// https://syzkaller.appspot.com/bug?id=a1954eed3adfde914df9a0a2d0b7d1ecb876072f // 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) 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); } } void execute_one(void) { memcpy((void*)0x200000c0, "exfat\000", 6); memcpy((void*)0x20001540, "./file0\000", 8); memcpy((void*)0x20000300, "iocharset", 9); *(uint8_t*)0x20000309 = 0x3d; memcpy((void*)0x2000030a, "ascii", 5); *(uint8_t*)0x2000030f = 0x2c; memcpy((void*)0x20000310, "discard", 7); *(uint8_t*)0x20000317 = 0x2c; memcpy((void*)0x20000318, "dmask", 5); *(uint8_t*)0x2000031d = 0x3d; sprintf((char*)0x2000031e, "%023llo", (long long)7); *(uint8_t*)0x20000335 = 0x2c; memcpy((void*)0x20000336, "uid", 3); *(uint8_t*)0x20000339 = 0x3d; sprintf((char*)0x2000033a, "0x%016llx", (long long)0); *(uint8_t*)0x2000034c = 0x2c; memcpy((void*)0x2000034d, "dmask", 5); *(uint8_t*)0x20000352 = 0x3d; sprintf((char*)0x20000353, "%023llo", (long long)0x6a); *(uint8_t*)0x2000036a = 0x2c; memcpy((void*)0x2000036b, "iocharset", 9); *(uint8_t*)0x20000374 = 0x3d; memcpy((void*)0x20000375, "iso8859-1", 9); *(uint8_t*)0x2000037e = 0x2c; memcpy((void*)0x2000037f, "gid", 3); *(uint8_t*)0x20000382 = 0x3d; sprintf((char*)0x20000383, "0x%016llx", (long long)0); *(uint8_t*)0x20000395 = 0x2c; memcpy((void*)0x20000396, "allow_utime", 11); *(uint8_t*)0x200003a1 = 0x3d; sprintf((char*)0x200003a2, "%023llo", (long long)7); *(uint8_t*)0x200003b9 = 0x2c; memcpy((void*)0x200003ba, "umask", 5); *(uint8_t*)0x200003bf = 0x3d; sprintf((char*)0x200003c0, "%023llo", (long long)0x3ff); *(uint8_t*)0x200003d7 = 0x2c; *(uint8_t*)0x200003d8 = 0; memcpy( (void*)0x20001580, "\x78\x9c\xec\xdc\x7b\x98\x8e\x55\xdb\x30\xf0\x75\xae\xb5\x2e\xc6\x34\xe9" "\x6e\x92\xcd\xb0\xce\x75\x5e\xdc\x69\xb0\x4c\x92\x64\x93\x90\x4d\x92\x24" "\x49\x92\x5d\x42\xd2\x24\x49\x42\x62\xc8\x2e\x69\x48\x42\xb6\x93\x64\x33" "\x84\x64\x33\x8d\x49\x63\xbf\xdf\x64\x9f\x34\x79\xa4\x49\x92\x90\xec\xc2" "\xfa\x0e\x3d\xcf\xf7\x7a\x9e\xb7\xe7\x7d\xfb\xde\xef\xe9\xfb\x1c\xef\x3b" "\xe7\xef\x38\xd6\x71\xaf\x73\xae\xfb\x3c\xef\xb5\xe6\x9c\x63\xae\xcd\x1f" "\xf7\x0f\x3d\x47\xd5\x6b\x51\xbf\x76\x33\x22\x12\xff\x12\xf8\xeb\x4b\x8a" "\x10\x22\x46\x08\x31\x4c\x08\x71\x83\x10\x22\x10\x42\x54\x8a\xaf\x14\x7f" "\xe5\x78\x01\x05\x29\xff\xda\x87\xb0\x3f\xd7\xa3\xe9\xd7\x7a\x05\xec\x5a" "\xe2\xfe\xe7\x6d\xdc\xff\xbc\x8d\xfb\x9f\xb7\x71\xff\xf3\x36\xee\x7f\xde" "\xc6\xfd\xcf\xdb\xb8\xff\x79\x1b\xf7\x9f\xb1\xbc\x6c\xfb\x9c\x62\x37\xf2" "\xc8\xbb\x83\x9f\xff\xe7\x65\x7c\xfe\xff\x1f\x24\xb7\xfc\xe4\x6f\x36\x96" "\xbf\xb9\xd7\x7f\x21\x85\xfb\x9f\xb7\x71\xff\xf3\x36\xee\x7f\xde\xc6\xfd" "\xcf\xdb\xb8\xff\x79\x1b\xf7\xff\x7f\xbe\x5a\xff\xc9\x31\xee\x7f\xde\xc6" "\xfd\x67\x2c\x2f\xbb\xd6\xcf\x9f\x79\x5c\xdb\x71\xad\xff\xfe\x18\x63\x8c" "\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18" "\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31" "\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63" "\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6" "\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c" "\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18" "\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\xe5" "\x0d\xe7\xfc\x55\x5a\x08\x71\xe5\x35\xb8\xd6\x8b\x62\x8c\x31\xc6\x18\x63" "\x8c\x31\xc6\xd8\x9f\xca\xe7\xbf\xd6\x2b\x60\x8c\x31\xc6\x18\x63\x8c\x31" "\xc6\xd8\xff\x7b\x20\xa4\x50\x42\x8b\x40\xe4\x13\xf9\x45\x8c\x28\x20\x62" "\xc5\x75\x22\x4e\x5c\x2f\x0a\x8a\x1b\x44\x44\xdc\x28\xe2\xc5\x4d\xa2\x90" "\xb8\x59\x14\x16\x45\x44\x51\x51\x4c\x24\x88\xe2\xa2\x84\x30\x02\x85\x15" "\x24\x42\x51\x52\x94\x12\x51\x71\x8b\x28\x2d\x6e\x15\x89\xa2\x8c\x28\x2b" "\xca\x09\x27\xca\x8b\x24\x71\x9b\xa8\x20\x6e\x17\x15\xc5\x1d\xa2\x92\xb8" "\x53\x54\x16\x77\x89\x2a\xa2\xaa\xa8\x26\xaa\x8b\xbb\x45\x0d\x71\x8f\xa8" "\x29\x6a\x89\xda\xe2\x5e\x51\x47\xd4\x15\xf5\x44\x7d\x71\x9f\x68\x20\xee" "\x17\x0d\xc5\x03\xa2\x91\x78\x50\x34\x16\x0f\x89\x26\xe2\x61\xd1\x54\x3c" "\x22\x9a\x89\x47\x45\x73\xf1\x98\x68\x21\x1e\x17\x2d\xc5\x13\xa2\x95\x68" "\x2d\xda\x88\xb6\xa2\xdd\xff\x55\xfe\x2b\xa2\xaf\x78\x55\xf4\x13\xfd\x45" "\x8a\x18\x20\x06\x8a\xd7\xc4\x20\x31\x58\x0c\x11\x43\xc5\x30\xf1\xba\x18" "\x2e\xde\x10\x23\xc4\x9b\x22\x55\x8c\x14\xa3\xc4\x5b\x62\xb4\x78\x5b\x8c" "\x11\xef\x88\xb1\x62\x9c\x18\x2f\xde\x15\x13\xc4\x44\x31\x49\x4c\x16\x53" "\xc4\x54\x91\x26\xde\x13\xd3\xc4\xfb\x62\xba\xf8\x40\xcc\x10\x33\xc5\x2c" "\x31\x5b\xa4\x8b\x39\x62\xae\xf8\x50\xcc\x13\xf3\xc5\x02\xf1\x91\x58\x28" "\x3e\x16\x8b\xc4\x62\xb1\x44\x2c\x15\x19\xe2\x13\x91\x29\x96\x89\x2c\xf1" "\xa9\x58\x2e\x3e\x13\xd9\x62\x85\x58\x29\x56\x89\xd5\x62\x8d\x58\x2b\xd6" "\x89\xf5\x62\x83\xd8\x28\x36\x89\xcd\x62\x8b\xd8\x2a\xb6\x89\xed\xe2\x73" "\xb1\x43\xec\x14\xbb\xc4\x6e\xb1\x47\xec\x15\xfb\xc4\x17\x62\xbf\xf8\x52" "\x1c\x10\x5f\x89\x1c\xf1\xf5\x7f\x31\xff\xec\xbf\xcb\xef\x05\x02\x04\x48" "\x90\xa0\x41\x43\x3e\xc8\x07\x31\x10\x03\xb1\x10\x0b\x71\x10\x07\x05\xa1" "\x20\x44\x20\x02\xf1\x10\x0f\x85\xa0\x10\x14\x86\xc2\x50\x14\x8a\x42\x02" "\x24\x40\x09\x28\x01\x08\x08\x04\x04\x25\xa1\x24\x44\x21\x0a\xa5\xa1\x34" "\x24\x42\x22\x94\x85\xb2\xe0\xc0\x41\x12\x24\x41\x05\xb8\x1d\x2a\x42\x45" "\xa8\x04\x95\xa0\x32\x54\x86\x2a\x50\x15\xaa\x42\x75\xa8\x0e\x35\xa0\x06" "\xd4\x84\x9a\x50\x1b\x6a\x43\x1d\xa8\x03\xf5\xa0\x1e\xdc\x07\xf7\xc1\xfd" "\xd0\x10\x1a\x42\x23\x68\x04\x8d\xa1\x31\x34\x81\x26\xd0\x14\x9a\x42\x33" "\x68\x06\xcd\xa1\x39\xb4\x80\x16\xd0\x12\x5a\x42\x2b\x68\x05\x6d\xa0\x0d" "\xb4\x83\x76\xd0\x1e\xda\x43\x07\xe8\x00\x9d\xa0\x13\x74\x86\xce\xd0\x05" "\xba\x40\x32\x24\x43\x57\xe8\x0a\xdd\xa0\x1b\x74\x87\xee\xd0\x03\x7a\x40" "\x4f\xe8\x09\xbd\xa0\x37\xf4\x86\x57\xe0\x15\x78\x15\x5e\x85\xfe\x50\x47" "\x0e\x80\x81\x30\x10\x06\xc1\x20\x18\x02\x43\x61\x28\xbc\x0e\xc3\xe1\x0d" "\x78\x03\xde\x84\x54\x18\x09\xa3\xe0\x2d\x78\x0b\xde\x86\x31\x70\x06\xc6" "\xc2\x38\x18\x0f\xe3\xa1\x86\x9c\x08\x93\x60\x32\x90\x9c\x0a\x69\x90\x06" "\xd3\x60\x1a\x4c\x87\xe9\x30\x03\x66\xc2\x4c\x98\x0d\xe9\x30\x07\xe6\xc2" "\x5c\x98\x07\xf3\x61\x3e\x7c\x04\x0b\xe1\x63\xf8\x18\x16\xc3\x62\x58\x0a" "\x19\x90\x01\x99\xb0\x0c\xb2\x20\x0b\x96\xc3\x59\xc8\x86\x15\xb0\x12\x56" "\xc1\x6a\x58\x03\xab\x61\x1d\xac\x87\x75\xb0\x11\x36\xc1\x46\xd8\x02\x5b" "\x60\x1b\x6c\x83\xcf\xe1\x73\xd8\x09\x3b\x61\x37\xec\x86\xbd\xb0\x17\xbe" "\x80\x2f\xe0\x4b\xf8\x12\x52\x21\x07\x72\xe0\x20\x1c\x84\x43\x70\x08\x0e" "\xc3\x61\xc8\x85\x5c\x38\x02\x47\xe0\x28\x1c\x85\x63\x70\x0c\x8e\xc3\x71" "\x38\x01\x27\xe1\x14\x9c\x84\xd3\x70\x1a\xce\xc0\x59\x38\x07\xe7\xe0\x02" "\x5c\x80\x8b\xf0\x52\xc2\x77\xcd\xf7\x96\xd9\x90\x2a\xe4\x15\x5a\x6a\x99" "\x4f\xe6\x93\x31\x32\x46\xc6\xca\x58\x19\x27\xe3\x64\x41\x59\x50\x46\x64" "\x44\xc6\xcb\x78\x59\x48\x16\x92\x85\x65\x61\x59\x54\x16\x95\x09\x32\x41" "\x96\x90\x25\x24\x4a\x94\x24\x43\x59\x52\x96\x94\x51\x19\x95\xa5\x65\x69" "\x99\x28\x13\x65\x59\x59\x56\x3a\xe9\x64\x92\x4c\x92\x15\x64\x05\x59\x51" "\x56\x94\x95\xe4\x9d\xb2\xb2\xbc\x4b\x56\x91\x55\x65\x47\x57\x5d\x56\x97" "\x35\x64\x27\x57\x53\xd6\x92\xb5\x65\x6d\x59\x47\xd6\x95\xf5\x64\x7d\x59" "\x5f\x36\x90\x0d\x64\x43\xd9\x50\x36\x92\x8d\x64\x63\xd9\x58\x36\x91\x0f" "\xcb\xa6\x72\x00\x0c\x81\x47\xe5\x95\xce\xb4\x90\x23\xa1\xa5\x1c\x05\xad" "\x64\x6b\xd9\x46\xb6\x95\x6f\xc3\x93\xb2\xbd\x1c\x03\x1d\x64\x47\xd9\x49" "\x3e\x2d\xc7\xc1\x58\xe8\x22\xdb\xbb\x64\xf9\x9c\xec\x2a\x27\x41\x37\xf9" "\x82\x9c\x0c\x2f\xca\x1e\x72\x2a\xf4\x94\x2f\xcb\x5e\xb2\xb7\xec\x23\x5f" "\x91\x7d\x65\x07\xd7\x4f\xf6\x97\x33\x60\x80\x1c\x28\x67\xc3\x20\x39\x58" "\x0e\x91\x43\xe5\x3c\xa8\x2b\xaf\x74\xac\x9e\x7c\x53\xa6\xca\x91\x72\x94" "\x7c\x4b\x2e\x85\xb7\xe5\x18\xf9\x8e\x1c\x2b\xc7\xc9\xf1\xf2\x5d\x39\x41" "\x4e\x94\x93\xe4\x64\x39\x45\x4e\x95\x69\xf2\x3d\x39\x4d\xbe\x2f\xa7\xcb" "\x0f\xe4\x0c\x39\x53\xce\x92\xb3\x65\xba\x9c\x23\xe7\xca\x0f\xe5\x3c\x39" "\x5f\x2e\x90\x1f\xc9\x85\xf2\x63\xb9\x48\x2e\x96\x4b\xe4\x52\x99\x21\x3f" "\x91\x99\x72\x99\xcc\x92\x9f\xca\xe5\xf2\x33\x99\x2d\x57\xc8\x95\x72\x95" "\x5c\x2d\xd7\xc8\xb5\x72\x9d\x5c\x2f\x37\xc8\x8d\x72\x93\xdc\x2c\xb7\xc8" "\xad\x72\x9b\xdc\x2e\x3f\x97\x3b\xe4\x4e\xb9\x4b\xee\x96\x7b\xe4\x5e\xb9" "\x4f\x7e\x21\xf7\xcb\x2f\xe5\x01\xf9\x95\xcc\x91\x5f\xcb\x83\xf2\x2f\xf2" "\x90\xfc\x46\x1e\x96\xdf\xca\x5c\xf9\x9d\x3c\x22\xbf\x97\x47\xe5\x0f\xf2" "\x98\xfc\x51\x1e\x97\x3f\xc9\x13\xf2\xa4\x3c\x25\x7f\x96\xa7\xe5\x2f\xf2" "\x8c\x3c\x2b\xcf\xc9\xf3\xf2\x82\xfc\x55\x5e\x94\x97\xe4\x65\xe9\xa5\x50" "\xa0\xa4\x52\x4a\xab\x40\xe5\x53\xf9\x55\x8c\x2a\xa0\x62\xd5\x75\x2a\x4e" "\x5d\xaf\x0a\xaa\x1b\x54\x44\xdd\xa8\xe2\xd5\x4d\xaa\x90\xba\x59\x15\x56" "\x45\x54\x51\x55\x4c\x25\xa8\xe2\xaa\x84\x32\x0a\x95\x55\xa4\x42\x55\x52" "\x95\x52\x51\x75\x8b\x2a\xad\x6e\x55\x89\xaa\x8c\x2a\xab\xca\x29\xa7\xca" "\xab\x24\x75\x9b\xaa\xa0\x6e\x57\x15\xd5\x1d\xaa\x92\xba\x53\x55\x56\x77" "\xa9\x2a\xaa\xaa\xaa\xa6\xaa\xab\xbb\x55\x0d\x75\x8f\xaa\xa9\x6a\xa9\xda" "\xea\x5e\x55\x47\xd5\x55\xf5\x54\x7d\x75\x9f\x6a\xa0\xee\x57\x0d\xd5\x03" "\xaa\x91\x7a\x50\x35\x56\x0f\xa9\x26\xea\x61\xd5\x54\x3d\xa2\x9a\xa9\x47" "\x55\x73\xf5\x98\x6a\xa1\x1e\x57\x2d\xd5\x13\xaa\x95\x6a\xad\xda\xa8\xb6" "\xaa\x9d\x7a\x52\xb5\x57\x4f\xa9\x0e\xaa\xa3\xea\xa4\x9e\x56\x9d\xd5\x33" 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"\x1b\x26\x87\xcf\x85\x5d\xc3\xe7\xff\xf0\x78\x4a\x38\x20\x1c\x18\xbe\x16" "\xbe\x16\x7a\xff\x80\x5a\x12\x5d\x1a\xcd\x88\x7e\x12\xcd\x8c\x2e\x8b\x66" "\x45\x3f\x8d\x2e\x8f\x7e\x16\xcd\x8e\xae\x88\xae\x8c\xae\x8a\xae\x8e\xae" "\x89\xae\x8d\xae\x8b\xae\x8f\x6e\x88\x6e\x8c\x6e\x8a\x6e\x8e\x6e\x89\x6e" "\x8d\x6e\x8b\x7a\x5f\x3f\xbf\x70\xe0\xa4\x53\x4e\xbb\xc0\xe5\x73\xf9\x5d" "\x8c\x2b\xe0\x62\xdd\x75\x2e\xce\x5d\xef\x0a\xba\x1b\x5c\xc4\xdd\xe8\xe2" "\xdd\x4d\xae\x90\xbb\xd9\x15\x76\x45\x5c\x51\x57\xcc\x25\xb8\xe2\xae\x84" "\x33\x0e\x9d\x75\xe4\x42\x57\xd2\x95\x72\x51\x77\x8b\x2b\xed\x6e\x75\x89" "\xae\x8c\x2b\xeb\xca\x39\xe7\xca\xbb\x24\xd7\xd6\xb5\x73\xed\x5c\x7b\xf7" "\x94\xeb\xe0\x3a\xba\x4e\xee\x69\xf7\xb4\x7b\xc6\x3d\xe3\x9e\x75\xcf\xba" "\xe7\x5c\x57\xf7\xbc\xeb\xe6\x5e\x70\xdd\xdd\x8b\xae\x87\x7b\xc9\xbd\xe4" "\x5e\x76\xbd\x5c\x6f\xd7\xc7\xbd\xe2\xfa\xba\x57\x5d\x3f\xd7\xdf\xa5\xb8" "\x14\x37\xd0\x0d\x74\x83\xdc\x20\x37\xc4\x0d\x71\xc3\xdc\x30\x37\xdc\x0d" "\x77\x23\xdc\x08\x97\xea\x52\xdd\x28\x37\xca\x8d\x76\xa3\xdd\x18\x37\xc6" "\x8d\x75\x63\xdd\x78\x37\xde\x4d\x70\x13\xdc\x24\x37\xc9\x4d\x71\x53\x5c" "\x9a\x4b\x73\xd3\xdc\x34\x37\xdd\x4d\x77\x33\xdc\x0c\x37\xcb\xcd\x72\xe9" "\x2e\xdd\xcd\x75\x73\xdd\x3c\x37\xcf\x2d\x70\x0b\xdc\xc2\xc4\x85\x6e\x91" "\x5b\xe4\x96\xb8\x25\x2e\xc3\x65\xb8\x4c\x97\xe9\xb2\x5c\x96\x5b\xee\x96" "\xbb\x6c\x97\xed\x56\xba\x95\x6e\xb5\x5b\xed\xd6\xba\xb5\x6e\xbd\x5b\xef" "\x36\xba\x8d\x6e\xb3\xdb\xec\xb6\xba\xad\x6e\xbb\xdb\xee\x76\xb8\x1d\x6e" "\x97\xdb\xe5\xf6\xb8\x3d\x6e\x9f\xdb\xe7\xf6\xbb\xfd\xee\x80\x3b\xe0\x72" "\x5c\x8e\x3b\xe8\x0e\xba\x43\xee\x90\x3b\xec\xbe\x75\xb9\xee\x3b\x77\xc4" "\x7d\xef\x8e\xba\x1f\xdc\x31\xf7\xa3\x3b\xee\x7e\x72\x27\xdc\x49\x77\xca" "\xfd\xec\x4e\xbb\x5f\xdc\x19\x77\xd6\x9d\x73\xe7\xdd\x05\xf7\xab\xbb\xe8" "\x2e\xb9\xcb\xce\xbb\xb4\xc8\x7b\x91\x69\x91\xf7\x23\xd3\x23\x1f\x44\x66" "\x44\x66\x46\x66\x45\x66\x47\xd2\x23\x73\x22\x73\x23\x1f\x46\xe6\x45\xe6" "\x47\x16\x44\x3e\x8a\x2c\x8c\x7c\x1c\x59\x14\x59\x1c\x59\x12\x59\x1a\xc9" "\x88\x7c\x12\xc9\x8c\x2c\x8b\x64\x45\x3e\x8d\x2c\x8f\x7c\x16\xc9\x8e\xac" "\x88\xac\x8c\xac\x8a\xac\x8e\xac\x89\x78\x5f\x7c\x47\xe8\x4b\xfa\x52\x3e" "\xea\x6f\xf1\xa5\xfd\xad\x3e\xd1\x97\xf1\x65\x7d\x39\xef\x7c\x79\x9f\xe4" "\x6f\xf3\x15\xfc\xed\xbe\xa2\xbf\xc3\x57\xf2\x77\xfa\xca\xfe\x2e\x5f\xc5" "\x57\xf5\xd5\xfc\x13\xbe\x95\x6f\xed\xdb\xf8\xb6\xbe\x9d\x7f\xd2\xb7\xf7" "\x4f\xf9\x0e\xbe\xa3\xef\xe4\x9f\xf6\x9d\xfd\x33\xbe\x8b\x7f\xd6\x27\xfb" "\xe7\x7c\x57\xff\xbc\xef\xe6\x5f\xf0\xdd\xfd\x8b\xbe\x87\x7f\xc9\xf7\xf4" "\x2f\xfb\x5e\xbe\xb7\xef\xe3\x5f\xf1\x7d\xfd\xab\xbe\x9f\xef\xef\x53\xfc" "\x00\x3f\xd0\xbf\xe6\x07\xf9\xc1\x7e\x88\x1f\xea\x87\xf9\xd7\xfd\x70\xff" "\x86\x1f\xe1\xdf\xf4\xa9\x7e\xa4\x1f\xe5\xdf\xf2\xa3\xfd\xdb\x7e\x8c\x7f" "\xc7\x8f\xf5\xe3\xfc\x78\xff\xae\x9f\xe0\x27\xfa\x49\x7e\xb2\x9f\xe2\xa7" "\xfa\x34\xff\x9e\x9f\xe6\xdf\xf7\xd3\xfd\x07\x7e\x86\x9f\xe9\x67\xf9\xd9" "\x3e\xdd\xcf\xf1\x73\xfd\x87\x7e\x9e\x9f\xef\x17\xf8\x8f\xfc\x42\xff\xb1" "\x5f\xe4\x17\xfb\x25\x7e\xa9\xcf\xf0\x9f\xf8\x4c\xbf\xcc\x67\xf9\x4f\xfd" "\x72\xff\x99\xcf\xf6\x2b\xfc\x4a\xbf\xca\xaf\xf6\x6b\xfc\x5a\xbf\xce\xaf" "\xf7\x1b\xfc\x46\xbf\xc9\x6f\xf6\x5b\xfc\x56\xbf\xcd\x6f\xf7\x9f\xfb\x1d" "\x7e\xa7\xdf\xe5\x77\xfb\x3d\x7e\xaf\xdf\xe7\xbf\xf0\xfb\xfd\x97\xfe\x80" "\xff\xca\xe7\xf8\xaf\xfd\x41\xff\x17\x7f\xc8\x7f\xe3\x0f\xfb\x6f\x7d\xae" "\xff\xce\x1f\xf1\xdf\xfb\xa3\xfe\x07\x7f\xcc\xff\xe8\x8f\xfb\x9f\xfc\x09" "\x7f\xd2\x9f\xf2\x3f\xfb\xd3\xfe\x17\x7f\xc6\x9f\xf5\xe7\xfc\x79\x7f\xc1" "\xff\xea\x2f\xfa\x4b\xfe\xb2\xf7\xfe\x5a\x3f\x49\x67\x8c\x31\xc6\x18\xfb" "\xef\x40\xfd\xc1\xf1\x01\xff\xe4\x67\xf2\x6f\xe3\x8a\x81\x42\x88\xeb\x77" "\x16\xcb\xfd\xf7\x35\x37\x17\xfe\xeb\x7c\xb0\x4c\xe8\x1c\x11\x42\x3c\xd7" "\xbf\xe7\xa3\xff\x7b\xd4\xa9\x93\x92\x92\xf2\xb7\xf7\x66\x2b\x11\x94\x5a" "\x2c\x84\x88\x5c\xcd\xcf\x27\xae\xc6\x2b\x44\x27\xf1\x8c\x48\x16\x1d\x45" "\x85\x7f\xba\xbe\xc1\xb2\xf7\x05\xfa\x83\xfa\xd1\x3b\x85\x88\xfd\xbb\x9c" "\x18\x71\x35\xbe\x5a\xff\xf6\xff\xa0\xfe\x93\x4f\x8f\xcf\xac\x1c\x9e\x8b" "\xff\x4f\xea\x2f\x16\x22\xb1\xd4\xd5\x9c\x02\xe2\x6a\x7c\xb5\x7e\xc5\xff" "\xa0\x7e\x91\xf6\x7f\xb0\xfe\x02\xdf\xa4\x09\xd1\xe1\xef\x72\xe2\xc4\xd5" "\xf8\x6a\xfd\x24\xf1\x94\x78\x5e\x24\xff\xc3\x3b\x19\x63\x8c\x31\xc6\x18" "\x63\x8c\xb1\xbf\x1a\x2c\xab\x75\xff\xa3\xfb\xe7\x2b\xf7\xe7\x09\xfa\x6a" "\x4e\x7e\x71\x35\xfe\xa3\xfb\x73\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x5d" "\x7b\x2f\xf6\xee\xf3\xec\x93\xc9\xc9\x1d\xbb\xf3\x84\x27\x3c\xe1\xc9\xbf" "\x4d\xae\xf5\x7f\x26\xc6\x18\x63\x8c\x31\xc6\xd8\x9f\xed\xea\x45\xff\xb5" "\x5e\x09\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63" "\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6" "\x18\x63\x8c\x31\x96\x77\xfd\xff\xf8\x3a\xb1\x6b\xbd\x47\xc6\x18\x63\x8c" "\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18" "\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31" "\xc6\x18\x63\x8c\x31\xc6\x18\x63\xec\x5a\xfb\x5f\x01\x00\x00\xff\xff\x62" "\xb4\x38\x3c", 5367); syz_mount_image( /*fs=*/0x200000c0, /*dir=*/0x20001540, /*flags=MS_NOEXEC|MS_NODEV|MS_MANDLOCK|0x20000000*/ 0x2000004c, /*opts=*/0x20000300, /*chdir=*/1, /*size=*/0x14f5, /*img=*/0x20001580); memcpy((void*)0x20000100, "./file0\000", 8); memcpy((void*)0x200000c0, "./file0\000", 8); syscall( __NR_mount, /*src=*/0x20000100ul, /*dst=*/0x200000c0ul, /*type=*/0ul, /*flags=MS_I_VERSION|MS_PRIVATE|MS_STRICTATIME|MS_SILENT|MS_RELATIME|0x1002*/ 0x1a49002ul, /*data=*/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); use_temporary_dir(); loop(); return 0; }