// https://syzkaller.appspot.com/bug?id=b30ea69cb87bce1089eefd3969b308f63c4e218c // 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, 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; } 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); *(uint16_t*)0x200001c0 = 0; sprintf((char*)0x200001c2, "0x%016llx", (long long)0); memcpy( (void*)0x200001d4, "\x00\x00\x00\x00\x00\x00\x00\x00\xf7\x00\x00\x2a\xa4\xa3\xc4\x83\xf5\xe3" "\x52\xca\x17\x28\x10\x81\x51\x66\x4f\xe1\x58\x64\xda\xc4\xe1\x2b\x3c\xf1" "\xee\xa8\x2d\x5b\xe5\xc3\xd0\x16\xd6\x0f\x9e\x28\x5b\xc9\xd2\x50\xc2\x60" "\xaf\x69\xcf\xaa\x50\x5a\x87\x85\x5a\xd7\xad\xda\x2f\xb3\x56\x74\x17\xa2" "\x49\x22\x02\x29\xac\x8b\x37\x73\x08\x92\x31\xd7\x5c\xde\x1e\xf1\x21\xf7" "\x0e\xfa\xaf\xfb\x03\x56\x56\xac\x50\xde\x39\x5e\x09\x1d\x56\x5d\xa9\xb0" "\x48\x05\xcd\x93\x80\x0e\xc1\x71\xb1\x03\x53\x20\x51\x51\x04\xfe\xde\x83" "\xe4\xf3\xc8\xa6\xa4\x43\x7f\x9a\x40\x19\x01\x0d\xa0\xbb\xc4\x6b\x26\x2f" "\x06\xc5\x1d\x56\x77\x0e\xb0\x71\xb5\xda\x8c", 155); sprintf((char*)0x2000026f, "0x%016llx", (long long)0xee00); sprintf((char*)0x20000281, "0x%016llx", (long long)-1); memcpy( (void*)0x200035c0, "\x78\x9c\xec\xdd\xcf\x6f\x14\xd7\x1d\x00\xf0\xef\xcc\x7a\xa9\x01\xd3\x35" "\x6d\x0f\x14\xa9\x14\x15\x2a\x83\x5a\xd6\x36\x16\x60\xf5\x00\x54\xaa\xca" "\x09\xa9\x2d\xbd\x53\xd7\x5e\x5b\x96\xd7\xac\xe5\x5d\x7e\xd8\x42\x95\x51" "\xff\x80\x4a\x55\xd5\x56\xea\xa9\xa7\x5e\x2a\xe5\x0f\x88\x14\xf1\x27\x44" "\x91\x90\x92\x7b\x94\xa0\x44\x51\x02\xc9\x21\x87\x24\x1b\xed\x7a\x96\x80" "\xb3\xeb\x1f\xc1\xf6\x20\xfb\xf3\x91\x86\x79\xef\xcd\xce\x7c\xbf\x0f\xb4" "\xb3\xf3\x66\x1e\xbb\x01\xec\x5b\x27\x23\xe2\x6a\x44\x14\x22\xe2\x6c\x44" "\x94\xb2\xf6\x34\x5b\xae\xb5\x2a\x2b\xab\xaf\x7b\xfa\xe4\xfe\x64\x6b\x69" "\xb5\xdf\xf8\x38\x89\x24\x6b\xeb\x1c\x2b\xc9\xd6\x87\x57\x77\x89\xfe\x88" "\xf8\xc3\xb5\x88\x3f\x27\xdf\x8e\x5b\x5f\x5a\x9e\x9b\xa8\x56\x2b\x8b\x59" "\x7d\xb8\x31\xbf\x30\x5c\x5f\x5a\x3e\x37\x3b\x3f\x31\x53\x99\xa9\xdc\x1a" "\x1b\x1b\xbd\x38\x7e\x69\xfc\xc2\xf8\xc8\xb6\xf4\x73\x30\x22\x2e\xff\xe6" "\xf1\x3f\xff\xf6\xbf\xdf\x5e\x7e\xe3\x97\x77\xdf\xbd\xf9\xe1\x99\xbf\xb4" "\xd2\x1a\xc8\xb6\x3f\xdf\x8f\xf5\x34\x4b\x5b\x8b\xbb\xda\xf5\x62\xfb\xef" "\xa2\xa3\x2f\x22\x16\xb7\x76\x98\x57\x56\x21\x5b\x17\x73\xce\x03\x00\x80" "\xcd\x69\x5d\xcb\xff\x20\x22\x7e\xd6\xbe\xfe\x2f\x45\xa1\x7d\x75\x0a\x00" "\x00\x00\xec\x25\xcd\x2b\x03\xf1\x45\x12\xd1\x04\x00\x00\x00\xf6\xac\xb4" "\x3d\x07\x36\x49\xcb\xd9\x5c\x80\x81\x48\xd3\x72\x79\x75\x0e\xef\x8f\xe2" "\x50\x5a\xad\xd5\x1b\xbf\x98\xae\xdd\xbe\x35\xb5\x3a\x57\x76\x30\x8a\xe9" "\xf4\x6c\xb5\x32\x92\xcd\x15\x1e\x8c\x62\xd2\xaa\x8f\x66\x73\x6c\x3b\xf5" "\xf3\x6b\xea\x85\x88\x38\x1a\x11\xff\x28\x1d\x6c\xd7\xcb\x93\xb5\xea\x54" "\xde\x37\x3f\x00\x00\x00\x60\x9f\x38\xbc\x66\xfc\xff\x59\xe9\x4a\xde\x29" "\x01\x00\x00\x00\x3b\x61\x30\xef\x04\x00\x00\x00\x80\x1d\x67\xfc\x0f\x00" "\x00\x00\x7b\x9f\xf1\x3f\x00\x00\x00\xec\x69\xbf\xbb\x7e\xbd\xb5\x34\x3b" "\xbf\x7f\x3d\x75\x67\xe9\xf6\x5c\xed\xce\xb9\xa9\x4a\x7d\xae\x3c\x7f\x7b" "\xb2\x3c\x59\x5b\x5c\x28\xcf\xd4\x6a\x33\xed\xef\xec\x9b\xdf\xe8\x78\xd5" "\x5a\x6d\xe1\x40\x56\xae\x37\x86\xeb\x4b\xcb\x37\xe7\x6b\xcd\x42\xe3\xe6" "\xec\x0b\x3f\x81\x0d\x00\x00\x00\xec\xa2\xa3\x3f\x7d\xf8\x4e\x12\x11\x2b" "\xbf\x3a\xd8\x5e\x5a\x0e\xe4\x9d\x14\xb0\x2b\x92\xad\xbc\xf8\xfd\x9d\xcb" "\x03\xd8\x7d\x85\xbc\x13\x00\x72\xd3\x97\x77\x02\x40\x6e\x8a\x79\x27\x00" "\xe4\x6e\xa3\xfb\x00\x3d\x27\xef\xbc\xd9\xa5\xcd\xa0\x02\x00\x00\x5e\x49" "\x43\x3f\xee\xfd\xfc\xdf\xbd\x01\xd8\xdb\xd2\xbc\x13\x00\x00\x76\x9d\xe7" "\xff\xb0\x7f\x15\x3d\xac\x83\x7d\xef\xfb\x1b\x6c\xdf\xd2\xf3\xff\xae\x9a" "\xcd\x2d\x25\x04\x00\x00\x6c\xbb\x81\xf6\x92\xa4\xe5\xec\x59\xe0\x40\xa4" "\x69\xb9\x1c\x71\xa4\xfd\xb3\x00\xc5\x64\x7a\xb6\x5a\x19\xc9\xc6\x07\x6f" "\x97\x8a\xdf\x6b\xd5\x47\xdb\x7b\x26\x5b\xfb\xbf\xc3\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xb0\x8f\x35\x9b" "\x49\x34\x01\x00\x00\x80\x3d\x2d\x22\xfd\x20\x69\x7f\x9b\x7f\xc4\x50\xe9" "\xf4\xc0\xda\xfb\x03\x07\x92\xcf\x4b\xed\x75\x44\xdc\xfd\xcf\x8d\x7f\xdd" "\x9b\x68\x34\x16\x47\x5b\xed\x9f\x3c\x6b\x6f\xfc\x3b\x6b\x3f\x9f\xc7\x1d" "\x0c\x00\x00\x00\x60\xad\xce\x38\xbd\x33\x8e\x07\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\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\xed\xf4\xf4\xc9\xfd" "\xc9\xce\xb2\x9b\x71\x3f\xfa\x75\x44\x0c\x76\x8b\xdf\x17\xfd\xed\x75\x7f" "\x14\x23\xe2\xd0\xa7\x49\xf4\x3d\xb7\x5f\x12\x11\x85\x6d\x88\xbf\xf2\x20" "\x22\x8e\x75\x8b\x9f\xb4\xd2\x8a\xc1\x2c\x8b\x6e\xf1\x0f\xe6\x18\x3f\x8d" "\x88\xc3\xdb\x10\x1f\xf6\xb3\x87\xad\xf3\xcf\xd5\x6e\xef\xbf\x34\x4e\xb6" "\xd7\xdd\xdf\x7f\x7d\xd9\xf2\xb2\x7a\x9f\xff\xd2\x67\xe7\xbf\x42\x8f\xf3" "\xcf\x91\x4d\xc6\x38\xfe\xe8\xb5\xe1\x9e\xf1\x1f\x44\x1c\xef\xeb\x7e\xfe" "\xe9\xc4\x4f\x7a\xc4\x3f\xb5\xc9\xf8\x7f\xfa\xe3\xf2\x72\xaf\x6d\xcd\xff" "\x46\x0c\x75\xfd\xfc\x49\x5e\x88\x35\xdc\x98\x5f\x18\xae\x2f\x2d\x9f\x9b" "\x9d\x9f\x98\xa9\xcc\x54\x6e\x8d\x8d\x8d\x5e\x1c\xbf\x34\x7e\x61\x7c\x64" "\x78\x7a\xb6\x5a\xc9\xfe\xec\x1a\xe3\xef\x3f\x79\xfd\xab\xf5\xfa\x7f\xa8" "\x47\xfc\xc1\x0d\xfa\x7f\x7a\x93\xfd\xff\xf2\xd1\xbd\x27\x3f\x5c\x2d\x16" "\xbb\xc5\x3f\x73\xaa\xfb\xe7\xef\xb1\x1e\xf1\xd3\xec\xb3\xef\xe7\x59\xb9" "\xb5\x7d\xa8\x53\x5e\x59\x2d\x3f\xef\xc4\xff\xdf\x3a\xb1\x5e\xff\xa7\x7a" "\xf4\x7f\xa3\x7f\xff\x33\x9b\xec\xff\xd9\xdf\xff\xf5\xbd\x4d\xbe\x14\x00" "\xd8\x05\xf5\xa5\xe5\xb9\x89\x6a\xb5\xb2\xf8\x9d\x0b\x8f\xe3\xa5\x76\xdf" "\xa8\xd0\x1f\x3b\x75\x64\x05\x05\x85\x9e\x85\xbc\xcf\x4c\x00\x00\xc0\x76" "\xfb\xe6\xa2\x3f\xef\x4c\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x60\xff\xda\x8d\xaf\x13\x5b\x1b\x73\x25\x9f\xae\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\xac\xeb\xeb\x00\x00\x00\xff\xff\xf5\xd7\xd0\x7d", 1220); syz_mount_image(/*fs=*/0x20000040, /*dir=*/0x20000500, /*flags=*/0x4500, /*opts=*/0x200001c0, /*chdir=*/0x12, /*size=*/0x4c4, /*img=*/0x200035c0); memcpy((void*)0x20000100, "./bus\000", 6); syscall(__NR_creat, /*file=*/0x20000100ul, /*mode=*/0ul); memcpy((void*)0x20001280, "/dev/loop", 9); *(uint8_t*)0x20001289 = 0x30; *(uint8_t*)0x2000128a = 0; memcpy((void*)0x20001240, "./bus\000", 6); syscall(__NR_mount, /*src=*/0x20001280ul, /*dst=*/0x20001240ul, /*type=*/0ul, /*flags=*/0x1000ul, /*data=*/0ul); memcpy((void*)0x20000400, "./bus\000", 6); res = syscall(__NR_open, /*file=*/0x20000400ul, /*flags=*/0x14103eul, /*mode=*/0ul); if (res != -1) r[0] = res; syscall(__NR_mmap, /*addr=*/0x20000000ul, /*len=*/0x600000ul, /*prot=*/0x2000002ul, /*flags=*/0x11ul, /*fd=*/r[0], /*offset=*/0ul); memcpy((void*)0x20000080, "memory.events.local\000", 20); res = syscall(__NR_openat, /*fd=*/0xffffff9c, /*file=*/0x20000080ul, /*flags=*/0x275aul, /*mode=*/0ul); if (res != -1) r[1] = res; *(uint64_t*)0x20000540 = 0; *(uint64_t*)0x20000548 = 0; *(uint64_t*)0x20000550 = 0x20000000; memset((void*)0x20000000, 132, 1); *(uint64_t*)0x20000558 = 1; *(uint64_t*)0x20000560 = 0; *(uint64_t*)0x20000568 = 0; *(uint64_t*)0x20000570 = 0; *(uint64_t*)0x20000578 = 0; syscall(__NR_writev, /*fd=*/r[1], /*vec=*/0x20000540ul, /*vlen=*/4ul); return 0; }