// https://syzkaller.appspot.com/bug?id=d5346cf7f8dfa39e8f25b5b085dfec6cf6bb288e
// autogenerated by syzkaller (https://github.com/google/syzkaller)
#define _GNU_SOURCE
#include <dirent.h>
#include <endian.h>
#include <errno.h>
#include <fcntl.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/stat.h>
#include <sys/syscall.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <time.h>
#include <unistd.h>
#include <linux/loop.h>
#ifndef __NR_getegid
#define __NR_getegid 177
#endif
#ifndef __NR_lsetxattr
#define __NR_lsetxattr 6
#endif
#ifndef __NR_memfd_create
#define __NR_memfd_create 279
#endif
#ifndef __NR_mmap
#define __NR_mmap 222
#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 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;
}
//% 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 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, loopfd = -1, 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) {
memset(loopname, 0, sizeof(loopname));
snprintf(loopname, sizeof(loopname), "/dev/loop%llu", procid);
if (setup_loop_device(data, size, loopname, &loopfd) == -1)
return -1;
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) {
ioctl(loopfd, LOOP_CLR_FD, 0);
close(loopfd);
}
errno = err;
return res;
}
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");
}
static void execute_one(void);
#define WAIT_FLAGS __WALL
static void loop(void)
{
int iter = 0;
for (;; iter++) {
reset_loop();
int pid = fork();
if (pid < 0)
exit(1);
if (pid == 0) {
setup_test();
execute_one();
exit(0);
}
int status = 0;
uint64_t start = current_time_ms();
for (;;) {
if (waitpid(-1, &status, WNOHANG | WAIT_FLAGS) == pid)
break;
sleep_ms(1);
if (current_time_ms() - start < 5000)
continue;
kill_and_wait(pid, &status);
break;
}
}
}
uint64_t r[1] = {0xffffffffffffffff};
void execute_one(void)
{
intptr_t res = 0;
res = syscall(__NR_getegid);
if (res != -1)
r[0] = res;
memcpy((void*)0x20000100, "ext4\000", 5);
memcpy((void*)0x20000200, "./file1\000", 8);
*(uint32_t*)0x20000280 = r[0];
sprintf((char*)0x20000284, "0x%016llx", (long long)r[0]);
*(uint16_t*)0x20000296 = r[0];
memcpy(
(void*)0x20000298,
"\xca\x42\xad\x87\xb1\x1b\xb3\xb2\x50\x7e\x03\x12\x9a\x43\x5e\x7c\x99\x10"
"\x4f\x0c\xd5\x07\x00\x00\x00\x04\x6f\x94\x45\x63\x10\x55\xf2\x8a\x4e\x67"
"\x77\xe9\x70\x47\xe5\x80\x7d\xb4\x99\x6b\x10\x20\x8d\x04\x45\x4e\xa6\x54"
"\x88\x8b\xf7\x54\x95\x69\x45\x96\x16\x77\xb3\x48\xd3\x34\x78\xb3\xd8\xf7"
"\x0e\xac\x43\x9f\x50\x11\x7f\xf9\x2b\xea\x81\x07\x0b\xba\x59\xcc\xec\x17"
"\xe7\xd1\x82\xea\x9f\xdf\xde\x2b\x94\xe8\x26\xd2\x44\x92\xfd\x7f\x89\x83"
"\x92\x59\x47\xdc\x2b\x35\x79\x43\x62\x2c\x9f\xea\xa4\x35\x12\xf4\xaf\xed"
"\x56\xe4\x01\x0e\x25\x43\x16\x6d\xfc\x76\xe5\xea\xaa\x01\xa6\x5f\x10\x5a"
"\x20\xfd\xcd\x2d\xc9\x95\xc2\xa8\xf4\x9e\x54\x09\x3b\x00\xdf\x3a\xe4\x9c"
"\xbb\x07\xdb\x66\x9e\x4a\x36\x74\xc0\xa6\x39\x7c\xa5\x94\x87\x37\x55\x02"
"\x7d\xeb\x72\xb0\x94\xa2\x95\x53\xf6\x74\xe5\xa4\x4c\x59\x7f\x04\x73\xf4"
"\x96\x84\x71\x9c\x94\x45\x83\x9a\x59\xa0\x9e\x1c\x13\x61\xd7\x2b\x8a\x1d"
"\xd1\x63\xee\xcd\x03\xbd\x21\x8b\xa8\x80\x48\x2b\x17\x33\xef\x3f\x91\xcb"
"\xd4\x27\x96\xbd\xeb\x13\xd6\x3c\x3e\xad\xec\xb3\xdf\xe8\x3f\x1d\x88\xb8"
"\xb7\xfb\x05\x3e\xed\x7e\x74\x2b\xff\xf2\x69\xa5\xc1\x60\x70\xd4\xde\x1d"
"\x19\x8d\x2f\xdc\xfa\x40\x4f\xc9\xe6\xdf\x20\x25\x78\xe9\x62\x54\x47\x94"
"\xe7\x7c\x24\x25\xf7\x3f\xcd\x3d\x0c\xd1\xd4\xff\xbc\x4e\xc0\x75\x4e\x94"
"\x6a\xdf\xf5\xe9\xe8\x3f\xfc\x58\x61\x26\xde\x12\xee\x3a\x2b\x1e\x34\x7c"
"\xbf\x59\x8c\x20\x64\x8b\xfc\x3f\xa3\x86\x87\x57\x5c\xb8\x46\x09\x68\x94"
"\x90\x03\xbd\x44\xb8\x51\x1d\xd9\x53\xcf\xd9\xee\xf7\xb0\xcf\x14\x9f\x77"
"\x74\x1a\xbf\xf4\x71\x03\xa5\x0a\xc1\xef\xb3\x9e\xba\x52\x8a\x63\xcc\xa0"
"\x32\x9e\xf5\xc2\x24\x7e\xfc\x16\x85\x7a\xd9\x82\x55\x69\x3a\x11\x14\x9d"
"\xde\x8f\xed\x62\x62\x3d\x07\xd3\x57\xb0\xc1\x25\x1f\x9c\x4f\x74\x92\xc9"
"\xe5\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00",
427);
*(uint16_t*)0x20000443 = r[0];
memcpy(
(void*)0x20000e00,
"\x78\x9c\xec\xdd\xdf\x6b\x5c\x59\x1d\x00\xf0\xef\xbd\xc9\x64\x93\x36\x6b"
"\x66\x55\x64\x5d\x70\x77\x71\x57\xd2\x45\x3b\x93\x6c\x6c\x1b\x44\xda\x0a"
"\xa2\x4f\x05\xb5\xbe\xc7\x98\x4c\x42\xc8\x24\x13\x32\x93\xda\x84\xa2\x29"
"\xfe\x01\x82\x88\x0a\x3e\xf9\xe4\x8b\xe0\x1f\x20\x48\xff\x04\x11\x0a\xfa"
"\x2e\x2a\x8a\x68\xab\x8f\xda\x2b\x33\x73\xa3\x4d\x32\x93\xa4\x66\x92\xe9"
"\x4e\x3e\x1f\x38\xb9\xe7\xdc\x5f\xdf\x73\x2e\x99\x33\xf7\xce\x3d\xdc\x1b"
"\xc0\x85\xf5\x76\x44\xdc\x8e\x88\xa1\x88\x78\x2f\x22\x26\xf2\xf9\x69\x9e"
"\xe6\x9a\x85\xdd\xf6\x7a\x4f\x9f\x3c\x58\x68\xa6\x24\xb2\xec\xee\xdf\x92"
"\x48\xf2\x79\x7b\xfb\x6a\x96\x87\x23\xe2\x72\x7b\x93\x18\x8d\x88\xaf\x7d"
"\x39\xe2\x9b\xc9\xe1\xb8\xf5\xed\x9d\xd5\xf9\x6a\xb5\xb2\x99\x97\xcb\x8d"
"\xb5\x8d\x72\x7d\x7b\xe7\xea\xca\xda\xfc\x72\x65\xb9\xb2\x3e\x33\x33\x7d"
"\x7d\xf6\xc6\xec\xb5\xd9\xa9\x2c\x77\xaa\x76\x16\x23\xe2\xe6\x17\xff\xf4"
"\xc3\xef\xfd\xec\x4b\x37\x7f\xf5\x99\x6f\xfd\x7e\xee\x2f\x57\xbe\xdd\xac"
"\xd6\xe7\x3f\xd6\xae\x77\x44\x2c\x9c\x2a\x40\x17\xed\x7d\x17\x5a\xc7\x62"
"\x4f\xf3\x18\x6d\x9e\x45\xb0\x3e\x18\xca\xdb\x53\x18\x7a\x81\x8d\xc6\xce"
"\xb0\x42\x00\x00\x1c\xa9\x79\x8e\xff\xe1\x88\xf8\x64\xeb\xfc\x7f\x22\x86"
"\x5a\x67\x73\x00\x00\x00\xc0\x20\xc9\x6e\x8d\xc7\xbf\x92\x88\x0c\x00\x00"
"\x00\x18\x58\x69\x44\x8c\x47\x92\x96\xf2\xb1\x00\xe3\x91\xa6\xa5\x52\x7b"
"\x0c\xef\x47\xe3\x52\x5a\xad\xd5\x1b\x9f\x5e\xaa\x6d\xad\x2f\x36\x97\x45"
"\x14\xa3\x90\x2e\xad\x54\x2b\x53\xf9\x58\xe1\x62\x14\x92\x66\x79\x3a\x1f"
"\x63\xbb\x57\x7e\xff\x40\x79\x26\x22\x5e\x8b\x88\x1f\x4c\x8c\xb5\xca\xa5"
"\x85\x5a\x75\xb1\xdf\x3f\x7e\x00\x00\x00\xc0\x05\x71\xf9\xad\xfd\xd7\xff"
"\xff\x9c\x48\x5b\x79\x00\x00\x00\x60\xc0\x14\xbb\x16\x00\x00\x00\x80\x41"
"\xe1\x92\x1f\x00\x00\x00\x06\x9f\xeb\x7f\x00\x00\x00\x18\x68\x5f\xb9\x73"
"\xa7\x99\xb2\xbd\xf7\x78\x2f\xde\xdb\xde\x5a\xad\xdd\xbb\xba\x58\xa9\xaf"
"\x96\xd6\xb6\x16\x4a\x0b\xb5\xcd\x8d\xd2\x72\xad\xb6\xdc\x7a\x66\xdf\xda"
"\x71\xfb\xab\xd6\x6a\x1b\x9f\x8d\xf5\xad\xfb\xe5\x46\xa5\xde\x28\xd7\xb7"
"\x77\xe6\xd6\x6a\x5b\xeb\x8d\xb9\x95\x7d\xaf\xc0\x06\x00\x00\x00\xce\xd1"
"\x6b\x6f\x3d\xfa\x5d\x12\x11\xbb\x9f\x1b\x6b\xa5\xc8\x9f\x03\x08\xb0\xcf"
"\x1f\xfb\x5d\x01\xa0\x97\x86\xfa\x5d\x01\xa0\x6f\x86\xfb\x5d\x01\xa0\x6f"
"\x0a\xc7\xae\xa1\x87\x80\x41\x97\x1c\xb3\xbc\xeb\xe0\x9d\x5f\xf7\xbe\x2e"
"\x00\x00\xc0\xd9\x98\xfc\xf8\xe1\xfb\xff\x23\xf9\xb2\xe3\x7f\x1b\x00\x3e"
"\xc8\x8c\xf5\x01\x80\x8b\xc7\xdd\x3d\xb8\xb8\x0a\x46\x00\xc2\x85\xf7\xa1"
"\xf6\xe4\x95\x6e\xcb\x4f\x7f\xff\x3f\xcb\x5e\xb8\x52\x00\x00\x40\x4f\x8d"
"\xb7\x52\x92\x96\xf2\x7b\x81\xe3\x91\xa6\xa5\x52\xc4\xab\xad\xd7\x02\x14"
"\x92\xa5\x95\x6a\x65\x2a\xbf\x3e\xf8\xed\x44\xe1\x95\x66\x79\xba\xb5\x65"
"\x72\xec\x98\x61\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
"\x00\x00\x00\x00\x00\xa0\x2d\xcb\x92\xc8\x00\x00\x00\x80\x81\x16\x91\xfe"
"\x39\x69\x3d\xcd\x3f\x62\x72\xe2\xdd\xf1\xfd\xbf\x0e\x1c\x78\xeb\xd7\x4f"
"\xee\xfe\xe8\xfe\x7c\xa3\xb1\x39\x1d\x31\x92\xfc\x7d\xa2\x39\x6b\x24\x22"
"\x1a\x3f\xce\xe7\xbf\x9f\x79\x25\x00\x00\x00\x00\xbc\x04\xda\xd7\xe9\xf9"
"\x74\xba\xdf\xb5\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
"\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
"\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
"\x00\x00\x00\x00\x00\x60\xd0\x3c\x7d\xf2\x60\x61\x2f\x9d\x67\xdc\xbf\x7e"
"\x21\x22\x8a\x9d\xe2\x0f\xc7\x68\x6b\x3a\x1a\x85\x88\xb8\xf4\x8f\x24\x86"
"\x9f\xdb\x2e\x89\x88\xa1\x1e\xc4\xdf\x7d\x18\x11\xaf\x77\x8a\x9f\xc4\xb3"
"\x2c\xcb\x8a\x79\x2d\x3a\xc5\x1f\x3b\xe3\xf8\xc5\xd6\xa1\xe9\x1c\x3f\x8d"
"\x88\xcb\x3d\x88\x0f\x17\xd9\xa3\x66\xff\x73\xbb\xd3\xe7\x2f\x8d\xb7\x5b"
"\xd3\xce\x9f\xbf\xe1\x3c\x9d\x56\xf7\xfe\x2f\xfd\x6f\xff\x37\xd4\xa5\xff"
"\x79\xf5\x84\x31\xde\x78\xfc\x8b\x72\xd7\xf8\x0f\x23\xde\x18\xee\xdc\xff"
"\xec\xc5\x4f\xda\xf1\x93\x38\x10\xff\x9d\x13\xc6\xff\xc6\xd7\x77\x76\xba"
"\x2d\xcb\x7e\x1a\x31\xd9\xf1\xfb\x27\xd9\x17\xab\xdc\x58\xdb\x28\xd7\xb7"
"\x77\xae\xae\xac\xcd\x2f\x57\x96\x2b\xeb\x33\x33\xd3\xd7\x67\x6f\xcc\x5e"
"\x9b\x9d\x2a\x2f\xad\x54\x2b\xf9\xdf\x8e\x31\xbe\xff\x89\x5f\x3e\x3b\xaa"
"\xfd\x97\xba\xc4\x2f\xee\x6f\xff\xa1\xe3\xff\xee\x09\xdb\xff\xef\xc7\xf7"
"\x9f\x7c\xa4\x9d\x2d\x74\x8a\x7f\xe5\x9d\xce\xdf\xbf\xaf\x77\x89\x9f\xe6"
"\xdf\x7d\x9f\xca\xf3\xcd\xe5\x93\x7b\xf9\xdd\x76\xfe\x79\x6f\xfe\xfc\x37"
"\x6f\x1e\xd5\xfe\xc5\x2e\xed\x1f\x3d\xa6\xfd\x57\x4e\xd8\xfe\xf7\xbe\xfa"
"\xdd\x3f\x9c\x70\x55\x00\xe0\x1c\xd4\xb7\x77\x56\xe7\xab\xd5\xca\xe6\x11"
"\x99\xd1\x13\xac\x73\xce\x99\x5b\x2f\x47\x35\x64\x7a\x95\xc9\xbe\xd3\xfe"
"\x7f\x3c\xdd\x7e\x4e\xb9\xf9\xa1\x4c\x76\x9a\xcd\x87\xa3\x07\xd5\x18\x79"
"\x81\xcf\x69\x6f\x33\xfd\xec\x95\x00\x00\x80\xb3\xf0\xbf\x93\xfe\x7e\xd7"
"\x04\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x2e\xae"
"\xff\xf3\x09\x61\xa3\x11\x71\xe2\x95\x0f\xc6\xdc\xed\x4f\x53\x01\x00\x00"
"\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
"\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
"\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
"\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
"\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
"\x00\x00\x8e\xf4\x9f\x00\x00\x00\xff\xff\xdb\xae\xd6\x23",
1274);
syz_mount_image(/*fs=*/0x20000100, /*dir=*/0x20000200, /*flags=*/0x2000000,
/*opts=*/0x20000280, /*chdir=*/1, /*size=*/0x4fa,
/*img=*/0x20000e00);
memcpy((void*)0x20000180, "./file0\000", 8);
memcpy((void*)0x200001c0, "trusted.overlay.upper\000", 22);
*(uint8_t*)0x200013c0 = 0;
*(uint8_t*)0x200013c1 = 0xfb;
*(uint8_t*)0x200013c2 = 1;
*(uint8_t*)0x200013c3 = 0;
*(uint8_t*)0x200013c4 = 0;
memcpy((void*)0x200013c5,
"\x95\xb4\x60\x99\x93\x92\x8c\xb8\x19\x48\x9b\x12\xaa\x5e\xe1\x3e",
16);
memcpy(
(void*)0x200013d5,
"\x31\x30\x87\x92\x99\xa7\x3d\xeb\x1f\x6b\x9d\xc1\x3c\x86\xc1\xf4\x3b\xcc"
"\xe0\xab\x08\x4f\x90\xc5\xca\xb3\xd3\xeb\xd1\x96\x80\x05\xdf\x06\xe1\x64"
"\x63\xd4\x03\xa5\x82\x7d\x3d\x70\xc1\x46\xb0\x6b\x57\xa2\x3a\x93\x83\x32"
"\x41\xc4\xf9\x9b\x1b\x92\xe2\xc5\xd8\xc8\xc1\xc2\x30\xac\x11\xc7\x6d\xf5"
"\x15\xdf\x95\x8d\xc1\xbf\x5d\x05\xbf\x7c\xb0\x8c\x71\x89\x71\xb4\xe0\xd6"
"\x2e\xab\xa0\x32\x9b\x91\x5c\xd5\xea\x4b\x63\x29\x84\x73\x3e\x42\xd1\x12"
"\x25\x6f\xfa\xb0\x37\xab\x6c\x4e\x4a\x48\xa2\x6a\x22\x50\x98\xb8\xcb\x37"
"\x14\xd1\xe7\x81\xc6\xe9\x2c\x50\xc5\x7c\x0d\x46\x2b\xdb\xcb\x15\xe1\x99"
"\x2e\xb6\xd8\x56\x41\x6e\x4b\x3e\x8b\x70\x1f\x90\x91\x91\x2d\x22\xa0\x61"
"\x51\x39\x8b\xe0\x44\xe9\x23\x83\xab\xac\x47\x33\x3a\x7b\x88\x85\x41\x95"
"\x03\x56\x55\x3c\x35\x40\xea\x70\x03\x24\x76\xb5\x05\xbf\x10\xa6\x28\x19"
"\x1b\x72\x2e\x17\x5f\x40\x2b\xa2\x66\x34\x74\xa4\x1a\x97\xfb\x12\x3e\x9c"
"\xbd\xba\x2d\x48\x6f\x52\xfa\xdc\xa2\x16\xd8\x35\x67\xe7\xa1\xee\xc0\x82"
"\x4d\x3e\x33\x40\x1f\x9f\xbb\x52\x3b\x2b\x1d\x89\x0c\x6e\xe9\xaa\xbf\xb0"
"\x18\x10\x55\x7e\x9e\x76\x5e\xbf\x09\x06\xaa\x77\xdd\x34\x44\x4c\x70\x98"
"\x87\x31\x8d\x93\xed\xa9\x00\x80\x62\x49\x64\x3d\x98\x1a\x70\xec\xec\x2b"
"\x05\x64\x48\x66\xcb\x53\xaf\x41\x76\xe6\x00\x50\x68\x05\x55\x93\xac\x32"
"\x94\x67\xb3\x4f\xf6\x77\x0d\x5f\x02\x43\xaf\xbc\xb3\x32\x0d\x4a\x1d\xd7"
"\xaa\xa5\x7f\x2c\x62\x5b\xc4\xb1\xa4\x24\x3b\x8c\x8a\xeb\x4a\xab\xf1\x22"
"\xcb\x9c\xa8\xe3\x5d\xa9\xf0\xdb\x32\xe7\xe2\x06\xea\xb0\x68\x8d\xff\xa6"
"\x06\xf7\xa4\x5d\x1b\x5b\xe9\x99\x4a\x8f\xaf\xac\x85\x6c\x2b\x78\xfd\x7e"
"\x65\xb5\x18\x7c\x01\x8e\x02\x69\x5e\xb5\xfb\x3b\x46\xdd\x72\x3c\x8a\x5f"
"\x5d\xca\xc0\xc4\x6c\xa9\xec\x0b\x22\x49\xab\xe5\x4d\x94\x3a\x98\xbf\x1c"
"\xb0\xe5\xa3\xf3\x3a\x38\x33\x42\xa3\xbf\x3c\x41\xcc\x42\xf7\xa8\xe2\xa6"
"\xe3\xd0\xaa\x4b\x81\x9e\x50\x35\xe5\xce\xa6\x3c\x56\xa7\x6b\x68\x81\xa1"
"\xb5\x44\xd0\x58\xb7\xa7\x33\x21\xe0\x15\x77\x9a\x3d\x49\x12\xe3\xa9\x1f"
"\x2a\xd7\xfd\x82\x3f\xf6\x38\x7a\xba\xfc\x8d\x8e\x62\x53\x7f\x4c\x7d\x40"
"\x9a\x9d\x50\xc5\x8c\x94\x8b\xca\x16\x09\x28\xd8\xab\x9a\xb5\x80\x6f\xd8"
"\x83\x9e\xe3\xd3\x08\x82\x84\x32\xcf\x69\x53\x8f\xbd\xa2\xaa\x2a\x66\x1d"
"\xcc\x0f\x25\xc6\x00\xa2\x88\x9e\x59\xa3\x74\x63\xc6\x7c\x38\x14\xd0\x52"
"\xe5\x11\x44\xae\x01\x3c\x18\x22\x64\x82\xf4\xdb\x3b\x55\xfd\x18\x48\xcd"
"\x4a\x97\x06\xb3\xb5\x4a\x14\xf4\xd4\xe2\x17\x64\xba\xb6\x01\xdc\x69\x0e"
"\x55\x84\x7e\x6c\x16\x1e\x6d\x1d\x99\x02\x31\xc3\x39\x44\x70\x14\xcb\xa1"
"\xdc\xaa\x8f\xc4\xed\x1a\x3f\x0c\xb9\xa5\xf0\xfc\xb8\x6c\xbd\x11\x7e\xe3"
"\x52\x2e\x0d\xeb\x07\x45\xa4\x9a\x30\xb2\xd0\x6e\xb3\xc2\xb1\xf3\xff\xf8"
"\x52\xc9\x5a\xda\xe2\x75\xf4\x9c\x61\xc9\xa0\x2b\xf4\x13\x81\x88\x12\xae"
"\xf5\x3b\xee\x26\xfc\xc8\xe7\x58\x31\x3d\xfd\xe1\xe8\x3c\xff\x40\x79\x8e"
"\xce\x6c\x24\x35\x93\x82\x87\x9d\x56\xfd\xd2\x8f\x3e\xc0\xc5\xe3\x22\xfc"
"\x57\x1d\x21\x6f\x62\x53\x7f\xac\xc2\xa5\xf7\x84\x96\x6b\xec\x6c\x75\x93"
"\x3a\x3e\x7c\xcd\x1c\x0e\x74\x05\x11\x8e\x78\xb6\xe1\xcb\xab\x51\x57\xa3"
"\x14\xed\xf0\x00\x8d\x73\xc3\xd9\xf7\xcb\xda\xac\x4d\x8c\x6b\x25\xca\xd8"
"\xcd\xd6\x6f\xf0\x53\x0b\xc9\x6a\xd1\x03\x90\x9c\x95\xbc\x45\x3b\xaa\xc1"
"\xbb\xc9\x7e\x25\x0d\x6f\x56\x1d\x25\xb8\xec\xb6\x6a\x7a\x11\x37\x7b\xfa"
"\x6a\x92\x5c\x2f\x4a\x2a\x06\x42\xfd\x0d\xb7\x10\xff\x56\xe5\x12\xdf\xe0"
"\x6b\x51\x8d\xd0\x33\x9b\x7c\x05\x61\x99\x45\x81\xbd\x8f\xd5\xf5\x93\x98"
"\x54\xfb\xf4\x4c\x46\xb9\x53\x1b\xd3\x13\x35\xa2\x1f\xb1\x96\x69\x9d\x6c"
"\x6b\x42\xaa\xec\xad\xdf\xe9\x1c\x31\xb6\xe3\x95\x65\x64\xa3\xee\xf7\x21"
"\x7c\x24\x60\x91\xb0\x9b\xf6\x23\x8d\x57\xc7\x59\xb3\x49\xd4\x8e\xc2\x0f"
"\x8b\x29\x60\xe6\xb0\x3a\x3b\xcb\x4f\x83\x59\x2a\x3d\x78\x2d\x46\xff\xaa"
"\xba\x7e\x64\xb5\x78\x72\x29\xa0\x60\x15\x87\x1c\xde\xd5\xd2\xfb\x28\x7c"
"\x47\xae\x39\xc9\xb0\x5a\x2a\x4b\x7b\x4a\x2f\x0d\xfb\x34\x92\xa7\x62\x77"
"\xff\x1f\x0d\xf7\x7e\x9d\xe2\xb0\xfa\xf5\xa3\x4e\x14\xa7\x87\x68\x69\x62"
"\x9b\x3d\x3f\x73\x91\x5f\xc2\x1d\x6d\xd1\x48\x48\x1f\x9e\x2b\xe6\xa3\x23"
"\x8c\x13\xd8\x89\x05\x04\x76\x4d\x04\xe7\x39\xc1\x4b\xfe\x7b\x3b\xc8\x08"
"\xc7\x5f\x2c\x84\xce\x2b\x79\xa1\x7b\xa0\x7d\x0f\x0c\xdd\x6c\xf9\x48\xac"
"\xe0\x5a\x0d\x72\xa3\xeb\x3b\xd4\x51\x35\x15\x81\x2a\x37\x77\x0e\x50\xd8"
"\xcf\xb7\xe4\xef\x1f\x1b\xd6\xa1\x9f\x03\x02\x90\x1f\x40\x81\x38\xaf\x7f"
"\x74\xdd\x03\x5f\x89\xbb\x66\xd9\xb2\x4e\xc6\x07\x5f\xcf\x87\x15\xc5\x93"
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"\x9c\x25\xbc\x36\x88\x7a\xe7\xd8\x1f\xf8\x58\x78\xf6\x34\x58\x7f\x2b\xe8"
"\x46\x86\x9c\x8a\x93\x2b\xe0\xc0\x59\x2c\x99\x0f\x90\xf5\x7b\xb9\x6b\x71"
"\x6a\x85\xc4\xcc\x6d\xad\x9c\x7e\xb2\xf7\x25\x0d\xc0\x47\x11\x83\x4c\x96"
"\xed\xb0\xe9\x76\xcf\x9a\x83\x74\x2b\xb4\x73\x34\x43\xf0\xd7\x2c\x6d\x1d"
"\xf6\xd6\x99\x4f\xd1\xf7\x93\x04\x70\x61\xe2\x56\x7c\x48\xdf\xef\x46\xc8"
"\xc1\x00\xaa\x82\xbc\x39\x0b\xf4\xa7\xd4\xdb\xb5\xc1\x53\x6c\x87\x05\x41"
"\x01\x90\x3e\xcb\x11\xb8\x4e\xa8\x7f\xef\x00\x60\x82\x08\xf9\xeb\x7b\xa7"
"\x19\xcf\x44\x8c\x55\x83\x55\xd0\x4f\xf7\xcc\x05\x7b\x4d\x07\x40\xc8\x42"
"\x61\xec\x27\xf8\xef\x98\x83\x25\x93\xc5\xc8\xf9\x46\x33\x33\x71\x11"
"\x80",
3564);
syscall(__NR_lsetxattr, /*path=*/0x20000180ul, /*name=*/0x200001c0ul,
/*val=*/0x200013c0ul, /*size=*/0xe01ul, /*flags=*/0ul);
memcpy((void*)0x20000000, "./file0\000", 8);
memcpy((void*)0x20000080, "trusted.overlay.upper\000", 22);
syscall(__NR_lsetxattr, /*path=*/0x20000000ul, /*name=*/0x20000080ul,
/*val=*/0ul, /*size=*/0ul, /*flags=*/2ul);
}
int main(void)
{
syscall(__NR_mmap, /*addr=*/0x1ffff000ul, /*len=*/0x1000ul, /*prot=*/0ul,
/*flags=*/0x32ul, /*fd=*/-1, /*offset=*/0ul);
syscall(__NR_mmap, /*addr=*/0x20000000ul, /*len=*/0x1000000ul, /*prot=*/7ul,
/*flags=*/0x32ul, /*fd=*/-1, /*offset=*/0ul);
syscall(__NR_mmap, /*addr=*/0x21000000ul, /*len=*/0x1000ul, /*prot=*/0ul,
/*flags=*/0x32ul, /*fd=*/-1, /*offset=*/0ul);
loop();
return 0;
}