// https://syzkaller.appspot.com/bug?id=47918174613db46c53bdf674594b8eb5db1881c5 // 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 void use_temporary_dir(void) { char tmpdir_template[] = "./syzkaller.XXXXXX"; char* tmpdir = mkdtemp(tmpdir_template); if (!tmpdir) exit(1); if (chmod(tmpdir, 0777)) exit(1); if (chdir(tmpdir)) exit(1); } 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; } #define FS_IOC_SETFLAGS _IOW('f', 2, long) static void remove_dir(const char* dir) { int iter = 0; DIR* dp = 0; const int umount_flags = MNT_FORCE | UMOUNT_NOFOLLOW; retry: while (umount2(dir, umount_flags) == 0) { } dp = opendir(dir); if (dp == NULL) { if (errno == EMFILE) { exit(1); } exit(1); } struct dirent* ep = 0; while ((ep = readdir(dp))) { if (strcmp(ep->d_name, ".") == 0 || strcmp(ep->d_name, "..") == 0) continue; char filename[FILENAME_MAX]; snprintf(filename, sizeof(filename), "%s/%s", dir, ep->d_name); while (umount2(filename, umount_flags) == 0) { } struct stat st; if (lstat(filename, &st)) exit(1); if (S_ISDIR(st.st_mode)) { remove_dir(filename); continue; } int i; for (i = 0;; i++) { if (unlink(filename) == 0) break; if (errno == EPERM) { int fd = open(filename, O_RDONLY); if (fd != -1) { long flags = 0; if (ioctl(fd, FS_IOC_SETFLAGS, &flags) == 0) { } close(fd); continue; } } if (errno == EROFS) { break; } if (errno != EBUSY || i > 100) exit(1); if (umount2(filename, umount_flags)) exit(1); } } closedir(dp); for (int i = 0;; i++) { if (rmdir(dir) == 0) break; if (i < 100) { if (errno == EPERM) { int fd = open(dir, O_RDONLY); if (fd != -1) { long flags = 0; if (ioctl(fd, FS_IOC_SETFLAGS, &flags) == 0) { } close(fd); continue; } } if (errno == EROFS) { break; } if (errno == EBUSY) { if (umount2(dir, umount_flags)) exit(1); continue; } if (errno == ENOTEMPTY) { if (iter < 100) { iter++; goto retry; } } } exit(1); } } 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"); if (symlink("/dev/binderfs", "./binderfs")) { } } static void execute_one(void); #define WAIT_FLAGS __WALL static void loop(void) { int iter = 0; for (;; iter++) { char cwdbuf[32]; sprintf(cwdbuf, "./%d", iter); if (mkdir(cwdbuf, 0777)) exit(1); reset_loop(); int pid = fork(); if (pid < 0) exit(1); if (pid == 0) { if (chdir(cwdbuf)) exit(1); 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; } remove_dir(cwdbuf); } } uint64_t r[3] = {0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff}; void execute_one(void) { intptr_t res = 0; if (write(1, "executing program\n", sizeof("executing program\n") - 1)) { } memcpy((void*)0x20000140, "ext4\000", 5); memcpy((void*)0x20000000, "./bus\000", 6); memcpy((void*)0x200006c0, "dioread_nolock", 14); *(uint8_t*)0x200006ce = 0x2c; memcpy((void*)0x200006cf, "inode_readahead_blks", 20); *(uint8_t*)0x200006e3 = 0x3d; sprintf((char*)0x200006e4, "0x%016llx", (long long)0x40000); *(uint8_t*)0x200006f6 = 0x2c; memcpy((void*)0x200006f7, "minixdf", 7); *(uint8_t*)0x200006fe = 0x2c; *(uint8_t*)0x200006ff = 0; memcpy( (void*)0x20000ac0, "\x78\x9c\xec\xdd\xcf\x6f\x1b\x59\x1d\x00\xf0\xaf\x9d\xd8\x71\xd2\xec\x26" "\xbb\xec\x01\x10\xec\x2e\xbb\x0b\x05\x55\x75\x12\x77\x37\x5a\xed\x01\x96" "\x13\x02\xb4\x12\x62\x8f\x20\x75\x43\xe2\x46\x51\xec\x38\x8a\x9d\xd2\x84" "\x1e\xd2\x33\x57\x24\x2a\x71\x82\x23\x7f\x00\xe7\x9e\xb8\x73\x41\x70\xe3" "\x52\x0e\x48\xfc\x88\x40\x0d\x12\x07\xa3\x19\x4f\x52\x37\xb5\x9b\xa8\x49" "\xec\x28\xfe\x7c\xa4\xd1\xbc\x37\x6f\xea\xef\x7b\x4d\xe7\xbd\xfa\x9b\xc4" "\x2f\x80\x91\xf5\x76\x44\xec\x45\x44\x31\x22\x3e\x8b\x88\x99\xec\x7a\x2e" 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"\x6c\xfd\xff\xcf\x44\x67\xfd\x07\x00\xae\xb8\xd2\xb0\x3b\x00\x00\x0c\x9c" "\xf5\x1f\x00\x46\x8f\xf5\x1f\x00\x46\x8f\xf5\x1f\x00\x46\x4f\x67\xfd\x9f" "\x1c\x76\x37\x00\x80\x01\xf2\xfe\x1f\x00\x46\x8f\xf5\x1f\x00\x46\xca\x0f" "\x3e\xf9\x24\x39\xda\x07\xd9\xe7\x5f\xaf\xdc\xdd\xd9\x5e\x6f\xdc\xbd\xb9" "\x52\x6d\xae\x97\xeb\xdb\xcb\xe5\xe5\xc6\xd6\x66\x79\xb5\xd1\x58\x4d\x3f" "\xb3\xa7\x7e\xd2\xeb\xd5\x1a\x8d\xcd\x85\xf7\x63\xfb\xde\xec\x37\x37\x9b" "\xad\xb9\xe6\xce\xee\xed\x7a\x63\x7b\xa3\x75\x3b\xfd\x5c\xef\xdb\xd5\x42" "\x7a\xd7\xde\x00\x46\x06\x00\xf4\xf3\xda\x5b\x8f\xfe\x9c\x4b\x56\xe4\x8f" "\x26\xd3\x23\xba\xf6\x72\x28\x0c\xb5\x67\xc0\x45\xcb\x0f\xbb\x03\xc0\xd0" "\x8c\x0d\xbb\x03\xc0\xd0\xd8\xed\x0b\x46\xd7\x19\xde\xe3\x4b\x0f\xc0\x15" "\xd1\x63\x8b\xde\x67\x94\x7a\xfd\x82\x50\xbb\xdd\x6e\x5f\x5c\x97\x80\x0b" "\x76\xfd\x0b\xf2\xff\x30\xaa\xba\xf2\xff\x7e\x0a\x18\x46\x8c\xfc\x3f\x8c" "\x2e\xf9\x7f\x18\x5d\xed\x76\xee\xb4\x7b\xfe\xc7\x69\x6f\x04\x00\x2e\x37" "\x39\x7e\xa0\xcf\xf7\xff\x5f\xcf\xce\xbf\xcd\xbe\x39\xf0\xe3\x95\xe3\x77" "\x3c\xbc\xc8\x5e\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xc0\xe5\x76\xb8\xff\x6f\x39\xdb" "\x0b\x7c\x3a\xf2\xf9\x72\x39\xe2\x95\x88\x98\x8d\x42\xee\xce\x5a\xad\x3a" "\x1f\x11\xaf\x46\xc4\x9f\x26\x0a\x13\x49\x7d\x61\xc8\x7d\x06\x00\xce\x2a" "\xff\xb7\x5c\xb6\xff\xd7\xf5\x99\xf7\xa6\x9f\x69\x7a\xf3\xda\x51\xb1\x18" "\x11\x3f\xfd\xd5\xa7\xbf\xbc\xb7\xd4\x6a\x6d\xfd\x31\xa2\x98\xfb\xd7\xc4" "\xe1\xf5\xd6\xc3\xec\x7a\x65\xf0\xbd\x07\x00\x4e\x76\xb8\x4e\x27\xe7\x47" "\x5d\x6f\xe4\x9f\xec\xdf\x5f\x3e\x3c\x06\xd9\x9f\xbf\x7f\x3b\x22\x4a\x9d" "\xf8\x07\xfb\xc5\x38\x38\x8a\x3f\x1e\xe3\xe9\xb9\x14\x85\x88\x98\xfa\x77" "\x2e\xab\x77\xe4\xba\x72\x17\x67\xb1\xf7\x20\x22\x3e\xdf\x6b\xfc\xb9\x98" "\x4e\x73\x20\x9d\x9d\x4f\x8f\xc7\x4f\x62\xbf\x32\xd0\xf8\xf9\x67\xe2\xe7" "\xd3\xb6\xce\x39\xf9\xbb\xf8\xdc\x39\xf4\x05\x46\xcd\xa3\x64\xfe\xf9\xb8" "\xd7\xf3\x97\x8f\xb7\xd3\x73\xef\xe7\xbf\x94\xce\x50\x67\x97\xcd\x7f\xc9" "\x4b\x2d\x1f\xa4\x73\xe0\xd3\xf8\x87\xf3\xdf\x58\x9f\xf9\xef\xd4\x31\xde" "\xff\xfd\x77\x3b\xa5\xc9\xe7\xdb\x1e\x44\x7c\x71\x3c\xe2\x30\xf6\x41\xd7" "\xfc\x73\x18\x3f\xd7\x27\xfe\x7b\xa7\x8c\xff\x97\x2f\xbd\xf9\x4e\xbf\xb6" "\xf6\xaf\x23\xae\x47\xef\xf8\xdd\xb1\xe6\x5a\xf5\xcd\xb9\xe6\xce\xee\xcd" "\xb5\xfa\xd2\x6a\x75\xb5\xba\x51\xa9\x2c\x2e\x2c\xce\x7f\x78\xeb\x83\xca" "\x5c\x9a\xa3\x9e\xeb\xbf\x1a\xfc\xe3\xa3\x1b\xaf\xf6\x6b\x4b\xc6\x3f\xd5" "\x27\x7e\xe9\x84\xf1\x7f\xf5\x94\xe3\xff\xcd\xff\x3e\xfb\xd1\x57\x5e\x10" "\xff\xeb\xef\xf6\x8a\x9f\x8f\x37\x5e\x10\x3f\x59\x13\xbf\x76\xca\xf8\x4b" "\x53\xbf\x2b\xf5\x6b\x4b\xe2\xaf\xf4\x19\xff\x49\x5f\xff\x1b\x2f\x0e\xfb" "\xbd\x62\x56\x78\xfc\xd7\xdd\xe7\xb6\x0d\x07\x00\x86\xa7\xb9\xb3\xbb\xbe" "\x54\xab\x55\xb7\x14\x14\x2e\x7f\x21\xf9\x27\x7b\x09\xba\xd1\xb3\xf0\xad" "\x41\xc5\x2a\x46\xef\xa6\x9f\xbf\xdb\x79\xa6\x8f\x35\xb5\xdb\x2f\x15\xab" "\xdf\x8c\x71\x1e\x59\x37\xe0\x32\x38\x7a\xe8\x23\xe2\xbf\xc3\xee\x0c\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xd0\xd3\x20\x7e\x63\x69\xd8\x63" "\x04\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\xe0\xea\xfa\x7f\x00\x00\x00\xff\xff\xb1\x43\xcf" "\xa1", 1279); syz_mount_image( /*fs=*/0x20000140, /*dir=*/0x20000000, /*flags=MS_POSIXACL|MS_SYNCHRONOUS|MS_RELATIME|MS_NOSUID|0x80c*/ 0x21081e, /*opts=*/0x200006c0, /*chdir=*/1, /*size=*/0x4ff, /*img=*/0x20000ac0); memcpy((void*)0x20000000, "./file1\000", 8); res = syscall(__NR_openat, /*fd=*/0xffffff9c, /*file=*/0x20000000ul, /*flags=O_SYNC|O_DIRECT|O_CREAT|FASYNC|O_RDWR*/ 0x107042, /*mode=*/0); if (res != -1) r[0] = res; memcpy((void*)0x200000c0, "./file2\000", 8); res = syscall( __NR_openat, /*fd=*/0xffffff9c, /*file=*/0x200000c0ul, /*flags=O_SYNC|O_NONBLOCK|O_DIRECT|O_CREAT|O_CLOEXEC|0x2002*/ 0x187842, /*mode=S_IXOTH|S_IWOTH*/ 3); if (res != -1) r[1] = res; *(uint32_t*)0x20000240 = 0x3920e; *(uint32_t*)0x20000244 = r[0]; *(uint64_t*)0x20000248 = 0; *(uint64_t*)0x20000250 = 0; *(uint64_t*)0x20000258 = 0; *(uint64_t*)0x20000260 = 0; syscall(__NR_ioctl, /*fd=*/r[1], /*cmd=*/0xc028660f, /*arg=*/0x20000240ul); memcpy((void*)0x20000080, "./file1\000", 8); res = syscall(__NR_creat, /*file=*/0x20000080ul, /*mode=S_IXGRP|S_IRGRP*/ 0x28ul); if (res != -1) r[2] = res; memcpy((void*)0x20000200, "threaded\000", 9); syscall(__NR_write, /*fd=*/r[2], /*buf=*/0x20000200ul, /*len=*/0xf642e7eul); memcpy((void*)0x20000080, "./bus\000", 6); syscall(__NR_creat, /*file=*/0x20000080ul, /*mode=*/0ul); } 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; use_temporary_dir(); loop(); return 0; }