// https://syzkaller.appspot.com/bug?id=ebe2bbed618638b7d309da88058dce0b7bf80214 // 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 (;;) { sleep_ms(10); if (waitpid(-1, &status, WNOHANG | WAIT_FLAGS) == pid) break; if (current_time_ms() - start < 5000) continue; kill_and_wait(pid, &status); break; } } } uint64_t r[1] = {0xffffffffffffffff}; void execute_one(void) { intptr_t res = 0; if (write(1, "executing program\n", sizeof("executing program\n") - 1)) { } memcpy((void*)0x20000a00, "nilfs2\000", 7); memcpy((void*)0x20000a40, "./file0\000", 8); memcpy((void*)0x20000500, "\x00\xc1\xd1\x43\x75\x3d\x2c\x08\x3e\xe4\x22\xf8\x33\x83\xb4\x62\x02" "\xc4\xde\x2d\xe2\x91\x60\x1c\x80\x05\x24\x45\xe2\x64\xd4\x67\x9b\x97" "\x67\x8c\x14\xda\x06\xe7\x92\x45\x37\x4c\xfb\x5a\x59\xeb\xae\xff\x67" "\x0c\xaa\xdb\x56\x94\xb9\x52\xeb\x30\x67\x2a\x38\x3a\xc3\x6f\xad\xcd" "\x60\xe2\x7a\x35\xd7", 73); memcpy( (void*)0x20000ac0, "\x78\x9c\xec\xdd\xcf\x6f\x5c\x47\x1d\x00\xf0\x79\xeb\xdf\x71\x6a\xaf\x69" "\x01\xd3\xb4\x89\x81\x42\x52\x41\x1d\xc7\x31\x52\xb9\x50\xa7\xb4\x52\x4f" "\x55\x4f\x51\x24\x4e\x55\x48\xd3\x08\x37\x05\xc2\xa5\x55\x25\x52\xfe\x00" 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"\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\xe8\xaf\xda\xda\xd7\xa5\xa5\xd9\x22\x84\x37\x6f\xbf" "\xf1\xd4\x43\xef\x5f\xf9\x5d\x11\x42\x38\xd6\x28\x51\x6f\x2a\xb7\xbe\x35" "\xd2\xb4\x3d\xd7\x72\x9c\x10\x7e\x53\xac\xa7\x77\x3f\x7a\xed\x7c\x73\xfa" "\x71\x4c\x8b\xb0\x18\x8a\x50\x34\xf6\x87\x67\xef\x34\x6a\x9a\x0c\x21\x5c" "\x0d\x73\xe1\x9d\x50\x0f\xb3\xd7\xeb\xe3\xb7\xde\x7e\xe6\xf6\x8d\xe5\xe3" "\x67\xcf\x3d\x77\xee\xc9\x5d\xfc\x15\x84\xf5\x76\x01\x00\x00\xc0\xc1\xf5" "\xff\x00\x00\x00\xff\xff\x29\x40\x3a\xbb", 2548); syz_mount_image(/*fs=*/0x20000a00, /*dir=*/0x20000a40, /*flags=MS_I_VERSION|MS_NOEXEC|MS_NOATIME*/ 0x800408, /*opts=*/0x20000500, /*chdir=*/1, /*size=*/0x9f4, /*img=*/0x20000ac0); memcpy((void*)0x20000000, "./bus\000", 6); syscall(__NR_open, /*file=*/0x20000000ul, /*flags=O_NOFOLLOW|O_NOCTTY|O_NOATIME|O_CREAT|O_RDWR*/ 0x60142ul, /*mode=*/0ul); memcpy((void*)0x20000380, "/dev/loop", 9); *(uint8_t*)0x20000389 = 0x30; *(uint8_t*)0x2000038a = 0; memcpy((void*)0x20000140, "./bus\000", 6); syscall(__NR_mount, /*src=*/0x20000380ul, /*dst=*/0x20000140ul, /*type=*/0ul, /*flags=MS_BIND*/ 0x1000ul, /*data=*/0ul); memcpy((void*)0x20000000, "./bus\000", 6); res = syscall(__NR_open, /*file=*/0x20000000ul, /*flags=*/0ul, /*mode=*/0ul); if (res != -1) r[0] = res; *(uint64_t*)0x20001180 = 0; *(uint64_t*)0x20001188 = 0; *(uint64_t*)0x20001190 = 0; *(uint64_t*)0x20001198 = 0; *(uint64_t*)0x200011a0 = 0x1718; *(uint32_t*)0x200011a8 = 0; *(uint32_t*)0x200011ac = 0; *(uint32_t*)0x200011b0 = 0; *(uint32_t*)0x200011b4 = 0; memcpy((void*)0x200011b8, "\xef\x35\x9f\x41\x3b\xb9\x38\x52\xf7\xd6\xd1\xce\x5d\x29\xc3\xee\x5e" "\x5c\xa9\x00\x0f\x7c\x41\x49\x9d\xc2\xaa\xc6\x3a\x4b\x78\xc6\x60\xe6" "\x77\xdf\x70\x19\x08\xb9\xaa\xa3\xf6\xa0\x04\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64); memcpy((void*)0x200011f8, "\x03\x6c\x47\xc6\x78\x08\x20\xd1\xcb\xf7\x89\x6d\xe1\xfd\xcf\x33\x52" "\x63\xbd\xbc\xef\x01\x00\xa1\x97\xfc\xe4\x7d\xdf\xdd\x75\x3a\xbd\x95" "\x01\xce\x72\x1b\x6a\xe9\xb4\x96\x00\x00\x2a\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x18\xc9\x00\x00\x00", 64); memcpy((void*)0x20001238, "\xb7\x32\x67\x36\x18\x1c\x20\x82\x20\x00\x00\x00\xb9\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\xf0\xff\xff\xff\xff\xf2\xff\x00\x00\x00", 32); *(uint64_t*)0x20001258 = 0; *(uint64_t*)0x20001260 = 0; syscall(__NR_ioctl, /*fd=*/r[0], /*cmd=*/0x4c04, /*arg=*/0x20001180ul); memcpy((void*)0x20000180, "msdos\000", 6); memcpy((void*)0x20000100, ".\000", 2); *(uint32_t*)0x20002d80 = -1; *(uint32_t*)0x20002d84 = -1; *(uint8_t*)0x20002d88 = -1; sprintf((char*)0x20002d89, "%020llu", (long long)-1); sprintf((char*)0x20002d9d, "%020llu", (long long)-1); sprintf((char*)0x20002db1, "%023llo", (long long)-1); sprintf((char*)0x20002dc8, "%020llu", (long long)0); memcpy( (void*)0x20002ddc, "\x9a\x7f\x40\xad\x4c\x71\x45\x90\x3a\x86\x8b\x90\x20\xe1\xe8\x89\x9e\xd5" "\x74\x7d\xb2\x30\x04\xfc\x9d\x24\x89\x00\xab\xca\xa6\xb0\x65\xcf\x08\x00" "\x93\x0a\x71\xdc\xd8\xb8\x95\x5d\x93\xc7\x8b\x9d\x4e\x5e\x06\xd8\xd5\xc9" "\xac\x9b\x75\xd1\x77\x75\x4d\x6e\xba\x23\xe6\xd2\xbe\x54\x6c\x0d\xfe\xcd" "\xf6\x1b\xaf\x73\x29\x50\xa5\x72\x9c\x01\xfb\xdc\x11\xe3\x6c\xb4\x11\xbe" "\x20\x0a\x91\x35\x65\x7a\xcd\x97\xd2\x1e\xe4\x6a\xac\x31\x3e\xbd\xdd\xd9" "\x26\x5a\xf1\x65\x58\xdd\x3e\x5b\xa4\x83\x66\x59\xa6\xab\xfe\x08\xaa\xd8" "\x42\x76\xac\xf9\x49\xbd\xaa\x34\xbd\xf7\xf7\xb2\xdf\xb2\xfe\x8b\x9d\x6d" "\x22\x5d\xce\xce\xbe\xb6\xe1\x5f\x64\x99\x94\x72\x88\x42\xbd\x99\xfc\x94" "\x89\x7d\x24\x31\x5a\xc2\xd1\x7b\xf6\xc2\xac\xfb\xfa\x84\x64\xd8\x0f\x36" "\x30\x4f\x88\xb9\x06\xb7\x8a\xb3\x59\xbe\x34\x79\xdb\x5b\x0e\x75\x55\xf0" "\x44\x16\x80\x7c\x22\x02\xd6\x55\x1f\x24\x25\x44\x0b\xe7\x41\xdb\xe0\x53" "\xe0\xbf\xeb\x84\x56\x23\xe7\x22\xa9\x29\x38\x43\xf1\xcf\x0a\x71\x11\x9d" "\xca\xdf\x7e\x35\x3a\xf4\xda\x52\xae\xd3\x08\x6d\x6e\x5a\x09\x57\x74\x24" "\x8b\xe9\xa1\xb1\x41\x8d\xec\x1c\x03\xa2\xcb\x0e\xce\x08\x40\xeb\xea\xaf" "\x7b\x67\x86\x7d\xa4\x59\x43\xb7\x00\xe2\xd6\xda\xd7\x75\xae\x6f\x33\xe5" "\x5a\xa8\x6c\xa8\x4c\x33\x6c\x91\xe3\xb7\xd7\x22\x4f\x7a\x9a\x10\xd5\xb4" "\x5a\x6c\xe0\x76\x9d\x87\x54\x15\xbe\xa1\x36\xb5\x50\x8e\x5e\x0a\x88\x29" "\x07\x92\xda\x3b\x11\xb2\x28\x4a\x3d\x75\x7c\x30\x1c\xec\x78\xb5\x5d\x3f" "\xcf\xa0\x73\x61\x5c\xcb\x08\x9f\x66\xc5\xb9\xa5\xc8\x4f\x6c\x1b\xb7\x8c" "\x33\x70\xc4\x68\x7e\xab\x26\x07\x11\xfa\x05\x52\x56\x87\xc7\x70\x9e\x15" "\xcd\xde\xa0\x61\xf7\x07\x98\xcb\xf9\x40\xad\x92\x9e\xb8\x0f\x33\xad\x8b" "\xb4\xfc\xd3\x22\xdd\x05\x58\xf1\x11\xd7\xd0\x13\x51\x14\x79\x76\xb4\x25" "\xa2\x7e\x57\x34\x02\x49\x00\x55\x05\x4c\xf3\xd8\x0b\xeb\xde\x6a\x89\xf3" "\x08\x61\x70\x63\x37\x40\xf0\x87\x80\xaa\xc3\xa7\x3f\x17\xea\xed\xa8\xde" "\xb6\x42\xc2\x88\x79\x62\x59\x6b\x4d\x78\xc0\xff\xff\xb2\x8d\x0e\x64\x07" "\x3b\x06\x41\xf8\x9c\xf8\x3a\x69\xaf\xaa\xea\x03\xba\x60\x70\x83\x8f\xdb" "\xda\xcc\xb8\x16\x30\xa6\xfd\xaa\x77\xfc\x10\x14\x60\x13\xb9\xfd\x79\xe9" "\x65\xa3\x20\xda\xf8\x1c\x1a\x51\xf0\x32\xa3\xf4\x62\xf2\x74\x0e\x57\x9e" "\xb1\x16\xca\xd8\x0b\x4e\x23\x33\x26\xbf\x94\xfe\xa5\x21\x84\x51\x7a\xcc" "\xf6\x08\xb1\xfb\xfb\x39\x59\x42\x86\x98\x41\xb9\xca\x0f\x31\x4b\xef\xf6" "\xb2\xdc\x0a\x74\xd7\x59\x90\x12\x27\x4b\x24\x77\x5f\x03\x82\xe7\x29\x07" "\xc1\xf0\xc5\x71\xb9\x94\xf0\x48\xc0\x26\x6f\xeb\x77\x5d\x89\x3f\xec\x84" "\xe5\x73\x3c\xd6\x6a\x96\xcd\x45\xb6\x0f\x63\x74\x3b\x17\xb0\x5d\x99\xc4" "\x27\xa2\xd0\x0a\x27\xfe\xf1\x7c\xad\xf1\x28\x05\x9a\x2e\x22\x7b\x80\x70" "\x17\x55\xb0\xbc\x70\x6f\x32\x25\x5c\x8c\xd6\x19\xfa\x99\x5c\xc7\x64\x9f" "\x28\x33\x73\x61\xa6\x2c\xff\x46\x66\x9f\xa4\xcf\x09\x5a\x2d\x14\x89\x87" "\xa9\xfa\xfa\x6e\x1f\xb9\xf5\x9b\x5a\xc5\xff\x10\xa4\xc6\x2e\x01\x87\xa3" "\xc7\x5a\x98\x3f\x7f\x52\x11\x14\x2c\x6c\x09\x17\x0a\x13\xe2\x9c\x20\x44" "\xe5\x56\x8b\xda\x80\x55\xce\xe4\x72\x2e\x44\x5e\x83\xea\x01\x30\x7c\x42" "\xcb\xe6\x3a\x5b\xc5\x29\xe1\x20\x0e\x58\x74\xf7\x50\x02\x75\xab\xac\xd6" "\xcc\x0e\x3b\xf8\xfd\x38\xab\x7b\xab\x39\xf5\x4d\x18\x0d\x60\x89\x2e\x2e" "\x3a\x71\x3a\x3e\x65\x4c\x89\xb8\xe9\xba\x44\x74\x90\x99\x91\x84\x45\x14" "\xc0\x4b\x65\x5c\x66\xcc\xd6\xf2\xa1\x7e\x29\xff\x69\xd3\x43\xeb\xac\x7a" "\xc5\xe1\x51\x0a\xd4\xff\x52\xe6\xa9\x32\xa9\x7b\xb0\xd8\x14\x25\x9d\xa6" "\x54\x50\x22\x15\x2d\xd6\x3f\x06\x21\x9a\x1d\x66\xec\x22\x78\xb6\x94\x87" "\x6e\xd6\x19\x5b\x05\x43\xb8\xc9\x28\x9b\x84\x38\xe8\xee\x57\xdd\x38\xbc" "\xdb\x04\x5a\x6f\xc4\xce\xde\x28\xef\xfa\xa0\x35\x4a\xfb\xd4\x19\x0f\xcb" "\xcc\xd9\xa0\xe9\x15\x08\xe4\x39\x9e\x0e\x30\xa0\xbf\xde\xdc\xc1\x94\x54" "\xb6\xdd\x7c\x27\x85\xa6\xe4\xfe\x74\xa0\xec\xe1\xd6\x83\xad\x07\xd7\x6e" "\xaf\xec\x02\xfb\x0d\x88\xde\xbf\xea\xcd\x35\x31\x41\x31\x85\xda\x0f\xfa" "\x4f\xb9\xb5\xe6\xd5\xa9\x16\xf7\xbb\x5d\x51\xef\xc8\xab\x61\xe4\x95\x3f" "\xc6\xb2\xd1\xe6\x70\x76\x9f\x3c\xa5\x6d\x51\xb8\x04\xce\xb1\x18\x27\x8a" "\xcc\x90\x42\x2e\x1f\x51\xe4\x48\xa2\x7d\x2f\xe4\xf9\x3c\x88\xcf\x7c\x61" "\x48\x47\x4b\xf6\x50\x90\x2d\xd6\xdd\x96\x54\x10\x44\x11\x3d\x24\x4c\xf9" "\x38\x15\x0e\xc4\x26\xe7\xed\x63\xe1\xf1\x53\xbb\xe3\x28\xf4\x23\x25\x52" "\xb1\x04\xc8\xde\xe6\x0b\x0c\x4e\x4c\x25\xf2\x60\x5e\x97\xcc\x6f\x42\x63" "\xd3\x2e\x83\x40\xbe\x2d\x16\x71\x37\x68\x23\x73\xae\x4c\xd5\x01\xfd\xc9" "\xc5\x35\x9b\x40\xf5\x28\x03\xa5\xe4\xc0\xe0\x4a\x5d\xe0\x41\x2c\x5c\xbd" "\x4d\x05\xe6\x13\x5a\x12\x09\xd4\xb2\xdf\xf5\x0d\x39\xe4\x81\xf1\xd1\xb0" "\x1e\xd7\x10\x04\xfb\x0c\x18\xe7\x36\xaf\x8a\xb1\x76\xf8\x33\xa4\x39\xa8" "\x5c\x91\x32\xe6\xd2\x29\x6f\x66\x57\x71\xc6\xa2\x84\xea\xdc\x08\xc9\x4f" "\xfa\x52\x0d\xcc\x37\xfd\x64\x26\xc1\x52\x36\x46\x99\x51\x4b\x15\xd4\xdf" "\x67\x32\xff\xf3\x98\x34\xe8\xba\x29\x68\x8b\x19\xdb\x27\xa9\x70\xd9\xd7" "\xfb\xee\x97\x3c\x76\xbe\xe0\x4f\xb6\x16\x49\x63\x96\x9e\xbd\xe0\xf7\x85" "\x60\x67\x81\xd6\x37\x26\x73\x6d\x8b\x60\xa7\x13\xd5\xf7\x22\x07\xa2\x3f" "\x6f\x00\x42\x0f\xdf\x24\xd1\x4c\x06\x9f\x36\xa7\xe2\x36\x62\x04\x81\xcc" "\x7a\x63\x85\x7c\xc1\x35\x5b\xac\x8d\x4f\x9a\x3f\x32\x78\x5a\xd4\xd9\xd8" "\x17\x19\x07\x7a\x81\x6b\x33\xb9\x80\x06\xc3\x22\xee\x47\x3a\xa9\xf8\xf8" "\x3f\xae\x86\xa4\xd4\x21\x10\x4b\x29\x8a\x9e\x42\x35\x7c\x44\xb7\x73\xe3" "\x50\x4b\x3f\x9e\xb5\xb2\x93\x30\x41\x1b\x77\x6b\x78\xfd\xb6\xdd\x97\x13" "\xdd\x1a\xee\x0c\xc9\xc7\xee\x8b\xd2\x3a\x50\xd4\xc8\xba\xba\xf6\xd7\x4b" "\xc2\x53\x77\x00\x9a\x8c\x57\xc9\x41\xf8\x0e\x58\xac\x08\xc9\x3a\x27\x56" "\x56\xcb\xad\x38\x64\xdf\x9e\x79\x13\x05\xd6\x61\x03\xab\x30\x98\x3b\x07" "\x55\x3e\xde\x5b\x5d\x5b\x0a\xab\x15\x7f\x80\x5e\xb6\xc1\x1c\x75\xdd\x7f" "\x29\x7c\x2c\xc9\x11\x05\x51\x13\x1a\x79\x71\x64\xde\xc4\x22\xb1\x37\x99" "\xf1\xc2\x61\x46\x4c\x76\x5a\x62\xc2\x01\xeb\x9c\x86\x86\xee\xe9\x46\x42" "\xd5\x9f\x42\x9c\xd1\x37\xcb\xa0\xd1\xa8\x12\x6d\xcd\xfc\x28\xea\x5c\x20" 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"\x21\x79\x77\x1d\xa2\x1c\xd6\x64\x05\xb9\x97\x36\x48\xbd\x04\x7a\x51\x6d" "\x1c\xf9\x02\xfa\x1f\x0f\xcd\xcb\xc3\xf4\xc1\xf2\x0f\xc2\x2f\x9a\x7e\x9f" "\x4c\x3a\x52\x57\x63\x99\x60\x4c\x46\xf8\x3e\xde\x44\xf5\x42\xd0\x6d\x54" "\xe6\xe8\xa1\xe6\x93\xa2\xcf\xcb\xb1\x6c\x17\x8d\x1b\xac\xe9\x76\x13\x3e" "\x72\xcc\x45\x33\xbd\x02\xb1\xc4\xec\x2c\xc2\x20\x97\x43\x5a\xff\x5a\x68" "\x2c\xa7\x22\x74\x14\x89\x54\x50\x83\x15\x60\xfa\x68\x24\x93\xf4\x81\x4c" "\xe8\xfb\xdb\x19\x0f\x8c\xe2\xb5\x33\xed\x95\x82\x63\x85\x11\xbd\xa9\x3a" "\xea\xe5\xd0\x69\x0f\x74\x5b\x78\x8d\xb6\x22\x86\x4b\xa3\xfb\x60\x95\x2f" "\x11\x94\x27\xfb\xe6\x67\x54\xc5\xc0\x38\xc5\xfb\x2c\xb8\x7c\x32\x6d\x65" "\x86\x2e\x35\x3c\x14\x95\x0b\xd1\xfa\x7c\x70\xe3\x63\x23\xe9\xcf\x90\xc8" "\x1f\x62\x75\xe5\x9c\x79\x26\xac\xac\x15\x60\xa0\xb6\xbb\xc7\xa8\x50\x81" "\x7f\x2e\xff\xa1\x9d\x48\x53\x15\xa2\x19\xd4\x9e\x29\x3f\x87\x12\x78\x29" "\x4d\x02\x76\x5c\xf7\x2c\xaa\x2f\x43\x8d\xe3\x33\x7e\xd2\x05\xbf\x68\xff" "\x6d\xda\xaa\x5e\x4b\x80\xde\x5f\xba\x02\x2d\xfc\xf9\xcf\x07\x4a\x31\x96" "\x78\xdf\x11\xeb\x77\xb3\xef\x66\xe5\x12\xb6\x7b\xa5\x18\x22\x65\xa6\x0e" "\xaf\x45\x76\x91\xe9\x73\xd2\x3c\xba\xf6\x00\x05\x37\xf8\x86\x69\x50\x74" "\xeb\xb6\x16\xf9\xcd\xad\x9d\xe7\xc6\xfe\x9e\xcf\xbd\x13\xd5\x37\xd6\x4c" "\x34\xa7\xc9\x0c\xa5\x6b\x50\xe6\x0d\x6a\x70\x67\xe3\x91\xe6\x35\x61\x79" "\x3e\xdf\x6e\xd3\xc2\xee\xb8\x55\x59\x09\xa5\x9c\xe7\x3d\xa1\xf0\x96\xd4" "\x1f\xb4\x2d\xe4\x44\x94\x12\x83\x24\xa9", 4096); *(uint8_t*)0x20003ddc = -1; sprintf((char*)0x20003ddd, "%023llo", (long long)-1); syz_mount_image( /*fs=*/0x20000180, /*dir=*/0x20000100, /*flags=MS_I_VERSION|MS_PRIVATE|MS_SYNCHRONOUS|MS_STRICTATIME|MS_REMOUNT|MS_RELATIME|0x240c*/ 0x1a4243c, /*opts=*/0x20002d80, /*chdir=*/0, /*size=*/0, /*img=*/0x20000000); } 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); const char* reason; (void)reason; loop(); return 0; }