// https://syzkaller.appspot.com/bug?id=c59a8f0485cd6634443cdf23cdbf3ea264dd888d // 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 unsigned long long procid; static void sleep_ms(uint64_t ms) { usleep(ms * 1000); } static uint64_t current_time_ms(void) { struct timespec ts; if (clock_gettime(CLOCK_MONOTONIC, &ts)) exit(1); return (uint64_t)ts.tv_sec * 1000 + (uint64_t)ts.tv_nsec / 1000000; } static void use_temporary_dir(void) { char tmpdir_template[] = "./syzkaller.XXXXXX"; char* tmpdir = mkdtemp(tmpdir_template); if (!tmpdir) exit(1); if (chmod(tmpdir, 0777)) exit(1); if (chdir(tmpdir)) exit(1); } static bool write_file(const char* file, const char* what, ...) { char buf[1024]; va_list args; va_start(args, what); vsnprintf(buf, sizeof(buf), what, args); va_end(args); buf[sizeof(buf) - 1] = 0; int len = strlen(buf); int fd = open(file, O_WRONLY | O_CLOEXEC); if (fd == -1) return false; if (write(fd, buf, len) != len) { int err = errno; close(fd); errno = err; return false; } close(fd); return true; } #define USB_DEBUG 0 #define USB_MAX_EP_NUM 32 struct usb_device_index { struct usb_device_descriptor* dev; struct usb_config_descriptor* config; unsigned config_length; struct usb_interface_descriptor* iface; struct usb_endpoint_descriptor* eps[USB_MAX_EP_NUM]; unsigned eps_num; }; static bool parse_usb_descriptor(char* buffer, size_t length, struct usb_device_index* index) { if (length < sizeof(*index->dev) + sizeof(*index->config) + sizeof(*index->iface)) return false; index->dev = (struct usb_device_descriptor*)buffer; index->config = (struct usb_config_descriptor*)(buffer + sizeof(*index->dev)); index->config_length = length - sizeof(*index->dev); index->iface = (struct usb_interface_descriptor*)(buffer + sizeof(*index->dev) + sizeof(*index->config)); index->eps_num = 0; size_t offset = 0; while (true) { if (offset + 1 >= length) break; uint8_t desc_length = buffer[offset]; uint8_t desc_type = buffer[offset + 1]; if (desc_length <= 2) break; if (offset + desc_length > length) break; if (desc_type == USB_DT_ENDPOINT) { index->eps[index->eps_num] = (struct usb_endpoint_descriptor*)(buffer + offset); index->eps_num++; } if (index->eps_num == USB_MAX_EP_NUM) break; offset += desc_length; } return true; } enum usb_fuzzer_event_type { USB_FUZZER_EVENT_INVALID, USB_FUZZER_EVENT_CONNECT, USB_FUZZER_EVENT_DISCONNECT, USB_FUZZER_EVENT_SUSPEND, USB_FUZZER_EVENT_RESUME, USB_FUZZER_EVENT_CONTROL, }; struct usb_fuzzer_event { uint32_t type; uint32_t length; char data[0]; }; struct usb_fuzzer_init { uint64_t speed; const char* driver_name; const char* device_name; }; struct usb_fuzzer_ep_io { uint16_t ep; uint16_t flags; uint32_t length; char data[0]; }; #define USB_FUZZER_IOCTL_INIT _IOW('U', 0, struct usb_fuzzer_init) #define USB_FUZZER_IOCTL_RUN _IO('U', 1) #define USB_FUZZER_IOCTL_EVENT_FETCH _IOR('U', 2, struct usb_fuzzer_event) #define USB_FUZZER_IOCTL_EP0_WRITE _IOW('U', 3, struct usb_fuzzer_ep_io) #define USB_FUZZER_IOCTL_EP0_READ _IOWR('U', 4, struct usb_fuzzer_ep_io) #define USB_FUZZER_IOCTL_EP_ENABLE _IOW('U', 5, struct usb_endpoint_descriptor) #define USB_FUZZER_IOCTL_EP_WRITE _IOW('U', 7, struct usb_fuzzer_ep_io) #define USB_FUZZER_IOCTL_EP_READ _IOWR('U', 8, struct usb_fuzzer_ep_io) #define USB_FUZZER_IOCTL_CONFIGURE _IO('U', 9) #define USB_FUZZER_IOCTL_VBUS_DRAW _IOW('U', 10, uint32_t) int usb_fuzzer_open() { return open("/sys/kernel/debug/usb-fuzzer", O_RDWR); } int usb_fuzzer_init(int fd, uint32_t speed, const char* driver, const char* device) { struct usb_fuzzer_init arg; arg.speed = speed; arg.driver_name = driver; arg.device_name = device; return ioctl(fd, USB_FUZZER_IOCTL_INIT, &arg); } int usb_fuzzer_run(int fd) { return ioctl(fd, USB_FUZZER_IOCTL_RUN, 0); } int usb_fuzzer_event_fetch(int fd, struct usb_fuzzer_event* event) { return ioctl(fd, USB_FUZZER_IOCTL_EVENT_FETCH, event); } int usb_fuzzer_ep0_write(int fd, struct usb_fuzzer_ep_io* io) { return ioctl(fd, USB_FUZZER_IOCTL_EP0_WRITE, io); } int usb_fuzzer_ep0_read(int fd, struct usb_fuzzer_ep_io* io) { return ioctl(fd, USB_FUZZER_IOCTL_EP0_READ, io); } int usb_fuzzer_ep_write(int fd, struct usb_fuzzer_ep_io* io) { return ioctl(fd, USB_FUZZER_IOCTL_EP_WRITE, io); } int usb_fuzzer_ep_read(int fd, struct usb_fuzzer_ep_io* io) { return ioctl(fd, USB_FUZZER_IOCTL_EP_READ, io); } int usb_fuzzer_ep_enable(int fd, struct usb_endpoint_descriptor* desc) { return ioctl(fd, USB_FUZZER_IOCTL_EP_ENABLE, desc); } int usb_fuzzer_configure(int fd) { return ioctl(fd, USB_FUZZER_IOCTL_CONFIGURE, 0); } int usb_fuzzer_vbus_draw(int fd, uint32_t power) { return ioctl(fd, USB_FUZZER_IOCTL_VBUS_DRAW, power); } #define USB_MAX_PACKET_SIZE 1024 struct usb_fuzzer_control_event { struct usb_fuzzer_event inner; struct usb_ctrlrequest ctrl; char data[USB_MAX_PACKET_SIZE]; }; struct usb_fuzzer_ep_io_data { struct usb_fuzzer_ep_io inner; char data[USB_MAX_PACKET_SIZE]; }; struct vusb_connect_string_descriptor { uint32_t len; char* str; } __attribute__((packed)); struct vusb_connect_descriptors { uint32_t qual_len; char* qual; uint32_t bos_len; char* bos; uint32_t strs_len; struct vusb_connect_string_descriptor strs[0]; } __attribute__((packed)); static const char* default_string = "syzkaller"; static bool lookup_connect_response(struct vusb_connect_descriptors* descs, struct usb_device_index* index, struct usb_ctrlrequest* ctrl, char** response_data, uint32_t* response_length) { uint8_t str_idx; switch (ctrl->bRequestType & USB_TYPE_MASK) { case USB_TYPE_STANDARD: switch (ctrl->bRequest) { case USB_REQ_GET_DESCRIPTOR: switch (ctrl->wValue >> 8) { case USB_DT_DEVICE: *response_data = (char*)index->dev; *response_length = sizeof(*index->dev); return true; case USB_DT_CONFIG: *response_data = (char*)index->config; *response_length = index->config_length; return true; case USB_DT_STRING: str_idx = (uint8_t)ctrl->wValue; if (str_idx >= descs->strs_len) { *response_data = (char*)default_string; *response_length = strlen(default_string); } else { *response_data = descs->strs[str_idx].str; *response_length = descs->strs[str_idx].len; } return true; case USB_DT_BOS: *response_data = descs->bos; *response_length = descs->bos_len; return true; case USB_DT_DEVICE_QUALIFIER: *response_data = descs->qual; *response_length = descs->qual_len; return true; default: exit(1); return false; } break; default: exit(1); return false; } break; default: exit(1); return false; } return false; } static volatile long syz_usb_connect(volatile long a0, volatile long a1, volatile long a2, volatile long a3) { uint64_t speed = a0; uint64_t dev_len = a1; char* dev = (char*)a2; struct vusb_connect_descriptors* descs = (struct vusb_connect_descriptors*)a3; if (!dev) { return -1; } struct usb_device_index index; memset(&index, 0, sizeof(index)); int rv = 0; rv = parse_usb_descriptor(dev, dev_len, &index); if (!rv) { return rv; } int fd = usb_fuzzer_open(); if (fd < 0) { return fd; } char device[32]; sprintf(&device[0], "dummy_udc.%llu", procid); rv = usb_fuzzer_init(fd, speed, "dummy_udc", &device[0]); if (rv < 0) { return rv; } rv = usb_fuzzer_run(fd); if (rv < 0) { return rv; } bool done = false; while (!done) { struct usb_fuzzer_control_event event; event.inner.type = 0; event.inner.length = sizeof(event.ctrl); rv = usb_fuzzer_event_fetch(fd, (struct usb_fuzzer_event*)&event); if (rv < 0) { return rv; } if (event.inner.type != USB_FUZZER_EVENT_CONTROL) continue; bool response_found = false; char* response_data = NULL; uint32_t response_length = 0; if (event.ctrl.bRequestType & USB_DIR_IN) { response_found = lookup_connect_response( descs, &index, &event.ctrl, &response_data, &response_length); if (!response_found) { return -1; } } else { if ((event.ctrl.bRequestType & USB_TYPE_MASK) != USB_TYPE_STANDARD || event.ctrl.bRequest != USB_REQ_SET_CONFIGURATION) { exit(1); return -1; } done = true; } if (done) { rv = usb_fuzzer_vbus_draw(fd, index.config->bMaxPower); if (rv < 0) { return rv; } rv = usb_fuzzer_configure(fd); if (rv < 0) { return rv; } unsigned ep; for (ep = 0; ep < index.eps_num; ep++) { rv = usb_fuzzer_ep_enable(fd, index.eps[ep]); if (rv < 0) { } else { } } } struct usb_fuzzer_ep_io_data response; response.inner.ep = 0; response.inner.flags = 0; if (response_length > sizeof(response.data)) response_length = 0; if (event.ctrl.wLength < response_length) response_length = event.ctrl.wLength; response.inner.length = response_length; if (response_data) memcpy(&response.data[0], response_data, response_length); else memset(&response.data[0], 0, response_length); if (event.ctrl.bRequestType & USB_DIR_IN) { rv = usb_fuzzer_ep0_write(fd, (struct usb_fuzzer_ep_io*)&response); } else { rv = usb_fuzzer_ep0_read(fd, (struct usb_fuzzer_ep_io*)&response); } if (rv < 0) { return rv; } } sleep_ms(200); return fd; } static long syz_open_dev(volatile long a0, volatile long a1, volatile long a2) { if (a0 == 0xc || a0 == 0xb) { char buf[128]; sprintf(buf, "/dev/%s/%d:%d", a0 == 0xc ? "char" : "block", (uint8_t)a1, (uint8_t)a2); return open(buf, O_RDWR, 0); } else { char buf[1024]; char* hash; strncpy(buf, (char*)a0, sizeof(buf) - 1); buf[sizeof(buf) - 1] = 0; while ((hash = strchr(buf, '#'))) { *hash = '0' + (char)(a1 % 10); a1 /= 10; } return open(buf, a2, 0); } } static void setup_common() { if (mount(0, "/sys/fs/fuse/connections", "fusectl", 0, 0)) { } } static void loop(); static void sandbox_common() { prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0); setpgrp(); setsid(); struct rlimit rlim; rlim.rlim_cur = rlim.rlim_max = (200 << 20); setrlimit(RLIMIT_AS, &rlim); rlim.rlim_cur = rlim.rlim_max = 32 << 20; setrlimit(RLIMIT_MEMLOCK, &rlim); rlim.rlim_cur = rlim.rlim_max = 136 << 20; setrlimit(RLIMIT_FSIZE, &rlim); rlim.rlim_cur = rlim.rlim_max = 1 << 20; setrlimit(RLIMIT_STACK, &rlim); rlim.rlim_cur = rlim.rlim_max = 0; setrlimit(RLIMIT_CORE, &rlim); rlim.rlim_cur = rlim.rlim_max = 256; setrlimit(RLIMIT_NOFILE, &rlim); if (unshare(CLONE_NEWNS)) { } if (unshare(CLONE_NEWIPC)) { } if (unshare(0x02000000)) { } if (unshare(CLONE_NEWUTS)) { } if (unshare(CLONE_SYSVSEM)) { } typedef struct { const char* name; const char* value; } sysctl_t; static const sysctl_t sysctls[] = { {"/proc/sys/kernel/shmmax", "16777216"}, {"/proc/sys/kernel/shmall", "536870912"}, {"/proc/sys/kernel/shmmni", "1024"}, {"/proc/sys/kernel/msgmax", "8192"}, {"/proc/sys/kernel/msgmni", "1024"}, {"/proc/sys/kernel/msgmnb", "1024"}, {"/proc/sys/kernel/sem", "1024 1048576 500 1024"}, }; unsigned i; for (i = 0; i < sizeof(sysctls) / sizeof(sysctls[0]); i++) write_file(sysctls[i].name, sysctls[i].value); } int wait_for_loop(int pid) { if (pid < 0) exit(1); int status = 0; while (waitpid(-1, &status, __WALL) != pid) { } return WEXITSTATUS(status); } static void drop_caps(void) { struct __user_cap_header_struct cap_hdr = {}; struct __user_cap_data_struct cap_data[2] = {}; cap_hdr.version = _LINUX_CAPABILITY_VERSION_3; cap_hdr.pid = getpid(); if (syscall(SYS_capget, &cap_hdr, &cap_data)) exit(1); const int drop = (1 << CAP_SYS_PTRACE) | (1 << CAP_SYS_NICE); cap_data[0].effective &= ~drop; cap_data[0].permitted &= ~drop; cap_data[0].inheritable &= ~drop; if (syscall(SYS_capset, &cap_hdr, &cap_data)) exit(1); } static int do_sandbox_none(void) { if (unshare(CLONE_NEWPID)) { } int pid = fork(); if (pid != 0) return wait_for_loop(pid); setup_common(); sandbox_common(); drop_caps(); if (unshare(CLONE_NEWNET)) { } loop(); exit(1); } #define FS_IOC_SETFLAGS _IOW('f', 2, long) static void remove_dir(const char* dir) { DIR* dp; struct dirent* ep; int iter = 0; retry: while (umount2(dir, MNT_DETACH) == 0) { } dp = opendir(dir); if (dp == NULL) { if (errno == EMFILE) { exit(1); } exit(1); } while ((ep = readdir(dp))) { if (strcmp(ep->d_name, ".") == 0 || strcmp(ep->d_name, "..") == 0) continue; char filename[FILENAME_MAX]; snprintf(filename, sizeof(filename), "%s/%s", dir, ep->d_name); while (umount2(filename, MNT_DETACH) == 0) { } struct stat st; if (lstat(filename, &st)) exit(1); if (S_ISDIR(st.st_mode)) { remove_dir(filename); continue; } int i; for (i = 0;; i++) { if (unlink(filename) == 0) break; if (errno == EPERM) { int fd = open(filename, O_RDONLY); if (fd != -1) { long flags = 0; if (ioctl(fd, FS_IOC_SETFLAGS, &flags) == 0) close(fd); continue; } } if (errno == EROFS) { break; } if (errno != EBUSY || i > 100) exit(1); if (umount2(filename, MNT_DETACH)) exit(1); } } closedir(dp); int i; for (i = 0;; i++) { if (rmdir(dir) == 0) break; if (i < 100) { if (errno == EPERM) { int fd = open(dir, O_RDONLY); if (fd != -1) { long flags = 0; if (ioctl(fd, FS_IOC_SETFLAGS, &flags) == 0) close(fd); continue; } } if (errno == EROFS) { break; } if (errno == EBUSY) { if (umount2(dir, MNT_DETACH)) exit(1); continue; } if (errno == ENOTEMPTY) { if (iter < 100) { iter++; goto retry; } } } exit(1); } } static void kill_and_wait(int pid, int* status) { kill(-pid, SIGKILL); kill(pid, SIGKILL); int i; for (i = 0; i < 100; i++) { if (waitpid(-1, status, WNOHANG | __WALL) == pid) return; usleep(1000); } DIR* dir = opendir("/sys/fs/fuse/connections"); if (dir) { for (;;) { struct dirent* ent = readdir(dir); if (!ent) break; if (strcmp(ent->d_name, ".") == 0 || strcmp(ent->d_name, "..") == 0) continue; char abort[300]; snprintf(abort, sizeof(abort), "/sys/fs/fuse/connections/%s/abort", ent->d_name); int fd = open(abort, O_WRONLY); if (fd == -1) { continue; } if (write(fd, abort, 1) < 0) { } close(fd); } closedir(dir); } else { } while (waitpid(-1, status, __WALL) != pid) { } } static void setup_test() { prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0); setpgrp(); write_file("/proc/self/oom_score_adj", "1000"); } static void close_fds() { int fd; for (fd = 3; fd < 30; fd++) close(fd); } static void execute_one(void); #define WAIT_FLAGS __WALL static void loop(void) { int iter; for (iter = 0;; 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); setup_test(); execute_one(); close_fds(); 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[1] = {0xffffffffffffffff}; void execute_one(void) { intptr_t res = 0; memcpy( (void*)0x20000440, "\x12\x01\x00\x00\x12\x09\x1f\x08\xc0\x07\x01\x15\xa0\x74\x00\x00\x00\x01" "\x09\x02\x1b\x00\x03\x00\x00\x00\x00\x09\x04\xec\x00\x01\x50\x6d\x30\x00" "\x07\x05\x81\x8a\x7c\x29\x84\x63\x89\x56\xd3\x2d\x01\xd3\xb0\xf0\x96\x58" "\x85\xfc\xec\x09\xba\x0e\x36\x54\xbb\xa6\x49\x2e\x7c\xa6\xfa\xc3\x13\x6c" "\x3b\x2e\x10\x75\xed\xf8\xd5\x47\xec\x1b\x71\x59\xb2\x29\x1f\xdb\x69\x9f" "\x0c\xbf\x95\x71\x03\x33\xa1\x72\xe5\xe1\x6f\xff\xfb\xe2\x16\x71\x93\x87" "\xfa\x36\x13\x78\x5b\x28\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x7f\xd9\x02\x94\x2a\xa4\x2a\x2d\x0a\xca" "\xf3\xb8\x43\xfd\x3c\xeb\xb0\x28\x4c\x68\x04\xe1\x00\x3b\x25\xbb\x66\x62" "\x04\xf7\x28\xd2\x2c\x4c\xcf\x6b\xbc\x17\x07\x3a\x1f\x00\x00\x00\xae\xb1" "\x5e\xf1\xbe\xe1\x60\x19\xd7\xdc\xa8\xfb\x7d\xdc\x07\x25\xc6\x68\x24\x2c" "\x2a\x18\xa9\x05\x68\x72\x98\x10\xef\xb8\x52\x4a\x3b\x51\x43\xe5\x66\x73" "\xc4\x27\xe1\x4c\x0a\xb0\xbe\x41\xf1\x6c\x9d\x54\x7c\xfe\xdb\x3e\x3f\xcb" "\x1e\xa4\xd0\xc3\x1c\x3c\xd9\x93\xfc\x4f\x13\x34\x8c\x42\xe1\xb2\x08\x00" "\x00\x00\x3b\x52\xe2\x12\xf4\x59\xa4\xca\xb3\xa1\x19\x0b\x8a\x94\x4a\x07" "\xc4\xba\x5c\x3d\x2d\xef\x05\x5f\x97\xce\xfb\xe1\x6f\xed\xbf\xbe\xa5\xc1" "\x92\x0e\x96\xef\xb4\xcf\x8b\x93\x2a\xd9\x71\xfd\x3f\x42\x9c\xdd\x75\x95" "\xa4\x76\xc7\x72\x54\x4b\xa8\xa5\xf2\x0d\x14\xf6\x6a\x07\x9d\x94\xed\x38" "\x44\xc7\x36\x04\xbd\x09\xb0\x2f\xe1\x94\x75\xb8\xaa\x89\x9d\xfb\xe1\xa2" "\x00\x00\x00\x00\x00\x00\x00\x19\x67\x11\xea\xe7\x47\x86\x65\xf0\x86\xb2" "\x65\xf3\x0e\x57\x1e\xfa\xdf\xf0\xd1\x60\xba\x67\xdf\x4c\xc3\xb2\x21\x21" "\x25\x35\xee\xcb\x6a\xc6\x18\xf2\xd2\x04\xb7\xac\xec\x54\xcd\x67\xa0\x06" "\x2a\x14\x46\xf8\xff\xff\xff\x57\xe1\xf6\x15\xa3\xaf\x4e\x38\x89\x23\x78" "\x3f\x70\x7e\x63\x9a\xa3\xee\xc3\x12\x96\x34\x91\x0b\xf3\x09\xb6\x9b\xb5" "\xdf\x6c\x2e\xf4\x20\x17\xbe\x56\xda\x68\x44\x90\x85\x49\x74\x6c\xe4\xbe" "\x41\xec\xce\x5d\x57\x64\x57\xa1\xb1\x8a\xdd\x7f\xc1\x7e\x5a\xab\x45\xea" "\x89\xb3\xcf\xdf\xfc\xb6\x25\xe1\x12\xda\xe9\x51\x15\xcc\x3c\x10\xc3\x3d" "\xae\xac\xac\xde\x3d\x2b\xab\xcf\x10\xb1\xf6\x7a\x1c\x8d\xb1\x71\x53\x18" "\xd4\xb6\x50\xca\xff\x54\x06\x64\xe1\x67\x9c\x53\x55\x49\xbb\xc1\xbf\x82" "\xa3\xb6\x01\xb5\x54\xba\x06\x12\xc1\x90\x97\x71\xfd\xf4\x55\x7e\xe4\xa5" "\x38\xb1\xa2\xe5\x0e\x00\x02\x00\x00\xc9\x82\xd7\x79\xb9\x6a\x6a\xb1\x5d" "\x5d\x35\xb5\xd7\x88\x9c\xfa\x4f\xf5\xe4\x71\x96\x28\x14\x32\x56\x3b\xa3" "\x88\x1d\xfd\x4b\xb6\x51\x7d\x91\x7d\xf8\x34\x35\xf0\x08\x6e\xb4\x27\x5a" "\xe4\x6a\xb3\xc3\x61\xb6\x0f\x29\x06\x25\x2c\x7d\x28\x0c\x95\xdb\x70\x4e" "\xb6\x08\x1f\xdb\xea\xd5\xea\x50\x33\x71\x1a\xdc\xc7\x5b\x18\xd3\x21\x64" "\x8f\x34\xbb\x6a\x26\xa9\x61\xe5\x3a\x15\x1f\x14\x9e\xa0\x7a\x4b\x06\x6e" "\xca\x42\x0b\x33\x88\x35\xdf\x8a\xae\x0c\x1c\x3e\x86\x9f\x37\x75\xc6\x9b" "\xd1\x03\x0c\x9b\x0f\x85\xfb\x97\xe0\x2f\x81\xa1\x7d\x15\x7a\x6a\x40\x34" "\x81\xd5\x1a\x01\x54\x2b\x94\xa9\x13\x6d\x7c\x93\x50\xad\x81\x04\x87\xeb" "\x57\x19\xac\xb9\x43\x39\x2e\x4f\x24\x79\xdc\xac\xc2\x2a\xfa\xea\x57\x8c" "\xc8\xd1\x23\x04\x9f\x4b\xde\x8a\x79\x24\xbf\xa5\xcd\x95\x7f\x21\xc9\xbf" "\xd5\xae\x2d\x6c\xcb\x39\x25\x59\x0a\xd3\x13\x5d\x65\xe8\x34\x38\x7e\x7b" "\x90\xcf\x92\x66\x5b\xf4\x41\xca\xea\xf4\x3f\x2a\xbc\x78\x8f\xef\x84\xa7" "\x86\x80\xc4\xf5\x6f\x47\x0f\xe9\xb9\x4d\x2f\x08\x23\xcc\xe6\x04\xd8\xc0" "\x8b\xba\x1d\x6a\xd0\xa7\x61\x59\x68\x84\xaa\xbb\xcb\x60\x48\x23\xa4\x57" "\xd2\x33\xe4\x6c\xf4\x11\xcd\x54\x24\xa5\xa5\x30\xee\x7e\x74\x5c\xe9\xe4" "\x3e\xe8\x38\xd5\x96\x54\xcc\x7f\x98\xb6\xce\x47\x8d\xd3\x7f\x4d\xac\xbd" "\x8b\x33\xdb\x8d\x1d\x72\xc6\xf9\xc6\x24\xd4\x6d\xde", 859); syz_usb_connect(1, 0x2d, 0x20000440, 0); res = syz_open_dev(0xc, 0xb4, 0); if (res != -1) r[0] = res; memcpy((void*)0x20000000, "\x75\xe8\x5c\x2c\x8f\xd6\xc7\xcf", 8); syscall(__NR_write, r[0], 0x20000000, 8); } int main(void) { syscall(__NR_mmap, 0x20000000, 0x1000000, 3, 0x32, -1, 0); for (procid = 0; procid < 6; procid++) { if (fork() == 0) { use_temporary_dir(); do_sandbox_none(); } } sleep(1000000); return 0; }