// https://syzkaller.appspot.com/bug?id=df095becda50fee14ed1dfe1912ef499927e09a7 // 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, "./file1\000", 8); memcpy((void*)0x20000100, "errors=remount-ro", 17); *(uint8_t*)0x20000111 = 0x2c; memcpy((void*)0x20000112, "discard", 7); *(uint8_t*)0x20000119 = 0x2c; memcpy((void*)0x2000011a, "errors=continue", 15); *(uint8_t*)0x20000129 = 0x2c; memcpy((void*)0x2000012a, "uid", 3); *(uint8_t*)0x2000012d = 0x3d; sprintf((char*)0x2000012e, "0x%016llx", (long long)0); *(uint8_t*)0x20000140 = 0x2c; memcpy((void*)0x20000141, "dmask", 5); *(uint8_t*)0x20000146 = 0x3d; sprintf((char*)0x20000147, "%023llo", (long long)0); *(uint8_t*)0x2000015e = 0x2c; memcpy((void*)0x2000015f, "iocharset", 9); *(uint8_t*)0x20000168 = 0x3d; memcpy((void*)0x20000169, "cp865", 5); *(uint8_t*)0x2000016e = 0x2c; memcpy((void*)0x2000016f, "gid", 3); *(uint8_t*)0x20000172 = 0x3d; sprintf((char*)0x20000173, "0x%016llx", (long long)0); *(uint8_t*)0x20000185 = 0x2c; memcpy((void*)0x20000186, "allow_utime", 11); *(uint8_t*)0x20000191 = 0x3d; sprintf((char*)0x20000192, "%023llo", (long long)7); *(uint8_t*)0x200001a9 = 0x2c; memcpy((void*)0x200001aa, "dmask", 5); *(uint8_t*)0x200001af = 0x3d; sprintf((char*)0x200001b0, "%023llo", (long long)5); *(uint8_t*)0x200001c7 = 0x2c; *(uint8_t*)0x200001c8 = 0; memcpy( (void*)0x20002a80, "\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\x90\x64" "\x7d\xc7\xf4\x3c\xdf\xeb\x79\xde\x9e\xf7\xed\x7d\xbe\xe7\xf9\x3e\xc7\xf7" "\xcc\xf9\x3b\x8e\x75\xdc\xeb\x9c\xeb\x3a\xcf\x7b\xad\x39\xe7\x98\xfb\xba" "\xae\x3f\xee\xef\x7a\x8f\x69\xd0\xaa\x61\xdd\x16\x44\x24\xfe\x29\xf0\xe7" "\x97\x14\x21\x44\x8c\x10\x62\x84\x10\xe2\x3a\x21\x44\x20\x84\xa8\x12\x5f" "\x25\x3e\xef\x78\x21\x05\x29\xff\xdc\x9b\xb0\x7f\xad\x87\xd3\xaf\xf6\x0a" "\xd8\xd5\xc4\xfd\xcf\xdf\xb8\xff\xf9\x1b\xf7\x3f\x7f\xe3\xfe\xe7\x6f\xdc" "\xff\xfc\x8d\xfb\x9f\xbf\x71\xff\xf3\x37\xee\x3f\x63\xf9\xd9\xce\x79\x25" "\xae\xe7\x91\x7f\x07\x3f\xff\xcf\xcf\xf8\xf3\xff\xdf\x48\x6e\xc5\xa9\x5f" "\x6d\xae\x78\x63\x9f\x7f\x20\x85\xfb\x9f\xbf\x71\xff\xf3\x37\xee\xff\xbf" "\x2b\xf8\x1f\x9d\xc5\xfd\xcf\xdf\xb8\xff\xf9\x1b\xf7\xff\xdf\x5f\x9d\xff" "\xe6\x18\xf7\x3f\x7f\xe3\xfe\x33\x96\x9f\x5d\xed\xe7\xcf\x3c\xae\xee\xb8" "\xda\x7f\x7f\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\x31\xc6\xf2\x87\x0b\xfe\x0a\x2d\x84\xc8\x7b\x0d\xae\xf6\xa2" "\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xf6\x2f\xe5\x0b\x5e\xed\x15\x30\xc6" "\x18\x63\x8c\x31\xc6\x18\x63\xec\xff\x3e\x10\x52\x28\xa1\x45\x20\x0a\x88" "\x82\x22\x46\x14\x12\xb1\xe2\x1a\x11\x27\xae\x15\x85\xc5\x75\x22\x22\xae" "\x17\xf1\xe2\x06\x51\x44\xdc\x28\x8a\x8a\x62\xa2\xb8\x28\x21\x12\x44\x49" "\x51\x4a\x18\x81\xc2\x0a\x12\xa1\x28\x2d\xca\x88\xa8\xb8\x49\x94\x15\x37" "\x8b\x44\x51\x4e\x94\x17\x15\x84\x13\x15\x45\x92\xb8\x45\x54\x12\xb7\x8a" "\xca\xe2\x36\x51\x45\xdc\x2e\xaa\x8a\x3b\x44\x35\x51\x5d\xd4\x10\x35\xc5" "\x9d\xa2\x96\xb8\x4b\xd4\x16\x75\x44\x5d\x71\xb7\xa8\x27\xea\x8b\x06\xa2" "\xa1\xb8\x47\x34\x12\xf7\x8a\xc6\xe2\x3e\xd1\x44\xdc\x2f\x9a\x8a\x07\x44" "\x33\xf1\xa0\x68\x2e\x1e\x12\x2d\xc4\xc3\xa2\xa5\x78\x44\xb4\x12\x8f\x8a" "\xd6\xe2\x31\xd1\x46\xb4\x15\xed\x44\x7b\xd1\xe1\xff\x28\xff\x25\xd1\x5f" "\xbc\x2c\x06\x88\x81\x22\x45\x0c\x12\x83\xc5\x2b\x62\x88\x18\x2a\x86\x89" "\xe1\x62\x84\x78\x55\x8c\x14\xaf\x89\x51\xe2\x75\x91\x2a\x46\x8b\x31\xe2" "\x0d\x31\x56\xbc\x29\xc6\x89\xb7\xc4\x78\x31\x41\x4c\x14\x6f\x8b\x49\x62" "\xb2\x98\x22\xa6\x8a\x69\x62\xba\x48\x13\xef\x88\x19\xe2\x5d\x31\x53\xbc" "\x27\x66\x89\xd9\x62\x8e\x98\x2b\xd2\xc5\x3c\x31\x5f\xbc\x2f\x16\x88\x85" "\x62\x91\xf8\x40\x2c\x16\x1f\x8a\x25\x62\xa9\x58\x26\x96\x8b\x0c\xf1\x91" "\xc8\x14\x2b\x44\x96\xf8\x58\xac\x14\x9f\x88\x6c\xb1\x4a\xac\x16\x6b\xc4" "\x5a\xb1\x4e\xac\x17\x1b\xc4\x46\xb1\x49\x6c\x16\x5b\xc4\x56\xb1\x4d\x6c" "\x17\x3b\xc4\x4e\xf1\xa9\xd8\x25\x76\x8b\x3d\x62\xaf\xd8\x27\xf6\x8b\x03" "\xe2\x33\x71\x50\x7c\x2e\x0e\x89\x2f\x44\x8e\xf8\xf2\x1f\xcc\x3f\xff\x9f" "\xf2\xfb\x80\x00\x01\x12\x24\x68\xd0\x50\x00\x0a\x40\x0c\xc4\x40\x2c\xc4" "\x42\x1c\xc4\x41\x61\x28\x0c\x11\x88\x40\x3c\xc4\x43\x11\x28\x02\x45\xa1" "\x28\x14\x87\xe2\x90\x00\x09\x50\x0a\x4a\x01\x02\x02\x01\x41\x69\x28\x0d" "\x51\x88\x42\x59\x28\x0b\x89\x90\x08\xe5\xa1\x3c\x38\x70\x90\x04\x49\x50" "\x09\x6e\x85\xca\x50\x19\xaa\x40\x15\xa8\x0a\x55\xa1\x1a\x54\x87\xea\x50" "\x13\x6a\x42\x2d\xa8\x05\xb5\xa1\x36\xd4\x85\xba\x50\x0f\xea\x41\x03\x68" "\x00\xf7\xc0\x3d\x70\x2f\x34\x86\xc6\xd0\x04\x9a\x40\x53\x68\x0a\xcd\xa0" "\x19\x34\x87\xe6\xd0\x02\x5a\x40\x4b\x68\x09\xad\xa0\x15\xb4\x86\xd6\xd0" "\x06\xda\x40\x3b\x68\x07\x1d\xa0\x03\x74\x84\x8e\xd0\x09\x3a\x41\x17\xe8" "\x02\x5d\xa1\x2b\x74\x83\x6e\x90\x0c\xc9\xd0\x1d\xba\x43\x0f\xe8\x01\x3d" "\xa1\x27\xf4\x82\x5e\xd0\x1b\x7a\x43\x1f\xe8\x0b\x7d\xe1\x25\x78\x09\x5e" "\x86\x97\x61\x20\xd4\x93\x83\x60\x30\x0c\x86\x21\x30\x04\x86\xc1\x70\x18" "\x0e\xaf\xc2\x48\x78\x0d\x5e\x83\xd7\x21\x15\x46\xc3\x18\x78\x03\xde\x80" "\x37\x61\x1c\x9c\x83\xf1\x30\x01\x26\xc2\x44\xa8\x25\x27\xc3\x14\x98\x0a" "\x24\xa7\x43\x1a\xa4\xc1\x0c\x98\x01\x33\x61\x26\xcc\x82\xd9\x30\x1b\xe6" "\x42\x3a\xcc\x83\xf9\x30\x1f\x16\xc0\x42\x58\x08\x1f\xc0\x62\xf8\x10\x3e" "\x84\xa5\xb0\x14\x96\x43\x06\x64\x40\x26\xac\x80\x2c\xc8\x82\x95\x70\x1e" "\xb2\x61\x15\xac\x86\x35\xb0\x16\xd6\xc1\x5a\xd8\x00\x1b\x61\x03\x6c\x86" "\x2d\xb0\x19\xb6\xc1\x36\xd8\x01\x3b\xe0\x53\xf8\x14\x76\xc3\x6e\xd8\x0b" "\x7b\x61\x3f\xec\x87\xcf\xe0\x33\xf8\x1c\x3e\x87\x54\xc8\x81\x1c\x38\x0c" "\x87\xe1\x08\x1c\x81\xa3\x70\x14\x72\x21\x17\x8e\xc1\x31\x38\x0e\xc7\xe1" "\x04\x9c\x80\x93\x70\x12\x4e\xc1\x69\x38\x03\xa7\xe1\x2c\x9c\x85\x73\x70" "\x1e\x2e\xc0\x05\xb8\x08\x17\xe1\x12\xbc\x90\xf0\x4d\xcb\xfd\xe5\x36\xa5" "\x0a\x99\x47\x4b\x2d\x0b\xc8\x02\x32\x46\xc6\xc8\x58\x19\x2b\xe3\x64\x9c" "\x2c\x2c\x0b\xcb\x88\x8c\xc8\x78\x19\x2f\x8b\xc8\x22\xb2\xa8\x2c\x2a\x8b" "\xcb\xe2\x32\x41\x26\xc8\x52\xb2\x94\x44\x89\x92\x64\x28\x4b\xcb\xd2\x32" "\x2a\xa3\xb2\xac\x2c\x2b\x13\x65\xa2\x2c\x2f\xcb\x4b\x27\x9d\x4c\x92\x49" "\xb2\x92\xac\x24\x2b\xcb\xca\xb2\x8a\xbc\x5d\x56\x95\x77\xc8\x6a\xb2\xba" "\xec\xec\x6a\xca\x9a\xb2\x96\xec\xe2\x6a\xcb\x3a\xb2\xae\xac\x2b\xeb\xc9" "\xfa\xb2\x81\x6c\x28\x1b\xca\x46\xb2\x91\x6c\x2c\x1b\xcb\x26\xb2\x89\x6c" "\x2a\x9b\xca\x66\xf2\x41\xd9\x5c\x0e\x82\x61\xf0\xb0\xcc\xeb\x4c\x2b\x39" "\x1a\x5a\xcb\x31\xd0\x46\xb6\x95\xed\x64\x7b\xf9\x26\x3c\x2e\x3b\xca\x71" "\xd0\x49\x76\x96\x5d\xe4\x93\x72\x02\x8c\x87\x6e\xb2\xa3\x4b\x96\xcf\xc8" "\xee\x72\x0a\xf4\x90\xcf\xc9\xa9\xf0\xbc\xec\x25\xa7\x43\x6f\xf9\xa2\xec" "\x23\xfb\xca\x7e\xf2\x25\xd9\x5f\x76\x72\x03\xe4\x40\x39\x0b\x06\xc9\xc1" "\x72\x2e\x0c\x91\x43\xe5\x30\x39\x5c\x2e\x80\xfa\x32\xaf\x63\x0d\xe4\xeb" "\x32\x55\x8e\x96\x63\xe4\x1b\x72\x39\xbc\x29\xc7\xc9\xb7\xe4\x78\x39\x41" "\x4e\x94\x6f\xcb\x49\x72\xb2\x9c\x22\xa7\xca\x69\x72\xba\x4c\x93\xef\xc8" "\x19\xf2\x5d\x39\x53\xbe\x27\x67\xc9\xd9\x72\x8e\x9c\x2b\xd3\xe5\x3c\x39" "\x5f\xbe\x2f\x17\xc8\x85\x72\x91\xfc\x40\x2e\x96\x1f\xca\x25\x72\xa9\x5c" "\x26\x97\xcb\x0c\xf9\x91\xcc\x94\x2b\x64\x96\xfc\x58\xae\x94\x9f\xc8\x6c" "\xb9\x4a\xae\x96\x6b\xe4\x5a\xb9\x4e\xae\x97\x1b\xe4\x46\xb9\x49\x6e\x96" "\x5b\xe4\x56\xb9\x4d\x6e\x97\x3b\xe4\x4e\xf9\xa9\xdc\x25\x77\xcb\x3d\x72" "\xaf\xdc\x27\xf7\xcb\x03\xf2\x33\x79\x50\x7e\x2e\x0f\xc9\x2f\x64\x8e\xfc" "\x52\x1e\x96\x7f\x92\x47\xe4\x57\xf2\xa8\xfc\x5a\xe6\xca\x6f\xe4\x31\xf9" "\xad\x3c\x2e\xbf\x93\x27\xe4\xf7\xf2\xa4\xfc\x41\x9e\x92\xa7\xe5\x19\xf9" "\xa3\x3c\x2b\x7f\x92\xe7\xe4\x79\x79\x41\xfe\x2c\x2f\xca\x5f\xe4\x25\xf9" "\xab\xbc\x2c\xbd\x14\x0a\x94\x54\x4a\x69\x15\xa8\x02\xaa\xa0\x8a\x51\x85" "\x54\xac\xba\x46\xc5\xa9\x6b\x55\x61\x75\x9d\x8a\xa8\xeb\x55\xbc\xba\x41" "\x15\x51\x37\xaa\xa2\xaa\x98\x2a\xae\x4a\xa8\x04\x55\x52\x95\x52\x46\xa1" "\xb2\x8a\x54\xa8\x4a\xab\x32\x2a\xaa\x6e\x52\x65\xd5\xcd\x2a\x51\x95\x53" "\xe5\x55\x05\xe5\x54\x45\x95\xa4\x6e\x51\x95\xd4\xad\xaa\xb2\xba\x4d\x55" "\x51\xb7\xab\xaa\xea\x0e\x55\x4d\x55\x57\x35\x54\x4d\x75\xa7\xaa\xa5\xee" "\x52\xb5\x55\x1d\x55\x57\xdd\xad\xea\xa9\xfa\xaa\x81\x6a\xa8\xee\x51\x8d" "\xd4\xbd\xaa\xb1\xba\x4f\x35\x51\xf7\xab\xa6\xea\x01\xd5\x4c\x3d\xa8\x9a" "\xab\x87\x54\x0b\xf5\xb0\x6a\xa9\x1e\x51\xad\xd4\xa3\xaa\xb5\x7a\x4c\xb5" "\x51\x6d\x55\x3b\xd5\x5e\x75\x50\x8f\xab\x8e\xea\x09\xd5\x49\x75\x56\x5d" "\xd4\x93\xaa\xab\x7a\x4a\x75\x53\x4f\xab\x64\xf5\x8c\xea\xae\x9e\x55\x3d" "\xd4\x73\xaa\xa7\x7a\x5e\xf5\x52\x2f\xa8\xde\xea\x45\xd5\x47\xf5\x55\xfd" 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"\x72\x62\x66\xd5\xf0\x42\xfc\x7f\x53\x7f\xa9\x10\x89\x65\xae\xe4\x14\x12" "\x57\xe2\x2b\xf5\x2b\xff\x17\xf5\x8b\x75\xfc\x83\xf5\x17\xfa\x2a\x4d\x88" "\x4e\x7f\x95\x13\x27\xae\xc4\x57\xea\x27\x89\x27\xc4\xb3\x22\xf9\x6f\xce" "\x64\x8c\x31\xc6\x18\x63\x8c\x31\xc6\xfe\x6c\xa8\xac\xd1\xf3\x8f\xee\x9f" "\xf3\xee\xcf\x13\xf4\x95\x9c\x82\xe2\x4a\xfc\x47\xf7\xe7\x8c\x31\xc6\x18" "\x63\x8c\x31\xc6\x18\xbb\xfa\x9e\xef\xdb\xef\xe9\xc7\x93\x93\x3b\xf7\xe4" "\x09\x4f\x78\xc2\x93\xff\x98\x5c\xed\xff\x4c\x8c\x31\xc6\x18\x63\x8c\xb1" "\x7f\xb5\x2b\x17\xfd\x57\x7b\x25\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\x58\xfe\xf5\xff\xe2\xeb\xc4\xae" "\xf6\x1e\x19\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\xb1\xab\xed\x7f" "\x05\x00\x00\xff\xff\xd0\xa0\x3b\x6f", 5373); syz_mount_image(/*fs=*/0x200000c0, /*dir=*/0x20001540, /*flags=MS_NOEXEC|MS_NODEV|0x20000000*/ 0x2000000c, /*opts=*/0x20000100, /*chdir=*/1, /*size=*/0x14fd, /*img=*/0x20002a80); memcpy((void*)0x20000040, "./bus\000", 6); syscall(__NR_creat, /*file=*/0x20000040ul, /*mode=*/0ul); memcpy((void*)0x20000380, "/dev/loop", 9); *(uint8_t*)0x20000389 = 0x30; *(uint8_t*)0x2000038a = 0; memcpy((void*)0x20000140, "./bus\000", 6); syscall(__NR_mount, /*src=*/0x20000380ul, /*dst=*/0x20000140ul, /*type=*/0ul, /*flags=MS_BIND*/ 0x1000ul, /*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; }