// https://syzkaller.appspot.com/bug?id=f95b5ff2a219684ecc266ffa24cf3d08839739e0
// autogenerated by syzkaller (https://github.com/google/syzkaller)
#define _GNU_SOURCE
#include <dirent.h>
#include <endian.h>
#include <errno.h>
#include <fcntl.h>
#include <pthread.h>
#include <sched.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/epoll.h>
#include <sys/ioctl.h>
#include <sys/mman.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/uio.h>
#include <sys/wait.h>
#include <time.h>
#include <unistd.h>
#include <linux/capability.h>
#include <linux/futex.h>
#include <linux/loop.h>
#include <linux/rfkill.h>
#ifndef __NR_ioctl
#define __NR_ioctl 29
#endif
#ifndef __NR_memfd_create
#define __NR_memfd_create 279
#endif
#ifndef __NR_mmap
#define __NR_mmap 222
#endif
#ifndef __NR_openat
#define __NR_openat 56
#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;
}
#define MAX_FDS 30
#define BTPROTO_HCI 1
#define ACL_LINK 1
#define SCAN_PAGE 2
typedef struct {
uint8_t b[6];
} __attribute__((packed)) bdaddr_t;
#define HCI_COMMAND_PKT 1
#define HCI_EVENT_PKT 4
#define HCI_VENDOR_PKT 0xff
struct hci_command_hdr {
uint16_t opcode;
uint8_t plen;
} __attribute__((packed));
struct hci_event_hdr {
uint8_t evt;
uint8_t plen;
} __attribute__((packed));
#define HCI_EV_CONN_COMPLETE 0x03
struct hci_ev_conn_complete {
uint8_t status;
uint16_t handle;
bdaddr_t bdaddr;
uint8_t link_type;
uint8_t encr_mode;
} __attribute__((packed));
#define HCI_EV_CONN_REQUEST 0x04
struct hci_ev_conn_request {
bdaddr_t bdaddr;
uint8_t dev_class[3];
uint8_t link_type;
} __attribute__((packed));
#define HCI_EV_REMOTE_FEATURES 0x0b
struct hci_ev_remote_features {
uint8_t status;
uint16_t handle;
uint8_t features[8];
} __attribute__((packed));
#define HCI_EV_CMD_COMPLETE 0x0e
struct hci_ev_cmd_complete {
uint8_t ncmd;
uint16_t opcode;
} __attribute__((packed));
#define HCI_OP_WRITE_SCAN_ENABLE 0x0c1a
#define HCI_OP_READ_BUFFER_SIZE 0x1005
struct hci_rp_read_buffer_size {
uint8_t status;
uint16_t acl_mtu;
uint8_t sco_mtu;
uint16_t acl_max_pkt;
uint16_t sco_max_pkt;
} __attribute__((packed));
#define HCI_OP_READ_BD_ADDR 0x1009
struct hci_rp_read_bd_addr {
uint8_t status;
bdaddr_t bdaddr;
} __attribute__((packed));
#define HCI_EV_LE_META 0x3e
struct hci_ev_le_meta {
uint8_t subevent;
} __attribute__((packed));
#define HCI_EV_LE_CONN_COMPLETE 0x01
struct hci_ev_le_conn_complete {
uint8_t status;
uint16_t handle;
uint8_t role;
uint8_t bdaddr_type;
bdaddr_t bdaddr;
uint16_t interval;
uint16_t latency;
uint16_t supervision_timeout;
uint8_t clk_accurancy;
} __attribute__((packed));
struct hci_dev_req {
uint16_t dev_id;
uint32_t dev_opt;
};
struct vhci_vendor_pkt_request {
uint8_t type;
uint8_t opcode;
} __attribute__((packed));
struct vhci_pkt {
uint8_t type;
union {
struct {
uint8_t opcode;
uint16_t id;
} __attribute__((packed)) vendor_pkt;
struct hci_command_hdr command_hdr;
};
} __attribute__((packed));
#define HCIDEVUP _IOW('H', 201, int)
#define HCISETSCAN _IOW('H', 221, int)
static int vhci_fd = -1;
static void rfkill_unblock_all()
{
int fd = open("/dev/rfkill", O_WRONLY);
if (fd < 0)
exit(1);
struct rfkill_event event = {0};
event.idx = 0;
event.type = RFKILL_TYPE_ALL;
event.op = RFKILL_OP_CHANGE_ALL;
event.soft = 0;
event.hard = 0;
if (write(fd, &event, sizeof(event)) < 0)
exit(1);
close(fd);
}
static void hci_send_event_packet(int fd, uint8_t evt, void* data,
size_t data_len)
{
struct iovec iv[3];
struct hci_event_hdr hdr;
hdr.evt = evt;
hdr.plen = data_len;
uint8_t type = HCI_EVENT_PKT;
iv[0].iov_base = &type;
iv[0].iov_len = sizeof(type);
iv[1].iov_base = &hdr;
iv[1].iov_len = sizeof(hdr);
iv[2].iov_base = data;
iv[2].iov_len = data_len;
if (writev(fd, iv, sizeof(iv) / sizeof(struct iovec)) < 0)
exit(1);
}
static void hci_send_event_cmd_complete(int fd, uint16_t opcode, void* data,
size_t data_len)
{
struct iovec iv[4];
struct hci_event_hdr hdr;
hdr.evt = HCI_EV_CMD_COMPLETE;
hdr.plen = sizeof(struct hci_ev_cmd_complete) + data_len;
struct hci_ev_cmd_complete evt_hdr;
evt_hdr.ncmd = 1;
evt_hdr.opcode = opcode;
uint8_t type = HCI_EVENT_PKT;
iv[0].iov_base = &type;
iv[0].iov_len = sizeof(type);
iv[1].iov_base = &hdr;
iv[1].iov_len = sizeof(hdr);
iv[2].iov_base = &evt_hdr;
iv[2].iov_len = sizeof(evt_hdr);
iv[3].iov_base = data;
iv[3].iov_len = data_len;
if (writev(fd, iv, sizeof(iv) / sizeof(struct iovec)) < 0)
exit(1);
}
static bool process_command_pkt(int fd, char* buf, ssize_t buf_size)
{
struct hci_command_hdr* hdr = (struct hci_command_hdr*)buf;
if (buf_size < (ssize_t)sizeof(struct hci_command_hdr) ||
hdr->plen != buf_size - sizeof(struct hci_command_hdr))
exit(1);
switch (hdr->opcode) {
case HCI_OP_WRITE_SCAN_ENABLE: {
uint8_t status = 0;
hci_send_event_cmd_complete(fd, hdr->opcode, &status, sizeof(status));
return true;
}
case HCI_OP_READ_BD_ADDR: {
struct hci_rp_read_bd_addr rp = {0};
rp.status = 0;
memset(&rp.bdaddr, 0xaa, 6);
hci_send_event_cmd_complete(fd, hdr->opcode, &rp, sizeof(rp));
return false;
}
case HCI_OP_READ_BUFFER_SIZE: {
struct hci_rp_read_buffer_size rp = {0};
rp.status = 0;
rp.acl_mtu = 1021;
rp.sco_mtu = 96;
rp.acl_max_pkt = 4;
rp.sco_max_pkt = 6;
hci_send_event_cmd_complete(fd, hdr->opcode, &rp, sizeof(rp));
return false;
}
}
char dummy[0xf9] = {0};
hci_send_event_cmd_complete(fd, hdr->opcode, dummy, sizeof(dummy));
return false;
}
static void* event_thread(void* arg)
{
while (1) {
char buf[1024] = {0};
ssize_t buf_size = read(vhci_fd, buf, sizeof(buf));
if (buf_size < 0)
exit(1);
if (buf_size > 0 && buf[0] == HCI_COMMAND_PKT) {
if (process_command_pkt(vhci_fd, buf + 1, buf_size - 1))
break;
}
}
return NULL;
}
#define HCI_HANDLE_1 200
#define HCI_HANDLE_2 201
#define HCI_PRIMARY 0
#define HCI_OP_RESET 0x0c03
static void initialize_vhci()
{
int hci_sock = socket(AF_BLUETOOTH, SOCK_RAW, BTPROTO_HCI);
if (hci_sock < 0)
exit(1);
vhci_fd = open("/dev/vhci", O_RDWR);
if (vhci_fd == -1)
exit(1);
const int kVhciFd = 202;
if (dup2(vhci_fd, kVhciFd) < 0)
exit(1);
close(vhci_fd);
vhci_fd = kVhciFd;
struct vhci_vendor_pkt_request vendor_pkt_req = {HCI_VENDOR_PKT, HCI_PRIMARY};
if (write(vhci_fd, &vendor_pkt_req, sizeof(vendor_pkt_req)) !=
sizeof(vendor_pkt_req))
exit(1);
struct vhci_pkt vhci_pkt;
if (read(vhci_fd, &vhci_pkt, sizeof(vhci_pkt)) != sizeof(vhci_pkt))
exit(1);
if (vhci_pkt.type == HCI_COMMAND_PKT &&
vhci_pkt.command_hdr.opcode == HCI_OP_RESET) {
char response[1] = {0};
hci_send_event_cmd_complete(vhci_fd, HCI_OP_RESET, response,
sizeof(response));
if (read(vhci_fd, &vhci_pkt, sizeof(vhci_pkt)) != sizeof(vhci_pkt))
exit(1);
}
if (vhci_pkt.type != HCI_VENDOR_PKT)
exit(1);
int dev_id = vhci_pkt.vendor_pkt.id;
pthread_t th;
if (pthread_create(&th, NULL, event_thread, NULL))
exit(1);
int ret = ioctl(hci_sock, HCIDEVUP, dev_id);
if (ret) {
if (errno == ERFKILL) {
rfkill_unblock_all();
ret = ioctl(hci_sock, HCIDEVUP, dev_id);
}
if (ret && errno != EALREADY)
exit(1);
}
struct hci_dev_req dr = {0};
dr.dev_id = dev_id;
dr.dev_opt = SCAN_PAGE;
if (ioctl(hci_sock, HCISETSCAN, &dr))
exit(1);
struct hci_ev_conn_request request;
memset(&request, 0, sizeof(request));
memset(&request.bdaddr, 0xaa, 6);
*(uint8_t*)&request.bdaddr.b[5] = 0x10;
request.link_type = ACL_LINK;
hci_send_event_packet(vhci_fd, HCI_EV_CONN_REQUEST, &request,
sizeof(request));
struct hci_ev_conn_complete complete;
memset(&complete, 0, sizeof(complete));
complete.status = 0;
complete.handle = HCI_HANDLE_1;
memset(&complete.bdaddr, 0xaa, 6);
*(uint8_t*)&complete.bdaddr.b[5] = 0x10;
complete.link_type = ACL_LINK;
complete.encr_mode = 0;
hci_send_event_packet(vhci_fd, HCI_EV_CONN_COMPLETE, &complete,
sizeof(complete));
struct hci_ev_remote_features features;
memset(&features, 0, sizeof(features));
features.status = 0;
features.handle = HCI_HANDLE_1;
hci_send_event_packet(vhci_fd, HCI_EV_REMOTE_FEATURES, &features,
sizeof(features));
struct {
struct hci_ev_le_meta le_meta;
struct hci_ev_le_conn_complete le_conn;
} le_conn;
memset(&le_conn, 0, sizeof(le_conn));
le_conn.le_meta.subevent = HCI_EV_LE_CONN_COMPLETE;
memset(&le_conn.le_conn.bdaddr, 0xaa, 6);
*(uint8_t*)&le_conn.le_conn.bdaddr.b[5] = 0x11;
le_conn.le_conn.role = 1;
le_conn.le_conn.handle = HCI_HANDLE_2;
hci_send_event_packet(vhci_fd, HCI_EV_LE_META, &le_conn, sizeof(le_conn));
pthread_join(th, NULL);
close(hci_sock);
}
//% 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, 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 mount_cgroups(const char* dir, const char** controllers, int count)
{
if (mkdir(dir, 0777)) {
return;
}
char enabled[128] = {0};
int i = 0;
for (; i < count; i++) {
if (mount("none", dir, "cgroup", 0, controllers[i])) {
continue;
}
umount(dir);
strcat(enabled, ",");
strcat(enabled, controllers[i]);
}
if (enabled[0] == 0) {
if (rmdir(dir) && errno != EBUSY)
exit(1);
return;
}
if (mount("none", dir, "cgroup", 0, enabled + 1)) {
if (rmdir(dir) && errno != EBUSY)
exit(1);
}
if (chmod(dir, 0777)) {
}
}
static void mount_cgroups2(const char** controllers, int count)
{
if (mkdir("/syzcgroup/unified", 0777)) {
return;
}
if (mount("none", "/syzcgroup/unified", "cgroup2", 0, NULL)) {
if (rmdir("/syzcgroup/unified") && errno != EBUSY)
exit(1);
return;
}
if (chmod("/syzcgroup/unified", 0777)) {
}
int control = open("/syzcgroup/unified/cgroup.subtree_control", O_WRONLY);
if (control == -1)
return;
int i;
for (i = 0; i < count; i++)
if (write(control, controllers[i], strlen(controllers[i])) < 0) {
}
close(control);
}
static void setup_cgroups()
{
const char* unified_controllers[] = {"+cpu", "+memory", "+io", "+pids"};
const char* net_controllers[] = {"net", "net_prio", "devices", "blkio",
"freezer"};
const char* cpu_controllers[] = {"cpuset", "cpuacct", "hugetlb", "rlimit"};
if (mkdir("/syzcgroup", 0777)) {
return;
}
mount_cgroups2(unified_controllers,
sizeof(unified_controllers) / sizeof(unified_controllers[0]));
mount_cgroups("/syzcgroup/net", net_controllers,
sizeof(net_controllers) / sizeof(net_controllers[0]));
mount_cgroups("/syzcgroup/cpu", cpu_controllers,
sizeof(cpu_controllers) / sizeof(cpu_controllers[0]));
write_file("/syzcgroup/cpu/cgroup.clone_children", "1");
write_file("/syzcgroup/cpu/cpuset.memory_pressure_enabled", "1");
}
static void setup_cgroups_loop()
{
int pid = getpid();
char file[128];
char cgroupdir[64];
snprintf(cgroupdir, sizeof(cgroupdir), "/syzcgroup/unified/syz%llu", procid);
if (mkdir(cgroupdir, 0777)) {
}
snprintf(file, sizeof(file), "%s/pids.max", cgroupdir);
write_file(file, "32");
snprintf(file, sizeof(file), "%s/memory.low", cgroupdir);
write_file(file, "%d", 298 << 20);
snprintf(file, sizeof(file), "%s/memory.high", cgroupdir);
write_file(file, "%d", 299 << 20);
snprintf(file, sizeof(file), "%s/memory.max", cgroupdir);
write_file(file, "%d", 300 << 20);
snprintf(file, sizeof(file), "%s/cgroup.procs", cgroupdir);
write_file(file, "%d", pid);
snprintf(cgroupdir, sizeof(cgroupdir), "/syzcgroup/cpu/syz%llu", procid);
if (mkdir(cgroupdir, 0777)) {
}
snprintf(file, sizeof(file), "%s/cgroup.procs", cgroupdir);
write_file(file, "%d", pid);
snprintf(cgroupdir, sizeof(cgroupdir), "/syzcgroup/net/syz%llu", procid);
if (mkdir(cgroupdir, 0777)) {
}
snprintf(file, sizeof(file), "%s/cgroup.procs", cgroupdir);
write_file(file, "%d", pid);
}
static void setup_cgroups_test()
{
char cgroupdir[64];
snprintf(cgroupdir, sizeof(cgroupdir), "/syzcgroup/unified/syz%llu", procid);
if (symlink(cgroupdir, "./cgroup")) {
}
snprintf(cgroupdir, sizeof(cgroupdir), "/syzcgroup/cpu/syz%llu", procid);
if (symlink(cgroupdir, "./cgroup.cpu")) {
}
snprintf(cgroupdir, sizeof(cgroupdir), "/syzcgroup/net/syz%llu", procid);
if (symlink(cgroupdir, "./cgroup.net")) {
}
}
static void setup_common()
{
if (mount(0, "/sys/fs/fuse/connections", "fusectl", 0, 0)) {
}
}
static void setup_binderfs()
{
if (mkdir("/dev/binderfs", 0777)) {
}
if (mount("binder", "/dev/binderfs", "binder", 0, NULL)) {
}
}
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 = 128 << 20;
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();
initialize_vhci();
sandbox_common();
drop_caps();
if (unshare(CLONE_NEWNET)) {
}
write_file("/proc/sys/net/ipv4/ping_group_range", "0 65535");
setup_binderfs();
loop();
exit(1);
}
#define FS_IOC_SETFLAGS _IOW('f', 2, long)
static void remove_dir(const char* dir)
{
int iter = 0;
DIR* dp = 0;
retry:
while (umount2(dir, MNT_DETACH | UMOUNT_NOFOLLOW) == 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, MNT_DETACH | UMOUNT_NOFOLLOW) == 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, MNT_DETACH | UMOUNT_NOFOLLOW))
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, MNT_DETACH | UMOUNT_NOFOLLOW))
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 setup_loop()
{
setup_cgroups_loop();
}
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();
setup_cgroups_test();
write_file("/proc/self/oom_score_adj", "1000");
if (symlink("/dev/binderfs", "./binderfs")) {
}
}
static void close_fds()
{
for (int fd = 3; fd < MAX_FDS; fd++)
close(fd);
}
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)
{
int i, call, thread;
for (call = 0; call < 3; 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 (call == 1)
break;
event_timedwait(&th->done, 50 + (call == 0 ? 4000 : 0));
break;
}
}
for (i = 0; i < 100 && __atomic_load_n(&running, __ATOMIC_RELAXED); i++)
sleep_ms(1);
close_fds();
}
static void execute_one(void);
#define WAIT_FLAGS __WALL
static void loop(void)
{
setup_loop();
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 (;;) {
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;
}
remove_dir(cwdbuf);
}
}
void execute_call(int call)
{
switch (call) {
case 0:
memcpy((void*)0x20000380, "hfs\000", 4);
memcpy((void*)0x20000300, "./file0\000", 8);
memcpy((void*)0x20000080, "file_umask", 10);
*(uint8_t*)0x2000008a = 0x3d;
sprintf((char*)0x2000008b, "%023llo", (long long)0x401);
*(uint8_t*)0x200000a2 = 0x2c;
memcpy((void*)0x200000a3, "uid", 3);
*(uint8_t*)0x200000a6 = 0x3d;
sprintf((char*)0x200000a7, "0x%016llx", (long long)0);
*(uint8_t*)0x200000b9 = 0x2c;
memcpy((void*)0x200000ba, "iocharset", 9);
*(uint8_t*)0x200000c3 = 0x3d;
memcpy((void*)0x200000c4, "macturkish", 10);
*(uint8_t*)0x200000ce = 0x2c;
memcpy((void*)0x200000cf, "quiet", 5);
*(uint8_t*)0x200000d4 = 0x2c;
memcpy((void*)0x200000d5, "dir_umask", 9);
*(uint8_t*)0x200000de = 0x3d;
sprintf((char*)0x200000df, "%023llo", (long long)0x5fffffff);
*(uint8_t*)0x200000f6 = 0x2c;
memcpy((void*)0x200000f7, "quiet", 5);
*(uint8_t*)0x200000fc = 0x2c;
*(uint8_t*)0x200000fd = 0;
memcpy(
(void*)0x20000600,
"\x78\x9c\xec\xdd\xcf\x6a\x13\x51\x14\xc7\xf1\xdf\xbd\x89\x1a\x6d\xa9"
"\xd3\x3f\x22\xb8\xac\x16\x5c\x49\x5b\x37\xe2\x46\x90\x3c\x84\x2b\x51"
"\x9b\x08\xc5\x50\x41\x2b\xa8\x2b\x71\x2d\x3e\x80\x7b\x5f\xc1\x87\x70"
"\xa3\xf8\x02\xba\x72\xe5\x03\x64\x37\x72\xef\xdc\x98\x49\x3a\x7f\xd2"
"\xea\xe4\xda\xf6\xfb\x81\x0c\x57\xe7\x9e\xcc\x39\x9d\x99\xcc\x3d\x81"
"\x52\x01\x38\xb5\xee\x76\xbf\x7f\xbc\xf9\xd3\xbd\x8c\xd4\x52\x4b\xd2"
"\x6d\xc9\x4a\xea\x48\x6d\x49\x97\x74\xb9\xf3\x62\x6f\x7f\x77\x7f\xd0"
"\xef\x55\xbd\x51\xcb\x47\xb8\x97\x51\x16\x69\x0e\xcc\xd9\xd9\xeb\x17"
"\x85\xba\x38\x1f\x11\x24\xee\x5f\x6d\x2d\xe6\xff\x0f\xcd\x48\xd3\x34"
"\xfd\x11\x3b\x09\x44\xe7\xef\xfe\x02\x56\x3a\x17\xee\x4e\xbf\xbf\x33"
"\xf7\xcc\x9a\xf1\x26\x76\x02\x91\x99\xa1\x86\x7a\xa9\xa5\xd8\x79\x00"
"\x00\xe2\x0a\xcf\x7f\x1b\x9e\xf3\x8b\x61\xfd\x6e\xad\xb4\x11\x1e\xfb"
"\x27\xea\xf9\x3f\x8c\x9d\x40\xe3\xd2\xca\xbd\xb9\xe7\xbf\xef\xb2\x52"
"\xe3\xce\xef\x45\xbf\x6b\xdc\xef\xf9\x16\xce\xed\xb7\xa3\x2e\xf1\x28"
"\x99\x9c\x55\x76\x65\x4d\x2c\x30\x4d\x5d\x57\xe9\x73\xb1\xe7\x1f\xef"
"\x0e\xfa\x37\x76\x9e\x0e\x7a\x56\x6f\x75\x27\xc8\x4d\x5b\xf3\xdb\x5e"
"\x76\xe9\x8e\xd4\x64\xbb\x5e\xd0\x9b\x56\x38\x7a\xed\x0b\xbe\x86\x33"
"\xae\x86\xed\x92\xfc\x57\xff\xed\x11\xeb\x99\xcf\xe6\xab\xb9\x6f\x12"
"\x7d\x50\xef\xcf\xfa\xaf\x9d\x1a\x77\x9a\xfc\x99\x4a\xa6\xce\x54\x96"
"\xff\x66\xf9\x3b\xfa\x2a\x13\x37\x4b\xe1\x63\xe3\x40\x95\xcb\xfe\x20"
"\x57\xc2\x11\x82\x9a\x2a\x3b\xc5\x1d\x89\x46\x57\xd4\xb2\x26\xbf\x20"
"\x48\xea\xf2\xf4\x51\x2b\x53\x51\x59\x75\x5b\x35\x51\xab\x85\x51\xdb"
"\x35\x51\x6b\xd3\x51\xe3\xab\xb9\x3c\xb2\x69\xe6\xbd\xb9\x67\xd6\xf5"
"\x4b\x9f\xd4\xcd\xad\xff\xad\xfb\x69\x6f\x68\x96\x3b\xd3\xcd\xf1\x33"
"\xc3\x95\x51\x59\x4f\xdb\xcf\x4c\x66\x48\xcc\x1e\xaa\x0c\xfc\x9d\x77"
"\x7a\xa4\x5b\x5a\x7a\xfe\xea\xf5\x93\xd6\x60\xd0\x7f\xe6\x06\x0f\x19"
"\x30\x60\x50\x3f\xe8\x7e\x91\xfe\x83\x34\x1a\x1d\xc4\xfe\x80\xc2\x3c"
"\x8c\x4f\x7a\xec\x4c\x10\x89\x5b\x77\x99\xac\xff\xcb\xf5\x2b\x9b\xbe"
"\x45\x72\x9b\xa4\x62\x9d\x5e\xdd\x64\x4e\x76\x40\x5b\x25\x1d\xd0\x8a"
"\xdf\x5e\x38\x54\x07\xb7\x50\xde\xc1\xcd\xda\x73\x5d\xbd\x2e\x5d\x9b"
"\xfd\x88\x49\xc8\xf3\x84\x30\x5d\x7d\xd3\x03\xbe\xff\x07\x00\x00\x00"
"\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x38\x6e\xe6\xf1\xeb\x04"
"\xb1\x6b\x04\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
"\x00\x00\xe0\xb8\xe3\xef\xff\x02\xa7\xd7\xef\x00\x00\x00\xff\xff\x8f"
"\x15\x80\x92",
581);
syz_mount_image(0x20000380, 0x20000300, 0x1008003, 0x20000080, 0x21, 0x245,
0x20000600);
break;
case 1:
memcpy((void*)0x200001c0, "./file0\000", 8);
syscall(__NR_openat, 0xffffff9c, 0x200001c0ul, 0ul, 0ul);
break;
case 2:
*(uint64_t*)0x20000100 = 0;
*(uint64_t*)0x20000108 = 0;
*(uint64_t*)0x20000110 = 0;
*(uint64_t*)0x20000118 = 0;
memcpy(
(void*)0x20000120,
"\x4f\x8f\x06\x11\x02\xb5\x8c\x59\x9f\xf4\x6a\x08\xc1\xcc\x52\x42\x74"
"\x77\xfa\x3a\x40\x53\xbe\x11\xad\x69\x9c\x9a\x66\x3f\x0c\x55\x9e\x1f"
"\x06\x13\x7d\x2d\xd6\x0f\x10\x31\x0d\x73\x42\xf5\xa4\x77\x79\xb7\xc8"
"\xe2\x18\x88\x1d\x50\x1b\xff\xda\x1b\x43\x1b\x68\xfa\xbe\x80\x35\x8e"
"\x13\x20\xc3\x23\xe3\xc1\x03\xc0\x3c\x7a\x21\x05\x81\xb0\x02\x16\x2d"
"\x29\x15\xa3\x57\x23\xe2\x1e\x48\x4f\x7d\xba\xe3\xbb\xf4\xfc\x0b\xbf"
"\x20\xef\xf9\xf8\xc9\x87\x0a\x85\xe6\xaa\x0c\x2f\x95\x67\x1a\x93\xeb"
"\xd9\x0b\x66\xa8\xe5\x2c\x7f\x2b\x8e\x22\x61\xe7\x9c\x3f\xcd\x36\xf7"
"\x23\xdb\x3a\xd8\x09\xef\x1b\xfd\x5a\x40\x6a\xdb\xca\x58\xc6\x50\x02"
"\xed\x41\x68\xb4\x1a\xb5\xbc\x63\x16\x76\xd9\xb8\x56\x6a\x7e\xd2\xb3"
"\xba\x48\xbd\x67\xfc\x67\xc2\x43\xd6\x03\x5e\xcb\xb2\xf4\x60\x0a\x7e"
"\xbd\xb6\xa2\x4b\xf3\x3b\xec\x4e\x2d\xed\xf2\x2c\x4e\x20\x92\xc7\x2b"
"\x21\x22\x3d\xd7\xfb\x03\xdc\x01\x98\xe9\x31\xb6\x7c\xfe\x91\x61\x73"
"\x91\xa1\x35\x2d\x9f\xb4\x17\xa4\x0a\x7d\xbb\x64\xbd\x9e\x18\x64\x3b"
"\x64\xa5\x66\xbb\xa8\x38\x1d\xcf\x2a\xc2\x39\x6e\x97\x8d\x37\x79\x32"
"\x8c\x5e\x98\xb3\xc5\x29\xf5\x49\x8e\x5f\x5d\x86\xe2\x47\x1a\xbd\xee"
"\xfa\xd1\xb6\x5f\x70\x94\xa2\x16\x1e\x0d\xc3\xb1\xe6\x4c\x83\x3e\x95"
"\xa7\x6a\x5e\x9b\xb4\x93\x4f\x96\x30\x6a\x60\x73\x7e\x79\xc9\xa7\x4b"
"\xc5\xc4\xcf\x93\xee\xf4\x63\x26\x81\x40\x7d\x08\x47\xd6\x38\xd8\x4f"
"\xe5\x30\xfc\xcb\xad\xf5\xca\x98\xac\x21\x48\xcf\xde\x06\x0c\xf1\x7d"
"\x37\x92\x48\x71\x7a\xe7\x4c\xe8\xab\xdc\xc6\x35\xfb\xb5\x78\x3a\xdd"
"\x10\xac\xd1\x1e\x15\xc4\x1d\x15\xd3\x08\x75\x09\x73\x51\xe4\xb0\x08"
"\xa1\xa0\x61\x40\x99\x97\x67\xd8\x8a\x97\xfd\x85\x4f\x11\x2d\x79\x19"
"\x92\x07\x69\x9d\xd7\xb8\x7e\x4f\xa6\x99\x29\x1b\x22\x1a\x29\xd6\xd5"
"\xa9\xd8\xbb\x0c\x5b\x07\x3a\x48\x65\xf6\xb5\x2b\xdb\x9b\xcc\xc5\x65"
"\x64\x33\x25\xc9\xf7\x3d\x35\xaa\x09\x55\x58\xaa\xf1\x1d\x3a\x2e\x48"
"\x83\x53\x82\xac\x93\xbb\xf3\xac\xc3\x79\xf3\x87\x22\xc5\x2b\x08\x5e"
"\x4d\xd3\x24\x9c\xd1\x2e\x3c\xdf\x59\x5a\x5b\xc6\xf8\x33\xd5\xe3\x21"
"\x66\xf8\xb0\xfe\x48\xca\x10\xd0\xbb\x2f\x85\xac\x60\x6b\x99\xc2\x15"
"\x6c\x49\x3e\x7d\x9c\xf2\xdc\x8f\x90\x9e\xe4\xae\x70\xbd\x92\x69\xae"
"\x4b\xba\x4c\xbf\xa8\x92\x74\x40\xa2\x8d\x5f\xa0\x19\xd9\x4c\x11\x78"
"\xdd\x58\x04\xce\x50\x44\xe5\xb7\xf5\xae\x0e\xb5\x8b\x5b\xa0\x62\x11"
"\xa2\x10\x79\xf3\x41\xc3\x9e\x1a\x5f\xb8\x70\x36\xcd\x07\x54\xd4\xba"
"\xa1\x90\x2c\x6f\x9c\x89\x5d\xa9\xdb\xda\xcd\x06\xd8\x51\xe8\x0d\xc3"
"\x50\x90\xdc\xa9\x1b\x1e\xb3\xbb\x09\x0d\x53\xce\x16\x4c\xd6\xc5\xe5"
"\x07\x8b\x13\x08\x16\xad\x49\x95\x0d\x9f\xa3\x3b\x1f\x6d\x0d\x1d\xf4"
"\x32\xc3\xeb\xe7\x66\xe5\xef\x0d\xb4\xfe\x1f\x3b\xad\xf5\xf0\xb9\x8d"
"\x9b\x21\x5a\x3b\xba\xaf\x2b\x5c\x22\x28\xa7\x94\x10\x87\xce\x11\x86"
"\x17\xb1\xd2\x6f\xb4\xdc\x8c\x0c\x4f\x03\x4e\xc5\x67\x67\x9a\x4b\xca"
"\x35\x91\xe2\x84\xe0\xf3\x20\x79\x0d\x26\xcf\xb7\x2e\x42\xde\x4c\xba"
"\x97\xad\x98\xf8\x86\x7d\x0d\xbc\xf8\x67\x0c\xe2\x54\xf1\x3f\x23\xe9"
"\x48\x82\x7c\x75\x47\xb2\x21\xf1\x9e\x06\x60\x18\xcb\xe0\x16\x32\xf8"
"\xd0\x8e\xd9\x68\x56\x9f\xeb\x88\x13\xdd\x0c\xdf\x61\x2e\x2c\xd3\xed"
"\x8b\xcc\xfe\xb3\xbf\x33\x15\xd8\x1e\x26\x91\x52\xe9\xd4\x6e\xae\xec"
"\x10\x82\xf6\x0a\x3f\xb2\xa6\xda\x29\x81\x7f\x87\x99\xa1\xd3\x4d\xdc"
"\xca\x29\xad\x54\xf4\x76\xab\x33\xfa\x0e\x70\x97\x69\xb8\x7b\xfa\x66"
"\x15\x0d\xfe\x22\xc3\x07\x5d\x27\x34\x02\x98\xde\x5e\xd0\x7c\x97\x05"
"\xb3\xca\xa7\x31\xbc\x42\x70\x33\xd7\x88\x75\x39\xd7\xad\x99\x77\x5d"
"\x14\x7f\x12\x12\xdc\x72\x7a\x1b\x19\xf1\x1a\xe3\xc7\x6f\x3c\x81\x74"
"\x6f\xb9\x34\x37\xed\x58\xee\x1a\x47\xf3\x3f\x09\x6a\x7d\xb8\xa4\xb5"
"\xfc\x6d\x60\x07\x6c\x55\x8c\x4a\x48\x40\x87\x85\x5b\x74\xe4\x8a\x8b"
"\x0e\xfc\xd5\xa2\x67\x73\x33\x2c\xdd\x27\x5c\x91\x36\xf0\x24\x6c\x8d"
"\x89\xd5\xda\x09\xf5\x2a\x96\xd5\x5a\x37\x3d\xb4\xe3\x18\x54\x8b\x6d"
"\x21\xeb\xb8\x8a\xa6\x1b\x23\xa9\xd6\xeb\xd0\xf2\x59\xd5\x57\x61\xff"
"\x7a\x7b\xd7\x53\xb0\x31\xe5\xd4\xe2\x88\xdc\x9e\xab\x97\x64\x65\xf8"
"\xc0\xff\x2a\x8f\xa5\x29\xc2\xff\x7f\x19\x18\x4c\xef\xc1\x8b\x4f\xc7"
"\xa1\xe3\x95\x44\xd5\x4d\xb2\x08\x72\x71\xa1\xea\xf3\x01\xc2\x5d\x39"
"\xad\x65\x98\x4f\x7e\xbc\xbc\x94\x42\x82\xb7\x68\xb9\x6b\x42\x57\xcc"
"\x8f\x38\x66\x64\x00\x53\x24\x3a\x9a\x41\x56\x26\x71\x68\x97\xca\xab"
"\xa6\x0a\x1b\xa4\x4c\xe8\x4e\x38\xf2\x47\xfd\x66\xfb\xc1\x90\x7a\x0a"
"\xf3\x4b\xca\x5b\x01",
1025);
memcpy(
(void*)0x20000521,
"\x76\xf5\x47\xe5\xec\xcd\xc6\x9d\x44\x1a\x00\xd3\xb7\xa9\x4c\x20\x9c"
"\x50\x34\x3d\xb9\x1b\xbc\x3b\x27\x8d\x22\x09\xba\xc1\x9b\xb7\x8f\x80"
"\xec\x60\x0b\xf7\x2b\x31\xf4\x19\x69\x33\xef\xa9\x00\x8c\x17\x09\x69"
"\x67\xad\x6b\x96\xa0\xcf\x5e\x97\xc0\x28\x25\x50\xcd\x41\x62\x1e\xda"
"\x86\xb3\xb3\x2f\x50\x10\xad\xba\x1d\x67\x4b\x48\xc5\xd5\xd2\x06\x5e"
"\xd8\xda\x5d\xed\x54\x25\xc9\x78\x4d\x47\x70\xae\x03\x94\xcb\xf6\xa6"
"\x24\x94\x52\xff\x63\xb3\x78\xb3\xdb\xcf\xf3\xb3\xca\x50\x75\x29\xbf"
"\x87\x7d\x8a\x6d\x34\x47\x6a\x17\xae\x51\x28\xf0\x3a\xc2\x65\x60\x64"
"\xdc\xae\x0c\xf8\x56\x73\x44\xc4\x28\xf6\x7e\x94\x94\x65\x74\x21\xfb"
"\xfb\xbe\xf9\x93\x43\xea\xb1\x00\x7d\x1d\x2d\x36\xe1\x61\x03\xff\xfc"
"\x20\xb9\x4d\xc1\xa5\x36\xab\x6c\x7c\xa6\x0a\x95\x37\x2e\x48\x65\xe1"
"\x6d\x8c\x37\x0c\x7e\xb3\xad\x73\xb5\xac\x91\xf1\x49\x43\xf4\x89\x60"
"\xfe\x62\x2a\x2f\x86\x15\x5b\xfe\x18\xe9\xd9\xc2\xba\x78\x25\x50\xcd"
"\x1c\x11\x93\x3d\x7f\x6b\x3e\xb1\x0b\xa9\x1c\x44\xb6\x68\x4f\x19\x8c"
"\xa2\x34\x8c\x21\x5b\x03\x4a\x1b\xab\x9f\xc6\x83\x29\xcb\x1b\xa0\x7d"
"\x7b\xd0\x94\xb8\xfe\xa8\x5a\x88\x00\x88\x00\x07\xc3\xc2\x0e\xd7\x33"
"\x73\xb6\x19\x31\x2d\x6f\x49\x3c\xe4\xf6\x3b\xf2\x71\xbd\x0a\x64\xeb"
"\x7d\x67\x67\x35\x8a\xaa\x96\xa4\x7d\x2d\x0d\x91\xce\x9e\xa7\x96\xf0"
"\xae\x19\x34\xf9\x83\xf8\x30\xa8\xd8\x9c\x49\xc8\xc7\x27\x1e\x6a\xf3"
"\x3d\xd5\x5b\x58\xa6\x22\xc5\x68\xd6\x72\xcf\xff\x79\x4f\xc1\xea\xb8"
"\x7b\x5a\x00\x90\xf9\x79\xbd\x01\xae\x93\x12\x7e\x43\xd4\x46\x6a\x6f"
"\x17\x53\xd4\xc4\x03\x62\x24\xec\x3b\x54\xa5\x97\xe3\x06\x2d\xaa\x54"
"\x77\xa1\x2c\x58\xb3\x2e\x5b\xaa\x70\x1e\x40\x27\x8a\x53\xc5\xae\x00"
"\x6d\x20\xf5\xe8\x81\xb3\x59\x7c\xf4\x21\xcb\x43\x0a\x2b\xdc\x49\x27"
"\xd3\x19\x30\x81\x67\x0f\xa8\x7c\xb1\x80\xe4\x98\xdc\x88\xa4\x7d\x8c"
"\x79\xb3\x63\xaf\x8f\xb1\x4b\xb9\x6d\xd3\xaa\x78\x7f\x22\xe8\x88\x5b"
"\x70\x05\x44\xd9\xd0\xa1\x0b\x4e\xd3\xf0\xda\x36\x72\x5f\x8a\xda\x9b"
"\xd2\x92\xf9\xc4\x95\x54\x8d\xb7\x68\xe0\x43\x67\x4b\x81\x80\xa8\x6d"
"\x78\x52\xee\x97\x50\x71\xcd\xe5\xa4\x33\x0c\x83\x98\xa6\x48\x18\xaa"
"\xa3\x74\x72\x92\xb8\xfa\x43\x91\x61\x3c\x8e\xf0\x27\x3f\x44\xed\xc5"
"\x24\x07\x9a\x84\xe1\x5b\x2d\xd9\xc1\xd5\x61\xc6\x03\x42\xe3\x67\x90"
"\x3e\x07\x20\x5b\x5a\xe1\x3e\x9f\x5d\x4e\x3b\x09\x79\x34\x64\xf8\xcb"
"\x34\x36\x13\x52\xde\x93\x08\x99\xbb\xa1\xb3\xd0\x34\xf3\x74\x72\x1e"
"\x57\xc0\xbf\x33\xc4\xc2\x10\xfa\xa4\xd1\x52\x47\x2b\x0f\xf5\xcd\x07"
"\x59\x46\xe4\xe0\x9f\x8d\x13\xd5\xf4\xc1\xea\x82\xba\x0f\x24\x85\x66"
"\xb4\xcd\x4f\x66\x4b\xf1\xed\x21\x6a\xcb\x51\x51\x76\x6f\x97\xa6\xd7"
"\x85\x42\xf7\x45\xaa\xfa\x4c\x74\xab\xfa\xb4\xaf\xcf\x78\x11\x00\x85"
"\x2c\x52\x7b\x62\xe7\x0c\x1d\xe5\x87\xf2\xe3\x25\x84\x43\x11\x24\xd5"
"\x86\x6c\xba\x95\x8c\xa3\xd7\x5b\x37\x87\x27\xaa\x8e\x38\xbf\x5c\x4e"
"\xcf\xcb\xb8\xb5\x11\xa6\x03\x27\xbe\x57\x40\xa5\xca\xbd\xdf\x0b\x99"
"\x38\x80\xd3\x4e\xe9\xb2\x58\x6e\x52\x84\x86\x43\x71\xb6\xe5\x92\xd2"
"\xb2\x43\x2c\xb0\xf6\x00\x5f\x4e\x4d\x39\xc9\x51\x9d\x14\x75\xe7\xec"
"\x0f\xe9\xb9\x20\xa8\xc4\x54\xd6\x9e\x49\x19\x99\xbe\xf0\xea\xf7\x0f"
"\xe2\x3c\xa9\xa8\x15\xbd\x44\xc8\x79\xce\x40\xa7\x44\xfa\x8e\x79\xff"
"\xe1\xbc\x16\x16\x8d\xce\x06\x61\x4a\x18\x55\x07\x7e\x57\xa0\xdc\x5b"
"\x94\x55\x75\xf0\xb0\xe6\x31\x24\xf2\x64\x3c\x8b\x11\xe1\x8d\x06\x92"
"\xfc\xd0\x73\x16\x2b\xec\xf0\x65\x08\x0a\x3a\x43\x33\x90\x7a\xf0\xe6"
"\x43\xeb\x7a\xd6\x08\xeb\xd2\x87\xe2\x51\xd8\x9b\x07\xdc\x5f\x94\x7f"
"\xe0\x90\x34\x2c\x3b\xb7\x56\xc2\x11\xe0\xf1\x80\xec\x45\x87\xb2\xf2"
"\x89\x95\x71\xca\xdd\xe0\x07\xc7\x62\xf3\xeb\xdf\xea\x60\x9c\x17\x29"
"\x0b\xa4\x61\x8f\x7f\x66\x11\x3d\xa0\x0f\x61\x68\xfd\x8b\xa3\xdc\x83"
"\x0f\x0f\x56\x50\xee\x4c\xf9\xb1\xe4\x78\xa3\x84\xc5\x2c\x88\xc8\xd4"
"\x47\xcf\x7f\xdc\x3c\xe6\xec\xbd\x32\xb5\x5f\xa0\x2d\x36\xdf\x47\x8a"
"\x30\xc2\xf6\xf9\x90\xf4\x9e\xec\x84\x2f\x89\xd3\xd4\x9e\x77\x0a\xa7"
"\xcd\xb6\x14\x92\x31\xd5\x6b\x9f\x82\x55\xf2\x1a\xe8\x64\x94\x17\x02"
"\x71\x95\x33\x8f\x28\xe0\xa6\x7d\x76\x7f\x42\xf9\x21\x24\xbd\x70\x04"
"\x12\xf6\x82\x82\xe2\xfb\x31\x9b\x43\x98\xee\xf5\x5a\xc4\x8b\xaa\x95"
"\x35\xd6\x2f\x68\x04\x9c\x97\x42\x54\x7a\xe3\x1e\xc8\x3e\x41\xcd\x9a"
"\x1a\x6a\x93\x29\x3e\xe9\xec\xdf\x2a\x64\xf7\x19\x06\xdf\xe5\xd2\x79"
"\xc2\x3b\xb9\x9e\xca\xe1\x01\x4e\xf3\x55\x18\x67\x7a\x5e\x2b\x0f\xe0"
"\x0e\x8a\x39\xc8\x97",
1025);
*(uint64_t*)0x20000928 = 0;
*(uint64_t*)0x20000930 = 0;
*(uint64_t*)0x20000938 = 0;
*(uint64_t*)0x20000940 = 0;
*(uint64_t*)0x20000948 = 0;
*(uint64_t*)0x20000950 = 0;
*(uint64_t*)0x20000958 = 0;
*(uint64_t*)0x20000960 = 0;
*(uint64_t*)0x20000968 = 0;
*(uint64_t*)0x20000970 = 0;
*(uint64_t*)0x20000978 = 0;
*(uint64_t*)0x20000980 = 0;
*(uint64_t*)0x20000988 = 0;
*(uint64_t*)0x20000990 = 0;
*(uint64_t*)0x20000998 = 0;
*(uint64_t*)0x200009a0 = 0;
*(uint64_t*)0x200009a8 = 0;
*(uint64_t*)0x200009b0 = 0;
*(uint64_t*)0x200009b8 = 0;
*(uint64_t*)0x200009c0 = 0;
*(uint64_t*)0x200009c8 = 0;
*(uint64_t*)0x200009d0 = 0;
*(uint64_t*)0x200009d8 = 0;
*(uint64_t*)0x200009e0 = 0;
*(uint64_t*)0x200009e8 = 0;
*(uint64_t*)0x200009f0 = 0;
*(uint64_t*)0x200009f8 = 0;
*(uint64_t*)0x20000a00 = 0;
*(uint64_t*)0x20000a08 = 0;
*(uint64_t*)0x20000a10 = 0;
*(uint64_t*)0x20000a18 = 0;
*(uint64_t*)0x20000a20 = 0;
*(uint64_t*)0x20000a28 = 0;
*(uint64_t*)0x20000a30 = 0;
*(uint64_t*)0x20000a38 = 0;
*(uint64_t*)0x20000a40 = 0;
*(uint64_t*)0x20000a48 = 0;
*(uint64_t*)0x20000a50 = 0;
*(uint64_t*)0x20000a58 = 0;
*(uint64_t*)0x20000a60 = 0;
*(uint64_t*)0x20000a68 = 0;
*(uint64_t*)0x20000a70 = 0;
*(uint64_t*)0x20000a78 = 0;
*(uint64_t*)0x20000a80 = 0;
*(uint64_t*)0x20000a88 = 0;
*(uint64_t*)0x20000a90 = 0;
*(uint64_t*)0x20000a98 = 0;
*(uint64_t*)0x20000aa0 = 0;
*(uint64_t*)0x20000aa8 = 0;
*(uint64_t*)0x20000ab0 = 0;
*(uint64_t*)0x20000ab8 = 0;
*(uint64_t*)0x20000ac0 = 0;
*(uint64_t*)0x20000ac8 = 0;
*(uint64_t*)0x20000ad0 = 0;
*(uint64_t*)0x20000ad8 = 0;
*(uint64_t*)0x20000ae0 = 0;
*(uint64_t*)0x20000ae8 = 0;
*(uint64_t*)0x20000af0 = 0;
*(uint64_t*)0x20000af8 = 0;
*(uint64_t*)0x20000b00 = 0;
*(uint64_t*)0x20000b08 = 0;
*(uint64_t*)0x20000b10 = 0;
*(uint64_t*)0x20000b18 = 0;
*(uint64_t*)0x20000b20 = 0;
syscall(__NR_ioctl, -1, 0xc0c09425, 0x20000100ul);
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);
setup_cgroups();
for (procid = 0; procid < 6; procid++) {
if (fork() == 0) {
use_temporary_dir();
do_sandbox_none();
}
}
sleep(1000000);
return 0;
}