// https://syzkaller.appspot.com/bug?id=6513f6cb5cd6b5fc9f37e3bb70d273b94be9c34c // autogenerated by syzkaller (https://github.com/google/syzkaller) #define _GNU_SOURCE #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #ifndef __NR_fsconfig #define __NR_fsconfig 431 #endif #ifndef __NR_fspick #define __NR_fspick 433 #endif #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 void thread_start(void* (*fn)(void*), void* arg) { pthread_t th; pthread_attr_t attr; pthread_attr_init(&attr); pthread_attr_setstacksize(&attr, 128 << 10); int i = 0; for (; i < 100; i++) { if (pthread_create(&th, &attr, fn, arg) == 0) { pthread_attr_destroy(&attr); return; } if (errno == EAGAIN) { usleep(50); continue; } break; } exit(1); } typedef struct { int state; } event_t; static void event_init(event_t* ev) { ev->state = 0; } static void event_reset(event_t* ev) { ev->state = 0; } static void event_set(event_t* ev) { if (ev->state) exit(1); __atomic_store_n(&ev->state, 1, __ATOMIC_RELEASE); syscall(SYS_futex, &ev->state, FUTEX_WAKE | FUTEX_PRIVATE_FLAG, 1000000); } static void event_wait(event_t* ev) { while (!__atomic_load_n(&ev->state, __ATOMIC_ACQUIRE)) syscall(SYS_futex, &ev->state, FUTEX_WAIT | FUTEX_PRIVATE_FLAG, 0, 0); } static int event_isset(event_t* ev) { return __atomic_load_n(&ev->state, __ATOMIC_ACQUIRE); } static int event_timedwait(event_t* ev, uint64_t timeout) { uint64_t start = current_time_ms(); uint64_t now = start; for (;;) { uint64_t remain = timeout - (now - start); struct timespec ts; ts.tv_sec = remain / 1000; ts.tv_nsec = (remain % 1000) * 1000 * 1000; syscall(SYS_futex, &ev->state, FUTEX_WAIT | FUTEX_PRIVATE_FLAG, 0, &ts); if (__atomic_load_n(&ev->state, __ATOMIC_ACQUIRE)) return 1; now = current_time_ms(); if (now - start > timeout) return 0; } } 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, 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 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, loopfd = -1, 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) { memset(loopname, 0, sizeof(loopname)); snprintf(loopname, sizeof(loopname), "/dev/loop%llu", procid); if (setup_loop_device(data, size, loopname, &loopfd) == -1) return -1; 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) { ioctl(loopfd, LOOP_CLR_FD, 0); close(loopfd); } 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")) { } } struct thread_t { int created, call; event_t ready, done; }; static struct thread_t threads[16]; static void execute_call(int call); static int running; static void* thr(void* arg) { struct thread_t* th = (struct thread_t*)arg; for (;;) { event_wait(&th->ready); event_reset(&th->ready); execute_call(th->call); __atomic_fetch_sub(&running, 1, __ATOMIC_RELAXED); event_set(&th->done); } return 0; } static void execute_one(void) { int i, call, thread; for (call = 0; call < 7; call++) { for (thread = 0; thread < (int)(sizeof(threads) / sizeof(threads[0])); thread++) { struct thread_t* th = &threads[thread]; if (!th->created) { th->created = 1; event_init(&th->ready); event_init(&th->done); event_set(&th->done); thread_start(thr, th); } if (!event_isset(&th->done)) continue; event_reset(&th->done); th->call = call; __atomic_fetch_add(&running, 1, __ATOMIC_RELAXED); event_set(&th->ready); event_timedwait(&th->done, 50 + (call == 0 ? 4000 : 0)); break; } } for (i = 0; i < 100 && __atomic_load_n(&running, __ATOMIC_RELAXED); i++) sleep_ms(1); } 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[2] = {0xffffffffffffffff, 0xffffffffffffffff}; void execute_call(int call) { intptr_t res = 0; switch (call) { case 0: memcpy((void*)0x200000c0, "ext4\000", 5); memcpy((void*)0x20000500, "./file0\000", 8); *(uint8_t*)0x200001c0 = 0; sprintf((char*)0x200001c1, "0x%016llx", (long long)0); *(uint8_t*)0x200001d3 = -1; sprintf((char*)0x200001d4, "0x%016llx", (long long)0xee00); memcpy((void*)0x200001e6, ",resgid=", 8); sprintf((char*)0x200001ee, "0x%016llx", (long long)0xee01); *(uint64_t*)0x20000200 = -1; memcpy( (void*)0x20000ec0, "\x78\x9c\xec\xdd\xcf\x6f\x1b\x59\x1d\x00\xf0\xef\x4c\xe2\xd2\x1f\x69" "\x93\x02\x87\x52\x89\x52\xd1\xa2\xb4\x82\xda\x49\x43\xdb\x88\x43\x01" "\x09\xc1\xa9\x12\x50\xee\x25\x24\x4e\x14\xc5\x89\xa3\xd8\x69\x9b\xa8" "\x82\x54\xfc\x01\x48\x08\x01\x12\x27\x4e\x5c\x90\xf8\x03\x90\x50\xff" "\x04\x84\x54\x09\xce\xac\x76\x57\xbb\x5a\xed\xb6\xbb\x87\x3d\xec\xd6" "\x2b\xdb\xe3\x6e\x9b\xb5\x13\x77\x37\x89\x23\xfb\xf3\x91\x5e\xe6\xcd" "\x8c\xed\xef\xf7\xc5\xf2\xf3\xbc\x99\x27\x4f\x00\x03\xeb\x7c\x44\x5c" "\x8e\x88\x67\xb5\x5a\xad\xbe\x1c\xcd\xb6\xa7\x59\x89\xad\x66\xa9\x3f" "\xee\xe9\x93\x07\xb3\xf5\x92\x44\xad\x76\xfb\xdd\x24\x92\x6c\x5b\xeb" "\xb5\x92\x6c\x79\x22\x7b\xda\xd1\x88\xf8\xf9\x4f\x22\x7e\x95\x7c\x36" "\x6e\x65\x63\x73\x69\xa6\x54\x2a\xae\x65\xeb\x85\xea\xf2\x6a\xa1\xb2" "\xb1\x79\x65\x71\x79\x66\xa1\xb8\x50\x5c\x99\x9a\x9a\xbc\x3e\x7d\x63" "\xfa\xda\xf4\xc4\x9e\xb4\x73\x2c\x22\x6e\xfe\xe8\xcd\x3f\xfe\xee\x6f" "\x3f\xbe\xf9\xaf\xef\xdc\x7b\xed\xce\xdb\x97\x7e\x5d\x4f\x6b\x24\xdb" "\xff\x62\x3b\x5e\xd1\x91\x9d\x76\x36\x9b\x9e\x6b\xfc\x2f\x5a\x86\x23" "\x62\xed\x73\x06\x3b\x6c\x86\xb2\xf6\xe4\x7a\x9d\x08\x00\x00\x5d\xa9" "\x1f\xe3\x7f\x39\x22\xbe\xd9\x18\x07\x8c\xc6\x50\xe3\x68\x0e\x00\x00" "\x00\xe8\x27\xb5\xef\x8f\xc4\x47\x49\x44\x0d\x00\x00\x00\xe8\x5b\x69" "\x63\x0e\x6c\x92\xe6\xb3\xb9\x00\x23\x91\xa6\xf9\x7c\x73\x0e\xef\x57" "\xe3\x78\x5a\x2a\x57\xaa\xdf\x9e\x2f\xaf\xaf\xcc\x35\xe7\xca\x8e\x45" "\x2e\x9d\x5f\x2c\x15\x27\xb2\xb9\xc2\x63\x91\x4b\xea\xeb\x93\xd9\x1c" "\xdb\xd6\xfa\xd5\x6d\xeb\x53\x11\x71\x3a\x22\xfe\x30\x7a\xac\xb1\x9e" "\x9f\x2d\x97\xe6\x7a\x7d\xf2\x03\x00\x00\x00\x06\xc4\x89\x6d\xe3\xff" "\x0f\x46\x9b\xe3\x7f\x00\x00\x00\xa0\xcf\x8c\xf5\x3a\x01\x00\x00\x00" "\x60\xdf\x19\xff\x03\x00\x00\x40\xff\x33\xfe\x07\x00\x00\x80\xbe\xf6" "\xd3\x5b\xb7\xea\xa5\xd6\xba\xff\xf5\xdc\xdd\x8d\xf5\xa5\xf2\xdd\x2b" "\x73\xc5\xca\x52\x7e\x79\x7d\x36\x3f\x5b\x5e\x5b\xcd\x2f\x94\xcb\x0b" "\x8d\xdf\xec\x5b\xde\xed\xf5\x4a\xe5\xf2\xea\x77\x63\x65\xfd\x7e\xa1" "\x5a\xac\x54\x0b\x95\x8d\xcd\x3b\xcb\xe5\xf5\x95\xea\x9d\xc5\x97\x6e" "\x81\x0d\x00\x00\x00\x1c\xa0\xd3\xdf\x78\xf4\xbf\x24\x22\xb6\xbe\x77" "\xac\x51\xea\x8e\xf4\x3a\x29\xe0\x40\x0c\x77\xf3\xa0\xff\x9f\x6a\x2e" "\xdf\xd8\xe7\x64\x80\x03\x35\xd4\xeb\x04\x80\x9e\xe9\xea\xfb\x1f\xe8" "\x4b\xb9\x5e\x27\x00\xf4\x5c\xb2\xcb\xfe\x8e\x93\x77\xfe\xbd\xf7\xb9" "\x00\x00\x00\xfb\x63\xfc\x6b\x9d\xaf\xff\xef\x7c\x6e\x60\x2b\x3d\x80" "\xf4\x80\x7d\xe4\x43\x0c\x83\xcb\xf5\x7f\x18\x5c\xae\xff\xc3\xe0\xca" "\x39\x02\x80\x81\xb7\xff\xd7\xff\x6b\xb5\x57\x4a\x08\x00\x00\xd8\x73" "\x23\x8d\x92\xa4\xf9\xec\x5a\xe0\x48\xa4\x69\x3e\x1f\x71\xb2\x71\x5b" "\x80\x5c\x32\xbf\x58\x2a\x4e\x44\xc4\xa9\x88\xf8\xef\x68\xee\x4b\xf5" "\xf5\xc9\xc6\x33\x93\x5d\xc7\x0c\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x40\x53\xad\x96\x44\x0d\x00" "\x00\x00\xe8\x6b\x11\xe9\x5b\x49\x76\xff\xaf\xf1\xd1\x8b\x23\xdb\xcf" "\x0f\x1c\x49\x3e\x1c\x6d\x2c\x23\xe2\xde\x5f\x6e\xff\xe9\xfe\x4c\xb5" "\xba\x36\x59\xdf\xfe\xde\xf3\xed\xd5\x3f\x67\xdb\xaf\xf6\xe2\x0c\x06" "\x00\x00\x00\xb0\x5d\x6b\x9c\xde\x1a\xc7\x03\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\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\x5e\x7a" "\xfa\xe4\xc1\x6c\xab\x1c\x64\xdc\x77\x7e\x18\x11\x63\xed\xe2\x0f\xc7" "\xd1\xc6\xf2\x68\xe4\x22\xe2\xf8\xfb\x49\x0c\xbf\xf0\xbc\x24\x22\x86" "\xf6\x20\xfe\xd6\xc3\x88\x38\xd3\x2e\x7e\x52\x4f\x2b\xc6\xb2\x2c\xda" "\xc5\x3f\xd6\xc3\xf8\x69\x44\x9c\xd8\x83\xf8\x30\xc8\x1e\xd5\xfb\x9f" "\x1f\xb4\xfb\xfc\xa5\x71\xbe\xb1\x6c\xff\xf9\x1b\xce\xca\x17\xd5\xb9" "\xff\x4b\x9f\xf7\x7f\x43\x1d\xfa\x9f\x93\x5d\xc6\x38\xfb\xf8\x1f\x85" "\x8e\xf1\x1f\x46\x9c\x1d\x6e\xdf\xff\xb4\xe2\x27\x1d\xe2\x5f\xe8\x32" "\xfe\x2f\x7f\xb1\xb9\xd9\x69\x5f\xed\xaf\x11\xe3\x6d\xbf\x7f\x92\x97" "\x62\x15\xaa\xcb\xab\x85\xca\xc6\xe6\x95\xc5\xe5\x99\x85\xe2\x42\x71" "\x65\x6a\x6a\xf2\xfa\xf4\x8d\xe9\x6b\xd3\x13\x85\xf9\xc5\x52\x31\xfb" "\xdb\x36\xc6\xef\xbf\xfe\xcf\x67\x3b\xb5\xff\x78\x87\xf8\x63\xbb\xb4" "\xff\x62\x97\xed\xff\xf8\xf1\xfd\x27\x5f\x69\x56\x73\xed\xe2\x5f\xba" "\xd0\xfe\xfd\x3f\xd3\x21\x7e\x9a\x7d\xf7\x7d\x2b\xab\xd7\xf7\x8f\xb7" "\xea\x5b\xcd\xfa\x8b\xce\xfd\xfd\x3f\xe7\x76\x6a\xff\x5c\x87\xf6\xef" "\xf6\xfe\x5f\xea\xb2\xfd\x97\x7f\xf6\xdb\xd7\xbb\x7c\x28\x00\x70\x00" "\x2a\x1b\x9b\x4b\x33\xa5\x52\x71\xad\x6f\x2b\xf5\x51\xfa\x21\x48\x43" "\xe5\x10\x56\x7e\x73\x38\xd2\x38\x94\x95\x5e\xf7\x4c\x00\x00\xc0\x5e" "\xfb\xf4\xa0\xbf\xd7\x99\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\xc0\xe0\x3a\x88\x9f\x13\xdb\x1e\x73\xab\x37\x4d\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\xd8\xd1\x27\x01\x00\x00\xff\xff" "\x7c\x3e\xd8\xcf", 1228); syz_mount_image(0x200000c0, 0x20000500, 4, 0x200001c0, 1, 0x4cc, 0x20000ec0); break; case 1: memcpy((void*)0x20000000, ".\000", 2); res = syscall(__NR_fspick, 0xffffff9c, 0x20000000ul, 0ul); if (res != -1) r[0] = res; break; case 2: memcpy((void*)0x20000080, "ro\000", 3); syscall(__NR_fsconfig, r[0], 0ul, 0x20000080ul, 0ul, 0ul); break; case 3: syscall(__NR_fsconfig, r[0], 7ul, 0ul, 0ul, 0x800000000000000ul); break; case 4: syscall(__NR_fsconfig, r[0], 7ul, 0ul, 0ul, 0ul); break; case 5: memcpy((void*)0x20000040, ".\000", 2); res = syscall(__NR_openat, 0xffffff9c, 0x20000040ul, 0ul, 0ul); if (res != -1) r[1] = res; break; case 6: memcpy((void*)0x20000180, "./bus\000", 6); syscall(__NR_mkdirat, r[1], 0x20000180ul, 0ul); break; } } int main(void) { syscall(__NR_mmap, 0x1ffff000ul, 0x1000ul, 0ul, 0x32ul, -1, 0ul); syscall(__NR_mmap, 0x20000000ul, 0x1000000ul, 7ul, 0x32ul, -1, 0ul); syscall(__NR_mmap, 0x21000000ul, 0x1000ul, 0ul, 0x32ul, -1, 0ul); for (procid = 0; procid < 6; procid++) { if (fork() == 0) { use_temporary_dir(); loop(); } } sleep(1000000); return 0; }