? github.com/google/syzkaller/dashboard/dashapi [no test files] ok github.com/google/syzkaller/dashboard/app (cached) ? github.com/google/syzkaller/pkg/debugtracer [no test files] ? github.com/google/syzkaller/pkg/gcs [no test files] ? github.com/google/syzkaller/pkg/hash [no test files] ? github.com/google/syzkaller/pkg/html/pages [no test files] ? 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/executor 16.151s ok github.com/google/syzkaller/pkg/asset (cached) ok github.com/google/syzkaller/pkg/ast 1.336s ok github.com/google/syzkaller/pkg/auth (cached) ok github.com/google/syzkaller/pkg/bisect (cached) ok github.com/google/syzkaller/pkg/bisect/minimize (cached) ok github.com/google/syzkaller/pkg/build (cached) ok github.com/google/syzkaller/pkg/compiler 13.125s ok github.com/google/syzkaller/pkg/config (cached) ok github.com/google/syzkaller/pkg/corpus (cached) ok github.com/google/syzkaller/pkg/cover (cached) ok github.com/google/syzkaller/pkg/cover/backend (cached) ? github.com/google/syzkaller/pkg/ipc/ipcconfig [no test files] ? github.com/google/syzkaller/pkg/kcidb [no test files] ? github.com/google/syzkaller/pkg/report/crash [no test files] ? github.com/google/syzkaller/pkg/rpctype [no test files] ? github.com/google/syzkaller/pkg/testutil [no test files] ? github.com/google/syzkaller/pkg/stats/syzbotstats [no test files] ? github.com/google/syzkaller/pkg/tools [no test files] ? github.com/google/syzkaller/sys [no test files] ? github.com/google/syzkaller/sys/akaros/gen [no test files] ? github.com/google/syzkaller/sys/akaros [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/darwin [no test files] ? github.com/google/syzkaller/sys/darwin/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/layout [no test files] ? github.com/google/syzkaller/sys/fuchsia/gen [no test files] ? github.com/google/syzkaller/sys/linux/gen [no test files] ? github.com/google/syzkaller/sys/netbsd/gen [no test files] ? 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] --- FAIL: TestGenerate (17.57s) --- FAIL: TestGenerate/test/64 (0.02s) testutil.go:33: seed=1712295837930392828 testutil.go:33: seed=1712295837944814053 --- FAIL: TestGenerate/test/64/7 (0.99s) csource_test.go:150: opts: {Threaded:true Repeat:true RepeatTimes:0 Procs:0 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Repro:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}} program: test$length32(&(0x7f0000000040)={[0x0, 0x100, 0xffffffff, 0x1, 0xffffff00, 0x5, 0x7fffffff, 0x3], {0x8}, &(0x7f0000000000)={0x8}}) (fail_nth: 1) csource7(0x2) (async) test$length6(&(0x7f0000000080)={[0x1f, 0x1, 0x2], 0x4}) (rerun: 4) test$length6(&(0x7f00000000c0)={[0xfff9, 0x101, 0x7ff, 0x3], 0x4}) test$recur0(&(0x7f0000000140)={&(0x7f0000000100)}) mutate2() test$recur0(&(0x7f0000000180)) foo$anyres(&(0x7f00000001c0), &(0x7f0000000200)=0x0, &(0x7f0000000240)) foo$anyres(&(0x7f0000000280)=0x0, &(0x7f00000002c0), &(0x7f0000000300)) foo$any0(&(0x7f0000000340)={0x5, 0x9, 0x0, 0x0, {0x1, 0x7, 0x1, 0x0, 0x0, 0x1}, [{@res32=r0, @i32=0x7ff, "732f4f620038617540685d8590b1e5e5188fa6e5c2510e8fcc247bcbf4d5f42608e85a40ec2e1509b7cfdca45bd88bc9308d05660c215debf7bfd0a28faaf9b1455f0556e2166d"}, {@res8=r1, @i8=0x4, "368e9fdf462195a0b2f6f38f1aa787b5640156280b4601e25d9117bd497db27b1f3bb7bc75e18d7fe799e7aaa6260c65769655d01a7928bb775076957c885223088d854d2a29ed9b6dc995b24e0f1fc8d75f4c5ad77b29c471e69c50b0142e8b58a45e1f03f21b9acf209c"}]}) syz_compare(&(0x7f0000000000)='[\x00', 0x2, &(0x7f0000000040)=@align0={0x0, 0xfffffffb, 0x1, 0x4, 0xa35}, 0x18) syz_compare_int$2(0x2, 0x6, 0x3) syz_errno(0x2a4c2702) syz_execute_func(&(0x7f0000000080)="d0f0e20f289a08c0cea186414e808732022dbdfdfd97b863591cb800c4e8312a90346c5c6d70467615c789e2cc7863fab5a7") syz_exit(0x1e8) syz_mmap(&(0x7f0000fff000/0x1000)=nil, 0x1000) syz_sleep_ms(0x8) syz_test_fuzzer1(0x5, 0x1, 0x7) csource_test.go:151: failed to build program: // autogenerated by syzkaller (https://github.com/google/syzkaller) #define _GNU_SOURCE #include #include #include #include #include #include #include #include #include #include #include #include #ifndef SYS_csource7 #define SYS_csource7 0 #endif #ifndef SYS_foo #define SYS_foo 0 #endif #ifndef SYS_mutate2 #define SYS_mutate2 0 #endif #ifndef SYS_test #define SYS_test 0 #endif 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 int inject_fault(int nth) { return 0; } static void setup_fault() { } 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)))) static long syz_mmap(volatile long a0, volatile long a1) { return (long)mmap((void*)a0, a1, PROT_READ | PROT_WRITE, MAP_ANON | MAP_PRIVATE | MAP_FIXED, -1, 0); } static long syz_errno(volatile long v) { errno = v; return v == 0 ? 0 : -1; } static long syz_exit(volatile long status) { _exit(status); return 0; } static long syz_sleep_ms(volatile long ms) { sleep_ms(ms); return 0; } static long syz_compare(volatile long want, volatile long want_len, volatile long got, volatile long got_len) { if (want_len != got_len) { errno = EBADF; goto error; } if (memcmp((void*)want, (void*)got, want_len)) { errno = EINVAL; goto error; } return 0; error: return -1; } static long syz_compare_int(volatile long n, ...) { va_list args; va_start(args, n); long v0 = va_arg(args, long); long v1 = va_arg(args, long); long v2 = va_arg(args, long); long v3 = va_arg(args, long); va_end(args); if (n < 2 || n > 4) return errno = E2BIG, -1; if (n <= 2 && v2 != 0) return errno = EFAULT, -1; if (n <= 3 && v3 != 0) return errno = EFAULT, -1; if (v0 != v1) return errno = EINVAL, -1; if (n > 2 && v0 != v2) return errno = EINVAL, -1; if (n > 3 && v0 != v3) return errno = EINVAL, -1; return 0; } static void fake_crash(const char* name) { exit(1); exit(1); } static long syz_test_fuzzer1(volatile long a, volatile long b, volatile long c) { if (a == 1 && b == 1 && c == 1) fake_crash("first bug"); if (a == 1 && b == 2 && c == 3) fake_crash("second bug"); 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 < 18; call++) { for (thread = 0; thread < (int)(sizeof(threads) / sizeof(threads[0])); thread++) { struct thread_t* th = &threads[thread]; if (!th->created) { th->created = 1; event_init(&th->ready); event_init(&th->done); event_set(&th->done); thread_start(thr, th); } if (!event_isset(&th->done)) continue; event_reset(&th->done); th->call = call; __atomic_fetch_add(&running, 1, __ATOMIC_RELAXED); event_set(&th->ready); if (call == 1) break; event_timedwait(&th->done, 50); break; } } for (i = 0; i < 100 && __atomic_load_n(&running, __ATOMIC_RELAXED); i++) sleep_ms(1); } static void execute_one(void); static void loop(void) { execute_one(); } uint64_t r[2] = {0x0, 0x0}; void execute_call(int call) { intptr_t res = 0; switch (call) { case 0: *(uint32_t*)0x20000040 = 0; *(uint32_t*)0x20000044 = 0x100; *(uint32_t*)0x20000048 = -1; *(uint32_t*)0x2000004c = 1; *(uint32_t*)0x20000050 = 0xffffff00; *(uint32_t*)0x20000054 = 5; *(uint32_t*)0x20000058 = 0x7fffffff; *(uint32_t*)0x2000005c = 3; *(uint32_t*)0x20000060 = 8; *(uint64_t*)0x20000068 = 0x20000000; *(uint32_t*)0x20000000 = 8; inject_fault(1); syscall(SYS_test, /*a0=*/0x20000040ul, 0, 0, 0, 0, 0); break; case 1: syscall(SYS_csource7, /*flag=BIT_1*/2ul); break; case 2: *(uint16_t*)0x20000080 = 0x1f; *(uint16_t*)0x20000082 = 1; *(uint16_t*)0x20000084 = 2; *(uint16_t*)0x20000086 = 0; *(uint16_t*)0x20000088 = 4; syscall(SYS_test, /*a0=*/0x20000080ul, 0, 0, 0, 0, 0); { int i; for(i = 0; i < 4; i++) { syscall(SYS_test, /*a0=*/0x20000080ul, 0, 0, 0, 0, 0); } } break; case 3: *(uint16_t*)0x200000c0 = 0xfff9; *(uint16_t*)0x200000c2 = 0x101; *(uint16_t*)0x200000c4 = 0x7ff; *(uint16_t*)0x200000c6 = 3; *(uint16_t*)0x200000c8 = 4; syscall(SYS_test, /*a0=*/0x200000c0ul, 0, 0, 0, 0, 0); break; case 4: *(uint64_t*)0x20000140 = 0x20000100; *(uint64_t*)0x20000100 = 0; syscall(SYS_test, /*a0=*/0x20000140ul, 0, 0, 0, 0, 0); break; case 5: syscall(SYS_mutate2); break; case 6: *(uint64_t*)0x20000180 = 0; syscall(SYS_test, /*a0=*/0x20000180ul, 0, 0, 0, 0, 0); break; case 7: res = syscall(SYS_foo, /*a0=*/0x200001c0ul, /*a1=*/0x20000200ul, /*a2=*/0x20000240ul); if (res != -1) r[0] = *(uint32_t*)0x20000200; break; case 8: res = syscall(SYS_foo, /*a0=*/0x20000280ul, /*a1=*/0x200002c0ul, /*a2=*/0x20000300ul); if (res != -1) r[1] = *(uint8_t*)0x20000280; break; case 9: *(uint8_t*)0x20000340 = 5; *(uint32_t*)0x20000344 = 9; *(uint16_t*)0x20000348 = htobe16(0); *(uint64_t*)0x20000350 = 0; STORE_BY_BITMASK(uint8_t, , 0x20000358, 1, 0, 2); STORE_BY_BITMASK(uint8_t, , 0x20000358, 7, 2, 3); STORE_BY_BITMASK(uint8_t, , 0x20000358, 1, 5, 1); STORE_BY_BITMASK(uint16_t, , 0x20000358, 0, 6, 1); STORE_BY_BITMASK(uint16_t, , 0x2000035a, 0, 0, 10); STORE_BY_BITMASK(uint16_t, , 0x2000035a, 1, 10, 3); *(uint32_t*)0x2000035c = r[0]; *(uint32_t*)0x20000364 = 0x7ff; memcpy((void*)0x20000368, "\x73\x2f\x4f\x62\x00\x38\x61\x75\x40\x68\x5d\x85\x90\xb1\xe5\xe5\x18\x8f\xa6\xe5\xc2\x51\x0e\x8f\xcc\x24\x7b\xcb\xf4\xd5\xf4\x26\x08\xe8\x5a\x40\xec\x2e\x15\x09\xb7\xcf\xdc\xa4\x5b\xd8\x8b\xc9\x30\x8d\x05\x66\x0c\x21\x5d\xeb\xf7\xbf\xd0\xa2\x8f\xaa\xf9\xb1\x45\x5f\x05\x56\xe2\x16\x6d", 71); *(uint8_t*)0x200003b0 = r[1]; *(uint8_t*)0x200003b8 = 4; memcpy((void*)0x200003b9, "\x36\x8e\x9f\xdf\x46\x21\x95\xa0\xb2\xf6\xf3\x8f\x1a\xa7\x87\xb5\x64\x01\x56\x28\x0b\x46\x01\xe2\x5d\x91\x17\xbd\x49\x7d\xb2\x7b\x1f\x3b\xb7\xbc\x75\xe1\x8d\x7f\xe7\x99\xe7\xaa\xa6\x26\x0c\x65\x76\x96\x55\xd0\x1a\x79\x28\xbb\x77\x50\x76\x95\x7c\x88\x52\x23\x08\x8d\x85\x4d\x2a\x29\xed\x9b\x6d\xc9\x95\xb2\x4e\x0f\x1f\xc8\xd7\x5f\x4c\x5a\xd7\x7b\x29\xc4\x71\xe6\x9c\x50\xb0\x14\x2e\x8b\x58\xa4\x5e\x1f\x03\xf2\x1b\x9a\xcf\x20\x9c", 107); syscall(SYS_foo, /*a=*/0x20000340ul, 0, 0); break; case 10: memcpy((void*)0x20000000, "[\000", 2); *(uint16_t*)0x20000040 = 0; *(uint32_t*)0x20000044 = 0xfffffffb; *(uint8_t*)0x20000048 = 1; *(uint16_t*)0x2000004a = 4; *(uint64_t*)0x20000050 = 0xa35; syz_compare(/*want=*/0x20000000, /*want_len=*/2, /*got=*/0x20000040, /*got_len=*/0x18); break; case 11: syz_compare_int(/*n=*/2, /*v0=*/6, /*v1=*/3, 0, 0); break; case 12: syz_errno(/*v=*/0x2a4c2702); break; case 13: memcpy((void*)0x20000080, "\xd0\xf0\xe2\x0f\x28\x9a\x08\xc0\xce\xa1\x86\x41\x4e\x80\x87\x32\x02\x2d\xbd\xfd\xfd\x97\xb8\x63\x59\x1c\xb8\x00\xc4\xe8\x31\x2a\x90\x34\x6c\x5c\x6d\x70\x46\x76\x15\xc7\x89\xe2\xcc\x78\x63\xfa\xb5\xa7", 50); syz_execute_func(/*text=*/0x20000080); break; case 14: syz_exit(/*status=*/0x1e8); break; case 15: syz_mmap(/*addr=*/0x20fff000, /*len=*/0x1000); break; case 16: syz_sleep_ms(/*ms=*/8); break; case 17: syz_test_fuzzer1(/*a=*/5, /*b=*/1, /*c=*/7); break; } } int main(void) { syz_mmap(/*addr=*/0x20000000, /*len=*/0x1000000); setup_fault(); use_temporary_dir(); loop(); return 0; } :317:3: error: call to undeclared function 'syscall'; ISO C99 and later do not support implicit function declarations [-Werror,-Wimplicit-function-declaration] syscall(SYS_test, /*a0=*/0x20000040ul, 0, 0, 0, 0, 0); ^ 1 error generated. compiler invocation: c++ [-o /tmp/syz-executor1454377847 -DGOOS_test=1 -DGOARCH_64=1 -DHOSTGOOS_openbsd=1 -x c - -m64 -lutil -O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wframe-larger-than=16384 -Wno-array-bounds -Wno-unused-but-set-variable -Wno-unused-command-line-argument -no-pie -fno-exceptions] --- FAIL: TestGenerate/test/64/6 (1.04s) csource_test.go:150: opts: {Threaded:true Repeat:true RepeatTimes:0 Procs:0 Slowdown:10 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Repro:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}} program: test$length32(&(0x7f0000000040)={[0x0, 0x100, 0xffffffff, 0x1, 0xffffff00, 0x5, 0x7fffffff, 0x3], {0x8}, &(0x7f0000000000)={0x8}}) (fail_nth: 1) csource7(0x2) (async) test$length6(&(0x7f0000000080)={[0x1f, 0x1, 0x2], 0x4}) (rerun: 4) test$length6(&(0x7f00000000c0)={[0xfff9, 0x101, 0x7ff, 0x3], 0x4}) test$recur0(&(0x7f0000000140)={&(0x7f0000000100)}) mutate2() test$recur0(&(0x7f0000000180)) foo$anyres(&(0x7f00000001c0), &(0x7f0000000200)=0x0, &(0x7f0000000240)) foo$anyres(&(0x7f0000000280)=0x0, &(0x7f00000002c0), &(0x7f0000000300)) foo$any0(&(0x7f0000000340)={0x5, 0x9, 0x0, 0x0, {0x1, 0x7, 0x1, 0x0, 0x0, 0x1}, [{@res32=r0, @i32=0x7ff, "732f4f620038617540685d8590b1e5e5188fa6e5c2510e8fcc247bcbf4d5f42608e85a40ec2e1509b7cfdca45bd88bc9308d05660c215debf7bfd0a28faaf9b1455f0556e2166d"}, {@res8=r1, @i8=0x4, "368e9fdf462195a0b2f6f38f1aa787b5640156280b4601e25d9117bd497db27b1f3bb7bc75e18d7fe799e7aaa6260c65769655d01a7928bb775076957c885223088d854d2a29ed9b6dc995b24e0f1fc8d75f4c5ad77b29c471e69c50b0142e8b58a45e1f03f21b9acf209c"}]}) syz_compare(&(0x7f0000000000)='[\x00', 0x2, &(0x7f0000000040)=@align0={0x0, 0xfffffffb, 0x1, 0x4, 0xa35}, 0x18) syz_compare_int$2(0x2, 0x6, 0x3) syz_errno(0x2a4c2702) syz_execute_func(&(0x7f0000000080)="d0f0e20f289a08c0cea186414e808732022dbdfdfd97b863591cb800c4e8312a90346c5c6d70467615c789e2cc7863fab5a7") syz_exit(0x1e8) syz_mmap(&(0x7f0000fff000/0x1000)=nil, 0x1000) syz_sleep_ms(0x8) syz_test_fuzzer1(0x5, 0x1, 0x7) csource_test.go:151: failed to build program: // autogenerated by syzkaller (https://github.com/google/syzkaller) #define _GNU_SOURCE #include #include #include #include #include #include #include #include #include #include #include #include #ifndef SYS_csource7 #define SYS_csource7 0 #endif #ifndef SYS_foo #define SYS_foo 0 #endif #ifndef SYS_mutate2 #define SYS_mutate2 0 #endif #ifndef SYS_test #define SYS_test 0 #endif 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 int inject_fault(int nth) { return 0; } static void setup_fault() { } 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)))) static long syz_mmap(volatile long a0, volatile long a1) { return (long)mmap((void*)a0, a1, PROT_READ | PROT_WRITE, MAP_ANON | MAP_PRIVATE | MAP_FIXED, -1, 0); } static long syz_errno(volatile long v) { errno = v; return v == 0 ? 0 : -1; } static long syz_exit(volatile long status) { _exit(status); return 0; } static long syz_sleep_ms(volatile long ms) { sleep_ms(ms); return 0; } static long syz_compare(volatile long want, volatile long want_len, volatile long got, volatile long got_len) { if (want_len != got_len) { errno = EBADF; goto error; } if (memcmp((void*)want, (void*)got, want_len)) { errno = EINVAL; goto error; } return 0; error: return -1; } static long syz_compare_int(volatile long n, ...) { va_list args; va_start(args, n); long v0 = va_arg(args, long); long v1 = va_arg(args, long); long v2 = va_arg(args, long); long v3 = va_arg(args, long); va_end(args); if (n < 2 || n > 4) return errno = E2BIG, -1; if (n <= 2 && v2 != 0) return errno = EFAULT, -1; if (n <= 3 && v3 != 0) return errno = EFAULT, -1; if (v0 != v1) return errno = EINVAL, -1; if (n > 2 && v0 != v2) return errno = EINVAL, -1; if (n > 3 && v0 != v3) return errno = EINVAL, -1; return 0; } static void loop(); static int do_sandbox_none(void) { loop(); return 0; } static void fake_crash(const char* name) { exit(1); exit(1); } static long syz_test_fuzzer1(volatile long a, volatile long b, volatile long c) { if (a == 1 && b == 1 && c == 1) fake_crash("first bug"); if (a == 1 && b == 2 && c == 3) fake_crash("second bug"); 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 < 18; call++) { for (thread = 0; thread < (int)(sizeof(threads) / sizeof(threads[0])); thread++) { struct thread_t* th = &threads[thread]; if (!th->created) { th->created = 1; event_init(&th->ready); event_init(&th->done); event_set(&th->done); thread_start(thr, th); } if (!event_isset(&th->done)) continue; event_reset(&th->done); th->call = call; __atomic_fetch_add(&running, 1, __ATOMIC_RELAXED); event_set(&th->ready); if (call == 1) break; event_timedwait(&th->done, 500); break; } } for (i = 0; i < 100 && __atomic_load_n(&running, __ATOMIC_RELAXED); i++) sleep_ms(1); } static void execute_one(void); static void loop(void) { execute_one(); } uint64_t r[2] = {0x0, 0x0}; void execute_call(int call) { intptr_t res = 0; switch (call) { case 0: *(uint32_t*)0x20000040 = 0; *(uint32_t*)0x20000044 = 0x100; *(uint32_t*)0x20000048 = -1; *(uint32_t*)0x2000004c = 1; *(uint32_t*)0x20000050 = 0xffffff00; *(uint32_t*)0x20000054 = 5; *(uint32_t*)0x20000058 = 0x7fffffff; *(uint32_t*)0x2000005c = 3; *(uint32_t*)0x20000060 = 8; *(uint64_t*)0x20000068 = 0x20000000; *(uint32_t*)0x20000000 = 8; inject_fault(1); syscall(SYS_test, /*a0=*/0x20000040ul, 0, 0, 0, 0, 0); break; case 1: syscall(SYS_csource7, /*flag=BIT_1*/2ul); break; case 2: *(uint16_t*)0x20000080 = 0x1f; *(uint16_t*)0x20000082 = 1; *(uint16_t*)0x20000084 = 2; *(uint16_t*)0x20000086 = 0; *(uint16_t*)0x20000088 = 4; syscall(SYS_test, /*a0=*/0x20000080ul, 0, 0, 0, 0, 0); { int i; for(i = 0; i < 4; i++) { syscall(SYS_test, /*a0=*/0x20000080ul, 0, 0, 0, 0, 0); } } break; case 3: *(uint16_t*)0x200000c0 = 0xfff9; *(uint16_t*)0x200000c2 = 0x101; *(uint16_t*)0x200000c4 = 0x7ff; *(uint16_t*)0x200000c6 = 3; *(uint16_t*)0x200000c8 = 4; syscall(SYS_test, /*a0=*/0x200000c0ul, 0, 0, 0, 0, 0); break; case 4: *(uint64_t*)0x20000140 = 0x20000100; *(uint64_t*)0x20000100 = 0; syscall(SYS_test, /*a0=*/0x20000140ul, 0, 0, 0, 0, 0); break; case 5: syscall(SYS_mutate2); break; case 6: *(uint64_t*)0x20000180 = 0; syscall(SYS_test, /*a0=*/0x20000180ul, 0, 0, 0, 0, 0); break; case 7: res = syscall(SYS_foo, /*a0=*/0x200001c0ul, /*a1=*/0x20000200ul, /*a2=*/0x20000240ul); if (res != -1) r[0] = *(uint32_t*)0x20000200; break; case 8: res = syscall(SYS_foo, /*a0=*/0x20000280ul, /*a1=*/0x200002c0ul, /*a2=*/0x20000300ul); if (res != -1) r[1] = *(uint8_t*)0x20000280; break; case 9: *(uint8_t*)0x20000340 = 5; *(uint32_t*)0x20000344 = 9; *(uint16_t*)0x20000348 = htobe16(0); *(uint64_t*)0x20000350 = 0; STORE_BY_BITMASK(uint8_t, , 0x20000358, 1, 0, 2); STORE_BY_BITMASK(uint8_t, , 0x20000358, 7, 2, 3); STORE_BY_BITMASK(uint8_t, , 0x20000358, 1, 5, 1); STORE_BY_BITMASK(uint16_t, , 0x20000358, 0, 6, 1); STORE_BY_BITMASK(uint16_t, , 0x2000035a, 0, 0, 10); STORE_BY_BITMASK(uint16_t, , 0x2000035a, 1, 10, 3); *(uint32_t*)0x2000035c = r[0]; *(uint32_t*)0x20000364 = 0x7ff; memcpy((void*)0x20000368, "\x73\x2f\x4f\x62\x00\x38\x61\x75\x40\x68\x5d\x85\x90\xb1\xe5\xe5\x18\x8f\xa6\xe5\xc2\x51\x0e\x8f\xcc\x24\x7b\xcb\xf4\xd5\xf4\x26\x08\xe8\x5a\x40\xec\x2e\x15\x09\xb7\xcf\xdc\xa4\x5b\xd8\x8b\xc9\x30\x8d\x05\x66\x0c\x21\x5d\xeb\xf7\xbf\xd0\xa2\x8f\xaa\xf9\xb1\x45\x5f\x05\x56\xe2\x16\x6d", 71); *(uint8_t*)0x200003b0 = r[1]; *(uint8_t*)0x200003b8 = 4; memcpy((void*)0x200003b9, "\x36\x8e\x9f\xdf\x46\x21\x95\xa0\xb2\xf6\xf3\x8f\x1a\xa7\x87\xb5\x64\x01\x56\x28\x0b\x46\x01\xe2\x5d\x91\x17\xbd\x49\x7d\xb2\x7b\x1f\x3b\xb7\xbc\x75\xe1\x8d\x7f\xe7\x99\xe7\xaa\xa6\x26\x0c\x65\x76\x96\x55\xd0\x1a\x79\x28\xbb\x77\x50\x76\x95\x7c\x88\x52\x23\x08\x8d\x85\x4d\x2a\x29\xed\x9b\x6d\xc9\x95\xb2\x4e\x0f\x1f\xc8\xd7\x5f\x4c\x5a\xd7\x7b\x29\xc4\x71\xe6\x9c\x50\xb0\x14\x2e\x8b\x58\xa4\x5e\x1f\x03\xf2\x1b\x9a\xcf\x20\x9c", 107); syscall(SYS_foo, /*a=*/0x20000340ul, 0, 0); break; case 10: memcpy((void*)0x20000000, "[\000", 2); *(uint16_t*)0x20000040 = 0; *(uint32_t*)0x20000044 = 0xfffffffb; *(uint8_t*)0x20000048 = 1; *(uint16_t*)0x2000004a = 4; *(uint64_t*)0x20000050 = 0xa35; syz_compare(/*want=*/0x20000000, /*want_len=*/2, /*got=*/0x20000040, /*got_len=*/0x18); break; case 11: syz_compare_int(/*n=*/2, /*v0=*/6, /*v1=*/3, 0, 0); break; case 12: syz_errno(/*v=*/0x2a4c2702); break; case 13: memcpy((void*)0x20000080, "\xd0\xf0\xe2\x0f\x28\x9a\x08\xc0\xce\xa1\x86\x41\x4e\x80\x87\x32\x02\x2d\xbd\xfd\xfd\x97\xb8\x63\x59\x1c\xb8\x00\xc4\xe8\x31\x2a\x90\x34\x6c\x5c\x6d\x70\x46\x76\x15\xc7\x89\xe2\xcc\x78\x63\xfa\xb5\xa7", 50); syz_execute_func(/*text=*/0x20000080); break; case 14: syz_exit(/*status=*/0x1e8); break; case 15: syz_mmap(/*addr=*/0x20fff000, /*len=*/0x1000); break; case 16: syz_sleep_ms(/*ms=*/8); break; case 17: syz_test_fuzzer1(/*a=*/5, /*b=*/1, /*c=*/7); break; } } int main(void) { syz_mmap(/*addr=*/0x20000000, /*len=*/0x1000000); setup_fault(); use_temporary_dir(); do_sandbox_none(); return 0; } :324:3: error: call to undeclared function 'syscall'; ISO C99 and later do not support implicit function declarations [-Werror,-Wimplicit-function-declaration] syscall(SYS_test, /*a0=*/0x20000040ul, 0, 0, 0, 0, 0); ^ 1 error generated. compiler invocation: c++ [-o /tmp/syz-executor4245061005 -DGOOS_test=1 -DGOARCH_64=1 -DHOSTGOOS_openbsd=1 -x c - -m64 -lutil -O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wframe-larger-than=16384 -Wno-array-bounds -Wno-unused-but-set-variable -Wno-unused-command-line-argument -no-pie -fno-exceptions] --- FAIL: TestGenerate/test/64/9 (1.45s) csource_test.go:150: opts: {Threaded:true Repeat:true RepeatTimes:0 Procs:0 Slowdown:1 Sandbox:none SandboxArg:9223372036854775807 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Repro:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}} program: test$length32(&(0x7f0000000040)={[0x0, 0x100, 0xffffffff, 0x1, 0xffffff00, 0x5, 0x7fffffff, 0x3], {0x8}, &(0x7f0000000000)={0x8}}) (fail_nth: 1) csource7(0x2) (async) test$length6(&(0x7f0000000080)={[0x1f, 0x1, 0x2], 0x4}) (rerun: 4) test$length6(&(0x7f00000000c0)={[0xfff9, 0x101, 0x7ff, 0x3], 0x4}) test$recur0(&(0x7f0000000140)={&(0x7f0000000100)}) mutate2() test$recur0(&(0x7f0000000180)) foo$anyres(&(0x7f00000001c0), &(0x7f0000000200)=0x0, &(0x7f0000000240)) foo$anyres(&(0x7f0000000280)=0x0, &(0x7f00000002c0), &(0x7f0000000300)) foo$any0(&(0x7f0000000340)={0x5, 0x9, 0x0, 0x0, {0x1, 0x7, 0x1, 0x0, 0x0, 0x1}, [{@res32=r0, @i32=0x7ff, "732f4f620038617540685d8590b1e5e5188fa6e5c2510e8fcc247bcbf4d5f42608e85a40ec2e1509b7cfdca45bd88bc9308d05660c215debf7bfd0a28faaf9b1455f0556e2166d"}, {@res8=r1, @i8=0x4, "368e9fdf462195a0b2f6f38f1aa787b5640156280b4601e25d9117bd497db27b1f3bb7bc75e18d7fe799e7aaa6260c65769655d01a7928bb775076957c885223088d854d2a29ed9b6dc995b24e0f1fc8d75f4c5ad77b29c471e69c50b0142e8b58a45e1f03f21b9acf209c"}]}) syz_compare(&(0x7f0000000000)='[\x00', 0x2, &(0x7f0000000040)=@align0={0x0, 0xfffffffb, 0x1, 0x4, 0xa35}, 0x18) syz_compare_int$2(0x2, 0x6, 0x3) syz_errno(0x2a4c2702) syz_execute_func(&(0x7f0000000080)="d0f0e20f289a08c0cea186414e808732022dbdfdfd97b863591cb800c4e8312a90346c5c6d70467615c789e2cc7863fab5a7") syz_exit(0x1e8) syz_mmap(&(0x7f0000fff000/0x1000)=nil, 0x1000) syz_sleep_ms(0x8) syz_test_fuzzer1(0x5, 0x1, 0x7) csource_test.go:151: failed to build program: // autogenerated by syzkaller (https://github.com/google/syzkaller) #define _GNU_SOURCE #include #include #include #include #include #include #include #include #include #include #include #include #ifndef SYS_csource7 #define SYS_csource7 0 #endif #ifndef SYS_foo #define SYS_foo 0 #endif #ifndef SYS_mutate2 #define SYS_mutate2 0 #endif #ifndef SYS_test #define SYS_test 0 #endif 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 int inject_fault(int nth) { return 0; } static void setup_fault() { } 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)))) static long syz_mmap(volatile long a0, volatile long a1) { return (long)mmap((void*)a0, a1, PROT_READ | PROT_WRITE, MAP_ANON | MAP_PRIVATE | MAP_FIXED, -1, 0); } static long syz_errno(volatile long v) { errno = v; return v == 0 ? 0 : -1; } static long syz_exit(volatile long status) { _exit(status); return 0; } static long syz_sleep_ms(volatile long ms) { sleep_ms(ms); return 0; } static long syz_compare(volatile long want, volatile long want_len, volatile long got, volatile long got_len) { if (want_len != got_len) { errno = EBADF; goto error; } if (memcmp((void*)want, (void*)got, want_len)) { errno = EINVAL; goto error; } return 0; error: return -1; } static long syz_compare_int(volatile long n, ...) { va_list args; va_start(args, n); long v0 = va_arg(args, long); long v1 = va_arg(args, long); long v2 = va_arg(args, long); long v3 = va_arg(args, long); va_end(args); if (n < 2 || n > 4) return errno = E2BIG, -1; if (n <= 2 && v2 != 0) return errno = EFAULT, -1; if (n <= 3 && v3 != 0) return errno = EFAULT, -1; if (v0 != v1) return errno = EINVAL, -1; if (n > 2 && v0 != v2) return errno = EINVAL, -1; if (n > 3 && v0 != v3) return errno = EINVAL, -1; return 0; } static void loop(); static int do_sandbox_none(void) { loop(); return 0; } static void fake_crash(const char* name) { exit(1); exit(1); } static long syz_test_fuzzer1(volatile long a, volatile long b, volatile long c) { if (a == 1 && b == 1 && c == 1) fake_crash("first bug"); if (a == 1 && b == 2 && c == 3) fake_crash("second bug"); 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 < 18; call++) { for (thread = 0; thread < (int)(sizeof(threads) / sizeof(threads[0])); thread++) { struct thread_t* th = &threads[thread]; if (!th->created) { th->created = 1; event_init(&th->ready); event_init(&th->done); event_set(&th->done); thread_start(thr, th); } if (!event_isset(&th->done)) continue; event_reset(&th->done); th->call = call; __atomic_fetch_add(&running, 1, __ATOMIC_RELAXED); event_set(&th->ready); if (call == 1) break; event_timedwait(&th->done, 50); break; } } for (i = 0; i < 100 && __atomic_load_n(&running, __ATOMIC_RELAXED); i++) sleep_ms(1); } static void execute_one(void); static void loop(void) { execute_one(); } uint64_t r[2] = {0x0, 0x0}; void execute_call(int call) { intptr_t res = 0; switch (call) { case 0: *(uint32_t*)0x20000040 = 0; *(uint32_t*)0x20000044 = 0x100; *(uint32_t*)0x20000048 = -1; *(uint32_t*)0x2000004c = 1; *(uint32_t*)0x20000050 = 0xffffff00; *(uint32_t*)0x20000054 = 5; *(uint32_t*)0x20000058 = 0x7fffffff; *(uint32_t*)0x2000005c = 3; *(uint32_t*)0x20000060 = 8; *(uint64_t*)0x20000068 = 0x20000000; *(uint32_t*)0x20000000 = 8; inject_fault(1); syscall(SYS_test, /*a0=*/0x20000040ul, 0, 0, 0, 0, 0); break; case 1: syscall(SYS_csource7, /*flag=BIT_1*/2ul); break; case 2: *(uint16_t*)0x20000080 = 0x1f; *(uint16_t*)0x20000082 = 1; *(uint16_t*)0x20000084 = 2; *(uint16_t*)0x20000086 = 0; *(uint16_t*)0x20000088 = 4; syscall(SYS_test, /*a0=*/0x20000080ul, 0, 0, 0, 0, 0); { int i; for(i = 0; i < 4; i++) { syscall(SYS_test, /*a0=*/0x20000080ul, 0, 0, 0, 0, 0); } } break; case 3: *(uint16_t*)0x200000c0 = 0xfff9; *(uint16_t*)0x200000c2 = 0x101; *(uint16_t*)0x200000c4 = 0x7ff; *(uint16_t*)0x200000c6 = 3; *(uint16_t*)0x200000c8 = 4; syscall(SYS_test, /*a0=*/0x200000c0ul, 0, 0, 0, 0, 0); break; case 4: *(uint64_t*)0x20000140 = 0x20000100; *(uint64_t*)0x20000100 = 0; syscall(SYS_test, /*a0=*/0x20000140ul, 0, 0, 0, 0, 0); break; case 5: syscall(SYS_mutate2); break; case 6: *(uint64_t*)0x20000180 = 0; syscall(SYS_test, /*a0=*/0x20000180ul, 0, 0, 0, 0, 0); break; case 7: res = syscall(SYS_foo, /*a0=*/0x200001c0ul, /*a1=*/0x20000200ul, /*a2=*/0x20000240ul); if (res != -1) r[0] = *(uint32_t*)0x20000200; break; case 8: res = syscall(SYS_foo, /*a0=*/0x20000280ul, /*a1=*/0x200002c0ul, /*a2=*/0x20000300ul); if (res != -1) r[1] = *(uint8_t*)0x20000280; break; case 9: *(uint8_t*)0x20000340 = 5; *(uint32_t*)0x20000344 = 9; *(uint16_t*)0x20000348 = htobe16(0); *(uint64_t*)0x20000350 = 0; STORE_BY_BITMASK(uint8_t, , 0x20000358, 1, 0, 2); STORE_BY_BITMASK(uint8_t, , 0x20000358, 7, 2, 3); STORE_BY_BITMASK(uint8_t, , 0x20000358, 1, 5, 1); STORE_BY_BITMASK(uint16_t, , 0x20000358, 0, 6, 1); STORE_BY_BITMASK(uint16_t, , 0x2000035a, 0, 0, 10); STORE_BY_BITMASK(uint16_t, , 0x2000035a, 1, 10, 3); *(uint32_t*)0x2000035c = r[0]; *(uint32_t*)0x20000364 = 0x7ff; memcpy((void*)0x20000368, "\x73\x2f\x4f\x62\x00\x38\x61\x75\x40\x68\x5d\x85\x90\xb1\xe5\xe5\x18\x8f\xa6\xe5\xc2\x51\x0e\x8f\xcc\x24\x7b\xcb\xf4\xd5\xf4\x26\x08\xe8\x5a\x40\xec\x2e\x15\x09\xb7\xcf\xdc\xa4\x5b\xd8\x8b\xc9\x30\x8d\x05\x66\x0c\x21\x5d\xeb\xf7\xbf\xd0\xa2\x8f\xaa\xf9\xb1\x45\x5f\x05\x56\xe2\x16\x6d", 71); *(uint8_t*)0x200003b0 = r[1]; *(uint8_t*)0x200003b8 = 4; memcpy((void*)0x200003b9, "\x36\x8e\x9f\xdf\x46\x21\x95\xa0\xb2\xf6\xf3\x8f\x1a\xa7\x87\xb5\x64\x01\x56\x28\x0b\x46\x01\xe2\x5d\x91\x17\xbd\x49\x7d\xb2\x7b\x1f\x3b\xb7\xbc\x75\xe1\x8d\x7f\xe7\x99\xe7\xaa\xa6\x26\x0c\x65\x76\x96\x55\xd0\x1a\x79\x28\xbb\x77\x50\x76\x95\x7c\x88\x52\x23\x08\x8d\x85\x4d\x2a\x29\xed\x9b\x6d\xc9\x95\xb2\x4e\x0f\x1f\xc8\xd7\x5f\x4c\x5a\xd7\x7b\x29\xc4\x71\xe6\x9c\x50\xb0\x14\x2e\x8b\x58\xa4\x5e\x1f\x03\xf2\x1b\x9a\xcf\x20\x9c", 107); syscall(SYS_foo, /*a=*/0x20000340ul, 0, 0); break; case 10: memcpy((void*)0x20000000, "[\000", 2); *(uint16_t*)0x20000040 = 0; *(uint32_t*)0x20000044 = 0xfffffffb; *(uint8_t*)0x20000048 = 1; *(uint16_t*)0x2000004a = 4; *(uint64_t*)0x20000050 = 0xa35; syz_compare(/*want=*/0x20000000, /*want_len=*/2, /*got=*/0x20000040, /*got_len=*/0x18); break; case 11: syz_compare_int(/*n=*/2, /*v0=*/6, /*v1=*/3, 0, 0); break; case 12: syz_errno(/*v=*/0x2a4c2702); break; case 13: memcpy((void*)0x20000080, "\xd0\xf0\xe2\x0f\x28\x9a\x08\xc0\xce\xa1\x86\x41\x4e\x80\x87\x32\x02\x2d\xbd\xfd\xfd\x97\xb8\x63\x59\x1c\xb8\x00\xc4\xe8\x31\x2a\x90\x34\x6c\x5c\x6d\x70\x46\x76\x15\xc7\x89\xe2\xcc\x78\x63\xfa\xb5\xa7", 50); syz_execute_func(/*text=*/0x20000080); break; case 14: syz_exit(/*status=*/0x1e8); break; case 15: syz_mmap(/*addr=*/0x20fff000, /*len=*/0x1000); break; case 16: syz_sleep_ms(/*ms=*/8); break; case 17: syz_test_fuzzer1(/*a=*/5, /*b=*/1, /*c=*/7); break; } } int main(void) { syz_mmap(/*addr=*/0x20000000, /*len=*/0x1000000); setup_fault(); use_temporary_dir(); do_sandbox_none(); return 0; } :324:3: error: call to undeclared function 'syscall'; ISO C99 and later do not support implicit function declarations [-Werror,-Wimplicit-function-declaration] syscall(SYS_test, /*a0=*/0x20000040ul, 0, 0, 0, 0, 0); ^ 1 error generated. compiler invocation: c++ [-o /tmp/syz-executor2183787704 -DGOOS_test=1 -DGOARCH_64=1 -DHOSTGOOS_openbsd=1 -x c - -m64 -lutil -O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wframe-larger-than=16384 -Wno-array-bounds -Wno-unused-but-set-variable -Wno-unused-command-line-argument -no-pie -fno-exceptions] --- FAIL: TestGenerate/test/64/8 (1.68s) csource_test.go:150: opts: {Threaded:true Repeat:true RepeatTimes:0 Procs:0 Slowdown:1 Sandbox:none SandboxArg:-9223372036854775808 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Repro:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}} program: test$length32(&(0x7f0000000040)={[0x0, 0x100, 0xffffffff, 0x1, 0xffffff00, 0x5, 0x7fffffff, 0x3], {0x8}, &(0x7f0000000000)={0x8}}) (fail_nth: 1) csource7(0x2) (async) test$length6(&(0x7f0000000080)={[0x1f, 0x1, 0x2], 0x4}) (rerun: 4) test$length6(&(0x7f00000000c0)={[0xfff9, 0x101, 0x7ff, 0x3], 0x4}) test$recur0(&(0x7f0000000140)={&(0x7f0000000100)}) mutate2() test$recur0(&(0x7f0000000180)) foo$anyres(&(0x7f00000001c0), &(0x7f0000000200)=0x0, &(0x7f0000000240)) foo$anyres(&(0x7f0000000280)=0x0, &(0x7f00000002c0), &(0x7f0000000300)) foo$any0(&(0x7f0000000340)={0x5, 0x9, 0x0, 0x0, {0x1, 0x7, 0x1, 0x0, 0x0, 0x1}, [{@res32=r0, @i32=0x7ff, "732f4f620038617540685d8590b1e5e5188fa6e5c2510e8fcc247bcbf4d5f42608e85a40ec2e1509b7cfdca45bd88bc9308d05660c215debf7bfd0a28faaf9b1455f0556e2166d"}, {@res8=r1, @i8=0x4, "368e9fdf462195a0b2f6f38f1aa787b5640156280b4601e25d9117bd497db27b1f3bb7bc75e18d7fe799e7aaa6260c65769655d01a7928bb775076957c885223088d854d2a29ed9b6dc995b24e0f1fc8d75f4c5ad77b29c471e69c50b0142e8b58a45e1f03f21b9acf209c"}]}) syz_compare(&(0x7f0000000000)='[\x00', 0x2, &(0x7f0000000040)=@align0={0x0, 0xfffffffb, 0x1, 0x4, 0xa35}, 0x18) syz_compare_int$2(0x2, 0x6, 0x3) syz_errno(0x2a4c2702) syz_execute_func(&(0x7f0000000080)="d0f0e20f289a08c0cea186414e808732022dbdfdfd97b863591cb800c4e8312a90346c5c6d70467615c789e2cc7863fab5a7") syz_exit(0x1e8) syz_mmap(&(0x7f0000fff000/0x1000)=nil, 0x1000) syz_sleep_ms(0x8) syz_test_fuzzer1(0x5, 0x1, 0x7) csource_test.go:151: failed to build program: // autogenerated by syzkaller (https://github.com/google/syzkaller) #define _GNU_SOURCE #include #include #include #include #include #include #include #include #include #include #include #include #ifndef SYS_csource7 #define SYS_csource7 0 #endif #ifndef SYS_foo #define SYS_foo 0 #endif #ifndef SYS_mutate2 #define SYS_mutate2 0 #endif #ifndef SYS_test #define SYS_test 0 #endif 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 int inject_fault(int nth) { return 0; } static void setup_fault() { } 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)))) static long syz_mmap(volatile long a0, volatile long a1) { return (long)mmap((void*)a0, a1, PROT_READ | PROT_WRITE, MAP_ANON | MAP_PRIVATE | MAP_FIXED, -1, 0); } static long syz_errno(volatile long v) { errno = v; return v == 0 ? 0 : -1; } static long syz_exit(volatile long status) { _exit(status); return 0; } static long syz_sleep_ms(volatile long ms) { sleep_ms(ms); return 0; } static long syz_compare(volatile long want, volatile long want_len, volatile long got, volatile long got_len) { if (want_len != got_len) { errno = EBADF; goto error; } if (memcmp((void*)want, (void*)got, want_len)) { errno = EINVAL; goto error; } return 0; error: return -1; } static long syz_compare_int(volatile long n, ...) { va_list args; va_start(args, n); long v0 = va_arg(args, long); long v1 = va_arg(args, long); long v2 = va_arg(args, long); long v3 = va_arg(args, long); va_end(args); if (n < 2 || n > 4) return errno = E2BIG, -1; if (n <= 2 && v2 != 0) return errno = EFAULT, -1; if (n <= 3 && v3 != 0) return errno = EFAULT, -1; if (v0 != v1) return errno = EINVAL, -1; if (n > 2 && v0 != v2) return errno = EINVAL, -1; if (n > 3 && v0 != v3) return errno = EINVAL, -1; return 0; } static void loop(); static int do_sandbox_none(void) { loop(); return 0; } static void fake_crash(const char* name) { exit(1); exit(1); } static long syz_test_fuzzer1(volatile long a, volatile long b, volatile long c) { if (a == 1 && b == 1 && c == 1) fake_crash("first bug"); if (a == 1 && b == 2 && c == 3) fake_crash("second bug"); 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 < 18; call++) { for (thread = 0; thread < (int)(sizeof(threads) / sizeof(threads[0])); thread++) { struct thread_t* th = &threads[thread]; if (!th->created) { th->created = 1; event_init(&th->ready); event_init(&th->done); event_set(&th->done); thread_start(thr, th); } if (!event_isset(&th->done)) continue; event_reset(&th->done); th->call = call; __atomic_fetch_add(&running, 1, __ATOMIC_RELAXED); event_set(&th->ready); if (call == 1) break; event_timedwait(&th->done, 50); break; } } for (i = 0; i < 100 && __atomic_load_n(&running, __ATOMIC_RELAXED); i++) sleep_ms(1); } static void execute_one(void); static void loop(void) { execute_one(); } uint64_t r[2] = {0x0, 0x0}; void execute_call(int call) { intptr_t res = 0; switch (call) { case 0: *(uint32_t*)0x20000040 = 0; *(uint32_t*)0x20000044 = 0x100; *(uint32_t*)0x20000048 = -1; *(uint32_t*)0x2000004c = 1; *(uint32_t*)0x20000050 = 0xffffff00; *(uint32_t*)0x20000054 = 5; *(uint32_t*)0x20000058 = 0x7fffffff; *(uint32_t*)0x2000005c = 3; *(uint32_t*)0x20000060 = 8; *(uint64_t*)0x20000068 = 0x20000000; *(uint32_t*)0x20000000 = 8; inject_fault(1); syscall(SYS_test, /*a0=*/0x20000040ul, 0, 0, 0, 0, 0); break; case 1: syscall(SYS_csource7, /*flag=BIT_1*/2ul); break; case 2: *(uint16_t*)0x20000080 = 0x1f; *(uint16_t*)0x20000082 = 1; *(uint16_t*)0x20000084 = 2; *(uint16_t*)0x20000086 = 0; *(uint16_t*)0x20000088 = 4; syscall(SYS_test, /*a0=*/0x20000080ul, 0, 0, 0, 0, 0); { int i; for(i = 0; i < 4; i++) { syscall(SYS_test, /*a0=*/0x20000080ul, 0, 0, 0, 0, 0); } } break; case 3: *(uint16_t*)0x200000c0 = 0xfff9; *(uint16_t*)0x200000c2 = 0x101; *(uint16_t*)0x200000c4 = 0x7ff; *(uint16_t*)0x200000c6 = 3; *(uint16_t*)0x200000c8 = 4; syscall(SYS_test, /*a0=*/0x200000c0ul, 0, 0, 0, 0, 0); break; case 4: *(uint64_t*)0x20000140 = 0x20000100; *(uint64_t*)0x20000100 = 0; syscall(SYS_test, /*a0=*/0x20000140ul, 0, 0, 0, 0, 0); break; case 5: syscall(SYS_mutate2); break; case 6: *(uint64_t*)0x20000180 = 0; syscall(SYS_test, /*a0=*/0x20000180ul, 0, 0, 0, 0, 0); break; case 7: res = syscall(SYS_foo, /*a0=*/0x200001c0ul, /*a1=*/0x20000200ul, /*a2=*/0x20000240ul); if (res != -1) r[0] = *(uint32_t*)0x20000200; break; case 8: res = syscall(SYS_foo, /*a0=*/0x20000280ul, /*a1=*/0x200002c0ul, /*a2=*/0x20000300ul); if (res != -1) r[1] = *(uint8_t*)0x20000280; break; case 9: *(uint8_t*)0x20000340 = 5; *(uint32_t*)0x20000344 = 9; *(uint16_t*)0x20000348 = htobe16(0); *(uint64_t*)0x20000350 = 0; STORE_BY_BITMASK(uint8_t, , 0x20000358, 1, 0, 2); STORE_BY_BITMASK(uint8_t, , 0x20000358, 7, 2, 3); STORE_BY_BITMASK(uint8_t, , 0x20000358, 1, 5, 1); STORE_BY_BITMASK(uint16_t, , 0x20000358, 0, 6, 1); STORE_BY_BITMASK(uint16_t, , 0x2000035a, 0, 0, 10); STORE_BY_BITMASK(uint16_t, , 0x2000035a, 1, 10, 3); *(uint32_t*)0x2000035c = r[0]; *(uint32_t*)0x20000364 = 0x7ff; memcpy((void*)0x20000368, "\x73\x2f\x4f\x62\x00\x38\x61\x75\x40\x68\x5d\x85\x90\xb1\xe5\xe5\x18\x8f\xa6\xe5\xc2\x51\x0e\x8f\xcc\x24\x7b\xcb\xf4\xd5\xf4\x26\x08\xe8\x5a\x40\xec\x2e\x15\x09\xb7\xcf\xdc\xa4\x5b\xd8\x8b\xc9\x30\x8d\x05\x66\x0c\x21\x5d\xeb\xf7\xbf\xd0\xa2\x8f\xaa\xf9\xb1\x45\x5f\x05\x56\xe2\x16\x6d", 71); *(uint8_t*)0x200003b0 = r[1]; *(uint8_t*)0x200003b8 = 4; memcpy((void*)0x200003b9, "\x36\x8e\x9f\xdf\x46\x21\x95\xa0\xb2\xf6\xf3\x8f\x1a\xa7\x87\xb5\x64\x01\x56\x28\x0b\x46\x01\xe2\x5d\x91\x17\xbd\x49\x7d\xb2\x7b\x1f\x3b\xb7\xbc\x75\xe1\x8d\x7f\xe7\x99\xe7\xaa\xa6\x26\x0c\x65\x76\x96\x55\xd0\x1a\x79\x28\xbb\x77\x50\x76\x95\x7c\x88\x52\x23\x08\x8d\x85\x4d\x2a\x29\xed\x9b\x6d\xc9\x95\xb2\x4e\x0f\x1f\xc8\xd7\x5f\x4c\x5a\xd7\x7b\x29\xc4\x71\xe6\x9c\x50\xb0\x14\x2e\x8b\x58\xa4\x5e\x1f\x03\xf2\x1b\x9a\xcf\x20\x9c", 107); syscall(SYS_foo, /*a=*/0x20000340ul, 0, 0); break; case 10: memcpy((void*)0x20000000, "[\000", 2); *(uint16_t*)0x20000040 = 0; *(uint32_t*)0x20000044 = 0xfffffffb; *(uint8_t*)0x20000048 = 1; *(uint16_t*)0x2000004a = 4; *(uint64_t*)0x20000050 = 0xa35; syz_compare(/*want=*/0x20000000, /*want_len=*/2, /*got=*/0x20000040, /*got_len=*/0x18); break; case 11: syz_compare_int(/*n=*/2, /*v0=*/6, /*v1=*/3, 0, 0); break; case 12: syz_errno(/*v=*/0x2a4c2702); break; case 13: memcpy((void*)0x20000080, "\xd0\xf0\xe2\x0f\x28\x9a\x08\xc0\xce\xa1\x86\x41\x4e\x80\x87\x32\x02\x2d\xbd\xfd\xfd\x97\xb8\x63\x59\x1c\xb8\x00\xc4\xe8\x31\x2a\x90\x34\x6c\x5c\x6d\x70\x46\x76\x15\xc7\x89\xe2\xcc\x78\x63\xfa\xb5\xa7", 50); syz_execute_func(/*text=*/0x20000080); break; case 14: syz_exit(/*status=*/0x1e8); break; case 15: syz_mmap(/*addr=*/0x20fff000, /*len=*/0x1000); break; case 16: syz_sleep_ms(/*ms=*/8); break; case 17: syz_test_fuzzer1(/*a=*/5, /*b=*/1, /*c=*/7); break; } } int main(void) { syz_mmap(/*addr=*/0x20000000, /*len=*/0x1000000); setup_fault(); use_temporary_dir(); do_sandbox_none(); return 0; } :324:3: error: call to undeclared function 'syscall'; ISO C99 and later do not support implicit function declarations [-Werror,-Wimplicit-function-declaration] syscall(SYS_test, /*a0=*/0x20000040ul, 0, 0, 0, 0, 0); ^ 1 error generated. compiler invocation: c++ [-o /tmp/syz-executor3728402875 -DGOOS_test=1 -DGOARCH_64=1 -DHOSTGOOS_openbsd=1 -x c - -m64 -lutil -O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wframe-larger-than=16384 -Wno-array-bounds -Wno-unused-but-set-variable -Wno-unused-command-line-argument -no-pie -fno-exceptions] --- FAIL: TestGenerate/test/64/0 (1.69s) csource_test.go:150: opts: {Threaded:false Repeat:true RepeatTimes:0 Procs:0 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Repro:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}} program: test$length32(&(0x7f0000000040)={[0x0, 0x100, 0xffffffff, 0x1, 0xffffff00, 0x5, 0x7fffffff, 0x3], {0x8}, &(0x7f0000000000)={0x8}}) (fail_nth: 1) csource7(0x2) (async) test$length6(&(0x7f0000000080)={[0x1f, 0x1, 0x2], 0x4}) (rerun: 4) test$length6(&(0x7f00000000c0)={[0xfff9, 0x101, 0x7ff, 0x3], 0x4}) test$recur0(&(0x7f0000000140)={&(0x7f0000000100)}) mutate2() test$recur0(&(0x7f0000000180)) foo$anyres(&(0x7f00000001c0), &(0x7f0000000200)=0x0, &(0x7f0000000240)) foo$anyres(&(0x7f0000000280)=0x0, &(0x7f00000002c0), &(0x7f0000000300)) foo$any0(&(0x7f0000000340)={0x5, 0x9, 0x0, 0x0, {0x1, 0x7, 0x1, 0x0, 0x0, 0x1}, [{@res32=r0, @i32=0x7ff, "732f4f620038617540685d8590b1e5e5188fa6e5c2510e8fcc247bcbf4d5f42608e85a40ec2e1509b7cfdca45bd88bc9308d05660c215debf7bfd0a28faaf9b1455f0556e2166d"}, {@res8=r1, @i8=0x4, "368e9fdf462195a0b2f6f38f1aa787b5640156280b4601e25d9117bd497db27b1f3bb7bc75e18d7fe799e7aaa6260c65769655d01a7928bb775076957c885223088d854d2a29ed9b6dc995b24e0f1fc8d75f4c5ad77b29c471e69c50b0142e8b58a45e1f03f21b9acf209c"}]}) syz_compare(&(0x7f0000000000)='[\x00', 0x2, &(0x7f0000000040)=@align0={0x0, 0xfffffffb, 0x1, 0x4, 0xa35}, 0x18) syz_compare_int$2(0x2, 0x6, 0x3) syz_errno(0x2a4c2702) syz_execute_func(&(0x7f0000000080)="d0f0e20f289a08c0cea186414e808732022dbdfdfd97b863591cb800c4e8312a90346c5c6d70467615c789e2cc7863fab5a7") syz_exit(0x1e8) syz_mmap(&(0x7f0000fff000/0x1000)=nil, 0x1000) syz_sleep_ms(0x8) syz_test_fuzzer1(0x5, 0x1, 0x7) csource_test.go:151: failed to build program: // autogenerated by syzkaller (https://github.com/google/syzkaller) #define _GNU_SOURCE #include #include #include #include #include #include #include #include #include #include #ifndef SYS_csource7 #define SYS_csource7 0 #endif #ifndef SYS_foo #define SYS_foo 0 #endif #ifndef SYS_mutate2 #define SYS_mutate2 0 #endif #ifndef SYS_test #define SYS_test 0 #endif static void sleep_ms(uint64_t ms) { usleep(ms * 1000); } 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 int inject_fault(int nth) { return 0; } static void setup_fault() { } #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)))) static long syz_mmap(volatile long a0, volatile long a1) { return (long)mmap((void*)a0, a1, PROT_READ | PROT_WRITE, MAP_ANON | MAP_PRIVATE | MAP_FIXED, -1, 0); } static long syz_errno(volatile long v) { errno = v; return v == 0 ? 0 : -1; } static long syz_exit(volatile long status) { _exit(status); return 0; } static long syz_sleep_ms(volatile long ms) { sleep_ms(ms); return 0; } static long syz_compare(volatile long want, volatile long want_len, volatile long got, volatile long got_len) { if (want_len != got_len) { errno = EBADF; goto error; } if (memcmp((void*)want, (void*)got, want_len)) { errno = EINVAL; goto error; } return 0; error: return -1; } static long syz_compare_int(volatile long n, ...) { va_list args; va_start(args, n); long v0 = va_arg(args, long); long v1 = va_arg(args, long); long v2 = va_arg(args, long); long v3 = va_arg(args, long); va_end(args); if (n < 2 || n > 4) return errno = E2BIG, -1; if (n <= 2 && v2 != 0) return errno = EFAULT, -1; if (n <= 3 && v3 != 0) return errno = EFAULT, -1; if (v0 != v1) return errno = EINVAL, -1; if (n > 2 && v0 != v2) return errno = EINVAL, -1; if (n > 3 && v0 != v3) return errno = EINVAL, -1; return 0; } static void loop(); static int do_sandbox_none(void) { loop(); return 0; } static void fake_crash(const char* name) { exit(1); exit(1); } static long syz_test_fuzzer1(volatile long a, volatile long b, volatile long c) { if (a == 1 && b == 1 && c == 1) fake_crash("first bug"); if (a == 1 && b == 2 && c == 3) fake_crash("second bug"); return 0; } static long syz_execute_func(volatile long text) { ((void (*)(void))(text))(); return 0; } static void execute_one(void); static void loop(void) { execute_one(); } uint64_t r[2] = {0x0, 0x0}; void execute_one(void) { intptr_t res = 0; *(uint32_t*)0x20000040 = 0; *(uint32_t*)0x20000044 = 0x100; *(uint32_t*)0x20000048 = -1; *(uint32_t*)0x2000004c = 1; *(uint32_t*)0x20000050 = 0xffffff00; *(uint32_t*)0x20000054 = 5; *(uint32_t*)0x20000058 = 0x7fffffff; *(uint32_t*)0x2000005c = 3; *(uint32_t*)0x20000060 = 8; *(uint64_t*)0x20000068 = 0x20000000; *(uint32_t*)0x20000000 = 8; inject_fault(1); syscall(SYS_test, /*a0=*/0x20000040ul, 0, 0, 0, 0, 0); syscall(SYS_csource7, /*flag=BIT_1*/2ul); *(uint16_t*)0x20000080 = 0x1f; *(uint16_t*)0x20000082 = 1; *(uint16_t*)0x20000084 = 2; *(uint16_t*)0x20000086 = 0; *(uint16_t*)0x20000088 = 4; syscall(SYS_test, /*a0=*/0x20000080ul, 0, 0, 0, 0, 0); { int i; for(i = 0; i < 4; i++) { syscall(SYS_test, /*a0=*/0x20000080ul, 0, 0, 0, 0, 0); } } *(uint16_t*)0x200000c0 = 0xfff9; *(uint16_t*)0x200000c2 = 0x101; *(uint16_t*)0x200000c4 = 0x7ff; *(uint16_t*)0x200000c6 = 3; *(uint16_t*)0x200000c8 = 4; syscall(SYS_test, /*a0=*/0x200000c0ul, 0, 0, 0, 0, 0); *(uint64_t*)0x20000140 = 0x20000100; *(uint64_t*)0x20000100 = 0; syscall(SYS_test, /*a0=*/0x20000140ul, 0, 0, 0, 0, 0); syscall(SYS_mutate2); *(uint64_t*)0x20000180 = 0; syscall(SYS_test, /*a0=*/0x20000180ul, 0, 0, 0, 0, 0); res = syscall(SYS_foo, /*a0=*/0x200001c0ul, /*a1=*/0x20000200ul, /*a2=*/0x20000240ul); if (res != -1) r[0] = *(uint32_t*)0x20000200; res = syscall(SYS_foo, /*a0=*/0x20000280ul, /*a1=*/0x200002c0ul, /*a2=*/0x20000300ul); if (res != -1) r[1] = *(uint8_t*)0x20000280; *(uint8_t*)0x20000340 = 5; *(uint32_t*)0x20000344 = 9; *(uint16_t*)0x20000348 = htobe16(0); *(uint64_t*)0x20000350 = 0; STORE_BY_BITMASK(uint8_t, , 0x20000358, 1, 0, 2); STORE_BY_BITMASK(uint8_t, , 0x20000358, 7, 2, 3); STORE_BY_BITMASK(uint8_t, , 0x20000358, 1, 5, 1); STORE_BY_BITMASK(uint16_t, , 0x20000358, 0, 6, 1); STORE_BY_BITMASK(uint16_t, , 0x2000035a, 0, 0, 10); STORE_BY_BITMASK(uint16_t, , 0x2000035a, 1, 10, 3); *(uint32_t*)0x2000035c = r[0]; *(uint32_t*)0x20000364 = 0x7ff; memcpy((void*)0x20000368, "\x73\x2f\x4f\x62\x00\x38\x61\x75\x40\x68\x5d\x85\x90\xb1\xe5\xe5\x18\x8f\xa6\xe5\xc2\x51\x0e\x8f\xcc\x24\x7b\xcb\xf4\xd5\xf4\x26\x08\xe8\x5a\x40\xec\x2e\x15\x09\xb7\xcf\xdc\xa4\x5b\xd8\x8b\xc9\x30\x8d\x05\x66\x0c\x21\x5d\xeb\xf7\xbf\xd0\xa2\x8f\xaa\xf9\xb1\x45\x5f\x05\x56\xe2\x16\x6d", 71); *(uint8_t*)0x200003b0 = r[1]; *(uint8_t*)0x200003b8 = 4; memcpy((void*)0x200003b9, "\x36\x8e\x9f\xdf\x46\x21\x95\xa0\xb2\xf6\xf3\x8f\x1a\xa7\x87\xb5\x64\x01\x56\x28\x0b\x46\x01\xe2\x5d\x91\x17\xbd\x49\x7d\xb2\x7b\x1f\x3b\xb7\xbc\x75\xe1\x8d\x7f\xe7\x99\xe7\xaa\xa6\x26\x0c\x65\x76\x96\x55\xd0\x1a\x79\x28\xbb\x77\x50\x76\x95\x7c\x88\x52\x23\x08\x8d\x85\x4d\x2a\x29\xed\x9b\x6d\xc9\x95\xb2\x4e\x0f\x1f\xc8\xd7\x5f\x4c\x5a\xd7\x7b\x29\xc4\x71\xe6\x9c\x50\xb0\x14\x2e\x8b\x58\xa4\x5e\x1f\x03\xf2\x1b\x9a\xcf\x20\x9c", 107); syscall(SYS_foo, /*a=*/0x20000340ul, 0, 0); memcpy((void*)0x20000000, "[\000", 2); *(uint16_t*)0x20000040 = 0; *(uint32_t*)0x20000044 = 0xfffffffb; *(uint8_t*)0x20000048 = 1; *(uint16_t*)0x2000004a = 4; *(uint64_t*)0x20000050 = 0xa35; syz_compare(/*want=*/0x20000000, /*want_len=*/2, /*got=*/0x20000040, /*got_len=*/0x18); syz_compare_int(/*n=*/2, /*v0=*/6, /*v1=*/3, 0, 0); syz_errno(/*v=*/0x2a4c2702); memcpy((void*)0x20000080, "\xd0\xf0\xe2\x0f\x28\x9a\x08\xc0\xce\xa1\x86\x41\x4e\x80\x87\x32\x02\x2d\xbd\xfd\xfd\x97\xb8\x63\x59\x1c\xb8\x00\xc4\xe8\x31\x2a\x90\x34\x6c\x5c\x6d\x70\x46\x76\x15\xc7\x89\xe2\xcc\x78\x63\xfa\xb5\xa7", 50); syz_execute_func(/*text=*/0x20000080); syz_exit(/*status=*/0x1e8); syz_mmap(/*addr=*/0x20fff000, /*len=*/0x1000); syz_sleep_ms(/*ms=*/8); syz_test_fuzzer1(/*a=*/5, /*b=*/1, /*c=*/7); } int main(void) { syz_mmap(/*addr=*/0x20000000, /*len=*/0x1000000); setup_fault(); use_temporary_dir(); do_sandbox_none(); return 0; } :172:2: error: call to undeclared function 'syscall'; ISO C99 and later do not support implicit function declarations [-Werror,-Wimplicit-function-declaration] syscall(SYS_test, /*a0=*/0x20000040ul, 0, 0, 0, 0, 0); ^ 1 error generated. compiler invocation: c++ [-o /tmp/syz-executor784062655 -DGOOS_test=1 -DGOARCH_64=1 -DHOSTGOOS_openbsd=1 -x c - -m64 -lutil -O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wframe-larger-than=16384 -Wno-array-bounds -Wno-unused-but-set-variable -Wno-unused-command-line-argument -no-pie -fno-exceptions] --- FAIL: TestGenerate/test/64/10 (1.80s) csource_test.go:150: opts: {Threaded:true Repeat:true RepeatTimes:0 Procs:0 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Repro:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}} program: test$length32(&(0x7f0000000040)={[0x0, 0x100, 0xffffffff, 0x1, 0xffffff00, 0x5, 0x7fffffff, 0x3], {0x8}, &(0x7f0000000000)={0x8}}) (fail_nth: 1) csource7(0x2) (async) test$length6(&(0x7f0000000080)={[0x1f, 0x1, 0x2], 0x4}) (rerun: 4) test$length6(&(0x7f00000000c0)={[0xfff9, 0x101, 0x7ff, 0x3], 0x4}) test$recur0(&(0x7f0000000140)={&(0x7f0000000100)}) mutate2() test$recur0(&(0x7f0000000180)) foo$anyres(&(0x7f00000001c0), &(0x7f0000000200)=0x0, &(0x7f0000000240)) foo$anyres(&(0x7f0000000280)=0x0, &(0x7f00000002c0), &(0x7f0000000300)) foo$any0(&(0x7f0000000340)={0x5, 0x9, 0x0, 0x0, {0x1, 0x7, 0x1, 0x0, 0x0, 0x1}, [{@res32=r0, @i32=0x7ff, "732f4f620038617540685d8590b1e5e5188fa6e5c2510e8fcc247bcbf4d5f42608e85a40ec2e1509b7cfdca45bd88bc9308d05660c215debf7bfd0a28faaf9b1455f0556e2166d"}, {@res8=r1, @i8=0x4, "368e9fdf462195a0b2f6f38f1aa787b5640156280b4601e25d9117bd497db27b1f3bb7bc75e18d7fe799e7aaa6260c65769655d01a7928bb775076957c885223088d854d2a29ed9b6dc995b24e0f1fc8d75f4c5ad77b29c471e69c50b0142e8b58a45e1f03f21b9acf209c"}]}) syz_compare(&(0x7f0000000000)='[\x00', 0x2, &(0x7f0000000040)=@align0={0x0, 0xfffffffb, 0x1, 0x4, 0xa35}, 0x18) syz_compare_int$2(0x2, 0x6, 0x3) syz_errno(0x2a4c2702) syz_execute_func(&(0x7f0000000080)="d0f0e20f289a08c0cea186414e808732022dbdfdfd97b863591cb800c4e8312a90346c5c6d70467615c789e2cc7863fab5a7") syz_exit(0x1e8) syz_mmap(&(0x7f0000fff000/0x1000)=nil, 0x1000) syz_sleep_ms(0x8) syz_test_fuzzer1(0x5, 0x1, 0x7) csource_test.go:151: failed to build program: // autogenerated by syzkaller (https://github.com/google/syzkaller) #define _GNU_SOURCE #include #include #include #include #include #include #include #include #include #include #include #ifndef SYS_csource7 #define SYS_csource7 0 #endif #ifndef SYS_foo #define SYS_foo 0 #endif #ifndef SYS_mutate2 #define SYS_mutate2 0 #endif #ifndef SYS_test #define SYS_test 0 #endif 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 int inject_fault(int nth) { return 0; } static void setup_fault() { } 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)))) static long syz_mmap(volatile long a0, volatile long a1) { return (long)mmap((void*)a0, a1, PROT_READ | PROT_WRITE, MAP_ANON | MAP_PRIVATE | MAP_FIXED, -1, 0); } static long syz_errno(volatile long v) { errno = v; return v == 0 ? 0 : -1; } static long syz_exit(volatile long status) { _exit(status); return 0; } static long syz_sleep_ms(volatile long ms) { sleep_ms(ms); return 0; } static long syz_compare(volatile long want, volatile long want_len, volatile long got, volatile long got_len) { if (want_len != got_len) { errno = EBADF; goto error; } if (memcmp((void*)want, (void*)got, want_len)) { errno = EINVAL; goto error; } return 0; error: return -1; } static long syz_compare_int(volatile long n, ...) { va_list args; va_start(args, n); long v0 = va_arg(args, long); long v1 = va_arg(args, long); long v2 = va_arg(args, long); long v3 = va_arg(args, long); va_end(args); if (n < 2 || n > 4) return errno = E2BIG, -1; if (n <= 2 && v2 != 0) return errno = EFAULT, -1; if (n <= 3 && v3 != 0) return errno = EFAULT, -1; if (v0 != v1) return errno = EINVAL, -1; if (n > 2 && v0 != v2) return errno = EINVAL, -1; if (n > 3 && v0 != v3) return errno = EINVAL, -1; return 0; } static void loop(); static int do_sandbox_none(void) { loop(); return 0; } static void fake_crash(const char* name) { exit(1); exit(1); } static long syz_test_fuzzer1(volatile long a, volatile long b, volatile long c) { if (a == 1 && b == 1 && c == 1) fake_crash("first bug"); if (a == 1 && b == 2 && c == 3) fake_crash("second bug"); 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 < 18; call++) { for (thread = 0; thread < (int)(sizeof(threads) / sizeof(threads[0])); thread++) { struct thread_t* th = &threads[thread]; if (!th->created) { th->created = 1; event_init(&th->ready); event_init(&th->done); event_set(&th->done); thread_start(thr, th); } if (!event_isset(&th->done)) continue; event_reset(&th->done); th->call = call; __atomic_fetch_add(&running, 1, __ATOMIC_RELAXED); event_set(&th->ready); if (call == 1) break; event_timedwait(&th->done, 50); break; } } for (i = 0; i < 100 && __atomic_load_n(&running, __ATOMIC_RELAXED); i++) sleep_ms(1); } static void execute_one(void); static void loop(void) { execute_one(); } uint64_t r[2] = {0x0, 0x0}; void execute_call(int call) { intptr_t res = 0; switch (call) { case 0: *(uint32_t*)0x20000040 = 0; *(uint32_t*)0x20000044 = 0x100; *(uint32_t*)0x20000048 = -1; *(uint32_t*)0x2000004c = 1; *(uint32_t*)0x20000050 = 0xffffff00; *(uint32_t*)0x20000054 = 5; *(uint32_t*)0x20000058 = 0x7fffffff; *(uint32_t*)0x2000005c = 3; *(uint32_t*)0x20000060 = 8; *(uint64_t*)0x20000068 = 0x20000000; *(uint32_t*)0x20000000 = 8; inject_fault(1); syscall(SYS_test, /*a0=*/0x20000040ul, 0, 0, 0, 0, 0); break; case 1: syscall(SYS_csource7, /*flag=BIT_1*/2ul); break; case 2: *(uint16_t*)0x20000080 = 0x1f; *(uint16_t*)0x20000082 = 1; *(uint16_t*)0x20000084 = 2; *(uint16_t*)0x20000086 = 0; *(uint16_t*)0x20000088 = 4; syscall(SYS_test, /*a0=*/0x20000080ul, 0, 0, 0, 0, 0); { int i; for(i = 0; i < 4; i++) { syscall(SYS_test, /*a0=*/0x20000080ul, 0, 0, 0, 0, 0); } } break; case 3: *(uint16_t*)0x200000c0 = 0xfff9; *(uint16_t*)0x200000c2 = 0x101; *(uint16_t*)0x200000c4 = 0x7ff; *(uint16_t*)0x200000c6 = 3; *(uint16_t*)0x200000c8 = 4; syscall(SYS_test, /*a0=*/0x200000c0ul, 0, 0, 0, 0, 0); break; case 4: *(uint64_t*)0x20000140 = 0x20000100; *(uint64_t*)0x20000100 = 0; syscall(SYS_test, /*a0=*/0x20000140ul, 0, 0, 0, 0, 0); break; case 5: syscall(SYS_mutate2); break; case 6: *(uint64_t*)0x20000180 = 0; syscall(SYS_test, /*a0=*/0x20000180ul, 0, 0, 0, 0, 0); break; case 7: res = syscall(SYS_foo, /*a0=*/0x200001c0ul, /*a1=*/0x20000200ul, /*a2=*/0x20000240ul); if (res != -1) r[0] = *(uint32_t*)0x20000200; break; case 8: res = syscall(SYS_foo, /*a0=*/0x20000280ul, /*a1=*/0x200002c0ul, /*a2=*/0x20000300ul); if (res != -1) r[1] = *(uint8_t*)0x20000280; break; case 9: *(uint8_t*)0x20000340 = 5; *(uint32_t*)0x20000344 = 9; *(uint16_t*)0x20000348 = htobe16(0); *(uint64_t*)0x20000350 = 0; STORE_BY_BITMASK(uint8_t, , 0x20000358, 1, 0, 2); STORE_BY_BITMASK(uint8_t, , 0x20000358, 7, 2, 3); STORE_BY_BITMASK(uint8_t, , 0x20000358, 1, 5, 1); STORE_BY_BITMASK(uint16_t, , 0x20000358, 0, 6, 1); STORE_BY_BITMASK(uint16_t, , 0x2000035a, 0, 0, 10); STORE_BY_BITMASK(uint16_t, , 0x2000035a, 1, 10, 3); *(uint32_t*)0x2000035c = r[0]; *(uint32_t*)0x20000364 = 0x7ff; memcpy((void*)0x20000368, "\x73\x2f\x4f\x62\x00\x38\x61\x75\x40\x68\x5d\x85\x90\xb1\xe5\xe5\x18\x8f\xa6\xe5\xc2\x51\x0e\x8f\xcc\x24\x7b\xcb\xf4\xd5\xf4\x26\x08\xe8\x5a\x40\xec\x2e\x15\x09\xb7\xcf\xdc\xa4\x5b\xd8\x8b\xc9\x30\x8d\x05\x66\x0c\x21\x5d\xeb\xf7\xbf\xd0\xa2\x8f\xaa\xf9\xb1\x45\x5f\x05\x56\xe2\x16\x6d", 71); *(uint8_t*)0x200003b0 = r[1]; *(uint8_t*)0x200003b8 = 4; memcpy((void*)0x200003b9, "\x36\x8e\x9f\xdf\x46\x21\x95\xa0\xb2\xf6\xf3\x8f\x1a\xa7\x87\xb5\x64\x01\x56\x28\x0b\x46\x01\xe2\x5d\x91\x17\xbd\x49\x7d\xb2\x7b\x1f\x3b\xb7\xbc\x75\xe1\x8d\x7f\xe7\x99\xe7\xaa\xa6\x26\x0c\x65\x76\x96\x55\xd0\x1a\x79\x28\xbb\x77\x50\x76\x95\x7c\x88\x52\x23\x08\x8d\x85\x4d\x2a\x29\xed\x9b\x6d\xc9\x95\xb2\x4e\x0f\x1f\xc8\xd7\x5f\x4c\x5a\xd7\x7b\x29\xc4\x71\xe6\x9c\x50\xb0\x14\x2e\x8b\x58\xa4\x5e\x1f\x03\xf2\x1b\x9a\xcf\x20\x9c", 107); syscall(SYS_foo, /*a=*/0x20000340ul, 0, 0); break; case 10: memcpy((void*)0x20000000, "[\000", 2); *(uint16_t*)0x20000040 = 0; *(uint32_t*)0x20000044 = 0xfffffffb; *(uint8_t*)0x20000048 = 1; *(uint16_t*)0x2000004a = 4; *(uint64_t*)0x20000050 = 0xa35; syz_compare(/*want=*/0x20000000, /*want_len=*/2, /*got=*/0x20000040, /*got_len=*/0x18); break; case 11: syz_compare_int(/*n=*/2, /*v0=*/6, /*v1=*/3, 0, 0); break; case 12: syz_errno(/*v=*/0x2a4c2702); break; case 13: memcpy((void*)0x20000080, "\xd0\xf0\xe2\x0f\x28\x9a\x08\xc0\xce\xa1\x86\x41\x4e\x80\x87\x32\x02\x2d\xbd\xfd\xfd\x97\xb8\x63\x59\x1c\xb8\x00\xc4\xe8\x31\x2a\x90\x34\x6c\x5c\x6d\x70\x46\x76\x15\xc7\x89\xe2\xcc\x78\x63\xfa\xb5\xa7", 50); syz_execute_func(/*text=*/0x20000080); break; case 14: syz_exit(/*status=*/0x1e8); break; case 15: syz_mmap(/*addr=*/0x20fff000, /*len=*/0x1000); break; case 16: syz_sleep_ms(/*ms=*/8); break; case 17: syz_test_fuzzer1(/*a=*/5, /*b=*/1, /*c=*/7); break; } } int main(void) { syz_mmap(/*addr=*/0x20000000, /*len=*/0x1000000); setup_fault(); do_sandbox_none(); return 0; } :311:3: error: call to undeclared function 'syscall'; ISO C99 and later do not support implicit function declarations [-Werror,-Wimplicit-function-declaration] syscall(SYS_test, /*a0=*/0x20000040ul, 0, 0, 0, 0, 0); ^ 1 error generated. compiler invocation: c++ [-o /tmp/syz-executor1112547940 -DGOOS_test=1 -DGOARCH_64=1 -DHOSTGOOS_openbsd=1 -x c - -m64 -lutil -O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wframe-larger-than=16384 -Wno-array-bounds -Wno-unused-but-set-variable -Wno-unused-command-line-argument -no-pie -fno-exceptions] --- FAIL: TestGenerate/test/64/12 (2.14s) csource_test.go:150: opts: {Threaded:true Repeat:true RepeatTimes:0 Procs:0 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Repro:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}} program: test$length32(&(0x7f0000000040)={[0x0, 0x100, 0xffffffff, 0x1, 0xffffff00, 0x5, 0x7fffffff, 0x3], {0x8}, &(0x7f0000000000)={0x8}}) (fail_nth: 1) csource7(0x2) (async) test$length6(&(0x7f0000000080)={[0x1f, 0x1, 0x2], 0x4}) (rerun: 4) test$length6(&(0x7f00000000c0)={[0xfff9, 0x101, 0x7ff, 0x3], 0x4}) test$recur0(&(0x7f0000000140)={&(0x7f0000000100)}) mutate2() test$recur0(&(0x7f0000000180)) foo$anyres(&(0x7f00000001c0), &(0x7f0000000200)=0x0, &(0x7f0000000240)) foo$anyres(&(0x7f0000000280)=0x0, &(0x7f00000002c0), &(0x7f0000000300)) foo$any0(&(0x7f0000000340)={0x5, 0x9, 0x0, 0x0, {0x1, 0x7, 0x1, 0x0, 0x0, 0x1}, [{@res32=r0, @i32=0x7ff, "732f4f620038617540685d8590b1e5e5188fa6e5c2510e8fcc247bcbf4d5f42608e85a40ec2e1509b7cfdca45bd88bc9308d05660c215debf7bfd0a28faaf9b1455f0556e2166d"}, {@res8=r1, @i8=0x4, "368e9fdf462195a0b2f6f38f1aa787b5640156280b4601e25d9117bd497db27b1f3bb7bc75e18d7fe799e7aaa6260c65769655d01a7928bb775076957c885223088d854d2a29ed9b6dc995b24e0f1fc8d75f4c5ad77b29c471e69c50b0142e8b58a45e1f03f21b9acf209c"}]}) syz_compare(&(0x7f0000000000)='[\x00', 0x2, &(0x7f0000000040)=@align0={0x0, 0xfffffffb, 0x1, 0x4, 0xa35}, 0x18) syz_compare_int$2(0x2, 0x6, 0x3) syz_errno(0x2a4c2702) syz_execute_func(&(0x7f0000000080)="d0f0e20f289a08c0cea186414e808732022dbdfdfd97b863591cb800c4e8312a90346c5c6d70467615c789e2cc7863fab5a7") syz_exit(0x1e8) syz_mmap(&(0x7f0000fff000/0x1000)=nil, 0x1000) syz_sleep_ms(0x8) syz_test_fuzzer1(0x5, 0x1, 0x7) csource_test.go:151: failed to build program: // autogenerated by syzkaller (https://github.com/google/syzkaller) #define _GNU_SOURCE #include #include #include #include #include #include #include #include #include #include #include #include #ifndef SYS_csource7 #define SYS_csource7 0 #endif #ifndef SYS_foo #define SYS_foo 0 #endif #ifndef SYS_mutate2 #define SYS_mutate2 0 #endif #ifndef SYS_test #define SYS_test 0 #endif 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 int inject_fault(int nth) { return 0; } static void setup_fault() { } 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)))) static long syz_mmap(volatile long a0, volatile long a1) { return (long)mmap((void*)a0, a1, PROT_READ | PROT_WRITE, MAP_ANON | MAP_PRIVATE | MAP_FIXED, -1, 0); } static long syz_errno(volatile long v) { errno = v; return v == 0 ? 0 : -1; } static long syz_exit(volatile long status) { _exit(status); return 0; } static long syz_sleep_ms(volatile long ms) { sleep_ms(ms); return 0; } static long syz_compare(volatile long want, volatile long want_len, volatile long got, volatile long got_len) { if (want_len != got_len) { errno = EBADF; goto error; } if (memcmp((void*)want, (void*)got, want_len)) { errno = EINVAL; goto error; } return 0; error: return -1; } static long syz_compare_int(volatile long n, ...) { va_list args; va_start(args, n); long v0 = va_arg(args, long); long v1 = va_arg(args, long); long v2 = va_arg(args, long); long v3 = va_arg(args, long); va_end(args); if (n < 2 || n > 4) return errno = E2BIG, -1; if (n <= 2 && v2 != 0) return errno = EFAULT, -1; if (n <= 3 && v3 != 0) return errno = EFAULT, -1; if (v0 != v1) return errno = EINVAL, -1; if (n > 2 && v0 != v2) return errno = EINVAL, -1; if (n > 3 && v0 != v3) return errno = EINVAL, -1; return 0; } static void loop(); static int do_sandbox_none(void) { loop(); return 0; } static void fake_crash(const char* name) { exit(1); exit(1); } static long syz_test_fuzzer1(volatile long a, volatile long b, volatile long c) { if (a == 1 && b == 1 && c == 1) fake_crash("first bug"); if (a == 1 && b == 2 && c == 3) fake_crash("second bug"); 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 < 18; call++) { for (thread = 0; thread < (int)(sizeof(threads) / sizeof(threads[0])); thread++) { struct thread_t* th = &threads[thread]; if (!th->created) { th->created = 1; event_init(&th->ready); event_init(&th->done); event_set(&th->done); thread_start(thr, th); } if (!event_isset(&th->done)) continue; event_reset(&th->done); th->call = call; __atomic_fetch_add(&running, 1, __ATOMIC_RELAXED); event_set(&th->ready); if (call == 1) break; event_timedwait(&th->done, 50); break; } } for (i = 0; i < 100 && __atomic_load_n(&running, __ATOMIC_RELAXED); i++) sleep_ms(1); } static void execute_one(void); static void loop(void) { execute_one(); } uint64_t r[2] = {0x0, 0x0}; void execute_call(int call) { intptr_t res = 0; switch (call) { case 0: *(uint32_t*)0x20000040 = 0; *(uint32_t*)0x20000044 = 0x100; *(uint32_t*)0x20000048 = -1; *(uint32_t*)0x2000004c = 1; *(uint32_t*)0x20000050 = 0xffffff00; *(uint32_t*)0x20000054 = 5; *(uint32_t*)0x20000058 = 0x7fffffff; *(uint32_t*)0x2000005c = 3; *(uint32_t*)0x20000060 = 8; *(uint64_t*)0x20000068 = 0x20000000; *(uint32_t*)0x20000000 = 8; inject_fault(1); syscall(SYS_test, /*a0=*/0x20000040ul, 0, 0, 0, 0, 0); break; case 1: syscall(SYS_csource7, /*flag=BIT_1*/2ul); break; case 2: *(uint16_t*)0x20000080 = 0x1f; *(uint16_t*)0x20000082 = 1; *(uint16_t*)0x20000084 = 2; *(uint16_t*)0x20000086 = 0; *(uint16_t*)0x20000088 = 4; syscall(SYS_test, /*a0=*/0x20000080ul, 0, 0, 0, 0, 0); { int i; for(i = 0; i < 4; i++) { syscall(SYS_test, /*a0=*/0x20000080ul, 0, 0, 0, 0, 0); } } break; case 3: *(uint16_t*)0x200000c0 = 0xfff9; *(uint16_t*)0x200000c2 = 0x101; *(uint16_t*)0x200000c4 = 0x7ff; *(uint16_t*)0x200000c6 = 3; *(uint16_t*)0x200000c8 = 4; syscall(SYS_test, /*a0=*/0x200000c0ul, 0, 0, 0, 0, 0); break; case 4: *(uint64_t*)0x20000140 = 0x20000100; *(uint64_t*)0x20000100 = 0; syscall(SYS_test, /*a0=*/0x20000140ul, 0, 0, 0, 0, 0); break; case 5: syscall(SYS_mutate2); break; case 6: *(uint64_t*)0x20000180 = 0; syscall(SYS_test, /*a0=*/0x20000180ul, 0, 0, 0, 0, 0); break; case 7: res = syscall(SYS_foo, /*a0=*/0x200001c0ul, /*a1=*/0x20000200ul, /*a2=*/0x20000240ul); if (res != -1) r[0] = *(uint32_t*)0x20000200; break; case 8: res = syscall(SYS_foo, /*a0=*/0x20000280ul, /*a1=*/0x200002c0ul, /*a2=*/0x20000300ul); if (res != -1) r[1] = *(uint8_t*)0x20000280; break; case 9: *(uint8_t*)0x20000340 = 5; *(uint32_t*)0x20000344 = 9; *(uint16_t*)0x20000348 = htobe16(0); *(uint64_t*)0x20000350 = 0; STORE_BY_BITMASK(uint8_t, , 0x20000358, 1, 0, 2); STORE_BY_BITMASK(uint8_t, , 0x20000358, 7, 2, 3); STORE_BY_BITMASK(uint8_t, , 0x20000358, 1, 5, 1); STORE_BY_BITMASK(uint16_t, , 0x20000358, 0, 6, 1); STORE_BY_BITMASK(uint16_t, , 0x2000035a, 0, 0, 10); STORE_BY_BITMASK(uint16_t, , 0x2000035a, 1, 10, 3); *(uint32_t*)0x2000035c = r[0]; *(uint32_t*)0x20000364 = 0x7ff; memcpy((void*)0x20000368, "\x73\x2f\x4f\x62\x00\x38\x61\x75\x40\x68\x5d\x85\x90\xb1\xe5\xe5\x18\x8f\xa6\xe5\xc2\x51\x0e\x8f\xcc\x24\x7b\xcb\xf4\xd5\xf4\x26\x08\xe8\x5a\x40\xec\x2e\x15\x09\xb7\xcf\xdc\xa4\x5b\xd8\x8b\xc9\x30\x8d\x05\x66\x0c\x21\x5d\xeb\xf7\xbf\xd0\xa2\x8f\xaa\xf9\xb1\x45\x5f\x05\x56\xe2\x16\x6d", 71); *(uint8_t*)0x200003b0 = r[1]; *(uint8_t*)0x200003b8 = 4; memcpy((void*)0x200003b9, "\x36\x8e\x9f\xdf\x46\x21\x95\xa0\xb2\xf6\xf3\x8f\x1a\xa7\x87\xb5\x64\x01\x56\x28\x0b\x46\x01\xe2\x5d\x91\x17\xbd\x49\x7d\xb2\x7b\x1f\x3b\xb7\xbc\x75\xe1\x8d\x7f\xe7\x99\xe7\xaa\xa6\x26\x0c\x65\x76\x96\x55\xd0\x1a\x79\x28\xbb\x77\x50\x76\x95\x7c\x88\x52\x23\x08\x8d\x85\x4d\x2a\x29\xed\x9b\x6d\xc9\x95\xb2\x4e\x0f\x1f\xc8\xd7\x5f\x4c\x5a\xd7\x7b\x29\xc4\x71\xe6\x9c\x50\xb0\x14\x2e\x8b\x58\xa4\x5e\x1f\x03\xf2\x1b\x9a\xcf\x20\x9c", 107); syscall(SYS_foo, /*a=*/0x20000340ul, 0, 0); break; case 10: memcpy((void*)0x20000000, "[\000", 2); *(uint16_t*)0x20000040 = 0; *(uint32_t*)0x20000044 = 0xfffffffb; *(uint8_t*)0x20000048 = 1; *(uint16_t*)0x2000004a = 4; *(uint64_t*)0x20000050 = 0xa35; syz_compare(/*want=*/0x20000000, /*want_len=*/2, /*got=*/0x20000040, /*got_len=*/0x18); break; case 11: syz_compare_int(/*n=*/2, /*v0=*/6, /*v1=*/3, 0, 0); break; case 12: syz_errno(/*v=*/0x2a4c2702); break; case 13: memcpy((void*)0x20000080, "\xd0\xf0\xe2\x0f\x28\x9a\x08\xc0\xce\xa1\x86\x41\x4e\x80\x87\x32\x02\x2d\xbd\xfd\xfd\x97\xb8\x63\x59\x1c\xb8\x00\xc4\xe8\x31\x2a\x90\x34\x6c\x5c\x6d\x70\x46\x76\x15\xc7\x89\xe2\xcc\x78\x63\xfa\xb5\xa7", 50); syz_execute_func(/*text=*/0x20000080); break; case 14: syz_exit(/*status=*/0x1e8); break; case 15: syz_mmap(/*addr=*/0x20fff000, /*len=*/0x1000); break; case 16: syz_sleep_ms(/*ms=*/8); break; case 17: syz_test_fuzzer1(/*a=*/5, /*b=*/1, /*c=*/7); break; } } int main(void) { syz_mmap(/*addr=*/0x20000000, /*len=*/0x1000000); setup_fault(); use_temporary_dir(); do_sandbox_none(); return 0; } :326:3: error: call to undeclared function 'syscall'; ISO C99 and later do not support implicit function declarations [-Werror,-Wimplicit-function-declaration] syscall(SYS_test, /*a0=*/0x20000040ul, 0, 0, 0, 0, 0); ^ 1 error generated. compiler invocation: c++ [-o /tmp/syz-executor3331935076 -DGOOS_test=1 -DGOARCH_64=1 -DHOSTGOOS_openbsd=1 -x c - -m64 -lutil -O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wframe-larger-than=16384 -Wno-array-bounds -Wno-unused-but-set-variable -Wno-unused-command-line-argument -no-pie -fno-exceptions] --- FAIL: TestGenerate/test/64/5 (1.18s) csource_test.go:150: opts: {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Repro:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}} program: test$length32(&(0x7f0000000040)={[0x0, 0x100, 0xffffffff, 0x1, 0xffffff00, 0x5, 0x7fffffff, 0x3], {0x8}, &(0x7f0000000000)={0x8}}) (fail_nth: 1) csource7(0x2) (async) test$length6(&(0x7f0000000080)={[0x1f, 0x1, 0x2], 0x4}) (rerun: 4) test$length6(&(0x7f00000000c0)={[0xfff9, 0x101, 0x7ff, 0x3], 0x4}) test$recur0(&(0x7f0000000140)={&(0x7f0000000100)}) mutate2() test$recur0(&(0x7f0000000180)) foo$anyres(&(0x7f00000001c0), &(0x7f0000000200)=0x0, &(0x7f0000000240)) foo$anyres(&(0x7f0000000280)=0x0, &(0x7f00000002c0), &(0x7f0000000300)) foo$any0(&(0x7f0000000340)={0x5, 0x9, 0x0, 0x0, {0x1, 0x7, 0x1, 0x0, 0x0, 0x1}, [{@res32=r0, @i32=0x7ff, "732f4f620038617540685d8590b1e5e5188fa6e5c2510e8fcc247bcbf4d5f42608e85a40ec2e1509b7cfdca45bd88bc9308d05660c215debf7bfd0a28faaf9b1455f0556e2166d"}, {@res8=r1, @i8=0x4, "368e9fdf462195a0b2f6f38f1aa787b5640156280b4601e25d9117bd497db27b1f3bb7bc75e18d7fe799e7aaa6260c65769655d01a7928bb775076957c885223088d854d2a29ed9b6dc995b24e0f1fc8d75f4c5ad77b29c471e69c50b0142e8b58a45e1f03f21b9acf209c"}]}) syz_compare(&(0x7f0000000000)='[\x00', 0x2, &(0x7f0000000040)=@align0={0x0, 0xfffffffb, 0x1, 0x4, 0xa35}, 0x18) syz_compare_int$2(0x2, 0x6, 0x3) syz_errno(0x2a4c2702) syz_execute_func(&(0x7f0000000080)="d0f0e20f289a08c0cea186414e808732022dbdfdfd97b863591cb800c4e8312a90346c5c6d70467615c789e2cc7863fab5a7") syz_exit(0x1e8) syz_mmap(&(0x7f0000fff000/0x1000)=nil, 0x1000) syz_sleep_ms(0x8) syz_test_fuzzer1(0x5, 0x1, 0x7) csource_test.go:151: failed to build program: // autogenerated by syzkaller (https://github.com/google/syzkaller) #define _GNU_SOURCE #include #include #include #include #include #include #include #include #include #include #include #include #ifndef SYS_csource7 #define SYS_csource7 0 #endif #ifndef SYS_foo #define SYS_foo 0 #endif #ifndef SYS_mutate2 #define SYS_mutate2 0 #endif #ifndef SYS_test #define SYS_test 0 #endif static unsigned long long procid; static void sleep_ms(uint64_t ms) { usleep(ms * 1000); } static uint64_t current_time_ms(void) { struct timespec ts; if (clock_gettime(CLOCK_MONOTONIC, &ts)) exit(1); return (uint64_t)ts.tv_sec * 1000 + (uint64_t)ts.tv_nsec / 1000000; } static void use_temporary_dir(void) { char tmpdir_template[] = "./syzkaller.XXXXXX"; char* tmpdir = mkdtemp(tmpdir_template); if (!tmpdir) exit(1); if (chmod(tmpdir, 0777)) exit(1); if (chdir(tmpdir)) exit(1); } static int inject_fault(int nth) { return 0; } static void setup_fault() { } 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)))) static long syz_mmap(volatile long a0, volatile long a1) { return (long)mmap((void*)a0, a1, PROT_READ | PROT_WRITE, MAP_ANON | MAP_PRIVATE | MAP_FIXED, -1, 0); } static long syz_errno(volatile long v) { errno = v; return v == 0 ? 0 : -1; } static long syz_exit(volatile long status) { _exit(status); return 0; } static long syz_sleep_ms(volatile long ms) { sleep_ms(ms); return 0; } static long syz_compare(volatile long want, volatile long want_len, volatile long got, volatile long got_len) { if (want_len != got_len) { errno = EBADF; goto error; } if (memcmp((void*)want, (void*)got, want_len)) { errno = EINVAL; goto error; } return 0; error: return -1; } static long syz_compare_int(volatile long n, ...) { va_list args; va_start(args, n); long v0 = va_arg(args, long); long v1 = va_arg(args, long); long v2 = va_arg(args, long); long v3 = va_arg(args, long); va_end(args); if (n < 2 || n > 4) return errno = E2BIG, -1; if (n <= 2 && v2 != 0) return errno = EFAULT, -1; if (n <= 3 && v3 != 0) return errno = EFAULT, -1; if (v0 != v1) return errno = EINVAL, -1; if (n > 2 && v0 != v2) return errno = EINVAL, -1; if (n > 3 && v0 != v3) return errno = EINVAL, -1; return 0; } static void loop(); static int do_sandbox_none(void) { loop(); return 0; } static void fake_crash(const char* name) { exit(1); exit(1); } static long syz_test_fuzzer1(volatile long a, volatile long b, volatile long c) { if (a == 1 && b == 1 && c == 1) fake_crash("first bug"); if (a == 1 && b == 2 && c == 3) fake_crash("second bug"); 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 < 18; call++) { for (thread = 0; thread < (int)(sizeof(threads) / sizeof(threads[0])); thread++) { struct thread_t* th = &threads[thread]; if (!th->created) { th->created = 1; event_init(&th->ready); event_init(&th->done); event_set(&th->done); thread_start(thr, th); } if (!event_isset(&th->done)) continue; event_reset(&th->done); th->call = call; __atomic_fetch_add(&running, 1, __ATOMIC_RELAXED); event_set(&th->ready); if (call == 1) break; event_timedwait(&th->done, 50); break; } } for (i = 0; i < 100 && __atomic_load_n(&running, __ATOMIC_RELAXED); i++) sleep_ms(1); } static void execute_one(void); static void loop(void) { execute_one(); } uint64_t r[2] = {0x0, 0x0}; void execute_call(int call) { intptr_t res = 0; switch (call) { case 0: *(uint32_t*)0x20000040 = 0; *(uint32_t*)0x20000044 = 0x100; *(uint32_t*)0x20000048 = -1; *(uint32_t*)0x2000004c = 1; *(uint32_t*)0x20000050 = 0xffffff00; *(uint32_t*)0x20000054 = 5; *(uint32_t*)0x20000058 = 0x7fffffff; *(uint32_t*)0x2000005c = 3; *(uint32_t*)0x20000060 = 8; *(uint64_t*)0x20000068 = 0x20000000; *(uint32_t*)0x20000000 = 8; inject_fault(1); syscall(SYS_test, /*a0=*/0x20000040ul, 0, 0, 0, 0, 0); break; case 1: syscall(SYS_csource7, /*flag=BIT_1*/2ul); break; case 2: *(uint16_t*)0x20000080 = 0x1f; *(uint16_t*)0x20000082 = 1; *(uint16_t*)0x20000084 = 2; *(uint16_t*)0x20000086 = 0; *(uint16_t*)0x20000088 = 4; syscall(SYS_test, /*a0=*/0x20000080ul, 0, 0, 0, 0, 0); { int i; for(i = 0; i < 4; i++) { syscall(SYS_test, /*a0=*/0x20000080ul, 0, 0, 0, 0, 0); } } break; case 3: *(uint16_t*)0x200000c0 = 0xfff9; *(uint16_t*)0x200000c2 = 0x101; *(uint16_t*)0x200000c4 = 0x7ff; *(uint16_t*)0x200000c6 = 3; *(uint16_t*)0x200000c8 = 4; syscall(SYS_test, /*a0=*/0x200000c0ul, 0, 0, 0, 0, 0); break; case 4: *(uint64_t*)0x20000140 = 0x20000100; *(uint64_t*)0x20000100 = 0; syscall(SYS_test, /*a0=*/0x20000140ul, 0, 0, 0, 0, 0); break; case 5: syscall(SYS_mutate2); break; case 6: *(uint64_t*)0x20000180 = 0; syscall(SYS_test, /*a0=*/0x20000180ul, 0, 0, 0, 0, 0); break; case 7: res = syscall(SYS_foo, /*a0=*/0x200001c0ul, /*a1=*/0x20000200ul, /*a2=*/0x20000240ul); if (res != -1) r[0] = *(uint32_t*)0x20000200; break; case 8: res = syscall(SYS_foo, /*a0=*/0x20000280ul, /*a1=*/0x200002c0ul, /*a2=*/0x20000300ul); if (res != -1) r[1] = *(uint8_t*)0x20000280; break; case 9: *(uint8_t*)0x20000340 = 5; *(uint32_t*)0x20000344 = 9; *(uint16_t*)0x20000348 = htobe16(0); *(uint64_t*)0x20000350 = 0; STORE_BY_BITMASK(uint8_t, , 0x20000358, 1, 0, 2); STORE_BY_BITMASK(uint8_t, , 0x20000358, 7, 2, 3); STORE_BY_BITMASK(uint8_t, , 0x20000358, 1, 5, 1); STORE_BY_BITMASK(uint16_t, , 0x20000358, 0, 6, 1); STORE_BY_BITMASK(uint16_t, , 0x2000035a, 0, 0, 10); STORE_BY_BITMASK(uint16_t, , 0x2000035a, 1, 10, 3); *(uint32_t*)0x2000035c = r[0]; *(uint32_t*)0x20000364 = 0x7ff; memcpy((void*)0x20000368, "\x73\x2f\x4f\x62\x00\x38\x61\x75\x40\x68\x5d\x85\x90\xb1\xe5\xe5\x18\x8f\xa6\xe5\xc2\x51\x0e\x8f\xcc\x24\x7b\xcb\xf4\xd5\xf4\x26\x08\xe8\x5a\x40\xec\x2e\x15\x09\xb7\xcf\xdc\xa4\x5b\xd8\x8b\xc9\x30\x8d\x05\x66\x0c\x21\x5d\xeb\xf7\xbf\xd0\xa2\x8f\xaa\xf9\xb1\x45\x5f\x05\x56\xe2\x16\x6d", 71); *(uint8_t*)0x200003b0 = r[1]; *(uint8_t*)0x200003b8 = 4; memcpy((void*)0x200003b9, "\x36\x8e\x9f\xdf\x46\x21\x95\xa0\xb2\xf6\xf3\x8f\x1a\xa7\x87\xb5\x64\x01\x56\x28\x0b\x46\x01\xe2\x5d\x91\x17\xbd\x49\x7d\xb2\x7b\x1f\x3b\xb7\xbc\x75\xe1\x8d\x7f\xe7\x99\xe7\xaa\xa6\x26\x0c\x65\x76\x96\x55\xd0\x1a\x79\x28\xbb\x77\x50\x76\x95\x7c\x88\x52\x23\x08\x8d\x85\x4d\x2a\x29\xed\x9b\x6d\xc9\x95\xb2\x4e\x0f\x1f\xc8\xd7\x5f\x4c\x5a\xd7\x7b\x29\xc4\x71\xe6\x9c\x50\xb0\x14\x2e\x8b\x58\xa4\x5e\x1f\x03\xf2\x1b\x9a\xcf\x20\x9c", 107); syscall(SYS_foo, /*a=*/0x20000340ul, 0, 0); break; case 10: memcpy((void*)0x20000000, "[\000", 2); *(uint16_t*)0x20000040 = 0; *(uint32_t*)0x20000044 = 0xfffffffb; *(uint8_t*)0x20000048 = 1; *(uint16_t*)0x2000004a = 4; *(uint64_t*)0x20000050 = 0xa35; syz_compare(/*want=*/0x20000000, /*want_len=*/2, /*got=*/0x20000040, /*got_len=*/0x18); break; case 11: syz_compare_int(/*n=*/2, /*v0=*/6, /*v1=*/3, 0, 0); break; case 12: syz_errno(/*v=*/0x2a4c2702); break; case 13: memcpy((void*)0x20000080, "\xd0\xf0\xe2\x0f\x28\x9a\x08\xc0\xce\xa1\x86\x41\x4e\x80\x87\x32\x02\x2d\xbd\xfd\xfd\x97\xb8\x63\x59\x1c\xb8\x00\xc4\xe8\x31\x2a\x90\x34\x6c\x5c\x6d\x70\x46\x76\x15\xc7\x89\xe2\xcc\x78\x63\xfa\xb5\xa7", 50); syz_execute_func(/*text=*/0x20000080); break; case 14: syz_exit(/*status=*/0x1e8); break; case 15: syz_mmap(/*addr=*/0x20fff000, /*len=*/0x1000); break; case 16: syz_sleep_ms(/*ms=*/8); break; case 17: syz_test_fuzzer1(/*a=*/5, /*b=*/1, /*c=*/7); break; } } int main(void) { syz_mmap(/*addr=*/0x20000000, /*len=*/0x1000000); setup_fault(); for (procid = 0; procid < 4; procid++) { if (fork() == 0) { use_temporary_dir(); do_sandbox_none(); } } sleep(1000000); return 0; } :326:3: error: call to undeclared function 'syscall'; ISO C99 and later do not support implicit function declarations [-Werror,-Wimplicit-function-declaration] syscall(SYS_test, /*a0=*/0x20000040ul, 0, 0, 0, 0, 0); ^ 1 error generated. compiler invocation: c++ [-o /tmp/syz-executor4107141130 -DGOOS_test=1 -DGOARCH_64=1 -DHOSTGOOS_openbsd=1 -x c - -m64 -lutil -O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wframe-larger-than=16384 -Wno-array-bounds -Wno-unused-but-set-variable -Wno-unused-command-line-argument -no-pie -fno-exceptions] --- FAIL: TestGenerate/test/64/3 (2.18s) csource_test.go:150: opts: {Threaded:true Repeat:true RepeatTimes:10 Procs:0 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Repro:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}} program: test$length32(&(0x7f0000000040)={[0x0, 0x100, 0xffffffff, 0x1, 0xffffff00, 0x5, 0x7fffffff, 0x3], {0x8}, &(0x7f0000000000)={0x8}}) (fail_nth: 1) csource7(0x2) (async) test$length6(&(0x7f0000000080)={[0x1f, 0x1, 0x2], 0x4}) (rerun: 4) test$length6(&(0x7f00000000c0)={[0xfff9, 0x101, 0x7ff, 0x3], 0x4}) test$recur0(&(0x7f0000000140)={&(0x7f0000000100)}) mutate2() test$recur0(&(0x7f0000000180)) foo$anyres(&(0x7f00000001c0), &(0x7f0000000200)=0x0, &(0x7f0000000240)) foo$anyres(&(0x7f0000000280)=0x0, &(0x7f00000002c0), &(0x7f0000000300)) foo$any0(&(0x7f0000000340)={0x5, 0x9, 0x0, 0x0, {0x1, 0x7, 0x1, 0x0, 0x0, 0x1}, [{@res32=r0, @i32=0x7ff, "732f4f620038617540685d8590b1e5e5188fa6e5c2510e8fcc247bcbf4d5f42608e85a40ec2e1509b7cfdca45bd88bc9308d05660c215debf7bfd0a28faaf9b1455f0556e2166d"}, {@res8=r1, @i8=0x4, "368e9fdf462195a0b2f6f38f1aa787b5640156280b4601e25d9117bd497db27b1f3bb7bc75e18d7fe799e7aaa6260c65769655d01a7928bb775076957c885223088d854d2a29ed9b6dc995b24e0f1fc8d75f4c5ad77b29c471e69c50b0142e8b58a45e1f03f21b9acf209c"}]}) syz_compare(&(0x7f0000000000)='[\x00', 0x2, &(0x7f0000000040)=@align0={0x0, 0xfffffffb, 0x1, 0x4, 0xa35}, 0x18) syz_compare_int$2(0x2, 0x6, 0x3) syz_errno(0x2a4c2702) syz_execute_func(&(0x7f0000000080)="d0f0e20f289a08c0cea186414e808732022dbdfdfd97b863591cb800c4e8312a90346c5c6d70467615c789e2cc7863fab5a7") syz_exit(0x1e8) syz_mmap(&(0x7f0000fff000/0x1000)=nil, 0x1000) syz_sleep_ms(0x8) syz_test_fuzzer1(0x5, 0x1, 0x7) csource_test.go:151: failed to build program: // autogenerated by syzkaller (https://github.com/google/syzkaller) #define _GNU_SOURCE #include #include #include #include #include #include #include #include #include #include #include #include #ifndef SYS_csource7 #define SYS_csource7 0 #endif #ifndef SYS_foo #define SYS_foo 0 #endif #ifndef SYS_mutate2 #define SYS_mutate2 0 #endif #ifndef SYS_test #define SYS_test 0 #endif 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 int inject_fault(int nth) { return 0; } static void setup_fault() { } 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)))) static long syz_mmap(volatile long a0, volatile long a1) { return (long)mmap((void*)a0, a1, PROT_READ | PROT_WRITE, MAP_ANON | MAP_PRIVATE | MAP_FIXED, -1, 0); } static long syz_errno(volatile long v) { errno = v; return v == 0 ? 0 : -1; } static long syz_exit(volatile long status) { _exit(status); return 0; } static long syz_sleep_ms(volatile long ms) { sleep_ms(ms); return 0; } static long syz_compare(volatile long want, volatile long want_len, volatile long got, volatile long got_len) { if (want_len != got_len) { errno = EBADF; goto error; } if (memcmp((void*)want, (void*)got, want_len)) { errno = EINVAL; goto error; } return 0; error: return -1; } static long syz_compare_int(volatile long n, ...) { va_list args; va_start(args, n); long v0 = va_arg(args, long); long v1 = va_arg(args, long); long v2 = va_arg(args, long); long v3 = va_arg(args, long); va_end(args); if (n < 2 || n > 4) return errno = E2BIG, -1; if (n <= 2 && v2 != 0) return errno = EFAULT, -1; if (n <= 3 && v3 != 0) return errno = EFAULT, -1; if (v0 != v1) return errno = EINVAL, -1; if (n > 2 && v0 != v2) return errno = EINVAL, -1; if (n > 3 && v0 != v3) return errno = EINVAL, -1; return 0; } static void loop(); static int do_sandbox_none(void) { loop(); return 0; } static void fake_crash(const char* name) { exit(1); exit(1); } static long syz_test_fuzzer1(volatile long a, volatile long b, volatile long c) { if (a == 1 && b == 1 && c == 1) fake_crash("first bug"); if (a == 1 && b == 2 && c == 3) fake_crash("second bug"); 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 < 18; call++) { for (thread = 0; thread < (int)(sizeof(threads) / sizeof(threads[0])); thread++) { struct thread_t* th = &threads[thread]; if (!th->created) { th->created = 1; event_init(&th->ready); event_init(&th->done); event_set(&th->done); thread_start(thr, th); } if (!event_isset(&th->done)) continue; event_reset(&th->done); th->call = call; __atomic_fetch_add(&running, 1, __ATOMIC_RELAXED); event_set(&th->ready); if (call == 1) break; event_timedwait(&th->done, 50); break; } } for (i = 0; i < 100 && __atomic_load_n(&running, __ATOMIC_RELAXED); i++) sleep_ms(1); } static void execute_one(void); static void loop(void) { execute_one(); } uint64_t r[2] = {0x0, 0x0}; void execute_call(int call) { intptr_t res = 0; switch (call) { case 0: *(uint32_t*)0x20000040 = 0; *(uint32_t*)0x20000044 = 0x100; *(uint32_t*)0x20000048 = -1; *(uint32_t*)0x2000004c = 1; *(uint32_t*)0x20000050 = 0xffffff00; *(uint32_t*)0x20000054 = 5; *(uint32_t*)0x20000058 = 0x7fffffff; *(uint32_t*)0x2000005c = 3; *(uint32_t*)0x20000060 = 8; *(uint64_t*)0x20000068 = 0x20000000; *(uint32_t*)0x20000000 = 8; inject_fault(1); syscall(SYS_test, /*a0=*/0x20000040ul, 0, 0, 0, 0, 0); break; case 1: syscall(SYS_csource7, /*flag=BIT_1*/2ul); break; case 2: *(uint16_t*)0x20000080 = 0x1f; *(uint16_t*)0x20000082 = 1; *(uint16_t*)0x20000084 = 2; *(uint16_t*)0x20000086 = 0; *(uint16_t*)0x20000088 = 4; syscall(SYS_test, /*a0=*/0x20000080ul, 0, 0, 0, 0, 0); { int i; for(i = 0; i < 4; i++) { syscall(SYS_test, /*a0=*/0x20000080ul, 0, 0, 0, 0, 0); } } break; case 3: *(uint16_t*)0x200000c0 = 0xfff9; *(uint16_t*)0x200000c2 = 0x101; *(uint16_t*)0x200000c4 = 0x7ff; *(uint16_t*)0x200000c6 = 3; *(uint16_t*)0x200000c8 = 4; syscall(SYS_test, /*a0=*/0x200000c0ul, 0, 0, 0, 0, 0); break; case 4: *(uint64_t*)0x20000140 = 0x20000100; *(uint64_t*)0x20000100 = 0; syscall(SYS_test, /*a0=*/0x20000140ul, 0, 0, 0, 0, 0); break; case 5: syscall(SYS_mutate2); break; case 6: *(uint64_t*)0x20000180 = 0; syscall(SYS_test, /*a0=*/0x20000180ul, 0, 0, 0, 0, 0); break; case 7: res = syscall(SYS_foo, /*a0=*/0x200001c0ul, /*a1=*/0x20000200ul, /*a2=*/0x20000240ul); if (res != -1) r[0] = *(uint32_t*)0x20000200; break; case 8: res = syscall(SYS_foo, /*a0=*/0x20000280ul, /*a1=*/0x200002c0ul, /*a2=*/0x20000300ul); if (res != -1) r[1] = *(uint8_t*)0x20000280; break; case 9: *(uint8_t*)0x20000340 = 5; *(uint32_t*)0x20000344 = 9; *(uint16_t*)0x20000348 = htobe16(0); *(uint64_t*)0x20000350 = 0; STORE_BY_BITMASK(uint8_t, , 0x20000358, 1, 0, 2); STORE_BY_BITMASK(uint8_t, , 0x20000358, 7, 2, 3); STORE_BY_BITMASK(uint8_t, , 0x20000358, 1, 5, 1); STORE_BY_BITMASK(uint16_t, , 0x20000358, 0, 6, 1); STORE_BY_BITMASK(uint16_t, , 0x2000035a, 0, 0, 10); STORE_BY_BITMASK(uint16_t, , 0x2000035a, 1, 10, 3); *(uint32_t*)0x2000035c = r[0]; *(uint32_t*)0x20000364 = 0x7ff; memcpy((void*)0x20000368, "\x73\x2f\x4f\x62\x00\x38\x61\x75\x40\x68\x5d\x85\x90\xb1\xe5\xe5\x18\x8f\xa6\xe5\xc2\x51\x0e\x8f\xcc\x24\x7b\xcb\xf4\xd5\xf4\x26\x08\xe8\x5a\x40\xec\x2e\x15\x09\xb7\xcf\xdc\xa4\x5b\xd8\x8b\xc9\x30\x8d\x05\x66\x0c\x21\x5d\xeb\xf7\xbf\xd0\xa2\x8f\xaa\xf9\xb1\x45\x5f\x05\x56\xe2\x16\x6d", 71); *(uint8_t*)0x200003b0 = r[1]; *(uint8_t*)0x200003b8 = 4; memcpy((void*)0x200003b9, "\x36\x8e\x9f\xdf\x46\x21\x95\xa0\xb2\xf6\xf3\x8f\x1a\xa7\x87\xb5\x64\x01\x56\x28\x0b\x46\x01\xe2\x5d\x91\x17\xbd\x49\x7d\xb2\x7b\x1f\x3b\xb7\xbc\x75\xe1\x8d\x7f\xe7\x99\xe7\xaa\xa6\x26\x0c\x65\x76\x96\x55\xd0\x1a\x79\x28\xbb\x77\x50\x76\x95\x7c\x88\x52\x23\x08\x8d\x85\x4d\x2a\x29\xed\x9b\x6d\xc9\x95\xb2\x4e\x0f\x1f\xc8\xd7\x5f\x4c\x5a\xd7\x7b\x29\xc4\x71\xe6\x9c\x50\xb0\x14\x2e\x8b\x58\xa4\x5e\x1f\x03\xf2\x1b\x9a\xcf\x20\x9c", 107); syscall(SYS_foo, /*a=*/0x20000340ul, 0, 0); break; case 10: memcpy((void*)0x20000000, "[\000", 2); *(uint16_t*)0x20000040 = 0; *(uint32_t*)0x20000044 = 0xfffffffb; *(uint8_t*)0x20000048 = 1; *(uint16_t*)0x2000004a = 4; *(uint64_t*)0x20000050 = 0xa35; syz_compare(/*want=*/0x20000000, /*want_len=*/2, /*got=*/0x20000040, /*got_len=*/0x18); break; case 11: syz_compare_int(/*n=*/2, /*v0=*/6, /*v1=*/3, 0, 0); break; case 12: syz_errno(/*v=*/0x2a4c2702); break; case 13: memcpy((void*)0x20000080, "\xd0\xf0\xe2\x0f\x28\x9a\x08\xc0\xce\xa1\x86\x41\x4e\x80\x87\x32\x02\x2d\xbd\xfd\xfd\x97\xb8\x63\x59\x1c\xb8\x00\xc4\xe8\x31\x2a\x90\x34\x6c\x5c\x6d\x70\x46\x76\x15\xc7\x89\xe2\xcc\x78\x63\xfa\xb5\xa7", 50); syz_execute_func(/*text=*/0x20000080); break; case 14: syz_exit(/*status=*/0x1e8); break; case 15: syz_mmap(/*addr=*/0x20fff000, /*len=*/0x1000); break; case 16: syz_sleep_ms(/*ms=*/8); break; case 17: syz_test_fuzzer1(/*a=*/5, /*b=*/1, /*c=*/7); break; } } int main(void) { syz_mmap(/*addr=*/0x20000000, /*len=*/0x1000000); setup_fault(); use_temporary_dir(); do_sandbox_none(); return 0; } :324:3: error: call to undeclared function 'syscall'; ISO C99 and later do not support implicit function declarations [-Werror,-Wimplicit-function-declaration] syscall(SYS_test, /*a0=*/0x20000040ul, 0, 0, 0, 0, 0); ^ 1 error generated. compiler invocation: c++ [-o /tmp/syz-executor1648260660 -DGOOS_test=1 -DGOARCH_64=1 -DHOSTGOOS_openbsd=1 -x c - -m64 -lutil -O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wframe-larger-than=16384 -Wno-array-bounds -Wno-unused-but-set-variable -Wno-unused-command-line-argument -no-pie -fno-exceptions] --- FAIL: TestGenerate/test/64/4 (1.69s) csource_test.go:150: opts: {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Repro:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}} program: test$length32(&(0x7f0000000040)={[0x0, 0x100, 0xffffffff, 0x1, 0xffffff00, 0x5, 0x7fffffff, 0x3], {0x8}, &(0x7f0000000000)={0x8}}) (fail_nth: 1) csource7(0x2) (async) test$length6(&(0x7f0000000080)={[0x1f, 0x1, 0x2], 0x4}) (rerun: 4) test$length6(&(0x7f00000000c0)={[0xfff9, 0x101, 0x7ff, 0x3], 0x4}) test$recur0(&(0x7f0000000140)={&(0x7f0000000100)}) mutate2() test$recur0(&(0x7f0000000180)) foo$anyres(&(0x7f00000001c0), &(0x7f0000000200)=0x0, &(0x7f0000000240)) foo$anyres(&(0x7f0000000280)=0x0, &(0x7f00000002c0), &(0x7f0000000300)) foo$any0(&(0x7f0000000340)={0x5, 0x9, 0x0, 0x0, {0x1, 0x7, 0x1, 0x0, 0x0, 0x1}, [{@res32=r0, @i32=0x7ff, "732f4f620038617540685d8590b1e5e5188fa6e5c2510e8fcc247bcbf4d5f42608e85a40ec2e1509b7cfdca45bd88bc9308d05660c215debf7bfd0a28faaf9b1455f0556e2166d"}, {@res8=r1, @i8=0x4, "368e9fdf462195a0b2f6f38f1aa787b5640156280b4601e25d9117bd497db27b1f3bb7bc75e18d7fe799e7aaa6260c65769655d01a7928bb775076957c885223088d854d2a29ed9b6dc995b24e0f1fc8d75f4c5ad77b29c471e69c50b0142e8b58a45e1f03f21b9acf209c"}]}) syz_compare(&(0x7f0000000000)='[\x00', 0x2, &(0x7f0000000040)=@align0={0x0, 0xfffffffb, 0x1, 0x4, 0xa35}, 0x18) syz_compare_int$2(0x2, 0x6, 0x3) syz_errno(0x2a4c2702) syz_execute_func(&(0x7f0000000080)="d0f0e20f289a08c0cea186414e808732022dbdfdfd97b863591cb800c4e8312a90346c5c6d70467615c789e2cc7863fab5a7") syz_exit(0x1e8) syz_mmap(&(0x7f0000fff000/0x1000)=nil, 0x1000) syz_sleep_ms(0x8) syz_test_fuzzer1(0x5, 0x1, 0x7) csource_test.go:151: failed to build program: // autogenerated by syzkaller (https://github.com/google/syzkaller) #define _GNU_SOURCE #include #include #include #include #include #include #include #include #include #include #include #include #ifndef SYS_csource7 #define SYS_csource7 0 #endif #ifndef SYS_foo #define SYS_foo 0 #endif #ifndef SYS_mutate2 #define SYS_mutate2 0 #endif #ifndef SYS_test #define SYS_test 0 #endif 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 int inject_fault(int nth) { return 0; } static void setup_fault() { } 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)))) static long syz_mmap(volatile long a0, volatile long a1) { return (long)mmap((void*)a0, a1, PROT_READ | PROT_WRITE, MAP_ANON | MAP_PRIVATE | MAP_FIXED, -1, 0); } static long syz_errno(volatile long v) { errno = v; return v == 0 ? 0 : -1; } static long syz_exit(volatile long status) { _exit(status); return 0; } static long syz_sleep_ms(volatile long ms) { sleep_ms(ms); return 0; } static long syz_compare(volatile long want, volatile long want_len, volatile long got, volatile long got_len) { if (want_len != got_len) { errno = EBADF; goto error; } if (memcmp((void*)want, (void*)got, want_len)) { errno = EINVAL; goto error; } return 0; error: return -1; } static long syz_compare_int(volatile long n, ...) { va_list args; va_start(args, n); long v0 = va_arg(args, long); long v1 = va_arg(args, long); long v2 = va_arg(args, long); long v3 = va_arg(args, long); va_end(args); if (n < 2 || n > 4) return errno = E2BIG, -1; if (n <= 2 && v2 != 0) return errno = EFAULT, -1; if (n <= 3 && v3 != 0) return errno = EFAULT, -1; if (v0 != v1) return errno = EINVAL, -1; if (n > 2 && v0 != v2) return errno = EINVAL, -1; if (n > 3 && v0 != v3) return errno = EINVAL, -1; return 0; } static void loop(); static int do_sandbox_none(void) { loop(); return 0; } static void fake_crash(const char* name) { exit(1); exit(1); } static long syz_test_fuzzer1(volatile long a, volatile long b, volatile long c) { if (a == 1 && b == 1 && c == 1) fake_crash("first bug"); if (a == 1 && b == 2 && c == 3) fake_crash("second bug"); 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 < 18; call++) { for (thread = 0; thread < (int)(sizeof(threads) / sizeof(threads[0])); thread++) { struct thread_t* th = &threads[thread]; if (!th->created) { th->created = 1; event_init(&th->ready); event_init(&th->done); event_set(&th->done); thread_start(thr, th); } if (!event_isset(&th->done)) continue; event_reset(&th->done); th->call = call; __atomic_fetch_add(&running, 1, __ATOMIC_RELAXED); event_set(&th->ready); if (call == 1) break; event_timedwait(&th->done, 50); break; } } for (i = 0; i < 100 && __atomic_load_n(&running, __ATOMIC_RELAXED); i++) sleep_ms(1); } static void execute_one(void); static void loop(void) { execute_one(); } uint64_t r[2] = {0x0, 0x0}; void execute_call(int call) { intptr_t res = 0; switch (call) { case 0: *(uint32_t*)0x20000040 = 0; *(uint32_t*)0x20000044 = 0x100; *(uint32_t*)0x20000048 = -1; *(uint32_t*)0x2000004c = 1; *(uint32_t*)0x20000050 = 0xffffff00; *(uint32_t*)0x20000054 = 5; *(uint32_t*)0x20000058 = 0x7fffffff; *(uint32_t*)0x2000005c = 3; *(uint32_t*)0x20000060 = 8; *(uint64_t*)0x20000068 = 0x20000000; *(uint32_t*)0x20000000 = 8; inject_fault(1); syscall(SYS_test, /*a0=*/0x20000040ul, 0, 0, 0, 0, 0); break; case 1: syscall(SYS_csource7, /*flag=BIT_1*/2ul); break; case 2: *(uint16_t*)0x20000080 = 0x1f; *(uint16_t*)0x20000082 = 1; *(uint16_t*)0x20000084 = 2; *(uint16_t*)0x20000086 = 0; *(uint16_t*)0x20000088 = 4; syscall(SYS_test, /*a0=*/0x20000080ul, 0, 0, 0, 0, 0); { int i; for(i = 0; i < 4; i++) { syscall(SYS_test, /*a0=*/0x20000080ul, 0, 0, 0, 0, 0); } } break; case 3: *(uint16_t*)0x200000c0 = 0xfff9; *(uint16_t*)0x200000c2 = 0x101; *(uint16_t*)0x200000c4 = 0x7ff; *(uint16_t*)0x200000c6 = 3; *(uint16_t*)0x200000c8 = 4; syscall(SYS_test, /*a0=*/0x200000c0ul, 0, 0, 0, 0, 0); break; case 4: *(uint64_t*)0x20000140 = 0x20000100; *(uint64_t*)0x20000100 = 0; syscall(SYS_test, /*a0=*/0x20000140ul, 0, 0, 0, 0, 0); break; case 5: syscall(SYS_mutate2); break; case 6: *(uint64_t*)0x20000180 = 0; syscall(SYS_test, /*a0=*/0x20000180ul, 0, 0, 0, 0, 0); break; case 7: res = syscall(SYS_foo, /*a0=*/0x200001c0ul, /*a1=*/0x20000200ul, /*a2=*/0x20000240ul); if (res != -1) r[0] = *(uint32_t*)0x20000200; break; case 8: res = syscall(SYS_foo, /*a0=*/0x20000280ul, /*a1=*/0x200002c0ul, /*a2=*/0x20000300ul); if (res != -1) r[1] = *(uint8_t*)0x20000280; break; case 9: *(uint8_t*)0x20000340 = 5; *(uint32_t*)0x20000344 = 9; *(uint16_t*)0x20000348 = htobe16(0); *(uint64_t*)0x20000350 = 0; STORE_BY_BITMASK(uint8_t, , 0x20000358, 1, 0, 2); STORE_BY_BITMASK(uint8_t, , 0x20000358, 7, 2, 3); STORE_BY_BITMASK(uint8_t, , 0x20000358, 1, 5, 1); STORE_BY_BITMASK(uint16_t, , 0x20000358, 0, 6, 1); STORE_BY_BITMASK(uint16_t, , 0x2000035a, 0, 0, 10); STORE_BY_BITMASK(uint16_t, , 0x2000035a, 1, 10, 3); *(uint32_t*)0x2000035c = r[0]; *(uint32_t*)0x20000364 = 0x7ff; memcpy((void*)0x20000368, "\x73\x2f\x4f\x62\x00\x38\x61\x75\x40\x68\x5d\x85\x90\xb1\xe5\xe5\x18\x8f\xa6\xe5\xc2\x51\x0e\x8f\xcc\x24\x7b\xcb\xf4\xd5\xf4\x26\x08\xe8\x5a\x40\xec\x2e\x15\x09\xb7\xcf\xdc\xa4\x5b\xd8\x8b\xc9\x30\x8d\x05\x66\x0c\x21\x5d\xeb\xf7\xbf\xd0\xa2\x8f\xaa\xf9\xb1\x45\x5f\x05\x56\xe2\x16\x6d", 71); *(uint8_t*)0x200003b0 = r[1]; *(uint8_t*)0x200003b8 = 4; memcpy((void*)0x200003b9, "\x36\x8e\x9f\xdf\x46\x21\x95\xa0\xb2\xf6\xf3\x8f\x1a\xa7\x87\xb5\x64\x01\x56\x28\x0b\x46\x01\xe2\x5d\x91\x17\xbd\x49\x7d\xb2\x7b\x1f\x3b\xb7\xbc\x75\xe1\x8d\x7f\xe7\x99\xe7\xaa\xa6\x26\x0c\x65\x76\x96\x55\xd0\x1a\x79\x28\xbb\x77\x50\x76\x95\x7c\x88\x52\x23\x08\x8d\x85\x4d\x2a\x29\xed\x9b\x6d\xc9\x95\xb2\x4e\x0f\x1f\xc8\xd7\x5f\x4c\x5a\xd7\x7b\x29\xc4\x71\xe6\x9c\x50\xb0\x14\x2e\x8b\x58\xa4\x5e\x1f\x03\xf2\x1b\x9a\xcf\x20\x9c", 107); syscall(SYS_foo, /*a=*/0x20000340ul, 0, 0); break; case 10: memcpy((void*)0x20000000, "[\000", 2); *(uint16_t*)0x20000040 = 0; *(uint32_t*)0x20000044 = 0xfffffffb; *(uint8_t*)0x20000048 = 1; *(uint16_t*)0x2000004a = 4; *(uint64_t*)0x20000050 = 0xa35; syz_compare(/*want=*/0x20000000, /*want_len=*/2, /*got=*/0x20000040, /*got_len=*/0x18); break; case 11: syz_compare_int(/*n=*/2, /*v0=*/6, /*v1=*/3, 0, 0); break; case 12: syz_errno(/*v=*/0x2a4c2702); break; case 13: memcpy((void*)0x20000080, "\xd0\xf0\xe2\x0f\x28\x9a\x08\xc0\xce\xa1\x86\x41\x4e\x80\x87\x32\x02\x2d\xbd\xfd\xfd\x97\xb8\x63\x59\x1c\xb8\x00\xc4\xe8\x31\x2a\x90\x34\x6c\x5c\x6d\x70\x46\x76\x15\xc7\x89\xe2\xcc\x78\x63\xfa\xb5\xa7", 50); syz_execute_func(/*text=*/0x20000080); break; case 14: syz_exit(/*status=*/0x1e8); break; case 15: syz_mmap(/*addr=*/0x20fff000, /*len=*/0x1000); break; case 16: syz_sleep_ms(/*ms=*/8); break; case 17: syz_test_fuzzer1(/*a=*/5, /*b=*/1, /*c=*/7); break; } } int main(void) { syz_mmap(/*addr=*/0x20000000, /*len=*/0x1000000); setup_fault(); use_temporary_dir(); do_sandbox_none(); return 0; } :324:3: error: call to undeclared function 'syscall'; ISO C99 and later do not support implicit function declarations [-Werror,-Wimplicit-function-declaration] syscall(SYS_test, /*a0=*/0x20000040ul, 0, 0, 0, 0, 0); ^ 1 error generated. compiler invocation: c++ [-o /tmp/syz-executor1428991810 -DGOOS_test=1 -DGOARCH_64=1 -DHOSTGOOS_openbsd=1 -x c - -m64 -lutil -O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wframe-larger-than=16384 -Wno-array-bounds -Wno-unused-but-set-variable -Wno-unused-command-line-argument -no-pie -fno-exceptions] --- FAIL: TestGenerate/test/64/2 (1.17s) csource_test.go:148: --- FAIL: TestGenerate/test/64/14 (0.94s) csource_test.go:148: --- FAIL: TestGenerate/test/64/1 (1.09s) csource_test.go:148: --- FAIL: TestGenerate/test/64/13 (1.80s) csource_test.go:148: FAIL FAIL github.com/google/syzkaller/pkg/csource 28.636s ok github.com/google/syzkaller/pkg/db (cached) ok github.com/google/syzkaller/pkg/email (cached) ok github.com/google/syzkaller/pkg/email/lore (cached) ok github.com/google/syzkaller/pkg/fuzzer (cached) ok github.com/google/syzkaller/pkg/gce (cached) ok github.com/google/syzkaller/pkg/host (cached) ok github.com/google/syzkaller/pkg/html (cached) ok github.com/google/syzkaller/pkg/ifuzz (cached) ok github.com/google/syzkaller/pkg/image (cached) ok github.com/google/syzkaller/pkg/instance (cached) ok github.com/google/syzkaller/pkg/ipc (cached) ok github.com/google/syzkaller/pkg/kconfig (cached) ok github.com/google/syzkaller/pkg/kd (cached) ok github.com/google/syzkaller/pkg/log (cached) ok github.com/google/syzkaller/pkg/mgrconfig (cached) ok github.com/google/syzkaller/pkg/osutil (cached) ok github.com/google/syzkaller/pkg/report (cached) ok github.com/google/syzkaller/pkg/repro (cached) ? github.com/google/syzkaller/syz-runner [no test files] ? 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-build [no test files] ? github.com/google/syzkaller/tools/syz-check [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-crush [no test files] ? github.com/google/syzkaller/tools/syz-cover [no test files] ? github.com/google/syzkaller/tools/syz-expand [no test files] ? github.com/google/syzkaller/tools/syz-fillreports [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-lore [no test files] ? 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-prog2c [no test files] ? github.com/google/syzkaller/tools/syz-mutate [no test files] ? github.com/google/syzkaller/tools/syz-repro [no test files] ? github.com/google/syzkaller/tools/syz-query-subsystems [no test files] ? github.com/google/syzkaller/tools/syz-reporter [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] ? 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] ? github.com/google/syzkaller/vm/adb [no test files] ? github.com/google/syzkaller/vm/cuttlefish [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] ? github.com/google/syzkaller/vm/kvm [no test files] ? github.com/google/syzkaller/vm/odroid [no test files] ? github.com/google/syzkaller/vm/proxyapp/mocks [no test files] ? github.com/google/syzkaller/vm/proxyapp/proxyrpc [no test files] ? github.com/google/syzkaller/vm/qemu [no test files] ? github.com/google/syzkaller/vm/starnix [no test files] ? github.com/google/syzkaller/vm/vmm [no test files] ? github.com/google/syzkaller/vm/vmware [no test files] ok github.com/google/syzkaller/pkg/runtest 53.675s ok github.com/google/syzkaller/pkg/serializer (cached) ok github.com/google/syzkaller/pkg/signal (cached) ok github.com/google/syzkaller/pkg/stats (cached) ok github.com/google/syzkaller/pkg/subsystem (cached) ok github.com/google/syzkaller/pkg/subsystem/linux (cached) ok github.com/google/syzkaller/pkg/subsystem/lists (cached) 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) ok github.com/google/syzkaller/sys/linux (cached) ok github.com/google/syzkaller/sys/netbsd (cached) ok github.com/google/syzkaller/sys/openbsd (cached) ok github.com/google/syzkaller/syz-ci (cached) 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 (cached) ok github.com/google/syzkaller/syz-verifier (cached) ok github.com/google/syzkaller/tools/syz-kconf (cached) ok github.com/google/syzkaller/tools/syz-linter (cached) ok github.com/google/syzkaller/tools/syz-testbed (cached) ok github.com/google/syzkaller/tools/syz-trace2syz/parser (cached) ok github.com/google/syzkaller/tools/syz-trace2syz/proggen (cached) ok github.com/google/syzkaller/vm (cached) ok github.com/google/syzkaller/vm/isolated (cached) ok github.com/google/syzkaller/vm/proxyapp (cached) ok github.com/google/syzkaller/vm/vmimpl (cached) FAIL