// https://syzkaller.appspot.com/bug?id=779a64ccaefd969d5d9bc72a7c4fe39598d53884
// autogenerated by syzkaller (https://github.com/google/syzkaller)
#define _GNU_SOURCE
#include <arpa/inet.h>
#include <endian.h>
#include <errno.h>
#include <fcntl.h>
#include <net/if.h>
#include <net/if_arp.h>
#include <netinet/in.h>
#include <pthread.h>
#include <sched.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/ioctl.h>
#include <sys/mount.h>
#include <sys/prctl.h>
#include <sys/resource.h>
#include <sys/socket.h>
#include <sys/stat.h>
#include <sys/syscall.h>
#include <sys/time.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <time.h>
#include <unistd.h>
#include <linux/capability.h>
#include <linux/futex.h>
#include <linux/genetlink.h>
#include <linux/if_addr.h>
#include <linux/if_ether.h>
#include <linux/if_link.h>
#include <linux/if_tun.h>
#include <linux/in6.h>
#include <linux/ip.h>
#include <linux/neighbour.h>
#include <linux/net.h>
#include <linux/netlink.h>
#include <linux/rtnetlink.h>
#include <linux/tcp.h>
#include <linux/veth.h>
static void sleep_ms(uint64_t ms)
{
usleep(ms * 1000);
}
static uint64_t current_time_ms(void)
{
struct timespec ts;
if (clock_gettime(CLOCK_MONOTONIC, &ts))
exit(1);
return (uint64_t)ts.tv_sec * 1000 + (uint64_t)ts.tv_nsec / 1000000;
}
static void thread_start(void* (*fn)(void*), void* arg)
{
pthread_t th;
pthread_attr_t attr;
pthread_attr_init(&attr);
pthread_attr_setstacksize(&attr, 128 << 10);
int i = 0;
for (; i < 100; i++) {
if (pthread_create(&th, &attr, fn, arg) == 0) {
pthread_attr_destroy(&attr);
return;
}
if (errno == EAGAIN) {
usleep(50);
continue;
}
break;
}
exit(1);
}
#define BITMASK(bf_off, bf_len) (((1ull << (bf_len)) - 1) << (bf_off))
#define STORE_BY_BITMASK(type, htobe, addr, val, bf_off, bf_len) \
*(type*)(addr) = \
htobe((htobe(*(type*)(addr)) & ~BITMASK((bf_off), (bf_len))) | \
(((type)(val) << (bf_off)) & BITMASK((bf_off), (bf_len))))
typedef struct {
int state;
} event_t;
static void event_init(event_t* ev)
{
ev->state = 0;
}
static void event_reset(event_t* ev)
{
ev->state = 0;
}
static void event_set(event_t* ev)
{
if (ev->state)
exit(1);
__atomic_store_n(&ev->state, 1, __ATOMIC_RELEASE);
syscall(SYS_futex, &ev->state, FUTEX_WAKE | FUTEX_PRIVATE_FLAG, 1000000);
}
static void event_wait(event_t* ev)
{
while (!__atomic_load_n(&ev->state, __ATOMIC_ACQUIRE))
syscall(SYS_futex, &ev->state, FUTEX_WAIT | FUTEX_PRIVATE_FLAG, 0, 0);
}
static int event_isset(event_t* ev)
{
return __atomic_load_n(&ev->state, __ATOMIC_ACQUIRE);
}
static int event_timedwait(event_t* ev, uint64_t timeout)
{
uint64_t start = current_time_ms();
uint64_t now = start;
for (;;) {
uint64_t remain = timeout - (now - start);
struct timespec ts;
ts.tv_sec = remain / 1000;
ts.tv_nsec = (remain % 1000) * 1000 * 1000;
syscall(SYS_futex, &ev->state, FUTEX_WAIT | FUTEX_PRIVATE_FLAG, 0, &ts);
if (__atomic_load_n(&ev->state, __ATOMIC_ACQUIRE))
return 1;
now = current_time_ms();
if (now - start > timeout)
return 0;
}
}
static bool write_file(const char* file, const char* what, ...)
{
char buf[1024];
va_list args;
va_start(args, what);
vsnprintf(buf, sizeof(buf), what, args);
va_end(args);
buf[sizeof(buf) - 1] = 0;
int len = strlen(buf);
int fd = open(file, O_WRONLY | O_CLOEXEC);
if (fd == -1)
return false;
if (write(fd, buf, len) != len) {
int err = errno;
close(fd);
errno = err;
return false;
}
close(fd);
return true;
}
struct nlmsg {
char* pos;
int nesting;
struct nlattr* nested[8];
char buf[4096];
};
static void netlink_init(struct nlmsg* nlmsg, int typ, int flags,
const void* data, int size)
{
memset(nlmsg, 0, sizeof(*nlmsg));
struct nlmsghdr* hdr = (struct nlmsghdr*)nlmsg->buf;
hdr->nlmsg_type = typ;
hdr->nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK | flags;
memcpy(hdr + 1, data, size);
nlmsg->pos = (char*)(hdr + 1) + NLMSG_ALIGN(size);
}
static void netlink_attr(struct nlmsg* nlmsg, int typ, const void* data,
int size)
{
struct nlattr* attr = (struct nlattr*)nlmsg->pos;
attr->nla_len = sizeof(*attr) + size;
attr->nla_type = typ;
if (size > 0)
memcpy(attr + 1, data, size);
nlmsg->pos += NLMSG_ALIGN(attr->nla_len);
}
static int netlink_send_ext(struct nlmsg* nlmsg, int sock, uint16_t reply_type,
int* reply_len, bool dofail)
{
if (nlmsg->pos > nlmsg->buf + sizeof(nlmsg->buf) || nlmsg->nesting)
exit(1);
struct nlmsghdr* hdr = (struct nlmsghdr*)nlmsg->buf;
hdr->nlmsg_len = nlmsg->pos - nlmsg->buf;
struct sockaddr_nl addr;
memset(&addr, 0, sizeof(addr));
addr.nl_family = AF_NETLINK;
ssize_t n = sendto(sock, nlmsg->buf, hdr->nlmsg_len, 0,
(struct sockaddr*)&addr, sizeof(addr));
if (n != (ssize_t)hdr->nlmsg_len) {
if (dofail)
exit(1);
return -1;
}
n = recv(sock, nlmsg->buf, sizeof(nlmsg->buf), 0);
if (reply_len)
*reply_len = 0;
if (n < 0) {
if (dofail)
exit(1);
return -1;
}
if (n < (ssize_t)sizeof(struct nlmsghdr)) {
errno = EINVAL;
if (dofail)
exit(1);
return -1;
}
if (hdr->nlmsg_type == NLMSG_DONE)
return 0;
if (reply_len && hdr->nlmsg_type == reply_type) {
*reply_len = n;
return 0;
}
if (n < (ssize_t)(sizeof(struct nlmsghdr) + sizeof(struct nlmsgerr))) {
errno = EINVAL;
if (dofail)
exit(1);
return -1;
}
if (hdr->nlmsg_type != NLMSG_ERROR) {
errno = EINVAL;
if (dofail)
exit(1);
return -1;
}
errno = -((struct nlmsgerr*)(hdr + 1))->error;
return -errno;
}
static int netlink_send(struct nlmsg* nlmsg, int sock)
{
return netlink_send_ext(nlmsg, sock, 0, NULL, true);
}
static int netlink_query_family_id(struct nlmsg* nlmsg, int sock,
const char* family_name, bool dofail)
{
struct genlmsghdr genlhdr;
memset(&genlhdr, 0, sizeof(genlhdr));
genlhdr.cmd = CTRL_CMD_GETFAMILY;
netlink_init(nlmsg, GENL_ID_CTRL, 0, &genlhdr, sizeof(genlhdr));
netlink_attr(nlmsg, CTRL_ATTR_FAMILY_NAME, family_name,
strnlen(family_name, GENL_NAMSIZ - 1) + 1);
int n = 0;
int err = netlink_send_ext(nlmsg, sock, GENL_ID_CTRL, &n, dofail);
if (err < 0) {
return -1;
}
uint16_t id = 0;
struct nlattr* attr = (struct nlattr*)(nlmsg->buf + NLMSG_HDRLEN +
NLMSG_ALIGN(sizeof(genlhdr)));
for (; (char*)attr < nlmsg->buf + n;
attr = (struct nlattr*)((char*)attr + NLMSG_ALIGN(attr->nla_len))) {
if (attr->nla_type == CTRL_ATTR_FAMILY_ID) {
id = *(uint16_t*)(attr + 1);
break;
}
}
if (!id) {
errno = EINVAL;
return -1;
}
recv(sock, nlmsg->buf, sizeof(nlmsg->buf), 0);
return id;
}
static void netlink_device_change(struct nlmsg* nlmsg, int sock,
const char* name, bool up, const char* master,
const void* mac, int macsize,
const char* new_name)
{
struct ifinfomsg hdr;
memset(&hdr, 0, sizeof(hdr));
if (up)
hdr.ifi_flags = hdr.ifi_change = IFF_UP;
hdr.ifi_index = if_nametoindex(name);
netlink_init(nlmsg, RTM_NEWLINK, 0, &hdr, sizeof(hdr));
if (new_name)
netlink_attr(nlmsg, IFLA_IFNAME, new_name, strlen(new_name));
if (master) {
int ifindex = if_nametoindex(master);
netlink_attr(nlmsg, IFLA_MASTER, &ifindex, sizeof(ifindex));
}
if (macsize)
netlink_attr(nlmsg, IFLA_ADDRESS, mac, macsize);
int err = netlink_send(nlmsg, sock);
if (err < 0) {
}
}
static int netlink_add_addr(struct nlmsg* nlmsg, int sock, const char* dev,
const void* addr, int addrsize)
{
struct ifaddrmsg hdr;
memset(&hdr, 0, sizeof(hdr));
hdr.ifa_family = addrsize == 4 ? AF_INET : AF_INET6;
hdr.ifa_prefixlen = addrsize == 4 ? 24 : 120;
hdr.ifa_scope = RT_SCOPE_UNIVERSE;
hdr.ifa_index = if_nametoindex(dev);
netlink_init(nlmsg, RTM_NEWADDR, NLM_F_CREATE | NLM_F_REPLACE, &hdr,
sizeof(hdr));
netlink_attr(nlmsg, IFA_LOCAL, addr, addrsize);
netlink_attr(nlmsg, IFA_ADDRESS, addr, addrsize);
return netlink_send(nlmsg, sock);
}
static void netlink_add_addr4(struct nlmsg* nlmsg, int sock, const char* dev,
const char* addr)
{
struct in_addr in_addr;
inet_pton(AF_INET, addr, &in_addr);
int err = netlink_add_addr(nlmsg, sock, dev, &in_addr, sizeof(in_addr));
if (err < 0) {
}
}
static void netlink_add_addr6(struct nlmsg* nlmsg, int sock, const char* dev,
const char* addr)
{
struct in6_addr in6_addr;
inet_pton(AF_INET6, addr, &in6_addr);
int err = netlink_add_addr(nlmsg, sock, dev, &in6_addr, sizeof(in6_addr));
if (err < 0) {
}
}
static void netlink_add_neigh(struct nlmsg* nlmsg, int sock, const char* name,
const void* addr, int addrsize, const void* mac,
int macsize)
{
struct ndmsg hdr;
memset(&hdr, 0, sizeof(hdr));
hdr.ndm_family = addrsize == 4 ? AF_INET : AF_INET6;
hdr.ndm_ifindex = if_nametoindex(name);
hdr.ndm_state = NUD_PERMANENT;
netlink_init(nlmsg, RTM_NEWNEIGH, NLM_F_EXCL | NLM_F_CREATE, &hdr,
sizeof(hdr));
netlink_attr(nlmsg, NDA_DST, addr, addrsize);
netlink_attr(nlmsg, NDA_LLADDR, mac, macsize);
int err = netlink_send(nlmsg, sock);
if (err < 0) {
}
}
static struct nlmsg nlmsg;
static int tunfd = -1;
#define TUN_IFACE "syz_tun"
#define LOCAL_MAC 0xaaaaaaaaaaaa
#define REMOTE_MAC 0xaaaaaaaaaabb
#define LOCAL_IPV4 "172.20.20.170"
#define REMOTE_IPV4 "172.20.20.187"
#define LOCAL_IPV6 "fe80::aa"
#define REMOTE_IPV6 "fe80::bb"
#define IFF_NAPI 0x0010
static void initialize_tun(void)
{
tunfd = open("/dev/net/tun", O_RDWR | O_NONBLOCK);
if (tunfd == -1) {
printf("tun: can't open /dev/net/tun: please enable CONFIG_TUN=y\n");
printf("otherwise fuzzing or reproducing might not work as intended\n");
return;
}
const int kTunFd = 240;
if (dup2(tunfd, kTunFd) < 0)
exit(1);
close(tunfd);
tunfd = kTunFd;
struct ifreq ifr;
memset(&ifr, 0, sizeof(ifr));
strncpy(ifr.ifr_name, TUN_IFACE, IFNAMSIZ);
ifr.ifr_flags = IFF_TAP | IFF_NO_PI;
if (ioctl(tunfd, TUNSETIFF, (void*)&ifr) < 0) {
exit(1);
}
char sysctl[64];
sprintf(sysctl, "/proc/sys/net/ipv6/conf/%s/accept_dad", TUN_IFACE);
write_file(sysctl, "0");
sprintf(sysctl, "/proc/sys/net/ipv6/conf/%s/router_solicitations", TUN_IFACE);
write_file(sysctl, "0");
int sock = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
if (sock == -1)
exit(1);
netlink_add_addr4(&nlmsg, sock, TUN_IFACE, LOCAL_IPV4);
netlink_add_addr6(&nlmsg, sock, TUN_IFACE, LOCAL_IPV6);
uint64_t macaddr = REMOTE_MAC;
struct in_addr in_addr;
inet_pton(AF_INET, REMOTE_IPV4, &in_addr);
netlink_add_neigh(&nlmsg, sock, TUN_IFACE, &in_addr, sizeof(in_addr),
&macaddr, ETH_ALEN);
struct in6_addr in6_addr;
inet_pton(AF_INET6, REMOTE_IPV6, &in6_addr);
netlink_add_neigh(&nlmsg, sock, TUN_IFACE, &in6_addr, sizeof(in6_addr),
&macaddr, ETH_ALEN);
macaddr = LOCAL_MAC;
netlink_device_change(&nlmsg, sock, TUN_IFACE, true, 0, &macaddr, ETH_ALEN,
NULL);
close(sock);
}
static void setup_common()
{
if (mount(0, "/sys/fs/fuse/connections", "fusectl", 0, 0)) {
}
}
static void loop();
static void sandbox_common()
{
prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0);
setsid();
struct rlimit rlim;
rlim.rlim_cur = rlim.rlim_max = (200 << 20);
setrlimit(RLIMIT_AS, &rlim);
rlim.rlim_cur = rlim.rlim_max = 32 << 20;
setrlimit(RLIMIT_MEMLOCK, &rlim);
rlim.rlim_cur = rlim.rlim_max = 136 << 20;
setrlimit(RLIMIT_FSIZE, &rlim);
rlim.rlim_cur = rlim.rlim_max = 1 << 20;
setrlimit(RLIMIT_STACK, &rlim);
rlim.rlim_cur = rlim.rlim_max = 0;
setrlimit(RLIMIT_CORE, &rlim);
rlim.rlim_cur = rlim.rlim_max = 256;
setrlimit(RLIMIT_NOFILE, &rlim);
if (unshare(CLONE_NEWNS)) {
}
if (mount(NULL, "/", NULL, MS_REC | MS_PRIVATE, NULL)) {
}
if (unshare(CLONE_NEWIPC)) {
}
if (unshare(0x02000000)) {
}
if (unshare(CLONE_NEWUTS)) {
}
if (unshare(CLONE_SYSVSEM)) {
}
typedef struct {
const char* name;
const char* value;
} sysctl_t;
static const sysctl_t sysctls[] = {
{"/proc/sys/kernel/shmmax", "16777216"},
{"/proc/sys/kernel/shmall", "536870912"},
{"/proc/sys/kernel/shmmni", "1024"},
{"/proc/sys/kernel/msgmax", "8192"},
{"/proc/sys/kernel/msgmni", "1024"},
{"/proc/sys/kernel/msgmnb", "1024"},
{"/proc/sys/kernel/sem", "1024 1048576 500 1024"},
};
unsigned i;
for (i = 0; i < sizeof(sysctls) / sizeof(sysctls[0]); i++)
write_file(sysctls[i].name, sysctls[i].value);
}
static int wait_for_loop(int pid)
{
if (pid < 0)
exit(1);
int status = 0;
while (waitpid(-1, &status, __WALL) != pid) {
}
return WEXITSTATUS(status);
}
static void drop_caps(void)
{
struct __user_cap_header_struct cap_hdr = {};
struct __user_cap_data_struct cap_data[2] = {};
cap_hdr.version = _LINUX_CAPABILITY_VERSION_3;
cap_hdr.pid = getpid();
if (syscall(SYS_capget, &cap_hdr, &cap_data))
exit(1);
const int drop = (1 << CAP_SYS_PTRACE) | (1 << CAP_SYS_NICE);
cap_data[0].effective &= ~drop;
cap_data[0].permitted &= ~drop;
cap_data[0].inheritable &= ~drop;
if (syscall(SYS_capset, &cap_hdr, &cap_data))
exit(1);
}
static int do_sandbox_none(void)
{
if (unshare(CLONE_NEWPID)) {
}
int pid = fork();
if (pid != 0)
return wait_for_loop(pid);
setup_common();
sandbox_common();
drop_caps();
if (unshare(CLONE_NEWNET)) {
}
initialize_tun();
loop();
exit(1);
}
struct thread_t {
int created, call;
event_t ready, done;
};
static struct thread_t threads[16];
static void execute_call(int call);
static int running;
static void* thr(void* arg)
{
struct thread_t* th = (struct thread_t*)arg;
for (;;) {
event_wait(&th->ready);
event_reset(&th->ready);
execute_call(th->call);
__atomic_fetch_sub(&running, 1, __ATOMIC_RELAXED);
event_set(&th->done);
}
return 0;
}
static void loop(void)
{
int i, call, thread;
int collide = 0;
again:
for (call = 0; call < 7; call++) {
for (thread = 0; thread < (int)(sizeof(threads) / sizeof(threads[0]));
thread++) {
struct thread_t* th = &threads[thread];
if (!th->created) {
th->created = 1;
event_init(&th->ready);
event_init(&th->done);
event_set(&th->done);
thread_start(thr, th);
}
if (!event_isset(&th->done))
continue;
event_reset(&th->done);
th->call = call;
__atomic_fetch_add(&running, 1, __ATOMIC_RELAXED);
event_set(&th->ready);
if (collide && (call % 2) == 0)
break;
event_timedwait(&th->done, 50);
break;
}
}
for (i = 0; i < 100 && __atomic_load_n(&running, __ATOMIC_RELAXED); i++)
sleep_ms(1);
if (!collide) {
collide = 1;
goto again;
}
}
uint64_t r[2] = {0xffffffffffffffff, 0xffffffffffffffff};
void execute_call(int call)
{
intptr_t res = 0;
switch (call) {
case 0:
memcpy((void*)0x20000000, "./file0\000", 8);
syscall(__NR_mkdir, 0x20000000ul, 0ul);
break;
case 1:
memcpy((void*)0x20000100, "./file0\000", 8);
syscall(__NR_mount, 0x20000000ul, 0x20000100ul, 0ul, 0x2001001ul, 0ul);
break;
case 2:
memcpy((void*)0x20000040, "./file0\000", 8);
memcpy((void*)0x20000080, "./file0\000", 8);
syscall(__NR_pivot_root, 0x20000040ul, 0x20000080ul);
break;
case 3:
res = syscall(__NR_socket, 0xaul, 1ul, 0);
if (res != -1)
r[0] = res;
break;
case 4:
memcpy((void*)0x20000980,
"filter\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"
"\000\000\000\000\000\000\000\000\000\000\000",
32);
*(uint32_t*)0x200009a0 = 0xe;
*(uint32_t*)0x200009a4 = 4;
*(uint32_t*)0x200009a8 = 0x390;
*(uint32_t*)0x200009ac = 0xd0;
*(uint32_t*)0x200009b0 = 0;
*(uint32_t*)0x200009b4 = 0xd0;
*(uint32_t*)0x200009b8 = 0;
*(uint32_t*)0x200009bc = 0xd0;
*(uint32_t*)0x200009c0 = 0x2c0;
*(uint32_t*)0x200009c4 = 0x2c0;
*(uint32_t*)0x200009c8 = 0x2c0;
*(uint32_t*)0x200009cc = 0x2c0;
*(uint32_t*)0x200009d0 = 0x2c0;
*(uint32_t*)0x200009d4 = 4;
*(uint64_t*)0x200009d8 = 0;
*(uint8_t*)0x200009e0 = 0;
*(uint8_t*)0x200009e1 = 0;
*(uint8_t*)0x200009e2 = 0;
*(uint8_t*)0x200009e3 = 0;
*(uint8_t*)0x200009e4 = 0;
*(uint8_t*)0x200009e5 = 0;
*(uint8_t*)0x200009e6 = 0;
*(uint8_t*)0x200009e7 = 0;
*(uint8_t*)0x200009e8 = 0;
*(uint8_t*)0x200009e9 = 0;
*(uint8_t*)0x200009ea = 0;
*(uint8_t*)0x200009eb = 0;
*(uint8_t*)0x200009ec = 0;
*(uint8_t*)0x200009ed = 0;
*(uint8_t*)0x200009ee = 0;
*(uint8_t*)0x200009ef = 0;
*(uint8_t*)0x200009f0 = 0;
*(uint8_t*)0x200009f1 = 0;
*(uint8_t*)0x200009f2 = 0;
*(uint8_t*)0x200009f3 = 0;
*(uint8_t*)0x200009f4 = 0;
*(uint8_t*)0x200009f5 = 0;
*(uint8_t*)0x200009f6 = 0;
*(uint8_t*)0x200009f7 = 0;
*(uint8_t*)0x200009f8 = 0;
*(uint8_t*)0x200009f9 = 0;
*(uint8_t*)0x200009fa = 0;
*(uint8_t*)0x200009fb = 0;
*(uint8_t*)0x200009fc = 0;
*(uint8_t*)0x200009fd = 0;
*(uint8_t*)0x200009fe = 0;
*(uint8_t*)0x200009ff = 0;
*(uint8_t*)0x20000a00 = 0;
*(uint8_t*)0x20000a01 = 0;
*(uint8_t*)0x20000a02 = 0;
*(uint8_t*)0x20000a03 = 0;
*(uint8_t*)0x20000a04 = 0;
*(uint8_t*)0x20000a05 = 0;
*(uint8_t*)0x20000a06 = 0;
*(uint8_t*)0x20000a07 = 0;
*(uint8_t*)0x20000a08 = 0;
*(uint8_t*)0x20000a09 = 0;
*(uint8_t*)0x20000a0a = 0;
*(uint8_t*)0x20000a0b = 0;
*(uint8_t*)0x20000a0c = 0;
*(uint8_t*)0x20000a0d = 0;
*(uint8_t*)0x20000a0e = 0;
*(uint8_t*)0x20000a0f = 0;
*(uint8_t*)0x20000a10 = 0;
*(uint8_t*)0x20000a11 = 0;
*(uint8_t*)0x20000a12 = 0;
*(uint8_t*)0x20000a13 = 0;
*(uint8_t*)0x20000a14 = 0;
*(uint8_t*)0x20000a15 = 0;
*(uint8_t*)0x20000a16 = 0;
*(uint8_t*)0x20000a17 = 0;
*(uint8_t*)0x20000a18 = 0;
*(uint8_t*)0x20000a19 = 0;
*(uint8_t*)0x20000a1a = 0;
*(uint8_t*)0x20000a1b = 0;
*(uint8_t*)0x20000a1c = 0;
*(uint8_t*)0x20000a1d = 0;
*(uint8_t*)0x20000a1e = 0;
*(uint8_t*)0x20000a1f = 0;
*(uint8_t*)0x20000a20 = 0;
*(uint8_t*)0x20000a21 = 0;
*(uint8_t*)0x20000a22 = 0;
*(uint8_t*)0x20000a23 = 0;
*(uint8_t*)0x20000a24 = 0;
*(uint8_t*)0x20000a25 = 0;
*(uint8_t*)0x20000a26 = 0;
*(uint8_t*)0x20000a27 = 0;
*(uint8_t*)0x20000a28 = 0;
*(uint8_t*)0x20000a29 = 0;
*(uint8_t*)0x20000a2a = 0;
*(uint8_t*)0x20000a2b = 0;
*(uint8_t*)0x20000a2c = 0;
*(uint8_t*)0x20000a2d = 0;
*(uint8_t*)0x20000a2e = 0;
*(uint8_t*)0x20000a2f = 0;
*(uint8_t*)0x20000a30 = 0;
*(uint8_t*)0x20000a31 = 0;
*(uint8_t*)0x20000a32 = 0;
*(uint8_t*)0x20000a33 = 0;
*(uint8_t*)0x20000a34 = 0;
*(uint8_t*)0x20000a35 = 0;
*(uint8_t*)0x20000a36 = 0;
*(uint8_t*)0x20000a37 = 0;
*(uint8_t*)0x20000a38 = 0;
*(uint8_t*)0x20000a39 = 0;
*(uint8_t*)0x20000a3a = 0;
*(uint8_t*)0x20000a3b = 0;
*(uint8_t*)0x20000a3c = 0;
*(uint8_t*)0x20000a3d = 0;
*(uint8_t*)0x20000a3e = 0;
*(uint8_t*)0x20000a3f = 0;
*(uint8_t*)0x20000a40 = 0;
*(uint8_t*)0x20000a41 = 0;
*(uint8_t*)0x20000a42 = 0;
*(uint8_t*)0x20000a43 = 0;
*(uint8_t*)0x20000a44 = 0;
*(uint8_t*)0x20000a45 = 0;
*(uint8_t*)0x20000a46 = 0;
*(uint8_t*)0x20000a47 = 0;
*(uint8_t*)0x20000a48 = 0;
*(uint8_t*)0x20000a49 = 0;
*(uint8_t*)0x20000a4a = 0;
*(uint8_t*)0x20000a4b = 0;
*(uint8_t*)0x20000a4c = 0;
*(uint8_t*)0x20000a4d = 0;
*(uint8_t*)0x20000a4e = 0;
*(uint8_t*)0x20000a4f = 0;
*(uint8_t*)0x20000a50 = 0;
*(uint8_t*)0x20000a51 = 0;
*(uint8_t*)0x20000a52 = 0;
*(uint8_t*)0x20000a53 = 0;
*(uint8_t*)0x20000a54 = 0;
*(uint8_t*)0x20000a55 = 0;
*(uint8_t*)0x20000a56 = 0;
*(uint8_t*)0x20000a57 = 0;
*(uint8_t*)0x20000a58 = 0;
*(uint8_t*)0x20000a59 = 0;
*(uint8_t*)0x20000a5a = 0;
*(uint8_t*)0x20000a5b = 0;
*(uint8_t*)0x20000a5c = 0;
*(uint8_t*)0x20000a5d = 0;
*(uint8_t*)0x20000a5e = 0;
*(uint8_t*)0x20000a5f = 0;
*(uint8_t*)0x20000a60 = 0;
*(uint8_t*)0x20000a61 = 0;
*(uint8_t*)0x20000a62 = 0;
*(uint8_t*)0x20000a63 = 0;
*(uint8_t*)0x20000a64 = 0;
*(uint8_t*)0x20000a65 = 0;
*(uint8_t*)0x20000a66 = 0;
*(uint8_t*)0x20000a67 = 0;
*(uint32_t*)0x20000a68 = 0;
*(uint16_t*)0x20000a6c = 0xa8;
*(uint16_t*)0x20000a6e = 0xd0;
*(uint32_t*)0x20000a70 = 0;
*(uint64_t*)0x20000a78 = 0;
*(uint64_t*)0x20000a80 = 0;
*(uint16_t*)0x20000a88 = 0x28;
memcpy((void*)0x20000a8a,
"SET\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"
"\000\000\000\000\000\000\000\000\000\000",
29);
*(uint8_t*)0x20000aa7 = 1;
*(uint16_t*)0x20000aa8 = -1;
*(uint8_t*)0x20000aaa = 0;
*(uint8_t*)0x20000aab = 0;
*(uint16_t*)0x20000aac = -1;
*(uint8_t*)0x20000aae = 0;
*(uint8_t*)0x20000aaf = 0;
*(uint64_t*)0x20000ab0 = htobe64(0);
*(uint64_t*)0x20000ab8 = htobe64(1);
*(uint8_t*)0x20000ac0 = 0xfc;
*(uint8_t*)0x20000ac1 = 0;
*(uint8_t*)0x20000ac2 = 0;
*(uint8_t*)0x20000ac3 = 0;
*(uint8_t*)0x20000ac4 = 0;
*(uint8_t*)0x20000ac5 = 0;
*(uint8_t*)0x20000ac6 = 0;
*(uint8_t*)0x20000ac7 = 0;
*(uint8_t*)0x20000ac8 = 0;
*(uint8_t*)0x20000ac9 = 0;
*(uint8_t*)0x20000aca = 0;
*(uint8_t*)0x20000acb = 0;
*(uint8_t*)0x20000acc = 0;
*(uint8_t*)0x20000acd = 0;
*(uint8_t*)0x20000ace = 0;
*(uint8_t*)0x20000acf = 0;
*(uint32_t*)0x20000ad0 = htobe32(0);
*(uint32_t*)0x20000ad4 = htobe32(0);
*(uint32_t*)0x20000ad8 = htobe32(0);
*(uint32_t*)0x20000adc = htobe32(0);
*(uint32_t*)0x20000ae0 = htobe32(0);
*(uint32_t*)0x20000ae4 = htobe32(0);
*(uint32_t*)0x20000ae8 = htobe32(0);
*(uint32_t*)0x20000aec = htobe32(0);
memcpy((void*)0x20000af0, "veth1_to_bond\000\000\000", 16);
memcpy((void*)0x20000b00, "macsec0\000\000\000\000\000\000\000\000\000",
16);
*(uint8_t*)0x20000b10 = 0;
*(uint8_t*)0x20000b20 = 0;
*(uint16_t*)0x20000b30 = 0;
*(uint8_t*)0x20000b32 = 0;
*(uint8_t*)0x20000b33 = 0;
*(uint8_t*)0x20000b34 = 0;
*(uint32_t*)0x20000b38 = 0;
*(uint16_t*)0x20000b3c = 0xa8;
*(uint16_t*)0x20000b3e = 0xf0;
*(uint32_t*)0x20000b40 = 0;
*(uint64_t*)0x20000b48 = 0;
*(uint64_t*)0x20000b50 = 0;
*(uint16_t*)0x20000b58 = 0x48;
memcpy((void*)0x20000b5a,
"TEE\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"
"\000\000\000\000\000\000\000\000\000\000",
29);
*(uint8_t*)0x20000b77 = 1;
*(uint8_t*)0x20000b78 = -1;
*(uint8_t*)0x20000b79 = 2;
*(uint8_t*)0x20000b7a = 0;
*(uint8_t*)0x20000b7b = 0;
*(uint8_t*)0x20000b7c = 0;
*(uint8_t*)0x20000b7d = 0;
*(uint8_t*)0x20000b7e = 0;
*(uint8_t*)0x20000b7f = 0;
*(uint8_t*)0x20000b80 = 0;
*(uint8_t*)0x20000b81 = 0;
*(uint8_t*)0x20000b82 = 0;
*(uint8_t*)0x20000b83 = 0;
*(uint8_t*)0x20000b84 = 0;
*(uint8_t*)0x20000b85 = 0;
*(uint8_t*)0x20000b86 = 0;
*(uint8_t*)0x20000b87 = 1;
memcpy((void*)0x20000b88, "netdevsim0\000\000\000\000\000\000", 16);
*(uint64_t*)0x20000b98 = 0;
*(uint8_t*)0x20000ba0 = 0xfe;
*(uint8_t*)0x20000ba1 = 0x80;
*(uint8_t*)0x20000ba2 = 0;
*(uint8_t*)0x20000ba3 = 0;
*(uint8_t*)0x20000ba4 = 0;
*(uint8_t*)0x20000ba5 = 0;
*(uint8_t*)0x20000ba6 = 0;
*(uint8_t*)0x20000ba7 = 0;
*(uint8_t*)0x20000ba8 = 0;
*(uint8_t*)0x20000ba9 = 0;
*(uint8_t*)0x20000baa = 0;
*(uint8_t*)0x20000bab = 0;
*(uint8_t*)0x20000bac = 0;
*(uint8_t*)0x20000bad = 0;
*(uint8_t*)0x20000bae = 0;
*(uint8_t*)0x20000baf = 0xaa;
*(uint8_t*)0x20000bb0 = 0xfe;
*(uint8_t*)0x20000bb1 = 0x80;
*(uint8_t*)0x20000bb2 = 0;
*(uint8_t*)0x20000bb3 = 0;
*(uint8_t*)0x20000bb4 = 0;
*(uint8_t*)0x20000bb5 = 0;
*(uint8_t*)0x20000bb6 = 0;
*(uint8_t*)0x20000bb7 = 0;
*(uint8_t*)0x20000bb8 = 0;
*(uint8_t*)0x20000bb9 = 0;
*(uint8_t*)0x20000bba = 0;
*(uint8_t*)0x20000bbb = 0;
*(uint8_t*)0x20000bbc = 0;
*(uint8_t*)0x20000bbd = 0;
*(uint8_t*)0x20000bbe = 0;
*(uint8_t*)0x20000bbf = 0xaa;
*(uint32_t*)0x20000bc0 = htobe32(0);
*(uint32_t*)0x20000bc4 = htobe32(0);
*(uint32_t*)0x20000bc8 = htobe32(0);
*(uint32_t*)0x20000bcc = htobe32(0);
*(uint32_t*)0x20000bd0 = htobe32(0);
*(uint32_t*)0x20000bd4 = htobe32(0);
*(uint32_t*)0x20000bd8 = htobe32(0);
*(uint32_t*)0x20000bdc = htobe32(0);
memcpy((void*)0x20000be0,
"vlan1\000\000\000\000\000\000\000\000\000\000\000", 16);
memcpy((void*)0x20000bf0, "ipvlan0\000\000\000\000\000\000\000\000\000",
16);
*(uint8_t*)0x20000c00 = 0;
*(uint8_t*)0x20000c10 = 0;
*(uint16_t*)0x20000c20 = 0x11;
*(uint8_t*)0x20000c22 = 0;
*(uint8_t*)0x20000c23 = 0;
*(uint8_t*)0x20000c24 = 0;
*(uint32_t*)0x20000c28 = 0;
*(uint16_t*)0x20000c2c = 0xd8;
*(uint16_t*)0x20000c2e = 0x100;
*(uint32_t*)0x20000c30 = 0;
*(uint64_t*)0x20000c38 = 0;
*(uint64_t*)0x20000c40 = 0;
*(uint16_t*)0x20000c48 = 0x30;
memcpy((void*)0x20000c4a,
"l2tp\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"
"\000\000\000\000\000\000\000\000\000\000",
29);
*(uint8_t*)0x20000c67 = 0;
*(uint32_t*)0x20000c68 = 0;
*(uint32_t*)0x20000c6c = 0;
*(uint8_t*)0x20000c70 = 2;
*(uint8_t*)0x20000c71 = 0;
*(uint8_t*)0x20000c72 = 0xc;
*(uint16_t*)0x20000c78 = 0x28;
memcpy((void*)0x20000c7a,
"REJECT\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"
"\000\000\000\000\000\000\000\000",
29);
*(uint8_t*)0x20000c97 = 0;
*(uint32_t*)0x20000c98 = 0;
*(uint8_t*)0x20000ca0 = 0;
*(uint8_t*)0x20000ca1 = 0;
*(uint8_t*)0x20000ca2 = 0;
*(uint8_t*)0x20000ca3 = 0;
*(uint8_t*)0x20000ca4 = 0;
*(uint8_t*)0x20000ca5 = 0;
*(uint8_t*)0x20000ca6 = 0;
*(uint8_t*)0x20000ca7 = 0;
*(uint8_t*)0x20000ca8 = 0;
*(uint8_t*)0x20000ca9 = 0;
*(uint8_t*)0x20000caa = 0;
*(uint8_t*)0x20000cab = 0;
*(uint8_t*)0x20000cac = 0;
*(uint8_t*)0x20000cad = 0;
*(uint8_t*)0x20000cae = 0;
*(uint8_t*)0x20000caf = 0;
*(uint8_t*)0x20000cb0 = 0;
*(uint8_t*)0x20000cb1 = 0;
*(uint8_t*)0x20000cb2 = 0;
*(uint8_t*)0x20000cb3 = 0;
*(uint8_t*)0x20000cb4 = 0;
*(uint8_t*)0x20000cb5 = 0;
*(uint8_t*)0x20000cb6 = 0;
*(uint8_t*)0x20000cb7 = 0;
*(uint8_t*)0x20000cb8 = 0;
*(uint8_t*)0x20000cb9 = 0;
*(uint8_t*)0x20000cba = 0;
*(uint8_t*)0x20000cbb = 0;
*(uint8_t*)0x20000cbc = 0;
*(uint8_t*)0x20000cbd = 0;
*(uint8_t*)0x20000cbe = 0;
*(uint8_t*)0x20000cbf = 0;
*(uint8_t*)0x20000cc0 = 0;
*(uint8_t*)0x20000cc1 = 0;
*(uint8_t*)0x20000cc2 = 0;
*(uint8_t*)0x20000cc3 = 0;
*(uint8_t*)0x20000cc4 = 0;
*(uint8_t*)0x20000cc5 = 0;
*(uint8_t*)0x20000cc6 = 0;
*(uint8_t*)0x20000cc7 = 0;
*(uint8_t*)0x20000cc8 = 0;
*(uint8_t*)0x20000cc9 = 0;
*(uint8_t*)0x20000cca = 0;
*(uint8_t*)0x20000ccb = 0;
*(uint8_t*)0x20000ccc = 0;
*(uint8_t*)0x20000ccd = 0;
*(uint8_t*)0x20000cce = 0;
*(uint8_t*)0x20000ccf = 0;
*(uint8_t*)0x20000cd0 = 0;
*(uint8_t*)0x20000cd1 = 0;
*(uint8_t*)0x20000cd2 = 0;
*(uint8_t*)0x20000cd3 = 0;
*(uint8_t*)0x20000cd4 = 0;
*(uint8_t*)0x20000cd5 = 0;
*(uint8_t*)0x20000cd6 = 0;
*(uint8_t*)0x20000cd7 = 0;
*(uint8_t*)0x20000cd8 = 0;
*(uint8_t*)0x20000cd9 = 0;
*(uint8_t*)0x20000cda = 0;
*(uint8_t*)0x20000cdb = 0;
*(uint8_t*)0x20000cdc = 0;
*(uint8_t*)0x20000cdd = 0;
*(uint8_t*)0x20000cde = 0;
*(uint8_t*)0x20000cdf = 0;
*(uint8_t*)0x20000ce0 = 0;
*(uint8_t*)0x20000ce1 = 0;
*(uint8_t*)0x20000ce2 = 0;
*(uint8_t*)0x20000ce3 = 0;
*(uint8_t*)0x20000ce4 = 0;
*(uint8_t*)0x20000ce5 = 0;
*(uint8_t*)0x20000ce6 = 0;
*(uint8_t*)0x20000ce7 = 0;
*(uint8_t*)0x20000ce8 = 0;
*(uint8_t*)0x20000ce9 = 0;
*(uint8_t*)0x20000cea = 0;
*(uint8_t*)0x20000ceb = 0;
*(uint8_t*)0x20000cec = 0;
*(uint8_t*)0x20000ced = 0;
*(uint8_t*)0x20000cee = 0;
*(uint8_t*)0x20000cef = 0;
*(uint8_t*)0x20000cf0 = 0;
*(uint8_t*)0x20000cf1 = 0;
*(uint8_t*)0x20000cf2 = 0;
*(uint8_t*)0x20000cf3 = 0;
*(uint8_t*)0x20000cf4 = 0;
*(uint8_t*)0x20000cf5 = 0;
*(uint8_t*)0x20000cf6 = 0;
*(uint8_t*)0x20000cf7 = 0;
*(uint8_t*)0x20000cf8 = 0;
*(uint8_t*)0x20000cf9 = 0;
*(uint8_t*)0x20000cfa = 0;
*(uint8_t*)0x20000cfb = 0;
*(uint8_t*)0x20000cfc = 0;
*(uint8_t*)0x20000cfd = 0;
*(uint8_t*)0x20000cfe = 0;
*(uint8_t*)0x20000cff = 0;
*(uint8_t*)0x20000d00 = 0;
*(uint8_t*)0x20000d01 = 0;
*(uint8_t*)0x20000d02 = 0;
*(uint8_t*)0x20000d03 = 0;
*(uint8_t*)0x20000d04 = 0;
*(uint8_t*)0x20000d05 = 0;
*(uint8_t*)0x20000d06 = 0;
*(uint8_t*)0x20000d07 = 0;
*(uint8_t*)0x20000d08 = 0;
*(uint8_t*)0x20000d09 = 0;
*(uint8_t*)0x20000d0a = 0;
*(uint8_t*)0x20000d0b = 0;
*(uint8_t*)0x20000d0c = 0;
*(uint8_t*)0x20000d0d = 0;
*(uint8_t*)0x20000d0e = 0;
*(uint8_t*)0x20000d0f = 0;
*(uint8_t*)0x20000d10 = 0;
*(uint8_t*)0x20000d11 = 0;
*(uint8_t*)0x20000d12 = 0;
*(uint8_t*)0x20000d13 = 0;
*(uint8_t*)0x20000d14 = 0;
*(uint8_t*)0x20000d15 = 0;
*(uint8_t*)0x20000d16 = 0;
*(uint8_t*)0x20000d17 = 0;
*(uint8_t*)0x20000d18 = 0;
*(uint8_t*)0x20000d19 = 0;
*(uint8_t*)0x20000d1a = 0;
*(uint8_t*)0x20000d1b = 0;
*(uint8_t*)0x20000d1c = 0;
*(uint8_t*)0x20000d1d = 0;
*(uint8_t*)0x20000d1e = 0;
*(uint8_t*)0x20000d1f = 0;
*(uint8_t*)0x20000d20 = 0;
*(uint8_t*)0x20000d21 = 0;
*(uint8_t*)0x20000d22 = 0;
*(uint8_t*)0x20000d23 = 0;
*(uint8_t*)0x20000d24 = 0;
*(uint8_t*)0x20000d25 = 0;
*(uint8_t*)0x20000d26 = 0;
*(uint8_t*)0x20000d27 = 0;
*(uint32_t*)0x20000d28 = 0;
*(uint16_t*)0x20000d2c = 0xa8;
*(uint16_t*)0x20000d2e = 0xd0;
*(uint32_t*)0x20000d30 = 0;
*(uint64_t*)0x20000d38 = 0;
*(uint64_t*)0x20000d40 = 0;
*(uint16_t*)0x20000d48 = 0x28;
memcpy((void*)0x20000d4a,
"\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"
"\000\000\000\000\000\000\000\000\000\000\000\000\000",
29);
*(uint8_t*)0x20000d67 = 0;
*(uint32_t*)0x20000d68 = 0xfffffffe;
syscall(__NR_setsockopt, r[0], 0x29, 0x40, 0x20000980ul, 0x401ul);
break;
case 5:
res = syscall(__NR_socket, 0x10ul, 3ul, 0xc);
if (res != -1)
r[1] = res;
break;
case 6:
*(uint64_t*)0x20000100 = 0;
*(uint32_t*)0x20000108 = 0;
*(uint64_t*)0x20000110 = 0x200000c0;
*(uint64_t*)0x200000c0 = 0x20000040;
*(uint32_t*)0x20000040 = 0x2c;
*(uint8_t*)0x20000044 = 0;
*(uint8_t*)0x20000045 = 0xb;
*(uint16_t*)0x20000046 = 5;
*(uint32_t*)0x20000048 = 0;
*(uint32_t*)0x2000004c = 0;
*(uint8_t*)0x20000050 = 2;
*(uint8_t*)0x20000051 = 0;
*(uint16_t*)0x20000052 = htobe16(0);
*(uint16_t*)0x20000054 = 8;
*(uint16_t*)0x20000056 = 1;
memcpy((void*)0x20000058, "\000\000\000\000", 4);
*(uint16_t*)0x2000005c = 8;
STORE_BY_BITMASK(uint16_t, , 0x2000005e, 2, 0, 14);
STORE_BY_BITMASK(uint16_t, , 0x2000005f, 1, 6, 1);
STORE_BY_BITMASK(uint16_t, , 0x2000005f, 0, 7, 1);
*(uint32_t*)0x20000060 = htobe32(0);
*(uint16_t*)0x20000064 = 8;
STORE_BY_BITMASK(uint16_t, , 0x20000066, 3, 0, 14);
STORE_BY_BITMASK(uint16_t, , 0x20000067, 1, 6, 1);
STORE_BY_BITMASK(uint16_t, , 0x20000067, 0, 7, 1);
*(uint32_t*)0x20000068 = htobe32(1);
*(uint64_t*)0x200000c8 = 0x2c;
*(uint64_t*)0x20000118 = 1;
*(uint64_t*)0x20000120 = 0;
*(uint64_t*)0x20000128 = 0;
*(uint32_t*)0x20000130 = 0;
syscall(__NR_sendmsg, r[1], 0x20000100ul, 0ul);
break;
}
}
int main(void)
{
syscall(__NR_mmap, 0x1ffff000ul, 0x1000ul, 0ul, 0x32ul, -1, 0ul);
syscall(__NR_mmap, 0x20000000ul, 0x1000000ul, 7ul, 0x32ul, -1, 0ul);
syscall(__NR_mmap, 0x21000000ul, 0x1000ul, 0ul, 0x32ul, -1, 0ul);
do_sandbox_none();
return 0;
}