// https://syzkaller.appspot.com/bug?id=86ed08f9bf01d26ad615ecae652c21dfb0d9b73d // 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 279 #endif #ifndef __NR_mmap #define __NR_mmap 222 #endif #ifndef __NR_openat #define __NR_openat 56 #endif #ifndef __NR_symlinkat #define __NR_symlinkat 36 #endif #ifndef __NR_unlinkat #define __NR_unlinkat 35 #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"); } 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; retry: const int umount_flags = MNT_FORCE | UMOUNT_NOFOLLOW; 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")) { } } 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[7] = {0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff}; void execute_one(void) { intptr_t res = 0; if (write(1, "executing program\n", sizeof("executing program\n") - 1)) { } memcpy((void*)0x20000100, "hfsplus\000", 8); memcpy((void*)0x200004c0, "\023\023w\305\3745\324\024T\325\324\035)\255\032`)" "Y\201F\346\276\026nA\255\r\275@T\003<\2373\273\332\202$" "\242\363\327r\347cnH\263<\277p\203r\350\361\271\223>" "\305\022wC\276\"\006 \236\360-\371\313\362\366\350\200\3238/\000", 78); memcpy((void*)0x20000000, "nls", 3); *(uint8_t*)0x20000003 = 0x3d; memcpy((void*)0x20000004, "cp949", 5); *(uint8_t*)0x20000009 = 0x2c; memcpy((void*)0x2000000a, "umask", 5); *(uint8_t*)0x2000000f = 0x3d; sprintf((char*)0x20000010, "%023llo", (long long)8); *(uint8_t*)0x20000027 = 0x2c; memcpy((void*)0x20000028, "decompose", 9); *(uint8_t*)0x20000031 = 0x2c; *(uint8_t*)0x20000032 = 0; memcpy( (void*)0x20000c00, "\x78\x9c\xec\xdd\x4d\x6c\x1c\x67\x19\x07\xf0\xff\xac\x37\x6b\x3b\xa0\xd4" "\x6d\x93\xb6\x20\xa4\x46\x8d\x88\xa0\x11\x89\x9d\xa5\x24\x08\x10\x01\x21" "\x94\x43\x85\x22\x71\xe9\x85\x83\x95\x38\x8d\x95\x4d\x5a\x39\x2e\x72\x2b" 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"\x6b\xef\x9d\x7d\xed\x41\x26\x66\xf2\xec\xee\x33\xb1\xbe\x4d\x26\x3e\xdc" "\xba\x39\x75\xbf\x36\x33\x7b\x3c\xa1\x47\xa4\x55\x67\xa3\x17\xe3\xe6\xdd" "\x32\xb9\x38\x7c\xb7\xec\x76\x93\x91\xbb\xe5\x0b\x55\xdf\x23\x59\xce\x8f" "\xf2\x5a\xae\x64\x29\xe7\x32\x9f\x85\x9c\xcf\x7c\xbe\x99\xb3\x69\x6f\x99" "\x61\xc7\x76\xce\x6b\x75\xad\x35\xf6\x76\xad\x9d\xf8\x4a\x5d\x98\x4d\xf2" "\xdb\x7a\x3d\x19\xca\xbc\x3e\x39\x94\xd7\xe1\x3b\xdd\x5c\x55\x37\xbc\x67" "\x33\x4b\x4f\xed\x22\x4b\x7b\xbc\x23\x35\xbf\x58\x17\xca\x63\xfc\x72\xe8" "\x19\x67\xfc\xee\xcd\xc4\xc2\x50\x26\x9e\xde\x39\x13\xbf\x2f\x67\x64\x6e" "\x75\x6e\x5e\x5f\xb9\xb6\xf8\xfa\x2e\x8f\x77\xb2\x5e\x97\x97\xed\xaf\xb7" "\x3e\x1f\xfe\x61\x3f\xce\xe7\xc1\x95\xf3\xe5\xa9\xf2\x8f\x55\x6d\x6d\x9d" "\x1d\x65\xdd\xd3\xf7\xad\x5b\xa8\xea\x8e\x0e\xea\x1a\x23\x75\xc7\x06\x75" "\x9f\x76\xa5\xb6\xea\xd7\x70\xa3\x23\xf5\xea\x9e\xbd\x6f\x5d\xbb\xaa\x7b" "\x6e\xa8\x6e\xcb\xab\x9c\xbc\x96\xce\xe0\x55\x08\x00\x93\xa2\x3b\xba\xeb" "\xf0\x8b\x87\x5b\xb3\x77\x67\xff\x31\xfb\xfe\xec\xaf\x66\xaf\xcd\xbe\x3c" "\xf3\xfd\xe9\xf3\xd3\x5f\x6a\xe5\xd0\xdf\x9b\x7f\x99\xfa\x53\xe3\x8f\x8d" "\x6f\x17\x2f\xe6\xfd\xfc\x3c\x47\xc6\x11\x30\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xfc\xbf" "\xb9\xf5\xe6\x5b\xd7\x17\x3b\x9d\xa5\x95\x09\x2c\xa4\xb1\xb7\x5e\xe5\xf9" "\x8c\x3b\xe6\x89\x2d\x4c\x27\xd9\x6b\xaf\xa2\xb9\xbf\x61\x7c\x98\xe4\x81" "\xbb\xf7\x7f\x2b\xb0\xbf\xe7\xcb\x9d\xa5\x7c\x7e\x87\x5e\xcd\xa1\x19\xbe" "\xd9\x6b\x22\xfe\x16\x0f\x5f\xf8\xd6\x4f\xea\x64\xec\xef\xc8\xb3\xf5\x80" "\x93\xf3\xe3\x62\xc0\xa3\x73\x66\xf5\xc6\xeb\x67\x6e\xbd\xf9\xd6\xd7\x96" "\x6f\x2c\xbe\xba\xf4\xea\xd2\xcd\xb3\xe7\xcf\x9d\x3f\xd7\xfe\xc6\xc2\xd7" "\xcf\x5c\x5d\xee\x2c\xcd\xf7\x1e\xc7\x1d\x25\xf0\x28\x6c\x3e\xfb\x8f\x3b" "\x12\x00\x00\x00\x00\x00\x00\x00\x00\x00\x60\xb7\x1e\xc7\x7f\x2c\x8c\xfb" "\x1c\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\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x80\x83\xed\xe2\x2b\x39\xb4\x9e\x22\x0b\xf3\xa7\xe7\xcb" "\xed\x3b\xb7\xdb\x9d\x72\xe9\x97\x37\x5b\x36\x93\x34\x92\x14\x3f\x4b\x8a" "\x4f\x92\x0b\xe9\x2d\x99\x1b\x1a\xae\xd8\xee\x38\x2f\xdd\xfd\xe8\xbd\x93" "\xef\x7e\xd0\xde\x1c\xab\xd9\x6f\xdf\xd8\xa9\xdf\xee\xac\xd7\x4b\x8e\x27" "\x99\xaa\xd7\xf7\x36\x18\x35\xbd\xab\xf1\x2e\x0f\x8f\xd7\x78\x90\xf0\x8a" "\xc1\x19\x96\x09\x3b\xd1\x4f\x1c\x8c\xdb\xff\x02\x00\x00\xff\xff\x6f\xfa" "\x03\x7c", 1676); syz_mount_image(/*fs=*/0x20000100, /*dir=*/0x200004c0, /*flags=*/0, /*opts=*/0x20000000, /*chdir=*/1, /*size=*/0x68c, /*img=*/0x20000c00); memcpy((void*)0x20000040, ".\000", 2); res = syscall(__NR_openat, /*fd=*/0xffffff9c, /*file=*/0x20000040ul, /*flags=*/0ul, /*mode=*/0ul); if (res != -1) r[0] = res; memcpy((void*)0x20001a00, "./file0\000", 8); memcpy((void*)0x20000200, "./" "file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\000", 251); syscall(__NR_symlinkat, /*old=*/0x20001a00ul, /*newfd=*/r[0], /*new=*/0x20000200ul); memcpy((void*)0x20000040, ".\000", 2); res = syscall(__NR_openat, /*fd=*/0xffffff9c, /*file=*/0x20000040ul, /*flags=*/0ul, /*mode=*/0ul); if (res != -1) r[1] = res; memcpy((void*)0x20001a00, "./file0\000", 8); memcpy((void*)0x20000200, "./" "file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\000", 251); syscall(__NR_symlinkat, /*old=*/0x20001a00ul, /*newfd=*/r[1], /*new=*/0x20000200ul); memcpy((void*)0x20000040, ".\000", 2); res = syscall(__NR_openat, /*fd=*/0xffffff9c, /*file=*/0x20000040ul, /*flags=*/0ul, /*mode=*/0ul); if (res != -1) r[2] = res; memcpy((void*)0x20001a00, "./file0\000", 8); memcpy((void*)0x20000200, "./" "file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\000", 251); syscall(__NR_symlinkat, /*old=*/0x20001a00ul, /*newfd=*/r[2], /*new=*/0x20000200ul); memcpy((void*)0x20000040, ".\000", 2); res = syscall(__NR_openat, /*fd=*/r[1], /*file=*/0x20000040ul, /*flags=*/0ul, /*mode=*/0ul); if (res != -1) r[3] = res; memcpy((void*)0x20001a00, "./file0\000", 8); memcpy((void*)0x20000200, "./" "file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\000", 251); syscall(__NR_symlinkat, /*old=*/0x20001a00ul, /*newfd=*/r[3], /*new=*/0x20000200ul); memcpy((void*)0x20000040, ".\000", 2); res = syscall(__NR_openat, /*fd=*/0xffffff9c, /*file=*/0x20000040ul, /*flags=*/0ul, /*mode=*/0ul); if (res != -1) r[4] = res; memcpy((void*)0x20001a00, "./file0\000", 8); memcpy((void*)0x20000200, "./" "file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\000", 251); syscall(__NR_symlinkat, /*old=*/0x20001a00ul, /*newfd=*/r[4], /*new=*/0x20000200ul); memcpy((void*)0x20000040, ".\000", 2); res = syscall(__NR_openat, /*fd=*/0xffffff9c, /*file=*/0x20000040ul, /*flags=*/0ul, /*mode=*/0ul); if (res != -1) r[5] = res; memcpy((void*)0x20001a00, "./file0\000", 8); memcpy((void*)0x20000200, "./file0\000", 8); syscall(__NR_symlinkat, /*old=*/0x20001a00ul, /*newfd=*/r[5], /*new=*/0x20000200ul); memcpy((void*)0x20000080, "hfsplus\000", 8); memcpy((void*)0x20000140, "./file1\000", 8); memcpy( (void*)0x200003c0, "\x78\x9c\xec\xdd\xcd\x6f\x1c\x67\x1d\x07\xf0\xef\x6c\x36\xb6\x37\x94\xd4" "\x4d\x93\x36\x45\x95\x62\x35\x12\x20\x2c\x12\xbf\xc8\x05\x73\x21\x20\x84" "\x7c\xa8\x50\x55\x0e\x9c\xad\xc4\x69\xac\x6c\xd2\x62\xbb\xc8\xad\x10\x35" "\xef\xd7\x1e\xf2\x07\x94\x83\x6f\x9c\x90\xb8\x47\x2a\x17\x2e\x70\xeb\xd5" "\xc7\x4a\x08\x2e\xbd\x60\x4e\x8b\x66\x76\xd6\xde\xfa\xdd\x25\xf1\xda\xe5" "\xf3\x89\x66\x9f\x67\xe6\x99\x79\x9e\xdf\xf3\xdb\x99\x9d\xdd\xb5\xa2\x0d" "\xf0\x7f\x6b\x6e\x3c\xcd\xc7\x29\x32\x37\xfe\xda\x6a\xb9\xbe\xb1\x3e\xdd" "\xde\x58\x9f\x7e\xd0\xab\x27\x19\x4e\xd2\x48\x9a\xdd\x22\xc5\xbf\x3b\x9d" "\xce\x47\xc9\xad\x74\x97\xbc\x54\x6e\xac\xbb\x2b\xf6\x1b\xe7\xd1\xe2\xec" "\x1b\x1f\x7f\xba\xf1\x49\x77\xad\x59\x2f\xd5\xfe\x8d\x83\x8e\x3b\x9a\xb5" "\x7a\xc9\x58\x92\x73\x75\xf9\xa4\xfa\xbb\x7d\x58\x7f\x23\x87\x75\x57\x6c" "\xcd\xb0\x4c\xd8\xf5\x5e\xe2\x60\xd0\xce\x27\xe9\x54\xfe\xf9\xa8\xbb\xe5" "\xa7\x7f\x7d\x66\xab\xa5\x4f\x6b\xaf\xa3\x0f\x3d\xf3\x81\x33\xa0\xe8\xde" "\x37\x77\x19\x4d\x2e\xd4\x17\x7a\xf9\x3e\xa0\x7b\x57\xec\xde\xb3\xcf\xb4" "\xb5\x41\x07\x00\x00\x00\x00\x27\xe0\xd9\xcd\x6c\x66\x35\x17\x07\x1d\x07" "\x00\x00\x00\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\x25\xf5\xef\xff\x17\xf5\xd2\xe8" "\xd5\xc7\x52\xf4\x7e\xff\x7f\xa8\xde\x96\xba\x7e\xba\x5c\x3b\xde\xee\x8f" "\x9f\x56\x1c\x00\x00\x00\x00\x00\x00\x00\x70\x82\xae\x6d\x66\x33\xab\xb9" 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"\xaa\x23\x4b\x57\x7b\xf1\xec\x1d\xd7\x2f\xcb\x98\x8a\xef\xd6\x8e\x18\xd9" "\x9d\xba\x2c\x67\xfe\x41\x5d\xee\xf2\xfe\xb1\x26\xbb\x9f\x63\x7e\x99\x32" "\x5a\x65\xe4\xfc\x56\x46\x26\xea\xd8\xca\x6c\x3c\x77\x70\x26\x8e\xf9\xec" "\xec\x1c\x69\x32\x8d\xad\x60\x2f\xef\x18\x69\xc7\x24\x3e\x57\xce\x2f\xd4" "\x65\x39\x9f\xdf\xed\x97\xf3\x81\xd8\x99\x89\xa9\xbe\xb3\xef\x85\x83\x73" "\x9e\x7c\xed\xcf\x7f\xfc\xc9\xbd\xf6\xc3\xfb\xf7\xee\x2e\x8f\x9f\x9e\x29" "\x1d\xcd\xb9\xba\xec\x54\x8f\xad\xdd\x99\x98\xee\xcb\xc4\x8b\x5f\xe4\x4c" "\xec\x32\x51\x65\xe2\xca\xd6\xfa\x5c\x7e\x98\x1f\x67\x3c\x63\x79\x3d\x4b" "\x59\xcc\xcf\x32\x9f\x95\x2c\x64\x2c\x3f\xa8\x6a\xf3\xf5\xf9\x5c\xf4\x5d" "\xf2\xfb\x64\xea\xd6\x67\xd6\x5e\x3f\x2c\x92\xa1\xfa\x0c\xed\x3e\x59\xc7" "\x8b\xe9\x95\xea\xd8\x8b\x59\xcc\x8f\xf2\x56\xee\x64\x21\xaf\x56\xff\xa6" "\x32\x99\x6f\x65\x26\x33\x99\xed\x7b\x86\xaf\x1c\xe1\x95\xb6\xb1\xcf\x55" "\xdf\xf9\xf2\x9e\xc1\x5f\xff\x7a\x5d\x69\x25\xf9\x7d\x5d\x9e\x0e\x65\x5e" "\x9f\xeb\xcb\x6b\xff\x6b\xee\x68\xd5\xd6\xbf\x65\x3b\x4b\x97\x9e\xfc\xfd" "\xa8\xf9\x95\xba\x52\x8e\xf1\xeb\xba\x3c\x1d\x76\x66\x62\xb2\x2f\x13\xcf" "\x1f\x9c\x89\x3f\x54\x2f\x2b\xcb\xed\x87\xf7\x97\xee\xcd\xbf\x7d\xb4\xe1" "\x2e\x7d\x50\x57\xca\xeb\xe8\xb7\xa7\xea\x2e\x51\x9e\x2f\x97\xca\x27\xab" "\x5a\xfb\xec\xd9\x51\xb6\x3d\xbf\x67\xdb\x64\xd5\x76\x79\xab\xad\xb1\xab" "\xed\xca\x56\x5b\xf7\x4a\x5d\xdb\xf7\x4a\x1d\xaa\xdf\xc3\xed\xee\x69\xaa" "\x6a\x7b\x71\xcf\xb6\xe9\xaa\xed\x6a\x5f\xdb\x5e\xef\xb7\x00\x38\xf5\x2e" "\x7c\xe3\xc2\x50\xeb\x1f\xad\xbf\xb5\x3e\x6c\xfd\xa6\x75\xaf\xf5\xda\xc8" "\xf7\x87\xbf\x3d\xfc\xf2\x50\xce\xff\xe5\xfc\x77\x9a\x13\xe7\xbe\xda\x78" "\xb9\xf8\x53\x3e\xcc\x2f\xb6\x3f\xff\x03\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x9f\xdf\xf2" "\xbb\xef\xdd\x9f\x6f\xb7\x17\x96\x76\x54\x3a\x9d\xce\xfb\xfb\x34\x9d\xe5" "\x4a\xef\xe7\xcc\x4e\x70\xd0\x97\x9e\x49\x06\x35\xe5\xa1\x24\xa7\x23\xf3" "\xff\xe9\x74\x3a\xf5\x96\xe2\x34\xc4\x73\x70\xa5\x53\x1a\x4e\xe7\xa9\x8f" "\xd5\x4c\xb2\x57\xd3\xb5\xc1\x27\x61\xc0\x2f\x4c\xc0\x53\x77\x73\xe5\xc1" "\xdb\x37\x97\xdf\x7d\xef\x9b\x8b\x0f\xe6\xdf\x5c\x78\x73\xe1\xe1\xec\xcc" "\xcc\xec\xc4\xec\xcc\xab\xd3\x37\xef\x2e\xb6\x17\x26\xba\x8f\x83\x8e\x12" "\x78\x1a\xb6\x6f\xfa\x83\x8e\x04\x00\x00\x00\x00\x00\x00\x00\x00\x00\x38" "\xaa\x93\xf8\xef\x04\xfb\x8f\x3e\x72\x92\x53\x05\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xce\xa8\xb9" "\xf1\x34\x1f\xa7\xc8\xe4\xc4\x8d\x89\x72\x7d\x63\x7d\xba\x5d\x2e\xbd\xfa" "\xf6\x9e\xcd\x24\x8d\x24\xc5\xcf\x93\xe2\xa3\xe4\x56\xba\x4b\x46\xfb\xba" "\x2b\xf6\x1b\xe7\xd1\xe2\xec\x1b\x1f\x7f\xba\xf1\xc9\x76\x5f\xcd\xde\xfe" "\x8d\x83\x8e\x3b\x9a\xb5\x7a\xc9\x58\x92\x73\x75\xf9\xa4\xfa\xbb\xfd\x3f" "\xf7\x57\x6c\xcd\xb0\x4c\xd8\xf5\x5e\xe2\x60\xd0\xfe\x1b\x00\x00\xff\xff" "\xa9\xc9\x06\x70", 1606); syz_mount_image(/*fs=*/0x20000080, /*dir=*/0x20000140, /*flags=MS_STRICTATIME|MS_SILENT|MS_NOATIME*/ 0x1008400, /*opts=*/0x20000a40, /*chdir=*/1, /*size=*/0x646, /*img=*/0x200003c0); memcpy((void*)0x20000100, "./file0\000", 8); res = syscall(__NR_openat, /*fd=*/0xffffff9c, /*file=*/0x20000100ul, /*flags=*/0ul, /*mode=*/0ul); if (res != -1) r[6] = res; memcpy((void*)0x20000180, "./file1\000", 8); syscall(__NR_unlinkat, /*fd=*/r[6], /*path=*/0x20000180ul, /*flags=*/0ul); } int main(void) { syscall(__NR_mmap, /*addr=*/0x1ffff000ul, /*len=*/0x1000ul, /*prot=*/0ul, /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/-1, /*offset=*/0ul); syscall(__NR_mmap, /*addr=*/0x20000000ul, /*len=*/0x1000000ul, /*prot=PROT_WRITE|PROT_READ|PROT_EXEC*/ 7ul, /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/-1, /*offset=*/0ul); syscall(__NR_mmap, /*addr=*/0x21000000ul, /*len=*/0x1000ul, /*prot=*/0ul, /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/-1, /*offset=*/0ul); const char* reason; (void)reason; use_temporary_dir(); loop(); return 0; }