// https://syzkaller.appspot.com/bug?id=61d82411fb25b1ac2d4331ea91e7dca3d3128389 // 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 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; } 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"); } static void execute_one(void); #define WAIT_FLAGS __WALL static void loop(void) { int iter = 0; for (;; iter++) { reset_loop(); int pid = fork(); if (pid < 0) exit(1); if (pid == 0) { 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; } } } void execute_one(void) { memcpy((void*)0x20000000, "hfsplus\000", 8); memcpy((void*)0x20000280, "./file0\000", 8); memcpy( (void*)0x20000f80, "\x78\x9c\xec\xdd\xcd\x6f\x1c\x67\x19\x00\xf0\x67\xd6\xeb\xb5\x37\x95\x1c" "\xb7\x4d\xd3\x80\x2a\x61\x1a\xa9\x20\x2c\x12\x7f\xc8\x05\x73\x49\x40\x08" "\x19\x51\xa1\x2a\x1c\x90\xb8\x59\x8d\xd3\x58\xd9\xb8\xc1\x76\x91\xdb\x03" "\x71\x01\x89\x2b\x07\xfe\x80\x72\x30\x17\x38\x81\x10\x12\x12\x52\xa4\x72" "\x86\x5b\xc5\xcd\xe2\x54\x09\x89\x4b\x4f\x6e\x0f\x0c\x9a\xd9\x99\xf5\xd8" "\xdd\x0f\x3b\x8d\xbd\x36\xfd\xfd\xa2\xd9\x79\x66\xde\x99\x77\x9e\x79\xe6" "\x63\x77\x36\xb2\x36\x80\xcf\xac\xa5\xe9\xa8\x3f\x8a\x66\x2c\x4d\xbf\xb2" "\x95\x4d\xef\xee\xcc\xb7\x76\x77\xe6\xef\x97\x71\x44\x8c\x45\x44\x2d\xa2" "\xde\x1e\x45\xb2\x16\x91\xbc\x17\x71\x33\xda\x43\x7c\x2e\x9b\x59\x74\x97" "\xf4\xda\xce\xaf\x57\x17\x6f\xbd\xff\xe1\xee\x07\xed\xa9\x7a\xec\xf7\x97" "\xbd\x34\x7b\x27\x58\x3f\xca\x5e\x6c\x17\x43\x4c\x45\xc4\x48\x31\xfe\x14" "\x0e\xf4\xf7\xda\xe3\xf5\x37\xb6\x1f\x26\x9d\xca\x64\x05\xbb\x5a\x16\x0e" "\x86\x6d\x34\x22\xd2\x03\x7e\x7c\x79\xbf\xa5\x9b\x74\xa4\x32\xd1\xf3\x7a" "\x07\xce\x8f\xa4\xfd\xbe\x59\xd1\xbe\xfe\x27\x23\x2e\x44\xc4\x78\xf9\x86" "\xb6\xdd\x6e\xac\x9d\x7e\x86\x03\x1d\xeb\x5e\xb4\x7d\x72\x79\x00\x00\x00" "\xc0\x99\x71\x71\xef\x61\xc4\x56\x4c\x0c\x3b\x0f\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x38\x4f\x8a\xdf\xff\x4f\x8a\xa1\x56\xc6\x53\x91\x94\xbf\xff" "\xdf\xa8\xfc\xc6\x7e\x63\xc8\xe9\xf6\xd6\x3f\xb3\xf1\x32\x78\x54\x3b\x8d" "\x64\x00\x00\x00\x00\x00\x00\x00\xe0\x64\x7d\x61\x2f\x7e\x77\x2b\x4d\x27" "\xca\xe9\x34\xc9\xff\xcf\xff\xc5\x7c\xe2\x52\xfe\xfa\x54\xbc\x19\x1b\xb1" "\x12\xeb\x71\x2d\xb6\x62\x39\x36\x63\x33\xd6\x63\x36\x22\x26\x2b\x1d\x35" "\xb6\x96\x37\x37\xd7\x67\xcb\x35\x3f\x4e\xd3\xb4\xc7\x9a\x73\x5d\xd7\x9c" "\x3b\x62\xc2\xcd\x27\xb1\xd7\x00\x00\x00\x00\x00\x00\x00\xf0\x7f\xe3\x46" "\x31\xfe\x59\x2c\xc5\xc4\x90\x73\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\x80\x03\x92\x88\x91\xf6\x28\x1f\x2e\x95\xf1\x64\xd4\xea\x11\x31\x1e" "\x11\x8d\x6c\xb9\xed\x88\x7f\x94\xf1\x79\xf6\x68\xd8\x09\x00\x00\x00\xc0" "\x29\xb8\xb8\x17\x7b\xb1\x15\x13\xe5\x74\x9a\xe4\xcf\xfc\x97\xf3\xe7\xfe" "\xf1\x78\x33\xd6\x62\x33\x56\x63\x33\x5a\xb1\x12\xb7\xf3\xef\x02\xda\x4f" "\xfd\xb5\xdd\x9d\xf9\xd6\xee\xce\xfc\xfd\x6c\xf8\x64\xbf\xdf\xfc\xcf\x7e" "\xfc\xc7\x89\x81\x69\xe4\x3d\x46\xfb\xbb\x87\xee\x5b\xbe\x92\x2f\xd1\x8c" "\x3b\xb1\x9a\xcf\xb9\x16\xaf\xc5\x1b\xd1\x8a\xdb\x51\xcb\xd7\xcc\x5c\x29" "\xf3\xe9\x9e\xd7\x3b\x59\x4e\xc9\x8d\xb6\x34\x3d\x5a\x81\x6e\x17\xe3\x6c" "\xcf\x7f\x55\x8c\xcf\x86\xc9\xbc\x22\xa3\x9d\x8a\xcc\x14\xb9\x65\xd5\x78" "\xba\x7f\x25\xaa\x47\xe7\x31\xb6\x34\x1b\xb5\xce\x37\x3f\x97\x8e\x51\xf3" "\x1b\x7d\xb7\x92\xfc\xb7\x3c\x26\x17\xca\x39\x11\x4f\x7d\x77\x70\xcd\x47" "\x8f\xb5\x33\x83\x35\x7b\x37\x1d\xae\xc4\x5c\xe5\xec\xbb\xdc\xa7\x12\xdf" "\xcb\x5e\xbe\xf4\xa7\xdf\xff\xf0\x6e\x6b\xed\xde\xdd\x64\x7b\xfa\xec\x9c" "\x46\xc7\x30\xf6\xaf\xfd\xab\x66\xf2\xc6\xc1\x4a\xcc\x57\x2a\xf1\x7c\xff" "\x73\xa2\x52\x89\x3b\x1b\xe7\xb3\x12\x87\xd5\xe2\xb9\x4e\xbc\x14\xdf\x89" "\x1f\xc4\x74\x4c\xc5\xab\xb1\x1e\xab\xf1\x93\x58\x8e\xcd\x58\x89\xa9\xf8" "\x76\x1e\x2d\x17\xe7\x73\xf6\x3a\xd9\xbf\x52\x37\x0f\x4c\xbd\x3a\x28\x8b" "\x46\x71\x86\x8e\x1c\xca\xe9\x8b\x17\xdb\xe3\x7e\x39\xbd\x98\xaf\x3b\x11" "\xab\xf1\xfd\x78\x23\x6e\xc7\x4a\xbc\x9c\xff\x9b\x8b\xd9\xf8\x5a\x2c\xc4" "\x42\x2c\x56\x8e\xf0\x73\x47\xb8\xea\x6b\x5d\xae\xfa\x3f\xf7\x4e\xfe\xea" "\x97\x8b\x20\xbb\xfc\x7e\xd9\xff\x32\x3c\x65\x59\x5d\x9f\xae\xd4\xb5\x7a" "\xcf\x9d\xcc\xdb\xaa\x73\x6a\x91\x8e\xb5\xd7\x7b\xe6\x89\xdd\x1b\x3b\xea" "\x9f\x2f\x82\xec\x48\xfc\xbc\x18\x9f\x0d\x9d\x4a\x8c\x47\xe7\x5d\xa2\xcc" "\xee\xd9\xb2\x02\xa3\x5d\x2b\xf1\x9b\xfc\xb6\xb2\xd1\x5a\xbb\xb7\x7e\x77" "\xf9\xc1\xa1\x7e\x93\xed\xee\xdb\x7b\x29\x0e\xee\xfe\xd9\xb9\x91\x64\xe7" "\xcb\x33\xd9\xc1\xca\xa7\x0e\x9e\x1d\x59\xdb\xb3\x5d\xdb\x66\xf3\xb6\x4b" "\x9d\xb6\xda\xe1\xb6\xdf\x36\x3b\x6d\x83\xae\xd4\x46\xf1\x19\xee\x93\x3d" "\xcd\xe5\x6d\xcf\x77\x6d\x9b\xcf\xdb\xae\x54\xda\xf6\x3f\x6f\x7d\x9c\xa6" "\x69\xfb\xf3\x16\x00\x67\x59\xb2\x97\x3d\x48\x7d\xe5\x42\xa3\xf9\xef\xe6" "\xdf\x9b\xef\x36\x7f\xd1\xbc\xdb\x7c\x65\xfc\x5b\x63\x5f\x1f\x7b\xa1\x11" "\xa3\x7f\x1b\xfd\x46\x7d\x66\xe4\xa5\xda\x0b\xc9\x1f\xe2\xdd\xf8\x69\x0c" "\x7e\x42\x07\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x06\xda\x78\xeb\xed\x7b\xcb\xad\xd6\xca" "\xfa\xa1\x20\x4d\xd3\x87\x3d\x9a\x4e\x24\x88\x7a\xc4\x81\x39\x7f\xfd\x4b" "\x65\x99\x88\xc8\x7f\x0c\xe8\xe8\x1d\x66\x4b\xdf\xac\x45\xe4\x73\xea\x51" "\x04\xc7\x4b\xec\xe1\xe3\xed\xce\x3b\x8f\x5b\x84\x7f\x16\xc7\xe4\x54\x0a" "\x7e\xac\xa0\x19\x87\x8e\x4e\x11\x8c\xf7\x3c\x7f\x0e\x07\x1f\xa5\x69\x3a" "\xec\xbd\x38\x7a\x90\x16\xce\x4a\x3e\xc3\x08\x86\x7a\x5b\x02\x4e\xc1\xf5" "\xcd\xfb\x0f\xae\x6f\xbc\xf5\xf6\x57\x57\xef\x2f\xbf\xbe\xf2\xfa\xca\xda" "\xe2\xc2\xc2\xe2\xcc\xe2\xc2\xcb\xf3\xd7\xef\x94\xcb\xac\xcc\x0c\x37\x47" "\xe0\x64\x54\x3e\x81\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\xe7\xc4\xd1" "\xfe\x38\x27\xe9\xd1\x54\x2f\x7a\x19\xb0\x3a\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xc0\xa7\xb0\x34" "\x1d\xf5\x47\x91\xc4\xec\xcc\xb5\x99\x6c\x7a\x77\x67\xbe\x95\x0d\x65\xbc" "\xbf\xe4\x47\x11\x51\x8b\x88\x64\x2a\x22\x79\x2f\xe2\x66\xb4\x87\x98\xac" "\x74\x97\xf4\xda\xce\x76\xc4\xad\xf7\x3f\xdc\xfd\xa0\x3d\x55\x2f\x86\x7c" "\xf9\x5a\xbf\xf5\xda\x7e\xd4\xe8\xdf\xbe\x5d\x0c\x31\x15\x11\x23\xc5\xb8" "\x8b\xf1\x6e\x33\xd3\x87\xbd\xfa\x4b\xf2\x7e\x1e\xf4\xee\xef\x88\x92\xce" "\x1e\x66\x05\xbb\x5a\x16\x0e\x86\xed\x7f\x01\x00\x00\xff\xff\x33\x34\x14" "\xa5", 1711); syz_mount_image(/*fs=*/0x20000000, /*dir=*/0x20000280, /*flags=MS_REC|MS_SYNCHRONOUS|MS_NODIRATIME*/ 0x4810, /*opts=*/0x20000880, /*chdir=*/0x11, /*size=*/0x6af, /*img=*/0x20000f80); memcpy((void*)0x20000040, "./file0\000", 8); memcpy((void*)0x20000080, "security.capability\000", 20); syscall(__NR_lsetxattr, /*path=*/0x20000040ul, /*name=*/0x20000080ul, /*val=*/0ul, /*size=*/0ul, /*flags=*/0ul); memcpy((void*)0x200004c0, "./file0\000", 8); syscall(__NR_listxattr, /*path=*/0x200004c0ul, /*list=*/0x20000500ul, /*size=*/0x19ul); } 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); loop(); return 0; }