// https://syzkaller.appspot.com/bug?id=c2fe1403d829cf5c2110804d8e90123502249963 // 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 #ifndef __NR_memfd_create #define __NR_memfd_create 319 #endif static unsigned long long procid; //% 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; } uint64_t r[2] = {0xffffffffffffffff, 0xffffffffffffffff}; int main(void) { syscall(__NR_mmap, /*addr=*/0x1ffff000ul, /*len=*/0x1000ul, /*prot=*/0ul, /*flags=*/0x32ul, /*fd=*/-1, /*offset=*/0ul); syscall(__NR_mmap, /*addr=*/0x20000000ul, /*len=*/0x1000000ul, /*prot=*/7ul, /*flags=*/0x32ul, /*fd=*/-1, /*offset=*/0ul); syscall(__NR_mmap, /*addr=*/0x21000000ul, /*len=*/0x1000ul, /*prot=*/0ul, /*flags=*/0x32ul, /*fd=*/-1, /*offset=*/0ul); intptr_t res = 0; memcpy((void*)0x20000040, "ext4\000", 5); memcpy((void*)0x20000500, "./file1\000", 8); memcpy((void*)0x20000100, "discard", 7); *(uint8_t*)0x20000107 = 0x2c; memcpy((void*)0x20000108, "noquota", 7); *(uint8_t*)0x2000010f = 0x2c; memcpy((void*)0x20000110, "dioread_lock", 12); *(uint8_t*)0x2000011c = 0x2c; memcpy((void*)0x2000011d, "grpquota", 8); *(uint8_t*)0x20000125 = 0x2c; memcpy((void*)0x20000126, "auto_da_alloc", 13); *(uint8_t*)0x20000133 = 0x2c; memcpy((void*)0x20000134, "grpjquota=", 10); *(uint8_t*)0x2000013e = 0x2c; memcpy((void*)0x2000013f, "quota", 5); *(uint8_t*)0x20000144 = 0x2c; memcpy((void*)0x20000145, "init_itable", 11); *(uint8_t*)0x20000150 = 0x3d; sprintf((char*)0x20000151, "0x%016llx", (long long)0xc202); *(uint8_t*)0x20000163 = 0x2c; memcpy((void*)0x20000164, "usrquota", 8); *(uint8_t*)0x2000016c = 0x2c; *(uint8_t*)0x2000016d = 0; memcpy( (void*)0x20000600, "\x78\x9c\xec\xdd\x51\x6b\x5b\xd7\x1d\x00\xf0\xff\xbd\xb6\x32\x27\x71\x66" "\x67\xdb\x43\x16\x58\x16\x96\x0c\x27\x6c\x91\xec\x78\x49\xcc\x1e\xb2\x0c" "\xc6\xf2\x14\xd8\x96\xbd\x67\x9e\x2d\x1b\x63\xd9\x32\x96\x9c\xc4\x26\x0c" "\x87\x7d\x80\xc1\x18\xdb\x60\x4f\x7b\xda\xcb\xa0\x1f\xa0\x50\xf2\x11\x4a" "\x21\xd0\xbe\x97\xb6\xb4\x94\x36\x69\x1f\xfa\xd0\x56\x45\xd2\x55\x9a\xb8" "\x92\xed\x50\xd9\x17\xec\xdf\x0f\xae\xef\x39\xf7\x4a\xfa\xff\x8f\x8d\xae" "\xee\x39\xf7\xf8\x2a\x80\x43\xeb\x6c\x44\xdc\x88\x88\x81\x88\xb8\x18\x11" "\x23\xd9\xf6\x34\x5b\x6e\x36\x2b\x9b\xed\xc7\x3d\x7d\xf2\x60\xa6\xb9\x24" "\xd1\x68\xdc\xfe\x28\x89\x24\xdb\xd6\x79\xad\x24\x5b\x1f\x6f\x3f\x25\x86" "\x22\xe2\x0f\x37\x23\xfe\x9c\x7c\x33\x6e\x6d\x7d\x63\x71\xba\x52\x29\xaf" "\x66\xf5\x52\x7d\x69\xa5\x54\x5b\xdf\xb8\xb4\xb0\x34\x3d\x5f\x9e\x2f\x2f" "\x4f\x4e\x4e\x5c\x9d\xba\x36\x75\x65\x6a\xbc\x2f\xed\x1c\x8d\x88\xeb\xbf" "\x79\xef\x9f\x7f\xfb\xdf\x6f\xaf\xbf\xf6\xf3\x7b\x6f\xdf\xf9\xe0\xc2\x5f" "\x9a\x69\x0d\x67\xfb\x9f\x6f\x47\x3f\xb5\x9b\x5e\x68\xfd\x2e\x3a\x06\x23" "\x62\x75\x2f\x82\xe5\x60\x20\x5b\x17\x72\xce\x03\x00\x80\xdd\x69\x9e\xe3" "\x7f\x2f\x22\x7e\xd2\x3a\xff\x1f\x89\x81\xd6\xd9\x29\x00\x00\x00\x70\x90" "\x34\x7e\x35\x1c\x9f\x27\x11\x0d\x00\x00\x00\xe0\xc0\x4a\x5b\x73\x60\x93" "\xb4\x98\xcd\x05\x18\x8e\x34\x2d\x16\xdb\x73\x78\x7f\x10\xc7\xd2\x4a\xb5" "\x56\xff\xd9\x5c\x75\x6d\x79\xb6\x3d\x57\x76\x34\x0a\xe9\xdc\x42\xa5\x3c" "\x9e\xcd\x15\x1e\x8d\x42\xd2\xac\x4f\x64\x73\x6c\x3b\xf5\xcb\x5b\xea\x93" "\x11\x71\x32\x22\xfe\x31\x72\xb4\x55\x2f\xce\x54\x2b\xb3\x79\x0f\x7e\x00" "\x00\x00\xc0\x21\x71\x7c\x4b\xff\xff\xd3\x91\x76\xff\x1f\x00\x00\x00\x38" "\x60\x46\xf3\x4e\x00\x00\x00\x00\xd8\x73\xfa\xff\x00\x00\x00\x70\xf0\xe9" "\xff\x03\x00\x00\xc0\x81\xf6\xbb\x5b\xb7\x9a\x4b\xa3\xf3\xfd\xd7\xb3\x77" "\xd7\xd7\x16\xab\x77\x2f\xcd\x96\x6b\x8b\xc5\xa5\xb5\x99\xe2\x4c\x75\x75" "\xa5\x38\x5f\xad\xce\xb7\xee\xd9\xb7\xb4\xd3\xeb\x55\xaa\xd5\x95\x5f\xc4" "\xf2\xda\xfd\x52\xbd\x5c\xab\x97\x6a\xeb\x1b\x77\x96\xaa\x6b\xcb\xf5\x3b" "\x0b\x2f\x7c\x05\x36\x00\x00\x00\xb0\x8f\x4e\xfe\xf8\xd1\x5b\x49\x44\x6c" "\xfe\xf2\x68\x6b\x69\x3a\x92\x77\x52\xc0\xbe\x48\x5e\xe6\xc1\xef\xee\x5d" "\x1e\xc0\xfe\x1b\xc8\x3b\x01\x20\x37\x83\x79\x27\x00\xe4\xa6\x90\x77\x02" "\x40\xee\x5a\xe3\x00\xdb\x0c\xfc\x0d\x45\x8f\xc1\x82\xd7\xf7\x2e\x27\x00" "\x00\xa0\xbf\xc6\x7e\xd8\xfb\xfa\xbf\xb1\x01\x38\xd8\xd2\xbc\x13\x00\x00" "\xf6\x9d\xeb\xff\x70\x78\x15\xcc\x00\x84\x43\xef\xbb\x3b\xec\xef\x79\xf3" "\x8e\x5d\x5f\xff\x6f\x34\x5e\x2a\x21\x00\x00\xa0\xef\x86\x5b\x4b\x92\x16" "\xb3\x6b\x81\xc3\x91\xa6\xc5\x62\xc4\x89\xd6\xd7\x02\x14\x92\xb9\x85\x4a" "\x79\x3c\xeb\x1f\xbc\x39\x52\xf8\x4e\xb3\x3e\xd1\x7a\x66\xf2\x72\xff\x3b" "\x0c\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x87\x58\xa3\x91\x44\x03\x00\x00\x00\x38\xd0\x22\xd2\xf7\x93\xd6" "\xdd\xfc\x23\xc6\x46\xce\x0f\x6f\x1d\x1f\x38\x92\x7c\x36\xd2\x5a\x47\xc4" "\xbd\xff\xdc\xfe\xd7\xfd\xe9\x7a\x7d\x75\xa2\xb9\xfd\xe3\x67\xdb\xeb\xff" "\xce\xb6\x5f\xce\x63\x04\x03\x00\x00\x00\xd8\xaa\xd3\x4f\xef\xf4\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" "\xa0\x9f\x9e\x3e\x79\x30\xd3\x59\xf6\x33\xee\x87\xbf\x8e\x88\xd1\x6e\xf1" "\x07\x63\xa8\xb5\x1e\x8a\x42\x44\x1c\xfb\x24\x89\xc1\xe7\x9e\x97\x44\xc4" "\x40\x1f\xe2\x6f\x3e\x8c\x88\x53\xdd\xe2\x27\xcd\xb4\x62\x34\xcb\xa2\x5b" "\xfc\xa3\x39\xc6\x4f\x23\xe2\x78\x1f\xe2\xc3\x61\xf6\xa8\x79\xfc\xb9\xd1" "\xed\xfd\x97\xc6\xd9\xd6\xba\xfb\xfb\x6f\x30\x5b\xbe\xad\xde\xc7\xbf\xf4" "\xd9\xf1\x6f\xa0\xc7\xf1\xe7\xc4\x2e\x63\x9c\x7e\xfc\x4a\xa9\x67\xfc\x87" "\x11\xa7\x07\xbb\x1f\x7f\x3a\xf1\x93\x1e\xf1\xcf\xed\x32\xfe\x9f\xfe\xb8" "\xb1\xd1\x6b\x5f\xe3\xbf\x11\x63\x5d\x3f\x7f\x92\x17\x62\x95\xea\x4b\x2b" "\xa5\xda\xfa\xc6\xa5\x85\xa5\xe9\xf9\xf2\x7c\x79\x79\x72\x72\xe2\xea\xd4" "\xb5\xa9\x2b\x53\xe3\xa5\xb9\x85\x4a\x39\xfb\xd9\x35\xc6\xdf\x7f\xf4\xea" "\x97\xdb\xb5\xff\x58\x8f\xf8\xa3\x3b\xb4\xff\xfc\x2e\xdb\xff\xc5\xe3\xfb" "\x4f\xbe\xdf\x2e\x16\xba\xc5\xbf\x70\xae\xfb\xe7\xef\xa9\x1e\xf1\xd3\xec" "\xb3\xef\xa7\x59\xb9\xb9\x7f\xac\x53\xde\x6c\x97\x9f\x77\xe6\xff\x6f\x9c" "\xd9\xae\xfd\xb3\x3d\xda\xbf\xd3\xdf\xff\xc2\x2e\xdb\x7f\xf1\xf7\x7f\x7d" "\x67\x97\x0f\x05\x00\xf6\x41\x6d\x7d\x63\x71\xba\x52\x29\xaf\x2a\x28\x28" "\x28\x3c\x2b\xe4\x7d\x64\x02\x00\x00\xfa\xed\xeb\x93\xfe\xbc\x33\x01\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\xc3\x6b\x3f\x6e" "\x27\xb6\x35\xe6\x66\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\xd8\xd6\x57\x01\x00\x00" "\xff\xff\x7c\x8d\xd4\xf4", 1212); syz_mount_image(/*fs=*/0x20000040, /*dir=*/0x20000500, /*flags=*/0x4500, /*opts=*/0x20000100, /*chdir=*/0x13, /*size=*/0x4bc, /*img=*/0x20000600); memcpy((void*)0x20000180, "./bus\000", 6); syscall(__NR_open, /*file=*/0x20000180ul, /*flags=*/0x14d27eul, /*mode=*/0ul); memcpy((void*)0x20000380, "/dev/loop", 9); *(uint8_t*)0x20000389 = 0x30; *(uint8_t*)0x2000038a = 0; memcpy((void*)0x200000c0, "./bus\000", 6); syscall(__NR_mount, /*src=*/0x20000380ul, /*dst=*/0x200000c0ul, /*type=*/0ul, /*flags=*/0x1010ul, /*data=*/0ul); memcpy((void*)0x20000080, "./bus\000", 6); res = syscall(__NR_open, /*file=*/0x20000080ul, /*flags=*/0x14113eul, /*mode=*/0ul); if (res != -1) r[0] = res; syscall(__NR_write, /*fd=*/r[0], /*data=*/0x200001c0ul, /*len=*/0x208e24bul); memcpy((void*)0x20000040, ".\000", 2); res = syscall(__NR_openat, /*fd=*/0xffffff9c, /*file=*/0x20000040ul, /*flags=*/0ul, /*mode=*/0ul); if (res != -1) r[1] = res; *(uint64_t*)0x20000000 = 0; *(uint64_t*)0x20000008 = 0x100000000; *(uint64_t*)0x20000010 = 0; syscall(__NR_ioctl, /*fd=*/r[1], /*cmd=*/0xc0185879, /*arg=*/0x20000000ul); return 0; }