// https://syzkaller.appspot.com/bug?id=b3d4ed3e41b3085ce97f4504f4183e3f99115fb2 // 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_getegid #define __NR_getegid 177 #endif #ifndef __NR_memfd_create #define __NR_memfd_create 279 #endif #ifndef __NR_mmap #define __NR_mmap 222 #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: 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); } } uint64_t r[1] = {0xffffffffffffffff}; void execute_one(void) { intptr_t res = 0; res = syscall(__NR_getegid); if (res != -1) r[0] = res; memcpy((void*)0x20000100, "ext4\000", 5); memcpy((void*)0x20000200, "./file1\000", 8); *(uint16_t*)0x20001340 = r[0]; sprintf((char*)0x20001342, "%023llo", (long long)r[0]); *(uint64_t*)0x20001359 = r[0]; memcpy( (void*)0x20001361, "\xca\x42\xad\x08\x00\x00\x12\x00\x40\x7e\x4e\x12\x10\x4f\x0c\xd5\x07\x00" "\x00\xff\xff\xff\xff\xff\xff\xff\x7f\x8a\x4e\x67\xff\x07\x00\x00\x20\x00" "\x00\x00\x99\x6b\x10\x01\x8d\x04\x45\x4e\x0c\xff\x15\x62\xb3\x6f\x41\x87" "\xb1\xb0\xf8\xa2\x85\x43\x76\xfb\xe5\x8f\x7b\xe5\x90\xb1\x46\xa6\x7a\x98" "\x00\x04\xf0\xda\xcd\x6b\x11\x64\x22\x71\x11\x21\x45\xfc\x76\xb3\x6f\xf9" "\xc9\x35\xde\xc4\x35\xf7\xe2\x6c\x79\x8d\xd6\x3a\xda\x0f\x1c\xcf\xd0\xb0" "\x08\xed\xa4\x7d\xf1\x78\x76\xe3\xa1\x14\xf3\x9a\x44\x86\x22\x54\xf0\x57" "\x75\x4a\x91\xf7\x05\x29\x73\x30\x27\x50\x4b\xa1\x22\xca\xae\x72\xd7\x69" "\x63\x73\xa2\x14\xa1\xf8\xb4\xbf\xc6\xb6\xc6\xe4\x7f\xfc\xba\x3f\x63\x98" "\xfb\xa3\x0e\xe4\x58\x45\xc6\x0e\xa0\x38\xd9\x3c\x42\x26\xda\x1a\xac\xba" "\x6b\xcb\x7a\xc7\xed\xc0\x05\xc2\xdd\x7a\xd8\xad\x1d\x48\x4c\xb7\xb0\x50" "\x74\x92\xb8\xf5\xe0\x33\x1d\x39\xa3\x03\x57\xdd\x33\x24\xce\x29\xb9\x68" "\xce\x10\xaa\x34\x06\x2a\x8d\xd6\xf3\xb0\x70\x27\xa0\x59\x64\xf8\x1b\xdb" "\x4a\x7b\xf3\xd3\x01\x4c\x9f\xa1\xaf\x4c\x35\x74\x6a\x0a\x72\xd9\x5b\x8e" "\x8d\x98\x08\x2c\x19\xd0\xc2\x4a\xdc\x36\x68\x3c\x19\x57\x70\x24\x3b\x59" "\x55\x6e\x86\x5e\x02\xe0\x89\x66\x3d\x72\x0a\x91\xb2\x82\x9e\x8e\x7b\xf0" "\x69\xd3\x69\xa9\xdd\x4d\xb5\x11\x9a\xd0\xcc\x5a\x37\x40\x5a\x7b\x8a\x15" "\xbf\xf6\x12\xbf\x00\x6a\xb8\xd5\xea\x13\x89\x8c\x08\xc2\x8f\xcd\x0d\x80" "\xda\xe6\x98\xa0\x51\x18\x4f\x1b\x78\xc7\xef\xff\x85\x4a\xcd\x69\x66\x93" "\x37\x4f\x81\x3e\xbb\x53\x3a\x08\x23\x60\xfc\x38\x0d\x66\x01\xfb\xdd\x5f" "\x22\xfc\x22\x35\x36\x5f\x93\x52\x99\xd1\x54\xaf\xdf\x0b\x41\xd2\xe6\xb2" "\x5f\x43\xb6\xb5\x26\xc7\x97\xb9\x62\x0d\xfc\x97\x0d\xd9\x16\xca\x0d\x84" "\x94\xf8\xc3\x50\xa8\x81\x37\xf1\xa2\x0c\xf8\x23\xf3\xc8\x5d\x0d\xa5\xfc" "\x0c\xc3\xe2\x4f\x3a\x34\x32\x7f\xa1\xa4\x55\x20\x87\x46\x83\x06\x8a\xbb" "\xfb\x30\xcc\x09\xb4\xd0\xcc\xb9\x9a\xca\xf1\xbb\x09\xda\x51\x32\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xd6\xe4\x73\xf0\x24\x11" "\xc5\x5e\xdf\x1c\xf0\xb2\x27\x5f\xd3\x01\x49\x4e\xd2\xb6\x30\x19\xcb\x63" "\x88\x77\xae\xf2\xd5\xf8\xf7\x2b\x43\xe2\xe4\xc7\x57\x05\x1e\x11\x19\xb0" "\x13\xbe\x08\x7d\xb3\x14\xb7\x0b\xb0\x1b\xe6\x83\xa5\x16\x1e\x2a\x50\x2e" "\xa7\xe8\xa9\x15\x89\x5c\x8c\x7b\x3e\xc7\xaa\x85\x2d\xb2\x28\xd2\xb3\x69" "\xa5\xce\xef\x33\x98\x61\x8c\x0c\x6e\xe3\xdb\x89\x8b\xc5\xdc\x6c\x2a\xdf" "\xfa\xa6\x26\x86\x7f\x70\x80\x46\x3b\x14\x0c\x29\x11\x5d\xab\x4d\x9b\xb1" "\x83\x57\x5f\xbd\xf6\xe5\x21\xda\x5e\x1e\xf4\x5e\xdc\x17\x31\xe6\x94\xd2" "\x3f\x91\x1b\x06\xdc\x53\x0a\x93\x9e\x98\x58\x1b\x9a\x63\x76\x74\x90\x6d" "\x5f\x95\x63\x18\x32\x5a\xcd\x5f\x25\x49\x57\xd7\x2d\xc1\x8e\x75\xac\xbf" "\xc3\x46\x2f\xb4\x5d\x79\x84\x3a\x25\x48\xfa\x06\x46\xa6\xad\xcb\x5c\x02" "\x05\x7c\x2c\xe4\x9e\xb8\x22", 655); *(uint32_t*)0x200015f0 = -1; memcpy( (void*)0x20000cc0, "\x78\x9c\xec\xdd\x51\x6b\x5c\x59\x1d\x00\xf0\xff\xbd\x99\xd9\x4d\xdb\xac" "\x33\xab\x22\xeb\x82\xbb\x8b\xbb\x92\x2e\xda\x99\x64\xa3\xbb\x41\x64\x77" "\x05\xd1\xa7\x82\x5a\xdf\x63\x4c\x26\x21\x64\x92\x09\x99\x49\x6d\x42\xd1" "\x14\x3f\x80\x20\xa2\x82\x4f\x3e\xf9\x22\xf8\x01\x04\xe9\x47\x10\xa1\xa0" "\xef\xa2\x45\x11\x6d\xf5\xc1\x07\xed\x95\x99\xb9\xd1\x26\x99\x49\x86\x4e" "\x9a\xe9\x4e\x7e\x3f\x38\xbd\xe7\xdc\x73\xef\xfd\x9f\x73\x69\xce\xdc\x3b" "\x73\xb8\x37\x80\x0b\xeb\xb5\x88\x78\x3f\x22\x26\x22\xe2\xcd\x88\x28\xe5" "\xeb\xd3\x3c\x2d\xb4\x0b\xfb\xdd\xed\x1e\x3e\xb8\xbd\xd4\x4e\x49\x64\xd9" "\x8d\xbf\x25\x91\xe4\xeb\x0e\x8e\xd5\x2e\x17\x22\xe2\x4a\x77\x97\x98\x8c" "\x88\xaf\x7f\x25\xe2\x5b\xc9\xf1\xb8\xcd\xdd\xbd\xf5\xc5\x7a\xbd\xb6\x9d" "\x97\xab\xad\x8d\xad\x6a\x73\x77\xef\xda\xda\xc6\xe2\x6a\x6d\xb5\xb6\x39" "\x37\x37\xfb\xf6\xfc\x3b\xc5\x98\x9f\xc9\x72\x43\xf5\xb3\x1c\x11\xef\x7e" "\xe9\xfe\x8f\xbe\xff\xf3\x2f\xbf\xfb\xeb\xcf\x7c\xfb\x0f\x0b\x7f\xb9\xfa" "\x9d\x76\xb3\xbe\xf0\xb1\x6e\xbb\x23\x62\x69\xa8\x00\x7d\x74\x8f\x5d\xec" "\x9c\x8b\x03\xed\x73\xb4\xfd\x34\x82\x8d\xc0\x44\xde\x9f\xe2\xc4\xa8\x5b" "\x02\x00\xc0\x20\xda\xd7\xf8\x1f\x8e\x88\x4f\x76\xae\xff\x4b\x31\xd1\xb9" "\x9a\x03\x00\x00\x00\xc6\x49\xf6\xde\x54\xfc\x3b\x89\xc8\x00\x00\x00\x80" "\xb1\x95\x46\xc4\x54\x24\x69\x25\x9f\x0b\x30\x15\x69\x5a\xa9\x74\xe7\xf0" "\x7e\x34\x2e\xa7\xf5\x46\xb3\xf5\xe9\x95\xc6\xce\xe6\x72\xbb\x2e\xa2\x1c" "\xc5\x74\x65\xad\x5e\x9b\xc9\xe7\x0a\x97\xa3\x98\xb4\xcb\xb3\xf9\x1c\xdb" "\x83\xf2\x5b\x47\xca\x73\x11\xf1\x62\x44\xfc\xb0\x74\xa9\x53\xae\x2c\x35" "\xea\xcb\xa3\xfe\xf2\x03\x00\x00\x00\x2e\x88\x2b\xaf\x1e\xbe\xff\xff\x67" "\x29\xed\xe4\x01\x00\x00\x80\x31\x53\xee\x5b\x00\x00\x00\x00\xc6\x85\x5b" "\x7e\x00\x00\x00\x18\x7f\xee\xff\x01\x00\x00\x60\xac\x7d\xf5\xfa\xf5\x76" "\xca\x0e\xde\xe3\xbd\x7c\x73\x77\x67\xbd\x71\xf3\xda\x72\xad\xb9\x5e\xd9" "\xd8\x59\xaa\x2c\x35\xb6\xb7\x2a\xab\x8d\xc6\x6a\xe7\x99\x7d\x1b\xa7\x1d" "\xaf\xde\x68\x6c\x7d\x36\x36\x77\x6e\x55\x5b\xb5\x66\xab\xda\xdc\xdd\x5b" "\xd8\x68\xec\x6c\xb6\x16\xd6\x0e\xbd\x02\x1b\x00\x00\x00\x38\x47\x2f\xbe" "\x7a\xf7\xf7\x49\x44\xec\x7f\xfe\x52\x27\x45\xfe\x1c\x40\x80\x43\xfe\x34" "\xea\x06\x00\x67\x69\x62\xd4\x0d\x00\x46\xa6\x30\xea\x06\x00\x23\x53\x3c" "\x75\x0b\x23\x04\x8c\xbb\xe4\x94\xfa\xbe\x93\x77\x7e\x73\xf6\x6d\x01\x00" "\x00\x9e\x8e\xe9\x8f\x1f\xff\xfd\xff\xb9\xbc\xee\xf4\xef\x06\x80\x0f\x32" "\x73\x7d\x00\xe0\xe2\xf1\xeb\x1e\x5c\x5c\x45\x33\x00\xe1\xc2\xfb\x50\x77" "\xf1\x7c\xbf\xfa\xe1\x7e\xff\x4f\x23\x22\xcb\x9e\xa8\x61\x00\x00\xc0\x99" "\x99\xea\xa4\x24\xad\xe4\x57\xe9\x53\x91\xa6\x95\x4a\xc4\x0b\x9d\xd7\x02" "\x14\x93\x95\xb5\x7a\x6d\x26\xbf\x3f\xf8\x5d\xa9\xf8\x7c\xbb\x3c\xdb\xd9" "\x33\x39\x75\xce\x30\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\xd0\x95\x65\x49\x64\x00\x00\x00\xc0\x58\x8b\x48" "\xff\x9c\x74\x9e\xe6\x1f\x31\x5d\x7a\x63\xea\xe8\xf7\x03\xcf\x25\xff\x2a" "\xc5\xfd\xbc\xf0\xd3\x1b\x3f\xbe\xb5\xd8\x6a\x6d\xcf\xb6\xd7\xff\xbd\xd4" "\xa9\x8f\x88\xd6\x4f\xf2\xf5\x6f\x65\x5e\x09\x00\x00\x00\x00\xcf\x80\xee" "\x7d\x7a\xbe\x9c\x1d\x75\x6b\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x18\x37\x0f\x1f\xdc\x5e\x3a\x48\xe7\x19" "\xf7\xaf\x5f\x8c\x88\x72\xaf\xf8\x85\x98\xec\x2c\x27\xa3\x18\x11\x97\xff" "\x91\x44\xe1\xb1\xfd\x92\x88\x98\x38\x83\xf8\xfb\x77\x22\xe2\xa5\x5e\xf1" "\x93\x78\x94\x65\x59\x39\x6f\x45\xaf\xf8\x97\x9e\x72\xfc\x72\xe7\xd4\xf4" "\x8e\x9f\x46\xc4\x95\x33\x88\x0f\x17\xd9\xdd\xf6\xf8\xf3\x7e\xaf\xbf\xbf" "\x34\x5e\xeb\x2c\x7b\xff\xfd\x15\xf2\x34\xac\xfe\xe3\x5f\xfa\xbf\xf1\x6f" "\xa2\xcf\xf8\xf3\xc2\x80\x31\x5e\xbe\xf7\xcb\x6a\xdf\xf8\x77\x22\x5e\x2e" "\xf4\x1e\x7f\x0e\xe2\x27\xdd\xf8\x49\x1c\x89\xff\xfa\x80\xf1\xbf\xf9\x8d" "\xbd\xbd\x7e\x75\xd9\xcf\x22\xa6\x7b\x7e\xfe\x24\x87\x62\x55\x5b\x1b\x5b" "\xd5\xe6\xee\xde\xb5\xb5\x8d\xc5\xd5\xda\x6a\x6d\x73\x6e\x6e\xf6\xed\xf9" "\x77\xe6\x3f\x37\x3f\x53\x5d\x59\xab\xd7\xf2\x7f\x7b\xc6\xf8\xc1\x27\x7e" "\xf5\xe8\xa4\xfe\x5f\xee\x13\xbf\x7c\xb8\xff\xc7\xce\xff\x1b\x03\xf6\xff" "\x3f\xf7\x6e\x3d\xf8\x48\x37\x5b\x3c\x54\x51\xe8\xc6\xbf\xfa\x7a\xef\xcf" "\xdf\x97\xfa\xc4\x4f\xf3\xcf\xbe\x4f\xe5\xf9\x76\xfd\xf4\x41\x7e\xbf\x9b" "\x7f\xdc\x2b\xbf\xf8\xed\x2b\x27\xf5\x7f\xb9\x4f\xff\x27\x4f\xe9\xff\xd5" "\x01\xfb\xff\xe6\xd7\xbe\xf7\xc7\x01\x37\x05\x00\xce\x41\x73\x77\x6f\x7d" "\xb1\x5e\xaf\x6d\x9f\x90\x99\x1c\x60\x9b\x73\xce\xbc\xf7\x6c\x34\x43\xe6" "\xac\x32\xd9\x77\xbb\xff\x1f\x87\x3b\xce\x90\xbb\x1f\xcb\x64\xc3\xec\x5e" "\x88\x91\x9f\xd5\x61\x32\xa3\x1e\x99\x00\x00\x80\xb3\xf6\xff\x8b\xfe\x51" "\xb7\x04\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x2e" "\xae\x27\x7c\x42\xd8\x64\x44\x0c\xbc\xf1\xd1\x98\xfb\xa3\xe9\x2a\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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\x89\xfe\x1b\x00\x00\xff\xff\x9a\x6d\xdb\x0e", 1274); syz_mount_image(/*fs=*/0x20000100, /*dir=*/0x20000200, /*flags=MS_LAZYTIME|MS_RDONLY|MS_NODEV*/ 0x2000005, /*opts=*/0x20001340, /*chdir=*/1, /*size=*/0x4fa, /*img=*/0x20000cc0); } 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; }