ok github.com/google/syzkaller/dashboard/app (cached) ? github.com/google/syzkaller/dashboard/dashapi [no test files] ok github.com/google/syzkaller/executor 1.279s ok github.com/google/syzkaller/pkg/ast 1.765s ok github.com/google/syzkaller/pkg/bisect 46.301s ok github.com/google/syzkaller/pkg/build 0.136s ? github.com/google/syzkaller/pkg/cmdprof [no test files] ok github.com/google/syzkaller/pkg/compiler 7.998s ok github.com/google/syzkaller/pkg/config (cached) ok github.com/google/syzkaller/pkg/cover 0.054s ? github.com/google/syzkaller/pkg/cover/backend [no test files] --- FAIL: TestGenerate (4.58s) --- FAIL: TestGenerate/freebsd/386 (1.41s) csource_test.go:67: seed=1608886341964183563 --- FAIL: TestGenerate/freebsd/386/0 (0.60s) csource_test.go:123: opts: {Threaded:false Collide:false Repeat:true RepeatTimes:0 Procs:0 Sandbox:none Fault:false FaultCall:0 FaultNth:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false USB:false VhciInjection:false Wifi:false Sysctl:false UseTmpDir:true HandleSegv:false Repro:false Trace:false} program: r0 = kqueue() ioctl$DIOCADDSTATE(0xffffffffffffffff, 0xc0f24425, &(0x7f0000000000)="58c88fefee") ioctl$DIOCGETQSTATSV0(0xffffffffffffff9c, 0xc0184432, &(0x7f0000000040)="0b75fb7f86b8719d9ca1c03bb46e48f08ab650085ac062ede913fcadbbaf4f90f5c07bd0ca1a0719602ed77b7293a5655cf71dd4c3a794648a20c24c28a35d110ef08f0e3411fc5806a772c95a7f250736950ab3") setsockopt$inet_sctp_SCTP_AUTH_KEY(0xffffffffffffffff, 0x84, 0x13, &(0x7f00000000c0)={0x0, 0x4, 0xad, "59f3c2206637b3c44c65ff50eb447c6800e7ee19a68b04233087fd6c6081c9d71aed1a5370308c7aa0178e016ef4940fdda9e2757b5ce9c083b5544c9f49f0c6eadba9bafb9186942a031c4fcccf4d1f657949a52c4b1bfd20a629da67dec2a0785badddd7e08753c271cb0265b892e636f9a68a7b3319576c7db0d85a842f8522b0c9b885751fe82a5d5d33c1442b6fd1de1b09833b74f22d41d48def6aa5659e2c7d909fea2f8025a4553cd9"}, 0xb5) r1 = fcntl$dupfd(r0, 0x0, 0xffffffffffffffff) getsockopt$inet_sctp_SCTP_GET_ASSOC_ID_LIST(r1, 0x84, 0x105, &(0x7f0000000180)={0x7, [0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0]}, &(0x7f00000001c0)=0x20) getsockopt$inet_sctp_SCTP_RECVRCVINFO(r1, 0x84, 0x1f, &(0x7f0000000200), &(0x7f0000000240)=0x4) r2 = socket$inet(0x2, 0x3, 0x1) copy_file_range(r1, &(0x7f0000000280)=0x7fff, r2, &(0x7f00000002c0)=0x2, 0x7, 0x0) setsockopt$inet_sctp_SCTP_HMAC_IDENT(r2, 0x84, 0x14, &(0x7f0000000300)={0x7, [0x8, 0x1, 0x0, 0x1000, 0x8, 0x4, 0x3]}, 0x12) syz_emit_ethernet(0x33, &(0x7f0000000000)={@broadcast, @local, [], {@arp={0x806, @generic={0x6, 0x8035, 0x6, 0x1, 0x3, @local, "1d", @random="713c34acc0ec", "8bf544bbf8ba5b8078207d73f8c034ec"}}}}) syz_execute_func(&(0x7f0000000040)="f30f5811c4e1a968b4e9b8cf00000f71e6ff8871f9660f383dfff2dcf62e2fd2ae960000002e0f15eb0f01d0") syz_extract_tcp_res(&(0x7f0000000080), 0xffffffff, 0x1) csource_test.go:124: 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 #include #include #include #include #include #include static void kill_and_wait(int pid, int* status) { kill(pid, SIGKILL); while (waitpid(-1, status, 0) != pid) { } } static void sleep_ms(uint64_t ms) { usleep(ms * 1000); } static uint64_t current_time_ms(void) { struct timespec ts; if (clock_gettime(CLOCK_MONOTONIC, &ts)) exit(1); return (uint64_t)ts.tv_sec * 1000 + (uint64_t)ts.tv_nsec / 1000000; } static void use_temporary_dir(void) { char tmpdir_template[] = "./syzkaller.XXXXXX"; char* tmpdir = mkdtemp(tmpdir_template); if (!tmpdir) exit(1); if (chmod(tmpdir, 0777)) exit(1); if (chdir(tmpdir)) exit(1); } static void __attribute__((noinline)) remove_dir(const char* dir) { DIR* dp = opendir(dir); if (dp == NULL) { if (errno == EACCES) { if (rmdir(dir)) exit(1); return; } exit(1); } struct dirent* ep = 0; while ((ep = readdir(dp))) { if (strcmp(ep->d_name, ".") == 0 || strcmp(ep->d_name, "..") == 0) continue; char filename[FILENAME_MAX]; snprintf(filename, sizeof(filename), "%s/%s", dir, ep->d_name); struct stat st; if (lstat(filename, &st)) exit(1); if (S_ISDIR(st.st_mode)) { remove_dir(filename); continue; } if (unlink(filename)) exit(1); } closedir(dp); if (rmdir(dir)) exit(1); } static void sandbox_common() { if (setsid() == -1) exit(1); struct rlimit rlim; rlim.rlim_cur = rlim.rlim_max = 128 << 20; setrlimit(RLIMIT_AS, &rlim); rlim.rlim_cur = rlim.rlim_max = 8 << 20; setrlimit(RLIMIT_MEMLOCK, &rlim); rlim.rlim_cur = rlim.rlim_max = 1 << 20; setrlimit(RLIMIT_FSIZE, &rlim); rlim.rlim_cur = rlim.rlim_max = 1 << 20; setrlimit(RLIMIT_STACK, &rlim); rlim.rlim_cur = rlim.rlim_max = 0; setrlimit(RLIMIT_CORE, &rlim); rlim.rlim_cur = rlim.rlim_max = 256; setrlimit(RLIMIT_NOFILE, &rlim); } static void loop(); static int do_sandbox_none(void) { sandbox_common(); loop(); return 0; } static long syz_execute_func(volatile long text) { ((void (*)(void))(text))(); return 0; } static void execute_one(void); #define WAIT_FLAGS 0 static void loop(void) { int iter = 0; for (;; iter++) { char cwdbuf[32]; sprintf(cwdbuf, "./%d", iter); if (mkdir(cwdbuf, 0777)) exit(1); int pid = fork(); if (pid < 0) exit(1); if (pid == 0) { if (chdir(cwdbuf)) exit(1); execute_one(); exit(0); } int status = 0; uint64_t start = current_time_ms(); for (;;) { if (waitpid(-1, &status, WNOHANG | WAIT_FLAGS) == pid) break; sleep_ms(1); if (current_time_ms() - start < 5 * 1000) continue; kill_and_wait(pid, &status); break; } remove_dir(cwdbuf); } } uint64_t r[3] = {0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff}; void execute_one(void) { intptr_t res = 0; res = syscall(SYS_kqueue); if (res != -1) r[0] = res; memcpy((void*)0x10000000, "\x58\xc8\x8f\xef\xee", 5); syscall(SYS_ioctl, -1, 0xc0f24425, 0x10000000); memcpy((void*)0x10000040, "\x0b\x75\xfb\x7f\x86\xb8\x71\x9d\x9c\xa1\xc0\x3b\xb4\x6e\x48\xf0\x8a\xb6\x50\x08\x5a\xc0\x62\xed\xe9\x13\xfc\xad\xbb\xaf\x4f\x90\xf5\xc0\x7b\xd0\xca\x1a\x07\x19\x60\x2e\xd7\x7b\x72\x93\xa5\x65\x5c\xf7\x1d\xd4\xc3\xa7\x94\x64\x8a\x20\xc2\x4c\x28\xa3\x5d\x11\x0e\xf0\x8f\x0e\x34\x11\xfc\x58\x06\xa7\x72\xc9\x5a\x7f\x25\x07\x36\x95\x0a\xb3", 84); syscall(SYS_ioctl, 0xffffff9c, 0xc0184432, 0x10000040); *(uint32_t*)0x100000c0 = 0; *(uint16_t*)0x100000c4 = 4; *(uint16_t*)0x100000c6 = 0xad; memcpy((void*)0x100000c8, "\x59\xf3\xc2\x20\x66\x37\xb3\xc4\x4c\x65\xff\x50\xeb\x44\x7c\x68\x00\xe7\xee\x19\xa6\x8b\x04\x23\x30\x87\xfd\x6c\x60\x81\xc9\xd7\x1a\xed\x1a\x53\x70\x30\x8c\x7a\xa0\x17\x8e\x01\x6e\xf4\x94\x0f\xdd\xa9\xe2\x75\x7b\x5c\xe9\xc0\x83\xb5\x54\x4c\x9f\x49\xf0\xc6\xea\xdb\xa9\xba\xfb\x91\x86\x94\x2a\x03\x1c\x4f\xcc\xcf\x4d\x1f\x65\x79\x49\xa5\x2c\x4b\x1b\xfd\x20\xa6\x29\xda\x67\xde\xc2\xa0\x78\x5b\xad\xdd\xd7\xe0\x87\x53\xc2\x71\xcb\x02\x65\xb8\x92\xe6\x36\xf9\xa6\x8a\x7b\x33\x19\x57\x6c\x7d\xb0\xd8\x5a\x84\x2f\x85\x22\xb0\xc9\xb8\x85\x75\x1f\xe8\x2a\x5d\x5d\x33\xc1\x44\x2b\x6f\xd1\xde\x1b\x09\x83\x3b\x74\xf2\x2d\x41\xd4\x8d\xef\x6a\xa5\x65\x9e\x2c\x7d\x90\x9f\xea\x2f\x80\x25\xa4\x55\x3c\xd9", 173); syscall(SYS_setsockopt, -1, 0x84, 0x13, 0x100000c0, 0xb5); res = syscall(SYS_fcntl, (intptr_t)r[0], 0, -1); if (res != -1) r[1] = res; *(uint32_t*)0x100001c0 = 0x20; syscall(SYS_getsockopt, (intptr_t)r[1], 0x84, 0x105, 0x10000180, 0x100001c0); *(uint32_t*)0x10000240 = 4; syscall(SYS_getsockopt, (intptr_t)r[1], 0x84, 0x1f, 0x10000200, 0x10000240); res = syscall(SYS_socket, 2, 3, 1); if (res != -1) r[2] = res; *(uint64_t*)0x10000280 = 0x7fff; *(uint64_t*)0x100002c0 = 2; syscall(SYS_copy_file_range, (intptr_t)r[1], 0x10000280, (intptr_t)r[2], 0x100002c0, 7ull, 0); *(uint32_t*)0x10000300 = 7; *(uint16_t*)0x10000304 = 8; *(uint16_t*)0x10000306 = 1; *(uint16_t*)0x10000308 = 0; *(uint16_t*)0x1000030a = 0x1000; *(uint16_t*)0x1000030c = 8; *(uint16_t*)0x1000030e = 4; *(uint16_t*)0x10000310 = 3; syscall(SYS_setsockopt, (intptr_t)r[2], 0x84, 0x14, 0x10000300, 0x12); *(uint8_t*)0x10000000 = -1; *(uint8_t*)0x10000001 = -1; *(uint8_t*)0x10000002 = -1; *(uint8_t*)0x10000003 = -1; *(uint8_t*)0x10000004 = -1; *(uint8_t*)0x10000005 = -1; *(uint8_t*)0x10000006 = 0xaa; *(uint8_t*)0x10000007 = 0xaa; *(uint8_t*)0x10000008 = 0xaa; *(uint8_t*)0x10000009 = 0xaa; *(uint8_t*)0x1000000a = 0xaa; *(uint8_t*)0x1000000b = 0xaa; *(uint16_t*)0x1000000c = htobe16(0x806); *(uint16_t*)0x1000000e = htobe16(6); *(uint16_t*)0x10000010 = htobe16(0x8035); *(uint8_t*)0x10000012 = 6; *(uint8_t*)0x10000013 = 1; *(uint16_t*)0x10000014 = htobe16(3); *(uint8_t*)0x10000016 = 0xaa; *(uint8_t*)0x10000017 = 0xaa; *(uint8_t*)0x10000018 = 0xaa; *(uint8_t*)0x10000019 = 0xaa; *(uint8_t*)0x1000001a = 0xaa; *(uint8_t*)0x1000001b = 0xaa; memcpy((void*)0x1000001c, "\x1d", 1); memcpy((void*)0x1000001d, "\x71\x3c\x34\xac\xc0\xec", 6); memcpy((void*)0x10000023, "\x8b\xf5\x44\xbb\xf8\xba\x5b\x80\x78\x20\x7d\x73\xf8\xc0\x34\xec", 16); memcpy((void*)0x10000040, "\xf3\x0f\x58\x11\xc4\xe1\xa9\x68\xb4\xe9\xb8\xcf\x00\x00\x0f\x71\xe6\xff\x88\x71\xf9\x66\x0f\x38\x3d\xff\xf2\xdc\xf6\x2e\x2f\xd2\xae\x96\x00\x00\x00\x2e\x0f\x15\xeb\x0f\x01\xd0", 44); syz_execute_func(0x10000040); } int main(void) { syscall(SYS_mmap, 0x10000000, 0x1000000, 7, 0x1012, -1, 0); use_temporary_dir(); do_sandbox_none(); return 0; } :188:10: error: use of undeclared identifier 'SYS_copy_file_range' syscall(SYS_copy_file_range, (intptr_t)r[1], 0x10000280, (intptr_t)r[2], 0x100002c0, 7ull, 0); ^ 1 error generated. compiler invocation: clang [-o /tmp/syz-executor710167023 -DGOOS_freebsd=1 -DGOARCH_386=1 -DHOSTGOOS_freebsd=1 -x c - -m32 -O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wframe-larger-than=16384 -static -lc++ -Wno-overflow] --- FAIL: TestGenerate/freebsd/386/10 (0.99s) csource_test.go:123: opts: {Threaded:true Collide:false Repeat:true RepeatTimes:0 Procs:0 Sandbox:none Fault:false FaultCall:0 FaultNth:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false USB:false VhciInjection:false Wifi:false Sysctl:false UseTmpDir:false HandleSegv:false Repro:false Trace:false} program: r0 = kqueue() ioctl$DIOCADDSTATE(0xffffffffffffffff, 0xc0f24425, &(0x7f0000000000)="58c88fefee") ioctl$DIOCGETQSTATSV0(0xffffffffffffff9c, 0xc0184432, &(0x7f0000000040)="0b75fb7f86b8719d9ca1c03bb46e48f08ab650085ac062ede913fcadbbaf4f90f5c07bd0ca1a0719602ed77b7293a5655cf71dd4c3a794648a20c24c28a35d110ef08f0e3411fc5806a772c95a7f250736950ab3") setsockopt$inet_sctp_SCTP_AUTH_KEY(0xffffffffffffffff, 0x84, 0x13, &(0x7f00000000c0)={0x0, 0x4, 0xad, "59f3c2206637b3c44c65ff50eb447c6800e7ee19a68b04233087fd6c6081c9d71aed1a5370308c7aa0178e016ef4940fdda9e2757b5ce9c083b5544c9f49f0c6eadba9bafb9186942a031c4fcccf4d1f657949a52c4b1bfd20a629da67dec2a0785badddd7e08753c271cb0265b892e636f9a68a7b3319576c7db0d85a842f8522b0c9b885751fe82a5d5d33c1442b6fd1de1b09833b74f22d41d48def6aa5659e2c7d909fea2f8025a4553cd9"}, 0xb5) r1 = fcntl$dupfd(r0, 0x0, 0xffffffffffffffff) getsockopt$inet_sctp_SCTP_GET_ASSOC_ID_LIST(r1, 0x84, 0x105, &(0x7f0000000180)={0x7, [0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0]}, &(0x7f00000001c0)=0x20) getsockopt$inet_sctp_SCTP_RECVRCVINFO(r1, 0x84, 0x1f, &(0x7f0000000200), &(0x7f0000000240)=0x4) r2 = socket$inet(0x2, 0x3, 0x1) copy_file_range(r1, &(0x7f0000000280)=0x7fff, r2, &(0x7f00000002c0)=0x2, 0x7, 0x0) setsockopt$inet_sctp_SCTP_HMAC_IDENT(r2, 0x84, 0x14, &(0x7f0000000300)={0x7, [0x8, 0x1, 0x0, 0x1000, 0x8, 0x4, 0x3]}, 0x12) syz_emit_ethernet(0x33, &(0x7f0000000000)={@broadcast, @local, [], {@arp={0x806, @generic={0x6, 0x8035, 0x6, 0x1, 0x3, @local, "1d", @random="713c34acc0ec", "8bf544bbf8ba5b8078207d73f8c034ec"}}}}) syz_execute_func(&(0x7f0000000040)="f30f5811c4e1a968b4e9b8cf00000f71e6ff8871f9660f383dfff2dcf62e2fd2ae960000002e0f15eb0f01d0") syz_extract_tcp_res(&(0x7f0000000080), 0xffffffff, 0x1) csource_test.go:124: 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 #include #include #include #include #include static void kill_and_wait(int pid, int* status) { kill(pid, SIGKILL); while (waitpid(-1, status, 0) != pid) { } } static void sleep_ms(uint64_t ms) { usleep(ms * 1000); } static uint64_t current_time_ms(void) { struct timespec ts; if (clock_gettime(CLOCK_MONOTONIC, &ts)) exit(1); return (uint64_t)ts.tv_sec * 1000 + (uint64_t)ts.tv_nsec / 1000000; } static void thread_start(void* (*fn)(void*), void* arg) { pthread_t th; pthread_attr_t attr; pthread_attr_init(&attr); pthread_attr_setstacksize(&attr, 128 << 10); int i = 0; for (; i < 100; i++) { if (pthread_create(&th, &attr, fn, arg) == 0) { pthread_attr_destroy(&attr); return; } if (errno == EAGAIN) { usleep(50); continue; } break; } exit(1); } typedef struct { pthread_mutex_t mu; pthread_cond_t cv; int state; } event_t; static void event_init(event_t* ev) { if (pthread_mutex_init(&ev->mu, 0)) exit(1); if (pthread_cond_init(&ev->cv, 0)) exit(1); ev->state = 0; } static void event_reset(event_t* ev) { ev->state = 0; } static void event_set(event_t* ev) { pthread_mutex_lock(&ev->mu); if (ev->state) exit(1); ev->state = 1; pthread_mutex_unlock(&ev->mu); pthread_cond_broadcast(&ev->cv); } static void event_wait(event_t* ev) { pthread_mutex_lock(&ev->mu); while (!ev->state) pthread_cond_wait(&ev->cv, &ev->mu); pthread_mutex_unlock(&ev->mu); } static int event_isset(event_t* ev) { pthread_mutex_lock(&ev->mu); int res = ev->state; pthread_mutex_unlock(&ev->mu); return res; } static int event_timedwait(event_t* ev, uint64_t timeout) { uint64_t start = current_time_ms(); uint64_t now = start; pthread_mutex_lock(&ev->mu); for (;;) { if (ev->state) break; uint64_t remain = timeout - (now - start); struct timespec ts; ts.tv_sec = remain / 1000; ts.tv_nsec = (remain % 1000) * 1000 * 1000; pthread_cond_timedwait(&ev->cv, &ev->mu, &ts); now = current_time_ms(); if (now - start > timeout) break; } int res = ev->state; pthread_mutex_unlock(&ev->mu); return res; } static void sandbox_common() { struct rlimit rlim; rlim.rlim_cur = rlim.rlim_max = 128 << 20; setrlimit(RLIMIT_AS, &rlim); rlim.rlim_cur = rlim.rlim_max = 8 << 20; setrlimit(RLIMIT_MEMLOCK, &rlim); rlim.rlim_cur = rlim.rlim_max = 1 << 20; setrlimit(RLIMIT_FSIZE, &rlim); rlim.rlim_cur = rlim.rlim_max = 1 << 20; setrlimit(RLIMIT_STACK, &rlim); rlim.rlim_cur = rlim.rlim_max = 0; setrlimit(RLIMIT_CORE, &rlim); rlim.rlim_cur = rlim.rlim_max = 256; setrlimit(RLIMIT_NOFILE, &rlim); } static void loop(); static int do_sandbox_none(void) { sandbox_common(); loop(); return 0; } static long syz_execute_func(volatile long text) { ((void (*)(void))(text))(); return 0; } struct thread_t { int created, call; event_t ready, done; }; static struct thread_t threads[16]; static void execute_call(int call); static int running; static void* thr(void* arg) { struct thread_t* th = (struct thread_t*)arg; for (;;) { event_wait(&th->ready); event_reset(&th->ready); execute_call(th->call); __atomic_fetch_sub(&running, 1, __ATOMIC_RELAXED); event_set(&th->done); } return 0; } static void execute_one(void) { int i, call, thread; for (call = 0; call < 13; call++) { for (thread = 0; thread < (int)(sizeof(threads) / sizeof(threads[0])); thread++) { struct thread_t* th = &threads[thread]; if (!th->created) { th->created = 1; event_init(&th->ready); event_init(&th->done); event_set(&th->done); thread_start(thr, th); } if (!event_isset(&th->done)) continue; event_reset(&th->done); th->call = call; __atomic_fetch_add(&running, 1, __ATOMIC_RELAXED); event_set(&th->ready); event_timedwait(&th->done, 45); break; } } for (i = 0; i < 100 && __atomic_load_n(&running, __ATOMIC_RELAXED); i++) sleep_ms(1); } static void execute_one(void); #define WAIT_FLAGS 0 static void loop(void) { int iter = 0; for (;; iter++) { int pid = fork(); if (pid < 0) exit(1); if (pid == 0) { execute_one(); exit(0); } int status = 0; uint64_t start = current_time_ms(); for (;;) { if (waitpid(-1, &status, WNOHANG | WAIT_FLAGS) == pid) break; sleep_ms(1); if (current_time_ms() - start < 5 * 1000) continue; kill_and_wait(pid, &status); break; } } } uint64_t r[3] = {0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff}; void execute_call(int call) { intptr_t res = 0; switch (call) { case 0: res = syscall(SYS_kqueue); if (res != -1) r[0] = res; break; case 1: memcpy((void*)0x10000000, "\x58\xc8\x8f\xef\xee", 5); syscall(SYS_ioctl, -1, 0xc0f24425, 0x10000000); break; case 2: memcpy((void*)0x10000040, "\x0b\x75\xfb\x7f\x86\xb8\x71\x9d\x9c\xa1\xc0\x3b\xb4\x6e\x48\xf0\x8a\xb6\x50\x08\x5a\xc0\x62\xed\xe9\x13\xfc\xad\xbb\xaf\x4f\x90\xf5\xc0\x7b\xd0\xca\x1a\x07\x19\x60\x2e\xd7\x7b\x72\x93\xa5\x65\x5c\xf7\x1d\xd4\xc3\xa7\x94\x64\x8a\x20\xc2\x4c\x28\xa3\x5d\x11\x0e\xf0\x8f\x0e\x34\x11\xfc\x58\x06\xa7\x72\xc9\x5a\x7f\x25\x07\x36\x95\x0a\xb3", 84); syscall(SYS_ioctl, 0xffffff9c, 0xc0184432, 0x10000040); break; case 3: *(uint32_t*)0x100000c0 = 0; *(uint16_t*)0x100000c4 = 4; *(uint16_t*)0x100000c6 = 0xad; memcpy((void*)0x100000c8, "\x59\xf3\xc2\x20\x66\x37\xb3\xc4\x4c\x65\xff\x50\xeb\x44\x7c\x68\x00\xe7\xee\x19\xa6\x8b\x04\x23\x30\x87\xfd\x6c\x60\x81\xc9\xd7\x1a\xed\x1a\x53\x70\x30\x8c\x7a\xa0\x17\x8e\x01\x6e\xf4\x94\x0f\xdd\xa9\xe2\x75\x7b\x5c\xe9\xc0\x83\xb5\x54\x4c\x9f\x49\xf0\xc6\xea\xdb\xa9\xba\xfb\x91\x86\x94\x2a\x03\x1c\x4f\xcc\xcf\x4d\x1f\x65\x79\x49\xa5\x2c\x4b\x1b\xfd\x20\xa6\x29\xda\x67\xde\xc2\xa0\x78\x5b\xad\xdd\xd7\xe0\x87\x53\xc2\x71\xcb\x02\x65\xb8\x92\xe6\x36\xf9\xa6\x8a\x7b\x33\x19\x57\x6c\x7d\xb0\xd8\x5a\x84\x2f\x85\x22\xb0\xc9\xb8\x85\x75\x1f\xe8\x2a\x5d\x5d\x33\xc1\x44\x2b\x6f\xd1\xde\x1b\x09\x83\x3b\x74\xf2\x2d\x41\xd4\x8d\xef\x6a\xa5\x65\x9e\x2c\x7d\x90\x9f\xea\x2f\x80\x25\xa4\x55\x3c\xd9", 173); syscall(SYS_setsockopt, -1, 0x84, 0x13, 0x100000c0, 0xb5); break; case 4: res = syscall(SYS_fcntl, (intptr_t)r[0], 0, -1); if (res != -1) r[1] = res; break; case 5: *(uint32_t*)0x100001c0 = 0x20; syscall(SYS_getsockopt, (intptr_t)r[1], 0x84, 0x105, 0x10000180, 0x100001c0); break; case 6: *(uint32_t*)0x10000240 = 4; syscall(SYS_getsockopt, (intptr_t)r[1], 0x84, 0x1f, 0x10000200, 0x10000240); break; case 7: res = syscall(SYS_socket, 2, 3, 1); if (res != -1) r[2] = res; break; case 8: *(uint64_t*)0x10000280 = 0x7fff; *(uint64_t*)0x100002c0 = 2; syscall(SYS_copy_file_range, (intptr_t)r[1], 0x10000280, (intptr_t)r[2], 0x100002c0, 7ull, 0); break; case 9: *(uint32_t*)0x10000300 = 7; *(uint16_t*)0x10000304 = 8; *(uint16_t*)0x10000306 = 1; *(uint16_t*)0x10000308 = 0; *(uint16_t*)0x1000030a = 0x1000; *(uint16_t*)0x1000030c = 8; *(uint16_t*)0x1000030e = 4; *(uint16_t*)0x10000310 = 3; syscall(SYS_setsockopt, (intptr_t)r[2], 0x84, 0x14, 0x10000300, 0x12); break; case 10: *(uint8_t*)0x10000000 = -1; *(uint8_t*)0x10000001 = -1; *(uint8_t*)0x10000002 = -1; *(uint8_t*)0x10000003 = -1; *(uint8_t*)0x10000004 = -1; *(uint8_t*)0x10000005 = -1; *(uint8_t*)0x10000006 = 0xaa; *(uint8_t*)0x10000007 = 0xaa; *(uint8_t*)0x10000008 = 0xaa; *(uint8_t*)0x10000009 = 0xaa; *(uint8_t*)0x1000000a = 0xaa; *(uint8_t*)0x1000000b = 0xaa; *(uint16_t*)0x1000000c = htobe16(0x806); *(uint16_t*)0x1000000e = htobe16(6); *(uint16_t*)0x10000010 = htobe16(0x8035); *(uint8_t*)0x10000012 = 6; *(uint8_t*)0x10000013 = 1; *(uint16_t*)0x10000014 = htobe16(3); *(uint8_t*)0x10000016 = 0xaa; *(uint8_t*)0x10000017 = 0xaa; *(uint8_t*)0x10000018 = 0xaa; *(uint8_t*)0x10000019 = 0xaa; *(uint8_t*)0x1000001a = 0xaa; *(uint8_t*)0x1000001b = 0xaa; memcpy((void*)0x1000001c, "\x1d", 1); memcpy((void*)0x1000001d, "\x71\x3c\x34\xac\xc0\xec", 6); memcpy((void*)0x10000023, "\x8b\xf5\x44\xbb\xf8\xba\x5b\x80\x78\x20\x7d\x73\xf8\xc0\x34\xec", 16); break; case 11: memcpy((void*)0x10000040, "\xf3\x0f\x58\x11\xc4\xe1\xa9\x68\xb4\xe9\xb8\xcf\x00\x00\x0f\x71\xe6\xff\x88\x71\xf9\x66\x0f\x38\x3d\xff\xf2\xdc\xf6\x2e\x2f\xd2\xae\x96\x00\x00\x00\x2e\x0f\x15\xeb\x0f\x01\xd0", 44); syz_execute_func(0x10000040); break; case 12: break; } } int main(void) { syscall(SYS_mmap, 0x10000000, 0x1000000, 7, 0x1012, -1, 0); do_sandbox_none(); return 0; } :290:11: error: use of undeclared identifier 'SYS_copy_file_range' syscall(SYS_copy_file_range, (intptr_t)r[1], 0x10000280, (intptr_t)r[2], 0x100002c0, 7ull, 0); ^ 1 error generated. compiler invocation: clang [-o /tmp/syz-executor385575929 -DGOOS_freebsd=1 -DGOARCH_386=1 -DHOSTGOOS_freebsd=1 -x c - -m32 -O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wframe-larger-than=16384 -static -lc++ -Wno-overflow] --- FAIL: TestGenerate/freebsd/386/11 (1.11s) csource_test.go:123: opts: {Threaded:true Collide:false Repeat:true RepeatTimes:0 Procs:0 Sandbox:none Fault:false FaultCall:0 FaultNth:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false USB:false VhciInjection:false Wifi:false Sysctl:false UseTmpDir:true HandleSegv:true Repro:false Trace:false} program: r0 = kqueue() ioctl$DIOCADDSTATE(0xffffffffffffffff, 0xc0f24425, &(0x7f0000000000)="58c88fefee") ioctl$DIOCGETQSTATSV0(0xffffffffffffff9c, 0xc0184432, &(0x7f0000000040)="0b75fb7f86b8719d9ca1c03bb46e48f08ab650085ac062ede913fcadbbaf4f90f5c07bd0ca1a0719602ed77b7293a5655cf71dd4c3a794648a20c24c28a35d110ef08f0e3411fc5806a772c95a7f250736950ab3") setsockopt$inet_sctp_SCTP_AUTH_KEY(0xffffffffffffffff, 0x84, 0x13, &(0x7f00000000c0)={0x0, 0x4, 0xad, "59f3c2206637b3c44c65ff50eb447c6800e7ee19a68b04233087fd6c6081c9d71aed1a5370308c7aa0178e016ef4940fdda9e2757b5ce9c083b5544c9f49f0c6eadba9bafb9186942a031c4fcccf4d1f657949a52c4b1bfd20a629da67dec2a0785badddd7e08753c271cb0265b892e636f9a68a7b3319576c7db0d85a842f8522b0c9b885751fe82a5d5d33c1442b6fd1de1b09833b74f22d41d48def6aa5659e2c7d909fea2f8025a4553cd9"}, 0xb5) r1 = fcntl$dupfd(r0, 0x0, 0xffffffffffffffff) getsockopt$inet_sctp_SCTP_GET_ASSOC_ID_LIST(r1, 0x84, 0x105, &(0x7f0000000180)={0x7, [0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0]}, &(0x7f00000001c0)=0x20) getsockopt$inet_sctp_SCTP_RECVRCVINFO(r1, 0x84, 0x1f, &(0x7f0000000200), &(0x7f0000000240)=0x4) r2 = socket$inet(0x2, 0x3, 0x1) copy_file_range(r1, &(0x7f0000000280)=0x7fff, r2, &(0x7f00000002c0)=0x2, 0x7, 0x0) setsockopt$inet_sctp_SCTP_HMAC_IDENT(r2, 0x84, 0x14, &(0x7f0000000300)={0x7, [0x8, 0x1, 0x0, 0x1000, 0x8, 0x4, 0x3]}, 0x12) syz_emit_ethernet(0x33, &(0x7f0000000000)={@broadcast, @local, [], {@arp={0x806, @generic={0x6, 0x8035, 0x6, 0x1, 0x3, @local, "1d", @random="713c34acc0ec", "8bf544bbf8ba5b8078207d73f8c034ec"}}}}) syz_execute_func(&(0x7f0000000040)="f30f5811c4e1a968b4e9b8cf00000f71e6ff8871f9660f383dfff2dcf62e2fd2ae960000002e0f15eb0f01d0") syz_extract_tcp_res(&(0x7f0000000080), 0xffffffff, 0x1) csource_test.go:124: 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 #include #include #include #include #include #include #include #include static __thread int skip_segv; static __thread jmp_buf segv_env; static void segv_handler(int sig, siginfo_t* info, void* ctx) { uintptr_t addr = (uintptr_t)info->si_addr; const uintptr_t prog_start = 1 << 20; const uintptr_t prog_end = 100 << 20; int skip = __atomic_load_n(&skip_segv, __ATOMIC_RELAXED) != 0; int valid = addr < prog_start || addr > prog_end; if (sig == SIGBUS) { valid = 1; } if (skip && valid) { _longjmp(segv_env, 1); } exit(sig); } static void install_segv_handler(void) { struct sigaction sa; memset(&sa, 0, sizeof(sa)); sa.sa_sigaction = segv_handler; sa.sa_flags = SA_NODEFER | SA_SIGINFO; sigaction(SIGSEGV, &sa, NULL); sigaction(SIGBUS, &sa, NULL); } #define NONFAILING(...) ({ int ok = 1; __atomic_fetch_add(&skip_segv, 1, __ATOMIC_SEQ_CST); if (_setjmp(segv_env) == 0) { __VA_ARGS__; } else ok = 0; __atomic_fetch_sub(&skip_segv, 1, __ATOMIC_SEQ_CST); ok; }) static void kill_and_wait(int pid, int* status) { kill(pid, SIGKILL); while (waitpid(-1, status, 0) != pid) { } } static void sleep_ms(uint64_t ms) { usleep(ms * 1000); } static uint64_t current_time_ms(void) { struct timespec ts; if (clock_gettime(CLOCK_MONOTONIC, &ts)) exit(1); return (uint64_t)ts.tv_sec * 1000 + (uint64_t)ts.tv_nsec / 1000000; } static void use_temporary_dir(void) { char tmpdir_template[] = "./syzkaller.XXXXXX"; char* tmpdir = mkdtemp(tmpdir_template); if (!tmpdir) exit(1); if (chmod(tmpdir, 0777)) exit(1); if (chdir(tmpdir)) exit(1); } static void __attribute__((noinline)) remove_dir(const char* dir) { DIR* dp = opendir(dir); if (dp == NULL) { if (errno == EACCES) { if (rmdir(dir)) exit(1); return; } exit(1); } struct dirent* ep = 0; while ((ep = readdir(dp))) { if (strcmp(ep->d_name, ".") == 0 || strcmp(ep->d_name, "..") == 0) continue; char filename[FILENAME_MAX]; snprintf(filename, sizeof(filename), "%s/%s", dir, ep->d_name); struct stat st; if (lstat(filename, &st)) exit(1); if (S_ISDIR(st.st_mode)) { remove_dir(filename); continue; } if (unlink(filename)) exit(1); } closedir(dp); if (rmdir(dir)) exit(1); } static void 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; } static void sandbox_common() { struct rlimit rlim; rlim.rlim_cur = rlim.rlim_max = 128 << 20; setrlimit(RLIMIT_AS, &rlim); rlim.rlim_cur = rlim.rlim_max = 8 << 20; setrlimit(RLIMIT_MEMLOCK, &rlim); rlim.rlim_cur = rlim.rlim_max = 1 << 20; setrlimit(RLIMIT_FSIZE, &rlim); rlim.rlim_cur = rlim.rlim_max = 1 << 20; setrlimit(RLIMIT_STACK, &rlim); rlim.rlim_cur = rlim.rlim_max = 0; setrlimit(RLIMIT_CORE, &rlim); rlim.rlim_cur = rlim.rlim_max = 256; setrlimit(RLIMIT_NOFILE, &rlim); } static void loop(); static int do_sandbox_none(void) { sandbox_common(); loop(); return 0; } static long syz_execute_func(volatile long text) { ((void (*)(void))(text))(); return 0; } struct thread_t { int created, call; event_t ready, done; }; static struct thread_t threads[16]; static void execute_call(int call); static int running; static void* thr(void* arg) { struct thread_t* th = (struct thread_t*)arg; for (;;) { event_wait(&th->ready); event_reset(&th->ready); execute_call(th->call); __atomic_fetch_sub(&running, 1, __ATOMIC_RELAXED); event_set(&th->done); } return 0; } static void execute_one(void) { int i, call, thread; for (call = 0; call < 13; call++) { for (thread = 0; thread < (int)(sizeof(threads) / sizeof(threads[0])); thread++) { struct thread_t* th = &threads[thread]; if (!th->created) { th->created = 1; event_init(&th->ready); event_init(&th->done); event_set(&th->done); thread_start(thr, th); } if (!event_isset(&th->done)) continue; event_reset(&th->done); th->call = call; __atomic_fetch_add(&running, 1, __ATOMIC_RELAXED); event_set(&th->ready); event_timedwait(&th->done, 45); break; } } for (i = 0; i < 100 && __atomic_load_n(&running, __ATOMIC_RELAXED); i++) sleep_ms(1); } static void execute_one(void); #define WAIT_FLAGS 0 static void loop(void) { int iter = 0; for (;; iter++) { char cwdbuf[32]; sprintf(cwdbuf, "./%d", iter); if (mkdir(cwdbuf, 0777)) exit(1); int pid = fork(); if (pid < 0) exit(1); if (pid == 0) { if (chdir(cwdbuf)) exit(1); execute_one(); exit(0); } int status = 0; uint64_t start = current_time_ms(); for (;;) { if (waitpid(-1, &status, WNOHANG | WAIT_FLAGS) == pid) break; sleep_ms(1); if (current_time_ms() - start < 5 * 1000) continue; kill_and_wait(pid, &status); break; } remove_dir(cwdbuf); } } uint64_t r[3] = {0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff}; void execute_call(int call) { intptr_t res = 0; switch (call) { case 0: res = syscall(SYS_kqueue); if (res != -1) r[0] = res; break; case 1: NONFAILING(memcpy((void*)0x10000000, "\x58\xc8\x8f\xef\xee", 5)); syscall(SYS_ioctl, -1, 0xc0f24425, 0x10000000); break; case 2: NONFAILING(memcpy((void*)0x10000040, "\x0b\x75\xfb\x7f\x86\xb8\x71\x9d\x9c\xa1\xc0\x3b\xb4\x6e\x48\xf0\x8a\xb6\x50\x08\x5a\xc0\x62\xed\xe9\x13\xfc\xad\xbb\xaf\x4f\x90\xf5\xc0\x7b\xd0\xca\x1a\x07\x19\x60\x2e\xd7\x7b\x72\x93\xa5\x65\x5c\xf7\x1d\xd4\xc3\xa7\x94\x64\x8a\x20\xc2\x4c\x28\xa3\x5d\x11\x0e\xf0\x8f\x0e\x34\x11\xfc\x58\x06\xa7\x72\xc9\x5a\x7f\x25\x07\x36\x95\x0a\xb3", 84)); syscall(SYS_ioctl, 0xffffff9c, 0xc0184432, 0x10000040); break; case 3: NONFAILING(*(uint32_t*)0x100000c0 = 0); NONFAILING(*(uint16_t*)0x100000c4 = 4); NONFAILING(*(uint16_t*)0x100000c6 = 0xad); NONFAILING(memcpy((void*)0x100000c8, "\x59\xf3\xc2\x20\x66\x37\xb3\xc4\x4c\x65\xff\x50\xeb\x44\x7c\x68\x00\xe7\xee\x19\xa6\x8b\x04\x23\x30\x87\xfd\x6c\x60\x81\xc9\xd7\x1a\xed\x1a\x53\x70\x30\x8c\x7a\xa0\x17\x8e\x01\x6e\xf4\x94\x0f\xdd\xa9\xe2\x75\x7b\x5c\xe9\xc0\x83\xb5\x54\x4c\x9f\x49\xf0\xc6\xea\xdb\xa9\xba\xfb\x91\x86\x94\x2a\x03\x1c\x4f\xcc\xcf\x4d\x1f\x65\x79\x49\xa5\x2c\x4b\x1b\xfd\x20\xa6\x29\xda\x67\xde\xc2\xa0\x78\x5b\xad\xdd\xd7\xe0\x87\x53\xc2\x71\xcb\x02\x65\xb8\x92\xe6\x36\xf9\xa6\x8a\x7b\x33\x19\x57\x6c\x7d\xb0\xd8\x5a\x84\x2f\x85\x22\xb0\xc9\xb8\x85\x75\x1f\xe8\x2a\x5d\x5d\x33\xc1\x44\x2b\x6f\xd1\xde\x1b\x09\x83\x3b\x74\xf2\x2d\x41\xd4\x8d\xef\x6a\xa5\x65\x9e\x2c\x7d\x90\x9f\xea\x2f\x80\x25\xa4\x55\x3c\xd9", 173)); syscall(SYS_setsockopt, -1, 0x84, 0x13, 0x100000c0, 0xb5); break; case 4: res = syscall(SYS_fcntl, (intptr_t)r[0], 0, -1); if (res != -1) r[1] = res; break; case 5: NONFAILING(*(uint32_t*)0x100001c0 = 0x20); syscall(SYS_getsockopt, (intptr_t)r[1], 0x84, 0x105, 0x10000180, 0x100001c0); break; case 6: NONFAILING(*(uint32_t*)0x10000240 = 4); syscall(SYS_getsockopt, (intptr_t)r[1], 0x84, 0x1f, 0x10000200, 0x10000240); break; case 7: res = syscall(SYS_socket, 2, 3, 1); if (res != -1) r[2] = res; break; case 8: NONFAILING(*(uint64_t*)0x10000280 = 0x7fff); NONFAILING(*(uint64_t*)0x100002c0 = 2); syscall(SYS_copy_file_range, (intptr_t)r[1], 0x10000280, (intptr_t)r[2], 0x100002c0, 7ull, 0); break; case 9: NONFAILING(*(uint32_t*)0x10000300 = 7); NONFAILING(*(uint16_t*)0x10000304 = 8); NONFAILING(*(uint16_t*)0x10000306 = 1); NONFAILING(*(uint16_t*)0x10000308 = 0); NONFAILING(*(uint16_t*)0x1000030a = 0x1000); NONFAILING(*(uint16_t*)0x1000030c = 8); NONFAILING(*(uint16_t*)0x1000030e = 4); NONFAILING(*(uint16_t*)0x10000310 = 3); syscall(SYS_setsockopt, (intptr_t)r[2], 0x84, 0x14, 0x10000300, 0x12); break; case 10: NONFAILING(*(uint8_t*)0x10000000 = -1); NONFAILING(*(uint8_t*)0x10000001 = -1); NONFAILING(*(uint8_t*)0x10000002 = -1); NONFAILING(*(uint8_t*)0x10000003 = -1); NONFAILING(*(uint8_t*)0x10000004 = -1); NONFAILING(*(uint8_t*)0x10000005 = -1); NONFAILING(*(uint8_t*)0x10000006 = 0xaa); NONFAILING(*(uint8_t*)0x10000007 = 0xaa); NONFAILING(*(uint8_t*)0x10000008 = 0xaa); NONFAILING(*(uint8_t*)0x10000009 = 0xaa); NONFAILING(*(uint8_t*)0x1000000a = 0xaa); NONFAILING(*(uint8_t*)0x1000000b = 0xaa); NONFAILING(*(uint16_t*)0x1000000c = htobe16(0x806)); NONFAILING(*(uint16_t*)0x1000000e = htobe16(6)); NONFAILING(*(uint16_t*)0x10000010 = htobe16(0x8035)); NONFAILING(*(uint8_t*)0x10000012 = 6); NONFAILING(*(uint8_t*)0x10000013 = 1); NONFAILING(*(uint16_t*)0x10000014 = htobe16(3)); NONFAILING(*(uint8_t*)0x10000016 = 0xaa); NONFAILING(*(uint8_t*)0x10000017 = 0xaa); NONFAILING(*(uint8_t*)0x10000018 = 0xaa); NONFAILING(*(uint8_t*)0x10000019 = 0xaa); NONFAILING(*(uint8_t*)0x1000001a = 0xaa); NONFAILING(*(uint8_t*)0x1000001b = 0xaa); NONFAILING(memcpy((void*)0x1000001c, "\x1d", 1)); NONFAILING(memcpy((void*)0x1000001d, "\x71\x3c\x34\xac\xc0\xec", 6)); NONFAILING(memcpy((void*)0x10000023, "\x8b\xf5\x44\xbb\xf8\xba\x5b\x80\x78\x20\x7d\x73\xf8\xc0\x34\xec", 16)); break; case 11: NONFAILING(memcpy((void*)0x10000040, "\xf3\x0f\x58\x11\xc4\xe1\xa9\x68\xb4\xe9\xb8\xcf\x00\x00\x0f\x71\xe6\xff\x88\x71\xf9\x66\x0f\x38\x3d\xff\xf2\xdc\xf6\x2e\x2f\xd2\xae\x96\x00\x00\x00\x2e\x0f\x15\xeb\x0f\x01\xd0", 44)); NONFAILING(syz_execute_func(0x10000040)); break; case 12: break; } } int main(void) { syscall(SYS_mmap, 0x10000000, 0x1000000, 7, 0x1012, -1, 0); install_segv_handler(); use_temporary_dir(); do_sandbox_none(); return 0; } :375:11: error: use of undeclared identifier 'SYS_copy_file_range' syscall(SYS_copy_file_range, (intptr_t)r[1], 0x10000280, (intptr_t)r[2], 0x100002c0, 7ull, 0); ^ 1 error generated. compiler invocation: clang [-o /tmp/syz-executor363614980 -DGOOS_freebsd=1 -DGOARCH_386=1 -DHOSTGOOS_freebsd=1 -x c - -m32 -O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wframe-larger-than=16384 -static -lc++ -Wno-overflow] --- FAIL: TestGenerate/freebsd/386/9 (1.27s) csource_test.go:123: opts: {Threaded:true Collide:false Repeat:true RepeatTimes:0 Procs:0 Sandbox:none Fault:false FaultCall:0 FaultNth:0 Leak:false NetInjection:true NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false USB:false VhciInjection:false Wifi:false Sysctl:false UseTmpDir:true HandleSegv:false Repro:false Trace:false} program: r0 = kqueue() ioctl$DIOCADDSTATE(0xffffffffffffffff, 0xc0f24425, &(0x7f0000000000)="58c88fefee") ioctl$DIOCGETQSTATSV0(0xffffffffffffff9c, 0xc0184432, &(0x7f0000000040)="0b75fb7f86b8719d9ca1c03bb46e48f08ab650085ac062ede913fcadbbaf4f90f5c07bd0ca1a0719602ed77b7293a5655cf71dd4c3a794648a20c24c28a35d110ef08f0e3411fc5806a772c95a7f250736950ab3") setsockopt$inet_sctp_SCTP_AUTH_KEY(0xffffffffffffffff, 0x84, 0x13, &(0x7f00000000c0)={0x0, 0x4, 0xad, "59f3c2206637b3c44c65ff50eb447c6800e7ee19a68b04233087fd6c6081c9d71aed1a5370308c7aa0178e016ef4940fdda9e2757b5ce9c083b5544c9f49f0c6eadba9bafb9186942a031c4fcccf4d1f657949a52c4b1bfd20a629da67dec2a0785badddd7e08753c271cb0265b892e636f9a68a7b3319576c7db0d85a842f8522b0c9b885751fe82a5d5d33c1442b6fd1de1b09833b74f22d41d48def6aa5659e2c7d909fea2f8025a4553cd9"}, 0xb5) r1 = fcntl$dupfd(r0, 0x0, 0xffffffffffffffff) getsockopt$inet_sctp_SCTP_GET_ASSOC_ID_LIST(r1, 0x84, 0x105, &(0x7f0000000180)={0x7, [0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0]}, &(0x7f00000001c0)=0x20) getsockopt$inet_sctp_SCTP_RECVRCVINFO(r1, 0x84, 0x1f, &(0x7f0000000200), &(0x7f0000000240)=0x4) r2 = socket$inet(0x2, 0x3, 0x1) copy_file_range(r1, &(0x7f0000000280)=0x7fff, r2, &(0x7f00000002c0)=0x2, 0x7, 0x0) setsockopt$inet_sctp_SCTP_HMAC_IDENT(r2, 0x84, 0x14, &(0x7f0000000300)={0x7, [0x8, 0x1, 0x0, 0x1000, 0x8, 0x4, 0x3]}, 0x12) syz_emit_ethernet(0x33, &(0x7f0000000000)={@broadcast, @local, [], {@arp={0x806, @generic={0x6, 0x8035, 0x6, 0x1, 0x3, @local, "1d", @random="713c34acc0ec", "8bf544bbf8ba5b8078207d73f8c034ec"}}}}) syz_execute_func(&(0x7f0000000040)="f30f5811c4e1a968b4e9b8cf00000f71e6ff8871f9660f383dfff2dcf62e2fd2ae960000002e0f15eb0f01d0") syz_extract_tcp_res(&(0x7f0000000080), 0xffffffff, 0x1) csource_test.go:124: 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 #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include static unsigned long long procid; static void kill_and_wait(int pid, int* status) { kill(pid, SIGKILL); while (waitpid(-1, status, 0) != pid) { } } static void sleep_ms(uint64_t ms) { usleep(ms * 1000); } static uint64_t current_time_ms(void) { struct timespec ts; if (clock_gettime(CLOCK_MONOTONIC, &ts)) exit(1); return (uint64_t)ts.tv_sec * 1000 + (uint64_t)ts.tv_nsec / 1000000; } static void use_temporary_dir(void) { char tmpdir_template[] = "./syzkaller.XXXXXX"; char* tmpdir = mkdtemp(tmpdir_template); if (!tmpdir) exit(1); if (chmod(tmpdir, 0777)) exit(1); if (chdir(tmpdir)) exit(1); } static void __attribute__((noinline)) remove_dir(const char* dir) { DIR* dp = opendir(dir); if (dp == NULL) { if (errno == EACCES) { if (rmdir(dir)) exit(1); return; } exit(1); } struct dirent* ep = 0; while ((ep = readdir(dp))) { if (strcmp(ep->d_name, ".") == 0 || strcmp(ep->d_name, "..") == 0) continue; char filename[FILENAME_MAX]; snprintf(filename, sizeof(filename), "%s/%s", dir, ep->d_name); struct stat st; if (lstat(filename, &st)) exit(1); if (S_ISDIR(st.st_mode)) { remove_dir(filename); continue; } if (unlink(filename)) exit(1); } closedir(dp); if (rmdir(dir)) exit(1); } static void thread_start(void* (*fn)(void*), void* arg) { pthread_t th; pthread_attr_t attr; pthread_attr_init(&attr); pthread_attr_setstacksize(&attr, 128 << 10); int i = 0; for (; i < 100; i++) { if (pthread_create(&th, &attr, fn, arg) == 0) { pthread_attr_destroy(&attr); return; } if (errno == EAGAIN) { usleep(50); continue; } break; } exit(1); } typedef struct { pthread_mutex_t mu; pthread_cond_t cv; int state; } event_t; static void event_init(event_t* ev) { if (pthread_mutex_init(&ev->mu, 0)) exit(1); if (pthread_cond_init(&ev->cv, 0)) exit(1); ev->state = 0; } static void event_reset(event_t* ev) { ev->state = 0; } static void event_set(event_t* ev) { pthread_mutex_lock(&ev->mu); if (ev->state) exit(1); ev->state = 1; pthread_mutex_unlock(&ev->mu); pthread_cond_broadcast(&ev->cv); } static void event_wait(event_t* ev) { pthread_mutex_lock(&ev->mu); while (!ev->state) pthread_cond_wait(&ev->cv, &ev->mu); pthread_mutex_unlock(&ev->mu); } static int event_isset(event_t* ev) { pthread_mutex_lock(&ev->mu); int res = ev->state; pthread_mutex_unlock(&ev->mu); return res; } static int event_timedwait(event_t* ev, uint64_t timeout) { uint64_t start = current_time_ms(); uint64_t now = start; pthread_mutex_lock(&ev->mu); for (;;) { if (ev->state) break; uint64_t remain = timeout - (now - start); struct timespec ts; ts.tv_sec = remain / 1000; ts.tv_nsec = (remain % 1000) * 1000 * 1000; pthread_cond_timedwait(&ev->cv, &ev->mu, &ts); now = current_time_ms(); if (now - start > timeout) break; } int res = ev->state; pthread_mutex_unlock(&ev->mu); return res; } static int tunfd = -1; #define MAX_TUN 4 #define TUN_IFACE "tap%d" #define TUN_DEVICE "/dev/tap%d" #define LOCAL_MAC "aa:aa:aa:aa:aa:aa" #define REMOTE_MAC "aa:aa:aa:aa:aa:bb" #define LOCAL_IPV4 "172.20.%d.170" #define REMOTE_IPV4 "172.20.%d.187" #define LOCAL_IPV6 "fe80::%02hxaa" #define REMOTE_IPV6 "fe80::%02hxbb" static void vsnprintf_check(char* str, size_t size, const char* format, va_list args) { int rv = vsnprintf(str, size, format, args); if (rv < 0) exit(1); if ((size_t)rv >= size) exit(1); } static void snprintf_check(char* str, size_t size, const char* format, ...) { va_list args; va_start(args, format); vsnprintf_check(str, size, format, args); va_end(args); } #define COMMAND_MAX_LEN 128 #define PATH_PREFIX "PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin " #define PATH_PREFIX_LEN (sizeof(PATH_PREFIX) - 1) static void execute_command(bool panic, const char* format, ...) { va_list args; va_start(args, format); char command[PATH_PREFIX_LEN + COMMAND_MAX_LEN]; memcpy(command, PATH_PREFIX, PATH_PREFIX_LEN); vsnprintf_check(command + PATH_PREFIX_LEN, COMMAND_MAX_LEN, format, args); va_end(args); int rv = system(command); if (rv) { if (panic) exit(1); } } static void initialize_tun(int tun_id) { if (tun_id < 0 || tun_id >= MAX_TUN) { exit(1); } char tun_device[sizeof(TUN_DEVICE)]; snprintf_check(tun_device, sizeof(tun_device), TUN_DEVICE, tun_id); char tun_iface[sizeof(TUN_IFACE)]; snprintf_check(tun_iface, sizeof(tun_iface), TUN_IFACE, tun_id); execute_command(0, "ifconfig %s destroy", tun_device); tunfd = open(tun_device, O_RDWR | O_NONBLOCK); if ((tunfd < 0) && (errno == ENOENT)) { execute_command(0, "kldload -q if_tap"); tunfd = open(tun_device, O_RDWR | O_NONBLOCK); } if (tunfd == -1) { printf("tun: can't open %s: errno=%d\n", tun_device, errno); return; } const int kTunFd = 240; if (dup2(tunfd, kTunFd) < 0) exit(1); close(tunfd); tunfd = kTunFd; char local_mac[sizeof(LOCAL_MAC)]; snprintf_check(local_mac, sizeof(local_mac), LOCAL_MAC); execute_command(1, "ifconfig %s ether %s", tun_iface, local_mac); char local_ipv4[sizeof(LOCAL_IPV4)]; snprintf_check(local_ipv4, sizeof(local_ipv4), LOCAL_IPV4, tun_id); execute_command(1, "ifconfig %s inet %s netmask 255.255.255.0", tun_iface, local_ipv4); char remote_mac[sizeof(REMOTE_MAC)]; char remote_ipv4[sizeof(REMOTE_IPV4)]; snprintf_check(remote_mac, sizeof(remote_mac), REMOTE_MAC); snprintf_check(remote_ipv4, sizeof(remote_ipv4), REMOTE_IPV4, tun_id); execute_command(0, "arp -s %s %s", remote_ipv4, remote_mac); char local_ipv6[sizeof(LOCAL_IPV6)]; snprintf_check(local_ipv6, sizeof(local_ipv6), LOCAL_IPV6, tun_id); execute_command(1, "ifconfig %s inet6 %s", tun_iface, local_ipv6); char remote_ipv6[sizeof(REMOTE_IPV6)]; snprintf_check(remote_ipv6, sizeof(remote_ipv6), REMOTE_IPV6, tun_id); execute_command(0, "ndp -s %s%%%s %s", remote_ipv6, tun_iface, remote_mac); } static long syz_emit_ethernet(volatile long a0, volatile long a1) { if (tunfd < 0) return (uintptr_t)-1; size_t length = a0; const char* data = (char*)a1; return write(tunfd, data, length); } static int read_tun(char* data, int size) { if (tunfd < 0) return -1; int rv = read(tunfd, data, size); if (rv < 0) { if (errno == EAGAIN) return -1; exit(1); } return rv; } struct tcp_resources { uint32_t seq; uint32_t ack; }; static long syz_extract_tcp_res(volatile long a0, volatile long a1, volatile long a2) { if (tunfd < 0) return (uintptr_t)-1; char data[1000]; int rv = read_tun(&data[0], sizeof(data)); if (rv == -1) return (uintptr_t)-1; size_t length = rv; if (length < sizeof(struct ether_header)) return (uintptr_t)-1; struct ether_header* ethhdr = (struct ether_header*)&data[0]; struct tcphdr* tcphdr = 0; if (ethhdr->ether_type == htons(ETHERTYPE_IP)) { if (length < sizeof(struct ether_header) + sizeof(struct ip)) return (uintptr_t)-1; struct ip* iphdr = (struct ip*)&data[sizeof(struct ether_header)]; if (iphdr->ip_p != IPPROTO_TCP) return (uintptr_t)-1; if (length < sizeof(struct ether_header) + iphdr->ip_hl * 4 + sizeof(struct tcphdr)) return (uintptr_t)-1; tcphdr = (struct tcphdr*)&data[sizeof(struct ether_header) + iphdr->ip_hl * 4]; } else { if (length < sizeof(struct ether_header) + sizeof(struct ip6_hdr)) return (uintptr_t)-1; struct ip6_hdr* ipv6hdr = (struct ip6_hdr*)&data[sizeof(struct ether_header)]; if (ipv6hdr->ip6_nxt != IPPROTO_TCP) return (uintptr_t)-1; if (length < sizeof(struct ether_header) + sizeof(struct ip6_hdr) + sizeof(struct tcphdr)) return (uintptr_t)-1; tcphdr = (struct tcphdr*)&data[sizeof(struct ether_header) + sizeof(struct ip6_hdr)]; } struct tcp_resources* res = (struct tcp_resources*)a0; res->seq = htonl(ntohl(tcphdr->th_seq) + (uint32_t)a1); res->ack = htonl(ntohl(tcphdr->th_ack) + (uint32_t)a2); return 0; } static void sandbox_common() { struct rlimit rlim; rlim.rlim_cur = rlim.rlim_max = 128 << 20; setrlimit(RLIMIT_AS, &rlim); rlim.rlim_cur = rlim.rlim_max = 8 << 20; setrlimit(RLIMIT_MEMLOCK, &rlim); rlim.rlim_cur = rlim.rlim_max = 1 << 20; setrlimit(RLIMIT_FSIZE, &rlim); rlim.rlim_cur = rlim.rlim_max = 1 << 20; setrlimit(RLIMIT_STACK, &rlim); rlim.rlim_cur = rlim.rlim_max = 0; setrlimit(RLIMIT_CORE, &rlim); rlim.rlim_cur = rlim.rlim_max = 256; setrlimit(RLIMIT_NOFILE, &rlim); } static void loop(); static int do_sandbox_none(void) { sandbox_common(); initialize_tun(procid); loop(); return 0; } static long syz_execute_func(volatile long text) { ((void (*)(void))(text))(); return 0; } struct thread_t { int created, call; event_t ready, done; }; static struct thread_t threads[16]; static void execute_call(int call); static int running; static void* thr(void* arg) { struct thread_t* th = (struct thread_t*)arg; for (;;) { event_wait(&th->ready); event_reset(&th->ready); execute_call(th->call); __atomic_fetch_sub(&running, 1, __ATOMIC_RELAXED); event_set(&th->done); } return 0; } static void execute_one(void) { int i, call, thread; for (call = 0; call < 13; call++) { for (thread = 0; thread < (int)(sizeof(threads) / sizeof(threads[0])); thread++) { struct thread_t* th = &threads[thread]; if (!th->created) { th->created = 1; event_init(&th->ready); event_init(&th->done); event_set(&th->done); thread_start(thr, th); } if (!event_isset(&th->done)) continue; event_reset(&th->done); th->call = call; __atomic_fetch_add(&running, 1, __ATOMIC_RELAXED); event_set(&th->ready); event_timedwait(&th->done, 45); break; } } for (i = 0; i < 100 && __atomic_load_n(&running, __ATOMIC_RELAXED); i++) sleep_ms(1); } static void execute_one(void); #define WAIT_FLAGS 0 static void loop(void) { int iter = 0; for (;; iter++) { char cwdbuf[32]; sprintf(cwdbuf, "./%d", iter); if (mkdir(cwdbuf, 0777)) exit(1); int pid = fork(); if (pid < 0) exit(1); if (pid == 0) { if (chdir(cwdbuf)) exit(1); execute_one(); exit(0); } int status = 0; uint64_t start = current_time_ms(); for (;;) { if (waitpid(-1, &status, WNOHANG | WAIT_FLAGS) == pid) break; sleep_ms(1); if (current_time_ms() - start < 5 * 1000) continue; kill_and_wait(pid, &status); break; } remove_dir(cwdbuf); } } uint64_t r[3] = {0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff}; void execute_call(int call) { intptr_t res = 0; switch (call) { case 0: res = syscall(SYS_kqueue); if (res != -1) r[0] = res; break; case 1: memcpy((void*)0x10000000, "\x58\xc8\x8f\xef\xee", 5); syscall(SYS_ioctl, -1, 0xc0f24425, 0x10000000); break; case 2: memcpy((void*)0x10000040, "\x0b\x75\xfb\x7f\x86\xb8\x71\x9d\x9c\xa1\xc0\x3b\xb4\x6e\x48\xf0\x8a\xb6\x50\x08\x5a\xc0\x62\xed\xe9\x13\xfc\xad\xbb\xaf\x4f\x90\xf5\xc0\x7b\xd0\xca\x1a\x07\x19\x60\x2e\xd7\x7b\x72\x93\xa5\x65\x5c\xf7\x1d\xd4\xc3\xa7\x94\x64\x8a\x20\xc2\x4c\x28\xa3\x5d\x11\x0e\xf0\x8f\x0e\x34\x11\xfc\x58\x06\xa7\x72\xc9\x5a\x7f\x25\x07\x36\x95\x0a\xb3", 84); syscall(SYS_ioctl, 0xffffff9c, 0xc0184432, 0x10000040); break; case 3: *(uint32_t*)0x100000c0 = 0; *(uint16_t*)0x100000c4 = 4; *(uint16_t*)0x100000c6 = 0xad; memcpy((void*)0x100000c8, "\x59\xf3\xc2\x20\x66\x37\xb3\xc4\x4c\x65\xff\x50\xeb\x44\x7c\x68\x00\xe7\xee\x19\xa6\x8b\x04\x23\x30\x87\xfd\x6c\x60\x81\xc9\xd7\x1a\xed\x1a\x53\x70\x30\x8c\x7a\xa0\x17\x8e\x01\x6e\xf4\x94\x0f\xdd\xa9\xe2\x75\x7b\x5c\xe9\xc0\x83\xb5\x54\x4c\x9f\x49\xf0\xc6\xea\xdb\xa9\xba\xfb\x91\x86\x94\x2a\x03\x1c\x4f\xcc\xcf\x4d\x1f\x65\x79\x49\xa5\x2c\x4b\x1b\xfd\x20\xa6\x29\xda\x67\xde\xc2\xa0\x78\x5b\xad\xdd\xd7\xe0\x87\x53\xc2\x71\xcb\x02\x65\xb8\x92\xe6\x36\xf9\xa6\x8a\x7b\x33\x19\x57\x6c\x7d\xb0\xd8\x5a\x84\x2f\x85\x22\xb0\xc9\xb8\x85\x75\x1f\xe8\x2a\x5d\x5d\x33\xc1\x44\x2b\x6f\xd1\xde\x1b\x09\x83\x3b\x74\xf2\x2d\x41\xd4\x8d\xef\x6a\xa5\x65\x9e\x2c\x7d\x90\x9f\xea\x2f\x80\x25\xa4\x55\x3c\xd9", 173); syscall(SYS_setsockopt, -1, 0x84, 0x13, 0x100000c0, 0xb5); break; case 4: res = syscall(SYS_fcntl, (intptr_t)r[0], 0, -1); if (res != -1) r[1] = res; break; case 5: *(uint32_t*)0x100001c0 = 0x20; syscall(SYS_getsockopt, (intptr_t)r[1], 0x84, 0x105, 0x10000180, 0x100001c0); break; case 6: *(uint32_t*)0x10000240 = 4; syscall(SYS_getsockopt, (intptr_t)r[1], 0x84, 0x1f, 0x10000200, 0x10000240); break; case 7: res = syscall(SYS_socket, 2, 3, 1); if (res != -1) r[2] = res; break; case 8: *(uint64_t*)0x10000280 = 0x7fff; *(uint64_t*)0x100002c0 = 2; syscall(SYS_copy_file_range, (intptr_t)r[1], 0x10000280, (intptr_t)r[2], 0x100002c0, 7ull, 0); break; case 9: *(uint32_t*)0x10000300 = 7; *(uint16_t*)0x10000304 = 8; *(uint16_t*)0x10000306 = 1; *(uint16_t*)0x10000308 = 0; *(uint16_t*)0x1000030a = 0x1000; *(uint16_t*)0x1000030c = 8; *(uint16_t*)0x1000030e = 4; *(uint16_t*)0x10000310 = 3; syscall(SYS_setsockopt, (intptr_t)r[2], 0x84, 0x14, 0x10000300, 0x12); break; case 10: *(uint8_t*)0x10000000 = -1; *(uint8_t*)0x10000001 = -1; *(uint8_t*)0x10000002 = -1; *(uint8_t*)0x10000003 = -1; *(uint8_t*)0x10000004 = -1; *(uint8_t*)0x10000005 = -1; *(uint8_t*)0x10000006 = 0xaa; *(uint8_t*)0x10000007 = 0xaa; *(uint8_t*)0x10000008 = 0xaa; *(uint8_t*)0x10000009 = 0xaa; *(uint8_t*)0x1000000a = 0xaa; *(uint8_t*)0x1000000b = 0xaa; *(uint16_t*)0x1000000c = htobe16(0x806); *(uint16_t*)0x1000000e = htobe16(6); *(uint16_t*)0x10000010 = htobe16(0x8035); *(uint8_t*)0x10000012 = 6; *(uint8_t*)0x10000013 = 1; *(uint16_t*)0x10000014 = htobe16(3); *(uint8_t*)0x10000016 = 0xaa; *(uint8_t*)0x10000017 = 0xaa; *(uint8_t*)0x10000018 = 0xaa; *(uint8_t*)0x10000019 = 0xaa; *(uint8_t*)0x1000001a = 0xaa; *(uint8_t*)0x1000001b = 0xaa; memcpy((void*)0x1000001c, "\x1d", 1); memcpy((void*)0x1000001d, "\x71\x3c\x34\xac\xc0\xec", 6); memcpy((void*)0x10000023, "\x8b\xf5\x44\xbb\xf8\xba\x5b\x80\x78\x20\x7d\x73\xf8\xc0\x34\xec", 16); syz_emit_ethernet(0x33, 0x10000000); break; case 11: memcpy((void*)0x10000040, "\xf3\x0f\x58\x11\xc4\xe1\xa9\x68\xb4\xe9\xb8\xcf\x00\x00\x0f\x71\xe6\xff\x88\x71\xf9\x66\x0f\x38\x3d\xff\xf2\xdc\xf6\x2e\x2f\xd2\xae\x96\x00\x00\x00\x2e\x0f\x15\xeb\x0f\x01\xd0", 44); syz_execute_func(0x10000040); break; case 12: syz_extract_tcp_res(0x10000080, -1, 1); break; } } int main(void) { syscall(SYS_mmap, 0x10000000, 0x1000000, 7, 0x1012, -1, 0); use_temporary_dir(); do_sandbox_none(); return 0; } :515:11: error: use of undeclared identifier 'SYS_copy_file_range' syscall(SYS_copy_file_range, (intptr_t)r[1], 0x10000280, (intptr_t)r[2], 0x100002c0, 7ull, 0); ^ 1 error generated. compiler invocation: clang [-o /tmp/syz-executor116137619 -DGOOS_freebsd=1 -DGOARCH_386=1 -DHOSTGOOS_freebsd=1 -x c - -m32 -O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wframe-larger-than=16384 -static -lc++ -Wno-overflow] --- FAIL: TestGenerate/freebsd/386/8 (1.58s) csource_test.go:123: opts: {Threaded:true Collide:false Repeat:true RepeatTimes:0 Procs:0 Sandbox:setuid Fault:false FaultCall:0 FaultNth:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false USB:false VhciInjection:false Wifi:false Sysctl:false UseTmpDir:true HandleSegv:false Repro:false Trace:false} program: r0 = kqueue() ioctl$DIOCADDSTATE(0xffffffffffffffff, 0xc0f24425, &(0x7f0000000000)="58c88fefee") ioctl$DIOCGETQSTATSV0(0xffffffffffffff9c, 0xc0184432, &(0x7f0000000040)="0b75fb7f86b8719d9ca1c03bb46e48f08ab650085ac062ede913fcadbbaf4f90f5c07bd0ca1a0719602ed77b7293a5655cf71dd4c3a794648a20c24c28a35d110ef08f0e3411fc5806a772c95a7f250736950ab3") setsockopt$inet_sctp_SCTP_AUTH_KEY(0xffffffffffffffff, 0x84, 0x13, &(0x7f00000000c0)={0x0, 0x4, 0xad, "59f3c2206637b3c44c65ff50eb447c6800e7ee19a68b04233087fd6c6081c9d71aed1a5370308c7aa0178e016ef4940fdda9e2757b5ce9c083b5544c9f49f0c6eadba9bafb9186942a031c4fcccf4d1f657949a52c4b1bfd20a629da67dec2a0785badddd7e08753c271cb0265b892e636f9a68a7b3319576c7db0d85a842f8522b0c9b885751fe82a5d5d33c1442b6fd1de1b09833b74f22d41d48def6aa5659e2c7d909fea2f8025a4553cd9"}, 0xb5) r1 = fcntl$dupfd(r0, 0x0, 0xffffffffffffffff) getsockopt$inet_sctp_SCTP_GET_ASSOC_ID_LIST(r1, 0x84, 0x105, &(0x7f0000000180)={0x7, [0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0]}, &(0x7f00000001c0)=0x20) getsockopt$inet_sctp_SCTP_RECVRCVINFO(r1, 0x84, 0x1f, &(0x7f0000000200), &(0x7f0000000240)=0x4) r2 = socket$inet(0x2, 0x3, 0x1) copy_file_range(r1, &(0x7f0000000280)=0x7fff, r2, &(0x7f00000002c0)=0x2, 0x7, 0x0) setsockopt$inet_sctp_SCTP_HMAC_IDENT(r2, 0x84, 0x14, &(0x7f0000000300)={0x7, [0x8, 0x1, 0x0, 0x1000, 0x8, 0x4, 0x3]}, 0x12) syz_emit_ethernet(0x33, &(0x7f0000000000)={@broadcast, @local, [], {@arp={0x806, @generic={0x6, 0x8035, 0x6, 0x1, 0x3, @local, "1d", @random="713c34acc0ec", "8bf544bbf8ba5b8078207d73f8c034ec"}}}}) syz_execute_func(&(0x7f0000000040)="f30f5811c4e1a968b4e9b8cf00000f71e6ff8871f9660f383dfff2dcf62e2fd2ae960000002e0f15eb0f01d0") syz_extract_tcp_res(&(0x7f0000000080), 0xffffffff, 0x1) csource_test.go:124: 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 #include #include #include #include #include #include #include static void kill_and_wait(int pid, int* status) { kill(pid, SIGKILL); while (waitpid(-1, status, 0) != pid) { } } static void sleep_ms(uint64_t ms) { usleep(ms * 1000); } static uint64_t current_time_ms(void) { struct timespec ts; if (clock_gettime(CLOCK_MONOTONIC, &ts)) exit(1); return (uint64_t)ts.tv_sec * 1000 + (uint64_t)ts.tv_nsec / 1000000; } static void use_temporary_dir(void) { char tmpdir_template[] = "./syzkaller.XXXXXX"; char* tmpdir = mkdtemp(tmpdir_template); if (!tmpdir) exit(1); if (chmod(tmpdir, 0777)) exit(1); if (chdir(tmpdir)) exit(1); } static void __attribute__((noinline)) remove_dir(const char* dir) { DIR* dp = opendir(dir); if (dp == NULL) { if (errno == EACCES) { if (rmdir(dir)) exit(1); return; } exit(1); } struct dirent* ep = 0; while ((ep = readdir(dp))) { if (strcmp(ep->d_name, ".") == 0 || strcmp(ep->d_name, "..") == 0) continue; char filename[FILENAME_MAX]; snprintf(filename, sizeof(filename), "%s/%s", dir, ep->d_name); struct stat st; if (lstat(filename, &st)) exit(1); if (S_ISDIR(st.st_mode)) { remove_dir(filename); continue; } if (unlink(filename)) exit(1); } closedir(dp); if (rmdir(dir)) exit(1); } static void thread_start(void* (*fn)(void*), void* arg) { pthread_t th; pthread_attr_t attr; pthread_attr_init(&attr); pthread_attr_setstacksize(&attr, 128 << 10); int i = 0; for (; i < 100; i++) { if (pthread_create(&th, &attr, fn, arg) == 0) { pthread_attr_destroy(&attr); return; } if (errno == EAGAIN) { usleep(50); continue; } break; } exit(1); } typedef struct { pthread_mutex_t mu; pthread_cond_t cv; int state; } event_t; static void event_init(event_t* ev) { if (pthread_mutex_init(&ev->mu, 0)) exit(1); if (pthread_cond_init(&ev->cv, 0)) exit(1); ev->state = 0; } static void event_reset(event_t* ev) { ev->state = 0; } static void event_set(event_t* ev) { pthread_mutex_lock(&ev->mu); if (ev->state) exit(1); ev->state = 1; pthread_mutex_unlock(&ev->mu); pthread_cond_broadcast(&ev->cv); } static void event_wait(event_t* ev) { pthread_mutex_lock(&ev->mu); while (!ev->state) pthread_cond_wait(&ev->cv, &ev->mu); pthread_mutex_unlock(&ev->mu); } static int event_isset(event_t* ev) { pthread_mutex_lock(&ev->mu); int res = ev->state; pthread_mutex_unlock(&ev->mu); return res; } static int event_timedwait(event_t* ev, uint64_t timeout) { uint64_t start = current_time_ms(); uint64_t now = start; pthread_mutex_lock(&ev->mu); for (;;) { if (ev->state) break; uint64_t remain = timeout - (now - start); struct timespec ts; ts.tv_sec = remain / 1000; ts.tv_nsec = (remain % 1000) * 1000 * 1000; pthread_cond_timedwait(&ev->cv, &ev->mu, &ts); now = current_time_ms(); if (now - start > timeout) break; } int res = ev->state; pthread_mutex_unlock(&ev->mu); return res; } static void sandbox_common() { struct rlimit rlim; rlim.rlim_cur = rlim.rlim_max = 128 << 20; setrlimit(RLIMIT_AS, &rlim); rlim.rlim_cur = rlim.rlim_max = 8 << 20; setrlimit(RLIMIT_MEMLOCK, &rlim); rlim.rlim_cur = rlim.rlim_max = 1 << 20; setrlimit(RLIMIT_FSIZE, &rlim); rlim.rlim_cur = rlim.rlim_max = 1 << 20; setrlimit(RLIMIT_STACK, &rlim); rlim.rlim_cur = rlim.rlim_max = 0; setrlimit(RLIMIT_CORE, &rlim); rlim.rlim_cur = rlim.rlim_max = 256; setrlimit(RLIMIT_NOFILE, &rlim); } static void loop(); static int wait_for_loop(int pid) { if (pid < 0) exit(1); int status = 0; while (waitpid(-1, &status, WUNTRACED) != pid) { } return WEXITSTATUS(status); } static int do_sandbox_setuid(void) { int pid = fork(); if (pid != 0) return wait_for_loop(pid); sandbox_common(); char pwbuf[1024]; struct passwd *pw, pwres; if (getpwnam_r("nobody", &pwres, pwbuf, sizeof(pwbuf), &pw) != 0 || !pw) exit(1); if (setgroups(0, NULL)) exit(1); if (setgid(pw->pw_gid)) exit(1); if (setuid(pw->pw_uid)) exit(1); loop(); exit(1); } static long syz_execute_func(volatile long text) { ((void (*)(void))(text))(); return 0; } struct thread_t { int created, call; event_t ready, done; }; static struct thread_t threads[16]; static void execute_call(int call); static int running; static void* thr(void* arg) { struct thread_t* th = (struct thread_t*)arg; for (;;) { event_wait(&th->ready); event_reset(&th->ready); execute_call(th->call); __atomic_fetch_sub(&running, 1, __ATOMIC_RELAXED); event_set(&th->done); } return 0; } static void execute_one(void) { int i, call, thread; for (call = 0; call < 13; call++) { for (thread = 0; thread < (int)(sizeof(threads) / sizeof(threads[0])); thread++) { struct thread_t* th = &threads[thread]; if (!th->created) { th->created = 1; event_init(&th->ready); event_init(&th->done); event_set(&th->done); thread_start(thr, th); } if (!event_isset(&th->done)) continue; event_reset(&th->done); th->call = call; __atomic_fetch_add(&running, 1, __ATOMIC_RELAXED); event_set(&th->ready); event_timedwait(&th->done, 45); break; } } for (i = 0; i < 100 && __atomic_load_n(&running, __ATOMIC_RELAXED); i++) sleep_ms(1); } static void execute_one(void); #define WAIT_FLAGS 0 static void loop(void) { int iter = 0; for (;; iter++) { char cwdbuf[32]; sprintf(cwdbuf, "./%d", iter); if (mkdir(cwdbuf, 0777)) exit(1); int pid = fork(); if (pid < 0) exit(1); if (pid == 0) { if (chdir(cwdbuf)) exit(1); execute_one(); exit(0); } int status = 0; uint64_t start = current_time_ms(); for (;;) { if (waitpid(-1, &status, WNOHANG | WAIT_FLAGS) == pid) break; sleep_ms(1); if (current_time_ms() - start < 5 * 1000) continue; kill_and_wait(pid, &status); break; } remove_dir(cwdbuf); } } uint64_t r[3] = {0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff}; void execute_call(int call) { intptr_t res = 0; switch (call) { case 0: res = syscall(SYS_kqueue); if (res != -1) r[0] = res; break; case 1: memcpy((void*)0x10000000, "\x58\xc8\x8f\xef\xee", 5); syscall(SYS_ioctl, -1, 0xc0f24425, 0x10000000); break; case 2: memcpy((void*)0x10000040, "\x0b\x75\xfb\x7f\x86\xb8\x71\x9d\x9c\xa1\xc0\x3b\xb4\x6e\x48\xf0\x8a\xb6\x50\x08\x5a\xc0\x62\xed\xe9\x13\xfc\xad\xbb\xaf\x4f\x90\xf5\xc0\x7b\xd0\xca\x1a\x07\x19\x60\x2e\xd7\x7b\x72\x93\xa5\x65\x5c\xf7\x1d\xd4\xc3\xa7\x94\x64\x8a\x20\xc2\x4c\x28\xa3\x5d\x11\x0e\xf0\x8f\x0e\x34\x11\xfc\x58\x06\xa7\x72\xc9\x5a\x7f\x25\x07\x36\x95\x0a\xb3", 84); syscall(SYS_ioctl, 0xffffff9c, 0xc0184432, 0x10000040); break; case 3: *(uint32_t*)0x100000c0 = 0; *(uint16_t*)0x100000c4 = 4; *(uint16_t*)0x100000c6 = 0xad; memcpy((void*)0x100000c8, "\x59\xf3\xc2\x20\x66\x37\xb3\xc4\x4c\x65\xff\x50\xeb\x44\x7c\x68\x00\xe7\xee\x19\xa6\x8b\x04\x23\x30\x87\xfd\x6c\x60\x81\xc9\xd7\x1a\xed\x1a\x53\x70\x30\x8c\x7a\xa0\x17\x8e\x01\x6e\xf4\x94\x0f\xdd\xa9\xe2\x75\x7b\x5c\xe9\xc0\x83\xb5\x54\x4c\x9f\x49\xf0\xc6\xea\xdb\xa9\xba\xfb\x91\x86\x94\x2a\x03\x1c\x4f\xcc\xcf\x4d\x1f\x65\x79\x49\xa5\x2c\x4b\x1b\xfd\x20\xa6\x29\xda\x67\xde\xc2\xa0\x78\x5b\xad\xdd\xd7\xe0\x87\x53\xc2\x71\xcb\x02\x65\xb8\x92\xe6\x36\xf9\xa6\x8a\x7b\x33\x19\x57\x6c\x7d\xb0\xd8\x5a\x84\x2f\x85\x22\xb0\xc9\xb8\x85\x75\x1f\xe8\x2a\x5d\x5d\x33\xc1\x44\x2b\x6f\xd1\xde\x1b\x09\x83\x3b\x74\xf2\x2d\x41\xd4\x8d\xef\x6a\xa5\x65\x9e\x2c\x7d\x90\x9f\xea\x2f\x80\x25\xa4\x55\x3c\xd9", 173); syscall(SYS_setsockopt, -1, 0x84, 0x13, 0x100000c0, 0xb5); break; case 4: res = syscall(SYS_fcntl, (intptr_t)r[0], 0, -1); if (res != -1) r[1] = res; break; case 5: *(uint32_t*)0x100001c0 = 0x20; syscall(SYS_getsockopt, (intptr_t)r[1], 0x84, 0x105, 0x10000180, 0x100001c0); break; case 6: *(uint32_t*)0x10000240 = 4; syscall(SYS_getsockopt, (intptr_t)r[1], 0x84, 0x1f, 0x10000200, 0x10000240); break; case 7: res = syscall(SYS_socket, 2, 3, 1); if (res != -1) r[2] = res; break; case 8: *(uint64_t*)0x10000280 = 0x7fff; *(uint64_t*)0x100002c0 = 2; syscall(SYS_copy_file_range, (intptr_t)r[1], 0x10000280, (intptr_t)r[2], 0x100002c0, 7ull, 0); break; case 9: *(uint32_t*)0x10000300 = 7; *(uint16_t*)0x10000304 = 8; *(uint16_t*)0x10000306 = 1; *(uint16_t*)0x10000308 = 0; *(uint16_t*)0x1000030a = 0x1000; *(uint16_t*)0x1000030c = 8; *(uint16_t*)0x1000030e = 4; *(uint16_t*)0x10000310 = 3; syscall(SYS_setsockopt, (intptr_t)r[2], 0x84, 0x14, 0x10000300, 0x12); break; case 10: *(uint8_t*)0x10000000 = -1; *(uint8_t*)0x10000001 = -1; *(uint8_t*)0x10000002 = -1; *(uint8_t*)0x10000003 = -1; *(uint8_t*)0x10000004 = -1; *(uint8_t*)0x10000005 = -1; *(uint8_t*)0x10000006 = 0xaa; *(uint8_t*)0x10000007 = 0xaa; *(uint8_t*)0x10000008 = 0xaa; *(uint8_t*)0x10000009 = 0xaa; *(uint8_t*)0x1000000a = 0xaa; *(uint8_t*)0x1000000b = 0xaa; *(uint16_t*)0x1000000c = htobe16(0x806); *(uint16_t*)0x1000000e = htobe16(6); *(uint16_t*)0x10000010 = htobe16(0x8035); *(uint8_t*)0x10000012 = 6; *(uint8_t*)0x10000013 = 1; *(uint16_t*)0x10000014 = htobe16(3); *(uint8_t*)0x10000016 = 0xaa; *(uint8_t*)0x10000017 = 0xaa; *(uint8_t*)0x10000018 = 0xaa; *(uint8_t*)0x10000019 = 0xaa; *(uint8_t*)0x1000001a = 0xaa; *(uint8_t*)0x1000001b = 0xaa; memcpy((void*)0x1000001c, "\x1d", 1); memcpy((void*)0x1000001d, "\x71\x3c\x34\xac\xc0\xec", 6); memcpy((void*)0x10000023, "\x8b\xf5\x44\xbb\xf8\xba\x5b\x80\x78\x20\x7d\x73\xf8\xc0\x34\xec", 16); break; case 11: memcpy((void*)0x10000040, "\xf3\x0f\x58\x11\xc4\xe1\xa9\x68\xb4\xe9\xb8\xcf\x00\x00\x0f\x71\xe6\xff\x88\x71\xf9\x66\x0f\x38\x3d\xff\xf2\xdc\xf6\x2e\x2f\xd2\xae\x96\x00\x00\x00\x2e\x0f\x15\xeb\x0f\x01\xd0", 44); syz_execute_func(0x10000040); break; case 12: break; } } int main(void) { syscall(SYS_mmap, 0x10000000, 0x1000000, 7, 0x1012, -1, 0); use_temporary_dir(); do_sandbox_setuid(); return 0; } :366:11: error: use of undeclared identifier 'SYS_copy_file_range' syscall(SYS_copy_file_range, (intptr_t)r[1], 0x10000280, (intptr_t)r[2], 0x100002c0, 7ull, 0); ^ 1 error generated. compiler invocation: clang [-o /tmp/syz-executor739259512 -DGOOS_freebsd=1 -DGOARCH_386=1 -DHOSTGOOS_freebsd=1 -x c - -m32 -O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wframe-larger-than=16384 -static -lc++ -Wno-overflow] --- FAIL: TestGenerate/freebsd/386/13 (1.36s) csource_test.go:123: opts: {Threaded:true Collide:false Repeat:true RepeatTimes:0 Procs:0 Sandbox:none Fault:false FaultCall:0 FaultNth:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false USB:false VhciInjection:false Wifi:false Sysctl:false UseTmpDir:true HandleSegv:false Repro:false Trace:true} program: r0 = kqueue() ioctl$DIOCADDSTATE(0xffffffffffffffff, 0xc0f24425, &(0x7f0000000000)="58c88fefee") ioctl$DIOCGETQSTATSV0(0xffffffffffffff9c, 0xc0184432, &(0x7f0000000040)="0b75fb7f86b8719d9ca1c03bb46e48f08ab650085ac062ede913fcadbbaf4f90f5c07bd0ca1a0719602ed77b7293a5655cf71dd4c3a794648a20c24c28a35d110ef08f0e3411fc5806a772c95a7f250736950ab3") setsockopt$inet_sctp_SCTP_AUTH_KEY(0xffffffffffffffff, 0x84, 0x13, &(0x7f00000000c0)={0x0, 0x4, 0xad, "59f3c2206637b3c44c65ff50eb447c6800e7ee19a68b04233087fd6c6081c9d71aed1a5370308c7aa0178e016ef4940fdda9e2757b5ce9c083b5544c9f49f0c6eadba9bafb9186942a031c4fcccf4d1f657949a52c4b1bfd20a629da67dec2a0785badddd7e08753c271cb0265b892e636f9a68a7b3319576c7db0d85a842f8522b0c9b885751fe82a5d5d33c1442b6fd1de1b09833b74f22d41d48def6aa5659e2c7d909fea2f8025a4553cd9"}, 0xb5) r1 = fcntl$dupfd(r0, 0x0, 0xffffffffffffffff) getsockopt$inet_sctp_SCTP_GET_ASSOC_ID_LIST(r1, 0x84, 0x105, &(0x7f0000000180)={0x7, [0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0]}, &(0x7f00000001c0)=0x20) getsockopt$inet_sctp_SCTP_RECVRCVINFO(r1, 0x84, 0x1f, &(0x7f0000000200), &(0x7f0000000240)=0x4) r2 = socket$inet(0x2, 0x3, 0x1) copy_file_range(r1, &(0x7f0000000280)=0x7fff, r2, &(0x7f00000002c0)=0x2, 0x7, 0x0) setsockopt$inet_sctp_SCTP_HMAC_IDENT(r2, 0x84, 0x14, &(0x7f0000000300)={0x7, [0x8, 0x1, 0x0, 0x1000, 0x8, 0x4, 0x3]}, 0x12) syz_emit_ethernet(0x33, &(0x7f0000000000)={@broadcast, @local, [], {@arp={0x806, @generic={0x6, 0x8035, 0x6, 0x1, 0x3, @local, "1d", @random="713c34acc0ec", "8bf544bbf8ba5b8078207d73f8c034ec"}}}}) syz_execute_func(&(0x7f0000000040)="f30f5811c4e1a968b4e9b8cf00000f71e6ff8871f9660f383dfff2dcf62e2fd2ae960000002e0f15eb0f01d0") syz_extract_tcp_res(&(0x7f0000000080), 0xffffffff, 0x1) csource_test.go:124: 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 #include #include #include #include #include #include #include static void kill_and_wait(int pid, int* status) { kill(pid, SIGKILL); while (waitpid(-1, status, 0) != pid) { } } static void sleep_ms(uint64_t ms) { usleep(ms * 1000); } static uint64_t current_time_ms(void) { struct timespec ts; if (clock_gettime(CLOCK_MONOTONIC, &ts)) exit(1); return (uint64_t)ts.tv_sec * 1000 + (uint64_t)ts.tv_nsec / 1000000; } static void use_temporary_dir(void) { char tmpdir_template[] = "./syzkaller.XXXXXX"; char* tmpdir = mkdtemp(tmpdir_template); if (!tmpdir) exit(1); if (chmod(tmpdir, 0777)) exit(1); if (chdir(tmpdir)) exit(1); } static void __attribute__((noinline)) remove_dir(const char* dir) { DIR* dp = opendir(dir); if (dp == NULL) { if (errno == EACCES) { if (rmdir(dir)) exit(1); return; } exit(1); } struct dirent* ep = 0; while ((ep = readdir(dp))) { if (strcmp(ep->d_name, ".") == 0 || strcmp(ep->d_name, "..") == 0) continue; char filename[FILENAME_MAX]; snprintf(filename, sizeof(filename), "%s/%s", dir, ep->d_name); struct stat st; if (lstat(filename, &st)) exit(1); if (S_ISDIR(st.st_mode)) { remove_dir(filename); continue; } if (unlink(filename)) exit(1); } closedir(dp); if (rmdir(dir)) exit(1); } static void thread_start(void* (*fn)(void*), void* arg) { pthread_t th; pthread_attr_t attr; pthread_attr_init(&attr); pthread_attr_setstacksize(&attr, 128 << 10); int i = 0; for (; i < 100; i++) { if (pthread_create(&th, &attr, fn, arg) == 0) { pthread_attr_destroy(&attr); return; } if (errno == EAGAIN) { usleep(50); continue; } break; } exit(1); } typedef struct { pthread_mutex_t mu; pthread_cond_t cv; int state; } event_t; static void event_init(event_t* ev) { if (pthread_mutex_init(&ev->mu, 0)) exit(1); if (pthread_cond_init(&ev->cv, 0)) exit(1); ev->state = 0; } static void event_reset(event_t* ev) { ev->state = 0; } static void event_set(event_t* ev) { pthread_mutex_lock(&ev->mu); if (ev->state) exit(1); ev->state = 1; pthread_mutex_unlock(&ev->mu); pthread_cond_broadcast(&ev->cv); } static void event_wait(event_t* ev) { pthread_mutex_lock(&ev->mu); while (!ev->state) pthread_cond_wait(&ev->cv, &ev->mu); pthread_mutex_unlock(&ev->mu); } static int event_isset(event_t* ev) { pthread_mutex_lock(&ev->mu); int res = ev->state; pthread_mutex_unlock(&ev->mu); return res; } static int event_timedwait(event_t* ev, uint64_t timeout) { uint64_t start = current_time_ms(); uint64_t now = start; pthread_mutex_lock(&ev->mu); for (;;) { if (ev->state) break; uint64_t remain = timeout - (now - start); struct timespec ts; ts.tv_sec = remain / 1000; ts.tv_nsec = (remain % 1000) * 1000 * 1000; pthread_cond_timedwait(&ev->cv, &ev->mu, &ts); now = current_time_ms(); if (now - start > timeout) break; } int res = ev->state; pthread_mutex_unlock(&ev->mu); return res; } static void sandbox_common() { struct rlimit rlim; rlim.rlim_cur = rlim.rlim_max = 128 << 20; setrlimit(RLIMIT_AS, &rlim); rlim.rlim_cur = rlim.rlim_max = 8 << 20; setrlimit(RLIMIT_MEMLOCK, &rlim); rlim.rlim_cur = rlim.rlim_max = 1 << 20; setrlimit(RLIMIT_FSIZE, &rlim); rlim.rlim_cur = rlim.rlim_max = 1 << 20; setrlimit(RLIMIT_STACK, &rlim); rlim.rlim_cur = rlim.rlim_max = 0; setrlimit(RLIMIT_CORE, &rlim); rlim.rlim_cur = rlim.rlim_max = 256; setrlimit(RLIMIT_NOFILE, &rlim); } static void loop(); static int do_sandbox_none(void) { sandbox_common(); loop(); return 0; } static long syz_execute_func(volatile long text) { ((void (*)(void))(text))(); return 0; } struct thread_t { int created, call; event_t ready, done; }; static struct thread_t threads[16]; static void execute_call(int call); static int running; static void* thr(void* arg) { struct thread_t* th = (struct thread_t*)arg; for (;;) { event_wait(&th->ready); event_reset(&th->ready); execute_call(th->call); __atomic_fetch_sub(&running, 1, __ATOMIC_RELAXED); event_set(&th->done); } return 0; } static void execute_one(void) { fprintf(stderr, "### start\n"); int i, call, thread; for (call = 0; call < 13; call++) { for (thread = 0; thread < (int)(sizeof(threads) / sizeof(threads[0])); thread++) { struct thread_t* th = &threads[thread]; if (!th->created) { th->created = 1; event_init(&th->ready); event_init(&th->done); event_set(&th->done); thread_start(thr, th); } if (!event_isset(&th->done)) continue; event_reset(&th->done); th->call = call; __atomic_fetch_add(&running, 1, __ATOMIC_RELAXED); event_set(&th->ready); event_timedwait(&th->done, 45); break; } } for (i = 0; i < 100 && __atomic_load_n(&running, __ATOMIC_RELAXED); i++) sleep_ms(1); } static void execute_one(void); #define WAIT_FLAGS 0 static void loop(void) { int iter = 0; for (;; iter++) { char cwdbuf[32]; sprintf(cwdbuf, "./%d", iter); if (mkdir(cwdbuf, 0777)) exit(1); int pid = fork(); if (pid < 0) exit(1); if (pid == 0) { if (chdir(cwdbuf)) exit(1); execute_one(); exit(0); } int status = 0; uint64_t start = current_time_ms(); for (;;) { if (waitpid(-1, &status, WNOHANG | WAIT_FLAGS) == pid) break; sleep_ms(1); if (current_time_ms() - start < 5 * 1000) continue; kill_and_wait(pid, &status); break; } remove_dir(cwdbuf); } } uint64_t r[3] = {0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff}; void execute_call(int call) { intptr_t res = 0; switch (call) { case 0: res = syscall(SYS_kqueue); fprintf(stderr, "### call=0 errno=%u\n", res == -1 ? errno : 0); if (res != -1) r[0] = res; break; case 1: memcpy((void*)0x10000000, "\x58\xc8\x8f\xef\xee", 5); res = syscall(SYS_ioctl, -1, 0xc0f24425, 0x10000000); fprintf(stderr, "### call=1 errno=%u\n", res == -1 ? errno : 0); break; case 2: memcpy((void*)0x10000040, "\x0b\x75\xfb\x7f\x86\xb8\x71\x9d\x9c\xa1\xc0\x3b\xb4\x6e\x48\xf0\x8a\xb6\x50\x08\x5a\xc0\x62\xed\xe9\x13\xfc\xad\xbb\xaf\x4f\x90\xf5\xc0\x7b\xd0\xca\x1a\x07\x19\x60\x2e\xd7\x7b\x72\x93\xa5\x65\x5c\xf7\x1d\xd4\xc3\xa7\x94\x64\x8a\x20\xc2\x4c\x28\xa3\x5d\x11\x0e\xf0\x8f\x0e\x34\x11\xfc\x58\x06\xa7\x72\xc9\x5a\x7f\x25\x07\x36\x95\x0a\xb3", 84); res = syscall(SYS_ioctl, 0xffffff9c, 0xc0184432, 0x10000040); fprintf(stderr, "### call=2 errno=%u\n", res == -1 ? errno : 0); break; case 3: *(uint32_t*)0x100000c0 = 0; *(uint16_t*)0x100000c4 = 4; *(uint16_t*)0x100000c6 = 0xad; memcpy((void*)0x100000c8, "\x59\xf3\xc2\x20\x66\x37\xb3\xc4\x4c\x65\xff\x50\xeb\x44\x7c\x68\x00\xe7\xee\x19\xa6\x8b\x04\x23\x30\x87\xfd\x6c\x60\x81\xc9\xd7\x1a\xed\x1a\x53\x70\x30\x8c\x7a\xa0\x17\x8e\x01\x6e\xf4\x94\x0f\xdd\xa9\xe2\x75\x7b\x5c\xe9\xc0\x83\xb5\x54\x4c\x9f\x49\xf0\xc6\xea\xdb\xa9\xba\xfb\x91\x86\x94\x2a\x03\x1c\x4f\xcc\xcf\x4d\x1f\x65\x79\x49\xa5\x2c\x4b\x1b\xfd\x20\xa6\x29\xda\x67\xde\xc2\xa0\x78\x5b\xad\xdd\xd7\xe0\x87\x53\xc2\x71\xcb\x02\x65\xb8\x92\xe6\x36\xf9\xa6\x8a\x7b\x33\x19\x57\x6c\x7d\xb0\xd8\x5a\x84\x2f\x85\x22\xb0\xc9\xb8\x85\x75\x1f\xe8\x2a\x5d\x5d\x33\xc1\x44\x2b\x6f\xd1\xde\x1b\x09\x83\x3b\x74\xf2\x2d\x41\xd4\x8d\xef\x6a\xa5\x65\x9e\x2c\x7d\x90\x9f\xea\x2f\x80\x25\xa4\x55\x3c\xd9", 173); res = syscall(SYS_setsockopt, -1, 0x84, 0x13, 0x100000c0, 0xb5); fprintf(stderr, "### call=3 errno=%u\n", res == -1 ? errno : 0); break; case 4: res = syscall(SYS_fcntl, (intptr_t)r[0], 0, -1); fprintf(stderr, "### call=4 errno=%u\n", res == -1 ? errno : 0); if (res != -1) r[1] = res; break; case 5: *(uint32_t*)0x100001c0 = 0x20; res = syscall(SYS_getsockopt, (intptr_t)r[1], 0x84, 0x105, 0x10000180, 0x100001c0); fprintf(stderr, "### call=5 errno=%u\n", res == -1 ? errno : 0); break; case 6: *(uint32_t*)0x10000240 = 4; res = syscall(SYS_getsockopt, (intptr_t)r[1], 0x84, 0x1f, 0x10000200, 0x10000240); fprintf(stderr, "### call=6 errno=%u\n", res == -1 ? errno : 0); break; case 7: res = syscall(SYS_socket, 2, 3, 1); fprintf(stderr, "### call=7 errno=%u\n", res == -1 ? errno : 0); if (res != -1) r[2] = res; break; case 8: *(uint64_t*)0x10000280 = 0x7fff; *(uint64_t*)0x100002c0 = 2; res = syscall(SYS_copy_file_range, (intptr_t)r[1], 0x10000280, (intptr_t)r[2], 0x100002c0, 7ull, 0); fprintf(stderr, "### call=8 errno=%u\n", res == -1 ? errno : 0); break; case 9: *(uint32_t*)0x10000300 = 7; *(uint16_t*)0x10000304 = 8; *(uint16_t*)0x10000306 = 1; *(uint16_t*)0x10000308 = 0; *(uint16_t*)0x1000030a = 0x1000; *(uint16_t*)0x1000030c = 8; *(uint16_t*)0x1000030e = 4; *(uint16_t*)0x10000310 = 3; res = syscall(SYS_setsockopt, (intptr_t)r[2], 0x84, 0x14, 0x10000300, 0x12); fprintf(stderr, "### call=9 errno=%u\n", res == -1 ? errno : 0); break; case 10: *(uint8_t*)0x10000000 = -1; *(uint8_t*)0x10000001 = -1; *(uint8_t*)0x10000002 = -1; *(uint8_t*)0x10000003 = -1; *(uint8_t*)0x10000004 = -1; *(uint8_t*)0x10000005 = -1; *(uint8_t*)0x10000006 = 0xaa; *(uint8_t*)0x10000007 = 0xaa; *(uint8_t*)0x10000008 = 0xaa; *(uint8_t*)0x10000009 = 0xaa; *(uint8_t*)0x1000000a = 0xaa; *(uint8_t*)0x1000000b = 0xaa; *(uint16_t*)0x1000000c = htobe16(0x806); *(uint16_t*)0x1000000e = htobe16(6); *(uint16_t*)0x10000010 = htobe16(0x8035); *(uint8_t*)0x10000012 = 6; *(uint8_t*)0x10000013 = 1; *(uint16_t*)0x10000014 = htobe16(3); *(uint8_t*)0x10000016 = 0xaa; *(uint8_t*)0x10000017 = 0xaa; *(uint8_t*)0x10000018 = 0xaa; *(uint8_t*)0x10000019 = 0xaa; *(uint8_t*)0x1000001a = 0xaa; *(uint8_t*)0x1000001b = 0xaa; memcpy((void*)0x1000001c, "\x1d", 1); memcpy((void*)0x1000001d, "\x71\x3c\x34\xac\xc0\xec", 6); memcpy((void*)0x10000023, "\x8b\xf5\x44\xbb\xf8\xba\x5b\x80\x78\x20\x7d\x73\xf8\xc0\x34\xec", 16); (void)res; break; case 11: memcpy((void*)0x10000040, "\xf3\x0f\x58\x11\xc4\xe1\xa9\x68\xb4\xe9\xb8\xcf\x00\x00\x0f\x71\xe6\xff\x88\x71\xf9\x66\x0f\x38\x3d\xff\xf2\xdc\xf6\x2e\x2f\xd2\xae\x96\x00\x00\x00\x2e\x0f\x15\xeb\x0f\x01\xd0", 44); res = -1; errno = EFAULT; res = syz_execute_func(0x10000040); fprintf(stderr, "### call=11 errno=%u\n", res == -1 ? errno : 0); break; case 12: (void)res; break; } } int main(void) { syscall(SYS_mmap, 0x10000000, 0x1000000, 7, 0x1012, -1, 0); use_temporary_dir(); do_sandbox_none(); return 0; } :352:17: error: use of undeclared identifier 'SYS_copy_file_range' res = syscall(SYS_copy_file_range, (intptr_t)r[1], 0x10000280, (intptr_t)r[2], 0x100002c0, 7ull, 0); ^ 1 error generated. compiler invocation: clang [-o /tmp/syz-executor549212374 -DGOOS_freebsd=1 -DGOARCH_386=1 -DHOSTGOOS_freebsd=1 -x c - -m32 -O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wframe-larger-than=16384 -static -lc++ -Wno-overflow] --- FAIL: TestGenerate/freebsd/386/2 (1.10s) csource_test.go:123: opts: {Threaded:true Collide:true Repeat:true RepeatTimes:0 Procs:0 Sandbox:none Fault:false FaultCall:0 FaultNth:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false USB:false VhciInjection:false Wifi:false Sysctl:false UseTmpDir:true HandleSegv:false Repro:false Trace:false} program: r0 = kqueue() ioctl$DIOCADDSTATE(0xffffffffffffffff, 0xc0f24425, &(0x7f0000000000)="58c88fefee") ioctl$DIOCGETQSTATSV0(0xffffffffffffff9c, 0xc0184432, &(0x7f0000000040)="0b75fb7f86b8719d9ca1c03bb46e48f08ab650085ac062ede913fcadbbaf4f90f5c07bd0ca1a0719602ed77b7293a5655cf71dd4c3a794648a20c24c28a35d110ef08f0e3411fc5806a772c95a7f250736950ab3") setsockopt$inet_sctp_SCTP_AUTH_KEY(0xffffffffffffffff, 0x84, 0x13, &(0x7f00000000c0)={0x0, 0x4, 0xad, "59f3c2206637b3c44c65ff50eb447c6800e7ee19a68b04233087fd6c6081c9d71aed1a5370308c7aa0178e016ef4940fdda9e2757b5ce9c083b5544c9f49f0c6eadba9bafb9186942a031c4fcccf4d1f657949a52c4b1bfd20a629da67dec2a0785badddd7e08753c271cb0265b892e636f9a68a7b3319576c7db0d85a842f8522b0c9b885751fe82a5d5d33c1442b6fd1de1b09833b74f22d41d48def6aa5659e2c7d909fea2f8025a4553cd9"}, 0xb5) r1 = fcntl$dupfd(r0, 0x0, 0xffffffffffffffff) getsockopt$inet_sctp_SCTP_GET_ASSOC_ID_LIST(r1, 0x84, 0x105, &(0x7f0000000180)={0x7, [0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0]}, &(0x7f00000001c0)=0x20) getsockopt$inet_sctp_SCTP_RECVRCVINFO(r1, 0x84, 0x1f, &(0x7f0000000200), &(0x7f0000000240)=0x4) r2 = socket$inet(0x2, 0x3, 0x1) copy_file_range(r1, &(0x7f0000000280)=0x7fff, r2, &(0x7f00000002c0)=0x2, 0x7, 0x0) setsockopt$inet_sctp_SCTP_HMAC_IDENT(r2, 0x84, 0x14, &(0x7f0000000300)={0x7, [0x8, 0x1, 0x0, 0x1000, 0x8, 0x4, 0x3]}, 0x12) syz_emit_ethernet(0x33, &(0x7f0000000000)={@broadcast, @local, [], {@arp={0x806, @generic={0x6, 0x8035, 0x6, 0x1, 0x3, @local, "1d", @random="713c34acc0ec", "8bf544bbf8ba5b8078207d73f8c034ec"}}}}) syz_execute_func(&(0x7f0000000040)="f30f5811c4e1a968b4e9b8cf00000f71e6ff8871f9660f383dfff2dcf62e2fd2ae960000002e0f15eb0f01d0") syz_extract_tcp_res(&(0x7f0000000080), 0xffffffff, 0x1) csource_test.go:124: 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 #include #include #include #include #include #include #include static void kill_and_wait(int pid, int* status) { kill(pid, SIGKILL); while (waitpid(-1, status, 0) != pid) { } } static void sleep_ms(uint64_t ms) { usleep(ms * 1000); } static uint64_t current_time_ms(void) { struct timespec ts; if (clock_gettime(CLOCK_MONOTONIC, &ts)) exit(1); return (uint64_t)ts.tv_sec * 1000 + (uint64_t)ts.tv_nsec / 1000000; } static void use_temporary_dir(void) { char tmpdir_template[] = "./syzkaller.XXXXXX"; char* tmpdir = mkdtemp(tmpdir_template); if (!tmpdir) exit(1); if (chmod(tmpdir, 0777)) exit(1); if (chdir(tmpdir)) exit(1); } static void __attribute__((noinline)) remove_dir(const char* dir) { DIR* dp = opendir(dir); if (dp == NULL) { if (errno == EACCES) { if (rmdir(dir)) exit(1); return; } exit(1); } struct dirent* ep = 0; while ((ep = readdir(dp))) { if (strcmp(ep->d_name, ".") == 0 || strcmp(ep->d_name, "..") == 0) continue; char filename[FILENAME_MAX]; snprintf(filename, sizeof(filename), "%s/%s", dir, ep->d_name); struct stat st; if (lstat(filename, &st)) exit(1); if (S_ISDIR(st.st_mode)) { remove_dir(filename); continue; } if (unlink(filename)) exit(1); } closedir(dp); if (rmdir(dir)) exit(1); } static void thread_start(void* (*fn)(void*), void* arg) { pthread_t th; pthread_attr_t attr; pthread_attr_init(&attr); pthread_attr_setstacksize(&attr, 128 << 10); int i = 0; for (; i < 100; i++) { if (pthread_create(&th, &attr, fn, arg) == 0) { pthread_attr_destroy(&attr); return; } if (errno == EAGAIN) { usleep(50); continue; } break; } exit(1); } typedef struct { pthread_mutex_t mu; pthread_cond_t cv; int state; } event_t; static void event_init(event_t* ev) { if (pthread_mutex_init(&ev->mu, 0)) exit(1); if (pthread_cond_init(&ev->cv, 0)) exit(1); ev->state = 0; } static void event_reset(event_t* ev) { ev->state = 0; } static void event_set(event_t* ev) { pthread_mutex_lock(&ev->mu); if (ev->state) exit(1); ev->state = 1; pthread_mutex_unlock(&ev->mu); pthread_cond_broadcast(&ev->cv); } static void event_wait(event_t* ev) { pthread_mutex_lock(&ev->mu); while (!ev->state) pthread_cond_wait(&ev->cv, &ev->mu); pthread_mutex_unlock(&ev->mu); } static int event_isset(event_t* ev) { pthread_mutex_lock(&ev->mu); int res = ev->state; pthread_mutex_unlock(&ev->mu); return res; } static int event_timedwait(event_t* ev, uint64_t timeout) { uint64_t start = current_time_ms(); uint64_t now = start; pthread_mutex_lock(&ev->mu); for (;;) { if (ev->state) break; uint64_t remain = timeout - (now - start); struct timespec ts; ts.tv_sec = remain / 1000; ts.tv_nsec = (remain % 1000) * 1000 * 1000; pthread_cond_timedwait(&ev->cv, &ev->mu, &ts); now = current_time_ms(); if (now - start > timeout) break; } int res = ev->state; pthread_mutex_unlock(&ev->mu); return res; } static void sandbox_common() { struct rlimit rlim; rlim.rlim_cur = rlim.rlim_max = 128 << 20; setrlimit(RLIMIT_AS, &rlim); rlim.rlim_cur = rlim.rlim_max = 8 << 20; setrlimit(RLIMIT_MEMLOCK, &rlim); rlim.rlim_cur = rlim.rlim_max = 1 << 20; setrlimit(RLIMIT_FSIZE, &rlim); rlim.rlim_cur = rlim.rlim_max = 1 << 20; setrlimit(RLIMIT_STACK, &rlim); rlim.rlim_cur = rlim.rlim_max = 0; setrlimit(RLIMIT_CORE, &rlim); rlim.rlim_cur = rlim.rlim_max = 256; setrlimit(RLIMIT_NOFILE, &rlim); } static void loop(); static int do_sandbox_none(void) { sandbox_common(); loop(); return 0; } static long syz_execute_func(volatile long text) { ((void (*)(void))(text))(); return 0; } struct thread_t { int created, call; event_t ready, done; }; static struct thread_t threads[16]; static void execute_call(int call); static int running; static void* thr(void* arg) { struct thread_t* th = (struct thread_t*)arg; for (;;) { event_wait(&th->ready); event_reset(&th->ready); execute_call(th->call); __atomic_fetch_sub(&running, 1, __ATOMIC_RELAXED); event_set(&th->done); } return 0; } static void execute_one(void) { int i, call, thread; int collide = 0; again: for (call = 0; call < 13; call++) { for (thread = 0; thread < (int)(sizeof(threads) / sizeof(threads[0])); thread++) { struct thread_t* th = &threads[thread]; if (!th->created) { th->created = 1; event_init(&th->ready); event_init(&th->done); event_set(&th->done); thread_start(thr, th); } if (!event_isset(&th->done)) continue; event_reset(&th->done); th->call = call; __atomic_fetch_add(&running, 1, __ATOMIC_RELAXED); event_set(&th->ready); if (collide && (call % 2) == 0) break; event_timedwait(&th->done, 45); break; } } for (i = 0; i < 100 && __atomic_load_n(&running, __ATOMIC_RELAXED); i++) sleep_ms(1); if (!collide) { collide = 1; goto again; } } static void execute_one(void); #define WAIT_FLAGS 0 static void loop(void) { int iter = 0; for (;; iter++) { char cwdbuf[32]; sprintf(cwdbuf, "./%d", iter); if (mkdir(cwdbuf, 0777)) exit(1); int pid = fork(); if (pid < 0) exit(1); if (pid == 0) { if (chdir(cwdbuf)) exit(1); execute_one(); exit(0); } int status = 0; uint64_t start = current_time_ms(); for (;;) { if (waitpid(-1, &status, WNOHANG | WAIT_FLAGS) == pid) break; sleep_ms(1); if (current_time_ms() - start < 5 * 1000) continue; kill_and_wait(pid, &status); break; } remove_dir(cwdbuf); } } uint64_t r[3] = {0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff}; void execute_call(int call) { intptr_t res = 0; switch (call) { case 0: res = syscall(SYS_kqueue); if (res != -1) r[0] = res; break; case 1: memcpy((void*)0x10000000, "\x58\xc8\x8f\xef\xee", 5); syscall(SYS_ioctl, -1, 0xc0f24425, 0x10000000); break; case 2: memcpy((void*)0x10000040, "\x0b\x75\xfb\x7f\x86\xb8\x71\x9d\x9c\xa1\xc0\x3b\xb4\x6e\x48\xf0\x8a\xb6\x50\x08\x5a\xc0\x62\xed\xe9\x13\xfc\xad\xbb\xaf\x4f\x90\xf5\xc0\x7b\xd0\xca\x1a\x07\x19\x60\x2e\xd7\x7b\x72\x93\xa5\x65\x5c\xf7\x1d\xd4\xc3\xa7\x94\x64\x8a\x20\xc2\x4c\x28\xa3\x5d\x11\x0e\xf0\x8f\x0e\x34\x11\xfc\x58\x06\xa7\x72\xc9\x5a\x7f\x25\x07\x36\x95\x0a\xb3", 84); syscall(SYS_ioctl, 0xffffff9c, 0xc0184432, 0x10000040); break; case 3: *(uint32_t*)0x100000c0 = 0; *(uint16_t*)0x100000c4 = 4; *(uint16_t*)0x100000c6 = 0xad; memcpy((void*)0x100000c8, "\x59\xf3\xc2\x20\x66\x37\xb3\xc4\x4c\x65\xff\x50\xeb\x44\x7c\x68\x00\xe7\xee\x19\xa6\x8b\x04\x23\x30\x87\xfd\x6c\x60\x81\xc9\xd7\x1a\xed\x1a\x53\x70\x30\x8c\x7a\xa0\x17\x8e\x01\x6e\xf4\x94\x0f\xdd\xa9\xe2\x75\x7b\x5c\xe9\xc0\x83\xb5\x54\x4c\x9f\x49\xf0\xc6\xea\xdb\xa9\xba\xfb\x91\x86\x94\x2a\x03\x1c\x4f\xcc\xcf\x4d\x1f\x65\x79\x49\xa5\x2c\x4b\x1b\xfd\x20\xa6\x29\xda\x67\xde\xc2\xa0\x78\x5b\xad\xdd\xd7\xe0\x87\x53\xc2\x71\xcb\x02\x65\xb8\x92\xe6\x36\xf9\xa6\x8a\x7b\x33\x19\x57\x6c\x7d\xb0\xd8\x5a\x84\x2f\x85\x22\xb0\xc9\xb8\x85\x75\x1f\xe8\x2a\x5d\x5d\x33\xc1\x44\x2b\x6f\xd1\xde\x1b\x09\x83\x3b\x74\xf2\x2d\x41\xd4\x8d\xef\x6a\xa5\x65\x9e\x2c\x7d\x90\x9f\xea\x2f\x80\x25\xa4\x55\x3c\xd9", 173); syscall(SYS_setsockopt, -1, 0x84, 0x13, 0x100000c0, 0xb5); break; case 4: res = syscall(SYS_fcntl, (intptr_t)r[0], 0, -1); if (res != -1) r[1] = res; break; case 5: *(uint32_t*)0x100001c0 = 0x20; syscall(SYS_getsockopt, (intptr_t)r[1], 0x84, 0x105, 0x10000180, 0x100001c0); break; case 6: *(uint32_t*)0x10000240 = 4; syscall(SYS_getsockopt, (intptr_t)r[1], 0x84, 0x1f, 0x10000200, 0x10000240); break; case 7: res = syscall(SYS_socket, 2, 3, 1); if (res != -1) r[2] = res; break; case 8: *(uint64_t*)0x10000280 = 0x7fff; *(uint64_t*)0x100002c0 = 2; syscall(SYS_copy_file_range, (intptr_t)r[1], 0x10000280, (intptr_t)r[2], 0x100002c0, 7ull, 0); break; case 9: *(uint32_t*)0x10000300 = 7; *(uint16_t*)0x10000304 = 8; *(uint16_t*)0x10000306 = 1; *(uint16_t*)0x10000308 = 0; *(uint16_t*)0x1000030a = 0x1000; *(uint16_t*)0x1000030c = 8; *(uint16_t*)0x1000030e = 4; *(uint16_t*)0x10000310 = 3; syscall(SYS_setsockopt, (intptr_t)r[2], 0x84, 0x14, 0x10000300, 0x12); break; case 10: *(uint8_t*)0x10000000 = -1; *(uint8_t*)0x10000001 = -1; *(uint8_t*)0x10000002 = -1; *(uint8_t*)0x10000003 = -1; *(uint8_t*)0x10000004 = -1; *(uint8_t*)0x10000005 = -1; *(uint8_t*)0x10000006 = 0xaa; *(uint8_t*)0x10000007 = 0xaa; *(uint8_t*)0x10000008 = 0xaa; *(uint8_t*)0x10000009 = 0xaa; *(uint8_t*)0x1000000a = 0xaa; *(uint8_t*)0x1000000b = 0xaa; *(uint16_t*)0x1000000c = htobe16(0x806); *(uint16_t*)0x1000000e = htobe16(6); *(uint16_t*)0x10000010 = htobe16(0x8035); *(uint8_t*)0x10000012 = 6; *(uint8_t*)0x10000013 = 1; *(uint16_t*)0x10000014 = htobe16(3); *(uint8_t*)0x10000016 = 0xaa; *(uint8_t*)0x10000017 = 0xaa; *(uint8_t*)0x10000018 = 0xaa; *(uint8_t*)0x10000019 = 0xaa; *(uint8_t*)0x1000001a = 0xaa; *(uint8_t*)0x1000001b = 0xaa; memcpy((void*)0x1000001c, "\x1d", 1); memcpy((void*)0x1000001d, "\x71\x3c\x34\xac\xc0\xec", 6); memcpy((void*)0x10000023, "\x8b\xf5\x44\xbb\xf8\xba\x5b\x80\x78\x20\x7d\x73\xf8\xc0\x34\xec", 16); break; case 11: memcpy((void*)0x10000040, "\xf3\x0f\x58\x11\xc4\xe1\xa9\x68\xb4\xe9\xb8\xcf\x00\x00\x0f\x71\xe6\xff\x88\x71\xf9\x66\x0f\x38\x3d\xff\xf2\xdc\xf6\x2e\x2f\xd2\xae\x96\x00\x00\x00\x2e\x0f\x15\xeb\x0f\x01\xd0", 44); syz_execute_func(0x10000040); break; case 12: break; } } int main(void) { syscall(SYS_mmap, 0x10000000, 0x1000000, 7, 0x1012, -1, 0); use_temporary_dir(); do_sandbox_none(); return 0; } :351:11: error: use of undeclared identifier 'SYS_copy_file_range' syscall(SYS_copy_file_range, (intptr_t)r[1], 0x10000280, (intptr_t)r[2], 0x100002c0, 7ull, 0); ^ 1 error generated. compiler invocation: clang [-o /tmp/syz-executor081250877 -DGOOS_freebsd=1 -DGOARCH_386=1 -DHOSTGOOS_freebsd=1 -x c - -m32 -O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wframe-larger-than=16384 -static -lc++ -Wno-overflow] --- FAIL: TestGenerate/freebsd/386/4 (1.19s) csource_test.go:123: opts: {Threaded:true Collide:false Repeat:true RepeatTimes:10 Procs:0 Sandbox:none Fault:false FaultCall:0 FaultNth:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false USB:false VhciInjection:false Wifi:false Sysctl:false UseTmpDir:true HandleSegv:false Repro:false Trace:false} program: r0 = kqueue() ioctl$DIOCADDSTATE(0xffffffffffffffff, 0xc0f24425, &(0x7f0000000000)="58c88fefee") ioctl$DIOCGETQSTATSV0(0xffffffffffffff9c, 0xc0184432, &(0x7f0000000040)="0b75fb7f86b8719d9ca1c03bb46e48f08ab650085ac062ede913fcadbbaf4f90f5c07bd0ca1a0719602ed77b7293a5655cf71dd4c3a794648a20c24c28a35d110ef08f0e3411fc5806a772c95a7f250736950ab3") setsockopt$inet_sctp_SCTP_AUTH_KEY(0xffffffffffffffff, 0x84, 0x13, &(0x7f00000000c0)={0x0, 0x4, 0xad, "59f3c2206637b3c44c65ff50eb447c6800e7ee19a68b04233087fd6c6081c9d71aed1a5370308c7aa0178e016ef4940fdda9e2757b5ce9c083b5544c9f49f0c6eadba9bafb9186942a031c4fcccf4d1f657949a52c4b1bfd20a629da67dec2a0785badddd7e08753c271cb0265b892e636f9a68a7b3319576c7db0d85a842f8522b0c9b885751fe82a5d5d33c1442b6fd1de1b09833b74f22d41d48def6aa5659e2c7d909fea2f8025a4553cd9"}, 0xb5) r1 = fcntl$dupfd(r0, 0x0, 0xffffffffffffffff) getsockopt$inet_sctp_SCTP_GET_ASSOC_ID_LIST(r1, 0x84, 0x105, &(0x7f0000000180)={0x7, [0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0]}, &(0x7f00000001c0)=0x20) getsockopt$inet_sctp_SCTP_RECVRCVINFO(r1, 0x84, 0x1f, &(0x7f0000000200), &(0x7f0000000240)=0x4) r2 = socket$inet(0x2, 0x3, 0x1) copy_file_range(r1, &(0x7f0000000280)=0x7fff, r2, &(0x7f00000002c0)=0x2, 0x7, 0x0) setsockopt$inet_sctp_SCTP_HMAC_IDENT(r2, 0x84, 0x14, &(0x7f0000000300)={0x7, [0x8, 0x1, 0x0, 0x1000, 0x8, 0x4, 0x3]}, 0x12) syz_emit_ethernet(0x33, &(0x7f0000000000)={@broadcast, @local, [], {@arp={0x806, @generic={0x6, 0x8035, 0x6, 0x1, 0x3, @local, "1d", @random="713c34acc0ec", "8bf544bbf8ba5b8078207d73f8c034ec"}}}}) syz_execute_func(&(0x7f0000000040)="f30f5811c4e1a968b4e9b8cf00000f71e6ff8871f9660f383dfff2dcf62e2fd2ae960000002e0f15eb0f01d0") syz_extract_tcp_res(&(0x7f0000000080), 0xffffffff, 0x1) csource_test.go:124: 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 #include #include #include #include #include #include #include static void kill_and_wait(int pid, int* status) { kill(pid, SIGKILL); while (waitpid(-1, status, 0) != pid) { } } static void sleep_ms(uint64_t ms) { usleep(ms * 1000); } static uint64_t current_time_ms(void) { struct timespec ts; if (clock_gettime(CLOCK_MONOTONIC, &ts)) exit(1); return (uint64_t)ts.tv_sec * 1000 + (uint64_t)ts.tv_nsec / 1000000; } static void use_temporary_dir(void) { char tmpdir_template[] = "./syzkaller.XXXXXX"; char* tmpdir = mkdtemp(tmpdir_template); if (!tmpdir) exit(1); if (chmod(tmpdir, 0777)) exit(1); if (chdir(tmpdir)) exit(1); } static void __attribute__((noinline)) remove_dir(const char* dir) { DIR* dp = opendir(dir); if (dp == NULL) { if (errno == EACCES) { if (rmdir(dir)) exit(1); return; } exit(1); } struct dirent* ep = 0; while ((ep = readdir(dp))) { if (strcmp(ep->d_name, ".") == 0 || strcmp(ep->d_name, "..") == 0) continue; char filename[FILENAME_MAX]; snprintf(filename, sizeof(filename), "%s/%s", dir, ep->d_name); struct stat st; if (lstat(filename, &st)) exit(1); if (S_ISDIR(st.st_mode)) { remove_dir(filename); continue; } if (unlink(filename)) exit(1); } closedir(dp); if (rmdir(dir)) exit(1); } static void thread_start(void* (*fn)(void*), void* arg) { pthread_t th; pthread_attr_t attr; pthread_attr_init(&attr); pthread_attr_setstacksize(&attr, 128 << 10); int i = 0; for (; i < 100; i++) { if (pthread_create(&th, &attr, fn, arg) == 0) { pthread_attr_destroy(&attr); return; } if (errno == EAGAIN) { usleep(50); continue; } break; } exit(1); } typedef struct { pthread_mutex_t mu; pthread_cond_t cv; int state; } event_t; static void event_init(event_t* ev) { if (pthread_mutex_init(&ev->mu, 0)) exit(1); if (pthread_cond_init(&ev->cv, 0)) exit(1); ev->state = 0; } static void event_reset(event_t* ev) { ev->state = 0; } static void event_set(event_t* ev) { pthread_mutex_lock(&ev->mu); if (ev->state) exit(1); ev->state = 1; pthread_mutex_unlock(&ev->mu); pthread_cond_broadcast(&ev->cv); } static void event_wait(event_t* ev) { pthread_mutex_lock(&ev->mu); while (!ev->state) pthread_cond_wait(&ev->cv, &ev->mu); pthread_mutex_unlock(&ev->mu); } static int event_isset(event_t* ev) { pthread_mutex_lock(&ev->mu); int res = ev->state; pthread_mutex_unlock(&ev->mu); return res; } static int event_timedwait(event_t* ev, uint64_t timeout) { uint64_t start = current_time_ms(); uint64_t now = start; pthread_mutex_lock(&ev->mu); for (;;) { if (ev->state) break; uint64_t remain = timeout - (now - start); struct timespec ts; ts.tv_sec = remain / 1000; ts.tv_nsec = (remain % 1000) * 1000 * 1000; pthread_cond_timedwait(&ev->cv, &ev->mu, &ts); now = current_time_ms(); if (now - start > timeout) break; } int res = ev->state; pthread_mutex_unlock(&ev->mu); return res; } static void sandbox_common() { struct rlimit rlim; rlim.rlim_cur = rlim.rlim_max = 128 << 20; setrlimit(RLIMIT_AS, &rlim); rlim.rlim_cur = rlim.rlim_max = 8 << 20; setrlimit(RLIMIT_MEMLOCK, &rlim); rlim.rlim_cur = rlim.rlim_max = 1 << 20; setrlimit(RLIMIT_FSIZE, &rlim); rlim.rlim_cur = rlim.rlim_max = 1 << 20; setrlimit(RLIMIT_STACK, &rlim); rlim.rlim_cur = rlim.rlim_max = 0; setrlimit(RLIMIT_CORE, &rlim); rlim.rlim_cur = rlim.rlim_max = 256; setrlimit(RLIMIT_NOFILE, &rlim); } static void loop(); static int do_sandbox_none(void) { sandbox_common(); loop(); return 0; } static long syz_execute_func(volatile long text) { ((void (*)(void))(text))(); return 0; } struct thread_t { int created, call; event_t ready, done; }; static struct thread_t threads[16]; static void execute_call(int call); static int running; static void* thr(void* arg) { struct thread_t* th = (struct thread_t*)arg; for (;;) { event_wait(&th->ready); event_reset(&th->ready); execute_call(th->call); __atomic_fetch_sub(&running, 1, __ATOMIC_RELAXED); event_set(&th->done); } return 0; } static void execute_one(void) { int i, call, thread; for (call = 0; call < 13; call++) { for (thread = 0; thread < (int)(sizeof(threads) / sizeof(threads[0])); thread++) { struct thread_t* th = &threads[thread]; if (!th->created) { th->created = 1; event_init(&th->ready); event_init(&th->done); event_set(&th->done); thread_start(thr, th); } if (!event_isset(&th->done)) continue; event_reset(&th->done); th->call = call; __atomic_fetch_add(&running, 1, __ATOMIC_RELAXED); event_set(&th->ready); event_timedwait(&th->done, 45); break; } } for (i = 0; i < 100 && __atomic_load_n(&running, __ATOMIC_RELAXED); i++) sleep_ms(1); } static void execute_one(void); #define WAIT_FLAGS 0 static void loop(void) { int iter = 0; for (; iter < 10; iter++) { char cwdbuf[32]; sprintf(cwdbuf, "./%d", iter); if (mkdir(cwdbuf, 0777)) exit(1); int pid = fork(); if (pid < 0) exit(1); if (pid == 0) { if (chdir(cwdbuf)) exit(1); execute_one(); exit(0); } int status = 0; uint64_t start = current_time_ms(); for (;;) { if (waitpid(-1, &status, WNOHANG | WAIT_FLAGS) == pid) break; sleep_ms(1); if (current_time_ms() - start < 5 * 1000) continue; kill_and_wait(pid, &status); break; } remove_dir(cwdbuf); } } uint64_t r[3] = {0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff}; void execute_call(int call) { intptr_t res = 0; switch (call) { case 0: res = syscall(SYS_kqueue); if (res != -1) r[0] = res; break; case 1: memcpy((void*)0x10000000, "\x58\xc8\x8f\xef\xee", 5); syscall(SYS_ioctl, -1, 0xc0f24425, 0x10000000); break; case 2: memcpy((void*)0x10000040, "\x0b\x75\xfb\x7f\x86\xb8\x71\x9d\x9c\xa1\xc0\x3b\xb4\x6e\x48\xf0\x8a\xb6\x50\x08\x5a\xc0\x62\xed\xe9\x13\xfc\xad\xbb\xaf\x4f\x90\xf5\xc0\x7b\xd0\xca\x1a\x07\x19\x60\x2e\xd7\x7b\x72\x93\xa5\x65\x5c\xf7\x1d\xd4\xc3\xa7\x94\x64\x8a\x20\xc2\x4c\x28\xa3\x5d\x11\x0e\xf0\x8f\x0e\x34\x11\xfc\x58\x06\xa7\x72\xc9\x5a\x7f\x25\x07\x36\x95\x0a\xb3", 84); syscall(SYS_ioctl, 0xffffff9c, 0xc0184432, 0x10000040); break; case 3: *(uint32_t*)0x100000c0 = 0; *(uint16_t*)0x100000c4 = 4; *(uint16_t*)0x100000c6 = 0xad; memcpy((void*)0x100000c8, "\x59\xf3\xc2\x20\x66\x37\xb3\xc4\x4c\x65\xff\x50\xeb\x44\x7c\x68\x00\xe7\xee\x19\xa6\x8b\x04\x23\x30\x87\xfd\x6c\x60\x81\xc9\xd7\x1a\xed\x1a\x53\x70\x30\x8c\x7a\xa0\x17\x8e\x01\x6e\xf4\x94\x0f\xdd\xa9\xe2\x75\x7b\x5c\xe9\xc0\x83\xb5\x54\x4c\x9f\x49\xf0\xc6\xea\xdb\xa9\xba\xfb\x91\x86\x94\x2a\x03\x1c\x4f\xcc\xcf\x4d\x1f\x65\x79\x49\xa5\x2c\x4b\x1b\xfd\x20\xa6\x29\xda\x67\xde\xc2\xa0\x78\x5b\xad\xdd\xd7\xe0\x87\x53\xc2\x71\xcb\x02\x65\xb8\x92\xe6\x36\xf9\xa6\x8a\x7b\x33\x19\x57\x6c\x7d\xb0\xd8\x5a\x84\x2f\x85\x22\xb0\xc9\xb8\x85\x75\x1f\xe8\x2a\x5d\x5d\x33\xc1\x44\x2b\x6f\xd1\xde\x1b\x09\x83\x3b\x74\xf2\x2d\x41\xd4\x8d\xef\x6a\xa5\x65\x9e\x2c\x7d\x90\x9f\xea\x2f\x80\x25\xa4\x55\x3c\xd9", 173); syscall(SYS_setsockopt, -1, 0x84, 0x13, 0x100000c0, 0xb5); break; case 4: res = syscall(SYS_fcntl, (intptr_t)r[0], 0, -1); if (res != -1) r[1] = res; break; case 5: *(uint32_t*)0x100001c0 = 0x20; syscall(SYS_getsockopt, (intptr_t)r[1], 0x84, 0x105, 0x10000180, 0x100001c0); break; case 6: *(uint32_t*)0x10000240 = 4; syscall(SYS_getsockopt, (intptr_t)r[1], 0x84, 0x1f, 0x10000200, 0x10000240); break; case 7: res = syscall(SYS_socket, 2, 3, 1); if (res != -1) r[2] = res; break; case 8: *(uint64_t*)0x10000280 = 0x7fff; *(uint64_t*)0x100002c0 = 2; syscall(SYS_copy_file_range, (intptr_t)r[1], 0x10000280, (intptr_t)r[2], 0x100002c0, 7ull, 0); break; case 9: *(uint32_t*)0x10000300 = 7; *(uint16_t*)0x10000304 = 8; *(uint16_t*)0x10000306 = 1; *(uint16_t*)0x10000308 = 0; *(uint16_t*)0x1000030a = 0x1000; *(uint16_t*)0x1000030c = 8; *(uint16_t*)0x1000030e = 4; *(uint16_t*)0x10000310 = 3; syscall(SYS_setsockopt, (intptr_t)r[2], 0x84, 0x14, 0x10000300, 0x12); break; case 10: *(uint8_t*)0x10000000 = -1; *(uint8_t*)0x10000001 = -1; *(uint8_t*)0x10000002 = -1; *(uint8_t*)0x10000003 = -1; *(uint8_t*)0x10000004 = -1; *(uint8_t*)0x10000005 = -1; *(uint8_t*)0x10000006 = 0xaa; *(uint8_t*)0x10000007 = 0xaa; *(uint8_t*)0x10000008 = 0xaa; *(uint8_t*)0x10000009 = 0xaa; *(uint8_t*)0x1000000a = 0xaa; *(uint8_t*)0x1000000b = 0xaa; *(uint16_t*)0x1000000c = htobe16(0x806); *(uint16_t*)0x1000000e = htobe16(6); *(uint16_t*)0x10000010 = htobe16(0x8035); *(uint8_t*)0x10000012 = 6; *(uint8_t*)0x10000013 = 1; *(uint16_t*)0x10000014 = htobe16(3); *(uint8_t*)0x10000016 = 0xaa; *(uint8_t*)0x10000017 = 0xaa; *(uint8_t*)0x10000018 = 0xaa; *(uint8_t*)0x10000019 = 0xaa; *(uint8_t*)0x1000001a = 0xaa; *(uint8_t*)0x1000001b = 0xaa; memcpy((void*)0x1000001c, "\x1d", 1); memcpy((void*)0x1000001d, "\x71\x3c\x34\xac\xc0\xec", 6); memcpy((void*)0x10000023, "\x8b\xf5\x44\xbb\xf8\xba\x5b\x80\x78\x20\x7d\x73\xf8\xc0\x34\xec", 16); break; case 11: memcpy((void*)0x10000040, "\xf3\x0f\x58\x11\xc4\xe1\xa9\x68\xb4\xe9\xb8\xcf\x00\x00\x0f\x71\xe6\xff\x88\x71\xf9\x66\x0f\x38\x3d\xff\xf2\xdc\xf6\x2e\x2f\xd2\xae\x96\x00\x00\x00\x2e\x0f\x15\xeb\x0f\x01\xd0", 44); syz_execute_func(0x10000040); break; case 12: break; } } int main(void) { syscall(SYS_mmap, 0x10000000, 0x1000000, 7, 0x1012, -1, 0); use_temporary_dir(); do_sandbox_none(); return 0; } :343:11: error: use of undeclared identifier 'SYS_copy_file_range' syscall(SYS_copy_file_range, (intptr_t)r[1], 0x10000280, (intptr_t)r[2], 0x100002c0, 7ull, 0); ^ 1 error generated. compiler invocation: clang [-o /tmp/syz-executor901878647 -DGOOS_freebsd=1 -DGOARCH_386=1 -DHOSTGOOS_freebsd=1 -x c - -m32 -O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wframe-larger-than=16384 -static -lc++ -Wno-overflow] --- FAIL: TestGenerate/freebsd/386/7 (1.51s) csource_test.go:123: opts: {Threaded:true Collide:false Repeat:true RepeatTimes:0 Procs:0 Sandbox: Fault:false FaultCall:0 FaultNth:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false USB:false VhciInjection:false Wifi:false Sysctl:false UseTmpDir:true HandleSegv:false Repro:false Trace:false} program: r0 = kqueue() ioctl$DIOCADDSTATE(0xffffffffffffffff, 0xc0f24425, &(0x7f0000000000)="58c88fefee") ioctl$DIOCGETQSTATSV0(0xffffffffffffff9c, 0xc0184432, &(0x7f0000000040)="0b75fb7f86b8719d9ca1c03bb46e48f08ab650085ac062ede913fcadbbaf4f90f5c07bd0ca1a0719602ed77b7293a5655cf71dd4c3a794648a20c24c28a35d110ef08f0e3411fc5806a772c95a7f250736950ab3") setsockopt$inet_sctp_SCTP_AUTH_KEY(0xffffffffffffffff, 0x84, 0x13, &(0x7f00000000c0)={0x0, 0x4, 0xad, "59f3c2206637b3c44c65ff50eb447c6800e7ee19a68b04233087fd6c6081c9d71aed1a5370308c7aa0178e016ef4940fdda9e2757b5ce9c083b5544c9f49f0c6eadba9bafb9186942a031c4fcccf4d1f657949a52c4b1bfd20a629da67dec2a0785badddd7e08753c271cb0265b892e636f9a68a7b3319576c7db0d85a842f8522b0c9b885751fe82a5d5d33c1442b6fd1de1b09833b74f22d41d48def6aa5659e2c7d909fea2f8025a4553cd9"}, 0xb5) r1 = fcntl$dupfd(r0, 0x0, 0xffffffffffffffff) getsockopt$inet_sctp_SCTP_GET_ASSOC_ID_LIST(r1, 0x84, 0x105, &(0x7f0000000180)={0x7, [0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0]}, &(0x7f00000001c0)=0x20) getsockopt$inet_sctp_SCTP_RECVRCVINFO(r1, 0x84, 0x1f, &(0x7f0000000200), &(0x7f0000000240)=0x4) r2 = socket$inet(0x2, 0x3, 0x1) copy_file_range(r1, &(0x7f0000000280)=0x7fff, r2, &(0x7f00000002c0)=0x2, 0x7, 0x0) setsockopt$inet_sctp_SCTP_HMAC_IDENT(r2, 0x84, 0x14, &(0x7f0000000300)={0x7, [0x8, 0x1, 0x0, 0x1000, 0x8, 0x4, 0x3]}, 0x12) syz_emit_ethernet(0x33, &(0x7f0000000000)={@broadcast, @local, [], {@arp={0x806, @generic={0x6, 0x8035, 0x6, 0x1, 0x3, @local, "1d", @random="713c34acc0ec", "8bf544bbf8ba5b8078207d73f8c034ec"}}}}) syz_execute_func(&(0x7f0000000040)="f30f5811c4e1a968b4e9b8cf00000f71e6ff8871f9660f383dfff2dcf62e2fd2ae960000002e0f15eb0f01d0") syz_extract_tcp_res(&(0x7f0000000080), 0xffffffff, 0x1) csource_test.go:124: 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 #include #include #include #include #include #include static void kill_and_wait(int pid, int* status) { kill(pid, SIGKILL); while (waitpid(-1, status, 0) != pid) { } } static void sleep_ms(uint64_t ms) { usleep(ms * 1000); } static uint64_t current_time_ms(void) { struct timespec ts; if (clock_gettime(CLOCK_MONOTONIC, &ts)) exit(1); return (uint64_t)ts.tv_sec * 1000 + (uint64_t)ts.tv_nsec / 1000000; } static void use_temporary_dir(void) { char tmpdir_template[] = "./syzkaller.XXXXXX"; char* tmpdir = mkdtemp(tmpdir_template); if (!tmpdir) exit(1); if (chmod(tmpdir, 0777)) exit(1); if (chdir(tmpdir)) exit(1); } static void __attribute__((noinline)) remove_dir(const char* dir) { DIR* dp = opendir(dir); if (dp == NULL) { if (errno == EACCES) { if (rmdir(dir)) exit(1); return; } exit(1); } struct dirent* ep = 0; while ((ep = readdir(dp))) { if (strcmp(ep->d_name, ".") == 0 || strcmp(ep->d_name, "..") == 0) continue; char filename[FILENAME_MAX]; snprintf(filename, sizeof(filename), "%s/%s", dir, ep->d_name); struct stat st; if (lstat(filename, &st)) exit(1); if (S_ISDIR(st.st_mode)) { remove_dir(filename); continue; } if (unlink(filename)) exit(1); } closedir(dp); if (rmdir(dir)) exit(1); } static void thread_start(void* (*fn)(void*), void* arg) { pthread_t th; pthread_attr_t attr; pthread_attr_init(&attr); pthread_attr_setstacksize(&attr, 128 << 10); int i = 0; for (; i < 100; i++) { if (pthread_create(&th, &attr, fn, arg) == 0) { pthread_attr_destroy(&attr); return; } if (errno == EAGAIN) { usleep(50); continue; } break; } exit(1); } typedef struct { pthread_mutex_t mu; pthread_cond_t cv; int state; } event_t; static void event_init(event_t* ev) { if (pthread_mutex_init(&ev->mu, 0)) exit(1); if (pthread_cond_init(&ev->cv, 0)) exit(1); ev->state = 0; } static void event_reset(event_t* ev) { ev->state = 0; } static void event_set(event_t* ev) { pthread_mutex_lock(&ev->mu); if (ev->state) exit(1); ev->state = 1; pthread_mutex_unlock(&ev->mu); pthread_cond_broadcast(&ev->cv); } static void event_wait(event_t* ev) { pthread_mutex_lock(&ev->mu); while (!ev->state) pthread_cond_wait(&ev->cv, &ev->mu); pthread_mutex_unlock(&ev->mu); } static int event_isset(event_t* ev) { pthread_mutex_lock(&ev->mu); int res = ev->state; pthread_mutex_unlock(&ev->mu); return res; } static int event_timedwait(event_t* ev, uint64_t timeout) { uint64_t start = current_time_ms(); uint64_t now = start; pthread_mutex_lock(&ev->mu); for (;;) { if (ev->state) break; uint64_t remain = timeout - (now - start); struct timespec ts; ts.tv_sec = remain / 1000; ts.tv_nsec = (remain % 1000) * 1000 * 1000; pthread_cond_timedwait(&ev->cv, &ev->mu, &ts); now = current_time_ms(); if (now - start > timeout) break; } int res = ev->state; pthread_mutex_unlock(&ev->mu); return res; } 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 < 13; call++) { for (thread = 0; thread < (int)(sizeof(threads) / sizeof(threads[0])); thread++) { struct thread_t* th = &threads[thread]; if (!th->created) { th->created = 1; event_init(&th->ready); event_init(&th->done); event_set(&th->done); thread_start(thr, th); } if (!event_isset(&th->done)) continue; event_reset(&th->done); th->call = call; __atomic_fetch_add(&running, 1, __ATOMIC_RELAXED); event_set(&th->ready); event_timedwait(&th->done, 45); break; } } for (i = 0; i < 100 && __atomic_load_n(&running, __ATOMIC_RELAXED); i++) sleep_ms(1); } static void execute_one(void); #define WAIT_FLAGS 0 static void loop(void) { int iter = 0; for (;; iter++) { char cwdbuf[32]; sprintf(cwdbuf, "./%d", iter); if (mkdir(cwdbuf, 0777)) exit(1); int pid = fork(); if (pid < 0) exit(1); if (pid == 0) { if (chdir(cwdbuf)) exit(1); execute_one(); exit(0); } int status = 0; uint64_t start = current_time_ms(); for (;;) { if (waitpid(-1, &status, WNOHANG | WAIT_FLAGS) == pid) break; sleep_ms(1); if (current_time_ms() - start < 5 * 1000) continue; kill_and_wait(pid, &status); break; } remove_dir(cwdbuf); } } uint64_t r[3] = {0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff}; void execute_call(int call) { intptr_t res = 0; switch (call) { case 0: res = syscall(SYS_kqueue); if (res != -1) r[0] = res; break; case 1: memcpy((void*)0x10000000, "\x58\xc8\x8f\xef\xee", 5); syscall(SYS_ioctl, -1, 0xc0f24425, 0x10000000); break; case 2: memcpy((void*)0x10000040, "\x0b\x75\xfb\x7f\x86\xb8\x71\x9d\x9c\xa1\xc0\x3b\xb4\x6e\x48\xf0\x8a\xb6\x50\x08\x5a\xc0\x62\xed\xe9\x13\xfc\xad\xbb\xaf\x4f\x90\xf5\xc0\x7b\xd0\xca\x1a\x07\x19\x60\x2e\xd7\x7b\x72\x93\xa5\x65\x5c\xf7\x1d\xd4\xc3\xa7\x94\x64\x8a\x20\xc2\x4c\x28\xa3\x5d\x11\x0e\xf0\x8f\x0e\x34\x11\xfc\x58\x06\xa7\x72\xc9\x5a\x7f\x25\x07\x36\x95\x0a\xb3", 84); syscall(SYS_ioctl, 0xffffff9c, 0xc0184432, 0x10000040); break; case 3: *(uint32_t*)0x100000c0 = 0; *(uint16_t*)0x100000c4 = 4; *(uint16_t*)0x100000c6 = 0xad; memcpy((void*)0x100000c8, "\x59\xf3\xc2\x20\x66\x37\xb3\xc4\x4c\x65\xff\x50\xeb\x44\x7c\x68\x00\xe7\xee\x19\xa6\x8b\x04\x23\x30\x87\xfd\x6c\x60\x81\xc9\xd7\x1a\xed\x1a\x53\x70\x30\x8c\x7a\xa0\x17\x8e\x01\x6e\xf4\x94\x0f\xdd\xa9\xe2\x75\x7b\x5c\xe9\xc0\x83\xb5\x54\x4c\x9f\x49\xf0\xc6\xea\xdb\xa9\xba\xfb\x91\x86\x94\x2a\x03\x1c\x4f\xcc\xcf\x4d\x1f\x65\x79\x49\xa5\x2c\x4b\x1b\xfd\x20\xa6\x29\xda\x67\xde\xc2\xa0\x78\x5b\xad\xdd\xd7\xe0\x87\x53\xc2\x71\xcb\x02\x65\xb8\x92\xe6\x36\xf9\xa6\x8a\x7b\x33\x19\x57\x6c\x7d\xb0\xd8\x5a\x84\x2f\x85\x22\xb0\xc9\xb8\x85\x75\x1f\xe8\x2a\x5d\x5d\x33\xc1\x44\x2b\x6f\xd1\xde\x1b\x09\x83\x3b\x74\xf2\x2d\x41\xd4\x8d\xef\x6a\xa5\x65\x9e\x2c\x7d\x90\x9f\xea\x2f\x80\x25\xa4\x55\x3c\xd9", 173); syscall(SYS_setsockopt, -1, 0x84, 0x13, 0x100000c0, 0xb5); break; case 4: res = syscall(SYS_fcntl, (intptr_t)r[0], 0, -1); if (res != -1) r[1] = res; break; case 5: *(uint32_t*)0x100001c0 = 0x20; syscall(SYS_getsockopt, (intptr_t)r[1], 0x84, 0x105, 0x10000180, 0x100001c0); break; case 6: *(uint32_t*)0x10000240 = 4; syscall(SYS_getsockopt, (intptr_t)r[1], 0x84, 0x1f, 0x10000200, 0x10000240); break; case 7: res = syscall(SYS_socket, 2, 3, 1); if (res != -1) r[2] = res; break; case 8: *(uint64_t*)0x10000280 = 0x7fff; *(uint64_t*)0x100002c0 = 2; syscall(SYS_copy_file_range, (intptr_t)r[1], 0x10000280, (intptr_t)r[2], 0x100002c0, 7ull, 0); break; case 9: *(uint32_t*)0x10000300 = 7; *(uint16_t*)0x10000304 = 8; *(uint16_t*)0x10000306 = 1; *(uint16_t*)0x10000308 = 0; *(uint16_t*)0x1000030a = 0x1000; *(uint16_t*)0x1000030c = 8; *(uint16_t*)0x1000030e = 4; *(uint16_t*)0x10000310 = 3; syscall(SYS_setsockopt, (intptr_t)r[2], 0x84, 0x14, 0x10000300, 0x12); break; case 10: *(uint8_t*)0x10000000 = -1; *(uint8_t*)0x10000001 = -1; *(uint8_t*)0x10000002 = -1; *(uint8_t*)0x10000003 = -1; *(uint8_t*)0x10000004 = -1; *(uint8_t*)0x10000005 = -1; *(uint8_t*)0x10000006 = 0xaa; *(uint8_t*)0x10000007 = 0xaa; *(uint8_t*)0x10000008 = 0xaa; *(uint8_t*)0x10000009 = 0xaa; *(uint8_t*)0x1000000a = 0xaa; *(uint8_t*)0x1000000b = 0xaa; *(uint16_t*)0x1000000c = htobe16(0x806); *(uint16_t*)0x1000000e = htobe16(6); *(uint16_t*)0x10000010 = htobe16(0x8035); *(uint8_t*)0x10000012 = 6; *(uint8_t*)0x10000013 = 1; *(uint16_t*)0x10000014 = htobe16(3); *(uint8_t*)0x10000016 = 0xaa; *(uint8_t*)0x10000017 = 0xaa; *(uint8_t*)0x10000018 = 0xaa; *(uint8_t*)0x10000019 = 0xaa; *(uint8_t*)0x1000001a = 0xaa; *(uint8_t*)0x1000001b = 0xaa; memcpy((void*)0x1000001c, "\x1d", 1); memcpy((void*)0x1000001d, "\x71\x3c\x34\xac\xc0\xec", 6); memcpy((void*)0x10000023, "\x8b\xf5\x44\xbb\xf8\xba\x5b\x80\x78\x20\x7d\x73\xf8\xc0\x34\xec", 16); break; case 11: memcpy((void*)0x10000040, "\xf3\x0f\x58\x11\xc4\xe1\xa9\x68\xb4\xe9\xb8\xcf\x00\x00\x0f\x71\xe6\xff\x88\x71\xf9\x66\x0f\x38\x3d\xff\xf2\xdc\xf6\x2e\x2f\xd2\xae\x96\x00\x00\x00\x2e\x0f\x15\xeb\x0f\x01\xd0", 44); syz_execute_func(0x10000040); break; case 12: break; } } int main(void) { syscall(SYS_mmap, 0x10000000, 0x1000000, 7, 0x1012, -1, 0); use_temporary_dir(); loop(); return 0; } :316:11: error: use of undeclared identifier 'SYS_copy_file_range' syscall(SYS_copy_file_range, (intptr_t)r[1], 0x10000280, (intptr_t)r[2], 0x100002c0, 7ull, 0); ^ 1 error generated. compiler invocation: clang [-o /tmp/syz-executor333202026 -DGOOS_freebsd=1 -DGOARCH_386=1 -DHOSTGOOS_freebsd=1 -x c - -m32 -O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wframe-larger-than=16384 -static -lc++ -Wno-overflow] --- FAIL: TestGenerate/freebsd/386/6 (1.47s) csource_test.go:123: opts: {Threaded:true Collide:false Repeat:true RepeatTimes:0 Procs:4 Sandbox:none Fault:false FaultCall:0 FaultNth:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false USB:false VhciInjection:false Wifi:false Sysctl:false UseTmpDir:true HandleSegv:false Repro:false Trace:false} program: r0 = kqueue() ioctl$DIOCADDSTATE(0xffffffffffffffff, 0xc0f24425, &(0x7f0000000000)="58c88fefee") ioctl$DIOCGETQSTATSV0(0xffffffffffffff9c, 0xc0184432, &(0x7f0000000040)="0b75fb7f86b8719d9ca1c03bb46e48f08ab650085ac062ede913fcadbbaf4f90f5c07bd0ca1a0719602ed77b7293a5655cf71dd4c3a794648a20c24c28a35d110ef08f0e3411fc5806a772c95a7f250736950ab3") setsockopt$inet_sctp_SCTP_AUTH_KEY(0xffffffffffffffff, 0x84, 0x13, &(0x7f00000000c0)={0x0, 0x4, 0xad, "59f3c2206637b3c44c65ff50eb447c6800e7ee19a68b04233087fd6c6081c9d71aed1a5370308c7aa0178e016ef4940fdda9e2757b5ce9c083b5544c9f49f0c6eadba9bafb9186942a031c4fcccf4d1f657949a52c4b1bfd20a629da67dec2a0785badddd7e08753c271cb0265b892e636f9a68a7b3319576c7db0d85a842f8522b0c9b885751fe82a5d5d33c1442b6fd1de1b09833b74f22d41d48def6aa5659e2c7d909fea2f8025a4553cd9"}, 0xb5) r1 = fcntl$dupfd(r0, 0x0, 0xffffffffffffffff) getsockopt$inet_sctp_SCTP_GET_ASSOC_ID_LIST(r1, 0x84, 0x105, &(0x7f0000000180)={0x7, [0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0]}, &(0x7f00000001c0)=0x20) getsockopt$inet_sctp_SCTP_RECVRCVINFO(r1, 0x84, 0x1f, &(0x7f0000000200), &(0x7f0000000240)=0x4) r2 = socket$inet(0x2, 0x3, 0x1) copy_file_range(r1, &(0x7f0000000280)=0x7fff, r2, &(0x7f00000002c0)=0x2, 0x7, 0x0) setsockopt$inet_sctp_SCTP_HMAC_IDENT(r2, 0x84, 0x14, &(0x7f0000000300)={0x7, [0x8, 0x1, 0x0, 0x1000, 0x8, 0x4, 0x3]}, 0x12) syz_emit_ethernet(0x33, &(0x7f0000000000)={@broadcast, @local, [], {@arp={0x806, @generic={0x6, 0x8035, 0x6, 0x1, 0x3, @local, "1d", @random="713c34acc0ec", "8bf544bbf8ba5b8078207d73f8c034ec"}}}}) syz_execute_func(&(0x7f0000000040)="f30f5811c4e1a968b4e9b8cf00000f71e6ff8871f9660f383dfff2dcf62e2fd2ae960000002e0f15eb0f01d0") syz_extract_tcp_res(&(0x7f0000000080), 0xffffffff, 0x1) csource_test.go:124: 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 #include #include #include #include #include #include #include static unsigned long long procid; static void kill_and_wait(int pid, int* status) { kill(pid, SIGKILL); while (waitpid(-1, status, 0) != pid) { } } static void sleep_ms(uint64_t ms) { usleep(ms * 1000); } static uint64_t current_time_ms(void) { struct timespec ts; if (clock_gettime(CLOCK_MONOTONIC, &ts)) exit(1); return (uint64_t)ts.tv_sec * 1000 + (uint64_t)ts.tv_nsec / 1000000; } static void use_temporary_dir(void) { char tmpdir_template[] = "./syzkaller.XXXXXX"; char* tmpdir = mkdtemp(tmpdir_template); if (!tmpdir) exit(1); if (chmod(tmpdir, 0777)) exit(1); if (chdir(tmpdir)) exit(1); } static void __attribute__((noinline)) remove_dir(const char* dir) { DIR* dp = opendir(dir); if (dp == NULL) { if (errno == EACCES) { if (rmdir(dir)) exit(1); return; } exit(1); } struct dirent* ep = 0; while ((ep = readdir(dp))) { if (strcmp(ep->d_name, ".") == 0 || strcmp(ep->d_name, "..") == 0) continue; char filename[FILENAME_MAX]; snprintf(filename, sizeof(filename), "%s/%s", dir, ep->d_name); struct stat st; if (lstat(filename, &st)) exit(1); if (S_ISDIR(st.st_mode)) { remove_dir(filename); continue; } if (unlink(filename)) exit(1); } closedir(dp); if (rmdir(dir)) exit(1); } static void thread_start(void* (*fn)(void*), void* arg) { pthread_t th; pthread_attr_t attr; pthread_attr_init(&attr); pthread_attr_setstacksize(&attr, 128 << 10); int i = 0; for (; i < 100; i++) { if (pthread_create(&th, &attr, fn, arg) == 0) { pthread_attr_destroy(&attr); return; } if (errno == EAGAIN) { usleep(50); continue; } break; } exit(1); } typedef struct { pthread_mutex_t mu; pthread_cond_t cv; int state; } event_t; static void event_init(event_t* ev) { if (pthread_mutex_init(&ev->mu, 0)) exit(1); if (pthread_cond_init(&ev->cv, 0)) exit(1); ev->state = 0; } static void event_reset(event_t* ev) { ev->state = 0; } static void event_set(event_t* ev) { pthread_mutex_lock(&ev->mu); if (ev->state) exit(1); ev->state = 1; pthread_mutex_unlock(&ev->mu); pthread_cond_broadcast(&ev->cv); } static void event_wait(event_t* ev) { pthread_mutex_lock(&ev->mu); while (!ev->state) pthread_cond_wait(&ev->cv, &ev->mu); pthread_mutex_unlock(&ev->mu); } static int event_isset(event_t* ev) { pthread_mutex_lock(&ev->mu); int res = ev->state; pthread_mutex_unlock(&ev->mu); return res; } static int event_timedwait(event_t* ev, uint64_t timeout) { uint64_t start = current_time_ms(); uint64_t now = start; pthread_mutex_lock(&ev->mu); for (;;) { if (ev->state) break; uint64_t remain = timeout - (now - start); struct timespec ts; ts.tv_sec = remain / 1000; ts.tv_nsec = (remain % 1000) * 1000 * 1000; pthread_cond_timedwait(&ev->cv, &ev->mu, &ts); now = current_time_ms(); if (now - start > timeout) break; } int res = ev->state; pthread_mutex_unlock(&ev->mu); return res; } static void sandbox_common() { struct rlimit rlim; rlim.rlim_cur = rlim.rlim_max = 128 << 20; setrlimit(RLIMIT_AS, &rlim); rlim.rlim_cur = rlim.rlim_max = 8 << 20; setrlimit(RLIMIT_MEMLOCK, &rlim); rlim.rlim_cur = rlim.rlim_max = 1 << 20; setrlimit(RLIMIT_FSIZE, &rlim); rlim.rlim_cur = rlim.rlim_max = 1 << 20; setrlimit(RLIMIT_STACK, &rlim); rlim.rlim_cur = rlim.rlim_max = 0; setrlimit(RLIMIT_CORE, &rlim); rlim.rlim_cur = rlim.rlim_max = 256; setrlimit(RLIMIT_NOFILE, &rlim); } static void loop(); static int do_sandbox_none(void) { sandbox_common(); loop(); return 0; } static long syz_execute_func(volatile long text) { ((void (*)(void))(text))(); return 0; } struct thread_t { int created, call; event_t ready, done; }; static struct thread_t threads[16]; static void execute_call(int call); static int running; static void* thr(void* arg) { struct thread_t* th = (struct thread_t*)arg; for (;;) { event_wait(&th->ready); event_reset(&th->ready); execute_call(th->call); __atomic_fetch_sub(&running, 1, __ATOMIC_RELAXED); event_set(&th->done); } return 0; } static void execute_one(void) { int i, call, thread; for (call = 0; call < 13; call++) { for (thread = 0; thread < (int)(sizeof(threads) / sizeof(threads[0])); thread++) { struct thread_t* th = &threads[thread]; if (!th->created) { th->created = 1; event_init(&th->ready); event_init(&th->done); event_set(&th->done); thread_start(thr, th); } if (!event_isset(&th->done)) continue; event_reset(&th->done); th->call = call; __atomic_fetch_add(&running, 1, __ATOMIC_RELAXED); event_set(&th->ready); event_timedwait(&th->done, 45); break; } } for (i = 0; i < 100 && __atomic_load_n(&running, __ATOMIC_RELAXED); i++) sleep_ms(1); } static void execute_one(void); #define WAIT_FLAGS 0 static void loop(void) { int iter = 0; for (;; iter++) { char cwdbuf[32]; sprintf(cwdbuf, "./%d", iter); if (mkdir(cwdbuf, 0777)) exit(1); int pid = fork(); if (pid < 0) exit(1); if (pid == 0) { if (chdir(cwdbuf)) exit(1); execute_one(); exit(0); } int status = 0; uint64_t start = current_time_ms(); for (;;) { if (waitpid(-1, &status, WNOHANG | WAIT_FLAGS) == pid) break; sleep_ms(1); if (current_time_ms() - start < 5 * 1000) continue; kill_and_wait(pid, &status); break; } remove_dir(cwdbuf); } } uint64_t r[3] = {0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff}; void execute_call(int call) { intptr_t res = 0; switch (call) { case 0: res = syscall(SYS_kqueue); if (res != -1) r[0] = res; break; case 1: memcpy((void*)0x10000000, "\x58\xc8\x8f\xef\xee", 5); syscall(SYS_ioctl, -1, 0xc0f24425, 0x10000000); break; case 2: memcpy((void*)0x10000040, "\x0b\x75\xfb\x7f\x86\xb8\x71\x9d\x9c\xa1\xc0\x3b\xb4\x6e\x48\xf0\x8a\xb6\x50\x08\x5a\xc0\x62\xed\xe9\x13\xfc\xad\xbb\xaf\x4f\x90\xf5\xc0\x7b\xd0\xca\x1a\x07\x19\x60\x2e\xd7\x7b\x72\x93\xa5\x65\x5c\xf7\x1d\xd4\xc3\xa7\x94\x64\x8a\x20\xc2\x4c\x28\xa3\x5d\x11\x0e\xf0\x8f\x0e\x34\x11\xfc\x58\x06\xa7\x72\xc9\x5a\x7f\x25\x07\x36\x95\x0a\xb3", 84); syscall(SYS_ioctl, 0xffffff9c, 0xc0184432, 0x10000040); break; case 3: *(uint32_t*)0x100000c0 = 0; *(uint16_t*)0x100000c4 = 4; *(uint16_t*)0x100000c6 = 0xad; memcpy((void*)0x100000c8, "\x59\xf3\xc2\x20\x66\x37\xb3\xc4\x4c\x65\xff\x50\xeb\x44\x7c\x68\x00\xe7\xee\x19\xa6\x8b\x04\x23\x30\x87\xfd\x6c\x60\x81\xc9\xd7\x1a\xed\x1a\x53\x70\x30\x8c\x7a\xa0\x17\x8e\x01\x6e\xf4\x94\x0f\xdd\xa9\xe2\x75\x7b\x5c\xe9\xc0\x83\xb5\x54\x4c\x9f\x49\xf0\xc6\xea\xdb\xa9\xba\xfb\x91\x86\x94\x2a\x03\x1c\x4f\xcc\xcf\x4d\x1f\x65\x79\x49\xa5\x2c\x4b\x1b\xfd\x20\xa6\x29\xda\x67\xde\xc2\xa0\x78\x5b\xad\xdd\xd7\xe0\x87\x53\xc2\x71\xcb\x02\x65\xb8\x92\xe6\x36\xf9\xa6\x8a\x7b\x33\x19\x57\x6c\x7d\xb0\xd8\x5a\x84\x2f\x85\x22\xb0\xc9\xb8\x85\x75\x1f\xe8\x2a\x5d\x5d\x33\xc1\x44\x2b\x6f\xd1\xde\x1b\x09\x83\x3b\x74\xf2\x2d\x41\xd4\x8d\xef\x6a\xa5\x65\x9e\x2c\x7d\x90\x9f\xea\x2f\x80\x25\xa4\x55\x3c\xd9", 173); syscall(SYS_setsockopt, -1, 0x84, 0x13, 0x100000c0, 0xb5); break; case 4: res = syscall(SYS_fcntl, (intptr_t)r[0], 0, -1); if (res != -1) r[1] = res; break; case 5: *(uint32_t*)0x100001c0 = 0x20; syscall(SYS_getsockopt, (intptr_t)r[1], 0x84, 0x105, 0x10000180, 0x100001c0); break; case 6: *(uint32_t*)0x10000240 = 4; syscall(SYS_getsockopt, (intptr_t)r[1], 0x84, 0x1f, 0x10000200, 0x10000240); break; case 7: res = syscall(SYS_socket, 2, 3, 1); if (res != -1) r[2] = res; break; case 8: *(uint64_t*)0x10000280 = 0x7fff; *(uint64_t*)0x100002c0 = 2; syscall(SYS_copy_file_range, (intptr_t)r[1], 0x10000280, (intptr_t)r[2], 0x100002c0, 7ull, 0); break; case 9: *(uint32_t*)0x10000300 = 7; *(uint16_t*)0x10000304 = 8; *(uint16_t*)0x10000306 = 1; *(uint16_t*)0x10000308 = 0; *(uint16_t*)0x1000030a = 0x1000; *(uint16_t*)0x1000030c = 8; *(uint16_t*)0x1000030e = 4; *(uint16_t*)0x10000310 = 3; syscall(SYS_setsockopt, (intptr_t)r[2], 0x84, 0x14, 0x10000300, 0x12); break; case 10: *(uint8_t*)0x10000000 = -1; *(uint8_t*)0x10000001 = -1; *(uint8_t*)0x10000002 = -1; *(uint8_t*)0x10000003 = -1; *(uint8_t*)0x10000004 = -1; *(uint8_t*)0x10000005 = -1; *(uint8_t*)0x10000006 = 0xaa; *(uint8_t*)0x10000007 = 0xaa; *(uint8_t*)0x10000008 = 0xaa; *(uint8_t*)0x10000009 = 0xaa; *(uint8_t*)0x1000000a = 0xaa; *(uint8_t*)0x1000000b = 0xaa; *(uint16_t*)0x1000000c = htobe16(0x806); *(uint16_t*)0x1000000e = htobe16(6); *(uint16_t*)0x10000010 = htobe16(0x8035); *(uint8_t*)0x10000012 = 6; *(uint8_t*)0x10000013 = 1; *(uint16_t*)0x10000014 = htobe16(3); *(uint8_t*)0x10000016 = 0xaa; *(uint8_t*)0x10000017 = 0xaa; *(uint8_t*)0x10000018 = 0xaa; *(uint8_t*)0x10000019 = 0xaa; *(uint8_t*)0x1000001a = 0xaa; *(uint8_t*)0x1000001b = 0xaa; memcpy((void*)0x1000001c, "\x1d", 1); memcpy((void*)0x1000001d, "\x71\x3c\x34\xac\xc0\xec", 6); memcpy((void*)0x10000023, "\x8b\xf5\x44\xbb\xf8\xba\x5b\x80\x78\x20\x7d\x73\xf8\xc0\x34\xec", 16); break; case 11: memcpy((void*)0x10000040, "\xf3\x0f\x58\x11\xc4\xe1\xa9\x68\xb4\xe9\xb8\xcf\x00\x00\x0f\x71\xe6\xff\x88\x71\xf9\x66\x0f\x38\x3d\xff\xf2\xdc\xf6\x2e\x2f\xd2\xae\x96\x00\x00\x00\x2e\x0f\x15\xeb\x0f\x01\xd0", 44); syz_execute_func(0x10000040); break; case 12: break; } } int main(void) { syscall(SYS_mmap, 0x10000000, 0x1000000, 7, 0x1012, -1, 0); for (procid = 0; procid < 4; procid++) { if (fork() == 0) { use_temporary_dir(); do_sandbox_none(); } } sleep(1000000); return 0; } :345:11: error: use of undeclared identifier 'SYS_copy_file_range' syscall(SYS_copy_file_range, (intptr_t)r[1], 0x10000280, (intptr_t)r[2], 0x100002c0, 7ull, 0); ^ 1 error generated. compiler invocation: clang [-o /tmp/syz-executor312932033 -DGOOS_freebsd=1 -DGOARCH_386=1 -DHOSTGOOS_freebsd=1 -x c - -m32 -O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wframe-larger-than=16384 -static -lc++ -Wno-overflow] --- FAIL: TestGenerate/freebsd/386/5 (1.59s) csource_test.go:121: --- FAIL: TestGenerate/freebsd/386/12 (1.25s) csource_test.go:121: --- FAIL: TestGenerate/freebsd/386/1 (1.29s) csource_test.go:121: --- FAIL: TestGenerate/freebsd/386/3 (1.21s) csource_test.go:121: --- FAIL: TestGenerate/freebsd/386/14 (1.10s) csource_test.go:121: FAIL FAIL github.com/google/syzkaller/pkg/csource 13.244s ok github.com/google/syzkaller/pkg/db (cached) ? github.com/google/syzkaller/pkg/debugtracer [no test files] ok github.com/google/syzkaller/pkg/email (cached) ? github.com/google/syzkaller/pkg/gce [no test files] ? github.com/google/syzkaller/pkg/gcs [no test files] ? github.com/google/syzkaller/pkg/hash [no test files] ok github.com/google/syzkaller/pkg/host 1.100s ? github.com/google/syzkaller/pkg/html [no test files] ok github.com/google/syzkaller/pkg/ifuzz (cached) ? github.com/google/syzkaller/pkg/ifuzz/iset [no test files] ? github.com/google/syzkaller/pkg/ifuzz/powerpc [no test files] ? github.com/google/syzkaller/pkg/ifuzz/powerpc/generated [no test files] ? github.com/google/syzkaller/pkg/ifuzz/x86 [no test files] ? github.com/google/syzkaller/pkg/ifuzz/x86/gen [no test files] ? github.com/google/syzkaller/pkg/ifuzz/x86/generated [no test files] ok github.com/google/syzkaller/pkg/instance 1.030s ok github.com/google/syzkaller/pkg/ipc 3.953s ? github.com/google/syzkaller/pkg/ipc/ipcconfig [no test files] ? github.com/google/syzkaller/pkg/kcidb [no test files] ok github.com/google/syzkaller/pkg/kconfig 0.042s 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/pkg/rpctype [no test files] ok github.com/google/syzkaller/pkg/runtest 58.291s ok github.com/google/syzkaller/pkg/serializer (cached) ? github.com/google/syzkaller/pkg/signal [no test files] ok github.com/google/syzkaller/pkg/symbolizer 0.427s ok github.com/google/syzkaller/pkg/vcs 6.361s ok github.com/google/syzkaller/prog (cached) ok github.com/google/syzkaller/prog/test (cached) ? github.com/google/syzkaller/sys [no test files] ? github.com/google/syzkaller/sys/akaros [no test files] ? github.com/google/syzkaller/sys/akaros/gen [no test files] ? github.com/google/syzkaller/sys/freebsd [no test files] ? github.com/google/syzkaller/sys/freebsd/gen [no test files] ? github.com/google/syzkaller/sys/fuchsia [no test files] ? github.com/google/syzkaller/sys/fuchsia/fidlgen [no test files] ? github.com/google/syzkaller/sys/fuchsia/gen [no test files] ? github.com/google/syzkaller/sys/fuchsia/layout [no test files] ok github.com/google/syzkaller/sys/linux (cached) ? github.com/google/syzkaller/sys/linux/gen [no test files] ? github.com/google/syzkaller/sys/netbsd [no test files] ? github.com/google/syzkaller/sys/netbsd/gen [no test files] ok github.com/google/syzkaller/sys/openbsd (cached) ? github.com/google/syzkaller/sys/openbsd/gen [no test files] ? github.com/google/syzkaller/sys/syz-extract [no test files] ? github.com/google/syzkaller/sys/syz-sysgen [no test files] ? github.com/google/syzkaller/sys/targets [no test files] ? github.com/google/syzkaller/sys/test [no test files] ? github.com/google/syzkaller/sys/test/gen [no test files] ? github.com/google/syzkaller/sys/trusty [no test files] ? github.com/google/syzkaller/sys/trusty/gen [no test files] ? github.com/google/syzkaller/sys/windows [no test files] ? github.com/google/syzkaller/sys/windows/gen [no test files] ok github.com/google/syzkaller/syz-ci (cached) ok github.com/google/syzkaller/syz-fuzzer 0.656s ok github.com/google/syzkaller/syz-hub 0.137s ok github.com/google/syzkaller/syz-hub/state 0.137s ok github.com/google/syzkaller/syz-manager 1.037s ? github.com/google/syzkaller/tools/syz-benchcmp [no test files] ? github.com/google/syzkaller/tools/syz-bisect [no test files] ? github.com/google/syzkaller/tools/syz-check [no test files] ? github.com/google/syzkaller/tools/syz-cover [no test files] ? github.com/google/syzkaller/tools/syz-crush [no test files] ? github.com/google/syzkaller/tools/syz-db [no test files] ? github.com/google/syzkaller/tools/syz-execprog [no test files] ? github.com/google/syzkaller/tools/syz-expand [no test files] ? github.com/google/syzkaller/tools/syz-fmt [no test files] ? github.com/google/syzkaller/tools/syz-hubtool [no test files] ? github.com/google/syzkaller/tools/syz-kcidb [no test files] ? github.com/google/syzkaller/tools/syz-kconf [no test files] ok github.com/google/syzkaller/tools/syz-linter 2.483s ? github.com/google/syzkaller/tools/syz-make [no test files] ? github.com/google/syzkaller/tools/syz-minconfig [no test files] ? github.com/google/syzkaller/tools/syz-mutate [no test files] ? github.com/google/syzkaller/tools/syz-prog2c [no test files] ? github.com/google/syzkaller/tools/syz-reporter [no test files] ? github.com/google/syzkaller/tools/syz-repro [no test files] ? github.com/google/syzkaller/tools/syz-reprolist [no test files] ? github.com/google/syzkaller/tools/syz-runtest [no test files] ? github.com/google/syzkaller/tools/syz-showprio [no test files] ? github.com/google/syzkaller/tools/syz-stress [no test files] ? github.com/google/syzkaller/tools/syz-symbolize [no test files] ? github.com/google/syzkaller/tools/syz-testbuild [no test files] ? github.com/google/syzkaller/tools/syz-trace2syz [no test files] ok github.com/google/syzkaller/tools/syz-trace2syz/parser (cached) ok github.com/google/syzkaller/tools/syz-trace2syz/proggen (cached) ? github.com/google/syzkaller/tools/syz-tty [no test files] ? github.com/google/syzkaller/tools/syz-upgrade [no test files] ? github.com/google/syzkaller/tools/syz-usbgen [no test files] ok github.com/google/syzkaller/vm (cached) ? github.com/google/syzkaller/vm/adb [no test files] ? github.com/google/syzkaller/vm/bhyve [no test files] ? github.com/google/syzkaller/vm/gce [no test files] ? github.com/google/syzkaller/vm/gvisor [no test files] ok github.com/google/syzkaller/vm/isolated (cached) ? github.com/google/syzkaller/vm/kvm [no test files] ? github.com/google/syzkaller/vm/odroid [no test files] ? github.com/google/syzkaller/vm/qemu [no test files] ok github.com/google/syzkaller/vm/vmimpl (cached) ? github.com/google/syzkaller/vm/vmm [no test files] ? github.com/google/syzkaller/vm/vmware [no test files] FAIL