// https://syzkaller.appspot.com/bug?id=c996e4466da0f8f49195975856b867518d2b6a17
// autogenerated by syzkaller (https://github.com/google/syzkaller)
#define _GNU_SOURCE
#include <arpa/inet.h>
#include <dirent.h>
#include <endian.h>
#include <errno.h>
#include <fcntl.h>
#include <net/if.h>
#include <netinet/in.h>
#include <pthread.h>
#include <setjmp.h>
#include <signal.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/ioctl.h>
#include <sys/mman.h>
#include <sys/mount.h>
#include <sys/prctl.h>
#include <sys/socket.h>
#include <sys/stat.h>
#include <sys/syscall.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <time.h>
#include <unistd.h>
#include <linux/futex.h>
#include <linux/genetlink.h>
#include <linux/if_addr.h>
#include <linux/if_link.h>
#include <linux/in6.h>
#include <linux/loop.h>
#include <linux/neighbour.h>
#include <linux/net.h>
#include <linux/netlink.h>
#include <linux/rtnetlink.h>
#include <linux/veth.h>
#ifndef __NR_memfd_create
#define __NR_memfd_create 319
#endif
static unsigned long long procid;
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 use_temporary_dir(void)
{
char tmpdir_template[] = "./syzkaller.XXXXXX";
char* tmpdir = mkdtemp(tmpdir_template);
if (!tmpdir)
exit(1);
if (chmod(tmpdir, 0777))
exit(1);
if (chdir(tmpdir))
exit(1);
}
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);
}
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 void netlink_nest(struct nlmsg* nlmsg, int typ)
{
struct nlattr* attr = (struct nlattr*)nlmsg->pos;
attr->nla_type = typ;
nlmsg->pos += sizeof(*attr);
nlmsg->nested[nlmsg->nesting++] = attr;
}
static void netlink_done(struct nlmsg* nlmsg)
{
struct nlattr* attr = nlmsg->nested[--nlmsg->nesting];
attr->nla_len = nlmsg->pos - (char*)attr;
}
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_add_device_impl(struct nlmsg* nlmsg, const char* type,
const char* name, bool up)
{
struct ifinfomsg hdr;
memset(&hdr, 0, sizeof(hdr));
if (up)
hdr.ifi_flags = hdr.ifi_change = IFF_UP;
netlink_init(nlmsg, RTM_NEWLINK, NLM_F_EXCL | NLM_F_CREATE, &hdr,
sizeof(hdr));
if (name)
netlink_attr(nlmsg, IFLA_IFNAME, name, strlen(name));
netlink_nest(nlmsg, IFLA_LINKINFO);
netlink_attr(nlmsg, IFLA_INFO_KIND, type, strlen(type));
}
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 struct nlmsg nlmsg;
//% This code is derived from puff.{c,h}, found in the zlib development. The
//% original files come with the following copyright notice:
//% Copyright (C) 2002-2013 Mark Adler, all rights reserved
//% version 2.3, 21 Jan 2013
//% This software is provided 'as-is', without any express or implied
//% warranty. In no event will the author be held liable for any damages
//% arising from the use of this software.
//% Permission is granted to anyone to use this software for any purpose,
//% including commercial applications, and to alter it and redistribute it
//% freely, subject to the following restrictions:
//% 1. The origin of this software must not be misrepresented; you must not
//% claim that you wrote the original software. If you use this software
//% in a product, an acknowledgment in the product documentation would be
//% appreciated but is not required.
//% 2. Altered source versions must be plainly marked as such, and must not be
//% misrepresented as being the original software.
//% 3. This notice may not be removed or altered from any source distribution.
//% Mark Adler madler@alumni.caltech.edu
//% BEGIN CODE DERIVED FROM puff.{c,h}
#define MAXBITS 15
#define MAXLCODES 286
#define MAXDCODES 30
#define MAXCODES (MAXLCODES + MAXDCODES)
#define FIXLCODES 288
struct puff_state {
unsigned char* out;
unsigned long outlen;
unsigned long outcnt;
const unsigned char* in;
unsigned long inlen;
unsigned long incnt;
int bitbuf;
int bitcnt;
jmp_buf env;
};
static int puff_bits(struct puff_state* s, int need)
{
long val = s->bitbuf;
while (s->bitcnt < need) {
if (s->incnt == s->inlen)
longjmp(s->env, 1);
val |= (long)(s->in[s->incnt++]) << s->bitcnt;
s->bitcnt += 8;
}
s->bitbuf = (int)(val >> need);
s->bitcnt -= need;
return (int)(val & ((1L << need) - 1));
}
static int puff_stored(struct puff_state* s)
{
s->bitbuf = 0;
s->bitcnt = 0;
if (s->incnt + 4 > s->inlen)
return 2;
unsigned len = s->in[s->incnt++];
len |= s->in[s->incnt++] << 8;
if (s->in[s->incnt++] != (~len & 0xff) ||
s->in[s->incnt++] != ((~len >> 8) & 0xff))
return -2;
if (s->incnt + len > s->inlen)
return 2;
if (s->outcnt + len > s->outlen)
return 1;
for (; len--; s->outcnt++, s->incnt++) {
if (s->in[s->incnt])
s->out[s->outcnt] = s->in[s->incnt];
}
return 0;
}
struct puff_huffman {
short* count;
short* symbol;
};
static int puff_decode(struct puff_state* s, const struct puff_huffman* h)
{
int first = 0;
int index = 0;
int bitbuf = s->bitbuf;
int left = s->bitcnt;
int code = first = index = 0;
int len = 1;
short* next = h->count + 1;
while (1) {
while (left--) {
code |= bitbuf & 1;
bitbuf >>= 1;
int count = *next++;
if (code - count < first) {
s->bitbuf = bitbuf;
s->bitcnt = (s->bitcnt - len) & 7;
return h->symbol[index + (code - first)];
}
index += count;
first += count;
first <<= 1;
code <<= 1;
len++;
}
left = (MAXBITS + 1) - len;
if (left == 0)
break;
if (s->incnt == s->inlen)
longjmp(s->env, 1);
bitbuf = s->in[s->incnt++];
if (left > 8)
left = 8;
}
return -10;
}
static int puff_construct(struct puff_huffman* h, const short* length, int n)
{
int len;
for (len = 0; len <= MAXBITS; len++)
h->count[len] = 0;
int symbol;
for (symbol = 0; symbol < n; symbol++)
(h->count[length[symbol]])++;
if (h->count[0] == n)
return 0;
int left = 1;
for (len = 1; len <= MAXBITS; len++) {
left <<= 1;
left -= h->count[len];
if (left < 0)
return left;
}
short offs[MAXBITS + 1];
offs[1] = 0;
for (len = 1; len < MAXBITS; len++)
offs[len + 1] = offs[len] + h->count[len];
for (symbol = 0; symbol < n; symbol++)
if (length[symbol] != 0)
h->symbol[offs[length[symbol]]++] = symbol;
return left;
}
static int puff_codes(struct puff_state* s, const struct puff_huffman* lencode,
const struct puff_huffman* distcode)
{
static const short lens[29] = {3, 4, 5, 6, 7, 8, 9, 10, 11, 13,
15, 17, 19, 23, 27, 31, 35, 43, 51, 59,
67, 83, 99, 115, 131, 163, 195, 227, 258};
static const short lext[29] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 2,
2, 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 0};
static const short dists[30] = {
1, 2, 3, 4, 5, 7, 9, 13, 17, 25,
33, 49, 65, 97, 129, 193, 257, 385, 513, 769,
1025, 1537, 2049, 3073, 4097, 6145, 8193, 12289, 16385, 24577};
static const short dext[30] = {0, 0, 0, 0, 1, 1, 2, 2, 3, 3,
4, 4, 5, 5, 6, 6, 7, 7, 8, 8,
9, 9, 10, 10, 11, 11, 12, 12, 13, 13};
int symbol;
do {
symbol = puff_decode(s, lencode);
if (symbol < 0)
return symbol;
if (symbol < 256) {
if (s->outcnt == s->outlen)
return 1;
if (symbol)
s->out[s->outcnt] = symbol;
s->outcnt++;
} else if (symbol > 256) {
symbol -= 257;
if (symbol >= 29)
return -10;
int len = lens[symbol] + puff_bits(s, lext[symbol]);
symbol = puff_decode(s, distcode);
if (symbol < 0)
return symbol;
unsigned dist = dists[symbol] + puff_bits(s, dext[symbol]);
if (dist > s->outcnt)
return -11;
if (s->outcnt + len > s->outlen)
return 1;
while (len--) {
if (dist <= s->outcnt && s->out[s->outcnt - dist])
s->out[s->outcnt] = s->out[s->outcnt - dist];
s->outcnt++;
}
}
} while (symbol != 256);
return 0;
}
static int puff_fixed(struct puff_state* s)
{
static int virgin = 1;
static short lencnt[MAXBITS + 1], lensym[FIXLCODES];
static short distcnt[MAXBITS + 1], distsym[MAXDCODES];
static struct puff_huffman lencode, distcode;
if (virgin) {
lencode.count = lencnt;
lencode.symbol = lensym;
distcode.count = distcnt;
distcode.symbol = distsym;
short lengths[FIXLCODES];
int symbol;
for (symbol = 0; symbol < 144; symbol++)
lengths[symbol] = 8;
for (; symbol < 256; symbol++)
lengths[symbol] = 9;
for (; symbol < 280; symbol++)
lengths[symbol] = 7;
for (; symbol < FIXLCODES; symbol++)
lengths[symbol] = 8;
puff_construct(&lencode, lengths, FIXLCODES);
for (symbol = 0; symbol < MAXDCODES; symbol++)
lengths[symbol] = 5;
puff_construct(&distcode, lengths, MAXDCODES);
virgin = 0;
}
return puff_codes(s, &lencode, &distcode);
}
static int puff_dynamic(struct puff_state* s)
{
static const short order[19] = {16, 17, 18, 0, 8, 7, 9, 6, 10, 5,
11, 4, 12, 3, 13, 2, 14, 1, 15};
int nlen = puff_bits(s, 5) + 257;
int ndist = puff_bits(s, 5) + 1;
int ncode = puff_bits(s, 4) + 4;
if (nlen > MAXLCODES || ndist > MAXDCODES)
return -3;
short lengths[MAXCODES];
int index;
for (index = 0; index < ncode; index++)
lengths[order[index]] = puff_bits(s, 3);
for (; index < 19; index++)
lengths[order[index]] = 0;
short lencnt[MAXBITS + 1], lensym[MAXLCODES];
struct puff_huffman lencode = {lencnt, lensym};
int err = puff_construct(&lencode, lengths, 19);
if (err != 0)
return -4;
index = 0;
while (index < nlen + ndist) {
int symbol;
int len;
symbol = puff_decode(s, &lencode);
if (symbol < 0)
return symbol;
if (symbol < 16)
lengths[index++] = symbol;
else {
len = 0;
if (symbol == 16) {
if (index == 0)
return -5;
len = lengths[index - 1];
symbol = 3 + puff_bits(s, 2);
} else if (symbol == 17)
symbol = 3 + puff_bits(s, 3);
else
symbol = 11 + puff_bits(s, 7);
if (index + symbol > nlen + ndist)
return -6;
while (symbol--)
lengths[index++] = len;
}
}
if (lengths[256] == 0)
return -9;
err = puff_construct(&lencode, lengths, nlen);
if (err && (err < 0 || nlen != lencode.count[0] + lencode.count[1]))
return -7;
short distcnt[MAXBITS + 1], distsym[MAXDCODES];
struct puff_huffman distcode = {distcnt, distsym};
err = puff_construct(&distcode, lengths + nlen, ndist);
if (err && (err < 0 || ndist != distcode.count[0] + distcode.count[1]))
return -8;
return puff_codes(s, &lencode, &distcode);
}
static int puff(unsigned char* dest, unsigned long* destlen,
const unsigned char* source, unsigned long sourcelen)
{
struct puff_state s = {
.out = dest,
.outlen = *destlen,
.outcnt = 0,
.in = source,
.inlen = sourcelen,
.incnt = 0,
.bitbuf = 0,
.bitcnt = 0,
};
int err;
if (setjmp(s.env) != 0)
err = 2;
else {
int last;
do {
last = puff_bits(&s, 1);
int type = puff_bits(&s, 2);
err = type == 0 ? puff_stored(&s)
: (type == 1 ? puff_fixed(&s)
: (type == 2 ? puff_dynamic(&s) : -1));
if (err != 0)
break;
} while (!last);
}
*destlen = s.outcnt;
return err;
}
//% END CODE DERIVED FROM puff.{c,h}
#define ZLIB_HEADER_WIDTH 2
static int puff_zlib_to_file(const unsigned char* source,
unsigned long sourcelen, int dest_fd)
{
if (sourcelen < ZLIB_HEADER_WIDTH)
return 0;
source += ZLIB_HEADER_WIDTH;
sourcelen -= ZLIB_HEADER_WIDTH;
const unsigned long max_destlen = 132 << 20;
void* ret = mmap(0, max_destlen, PROT_WRITE | PROT_READ,
MAP_PRIVATE | MAP_ANON, -1, 0);
if (ret == MAP_FAILED)
return -1;
unsigned char* dest = (unsigned char*)ret;
unsigned long destlen = max_destlen;
int err = puff(dest, &destlen, source, sourcelen);
if (err) {
munmap(dest, max_destlen);
errno = -err;
return -1;
}
if (write(dest_fd, dest, destlen) != (ssize_t)destlen) {
munmap(dest, max_destlen);
return -1;
}
return munmap(dest, max_destlen);
}
static int setup_loop_device(unsigned char* data, unsigned long size,
const char* loopname, int* loopfd_p)
{
int err = 0, loopfd = -1;
int memfd = syscall(__NR_memfd_create, "syzkaller", 0);
if (memfd == -1) {
err = errno;
goto error;
}
if (puff_zlib_to_file(data, size, memfd)) {
err = errno;
goto error_close_memfd;
}
loopfd = open(loopname, O_RDWR);
if (loopfd == -1) {
err = errno;
goto error_close_memfd;
}
if (ioctl(loopfd, LOOP_SET_FD, memfd)) {
if (errno != EBUSY) {
err = errno;
goto error_close_loop;
}
ioctl(loopfd, LOOP_CLR_FD, 0);
usleep(1000);
if (ioctl(loopfd, LOOP_SET_FD, memfd)) {
err = errno;
goto error_close_loop;
}
}
close(memfd);
*loopfd_p = loopfd;
return 0;
error_close_loop:
close(loopfd);
error_close_memfd:
close(memfd);
error:
errno = err;
return -1;
}
static void reset_loop_device(const char* loopname)
{
int loopfd = open(loopname, O_RDWR);
if (loopfd == -1) {
return;
}
if (ioctl(loopfd, LOOP_CLR_FD, 0)) {
}
close(loopfd);
}
static long syz_mount_image(volatile long fsarg, volatile long dir,
volatile long flags, volatile long optsarg,
volatile long change_dir,
volatile unsigned long size, volatile long image)
{
unsigned char* data = (unsigned char*)image;
int res = -1, err = 0, need_loop_device = !!size;
char* mount_opts = (char*)optsarg;
char* target = (char*)dir;
char* fs = (char*)fsarg;
char* source = NULL;
char loopname[64];
if (need_loop_device) {
int loopfd;
memset(loopname, 0, sizeof(loopname));
snprintf(loopname, sizeof(loopname), "/dev/loop%llu", procid);
if (setup_loop_device(data, size, loopname, &loopfd) == -1)
return -1;
close(loopfd);
source = loopname;
}
mkdir(target, 0777);
char opts[256];
memset(opts, 0, sizeof(opts));
if (strlen(mount_opts) > (sizeof(opts) - 32)) {
}
strncpy(opts, mount_opts, sizeof(opts) - 32);
if (strcmp(fs, "iso9660") == 0) {
flags |= MS_RDONLY;
} else if (strncmp(fs, "ext", 3) == 0) {
bool has_remount_ro = false;
char* remount_ro_start = strstr(opts, "errors=remount-ro");
if (remount_ro_start != NULL) {
char after = *(remount_ro_start + strlen("errors=remount-ro"));
char before = remount_ro_start == opts ? '\0' : *(remount_ro_start - 1);
has_remount_ro = ((before == '\0' || before == ',') &&
(after == '\0' || after == ','));
}
if (strstr(opts, "errors=panic") || !has_remount_ro)
strcat(opts, ",errors=continue");
} else if (strcmp(fs, "xfs") == 0) {
strcat(opts, ",nouuid");
}
res = mount(source, target, fs, flags, opts);
if (res == -1) {
err = errno;
goto error_clear_loop;
}
res = open(target, O_RDONLY | O_DIRECTORY);
if (res == -1) {
err = errno;
goto error_clear_loop;
}
if (change_dir) {
res = chdir(target);
if (res == -1) {
err = errno;
}
}
error_clear_loop:
if (need_loop_device)
reset_loop_device(loopname);
errno = err;
return res;
}
#define FS_IOC_SETFLAGS _IOW('f', 2, long)
static void remove_dir(const char* dir)
{
int iter = 0;
DIR* dp = 0;
const int umount_flags = MNT_FORCE | UMOUNT_NOFOLLOW;
retry:
while (umount2(dir, umount_flags) == 0) {
}
dp = opendir(dir);
if (dp == NULL) {
if (errno == EMFILE) {
exit(1);
}
exit(1);
}
struct dirent* ep = 0;
while ((ep = readdir(dp))) {
if (strcmp(ep->d_name, ".") == 0 || strcmp(ep->d_name, "..") == 0)
continue;
char filename[FILENAME_MAX];
snprintf(filename, sizeof(filename), "%s/%s", dir, ep->d_name);
while (umount2(filename, umount_flags) == 0) {
}
struct stat st;
if (lstat(filename, &st))
exit(1);
if (S_ISDIR(st.st_mode)) {
remove_dir(filename);
continue;
}
int i;
for (i = 0;; i++) {
if (unlink(filename) == 0)
break;
if (errno == EPERM) {
int fd = open(filename, O_RDONLY);
if (fd != -1) {
long flags = 0;
if (ioctl(fd, FS_IOC_SETFLAGS, &flags) == 0) {
}
close(fd);
continue;
}
}
if (errno == EROFS) {
break;
}
if (errno != EBUSY || i > 100)
exit(1);
if (umount2(filename, umount_flags))
exit(1);
}
}
closedir(dp);
for (int i = 0;; i++) {
if (rmdir(dir) == 0)
break;
if (i < 100) {
if (errno == EPERM) {
int fd = open(dir, O_RDONLY);
if (fd != -1) {
long flags = 0;
if (ioctl(fd, FS_IOC_SETFLAGS, &flags) == 0) {
}
close(fd);
continue;
}
}
if (errno == EROFS) {
break;
}
if (errno == EBUSY) {
if (umount2(dir, umount_flags))
exit(1);
continue;
}
if (errno == ENOTEMPTY) {
if (iter < 100) {
iter++;
goto retry;
}
}
}
exit(1);
}
}
static void kill_and_wait(int pid, int* status)
{
kill(-pid, SIGKILL);
kill(pid, SIGKILL);
for (int i = 0; i < 100; i++) {
if (waitpid(-1, status, WNOHANG | __WALL) == pid)
return;
usleep(1000);
}
DIR* dir = opendir("/sys/fs/fuse/connections");
if (dir) {
for (;;) {
struct dirent* ent = readdir(dir);
if (!ent)
break;
if (strcmp(ent->d_name, ".") == 0 || strcmp(ent->d_name, "..") == 0)
continue;
char abort[300];
snprintf(abort, sizeof(abort), "/sys/fs/fuse/connections/%s/abort",
ent->d_name);
int fd = open(abort, O_WRONLY);
if (fd == -1) {
continue;
}
if (write(fd, abort, 1) < 0) {
}
close(fd);
}
closedir(dir);
} else {
}
while (waitpid(-1, status, __WALL) != pid) {
}
}
static void reset_loop()
{
char buf[64];
snprintf(buf, sizeof(buf), "/dev/loop%llu", procid);
int loopfd = open(buf, O_RDWR);
if (loopfd != -1) {
ioctl(loopfd, LOOP_CLR_FD, 0);
close(loopfd);
}
}
static void setup_test()
{
prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0);
setpgrp();
write_file("/proc/self/oom_score_adj", "1000");
if (symlink("/dev/binderfs", "./binderfs")) {
}
}
static void setup_sysctl()
{
int cad_pid = fork();
if (cad_pid < 0)
exit(1);
if (cad_pid == 0) {
for (;;)
sleep(100);
}
char tmppid[32];
snprintf(tmppid, sizeof(tmppid), "%d", cad_pid);
struct {
const char* name;
const char* data;
} files[] = {
{"/sys/kernel/debug/x86/nmi_longest_ns", "10000000000"},
{"/proc/sys/kernel/hung_task_check_interval_secs", "20"},
{"/proc/sys/net/core/bpf_jit_kallsyms", "1"},
{"/proc/sys/net/core/bpf_jit_harden", "0"},
{"/proc/sys/kernel/kptr_restrict", "0"},
{"/proc/sys/kernel/softlockup_all_cpu_backtrace", "1"},
{"/proc/sys/fs/mount-max", "100"},
{"/proc/sys/vm/oom_dump_tasks", "0"},
{"/proc/sys/debug/exception-trace", "0"},
{"/proc/sys/kernel/printk", "7 4 1 3"},
{"/proc/sys/kernel/keys/gc_delay", "1"},
{"/proc/sys/vm/oom_kill_allocating_task", "1"},
{"/proc/sys/kernel/ctrl-alt-del", "0"},
{"/proc/sys/kernel/cad_pid", tmppid},
};
for (size_t i = 0; i < sizeof(files) / sizeof(files[0]); i++) {
if (!write_file(files[i].name, files[i].data)) {
}
}
kill(cad_pid, SIGKILL);
while (waitpid(cad_pid, NULL, 0) != cad_pid)
;
}
#define NL802154_CMD_SET_SHORT_ADDR 11
#define NL802154_ATTR_IFINDEX 3
#define NL802154_ATTR_SHORT_ADDR 10
static const char* setup_802154()
{
const char* error = NULL;
int sock_generic = -1;
int sock_route = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
if (sock_route == -1) {
error = "socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE) failed";
goto fail;
}
sock_generic = socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC);
if (sock_generic == -1) {
error = "socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC) failed";
goto fail;
}
{
int nl802154_family_id =
netlink_query_family_id(&nlmsg, sock_generic, "nl802154", true);
if (nl802154_family_id < 0) {
error = "netlink_query_family_id failed";
goto fail;
}
for (int i = 0; i < 2; i++) {
char devname[] = "wpan0";
devname[strlen(devname) - 1] += i;
uint64_t hwaddr = 0xaaaaaaaaaaaa0002 + (i << 8);
uint16_t shortaddr = 0xaaa0 + i;
int ifindex = if_nametoindex(devname);
struct genlmsghdr genlhdr;
memset(&genlhdr, 0, sizeof(genlhdr));
genlhdr.cmd = NL802154_CMD_SET_SHORT_ADDR;
netlink_init(&nlmsg, nl802154_family_id, 0, &genlhdr, sizeof(genlhdr));
netlink_attr(&nlmsg, NL802154_ATTR_IFINDEX, &ifindex, sizeof(ifindex));
netlink_attr(&nlmsg, NL802154_ATTR_SHORT_ADDR, &shortaddr,
sizeof(shortaddr));
if (netlink_send(&nlmsg, sock_generic) < 0) {
error = "NL802154_CMD_SET_SHORT_ADDR failed";
goto fail;
}
netlink_device_change(&nlmsg, sock_route, devname, true, 0, &hwaddr,
sizeof(hwaddr), 0);
if (i == 0) {
netlink_add_device_impl(&nlmsg, "lowpan", "lowpan0", false);
netlink_done(&nlmsg);
netlink_attr(&nlmsg, IFLA_LINK, &ifindex, sizeof(ifindex));
if (netlink_send(&nlmsg, sock_route) < 0) {
error = "netlink: adding device lowpan0 type lowpan link wpan0";
goto fail;
}
}
}
}
fail:
close(sock_route);
close(sock_generic);
return error;
}
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 execute_one(void)
{
if (write(1, "executing program\n", sizeof("executing program\n") - 1)) {
}
int i, call, thread;
for (call = 0; call < 8; 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);
event_timedwait(&th->done,
50 + (call == 0 ? 4000 : 0) + (call == 2 ? 4000 : 0));
break;
}
}
for (i = 0; i < 100 && __atomic_load_n(&running, __ATOMIC_RELAXED); i++)
sleep_ms(1);
}
static void execute_one(void);
#define WAIT_FLAGS __WALL
static void loop(void)
{
int iter = 0;
for (;; iter++) {
char cwdbuf[32];
sprintf(cwdbuf, "./%d", iter);
if (mkdir(cwdbuf, 0777))
exit(1);
reset_loop();
int pid = fork();
if (pid < 0)
exit(1);
if (pid == 0) {
if (chdir(cwdbuf))
exit(1);
setup_test();
execute_one();
exit(0);
}
int status = 0;
uint64_t start = current_time_ms();
for (;;) {
sleep_ms(10);
if (waitpid(-1, &status, WNOHANG | WAIT_FLAGS) == pid)
break;
if (current_time_ms() - start < 5000)
continue;
kill_and_wait(pid, &status);
break;
}
remove_dir(cwdbuf);
}
}
uint64_t r[1] = {0xffffffffffffffff};
void execute_call(int call)
{
intptr_t res = 0;
switch (call) {
case 0:
memcpy((void*)0x20001500, "exfat\000", 6);
memcpy((void*)0x20000200, "./file1\000", 8);
memcpy(
(void*)0x20001580,
"\x78\x9c\xec\xdd\x0b\x98\x8e\xd5\xfa\x30\xf0\x75\xaf\xb5\x1e\xc6\x34"
"\xf1\x36\xc9\x61\x58\xf7\xba\x1f\xde\x34\x58\x26\x49\x72\x48\x92\x43"
"\x92\x24\x49\x92\x53\x42\xd2\x24\x49\x42\x62\xc8\x29\x09\x49\xc8\x71"
"\x92\x1c\x86\x90\x1c\x26\x26\x8d\xf3\xf9\x90\x73\xd2\x64\x4b\x92\x24"
"\xa7\x9c\xc2\xfa\xae\xa9\xdd\xb6\xf7\xbf\xfd\xbf\xec\xfd\xed\xfd\xff"
"\xfc\xbf\x3d\xf7\xef\xba\xd6\xf5\xae\xfb\x5a\xcf\xbd\x9e\xb5\xde\x9b"
"\x79\x9f\xe7\xb9\xe6\xf0\x43\xd7\xe1\xb5\x9a\xd4\xae\xde\x88\x88\xc4"
"\xbf\x04\x7e\x7b\x49\x11\x42\xc4\x08\x21\x06\x09\x21\xf2\x09\x21\x02"
"\x21\x44\xf9\xf8\xf2\xf1\xd9\xe3\x79\x14\xa4\xfc\x6b\x27\x61\xff\x5e"
"\x8f\xa6\x5d\xeb\x15\xb0\x6b\x89\xeb\x9f\xb3\x71\xfd\x73\x36\xae\x7f"
"\xce\xc6\xf5\xcf\xd9\xb8\xfe\x39\x1b\xd7\x3f\x67\xe3\xfa\xe7\x6c\x5c"
"\x7f\xc6\x72\xb2\xad\x33\x0b\xdf\xc0\x2d\xe7\xb6\x7f\xfd\xf9\x7f\xcc"
"\x6f\x2f\xfc\xfc\xff\xff\x43\xfc\xf9\x9f\xb3\x71\xfd\xff\xd3\x9c\xce"
"\xf3\xcf\x1c\xcd\xf5\xff\x4f\x72\xd9\x7b\xff\xcf\x65\x70\xfd\x73\x36"
"\xae\x7f\xce\xc6\xf5\xcf\xd9\xb8\xfe\x39\x1b\xd7\x3f\x67\xe3\xfa\x33"
"\x96\x93\x5d\xeb\xe7\xcf\xdc\xae\x6d\xbb\xd6\xff\xfe\x18\x63\x8c\x31"
"\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18"
"\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c"
"\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6"
"\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63"
"\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31"
"\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18"
"\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c"
"\x31\xc6\x18\x63\x8c\xe5\x0c\xe7\xfc\x15\x5a\x08\xf1\x7b\xff\x5a\xaf"
"\x8b\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\xff\x3e\x3e\xf7\xb5\x5e\x01"
"\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\xfe\xe7\x81\x90\x42\x09\x2d\x02"
"\x91\x4b\xe4\x16\x31\x22\x8f\x88\x15\xd7\x89\x38\x71\xbd\xc8\x2b\xf2"
"\x89\x88\xb8\x41\xc4\x8b\x1b\x45\x7e\x71\x93\x28\x20\x0a\x8a\x42\xa2"
"\xb0\x48\x10\x45\x44\x51\x61\x04\x0a\x2b\x48\x84\xa2\x98\x28\x2e\xa2"
"\xe2\x66\x51\x42\xdc\x22\x12\x45\x49\x51\x4a\x94\x16\x4e\x94\x11\x49"
"\xe2\x56\x51\x56\xdc\x26\xca\x89\xdb\x45\x79\x71\x87\xa8\x20\xee\x14"
"\x15\x45\x25\x51\x59\x54\x11\x77\x89\xaa\xe2\x6e\x51\x4d\xdc\x23\xaa"
"\x8b\x7b\x45\x0d\x51\x53\xd4\x12\xb5\xc5\x7d\xa2\x8e\xb8\x5f\xd4\x15"
"\x0f\x88\x7a\xe2\x41\x51\x5f\x3c\x24\x1a\x88\x87\x45\x43\xf1\x88\x68"
"\x24\x1e\x15\x8d\xc5\x63\xa2\x89\x78\x5c\x34\x15\x4f\x88\x66\xa2\xb9"
"\x68\x21\x5a\x8a\x56\xff\x57\xf9\xaf\x88\x9e\xe2\x55\xd1\x4b\xf4\x16"
"\x29\xa2\x8f\xe8\x2b\x5e\x13\xfd\x44\x7f\x31\x40\x0c\x14\x83\xc4\xeb"
"\x62\xb0\x78\x43\x0c\x11\x6f\x8a\xa1\x62\x98\x18\x2e\xde\x12\x23\xc4"
"\xdb\x62\xa4\x78\x47\x8c\x12\xa3\xc5\x18\xf1\xae\x18\x2b\xc6\x89\xf1"
"\x62\x82\x98\x28\x26\x89\x54\xf1\x9e\x98\x2c\xde\x17\x53\xc4\x07\x62"
"\xaa\x98\x26\xa6\x8b\x19\x22\x4d\xcc\x14\xb3\xc4\x87\x62\xb6\x98\x23"
"\xe6\x8a\x8f\xc4\x3c\xf1\xb1\x98\x2f\x16\x88\x85\x62\x91\x48\x17\x9f"
"\x88\xc5\x62\x89\xc8\x10\x9f\x8a\xa5\xe2\x33\x91\x29\x96\x89\xe5\x62"
"\x85\x58\x29\x56\x89\xd5\x62\x8d\x58\x2b\xd6\x89\xf5\x62\x83\xd8\x28"
"\x36\x89\xcd\x62\x8b\xd8\x2a\x3e\x17\xdb\xc4\x76\xb1\x43\xec\x14\xbb"
"\xc4\x6e\xb1\x47\x7c\x21\xf6\x8a\x2f\xc5\x3e\xf1\x95\xc8\x12\x5f\xff"
"\x93\xf9\x67\xff\x4b\x7e\x37\x10\x20\x40\x82\x04\x0d\x1a\x72\x41\x2e"
"\x88\x81\x18\x88\x85\x58\x88\x83\x38\xc8\x0b\x79\x21\x02\x11\x88\x87"
"\x78\xc8\x0f\xf9\xa1\x00\x14\x80\x42\x50\x08\x12\x20\x01\x8a\x42\x51"
"\x40\x40\x20\x20\x28\x06\xc5\x20\x0a\x51\x28\x01\x25\x20\x11\x12\xa1"
"\x14\x94\x02\x07\x0e\x92\x20\x09\xca\xc2\x6d\x50\x0e\xca\x41\x79\x28"
"\x0f\x15\xa0\x02\x54\x84\x4a\x50\x09\xaa\x40\x15\xa8\x0a\x55\xa1\x1a"
"\x54\x83\xea\x50\x1d\x6a\x40\x0d\xa8\x05\xb5\xe0\x3e\xb8\x0f\xee\x87"
"\xba\x50\x17\xea\x41\x3d\xa8\x0f\xf5\xa1\x01\x34\x80\x86\xd0\x10\x1a"
"\x41\x23\x68\x0c\x8d\xa1\x09\x34\x81\xa6\xd0\x14\x9a\x41\x33\x68\x01"
"\x2d\xa0\x15\xb4\x82\xd6\xd0\x1a\xda\x40\x1b\x68\x07\xed\xa0\x3d\xb4"
"\x87\x0e\xd0\x01\x92\x21\x19\x3a\x42\x47\xe8\x04\x9d\xa0\x33\x74\x86"
"\x2e\xd0\x05\xba\x42\x57\xe8\x06\xdd\xa1\x3b\xbc\x02\xaf\xc0\xab\xf0"
"\x2a\xf4\x86\x1a\xb2\x0f\xf4\x85\xbe\xd0\x0f\xfa\xc1\x00\x18\x08\x03"
"\xe1\x75\x18\x0c\x6f\xc0\x1b\xf0\x26\x0c\x85\x61\x30\x1c\xde\x82\xb7"
"\xe0\x6d\x18\x09\x67\x60\x14\x8c\x86\x31\x30\x06\xaa\xca\x71\x30\x1e"
"\x26\x00\xc9\x49\x90\x0a\xa9\x30\x19\x26\xc3\x14\x98\x02\x53\x61\x1a"
"\x4c\x83\x19\x90\x06\x33\x61\x16\xcc\x82\xd9\x30\x07\xe6\xc0\x47\x30"
"\x0f\x3e\x86\x8f\x61\x01\x2c\x80\x45\x90\x0e\xe9\xb0\x18\x96\x40\x06"
"\x64\xc0\x52\x38\x0b\x99\xb0\x0c\x96\xc3\x0a\x58\x09\xab\x60\x25\xac"
"\x81\xb5\xb0\x06\xd6\xc3\x06\x58\x0f\x9b\x60\x13\x6c\x81\x2d\xf0\x39"
"\x7c\x0e\xdb\x61\x3b\xec\x84\x9d\xb0\x1b\x76\xc3\x17\xf0\x05\x7c\x09"
"\x5f\xc2\x50\xc8\x82\x2c\xd8\x0f\xfb\xe1\x00\x1c\x80\x83\x70\x10\x0e"
"\xc1\x21\x38\x0c\x87\xe1\x08\x1c\x81\xa3\x70\x14\x8e\xc1\x31\x38\x0e"
"\x27\xe0\x24\x9c\x80\xd3\x70\x1a\xce\xc0\x59\x38\x07\xe7\xe0\x02\x5c"
"\x80\x8b\x70\x11\x2e\xc3\xe5\xec\xff\xfc\x32\x9b\x96\x5a\xe6\x92\xb9"
"\x64\x8c\x8c\x91\xb1\x32\x56\xc6\xc9\x38\x99\x57\xe6\x95\x11\x19\x91"
"\xf1\x32\x5e\xe6\x97\xf9\x65\x01\x59\x40\x16\x92\x85\x64\x82\x4c\x90"
"\x45\x65\x51\x89\x12\x25\xc9\x50\x16\x93\xc5\x64\x54\x46\x65\x09\x59"
"\x42\x26\xca\x44\x59\x4a\x96\x92\x4e\x3a\x99\x24\x93\x64\x59\x59\x56"
"\x96\x93\xe5\x64\x79\x79\x87\xac\x20\xef\x94\x15\x65\x25\xd9\xd6\x55"
"\x91\x55\x64\x55\xd9\xce\x55\x93\xf7\xc8\xea\xb2\xba\xac\x21\x6b\xca"
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"\xaa\x46\xf7\x50\x75\xba\x97\x6a\x50\x4d\xaa\x45\xb5\xe9\x3e\xaa\x43"
"\xf7\x53\x5d\x7a\x80\xea\xd1\x83\x54\x9f\x1e\xa2\x06\xf4\x30\x35\xa4"
"\x47\xa8\x11\x3d\x4a\x8d\xe9\x31\x6a\x42\x8f\x53\x53\x7a\x82\x9a\x51"
"\x73\x6a\x41\x2d\xa9\x15\x3d\x49\xad\xe9\x29\x6a\x43\x6d\xa9\x1d\x3d"
"\x4d\xed\xe9\x19\xea\x40\xcf\x52\x32\x3d\x47\x1d\xe9\x79\xea\x44\x2f"
"\x50\x67\x7a\x91\xba\xd0\x4b\xd4\x95\x5e\xa6\x6e\xd4\x9d\x7a\xd0\x2b"
"\xd4\x93\x5e\xa5\x5e\xd4\x9b\x52\xa8\x0f\xf5\xa5\xd7\xa8\x1f\xf5\xa7"
"\x01\x34\x90\x06\xd1\xeb\x34\x98\xde\xa0\x21\xf4\x26\x0d\xa5\x61\x34"
"\x9c\xde\xa2\x11\xf4\x36\x8d\xa4\x77\x68\x14\x8d\xa6\x31\xf4\x2e\x8d"
"\xa5\x71\x34\x9e\x26\xd0\x44\x9a\x44\xa9\xf4\x1e\x4d\xa6\xf7\x69\x0a"
"\x7d\x40\x53\x69\x1a\x4d\xa7\x19\x94\x46\x33\x69\x16\x7d\x48\xb3\x69"
"\x0e\xcd\xa5\x8f\x68\x1e\x7d\x4c\xf3\x69\x01\x2d\xa4\x45\x94\x4e\x9f"
"\xd0\x62\x5a\x42\x19\xf4\x29\x2d\xa5\xcf\x28\x93\x96\xd1\x72\x5a\x41"
"\x2b\x69\x15\xad\xa6\x35\xb4\x96\xd6\xd1\x7a\xda\x40\x1b\x69\x13\x6d"
"\xa6\x2d\xb4\x95\x3e\xa7\x6d\xb4\x9d\x76\xd0\x4e\xda\x45\xbb\x69\x0f"
"\x7d\x41\x7b\xe9\x4b\xda\x47\x5f\x51\x16\x7d\x4d\xfb\xe9\x4f\x74\x80"
"\xbe\xa1\x83\xf4\x2d\x1d\xa2\xef\xe8\x30\x7d\x4f\x47\xe8\x07\x3a\x4a"
"\x3f\xd2\x31\xfa\x89\x8e\xd3\x09\x3a\x49\xa7\xe8\x34\xfd\x4c\x67\xe8"
"\x2c\x9d\xa3\xf3\x74\x81\x7e\xa1\x8b\x74\x89\x2e\x93\x27\x11\x42\x28"
"\x43\x15\xea\x30\x08\x73\x85\xb9\xc3\x98\x30\x4f\x18\x1b\x5e\x17\xc6"
"\x85\xd7\x87\x79\xc3\x7c\x61\x24\xbc\x21\x8c\x0f\x6f\x0c\xf3\x87\x37"
"\x85\x05\xc2\x82\x61\xa1\xb0\x70\x98\x10\x16\x09\x8b\x86\x26\xc4\xd0"
"\x86\x14\x86\x61\xb1\xb0\x78\x18\x0d\x6f\x0e\x4b\x84\xb7\x84\x89\x61"
"\xc9\xb0\x54\x58\x3a\x74\x61\x99\x30\x29\xbc\x35\x2c\x1b\xde\x16\x96"
"\x0b\x6f\x0f\xcb\x87\x77\x84\x15\xc2\x3b\xc3\x8a\x61\xa5\xb0\x72\x58"
"\x25\xbc\x2b\xac\x1a\xde\x1d\x56\x0b\xef\x09\xab\x87\xf7\x86\x35\xc2"
"\x9a\x61\xad\xb0\x76\x78\x5f\x58\x27\xbc\x3f\xac\x1b\x3e\x10\xd6\x0b"
"\x1f\x0c\xcb\x85\x0f\x85\x0d\xc2\x87\xc3\x86\xe1\x23\x61\xa3\xf0\xd1"
"\xb0\x71\xf8\x58\xd8\x24\x7c\x3c\x6c\x1a\x3e\x11\x36\x0b\x9b\x87\x2d"
"\xc2\x96\x61\xab\xf0\xc9\xb0\x75\xf8\x54\xd8\x26\x6c\x1b\xb6\x0b\x9f"
"\x0e\xdb\x87\xcf\x84\x1d\xc2\x67\xc3\xe4\xf0\xb9\xb0\x63\xf8\xfc\x55"
"\xc7\x53\xc2\x3e\x61\xdf\xf0\xb5\xf0\xb5\xd0\xfb\x07\xd4\xc2\xe8\xa2"
"\x68\x7a\xf4\x93\xe8\xe2\xe8\x92\x68\x46\xf4\xd3\xe8\xd2\xe8\x67\xd1"
"\xcc\xe8\xb2\xe8\xf2\xe8\x8a\xe8\xca\xe8\xaa\xe8\xea\xe8\x9a\xe8\xda"
"\xe8\xba\xe8\xfa\xe8\x86\xe8\xc6\xe8\xa6\xe8\xe6\xe8\x96\xa8\xf7\xb5"
"\x73\x0b\x07\x4e\x3a\xe5\xb4\x0b\x5c\x2e\x97\xdb\xc5\xb8\x3c\x2e\xd6"
"\x5d\xe7\xe2\xdc\xf5\x2e\xaf\xcb\xe7\x22\xee\x06\x17\xef\x6e\x74\xf9"
"\xdd\x4d\xae\x80\x2b\xe8\x0a\xb9\xc2\x2e\xc1\x15\x71\x45\x9d\x71\xe8"
"\xac\x23\x17\xba\x62\xae\xb8\x8b\xba\x9b\x5d\x09\x77\x8b\x4b\x74\x25"
"\x5d\x29\x57\xda\x39\x57\xc6\x25\xb9\x96\xae\x95\x6b\xe5\x5a\xbb\xa7"
"\x5c\x1b\xd7\xd6\xb5\x73\x4f\xbb\xa7\xdd\x33\xee\x19\xf7\xac\x7b\xd6"
"\x3d\xe7\x3a\xba\xe7\x5d\x27\xf7\x82\xeb\xec\x5e\x74\x5d\xdc\x4b\xee"
"\x25\xf7\xb2\xeb\xe6\xba\xbb\x1e\xee\x15\xd7\xd3\xbd\xea\x7a\xb9\xde"
"\x2e\xc5\xa5\xb8\xbe\xae\xaf\xeb\xe7\xfa\xb9\x01\x6e\x80\x1b\xe4\x06"
"\xb9\xc1\x6e\xb0\x1b\xe2\x86\xb8\xa1\x6e\xa8\x1b\xee\x86\xbb\x11\x6e"
"\x84\x1b\xe9\x46\xba\x51\x6e\x94\x1b\xe3\xc6\xb8\xb1\x6e\xac\x1b\xef"
"\xc6\xbb\x89\x6e\xa2\x4b\x75\xa9\x6e\xb2\x9b\xec\xa6\xb8\x29\x6e\xaa"
"\x9b\xea\xa6\xbb\xe9\x2e\xcd\xa5\xb9\x59\x6e\x96\x9b\xed\x66\xbb\xb9"
"\x6e\xae\x9b\xe7\xe6\xb9\xf9\x6e\xbe\x5b\xe8\x16\xba\x74\x97\xee\x16"
"\xbb\xc5\x2e\xc3\x65\xb8\xa5\x6e\xa9\xcb\x74\x99\x6e\xb9\x5b\xee\x56"
"\xba\x95\x6e\xb5\x5b\xed\xd6\xba\xb5\x6e\xbd\x5b\xef\x36\xba\x8d\x6e"
"\xb3\xdb\xec\xb6\xba\xad\x6e\x9b\xdb\xe6\x76\xb8\x1d\x6e\x97\xdb\xe5"
"\xf6\xb8\x3d\x6e\xaf\xdb\xeb\xf6\xb9\x7d\x2e\xcb\x65\xb9\xfd\x6e\xbf"
"\x3b\xe0\x0e\xb8\x83\xee\x5b\x77\xc8\x7d\xe7\x0e\xbb\xef\xdd\x11\xf7"
"\x83\x3b\xea\x7e\x74\xc7\xdc\x4f\xee\xb8\x3b\xe1\x4e\xba\x53\xee\xb4"
"\xfb\xd9\x9d\x71\x67\xdd\x39\x77\xde\x5d\x70\xbf\xb8\x8b\xee\x92\xbb"
"\xec\xbc\x4b\x8d\xbc\x17\x99\x1c\x79\x3f\x32\x25\xf2\x41\x64\x6a\x64"
"\x5a\x64\x7a\x64\x46\x24\x2d\x32\x33\x32\x2b\xf2\x61\x64\x76\x64\x4e"
"\x64\x6e\xe4\xa3\xc8\xbc\xc8\xc7\x91\xf9\x91\x05\x91\x85\x91\x45\x91"
"\xf4\xc8\x27\x91\xc5\x91\x25\x91\x8c\xc8\xa7\x91\xa5\x91\xcf\x22\x99"
"\x91\x65\x91\xe5\x91\x15\x91\x95\x91\x55\x11\xef\x8b\x6c\x0b\x7d\x31"
"\x5f\xdc\x47\xfd\xcd\xbe\x84\xbf\xc5\x27\xfa\x92\xbe\x94\x2f\xed\x9d"
"\x2f\xe3\x93\xfc\xad\xbe\xac\xbf\xcd\x97\xf3\xb7\xfb\xf2\xfe\x0e\x5f"
"\xc1\xdf\xe9\x2b\xfa\x4a\xbe\xb2\x7f\xc2\x37\xf3\xcd\x7d\x0b\xdf\xd2"
"\xb7\xf2\x4f\xfa\xd6\xfe\x29\xdf\xc6\xb7\xf5\xed\xfc\xd3\xbe\xbd\x7f"
"\xc6\x77\xf0\xcf\xfa\x64\xff\x9c\xef\xe8\x9f\xf7\x9d\xfc\x0b\xbe\xb3"
"\x7f\xd1\x77\xf1\x2f\xf9\xae\xfe\x65\xdf\xcd\x77\xf7\x3d\xfc\x2b\xbe"
"\xa7\x7f\xd5\xf7\xf2\xbd\x7d\x8a\xef\xe3\xfb\xfa\xd7\x7c\x3f\xdf\xdf"
"\x0f\xf0\x03\xfd\x20\xff\xba\x1f\xec\xdf\xf0\x43\xfc\x9b\x7e\xa8\x1f"
"\xe6\x87\xfb\xb7\xfc\x08\xff\xb6\x1f\xe9\xdf\xf1\xa3\xfc\x68\x3f\xc6"
"\xbf\xeb\xc7\xfa\x71\x7e\xbc\x9f\xe0\x27\xfa\x49\x3e\xd5\xbf\xe7\x27"
"\xfb\xf7\xfd\x14\xff\x81\x9f\xea\xa7\xf9\xe9\x7e\x86\x4f\xf3\x33\xfd"
"\x2c\xff\xa1\x9f\xed\xe7\xf8\xb9\xfe\x23\x3f\xcf\x7f\xec\xe7\xfb\x05"
"\x7e\xa1\x5f\xe4\xd3\xfd\x27\x7e\xb1\x5f\xe2\x33\xfc\xa7\x7e\xa9\xff"
"\xcc\x67\xfa\x65\x7e\xb9\x5f\xe1\x57\xfa\x55\x7e\xb5\x5f\xe3\xd7\xfa"
"\x75\x7e\xbd\xdf\xe0\x37\xfa\x4d\x7e\xb3\xdf\xe2\xb7\xfa\xcf\xfd\x36"
"\xbf\xdd\xef\xf0\x3b\xfd\x2e\xbf\xdb\xef\xf1\x5f\xf8\xbd\xfe\x4b\xbf"
"\xcf\x7f\xe5\xb3\xfc\xd7\x7e\xbf\xff\x93\x3f\xe0\xbf\xf1\x07\xfd\xb7"
"\xfe\x90\xff\xce\x1f\xf6\xdf\xfb\x23\xfe\x07\x7f\xd4\xff\xe8\x8f\xf9"
"\x9f\xfc\x71\x7f\xc2\x9f\xf4\xa7\xfc\x69\xff\xb3\x3f\xe3\xcf\xfa\x73"
"\xfe\xbc\xbf\xe0\x7f\xf1\x17\xfd\x25\x7f\x99\x7f\x66\x8d\x31\xc6\x18"
"\x63\xec\x1f\xa2\xae\x32\xde\xe7\xbf\xc9\x91\x7f\xee\xf7\x15\x42\x5c"
"\xbf\xbd\xf0\xa1\xff\x3a\xbe\xb1\xc0\x6f\xfd\xfe\xb9\x13\xda\x47\x84"
"\x10\xcf\xf5\xee\xfa\xe8\xef\xad\x46\x8d\x94\x94\x94\x3f\x1f\x9b\xa9"
"\x44\x50\x7c\x81\x10\x22\x72\x25\x3f\x97\xb8\x12\x2f\x13\xed\xc4\x33"
"\x22\x59\xb4\x15\x65\xff\x32\x1e\xf3\x57\xe7\xea\x2f\xbb\x5f\xa0\xab"
"\xcc\x1f\xbd\x43\x88\xd8\xbf\xca\xc9\xce\xff\x3d\xbe\x32\xff\x6d\x7f"
"\x77\xff\xfd\xe5\xb8\x79\x57\x9d\x7f\x81\x10\x89\xc5\xaf\xe4\xe4\x11"
"\x57\xe2\x2b\xf3\x97\xfb\x6f\xe6\x2f\xd8\xfa\x2a\xf3\xe7\xf9\x26\x55"
"\x88\x36\x7f\x95\x13\x27\xae\xc4\x57\xe6\x4f\x12\x4f\x89\xe7\x45\xf2"
"\xdf\x1c\xc9\x18\x63\x8c\x31\xc6\x18\x63\x8c\xfd\xa6\xbf\xac\xdc\xf9"
"\x6a\xf7\xb7\xd9\xf7\xe7\x09\xfa\x4a\x4e\x6e\x71\x25\xfe\x7b\xf7\xe7"
"\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\xfb\xdf\xe5\xc5\xee\x3d\x9e\x7d"
"\x32\x39\xb9\x6d\x67\xee\xfc\x4f\x75\x7c\xbe\xdf\xde\xea\xff\x2d\xeb"
"\xe1\x0e\x77\xfe\x81\xce\xb5\xfe\xca\xc4\x18\x63\x8c\x31\xc6\x18\xfb"
"\x77\xbb\x72\xd1\x7f\xad\x57\xc2\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31"
"\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18"
"\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\xe5\x5c\xff\x2f\x7e"
"\x9d\xd8\xef\xe7\xba\xda\xdf\x1a\x64\x8c\x31\xc6\x18\x63\x8c\x31\xc6"
"\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63"
"\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31"
"\xc6\x18\x63\x8c\x31\xc6\xfe\x53\xfd\x9f\x00\x00\x00\xff\xff\xb2\x31"
"\x3b\x12",
5374);
syz_mount_image(/*fs=*/0x20001500, /*dir=*/0x20000200,
/*flags=MS_POSIXACL*/ 0x10000, /*opts=*/0x20000100,
/*chdir=*/1, /*size=*/0x14fe, /*img=*/0x20001580);
break;
case 1:
memcpy((void*)0x20000900, "./file1\000", 8);
syscall(__NR_truncate, /*file=*/0x20000900ul, /*len=*/0xb73dul);
break;
case 2:
memcpy((void*)0x20000080, "udf\000", 4);
memcpy((void*)0x20000180, "./file1\000", 8);
memcpy((void*)0x20000e00, "lastblock", 9);
*(uint8_t*)0x20000e09 = 0x3d;
sprintf((char*)0x20000e0a, "%020llu", (long long)0);
*(uint8_t*)0x20000e1e = 0x2c;
memcpy((void*)0x20000e1f, "umask", 5);
*(uint8_t*)0x20000e24 = 0x3d;
sprintf((char*)0x20000e25, "%023llo", (long long)0);
*(uint8_t*)0x20000e3c = 0x2c;
memcpy((void*)0x20000e3d, "undelete", 8);
*(uint8_t*)0x20000e45 = 0x2c;
memcpy((void*)0x20000e46, "longad", 6);
*(uint8_t*)0x20000e4c = 0x2c;
memcpy((void*)0x20000e4d, "shortad", 7);
*(uint8_t*)0x20000e54 = 0x2c;
memcpy((void*)0x20000e55, "uid=forget", 10);
*(uint8_t*)0x20000e5f = 0x2c;
memcpy((void*)0x20000e60, "undelete", 8);
*(uint8_t*)0x20000e68 = 0x2c;
memcpy((void*)0x20000e69, "iocharset", 9);
*(uint8_t*)0x20000e72 = 0x3d;
memcpy((void*)0x20000e73, "utf8", 4);
*(uint8_t*)0x20000e77 = 0x2c;
memcpy((void*)0x20000e78, "shortad", 7);
*(uint8_t*)0x20000e7f = 0x2c;
memcpy((void*)0x20000e80, "iocharset", 9);
*(uint8_t*)0x20000e89 = 0x3d;
memcpy((void*)0x20000e8a, "default", 7);
*(uint8_t*)0x20000e91 = 0x2c;
memcpy((void*)0x20000e92, "uid=forget", 10);
*(uint8_t*)0x20000e9c = 0x2c;
memcpy((void*)0x20000e9d, "nostrict", 8);
*(uint8_t*)0x20000ea5 = 0x2c;
memcpy((void*)0x20000ea6, "session", 7);
*(uint8_t*)0x20000ead = 0x3d;
sprintf((char*)0x20000eae, "%020llu", (long long)0);
*(uint8_t*)0x20000ec2 = 0x2c;
memcpy((void*)0x20000ec3, "partition", 9);
*(uint8_t*)0x20000ecc = 0x3d;
sprintf((char*)0x20000ecd, "%020llu", (long long)6);
*(uint8_t*)0x20000ee1 = 0x2c;
*(uint8_t*)0x20000ee2 = 0;
memcpy(
(void*)0x200001c0,
"\x78\x9c\xec\xdd\x4f\x6c\x1c\xd7\x7d\x07\xf0\xdf\x1b\x2d\xc5\x95\xdc"
"\x56\x4c\xec\x28\x4e\x1a\x17\x9b\xb6\x48\x65\xc5\x72\xf5\x2f\xa6\x62"
"\x15\xee\xaa\xa6\xd9\x06\x90\x65\x22\x14\x73\x0b\xc0\x15\x49\xa9\x0b"
"\x53\x24\x41\x52\x8d\x6c\xa4\x05\xd3\x4b\x0f\x3d\x04\x28\x8a\x1e\x72"
"\x22\xd0\x1a\x05\x52\x34\x30\x9a\x22\xe8\x91\x69\x5d\x20\xb9\xf8\x50"
"\xe4\xd4\x13\xd1\xc2\x46\x50\xf4\xc0\x16\x01\x72\x0a\x18\xcc\xec\x5b"
"\x71\x49\x91\x36\x2d\x8a\x12\x65\x7d\x3e\x36\xf5\xdd\x9d\x7d\x6f\xe6"
"\xbd\x79\xeb\x19\x59\xd0\x9b\x17\x00\x00\x00\x00\x00\x00\x00\x00\x00"
"\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
"\x00\x00\x00\x00\x00\x40\xc4\x1f\xbc\x72\xe9\xf4\x99\xf4\xb0\x5b\x01"
"\x00\x3c\x48\x57\x46\xbf\x7a\xfa\xac\xfb\x3f\x00\x3c\x56\xae\xfa\xff"
"\x7f\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x38\xe8\x52\x14\xf1"
"\x64\xa4\x98\xbb\xb2\x96\xc6\xab\xf7\x1d\xf5\xcb\xed\xbe\x5b\xb7\xc7"
"\x86\x86\xb7\xaf\x76\x24\x55\x35\x0f\x55\xe5\xcb\x9f\xfa\x99\xb3\xe7"
"\xce\x7f\xe9\x85\xc1\x0b\xdd\xbc\xdc\x9e\xf9\x80\xfa\xf7\xdb\x67\xe3"
"\xb5\xd1\xab\x97\x1a\x2f\xcf\xde\x9c\x9b\x9f\x5a\x58\x98\x9a\x6c\x8c"
"\xcd\xb4\x27\x66\x27\xa7\x76\xbd\x87\xbd\xd6\xdf\xea\x64\x75\x02\x1a"
"\x37\x5f\xbf\x35\x79\xfd\xfa\x42\xe3\xec\xf3\xe7\x36\x7d\x7c\x7b\xe0"
"\xfd\xfe\x27\x8e\x0f\x5c\x1c\x7c\xf6\xd4\x33\xdd\xb2\x63\x43\xc3\xc3"
"\xa3\x1b\x45\xea\xbd\xe5\x6b\xf7\xdc\x90\x8e\x9d\x66\x78\x1c\x8e\x22"
"\x4e\x45\x8a\xe7\xbe\xf7\xd3\xd4\x8a\x88\x22\xf6\x7e\x2e\xea\x0f\x76"
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"\xb2\xec\xde\xe8\x5c\x6b\xbe\x75\x6d\x7a\xaa\x31\xd2\x9a\x5f\x6c\x2f"
"\xb6\x67\x67\x46\x52\xa7\xb5\x65\x7f\x1a\x51\xc4\x85\x14\xb1\x1c\x11"
"\xab\xfd\x77\xef\xae\x2f\x8a\x78\x3d\x52\x7c\xe7\xd8\x5a\xfa\xd7\xfe"
"\x88\x43\xdd\xf3\xf0\xc5\x2b\xa3\x5f\x3d\x7d\x76\xe7\x76\x14\xfb\xd8"
"\xc7\x5d\x28\xdb\xd9\xe8\x8b\x58\x2e\x1e\x81\x31\x3b\xc0\xfa\xa3\x88"
"\x7f\x8e\x14\x3f\x7b\xe7\x44\xfc\x5b\x7f\x44\x2d\x3a\x3f\xf1\x85\x88"
"\x57\xcb\xfc\x41\xc4\x5b\xd1\x19\xef\x54\x7e\x31\xce\x47\xbc\xb7\xcd"
"\xf7\x88\x47\x53\x2d\x8a\xf8\xff\x72\xfc\x2f\xae\xa5\x77\xfa\xcb\xeb"
"\x41\xf7\xba\x72\xf9\x6b\x8d\xaf\xcc\x5c\x9f\xed\x29\xdb\xbd\xae\x3c"
"\xf2\xf7\x87\x07\xe9\x80\x5f\x9b\xea\x51\xc4\x8f\xaa\x2b\xfe\x5a\xfa"
"\x77\xff\x5d\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x1c"
"\x20\x45\xfc\x7a\xa4\x78\xf1\xdd\x13\xa9\x9a\x1f\x7c\x67\x4e\x71\x7b"
"\xe6\x46\xe3\x6a\xeb\xda\x74\x67\x5a\x5f\x77\xee\x5f\x77\xce\xf4\xfa"
"\xfa\xfa\x7a\x23\x75\xb2\x99\x73\x3c\xe7\x52\xce\xe5\x9c\x2b\x39\x57"
"\x73\x46\x91\xeb\xe7\x6c\x96\x59\x5f\x5f\x1f\xcf\xef\x97\x72\x2e\xe7"
"\x5c\xc9\xb9\x9a\x33\x0e\xe5\xfa\x39\x9b\x39\xc7\x73\x2e\xe5\x5c\xce"
"\xb9\x92\x73\x35\x67\xd4\x72\xfd\x9c\xcd\x9c\xe3\x39\x97\x72\x2e\xe7"
"\x5c\xc9\xb9\x9a\x33\x0e\xc8\xdc\x3d\x00\x00\x00\x00\x00\x00\x00\x00"
"\x00\x00\x00\x00\x00\x00\xe0\xe3\xa5\xa8\xfe\x49\xf1\xed\x6f\xac\xa5"
"\xf5\xfe\xce\xfa\xd2\xe3\xd1\xc9\x15\xeb\x81\x7e\xec\xfd\x32\x00\x00"
"\xff\xff\x21\x5f\xf8\xab",
3117);
syz_mount_image(/*fs=*/0x20000080, /*dir=*/0x20000180,
/*flags=MS_REC*/ 0x4000, /*opts=*/0x20000e00, /*chdir=*/2,
/*size=*/0xc2d, /*img=*/0x200001c0);
break;
case 3:
memcpy((void*)0x20000080, "./file1\000", 8);
res =
syscall(__NR_openat, /*fd=*/0xffffff9c, /*file=*/0x20000080ul,
/*flags=O_SYNC|O_DIRECT|O_CREAT|O_RDWR*/ 0x105042, /*mode=*/0);
if (res != -1)
r[0] = res;
break;
case 4:
syscall(__NR_mmap, /*addr=*/0x20001000ul, /*len=*/0x1000ul,
/*prot=PROT_WRITE*/ 2ul, /*flags=MAP_FIXED|MAP_SHARED*/ 0x11ul,
/*fd=*/r[0], /*offset=*/0ul);
break;
case 5:
syscall(__NR_read, /*fd=*/r[0], /*buf=*/0x20000400ul, /*count=*/0x1000ul);
break;
case 6:
memcpy((void*)0x20000000, "./file1\000", 8);
syscall(__NR_creat, /*file=*/0x20000000ul,
/*mode=S_IROTH|S_IWGRP|S_IWUSR*/ 0x94ul);
break;
case 7:
syscall(__NR_ioctl, /*fd=*/-1, /*cmd=*/0xc0185879, /*arg=*/0ul);
break;
}
}
int main(void)
{
syscall(__NR_mmap, /*addr=*/0x1ffff000ul, /*len=*/0x1000ul, /*prot=*/0ul,
/*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/-1,
/*offset=*/0ul);
syscall(__NR_mmap, /*addr=*/0x20000000ul, /*len=*/0x1000000ul,
/*prot=PROT_WRITE|PROT_READ|PROT_EXEC*/ 7ul,
/*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/-1,
/*offset=*/0ul);
syscall(__NR_mmap, /*addr=*/0x21000000ul, /*len=*/0x1000ul, /*prot=*/0ul,
/*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/-1,
/*offset=*/0ul);
setup_sysctl();
const char* reason;
(void)reason;
if ((reason = setup_802154()))
printf("the reproducer may not work as expected: 802154 injection setup "
"failed: %s\n",
reason);
for (procid = 0; procid < 5; procid++) {
if (fork() == 0) {
use_temporary_dir();
loop();
}
}
sleep(1000000);
return 0;
}