// https://syzkaller.appspot.com/bug?id=1eb05e97c716fe611b036e8bbd59212190977567 // 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 #include #ifndef __NR_memfd_create #define __NR_memfd_create 319 #endif static unsigned long long procid; static bool write_file(const char* file, const char* what, ...) { char buf[1024]; va_list args; va_start(args, what); vsnprintf(buf, sizeof(buf), what, args); va_end(args); buf[sizeof(buf) - 1] = 0; int len = strlen(buf); int fd = open(file, O_WRONLY | O_CLOEXEC); if (fd == -1) return false; if (write(fd, buf, len) != len) { int err = errno; close(fd); errno = err; return false; } close(fd); return true; } //% This code is derived from puff.{c,h}, found in the zlib development. The //% original files come with the following copyright notice: //% Copyright (C) 2002-2013 Mark Adler, all rights reserved //% version 2.3, 21 Jan 2013 //% This software is provided 'as-is', without any express or implied //% warranty. In no event will the author be held liable for any damages //% arising from the use of this software. //% Permission is granted to anyone to use this software for any purpose, //% including commercial applications, and to alter it and redistribute it //% freely, subject to the following restrictions: //% 1. The origin of this software must not be misrepresented; you must not //% claim that you wrote the original software. If you use this software //% in a product, an acknowledgment in the product documentation would be //% appreciated but is not required. //% 2. Altered source versions must be plainly marked as such, and must not be //% misrepresented as being the original software. //% 3. This notice may not be removed or altered from any source distribution. //% Mark Adler madler@alumni.caltech.edu //% BEGIN CODE DERIVED FROM puff.{c,h} #define MAXBITS 15 #define MAXLCODES 286 #define MAXDCODES 30 #define MAXCODES (MAXLCODES + MAXDCODES) #define FIXLCODES 288 struct puff_state { unsigned char* out; unsigned long outlen; unsigned long outcnt; const unsigned char* in; unsigned long inlen; unsigned long incnt; int bitbuf; int bitcnt; jmp_buf env; }; static int puff_bits(struct puff_state* s, int need) { long val = s->bitbuf; while (s->bitcnt < need) { if (s->incnt == s->inlen) longjmp(s->env, 1); val |= (long)(s->in[s->incnt++]) << s->bitcnt; s->bitcnt += 8; } s->bitbuf = (int)(val >> need); s->bitcnt -= need; return (int)(val & ((1L << need) - 1)); } static int puff_stored(struct puff_state* s) { s->bitbuf = 0; s->bitcnt = 0; if (s->incnt + 4 > s->inlen) return 2; unsigned len = s->in[s->incnt++]; len |= s->in[s->incnt++] << 8; if (s->in[s->incnt++] != (~len & 0xff) || s->in[s->incnt++] != ((~len >> 8) & 0xff)) return -2; if (s->incnt + len > s->inlen) return 2; if (s->outcnt + len > s->outlen) return 1; for (; len--; s->outcnt++, s->incnt++) { if (s->in[s->incnt]) s->out[s->outcnt] = s->in[s->incnt]; } return 0; } struct puff_huffman { short* count; short* symbol; }; static int puff_decode(struct puff_state* s, const struct puff_huffman* h) { int first = 0; int index = 0; int bitbuf = s->bitbuf; int left = s->bitcnt; int code = first = index = 0; int len = 1; short* next = h->count + 1; while (1) { while (left--) { code |= bitbuf & 1; bitbuf >>= 1; int count = *next++; if (code - count < first) { s->bitbuf = bitbuf; s->bitcnt = (s->bitcnt - len) & 7; return h->symbol[index + (code - first)]; } index += count; first += count; first <<= 1; code <<= 1; len++; } left = (MAXBITS + 1) - len; if (left == 0) break; if (s->incnt == s->inlen) longjmp(s->env, 1); bitbuf = s->in[s->incnt++]; if (left > 8) left = 8; } return -10; } static int puff_construct(struct puff_huffman* h, const short* length, int n) { int len; for (len = 0; len <= MAXBITS; len++) h->count[len] = 0; int symbol; for (symbol = 0; symbol < n; symbol++) (h->count[length[symbol]])++; if (h->count[0] == n) return 0; int left = 1; for (len = 1; len <= MAXBITS; len++) { left <<= 1; left -= h->count[len]; if (left < 0) return left; } short offs[MAXBITS + 1]; offs[1] = 0; for (len = 1; len < MAXBITS; len++) offs[len + 1] = offs[len] + h->count[len]; for (symbol = 0; symbol < n; symbol++) if (length[symbol] != 0) h->symbol[offs[length[symbol]]++] = symbol; return left; } static int puff_codes(struct puff_state* s, const struct puff_huffman* lencode, const struct puff_huffman* distcode) { static const short lens[29] = {3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 15, 17, 19, 23, 27, 31, 35, 43, 51, 59, 67, 83, 99, 115, 131, 163, 195, 227, 258}; static const short lext[29] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 0}; static const short dists[30] = { 1, 2, 3, 4, 5, 7, 9, 13, 17, 25, 33, 49, 65, 97, 129, 193, 257, 385, 513, 769, 1025, 1537, 2049, 3073, 4097, 6145, 8193, 12289, 16385, 24577}; static const short dext[30] = {0, 0, 0, 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7, 8, 8, 9, 9, 10, 10, 11, 11, 12, 12, 13, 13}; int symbol; do { symbol = puff_decode(s, lencode); if (symbol < 0) return symbol; if (symbol < 256) { if (s->outcnt == s->outlen) return 1; if (symbol) s->out[s->outcnt] = symbol; s->outcnt++; } else if (symbol > 256) { symbol -= 257; if (symbol >= 29) return -10; int len = lens[symbol] + puff_bits(s, lext[symbol]); symbol = puff_decode(s, distcode); if (symbol < 0) return symbol; unsigned dist = dists[symbol] + puff_bits(s, dext[symbol]); if (dist > s->outcnt) return -11; if (s->outcnt + len > s->outlen) return 1; while (len--) { if (dist <= s->outcnt && s->out[s->outcnt - dist]) s->out[s->outcnt] = s->out[s->outcnt - dist]; s->outcnt++; } } } while (symbol != 256); return 0; } static int puff_fixed(struct puff_state* s) { static int virgin = 1; static short lencnt[MAXBITS + 1], lensym[FIXLCODES]; static short distcnt[MAXBITS + 1], distsym[MAXDCODES]; static struct puff_huffman lencode, distcode; if (virgin) { lencode.count = lencnt; lencode.symbol = lensym; distcode.count = distcnt; distcode.symbol = distsym; short lengths[FIXLCODES]; int symbol; for (symbol = 0; symbol < 144; symbol++) lengths[symbol] = 8; for (; symbol < 256; symbol++) lengths[symbol] = 9; for (; symbol < 280; symbol++) lengths[symbol] = 7; for (; symbol < FIXLCODES; symbol++) lengths[symbol] = 8; puff_construct(&lencode, lengths, FIXLCODES); for (symbol = 0; symbol < MAXDCODES; symbol++) lengths[symbol] = 5; puff_construct(&distcode, lengths, MAXDCODES); virgin = 0; } return puff_codes(s, &lencode, &distcode); } static int puff_dynamic(struct puff_state* s) { static const short order[19] = {16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15}; int nlen = puff_bits(s, 5) + 257; int ndist = puff_bits(s, 5) + 1; int ncode = puff_bits(s, 4) + 4; if (nlen > MAXLCODES || ndist > MAXDCODES) return -3; short lengths[MAXCODES]; int index; for (index = 0; index < ncode; index++) lengths[order[index]] = puff_bits(s, 3); for (; index < 19; index++) lengths[order[index]] = 0; short lencnt[MAXBITS + 1], lensym[MAXLCODES]; struct puff_huffman lencode = {lencnt, lensym}; int err = puff_construct(&lencode, lengths, 19); if (err != 0) return -4; index = 0; while (index < nlen + ndist) { int symbol; int len; symbol = puff_decode(s, &lencode); if (symbol < 0) return symbol; if (symbol < 16) lengths[index++] = symbol; else { len = 0; if (symbol == 16) { if (index == 0) return -5; len = lengths[index - 1]; symbol = 3 + puff_bits(s, 2); } else if (symbol == 17) symbol = 3 + puff_bits(s, 3); else symbol = 11 + puff_bits(s, 7); if (index + symbol > nlen + ndist) return -6; while (symbol--) lengths[index++] = len; } } if (lengths[256] == 0) return -9; err = puff_construct(&lencode, lengths, nlen); if (err && (err < 0 || nlen != lencode.count[0] + lencode.count[1])) return -7; short distcnt[MAXBITS + 1], distsym[MAXDCODES]; struct puff_huffman distcode = {distcnt, distsym}; err = puff_construct(&distcode, lengths + nlen, ndist); if (err && (err < 0 || ndist != distcode.count[0] + distcode.count[1])) return -8; return puff_codes(s, &lencode, &distcode); } static int puff(unsigned char* dest, unsigned long* destlen, const unsigned char* source, unsigned long sourcelen) { struct puff_state s = { .out = dest, .outlen = *destlen, .outcnt = 0, .in = source, .inlen = sourcelen, .incnt = 0, .bitbuf = 0, .bitcnt = 0, }; int err; if (setjmp(s.env) != 0) err = 2; else { int last; do { last = puff_bits(&s, 1); int type = puff_bits(&s, 2); err = type == 0 ? puff_stored(&s) : (type == 1 ? puff_fixed(&s) : (type == 2 ? puff_dynamic(&s) : -1)); if (err != 0) break; } while (!last); } *destlen = s.outcnt; return err; } //% END CODE DERIVED FROM puff.{c,h} #define ZLIB_HEADER_WIDTH 2 static int puff_zlib_to_file(const unsigned char* source, unsigned long sourcelen, int dest_fd) { if (sourcelen < ZLIB_HEADER_WIDTH) return 0; source += ZLIB_HEADER_WIDTH; sourcelen -= ZLIB_HEADER_WIDTH; const unsigned long max_destlen = 132 << 20; void* ret = mmap(0, max_destlen, PROT_WRITE | PROT_READ, MAP_PRIVATE | MAP_ANON, -1, 0); if (ret == MAP_FAILED) return -1; unsigned char* dest = (unsigned char*)ret; unsigned long destlen = max_destlen; int err = puff(dest, &destlen, source, sourcelen); if (err) { munmap(dest, max_destlen); errno = -err; return -1; } if (write(dest_fd, dest, destlen) != (ssize_t)destlen) { munmap(dest, max_destlen); return -1; } return munmap(dest, destlen); } static int setup_loop_device(unsigned char* data, unsigned long size, const char* loopname, int* loopfd_p) { int err = 0, loopfd = -1; int memfd = syscall(__NR_memfd_create, "syzkaller", 0); if (memfd == -1) { err = errno; goto error; } if (puff_zlib_to_file(data, size, memfd)) { err = errno; goto error_close_memfd; } loopfd = open(loopname, O_RDWR); if (loopfd == -1) { err = errno; goto error_close_memfd; } if (ioctl(loopfd, LOOP_SET_FD, memfd)) { if (errno != EBUSY) { err = errno; goto error_close_loop; } ioctl(loopfd, LOOP_CLR_FD, 0); usleep(1000); if (ioctl(loopfd, LOOP_SET_FD, memfd)) { err = errno; goto error_close_loop; } } close(memfd); *loopfd_p = loopfd; return 0; error_close_loop: close(loopfd); error_close_memfd: close(memfd); error: errno = err; return -1; } static long syz_mount_image(volatile long fsarg, volatile long dir, volatile long flags, volatile long optsarg, volatile long change_dir, volatile unsigned long size, volatile long image) { unsigned char* data = (unsigned char*)image; int res = -1, err = 0, loopfd = -1, need_loop_device = !!size; char* mount_opts = (char*)optsarg; char* target = (char*)dir; char* fs = (char*)fsarg; char* source = NULL; char loopname[64]; if (need_loop_device) { memset(loopname, 0, sizeof(loopname)); snprintf(loopname, sizeof(loopname), "/dev/loop%llu", procid); if (setup_loop_device(data, size, loopname, &loopfd) == -1) return -1; source = loopname; } mkdir(target, 0777); char opts[256]; memset(opts, 0, sizeof(opts)); if (strlen(mount_opts) > (sizeof(opts) - 32)) { } strncpy(opts, mount_opts, sizeof(opts) - 32); if (strcmp(fs, "iso9660") == 0) { flags |= MS_RDONLY; } else if (strncmp(fs, "ext", 3) == 0) { bool has_remount_ro = false; char* remount_ro_start = strstr(opts, "errors=remount-ro"); if (remount_ro_start != NULL) { char after = *(remount_ro_start + strlen("errors=remount-ro")); char before = remount_ro_start == opts ? '\0' : *(remount_ro_start - 1); has_remount_ro = ((before == '\0' || before == ',') && (after == '\0' || after == ',')); } if (strstr(opts, "errors=panic") || !has_remount_ro) strcat(opts, ",errors=continue"); } else if (strcmp(fs, "xfs") == 0) { strcat(opts, ",nouuid"); } res = mount(source, target, fs, flags, opts); if (res == -1) { err = errno; goto error_clear_loop; } res = open(target, O_RDONLY | O_DIRECTORY); if (res == -1) { err = errno; goto error_clear_loop; } if (change_dir) { res = chdir(target); if (res == -1) { err = errno; } } error_clear_loop: if (need_loop_device) { ioctl(loopfd, LOOP_CLR_FD, 0); close(loopfd); } errno = err; return res; } static void setup_common() { if (mount(0, "/sys/fs/fuse/connections", "fusectl", 0, 0)) { } } static void setup_binderfs() { if (mkdir("/dev/binderfs", 0777)) { } if (mount("binder", "/dev/binderfs", "binder", 0, NULL)) { } if (symlink("/dev/binderfs", "./binderfs")) { } } static void loop(); static void sandbox_common() { prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0); setsid(); struct rlimit rlim; rlim.rlim_cur = rlim.rlim_max = (200 << 20); setrlimit(RLIMIT_AS, &rlim); rlim.rlim_cur = rlim.rlim_max = 32 << 20; setrlimit(RLIMIT_MEMLOCK, &rlim); rlim.rlim_cur = rlim.rlim_max = 136 << 20; setrlimit(RLIMIT_FSIZE, &rlim); rlim.rlim_cur = rlim.rlim_max = 1 << 20; setrlimit(RLIMIT_STACK, &rlim); rlim.rlim_cur = rlim.rlim_max = 128 << 20; setrlimit(RLIMIT_CORE, &rlim); rlim.rlim_cur = rlim.rlim_max = 256; setrlimit(RLIMIT_NOFILE, &rlim); if (unshare(CLONE_NEWNS)) { } if (mount(NULL, "/", NULL, MS_REC | MS_PRIVATE, NULL)) { } if (unshare(CLONE_NEWIPC)) { } if (unshare(0x02000000)) { } if (unshare(CLONE_NEWUTS)) { } if (unshare(CLONE_SYSVSEM)) { } typedef struct { const char* name; const char* value; } sysctl_t; static const sysctl_t sysctls[] = { {"/proc/sys/kernel/shmmax", "16777216"}, {"/proc/sys/kernel/shmall", "536870912"}, {"/proc/sys/kernel/shmmni", "1024"}, {"/proc/sys/kernel/msgmax", "8192"}, {"/proc/sys/kernel/msgmni", "1024"}, {"/proc/sys/kernel/msgmnb", "1024"}, {"/proc/sys/kernel/sem", "1024 1048576 500 1024"}, }; unsigned i; for (i = 0; i < sizeof(sysctls) / sizeof(sysctls[0]); i++) write_file(sysctls[i].name, sysctls[i].value); } static int wait_for_loop(int pid) { if (pid < 0) exit(1); int status = 0; while (waitpid(-1, &status, __WALL) != pid) { } return WEXITSTATUS(status); } static void drop_caps(void) { struct __user_cap_header_struct cap_hdr = {}; struct __user_cap_data_struct cap_data[2] = {}; cap_hdr.version = _LINUX_CAPABILITY_VERSION_3; cap_hdr.pid = getpid(); if (syscall(SYS_capget, &cap_hdr, &cap_data)) exit(1); const int drop = (1 << CAP_SYS_PTRACE) | (1 << CAP_SYS_NICE); cap_data[0].effective &= ~drop; cap_data[0].permitted &= ~drop; cap_data[0].inheritable &= ~drop; if (syscall(SYS_capset, &cap_hdr, &cap_data)) exit(1); } static int do_sandbox_none(void) { if (unshare(CLONE_NEWPID)) { } int pid = fork(); if (pid != 0) return wait_for_loop(pid); setup_common(); sandbox_common(); drop_caps(); if (unshare(CLONE_NEWNET)) { } write_file("/proc/sys/net/ipv4/ping_group_range", "0 65535"); setup_binderfs(); loop(); exit(1); } static void setup_binfmt_misc() { if (mount(0, "/proc/sys/fs/binfmt_misc", "binfmt_misc", 0, 0)) { } write_file("/proc/sys/fs/binfmt_misc/register", ":syz0:M:0:\x01::./file0:"); write_file("/proc/sys/fs/binfmt_misc/register", ":syz1:M:1:\x02::./file0:POC"); } uint64_t r[2] = {0xffffffffffffffff, 0xffffffffffffffff}; void loop(void) { intptr_t res = 0; memcpy((void*)0x20000c00, "udf\000", 4); memcpy((void*)0x20000c40, "./file0\000", 8); memcpy( (void*)0x20000140, "\x00\x00\x00\xcf\x6b\x89\x06\xa8\xfe\x59\x85\x1b\x23\xf6\x74\xaf\xfe\xfb" "\xba\xaa\x55\x0b\x34\xe1\x61\x8d\xea\xff\xe7\x3d\xf4\xa2\xe4\x63\x2d\x7c" "\xe4\x7d\x1c\x73\xd5\xfa\x89\x67\xcf\x71\x54\xe3\xca\x1b\x47\x2d\x27\xfe" "\x1d\x52\x8d\xe8\x15\xb8\x4e\x56\x06\x99\xbf\x10\xde\xd1\xf9\x71\xd4\x80" "\xc0\x2f\x72\x1b\x32\xd9\xfb\xf5\x41\xd4\x83\x69\x5c\x18\x60\xf6\x06\xd7" "\xec\x3a\x1a\xda\xfb\x1e\xc0\x11\x5a\xa0\x82\x12\xbc\x09\x36\x2f\x1d\xa7" "\x94\x54\x66\x81\x98\xa9\xf9\xdf\xc4\xfd\x46\x8f\x20\x1f\xfc\xff\x15\x82" "\x0d\xc8\xd7\xfc\xd2\x0e\xd6\x30\x51\xfb\xfe\x73\x0f\x4e\xed\x4b\x85\xb8" "\xcc\xb9\x27\x02\x36\x7c\xb9\xa4\x2d\x44\xf0\x72\x40\x7a\x9e\x1c\x37\xbf" "\xb6\xbd\x80\xe9\x7c\x5d\x88\x57\xf1\x0f\xc6\x55\x05\xe3\x63\x05\x7e\xa3" "\x28\x63\xc3\x03\xf8\xf4\x47\x0d\x7a\x2c\x2a\x45\x19\x7d\x5f\xce\x36\x34" "\x28\x14\xf8\xec\xb7\xd7\xf8\x22\x36\x7e\xbd\x24\x2f\xc9\xda\x10\x09\x9d" "\x14\xf1\xb2\x53\x1a\x86\xc5\x42\x4a\x9b\x41\x26\x44\x6c\xba\x48\xa5\x11" "\xe1\x63\x3f\x19\x10\x5a\x03\x21\x88\x77\xdf\xab\x92\x84\x85\xd8\xb0\x02" "\x39\xb6\xb8\x5a\xc5\xa4\xe0\x8f\x38\x67\xb4\x0f\x7e\x4b\xa7\xc1\x08", 269); memcpy( (void*)0x20000cc0, "\x78\x9c\xec\xdd\x41\x6c\x1c\xd7\x79\x07\xf0\xef\x0d\x49\x91\x92\x8b\x64" "\xeb\x58\xb2\x93\x1a\xc1\xda\x05\x1c\x55\x69\x54\x92\x8a\x2d\x1b\x0c\x50" "\xab\x66\x89\xa6\x51\x6c\xd6\x14\x93\xb6\xee\xc1\x2b\x71\xa5\x6e\x45\x2d" "\x17\x24\xe5\xc8\x46\x9b\xb8\x27\x1f\x5a\xa0\x6c\x0a\xf4\xd2\x14\x28\x50" "\xa4\x30\x7a\x08\xd8\x43\x0e\xed\x29\x05\x0a\xf4\x4a\x14\xb9\x15\x05\xd4" "\x34\x75\x5d\x14\x05\xf6\x10\x23\x97\xc2\x2c\x66\xf6\x2d\xb9\x92\x68\x8b" "\x30\x45\x51\x92\x7f\x3f\x40\xfa\x0f\x67\xbf\xb7\x3b\xf3\xde\x7a\x66\xb8" "\x6f\xc7\x0a\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x20\xe2" "\x57\x7e\xf5\xcc\xf8\x44\x3a\xe8\xad\x00\x00\xee\xa6\x17\xe7\x5e\x1e\x9f" "\x74\xfe\x07\x80\x8f\x95\x73\x7e\xff\x07\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x80\x7b\x5d\x8a\x22\xde\x8d\x14\xdf\x78\xbc\x9b\x5e\xad\x7e\xee" "\x19\x3b\xdb\x6a\x5f\xbd\x36\x3f\x3d\xb3\x73\xb3\xc3\xa9\x6a\x39\x54\xd5" "\x97\x7f\xc6\x26\x26\x4f\x7d\xf1\xe9\x67\x4e\x3f\xdb\xcf\x0f\x6f\x7f\xa7" "\x7d\x3a\x5e\x9a\x3b\x77\xa6\xfe\xc2\xd2\x95\xce\x72\x73\x65\xa5\xb9\x50" "\x9f\x6f\xb7\x2e\x2c\x2d\x34\x77\xfd\x0c\x7b\x6d\x7f\xb3\x13\x55\x07\xd4" "\xaf\x5c\xbe\xba\x70\xf1\xe2\x4a\x7d\xf2\xe4\xa9\x1b\x1e\xbe\x56\x7b\x67" "\xf4\xa1\x63\xb5\xa9\xd3\x13\xaf\x1c\xed\xd7\xce\x4f\xcf\xcc\xcc\x0d\xd4" "\x0c\x8f\x7c\xe4\x57\xbf\xc5\x07\xdd\xe1\x71\x28\x8a\xb8\x18\x29\x2e\xbf" "\xfd\x6e\x6a\x44\x44\x11\x7b\xef\x8b\xdb\xbc\x77\xf6\xdb\xe1\x6a\x27\x4e" "\x54\x3b\x31\x3f\x3d\x53\xed\xc8\x62\xab\xd1\x5e\x2d\x1f\x9c\xed\x77\x44" "\x11\x51\x1b\x68\xf4\x7c\xbf\x8f\xee\xc2\x58\xec\x49\x3d\xe2\xcd\x72\xf3" "\xcb\x0d\x3e\x51\xee\xde\x5c\xa7\xb1\xdc\x38\xbf\xd8\xac\xcf\x36\x96\x57" "\x5b\xab\xad\xa5\xf6\x6c\xea\x6d\x6d\xaa\xca\x8b\x78\x36\x45\x74\x22\xa2" "\x3b\x7a\xeb\xd3\x8d\x44\x11\xdf\x8c\x14\x6f\x7d\xa7\x9b\xce\x47\xc4\x50" "\xbf\x1f\x3e\x5f\xdd\x18\x7c\xfb\xed\x29\xf6\x61\x1f\x77\x61\x38\x22\x6a" "\x23\x11\x1b\xc5\x7d\x30\x66\xf7\xb0\xd1\x28\xe2\x7b\x91\xe2\xdb\xdf\x1a" "\x8f\x0b\xb9\x5f\xab\x6e\x7b\x2a\xe2\xab\x65\x1e\x8b\xb8\x5a\xe6\xf5\x88" "\xb5\x32\x3f\x1b\x91\xca\x37\xc8\x23\x11\xef\xed\xf0\x7e\xe2\xfe\x32\x1c" "\x45\xfc\x51\xa4\xf8\xc9\x54\x37\x2d\xf4\xc7\xbe\x3a\xae\x9c\xfd\x5a\xfd" "\xcb\xed\x8b\x4b\x03\xb5\xfd\xe3\xca\x7d\x7f\x7e\xb8\x9b\xee\xf1\x63\xd3" "\x58\x14\xd1\xa8\x8e\xf8\xdd\xf4\xd1\x2f\x76\x00\x00\x00\x00\x00\xb8\xf7" "\x14\xf1\xa7\x91\xe2\x89\x1f\x1e\x4f\x9d\x18\x9c\x53\x6c\xb5\x2f\xd5\xcf" "\x35\xce\x2f\xf6\x3e\x15\xee\x7f\xf6\x5f\xcf\xad\x36\x37\x37\x37\x6b\xa9" "\x97\xe3\x39\x67\x73\x76\x72\xae\xe5\x5c\xcf\xb9\x91\xb3\x9b\xb3\x56\xe4" "\xf6\x39\x67\x73\x76\x72\xae\xe5\x5c\xcf\xb9\x91\xb3\x9b\xb3\x36\x94\xdb" "\xe7\x9c\xcd\xd9\xc9\xb9\x96\x73\x3d\xe7\x46\xce\x6e\xce\xda\x70\x6e\x9f" "\x73\x36\x67\x27\xe7\x5a\xce\xf5\x9c\x1b\x39\xbb\xc3\x07\x38\x5c\x00\x00" "\x00\x00\x00\x00\x00\xb0\x83\xc3\x51\xc4\xd7\x23\xc5\x53\xbf\xf4\x5a\x75" "\x5f\x71\x54\xf7\xa5\x7f\x72\xea\xf4\xcb\x27\x7f\x7d\xf0\x9e\xf1\xc7\x6e" "\xf3\x3c\x65\xed\xc9\x88\x58\x2f\x76\x77\x4f\xee\xa1\x7c\xeb\xf0\x6c\x9a" "\x4d\xe9\x80\xee\x21\xa6\x77\xff\xdf\x1f\xe4\xfb\xff\xfe\xf0\xa0\x37\x06" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\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\x50\x45\x14\xf1\x64\xa4\x78\xed\xfb" "\xdd\x14\x29\x22\xea\x11\xaf\x46\x2f\xaf\x8f\x1e\xf4\xd6\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\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x77\xc2\x58\x2a\xe2\xbd\x48\xf1\xe7\x5f" "\x19\xab\x7e\xde\x28\x22\x7e\x3b\x22\xde\xdf\x7c\x7f\x33\x22\xae\xbf\xbf" "\x79\xa7\x1d\xf4\x1e\x03\x00\x00\x00\x00\x00\x00\xc0\x03\x28\x15\xf1\x7a" "\xa4\x78\xf2\xe5\x6e\xaa\x45\xc4\xb5\xda\x3b\xa3\x0f\x1d\xab\x4d\x9d\x9e" "\x78\xe5\xe8\x50\x0c\x45\x2a\x4b\x06\xeb\x5f\x9a\x3b\x77\xa6\xfe\xc2\xd2" "\x95\xce\x72\x73\x65\xa5\xb9\x50\x9f\x6f\xb7\x2e\x2c\x2d\x34\x77\xfb\x72" "\x63\x67\x5b\xed\xab\xd7\xe6\xa7\x67\xf6\x65\x67\x6e\xeb\xf0\x3e\x6f\xff" "\xe1\xb1\x17\x96\x3a\xaf\x2f\xb7\x2e\xfd\xee\xea\x8e\x8f\x1f\x19\x3b\x73" "\x7e\x65\x75\xb9\x71\x61\xe7\x87\xe3\x70\x14\x11\xf5\xc1\x35\x27\xaa\x0d" "\x9e\x9f\x9e\xa9\x36\x7a\xb1\xd5\x68\x57\x4d\x67\xd3\x6e\xb7\x18\x00\x00" "\x00\x00\x00\x00\x80\x8f\x83\x91\x54\xc4\xfb\x91\xe2\xad\xbf\x79\x7b\x6b" "\xde\x79\xb8\x37\xe7\x3f\x7c\x73\xed\x77\xbf\x14\x51\xe4\xe5\xe9\x3c\xff" "\xbc\x35\x0d\x5d\x7d\x6f\xe0\x13\xd5\xf7\x06\x7a\xcb\x9f\x9c\x3a\xfd\x1b" "\x93\x9f\x19\x5c\xde\x71\xca\xfa\x44\x35\xa1\x5e\x9f\x9f\x9e\x99\x99\x1b" "\x58\x3d\x3c\x72\x6b\xe9\x58\x7e\xdd\xf1\xbd\xed\x32\x03\xca\xf1\x5f\x8d" "\x14\x7f\xfc\x97\xf5\xf4\x44\x5e\x77\xe3\xf8\x0f\x6d\xd5\x7e\xf7\xf7\xb7" "\xc7\xfb\xcd\x9b\x9f\xe8\x03\xc6\x7c\xaf\xe3\xff\xb3\x03\xeb\xca\xd7\x4c" "\xa9\x88\xbf\x8b\x14\x3f\xf7\x9b\x8f\xc5\x13\xd5\x76\x1e\x89\x5b\xbe\x33" "\x91\xeb\xbe\x12\x29\x7e\x6b\xfd\xf1\x5c\x17\x87\xca\xba\x27\xf3\xe3\x0f" "\x57\x7f\x8f\x5d\x6c\x2d\x36\xc7\xcb\xda\x6b\x91\xe2\x1f\xaf\xde\x58\xfb" "\x54\xae\xfd\xd4\x76\xed\xc4\xae\x3b\xf6\x3e\x51\x8e\xff\x93\x91\xe2\x7f" "\x7e\x67\x7d\xab\x6f\xf2\xf8\xe7\x11\xd8\x1e\xb5\xc1\xf1\xff\xcc\xcd\xef" "\x8e\x7d\x1a\xff\x87\x07\xd6\xd5\xf2\xeb\xfe\xfc\x9d\xd9\x75\x22\x62\xe5" "\xf5\x37\x2e\x37\x16\x17\x9b\xcb\x16\x2c\x58\xb0\xb0\xb5\x70\xd0\x47\x26" "\xee\x86\xf2\xfc\xff\xf5\x48\xf1\x0f\x7f\xf6\xaf\x5b\xd7\x3b\xf9\xfc\xff" "\x33\xbd\x9f\xb6\xaf\xff\x7e\xfa\xcd\xed\xf3\xff\xd4\xcd\x4f\xb4\x4f\xe7" "\xff\x4f\x0d\xac\x9b\xca\x57\x23\x23\xc3\x11\x63\xab\x57\x3a\x23\x8f\x46" "\x8c\xad\xbc\xfe\xc6\x17\x5a\x57\x1a\x97\x9a\x97\x9a\xed\x53\xa7\x9f\x7b" "\x66\x72\xfc\xb9\x89\xf1\x53\x23\x87\xfa\x17\x77\xdb\x4b\x7b\xee\xab\x07" "\x51\x39\xfe\xbf\x17\x29\xbe\xf7\xa3\xbf\x8d\xcf\xe5\x75\x37\x5e\xff\xed" "\x7c\xfd\x7f\xe4\xe6\x27\xda\xa7\xf1\x7f\x64\x60\xdd\x91\x1b\xae\x57\xf6" "\xbc\xeb\xe4\xf1\xff\xbf\x48\xf1\xcf\xd3\x3f\x88\xe3\x79\xdd\x87\x5d\xff" "\xf7\x7f\xff\x3f\x9e\x2f\xc2\xb7\xae\xcf\xf7\x69\xfc\x8f\x0e\xac\xab\x7e" "\xc7\xfb\x44\xc4\x2f\x0c\xac\x3b\x7e\x34\xe2\x81\xfb\xa5\x0c\x00\x00\x00" "\xee\xb0\x94\x8a\xf8\x41\x9e\x4f\x1d\xbf\xcd\x7c\xea\x3f\x45\x8a\x37\xfe" "\xfb\x17\x73\x5d\x3a\x56\xd6\x3d\x9f\x1f\xaf\x55\x7f\x8f\xbd\xb8\xd4\xfe" "\xc2\x99\xc5\xc5\xa5\x0b\x8d\xd5\xc6\xf9\xc5\x66\x7d\xae\xd3\xb8\xd0\x2c" "\xdb\xfe\x38\x52\x74\xff\xfa\xf1\xdc\xb6\xa8\xe6\x57\xfb\xf3\xcd\xbd\x39" "\xde\xed\xb9\xd8\x7f\x89\x14\xcf\xfd\x5a\xbf\xb6\x37\x17\xdb\xff\x6c\xea" "\x91\xed\xda\x89\xb2\xf6\x64\xa4\xf8\x93\x17\x6f\xac\xed\x7f\x8e\x71\x74" "\xbb\x76\xb2\xac\xfd\xb7\x48\x31\xf1\xca\xce\xb5\xc7\xb6\x6b\x4f\x95\xb5" "\xff\x15\x29\x7e\xfa\x17\xf5\x7e\xed\x91\xb2\xf6\x4b\xb9\xf6\xd1\xed\xda" "\x93\x17\x96\x16\x17\xf6\x61\x58\x00\x00\x00\x00\x00\x60\x4f\x46\x52\x11" "\xcf\x44\x8a\xbf\x3f\x35\x9c\xfa\x9f\x6f\xef\xe6\xfb\x9f\xb7\x7c\xe8\xbd" "\x4f\xdf\xff\x7b\x74\x60\xdd\xc2\x5d\xba\x5f\x65\xcf\x9d\x0a\x00\xf7\xb8" "\xf2\xfc\x7f\xbc\x3c\xab\xff\xf2\x5f\x6d\xcd\xe5\xdf\x78\xfe\xdf\xfe\xff" "\x00\x0c\x9e\xff\x6f\x36\xf8\xef\x06\x7c\xd0\xf2\x47\x39\xff\xd7\xee\xcc" "\x6e\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x7c\xec\xa4\x28\x62\x29\x52\x7c\xe3\xf1\x6e\xba\x3e\x5a\xfe\xdc" "\x33\x76\xb6\xd5\xbe\x7a\x6d\x7e\x7a\x66\xe7\x66\x87\x53\xd5\x72\xa8\xaa" "\x2f\xff\x8c\x4d\x4c\x9e\xfa\xe2\xd3\xcf\x9c\x7e\xb6\x9f\x1f\xde\xfe\x4e" "\xfb\x74\xbc\x34\x77\xee\x4c\xfd\x85\xa5\x2b\x9d\xe5\xe6\xca\x4a\x73\xa1" "\x3e\xdf\x6e\x5d\x58\x5a\x68\xee\xfa\x19\xf6\xda\xfe\x66\x27\xaa\x0e\xa8" "\x5f\xb9\x7c\x75\xe1\xe2\xc5\x95\xfa\xe4\xc9\x53\x37\x3c\x7c\xad\xf6\xce" "\xe8\x43\xc7\x6a\x53\xa7\x27\x5e\x39\xda\xaf\x9d\x9f\x9e\x99\x99\x1b\xa8" "\x19\x1e\xf9\xc8\xaf\x7e\x8b\xf4\x01\xeb\x0f\x45\x11\xff\x1b\x29\x2e\xbf" "\xfd\x6e\xfa\xf7\xd1\x88\x22\xf6\xde\x17\xb7\x79\xef\xec\xb7\xc3\xd5\x4e" "\x9c\xa8\x76\x62\x7e\x7a\xa6\xda\x91\xc5\x56\xa3\xbd\x5a\x3e\x38\xdb\xef" "\x88\x22\xa2\x36\xd0\xe8\xf9\x7e\x1f\xdd\x85\xb1\xd8\x93\x7a\xc4\x9b\xe5" "\xe6\x97\x1b\x7c\xa2\xdc\xbd\xb9\x4e\x63\xb9\x71\x7e\xb1\x59\x9f\x6d\x2c" "\xaf\xb6\x56\x5b\x4b\xed\xd9\xd4\xdb\xda\x54\x95\x17\xf1\x6c\x8a\xe8\x44" "\x44\x77\xf4\xd6\xa7\x1b\x89\x22\x46\x22\xc5\x5b\xdf\xe9\xa6\x1f\x8d\x46" "\x0c\xf5\xfb\xe1\xf3\x2f\xce\xbd\x3c\x3e\x79\xfb\xed\x29\xf6\x61\x1f\x77" "\x61\x38\x22\x6a\x23\x11\x1b\xc5\x7d\x30\x66\xf7\xb0\xd1\x28\xe2\xe9\x48" "\xf1\xed\x6f\x8d\xc7\x7f\x8c\xf6\xfa\xb5\xea\xb6\xa7\x22\xbe\x5a\xe6\xb1" "\x88\xab\x65\x5e\x8f\x58\x2b\xf3\xb3\x11\xa9\x7c\x83\x3c\x12\xf1\xde\x0e" "\xef\x27\xee\x2f\xc3\x51\xc4\xc3\x91\xe2\x27\x53\xdd\xf4\xe3\xd1\x3c\xf6" "\xd5\x71\xe5\xec\xd7\xea\x5f\x6e\x5f\x5c\x1a\xa8\xed\x1f\x57\xee\xfb\xf3" "\xc3\xdd\x74\x8f\x1f\x9b\xc6\xa2\x88\x77\xab\x23\x7e\x37\xfd\xa7\xff\x9e" "\x01\x00\x00\x00\x00\x1e\x20\x45\x3c\x16\x29\x9e\xf8\xe1\xf1\x54\xcd\x0f" "\x6e\xcd\x29\xb6\xda\x97\xea\xe7\x1a\xe7\x17\x7b\x1f\xeb\xf7\x3f\xfb\xaf" "\xe7\x56\x9b\x9b\x9b\x9b\xb5\xd4\xcb\xf1\x9c\xb3\x39\x3b\x39\xd7\x72\xae" "\xe7\xdc\xc8\xd9\xcd\x59\x2b\x72\xfb\x9c\xb3\x39\x3b\x39\xd7\x72\xae\xe7" "\xdc\xc8\xd9\xcd\x59\x1b\xca\xed\x73\xce\xe6\xec\xe4\x5c\xcb\xb9\x9e\x73" "\x23\x67\x37\x67\x6d\x38\xb7\xcf\x39\x9b\xb3\x93\x73\x2d\xe7\x7a\xce\x8d" "\x9c\xdd\xe1\x83\x1c\x2f\x00\x00\x00\x00\x00\x00\x80\x9d\x15\x51\xc4\xe7" "\x22\xc5\x6b\xdf\xef\xa6\xcd\xd1\xde\x04\xef\xab\xd1\xcb\xeb\xee\x07\x7a" "\xe0\xfd\x7f\x00\x00\x00\xff\xff\x56\xe5\x5b\x7a", 3054); syz_mount_image(0x20000c00, 0x20000c40, 0x1c, 0x20000140, 1, 0xbee, 0x20000cc0); memcpy((void*)0x200000c0, "./bus\000", 6); syscall(__NR_open, 0x200000c0ul, 0x14da42ul, 0ul); memcpy((void*)0x20000280, "/dev/loop", 9); *(uint8_t*)0x20000289 = 0x30; *(uint8_t*)0x2000028a = 0; memcpy((void*)0x200003c0, "./bus\000", 6); syscall(__NR_mount, 0x20000280ul, 0x200003c0ul, 0ul, 0x1042ul, 0ul); memcpy((void*)0x200000c0, "./bus\000", 6); res = syscall(__NR_open, 0x200000c0ul, 0x14da42ul, 0ul); if (res != -1) r[0] = res; memcpy((void*)0x20000040, "/proc/self/exe\000", 15); res = syscall(__NR_openat, -1, 0x20000040ul, 0ul, 0ul); if (res != -1) r[1] = res; syscall(__NR_sendfile, r[0], r[1], 0ul, 0x80001d00c0d0ul); } int main(void) { syscall(__NR_mmap, 0x1ffff000ul, 0x1000ul, 0ul, 0x32ul, -1, 0ul); syscall(__NR_mmap, 0x20000000ul, 0x1000000ul, 7ul, 0x32ul, -1, 0ul); syscall(__NR_mmap, 0x21000000ul, 0x1000ul, 0ul, 0x32ul, -1, 0ul); setup_binfmt_misc(); do_sandbox_none(); return 0; }