ci-upstream-linux-next-kasan-gce-root/strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ci-upstream-linux-next-kasan-gce-root/syz-executor452289743 <...> Warning: Permanently added '10.128.0.128' (ED25519) to the list of known hosts. execve("ci-upstream-linux-next-kasan-gce-root/syz-executor452289743", ["ci-upstream-linux-next-kasan-gce-root/syz-executor452289743"], 0x7ffc0ce4dd60 /* 10 vars */) = 0 brk(NULL) = 0x55556a0c1000 brk(0x55556a0c1d80) = 0x55556a0c1d80 arch_prctl(ARCH_SET_FS, 0x55556a0c1400) = 0 set_tid_address(0x55556a0c16d0) = 5617 set_robust_list(0x55556a0c16e0, 24) = 0 rseq({cpu_id_start=0, cpu_id=RSEQ_CPU_ID_UNINITIALIZED, rseq_cs=NULL, flags=0, node_id=0, mm_cid=0, slice_ctrl={request=0, granted=0, __reserved=0}, __reserved=0}, 33, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlinkat(AT_FDCWD, "/proc/self/exe", "/root/ci-upstream-linux-next-kasan-gce-root/syz-executor452289743", 4096) = 65 getrandom("\xe2\x6a\xc2\xa5\x4a\x5a\x99\x0c", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55556a0c1d80 brk(0x55556a0e2d80) = 0x55556a0e2d80 brk(0x55556a0e3000) = 0x55556a0e3000 mprotect(0x7fc51c9e0000, 20480, PROT_READ) = 0 mmap(0x1ffffffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffffffff000 mmap(0x200000000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200000000000 mmap(0x200001000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200001000000 mkdir("/syzcgroup", 0777) = 0 mkdir("/syzcgroup/unified", 0777) = 0 mount("none", "/syzcgroup/unified", "cgroup2", 0, NULL) = 0 chmod("/syzcgroup/unified", 0777) = 0 openat(AT_FDCWD, "/syzcgroup/unified/cgroup.subtree_control", O_WRONLY) = 3 write(3, "+cpu", 4) = 4 write(3, "+io", 3) = 3 write(3, "+pids", 5) = 5 close(3) = 0 mkdir("/syzcgroup/net", 0777) = 0 mount("none", "/syzcgroup/net", "cgroup", 0, "net") = -1 EINVAL (Invalid argument) mount("none", "/syzcgroup/net", "cgroup", 0, "net_prio") = 0 umount2("/syzcgroup/net", 0) = 0 mount("none", "/syzcgroup/net", "cgroup", 0, "devices") = 0 umount2("/syzcgroup/net", 0) = 0 mount("none", "/syzcgroup/net", "cgroup", 0, "blkio") = 0 umount2("/syzcgroup/net", 0) = 0 mount("none", "/syzcgroup/net", "cgroup", 0, "freezer") = 0 umount2("/syzcgroup/net", 0) = 0 mount("none", "/syzcgroup/net", "cgroup", 0, "net_prio,devices,blkio,freezer") = ? ERESTARTNOINTR (To be restarted) [ 73.084141][ T5617] cgroup: Unknown subsys name 'net' mount("none", "/syzcgroup/net", "cgroup", 0, "net_prio,devices,blkio,freezer") = ? ERESTARTNOINTR (To be restarted) mount("none", "/syzcgroup/net", "cgroup", 0, "net_prio,devices,blkio,freezer") = ? ERESTARTNOINTR (To be restarted) mount("none", "/syzcgroup/net", "cgroup", 0, "net_prio,devices,blkio,freezer") = ? ERESTARTNOINTR (To be restarted) mount("none", "/syzcgroup/net", "cgroup", 0, "net_prio,devices,blkio,freezer") = 0 chmod("/syzcgroup/net", 0777) = 0 mkdir("/syzcgroup/cpu", 0777) = 0 mount("none", "/syzcgroup/cpu", "cgroup", 0, "cpuset") = -1 EINVAL (Invalid argument) mount("none", "/syzcgroup/cpu", "cgroup", 0, "cpuacct") = 0 umount2("/syzcgroup/cpu", 0) = 0 mount("none", "/syzcgroup/cpu", "cgroup", 0, "hugetlb") = 0 umount2("/syzcgroup/cpu", 0) = 0 mount("none", "/syzcgroup/cpu", "cgroup", 0, "rlimit") = -1 EINVAL (Invalid argument) mount("none", "/syzcgroup/cpu", "cgroup", 0, "memory") = 0 umount2("/syzcgroup/cpu", 0) = 0 mount("none", "/syzcgroup/cpu", "cgroup", 0, "cpuacct,hugetlb,memory") = ? ERESTARTNOINTR (To be restarted) mount("none", "/syzcgroup/cpu", "cgroup", 0, "cpuacct,hugetlb,memory") = ? ERESTARTNOINTR (To be restarted) [ 73.199088][ T5617] cgroup: Unknown subsys name 'cpuset' [ 73.210816][ T5617] cgroup: Unknown subsys name 'rlimit' mount("none", "/syzcgroup/cpu", "cgroup", 0, "cpuacct,hugetlb,memory") = ? ERESTARTNOINTR (To be restarted) mount("none", "/syzcgroup/cpu", "cgroup", 0, "cpuacct,hugetlb,memory") = ? ERESTARTNOINTR (To be restarted) mount("none", "/syzcgroup/cpu", "cgroup", 0, "cpuacct,hugetlb,memory") = 0 chmod("/syzcgroup/cpu", 0777) = 0 openat(AT_FDCWD, "/syzcgroup/cpu/cgroup.clone_children", O_WRONLY|O_CLOEXEC) = 3 write(3, "1", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/syzcgroup/cpu/cpuset.memory_pressure_enabled", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) mount(NULL, "/proc/sys/fs/binfmt_misc", "binfmt_misc", 0, NULL) = -1 EBUSY (Device or resource busy) openat(AT_FDCWD, "/proc/sys/fs/binfmt_misc/register", O_WRONLY|O_CLOEXEC) = 3 write(3, "\x3a\x73\x79\x7a\x30\x3a\x4d\x3a\x30\x3a\x01\x3a\x3a\x2e\x2f\x66\x69\x6c\x65\x30\x3a", 21) = 21 close(3) = 0 openat(AT_FDCWD, "/proc/sys/fs/binfmt_misc/register", O_WRONLY|O_CLOEXEC) = 3 write(3, "\x3a\x73\x79\x7a\x31\x3a\x4d\x3a\x31\x3a\x02\x3a\x3a\x2f\x70\x72\x6f\x63\x2f\x74\x68\x72\x65\x61\x64\x2d\x73\x65\x6c\x66\x2f\x63\x77\x64\x2f\x66\x69\x6c\x65\x30\x3a\x50\x4f\x43", 44) = 44 close(3) = 0 chmod("/dev/raw-gadget", 0666) = 0 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=864, nlmsg_type=nlctrl, nlmsg_flags=0, nlmsg_seq=0, nlmsg_pid=5617}, {cmd=CTRL_CMD_NEWFAMILY, version=2}, [[{nla_len=13, nla_type=CTRL_ATTR_FAMILY_NAME}, "\x6e\x6c\x38\x30\x32\x31\x35\x34\x00"...], [{nla_len=6, nla_type=CTRL_ATTR_FAMILY_ID}, 0x1e], [{nla_len=8, nla_type=CTRL_ATTR_VERSION}, 1], [{nla_len=8, nla_type=CTRL_ATTR_HDRSIZE}, 0], [{nla_len=8, nla_type=CTRL_ATTR_MAXATTR}, 48], [{nla_len=744, nla_type=CTRL_ATTR_OPS}, [[{nla_len=20, nla_type=0x1}, [[{nla_len=8, nla_type=CTRL_ATTR_OP_ID}, CTRL_CMD_NEWFAMILY], [{nla_len=8, nla_type=CTRL_ATTR_OP_FLAGS}, GENL_CMD_CAP_DO|GENL_CMD_CAP_DUMP|GENL_CMD_CAP_HASPOL]]], [{nla_len=20, nla_type=0x2}, [[{nla_len=8, nla_type=CTRL_ATTR_OP_ID}, CTRL_CMD_DELOPS], [{nla_len=8, nla_type=CTRL_ATTR_OP_FLAGS}, GENL_CMD_CAP_DO|GENL_CMD_CAP_DUMP|GENL_CMD_CAP_HASPOL]]], [{nla_len=20, nla_type=0x3}, [[{nla_len=8, nla_type=CTRL_ATTR_OP_ID}, CTRL_CMD_NEWMCAST_GRP], [{nla_len=8, nla_type=CTRL_ATTR_OP_FLAGS}, GENL_ADMIN_PERM|GENL_CMD_CAP_DO|GENL_CMD_CAP_HASPOL]]], [{nla_len=20, nla_type=0x4}, [[{nla_len=8, nla_type=CTRL_ATTR_OP_ID}, CTRL_CMD_DELMCAST_GRP], [{nla_len=8, nla_type=CTRL_ATTR_OP_FLAGS}, GENL_ADMIN_PERM|GENL_CMD_CAP_DO|GENL_CMD_CAP_HASPOL]]], [{nla_len=20, nla_type=0x5}, [[{nla_len=8, nla_type=CTRL_ATTR_OP_ID}, CTRL_CMD_GETMCAST_GRP], [{nla_len=8, nla_type=CTRL_ATTR_OP_FLAGS}, GENL_ADMIN_PERM|GENL_CMD_CAP_DO|GENL_CMD_CAP_HASPOL]]], [{nla_len=20, nla_type=0x6}, [[{nla_len=8, nla_type=CTRL_ATTR_OP_ID}, 0xd /* CTRL_CMD_??? */], [{nla_len=8, nla_type=CTRL_ATTR_OP_FLAGS}, GENL_ADMIN_PERM|GENL_CMD_CAP_DO|GENL_CMD_CAP_HASPOL]]], [{nla_len=20, nla_type=0x7}, [[{nla_len=8, nla_type=CTRL_ATTR_OP_ID}, 0xe /* CTRL_CMD_??? */], [{nla_len=8, nla_type=CTRL_ATTR_OP_FLAGS}, GENL_ADMIN_PERM|GENL_CMD_CAP_DO|GENL_CMD_CAP_HASPOL]]], [{nla_len=20, nla_type=0x8}, [[{nla_len=8, nla_type=CTRL_ATTR_OP_ID}, 0xc /* CTRL_CMD_??? */], [{nla_len=8, nla_type=CTRL_ATTR_OP_FLAGS}, GENL_ADMIN_PERM|GENL_CMD_CAP_DO|GENL_CMD_CAP_HASPOL]]], [{nla_len=20, nla_type=0x9}, [[{nla_len=8, nla_type=CTRL_ATTR_OP_ID}, 0x14 /* CTRL_CMD_??? */], [{nla_len=8, nla_type=CTRL_ATTR_OP_FLAGS}, GENL_ADMIN_PERM|GENL_CMD_CAP_DO|GENL_CMD_CAP_HASPOL]]], [{nla_len=20, nla_type=0xa}, [[{nla_len=8, nla_type=CTRL_ATTR_OP_ID}, CTRL_CMD_GETPOLICY], [{nla_len=8, nla_type=CTRL_ATTR_OP_FLAGS}, GENL_ADMIN_PERM|GENL_CMD_CAP_DO|GENL_CMD_CAP_HASPOL]]], [{nla_len=20, nla_type=0xb}, [[{nla_len=8, nla_type=CTRL_ATTR_OP_ID}, 0xb /* CTRL_CMD_??? */], [{nla_len=8, nla_type=CTRL_ATTR_OP_FLAGS}, GENL_ADMIN_PERM|GENL_CMD_CAP_DO|GENL_CMD_CAP_HASPOL]]], [{nla_len=20, nla_type=0xc}, [[{nla_len=8, nla_type=CTRL_ATTR_OP_ID}, 0x10 /* CTRL_CMD_??? */], [{nla_len=8, nla_type=CTRL_ATTR_OP_FLAGS}, GENL_ADMIN_PERM|GENL_CMD_CAP_DO|GENL_CMD_CAP_HASPOL]]], [{nla_len=20, nla_type=0xd}, [[{nla_len=8, nla_type=CTRL_ATTR_OP_ID}, 0x11 /* CTRL_CMD_??? */], [{nla_len=8, nla_type=CTRL_ATTR_OP_FLAGS}, GENL_ADMIN_PERM|GENL_CMD_CAP_DO|GENL_CMD_CAP_HASPOL]]], [{nla_len=20, nla_type=0xe}, [[{nla_len=8, nla_type=CTRL_ATTR_OP_ID}, 0xf /* CTRL_CMD_??? */], [{nla_len=8, nla_type=CTRL_ATTR_OP_FLAGS}, GENL_ADMIN_PERM|GENL_CMD_CAP_DO|GENL_CMD_CAP_HASPOL]]], [{nla_len=20, nla_type=0xf}, [[{nla_len=8, nla_type=CTRL_ATTR_OP_ID}, 0x12 /* CTRL_CMD_??? */], [{nla_len=8, nla_type=CTRL_ATTR_OP_FLAGS}, GENL_ADMIN_PERM|GENL_CMD_CAP_DO|GENL_CMD_CAP_HASPOL]]], [{nla_len=20, nla_type=0x10}, [[{nla_len=8, nla_type=CTRL_ATTR_OP_ID}, 0x13 /* CTRL_CMD_??? */], [{nla_len=8, nla_type=CTRL_ATTR_OP_FLAGS}, GENL_ADMIN_PERM|GENL_CMD_CAP_DO|GENL_CMD_CAP_HASPOL]]], [{nla_len=20, nla_type=0x11}, [[{nla_len=8, nla_type=CTRL_ATTR_OP_ID}, 0x23 /* CTRL_CMD_??? */], [{nla_len=8, nla_type=CTRL_ATTR_OP_FLAGS}, GENL_ADMIN_PERM|GENL_CMD_CAP_DO|GENL_CMD_CAP_HASPOL]]], [{nla_len=20, nla_type=0x12}, [[{nla_len=8, nla_type=CTRL_ATTR_OP_ID}, 0x24 /* CTRL_CMD_??? */], [{nla_len=8, nla_type=CTRL_ATTR_OP_FLAGS}, GENL_ADMIN_PERM|GENL_CMD_CAP_DO|GENL_CMD_CAP_HASPOL]]], [{nla_len=20, nla_type=0x13}, [[{nla_len=8, nla_type=CTRL_ATTR_OP_ID}, 0x26 /* CTRL_CMD_??? */], [{nla_len=8, nla_type=CTRL_ATTR_OP_FLAGS}, GENL_ADMIN_PERM|GENL_CMD_CAP_DO|GENL_CMD_CAP_HASPOL]]], [{nla_len=20, nla_type=0x14}, [[{nla_len=8, nla_type=CTRL_ATTR_OP_ID}, 0x27 /* CTRL_CMD_??? */], [{nla_len=8, nla_type=CTRL_ATTR_OP_FLAGS}, GENL_ADMIN_PERM|GENL_CMD_CAP_DO|GENL_CMD_CAP_HASPOL]]], [{nla_len=20, nla_type=0x15}, [[{nla_len=8, nla_type=CTRL_ATTR_OP_ID}, 0x28 /* CTRL_CMD_??? */], [{nla_len=8, nla_type=CTRL_ATTR_OP_FLAGS}, GENL_ADMIN_PERM|GENL_CMD_CAP_DO|GENL_CMD_CAP_HASPOL]]], [{nla_len=20, nla_type=0x16}, [[{nla_len=8, nla_type=CTRL_ATTR_OP_ID}, 0x29 /* CTRL_CMD_??? */], [{nla_len=8, nla_type=CTRL_ATTR_OP_FLAGS}, GENL_ADMIN_PERM|GENL_CMD_CAP_DO|GENL_CMD_CAP_HASPOL]]], [{nla_len=20, nla_type=0x17}, [[{nla_len=8, nla_type=CTRL_ATTR_OP_ID}, 0x2a /* CTRL_CMD_??? */], [{nla_len=8, nla_type=CTRL_ATTR_OP_FLAGS}, GENL_ADMIN_PERM|GENL_CMD_CAP_DO|GENL_CMD_CAP_HASPOL]]], [{nla_len=20, nla_type=0x18}, [[{nla_len=8, nla_type=CTRL_ATTR_OP_ID}, 0x2b /* CTRL_CMD_??? */], [{nla_len=8, nla_type=CTRL_ATTR_OP_FLAGS}, GENL_CMD_CAP_DUMP|GENL_CMD_CAP_HASPOL]]], [{nla_len=20, nla_type=0x19}, [[{nla_len=8, nla_type=CTRL_ATTR_OP_ID}, 0x15 /* CTRL_CMD_??? */], [{nla_len=8, nla_type=CTRL_ATTR_OP_FLAGS}, GENL_ADMIN_PERM|GENL_CMD_CAP_DO|GENL_CMD_CAP_HASPOL]]], [{nla_len=20, nla_type=0x1a}, [[{nla_len=8, nla_type=CTRL_ATTR_OP_ID}, 0x16 /* CTRL_CMD_??? */], [{nla_len=8, nla_type=CTRL_ATTR_OP_FLAGS}, GENL_ADMIN_PERM|GENL_CMD_CAP_DUMP|GENL_CMD_CAP_HASPOL]]], [{nla_len=20, nla_type=0x1b}, [[{nla_len=8, nla_type=CTRL_ATTR_OP_ID}, 0x17 /* CTRL_CMD_??? */], [{nla_len=8, nla_type=CTRL_ATTR_OP_FLAGS}, GENL_ADMIN_PERM|GENL_CMD_CAP_DO|GENL_CMD_CAP_HASPOL]]], [{nla_len=20, nla_type=0x1c}, [[{nla_len=8, nla_type=CTRL_ATTR_OP_ID}, 0x18 /* CTRL_CMD_??? */], [{nla_len=8, nla_type=CTRL_ATTR_OP_FLAGS}, GENL_ADMIN_PERM|GENL_CMD_CAP_DO|GENL_CMD_CAP_HASPOL]]], [{nla_len=20, nla_type=0x1d}, [[{nla_len=8, nla_type=CTRL_ATTR_OP_ID}, 0x19 /* CTRL_CMD_??? */], [{nla_len=8, nla_type=CTRL_ATTR_OP_FLAGS}, GENL_ADMIN_PERM|GENL_CMD_CAP_DUMP|GENL_CMD_CAP_HASPOL]]], [{nla_len=20, nla_type=0x1e}, [[{nla_len=8, nla_type=CTRL_ATTR_OP_ID}, 0x1a /* CTRL_CMD_??? */], [{nla_len=8, nla_type=CTRL_ATTR_OP_FLAGS}, GENL_ADMIN_PERM|GENL_CMD_CAP_DO|GENL_CMD_CAP_HASPOL]]], [{nla_len=20, nla_type=0x1f}, [[{nla_len=8, nla_type=CTRL_ATTR_OP_ID}, 0x1b /* CTRL_CMD_??? */], [{nla_len=8, nla_type=CTRL_ATTR_OP_FLAGS}, GENL_ADMIN_PERM|GENL_CMD_CAP_DO|GENL_CMD_CAP_HASPOL]]], [{nla_len=20, nla_type=0x20}, [[{nla_len=8, nla_type=CTRL_ATTR_OP_ID}, 0x1c /* CTRL_CMD_??? */], [{nla_len=8, nla_type=CTRL_ATTR_OP_FLAGS}, GENL_ADMIN_PERM|GENL_CMD_CAP_DUMP|GENL_CMD_CAP_HASPOL]]], [{nla_len=20, nla_type=0x21}, [[{nla_len=8, nla_type=CTRL_ATTR_OP_ID}, 0x1d /* CTRL_CMD_??? */], [{nla_len=8, nla_type=CTRL_ATTR_OP_FLAGS}, GENL_ADMIN_PERM|GENL_CMD_CAP_DO|GENL_CMD_CAP_HASPOL]]], [{nla_len=20, nla_type=0x22}, [[{nla_len=8, nla_type=CTRL_ATTR_OP_ID}, 0x1e /* CTRL_CMD_??? */], [{nla_len=8, nla_type=CTRL_ATTR_OP_FLAGS}, GENL_ADMIN_PERM|GENL_CMD_CAP_DO|GENL_CMD_CAP_HASPOL]]], [{nla_len=20, nla_type=0x23}, [[{nla_len=8, nla_type=CTRL_ATTR_OP_ID}, 0x1f /* CTRL_CMD_??? */], [{nla_len=8, nla_type=CTRL_ATTR_OP_FLAGS}, GENL_ADMIN_PERM|GENL_CMD_CAP_DUMP|GENL_CMD_CAP_HASPOL]]], [{nla_len=20, nla_type=0x24}, [[{nla_len=8, nla_type=CTRL_ATTR_OP_ID}, 0x20 /* CTRL_CMD_??? */], [{nla_len=8, nla_type=CTRL_ATTR_OP_FLAGS}, GENL_ADMIN_PERM|GENL_CMD_CAP_DO|GENL_CMD_CAP_HASPOL]]], [{nla_len=20, nla_type=0x25}, [[{nla_len=8, nla_type=CTRL_ATTR_OP_ID}, 0x21 /* CTRL_CMD_??? */], [{nla_len=8, nla_type=CTRL_ATTR_OP_FLAGS}, GENL_ADMIN_PERM|GENL_CMD_CAP_DO|GENL_CMD_CAP_HASPOL]]]]], [{nla_len=52, nla_type=CTRL_ATTR_MCAST_GROUPS}, [[{nla_len=24, nla_type=0x1}, [[{nla_len=8, nla_type=CTRL_ATTR_MCAST_GRP_ID}, 0xc], [{nla_len=11, nla_type=CTRL_ATTR_MCAST_GRP_NAME}, "\x63\x6f\x6e\x66\x69\x67\x00"...]]], [{nla_len=24, nla_type=0x2}, [[{nla_len=8, nla_type=CTRL_ATTR_MCAST_GRP_ID}, 0xd], [{nla_len=9, nla_type=CTRL_ATTR_MCAST_GRP_NAME}, "\x73\x63\x61\x6e\x00"...]]]]]]], 4096, 0, NULL, NULL) = 864 recvfrom(4, [{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=0, nlmsg_pid=5617}, {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 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}, {cmd=0xb, version=0}, [[{nla_len=8, nla_type=0x3}, "\x0b\x00\x00\x00"], [{nla_len=6, nla_type=0xa}, "\xa0\xaa"]]], 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=5617}, {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=5617}, {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=84, 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=8, nla_type=IFLA_NUM_TX_QUEUES}, 2], [{nla_len=8, nla_type=IFLA_NUM_RX_QUEUES}, 2], [{nla_len=16, nla_type=IFLA_LINKINFO}, [{nla_len=10, nla_type=IFLA_INFO_KIND}, "lowpan"...]], [{nla_len=8, nla_type=IFLA_LINK}, 11]]], 84, 0, {sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, 12) = 84 recvfrom(3, [{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=0, nlmsg_pid=5617}, {error=0, msg={nlmsg_len=84, 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}, {cmd=0xb, version=0}, [[{nla_len=8, nla_type=0x3}, "\x0c\x00\x00\x00"], [{nla_len=6, nla_type=0xa}, "\xa1\xaa"]]], 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=5617}, {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=5617}, {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 swapoff("./swap-file") = -1 ENOENT (No such file or directory) unlink("./swap-file") = -1 ENOENT (No such file or directory) openat(AT_FDCWD, "./swap-file", O_WRONLY|O_CREAT|O_CLOEXEC, 0600) = 3 fallocate(3, FALLOC_FL_ZERO_RANGE, 0, 128000000) = 0 close(3) = 0 rt_sigaction(SIGINT, {sa_handler=SIG_IGN, sa_mask=[], sa_flags=SA_RESTORER, sa_restorer=0x7fc51c9680e0}, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0 rt_sigaction(SIGQUIT, {sa_handler=SIG_IGN, sa_mask=[], sa_flags=SA_RESTORER, sa_restorer=0x7fc51c9680e0}, {sa_handler=SIG_IGN, sa_mask=[], sa_flags=0}, 8) = 0 rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0 mmap(NULL, 36864, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc51c91c000 rt_sigprocmask(SIG_BLOCK, ~[], [CHLD], 8) = 0 clone3({flags=CLONE_VM|CLONE_VFORK|CLONE_CLEAR_SIGHAND, exit_signal=SIGCHLD, stack=0x7fc51c91c000, stack_size=0x9000}, 88ci-upstream-linux-next-kasan-gce-root/strace-static-x86_64: Process 5621 attached [pid 5621] rt_sigprocmask(SIG_BLOCK, NULL, ~[KILL STOP], 8) = 0 [pid 5621] rt_sigaction(SIGINT, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=SA_RESTORER, sa_restorer=0x7fc51c9680e0}, NULL, 8) = 0 [pid 5621] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5621] execve("/bin/sh", ["sh", "-c", "--", "mkswap ./swap-file"], 0x7ffd601b8b48 /* 10 vars */ [pid 5617] <... clone3 resumed>) = 5621 [pid 5617] munmap(0x7fc51c91c000, 36864) = 0 [pid 5621] <... execve resumed>) = 0 [pid 5617] rt_sigprocmask(SIG_SETMASK, [CHLD] [pid 5621] brk(NULL [pid 5617] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5621] <... brk resumed>) = 0x5636d29f6000 [pid 5621] mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f128da29000 [pid 5621] access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory) [pid 5621] openat(AT_FDCWD, "/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 5621] openat(AT_FDCWD, "/lib64/glibc-hwcaps/x86-64-v3/libbusybox.so.1.37.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 5621] newfstatat(AT_FDCWD, "/lib64/glibc-hwcaps/x86-64-v3/", 0x7ffc0d5ca4b0, 0) = -1 ENOENT (No such file or directory) [pid 5621] openat(AT_FDCWD, "/lib64/glibc-hwcaps/x86-64-v2/libbusybox.so.1.37.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 5621] newfstatat(AT_FDCWD, "/lib64/glibc-hwcaps/x86-64-v2/", 0x7ffc0d5ca4b0, 0) = -1 ENOENT (No such file or directory) [pid 5621] openat(AT_FDCWD, "/lib64/libbusybox.so.1.37.0", O_RDONLY|O_CLOEXEC) = 3 [pid 5621] read(3, "\x7f\x45\x4c\x46\x02\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x03\x00\x3e\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x40\x00\x00\x00\x00\x00\x00\x00\x38\x13\x0c\x00\x00\x00\x00\x00\x00\x00\x00\x00\x40\x00\x38\x00\x09\x00\x40\x00\x19\x00\x18\x00\x01\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xc8\xf4\x00\x00"..., 832) = 832 [pid 5621] fstat(3, {st_mode=S_IFREG|0644, st_size=792952, ...}) = 0 [pid 5621] mmap(NULL, 792856, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f128d967000 [pid 5621] mmap(0x7f128d977000, 548864, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x10000) = 0x7f128d977000 [pid 5621] mmap(0x7f128d9fd000, 163840, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x96000) = 0x7f128d9fd000 [pid 5621] mmap(0x7f128da25000, 16384, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0xbe000) = 0x7f128da25000 [pid 5621] close(3) = 0 [pid 5621] openat(AT_FDCWD, "/lib64/libc.so.6", O_RDONLY|O_CLOEXEC) = 3 [pid 5621] read(3, "\x7f\x45\x4c\x46\x02\x01\x01\x03\x00\x00\x00\x00\x00\x00\x00\x00\x03\x00\x3e\x00\x01\x00\x00\x00\xf0\xab\x02\x00\x00\x00\x00\x00\x40\x00\x00\x00\x00\x00\x00\x00\x38\x22\x1d\x00\x00\x00\x00\x00\x00\x00\x00\x00\x40\x00\x38\x00\x0e\x00\x40\x00\x3b\x00\x3a\x00\x06\x00\x00\x00\x04\x00\x00\x00\x40\x00\x00\x00\x00\x00\x00\x00\x40\x00\x00\x00\x00\x00\x00\x00\x40\x00\x00\x00\x00\x00\x00\x00\x10\x03\x00\x00"..., 832) = 832 [pid 5621] pread64(3, "\x06\x00\x00\x00\x04\x00\x00\x00\x40\x00\x00\x00\x00\x00\x00\x00\x40\x00\x00\x00\x00\x00\x00\x00\x40\x00\x00\x00\x00\x00\x00\x00\x10\x03\x00\x00\x00\x00\x00\x00\x10\x03\x00\x00\x00\x00\x00\x00\x08\x00\x00\x00\x00\x00\x00\x00\x03\x00\x00\x00\x04\x00\x00\x00\x60\xc1\x19\x00\x00\x00\x00\x00\x60\xc1\x19\x00\x00\x00\x00\x00\x60\xc1\x19\x00\x00\x00\x00\x00\x1c\x00\x00\x00\x00\x00\x00\x00\x1c\x00\x00\x00"..., 784, 64) = 784 [pid 5621] fstat(3, {st_mode=S_IFREG|0755, st_size=1913080, ...}) = 0 [pid 5621] pread64(3, "\x06\x00\x00\x00\x04\x00\x00\x00\x40\x00\x00\x00\x00\x00\x00\x00\x40\x00\x00\x00\x00\x00\x00\x00\x40\x00\x00\x00\x00\x00\x00\x00\x10\x03\x00\x00\x00\x00\x00\x00\x10\x03\x00\x00\x00\x00\x00\x00\x08\x00\x00\x00\x00\x00\x00\x00\x03\x00\x00\x00\x04\x00\x00\x00\x60\xc1\x19\x00\x00\x00\x00\x00\x60\xc1\x19\x00\x00\x00\x00\x00\x60\xc1\x19\x00\x00\x00\x00\x00\x1c\x00\x00\x00\x00\x00\x00\x00\x1c\x00\x00\x00"..., 784, 64) = 784 [pid 5621] mmap(NULL, 1965720, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f128d787000 [pid 5621] mmap(0x7f128d7af000, 1368064, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x28000) = 0x7f128d7af000 [pid 5621] mmap(0x7f128d8fd000, 356352, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x176000) = 0x7f128d8fd000 [pid 5621] mmap(0x7f128d954000, 24576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1cc000) = 0x7f128d954000 [pid 5621] mmap(0x7f128d95a000, 52888, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7f128d95a000 [pid 5621] close(3) = 0 [pid 5621] openat(AT_FDCWD, "/lib64/libpam.so.0", O_RDONLY|O_CLOEXEC) = 3 [pid 5621] read(3, "\x7f\x45\x4c\x46\x02\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x03\x00\x3e\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x40\x00\x00\x00\x00\x00\x00\x00\xf8\xf0\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x40\x00\x38\x00\x0a\x00\x40\x00\x1b\x00\x1a\x00\x01\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xe0\x29\x00\x00"..., 832) = 832 [pid 5621] fstat(3, {st_mode=S_IFREG|0755, st_size=63416, ...}) = 0 [pid 5621] mmap(NULL, 65552, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f128d776000 [pid 5621] mmap(0x7f128d779000, 32768, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x3000) = 0x7f128d779000 [pid 5621] mmap(0x7f128d781000, 16384, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0xb000) = 0x7f128d781000 [pid 5621] mmap(0x7f128d785000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0xe000) = 0x7f128d785000 [pid 5621] close(3) = 0 [pid 5621] openat(AT_FDCWD, "/lib64/libpam_misc.so.0", O_RDONLY|O_CLOEXEC) = 3 [pid 5621] read(3, "\x7f\x45\x4c\x46\x02\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x03\x00\x3e\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x40\x00\x00\x00\x00\x00\x00\x00\x00\x51\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x40\x00\x38\x00\x0a\x00\x40\x00\x1a\x00\x19\x00\x01\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xd8\x12\x00\x00"..., 832) = 832 [pid 5621] fstat(3, {st_mode=S_IFREG|0755, st_size=22400, ...}) = 0 [pid 5621] mmap(NULL, 24656, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f128d76f000 [pid 5621] mmap(0x7f128d771000, 8192, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x2000) = 0x7f128d771000 [pid 5621] mmap(0x7f128d773000, 4096, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x4000) = 0x7f128d773000 [pid 5621] mmap(0x7f128d774000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x4000) = 0x7f128d774000 [pid 5621] close(3) = 0 [pid 5621] openat(AT_FDCWD, "/lib64/libresolv.so.2", O_RDONLY|O_CLOEXEC) = 3 [pid 5621] read(3, "\x7f\x45\x4c\x46\x02\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x03\x00\x3e\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x40\x00\x00\x00\x00\x00\x00\x00\xa8\xe1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x40\x00\x38\x00\x0b\x00\x40\x00\x1d\x00\x1c\x00\x01\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x08\x27\x00\x00"..., 832) = 832 [pid 5621] fstat(3, {st_mode=S_IFREG|0755, st_size=59624, ...}) = 0 [pid 5621] mmap(NULL, 67720, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f128d75e000 [pid 5621] mmap(0x7f128d761000, 32768, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x3000) = 0x7f128d761000 [pid 5621] mmap(0x7f128d769000, 8192, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0xb000) = 0x7f128d769000 [pid 5621] mmap(0x7f128d76b000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0xd000) = 0x7f128d76b000 [pid 5621] mmap(0x7f128d76d000, 6280, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7f128d76d000 [pid 5621] close(3) = 0 [pid 5621] openat(AT_FDCWD, "/lib64/libselinux.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 5621] openat(AT_FDCWD, "/usr/lib64/glibc-hwcaps/x86-64-v3/libselinux.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 5621] newfstatat(AT_FDCWD, "/usr/lib64/glibc-hwcaps/x86-64-v3/", 0x7ffc0d5ca410, 0) = -1 ENOENT (No such file or directory) [pid 5621] openat(AT_FDCWD, "/usr/lib64/glibc-hwcaps/x86-64-v2/libselinux.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 5621] newfstatat(AT_FDCWD, "/usr/lib64/glibc-hwcaps/x86-64-v2/", 0x7ffc0d5ca410, 0) = -1 ENOENT (No such file or directory) [pid 5621] openat(AT_FDCWD, "/usr/lib64/libselinux.so.1", O_RDONLY|O_CLOEXEC) = 3 [pid 5621] read(3, "\x7f\x45\x4c\x46\x02\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x03\x00\x3e\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x40\x00\x00\x00\x00\x00\x00\x00\x60\xd1\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x40\x00\x38\x00\x0b\x00\x40\x00\x1d\x00\x1c\x00\x01\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x28\x74\x00\x00"..., 832) = 832 [pid 5621] fstat(3, {st_mode=S_IFREG|0755, st_size=186528, ...}) = 0 [pid 5621] mmap(NULL, 194256, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f128d72e000 [pid 5621] mmap(0x7f128d736000, 114688, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x8000) = 0x7f128d736000 [pid 5621] mmap(0x7f128d752000, 32768, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x24000) = 0x7f128d752000 [pid 5621] mmap(0x7f128d75a000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x2c000) = 0x7f128d75a000 [pid 5621] mmap(0x7f128d75c000, 5840, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7f128d75c000 [pid 5621] close(3) = 0 [pid 5621] mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f128d72c000 [pid 5621] openat(AT_FDCWD, "/lib64/libatomic.so.1", O_RDONLY|O_CLOEXEC) = 3 [pid 5621] read(3, "\x7f\x45\x4c\x46\x02\x01\x01\x03\x00\x00\x00\x00\x00\x00\x00\x00\x03\x00\x3e\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x40\x00\x00\x00\x00\x00\x00\x00\x30\x71\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x40\x00\x38\x00\x0a\x00\x40\x00\x1b\x00\x1a\x00\x01\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x78\x1f\x00\x00"..., 832) = 832 [pid 5621] fstat(3, {st_mode=S_IFREG|0755, st_size=30704, ...}) = 0 [pid 5621] mmap(NULL, 37000, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f128d722000 [pid 5621] mmap(0x7f128d724000, 12288, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x2000) = 0x7f128d724000 [pid 5621] mmap(0x7f128d727000, 8192, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x5000) = 0x7f128d727000 [pid 5621] mmap(0x7f128d729000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x6000) = 0x7f128d729000 [pid 5621] mmap(0x7f128d72b000, 136, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7f128d72b000 [pid 5621] close(3) = 0 [pid 5621] openat(AT_FDCWD, "/lib64/libpcre2-8.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 5621] openat(AT_FDCWD, "/usr/lib64/libpcre2-8.so.0", O_RDONLY|O_CLOEXEC) = 3 [pid 5621] read(3, "\x7f\x45\x4c\x46\x02\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x03\x00\x3e\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x40\x00\x00\x00\x00\x00\x00\x00\xf0\x00\x06\x00\x00\x00\x00\x00\x00\x00\x00\x00\x40\x00\x38\x00\x0a\x00\x40\x00\x1a\x00\x19\x00\x01\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xc8\x20\x00\x00"..., 832) = 832 [pid 5621] fstat(3, {st_mode=S_IFREG|0755, st_size=395120, ...}) = 0 [pid 5621] mmap(NULL, 397336, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f128d6c0000 [pid 5621] mmap(0x7f128d6c3000, 225280, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x3000) = 0x7f128d6c3000 [pid 5621] mmap(0x7f128d6fa000, 155648, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x3a000) = 0x7f128d6fa000 [pid 5621] mmap(0x7f128d720000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x5f000) = 0x7f128d720000 [pid 5621] close(3) = 0 [pid 5621] mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f128d6be000 [pid 5621] arch_prctl(ARCH_SET_FS, 0x7f128d6bec80) = 0 [pid 5621] set_tid_address(0x7f128d6bef50) = 5621 [pid 5621] set_robust_list(0x7f128d6bef60, 24) = 0 [pid 5621] rseq({cpu_id_start=0, cpu_id=RSEQ_CPU_ID_UNINITIALIZED, rseq_cs=NULL, flags=0, node_id=0, mm_cid=0, slice_ctrl={request=0, granted=0, __reserved=0}, __reserved=0}, 33, 0, 0x53053053) = 0 [pid 5621] mprotect(0x7f128d954000, 16384, PROT_READ) = 0 [pid 5621] mprotect(0x7f128d720000, 4096, PROT_READ) = 0 [pid 5621] mprotect(0x7f128d729000, 4096, PROT_READ) = 0 [pid 5621] mprotect(0x7f128d75a000, 4096, PROT_READ) = 0 [pid 5621] mprotect(0x7f128d76b000, 4096, PROT_READ) = 0 [pid 5621] mprotect(0x7f128d785000, 4096, PROT_READ) = 0 [pid 5621] mprotect(0x7f128d774000, 4096, PROT_READ) = 0 [pid 5621] mprotect(0x7f128da25000, 12288, PROT_READ) = 0 [pid 5621] mprotect(0x563699c3f000, 4096, PROT_READ) = 0 [pid 5621] mprotect(0x7f128da66000, 8192, PROT_READ) = 0 [pid 5621] prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 [pid 5621] statfs("/sys/fs/selinux", 0x7ffc0d5cb250) = -1 ENOENT (No such file or directory) [pid 5621] statfs("/selinux", 0x7ffc0d5cb250) = -1 ENOENT (No such file or directory) [pid 5621] getrandom("\x6b\x8f\xa5\xc5\xdf\x97\x34\xba", 8, GRND_NONBLOCK) = 8 [pid 5621] brk(NULL) = 0x5636d29f6000 [pid 5621] brk(0x5636d2a17000) = 0x5636d2a17000 [pid 5621] openat(AT_FDCWD, "/proc/filesystems", O_RDONLY|O_CLOEXEC) = 3 [pid 5621] fstat(3, {st_mode=S_IFREG|0444, st_size=0, ...}) = 0 [pid 5621] read(3, "nodev\tsysfs\nnodev\ttmpfs\nnodev\tproc\nnodev\tcgroup\nnodev\tcgroup2\nnodev\tdevtmpfs\nnodev\tbinfmt_misc\nnodev"..., 1024) = 740 [pid 5621] read(3, "", 1024) = 0 [pid 5621] close(3) = 0 [pid 5621] access("/etc/selinux/config", F_OK) = 0 [pid 5621] getpid() = 5621 [pid 5621] rt_sigaction(SIGCHLD, {sa_handler=0x7f128d9aa287, sa_mask=~[RTMIN RT_1], sa_flags=SA_RESTORER, sa_restorer=0x7f128d7c6180}, NULL, 8) = 0 [pid 5621] getppid() = 5617 [pid 5621] uname({sysname="Linux", nodename="syzkaller", ...}) = 0 [pid 5621] newfstatat(AT_FDCWD, "/root", {st_mode=S_IFDIR|0700, st_size=4096, ...}, 0) = 0 [pid 5621] newfstatat(AT_FDCWD, ".", {st_mode=S_IFDIR|0700, st_size=4096, ...}, 0) = 0 [pid 5621] rt_sigaction(SIGINT, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0 [pid 5621] rt_sigaction(SIGINT, {sa_handler=0x7f128d9aa287, sa_mask=~[RTMIN RT_1], sa_flags=SA_RESTORER, sa_restorer=0x7f128d7c6180}, NULL, 8) = 0 [pid 5621] rt_sigaction(SIGQUIT, NULL, {sa_handler=SIG_IGN, sa_mask=[], sa_flags=0}, 8) = 0 [pid 5621] rt_sigaction(SIGTERM, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0 [pid 5621] newfstatat(AT_FDCWD, "/bin/mkswap", 0x7ffc0d5cada8, 0) = -1 ENOENT (No such file or directory) [pid 5621] newfstatat(AT_FDCWD, "/sbin/mkswap", {st_mode=S_IFREG|0755, st_size=14256, ...}, 0) = 0 [pid 5621] execve("/sbin/mkswap", ["mkswap", "./swap-file"], 0x5636d29f6d40 /* 10 vars */) = 0 [pid 5621] brk(NULL) = 0x56494e6d4000 [pid 5621] mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6f07b38000 [pid 5621] access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory) [pid 5621] openat(AT_FDCWD, "/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 5621] openat(AT_FDCWD, "/lib64/glibc-hwcaps/x86-64-v3/libbusybox.so.1.37.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 5621] newfstatat(AT_FDCWD, "/lib64/glibc-hwcaps/x86-64-v3/", 0x7fffc8532cb0, 0) = -1 ENOENT (No such file or directory) [pid 5621] openat(AT_FDCWD, "/lib64/glibc-hwcaps/x86-64-v2/libbusybox.so.1.37.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 5621] newfstatat(AT_FDCWD, "/lib64/glibc-hwcaps/x86-64-v2/", 0x7fffc8532cb0, 0) = -1 ENOENT (No such file or directory) [pid 5621] openat(AT_FDCWD, "/lib64/libbusybox.so.1.37.0", O_RDONLY|O_CLOEXEC) = 3 [pid 5621] read(3, "\x7f\x45\x4c\x46\x02\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x03\x00\x3e\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x40\x00\x00\x00\x00\x00\x00\x00\x38\x13\x0c\x00\x00\x00\x00\x00\x00\x00\x00\x00\x40\x00\x38\x00\x09\x00\x40\x00\x19\x00\x18\x00\x01\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xc8\xf4\x00\x00"..., 832) = 832 [pid 5621] fstat(3, {st_mode=S_IFREG|0644, st_size=792952, ...}) = 0 [pid 5621] mmap(NULL, 792856, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f6f07a76000 [pid 5621] mmap(0x7f6f07a86000, 548864, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x10000) = 0x7f6f07a86000 [pid 5621] mmap(0x7f6f07b0c000, 163840, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x96000) = 0x7f6f07b0c000 [pid 5621] mmap(0x7f6f07b34000, 16384, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0xbe000) = 0x7f6f07b34000 [pid 5621] close(3) = 0 [pid 5621] openat(AT_FDCWD, "/lib64/libc.so.6", O_RDONLY|O_CLOEXEC) = 3 [pid 5621] read(3, "\x7f\x45\x4c\x46\x02\x01\x01\x03\x00\x00\x00\x00\x00\x00\x00\x00\x03\x00\x3e\x00\x01\x00\x00\x00\xf0\xab\x02\x00\x00\x00\x00\x00\x40\x00\x00\x00\x00\x00\x00\x00\x38\x22\x1d\x00\x00\x00\x00\x00\x00\x00\x00\x00\x40\x00\x38\x00\x0e\x00\x40\x00\x3b\x00\x3a\x00\x06\x00\x00\x00\x04\x00\x00\x00\x40\x00\x00\x00\x00\x00\x00\x00\x40\x00\x00\x00\x00\x00\x00\x00\x40\x00\x00\x00\x00\x00\x00\x00\x10\x03\x00\x00"..., 832) = 832 [pid 5621] pread64(3, "\x06\x00\x00\x00\x04\x00\x00\x00\x40\x00\x00\x00\x00\x00\x00\x00\x40\x00\x00\x00\x00\x00\x00\x00\x40\x00\x00\x00\x00\x00\x00\x00\x10\x03\x00\x00\x00\x00\x00\x00\x10\x03\x00\x00\x00\x00\x00\x00\x08\x00\x00\x00\x00\x00\x00\x00\x03\x00\x00\x00\x04\x00\x00\x00\x60\xc1\x19\x00\x00\x00\x00\x00\x60\xc1\x19\x00\x00\x00\x00\x00\x60\xc1\x19\x00\x00\x00\x00\x00\x1c\x00\x00\x00\x00\x00\x00\x00\x1c\x00\x00\x00"..., 784, 64) = 784 [pid 5621] fstat(3, {st_mode=S_IFREG|0755, st_size=1913080, ...}) = 0 [pid 5621] pread64(3, "\x06\x00\x00\x00\x04\x00\x00\x00\x40\x00\x00\x00\x00\x00\x00\x00\x40\x00\x00\x00\x00\x00\x00\x00\x40\x00\x00\x00\x00\x00\x00\x00\x10\x03\x00\x00\x00\x00\x00\x00\x10\x03\x00\x00\x00\x00\x00\x00\x08\x00\x00\x00\x00\x00\x00\x00\x03\x00\x00\x00\x04\x00\x00\x00\x60\xc1\x19\x00\x00\x00\x00\x00\x60\xc1\x19\x00\x00\x00\x00\x00\x60\xc1\x19\x00\x00\x00\x00\x00\x1c\x00\x00\x00\x00\x00\x00\x00\x1c\x00\x00\x00"..., 784, 64) = 784 [pid 5621] mmap(NULL, 1965720, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f6f07896000 [pid 5621] mmap(0x7f6f078be000, 1368064, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x28000) = 0x7f6f078be000 [pid 5621] mmap(0x7f6f07a0c000, 356352, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x176000) = 0x7f6f07a0c000 [pid 5621] mmap(0x7f6f07a63000, 24576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1cc000) = 0x7f6f07a63000 [pid 5621] mmap(0x7f6f07a69000, 52888, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7f6f07a69000 [pid 5621] close(3) = 0 [pid 5621] openat(AT_FDCWD, "/lib64/libpam.so.0", O_RDONLY|O_CLOEXEC) = 3 [pid 5621] read(3, "\x7f\x45\x4c\x46\x02\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x03\x00\x3e\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x40\x00\x00\x00\x00\x00\x00\x00\xf8\xf0\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x40\x00\x38\x00\x0a\x00\x40\x00\x1b\x00\x1a\x00\x01\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xe0\x29\x00\x00"..., 832) = 832 [pid 5621] fstat(3, {st_mode=S_IFREG|0755, st_size=63416, ...}) = 0 [pid 5621] mmap(NULL, 65552, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f6f07885000 [pid 5621] mmap(0x7f6f07888000, 32768, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x3000) = 0x7f6f07888000 [pid 5621] mmap(0x7f6f07890000, 16384, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0xb000) = 0x7f6f07890000 [pid 5621] mmap(0x7f6f07894000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0xe000) = 0x7f6f07894000 [pid 5621] close(3) = 0 [pid 5621] openat(AT_FDCWD, "/lib64/libpam_misc.so.0", O_RDONLY|O_CLOEXEC) = 3 [pid 5621] read(3, "\x7f\x45\x4c\x46\x02\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x03\x00\x3e\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x40\x00\x00\x00\x00\x00\x00\x00\x00\x51\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x40\x00\x38\x00\x0a\x00\x40\x00\x1a\x00\x19\x00\x01\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xd8\x12\x00\x00"..., 832) = 832 [pid 5621] fstat(3, {st_mode=S_IFREG|0755, st_size=22400, ...}) = 0 [pid 5621] mmap(NULL, 24656, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f6f0787e000 [pid 5621] mmap(0x7f6f07880000, 8192, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x2000) = 0x7f6f07880000 [pid 5621] mmap(0x7f6f07882000, 4096, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x4000) = 0x7f6f07882000 [pid 5621] mmap(0x7f6f07883000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x4000) = 0x7f6f07883000 [pid 5621] close(3) = 0 [pid 5621] openat(AT_FDCWD, "/lib64/libresolv.so.2", O_RDONLY|O_CLOEXEC) = 3 [pid 5621] read(3, "\x7f\x45\x4c\x46\x02\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x03\x00\x3e\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x40\x00\x00\x00\x00\x00\x00\x00\xa8\xe1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x40\x00\x38\x00\x0b\x00\x40\x00\x1d\x00\x1c\x00\x01\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x08\x27\x00\x00"..., 832) = 832 [pid 5621] fstat(3, {st_mode=S_IFREG|0755, st_size=59624, ...}) = 0 [pid 5621] mmap(NULL, 67720, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f6f0786d000 [pid 5621] mmap(0x7f6f07870000, 32768, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x3000) = 0x7f6f07870000 [pid 5621] mmap(0x7f6f07878000, 8192, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0xb000) = 0x7f6f07878000 [pid 5621] mmap(0x7f6f0787a000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0xd000) = 0x7f6f0787a000 [pid 5621] mmap(0x7f6f0787c000, 6280, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7f6f0787c000 [pid 5621] close(3) = 0 [pid 5621] openat(AT_FDCWD, "/lib64/libselinux.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 5621] openat(AT_FDCWD, "/usr/lib64/glibc-hwcaps/x86-64-v3/libselinux.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 5621] newfstatat(AT_FDCWD, "/usr/lib64/glibc-hwcaps/x86-64-v3/", 0x7fffc8532c10, 0) = -1 ENOENT (No such file or directory) [pid 5621] openat(AT_FDCWD, "/usr/lib64/glibc-hwcaps/x86-64-v2/libselinux.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 5621] newfstatat(AT_FDCWD, "/usr/lib64/glibc-hwcaps/x86-64-v2/", 0x7fffc8532c10, 0) = -1 ENOENT (No such file or directory) [pid 5621] openat(AT_FDCWD, "/usr/lib64/libselinux.so.1", O_RDONLY|O_CLOEXEC) = 3 [pid 5621] read(3, "\x7f\x45\x4c\x46\x02\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x03\x00\x3e\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x40\x00\x00\x00\x00\x00\x00\x00\x60\xd1\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x40\x00\x38\x00\x0b\x00\x40\x00\x1d\x00\x1c\x00\x01\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x28\x74\x00\x00"..., 832) = 832 [pid 5621] fstat(3, {st_mode=S_IFREG|0755, st_size=186528, ...}) = 0 [pid 5621] mmap(NULL, 194256, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f6f0783d000 [pid 5621] mmap(0x7f6f07845000, 114688, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x8000) = 0x7f6f07845000 [pid 5621] mmap(0x7f6f07861000, 32768, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x24000) = 0x7f6f07861000 [pid 5621] mmap(0x7f6f07869000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x2c000) = 0x7f6f07869000 [pid 5621] mmap(0x7f6f0786b000, 5840, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7f6f0786b000 [pid 5621] close(3) = 0 [pid 5621] mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6f0783b000 [pid 5621] openat(AT_FDCWD, "/lib64/libatomic.so.1", O_RDONLY|O_CLOEXEC) = 3 [pid 5621] read(3, "\x7f\x45\x4c\x46\x02\x01\x01\x03\x00\x00\x00\x00\x00\x00\x00\x00\x03\x00\x3e\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x40\x00\x00\x00\x00\x00\x00\x00\x30\x71\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x40\x00\x38\x00\x0a\x00\x40\x00\x1b\x00\x1a\x00\x01\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x78\x1f\x00\x00"..., 832) = 832 [pid 5621] fstat(3, {st_mode=S_IFREG|0755, st_size=30704, ...}) = 0 [pid 5621] mmap(NULL, 37000, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f6f07831000 [pid 5621] mmap(0x7f6f07833000, 12288, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x2000) = 0x7f6f07833000 [pid 5621] mmap(0x7f6f07836000, 8192, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x5000) = 0x7f6f07836000 [pid 5621] mmap(0x7f6f07838000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x6000) = 0x7f6f07838000 [pid 5621] mmap(0x7f6f0783a000, 136, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7f6f0783a000 [pid 5621] close(3) = 0 [pid 5621] openat(AT_FDCWD, "/lib64/libpcre2-8.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 5621] openat(AT_FDCWD, "/usr/lib64/libpcre2-8.so.0", O_RDONLY|O_CLOEXEC) = 3 [pid 5621] read(3, "\x7f\x45\x4c\x46\x02\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x03\x00\x3e\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x40\x00\x00\x00\x00\x00\x00\x00\xf0\x00\x06\x00\x00\x00\x00\x00\x00\x00\x00\x00\x40\x00\x38\x00\x0a\x00\x40\x00\x1a\x00\x19\x00\x01\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xc8\x20\x00\x00"..., 832) = 832 [pid 5621] fstat(3, {st_mode=S_IFREG|0755, st_size=395120, ...}) = 0 [pid 5621] mmap(NULL, 397336, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f6f077cf000 [pid 5621] mmap(0x7f6f077d2000, 225280, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x3000) = 0x7f6f077d2000 [pid 5621] mmap(0x7f6f07809000, 155648, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x3a000) = 0x7f6f07809000 [pid 5621] mmap(0x7f6f0782f000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x5f000) = 0x7f6f0782f000 [pid 5621] close(3) = 0 [pid 5621] mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6f077cd000 [pid 5621] arch_prctl(ARCH_SET_FS, 0x7f6f077cdc80) = 0 [pid 5621] set_tid_address(0x7f6f077cdf50) = 5621 [pid 5621] set_robust_list(0x7f6f077cdf60, 24) = 0 [pid 5621] rseq({cpu_id_start=0, cpu_id=RSEQ_CPU_ID_UNINITIALIZED, rseq_cs=NULL, flags=0, node_id=0, mm_cid=0, slice_ctrl={request=0, granted=0, __reserved=0}, __reserved=0}, 33, 0, 0x53053053) = 0 [pid 5621] mprotect(0x7f6f07a63000, 16384, PROT_READ) = 0 [pid 5621] mprotect(0x7f6f0782f000, 4096, PROT_READ) = 0 [pid 5621] mprotect(0x7f6f07838000, 4096, PROT_READ) = 0 [pid 5621] mprotect(0x7f6f07869000, 4096, PROT_READ) = 0 [pid 5621] mprotect(0x7f6f0787a000, 4096, PROT_READ) = 0 [pid 5621] mprotect(0x7f6f07894000, 4096, PROT_READ) = 0 [pid 5621] mprotect(0x7f6f07883000, 4096, PROT_READ) = 0 [pid 5621] mprotect(0x7f6f07b34000, 12288, PROT_READ) = 0 [pid 5621] mprotect(0x56491d0b5000, 4096, PROT_READ) = 0 [pid 5621] mprotect(0x7f6f07b75000, 8192, PROT_READ) = 0 [pid 5621] prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 [pid 5621] statfs("/sys/fs/selinux", 0x7fffc8533a50) = -1 ENOENT (No such file or directory) [pid 5621] statfs("/selinux", 0x7fffc8533a50) = -1 ENOENT (No such file or directory) [pid 5621] getrandom("\x3d\x01\x49\x94\x42\xf1\x5b\xc6", 8, GRND_NONBLOCK) = 8 [pid 5621] brk(NULL) = 0x56494e6d4000 [pid 5621] brk(0x56494e6f5000) = 0x56494e6f5000 [pid 5621] openat(AT_FDCWD, "/proc/filesystems", O_RDONLY|O_CLOEXEC) = 3 [pid 5621] fstat(3, {st_mode=S_IFREG|0444, st_size=0, ...}) = 0 [pid 5621] read(3, "nodev\tsysfs\nnodev\ttmpfs\nnodev\tproc\nnodev\tcgroup\nnodev\tcgroup2\nnodev\tdevtmpfs\nnodev\tbinfmt_misc\nnodev"..., 1024) = 740 [pid 5621] read(3, "", 1024) = 0 [pid 5621] close(3) = 0 [pid 5621] access("/etc/selinux/config", F_OK) = 0 [pid 5621] openat(AT_FDCWD, "./swap-file", O_WRONLY) = 3 [pid 5621] lseek(3, 0, SEEK_END) = 128000000 [pid 5621] lseek(3, 0, SEEK_SET) = 0 [pid 5621] fstat(1, {st_mode=S_IFIFO|0600, st_size=0, ...}) = 0 [pid 5621] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1024) = 1024 [pid 5621] write(3, "\x01\x00\x00\x00\x11\x7a\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 516) = 516 [pid 5621] lseek(3, 4086, SEEK_SET) = 4086 [pid 5621] write(3, "SWAPSPACE2", 10) = 10 [pid 5621] fsync(3) = 0 Setting up swapspace version 1, size = 127995904 bytes [pid 5621] write(1, "Setting up swapspace version 1, size = 127995904 bytes\n", 55) = 55 [pid 5621] exit_group(0) = ? [pid 5621] +++ exited with 0 +++ rt_sigaction(SIGINT, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=SA_RESTORER, sa_restorer=0x7fc51c9680e0}, NULL, 8) = 0 rt_sigaction(SIGQUIT, {sa_handler=SIG_IGN, sa_mask=[], sa_flags=SA_RESTORER, sa_restorer=0x7fc51c9680e0}, NULL, 8) = 0 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5621, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- swapon("./swap-file", SWAP_FLAG_PREFER|0) = 0 getrandom("\xa4\xf2\x88\x7e\x96\xe0\x16\x8d", 8, GRND_NONBLOCK) = 8 mkdir("./syzkaller.C8SmJK", 0700) = 0 chmod("./syzkaller.C8SmJK", 0777) = 0 chdir("./syzkaller.C8SmJK") = 0 unshare(CLONE_NEWPID) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-linux-next-kasan-gce-root/strace-static-x86_64: Process 5622 attached , child_tidptr=0x55556a0c16d0) = 5622 [pid 5622] set_robust_list(0x55556a0c16e0, 24) = 0 [pid 5617] rt_sigprocmask(SIG_SETMASK, [] [pid 5622] rt_sigprocmask(SIG_SETMASK, [] [pid 5617] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5622] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5622] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5622] getppid() = 0 [pid 5622] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5622] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5622] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5622] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [ 75.069741][ T5617] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [pid 5622] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5622] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5622] unshare(CLONE_NEWNS) = 0 [pid 5622] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5622] unshare(CLONE_NEWIPC) = 0 [pid 5622] unshare(CLONE_NEWCGROUP) = 0 [pid 5622] unshare(CLONE_NEWUTS) = 0 [pid 5622] unshare(CLONE_SYSVSEM) = 0 [pid 5622] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5622] write(3, "16777216", 8) = 8 [pid 5622] close(3) = 0 [pid 5622] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5622] write(3, "536870912", 9) = 9 [pid 5622] close(3) = 0 [pid 5622] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5622] write(3, "1024", 4) = 4 [pid 5622] close(3) = 0 [pid 5622] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5622] write(3, "8192", 4) = 4 [pid 5622] close(3) = 0 [pid 5622] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5622] write(3, "1024", 4) = 4 [pid 5622] close(3) = 0 [pid 5622] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5622] write(3, "1024", 4) = 4 [pid 5622] close(3) = 0 [pid 5622] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5622] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5622] close(3) = 0 [pid 5622] getpid() = 1 [pid 5622] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1<i_mutex_dir_key#5){++++}-{4:4}, at: lookup_slow+0x46/0x80 [ 75.560309][ T5626] [ 75.560309][ T5626] but task is already holding lock: [ 75.567666][ T5626] ffff8880130b2fa0 (DCACHE_PAR_LOOKUP){+.+.}-{0:0}, at: __d_alloc_parallel+0x39e/0x1700 [ 75.577379][ T5626] [ 75.577379][ T5626] which lock already depends on the new lock. [ 75.577379][ T5626] [ 75.587758][ T5626] [ 75.587758][ T5626] the existing dependency chain (in reverse order) is: [ 75.596748][ T5626] [ 75.596748][ T5626] -> #1 (DCACHE_PAR_LOOKUP){+.+.}-{0:0}: [ 75.604541][ T5626] __d_alloc_parallel+0xc32/0x1700 [ 75.610158][ T5626] __lookup_slow+0x82/0x2f0 [ 75.615178][ T5626] lookup_slow+0x59/0x80 [ 75.619918][ T5626] link_path_walk+0xd22/0x1910 [ 75.625179][ T5626] path_openat+0x1c4/0x1da0 [ 75.630193][ T5626] do_file_open+0x23e/0x4a0 [ 75.635200][ T5626] do_sys_openat2+0x115/0x200 [ 75.640385][ T5626] __x64_sys_openat+0x138/0x170 [ 75.645744][ T5626] do_syscall_64+0x166/0x520 [ 75.650844][ T5626] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 75.657243][ T5626] [ 75.657243][ T5626] -> #0 (&type->i_mutex_dir_key#5){++++}-{4:4}: [ 75.665661][ T5626] __lock_acquire+0x164c/0x2de0 [ 75.671020][ T5626] lock_acquire+0x115/0x350 [ 75.676028][ T5626] down_read+0x45/0x320 [ 75.680690][ T5626] lookup_slow+0x46/0x80 [ 75.685436][ T5626] ovl_lookup_single+0x323/0xe90 [ 75.690880][ T5626] ovl_lookup_layer+0x377/0x440 [ 75.696232][ T5626] ovl_lookup+0x5e5/0x1c80 [ 75.701155][ T5626] __lookup_slow+0x1fb/0x2f0 [ 75.706337][ T5626] lookup_slow+0x59/0x80 [ 75.711085][ T5626] path_lookupat+0x3f5/0x8c0 [ 75.716178][ T5626] filename_lookup+0x265/0x5d0 [ 75.721447][ T5626] user_path_at+0x40/0x160 [ 75.726365][ T5626] __se_sys_mount+0x2dc/0x420 [ 75.731548][ T5626] do_syscall_64+0x166/0x520 [ 75.736642][ T5626] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 75.743042][ T5626] [ 75.743042][ T5626] other info that might help us debug this: [ 75.743042][ T5626] [ 75.753251][ T5626] Possible unsafe locking scenario: [ 75.753251][ T5626] [ 75.760687][ T5626] CPU0 CPU1 [ 75.766034][ T5626] ---- ---- [ 75.771385][ T5626] lock(DCACHE_PAR_LOOKUP); [ 75.775961][ T5626] lock(&type->i_mutex_dir_key#5); [ 75.783680][ T5626] lock(DCACHE_PAR_LOOKUP); [ 75.790773][ T5626] rlock(&type->i_mutex_dir_key#5); [ 75.796055][ T5626] [ 75.796055][ T5626] *** DEADLOCK *** [ 75.796055][ T5626] [ 75.804183][ T5626] locks held by syz-executor452/5626: 2, last CPU#0: [ 75.810842][ T5626] #0: ffff888070407438 (&ovl_i_mutex_dir_key[depth]){.+.+}-{4:4}, at: lookup_slow+0x46/0x80 [ 75.821011][ T5626] #1: ffff8880130b2fa0 (DCACHE_PAR_LOOKUP){+.+.}-{0:0}, at: __d_alloc_parallel+0x39e/0x1700 [ 75.831188][ T5626] [ 75.831188][ T5626] stack backtrace: [ 75.837085][ T5626] CPU: 0 UID: 0 PID: 5626 Comm: syz-executor452 Not tainted syzkaller #0 PREEMPT(full) [ 75.846791][ T5626] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 [ 75.856855][ T5626] Call Trace: [ 75.860132][ T5626] [ 75.863048][ T5626] dump_stack_lvl+0xe8/0x150 [ 75.867632][ T5626] print_circular_bug+0x2e2/0x300 [ 75.872648][ T5626] check_noncircular+0x12f/0x150 [ 75.877575][ T5626] __lock_acquire+0x164c/0x2de0 [ 75.882415][ T5626] ? lock_acquire+0x115/0x350 [ 75.887082][ T5626] lock_acquire+0x115/0x350 [ 75.891571][ T5626] ? lookup_slow+0x46/0x80 [ 75.895980][ T5626] down_read+0x45/0x320 [ 75.900121][ T5626] ? lookup_slow+0x46/0x80 [ 75.904523][ T5626] ? d_lookup+0x8a/0xa0 [ 75.908664][ T5626] lookup_slow+0x46/0x80 [ 75.912926][ T5626] ovl_lookup_single+0x323/0xe90 [ 75.917860][ T5626] ? __pfx_ovl_lookup_single+0x10/0x10 [ 75.923309][ T5626] ? __lock_acquire+0x747/0x2de0 [ 75.928250][ T5626] ovl_lookup_layer+0x377/0x440 [ 75.933094][ T5626] ovl_lookup+0x5e5/0x1c80 [ 75.937530][ T5626] ? lock_acquire+0x115/0x350 [ 75.942204][ T5626] ? __d_alloc_parallel+0x156f/0x1700 [ 75.947558][ T5626] ? __d_alloc_parallel+0x39e/0x1700 [ 75.952835][ T5626] ? __pfx_ovl_lookup+0x10/0x10 [ 75.957673][ T5626] ? __pfx___d_alloc_parallel+0x10/0x10 [ 75.963204][ T5626] ? lock_acquire+0x115/0x350 [ 75.967870][ T5626] __lookup_slow+0x1fb/0x2f0 [ 75.972444][ T5626] lookup_slow+0x59/0x80 [ 75.976675][ T5626] path_lookupat+0x3f5/0x8c0 [ 75.981292][ T5626] filename_lookup+0x265/0x5d0 [ 75.986046][ T5626] ? __pfx_filename_lookup+0x10/0x10 [ 75.991326][ T5626] ? strncpy_from_user+0x150/0x2c0 [ 75.996426][ T5626] ? do_getname+0x151/0x250 [ 76.000919][ T5626] user_path_at+0x40/0x160 [ 76.005327][ T5626] __se_sys_mount+0x2dc/0x420 [ 76.009994][ T5626] ? __pfx___se_sys_mount+0x10/0x10 [ 76.015178][ T5626] ? __x64_sys_mount+0x20/0xc0 [ 76.019926][ T5626] do_syscall_64+0x166/0x520 [ 76.024514][ T5626] ? trace_irq_disable+0x3b/0x140 [ 76.029541][ T5626] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 76.035601][ T5626] ? clear_bhb_loop+0x70/0xc0 [ 76.040274][ T5626] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 76.046169][ T5626] RIP: 0033:0x7fc51c9513a9 [ 76.050600][ T5626] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 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 d8 ff ff ff f7 d8 64 89 01 48 [ 76.070196][ T5626] RSP: 002b:00007ffd601b8708 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 76.078605][ T5626] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fc51c9513a9 [ 76.086566][ T5626] RDX: 0000000000000000 RSI: 0000200000000200 RDI: 0000000000000000 [ 76.094526][ T5626] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 76.102482][ T5626] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fc51c9b404a [ 76.110443][ T5626] R13: 00007ffd601b8740 R14: 00007ffd601b8780 R15: 0000000000000000 [pid 5626] mount(NULL, "./tracing", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 5626] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 3 [pid 5626] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 4 [pid 5626] close(3) = 0 [pid 5626] close(4) = 0 [pid 5626] close(5) = -1 EBADF (Bad file descriptor) [pid 5626] close(6) = -1 EBADF (Bad file descriptor) [pid 5626] close(7) = -1 EBADF (Bad file descriptor) [pid 5626] close(8) = -1 EBADF (Bad file descriptor) [pid 5626] close(9) = -1 EBADF (Bad file descriptor) [pid 5626] close(10) = -1 EBADF (Bad file descriptor) [pid 5626] close(11) = -1 EBADF (Bad file descriptor) [pid 5626] close(12) = -1 EBADF (Bad file descriptor) [pid 5626] close(13) = -1 EBADF (Bad file descriptor) [pid 5626] close(14) = -1 EBADF (Bad file descriptor) [pid 5626] close(15) = -1 EBADF (Bad file descriptor) [pid 5626] close(16) = -1 EBADF (Bad file descriptor) [pid 5626] close(17) = -1 EBADF (Bad file descriptor) [pid 5626] close(18) = -1 EBADF (Bad file descriptor) [pid 5626] close(19) = -1 EBADF (Bad file descriptor) [pid 5626] close(20) = -1 EBADF (Bad file descriptor) [pid 5626] close(21) = -1 EBADF (Bad file descriptor) [pid 5626] close(22) = -1 EBADF (Bad file descriptor) [pid 5626] close(23) = -1 EBADF (Bad file descriptor) [pid 5626] close(24) = -1 EBADF (Bad file descriptor) [pid 5626] close(25) = -1 EBADF (Bad file descriptor) [pid 5626] close(26) = -1 EBADF (Bad file descriptor) [pid 5626] close(27) = -1 EBADF (Bad file descriptor) [pid 5626] close(28) = -1 EBADF (Bad file descriptor) [pid 5626] close(29) = -1 EBADF (Bad file descriptor) [pid 5626] exit_group(0) = ? [pid 5626] +++ exited with 0 +++ [pid 5622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=2, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5622] restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 [pid 5622] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5622] fstat(3, {st_mode=S_IFDIR|0700, st_size=160, ...}) = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 8 entries */, 32768) = 232 [pid 5622] umount2("./0/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5622] umount2("./0/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 76.118409][ T5626] [pid 5622] newfstatat(AT_FDCWD, "./0/bus", {st_mode=S_IFDIR|000, st_size=80, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./0/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./0/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|000, st_size=80, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 4 entries */, 32768) = 104 [pid 5622] umount2("./0/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./0/bus/index", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./0/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./0/bus/index", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./0/bus/index") = 0 [pid 5622] umount2("./0/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./0/bus/work", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./0/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./0/bus/work", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./0/bus/work") = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./0/bus") = 0 [pid 5622] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./0/file0", {st_mode=S_IFDIR|0600, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|0600, st_size=40, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./0/file0") = 0 [pid 5622] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./0/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./0/binderfs") = 0 [pid 5622] umount2("./0/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./0/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./0/cgroup.net") = 0 [pid 5622] umount2("./0/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./0/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./0/cgroup.cpu") = 0 [pid 5622] umount2("./0/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./0/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./0/cgroup") = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 0 entries */, 32768) = 0 [pid 5622] close(3) = 0 [pid 5622] rmdir("./0") = 0 [pid 5622] mkdir("./1", 0777) = 0 [pid 5622] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-linux-next-kasan-gce-root/strace-static-x86_64: Process 5627 attached [pid 5627] set_robust_list(0x55556a0c16e0, 24 [pid 5622] <... clone resumed>, child_tidptr=0x55556a0c16d0) = 3 [pid 5627] <... set_robust_list resumed>) = 0 [pid 5627] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5622] rt_sigprocmask(SIG_SETMASK, [] [pid 5627] chdir("./1") = 0 [pid 5627] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5627] setpgid(0, 0) = 0 [pid 5627] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 5622] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5627] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5627] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 5627] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5627] write(3, "1000", 4) = 4 [pid 5627] close(3) = 0 [pid 5627] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5627] write(1, "executing program\n", 18) = 18 [pid 5627] mkdirat(AT_FDCWD, "./file0", 0601) = 0 [pid 5627] mkdirat(AT_FDCWD, "./bus", 000) = 0 [pid 5627] mount(NULL, "./bus", "overlay", MS_NOEXEC, "workdir=./bus,lowerdir=./cgroup,upperdir=./file0,") = 0 executing program [pid 5627] chdir("./bus") = 0 [pid 5627] mount(NULL, "./tracing", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 5627] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 3 [pid 5627] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 4 [pid 5627] close(3) = 0 [pid 5627] close(4) = 0 [pid 5627] close(5) = -1 EBADF (Bad file descriptor) [pid 5627] close(6) = -1 EBADF (Bad file descriptor) [pid 5627] close(7) = -1 EBADF (Bad file descriptor) [pid 5627] close(8) = -1 EBADF (Bad file descriptor) [pid 5627] close(9) = -1 EBADF (Bad file descriptor) [pid 5627] close(10) = -1 EBADF (Bad file descriptor) [pid 5627] close(11) = -1 EBADF (Bad file descriptor) [pid 5627] close(12) = -1 EBADF (Bad file descriptor) [pid 5627] close(13) = -1 EBADF (Bad file descriptor) [pid 5627] close(14) = -1 EBADF (Bad file descriptor) [pid 5627] close(15) = -1 EBADF (Bad file descriptor) [pid 5627] close(16) = -1 EBADF (Bad file descriptor) [pid 5627] close(17) = -1 EBADF (Bad file descriptor) [pid 5627] close(18) = -1 EBADF (Bad file descriptor) [pid 5627] close(19) = -1 EBADF (Bad file descriptor) [pid 5627] close(20) = -1 EBADF (Bad file descriptor) [pid 5627] close(21) = -1 EBADF (Bad file descriptor) [pid 5627] close(22) = -1 EBADF (Bad file descriptor) [pid 5627] close(23) = -1 EBADF (Bad file descriptor) [pid 5627] close(24) = -1 EBADF (Bad file descriptor) [pid 5627] close(25) = -1 EBADF (Bad file descriptor) [pid 5627] close(26) = -1 EBADF (Bad file descriptor) [pid 5627] close(27) = -1 EBADF (Bad file descriptor) [pid 5627] close(28) = -1 EBADF (Bad file descriptor) [pid 5627] close(29) = -1 EBADF (Bad file descriptor) [pid 5627] exit_group(0) = ? [pid 5627] +++ exited with 0 +++ [pid 5622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5622] restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 [pid 5622] umount2("./1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5622] fstat(3, {st_mode=S_IFDIR|0700, st_size=160, ...}) = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 8 entries */, 32768) = 232 [pid 5622] umount2("./1/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5622] umount2("./1/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./1/bus", {st_mode=S_IFDIR|000, st_size=80, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./1/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./1/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|000, st_size=80, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 4 entries */, 32768) = 104 [pid 5622] umount2("./1/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./1/bus/index", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./1/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./1/bus/index", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./1/bus/index") = 0 [pid 5622] umount2("./1/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./1/bus/work", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./1/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./1/bus/work", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./1/bus/work") = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./1/bus") = 0 [pid 5622] umount2("./1/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./1/file0", {st_mode=S_IFDIR|0600, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./1/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./1/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|0600, st_size=40, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./1/file0") = 0 [pid 5622] umount2("./1/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./1/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./1/binderfs") = 0 [pid 5622] umount2("./1/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./1/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./1/cgroup.net") = 0 [pid 5622] umount2("./1/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./1/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./1/cgroup.cpu") = 0 [pid 5622] umount2("./1/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./1/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./1/cgroup") = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 0 entries */, 32768) = 0 [pid 5622] close(3) = 0 [pid 5622] rmdir("./1") = 0 [pid 5622] mkdir("./2", 0777) = 0 [pid 5622] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-linux-next-kasan-gce-root/strace-static-x86_64: Process 5628 attached , child_tidptr=0x55556a0c16d0) = 4 [pid 5628] set_robust_list(0x55556a0c16e0, 24) = 0 [pid 5628] rt_sigprocmask(SIG_SETMASK, [] [pid 5622] rt_sigprocmask(SIG_SETMASK, [] [pid 5628] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5622] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5628] chdir("./2") = 0 [pid 5628] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5628] setpgid(0, 0) = 0 [pid 5628] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 5628] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5628] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 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 executing program [pid 5628] write(1, "executing program\n", 18) = 18 [pid 5628] mkdirat(AT_FDCWD, "./file0", 0601) = 0 [pid 5628] mkdirat(AT_FDCWD, "./bus", 000) = 0 [pid 5628] mount(NULL, "./bus", "overlay", MS_NOEXEC, "workdir=./bus,lowerdir=./cgroup,upperdir=./file0,") = 0 [pid 5628] chdir("./bus") = 0 [pid 5628] mount(NULL, "./tracing", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 5628] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 3 [pid 5628] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 4 [pid 5628] close(3) = 0 [pid 5628] close(4) = 0 [pid 5628] close(5) = -1 EBADF (Bad file descriptor) [pid 5628] close(6) = -1 EBADF (Bad file descriptor) [pid 5628] close(7) = -1 EBADF (Bad file descriptor) [pid 5628] close(8) = -1 EBADF (Bad file descriptor) [pid 5628] close(9) = -1 EBADF (Bad file descriptor) [pid 5628] close(10) = -1 EBADF (Bad file descriptor) [pid 5628] close(11) = -1 EBADF (Bad file descriptor) [pid 5628] close(12) = -1 EBADF (Bad file descriptor) [pid 5628] close(13) = -1 EBADF (Bad file descriptor) [pid 5628] close(14) = -1 EBADF (Bad file descriptor) [pid 5628] close(15) = -1 EBADF (Bad file descriptor) [pid 5628] close(16) = -1 EBADF (Bad file descriptor) [pid 5628] close(17) = -1 EBADF (Bad file descriptor) [pid 5628] close(18) = -1 EBADF (Bad file descriptor) [pid 5628] close(19) = -1 EBADF (Bad file descriptor) [pid 5628] close(20) = -1 EBADF (Bad file descriptor) [pid 5628] close(21) = -1 EBADF (Bad file descriptor) [pid 5628] close(22) = -1 EBADF (Bad file descriptor) [pid 5628] close(23) = -1 EBADF (Bad file descriptor) [pid 5628] close(24) = -1 EBADF (Bad file descriptor) [pid 5628] close(25) = -1 EBADF (Bad file descriptor) [pid 5628] close(26) = -1 EBADF (Bad file descriptor) [pid 5628] close(27) = -1 EBADF (Bad file descriptor) [pid 5628] close(28) = -1 EBADF (Bad file descriptor) [pid 5628] close(29) = -1 EBADF (Bad file descriptor) [pid 5628] exit_group(0) = ? [pid 5628] +++ exited with 0 +++ [pid 5622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5622] restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 [pid 5622] umount2("./2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5622] fstat(3, {st_mode=S_IFDIR|0700, st_size=160, ...}) = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 8 entries */, 32768) = 232 [pid 5622] umount2("./2/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5622] umount2("./2/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./2/bus", {st_mode=S_IFDIR|000, st_size=80, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./2/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./2/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|000, st_size=80, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 4 entries */, 32768) = 104 [pid 5622] umount2("./2/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./2/bus/index", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./2/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./2/bus/index", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./2/bus/index") = 0 [pid 5622] umount2("./2/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./2/bus/work", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./2/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./2/bus/work", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./2/bus/work") = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./2/bus") = 0 [pid 5622] umount2("./2/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./2/file0", {st_mode=S_IFDIR|0600, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./2/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./2/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|0600, st_size=40, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./2/file0") = 0 [pid 5622] umount2("./2/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./2/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./2/binderfs") = 0 [pid 5622] umount2("./2/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./2/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./2/cgroup.net") = 0 [pid 5622] umount2("./2/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./2/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./2/cgroup.cpu") = 0 [pid 5622] umount2("./2/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./2/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./2/cgroup") = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 0 entries */, 32768) = 0 [pid 5622] close(3) = 0 [pid 5622] rmdir("./2") = 0 [pid 5622] mkdir("./3", 0777) = 0 [pid 5622] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-linux-next-kasan-gce-root/strace-static-x86_64: Process 5630 attached , child_tidptr=0x55556a0c16d0) = 5 [pid 5630] set_robust_list(0x55556a0c16e0, 24) = 0 [pid 5622] rt_sigprocmask(SIG_SETMASK, [] [pid 5630] rt_sigprocmask(SIG_SETMASK, [] [pid 5622] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5630] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5630] chdir("./3") = 0 [pid 5630] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5630] setpgid(0, 0) = 0 [pid 5630] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 5630] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5630] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 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 executing program [pid 5630] write(1, "executing program\n", 18) = 18 [pid 5630] mkdirat(AT_FDCWD, "./file0", 0601) = 0 [pid 5630] mkdirat(AT_FDCWD, "./bus", 000) = 0 [pid 5630] mount(NULL, "./bus", "overlay", MS_NOEXEC, "workdir=./bus,lowerdir=./cgroup,upperdir=./file0,") = 0 [pid 5630] chdir("./bus") = 0 [pid 5630] mount(NULL, "./tracing", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 5630] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 3 [pid 5630] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 4 [pid 5630] close(3) = 0 [pid 5630] close(4) = 0 [pid 5630] close(5) = -1 EBADF (Bad file descriptor) [pid 5630] close(6) = -1 EBADF (Bad file descriptor) [pid 5630] close(7) = -1 EBADF (Bad file descriptor) [pid 5630] close(8) = -1 EBADF (Bad file descriptor) [pid 5630] close(9) = -1 EBADF (Bad file descriptor) [pid 5630] close(10) = -1 EBADF (Bad file descriptor) [pid 5630] close(11) = -1 EBADF (Bad file descriptor) [pid 5630] close(12) = -1 EBADF (Bad file descriptor) [pid 5630] close(13) = -1 EBADF (Bad file descriptor) [pid 5630] close(14) = -1 EBADF (Bad file descriptor) [pid 5630] close(15) = -1 EBADF (Bad file descriptor) [pid 5630] close(16) = -1 EBADF (Bad file descriptor) [pid 5630] close(17) = -1 EBADF (Bad file descriptor) [pid 5630] close(18) = -1 EBADF (Bad file descriptor) [pid 5630] close(19) = -1 EBADF (Bad file descriptor) [pid 5630] close(20) = -1 EBADF (Bad file descriptor) [pid 5630] close(21) = -1 EBADF (Bad file descriptor) [pid 5630] close(22) = -1 EBADF (Bad file descriptor) [pid 5630] close(23) = -1 EBADF (Bad file descriptor) [pid 5630] close(24) = -1 EBADF (Bad file descriptor) [pid 5630] close(25) = -1 EBADF (Bad file descriptor) [pid 5630] close(26) = -1 EBADF (Bad file descriptor) [pid 5630] close(27) = -1 EBADF (Bad file descriptor) [pid 5630] close(28) = -1 EBADF (Bad file descriptor) [pid 5630] close(29) = -1 EBADF (Bad file descriptor) [pid 5630] exit_group(0) = ? [pid 5630] +++ exited with 0 +++ [pid 5622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5622] restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 [pid 5622] umount2("./3", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5622] fstat(3, {st_mode=S_IFDIR|0700, st_size=160, ...}) = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 8 entries */, 32768) = 232 [pid 5622] umount2("./3/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5622] umount2("./3/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./3/bus", {st_mode=S_IFDIR|000, st_size=80, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./3/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./3/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|000, st_size=80, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 4 entries */, 32768) = 104 [pid 5622] umount2("./3/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./3/bus/index", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./3/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./3/bus/index", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./3/bus/index") = 0 [pid 5622] umount2("./3/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./3/bus/work", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./3/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./3/bus/work", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./3/bus/work") = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./3/bus") = 0 [pid 5622] umount2("./3/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./3/file0", {st_mode=S_IFDIR|0600, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./3/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./3/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|0600, st_size=40, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./3/file0") = 0 [pid 5622] umount2("./3/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./3/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./3/binderfs") = 0 [pid 5622] umount2("./3/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./3/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./3/cgroup.net") = 0 [pid 5622] umount2("./3/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./3/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./3/cgroup.cpu") = 0 [pid 5622] umount2("./3/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./3/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./3/cgroup") = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 0 entries */, 32768) = 0 [pid 5622] close(3) = 0 [pid 5622] rmdir("./3") = 0 [pid 5622] mkdir("./4", 0777) = 0 [pid 5622] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556a0c16d0) = 6 ci-upstream-linux-next-kasan-gce-root/strace-static-x86_64: Process 5631 attached [pid 5622] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5631] set_robust_list(0x55556a0c16e0, 24) = 0 [pid 5631] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5631] chdir("./4") = 0 [pid 5631] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5631] setpgid(0, 0) = 0 [pid 5631] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 5631] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5631] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 5631] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5631] write(3, "1000", 4) = 4 [pid 5631] close(3) = 0 [pid 5631] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5631] write(1, "executing program\n", 18) = 18 [pid 5631] mkdirat(AT_FDCWD, "./file0", 0601) = 0 [pid 5631] mkdirat(AT_FDCWD, "./bus", 000) = 0 [pid 5631] mount(NULL, "./bus", "overlay", MS_NOEXEC, "workdir=./bus,lowerdir=./cgroup,upperdir=./file0,") = 0 [pid 5631] chdir("./bus") = 0 [pid 5631] mount(NULL, "./tracing", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 5631] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 3 [pid 5631] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 4 [pid 5631] close(3) = 0 [pid 5631] close(4) = 0 [pid 5631] close(5) = -1 EBADF (Bad file descriptor) [pid 5631] close(6) = -1 EBADF (Bad file descriptor) [pid 5631] close(7) = -1 EBADF (Bad file descriptor) [pid 5631] close(8) = -1 EBADF (Bad file descriptor) [pid 5631] close(9) = -1 EBADF (Bad file descriptor) [pid 5631] close(10) = -1 EBADF (Bad file descriptor) [pid 5631] close(11) = -1 EBADF (Bad file descriptor) [pid 5631] close(12) = -1 EBADF (Bad file descriptor) [pid 5631] close(13) = -1 EBADF (Bad file descriptor) [pid 5631] close(14) = -1 EBADF (Bad file descriptor) [pid 5631] close(15) = -1 EBADF (Bad file descriptor) [pid 5631] close(16) = -1 EBADF (Bad file descriptor) [pid 5631] close(17) = -1 EBADF (Bad file descriptor) [pid 5631] close(18) = -1 EBADF (Bad file descriptor) [pid 5631] close(19) = -1 EBADF (Bad file descriptor) [pid 5631] close(20) = -1 EBADF (Bad file descriptor) [pid 5631] close(21) = -1 EBADF (Bad file descriptor) [pid 5631] close(22) = -1 EBADF (Bad file descriptor) [pid 5631] close(23) = -1 EBADF (Bad file descriptor) [pid 5631] close(24) = -1 EBADF (Bad file descriptor) [pid 5631] close(25) = -1 EBADF (Bad file descriptor) [pid 5631] close(26) = -1 EBADF (Bad file descriptor) [pid 5631] close(27) = -1 EBADF (Bad file descriptor) [pid 5631] close(28) = -1 EBADF (Bad file descriptor) [pid 5631] close(29) = -1 EBADF (Bad file descriptor) [pid 5631] exit_group(0) = ? [pid 5631] +++ exited with 0 +++ [pid 5622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5622] restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 [pid 5622] umount2("./4", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5622] fstat(3, {st_mode=S_IFDIR|0700, st_size=160, ...}) = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 8 entries */, 32768) = 232 [pid 5622] umount2("./4/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5622] umount2("./4/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./4/bus", {st_mode=S_IFDIR|000, st_size=80, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./4/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./4/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|000, st_size=80, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 4 entries */, 32768) = 104 [pid 5622] umount2("./4/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./4/bus/index", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./4/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./4/bus/index", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./4/bus/index") = 0 [pid 5622] umount2("./4/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./4/bus/work", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./4/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./4/bus/work", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./4/bus/work") = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./4/bus") = 0 [pid 5622] umount2("./4/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./4/file0", {st_mode=S_IFDIR|0600, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./4/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./4/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|0600, st_size=40, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./4/file0") = 0 [pid 5622] umount2("./4/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./4/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./4/binderfs") = 0 [pid 5622] umount2("./4/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./4/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./4/cgroup.net") = 0 [pid 5622] umount2("./4/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./4/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./4/cgroup.cpu") = 0 [pid 5622] umount2("./4/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./4/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./4/cgroup") = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 0 entries */, 32768) = 0 [pid 5622] close(3) = 0 [pid 5622] rmdir("./4") = 0 [pid 5622] mkdir("./5", 0777) = 0 [pid 5622] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-linux-next-kasan-gce-root/strace-static-x86_64: Process 5633 attached [pid 5633] set_robust_list(0x55556a0c16e0, 24 [pid 5622] <... clone resumed>, child_tidptr=0x55556a0c16d0) = 7 [pid 5633] <... set_robust_list resumed>) = 0 [pid 5633] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5622] rt_sigprocmask(SIG_SETMASK, [] [pid 5633] chdir("./5" [pid 5622] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5633] <... chdir resumed>) = 0 [pid 5633] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5633] setpgid(0, 0) = 0 [pid 5633] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 5633] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5633] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 5633] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5633] write(3, "1000", 4) = 4 [pid 5633] close(3) = 0 [pid 5633] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5633] write(1, "executing program\n", 18) = 18 [pid 5633] mkdirat(AT_FDCWD, "./file0", 0601) = 0 [pid 5633] mkdirat(AT_FDCWD, "./bus", 000) = 0 [pid 5633] mount(NULL, "./bus", "overlay", MS_NOEXEC, "workdir=./bus,lowerdir=./cgroup,upperdir=./file0,") = 0 [pid 5633] chdir("./bus") = 0 [pid 5633] mount(NULL, "./tracing", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 5633] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 3 [pid 5633] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 4 [pid 5633] close(3) = 0 [pid 5633] close(4) = 0 [pid 5633] close(5) = -1 EBADF (Bad file descriptor) [pid 5633] close(6) = -1 EBADF (Bad file descriptor) [pid 5633] close(7) = -1 EBADF (Bad file descriptor) [pid 5633] close(8) = -1 EBADF (Bad file descriptor) [pid 5633] close(9) = -1 EBADF (Bad file descriptor) executing program [pid 5633] close(10) = -1 EBADF (Bad file descriptor) [pid 5633] close(11) = -1 EBADF (Bad file descriptor) [pid 5633] close(12) = -1 EBADF (Bad file descriptor) [pid 5633] close(13) = -1 EBADF (Bad file descriptor) [pid 5633] close(14) = -1 EBADF (Bad file descriptor) [pid 5633] close(15) = -1 EBADF (Bad file descriptor) [pid 5633] close(16) = -1 EBADF (Bad file descriptor) [pid 5633] close(17) = -1 EBADF (Bad file descriptor) [pid 5633] close(18) = -1 EBADF (Bad file descriptor) [pid 5633] close(19) = -1 EBADF (Bad file descriptor) [pid 5633] close(20) = -1 EBADF (Bad file descriptor) [pid 5633] close(21) = -1 EBADF (Bad file descriptor) [pid 5633] close(22) = -1 EBADF (Bad file descriptor) [pid 5633] close(23) = -1 EBADF (Bad file descriptor) [pid 5633] close(24) = -1 EBADF (Bad file descriptor) [pid 5633] close(25) = -1 EBADF (Bad file descriptor) [pid 5633] close(26) = -1 EBADF (Bad file descriptor) [pid 5633] close(27) = -1 EBADF (Bad file descriptor) [pid 5633] close(28) = -1 EBADF (Bad file descriptor) [pid 5633] close(29) = -1 EBADF (Bad file descriptor) [pid 5633] exit_group(0) = ? [pid 5633] +++ exited with 0 +++ [pid 5622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5622] restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 [pid 5622] umount2("./5", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5622] fstat(3, {st_mode=S_IFDIR|0700, st_size=160, ...}) = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 8 entries */, 32768) = 232 [pid 5622] umount2("./5/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5622] umount2("./5/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./5/bus", {st_mode=S_IFDIR|000, st_size=80, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./5/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./5/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|000, st_size=80, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 4 entries */, 32768) = 104 [pid 5622] umount2("./5/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./5/bus/index", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./5/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./5/bus/index", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./5/bus/index") = 0 [pid 5622] umount2("./5/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./5/bus/work", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./5/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./5/bus/work", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./5/bus/work") = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./5/bus") = 0 [pid 5622] umount2("./5/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./5/file0", {st_mode=S_IFDIR|0600, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./5/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./5/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|0600, st_size=40, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./5/file0") = 0 [pid 5622] umount2("./5/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./5/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./5/binderfs") = 0 [pid 5622] umount2("./5/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./5/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./5/cgroup.net") = 0 [pid 5622] umount2("./5/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./5/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./5/cgroup.cpu") = 0 [pid 5622] umount2("./5/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./5/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./5/cgroup") = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 0 entries */, 32768) = 0 [pid 5622] close(3) = 0 [pid 5622] rmdir("./5") = 0 [pid 5622] mkdir("./6", 0777) = 0 [pid 5622] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-linux-next-kasan-gce-root/strace-static-x86_64: Process 5634 attached [pid 5634] set_robust_list(0x55556a0c16e0, 24 [pid 5622] <... clone resumed>, child_tidptr=0x55556a0c16d0) = 8 [pid 5634] <... set_robust_list resumed>) = 0 [pid 5634] rt_sigprocmask(SIG_SETMASK, [] [pid 5622] rt_sigprocmask(SIG_SETMASK, [] [pid 5634] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5634] chdir("./6" [pid 5622] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5634] <... chdir resumed>) = 0 [pid 5634] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5634] setpgid(0, 0) = 0 [pid 5634] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 5634] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5634] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 5634] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5634] write(3, "1000", 4) = 4 [pid 5634] close(3) = 0 [pid 5634] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5634] write(1, "executing program\n", 18) = 18 executing program [pid 5634] mkdirat(AT_FDCWD, "./file0", 0601) = 0 [pid 5634] mkdirat(AT_FDCWD, "./bus", 000) = 0 [pid 5634] mount(NULL, "./bus", "overlay", MS_NOEXEC, "workdir=./bus,lowerdir=./cgroup,upperdir=./file0,") = 0 [pid 5634] chdir("./bus") = 0 [pid 5634] mount(NULL, "./tracing", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 5634] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 3 [pid 5634] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 4 [pid 5634] close(3) = 0 [pid 5634] close(4) = 0 [pid 5634] close(5) = -1 EBADF (Bad file descriptor) [pid 5634] close(6) = -1 EBADF (Bad file descriptor) [pid 5634] close(7) = -1 EBADF (Bad file descriptor) [pid 5634] close(8) = -1 EBADF (Bad file descriptor) [pid 5634] close(9) = -1 EBADF (Bad file descriptor) [pid 5634] close(10) = -1 EBADF (Bad file descriptor) [pid 5634] close(11) = -1 EBADF (Bad file descriptor) [pid 5634] close(12) = -1 EBADF (Bad file descriptor) [pid 5634] close(13) = -1 EBADF (Bad file descriptor) [pid 5634] close(14) = -1 EBADF (Bad file descriptor) [pid 5634] close(15) = -1 EBADF (Bad file descriptor) [pid 5634] close(16) = -1 EBADF (Bad file descriptor) [pid 5634] close(17) = -1 EBADF (Bad file descriptor) [pid 5634] close(18) = -1 EBADF (Bad file descriptor) [pid 5634] close(19) = -1 EBADF (Bad file descriptor) [pid 5634] close(20) = -1 EBADF (Bad file descriptor) [pid 5634] close(21) = -1 EBADF (Bad file descriptor) [pid 5634] close(22) = -1 EBADF (Bad file descriptor) [pid 5634] close(23) = -1 EBADF (Bad file descriptor) [pid 5634] close(24) = -1 EBADF (Bad file descriptor) [pid 5634] close(25) = -1 EBADF (Bad file descriptor) [pid 5634] close(26) = -1 EBADF (Bad file descriptor) [pid 5634] close(27) = -1 EBADF (Bad file descriptor) [pid 5634] close(28) = -1 EBADF (Bad file descriptor) [pid 5634] close(29) = -1 EBADF (Bad file descriptor) [pid 5634] exit_group(0) = ? [pid 5634] +++ exited with 0 +++ [pid 5622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5622] restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 [pid 5622] umount2("./6", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5622] fstat(3, {st_mode=S_IFDIR|0700, st_size=160, ...}) = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 8 entries */, 32768) = 232 [pid 5622] umount2("./6/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5622] umount2("./6/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./6/bus", {st_mode=S_IFDIR|000, st_size=80, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./6/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./6/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|000, st_size=80, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 4 entries */, 32768) = 104 [pid 5622] umount2("./6/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./6/bus/index", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./6/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./6/bus/index", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./6/bus/index") = 0 [pid 5622] umount2("./6/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./6/bus/work", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./6/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./6/bus/work", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./6/bus/work") = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./6/bus") = 0 [pid 5622] umount2("./6/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./6/file0", {st_mode=S_IFDIR|0600, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./6/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./6/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|0600, st_size=40, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./6/file0") = 0 [pid 5622] umount2("./6/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./6/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./6/binderfs") = 0 [pid 5622] umount2("./6/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./6/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./6/cgroup.net") = 0 [pid 5622] umount2("./6/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./6/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./6/cgroup.cpu") = 0 [pid 5622] umount2("./6/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./6/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./6/cgroup") = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 0 entries */, 32768) = 0 [pid 5622] close(3) = 0 [pid 5622] rmdir("./6") = 0 [pid 5622] mkdir("./7", 0777) = 0 [pid 5622] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-linux-next-kasan-gce-root/strace-static-x86_64: Process 5637 attached , child_tidptr=0x55556a0c16d0) = 9 [pid 5622] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5637] set_robust_list(0x55556a0c16e0, 24) = 0 [pid 5637] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5637] chdir("./7") = 0 [pid 5637] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5637] setpgid(0, 0) = 0 [pid 5637] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 5637] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5637] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 5637] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5637] write(3, "1000", 4) = 4 [pid 5637] close(3) = 0 executing program [pid 5637] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5637] write(1, "executing program\n", 18) = 18 [pid 5637] mkdirat(AT_FDCWD, "./file0", 0601) = 0 [pid 5637] mkdirat(AT_FDCWD, "./bus", 000) = 0 [pid 5637] mount(NULL, "./bus", "overlay", MS_NOEXEC, "workdir=./bus,lowerdir=./cgroup,upperdir=./file0,") = 0 [pid 5637] chdir("./bus") = 0 [pid 5637] mount(NULL, "./tracing", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 5637] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 3 [pid 5637] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 4 [pid 5637] close(3) = 0 [pid 5637] close(4) = 0 [pid 5637] close(5) = -1 EBADF (Bad file descriptor) [pid 5637] close(6) = -1 EBADF (Bad file descriptor) [pid 5637] close(7) = -1 EBADF (Bad file descriptor) [pid 5637] close(8) = -1 EBADF (Bad file descriptor) [pid 5637] close(9) = -1 EBADF (Bad file descriptor) [pid 5637] close(10) = -1 EBADF (Bad file descriptor) [pid 5637] close(11) = -1 EBADF (Bad file descriptor) [pid 5637] close(12) = -1 EBADF (Bad file descriptor) [pid 5637] close(13) = -1 EBADF (Bad file descriptor) [pid 5637] close(14) = -1 EBADF (Bad file descriptor) [pid 5637] close(15) = -1 EBADF (Bad file descriptor) [pid 5637] close(16) = -1 EBADF (Bad file descriptor) [pid 5637] close(17) = -1 EBADF (Bad file descriptor) [pid 5637] close(18) = -1 EBADF (Bad file descriptor) [pid 5637] close(19) = -1 EBADF (Bad file descriptor) [pid 5637] close(20) = -1 EBADF (Bad file descriptor) [pid 5637] close(21) = -1 EBADF (Bad file descriptor) [pid 5637] close(22) = -1 EBADF (Bad file descriptor) [pid 5637] close(23) = -1 EBADF (Bad file descriptor) [pid 5637] close(24) = -1 EBADF (Bad file descriptor) [pid 5637] close(25) = -1 EBADF (Bad file descriptor) [pid 5637] close(26) = -1 EBADF (Bad file descriptor) [pid 5637] close(27) = -1 EBADF (Bad file descriptor) [pid 5637] close(28) = -1 EBADF (Bad file descriptor) [pid 5637] close(29) = -1 EBADF (Bad file descriptor) [pid 5637] exit_group(0) = ? [pid 5637] +++ exited with 0 +++ [pid 5622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5622] restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 [pid 5622] umount2("./7", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5622] fstat(3, {st_mode=S_IFDIR|0700, st_size=160, ...}) = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 8 entries */, 32768) = 232 [pid 5622] umount2("./7/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5622] umount2("./7/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./7/bus", {st_mode=S_IFDIR|000, st_size=80, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./7/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./7/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|000, st_size=80, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 4 entries */, 32768) = 104 [pid 5622] umount2("./7/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./7/bus/index", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./7/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./7/bus/index", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./7/bus/index") = 0 [pid 5622] umount2("./7/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./7/bus/work", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./7/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./7/bus/work", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./7/bus/work") = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./7/bus") = 0 [pid 5622] umount2("./7/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./7/file0", {st_mode=S_IFDIR|0600, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./7/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./7/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|0600, st_size=40, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./7/file0") = 0 [pid 5622] umount2("./7/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./7/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./7/binderfs") = 0 [pid 5622] umount2("./7/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./7/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./7/cgroup.net") = 0 [pid 5622] umount2("./7/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./7/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./7/cgroup.cpu") = 0 [pid 5622] umount2("./7/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./7/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./7/cgroup") = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 0 entries */, 32768) = 0 [pid 5622] close(3) = 0 [pid 5622] rmdir("./7") = 0 [pid 5622] mkdir("./8", 0777) = 0 [pid 5622] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-linux-next-kasan-gce-root/strace-static-x86_64: Process 5638 attached , child_tidptr=0x55556a0c16d0) = 10 [pid 5638] set_robust_list(0x55556a0c16e0, 24 [pid 5622] rt_sigprocmask(SIG_SETMASK, [] [pid 5638] <... set_robust_list resumed>) = 0 [pid 5622] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5638] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5638] chdir("./8") = 0 [pid 5638] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5638] setpgid(0, 0) = 0 [pid 5638] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 5638] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5638] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 5638] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5638] write(3, "1000", 4) = 4 [pid 5638] close(3) = 0 [pid 5638] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5638] write(1, "executing program\n", 18) = 18 [pid 5638] mkdirat(AT_FDCWD, "./file0", 0601) = 0 [pid 5638] mkdirat(AT_FDCWD, "./bus", 000) = 0 [pid 5638] mount(NULL, "./bus", "overlay", MS_NOEXEC, "workdir=./bus,lowerdir=./cgroup,upperdir=./file0,") = 0 [pid 5638] chdir("./bus") = 0 [pid 5638] mount(NULL, "./tracing", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 5638] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 3 [pid 5638] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 4 [pid 5638] close(3) = 0 [pid 5638] close(4) = 0 [pid 5638] close(5) = -1 EBADF (Bad file descriptor) [pid 5638] close(6) = -1 EBADF (Bad file descriptor) [pid 5638] close(7) = -1 EBADF (Bad file descriptor) [pid 5638] close(8) = -1 EBADF (Bad file descriptor) [pid 5638] close(9) = -1 EBADF (Bad file descriptor) [pid 5638] close(10) = -1 EBADF (Bad file descriptor) [pid 5638] close(11) = -1 EBADF (Bad file descriptor) [pid 5638] close(12) = -1 EBADF (Bad file descriptor) [pid 5638] close(13) = -1 EBADF (Bad file descriptor) [pid 5638] close(14) = -1 EBADF (Bad file descriptor) [pid 5638] close(15) = -1 EBADF (Bad file descriptor) [pid 5638] close(16) = -1 EBADF (Bad file descriptor) [pid 5638] close(17) = -1 EBADF (Bad file descriptor) [pid 5638] close(18) = -1 EBADF (Bad file descriptor) [pid 5638] close(19) = -1 EBADF (Bad file descriptor) [pid 5638] close(20) = -1 EBADF (Bad file descriptor) [pid 5638] close(21) = -1 EBADF (Bad file descriptor) [pid 5638] close(22) = -1 EBADF (Bad file descriptor) [pid 5638] close(23) = -1 EBADF (Bad file descriptor) [pid 5638] close(24) = -1 EBADF (Bad file descriptor) [pid 5638] close(25) = -1 EBADF (Bad file descriptor) [pid 5638] close(26) = -1 EBADF (Bad file descriptor) [pid 5638] close(27) = -1 EBADF (Bad file descriptor) [pid 5638] close(28) = -1 EBADF (Bad file descriptor) [pid 5638] close(29) = -1 EBADF (Bad file descriptor) [pid 5638] exit_group(0) = ? [pid 5638] +++ exited with 0 +++ [pid 5622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5622] restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 [pid 5622] umount2("./8", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./8", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5622] fstat(3, {st_mode=S_IFDIR|0700, st_size=160, ...}) = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 8 entries */, 32768) = 232 [pid 5622] umount2("./8/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5622] umount2("./8/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./8/bus", {st_mode=S_IFDIR|000, st_size=80, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./8/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./8/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|000, st_size=80, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 4 entries */, 32768) = 104 [pid 5622] umount2("./8/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./8/bus/index", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./8/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./8/bus/index", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./8/bus/index") = 0 [pid 5622] umount2("./8/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./8/bus/work", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./8/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./8/bus/work", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./8/bus/work") = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./8/bus") = 0 [pid 5622] umount2("./8/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./8/file0", {st_mode=S_IFDIR|0600, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./8/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./8/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|0600, st_size=40, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./8/file0") = 0 [pid 5622] umount2("./8/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./8/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./8/binderfs") = 0 [pid 5622] umount2("./8/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./8/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./8/cgroup.net") = 0 [pid 5622] umount2("./8/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./8/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./8/cgroup.cpu") = 0 [pid 5622] umount2("./8/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./8/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./8/cgroup") = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 0 entries */, 32768) = 0 [pid 5622] close(3) = 0 [pid 5622] rmdir("./8") = 0 [pid 5622] mkdir("./9", 0777) = 0 [pid 5622] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-linux-next-kasan-gce-root/strace-static-x86_64: Process 5639 attached , child_tidptr=0x55556a0c16d0) = 11 [pid 5639] set_robust_list(0x55556a0c16e0, 24) = 0 [pid 5622] rt_sigprocmask(SIG_SETMASK, [] [pid 5639] rt_sigprocmask(SIG_SETMASK, [] [pid 5622] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5639] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5639] chdir("./9") = 0 [pid 5639] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5639] setpgid(0, 0) = 0 [pid 5639] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 5639] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5639] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 5639] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5639] write(3, "1000", 4) = 4 [pid 5639] close(3) = 0 [pid 5639] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5639] write(1, "executing program\n", 18) = 18 executing program [pid 5639] mkdirat(AT_FDCWD, "./file0", 0601) = 0 [pid 5639] mkdirat(AT_FDCWD, "./bus", 000) = 0 [pid 5639] mount(NULL, "./bus", "overlay", MS_NOEXEC, "workdir=./bus,lowerdir=./cgroup,upperdir=./file0,") = 0 [pid 5639] chdir("./bus") = 0 [pid 5639] mount(NULL, "./tracing", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 5639] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 3 [pid 5639] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 4 [pid 5639] close(3) = 0 [pid 5639] close(4) = 0 [pid 5639] close(5) = -1 EBADF (Bad file descriptor) [pid 5639] close(6) = -1 EBADF (Bad file descriptor) [pid 5639] close(7) = -1 EBADF (Bad file descriptor) [pid 5639] close(8) = -1 EBADF (Bad file descriptor) [pid 5639] close(9) = -1 EBADF (Bad file descriptor) [pid 5639] close(10) = -1 EBADF (Bad file descriptor) [pid 5639] close(11) = -1 EBADF (Bad file descriptor) [pid 5639] close(12) = -1 EBADF (Bad file descriptor) [pid 5639] close(13) = -1 EBADF (Bad file descriptor) [pid 5639] close(14) = -1 EBADF (Bad file descriptor) [pid 5639] close(15) = -1 EBADF (Bad file descriptor) [pid 5639] close(16) = -1 EBADF (Bad file descriptor) [pid 5639] close(17) = -1 EBADF (Bad file descriptor) [pid 5639] close(18) = -1 EBADF (Bad file descriptor) [pid 5639] close(19) = -1 EBADF (Bad file descriptor) [pid 5639] close(20) = -1 EBADF (Bad file descriptor) [pid 5639] close(21) = -1 EBADF (Bad file descriptor) [pid 5639] close(22) = -1 EBADF (Bad file descriptor) [pid 5639] close(23) = -1 EBADF (Bad file descriptor) [pid 5639] close(24) = -1 EBADF (Bad file descriptor) [pid 5639] close(25) = -1 EBADF (Bad file descriptor) [pid 5639] close(26) = -1 EBADF (Bad file descriptor) [pid 5639] close(27) = -1 EBADF (Bad file descriptor) [pid 5639] close(28) = -1 EBADF (Bad file descriptor) [pid 5639] close(29) = -1 EBADF (Bad file descriptor) [pid 5639] exit_group(0) = ? [pid 5639] +++ exited with 0 +++ [pid 5622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5622] restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 [pid 5622] umount2("./9", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./9", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5622] fstat(3, {st_mode=S_IFDIR|0700, st_size=160, ...}) = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 8 entries */, 32768) = 232 [pid 5622] umount2("./9/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5622] umount2("./9/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./9/bus", {st_mode=S_IFDIR|000, st_size=80, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./9/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./9/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|000, st_size=80, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 4 entries */, 32768) = 104 [pid 5622] umount2("./9/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./9/bus/index", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./9/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./9/bus/index", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./9/bus/index") = 0 [pid 5622] umount2("./9/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./9/bus/work", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./9/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./9/bus/work", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./9/bus/work") = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./9/bus") = 0 [pid 5622] umount2("./9/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./9/file0", {st_mode=S_IFDIR|0600, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./9/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./9/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|0600, st_size=40, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./9/file0") = 0 [pid 5622] umount2("./9/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./9/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./9/binderfs") = 0 [pid 5622] umount2("./9/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./9/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./9/cgroup.net") = 0 [pid 5622] umount2("./9/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./9/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./9/cgroup.cpu") = 0 [pid 5622] umount2("./9/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./9/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./9/cgroup") = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 0 entries */, 32768) = 0 [pid 5622] close(3) = 0 [pid 5622] rmdir("./9") = 0 [pid 5622] mkdir("./10", 0777) = 0 [pid 5622] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-linux-next-kasan-gce-root/strace-static-x86_64: Process 5640 attached , child_tidptr=0x55556a0c16d0) = 12 [pid 5640] set_robust_list(0x55556a0c16e0, 24) = 0 [pid 5640] rt_sigprocmask(SIG_SETMASK, [] [pid 5622] rt_sigprocmask(SIG_SETMASK, [] [pid 5640] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5622] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5640] chdir("./10") = 0 [pid 5640] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5640] setpgid(0, 0) = 0 [pid 5640] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 5640] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5640] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 5640] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5640] write(3, "1000", 4) = 4 [pid 5640] close(3) = 0 [pid 5640] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5640] write(1, "executing program\n", 18) = 18 executing program [pid 5640] mkdirat(AT_FDCWD, "./file0", 0601) = 0 [pid 5640] mkdirat(AT_FDCWD, "./bus", 000) = 0 [pid 5640] mount(NULL, "./bus", "overlay", MS_NOEXEC, "workdir=./bus,lowerdir=./cgroup,upperdir=./file0,") = 0 [pid 5640] chdir("./bus") = 0 [pid 5640] mount(NULL, "./tracing", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 5640] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 3 [pid 5640] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 4 [pid 5640] close(3) = 0 [pid 5640] close(4) = 0 [pid 5640] close(5) = -1 EBADF (Bad file descriptor) [pid 5640] close(6) = -1 EBADF (Bad file descriptor) [pid 5640] close(7) = -1 EBADF (Bad file descriptor) [pid 5640] close(8) = -1 EBADF (Bad file descriptor) [pid 5640] close(9) = -1 EBADF (Bad file descriptor) [pid 5640] close(10) = -1 EBADF (Bad file descriptor) [pid 5640] close(11) = -1 EBADF (Bad file descriptor) [pid 5640] close(12) = -1 EBADF (Bad file descriptor) [pid 5640] close(13) = -1 EBADF (Bad file descriptor) [pid 5640] close(14) = -1 EBADF (Bad file descriptor) [pid 5640] close(15) = -1 EBADF (Bad file descriptor) [pid 5640] close(16) = -1 EBADF (Bad file descriptor) [pid 5640] close(17) = -1 EBADF (Bad file descriptor) [pid 5640] close(18) = -1 EBADF (Bad file descriptor) [pid 5640] close(19) = -1 EBADF (Bad file descriptor) [pid 5640] close(20) = -1 EBADF (Bad file descriptor) [pid 5640] close(21) = -1 EBADF (Bad file descriptor) [pid 5640] close(22) = -1 EBADF (Bad file descriptor) [pid 5640] close(23) = -1 EBADF (Bad file descriptor) [pid 5640] close(24) = -1 EBADF (Bad file descriptor) [pid 5640] close(25) = -1 EBADF (Bad file descriptor) [pid 5640] close(26) = -1 EBADF (Bad file descriptor) [pid 5640] close(27) = -1 EBADF (Bad file descriptor) [pid 5640] close(28) = -1 EBADF (Bad file descriptor) [pid 5640] close(29) = -1 EBADF (Bad file descriptor) [pid 5640] exit_group(0) = ? [pid 5640] +++ exited with 0 +++ [pid 5622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5622] restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 [pid 5622] umount2("./10", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./10", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5622] fstat(3, {st_mode=S_IFDIR|0700, st_size=160, ...}) = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 8 entries */, 32768) = 232 [pid 5622] umount2("./10/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5622] umount2("./10/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./10/bus", {st_mode=S_IFDIR|000, st_size=80, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./10/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./10/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|000, st_size=80, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 4 entries */, 32768) = 104 [pid 5622] umount2("./10/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./10/bus/index", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./10/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./10/bus/index", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./10/bus/index") = 0 [pid 5622] umount2("./10/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./10/bus/work", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./10/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./10/bus/work", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./10/bus/work") = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./10/bus") = 0 [pid 5622] umount2("./10/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./10/file0", {st_mode=S_IFDIR|0600, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./10/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./10/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|0600, st_size=40, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./10/file0") = 0 [pid 5622] umount2("./10/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./10/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./10/binderfs") = 0 [pid 5622] umount2("./10/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./10/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./10/cgroup.net") = 0 [pid 5622] umount2("./10/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./10/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./10/cgroup.cpu") = 0 [pid 5622] umount2("./10/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./10/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./10/cgroup") = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 0 entries */, 32768) = 0 [pid 5622] close(3) = 0 [pid 5622] rmdir("./10") = 0 [pid 5622] mkdir("./11", 0777) = 0 [pid 5622] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-linux-next-kasan-gce-root/strace-static-x86_64: Process 5641 attached [pid 5641] set_robust_list(0x55556a0c16e0, 24 [pid 5622] <... clone resumed>, child_tidptr=0x55556a0c16d0) = 13 [pid 5641] <... set_robust_list resumed>) = 0 [pid 5641] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5622] rt_sigprocmask(SIG_SETMASK, [] [pid 5641] chdir("./11" [pid 5622] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5641] <... chdir resumed>) = 0 [pid 5641] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5641] setpgid(0, 0) = 0 [pid 5641] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 5641] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5641] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 5641] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5641] write(3, "1000", 4) = 4 [pid 5641] close(3) = 0 [pid 5641] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5641] write(1, "executing program\n", 18) = 18 executing program [pid 5641] mkdirat(AT_FDCWD, "./file0", 0601) = 0 [pid 5641] mkdirat(AT_FDCWD, "./bus", 000) = 0 [pid 5641] mount(NULL, "./bus", "overlay", MS_NOEXEC, "workdir=./bus,lowerdir=./cgroup,upperdir=./file0,") = 0 [pid 5641] chdir("./bus") = 0 [pid 5641] mount(NULL, "./tracing", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 5641] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 3 [pid 5641] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 4 [pid 5641] close(3) = 0 [pid 5641] close(4) = 0 [pid 5641] close(5) = -1 EBADF (Bad file descriptor) [pid 5641] close(6) = -1 EBADF (Bad file descriptor) [pid 5641] close(7) = -1 EBADF (Bad file descriptor) [pid 5641] close(8) = -1 EBADF (Bad file descriptor) [pid 5641] close(9) = -1 EBADF (Bad file descriptor) [pid 5641] close(10) = -1 EBADF (Bad file descriptor) [pid 5641] close(11) = -1 EBADF (Bad file descriptor) [pid 5641] close(12) = -1 EBADF (Bad file descriptor) [pid 5641] close(13) = -1 EBADF (Bad file descriptor) [pid 5641] close(14) = -1 EBADF (Bad file descriptor) [pid 5641] close(15) = -1 EBADF (Bad file descriptor) [pid 5641] close(16) = -1 EBADF (Bad file descriptor) [pid 5641] close(17) = -1 EBADF (Bad file descriptor) [pid 5641] close(18) = -1 EBADF (Bad file descriptor) [pid 5641] close(19) = -1 EBADF (Bad file descriptor) [pid 5641] close(20) = -1 EBADF (Bad file descriptor) [pid 5641] close(21) = -1 EBADF (Bad file descriptor) [pid 5641] close(22) = -1 EBADF (Bad file descriptor) [pid 5641] close(23) = -1 EBADF (Bad file descriptor) [pid 5641] close(24) = -1 EBADF (Bad file descriptor) [pid 5641] close(25) = -1 EBADF (Bad file descriptor) [pid 5641] close(26) = -1 EBADF (Bad file descriptor) [pid 5641] close(27) = -1 EBADF (Bad file descriptor) [pid 5641] close(28) = -1 EBADF (Bad file descriptor) [pid 5641] close(29) = -1 EBADF (Bad file descriptor) [pid 5641] exit_group(0) = ? [pid 5641] +++ exited with 0 +++ [pid 5622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5622] restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 [pid 5622] umount2("./11", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./11", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5622] fstat(3, {st_mode=S_IFDIR|0700, st_size=160, ...}) = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 8 entries */, 32768) = 232 [pid 5622] umount2("./11/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5622] umount2("./11/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./11/bus", {st_mode=S_IFDIR|000, st_size=80, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./11/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./11/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|000, st_size=80, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 4 entries */, 32768) = 104 [pid 5622] umount2("./11/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./11/bus/index", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./11/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./11/bus/index", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./11/bus/index") = 0 [pid 5622] umount2("./11/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./11/bus/work", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./11/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./11/bus/work", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./11/bus/work") = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./11/bus") = 0 [pid 5622] umount2("./11/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./11/file0", {st_mode=S_IFDIR|0600, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./11/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./11/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|0600, st_size=40, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./11/file0") = 0 [pid 5622] umount2("./11/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./11/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./11/binderfs") = 0 [pid 5622] umount2("./11/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./11/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./11/cgroup.net") = 0 [pid 5622] umount2("./11/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./11/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./11/cgroup.cpu") = 0 [pid 5622] umount2("./11/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./11/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./11/cgroup") = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 0 entries */, 32768) = 0 [pid 5622] close(3) = 0 [pid 5622] rmdir("./11") = 0 [pid 5622] mkdir("./12", 0777) = 0 [pid 5622] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-linux-next-kasan-gce-root/strace-static-x86_64: Process 5643 attached [pid 5643] set_robust_list(0x55556a0c16e0, 24 [pid 5622] <... clone resumed>, child_tidptr=0x55556a0c16d0) = 14 [pid 5643] <... set_robust_list resumed>) = 0 [pid 5643] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5622] rt_sigprocmask(SIG_SETMASK, [] [pid 5643] chdir("./12" [pid 5622] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5643] <... chdir resumed>) = 0 [pid 5643] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5643] setpgid(0, 0) = 0 [pid 5643] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 5643] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5643] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 5643] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5643] write(3, "1000", 4) = 4 [pid 5643] close(3) = 0 [pid 5643] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5643] write(1, "executing program\n", 18) = 18 [pid 5643] mkdirat(AT_FDCWD, "./file0", 0601) = 0 [pid 5643] mkdirat(AT_FDCWD, "./bus", 000) = 0 [pid 5643] mount(NULL, "./bus", "overlay", MS_NOEXEC, "workdir=./bus,lowerdir=./cgroup,upperdir=./file0,") = 0 [pid 5643] chdir("./bus") = 0 [pid 5643] mount(NULL, "./tracing", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 5643] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 3 [pid 5643] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 4 [pid 5643] close(3) = 0 [pid 5643] close(4) = 0 [pid 5643] close(5) = -1 EBADF (Bad file descriptor) [pid 5643] close(6) = -1 EBADF (Bad file descriptor) [pid 5643] close(7) = -1 EBADF (Bad file descriptor) [pid 5643] close(8) = -1 EBADF (Bad file descriptor) [pid 5643] close(9) = -1 EBADF (Bad file descriptor) [pid 5643] close(10) = -1 EBADF (Bad file descriptor) [pid 5643] close(11) = -1 EBADF (Bad file descriptor) [pid 5643] close(12) = -1 EBADF (Bad file descriptor) [pid 5643] close(13) = -1 EBADF (Bad file descriptor) [pid 5643] close(14) = -1 EBADF (Bad file descriptor) [pid 5643] close(15) = -1 EBADF (Bad file descriptor) [pid 5643] close(16) = -1 EBADF (Bad file descriptor) [pid 5643] close(17) = -1 EBADF (Bad file descriptor) [pid 5643] close(18) = -1 EBADF (Bad file descriptor) [pid 5643] close(19) = -1 EBADF (Bad file descriptor) [pid 5643] close(20) = -1 EBADF (Bad file descriptor) [pid 5643] close(21) = -1 EBADF (Bad file descriptor) [pid 5643] close(22) = -1 EBADF (Bad file descriptor) [pid 5643] close(23) = -1 EBADF (Bad file descriptor) [pid 5643] close(24) = -1 EBADF (Bad file descriptor) [pid 5643] close(25) = -1 EBADF (Bad file descriptor) [pid 5643] close(26) = -1 EBADF (Bad file descriptor) [pid 5643] close(27) = -1 EBADF (Bad file descriptor) [pid 5643] close(28) = -1 EBADF (Bad file descriptor) [pid 5643] close(29) = -1 EBADF (Bad file descriptor) [pid 5643] exit_group(0) = ? [pid 5643] +++ exited with 0 +++ [pid 5622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5622] restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 [pid 5622] umount2("./12", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./12", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5622] fstat(3, {st_mode=S_IFDIR|0700, st_size=160, ...}) = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 8 entries */, 32768) = 232 [pid 5622] umount2("./12/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5622] umount2("./12/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./12/bus", {st_mode=S_IFDIR|000, st_size=80, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./12/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./12/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|000, st_size=80, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 4 entries */, 32768) = 104 [pid 5622] umount2("./12/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./12/bus/index", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./12/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./12/bus/index", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./12/bus/index") = 0 [pid 5622] umount2("./12/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./12/bus/work", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./12/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./12/bus/work", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./12/bus/work") = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./12/bus") = 0 [pid 5622] umount2("./12/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./12/file0", {st_mode=S_IFDIR|0600, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./12/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./12/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|0600, st_size=40, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./12/file0") = 0 [pid 5622] umount2("./12/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./12/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./12/binderfs") = 0 [pid 5622] umount2("./12/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./12/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./12/cgroup.net") = 0 [pid 5622] umount2("./12/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./12/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./12/cgroup.cpu") = 0 [pid 5622] umount2("./12/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./12/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./12/cgroup") = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 0 entries */, 32768) = 0 [pid 5622] close(3) = 0 [pid 5622] rmdir("./12") = 0 [pid 5622] mkdir("./13", 0777) = 0 [pid 5622] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556a0c16d0) = 15 ci-upstream-linux-next-kasan-gce-root/strace-static-x86_64: Process 5644 attached [pid 5622] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5644] set_robust_list(0x55556a0c16e0, 24) = 0 [pid 5644] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5644] chdir("./13") = 0 [pid 5644] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5644] setpgid(0, 0) = 0 [pid 5644] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 5644] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5644] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 5644] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5644] write(3, "1000", 4) = 4 [pid 5644] close(3) = 0 [pid 5644] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5644] write(1, "executing program\n", 18) = 18 [pid 5644] mkdirat(AT_FDCWD, "./file0", 0601) = 0 executing program [pid 5644] mkdirat(AT_FDCWD, "./bus", 000) = 0 [pid 5644] mount(NULL, "./bus", "overlay", MS_NOEXEC, "workdir=./bus,lowerdir=./cgroup,upperdir=./file0,") = 0 [pid 5644] chdir("./bus") = 0 [pid 5644] mount(NULL, "./tracing", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 5644] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 3 [pid 5644] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 4 [pid 5644] close(3) = 0 [pid 5644] close(4) = 0 [pid 5644] close(5) = -1 EBADF (Bad file descriptor) [pid 5644] close(6) = -1 EBADF (Bad file descriptor) [pid 5644] close(7) = -1 EBADF (Bad file descriptor) [pid 5644] close(8) = -1 EBADF (Bad file descriptor) [pid 5644] close(9) = -1 EBADF (Bad file descriptor) [pid 5644] close(10) = -1 EBADF (Bad file descriptor) [pid 5644] close(11) = -1 EBADF (Bad file descriptor) [pid 5644] close(12) = -1 EBADF (Bad file descriptor) [pid 5644] close(13) = -1 EBADF (Bad file descriptor) [pid 5644] close(14) = -1 EBADF (Bad file descriptor) [pid 5644] close(15) = -1 EBADF (Bad file descriptor) [pid 5644] close(16) = -1 EBADF (Bad file descriptor) [pid 5644] close(17) = -1 EBADF (Bad file descriptor) [pid 5644] close(18) = -1 EBADF (Bad file descriptor) [pid 5644] close(19) = -1 EBADF (Bad file descriptor) [pid 5644] close(20) = -1 EBADF (Bad file descriptor) [pid 5644] close(21) = -1 EBADF (Bad file descriptor) [pid 5644] close(22) = -1 EBADF (Bad file descriptor) [pid 5644] close(23) = -1 EBADF (Bad file descriptor) [pid 5644] close(24) = -1 EBADF (Bad file descriptor) [pid 5644] close(25) = -1 EBADF (Bad file descriptor) [pid 5644] close(26) = -1 EBADF (Bad file descriptor) [pid 5644] close(27) = -1 EBADF (Bad file descriptor) [pid 5644] close(28) = -1 EBADF (Bad file descriptor) [pid 5644] close(29) = -1 EBADF (Bad file descriptor) [pid 5644] exit_group(0) = ? [pid 5644] +++ exited with 0 +++ [pid 5622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5622] restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 [pid 5622] umount2("./13", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./13", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5622] fstat(3, {st_mode=S_IFDIR|0700, st_size=160, ...}) = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 8 entries */, 32768) = 232 [pid 5622] umount2("./13/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5622] umount2("./13/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./13/bus", {st_mode=S_IFDIR|000, st_size=80, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./13/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./13/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|000, st_size=80, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 4 entries */, 32768) = 104 [pid 5622] umount2("./13/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./13/bus/index", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./13/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./13/bus/index", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./13/bus/index") = 0 [pid 5622] umount2("./13/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./13/bus/work", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./13/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./13/bus/work", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./13/bus/work") = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./13/bus") = 0 [pid 5622] umount2("./13/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./13/file0", {st_mode=S_IFDIR|0600, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./13/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./13/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|0600, st_size=40, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./13/file0") = 0 [pid 5622] umount2("./13/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./13/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./13/binderfs") = 0 [pid 5622] umount2("./13/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./13/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./13/cgroup.net") = 0 [pid 5622] umount2("./13/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./13/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./13/cgroup.cpu") = 0 [pid 5622] umount2("./13/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./13/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./13/cgroup") = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 0 entries */, 32768) = 0 [pid 5622] close(3) = 0 [pid 5622] rmdir("./13") = 0 [pid 5622] mkdir("./14", 0777) = 0 [pid 5622] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-linux-next-kasan-gce-root/strace-static-x86_64: Process 5646 attached , child_tidptr=0x55556a0c16d0) = 16 [pid 5622] rt_sigprocmask(SIG_SETMASK, [] [pid 5646] set_robust_list(0x55556a0c16e0, 24 [pid 5622] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5646] <... set_robust_list resumed>) = 0 [pid 5646] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5646] chdir("./14") = 0 [pid 5646] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5646] setpgid(0, 0) = 0 [pid 5646] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 5646] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5646] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 5646] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5646] write(3, "1000", 4) = 4 [pid 5646] close(3) = 0 executing program [pid 5646] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5646] write(1, "executing program\n", 18) = 18 [pid 5646] mkdirat(AT_FDCWD, "./file0", 0601) = 0 [pid 5646] mkdirat(AT_FDCWD, "./bus", 000) = 0 [pid 5646] mount(NULL, "./bus", "overlay", MS_NOEXEC, "workdir=./bus,lowerdir=./cgroup,upperdir=./file0,") = 0 [pid 5646] chdir("./bus") = 0 [pid 5646] mount(NULL, "./tracing", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 5646] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 3 [pid 5646] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 4 [pid 5646] close(3) = 0 [pid 5646] close(4) = 0 [pid 5646] close(5) = -1 EBADF (Bad file descriptor) [pid 5646] close(6) = -1 EBADF (Bad file descriptor) [pid 5646] close(7) = -1 EBADF (Bad file descriptor) [pid 5646] close(8) = -1 EBADF (Bad file descriptor) [pid 5646] close(9) = -1 EBADF (Bad file descriptor) [pid 5646] close(10) = -1 EBADF (Bad file descriptor) [pid 5646] close(11) = -1 EBADF (Bad file descriptor) [pid 5646] close(12) = -1 EBADF (Bad file descriptor) [pid 5646] close(13) = -1 EBADF (Bad file descriptor) [pid 5646] close(14) = -1 EBADF (Bad file descriptor) [pid 5646] close(15) = -1 EBADF (Bad file descriptor) [pid 5646] close(16) = -1 EBADF (Bad file descriptor) [pid 5646] close(17) = -1 EBADF (Bad file descriptor) [pid 5646] close(18) = -1 EBADF (Bad file descriptor) [pid 5646] close(19) = -1 EBADF (Bad file descriptor) [pid 5646] close(20) = -1 EBADF (Bad file descriptor) [pid 5646] close(21) = -1 EBADF (Bad file descriptor) [pid 5646] close(22) = -1 EBADF (Bad file descriptor) [pid 5646] close(23) = -1 EBADF (Bad file descriptor) [pid 5646] close(24) = -1 EBADF (Bad file descriptor) [pid 5646] close(25) = -1 EBADF (Bad file descriptor) [pid 5646] close(26) = -1 EBADF (Bad file descriptor) [pid 5646] close(27) = -1 EBADF (Bad file descriptor) [pid 5646] close(28) = -1 EBADF (Bad file descriptor) [pid 5646] close(29) = -1 EBADF (Bad file descriptor) [pid 5646] exit_group(0) = ? [pid 5646] +++ exited with 0 +++ [pid 5622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=16, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5622] restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 [pid 5622] umount2("./14", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./14", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5622] fstat(3, {st_mode=S_IFDIR|0700, st_size=160, ...}) = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 8 entries */, 32768) = 232 [pid 5622] umount2("./14/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5622] umount2("./14/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./14/bus", {st_mode=S_IFDIR|000, st_size=80, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./14/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./14/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|000, st_size=80, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 4 entries */, 32768) = 104 [pid 5622] umount2("./14/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./14/bus/index", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./14/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./14/bus/index", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./14/bus/index") = 0 [pid 5622] umount2("./14/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./14/bus/work", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./14/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./14/bus/work", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./14/bus/work") = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./14/bus") = 0 [pid 5622] umount2("./14/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./14/file0", {st_mode=S_IFDIR|0600, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./14/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./14/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|0600, st_size=40, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./14/file0") = 0 [pid 5622] umount2("./14/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./14/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./14/binderfs") = 0 [pid 5622] umount2("./14/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./14/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./14/cgroup.net") = 0 [pid 5622] umount2("./14/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./14/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./14/cgroup.cpu") = 0 [pid 5622] umount2("./14/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./14/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./14/cgroup") = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 0 entries */, 32768) = 0 [pid 5622] close(3) = 0 [pid 5622] rmdir("./14") = 0 [pid 5622] mkdir("./15", 0777) = 0 [pid 5622] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-linux-next-kasan-gce-root/strace-static-x86_64: Process 5647 attached , child_tidptr=0x55556a0c16d0) = 17 [pid 5647] set_robust_list(0x55556a0c16e0, 24) = 0 [pid 5622] rt_sigprocmask(SIG_SETMASK, [] [pid 5647] rt_sigprocmask(SIG_SETMASK, [] [pid 5622] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5647] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5647] chdir("./15") = 0 [pid 5647] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5647] setpgid(0, 0) = 0 [pid 5647] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 5647] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5647] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 5647] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5647] write(3, "1000", 4) = 4 [pid 5647] close(3) = 0 [pid 5647] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5647] write(1, "executing program\n", 18) = 18 executing program [pid 5647] mkdirat(AT_FDCWD, "./file0", 0601) = 0 [pid 5647] mkdirat(AT_FDCWD, "./bus", 000) = 0 [pid 5647] mount(NULL, "./bus", "overlay", MS_NOEXEC, "workdir=./bus,lowerdir=./cgroup,upperdir=./file0,") = 0 [pid 5647] chdir("./bus") = 0 [pid 5647] mount(NULL, "./tracing", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 5647] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 3 [pid 5647] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 4 [pid 5647] close(3) = 0 [pid 5647] close(4) = 0 [pid 5647] close(5) = -1 EBADF (Bad file descriptor) [pid 5647] close(6) = -1 EBADF (Bad file descriptor) [pid 5647] close(7) = -1 EBADF (Bad file descriptor) [pid 5647] close(8) = -1 EBADF (Bad file descriptor) [pid 5647] close(9) = -1 EBADF (Bad file descriptor) [pid 5647] close(10) = -1 EBADF (Bad file descriptor) [pid 5647] close(11) = -1 EBADF (Bad file descriptor) [pid 5647] close(12) = -1 EBADF (Bad file descriptor) [pid 5647] close(13) = -1 EBADF (Bad file descriptor) [pid 5647] close(14) = -1 EBADF (Bad file descriptor) [pid 5647] close(15) = -1 EBADF (Bad file descriptor) [pid 5647] close(16) = -1 EBADF (Bad file descriptor) [pid 5647] close(17) = -1 EBADF (Bad file descriptor) [pid 5647] close(18) = -1 EBADF (Bad file descriptor) [pid 5647] close(19) = -1 EBADF (Bad file descriptor) [pid 5647] close(20) = -1 EBADF (Bad file descriptor) [pid 5647] close(21) = -1 EBADF (Bad file descriptor) [pid 5647] close(22) = -1 EBADF (Bad file descriptor) [pid 5647] close(23) = -1 EBADF (Bad file descriptor) [pid 5647] close(24) = -1 EBADF (Bad file descriptor) [pid 5647] close(25) = -1 EBADF (Bad file descriptor) [pid 5647] close(26) = -1 EBADF (Bad file descriptor) [pid 5647] close(27) = -1 EBADF (Bad file descriptor) [pid 5647] close(28) = -1 EBADF (Bad file descriptor) [pid 5647] close(29) = -1 EBADF (Bad file descriptor) [pid 5647] exit_group(0) = ? [pid 5647] +++ exited with 0 +++ [pid 5622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=17, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5622] restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 [pid 5622] umount2("./15", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./15", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5622] fstat(3, {st_mode=S_IFDIR|0700, st_size=160, ...}) = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 8 entries */, 32768) = 232 [pid 5622] umount2("./15/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5622] umount2("./15/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./15/bus", {st_mode=S_IFDIR|000, st_size=80, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./15/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./15/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|000, st_size=80, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 4 entries */, 32768) = 104 [pid 5622] umount2("./15/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./15/bus/index", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./15/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./15/bus/index", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./15/bus/index") = 0 [pid 5622] umount2("./15/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./15/bus/work", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./15/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./15/bus/work", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./15/bus/work") = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./15/bus") = 0 [pid 5622] umount2("./15/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./15/file0", {st_mode=S_IFDIR|0600, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./15/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./15/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|0600, st_size=40, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./15/file0") = 0 [pid 5622] umount2("./15/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./15/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./15/binderfs") = 0 [pid 5622] umount2("./15/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./15/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./15/cgroup.net") = 0 [pid 5622] umount2("./15/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./15/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./15/cgroup.cpu") = 0 [pid 5622] umount2("./15/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./15/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./15/cgroup") = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 0 entries */, 32768) = 0 [pid 5622] close(3) = 0 [pid 5622] rmdir("./15") = 0 [pid 5622] mkdir("./16", 0777) = 0 [pid 5622] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-linux-next-kasan-gce-root/strace-static-x86_64: Process 5648 attached [pid 5648] set_robust_list(0x55556a0c16e0, 24 [pid 5622] <... clone resumed>, child_tidptr=0x55556a0c16d0) = 18 [pid 5648] <... set_robust_list resumed>) = 0 [pid 5622] rt_sigprocmask(SIG_SETMASK, [] [pid 5648] rt_sigprocmask(SIG_SETMASK, [] [pid 5622] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5648] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5648] chdir("./16") = 0 [pid 5648] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5648] setpgid(0, 0) = 0 [pid 5648] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 5648] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5648] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 5648] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5648] write(3, "1000", 4) = 4 [pid 5648] close(3) = 0 [pid 5648] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5648] write(1, "executing program\n", 18) = 18 [pid 5648] mkdirat(AT_FDCWD, "./file0", 0601) = 0 [pid 5648] mkdirat(AT_FDCWD, "./bus", 000) = 0 [pid 5648] mount(NULL, "./bus", "overlay", MS_NOEXEC, "workdir=./bus,lowerdir=./cgroup,upperdir=./file0,") = 0 [pid 5648] chdir("./bus") = 0 [pid 5648] mount(NULL, "./tracing", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 5648] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 3 [pid 5648] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 4 [pid 5648] close(3) = 0 [pid 5648] close(4) = 0 [pid 5648] close(5) = -1 EBADF (Bad file descriptor) [pid 5648] close(6) = -1 EBADF (Bad file descriptor) [pid 5648] close(7) = -1 EBADF (Bad file descriptor) [pid 5648] close(8) = -1 EBADF (Bad file descriptor) [pid 5648] close(9) = -1 EBADF (Bad file descriptor) [pid 5648] close(10) = -1 EBADF (Bad file descriptor) [pid 5648] close(11) = -1 EBADF (Bad file descriptor) [pid 5648] close(12) = -1 EBADF (Bad file descriptor) [pid 5648] close(13) = -1 EBADF (Bad file descriptor) [pid 5648] close(14) = -1 EBADF (Bad file descriptor) [pid 5648] close(15) = -1 EBADF (Bad file descriptor) [pid 5648] close(16) = -1 EBADF (Bad file descriptor) [pid 5648] close(17) = -1 EBADF (Bad file descriptor) [pid 5648] close(18) = -1 EBADF (Bad file descriptor) [pid 5648] close(19) = -1 EBADF (Bad file descriptor) [pid 5648] close(20) = -1 EBADF (Bad file descriptor) [pid 5648] close(21) = -1 EBADF (Bad file descriptor) [pid 5648] close(22) = -1 EBADF (Bad file descriptor) [pid 5648] close(23) = -1 EBADF (Bad file descriptor) [pid 5648] close(24) = -1 EBADF (Bad file descriptor) [pid 5648] close(25) = -1 EBADF (Bad file descriptor) [pid 5648] close(26) = -1 EBADF (Bad file descriptor) [pid 5648] close(27) = -1 EBADF (Bad file descriptor) [pid 5648] close(28) = -1 EBADF (Bad file descriptor) [pid 5648] close(29) = -1 EBADF (Bad file descriptor) [pid 5648] exit_group(0) = ? [pid 5648] +++ exited with 0 +++ [pid 5622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=18, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5622] restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 [pid 5622] umount2("./16", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./16", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5622] fstat(3, {st_mode=S_IFDIR|0700, st_size=160, ...}) = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 8 entries */, 32768) = 232 [pid 5622] umount2("./16/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5622] umount2("./16/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./16/bus", {st_mode=S_IFDIR|000, st_size=80, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./16/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./16/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|000, st_size=80, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 4 entries */, 32768) = 104 [pid 5622] umount2("./16/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./16/bus/index", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./16/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./16/bus/index", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./16/bus/index") = 0 [pid 5622] umount2("./16/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./16/bus/work", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./16/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./16/bus/work", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./16/bus/work") = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./16/bus") = 0 [pid 5622] umount2("./16/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./16/file0", {st_mode=S_IFDIR|0600, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./16/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./16/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|0600, st_size=40, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./16/file0") = 0 [pid 5622] umount2("./16/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./16/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./16/binderfs") = 0 [pid 5622] umount2("./16/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./16/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./16/cgroup.net") = 0 [pid 5622] umount2("./16/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./16/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./16/cgroup.cpu") = 0 [pid 5622] umount2("./16/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./16/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./16/cgroup") = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 0 entries */, 32768) = 0 [pid 5622] close(3) = 0 [pid 5622] rmdir("./16") = 0 [pid 5622] mkdir("./17", 0777) = 0 [pid 5622] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-linux-next-kasan-gce-root/strace-static-x86_64: Process 5649 attached , child_tidptr=0x55556a0c16d0) = 19 [pid 5622] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5649] set_robust_list(0x55556a0c16e0, 24) = 0 [pid 5649] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5649] chdir("./17") = 0 [pid 5649] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5649] setpgid(0, 0) = 0 [pid 5649] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 5649] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5649] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 5649] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5649] write(3, "1000", 4) = 4 [pid 5649] close(3) = 0 executing program [pid 5649] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5649] write(1, "executing program\n", 18) = 18 [pid 5649] mkdirat(AT_FDCWD, "./file0", 0601) = 0 [pid 5649] mkdirat(AT_FDCWD, "./bus", 000) = 0 [pid 5649] mount(NULL, "./bus", "overlay", MS_NOEXEC, "workdir=./bus,lowerdir=./cgroup,upperdir=./file0,") = 0 [pid 5649] chdir("./bus") = 0 [pid 5649] mount(NULL, "./tracing", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 5649] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 3 [pid 5649] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 4 [pid 5649] close(3) = 0 [pid 5649] close(4) = 0 [pid 5649] close(5) = -1 EBADF (Bad file descriptor) [pid 5649] close(6) = -1 EBADF (Bad file descriptor) [pid 5649] close(7) = -1 EBADF (Bad file descriptor) [pid 5649] close(8) = -1 EBADF (Bad file descriptor) [pid 5649] close(9) = -1 EBADF (Bad file descriptor) [pid 5649] close(10) = -1 EBADF (Bad file descriptor) [pid 5649] close(11) = -1 EBADF (Bad file descriptor) [pid 5649] close(12) = -1 EBADF (Bad file descriptor) [pid 5649] close(13) = -1 EBADF (Bad file descriptor) [pid 5649] close(14) = -1 EBADF (Bad file descriptor) [pid 5649] close(15) = -1 EBADF (Bad file descriptor) [pid 5649] close(16) = -1 EBADF (Bad file descriptor) [pid 5649] close(17) = -1 EBADF (Bad file descriptor) [pid 5649] close(18) = -1 EBADF (Bad file descriptor) [pid 5649] close(19) = -1 EBADF (Bad file descriptor) [pid 5649] close(20) = -1 EBADF (Bad file descriptor) [pid 5649] close(21) = -1 EBADF (Bad file descriptor) [pid 5649] close(22) = -1 EBADF (Bad file descriptor) [pid 5649] close(23) = -1 EBADF (Bad file descriptor) [pid 5649] close(24) = -1 EBADF (Bad file descriptor) [pid 5649] close(25) = -1 EBADF (Bad file descriptor) [pid 5649] close(26) = -1 EBADF (Bad file descriptor) [pid 5649] close(27) = -1 EBADF (Bad file descriptor) [pid 5649] close(28) = -1 EBADF (Bad file descriptor) [pid 5649] close(29) = -1 EBADF (Bad file descriptor) [pid 5649] exit_group(0) = ? [pid 5649] +++ exited with 0 +++ [pid 5622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5622] restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 [pid 5622] umount2("./17", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./17", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5622] fstat(3, {st_mode=S_IFDIR|0700, st_size=160, ...}) = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 8 entries */, 32768) = 232 [pid 5622] umount2("./17/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5622] umount2("./17/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./17/bus", {st_mode=S_IFDIR|000, st_size=80, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./17/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./17/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|000, st_size=80, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 4 entries */, 32768) = 104 [pid 5622] umount2("./17/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./17/bus/index", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./17/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./17/bus/index", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./17/bus/index") = 0 [pid 5622] umount2("./17/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./17/bus/work", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./17/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./17/bus/work", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./17/bus/work") = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./17/bus") = 0 [pid 5622] umount2("./17/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./17/file0", {st_mode=S_IFDIR|0600, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./17/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./17/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|0600, st_size=40, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./17/file0") = 0 [pid 5622] umount2("./17/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./17/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./17/binderfs") = 0 [pid 5622] umount2("./17/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./17/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./17/cgroup.net") = 0 [pid 5622] umount2("./17/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./17/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./17/cgroup.cpu") = 0 [pid 5622] umount2("./17/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./17/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./17/cgroup") = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 0 entries */, 32768) = 0 [pid 5622] close(3) = 0 [pid 5622] rmdir("./17") = 0 [pid 5622] mkdir("./18", 0777) = 0 [pid 5622] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-linux-next-kasan-gce-root/strace-static-x86_64: Process 5650 attached [pid 5650] set_robust_list(0x55556a0c16e0, 24 [pid 5622] <... clone resumed>, child_tidptr=0x55556a0c16d0) = 20 [pid 5650] <... set_robust_list resumed>) = 0 [pid 5650] rt_sigprocmask(SIG_SETMASK, [] [pid 5622] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5650] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5650] chdir("./18") = 0 [pid 5650] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5650] setpgid(0, 0) = 0 [pid 5650] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 5650] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5650] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 5650] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5650] write(3, "1000", 4) = 4 [pid 5650] close(3) = 0 [pid 5650] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5650] write(1, "executing program\n", 18) = 18 executing program [pid 5650] mkdirat(AT_FDCWD, "./file0", 0601) = 0 [pid 5650] mkdirat(AT_FDCWD, "./bus", 000) = 0 [pid 5650] mount(NULL, "./bus", "overlay", MS_NOEXEC, "workdir=./bus,lowerdir=./cgroup,upperdir=./file0,") = 0 [pid 5650] chdir("./bus") = 0 [pid 5650] mount(NULL, "./tracing", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 5650] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 3 [pid 5650] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 4 [pid 5650] close(3) = 0 [pid 5650] close(4) = 0 [pid 5650] close(5) = -1 EBADF (Bad file descriptor) [pid 5650] close(6) = -1 EBADF (Bad file descriptor) [pid 5650] close(7) = -1 EBADF (Bad file descriptor) [pid 5650] close(8) = -1 EBADF (Bad file descriptor) [pid 5650] close(9) = -1 EBADF (Bad file descriptor) [pid 5650] close(10) = -1 EBADF (Bad file descriptor) [pid 5650] close(11) = -1 EBADF (Bad file descriptor) [pid 5650] close(12) = -1 EBADF (Bad file descriptor) [pid 5650] close(13) = -1 EBADF (Bad file descriptor) [pid 5650] close(14) = -1 EBADF (Bad file descriptor) [pid 5650] close(15) = -1 EBADF (Bad file descriptor) [pid 5650] close(16) = -1 EBADF (Bad file descriptor) [pid 5650] close(17) = -1 EBADF (Bad file descriptor) [pid 5650] close(18) = -1 EBADF (Bad file descriptor) [pid 5650] close(19) = -1 EBADF (Bad file descriptor) [pid 5650] close(20) = -1 EBADF (Bad file descriptor) [pid 5650] close(21) = -1 EBADF (Bad file descriptor) [pid 5650] close(22) = -1 EBADF (Bad file descriptor) [pid 5650] close(23) = -1 EBADF (Bad file descriptor) [pid 5650] close(24) = -1 EBADF (Bad file descriptor) [pid 5650] close(25) = -1 EBADF (Bad file descriptor) [pid 5650] close(26) = -1 EBADF (Bad file descriptor) [pid 5650] close(27) = -1 EBADF (Bad file descriptor) [pid 5650] close(28) = -1 EBADF (Bad file descriptor) [pid 5650] close(29) = -1 EBADF (Bad file descriptor) [pid 5650] exit_group(0) = ? [pid 5650] +++ exited with 0 +++ [pid 5622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5622] restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 [pid 5622] umount2("./18", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./18", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5622] fstat(3, {st_mode=S_IFDIR|0700, st_size=160, ...}) = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 8 entries */, 32768) = 232 [pid 5622] umount2("./18/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5622] umount2("./18/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./18/bus", {st_mode=S_IFDIR|000, st_size=80, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./18/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./18/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|000, st_size=80, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 4 entries */, 32768) = 104 [pid 5622] umount2("./18/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./18/bus/index", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./18/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./18/bus/index", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./18/bus/index") = 0 [pid 5622] umount2("./18/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./18/bus/work", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./18/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./18/bus/work", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./18/bus/work") = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./18/bus") = 0 [pid 5622] umount2("./18/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./18/file0", {st_mode=S_IFDIR|0600, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./18/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./18/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|0600, st_size=40, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./18/file0") = 0 [pid 5622] umount2("./18/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./18/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./18/binderfs") = 0 [pid 5622] umount2("./18/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./18/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./18/cgroup.net") = 0 [pid 5622] umount2("./18/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./18/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./18/cgroup.cpu") = 0 [pid 5622] umount2("./18/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./18/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./18/cgroup") = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 0 entries */, 32768) = 0 [pid 5622] close(3) = 0 [pid 5622] rmdir("./18") = 0 [pid 5622] mkdir("./19", 0777) = 0 [pid 5622] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-linux-next-kasan-gce-root/strace-static-x86_64: Process 5651 attached , child_tidptr=0x55556a0c16d0) = 21 [pid 5622] rt_sigprocmask(SIG_SETMASK, [] [pid 5651] set_robust_list(0x55556a0c16e0, 24) = 0 [pid 5622] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5651] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5651] chdir("./19") = 0 [pid 5651] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5651] setpgid(0, 0) = 0 [pid 5651] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 executing program [pid 5651] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5651] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 5651] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5651] write(3, "1000", 4) = 4 [pid 5651] close(3) = 0 [pid 5651] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5651] write(1, "executing program\n", 18) = 18 [pid 5651] mkdirat(AT_FDCWD, "./file0", 0601) = 0 [pid 5651] mkdirat(AT_FDCWD, "./bus", 000) = 0 [pid 5651] mount(NULL, "./bus", "overlay", MS_NOEXEC, "workdir=./bus,lowerdir=./cgroup,upperdir=./file0,") = 0 [pid 5651] chdir("./bus") = 0 [pid 5651] mount(NULL, "./tracing", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 5651] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 3 [pid 5651] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 4 [pid 5651] close(3) = 0 [pid 5651] close(4) = 0 [pid 5651] close(5) = -1 EBADF (Bad file descriptor) [pid 5651] close(6) = -1 EBADF (Bad file descriptor) [pid 5651] close(7) = -1 EBADF (Bad file descriptor) [pid 5651] close(8) = -1 EBADF (Bad file descriptor) [pid 5651] close(9) = -1 EBADF (Bad file descriptor) [pid 5651] close(10) = -1 EBADF (Bad file descriptor) [pid 5651] close(11) = -1 EBADF (Bad file descriptor) [pid 5651] close(12) = -1 EBADF (Bad file descriptor) [pid 5651] close(13) = -1 EBADF (Bad file descriptor) [pid 5651] close(14) = -1 EBADF (Bad file descriptor) [pid 5651] close(15) = -1 EBADF (Bad file descriptor) [pid 5651] close(16) = -1 EBADF (Bad file descriptor) [pid 5651] close(17) = -1 EBADF (Bad file descriptor) [pid 5651] close(18) = -1 EBADF (Bad file descriptor) [pid 5651] close(19) = -1 EBADF (Bad file descriptor) [pid 5651] close(20) = -1 EBADF (Bad file descriptor) [pid 5651] close(21) = -1 EBADF (Bad file descriptor) [pid 5651] close(22) = -1 EBADF (Bad file descriptor) [pid 5651] close(23) = -1 EBADF (Bad file descriptor) [pid 5651] close(24) = -1 EBADF (Bad file descriptor) [pid 5651] close(25) = -1 EBADF (Bad file descriptor) [pid 5651] close(26) = -1 EBADF (Bad file descriptor) [pid 5651] close(27) = -1 EBADF (Bad file descriptor) [pid 5651] close(28) = -1 EBADF (Bad file descriptor) [pid 5651] close(29) = -1 EBADF (Bad file descriptor) [pid 5651] exit_group(0) = ? [pid 5651] +++ exited with 0 +++ [pid 5622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5622] restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 [pid 5622] umount2("./19", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./19", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5622] fstat(3, {st_mode=S_IFDIR|0700, st_size=160, ...}) = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 8 entries */, 32768) = 232 [pid 5622] umount2("./19/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5622] umount2("./19/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./19/bus", {st_mode=S_IFDIR|000, st_size=80, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./19/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./19/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|000, st_size=80, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 4 entries */, 32768) = 104 [pid 5622] umount2("./19/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./19/bus/index", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./19/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./19/bus/index", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./19/bus/index") = 0 [pid 5622] umount2("./19/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./19/bus/work", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./19/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./19/bus/work", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./19/bus/work") = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./19/bus") = 0 [pid 5622] umount2("./19/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./19/file0", {st_mode=S_IFDIR|0600, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./19/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./19/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|0600, st_size=40, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./19/file0") = 0 [pid 5622] umount2("./19/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./19/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./19/binderfs") = 0 [pid 5622] umount2("./19/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./19/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./19/cgroup.net") = 0 [pid 5622] umount2("./19/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./19/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./19/cgroup.cpu") = 0 [pid 5622] umount2("./19/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./19/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./19/cgroup") = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 0 entries */, 32768) = 0 [pid 5622] close(3) = 0 [pid 5622] rmdir("./19") = 0 [pid 5622] mkdir("./20", 0777) = 0 [pid 5622] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-linux-next-kasan-gce-root/strace-static-x86_64: Process 5652 attached [pid 5652] set_robust_list(0x55556a0c16e0, 24 [pid 5622] <... clone resumed>, child_tidptr=0x55556a0c16d0) = 22 [pid 5652] <... set_robust_list resumed>) = 0 [pid 5652] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5622] rt_sigprocmask(SIG_SETMASK, [] [pid 5652] chdir("./20" [pid 5622] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5652] <... chdir resumed>) = 0 [pid 5652] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5652] setpgid(0, 0) = 0 [pid 5652] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 5652] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5652] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 5652] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5652] write(3, "1000", 4) = 4 [pid 5652] close(3) = 0 [pid 5652] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5652] write(1, "executing program\n", 18) = 18 executing program [pid 5652] mkdirat(AT_FDCWD, "./file0", 0601) = 0 [pid 5652] mkdirat(AT_FDCWD, "./bus", 000) = 0 [pid 5652] mount(NULL, "./bus", "overlay", MS_NOEXEC, "workdir=./bus,lowerdir=./cgroup,upperdir=./file0,") = 0 [pid 5652] chdir("./bus") = 0 [pid 5652] mount(NULL, "./tracing", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 5652] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 3 [pid 5652] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 4 [pid 5652] close(3) = 0 [pid 5652] close(4) = 0 [pid 5652] close(5) = -1 EBADF (Bad file descriptor) [pid 5652] close(6) = -1 EBADF (Bad file descriptor) [pid 5652] close(7) = -1 EBADF (Bad file descriptor) [pid 5652] close(8) = -1 EBADF (Bad file descriptor) [pid 5652] close(9) = -1 EBADF (Bad file descriptor) [pid 5652] close(10) = -1 EBADF (Bad file descriptor) [pid 5652] close(11) = -1 EBADF (Bad file descriptor) [pid 5652] close(12) = -1 EBADF (Bad file descriptor) [pid 5652] close(13) = -1 EBADF (Bad file descriptor) [pid 5652] close(14) = -1 EBADF (Bad file descriptor) [pid 5652] close(15) = -1 EBADF (Bad file descriptor) [pid 5652] close(16) = -1 EBADF (Bad file descriptor) [pid 5652] close(17) = -1 EBADF (Bad file descriptor) [pid 5652] close(18) = -1 EBADF (Bad file descriptor) [pid 5652] close(19) = -1 EBADF (Bad file descriptor) [pid 5652] close(20) = -1 EBADF (Bad file descriptor) [pid 5652] close(21) = -1 EBADF (Bad file descriptor) [pid 5652] close(22) = -1 EBADF (Bad file descriptor) [pid 5652] close(23) = -1 EBADF (Bad file descriptor) [pid 5652] close(24) = -1 EBADF (Bad file descriptor) [pid 5652] close(25) = -1 EBADF (Bad file descriptor) [pid 5652] close(26) = -1 EBADF (Bad file descriptor) [pid 5652] close(27) = -1 EBADF (Bad file descriptor) [pid 5652] close(28) = -1 EBADF (Bad file descriptor) [pid 5652] close(29) = -1 EBADF (Bad file descriptor) [pid 5652] exit_group(0) = ? [pid 5652] +++ exited with 0 +++ [pid 5622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5622] restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 [pid 5622] umount2("./20", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./20", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5622] fstat(3, {st_mode=S_IFDIR|0700, st_size=160, ...}) = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 8 entries */, 32768) = 232 [pid 5622] umount2("./20/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5622] umount2("./20/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./20/bus", {st_mode=S_IFDIR|000, st_size=80, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./20/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./20/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|000, st_size=80, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 4 entries */, 32768) = 104 [pid 5622] umount2("./20/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./20/bus/index", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./20/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./20/bus/index", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./20/bus/index") = 0 [pid 5622] umount2("./20/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./20/bus/work", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./20/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./20/bus/work", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./20/bus/work") = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./20/bus") = 0 [pid 5622] umount2("./20/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./20/file0", {st_mode=S_IFDIR|0600, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./20/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./20/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|0600, st_size=40, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./20/file0") = 0 [pid 5622] umount2("./20/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./20/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./20/binderfs") = 0 [pid 5622] umount2("./20/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./20/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./20/cgroup.net") = 0 [pid 5622] umount2("./20/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./20/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./20/cgroup.cpu") = 0 [pid 5622] umount2("./20/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./20/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./20/cgroup") = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 0 entries */, 32768) = 0 [pid 5622] close(3) = 0 [pid 5622] rmdir("./20") = 0 [pid 5622] mkdir("./21", 0777) = 0 [pid 5622] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-linux-next-kasan-gce-root/strace-static-x86_64: Process 5653 attached , child_tidptr=0x55556a0c16d0) = 23 [pid 5622] rt_sigprocmask(SIG_SETMASK, [] [pid 5653] set_robust_list(0x55556a0c16e0, 24) = 0 [pid 5622] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5653] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5653] chdir("./21") = 0 [pid 5653] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5653] setpgid(0, 0) = 0 [pid 5653] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 5653] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5653] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 5653] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5653] write(3, "1000", 4) = 4 [pid 5653] close(3) = 0 [pid 5653] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5653] write(1, "executing program\n", 18) = 18 [pid 5653] mkdirat(AT_FDCWD, "./file0", 0601) = 0 executing program [pid 5653] mkdirat(AT_FDCWD, "./bus", 000) = 0 [pid 5653] mount(NULL, "./bus", "overlay", MS_NOEXEC, "workdir=./bus,lowerdir=./cgroup,upperdir=./file0,") = 0 [pid 5653] chdir("./bus") = 0 [pid 5653] mount(NULL, "./tracing", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 5653] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 3 [pid 5653] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 4 [pid 5653] close(3) = 0 [pid 5653] close(4) = 0 [pid 5653] close(5) = -1 EBADF (Bad file descriptor) [pid 5653] close(6) = -1 EBADF (Bad file descriptor) [pid 5653] close(7) = -1 EBADF (Bad file descriptor) [pid 5653] close(8) = -1 EBADF (Bad file descriptor) [pid 5653] close(9) = -1 EBADF (Bad file descriptor) [pid 5653] close(10) = -1 EBADF (Bad file descriptor) [pid 5653] close(11) = -1 EBADF (Bad file descriptor) [pid 5653] close(12) = -1 EBADF (Bad file descriptor) [pid 5653] close(13) = -1 EBADF (Bad file descriptor) [pid 5653] close(14) = -1 EBADF (Bad file descriptor) [pid 5653] close(15) = -1 EBADF (Bad file descriptor) [pid 5653] close(16) = -1 EBADF (Bad file descriptor) [pid 5653] close(17) = -1 EBADF (Bad file descriptor) [pid 5653] close(18) = -1 EBADF (Bad file descriptor) [pid 5653] close(19) = -1 EBADF (Bad file descriptor) [pid 5653] close(20) = -1 EBADF (Bad file descriptor) [pid 5653] close(21) = -1 EBADF (Bad file descriptor) [pid 5653] close(22) = -1 EBADF (Bad file descriptor) [pid 5653] close(23) = -1 EBADF (Bad file descriptor) [pid 5653] close(24) = -1 EBADF (Bad file descriptor) [pid 5653] close(25) = -1 EBADF (Bad file descriptor) [pid 5653] close(26) = -1 EBADF (Bad file descriptor) [pid 5653] close(27) = -1 EBADF (Bad file descriptor) [pid 5653] close(28) = -1 EBADF (Bad file descriptor) [pid 5653] close(29) = -1 EBADF (Bad file descriptor) [pid 5653] exit_group(0) = ? [pid 5653] +++ exited with 0 +++ [pid 5622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5622] restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 [pid 5622] umount2("./21", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./21", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5622] fstat(3, {st_mode=S_IFDIR|0700, st_size=160, ...}) = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 8 entries */, 32768) = 232 [pid 5622] umount2("./21/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5622] umount2("./21/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./21/bus", {st_mode=S_IFDIR|000, st_size=80, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./21/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./21/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|000, st_size=80, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 4 entries */, 32768) = 104 [pid 5622] umount2("./21/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./21/bus/index", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./21/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./21/bus/index", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./21/bus/index") = 0 [pid 5622] umount2("./21/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./21/bus/work", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./21/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./21/bus/work", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./21/bus/work") = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./21/bus") = 0 [pid 5622] umount2("./21/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./21/file0", {st_mode=S_IFDIR|0600, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./21/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./21/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|0600, st_size=40, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./21/file0") = 0 [pid 5622] umount2("./21/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./21/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./21/binderfs") = 0 [pid 5622] umount2("./21/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./21/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./21/cgroup.net") = 0 [pid 5622] umount2("./21/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./21/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./21/cgroup.cpu") = 0 [pid 5622] umount2("./21/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./21/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./21/cgroup") = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 0 entries */, 32768) = 0 [pid 5622] close(3) = 0 [pid 5622] rmdir("./21") = 0 [pid 5622] mkdir("./22", 0777) = 0 [pid 5622] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556a0c16d0) = 24 ci-upstream-linux-next-kasan-gce-root/strace-static-x86_64: Process 5654 attached [pid 5622] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5654] set_robust_list(0x55556a0c16e0, 24) = 0 [pid 5654] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5654] chdir("./22") = 0 [pid 5654] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5654] setpgid(0, 0) = 0 [pid 5654] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 5654] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5654] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 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") = 0 [pid 5654] write(1, "executing program\n", 18) = 18 executing program [pid 5654] mkdirat(AT_FDCWD, "./file0", 0601) = 0 [pid 5654] mkdirat(AT_FDCWD, "./bus", 000) = 0 [pid 5654] mount(NULL, "./bus", "overlay", MS_NOEXEC, "workdir=./bus,lowerdir=./cgroup,upperdir=./file0,") = 0 [pid 5654] chdir("./bus") = 0 [pid 5654] mount(NULL, "./tracing", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 5654] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 3 [pid 5654] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 4 [pid 5654] close(3) = 0 [pid 5654] close(4) = 0 [pid 5654] close(5) = -1 EBADF (Bad file descriptor) [pid 5654] close(6) = -1 EBADF (Bad file descriptor) [pid 5654] close(7) = -1 EBADF (Bad file descriptor) [pid 5654] close(8) = -1 EBADF (Bad file descriptor) [pid 5654] close(9) = -1 EBADF (Bad file descriptor) [pid 5654] close(10) = -1 EBADF (Bad file descriptor) [pid 5654] close(11) = -1 EBADF (Bad file descriptor) [pid 5654] close(12) = -1 EBADF (Bad file descriptor) [pid 5654] close(13) = -1 EBADF (Bad file descriptor) [pid 5654] close(14) = -1 EBADF (Bad file descriptor) [pid 5654] close(15) = -1 EBADF (Bad file descriptor) [pid 5654] close(16) = -1 EBADF (Bad file descriptor) [pid 5654] close(17) = -1 EBADF (Bad file descriptor) [pid 5654] close(18) = -1 EBADF (Bad file descriptor) [pid 5654] close(19) = -1 EBADF (Bad file descriptor) [pid 5654] close(20) = -1 EBADF (Bad file descriptor) [pid 5654] close(21) = -1 EBADF (Bad file descriptor) [pid 5654] close(22) = -1 EBADF (Bad file descriptor) [pid 5654] close(23) = -1 EBADF (Bad file descriptor) [pid 5654] close(24) = -1 EBADF (Bad file descriptor) [pid 5654] close(25) = -1 EBADF (Bad file descriptor) [pid 5654] close(26) = -1 EBADF (Bad file descriptor) [pid 5654] close(27) = -1 EBADF (Bad file descriptor) [pid 5654] close(28) = -1 EBADF (Bad file descriptor) [pid 5654] close(29) = -1 EBADF (Bad file descriptor) [pid 5654] exit_group(0) = ? [pid 5654] +++ exited with 0 +++ [pid 5622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=24, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5622] restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 [pid 5622] umount2("./22", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./22", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5622] fstat(3, {st_mode=S_IFDIR|0700, st_size=160, ...}) = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 8 entries */, 32768) = 232 [pid 5622] umount2("./22/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5622] umount2("./22/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./22/bus", {st_mode=S_IFDIR|000, st_size=80, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./22/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./22/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|000, st_size=80, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 4 entries */, 32768) = 104 [pid 5622] umount2("./22/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./22/bus/index", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./22/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./22/bus/index", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./22/bus/index") = 0 [pid 5622] umount2("./22/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./22/bus/work", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./22/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./22/bus/work", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./22/bus/work") = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./22/bus") = 0 [pid 5622] umount2("./22/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./22/file0", {st_mode=S_IFDIR|0600, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./22/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./22/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|0600, st_size=40, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./22/file0") = 0 [pid 5622] umount2("./22/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./22/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./22/binderfs") = 0 [pid 5622] umount2("./22/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./22/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./22/cgroup.net") = 0 [pid 5622] umount2("./22/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./22/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./22/cgroup.cpu") = 0 [pid 5622] umount2("./22/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./22/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./22/cgroup") = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 0 entries */, 32768) = 0 [pid 5622] close(3) = 0 [pid 5622] rmdir("./22") = 0 [pid 5622] mkdir("./23", 0777) = 0 [pid 5622] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-linux-next-kasan-gce-root/strace-static-x86_64: Process 5655 attached [pid 5655] set_robust_list(0x55556a0c16e0, 24 [pid 5622] <... clone resumed>, child_tidptr=0x55556a0c16d0) = 25 [pid 5655] <... set_robust_list resumed>) = 0 [pid 5655] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5622] rt_sigprocmask(SIG_SETMASK, [] [pid 5655] chdir("./23" [pid 5622] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5655] <... chdir resumed>) = 0 [pid 5655] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5655] setpgid(0, 0) = 0 [pid 5655] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 5655] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5655] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 5655] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5655] write(3, "1000", 4) = 4 [pid 5655] close(3) = 0 [pid 5655] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5655] write(1, "executing program\n", 18) = 18 executing program [pid 5655] mkdirat(AT_FDCWD, "./file0", 0601) = 0 [pid 5655] mkdirat(AT_FDCWD, "./bus", 000) = 0 [pid 5655] mount(NULL, "./bus", "overlay", MS_NOEXEC, "workdir=./bus,lowerdir=./cgroup,upperdir=./file0,") = 0 [pid 5655] chdir("./bus") = 0 [pid 5655] mount(NULL, "./tracing", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 5655] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 3 [pid 5655] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 4 [pid 5655] close(3) = 0 [pid 5655] close(4) = 0 [pid 5655] close(5) = -1 EBADF (Bad file descriptor) [pid 5655] close(6) = -1 EBADF (Bad file descriptor) [pid 5655] close(7) = -1 EBADF (Bad file descriptor) [pid 5655] close(8) = -1 EBADF (Bad file descriptor) [pid 5655] close(9) = -1 EBADF (Bad file descriptor) [pid 5655] close(10) = -1 EBADF (Bad file descriptor) [pid 5655] close(11) = -1 EBADF (Bad file descriptor) [pid 5655] close(12) = -1 EBADF (Bad file descriptor) [pid 5655] close(13) = -1 EBADF (Bad file descriptor) [pid 5655] close(14) = -1 EBADF (Bad file descriptor) [pid 5655] close(15) = -1 EBADF (Bad file descriptor) [pid 5655] close(16) = -1 EBADF (Bad file descriptor) [pid 5655] close(17) = -1 EBADF (Bad file descriptor) [pid 5655] close(18) = -1 EBADF (Bad file descriptor) [pid 5655] close(19) = -1 EBADF (Bad file descriptor) [pid 5655] close(20) = -1 EBADF (Bad file descriptor) [pid 5655] close(21) = -1 EBADF (Bad file descriptor) [pid 5655] close(22) = -1 EBADF (Bad file descriptor) [pid 5655] close(23) = -1 EBADF (Bad file descriptor) [pid 5655] close(24) = -1 EBADF (Bad file descriptor) [pid 5655] close(25) = -1 EBADF (Bad file descriptor) [pid 5655] close(26) = -1 EBADF (Bad file descriptor) [pid 5655] close(27) = -1 EBADF (Bad file descriptor) [pid 5655] close(28) = -1 EBADF (Bad file descriptor) [pid 5655] close(29) = -1 EBADF (Bad file descriptor) [pid 5655] exit_group(0) = ? [pid 5655] +++ exited with 0 +++ [pid 5622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=25, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5622] restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 [pid 5622] umount2("./23", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./23", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5622] fstat(3, {st_mode=S_IFDIR|0700, st_size=160, ...}) = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 8 entries */, 32768) = 232 [pid 5622] umount2("./23/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5622] umount2("./23/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./23/bus", {st_mode=S_IFDIR|000, st_size=80, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./23/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./23/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|000, st_size=80, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 4 entries */, 32768) = 104 [pid 5622] umount2("./23/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./23/bus/index", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./23/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./23/bus/index", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./23/bus/index") = 0 [pid 5622] umount2("./23/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./23/bus/work", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./23/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./23/bus/work", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./23/bus/work") = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./23/bus") = 0 [pid 5622] umount2("./23/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./23/file0", {st_mode=S_IFDIR|0600, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./23/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./23/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|0600, st_size=40, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./23/file0") = 0 [pid 5622] umount2("./23/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./23/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./23/binderfs") = 0 [pid 5622] umount2("./23/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./23/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./23/cgroup.net") = 0 [pid 5622] umount2("./23/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./23/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./23/cgroup.cpu") = 0 [pid 5622] umount2("./23/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./23/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./23/cgroup") = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 0 entries */, 32768) = 0 [pid 5622] close(3) = 0 [pid 5622] rmdir("./23") = 0 [pid 5622] mkdir("./24", 0777) = 0 [pid 5622] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-linux-next-kasan-gce-root/strace-static-x86_64: Process 5656 attached [pid 5656] set_robust_list(0x55556a0c16e0, 24 [pid 5622] <... clone resumed>, child_tidptr=0x55556a0c16d0) = 26 [pid 5656] <... set_robust_list resumed>) = 0 [pid 5656] rt_sigprocmask(SIG_SETMASK, [] [pid 5622] rt_sigprocmask(SIG_SETMASK, [] [pid 5656] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5622] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5656] chdir("./24") = 0 [pid 5656] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5656] setpgid(0, 0) = 0 [pid 5656] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 5656] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5656] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 5656] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5656] write(3, "1000", 4) = 4 [pid 5656] close(3) = 0 [pid 5656] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5656] write(1, "executing program\n", 18) = 18 executing program [pid 5656] mkdirat(AT_FDCWD, "./file0", 0601) = 0 [pid 5656] mkdirat(AT_FDCWD, "./bus", 000) = 0 [pid 5656] mount(NULL, "./bus", "overlay", MS_NOEXEC, "workdir=./bus,lowerdir=./cgroup,upperdir=./file0,") = 0 [pid 5656] chdir("./bus") = 0 [pid 5656] mount(NULL, "./tracing", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 5656] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 3 [pid 5656] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 4 [pid 5656] close(3) = 0 [pid 5656] close(4) = 0 [pid 5656] close(5) = -1 EBADF (Bad file descriptor) [pid 5656] close(6) = -1 EBADF (Bad file descriptor) [pid 5656] close(7) = -1 EBADF (Bad file descriptor) [pid 5656] close(8) = -1 EBADF (Bad file descriptor) [pid 5656] close(9) = -1 EBADF (Bad file descriptor) [pid 5656] close(10) = -1 EBADF (Bad file descriptor) [pid 5656] close(11) = -1 EBADF (Bad file descriptor) [pid 5656] close(12) = -1 EBADF (Bad file descriptor) [pid 5656] close(13) = -1 EBADF (Bad file descriptor) [pid 5656] close(14) = -1 EBADF (Bad file descriptor) [pid 5656] close(15) = -1 EBADF (Bad file descriptor) [pid 5656] close(16) = -1 EBADF (Bad file descriptor) [pid 5656] close(17) = -1 EBADF (Bad file descriptor) [pid 5656] close(18) = -1 EBADF (Bad file descriptor) [pid 5656] close(19) = -1 EBADF (Bad file descriptor) [pid 5656] close(20) = -1 EBADF (Bad file descriptor) [pid 5656] close(21) = -1 EBADF (Bad file descriptor) [pid 5656] close(22) = -1 EBADF (Bad file descriptor) [pid 5656] close(23) = -1 EBADF (Bad file descriptor) [pid 5656] close(24) = -1 EBADF (Bad file descriptor) [pid 5656] close(25) = -1 EBADF (Bad file descriptor) [pid 5656] close(26) = -1 EBADF (Bad file descriptor) [pid 5656] close(27) = -1 EBADF (Bad file descriptor) [pid 5656] close(28) = -1 EBADF (Bad file descriptor) [pid 5656] close(29) = -1 EBADF (Bad file descriptor) [pid 5656] exit_group(0) = ? [pid 5656] +++ exited with 0 +++ [pid 5622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=26, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5622] restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 [pid 5622] umount2("./24", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./24", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5622] fstat(3, {st_mode=S_IFDIR|0700, st_size=160, ...}) = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 8 entries */, 32768) = 232 [pid 5622] umount2("./24/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5622] umount2("./24/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./24/bus", {st_mode=S_IFDIR|000, st_size=80, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./24/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./24/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|000, st_size=80, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 4 entries */, 32768) = 104 [pid 5622] umount2("./24/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./24/bus/index", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./24/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./24/bus/index", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./24/bus/index") = 0 [pid 5622] umount2("./24/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./24/bus/work", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./24/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./24/bus/work", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./24/bus/work") = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./24/bus") = 0 [pid 5622] umount2("./24/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./24/file0", {st_mode=S_IFDIR|0600, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./24/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./24/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|0600, st_size=40, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./24/file0") = 0 [pid 5622] umount2("./24/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./24/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./24/binderfs") = 0 [pid 5622] umount2("./24/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./24/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./24/cgroup.net") = 0 [pid 5622] umount2("./24/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./24/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./24/cgroup.cpu") = 0 [pid 5622] umount2("./24/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./24/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./24/cgroup") = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 0 entries */, 32768) = 0 [pid 5622] close(3) = 0 [pid 5622] rmdir("./24") = 0 [pid 5622] mkdir("./25", 0777) = 0 [pid 5622] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-linux-next-kasan-gce-root/strace-static-x86_64: Process 5657 attached , child_tidptr=0x55556a0c16d0) = 27 [pid 5657] set_robust_list(0x55556a0c16e0, 24) = 0 [pid 5657] rt_sigprocmask(SIG_SETMASK, [] [pid 5622] rt_sigprocmask(SIG_SETMASK, [] [pid 5657] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5622] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5657] chdir("./25") = 0 [pid 5657] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5657] setpgid(0, 0) = 0 [pid 5657] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 5657] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5657] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 5657] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5657] write(3, "1000", 4) = 4 [pid 5657] close(3) = 0 [pid 5657] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5657] write(1, "executing program\n", 18) = 18 executing program [pid 5657] mkdirat(AT_FDCWD, "./file0", 0601) = 0 [pid 5657] mkdirat(AT_FDCWD, "./bus", 000) = 0 [pid 5657] mount(NULL, "./bus", "overlay", MS_NOEXEC, "workdir=./bus,lowerdir=./cgroup,upperdir=./file0,") = 0 [pid 5657] chdir("./bus") = 0 [pid 5657] mount(NULL, "./tracing", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 5657] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 3 [pid 5657] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 4 [pid 5657] close(3) = 0 [pid 5657] close(4) = 0 [pid 5657] close(5) = -1 EBADF (Bad file descriptor) [pid 5657] close(6) = -1 EBADF (Bad file descriptor) [pid 5657] close(7) = -1 EBADF (Bad file descriptor) [pid 5657] close(8) = -1 EBADF (Bad file descriptor) [pid 5657] close(9) = -1 EBADF (Bad file descriptor) [pid 5657] close(10) = -1 EBADF (Bad file descriptor) [pid 5657] close(11) = -1 EBADF (Bad file descriptor) [pid 5657] close(12) = -1 EBADF (Bad file descriptor) [pid 5657] close(13) = -1 EBADF (Bad file descriptor) [pid 5657] close(14) = -1 EBADF (Bad file descriptor) [pid 5657] close(15) = -1 EBADF (Bad file descriptor) [pid 5657] close(16) = -1 EBADF (Bad file descriptor) [pid 5657] close(17) = -1 EBADF (Bad file descriptor) [pid 5657] close(18) = -1 EBADF (Bad file descriptor) [pid 5657] close(19) = -1 EBADF (Bad file descriptor) [pid 5657] close(20) = -1 EBADF (Bad file descriptor) [pid 5657] close(21) = -1 EBADF (Bad file descriptor) [pid 5657] close(22) = -1 EBADF (Bad file descriptor) [pid 5657] close(23) = -1 EBADF (Bad file descriptor) [pid 5657] close(24) = -1 EBADF (Bad file descriptor) [pid 5657] close(25) = -1 EBADF (Bad file descriptor) [pid 5657] close(26) = -1 EBADF (Bad file descriptor) [pid 5657] close(27) = -1 EBADF (Bad file descriptor) [pid 5657] close(28) = -1 EBADF (Bad file descriptor) [pid 5657] close(29) = -1 EBADF (Bad file descriptor) [pid 5657] exit_group(0) = ? [pid 5657] +++ exited with 0 +++ [pid 5622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=27, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5622] restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 [pid 5622] umount2("./25", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./25", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5622] fstat(3, {st_mode=S_IFDIR|0700, st_size=160, ...}) = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 8 entries */, 32768) = 232 [pid 5622] umount2("./25/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5622] umount2("./25/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./25/bus", {st_mode=S_IFDIR|000, st_size=80, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./25/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./25/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|000, st_size=80, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 4 entries */, 32768) = 104 [pid 5622] umount2("./25/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./25/bus/index", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./25/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./25/bus/index", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./25/bus/index") = 0 [pid 5622] umount2("./25/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./25/bus/work", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./25/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./25/bus/work", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./25/bus/work") = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./25/bus") = 0 [pid 5622] umount2("./25/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./25/file0", {st_mode=S_IFDIR|0600, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./25/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./25/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|0600, st_size=40, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./25/file0") = 0 [pid 5622] umount2("./25/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./25/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./25/binderfs") = 0 [pid 5622] umount2("./25/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./25/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./25/cgroup.net") = 0 [pid 5622] umount2("./25/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./25/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./25/cgroup.cpu") = 0 [pid 5622] umount2("./25/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./25/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./25/cgroup") = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 0 entries */, 32768) = 0 [pid 5622] close(3) = 0 [pid 5622] rmdir("./25") = 0 [pid 5622] mkdir("./26", 0777) = 0 [pid 5622] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-linux-next-kasan-gce-root/strace-static-x86_64: Process 5658 attached , child_tidptr=0x55556a0c16d0) = 28 [pid 5658] set_robust_list(0x55556a0c16e0, 24 [pid 5622] rt_sigprocmask(SIG_SETMASK, [] [pid 5658] <... set_robust_list resumed>) = 0 [pid 5658] rt_sigprocmask(SIG_SETMASK, [] [pid 5622] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5658] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5658] chdir("./26") = 0 [pid 5658] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5658] setpgid(0, 0) = 0 [pid 5658] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 5658] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5658] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 5658] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5658] write(3, "1000", 4) = 4 [pid 5658] close(3) = 0 [pid 5658] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5658] write(1, "executing program\n", 18) = 18 executing program [pid 5658] mkdirat(AT_FDCWD, "./file0", 0601) = 0 [pid 5658] mkdirat(AT_FDCWD, "./bus", 000) = 0 [pid 5658] mount(NULL, "./bus", "overlay", MS_NOEXEC, "workdir=./bus,lowerdir=./cgroup,upperdir=./file0,") = 0 [pid 5658] chdir("./bus") = 0 [pid 5658] mount(NULL, "./tracing", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 5658] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 3 [pid 5658] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 4 [pid 5658] close(3) = 0 [pid 5658] close(4) = 0 [pid 5658] close(5) = -1 EBADF (Bad file descriptor) [pid 5658] close(6) = -1 EBADF (Bad file descriptor) [pid 5658] close(7) = -1 EBADF (Bad file descriptor) [pid 5658] close(8) = -1 EBADF (Bad file descriptor) [pid 5658] close(9) = -1 EBADF (Bad file descriptor) [pid 5658] close(10) = -1 EBADF (Bad file descriptor) [pid 5658] close(11) = -1 EBADF (Bad file descriptor) [pid 5658] close(12) = -1 EBADF (Bad file descriptor) [pid 5658] close(13) = -1 EBADF (Bad file descriptor) [pid 5658] close(14) = -1 EBADF (Bad file descriptor) [pid 5658] close(15) = -1 EBADF (Bad file descriptor) [pid 5658] close(16) = -1 EBADF (Bad file descriptor) [pid 5658] close(17) = -1 EBADF (Bad file descriptor) [pid 5658] close(18) = -1 EBADF (Bad file descriptor) [pid 5658] close(19) = -1 EBADF (Bad file descriptor) [pid 5658] close(20) = -1 EBADF (Bad file descriptor) [pid 5658] close(21) = -1 EBADF (Bad file descriptor) [pid 5658] close(22) = -1 EBADF (Bad file descriptor) [pid 5658] close(23) = -1 EBADF (Bad file descriptor) [pid 5658] close(24) = -1 EBADF (Bad file descriptor) [pid 5658] close(25) = -1 EBADF (Bad file descriptor) [pid 5658] close(26) = -1 EBADF (Bad file descriptor) [pid 5658] close(27) = -1 EBADF (Bad file descriptor) [pid 5658] close(28) = -1 EBADF (Bad file descriptor) [pid 5658] close(29) = -1 EBADF (Bad file descriptor) [pid 5658] exit_group(0) = ? [pid 5658] +++ exited with 0 +++ [pid 5622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=28, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5622] restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 [pid 5622] umount2("./26", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./26", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5622] fstat(3, {st_mode=S_IFDIR|0700, st_size=160, ...}) = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 8 entries */, 32768) = 232 [pid 5622] umount2("./26/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5622] umount2("./26/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./26/bus", {st_mode=S_IFDIR|000, st_size=80, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./26/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./26/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|000, st_size=80, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 4 entries */, 32768) = 104 [pid 5622] umount2("./26/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./26/bus/index", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./26/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./26/bus/index", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./26/bus/index") = 0 [pid 5622] umount2("./26/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./26/bus/work", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./26/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./26/bus/work", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./26/bus/work") = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./26/bus") = 0 [pid 5622] umount2("./26/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./26/file0", {st_mode=S_IFDIR|0600, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./26/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./26/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|0600, st_size=40, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./26/file0") = 0 [pid 5622] umount2("./26/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./26/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./26/binderfs") = 0 [pid 5622] umount2("./26/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./26/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./26/cgroup.net") = 0 [pid 5622] umount2("./26/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./26/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./26/cgroup.cpu") = 0 [pid 5622] umount2("./26/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./26/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./26/cgroup") = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 0 entries */, 32768) = 0 [pid 5622] close(3) = 0 [pid 5622] rmdir("./26") = 0 [pid 5622] mkdir("./27", 0777) = 0 [pid 5622] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-linux-next-kasan-gce-root/strace-static-x86_64: Process 5659 attached , child_tidptr=0x55556a0c16d0) = 29 [pid 5659] set_robust_list(0x55556a0c16e0, 24 [pid 5622] rt_sigprocmask(SIG_SETMASK, [] [pid 5659] <... set_robust_list resumed>) = 0 [pid 5622] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5659] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5659] chdir("./27") = 0 [pid 5659] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5659] setpgid(0, 0) = 0 [pid 5659] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 5659] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5659] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 5659] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5659] write(3, "1000", 4) = 4 [pid 5659] close(3) = 0 [pid 5659] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5659] write(1, "executing program\n", 18) = 18 executing program [pid 5659] mkdirat(AT_FDCWD, "./file0", 0601) = 0 [pid 5659] mkdirat(AT_FDCWD, "./bus", 000) = 0 [pid 5659] mount(NULL, "./bus", "overlay", MS_NOEXEC, "workdir=./bus,lowerdir=./cgroup,upperdir=./file0,") = 0 [pid 5659] chdir("./bus") = 0 [pid 5659] mount(NULL, "./tracing", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 5659] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 3 [pid 5659] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 4 [pid 5659] close(3) = 0 [pid 5659] close(4) = 0 [pid 5659] close(5) = -1 EBADF (Bad file descriptor) [pid 5659] close(6) = -1 EBADF (Bad file descriptor) [pid 5659] close(7) = -1 EBADF (Bad file descriptor) [pid 5659] close(8) = -1 EBADF (Bad file descriptor) [pid 5659] close(9) = -1 EBADF (Bad file descriptor) [pid 5659] close(10) = -1 EBADF (Bad file descriptor) [pid 5659] close(11) = -1 EBADF (Bad file descriptor) [pid 5659] close(12) = -1 EBADF (Bad file descriptor) [pid 5659] close(13) = -1 EBADF (Bad file descriptor) [pid 5659] close(14) = -1 EBADF (Bad file descriptor) [pid 5659] close(15) = -1 EBADF (Bad file descriptor) [pid 5659] close(16) = -1 EBADF (Bad file descriptor) [pid 5659] close(17) = -1 EBADF (Bad file descriptor) [pid 5659] close(18) = -1 EBADF (Bad file descriptor) [pid 5659] close(19) = -1 EBADF (Bad file descriptor) [pid 5659] close(20) = -1 EBADF (Bad file descriptor) [pid 5659] close(21) = -1 EBADF (Bad file descriptor) [pid 5659] close(22) = -1 EBADF (Bad file descriptor) [pid 5659] close(23) = -1 EBADF (Bad file descriptor) [pid 5659] close(24) = -1 EBADF (Bad file descriptor) [pid 5659] close(25) = -1 EBADF (Bad file descriptor) [pid 5659] close(26) = -1 EBADF (Bad file descriptor) [pid 5659] close(27) = -1 EBADF (Bad file descriptor) [pid 5659] close(28) = -1 EBADF (Bad file descriptor) [pid 5659] close(29) = -1 EBADF (Bad file descriptor) [pid 5659] exit_group(0) = ? [pid 5659] +++ exited with 0 +++ [pid 5622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=29, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5622] restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 [pid 5622] umount2("./27", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./27", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5622] fstat(3, {st_mode=S_IFDIR|0700, st_size=160, ...}) = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 8 entries */, 32768) = 232 [pid 5622] umount2("./27/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5622] umount2("./27/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./27/bus", {st_mode=S_IFDIR|000, st_size=80, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./27/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./27/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|000, st_size=80, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 4 entries */, 32768) = 104 [pid 5622] umount2("./27/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./27/bus/index", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./27/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./27/bus/index", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./27/bus/index") = 0 [pid 5622] umount2("./27/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./27/bus/work", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./27/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./27/bus/work", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./27/bus/work") = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./27/bus") = 0 [pid 5622] umount2("./27/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./27/file0", {st_mode=S_IFDIR|0600, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./27/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./27/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|0600, st_size=40, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./27/file0") = 0 [pid 5622] umount2("./27/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./27/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./27/binderfs") = 0 [pid 5622] umount2("./27/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./27/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./27/cgroup.net") = 0 [pid 5622] umount2("./27/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./27/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./27/cgroup.cpu") = 0 [pid 5622] umount2("./27/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./27/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./27/cgroup") = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 0 entries */, 32768) = 0 [pid 5622] close(3) = 0 [pid 5622] rmdir("./27") = 0 [pid 5622] mkdir("./28", 0777) = 0 [pid 5622] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-linux-next-kasan-gce-root/strace-static-x86_64: Process 5660 attached , child_tidptr=0x55556a0c16d0) = 30 [pid 5622] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5660] set_robust_list(0x55556a0c16e0, 24) = 0 [pid 5660] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5660] chdir("./28") = 0 [pid 5660] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5660] setpgid(0, 0) = 0 [pid 5660] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 5660] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5660] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 5660] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5660] write(3, "1000", 4) = 4 [pid 5660] close(3) = 0 [pid 5660] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5660] write(1, "executing program\n", 18) = 18 executing program [pid 5660] mkdirat(AT_FDCWD, "./file0", 0601) = 0 [pid 5660] mkdirat(AT_FDCWD, "./bus", 000) = 0 [pid 5660] mount(NULL, "./bus", "overlay", MS_NOEXEC, "workdir=./bus,lowerdir=./cgroup,upperdir=./file0,") = 0 [pid 5660] chdir("./bus") = 0 [pid 5660] mount(NULL, "./tracing", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 5660] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 3 [pid 5660] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 4 [pid 5660] close(3) = 0 [pid 5660] close(4) = 0 [pid 5660] close(5) = -1 EBADF (Bad file descriptor) [pid 5660] close(6) = -1 EBADF (Bad file descriptor) [pid 5660] close(7) = -1 EBADF (Bad file descriptor) [pid 5660] close(8) = -1 EBADF (Bad file descriptor) [pid 5660] close(9) = -1 EBADF (Bad file descriptor) [pid 5660] close(10) = -1 EBADF (Bad file descriptor) [pid 5660] close(11) = -1 EBADF (Bad file descriptor) [pid 5660] close(12) = -1 EBADF (Bad file descriptor) [pid 5660] close(13) = -1 EBADF (Bad file descriptor) [pid 5660] close(14) = -1 EBADF (Bad file descriptor) [pid 5660] close(15) = -1 EBADF (Bad file descriptor) [pid 5660] close(16) = -1 EBADF (Bad file descriptor) [pid 5660] close(17) = -1 EBADF (Bad file descriptor) [pid 5660] close(18) = -1 EBADF (Bad file descriptor) [pid 5660] close(19) = -1 EBADF (Bad file descriptor) [pid 5660] close(20) = -1 EBADF (Bad file descriptor) [pid 5660] close(21) = -1 EBADF (Bad file descriptor) [pid 5660] close(22) = -1 EBADF (Bad file descriptor) [pid 5660] close(23) = -1 EBADF (Bad file descriptor) [pid 5660] close(24) = -1 EBADF (Bad file descriptor) [pid 5660] close(25) = -1 EBADF (Bad file descriptor) [pid 5660] close(26) = -1 EBADF (Bad file descriptor) [pid 5660] close(27) = -1 EBADF (Bad file descriptor) [pid 5660] close(28) = -1 EBADF (Bad file descriptor) [pid 5660] close(29) = -1 EBADF (Bad file descriptor) [pid 5660] exit_group(0) = ? [pid 5660] +++ exited with 0 +++ [pid 5622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=30, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5622] restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 [pid 5622] umount2("./28", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./28", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5622] fstat(3, {st_mode=S_IFDIR|0700, st_size=160, ...}) = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 8 entries */, 32768) = 232 [pid 5622] umount2("./28/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5622] umount2("./28/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./28/bus", {st_mode=S_IFDIR|000, st_size=80, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./28/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./28/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|000, st_size=80, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 4 entries */, 32768) = 104 [pid 5622] umount2("./28/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./28/bus/index", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./28/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./28/bus/index", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./28/bus/index") = 0 [pid 5622] umount2("./28/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./28/bus/work", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./28/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./28/bus/work", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./28/bus/work") = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./28/bus") = 0 [pid 5622] umount2("./28/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./28/file0", {st_mode=S_IFDIR|0600, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./28/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./28/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|0600, st_size=40, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./28/file0") = 0 [pid 5622] umount2("./28/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./28/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./28/binderfs") = 0 [pid 5622] umount2("./28/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./28/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./28/cgroup.net") = 0 [pid 5622] umount2("./28/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./28/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./28/cgroup.cpu") = 0 [pid 5622] umount2("./28/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./28/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./28/cgroup") = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 0 entries */, 32768) = 0 [pid 5622] close(3) = 0 [pid 5622] rmdir("./28") = 0 [pid 5622] mkdir("./29", 0777) = 0 [pid 5622] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-linux-next-kasan-gce-root/strace-static-x86_64: Process 5661 attached , child_tidptr=0x55556a0c16d0) = 31 [pid 5622] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5661] set_robust_list(0x55556a0c16e0, 24) = 0 [pid 5661] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5661] chdir("./29") = 0 [pid 5661] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5661] setpgid(0, 0) = 0 [pid 5661] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 5661] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5661] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 5661] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5661] write(3, "1000", 4) = 4 [pid 5661] close(3) = 0 [pid 5661] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5661] write(1, "executing program\n", 18) = 18 executing program [pid 5661] mkdirat(AT_FDCWD, "./file0", 0601) = 0 [pid 5661] mkdirat(AT_FDCWD, "./bus", 000) = 0 [pid 5661] mount(NULL, "./bus", "overlay", MS_NOEXEC, "workdir=./bus,lowerdir=./cgroup,upperdir=./file0,") = 0 [pid 5661] chdir("./bus") = 0 [pid 5661] mount(NULL, "./tracing", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 5661] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 3 [pid 5661] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 4 [pid 5661] close(3) = 0 [pid 5661] close(4) = 0 [pid 5661] close(5) = -1 EBADF (Bad file descriptor) [pid 5661] close(6) = -1 EBADF (Bad file descriptor) [pid 5661] close(7) = -1 EBADF (Bad file descriptor) [pid 5661] close(8) = -1 EBADF (Bad file descriptor) [pid 5661] close(9) = -1 EBADF (Bad file descriptor) [pid 5661] close(10) = -1 EBADF (Bad file descriptor) [pid 5661] close(11) = -1 EBADF (Bad file descriptor) [pid 5661] close(12) = -1 EBADF (Bad file descriptor) [pid 5661] close(13) = -1 EBADF (Bad file descriptor) [pid 5661] close(14) = -1 EBADF (Bad file descriptor) [pid 5661] close(15) = -1 EBADF (Bad file descriptor) [pid 5661] close(16) = -1 EBADF (Bad file descriptor) [pid 5661] close(17) = -1 EBADF (Bad file descriptor) [pid 5661] close(18) = -1 EBADF (Bad file descriptor) [pid 5661] close(19) = -1 EBADF (Bad file descriptor) [pid 5661] close(20) = -1 EBADF (Bad file descriptor) [pid 5661] close(21) = -1 EBADF (Bad file descriptor) [pid 5661] close(22) = -1 EBADF (Bad file descriptor) [pid 5661] close(23) = -1 EBADF (Bad file descriptor) [pid 5661] close(24) = -1 EBADF (Bad file descriptor) [pid 5661] close(25) = -1 EBADF (Bad file descriptor) [pid 5661] close(26) = -1 EBADF (Bad file descriptor) [pid 5661] close(27) = -1 EBADF (Bad file descriptor) [pid 5661] close(28) = -1 EBADF (Bad file descriptor) [pid 5661] close(29) = -1 EBADF (Bad file descriptor) [pid 5661] exit_group(0) = ? [pid 5661] +++ exited with 0 +++ [pid 5622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=31, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5622] restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 [pid 5622] umount2("./29", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./29", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5622] fstat(3, {st_mode=S_IFDIR|0700, st_size=160, ...}) = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 8 entries */, 32768) = 232 [pid 5622] umount2("./29/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5622] umount2("./29/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./29/bus", {st_mode=S_IFDIR|000, st_size=80, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./29/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./29/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|000, st_size=80, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 4 entries */, 32768) = 104 [pid 5622] umount2("./29/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./29/bus/index", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./29/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./29/bus/index", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./29/bus/index") = 0 [pid 5622] umount2("./29/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./29/bus/work", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./29/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./29/bus/work", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./29/bus/work") = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./29/bus") = 0 [pid 5622] umount2("./29/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./29/file0", {st_mode=S_IFDIR|0600, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./29/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./29/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|0600, st_size=40, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./29/file0") = 0 [pid 5622] umount2("./29/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./29/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./29/binderfs") = 0 [pid 5622] umount2("./29/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./29/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./29/cgroup.net") = 0 [pid 5622] umount2("./29/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./29/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./29/cgroup.cpu") = 0 [pid 5622] umount2("./29/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./29/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./29/cgroup") = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 0 entries */, 32768) = 0 [pid 5622] close(3) = 0 [pid 5622] rmdir("./29") = 0 [pid 5622] mkdir("./30", 0777) = 0 [pid 5622] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-linux-next-kasan-gce-root/strace-static-x86_64: Process 5662 attached , child_tidptr=0x55556a0c16d0) = 32 [pid 5622] rt_sigprocmask(SIG_SETMASK, [] [pid 5662] set_robust_list(0x55556a0c16e0, 24 [pid 5622] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5662] <... set_robust_list resumed>) = 0 [pid 5662] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5662] chdir("./30") = 0 [pid 5662] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5662] setpgid(0, 0) = 0 [pid 5662] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 5662] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5662] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 5662] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5662] write(3, "1000", 4) = 4 [pid 5662] close(3) = 0 [pid 5662] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5662] write(1, "executing program\n", 18) = 18 [pid 5662] mkdirat(AT_FDCWD, "./file0", 0601) = 0 [pid 5662] mkdirat(AT_FDCWD, "./bus", 000) = 0 [pid 5662] mount(NULL, "./bus", "overlay", MS_NOEXEC, "workdir=./bus,lowerdir=./cgroup,upperdir=./file0,") = 0 [pid 5662] chdir("./bus") = 0 [pid 5662] mount(NULL, "./tracing", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 5662] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 3 [pid 5662] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 4 [pid 5662] close(3) = 0 [pid 5662] close(4) = 0 executing program [pid 5662] close(5) = -1 EBADF (Bad file descriptor) [pid 5662] close(6) = -1 EBADF (Bad file descriptor) [pid 5662] close(7) = -1 EBADF (Bad file descriptor) [pid 5662] close(8) = -1 EBADF (Bad file descriptor) [pid 5662] close(9) = -1 EBADF (Bad file descriptor) [pid 5662] close(10) = -1 EBADF (Bad file descriptor) [pid 5662] close(11) = -1 EBADF (Bad file descriptor) [pid 5662] close(12) = -1 EBADF (Bad file descriptor) [pid 5662] close(13) = -1 EBADF (Bad file descriptor) [pid 5662] close(14) = -1 EBADF (Bad file descriptor) [pid 5662] close(15) = -1 EBADF (Bad file descriptor) [pid 5662] close(16) = -1 EBADF (Bad file descriptor) [pid 5662] close(17) = -1 EBADF (Bad file descriptor) [pid 5662] close(18) = -1 EBADF (Bad file descriptor) [pid 5662] close(19) = -1 EBADF (Bad file descriptor) [pid 5662] close(20) = -1 EBADF (Bad file descriptor) [pid 5662] close(21) = -1 EBADF (Bad file descriptor) [pid 5662] close(22) = -1 EBADF (Bad file descriptor) [pid 5662] close(23) = -1 EBADF (Bad file descriptor) [pid 5662] close(24) = -1 EBADF (Bad file descriptor) [pid 5662] close(25) = -1 EBADF (Bad file descriptor) [pid 5662] close(26) = -1 EBADF (Bad file descriptor) [pid 5662] close(27) = -1 EBADF (Bad file descriptor) [pid 5662] close(28) = -1 EBADF (Bad file descriptor) [pid 5662] close(29) = -1 EBADF (Bad file descriptor) [pid 5662] exit_group(0) = ? [pid 5662] +++ exited with 0 +++ [pid 5622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=32, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5622] restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 [pid 5622] umount2("./30", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./30", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5622] fstat(3, {st_mode=S_IFDIR|0700, st_size=160, ...}) = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 8 entries */, 32768) = 232 [pid 5622] umount2("./30/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5622] umount2("./30/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./30/bus", {st_mode=S_IFDIR|000, st_size=80, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./30/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./30/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|000, st_size=80, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 4 entries */, 32768) = 104 [pid 5622] umount2("./30/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./30/bus/index", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./30/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./30/bus/index", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./30/bus/index") = 0 [pid 5622] umount2("./30/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./30/bus/work", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./30/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./30/bus/work", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./30/bus/work") = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./30/bus") = 0 [pid 5622] umount2("./30/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./30/file0", {st_mode=S_IFDIR|0600, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./30/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./30/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|0600, st_size=40, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./30/file0") = 0 [pid 5622] umount2("./30/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./30/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./30/binderfs") = 0 [pid 5622] umount2("./30/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./30/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./30/cgroup.net") = 0 [pid 5622] umount2("./30/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./30/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./30/cgroup.cpu") = 0 [pid 5622] umount2("./30/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./30/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./30/cgroup") = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 0 entries */, 32768) = 0 [pid 5622] close(3) = 0 [pid 5622] rmdir("./30") = 0 [pid 5622] mkdir("./31", 0777) = 0 [pid 5622] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-linux-next-kasan-gce-root/strace-static-x86_64: Process 5663 attached [pid 5663] set_robust_list(0x55556a0c16e0, 24) = 0 [pid 5663] rt_sigprocmask(SIG_SETMASK, [] [pid 5622] <... clone resumed>, child_tidptr=0x55556a0c16d0) = 33 [pid 5663] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5663] chdir("./31") = 0 [pid 5622] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5663] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5663] setpgid(0, 0) = 0 [pid 5663] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 5663] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5663] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 5663] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5663] write(3, "1000", 4) = 4 [pid 5663] close(3) = 0 [pid 5663] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5663] write(1, "executing program\n", 18) = 18 [pid 5663] mkdirat(AT_FDCWD, "./file0", 0601) = 0 [pid 5663] mkdirat(AT_FDCWD, "./bus", 000) = 0 [pid 5663] mount(NULL, "./bus", "overlay", MS_NOEXEC, "workdir=./bus,lowerdir=./cgroup,upperdir=./file0,") = 0 [pid 5663] chdir("./bus") = 0 [pid 5663] mount(NULL, "./tracing", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 5663] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 3 [pid 5663] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 4 [pid 5663] close(3) = 0 [pid 5663] close(4) = 0 [pid 5663] close(5) = -1 EBADF (Bad file descriptor) [pid 5663] close(6) = -1 EBADF (Bad file descriptor) [pid 5663] close(7) = -1 EBADF (Bad file descriptor) [pid 5663] close(8) = -1 EBADF (Bad file descriptor) [pid 5663] close(9) = -1 EBADF (Bad file descriptor) [pid 5663] close(10) = -1 EBADF (Bad file descriptor) [pid 5663] close(11) = -1 EBADF (Bad file descriptor) [pid 5663] close(12) = -1 EBADF (Bad file descriptor) [pid 5663] close(13) = -1 EBADF (Bad file descriptor) [pid 5663] close(14) = -1 EBADF (Bad file descriptor) [pid 5663] close(15) = -1 EBADF (Bad file descriptor) [pid 5663] close(16) = -1 EBADF (Bad file descriptor) [pid 5663] close(17) = -1 EBADF (Bad file descriptor) [pid 5663] close(18) = -1 EBADF (Bad file descriptor) [pid 5663] close(19) = -1 EBADF (Bad file descriptor) [pid 5663] close(20) = -1 EBADF (Bad file descriptor) [pid 5663] close(21) = -1 EBADF (Bad file descriptor) [pid 5663] close(22) = -1 EBADF (Bad file descriptor) [pid 5663] close(23) = -1 EBADF (Bad file descriptor) [pid 5663] close(24) = -1 EBADF (Bad file descriptor) [pid 5663] close(25) = -1 EBADF (Bad file descriptor) [pid 5663] close(26) = -1 EBADF (Bad file descriptor) [pid 5663] close(27) = -1 EBADF (Bad file descriptor) [pid 5663] close(28) = -1 EBADF (Bad file descriptor) [pid 5663] close(29) = -1 EBADF (Bad file descriptor) [pid 5663] exit_group(0) = ? [pid 5663] +++ exited with 0 +++ [pid 5622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=33, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5622] restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 [pid 5622] umount2("./31", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./31", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5622] fstat(3, {st_mode=S_IFDIR|0700, st_size=160, ...}) = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 8 entries */, 32768) = 232 [pid 5622] umount2("./31/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5622] umount2("./31/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./31/bus", {st_mode=S_IFDIR|000, st_size=80, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./31/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./31/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|000, st_size=80, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 4 entries */, 32768) = 104 [pid 5622] umount2("./31/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./31/bus/index", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./31/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./31/bus/index", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./31/bus/index") = 0 [pid 5622] umount2("./31/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./31/bus/work", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./31/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./31/bus/work", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./31/bus/work") = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./31/bus") = 0 [pid 5622] umount2("./31/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./31/file0", {st_mode=S_IFDIR|0600, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./31/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./31/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|0600, st_size=40, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./31/file0") = 0 [pid 5622] umount2("./31/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./31/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./31/binderfs") = 0 [pid 5622] umount2("./31/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./31/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./31/cgroup.net") = 0 [pid 5622] umount2("./31/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./31/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./31/cgroup.cpu") = 0 [pid 5622] umount2("./31/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./31/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./31/cgroup") = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 0 entries */, 32768) = 0 [pid 5622] close(3) = 0 [pid 5622] rmdir("./31") = 0 [pid 5622] mkdir("./32", 0777) = 0 [pid 5622] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-linux-next-kasan-gce-root/strace-static-x86_64: Process 5664 attached [pid 5664] set_robust_list(0x55556a0c16e0, 24 [pid 5622] <... clone resumed>, child_tidptr=0x55556a0c16d0) = 34 [pid 5664] <... set_robust_list resumed>) = 0 [pid 5664] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5622] rt_sigprocmask(SIG_SETMASK, [] [pid 5664] chdir("./32" [pid 5622] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5664] <... chdir resumed>) = 0 [pid 5664] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5664] setpgid(0, 0) = 0 [pid 5664] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 5664] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5664] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 5664] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5664] write(3, "1000", 4) = 4 [pid 5664] close(3) = 0 [pid 5664] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5664] write(1, "executing program\n", 18) = 18 executing program [pid 5664] mkdirat(AT_FDCWD, "./file0", 0601) = 0 [pid 5664] mkdirat(AT_FDCWD, "./bus", 000) = 0 [pid 5664] mount(NULL, "./bus", "overlay", MS_NOEXEC, "workdir=./bus,lowerdir=./cgroup,upperdir=./file0,") = 0 [pid 5664] chdir("./bus") = 0 [pid 5664] mount(NULL, "./tracing", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 5664] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 3 [pid 5664] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 4 [pid 5664] close(3) = 0 [pid 5664] close(4) = 0 [pid 5664] close(5) = -1 EBADF (Bad file descriptor) [pid 5664] close(6) = -1 EBADF (Bad file descriptor) [pid 5664] close(7) = -1 EBADF (Bad file descriptor) [pid 5664] close(8) = -1 EBADF (Bad file descriptor) [pid 5664] close(9) = -1 EBADF (Bad file descriptor) [pid 5664] close(10) = -1 EBADF (Bad file descriptor) [pid 5664] close(11) = -1 EBADF (Bad file descriptor) [pid 5664] close(12) = -1 EBADF (Bad file descriptor) [pid 5664] close(13) = -1 EBADF (Bad file descriptor) [pid 5664] close(14) = -1 EBADF (Bad file descriptor) [pid 5664] close(15) = -1 EBADF (Bad file descriptor) [pid 5664] close(16) = -1 EBADF (Bad file descriptor) [pid 5664] close(17) = -1 EBADF (Bad file descriptor) [pid 5664] close(18) = -1 EBADF (Bad file descriptor) [pid 5664] close(19) = -1 EBADF (Bad file descriptor) [pid 5664] close(20) = -1 EBADF (Bad file descriptor) [pid 5664] close(21) = -1 EBADF (Bad file descriptor) [pid 5664] close(22) = -1 EBADF (Bad file descriptor) [pid 5664] close(23) = -1 EBADF (Bad file descriptor) [pid 5664] close(24) = -1 EBADF (Bad file descriptor) [pid 5664] close(25) = -1 EBADF (Bad file descriptor) [pid 5664] close(26) = -1 EBADF (Bad file descriptor) [pid 5664] close(27) = -1 EBADF (Bad file descriptor) [pid 5664] close(28) = -1 EBADF (Bad file descriptor) [pid 5664] close(29) = -1 EBADF (Bad file descriptor) [pid 5664] exit_group(0) = ? [pid 5664] +++ exited with 0 +++ [pid 5622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=34, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5622] restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 [pid 5622] umount2("./32", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./32", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5622] fstat(3, {st_mode=S_IFDIR|0700, st_size=160, ...}) = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 8 entries */, 32768) = 232 [pid 5622] umount2("./32/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5622] umount2("./32/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./32/bus", {st_mode=S_IFDIR|000, st_size=80, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./32/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./32/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|000, st_size=80, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 4 entries */, 32768) = 104 [pid 5622] umount2("./32/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./32/bus/index", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./32/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./32/bus/index", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./32/bus/index") = 0 [pid 5622] umount2("./32/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./32/bus/work", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./32/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./32/bus/work", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./32/bus/work") = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./32/bus") = 0 [pid 5622] umount2("./32/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./32/file0", {st_mode=S_IFDIR|0600, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./32/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./32/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|0600, st_size=40, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./32/file0") = 0 [pid 5622] umount2("./32/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./32/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./32/binderfs") = 0 [pid 5622] umount2("./32/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./32/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./32/cgroup.net") = 0 [pid 5622] umount2("./32/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./32/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./32/cgroup.cpu") = 0 [pid 5622] umount2("./32/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./32/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./32/cgroup") = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 0 entries */, 32768) = 0 [pid 5622] close(3) = 0 [pid 5622] rmdir("./32") = 0 [pid 5622] mkdir("./33", 0777) = 0 [pid 5622] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-linux-next-kasan-gce-root/strace-static-x86_64: Process 5665 attached [pid 5665] set_robust_list(0x55556a0c16e0, 24 [pid 5622] <... clone resumed>, child_tidptr=0x55556a0c16d0) = 35 [pid 5665] <... set_robust_list resumed>) = 0 [pid 5665] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5622] rt_sigprocmask(SIG_SETMASK, [] [pid 5665] chdir("./33" [pid 5622] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5665] <... chdir resumed>) = 0 [pid 5665] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5665] setpgid(0, 0) = 0 [pid 5665] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 5665] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5665] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 5665] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5665] write(3, "1000", 4) = 4 [pid 5665] close(3) = 0 [pid 5665] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5665] write(1, "executing program\n", 18) = 18 executing program [pid 5665] mkdirat(AT_FDCWD, "./file0", 0601) = 0 [pid 5665] mkdirat(AT_FDCWD, "./bus", 000) = 0 [pid 5665] mount(NULL, "./bus", "overlay", MS_NOEXEC, "workdir=./bus,lowerdir=./cgroup,upperdir=./file0,") = 0 [pid 5665] chdir("./bus") = 0 [pid 5665] mount(NULL, "./tracing", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 5665] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 3 [pid 5665] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 4 [pid 5665] close(3) = 0 [pid 5665] close(4) = 0 [pid 5665] close(5) = -1 EBADF (Bad file descriptor) [pid 5665] close(6) = -1 EBADF (Bad file descriptor) [pid 5665] close(7) = -1 EBADF (Bad file descriptor) [pid 5665] close(8) = -1 EBADF (Bad file descriptor) [pid 5665] close(9) = -1 EBADF (Bad file descriptor) [pid 5665] close(10) = -1 EBADF (Bad file descriptor) [pid 5665] close(11) = -1 EBADF (Bad file descriptor) [pid 5665] close(12) = -1 EBADF (Bad file descriptor) [pid 5665] close(13) = -1 EBADF (Bad file descriptor) [pid 5665] close(14) = -1 EBADF (Bad file descriptor) [pid 5665] close(15) = -1 EBADF (Bad file descriptor) [pid 5665] close(16) = -1 EBADF (Bad file descriptor) [pid 5665] close(17) = -1 EBADF (Bad file descriptor) [pid 5665] close(18) = -1 EBADF (Bad file descriptor) [pid 5665] close(19) = -1 EBADF (Bad file descriptor) [pid 5665] close(20) = -1 EBADF (Bad file descriptor) [pid 5665] close(21) = -1 EBADF (Bad file descriptor) [pid 5665] close(22) = -1 EBADF (Bad file descriptor) [pid 5665] close(23) = -1 EBADF (Bad file descriptor) [pid 5665] close(24) = -1 EBADF (Bad file descriptor) [pid 5665] close(25) = -1 EBADF (Bad file descriptor) [pid 5665] close(26) = -1 EBADF (Bad file descriptor) [pid 5665] close(27) = -1 EBADF (Bad file descriptor) [pid 5665] close(28) = -1 EBADF (Bad file descriptor) [pid 5665] close(29) = -1 EBADF (Bad file descriptor) [pid 5665] exit_group(0) = ? [pid 5665] +++ exited with 0 +++ [pid 5622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=35, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5622] restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 [pid 5622] umount2("./33", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./33", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5622] fstat(3, {st_mode=S_IFDIR|0700, st_size=160, ...}) = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 8 entries */, 32768) = 232 [pid 5622] umount2("./33/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5622] umount2("./33/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./33/bus", {st_mode=S_IFDIR|000, st_size=80, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./33/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./33/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|000, st_size=80, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 4 entries */, 32768) = 104 [pid 5622] umount2("./33/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./33/bus/index", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./33/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./33/bus/index", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./33/bus/index") = 0 [pid 5622] umount2("./33/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./33/bus/work", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./33/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./33/bus/work", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./33/bus/work") = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./33/bus") = 0 [pid 5622] umount2("./33/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./33/file0", {st_mode=S_IFDIR|0600, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./33/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./33/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|0600, st_size=40, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./33/file0") = 0 [pid 5622] umount2("./33/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./33/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./33/binderfs") = 0 [pid 5622] umount2("./33/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./33/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./33/cgroup.net") = 0 [pid 5622] umount2("./33/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./33/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./33/cgroup.cpu") = 0 [pid 5622] umount2("./33/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./33/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./33/cgroup") = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 0 entries */, 32768) = 0 [pid 5622] close(3) = 0 [pid 5622] rmdir("./33") = 0 [pid 5622] mkdir("./34", 0777) = 0 [pid 5622] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-linux-next-kasan-gce-root/strace-static-x86_64: Process 5666 attached , child_tidptr=0x55556a0c16d0) = 36 [pid 5666] set_robust_list(0x55556a0c16e0, 24 [pid 5622] rt_sigprocmask(SIG_SETMASK, [] [pid 5666] <... set_robust_list resumed>) = 0 [pid 5622] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5666] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5666] chdir("./34") = 0 [pid 5666] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5666] setpgid(0, 0) = 0 [pid 5666] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 5666] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5666] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 5666] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5666] write(3, "1000", 4) = 4 [pid 5666] close(3) = 0 executing program [pid 5666] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5666] write(1, "executing program\n", 18) = 18 [pid 5666] mkdirat(AT_FDCWD, "./file0", 0601) = 0 [pid 5666] mkdirat(AT_FDCWD, "./bus", 000) = 0 [pid 5666] mount(NULL, "./bus", "overlay", MS_NOEXEC, "workdir=./bus,lowerdir=./cgroup,upperdir=./file0,") = 0 [pid 5666] chdir("./bus") = 0 [pid 5666] mount(NULL, "./tracing", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 5666] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 3 [pid 5666] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 4 [pid 5666] close(3) = 0 [pid 5666] close(4) = 0 [pid 5666] close(5) = -1 EBADF (Bad file descriptor) [pid 5666] close(6) = -1 EBADF (Bad file descriptor) [pid 5666] close(7) = -1 EBADF (Bad file descriptor) [pid 5666] close(8) = -1 EBADF (Bad file descriptor) [pid 5666] close(9) = -1 EBADF (Bad file descriptor) [pid 5666] close(10) = -1 EBADF (Bad file descriptor) [pid 5666] close(11) = -1 EBADF (Bad file descriptor) [pid 5666] close(12) = -1 EBADF (Bad file descriptor) [pid 5666] close(13) = -1 EBADF (Bad file descriptor) [pid 5666] close(14) = -1 EBADF (Bad file descriptor) [pid 5666] close(15) = -1 EBADF (Bad file descriptor) [pid 5666] close(16) = -1 EBADF (Bad file descriptor) [pid 5666] close(17) = -1 EBADF (Bad file descriptor) [pid 5666] close(18) = -1 EBADF (Bad file descriptor) [pid 5666] close(19) = -1 EBADF (Bad file descriptor) [pid 5666] close(20) = -1 EBADF (Bad file descriptor) [pid 5666] close(21) = -1 EBADF (Bad file descriptor) [pid 5666] close(22) = -1 EBADF (Bad file descriptor) [pid 5666] close(23) = -1 EBADF (Bad file descriptor) [pid 5666] close(24) = -1 EBADF (Bad file descriptor) [pid 5666] close(25) = -1 EBADF (Bad file descriptor) [pid 5666] close(26) = -1 EBADF (Bad file descriptor) [pid 5666] close(27) = -1 EBADF (Bad file descriptor) [pid 5666] close(28) = -1 EBADF (Bad file descriptor) [pid 5666] close(29) = -1 EBADF (Bad file descriptor) [pid 5666] exit_group(0) = ? [pid 5666] +++ exited with 0 +++ [pid 5622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=36, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5622] restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 [pid 5622] umount2("./34", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./34", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5622] fstat(3, {st_mode=S_IFDIR|0700, st_size=160, ...}) = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 8 entries */, 32768) = 232 [pid 5622] umount2("./34/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5622] umount2("./34/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./34/bus", {st_mode=S_IFDIR|000, st_size=80, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./34/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./34/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|000, st_size=80, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 4 entries */, 32768) = 104 [pid 5622] umount2("./34/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./34/bus/index", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./34/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./34/bus/index", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./34/bus/index") = 0 [pid 5622] umount2("./34/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./34/bus/work", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./34/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./34/bus/work", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./34/bus/work") = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./34/bus") = 0 [pid 5622] umount2("./34/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./34/file0", {st_mode=S_IFDIR|0600, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./34/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./34/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|0600, st_size=40, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./34/file0") = 0 [pid 5622] umount2("./34/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./34/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./34/binderfs") = 0 [pid 5622] umount2("./34/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./34/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./34/cgroup.net") = 0 [pid 5622] umount2("./34/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./34/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./34/cgroup.cpu") = 0 [pid 5622] umount2("./34/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./34/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./34/cgroup") = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 0 entries */, 32768) = 0 [pid 5622] close(3) = 0 [pid 5622] rmdir("./34") = 0 [pid 5622] mkdir("./35", 0777) = 0 [pid 5622] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-linux-next-kasan-gce-root/strace-static-x86_64: Process 5667 attached , child_tidptr=0x55556a0c16d0) = 37 [pid 5667] set_robust_list(0x55556a0c16e0, 24 [pid 5622] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5667] <... set_robust_list resumed>) = 0 [pid 5667] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5667] chdir("./35") = 0 [pid 5667] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5667] setpgid(0, 0) = 0 [pid 5667] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 5667] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5667] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 5667] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5667] write(3, "1000", 4) = 4 [pid 5667] close(3) = 0 executing program [pid 5667] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5667] write(1, "executing program\n", 18) = 18 [pid 5667] mkdirat(AT_FDCWD, "./file0", 0601) = 0 [pid 5667] mkdirat(AT_FDCWD, "./bus", 000) = 0 [pid 5667] mount(NULL, "./bus", "overlay", MS_NOEXEC, "workdir=./bus,lowerdir=./cgroup,upperdir=./file0,") = 0 [pid 5667] chdir("./bus") = 0 [pid 5667] mount(NULL, "./tracing", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 5667] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 3 [pid 5667] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 4 [pid 5667] close(3) = 0 [pid 5667] close(4) = 0 [pid 5667] close(5) = -1 EBADF (Bad file descriptor) [pid 5667] close(6) = -1 EBADF (Bad file descriptor) [pid 5667] close(7) = -1 EBADF (Bad file descriptor) [pid 5667] close(8) = -1 EBADF (Bad file descriptor) [pid 5667] close(9) = -1 EBADF (Bad file descriptor) [pid 5667] close(10) = -1 EBADF (Bad file descriptor) [pid 5667] close(11) = -1 EBADF (Bad file descriptor) [pid 5667] close(12) = -1 EBADF (Bad file descriptor) [pid 5667] close(13) = -1 EBADF (Bad file descriptor) [pid 5667] close(14) = -1 EBADF (Bad file descriptor) [pid 5667] close(15) = -1 EBADF (Bad file descriptor) [pid 5667] close(16) = -1 EBADF (Bad file descriptor) [pid 5667] close(17) = -1 EBADF (Bad file descriptor) [pid 5667] close(18) = -1 EBADF (Bad file descriptor) [pid 5667] close(19) = -1 EBADF (Bad file descriptor) [pid 5667] close(20) = -1 EBADF (Bad file descriptor) [pid 5667] close(21) = -1 EBADF (Bad file descriptor) [pid 5667] close(22) = -1 EBADF (Bad file descriptor) [pid 5667] close(23) = -1 EBADF (Bad file descriptor) [pid 5667] close(24) = -1 EBADF (Bad file descriptor) [pid 5667] close(25) = -1 EBADF (Bad file descriptor) [pid 5667] close(26) = -1 EBADF (Bad file descriptor) [pid 5667] close(27) = -1 EBADF (Bad file descriptor) [pid 5667] close(28) = -1 EBADF (Bad file descriptor) [pid 5667] close(29) = -1 EBADF (Bad file descriptor) [pid 5667] exit_group(0) = ? [pid 5667] +++ exited with 0 +++ [pid 5622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=37, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5622] restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 [pid 5622] umount2("./35", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./35", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5622] fstat(3, {st_mode=S_IFDIR|0700, st_size=160, ...}) = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 8 entries */, 32768) = 232 [pid 5622] umount2("./35/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5622] umount2("./35/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./35/bus", {st_mode=S_IFDIR|000, st_size=80, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./35/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./35/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|000, st_size=80, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 4 entries */, 32768) = 104 [pid 5622] umount2("./35/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./35/bus/index", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./35/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./35/bus/index", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./35/bus/index") = 0 [pid 5622] umount2("./35/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./35/bus/work", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./35/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./35/bus/work", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./35/bus/work") = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./35/bus") = 0 [pid 5622] umount2("./35/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./35/file0", {st_mode=S_IFDIR|0600, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./35/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./35/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|0600, st_size=40, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./35/file0") = 0 [pid 5622] umount2("./35/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./35/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./35/binderfs") = 0 [pid 5622] umount2("./35/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./35/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./35/cgroup.net") = 0 [pid 5622] umount2("./35/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./35/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./35/cgroup.cpu") = 0 [pid 5622] umount2("./35/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./35/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./35/cgroup") = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 0 entries */, 32768) = 0 [pid 5622] close(3) = 0 [pid 5622] rmdir("./35") = 0 [pid 5622] mkdir("./36", 0777) = 0 [pid 5622] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556a0c16d0) = 38 ci-upstream-linux-next-kasan-gce-root/strace-static-x86_64: Process 5668 attached [pid 5622] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5668] set_robust_list(0x55556a0c16e0, 24) = 0 [pid 5668] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5668] chdir("./36") = 0 [pid 5668] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5668] setpgid(0, 0) = 0 [pid 5668] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 5668] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5668] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 5668] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5668] write(3, "1000", 4) = 4 [pid 5668] close(3) = 0 [pid 5668] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5668] write(1, "executing program\n", 18) = 18 executing program [pid 5668] mkdirat(AT_FDCWD, "./file0", 0601) = 0 [pid 5668] mkdirat(AT_FDCWD, "./bus", 000) = 0 [pid 5668] mount(NULL, "./bus", "overlay", MS_NOEXEC, "workdir=./bus,lowerdir=./cgroup,upperdir=./file0,") = 0 [pid 5668] chdir("./bus") = 0 [pid 5668] mount(NULL, "./tracing", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 5668] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 3 [pid 5668] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 4 [pid 5668] close(3) = 0 [pid 5668] close(4) = 0 [pid 5668] close(5) = -1 EBADF (Bad file descriptor) [pid 5668] close(6) = -1 EBADF (Bad file descriptor) [pid 5668] close(7) = -1 EBADF (Bad file descriptor) [pid 5668] close(8) = -1 EBADF (Bad file descriptor) [pid 5668] close(9) = -1 EBADF (Bad file descriptor) [pid 5668] close(10) = -1 EBADF (Bad file descriptor) [pid 5668] close(11) = -1 EBADF (Bad file descriptor) [pid 5668] close(12) = -1 EBADF (Bad file descriptor) [pid 5668] close(13) = -1 EBADF (Bad file descriptor) [pid 5668] close(14) = -1 EBADF (Bad file descriptor) [pid 5668] close(15) = -1 EBADF (Bad file descriptor) [pid 5668] close(16) = -1 EBADF (Bad file descriptor) [pid 5668] close(17) = -1 EBADF (Bad file descriptor) [pid 5668] close(18) = -1 EBADF (Bad file descriptor) [pid 5668] close(19) = -1 EBADF (Bad file descriptor) [pid 5668] close(20) = -1 EBADF (Bad file descriptor) [pid 5668] close(21) = -1 EBADF (Bad file descriptor) [pid 5668] close(22) = -1 EBADF (Bad file descriptor) [pid 5668] close(23) = -1 EBADF (Bad file descriptor) [pid 5668] close(24) = -1 EBADF (Bad file descriptor) [pid 5668] close(25) = -1 EBADF (Bad file descriptor) [pid 5668] close(26) = -1 EBADF (Bad file descriptor) [pid 5668] close(27) = -1 EBADF (Bad file descriptor) [pid 5668] close(28) = -1 EBADF (Bad file descriptor) [pid 5668] close(29) = -1 EBADF (Bad file descriptor) [pid 5668] exit_group(0) = ? [pid 5668] +++ exited with 0 +++ [pid 5622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=38, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5622] restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 [pid 5622] umount2("./36", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./36", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5622] fstat(3, {st_mode=S_IFDIR|0700, st_size=160, ...}) = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 8 entries */, 32768) = 232 [pid 5622] umount2("./36/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5622] umount2("./36/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./36/bus", {st_mode=S_IFDIR|000, st_size=80, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./36/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./36/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|000, st_size=80, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 4 entries */, 32768) = 104 [pid 5622] umount2("./36/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./36/bus/index", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./36/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./36/bus/index", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./36/bus/index") = 0 [pid 5622] umount2("./36/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./36/bus/work", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./36/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./36/bus/work", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./36/bus/work") = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./36/bus") = 0 [pid 5622] umount2("./36/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./36/file0", {st_mode=S_IFDIR|0600, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./36/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./36/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|0600, st_size=40, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./36/file0") = 0 [pid 5622] umount2("./36/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./36/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./36/binderfs") = 0 [pid 5622] umount2("./36/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./36/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./36/cgroup.net") = 0 [pid 5622] umount2("./36/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./36/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./36/cgroup.cpu") = 0 [pid 5622] umount2("./36/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./36/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./36/cgroup") = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 0 entries */, 32768) = 0 [pid 5622] close(3) = 0 [pid 5622] rmdir("./36") = 0 [pid 5622] mkdir("./37", 0777) = 0 [pid 5622] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-linux-next-kasan-gce-root/strace-static-x86_64: Process 5669 attached [pid 5669] set_robust_list(0x55556a0c16e0, 24) = 0 [pid 5669] rt_sigprocmask(SIG_SETMASK, [] [pid 5622] <... clone resumed>, child_tidptr=0x55556a0c16d0) = 39 [pid 5669] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5622] rt_sigprocmask(SIG_SETMASK, [] [pid 5669] chdir("./37" [pid 5622] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5669] <... chdir resumed>) = 0 [pid 5669] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5669] setpgid(0, 0) = 0 [pid 5669] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 5669] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5669] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 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 executing program [pid 5669] write(1, "executing program\n", 18) = 18 [pid 5669] mkdirat(AT_FDCWD, "./file0", 0601) = 0 [pid 5669] mkdirat(AT_FDCWD, "./bus", 000) = 0 [pid 5669] mount(NULL, "./bus", "overlay", MS_NOEXEC, "workdir=./bus,lowerdir=./cgroup,upperdir=./file0,") = 0 [pid 5669] chdir("./bus") = 0 [pid 5669] mount(NULL, "./tracing", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 5669] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 3 [pid 5669] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 4 [pid 5669] close(3) = 0 [pid 5669] close(4) = 0 [pid 5669] close(5) = -1 EBADF (Bad file descriptor) [pid 5669] close(6) = -1 EBADF (Bad file descriptor) [pid 5669] close(7) = -1 EBADF (Bad file descriptor) [pid 5669] close(8) = -1 EBADF (Bad file descriptor) [pid 5669] close(9) = -1 EBADF (Bad file descriptor) [pid 5669] close(10) = -1 EBADF (Bad file descriptor) [pid 5669] close(11) = -1 EBADF (Bad file descriptor) [pid 5669] close(12) = -1 EBADF (Bad file descriptor) [pid 5669] close(13) = -1 EBADF (Bad file descriptor) [pid 5669] close(14) = -1 EBADF (Bad file descriptor) [pid 5669] close(15) = -1 EBADF (Bad file descriptor) [pid 5669] close(16) = -1 EBADF (Bad file descriptor) [pid 5669] close(17) = -1 EBADF (Bad file descriptor) [pid 5669] close(18) = -1 EBADF (Bad file descriptor) [pid 5669] close(19) = -1 EBADF (Bad file descriptor) [pid 5669] close(20) = -1 EBADF (Bad file descriptor) [pid 5669] close(21) = -1 EBADF (Bad file descriptor) [pid 5669] close(22) = -1 EBADF (Bad file descriptor) [pid 5669] close(23) = -1 EBADF (Bad file descriptor) [pid 5669] close(24) = -1 EBADF (Bad file descriptor) [pid 5669] close(25) = -1 EBADF (Bad file descriptor) [pid 5669] close(26) = -1 EBADF (Bad file descriptor) [pid 5669] close(27) = -1 EBADF (Bad file descriptor) [pid 5669] close(28) = -1 EBADF (Bad file descriptor) [pid 5669] close(29) = -1 EBADF (Bad file descriptor) [pid 5669] exit_group(0) = ? [pid 5669] +++ exited with 0 +++ [pid 5622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=39, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5622] restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 [pid 5622] umount2("./37", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./37", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5622] fstat(3, {st_mode=S_IFDIR|0700, st_size=160, ...}) = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 8 entries */, 32768) = 232 [pid 5622] umount2("./37/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5622] umount2("./37/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./37/bus", {st_mode=S_IFDIR|000, st_size=80, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./37/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./37/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|000, st_size=80, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 4 entries */, 32768) = 104 [pid 5622] umount2("./37/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./37/bus/index", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./37/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./37/bus/index", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./37/bus/index") = 0 [pid 5622] umount2("./37/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./37/bus/work", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./37/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./37/bus/work", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./37/bus/work") = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./37/bus") = 0 [pid 5622] umount2("./37/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./37/file0", {st_mode=S_IFDIR|0600, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./37/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./37/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|0600, st_size=40, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./37/file0") = 0 [pid 5622] umount2("./37/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./37/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./37/binderfs") = 0 [pid 5622] umount2("./37/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./37/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./37/cgroup.net") = 0 [pid 5622] umount2("./37/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./37/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./37/cgroup.cpu") = 0 [pid 5622] umount2("./37/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./37/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./37/cgroup") = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 0 entries */, 32768) = 0 [pid 5622] close(3) = 0 [pid 5622] rmdir("./37") = 0 [pid 5622] mkdir("./38", 0777) = 0 [pid 5622] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-linux-next-kasan-gce-root/strace-static-x86_64: Process 5670 attached [pid 5670] set_robust_list(0x55556a0c16e0, 24 [pid 5622] <... clone resumed>, child_tidptr=0x55556a0c16d0) = 40 [pid 5670] <... set_robust_list resumed>) = 0 [pid 5670] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5622] rt_sigprocmask(SIG_SETMASK, [] [pid 5670] chdir("./38" [pid 5622] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5670] <... chdir resumed>) = 0 [pid 5670] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5670] setpgid(0, 0) = 0 [pid 5670] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 5670] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5670] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 5670] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5670] write(3, "1000", 4) = 4 [pid 5670] close(3) = 0 [pid 5670] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5670] write(1, "executing program\n", 18) = 18 executing program [pid 5670] mkdirat(AT_FDCWD, "./file0", 0601) = 0 [pid 5670] mkdirat(AT_FDCWD, "./bus", 000) = 0 [pid 5670] mount(NULL, "./bus", "overlay", MS_NOEXEC, "workdir=./bus,lowerdir=./cgroup,upperdir=./file0,") = 0 [pid 5670] chdir("./bus") = 0 [pid 5670] mount(NULL, "./tracing", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 5670] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 3 [pid 5670] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 4 [pid 5670] close(3) = 0 [pid 5670] close(4) = 0 [pid 5670] close(5) = -1 EBADF (Bad file descriptor) [pid 5670] close(6) = -1 EBADF (Bad file descriptor) [pid 5670] close(7) = -1 EBADF (Bad file descriptor) [pid 5670] close(8) = -1 EBADF (Bad file descriptor) [pid 5670] close(9) = -1 EBADF (Bad file descriptor) [pid 5670] close(10) = -1 EBADF (Bad file descriptor) [pid 5670] close(11) = -1 EBADF (Bad file descriptor) [pid 5670] close(12) = -1 EBADF (Bad file descriptor) [pid 5670] close(13) = -1 EBADF (Bad file descriptor) [pid 5670] close(14) = -1 EBADF (Bad file descriptor) [pid 5670] close(15) = -1 EBADF (Bad file descriptor) [pid 5670] close(16) = -1 EBADF (Bad file descriptor) [pid 5670] close(17) = -1 EBADF (Bad file descriptor) [pid 5670] close(18) = -1 EBADF (Bad file descriptor) [pid 5670] close(19) = -1 EBADF (Bad file descriptor) [pid 5670] close(20) = -1 EBADF (Bad file descriptor) [pid 5670] close(21) = -1 EBADF (Bad file descriptor) [pid 5670] close(22) = -1 EBADF (Bad file descriptor) [pid 5670] close(23) = -1 EBADF (Bad file descriptor) [pid 5670] close(24) = -1 EBADF (Bad file descriptor) [pid 5670] close(25) = -1 EBADF (Bad file descriptor) [pid 5670] close(26) = -1 EBADF (Bad file descriptor) [pid 5670] close(27) = -1 EBADF (Bad file descriptor) [pid 5670] close(28) = -1 EBADF (Bad file descriptor) [pid 5670] close(29) = -1 EBADF (Bad file descriptor) [pid 5670] exit_group(0) = ? [pid 5670] +++ exited with 0 +++ [pid 5622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=40, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5622] restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 [pid 5622] umount2("./38", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./38", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5622] fstat(3, {st_mode=S_IFDIR|0700, st_size=160, ...}) = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 8 entries */, 32768) = 232 [pid 5622] umount2("./38/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5622] umount2("./38/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./38/bus", {st_mode=S_IFDIR|000, st_size=80, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./38/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./38/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|000, st_size=80, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 4 entries */, 32768) = 104 [pid 5622] umount2("./38/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./38/bus/index", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./38/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./38/bus/index", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./38/bus/index") = 0 [pid 5622] umount2("./38/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./38/bus/work", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./38/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./38/bus/work", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./38/bus/work") = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./38/bus") = 0 [pid 5622] umount2("./38/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./38/file0", {st_mode=S_IFDIR|0600, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./38/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./38/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|0600, st_size=40, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./38/file0") = 0 [pid 5622] umount2("./38/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./38/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./38/binderfs") = 0 [pid 5622] umount2("./38/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./38/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./38/cgroup.net") = 0 [pid 5622] umount2("./38/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./38/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./38/cgroup.cpu") = 0 [pid 5622] umount2("./38/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./38/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./38/cgroup") = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 0 entries */, 32768) = 0 [pid 5622] close(3) = 0 [pid 5622] rmdir("./38") = 0 [pid 5622] mkdir("./39", 0777) = 0 [pid 5622] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-linux-next-kasan-gce-root/strace-static-x86_64: Process 5671 attached [pid 5671] set_robust_list(0x55556a0c16e0, 24 [pid 5622] <... clone resumed>, child_tidptr=0x55556a0c16d0) = 41 [pid 5671] <... set_robust_list resumed>) = 0 [pid 5671] rt_sigprocmask(SIG_SETMASK, [] [pid 5622] rt_sigprocmask(SIG_SETMASK, [] [pid 5671] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5622] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5671] chdir("./39") = 0 [pid 5671] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5671] setpgid(0, 0) = 0 [pid 5671] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 5671] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5671] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 5671] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5671] write(3, "1000", 4) = 4 [pid 5671] close(3) = 0 executing program [pid 5671] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5671] write(1, "executing program\n", 18) = 18 [pid 5671] mkdirat(AT_FDCWD, "./file0", 0601) = 0 [pid 5671] mkdirat(AT_FDCWD, "./bus", 000) = 0 [pid 5671] mount(NULL, "./bus", "overlay", MS_NOEXEC, "workdir=./bus,lowerdir=./cgroup,upperdir=./file0,") = 0 [pid 5671] chdir("./bus") = 0 [pid 5671] mount(NULL, "./tracing", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 5671] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 3 [pid 5671] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 4 [pid 5671] close(3) = 0 [pid 5671] close(4) = 0 [pid 5671] close(5) = -1 EBADF (Bad file descriptor) [pid 5671] close(6) = -1 EBADF (Bad file descriptor) [pid 5671] close(7) = -1 EBADF (Bad file descriptor) [pid 5671] close(8) = -1 EBADF (Bad file descriptor) [pid 5671] close(9) = -1 EBADF (Bad file descriptor) [pid 5671] close(10) = -1 EBADF (Bad file descriptor) [pid 5671] close(11) = -1 EBADF (Bad file descriptor) [pid 5671] close(12) = -1 EBADF (Bad file descriptor) [pid 5671] close(13) = -1 EBADF (Bad file descriptor) [pid 5671] close(14) = -1 EBADF (Bad file descriptor) [pid 5671] close(15) = -1 EBADF (Bad file descriptor) [pid 5671] close(16) = -1 EBADF (Bad file descriptor) [pid 5671] close(17) = -1 EBADF (Bad file descriptor) [pid 5671] close(18) = -1 EBADF (Bad file descriptor) [pid 5671] close(19) = -1 EBADF (Bad file descriptor) [pid 5671] close(20) = -1 EBADF (Bad file descriptor) [pid 5671] close(21) = -1 EBADF (Bad file descriptor) [pid 5671] close(22) = -1 EBADF (Bad file descriptor) [pid 5671] close(23) = -1 EBADF (Bad file descriptor) [pid 5671] close(24) = -1 EBADF (Bad file descriptor) [pid 5671] close(25) = -1 EBADF (Bad file descriptor) [pid 5671] close(26) = -1 EBADF (Bad file descriptor) [pid 5671] close(27) = -1 EBADF (Bad file descriptor) [pid 5671] close(28) = -1 EBADF (Bad file descriptor) [pid 5671] close(29) = -1 EBADF (Bad file descriptor) [pid 5671] exit_group(0) = ? [pid 5671] +++ exited with 0 +++ [pid 5622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=41, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5622] restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 [pid 5622] umount2("./39", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./39", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5622] fstat(3, {st_mode=S_IFDIR|0700, st_size=160, ...}) = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 8 entries */, 32768) = 232 [pid 5622] umount2("./39/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5622] umount2("./39/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./39/bus", {st_mode=S_IFDIR|000, st_size=80, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./39/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./39/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|000, st_size=80, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 4 entries */, 32768) = 104 [pid 5622] umount2("./39/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./39/bus/index", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./39/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./39/bus/index", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./39/bus/index") = 0 [pid 5622] umount2("./39/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./39/bus/work", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./39/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./39/bus/work", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./39/bus/work") = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./39/bus") = 0 [pid 5622] umount2("./39/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./39/file0", {st_mode=S_IFDIR|0600, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./39/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./39/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|0600, st_size=40, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./39/file0") = 0 [pid 5622] umount2("./39/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./39/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./39/binderfs") = 0 [pid 5622] umount2("./39/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./39/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./39/cgroup.net") = 0 [pid 5622] umount2("./39/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./39/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./39/cgroup.cpu") = 0 [pid 5622] umount2("./39/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./39/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./39/cgroup") = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 0 entries */, 32768) = 0 [pid 5622] close(3) = 0 [pid 5622] rmdir("./39") = 0 [pid 5622] mkdir("./40", 0777) = 0 [pid 5622] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-linux-next-kasan-gce-root/strace-static-x86_64: Process 5672 attached , child_tidptr=0x55556a0c16d0) = 42 [pid 5672] set_robust_list(0x55556a0c16e0, 24 [pid 5622] rt_sigprocmask(SIG_SETMASK, [] [pid 5672] <... set_robust_list resumed>) = 0 [pid 5672] rt_sigprocmask(SIG_SETMASK, [] [pid 5622] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5672] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5672] chdir("./40") = 0 [pid 5672] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5672] setpgid(0, 0) = 0 [pid 5672] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 5672] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5672] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 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 executing program [pid 5672] write(1, "executing program\n", 18) = 18 [pid 5672] mkdirat(AT_FDCWD, "./file0", 0601) = 0 [pid 5672] mkdirat(AT_FDCWD, "./bus", 000) = 0 [pid 5672] mount(NULL, "./bus", "overlay", MS_NOEXEC, "workdir=./bus,lowerdir=./cgroup,upperdir=./file0,") = 0 [pid 5672] chdir("./bus") = 0 [pid 5672] mount(NULL, "./tracing", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 5672] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 3 [pid 5672] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 4 [pid 5672] close(3) = 0 [pid 5672] close(4) = 0 [pid 5672] close(5) = -1 EBADF (Bad file descriptor) [pid 5672] close(6) = -1 EBADF (Bad file descriptor) [pid 5672] close(7) = -1 EBADF (Bad file descriptor) [pid 5672] close(8) = -1 EBADF (Bad file descriptor) [pid 5672] close(9) = -1 EBADF (Bad file descriptor) [pid 5672] close(10) = -1 EBADF (Bad file descriptor) [pid 5672] close(11) = -1 EBADF (Bad file descriptor) [pid 5672] close(12) = -1 EBADF (Bad file descriptor) [pid 5672] close(13) = -1 EBADF (Bad file descriptor) [pid 5672] close(14) = -1 EBADF (Bad file descriptor) [pid 5672] close(15) = -1 EBADF (Bad file descriptor) [pid 5672] close(16) = -1 EBADF (Bad file descriptor) [pid 5672] close(17) = -1 EBADF (Bad file descriptor) [pid 5672] close(18) = -1 EBADF (Bad file descriptor) [pid 5672] close(19) = -1 EBADF (Bad file descriptor) [pid 5672] close(20) = -1 EBADF (Bad file descriptor) [pid 5672] close(21) = -1 EBADF (Bad file descriptor) [pid 5672] close(22) = -1 EBADF (Bad file descriptor) [pid 5672] close(23) = -1 EBADF (Bad file descriptor) [pid 5672] close(24) = -1 EBADF (Bad file descriptor) [pid 5672] close(25) = -1 EBADF (Bad file descriptor) [pid 5672] close(26) = -1 EBADF (Bad file descriptor) [pid 5672] close(27) = -1 EBADF (Bad file descriptor) [pid 5672] close(28) = -1 EBADF (Bad file descriptor) [pid 5672] close(29) = -1 EBADF (Bad file descriptor) [pid 5672] exit_group(0) = ? [pid 5672] +++ exited with 0 +++ [pid 5622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=42, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5622] restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 [pid 5622] umount2("./40", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./40", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5622] fstat(3, {st_mode=S_IFDIR|0700, st_size=160, ...}) = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 8 entries */, 32768) = 232 [pid 5622] umount2("./40/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5622] umount2("./40/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./40/bus", {st_mode=S_IFDIR|000, st_size=80, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./40/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./40/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|000, st_size=80, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 4 entries */, 32768) = 104 [pid 5622] umount2("./40/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./40/bus/index", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./40/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./40/bus/index", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./40/bus/index") = 0 [pid 5622] umount2("./40/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./40/bus/work", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./40/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./40/bus/work", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./40/bus/work") = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./40/bus") = 0 [pid 5622] umount2("./40/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./40/file0", {st_mode=S_IFDIR|0600, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./40/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./40/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|0600, st_size=40, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./40/file0") = 0 [pid 5622] umount2("./40/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./40/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./40/binderfs") = 0 [pid 5622] umount2("./40/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./40/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./40/cgroup.net") = 0 [pid 5622] umount2("./40/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./40/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./40/cgroup.cpu") = 0 [pid 5622] umount2("./40/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./40/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./40/cgroup") = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 0 entries */, 32768) = 0 [pid 5622] close(3) = 0 [pid 5622] rmdir("./40") = 0 [pid 5622] mkdir("./41", 0777) = 0 [pid 5622] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556a0c16d0) = 43 ci-upstream-linux-next-kasan-gce-root/strace-static-x86_64: Process 5673 attached [pid 5622] rt_sigprocmask(SIG_SETMASK, [] [pid 5673] set_robust_list(0x55556a0c16e0, 24 [pid 5622] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5673] <... set_robust_list resumed>) = 0 [pid 5673] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5673] chdir("./41") = 0 [pid 5673] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5673] setpgid(0, 0) = 0 [pid 5673] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 5673] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5673] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 5673] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5673] write(3, "1000", 4) = 4 [pid 5673] close(3) = 0 [pid 5673] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5673] write(1, "executing program\n", 18) = 18 [pid 5673] mkdirat(AT_FDCWD, "./file0", 0601) = 0 [pid 5673] mkdirat(AT_FDCWD, "./bus", 000) = 0 [pid 5673] mount(NULL, "./bus", "overlay", MS_NOEXEC, "workdir=./bus,lowerdir=./cgroup,upperdir=./file0,") = 0 [pid 5673] chdir("./bus") = 0 [pid 5673] mount(NULL, "./tracing", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 5673] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 3 [pid 5673] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 4 [pid 5673] close(3) = 0 [pid 5673] close(4) = 0 [pid 5673] close(5) = -1 EBADF (Bad file descriptor) [pid 5673] close(6) = -1 EBADF (Bad file descriptor) [pid 5673] close(7) = -1 EBADF (Bad file descriptor) [pid 5673] close(8) = -1 EBADF (Bad file descriptor) [pid 5673] close(9) = -1 EBADF (Bad file descriptor) [pid 5673] close(10) = -1 EBADF (Bad file descriptor) [pid 5673] close(11) = -1 EBADF (Bad file descriptor) [pid 5673] close(12) = -1 EBADF (Bad file descriptor) [pid 5673] close(13) = -1 EBADF (Bad file descriptor) [pid 5673] close(14) = -1 EBADF (Bad file descriptor) [pid 5673] close(15) = -1 EBADF (Bad file descriptor) [pid 5673] close(16) = -1 EBADF (Bad file descriptor) [pid 5673] close(17) = -1 EBADF (Bad file descriptor) [pid 5673] close(18) = -1 EBADF (Bad file descriptor) [pid 5673] close(19) = -1 EBADF (Bad file descriptor) [pid 5673] close(20) = -1 EBADF (Bad file descriptor) [pid 5673] close(21) = -1 EBADF (Bad file descriptor) [pid 5673] close(22) = -1 EBADF (Bad file descriptor) [pid 5673] close(23) = -1 EBADF (Bad file descriptor) [pid 5673] close(24) = -1 EBADF (Bad file descriptor) [pid 5673] close(25) = -1 EBADF (Bad file descriptor) [pid 5673] close(26) = -1 EBADF (Bad file descriptor) [pid 5673] close(27) = -1 EBADF (Bad file descriptor) [pid 5673] close(28) = -1 EBADF (Bad file descriptor) [pid 5673] close(29) = -1 EBADF (Bad file descriptor) [pid 5673] exit_group(0) = ? [pid 5673] +++ exited with 0 +++ [pid 5622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=43, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5622] restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 [pid 5622] umount2("./41", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./41", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5622] fstat(3, {st_mode=S_IFDIR|0700, st_size=160, ...}) = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 8 entries */, 32768) = 232 [pid 5622] umount2("./41/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5622] umount2("./41/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./41/bus", {st_mode=S_IFDIR|000, st_size=80, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./41/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./41/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|000, st_size=80, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 4 entries */, 32768) = 104 [pid 5622] umount2("./41/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./41/bus/index", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./41/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./41/bus/index", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./41/bus/index") = 0 [pid 5622] umount2("./41/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./41/bus/work", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./41/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./41/bus/work", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./41/bus/work") = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./41/bus") = 0 [pid 5622] umount2("./41/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./41/file0", {st_mode=S_IFDIR|0600, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./41/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./41/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|0600, st_size=40, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./41/file0") = 0 [pid 5622] umount2("./41/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./41/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./41/binderfs") = 0 [pid 5622] umount2("./41/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./41/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./41/cgroup.net") = 0 [pid 5622] umount2("./41/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./41/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./41/cgroup.cpu") = 0 [pid 5622] umount2("./41/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./41/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./41/cgroup") = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 0 entries */, 32768) = 0 [pid 5622] close(3) = 0 [pid 5622] rmdir("./41") = 0 [pid 5622] mkdir("./42", 0777) = 0 [pid 5622] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-linux-next-kasan-gce-root/strace-static-x86_64: Process 5674 attached , child_tidptr=0x55556a0c16d0) = 44 [pid 5674] set_robust_list(0x55556a0c16e0, 24 [pid 5622] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5674] <... set_robust_list resumed>) = 0 [pid 5674] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5674] chdir("./42") = 0 [pid 5674] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5674] setpgid(0, 0) = 0 [pid 5674] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 5674] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5674] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 5674] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5674] write(3, "1000", 4) = 4 [pid 5674] close(3) = 0 [pid 5674] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5674] write(1, "executing program\n", 18) = 18 executing program [pid 5674] mkdirat(AT_FDCWD, "./file0", 0601) = 0 [pid 5674] mkdirat(AT_FDCWD, "./bus", 000) = 0 [pid 5674] mount(NULL, "./bus", "overlay", MS_NOEXEC, "workdir=./bus,lowerdir=./cgroup,upperdir=./file0,") = 0 [pid 5674] chdir("./bus") = 0 [pid 5674] mount(NULL, "./tracing", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 5674] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 3 [pid 5674] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 4 [pid 5674] close(3) = 0 [pid 5674] close(4) = 0 [pid 5674] close(5) = -1 EBADF (Bad file descriptor) [pid 5674] close(6) = -1 EBADF (Bad file descriptor) [pid 5674] close(7) = -1 EBADF (Bad file descriptor) [pid 5674] close(8) = -1 EBADF (Bad file descriptor) [pid 5674] close(9) = -1 EBADF (Bad file descriptor) [pid 5674] close(10) = -1 EBADF (Bad file descriptor) [pid 5674] close(11) = -1 EBADF (Bad file descriptor) [pid 5674] close(12) = -1 EBADF (Bad file descriptor) [pid 5674] close(13) = -1 EBADF (Bad file descriptor) [pid 5674] close(14) = -1 EBADF (Bad file descriptor) [pid 5674] close(15) = -1 EBADF (Bad file descriptor) [pid 5674] close(16) = -1 EBADF (Bad file descriptor) [pid 5674] close(17) = -1 EBADF (Bad file descriptor) [pid 5674] close(18) = -1 EBADF (Bad file descriptor) [pid 5674] close(19) = -1 EBADF (Bad file descriptor) [pid 5674] close(20) = -1 EBADF (Bad file descriptor) [pid 5674] close(21) = -1 EBADF (Bad file descriptor) [pid 5674] close(22) = -1 EBADF (Bad file descriptor) [pid 5674] close(23) = -1 EBADF (Bad file descriptor) [pid 5674] close(24) = -1 EBADF (Bad file descriptor) [pid 5674] close(25) = -1 EBADF (Bad file descriptor) [pid 5674] close(26) = -1 EBADF (Bad file descriptor) [pid 5674] close(27) = -1 EBADF (Bad file descriptor) [pid 5674] close(28) = -1 EBADF (Bad file descriptor) [pid 5674] close(29) = -1 EBADF (Bad file descriptor) [pid 5674] exit_group(0) = ? [pid 5674] +++ exited with 0 +++ [pid 5622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=44, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5622] restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 [pid 5622] umount2("./42", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./42", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5622] fstat(3, {st_mode=S_IFDIR|0700, st_size=160, ...}) = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 8 entries */, 32768) = 232 [pid 5622] umount2("./42/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5622] umount2("./42/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./42/bus", {st_mode=S_IFDIR|000, st_size=80, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./42/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./42/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|000, st_size=80, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 4 entries */, 32768) = 104 [pid 5622] umount2("./42/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./42/bus/index", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./42/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./42/bus/index", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./42/bus/index") = 0 [pid 5622] umount2("./42/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./42/bus/work", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./42/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./42/bus/work", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./42/bus/work") = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./42/bus") = 0 [pid 5622] umount2("./42/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./42/file0", {st_mode=S_IFDIR|0600, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./42/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./42/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|0600, st_size=40, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./42/file0") = 0 [pid 5622] umount2("./42/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./42/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./42/binderfs") = 0 [pid 5622] umount2("./42/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./42/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./42/cgroup.net") = 0 [pid 5622] umount2("./42/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./42/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./42/cgroup.cpu") = 0 [pid 5622] umount2("./42/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./42/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./42/cgroup") = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 0 entries */, 32768) = 0 [pid 5622] close(3) = 0 [pid 5622] rmdir("./42") = 0 [pid 5622] mkdir("./43", 0777) = 0 [pid 5622] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-linux-next-kasan-gce-root/strace-static-x86_64: Process 5675 attached [pid 5675] set_robust_list(0x55556a0c16e0, 24 [pid 5622] <... clone resumed>, child_tidptr=0x55556a0c16d0) = 45 [pid 5675] <... set_robust_list resumed>) = 0 [pid 5675] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5622] rt_sigprocmask(SIG_SETMASK, [] [pid 5675] chdir("./43" [pid 5622] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5675] <... chdir resumed>) = 0 [pid 5675] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5675] setpgid(0, 0) = 0 [pid 5675] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 5675] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5675] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 5675] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5675] write(3, "1000", 4) = 4 [pid 5675] close(3) = 0 [pid 5675] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5675] write(1, "executing program\n", 18) = 18 executing program [pid 5675] mkdirat(AT_FDCWD, "./file0", 0601) = 0 [pid 5675] mkdirat(AT_FDCWD, "./bus", 000) = 0 [pid 5675] mount(NULL, "./bus", "overlay", MS_NOEXEC, "workdir=./bus,lowerdir=./cgroup,upperdir=./file0,") = 0 [pid 5675] chdir("./bus") = 0 [pid 5675] mount(NULL, "./tracing", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 5675] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 3 [pid 5675] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 4 [pid 5675] close(3) = 0 [pid 5675] close(4) = 0 [pid 5675] close(5) = -1 EBADF (Bad file descriptor) [pid 5675] close(6) = -1 EBADF (Bad file descriptor) [pid 5675] close(7) = -1 EBADF (Bad file descriptor) [pid 5675] close(8) = -1 EBADF (Bad file descriptor) [pid 5675] close(9) = -1 EBADF (Bad file descriptor) [pid 5675] close(10) = -1 EBADF (Bad file descriptor) [pid 5675] close(11) = -1 EBADF (Bad file descriptor) [pid 5675] close(12) = -1 EBADF (Bad file descriptor) [pid 5675] close(13) = -1 EBADF (Bad file descriptor) [pid 5675] close(14) = -1 EBADF (Bad file descriptor) [pid 5675] close(15) = -1 EBADF (Bad file descriptor) [pid 5675] close(16) = -1 EBADF (Bad file descriptor) [pid 5675] close(17) = -1 EBADF (Bad file descriptor) [pid 5675] close(18) = -1 EBADF (Bad file descriptor) [pid 5675] close(19) = -1 EBADF (Bad file descriptor) [pid 5675] close(20) = -1 EBADF (Bad file descriptor) [pid 5675] close(21) = -1 EBADF (Bad file descriptor) [pid 5675] close(22) = -1 EBADF (Bad file descriptor) [pid 5675] close(23) = -1 EBADF (Bad file descriptor) [pid 5675] close(24) = -1 EBADF (Bad file descriptor) [pid 5675] close(25) = -1 EBADF (Bad file descriptor) [pid 5675] close(26) = -1 EBADF (Bad file descriptor) [pid 5675] close(27) = -1 EBADF (Bad file descriptor) [pid 5675] close(28) = -1 EBADF (Bad file descriptor) [pid 5675] close(29) = -1 EBADF (Bad file descriptor) [pid 5675] exit_group(0) = ? [pid 5675] +++ exited with 0 +++ [pid 5622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=45, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5622] restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 [pid 5622] umount2("./43", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./43", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5622] fstat(3, {st_mode=S_IFDIR|0700, st_size=160, ...}) = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 8 entries */, 32768) = 232 [pid 5622] umount2("./43/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5622] umount2("./43/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./43/bus", {st_mode=S_IFDIR|000, st_size=80, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./43/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./43/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|000, st_size=80, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 4 entries */, 32768) = 104 [pid 5622] umount2("./43/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./43/bus/index", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./43/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./43/bus/index", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./43/bus/index") = 0 [pid 5622] umount2("./43/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./43/bus/work", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./43/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./43/bus/work", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./43/bus/work") = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./43/bus") = 0 [pid 5622] umount2("./43/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./43/file0", {st_mode=S_IFDIR|0600, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./43/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./43/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|0600, st_size=40, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./43/file0") = 0 [pid 5622] umount2("./43/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./43/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./43/binderfs") = 0 [pid 5622] umount2("./43/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./43/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./43/cgroup.net") = 0 [pid 5622] umount2("./43/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./43/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./43/cgroup.cpu") = 0 [pid 5622] umount2("./43/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./43/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./43/cgroup") = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 0 entries */, 32768) = 0 [pid 5622] close(3) = 0 [pid 5622] rmdir("./43") = 0 [pid 5622] mkdir("./44", 0777) = 0 [pid 5622] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-linux-next-kasan-gce-root/strace-static-x86_64: Process 5676 attached [pid 5676] set_robust_list(0x55556a0c16e0, 24 [pid 5622] <... clone resumed>, child_tidptr=0x55556a0c16d0) = 46 [pid 5676] <... set_robust_list resumed>) = 0 [pid 5676] rt_sigprocmask(SIG_SETMASK, [] [pid 5622] rt_sigprocmask(SIG_SETMASK, [] [pid 5676] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5622] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5676] chdir("./44") = 0 [pid 5676] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5676] setpgid(0, 0) = 0 [pid 5676] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 5676] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5676] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 5676] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5676] write(3, "1000", 4) = 4 [pid 5676] close(3) = 0 [pid 5676] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5676] write(1, "executing program\n", 18) = 18 [pid 5676] mkdirat(AT_FDCWD, "./file0", 0601) = 0 [pid 5676] mkdirat(AT_FDCWD, "./bus", 000) = 0 [pid 5676] mount(NULL, "./bus", "overlay", MS_NOEXEC, "workdir=./bus,lowerdir=./cgroup,upperdir=./file0,") = 0 [pid 5676] chdir("./bus") = 0 [pid 5676] mount(NULL, "./tracing", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 5676] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 3 [pid 5676] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 4 [pid 5676] close(3) = 0 [pid 5676] close(4) = 0 [pid 5676] close(5) = -1 EBADF (Bad file descriptor) [pid 5676] close(6) = -1 EBADF (Bad file descriptor) [pid 5676] close(7) = -1 EBADF (Bad file descriptor) [pid 5676] close(8) = -1 EBADF (Bad file descriptor) [pid 5676] close(9) = -1 EBADF (Bad file descriptor) [pid 5676] close(10) = -1 EBADF (Bad file descriptor) [pid 5676] close(11) = -1 EBADF (Bad file descriptor) [pid 5676] close(12) = -1 EBADF (Bad file descriptor) [pid 5676] close(13) = -1 EBADF (Bad file descriptor) [pid 5676] close(14) = -1 EBADF (Bad file descriptor) [pid 5676] close(15) = -1 EBADF (Bad file descriptor) [pid 5676] close(16) = -1 EBADF (Bad file descriptor) [pid 5676] close(17) = -1 EBADF (Bad file descriptor) [pid 5676] close(18) = -1 EBADF (Bad file descriptor) [pid 5676] close(19) = -1 EBADF (Bad file descriptor) [pid 5676] close(20) = -1 EBADF (Bad file descriptor) [pid 5676] close(21) = -1 EBADF (Bad file descriptor) [pid 5676] close(22) = -1 EBADF (Bad file descriptor) [pid 5676] close(23) = -1 EBADF (Bad file descriptor) [pid 5676] close(24) = -1 EBADF (Bad file descriptor) [pid 5676] close(25) = -1 EBADF (Bad file descriptor) [pid 5676] close(26) = -1 EBADF (Bad file descriptor) [pid 5676] close(27) = -1 EBADF (Bad file descriptor) [pid 5676] close(28) = -1 EBADF (Bad file descriptor) [pid 5676] close(29) = -1 EBADF (Bad file descriptor) [pid 5676] exit_group(0) = ? [pid 5676] +++ exited with 0 +++ [pid 5622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=46, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5622] restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 [pid 5622] umount2("./44", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./44", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5622] fstat(3, {st_mode=S_IFDIR|0700, st_size=160, ...}) = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 8 entries */, 32768) = 232 [pid 5622] umount2("./44/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5622] umount2("./44/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./44/bus", {st_mode=S_IFDIR|000, st_size=80, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./44/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./44/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|000, st_size=80, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 4 entries */, 32768) = 104 [pid 5622] umount2("./44/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./44/bus/index", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./44/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./44/bus/index", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./44/bus/index") = 0 [pid 5622] umount2("./44/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./44/bus/work", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./44/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./44/bus/work", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./44/bus/work") = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./44/bus") = 0 [pid 5622] umount2("./44/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./44/file0", {st_mode=S_IFDIR|0600, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./44/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./44/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|0600, st_size=40, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./44/file0") = 0 [pid 5622] umount2("./44/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./44/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./44/binderfs") = 0 [pid 5622] umount2("./44/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./44/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./44/cgroup.net") = 0 [pid 5622] umount2("./44/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./44/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./44/cgroup.cpu") = 0 [pid 5622] umount2("./44/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./44/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./44/cgroup") = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 0 entries */, 32768) = 0 [pid 5622] close(3) = 0 [pid 5622] rmdir("./44") = 0 [pid 5622] mkdir("./45", 0777) = 0 [pid 5622] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-linux-next-kasan-gce-root/strace-static-x86_64: Process 5677 attached [pid 5677] set_robust_list(0x55556a0c16e0, 24 [pid 5622] <... clone resumed>, child_tidptr=0x55556a0c16d0) = 47 [pid 5677] <... set_robust_list resumed>) = 0 [pid 5677] rt_sigprocmask(SIG_SETMASK, [] [pid 5622] rt_sigprocmask(SIG_SETMASK, [] [pid 5677] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5622] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5677] chdir("./45") = 0 [pid 5677] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5677] setpgid(0, 0) = 0 [pid 5677] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 5677] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5677] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 5677] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5677] write(3, "1000", 4) = 4 [pid 5677] close(3) = 0 [pid 5677] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5677] write(1, "executing program\n", 18) = 18 [pid 5677] mkdirat(AT_FDCWD, "./file0", 0601) = 0 [pid 5677] mkdirat(AT_FDCWD, "./bus", 000) = 0 [pid 5677] mount(NULL, "./bus", "overlay", MS_NOEXEC, "workdir=./bus,lowerdir=./cgroup,upperdir=./file0,") = 0 [pid 5677] chdir("./bus") = 0 [pid 5677] mount(NULL, "./tracing", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 5677] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 3 [pid 5677] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 4 [pid 5677] close(3) = 0 [pid 5677] close(4) = 0 [pid 5677] close(5) = -1 EBADF (Bad file descriptor) [pid 5677] close(6) = -1 EBADF (Bad file descriptor) [pid 5677] close(7) = -1 EBADF (Bad file descriptor) [pid 5677] close(8) = -1 EBADF (Bad file descriptor) [pid 5677] close(9) = -1 EBADF (Bad file descriptor) [pid 5677] close(10) = -1 EBADF (Bad file descriptor) [pid 5677] close(11) = -1 EBADF (Bad file descriptor) [pid 5677] close(12) = -1 EBADF (Bad file descriptor) [pid 5677] close(13) = -1 EBADF (Bad file descriptor) [pid 5677] close(14) = -1 EBADF (Bad file descriptor) [pid 5677] close(15) = -1 EBADF (Bad file descriptor) [pid 5677] close(16) = -1 EBADF (Bad file descriptor) [pid 5677] close(17) = -1 EBADF (Bad file descriptor) [pid 5677] close(18) = -1 EBADF (Bad file descriptor) [pid 5677] close(19) = -1 EBADF (Bad file descriptor) [pid 5677] close(20) = -1 EBADF (Bad file descriptor) [pid 5677] close(21) = -1 EBADF (Bad file descriptor) [pid 5677] close(22) = -1 EBADF (Bad file descriptor) [pid 5677] close(23) = -1 EBADF (Bad file descriptor) [pid 5677] close(24) = -1 EBADF (Bad file descriptor) [pid 5677] close(25) = -1 EBADF (Bad file descriptor) [pid 5677] close(26) = -1 EBADF (Bad file descriptor) [pid 5677] close(27) = -1 EBADF (Bad file descriptor) [pid 5677] close(28) = -1 EBADF (Bad file descriptor) [pid 5677] close(29) = -1 EBADF (Bad file descriptor) [pid 5677] exit_group(0) = ? [pid 5677] +++ exited with 0 +++ [pid 5622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=47, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5622] restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 [pid 5622] umount2("./45", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./45", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5622] fstat(3, {st_mode=S_IFDIR|0700, st_size=160, ...}) = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 8 entries */, 32768) = 232 [pid 5622] umount2("./45/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5622] umount2("./45/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./45/bus", {st_mode=S_IFDIR|000, st_size=80, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./45/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./45/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|000, st_size=80, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 4 entries */, 32768) = 104 [pid 5622] umount2("./45/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./45/bus/index", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./45/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./45/bus/index", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./45/bus/index") = 0 [pid 5622] umount2("./45/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./45/bus/work", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./45/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./45/bus/work", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./45/bus/work") = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./45/bus") = 0 [pid 5622] umount2("./45/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./45/file0", {st_mode=S_IFDIR|0600, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./45/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./45/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|0600, st_size=40, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./45/file0") = 0 [pid 5622] umount2("./45/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./45/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./45/binderfs") = 0 [pid 5622] umount2("./45/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./45/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./45/cgroup.net") = 0 [pid 5622] umount2("./45/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./45/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./45/cgroup.cpu") = 0 [pid 5622] umount2("./45/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./45/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./45/cgroup") = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 0 entries */, 32768) = 0 [pid 5622] close(3) = 0 [pid 5622] rmdir("./45") = 0 [pid 5622] mkdir("./46", 0777) = 0 [pid 5622] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-linux-next-kasan-gce-root/strace-static-x86_64: Process 5678 attached [pid 5678] set_robust_list(0x55556a0c16e0, 24 [pid 5622] <... clone resumed>, child_tidptr=0x55556a0c16d0) = 48 [pid 5678] <... set_robust_list resumed>) = 0 [pid 5678] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5622] rt_sigprocmask(SIG_SETMASK, [] [pid 5678] chdir("./46") = 0 [pid 5622] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5678] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5678] setpgid(0, 0) = 0 [pid 5678] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 5678] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5678] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 5678] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5678] write(3, "1000", 4) = 4 [pid 5678] close(3) = 0 executing program [pid 5678] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5678] write(1, "executing program\n", 18) = 18 [pid 5678] mkdirat(AT_FDCWD, "./file0", 0601) = 0 [pid 5678] mkdirat(AT_FDCWD, "./bus", 000) = 0 [pid 5678] mount(NULL, "./bus", "overlay", MS_NOEXEC, "workdir=./bus,lowerdir=./cgroup,upperdir=./file0,") = 0 [pid 5678] chdir("./bus") = 0 [pid 5678] mount(NULL, "./tracing", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 5678] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 3 [pid 5678] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 4 [pid 5678] close(3) = 0 [pid 5678] close(4) = 0 [pid 5678] close(5) = -1 EBADF (Bad file descriptor) [pid 5678] close(6) = -1 EBADF (Bad file descriptor) [pid 5678] close(7) = -1 EBADF (Bad file descriptor) [pid 5678] close(8) = -1 EBADF (Bad file descriptor) [pid 5678] close(9) = -1 EBADF (Bad file descriptor) [pid 5678] close(10) = -1 EBADF (Bad file descriptor) [pid 5678] close(11) = -1 EBADF (Bad file descriptor) [pid 5678] close(12) = -1 EBADF (Bad file descriptor) [pid 5678] close(13) = -1 EBADF (Bad file descriptor) [pid 5678] close(14) = -1 EBADF (Bad file descriptor) [pid 5678] close(15) = -1 EBADF (Bad file descriptor) [pid 5678] close(16) = -1 EBADF (Bad file descriptor) [pid 5678] close(17) = -1 EBADF (Bad file descriptor) [pid 5678] close(18) = -1 EBADF (Bad file descriptor) [pid 5678] close(19) = -1 EBADF (Bad file descriptor) [pid 5678] close(20) = -1 EBADF (Bad file descriptor) [pid 5678] close(21) = -1 EBADF (Bad file descriptor) [pid 5678] close(22) = -1 EBADF (Bad file descriptor) [pid 5678] close(23) = -1 EBADF (Bad file descriptor) [pid 5678] close(24) = -1 EBADF (Bad file descriptor) [pid 5678] close(25) = -1 EBADF (Bad file descriptor) [pid 5678] close(26) = -1 EBADF (Bad file descriptor) [pid 5678] close(27) = -1 EBADF (Bad file descriptor) [pid 5678] close(28) = -1 EBADF (Bad file descriptor) [pid 5678] close(29) = -1 EBADF (Bad file descriptor) [pid 5678] exit_group(0) = ? [pid 5678] +++ exited with 0 +++ [pid 5622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=48, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5622] restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 [pid 5622] umount2("./46", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./46", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5622] fstat(3, {st_mode=S_IFDIR|0700, st_size=160, ...}) = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 8 entries */, 32768) = 232 [pid 5622] umount2("./46/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5622] umount2("./46/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./46/bus", {st_mode=S_IFDIR|000, st_size=80, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./46/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./46/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|000, st_size=80, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 4 entries */, 32768) = 104 [pid 5622] umount2("./46/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./46/bus/index", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./46/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./46/bus/index", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./46/bus/index") = 0 [pid 5622] umount2("./46/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./46/bus/work", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./46/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./46/bus/work", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./46/bus/work") = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./46/bus") = 0 [pid 5622] umount2("./46/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./46/file0", {st_mode=S_IFDIR|0600, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./46/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./46/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|0600, st_size=40, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./46/file0") = 0 [pid 5622] umount2("./46/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./46/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./46/binderfs") = 0 [pid 5622] umount2("./46/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./46/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./46/cgroup.net") = 0 [pid 5622] umount2("./46/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./46/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./46/cgroup.cpu") = 0 [pid 5622] umount2("./46/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./46/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./46/cgroup") = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 0 entries */, 32768) = 0 [pid 5622] close(3) = 0 [pid 5622] rmdir("./46") = 0 [pid 5622] mkdir("./47", 0777) = 0 [pid 5622] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556a0c16d0) = 49 ci-upstream-linux-next-kasan-gce-root/strace-static-x86_64: Process 5679 attached [pid 5622] rt_sigprocmask(SIG_SETMASK, [] [pid 5679] set_robust_list(0x55556a0c16e0, 24 [pid 5622] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5679] <... set_robust_list resumed>) = 0 [pid 5679] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5679] chdir("./47") = 0 [pid 5679] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5679] setpgid(0, 0) = 0 [pid 5679] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 5679] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5679] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 5679] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5679] write(3, "1000", 4) = 4 [pid 5679] close(3) = 0 [pid 5679] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5679] write(1, "executing program\n", 18) = 18 [pid 5679] mkdirat(AT_FDCWD, "./file0", 0601) = 0 [pid 5679] mkdirat(AT_FDCWD, "./bus", 000) = 0 [pid 5679] mount(NULL, "./bus", "overlay", MS_NOEXEC, "workdir=./bus,lowerdir=./cgroup,upperdir=./file0,") = 0 [pid 5679] chdir("./bus") = 0 [pid 5679] mount(NULL, "./tracing", NULL, 0, NULL) = -1 ENOENT (No such file or directory) executing program [pid 5679] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 3 [pid 5679] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 4 [pid 5679] close(3) = 0 [pid 5679] close(4) = 0 [pid 5679] close(5) = -1 EBADF (Bad file descriptor) [pid 5679] close(6) = -1 EBADF (Bad file descriptor) [pid 5679] close(7) = -1 EBADF (Bad file descriptor) [pid 5679] close(8) = -1 EBADF (Bad file descriptor) [pid 5679] close(9) = -1 EBADF (Bad file descriptor) [pid 5679] close(10) = -1 EBADF (Bad file descriptor) [pid 5679] close(11) = -1 EBADF (Bad file descriptor) [pid 5679] close(12) = -1 EBADF (Bad file descriptor) [pid 5679] close(13) = -1 EBADF (Bad file descriptor) [pid 5679] close(14) = -1 EBADF (Bad file descriptor) [pid 5679] close(15) = -1 EBADF (Bad file descriptor) [pid 5679] close(16) = -1 EBADF (Bad file descriptor) [pid 5679] close(17) = -1 EBADF (Bad file descriptor) [pid 5679] close(18) = -1 EBADF (Bad file descriptor) [pid 5679] close(19) = -1 EBADF (Bad file descriptor) [pid 5679] close(20) = -1 EBADF (Bad file descriptor) [pid 5679] close(21) = -1 EBADF (Bad file descriptor) [pid 5679] close(22) = -1 EBADF (Bad file descriptor) [pid 5679] close(23) = -1 EBADF (Bad file descriptor) [pid 5679] close(24) = -1 EBADF (Bad file descriptor) [pid 5679] close(25) = -1 EBADF (Bad file descriptor) [pid 5679] close(26) = -1 EBADF (Bad file descriptor) [pid 5679] close(27) = -1 EBADF (Bad file descriptor) [pid 5679] close(28) = -1 EBADF (Bad file descriptor) [pid 5679] close(29) = -1 EBADF (Bad file descriptor) [pid 5679] exit_group(0) = ? [pid 5679] +++ exited with 0 +++ [pid 5622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=49, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5622] umount2("./47", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./47", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5622] fstat(3, {st_mode=S_IFDIR|0700, st_size=160, ...}) = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 8 entries */, 32768) = 232 [pid 5622] umount2("./47/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5622] umount2("./47/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./47/bus", {st_mode=S_IFDIR|000, st_size=80, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./47/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./47/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|000, st_size=80, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 4 entries */, 32768) = 104 [pid 5622] umount2("./47/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./47/bus/index", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./47/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./47/bus/index", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./47/bus/index") = 0 [pid 5622] umount2("./47/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./47/bus/work", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./47/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./47/bus/work", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./47/bus/work") = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./47/bus") = 0 [pid 5622] umount2("./47/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./47/file0", {st_mode=S_IFDIR|0600, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./47/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./47/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|0600, st_size=40, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./47/file0") = 0 [pid 5622] umount2("./47/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./47/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./47/binderfs") = 0 [pid 5622] umount2("./47/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./47/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./47/cgroup.net") = 0 [pid 5622] umount2("./47/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./47/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./47/cgroup.cpu") = 0 [pid 5622] umount2("./47/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./47/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./47/cgroup") = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 0 entries */, 32768) = 0 [pid 5622] close(3) = 0 [pid 5622] rmdir("./47") = 0 [pid 5622] mkdir("./48", 0777) = 0 [pid 5622] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-linux-next-kasan-gce-root/strace-static-x86_64: Process 5680 attached , child_tidptr=0x55556a0c16d0) = 50 [pid 5680] set_robust_list(0x55556a0c16e0, 24 [pid 5622] rt_sigprocmask(SIG_SETMASK, [] [pid 5680] <... set_robust_list resumed>) = 0 [pid 5622] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5680] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5680] chdir("./48") = 0 [pid 5680] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5680] setpgid(0, 0) = 0 [pid 5680] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 5680] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5680] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 5680] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5680] write(3, "1000", 4) = 4 [pid 5680] close(3) = 0 [pid 5680] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5680] write(1, "executing program\n", 18) = 18 [pid 5680] mkdirat(AT_FDCWD, "./file0", 0601) = 0 [pid 5680] mkdirat(AT_FDCWD, "./bus", 000) = 0 [pid 5680] mount(NULL, "./bus", "overlay", MS_NOEXEC, "workdir=./bus,lowerdir=./cgroup,upperdir=./file0,") = 0 [pid 5680] chdir("./bus") = 0 [pid 5680] mount(NULL, "./tracing", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 5680] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 3 [pid 5680] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 4 [pid 5680] close(3) = 0 [pid 5680] close(4) = 0 [pid 5680] close(5) = -1 EBADF (Bad file descriptor) [pid 5680] close(6) = -1 EBADF (Bad file descriptor) [pid 5680] close(7) = -1 EBADF (Bad file descriptor) [pid 5680] close(8) = -1 EBADF (Bad file descriptor) [pid 5680] close(9) = -1 EBADF (Bad file descriptor) [pid 5680] close(10) = -1 EBADF (Bad file descriptor) [pid 5680] close(11) = -1 EBADF (Bad file descriptor) [pid 5680] close(12) = -1 EBADF (Bad file descriptor) [pid 5680] close(13) = -1 EBADF (Bad file descriptor) [pid 5680] close(14) = -1 EBADF (Bad file descriptor) [pid 5680] close(15) = -1 EBADF (Bad file descriptor) [pid 5680] close(16) = -1 EBADF (Bad file descriptor) [pid 5680] close(17) = -1 EBADF (Bad file descriptor) [pid 5680] close(18) = -1 EBADF (Bad file descriptor) [pid 5680] close(19) = -1 EBADF (Bad file descriptor) [pid 5680] close(20) = -1 EBADF (Bad file descriptor) [pid 5680] close(21) = -1 EBADF (Bad file descriptor) [pid 5680] close(22) = -1 EBADF (Bad file descriptor) [pid 5680] close(23) = -1 EBADF (Bad file descriptor) [pid 5680] close(24) = -1 EBADF (Bad file descriptor) [pid 5680] close(25) = -1 EBADF (Bad file descriptor) [pid 5680] close(26) = -1 EBADF (Bad file descriptor) [pid 5680] close(27) = -1 EBADF (Bad file descriptor) [pid 5680] close(28) = -1 EBADF (Bad file descriptor) [pid 5680] close(29) = -1 EBADF (Bad file descriptor) [pid 5680] exit_group(0) = ? [pid 5680] +++ exited with 0 +++ [pid 5622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=50, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5622] restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 [pid 5622] umount2("./48", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./48", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5622] fstat(3, {st_mode=S_IFDIR|0700, st_size=160, ...}) = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 8 entries */, 32768) = 232 [pid 5622] umount2("./48/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5622] umount2("./48/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./48/bus", {st_mode=S_IFDIR|000, st_size=80, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./48/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./48/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|000, st_size=80, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 4 entries */, 32768) = 104 [pid 5622] umount2("./48/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./48/bus/index", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./48/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./48/bus/index", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./48/bus/index") = 0 [pid 5622] umount2("./48/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./48/bus/work", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./48/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./48/bus/work", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./48/bus/work") = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./48/bus") = 0 [pid 5622] umount2("./48/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./48/file0", {st_mode=S_IFDIR|0600, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./48/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./48/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|0600, st_size=40, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./48/file0") = 0 [pid 5622] umount2("./48/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./48/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./48/binderfs") = 0 [pid 5622] umount2("./48/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./48/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./48/cgroup.net") = 0 [pid 5622] umount2("./48/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./48/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./48/cgroup.cpu") = 0 [pid 5622] umount2("./48/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./48/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./48/cgroup") = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 0 entries */, 32768) = 0 [pid 5622] close(3) = 0 [pid 5622] rmdir("./48") = 0 [pid 5622] mkdir("./49", 0777) = 0 [pid 5622] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-linux-next-kasan-gce-root/strace-static-x86_64: Process 5681 attached [pid 5681] set_robust_list(0x55556a0c16e0, 24 [pid 5622] <... clone resumed>, child_tidptr=0x55556a0c16d0) = 51 [pid 5681] <... set_robust_list resumed>) = 0 [pid 5681] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5622] rt_sigprocmask(SIG_SETMASK, [] [pid 5681] chdir("./49") = 0 [pid 5681] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5681] setpgid(0, 0) = 0 [pid 5681] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 5622] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5681] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5681] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 5681] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5681] write(3, "1000", 4) = 4 [pid 5681] close(3) = 0 [pid 5681] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5681] write(1, "executing program\n", 18) = 18 [pid 5681] mkdirat(AT_FDCWD, "./file0", 0601) = 0 [pid 5681] mkdirat(AT_FDCWD, "./bus", 000) = 0 [pid 5681] mount(NULL, "./bus", "overlay", MS_NOEXEC, "workdir=./bus,lowerdir=./cgroup,upperdir=./file0,") = 0 [pid 5681] chdir("./bus") = 0 [pid 5681] mount(NULL, "./tracing", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 5681] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 3 executing program [pid 5681] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 4 [pid 5681] close(3) = 0 [pid 5681] close(4) = 0 [pid 5681] close(5) = -1 EBADF (Bad file descriptor) [pid 5681] close(6) = -1 EBADF (Bad file descriptor) [pid 5681] close(7) = -1 EBADF (Bad file descriptor) [pid 5681] close(8) = -1 EBADF (Bad file descriptor) [pid 5681] close(9) = -1 EBADF (Bad file descriptor) [pid 5681] close(10) = -1 EBADF (Bad file descriptor) [pid 5681] close(11) = -1 EBADF (Bad file descriptor) [pid 5681] close(12) = -1 EBADF (Bad file descriptor) [pid 5681] close(13) = -1 EBADF (Bad file descriptor) [pid 5681] close(14) = -1 EBADF (Bad file descriptor) [pid 5681] close(15) = -1 EBADF (Bad file descriptor) [pid 5681] close(16) = -1 EBADF (Bad file descriptor) [pid 5681] close(17) = -1 EBADF (Bad file descriptor) [pid 5681] close(18) = -1 EBADF (Bad file descriptor) [pid 5681] close(19) = -1 EBADF (Bad file descriptor) [pid 5681] close(20) = -1 EBADF (Bad file descriptor) [pid 5681] close(21) = -1 EBADF (Bad file descriptor) [pid 5681] close(22) = -1 EBADF (Bad file descriptor) [pid 5681] close(23) = -1 EBADF (Bad file descriptor) [pid 5681] close(24) = -1 EBADF (Bad file descriptor) [pid 5681] close(25) = -1 EBADF (Bad file descriptor) [pid 5681] close(26) = -1 EBADF (Bad file descriptor) [pid 5681] close(27) = -1 EBADF (Bad file descriptor) [pid 5681] close(28) = -1 EBADF (Bad file descriptor) [pid 5681] close(29) = -1 EBADF (Bad file descriptor) [pid 5681] exit_group(0) = ? [pid 5681] +++ exited with 0 +++ [pid 5622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=51, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5622] restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 [pid 5622] umount2("./49", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./49", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5622] fstat(3, {st_mode=S_IFDIR|0700, st_size=160, ...}) = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 8 entries */, 32768) = 232 [pid 5622] umount2("./49/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5622] umount2("./49/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./49/bus", {st_mode=S_IFDIR|000, st_size=80, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./49/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./49/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|000, st_size=80, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 4 entries */, 32768) = 104 [pid 5622] umount2("./49/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./49/bus/index", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./49/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./49/bus/index", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./49/bus/index") = 0 [pid 5622] umount2("./49/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./49/bus/work", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./49/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./49/bus/work", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./49/bus/work") = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./49/bus") = 0 [pid 5622] umount2("./49/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./49/file0", {st_mode=S_IFDIR|0600, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./49/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./49/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|0600, st_size=40, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./49/file0") = 0 [pid 5622] umount2("./49/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./49/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./49/binderfs") = 0 [pid 5622] umount2("./49/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./49/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./49/cgroup.net") = 0 [pid 5622] umount2("./49/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./49/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./49/cgroup.cpu") = 0 [pid 5622] umount2("./49/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./49/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./49/cgroup") = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 0 entries */, 32768) = 0 [pid 5622] close(3) = 0 [pid 5622] rmdir("./49") = 0 [pid 5622] mkdir("./50", 0777) = 0 [pid 5622] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-linux-next-kasan-gce-root/strace-static-x86_64: Process 5682 attached , child_tidptr=0x55556a0c16d0) = 52 [pid 5622] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5682] set_robust_list(0x55556a0c16e0, 24) = 0 [pid 5682] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5682] chdir("./50") = 0 [pid 5682] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5682] setpgid(0, 0) = 0 [pid 5682] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 5682] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5682] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 5682] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5682] write(3, "1000", 4) = 4 executing program [pid 5682] close(3) = 0 [pid 5682] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5682] write(1, "executing program\n", 18) = 18 [pid 5682] mkdirat(AT_FDCWD, "./file0", 0601) = 0 [pid 5682] mkdirat(AT_FDCWD, "./bus", 000) = 0 [pid 5682] mount(NULL, "./bus", "overlay", MS_NOEXEC, "workdir=./bus,lowerdir=./cgroup,upperdir=./file0,") = 0 [pid 5682] chdir("./bus") = 0 [pid 5682] mount(NULL, "./tracing", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 5682] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 3 [pid 5682] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 4 [pid 5682] close(3) = 0 [pid 5682] close(4) = 0 [pid 5682] close(5) = -1 EBADF (Bad file descriptor) [pid 5682] close(6) = -1 EBADF (Bad file descriptor) [pid 5682] close(7) = -1 EBADF (Bad file descriptor) [pid 5682] close(8) = -1 EBADF (Bad file descriptor) [pid 5682] close(9) = -1 EBADF (Bad file descriptor) [pid 5682] close(10) = -1 EBADF (Bad file descriptor) [pid 5682] close(11) = -1 EBADF (Bad file descriptor) [pid 5682] close(12) = -1 EBADF (Bad file descriptor) [pid 5682] close(13) = -1 EBADF (Bad file descriptor) [pid 5682] close(14) = -1 EBADF (Bad file descriptor) [pid 5682] close(15) = -1 EBADF (Bad file descriptor) [pid 5682] close(16) = -1 EBADF (Bad file descriptor) [pid 5682] close(17) = -1 EBADF (Bad file descriptor) [pid 5682] close(18) = -1 EBADF (Bad file descriptor) [pid 5682] close(19) = -1 EBADF (Bad file descriptor) [pid 5682] close(20) = -1 EBADF (Bad file descriptor) [pid 5682] close(21) = -1 EBADF (Bad file descriptor) [pid 5682] close(22) = -1 EBADF (Bad file descriptor) [pid 5682] close(23) = -1 EBADF (Bad file descriptor) [pid 5682] close(24) = -1 EBADF (Bad file descriptor) [pid 5682] close(25) = -1 EBADF (Bad file descriptor) [pid 5682] close(26) = -1 EBADF (Bad file descriptor) [pid 5682] close(27) = -1 EBADF (Bad file descriptor) [pid 5682] close(28) = -1 EBADF (Bad file descriptor) [pid 5682] close(29) = -1 EBADF (Bad file descriptor) [pid 5682] exit_group(0) = ? [pid 5682] +++ exited with 0 +++ [pid 5622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=52, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5622] restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 [pid 5622] umount2("./50", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./50", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5622] fstat(3, {st_mode=S_IFDIR|0700, st_size=160, ...}) = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 8 entries */, 32768) = 232 [pid 5622] umount2("./50/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5622] umount2("./50/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./50/bus", {st_mode=S_IFDIR|000, st_size=80, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./50/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./50/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|000, st_size=80, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 4 entries */, 32768) = 104 [pid 5622] umount2("./50/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./50/bus/index", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./50/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./50/bus/index", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./50/bus/index") = 0 [pid 5622] umount2("./50/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./50/bus/work", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./50/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./50/bus/work", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./50/bus/work") = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./50/bus") = 0 [pid 5622] umount2("./50/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./50/file0", {st_mode=S_IFDIR|0600, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./50/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./50/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|0600, st_size=40, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./50/file0") = 0 [pid 5622] umount2("./50/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./50/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./50/binderfs") = 0 [pid 5622] umount2("./50/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./50/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./50/cgroup.net") = 0 [pid 5622] umount2("./50/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./50/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./50/cgroup.cpu") = 0 [pid 5622] umount2("./50/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./50/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./50/cgroup") = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 0 entries */, 32768) = 0 [pid 5622] close(3) = 0 [pid 5622] rmdir("./50") = 0 [pid 5622] mkdir("./51", 0777) = 0 [pid 5622] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-linux-next-kasan-gce-root/strace-static-x86_64: Process 5683 attached , child_tidptr=0x55556a0c16d0) = 53 [pid 5683] set_robust_list(0x55556a0c16e0, 24) = 0 [pid 5683] rt_sigprocmask(SIG_SETMASK, [] [pid 5622] rt_sigprocmask(SIG_SETMASK, [] [pid 5683] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5622] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5683] chdir("./51") = 0 [pid 5683] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5683] setpgid(0, 0) = 0 [pid 5683] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 5683] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5683] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 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 5683] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5683] write(1, "executing program\n", 18) = 18 [pid 5683] mkdirat(AT_FDCWD, "./file0", 0601) = 0 [pid 5683] mkdirat(AT_FDCWD, "./bus", 000) = 0 [pid 5683] mount(NULL, "./bus", "overlay", MS_NOEXEC, "workdir=./bus,lowerdir=./cgroup,upperdir=./file0,") = 0 executing program [pid 5683] chdir("./bus") = 0 [pid 5683] mount(NULL, "./tracing", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 5683] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 3 [pid 5683] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 4 [pid 5683] close(3) = 0 [pid 5683] close(4) = 0 [pid 5683] close(5) = -1 EBADF (Bad file descriptor) [pid 5683] close(6) = -1 EBADF (Bad file descriptor) [pid 5683] close(7) = -1 EBADF (Bad file descriptor) [pid 5683] close(8) = -1 EBADF (Bad file descriptor) [pid 5683] close(9) = -1 EBADF (Bad file descriptor) [pid 5683] close(10) = -1 EBADF (Bad file descriptor) [pid 5683] close(11) = -1 EBADF (Bad file descriptor) [pid 5683] close(12) = -1 EBADF (Bad file descriptor) [pid 5683] close(13) = -1 EBADF (Bad file descriptor) [pid 5683] close(14) = -1 EBADF (Bad file descriptor) [pid 5683] close(15) = -1 EBADF (Bad file descriptor) [pid 5683] close(16) = -1 EBADF (Bad file descriptor) [pid 5683] close(17) = -1 EBADF (Bad file descriptor) [pid 5683] close(18) = -1 EBADF (Bad file descriptor) [pid 5683] close(19) = -1 EBADF (Bad file descriptor) [pid 5683] close(20) = -1 EBADF (Bad file descriptor) [pid 5683] close(21) = -1 EBADF (Bad file descriptor) [pid 5683] close(22) = -1 EBADF (Bad file descriptor) [pid 5683] close(23) = -1 EBADF (Bad file descriptor) [pid 5683] close(24) = -1 EBADF (Bad file descriptor) [pid 5683] close(25) = -1 EBADF (Bad file descriptor) [pid 5683] close(26) = -1 EBADF (Bad file descriptor) [pid 5683] close(27) = -1 EBADF (Bad file descriptor) [pid 5683] close(28) = -1 EBADF (Bad file descriptor) [pid 5683] close(29) = -1 EBADF (Bad file descriptor) [pid 5683] exit_group(0) = ? [pid 5683] +++ exited with 0 +++ [pid 5622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=53, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5622] restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 [pid 5622] umount2("./51", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./51", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5622] fstat(3, {st_mode=S_IFDIR|0700, st_size=160, ...}) = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 8 entries */, 32768) = 232 [pid 5622] umount2("./51/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5622] umount2("./51/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./51/bus", {st_mode=S_IFDIR|000, st_size=80, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./51/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./51/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|000, st_size=80, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 4 entries */, 32768) = 104 [pid 5622] umount2("./51/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./51/bus/index", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./51/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./51/bus/index", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./51/bus/index") = 0 [pid 5622] umount2("./51/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./51/bus/work", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./51/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./51/bus/work", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./51/bus/work") = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./51/bus") = 0 [pid 5622] umount2("./51/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./51/file0", {st_mode=S_IFDIR|0600, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./51/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./51/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|0600, st_size=40, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./51/file0") = 0 [pid 5622] umount2("./51/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./51/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./51/binderfs") = 0 [pid 5622] umount2("./51/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./51/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./51/cgroup.net") = 0 [pid 5622] umount2("./51/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./51/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./51/cgroup.cpu") = 0 [pid 5622] umount2("./51/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./51/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./51/cgroup") = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 0 entries */, 32768) = 0 [pid 5622] close(3) = 0 [pid 5622] rmdir("./51") = 0 [pid 5622] mkdir("./52", 0777) = 0 [pid 5622] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-linux-next-kasan-gce-root/strace-static-x86_64: Process 5684 attached , child_tidptr=0x55556a0c16d0) = 54 [pid 5622] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5684] set_robust_list(0x55556a0c16e0, 24) = 0 [pid 5684] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5684] chdir("./52") = 0 [pid 5684] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5684] setpgid(0, 0) = 0 [pid 5684] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 5684] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5684] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 5684] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5684] write(3, "1000", 4) = 4 [pid 5684] close(3) = 0 [pid 5684] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5684] write(1, "executing program\n", 18) = 18 [pid 5684] mkdirat(AT_FDCWD, "./file0", 0601) = 0 [pid 5684] mkdirat(AT_FDCWD, "./bus", 000) = 0 [pid 5684] mount(NULL, "./bus", "overlay", MS_NOEXEC, "workdir=./bus,lowerdir=./cgroup,upperdir=./file0,") = 0 [pid 5684] chdir("./bus") = 0 [pid 5684] mount(NULL, "./tracing", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 5684] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 3 [pid 5684] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 4 [pid 5684] close(3) = 0 [pid 5684] close(4) = 0 [pid 5684] close(5) = -1 EBADF (Bad file descriptor) [pid 5684] close(6) = -1 EBADF (Bad file descriptor) [pid 5684] close(7) = -1 EBADF (Bad file descriptor) [pid 5684] close(8) = -1 EBADF (Bad file descriptor) [pid 5684] close(9) = -1 EBADF (Bad file descriptor) [pid 5684] close(10) = -1 EBADF (Bad file descriptor) [pid 5684] close(11) = -1 EBADF (Bad file descriptor) [pid 5684] close(12) = -1 EBADF (Bad file descriptor) [pid 5684] close(13) = -1 EBADF (Bad file descriptor) [pid 5684] close(14) = -1 EBADF (Bad file descriptor) [pid 5684] close(15) = -1 EBADF (Bad file descriptor) [pid 5684] close(16) = -1 EBADF (Bad file descriptor) [pid 5684] close(17) = -1 EBADF (Bad file descriptor) [pid 5684] close(18) = -1 EBADF (Bad file descriptor) [pid 5684] close(19) = -1 EBADF (Bad file descriptor) [pid 5684] close(20) = -1 EBADF (Bad file descriptor) [pid 5684] close(21) = -1 EBADF (Bad file descriptor) [pid 5684] close(22) = -1 EBADF (Bad file descriptor) [pid 5684] close(23) = -1 EBADF (Bad file descriptor) [pid 5684] close(24) = -1 EBADF (Bad file descriptor) [pid 5684] close(25) = -1 EBADF (Bad file descriptor) [pid 5684] close(26) = -1 EBADF (Bad file descriptor) [pid 5684] close(27) = -1 EBADF (Bad file descriptor) [pid 5684] close(28) = -1 EBADF (Bad file descriptor) [pid 5684] close(29) = -1 EBADF (Bad file descriptor) [pid 5684] exit_group(0) = ? [pid 5684] +++ exited with 0 +++ [pid 5622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=54, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5622] restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 [pid 5622] umount2("./52", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./52", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5622] fstat(3, {st_mode=S_IFDIR|0700, st_size=160, ...}) = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 8 entries */, 32768) = 232 [pid 5622] umount2("./52/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5622] umount2("./52/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./52/bus", {st_mode=S_IFDIR|000, st_size=80, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./52/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./52/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|000, st_size=80, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 4 entries */, 32768) = 104 [pid 5622] umount2("./52/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./52/bus/index", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./52/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./52/bus/index", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./52/bus/index") = 0 [pid 5622] umount2("./52/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./52/bus/work", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./52/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./52/bus/work", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./52/bus/work") = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./52/bus") = 0 [pid 5622] umount2("./52/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./52/file0", {st_mode=S_IFDIR|0600, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./52/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./52/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|0600, st_size=40, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./52/file0") = 0 [pid 5622] umount2("./52/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./52/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./52/binderfs") = 0 [pid 5622] umount2("./52/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./52/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./52/cgroup.net") = 0 [pid 5622] umount2("./52/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./52/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./52/cgroup.cpu") = 0 [pid 5622] umount2("./52/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./52/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./52/cgroup") = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 0 entries */, 32768) = 0 [pid 5622] close(3) = 0 [pid 5622] rmdir("./52") = 0 [pid 5622] mkdir("./53", 0777) = 0 [pid 5622] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-linux-next-kasan-gce-root/strace-static-x86_64: Process 5685 attached [pid 5685] set_robust_list(0x55556a0c16e0, 24 [pid 5622] <... clone resumed>, child_tidptr=0x55556a0c16d0) = 55 [pid 5685] <... set_robust_list resumed>) = 0 [pid 5685] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5622] rt_sigprocmask(SIG_SETMASK, [] [pid 5685] chdir("./53") = 0 [pid 5685] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5685] setpgid(0, 0) = 0 [pid 5685] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 5685] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5685] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 5622] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5685] <... symlink resumed>) = 0 [pid 5685] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5685] write(3, "1000", 4) = 4 [pid 5685] close(3) = 0 [pid 5685] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5685] write(1, "executing program\n", 18) = 18 [pid 5685] mkdirat(AT_FDCWD, "./file0", 0601) = 0 executing program [pid 5685] mkdirat(AT_FDCWD, "./bus", 000) = 0 [pid 5685] mount(NULL, "./bus", "overlay", MS_NOEXEC, "workdir=./bus,lowerdir=./cgroup,upperdir=./file0,") = 0 [pid 5685] chdir("./bus") = 0 [pid 5685] mount(NULL, "./tracing", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 5685] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 3 [pid 5685] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 4 [pid 5685] close(3) = 0 [pid 5685] close(4) = 0 [pid 5685] close(5) = -1 EBADF (Bad file descriptor) [pid 5685] close(6) = -1 EBADF (Bad file descriptor) [pid 5685] close(7) = -1 EBADF (Bad file descriptor) [pid 5685] close(8) = -1 EBADF (Bad file descriptor) [pid 5685] close(9) = -1 EBADF (Bad file descriptor) [pid 5685] close(10) = -1 EBADF (Bad file descriptor) [pid 5685] close(11) = -1 EBADF (Bad file descriptor) [pid 5685] close(12) = -1 EBADF (Bad file descriptor) [pid 5685] close(13) = -1 EBADF (Bad file descriptor) [pid 5685] close(14) = -1 EBADF (Bad file descriptor) [pid 5685] close(15) = -1 EBADF (Bad file descriptor) [pid 5685] close(16) = -1 EBADF (Bad file descriptor) [pid 5685] close(17) = -1 EBADF (Bad file descriptor) [pid 5685] close(18) = -1 EBADF (Bad file descriptor) [pid 5685] close(19) = -1 EBADF (Bad file descriptor) [pid 5685] close(20) = -1 EBADF (Bad file descriptor) [pid 5685] close(21) = -1 EBADF (Bad file descriptor) [pid 5685] close(22) = -1 EBADF (Bad file descriptor) [pid 5685] close(23) = -1 EBADF (Bad file descriptor) [pid 5685] close(24) = -1 EBADF (Bad file descriptor) [pid 5685] close(25) = -1 EBADF (Bad file descriptor) [pid 5685] close(26) = -1 EBADF (Bad file descriptor) [pid 5685] close(27) = -1 EBADF (Bad file descriptor) [pid 5685] close(28) = -1 EBADF (Bad file descriptor) [pid 5685] close(29) = -1 EBADF (Bad file descriptor) [pid 5685] exit_group(0) = ? [pid 5685] +++ exited with 0 +++ [pid 5622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=55, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5622] restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 [pid 5622] umount2("./53", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./53", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5622] fstat(3, {st_mode=S_IFDIR|0700, st_size=160, ...}) = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 8 entries */, 32768) = 232 [pid 5622] umount2("./53/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5622] umount2("./53/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./53/bus", {st_mode=S_IFDIR|000, st_size=80, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./53/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./53/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|000, st_size=80, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 4 entries */, 32768) = 104 [pid 5622] umount2("./53/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./53/bus/index", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./53/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./53/bus/index", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./53/bus/index") = 0 [pid 5622] umount2("./53/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./53/bus/work", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./53/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./53/bus/work", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./53/bus/work") = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./53/bus") = 0 [pid 5622] umount2("./53/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./53/file0", {st_mode=S_IFDIR|0600, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./53/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./53/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|0600, st_size=40, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./53/file0") = 0 [pid 5622] umount2("./53/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./53/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./53/binderfs") = 0 [pid 5622] umount2("./53/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./53/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./53/cgroup.net") = 0 [pid 5622] umount2("./53/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./53/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./53/cgroup.cpu") = 0 [pid 5622] umount2("./53/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./53/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./53/cgroup") = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 0 entries */, 32768) = 0 [pid 5622] close(3) = 0 [pid 5622] rmdir("./53") = 0 [pid 5622] mkdir("./54", 0777) = 0 [pid 5622] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-linux-next-kasan-gce-root/strace-static-x86_64: Process 5686 attached [pid 5686] set_robust_list(0x55556a0c16e0, 24 [pid 5622] <... clone resumed>, child_tidptr=0x55556a0c16d0) = 56 [pid 5686] <... set_robust_list resumed>) = 0 [pid 5686] rt_sigprocmask(SIG_SETMASK, [] [pid 5622] rt_sigprocmask(SIG_SETMASK, [] [pid 5686] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5622] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5686] chdir("./54") = 0 [pid 5686] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5686] setpgid(0, 0) = 0 [pid 5686] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 5686] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5686] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 5686] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5686] write(3, "1000", 4) = 4 [pid 5686] close(3) = 0 [pid 5686] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5686] write(1, "executing program\n", 18) = 18 [pid 5686] mkdirat(AT_FDCWD, "./file0", 0601) = 0 [pid 5686] mkdirat(AT_FDCWD, "./bus", 000) = 0 [pid 5686] mount(NULL, "./bus", "overlay", MS_NOEXEC, "workdir=./bus,lowerdir=./cgroup,upperdir=./file0,") = 0 [pid 5686] chdir("./bus") = 0 [pid 5686] mount(NULL, "./tracing", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 5686] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 3 [pid 5686] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 4 [pid 5686] close(3) = 0 [pid 5686] close(4) = 0 [pid 5686] close(5) = -1 EBADF (Bad file descriptor) [pid 5686] close(6) = -1 EBADF (Bad file descriptor) [pid 5686] close(7) = -1 EBADF (Bad file descriptor) [pid 5686] close(8) = -1 EBADF (Bad file descriptor) [pid 5686] close(9) = -1 EBADF (Bad file descriptor) [pid 5686] close(10) = -1 EBADF (Bad file descriptor) [pid 5686] close(11) = -1 EBADF (Bad file descriptor) [pid 5686] close(12) = -1 EBADF (Bad file descriptor) [pid 5686] close(13) = -1 EBADF (Bad file descriptor) [pid 5686] close(14) = -1 EBADF (Bad file descriptor) [pid 5686] close(15) = -1 EBADF (Bad file descriptor) [pid 5686] close(16) = -1 EBADF (Bad file descriptor) [pid 5686] close(17) = -1 EBADF (Bad file descriptor) [pid 5686] close(18) = -1 EBADF (Bad file descriptor) [pid 5686] close(19) = -1 EBADF (Bad file descriptor) [pid 5686] close(20) = -1 EBADF (Bad file descriptor) [pid 5686] close(21) = -1 EBADF (Bad file descriptor) [pid 5686] close(22) = -1 EBADF (Bad file descriptor) [pid 5686] close(23) = -1 EBADF (Bad file descriptor) [pid 5686] close(24) = -1 EBADF (Bad file descriptor) [pid 5686] close(25) = -1 EBADF (Bad file descriptor) [pid 5686] close(26) = -1 EBADF (Bad file descriptor) [pid 5686] close(27) = -1 EBADF (Bad file descriptor) [pid 5686] close(28) = -1 EBADF (Bad file descriptor) [pid 5686] close(29) = -1 EBADF (Bad file descriptor) [pid 5686] exit_group(0) = ? [pid 5686] +++ exited with 0 +++ [pid 5622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=56, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5622] restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 [pid 5622] umount2("./54", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./54", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5622] fstat(3, {st_mode=S_IFDIR|0700, st_size=160, ...}) = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 8 entries */, 32768) = 232 [pid 5622] umount2("./54/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5622] umount2("./54/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./54/bus", {st_mode=S_IFDIR|000, st_size=80, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./54/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./54/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|000, st_size=80, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 4 entries */, 32768) = 104 [pid 5622] umount2("./54/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./54/bus/index", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./54/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./54/bus/index", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./54/bus/index") = 0 [pid 5622] umount2("./54/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./54/bus/work", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./54/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./54/bus/work", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./54/bus/work") = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./54/bus") = 0 [pid 5622] umount2("./54/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./54/file0", {st_mode=S_IFDIR|0600, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./54/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./54/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|0600, st_size=40, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./54/file0") = 0 [pid 5622] umount2("./54/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./54/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./54/binderfs") = 0 [pid 5622] umount2("./54/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./54/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./54/cgroup.net") = 0 [pid 5622] umount2("./54/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./54/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./54/cgroup.cpu") = 0 [pid 5622] umount2("./54/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./54/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./54/cgroup") = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 0 entries */, 32768) = 0 [pid 5622] close(3) = 0 [pid 5622] rmdir("./54") = 0 [pid 5622] mkdir("./55", 0777) = 0 [pid 5622] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-linux-next-kasan-gce-root/strace-static-x86_64: Process 5687 attached [pid 5687] set_robust_list(0x55556a0c16e0, 24 [pid 5622] <... clone resumed>, child_tidptr=0x55556a0c16d0) = 57 [pid 5687] <... set_robust_list resumed>) = 0 [pid 5687] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5622] rt_sigprocmask(SIG_SETMASK, [] [pid 5687] chdir("./55" [pid 5622] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5687] <... chdir resumed>) = 0 [pid 5687] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5687] setpgid(0, 0) = 0 [pid 5687] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 5687] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5687] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 5687] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5687] write(3, "1000", 4) = 4 [pid 5687] close(3) = 0 [pid 5687] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5687] write(1, "executing program\n", 18) = 18 executing program [pid 5687] mkdirat(AT_FDCWD, "./file0", 0601) = 0 [pid 5687] mkdirat(AT_FDCWD, "./bus", 000) = 0 [pid 5687] mount(NULL, "./bus", "overlay", MS_NOEXEC, "workdir=./bus,lowerdir=./cgroup,upperdir=./file0,") = 0 [pid 5687] chdir("./bus") = 0 [pid 5687] mount(NULL, "./tracing", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 5687] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 3 [pid 5687] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 4 [pid 5687] close(3) = 0 [pid 5687] close(4) = 0 [pid 5687] close(5) = -1 EBADF (Bad file descriptor) [pid 5687] close(6) = -1 EBADF (Bad file descriptor) [pid 5687] close(7) = -1 EBADF (Bad file descriptor) [pid 5687] close(8) = -1 EBADF (Bad file descriptor) [pid 5687] close(9) = -1 EBADF (Bad file descriptor) [pid 5687] close(10) = -1 EBADF (Bad file descriptor) [pid 5687] close(11) = -1 EBADF (Bad file descriptor) [pid 5687] close(12) = -1 EBADF (Bad file descriptor) [pid 5687] close(13) = -1 EBADF (Bad file descriptor) [pid 5687] close(14) = -1 EBADF (Bad file descriptor) [pid 5687] close(15) = -1 EBADF (Bad file descriptor) [pid 5687] close(16) = -1 EBADF (Bad file descriptor) [pid 5687] close(17) = -1 EBADF (Bad file descriptor) [pid 5687] close(18) = -1 EBADF (Bad file descriptor) [pid 5687] close(19) = -1 EBADF (Bad file descriptor) [pid 5687] close(20) = -1 EBADF (Bad file descriptor) [pid 5687] close(21) = -1 EBADF (Bad file descriptor) [pid 5687] close(22) = -1 EBADF (Bad file descriptor) [pid 5687] close(23) = -1 EBADF (Bad file descriptor) [pid 5687] close(24) = -1 EBADF (Bad file descriptor) [pid 5687] close(25) = -1 EBADF (Bad file descriptor) [pid 5687] close(26) = -1 EBADF (Bad file descriptor) [pid 5687] close(27) = -1 EBADF (Bad file descriptor) [pid 5687] close(28) = -1 EBADF (Bad file descriptor) [pid 5687] close(29) = -1 EBADF (Bad file descriptor) [pid 5687] exit_group(0) = ? [pid 5687] +++ exited with 0 +++ [pid 5622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=57, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5622] restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 [pid 5622] umount2("./55", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./55", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5622] fstat(3, {st_mode=S_IFDIR|0700, st_size=160, ...}) = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 8 entries */, 32768) = 232 [pid 5622] umount2("./55/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5622] umount2("./55/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./55/bus", {st_mode=S_IFDIR|000, st_size=80, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./55/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./55/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|000, st_size=80, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 4 entries */, 32768) = 104 [pid 5622] umount2("./55/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./55/bus/index", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./55/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./55/bus/index", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./55/bus/index") = 0 [pid 5622] umount2("./55/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./55/bus/work", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./55/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./55/bus/work", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./55/bus/work") = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./55/bus") = 0 [pid 5622] umount2("./55/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./55/file0", {st_mode=S_IFDIR|0600, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./55/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./55/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|0600, st_size=40, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./55/file0") = 0 [pid 5622] umount2("./55/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./55/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./55/binderfs") = 0 [pid 5622] umount2("./55/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./55/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./55/cgroup.net") = 0 [pid 5622] umount2("./55/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./55/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./55/cgroup.cpu") = 0 [pid 5622] umount2("./55/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./55/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./55/cgroup") = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 0 entries */, 32768) = 0 [pid 5622] close(3) = 0 [pid 5622] rmdir("./55") = 0 [pid 5622] mkdir("./56", 0777) = 0 [pid 5622] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-linux-next-kasan-gce-root/strace-static-x86_64: Process 5688 attached , child_tidptr=0x55556a0c16d0) = 58 [pid 5688] set_robust_list(0x55556a0c16e0, 24) = 0 [pid 5622] rt_sigprocmask(SIG_SETMASK, [] [pid 5688] rt_sigprocmask(SIG_SETMASK, [] [pid 5622] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5688] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5688] chdir("./56") = 0 [pid 5688] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5688] setpgid(0, 0) = 0 [pid 5688] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 5688] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5688] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 5688] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5688] write(3, "1000", 4) = 4 [pid 5688] close(3) = 0 [pid 5688] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5688] write(1, "executing program\n", 18) = 18 executing program [pid 5688] mkdirat(AT_FDCWD, "./file0", 0601) = 0 [pid 5688] mkdirat(AT_FDCWD, "./bus", 000) = 0 [pid 5688] mount(NULL, "./bus", "overlay", MS_NOEXEC, "workdir=./bus,lowerdir=./cgroup,upperdir=./file0,") = 0 [pid 5688] chdir("./bus") = 0 [pid 5688] mount(NULL, "./tracing", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 5688] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 3 [pid 5688] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 4 [pid 5688] close(3) = 0 [pid 5688] close(4) = 0 [pid 5688] close(5) = -1 EBADF (Bad file descriptor) [pid 5688] close(6) = -1 EBADF (Bad file descriptor) [pid 5688] close(7) = -1 EBADF (Bad file descriptor) [pid 5688] close(8) = -1 EBADF (Bad file descriptor) [pid 5688] close(9) = -1 EBADF (Bad file descriptor) [pid 5688] close(10) = -1 EBADF (Bad file descriptor) [pid 5688] close(11) = -1 EBADF (Bad file descriptor) [pid 5688] close(12) = -1 EBADF (Bad file descriptor) [pid 5688] close(13) = -1 EBADF (Bad file descriptor) [pid 5688] close(14) = -1 EBADF (Bad file descriptor) [pid 5688] close(15) = -1 EBADF (Bad file descriptor) [pid 5688] close(16) = -1 EBADF (Bad file descriptor) [pid 5688] close(17) = -1 EBADF (Bad file descriptor) [pid 5688] close(18) = -1 EBADF (Bad file descriptor) [pid 5688] close(19) = -1 EBADF (Bad file descriptor) [pid 5688] close(20) = -1 EBADF (Bad file descriptor) [pid 5688] close(21) = -1 EBADF (Bad file descriptor) [pid 5688] close(22) = -1 EBADF (Bad file descriptor) [pid 5688] close(23) = -1 EBADF (Bad file descriptor) [pid 5688] close(24) = -1 EBADF (Bad file descriptor) [pid 5688] close(25) = -1 EBADF (Bad file descriptor) [pid 5688] close(26) = -1 EBADF (Bad file descriptor) [pid 5688] close(27) = -1 EBADF (Bad file descriptor) [pid 5688] close(28) = -1 EBADF (Bad file descriptor) [pid 5688] close(29) = -1 EBADF (Bad file descriptor) [pid 5688] exit_group(0) = ? [pid 5688] +++ exited with 0 +++ [pid 5622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=58, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5622] restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 [pid 5622] umount2("./56", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./56", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5622] fstat(3, {st_mode=S_IFDIR|0700, st_size=160, ...}) = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 8 entries */, 32768) = 232 [pid 5622] umount2("./56/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5622] umount2("./56/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./56/bus", {st_mode=S_IFDIR|000, st_size=80, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./56/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./56/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|000, st_size=80, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 4 entries */, 32768) = 104 [pid 5622] umount2("./56/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./56/bus/index", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./56/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./56/bus/index", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./56/bus/index") = 0 [pid 5622] umount2("./56/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./56/bus/work", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./56/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./56/bus/work", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./56/bus/work") = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./56/bus") = 0 [pid 5622] umount2("./56/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./56/file0", {st_mode=S_IFDIR|0600, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./56/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./56/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|0600, st_size=40, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./56/file0") = 0 [pid 5622] umount2("./56/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./56/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./56/binderfs") = 0 [pid 5622] umount2("./56/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./56/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./56/cgroup.net") = 0 [pid 5622] umount2("./56/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./56/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./56/cgroup.cpu") = 0 [pid 5622] umount2("./56/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./56/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./56/cgroup") = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 0 entries */, 32768) = 0 [pid 5622] close(3) = 0 [pid 5622] rmdir("./56") = 0 [pid 5622] mkdir("./57", 0777) = 0 [pid 5622] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556a0c16d0) = 59 ci-upstream-linux-next-kasan-gce-root/strace-static-x86_64: Process 5689 attached [pid 5622] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5689] set_robust_list(0x55556a0c16e0, 24) = 0 [pid 5689] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5689] chdir("./57") = 0 [pid 5689] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5689] setpgid(0, 0) = 0 [pid 5689] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 5689] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5689] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 5689] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5689] write(3, "1000", 4) = 4 [pid 5689] close(3) = 0 [pid 5689] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5689] write(1, "executing program\n", 18) = 18 [pid 5689] mkdirat(AT_FDCWD, "./file0", 0601) = 0 executing program [pid 5689] mkdirat(AT_FDCWD, "./bus", 000) = 0 [pid 5689] mount(NULL, "./bus", "overlay", MS_NOEXEC, "workdir=./bus,lowerdir=./cgroup,upperdir=./file0,") = 0 [pid 5689] chdir("./bus") = 0 [pid 5689] mount(NULL, "./tracing", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 5689] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 3 [pid 5689] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 4 [pid 5689] close(3) = 0 [pid 5689] close(4) = 0 [pid 5689] close(5) = -1 EBADF (Bad file descriptor) [pid 5689] close(6) = -1 EBADF (Bad file descriptor) [pid 5689] close(7) = -1 EBADF (Bad file descriptor) [pid 5689] close(8) = -1 EBADF (Bad file descriptor) [pid 5689] close(9) = -1 EBADF (Bad file descriptor) [pid 5689] close(10) = -1 EBADF (Bad file descriptor) [pid 5689] close(11) = -1 EBADF (Bad file descriptor) [pid 5689] close(12) = -1 EBADF (Bad file descriptor) [pid 5689] close(13) = -1 EBADF (Bad file descriptor) [pid 5689] close(14) = -1 EBADF (Bad file descriptor) [pid 5689] close(15) = -1 EBADF (Bad file descriptor) [pid 5689] close(16) = -1 EBADF (Bad file descriptor) [pid 5689] close(17) = -1 EBADF (Bad file descriptor) [pid 5689] close(18) = -1 EBADF (Bad file descriptor) [pid 5689] close(19) = -1 EBADF (Bad file descriptor) [pid 5689] close(20) = -1 EBADF (Bad file descriptor) [pid 5689] close(21) = -1 EBADF (Bad file descriptor) [pid 5689] close(22) = -1 EBADF (Bad file descriptor) [pid 5689] close(23) = -1 EBADF (Bad file descriptor) [pid 5689] close(24) = -1 EBADF (Bad file descriptor) [pid 5689] close(25) = -1 EBADF (Bad file descriptor) [pid 5689] close(26) = -1 EBADF (Bad file descriptor) [pid 5689] close(27) = -1 EBADF (Bad file descriptor) [pid 5689] close(28) = -1 EBADF (Bad file descriptor) [pid 5689] close(29) = -1 EBADF (Bad file descriptor) [pid 5689] exit_group(0) = ? [pid 5689] +++ exited with 0 +++ [pid 5622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=59, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5622] restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 [pid 5622] umount2("./57", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./57", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5622] fstat(3, {st_mode=S_IFDIR|0700, st_size=160, ...}) = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 8 entries */, 32768) = 232 [pid 5622] umount2("./57/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5622] umount2("./57/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./57/bus", {st_mode=S_IFDIR|000, st_size=80, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./57/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./57/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|000, st_size=80, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 4 entries */, 32768) = 104 [pid 5622] umount2("./57/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./57/bus/index", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./57/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./57/bus/index", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./57/bus/index") = 0 [pid 5622] umount2("./57/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./57/bus/work", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./57/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./57/bus/work", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./57/bus/work") = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./57/bus") = 0 [pid 5622] umount2("./57/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./57/file0", {st_mode=S_IFDIR|0600, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./57/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./57/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|0600, st_size=40, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./57/file0") = 0 [pid 5622] umount2("./57/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./57/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./57/binderfs") = 0 [pid 5622] umount2("./57/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./57/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./57/cgroup.net") = 0 [pid 5622] umount2("./57/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./57/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./57/cgroup.cpu") = 0 [pid 5622] umount2("./57/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./57/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./57/cgroup") = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 0 entries */, 32768) = 0 [pid 5622] close(3) = 0 [pid 5622] rmdir("./57") = 0 [pid 5622] mkdir("./58", 0777) = 0 [pid 5622] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-linux-next-kasan-gce-root/strace-static-x86_64: Process 5690 attached , child_tidptr=0x55556a0c16d0) = 60 [pid 5690] set_robust_list(0x55556a0c16e0, 24 [pid 5622] rt_sigprocmask(SIG_SETMASK, [] [pid 5690] <... set_robust_list resumed>) = 0 [pid 5622] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5690] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5690] chdir("./58") = 0 [pid 5690] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5690] setpgid(0, 0) = 0 [pid 5690] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 5690] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5690] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 5690] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5690] write(3, "1000", 4) = 4 [pid 5690] close(3) = 0 [pid 5690] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5690] write(1, "executing program\n", 18) = 18 executing program [pid 5690] mkdirat(AT_FDCWD, "./file0", 0601) = 0 [pid 5690] mkdirat(AT_FDCWD, "./bus", 000) = 0 [pid 5690] mount(NULL, "./bus", "overlay", MS_NOEXEC, "workdir=./bus,lowerdir=./cgroup,upperdir=./file0,") = 0 [pid 5690] chdir("./bus") = 0 [pid 5690] mount(NULL, "./tracing", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 5690] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 3 [pid 5690] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 4 [pid 5690] close(3) = 0 [pid 5690] close(4) = 0 [pid 5690] close(5) = -1 EBADF (Bad file descriptor) [pid 5690] close(6) = -1 EBADF (Bad file descriptor) [pid 5690] close(7) = -1 EBADF (Bad file descriptor) [pid 5690] close(8) = -1 EBADF (Bad file descriptor) [pid 5690] close(9) = -1 EBADF (Bad file descriptor) [pid 5690] close(10) = -1 EBADF (Bad file descriptor) [pid 5690] close(11) = -1 EBADF (Bad file descriptor) [pid 5690] close(12) = -1 EBADF (Bad file descriptor) [pid 5690] close(13) = -1 EBADF (Bad file descriptor) [pid 5690] close(14) = -1 EBADF (Bad file descriptor) [pid 5690] close(15) = -1 EBADF (Bad file descriptor) [pid 5690] close(16) = -1 EBADF (Bad file descriptor) [pid 5690] close(17) = -1 EBADF (Bad file descriptor) [pid 5690] close(18) = -1 EBADF (Bad file descriptor) [pid 5690] close(19) = -1 EBADF (Bad file descriptor) [pid 5690] close(20) = -1 EBADF (Bad file descriptor) [pid 5690] close(21) = -1 EBADF (Bad file descriptor) [pid 5690] close(22) = -1 EBADF (Bad file descriptor) [pid 5690] close(23) = -1 EBADF (Bad file descriptor) [pid 5690] close(24) = -1 EBADF (Bad file descriptor) [pid 5690] close(25) = -1 EBADF (Bad file descriptor) [pid 5690] close(26) = -1 EBADF (Bad file descriptor) [pid 5690] close(27) = -1 EBADF (Bad file descriptor) [pid 5690] close(28) = -1 EBADF (Bad file descriptor) [pid 5690] close(29) = -1 EBADF (Bad file descriptor) [pid 5690] exit_group(0) = ? [pid 5690] +++ exited with 0 +++ [pid 5622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=60, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5622] restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 [pid 5622] umount2("./58", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./58", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5622] fstat(3, {st_mode=S_IFDIR|0700, st_size=160, ...}) = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 8 entries */, 32768) = 232 [pid 5622] umount2("./58/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5622] umount2("./58/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./58/bus", {st_mode=S_IFDIR|000, st_size=80, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./58/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./58/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|000, st_size=80, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 4 entries */, 32768) = 104 [pid 5622] umount2("./58/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./58/bus/index", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./58/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./58/bus/index", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./58/bus/index") = 0 [pid 5622] umount2("./58/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./58/bus/work", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./58/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./58/bus/work", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./58/bus/work") = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./58/bus") = 0 [pid 5622] umount2("./58/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./58/file0", {st_mode=S_IFDIR|0600, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./58/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./58/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|0600, st_size=40, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./58/file0") = 0 [pid 5622] umount2("./58/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./58/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./58/binderfs") = 0 [pid 5622] umount2("./58/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./58/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./58/cgroup.net") = 0 [pid 5622] umount2("./58/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./58/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./58/cgroup.cpu") = 0 [pid 5622] umount2("./58/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./58/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./58/cgroup") = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 0 entries */, 32768) = 0 [pid 5622] close(3) = 0 [pid 5622] rmdir("./58") = 0 [pid 5622] mkdir("./59", 0777) = 0 [pid 5622] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556a0c16d0) = 61 ci-upstream-linux-next-kasan-gce-root/strace-static-x86_64: Process 5691 attached [pid 5622] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5691] set_robust_list(0x55556a0c16e0, 24) = 0 [pid 5691] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5691] chdir("./59") = 0 [pid 5691] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5691] setpgid(0, 0) = 0 [pid 5691] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 5691] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5691] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 5691] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5691] write(3, "1000", 4) = 4 [pid 5691] close(3) = 0 [pid 5691] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5691] write(1, "executing program\n", 18) = 18 [pid 5691] mkdirat(AT_FDCWD, "./file0", 0601) = 0 [pid 5691] mkdirat(AT_FDCWD, "./bus", 000) = 0 [pid 5691] mount(NULL, "./bus", "overlay", MS_NOEXEC, "workdir=./bus,lowerdir=./cgroup,upperdir=./file0,") = 0 [pid 5691] chdir("./bus") = 0 [pid 5691] mount(NULL, "./tracing", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 5691] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 3 [pid 5691] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 4 [pid 5691] close(3) = 0 [pid 5691] close(4) = 0 [pid 5691] close(5) = -1 EBADF (Bad file descriptor) [pid 5691] close(6) = -1 EBADF (Bad file descriptor) [pid 5691] close(7) = -1 EBADF (Bad file descriptor) [pid 5691] close(8) = -1 EBADF (Bad file descriptor) [pid 5691] close(9) = -1 EBADF (Bad file descriptor) [pid 5691] close(10) = -1 EBADF (Bad file descriptor) [pid 5691] close(11) = -1 EBADF (Bad file descriptor) [pid 5691] close(12) = -1 EBADF (Bad file descriptor) [pid 5691] close(13) = -1 EBADF (Bad file descriptor) [pid 5691] close(14) = -1 EBADF (Bad file descriptor) [pid 5691] close(15) = -1 EBADF (Bad file descriptor) [pid 5691] close(16) = -1 EBADF (Bad file descriptor) [pid 5691] close(17) = -1 EBADF (Bad file descriptor) [pid 5691] close(18) = -1 EBADF (Bad file descriptor) [pid 5691] close(19) = -1 EBADF (Bad file descriptor) [pid 5691] close(20) = -1 EBADF (Bad file descriptor) [pid 5691] close(21) = -1 EBADF (Bad file descriptor) [pid 5691] close(22) = -1 EBADF (Bad file descriptor) [pid 5691] close(23) = -1 EBADF (Bad file descriptor) [pid 5691] close(24) = -1 EBADF (Bad file descriptor) [pid 5691] close(25) = -1 EBADF (Bad file descriptor) [pid 5691] close(26) = -1 EBADF (Bad file descriptor) [pid 5691] close(27) = -1 EBADF (Bad file descriptor) [pid 5691] close(28) = -1 EBADF (Bad file descriptor) [pid 5691] close(29) = -1 EBADF (Bad file descriptor) [pid 5691] exit_group(0) = ? [pid 5691] +++ exited with 0 +++ [pid 5622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=61, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5622] restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 [pid 5622] umount2("./59", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./59", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5622] fstat(3, {st_mode=S_IFDIR|0700, st_size=160, ...}) = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 8 entries */, 32768) = 232 [pid 5622] umount2("./59/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5622] umount2("./59/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./59/bus", {st_mode=S_IFDIR|000, st_size=80, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./59/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./59/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|000, st_size=80, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 4 entries */, 32768) = 104 [pid 5622] umount2("./59/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./59/bus/index", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./59/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./59/bus/index", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./59/bus/index") = 0 [pid 5622] umount2("./59/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./59/bus/work", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./59/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./59/bus/work", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./59/bus/work") = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./59/bus") = 0 [pid 5622] umount2("./59/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./59/file0", {st_mode=S_IFDIR|0600, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./59/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./59/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|0600, st_size=40, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./59/file0") = 0 [pid 5622] umount2("./59/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./59/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./59/binderfs") = 0 [pid 5622] umount2("./59/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./59/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./59/cgroup.net") = 0 [pid 5622] umount2("./59/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./59/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./59/cgroup.cpu") = 0 [pid 5622] umount2("./59/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./59/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./59/cgroup") = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 0 entries */, 32768) = 0 [pid 5622] close(3) = 0 [pid 5622] rmdir("./59") = 0 [pid 5622] mkdir("./60", 0777) = 0 [pid 5622] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-linux-next-kasan-gce-root/strace-static-x86_64: Process 5692 attached , child_tidptr=0x55556a0c16d0) = 62 [pid 5622] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5692] set_robust_list(0x55556a0c16e0, 24) = 0 [pid 5692] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5692] chdir("./60") = 0 [pid 5692] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5692] setpgid(0, 0) = 0 [pid 5692] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 5692] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5692] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 5692] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5692] write(3, "1000", 4) = 4 [pid 5692] close(3) = 0 [pid 5692] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5692] write(1, "executing program\n", 18) = 18 [pid 5692] mkdirat(AT_FDCWD, "./file0", 0601) = 0 [pid 5692] mkdirat(AT_FDCWD, "./bus", 000) = 0 [pid 5692] mount(NULL, "./bus", "overlay", MS_NOEXEC, "workdir=./bus,lowerdir=./cgroup,upperdir=./file0,") = 0 [pid 5692] chdir("./bus") = 0 [pid 5692] mount(NULL, "./tracing", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 5692] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 3 [pid 5692] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 4 [pid 5692] close(3) = 0 [pid 5692] close(4) = 0 [pid 5692] close(5) = -1 EBADF (Bad file descriptor) [pid 5692] close(6) = -1 EBADF (Bad file descriptor) [pid 5692] close(7) = -1 EBADF (Bad file descriptor) [pid 5692] close(8) = -1 EBADF (Bad file descriptor) [pid 5692] close(9) = -1 EBADF (Bad file descriptor) [pid 5692] close(10) = -1 EBADF (Bad file descriptor) [pid 5692] close(11) = -1 EBADF (Bad file descriptor) [pid 5692] close(12) = -1 EBADF (Bad file descriptor) [pid 5692] close(13) = -1 EBADF (Bad file descriptor) [pid 5692] close(14) = -1 EBADF (Bad file descriptor) [pid 5692] close(15) = -1 EBADF (Bad file descriptor) [pid 5692] close(16) = -1 EBADF (Bad file descriptor) [pid 5692] close(17) = -1 EBADF (Bad file descriptor) [pid 5692] close(18) = -1 EBADF (Bad file descriptor) [pid 5692] close(19) = -1 EBADF (Bad file descriptor) [pid 5692] close(20) = -1 EBADF (Bad file descriptor) [pid 5692] close(21) = -1 EBADF (Bad file descriptor) [pid 5692] close(22) = -1 EBADF (Bad file descriptor) [pid 5692] close(23) = -1 EBADF (Bad file descriptor) [pid 5692] close(24) = -1 EBADF (Bad file descriptor) [pid 5692] close(25) = -1 EBADF (Bad file descriptor) [pid 5692] close(26) = -1 EBADF (Bad file descriptor) [pid 5692] close(27) = -1 EBADF (Bad file descriptor) [pid 5692] close(28) = -1 EBADF (Bad file descriptor) [pid 5692] close(29) = -1 EBADF (Bad file descriptor) [pid 5692] exit_group(0) = ? [pid 5692] +++ exited with 0 +++ [pid 5622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=62, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5622] restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 [pid 5622] umount2("./60", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./60", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5622] fstat(3, {st_mode=S_IFDIR|0700, st_size=160, ...}) = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 8 entries */, 32768) = 232 [pid 5622] umount2("./60/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5622] umount2("./60/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./60/bus", {st_mode=S_IFDIR|000, st_size=80, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./60/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./60/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|000, st_size=80, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 4 entries */, 32768) = 104 [pid 5622] umount2("./60/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./60/bus/index", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./60/bus/index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./60/bus/index", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./60/bus/index") = 0 [pid 5622] umount2("./60/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./60/bus/work", {st_mode=S_IFDIR|000, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./60/bus/work", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./60/bus/work", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 [pid 5622] fstat(5, {st_mode=S_IFDIR|000, st_size=40, ...}) = 0 [pid 5622] getdents64(5, 0x55556a0d2830 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(5, 0x55556a0d2830 /* 0 entries */, 32768) = 0 [pid 5622] close(5) = 0 [pid 5622] rmdir("./60/bus/work") = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./60/bus") = 0 [pid 5622] umount2("./60/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./60/file0", {st_mode=S_IFDIR|0600, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] umount2("./60/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] openat(AT_FDCWD, "./60/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5622] fstat(4, {st_mode=S_IFDIR|0600, st_size=40, ...}) = 0 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 2 entries */, 32768) = 48 [pid 5622] getdents64(4, 0x55556a0ca7f0 /* 0 entries */, 32768) = 0 [pid 5622] close(4) = 0 [pid 5622] rmdir("./60/file0") = 0 [pid 5622] umount2("./60/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./60/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./60/binderfs") = 0 [pid 5622] umount2("./60/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./60/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./60/cgroup.net") = 0 [pid 5622] umount2("./60/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./60/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./60/cgroup.cpu") = 0 [pid 5622] umount2("./60/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5622] newfstatat(AT_FDCWD, "./60/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5622] unlink("./60/cgroup") = 0 [pid 5622] getdents64(3, 0x55556a0c27b0 /* 0 entries */, 32768) = 0 [pid 5622] close(3) = 0 [pid 5622] rmdir("./60") = 0 [pid 5622] mkdir("./61", 0777) = 0 [pid 5622] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-linux-next-kasan-gce-root/strace-static-x86_64: Process 5693 attached , child_tidptr=0x55556a0c16d0) = 63 [pid 5622] rt_sigprocmask(SIG_SETMASK, [] [pid 5693] set_robust_list(0x55556a0c16e0, 24) = 0 [pid 5622] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5693] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5693] chdir("./61") = 0 [pid 5693] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5693] setpgid(0, 0) = 0 [pid 5693] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 5693] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5693] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 5693] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5693] write(3, "1000", 4) = 4 [pid 5693] close(3) = 0 [pid 5693] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5693] write(1, "executing program\n", 18) = 18 executing program [pid 5693] mkdirat(AT_FDCWD, "./file0", 0601) = 0 [pid 5693] mkdirat(AT_FDCWD, "./bus", 000) = 0 [pid 5693] mount(NULL, "./bus", "overlay", MS_NOEXEC, "workdir=./bus,lowerdir=./cgroup,upperdir=./file0,") = 0 [pid 5693] chdir("./bus") = 0 [pid 5693] mount(NULL, "./tracing", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 5693] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 3 [pid 5693] socket(AF_INET6, SOCK_STREAM, IPPROTO_MPTCP) = 4 [pid 5693] close(3) = 0 [pid 5693] close(4) = 0