// https://syzkaller.appspot.com/bug?id=f86606dfb403cc9435c0ed5f17e1d80c110cddef // 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 #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) 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_RDWR); 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) { res = chdir(target); if (res == -1) { err = errno; } } 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_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")) { } } #define USLEEP_FORKED_CHILD (3 * 50 * 1000) static long handle_clone_ret(long ret) { if (ret != 0) { return ret; } usleep(USLEEP_FORKED_CHILD); syscall(__NR_exit, 0); while (1) { } } static long syz_clone(volatile long flags, volatile long stack, volatile long stack_len, volatile long ptid, volatile long ctid, volatile long tls) { long sp = (stack + stack_len) & ~15; long ret = (long)syscall(__NR_clone, flags & ~CLONE_VM, sp, ptid, ctid, tls); return handle_clone_ret(ret); } 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_one(void) { if (write(1, "executing program\n", sizeof("executing program\n") - 1)) { } // syz_mount_image$hfsplus arguments: [ // fs: ptr[in, buffer] { // buffer: {68 66 73 70 6c 75 73 00} (length 0x8) // } // dir: ptr[in, buffer] { // buffer: {2e 2f 66 69 6c 65 31 00} (length 0x8) // } // flags: mount_flags = 0x0 (8 bytes) // opts: ptr[in, fs_options[hfsplus_options]] { // fs_options[hfsplus_options] { // elems: array[fs_opt_elem[hfsplus_options]] { // } // common: array[fs_opt_elem[fs_options_common]] { // } // null: const = 0x0 (1 bytes) // } // } // chdir: int8 = 0x3 (1 bytes) // size: len = 0x608 (8 bytes) // img: ptr[in, buffer] { // buffer: (compressed buffer with length 0x608) // } // ] // returns fd_dir memcpy((void*)0x200000000600, "hfsplus\000", 8); memcpy((void*)0x200000000040, "./file1\000", 8); *(uint8_t*)0x200000000340 = 0; memcpy( (void*)0x200000000c40, "\x78\x9c\xec\xdd\xcf\x6b\x1c\xe7\x1d\x07\xe0\xcf\xac\x56\xb2\xd6\x05\x47" "\x49\xec\x24\x2d\x2d\x15\xf6\xa1\x25\xa6\xb6\x56\x9b\x38\x3a\x14\xea\x96" "\x52\x74\x08\x25\xd0\x4b\x2e\x39\x08\x5b\x8e\x85\xd7\x4a\x90\x94\xa2\x84" "\x52\xe4\xfe\xbc\xf6\x3f\x48\x4a\x91\xcf\x3d\xf5\x50\x7a\x30\xa4\xe7\x5e" "\x7b\x14\xf4\x90\x43\xa1\x77\xdd\x54\x66\x76\x56\x5a\x5b\xb2\x22\xc5\x8a" "\x76\x95\x3c\x0f\xbc\xfb\xbe\x33\xef\xbc\xef\xbc\xef\x97\xd9\x57\x3b\xb3" "\x88\x0d\xf0\xb5\x35\xff\x76\xc6\x1f\xa5\xc8\xfc\xd5\x37\xd7\xcb\xed\xad" "\xcd\x4e\x77\x6b\xb3\x73\xbf\x5f\x4e\x72\x2e\x49\x23\x69\xf6\xb2\x14\xcb" "\x49\xf1\x69\x72\x33\xbd\x94\x6f\x96\x3b\xeb\xee\x8a\xa7\x9d\xe7\x9d\x8f" "\xdf\x98\xfb\xac\xfd\xf0\x41\x52\x34\x7b\x7d\x35\xfb\xc7\x37\x0e\x6b\x77" "\x34\x1b\x75\xca\x74\x92\xb1\x3a\x3f\xa9\xfe\x6e\x3d\xbd\xbf\x9d\xa3\x75" "\x57\xec\xce\xb0\x0c\xd8\x95\x7e\xe0\x60\xd8\x76\xf6\xd9\x38\x4e\xf3\x67" "\x7c\xdf\x02\xa3\x6c\x2a\x39\x9f\x64\xb2\xfe\x1c\x90\x7a\x75\x68\x0c\x79" "\x58\xcf\xec\x58\xab\x1c\x00\x00\x00\x9c\x51\xcf\x6d\x67\x3b\xeb\xb9\x30" "\xec\x71\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xc0\x59\x52\x24\x63\xbd\xac" "\x4a\x8d\x7e\x79\x3a\x45\xff\xf7\xff\x27\xea\x7d\xa9\xcb\x67\xda\xa3\x61" "\x0f\x00\x00\x00\x00\x00\x00\x00\x00\x4e\xc0\x77\xb7\xb3\x9d\xf5\x5c\xe8" "\x6f\xef\x14\xd5\x77\xfe\x97\xab\x8d\x8b\xd5\xeb\x37\xf2\x41\x56\xb3\x98" "\xe4\x5a\xd6\xb3\x90\xb5\xac\x65\x25\xed\x24\x53\x03\x1d\x4d\xac\x2f\xac" "\xad\xad\xb4\x0f\x6c\xb9\x32\xd0\xb2\x48\x36\x1e\x1f\x42\xaf\xe5\xec\x29" "\x4c\x16\x00\x00\x00\x00\x00\x00\x00\xbe\xba\x7e\x93\xf9\xbd\xef\xff\x01" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x60\x14\x14\xc9\x58\x2f\xab\xd2" "\xc5\x7e\x79\x2a\x8d\x66\x92\xc9\x24\x13\xe5\x71\x1b\xc9\x3f\xfa\xe5\xb3" "\xec\xd1\xb0\x07\x00\x00\x00\x00\xa7\xe0\xb9\xed\x6c\x67\x3d\x17\xfa\xdb" "\x3b\x45\x75\xcf\xff\x52\x75\xdf\x3f\x99\x0f\xb2\x9c\xb5\x2c\x65\x2d\xdd" "\x2c\xe6\x76\xf5\x2c\xa0\x77\xd7\xdf\xd8\xda\xec\x74\xb7\x36\x3b\xf7\xcb" "\xb4\xbf\xdf\x1f\xff\xef\x58\xc3\xa8\x7a\x4c\xef\xd9\xc3\xc1\x67\x9e\xa9" "\x8e\xb8\xb4\xdb\x62\x3e\x3f\xcb\x2f\x72\x35\xd3\x79\x2b\x2b\x59\xca\x2f" "\xb3\x90\xb5\x2c\x66\x3a\x3f\xad\x4a\x0b\x29\x32\x55\x3f\xbd\x98\xea\x8f" "\xf3\xe0\xf1\xde\x7c\x6c\xeb\xad\xcf\x1b\xeb\x2b\xd5\x48\x5a\xb9\x93\xa5" "\x6a\x6c\xd7\x72\x2b\xef\xa5\x9b\xdb\x69\x54\x73\xa8\x8e\x39\xfc\x8c\x0f" "\xca\xe8\x14\x3f\xaa\x1d\x31\x46\xb7\xeb\xbc\x9c\xd1\x9f\xea\x7c\x34\x4c" "\x55\x11\x19\xdf\x8d\xc8\x4c\x1d\xfb\x32\x1a\xcf\x1f\x1e\x89\x63\x5e\x27" "\x4f\x9e\xa9\x9d\xc6\xee\x33\xa8\x8b\xff\x3e\xf9\x98\x9f\xaf\xf3\x32\xd6" "\x7f\x18\xe9\x98\xcf\x0e\x5c\x7d\x2f\x1d\x1e\xf3\xe4\xf2\x7f\xbe\xf3\xb7" "\xbb\xdd\xe5\x7b\x77\xef\xac\x5e\x1d\x9d\x29\x7d\x41\x4f\x46\xa2\x33\x10" "\x89\x97\xbf\x56\x91\x98\xa8\xa3\xd1\x5b\x45\x8f\xb7\x5a\x5e\xae\xda\x5e" "\xc8\x52\x7e\x9e\xf7\x72\x3b\x8b\x79\x3d\x73\x79\x3d\xb3\x79\x2d\xaf\x65" "\x26\x73\xb9\x31\x10\xd7\x4b\x47\x58\xdf\x1a\xc7\x7b\xaf\x5d\xf9\x7e\x5d" "\x68\x25\xf9\x63\x9d\x8f\x86\x32\xae\xcf\x0f\xc4\x75\x70\xa5\x9b\xaa\xea" "\x06\xf7\xf4\xa2\x54\x5e\x4c\x2f\x9c\xfc\x5f\x81\xe6\xb7\xea\x42\x79\x8e" "\xdf\xd6\xf9\x68\x78\x32\x12\xed\x81\xeb\xe5\xc5\xfd\x91\x68\x0e\x34\xfd" "\xf3\x4e\xf9\xba\xda\x5d\xbe\xb7\x72\x77\xe1\xfd\x23\x9e\xef\x7b\x75\x5e" "\x46\xfa\xf7\x23\xb5\x36\x97\xd7\xcb\x0b\xe9\x4f\xf1\xf1\xab\xa3\xac\x7b" "\xf1\xc0\xba\x76\x55\x77\x71\xb7\xae\xb1\xaf\xee\xd2\x6e\xdd\xe7\xbd\x53" "\x27\xea\xcf\x70\xfb\x7b\x9a\xad\xea\x5e\x3e\xb0\xae\x53\xd5\xbd\x32\x50" "\x77\xd0\xa7\x1c\x00\x46\xd4\xde\x77\xda\xe7\x5f\x3d\x3f\xd1\xfa\x6f\xeb" "\x5f\xad\x4f\x5a\xbf\x6b\xdd\x6d\xbd\x39\xf9\x93\x73\x73\xe7\xbe\x3d\x91" "\xf1\x7f\x36\xff\x3e\xf6\xd7\xc6\xc3\xc6\x0f\x8b\x57\xf3\x49\x7e\xbd\x77" "\xff\x0f\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x7c\x71\xab\x1f\x7e\x74\x6f\xa1\xdb\xff\x19" "\x80\x6e\x77\x71\xa5\xb7\xe7\x2b\x56\xf8\x4b\x46\x62\x18\x0a\x23\x55\x68" "\x25\xa9\x0a\x93\xf5\xf5\xbf\xff\x98\xfe\xaf\x55\x0d\x7b\xa8\x47\x2d\x8c" "\xe7\xa4\x3a\x1c\xd2\x82\x04\x9c\x9a\xeb\x6b\xf7\xdf\xbf\xbe\xfa\xe1\x47" "\x3f\x58\xba\xbf\xf0\xee\xe2\xbb\x8b\xcb\x9d\x4e\xfb\xc6\xec\xdc\x8d\xb9" "\xd9\x1b\xd7\xef\x2c\x75\x17\x67\x7a\xaf\xc3\x1e\x26\xf0\x25\xd8\xfb\xa3" "\x3f\xec\x91\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x47\x75\x1a\xff\x96" "\x30\xec\x39\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\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x67\xdb\xfc\xdb\x19\x7f\x94\x22\xed\x99\x6b" "\x33\xe5\xf6\xd6\x66\xa7\x5b\xa6\x7e\x79\xef\xc8\x66\x92\x46\x92\xe2\x57" "\x49\xf1\x69\x72\x33\xbd\x94\xa9\x81\xee\x8a\xa7\x9d\xe7\x9d\x8f\xdf\x98" "\xfb\xac\xfd\xf0\xc1\x5e\x5f\xcd\xfe\xf1\x8d\xc3\xda\x1d\xcd\x46\x9d\x32" "\x9d\x64\xac\xce\x4f\xaa\xbf\x5b\xcf\xdc\x5f\xb1\x3b\xc3\x32\x60\x57\xfa" "\x81\x83\x61\xfb\x7f\x00\x00\x00\xff\xff\x9c\xf1\x02\x75", 1544); syz_mount_image(/*fs=*/0x200000000600, /*dir=*/0x200000000040, /*flags=*/0, /*opts=*/0x200000000340, /*chdir=*/3, /*size=*/0x608, /*img=*/0x200000000c40); // syz_clone arguments: [ // flags: clone_flags = 0x0 (8 bytes) // stack: nil // stack_len: bytesize = 0x0 (8 bytes) // parentid: nil // childtid: nil // tls: nil // ] // returns pid syz_clone(/*flags=*/0, /*stack=*/0, /*stack_len=*/0, /*parentid=*/0, /*childtid=*/0, /*tls=*/0); } int main(void) { syscall(__NR_mmap, /*addr=*/0x1ffffffff000ul, /*len=*/0x1000ul, /*prot=*/0ul, /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/(intptr_t)-1, /*offset=*/0ul); syscall(__NR_mmap, /*addr=*/0x200000000000ul, /*len=*/0x1000000ul, /*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=*/0x1000ul, /*prot=*/0ul, /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/(intptr_t)-1, /*offset=*/0ul); const char* reason; (void)reason; use_temporary_dir(); loop(); return 0; }