// https://syzkaller.appspot.com/bug?id=8044da1bfbc0e081a6fffab422931f0cea31d3a6 // 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, 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 int inject_fault(int nth) { int fd; fd = open("/proc/thread-self/fail-nth", O_RDWR); if (fd == -1) exit(1); char buf[16]; sprintf(buf, "%d", nth); if (write(fd, buf, strlen(buf)) != (ssize_t)strlen(buf)) exit(1); return fd; } 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 setup_fault() { static struct { const char* file; const char* val; bool fatal; } files[] = { {"/sys/kernel/debug/failslab/ignore-gfp-wait", "N", true}, {"/sys/kernel/debug/fail_futex/ignore-private", "N", false}, {"/sys/kernel/debug/fail_page_alloc/ignore-gfp-highmem", "N", false}, {"/sys/kernel/debug/fail_page_alloc/ignore-gfp-wait", "N", false}, {"/sys/kernel/debug/fail_page_alloc/min-order", "0", false}, }; unsigned i; for (i = 0; i < sizeof(files) / sizeof(files[0]); i++) { if (!write_file(files[i].file, files[i].val)) { if (files[i].fatal) exit(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[1] = {0xffffffffffffffff}; void execute_one(void) { intptr_t res = 0; memcpy((void*)0x20000140, "hfs\000", 4); memcpy((void*)0x20000100, "./bus\000", 6); memcpy( (void*)0x200003c0, "\x78\x9c\xec\xdd\x4f\x6b\x13\x4f\x1c\xc7\xf1\xcf\x6c\xf2\xfb\x19\xb5\xd4" "\xed\x1f\x11\xc4\x53\xb5\xe0\x49\xda\x7a\x11\x2f\x8a\xe4\x41\x78\x12\xb5" "\x89\x50\x1a\x2a\xd8\x0a\xb6\xa7\xe8\x59\x7c\x00\xde\x7d\x0a\x3e\x08\x4f" "\xe2\x13\xa8\x27\x4f\x3e\x80\xdc\x56\x66\x76\xb6\xd9\xa6\xbb\xd9\x18\x92" "\x4c\x1b\xdf\x2f\x48\xd8\x26\xf3\x9d\xfd\x4e\x77\xb6\x33\xdf\x40\x89\x00" "\xfc\xb3\x9e\x34\x8f\xbf\xdc\xff\x65\x1f\x46\xaa\xa9\x26\xe9\xa1\x14\x49" "\x6a\x48\x75\x49\xd7\x75\xa3\xf1\x76\xef\x60\xe7\xa0\xd3\x6e\x0d\xeb\xa8" "\xe6\x22\xec\xc3\x28\x8d\x34\x67\xda\x6c\xef\xb5\x8b\x42\x6d\x9c\x8b\xb0" "\x1e\x4b\xb1\xfd\xa9\xae\x85\x93\xd7\x30\x35\x8d\x24\x49\x7e\x86\x4e\x02" "\xc1\xb9\xbb\xbf\x40\x24\x5d\xf2\x77\xa7\x7b\xbf\x31\xf3\xcc\xa6\xa3\x1b" "\x3a\x81\xc0\x4c\x4f\x3d\xbd\xd3\x62\xe8\x3c\x00\x00\x61\xf9\xf5\x3f\xf2" "\xeb\xfc\x82\xdf\xbf\x47\x91\xb4\xee\x97\xfd\xb9\x5a\xff\x7b\xa1\x13\x08" "\x2c\xb7\xfe\xd7\xa5\x63\x25\xc6\x5e\xdf\x6b\xee\xad\x7e\xbd\xe7\x4a\x38" "\xbb\xf7\x8b\xb2\x2a\x71\x9c\x73\xfd\xaf\x74\x66\x9d\xda\x60\x9a\xaa\xaa" "\xd2\xe5\x12\x5d\x7e\xb5\xd3\x69\xdf\xdb\x7e\xdd\x69\x45\xfa\xa0\x47\x5e" "\xae\xd9\xaa\x7b\x6e\xa5\x53\x37\x93\xcf\xf6\xfd\xd9\xae\xd7\x0a\x6a\xd3" "\x21\xc6\x1f\xfb\x55\x37\x86\xff\xec\x18\xb6\x4a\xf2\x5f\x99\xec\x19\xab" "\x99\x6f\xe6\xbb\x79\x66\x62\x7d\x56\xeb\x64\xff\x57\x4f\x8c\xbd\x4c\xee" "\x4a\xc5\x03\x57\x2a\xcd\x7f\xa3\xbc\x47\x37\xca\x38\x6d\x55\x32\xca\x25" "\x77\x92\x9b\xfe\x0c\x5e\xc5\x28\x1b\xc5\x15\x89\xb2\x19\xb5\xa4\xd3\x1f" "\x10\xc4\x55\x79\xba\xa8\xe5\x81\xa8\x74\x74\x9b\x15\x51\x2b\x85\x51\x5b" "\x15\x51\xab\x83\x51\xfd\xd9\x5c\x1e\x39\x6d\xe6\x93\x79\x6a\xd6\xf4\x5b" "\x5f\xd5\xcc\xed\xff\x23\xfb\xdb\x5e\xd7\x28\x77\xa6\x6d\xe3\x5a\xfa\x99" "\x31\x74\x3c\x75\xd7\x32\xce\xbf\xd4\xbd\x55\xd8\x32\xfa\xfb\xb1\x60\x6c" "\x1f\xf5\x52\x0f\xb4\xb8\x7f\x78\xb4\xfb\xa2\xd3\x69\xbf\xd9\x3f\x3c\xea" "\x66\x07\xbb\x1c\xcc\xf7\x41\x36\x09\xce\x4b\x3e\x1c\x4c\xe8\xc0\xee\xcf" "\x27\xd4\x61\xd8\x3f\x4f\x98\x8d\xfe\x45\x0f\x9d\x09\x02\xb1\xfb\x2e\x93" "\xd6\x7f\xb9\x7a\x65\xc3\x95\x48\xf6\x29\x1e\xb2\x4f\x4f\xaa\x3a\xcf\xf5" "\xb8\x59\x52\x1b\x2c\xbb\xe7\x2b\xe5\x15\x5c\x61\xb7\xa5\x15\xdc\xa8\x35" "\xd7\xed\xbb\xd2\x9d\xd1\xcf\x18\xfb\x3c\xe7\x84\x69\xea\x87\x9e\xf3\xf9" "\x3f\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xc0\x45\x33" "\x8b\x7f\x4b\x08\x3d\x46\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x2e\x3a\xa3\x73\xf6\xfd\xbf\xe2\xfb\x7f\x81\x59\xf9" "\x13\x00\x00\xff\xff\x96\x72\x7d\xdc", 603); syz_mount_image(0x20000140, 0x20000100, 0x4000, 0x20000000, 2, 0x25b, 0x200003c0); syscall(__NR_openat, 0xffffff9c, 0ul, 0x141842ul, 0ul); memcpy((void*)0x20000040, "./file1\000", 8); res = syscall(__NR_openat, 0xffffff9c, 0x20000040ul, 0x141842ul, 0ul); if (res != -1) r[0] = res; memcpy( (void*)0x20004200, "\x1c\xef\xc4\xc4\x19\xfd\xb8\xd6\x6b\x12\xa7\xbb\xf3\x71\xd0\x56\xad\x6f" "\x01\xe9\x76\x2d\x70\x40\x1d\x1c\x9d\x33\x1b\x48\xb9\x25\xe9\xe6\xa7\x75" "\x9a\xbb\x20\x6b\x9b\x18\xbf\xc3\xf3\xf9\x6a\xdb\x2b\x37\xc2\x12\x1e\xf2" "\x1e\x91\xba\xc7\x68\xdd\x33\xdf\x29\x64\x9d\xa1\xd8\x2e\x82\x6a\x55\xc4" "\xd6\x20\xb6\xf5\x10\xda\xee\x26\x00\x4b\x74\x1c\x95\x1d\x52\x8d\x80\x6e" "\xfb\xe0\x0c\x43\x9f\x2d\xf4\x6d\x3a\xdf\x8b\xe2\x4e\x28\x0b\x94\x8a\x49" "\xaf\xd1\x7d\x56\x43\x7c\x6e\x75\x2d\x84\xf9\x9b\xf3\x7a\x88\xf0\xc5\x44" "\x88\xdd\x13\xb8\x48\xf2\x38\x1d\x7d\x2a\xec\xb6\x8e\xd1\x67\x62\xe4\xa3" "\xc1\xa8\x47\x56\x53\x64\xb9\xf1\xaf\x92\xc9\xc8\x9e\x06\xe8\x9f\xe6\x17" "\x9c\xb7\x07\x8a\x74\x2c\xb9\x68\xa9\xf0\x9c\xc6\x90\xdc\x47\x3d\xf2\x9d" "\x6a\xd9\xaf\x58\x79\xe9\xa2\x61\x8c\x63\x70\x21\x17\xa3\xa6\x3d\x3a\x42" "\x36\xba\xee\x86\xf5\xf4\x52\xe9\x66\x3a\x79\x53\x06\xda\xbb\x97\xdb\x88" "\x43\x48\xab\x43\x7b\xdc\x13\xb7\xcf\xb0\x3e\xff\x1c\xf2\x16\xf0\x9d\x21" "\x07\x8e\x18\x52\xfc\x7c\x96\x41\x3d\x9d\x65\xc5\x2c\xe9\xba\xa6\xbc\x26" "\xde\x7f\x02\x87\x38\xa1\x71\x20\xde\x30\xa4\x33\xc9\xc3\xc8\xe2\x76\xf3" "\xae\x5e\x18\xa1\xf9\x57\x67\xff\xfe\x8e\x98\xb0\xc3\xf1\x34\xf1\x22\x63" "\xb0\x1c\x36\x86\x6d\x4e\x0e\x85\x6c\xc1\x4e\xcf\x50\x27\x9a\xdb\x94\x38" "\xc6\x21\x9c\x49\xca\xe9\x73\xd8\xe7\xfa\xf3\x3d\xcd\xeb\x96\xd7\xef\x7e" "\x89\xae\x82\x8c\xb9\x1d\xf2\x29\x39\x30\x7b\xb1\xf7\xfb\x73\x92\xe1\xe2" "\x4f\x6b\x63\x16\x6b\x89\x93\x7c\x00\xeb\x8f\xea\x02\x45\xcd\x93\xe4\xaa" "\x80\x31\x60\xbd\x71\xc1\xa0\xbb\xb6\xb8\x28\x5d\x8a\xb6\x54\x48\x5a\xb9" "\x85\xf1\xdd\x2e\xb9\xab\xf5\x31\x31\xa9\x68\x0d\xca\xfe\x40\x00\xd3\xea" "\x52\x8d\xd5\x2a\xba\x3e\x4f\xf6\xa3\x88\x3e\xc6\x14\x25\x3d\x56\x27\xbd" "\x91\x52\x2d\x88\x11\x28\x32\x8e\xd1\xe0\x09\x07\xfa\x6c\xc4\x8c\xec\x52" "\x68\xbb\xed\xd8\x5e\xc0\x2d\x8b\xac\x31\x83\x46\x0d\xd1\xa2\x7f\xbc\x06" "\xb5\x64\x24\x73\xa4\x1a\x6c\xbf\xb0\x7f\x53\xde\xab\x24\x73\xb3\x7c\x3d" "\x10\xa1\x25\xd6\x10\xf1\xb9\xea\x5c\x83\xe7\xd4\x62\x04\x8f\x25\xfc\x1e" "\x79\x29\x5e\xef\xf7\x50\xa2\x3f\xaf\x5d\x54\x27\x58\xc4\x21\xbb\x06\x73" "\x50\x4c\x9d\xba\xe2\x95\x9f\x77", 512); inject_fault(9); syscall(__NR_write, r[0], 0x20004200ul, 0xffe00ul); memcpy((void*)0x20000140, "hfs\000", 4); memcpy((void*)0x20000100, "./bus\000", 6); memcpy( (void*)0x200003c0, "\x78\x9c\xec\xdd\x4f\x6b\x13\x4f\x1c\xc7\xf1\xcf\x6c\xf2\xfb\x19\xb5\xd4" "\xed\x1f\x11\xc4\x53\xb5\xe0\x49\xda\x7a\x11\x2f\x8a\xe4\x41\x78\x12\xb5" "\x89\x50\x1a\x2a\xd8\x0a\xb6\xa7\xe8\x59\x7c\x00\xde\x7d\x0a\x3e\x08\x4f" "\xe2\x13\xa8\x27\x4f\x3e\x80\xdc\x56\x66\x76\xb6\xd9\xa6\xbb\xd9\x18\x92" "\x4c\x1b\xdf\x2f\x48\xd8\x26\xf3\x9d\xfd\x4e\x77\xb6\x33\xdf\x40\x89\x00" "\xfc\xb3\x9e\x34\x8f\xbf\xdc\xff\x65\x1f\x46\xaa\xa9\x26\xe9\xa1\x14\x49" "\x6a\x48\x75\x49\xd7\x75\xa3\xf1\x76\xef\x60\xe7\xa0\xd3\x6e\x0d\xeb\xa8" "\xe6\x22\xec\xc3\x28\x8d\x34\x67\xda\x6c\xef\xb5\x8b\x42\x6d\x9c\x8b\xb0" "\x1e\x4b\xb1\xfd\xa9\xae\x85\x93\xd7\x30\x35\x8d\x24\x49\x7e\x86\x4e\x02" "\xc1\xb9\xbb\xbf\x40\x24\x5d\xf2\x77\xa7\x7b\xbf\x31\xf3\xcc\xa6\xa3\x1b" "\x3a\x81\xc0\x4c\x4f\x3d\xbd\xd3\x62\xe8\x3c\x00\x00\x61\xf9\xf5\x3f\xf2" "\xeb\xfc\x82\xdf\xbf\x47\x91\xb4\xee\x97\xfd\xb9\x5a\xff\x7b\xa1\x13\x08" "\x2c\xb7\xfe\xd7\xa5\x63\x25\xc6\x5e\xdf\x6b\xee\xad\x7e\xbd\xe7\x4a\x38" "\xbb\xf7\x8b\xb2\x2a\x71\x9c\x73\xfd\xaf\x74\x66\x9d\xda\x60\x9a\xaa\xaa" "\xd2\xe5\x12\x5d\x7e\xb5\xd3\x69\xdf\xdb\x7e\xdd\x69\x45\xfa\xa0\x47\x5e" "\xae\xd9\xaa\x7b\x6e\xa5\x53\x37\x93\xcf\xf6\xfd\xd9\xae\xd7\x0a\x6a\xd3" "\x21\xc6\x1f\xfb\x55\x37\x86\xff\xec\x18\xb6\x4a\xf2\x5f\x99\xec\x19\xab" "\x99\x6f\xe6\xbb\x79\x66\x62\x7d\x56\xeb\x64\xff\x57\x4f\x8c\xbd\x4c\xee" "\x4a\xc5\x03\x57\x2a\xcd\x7f\xa3\xbc\x47\x37\xca\x38\x6d\x55\x32\xca\x25" "\x77\x92\x9b\xfe\x0c\x5e\xc5\x28\x1b\xc5\x15\x89\xb2\x19\xb5\xa4\xd3\x1f" "\x10\xc4\x55\x79\xba\xa8\xe5\x81\xa8\x74\x74\x9b\x15\x51\x2b\x85\x51\x5b" "\x15\x51\xab\x83\x51\xfd\xd9\x5c\x1e\x39\x6d\xe6\x93\x79\x6a\xd6\xf4\x5b" "\x5f\xd5\xcc\xed\xff\x23\xfb\xdb\x5e\xd7\x28\x77\xa6\x6d\xe3\x5a\xfa\x99" "\x31\x74\x3c\x75\xd7\x32\xce\xbf\xd4\xbd\x55\xd8\x32\xfa\xfb\xb1\x60\x6c" "\x1f\xf5\x52\x0f\xb4\xb8\x7f\x78\xb4\xfb\xa2\xd3\x69\xbf\xd9\x3f\x3c\xea" "\x66\x07\xbb\x1c\xcc\xf7\x41\x36\x09\xce\x4b\x3e\x1c\x4c\xe8\xc0\xee\xcf" "\x27\xd4\x61\xd8\x3f\x4f\x98\x8d\xfe\x45\x0f\x9d\x09\x02\xb1\xfb\x2e\x93" "\xd6\x7f\xb9\x7a\x65\xc3\x95\x48\xf6\x29\x1e\xb2\x4f\x4f\xaa\x3a\xcf\xf5" "\xb8\x59\x52\x1b\x2c\xbb\xe7\x2b\xe5\x15\x5c\x61\xb7\xa5\x15\xdc\xa8\x35" "\xd7\xed\xbb\xd2\x9d\xd1\xcf\x18\xfb\x3c\xe7\x84\x69\xea\x87\x9e\xf3\xf9" "\x3f\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xc0\x45\x33" "\x8b\x7f\x4b\x08\x3d\x46\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x2e\x3a\xa3\x73\xf6\xfd\xbf\xe2\xfb\x7f\x81\x59\xf9" "\x13\x00\x00\xff\xff\x96\x72\x7d\xdc", 603); syz_mount_image(0x20000140, 0x20000100, 0x4000, 0x20000000, 2, 0x25b, 0x200003c0); syscall(__NR_write, -1, 0ul, 0ul); syscall(__NR_write, -1, 0ul, 0ul); } 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); setup_fault(); for (procid = 0; procid < 6; procid++) { if (fork() == 0) { use_temporary_dir(); loop(); } } sleep(1000000); return 0; }