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stress2: Added syzkaller reproducers

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This commit is contained in:
Peter Holm 2022-06-01 10:02:08 +02:00
parent 4d0adee4e6
commit e14e0a1632
3 changed files with 788 additions and 0 deletions
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324
tools/test/stress2/misc/syzkaller54.sh Executable file
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#!/bin/sh
# panic: td 0xfffffe014f7193a0 is not suspended
# cpuid = 5
# time = 1652003036
# KDB: stack backtrace:
# db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame 0xfffffe019a497c20
# vpanic() at vpanic+0x17f/frame 0xfffffe019a497c70
# panic() at panic+0x43/frame 0xfffffe019a497cd0
# thread_single() at thread_single+0x766/frame 0xfffffe019a497d40
# fork1() at fork1+0x1e1/frame 0xfffffe019a497da0
# sys_rfork() at sys_rfork+0xa4/frame 0xfffffe019a497e00
# amd64_syscall() at amd64_syscall+0x145/frame 0xfffffe019a497f30
# fast_syscall_common() at fast_syscall_common+0xf8/frame 0xfffffe019a497f30
# --- syscall (0, FreeBSD ELF64, nosys), rip = 0x82317b7da, rsp = 0x826544f48, rbp = 0x826544f70 ---
# KDB: enter: panic
# [ thread pid 17068 tid 104913 ]
# Stopped at kdb_enter+0x32: movq $0,0x12795f3(%rip)
# db> x/s version
# FreeBSD 14.0-CURRENT #0 main-n255381-cbbce42345c51: Sun May 8 09:55:50 CEST 2022
# pho@mercat1.netperf.freebsd.org:/usr/src/sys/amd64/compile/PHO
# db>
[ `uname -p` != "amd64" ] && exit 0
. ../default.cfg
cat > /tmp/syzkaller54.c <<EOF
// https://syzkaller.appspot.com/bug?id=346de481f8b814d103c440296a0adcb7ec6c46d4
// autogenerated by syzkaller (https://github.com/google/syzkaller)
// Reported-by: syzbot+9db4640d67478a0ced08@syzkaller.appspotmail.com
#define _GNU_SOURCE
#include <sys/types.h>
#include <errno.h>
#include <pthread.h>
#include <pwd.h>
#include <signal.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/endian.h>
#include <sys/syscall.h>
#include <sys/wait.h>
#include <time.h>
#include <unistd.h>
static unsigned long long procid;
static void kill_and_wait(int pid, int* status)
{
kill(pid, SIGKILL);
while (waitpid(-1, status, 0) != pid) {
}
}
static void sleep_ms(uint64_t ms)
{
usleep(ms * 1000);
}
static uint64_t current_time_ms(void)
{
struct timespec ts;
if (clock_gettime(CLOCK_MONOTONIC, &ts))
exit(1);
return (uint64_t)ts.tv_sec * 1000 + (uint64_t)ts.tv_nsec / 1000000;
}
static void thread_start(void* (*fn)(void*), void* arg)
{
pthread_t th;
pthread_attr_t attr;
pthread_attr_init(&attr);
pthread_attr_setstacksize(&attr, 128 << 10);
int i = 0;
for (; i < 100; i++) {
if (pthread_create(&th, &attr, fn, arg) == 0) {
pthread_attr_destroy(&attr);
return;
}
if (errno == EAGAIN) {
usleep(50);
continue;
}
break;
}
exit(1);
}
typedef struct {
pthread_mutex_t mu;
pthread_cond_t cv;
int state;
} event_t;
static void event_init(event_t* ev)
{
if (pthread_mutex_init(&ev->mu, 0))
exit(1);
if (pthread_cond_init(&ev->cv, 0))
exit(1);
ev->state = 0;
}
static void event_reset(event_t* ev)
{
ev->state = 0;
}
static void event_set(event_t* ev)
{
pthread_mutex_lock(&ev->mu);
if (ev->state)
exit(1);
ev->state = 1;
pthread_mutex_unlock(&ev->mu);
pthread_cond_broadcast(&ev->cv);
}
static void event_wait(event_t* ev)
{
pthread_mutex_lock(&ev->mu);
while (!ev->state)
pthread_cond_wait(&ev->cv, &ev->mu);
pthread_mutex_unlock(&ev->mu);
}
static int event_isset(event_t* ev)
{
pthread_mutex_lock(&ev->mu);
int res = ev->state;
pthread_mutex_unlock(&ev->mu);
return res;
}
static int event_timedwait(event_t* ev, uint64_t timeout)
{
uint64_t start = current_time_ms();
uint64_t now = start;
pthread_mutex_lock(&ev->mu);
for (;;) {
if (ev->state)
break;
uint64_t remain = timeout - (now - start);
struct timespec ts;
ts.tv_sec = remain / 1000;
ts.tv_nsec = (remain % 1000) * 1000 * 1000;
pthread_cond_timedwait(&ev->cv, &ev->mu, &ts);
now = current_time_ms();
if (now - start > timeout)
break;
}
int res = ev->state;
pthread_mutex_unlock(&ev->mu);
return res;
}
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 < 12; 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);
break;
}
}
for (i = 0; i < 100 && __atomic_load_n(&running, __ATOMIC_RELAXED); i++)
sleep_ms(1);
}
static void execute_one(void);
#define WAIT_FLAGS 0
static void loop(void)
{
int iter = 0;
for (;; iter++) {
int pid = fork();
if (pid < 0)
exit(1);
if (pid == 0) {
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[4] = {0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff,
0xffffffffffffffff};
void execute_call(int call)
{
intptr_t res = 0;
switch (call) {
case 0:
res = syscall(SYS_socket, 0x1cul, 1ul, 0x84);
if (res != -1)
r[0] = res;
break;
case 1:
syscall(SYS_connect, r[0], 0ul, 0ul);
break;
case 2:
res = syscall(SYS_socket, 0x1cul, 1ul, 0x84);
if (res != -1)
r[1] = res;
break;
case 3:
syscall(SYS_sendto, -1, 0ul, 0ul, 0ul, 0ul, 0ul);
break;
case 4:
syscall(SYS_dup2, r[1], -1);
break;
case 5:
res = syscall(SYS_dup2, -1, -1);
if (res != -1)
r[2] = res;
break;
case 6:
res = syscall(SYS_dup2, -1, r[2]);
if (res != -1)
r[3] = res;
break;
case 7:
syscall(SYS_sendmsg, r[3], 0ul, 0ul);
break;
case 8:
syscall(SYS_sendto, -1, 0ul, 0ul, 0ul, 0ul, 0ul);
break;
case 9:
memcpy((void*)0x20000100, "/dev/filemon\000", 13);
syscall(SYS_openat, 0xffffffffffffff9cul, 0x20000100ul, 0ul, 0ul);
break;
case 10:
syscall(SYS_rfork, 0x5000ul);
break;
case 11:
*(uint32_t*)0x20000080 = 0x13;
*(uint32_t*)0x20000084 = 0;
*(uint32_t*)0x20000088 = 0;
*(uint32_t*)0x2000008c = 0;
*(uint32_t*)0x20000090 = -1;
memset((void*)0x20000094, 0, 60);
syscall(SYS_procctl, 0ul, 0, 6ul, 0x20000080ul);
break;
}
}
int main(void)
{
syscall(SYS_mmap, 0x20000000ul, 0x1000000ul, 7ul, 0x1012ul, -1, 0ul);
for (procid = 0; procid < 4; procid++) {
if (fork() == 0) {
loop();
}
}
sleep(1000000);
return 0;
}
EOF
mycc -o /tmp/syzkaller54 -Wall -Wextra -O0 /tmp/syzkaller54.c -l pthread ||
exit 1
start=`date +%s`
while [ $((`date +%s` - start)) -lt 120 ]; do
(cd /tmp; timeout 3m ./syzkaller54)
done
rm -rf /tmp/syzkaller54 /tmp/syzkaller54.c /tmp/syzkaller54.core \
/tmp/syzkaller.??????
exit 0

197
tools/test/stress2/misc/syzkaller55.sh Executable file
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#!/bin/sh
# panic: Counter goes negative
# cpuid = 8
# time = 1653397881
# KDB: stack backtrace:
# db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame 0xfffffe014386fa40
# vpanic() at vpanic+0x17f/frame 0xfffffe014386fa90
# panic() at panic+0x43/frame 0xfffffe014386faf0
# sctp_sorecvmsg() at sctp_sorecvmsg+0xf8e/frame 0xfffffe014386fc10
# sctp_soreceive() at sctp_soreceive+0x196/frame 0xfffffe014386fe00
# soreceive() at soreceive+0x4b/frame 0xfffffe014386fe20
# soaio_process_sb() at soaio_process_sb+0x581/frame 0xfffffe014386feb0
# soaio_kproc_loop() at soaio_kproc_loop+0xa9/frame 0xfffffe014386fef0
# fork_exit() at fork_exit+0x80/frame 0xfffffe014386ff30
# fork_trampoline() at fork_trampoline+0xe/frame 0xfffffe014386ff30
# --- trap 0xc, rip = 0x8220e08da, rsp = 0x820a211b8, rbp = 0x820a211e0 ---
# KDB: enter: panic
# [ thread pid 78762 tid 931834 ]
# Stopped at kdb_enter+0x32: movq $0,0x1278fc3(%rip)
# db> x/s version
# FreeBSD 14.0-CURRENT #0 reap-n255780-cbbb27164fa: Tue May 24 13:42:53 CEST 2022
# pho@mercat1.netperf.freebsd.org:/var/tmp/deviant3/sys/amd64/compile/PHO
# db>
[ `uname -p` != "amd64" ] && exit 0
. ../default.cfg
cat > /tmp/syzkaller55.c <<EOF
// https://syzkaller.appspot.com/bug?id=ce7f451c017537296074d9203baaec292b311365
// autogenerated by syzkaller (https://github.com/google/syzkaller)
// Reported-by: syzbot+e256d42e9b390564530a@syzkaller.appspotmail.com
#define _GNU_SOURCE
#include <sys/types.h>
#include <pwd.h>
#include <signal.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/endian.h>
#include <sys/syscall.h>
#include <sys/wait.h>
#include <time.h>
#include <unistd.h>
static unsigned long long procid;
static void kill_and_wait(int pid, int* status)
{
kill(pid, SIGKILL);
while (waitpid(-1, status, 0) != pid) {
}
}
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 execute_one(void);
#define WAIT_FLAGS 0
static void loop(void)
{
int iter = 0;
for (;; iter++) {
int pid = fork();
if (pid < 0)
exit(1);
if (pid == 0) {
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[3] = {0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff};
void execute_one(void)
{
intptr_t res = 0;
res = syscall(SYS_socket, 0x1cul, 1ul, 0x84);
if (res != -1)
r[0] = res;
*(uint8_t*)0x20000000 = 0x1c;
*(uint8_t*)0x20000001 = 0x1c;
*(uint16_t*)0x20000002 = htobe16(0x4e23 + procid * 4);
*(uint32_t*)0x20000004 = 0;
memset((void*)0x20000008, 0, 16);
*(uint32_t*)0x20000018 = 0;
syscall(SYS_bind, r[0], 0x20000000ul, 0x1cul);
*(uint8_t*)0x20000080 = 0x1c;
*(uint8_t*)0x20000081 = 0x1c;
*(uint16_t*)0x20000082 = htobe16(0x4e23 + procid * 4);
*(uint32_t*)0x20000084 = 0;
*(uint64_t*)0x20000088 = htobe64(0);
*(uint64_t*)0x20000090 = htobe64(1);
*(uint32_t*)0x20000098 = 0;
syscall(SYS_connect, r[0], 0x20000080ul, 0x1cul);
*(uint32_t*)0x20000400 = r[0];
*(uint64_t*)0x20000408 = 0;
*(uint64_t*)0x20000410 = 0x20000040;
memset((void*)0x20000040, 27, 1);
*(uint64_t*)0x20000418 = 1;
*(uint32_t*)0x20000420 = 0;
*(uint32_t*)0x20000424 = 0;
*(uint64_t*)0x20000428 = 0;
*(uint32_t*)0x20000430 = 0;
*(uint32_t*)0x20000434 = 0;
*(uint64_t*)0x20000438 = 0;
*(uint64_t*)0x20000440 = 0;
*(uint64_t*)0x20000448 = 0;
*(uint32_t*)0x20000450 = 0;
*(uint32_t*)0x20000454 = 0;
*(uint32_t*)0x20000458 = 0;
*(uint64_t*)0x20000460 = 0;
*(uint64_t*)0x20000468 = 0;
*(uint64_t*)0x20000470 = 0;
*(uint64_t*)0x20000478 = 0;
*(uint64_t*)0x20000480 = 0;
*(uint64_t*)0x20000488 = 0;
*(uint64_t*)0x20000490 = 0;
*(uint64_t*)0x20000498 = 0;
syscall(SYS_aio_read, 0x20000400ul);
memset((void*)0x200000c0, 89, 1);
syscall(SYS_sendto, r[0], 0x200000c0ul, 1ul, 0ul, 0ul, 0ul);
syscall(SYS_shutdown, r[0], 0ul);
res = syscall(SYS_socket, 0x1cul, 5ul, 0x84);
if (res != -1)
r[1] = res;
*(uint64_t*)0x200003c0 = 0;
*(uint32_t*)0x200003c8 = 0;
*(uint64_t*)0x200003d0 = 0x20000300;
*(uint64_t*)0x20000300 = 0x20000200;
memset((void*)0x20000200, 30, 1);
*(uint64_t*)0x20000308 = 1;
*(uint32_t*)0x200003d8 = 1;
*(uint64_t*)0x200003e0 = 0;
*(uint32_t*)0x200003e8 = 0;
*(uint32_t*)0x200003ec = 0;
syscall(SYS_sendmsg, r[0], 0x200003c0ul, 0ul);
res = syscall(SYS_dup2, r[0], r[1]);
if (res != -1)
r[2] = res;
*(uint32_t*)0x20000140 = 0;
memcpy((void*)0x20000144, "\x0a\x00\x01\x00\x01", 5);
syscall(SYS_setsockopt, r[2], 0x84, 0x901, 0x20000140ul, 0xaul);
}
int main(void)
{
syscall(SYS_mmap, 0x20000000ul, 0x1000000ul, 7ul, 0x1012ul, -1, 0ul);
for (procid = 0; procid < 4; procid++) {
if (fork() == 0) {
loop();
}
}
sleep(1000000);
return 0;
}
EOF
mycc -o /tmp/syzkaller55 -Wall -Wextra -O0 /tmp/syzkaller55.c || exit 1
kldstat | grep -q sctp || kldload sctp.ko
start=`date +%s`
while [ $((`date +%s` - start)) -lt 120 ]; do
(cd /tmp; timeout 3m ./syzkaller55)
done
rm -rf /tmp/syzkaller55 /tmp/syzkaller55.c /tmp/syzkaller55.core \
/tmp/syzkaller.??????
exit 0

267
tools/test/stress2/misc/syzkaller57.sh Executable file
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#!/bin/sh
# panic: sbflush_internal: ccc 0 mb 0 mbcnt 256
# cpuid = 6
# time = 1653879149
# KDB: stack backtrace:
# db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame 0xfffffe0694766c00
# vpanic() at vpanic+0x17f/frame 0xfffffe0694766c50
# panic() at panic+0x43/frame 0xfffffe0694766cb0
# sbrelease_internal() at sbrelease_internal+0xb9/frame 0xfffffe0694766cd0
# solisten_proto() at solisten_proto+0xb5/frame 0xfffffe0694766d30
# sctp_listen() at sctp_listen+0x2f7/frame 0xfffffe0694766da0
# solisten() at solisten+0x42/frame 0xfffffe0694766dc0
# kern_listen() at kern_listen+0x7d/frame 0xfffffe0694766e00
# amd64_syscall() at amd64_syscall+0x145/frame 0xfffffe0694766f30
# fast_syscall_common() at fast_syscall_common+0xf8/frame 0xfffffe0694766f30
# --- syscall (0, FreeBSD ELF64, nosys), rip = 0x82222e7da, rsp = 0x820d68d88, rbp = 0x820d68f00 ---
# KDB: enter: panic
# [ thread pid 12921 tid 741095 ]
# Stopped at kdb_enter+0x32: movq $0,0x1277ff3(%rip)
# db> x/s version
# FreeBSD 14.0-CURRENT #0 main-n255847-d46174cd8838b: Sat May 28 20:56:08 CEST 2022
# pho@mercat1.netperf.freebsd.org:/usr/src/sys/amd64/compile/PHO
# db>
[ `uname -p` != "amd64" ] && exit 0
. ../default.cfg
cat > /tmp/syzkaller57.c <<EOF
// https://syzkaller.appspot.com/bug?id=66d47f23f24ecf5536fd47d81defdb917c307bd2
// autogenerated by syzkaller (https://github.com/google/syzkaller)
// Reported-by: syzbot+6c484f116b9dc88f7db1@syzkaller.appspotmail.com
#define _GNU_SOURCE
#include <sys/types.h>
#include <dirent.h>
#include <errno.h>
#include <pwd.h>
#include <setjmp.h>
#include <signal.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/endian.h>
#include <sys/stat.h>
#include <sys/syscall.h>
#include <sys/wait.h>
#include <time.h>
#include <unistd.h>
static __thread int skip_segv;
static __thread jmp_buf segv_env;
static void segv_handler(int sig, siginfo_t* info, void* ctx __unused)
{
uintptr_t addr = (uintptr_t)info->si_addr;
const uintptr_t prog_start = 1 << 20;
const uintptr_t prog_end = 100 << 20;
int skip = __atomic_load_n(&skip_segv, __ATOMIC_RELAXED) != 0;
int valid = addr < prog_start || addr > prog_end;
if (sig == SIGBUS) {
valid = 1;
}
if (skip && valid) {
_longjmp(segv_env, 1);
}
exit(sig);
}
static void install_segv_handler(void)
{
struct sigaction sa;
memset(&sa, 0, sizeof(sa));
sa.sa_sigaction = segv_handler;
sa.sa_flags = SA_NODEFER | SA_SIGINFO;
sigaction(SIGSEGV, &sa, NULL);
sigaction(SIGBUS, &sa, NULL);
}
#define NONFAILING(...) \
({ \
int ok = 1; \
__atomic_fetch_add(&skip_segv, 1, __ATOMIC_SEQ_CST); \
if (_setjmp(segv_env) == 0) { \
__VA_ARGS__; \
} else \
ok = 0; \
__atomic_fetch_sub(&skip_segv, 1, __ATOMIC_SEQ_CST); \
ok; \
})
static void kill_and_wait(int pid, int* status)
{
kill(pid, SIGKILL);
while (waitpid(-1, status, 0) != pid) {
}
}
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 __attribute__((noinline)) remove_dir(const char* dir)
{
DIR* dp = opendir(dir);
if (dp == NULL) {
if (errno == EACCES) {
if (rmdir(dir))
exit(1);
return;
}
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);
struct stat st;
if (lstat(filename, &st))
exit(1);
if (S_ISDIR(st.st_mode)) {
remove_dir(filename);
continue;
}
if (unlink(filename))
exit(1);
}
closedir(dp);
if (rmdir(dir))
exit(1);
}
static void execute_one(void);
#define WAIT_FLAGS 0
static void loop(void)
{
int iter = 0;
for (;; iter++) {
char cwdbuf[32];
sprintf(cwdbuf, "./%d", iter);
if (mkdir(cwdbuf, 0777))
exit(1);
int pid = fork();
if (pid < 0)
exit(1);
if (pid == 0) {
if (chdir(cwdbuf))
exit(1);
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);
}
}
uint64_t r[1] = {0xffffffffffffffff};
void execute_one(void)
{
intptr_t res = 0;
res = syscall(SYS_socket, 0x1cul, 1ul, 0x84);
if (res != -1)
r[0] = res;
NONFAILING(*(uint8_t*)0x20000000 = 0x1c);
NONFAILING(*(uint8_t*)0x20000001 = 0x1c);
NONFAILING(*(uint16_t*)0x20000002 = htobe16(0x4e22));
NONFAILING(*(uint32_t*)0x20000004 = 0x20);
NONFAILING(memset((void*)0x20000008, 0, 16));
NONFAILING(*(uint32_t*)0x20000018 = 0x20);
syscall(SYS_bind, r[0], 0x20000000ul, 0x1cul);
NONFAILING(*(uint8_t*)0x20000180 = 0x1c);
NONFAILING(*(uint8_t*)0x20000181 = 0x1c);
NONFAILING(*(uint16_t*)0x20000182 = htobe16(0x4e22));
NONFAILING(*(uint32_t*)0x20000184 = 4);
NONFAILING(*(uint64_t*)0x20000188 = htobe64(0));
NONFAILING(*(uint64_t*)0x20000190 = htobe64(1));
NONFAILING(*(uint32_t*)0x20000198 = 4);
syscall(SYS_connect, r[0], 0x20000180ul, 0x1cul);
NONFAILING(memcpy(
(void*)0x20000480,
"\xa3\x1b\xe1\x78\x8e\x58\x9b\x38\x59\xf3\xbb\xdd\x7e\xf7\x51\x23\x97\x31"
"\xb2\x90\x4a\xd0\x4e\xb7\xdc\x37\xc6\x95\xf6\x05\x5c\xa8\x36\x54\x7e\x7b"
"\x6c\xc3\x7d\xae\x2a\xe4\x77\x08\x94\x67\x3c\x89\x65\x93\x24\x1c\x56\x3e"
"\x08\x69\x05\x35\xeb\x3b\x7f\x19\x7d\xda\x44\x54\xb4\x42\x4f\x34\xc8\x81"
"\x69\x4e\xac\xef\xa6\xd4\xb1\x61\x9d\xf1\x0b\x97\x7c\xd9\x82\x16\xc9\x7b"
"\x2e\xb3\x9f\x02\xde\x0f\xae\xe7\x0b\xec\xa3\x66\x3c\x2e\x6c\xd1\xca\x02"
"\xae\x0f\xd5\x65\xb9\x7c\x5c\xa0\xea\xfc\xa4\xc9\x13\x73\x14\x16\xba\xcc"
"\xae\x89\xe2\x68\x77\xfc\x2a\x8c\xa3\xee\xa8\x45\xf7\xc2\xcb\x48\x93\xe5"
"\x83\x52\x45\x26\xe3\xeb\x73\xa2\xe4\xf1\x11\xcf\x40\x5f\xef\x99\xc2\xa1"
"\xeb\x2c\x96\x70\x56\x88\xc8\xc7\x6b\xa1\x66\xd2\x23\x20\x07\x62\x69\xd2"
"\x1c\x52\xbb\x5e\x86\x43\x7d\x6c\x65\x44\x42\xf6\xd8\x45\xe2\xff\x77\xf9"
"\x24\xf0\x1d\x29\xf6\xd3\x74\x83\x25\x40\x56\x50\x17\x7f\xc3\x60\xd7\xed"
"\xb1\xfb\x7a\x74\x38\x2b\x47\x34\x93\x9c\xee\xc9\xb0\xbf\x7d\xc4\x19\xe2"
"\x77\x49\xbc\x71\x9c\x30\x8b\x57\x0f\x13\x4d\x93\x9d\x53\xa8\x03\xc1\x3b"
"\x5d\xc3\xbc\x20\xc4\x9e\xc1\x62\x69\xca\x92\x0f\x04\xa1\x0b\xea\xe7\x61"
"\x79\x99\x5a\x53\x1a\x27\x40\xf0\x0b\xc5\xe8\xb5\xf0\xd8\x1c\xd2\xca\x99"
"\x16\x70\xa8\xc5\xac\x0a\x6b\x99\x31\x0c\x90\xe2\xa5\xe0\xe3\x7c\x99\x3c"
"\xbd\xeb\x42\xcf\x74\xe0\xa8\xea\x4e\x64\xd8\x30\x46\x6d\x6e\x83\x7f\x21"
"\x00\x5c\xcf\x79\xfe\x19\xdd\xd5\xaf\x69\x9e\x1b\x67\xd5\x3f\x18\x4d\xe5"
"\x2a\xec\x02\x12\x92",
347));
syscall(SYS_sendto, r[0], 0x20000480ul, 0x15bul, 0x20108ul, 0ul, 0ul);
syscall(SYS_listen, r[0], 0x1f);
}
int main(void)
{
syscall(SYS_mmap, 0x20000000ul, 0x1000000ul, 7ul, 0x1012ul, -1, 0ul);
install_segv_handler();
use_temporary_dir();
loop();
return 0;
}
EOF
mycc -o /tmp/syzkaller57 -Wall -Wextra -O0 /tmp/syzkaller57.c || exit 1
kldstat | grep -q sctp || { kldload sctp.ko && loaded=1; }
for i in `jot 3`; do
(cd /tmp; timeout 3m ./syzkaller57) &
done
wait
rm -rf /tmp/syzkaller57 /tmp/syzkaller57.c /tmp/syzkaller57.core \
/tmp/syzkaller.??????
[ $loaded ] && kldunload sctp.ko
exit 0