// https://syzkaller.appspot.com/bug?id=fcf0b68b63113416159649a5145d26759b9865ba // 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; const int umount_flags = MNT_FORCE | UMOUNT_NOFOLLOW; retry: 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 (;;) { sleep_ms(10); if (waitpid(-1, &status, WNOHANG | WAIT_FLAGS) == pid) break; if (current_time_ms() - start < 5000) continue; kill_and_wait(pid, &status); break; } remove_dir(cwdbuf); } } void execute_one(void) { if (write(1, "executing program\n", sizeof("executing program\n") - 1)) { } memcpy((void*)0x20006c00, "exfat\000", 6); memcpy((void*)0x20001b40, "./file0\000", 8); memcpy((void*)0x20001b80, "umask=00000000000000000000011,namecase=1,errors=continue,allow_utime=" "00000000000000000000002,gid=", 97); sprintf((char*)0x20001be1, "0x%016llx", (long long)0); memcpy((void*)0x20001bf3, ",discard,umask=00000000000000000005676,keep_last_dots,gid=", 58); sprintf((char*)0x20001c2d, "0x%016llx", (long long)0xee00); memcpy((void*)0x20001c3f, ",iocharset=cp865,dmask=00000000000000000000001,discard,uid=", 59); sprintf((char*)0x20001c7a, "0x%016llx", (long long)0xee00); memcpy((void*)0x20001c8c, "\x96\x90\x43\xc7\xff\x17\x74\xeb\xb8\x58\x2e\x00", 12); memcpy( (void*)0x20000580, "\x78\x9c\xec\xdc\x0b\x98\xce\x55\xd7\x30\xf0\xbd\xf6\xde\x7f\xc6\x34\xe9" "\x6e\x92\xc3\xb0\xd7\x5e\x7f\xee\x34\xd8\x26\x49\x72\x48\xc8\x21\x49\x92" "\x24\xc9\x29\x21\x31\x49\x92\x90\x18\x72\x4a\x1a\x92\x90\x73\x92\xc3\x10" "\x92\xc3\x34\x26\x8d\xf3\xf9\x90\x73\xd2\xe4\x91\x26\x49\x42\x72\x0a\xfb" "\xbb\xf4\xf4\xbe\x9e\xf7\xe9\x79\xde\xbe\xf7\x7b\xfa\x3e\xdf\xf5\xcc\xfa" 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"\xc5\x95\x74\xb7\xba\x44\x57\xca\x95\x76\x65\x9c\x73\x65\x5d\x92\x6b\xed" "\xda\xb8\x36\xae\xad\x7b\xca\xb5\x73\xed\x5d\x07\xf7\xb4\x7b\xda\x3d\xe3" "\x9e\x71\x9d\x5d\x67\xf7\xac\xeb\xe2\x9e\x73\x5d\xdd\xf3\xae\x9b\x7b\xc1" "\x75\x77\x2f\xba\x17\xdd\x4b\xae\xa7\xeb\xe5\x7a\xbb\x97\x5d\x1f\xf7\x8a" "\xeb\xeb\xfa\xb9\x14\x97\xe2\x06\xb8\x01\x6e\xa0\x1b\xe8\x06\xbb\xc1\x6e" "\xa8\x1b\xea\x86\xb9\x61\x6e\xb8\x1b\xee\x52\x5d\xaa\x1b\xe9\x46\xba\x51" "\x6e\x94\x1b\xed\x46\xbb\x31\x6e\x8c\x1b\xe7\xc6\xb9\xf1\x6e\xbc\x9b\xe8" "\x26\xba\xc9\x6e\xb2\x9b\xea\xa6\xba\x69\x6e\x9a\x9b\xee\xa6\xbb\x19\x6e" "\x86\x9b\xe5\x66\xb9\x34\x97\xe6\xe6\xba\xb9\x6e\x9e\x9b\xe7\x16\xb8\x05" "\x6e\x61\xe2\x42\xb7\xc8\x2d\x72\x4b\xdc\x12\x97\xee\xd2\x5d\x86\xcb\x70" "\x99\x2e\xd3\x2d\x77\xcb\x5d\x96\xcb\x72\x2b\xdd\x4a\xb7\xda\xad\x76\x6b" "\xdd\x5a\xb7\xde\xad\x77\x1b\xdd\x46\xb7\xd9\x6d\x76\x5b\xdd\x56\xb7\xdd" "\x6d\x77\x3b\xdc\x0e\xb7\xcb\xed\x72\x7b\xdc\x1e\xb7\xcf\xed\x73\xfb\xdd" "\x7e\x77\xc0\x1d\x70\xd9\x2e\xdb\x1d\x74\x07\xdd\x21\x77\xc8\x1d\x76\xdf" "\xb8\x1c\xf7\xad\x3b\xe2\xbe\x73\x47\xdd\xf7\xee\x98\xfb\xc1\x1d\x77\x3f" "\xba\x13\xee\xa4\x3b\xe5\x7e\x72\xa7\xdd\xcf\xee\x8c\x3b\xeb\xce\xb9\xf3" "\xee\x82\xfb\xc5\x5d\x74\x97\xdc\x65\xe7\xdd\xd4\xc8\xbb\x91\x69\x91\xf7" "\x22\xd3\x23\xef\x47\x66\x44\x66\x46\x66\x45\x66\x47\xd2\x22\x73\x22\x73" "\x23\x1f\x44\xe6\x45\xe6\x47\x16\x44\x3e\x8c\x2c\x8c\x7c\x14\x59\x14\x59" "\x1c\x59\x12\x59\x1a\x49\x8f\x7c\x1c\xc9\x88\x2c\x8b\x64\x46\x3e\x89\x2c" "\x8f\x7c\x1a\xc9\x8a\xac\x88\xac\x8c\xac\x8a\xac\x8e\xac\x89\x78\x5f\x74" "\x47\xe8\x8b\xfb\x12\x3e\xea\x6f\xf1\x25\xfd\xad\x3e\xd1\x97\xf2\xa5\x7d" "\x19\xef\x7c\x59\x9f\xe4\x6f\xf3\xe5\xfc\xed\xbe\xbc\xbf\xc3\x57\xf0\x77" "\xfa\x8a\xfe\x2e\x5f\xc9\x57\xf6\x55\xfc\x13\xbe\x85\x6f\xe9\x5b\xf9\xd6" "\xbe\x8d\x7f\xd2\xb7\xf5\x4f\xf9\x76\xbe\xbd\xef\xe0\x9f\xf6\x1d\xfd\x33" "\xbe\x93\xef\xec\x93\xfd\xb3\xbe\x8b\x7f\xce\x77\xf5\xcf\xfb\x6e\xfe\x05" "\xdf\xdd\xbf\xe8\x7b\xf8\x97\x7c\x4f\xdf\xcb\xf7\xf6\x2f\xfb\x3e\xfe\x15" "\xdf\xd7\xf7\xf3\x29\xbe\xbf\x1f\xe0\x5f\xf5\x03\xfd\x20\x3f\xd8\x0f\xf1" "\x43\xfd\x6b\x7e\x98\x7f\xdd\x0f\xf7\x6f\xf8\x54\x3f\xc2\x8f\xf4\x6f\xfa" "\x51\xfe\x2d\x3f\xda\xbf\xed\xc7\xf8\xb1\x7e\x9c\x7f\xc7\x8f\xf7\x13\xfc" "\x44\x3f\xc9\x4f\xf6\x53\xfc\x54\xff\xae\x9f\xe6\xdf\xf3\xd3\xfd\xfb\x7e" "\x86\x9f\xe9\x67\xf9\xd9\x3e\xcd\xcf\xf1\x73\xfd\x07\x7e\x9e\x9f\xef\x17" "\xf8\x0f\xfd\x42\xff\x91\x5f\xe4\x17\xfb\x25\x7e\xa9\x4f\xf7\x1f\xfb\x0c" "\xbf\xcc\x67\xfa\x4f\xfc\x72\xff\xa9\xcf\xf2\x2b\xfc\x4a\xbf\xca\xaf\xf6" "\x6b\xfc\x5a\xbf\xce\xaf\xf7\x1b\xfc\x46\xbf\xc9\x6f\xf6\x5b\xfc\x56\xbf" "\xcd\x6f\xf7\x9f\xf9\x1d\x7e\xa7\xdf\xe5\x77\xfb\x3d\x7e\xaf\xdf\xe7\x3f" "\xf7\xfb\xfd\x17\xfe\x80\xff\xd2\x67\xfb\xaf\xfc\x41\xff\x17\x7f\xc8\x7f" "\xed\x0f\xfb\x6f\x7c\x8e\xff\xd6\x1f\xf1\xdf\xf9\xa3\xfe\x7b\x7f\xcc\xff" "\xe0\x8f\xfb\x1f\xfd\x09\x7f\xd2\x9f\xf2\x3f\xf9\xd3\xfe\x67\x7f\xc6\x9f" "\xf5\xe7\xfc\x79\x7f\xc1\xff\xe2\x2f\xfa\x4b\xfe\x32\xff\xcd\x1a\x63\x8c" "\x31\xc6\xd8\xff\x16\xf5\x07\xd7\xfb\xff\x83\xcf\xc9\xdf\xd6\x15\x03\x84" "\x10\xd7\xef\x2c\x92\xf3\xf7\x35\x37\x17\xfc\xeb\x7e\x90\x4c\xe8\x18\x11" "\x42\x3c\xdb\xaf\xc7\xa3\xff\xb1\x6a\xd5\x4a\x49\x49\xf9\xeb\xe5\x1a\xff" "\x99\x14\xb9\x9a\x9f\xe7\x6f\xe2\x15\xa2\x83\x78\x46\x24\x8b\xf6\xa2\xdc" "\x3f\xec\x6f\x90\xec\x75\x81\xfe\x79\x7d\x91\xa5\x44\x10\xbd\x53\x88\xd8" "\xab\x95\x7f\x15\x2b\xfe\xbe\xfe\xed\xff\xa4\xfe\x93\x4f\x8f\xcb\xa8\x18" "\x9e\x8b\xff\x6f\xea\x2f\x16\x22\xb1\xc4\xd5\x9c\x7c\xe2\x6a\x7c\xb5\x7e" "\xf9\x7f\x52\xbf\x50\xdb\x3f\xe8\x3f\xdf\xd7\x53\x85\x68\xf7\x37\x39\x71" "\xe2\x6a\x7c\xb5\x7e\x92\x78\x4a\x3c\x27\x92\xff\xcb\x57\x32\xc6\x18\x63" "\x8c\x31\xc6\x18\x63\x7f\x35\x48\x56\xe9\xf6\x47\xaf\x9f\x4b\x2c\x16\x22" "\x41\x5f\xcd\xc9\x2b\xae\xc6\x7f\xf4\xfa\x9c\x31\xc6\x18\x63\x8c\x31\xc6" "\x18\x63\xd7\xde\x0b\xbd\x7a\x77\x7e\x32\x39\xb9\x7d\x37\xde\xfc\x0b\x9b" "\xea\xff\x7f\xb4\xc1\x1b\xde\xfc\x69\x9b\x6b\xfd\x9b\x89\x31\xc6\x18\x63" "\x8c\x31\xf6\x67\xbb\x7a\xd3\x7f\xad\x3b\x61\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\x72\xaf\xff\x17\xff" "\x4e\xec\x5a\x9f\x91\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\xbb" "\xd6\xfe\x57\x00\x00\x00\xff\xff\x15\xd9\x34\x9a", 5376); syz_mount_image( /*fs=*/0x20006c00, /*dir=*/0x20001b40, /*flags=MS_I_VERSION|MS_SYNCHRONOUS|MS_NOSUID|MS_NOEXEC|MS_NODIRATIME|0x200000c4*/ 0x208008de, /*opts=*/0x20001b80, /*chdir=*/0x80, /*size=*/0x1500, /*img=*/0x20000580); memcpy((void*)0x20000040, "./file0\000", 8); syscall(__NR_mkdirat, /*fd=*/0xffffff9c, /*path=*/0x20000040ul, /*mode=S_IXUSR|S_IWUSR|S_IRUSR*/ 0x1c0ul); } 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); const char* reason; (void)reason; use_temporary_dir(); loop(); return 0; }