// https://syzkaller.appspot.com/bug?id=c5fa40d992b334ea85a59ec78b859306e921a3d0 // 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"); } else if (strncmp(fs, "gfs2", 4) == 0 && (strstr(opts, "errors=panic") || strstr(opts, "debug"))) { strcat(opts, ",errors=withdraw"); } 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)) { } // syz_mount_image$ext4 arguments: [ // fs: ptr[in, buffer] { // buffer: {65 78 74 34 00} (length 0x5) // } // dir: ptr[in, buffer] { // buffer: {2e 2f 66 69 6c 65 30 00} (length 0x8) // } // flags: mount_flags = 0x200700 (8 bytes) // opts: ptr[in, fs_options[ext4_options]] { // fs_options[ext4_options] { // elems: array[fs_opt_elem[ext4_options]] { // fs_opt_elem[ext4_options] { // elem: union ext4_options { // data_err_ignore: buffer: {64 61 74 61 5f 65 72 72 3d 69 67 6e // 6f 72 65} (length 0xf) // } // comma: const = 0x2c (1 bytes) // } // fs_opt_elem[ext4_options] { // elem: union ext4_options { // dioread_nolock: buffer: {64 69 6f 72 65 61 64 5f 6e 6f 6c 6f // 63 6b} (length 0xe) // } // comma: const = 0x2c (1 bytes) // } // fs_opt_elem[ext4_options] { // elem: union ext4_options { // debug_want_extra_isize: fs_opt["debug_want_extra_isize", // fmt[hex, int32]] { // name: buffer: {64 65 62 75 67 5f 77 61 6e 74 5f 65 78 74 72 // 61 5f 69 73 69 7a 65} (length 0x16) eq: const = 0x3d (1 // bytes) val: int32 = 0x5a (18 bytes) // } // } // comma: const = 0x2c (1 bytes) // } // fs_opt_elem[ext4_options] { // elem: union ext4_options { // grpquota: buffer: {67 72 70 71 75 6f 74 61} (length 0x8) // } // comma: const = 0x2c (1 bytes) // } // fs_opt_elem[ext4_options] { // elem: union ext4_options { // nombcache: buffer: {6e 6f 6d 62 63 61 63 68 65} (length 0x9) // } // comma: const = 0x2c (1 bytes) // } // fs_opt_elem[ext4_options] { // elem: union ext4_options { // nolazytime: buffer: {6e 6f 6c 61 7a 79 74 69 6d 65} (length // 0xa) // } // comma: const = 0x2c (1 bytes) // } // fs_opt_elem[ext4_options] { // elem: union ext4_options { // nobh: buffer: {6e 6f 62 68} (length 0x4) // } // comma: const = 0x2c (1 bytes) // } // } // common: array[fs_opt_elem[fs_options_common]] { // } // null: const = 0x0 (1 bytes) // } // } // chdir: int8 = 0x1 (1 bytes) // size: len = 0x477 (8 bytes) // img: ptr[in, buffer] { // buffer: (compressed buffer with length 0x477) // } // ] // returns fd_dir memcpy((void*)0x200000000180, "ext4\000", 5); memcpy((void*)0x200000000000, "./file0\000", 8); memcpy((void*)0x200000000040, "data_err=ignore", 15); *(uint8_t*)0x20000000004f = 0x2c; memcpy((void*)0x200000000050, "dioread_nolock", 14); *(uint8_t*)0x20000000005e = 0x2c; memcpy((void*)0x20000000005f, "debug_want_extra_isize", 22); *(uint8_t*)0x200000000075 = 0x3d; sprintf((char*)0x200000000076, "0x%016llx", (long long)0x5a); *(uint8_t*)0x200000000088 = 0x2c; memcpy((void*)0x200000000089, "grpquota", 8); *(uint8_t*)0x200000000091 = 0x2c; memcpy((void*)0x200000000092, "nombcache", 9); *(uint8_t*)0x20000000009b = 0x2c; memcpy((void*)0x20000000009c, "nolazytime", 10); *(uint8_t*)0x2000000000a6 = 0x2c; memcpy((void*)0x2000000000a7, "nobh", 4); *(uint8_t*)0x2000000000ab = 0x2c; *(uint8_t*)0x2000000000ac = 0; memcpy( (void*)0x200000001040, "\x78\x9c\xec\xdb\xcd\x6f\x14\xe5\x1f\x00\xf0\xef\x4c\x5f\x80\x1f\x2f\xed" "\x0f\xf1\x05\x44\xad\x12\x93\x46\x63\x4b\x0b\x2a\x07\x2f\x1a\x4d\x8c\xc1" "\x68\xa2\x07\x3c\xd6\x76\x21\x0d\x0b\x35\xb4\x1a\x41\x22\xc5\x18\x4f\x26" "\x86\x44\xcf\xc6\xa3\xd1\xbf\xc0\x9b\x31\x31\xea\xc9\xc4\xab\x27\x4f\x86" "\x84\x28\x17\xc0\x53\xcd\xcc\xce\xc0\x76\xd9\x6d\xc5\x6e\x19\xec\x7e\x3e" "\xc9\xec\x3e\xcf\xcc\xb3\x3b\xcf\x77\x9f\x79\x79\xf6\x79\x76\x03\xe8\x59" "\x23\xd9\x43\x12\xb1\x2d\x22\x7e\x8d\x88\xa1\x46\x76\x79\x81\x91\xc6\xd3" "\xd5\xcb\x67\xa7\xaf\x5d\x3e\x3b\x9d\xc4\xd2\xd2\x6b\x7f\x24\x79\xb9\x2b" "\x97\xcf\x4e\x97\x45\xcb\xd7\x6d\x2d\x32\xa3\x69\x44\xfa\x61\x52\xec\x64" "\xb9\xf9\xd3\x67\x8e\x4f\xd5\xeb\xb5\x53\x45\x7e\x7c\xe1\xc4\x5b\xe3\xf3" "\xa7\xcf\x3c\xf1\xce\x89\xa9\x63\xb5\x63\xb5\x93\x93\x87\x0e\x1d\x3c\x30" "\xf1\xf4\x53\x93\x4f\x76\x25\xce\x2c\xae\x2b\x7b\xde\x9f\xdb\xbb\xfb\xc5" "\x37\x2e\xbc\x3c\x7d\xe4\xc2\x9b\x3f\x7e\x9d\xd5\x77\x5b\xb1\xbd\x39\x8e" "\x6e\x19\xc9\x02\xff\x73\x29\xd7\xba\xed\xd1\x6e\xef\xac\x62\xdb\x9b\xd2" "\x49\x7f\x85\x15\xe1\x96\xf4\x45\x44\xd6\x5c\x03\xf9\xf9\x3f\x14\x7d\x71" "\xa3\xf1\x86\xe2\x85\x0f\x2a\xad\x1c\xb0\xae\xb2\x7b\xd3\xa6\xce\x9b\x17" "\x97\x80\x0d\x2c\x89\xaa\x6b\x00\x54\xa3\xbc\xd1\x67\xdf\x7f\xcb\xe5\x36" "\x75\x3d\xee\x08\x97\x9e\x6d\x7c\x01\xca\xe2\xbe\x5a\x2c\x8d\x2d\xfd\x91" "\x16\x65\x06\x5a\xbe\xdf\x76\xd3\x48\x44\x1c\x59\xfc\xeb\xf3\x6c\x89\x75" "\x1a\x87\x00\x00\x68\xf6\xf1\xf4\x67\x87\x07\x23\xe2\xbd\x6b\x5f\xbd\x94" "\xf5\x3d\x86\x22\xa2\x1c\x0f\xba\x27\x7f\xfc\x2d\x7f\xdc\x51\xcc\xa1\x0c" "\x47\xc4\xff\x23\x62\x67\x44\xdc\x15\x11\xbb\x22\xe2\xee\xa2\xec\xbd\x11" "\x71\xdf\x1a\xeb\x73\x73\xff\x27\xbd\xb8\xc6\xb7\x5c\x51\xd6\xff\x7b\xa6" "\x98\xdb\x5a\xde\xff\x2b\x7b\x7f\x31\xdc\x57\xe4\xb6\xe7\xf1\x0f\x24\x47" "\x67\xeb\xb5\xfd\xc5\x67\x32\x1a\x03\x9b\xb2\xfc\xc4\x0a\xfb\xf8\xf6\xf9" "\x5f\x3e\xe9\xb4\xad\xb9\xff\x97\x2d\xd9\xfe\xcb\xbe\x60\x51\x8f\x8b\xfd" "\x2d\x03\x74\x33\x53\x0b\x53\x79\xa7\xb4\x0b\x2e\x9d\x8f\xd8\xd3\xdf\x2e" "\xfe\xe4\xfa\x4c\x40\x12\x11\xbb\x23\x62\xcf\xad\xbd\xf5\x8e\x32\x31\xfb" "\xd8\x97\x7b\x3b\x15\x5a\x3d\xfe\x15\x74\x61\x9e\x69\xe9\x8b\x2c\xbc\xc5" "\x2c\xfe\xc5\x68\x89\xbf\x94\x34\xcf\x4f\xce\xde\x34\x3f\x39\xbe\x39\xea" "\xb5\xfd\xe3\xe5\x51\x71\xb3\x9f\x7e\xfe\xe8\xd5\x4e\xfb\x5f\x53\xfc\x5d" "\x70\xa9\xd6\x78\x6e\x6a\xff\xd6\x22\xc3\x49\xf3\x7c\xed\x7c\x77\xf7\xff" "\x2f\x8f\xff\x74\x30\x79\x3d\x9f\x67\x1e\x2c\xd6\xbd\x3b\xb5\xb0\x70\x6a" "\x22\x62\x30\x39\x9c\xe7\x97\xad\x9f\xbc\xf1\xda\x32\x5f\x96\xcf\x8e\xff" "\xd1\x7d\xed\xcf\xff\x9d\xc5\x6b\xb2\xf8\xef\x8f\x88\xec\x20\x7e\x20\x22" "\x1e\x8c\x88\x87\x8a\xba\x3f\x1c\x11\x8f\x44\xc4\xbe\x15\x62\xfc\xe1\xb9" "\xd5\xe3\x8f\xb4\xa2\xf6\x3f\x1f\x31\xd3\xf6\xfa\x77\xfd\xf8\x6f\x69\xff" "\x5b\x4f\xf4\x1d\xff\xfe\x9b\x4e\xfb\xff\x67\xed\x7f\x30\x4f\x8d\x16\x6b" "\xf2\xeb\xdf\x2a\xda\x55\x27\xbb\x5c\xb4\x56\x70\x2d\x9f\x1d\x00\x00\x00" "\xfc\x57\xa4\xf9\x6f\xe0\x93\x74\xec\x7a\x3a\x4d\xc7\xc6\x1a\xbf\xe1\xdf" "\x15\xff\x4b\xeb\x73\xf3\x0b\x8f\x1f\x9d\x7b\xfb\xe4\x4c\xe3\xb7\xf2\xc3" "\x31\x90\x96\x23\x5d\x43\xc5\x78\x68\x7d\xb6\x5e\x9b\x48\x16\x8b\x77\x6c" "\x8c\x8f\x4e\x16\x63\xc5\xe5\x78\xe9\x81\x62\xdc\xf8\xd3\xbe\x2d\x79\x7e" "\x6c\x7a\xae\x3e\x53\x71\xec\xd0\xeb\xb6\x76\x38\xff\x33\xbf\xf7\x55\x5d" "\x3b\x60\x9d\x6d\x69\xbb\x76\x72\xf0\xb6\x57\x04\xa8\x40\xeb\x3c\x7a\xba" "\x3c\x7b\xee\x95\x70\x31\x80\x8d\xca\xff\xb5\xa1\x77\xad\x72\xfe\x37\xff" "\x0f\x06\xd8\x60\xdc\xff\xa1\x77\xb5\x3b\xff\xcf\xb5\xe4\xcd\x05\xc0\xc6" "\xe4\xfe\x0f\xbd\xcb\xf9\x0f\x3d\x2a\xfd\xae\xea\x1a\x00\x15\x72\xff\x87" "\x9e\xb4\x96\xff\xf5\x77\x25\xb1\x25\xda\x6d\xda\x5c\x59\x7d\xee\x80\x44" "\xf5\x8d\xd2\x9a\x48\x6e\xac\x89\xb2\xbd\x22\xbd\x03\x2a\x26\xb1\x6e\x89" "\xaa\xaf\x4c\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\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\xdd\xf1\x77" "\x00\x00\x00\xff\xff\x59\x46\xe5\x50", 1143); syz_mount_image(/*fs=*/0x200000000180, /*dir=*/0x200000000000, /*flags=MS_RELATIME|MS_NOATIME|0x300*/ 0x200700, /*opts=*/0x200000000040, /*chdir=*/1, /*size=*/0x477, /*img=*/0x200000001040); } int main(void) { syscall(__NR_mmap, /*addr=*/0x1ffffffff000ul, /*len=*/0x1000ul, /*prot=*/0ul, /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/(intptr_t)-1, /*offset=*/0ul); syscall(__NR_mmap, /*addr=*/0x200000000000ul, /*len=*/0x1000000ul, /*prot=PROT_WRITE|PROT_READ|PROT_EXEC*/ 7ul, /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/(intptr_t)-1, /*offset=*/0ul); syscall(__NR_mmap, /*addr=*/0x200001000000ul, /*len=*/0x1000ul, /*prot=*/0ul, /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/(intptr_t)-1, /*offset=*/0ul); const char* reason; (void)reason; for (procid = 0; procid < 5; procid++) { if (fork() == 0) { use_temporary_dir(); loop(); } } sleep(1000000); return 0; }