// https://syzkaller.appspot.com/bug?id=2dc8666cb32cd80f3f880a1552dda1aaeedb6387 // 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 #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 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) { errno = EMSGSIZE; return -1; } 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, 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) { if (strstr(opts, "errors=panic") || strstr(opts, "errors=remount-ro") == 0) 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")) { } } 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); } } void execute_one(void) { memcpy((void*)0x20000040, "ext4\000", 5); memcpy((void*)0x20000500, "./file0\000", 8); memcpy((void*)0x20000100, "nojournal_checksum", 18); *(uint8_t*)0x20000112 = 0x2c; memcpy((void*)0x20000113, "nodelalloc", 10); *(uint8_t*)0x2000011d = 0x2c; memcpy((void*)0x2000011e, "grpjquota=", 10); *(uint8_t*)0x20000128 = 0x2c; memcpy((void*)0x20000129, "barrier", 7); *(uint8_t*)0x20000130 = 0x3d; sprintf((char*)0x20000131, "0x%016llx", (long long)0x80000000); *(uint8_t*)0x20000143 = 0x2c; memcpy((void*)0x20000144, "data_err=abort", 14); *(uint8_t*)0x20000152 = 0x2c; memcpy((void*)0x20000153, "abort", 5); *(uint8_t*)0x20000158 = 0x2c; memcpy((void*)0x20000159, "discard", 7); *(uint8_t*)0x20000160 = 0x2c; memcpy((void*)0x20000161, "jqfmt=vfsv0", 11); *(uint8_t*)0x2000016c = 0x2c; memcpy((void*)0x2000016d, "minixdf", 7); *(uint8_t*)0x20000174 = 0x2c; *(uint8_t*)0x20000175 = 0; memcpy( (void*)0x20000540, "\x78\x9c\xec\xdd\xcf\x6f\x1b\x55\x1e\x00\xf0\xef\x4c\xe2\x6e\x7f\xa4\x9b" "\x74\x77\x0f\xdd\x4a\xdb\xad\xb6\x5d\xa5\xd5\x6e\xed\xa4\xd9\xb6\xd1\x1e" "\xba\x5d\x69\xb5\x9c\x2a\x01\xe5\x5e\x42\xe2\x44\x51\x9c\x38\x8a\x9d\xb6" "\x89\x2a\x94\x8a\x3f\x00\x09\x21\x40\xe2\xc4\x89\x0b\x12\x7f\x00\x12\xea" "\x9f\x80\x90\x2a\xc1\x1d\x01\x02\x21\x68\xe1\xc0\x01\x30\xb2\x3d\x2e\x6d" "\xb0\x9b\x54\x38\xb1\x14\x7f\x3e\xd2\xeb\xbc\x37\x63\xfb\xfb\xbe\xb5\x3c" "\x9e\x37\xf3\xe2\x09\xa0\x6f\x9d\x88\x88\xcb\x11\x31\x10\x11\x67\x22\x62" "\x38\x5b\x9f\x66\x25\x36\x9a\xa5\xfe\xb8\xfb\xf7\x6e\x4d\xd7\x4b\x12\xb5" "\xda\xd5\xaf\x93\x48\xb2\x75\xad\xd7\x4a\xb2\xe5\xa1\xec\x69\xfb\x23\xe2" "\xd9\xa7\x22\x5e\x48\x7e\x1d\xb7\xb2\xb6\xbe\x30\x55\x2a\x15\x57\xb2\x76" "\xa1\xba\xb8\x5c\xa8\xac\xad\x9f\x9d\x5f\x9c\x9a\x2b\xce\x15\x97\x26\x26" "\xc6\x2f\x4c\x5e\x9c\x3c\x3f\x39\xd6\x95\x3c\x47\x22\xe2\xd2\xff\x3e\x7f" "\xed\xe5\xb7\xff\x7f\xe9\xfd\x7f\xde\xf8\xe4\xda\x97\xa7\x5f\xac\x77\x6b" "\x28\xdb\xfe\x70\x1e\xdd\xd4\x4c\x3d\xd7\xf8\xbf\x68\x19\x8c\x88\x95\x9d" "\x08\xd6\x03\x03\x59\x3e\xb9\x5e\x77\x04\x00\x80\x6d\xa9\x1f\xe3\xff\x21" "\x22\xfe\xd6\x38\xfe\x1f\x8e\x81\xc6\xd1\x1c\x00\x00\x00\xb0\x97\xd4\xfe" "\x33\x14\x3f\x24\x11\x35\x00\x00\x00\x60\xcf\x4a\x1b\x73\x60\x93\x34\x9f" "\xcd\x05\x18\x8a\x34\xcd\xe7\x9b\x73\x78\xff\x14\x07\xd3\x52\xb9\x52\xfd" "\xc7\x6c\x79\x75\x69\xa6\x39\x57\x76\x24\x72\xe9\xec\x7c\xa9\x38\x96\xcd" "\x15\x1e\x89\x5c\x52\x6f\x8f\x67\x73\x6c\x5b\xed\x73\x9b\xda\x13\x11\x71" "\x24\x22\x5e\x1d\x3e\xd0\x68\xe7\xa7\xcb\xa5\x99\x5e\x9f\xfc\x00\x00\x00" "\x80\x3e\x71\x68\xd3\xf8\xff\xbb\xe1\xe6\xf8\x1f\x00\x00\x00\xd8\x63\x46" "\x7a\xdd\x01\x00\x00\x00\x60\xc7\x19\xff\x03\x00\x00\xc0\xde\x67\xfc\x0f" "\x00\x00\x00\x7b\xda\xd3\x57\xae\xd4\x4b\xad\x75\xff\xeb\x99\xeb\x6b\xab" "\x0b\xe5\xeb\x67\x67\x8a\x95\x85\xfc\xe2\xea\x74\x7e\xba\xbc\xb2\x9c\x9f" "\x2b\x97\xe7\x1a\xbf\xd9\xb7\xb8\xd5\xeb\x95\xca\xe5\xe5\x7f\xc5\xd2\xea" "\xcd\x42\xb5\x58\xa9\x16\x2a\x6b\xeb\xd7\x16\xcb\xab\x4b\xd5\x6b\xf3\x8f" "\xdc\x02\x1b\x00\x00\x00\xd8\x45\x47\xfe\x7a\xe7\xe3\x24\x22\x36\xfe\x7d" "\xa0\x51\xea\xf6\x65\xdb\x72\x3d\xed\x19\xb0\xd3\xd2\x27\x79\xf0\x67\x3b" "\xd7\x0f\x60\xf7\x0d\xf4\xba\x03\x40\xcf\x0c\xf6\xba\x03\x40\xcf\x18\xe3" "\x03\xc9\x16\xdb\x3b\x4e\xde\xf9\xa0\xfb\x7d\x01\x00\x00\x76\xc6\xe8\x9f" "\x5d\xff\x07\x80\x7e\xe3\xfa\x3f\xf4\x2f\xd7\xff\xa1\x7f\xe5\x1c\x01\x40" "\xdf\xdb\xf9\xeb\xff\xb5\xda\x13\x75\x08\x00\x00\xe8\xba\xa1\x46\x49\xd2" "\x7c\xf6\xb7\xc0\x43\x91\xa6\xf9\x7c\xc4\xe1\xc6\x6d\x01\x72\xc9\xec\x7c" "\xa9\x38\x16\x11\xbf\x8f\x88\x8f\x86\x73\xbf\xab\xb7\xc7\x1b\xcf\x4c\xb6" "\x1c\x33\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x4d\xb5\x5a\x12\x35\x00\x00\x00\x60\x4f\x8b\x48\xbf\x48" "\xb2\xfb\x7f\x8d\x0e\x9f\x1a\xda\x7c\x7e\x60\x5f\xf2\xfd\x70\x63\x19\x11" "\x37\xde\xbc\xfa\xfa\xcd\xa9\x6a\x75\x65\xbc\xbe\xfe\x9b\x07\xeb\xab\x6f" "\x64\xeb\xcf\xf5\xe2\x0c\x06\x00\x00\x00\xb0\x59\x6b\x9c\xde\x1a\xc7\x03" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x40\x37\xdd\xbf\x77\x6b\xba\x55\x76\x33\xee\x57\xff\x8d\x88\x91\x76\xf1" "\x07\x63\x7f\x63\xb9\x3f\x72\x11\x71\xf0\xdb\x24\x06\x1f\x7a\x5e\x12\x11" "\x03\x5d\x88\xbf\x71\x3b\x22\x8e\xb6\x8b\x9f\xd4\xbb\x15\x23\x59\x2f\x36" "\xc7\x4f\x23\xe2\x40\x0f\xe3\xd7\xf3\x3f\xd4\x85\xf8\xd0\xcf\xee\xd4\xf7" "\x3f\x97\xdb\x7d\xfe\xd2\x38\xd1\x58\xb6\xff\xfc\x0d\x66\xe5\xb7\xea\xbc" "\xff\x4b\x1f\xec\xff\x06\x3a\x7c\xfe\x0f\x6f\x33\xc6\xb1\xbb\xef\x16\x3a" "\xc6\xbf\x1d\x71\x6c\xb0\xfd\xfe\xa7\x15\x3f\xe9\x10\xff\xe4\x36\xe3\x3f" "\xff\xdc\xfa\x7a\xa7\x6d\xb5\xb7\x22\x46\xdb\x7e\xff\x24\x8f\xc4\x2a\x54" "\x17\x97\x0b\x95\xb5\xf5\xb3\xf3\x8b\x53\x73\xc5\xb9\xe2\xd2\xc4\xc4\xf8" "\x85\xc9\x8b\x93\xe7\x27\xc7\x0a\xb3\xf3\xa5\x62\xf6\x6f\xdb\x18\xaf\xfc" "\xe5\xbd\x9f\x1e\x97\xff\xc1\x0e\xf1\x47\xb6\xc8\xff\xd4\x36\xf3\xff\xf1" "\xee\xcd\x7b\x7f\x6c\x56\x73\xed\xe2\x9f\x3e\xd9\xfe\xfd\x3f\xda\x21\x7e" "\x9a\x7d\xf7\xfd\x3d\xab\xd7\xb7\x8f\xb6\xea\x1b\xcd\xfa\xc3\x8e\xbf\xf3" "\xe1\xf1\xc7\xe5\x3f\xd3\x21\xff\xad\xde\xff\xd3\xdb\xcc\xff\xcc\x33\x2f" "\x7d\xba\xcd\x87\x02\x00\xbb\xa0\xb2\xb6\xbe\x30\x55\x2a\x15\x57\x54\x54" "\x54\x54\x1e\x54\x7a\xbd\x67\x02\x00\x00\xba\xed\x97\x83\xfe\x5e\xf7\x04" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xfa\xd7\x6e" "\xfc\x9c\xd8\xe6\x98\x1b\xbd\x49\x15\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xe0\xb1\x7e\x0e\x00" "\x00\xff\xff\x81\x83\xd5\x26", 1195); syz_mount_image(0x20000040, 0x20000500, 0x47, 0x20000100, 3, 0x4ab, 0x20000540); } int main(void) { syscall(__NR_mmap, 0x1ffff000ul, 0x1000ul, 0ul, 0x32ul, -1, 0ul); syscall(__NR_mmap, 0x20000000ul, 0x1000000ul, 7ul, 0x32ul, -1, 0ul); syscall(__NR_mmap, 0x21000000ul, 0x1000ul, 0ul, 0x32ul, -1, 0ul); use_temporary_dir(); loop(); return 0; }