ok github.com/google/syzkaller/dashboard/app (cached)
? github.com/google/syzkaller/dashboard/dashapi [no test files]
ok github.com/google/syzkaller/executor 0.648s
ok github.com/google/syzkaller/pkg/ast 4.161s
ok github.com/google/syzkaller/pkg/bisect 119.367s
ok github.com/google/syzkaller/pkg/build 8.849s
ok github.com/google/syzkaller/pkg/compiler 28.396s
ok github.com/google/syzkaller/pkg/config (cached)
ok github.com/google/syzkaller/pkg/cover (cached)
? github.com/google/syzkaller/pkg/cover/backend [no test files]
--- FAIL: TestGenerate (74.17s)
--- FAIL: TestGenerate/openbsd/amd64 (1.00s)
csource_test.go:68: seed=1609249048101445047
--- FAIL: TestGenerate/openbsd/amd64/9 (3.68s)
csource_test.go:124: opts: {Threaded:true Collide:false Repeat:true RepeatTimes:0 Procs:0 Slowdown:1 Sandbox:setuid Fault:false FaultCall:0 FaultNth:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false USB:false VhciInjection:false Wifi:false Sysctl:false UseTmpDir:true HandleSegv:false Repro:false Trace:false}
program:
socketpair(0x18, 0x1, 0x9e, &(0x7f0000000000)={<r0=>0xffffffffffffffff, <r1=>0xffffffffffffffff})
bind(r1, &(0x7f0000000040)=@un=@abs={0x0, 0x0, 0x2}, 0x8)
getpeername$unix(r1, &(0x7f0000000080)=@abs, &(0x7f00000000c0)=0x8)
getpeername(r1, &(0x7f0000000100)=@in, &(0x7f0000000140)=0xc)
r2 = accept(r0, &(0x7f0000000180)=@in, &(0x7f00000001c0)=0xc)
readv(r2, &(0x7f0000001340)=[{&(0x7f0000000200)=""/121, 0x79}, {&(0x7f0000000280)=""/4096, 0x1000}, {&(0x7f0000001280)=""/180, 0xb4}], 0x3)
recvfrom(r0, &(0x7f0000001380)=""/145, 0x91, 0x801, &(0x7f0000001440)=@un=@abs={0x0, 0x0, 0x2}, 0x8)
ioctl$BIOCSETWF(0xffffffffffffff9c, 0x80104277, &(0x7f00000014c0)={0x1, &(0x7f0000001480)=[{0x6, 0x50, 0x6, 0x9}]})
r3 = openat(0xffffffffffffff9c, &(0x7f0000001500)='./file0\x00', 0x80, 0x55)
ioctl$VMM_IOC_TERM(r3, 0x80045604, &(0x7f0000001540)={0x5})
syz_emit_ethernet(0xe0, &(0x7f0000000000)={@broadcast, @local, [{[], {0x8100, 0x6, 0x0, 0x1}}], {@ipv4={0x800, {{0x21, 0x4, 0x0, 0x3d, 0xce, 0x66, 0x8, 0xb5, 0x16, 0x0, @broadcast, @empty, {[@ssrr={0x89, 0xb, 0xc2, [@local={0xac, 0x14, 0x0}, @local={0xac, 0x14, 0x0}]}, @ssrr={0x89, 0x23, 0x1, [@multicast1, @remote={0xac, 0x14, 0x0}, @remote={0xac, 0x14, 0x0}, @local={0xac, 0x14, 0x0}, @broadcast, @broadcast, @empty, @broadcast]}, @generic={0x88, 0xc, "f6c9d88d8d28f603df8e"}, @generic={0x82, 0x11, "448bc19f8c32cad3eed7baeb393923"}, @ssrr={0x89, 0x1b, 0x7, [@broadcast, @empty, @empty, @multicast2, @rand_addr=0x100, @multicast2]}, @lsrr={0x83, 0x7, 0x7, [@multicast1]}]}}, @icmp=@parameter_prob={0xc, 0x2, 0x0, 0xf2, 0x1f, 0x0, {0x10, 0x4, 0x2, 0x1f, 0xf63, 0x65, 0xdfc5, 0x97, 0xf0, 0x20, @empty, @broadcast, {[@end, @rr={0x7, 0x1b, 0x8, [@broadcast, @broadcast, @multicast2, @multicast2, @multicast1, @rand_addr=0x80]}, @ssrr={0x89, 0x7, 0xfc, [@loopback]}, @ra={0x94, 0x6, 0x3}]}}, "a233"}}}}})
syz_execute_func(&(0x7f0000000100)="45de030faaf3ac44c178e828c421215d696566460f38174500e6008c6cef0e430f01dbc4418f2a530a")
syz_extract_tcp_res(&(0x7f0000000140), 0x800, 0x1000)
syz_open_pts()
csource_test.go:125: failed to build program:
// autogenerated by syzkaller (https://github.com/google/syzkaller)
#define _GNU_SOURCE
#include <dirent.h>
#include <endian.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/resource.h>
#include <sys/stat.h>
#include <sys/syscall.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <termios.h>
#include <time.h>
#include <unistd.h>
#include <util.h>
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 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;
}
#define BITMASK(bf_off,bf_len) (((1ull << (bf_len)) - 1) << (bf_off))
#define STORE_BY_BITMASK(type,htobe,addr,val,bf_off,bf_len) *(type*)(addr) = htobe((htobe(*(type*)(addr)) & ~BITMASK((bf_off), (bf_len))) | (((type)(val) << (bf_off)) & BITMASK((bf_off), (bf_len))))
struct csum_inet {
uint32_t acc;
};
static void csum_inet_init(struct csum_inet* csum)
{
csum->acc = 0;
}
static void csum_inet_update(struct csum_inet* csum, const uint8_t* data, size_t length)
{
if (length == 0)
return;
size_t i = 0;
for (; i < length - 1; i += 2)
csum->acc += *(uint16_t*)&data[i];
if (length & 1)
csum->acc += le16toh((uint16_t)data[length - 1]);
while (csum->acc > 0xffff)
csum->acc = (csum->acc & 0xffff) + (csum->acc >> 16);
}
static uint16_t csum_inet_digest(struct csum_inet* csum)
{
return ~csum->acc;
}
#define __syscall syscall
static uintptr_t syz_open_pts(void)
{
int master, slave;
if (openpty(&master, &slave, NULL, NULL, NULL) == -1)
return -1;
if (dup2(master, master + 100) != -1)
close(master);
return slave;
}
static void sandbox_common()
{
struct rlimit rlim;
rlim.rlim_cur = rlim.rlim_max = 8 << 20;
setrlimit(RLIMIT_MEMLOCK, &rlim);
rlim.rlim_cur = rlim.rlim_max = 1 << 20;
setrlimit(RLIMIT_FSIZE, &rlim);
rlim.rlim_cur = rlim.rlim_max = 1 << 20;
setrlimit(RLIMIT_STACK, &rlim);
rlim.rlim_cur = rlim.rlim_max = 0;
setrlimit(RLIMIT_CORE, &rlim);
rlim.rlim_cur = rlim.rlim_max = 256;
setrlimit(RLIMIT_NOFILE, &rlim);
}
static void loop();
static int wait_for_loop(int pid)
{
if (pid < 0)
exit(1);
int status = 0;
while (waitpid(-1, &status, WUNTRACED) != pid) {
}
return WEXITSTATUS(status);
}
static int do_sandbox_setuid(void)
{
int pid = fork();
if (pid != 0)
return wait_for_loop(pid);
sandbox_common();
char pwbuf[1024];
struct passwd *pw, pwres;
if (getpwnam_r("nobody", &pwres, pwbuf, sizeof(pwbuf), &pw) != 0 || !pw)
exit(1);
if (setgroups(0, NULL))
exit(1);
if (setgid(pw->pw_gid))
exit(1);
if (setuid(pw->pw_uid))
exit(1);
loop();
exit(1);
}
static long syz_execute_func(volatile long text)
{
((void (*)(void))(text))();
return 0;
}
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 < 14; 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++) {
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[4] = {0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff};
void execute_call(int call)
{
intptr_t res = 0;
switch (call) {
case 0:
res = syscall(SYS_socketpair, 0x18ul, 1ul, 0x9e, 0x20000000ul);
if (res != -1) {
r[0] = *(uint32_t*)0x20000000;
r[1] = *(uint32_t*)0x20000004;
}
break;
case 1:
*(uint16_t*)0x20000040 = 0;
*(uint8_t*)0x20000042 = 0;
*(uint32_t*)0x20000044 = 0x4e22;
syscall(SYS_bind, r[1], 0x20000040ul, 8ul);
break;
case 2:
*(uint32_t*)0x200000c0 = 8;
syscall(SYS_getpeername, r[1], 0x20000080ul, 0x200000c0ul);
break;
case 3:
*(uint32_t*)0x20000140 = 0xc;
syscall(SYS_getpeername, r[1], 0x20000100ul, 0x20000140ul);
break;
case 4:
*(uint32_t*)0x200001c0 = 0xc;
res = syscall(SYS_accept, r[0], 0x20000180ul, 0x200001c0ul);
if (res != -1)
r[2] = res;
break;
case 5:
*(uint64_t*)0x20001340 = 0x20000200;
*(uint64_t*)0x20001348 = 0x79;
*(uint64_t*)0x20001350 = 0x20000280;
*(uint64_t*)0x20001358 = 0x1000;
*(uint64_t*)0x20001360 = 0x20001280;
*(uint64_t*)0x20001368 = 0xb4;
syscall(SYS_readv, r[2], 0x20001340ul, 3ul);
break;
case 6:
*(uint16_t*)0x20001440 = 0;
*(uint8_t*)0x20001442 = 0;
*(uint32_t*)0x20001444 = 0x4e22;
syscall(SYS_recvfrom, r[0], 0x20001380ul, 0x91ul, 0x801ul, 0x20001440ul, 8ul);
break;
case 7:
*(uint32_t*)0x200014c0 = 1;
*(uint64_t*)0x200014c8 = 0x20001480;
*(uint16_t*)0x20001480 = 6;
*(uint8_t*)0x20001482 = 0x50;
*(uint8_t*)0x20001483 = 6;
*(uint32_t*)0x20001484 = 9;
syscall(SYS_ioctl, 0xffffff9c, 0x80104277ul, 0x200014c0ul);
break;
case 8:
memcpy((void*)0x20001500, "./file0\000", 8);
res = syscall(SYS_openat, 0xffffff9c, 0x20001500ul, 0x80ul, 0x55ul);
if (res != -1)
r[3] = res;
break;
case 9:
*(uint32_t*)0x20001540 = 5;
syscall(SYS_ioctl, r[3], 0x80045604ul, 0x20001540ul);
break;
case 10:
*(uint8_t*)0x20000000 = -1;
*(uint8_t*)0x20000001 = -1;
*(uint8_t*)0x20000002 = -1;
*(uint8_t*)0x20000003 = -1;
*(uint8_t*)0x20000004 = -1;
*(uint8_t*)0x20000005 = -1;
*(uint8_t*)0x20000006 = 0xaa;
*(uint8_t*)0x20000007 = 0xaa;
*(uint8_t*)0x20000008 = 0xaa;
*(uint8_t*)0x20000009 = 0xaa;
*(uint8_t*)0x2000000a = 0xaa;
*(uint8_t*)0x2000000b = 0xaa;
*(uint16_t*)0x2000000c = htobe16(0x8100);
STORE_BY_BITMASK(uint16_t, , 0x2000000e, 6, 0, 3);
STORE_BY_BITMASK(uint16_t, , 0x2000000e, 0, 3, 1);
STORE_BY_BITMASK(uint16_t, , 0x2000000e, 1, 4, 12);
*(uint16_t*)0x20000010 = htobe16(0x800);
STORE_BY_BITMASK(uint8_t, , 0x20000012, 0x21, 0, 4);
STORE_BY_BITMASK(uint8_t, , 0x20000012, 4, 4, 4);
STORE_BY_BITMASK(uint8_t, , 0x20000013, 0, 0, 2);
STORE_BY_BITMASK(uint8_t, , 0x20000013, 0x3d, 2, 6);
*(uint16_t*)0x20000014 = htobe16(0xce);
*(uint16_t*)0x20000016 = htobe16(0x66);
*(uint16_t*)0x20000018 = htobe16(8);
*(uint8_t*)0x2000001a = 0xb5;
*(uint8_t*)0x2000001b = 0x16;
*(uint16_t*)0x2000001c = htobe16(0);
*(uint32_t*)0x2000001e = htobe32(-1);
*(uint32_t*)0x20000022 = htobe32(0);
*(uint8_t*)0x20000026 = 0x89;
*(uint8_t*)0x20000027 = 0xb;
*(uint8_t*)0x20000028 = 0xc2;
*(uint8_t*)0x20000029 = 0xac;
*(uint8_t*)0x2000002a = 0x14;
*(uint8_t*)0x2000002b = 0;
*(uint8_t*)0x2000002c = 0xaa;
*(uint8_t*)0x2000002d = 0xac;
*(uint8_t*)0x2000002e = 0x14;
*(uint8_t*)0x2000002f = 0;
*(uint8_t*)0x20000030 = 0xaa;
*(uint8_t*)0x20000031 = 0x89;
*(uint8_t*)0x20000032 = 0x23;
*(uint8_t*)0x20000033 = 1;
*(uint32_t*)0x20000034 = htobe32(0xe0000001);
*(uint8_t*)0x20000038 = 0xac;
*(uint8_t*)0x20000039 = 0x14;
*(uint8_t*)0x2000003a = 0;
*(uint8_t*)0x2000003b = 0xbb;
*(uint8_t*)0x2000003c = 0xac;
*(uint8_t*)0x2000003d = 0x14;
*(uint8_t*)0x2000003e = 0;
*(uint8_t*)0x2000003f = 0xbb;
*(uint8_t*)0x20000040 = 0xac;
*(uint8_t*)0x20000041 = 0x14;
*(uint8_t*)0x20000042 = 0;
*(uint8_t*)0x20000043 = 0xaa;
*(uint32_t*)0x20000044 = htobe32(-1);
*(uint32_t*)0x20000048 = htobe32(-1);
*(uint32_t*)0x2000004c = htobe32(0);
*(uint32_t*)0x20000050 = htobe32(-1);
*(uint8_t*)0x20000054 = 0x88;
*(uint8_t*)0x20000055 = 0xc;
memcpy((void*)0x20000056, "\xf6\xc9\xd8\x8d\x8d\x28\xf6\x03\xdf\x8e", 10);
*(uint8_t*)0x20000060 = 0x82;
*(uint8_t*)0x20000061 = 0x11;
memcpy((void*)0x20000062, "\x44\x8b\xc1\x9f\x8c\x32\xca\xd3\xee\xd7\xba\xeb\x39\x39\x23", 15);
*(uint8_t*)0x20000071 = 0x89;
*(uint8_t*)0x20000072 = 0x1b;
*(uint8_t*)0x20000073 = 7;
*(uint32_t*)0x20000074 = htobe32(-1);
*(uint32_t*)0x20000078 = htobe32(0);
*(uint32_t*)0x2000007c = htobe32(0);
*(uint32_t*)0x20000080 = htobe32(0xe0000002);
*(uint32_t*)0x20000084 = htobe32(0x100);
*(uint32_t*)0x20000088 = htobe32(0xe0000002);
*(uint8_t*)0x2000008c = 0x83;
*(uint8_t*)0x2000008d = 7;
*(uint8_t*)0x2000008e = 7;
*(uint32_t*)0x2000008f = htobe32(0xe0000001);
*(uint8_t*)0x20000096 = 0xc;
*(uint8_t*)0x20000097 = 2;
*(uint16_t*)0x20000098 = htobe16(0);
*(uint8_t*)0x2000009a = 0xf2;
*(uint8_t*)0x2000009b = 0x1f;
*(uint16_t*)0x2000009c = 0;
STORE_BY_BITMASK(uint8_t, , 0x2000009e, 0x10, 0, 4);
STORE_BY_BITMASK(uint8_t, , 0x2000009e, 4, 4, 4);
STORE_BY_BITMASK(uint8_t, , 0x2000009f, 2, 0, 2);
STORE_BY_BITMASK(uint8_t, , 0x2000009f, 0x1f, 2, 6);
*(uint16_t*)0x200000a0 = htobe16(0xf63);
*(uint16_t*)0x200000a2 = htobe16(0x65);
*(uint16_t*)0x200000a4 = htobe16(0xdfc5);
*(uint8_t*)0x200000a6 = 0x97;
*(uint8_t*)0x200000a7 = 0xf0;
*(uint16_t*)0x200000a8 = htobe16(0x20);
*(uint32_t*)0x200000aa = htobe32(0);
*(uint32_t*)0x200000ae = htobe32(-1);
*(uint8_t*)0x200000b2 = 0;
*(uint8_t*)0x200000b3 = 7;
*(uint8_t*)0x200000b4 = 0x1b;
*(uint8_t*)0x200000b5 = 8;
*(uint32_t*)0x200000b6 = htobe32(-1);
*(uint32_t*)0x200000ba = htobe32(-1);
*(uint32_t*)0x200000be = htobe32(0xe0000002);
*(uint32_t*)0x200000c2 = htobe32(0xe0000002);
*(uint32_t*)0x200000c6 = htobe32(0xe0000001);
*(uint32_t*)0x200000ca = htobe32(0x80);
*(uint8_t*)0x200000ce = 0x89;
*(uint8_t*)0x200000cf = 7;
*(uint8_t*)0x200000d0 = 0xfc;
*(uint32_t*)0x200000d1 = htobe32(0x7f000001);
*(uint8_t*)0x200000d5 = 0x94;
*(uint8_t*)0x200000d6 = 6;
*(uint32_t*)0x200000d7 = htobe32(3);
memcpy((void*)0x200000de, "\xa2\x33", 2);
struct csum_inet csum_1;
csum_inet_init(&csum_1);
csum_inet_update(&csum_1, (const uint8_t*)0x20000096, 74);
*(uint16_t*)0x20000098 = csum_inet_digest(&csum_1);
struct csum_inet csum_2;
csum_inet_init(&csum_2);
csum_inet_update(&csum_2, (const uint8_t*)0x20000012, 132);
*(uint16_t*)0x2000001c = csum_inet_digest(&csum_2);
break;
case 11:
memcpy((void*)0x20000100, "\x45\xde\x03\x0f\xaa\xf3\xac\x44\xc1\x78\xe8\x28\xc4\x21\x21\x5d\x69\x65\x66\x46\x0f\x38\x17\x45\x00\xe6\x00\x8c\x6c\xef\x0e\x43\x0f\x01\xdb\xc4\x41\x8f\x2a\x53\x0a", 41);
syz_execute_func(0x20000100);
break;
case 12:
break;
case 13:
syz_open_pts();
break;
}
}
int main(void)
{
syscall(SYS_mmap, 0x20000000ul, 0x1000000ul, 3ul, 0x1012ul, -1, 0ul, 0ul);
use_temporary_dir();
do_sandbox_setuid();
return 0;
}
<stdin>:353:4: error: misleading indentation; statement is not part of the previous 'if' [-Werror,-Wmisleading-indentation]
kill_and_wait(pid, &status);
^
<stdin>:351:3: note: previous statement is here
if (current_time_ms() - start < 5000)
^
1 error generated.
compiler invocation: c++ [-o /tmp/syz-executor126525564 -DGOOS_openbsd=1 -DGOARCH_amd64=1 -DHOSTGOOS_openbsd=1 -x c - -m64 -static -lutil -O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wframe-larger-than=16384]
--- FAIL: TestGenerate/openbsd/amd64/10 (4.66s)
csource_test.go:124: opts: {Threaded:true Collide:false Repeat:true RepeatTimes:0 Procs:0 Slowdown:1 Sandbox:none Fault:false FaultCall:0 FaultNth:0 Leak:false NetInjection:true NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false USB:false VhciInjection:false Wifi:false Sysctl:false UseTmpDir:true HandleSegv:false Repro:false Trace:false}
program:
socketpair(0x18, 0x1, 0x9e, &(0x7f0000000000)={<r0=>0xffffffffffffffff, <r1=>0xffffffffffffffff})
bind(r1, &(0x7f0000000040)=@un=@abs={0x0, 0x0, 0x2}, 0x8)
getpeername$unix(r1, &(0x7f0000000080)=@abs, &(0x7f00000000c0)=0x8)
getpeername(r1, &(0x7f0000000100)=@in, &(0x7f0000000140)=0xc)
r2 = accept(r0, &(0x7f0000000180)=@in, &(0x7f00000001c0)=0xc)
readv(r2, &(0x7f0000001340)=[{&(0x7f0000000200)=""/121, 0x79}, {&(0x7f0000000280)=""/4096, 0x1000}, {&(0x7f0000001280)=""/180, 0xb4}], 0x3)
recvfrom(r0, &(0x7f0000001380)=""/145, 0x91, 0x801, &(0x7f0000001440)=@un=@abs={0x0, 0x0, 0x2}, 0x8)
ioctl$BIOCSETWF(0xffffffffffffff9c, 0x80104277, &(0x7f00000014c0)={0x1, &(0x7f0000001480)=[{0x6, 0x50, 0x6, 0x9}]})
r3 = openat(0xffffffffffffff9c, &(0x7f0000001500)='./file0\x00', 0x80, 0x55)
ioctl$VMM_IOC_TERM(r3, 0x80045604, &(0x7f0000001540)={0x5})
syz_emit_ethernet(0xe0, &(0x7f0000000000)={@broadcast, @local, [{[], {0x8100, 0x6, 0x0, 0x1}}], {@ipv4={0x800, {{0x21, 0x4, 0x0, 0x3d, 0xce, 0x66, 0x8, 0xb5, 0x16, 0x0, @broadcast, @empty, {[@ssrr={0x89, 0xb, 0xc2, [@local={0xac, 0x14, 0x0}, @local={0xac, 0x14, 0x0}]}, @ssrr={0x89, 0x23, 0x1, [@multicast1, @remote={0xac, 0x14, 0x0}, @remote={0xac, 0x14, 0x0}, @local={0xac, 0x14, 0x0}, @broadcast, @broadcast, @empty, @broadcast]}, @generic={0x88, 0xc, "f6c9d88d8d28f603df8e"}, @generic={0x82, 0x11, "448bc19f8c32cad3eed7baeb393923"}, @ssrr={0x89, 0x1b, 0x7, [@broadcast, @empty, @empty, @multicast2, @rand_addr=0x100, @multicast2]}, @lsrr={0x83, 0x7, 0x7, [@multicast1]}]}}, @icmp=@parameter_prob={0xc, 0x2, 0x0, 0xf2, 0x1f, 0x0, {0x10, 0x4, 0x2, 0x1f, 0xf63, 0x65, 0xdfc5, 0x97, 0xf0, 0x20, @empty, @broadcast, {[@end, @rr={0x7, 0x1b, 0x8, [@broadcast, @broadcast, @multicast2, @multicast2, @multicast1, @rand_addr=0x80]}, @ssrr={0x89, 0x7, 0xfc, [@loopback]}, @ra={0x94, 0x6, 0x3}]}}, "a233"}}}}})
syz_execute_func(&(0x7f0000000100)="45de030faaf3ac44c178e828c421215d696566460f38174500e6008c6cef0e430f01dbc4418f2a530a")
syz_extract_tcp_res(&(0x7f0000000140), 0x800, 0x1000)
syz_open_pts()
csource_test.go:125: failed to build program:
// autogenerated by syzkaller (https://github.com/google/syzkaller)
#define _GNU_SOURCE
#include <dirent.h>
#include <endian.h>
#include <errno.h>
#include <fcntl.h>
#include <net/ethertypes.h>
#include <net/if.h>
#include <net/if_arp.h>
#include <net/if_tun.h>
#include <netinet/in.h>
#include <netinet/ip.h>
#include <netinet/ip6.h>
#include <netinet/tcp.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/resource.h>
#include <sys/stat.h>
#include <sys/syscall.h>
#include <sys/types.h>
#include <sys/uio.h>
#include <sys/wait.h>
#include <termios.h>
#include <time.h>
#include <unistd.h>
#include <util.h>
#include <netinet/if_ether.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 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 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;
}
#define BITMASK(bf_off,bf_len) (((1ull << (bf_len)) - 1) << (bf_off))
#define STORE_BY_BITMASK(type,htobe,addr,val,bf_off,bf_len) *(type*)(addr) = htobe((htobe(*(type*)(addr)) & ~BITMASK((bf_off), (bf_len))) | (((type)(val) << (bf_off)) & BITMASK((bf_off), (bf_len))))
struct csum_inet {
uint32_t acc;
};
static void csum_inet_init(struct csum_inet* csum)
{
csum->acc = 0;
}
static void csum_inet_update(struct csum_inet* csum, const uint8_t* data, size_t length)
{
if (length == 0)
return;
size_t i = 0;
for (; i < length - 1; i += 2)
csum->acc += *(uint16_t*)&data[i];
if (length & 1)
csum->acc += le16toh((uint16_t)data[length - 1]);
while (csum->acc > 0xffff)
csum->acc = (csum->acc & 0xffff) + (csum->acc >> 16);
}
static uint16_t csum_inet_digest(struct csum_inet* csum)
{
return ~csum->acc;
}
#define __syscall syscall
static uintptr_t syz_open_pts(void)
{
int master, slave;
if (openpty(&master, &slave, NULL, NULL, NULL) == -1)
return -1;
if (dup2(master, master + 100) != -1)
close(master);
return slave;
}
static int tunfd = -1;
#define MAX_TUN 4
#define TUN_IFACE "tap%d"
#define TUN_DEVICE "/dev/tap%d"
#define LOCAL_MAC "aa:aa:aa:aa:aa:aa"
#define REMOTE_MAC "aa:aa:aa:aa:aa:bb"
#define LOCAL_IPV4 "172.20.%d.170"
#define REMOTE_IPV4 "172.20.%d.187"
#define LOCAL_IPV6 "fe80::%02hxaa"
#define REMOTE_IPV6 "fe80::%02hxbb"
static void vsnprintf_check(char* str, size_t size, const char* format, va_list args)
{
int rv = vsnprintf(str, size, format, args);
if (rv < 0)
exit(1);
if ((size_t)rv >= size)
exit(1);
}
static void snprintf_check(char* str, size_t size, const char* format, ...)
{
va_list args;
va_start(args, format);
vsnprintf_check(str, size, format, args);
va_end(args);
}
#define COMMAND_MAX_LEN 128
#define PATH_PREFIX "PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin "
#define PATH_PREFIX_LEN (sizeof(PATH_PREFIX) - 1)
static void execute_command(bool panic, const char* format, ...)
{
va_list args;
va_start(args, format);
char command[PATH_PREFIX_LEN + COMMAND_MAX_LEN];
memcpy(command, PATH_PREFIX, PATH_PREFIX_LEN);
vsnprintf_check(command + PATH_PREFIX_LEN, COMMAND_MAX_LEN, format, args);
va_end(args);
int rv = system(command);
if (rv) {
if (panic)
exit(1);
}
}
static void initialize_tun(int tun_id)
{
if (tun_id < 0 || tun_id >= MAX_TUN) {
exit(1);
}
char tun_device[sizeof(TUN_DEVICE)];
snprintf_check(tun_device, sizeof(tun_device), TUN_DEVICE, tun_id);
char tun_iface[sizeof(TUN_IFACE)];
snprintf_check(tun_iface, sizeof(tun_iface), TUN_IFACE, tun_id);
execute_command(0, "ifconfig %s destroy", tun_device);
tunfd = open(tun_device, O_RDWR | O_NONBLOCK);
if (tunfd == -1) {
printf("tun: can't open %s: errno=%d\n", tun_device, errno);
return;
}
const int kTunFd = 240;
if (dup2(tunfd, kTunFd) < 0)
exit(1);
close(tunfd);
tunfd = kTunFd;
char local_mac[sizeof(LOCAL_MAC)];
snprintf_check(local_mac, sizeof(local_mac), LOCAL_MAC);
execute_command(1, "ifconfig %s lladdr %s", tun_iface, local_mac);
char local_ipv4[sizeof(LOCAL_IPV4)];
snprintf_check(local_ipv4, sizeof(local_ipv4), LOCAL_IPV4, tun_id);
execute_command(1, "ifconfig %s inet %s netmask 255.255.255.0", tun_iface, local_ipv4);
char remote_mac[sizeof(REMOTE_MAC)];
char remote_ipv4[sizeof(REMOTE_IPV4)];
snprintf_check(remote_mac, sizeof(remote_mac), REMOTE_MAC);
snprintf_check(remote_ipv4, sizeof(remote_ipv4), REMOTE_IPV4, tun_id);
execute_command(0, "arp -s %s %s", remote_ipv4, remote_mac);
char local_ipv6[sizeof(LOCAL_IPV6)];
snprintf_check(local_ipv6, sizeof(local_ipv6), LOCAL_IPV6, tun_id);
execute_command(1, "ifconfig %s inet6 %s", tun_iface, local_ipv6);
char remote_ipv6[sizeof(REMOTE_IPV6)];
snprintf_check(remote_ipv6, sizeof(remote_ipv6), REMOTE_IPV6, tun_id);
execute_command(0, "ndp -s %s%%%s %s", remote_ipv6, tun_iface, remote_mac);
}
static long syz_emit_ethernet(volatile long a0, volatile long a1)
{
if (tunfd < 0)
return (uintptr_t)-1;
size_t length = a0;
const char* data = (char*)a1;
return write(tunfd, data, length);
}
static int read_tun(char* data, int size)
{
if (tunfd < 0)
return -1;
int rv = read(tunfd, data, size);
if (rv < 0) {
if (errno == EAGAIN)
return -1;
exit(1);
}
return rv;
}
struct tcp_resources {
uint32_t seq;
uint32_t ack;
};
static long syz_extract_tcp_res(volatile long a0, volatile long a1, volatile long a2)
{
if (tunfd < 0)
return (uintptr_t)-1;
char data[1000];
int rv = read_tun(&data[0], sizeof(data));
if (rv == -1)
return (uintptr_t)-1;
size_t length = rv;
if (length < sizeof(struct ether_header))
return (uintptr_t)-1;
struct ether_header* ethhdr = (struct ether_header*)&data[0];
struct tcphdr* tcphdr = 0;
if (ethhdr->ether_type == htons(ETHERTYPE_IP)) {
if (length < sizeof(struct ether_header) + sizeof(struct ip))
return (uintptr_t)-1;
struct ip* iphdr = (struct ip*)&data[sizeof(struct ether_header)];
if (iphdr->ip_p != IPPROTO_TCP)
return (uintptr_t)-1;
if (length < sizeof(struct ether_header) + iphdr->ip_hl * 4 + sizeof(struct tcphdr))
return (uintptr_t)-1;
tcphdr = (struct tcphdr*)&data[sizeof(struct ether_header) + iphdr->ip_hl * 4];
} else {
if (length < sizeof(struct ether_header) + sizeof(struct ip6_hdr))
return (uintptr_t)-1;
struct ip6_hdr* ipv6hdr = (struct ip6_hdr*)&data[sizeof(struct ether_header)];
if (ipv6hdr->ip6_nxt != IPPROTO_TCP)
return (uintptr_t)-1;
if (length < sizeof(struct ether_header) + sizeof(struct ip6_hdr) + sizeof(struct tcphdr))
return (uintptr_t)-1;
tcphdr = (struct tcphdr*)&data[sizeof(struct ether_header) + sizeof(struct ip6_hdr)];
}
struct tcp_resources* res = (struct tcp_resources*)a0;
res->seq = htonl(ntohl(tcphdr->th_seq) + (uint32_t)a1);
res->ack = htonl(ntohl(tcphdr->th_ack) + (uint32_t)a2);
return 0;
}
static void sandbox_common()
{
struct rlimit rlim;
rlim.rlim_cur = rlim.rlim_max = 8 << 20;
setrlimit(RLIMIT_MEMLOCK, &rlim);
rlim.rlim_cur = rlim.rlim_max = 1 << 20;
setrlimit(RLIMIT_FSIZE, &rlim);
rlim.rlim_cur = rlim.rlim_max = 1 << 20;
setrlimit(RLIMIT_STACK, &rlim);
rlim.rlim_cur = rlim.rlim_max = 0;
setrlimit(RLIMIT_CORE, &rlim);
rlim.rlim_cur = rlim.rlim_max = 256;
setrlimit(RLIMIT_NOFILE, &rlim);
}
static void loop();
static int do_sandbox_none(void)
{
sandbox_common();
initialize_tun(procid);
loop();
return 0;
}
static long syz_execute_func(volatile long text)
{
((void (*)(void))(text))();
return 0;
}
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 < 14; 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++) {
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[4] = {0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff};
void execute_call(int call)
{
intptr_t res = 0;
switch (call) {
case 0:
res = syscall(SYS_socketpair, 0x18ul, 1ul, 0x9e, 0x20000000ul);
if (res != -1) {
r[0] = *(uint32_t*)0x20000000;
r[1] = *(uint32_t*)0x20000004;
}
break;
case 1:
*(uint16_t*)0x20000040 = 0;
*(uint8_t*)0x20000042 = 0;
*(uint32_t*)0x20000044 = 0x4e22;
syscall(SYS_bind, r[1], 0x20000040ul, 8ul);
break;
case 2:
*(uint32_t*)0x200000c0 = 8;
syscall(SYS_getpeername, r[1], 0x20000080ul, 0x200000c0ul);
break;
case 3:
*(uint32_t*)0x20000140 = 0xc;
syscall(SYS_getpeername, r[1], 0x20000100ul, 0x20000140ul);
break;
case 4:
*(uint32_t*)0x200001c0 = 0xc;
res = syscall(SYS_accept, r[0], 0x20000180ul, 0x200001c0ul);
if (res != -1)
r[2] = res;
break;
case 5:
*(uint64_t*)0x20001340 = 0x20000200;
*(uint64_t*)0x20001348 = 0x79;
*(uint64_t*)0x20001350 = 0x20000280;
*(uint64_t*)0x20001358 = 0x1000;
*(uint64_t*)0x20001360 = 0x20001280;
*(uint64_t*)0x20001368 = 0xb4;
syscall(SYS_readv, r[2], 0x20001340ul, 3ul);
break;
case 6:
*(uint16_t*)0x20001440 = 0;
*(uint8_t*)0x20001442 = 0;
*(uint32_t*)0x20001444 = 0x4e22;
syscall(SYS_recvfrom, r[0], 0x20001380ul, 0x91ul, 0x801ul, 0x20001440ul, 8ul);
break;
case 7:
*(uint32_t*)0x200014c0 = 1;
*(uint64_t*)0x200014c8 = 0x20001480;
*(uint16_t*)0x20001480 = 6;
*(uint8_t*)0x20001482 = 0x50;
*(uint8_t*)0x20001483 = 6;
*(uint32_t*)0x20001484 = 9;
syscall(SYS_ioctl, 0xffffff9c, 0x80104277ul, 0x200014c0ul);
break;
case 8:
memcpy((void*)0x20001500, "./file0\000", 8);
res = syscall(SYS_openat, 0xffffff9c, 0x20001500ul, 0x80ul, 0x55ul);
if (res != -1)
r[3] = res;
break;
case 9:
*(uint32_t*)0x20001540 = 5;
syscall(SYS_ioctl, r[3], 0x80045604ul, 0x20001540ul);
break;
case 10:
*(uint8_t*)0x20000000 = -1;
*(uint8_t*)0x20000001 = -1;
*(uint8_t*)0x20000002 = -1;
*(uint8_t*)0x20000003 = -1;
*(uint8_t*)0x20000004 = -1;
*(uint8_t*)0x20000005 = -1;
*(uint8_t*)0x20000006 = 0xaa;
*(uint8_t*)0x20000007 = 0xaa;
*(uint8_t*)0x20000008 = 0xaa;
*(uint8_t*)0x20000009 = 0xaa;
*(uint8_t*)0x2000000a = 0xaa;
*(uint8_t*)0x2000000b = 0xaa;
*(uint16_t*)0x2000000c = htobe16(0x8100);
STORE_BY_BITMASK(uint16_t, , 0x2000000e, 6, 0, 3);
STORE_BY_BITMASK(uint16_t, , 0x2000000e, 0, 3, 1);
STORE_BY_BITMASK(uint16_t, , 0x2000000e, 1, 4, 12);
*(uint16_t*)0x20000010 = htobe16(0x800);
STORE_BY_BITMASK(uint8_t, , 0x20000012, 0x21, 0, 4);
STORE_BY_BITMASK(uint8_t, , 0x20000012, 4, 4, 4);
STORE_BY_BITMASK(uint8_t, , 0x20000013, 0, 0, 2);
STORE_BY_BITMASK(uint8_t, , 0x20000013, 0x3d, 2, 6);
*(uint16_t*)0x20000014 = htobe16(0xce);
*(uint16_t*)0x20000016 = htobe16(0x66);
*(uint16_t*)0x20000018 = htobe16(8);
*(uint8_t*)0x2000001a = 0xb5;
*(uint8_t*)0x2000001b = 0x16;
*(uint16_t*)0x2000001c = htobe16(0);
*(uint32_t*)0x2000001e = htobe32(-1);
*(uint32_t*)0x20000022 = htobe32(0);
*(uint8_t*)0x20000026 = 0x89;
*(uint8_t*)0x20000027 = 0xb;
*(uint8_t*)0x20000028 = 0xc2;
*(uint8_t*)0x20000029 = 0xac;
*(uint8_t*)0x2000002a = 0x14;
*(uint8_t*)0x2000002b = 0;
*(uint8_t*)0x2000002c = 0xaa;
*(uint8_t*)0x2000002d = 0xac;
*(uint8_t*)0x2000002e = 0x14;
*(uint8_t*)0x2000002f = 0;
*(uint8_t*)0x20000030 = 0xaa;
*(uint8_t*)0x20000031 = 0x89;
*(uint8_t*)0x20000032 = 0x23;
*(uint8_t*)0x20000033 = 1;
*(uint32_t*)0x20000034 = htobe32(0xe0000001);
*(uint8_t*)0x20000038 = 0xac;
*(uint8_t*)0x20000039 = 0x14;
*(uint8_t*)0x2000003a = 0;
*(uint8_t*)0x2000003b = 0xbb;
*(uint8_t*)0x2000003c = 0xac;
*(uint8_t*)0x2000003d = 0x14;
*(uint8_t*)0x2000003e = 0;
*(uint8_t*)0x2000003f = 0xbb;
*(uint8_t*)0x20000040 = 0xac;
*(uint8_t*)0x20000041 = 0x14;
*(uint8_t*)0x20000042 = 0;
*(uint8_t*)0x20000043 = 0xaa;
*(uint32_t*)0x20000044 = htobe32(-1);
*(uint32_t*)0x20000048 = htobe32(-1);
*(uint32_t*)0x2000004c = htobe32(0);
*(uint32_t*)0x20000050 = htobe32(-1);
*(uint8_t*)0x20000054 = 0x88;
*(uint8_t*)0x20000055 = 0xc;
memcpy((void*)0x20000056, "\xf6\xc9\xd8\x8d\x8d\x28\xf6\x03\xdf\x8e", 10);
*(uint8_t*)0x20000060 = 0x82;
*(uint8_t*)0x20000061 = 0x11;
memcpy((void*)0x20000062, "\x44\x8b\xc1\x9f\x8c\x32\xca\xd3\xee\xd7\xba\xeb\x39\x39\x23", 15);
*(uint8_t*)0x20000071 = 0x89;
*(uint8_t*)0x20000072 = 0x1b;
*(uint8_t*)0x20000073 = 7;
*(uint32_t*)0x20000074 = htobe32(-1);
*(uint32_t*)0x20000078 = htobe32(0);
*(uint32_t*)0x2000007c = htobe32(0);
*(uint32_t*)0x20000080 = htobe32(0xe0000002);
*(uint32_t*)0x20000084 = htobe32(0x100);
*(uint32_t*)0x20000088 = htobe32(0xe0000002);
*(uint8_t*)0x2000008c = 0x83;
*(uint8_t*)0x2000008d = 7;
*(uint8_t*)0x2000008e = 7;
*(uint32_t*)0x2000008f = htobe32(0xe0000001);
*(uint8_t*)0x20000096 = 0xc;
*(uint8_t*)0x20000097 = 2;
*(uint16_t*)0x20000098 = htobe16(0);
*(uint8_t*)0x2000009a = 0xf2;
*(uint8_t*)0x2000009b = 0x1f;
*(uint16_t*)0x2000009c = 0;
STORE_BY_BITMASK(uint8_t, , 0x2000009e, 0x10, 0, 4);
STORE_BY_BITMASK(uint8_t, , 0x2000009e, 4, 4, 4);
STORE_BY_BITMASK(uint8_t, , 0x2000009f, 2, 0, 2);
STORE_BY_BITMASK(uint8_t, , 0x2000009f, 0x1f, 2, 6);
*(uint16_t*)0x200000a0 = htobe16(0xf63);
*(uint16_t*)0x200000a2 = htobe16(0x65);
*(uint16_t*)0x200000a4 = htobe16(0xdfc5);
*(uint8_t*)0x200000a6 = 0x97;
*(uint8_t*)0x200000a7 = 0xf0;
*(uint16_t*)0x200000a8 = htobe16(0x20);
*(uint32_t*)0x200000aa = htobe32(0);
*(uint32_t*)0x200000ae = htobe32(-1);
*(uint8_t*)0x200000b2 = 0;
*(uint8_t*)0x200000b3 = 7;
*(uint8_t*)0x200000b4 = 0x1b;
*(uint8_t*)0x200000b5 = 8;
*(uint32_t*)0x200000b6 = htobe32(-1);
*(uint32_t*)0x200000ba = htobe32(-1);
*(uint32_t*)0x200000be = htobe32(0xe0000002);
*(uint32_t*)0x200000c2 = htobe32(0xe0000002);
*(uint32_t*)0x200000c6 = htobe32(0xe0000001);
*(uint32_t*)0x200000ca = htobe32(0x80);
*(uint8_t*)0x200000ce = 0x89;
*(uint8_t*)0x200000cf = 7;
*(uint8_t*)0x200000d0 = 0xfc;
*(uint32_t*)0x200000d1 = htobe32(0x7f000001);
*(uint8_t*)0x200000d5 = 0x94;
*(uint8_t*)0x200000d6 = 6;
*(uint32_t*)0x200000d7 = htobe32(3);
memcpy((void*)0x200000de, "\xa2\x33", 2);
struct csum_inet csum_1;
csum_inet_init(&csum_1);
csum_inet_update(&csum_1, (const uint8_t*)0x20000096, 74);
*(uint16_t*)0x20000098 = csum_inet_digest(&csum_1);
struct csum_inet csum_2;
csum_inet_init(&csum_2);
csum_inet_update(&csum_2, (const uint8_t*)0x20000012, 132);
*(uint16_t*)0x2000001c = csum_inet_digest(&csum_2);
syz_emit_ethernet(0xe0, 0x20000000);
break;
case 11:
memcpy((void*)0x20000100, "\x45\xde\x03\x0f\xaa\xf3\xac\x44\xc1\x78\xe8\x28\xc4\x21\x21\x5d\x69\x65\x66\x46\x0f\x38\x17\x45\x00\xe6\x00\x8c\x6c\xef\x0e\x43\x0f\x01\xdb\xc4\x41\x8f\x2a\x53\x0a", 41);
syz_execute_func(0x20000100);
break;
case 12:
syz_extract_tcp_res(0x20000140, 0x800, 0x1000);
break;
case 13:
syz_open_pts();
break;
}
}
int main(void)
{
syscall(SYS_mmap, 0x20000000ul, 0x1000000ul, 3ul, 0x1012ul, -1, 0ul, 0ul);
use_temporary_dir();
do_sandbox_none();
return 0;
}
<stdin>:498:4: error: misleading indentation; statement is not part of the previous 'if' [-Werror,-Wmisleading-indentation]
kill_and_wait(pid, &status);
^
<stdin>:496:3: note: previous statement is here
if (current_time_ms() - start < 5000)
^
1 error generated.
compiler invocation: c++ [-o /tmp/syz-executor087191822 -DGOOS_openbsd=1 -DGOARCH_amd64=1 -DHOSTGOOS_openbsd=1 -x c - -m64 -static -lutil -O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wframe-larger-than=16384]
--- FAIL: TestGenerate/openbsd/amd64/13 (5.76s)
csource_test.go:124: opts: {Threaded:true Collide:false Repeat:true RepeatTimes:0 Procs:0 Slowdown:1 Sandbox:none Fault:false FaultCall:0 FaultNth:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false USB:false VhciInjection:false Wifi:false Sysctl:false UseTmpDir:true HandleSegv:false Repro:true Trace:false}
program:
socketpair(0x18, 0x1, 0x9e, &(0x7f0000000000)={<r0=>0xffffffffffffffff, <r1=>0xffffffffffffffff})
bind(r1, &(0x7f0000000040)=@un=@abs={0x0, 0x0, 0x2}, 0x8)
getpeername$unix(r1, &(0x7f0000000080)=@abs, &(0x7f00000000c0)=0x8)
getpeername(r1, &(0x7f0000000100)=@in, &(0x7f0000000140)=0xc)
r2 = accept(r0, &(0x7f0000000180)=@in, &(0x7f00000001c0)=0xc)
readv(r2, &(0x7f0000001340)=[{&(0x7f0000000200)=""/121, 0x79}, {&(0x7f0000000280)=""/4096, 0x1000}, {&(0x7f0000001280)=""/180, 0xb4}], 0x3)
recvfrom(r0, &(0x7f0000001380)=""/145, 0x91, 0x801, &(0x7f0000001440)=@un=@abs={0x0, 0x0, 0x2}, 0x8)
ioctl$BIOCSETWF(0xffffffffffffff9c, 0x80104277, &(0x7f00000014c0)={0x1, &(0x7f0000001480)=[{0x6, 0x50, 0x6, 0x9}]})
r3 = openat(0xffffffffffffff9c, &(0x7f0000001500)='./file0\x00', 0x80, 0x55)
ioctl$VMM_IOC_TERM(r3, 0x80045604, &(0x7f0000001540)={0x5})
syz_emit_ethernet(0xe0, &(0x7f0000000000)={@broadcast, @local, [{[], {0x8100, 0x6, 0x0, 0x1}}], {@ipv4={0x800, {{0x21, 0x4, 0x0, 0x3d, 0xce, 0x66, 0x8, 0xb5, 0x16, 0x0, @broadcast, @empty, {[@ssrr={0x89, 0xb, 0xc2, [@local={0xac, 0x14, 0x0}, @local={0xac, 0x14, 0x0}]}, @ssrr={0x89, 0x23, 0x1, [@multicast1, @remote={0xac, 0x14, 0x0}, @remote={0xac, 0x14, 0x0}, @local={0xac, 0x14, 0x0}, @broadcast, @broadcast, @empty, @broadcast]}, @generic={0x88, 0xc, "f6c9d88d8d28f603df8e"}, @generic={0x82, 0x11, "448bc19f8c32cad3eed7baeb393923"}, @ssrr={0x89, 0x1b, 0x7, [@broadcast, @empty, @empty, @multicast2, @rand_addr=0x100, @multicast2]}, @lsrr={0x83, 0x7, 0x7, [@multicast1]}]}}, @icmp=@parameter_prob={0xc, 0x2, 0x0, 0xf2, 0x1f, 0x0, {0x10, 0x4, 0x2, 0x1f, 0xf63, 0x65, 0xdfc5, 0x97, 0xf0, 0x20, @empty, @broadcast, {[@end, @rr={0x7, 0x1b, 0x8, [@broadcast, @broadcast, @multicast2, @multicast2, @multicast1, @rand_addr=0x80]}, @ssrr={0x89, 0x7, 0xfc, [@loopback]}, @ra={0x94, 0x6, 0x3}]}}, "a233"}}}}})
syz_execute_func(&(0x7f0000000100)="45de030faaf3ac44c178e828c421215d696566460f38174500e6008c6cef0e430f01dbc4418f2a530a")
syz_extract_tcp_res(&(0x7f0000000140), 0x800, 0x1000)
syz_open_pts()
csource_test.go:125: failed to build program:
// autogenerated by syzkaller (https://github.com/google/syzkaller)
#define _GNU_SOURCE
#include <dirent.h>
#include <endian.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/resource.h>
#include <sys/stat.h>
#include <sys/syscall.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <termios.h>
#include <time.h>
#include <unistd.h>
#include <util.h>
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 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;
}
#define BITMASK(bf_off,bf_len) (((1ull << (bf_len)) - 1) << (bf_off))
#define STORE_BY_BITMASK(type,htobe,addr,val,bf_off,bf_len) *(type*)(addr) = htobe((htobe(*(type*)(addr)) & ~BITMASK((bf_off), (bf_len))) | (((type)(val) << (bf_off)) & BITMASK((bf_off), (bf_len))))
struct csum_inet {
uint32_t acc;
};
static void csum_inet_init(struct csum_inet* csum)
{
csum->acc = 0;
}
static void csum_inet_update(struct csum_inet* csum, const uint8_t* data, size_t length)
{
if (length == 0)
return;
size_t i = 0;
for (; i < length - 1; i += 2)
csum->acc += *(uint16_t*)&data[i];
if (length & 1)
csum->acc += le16toh((uint16_t)data[length - 1]);
while (csum->acc > 0xffff)
csum->acc = (csum->acc & 0xffff) + (csum->acc >> 16);
}
static uint16_t csum_inet_digest(struct csum_inet* csum)
{
return ~csum->acc;
}
#define __syscall syscall
static uintptr_t syz_open_pts(void)
{
int master, slave;
if (openpty(&master, &slave, NULL, NULL, NULL) == -1)
return -1;
if (dup2(master, master + 100) != -1)
close(master);
return slave;
}
static void sandbox_common()
{
struct rlimit rlim;
rlim.rlim_cur = rlim.rlim_max = 8 << 20;
setrlimit(RLIMIT_MEMLOCK, &rlim);
rlim.rlim_cur = rlim.rlim_max = 1 << 20;
setrlimit(RLIMIT_FSIZE, &rlim);
rlim.rlim_cur = rlim.rlim_max = 1 << 20;
setrlimit(RLIMIT_STACK, &rlim);
rlim.rlim_cur = rlim.rlim_max = 0;
setrlimit(RLIMIT_CORE, &rlim);
rlim.rlim_cur = rlim.rlim_max = 256;
setrlimit(RLIMIT_NOFILE, &rlim);
}
static void loop();
static int do_sandbox_none(void)
{
sandbox_common();
loop();
return 0;
}
static long syz_execute_func(volatile long text)
{
((void (*)(void))(text))();
return 0;
}
struct thread_t {
int created, call;
event_t ready, done;
};
static struct thread_t threads[16];
static void execute_call(int call);
static int running;
static void* thr(void* arg)
{
struct thread_t* th = (struct thread_t*)arg;
for (;;) {
event_wait(&th->ready);
event_reset(&th->ready);
execute_call(th->call);
__atomic_fetch_sub(&running, 1, __ATOMIC_RELAXED);
event_set(&th->done);
}
return 0;
}
static void execute_one(void)
{
if (write(1, "executing program\n", sizeof("executing program\n") - 1)) {
}
int i, call, thread;
for (call = 0; call < 14; 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++) {
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[4] = {0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff};
void execute_call(int call)
{
intptr_t res = 0;
switch (call) {
case 0:
res = syscall(SYS_socketpair, 0x18ul, 1ul, 0x9e, 0x20000000ul);
if (res != -1) {
r[0] = *(uint32_t*)0x20000000;
r[1] = *(uint32_t*)0x20000004;
}
break;
case 1:
*(uint16_t*)0x20000040 = 0;
*(uint8_t*)0x20000042 = 0;
*(uint32_t*)0x20000044 = 0x4e22;
syscall(SYS_bind, r[1], 0x20000040ul, 8ul);
break;
case 2:
*(uint32_t*)0x200000c0 = 8;
syscall(SYS_getpeername, r[1], 0x20000080ul, 0x200000c0ul);
break;
case 3:
*(uint32_t*)0x20000140 = 0xc;
syscall(SYS_getpeername, r[1], 0x20000100ul, 0x20000140ul);
break;
case 4:
*(uint32_t*)0x200001c0 = 0xc;
res = syscall(SYS_accept, r[0], 0x20000180ul, 0x200001c0ul);
if (res != -1)
r[2] = res;
break;
case 5:
*(uint64_t*)0x20001340 = 0x20000200;
*(uint64_t*)0x20001348 = 0x79;
*(uint64_t*)0x20001350 = 0x20000280;
*(uint64_t*)0x20001358 = 0x1000;
*(uint64_t*)0x20001360 = 0x20001280;
*(uint64_t*)0x20001368 = 0xb4;
syscall(SYS_readv, r[2], 0x20001340ul, 3ul);
break;
case 6:
*(uint16_t*)0x20001440 = 0;
*(uint8_t*)0x20001442 = 0;
*(uint32_t*)0x20001444 = 0x4e22;
syscall(SYS_recvfrom, r[0], 0x20001380ul, 0x91ul, 0x801ul, 0x20001440ul, 8ul);
break;
case 7:
*(uint32_t*)0x200014c0 = 1;
*(uint64_t*)0x200014c8 = 0x20001480;
*(uint16_t*)0x20001480 = 6;
*(uint8_t*)0x20001482 = 0x50;
*(uint8_t*)0x20001483 = 6;
*(uint32_t*)0x20001484 = 9;
syscall(SYS_ioctl, 0xffffff9c, 0x80104277ul, 0x200014c0ul);
break;
case 8:
memcpy((void*)0x20001500, "./file0\000", 8);
res = syscall(SYS_openat, 0xffffff9c, 0x20001500ul, 0x80ul, 0x55ul);
if (res != -1)
r[3] = res;
break;
case 9:
*(uint32_t*)0x20001540 = 5;
syscall(SYS_ioctl, r[3], 0x80045604ul, 0x20001540ul);
break;
case 10:
*(uint8_t*)0x20000000 = -1;
*(uint8_t*)0x20000001 = -1;
*(uint8_t*)0x20000002 = -1;
*(uint8_t*)0x20000003 = -1;
*(uint8_t*)0x20000004 = -1;
*(uint8_t*)0x20000005 = -1;
*(uint8_t*)0x20000006 = 0xaa;
*(uint8_t*)0x20000007 = 0xaa;
*(uint8_t*)0x20000008 = 0xaa;
*(uint8_t*)0x20000009 = 0xaa;
*(uint8_t*)0x2000000a = 0xaa;
*(uint8_t*)0x2000000b = 0xaa;
*(uint16_t*)0x2000000c = htobe16(0x8100);
STORE_BY_BITMASK(uint16_t, , 0x2000000e, 6, 0, 3);
STORE_BY_BITMASK(uint16_t, , 0x2000000e, 0, 3, 1);
STORE_BY_BITMASK(uint16_t, , 0x2000000e, 1, 4, 12);
*(uint16_t*)0x20000010 = htobe16(0x800);
STORE_BY_BITMASK(uint8_t, , 0x20000012, 0x21, 0, 4);
STORE_BY_BITMASK(uint8_t, , 0x20000012, 4, 4, 4);
STORE_BY_BITMASK(uint8_t, , 0x20000013, 0, 0, 2);
STORE_BY_BITMASK(uint8_t, , 0x20000013, 0x3d, 2, 6);
*(uint16_t*)0x20000014 = htobe16(0xce);
*(uint16_t*)0x20000016 = htobe16(0x66);
*(uint16_t*)0x20000018 = htobe16(8);
*(uint8_t*)0x2000001a = 0xb5;
*(uint8_t*)0x2000001b = 0x16;
*(uint16_t*)0x2000001c = htobe16(0);
*(uint32_t*)0x2000001e = htobe32(-1);
*(uint32_t*)0x20000022 = htobe32(0);
*(uint8_t*)0x20000026 = 0x89;
*(uint8_t*)0x20000027 = 0xb;
*(uint8_t*)0x20000028 = 0xc2;
*(uint8_t*)0x20000029 = 0xac;
*(uint8_t*)0x2000002a = 0x14;
*(uint8_t*)0x2000002b = 0;
*(uint8_t*)0x2000002c = 0xaa;
*(uint8_t*)0x2000002d = 0xac;
*(uint8_t*)0x2000002e = 0x14;
*(uint8_t*)0x2000002f = 0;
*(uint8_t*)0x20000030 = 0xaa;
*(uint8_t*)0x20000031 = 0x89;
*(uint8_t*)0x20000032 = 0x23;
*(uint8_t*)0x20000033 = 1;
*(uint32_t*)0x20000034 = htobe32(0xe0000001);
*(uint8_t*)0x20000038 = 0xac;
*(uint8_t*)0x20000039 = 0x14;
*(uint8_t*)0x2000003a = 0;
*(uint8_t*)0x2000003b = 0xbb;
*(uint8_t*)0x2000003c = 0xac;
*(uint8_t*)0x2000003d = 0x14;
*(uint8_t*)0x2000003e = 0;
*(uint8_t*)0x2000003f = 0xbb;
*(uint8_t*)0x20000040 = 0xac;
*(uint8_t*)0x20000041 = 0x14;
*(uint8_t*)0x20000042 = 0;
*(uint8_t*)0x20000043 = 0xaa;
*(uint32_t*)0x20000044 = htobe32(-1);
*(uint32_t*)0x20000048 = htobe32(-1);
*(uint32_t*)0x2000004c = htobe32(0);
*(uint32_t*)0x20000050 = htobe32(-1);
*(uint8_t*)0x20000054 = 0x88;
*(uint8_t*)0x20000055 = 0xc;
memcpy((void*)0x20000056, "\xf6\xc9\xd8\x8d\x8d\x28\xf6\x03\xdf\x8e", 10);
*(uint8_t*)0x20000060 = 0x82;
*(uint8_t*)0x20000061 = 0x11;
memcpy((void*)0x20000062, "\x44\x8b\xc1\x9f\x8c\x32\xca\xd3\xee\xd7\xba\xeb\x39\x39\x23", 15);
*(uint8_t*)0x20000071 = 0x89;
*(uint8_t*)0x20000072 = 0x1b;
*(uint8_t*)0x20000073 = 7;
*(uint32_t*)0x20000074 = htobe32(-1);
*(uint32_t*)0x20000078 = htobe32(0);
*(uint32_t*)0x2000007c = htobe32(0);
*(uint32_t*)0x20000080 = htobe32(0xe0000002);
*(uint32_t*)0x20000084 = htobe32(0x100);
*(uint32_t*)0x20000088 = htobe32(0xe0000002);
*(uint8_t*)0x2000008c = 0x83;
*(uint8_t*)0x2000008d = 7;
*(uint8_t*)0x2000008e = 7;
*(uint32_t*)0x2000008f = htobe32(0xe0000001);
*(uint8_t*)0x20000096 = 0xc;
*(uint8_t*)0x20000097 = 2;
*(uint16_t*)0x20000098 = htobe16(0);
*(uint8_t*)0x2000009a = 0xf2;
*(uint8_t*)0x2000009b = 0x1f;
*(uint16_t*)0x2000009c = 0;
STORE_BY_BITMASK(uint8_t, , 0x2000009e, 0x10, 0, 4);
STORE_BY_BITMASK(uint8_t, , 0x2000009e, 4, 4, 4);
STORE_BY_BITMASK(uint8_t, , 0x2000009f, 2, 0, 2);
STORE_BY_BITMASK(uint8_t, , 0x2000009f, 0x1f, 2, 6);
*(uint16_t*)0x200000a0 = htobe16(0xf63);
*(uint16_t*)0x200000a2 = htobe16(0x65);
*(uint16_t*)0x200000a4 = htobe16(0xdfc5);
*(uint8_t*)0x200000a6 = 0x97;
*(uint8_t*)0x200000a7 = 0xf0;
*(uint16_t*)0x200000a8 = htobe16(0x20);
*(uint32_t*)0x200000aa = htobe32(0);
*(uint32_t*)0x200000ae = htobe32(-1);
*(uint8_t*)0x200000b2 = 0;
*(uint8_t*)0x200000b3 = 7;
*(uint8_t*)0x200000b4 = 0x1b;
*(uint8_t*)0x200000b5 = 8;
*(uint32_t*)0x200000b6 = htobe32(-1);
*(uint32_t*)0x200000ba = htobe32(-1);
*(uint32_t*)0x200000be = htobe32(0xe0000002);
*(uint32_t*)0x200000c2 = htobe32(0xe0000002);
*(uint32_t*)0x200000c6 = htobe32(0xe0000001);
*(uint32_t*)0x200000ca = htobe32(0x80);
*(uint8_t*)0x200000ce = 0x89;
*(uint8_t*)0x200000cf = 7;
*(uint8_t*)0x200000d0 = 0xfc;
*(uint32_t*)0x200000d1 = htobe32(0x7f000001);
*(uint8_t*)0x200000d5 = 0x94;
*(uint8_t*)0x200000d6 = 6;
*(uint32_t*)0x200000d7 = htobe32(3);
memcpy((void*)0x200000de, "\xa2\x33", 2);
struct csum_inet csum_1;
csum_inet_init(&csum_1);
csum_inet_update(&csum_1, (const uint8_t*)0x20000096, 74);
*(uint16_t*)0x20000098 = csum_inet_digest(&csum_1);
struct csum_inet csum_2;
csum_inet_init(&csum_2);
csum_inet_update(&csum_2, (const uint8_t*)0x20000012, 132);
*(uint16_t*)0x2000001c = csum_inet_digest(&csum_2);
break;
case 11:
memcpy((void*)0x20000100, "\x45\xde\x03\x0f\xaa\xf3\xac\x44\xc1\x78\xe8\x28\xc4\x21\x21\x5d\x69\x65\x66\x46\x0f\x38\x17\x45\x00\xe6\x00\x8c\x6c\xef\x0e\x43\x0f\x01\xdb\xc4\x41\x8f\x2a\x53\x0a", 41);
syz_execute_func(0x20000100);
break;
case 12:
break;
case 13:
syz_open_pts();
break;
}
}
int main(void)
{
syscall(SYS_mmap, 0x20000000ul, 0x1000000ul, 3ul, 0x1012ul, -1, 0ul, 0ul);
use_temporary_dir();
do_sandbox_none();
return 0;
}
<stdin>:332:4: error: misleading indentation; statement is not part of the previous 'if' [-Werror,-Wmisleading-indentation]
kill_and_wait(pid, &status);
^
<stdin>:330:3: note: previous statement is here
if (current_time_ms() - start < 5000)
^
1 error generated.
compiler invocation: c++ [-o /tmp/syz-executor700845959 -DGOOS_openbsd=1 -DGOARCH_amd64=1 -DHOSTGOOS_openbsd=1 -x c - -m64 -static -lutil -O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wframe-larger-than=16384]
--- FAIL: TestGenerate/openbsd/amd64/8 (6.15s)
csource_test.go:124: opts: {Threaded:true Collide:false Repeat:true RepeatTimes:0 Procs:0 Slowdown:1 Sandbox: Fault:false FaultCall:0 FaultNth:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false USB:false VhciInjection:false Wifi:false Sysctl:false UseTmpDir:true HandleSegv:false Repro:false Trace:false}
program:
socketpair(0x18, 0x1, 0x9e, &(0x7f0000000000)={<r0=>0xffffffffffffffff, <r1=>0xffffffffffffffff})
bind(r1, &(0x7f0000000040)=@un=@abs={0x0, 0x0, 0x2}, 0x8)
getpeername$unix(r1, &(0x7f0000000080)=@abs, &(0x7f00000000c0)=0x8)
getpeername(r1, &(0x7f0000000100)=@in, &(0x7f0000000140)=0xc)
r2 = accept(r0, &(0x7f0000000180)=@in, &(0x7f00000001c0)=0xc)
readv(r2, &(0x7f0000001340)=[{&(0x7f0000000200)=""/121, 0x79}, {&(0x7f0000000280)=""/4096, 0x1000}, {&(0x7f0000001280)=""/180, 0xb4}], 0x3)
recvfrom(r0, &(0x7f0000001380)=""/145, 0x91, 0x801, &(0x7f0000001440)=@un=@abs={0x0, 0x0, 0x2}, 0x8)
ioctl$BIOCSETWF(0xffffffffffffff9c, 0x80104277, &(0x7f00000014c0)={0x1, &(0x7f0000001480)=[{0x6, 0x50, 0x6, 0x9}]})
r3 = openat(0xffffffffffffff9c, &(0x7f0000001500)='./file0\x00', 0x80, 0x55)
ioctl$VMM_IOC_TERM(r3, 0x80045604, &(0x7f0000001540)={0x5})
syz_emit_ethernet(0xe0, &(0x7f0000000000)={@broadcast, @local, [{[], {0x8100, 0x6, 0x0, 0x1}}], {@ipv4={0x800, {{0x21, 0x4, 0x0, 0x3d, 0xce, 0x66, 0x8, 0xb5, 0x16, 0x0, @broadcast, @empty, {[@ssrr={0x89, 0xb, 0xc2, [@local={0xac, 0x14, 0x0}, @local={0xac, 0x14, 0x0}]}, @ssrr={0x89, 0x23, 0x1, [@multicast1, @remote={0xac, 0x14, 0x0}, @remote={0xac, 0x14, 0x0}, @local={0xac, 0x14, 0x0}, @broadcast, @broadcast, @empty, @broadcast]}, @generic={0x88, 0xc, "f6c9d88d8d28f603df8e"}, @generic={0x82, 0x11, "448bc19f8c32cad3eed7baeb393923"}, @ssrr={0x89, 0x1b, 0x7, [@broadcast, @empty, @empty, @multicast2, @rand_addr=0x100, @multicast2]}, @lsrr={0x83, 0x7, 0x7, [@multicast1]}]}}, @icmp=@parameter_prob={0xc, 0x2, 0x0, 0xf2, 0x1f, 0x0, {0x10, 0x4, 0x2, 0x1f, 0xf63, 0x65, 0xdfc5, 0x97, 0xf0, 0x20, @empty, @broadcast, {[@end, @rr={0x7, 0x1b, 0x8, [@broadcast, @broadcast, @multicast2, @multicast2, @multicast1, @rand_addr=0x80]}, @ssrr={0x89, 0x7, 0xfc, [@loopback]}, @ra={0x94, 0x6, 0x3}]}}, "a233"}}}}})
syz_execute_func(&(0x7f0000000100)="45de030faaf3ac44c178e828c421215d696566460f38174500e6008c6cef0e430f01dbc4418f2a530a")
syz_extract_tcp_res(&(0x7f0000000140), 0x800, 0x1000)
syz_open_pts()
csource_test.go:125: failed to build program:
// autogenerated by syzkaller (https://github.com/google/syzkaller)
#define _GNU_SOURCE
#include <dirent.h>
#include <endian.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/stat.h>
#include <sys/syscall.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <termios.h>
#include <time.h>
#include <unistd.h>
#include <util.h>
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 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;
}
#define BITMASK(bf_off,bf_len) (((1ull << (bf_len)) - 1) << (bf_off))
#define STORE_BY_BITMASK(type,htobe,addr,val,bf_off,bf_len) *(type*)(addr) = htobe((htobe(*(type*)(addr)) & ~BITMASK((bf_off), (bf_len))) | (((type)(val) << (bf_off)) & BITMASK((bf_off), (bf_len))))
struct csum_inet {
uint32_t acc;
};
static void csum_inet_init(struct csum_inet* csum)
{
csum->acc = 0;
}
static void csum_inet_update(struct csum_inet* csum, const uint8_t* data, size_t length)
{
if (length == 0)
return;
size_t i = 0;
for (; i < length - 1; i += 2)
csum->acc += *(uint16_t*)&data[i];
if (length & 1)
csum->acc += le16toh((uint16_t)data[length - 1]);
while (csum->acc > 0xffff)
csum->acc = (csum->acc & 0xffff) + (csum->acc >> 16);
}
static uint16_t csum_inet_digest(struct csum_inet* csum)
{
return ~csum->acc;
}
#define __syscall syscall
static uintptr_t syz_open_pts(void)
{
int master, slave;
if (openpty(&master, &slave, NULL, NULL, NULL) == -1)
return -1;
if (dup2(master, master + 100) != -1)
close(master);
return slave;
}
static long syz_execute_func(volatile long text)
{
((void (*)(void))(text))();
return 0;
}
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 < 14; 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++) {
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[4] = {0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff};
void execute_call(int call)
{
intptr_t res = 0;
switch (call) {
case 0:
res = syscall(SYS_socketpair, 0x18ul, 1ul, 0x9e, 0x20000000ul);
if (res != -1) {
r[0] = *(uint32_t*)0x20000000;
r[1] = *(uint32_t*)0x20000004;
}
break;
case 1:
*(uint16_t*)0x20000040 = 0;
*(uint8_t*)0x20000042 = 0;
*(uint32_t*)0x20000044 = 0x4e22;
syscall(SYS_bind, r[1], 0x20000040ul, 8ul);
break;
case 2:
*(uint32_t*)0x200000c0 = 8;
syscall(SYS_getpeername, r[1], 0x20000080ul, 0x200000c0ul);
break;
case 3:
*(uint32_t*)0x20000140 = 0xc;
syscall(SYS_getpeername, r[1], 0x20000100ul, 0x20000140ul);
break;
case 4:
*(uint32_t*)0x200001c0 = 0xc;
res = syscall(SYS_accept, r[0], 0x20000180ul, 0x200001c0ul);
if (res != -1)
r[2] = res;
break;
case 5:
*(uint64_t*)0x20001340 = 0x20000200;
*(uint64_t*)0x20001348 = 0x79;
*(uint64_t*)0x20001350 = 0x20000280;
*(uint64_t*)0x20001358 = 0x1000;
*(uint64_t*)0x20001360 = 0x20001280;
*(uint64_t*)0x20001368 = 0xb4;
syscall(SYS_readv, r[2], 0x20001340ul, 3ul);
break;
case 6:
*(uint16_t*)0x20001440 = 0;
*(uint8_t*)0x20001442 = 0;
*(uint32_t*)0x20001444 = 0x4e22;
syscall(SYS_recvfrom, r[0], 0x20001380ul, 0x91ul, 0x801ul, 0x20001440ul, 8ul);
break;
case 7:
*(uint32_t*)0x200014c0 = 1;
*(uint64_t*)0x200014c8 = 0x20001480;
*(uint16_t*)0x20001480 = 6;
*(uint8_t*)0x20001482 = 0x50;
*(uint8_t*)0x20001483 = 6;
*(uint32_t*)0x20001484 = 9;
syscall(SYS_ioctl, 0xffffff9c, 0x80104277ul, 0x200014c0ul);
break;
case 8:
memcpy((void*)0x20001500, "./file0\000", 8);
res = syscall(SYS_openat, 0xffffff9c, 0x20001500ul, 0x80ul, 0x55ul);
if (res != -1)
r[3] = res;
break;
case 9:
*(uint32_t*)0x20001540 = 5;
syscall(SYS_ioctl, r[3], 0x80045604ul, 0x20001540ul);
break;
case 10:
*(uint8_t*)0x20000000 = -1;
*(uint8_t*)0x20000001 = -1;
*(uint8_t*)0x20000002 = -1;
*(uint8_t*)0x20000003 = -1;
*(uint8_t*)0x20000004 = -1;
*(uint8_t*)0x20000005 = -1;
*(uint8_t*)0x20000006 = 0xaa;
*(uint8_t*)0x20000007 = 0xaa;
*(uint8_t*)0x20000008 = 0xaa;
*(uint8_t*)0x20000009 = 0xaa;
*(uint8_t*)0x2000000a = 0xaa;
*(uint8_t*)0x2000000b = 0xaa;
*(uint16_t*)0x2000000c = htobe16(0x8100);
STORE_BY_BITMASK(uint16_t, , 0x2000000e, 6, 0, 3);
STORE_BY_BITMASK(uint16_t, , 0x2000000e, 0, 3, 1);
STORE_BY_BITMASK(uint16_t, , 0x2000000e, 1, 4, 12);
*(uint16_t*)0x20000010 = htobe16(0x800);
STORE_BY_BITMASK(uint8_t, , 0x20000012, 0x21, 0, 4);
STORE_BY_BITMASK(uint8_t, , 0x20000012, 4, 4, 4);
STORE_BY_BITMASK(uint8_t, , 0x20000013, 0, 0, 2);
STORE_BY_BITMASK(uint8_t, , 0x20000013, 0x3d, 2, 6);
*(uint16_t*)0x20000014 = htobe16(0xce);
*(uint16_t*)0x20000016 = htobe16(0x66);
*(uint16_t*)0x20000018 = htobe16(8);
*(uint8_t*)0x2000001a = 0xb5;
*(uint8_t*)0x2000001b = 0x16;
*(uint16_t*)0x2000001c = htobe16(0);
*(uint32_t*)0x2000001e = htobe32(-1);
*(uint32_t*)0x20000022 = htobe32(0);
*(uint8_t*)0x20000026 = 0x89;
*(uint8_t*)0x20000027 = 0xb;
*(uint8_t*)0x20000028 = 0xc2;
*(uint8_t*)0x20000029 = 0xac;
*(uint8_t*)0x2000002a = 0x14;
*(uint8_t*)0x2000002b = 0;
*(uint8_t*)0x2000002c = 0xaa;
*(uint8_t*)0x2000002d = 0xac;
*(uint8_t*)0x2000002e = 0x14;
*(uint8_t*)0x2000002f = 0;
*(uint8_t*)0x20000030 = 0xaa;
*(uint8_t*)0x20000031 = 0x89;
*(uint8_t*)0x20000032 = 0x23;
*(uint8_t*)0x20000033 = 1;
*(uint32_t*)0x20000034 = htobe32(0xe0000001);
*(uint8_t*)0x20000038 = 0xac;
*(uint8_t*)0x20000039 = 0x14;
*(uint8_t*)0x2000003a = 0;
*(uint8_t*)0x2000003b = 0xbb;
*(uint8_t*)0x2000003c = 0xac;
*(uint8_t*)0x2000003d = 0x14;
*(uint8_t*)0x2000003e = 0;
*(uint8_t*)0x2000003f = 0xbb;
*(uint8_t*)0x20000040 = 0xac;
*(uint8_t*)0x20000041 = 0x14;
*(uint8_t*)0x20000042 = 0;
*(uint8_t*)0x20000043 = 0xaa;
*(uint32_t*)0x20000044 = htobe32(-1);
*(uint32_t*)0x20000048 = htobe32(-1);
*(uint32_t*)0x2000004c = htobe32(0);
*(uint32_t*)0x20000050 = htobe32(-1);
*(uint8_t*)0x20000054 = 0x88;
*(uint8_t*)0x20000055 = 0xc;
memcpy((void*)0x20000056, "\xf6\xc9\xd8\x8d\x8d\x28\xf6\x03\xdf\x8e", 10);
*(uint8_t*)0x20000060 = 0x82;
*(uint8_t*)0x20000061 = 0x11;
memcpy((void*)0x20000062, "\x44\x8b\xc1\x9f\x8c\x32\xca\xd3\xee\xd7\xba\xeb\x39\x39\x23", 15);
*(uint8_t*)0x20000071 = 0x89;
*(uint8_t*)0x20000072 = 0x1b;
*(uint8_t*)0x20000073 = 7;
*(uint32_t*)0x20000074 = htobe32(-1);
*(uint32_t*)0x20000078 = htobe32(0);
*(uint32_t*)0x2000007c = htobe32(0);
*(uint32_t*)0x20000080 = htobe32(0xe0000002);
*(uint32_t*)0x20000084 = htobe32(0x100);
*(uint32_t*)0x20000088 = htobe32(0xe0000002);
*(uint8_t*)0x2000008c = 0x83;
*(uint8_t*)0x2000008d = 7;
*(uint8_t*)0x2000008e = 7;
*(uint32_t*)0x2000008f = htobe32(0xe0000001);
*(uint8_t*)0x20000096 = 0xc;
*(uint8_t*)0x20000097 = 2;
*(uint16_t*)0x20000098 = htobe16(0);
*(uint8_t*)0x2000009a = 0xf2;
*(uint8_t*)0x2000009b = 0x1f;
*(uint16_t*)0x2000009c = 0;
STORE_BY_BITMASK(uint8_t, , 0x2000009e, 0x10, 0, 4);
STORE_BY_BITMASK(uint8_t, , 0x2000009e, 4, 4, 4);
STORE_BY_BITMASK(uint8_t, , 0x2000009f, 2, 0, 2);
STORE_BY_BITMASK(uint8_t, , 0x2000009f, 0x1f, 2, 6);
*(uint16_t*)0x200000a0 = htobe16(0xf63);
*(uint16_t*)0x200000a2 = htobe16(0x65);
*(uint16_t*)0x200000a4 = htobe16(0xdfc5);
*(uint8_t*)0x200000a6 = 0x97;
*(uint8_t*)0x200000a7 = 0xf0;
*(uint16_t*)0x200000a8 = htobe16(0x20);
*(uint32_t*)0x200000aa = htobe32(0);
*(uint32_t*)0x200000ae = htobe32(-1);
*(uint8_t*)0x200000b2 = 0;
*(uint8_t*)0x200000b3 = 7;
*(uint8_t*)0x200000b4 = 0x1b;
*(uint8_t*)0x200000b5 = 8;
*(uint32_t*)0x200000b6 = htobe32(-1);
*(uint32_t*)0x200000ba = htobe32(-1);
*(uint32_t*)0x200000be = htobe32(0xe0000002);
*(uint32_t*)0x200000c2 = htobe32(0xe0000002);
*(uint32_t*)0x200000c6 = htobe32(0xe0000001);
*(uint32_t*)0x200000ca = htobe32(0x80);
*(uint8_t*)0x200000ce = 0x89;
*(uint8_t*)0x200000cf = 7;
*(uint8_t*)0x200000d0 = 0xfc;
*(uint32_t*)0x200000d1 = htobe32(0x7f000001);
*(uint8_t*)0x200000d5 = 0x94;
*(uint8_t*)0x200000d6 = 6;
*(uint32_t*)0x200000d7 = htobe32(3);
memcpy((void*)0x200000de, "\xa2\x33", 2);
struct csum_inet csum_1;
csum_inet_init(&csum_1);
csum_inet_update(&csum_1, (const uint8_t*)0x20000096, 74);
*(uint16_t*)0x20000098 = csum_inet_digest(&csum_1);
struct csum_inet csum_2;
csum_inet_init(&csum_2);
csum_inet_update(&csum_2, (const uint8_t*)0x20000012, 132);
*(uint16_t*)0x2000001c = csum_inet_digest(&csum_2);
break;
case 11:
memcpy((void*)0x20000100, "\x45\xde\x03\x0f\xaa\xf3\xac\x44\xc1\x78\xe8\x28\xc4\x21\x21\x5d\x69\x65\x66\x46\x0f\x38\x17\x45\x00\xe6\x00\x8c\x6c\xef\x0e\x43\x0f\x01\xdb\xc4\x41\x8f\x2a\x53\x0a", 41);
syz_execute_func(0x20000100);
break;
case 12:
break;
case 13:
syz_open_pts();
break;
}
}
int main(void)
{
syscall(SYS_mmap, 0x20000000ul, 0x1000000ul, 3ul, 0x1012ul, -1, 0ul, 0ul);
use_temporary_dir();
loop();
return 0;
}
<stdin>:305:4: error: misleading indentation; statement is not part of the previous 'if' [-Werror,-Wmisleading-indentation]
kill_and_wait(pid, &status);
^
<stdin>:303:3: note: previous statement is here
if (current_time_ms() - start < 5000)
^
1 error generated.
compiler invocation: c++ [-o /tmp/syz-executor760706874 -DGOOS_openbsd=1 -DGOARCH_amd64=1 -DHOSTGOOS_openbsd=1 -x c - -m64 -static -lutil -O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wframe-larger-than=16384]
--- FAIL: TestGenerate/openbsd/amd64/15 (6.55s)
csource_test.go:124: opts: {Threaded:true Collide:true Repeat:true RepeatTimes:0 Procs:2 Slowdown:1 Sandbox:none Fault:false FaultCall:0 FaultNth:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false USB:false VhciInjection:false Wifi:false Sysctl:false UseTmpDir:true HandleSegv:false Repro:true Trace:false}
program:
socketpair(0x18, 0x1, 0x9e, &(0x7f0000000000)={<r0=>0xffffffffffffffff, <r1=>0xffffffffffffffff})
bind(r1, &(0x7f0000000040)=@un=@abs={0x0, 0x0, 0x2}, 0x8)
getpeername$unix(r1, &(0x7f0000000080)=@abs, &(0x7f00000000c0)=0x8)
getpeername(r1, &(0x7f0000000100)=@in, &(0x7f0000000140)=0xc)
r2 = accept(r0, &(0x7f0000000180)=@in, &(0x7f00000001c0)=0xc)
readv(r2, &(0x7f0000001340)=[{&(0x7f0000000200)=""/121, 0x79}, {&(0x7f0000000280)=""/4096, 0x1000}, {&(0x7f0000001280)=""/180, 0xb4}], 0x3)
recvfrom(r0, &(0x7f0000001380)=""/145, 0x91, 0x801, &(0x7f0000001440)=@un=@abs={0x0, 0x0, 0x2}, 0x8)
ioctl$BIOCSETWF(0xffffffffffffff9c, 0x80104277, &(0x7f00000014c0)={0x1, &(0x7f0000001480)=[{0x6, 0x50, 0x6, 0x9}]})
r3 = openat(0xffffffffffffff9c, &(0x7f0000001500)='./file0\x00', 0x80, 0x55)
ioctl$VMM_IOC_TERM(r3, 0x80045604, &(0x7f0000001540)={0x5})
syz_emit_ethernet(0xe0, &(0x7f0000000000)={@broadcast, @local, [{[], {0x8100, 0x6, 0x0, 0x1}}], {@ipv4={0x800, {{0x21, 0x4, 0x0, 0x3d, 0xce, 0x66, 0x8, 0xb5, 0x16, 0x0, @broadcast, @empty, {[@ssrr={0x89, 0xb, 0xc2, [@local={0xac, 0x14, 0x0}, @local={0xac, 0x14, 0x0}]}, @ssrr={0x89, 0x23, 0x1, [@multicast1, @remote={0xac, 0x14, 0x0}, @remote={0xac, 0x14, 0x0}, @local={0xac, 0x14, 0x0}, @broadcast, @broadcast, @empty, @broadcast]}, @generic={0x88, 0xc, "f6c9d88d8d28f603df8e"}, @generic={0x82, 0x11, "448bc19f8c32cad3eed7baeb393923"}, @ssrr={0x89, 0x1b, 0x7, [@broadcast, @empty, @empty, @multicast2, @rand_addr=0x100, @multicast2]}, @lsrr={0x83, 0x7, 0x7, [@multicast1]}]}}, @icmp=@parameter_prob={0xc, 0x2, 0x0, 0xf2, 0x1f, 0x0, {0x10, 0x4, 0x2, 0x1f, 0xf63, 0x65, 0xdfc5, 0x97, 0xf0, 0x20, @empty, @broadcast, {[@end, @rr={0x7, 0x1b, 0x8, [@broadcast, @broadcast, @multicast2, @multicast2, @multicast1, @rand_addr=0x80]}, @ssrr={0x89, 0x7, 0xfc, [@loopback]}, @ra={0x94, 0x6, 0x3}]}}, "a233"}}}}})
syz_execute_func(&(0x7f0000000100)="45de030faaf3ac44c178e828c421215d696566460f38174500e6008c6cef0e430f01dbc4418f2a530a")
syz_extract_tcp_res(&(0x7f0000000140), 0x800, 0x1000)
syz_open_pts()
csource_test.go:125: failed to build program:
// autogenerated by syzkaller (https://github.com/google/syzkaller)
#define _GNU_SOURCE
#include <dirent.h>
#include <endian.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/resource.h>
#include <sys/stat.h>
#include <sys/syscall.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <termios.h>
#include <time.h>
#include <unistd.h>
#include <util.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 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 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;
}
#define BITMASK(bf_off,bf_len) (((1ull << (bf_len)) - 1) << (bf_off))
#define STORE_BY_BITMASK(type,htobe,addr,val,bf_off,bf_len) *(type*)(addr) = htobe((htobe(*(type*)(addr)) & ~BITMASK((bf_off), (bf_len))) | (((type)(val) << (bf_off)) & BITMASK((bf_off), (bf_len))))
struct csum_inet {
uint32_t acc;
};
static void csum_inet_init(struct csum_inet* csum)
{
csum->acc = 0;
}
static void csum_inet_update(struct csum_inet* csum, const uint8_t* data, size_t length)
{
if (length == 0)
return;
size_t i = 0;
for (; i < length - 1; i += 2)
csum->acc += *(uint16_t*)&data[i];
if (length & 1)
csum->acc += le16toh((uint16_t)data[length - 1]);
while (csum->acc > 0xffff)
csum->acc = (csum->acc & 0xffff) + (csum->acc >> 16);
}
static uint16_t csum_inet_digest(struct csum_inet* csum)
{
return ~csum->acc;
}
#define __syscall syscall
static uintptr_t syz_open_pts(void)
{
int master, slave;
if (openpty(&master, &slave, NULL, NULL, NULL) == -1)
return -1;
if (dup2(master, master + 100) != -1)
close(master);
return slave;
}
static void sandbox_common()
{
struct rlimit rlim;
rlim.rlim_cur = rlim.rlim_max = 8 << 20;
setrlimit(RLIMIT_MEMLOCK, &rlim);
rlim.rlim_cur = rlim.rlim_max = 1 << 20;
setrlimit(RLIMIT_FSIZE, &rlim);
rlim.rlim_cur = rlim.rlim_max = 1 << 20;
setrlimit(RLIMIT_STACK, &rlim);
rlim.rlim_cur = rlim.rlim_max = 0;
setrlimit(RLIMIT_CORE, &rlim);
rlim.rlim_cur = rlim.rlim_max = 256;
setrlimit(RLIMIT_NOFILE, &rlim);
}
static void loop();
static int do_sandbox_none(void)
{
sandbox_common();
loop();
return 0;
}
static long syz_execute_func(volatile long text)
{
((void (*)(void))(text))();
return 0;
}
struct thread_t {
int created, call;
event_t ready, done;
};
static struct thread_t threads[16];
static void execute_call(int call);
static int running;
static void* thr(void* arg)
{
struct thread_t* th = (struct thread_t*)arg;
for (;;) {
event_wait(&th->ready);
event_reset(&th->ready);
execute_call(th->call);
__atomic_fetch_sub(&running, 1, __ATOMIC_RELAXED);
event_set(&th->done);
}
return 0;
}
static void execute_one(void)
{
if (write(1, "executing program\n", sizeof("executing program\n") - 1)) {
}
int i, call, thread;
int collide = 0;
again:
for (call = 0; call < 14; call++) {
for (thread = 0; thread < (int)(sizeof(threads) / sizeof(threads[0])); thread++) {
struct thread_t* th = &threads[thread];
if (!th->created) {
th->created = 1;
event_init(&th->ready);
event_init(&th->done);
event_set(&th->done);
thread_start(thr, th);
}
if (!event_isset(&th->done))
continue;
event_reset(&th->done);
th->call = call;
__atomic_fetch_add(&running, 1, __ATOMIC_RELAXED);
event_set(&th->ready);
if (collide && (call % 2) == 0)
break;
event_timedwait(&th->done, 50);
break;
}
}
for (i = 0; i < 100 && __atomic_load_n(&running, __ATOMIC_RELAXED); i++)
sleep_ms(1);
if (!collide) {
collide = 1;
goto again;
}
}
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[4] = {0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff};
void execute_call(int call)
{
intptr_t res = 0;
switch (call) {
case 0:
res = syscall(SYS_socketpair, 0x18ul, 1ul, 0x9e, 0x20000000ul);
if (res != -1) {
r[0] = *(uint32_t*)0x20000000;
r[1] = *(uint32_t*)0x20000004;
}
break;
case 1:
*(uint16_t*)0x20000040 = 0;
*(uint8_t*)0x20000042 = 0;
*(uint32_t*)0x20000044 = 0x4e22 + procid*4;
syscall(SYS_bind, r[1], 0x20000040ul, 8ul);
break;
case 2:
*(uint32_t*)0x200000c0 = 8;
syscall(SYS_getpeername, r[1], 0x20000080ul, 0x200000c0ul);
break;
case 3:
*(uint32_t*)0x20000140 = 0xc;
syscall(SYS_getpeername, r[1], 0x20000100ul, 0x20000140ul);
break;
case 4:
*(uint32_t*)0x200001c0 = 0xc;
res = syscall(SYS_accept, r[0], 0x20000180ul, 0x200001c0ul);
if (res != -1)
r[2] = res;
break;
case 5:
*(uint64_t*)0x20001340 = 0x20000200;
*(uint64_t*)0x20001348 = 0x79;
*(uint64_t*)0x20001350 = 0x20000280;
*(uint64_t*)0x20001358 = 0x1000;
*(uint64_t*)0x20001360 = 0x20001280;
*(uint64_t*)0x20001368 = 0xb4;
syscall(SYS_readv, r[2], 0x20001340ul, 3ul);
break;
case 6:
*(uint16_t*)0x20001440 = 0;
*(uint8_t*)0x20001442 = 0;
*(uint32_t*)0x20001444 = 0x4e22 + procid*4;
syscall(SYS_recvfrom, r[0], 0x20001380ul, 0x91ul, 0x801ul, 0x20001440ul, 8ul);
break;
case 7:
*(uint32_t*)0x200014c0 = 1;
*(uint64_t*)0x200014c8 = 0x20001480;
*(uint16_t*)0x20001480 = 6;
*(uint8_t*)0x20001482 = 0x50;
*(uint8_t*)0x20001483 = 6;
*(uint32_t*)0x20001484 = 9;
syscall(SYS_ioctl, 0xffffff9c, 0x80104277ul, 0x200014c0ul);
break;
case 8:
memcpy((void*)0x20001500, "./file0\000", 8);
res = syscall(SYS_openat, 0xffffff9c, 0x20001500ul, 0x80ul, 0x55ul);
if (res != -1)
r[3] = res;
break;
case 9:
*(uint32_t*)0x20001540 = 5;
syscall(SYS_ioctl, r[3], 0x80045604ul, 0x20001540ul);
break;
case 10:
*(uint8_t*)0x20000000 = -1;
*(uint8_t*)0x20000001 = -1;
*(uint8_t*)0x20000002 = -1;
*(uint8_t*)0x20000003 = -1;
*(uint8_t*)0x20000004 = -1;
*(uint8_t*)0x20000005 = -1;
*(uint8_t*)0x20000006 = 0xaa;
*(uint8_t*)0x20000007 = 0xaa;
*(uint8_t*)0x20000008 = 0xaa;
*(uint8_t*)0x20000009 = 0xaa;
*(uint8_t*)0x2000000a = 0xaa;
*(uint8_t*)0x2000000b = 0xaa;
*(uint16_t*)0x2000000c = htobe16(0x8100);
STORE_BY_BITMASK(uint16_t, , 0x2000000e, 6, 0, 3);
STORE_BY_BITMASK(uint16_t, , 0x2000000e, 0, 3, 1);
STORE_BY_BITMASK(uint16_t, , 0x2000000e, 1, 4, 12);
*(uint16_t*)0x20000010 = htobe16(0x800);
STORE_BY_BITMASK(uint8_t, , 0x20000012, 0x21, 0, 4);
STORE_BY_BITMASK(uint8_t, , 0x20000012, 4, 4, 4);
STORE_BY_BITMASK(uint8_t, , 0x20000013, 0, 0, 2);
STORE_BY_BITMASK(uint8_t, , 0x20000013, 0x3d, 2, 6);
*(uint16_t*)0x20000014 = htobe16(0xce);
*(uint16_t*)0x20000016 = htobe16(0x66);
*(uint16_t*)0x20000018 = htobe16(8);
*(uint8_t*)0x2000001a = 0xb5;
*(uint8_t*)0x2000001b = 0x16;
*(uint16_t*)0x2000001c = htobe16(0);
*(uint32_t*)0x2000001e = htobe32(-1);
*(uint32_t*)0x20000022 = htobe32(0);
*(uint8_t*)0x20000026 = 0x89;
*(uint8_t*)0x20000027 = 0xb;
*(uint8_t*)0x20000028 = 0xc2;
*(uint8_t*)0x20000029 = 0xac;
*(uint8_t*)0x2000002a = 0x14;
*(uint8_t*)0x2000002b = 0 + procid*1;
*(uint8_t*)0x2000002c = 0xaa;
*(uint8_t*)0x2000002d = 0xac;
*(uint8_t*)0x2000002e = 0x14;
*(uint8_t*)0x2000002f = 0 + procid*1;
*(uint8_t*)0x20000030 = 0xaa;
*(uint8_t*)0x20000031 = 0x89;
*(uint8_t*)0x20000032 = 0x23;
*(uint8_t*)0x20000033 = 1;
*(uint32_t*)0x20000034 = htobe32(0xe0000001);
*(uint8_t*)0x20000038 = 0xac;
*(uint8_t*)0x20000039 = 0x14;
*(uint8_t*)0x2000003a = 0 + procid*1;
*(uint8_t*)0x2000003b = 0xbb;
*(uint8_t*)0x2000003c = 0xac;
*(uint8_t*)0x2000003d = 0x14;
*(uint8_t*)0x2000003e = 0 + procid*1;
*(uint8_t*)0x2000003f = 0xbb;
*(uint8_t*)0x20000040 = 0xac;
*(uint8_t*)0x20000041 = 0x14;
*(uint8_t*)0x20000042 = 0 + procid*1;
*(uint8_t*)0x20000043 = 0xaa;
*(uint32_t*)0x20000044 = htobe32(-1);
*(uint32_t*)0x20000048 = htobe32(-1);
*(uint32_t*)0x2000004c = htobe32(0);
*(uint32_t*)0x20000050 = htobe32(-1);
*(uint8_t*)0x20000054 = 0x88;
*(uint8_t*)0x20000055 = 0xc;
memcpy((void*)0x20000056, "\xf6\xc9\xd8\x8d\x8d\x28\xf6\x03\xdf\x8e", 10);
*(uint8_t*)0x20000060 = 0x82;
*(uint8_t*)0x20000061 = 0x11;
memcpy((void*)0x20000062, "\x44\x8b\xc1\x9f\x8c\x32\xca\xd3\xee\xd7\xba\xeb\x39\x39\x23", 15);
*(uint8_t*)0x20000071 = 0x89;
*(uint8_t*)0x20000072 = 0x1b;
*(uint8_t*)0x20000073 = 7;
*(uint32_t*)0x20000074 = htobe32(-1);
*(uint32_t*)0x20000078 = htobe32(0);
*(uint32_t*)0x2000007c = htobe32(0);
*(uint32_t*)0x20000080 = htobe32(0xe0000002);
*(uint32_t*)0x20000084 = htobe32(0x100);
*(uint32_t*)0x20000088 = htobe32(0xe0000002);
*(uint8_t*)0x2000008c = 0x83;
*(uint8_t*)0x2000008d = 7;
*(uint8_t*)0x2000008e = 7;
*(uint32_t*)0x2000008f = htobe32(0xe0000001);
*(uint8_t*)0x20000096 = 0xc;
*(uint8_t*)0x20000097 = 2;
*(uint16_t*)0x20000098 = htobe16(0);
*(uint8_t*)0x2000009a = 0xf2;
*(uint8_t*)0x2000009b = 0x1f;
*(uint16_t*)0x2000009c = 0;
STORE_BY_BITMASK(uint8_t, , 0x2000009e, 0x10, 0, 4);
STORE_BY_BITMASK(uint8_t, , 0x2000009e, 4, 4, 4);
STORE_BY_BITMASK(uint8_t, , 0x2000009f, 2, 0, 2);
STORE_BY_BITMASK(uint8_t, , 0x2000009f, 0x1f, 2, 6);
*(uint16_t*)0x200000a0 = htobe16(0xf63);
*(uint16_t*)0x200000a2 = htobe16(0x65);
*(uint16_t*)0x200000a4 = htobe16(0xdfc5);
*(uint8_t*)0x200000a6 = 0x97;
*(uint8_t*)0x200000a7 = 0xf0;
*(uint16_t*)0x200000a8 = htobe16(0x20);
*(uint32_t*)0x200000aa = htobe32(0);
*(uint32_t*)0x200000ae = htobe32(-1);
*(uint8_t*)0x200000b2 = 0;
*(uint8_t*)0x200000b3 = 7;
*(uint8_t*)0x200000b4 = 0x1b;
*(uint8_t*)0x200000b5 = 8;
*(uint32_t*)0x200000b6 = htobe32(-1);
*(uint32_t*)0x200000ba = htobe32(-1);
*(uint32_t*)0x200000be = htobe32(0xe0000002);
*(uint32_t*)0x200000c2 = htobe32(0xe0000002);
*(uint32_t*)0x200000c6 = htobe32(0xe0000001);
*(uint32_t*)0x200000ca = htobe32(0x80);
*(uint8_t*)0x200000ce = 0x89;
*(uint8_t*)0x200000cf = 7;
*(uint8_t*)0x200000d0 = 0xfc;
*(uint32_t*)0x200000d1 = htobe32(0x7f000001);
*(uint8_t*)0x200000d5 = 0x94;
*(uint8_t*)0x200000d6 = 6;
*(uint32_t*)0x200000d7 = htobe32(3);
memcpy((void*)0x200000de, "\xa2\x33", 2);
struct csum_inet csum_1;
csum_inet_init(&csum_1);
csum_inet_update(&csum_1, (const uint8_t*)0x20000096, 74);
*(uint16_t*)0x20000098 = csum_inet_digest(&csum_1);
struct csum_inet csum_2;
csum_inet_init(&csum_2);
csum_inet_update(&csum_2, (const uint8_t*)0x20000012, 132);
*(uint16_t*)0x2000001c = csum_inet_digest(&csum_2);
break;
case 11:
memcpy((void*)0x20000100, "\x45\xde\x03\x0f\xaa\xf3\xac\x44\xc1\x78\xe8\x28\xc4\x21\x21\x5d\x69\x65\x66\x46\x0f\x38\x17\x45\x00\xe6\x00\x8c\x6c\xef\x0e\x43\x0f\x01\xdb\xc4\x41\x8f\x2a\x53\x0a", 41);
syz_execute_func(0x20000100);
break;
case 12:
break;
case 13:
syz_open_pts();
break;
}
}
int main(void)
{
syscall(SYS_mmap, 0x20000000ul, 0x1000000ul, 3ul, 0x1012ul, -1, 0ul, 0ul);
for (procid = 0; procid < 2; procid++) {
if (fork() == 0) {
use_temporary_dir();
do_sandbox_none();
}
}
sleep(1000000);
return 0;
}
<stdin>:342:4: error: misleading indentation; statement is not part of the previous 'if' [-Werror,-Wmisleading-indentation]
kill_and_wait(pid, &status);
^
<stdin>:340:3: note: previous statement is here
if (current_time_ms() - start < 5000)
^
1 error generated.
compiler invocation: c++ [-o /tmp/syz-executor412859080 -DGOOS_openbsd=1 -DGOARCH_amd64=1 -DHOSTGOOS_openbsd=1 -x c - -m64 -static -lutil -O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wframe-larger-than=16384]
--- FAIL: TestGenerate/openbsd/amd64/0 (7.77s)
csource_test.go:124: opts: {Threaded:false Collide:false Repeat:true RepeatTimes:0 Procs:0 Slowdown:1 Sandbox:none Fault:false FaultCall:0 FaultNth:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false USB:false VhciInjection:false Wifi:false Sysctl:false UseTmpDir:true HandleSegv:false Repro:false Trace:false}
program:
socketpair(0x18, 0x1, 0x9e, &(0x7f0000000000)={<r0=>0xffffffffffffffff, <r1=>0xffffffffffffffff})
bind(r1, &(0x7f0000000040)=@un=@abs={0x0, 0x0, 0x2}, 0x8)
getpeername$unix(r1, &(0x7f0000000080)=@abs, &(0x7f00000000c0)=0x8)
getpeername(r1, &(0x7f0000000100)=@in, &(0x7f0000000140)=0xc)
r2 = accept(r0, &(0x7f0000000180)=@in, &(0x7f00000001c0)=0xc)
readv(r2, &(0x7f0000001340)=[{&(0x7f0000000200)=""/121, 0x79}, {&(0x7f0000000280)=""/4096, 0x1000}, {&(0x7f0000001280)=""/180, 0xb4}], 0x3)
recvfrom(r0, &(0x7f0000001380)=""/145, 0x91, 0x801, &(0x7f0000001440)=@un=@abs={0x0, 0x0, 0x2}, 0x8)
ioctl$BIOCSETWF(0xffffffffffffff9c, 0x80104277, &(0x7f00000014c0)={0x1, &(0x7f0000001480)=[{0x6, 0x50, 0x6, 0x9}]})
r3 = openat(0xffffffffffffff9c, &(0x7f0000001500)='./file0\x00', 0x80, 0x55)
ioctl$VMM_IOC_TERM(r3, 0x80045604, &(0x7f0000001540)={0x5})
syz_emit_ethernet(0xe0, &(0x7f0000000000)={@broadcast, @local, [{[], {0x8100, 0x6, 0x0, 0x1}}], {@ipv4={0x800, {{0x21, 0x4, 0x0, 0x3d, 0xce, 0x66, 0x8, 0xb5, 0x16, 0x0, @broadcast, @empty, {[@ssrr={0x89, 0xb, 0xc2, [@local={0xac, 0x14, 0x0}, @local={0xac, 0x14, 0x0}]}, @ssrr={0x89, 0x23, 0x1, [@multicast1, @remote={0xac, 0x14, 0x0}, @remote={0xac, 0x14, 0x0}, @local={0xac, 0x14, 0x0}, @broadcast, @broadcast, @empty, @broadcast]}, @generic={0x88, 0xc, "f6c9d88d8d28f603df8e"}, @generic={0x82, 0x11, "448bc19f8c32cad3eed7baeb393923"}, @ssrr={0x89, 0x1b, 0x7, [@broadcast, @empty, @empty, @multicast2, @rand_addr=0x100, @multicast2]}, @lsrr={0x83, 0x7, 0x7, [@multicast1]}]}}, @icmp=@parameter_prob={0xc, 0x2, 0x0, 0xf2, 0x1f, 0x0, {0x10, 0x4, 0x2, 0x1f, 0xf63, 0x65, 0xdfc5, 0x97, 0xf0, 0x20, @empty, @broadcast, {[@end, @rr={0x7, 0x1b, 0x8, [@broadcast, @broadcast, @multicast2, @multicast2, @multicast1, @rand_addr=0x80]}, @ssrr={0x89, 0x7, 0xfc, [@loopback]}, @ra={0x94, 0x6, 0x3}]}}, "a233"}}}}})
syz_execute_func(&(0x7f0000000100)="45de030faaf3ac44c178e828c421215d696566460f38174500e6008c6cef0e430f01dbc4418f2a530a")
syz_extract_tcp_res(&(0x7f0000000140), 0x800, 0x1000)
syz_open_pts()
csource_test.go:125: failed to build program:
// autogenerated by syzkaller (https://github.com/google/syzkaller)
#define _GNU_SOURCE
#include <dirent.h>
#include <endian.h>
#include <errno.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/resource.h>
#include <sys/stat.h>
#include <sys/syscall.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <termios.h>
#include <time.h>
#include <unistd.h>
#include <util.h>
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);
}
#define BITMASK(bf_off,bf_len) (((1ull << (bf_len)) - 1) << (bf_off))
#define STORE_BY_BITMASK(type,htobe,addr,val,bf_off,bf_len) *(type*)(addr) = htobe((htobe(*(type*)(addr)) & ~BITMASK((bf_off), (bf_len))) | (((type)(val) << (bf_off)) & BITMASK((bf_off), (bf_len))))
struct csum_inet {
uint32_t acc;
};
static void csum_inet_init(struct csum_inet* csum)
{
csum->acc = 0;
}
static void csum_inet_update(struct csum_inet* csum, const uint8_t* data, size_t length)
{
if (length == 0)
return;
size_t i = 0;
for (; i < length - 1; i += 2)
csum->acc += *(uint16_t*)&data[i];
if (length & 1)
csum->acc += le16toh((uint16_t)data[length - 1]);
while (csum->acc > 0xffff)
csum->acc = (csum->acc & 0xffff) + (csum->acc >> 16);
}
static uint16_t csum_inet_digest(struct csum_inet* csum)
{
return ~csum->acc;
}
#define __syscall syscall
static uintptr_t syz_open_pts(void)
{
int master, slave;
if (openpty(&master, &slave, NULL, NULL, NULL) == -1)
return -1;
if (dup2(master, master + 100) != -1)
close(master);
return slave;
}
static void sandbox_common()
{
if (setsid() == -1)
exit(1);
struct rlimit rlim;
rlim.rlim_cur = rlim.rlim_max = 8 << 20;
setrlimit(RLIMIT_MEMLOCK, &rlim);
rlim.rlim_cur = rlim.rlim_max = 1 << 20;
setrlimit(RLIMIT_FSIZE, &rlim);
rlim.rlim_cur = rlim.rlim_max = 1 << 20;
setrlimit(RLIMIT_STACK, &rlim);
rlim.rlim_cur = rlim.rlim_max = 0;
setrlimit(RLIMIT_CORE, &rlim);
rlim.rlim_cur = rlim.rlim_max = 256;
setrlimit(RLIMIT_NOFILE, &rlim);
}
static void loop();
static int do_sandbox_none(void)
{
sandbox_common();
loop();
return 0;
}
static long syz_execute_func(volatile long text)
{
((void (*)(void))(text))();
return 0;
}
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[4] = {0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff};
void execute_one(void)
{
intptr_t res = 0;
res = syscall(SYS_socketpair, 0x18ul, 1ul, 0x9e, 0x20000000ul);
if (res != -1) {
r[0] = *(uint32_t*)0x20000000;
r[1] = *(uint32_t*)0x20000004;
}
*(uint16_t*)0x20000040 = 0;
*(uint8_t*)0x20000042 = 0;
*(uint32_t*)0x20000044 = 0x4e22;
syscall(SYS_bind, r[1], 0x20000040ul, 8ul);
*(uint32_t*)0x200000c0 = 8;
syscall(SYS_getpeername, r[1], 0x20000080ul, 0x200000c0ul);
*(uint32_t*)0x20000140 = 0xc;
syscall(SYS_getpeername, r[1], 0x20000100ul, 0x20000140ul);
*(uint32_t*)0x200001c0 = 0xc;
res = syscall(SYS_accept, r[0], 0x20000180ul, 0x200001c0ul);
if (res != -1)
r[2] = res;
*(uint64_t*)0x20001340 = 0x20000200;
*(uint64_t*)0x20001348 = 0x79;
*(uint64_t*)0x20001350 = 0x20000280;
*(uint64_t*)0x20001358 = 0x1000;
*(uint64_t*)0x20001360 = 0x20001280;
*(uint64_t*)0x20001368 = 0xb4;
syscall(SYS_readv, r[2], 0x20001340ul, 3ul);
*(uint16_t*)0x20001440 = 0;
*(uint8_t*)0x20001442 = 0;
*(uint32_t*)0x20001444 = 0x4e22;
syscall(SYS_recvfrom, r[0], 0x20001380ul, 0x91ul, 0x801ul, 0x20001440ul, 8ul);
*(uint32_t*)0x200014c0 = 1;
*(uint64_t*)0x200014c8 = 0x20001480;
*(uint16_t*)0x20001480 = 6;
*(uint8_t*)0x20001482 = 0x50;
*(uint8_t*)0x20001483 = 6;
*(uint32_t*)0x20001484 = 9;
syscall(SYS_ioctl, 0xffffff9c, 0x80104277ul, 0x200014c0ul);
memcpy((void*)0x20001500, "./file0\000", 8);
res = syscall(SYS_openat, 0xffffff9c, 0x20001500ul, 0x80ul, 0x55ul);
if (res != -1)
r[3] = res;
*(uint32_t*)0x20001540 = 5;
syscall(SYS_ioctl, r[3], 0x80045604ul, 0x20001540ul);
*(uint8_t*)0x20000000 = -1;
*(uint8_t*)0x20000001 = -1;
*(uint8_t*)0x20000002 = -1;
*(uint8_t*)0x20000003 = -1;
*(uint8_t*)0x20000004 = -1;
*(uint8_t*)0x20000005 = -1;
*(uint8_t*)0x20000006 = 0xaa;
*(uint8_t*)0x20000007 = 0xaa;
*(uint8_t*)0x20000008 = 0xaa;
*(uint8_t*)0x20000009 = 0xaa;
*(uint8_t*)0x2000000a = 0xaa;
*(uint8_t*)0x2000000b = 0xaa;
*(uint16_t*)0x2000000c = htobe16(0x8100);
STORE_BY_BITMASK(uint16_t, , 0x2000000e, 6, 0, 3);
STORE_BY_BITMASK(uint16_t, , 0x2000000e, 0, 3, 1);
STORE_BY_BITMASK(uint16_t, , 0x2000000e, 1, 4, 12);
*(uint16_t*)0x20000010 = htobe16(0x800);
STORE_BY_BITMASK(uint8_t, , 0x20000012, 0x21, 0, 4);
STORE_BY_BITMASK(uint8_t, , 0x20000012, 4, 4, 4);
STORE_BY_BITMASK(uint8_t, , 0x20000013, 0, 0, 2);
STORE_BY_BITMASK(uint8_t, , 0x20000013, 0x3d, 2, 6);
*(uint16_t*)0x20000014 = htobe16(0xce);
*(uint16_t*)0x20000016 = htobe16(0x66);
*(uint16_t*)0x20000018 = htobe16(8);
*(uint8_t*)0x2000001a = 0xb5;
*(uint8_t*)0x2000001b = 0x16;
*(uint16_t*)0x2000001c = htobe16(0);
*(uint32_t*)0x2000001e = htobe32(-1);
*(uint32_t*)0x20000022 = htobe32(0);
*(uint8_t*)0x20000026 = 0x89;
*(uint8_t*)0x20000027 = 0xb;
*(uint8_t*)0x20000028 = 0xc2;
*(uint8_t*)0x20000029 = 0xac;
*(uint8_t*)0x2000002a = 0x14;
*(uint8_t*)0x2000002b = 0;
*(uint8_t*)0x2000002c = 0xaa;
*(uint8_t*)0x2000002d = 0xac;
*(uint8_t*)0x2000002e = 0x14;
*(uint8_t*)0x2000002f = 0;
*(uint8_t*)0x20000030 = 0xaa;
*(uint8_t*)0x20000031 = 0x89;
*(uint8_t*)0x20000032 = 0x23;
*(uint8_t*)0x20000033 = 1;
*(uint32_t*)0x20000034 = htobe32(0xe0000001);
*(uint8_t*)0x20000038 = 0xac;
*(uint8_t*)0x20000039 = 0x14;
*(uint8_t*)0x2000003a = 0;
*(uint8_t*)0x2000003b = 0xbb;
*(uint8_t*)0x2000003c = 0xac;
*(uint8_t*)0x2000003d = 0x14;
*(uint8_t*)0x2000003e = 0;
*(uint8_t*)0x2000003f = 0xbb;
*(uint8_t*)0x20000040 = 0xac;
*(uint8_t*)0x20000041 = 0x14;
*(uint8_t*)0x20000042 = 0;
*(uint8_t*)0x20000043 = 0xaa;
*(uint32_t*)0x20000044 = htobe32(-1);
*(uint32_t*)0x20000048 = htobe32(-1);
*(uint32_t*)0x2000004c = htobe32(0);
*(uint32_t*)0x20000050 = htobe32(-1);
*(uint8_t*)0x20000054 = 0x88;
*(uint8_t*)0x20000055 = 0xc;
memcpy((void*)0x20000056, "\xf6\xc9\xd8\x8d\x8d\x28\xf6\x03\xdf\x8e", 10);
*(uint8_t*)0x20000060 = 0x82;
*(uint8_t*)0x20000061 = 0x11;
memcpy((void*)0x20000062, "\x44\x8b\xc1\x9f\x8c\x32\xca\xd3\xee\xd7\xba\xeb\x39\x39\x23", 15);
*(uint8_t*)0x20000071 = 0x89;
*(uint8_t*)0x20000072 = 0x1b;
*(uint8_t*)0x20000073 = 7;
*(uint32_t*)0x20000074 = htobe32(-1);
*(uint32_t*)0x20000078 = htobe32(0);
*(uint32_t*)0x2000007c = htobe32(0);
*(uint32_t*)0x20000080 = htobe32(0xe0000002);
*(uint32_t*)0x20000084 = htobe32(0x100);
*(uint32_t*)0x20000088 = htobe32(0xe0000002);
*(uint8_t*)0x2000008c = 0x83;
*(uint8_t*)0x2000008d = 7;
*(uint8_t*)0x2000008e = 7;
*(uint32_t*)0x2000008f = htobe32(0xe0000001);
*(uint8_t*)0x20000096 = 0xc;
*(uint8_t*)0x20000097 = 2;
*(uint16_t*)0x20000098 = htobe16(0);
*(uint8_t*)0x2000009a = 0xf2;
*(uint8_t*)0x2000009b = 0x1f;
*(uint16_t*)0x2000009c = 0;
STORE_BY_BITMASK(uint8_t, , 0x2000009e, 0x10, 0, 4);
STORE_BY_BITMASK(uint8_t, , 0x2000009e, 4, 4, 4);
STORE_BY_BITMASK(uint8_t, , 0x2000009f, 2, 0, 2);
STORE_BY_BITMASK(uint8_t, , 0x2000009f, 0x1f, 2, 6);
*(uint16_t*)0x200000a0 = htobe16(0xf63);
*(uint16_t*)0x200000a2 = htobe16(0x65);
*(uint16_t*)0x200000a4 = htobe16(0xdfc5);
*(uint8_t*)0x200000a6 = 0x97;
*(uint8_t*)0x200000a7 = 0xf0;
*(uint16_t*)0x200000a8 = htobe16(0x20);
*(uint32_t*)0x200000aa = htobe32(0);
*(uint32_t*)0x200000ae = htobe32(-1);
*(uint8_t*)0x200000b2 = 0;
*(uint8_t*)0x200000b3 = 7;
*(uint8_t*)0x200000b4 = 0x1b;
*(uint8_t*)0x200000b5 = 8;
*(uint32_t*)0x200000b6 = htobe32(-1);
*(uint32_t*)0x200000ba = htobe32(-1);
*(uint32_t*)0x200000be = htobe32(0xe0000002);
*(uint32_t*)0x200000c2 = htobe32(0xe0000002);
*(uint32_t*)0x200000c6 = htobe32(0xe0000001);
*(uint32_t*)0x200000ca = htobe32(0x80);
*(uint8_t*)0x200000ce = 0x89;
*(uint8_t*)0x200000cf = 7;
*(uint8_t*)0x200000d0 = 0xfc;
*(uint32_t*)0x200000d1 = htobe32(0x7f000001);
*(uint8_t*)0x200000d5 = 0x94;
*(uint8_t*)0x200000d6 = 6;
*(uint32_t*)0x200000d7 = htobe32(3);
memcpy((void*)0x200000de, "\xa2\x33", 2);
struct csum_inet csum_1;
csum_inet_init(&csum_1);
csum_inet_update(&csum_1, (const uint8_t*)0x20000096, 74);
*(uint16_t*)0x20000098 = csum_inet_digest(&csum_1);
struct csum_inet csum_2;
csum_inet_init(&csum_2);
csum_inet_update(&csum_2, (const uint8_t*)0x20000012, 132);
*(uint16_t*)0x2000001c = csum_inet_digest(&csum_2);
memcpy((void*)0x20000100, "\x45\xde\x03\x0f\xaa\xf3\xac\x44\xc1\x78\xe8\x28\xc4\x21\x21\x5d\x69\x65\x66\x46\x0f\x38\x17\x45\x00\xe6\x00\x8c\x6c\xef\x0e\x43\x0f\x01\xdb\xc4\x41\x8f\x2a\x53\x0a", 41);
syz_execute_func(0x20000100);
syz_open_pts();
}
int main(void)
{
syscall(SYS_mmap, 0x20000000ul, 0x1000000ul, 3ul, 0x1012ul, -1, 0ul, 0ul);
use_temporary_dir();
do_sandbox_none();
return 0;
}
<stdin>:193:4: error: misleading indentation; statement is not part of the previous 'if' [-Werror,-Wmisleading-indentation]
kill_and_wait(pid, &status);
^
<stdin>:191:3: note: previous statement is here
if (current_time_ms() - start < 5000)
^
1 error generated.
compiler invocation: c++ [-o /tmp/syz-executor605434534 -DGOOS_openbsd=1 -DGOARCH_amd64=1 -DHOSTGOOS_openbsd=1 -x c - -m64 -static -lutil -O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wframe-larger-than=16384]
--- FAIL: TestGenerate/openbsd/amd64/11 (7.81s)
csource_test.go:124: opts: {Threaded:true Collide:false Repeat:true RepeatTimes:0 Procs:0 Slowdown:1 Sandbox:none Fault:false FaultCall:0 FaultNth:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false USB:false VhciInjection:false Wifi:false Sysctl:false UseTmpDir:false HandleSegv:false Repro:false Trace:false}
program:
socketpair(0x18, 0x1, 0x9e, &(0x7f0000000000)={<r0=>0xffffffffffffffff, <r1=>0xffffffffffffffff})
bind(r1, &(0x7f0000000040)=@un=@abs={0x0, 0x0, 0x2}, 0x8)
getpeername$unix(r1, &(0x7f0000000080)=@abs, &(0x7f00000000c0)=0x8)
getpeername(r1, &(0x7f0000000100)=@in, &(0x7f0000000140)=0xc)
r2 = accept(r0, &(0x7f0000000180)=@in, &(0x7f00000001c0)=0xc)
readv(r2, &(0x7f0000001340)=[{&(0x7f0000000200)=""/121, 0x79}, {&(0x7f0000000280)=""/4096, 0x1000}, {&(0x7f0000001280)=""/180, 0xb4}], 0x3)
recvfrom(r0, &(0x7f0000001380)=""/145, 0x91, 0x801, &(0x7f0000001440)=@un=@abs={0x0, 0x0, 0x2}, 0x8)
ioctl$BIOCSETWF(0xffffffffffffff9c, 0x80104277, &(0x7f00000014c0)={0x1, &(0x7f0000001480)=[{0x6, 0x50, 0x6, 0x9}]})
r3 = openat(0xffffffffffffff9c, &(0x7f0000001500)='./file0\x00', 0x80, 0x55)
ioctl$VMM_IOC_TERM(r3, 0x80045604, &(0x7f0000001540)={0x5})
syz_emit_ethernet(0xe0, &(0x7f0000000000)={@broadcast, @local, [{[], {0x8100, 0x6, 0x0, 0x1}}], {@ipv4={0x800, {{0x21, 0x4, 0x0, 0x3d, 0xce, 0x66, 0x8, 0xb5, 0x16, 0x0, @broadcast, @empty, {[@ssrr={0x89, 0xb, 0xc2, [@local={0xac, 0x14, 0x0}, @local={0xac, 0x14, 0x0}]}, @ssrr={0x89, 0x23, 0x1, [@multicast1, @remote={0xac, 0x14, 0x0}, @remote={0xac, 0x14, 0x0}, @local={0xac, 0x14, 0x0}, @broadcast, @broadcast, @empty, @broadcast]}, @generic={0x88, 0xc, "f6c9d88d8d28f603df8e"}, @generic={0x82, 0x11, "448bc19f8c32cad3eed7baeb393923"}, @ssrr={0x89, 0x1b, 0x7, [@broadcast, @empty, @empty, @multicast2, @rand_addr=0x100, @multicast2]}, @lsrr={0x83, 0x7, 0x7, [@multicast1]}]}}, @icmp=@parameter_prob={0xc, 0x2, 0x0, 0xf2, 0x1f, 0x0, {0x10, 0x4, 0x2, 0x1f, 0xf63, 0x65, 0xdfc5, 0x97, 0xf0, 0x20, @empty, @broadcast, {[@end, @rr={0x7, 0x1b, 0x8, [@broadcast, @broadcast, @multicast2, @multicast2, @multicast1, @rand_addr=0x80]}, @ssrr={0x89, 0x7, 0xfc, [@loopback]}, @ra={0x94, 0x6, 0x3}]}}, "a233"}}}}})
syz_execute_func(&(0x7f0000000100)="45de030faaf3ac44c178e828c421215d696566460f38174500e6008c6cef0e430f01dbc4418f2a530a")
syz_extract_tcp_res(&(0x7f0000000140), 0x800, 0x1000)
syz_open_pts()
csource_test.go:125: failed to build program:
// autogenerated by syzkaller (https://github.com/google/syzkaller)
#define _GNU_SOURCE
#include <endian.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/resource.h>
#include <sys/syscall.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <termios.h>
#include <time.h>
#include <unistd.h>
#include <util.h>
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;
}
#define BITMASK(bf_off,bf_len) (((1ull << (bf_len)) - 1) << (bf_off))
#define STORE_BY_BITMASK(type,htobe,addr,val,bf_off,bf_len) *(type*)(addr) = htobe((htobe(*(type*)(addr)) & ~BITMASK((bf_off), (bf_len))) | (((type)(val) << (bf_off)) & BITMASK((bf_off), (bf_len))))
struct csum_inet {
uint32_t acc;
};
static void csum_inet_init(struct csum_inet* csum)
{
csum->acc = 0;
}
static void csum_inet_update(struct csum_inet* csum, const uint8_t* data, size_t length)
{
if (length == 0)
return;
size_t i = 0;
for (; i < length - 1; i += 2)
csum->acc += *(uint16_t*)&data[i];
if (length & 1)
csum->acc += le16toh((uint16_t)data[length - 1]);
while (csum->acc > 0xffff)
csum->acc = (csum->acc & 0xffff) + (csum->acc >> 16);
}
static uint16_t csum_inet_digest(struct csum_inet* csum)
{
return ~csum->acc;
}
#define __syscall syscall
static uintptr_t syz_open_pts(void)
{
int master, slave;
if (openpty(&master, &slave, NULL, NULL, NULL) == -1)
return -1;
if (dup2(master, master + 100) != -1)
close(master);
return slave;
}
static void sandbox_common()
{
struct rlimit rlim;
rlim.rlim_cur = rlim.rlim_max = 8 << 20;
setrlimit(RLIMIT_MEMLOCK, &rlim);
rlim.rlim_cur = rlim.rlim_max = 1 << 20;
setrlimit(RLIMIT_FSIZE, &rlim);
rlim.rlim_cur = rlim.rlim_max = 1 << 20;
setrlimit(RLIMIT_STACK, &rlim);
rlim.rlim_cur = rlim.rlim_max = 0;
setrlimit(RLIMIT_CORE, &rlim);
rlim.rlim_cur = rlim.rlim_max = 256;
setrlimit(RLIMIT_NOFILE, &rlim);
}
static void loop();
static int do_sandbox_none(void)
{
sandbox_common();
loop();
return 0;
}
static long syz_execute_func(volatile long text)
{
((void (*)(void))(text))();
return 0;
}
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 < 14; 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_socketpair, 0x18ul, 1ul, 0x9e, 0x20000000ul);
if (res != -1) {
r[0] = *(uint32_t*)0x20000000;
r[1] = *(uint32_t*)0x20000004;
}
break;
case 1:
*(uint16_t*)0x20000040 = 0;
*(uint8_t*)0x20000042 = 0;
*(uint32_t*)0x20000044 = 0x4e22;
syscall(SYS_bind, r[1], 0x20000040ul, 8ul);
break;
case 2:
*(uint32_t*)0x200000c0 = 8;
syscall(SYS_getpeername, r[1], 0x20000080ul, 0x200000c0ul);
break;
case 3:
*(uint32_t*)0x20000140 = 0xc;
syscall(SYS_getpeername, r[1], 0x20000100ul, 0x20000140ul);
break;
case 4:
*(uint32_t*)0x200001c0 = 0xc;
res = syscall(SYS_accept, r[0], 0x20000180ul, 0x200001c0ul);
if (res != -1)
r[2] = res;
break;
case 5:
*(uint64_t*)0x20001340 = 0x20000200;
*(uint64_t*)0x20001348 = 0x79;
*(uint64_t*)0x20001350 = 0x20000280;
*(uint64_t*)0x20001358 = 0x1000;
*(uint64_t*)0x20001360 = 0x20001280;
*(uint64_t*)0x20001368 = 0xb4;
syscall(SYS_readv, r[2], 0x20001340ul, 3ul);
break;
case 6:
*(uint16_t*)0x20001440 = 0;
*(uint8_t*)0x20001442 = 0;
*(uint32_t*)0x20001444 = 0x4e22;
syscall(SYS_recvfrom, r[0], 0x20001380ul, 0x91ul, 0x801ul, 0x20001440ul, 8ul);
break;
case 7:
*(uint32_t*)0x200014c0 = 1;
*(uint64_t*)0x200014c8 = 0x20001480;
*(uint16_t*)0x20001480 = 6;
*(uint8_t*)0x20001482 = 0x50;
*(uint8_t*)0x20001483 = 6;
*(uint32_t*)0x20001484 = 9;
syscall(SYS_ioctl, 0xffffff9c, 0x80104277ul, 0x200014c0ul);
break;
case 8:
memcpy((void*)0x20001500, "./file0\000", 8);
res = syscall(SYS_openat, 0xffffff9c, 0x20001500ul, 0x80ul, 0x55ul);
if (res != -1)
r[3] = res;
break;
case 9:
*(uint32_t*)0x20001540 = 5;
syscall(SYS_ioctl, r[3], 0x80045604ul, 0x20001540ul);
break;
case 10:
*(uint8_t*)0x20000000 = -1;
*(uint8_t*)0x20000001 = -1;
*(uint8_t*)0x20000002 = -1;
*(uint8_t*)0x20000003 = -1;
*(uint8_t*)0x20000004 = -1;
*(uint8_t*)0x20000005 = -1;
*(uint8_t*)0x20000006 = 0xaa;
*(uint8_t*)0x20000007 = 0xaa;
*(uint8_t*)0x20000008 = 0xaa;
*(uint8_t*)0x20000009 = 0xaa;
*(uint8_t*)0x2000000a = 0xaa;
*(uint8_t*)0x2000000b = 0xaa;
*(uint16_t*)0x2000000c = htobe16(0x8100);
STORE_BY_BITMASK(uint16_t, , 0x2000000e, 6, 0, 3);
STORE_BY_BITMASK(uint16_t, , 0x2000000e, 0, 3, 1);
STORE_BY_BITMASK(uint16_t, , 0x2000000e, 1, 4, 12);
*(uint16_t*)0x20000010 = htobe16(0x800);
STORE_BY_BITMASK(uint8_t, , 0x20000012, 0x21, 0, 4);
STORE_BY_BITMASK(uint8_t, , 0x20000012, 4, 4, 4);
STORE_BY_BITMASK(uint8_t, , 0x20000013, 0, 0, 2);
STORE_BY_BITMASK(uint8_t, , 0x20000013, 0x3d, 2, 6);
*(uint16_t*)0x20000014 = htobe16(0xce);
*(uint16_t*)0x20000016 = htobe16(0x66);
*(uint16_t*)0x20000018 = htobe16(8);
*(uint8_t*)0x2000001a = 0xb5;
*(uint8_t*)0x2000001b = 0x16;
*(uint16_t*)0x2000001c = htobe16(0);
*(uint32_t*)0x2000001e = htobe32(-1);
*(uint32_t*)0x20000022 = htobe32(0);
*(uint8_t*)0x20000026 = 0x89;
*(uint8_t*)0x20000027 = 0xb;
*(uint8_t*)0x20000028 = 0xc2;
*(uint8_t*)0x20000029 = 0xac;
*(uint8_t*)0x2000002a = 0x14;
*(uint8_t*)0x2000002b = 0;
*(uint8_t*)0x2000002c = 0xaa;
*(uint8_t*)0x2000002d = 0xac;
*(uint8_t*)0x2000002e = 0x14;
*(uint8_t*)0x2000002f = 0;
*(uint8_t*)0x20000030 = 0xaa;
*(uint8_t*)0x20000031 = 0x89;
*(uint8_t*)0x20000032 = 0x23;
*(uint8_t*)0x20000033 = 1;
*(uint32_t*)0x20000034 = htobe32(0xe0000001);
*(uint8_t*)0x20000038 = 0xac;
*(uint8_t*)0x20000039 = 0x14;
*(uint8_t*)0x2000003a = 0;
*(uint8_t*)0x2000003b = 0xbb;
*(uint8_t*)0x2000003c = 0xac;
*(uint8_t*)0x2000003d = 0x14;
*(uint8_t*)0x2000003e = 0;
*(uint8_t*)0x2000003f = 0xbb;
*(uint8_t*)0x20000040 = 0xac;
*(uint8_t*)0x20000041 = 0x14;
*(uint8_t*)0x20000042 = 0;
*(uint8_t*)0x20000043 = 0xaa;
*(uint32_t*)0x20000044 = htobe32(-1);
*(uint32_t*)0x20000048 = htobe32(-1);
*(uint32_t*)0x2000004c = htobe32(0);
*(uint32_t*)0x20000050 = htobe32(-1);
*(uint8_t*)0x20000054 = 0x88;
*(uint8_t*)0x20000055 = 0xc;
memcpy((void*)0x20000056, "\xf6\xc9\xd8\x8d\x8d\x28\xf6\x03\xdf\x8e", 10);
*(uint8_t*)0x20000060 = 0x82;
*(uint8_t*)0x20000061 = 0x11;
memcpy((void*)0x20000062, "\x44\x8b\xc1\x9f\x8c\x32\xca\xd3\xee\xd7\xba\xeb\x39\x39\x23", 15);
*(uint8_t*)0x20000071 = 0x89;
*(uint8_t*)0x20000072 = 0x1b;
*(uint8_t*)0x20000073 = 7;
*(uint32_t*)0x20000074 = htobe32(-1);
*(uint32_t*)0x20000078 = htobe32(0);
*(uint32_t*)0x2000007c = htobe32(0);
*(uint32_t*)0x20000080 = htobe32(0xe0000002);
*(uint32_t*)0x20000084 = htobe32(0x100);
*(uint32_t*)0x20000088 = htobe32(0xe0000002);
*(uint8_t*)0x2000008c = 0x83;
*(uint8_t*)0x2000008d = 7;
*(uint8_t*)0x2000008e = 7;
*(uint32_t*)0x2000008f = htobe32(0xe0000001);
*(uint8_t*)0x20000096 = 0xc;
*(uint8_t*)0x20000097 = 2;
*(uint16_t*)0x20000098 = htobe16(0);
*(uint8_t*)0x2000009a = 0xf2;
*(uint8_t*)0x2000009b = 0x1f;
*(uint16_t*)0x2000009c = 0;
STORE_BY_BITMASK(uint8_t, , 0x2000009e, 0x10, 0, 4);
STORE_BY_BITMASK(uint8_t, , 0x2000009e, 4, 4, 4);
STORE_BY_BITMASK(uint8_t, , 0x2000009f, 2, 0, 2);
STORE_BY_BITMASK(uint8_t, , 0x2000009f, 0x1f, 2, 6);
*(uint16_t*)0x200000a0 = htobe16(0xf63);
*(uint16_t*)0x200000a2 = htobe16(0x65);
*(uint16_t*)0x200000a4 = htobe16(0xdfc5);
*(uint8_t*)0x200000a6 = 0x97;
*(uint8_t*)0x200000a7 = 0xf0;
*(uint16_t*)0x200000a8 = htobe16(0x20);
*(uint32_t*)0x200000aa = htobe32(0);
*(uint32_t*)0x200000ae = htobe32(-1);
*(uint8_t*)0x200000b2 = 0;
*(uint8_t*)0x200000b3 = 7;
*(uint8_t*)0x200000b4 = 0x1b;
*(uint8_t*)0x200000b5 = 8;
*(uint32_t*)0x200000b6 = htobe32(-1);
*(uint32_t*)0x200000ba = htobe32(-1);
*(uint32_t*)0x200000be = htobe32(0xe0000002);
*(uint32_t*)0x200000c2 = htobe32(0xe0000002);
*(uint32_t*)0x200000c6 = htobe32(0xe0000001);
*(uint32_t*)0x200000ca = htobe32(0x80);
*(uint8_t*)0x200000ce = 0x89;
*(uint8_t*)0x200000cf = 7;
*(uint8_t*)0x200000d0 = 0xfc;
*(uint32_t*)0x200000d1 = htobe32(0x7f000001);
*(uint8_t*)0x200000d5 = 0x94;
*(uint8_t*)0x200000d6 = 6;
*(uint32_t*)0x200000d7 = htobe32(3);
memcpy((void*)0x200000de, "\xa2\x33", 2);
struct csum_inet csum_1;
csum_inet_init(&csum_1);
csum_inet_update(&csum_1, (const uint8_t*)0x20000096, 74);
*(uint16_t*)0x20000098 = csum_inet_digest(&csum_1);
struct csum_inet csum_2;
csum_inet_init(&csum_2);
csum_inet_update(&csum_2, (const uint8_t*)0x20000012, 132);
*(uint16_t*)0x2000001c = csum_inet_digest(&csum_2);
break;
case 11:
memcpy((void*)0x20000100, "\x45\xde\x03\x0f\xaa\xf3\xac\x44\xc1\x78\xe8\x28\xc4\x21\x21\x5d\x69\x65\x66\x46\x0f\x38\x17\x45\x00\xe6\x00\x8c\x6c\xef\x0e\x43\x0f\x01\xdb\xc4\x41\x8f\x2a\x53\x0a", 41);
syz_execute_func(0x20000100);
break;
case 12:
break;
case 13:
syz_open_pts();
break;
}
}
int main(void)
{
syscall(SYS_mmap, 0x20000000ul, 0x1000000ul, 3ul, 0x1012ul, -1, 0ul, 0ul);
do_sandbox_none();
return 0;
}
<stdin>:278:4: error: misleading indentation; statement is not part of the previous 'if' [-Werror,-Wmisleading-indentation]
kill_and_wait(pid, &status);
^
<stdin>:276:3: note: previous statement is here
if (current_time_ms() - start < 5000)
^
1 error generated.
compiler invocation: c++ [-o /tmp/syz-executor091462571 -DGOOS_openbsd=1 -DGOARCH_amd64=1 -DHOSTGOOS_openbsd=1 -x c - -m64 -static -lutil -O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wframe-larger-than=16384]
--- FAIL: TestGenerate/openbsd/amd64/12 (8.07s)
csource_test.go:124: opts: {Threaded:true Collide:false Repeat:true RepeatTimes:0 Procs:0 Slowdown:1 Sandbox:none Fault:false FaultCall:0 FaultNth:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false USB:false VhciInjection:false Wifi:false Sysctl:false UseTmpDir:true HandleSegv:true Repro:false Trace:false}
program:
socketpair(0x18, 0x1, 0x9e, &(0x7f0000000000)={<r0=>0xffffffffffffffff, <r1=>0xffffffffffffffff})
bind(r1, &(0x7f0000000040)=@un=@abs={0x0, 0x0, 0x2}, 0x8)
getpeername$unix(r1, &(0x7f0000000080)=@abs, &(0x7f00000000c0)=0x8)
getpeername(r1, &(0x7f0000000100)=@in, &(0x7f0000000140)=0xc)
r2 = accept(r0, &(0x7f0000000180)=@in, &(0x7f00000001c0)=0xc)
readv(r2, &(0x7f0000001340)=[{&(0x7f0000000200)=""/121, 0x79}, {&(0x7f0000000280)=""/4096, 0x1000}, {&(0x7f0000001280)=""/180, 0xb4}], 0x3)
recvfrom(r0, &(0x7f0000001380)=""/145, 0x91, 0x801, &(0x7f0000001440)=@un=@abs={0x0, 0x0, 0x2}, 0x8)
ioctl$BIOCSETWF(0xffffffffffffff9c, 0x80104277, &(0x7f00000014c0)={0x1, &(0x7f0000001480)=[{0x6, 0x50, 0x6, 0x9}]})
r3 = openat(0xffffffffffffff9c, &(0x7f0000001500)='./file0\x00', 0x80, 0x55)
ioctl$VMM_IOC_TERM(r3, 0x80045604, &(0x7f0000001540)={0x5})
syz_emit_ethernet(0xe0, &(0x7f0000000000)={@broadcast, @local, [{[], {0x8100, 0x6, 0x0, 0x1}}], {@ipv4={0x800, {{0x21, 0x4, 0x0, 0x3d, 0xce, 0x66, 0x8, 0xb5, 0x16, 0x0, @broadcast, @empty, {[@ssrr={0x89, 0xb, 0xc2, [@local={0xac, 0x14, 0x0}, @local={0xac, 0x14, 0x0}]}, @ssrr={0x89, 0x23, 0x1, [@multicast1, @remote={0xac, 0x14, 0x0}, @remote={0xac, 0x14, 0x0}, @local={0xac, 0x14, 0x0}, @broadcast, @broadcast, @empty, @broadcast]}, @generic={0x88, 0xc, "f6c9d88d8d28f603df8e"}, @generic={0x82, 0x11, "448bc19f8c32cad3eed7baeb393923"}, @ssrr={0x89, 0x1b, 0x7, [@broadcast, @empty, @empty, @multicast2, @rand_addr=0x100, @multicast2]}, @lsrr={0x83, 0x7, 0x7, [@multicast1]}]}}, @icmp=@parameter_prob={0xc, 0x2, 0x0, 0xf2, 0x1f, 0x0, {0x10, 0x4, 0x2, 0x1f, 0xf63, 0x65, 0xdfc5, 0x97, 0xf0, 0x20, @empty, @broadcast, {[@end, @rr={0x7, 0x1b, 0x8, [@broadcast, @broadcast, @multicast2, @multicast2, @multicast1, @rand_addr=0x80]}, @ssrr={0x89, 0x7, 0xfc, [@loopback]}, @ra={0x94, 0x6, 0x3}]}}, "a233"}}}}})
syz_execute_func(&(0x7f0000000100)="45de030faaf3ac44c178e828c421215d696566460f38174500e6008c6cef0e430f01dbc4418f2a530a")
syz_extract_tcp_res(&(0x7f0000000140), 0x800, 0x1000)
syz_open_pts()
csource_test.go:125: failed to build program:
// autogenerated by syzkaller (https://github.com/google/syzkaller)
#define _GNU_SOURCE
#include <dirent.h>
#include <endian.h>
#include <errno.h>
#include <pthread.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/resource.h>
#include <sys/stat.h>
#include <sys/syscall.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <termios.h>
#include <time.h>
#include <unistd.h>
#include <util.h>
static __thread int skip_segv;
static __thread jmp_buf segv_env;
static void segv_handler(int sig, siginfo_t* info, void* ctx)
{
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 (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 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;
}
#define BITMASK(bf_off,bf_len) (((1ull << (bf_len)) - 1) << (bf_off))
#define STORE_BY_BITMASK(type,htobe,addr,val,bf_off,bf_len) *(type*)(addr) = htobe((htobe(*(type*)(addr)) & ~BITMASK((bf_off), (bf_len))) | (((type)(val) << (bf_off)) & BITMASK((bf_off), (bf_len))))
struct csum_inet {
uint32_t acc;
};
static void csum_inet_init(struct csum_inet* csum)
{
csum->acc = 0;
}
static void csum_inet_update(struct csum_inet* csum, const uint8_t* data, size_t length)
{
if (length == 0)
return;
size_t i = 0;
for (; i < length - 1; i += 2)
csum->acc += *(uint16_t*)&data[i];
if (length & 1)
csum->acc += le16toh((uint16_t)data[length - 1]);
while (csum->acc > 0xffff)
csum->acc = (csum->acc & 0xffff) + (csum->acc >> 16);
}
static uint16_t csum_inet_digest(struct csum_inet* csum)
{
return ~csum->acc;
}
#define __syscall syscall
static uintptr_t syz_open_pts(void)
{
int master, slave;
if (openpty(&master, &slave, NULL, NULL, NULL) == -1)
return -1;
if (dup2(master, master + 100) != -1)
close(master);
return slave;
}
static void sandbox_common()
{
struct rlimit rlim;
rlim.rlim_cur = rlim.rlim_max = 8 << 20;
setrlimit(RLIMIT_MEMLOCK, &rlim);
rlim.rlim_cur = rlim.rlim_max = 1 << 20;
setrlimit(RLIMIT_FSIZE, &rlim);
rlim.rlim_cur = rlim.rlim_max = 1 << 20;
setrlimit(RLIMIT_STACK, &rlim);
rlim.rlim_cur = rlim.rlim_max = 0;
setrlimit(RLIMIT_CORE, &rlim);
rlim.rlim_cur = rlim.rlim_max = 256;
setrlimit(RLIMIT_NOFILE, &rlim);
}
static void loop();
static int do_sandbox_none(void)
{
sandbox_common();
loop();
return 0;
}
static long syz_execute_func(volatile long text)
{
((void (*)(void))(text))();
return 0;
}
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 < 14; 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++) {
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[4] = {0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff};
void execute_call(int call)
{
intptr_t res = 0;
switch (call) {
case 0:
res = syscall(SYS_socketpair, 0x18ul, 1ul, 0x9e, 0x20000000ul);
if (res != -1) {
NONFAILING(r[0] = *(uint32_t*)0x20000000);
NONFAILING(r[1] = *(uint32_t*)0x20000004);
}
break;
case 1:
NONFAILING(*(uint16_t*)0x20000040 = 0);
NONFAILING(*(uint8_t*)0x20000042 = 0);
NONFAILING(*(uint32_t*)0x20000044 = 0x4e22);
syscall(SYS_bind, r[1], 0x20000040ul, 8ul);
break;
case 2:
NONFAILING(*(uint32_t*)0x200000c0 = 8);
syscall(SYS_getpeername, r[1], 0x20000080ul, 0x200000c0ul);
break;
case 3:
NONFAILING(*(uint32_t*)0x20000140 = 0xc);
syscall(SYS_getpeername, r[1], 0x20000100ul, 0x20000140ul);
break;
case 4:
NONFAILING(*(uint32_t*)0x200001c0 = 0xc);
res = syscall(SYS_accept, r[0], 0x20000180ul, 0x200001c0ul);
if (res != -1)
r[2] = res;
break;
case 5:
NONFAILING(*(uint64_t*)0x20001340 = 0x20000200);
NONFAILING(*(uint64_t*)0x20001348 = 0x79);
NONFAILING(*(uint64_t*)0x20001350 = 0x20000280);
NONFAILING(*(uint64_t*)0x20001358 = 0x1000);
NONFAILING(*(uint64_t*)0x20001360 = 0x20001280);
NONFAILING(*(uint64_t*)0x20001368 = 0xb4);
syscall(SYS_readv, r[2], 0x20001340ul, 3ul);
break;
case 6:
NONFAILING(*(uint16_t*)0x20001440 = 0);
NONFAILING(*(uint8_t*)0x20001442 = 0);
NONFAILING(*(uint32_t*)0x20001444 = 0x4e22);
syscall(SYS_recvfrom, r[0], 0x20001380ul, 0x91ul, 0x801ul, 0x20001440ul, 8ul);
break;
case 7:
NONFAILING(*(uint32_t*)0x200014c0 = 1);
NONFAILING(*(uint64_t*)0x200014c8 = 0x20001480);
NONFAILING(*(uint16_t*)0x20001480 = 6);
NONFAILING(*(uint8_t*)0x20001482 = 0x50);
NONFAILING(*(uint8_t*)0x20001483 = 6);
NONFAILING(*(uint32_t*)0x20001484 = 9);
syscall(SYS_ioctl, 0xffffff9c, 0x80104277ul, 0x200014c0ul);
break;
case 8:
NONFAILING(memcpy((void*)0x20001500, "./file0\000", 8));
res = syscall(SYS_openat, 0xffffff9c, 0x20001500ul, 0x80ul, 0x55ul);
if (res != -1)
r[3] = res;
break;
case 9:
NONFAILING(*(uint32_t*)0x20001540 = 5);
syscall(SYS_ioctl, r[3], 0x80045604ul, 0x20001540ul);
break;
case 10:
NONFAILING(*(uint8_t*)0x20000000 = -1);
NONFAILING(*(uint8_t*)0x20000001 = -1);
NONFAILING(*(uint8_t*)0x20000002 = -1);
NONFAILING(*(uint8_t*)0x20000003 = -1);
NONFAILING(*(uint8_t*)0x20000004 = -1);
NONFAILING(*(uint8_t*)0x20000005 = -1);
NONFAILING(*(uint8_t*)0x20000006 = 0xaa);
NONFAILING(*(uint8_t*)0x20000007 = 0xaa);
NONFAILING(*(uint8_t*)0x20000008 = 0xaa);
NONFAILING(*(uint8_t*)0x20000009 = 0xaa);
NONFAILING(*(uint8_t*)0x2000000a = 0xaa);
NONFAILING(*(uint8_t*)0x2000000b = 0xaa);
NONFAILING(*(uint16_t*)0x2000000c = htobe16(0x8100));
NONFAILING(STORE_BY_BITMASK(uint16_t, , 0x2000000e, 6, 0, 3));
NONFAILING(STORE_BY_BITMASK(uint16_t, , 0x2000000e, 0, 3, 1));
NONFAILING(STORE_BY_BITMASK(uint16_t, , 0x2000000e, 1, 4, 12));
NONFAILING(*(uint16_t*)0x20000010 = htobe16(0x800));
NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x20000012, 0x21, 0, 4));
NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x20000012, 4, 4, 4));
NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x20000013, 0, 0, 2));
NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x20000013, 0x3d, 2, 6));
NONFAILING(*(uint16_t*)0x20000014 = htobe16(0xce));
NONFAILING(*(uint16_t*)0x20000016 = htobe16(0x66));
NONFAILING(*(uint16_t*)0x20000018 = htobe16(8));
NONFAILING(*(uint8_t*)0x2000001a = 0xb5);
NONFAILING(*(uint8_t*)0x2000001b = 0x16);
NONFAILING(*(uint16_t*)0x2000001c = htobe16(0));
NONFAILING(*(uint32_t*)0x2000001e = htobe32(-1));
NONFAILING(*(uint32_t*)0x20000022 = htobe32(0));
NONFAILING(*(uint8_t*)0x20000026 = 0x89);
NONFAILING(*(uint8_t*)0x20000027 = 0xb);
NONFAILING(*(uint8_t*)0x20000028 = 0xc2);
NONFAILING(*(uint8_t*)0x20000029 = 0xac);
NONFAILING(*(uint8_t*)0x2000002a = 0x14);
NONFAILING(*(uint8_t*)0x2000002b = 0);
NONFAILING(*(uint8_t*)0x2000002c = 0xaa);
NONFAILING(*(uint8_t*)0x2000002d = 0xac);
NONFAILING(*(uint8_t*)0x2000002e = 0x14);
NONFAILING(*(uint8_t*)0x2000002f = 0);
NONFAILING(*(uint8_t*)0x20000030 = 0xaa);
NONFAILING(*(uint8_t*)0x20000031 = 0x89);
NONFAILING(*(uint8_t*)0x20000032 = 0x23);
NONFAILING(*(uint8_t*)0x20000033 = 1);
NONFAILING(*(uint32_t*)0x20000034 = htobe32(0xe0000001));
NONFAILING(*(uint8_t*)0x20000038 = 0xac);
NONFAILING(*(uint8_t*)0x20000039 = 0x14);
NONFAILING(*(uint8_t*)0x2000003a = 0);
NONFAILING(*(uint8_t*)0x2000003b = 0xbb);
NONFAILING(*(uint8_t*)0x2000003c = 0xac);
NONFAILING(*(uint8_t*)0x2000003d = 0x14);
NONFAILING(*(uint8_t*)0x2000003e = 0);
NONFAILING(*(uint8_t*)0x2000003f = 0xbb);
NONFAILING(*(uint8_t*)0x20000040 = 0xac);
NONFAILING(*(uint8_t*)0x20000041 = 0x14);
NONFAILING(*(uint8_t*)0x20000042 = 0);
NONFAILING(*(uint8_t*)0x20000043 = 0xaa);
NONFAILING(*(uint32_t*)0x20000044 = htobe32(-1));
NONFAILING(*(uint32_t*)0x20000048 = htobe32(-1));
NONFAILING(*(uint32_t*)0x2000004c = htobe32(0));
NONFAILING(*(uint32_t*)0x20000050 = htobe32(-1));
NONFAILING(*(uint8_t*)0x20000054 = 0x88);
NONFAILING(*(uint8_t*)0x20000055 = 0xc);
NONFAILING(memcpy((void*)0x20000056, "\xf6\xc9\xd8\x8d\x8d\x28\xf6\x03\xdf\x8e", 10));
NONFAILING(*(uint8_t*)0x20000060 = 0x82);
NONFAILING(*(uint8_t*)0x20000061 = 0x11);
NONFAILING(memcpy((void*)0x20000062, "\x44\x8b\xc1\x9f\x8c\x32\xca\xd3\xee\xd7\xba\xeb\x39\x39\x23", 15));
NONFAILING(*(uint8_t*)0x20000071 = 0x89);
NONFAILING(*(uint8_t*)0x20000072 = 0x1b);
NONFAILING(*(uint8_t*)0x20000073 = 7);
NONFAILING(*(uint32_t*)0x20000074 = htobe32(-1));
NONFAILING(*(uint32_t*)0x20000078 = htobe32(0));
NONFAILING(*(uint32_t*)0x2000007c = htobe32(0));
NONFAILING(*(uint32_t*)0x20000080 = htobe32(0xe0000002));
NONFAILING(*(uint32_t*)0x20000084 = htobe32(0x100));
NONFAILING(*(uint32_t*)0x20000088 = htobe32(0xe0000002));
NONFAILING(*(uint8_t*)0x2000008c = 0x83);
NONFAILING(*(uint8_t*)0x2000008d = 7);
NONFAILING(*(uint8_t*)0x2000008e = 7);
NONFAILING(*(uint32_t*)0x2000008f = htobe32(0xe0000001));
NONFAILING(*(uint8_t*)0x20000096 = 0xc);
NONFAILING(*(uint8_t*)0x20000097 = 2);
NONFAILING(*(uint16_t*)0x20000098 = htobe16(0));
NONFAILING(*(uint8_t*)0x2000009a = 0xf2);
NONFAILING(*(uint8_t*)0x2000009b = 0x1f);
NONFAILING(*(uint16_t*)0x2000009c = 0);
NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x2000009e, 0x10, 0, 4));
NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x2000009e, 4, 4, 4));
NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x2000009f, 2, 0, 2));
NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x2000009f, 0x1f, 2, 6));
NONFAILING(*(uint16_t*)0x200000a0 = htobe16(0xf63));
NONFAILING(*(uint16_t*)0x200000a2 = htobe16(0x65));
NONFAILING(*(uint16_t*)0x200000a4 = htobe16(0xdfc5));
NONFAILING(*(uint8_t*)0x200000a6 = 0x97);
NONFAILING(*(uint8_t*)0x200000a7 = 0xf0);
NONFAILING(*(uint16_t*)0x200000a8 = htobe16(0x20));
NONFAILING(*(uint32_t*)0x200000aa = htobe32(0));
NONFAILING(*(uint32_t*)0x200000ae = htobe32(-1));
NONFAILING(*(uint8_t*)0x200000b2 = 0);
NONFAILING(*(uint8_t*)0x200000b3 = 7);
NONFAILING(*(uint8_t*)0x200000b4 = 0x1b);
NONFAILING(*(uint8_t*)0x200000b5 = 8);
NONFAILING(*(uint32_t*)0x200000b6 = htobe32(-1));
NONFAILING(*(uint32_t*)0x200000ba = htobe32(-1));
NONFAILING(*(uint32_t*)0x200000be = htobe32(0xe0000002));
NONFAILING(*(uint32_t*)0x200000c2 = htobe32(0xe0000002));
NONFAILING(*(uint32_t*)0x200000c6 = htobe32(0xe0000001));
NONFAILING(*(uint32_t*)0x200000ca = htobe32(0x80));
NONFAILING(*(uint8_t*)0x200000ce = 0x89);
NONFAILING(*(uint8_t*)0x200000cf = 7);
NONFAILING(*(uint8_t*)0x200000d0 = 0xfc);
NONFAILING(*(uint32_t*)0x200000d1 = htobe32(0x7f000001));
NONFAILING(*(uint8_t*)0x200000d5 = 0x94);
NONFAILING(*(uint8_t*)0x200000d6 = 6);
NONFAILING(*(uint32_t*)0x200000d7 = htobe32(3));
NONFAILING(memcpy((void*)0x200000de, "\xa2\x33", 2));
struct csum_inet csum_1;
csum_inet_init(&csum_1);
NONFAILING(csum_inet_update(&csum_1, (const uint8_t*)0x20000096, 74));
NONFAILING(*(uint16_t*)0x20000098 = csum_inet_digest(&csum_1));
struct csum_inet csum_2;
csum_inet_init(&csum_2);
NONFAILING(csum_inet_update(&csum_2, (const uint8_t*)0x20000012, 132));
NONFAILING(*(uint16_t*)0x2000001c = csum_inet_digest(&csum_2));
break;
case 11:
NONFAILING(memcpy((void*)0x20000100, "\x45\xde\x03\x0f\xaa\xf3\xac\x44\xc1\x78\xe8\x28\xc4\x21\x21\x5d\x69\x65\x66\x46\x0f\x38\x17\x45\x00\xe6\x00\x8c\x6c\xef\x0e\x43\x0f\x01\xdb\xc4\x41\x8f\x2a\x53\x0a", 41));
NONFAILING(syz_execute_func(0x20000100));
break;
case 12:
break;
case 13:
NONFAILING(syz_open_pts());
break;
}
}
int main(void)
{
syscall(SYS_mmap, 0x20000000ul, 0x1000000ul, 3ul, 0x1012ul, -1, 0ul, 0ul);
install_segv_handler();
use_temporary_dir();
do_sandbox_none();
return 0;
}
<stdin>:359:4: error: misleading indentation; statement is not part of the previous 'if' [-Werror,-Wmisleading-indentation]
kill_and_wait(pid, &status);
^
<stdin>:357:3: note: previous statement is here
if (current_time_ms() - start < 5000)
^
1 error generated.
compiler invocation: c++ [-o /tmp/syz-executor603746253 -DGOOS_openbsd=1 -DGOARCH_amd64=1 -DHOSTGOOS_openbsd=1 -x c - -m64 -static -lutil -O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wframe-larger-than=16384]
--- FAIL: TestGenerate/openbsd/amd64/14 (8.34s)
csource_test.go:124: opts: {Threaded:true Collide:false Repeat:true RepeatTimes:0 Procs:0 Slowdown:1 Sandbox:none Fault:false FaultCall:0 FaultNth:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false USB:false VhciInjection:false Wifi:false Sysctl:false UseTmpDir:true HandleSegv:false Repro:false Trace:true}
program:
socketpair(0x18, 0x1, 0x9e, &(0x7f0000000000)={<r0=>0xffffffffffffffff, <r1=>0xffffffffffffffff})
bind(r1, &(0x7f0000000040)=@un=@abs={0x0, 0x0, 0x2}, 0x8)
getpeername$unix(r1, &(0x7f0000000080)=@abs, &(0x7f00000000c0)=0x8)
getpeername(r1, &(0x7f0000000100)=@in, &(0x7f0000000140)=0xc)
r2 = accept(r0, &(0x7f0000000180)=@in, &(0x7f00000001c0)=0xc)
readv(r2, &(0x7f0000001340)=[{&(0x7f0000000200)=""/121, 0x79}, {&(0x7f0000000280)=""/4096, 0x1000}, {&(0x7f0000001280)=""/180, 0xb4}], 0x3)
recvfrom(r0, &(0x7f0000001380)=""/145, 0x91, 0x801, &(0x7f0000001440)=@un=@abs={0x0, 0x0, 0x2}, 0x8)
ioctl$BIOCSETWF(0xffffffffffffff9c, 0x80104277, &(0x7f00000014c0)={0x1, &(0x7f0000001480)=[{0x6, 0x50, 0x6, 0x9}]})
r3 = openat(0xffffffffffffff9c, &(0x7f0000001500)='./file0\x00', 0x80, 0x55)
ioctl$VMM_IOC_TERM(r3, 0x80045604, &(0x7f0000001540)={0x5})
syz_emit_ethernet(0xe0, &(0x7f0000000000)={@broadcast, @local, [{[], {0x8100, 0x6, 0x0, 0x1}}], {@ipv4={0x800, {{0x21, 0x4, 0x0, 0x3d, 0xce, 0x66, 0x8, 0xb5, 0x16, 0x0, @broadcast, @empty, {[@ssrr={0x89, 0xb, 0xc2, [@local={0xac, 0x14, 0x0}, @local={0xac, 0x14, 0x0}]}, @ssrr={0x89, 0x23, 0x1, [@multicast1, @remote={0xac, 0x14, 0x0}, @remote={0xac, 0x14, 0x0}, @local={0xac, 0x14, 0x0}, @broadcast, @broadcast, @empty, @broadcast]}, @generic={0x88, 0xc, "f6c9d88d8d28f603df8e"}, @generic={0x82, 0x11, "448bc19f8c32cad3eed7baeb393923"}, @ssrr={0x89, 0x1b, 0x7, [@broadcast, @empty, @empty, @multicast2, @rand_addr=0x100, @multicast2]}, @lsrr={0x83, 0x7, 0x7, [@multicast1]}]}}, @icmp=@parameter_prob={0xc, 0x2, 0x0, 0xf2, 0x1f, 0x0, {0x10, 0x4, 0x2, 0x1f, 0xf63, 0x65, 0xdfc5, 0x97, 0xf0, 0x20, @empty, @broadcast, {[@end, @rr={0x7, 0x1b, 0x8, [@broadcast, @broadcast, @multicast2, @multicast2, @multicast1, @rand_addr=0x80]}, @ssrr={0x89, 0x7, 0xfc, [@loopback]}, @ra={0x94, 0x6, 0x3}]}}, "a233"}}}}})
syz_execute_func(&(0x7f0000000100)="45de030faaf3ac44c178e828c421215d696566460f38174500e6008c6cef0e430f01dbc4418f2a530a")
syz_extract_tcp_res(&(0x7f0000000140), 0x800, 0x1000)
syz_open_pts()
csource_test.go:125: failed to build program:
// autogenerated by syzkaller (https://github.com/google/syzkaller)
#define _GNU_SOURCE
#include <dirent.h>
#include <endian.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/resource.h>
#include <sys/stat.h>
#include <sys/syscall.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <termios.h>
#include <time.h>
#include <unistd.h>
#include <util.h>
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 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;
}
#define BITMASK(bf_off,bf_len) (((1ull << (bf_len)) - 1) << (bf_off))
#define STORE_BY_BITMASK(type,htobe,addr,val,bf_off,bf_len) *(type*)(addr) = htobe((htobe(*(type*)(addr)) & ~BITMASK((bf_off), (bf_len))) | (((type)(val) << (bf_off)) & BITMASK((bf_off), (bf_len))))
struct csum_inet {
uint32_t acc;
};
static void csum_inet_init(struct csum_inet* csum)
{
csum->acc = 0;
}
static void csum_inet_update(struct csum_inet* csum, const uint8_t* data, size_t length)
{
if (length == 0)
return;
size_t i = 0;
for (; i < length - 1; i += 2)
csum->acc += *(uint16_t*)&data[i];
if (length & 1)
csum->acc += le16toh((uint16_t)data[length - 1]);
while (csum->acc > 0xffff)
csum->acc = (csum->acc & 0xffff) + (csum->acc >> 16);
}
static uint16_t csum_inet_digest(struct csum_inet* csum)
{
return ~csum->acc;
}
#define __syscall syscall
static uintptr_t syz_open_pts(void)
{
int master, slave;
if (openpty(&master, &slave, NULL, NULL, NULL) == -1)
return -1;
if (dup2(master, master + 100) != -1)
close(master);
return slave;
}
static void sandbox_common()
{
struct rlimit rlim;
rlim.rlim_cur = rlim.rlim_max = 8 << 20;
setrlimit(RLIMIT_MEMLOCK, &rlim);
rlim.rlim_cur = rlim.rlim_max = 1 << 20;
setrlimit(RLIMIT_FSIZE, &rlim);
rlim.rlim_cur = rlim.rlim_max = 1 << 20;
setrlimit(RLIMIT_STACK, &rlim);
rlim.rlim_cur = rlim.rlim_max = 0;
setrlimit(RLIMIT_CORE, &rlim);
rlim.rlim_cur = rlim.rlim_max = 256;
setrlimit(RLIMIT_NOFILE, &rlim);
}
static void loop();
static int do_sandbox_none(void)
{
sandbox_common();
loop();
return 0;
}
static long syz_execute_func(volatile long text)
{
((void (*)(void))(text))();
return 0;
}
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)
{
fprintf(stderr, "### start\n");
int i, call, thread;
for (call = 0; call < 14; 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++) {
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[4] = {0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff};
void execute_call(int call)
{
intptr_t res = 0;
switch (call) {
case 0:
res = syscall(SYS_socketpair, 0x18ul, 1ul, 0x9e, 0x20000000ul);
fprintf(stderr, "### call=0 errno=%u\n", res == -1 ? errno : 0);
if (res != -1) {
r[0] = *(uint32_t*)0x20000000;
r[1] = *(uint32_t*)0x20000004;
}
break;
case 1:
*(uint16_t*)0x20000040 = 0;
*(uint8_t*)0x20000042 = 0;
*(uint32_t*)0x20000044 = 0x4e22;
res = syscall(SYS_bind, r[1], 0x20000040ul, 8ul);
fprintf(stderr, "### call=1 errno=%u\n", res == -1 ? errno : 0);
break;
case 2:
*(uint32_t*)0x200000c0 = 8;
res = syscall(SYS_getpeername, r[1], 0x20000080ul, 0x200000c0ul);
fprintf(stderr, "### call=2 errno=%u\n", res == -1 ? errno : 0);
break;
case 3:
*(uint32_t*)0x20000140 = 0xc;
res = syscall(SYS_getpeername, r[1], 0x20000100ul, 0x20000140ul);
fprintf(stderr, "### call=3 errno=%u\n", res == -1 ? errno : 0);
break;
case 4:
*(uint32_t*)0x200001c0 = 0xc;
res = syscall(SYS_accept, r[0], 0x20000180ul, 0x200001c0ul);
fprintf(stderr, "### call=4 errno=%u\n", res == -1 ? errno : 0);
if (res != -1)
r[2] = res;
break;
case 5:
*(uint64_t*)0x20001340 = 0x20000200;
*(uint64_t*)0x20001348 = 0x79;
*(uint64_t*)0x20001350 = 0x20000280;
*(uint64_t*)0x20001358 = 0x1000;
*(uint64_t*)0x20001360 = 0x20001280;
*(uint64_t*)0x20001368 = 0xb4;
res = syscall(SYS_readv, r[2], 0x20001340ul, 3ul);
fprintf(stderr, "### call=5 errno=%u\n", res == -1 ? errno : 0);
break;
case 6:
*(uint16_t*)0x20001440 = 0;
*(uint8_t*)0x20001442 = 0;
*(uint32_t*)0x20001444 = 0x4e22;
res = syscall(SYS_recvfrom, r[0], 0x20001380ul, 0x91ul, 0x801ul, 0x20001440ul, 8ul);
fprintf(stderr, "### call=6 errno=%u\n", res == -1 ? errno : 0);
break;
case 7:
*(uint32_t*)0x200014c0 = 1;
*(uint64_t*)0x200014c8 = 0x20001480;
*(uint16_t*)0x20001480 = 6;
*(uint8_t*)0x20001482 = 0x50;
*(uint8_t*)0x20001483 = 6;
*(uint32_t*)0x20001484 = 9;
res = syscall(SYS_ioctl, 0xffffff9c, 0x80104277ul, 0x200014c0ul);
fprintf(stderr, "### call=7 errno=%u\n", res == -1 ? errno : 0);
break;
case 8:
memcpy((void*)0x20001500, "./file0\000", 8);
res = syscall(SYS_openat, 0xffffff9c, 0x20001500ul, 0x80ul, 0x55ul);
fprintf(stderr, "### call=8 errno=%u\n", res == -1 ? errno : 0);
if (res != -1)
r[3] = res;
break;
case 9:
*(uint32_t*)0x20001540 = 5;
res = syscall(SYS_ioctl, r[3], 0x80045604ul, 0x20001540ul);
fprintf(stderr, "### call=9 errno=%u\n", res == -1 ? errno : 0);
break;
case 10:
*(uint8_t*)0x20000000 = -1;
*(uint8_t*)0x20000001 = -1;
*(uint8_t*)0x20000002 = -1;
*(uint8_t*)0x20000003 = -1;
*(uint8_t*)0x20000004 = -1;
*(uint8_t*)0x20000005 = -1;
*(uint8_t*)0x20000006 = 0xaa;
*(uint8_t*)0x20000007 = 0xaa;
*(uint8_t*)0x20000008 = 0xaa;
*(uint8_t*)0x20000009 = 0xaa;
*(uint8_t*)0x2000000a = 0xaa;
*(uint8_t*)0x2000000b = 0xaa;
*(uint16_t*)0x2000000c = htobe16(0x8100);
STORE_BY_BITMASK(uint16_t, , 0x2000000e, 6, 0, 3);
STORE_BY_BITMASK(uint16_t, , 0x2000000e, 0, 3, 1);
STORE_BY_BITMASK(uint16_t, , 0x2000000e, 1, 4, 12);
*(uint16_t*)0x20000010 = htobe16(0x800);
STORE_BY_BITMASK(uint8_t, , 0x20000012, 0x21, 0, 4);
STORE_BY_BITMASK(uint8_t, , 0x20000012, 4, 4, 4);
STORE_BY_BITMASK(uint8_t, , 0x20000013, 0, 0, 2);
STORE_BY_BITMASK(uint8_t, , 0x20000013, 0x3d, 2, 6);
*(uint16_t*)0x20000014 = htobe16(0xce);
*(uint16_t*)0x20000016 = htobe16(0x66);
*(uint16_t*)0x20000018 = htobe16(8);
*(uint8_t*)0x2000001a = 0xb5;
*(uint8_t*)0x2000001b = 0x16;
*(uint16_t*)0x2000001c = htobe16(0);
*(uint32_t*)0x2000001e = htobe32(-1);
*(uint32_t*)0x20000022 = htobe32(0);
*(uint8_t*)0x20000026 = 0x89;
*(uint8_t*)0x20000027 = 0xb;
*(uint8_t*)0x20000028 = 0xc2;
*(uint8_t*)0x20000029 = 0xac;
*(uint8_t*)0x2000002a = 0x14;
*(uint8_t*)0x2000002b = 0;
*(uint8_t*)0x2000002c = 0xaa;
*(uint8_t*)0x2000002d = 0xac;
*(uint8_t*)0x2000002e = 0x14;
*(uint8_t*)0x2000002f = 0;
*(uint8_t*)0x20000030 = 0xaa;
*(uint8_t*)0x20000031 = 0x89;
*(uint8_t*)0x20000032 = 0x23;
*(uint8_t*)0x20000033 = 1;
*(uint32_t*)0x20000034 = htobe32(0xe0000001);
*(uint8_t*)0x20000038 = 0xac;
*(uint8_t*)0x20000039 = 0x14;
*(uint8_t*)0x2000003a = 0;
*(uint8_t*)0x2000003b = 0xbb;
*(uint8_t*)0x2000003c = 0xac;
*(uint8_t*)0x2000003d = 0x14;
*(uint8_t*)0x2000003e = 0;
*(uint8_t*)0x2000003f = 0xbb;
*(uint8_t*)0x20000040 = 0xac;
*(uint8_t*)0x20000041 = 0x14;
*(uint8_t*)0x20000042 = 0;
*(uint8_t*)0x20000043 = 0xaa;
*(uint32_t*)0x20000044 = htobe32(-1);
*(uint32_t*)0x20000048 = htobe32(-1);
*(uint32_t*)0x2000004c = htobe32(0);
*(uint32_t*)0x20000050 = htobe32(-1);
*(uint8_t*)0x20000054 = 0x88;
*(uint8_t*)0x20000055 = 0xc;
memcpy((void*)0x20000056, "\xf6\xc9\xd8\x8d\x8d\x28\xf6\x03\xdf\x8e", 10);
*(uint8_t*)0x20000060 = 0x82;
*(uint8_t*)0x20000061 = 0x11;
memcpy((void*)0x20000062, "\x44\x8b\xc1\x9f\x8c\x32\xca\xd3\xee\xd7\xba\xeb\x39\x39\x23", 15);
*(uint8_t*)0x20000071 = 0x89;
*(uint8_t*)0x20000072 = 0x1b;
*(uint8_t*)0x20000073 = 7;
*(uint32_t*)0x20000074 = htobe32(-1);
*(uint32_t*)0x20000078 = htobe32(0);
*(uint32_t*)0x2000007c = htobe32(0);
*(uint32_t*)0x20000080 = htobe32(0xe0000002);
*(uint32_t*)0x20000084 = htobe32(0x100);
*(uint32_t*)0x20000088 = htobe32(0xe0000002);
*(uint8_t*)0x2000008c = 0x83;
*(uint8_t*)0x2000008d = 7;
*(uint8_t*)0x2000008e = 7;
*(uint32_t*)0x2000008f = htobe32(0xe0000001);
*(uint8_t*)0x20000096 = 0xc;
*(uint8_t*)0x20000097 = 2;
*(uint16_t*)0x20000098 = htobe16(0);
*(uint8_t*)0x2000009a = 0xf2;
*(uint8_t*)0x2000009b = 0x1f;
*(uint16_t*)0x2000009c = 0;
STORE_BY_BITMASK(uint8_t, , 0x2000009e, 0x10, 0, 4);
STORE_BY_BITMASK(uint8_t, , 0x2000009e, 4, 4, 4);
STORE_BY_BITMASK(uint8_t, , 0x2000009f, 2, 0, 2);
STORE_BY_BITMASK(uint8_t, , 0x2000009f, 0x1f, 2, 6);
*(uint16_t*)0x200000a0 = htobe16(0xf63);
*(uint16_t*)0x200000a2 = htobe16(0x65);
*(uint16_t*)0x200000a4 = htobe16(0xdfc5);
*(uint8_t*)0x200000a6 = 0x97;
*(uint8_t*)0x200000a7 = 0xf0;
*(uint16_t*)0x200000a8 = htobe16(0x20);
*(uint32_t*)0x200000aa = htobe32(0);
*(uint32_t*)0x200000ae = htobe32(-1);
*(uint8_t*)0x200000b2 = 0;
*(uint8_t*)0x200000b3 = 7;
*(uint8_t*)0x200000b4 = 0x1b;
*(uint8_t*)0x200000b5 = 8;
*(uint32_t*)0x200000b6 = htobe32(-1);
*(uint32_t*)0x200000ba = htobe32(-1);
*(uint32_t*)0x200000be = htobe32(0xe0000002);
*(uint32_t*)0x200000c2 = htobe32(0xe0000002);
*(uint32_t*)0x200000c6 = htobe32(0xe0000001);
*(uint32_t*)0x200000ca = htobe32(0x80);
*(uint8_t*)0x200000ce = 0x89;
*(uint8_t*)0x200000cf = 7;
*(uint8_t*)0x200000d0 = 0xfc;
*(uint32_t*)0x200000d1 = htobe32(0x7f000001);
*(uint8_t*)0x200000d5 = 0x94;
*(uint8_t*)0x200000d6 = 6;
*(uint32_t*)0x200000d7 = htobe32(3);
memcpy((void*)0x200000de, "\xa2\x33", 2);
struct csum_inet csum_1;
csum_inet_init(&csum_1);
csum_inet_update(&csum_1, (const uint8_t*)0x20000096, 74);
*(uint16_t*)0x20000098 = csum_inet_digest(&csum_1);
struct csum_inet csum_2;
csum_inet_init(&csum_2);
csum_inet_update(&csum_2, (const uint8_t*)0x20000012, 132);
*(uint16_t*)0x2000001c = csum_inet_digest(&csum_2);
(void)res;
break;
case 11:
memcpy((void*)0x20000100, "\x45\xde\x03\x0f\xaa\xf3\xac\x44\xc1\x78\xe8\x28\xc4\x21\x21\x5d\x69\x65\x66\x46\x0f\x38\x17\x45\x00\xe6\x00\x8c\x6c\xef\x0e\x43\x0f\x01\xdb\xc4\x41\x8f\x2a\x53\x0a", 41);
res = -1;
errno = EFAULT;
res = syz_execute_func(0x20000100);
fprintf(stderr, "### call=11 errno=%u\n", res == -1 ? errno : 0);
break;
case 12:
(void)res;
break;
case 13:
res = -1;
errno = EFAULT;
res = syz_open_pts();
fprintf(stderr, "### call=13 errno=%u\n", res == -1 ? errno : 0);
break;
}
}
int main(void)
{
syscall(SYS_mmap, 0x20000000ul, 0x1000000ul, 3ul, 0x1012ul, -1, 0ul, 0ul);
use_temporary_dir();
do_sandbox_none();
return 0;
}
<stdin>:331:4: error: misleading indentation; statement is not part of the previous 'if' [-Werror,-Wmisleading-indentation]
kill_and_wait(pid, &status);
^
<stdin>:329:3: note: previous statement is here
if (current_time_ms() - start < 5000)
^
1 error generated.
compiler invocation: c++ [-o /tmp/syz-executor803947345 -DGOOS_openbsd=1 -DGOARCH_amd64=1 -DHOSTGOOS_openbsd=1 -x c - -m64 -static -lutil -O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wframe-larger-than=16384]
--- FAIL: TestGenerate/openbsd/amd64/7 (4.61s)
csource_test.go:124: opts: {Threaded:true Collide:false Repeat:true RepeatTimes:0 Procs:0 Slowdown:10 Sandbox:none Fault:false FaultCall:0 FaultNth:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false USB:false VhciInjection:false Wifi:false Sysctl:false UseTmpDir:true HandleSegv:false Repro:false Trace:false}
program:
socketpair(0x18, 0x1, 0x9e, &(0x7f0000000000)={<r0=>0xffffffffffffffff, <r1=>0xffffffffffffffff})
bind(r1, &(0x7f0000000040)=@un=@abs={0x0, 0x0, 0x2}, 0x8)
getpeername$unix(r1, &(0x7f0000000080)=@abs, &(0x7f00000000c0)=0x8)
getpeername(r1, &(0x7f0000000100)=@in, &(0x7f0000000140)=0xc)
r2 = accept(r0, &(0x7f0000000180)=@in, &(0x7f00000001c0)=0xc)
readv(r2, &(0x7f0000001340)=[{&(0x7f0000000200)=""/121, 0x79}, {&(0x7f0000000280)=""/4096, 0x1000}, {&(0x7f0000001280)=""/180, 0xb4}], 0x3)
recvfrom(r0, &(0x7f0000001380)=""/145, 0x91, 0x801, &(0x7f0000001440)=@un=@abs={0x0, 0x0, 0x2}, 0x8)
ioctl$BIOCSETWF(0xffffffffffffff9c, 0x80104277, &(0x7f00000014c0)={0x1, &(0x7f0000001480)=[{0x6, 0x50, 0x6, 0x9}]})
r3 = openat(0xffffffffffffff9c, &(0x7f0000001500)='./file0\x00', 0x80, 0x55)
ioctl$VMM_IOC_TERM(r3, 0x80045604, &(0x7f0000001540)={0x5})
syz_emit_ethernet(0xe0, &(0x7f0000000000)={@broadcast, @local, [{[], {0x8100, 0x6, 0x0, 0x1}}], {@ipv4={0x800, {{0x21, 0x4, 0x0, 0x3d, 0xce, 0x66, 0x8, 0xb5, 0x16, 0x0, @broadcast, @empty, {[@ssrr={0x89, 0xb, 0xc2, [@local={0xac, 0x14, 0x0}, @local={0xac, 0x14, 0x0}]}, @ssrr={0x89, 0x23, 0x1, [@multicast1, @remote={0xac, 0x14, 0x0}, @remote={0xac, 0x14, 0x0}, @local={0xac, 0x14, 0x0}, @broadcast, @broadcast, @empty, @broadcast]}, @generic={0x88, 0xc, "f6c9d88d8d28f603df8e"}, @generic={0x82, 0x11, "448bc19f8c32cad3eed7baeb393923"}, @ssrr={0x89, 0x1b, 0x7, [@broadcast, @empty, @empty, @multicast2, @rand_addr=0x100, @multicast2]}, @lsrr={0x83, 0x7, 0x7, [@multicast1]}]}}, @icmp=@parameter_prob={0xc, 0x2, 0x0, 0xf2, 0x1f, 0x0, {0x10, 0x4, 0x2, 0x1f, 0xf63, 0x65, 0xdfc5, 0x97, 0xf0, 0x20, @empty, @broadcast, {[@end, @rr={0x7, 0x1b, 0x8, [@broadcast, @broadcast, @multicast2, @multicast2, @multicast1, @rand_addr=0x80]}, @ssrr={0x89, 0x7, 0xfc, [@loopback]}, @ra={0x94, 0x6, 0x3}]}}, "a233"}}}}})
syz_execute_func(&(0x7f0000000100)="45de030faaf3ac44c178e828c421215d696566460f38174500e6008c6cef0e430f01dbc4418f2a530a")
syz_extract_tcp_res(&(0x7f0000000140), 0x800, 0x1000)
syz_open_pts()
csource_test.go:125: failed to build program:
// autogenerated by syzkaller (https://github.com/google/syzkaller)
#define _GNU_SOURCE
#include <dirent.h>
#include <endian.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/resource.h>
#include <sys/stat.h>
#include <sys/syscall.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <termios.h>
#include <time.h>
#include <unistd.h>
#include <util.h>
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 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;
}
#define BITMASK(bf_off,bf_len) (((1ull << (bf_len)) - 1) << (bf_off))
#define STORE_BY_BITMASK(type,htobe,addr,val,bf_off,bf_len) *(type*)(addr) = htobe((htobe(*(type*)(addr)) & ~BITMASK((bf_off), (bf_len))) | (((type)(val) << (bf_off)) & BITMASK((bf_off), (bf_len))))
struct csum_inet {
uint32_t acc;
};
static void csum_inet_init(struct csum_inet* csum)
{
csum->acc = 0;
}
static void csum_inet_update(struct csum_inet* csum, const uint8_t* data, size_t length)
{
if (length == 0)
return;
size_t i = 0;
for (; i < length - 1; i += 2)
csum->acc += *(uint16_t*)&data[i];
if (length & 1)
csum->acc += le16toh((uint16_t)data[length - 1]);
while (csum->acc > 0xffff)
csum->acc = (csum->acc & 0xffff) + (csum->acc >> 16);
}
static uint16_t csum_inet_digest(struct csum_inet* csum)
{
return ~csum->acc;
}
#define __syscall syscall
static uintptr_t syz_open_pts(void)
{
int master, slave;
if (openpty(&master, &slave, NULL, NULL, NULL) == -1)
return -1;
if (dup2(master, master + 100) != -1)
close(master);
return slave;
}
static void sandbox_common()
{
struct rlimit rlim;
rlim.rlim_cur = rlim.rlim_max = 8 << 20;
setrlimit(RLIMIT_MEMLOCK, &rlim);
rlim.rlim_cur = rlim.rlim_max = 1 << 20;
setrlimit(RLIMIT_FSIZE, &rlim);
rlim.rlim_cur = rlim.rlim_max = 1 << 20;
setrlimit(RLIMIT_STACK, &rlim);
rlim.rlim_cur = rlim.rlim_max = 0;
setrlimit(RLIMIT_CORE, &rlim);
rlim.rlim_cur = rlim.rlim_max = 256;
setrlimit(RLIMIT_NOFILE, &rlim);
}
static void loop();
static int do_sandbox_none(void)
{
sandbox_common();
loop();
return 0;
}
static long syz_execute_func(volatile long text)
{
((void (*)(void))(text))();
return 0;
}
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 < 14; 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, 500);
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++) {
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 < 15000)
continue;
kill_and_wait(pid, &status);
break;
}
remove_dir(cwdbuf);
}
}
uint64_t r[4] = {0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff};
void execute_call(int call)
{
intptr_t res = 0;
switch (call) {
case 0:
res = syscall(SYS_socketpair, 0x18ul, 1ul, 0x9e, 0x20000000ul);
if (res != -1) {
r[0] = *(uint32_t*)0x20000000;
r[1] = *(uint32_t*)0x20000004;
}
break;
case 1:
*(uint16_t*)0x20000040 = 0;
*(uint8_t*)0x20000042 = 0;
*(uint32_t*)0x20000044 = 0x4e22;
syscall(SYS_bind, r[1], 0x20000040ul, 8ul);
break;
case 2:
*(uint32_t*)0x200000c0 = 8;
syscall(SYS_getpeername, r[1], 0x20000080ul, 0x200000c0ul);
break;
case 3:
*(uint32_t*)0x20000140 = 0xc;
syscall(SYS_getpeername, r[1], 0x20000100ul, 0x20000140ul);
break;
case 4:
*(uint32_t*)0x200001c0 = 0xc;
res = syscall(SYS_accept, r[0], 0x20000180ul, 0x200001c0ul);
if (res != -1)
r[2] = res;
break;
case 5:
*(uint64_t*)0x20001340 = 0x20000200;
*(uint64_t*)0x20001348 = 0x79;
*(uint64_t*)0x20001350 = 0x20000280;
*(uint64_t*)0x20001358 = 0x1000;
*(uint64_t*)0x20001360 = 0x20001280;
*(uint64_t*)0x20001368 = 0xb4;
syscall(SYS_readv, r[2], 0x20001340ul, 3ul);
break;
case 6:
*(uint16_t*)0x20001440 = 0;
*(uint8_t*)0x20001442 = 0;
*(uint32_t*)0x20001444 = 0x4e22;
syscall(SYS_recvfrom, r[0], 0x20001380ul, 0x91ul, 0x801ul, 0x20001440ul, 8ul);
break;
case 7:
*(uint32_t*)0x200014c0 = 1;
*(uint64_t*)0x200014c8 = 0x20001480;
*(uint16_t*)0x20001480 = 6;
*(uint8_t*)0x20001482 = 0x50;
*(uint8_t*)0x20001483 = 6;
*(uint32_t*)0x20001484 = 9;
syscall(SYS_ioctl, 0xffffff9c, 0x80104277ul, 0x200014c0ul);
break;
case 8:
memcpy((void*)0x20001500, "./file0\000", 8);
res = syscall(SYS_openat, 0xffffff9c, 0x20001500ul, 0x80ul, 0x55ul);
if (res != -1)
r[3] = res;
break;
case 9:
*(uint32_t*)0x20001540 = 5;
syscall(SYS_ioctl, r[3], 0x80045604ul, 0x20001540ul);
break;
case 10:
*(uint8_t*)0x20000000 = -1;
*(uint8_t*)0x20000001 = -1;
*(uint8_t*)0x20000002 = -1;
*(uint8_t*)0x20000003 = -1;
*(uint8_t*)0x20000004 = -1;
*(uint8_t*)0x20000005 = -1;
*(uint8_t*)0x20000006 = 0xaa;
*(uint8_t*)0x20000007 = 0xaa;
*(uint8_t*)0x20000008 = 0xaa;
*(uint8_t*)0x20000009 = 0xaa;
*(uint8_t*)0x2000000a = 0xaa;
*(uint8_t*)0x2000000b = 0xaa;
*(uint16_t*)0x2000000c = htobe16(0x8100);
STORE_BY_BITMASK(uint16_t, , 0x2000000e, 6, 0, 3);
STORE_BY_BITMASK(uint16_t, , 0x2000000e, 0, 3, 1);
STORE_BY_BITMASK(uint16_t, , 0x2000000e, 1, 4, 12);
*(uint16_t*)0x20000010 = htobe16(0x800);
STORE_BY_BITMASK(uint8_t, , 0x20000012, 0x21, 0, 4);
STORE_BY_BITMASK(uint8_t, , 0x20000012, 4, 4, 4);
STORE_BY_BITMASK(uint8_t, , 0x20000013, 0, 0, 2);
STORE_BY_BITMASK(uint8_t, , 0x20000013, 0x3d, 2, 6);
*(uint16_t*)0x20000014 = htobe16(0xce);
*(uint16_t*)0x20000016 = htobe16(0x66);
*(uint16_t*)0x20000018 = htobe16(8);
*(uint8_t*)0x2000001a = 0xb5;
*(uint8_t*)0x2000001b = 0x16;
*(uint16_t*)0x2000001c = htobe16(0);
*(uint32_t*)0x2000001e = htobe32(-1);
*(uint32_t*)0x20000022 = htobe32(0);
*(uint8_t*)0x20000026 = 0x89;
*(uint8_t*)0x20000027 = 0xb;
*(uint8_t*)0x20000028 = 0xc2;
*(uint8_t*)0x20000029 = 0xac;
*(uint8_t*)0x2000002a = 0x14;
*(uint8_t*)0x2000002b = 0;
*(uint8_t*)0x2000002c = 0xaa;
*(uint8_t*)0x2000002d = 0xac;
*(uint8_t*)0x2000002e = 0x14;
*(uint8_t*)0x2000002f = 0;
*(uint8_t*)0x20000030 = 0xaa;
*(uint8_t*)0x20000031 = 0x89;
*(uint8_t*)0x20000032 = 0x23;
*(uint8_t*)0x20000033 = 1;
*(uint32_t*)0x20000034 = htobe32(0xe0000001);
*(uint8_t*)0x20000038 = 0xac;
*(uint8_t*)0x20000039 = 0x14;
*(uint8_t*)0x2000003a = 0;
*(uint8_t*)0x2000003b = 0xbb;
*(uint8_t*)0x2000003c = 0xac;
*(uint8_t*)0x2000003d = 0x14;
*(uint8_t*)0x2000003e = 0;
*(uint8_t*)0x2000003f = 0xbb;
*(uint8_t*)0x20000040 = 0xac;
*(uint8_t*)0x20000041 = 0x14;
*(uint8_t*)0x20000042 = 0;
*(uint8_t*)0x20000043 = 0xaa;
*(uint32_t*)0x20000044 = htobe32(-1);
*(uint32_t*)0x20000048 = htobe32(-1);
*(uint32_t*)0x2000004c = htobe32(0);
*(uint32_t*)0x20000050 = htobe32(-1);
*(uint8_t*)0x20000054 = 0x88;
*(uint8_t*)0x20000055 = 0xc;
memcpy((void*)0x20000056, "\xf6\xc9\xd8\x8d\x8d\x28\xf6\x03\xdf\x8e", 10);
*(uint8_t*)0x20000060 = 0x82;
*(uint8_t*)0x20000061 = 0x11;
memcpy((void*)0x20000062, "\x44\x8b\xc1\x9f\x8c\x32\xca\xd3\xee\xd7\xba\xeb\x39\x39\x23", 15);
*(uint8_t*)0x20000071 = 0x89;
*(uint8_t*)0x20000072 = 0x1b;
*(uint8_t*)0x20000073 = 7;
*(uint32_t*)0x20000074 = htobe32(-1);
*(uint32_t*)0x20000078 = htobe32(0);
*(uint32_t*)0x2000007c = htobe32(0);
*(uint32_t*)0x20000080 = htobe32(0xe0000002);
*(uint32_t*)0x20000084 = htobe32(0x100);
*(uint32_t*)0x20000088 = htobe32(0xe0000002);
*(uint8_t*)0x2000008c = 0x83;
*(uint8_t*)0x2000008d = 7;
*(uint8_t*)0x2000008e = 7;
*(uint32_t*)0x2000008f = htobe32(0xe0000001);
*(uint8_t*)0x20000096 = 0xc;
*(uint8_t*)0x20000097 = 2;
*(uint16_t*)0x20000098 = htobe16(0);
*(uint8_t*)0x2000009a = 0xf2;
*(uint8_t*)0x2000009b = 0x1f;
*(uint16_t*)0x2000009c = 0;
STORE_BY_BITMASK(uint8_t, , 0x2000009e, 0x10, 0, 4);
STORE_BY_BITMASK(uint8_t, , 0x2000009e, 4, 4, 4);
STORE_BY_BITMASK(uint8_t, , 0x2000009f, 2, 0, 2);
STORE_BY_BITMASK(uint8_t, , 0x2000009f, 0x1f, 2, 6);
*(uint16_t*)0x200000a0 = htobe16(0xf63);
*(uint16_t*)0x200000a2 = htobe16(0x65);
*(uint16_t*)0x200000a4 = htobe16(0xdfc5);
*(uint8_t*)0x200000a6 = 0x97;
*(uint8_t*)0x200000a7 = 0xf0;
*(uint16_t*)0x200000a8 = htobe16(0x20);
*(uint32_t*)0x200000aa = htobe32(0);
*(uint32_t*)0x200000ae = htobe32(-1);
*(uint8_t*)0x200000b2 = 0;
*(uint8_t*)0x200000b3 = 7;
*(uint8_t*)0x200000b4 = 0x1b;
*(uint8_t*)0x200000b5 = 8;
*(uint32_t*)0x200000b6 = htobe32(-1);
*(uint32_t*)0x200000ba = htobe32(-1);
*(uint32_t*)0x200000be = htobe32(0xe0000002);
*(uint32_t*)0x200000c2 = htobe32(0xe0000002);
*(uint32_t*)0x200000c6 = htobe32(0xe0000001);
*(uint32_t*)0x200000ca = htobe32(0x80);
*(uint8_t*)0x200000ce = 0x89;
*(uint8_t*)0x200000cf = 7;
*(uint8_t*)0x200000d0 = 0xfc;
*(uint32_t*)0x200000d1 = htobe32(0x7f000001);
*(uint8_t*)0x200000d5 = 0x94;
*(uint8_t*)0x200000d6 = 6;
*(uint32_t*)0x200000d7 = htobe32(3);
memcpy((void*)0x200000de, "\xa2\x33", 2);
struct csum_inet csum_1;
csum_inet_init(&csum_1);
csum_inet_update(&csum_1, (const uint8_t*)0x20000096, 74);
*(uint16_t*)0x20000098 = csum_inet_digest(&csum_1);
struct csum_inet csum_2;
csum_inet_init(&csum_2);
csum_inet_update(&csum_2, (const uint8_t*)0x20000012, 132);
*(uint16_t*)0x2000001c = csum_inet_digest(&csum_2);
break;
case 11:
memcpy((void*)0x20000100, "\x45\xde\x03\x0f\xaa\xf3\xac\x44\xc1\x78\xe8\x28\xc4\x21\x21\x5d\x69\x65\x66\x46\x0f\x38\x17\x45\x00\xe6\x00\x8c\x6c\xef\x0e\x43\x0f\x01\xdb\xc4\x41\x8f\x2a\x53\x0a", 41);
syz_execute_func(0x20000100);
break;
case 12:
break;
case 13:
syz_open_pts();
break;
}
}
int main(void)
{
syscall(SYS_mmap, 0x20000000ul, 0x1000000ul, 3ul, 0x1012ul, -1, 0ul, 0ul);
use_temporary_dir();
do_sandbox_none();
return 0;
}
<stdin>:330:4: error: misleading indentation; statement is not part of the previous 'if' [-Werror,-Wmisleading-indentation]
kill_and_wait(pid, &status);
^
<stdin>:328:3: note: previous statement is here
if (current_time_ms() - start < 15000)
^
1 error generated.
compiler invocation: c++ [-o /tmp/syz-executor651986800 -DGOOS_openbsd=1 -DGOARCH_amd64=1 -DHOSTGOOS_openbsd=1 -x c - -m64 -static -lutil -O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wframe-larger-than=16384]
--- FAIL: TestGenerate/openbsd/amd64/4 (5.59s)
csource_test.go:122:
--- FAIL: TestGenerate/openbsd/amd64/5 (6.11s)
csource_test.go:122:
--- FAIL: TestGenerate/openbsd/amd64/2 (6.03s)
csource_test.go:122:
--- FAIL: TestGenerate/openbsd/amd64/6 (6.61s)
csource_test.go:122:
--- FAIL: TestGenerate/openbsd/amd64/1 (5.85s)
csource_test.go:122:
FAIL
FAIL github.com/google/syzkaller/pkg/csource 113.840s
ok github.com/google/syzkaller/pkg/db (cached)
? github.com/google/syzkaller/pkg/debugtracer [no test files]
ok github.com/google/syzkaller/pkg/email (cached)
? github.com/google/syzkaller/pkg/gce [no test files]
? github.com/google/syzkaller/pkg/gcs [no test files]
? github.com/google/syzkaller/pkg/hash [no test files]
ok github.com/google/syzkaller/pkg/host (cached)
? github.com/google/syzkaller/pkg/html [no test files]
ok github.com/google/syzkaller/pkg/ifuzz (cached)
? github.com/google/syzkaller/pkg/ifuzz/iset [no test files]
? github.com/google/syzkaller/pkg/ifuzz/powerpc [no test files]
? github.com/google/syzkaller/pkg/ifuzz/powerpc/generated [no test files]
? github.com/google/syzkaller/pkg/ifuzz/x86 [no test files]
? github.com/google/syzkaller/pkg/ifuzz/x86/gen [no test files]
? github.com/google/syzkaller/pkg/ifuzz/x86/generated [no test files]
ok github.com/google/syzkaller/pkg/instance 6.048s
ok github.com/google/syzkaller/pkg/ipc (cached)
? github.com/google/syzkaller/pkg/ipc/ipcconfig [no test files]
? github.com/google/syzkaller/pkg/kcidb [no test files]
ok github.com/google/syzkaller/pkg/kconfig 0.274s
ok github.com/google/syzkaller/pkg/kd (cached)
ok github.com/google/syzkaller/pkg/log (cached)
ok github.com/google/syzkaller/pkg/mgrconfig 1.933s
ok github.com/google/syzkaller/pkg/osutil (cached)
ok github.com/google/syzkaller/pkg/report 9.376s
ok github.com/google/syzkaller/pkg/repro 2.353s
? github.com/google/syzkaller/pkg/rpctype [no test files]
ok github.com/google/syzkaller/pkg/runtest (cached)
ok github.com/google/syzkaller/pkg/serializer (cached)
? github.com/google/syzkaller/pkg/signal [no test files]
ok github.com/google/syzkaller/pkg/symbolizer (cached)
ok github.com/google/syzkaller/pkg/tool (cached)
ok github.com/google/syzkaller/pkg/vcs (cached)
ok github.com/google/syzkaller/prog (cached)
ok github.com/google/syzkaller/prog/test (cached)
? github.com/google/syzkaller/sys [no test files]
? github.com/google/syzkaller/sys/akaros [no test files]
? github.com/google/syzkaller/sys/akaros/gen [no test files]
? github.com/google/syzkaller/sys/freebsd [no test files]
? github.com/google/syzkaller/sys/freebsd/gen [no test files]
? github.com/google/syzkaller/sys/fuchsia [no test files]
? github.com/google/syzkaller/sys/fuchsia/fidlgen [no test files]
? github.com/google/syzkaller/sys/fuchsia/gen [no test files]
? github.com/google/syzkaller/sys/fuchsia/layout [no test files]
ok github.com/google/syzkaller/sys/linux (cached)
? github.com/google/syzkaller/sys/linux/gen [no test files]
? github.com/google/syzkaller/sys/netbsd [no test files]
? github.com/google/syzkaller/sys/netbsd/gen [no test files]
ok github.com/google/syzkaller/sys/openbsd (cached)
? github.com/google/syzkaller/sys/openbsd/gen [no test files]
? github.com/google/syzkaller/sys/syz-extract [no test files]
? github.com/google/syzkaller/sys/syz-sysgen [no test files]
? github.com/google/syzkaller/sys/targets [no test files]
? github.com/google/syzkaller/sys/test [no test files]
? github.com/google/syzkaller/sys/test/gen [no test files]
? github.com/google/syzkaller/sys/trusty [no test files]
? github.com/google/syzkaller/sys/trusty/gen [no test files]
? github.com/google/syzkaller/sys/windows [no test files]
? github.com/google/syzkaller/sys/windows/gen [no test files]
ok github.com/google/syzkaller/syz-ci 4.738s
ok github.com/google/syzkaller/syz-fuzzer (cached)
ok github.com/google/syzkaller/syz-hub (cached)
ok github.com/google/syzkaller/syz-hub/state (cached)
ok github.com/google/syzkaller/syz-manager 17.836s
? github.com/google/syzkaller/tools/syz-benchcmp [no test files]
? github.com/google/syzkaller/tools/syz-bisect [no test files]
? github.com/google/syzkaller/tools/syz-check [no test files]
? github.com/google/syzkaller/tools/syz-cover [no test files]
? github.com/google/syzkaller/tools/syz-crush [no test files]
? github.com/google/syzkaller/tools/syz-db [no test files]
? github.com/google/syzkaller/tools/syz-execprog [no test files]
? github.com/google/syzkaller/tools/syz-expand [no test files]
? github.com/google/syzkaller/tools/syz-fmt [no test files]
? github.com/google/syzkaller/tools/syz-hubtool [no test files]
? github.com/google/syzkaller/tools/syz-kcidb [no test files]
? github.com/google/syzkaller/tools/syz-kconf [no test files]
ok github.com/google/syzkaller/tools/syz-linter (cached)
? github.com/google/syzkaller/tools/syz-make [no test files]
? github.com/google/syzkaller/tools/syz-minconfig [no test files]
? github.com/google/syzkaller/tools/syz-mutate [no test files]
? github.com/google/syzkaller/tools/syz-prog2c [no test files]
? github.com/google/syzkaller/tools/syz-reporter [no test files]
? github.com/google/syzkaller/tools/syz-repro [no test files]
? github.com/google/syzkaller/tools/syz-reprolist [no test files]
? github.com/google/syzkaller/tools/syz-runtest [no test files]
? github.com/google/syzkaller/tools/syz-showprio [no test files]
? github.com/google/syzkaller/tools/syz-stress [no test files]
? github.com/google/syzkaller/tools/syz-symbolize [no test files]
? github.com/google/syzkaller/tools/syz-testbuild [no test files]
? github.com/google/syzkaller/tools/syz-trace2syz [no test files]
ok github.com/google/syzkaller/tools/syz-trace2syz/parser (cached)
ok github.com/google/syzkaller/tools/syz-trace2syz/proggen (cached)
? github.com/google/syzkaller/tools/syz-tty [no test files]
? github.com/google/syzkaller/tools/syz-upgrade [no test files]
? github.com/google/syzkaller/tools/syz-usbgen [no test files]
ok github.com/google/syzkaller/vm 10.932s
? github.com/google/syzkaller/vm/adb [no test files]
? github.com/google/syzkaller/vm/bhyve [no test files]
? github.com/google/syzkaller/vm/gce [no test files]
? github.com/google/syzkaller/vm/gvisor [no test files]
ok github.com/google/syzkaller/vm/isolated 0.929s
? github.com/google/syzkaller/vm/kvm [no test files]
? github.com/google/syzkaller/vm/odroid [no test files]
? github.com/google/syzkaller/vm/qemu [no test files]
ok github.com/google/syzkaller/vm/vmimpl 1.097s
? github.com/google/syzkaller/vm/vmm [no test files]
? github.com/google/syzkaller/vm/vmware [no test files]
FAIL