// https://syzkaller.appspot.com/bug?id=47918174613db46c53bdf674594b8eb5db1881c5 // 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; 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[4] = {0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff}; void execute_one(void) { intptr_t res = 0; memcpy((void*)0x20000280, "cgroup.controllers\000", 19); res = syscall(__NR_openat, /*fd=*/0xffffff9c, /*file=*/0x20000280ul, /*flags=*/0x275aul, /*mode=*/0ul); if (res != -1) r[0] = res; memcpy((void*)0x20000180, "cgroup.controllers\000", 19); res = syscall(__NR_openat, /*fd=*/0xffffff9c, /*file=*/0x20000180ul, /*flags=*/0x275aul, /*mode=*/0ul); if (res != -1) r[1] = res; res = syscall(__NR_dup3, /*oldfd=*/r[1], /*newfd=*/r[0], /*flags=*/0ul); if (res != -1) r[2] = res; memcpy((void*)0x200001c0, "cpuset.effective_cpus\000", 22); res = syscall(__NR_openat, /*fd=*/0xffffff9c, /*file=*/0x200001c0ul, /*flags=*/0x275aul, /*mode=*/0ul); if (res != -1) r[3] = res; *(uint32_t*)0x200000c0 = 0; *(uint32_t*)0x200000c4 = r[3]; *(uint64_t*)0x200000c8 = 0; *(uint64_t*)0x200000d0 = 8; *(uint64_t*)0x200000d8 = 0; *(uint64_t*)0x200000e0 = 0; syscall(__NR_ioctl, /*fd=*/r[2], /*cmd=*/0xc028660f, /*arg=*/0x200000c0ul); memcpy((void*)0x20000080, "ext4\000", 5); memcpy((void*)0x20000040, "./file1\000", 8); memcpy((void*)0x20000000, "errors=remount-ro", 17); *(uint8_t*)0x20000011 = 0x2c; memcpy((void*)0x20000012, "oldalloc", 8); *(uint8_t*)0x2000001a = 0x2c; memcpy((void*)0x2000001b, "user_xattr", 10); *(uint8_t*)0x20000025 = 0x2c; memcpy((void*)0x20000026, "bsddf", 5); *(uint8_t*)0x2000002b = 0x2c; *(uint8_t*)0x2000002c = 0; memcpy( (void*)0x20000240, "\x78\x9c\xec\xdd\xdf\x6b\x1c\x5b\x1d\x00\xf0\xef\x4c\xb2\x6d\xd3\xa6\x6e" "\xaa\x3e\xd4\x82\xb5\xb4\x95\xb4\x68\x77\x93\xc6\x1f\xc5\x87\x5a\x41\xec" "\x53\x41\xad\xaf\x52\x63\xb2\x09\x21\x9b\x6c\xc8\x6e\xda\x26\x14\x49\xf1" "\x0f\x10\x44\x54\xf0\xc9\x27\x5f\x04\xff\x00\x41\xfa\x27\x88\x50\x50\xf0" "\x51\x54\x14\xd1\xd6\xfb\x70\x1f\xee\xbd\x7b\xd9\xdd\xd9\xde\x34\xec\x76" "\x73\xdb\x4d\xa6\x24\x9f\x0f\x4c\xe6\x9c\x99\x9d\xfd\x7e\x4f\x42\xce\xce" "\x99\x39\xec\x04\x70\x64\x5d\x88\x88\x5b\x11\x31\x12\x11\x57\x23\xa2\x98" "\x6d\x4f\xb3\xe5\x76\xab\xb2\xdd\x79\xdd\xf3\x67\x8f\xe6\x5a\x4b\x12\xcd" "\xe6\xdd\xff\x26\x91\x64\xdb\xba\xef\x95\x64\xeb\x53\x9d\x43\xe2\x44\x44" "\x7c\xf7\x76\xc4\x0f\x93\xce\xfb\xef\x54\xdf\xdc\x5a\x9e\xad\x56\x2b\xeb" "\x59\xbd\xdc\x58\x59\x2b\xd7\x37\xb7\xae\x2d\xad\xcc\x2e\x56\x16\x2b\xab" "\x33\x33\xd3\x5f\xb9\xf1\xd5\x1b\x5f\xbe\x31\x35\x94\x76\x4e\x44\xc4\xcd" "\x6f\xfe\xf3\xe7\x3f\xf9\xcd\xb7\x6e\xfe\xe1\x8b\x0f\xfe\x76\xef\xdf\x57" "\x7e\xd4\xca\x77\x3c\xdb\xbf\xb3\x1d\xc3\xd4\xf9\x9d\x14\xda\xbf\x8b\xae" "\xd1\x88\x58\xdf\x8f\x60\x39\xe8\xfe\x5d\x0b\x39\xe7\x01\x00\xc0\xde\xb4" "\xce\xf1\x3f\x19\x11\x17\xdb\xe7\xff\xc5\x18\x69\x9f\x9d\x02\x00\x00\x00" "\x87\x49\xf3\xeb\xe3\xf1\x5e\x12\xd1\x04\x00\x00\x00\x0e\xad\xb4\x3d\x07" "\x36\x49\x4b\xd9\x5c\x80\xf1\x48\xd3\x52\xa9\x33\x87\xf7\xd3\x71\x32\xad" "\xd6\xea\x8d\x2f\x2c\xd4\x36\x56\xe7\x3b\x73\x65\x27\xa2\x90\x2e\x2c\x55" "\x2b\x53\xd9\x5c\xe1\x89\x28\x24\xad\xfa\x74\x36\xc7\xb6\x5b\xbf\xbe\xab" "\x3e\x13\x11\x67\x22\xe2\x67\xc5\xb1\x76\xbd\x34\x57\xab\xce\xe7\x7d\xf1" "\x03\x00\x00\x00\x8e\x88\x53\xbb\xc6\xff\xef\x14\x3b\xe3\x7f\x00\x00\x00" "\xe0\x90\x99\xc8\x3b\x01\x00\x00\x00\x60\xdf\x19\xff\x03\x00\x00\xc0\xe1" "\xf7\x7a\xe3\xff\x74\xe8\x79\x00\x00\x00\x00\xfb\xe2\xdb\x77\xee\xb4\x96" "\x66\xf7\xf9\xd7\xf3\xf7\x37\x37\x96\x6b\xf7\xaf\xcd\x57\xea\xcb\xa5\x95" "\x8d\xb9\xd2\x5c\x6d\x7d\xad\xb4\x58\xab\x2d\xb6\xbf\xb3\x6f\x65\xd0\xfb" "\x55\x6b\xb5\xb5\x2f\xc5\xea\xc6\xc3\x72\xa3\x52\x6f\x94\xeb\x9b\x5b\xf7" "\x56\x6a\x1b\xab\x8d\x7b\x4b\x2f\x3d\x02\x1b\x00\x00\x00\x38\x40\x67\x3e" "\xf7\xe4\x2f\x49\x44\x6c\x7f\x6d\xac\xbd\xb4\x1c\xcb\x3b\x29\xe0\x40\x24" "\x83\x5e\xb0\xf8\xd7\x8f\xca\xff\xd8\xe7\x64\x80\x03\x35\x92\x77\x02\x40" "\x6e\x46\xf3\x4e\x00\xc8\x4d\x21\xef\x04\x80\xdc\x0d\xba\x0e\xd0\x77\xf2" "\xce\x1f\x87\x9f\x0b\x00\x00\xb0\x3f\x26\x3f\xd3\xff\xfe\xbf\x6b\x03\x70" "\xb8\xf9\x12\x0f\x00\x38\x7a\x7a\xde\xff\x1f\x38\x29\x10\x38\x0c\x0a\x66" "\x00\xc2\x91\xf7\x89\x01\xfb\xdf\xfc\xfe\x7f\xb3\xf9\xb1\x12\x02\x00\x00" "\x86\x6e\xbc\xbd\x24\x69\x29\xbb\x17\x38\x1e\x69\x5a\x2a\x45\x9c\x6e\x3f" "\x16\xa0\x90\x2c\x2c\x55\x2b\x53\xd9\xf8\xe0\xcf\xc5\xc2\xf1\x56\x7d\xba" "\x7d\x64\xe2\x32\x21\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\xec\x51\xb3\x99\x44\xf3\xf5\x8c\xb5\x0f\x07\x00" "\x00\x00\xde\x7a\x11\xe9\xbf\x92\xec\x91\x9f\x93\xc5\xcb\xe3\xbb\xaf\x0f" "\x1c\x4b\xde\x2d\xb6\xd7\x11\xf1\xe0\x57\x77\x7f\xf1\x70\xb6\xd1\x58\x9f" "\x6e\x6d\xff\xdf\x8b\xed\x8d\x5f\x66\xdb\xaf\xe7\x71\x05\x03\x00\x00\x00" "\xd8\xad\x3b\x4e\xef\x8e\xe3\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\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x60\x98\x9e\x3f\x7b\x34\xd7\x5d\x0e\x32" "\xee\x7f\xbe\x11\x11\x13\xbd\xe2\x8f\xc6\x89\xf6\xfa\x44\x14\x22\xe2\xe4" "\xff\x93\x18\xdd\x71\x5c\x12\x11\x23\x43\x88\xbf\xfd\x38\x22\xce\xf6\x8a" "\x9f\xb4\xd2\x8a\x89\x2c\x8b\x5e\xf1\xc7\x72\x8c\x9f\x46\xc4\xa9\x21\xc4" "\x87\xa3\xec\x49\xab\xff\xb9\xf5\xd2\xff\xdf\xf1\xce\x9e\x34\x2e\xb4\xd7" "\xbd\xff\xff\x46\xb3\xe5\x4d\xf5\xef\xff\xd2\x17\xfd\xdf\x48\x9f\xfe\xe7" "\xf4\x1e\x63\x9c\x7b\xfa\xbb\x72\xdf\xf8\x8f\x23\xce\x8d\xf6\xee\x7f\xba" "\xf1\x93\x3e\xf1\x2f\x65\xeb\x41\x7e\xf0\xbd\xad\xad\x7e\xfb\x9a\xbf\x8e" "\x98\xec\xf9\xf9\x93\xbc\x14\xab\xdc\x58\x59\x2b\xd7\x37\xb7\xae\x2d\xad" "\xcc\x2e\x56\x16\x2b\xab\x33\xdd\xde\x7f\xaa\xbc\xb0\x54\xad\x64\x3f\x7b" "\xc6\xf8\xe9\x67\x7f\xff\xc1\xab\xda\x7f\xb2\x4f\xfc\x89\x01\xed\xbf\xbc" "\x87\xb6\xb7\xbc\xff\xf4\xe1\xb3\x4f\x75\x8a\x85\x5e\xf1\xaf\x5c\xea\xfd" "\xf9\x7b\xb6\x4f\xfc\x34\xfb\xec\xfb\x7c\x56\x6e\xed\x9f\xec\x96\xb7\x3b" "\xe5\x9d\xce\xff\xf6\x4f\xe7\xb3\xe2\xc5\x62\x8f\xf8\xf3\x7d\xda\x3f\xe8" "\xef\x7f\x65\x8f\xed\xbf\xfa\x9d\x1f\xff\x7d\x8f\x2f\x05\x00\x0e\x40\x7d" "\x73\x6b\x79\xb6\x5a\xad\xac\x2b\x1c\xb5\xc2\xf7\xdf\x8e\x34\x14\xde\xce" "\x42\xde\x3d\x13\x00\x00\x30\x6c\xf5\xcd\xe3\xd9\x49\x7f\xde\x99\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xc0\xd1\x75\x10\x5f" "\x27\xb6\x3b\xe6\x76\x3e\x4d\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x78\xa5\x0f\x03\x00\x00" "\xff\xff\xb0\xa5\xcf\xed", 1230); syz_mount_image(/*fs=*/0x20000080, /*dir=*/0x20000040, /*flags=*/0, /*opts=*/0x20000000, /*chdir=*/0x12, /*size=*/0x4cf, /*img=*/0x20000240); memcpy((void*)0x200001c0, "./file1\000", 8); memcpy((void*)0x20000200, "security.", 9); memcpy((void*)0x20000209, "user_xattr", 10); memcpy((void*)0x20000740, "{[&\\{!L\000", 8); syscall(__NR_setxattr, /*path=*/0x200001c0ul, /*name=*/0x20000200ul, /*val=*/0x20000740ul, /*size=*/0xf0eul, /*flags=*/0ul); } 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); use_temporary_dir(); loop(); return 0; }