// https://syzkaller.appspot.com/bug?id=30716337d21954f2e093d904107988400c0778dd // 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 #ifndef __NR_memfd_create #define __NR_memfd_create 319 #endif static unsigned long long procid; static void sleep_ms(uint64_t ms) { usleep(ms * 1000); } static uint64_t current_time_ms(void) { struct timespec ts; if (clock_gettime(CLOCK_MONOTONIC, &ts)) exit(1); return (uint64_t)ts.tv_sec * 1000 + (uint64_t)ts.tv_nsec / 1000000; } static void use_temporary_dir(void) { char tmpdir_template[] = "./syzkaller.XXXXXX"; char* tmpdir = mkdtemp(tmpdir_template); if (!tmpdir) exit(1); if (chmod(tmpdir, 0777)) exit(1); if (chdir(tmpdir)) exit(1); } static 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 { int state; } event_t; static void event_init(event_t* ev) { ev->state = 0; } static void event_reset(event_t* ev) { ev->state = 0; } static void event_set(event_t* ev) { if (ev->state) exit(1); __atomic_store_n(&ev->state, 1, __ATOMIC_RELEASE); syscall(SYS_futex, &ev->state, FUTEX_WAKE | FUTEX_PRIVATE_FLAG, 1000000); } static void event_wait(event_t* ev) { while (!__atomic_load_n(&ev->state, __ATOMIC_ACQUIRE)) syscall(SYS_futex, &ev->state, FUTEX_WAIT | FUTEX_PRIVATE_FLAG, 0, 0); } static int event_isset(event_t* ev) { return __atomic_load_n(&ev->state, __ATOMIC_ACQUIRE); } static int event_timedwait(event_t* ev, uint64_t timeout) { uint64_t start = current_time_ms(); uint64_t now = start; for (;;) { uint64_t remain = timeout - (now - start); struct timespec ts; ts.tv_sec = remain / 1000; ts.tv_nsec = (remain % 1000) * 1000 * 1000; syscall(SYS_futex, &ev->state, FUTEX_WAIT | FUTEX_PRIVATE_FLAG, 0, &ts); if (__atomic_load_n(&ev->state, __ATOMIC_ACQUIRE)) return 1; now = current_time_ms(); if (now - start > timeout) return 0; } } 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; } //% This code is derived from puff.{c,h}, found in the zlib development. The //% original files come with the following copyright notice: //% Copyright (C) 2002-2013 Mark Adler, all rights reserved //% version 2.3, 21 Jan 2013 //% This software is provided 'as-is', without any express or implied //% warranty. In no event will the author be held liable for any damages //% arising from the use of this software. //% Permission is granted to anyone to use this software for any purpose, //% including commercial applications, and to alter it and redistribute it //% freely, subject to the following restrictions: //% 1. The origin of this software must not be misrepresented; you must not //% claim that you wrote the original software. If you use this software //% in a product, an acknowledgment in the product documentation would be //% appreciated but is not required. //% 2. Altered source versions must be plainly marked as such, and must not be //% misrepresented as being the original software. //% 3. This notice may not be removed or altered from any source distribution. //% Mark Adler madler@alumni.caltech.edu //% BEGIN CODE DERIVED FROM puff.{c,h} #define MAXBITS 15 #define MAXLCODES 286 #define MAXDCODES 30 #define MAXCODES (MAXLCODES + MAXDCODES) #define FIXLCODES 288 struct puff_state { unsigned char* out; unsigned long outlen; unsigned long outcnt; const unsigned char* in; unsigned long inlen; unsigned long incnt; int bitbuf; int bitcnt; jmp_buf env; }; static int puff_bits(struct puff_state* s, int need) { long val = s->bitbuf; while (s->bitcnt < need) { if (s->incnt == s->inlen) longjmp(s->env, 1); val |= (long)(s->in[s->incnt++]) << s->bitcnt; s->bitcnt += 8; } s->bitbuf = (int)(val >> need); s->bitcnt -= need; return (int)(val & ((1L << need) - 1)); } static int puff_stored(struct puff_state* s) { s->bitbuf = 0; s->bitcnt = 0; if (s->incnt + 4 > s->inlen) return 2; unsigned len = s->in[s->incnt++]; len |= s->in[s->incnt++] << 8; if (s->in[s->incnt++] != (~len & 0xff) || s->in[s->incnt++] != ((~len >> 8) & 0xff)) return -2; if (s->incnt + len > s->inlen) return 2; if (s->outcnt + len > s->outlen) return 1; for (; len--; s->outcnt++, s->incnt++) { if (s->in[s->incnt]) s->out[s->outcnt] = s->in[s->incnt]; } return 0; } struct puff_huffman { short* count; short* symbol; }; static int puff_decode(struct puff_state* s, const struct puff_huffman* h) { int first = 0; int index = 0; int bitbuf = s->bitbuf; int left = s->bitcnt; int code = first = index = 0; int len = 1; short* next = h->count + 1; while (1) { while (left--) { code |= bitbuf & 1; bitbuf >>= 1; int count = *next++; if (code - count < first) { s->bitbuf = bitbuf; s->bitcnt = (s->bitcnt - len) & 7; return h->symbol[index + (code - first)]; } index += count; first += count; first <<= 1; code <<= 1; len++; } left = (MAXBITS + 1) - len; if (left == 0) break; if (s->incnt == s->inlen) longjmp(s->env, 1); bitbuf = s->in[s->incnt++]; if (left > 8) left = 8; } return -10; } static int puff_construct(struct puff_huffman* h, const short* length, int n) { int len; for (len = 0; len <= MAXBITS; len++) h->count[len] = 0; int symbol; for (symbol = 0; symbol < n; symbol++) (h->count[length[symbol]])++; if (h->count[0] == n) return 0; int left = 1; for (len = 1; len <= MAXBITS; len++) { left <<= 1; left -= h->count[len]; if (left < 0) return left; } short offs[MAXBITS + 1]; offs[1] = 0; for (len = 1; len < MAXBITS; len++) offs[len + 1] = offs[len] + h->count[len]; for (symbol = 0; symbol < n; symbol++) if (length[symbol] != 0) h->symbol[offs[length[symbol]]++] = symbol; return left; } static int puff_codes(struct puff_state* s, const struct puff_huffman* lencode, const struct puff_huffman* distcode) { static const short lens[29] = {3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 15, 17, 19, 23, 27, 31, 35, 43, 51, 59, 67, 83, 99, 115, 131, 163, 195, 227, 258}; static const short lext[29] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 0}; static const short dists[30] = { 1, 2, 3, 4, 5, 7, 9, 13, 17, 25, 33, 49, 65, 97, 129, 193, 257, 385, 513, 769, 1025, 1537, 2049, 3073, 4097, 6145, 8193, 12289, 16385, 24577}; static const short dext[30] = {0, 0, 0, 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7, 8, 8, 9, 9, 10, 10, 11, 11, 12, 12, 13, 13}; int symbol; do { symbol = puff_decode(s, lencode); if (symbol < 0) return symbol; if (symbol < 256) { if (s->outcnt == s->outlen) return 1; if (symbol) s->out[s->outcnt] = symbol; s->outcnt++; } else if (symbol > 256) { symbol -= 257; if (symbol >= 29) return -10; int len = lens[symbol] + puff_bits(s, lext[symbol]); symbol = puff_decode(s, distcode); if (symbol < 0) return symbol; unsigned dist = dists[symbol] + puff_bits(s, dext[symbol]); if (dist > s->outcnt) return -11; if (s->outcnt + len > s->outlen) return 1; while (len--) { if (dist <= s->outcnt && s->out[s->outcnt - dist]) s->out[s->outcnt] = s->out[s->outcnt - dist]; s->outcnt++; } } } while (symbol != 256); return 0; } static int puff_fixed(struct puff_state* s) { static int virgin = 1; static short lencnt[MAXBITS + 1], lensym[FIXLCODES]; static short distcnt[MAXBITS + 1], distsym[MAXDCODES]; static struct puff_huffman lencode, distcode; if (virgin) { lencode.count = lencnt; lencode.symbol = lensym; distcode.count = distcnt; distcode.symbol = distsym; short lengths[FIXLCODES]; int symbol; for (symbol = 0; symbol < 144; symbol++) lengths[symbol] = 8; for (; symbol < 256; symbol++) lengths[symbol] = 9; for (; symbol < 280; symbol++) lengths[symbol] = 7; for (; symbol < FIXLCODES; symbol++) lengths[symbol] = 8; puff_construct(&lencode, lengths, FIXLCODES); for (symbol = 0; symbol < MAXDCODES; symbol++) lengths[symbol] = 5; puff_construct(&distcode, lengths, MAXDCODES); virgin = 0; } return puff_codes(s, &lencode, &distcode); } static int puff_dynamic(struct puff_state* s) { static const short order[19] = {16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15}; int nlen = puff_bits(s, 5) + 257; int ndist = puff_bits(s, 5) + 1; int ncode = puff_bits(s, 4) + 4; if (nlen > MAXLCODES || ndist > MAXDCODES) return -3; short lengths[MAXCODES]; int index; for (index = 0; index < ncode; index++) lengths[order[index]] = puff_bits(s, 3); for (; index < 19; index++) lengths[order[index]] = 0; short lencnt[MAXBITS + 1], lensym[MAXLCODES]; struct puff_huffman lencode = {lencnt, lensym}; int err = puff_construct(&lencode, lengths, 19); if (err != 0) return -4; index = 0; while (index < nlen + ndist) { int symbol; int len; symbol = puff_decode(s, &lencode); if (symbol < 0) return symbol; if (symbol < 16) lengths[index++] = symbol; else { len = 0; if (symbol == 16) { if (index == 0) return -5; len = lengths[index - 1]; symbol = 3 + puff_bits(s, 2); } else if (symbol == 17) symbol = 3 + puff_bits(s, 3); else symbol = 11 + puff_bits(s, 7); if (index + symbol > nlen + ndist) return -6; while (symbol--) lengths[index++] = len; } } if (lengths[256] == 0) return -9; err = puff_construct(&lencode, lengths, nlen); if (err && (err < 0 || nlen != lencode.count[0] + lencode.count[1])) return -7; short distcnt[MAXBITS + 1], distsym[MAXDCODES]; struct puff_huffman distcode = {distcnt, distsym}; err = puff_construct(&distcode, lengths + nlen, ndist); if (err && (err < 0 || ndist != distcode.count[0] + distcode.count[1])) return -8; return puff_codes(s, &lencode, &distcode); } static int puff(unsigned char* dest, unsigned long* destlen, const unsigned char* source, unsigned long sourcelen) { struct puff_state s = { .out = dest, .outlen = *destlen, .outcnt = 0, .in = source, .inlen = sourcelen, .incnt = 0, .bitbuf = 0, .bitcnt = 0, }; int err; if (setjmp(s.env) != 0) err = 2; else { int last; do { last = puff_bits(&s, 1); int type = puff_bits(&s, 2); err = type == 0 ? puff_stored(&s) : (type == 1 ? puff_fixed(&s) : (type == 2 ? puff_dynamic(&s) : -1)); if (err != 0) break; } while (!last); } *destlen = s.outcnt; return err; } //% END CODE DERIVED FROM puff.{c,h} #define ZLIB_HEADER_WIDTH 2 static int puff_zlib_to_file(const unsigned char* source, unsigned long sourcelen, int dest_fd) { if (sourcelen < ZLIB_HEADER_WIDTH) return 0; source += ZLIB_HEADER_WIDTH; sourcelen -= ZLIB_HEADER_WIDTH; const unsigned long max_destlen = 132 << 20; void* ret = mmap(0, max_destlen, PROT_WRITE | PROT_READ, MAP_PRIVATE | MAP_ANON, -1, 0); if (ret == MAP_FAILED) return -1; unsigned char* dest = (unsigned char*)ret; unsigned long destlen = max_destlen; int err = puff(dest, &destlen, source, sourcelen); if (err) { munmap(dest, max_destlen); errno = -err; return -1; } if (write(dest_fd, dest, destlen) != (ssize_t)destlen) { munmap(dest, max_destlen); return -1; } return munmap(dest, max_destlen); } static int setup_loop_device(unsigned char* data, unsigned long size, const char* loopname, int* loopfd_p) { int err = 0, loopfd = -1; int memfd = syscall(__NR_memfd_create, "syzkaller", 0); if (memfd == -1) { err = errno; goto error; } if (puff_zlib_to_file(data, size, memfd)) { err = errno; goto error_close_memfd; } loopfd = open(loopname, O_RDWR); if (loopfd == -1) { err = errno; goto error_close_memfd; } if (ioctl(loopfd, LOOP_SET_FD, memfd)) { if (errno != EBUSY) { err = errno; goto error_close_loop; } ioctl(loopfd, LOOP_CLR_FD, 0); usleep(1000); if (ioctl(loopfd, LOOP_SET_FD, memfd)) { err = errno; goto error_close_loop; } } close(memfd); *loopfd_p = loopfd; return 0; error_close_loop: close(loopfd); error_close_memfd: close(memfd); error: errno = err; return -1; } static long syz_mount_image(volatile long fsarg, volatile long dir, volatile long flags, volatile long optsarg, volatile long change_dir, volatile unsigned long size, volatile long image) { unsigned char* data = (unsigned char*)image; int res = -1, err = 0, loopfd = -1, need_loop_device = !!size; char* mount_opts = (char*)optsarg; char* target = (char*)dir; char* fs = (char*)fsarg; char* source = NULL; char loopname[64]; if (need_loop_device) { memset(loopname, 0, sizeof(loopname)); snprintf(loopname, sizeof(loopname), "/dev/loop%llu", procid); if (setup_loop_device(data, size, loopname, &loopfd) == -1) return -1; source = loopname; } mkdir(target, 0777); char opts[256]; memset(opts, 0, sizeof(opts)); if (strlen(mount_opts) > (sizeof(opts) - 32)) { } strncpy(opts, mount_opts, sizeof(opts) - 32); if (strcmp(fs, "iso9660") == 0) { flags |= MS_RDONLY; } else if (strncmp(fs, "ext", 3) == 0) { bool has_remount_ro = false; char* remount_ro_start = strstr(opts, "errors=remount-ro"); if (remount_ro_start != NULL) { char after = *(remount_ro_start + strlen("errors=remount-ro")); char before = remount_ro_start == opts ? '\0' : *(remount_ro_start - 1); has_remount_ro = ((before == '\0' || before == ',') && (after == '\0' || after == ',')); } if (strstr(opts, "errors=panic") || !has_remount_ro) strcat(opts, ",errors=continue"); } else if (strcmp(fs, "xfs") == 0) { strcat(opts, ",nouuid"); } res = mount(source, target, fs, flags, opts); if (res == -1) { err = errno; goto error_clear_loop; } res = open(target, O_RDONLY | O_DIRECTORY); if (res == -1) { err = errno; goto error_clear_loop; } if (change_dir) { res = chdir(target); if (res == -1) { err = errno; } } error_clear_loop: if (need_loop_device) { ioctl(loopfd, LOOP_CLR_FD, 0); close(loopfd); } errno = err; return res; } #define FS_IOC_SETFLAGS _IOW('f', 2, long) static void remove_dir(const char* dir) { int iter = 0; DIR* dp = 0; retry: while (umount2(dir, MNT_DETACH | UMOUNT_NOFOLLOW) == 0) { } dp = opendir(dir); if (dp == NULL) { if (errno == EMFILE) { exit(1); } 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); while (umount2(filename, MNT_DETACH | UMOUNT_NOFOLLOW) == 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 | UMOUNT_NOFOLLOW)) exit(1); } } closedir(dp); for (int 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 | UMOUNT_NOFOLLOW)) 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); for (int 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 reset_loop() { char buf[64]; snprintf(buf, sizeof(buf), "/dev/loop%llu", procid); int loopfd = open(buf, O_RDWR); if (loopfd != -1) { ioctl(loopfd, LOOP_CLR_FD, 0); close(loopfd); } } static void setup_test() { prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0); setpgrp(); write_file("/proc/self/oom_score_adj", "1000"); if (symlink("/dev/binderfs", "./binderfs")) { } } 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 < 6; call++) { for (thread = 0; thread < (int)(sizeof(threads) / sizeof(threads[0])); thread++) { struct thread_t* th = &threads[thread]; if (!th->created) { th->created = 1; event_init(&th->ready); event_init(&th->done); event_set(&th->done); thread_start(thr, th); } if (!event_isset(&th->done)) continue; event_reset(&th->done); th->call = call; __atomic_fetch_add(&running, 1, __ATOMIC_RELAXED); event_set(&th->ready); if (call == 3) break; event_timedwait(&th->done, 50 + (call == 0 ? 4000 : 0)); break; } } for (i = 0; i < 100 && __atomic_load_n(&running, __ATOMIC_RELAXED); i++) sleep_ms(1); } static void execute_one(void); #define WAIT_FLAGS __WALL static void loop(void) { int iter = 0; for (;; iter++) { char cwdbuf[32]; sprintf(cwdbuf, "./%d", iter); if (mkdir(cwdbuf, 0777)) exit(1); reset_loop(); int pid = fork(); if (pid < 0) exit(1); if (pid == 0) { if (chdir(cwdbuf)) exit(1); setup_test(); execute_one(); exit(0); } int status = 0; uint64_t start = current_time_ms(); for (;;) { if (waitpid(-1, &status, WNOHANG | WAIT_FLAGS) == pid) break; sleep_ms(1); if (current_time_ms() - start < 5000) continue; kill_and_wait(pid, &status); break; } remove_dir(cwdbuf); } } uint64_t r[2] = {0xffffffffffffffff, 0xffffffffffffffff}; void execute_call(int call) { intptr_t res = 0; switch (call) { case 0: memcpy((void*)0x20001080, "ext4\000", 5); memcpy((void*)0x20000480, "./file0\000", 8); *(uint64_t*)0x200010c0 = 0; sprintf((char*)0x200010c8, "%023llo", (long long)0); sprintf((char*)0x200010df, "%023llo", (long long)0); *(uint64_t*)0x200010f6 = 0; *(uint8_t*)0x200010fe = -1; sprintf((char*)0x200010ff, "%023llo", (long long)-1); memcpy( (void*)0x20001116, "\x77\xa9\x6c\x72\xdb\x2e\x0d\x95\x9e\x32\x45\xf4\x58\x5e\x51\xbe\x9a" "\xeb\x24\x08\x5f\x92\x89\x58\xa6\xe7\x0f\x34\x48\xee\xd2\x26\xbc\x46" "\x44\x6d\xf9\x06\x00\x00\x00\x00\x01\x8d\xa4\x1c\xec\x0e\x63\xd1\x9b" "\x6d\xa8\x43\xb4\x6e\x6d\x2d\xbc\x90\xda\x91\xbc\x76\xc5\x5d\x4f\x5a" "\x03\x80\x18\xe8\xb2\x65\xbd\xed\x8e\xd1\xf9\x62\x28\x94\xbd\xe8\x78" "\x05\xa0\x84\x0b\xc3\x7c\xa0\x15\x50\x0a\x00\x91\x11\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xf2\xcc" "\x7c\x67\x35\x66\x16\xbe\x68\xa9\x44\x90\xd5\x21\xa7\xf5\xd1\x66\x0c" "\xc7\xe6\xf7\xe2\x2f\x75\xf5\x9a\xa3\xe6", 146); memcpy( (void*)0x200011a8, "\x61\x0d\x12\x83\x0e\x33\x2d\x9a\x69\xf0\x56\xc7\x19\xc9\x32\x7b\xaa" "\x03\xbe\x43\x82\xc6\x55\x4f\x07\x0c\x47\xea\x0d\x94\xef\xdc\x7d\x24" "\xb8\x4b\x18\x38\xb9\x43\x87\x07\xca\xe1\xb6\xce\x58\xab\x4a\x62\xd4" "\x0b\x19\xc2\xfc\x94\x8f\xb9\xad\x2d\x5f\xb0\x04\x86\x70\xfd\x6e\x1e" "\xbf\x35\xb7\x78\x30\x98\x98\xf5\xcb\x79\xd0\x32\xcb\x90\x51\x0e\x7a" "\x3f\x2e\xf4\x3c\x43\x7b\x42\xf5\x3e\x71\x6b\x61\x37\x8d\xaf\x9b\x1c" "\x0a\x5c\xde\xad\x86\xcc\xb2\x33\xdc\x99\x01\x6a\x60\x29\x56\x02\x40" "\x9c\x51\x42\x11\x6b\xdc\xf1\x6e\x13\x94\xab\x5d\x0b\xc7\x58\x9f\x9c" "\x76\xa4\xa1\x27\x91\xfb\xd4\x17\x25\x08\xb9\x04\x00\xf9\x8b\xda\x75" "\xce\xb0\x0d\xfe\x3a\x28\x39\x72\xae\x6a\x63\x5e\x1c\x4f\x35\x66\x47" "\x9f\x28\x5f\xc8\xa7\xcd\xe2\x05\x86\x85\xa5\xaf\xae\xc3\xf6\x94\x3e" "\x9e\x3f\x91\x8e\x1e\xa9\x16\x70\x25\x62\xb1\x92\xe6\x14\x63\x20\x5f" "\x0c\x30\xd1\x3b\xfc\x54\x4e\x95\x2c\x89\x82\xa5\xfa\x65\xe9\xdc\x37" "\xf3\x18\x25\xe0\x32\xe0\x9b\x39\x74\xd9\x89\x81\xf8\xb4\x0c\x21\xbe" "\x80\x30\xb8\xc0\x35\xc6\x8c\xd3\x5e\xae\x5a\x73\xa6\xf1\xad\x20\x5f" "\x97\x5f\x05\xfe\xef\x5d\x75\x08\xcf\xe4\x0b\xfd\xdb\x2f\xe2\x89\xe9" "\x57\x16\xf4\x5f\x2e\x59\xb9\xca\x46\xe3\x25\x38\x86\xc8\x18\x85\x59" "\xf0\x6c\xf7\x90\x01\x08\x6d\xfa\x56\xaf\xdb\xd8\xbd\xd5\xd7\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\xc5\x6a\x40\x12\x7f\x94\x2a\x98" "\xfb\xc1\x6d\x21\x8e\xb3\x01\x4a\xfc\xaa\x93\x57\xbf\x3a\xe5\xfb\x36", 340); *(uint16_t*)0x200012fc = -1; memcpy( (void*)0x20000ac0, "\x78\x9c\xec\xdc\xcb\x6b\x1d\x55\x18\x00\xf0\x6f\x26\x8f\x62\x5a\x4d" "\xd4\xf8\xaa\xad\x46\x5b\xdb\x68\x35\x31\xa9\x46\x05\x29\x64\xe7\x22" "\xe8\x42\x17\x6e\x2f\x49\x1a\x8b\x79\x68\x13\xc1\x96\x22\x2d\xb8\x70" "\x2b\xd8\x3f\x40\x71\x6b\xff\x04\x51\xc1\xc7\x46\x57\xd2\xad\x8a\x2e" "\xb4\x10\xa4\xc9\xa2\x0b\x91\xc8\xdc\x47\x72\xf3\xb8\x69\x6e\x9b\x74" "\x62\xe7\xf7\x83\xb9\x3d\x67\x66\x6e\xcf\x99\x39\x7c\x33\x77\x4e\x3e" "\x26\x80\xc2\xea\xc9\x3e\x92\x88\x7d\x11\xf1\x73\x44\x74\x56\xaa\xab" "\x77\xe8\xa9\xfc\xb3\x78\xf5\xdc\x68\xb6\x24\xb1\xb4\xf4\xfa\xdf\x49" "\x79\xbf\x85\xab\xe7\x46\x6b\xbb\xd6\xbe\xb7\x37\xfb\x48\x23\x7a\xd3" "\x88\xf4\xc3\x24\x1e\xde\xa0\xdd\xd9\x33\x67\xdf\x2e\x4d\x4e\x8e\x9f" "\xae\xd6\xfb\xe7\xa6\xde\xe9\x9f\x3d\x73\xf6\x99\x53\x53\xa5\x89\xf1" "\x89\xf1\xe9\x81\xe3\x03\x43\x43\x2f\x3c\xff\xe2\xe0\xc0\xb6\x1d\xeb" "\x2b\x3f\x2d\xfe\xf1\x59\xeb\xab\xd3\x9f\x5f\x5c\x98\xbe\x76\x62\xb0" "\x23\xeb\xef\xbe\xea\xb6\xfa\xe3\xd8\x2e\x3d\xd1\xb3\xfa\x5c\xd6\x39" "\xb2\xdd\x8d\xe5\xec\xbe\xba\x72\xd2\x9a\x63\x47\x68\x4a\x4b\x44\x64" "\xc3\xd5\x56\x8e\xff\xce\x68\x89\x95\xc1\xeb\x8c\xef\x7f\xcd\xb5\x73" "\xc0\x8e\x5a\xca\xec\x69\xb8\xf9\xfc\x12\x70\x1b\x4b\x22\xef\x1e\x00" "\xf9\xa8\xdd\xe8\xb3\xe7\xdf\xda\x72\xab\x7e\x7b\x90\xbf\xf9\xe1\xca" "\x03\xe0\x42\x75\x6e\x67\x71\x79\xfc\x5b\x23\xad\x14\xde\x3d\xf2\xed" "\xd7\xab\x9e\xef\xb7\x53\x4f\x44\xbc\x39\xf2\xda\xc1\x6c\x89\x1d\x9a" "\x87\x01\x00\x00\x00\x28\xb2\xaf\x86\x23\xe2\xe9\x8d\xe6\xff\xd2\xb8" "\xbf\x6e\xbf\xac\xfc\x40\x44\x3c\x18\x11\x0f\x45\xc4\xfe\x88\x72\x5e" "\xcf\x81\x88\x38\x18\x11\x8f\x44\xc4\xa3\xb5\x7c\xa2\x26\xac\xdd\x7f" "\xfd\xfc\x4f\x7a\xe5\x86\x0e\x8c\x2d\x99\x1f\x8e\x78\xb9\x2e\xb7\x6b" "\xb1\x6e\xfc\xab\xba\x5a\xaa\xb5\x3b\xb3\x4a\xb4\x25\x27\x4f\x4d\x8e" "\x3f\x1b\x11\x77\x45\x44\x6f\xb4\xed\xc9\xea\x9b\x65\x69\x4d\xbd\x55" "\xfa\xb1\xd1\xb6\xfa\xf9\xbf\x6c\xc9\xda\xaf\xcd\x05\x56\xfb\x71\xa5" "\x75\xcd\xdf\xa7\xc7\x4a\x73\xa5\x9b\x39\x66\x56\xcc\x5f\x88\xd8\xdf" "\xba\xd1\xf8\x27\xcb\x99\x40\x49\x44\x3c\x16\x11\x8f\x6f\xe5\x3f\xfc" "\xae\x9c\x51\x37\xd1\x7d\xe9\x9f\xe5\x55\x2f\x7d\x74\xef\xe5\x46\xbb" "\x5f\x7f\xfc\xd9\x49\x4b\x9f\x46\x1c\xdd\x30\xfe\x57\x32\x17\x93\xcd" "\xf3\x33\xfb\xcb\xd7\x83\xfe\xda\x55\x61\xbd\x1f\x2e\x0e\x7d\xd1\xa8" "\x7d\xe3\x9f\xaf\x2c\xfe\x3b\x36\x1f\xff\xae\xa4\x3e\x5f\x77\xb6\xf9" "\x36\xbe\xe9\xfe\xed\x97\x46\xdb\x6e\xf4\xfa\xdf\x9e\xbc\x51\xee\x60" "\x7b\x75\xdd\xfb\xa5\xb9\xb9\xd3\x03\x11\xed\xc9\xc8\xfa\xf5\x83\xcd" "\xf7\xf9\x76\x55\x3b\x1f\xb5\xf3\x95\x8d\x7f\xef\xa1\x8d\xef\xff\xf7" "\x54\xbf\x93\x9d\xd0\x43\x11\x71\x38\x22\x9e\xa8\xe6\x2e\x1f\x2d\xdf" "\xfb\x23\x9e\x8c\x88\xa7\x22\xe2\xd8\x26\x6d\x9e\x9f\xf8\xfd\xdf\x46" "\xdb\xc4\x7f\xbe\xb2\xf1\x1f\x6b\x2a\xfe\x9b\x2f\xfc\x75\xe1\xe3\xc3" "\x8d\xda\xdf\x5a\xfc\x3f\x57\xee\x4c\x6f\x75\x8d\xdf\x7f\xd7\xb7\xd5" "\x01\xca\xbb\x9f\x00\x00\x00\x00\x00\x00\x00\x6c\x8f\xb4\xfc\x0e\xbc" "\x24\xed\x5b\x2e\xa7\x69\x5f\x5f\xe5\x1d\x7e\xdd\xd1\x91\x4e\xce\xcc" "\xce\x1d\x3b\x39\xf3\xde\xf4\x58\xe5\x5d\x79\x5d\xd1\x96\xd6\x32\xbd" "\x3a\xeb\xf2\x41\x07\xca\xe5\x95\xfa\xe0\x9a\xfa\xf1\x88\xb8\x3b\x22" "\x3e\x69\xb9\xa3\x5c\xef\x1b\x9d\x99\x1c\xcb\xfb\xe0\xa1\xe0\xf6\x36" "\x88\xff\xcc\x9f\x2d\x79\xf7\x0e\xd8\x71\xde\xd7\x0a\xc5\x25\xfe\xa1" "\xb8\xc4\x3f\x14\x97\xf8\x87\xe2\x12\xff\x50\x5c\xe2\x1f\x8a\x4b\xfc" "\x43\x71\x89\x7f\x28\xae\xb5\xf1\xff\xc1\xe5\x91\x13\xd7\xbe\x3c\x70" "\x29\xa7\xee\x00\xb7\x90\xfb\x3f\x14\xd2\xcd\xbc\xd7\x4f\xe1\xff\x52" "\xa8\x8d\xf6\x6e\xe9\x8f\xc2\xee\x2f\xe4\x7b\x5d\x02\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xd8\x2d\xfe\x0b\x00\x00" "\xff\xff\x46\xc3\xcf\x6d", 1077); syz_mount_image(/*fs=*/0x20001080, /*dir=*/0x20000480, /*flags=*/2, /*opts=*/0x200010c0, /*chdir=*/3, /*size=*/0x435, /*img=*/0x20000ac0); break; case 1: memcpy((void*)0x20000000, "./bus\000", 6); res = syscall(__NR_open, /*file=*/0x20000000ul, /*flags=*/0x60142ul, /*mode=*/0ul); if (res != -1) r[0] = res; break; case 2: memcpy((void*)0x20000080, "./bus\000", 6); res = syscall(__NR_open, /*file=*/0x20000080ul, /*flags=*/0x185102ul, /*mode=*/0x3aul); if (res != -1) r[1] = res; break; case 3: *(uint32_t*)0x20000180 = 7; *(uint8_t*)0x20000184 = 0x7f; *(uint16_t*)0x20000185 = 0; syscall(__NR_write, /*fd=*/r[0], /*data=*/0x20000180ul, /*size=*/7ul); { int i; for (i = 0; i < 32; i++) { syscall(__NR_write, /*fd=*/r[0], /*data=*/0x20000180ul, /*size=*/7ul); } } break; case 4: syscall(__NR_mmap, /*addr=*/0x20000000ul, /*len=*/0xb36000ul, /*prot=*/2ul, /*flags=*/0x28011ul, /*fd=*/r[1], /*offset=*/0ul); break; case 5: *(uint32_t*)0x20000180 = htobe32(-1); *(uint32_t*)0x20000190 = htobe32(0xe0000002); *(uint16_t*)0x200001a0 = htobe16(0); *(uint16_t*)0x200001a2 = htobe16(0); *(uint16_t*)0x200001a4 = htobe16(0); *(uint16_t*)0x200001a6 = htobe16(0); *(uint16_t*)0x200001a8 = 2; *(uint8_t*)0x200001aa = 0; *(uint8_t*)0x200001ab = 0; *(uint8_t*)0x200001ac = 0; *(uint32_t*)0x200001b0 = 0; *(uint32_t*)0x200001b4 = 0; *(uint64_t*)0x200001b8 = 0; *(uint64_t*)0x200001c0 = 0; *(uint64_t*)0x200001c8 = 0; *(uint64_t*)0x200001d0 = 0; *(uint64_t*)0x200001d8 = 0; *(uint64_t*)0x200001e0 = 0; *(uint64_t*)0x200001e8 = 0; *(uint64_t*)0x200001f0 = 0; *(uint64_t*)0x200001f8 = 0; *(uint64_t*)0x20000200 = 5; *(uint64_t*)0x20000208 = 0; *(uint64_t*)0x20000210 = 0; *(uint32_t*)0x20000218 = 0; *(uint32_t*)0x2000021c = 0; *(uint8_t*)0x20000220 = 1; *(uint8_t*)0x20000221 = 0; *(uint8_t*)0x20000222 = 0; *(uint8_t*)0x20000223 = 0; *(uint8_t*)0x20000228 = 0xac; *(uint8_t*)0x20000229 = 0x1e; *(uint8_t*)0x2000022a = 0; *(uint8_t*)0x2000022b = 1; *(uint32_t*)0x20000238 = htobe32(0); *(uint8_t*)0x2000023c = 0x32; *(uint16_t*)0x20000240 = 2; memset((void*)0x20000244, 0, 10); memset((void*)0x2000024e, 255, 2); *(uint8_t*)0x20000250 = 0xac; *(uint8_t*)0x20000251 = 0x1e; *(uint8_t*)0x20000252 = 8; *(uint8_t*)0x20000253 = 1; *(uint32_t*)0x20000254 = 0; *(uint8_t*)0x20000258 = 0; *(uint8_t*)0x20000259 = 0; *(uint8_t*)0x2000025a = 1; *(uint32_t*)0x2000025c = 0; *(uint32_t*)0x20000260 = 0; *(uint32_t*)0x20000264 = 4; syscall(__NR_setsockopt, /*fd=*/-1, /*level=*/0x29, /*optname=*/0x23, /*optval=*/0x20000180ul, /*optlen=*/0xe8ul); break; } } int main(void) { syscall(__NR_mmap, /*addr=*/0x1ffff000ul, /*len=*/0x1000ul, /*prot=*/0ul, /*flags=*/0x32ul, /*fd=*/-1, /*offset=*/0ul); syscall(__NR_mmap, /*addr=*/0x20000000ul, /*len=*/0x1000000ul, /*prot=*/7ul, /*flags=*/0x32ul, /*fd=*/-1, /*offset=*/0ul); syscall(__NR_mmap, /*addr=*/0x21000000ul, /*len=*/0x1000ul, /*prot=*/0ul, /*flags=*/0x32ul, /*fd=*/-1, /*offset=*/0ul); use_temporary_dir(); loop(); return 0; }