5079] close(3 [pid 5958] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5957] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5955] <... futex resumed>) = ? [pid 5954] <... exit_group resumed>) = ? [pid 5079] <... close resumed>) = 0 [pid 5958] <... open resumed>) = 4 [pid 5955] +++ exited with 0 +++ [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5958] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5954] +++ exited with 0 +++ [pid 5958] <... futex resumed>) = 1 [pid 5957] <... futex resumed>) = 0 [pid 5079] <... clone resumed>, child_tidptr=0x5555571745d0) = 5970 [pid 5958] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5957] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5954, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=18 /* 0.18 s */} --- [pid 5958] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5957] <... futex resumed>) = 0 [pid 5077] restart_syscall(<... resuming interrupted clone ...> [pid 5958] ioctl(4, FS_IOC_GETVERSION [pid 5957] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5077] <... restart_syscall resumed>) = 0 [pid 5958] <... ioctl resumed>, 0x20000080) = 0 [pid 5958] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 5970 attached ) = 1 [pid 5957] <... futex resumed>) = 0 [pid 5077] umount2("./48", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5970] set_robust_list(0x5555571745e0, 24 [pid 5958] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5957] exit_group(0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5970] <... set_robust_list resumed>) = 0 [pid 5958] <... futex resumed>) = ? [pid 5957] <... exit_group resumed>) = ? [pid 5077] openat(AT_FDCWD, "./48", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5970] chdir("./48" [pid 5958] +++ exited with 0 +++ [pid 5957] +++ exited with 0 +++ [pid 5077] <... openat resumed>) = 3 [pid 5970] <... chdir resumed>) = 0 [pid 5077] fstat(3, [pid 5970] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5970] <... prctl resumed>) = 0 [pid 5077] getdents64(3, [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5957, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=17 /* 0.17 s */} --- [pid 5970] setpgid(0, 0 [pid 5077] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5970] <... setpgid resumed>) = 0 [pid 5077] umount2("./48/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5970] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] umount2("./47", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5970] <... openat resumed>) = 3 [pid 5077] lstat("./48/binderfs", [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5970] write(3, "1000", 4 [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] openat(AT_FDCWD, "./47", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5970] <... write resumed>) = 4 [pid 5077] unlink("./48/binderfs" [pid 5970] close(3 [pid 5077] <... unlink resumed>) = 0 [pid 5970] <... close resumed>) = 0 [pid 5077] umount2("./48/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5970] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5075] <... openat resumed>) = 3 [pid 5970] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5075] fstat(3, [pid 5970] <... futex resumed>) = 0 [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5970] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5075] getdents64(3, [pid 5970] <... mmap resumed>) = 0x7fdb72913000 [pid 5075] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5970] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5075] umount2("./47/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5970] <... mprotect resumed>) = 0 [pid 5970] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] lstat("./47/binderfs", [pid 5970] <... clone resumed>, parent_tid=[5971], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5971 [pid 5970] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5970] <... futex resumed>) = 0 [pid 5970] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5075] unlink("./47/binderfs") = 0 [pid 5075] umount2("./47/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5971 attached [pid 5971] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5971] memfd_create("syzkaller", 0) = 3 [pid 5971] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [ 126.170731][ T5961] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5961] <... mount resumed>) = 0 [pid 5961] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5961] chdir("./file0") = 0 [pid 5961] ioctl(4, LOOP_CLR_FD) = 0 [pid 5961] close(4) = 0 [pid 5961] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5961] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5959] <... futex resumed>) = 0 [pid 5959] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5961] <... futex resumed>) = 0 [pid 5959] <... futex resumed>) = 1 [pid 5961] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5959] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5961] <... open resumed>) = 4 [pid 5961] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5961] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5959] <... futex resumed>) = 0 [pid 5959] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5961] <... futex resumed>) = 0 [pid 5959] <... futex resumed>) = 1 [pid 5961] ioctl(4, FS_IOC_GETVERSION [pid 5959] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5961] <... ioctl resumed>, 0x20000080) = 0 [pid 5961] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5959] <... futex resumed>) = 0 [pid 5961] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5959] exit_group(0 [pid 5971] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5961] <... futex resumed>) = ? [pid 5959] <... exit_group resumed>) = ? [pid 5961] +++ exited with 0 +++ [pid 5959] +++ exited with 0 +++ [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5959, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=22 /* 0.22 s */} --- [pid 5074] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5074] umount2("./48", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] openat(AT_FDCWD, "./48", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5074] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5074] umount2("./48/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] lstat("./48/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5074] unlink("./48/binderfs") = 0 [ 126.395677][ T5963] REISERFS (device loop2): Using r5 hash to sort names [ 126.404855][ T5966] REISERFS (device loop4): Using r5 hash to sort names [ 126.431241][ T5966] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [pid 5074] umount2("./48/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... umount2 resumed>) = 0 [pid 5966] <... mount resumed>) = 0 [pid 5966] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5963] <... mount resumed>) = 0 [pid 5077] umount2("./48/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5966] <... openat resumed>) = 3 [pid 5963] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... umount2 resumed>) = 0 [pid 5966] chdir("./file0" [pid 5077] lstat("./48/file0", [pid 5966] <... chdir resumed>) = 0 [pid 5963] <... openat resumed>) = 3 [pid 5966] ioctl(4, LOOP_CLR_FD [pid 5963] chdir("./file0" [pid 5077] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5966] <... ioctl resumed>) = 0 [pid 5963] <... chdir resumed>) = 0 [pid 5077] umount2("./48/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] umount2("./47/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5966] close(4 [pid 5963] ioctl(4, LOOP_CLR_FD [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5966] <... close resumed>) = 0 [pid 5075] lstat("./47/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] umount2("./47/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5075] openat(AT_FDCWD, "./47/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5075] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5075] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5966] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5963] <... ioctl resumed>) = 0 [pid 5077] openat(AT_FDCWD, "./48/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [ 126.449296][ T5963] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 5075] close(4 [pid 5971] <... write resumed>) = 4194304 [pid 5966] <... futex resumed>) = 1 [pid 5965] <... futex resumed>) = 0 [pid 5963] close(4 [pid 5077] <... openat resumed>) = 4 [pid 5075] <... close resumed>) = 0 [pid 5971] munmap(0x7fdb6a513000, 4194304 [pid 5966] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5965] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5963] <... close resumed>) = 0 [pid 5077] fstat(4, [pid 5075] rmdir("./47/file0" [pid 5074] <... umount2 resumed>) = 0 [pid 5971] <... munmap resumed>) = 0 [pid 5966] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5965] <... futex resumed>) = 0 [pid 5963] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] umount2("./48/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5971] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5966] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5965] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5963] <... futex resumed>) = 1 [pid 5962] <... futex resumed>) = 0 [pid 5077] getdents64(4, [pid 5075] <... rmdir resumed>) = 0 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5971] <... openat resumed>) = 4 [pid 5966] <... open resumed>) = 4 [pid 5963] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5962] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5075] getdents64(3, [pid 5074] lstat("./48/file0", [pid 5971] ioctl(4, LOOP_SET_FD, 3 [pid 5966] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5963] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5962] <... futex resumed>) = 0 [pid 5077] getdents64(4, [pid 5075] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5074] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5966] <... futex resumed>) = 1 [pid 5965] <... futex resumed>) = 0 [pid 5963] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5962] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5077] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5075] close(3 [pid 5074] umount2("./48/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5971] <... ioctl resumed>) = 0 [pid 5966] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5965] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5963] <... open resumed>) = 4 [pid 5077] close(4 [pid 5075] <... close resumed>) = 0 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5971] close(3 [pid 5966] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5965] <... futex resumed>) = 0 [pid 5963] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] <... close resumed>) = 0 [pid 5075] rmdir("./47" [pid 5074] openat(AT_FDCWD, "./48/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5971] <... close resumed>) = 0 [pid 5966] ioctl(4, FS_IOC_GETVERSION [pid 5965] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5963] <... futex resumed>) = 1 [pid 5962] <... futex resumed>) = 0 [pid 5077] rmdir("./48/file0" [pid 5074] <... openat resumed>) = 4 [pid 5971] mkdir("./file0", 0777 [pid 5966] <... ioctl resumed>, 0x20000080) = 0 [pid 5963] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5962] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] <... rmdir resumed>) = 0 [pid 5075] <... rmdir resumed>) = 0 [pid 5074] fstat(4, [pid 5971] <... mkdir resumed>) = 0 [pid 5966] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5963] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5962] <... futex resumed>) = 0 [pid 5077] getdents64(3, [pid 5075] mkdir("./48", 0777 [pid 5971] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5966] <... futex resumed>) = 1 [pid 5965] <... futex resumed>) = 0 [pid 5963] ioctl(4, FS_IOC_GETVERSION [pid 5962] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5077] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5075] <... mkdir resumed>) = 0 [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5966] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5965] exit_group(0 [pid 5963] <... ioctl resumed>, 0x20000080) = 0 [pid 5077] close(3 [pid 5075] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5074] getdents64(4, [pid 5966] <... futex resumed>) = ? [pid 5965] <... exit_group resumed>) = ? [pid 5963] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] <... close resumed>) = 0 [pid 5075] <... openat resumed>) = 3 [pid 5074] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5966] +++ exited with 0 +++ [pid 5075] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5965] +++ exited with 0 +++ [pid 5963] <... futex resumed>) = 1 [pid 5962] <... futex resumed>) = 0 [pid 5077] rmdir("./48" [pid 5075] close(3 [pid 5074] getdents64(4, [pid 5963] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5962] exit_group(0 [pid 5078] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5965, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=19 /* 0.19 s */} --- [pid 5077] <... rmdir resumed>) = 0 [pid 5075] <... close resumed>) = 0 [pid 5962] <... exit_group resumed>) = ? [pid 5078] restart_syscall(<... resuming interrupted clone ...> [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5078] <... restart_syscall resumed>) = 0 [pid 5075] <... clone resumed>, child_tidptr=0x5555571745d0) = 5973 [pid 5078] umount2("./49", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5078] openat(AT_FDCWD, "./49", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5963] <... futex resumed>) = ? [pid 5078] <... openat resumed>) = 3 [pid 5074] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5078] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] getdents64(3, [pid 5963] +++ exited with 0 +++ [pid 5962] +++ exited with 0 +++ [ 126.538040][ T5971] loop5: detected capacity change from 0 to 8192 [ 126.567065][ T5971] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5078] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5077] mkdir("./49", 0777 [pid 5074] close(4./strace-static-x86_64: Process 5973 attached [pid 5078] umount2("./49/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5962, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=17 /* 0.17 s */} --- [pid 5973] set_robust_list(0x5555571745e0, 24 [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5973] <... set_robust_list resumed>) = 0 [pid 5078] lstat("./49/binderfs", [pid 5973] chdir("./48" [pid 5078] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] umount2("./48", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5973] <... chdir resumed>) = 0 [pid 5078] unlink("./49/binderfs" [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5973] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5078] <... unlink resumed>) = 0 [pid 5077] <... mkdir resumed>) = 0 [pid 5076] openat(AT_FDCWD, "./48", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5074] <... close resumed>) = 0 [pid 5973] <... prctl resumed>) = 0 [pid 5078] umount2("./49/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... openat resumed>) = 3 [pid 5973] setpgid(0, 0 [pid 5076] fstat(3, [pid 5973] <... setpgid resumed>) = 0 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5973] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5076] getdents64(3, [pid 5973] <... openat resumed>) = 3 [pid 5076] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5973] write(3, "1000", 4 [pid 5076] umount2("./48/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5973] <... write resumed>) = 4 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5973] close(3 [pid 5077] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5076] lstat("./48/binderfs", [pid 5074] rmdir("./48/file0" [pid 5973] <... close resumed>) = 0 [pid 5077] <... openat resumed>) = 3 [pid 5074] <... rmdir resumed>) = 0 [pid 5077] ioctl(3, LOOP_CLR_FD [pid 5074] getdents64(3, [pid 5077] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5074] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5077] close(3 [pid 5074] close(3 [pid 5077] <... close resumed>) = 0 [pid 5074] <... close resumed>) = 0 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5074] rmdir("./48") = 0 [pid 5077] <... clone resumed>, child_tidptr=0x5555571745d0) = 5974 [pid 5074] mkdir("./49", 0777) = 0 [pid 5074] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5074] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5074] close(3) = 0 [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5975 [pid 5973] symlink("/dev/binderfs", "./binderfs" [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5973] <... symlink resumed>) = 0 [pid 5076] unlink("./48/binderfs" [pid 5973] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5076] <... unlink resumed>) = 0 [pid 5973] <... futex resumed>) = 0 [pid 5076] umount2("./48/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5973] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [ 126.588195][ T5971] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 126.599374][ T5971] REISERFS (device loop5): using ordered data mode [ 126.607418][ T5971] reiserfs: using flush barriers [ 126.615324][ T5971] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5973] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5973] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5976], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5976 [pid 5973] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5973] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5976 attached [pid 5976] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5976] memfd_create("syzkaller", 0./strace-static-x86_64: Process 5975 attached ./strace-static-x86_64: Process 5974 attached ) = 3 [pid 5974] set_robust_list(0x5555571745e0, 24 [pid 5976] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5975] set_robust_list(0x5555571745e0, 24 [pid 5974] <... set_robust_list resumed>) = 0 [pid 5976] <... mmap resumed>) = 0x7fdb6a513000 [pid 5975] <... set_robust_list resumed>) = 0 [pid 5975] chdir("./49" [pid 5974] chdir("./49" [pid 5975] <... chdir resumed>) = 0 [pid 5975] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5974] <... chdir resumed>) = 0 [pid 5975] <... prctl resumed>) = 0 [pid 5974] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5975] setpgid(0, 0 [pid 5974] setpgid(0, 0 [pid 5975] <... setpgid resumed>) = 0 [pid 5974] <... setpgid resumed>) = 0 [pid 5974] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5975] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5974] <... openat resumed>) = 3 [pid 5975] write(3, "1000", 4 [pid 5974] write(3, "1000", 4 [pid 5975] <... write resumed>) = 4 [pid 5974] <... write resumed>) = 4 [pid 5975] close(3 [pid 5974] close(3 [pid 5975] <... close resumed>) = 0 [pid 5974] <... close resumed>) = 0 [pid 5975] symlink("/dev/binderfs", "./binderfs" [pid 5974] symlink("/dev/binderfs", "./binderfs" [pid 5975] <... symlink resumed>) = 0 [ 126.641472][ T5971] REISERFS (device loop5): checking transaction log (loop5) [pid 5975] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5974] <... symlink resumed>) = 0 [pid 5975] <... futex resumed>) = 0 [pid 5974] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5975] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5974] <... futex resumed>) = 0 [pid 5975] <... mmap resumed>) = 0x7fdb72913000 [pid 5974] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5975] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5974] <... mmap resumed>) = 0x7fdb72913000 [pid 5975] <... mprotect resumed>) = 0 [pid 5974] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5975] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5974] <... mprotect resumed>) = 0 [pid 5974] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5975] <... clone resumed>, parent_tid=[5977], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5977 [pid 5975] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5974] <... clone resumed>, parent_tid=[5978], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5978 [pid 5975] <... futex resumed>) = 0 [pid 5974] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5975] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5974] <... futex resumed>) = 0 [pid 5974] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5978 attached ./strace-static-x86_64: Process 5977 attached [pid 5978] set_robust_list(0x7fdb729339e0, 24 [pid 5977] set_robust_list(0x7fdb729339e0, 24 [pid 5978] <... set_robust_list resumed>) = 0 [pid 5977] <... set_robust_list resumed>) = 0 [pid 5978] memfd_create("syzkaller", 0 [pid 5977] memfd_create("syzkaller", 0 [pid 5978] <... memfd_create resumed>) = 3 [pid 5978] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5977] <... memfd_create resumed>) = 3 [pid 5978] <... mmap resumed>) = 0x7fdb6a513000 [pid 5977] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [pid 5976] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5076] <... umount2 resumed>) = 0 [pid 5978] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5977] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5976] <... write resumed>) = 4194304 [pid 5078] <... umount2 resumed>) = 0 [pid 5976] munmap(0x7fdb6a513000, 4194304) = 0 [pid 5076] umount2("./48/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5976] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5076] lstat("./48/file0", [pid 5976] <... openat resumed>) = 4 [pid 5076] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5976] ioctl(4, LOOP_SET_FD, 3 [pid 5078] umount2("./49/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5076] umount2("./48/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5078] lstat("./49/file0", [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5078] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] openat(AT_FDCWD, "./48/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5078] umount2("./49/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5076] <... openat resumed>) = 4 [pid 5078] openat(AT_FDCWD, "./49/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] fstat(4, [pid 5078] <... openat resumed>) = 4 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] fstat(4, [pid 5076] getdents64(4, [pid 5078] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5078] getdents64(4, [pid 5076] getdents64(4, [pid 5078] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5076] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5078] getdents64(4, [pid 5076] close(4 [pid 5078] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5076] <... close resumed>) = 0 [pid 5078] close(4 [pid 5076] rmdir("./48/file0" [pid 5078] <... close resumed>) = 0 [pid 5076] <... rmdir resumed>) = 0 [pid 5078] rmdir("./49/file0" [pid 5076] getdents64(3, [pid 5976] <... ioctl resumed>) = 0 [pid 5078] <... rmdir resumed>) = 0 [pid 5076] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5976] close(3 [pid 5078] getdents64(3, [pid 5076] close(3 [pid 5976] <... close resumed>) = 0 [pid 5078] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5076] <... close resumed>) = 0 [pid 5976] mkdir("./file0", 0777 [pid 5078] close(3 [pid 5076] rmdir("./48" [pid 5976] <... mkdir resumed>) = 0 [pid 5078] <... close resumed>) = 0 [pid 5076] <... rmdir resumed>) = 0 [pid 5976] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5078] rmdir("./49" [pid 5076] mkdir("./49", 0777 [pid 5078] <... rmdir resumed>) = 0 [pid 5076] <... mkdir resumed>) = 0 [pid 5078] mkdir("./50", 0777 [pid 5076] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5078] <... mkdir resumed>) = 0 [pid 5076] <... openat resumed>) = 3 [pid 5078] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5076] ioctl(3, LOOP_CLR_FD [pid 5078] <... openat resumed>) = 3 [pid 5076] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5078] ioctl(3, LOOP_CLR_FD [pid 5076] close(3 [pid 5078] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5076] <... close resumed>) = 0 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5980 [ 126.894330][ T5976] loop1: detected capacity change from 0 to 8192 [pid 5078] close(3) = 0 [pid 5078] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5981 ./strace-static-x86_64: Process 5981 attached [pid 5981] set_robust_list(0x5555571745e0, 24) = 0 [pid 5981] chdir("./50") = 0 [pid 5981] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5981] setpgid(0, 0 [pid 5977] <... write resumed>) = 4194304 [pid 5981] <... setpgid resumed>) = 0 [pid 5977] munmap(0x7fdb6a513000, 4194304./strace-static-x86_64: Process 5980 attached [pid 5981] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5977] <... munmap resumed>) = 0 [pid 5977] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5977] ioctl(4, LOOP_SET_FD, 3 [pid 5981] <... openat resumed>) = 3 [pid 5981] write(3, "1000", 4 [pid 5980] set_robust_list(0x5555571745e0, 24 [pid 5981] <... write resumed>) = 4 [pid 5980] <... set_robust_list resumed>) = 0 [ 126.954058][ T5976] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 126.993191][ T5971] REISERFS (device loop5): Using r5 hash to sort names [pid 5981] close(3) = 0 [pid 5980] chdir("./49" [pid 5977] <... ioctl resumed>) = 0 [pid 5981] symlink("/dev/binderfs", "./binderfs" [pid 5980] <... chdir resumed>) = 0 [pid 5977] close(3) = 0 [pid 5977] mkdir("./file0", 0777) = 0 [pid 5977] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5981] <... symlink resumed>) = 0 [pid 5980] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5981] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5980] <... prctl resumed>) = 0 [pid 5981] <... futex resumed>) = 0 [pid 5981] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5980] setpgid(0, 0 [pid 5981] <... mmap resumed>) = 0x7fdb72913000 [pid 5980] <... setpgid resumed>) = 0 [pid 5981] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5980] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5981] <... mprotect resumed>) = 0 [pid 5980] <... openat resumed>) = 3 [pid 5981] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5980] write(3, "1000", 4) = 4 [pid 5981] <... clone resumed>, parent_tid=[5982], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5982 [pid 5980] close(3 [pid 5981] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 5982 attached ) = 0 [pid 5980] <... close resumed>) = 0 [pid 5981] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5980] symlink("/dev/binderfs", "./binderfs" [pid 5978] <... write resumed>) = 4194304 [ 127.006409][ T5977] loop0: detected capacity change from 0 to 8192 [ 127.015713][ T5976] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 127.033175][ T5971] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 5978] munmap(0x7fdb6a513000, 4194304) = 0 [pid 5978] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 5978] ioctl(4, LOOP_SET_FD, 3 [pid 5982] set_robust_list(0x7fdb729339e0, 24 [pid 5980] <... symlink resumed>) = 0 [pid 5978] <... ioctl resumed>) = 0 [pid 5978] close(3) = 0 [pid 5978] mkdir("./file0", 0777 [pid 5982] <... set_robust_list resumed>) = 0 [pid 5980] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5982] memfd_create("syzkaller", 0 [pid 5980] <... futex resumed>) = 0 [pid 5982] <... memfd_create resumed>) = 3 [pid 5980] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5982] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5980] <... mmap resumed>) = 0x7fdb72913000 [pid 5982] <... mmap resumed>) = 0x7fdb6a513000 [pid 5971] <... mount resumed>) = 0 [pid 5978] <... mkdir resumed>) = 0 [pid 5978] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5980] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5980] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5985], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5985 [pid 5980] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5980] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5971] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5971] chdir("./file0") = 0 [pid 5971] ioctl(4, LOOP_CLR_FD) = 0 [ 127.053188][ T5977] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 127.065571][ T5978] loop3: detected capacity change from 0 to 8192 [ 127.068368][ T5976] REISERFS (device loop1): using ordered data mode [ 127.082204][ T5977] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 127.088643][ T5976] reiserfs: using flush barriers [pid 5971] close(4) = 0 ./strace-static-x86_64: Process 5985 attached [pid 5971] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5985] set_robust_list(0x7fdb729339e0, 24 [pid 5971] <... futex resumed>) = 1 [pid 5970] <... futex resumed>) = 0 [pid 5985] <... set_robust_list resumed>) = 0 [pid 5971] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5970] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5985] memfd_create("syzkaller", 0 [pid 5982] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5971] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5970] <... futex resumed>) = 0 [pid 5985] <... memfd_create resumed>) = 3 [pid 5971] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5970] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5985] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5971] <... open resumed>) = 4 [ 127.114444][ T5978] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5985] <... mmap resumed>) = 0x7fdb6a513000 [pid 5971] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5970] <... futex resumed>) = 0 [pid 5970] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5971] ioctl(4, FS_IOC_GETVERSION [pid 5970] <... futex resumed>) = 0 [pid 5970] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5971] <... ioctl resumed>, 0x20000080) = 0 [pid 5971] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5970] <... futex resumed>) = 0 [pid 5970] exit_group(0) = ? [pid 5971] +++ exited with 0 +++ [pid 5970] +++ exited with 0 +++ [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5970, si_uid=0, si_status=0, si_utime=0, si_stime=22 /* 0.22 s */} --- [pid 5079] umount2("./48", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./48", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [ 127.151345][ T5976] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 127.164636][ T5978] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 127.179304][ T5977] REISERFS (device loop0): using ordered data mode [ 127.189970][ T5976] REISERFS (device loop1): checking transaction log (loop1) [ 127.204367][ T5977] reiserfs: using flush barriers [pid 5079] fstat(3, [pid 5985] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5079] umount2("./48/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] lstat("./48/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] unlink("./48/binderfs") = 0 [pid 5079] umount2("./48/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5982] <... write resumed>) = 4194304 [ 127.205874][ T5978] REISERFS (device loop3): using ordered data mode [ 127.216738][ T5978] reiserfs: using flush barriers [ 127.223243][ T5978] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 127.240926][ T5978] REISERFS (device loop3): checking transaction log (loop3) [pid 5982] munmap(0x7fdb6a513000, 4194304) = 0 [pid 5982] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [ 127.288111][ T5977] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5982] ioctl(4, LOOP_SET_FD, 3 [pid 5985] <... write resumed>) = 4194304 [pid 5982] <... ioctl resumed>) = 0 [pid 5982] close(3) = 0 [pid 5982] mkdir("./file0", 0777) = 0 [ 127.332355][ T5982] loop4: detected capacity change from 0 to 8192 [ 127.356911][ T5978] REISERFS (device loop3): Using r5 hash to sort names [pid 5982] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5978] <... mount resumed>) = 0 [pid 5079] <... umount2 resumed>) = 0 [pid 5978] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5985] munmap(0x7fdb6a513000, 4194304 [pid 5079] umount2("./48/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5985] <... munmap resumed>) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5985] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5079] lstat("./48/file0", [pid 5985] <... openat resumed>) = 4 [pid 5079] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5985] ioctl(4, LOOP_SET_FD, 3 [pid 5079] umount2("./48/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5978] chdir("./file0") = 0 [pid 5978] ioctl(4, LOOP_CLR_FD) = 0 [pid 5978] close(4) = 0 [pid 5978] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5974] <... futex resumed>) = 0 [ 127.383944][ T5978] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 127.386825][ T5982] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 127.394979][ T5977] REISERFS (device loop0): checking transaction log (loop0) [pid 5978] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5974] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5978] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5974] <... futex resumed>) = 0 [pid 5978] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5974] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5978] <... open resumed>) = 4 [pid 5978] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5974] <... futex resumed>) = 0 [pid 5978] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5974] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5978] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5974] <... futex resumed>) = 0 [pid 5978] ioctl(4, FS_IOC_GETVERSION [pid 5974] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5978] <... ioctl resumed>, 0x20000080) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5978] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] openat(AT_FDCWD, "./48/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5978] <... futex resumed>) = 1 [pid 5974] <... futex resumed>) = 0 [pid 5079] <... openat resumed>) = 4 [pid 5978] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5974] exit_group(0 [pid 5079] fstat(4, [pid 5978] <... futex resumed>) = ? [pid 5974] <... exit_group resumed>) = ? [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5978] +++ exited with 0 +++ [pid 5974] +++ exited with 0 +++ [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5974, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=11 /* 0.11 s */} --- [pid 5077] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5079] getdents64(4, [pid 5077] umount2("./49", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] getdents64(4, [pid 5077] openat(AT_FDCWD, "./49", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5077] <... openat resumed>) = 3 [pid 5079] close(4 [pid 5077] fstat(3, [pid 5079] <... close resumed>) = 0 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] rmdir("./48/file0" [pid 5077] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5079] <... rmdir resumed>) = 0 [pid 5079] getdents64(3, [pid 5077] umount2("./49/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5985] <... ioctl resumed>) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] close(3 [pid 5077] lstat("./49/binderfs", [pid 5985] close(3 [pid 5079] <... close resumed>) = 0 [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5985] <... close resumed>) = 0 [pid 5079] rmdir("./48" [pid 5077] unlink("./49/binderfs" [pid 5985] mkdir("./file0", 0777 [pid 5079] <... rmdir resumed>) = 0 [pid 5077] <... unlink resumed>) = 0 [pid 5985] <... mkdir resumed>) = 0 [pid 5079] mkdir("./49", 0777 [pid 5077] umount2("./49/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5985] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5079] <... mkdir resumed>) = 0 [pid 5079] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [ 127.428405][ T5985] loop2: detected capacity change from 0 to 8192 [pid 5079] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5079] close(3) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5988 ./strace-static-x86_64: Process 5988 attached [pid 5988] set_robust_list(0x5555571745e0, 24) = 0 [pid 5988] chdir("./49") = 0 [pid 5988] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5988] setpgid(0, 0) = 0 [pid 5988] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5988] write(3, "1000", 4) = 4 [pid 5988] close(3) = 0 [pid 5988] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5988] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5988] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [ 127.505316][ T5982] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 127.508511][ T5985] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 127.516775][ T5982] REISERFS (device loop4): using ordered data mode [ 127.536436][ T5982] reiserfs: using flush barriers [pid 5988] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5988] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5989], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5989 [pid 5988] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 127.555777][ T5985] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 127.555818][ T5982] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 127.582063][ T5985] REISERFS (device loop2): using ordered data mode [ 127.592710][ T5985] reiserfs: using flush barriers [pid 5988] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5989 attached [pid 5989] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 5989] memfd_create("syzkaller", 0) = 3 [pid 5989] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [pid 5976] <... mount resumed>) = 0 [ 127.600612][ T5985] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 127.618083][ T5976] REISERFS (device loop1): Using r5 hash to sort names [ 127.625631][ T5976] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 127.635971][ T5982] REISERFS (device loop4): checking transaction log (loop4) [pid 5976] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5976] chdir("./file0") = 0 [pid 5976] ioctl(4, LOOP_CLR_FD) = 0 [pid 5976] close(4) = 0 [pid 5976] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5973] <... futex resumed>) = 0 [pid 5976] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5973] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5976] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5973] <... futex resumed>) = 0 [pid 5976] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5973] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5976] <... open resumed>) = 4 [pid 5976] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5973] <... futex resumed>) = 0 [ 127.659689][ T5985] REISERFS (device loop2): checking transaction log (loop2) [pid 5976] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5973] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5976] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5976] ioctl(4, FS_IOC_GETVERSION [pid 5973] <... futex resumed>) = 0 [pid 5976] <... ioctl resumed>, 0x20000080) = 0 [pid 5973] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5976] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5973] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5976] <... futex resumed>) = 0 [pid 5973] exit_group(0) = ? [pid 5976] +++ exited with 0 +++ [pid 5973] +++ exited with 0 +++ [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5973, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=21 /* 0.21 s */} --- [pid 5075] umount2("./48", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5075] openat(AT_FDCWD, "./48", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5075] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5075] umount2("./48/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5075] lstat("./48/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] unlink("./48/binderfs") = 0 [pid 5075] umount2("./48/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5989] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5077] <... umount2 resumed>) = 0 [pid 5077] umount2("./49/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] lstat("./49/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] umount2("./49/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] openat(AT_FDCWD, "./49/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5077] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [ 127.788211][ T5982] REISERFS (device loop4): Using r5 hash to sort names [ 127.819358][ T5982] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [pid 5077] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5077] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5077] close(4) = 0 [pid 5077] rmdir("./49/file0") = 0 [pid 5077] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5077] close(3) = 0 [pid 5077] rmdir("./49" [pid 5982] <... mount resumed>) = 0 [pid 5077] <... rmdir resumed>) = 0 [pid 5982] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5077] mkdir("./50", 0777 [pid 5982] <... openat resumed>) = 3 [pid 5077] <... mkdir resumed>) = 0 [pid 5982] chdir("./file0" [pid 5077] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5077] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5077] close(3) = 0 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 5990 [pid 5982] <... chdir resumed>) = 0 ./strace-static-x86_64: Process 5990 attached [pid 5982] ioctl(4, LOOP_CLR_FD [pid 5990] set_robust_list(0x5555571745e0, 24 [pid 5982] <... ioctl resumed>) = 0 [pid 5990] <... set_robust_list resumed>) = 0 [pid 5990] chdir("./50") = 0 [pid 5982] close(4 [pid 5990] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5982] <... close resumed>) = 0 [pid 5990] <... prctl resumed>) = 0 [pid 5982] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5990] setpgid(0, 0 [pid 5982] <... futex resumed>) = 1 [pid 5981] <... futex resumed>) = 0 [pid 5990] <... setpgid resumed>) = 0 [pid 5982] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5981] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5990] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5982] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5981] <... futex resumed>) = 0 [pid 5990] <... openat resumed>) = 3 [pid 5982] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5981] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5990] write(3, "1000", 4 [pid 5982] <... open resumed>) = 4 [pid 5990] <... write resumed>) = 4 [ 127.839929][ T5977] REISERFS (device loop0): Using r5 hash to sort names [ 127.876784][ T5977] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5982] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5990] close(3 [pid 5982] <... futex resumed>) = 1 [pid 5981] <... futex resumed>) = 0 [pid 5990] <... close resumed>) = 0 [pid 5982] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5981] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5990] symlink("/dev/binderfs", "./binderfs" [pid 5982] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5981] <... futex resumed>) = 0 [pid 5990] <... symlink resumed>) = 0 [pid 5982] ioctl(4, FS_IOC_GETVERSION [pid 5981] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5990] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5982] <... ioctl resumed>, 0x20000080) = 0 [pid 5990] <... futex resumed>) = 0 [pid 5982] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5990] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5982] <... futex resumed>) = 1 [pid 5981] <... futex resumed>) = 0 [pid 5990] <... mmap resumed>) = 0x7fdb72913000 [pid 5982] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5981] exit_group(0 [pid 5990] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5982] <... futex resumed>) = ? [pid 5981] <... exit_group resumed>) = ? [pid 5990] <... mprotect resumed>) = 0 [pid 5982] +++ exited with 0 +++ [pid 5981] +++ exited with 0 +++ [pid 5977] <... mount resumed>) = 0 [pid 5990] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5977] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5078] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5981, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=17 /* 0.17 s */} --- [pid 5990] <... clone resumed>, parent_tid=[5991], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5991 [pid 5977] chdir("./file0" [pid 5078] umount2("./50", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5990] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5977] <... chdir resumed>) = 0 [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5990] <... futex resumed>) = 0 [pid 5989] <... write resumed>) = 4194304 [pid 5977] ioctl(4, LOOP_CLR_FD [pid 5078] openat(AT_FDCWD, "./50", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5990] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5977] <... ioctl resumed>) = 0 [pid 5078] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5991 attached [pid 5977] close(4 [pid 5078] fstat(3, [pid 5991] set_robust_list(0x7fdb729339e0, 24 [pid 5977] <... close resumed>) = 0 [pid 5078] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5991] <... set_robust_list resumed>) = 0 [pid 5977] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] getdents64(3, [pid 5991] memfd_create("syzkaller", 0 [pid 5977] <... futex resumed>) = 1 [pid 5975] <... futex resumed>) = 0 [pid 5078] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5991] <... memfd_create resumed>) = 3 [pid 5977] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5975] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] umount2("./50/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5991] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5977] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5975] <... futex resumed>) = 0 [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5991] <... mmap resumed>) = 0x7fdb6a513000 [pid 5977] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5975] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5078] lstat("./50/binderfs", [pid 5977] <... open resumed>) = 4 [pid 5078] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5977] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] unlink("./50/binderfs" [pid 5977] <... futex resumed>) = 1 [pid 5975] <... futex resumed>) = 0 [pid 5078] <... unlink resumed>) = 0 [pid 5977] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5975] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] umount2("./50/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5977] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5975] <... futex resumed>) = 0 [pid 5977] ioctl(4, FS_IOC_GETVERSION [pid 5975] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5989] munmap(0x7fdb6a513000, 4194304 [pid 5977] <... ioctl resumed>, 0x20000080) = 0 [pid 5989] <... munmap resumed>) = 0 [pid 5977] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5975] <... futex resumed>) = 0 [pid 5989] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5977] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5975] exit_group(0 [pid 5989] <... openat resumed>) = 4 [pid 5977] <... futex resumed>) = ? [pid 5975] <... exit_group resumed>) = ? [ 127.944079][ T5985] REISERFS (device loop2): Using r5 hash to sort names [ 127.951931][ T5985] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 5989] ioctl(4, LOOP_SET_FD, 3 [pid 5977] +++ exited with 0 +++ [pid 5975] +++ exited with 0 +++ [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5975, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=15 /* 0.15 s */} --- [pid 5074] umount2("./49", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] openat(AT_FDCWD, "./49", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5074] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] getdents64(3, [pid 5075] <... umount2 resumed>) = 0 [pid 5074] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5074] umount2("./49/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] umount2("./48/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] lstat("./49/binderfs", [pid 5985] <... mount resumed>) = 0 [pid 5075] lstat("./48/file0", [pid 5074] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5985] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5075] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] unlink("./49/binderfs" [pid 5985] <... openat resumed>) = 3 [pid 5075] umount2("./48/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] <... unlink resumed>) = 0 [pid 5989] <... ioctl resumed>) = 0 [pid 5985] chdir("./file0" [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] umount2("./49/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5989] close(3 [pid 5985] <... chdir resumed>) = 0 [pid 5075] openat(AT_FDCWD, "./48/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5989] <... close resumed>) = 0 [pid 5985] ioctl(4, LOOP_CLR_FD [pid 5989] mkdir("./file0", 0777 [pid 5985] <... ioctl resumed>) = 0 [pid 5075] <... openat resumed>) = 4 [pid 5989] <... mkdir resumed>) = 0 [pid 5985] close(4 [pid 5075] fstat(4, [pid 5989] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5985] <... close resumed>) = 0 [pid 5985] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5985] <... futex resumed>) = 1 [pid 5980] <... futex resumed>) = 0 [pid 5985] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5980] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5075] getdents64(4, [pid 5985] <... open resumed>) = 4 [pid 5980] <... futex resumed>) = 0 [ 128.000054][ T5989] loop5: detected capacity change from 0 to 8192 [pid 5985] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5980] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5075] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5985] <... futex resumed>) = 0 [pid 5980] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5075] getdents64(4, [pid 5985] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5980] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5980] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5985] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5075] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5985] ioctl(4, FS_IOC_GETVERSION [pid 5075] close(4 [pid 5985] <... ioctl resumed>, 0x20000080) = 0 [pid 5075] <... close resumed>) = 0 [pid 5985] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5075] rmdir("./48/file0" [pid 5985] <... futex resumed>) = 1 [pid 5980] <... futex resumed>) = 0 [pid 5075] <... rmdir resumed>) = 0 [pid 5985] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5980] exit_group(0 [pid 5075] getdents64(3, [pid 5985] <... futex resumed>) = ? [pid 5980] <... exit_group resumed>) = ? [pid 5075] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5985] +++ exited with 0 +++ [pid 5980] +++ exited with 0 +++ [pid 5075] close(3) = 0 [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5980, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=20 /* 0.20 s */} --- [pid 5075] rmdir("./48" [pid 5076] restart_syscall(<... resuming interrupted clone ...> [pid 5075] <... rmdir resumed>) = 0 [pid 5076] <... restart_syscall resumed>) = 0 [pid 5075] mkdir("./49", 0777) = 0 [pid 5075] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5076] umount2("./49", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... openat resumed>) = 3 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] ioctl(3, LOOP_CLR_FD [pid 5076] openat(AT_FDCWD, "./49", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5076] <... openat resumed>) = 3 [pid 5075] close(3 [pid 5076] fstat(3, [pid 5075] <... close resumed>) = 0 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [ 128.071738][ T5989] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 128.086248][ T5989] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5075] <... clone resumed>, child_tidptr=0x5555571745d0) = 5993 [pid 5076] umount2("./49/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5076] lstat("./49/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5991] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5076] unlink("./49/binderfs"./strace-static-x86_64: Process 5993 attached ) = 0 [pid 5993] set_robust_list(0x5555571745e0, 24 [pid 5076] umount2("./49/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5993] <... set_robust_list resumed>) = 0 [pid 5993] chdir("./49") = 0 [pid 5993] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5993] setpgid(0, 0) = 0 [pid 5993] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5993] write(3, "1000", 4) = 4 [pid 5993] close(3) = 0 [pid 5991] <... write resumed>) = 4194304 [pid 5993] symlink("/dev/binderfs", "./binderfs" [pid 5991] munmap(0x7fdb6a513000, 4194304 [pid 5993] <... symlink resumed>) = 0 [ 128.116405][ T5989] REISERFS (device loop5): using ordered data mode [pid 5991] <... munmap resumed>) = 0 [pid 5078] <... umount2 resumed>) = 0 [pid 5993] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5991] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5993] <... futex resumed>) = 0 [pid 5991] <... openat resumed>) = 4 [pid 5074] <... umount2 resumed>) = 0 [pid 5993] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5991] ioctl(4, LOOP_SET_FD, 3 [pid 5074] umount2("./49/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5993] <... mmap resumed>) = 0x7fdb72913000 [pid 5993] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5991] <... ioctl resumed>) = 0 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5993] <... mprotect resumed>) = 0 [pid 5074] lstat("./49/file0", [pid 5991] close(3 [pid 5993] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5991] <... close resumed>) = 0 [pid 5074] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5993] <... clone resumed>, parent_tid=[5994], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5994 [pid 5991] mkdir("./file0", 0777 [pid 5993] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5074] umount2("./49/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5993] <... futex resumed>) = 0 [pid 5993] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5991] <... mkdir resumed>) = 0 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5994 attached [pid 5991] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5074] openat(AT_FDCWD, "./49/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5994] set_robust_list(0x7fdb729339e0, 24 [pid 5074] <... openat resumed>) = 4 [pid 5994] <... set_robust_list resumed>) = 0 [pid 5078] umount2("./50/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] fstat(4, [pid 5994] memfd_create("syzkaller", 0 [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] lstat("./50/file0", [pid 5994] <... memfd_create resumed>) = 3 [pid 5078] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] getdents64(4, [pid 5078] umount2("./50/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 128.177977][ T5989] reiserfs: using flush barriers [ 128.186004][ T5991] loop3: detected capacity change from 0 to 8192 [ 128.206446][ T5991] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5078] openat(AT_FDCWD, "./50/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5994] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5078] fstat(4, [pid 5074] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5994] <... mmap resumed>) = 0x7fdb6a513000 [pid 5078] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] getdents64(4, [pid 5074] getdents64(4, [pid 5078] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5074] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5078] getdents64(4, [pid 5074] close(4 [pid 5078] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5078] close(4 [pid 5074] <... close resumed>) = 0 [pid 5078] <... close resumed>) = 0 [ 128.212204][ T5989] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 128.233403][ T5991] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 128.266651][ T5991] REISERFS (device loop3): using ordered data mode [pid 5078] rmdir("./50/file0" [pid 5074] rmdir("./49/file0" [pid 5994] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5078] <... rmdir resumed>) = 0 [pid 5078] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5078] close(3) = 0 [pid 5078] rmdir("./50") = 0 [pid 5078] mkdir("./51", 0777) = 0 [pid 5078] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5076] <... umount2 resumed>) = 0 [pid 5074] <... rmdir resumed>) = 0 [pid 5078] <... openat resumed>) = 3 [pid 5078] ioctl(3, LOOP_CLR_FD [pid 5074] getdents64(3, [pid 5078] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5078] close(3) = 0 [pid 5074] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5078] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5074] close(3 [pid 5078] <... clone resumed>, child_tidptr=0x5555571745d0) = 5996 [pid 5074] <... close resumed>) = 0 [pid 5074] rmdir("./49"./strace-static-x86_64: Process 5996 attached ) = 0 [pid 5996] set_robust_list(0x5555571745e0, 24 [pid 5074] mkdir("./50", 0777 [pid 5996] <... set_robust_list resumed>) = 0 [pid 5996] chdir("./51" [pid 5074] <... mkdir resumed>) = 0 [pid 5996] <... chdir resumed>) = 0 [pid 5074] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5996] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5074] <... openat resumed>) = 3 [pid 5996] setpgid(0, 0 [pid 5074] ioctl(3, LOOP_CLR_FD [pid 5996] <... setpgid resumed>) = 0 [pid 5076] umount2("./49/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5996] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5996] <... openat resumed>) = 3 [pid 5076] lstat("./49/file0", [pid 5074] close(3 [pid 5996] write(3, "1000", 4 [pid 5076] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5996] <... write resumed>) = 4 [pid 5076] umount2("./49/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] <... close resumed>) = 0 [pid 5996] close(3 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5996] <... close resumed>) = 0 [ 128.271615][ T5989] REISERFS (device loop5): checking transaction log (loop5) [ 128.273181][ T5991] reiserfs: using flush barriers [ 128.294702][ T5991] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 128.312121][ T5991] REISERFS (device loop3): checking transaction log (loop3) [pid 5076] openat(AT_FDCWD, "./49/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5996] symlink("/dev/binderfs", "./binderfs" [pid 5076] <... openat resumed>) = 4 [pid 5996] <... symlink resumed>) = 0 [pid 5076] fstat(4, [pid 5996] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] <... clone resumed>, child_tidptr=0x5555571745d0) = 5997 ./strace-static-x86_64: Process 5997 attached [pid 5996] <... futex resumed>) = 0 [pid 5076] getdents64(4, [pid 5997] set_robust_list(0x5555571745e0, 24 [pid 5996] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5076] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5996] <... mmap resumed>) = 0x7fdb72913000 [pid 5076] getdents64(4, [pid 5996] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5076] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5996] <... mprotect resumed>) = 0 [pid 5076] close(4 [pid 5996] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5076] <... close resumed>) = 0 [pid 5997] <... set_robust_list resumed>) = 0 [pid 5076] rmdir("./49/file0" [pid 5997] chdir("./50" [pid 5996] <... clone resumed>, parent_tid=[5998], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 5998 [pid 5076] <... rmdir resumed>) = 0 [pid 5997] <... chdir resumed>) = 0 [pid 5996] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5076] getdents64(3, [pid 5997] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5996] <... futex resumed>) = 0 [pid 5076] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5997] <... prctl resumed>) = 0 [pid 5996] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5076] close(3./strace-static-x86_64: Process 5998 attached [pid 5997] setpgid(0, 0 [pid 5076] <... close resumed>) = 0 [pid 5998] set_robust_list(0x7fdb729339e0, 24 [pid 5997] <... setpgid resumed>) = 0 [pid 5076] rmdir("./49" [pid 5998] <... set_robust_list resumed>) = 0 [pid 5997] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5076] <... rmdir resumed>) = 0 [pid 5998] memfd_create("syzkaller", 0 [pid 5997] <... openat resumed>) = 3 [pid 5991] <... mount resumed>) = 0 [pid 5076] mkdir("./50", 0777 [pid 5998] <... memfd_create resumed>) = 3 [pid 5997] write(3, "1000", 4 [pid 5991] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5076] <... mkdir resumed>) = 0 [pid 5998] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5997] <... write resumed>) = 4 [pid 5991] <... openat resumed>) = 3 [ 128.367581][ T5991] REISERFS (device loop3): Using r5 hash to sort names [ 128.380347][ T5991] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [pid 5076] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5998] <... mmap resumed>) = 0x7fdb6a513000 [pid 5997] close(3 [pid 5991] chdir("./file0" [pid 5076] <... openat resumed>) = 3 [pid 5997] <... close resumed>) = 0 [pid 5991] <... chdir resumed>) = 0 [pid 5076] ioctl(3, LOOP_CLR_FD [pid 5997] symlink("/dev/binderfs", "./binderfs" [pid 5991] ioctl(4, LOOP_CLR_FD [pid 5076] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5076] close(3 [pid 5997] <... symlink resumed>) = 0 [pid 5994] <... write resumed>) = 4194304 [pid 5991] <... ioctl resumed>) = 0 [pid 5076] <... close resumed>) = 0 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5997] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5994] munmap(0x7fdb6a513000, 4194304 [pid 5991] close(4 [pid 5076] <... clone resumed>, child_tidptr=0x5555571745d0) = 5999 [pid 5997] <... futex resumed>) = 0 [pid 5991] <... close resumed>) = 0 [pid 5997] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5994] <... munmap resumed>) = 0 [pid 5991] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5997] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5994] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5991] <... futex resumed>) = 1 [pid 5990] <... futex resumed>) = 0 ./strace-static-x86_64: Process 5999 attached [pid 5991] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5990] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5999] set_robust_list(0x5555571745e0, 24 [pid 5997] <... mprotect resumed>) = 0 [pid 5990] <... futex resumed>) = 0 [pid 5999] <... set_robust_list resumed>) = 0 [pid 5991] <... open resumed>) = 4 [pid 5990] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5999] chdir("./50" [pid 5997] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5991] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5990] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5994] <... openat resumed>) = 4 [pid 5999] <... chdir resumed>) = 0 [pid 5991] <... futex resumed>) = 0 [pid 5990] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5999] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5997] <... clone resumed>, parent_tid=[6000], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 6000 [pid 5991] ioctl(4, FS_IOC_GETVERSION [pid 5990] <... futex resumed>) = 0 [pid 5999] <... prctl resumed>) = 0 [pid 5997] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5991] <... ioctl resumed>, 0x20000080) = 0 [pid 5990] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5999] setpgid(0, 0 [pid 5997] <... futex resumed>) = 0 [pid 5994] ioctl(4, LOOP_SET_FD, 3 [pid 5991] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5990] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) ./strace-static-x86_64: Process 6000 attached [pid 5999] <... setpgid resumed>) = 0 [pid 5997] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5991] <... futex resumed>) = 0 [pid 5990] exit_group(0 [pid 6000] set_robust_list(0x7fdb729339e0, 24 [pid 5999] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5990] <... exit_group resumed>) = ? [pid 6000] <... set_robust_list resumed>) = 0 [pid 5999] <... openat resumed>) = 3 [pid 6000] memfd_create("syzkaller", 0 [pid 5999] write(3, "1000", 4 [pid 6000] <... memfd_create resumed>) = 3 [pid 5999] <... write resumed>) = 4 [pid 5994] <... ioctl resumed>) = 0 [pid 6000] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5999] close(3 [pid 6000] <... mmap resumed>) = 0x7fdb6a513000 [pid 5999] <... close resumed>) = 0 [pid 5999] symlink("/dev/binderfs", "./binderfs" [pid 5994] close(3 [pid 5991] +++ exited with 0 +++ [pid 5990] +++ exited with 0 +++ [pid 5999] <... symlink resumed>) = 0 [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5990, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=19 /* 0.19 s */} --- [pid 5999] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5994] <... close resumed>) = 0 [pid 5989] <... mount resumed>) = 0 [pid 5077] restart_syscall(<... resuming interrupted clone ...> [pid 5999] <... futex resumed>) = 0 [pid 5994] mkdir("./file0", 0777 [pid 5989] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5077] <... restart_syscall resumed>) = 0 [pid 5999] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5999] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5077] umount2("./50", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5999] <... mprotect resumed>) = 0 [pid 5994] <... mkdir resumed>) = 0 [pid 5989] <... openat resumed>) = 3 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5999] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5077] openat(AT_FDCWD, "./50", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5994] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5989] chdir("./file0" [pid 5077] <... openat resumed>) = 3 [pid 5999] <... clone resumed>, parent_tid=[6001], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 6001 [pid 5077] fstat(3, [pid 5999] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5999] <... futex resumed>) = 0 [pid 5989] <... chdir resumed>) = 0 [pid 5077] getdents64(3, [pid 5999] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5989] ioctl(4, LOOP_CLR_FD [pid 5077] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5989] <... ioctl resumed>) = 0 [pid 5077] umount2("./50/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5989] close(4 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 128.446785][ T5989] REISERFS (device loop5): Using r5 hash to sort names [ 128.471513][ T5994] loop1: detected capacity change from 0 to 8192 [ 128.479634][ T5989] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 5998] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5989] <... close resumed>) = 0 [pid 5077] lstat("./50/binderfs", ./strace-static-x86_64: Process 6001 attached {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 6001] set_robust_list(0x7fdb729339e0, 24 [pid 5077] unlink("./50/binderfs" [pid 6001] <... set_robust_list resumed>) = 0 [pid 5077] <... unlink resumed>) = 0 [pid 6001] memfd_create("syzkaller", 0 [pid 5077] umount2("./50/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6001] <... memfd_create resumed>) = 3 [pid 5989] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6001] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5989] <... futex resumed>) = 1 [pid 5988] <... futex resumed>) = 0 [pid 6001] <... mmap resumed>) = 0x7fdb6a513000 [pid 5988] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5988] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5989] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [ 128.518534][ T5994] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 128.544786][ T5994] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [pid 5989] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5988] <... futex resumed>) = 0 [pid 5988] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5988] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5989] ioctl(4, FS_IOC_GETVERSION, 0x20000080) = 0 [pid 5989] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5988] <... futex resumed>) = 0 [pid 5989] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5988] exit_group(0) = ? [pid 5989] <... futex resumed>) = ? [pid 5998] <... write resumed>) = 4194304 [pid 5989] +++ exited with 0 +++ [pid 5988] +++ exited with 0 +++ [pid 5998] munmap(0x7fdb6a513000, 4194304 [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5988, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=17 /* 0.17 s */} --- [pid 5079] umount2("./49", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5998] <... munmap resumed>) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./49", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 6000] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5998] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5079] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5998] <... openat resumed>) = 4 [pid 5079] getdents64(3, [pid 5998] ioctl(4, LOOP_SET_FD, 3 [pid 5079] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [ 128.567409][ T5994] REISERFS (device loop1): using ordered data mode [ 128.583791][ T5994] reiserfs: using flush barriers [pid 5079] umount2("./49/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] lstat("./49/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] unlink("./49/binderfs") = 0 [pid 5079] umount2("./49/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6001] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5998] <... ioctl resumed>) = 0 [pid 5998] close(3) = 0 [pid 5998] mkdir("./file0", 0777) = 0 [pid 5998] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5077] <... umount2 resumed>) = 0 [ 128.615770][ T5998] loop4: detected capacity change from 0 to 8192 [ 128.618138][ T5994] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5077] umount2("./50/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] lstat("./50/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] umount2("./50/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] openat(AT_FDCWD, "./50/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5077] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6001] <... write resumed>) = 4194304 [pid 5077] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5077] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5077] close(4) = 0 [pid 5077] rmdir("./50/file0") = 0 [pid 5077] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [ 128.680494][ T5998] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5077] close(3 [pid 5079] <... umount2 resumed>) = 0 [pid 5077] <... close resumed>) = 0 [pid 5077] rmdir("./50") = 0 [pid 5077] mkdir("./51", 0777) = 0 [pid 5077] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5077] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5079] umount2("./49/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] close(3 [pid 6001] munmap(0x7fdb6a513000, 4194304 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... close resumed>) = 0 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 6004 [pid 6001] <... munmap resumed>) = 0 [ 128.733539][ T5998] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 128.736544][ T5994] REISERFS (device loop1): checking transaction log (loop1) [ 128.765359][ T5998] REISERFS (device loop4): using ordered data mode [pid 5079] lstat("./49/file0", ./strace-static-x86_64: Process 6004 attached [pid 6001] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5079] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6004] set_robust_list(0x5555571745e0, 24) = 0 [pid 6004] chdir("./51") = 0 [pid 6004] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6004] setpgid(0, 0) = 0 [pid 6004] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6004] write(3, "1000", 4) = 4 [pid 6001] <... openat resumed>) = 4 [pid 5079] umount2("./49/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6004] close(3 [pid 6001] ioctl(4, LOOP_SET_FD, 3 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6004] <... close resumed>) = 0 [pid 6004] symlink("/dev/binderfs", "./binderfs") = 0 [ 128.782872][ T5998] reiserfs: using flush barriers [ 128.791495][ T5998] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 128.810321][ T5998] REISERFS (device loop4): checking transaction log (loop4) [pid 6004] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6004] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 5079] openat(AT_FDCWD, "./49/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6004] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 6001] <... ioctl resumed>) = 0 [pid 5079] <... openat resumed>) = 4 [pid 6004] <... mprotect resumed>) = 0 [pid 6001] close(3 [pid 5079] fstat(4, [pid 6004] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6001] <... close resumed>) = 0 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 ./strace-static-x86_64: Process 6005 attached [pid 6001] mkdir("./file0", 0777 [pid 5079] getdents64(4, [pid 6005] set_robust_list(0x7fdb729339e0, 24 [pid 6004] <... clone resumed>, parent_tid=[6005], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 6005 [pid 6001] <... mkdir resumed>) = 0 [pid 5079] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 6005] <... set_robust_list resumed>) = 0 [ 128.830164][ T6001] loop2: detected capacity change from 0 to 8192 [pid 6004] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6001] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5079] getdents64(4, [pid 6005] memfd_create("syzkaller", 0 [pid 6004] <... futex resumed>) = 0 [pid 5079] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 6005] <... memfd_create resumed>) = 3 [pid 6004] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5079] close(4 [pid 6005] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5079] <... close resumed>) = 0 [pid 6005] <... mmap resumed>) = 0x7fdb6a513000 [pid 5079] rmdir("./49/file0") = 0 [pid 5079] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5079] close(3) = 0 [pid 5079] rmdir("./49") = 0 [pid 5079] mkdir("./50", 0777) = 0 [pid 5079] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5079] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5079] close(3) = 0 [pid 6000] <... write resumed>) = 4194304 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6000] munmap(0x7fdb6a513000, 4194304) = 0 [pid 5079] <... clone resumed>, child_tidptr=0x5555571745d0) = 6007 [ 128.891906][ T6001] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 128.919312][ T6001] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 128.921042][ T5998] REISERFS (device loop4): Using r5 hash to sort names [pid 6000] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 ./strace-static-x86_64: Process 6007 attached [pid 6000] ioctl(4, LOOP_SET_FD, 3 [pid 5994] <... mount resumed>) = 0 [pid 6007] set_robust_list(0x5555571745e0, 24 [pid 5998] <... mount resumed>) = 0 [pid 6007] <... set_robust_list resumed>) = 0 [pid 6007] chdir("./50") = 0 [pid 6007] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6007] setpgid(0, 0) = 0 [pid 5998] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5994] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6007] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6007] write(3, "1000", 4) = 4 [pid 6007] close(3) = 0 [pid 6007] symlink("/dev/binderfs", "./binderfs" [ 128.929205][ T5994] REISERFS (device loop1): Using r5 hash to sort names [ 128.944098][ T5994] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 128.954644][ T5998] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 128.954750][ T6000] loop0: detected capacity change from 0 to 8192 [ 128.965544][ T6001] REISERFS (device loop2): using ordered data mode [ 128.978419][ T6001] reiserfs: using flush barriers [pid 5998] <... openat resumed>) = 3 [pid 5994] <... openat resumed>) = 3 [pid 6007] <... symlink resumed>) = 0 [pid 6005] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 6000] <... ioctl resumed>) = 0 [pid 5998] chdir("./file0" [pid 5994] chdir("./file0" [pid 6007] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6000] close(3 [pid 5998] <... chdir resumed>) = 0 [pid 5994] <... chdir resumed>) = 0 [pid 6000] <... close resumed>) = 0 [pid 5998] ioctl(4, LOOP_CLR_FD [pid 5994] ioctl(4, LOOP_CLR_FD [pid 6007] <... futex resumed>) = 0 [pid 6000] mkdir("./file0", 0777 [pid 5998] <... ioctl resumed>) = 0 [pid 5994] <... ioctl resumed>) = 0 [pid 6007] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6000] <... mkdir resumed>) = 0 [pid 5998] close(4 [pid 5994] close(4 [pid 6000] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5998] <... close resumed>) = 0 [pid 5994] <... close resumed>) = 0 [pid 5998] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5994] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5998] <... futex resumed>) = 1 [pid 5994] <... futex resumed>) = 1 [pid 5998] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5994] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6007] <... mmap resumed>) = 0x7fdb72913000 [pid 5996] <... futex resumed>) = 0 [pid 5993] <... futex resumed>) = 0 [pid 5993] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5996] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5993] <... futex resumed>) = 1 [pid 6007] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5994] <... futex resumed>) = 0 [pid 5994] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5998] <... futex resumed>) = 0 [pid 5996] <... futex resumed>) = 1 [pid 5993] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6007] <... mprotect resumed>) = 0 [pid 5998] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5996] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6007] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5998] <... open resumed>) = 4 [pid 5994] <... open resumed>) = 4 [pid 5998] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5996] <... futex resumed>) = 0 [pid 5994] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5993] <... futex resumed>) = 0 [pid 5996] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5993] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6007] <... clone resumed>, parent_tid=[6009], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 6009 [pid 5998] ioctl(4, FS_IOC_GETVERSION [pid 5996] <... futex resumed>) = 0 [pid 5994] ioctl(4, FS_IOC_GETVERSION, 0x20000080) = 0 [pid 5994] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5994] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5996] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5994] <... futex resumed>) = 0 [pid 5993] <... futex resumed>) = 1 [pid 6007] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5998] <... ioctl resumed>, 0x20000080) = 0 [pid 5994] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5993] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6007] <... futex resumed>) = 0 [pid 5998] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5993] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6007] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5998] <... futex resumed>) = 1 [pid 5996] <... futex resumed>) = 0 [pid 5993] exit_group(0 [pid 5998] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5996] exit_group(0 [pid 5994] <... futex resumed>) = ? [pid 5993] <... exit_group resumed>) = ? [pid 5998] <... futex resumed>) = ? [pid 5996] <... exit_group resumed>) = ? [pid 5994] +++ exited with 0 +++ ./strace-static-x86_64: Process 6009 attached [pid 6005] <... write resumed>) = 4194304 [pid 5998] +++ exited with 0 +++ [pid 5996] +++ exited with 0 +++ [pid 5993] +++ exited with 0 +++ [ 128.986423][ T6001] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 129.006602][ T6001] REISERFS (device loop2): checking transaction log (loop2) [pid 6009] set_robust_list(0x7fdb729339e0, 24 [pid 5078] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5996, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5993, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} --- [pid 6005] munmap(0x7fdb6a513000, 4194304) = 0 [pid 6005] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 6005] ioctl(4, LOOP_SET_FD, 3 [pid 6009] <... set_robust_list resumed>) = 0 [pid 6005] <... ioctl resumed>) = 0 [pid 6005] close(3) = 0 [pid 6005] mkdir("./file0", 0777) = 0 [pid 6005] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC, "" [ 129.040949][ T6000] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 129.042888][ T6005] loop3: detected capacity change from 0 to 8192 [pid 6009] memfd_create("syzkaller", 0 [pid 5075] umount2("./49", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5078] umount2("./51", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] openat(AT_FDCWD, "./49", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5078] openat(AT_FDCWD, "./51", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6009] <... memfd_create resumed>) = 3 [pid 5075] <... openat resumed>) = 3 [pid 5078] <... openat resumed>) = 3 [pid 5078] fstat(3, [pid 5075] fstat(3, [pid 5078] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] getdents64(3, [pid 5075] getdents64(3, [pid 5078] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5075] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 6009] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5078] umount2("./51/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5075] umount2("./49/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5078] lstat("./51/binderfs", [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6009] <... mmap resumed>) = 0x7fdb6a513000 [pid 5078] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] lstat("./49/binderfs", [pid 5078] unlink("./51/binderfs" [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5078] <... unlink resumed>) = 0 [pid 5075] unlink("./49/binderfs") = 0 [pid 5078] umount2("./51/file0", MNT_DETACH|UMOUNT_NOFOLLOW [ 129.084111][ T6000] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 129.093548][ T6000] REISERFS (device loop0): using ordered data mode [ 129.100864][ T6000] reiserfs: using flush barriers [ 129.108611][ T6000] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5075] umount2("./49/file0", MNT_DETACH|UMOUNT_NOFOLLOW [ 129.128589][ T6005] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 129.152778][ T6000] REISERFS (device loop0): checking transaction log (loop0) [pid 6009] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304) = 4194304 [pid 6009] munmap(0x7fdb6a513000, 4194304) = 0 [pid 5075] <... umount2 resumed>) = 0 [pid 6009] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5075] umount2("./49/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6009] <... openat resumed>) = 4 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 129.202941][ T6005] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 129.226699][ T6001] REISERFS (device loop2): Using r5 hash to sort names [pid 6009] ioctl(4, LOOP_SET_FD, 3 [pid 5078] <... umount2 resumed>) = 0 [pid 5075] lstat("./49/file0", [pid 5078] umount2("./51/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] umount2("./49/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5078] lstat("./51/file0", [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5078] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] openat(AT_FDCWD, "./49/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6009] <... ioctl resumed>) = 0 [pid 5078] umount2("./51/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6009] close(3 [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... openat resumed>) = 4 [pid 5078] openat(AT_FDCWD, "./51/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] fstat(4, [pid 6009] <... close resumed>) = 0 [pid 5078] <... openat resumed>) = 4 [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6009] mkdir("./file0", 0777 [pid 5078] fstat(4, [pid 5075] getdents64(4, [pid 5078] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6009] <... mkdir resumed>) = 0 [pid 5078] getdents64(4, [pid 5075] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 6009] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5078] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5075] getdents64(4, [pid 5078] getdents64(4, [pid 5075] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5078] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5075] close(4 [pid 5078] close(4 [pid 5075] <... close resumed>) = 0 [pid 5078] <... close resumed>) = 0 [pid 5075] rmdir("./49/file0" [ 129.247152][ T6009] loop5: detected capacity change from 0 to 8192 [pid 5078] rmdir("./51/file0") = 0 [pid 5075] <... rmdir resumed>) = 0 [pid 5078] getdents64(3, [pid 5075] getdents64(3, [pid 6001] <... mount resumed>) = 0 [pid 5078] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5075] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5078] close(3 [pid 5075] close(3 [pid 6001] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5078] <... close resumed>) = 0 [pid 5075] <... close resumed>) = 0 [pid 6001] <... openat resumed>) = 3 [pid 5078] rmdir("./51" [pid 5075] rmdir("./49" [pid 6001] chdir("./file0" [pid 5078] <... rmdir resumed>) = 0 [pid 6001] <... chdir resumed>) = 0 [pid 5075] <... rmdir resumed>) = 0 [pid 6001] ioctl(4, LOOP_CLR_FD [pid 5078] mkdir("./52", 0777 [pid 5075] mkdir("./50", 0777 [pid 6001] <... ioctl resumed>) = 0 [pid 6001] close(4 [pid 5078] <... mkdir resumed>) = 0 [pid 5075] <... mkdir resumed>) = 0 [pid 6001] <... close resumed>) = 0 [pid 6001] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5075] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6001] <... futex resumed>) = 1 [pid 5999] <... futex resumed>) = 0 [pid 5078] <... openat resumed>) = 3 [pid 6001] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5999] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] ioctl(3, LOOP_CLR_FD [pid 5075] <... openat resumed>) = 3 [pid 6001] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5999] <... futex resumed>) = 0 [pid 5078] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5075] ioctl(3, LOOP_CLR_FD [ 129.288302][ T6005] REISERFS (device loop3): using ordered data mode [ 129.297262][ T6009] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 129.311433][ T6001] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 129.322521][ T6005] reiserfs: using flush barriers [pid 6001] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5999] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5078] close(3 [pid 5075] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 6001] <... open resumed>) = 4 [pid 5078] <... close resumed>) = 0 [pid 5075] close(3 [pid 6001] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] <... close resumed>) = 0 [pid 6001] <... futex resumed>) = 1 [pid 5999] <... futex resumed>) = 0 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6001] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5999] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] <... clone resumed>, child_tidptr=0x5555571745d0) = 6012 [pid 6001] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5999] <... futex resumed>) = 0 [pid 5075] <... clone resumed>, child_tidptr=0x5555571745d0) = 6013 [ 129.344807][ T6009] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 129.354601][ T6009] REISERFS (device loop5): using ordered data mode [ 129.361429][ T6009] reiserfs: using flush barriers [pid 6001] ioctl(4, FS_IOC_GETVERSION [pid 5999] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 6013 attached ./strace-static-x86_64: Process 6012 attached [pid 6001] <... ioctl resumed>, 0x20000080) = 0 [pid 6013] set_robust_list(0x5555571745e0, 24) = 0 [pid 6013] chdir("./50") = 0 [pid 6013] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6013] setpgid(0, 0) = 0 [pid 6013] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6001] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6013] <... openat resumed>) = 3 [pid 6013] write(3, "1000", 4) = 4 [pid 6013] close(3) = 0 [pid 6013] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6013] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6013] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 6013] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6013] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[6014], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 6014 [pid 6013] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6013] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6001] <... futex resumed>) = 1 [pid 5999] <... futex resumed>) = 0 [pid 5999] exit_group(0 [pid 6001] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5999] <... exit_group resumed>) = ? [pid 6001] +++ exited with 0 +++ [pid 6012] set_robust_list(0x5555571745e0, 24 [pid 5999] +++ exited with 0 +++ [pid 6012] <... set_robust_list resumed>) = 0 [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5999, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=18 /* 0.18 s */} --- [pid 5076] umount2("./50", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6012] chdir("./52" [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6012] <... chdir resumed>) = 0 [pid 5076] openat(AT_FDCWD, "./50", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 6012] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5076] fstat(3, [pid 6012] <... prctl resumed>) = 0 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6012] setpgid(0, 0 [pid 5076] getdents64(3, [pid 6012] <... setpgid resumed>) = 0 [pid 5076] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5076] umount2("./50/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6012] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] lstat("./50/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] unlink("./50/binderfs") = 0 [pid 5076] umount2("./50/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6012] <... openat resumed>) = 3 [pid 6012] write(3, "1000", 4) = 4 [pid 6012] close(3) = 0 [pid 6012] symlink("/dev/binderfs", "./binderfs"./strace-static-x86_64: Process 6014 attached ) = 0 [pid 6012] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6012] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 6012] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6012] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[6015], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 6015 [pid 6012] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6014] set_robust_list(0x7fdb729339e0, 24 [pid 6012] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6014] <... set_robust_list resumed>) = 0 ./strace-static-x86_64: Process 6015 attached [pid 6015] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 6015] memfd_create("syzkaller", 0 [pid 6014] memfd_create("syzkaller", 0 [pid 6015] <... memfd_create resumed>) = 3 [pid 6014] <... memfd_create resumed>) = 3 [pid 6015] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [pid 6014] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [ 129.380688][ T6009] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 129.397458][ T6005] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 129.416339][ T6009] REISERFS (device loop5): checking transaction log (loop5) [pid 6015] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [ 129.514552][ T6005] REISERFS (device loop3): checking transaction log (loop3) [pid 6014] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5076] <... umount2 resumed>) = 0 [pid 6000] <... mount resumed>) = 0 [pid 6000] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5076] umount2("./50/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 6000] <... openat resumed>) = 3 [pid 5076] lstat("./50/file0", [pid 6000] chdir("./file0" [pid 5076] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] umount2("./50/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6000] <... chdir resumed>) = 0 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6000] ioctl(4, LOOP_CLR_FD [pid 5076] openat(AT_FDCWD, "./50/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5076] fstat(4, [pid 6000] <... ioctl resumed>) = 0 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6000] close(4 [pid 6014] <... write resumed>) = 4194304 [pid 6009] <... mount resumed>) = 0 [pid 6000] <... close resumed>) = 0 [pid 6015] <... write resumed>) = 4194304 [ 129.604533][ T6000] REISERFS (device loop0): Using r5 hash to sort names [ 129.612323][ T6009] REISERFS (device loop5): Using r5 hash to sort names [ 129.613279][ T6000] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 129.638844][ T6009] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 5076] getdents64(4, [pid 6015] munmap(0x7fdb6a513000, 4194304 [pid 6014] munmap(0x7fdb6a513000, 4194304 [pid 6009] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6000] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5076] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 6015] <... munmap resumed>) = 0 [pid 6014] <... munmap resumed>) = 0 [pid 6009] <... openat resumed>) = 3 [pid 6000] <... futex resumed>) = 1 [pid 5997] <... futex resumed>) = 0 [pid 5076] getdents64(4, [pid 6015] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6014] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6009] chdir("./file0" [pid 6000] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5997] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5076] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 6015] <... openat resumed>) = 4 [pid 6014] <... openat resumed>) = 4 [pid 6009] <... chdir resumed>) = 0 [pid 6000] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5997] <... futex resumed>) = 0 [pid 5076] close(4 [pid 6015] ioctl(4, LOOP_SET_FD, 3 [pid 6014] ioctl(4, LOOP_SET_FD, 3 [pid 6009] ioctl(4, LOOP_CLR_FD [pid 6000] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5997] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5076] <... close resumed>) = 0 [pid 6005] <... mount resumed>) = 0 [pid 6005] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 6005] chdir("./file0") = 0 [pid 6005] ioctl(4, LOOP_CLR_FD) = 0 [pid 6005] close(4 [pid 6015] <... ioctl resumed>) = 0 [pid 6014] <... ioctl resumed>) = 0 [pid 6009] <... ioctl resumed>) = 0 [pid 6000] <... open resumed>) = 4 [pid 5076] rmdir("./50/file0" [pid 6015] close(3 [pid 6014] close(3 [pid 6009] close(4 [pid 6000] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5076] <... rmdir resumed>) = 0 [pid 6015] <... close resumed>) = 0 [pid 6014] <... close resumed>) = 0 [pid 6009] <... close resumed>) = 0 [pid 6000] <... futex resumed>) = 1 [pid 5997] <... futex resumed>) = 0 [pid 5076] getdents64(3, [pid 6015] mkdir("./file0", 0777 [pid 6014] mkdir("./file0", 0777 [pid 6009] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6000] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5997] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5076] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 6015] <... mkdir resumed>) = 0 [pid 6014] <... mkdir resumed>) = 0 [pid 6009] <... futex resumed>) = 1 [pid 6007] <... futex resumed>) = 0 [pid 6000] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5997] <... futex resumed>) = 0 [pid 5076] close(3 [pid 6015] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 6014] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 6009] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6007] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6000] ioctl(4, FS_IOC_GETVERSION [pid 5997] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5076] <... close resumed>) = 0 [pid 6009] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6007] <... futex resumed>) = 0 [pid 6000] <... ioctl resumed>, 0x20000080) = 0 [pid 5076] rmdir("./50" [pid 6009] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 6007] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6000] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5076] <... rmdir resumed>) = 0 [ 129.713910][ T6005] REISERFS (device loop3): Using r5 hash to sort names [ 129.721268][ T6005] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 129.721689][ T6015] loop4: detected capacity change from 0 to 8192 [ 129.738378][ T6014] loop1: detected capacity change from 0 to 8192 [pid 6009] <... open resumed>) = 4 [pid 6000] <... futex resumed>) = 1 [pid 5997] <... futex resumed>) = 0 [pid 5076] mkdir("./51", 0777 [pid 6009] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6000] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5997] exit_group(0 [pid 5076] <... mkdir resumed>) = 0 [pid 6009] <... futex resumed>) = 1 [pid 5076] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 6009] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5076] <... openat resumed>) = 3 [pid 5076] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5076] close(3) = 0 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 6018 ./strace-static-x86_64: Process 6018 attached [pid 6018] set_robust_list(0x5555571745e0, 24) = 0 [pid 6018] chdir("./51") = 0 [pid 6018] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6018] setpgid(0, 0) = 0 [pid 6018] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6018] write(3, "1000", 4) = 4 [pid 6018] close(3) = 0 [pid 6018] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6018] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6018] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 6018] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6018] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6007] <... futex resumed>) = 0 [pid 6007] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6000] <... futex resumed>) = ? [pid 5997] <... exit_group resumed>) = ? [pid 6009] <... futex resumed>) = 0 [pid 6007] <... futex resumed>) = 1 [pid 6000] +++ exited with 0 +++ [pid 6009] ioctl(4, FS_IOC_GETVERSION, 0x20000080) = 0 [pid 6009] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6018] <... clone resumed>, parent_tid=[6019], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 6019 [pid 6009] <... futex resumed>) = 0 [pid 6018] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6009] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6018] <... futex resumed>) = 0 [pid 5997] +++ exited with 0 +++ [pid 6007] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6018] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6007] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5997, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=22 /* 0.22 s */} --- [pid 6005] <... close resumed>) = 0 [pid 6007] exit_group(0 [pid 6009] <... futex resumed>) = ? [pid 6007] <... exit_group resumed>) = ? [pid 6005] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5074] umount2("./50", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6009] +++ exited with 0 +++ [pid 6005] <... futex resumed>) = 1 [pid 6004] <... futex resumed>) = 0 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6004] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5074] openat(AT_FDCWD, "./50", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6004] <... futex resumed>) = 0 [pid 5074] <... openat resumed>) = 3 [pid 6007] +++ exited with 0 +++ [pid 6004] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5074] fstat(3, [pid 6005] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 ./strace-static-x86_64: Process 6019 attached [pid 5074] getdents64(3, [pid 6019] set_robust_list(0x7fdb729339e0, 24 [pid 6005] <... open resumed>) = 4 [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6007, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=19 /* 0.19 s */} --- [pid 5074] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 6019] <... set_robust_list resumed>) = 0 [pid 6005] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5074] umount2("./50/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6019] memfd_create("syzkaller", 0 [pid 6005] <... futex resumed>) = 1 [pid 6004] <... futex resumed>) = 0 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6019] <... memfd_create resumed>) = 3 [pid 6005] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6004] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] umount2("./50", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] lstat("./50/binderfs", [pid 6019] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6005] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6004] <... futex resumed>) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 6019] <... mmap resumed>) = 0x7fdb6a513000 [pid 6005] ioctl(4, FS_IOC_GETVERSION [pid 6004] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5079] openat(AT_FDCWD, "./50", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5074] unlink("./50/binderfs" [pid 6005] <... ioctl resumed>, 0x20000080) = 0 [pid 5079] <... openat resumed>) = 3 [pid 5074] <... unlink resumed>) = 0 [pid 5074] umount2("./50/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6005] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] fstat(3, [pid 6005] <... futex resumed>) = 1 [pid 6004] <... futex resumed>) = 0 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6005] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [ 129.758831][ T6014] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 129.776350][ T6015] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 129.783749][ T6014] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [pid 6004] exit_group(0 [pid 6005] <... futex resumed>) = ? [pid 6004] <... exit_group resumed>) = ? [pid 5079] getdents64(3, [pid 6005] +++ exited with 0 +++ [pid 6004] +++ exited with 0 +++ [pid 5079] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5079] umount2("./50/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6004, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} --- [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] umount2("./51", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] lstat("./50/binderfs", [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] openat(AT_FDCWD, "./51", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] unlink("./50/binderfs" [pid 5077] <... openat resumed>) = 3 [pid 5079] <... unlink resumed>) = 0 [pid 5077] fstat(3, [pid 5079] umount2("./50/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5077] umount2("./51/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] lstat("./51/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] unlink("./51/binderfs") = 0 [ 129.831958][ T6015] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 129.838642][ T6014] REISERFS (device loop1): using ordered data mode [ 129.870358][ T6014] reiserfs: using flush barriers [pid 5077] umount2("./51/file0", MNT_DETACH|UMOUNT_NOFOLLOW [ 129.886500][ T6015] REISERFS (device loop4): using ordered data mode [ 129.899966][ T6014] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 129.926600][ T6015] reiserfs: using flush barriers [pid 6019] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5074] <... umount2 resumed>) = 0 [pid 5074] umount2("./50/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] lstat("./50/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] umount2("./50/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] openat(AT_FDCWD, "./50/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [ 129.968737][ T6015] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 129.974393][ T6014] REISERFS (device loop1): checking transaction log (loop1) [pid 5074] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5079] <... umount2 resumed>) = 0 [pid 5074] getdents64(4, [pid 5079] umount2("./50/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5074] close(4 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] <... close resumed>) = 0 [pid 5079] lstat("./50/file0", [pid 5074] rmdir("./50/file0" [pid 5079] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] <... rmdir resumed>) = 0 [pid 5079] umount2("./50/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] getdents64(3, [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5079] openat(AT_FDCWD, "./50/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5074] close(3 [pid 5079] fstat(4, [pid 5074] <... close resumed>) = 0 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] rmdir("./50" [pid 5079] getdents64(4, [pid 5074] <... rmdir resumed>) = 0 [pid 5079] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5074] mkdir("./51", 0777 [pid 5079] getdents64(4, [pid 5074] <... mkdir resumed>) = 0 [pid 5079] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5074] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5079] close(4 [pid 5074] <... openat resumed>) = 3 [pid 5079] <... close resumed>) = 0 [pid 5074] ioctl(3, LOOP_CLR_FD [pid 5079] rmdir("./50/file0" [pid 5074] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5079] <... rmdir resumed>) = 0 [pid 5074] close(3 [pid 6019] <... write resumed>) = 4194304 [pid 5079] getdents64(3, [pid 5077] <... umount2 resumed>) = 0 [pid 5074] <... close resumed>) = 0 [pid 6019] munmap(0x7fdb6a513000, 4194304 [pid 5079] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5077] umount2("./51/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6019] <... munmap resumed>) = 0 [pid 5079] close(3 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6019] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5079] <... close resumed>) = 0 [pid 5077] lstat("./51/file0", [pid 5074] <... clone resumed>, child_tidptr=0x5555571745d0) = 6020 [pid 6019] <... openat resumed>) = 4 [pid 5079] rmdir("./50" [pid 5077] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6019] ioctl(4, LOOP_SET_FD, 3 [pid 5079] <... rmdir resumed>) = 0 [ 130.064818][ T6015] REISERFS (device loop4): checking transaction log (loop4) [pid 5077] umount2("./51/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] mkdir("./51", 0777) = 0 [pid 5079] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5079] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5079] close(3) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 6020 attached [pid 5079] <... clone resumed>, child_tidptr=0x5555571745d0) = 6021 [pid 5077] openat(AT_FDCWD, "./51/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6020] set_robust_list(0x5555571745e0, 24 [pid 6019] <... ioctl resumed>) = 0 [pid 5077] <... openat resumed>) = 4 [pid 6020] <... set_robust_list resumed>) = 0 [pid 6019] close(3 [pid 5077] fstat(4, [pid 6020] chdir("./51" [pid 6019] <... close resumed>) = 0 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 ./strace-static-x86_64: Process 6021 attached [pid 6020] <... chdir resumed>) = 0 [pid 6019] mkdir("./file0", 0777 [pid 5077] getdents64(4, [pid 6021] set_robust_list(0x5555571745e0, 24 [pid 6020] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6019] <... mkdir resumed>) = 0 [pid 5077] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 6021] <... set_robust_list resumed>) = 0 [pid 6020] <... prctl resumed>) = 0 [pid 6019] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5077] getdents64(4, [pid 6021] chdir("./51" [pid 6020] setpgid(0, 0 [pid 5077] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 6021] <... chdir resumed>) = 0 [pid 6020] <... setpgid resumed>) = 0 [ 130.109426][ T6019] loop2: detected capacity change from 0 to 8192 [pid 5077] close(4 [pid 6021] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6020] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5077] <... close resumed>) = 0 [pid 5077] rmdir("./51/file0") = 0 [pid 5077] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5077] close(3) = 0 [pid 5077] rmdir("./51") = 0 [pid 5077] mkdir("./52", 0777) = 0 [pid 5077] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5077] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5077] close(3 [pid 6021] <... prctl resumed>) = 0 [pid 6020] <... openat resumed>) = 3 [pid 5077] <... close resumed>) = 0 [pid 6021] setpgid(0, 0 [pid 6020] write(3, "1000", 4 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6021] <... setpgid resumed>) = 0 [pid 6020] <... write resumed>) = 4 [pid 6021] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6020] close(3 [pid 6021] <... openat resumed>) = 3 [pid 6020] <... close resumed>) = 0 [pid 6021] write(3, "1000", 4 [pid 6020] symlink("/dev/binderfs", "./binderfs" [pid 5077] <... clone resumed>, child_tidptr=0x5555571745d0) = 6023 [pid 6021] <... write resumed>) = 4 [pid 6020] <... symlink resumed>) = 0 [pid 6021] close(3 [pid 6020] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 6023 attached [pid 6021] <... close resumed>) = 0 [pid 6020] <... futex resumed>) = 0 [pid 6023] set_robust_list(0x5555571745e0, 24 [ 130.150293][ T6019] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 6021] symlink("/dev/binderfs", "./binderfs" [pid 6020] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6023] <... set_robust_list resumed>) = 0 [pid 6021] <... symlink resumed>) = 0 [pid 6020] <... mmap resumed>) = 0x7fdb72913000 [pid 6023] chdir("./52" [pid 6021] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6020] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 6023] <... chdir resumed>) = 0 [pid 6021] <... futex resumed>) = 0 [pid 6020] <... mprotect resumed>) = 0 [pid 6023] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6021] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6020] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6023] <... prctl resumed>) = 0 [pid 6021] <... mmap resumed>) = 0x7fdb72913000 [pid 6023] setpgid(0, 0 [pid 6021] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 6020] <... clone resumed>, parent_tid=[6024], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 6024 [pid 6023] <... setpgid resumed>) = 0 [pid 6021] <... mprotect resumed>) = 0 [pid 6020] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6023] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6021] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6020] <... futex resumed>) = 0 [pid 6023] <... openat resumed>) = 3 [pid 6020] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6023] write(3, "1000", 4 [pid 6021] <... clone resumed>, parent_tid=[6025], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 6025 [pid 6023] <... write resumed>) = 4 [pid 6021] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6023] close(3 [pid 6021] <... futex resumed>) = 0 ./strace-static-x86_64: Process 6024 attached [pid 6023] <... close resumed>) = 0 [ 130.194605][ T6019] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 130.205558][ T6019] REISERFS (device loop2): using ordered data mode [ 130.208414][ T6014] REISERFS (device loop1): Using r5 hash to sort names [ 130.212726][ T6019] reiserfs: using flush barriers [ 130.225909][ T6014] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [pid 6021] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 6025 attached [pid 6024] set_robust_list(0x7fdb729339e0, 24 [pid 6023] symlink("/dev/binderfs", "./binderfs" [pid 6014] <... mount resumed>) = 0 [pid 6025] set_robust_list(0x7fdb729339e0, 24 [pid 6014] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6025] <... set_robust_list resumed>) = 0 [pid 6014] <... openat resumed>) = 3 [pid 6025] memfd_create("syzkaller", 0 [pid 6014] chdir("./file0" [pid 6025] <... memfd_create resumed>) = 3 [pid 6014] <... chdir resumed>) = 0 [pid 6025] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6014] ioctl(4, LOOP_CLR_FD [pid 6025] <... mmap resumed>) = 0x7fdb6a513000 [pid 6014] <... ioctl resumed>) = 0 [pid 6024] <... set_robust_list resumed>) = 0 [pid 6023] <... symlink resumed>) = 0 [pid 6024] memfd_create("syzkaller", 0 [pid 6023] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6024] <... memfd_create resumed>) = 3 [pid 6023] <... futex resumed>) = 0 [pid 6024] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6023] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6024] <... mmap resumed>) = 0x7fdb6a513000 [pid 6023] <... mmap resumed>) = 0x7fdb72913000 [pid 6023] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 6014] close(4 [pid 6023] <... mprotect resumed>) = 0 [pid 6023] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[6026], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 6026 [pid 6023] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6023] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 6026 attached [pid 6026] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 6025] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 6015] <... mount resumed>) = 0 [pid 6014] <... close resumed>) = 0 [pid 6026] memfd_create("syzkaller", 0 [pid 6014] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6026] <... memfd_create resumed>) = 3 [pid 6014] <... futex resumed>) = 1 [pid 6013] <... futex resumed>) = 0 [ 130.228859][ T6019] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 130.257048][ T6015] REISERFS (device loop4): Using r5 hash to sort names [ 130.273641][ T6015] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 130.286089][ T6019] REISERFS (device loop2): checking transaction log (loop2) [pid 6026] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6014] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6013] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6026] <... mmap resumed>) = 0x7fdb6a513000 [pid 6014] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6013] <... futex resumed>) = 0 [pid 6015] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6014] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 6013] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6015] <... openat resumed>) = 3 [pid 6014] <... open resumed>) = 4 [pid 6015] chdir("./file0" [pid 6014] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6024] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 6015] <... chdir resumed>) = 0 [pid 6014] <... futex resumed>) = 1 [pid 6013] <... futex resumed>) = 0 [pid 6015] ioctl(4, LOOP_CLR_FD [pid 6014] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6013] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6015] <... ioctl resumed>) = 0 [pid 6014] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6013] <... futex resumed>) = 0 [pid 6015] close(4 [pid 6014] ioctl(4, FS_IOC_GETVERSION [pid 6013] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6015] <... close resumed>) = 0 [pid 6014] <... ioctl resumed>, 0x20000080) = 0 [pid 6015] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6014] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6015] <... futex resumed>) = 1 [pid 6014] <... futex resumed>) = 1 [pid 6013] <... futex resumed>) = 0 [pid 6012] <... futex resumed>) = 0 [pid 6015] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6014] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6013] exit_group(0 [pid 6012] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6015] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6014] <... futex resumed>) = ? [pid 6013] <... exit_group resumed>) = ? [pid 6012] <... futex resumed>) = 0 [pid 6015] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 6014] +++ exited with 0 +++ [pid 6013] +++ exited with 0 +++ [pid 6012] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6013, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=23 /* 0.23 s */} --- [pid 6015] <... open resumed>) = 4 [pid 6015] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6012] <... futex resumed>) = 0 [pid 5075] umount2("./50", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6015] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6012] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6025] <... write resumed>) = 4194304 [pid 6015] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6012] <... futex resumed>) = 0 [pid 5075] openat(AT_FDCWD, "./50", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6015] ioctl(4, FS_IOC_GETVERSION [pid 6012] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5075] <... openat resumed>) = 3 [pid 6015] <... ioctl resumed>, 0x20000080) = 0 [pid 5075] fstat(3, [pid 6015] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6015] <... futex resumed>) = 1 [pid 6012] <... futex resumed>) = 0 [pid 5075] getdents64(3, [pid 6015] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6012] exit_group(0 [pid 5075] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 6015] <... futex resumed>) = ? [pid 6012] <... exit_group resumed>) = ? [pid 5075] umount2("./50/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6015] +++ exited with 0 +++ [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] lstat("./50/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 6012] +++ exited with 0 +++ [pid 5075] unlink("./50/binderfs" [pid 5078] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6012, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=15 /* 0.15 s */} --- [pid 5075] <... unlink resumed>) = 0 [pid 5078] restart_syscall(<... resuming interrupted clone ...> [pid 5075] umount2("./50/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5078] <... restart_syscall resumed>) = 0 [pid 5078] umount2("./52", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5078] openat(AT_FDCWD, "./52", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5078] fstat(3, [pid 6025] munmap(0x7fdb6a513000, 4194304 [pid 5078] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5078] umount2("./52/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5078] lstat("./52/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5078] unlink("./52/binderfs") = 0 [pid 5078] umount2("./52/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6025] <... munmap resumed>) = 0 [pid 6025] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 6025] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6026] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 6025] close(3 [pid 6024] <... write resumed>) = 4194304 [pid 6025] <... close resumed>) = 0 [pid 6024] munmap(0x7fdb6a513000, 4194304 [pid 6025] mkdir("./file0", 0777) = 0 [pid 6024] <... munmap resumed>) = 0 [pid 6019] <... mount resumed>) = 0 [pid 6025] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 6024] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6019] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6024] <... openat resumed>) = 4 [pid 6019] <... openat resumed>) = 3 [pid 6019] chdir("./file0" [ 130.444839][ T6019] REISERFS (device loop2): Using r5 hash to sort names [ 130.454397][ T6025] loop5: detected capacity change from 0 to 8192 [ 130.461578][ T6019] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 6024] ioctl(4, LOOP_SET_FD, 3 [pid 6019] <... chdir resumed>) = 0 [pid 6024] <... ioctl resumed>) = 0 [pid 6019] ioctl(4, LOOP_CLR_FD) = 0 [pid 6019] close(4 [pid 6024] close(3 [pid 6019] <... close resumed>) = 0 [pid 6019] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6018] <... futex resumed>) = 0 [pid 6024] <... close resumed>) = 0 [pid 6019] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 6018] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6024] mkdir("./file0", 0777 [pid 6019] <... open resumed>) = 4 [pid 6018] <... futex resumed>) = 0 [pid 6018] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6019] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6018] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6019] <... futex resumed>) = 0 [pid 6018] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6019] ioctl(4, FS_IOC_GETVERSION [pid 6018] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6019] <... ioctl resumed>, 0x20000080) = 0 [ 130.514468][ T6024] loop0: detected capacity change from 0 to 8192 [ 130.534938][ T6025] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 6019] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6018] <... futex resumed>) = 0 [pid 6019] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6018] exit_group(0 [pid 6019] <... futex resumed>) = ? [pid 6018] <... exit_group resumed>) = ? [pid 6024] <... mkdir resumed>) = 0 [pid 6019] +++ exited with 0 +++ [pid 6018] +++ exited with 0 +++ [pid 5075] <... umount2 resumed>) = 0 [pid 6024] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6018, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=16 /* 0.16 s */} --- [pid 5076] umount2("./51", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5076] openat(AT_FDCWD, "./51", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5076] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5076] umount2("./51/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5076] lstat("./51/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] unlink("./51/binderfs") = 0 [pid 5076] umount2("./51/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] umount2("./50/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 130.565068][ T6025] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 130.582301][ T6025] REISERFS (device loop5): using ordered data mode [ 130.590268][ T6025] reiserfs: using flush barriers [pid 5075] lstat("./50/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6026] <... write resumed>) = 4194304 [pid 6026] munmap(0x7fdb6a513000, 4194304) = 0 [pid 6026] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 6026] ioctl(4, LOOP_SET_FD, 3 [pid 5075] umount2("./50/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 6026] <... ioctl resumed>) = 0 [pid 6026] close(3) = 0 [pid 6026] mkdir("./file0", 0777) = 0 [pid 5075] openat(AT_FDCWD, "./50/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6026] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5075] <... openat resumed>) = 4 [pid 5075] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] <... umount2 resumed>) = 0 [pid 5075] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5075] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5075] close(4) = 0 [pid 5075] rmdir("./50/file0") = 0 [pid 5075] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5075] close(3) = 0 [ 130.599704][ T6025] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 130.611279][ T6026] loop3: detected capacity change from 0 to 8192 [ 130.632807][ T6024] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 130.634411][ T6025] REISERFS (device loop5): checking transaction log (loop5) [pid 5075] rmdir("./50") = 0 [pid 5078] umount2("./52/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] mkdir("./51", 0777 [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... mkdir resumed>) = 0 [pid 5078] lstat("./52/file0", [pid 5075] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5078] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] <... openat resumed>) = 3 [pid 5078] umount2("./52/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5078] openat(AT_FDCWD, "./52/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] close(3 [pid 5078] <... openat resumed>) = 4 [pid 5075] <... close resumed>) = 0 [pid 5078] fstat(4, [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5078] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [ 130.668072][ T6026] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 130.675348][ T6024] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 130.684869][ T6026] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 130.709749][ T6024] REISERFS (device loop0): using ordered data mode [pid 5078] getdents64(4, [pid 5075] <... clone resumed>, child_tidptr=0x5555571745d0) = 6030 [pid 5078] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 ./strace-static-x86_64: Process 6030 attached [pid 6030] set_robust_list(0x5555571745e0, 24) = 0 [pid 6030] chdir("./51") = 0 [pid 6030] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6030] setpgid(0, 0) = 0 [pid 6030] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5078] getdents64(4, [pid 6030] write(3, "1000", 4) = 4 [pid 6030] close(3 [pid 5078] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 6030] <... close resumed>) = 0 [pid 6030] symlink("/dev/binderfs", "./binderfs" [pid 5078] close(4 [pid 6030] <... symlink resumed>) = 0 [pid 5078] <... close resumed>) = 0 [pid 6030] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [ 130.723922][ T6026] REISERFS (device loop3): using ordered data mode [ 130.731011][ T6026] reiserfs: using flush barriers [ 130.736696][ T6024] reiserfs: using flush barriers [ 130.749716][ T6024] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5078] rmdir("./52/file0" [pid 6030] <... futex resumed>) = 0 [pid 5078] <... rmdir resumed>) = 0 [pid 6030] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 6030] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6030] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[6031], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 6031 [pid 6030] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6030] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5078] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5078] close(3) = 0 [pid 5078] rmdir("./52") = 0 [pid 5078] mkdir("./53", 0777 [pid 5076] <... umount2 resumed>) = 0 ./strace-static-x86_64: Process 6031 attached [pid 6031] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 6031] memfd_create("syzkaller", 0) = 3 [pid 6031] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [pid 5078] <... mkdir resumed>) = 0 [pid 5076] umount2("./51/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5076] lstat("./51/file0", [pid 5078] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5076] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] umount2("./51/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5078] <... openat resumed>) = 3 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] openat(AT_FDCWD, "./51/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5078] ioctl(3, LOOP_CLR_FD [pid 5076] <... openat resumed>) = 4 [pid 5078] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5076] fstat(4, [pid 5078] close(3 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [ 130.766776][ T6026] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 130.795153][ T6026] REISERFS (device loop3): checking transaction log (loop3) [pid 5076] getdents64(4, [pid 5078] <... close resumed>) = 0 [pid 5076] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5078] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5076] close(4 [pid 5078] <... clone resumed>, child_tidptr=0x5555571745d0) = 6032 [pid 5076] <... close resumed>) = 0 [pid 5076] rmdir("./51/file0") = 0 ./strace-static-x86_64: Process 6032 attached [pid 5076] getdents64(3, [pid 6032] set_robust_list(0x5555571745e0, 24 [pid 5076] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 6032] <... set_robust_list resumed>) = 0 [pid 5076] close(3) = 0 [pid 5076] rmdir("./51") = 0 [ 130.817646][ T6024] REISERFS (device loop0): checking transaction log (loop0) [pid 5076] mkdir("./52", 0777 [pid 6032] chdir("./53" [pid 5076] <... mkdir resumed>) = 0 [pid 5076] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 6032] <... chdir resumed>) = 0 [pid 5076] <... openat resumed>) = 3 [pid 6032] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5076] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5076] close(3 [pid 6032] <... prctl resumed>) = 0 [pid 6032] setpgid(0, 0 [pid 5076] <... close resumed>) = 0 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6032] <... setpgid resumed>) = 0 [pid 6032] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5076] <... clone resumed>, child_tidptr=0x5555571745d0) = 6033 ./strace-static-x86_64: Process 6033 attached [pid 6032] <... openat resumed>) = 3 [pid 6033] set_robust_list(0x5555571745e0, 24 [pid 6032] write(3, "1000", 4 [pid 6033] <... set_robust_list resumed>) = 0 [pid 6032] <... write resumed>) = 4 [pid 6033] chdir("./52" [pid 6032] close(3 [pid 6033] <... chdir resumed>) = 0 [pid 6032] <... close resumed>) = 0 [pid 6033] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6032] symlink("/dev/binderfs", "./binderfs" [pid 6033] setpgid(0, 0 [pid 6032] <... symlink resumed>) = 0 [pid 6033] <... setpgid resumed>) = 0 [pid 6032] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6033] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6032] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6033] <... openat resumed>) = 3 [pid 6032] <... mmap resumed>) = 0x7fdb72913000 [pid 6031] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 6025] <... mount resumed>) = 0 [pid 6025] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 6025] chdir("./file0") = 0 [pid 6025] ioctl(4, LOOP_CLR_FD) = 0 [pid 6025] close(4 [pid 6033] write(3, "1000", 4 [pid 6032] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6033] <... write resumed>) = 4 [pid 6032] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6033] close(3) = 0 [pid 6033] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6032] <... clone resumed>, parent_tid=[6034], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 6034 [pid 6025] <... close resumed>) = 0 [pid 6033] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6032] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6025] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6021] <... futex resumed>) = 0 [pid 6021] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6021] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6025] <... futex resumed>) = 1 [pid 6025] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 6033] <... futex resumed>) = 0 [pid 6032] <... futex resumed>) = 0 [pid 6033] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [ 130.937142][ T6025] REISERFS (device loop5): Using r5 hash to sort names [ 130.937355][ T6026] REISERFS (device loop3): Using r5 hash to sort names [ 130.946738][ T6025] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 130.958134][ T6026] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [pid 6032] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6033] <... mmap resumed>) = 0x7fdb72913000 [pid 6025] <... open resumed>) = 4 [pid 6025] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6021] <... futex resumed>) = 0 [pid 6025] ioctl(4, FS_IOC_GETVERSION [pid 6021] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 6034 attached [pid 6025] <... ioctl resumed>, 0x20000080) = 0 [pid 6021] <... futex resumed>) = 0 [pid 6034] set_robust_list(0x7fdb729339e0, 24 [pid 6025] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6021] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6034] <... set_robust_list resumed>) = 0 [pid 6025] <... futex resumed>) = 0 [pid 6021] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6034] memfd_create("syzkaller", 0 [pid 6033] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 6025] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6021] exit_group(0 [pid 6034] <... memfd_create resumed>) = 3 [pid 6033] <... mprotect resumed>) = 0 [pid 6025] <... futex resumed>) = ? [pid 6021] <... exit_group resumed>) = ? [pid 6034] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6025] +++ exited with 0 +++ [pid 6021] +++ exited with 0 +++ [pid 6034] <... mmap resumed>) = 0x7fdb6a513000 [pid 6033] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6021, si_uid=0, si_status=0, si_utime=0, si_stime=24 /* 0.24 s */} --- [pid 6033] <... clone resumed>, parent_tid=[6035], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 6035 [pid 6033] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6033] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6026] <... mount resumed>) = 0 [pid 6026] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5079] umount2("./51", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 6026] chdir("./file0" [pid 5079] openat(AT_FDCWD, "./51", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6026] <... chdir resumed>) = 0 [pid 6026] ioctl(4, LOOP_CLR_FD [pid 6024] <... mount resumed>) = 0 [pid 5079] <... openat resumed>) = 3 ./strace-static-x86_64: Process 6035 attached [pid 6026] <... ioctl resumed>) = 0 [pid 6024] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5079] fstat(3, [pid 6035] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 6024] <... openat resumed>) = 3 [pid 6026] close(4 [pid 6024] chdir("./file0" [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6035] memfd_create("syzkaller", 0 [pid 5079] getdents64(3, [pid 6026] <... close resumed>) = 0 [pid 6024] <... chdir resumed>) = 0 [pid 6026] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6024] ioctl(4, LOOP_CLR_FD [pid 5079] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 6035] <... memfd_create resumed>) = 3 [pid 6026] <... futex resumed>) = 1 [pid 6024] <... ioctl resumed>) = 0 [pid 6023] <... futex resumed>) = 0 [pid 5079] umount2("./51/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6035] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6023] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6035] <... mmap resumed>) = 0x7fdb6a513000 [pid 6031] <... write resumed>) = 4194304 [ 130.994141][ T6024] REISERFS (device loop0): Using r5 hash to sort names [ 131.002991][ T6024] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 6026] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 6024] close(4 [pid 6023] <... futex resumed>) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6031] munmap(0x7fdb6a513000, 4194304 [pid 6026] <... open resumed>) = 4 [pid 6024] <... close resumed>) = 0 [pid 6023] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5079] lstat("./51/binderfs", [pid 6031] <... munmap resumed>) = 0 [pid 6026] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6024] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6023] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 6031] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6026] <... futex resumed>) = 0 [pid 6024] <... futex resumed>) = 1 [pid 6023] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6020] <... futex resumed>) = 0 [pid 5079] unlink("./51/binderfs" [pid 6031] <... openat resumed>) = 4 [pid 6026] ioctl(4, FS_IOC_GETVERSION [pid 6024] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6023] <... futex resumed>) = 0 [pid 6020] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] <... unlink resumed>) = 0 [pid 6031] ioctl(4, LOOP_SET_FD, 3 [pid 6026] <... ioctl resumed>, 0x20000080) = 0 [pid 6024] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6023] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6020] <... futex resumed>) = 0 [pid 5079] umount2("./51/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6031] <... ioctl resumed>) = 0 [pid 6026] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6024] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 6023] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6020] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6026] <... futex resumed>) = 0 [pid 6024] <... open resumed>) = 4 [pid 6023] exit_group(0 [pid 6024] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6023] <... exit_group resumed>) = ? [pid 6031] close(3 [pid 6026] +++ exited with 0 +++ [pid 6024] <... futex resumed>) = 1 [pid 6020] <... futex resumed>) = 0 [pid 6031] <... close resumed>) = 0 [pid 6024] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6023] +++ exited with 0 +++ [pid 6020] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6031] mkdir("./file0", 0777 [pid 6024] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6020] <... futex resumed>) = 0 [pid 6034] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 6031] <... mkdir resumed>) = 0 [pid 6024] ioctl(4, FS_IOC_GETVERSION [pid 6020] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6023, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=14 /* 0.14 s */} --- [pid 6031] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 6024] <... ioctl resumed>, 0x20000080) = 0 [pid 5077] restart_syscall(<... resuming interrupted clone ...> [pid 6024] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] <... restart_syscall resumed>) = 0 [pid 6024] <... futex resumed>) = 1 [pid 6020] <... futex resumed>) = 0 [pid 6024] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6020] exit_group(0 [pid 6024] <... futex resumed>) = ? [pid 6020] <... exit_group resumed>) = ? [pid 6024] +++ exited with 0 +++ [ 131.073891][ T6031] loop1: detected capacity change from 0 to 8192 [ 131.102270][ T6031] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 6020] +++ exited with 0 +++ [pid 5077] umount2("./52", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] openat(AT_FDCWD, "./52", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5077] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6020, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=14 /* 0.14 s */} --- [pid 5077] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5077] umount2("./52/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] lstat("./52/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5074] umount2("./51", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] unlink("./52/binderfs" [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... unlink resumed>) = 0 [pid 5074] openat(AT_FDCWD, "./51", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] umount2("./52/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] <... openat resumed>) = 3 [pid 5074] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5074] umount2("./51/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] lstat("./51/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5074] unlink("./51/binderfs") = 0 [pid 5074] umount2("./51/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] <... umount2 resumed>) = 0 [pid 5079] umount2("./51/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] lstat("./51/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] umount2("./51/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./51/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5079] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [ 131.116862][ T6031] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 131.141761][ T6031] REISERFS (device loop1): using ordered data mode [ 131.149730][ T6031] reiserfs: using flush barriers [ 131.157697][ T6031] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5079] getdents64(4, [pid 6035] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5079] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5079] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5079] close(4) = 0 [pid 5079] rmdir("./51/file0") = 0 [pid 5079] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5079] close(3) = 0 [pid 5079] rmdir("./51") = 0 [pid 5079] mkdir("./52", 0777) = 0 [pid 5079] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5079] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5079] close(3) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 6037 [ 131.203770][ T6031] REISERFS (device loop1): checking transaction log (loop1) [pid 6035] <... write resumed>) = 4194304 [pid 6035] munmap(0x7fdb6a513000, 4194304) = 0 [pid 6035] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 6035] ioctl(4, LOOP_SET_FD, 3) = 0 ./strace-static-x86_64: Process 6037 attached [pid 6035] close(3 [pid 5074] <... umount2 resumed>) = 0 [pid 6035] <... close resumed>) = 0 [pid 6037] set_robust_list(0x5555571745e0, 24 [pid 6035] mkdir("./file0", 0777 [pid 5074] umount2("./51/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6037] <... set_robust_list resumed>) = 0 [pid 6035] <... mkdir resumed>) = 0 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6037] chdir("./52" [pid 6035] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5074] lstat("./51/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6037] <... chdir resumed>) = 0 [pid 6037] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5074] umount2("./51/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6037] <... prctl resumed>) = 0 [pid 6037] setpgid(0, 0 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6037] <... setpgid resumed>) = 0 [pid 5074] openat(AT_FDCWD, "./51/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6037] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5074] <... openat resumed>) = 4 [ 131.284965][ T6035] loop2: detected capacity change from 0 to 8192 [pid 6037] write(3, "1000", 4 [pid 5074] fstat(4, [pid 6037] <... write resumed>) = 4 [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6037] close(3 [pid 5074] getdents64(4, [pid 6037] <... close resumed>) = 0 [pid 5074] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 6037] symlink("/dev/binderfs", "./binderfs" [pid 6034] <... write resumed>) = 4194304 [pid 6037] <... symlink resumed>) = 0 [pid 5074] getdents64(4, [pid 6037] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5074] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 6037] <... futex resumed>) = 0 [pid 5074] close(4 [pid 6037] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5074] <... close resumed>) = 0 [pid 6037] <... mmap resumed>) = 0x7fdb72913000 [pid 5074] rmdir("./51/file0" [pid 6034] munmap(0x7fdb6a513000, 4194304 [pid 6037] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 6034] <... munmap resumed>) = 0 [pid 5074] <... rmdir resumed>) = 0 [pid 6037] <... mprotect resumed>) = 0 [pid 6034] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 6034] ioctl(4, LOOP_SET_FD, 3 [pid 6037] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [ 131.325767][ T6035] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 131.362601][ T6035] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [pid 5074] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 6037] <... clone resumed>, parent_tid=[6039], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 6039 [pid 5074] close(3./strace-static-x86_64: Process 6039 attached [pid 6037] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6034] <... ioctl resumed>) = 0 [pid 5074] <... close resumed>) = 0 [pid 6039] set_robust_list(0x7fdb729339e0, 24 [pid 6037] <... futex resumed>) = 0 [pid 5077] <... umount2 resumed>) = 0 [pid 5074] rmdir("./51" [pid 6039] <... set_robust_list resumed>) = 0 [pid 6037] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6034] close(3 [pid 5077] umount2("./52/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] <... rmdir resumed>) = 0 [pid 6039] memfd_create("syzkaller", 0 [pid 6034] <... close resumed>) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] mkdir("./52", 0777 [pid 6039] <... memfd_create resumed>) = 3 [pid 6034] mkdir("./file0", 0777 [pid 5077] lstat("./52/file0", [pid 6039] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6034] <... mkdir resumed>) = 0 [pid 5077] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6039] <... mmap resumed>) = 0x7fdb6a513000 [pid 6034] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5077] umount2("./52/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] openat(AT_FDCWD, "./52/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5077] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5077] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5077] close(4 [pid 5074] <... mkdir resumed>) = 0 [pid 5077] <... close resumed>) = 0 [pid 5074] openat(AT_FDCWD, "/dev/loop0", O_RDWR [ 131.365571][ T6034] loop4: detected capacity change from 0 to 8192 [ 131.381730][ T6035] REISERFS (device loop2): using ordered data mode [ 131.388634][ T6035] reiserfs: using flush barriers [ 131.398117][ T6035] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5077] rmdir("./52/file0") = 0 [pid 5074] <... openat resumed>) = 3 [pid 5077] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5077] close(3) = 0 [pid 5077] rmdir("./52") = 0 [pid 5077] mkdir("./53", 0777) = 0 [pid 5077] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5077] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5077] close(3) = 0 [pid 5074] ioctl(3, LOOP_CLR_FD [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5074] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5077] <... clone resumed>, child_tidptr=0x5555571745d0) = 6041 [pid 5074] close(3) = 0 ./strace-static-x86_64: Process 6041 attached [pid 6041] set_robust_list(0x5555571745e0, 24) = 0 [pid 6041] chdir("./53") = 0 [pid 6041] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6041] setpgid(0, 0) = 0 [pid 6041] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6041] write(3, "1000", 4) = 4 [pid 6041] close(3) = 0 [pid 6041] symlink("/dev/binderfs", "./binderfs") = 0 [ 131.424445][ T6034] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 131.453526][ T6034] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 131.463898][ T6034] REISERFS (device loop4): using ordered data mode [ 131.470525][ T6034] reiserfs: using flush barriers [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6041] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5074] <... clone resumed>, child_tidptr=0x5555571745d0) = 6042 ./strace-static-x86_64: Process 6042 attached [pid 6041] <... futex resumed>) = 0 [pid 6042] set_robust_list(0x5555571745e0, 24 [pid 6041] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6042] <... set_robust_list resumed>) = 0 [pid 6041] <... mmap resumed>) = 0x7fdb72913000 [pid 6042] chdir("./52" [pid 6041] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 6039] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 6042] <... chdir resumed>) = 0 [pid 6041] <... mprotect resumed>) = 0 [pid 6042] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6041] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6042] <... prctl resumed>) = 0 [pid 6042] setpgid(0, 0 [pid 6041] <... clone resumed>, parent_tid=[6043], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 6043 [pid 6042] <... setpgid resumed>) = 0 [pid 6041] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6042] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6041] <... futex resumed>) = 0 [pid 6042] <... openat resumed>) = 3 [pid 6041] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6042] write(3, "1000", 4) = 4 [pid 6042] close(3) = 0 [pid 6042] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6042] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 ./strace-static-x86_64: Process 6043 attached [pid 6042] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6043] set_robust_list(0x7fdb729339e0, 24 [pid 6042] <... mmap resumed>) = 0x7fdb72913000 [pid 6043] <... set_robust_list resumed>) = 0 [pid 6042] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 6043] memfd_create("syzkaller", 0 [pid 6042] <... mprotect resumed>) = 0 [pid 6043] <... memfd_create resumed>) = 3 [pid 6042] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6043] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [pid 6042] <... clone resumed>, parent_tid=[6044], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 6044 [ 131.474012][ T6035] REISERFS (device loop2): checking transaction log (loop2) [ 131.484282][ T6034] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 131.507559][ T6031] REISERFS (device loop1): Using r5 hash to sort names [pid 6042] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6042] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 6044 attached [pid 6044] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 6031] <... mount resumed>) = 0 [pid 6044] memfd_create("syzkaller", 0) = 3 [pid 6044] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [pid 6031] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 6031] chdir("./file0") = 0 [pid 6031] ioctl(4, LOOP_CLR_FD) = 0 [pid 6031] close(4) = 0 [pid 6031] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6030] <... futex resumed>) = 0 [pid 6031] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6030] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 131.527236][ T6031] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 131.540736][ T6034] REISERFS (device loop4): checking transaction log (loop4) [pid 6030] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6031] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6031] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6031] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6030] <... futex resumed>) = 0 [pid 6031] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6030] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6031] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6030] <... futex resumed>) = 0 [pid 6031] ioctl(4, FS_IOC_GETVERSION [pid 6030] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6031] <... ioctl resumed>, 0x20000080) = 0 [pid 6031] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6030] <... futex resumed>) = 0 [pid 6031] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6030] exit_group(0 [pid 6031] <... futex resumed>) = ? [pid 6030] <... exit_group resumed>) = ? [pid 6031] +++ exited with 0 +++ [pid 6030] +++ exited with 0 +++ [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6030, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=16 /* 0.16 s */} --- [pid 5075] umount2("./51", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5075] openat(AT_FDCWD, "./51", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 6039] <... write resumed>) = 4194304 [pid 6039] munmap(0x7fdb6a513000, 4194304 [pid 5075] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6039] <... munmap resumed>) = 0 [pid 6039] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5075] getdents64(3, [pid 6039] <... openat resumed>) = 4 [pid 5075] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 6039] ioctl(4, LOOP_SET_FD, 3 [pid 5075] umount2("./51/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6043] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] lstat("./51/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] unlink("./51/binderfs") = 0 [pid 6039] <... ioctl resumed>) = 0 [pid 6039] close(3 [pid 5075] umount2("./51/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6039] <... close resumed>) = 0 [pid 6039] mkdir("./file0", 0777 [pid 6044] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 6039] <... mkdir resumed>) = 0 [pid 6034] <... mount resumed>) = 0 [pid 6039] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 6034] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 6034] chdir("./file0") = 0 [pid 6034] ioctl(4, LOOP_CLR_FD) = 0 [ 131.649840][ T6034] REISERFS (device loop4): Using r5 hash to sort names [ 131.666048][ T6039] loop5: detected capacity change from 0 to 8192 [ 131.684398][ T6034] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [pid 6034] close(4) = 0 [pid 6034] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6032] <... futex resumed>) = 0 [pid 6034] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6032] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6034] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6032] <... futex resumed>) = 0 [pid 6034] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 6032] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6034] <... open resumed>) = 4 [pid 6034] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6032] <... futex resumed>) = 0 [pid 6034] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6032] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6034] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6032] <... futex resumed>) = 0 [pid 6034] ioctl(4, FS_IOC_GETVERSION [pid 6032] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6034] <... ioctl resumed>, 0x20000080) = 0 [pid 6034] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6032] <... futex resumed>) = 0 [pid 6034] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6032] exit_group(0 [pid 6034] <... futex resumed>) = ? [pid 6032] <... exit_group resumed>) = ? [pid 6034] +++ exited with 0 +++ [pid 6032] +++ exited with 0 +++ [pid 5078] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6032, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=18 /* 0.18 s */} --- [pid 5078] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 6044] <... write resumed>) = 4194304 [ 131.741514][ T6039] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 6044] munmap(0x7fdb6a513000, 4194304 [pid 5078] umount2("./53", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6044] <... munmap resumed>) = 0 [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6044] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5078] openat(AT_FDCWD, "./53", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6044] <... openat resumed>) = 4 [pid 5078] <... openat resumed>) = 3 [pid 6044] ioctl(4, LOOP_SET_FD, 3 [pid 5078] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5078] umount2("./53/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5078] lstat("./53/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [ 131.787854][ T6039] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 131.797430][ T6039] REISERFS (device loop5): using ordered data mode [ 131.804392][ T6039] reiserfs: using flush barriers [ 131.810151][ T6044] loop0: detected capacity change from 0 to 8192 [ 131.817070][ T6039] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5078] unlink("./53/binderfs" [pid 6044] <... ioctl resumed>) = 0 [pid 5078] <... unlink resumed>) = 0 [pid 6044] close(3 [pid 5078] umount2("./53/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6044] <... close resumed>) = 0 [pid 6043] <... write resumed>) = 4194304 [pid 6035] <... mount resumed>) = 0 [pid 6044] mkdir("./file0", 0777 [pid 6043] munmap(0x7fdb6a513000, 4194304 [pid 6035] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6044] <... mkdir resumed>) = 0 [pid 6043] <... munmap resumed>) = 0 [pid 6035] <... openat resumed>) = 3 [pid 6044] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 6043] openat(AT_FDCWD, "/dev/loop3", O_RDWR [ 131.833570][ T6035] REISERFS (device loop2): Using r5 hash to sort names [ 131.841079][ T6039] REISERFS (device loop5): checking transaction log (loop5) [ 131.842030][ T6035] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 6035] chdir("./file0" [pid 6043] <... openat resumed>) = 4 [pid 6035] <... chdir resumed>) = 0 [pid 6043] ioctl(4, LOOP_SET_FD, 3 [pid 6035] ioctl(4, LOOP_CLR_FD [pid 5075] <... umount2 resumed>) = 0 [pid 5075] umount2("./51/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5075] lstat("./51/file0", [pid 6035] <... ioctl resumed>) = 0 [pid 5075] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] umount2("./51/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5075] openat(AT_FDCWD, "./51/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5075] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 6043] <... ioctl resumed>) = 0 [pid 6035] close(4 [pid 5075] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5075] close(4) = 0 [pid 5075] rmdir("./51/file0") = 0 [pid 5075] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [ 131.904300][ T6039] REISERFS (device loop5): Using r5 hash to sort names [ 131.911525][ T6043] loop3: detected capacity change from 0 to 8192 [ 131.918591][ T6039] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 131.928499][ T6044] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 131.942116][ T6044] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [pid 6043] close(3 [pid 6039] <... mount resumed>) = 0 [pid 6035] <... close resumed>) = 0 [pid 5075] close(3 [pid 6043] <... close resumed>) = 0 [pid 6039] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6035] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6043] mkdir("./file0", 0777 [pid 6039] <... openat resumed>) = 3 [pid 6035] <... futex resumed>) = 1 [pid 6033] <... futex resumed>) = 0 [pid 6043] <... mkdir resumed>) = 0 [pid 6039] chdir("./file0" [pid 6035] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6033] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6043] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 6039] <... chdir resumed>) = 0 [pid 6035] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6033] <... futex resumed>) = 0 [pid 5078] <... umount2 resumed>) = 0 [pid 5075] <... close resumed>) = 0 [pid 6039] ioctl(4, LOOP_CLR_FD [pid 6035] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 6033] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5078] umount2("./53/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] rmdir("./51" [pid 6039] <... ioctl resumed>) = 0 [pid 6035] <... open resumed>) = 4 [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... rmdir resumed>) = 0 [ 131.952402][ T6044] REISERFS (device loop0): using ordered data mode [ 131.959220][ T6044] reiserfs: using flush barriers [ 131.980091][ T6044] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 6039] close(4 [pid 6035] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] lstat("./53/file0", [pid 5075] mkdir("./52", 0777 [pid 5078] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] <... mkdir resumed>) = 0 [pid 5078] umount2("./53/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... openat resumed>) = 3 [pid 5078] openat(AT_FDCWD, "./53/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] ioctl(3, LOOP_CLR_FD [pid 5078] <... openat resumed>) = 4 [pid 5075] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5078] fstat(4, [pid 5075] close(3 [pid 6039] <... close resumed>) = 0 [pid 6035] <... futex resumed>) = 1 [pid 6033] <... futex resumed>) = 0 [pid 5078] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] <... close resumed>) = 0 [pid 6039] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6035] ioctl(4, FS_IOC_GETVERSION [pid 6033] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6039] <... futex resumed>) = 1 [pid 6035] <... ioctl resumed>, 0x20000080) = 0 [pid 6033] <... futex resumed>) = 0 [pid 6039] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6035] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6033] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6037] <... futex resumed>) = 0 [pid 6035] <... futex resumed>) = 0 [pid 6033] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5078] getdents64(4, [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6035] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6033] exit_group(0 [pid 6035] <... futex resumed>) = ? [pid 6033] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 6048 attached [pid 6037] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6035] +++ exited with 0 +++ [pid 6033] +++ exited with 0 +++ [pid 5078] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 6039] <... futex resumed>) = 0 [pid 6037] <... futex resumed>) = 1 [pid 6039] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5078] getdents64(4, [pid 6039] <... open resumed>) = 4 [pid 6037] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5075] <... clone resumed>, child_tidptr=0x5555571745d0) = 6048 [pid 6039] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 132.008723][ T6043] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 132.024575][ T6044] REISERFS (device loop0): checking transaction log (loop0) [pid 6048] set_robust_list(0x5555571745e0, 24 [pid 6039] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6037] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5078] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6033, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- [pid 6048] <... set_robust_list resumed>) = 0 [pid 6037] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] close(4 [pid 5076] restart_syscall(<... resuming interrupted clone ...> [pid 6048] chdir("./52" [pid 6039] <... futex resumed>) = 0 [pid 6037] <... futex resumed>) = 1 [pid 5078] <... close resumed>) = 0 [pid 5076] <... restart_syscall resumed>) = 0 [pid 6048] <... chdir resumed>) = 0 [pid 6039] ioctl(4, FS_IOC_GETVERSION [pid 6037] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5078] rmdir("./53/file0" [pid 6039] <... ioctl resumed>, 0x20000080) = 0 [pid 6039] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6039] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6048] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6037] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5078] <... rmdir resumed>) = 0 [pid 6048] <... prctl resumed>) = 0 [pid 6037] exit_group(0 [pid 5078] getdents64(3, [pid 5076] umount2("./52", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6048] setpgid(0, 0 [pid 6037] <... exit_group resumed>) = ? [pid 5078] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6048] <... setpgid resumed>) = 0 [pid 5078] close(3 [pid 5076] openat(AT_FDCWD, "./52", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6048] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6039] <... futex resumed>) = ? [pid 5078] <... close resumed>) = 0 [pid 5076] <... openat resumed>) = 3 [pid 6048] <... openat resumed>) = 3 [pid 5078] rmdir("./53" [pid 5076] fstat(3, [pid 6048] write(3, "1000", 4 [pid 5078] <... rmdir resumed>) = 0 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6048] <... write resumed>) = 4 [pid 5078] mkdir("./54", 0777 [pid 5076] getdents64(3, [pid 6048] close(3 [pid 6039] +++ exited with 0 +++ [pid 6037] +++ exited with 0 +++ [pid 5078] <... mkdir resumed>) = 0 [pid 5076] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 6048] <... close resumed>) = 0 [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6037, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=17 /* 0.17 s */} --- [pid 5078] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5076] umount2("./52/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6048] symlink("/dev/binderfs", "./binderfs" [pid 5078] <... openat resumed>) = 3 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6048] <... symlink resumed>) = 0 [pid 5078] ioctl(3, LOOP_CLR_FD [pid 5076] lstat("./52/binderfs", [pid 6048] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] umount2("./52", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5078] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 6048] <... futex resumed>) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5078] close(3 [pid 5076] unlink("./52/binderfs" [pid 6048] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5079] openat(AT_FDCWD, "./52", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5078] <... close resumed>) = 0 [pid 5076] <... unlink resumed>) = 0 [pid 6048] <... mmap resumed>) = 0x7fdb72913000 [pid 5079] <... openat resumed>) = 3 [pid 5078] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] umount2("./52/file0", MNT_DETACH|UMOUNT_NOFOLLOW [ 132.077424][ T6043] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 132.089621][ T6043] REISERFS (device loop3): using ordered data mode [ 132.096639][ T6043] reiserfs: using flush barriers [ 132.110761][ T6043] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 6048] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 5079] fstat(3, ./strace-static-x86_64: Process 6049 attached [pid 6048] <... mprotect resumed>) = 0 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] <... clone resumed>, child_tidptr=0x5555571745d0) = 6049 [pid 6049] set_robust_list(0x5555571745e0, 24 [pid 6048] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5079] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 ./strace-static-x86_64: Process 6050 attached [pid 6049] <... set_robust_list resumed>) = 0 [pid 6048] <... clone resumed>, parent_tid=[6050], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 6050 [pid 6050] set_robust_list(0x7fdb729339e0, 24 [pid 6049] chdir("./54" [pid 6050] <... set_robust_list resumed>) = 0 [pid 6049] <... chdir resumed>) = 0 [pid 6050] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6049] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6049] setpgid(0, 0) = 0 [pid 6049] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5079] umount2("./52/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6049] write(3, "1000", 4) = 4 [pid 6049] close(3) = 0 [pid 6049] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6048] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6049] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6048] <... futex resumed>) = 1 [pid 5079] lstat("./52/binderfs", [pid 6049] <... futex resumed>) = 0 [pid 6048] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6049] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 6049] <... mmap resumed>) = 0x7fdb72913000 [pid 5079] unlink("./52/binderfs" [pid 6050] <... futex resumed>) = 0 [pid 6049] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5079] <... unlink resumed>) = 0 [pid 6050] memfd_create("syzkaller", 0 [pid 6049] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5079] umount2("./52/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6050] <... memfd_create resumed>) = 3 [pid 6044] <... mount resumed>) = 0 [pid 6049] <... clone resumed>, parent_tid=[6051], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 6051 [pid 6049] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6044] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6049] <... futex resumed>) = 0 [pid 6049] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6044] <... openat resumed>) = 3 [pid 6044] chdir("./file0") = 0 [pid 6044] ioctl(4, LOOP_CLR_FD) = 0 [pid 6044] close(4 [pid 6050] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6044] <... close resumed>) = 0 [pid 6044] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6042] <... futex resumed>) = 0 [pid 6044] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 6042] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6044] <... open resumed>) = 4 [pid 6042] <... futex resumed>) = 0 [pid 6050] <... mmap resumed>) = 0x7fdb6a513000 [pid 6044] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6042] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6044] <... futex resumed>) = 0 [pid 6042] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6044] ioctl(4, FS_IOC_GETVERSION [pid 6042] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6044] <... ioctl resumed>, 0x20000080) = 0 [pid 6042] <... futex resumed>) = 0 [pid 6044] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6042] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6044] <... futex resumed>) = 0 [pid 6042] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6044] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6042] exit_group(0 [pid 6044] <... futex resumed>) = ? [pid 6042] <... exit_group resumed>) = ? [ 132.143180][ T6043] REISERFS (device loop3): checking transaction log (loop3) [ 132.150371][ T6044] REISERFS (device loop0): Using r5 hash to sort names [ 132.164309][ T6044] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 6044] +++ exited with 0 +++ [pid 6042] +++ exited with 0 +++ ./strace-static-x86_64: Process 6051 attached [pid 6051] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 6051] memfd_create("syzkaller", 0) = 3 [pid 6051] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6042, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=21 /* 0.21 s */} --- [pid 5074] umount2("./52", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] openat(AT_FDCWD, "./52", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5074] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5074] umount2("./52/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] lstat("./52/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5074] unlink("./52/binderfs") = 0 [pid 5074] umount2("./52/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6050] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 6051] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5079] <... umount2 resumed>) = 0 [pid 5079] umount2("./52/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] lstat("./52/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] umount2("./52/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5076] <... umount2 resumed>) = 0 [pid 5076] umount2("./52/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5076] lstat("./52/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] umount2("./52/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5076] openat(AT_FDCWD, "./52/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5076] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5076] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5076] close(4) = 0 [pid 5076] rmdir("./52/file0" [pid 5079] openat(AT_FDCWD, "./52/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5076] <... rmdir resumed>) = 0 [pid 5076] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5076] close(3) = 0 [pid 5076] rmdir("./52") = 0 [pid 5076] mkdir("./53", 0777) = 0 [pid 5076] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5076] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5076] close(3 [pid 5079] fstat(4, [pid 5076] <... close resumed>) = 0 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5079] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5076] <... clone resumed>, child_tidptr=0x5555571745d0) = 6052 [pid 5079] close(4) = 0 [pid 5079] rmdir("./52/file0") = 0 [pid 5079] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5079] close(3) = 0 [pid 5079] rmdir("./52"./strace-static-x86_64: Process 6052 attached ) = 0 [pid 5079] mkdir("./53", 0777 [pid 6052] set_robust_list(0x5555571745e0, 24) = 0 [pid 5079] <... mkdir resumed>) = 0 [pid 6052] chdir("./53" [pid 5079] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 6052] <... chdir resumed>) = 0 [pid 5079] <... openat resumed>) = 3 [pid 6052] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5079] ioctl(3, LOOP_CLR_FD [pid 6052] <... prctl resumed>) = 0 [pid 5079] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 6052] setpgid(0, 0 [pid 5079] close(3 [pid 6052] <... setpgid resumed>) = 0 [pid 6050] <... write resumed>) = 4194304 [pid 6043] <... mount resumed>) = 0 [pid 5079] <... close resumed>) = 0 [pid 5074] <... umount2 resumed>) = 0 [pid 6052] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6043] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5074] umount2("./52/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6050] munmap(0x7fdb6a513000, 4194304 [pid 6052] write(3, "1000", 4) = 4 [pid 6052] close(3) = 0 [pid 6052] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6043] <... openat resumed>) = 3 [pid 6052] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6043] chdir("./file0" [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6052] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 6043] <... chdir resumed>) = 0 [pid 5079] <... clone resumed>, child_tidptr=0x5555571745d0) = 6053 [pid 5074] lstat("./52/file0", [pid 6052] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 6043] ioctl(4, LOOP_CLR_FD [pid 6052] <... mprotect resumed>) = 0 [pid 5074] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 ./strace-static-x86_64: Process 6053 attached [ 132.415687][ T6043] REISERFS (device loop3): Using r5 hash to sort names [ 132.424840][ T6043] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [pid 6052] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6043] <... ioctl resumed>) = 0 [pid 5074] umount2("./52/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6053] set_robust_list(0x5555571745e0, 24 [pid 6043] close(4 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6053] <... set_robust_list resumed>) = 0 [pid 6052] <... clone resumed>, parent_tid=[6054], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 6054 [pid 6043] <... close resumed>) = 0 [pid 5074] openat(AT_FDCWD, "./52/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6053] chdir("./53" [pid 6052] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6043] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6053] <... chdir resumed>) = 0 [pid 6052] <... futex resumed>) = 0 [pid 6043] <... futex resumed>) = 1 [pid 6041] <... futex resumed>) = 0 [pid 5074] <... openat resumed>) = 4 [pid 6053] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6052] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6050] <... munmap resumed>) = 0 [pid 6043] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6041] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5074] fstat(4, [pid 6053] <... prctl resumed>) = 0 [pid 6050] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6043] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6041] <... futex resumed>) = 0 [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 ./strace-static-x86_64: Process 6054 attached [pid 6053] setpgid(0, 0 [pid 6050] <... openat resumed>) = 4 [pid 6043] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 6041] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5074] getdents64(4, [pid 6054] set_robust_list(0x7fdb729339e0, 24 [pid 6053] <... setpgid resumed>) = 0 [pid 6054] <... set_robust_list resumed>) = 0 [pid 6053] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6043] <... open resumed>) = 4 [pid 5074] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 6050] ioctl(4, LOOP_SET_FD, 3 [pid 6054] memfd_create("syzkaller", 0 [pid 6053] <... openat resumed>) = 3 [pid 6043] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5074] getdents64(4, [pid 6054] <... memfd_create resumed>) = 3 [pid 6053] write(3, "1000", 4 [pid 6054] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6053] <... write resumed>) = 4 [pid 6043] <... futex resumed>) = 1 [pid 6041] <... futex resumed>) = 0 [pid 5074] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 6054] <... mmap resumed>) = 0x7fdb6a513000 [pid 6053] close(3 [pid 6043] ioctl(4, FS_IOC_GETVERSION [pid 6041] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6053] <... close resumed>) = 0 [pid 6051] <... write resumed>) = 4194304 [pid 6050] <... ioctl resumed>) = 0 [pid 6043] <... ioctl resumed>, 0x20000080) = 0 [pid 6041] <... futex resumed>) = 0 [pid 5074] close(4 [pid 6053] symlink("/dev/binderfs", "./binderfs" [pid 6051] munmap(0x7fdb6a513000, 4194304 [pid 6050] close(3 [pid 6043] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6041] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5074] <... close resumed>) = 0 [pid 6053] <... symlink resumed>) = 0 [pid 6051] <... munmap resumed>) = 0 [pid 6050] <... close resumed>) = 0 [pid 6043] <... futex resumed>) = 0 [pid 6041] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5074] rmdir("./52/file0" [pid 6053] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6051] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6050] mkdir("./file0", 0777 [pid 6043] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6041] exit_group(0 [pid 5074] <... rmdir resumed>) = 0 [pid 6053] <... futex resumed>) = 0 [pid 6051] <... openat resumed>) = 4 [pid 6050] <... mkdir resumed>) = 0 [pid 6043] <... futex resumed>) = ? [pid 6041] <... exit_group resumed>) = ? [ 132.488738][ T6050] loop1: detected capacity change from 0 to 8192 [pid 5074] getdents64(3, [pid 6053] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6051] ioctl(4, LOOP_SET_FD, 3 [pid 6050] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 6043] +++ exited with 0 +++ [pid 5074] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 6054] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 6053] <... mmap resumed>) = 0x7fdb72913000 [pid 6041] +++ exited with 0 +++ [pid 6053] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 6051] <... ioctl resumed>) = 0 [pid 5074] close(3 [pid 6051] close(3 [pid 5074] <... close resumed>) = 0 [pid 6051] <... close resumed>) = 0 [pid 5074] rmdir("./52" [pid 6051] mkdir("./file0", 0777 [pid 5074] <... rmdir resumed>) = 0 [pid 6051] <... mkdir resumed>) = 0 [pid 5074] mkdir("./53", 0777 [pid 6051] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5074] <... mkdir resumed>) = 0 [pid 5074] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5074] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 6053] <... mprotect resumed>) = 0 [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6041, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=17 /* 0.17 s */} --- [pid 5074] close(3 [pid 6053] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5074] <... close resumed>) = 0 [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 6057 [pid 6053] <... clone resumed>, parent_tid=[6058], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 6058 [pid 5077] umount2("./53", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6053] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6053] <... futex resumed>) = 0 [pid 5077] openat(AT_FDCWD, "./53", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6053] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5077] <... openat resumed>) = 3 [ 132.532575][ T6051] loop4: detected capacity change from 0 to 8192 [ 132.541482][ T6050] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 132.562171][ T6050] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [pid 5077] fstat(3, ./strace-static-x86_64: Process 6057 attached {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6057] set_robust_list(0x5555571745e0, 24 [pid 5077] getdents64(3, [pid 6057] <... set_robust_list resumed>) = 0 [pid 5077] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 6057] chdir("./53" [pid 5077] umount2("./53/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6057] <... chdir resumed>) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6057] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5077] lstat("./53/binderfs", [pid 6057] <... prctl resumed>) = 0 [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 6057] setpgid(0, 0 [pid 5077] unlink("./53/binderfs" [pid 6057] <... setpgid resumed>) = 0 [pid 6057] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5077] <... unlink resumed>) = 0 [pid 6057] <... openat resumed>) = 3 [pid 5077] umount2("./53/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6057] write(3, "1000", 4) = 4 [pid 6057] close(3./strace-static-x86_64: Process 6058 attached ) = 0 [pid 6057] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6057] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6058] set_robust_list(0x7fdb729339e0, 24 [pid 6057] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6058] <... set_robust_list resumed>) = 0 [pid 6054] <... write resumed>) = 4194304 [pid 6058] memfd_create("syzkaller", 0) = 3 [pid 6058] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [pid 6057] <... mmap resumed>) = 0x7fdb72913000 [pid 6054] munmap(0x7fdb6a513000, 4194304 [pid 6057] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 6054] <... munmap resumed>) = 0 [pid 6057] <... mprotect resumed>) = 0 [ 132.575291][ T6051] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 132.611187][ T6050] REISERFS (device loop1): using ordered data mode [ 132.619879][ T6050] reiserfs: using flush barriers [pid 6054] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 6057] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6054] <... openat resumed>) = 4 ./strace-static-x86_64: Process 6059 attached [pid 6058] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 6054] ioctl(4, LOOP_SET_FD, 3 [pid 6059] set_robust_list(0x7fdb729339e0, 24 [pid 6054] <... ioctl resumed>) = 0 [pid 6059] <... set_robust_list resumed>) = 0 [pid 6054] close(3 [pid 6059] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6057] <... clone resumed>, parent_tid=[6059], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 6059 [pid 6054] <... close resumed>) = 0 [pid 6057] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6054] mkdir("./file0", 0777 [pid 6059] <... futex resumed>) = 0 [pid 6057] <... futex resumed>) = 1 [pid 6054] <... mkdir resumed>) = 0 [pid 6059] memfd_create("syzkaller", 0 [pid 6057] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6054] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 6059] <... memfd_create resumed>) = 3 [pid 6059] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [ 132.626595][ T6051] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 132.627339][ T6050] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 132.656003][ T6050] REISERFS (device loop1): checking transaction log (loop1) [ 132.659405][ T6054] loop2: detected capacity change from 0 to 8192 [pid 6058] <... write resumed>) = 4194304 [pid 6058] munmap(0x7fdb6a513000, 4194304) = 0 [pid 6058] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [ 132.698160][ T6054] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 132.728921][ T6051] REISERFS (device loop4): using ordered data mode [pid 6058] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6058] close(3) = 0 [pid 6058] mkdir("./file0", 0777) = 0 [ 132.747026][ T6058] loop5: detected capacity change from 0 to 8192 [ 132.748840][ T6054] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 132.753685][ T6051] reiserfs: using flush barriers [ 132.769623][ T6051] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 132.786708][ T6051] REISERFS (device loop4): checking transaction log (loop4) [pid 6058] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 6059] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5077] <... umount2 resumed>) = 0 [pid 5077] umount2("./53/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 132.813531][ T6058] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 132.813685][ T6054] REISERFS (device loop2): using ordered data mode [ 132.834538][ T6054] reiserfs: using flush barriers [ 132.854475][ T6058] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [pid 5077] lstat("./53/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] umount2("./53/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] openat(AT_FDCWD, "./53/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5077] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6050] <... mount resumed>) = 0 [pid 6050] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5077] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5077] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5077] close(4) = 0 [ 132.880314][ T6054] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 132.898737][ T6050] REISERFS (device loop1): Using r5 hash to sort names [ 132.901525][ T6058] REISERFS (device loop5): using ordered data mode [ 132.906850][ T6050] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [pid 5077] rmdir("./53/file0" [pid 6050] <... openat resumed>) = 3 [pid 5077] <... rmdir resumed>) = 0 [pid 5077] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5077] close(3) = 0 [pid 6050] chdir("./file0" [pid 5077] rmdir("./53" [pid 6050] <... chdir resumed>) = 0 [pid 5077] <... rmdir resumed>) = 0 [ 132.923666][ T6054] REISERFS (device loop2): checking transaction log (loop2) [pid 6050] ioctl(4, LOOP_CLR_FD [pid 5077] mkdir("./54", 0777 [pid 6050] <... ioctl resumed>) = 0 [pid 5077] <... mkdir resumed>) = 0 [pid 6050] close(4 [pid 5077] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 6059] <... write resumed>) = 4194304 [pid 6050] <... close resumed>) = 0 [pid 6059] munmap(0x7fdb6a513000, 4194304 [pid 6050] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6059] <... munmap resumed>) = 0 [pid 6050] <... futex resumed>) = 1 [ 132.963038][ T6058] reiserfs: using flush barriers [pid 6048] <... futex resumed>) = 0 [pid 5077] <... openat resumed>) = 3 [pid 6059] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6050] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6059] <... openat resumed>) = 4 [pid 6059] ioctl(4, LOOP_SET_FD, 3 [pid 6048] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] ioctl(3, LOOP_CLR_FD [pid 6050] <... futex resumed>) = 0 [pid 6048] <... futex resumed>) = 1 [pid 5077] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 6050] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 6048] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5077] close(3 [pid 6050] <... open resumed>) = 4 [pid 6050] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] <... close resumed>) = 0 [pid 6050] <... futex resumed>) = 1 [pid 6048] <... futex resumed>) = 0 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [ 132.987599][ T6058] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 132.991083][ T6059] loop0: detected capacity change from 0 to 8192 [ 133.017801][ T6054] REISERFS (device loop2): Using r5 hash to sort names [ 133.018614][ T6058] REISERFS (device loop5): checking transaction log (loop5) [pid 6050] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6048] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6050] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6050] ioctl(4, FS_IOC_GETVERSION, 0x20000080) = 0 [pid 6050] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6048] <... futex resumed>) = 0 [pid 6050] <... futex resumed>) = 0 [pid 6048] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6050] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6048] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5077] <... clone resumed>, child_tidptr=0x5555571745d0) = 6062 [pid 6048] exit_group(0 [pid 6050] <... futex resumed>) = ? [pid 6048] <... exit_group resumed>) = ? [pid 6050] +++ exited with 0 +++ [pid 6048] +++ exited with 0 +++ [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6048, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} --- [pid 5075] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5075] umount2("./52", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5075] openat(AT_FDCWD, "./52", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6059] <... ioctl resumed>) = 0 [ 133.028303][ T6054] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 5075] <... openat resumed>) = 3 ./strace-static-x86_64: Process 6062 attached [pid 6059] close(3 [pid 5075] fstat(3, [pid 6059] <... close resumed>) = 0 [pid 6062] set_robust_list(0x5555571745e0, 24 [pid 6059] mkdir("./file0", 0777 [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6062] <... set_robust_list resumed>) = 0 [pid 6059] <... mkdir resumed>) = 0 [pid 5075] getdents64(3, [pid 6062] chdir("./54" [pid 6059] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 6062] <... chdir resumed>) = 0 [pid 5075] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 6062] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5075] umount2("./52/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6062] <... prctl resumed>) = 0 [pid 6062] setpgid(0, 0 [pid 6054] <... mount resumed>) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 133.067981][ T6051] REISERFS (device loop4): Using r5 hash to sort names [ 133.087496][ T6059] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 133.091951][ T6051] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [pid 6062] <... setpgid resumed>) = 0 [pid 6054] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6051] <... mount resumed>) = 0 [pid 5075] lstat("./52/binderfs", [pid 6062] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6054] <... openat resumed>) = 3 [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 6062] <... openat resumed>) = 3 [pid 6054] chdir("./file0" [pid 5075] unlink("./52/binderfs" [pid 6062] write(3, "1000", 4 [pid 6054] <... chdir resumed>) = 0 [pid 5075] <... unlink resumed>) = 0 [pid 6062] <... write resumed>) = 4 [pid 6054] ioctl(4, LOOP_CLR_FD [pid 5075] umount2("./52/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6062] close(3 [pid 6054] <... ioctl resumed>) = 0 [pid 6062] <... close resumed>) = 0 [pid 6054] close(4) = 0 [pid 6062] symlink("/dev/binderfs", "./binderfs" [pid 6054] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6051] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6062] <... symlink resumed>) = 0 [pid 6054] <... futex resumed>) = 1 [pid 6052] <... futex resumed>) = 0 [ 133.103839][ T6059] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 133.131738][ T6059] REISERFS (device loop0): using ordered data mode [ 133.155302][ T1210] ieee802154 phy0 wpan0: encryption failed: -22 [ 133.155882][ T6059] reiserfs: using flush barriers [pid 6062] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6054] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 6052] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6051] <... openat resumed>) = 3 [pid 6062] <... futex resumed>) = 0 [pid 6054] <... open resumed>) = 4 [pid 6051] chdir("./file0" [pid 6062] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6054] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6051] <... chdir resumed>) = 0 [pid 6062] <... mmap resumed>) = 0x7fdb72913000 [pid 6054] <... futex resumed>) = 0 [pid 6051] ioctl(4, LOOP_CLR_FD [pid 6062] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 6054] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6051] <... ioctl resumed>) = 0 [pid 6062] <... mprotect resumed>) = 0 [pid 6054] <... futex resumed>) = 0 [pid 6052] <... futex resumed>) = 1 [pid 6051] close(4 [pid 6062] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6054] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6052] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6051] <... close resumed>) = 0 [pid 6052] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6052] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6052] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6054] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6054] ioctl(4, FS_IOC_GETVERSION [pid 6051] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 6064 attached [pid 6064] set_robust_list(0x7fdb729339e0, 24 [pid 6054] <... ioctl resumed>, 0x20000080) = 0 [pid 6051] <... futex resumed>) = 1 [pid 6049] <... futex resumed>) = 0 [pid 6054] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6062] <... clone resumed>, parent_tid=[6064], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 6064 [pid 6051] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [ 133.161922][ T1210] ieee802154 phy1 wpan1: encryption failed: -22 [pid 6049] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6049] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6064] <... set_robust_list resumed>) = 0 [pid 6064] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6062] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6054] <... futex resumed>) = 1 [pid 6052] <... futex resumed>) = 0 [pid 6051] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6064] <... futex resumed>) = 0 [pid 6062] <... futex resumed>) = 1 [pid 6054] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6052] exit_group(0 [pid 6051] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 6062] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6054] <... futex resumed>) = ? [pid 6052] <... exit_group resumed>) = ? [pid 6051] <... open resumed>) = 4 [pid 6064] memfd_create("syzkaller", 0 [pid 6054] +++ exited with 0 +++ [pid 6052] +++ exited with 0 +++ [pid 6051] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6051] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6064] <... memfd_create resumed>) = 3 [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6052, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- [pid 6064] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5076] restart_syscall(<... resuming interrupted clone ...> [pid 6064] <... mmap resumed>) = 0x7fdb6a513000 [pid 6049] <... futex resumed>) = 0 [pid 6049] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6049] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6051] <... futex resumed>) = 0 [pid 5076] <... restart_syscall resumed>) = 0 [pid 6051] ioctl(4, FS_IOC_GETVERSION, 0x20000080) = 0 [pid 6051] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6049] <... futex resumed>) = 0 [pid 5076] umount2("./53", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6051] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6049] exit_group(0 [pid 5076] openat(AT_FDCWD, "./53", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6051] <... futex resumed>) = ? [pid 6049] <... exit_group resumed>) = ? [pid 5076] <... openat resumed>) = 3 [pid 6051] +++ exited with 0 +++ [pid 6049] +++ exited with 0 +++ [pid 5076] fstat(3, [pid 5078] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6049, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=24 /* 0.24 s */} --- [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] restart_syscall(<... resuming interrupted clone ...> [pid 5076] getdents64(3, [pid 5078] <... restart_syscall resumed>) = 0 [pid 5076] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5076] umount2("./53/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5078] umount2("./54", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] lstat("./53/binderfs", [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5078] openat(AT_FDCWD, "./54", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] unlink("./53/binderfs" [pid 5078] <... openat resumed>) = 3 [pid 5078] fstat(3, [pid 5076] <... unlink resumed>) = 0 [pid 5078] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] umount2("./53/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5078] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5078] umount2("./54/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5078] lstat("./54/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5078] unlink("./54/binderfs") = 0 [ 133.192492][ T6058] REISERFS (device loop5): Using r5 hash to sort names [ 133.194782][ T6059] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 133.220383][ T6059] REISERFS (device loop0): checking transaction log (loop0) [ 133.229297][ T6058] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 5078] umount2("./54/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6058] <... mount resumed>) = 0 [pid 6058] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 6058] chdir("./file0") = 0 [pid 6058] ioctl(4, LOOP_CLR_FD) = 0 [pid 6058] close(4) = 0 [pid 6058] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6053] <... futex resumed>) = 0 [pid 6058] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6053] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6058] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6053] <... futex resumed>) = 0 [pid 6058] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 6053] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6058] <... open resumed>) = 4 [pid 6058] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6053] <... futex resumed>) = 0 [pid 6053] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6058] ioctl(4, FS_IOC_GETVERSION [pid 6053] <... futex resumed>) = 0 [pid 6058] <... ioctl resumed>, 0x20000080) = 0 [pid 6053] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6058] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6053] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6058] <... futex resumed>) = 0 [pid 6058] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6053] exit_group(0 [pid 6058] <... futex resumed>) = ? [pid 6053] <... exit_group resumed>) = ? [pid 6058] +++ exited with 0 +++ [pid 6053] +++ exited with 0 +++ [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6053, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=19 /* 0.19 s */} --- [pid 5079] umount2("./53", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./53", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5079] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5079] umount2("./53/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] lstat("./53/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] unlink("./53/binderfs") = 0 [pid 5079] umount2("./53/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6064] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5075] <... umount2 resumed>) = 0 [pid 5075] umount2("./52/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5075] lstat("./52/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] umount2("./52/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5075] openat(AT_FDCWD, "./52/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5078] <... umount2 resumed>) = 0 [pid 5075] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5075] getdents64(4, [pid 6064] <... write resumed>) = 4194304 [pid 6064] munmap(0x7fdb6a513000, 4194304 [pid 5075] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5075] close(4) = 0 [pid 5075] rmdir("./52/file0") = 0 [pid 5075] getdents64(3, [pid 6064] <... munmap resumed>) = 0 [pid 5075] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5075] close(3 [pid 6064] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5075] <... close resumed>) = 0 [pid 5075] rmdir("./52") = 0 [pid 6064] <... openat resumed>) = 4 [pid 5075] mkdir("./53", 0777 [pid 6064] ioctl(4, LOOP_SET_FD, 3 [pid 5075] <... mkdir resumed>) = 0 [pid 5075] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5075] ioctl(3, LOOP_CLR_FD [pid 5076] <... umount2 resumed>) = 0 [pid 5076] umount2("./53/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5076] lstat("./53/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] umount2("./53/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5076] openat(AT_FDCWD, "./53/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5076] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5076] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5076] close(4) = 0 [pid 5078] umount2("./54/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] rmdir("./53/file0" [pid 5075] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5075] close(3) = 0 [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5078] lstat("./54/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] umount2("./54/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... rmdir resumed>) = 0 [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5078] openat(AT_FDCWD, "./54/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5078] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] getdents64(4, [pid 5076] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5078] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5076] close(3) = 0 [pid 5078] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5078] close(4 [pid 5076] rmdir("./53" [pid 5078] <... close resumed>) = 0 [pid 5076] <... rmdir resumed>) = 0 [pid 5078] rmdir("./54/file0") = 0 [pid 5076] mkdir("./54", 0777) = 0 [pid 5078] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5078] close(3) = 0 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5078] rmdir("./54") = 0 [pid 5076] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5075] <... clone resumed>, child_tidptr=0x5555571745d0) = 6065 [pid 5076] <... openat resumed>) = 3 [pid 5076] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5076] close(3) = 0 [pid 5078] mkdir("./55", 0777) = 0 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5078] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5076] <... clone resumed>, child_tidptr=0x5555571745d0) = 6066 ./strace-static-x86_64: Process 6065 attached [pid 5078] ioctl(3, LOOP_CLR_FD [pid 6065] set_robust_list(0x5555571745e0, 24 [pid 5078] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 6065] <... set_robust_list resumed>) = 0 [pid 5078] close(3./strace-static-x86_64: Process 6066 attached [pid 6065] chdir("./53" [pid 5078] <... close resumed>) = 0 [pid 6066] set_robust_list(0x5555571745e0, 24 [pid 6065] <... chdir resumed>) = 0 [pid 5078] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6066] <... set_robust_list resumed>) = 0 [pid 6065] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6066] chdir("./54" [pid 6065] setpgid(0, 0 [pid 5078] <... clone resumed>, child_tidptr=0x5555571745d0) = 6067 [ 133.484165][ T6064] loop3: detected capacity change from 0 to 8192 [pid 6064] <... ioctl resumed>) = 0 [pid 6066] <... chdir resumed>) = 0 [pid 6065] <... setpgid resumed>) = 0 [pid 6066] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6065] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6066] <... prctl resumed>) = 0 [pid 6065] <... openat resumed>) = 3 ./strace-static-x86_64: Process 6067 attached [pid 6066] setpgid(0, 0 [pid 6065] write(3, "1000", 4 [pid 6067] set_robust_list(0x5555571745e0, 24 [pid 6066] <... setpgid resumed>) = 0 [pid 6065] <... write resumed>) = 4 [pid 6067] <... set_robust_list resumed>) = 0 [pid 6066] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6065] close(3 [pid 6067] chdir("./55" [pid 6066] <... openat resumed>) = 3 [pid 6065] <... close resumed>) = 0 [pid 6067] <... chdir resumed>) = 0 [pid 6066] write(3, "1000", 4 [pid 6065] symlink("/dev/binderfs", "./binderfs" [pid 6064] close(3 [pid 6067] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6066] <... write resumed>) = 4 [pid 6065] <... symlink resumed>) = 0 [pid 6064] <... close resumed>) = 0 [pid 6067] <... prctl resumed>) = 0 [pid 6066] close(3 [pid 6065] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6067] setpgid(0, 0 [pid 6066] <... close resumed>) = 0 [pid 6065] <... futex resumed>) = 0 [pid 6067] <... setpgid resumed>) = 0 [pid 6066] symlink("/dev/binderfs", "./binderfs" [pid 6065] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6067] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6066] <... symlink resumed>) = 0 [pid 6065] <... mmap resumed>) = 0x7fdb72913000 [pid 6067] <... openat resumed>) = 3 [pid 6066] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6065] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 6067] write(3, "1000", 4 [pid 6066] <... futex resumed>) = 0 [pid 6065] <... mprotect resumed>) = 0 [pid 6067] <... write resumed>) = 4 [pid 6066] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6065] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6067] close(3 [pid 6066] <... mmap resumed>) = 0x7fdb72913000 [pid 6067] <... close resumed>) = 0 [pid 6066] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 6065] <... clone resumed>, parent_tid=[6068], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 6068 [pid 6064] mkdir("./file0", 0777 [pid 6067] symlink("/dev/binderfs", "./binderfs" [pid 6066] <... mprotect resumed>) = 0 [pid 6065] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6067] <... symlink resumed>) = 0 [pid 6066] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6065] <... futex resumed>) = 0 [pid 6064] <... mkdir resumed>) = 0 [pid 6067] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6065] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6064] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 6067] <... futex resumed>) = 0 [pid 6066] <... clone resumed>, parent_tid=[6069], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 6069 ./strace-static-x86_64: Process 6068 attached [pid 6067] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6066] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6068] set_robust_list(0x7fdb729339e0, 24 [pid 6067] <... mmap resumed>) = 0x7fdb72913000 [pid 6066] <... futex resumed>) = 0 ./strace-static-x86_64: Process 6069 attached [pid 6068] <... set_robust_list resumed>) = 0 [pid 6067] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 6066] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5079] <... umount2 resumed>) = 0 [pid 6069] set_robust_list(0x7fdb729339e0, 24 [pid 6068] memfd_create("syzkaller", 0 [pid 6067] <... mprotect resumed>) = 0 [pid 6068] <... memfd_create resumed>) = 3 [pid 6067] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6069] <... set_robust_list resumed>) = 0 [pid 6068] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [pid 6067] <... clone resumed>, parent_tid=[6071], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 6071 [pid 6069] memfd_create("syzkaller", 0 [ 133.529560][ T6059] REISERFS (device loop0): Using r5 hash to sort names [ 133.546971][ T6059] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 6067] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6069] <... memfd_create resumed>) = 3 [pid 6067] <... futex resumed>) = 0 [pid 6067] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6069] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [pid 6059] <... mount resumed>) = 0 ./strace-static-x86_64: Process 6071 attached [pid 6071] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 6059] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6071] memfd_create("syzkaller", 0 [pid 6059] <... openat resumed>) = 3 [pid 6071] <... memfd_create resumed>) = 3 [pid 6059] chdir("./file0" [pid 5079] umount2("./53/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6071] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6059] <... chdir resumed>) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6071] <... mmap resumed>) = 0x7fdb6a513000 [pid 6059] ioctl(4, LOOP_CLR_FD [pid 5079] lstat("./53/file0", [pid 6059] <... ioctl resumed>) = 0 [pid 5079] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [ 133.582423][ T6064] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 133.597126][ T6064] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 133.607083][ T6064] REISERFS (device loop3): using ordered data mode [ 133.614061][ T6064] reiserfs: using flush barriers [pid 6059] close(4 [pid 5079] umount2("./53/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6059] <... close resumed>) = 0 [pid 6059] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6057] <... futex resumed>) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6059] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6057] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] openat(AT_FDCWD, "./53/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6068] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 6059] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6057] <... futex resumed>) = 0 [pid 5079] <... openat resumed>) = 4 [pid 6059] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 6057] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5079] fstat(4, [pid 6059] <... open resumed>) = 4 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6059] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] getdents64(4, [pid 6059] <... futex resumed>) = 1 [pid 6057] <... futex resumed>) = 0 [pid 5079] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 6059] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6057] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] getdents64(4, [pid 6059] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6057] <... futex resumed>) = 0 [pid 5079] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 6059] ioctl(4, FS_IOC_GETVERSION [pid 6057] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5079] close(4 [pid 6059] <... ioctl resumed>, 0x20000080) = 0 [pid 5079] <... close resumed>) = 0 [pid 6059] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] rmdir("./53/file0" [pid 6059] <... futex resumed>) = 1 [pid 6057] <... futex resumed>) = 0 [pid 5079] <... rmdir resumed>) = 0 [pid 6059] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6057] exit_group(0 [pid 5079] getdents64(3, [pid 6059] <... futex resumed>) = ? [pid 6057] <... exit_group resumed>) = ? [pid 5079] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 6059] +++ exited with 0 +++ [pid 6057] +++ exited with 0 +++ [pid 5079] close(3) = 0 [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6057, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 5079] rmdir("./53") = 0 [pid 5079] mkdir("./54", 0777) = 0 [ 133.620283][ T6064] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 133.652431][ T6064] REISERFS (device loop3): checking transaction log (loop3) [pid 5079] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5074] umount2("./53", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6069] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5079] ioctl(3, LOOP_CLR_FD [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5074] openat(AT_FDCWD, "./53", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5079] close(3 [pid 5074] <... openat resumed>) = 3 [pid 5079] <... close resumed>) = 0 [pid 5074] fstat(3, [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] getdents64(3, [pid 5079] <... clone resumed>, child_tidptr=0x5555571745d0) = 6072 [pid 5074] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5074] umount2("./53/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 6072 attached [pid 5074] lstat("./53/binderfs", [pid 6072] set_robust_list(0x5555571745e0, 24 [pid 5074] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 6072] <... set_robust_list resumed>) = 0 [pid 5074] unlink("./53/binderfs" [pid 6072] chdir("./54" [pid 5074] <... unlink resumed>) = 0 [pid 6072] <... chdir resumed>) = 0 [pid 6068] <... write resumed>) = 4194304 [pid 5074] umount2("./53/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6072] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6069] <... write resumed>) = 4194304 [pid 6068] munmap(0x7fdb6a513000, 4194304 [pid 6072] <... prctl resumed>) = 0 [pid 6071] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 6069] munmap(0x7fdb6a513000, 4194304 [pid 6068] <... munmap resumed>) = 0 [pid 6072] setpgid(0, 0 [pid 6069] <... munmap resumed>) = 0 [pid 6068] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6069] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 6068] <... openat resumed>) = 4 [pid 6069] <... openat resumed>) = 4 [pid 6068] ioctl(4, LOOP_SET_FD, 3 [pid 6072] <... setpgid resumed>) = 0 [pid 6069] ioctl(4, LOOP_SET_FD, 3 [pid 6072] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6069] <... ioctl resumed>) = 0 [pid 6068] <... ioctl resumed>) = 0 [pid 6068] close(3) = 0 [pid 6068] mkdir("./file0", 0777 [pid 6072] <... openat resumed>) = 3 [pid 6072] write(3, "1000", 4 [pid 6068] <... mkdir resumed>) = 0 [pid 6068] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 6072] <... write resumed>) = 4 [pid 6069] close(3 [pid 6072] close(3 [pid 6069] <... close resumed>) = 0 [pid 6072] <... close resumed>) = 0 [pid 6069] mkdir("./file0", 0777 [pid 6072] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6069] <... mkdir resumed>) = 0 [pid 6072] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6069] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 6072] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [ 133.777095][ T6068] loop1: detected capacity change from 0 to 8192 [ 133.784511][ T6069] loop2: detected capacity change from 0 to 8192 [ 133.803944][ T6069] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 6072] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6072] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[6075], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 6075 [pid 6072] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 6075 attached [pid 6075] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 6075] memfd_create("syzkaller", 0) = 3 [pid 6075] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [pid 6072] <... futex resumed>) = 0 [ 133.819328][ T6068] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 6072] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5074] <... umount2 resumed>) = 0 [pid 5074] umount2("./53/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] lstat("./53/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] umount2("./53/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] openat(AT_FDCWD, "./53/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5074] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5074] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5074] close(4) = 0 [pid 5074] rmdir("./53/file0") = 0 [pid 5074] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [ 133.847798][ T6069] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 133.886154][ T6064] REISERFS (device loop3): Using r5 hash to sort names [pid 5074] close(3 [pid 6075] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 6071] <... write resumed>) = 4194304 [pid 5074] <... close resumed>) = 0 [pid 5074] rmdir("./53") = 0 [pid 5074] mkdir("./54", 0777) = 0 [pid 5074] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5074] ioctl(3, LOOP_CLR_FD [pid 6064] <... mount resumed>) = 0 [pid 5074] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 6071] munmap(0x7fdb6a513000, 4194304 [pid 6064] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5074] close(3 [pid 6071] <... munmap resumed>) = 0 [pid 6064] chdir("./file0" [pid 6071] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6064] <... chdir resumed>) = 0 [pid 5074] <... close resumed>) = 0 [pid 6071] <... openat resumed>) = 4 [pid 6064] ioctl(4, LOOP_CLR_FD [pid 6071] ioctl(4, LOOP_SET_FD, 3 [pid 6064] <... ioctl resumed>) = 0 [ 133.907389][ T6064] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 133.911027][ T6068] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 133.929680][ T6069] REISERFS (device loop2): using ordered data mode [pid 6075] <... write resumed>) = 4194304 [pid 6071] <... ioctl resumed>) = 0 [pid 6064] close(4 [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6064] <... close resumed>) = 0 [pid 6064] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6062] <... futex resumed>) = 0 [pid 6064] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6062] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 6076 attached [pid 6075] munmap(0x7fdb6a513000, 4194304 [pid 6064] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6062] <... futex resumed>) = 0 [pid 6064] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 6062] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6076] set_robust_list(0x5555571745e0, 24 [pid 6075] <... munmap resumed>) = 0 [pid 6064] <... open resumed>) = 4 [pid 5074] <... clone resumed>, child_tidptr=0x5555571745d0) = 6076 [pid 6064] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6062] <... futex resumed>) = 0 [pid 6064] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6062] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6064] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6062] <... futex resumed>) = 0 [pid 6064] ioctl(4, FS_IOC_GETVERSION [pid 6062] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6064] <... ioctl resumed>, 0x20000080) = 0 [pid 6064] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6062] <... futex resumed>) = 0 [pid 6064] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6062] exit_group(0 [pid 6064] <... futex resumed>) = ? [pid 6062] <... exit_group resumed>) = ? [pid 6064] +++ exited with 0 +++ [pid 6062] +++ exited with 0 +++ [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6062, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=16 /* 0.16 s */} --- [pid 5077] umount2("./54", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6071] close(3 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6071] <... close resumed>) = 0 [pid 5077] openat(AT_FDCWD, "./54", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6071] mkdir("./file0", 0777 [pid 5077] <... openat resumed>) = 3 [pid 6076] <... set_robust_list resumed>) = 0 [pid 6075] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 6071] <... mkdir resumed>) = 0 [pid 5077] fstat(3, [pid 6076] chdir("./54" [pid 6075] <... openat resumed>) = 4 [pid 6071] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6076] <... chdir resumed>) = 0 [ 133.953632][ T6071] loop4: detected capacity change from 0 to 8192 [ 133.955413][ T6068] REISERFS (device loop1): using ordered data mode [ 133.968636][ T6068] reiserfs: using flush barriers [ 133.975111][ T6069] reiserfs: using flush barriers [ 133.976764][ T6068] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 133.997812][ T6068] REISERFS (device loop1): checking transaction log (loop1) [pid 6075] ioctl(4, LOOP_SET_FD, 3 [pid 5077] getdents64(3, [pid 6076] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5077] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5077] umount2("./54/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] lstat("./54/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] unlink("./54/binderfs") = 0 [pid 5077] umount2("./54/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6076] <... prctl resumed>) = 0 [pid 6076] setpgid(0, 0) = 0 [pid 6076] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6076] write(3, "1000", 4) = 4 [pid 6076] close(3) = 0 [pid 6076] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6076] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6076] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 6076] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [ 134.012174][ T6069] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 134.012624][ T6075] loop5: detected capacity change from 0 to 8192 [ 134.034299][ T6069] REISERFS (device loop2): checking transaction log (loop2) [ 134.045114][ T6071] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 6076] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[6078], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 6078 [pid 6076] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6076] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 6078 attached [pid 6075] <... ioctl resumed>) = 0 [pid 6075] close(3) = 0 [pid 6078] set_robust_list(0x7fdb729339e0, 24 [pid 6075] mkdir("./file0", 0777 [pid 6078] <... set_robust_list resumed>) = 0 [pid 6078] memfd_create("syzkaller", 0) = 3 [pid 6078] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [pid 6075] <... mkdir resumed>) = 0 [ 134.059564][ T6071] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 134.069967][ T6071] REISERFS (device loop4): using ordered data mode [ 134.076977][ T6071] reiserfs: using flush barriers [ 134.089924][ T6071] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 6075] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 6078] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5077] <... umount2 resumed>) = 0 [pid 5077] umount2("./54/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 134.124478][ T6071] REISERFS (device loop4): checking transaction log (loop4) [ 134.142579][ T6075] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5077] lstat("./54/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] umount2("./54/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] openat(AT_FDCWD, "./54/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5077] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5077] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5077] close(4) = 0 [ 134.226180][ T6075] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 134.236699][ T6068] REISERFS (device loop1): Using r5 hash to sort names [ 134.244661][ T6075] REISERFS (device loop5): using ordered data mode [ 134.251999][ T6068] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 134.262592][ T6075] reiserfs: using flush barriers [pid 5077] rmdir("./54/file0" [pid 6068] <... mount resumed>) = 0 [pid 5077] <... rmdir resumed>) = 0 [pid 6078] <... write resumed>) = 4194304 [pid 6068] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5077] getdents64(3, [pid 6078] munmap(0x7fdb6a513000, 4194304 [pid 6068] <... openat resumed>) = 3 [pid 5077] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 6078] <... munmap resumed>) = 0 [pid 6068] chdir("./file0" [pid 5077] close(3 [pid 6078] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6068] <... chdir resumed>) = 0 [pid 5077] <... close resumed>) = 0 [pid 6068] ioctl(4, LOOP_CLR_FD [pid 5077] rmdir("./54" [pid 6078] <... openat resumed>) = 4 [pid 6068] <... ioctl resumed>) = 0 [pid 5077] <... rmdir resumed>) = 0 [pid 6078] ioctl(4, LOOP_SET_FD, 3 [pid 6068] close(4 [pid 5077] mkdir("./55", 0777 [pid 6068] <... close resumed>) = 0 [pid 5077] <... mkdir resumed>) = 0 [pid 6068] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 6068] <... futex resumed>) = 1 [pid 6065] <... futex resumed>) = 0 [pid 5077] <... openat resumed>) = 3 [pid 6068] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6065] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] ioctl(3, LOOP_CLR_FD [pid 6068] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6065] <... futex resumed>) = 0 [pid 5077] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 6068] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 6065] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5077] close(3 [pid 6068] <... open resumed>) = 4 [pid 5077] <... close resumed>) = 0 [pid 6068] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6068] <... futex resumed>) = 1 [pid 6065] <... futex resumed>) = 0 [pid 6068] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6065] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] <... clone resumed>, child_tidptr=0x5555571745d0) = 6080 [pid 6078] <... ioctl resumed>) = 0 [pid 6068] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6065] <... futex resumed>) = 0 [pid 6078] close(3 [pid 6068] ioctl(4, FS_IOC_GETVERSION [pid 6065] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6078] <... close resumed>) = 0 [pid 6068] <... ioctl resumed>, 0x20000080) = 0 [pid 6078] mkdir("./file0", 0777 [pid 6068] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6065] <... futex resumed>) = 0 [pid 6078] <... mkdir resumed>) = 0 [pid 6068] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6065] exit_group(0 [pid 6078] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 6068] <... futex resumed>) = ? [pid 6065] <... exit_group resumed>) = ? [pid 6068] +++ exited with 0 +++ [pid 6065] +++ exited with 0 +++ [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6065, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=18 /* 0.18 s */} --- [pid 5075] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 6080 attached ) = 0 [ 134.271072][ T6075] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 134.292861][ T6078] loop0: detected capacity change from 0 to 8192 [pid 6080] set_robust_list(0x5555571745e0, 24 [pid 5075] umount2("./53", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5075] openat(AT_FDCWD, "./53", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5075] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5075] umount2("./53/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5075] lstat("./53/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] unlink("./53/binderfs") = 0 [pid 5075] umount2("./53/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6080] <... set_robust_list resumed>) = 0 [pid 6080] chdir("./55") = 0 [pid 6080] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6080] setpgid(0, 0) = 0 [pid 6080] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [ 134.320255][ T6078] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 134.328755][ T6075] REISERFS (device loop5): checking transaction log (loop5) [ 134.334212][ T6069] REISERFS (device loop2): Using r5 hash to sort names [pid 6080] write(3, "1000", 4) = 4 [pid 6080] close(3) = 0 [pid 6080] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6080] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6080] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 6080] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6080] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[6082], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 6082 [pid 6080] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6080] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6069] <... mount resumed>) = 0 [pid 6069] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 6069] chdir("./file0"./strace-static-x86_64: Process 6082 attached [pid 6082] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 6069] <... chdir resumed>) = 0 [pid 6069] ioctl(4, LOOP_CLR_FD [pid 6082] memfd_create("syzkaller", 0 [pid 6069] <... ioctl resumed>) = 0 [pid 6069] close(4 [pid 6082] <... memfd_create resumed>) = 3 [pid 6082] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6069] <... close resumed>) = 0 [pid 6082] <... mmap resumed>) = 0x7fdb6a513000 [pid 6069] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6066] <... futex resumed>) = 0 [pid 6069] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [ 134.374300][ T6078] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 134.386119][ T6078] REISERFS (device loop0): using ordered data mode [ 134.394648][ T6078] reiserfs: using flush barriers [ 134.403891][ T6069] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 6066] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6069] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6066] <... futex resumed>) = 0 [pid 6069] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 6066] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5075] <... umount2 resumed>) = 0 [pid 6069] <... open resumed>) = 4 [pid 6069] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5075] umount2("./53/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6069] <... futex resumed>) = 1 [pid 6066] <... futex resumed>) = 0 [pid 6069] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6066] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6069] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6066] <... futex resumed>) = 0 [pid 5075] lstat("./53/file0", [pid 6069] ioctl(4, FS_IOC_GETVERSION [pid 6066] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5075] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6082] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 6069] <... ioctl resumed>, 0x20000080) = 0 [pid 5075] umount2("./53/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6069] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6069] <... futex resumed>) = 1 [pid 6066] <... futex resumed>) = 0 [ 134.435359][ T6078] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5075] openat(AT_FDCWD, "./53/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6069] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6066] exit_group(0 [pid 6069] <... futex resumed>) = ? [pid 6066] <... exit_group resumed>) = ? [pid 5075] <... openat resumed>) = 4 [pid 6069] +++ exited with 0 +++ [pid 6066] +++ exited with 0 +++ [pid 5075] fstat(4, [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6066, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=14 /* 0.14 s */} --- [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5075] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5076] umount2("./54", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5075] getdents64(4, [pid 5076] openat(AT_FDCWD, "./54", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5075] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5076] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] getdents64(3, [pid 5075] close(4 [pid 5076] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5076] umount2("./54/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... close resumed>) = 0 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] lstat("./54/binderfs", [pid 5075] rmdir("./53/file0" [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] unlink("./54/binderfs" [pid 5075] <... rmdir resumed>) = 0 [pid 5076] <... unlink resumed>) = 0 [pid 5076] umount2("./54/file0", MNT_DETACH|UMOUNT_NOFOLLOW [ 134.505615][ T6078] REISERFS (device loop0): checking transaction log (loop0) [pid 5075] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5075] close(3) = 0 [pid 6082] <... write resumed>) = 4194304 [pid 5075] rmdir("./53") = 0 [pid 5075] mkdir("./54", 0777) = 0 [pid 5075] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5075] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 6082] munmap(0x7fdb6a513000, 4194304 [pid 5075] close(3 [pid 6082] <... munmap resumed>) = 0 [pid 5075] <... close resumed>) = 0 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 6083 [pid 6082] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [ 134.580222][ T6071] REISERFS (device loop4): Using r5 hash to sort names [ 134.616738][ T6082] loop3: detected capacity change from 0 to 8192 [pid 6082] ioctl(4, LOOP_SET_FD, 3) = 0 ./strace-static-x86_64: Process 6083 attached [pid 6083] set_robust_list(0x5555571745e0, 24) = 0 [pid 6083] chdir("./54") = 0 [pid 6082] close(3 [pid 6083] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6082] <... close resumed>) = 0 [pid 6083] <... prctl resumed>) = 0 [pid 6082] mkdir("./file0", 0777 [pid 6083] setpgid(0, 0) = 0 [pid 6083] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [ 134.616969][ T6071] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [pid 6083] write(3, "1000", 4 [pid 6082] <... mkdir resumed>) = 0 [pid 6083] <... write resumed>) = 4 [pid 6082] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 6083] close(3 [pid 6071] <... mount resumed>) = 0 [pid 6083] <... close resumed>) = 0 [pid 6071] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6083] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6083] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6071] <... openat resumed>) = 3 [pid 6071] chdir("./file0") = 0 [pid 6071] ioctl(4, LOOP_CLR_FD [pid 6083] <... futex resumed>) = 0 [pid 6083] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 6083] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 6071] <... ioctl resumed>) = 0 [pid 6083] <... mprotect resumed>) = 0 [pid 6071] close(4 [pid 6083] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6071] <... close resumed>) = 0 [pid 6071] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6071] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6067] <... futex resumed>) = 0 [pid 6083] <... clone resumed>, parent_tid=[6085], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 6085 [pid 6067] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6083] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6067] <... futex resumed>) = 1 [pid 6083] <... futex resumed>) = 0 [pid 6071] <... futex resumed>) = 0 [pid 6067] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6083] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [ 134.657126][ T6075] REISERFS (device loop5): Using r5 hash to sort names [ 134.691264][ T6075] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 6071] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6071] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6071] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL./strace-static-x86_64: Process 6085 attached [pid 6085] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 6085] memfd_create("syzkaller", 0) = 3 [pid 6085] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [pid 6067] <... futex resumed>) = 0 [pid 6067] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6071] <... futex resumed>) = 0 [pid 6067] <... futex resumed>) = 1 [pid 6071] ioctl(4, FS_IOC_GETVERSION [pid 6067] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6071] <... ioctl resumed>, 0x20000080) = 0 [pid 6071] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6067] <... futex resumed>) = 0 [pid 6071] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6067] exit_group(0 [pid 6071] <... futex resumed>) = ? [pid 6067] <... exit_group resumed>) = ? [pid 6071] +++ exited with 0 +++ [pid 6067] +++ exited with 0 +++ [pid 5078] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6067, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=21 /* 0.21 s */} --- [pid 5078] umount2("./55", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5078] openat(AT_FDCWD, "./55", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5078] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5078] umount2("./55/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5078] lstat("./55/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5078] unlink("./55/binderfs") = 0 [pid 5078] umount2("./55/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6075] <... mount resumed>) = 0 [pid 6075] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 6075] chdir("./file0") = 0 [pid 6075] ioctl(4, LOOP_CLR_FD) = 0 [ 134.706524][ T6082] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 134.745527][ T6082] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [pid 6075] close(4 [pid 6085] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 6078] <... mount resumed>) = 0 [pid 6075] <... close resumed>) = 0 [pid 5076] <... umount2 resumed>) = 0 [pid 6078] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6075] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5076] umount2("./54/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6075] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6078] <... openat resumed>) = 3 [pid 6072] <... futex resumed>) = 0 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6078] chdir("./file0" [pid 6072] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5076] lstat("./54/file0", [pid 6078] <... chdir resumed>) = 0 [pid 6075] <... futex resumed>) = 0 [pid 6072] <... futex resumed>) = 1 [pid 6078] ioctl(4, LOOP_CLR_FD [pid 6075] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5076] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6078] <... ioctl resumed>) = 0 [pid 6075] <... open resumed>) = 4 [pid 6072] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6078] close(4 [pid 6075] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5076] umount2("./54/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6078] <... close resumed>) = 0 [pid 6075] <... futex resumed>) = 0 [pid 6072] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6078] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6075] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 134.756591][ T6078] REISERFS (device loop0): Using r5 hash to sort names [ 134.765969][ T6078] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 134.783687][ T6082] REISERFS (device loop3): using ordered data mode [pid 6085] <... write resumed>) = 4194304 [pid 6078] <... futex resumed>) = 1 [pid 6076] <... futex resumed>) = 0 [pid 6072] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5076] openat(AT_FDCWD, "./54/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6078] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6076] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6072] <... futex resumed>) = 1 [pid 6076] <... futex resumed>) = 0 [pid 6072] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5076] <... openat resumed>) = 4 [pid 6078] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6085] munmap(0x7fdb6a513000, 4194304 [pid 6078] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 6076] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6075] <... futex resumed>) = 0 [pid 5076] fstat(4, [pid 6075] ioctl(4, FS_IOC_GETVERSION, 0x20000080) = 0 [pid 6075] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6078] <... open resumed>) = 4 [pid 6075] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6078] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6072] <... futex resumed>) = 0 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6078] <... futex resumed>) = 1 [pid 6076] <... futex resumed>) = 0 [pid 6072] exit_group(0 [pid 5076] getdents64(4, [pid 6085] <... munmap resumed>) = 0 [pid 6076] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5076] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 6085] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6078] ioctl(4, FS_IOC_GETVERSION [pid 6076] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6075] <... futex resumed>) = ? [pid 6072] <... exit_group resumed>) = ? [pid 5076] getdents64(4, [pid 6085] <... openat resumed>) = 4 [pid 6078] <... ioctl resumed>, 0x20000080) = 0 [pid 6075] +++ exited with 0 +++ [pid 6078] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6072] +++ exited with 0 +++ [pid 6085] ioctl(4, LOOP_SET_FD, 3 [pid 5076] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6072, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} --- [ 134.824752][ T6082] reiserfs: using flush barriers [pid 6078] <... futex resumed>) = 1 [pid 6076] <... futex resumed>) = 0 [pid 5079] restart_syscall(<... resuming interrupted clone ...> [pid 5076] close(4 [pid 5079] <... restart_syscall resumed>) = 0 [pid 6078] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6076] exit_group(0 [pid 5076] <... close resumed>) = 0 [pid 6076] <... exit_group resumed>) = ? [pid 5076] rmdir("./54/file0" [pid 6085] <... ioctl resumed>) = 0 [pid 6078] <... futex resumed>) = ? [pid 5079] umount2("./54", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5078] <... umount2 resumed>) = 0 [pid 5076] <... rmdir resumed>) = 0 [pid 6085] close(3 [pid 6078] +++ exited with 0 +++ [pid 6076] +++ exited with 0 +++ [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./54", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5079] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5079] umount2("./54/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] lstat("./54/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5079] unlink("./54/binderfs") = 0 [pid 5079] umount2("./54/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6085] <... close resumed>) = 0 [pid 5078] umount2("./55/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] getdents64(3, [pid 6085] mkdir("./file0", 0777 [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6076, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=17 /* 0.17 s */} --- [pid 6085] <... mkdir resumed>) = 0 [pid 5074] umount2("./54", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6085] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5078] lstat("./55/file0", [pid 5076] close(3 [pid 5078] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] <... close resumed>) = 0 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5078] umount2("./55/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] rmdir("./54" [pid 5074] openat(AT_FDCWD, "./54", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] <... rmdir resumed>) = 0 [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5078] openat(AT_FDCWD, "./55/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] mkdir("./55", 0777 [pid 5074] <... openat resumed>) = 3 [pid 5078] <... openat resumed>) = 4 [ 134.845443][ T6085] loop1: detected capacity change from 0 to 8192 [ 134.854983][ T6082] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 134.885893][ T6082] REISERFS (device loop3): checking transaction log (loop3) [pid 5078] fstat(4, [pid 5076] <... mkdir resumed>) = 0 [pid 5074] fstat(3, [pid 5078] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] getdents64(4, [pid 5076] <... openat resumed>) = 3 [pid 5074] getdents64(3, [pid 5078] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5076] ioctl(3, LOOP_CLR_FD [pid 5074] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5078] getdents64(4, [pid 5076] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5074] umount2("./54/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5078] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5076] close(3 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5078] close(4 [pid 5076] <... close resumed>) = 0 [pid 5074] lstat("./54/binderfs", [pid 5078] <... close resumed>) = 0 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5074] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5078] rmdir("./55/file0" [pid 5074] unlink("./54/binderfs" [pid 5078] <... rmdir resumed>) = 0 [pid 5076] <... clone resumed>, child_tidptr=0x5555571745d0) = 6087 [pid 5074] <... unlink resumed>) = 0 [pid 5078] getdents64(3, [pid 5074] umount2("./54/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5078] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5078] close(3) = 0 [pid 5078] rmdir("./55") = 0 [pid 5078] mkdir("./56", 0777) = 0 [pid 5078] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5078] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5078] close(3) = 0 [pid 5078] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 6088 [ 134.914711][ T6085] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 134.950429][ T6085] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal ./strace-static-x86_64: Process 6088 attached [ 134.964155][ T6085] REISERFS (device loop1): using ordered data mode [ 134.970715][ T6085] reiserfs: using flush barriers [ 134.978815][ T6085] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 6088] set_robust_list(0x5555571745e0, 24./strace-static-x86_64: Process 6087 attached ) = 0 [pid 6088] chdir("./56") = 0 [pid 6088] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6088] setpgid(0, 0) = 0 [pid 6088] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6088] write(3, "1000", 4) = 4 [pid 6088] close(3) = 0 [pid 6088] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6088] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6088] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 6087] set_robust_list(0x5555571745e0, 24) = 0 [pid 6088] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 6087] chdir("./55" [pid 6088] <... mprotect resumed>) = 0 [pid 6087] <... chdir resumed>) = 0 [pid 6087] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6087] setpgid(0, 0 [pid 6088] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6087] <... setpgid resumed>) = 0 [pid 6087] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6087] write(3, "1000", 4 [pid 6088] <... clone resumed>, parent_tid=[6089], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 6089 [pid 6088] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6087] <... write resumed>) = 4 [pid 6088] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6087] close(3./strace-static-x86_64: Process 6089 attached [pid 6089] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 6089] memfd_create("syzkaller", 0 [pid 6087] <... close resumed>) = 0 [pid 6089] <... memfd_create resumed>) = 3 [pid 6087] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6089] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6087] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6089] <... mmap resumed>) = 0x7fdb6a513000 [pid 6087] <... futex resumed>) = 0 [pid 6087] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [ 135.008373][ T6085] REISERFS (device loop1): checking transaction log (loop1) [pid 6087] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6087] clone(child_stack=0x7fdb729333f0, 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 6090 attached [pid 6090] set_robust_list(0x7fdb729339e0, 24 [pid 6087] <... clone resumed>, parent_tid=[6090], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 6090 [pid 6090] <... set_robust_list resumed>) = 0 [pid 6087] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6090] memfd_create("syzkaller", 0 [pid 6087] <... futex resumed>) = 0 [pid 5074] <... umount2 resumed>) = 0 [pid 6090] <... memfd_create resumed>) = 3 [pid 6087] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6090] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [pid 5079] <... umount2 resumed>) = 0 [pid 5079] umount2("./54/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] lstat("./54/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] umount2("./54/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./54/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5079] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5079] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5079] close(4) = 0 [pid 5079] rmdir("./54/file0") = 0 [pid 5079] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5079] close(3) = 0 [pid 5079] rmdir("./54") = 0 [ 135.103782][ T6085] REISERFS (device loop1): Using r5 hash to sort names [ 135.130880][ T6085] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 135.144174][ T6082] REISERFS (device loop3): Using r5 hash to sort names [pid 5079] mkdir("./55", 0777) = 0 [pid 5079] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5074] umount2("./54/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5079] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5079] close(3) = 0 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6085] <... mount resumed>) = 0 [pid 5074] lstat("./54/file0", [pid 5079] <... clone resumed>, child_tidptr=0x5555571745d0) = 6091 [pid 5074] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6085] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5074] umount2("./54/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 6085] <... openat resumed>) = 3 ./strace-static-x86_64: Process 6091 attached [pid 6090] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 6089] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 6085] chdir("./file0" [pid 6082] <... mount resumed>) = 0 [pid 5074] openat(AT_FDCWD, "./54/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6091] set_robust_list(0x5555571745e0, 24 [pid 6085] <... chdir resumed>) = 0 [pid 6091] <... set_robust_list resumed>) = 0 [pid 6085] ioctl(4, LOOP_CLR_FD [pid 6082] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5074] <... openat resumed>) = 4 [pid 6091] chdir("./55" [pid 6085] <... ioctl resumed>) = 0 [pid 6082] <... openat resumed>) = 3 [pid 5074] fstat(4, [pid 6091] <... chdir resumed>) = 0 [ 135.152111][ T6082] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [pid 6085] close(4 [pid 6082] chdir("./file0" [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6091] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6090] <... write resumed>) = 4194304 [pid 6085] <... close resumed>) = 0 [pid 6082] <... chdir resumed>) = 0 [pid 5074] getdents64(4, [pid 6091] <... prctl resumed>) = 0 [pid 6090] munmap(0x7fdb6a513000, 4194304 [pid 6085] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6082] ioctl(4, LOOP_CLR_FD [pid 6091] setpgid(0, 0 [pid 6085] <... futex resumed>) = 1 [pid 6083] <... futex resumed>) = 0 [pid 6082] <... ioctl resumed>) = 0 [pid 5074] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 6090] <... munmap resumed>) = 0 [pid 6083] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6091] <... setpgid resumed>) = 0 [pid 6090] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 6085] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 6083] <... futex resumed>) = 0 [pid 6082] close(4 [pid 5074] getdents64(4, [pid 6091] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6090] <... openat resumed>) = 4 [pid 6085] <... open resumed>) = 4 [pid 6083] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6082] <... close resumed>) = 0 [pid 5074] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 6091] <... openat resumed>) = 3 [pid 6090] ioctl(4, LOOP_SET_FD, 3 [pid 6082] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5074] close(4) = 0 [pid 6091] write(3, "1000", 4 [pid 6085] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6082] <... futex resumed>) = 1 [pid 6080] <... futex resumed>) = 0 [pid 5074] rmdir("./54/file0" [pid 6091] <... write resumed>) = 4 [pid 6090] <... ioctl resumed>) = 0 [pid 6089] <... write resumed>) = 4194304 [pid 6085] <... futex resumed>) = 1 [pid 6083] <... futex resumed>) = 0 [pid 6082] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6080] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6091] close(3 [pid 6090] close(3 [pid 6089] munmap(0x7fdb6a513000, 4194304 [pid 6085] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6083] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6082] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6080] <... futex resumed>) = 0 [pid 5074] <... rmdir resumed>) = 0 [pid 6091] <... close resumed>) = 0 [pid 6090] <... close resumed>) = 0 [pid 6089] <... munmap resumed>) = 0 [pid 6085] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6083] <... futex resumed>) = 0 [pid 6082] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5074] getdents64(3, [pid 6091] symlink("/dev/binderfs", "./binderfs" [pid 6090] mkdir("./file0", 0777 [pid 6089] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6085] ioctl(4, FS_IOC_GETVERSION [pid 6083] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6082] <... open resumed>) = 4 [pid 6080] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5074] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 6091] <... symlink resumed>) = 0 [pid 6090] <... mkdir resumed>) = 0 [pid 6089] <... openat resumed>) = 4 [pid 6085] <... ioctl resumed>, 0x20000080) = 0 [pid 6082] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6080] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5074] close(3 [pid 6091] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6090] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 6089] ioctl(4, LOOP_SET_FD, 3 [pid 6085] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6082] <... futex resumed>) = 0 [pid 6080] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5074] <... close resumed>) = 0 [pid 6091] <... futex resumed>) = 0 [pid 6085] <... futex resumed>) = 1 [pid 6083] <... futex resumed>) = 0 [pid 6082] ioctl(4, FS_IOC_GETVERSION [pid 6080] <... futex resumed>) = 0 [pid 5074] rmdir("./54" [pid 6091] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6089] <... ioctl resumed>) = 0 [pid 6085] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6083] exit_group(0 [pid 6082] <... ioctl resumed>, 0x20000080) = 0 [pid 6080] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5074] <... rmdir resumed>) = 0 [pid 6091] <... mmap resumed>) = 0x7fdb72913000 [pid 6089] close(3 [pid 6085] <... futex resumed>) = ? [pid 6083] <... exit_group resumed>) = ? [pid 6082] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6080] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5074] mkdir("./55", 0777 [pid 6091] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 6089] <... close resumed>) = 0 [pid 6085] +++ exited with 0 +++ [pid 6083] +++ exited with 0 +++ [pid 6082] <... futex resumed>) = 0 [pid 6080] exit_group(0 [pid 5074] <... mkdir resumed>) = 0 [pid 6080] <... exit_group resumed>) = ? [pid 6091] <... mprotect resumed>) = 0 [ 135.232683][ T6090] loop2: detected capacity change from 0 to 8192 [ 135.260285][ T6089] loop4: detected capacity change from 0 to 8192 [pid 6091] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[6093], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 6093 [pid 6091] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6091] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6089] mkdir("./file0", 0777) = 0 ./strace-static-x86_64: Process 6093 attached [pid 6089] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5074] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6093] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 6093] memfd_create("syzkaller", 0) = 3 [pid 6093] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [pid 6082] +++ exited with 0 +++ [pid 6080] +++ exited with 0 +++ [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6083, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=14 /* 0.14 s */} --- [pid 5074] <... openat resumed>) = 3 [ 135.274809][ T6090] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 135.288291][ T6090] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 135.300314][ T6090] REISERFS (device loop2): using ordered data mode [ 135.300627][ T6089] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 135.321140][ T6090] reiserfs: using flush barriers [pid 6093] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6080, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=14 /* 0.14 s */} --- [pid 5075] umount2("./54", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] ioctl(3, LOOP_CLR_FD [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5075] openat(AT_FDCWD, "./54", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5074] close(3 [pid 5077] umount2("./55", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... openat resumed>) = 3 [pid 5074] <... close resumed>) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] fstat(3, [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] openat(AT_FDCWD, "./55", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] <... openat resumed>) = 3 [pid 5075] getdents64(3, [pid 5074] <... clone resumed>, child_tidptr=0x5555571745d0) = 6095 [pid 5077] fstat(3, [pid 5075] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] umount2("./54/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] getdents64(3, [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5075] lstat("./54/binderfs", [pid 5077] umount2("./55/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] unlink("./54/binderfs" [pid 5077] lstat("./55/binderfs", [pid 5075] <... unlink resumed>) = 0 [pid 5077] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] umount2("./54/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] unlink("./55/binderfs") = 0 [ 135.329103][ T6090] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 135.347193][ T6089] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 135.357694][ T6089] REISERFS (device loop4): using ordered data mode [ 135.366303][ T6089] reiserfs: using flush barriers [pid 5077] umount2("./55/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 6095 attached [pid 6095] set_robust_list(0x5555571745e0, 24) = 0 [pid 6095] chdir("./55") = 0 [pid 6095] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6095] setpgid(0, 0) = 0 [pid 6095] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6095] write(3, "1000", 4) = 4 [pid 6095] close(3) = 0 [pid 6095] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6095] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 135.375322][ T6089] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 135.375431][ T6090] REISERFS (device loop2): checking transaction log (loop2) [pid 6095] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 6095] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6095] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[6096], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 6096 [pid 6095] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6095] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 6096 attached [pid 6096] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 6096] memfd_create("syzkaller", 0) = 3 [pid 6096] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [ 135.440772][ T6089] REISERFS (device loop4): checking transaction log (loop4) [pid 6093] <... write resumed>) = 4194304 [pid 6093] munmap(0x7fdb6a513000, 4194304) = 0 [pid 6093] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 6093] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5075] <... umount2 resumed>) = 0 [pid 6093] close(3) = 0 [pid 6093] mkdir("./file0", 0777) = 0 [pid 6093] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5075] umount2("./54/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... umount2 resumed>) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] umount2("./55/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] lstat("./54/file0", [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] lstat("./55/file0", [pid 5075] umount2("./54/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5077] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5077] umount2("./55/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5075] openat(AT_FDCWD, "./54/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] <... openat resumed>) = 4 [pid 5077] openat(AT_FDCWD, "./55/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5075] fstat(4, [pid 5077] <... openat resumed>) = 4 [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] fstat(4, [ 135.534977][ T6093] loop5: detected capacity change from 0 to 8192 [ 135.560182][ T6093] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5075] getdents64(4, [pid 6096] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5077] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5077] getdents64(4, [pid 5075] getdents64(4, [pid 5077] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5075] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5077] getdents64(4, [pid 5075] close(4 [pid 5077] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5075] <... close resumed>) = 0 [pid 5077] close(4 [pid 5075] rmdir("./54/file0" [pid 5077] <... close resumed>) = 0 [pid 5075] <... rmdir resumed>) = 0 [pid 5077] rmdir("./55/file0" [pid 5075] getdents64(3, [pid 5077] <... rmdir resumed>) = 0 [pid 5075] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5077] getdents64(3, [pid 5075] close(3 [pid 5077] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5075] <... close resumed>) = 0 [pid 5077] close(3 [pid 5075] rmdir("./54" [pid 5077] <... close resumed>) = 0 [pid 5075] <... rmdir resumed>) = 0 [pid 5077] rmdir("./55" [pid 5075] mkdir("./55", 0777 [pid 5077] <... rmdir resumed>) = 0 [pid 5075] <... mkdir resumed>) = 0 [pid 5077] mkdir("./56", 0777 [pid 5075] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5077] <... mkdir resumed>) = 0 [pid 5075] <... openat resumed>) = 3 [pid 5077] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5075] ioctl(3, LOOP_CLR_FD [pid 5077] <... openat resumed>) = 3 [pid 5075] <... ioctl resumed>) = -1 ENXIO (No such device or address) [ 135.599112][ T6093] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 135.626168][ T6090] REISERFS (device loop2): Using r5 hash to sort names [ 135.633296][ T6093] REISERFS (device loop5): using ordered data mode [pid 5077] ioctl(3, LOOP_CLR_FD [pid 5075] close(3 [pid 5077] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5075] <... close resumed>) = 0 [pid 5077] close(3 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5077] <... close resumed>) = 0 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] <... clone resumed>, child_tidptr=0x5555571745d0) = 6098 ./strace-static-x86_64: Process 6099 attached [pid 5077] <... clone resumed>, child_tidptr=0x5555571745d0) = 6099 [pid 6099] set_robust_list(0x5555571745e0, 24) = 0 ./strace-static-x86_64: Process 6098 attached [pid 6098] set_robust_list(0x5555571745e0, 24) = 0 [pid 6098] chdir("./55") = 0 [pid 6098] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6098] setpgid(0, 0) = 0 [pid 6098] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6098] write(3, "1000", 4) = 4 [pid 6098] close(3) = 0 [pid 6098] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6098] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6099] chdir("./56" [pid 6098] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6099] <... chdir resumed>) = 0 [pid 6098] <... mmap resumed>) = 0x7fdb72913000 [pid 6096] <... write resumed>) = 4194304 [pid 6090] <... mount resumed>) = 0 [pid 6098] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [ 135.641836][ T6090] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 135.652182][ T6093] reiserfs: using flush barriers [ 135.666576][ T6093] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 6098] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[6100], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 6100 [pid 6098] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6099] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6098] <... futex resumed>) = 0 [pid 6096] munmap(0x7fdb6a513000, 4194304 [pid 6090] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6099] <... prctl resumed>) = 0 [pid 6098] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6096] <... munmap resumed>) = 0 [pid 6090] <... openat resumed>) = 3 [pid 6099] setpgid(0, 0 [pid 6096] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6090] chdir("./file0"./strace-static-x86_64: Process 6100 attached [pid 6099] <... setpgid resumed>) = 0 [pid 6096] <... openat resumed>) = 4 [pid 6090] <... chdir resumed>) = 0 [pid 6100] set_robust_list(0x7fdb729339e0, 24 [pid 6099] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6096] ioctl(4, LOOP_SET_FD, 3 [pid 6090] ioctl(4, LOOP_CLR_FD [pid 6100] <... set_robust_list resumed>) = 0 [pid 6099] <... openat resumed>) = 3 [pid 6100] memfd_create("syzkaller", 0) = 3 [pid 6100] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [pid 6099] write(3, "1000", 4 [pid 6096] <... ioctl resumed>) = 0 [pid 6090] <... ioctl resumed>) = 0 [pid 6099] <... write resumed>) = 4 [pid 6096] close(3 [pid 6090] close(4 [pid 6099] close(3 [pid 6096] <... close resumed>) = 0 [pid 6090] <... close resumed>) = 0 [pid 6099] <... close resumed>) = 0 [pid 6096] mkdir("./file0", 0777 [ 135.695856][ T6093] REISERFS (device loop5): checking transaction log (loop5) [ 135.715619][ T6096] loop0: detected capacity change from 0 to 8192 [pid 6090] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6099] symlink("/dev/binderfs", "./binderfs" [pid 6096] <... mkdir resumed>) = 0 [pid 6090] <... futex resumed>) = 1 [pid 6087] <... futex resumed>) = 0 [pid 6099] <... symlink resumed>) = 0 [pid 6096] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 6090] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6087] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6099] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6090] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6087] <... futex resumed>) = 0 [pid 6099] <... futex resumed>) = 0 [pid 6090] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 6087] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6099] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6090] <... open resumed>) = 4 [pid 6099] <... mmap resumed>) = 0x7fdb72913000 [pid 6099] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 6090] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6099] <... mprotect resumed>) = 0 [pid 6090] <... futex resumed>) = 1 [pid 6087] <... futex resumed>) = 0 [pid 6099] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6090] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6087] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6090] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6087] <... futex resumed>) = 0 [pid 6099] <... clone resumed>, parent_tid=[6102], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 6102 [pid 6090] ioctl(4, FS_IOC_GETVERSION [pid 6087] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6099] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6090] <... ioctl resumed>, 0x20000080) = 0 [pid 6099] <... futex resumed>) = 0 [pid 6090] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6099] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6090] <... futex resumed>) = 1 [pid 6087] <... futex resumed>) = 0 [pid 6090] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6087] exit_group(0 [pid 6090] <... futex resumed>) = ? [pid 6087] <... exit_group resumed>) = ? [ 135.746406][ T6089] REISERFS (device loop4): Using r5 hash to sort names [ 135.761802][ T6096] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 135.764820][ T6089] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. ./strace-static-x86_64: Process 6102 attached [pid 6102] set_robust_list(0x7fdb729339e0, 24 [pid 6090] +++ exited with 0 +++ [pid 6087] +++ exited with 0 +++ [pid 6089] <... mount resumed>) = 0 [pid 6089] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6087, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=17 /* 0.17 s */} --- [pid 6102] <... set_robust_list resumed>) = 0 [pid 6100] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 6089] <... openat resumed>) = 3 [pid 5076] umount2("./55", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6102] memfd_create("syzkaller", 0 [pid 6089] chdir("./file0" [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6089] <... chdir resumed>) = 0 [pid 6102] <... memfd_create resumed>) = 3 [pid 6089] ioctl(4, LOOP_CLR_FD [pid 5076] openat(AT_FDCWD, "./55", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6102] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6089] <... ioctl resumed>) = 0 [pid 5076] <... openat resumed>) = 3 [pid 6102] <... mmap resumed>) = 0x7fdb6a513000 [pid 6089] close(4 [ 135.796746][ T6096] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [pid 5076] fstat(3, [pid 6102] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 6089] <... close resumed>) = 0 [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6089] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5076] getdents64(3, [pid 6089] <... futex resumed>) = 1 [pid 6088] <... futex resumed>) = 0 [pid 6089] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6088] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5076] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 6089] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6088] <... futex resumed>) = 0 [pid 5076] umount2("./55/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6089] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 6088] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6089] <... open resumed>) = 4 [pid 5076] lstat("./55/binderfs", [pid 6089] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6088] <... futex resumed>) = 0 [pid 5076] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 6089] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6088] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5076] unlink("./55/binderfs" [pid 6089] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6088] <... futex resumed>) = 0 [pid 6089] ioctl(4, FS_IOC_GETVERSION [ 135.855658][ T6096] REISERFS (device loop0): using ordered data mode [ 135.862403][ T6096] reiserfs: using flush barriers [ 135.863659][ T6093] REISERFS (device loop5): Using r5 hash to sort names [ 135.874825][ T6096] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 6088] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5076] <... unlink resumed>) = 0 [pid 6102] <... write resumed>) = 4194304 [pid 6089] <... ioctl resumed>, 0x20000080) = 0 [pid 6102] munmap(0x7fdb6a513000, 4194304 [pid 6093] <... mount resumed>) = 0 [pid 6089] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5076] umount2("./55/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6102] <... munmap resumed>) = 0 [pid 6093] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6089] <... futex resumed>) = 1 [pid 6088] <... futex resumed>) = 0 [pid 6102] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 6093] <... openat resumed>) = 3 [pid 6089] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6088] exit_group(0 [pid 6102] <... openat resumed>) = 4 [pid 6100] <... write resumed>) = 4194304 [pid 6093] chdir("./file0" [pid 6089] <... futex resumed>) = ? [pid 6088] <... exit_group resumed>) = ? [pid 6102] ioctl(4, LOOP_SET_FD, 3 [pid 6100] munmap(0x7fdb6a513000, 4194304 [pid 6093] <... chdir resumed>) = 0 [pid 6089] +++ exited with 0 +++ [pid 6088] +++ exited with 0 +++ [ 135.916913][ T6096] REISERFS (device loop0): checking transaction log (loop0) [ 135.920284][ T6093] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 6100] <... munmap resumed>) = 0 [pid 6093] ioctl(4, LOOP_CLR_FD [pid 5078] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6088, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=22 /* 0.22 s */} --- [pid 6102] <... ioctl resumed>) = 0 [pid 6100] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6093] <... ioctl resumed>) = 0 [pid 6102] close(3 [pid 6100] <... openat resumed>) = 4 [pid 6093] close(4 [pid 6102] <... close resumed>) = 0 [pid 6100] ioctl(4, LOOP_SET_FD, 3 [pid 6093] <... close resumed>) = 0 [pid 6102] mkdir("./file0", 0777 [pid 6093] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6102] <... mkdir resumed>) = 0 [pid 6093] <... futex resumed>) = 1 [pid 6091] <... futex resumed>) = 0 [pid 5078] umount2("./56", MNT_DETACH|UMOUNT_NOFOLLOW [ 135.968266][ T6102] loop3: detected capacity change from 0 to 8192 [ 135.993724][ T6100] loop1: detected capacity change from 0 to 8192 [pid 6102] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 6100] <... ioctl resumed>) = 0 [pid 6093] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6091] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6100] close(3 [pid 6093] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6091] <... futex resumed>) = 0 [pid 5078] openat(AT_FDCWD, "./56", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6100] <... close resumed>) = 0 [pid 6093] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 6091] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5078] <... openat resumed>) = 3 [pid 6100] mkdir("./file0", 0777 [pid 5078] fstat(3, [pid 6093] <... open resumed>) = 4 [ 136.020161][ T6096] REISERFS (device loop0): Using r5 hash to sort names [ 136.043770][ T6102] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 136.059220][ T6102] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [pid 6100] <... mkdir resumed>) = 0 [pid 6093] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6100] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 6096] <... mount resumed>) = 0 [pid 6093] <... futex resumed>) = 1 [pid 6091] <... futex resumed>) = 0 [pid 5078] getdents64(3, [pid 5076] <... umount2 resumed>) = 0 [pid 6093] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6091] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5076] umount2("./55/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6093] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6091] <... futex resumed>) = 0 [pid 5078] umount2("./56/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6093] ioctl(4, FS_IOC_GETVERSION [pid 6091] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] lstat("./55/file0", [pid 6093] <... ioctl resumed>, 0x20000080) = 0 [pid 5078] lstat("./56/binderfs", [pid 5076] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6093] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5078] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] umount2("./55/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6093] <... futex resumed>) = 1 [pid 6091] <... futex resumed>) = 0 [pid 5078] unlink("./56/binderfs" [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6093] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6091] exit_group(0 [pid 5078] <... unlink resumed>) = 0 [pid 5076] openat(AT_FDCWD, "./55/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6093] <... futex resumed>) = ? [pid 6091] <... exit_group resumed>) = ? [pid 5078] umount2("./56/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... openat resumed>) = 4 [pid 6093] +++ exited with 0 +++ [pid 6091] +++ exited with 0 +++ [pid 5076] fstat(4, [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6091, si_uid=0, si_status=0, si_utime=0, si_stime=23 /* 0.23 s */} --- [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5079] umount2("./55", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] getdents64(4, [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 6096] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5079] openat(AT_FDCWD, "./55", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] close(4 [pid 6096] <... openat resumed>) = 3 [pid 5079] <... openat resumed>) = 3 [pid 5076] <... close resumed>) = 0 [pid 6096] chdir("./file0" [pid 5079] fstat(3, [pid 5076] rmdir("./55/file0" [pid 6096] <... chdir resumed>) = 0 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] <... rmdir resumed>) = 0 [pid 6096] ioctl(4, LOOP_CLR_FD [pid 5079] getdents64(3, [pid 5076] getdents64(3, [pid 6096] <... ioctl resumed>) = 0 [pid 5079] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5076] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [ 136.064001][ T6096] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 136.070559][ T6102] REISERFS (device loop3): using ordered data mode [ 136.085076][ T6102] reiserfs: using flush barriers [ 136.091845][ T6102] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 136.109963][ T6102] REISERFS (device loop3): checking transaction log (loop3) [pid 6096] close(4 [pid 5079] umount2("./55/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] close(3 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... close resumed>) = 0 [pid 5076] rmdir("./55" [pid 5079] lstat("./55/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] <... rmdir resumed>) = 0 [pid 5079] unlink("./55/binderfs" [pid 5076] mkdir("./56", 0777 [pid 5079] <... unlink resumed>) = 0 [pid 5079] umount2("./55/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] <... mkdir resumed>) = 0 [pid 6096] <... close resumed>) = 0 [ 136.111152][ T6100] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 136.130513][ T6100] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 136.142572][ T6100] REISERFS (device loop1): using ordered data mode [ 136.150225][ T6100] reiserfs: using flush barriers [pid 5076] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 6096] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5076] <... openat resumed>) = 3 [pid 5076] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5076] close(3) = 0 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 6105 [pid 6096] <... futex resumed>) = 1 [pid 6096] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6095] <... futex resumed>) = 0 [pid 6095] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6095] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6096] <... futex resumed>) = 0 [pid 6096] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 4 ./strace-static-x86_64: Process 6105 attached [pid 6096] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6105] set_robust_list(0x5555571745e0, 24) = 0 [pid 6096] <... futex resumed>) = 1 [pid 6095] <... futex resumed>) = 0 [pid 6105] chdir("./56" [pid 6096] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6095] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6105] <... chdir resumed>) = 0 [pid 6096] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6095] <... futex resumed>) = 0 [pid 6105] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6095] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6105] <... prctl resumed>) = 0 [pid 6096] ioctl(4, FS_IOC_GETVERSION [pid 6105] setpgid(0, 0 [pid 6096] <... ioctl resumed>, 0x20000080) = 0 [pid 6105] <... setpgid resumed>) = 0 [pid 6096] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6105] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6096] <... futex resumed>) = 1 [pid 6095] <... futex resumed>) = 0 [pid 6105] <... openat resumed>) = 3 [pid 6095] exit_group(0 [pid 6105] write(3, "1000", 4 [pid 6095] <... exit_group resumed>) = ? [pid 6105] <... write resumed>) = 4 [pid 6105] close(3) = 0 [pid 6105] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6096] +++ exited with 0 +++ [pid 6095] +++ exited with 0 +++ [pid 6105] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6095, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=17 /* 0.17 s */} --- [pid 6105] <... futex resumed>) = 0 [pid 5074] restart_syscall(<... resuming interrupted clone ...> [pid 6105] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5074] <... restart_syscall resumed>) = 0 [pid 6105] <... mmap resumed>) = 0x7fdb72913000 [ 136.157849][ T6100] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 136.177491][ T6100] REISERFS (device loop1): checking transaction log (loop1) [pid 6105] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5074] umount2("./55", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6105] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] openat(AT_FDCWD, "./55", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6105] <... clone resumed>, parent_tid=[6106], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 6106 [pid 5074] <... openat resumed>) = 3 ./strace-static-x86_64: Process 6106 attached [pid 6105] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5074] fstat(3, [pid 6106] set_robust_list(0x7fdb729339e0, 24 [pid 6105] <... futex resumed>) = 0 [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6106] <... set_robust_list resumed>) = 0 [pid 6105] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5074] getdents64(3, [pid 6106] memfd_create("syzkaller", 0 [pid 5074] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 6106] <... memfd_create resumed>) = 3 [pid 5074] umount2("./55/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6106] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6106] <... mmap resumed>) = 0x7fdb6a513000 [pid 5074] lstat("./55/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5074] unlink("./55/binderfs") = 0 [pid 5074] umount2("./55/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5078] <... umount2 resumed>) = 0 [pid 5078] umount2("./56/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 136.282045][ T6100] REISERFS (device loop1): Using r5 hash to sort names [ 136.321366][ T6100] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [pid 5078] lstat("./56/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] umount2("./56/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5078] openat(AT_FDCWD, "./56/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5078] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5078] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5078] close(4) = 0 [pid 5078] rmdir("./56/file0") = 0 [pid 6100] <... mount resumed>) = 0 [pid 5078] getdents64(3, [pid 6100] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5079] <... umount2 resumed>) = 0 [pid 5078] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 6106] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 6100] <... openat resumed>) = 3 [pid 5079] umount2("./55/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5078] close(3 [pid 6100] chdir("./file0" [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5078] <... close resumed>) = 0 [pid 6100] <... chdir resumed>) = 0 [pid 5079] lstat("./55/file0", [pid 5078] rmdir("./56" [pid 6100] ioctl(4, LOOP_CLR_FD [pid 5079] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] <... rmdir resumed>) = 0 [pid 6100] <... ioctl resumed>) = 0 [pid 5079] umount2("./55/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5078] mkdir("./57", 0777 [pid 6100] close(4 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5078] <... mkdir resumed>) = 0 [pid 6100] <... close resumed>) = 0 [pid 5079] openat(AT_FDCWD, "./55/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5078] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6100] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] <... openat resumed>) = 4 [pid 5078] <... openat resumed>) = 3 [pid 6100] <... futex resumed>) = 1 [pid 6098] <... futex resumed>) = 0 [pid 5079] fstat(4, [pid 5078] ioctl(3, LOOP_CLR_FD [pid 6100] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6098] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 6100] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6098] <... futex resumed>) = 0 [pid 5079] getdents64(4, [pid 5078] close(3 [pid 6100] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 6098] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5079] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5078] <... close resumed>) = 0 [pid 6100] <... open resumed>) = 4 [pid 5079] getdents64(4, [pid 5078] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6100] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 6100] <... futex resumed>) = 1 [pid 6098] <... futex resumed>) = 0 [pid 5079] close(4 [pid 5078] <... clone resumed>, child_tidptr=0x5555571745d0) = 6107 [pid 6100] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6098] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] <... close resumed>) = 0 [pid 6100] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6098] <... futex resumed>) = 0 [pid 5079] rmdir("./55/file0" [pid 6100] ioctl(4, FS_IOC_GETVERSION [pid 6098] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5079] <... rmdir resumed>) = 0 [pid 6100] <... ioctl resumed>, 0x20000080) = 0 [pid 5079] getdents64(3, ./strace-static-x86_64: Process 6107 attached [pid 6100] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 6107] set_robust_list(0x5555571745e0, 24 [pid 6100] <... futex resumed>) = 1 [pid 6098] <... futex resumed>) = 0 [pid 5079] close(3 [pid 6107] <... set_robust_list resumed>) = 0 [pid 6100] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6098] exit_group(0 [pid 5079] <... close resumed>) = 0 [pid 6107] chdir("./57" [pid 6100] <... futex resumed>) = ? [pid 6098] <... exit_group resumed>) = ? [pid 5079] rmdir("./55" [pid 6107] <... chdir resumed>) = 0 [pid 6100] +++ exited with 0 +++ [pid 6107] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6098] +++ exited with 0 +++ [pid 6107] setpgid(0, 0 [pid 5079] <... rmdir resumed>) = 0 [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6098, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=18 /* 0.18 s */} --- [pid 6107] <... setpgid resumed>) = 0 [pid 5079] mkdir("./56", 0777 [pid 5074] <... umount2 resumed>) = 0 [pid 6107] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5079] <... mkdir resumed>) = 0 [pid 5074] umount2("./55/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6107] write(3, "1000", 4 [pid 5079] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6107] <... write resumed>) = 4 [pid 5079] <... openat resumed>) = 3 [pid 5074] lstat("./55/file0", [pid 6107] close(3 [pid 5079] ioctl(3, LOOP_CLR_FD [pid 5075] umount2("./55", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6107] <... close resumed>) = 0 [pid 6106] <... write resumed>) = 4194304 [pid 5079] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6107] symlink("/dev/binderfs", "./binderfs" [pid 6106] munmap(0x7fdb6a513000, 4194304 [pid 5079] close(3 [pid 5075] openat(AT_FDCWD, "./55", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5074] umount2("./55/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6107] <... symlink resumed>) = 0 [pid 6106] <... munmap resumed>) = 0 [pid 5079] <... close resumed>) = 0 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6106] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5074] openat(AT_FDCWD, "./55/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6106] <... openat resumed>) = 4 [pid 5074] <... openat resumed>) = 4 [pid 6106] ioctl(4, LOOP_SET_FD, 3 [pid 5079] <... clone resumed>, child_tidptr=0x5555571745d0) = 6108 [pid 5074] fstat(4, ./strace-static-x86_64: Process 6108 attached [pid 6107] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5075] <... openat resumed>) = 3 [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] getdents64(4, [pid 6107] <... futex resumed>) = 0 [pid 5075] fstat(3, [pid 5074] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 6108] set_robust_list(0x5555571745e0, 24 [pid 6107] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5075] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5074] close(4) = 0 [pid 5074] rmdir("./55/file0") = 0 [pid 5074] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5074] close(3) = 0 [pid 5074] rmdir("./55") = 0 [pid 5074] mkdir("./56", 0777) = 0 [pid 5074] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5074] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5074] close(3) = 0 [pid 6107] <... mmap resumed>) = 0x7fdb72913000 [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6108] <... set_robust_list resumed>) = 0 [pid 6107] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 6106] <... ioctl resumed>) = 0 [pid 6102] <... mount resumed>) = 0 [pid 5075] getdents64(3, [pid 5074] <... clone resumed>, child_tidptr=0x5555571745d0) = 6109 [pid 6108] chdir("./56" [pid 6107] <... mprotect resumed>) = 0 [pid 5075] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 6107] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5075] umount2("./55/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6108] <... chdir resumed>) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6108] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6107] <... clone resumed>, parent_tid=[6110], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 6110 [pid 6102] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6106] close(3 [pid 5075] lstat("./55/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 6108] <... prctl resumed>) = 0 [pid 6107] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6102] <... openat resumed>) = 3 [pid 5075] unlink("./55/binderfs"./strace-static-x86_64: Process 6110 attached [pid 6110] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 6108] setpgid(0, 0 [pid 6110] memfd_create("syzkaller", 0 [pid 6108] <... setpgid resumed>) = 0 [pid 5075] <... unlink resumed>) = 0 [pid 6110] <... memfd_create resumed>) = 3 [pid 6108] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6107] <... futex resumed>) = 0 [pid 6106] <... close resumed>) = 0 [pid 6102] chdir("./file0" [pid 5075] umount2("./55/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6110] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6108] <... openat resumed>) = 3 [pid 6107] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6102] <... chdir resumed>) = 0 [pid 6110] <... mmap resumed>) = 0x7fdb6a513000 [pid 6108] write(3, "1000", 4 [pid 6106] mkdir("./file0", 0777 [pid 6102] ioctl(4, LOOP_CLR_FD./strace-static-x86_64: Process 6109 attached [pid 6108] <... write resumed>) = 4 [pid 6106] <... mkdir resumed>) = 0 [pid 6102] <... ioctl resumed>) = 0 [pid 6109] set_robust_list(0x5555571745e0, 24 [pid 6108] close(3 [pid 6106] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 6102] close(4 [pid 6109] <... set_robust_list resumed>) = 0 [pid 6108] <... close resumed>) = 0 [pid 6102] <... close resumed>) = 0 [pid 6108] symlink("/dev/binderfs", "./binderfs" [pid 6102] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6108] <... symlink resumed>) = 0 [pid 6102] <... futex resumed>) = 1 [pid 6108] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6102] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6108] <... futex resumed>) = 0 [pid 6108] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 6108] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6108] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[6112], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 6112 [pid 6108] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6108] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6099] <... futex resumed>) = 0 [pid 6109] chdir("./56" [pid 6099] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6109] <... chdir resumed>) = 0 [pid 6102] <... futex resumed>) = 0 [ 136.488816][ T6102] REISERFS (device loop3): Using r5 hash to sort names [ 136.496976][ T6106] loop2: detected capacity change from 0 to 8192 [ 136.506769][ T6102] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [pid 6099] <... futex resumed>) = 1 [pid 6102] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6102] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6102] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6109] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6099] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6109] <... prctl resumed>) = 0 [pid 6099] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6109] setpgid(0, 0 [pid 6099] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6109] <... setpgid resumed>) = 0 [pid 6102] <... futex resumed>) = 0 [pid 6099] <... futex resumed>) = 1 [pid 6109] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6102] ioctl(4, FS_IOC_GETVERSION [pid 6099] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6109] <... openat resumed>) = 3 [pid 6102] <... ioctl resumed>, 0x20000080) = 0 [pid 6110] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 6109] write(3, "1000", 4 [pid 6102] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6109] <... write resumed>) = 4 [pid 6102] <... futex resumed>) = 1 [pid 6099] <... futex resumed>) = 0 [pid 6109] close(3 [pid 6102] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6099] exit_group(0 [pid 6109] <... close resumed>) = 0 [pid 6102] <... futex resumed>) = ? [pid 6099] <... exit_group resumed>) = ? [pid 6109] symlink("/dev/binderfs", "./binderfs" [pid 6102] +++ exited with 0 +++ ./strace-static-x86_64: Process 6112 attached [pid 6109] <... symlink resumed>) = 0 [pid 6099] +++ exited with 0 +++ [pid 6112] set_robust_list(0x7fdb729339e0, 24 [pid 6109] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6099, si_uid=0, si_status=0, si_utime=0, si_stime=22 /* 0.22 s */} --- [pid 6112] <... set_robust_list resumed>) = 0 [pid 6109] <... futex resumed>) = 0 [pid 6109] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 6112] memfd_create("syzkaller", 0 [pid 6109] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE [pid 6112] <... memfd_create resumed>) = 3 [pid 6109] <... mprotect resumed>) = 0 [pid 6112] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6109] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6112] <... mmap resumed>) = 0x7fdb6a513000 [pid 5077] umount2("./56", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6109] <... clone resumed>, parent_tid=[6113], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 6113 [pid 5077] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6109] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5077] openat(AT_FDCWD, "./56", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6109] <... futex resumed>) = 0 [pid 5077] <... openat resumed>) = 3 [pid 6109] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5077] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [ 136.565351][ T6106] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5077] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5077] umount2("./56/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] lstat("./56/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5077] unlink("./56/binderfs") = 0 [ 136.616006][ T6106] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [pid 5077] umount2("./56/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 6113 attached [pid 5075] <... umount2 resumed>) = 0 [pid 6113] set_robust_list(0x7fdb729339e0, 24 [pid 5075] umount2("./55/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6113] <... set_robust_list resumed>) = 0 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6113] memfd_create("syzkaller", 0 [pid 5075] lstat("./55/file0", [pid 6113] <... memfd_create resumed>) = 3 [pid 6112] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5075] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6113] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5075] umount2("./55/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6113] <... mmap resumed>) = 0x7fdb6a513000 [pid 5075] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5075] openat(AT_FDCWD, "./55/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5075] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5075] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5075] close(4) = 0 [pid 5075] rmdir("./55/file0") = 0 [pid 5075] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5075] close(3) = 0 [pid 5075] rmdir("./55") = 0 [pid 5075] mkdir("./56", 0777) = 0 [pid 5075] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5075] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5075] close(3) = 0 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 6114 [ 136.658657][ T6106] REISERFS (device loop2): using ordered data mode [ 136.665460][ T6106] reiserfs: using flush barriers [ 136.674843][ T6106] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 ./strace-static-x86_64: Process 6114 attached [pid 6110] <... write resumed>) = 4194304 [pid 6114] set_robust_list(0x5555571745e0, 24 [pid 6110] munmap(0x7fdb6a513000, 4194304 [pid 6114] <... set_robust_list resumed>) = 0 [pid 6110] <... munmap resumed>) = 0 [pid 6114] chdir("./56" [pid 6112] <... write resumed>) = 4194304 [pid 6110] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6114] <... chdir resumed>) = 0 [pid 6110] <... openat resumed>) = 4 [pid 6114] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6110] ioctl(4, LOOP_SET_FD, 3 [pid 6114] <... prctl resumed>) = 0 [pid 6114] setpgid(0, 0) = 0 [pid 6114] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6112] munmap(0x7fdb6a513000, 4194304 [pid 6114] <... openat resumed>) = 3 [pid 6114] write(3, "1000", 4) = 4 [pid 6114] close(3) = 0 [pid 6114] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6114] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6114] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 6114] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6114] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[6115], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 6115 [pid 6114] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6112] <... munmap resumed>) = 0 [pid 6114] <... futex resumed>) = 0 [pid 6114] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6112] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 6112] ioctl(4, LOOP_SET_FD, 3./strace-static-x86_64: Process 6115 attached [pid 6115] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 6115] memfd_create("syzkaller", 0 [pid 6110] <... ioctl resumed>) = 0 [pid 6115] <... memfd_create resumed>) = 3 [pid 6110] close(3 [pid 6115] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6113] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 6110] <... close resumed>) = 0 [pid 6115] <... mmap resumed>) = 0x7fdb6a513000 [pid 6112] <... ioctl resumed>) = 0 [pid 6110] mkdir("./file0", 0777 [pid 6112] close(3 [pid 6110] <... mkdir resumed>) = 0 [pid 6112] <... close resumed>) = 0 [pid 6110] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 6112] mkdir("./file0", 0777) = 0 [ 136.754671][ T6106] REISERFS (device loop2): checking transaction log (loop2) [ 136.766016][ T6110] loop4: detected capacity change from 0 to 8192 [ 136.784791][ T6112] loop5: detected capacity change from 0 to 8192 [pid 6112] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5077] <... umount2 resumed>) = 0 [pid 5077] umount2("./56/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] lstat("./56/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] umount2("./56/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5077] openat(AT_FDCWD, "./56/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5077] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5077] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5077] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5077] close(4) = 0 [pid 5077] rmdir("./56/file0") = 0 [pid 5077] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [ 136.824184][ T6110] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 136.839906][ T6110] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 136.852216][ T6112] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5077] close(3) = 0 [pid 5077] rmdir("./56") = 0 [pid 5077] mkdir("./57", 0777) = 0 [pid 5077] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5077] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5077] close(3) = 0 [pid 5077] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 6118 ./strace-static-x86_64: Process 6118 attached [pid 6118] set_robust_list(0x5555571745e0, 24) = 0 [ 136.883535][ T6110] REISERFS (device loop4): using ordered data mode [ 136.890838][ T6110] reiserfs: using flush barriers [ 136.897689][ T6110] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 136.915284][ T6110] REISERFS (device loop4): checking transaction log (loop4) [ 136.923585][ T6112] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [pid 6118] chdir("./57") = 0 [pid 6118] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6118] setpgid(0, 0) = 0 [pid 6118] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6118] write(3, "1000", 4) = 4 [pid 6118] close(3) = 0 [pid 6118] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6118] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6113] <... write resumed>) = 4194304 [pid 6118] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 6115] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 6113] munmap(0x7fdb6a513000, 4194304 [pid 6118] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6118] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[6119], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 6119 [pid 6118] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6118] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6113] <... munmap resumed>) = 0 ./strace-static-x86_64: Process 6119 attached [pid 6119] set_robust_list(0x7fdb729339e0, 24) = 0 [ 136.933230][ T6112] REISERFS (device loop5): using ordered data mode [ 136.955553][ T6112] reiserfs: using flush barriers [pid 6119] memfd_create("syzkaller", 0) = 3 [pid 6119] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [pid 6113] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6113] ioctl(4, LOOP_SET_FD, 3) = 0 [ 136.975786][ T6112] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 137.010748][ T6113] loop0: detected capacity change from 0 to 8192 [ 137.023800][ T6106] REISERFS (device loop2): Using r5 hash to sort names [pid 6113] close(3 [pid 6115] <... write resumed>) = 4194304 [pid 6113] <... close resumed>) = 0 [pid 6115] munmap(0x7fdb6a513000, 4194304 [pid 6113] mkdir("./file0", 0777 [pid 6115] <... munmap resumed>) = 0 [pid 6113] <... mkdir resumed>) = 0 [pid 6115] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 6113] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 6115] ioctl(4, LOOP_SET_FD, 3) = 0 [ 137.023996][ T6112] REISERFS (device loop5): checking transaction log (loop5) [ 137.030924][ T6106] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 137.070814][ T6115] loop1: detected capacity change from 0 to 8192 [pid 6115] close(3 [pid 6119] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 6115] <... close resumed>) = 0 [pid 6115] mkdir("./file0", 0777) = 0 [ 137.082736][ T6113] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 137.113861][ T6113] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [pid 6115] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 6106] <... mount resumed>) = 0 [pid 6106] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 6106] chdir("./file0") = 0 [pid 6106] ioctl(4, LOOP_CLR_FD) = 0 [pid 6106] close(4) = 0 [pid 6106] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6105] <... futex resumed>) = 0 [pid 6106] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 6105] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6106] <... open resumed>) = 4 [pid 6105] <... futex resumed>) = 0 [pid 6106] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6105] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6106] <... futex resumed>) = 0 [pid 6105] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6106] ioctl(4, FS_IOC_GETVERSION [pid 6105] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6106] <... ioctl resumed>, 0x20000080) = 0 [pid 6105] <... futex resumed>) = 0 [pid 6106] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6105] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6106] <... futex resumed>) = 0 [pid 6105] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6106] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6105] exit_group(0 [pid 6106] <... futex resumed>) = ? [pid 6105] <... exit_group resumed>) = ? [pid 6106] +++ exited with 0 +++ [pid 6105] +++ exited with 0 +++ [pid 5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6105, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=18 /* 0.18 s */} --- [ 137.128717][ T6113] REISERFS (device loop0): using ordered data mode [ 137.137097][ T6115] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 137.165754][ T6113] reiserfs: using flush barriers [ 137.172596][ T6115] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [pid 5076] umount2("./56", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5076] openat(AT_FDCWD, "./56", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5076] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5076] umount2("./56/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5076] lstat("./56/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5076] unlink("./56/binderfs") = 0 [pid 5076] umount2("./56/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6110] <... mount resumed>) = 0 [pid 6110] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 6110] chdir("./file0") = 0 [pid 6110] ioctl(4, LOOP_CLR_FD) = 0 [pid 6110] close(4) = 0 [pid 6110] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6107] <... futex resumed>) = 0 [pid 6107] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6107] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6110] <... futex resumed>) = 1 [pid 6110] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 6110] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6107] <... futex resumed>) = 0 [pid 6107] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6107] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6110] <... futex resumed>) = 1 [pid 6110] ioctl(4, FS_IOC_GETVERSION, 0x20000080) = 0 [pid 6110] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6107] <... futex resumed>) = 0 [pid 6107] exit_group(0) = ? [pid 6110] <... futex resumed>) = ? [pid 6110] +++ exited with 0 +++ [pid 6107] +++ exited with 0 +++ [pid 5078] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6107, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=12 /* 0.12 s */} --- [pid 5078] umount2("./57", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5078] openat(AT_FDCWD, "./57", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5078] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5078] umount2("./57/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5078] lstat("./57/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5078] unlink("./57/binderfs") = 0 [pid 5078] umount2("./57/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6119] <... write resumed>) = 4194304 [pid 6119] munmap(0x7fdb6a513000, 4194304) = 0 [pid 6119] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [ 137.186699][ T6110] REISERFS (device loop4): Using r5 hash to sort names [ 137.201022][ T6110] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 137.209952][ T6113] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 6119] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6119] close(3) = 0 [pid 6119] mkdir("./file0", 0777) = 0 [ 137.249892][ T6119] loop3: detected capacity change from 0 to 8192 [ 137.273873][ T6115] REISERFS (device loop1): using ordered data mode [ 137.281630][ T6119] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 137.285065][ T6115] reiserfs: using flush barriers [ 137.294821][ T6119] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 137.310645][ T6119] REISERFS (device loop3): using ordered data mode [ 137.317405][ T6119] reiserfs: using flush barriers [ 137.324064][ T6113] REISERFS (device loop0): checking transaction log (loop0) [ 137.331412][ T6119] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 137.359855][ T6115] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 137.378177][ T6112] REISERFS (device loop5): Using r5 hash to sort names [pid 6119] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5076] <... umount2 resumed>) = 0 [pid 6112] <... mount resumed>) = 0 [pid 6112] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 6112] chdir("./file0") = 0 [pid 6112] ioctl(4, LOOP_CLR_FD) = 0 [ 137.402180][ T6112] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 137.427276][ T6119] REISERFS (device loop3): checking transaction log (loop3) [pid 6112] close(4) = 0 [pid 6112] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6112] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6108] <... futex resumed>) = 0 [pid 6108] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5076] umount2("./56/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6112] <... futex resumed>) = 0 [pid 6108] <... futex resumed>) = 1 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6112] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 6108] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5076] lstat("./56/file0", [pid 6112] <... open resumed>) = 4 [pid 5078] <... umount2 resumed>) = 0 [pid 6112] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5076] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6112] <... futex resumed>) = 1 [pid 6108] <... futex resumed>) = 0 [pid 6112] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6108] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5076] umount2("./56/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6112] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6112] ioctl(4, FS_IOC_GETVERSION, 0x20000080) = 0 [pid 6112] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6108] <... futex resumed>) = 0 [pid 5076] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6112] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6108] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5078] umount2("./57/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5076] openat(AT_FDCWD, "./56/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6108] exit_group(0 [pid 5078] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5076] <... openat resumed>) = 4 [pid 6112] <... futex resumed>) = ? [ 137.449992][ T6115] REISERFS (device loop1): checking transaction log (loop1) [pid 6108] <... exit_group resumed>) = ? [pid 5078] lstat("./57/file0", [pid 5076] fstat(4, [pid 6112] +++ exited with 0 +++ [pid 5078] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] umount2("./57/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 6108] +++ exited with 0 +++ [pid 5078] openat(AT_FDCWD, "./57/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5076] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6108, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 5078] <... openat resumed>) = 4 [pid 5076] getdents64(4, [pid 5079] restart_syscall(<... resuming interrupted clone ...> [pid 5078] fstat(4, [pid 5076] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5079] <... restart_syscall resumed>) = 0 [pid 5078] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5076] getdents64(4, [pid 5078] getdents64(4, [pid 5076] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5078] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5079] umount2("./56", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5078] getdents64(4, [pid 5076] close(4 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5078] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5076] <... close resumed>) = 0 [pid 5079] openat(AT_FDCWD, "./56", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5078] close(4 [pid 5076] rmdir("./56/file0" [pid 5079] <... openat resumed>) = 3 [pid 5078] <... close resumed>) = 0 [pid 5079] fstat(3, [pid 5078] rmdir("./57/file0" [pid 5076] <... rmdir resumed>) = 0 [pid 5079] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5078] <... rmdir resumed>) = 0 [pid 5076] getdents64(3, [pid 5079] getdents64(3, [pid 5078] getdents64(3, [pid 5076] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5079] <... getdents64 resumed>0x555557175620 /* 4 entries */, 32768) = 112 [pid 5078] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 5076] close(3 [pid 5079] umount2("./56/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5078] close(3 [pid 5076] <... close resumed>) = 0 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5078] <... close resumed>) = 0 [pid 5076] rmdir("./56" [pid 5079] lstat("./56/binderfs", [pid 5078] rmdir("./57" [pid 5079] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5078] <... rmdir resumed>) = 0 [pid 5076] <... rmdir resumed>) = 0 [pid 5079] unlink("./56/binderfs" [pid 5078] mkdir("./58", 0777 [pid 5076] mkdir("./57", 0777 [pid 5079] <... unlink resumed>) = 0 [pid 5078] <... mkdir resumed>) = 0 [pid 5079] umount2("./56/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5078] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5076] <... mkdir resumed>) = 0 [pid 5078] <... openat resumed>) = 3 [pid 5078] ioctl(3, LOOP_CLR_FD [pid 5076] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5078] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5078] close(3) = 0 [pid 5076] <... openat resumed>) = 3 [pid 5078] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5076] ioctl(3, LOOP_CLR_FD [pid 5078] <... clone resumed>, child_tidptr=0x5555571745d0) = 6123 [pid 5076] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5076] close(3) = 0 [pid 5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 6124 ./strace-static-x86_64: Process 6123 attached [pid 6123] set_robust_list(0x5555571745e0, 24) = 0 [pid 6123] chdir("./58") = 0 [pid 6123] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6123] setpgid(0, 0) = 0 ./strace-static-x86_64: Process 6124 attached [pid 6123] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6123] write(3, "1000", 4 [pid 6124] set_robust_list(0x5555571745e0, 24 [pid 6123] <... write resumed>) = 4 [pid 6124] <... set_robust_list resumed>) = 0 [pid 6123] close(3 [pid 6124] chdir("./57" [pid 6123] <... close resumed>) = 0 [pid 6123] symlink("/dev/binderfs", "./binderfs" [pid 6124] <... chdir resumed>) = 0 [pid 6123] <... symlink resumed>) = 0 [pid 6124] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6123] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6124] <... prctl resumed>) = 0 [pid 6123] <... futex resumed>) = 0 [pid 6124] setpgid(0, 0 [pid 6123] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6124] <... setpgid resumed>) = 0 [pid 6123] <... mmap resumed>) = 0x7fdb72913000 [pid 6123] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6123] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6124] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6123] <... clone resumed>, parent_tid=[6125], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 6125 [pid 6123] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6124] <... openat resumed>) = 3 [pid 6123] <... futex resumed>) = 0 [pid 6124] write(3, "1000", 4) = 4 [pid 6123] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6124] close(3) = 0 [pid 6124] symlink("/dev/binderfs", "./binderfs"./strace-static-x86_64: Process 6125 attached [pid 6125] set_robust_list(0x7fdb729339e0, 24 [pid 6124] <... symlink resumed>) = 0 [pid 6125] <... set_robust_list resumed>) = 0 [pid 6124] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6125] memfd_create("syzkaller", 0 [pid 6124] <... futex resumed>) = 0 [pid 6125] <... memfd_create resumed>) = 3 [pid 6124] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6125] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6124] <... mmap resumed>) = 0x7fdb72913000 [pid 6125] <... mmap resumed>) = 0x7fdb6a513000 [pid 6124] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6124] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[6126], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 6126 [pid 6124] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6124] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 6126 attached [pid 6126] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 6126] memfd_create("syzkaller", 0) = 3 [pid 6126] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [ 137.637228][ T6113] REISERFS (device loop0): Using r5 hash to sort names [pid 5079] <... umount2 resumed>) = 0 [pid 5079] umount2("./56/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6125] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5079] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5079] lstat("./56/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5079] umount2("./56/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5079] openat(AT_FDCWD, "./56/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5079] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6113] <... mount resumed>) = 0 [pid 5079] getdents64(4, [pid 6113] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5079] <... getdents64 resumed>0x55555717d660 /* 2 entries */, 32768) = 48 [pid 6113] <... openat resumed>) = 3 [pid 5079] getdents64(4, [pid 6113] chdir("./file0" [pid 5079] <... getdents64 resumed>0x55555717d660 /* 0 entries */, 32768) = 0 [pid 6113] <... chdir resumed>) = 0 [pid 5079] close(4 [pid 6113] ioctl(4, LOOP_CLR_FD [pid 5079] <... close resumed>) = 0 [pid 6113] <... ioctl resumed>) = 0 [pid 5079] rmdir("./56/file0" [ 137.678279][ T6113] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 6113] close(4 [pid 5079] <... rmdir resumed>) = 0 [pid 6113] <... close resumed>) = 0 [pid 5079] getdents64(3, [pid 6113] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] <... getdents64 resumed>0x555557175620 /* 0 entries */, 32768) = 0 [pid 6113] <... futex resumed>) = 1 [pid 6109] <... futex resumed>) = 0 [pid 5079] close(3 [pid 6113] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6109] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] <... close resumed>) = 0 [pid 6113] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6109] <... futex resumed>) = 0 [pid 5079] rmdir("./56" [pid 6113] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 6109] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5079] <... rmdir resumed>) = 0 [pid 6113] <... open resumed>) = 4 [pid 5079] mkdir("./57", 0777 [pid 6113] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] <... mkdir resumed>) = 0 [pid 6113] <... futex resumed>) = 1 [pid 6109] <... futex resumed>) = 0 [pid 5079] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 6113] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6109] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] <... openat resumed>) = 3 [pid 6113] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6109] <... futex resumed>) = 0 [pid 5079] ioctl(3, LOOP_CLR_FD [pid 6113] ioctl(4, FS_IOC_GETVERSION [pid 6109] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5079] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 6113] <... ioctl resumed>, 0x20000080) = 0 [pid 5079] close(3 [pid 6126] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 6113] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] <... close resumed>) = 0 [pid 6113] <... futex resumed>) = 1 [pid 6109] <... futex resumed>) = 0 [pid 5079] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6113] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6109] exit_group(0 [pid 6113] <... futex resumed>) = ? [pid 6109] <... exit_group resumed>) = ? [pid 5079] <... clone resumed>, child_tidptr=0x5555571745d0) = 6127 [pid 6113] +++ exited with 0 +++ [pid 6109] +++ exited with 0 +++ [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6109, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 5074] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5074] umount2("./56", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] openat(AT_FDCWD, "./56", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5074] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] getdents64(3, ./strace-static-x86_64: Process 6127 attached 0x555557175620 /* 4 entries */, 32768) = 112 [pid 6127] set_robust_list(0x5555571745e0, 24 [pid 5074] umount2("./56/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6127] <... set_robust_list resumed>) = 0 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6127] chdir("./57" [pid 5074] lstat("./56/binderfs", [pid 6127] <... chdir resumed>) = 0 [pid 5074] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 6127] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5074] unlink("./56/binderfs" [pid 6127] <... prctl resumed>) = 0 [pid 5074] <... unlink resumed>) = 0 [pid 6127] setpgid(0, 0 [pid 5074] umount2("./56/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6127] <... setpgid resumed>) = 0 [pid 6127] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6127] write(3, "1000", 4) = 4 [pid 6127] close(3) = 0 [pid 6127] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6127] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6127] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 6127] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6127] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[6128], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 6128 [pid 6127] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 137.785327][ T6119] REISERFS (device loop3): Using r5 hash to sort names [ 137.811962][ T6119] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 137.824127][ T6115] REISERFS (device loop1): Using r5 hash to sort names [pid 6127] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 6128 attached [pid 6128] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 6128] memfd_create("syzkaller", 0 [pid 6125] <... write resumed>) = 4194304 [pid 6119] <... mount resumed>) = 0 [pid 6115] <... mount resumed>) = 0 [pid 6128] <... memfd_create resumed>) = 3 [pid 6125] munmap(0x7fdb6a513000, 4194304 [pid 6119] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6115] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6128] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6125] <... munmap resumed>) = 0 [pid 6119] <... openat resumed>) = 3 [pid 6115] <... openat resumed>) = 3 [pid 6128] <... mmap resumed>) = 0x7fdb6a513000 [pid 6125] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6119] chdir("./file0" [pid 6115] chdir("./file0" [pid 6125] <... openat resumed>) = 4 [pid 6119] <... chdir resumed>) = 0 [pid 6115] <... chdir resumed>) = 0 [ 137.831713][ T6115] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [pid 6125] ioctl(4, LOOP_SET_FD, 3 [pid 6119] ioctl(4, LOOP_CLR_FD [pid 6115] ioctl(4, LOOP_CLR_FD [pid 6119] <... ioctl resumed>) = 0 [pid 6115] <... ioctl resumed>) = 0 [pid 6119] close(4 [pid 6115] close(4 [pid 6119] <... close resumed>) = 0 [pid 6115] <... close resumed>) = 0 [pid 6119] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6115] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6119] <... futex resumed>) = 1 [pid 6118] <... futex resumed>) = 0 [pid 6115] <... futex resumed>) = 1 [pid 6114] <... futex resumed>) = 0 [pid 6119] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6118] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6115] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6114] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6119] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6118] <... futex resumed>) = 0 [pid 6115] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6114] <... futex resumed>) = 0 [pid 6119] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 6118] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6115] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [ 137.887460][ T6125] loop4: detected capacity change from 0 to 8192 [ 137.903937][ T6119] ------------[ cut here ]------------ [ 137.913585][ T6119] kernel BUG at fs/reiserfs/journal.c:3039! [ 137.922529][ T6119] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 137.928646][ T6119] CPU: 0 PID: 6119 Comm: syz-executor864 Not tainted 6.2.0-rc7-syzkaller #0 [pid 6114] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6115] <... open resumed>) = 4 [pid 6115] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6128] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 6126] <... write resumed>) = 4194304 [pid 6125] <... ioctl resumed>) = 0 [pid 6115] <... futex resumed>) = 1 [pid 6114] <... futex resumed>) = 0 [pid 5074] <... umount2 resumed>) = 0 [pid 6126] munmap(0x7fdb6a513000, 4194304 [pid 6125] close(3 [pid 5074] umount2("./56/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6126] <... munmap resumed>) = 0 [pid 6125] <... close resumed>) = 0 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6126] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 6125] mkdir("./file0", 0777 [pid 5074] lstat("./56/file0", [pid 6126] <... openat resumed>) = 4 [pid 6125] <... mkdir resumed>) = 0 [pid 5074] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6126] ioctl(4, LOOP_SET_FD, 3 [pid 6125] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5074] umount2("./56/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6126] <... ioctl resumed>) = 0 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6126] close(3 [pid 5074] openat(AT_FDCWD, "./56/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6126] <... close resumed>) = 0 [pid 5074] <... openat resumed>) = 4 [pid 6126] mkdir("./file0", 0777 [pid 5074] fstat(4, [pid 6126] <... mkdir resumed>) = 0 [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6126] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC, "" [pid 5074] getdents64(4, 0x55555717d660 /* 2 entries */, 32768) = 48 [pid 5074] getdents64(4, 0x55555717d660 /* 0 entries */, 32768) = 0 [pid 5074] close(4) = 0 [ 137.937339][ T6119] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023 [ 137.947776][ T6119] RIP: 0010:do_journal_begin_r+0x1005/0x1010 [ 137.953802][ T6119] Code: ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 22 ff ff ff 48 89 df e8 6c 2b b3 ff e9 15 ff ff ff e8 82 d8 5e ff 0f 0b e8 7b d8 5e ff <0f> 0b e8 14 90 6a 08 0f 1f 40 00 66 0f 1f 00 55 41 57 41 56 41 55 [ 137.969076][ T6126] loop2: detected capacity change from 0 to 8192 [ 137.973580][ T6119] RSP: 0018:ffffc900063bf5c0 EFLAGS: 00010293 [pid 5074] rmdir("./56/file0") = 0 [pid 5074] getdents64(3, 0x555557175620 /* 0 entries */, 32768) = 0 [pid 5074] close(3) = 0 [pid 5074] rmdir("./56") = 0 [pid 5074] mkdir("./57", 0777) = 0 [pid 5074] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5074] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5074] close(3) = 0 [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571745d0) = 6131 [pid 6128] <... write resumed>) = 4194304 [pid 6128] munmap(0x7fdb6a513000, 4194304) = 0 [pid 6128] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [ 137.973599][ T6119] RAX: ffffffff822b5e95 RBX: 000000001100e135 RCX: ffff88801f6e1d40 [ 137.973610][ T6119] RDX: 0000000000000000 RSI: 000000001100e135 RDI: 0000000000000100 [ 137.973619][ T6119] RBP: ffffc900063bf768 R08: ffffffff822b4fc7 R09: fffffbfff1cadb16 [ 137.973629][ T6119] R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88801c210678 [ 137.973638][ T6119] R13: ffffc90006433214 R14: dffffc0000000000 R15: 0000000000000100 [ 137.973648][ T6119] FS: 00007fdb72933700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 137.973661][ T6119] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 137.973670][ T6119] CR2: 00007fdb6a763000 CR3: 0000000020efd000 CR4: 00000000003506f0 [ 138.049815][ T6119] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 138.057892][ T6119] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 138.065854][ T6119] Call Trace: [ 138.069124][ T6119] [ 138.072059][ T6119] ? __mutex_lock_common+0x454/0x2630 [ 138.077438][ T6119] ? reiserfs_write_lock+0x7a/0xd0 [ 138.082559][ T6119] ? __lock_acquire+0x1f80/0x1f80 [ 138.087578][ T6119] ? journal_join_abort+0xe0/0xe0 [ 138.092606][ T6119] ? bpf_lsm_inode_init_security+0x9/0x10 [ 138.098346][ T6119] ? security_old_inode_init_security+0x10a/0x150 [ 138.104948][ T6119] journal_begin+0x14c/0x360 [ 138.109564][ T6119] reiserfs_create+0x2d2/0x660 [ 138.114345][ T6119] ? apparmor_capable+0x132/0x190 [ 138.119390][ T6119] ? reiserfs_lookup+0x490/0x490 [ 138.124328][ T6119] ? inode_permission+0xfb/0x460 [ 138.129258][ T6119] ? open_xa_dir+0x650/0x650 [ 138.133930][ T6119] ? bpf_lsm_inode_create+0x9/0x10 [ 138.139114][ T6119] ? security_inode_create+0xb8/0x100 [ 138.144491][ T6119] ? reiserfs_lookup+0x490/0x490 [ 138.149509][ T6119] path_openat+0x12b9/0x2e30 [ 138.154107][ T6119] ? do_filp_open+0x500/0x500 [ 138.158778][ T6119] ? verify_cpu+0xc0/0x100 [ 138.163186][ T6119] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 138.169382][ T6119] do_filp_open+0x26d/0x500 [ 138.173901][ T6119] ? vfs_tmpfile+0x4a0/0x4a0 [ 138.178576][ T6119] ? do_raw_spin_unlock+0x13b/0x8b0 [ 138.183855][ T6119] ? _raw_spin_unlock+0x28/0x40 [ 138.188786][ T6119] ? alloc_fd+0x586/0x620 [ 138.193107][ T6119] do_sys_openat2+0x128/0x4f0 [ 138.197774][ T6119] ? print_irqtrace_events+0x220/0x220 [ 138.203483][ T6119] ? ptrace_stop+0x75a/0x970 [ 138.208321][ T6119] ? do_sys_open+0x230/0x230 [ 138.212933][ T6119] ? lockdep_hardirqs_on+0x90/0x130 [ 138.218120][ T6119] ? _raw_spin_unlock_irq+0x2e/0x50 [ 138.223307][ T6119] ? ptrace_notify+0x24d/0x350 [ 138.228080][ T6119] __x64_sys_open+0x225/0x270 [ 138.232746][ T6119] ? do_sys_openat2+0x4f0/0x4f0 [ 138.237595][ T6119] ? syscall_enter_from_user_mode+0x32/0x2c0 [ 138.243563][ T6119] ? syscall_enter_from_user_mode+0x8c/0x2c0 [ 138.249533][ T6119] do_syscall_64+0x41/0xc0 [ 138.254118][ T6119] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 138.260294][ T6119] RIP: 0033:0x7fdb72987bb9 [ 138.264786][ T6119] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 138.284411][ T6119] RSP: 002b:00007fdb729332f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 [ 138.292815][ T6119] RAX: ffffffffffffffda RBX: 00007fdb72a0d7a0 RCX: 00007fdb72987bb9 [ 138.300788][ T6119] RDX: 0000000000000000 RSI: 0000000000143042 RDI: 0000000020002000 [ 138.308835][ T6119] RBP: 00007fdb729d90c0 R08: 0000000000000000 R09: 0000000000000000 [ 138.316884][ T6119] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000200022c0 [ 138.325126][ T6119] R13: 0030656c69662f2e R14: 7366726573696572 R15: 00007fdb72a0d7a8 [ 138.333092][ T6119] [pid 6128] ioctl(4, LOOP_SET_FD, 3 [pid 6118] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6114] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6118] futex(0x7fdb72a0d7bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6118] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb6a8f2000 [pid 6118] mprotect(0x7fdb6a8f3000, 131072, PROT_READ|PROT_WRITE [pid 6114] <... futex resumed>) = 0 [pid 6118] <... mprotect resumed>) = 0 [pid 6118] clone(child_stack=0x7fdb6a9123f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6115] ioctl(4, FS_IOC_GETVERSION [pid 6114] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6115] <... ioctl resumed>, 0x20000080) = 0 [pid 6118] <... clone resumed>, parent_tid=[6132], tls=0x7fdb6a912700, child_tidptr=0x7fdb6a9129d0) = 6132 [pid 6115] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6118] futex(0x7fdb72a0d7b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6118] futex(0x7fdb72a0d7bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 6132 attached [pid 6132] set_robust_list(0x7fdb6a9129e0, 24) = 0 [pid 6132] ioctl(-1, FS_IOC_GETVERSION, 0x20000080) = -1 EBADF (Bad file descriptor) [pid 6132] futex(0x7fdb72a0d7bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6118] <... futex resumed>) = 0 [pid 6132] <... futex resumed>) = 1 [pid 6132] futex(0x7fdb72a0d7b8, FUTEX_WAIT_PRIVATE, 0, NULL./strace-static-x86_64: Process 6131 attached [pid 6131] set_robust_list(0x5555571745e0, 24) = 0 [pid 6131] chdir("./57") = 0 [pid 6131] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6115] <... futex resumed>) = 1 [pid 6114] <... futex resumed>) = 0 [pid 6115] futex(0x7fdb72a0d7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6114] exit_group(0 [pid 6131] setpgid(0, 0) = 0 [pid 6131] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6131] write(3, "1000", 4) = 4 [pid 6131] close(3) = 0 [pid 6131] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6131] futex(0x7fdb72a0d7ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6131] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fdb72913000 [pid 6131] mprotect(0x7fdb72914000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6131] clone(child_stack=0x7fdb729333f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[6133], tls=0x7fdb72933700, child_tidptr=0x7fdb729339d0) = 6133 [pid 6131] futex(0x7fdb72a0d7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6131] futex(0x7fdb72a0d7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6114] <... exit_group resumed>) = ? [pid 6115] <... futex resumed>) = ? [ 138.336097][ T6119] Modules linked in: [ 138.348617][ T6125] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 138.352048][ T6119] ---[ end trace 0000000000000000 ]--- [ 138.361735][ T6126] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 138.367531][ T6119] RIP: 0010:do_journal_begin_r+0x1005/0x1010 [pid 6115] +++ exited with 0 +++ [pid 6114] +++ exited with 0 +++ [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6114, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=15 /* 0.15 s */} --- [pid 5075] umount2("./56", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5075] openat(AT_FDCWD, "./56", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5075] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5075] getdents64(3, 0x555557175620 /* 4 entries */, 32768) = 112 [pid 5075] umount2("./56/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5075] lstat("./56/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5075] unlink("./56/binderfs") = 0 [pid 5075] umount2("./56/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 6133 attached [pid 6133] set_robust_list(0x7fdb729339e0, 24) = 0 [pid 6133] memfd_create("syzkaller", 0) = 3 [pid 6133] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb6a513000 [ 138.387768][ T6119] Code: ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 22 ff ff ff 48 89 df e8 6c 2b b3 ff e9 15 ff ff ff e8 82 d8 5e ff 0f 0b e8 7b d8 5e ff <0f> 0b e8 14 90 6a 08 0f 1f 40 00 66 0f 1f 00 55 41 57 41 56 41 55 [ 138.388750][ T6128] loop5: detected capacity change from 0 to 8192 [ 138.407504][ T6119] RSP: 0018:ffffc900063bf5c0 EFLAGS: 00010293 [ 138.407528][ T6119] RAX: ffffffff822b5e95 RBX: 000000001100e135 RCX: ffff88801f6e1d40 [ 138.407542][ T6119] RDX: 0000000000000000 RSI: 000000001100e135 RDI: 0000000000000100 [ 138.407551][ T6119] RBP: ffffc900063bf768 R08: ffffffff822b4fc7 R09: fffffbfff1cadb16 [ 138.407563][ T6119] R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88801c210678 [ 138.407574][ T6119] R13: ffffc90006433214 R14: dffffc0000000000 R15: 0000000000000100 [ 138.407585][ T6119] FS: 00007fdb72933700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 138.407598][ T6119] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 138.449335][ T6125] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [pid 6128] <... ioctl resumed>) = 0 [ 138.452321][ T6119] CR2: 00007ffd98f879c0 CR3: 0000000020efd000 CR4: 00000000003506f0 [ 138.452340][ T6119] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 138.452350][ T6119] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 138.510243][ T6126] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 138.519867][ T6126] REISERFS (device loop2): using ordered data mode [ 138.525737][ T6125] REISERFS (device loop4): using ordered data mode [ 138.526429][ T6126] reiserfs: using flush barriers [ 138.537905][ T6119] Kernel panic - not syncing: Fatal exception [ 138.544274][ T6119] Kernel Offset: disabled [ 138.548592][ T6119] Rebooting in 86400 seconds..