// https://syzkaller.appspot.com/bug?id=6ff79a13ea188e28f1d76ce8093f6b3c24530a0a // 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 void reset_loop_device(const char* loopname) { int loopfd = open(loopname, O_RDONLY); if (loopfd == -1) { return; } if (ioctl(loopfd, LOOP_CLR_FD, 0)) { } close(loopfd); } 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, 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) { int loopfd; memset(loopname, 0, sizeof(loopname)); snprintf(loopname, sizeof(loopname), "/dev/loop%llu", procid); if (setup_loop_device(data, size, loopname, &loopfd) == -1) return -1; close(loopfd); 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"); } else if (strncmp(fs, "gfs2", 4) == 0 && (strstr(opts, "errors=panic") || strstr(opts, "debug"))) { strcat(opts, ",errors=withdraw"); } 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) { if (chdir(target) == -1) { err = errno; close(res); res = -1; } } error_clear_loop: if (need_loop_device) reset_loop_device(loopname); 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; const int umount_flags = MNT_FORCE | UMOUNT_NOFOLLOW; retry: while (umount2(dir, umount_flags) == 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, umount_flags) == 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, umount_flags)) 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, umount_flags)) 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_RDONLY); 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) { if (write(1, "executing program\n", sizeof("executing program\n") - 1)) { } int i, call, thread; for (call = 0; call < 1; call++) { for (thread = 0; thread < (int)(sizeof(threads) / sizeof(threads[0])); thread++) { struct thread_t* th = &threads[thread]; if (!th->created) { th->created = 1; event_init(&th->ready); event_init(&th->done); event_set(&th->done); thread_start(thr, th); } if (!event_isset(&th->done)) continue; event_reset(&th->done); th->call = call; __atomic_fetch_add(&running, 1, __ATOMIC_RELAXED); event_set(&th->ready); event_timedwait(&th->done, 50 + (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 (;;) { sleep_ms(10); if (waitpid(-1, &status, WNOHANG | WAIT_FLAGS) == pid) break; if (current_time_ms() - start < 5000) continue; kill_and_wait(pid, &status); break; } remove_dir(cwdbuf); } } void execute_call(int call) { switch (call) { case 0: // syz_mount_image$ext4 arguments: [ // fs: ptr[in, buffer] { // buffer: {65 78 74 34 00} (length 0x5) // } // dir: ptr[in, buffer] { // buffer: {2e 2f 66 69 6c 65 30 00} (length 0x8) // } // flags: mount_flags = 0x2008002 (8 bytes) // opts: ptr[in, fs_options[ext4_options]] { // fs_options[ext4_options] { // elems: array[fs_opt_elem[ext4_options]] { // fs_opt_elem[ext4_options] { // elem: union ext4_options { // max_dir_size_kb: fs_opt["max_dir_size_kb", fmt[hex, int32]] // { // name: buffer: {6d 61 78 5f 64 69 72 5f 73 69 7a 65 5f 6b // 62} (length 0xf) eq: const = 0x3d (1 bytes) val: int32 = // 0x1000 (18 bytes) // } // } // comma: const = 0x2c (1 bytes) // } // fs_opt_elem[ext4_options] { // elem: union ext4_options { // nobh: buffer: {6e 6f 62 68} (length 0x4) // } // comma: const = 0x2c (1 bytes) // } // fs_opt_elem[ext4_options] { // elem: union ext4_options { // quota: buffer: {71 75 6f 74 61} (length 0x5) // } // comma: const = 0x2c (1 bytes) // } // } // common: array[fs_opt_elem[fs_options_common]] { // } // null: const = 0x0 (1 bytes) // } // } // chdir: int8 = 0x1 (1 bytes) // size: len = 0x560 (8 bytes) // img: ptr[in, buffer] { // buffer: (compressed buffer with length 0x560) // } // ] // returns fd_dir memcpy((void*)0x200000000080, "ext4\000", 5); memcpy((void*)0x200000000180, "./file0\000", 8); memcpy((void*)0x2000000000c0, "max_dir_size_kb", 15); *(uint8_t*)0x2000000000cf = 0x3d; sprintf((char*)0x2000000000d0, "0x%016llx", (long long)0x1000); *(uint8_t*)0x2000000000e2 = 0x2c; memcpy((void*)0x2000000000e3, "nobh", 4); *(uint8_t*)0x2000000000e7 = 0x2c; memcpy((void*)0x2000000000e8, "quota", 5); *(uint8_t*)0x2000000000ed = 0x2c; *(uint8_t*)0x2000000000ee = 0; memcpy( (void*)0x200000000440, "\x78\x9c\xec\xdd\xcf\x6f\x23\x57\x1d\x00\xf0\xef\x4c\x7e\x36\xbb\x6d" "\x76\xa1\x07\xa8\x80\x5d\xa0\xb0\xa0\xd5\xda\x1b\x6f\xbb\xaa\x7a\x69" "\xb9\x80\x50\x55\xa9\xa2\xe2\xc4\x61\x1b\x12\x6f\x14\xd6\x5e\x2f\xb1" "\x53\x9a\x10\x89\xf4\x6f\x00\x09\x24\x4e\xf0\x27\x70\x40\xe2\x80\xd4" "\x13\x07\x6e\x1c\x91\x38\x00\xa2\x1c\x90\x0a\x44\xa0\x0d\x12\x07\xa3" "\x19\x4f\x12\x37\x71\x58\xb3\x76\x6c\x36\xfe\x7c\xa4\xd9\xf9\xf1\x66" "\xe6\xfb\x9e\xbd\x33\xef\xf9\xd9\x99\x17\xc0\xc4\xba\x1a\x11\xbb\x11" "\x31\x1b\x11\x6f\x45\xc4\x62\xb1\x3d\x29\xa6\x78\xb5\x33\x65\xfb\x3d" "\xdc\xdb\x59\xd9\xdf\xdb\x59\x49\xa2\xdd\x7e\xf3\x6f\x49\x9e\x9e\x6d" "\x8b\xae\x63\x32\x17\x8a\x73\xce\x47\xc4\xd7\xbe\x12\xf1\xcd\xe4\x64" "\xdc\xe6\xd6\xf6\xbd\xe5\x5a\xad\xba\x51\xac\x97\x5b\xf5\x07\xe5\xe6" "\xd6\xf6\x8d\xf5\xfa\xf2\x5a\x75\xad\x7a\xbf\x52\xb9\xbd\x74\xfb\xe6" "\x4b\xb7\x5e\xac\x0c\xad\xac\x57\xea\x3f\xfb\xe0\xcb\xeb\xaf\x7d\xfd" "\x97\xbf\xf8\xe4\xfb\xbf\xd9\xfd\xe2\x77\xb3\x6c\x5d\x2c\xd2\xba\xcb" "\x31\x4c\x9d\xa2\xcf\x1c\xc6\xc9\x4c\x47\xc4\x6b\x67\x11\x6c\x0c\xa6" "\x8a\xf9\xec\x98\xf3\xc1\xe3\x49\x23\xe2\x23\x11\xf1\x99\xfc\xfa\x5f" "\x8c\xa9\xfc\x7f\x27\x00\x70\x9e\xb5\xdb\x8b\xd1\x5e\xec\x5e\x07\x00" "\xce\xbb\x34\xef\x03\x4b\xd2\x52\x44\xa4\x69\xd1\x08\x28\x75\xfa\xf0" "\x9e\x8d\x85\xb4\xd6\x68\xb6\xae\xdf\x6d\x6c\xde\x5f\xed\xf4\x95\x5d" "\x8a\x99\xf4\xee\x7a\xad\x7a\xf3\xf2\xdc\xef\xbe\x9d\xef\x3c\x93\x64" "\xeb\x4b\x79\x5a\x9e\x9e\xaf\x57\x8e\xad\xdf\x8a\x88\xcb\x11\xf1\x83" "\xb9\xa7\xf2\xf5\xd2\x4a\xa3\xb6\x3a\x9e\x26\x0f\x00\x4c\xbc\x0b\xdd" "\xf5\x7f\x44\xfc\x73\x2e\x4d\x4b\xa5\xbe\x0e\xed\xf1\xad\x1e\x00\xf0" "\xc4\x98\x1f\x77\x06\x00\x80\x91\x53\xff\x03\xc0\xe4\x51\xff\x03\xc0" "\xe4\xe9\xa3\xfe\x2f\xbe\xec\xdf\x3d\xf3\xbc\x00\x00\xa3\xe1\xf3\x3f" "\x00\x4c\x1e\xf5\x3f\x00\x4c\x1e\xf5\x3f\x00\x4c\x94\x37\x5e\x7f\x3d" "\x9b\xda\xfb\xc5\xf3\xaf\x57\xdf\xde\xda\xbc\xd7\x78\xfb\xc6\x6a\xb5" "\x79\xaf\x54\xdf\x5c\x29\xad\x34\x36\x1e\x94\xd6\x1a\x8d\xb5\xfc\x99" "\x3d\xf5\x47\x9d\xaf\xd6\x68\x3c\x58\x7a\x21\x36\xdf\x29\xb7\xaa\xcd" "\x56\xb9\xb9\xb5\x7d\xa7\xde\xd8\xbc\xdf\xba\x93\x3f\xd7\xfb\x4e\x75" "\x66\x24\xa5\x02\x00\xfe\x9b\xcb\x57\xde\xfb\x6d\x12\x11\xbb\x2f\x3f" "\x95\x4f\xd1\x35\x96\x83\xba\x1a\xce\xb7\x74\x88\x7b\x01\x4f\x96\xa9" "\x41\x0e\xd6\x40\x80\x27\x9a\xd1\xbe\x60\x72\xf5\x55\x85\xe7\x8d\x84" "\x5f\x9f\x79\x5e\x80\xf1\xe8\xf9\x30\xef\xf9\x9e\x8b\x1f\xf6\xa3\xff" "\x21\x88\xdf\x19\xc1\xff\x95\x6b\x1f\xef\xbf\xff\xdf\x18\xcf\x70\xbe" "\xe8\xd9\x87\xc9\xf5\x78\xfd\xff\xaf\x0c\x3d\x1f\xc0\xe8\x3d\x76\xff" "\xff\x1f\x86\x9b\x0f\x60\xf4\xda\xed\xe4\xf8\x98\xff\xb3\x87\x49\xdd" "\xde\x18\xe5\xa8\xc4\x00\xc0\x59\x1a\xe0\x27\x7c\xed\xef\x0d\xab\x11" "\x02\x8c\xd5\xa3\x06\xf3\x1e\xca\xf7\xff\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x70\xce\x5c\x8c\x88\x6f\x45\x92\x96\xf2\xb1\xc0\xd3\xec\xdf\xb4\x54" "\x8a\x78\x3a\x22\x2e\xc5\x4c\x72\x77\xbd\x56\xbd\x19\x11\xcf\xc4\x95" "\x88\x98\x99\xcb\xd6\x97\xc6\x9d\x69\x00\x60\x40\xe9\x5f\x92\x62\xfc" "\xaf\x6b\x8b\xcf\x5f\x3c\x9e\x3a\x9b\xfc\x6b\x2e\x9f\x47\xc4\x77\x7e" "\xfc\xe6\x0f\xdf\x59\x6e\xb5\x36\x96\xb2\xed\x7f\x3f\xdc\x3e\x77\x30" "\x7c\x58\xe5\xe8\xb8\x01\xc6\x15\x04\x00\xfa\xf7\xa7\x7e\x76\xca\xeb" "\xef\x4a\x31\xef\xfa\x20\xff\x70\x6f\x67\xe5\x60\x3a\xc3\x3c\x9e\xf0" "\xc1\x97\x0e\x07\x1f\x5d\xd9\xdf\xdb\xc9\xa7\x4e\xca\x74\xb4\xdb\xed" "\x76\xc4\x7c\xde\x96\x58\xf8\x47\x12\xd3\xc5\x31\xf3\x11\xf1\x5c\x44" "\x4c\x0d\x21\xfe\xee\xbb\x11\xf1\xb1\x5e\xe5\x4f\xf2\xbe\x91\x4b\xc5" "\xc8\xa7\xdd\xf1\xa3\x88\xfd\xf4\x48\xe3\xa7\x1f\x8a\x9f\xe6\x69\x9d" "\x79\xf6\xf2\x7d\x74\x08\x79\x81\x49\xf3\x5e\x76\xff\x79\xb5\xd7\xf5" "\x97\xc6\xd5\x7c\xde\xfb\xfa\x9f\xcf\xef\x50\x83\xcb\xef\x7f\xf3\x11" "\x07\xf7\xbe\xfd\xae\xf8\xd3\x45\xa4\xa9\x1e\xf1\xb3\x6b\xfe\x6a\xbf" "\x31\x5e\xf8\xd5\x57\x4f\x6c\x6c\x2f\x76\xd2\xde\x8d\x78\x6e\xba\x57" "\xfc\xe4\x30\x7e\x72\x4a\xfc\xe7\xfb\x8c\xff\xfb\x4f\x7c\xea\xfb\xaf" "\x9c\x92\xd6\xfe\x49\xc4\xb5\xe8\x1d\xbf\x3b\x56\xb9\x55\x7f\x50\x6e" "\x6e\x6d\xdf\x58\xaf\x2f\xaf\x55\xd7\xaa\xf7\x2b\x95\xdb\x4b\xb7\x6f" "\xbe\x74\xeb\xc5\x4a\x39\xef\xa3\x2e\x1f\xf4\x54\x9f\xf4\xd7\x97\xaf" "\x3f\x73\x5a\xde\xb2\xf2\x2f\x9c\x12\xbf\xf3\xce\x5f\x38\x56\xfe\xd9" "\xc3\x63\x3f\xd7\x67\xf9\x7f\xfa\xef\xb7\xbe\xf1\xe9\xa3\xd5\xb9\xe3" "\xf1\xbf\xf0\xd9\xde\xef\xff\xb3\xf9\xbc\xf7\xeb\x9f\xd5\x89\x9f\xef" "\x33\xfe\xf2\xc2\xcf\x4f\x1d\xbe\x3b\x8b\xbf\x7a\x4a\xf9\x1f\xf5\xfe" "\x5f\xef\x33\xfe\xfb\x7f\xde\x5e\xed\x73\x57\x00\x60\x04\x9a\x5b\xdb" "\xf7\x96\x6b\xb5\xea\xc6\x40\x0b\xd9\xa7\xd0\x61\x9c\xe7\xc4\x42\x96" "\xc5\xfe\x76\x3e\x68\x2e\x0e\x16\xf4\x8f\x91\x2f\x1c\xbd\x2c\x49\x24" "\x31\xec\x72\x65\x8d\xb1\x7e\x76\x9e\x39\xab\x57\xf5\xcc\x17\xa6\x0f" "\xdb\x8a\xc3\x38\xe1\x54\x67\x61\xa1\x38\xe5\x88\x8b\x93\x0e\xa9\x14" "\x83\x2d\xc4\xa5\x62\xe1\xe1\xa8\x82\x8e\xe7\x7e\x04\x8c\xce\xd1\x45" "\x3f\xee\x9c\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xa7\x19" "\xc5\xdf\x30\x8d\xbb\x8c\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\x9c\x5f\xff\x09\x00\x00\xff\xff\xb6\xb4\xbe\xc7", 1376); syz_mount_image(/*fs=*/0x200000000080, /*dir=*/0x200000000180, /*flags=MS_LAZYTIME|MS_SILENT|MS_NOSUID*/ 0x2008002, /*opts=*/0x2000000000c0, /*chdir=*/1, /*size=*/0x560, /*img=*/0x200000000440); break; } } int main(void) { syscall(__NR_mmap, /*addr=*/0x1ffffffff000ul, /*len=*/0x1000, /*prot=*/0ul, /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/(intptr_t)-1, /*offset=*/0ul); syscall(__NR_mmap, /*addr=*/0x200000000000ul, /*len=*/0x1000000, /*prot=PROT_WRITE|PROT_READ|PROT_EXEC*/ 7ul, /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/(intptr_t)-1, /*offset=*/0ul); syscall(__NR_mmap, /*addr=*/0x200001000000ul, /*len=*/0x1000, /*prot=*/0ul, /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/(intptr_t)-1, /*offset=*/0ul); const char* reason; (void)reason; for (procid = 0; procid < 5; procid++) { if (fork() == 0) { use_temporary_dir(); loop(); } } sleep(1000000); return 0; }