// https://syzkaller.appspot.com/bug?id=dacdd83da50d42f90f00ea4b3c264efb31070b26 // autogenerated by syzkaller (https://github.com/google/syzkaller) #define _GNU_SOURCE #include <dirent.h> #include <endian.h> #include <errno.h> #include <fcntl.h> #include <setjmp.h> #include <signal.h> #include <stdarg.h> #include <stdbool.h> #include <stddef.h> #include <stdint.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <sys/ioctl.h> #include <sys/mman.h> #include <sys/mount.h> #include <sys/prctl.h> #include <sys/stat.h> #include <sys/syscall.h> #include <sys/types.h> #include <sys/wait.h> #include <time.h> #include <unistd.h> #include <linux/loop.h> #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*)0x400000000000, "hfsplus\000", 8); memcpy((void*)0x400000002380, "./bus\000", 6); memcpy( (void*)0x400000000740, "\x78\x9c\xec\xdd\x4b\x6c\x1c\x67\x1d\x00\xf0\xff\xac\xd7\xeb\x5d\x03\xa9" "\xd3\xa6\x49\x41\x91\xba\x6a\xa4\x82\xb0\x48\xec\x18\x17\xcc\x85\x80\x10" "\xf8\x50\xa1\xaa\x1c\x38\xaf\x52\xa7\xb1\xbc\x71\x2b\x7b\x8b\x9c\x08\x11" "\x87\xc7\x9d\x43\x0f\x88\x53\x39\xe4\x56\x71\x40\xe5\x1e\x09\xce\x54\x95" "\x50\x25\x4e\x3e\x70\xa8\x84\xd4\x03\x3d\xf9\x80\xb4\x68\x66\x67\x1f\xf6" "\xae\x77\xd7\xf1\x13\xfa\xfb\x59\x33\xf3\xcd\x7c\xcf\xf9\xcf\xce\xcc\x3e" "\x64\x4d\x00\x9f\x5b\xcb\xb3\x51\x7c\x12\x49\x2c\xcf\xbe\xba\x95\xae\xef" "\xfc\xe3\xdf\xcd\x4c\x2b\xbb\x1e\x11\xa5\x88\x28\x44\x14\x5b\x8b\x48\xd6" "\xf3\xaa\x5f\xbc\x1a\xb7\xd2\xe5\x97\xd3\x8d\xf9\xb6\xe4\xa0\x7e\xde\x5d" "\x5d\x7a\xfd\xe3\xcf\x76\x3e\x69\xad\x15\xf3\x29\x2b\x9f\x0c\xab\x37\x40" "\xa9\x7f\xd3\x76\x3e\x45\x35\x22\x26\xf2\x65\x9f\xf2\x41\x2d\x7e\xb0\xbf" "\xfb\x3d\xed\xdd\x3e\xa8\xbd\xb1\x75\xf7\x30\x0d\xd8\xb5\x7c\x19\xf1\xfb" "\x23\xb5\x0a\x47\xd6\xec\xb3\xdd\xc9\x7b\xff\xef\xd9\x7c\x58\xf5\xc3\x9c" "\xb7\xc0\x39\x95\xb4\xee\x9b\x7d\x66\x22\xa6\x07\xdc\x3a\x0b\xa7\x33\xaa" "\x93\xb3\x7d\xd6\x03\x00\x00\x00\x80\xc3\xaa\x1c\xbe\xca\x33\xbb\xb1\x1b" "\x5b\x71\xe1\x24\x86\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xff\xaf\xf2" "\xe7\xff\x27\xf9\x54\x68\xa7\xab\x91\xb4\x9f\xff\x5f\xca\xb7\x45\x9e\x3e" "\x87\x46\x3f\x08\xf1\xa3\xa9\xd6\xf2\xc9\xc9\x0f\x06\x00\x00\x00\x00\x00" "\x00\x00\x4e\xdc\x8b\xbb\xb1\x1b\x5b\x71\xa1\xbd\xde\x4c\xb2\xdf\xfc\x5f" "\xea\xf9\x8d\xff\x0b\xf1\x4e\x6c\xc6\x4a\x6c\xc4\xf5\xd8\x8a\x5a\x34\xa2" "\x11\x1b\x31\x1f\x11\x33\x3d\x0d\x95\xb6\x6a\x8d\xc6\xc6\x7c\x56\x33\xe2" "\xd2\x90\x9a\x37\xe3\xc3\xde\x9a\xa5\x88\x68\x34\x36\x6e\x1e\x3c\xc6\x5b" "\xc7\xbd\xd3\x00\x00\x00\x00\x00\x00\x00\x70\xbe\x95\x47\xe4\xaf\x4d\xf6" "\x6f\xfb\x65\x2c\x77\x7f\xff\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" "\x80\xf3\x20\x89\x98\x68\x2d\xb2\xe9\x52\x3b\x3d\x13\x85\x62\x44\x94\xdb" "\xe5\xb6\x23\x3e\x8c\x88\xd2\xd9\x8e\xf6\x50\x92\x41\x1b\x9f\x9c\xfe\x38" "\x00\x00\x00\xe0\x48\xca\x7b\x57\x93\xf2\x18\x75\x9e\x79\x18\xbb\xb1\x15" "\x17\xda\xeb\xcd\x24\xfb\xcc\x7f\x39\xfb\xbc\x5c\x8e\x77\x62\x3d\x1a\xb1" "\x1a\x8d\xa8\xc7\x4a\xbc\x91\x7f\x86\x4e\x3f\xf5\x17\x76\x1e\x2f\xd4\x77" "\x1e\x2f\xdc\x4b\xa7\xfe\x76\xbf\xf7\xe9\xa1\x86\x9e\xb5\x18\xad\xef\x1e" "\x06\xf7\xfc\x42\x56\xa2\x12\x77\x62\x35\xdb\x72\x3d\x6e\x47\x12\xcd\x4c" "\x21\x6f\xe5\x85\x9d\xc7\x0b\xe9\xf2\xde\xe0\x71\x3d\x4a\xc7\x94\x7c\x37" "\x37\x64\x34\x13\x3d\xe9\x37\xd2\xd9\x95\x0f\xb2\xf4\x6f\xf7\x7e\x8b\x50" "\x3c\xd4\x2e\x3e\xa5\xc2\x81\x39\x33\x59\xee\x64\x27\x22\x73\xf9\xd8\xd2" "\x1a\x17\xdb\x11\x18\x1c\x89\x91\x47\xa7\x38\xb4\xa7\xf9\x28\x74\xbe\xf9" "\xb9\x34\xbc\xa7\xc1\x31\x7f\x34\xa0\xcb\xc9\x6e\x72\x7a\x5f\xa9\x81\xdf" "\xdc\x9c\x89\xfd\x91\xb8\x19\x85\xce\x11\xba\x3c\x3c\x12\x11\x5f\xfd\xf3" "\xfb\x3f\xbd\x5b\x5f\x5f\xbb\x7b\x67\x73\xf6\xfc\xec\xd2\x40\x0f\x47\x96" "\xe8\x44\xe2\x9b\xed\xcb\x4c\x37\x12\x57\xc6\x8e\x44\xe5\xb8\x07\x7e\x8c" "\x26\xc7\x2c\x37\x97\xed\xfb\xf3\xad\x95\x89\x88\xe5\xf8\x61\xfc\x24\x66" "\xe3\xd3\xa9\xd7\x62\x23\x56\xe3\x67\x51\x8b\x46\xac\x54\xdb\xe5\x6b\xf9" "\xeb\x39\x9d\xcf\x0c\x8f\xd4\x47\xd3\xbd\x6b\xaf\x8d\x1a\x49\x7a\x4e\x56" "\x3b\xd7\xaf\xce\x98\xa2\x3b\xa6\x6a\xec\x19\x53\x54\xe3\x07\x59\xaa\x16" "\x2f\x65\xc7\xf4\x42\xac\x46\x12\x6f\x45\xc4\x4a\xbc\x92\xfd\xdd\x8c\xf9" "\xce\xd5\xa0\x7b\x84\x9f\x1f\xe3\xac\x2f\x8c\x71\xa5\xed\x71\xed\x6b\xd9" "\xa2\x13\xa6\x18\xf2\xda\xf8\xe3\x78\x4d\x1e\x97\x34\xae\x17\x7b\xe2\xda" "\x7b\xcd\x9d\xc9\xf2\x7a\xb7\x74\xa3\xf4\xec\xc0\x28\xb5\xef\x75\xfd\xd7" "\xc6\xf2\xe8\x9b\x4a\xf1\x2b\x79\x22\x6d\xe1\x57\x43\xef\x0f\xa7\x6d\x7f" "\x24\xe6\x7b\x22\xf1\xdc\x41\xaf\x97\x56\x48\xff\xd0\x4c\xe7\x9b\xf5\xf5" "\xb5\x8d\xbb\xb5\xb7\xc7\xec\xef\xe5\x7c\x99\x9e\x47\xbf\x39\x57\x77\x89" "\x52\x3c\x8a\x67\xa3\x9c\xef\xdc\xc5\x6c\x9e\x64\xe7\xd4\x5c\x76\xf4\x9f" "\xeb\x1c\xe7\xbd\xf1\x2a\xe5\xbf\xb8\xb4\x14\xf6\xe7\xfd\xe8\x77\x9d\x7a" "\xad\x33\xf5\xc7\x31\xb5\xef\x4c\xfd\x56\x2c\xc6\x62\x2c\x65\x2d\x5d\xce" "\x4a\x4f\xf6\xdd\xb1\xd2\xbc\x2b\x9d\x96\x7a\xf3\x16\xb2\xbc\xf4\x9d\x56" "\xb1\xf3\xc3\x4e\xef\xfb\xad\xb7\xa2\xde\x7a\x3f\x04\xc0\xf9\x36\xfd\xf5" "\xe9\x52\xe5\x5f\x95\xbf\x55\xde\xab\xfc\xba\x72\xb7\xf2\x6a\xf9\xfb\x53" "\xdf\x9e\xba\x5a\x8a\xc9\xbf\x4e\x7e\xa7\x38\x37\xf1\x72\xe1\x6a\xf2\xa7" "\x78\x2f\x7e\xd1\xfd\xfc\x0f\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x3c\xbd\xcd\xfb\x0f\xd6" "\x6a\xf5\xfa\xca\xc6\xe0\x44\x61\x70\x56\x32\xbc\x56\xad\xde\x6c\x3f\x48" "\x6c\x48\x99\x3d\x89\x24\x7f\x54\xce\x18\x85\x93\xcd\xfb\x0f\x9a\x23\x1b" "\x1c\x9e\x98\xca\x87\x77\x88\x5a\xff\x39\x6c\x5f\x0f\x63\xac\xc2\xed\xc7" "\xa8\x0d\x2d\x3c\x15\x0f\xd6\x6a\xd5\x23\xed\xf2\xf0\x44\xb2\xbd\xff\x78" "\x95\x47\x1f\x8b\xf6\x53\x9e\xc6\xe8\x22\xe9\x0b\x78\x5a\xf9\xa9\xc7\xdc" "\xee\xb9\xbb\x65\xf2\x44\xc2\x72\xb4\x44\xf5\xf8\x1a\x6c\xbf\x60\x7b\xb2" "\xc6\x7f\xf5\xfe\xf3\x4b\xad\xca\xcd\x64\xc0\xf1\x9a\x88\x88\x41\xb5\x46" "\x5c\x38\x5a\xcf\xb8\x3a\xcf\xcf\xf1\x03\x46\xb8\xd1\xb8\xf7\xf6\x8d\xcd" "\xfb\x0f\xbe\xb1\x7a\xaf\xf6\xe6\xca\x9b\x2b\xeb\x93\x8b\x8b\x4b\x73\x4b" "\x8b\xaf\x2c\xdc\xb8\xb3\x5a\x5f\x99\x6b\xcd\x7b\x2a\x9c\xca\xc3\x6f\x81" "\xd3\xd0\xfb\x76\xa2\xa3\x14\x11\x2f\x8e\xae\xeb\xe6\x0f\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x67\xe3\x34\xfe\x17\xe2\xac\xf7\x11\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xf8" "\xdf\xb6\x3c\x1b\xc5\x27\x91\xc4\xfc\xdc\xf5\xb9\x74\x7d\xe7\xf1\x42\x3d" "\x9d\xda\xe9\x6e\xc9\x62\x44\x14\x22\x22\xf9\x79\x44\xf2\x97\x88\x5b\xd1" "\x9a\x62\xa6\xa7\xb9\xe4\xa0\x7e\xde\x5d\x5d\x7a\xfd\xe3\xcf\x76\x3e\xe9" "\xb6\x55\x8c\x89\x56\xf9\x42\xc4\xf6\x81\xf5\xc6\xb3\x9d\x4f\x51\x8d\x48" "\x9b\xcd\x96\xc7\xd5\xde\xed\xd1\xed\x95\xba\xc9\xa9\x01\xd9\x49\x27\x32" "\x69\xc0\xae\xb5\x03\x07\x67\xed\xbf\x01\x00\x00\xff\xff\x35\x9b\xec" "\xde", 1800); syz_mount_image(/*fs=*/0x400000000000, /*dir=*/0x400000002380, /*flags=MS_RELATIME*/ 0x200000, /*opts=*/0x4000000023c0, /*chdir=*/0x13, /*size=*/0x708, /*img=*/0x400000000740); memcpy((void*)0x400000000040, "./bus\000", 6); res = syscall(__NR_creat, /*file=*/0x400000000040ul, /*mode=S_IXOTH|S_IWGRP|S_IRGRP|S_IWUSR*/ 0xb1ul); if (res != -1) r[0] = res; memcpy((void*)0x400000000200, "threaded\000", 9); syscall(__NR_write, /*fd=*/r[0], /*buf=*/0x400000000200ul, /*len=*/0x175d9003ul); } int main(void) { syscall(__NR_mmap, /*addr=*/0x3ffffffff000ul, /*len=*/0x1000ul, /*prot=*/0ul, /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/-1, /*offset=*/0ul); syscall(__NR_mmap, /*addr=*/0x400000000000ul, /*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=*/0x400001000000ul, /*len=*/0x1000ul, /*prot=*/0ul, /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/-1, /*offset=*/0ul); const char* reason; (void)reason; loop(); return 0; }