// https://syzkaller.appspot.com/bug?id=b302a30a1f01c29b1d441cc960b287533b85dc2b // 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 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[3] = {0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff}; void execute_one(void) { intptr_t res = 0; memcpy((void*)0x200005c0, "udf\000", 4); memcpy((void*)0x20000600, "./bus\000", 6); memcpy( (void*)0x20000c40, "\x00\x0f\x53\x9c\xf3\xd8\x80\x88\x96\x17\xbb\xd9\x58\xd1\xa5\xb9\xc6\x50" "\x89\x84\xb8\xc7\x4f\x75\x92\xfc\x4d\x39\x0c\x97\x52\x37\x07\x40\xf8\x3f" "\x90\xd5\xdb\x03\x3f\x67\x32\xc6\x22\xb4\x22\xdc\x21\x44\x17\x64\x2d\x25" "\x4a\x13\x1d\x80\x3d\xda\x8f\x1a\xec\x87\xb4\x4e\x80\xa1\x69\xf2\xb9\x1b" "\xb5\x14\xec\x6e\xed\x72\x61\xb9\x06\x00\x44\x04\x10\x48\x43\xf9\x70\x98" "\xbb\x1f\xb8\xf2\xc4\xf8\x12\x65\x12\x8c\xec\x43\x3d\x0b\xfe\x22\x7e\xd9" "\x48\x6e\x94\x4f\x24\x25\x2a\xfc\x1a\x63\xfd\xcf\x68\xc5\x58\x6b\x38\x7f" "\xf2\x40\xeb\x09\xb8\xc3\x62\x8e\x4e\xc9\xb2\x66\x1c\x3c\x27\xf8\x92\x35" "\x48\x1a\xf3\x8d\xcd\xde\xd3\x36\x6b\x3b\x81\x46\x08\x36\x62\xe0\xcf\x00" "\x8c\xdc\xca\x01\xf6\xb0\xca\xe7\x00\x00\x00\x00\x00\x00\x00\x00\x00\xff" "\xfe\x8e\x98\x41\xf2\x8b\xd4\x82\x16\x6d\x9d\x4d\x66\x29\xd8\x20\x51\xc5" "\x88\xe8\x57\x0c\xe6\x83\x4a\xc9\xb5\x47\x95\xa5\xa8\xd1\xa3\xe6\x88\xac" "\x4d\x0a\x7b\x12\xb0\x82\x98\x86\xfa\xc6\x01\x22\x4e\xc8\x64\x03\xc3\x90" "\x58\x9c\x61\x54\x88\xca\x34\xca\xbb\x03\xd8\x9f\x0e\xbe\x54\xe0\xf7\x2b" "\x70\x9d\x52\xcb\x97\x5d\x7d\x4f\xfc\xd5\x8d\x6e\x36\xe4\x32\x03\x01\x21" "\xe2\x64\x54\x62\xc0\x95\x5a\x04\xbe\x8a\xd4\xfc\x2c\x28\x21\x2d\xc4\x8d" "\x6f\xbe\x96\x85\x77\x6e\xe6\x15\xf6\x6b\xc8\x9e\x59\xd7\xfd\x1c\x64\xb0" "\x3d\xa5\xd7\x77\x03\xb0\x5d\x54\xf6\x03\x7d\xaa\x5c\x93\x53\xff\x73\x7b" "\x6b\x61\xee\x6d\x5e\xe9\xc8\xa4\x7f\x53\x5a\xf4\x9b\x64\xa7\xe3\xd0\xf3" "\x91\x94\xb4\xe1\xe5\x1b\x71\x7b\xf7\x81\x99\x68\xc5\xe8\x9d\x94\x8f\x4b" "\xa7\xb3\x34\x07\xf2\xac\x67\xce\x05\x58\x23\x8b\xbf\x3a\x06\xdd\x70\x8f" "\x72\x33\x81\x8a\xef\x45\x51\xf3\xbd\xad\x4b\x93\xc3\xc5\x38\x30\x07\x71" "\xaf\x9f\xc3\xd8\xe2\x8c\x1f\x93\x2f\x7e\x25\xe8\xce\xdc\xe2\x5b\xb7\x6e" "\x18\xde\x8e\x05\x60\xe1\x44\xee\x5c\x4f\xda\xa0\xa1\xb6\x64\xc7\xa2\xe5" "\x3f\xe2\xe7\xe7\x42\xa5\x67\xa3\x13\x31\x2c\x2b\x62\xd5\x28\x38\x7f\x44" "\x56\xc5\x0d\x56\xf9\xec\x85\xdf\x02\xda\x4c\xcc\x44\x7b\x02\xf7\x24\xa1" "\x29\x0d\x73\x28\x01\xa5\xcb\xb4\xc1\x89\x11\x60\x91\x54\x08\xb9\xfc\x2d" "\xd0\xfc\x96\xa4\xe5\xac\x24\x92\xb0\xf8\xe8\xe6\x23\x22\x25\x4a\x47\x75" "\xb6\x42\xe3\x6a\xae\x9a\xd7\xd4\xa8\x9f\xb7\xa7\x11\x63\x07\x2b\x2d\x9b" "\x16\xa9\xcc\x06\xe8\xde\xf1\xd8\xa3\x7b\x5c\x9a\x2b\xe3\xeb\x7f\xb4\x57" "\x1e\x04\x39\x0f", 544); memcpy( (void*)0x20000680, "\x78\x9c\xec\xdd\x4f\x6c\x1c\x57\x1d\x07\xf0\xdf\xf3\xac\x9d\xb5\x49\xd2" "\x6d\x52\xd2\x06\x0a\xb2\x04\x07\xab\x2d\x91\x13\x07\x92\x34\x95\xc0\x34" "\x31\x20\x55\x50\x91\x9a\x03\x07\x84\x89\x9d\xc4\x89\xff\x44\x76\x5a\xd5" "\x11\x82\x1e\x91\xe0\xc2\x0d\xa9\x07\x4e\xbd\x80\xc4\x89\x0b\x48\x5c\x2a" "\x71\xe3\x50\x71\x82\x5b\x85\x80\x0b\x1c\x2c\x2e\x85\x53\xd0\x8c\x67\x76" "\x67\xb7\x6e\xbd\x21\xb6\x17\xbb\x9f\x4f\x14\xbd\x99\xd9\xdf\x4e\xde\xcc" "\x21\xd2\x77\xde\xce\x7b\x01\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\x44\x7c\xf9\xea\xf4\xe4\xd9\x34\xe8\x5e\x00\x00\x00\x00\x7b\xe9" "\xeb\xd7\xbe\x39\x39\x25\xff\x03\x00\x00\xc0\xa1\xf6\x8a\xf1\x7f\x00\x00" "\x00\x00\x00\x00\x00\x38\xe8\x52\x64\xf1\x95\x48\xf1\xe6\x2f\x36\xd3\xd1" "\x62\x7f\x4b\xf3\xa5\xc5\x95\x57\x5f\x9f\xbd\x32\xb3\xfd\xd7\x46\x53\xa4" "\x18\x8a\xac\xa8\xcf\xff\x36\xcf\x9e\x9b\x3a\xff\xf9\x2f\x5c\xb8\x58\xb5" "\x1f\xfe\xfd\xdd\x76\x3a\xbe\x71\xed\x95\xe9\xf1\x17\x57\x97\xef\xae\x2d" "\xac\xaf\x2f\xcc\x8f\xcf\xae\x2c\x5e\x5f\x9d\x5f\xe8\xfb\x0c\x8f\xfa\xfd" "\x5e\xcf\x14\x37\x60\x7c\xf9\xce\xab\xf3\x37\x6e\xac\x8f\x9f\x3b\x33\xd5" "\xf5\xf1\xeb\xad\xbf\x1f\xf9\xd8\xa9\xd6\xe5\x4b\xc3\x2f\x8f\x56\xb5\xb3" "\x57\x66\x66\xae\xd5\x6a\x1a\xc3\xff\xf3\xbf\xfe\x3e\x7e\xe1\x01\x00\x00" "\xf0\xd1\x36\x12\x59\xfc\x23\x52\xfc\x75\xfa\x57\xe9\x58\x44\x0c\xc5\xa3" "\x67\xe1\x1d\x9e\x1d\xec\xb5\xd1\x68\xe5\xf9\xbb\xb8\x88\xd9\x2b\x33\xc5" "\x85\x2c\x2d\xce\xad\xdc\xcb\x3f\x4c\x43\x65\x55\xab\x3b\x13\x8f\x54\x19" "\x79\x1f\xb2\xf8\x23\x69\x45\x9c\xc8\xfb\x3a\x22\xd1\x03\x00\x00\xd0\xbf" "\xe1\xc8\xe2\x3b\x91\xe2\xa7\xbf\xdf\x4c\xc7\x23\x22\xab\x72\xf0\xb3\xc5" "\xc4\x80\x3b\x9f\xa0\xb5\x0f\x9d\xdc\x46\x23\x22\x4e\x46\xc4\x44\x1c\x80" "\xcc\x0e\x00\x00\x00\x03\x76\x24\xb2\xb8\x16\x29\x7e\xb7\xd4\x8a\xc7\xca" "\x5c\x5d\xe4\xff\x2f\x45\x5c\x1e\x74\xe7\x00\x00\x00\x80\x5d\xd1\x88\x2c" "\x36\x22\xc5\x6a\xda\x4c\xad\xe2\xf7\x00\x11\xf1\xcc\xec\x95\x99\xf1\x97" "\xbe\x35\xfe\xb5\x95\x1b\xab\xb5\xda\x34\x54\x8e\xa8\x1f\xf4\xf7\x03\xf6" "\x93\xdf\x26\x00\x00\x00\xf0\x7f\xa0\x19\x59\x1c\x2f\x46\xfc\x37\xd3\xe3" "\x83\xee\x0c\x00\x00\x00\xb0\x27\x46\x23\x8b\x9f\x45\x8a\x37\x6f\xbd\x56" "\xcc\x2b\x17\xc5\xbc\xf4\x8f\x5d\xbe\x74\xf1\xd3\x59\x7d\x86\xb9\x27\x77" "\x38\x4f\x5e\x7b\x26\x22\x3e\xd9\xe7\x3b\xf9\xc3\xe5\x5c\x83\x69\x28\xff" "\xb3\xfb\xd7\x05\x00\x00\x00\x74\x34\x53\x16\x7f\x8b\x14\xef\xfd\xb9\x59" "\xec\x4f\x54\xef\x00\xbc\xfb\xe0\xc1\x83\x41\x77\x0e\x00\x00\x00\xd8\x1d" "\x29\x8b\xff\x44\x8a\x1f\xdd\xdf\x4c\xa9\x67\x5d\xfa\xac\xb6\xbe\x7f\xdb" "\x41\x7f\xf7\x7f\x6f\xfb\x3f\xda\x7c\x71\xf5\xee\xc6\xda\xe2\xcd\x5b\xf7" "\xb6\xfd\x7c\xac\x39\xfd\xbd\xf5\x7b\x6b\x73\xd7\xb7\xff\x78\x6b\xed\xc2" "\xac\x7e\x64\xa7\x75\x0c\x7b\xb5\xca\x35\x1c\x01\x00\x00\xa0\x66\x2c\x65" "\x31\x11\x29\x7e\xbb\xbc\xd9\xce\x8d\xe5\x1a\x00\xc7\xb6\xf6\x3a\x69\xf4" "\xad\xef\x77\x9e\x05\x4c\xf4\xb4\x95\xfa\xf3\x83\x7e\xb6\xfb\x5e\xc5\xfe" "\x21\xe6\xd1\xcb\xfb\x94\x52\x16\x23\x91\xe2\xb3\x6f\x3f\xb5\xf5\x9e\x41" "\x8c\xc9\xc6\x00\x00\x00\x7c\x64\xe5\xf9\xff\x74\xa4\xf8\xc3\xed\x77\x52" "\x95\xf4\xcb\xfc\xdf\xd8\xda\xab\xe5\xff\x17\x3a\xf9\xb9\x99\xba\xdb\xb6" "\x22\xdb\x1f\x2f\xb2\x7d\x7b\x2e\x81\x0b\x63\xcf\x7d\xd0\xf1\xbd\xc8\xff" "\x79\x9f\xf2\xfc\xff\xe3\xfc\x2a\x6e\x3f\x55\x5c\x41\x95\xff\xb3\x9e\xda" "\xbc\xee\x9d\x48\xf1\xc2\xea\xd3\x65\xdd\xd0\x48\x5e\xd7\xa8\x2e\x67\xeb" "\x8c\x37\x16\x97\x16\x26\xf3\xda\xab\x91\xe2\xd7\x4b\x55\x6d\x14\xb5\x47" "\xca\xda\x93\x9d\xda\xb3\x79\xed\xdb\xf9\x79\xe7\xba\x6b\x9b\x65\xed\x13" "\x9d\xda\x73\x79\xed\x83\x48\x71\x6b\x6d\xfb\xda\x8f\x77\x6a\xa7\xf2\xda" "\xf5\x48\xf1\xcb\x9f\x8f\x57\xb5\x63\x79\xed\xd1\xb2\xf6\x54\xa7\xf6\xcc" "\xf5\xd5\xa5\xf9\x7e\x6f\x2f\x00\x00\x00\x87\x5b\x9e\xff\x97\x23\xc5\xbf" "\x4f\x7f\x35\x55\x99\xf7\x03\xf3\x7f\x6d\xfc\xff\x8d\x9e\xb6\xed\x7d\x99" "\xff\xc3\xb7\x77\x2b\xff\xb7\x6a\xc7\xde\x28\x73\xfd\x4f\xca\xfc\xdf\xd8" "\x21\xff\xbf\x1c\x29\x4e\x3f\xfe\x74\x75\xdd\x45\xf6\xae\x1e\x2b\x6c\xad" "\x89\xd0\xc9\xff\xff\x8a\x14\x6b\xdf\xee\xae\x1d\x29\x6b\x4f\x74\x6a\xcf" "\xf6\x7b\x59\x00\x00\x00\xb0\x1f\xf2\xfc\xff\xc3\x48\x31\x3b\xf9\x97\xf6" "\x50\x7a\x99\x6d\xcb\xdd\xed\xf3\xff\x27\x1a\xdd\x6d\xdb\x80\xf2\x7f\x7d" "\xed\xc2\xbc\x4f\xeb\x1b\xf7\xef\xcc\x2d\x2d\x2d\xac\xd9\xb0\x61\xc3\x46" "\x7b\xe3\x21\xfe\x73\x04\x00\x80\x43\x26\xcf\xff\xaf\x45\x8a\xdf\xbc\x35" "\x94\xaa\x71\xec\x32\xff\x97\x3f\x29\xef\xe4\xff\xf7\x7e\xd0\xc9\xff\xcf" "\xf7\xb4\x6d\x03\xca\xff\x27\x6a\xc7\x9e\x2f\xe7\x2c\x1c\x6e\x44\x34\xef" "\x2d\xdf\x1d\x3e\x15\xd1\x5c\xdf\xb8\xff\xb9\xc5\xe5\xb9\x9b\x0b\x37\x17" "\x56\x2e\x9e\x9f\xbc\x74\xe1\xe2\xb9\xf3\xe7\x87\x47\xaa\xb1\xfd\xce\x56" "\xdf\xb7\x0e\x00\x00\x00\x0e\x8c\x3c\xff\x4f\x45\x8a\x3b\xef\xfe\xb1\xfd" "\x1e\x7b\x3f\xe3\xff\x63\x3d\x6d\xdb\x80\xf2\xff\xc9\xfa\x35\x45\x7d\xfc" "\xbf\xef\x5b\x01\x00\x00\x00\x87\x56\x9e\xff\xa7\x23\xc5\xb1\xab\x7f\x6a" "\xcf\x37\xd7\x9d\xff\x3b\x09\x3d\xcf\xff\xd5\xfc\x7f\x13\x9f\xe9\x6e\xdb" "\x4f\x09\x06\x94\xff\x9f\xa8\x1d\x6b\x95\xfd\x1a\x7d\xc8\x7b\x01\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x83\x32\x96\xb2\xf8" "\x67\xa4\xd8\x78\xf6\xb9\x54\x4e\xf8\xdf\xd7\xfc\x7f\xf3\x3d\x6d\xdb\x80" "\xde\xff\x3f\x55\x3b\x36\x1f\xfb\xb3\xfe\x5f\xdf\x37\x19\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" "\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\x0e\x88\xa1\xc8" "\xe2\x76\xa4\xf8\xd4\x93\x9b\xe9\x8b\xf9\x81\xef\x46\x1c\xad\xb7\x00\x00" "\x00\xc0\x81\xf7\xdf\x00\x00\x00\xff\xff\x1c\xef\x41\x6c", 1436); syz_mount_image(0x200005c0, 0x20000600, 0, 0x20000c40, 1, 0x59c, 0x20000680); memcpy((void*)0x20000040, ".\000", 2); res = syscall(__NR_open, 0x20000040ul, 0x180ul, 0ul); if (res != -1) r[0] = res; memcpy((void*)0x200000c0, "./bus\000", 6); syscall(__NR_mknodat, r[0], 0x200000c0ul, 0x6000ul, 0x700); memcpy((void*)0x200000c0, "./bus\000", 6); res = syscall(__NR_open, 0x200000c0ul, 0x14da42ul, 0ul); if (res != -1) r[1] = res; memcpy((void*)0x20000040, "/proc/self/exe\000", 15); res = syscall(__NR_openat, -1, 0x20000040ul, 0ul, 0ul); if (res != -1) r[2] = res; syscall(__NR_sendfile, r[1], r[2], 0ul, 0x80001d00c0d0ul); } 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); use_temporary_dir(); loop(); return 0; }