// https://syzkaller.appspot.com/bug?id=32bb6b1e54413e5328f301cce8f18a0e62297890 // 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 #include #include #ifndef __NR_memfd_create #define __NR_memfd_create 319 #endif static unsigned long long procid; static __thread int clone_ongoing; static __thread int skip_segv; static __thread jmp_buf segv_env; static void segv_handler(int sig, siginfo_t* info, void* ctx) { if (__atomic_load_n(&clone_ongoing, __ATOMIC_RELAXED) != 0) { exit(sig); } uintptr_t addr = (uintptr_t)info->si_addr; const uintptr_t prog_start = 1 << 20; const uintptr_t prog_end = 100 << 20; int skip = __atomic_load_n(&skip_segv, __ATOMIC_RELAXED) != 0; int valid = addr < prog_start || addr > prog_end; if (skip && valid) { _longjmp(segv_env, 1); } exit(sig); } static void install_segv_handler(void) { struct sigaction sa; memset(&sa, 0, sizeof(sa)); sa.sa_handler = SIG_IGN; syscall(SYS_rt_sigaction, 0x20, &sa, NULL, 8); syscall(SYS_rt_sigaction, 0x21, &sa, NULL, 8); memset(&sa, 0, sizeof(sa)); sa.sa_sigaction = segv_handler; sa.sa_flags = SA_NODEFER | SA_SIGINFO; sigaction(SIGSEGV, &sa, NULL); sigaction(SIGBUS, &sa, NULL); } #define NONFAILING(...) \ ({ \ int ok = 1; \ __atomic_fetch_add(&skip_segv, 1, __ATOMIC_SEQ_CST); \ if (_setjmp(segv_env) == 0) { \ __VA_ARGS__; \ } else \ ok = 0; \ __atomic_fetch_sub(&skip_segv, 1, __ATOMIC_SEQ_CST); \ ok; \ }) 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 thread_start(void* (*fn)(void*), void* arg) { pthread_t th; pthread_attr_t attr; pthread_attr_init(&attr); pthread_attr_setstacksize(&attr, 128 << 10); int i = 0; for (; i < 100; i++) { if (pthread_create(&th, &attr, fn, arg) == 0) { pthread_attr_destroy(&attr); return; } if (errno == EAGAIN) { usleep(50); continue; } break; } exit(1); } typedef struct { int state; } event_t; static void event_init(event_t* ev) { ev->state = 0; } static void event_reset(event_t* ev) { ev->state = 0; } static void event_set(event_t* ev) { if (ev->state) exit(1); __atomic_store_n(&ev->state, 1, __ATOMIC_RELEASE); syscall(SYS_futex, &ev->state, FUTEX_WAKE | FUTEX_PRIVATE_FLAG, 1000000); } static void event_wait(event_t* ev) { while (!__atomic_load_n(&ev->state, __ATOMIC_ACQUIRE)) syscall(SYS_futex, &ev->state, FUTEX_WAIT | FUTEX_PRIVATE_FLAG, 0, 0); } static int event_isset(event_t* ev) { return __atomic_load_n(&ev->state, __ATOMIC_ACQUIRE); } static int event_timedwait(event_t* ev, uint64_t timeout) { uint64_t start = current_time_ms(); uint64_t now = start; for (;;) { uint64_t remain = timeout - (now - start); struct timespec ts; ts.tv_sec = remain / 1000; ts.tv_nsec = (remain % 1000) * 1000 * 1000; syscall(SYS_futex, &ev->state, FUTEX_WAIT | FUTEX_PRIVATE_FLAG, 0, &ts); if (__atomic_load_n(&ev->state, __ATOMIC_ACQUIRE)) return 1; now = current_time_ms(); if (now - start > timeout) return 0; } } 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"); } else if (strncmp(fs, "gfs2", 4) == 0 && (strstr(opts, "errors=panic") || strstr(opts, "debug"))) { strcat(opts, ",errors=withdraw"); } 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"); } struct thread_t { int created, call; event_t ready, done; }; static struct thread_t threads[16]; static void execute_call(int call); static int running; static void* thr(void* arg) { struct thread_t* th = (struct thread_t*)arg; for (;;) { event_wait(&th->ready); event_reset(&th->ready); execute_call(th->call); __atomic_fetch_sub(&running, 1, __ATOMIC_RELAXED); event_set(&th->done); } return 0; } static void execute_one(void) { if (write(1, "executing program\n", sizeof("executing program\n") - 1)) { } int i, call, thread; for (call = 0; call < 9; call++) { for (thread = 0; thread < (int)(sizeof(threads) / sizeof(threads[0])); thread++) { struct thread_t* th = &threads[thread]; if (!th->created) { th->created = 1; event_init(&th->ready); event_init(&th->done); event_set(&th->done); thread_start(thr, th); } if (!event_isset(&th->done)) continue; event_reset(&th->done); th->call = call; __atomic_fetch_add(&running, 1, __ATOMIC_RELAXED); event_set(&th->ready); event_timedwait(&th->done, 50 + (call == 0 ? 4000 : 0) + (call == 5 ? 4000 : 0) + (call == 8 ? 4000 : 0)); break; } } for (i = 0; i < 100 && __atomic_load_n(&running, __ATOMIC_RELAXED); i++) sleep_ms(1); } 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[2] = {0xffffffffffffffff, 0xffffffffffffffff}; void execute_call(int call) { intptr_t res = 0; switch (call) { case 0: // syz_mount_image$ext4 arguments: [ // fs: ptr[in, buffer] { // buffer: {65 78 74 34 00} (length 0x5) // } // dir: ptr[in, buffer] { // buffer: {2e 2f 66 69 6c 65 32 00} (length 0x8) // } // flags: mount_flags = 0x404 (8 bytes) // opts: ptr[in, fs_options[ext4_options]] { // fs_options[ext4_options] { // elems: array[fs_opt_elem[ext4_options]] { // fs_opt_elem[ext4_options] { // elem: union ext4_options { // max_batch_time: fs_opt["max_batch_time", fmt[hex, int32]] { // name: buffer: {6d 61 78 5f 62 61 74 63 68 5f 74 69 6d 65} // (length 0xe) eq: const = 0x3d (1 bytes) val: int32 = 0x4 // (18 bytes) // } // } // comma: const = 0x2c (1 bytes) // } // fs_opt_elem[ext4_options] { // elem: union ext4_options { // max_batch_time: fs_opt["max_batch_time", fmt[hex, int32]] { // name: buffer: {6d 61 78 5f 62 61 74 63 68 5f 74 69 6d 65} // (length 0xe) eq: const = 0x3d (1 bytes) val: int32 = 0x2 // (18 bytes) // } // } // comma: const = 0x2c (1 bytes) // } // fs_opt_elem[ext4_options] { // elem: union ext4_options { // debug_want_extra_isize: fs_opt["debug_want_extra_isize", // fmt[hex, int32]] { // name: buffer: {64 65 62 75 67 5f 77 61 6e 74 5f 65 78 74 // 72 61 5f 69 73 69 7a 65} (length 0x16) eq: const = 0x3d (1 // bytes) val: int32 = 0x6a (18 bytes) // } // } // comma: const = 0x2c (1 bytes) // } // fs_opt_elem[ext4_options] { // elem: union ext4_options { // user_xattr: buffer: {75 73 65 72 5f 78 61 74 74 72} (length // 0xa) // } // comma: const = 0x2c (1 bytes) // } // fs_opt_elem[ext4_options] { // elem: union ext4_options { // errors_remount: buffer: {65 72 72 6f 72 73 3d 72 65 6d 6f 75 // 6e 74 2d 72 6f} (length 0x11) // } // comma: const = 0x2c (1 bytes) // } // fs_opt_elem[ext4_options] { // elem: union ext4_options { // nombcache: buffer: {6e 6f 6d 62 63 61 63 68 65} (length 0x9) // } // comma: const = 0x2c (1 bytes) // } // } // common: array[fs_opt_elem[fs_options_common]] { // } // null: const = 0x0 (1 bytes) // } // } // chdir: int8 = 0x1 (1 bytes) // size: len = 0x42f (8 bytes) // img: ptr[in, buffer] { // buffer: (compressed buffer with length 0x42f) // } // ] // returns fd_dir NONFAILING(memcpy((void*)0x200000000040, "ext4\000", 5)); NONFAILING(memcpy((void*)0x2000000001c0, "./file2\000", 8)); NONFAILING(memcpy((void*)0x2000000003c0, "max_batch_time", 14)); NONFAILING(*(uint8_t*)0x2000000003ce = 0x3d); NONFAILING(sprintf((char*)0x2000000003cf, "0x%016llx", (long long)4)); NONFAILING(*(uint8_t*)0x2000000003e1 = 0x2c); NONFAILING(memcpy((void*)0x2000000003e2, "max_batch_time", 14)); NONFAILING(*(uint8_t*)0x2000000003f0 = 0x3d); NONFAILING(sprintf((char*)0x2000000003f1, "0x%016llx", (long long)2)); NONFAILING(*(uint8_t*)0x200000000403 = 0x2c); NONFAILING(memcpy((void*)0x200000000404, "debug_want_extra_isize", 22)); NONFAILING(*(uint8_t*)0x20000000041a = 0x3d); NONFAILING(sprintf((char*)0x20000000041b, "0x%016llx", (long long)0x6a)); NONFAILING(*(uint8_t*)0x20000000042d = 0x2c); NONFAILING(memcpy((void*)0x20000000042e, "user_xattr", 10)); NONFAILING(*(uint8_t*)0x200000000438 = 0x2c); NONFAILING(memcpy((void*)0x200000000439, "errors=remount-ro", 17)); NONFAILING(*(uint8_t*)0x20000000044a = 0x2c); NONFAILING(memcpy((void*)0x20000000044b, "nombcache", 9)); NONFAILING(*(uint8_t*)0x200000000454 = 0x2c); NONFAILING(*(uint8_t*)0x200000000455 = 0); NONFAILING(memcpy( (void*)0x200000000940, "\x78\x9c\xec\xdb\xcf\x6b\x1c\x55\x1c\x00\xf0\xef\xcc\x26\xad\xfd\x65" "\x62\xa9\x3f\x9a\x56\x8d\x56\x31\xf8\x23\x69\xd2\x5a\x7b\xf0\xa2\x28" "\x78\x50\x10\xf4\x50\x8f\x31\x49\x4b\xec\xb6\x91\x26\x82\x2d\x41\xa3" "\x48\x3d\x4a\xc1\xbb\x78\x14\xfc\x0b\x3c\xe9\x45\xd4\x93\xe0\x55\xef" "\x52\x28\x92\x4b\xab\xa7\x95\xd9\x9d\x49\x76\x37\xbb\x69\x92\x6e\xb2" "\xd5\xfd\x7c\x60\x92\xf7\x66\xde\xf2\xde\x77\x67\xde\xee\x7b\xf3\x76" "\x02\xe8\x59\xc3\xd9\x9f\x24\x62\x7f\x44\xfc\x1e\x11\x03\xb5\x6c\x63" "\x81\xe1\xda\xbf\x5b\xcb\x8b\x53\x7f\x2f\x2f\x4e\x25\x51\xa9\xbc\xf5" "\x57\x52\x2d\x77\x73\x79\x71\xaa\x28\x5a\xbc\x6e\x5f\x91\xe9\x8b\x48" "\x3f\x4b\xe2\x48\x8b\x7a\xe7\x2f\x5f\x39\x3f\x59\x2e\xcf\x5c\xca\xf3" "\x63\x0b\x17\xde\x1f\x9b\xbf\x7c\xe5\xb9\xd9\x0b\x93\xe7\x66\xce\xcd" "\x5c\x9c\x38\x7d\xfa\xe4\x89\xf1\x17\x4e\x4d\x3c\xdf\x91\x38\xb3\xb8" "\x6e\x0e\x7d\x34\x77\xf4\xf0\x6b\xef\x5c\x7b\x63\xea\xcc\xb5\x77\x7f" "\xfe\x36\x29\xe2\x6f\x8a\xa3\x43\x86\xd7\x3b\xf8\x64\xa5\xd2\xe1\xea" "\xba\xeb\x40\x5d\x3a\xe9\xeb\x62\x43\xd8\x94\x52\xad\x9b\x46\x7f\xb5" "\xff\x0f\x44\x29\x56\x4f\xde\x40\xbc\xfa\x69\x57\x1b\x07\x6c\xab\x4a" "\xa5\x52\x79\xa0\xfd\xe1\xa5\x0a\xf0\x3f\x96\x44\xb7\x5b\x00\x74\x47" "\xf1\x45\x9f\xcd\x7f\x8b\x6d\x87\x86\x1e\x77\x85\x1b\x2f\xd5\x26\x40" "\x59\xdc\xb7\xf2\xad\x76\xa4\x2f\xd2\xbc\x4c\x7f\xd3\xfc\xb6\x93\x86" "\x23\xe2\xcc\xd2\x3f\x5f\x65\x5b\x6c\xcf\x7d\x08\x00\x80\x06\xdf\x67" "\xe3\x9f\x67\x5b\x8d\xff\xd2\xa8\xbf\x2f\x74\x6f\xbe\x86\x32\x18\x11" "\xf7\x45\xc4\xc1\x88\x38\x15\x11\x87\x22\xe2\xfe\x88\x6a\xd9\x07\x23" "\xe2\xa1\x4d\xd6\xdf\xbc\x48\xb2\x76\xfc\x93\x5e\xdf\x52\x60\x1b\x94" "\x8d\xff\x5e\xcc\xd7\xb6\x1a\xc7\x7f\xc5\xe8\x2f\x06\x4b\x79\xee\x40" "\x35\xfe\xfe\xe4\xec\x6c\x79\xe6\x78\xfe\x9e\x8c\x44\xff\xee\x2c\x3f" "\xbe\x4e\x1d\x3f\xbc\xf2\xdb\x17\xed\x8e\xd5\x8f\xff\xb2\x2d\xab\xbf" "\x18\x0b\xe6\xed\xb8\xde\xb7\xbb\xf1\x35\xd3\x93\x0b\x93\x77\x12\x73" "\xbd\x1b\x9f\x44\x0c\xf5\xb5\x8a\x3f\x59\x59\x09\x48\x22\xe2\x70\x44" "\x0c\x6d\xb1\x8e\xd9\xa7\xbf\x39\xda\xee\xd8\xed\xe3\x5f\x47\x07\xd6" "\x99\x2a\x5f\x47\x3c\x55\x3b\xff\x4b\xd1\x14\x7f\x21\x59\x7f\x7d\x72" "\xec\x9e\x28\xcf\x1c\x1f\x2b\xae\x8a\xb5\x7e\xf9\xf5\xea\x9b\xed\xea" "\xbf\xa3\xf8\x3b\x20\x3b\xff\x7b\x5b\x5e\xff\x2b\xf1\x0f\x26\xf5\xeb" "\xb5\xf3\x9b\xaf\xe3\xea\x1f\x9f\xb7\x9d\xd3\x6c\xf5\xfa\xdf\x95\xbc" "\xdd\xb0\xef\xc3\xc9\x85\x85\x4b\xe3\x11\xbb\x92\xd7\x6b\x8d\xae\xdf" "\x3f\xd1\x54\x6e\x62\xb5\x7c\x16\xff\xc8\xb1\xd6\xfd\xff\x60\xac\xbe" "\x13\x47\x22\x22\xbb\x88\x1f\x8e\x88\x47\x22\xe2\xd1\xbc\xed\x8f\x45" "\xc4\xe3\x11\x71\x6c\x9d\xf8\x7f\x7a\xf9\x89\xf7\xb6\x1e\xff\xf6\xca" "\xe2\x9f\xde\xd4\xf9\x5f\x4d\xec\x8a\xe6\x3d\xad\x13\xa5\xf3\x3f\x7e" "\xd7\x50\xe9\xe0\x66\xe2\xcf\xce\xff\xc9\x6a\x6a\x24\xdf\xb3\x91\xcf" "\xbf\x8d\xb4\x6b\x6b\x57\x33\x00\x00\x00\xfc\xf7\xa4\x11\xb1\x3f\x92" "\x74\x74\x25\x9d\xa6\xa3\xa3\xb5\xdf\xf0\x1f\x8a\xbd\x69\x79\x6e\x7e" "\xe1\x99\xb3\x73\x1f\x5c\x9c\xae\x3d\x23\x30\x18\xfd\x69\x71\xa7\x6b" "\xa0\xee\x7e\xe8\x78\x3e\xad\x2f\xf2\x13\x4d\xf9\x13\xf9\x7d\xe3\x2f" "\x4b\x7b\xaa\xf9\xd1\xa9\xb9\xf2\x74\xb7\x83\x87\x1e\xb7\xaf\x4d\xff" "\xcf\xfc\x59\xea\x76\xeb\x80\x6d\xe7\x79\x2d\xe8\x5d\xfa\x3f\xf4\x2e" "\xfd\x1f\x7a\x97\xfe\x0f\xbd\xab\x45\xff\xdf\xd3\x8d\x76\x00\x3b\xaf" "\xd5\xf7\xff\xc7\x5d\x68\x07\xb0\xf3\x9a\xfa\xbf\x65\x3f\xe8\x21\xe6" "\xff\xd0\xbb\xf4\x7f\xe8\x5d\xfa\x3f\xf4\xa4\xf9\x3d\x71\xfb\x87\xe4" "\x25\x24\xd6\x24\x22\xbd\x2b\x9a\x21\xb1\x4d\x89\x6e\x7f\x32\x01\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x74\xc6\xbf\x01\x00\x00\xff\xff\x50\x38\xe6\xd5", 1071)); NONFAILING(syz_mount_image(/*fs=*/0x200000000040, /*dir=*/0x2000000001c0, /*flags=MS_NODEV|MS_NOATIME*/ 0x404, /*opts=*/0x2000000003c0, /*chdir=*/1, /*size=*/0x42f, /*img=*/0x200000000940)); break; case 1: // quotactl$Q_QUOTAON arguments: [ // cmd: quota_cmd_quota_on = 0xffffffff80000201 (8 bytes) // special: ptr[in, blockdev_filename] { // union blockdev_filename { // loop: loop_filename { // prefix: buffer: {2f 64 65 76 2f 6c 6f 6f 70} (length 0x9) // id: proc = 0x0 (1 bytes) // z: const = 0x0 (1 bytes) // } // } // } // id: uid (resource) // addr: nil // ] NONFAILING(memcpy((void*)0x200000000180, "/dev/loop", 9)); NONFAILING(*(uint8_t*)0x200000000189 = 0x30 + procid * 1); NONFAILING(*(uint8_t*)0x20000000018a = 0); syscall(__NR_quotactl, /*cmd=Q_QUOTAON_GRP*/ 0xffffffff80000201ul, /*special=*/0x200000000180ul, /*id=*/(intptr_t)-1, /*addr=*/0ul); break; case 2: // mprotect arguments: [ // addr: VMA[0x3000] // len: len = 0x3000 (8 bytes) // prot: mmap_prot = 0x9 (8 bytes) // ] syscall(__NR_mprotect, /*addr=*/0x200000000000ul, /*len=*/0x3000ul, /*prot=PROT_SEM|PROT_READ*/ 9ul); break; case 3: // openat$cgroup_ro arguments: [ // fd: fd_cgroup (resource) // file: ptr[in, buffer] { // buffer: {62 6c 6b 69 6f 2e 62 66 71 2e 69 6f 5f 71 75 65 75 65 64 // 00} (length 0x14) // } // flags: const = 0x275a (4 bytes) // mode: const = 0x0 (2 bytes) // ] // returns fd NONFAILING(memcpy((void*)0x200000000180, "blkio.bfq.io_queued\000", 20)); res = syscall(__NR_openat, /*fd=*/(intptr_t)-1, /*file=*/0x200000000180ul, /*flags=*/0x275a, /*mode=*/0); if (res != -1) r[0] = res; break; case 4: // mmap arguments: [ // addr: VMA[0xb36000] // len: len = 0xb36000 (8 bytes) // prot: mmap_prot = 0xa (8 bytes) // flags: mmap_flags = 0x28011 (8 bytes) // fd: fd (resource) // offset: intptr = 0x0 (8 bytes) // ] syscall(__NR_mmap, /*addr=*/0x200000000000ul, /*len=*/0xb36000ul, /*prot=PROT_SEM|PROT_WRITE*/ 0xaul, /*flags=MAP_STACK|MAP_POPULATE|MAP_FIXED|MAP_SHARED*/ 0x28011ul, /*fd=*/r[0], /*offset=*/0ul); break; case 5: // syz_mount_image$exfat arguments: [ // fs: ptr[in, buffer] { // buffer: {65 78 66 61 74 00} (length 0x6) // } // dir: ptr[in, buffer] { // buffer: {2e 2f 66 69 6c 65 32 00} (length 0x8) // } // flags: mount_flags = 0x0 (8 bytes) // opts: ptr[inout, array[ANYUNION]] { // array[ANYUNION] { // union ANYUNION { // ANYRES16: ANYRES16 (resource) // } // union ANYUNION { // ANYRESOCT: ANYRES64 (resource) // } // union ANYUNION { // ANYRES8: ANYRES8 (resource) // } // union ANYUNION { // ANYBLOB: buffer: {b7 1f e8 4f 89 1d 03 a0 50 27 c0 e6 65 8e a9 // 4f 09 63 61 60 11 2a 47 b6 88 55 2b 72 05 1b f0 11 1d af fb e0 // ad ef 82 58 9e e2 fa c7 03 c3 1d 20 f9 8a a1 f9 76 18 73 cd 60 // 4d ab 0d 22 b4 b3 21 f4 c2 00 44 c5 a8 e0 18 b5 1e 52 34 28 14 // e4 c3 3a 7f 48 07 78 18 62 b5 24 b3 03 c6 04 20 3d 95 ef 2f aa // 04 cf d7 dd c4 f2 ed ca 0a de ae 00 88 a8 e1 69 69 e9 00 0a 6a // 9d 85 bf 9d 4e e3 33 cf 03 76 3a d6 50 6f 66 79 7f 15 4f 09 23 // a6 3f 10 6d 90 8d 1c f2 a8 84 e5 7a b6 39 50 b9 88 3c 40 44 9a // 94 84 7d f8 0c a3 9e 93 94 f8 de 07 7b fd 7f 0c 81 e7 73 15 8b // d3 3c 33 9a 0f 92 99 7d 17 2a dc de 0c 53 c9 7c ce 8a 0f 42 c8 // 62 a0 c8 8c 9a 25 cc f6 79 9b 85 da dc 24 5f 60 8d 6c b5 de d4 // 7e 4a 20 ad 82 11 32 95 2c c1 88 4e 14 73 79 41 44 bb d0 15 94 // b3 06 a0 4f c3 9f 13 20 2b 44 47 f8 bb cc c5 1a 6c 4b 55 5b 46 // a2 df 7f 0f e9 79 ef 6c 31 ef 8c 81 a8 1c 26 e7 1f 96 ea 1d 8e // d2 45 27 72 59 bd f9 70 db 1f 41 c7 5d 83 84 b6 b2 3c f4 4e 9b // 04 52 78 74 da f6 c3 4e 4d ed a0 da 67 0a dd d7 c8 f5 ea b4 41 // 09 08 51 7c 88 94 0d 2c b8 9c 30 70 20 bd e7 d7 41 6a fe bc c3 // 4c 14 32 8f f1 57 9b 05 18 bb bd 21 0c 2b df de 8f 3b 02 da 9d // 22 1e 3f 2b f1 b3 4f 6b 99 30 ce 4f f1 af c2 b1 41 87 df 37 65 // e6 b8 9b 53 d6 47 73 47 4b 4c a1 3c aa 81 00 0b a8 12 42 47 6b // 33 fc 59 37 e8 d5 6d c8 a3 5f 74 f9 21 d3 ef e5 27 b8 23 d4 7f // bb 61 dc 47 fb 49 c0 33 f2 27 3c a7 33 3f b5 80 8e 72 7b 54 fa // 24 00 05 4d 2a 90 43 7c 1b 6b ef 52 43 87 32 1c f8 06 23 7b 68 // fe b3 66 2a 6f 5d 45 9a} (length 0x1e5) // } // union ANYUNION { // ANYRES16: ANYRES16 (resource) // } // } // } // chdir: int8 = 0xfe (1 bytes) // size: len = 0x151a (8 bytes) // img: ptr[in, buffer] { // buffer: (compressed buffer with length 0x151a) // } // ] // returns fd_dir NONFAILING(memcpy((void*)0x2000000000c0, "exfat\000", 6)); NONFAILING(memcpy((void*)0x2000000001c0, "./file2\000", 8)); NONFAILING(*(uint16_t*)0x200000001e40 = 0); NONFAILING(sprintf((char*)0x200000001e42, "%023llo", (long long)-1)); NONFAILING(*(uint8_t*)0x200000001e59 = 0); NONFAILING(memcpy( (void*)0x200000001e5a, "\xb7\x1f\xe8\x4f\x89\x1d\x03\xa0\x50\x27\xc0\xe6\x65\x8e\xa9\x4f\x09" "\x63\x61\x60\x11\x2a\x47\xb6\x88\x55\x2b\x72\x05\x1b\xf0\x11\x1d\xaf" "\xfb\xe0\xad\xef\x82\x58\x9e\xe2\xfa\xc7\x03\xc3\x1d\x20\xf9\x8a\xa1" "\xf9\x76\x18\x73\xcd\x60\x4d\xab\x0d\x22\xb4\xb3\x21\xf4\xc2\x00\x44" "\xc5\xa8\xe0\x18\xb5\x1e\x52\x34\x28\x14\xe4\xc3\x3a\x7f\x48\x07\x78" "\x18\x62\xb5\x24\xb3\x03\xc6\x04\x20\x3d\x95\xef\x2f\xaa\x04\xcf\xd7" "\xdd\xc4\xf2\xed\xca\x0a\xde\xae\x00\x88\xa8\xe1\x69\x69\xe9\x00\x0a" "\x6a\x9d\x85\xbf\x9d\x4e\xe3\x33\xcf\x03\x76\x3a\xd6\x50\x6f\x66\x79" "\x7f\x15\x4f\x09\x23\xa6\x3f\x10\x6d\x90\x8d\x1c\xf2\xa8\x84\xe5\x7a" "\xb6\x39\x50\xb9\x88\x3c\x40\x44\x9a\x94\x84\x7d\xf8\x0c\xa3\x9e\x93" "\x94\xf8\xde\x07\x7b\xfd\x7f\x0c\x81\xe7\x73\x15\x8b\xd3\x3c\x33\x9a" "\x0f\x92\x99\x7d\x17\x2a\xdc\xde\x0c\x53\xc9\x7c\xce\x8a\x0f\x42\xc8" "\x62\xa0\xc8\x8c\x9a\x25\xcc\xf6\x79\x9b\x85\xda\xdc\x24\x5f\x60\x8d" "\x6c\xb5\xde\xd4\x7e\x4a\x20\xad\x82\x11\x32\x95\x2c\xc1\x88\x4e\x14" "\x73\x79\x41\x44\xbb\xd0\x15\x94\xb3\x06\xa0\x4f\xc3\x9f\x13\x20\x2b" "\x44\x47\xf8\xbb\xcc\xc5\x1a\x6c\x4b\x55\x5b\x46\xa2\xdf\x7f\x0f\xe9" "\x79\xef\x6c\x31\xef\x8c\x81\xa8\x1c\x26\xe7\x1f\x96\xea\x1d\x8e\xd2" "\x45\x27\x72\x59\xbd\xf9\x70\xdb\x1f\x41\xc7\x5d\x83\x84\xb6\xb2\x3c" "\xf4\x4e\x9b\x04\x52\x78\x74\xda\xf6\xc3\x4e\x4d\xed\xa0\xda\x67\x0a" "\xdd\xd7\xc8\xf5\xea\xb4\x41\x09\x08\x51\x7c\x88\x94\x0d\x2c\xb8\x9c" "\x30\x70\x20\xbd\xe7\xd7\x41\x6a\xfe\xbc\xc3\x4c\x14\x32\x8f\xf1\x57" "\x9b\x05\x18\xbb\xbd\x21\x0c\x2b\xdf\xde\x8f\x3b\x02\xda\x9d\x22\x1e" "\x3f\x2b\xf1\xb3\x4f\x6b\x99\x30\xce\x4f\xf1\xaf\xc2\xb1\x41\x87\xdf" "\x37\x65\xe6\xb8\x9b\x53\xd6\x47\x73\x47\x4b\x4c\xa1\x3c\xaa\x81\x00" "\x0b\xa8\x12\x42\x47\x6b\x33\xfc\x59\x37\xe8\xd5\x6d\xc8\xa3\x5f\x74" "\xf9\x21\xd3\xef\xe5\x27\xb8\x23\xd4\x7f\xbb\x61\xdc\x47\xfb\x49\xc0" "\x33\xf2\x27\x3c\xa7\x33\x3f\xb5\x80\x8e\x72\x7b\x54\xfa\x24\x00\x05" "\x4d\x2a\x90\x43\x7c\x1b\x6b\xef\x52\x43\x87\x32\x1c\xf8\x06\x23\x7b" "\x68\xfe\xb3\x66\x2a\x6f\x5d\x45\x9a", 485)); NONFAILING(*(uint16_t*)0x20000000203f = 0); NONFAILING(memcpy( (void*)0x200000000900, "\x78\x9c\xec\xdc\x0b\x98\x8e\xd5\xfa\x30\xf0\x75\xaf\xb5\x1e\x86\xa4" "\xb7\x49\x0e\xc3\xba\xd7\xfd\xf0\xa6\xc1\x32\x49\x92\x43\x42\x0e\x49" "\x92\x24\x49\x4e\x09\x49\x93\x24\x09\x89\x21\xa7\xa4\x21\x09\x39\x4e" "\x9a\x1c\x86\x90\x1c\xa6\x31\x69\x9c\xcf\x87\x9c\x93\x26\x5b\x9a\x24" "\x09\xc9\x29\x59\xdf\xc5\x6e\x6f\xbb\xaf\xfd\x6f\xef\x7d\xed\xfd\xfd" "\x7d\xd7\x9e\xfb\x77\x5d\xeb\x9a\x75\xbf\xcf\x7b\xaf\xf7\x7e\xe6\x9e" "\x6b\xde\xf5\x3c\x73\xcd\xfb\x5d\xcf\x51\xf5\x5a\xd4\xaf\xdd\x8c\x88" "\xc4\xbf\x05\xfe\xfc\x25\x49\x08\x11\x23\x84\x18\x26\x84\xb8\x4e\x08" "\x11\x08\x21\x2a\xc5\x56\x8a\xbd\x74\x3c\x9f\x82\xa4\x7f\xef\x45\xd8" "\x7f\xd6\xc3\x69\x57\xbb\x02\x76\x35\x71\xff\x73\x37\xee\x7f\xee\xc6" "\xfd\xcf\xdd\xb8\xff\xb9\x1b\xf7\x3f\x77\xe3\xfe\xe7\x6e\xdc\xff\xdc" "\x8d\xfb\xcf\x58\x6e\xb6\x6d\x76\xb1\xeb\x79\xe4\xde\xc1\xf7\xff\x73" "\x33\x7e\xff\xff\x2f\x92\x53\x7e\xf2\x57\x1b\xca\xdf\xd8\xeb\x5f\x48" "\xe1\xfe\xe7\x6e\xdc\xff\xdc\x8d\xfb\x9f\xbb\x71\xff\x73\x37\xee\x7f" "\xee\xc6\xfd\xff\xef\x57\xeb\x0f\x8e\x71\xff\x73\x37\xee\x3f\x63\xb9" "\xd9\x5f\xef\x05\x5f\xf0\xde\xff\x7f\x70\x3f\x9a\xc7\xff\xee\xb8\xda" "\x3f\x7f\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63" "\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31" "\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18" "\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c" "\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6" "\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63" "\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31" "\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x72\x87\xb3\xfe\x0a\x2d" "\x84\xf8\xcb\xfc\x6a\xd7\xc5\x18\x63\x8c\x31\xc6\x18\x63\x8c\xb1\xff" "\x1c\x9f\xf7\x6a\x57\xc0\x18\x63\x8c\x31\xc6\x18\x63\x8c\xb1\xff\xf7" "\x40\x48\xa1\x84\x16\x81\xc8\x23\xf2\x8a\x18\x91\x4f\xe4\x17\xd7\x88" "\x02\xe2\x5a\x51\x50\x5c\x27\x22\xe2\x7a\x11\x2b\x6e\x10\x85\xc4\x8d" "\xa2\xb0\x28\x22\x8a\x8a\x62\x22\x4e\x14\x17\x25\x84\x11\x28\xac\x20" "\x11\x8a\x92\xa2\x94\x88\x8a\x9b\x44\x69\x71\xb3\x88\x17\x65\x44\x59" "\x51\x4e\x38\x51\x5e\x24\x88\x5b\x44\x05\x71\xab\xa8\x28\x6e\x13\x95" "\xc4\xed\xa2\xb2\xb8\x43\x54\x11\x55\x45\x35\x51\x5d\xdc\x29\x6a\x88" "\xbb\x44\x4d\x51\x4b\xd4\x16\x77\x8b\x3a\xa2\xae\xa8\x27\xea\x8b\x7b" "\x44\x03\x71\xaf\x68\x28\xee\x13\x8d\xc4\xfd\xa2\xb1\x78\x40\x34\x11" "\x0f\x8a\xa6\xe2\x21\xd1\x4c\x3c\x2c\x9a\x8b\x47\x44\x0b\xf1\xa8\x68" "\x29\x1e\x13\xad\x44\x6b\xd1\x46\xb4\x15\xed\xfe\xc5\xfc\xbf\xe8\x2b" "\x5e\x16\xfd\x44\x7f\x91\x24\x06\x88\x81\xe2\x15\x31\x48\x0c\x16\x43" "\xc4\x50\x31\x4c\xbc\x2a\x86\x8b\xd7\xc4\x08\xf1\xba\x48\x16\x23\xc5" "\x28\xf1\x86\x18\x2d\xde\x14\x63\xc4\x5b\x62\xac\x18\x27\xc6\x8b\xb7" "\xc5\x04\x31\x51\x4c\x12\x93\xc5\x14\x31\x55\xa4\x88\x77\xc4\x34\xf1" "\xae\x48\x15\xef\x89\xe9\x62\x86\x98\x29\x66\x89\x34\x31\x5b\xcc\x11" "\xef\x8b\xb9\x62\x9e\x98\x2f\x3e\x10\x0b\xc4\x87\x62\xa1\x58\x24\x16" "\x8b\x25\x22\x5d\x7c\x24\x32\xc4\x52\x91\x29\x3e\x16\xcb\xc4\x27\x22" "\x4b\x2c\x17\x2b\xc4\x4a\xb1\x4a\xac\x16\x6b\xc4\x5a\xb1\x4e\xac\x17" "\x1b\xc4\x46\xb1\x49\x6c\x16\x5b\xc4\x56\xb1\x4d\x7c\x2a\xb6\x8b\x1d" "\x62\xa7\xd8\x25\x76\x8b\x3d\x62\xaf\xf8\x4c\xec\x13\x9f\x8b\xfd\xe2" "\x0b\x91\x2d\xbe\xfc\x17\xf3\xcf\xfc\x5f\xf9\xbd\x40\x80\x00\x09\x12" "\x34\x68\xc8\x03\x79\x20\x06\x62\x20\x3f\xe4\x87\x02\x50\x00\x0a\x42" "\x41\x88\x40\x04\x62\x21\x16\x0a\x41\x21\x28\x0c\x85\xa1\x28\x14\x85" "\x38\x88\x83\x12\x50\x02\x10\x10\x08\x08\x4a\x42\x49\x88\x42\x14\x4a" "\x43\x69\x88\x87\x78\x28\x0b\x65\xc1\x81\x83\x04\x48\x80\x0a\x70\x2b" "\x54\x84\x8a\x50\x09\x2a\x41\x65\xa8\x0c\x55\xa0\x2a\x54\x85\xea\x50" "\x1d\x6a\x40\x0d\xa8\x09\x35\xa1\x36\xd4\x86\x3a\x50\x07\xea\x41\x3d" "\xb8\x07\xee\x81\x7b\xa1\x21\x34\x84\x46\xd0\x08\x1a\x43\x63\x68\x02" "\x4d\xa0\x29\x34\x85\x66\xd0\x0c\x9a\x43\x73\x68\x01\x2d\xa0\x25\xb4" "\x84\x56\xd0\x0a\xda\x40\x1b\x68\x07\xed\xa0\x3d\xb4\x87\x0e\xd0\x01" "\x3a\x41\x27\xe8\x0c\x9d\xa1\x0b\x74\x81\x44\x48\x84\xae\xd0\x15\xba" "\x41\x37\xe8\x0e\xdd\xa1\x07\xf4\x80\x9e\xd0\x13\x7a\x41\x6f\xe8\x0d" "\x2f\xc1\x4b\xf0\x32\xbc\x0c\xfd\xa1\x8e\x1c\x00\x03\x61\x20\x0c\x82" "\x41\x30\x04\x86\xc2\x50\x78\x15\x86\xc3\x6b\xf0\x1a\xbc\x0e\xc9\x30" "\x12\x46\xc1\x1b\xf0\x06\xbc\x09\x63\xe0\x34\x8c\x85\x71\x30\x1e\xc6" "\x43\x0d\x39\x11\x26\xc1\x64\x20\x39\x15\x52\x20\x05\xa6\xc1\x34\x48" "\x85\x54\x98\x0e\x33\x60\x06\xcc\x82\x34\x98\x0d\x73\x60\x0e\xcc\x85" "\x79\x30\x0f\x3e\x80\x05\xf0\x21\x7c\x08\x8b\x60\x11\x2c\x81\x74\x48" "\x87\x0c\x58\x0a\x99\x90\x09\xcb\xe0\x0c\x64\xc1\x72\x58\x01\x2b\x61" "\x15\xac\x86\x55\xb0\x16\xd6\xc1\x5a\xd8\x00\x1b\x61\x03\x6c\x86\xcd" "\xb0\x15\xb6\xc2\xa7\xf0\x29\xec\x80\x1d\xb0\x0b\x76\xc1\x1e\xd8\x03" "\x9f\xc1\x67\xf0\x39\x7c\x0e\xc9\x90\x0d\xd9\x70\x00\x0e\xc0\x41\x38" "\x08\x87\xe0\x10\xe4\x40\x0e\x1c\x86\xc3\x70\x04\x8e\xc0\x51\x38\x0a" "\xc7\xe0\x18\x1c\x87\x13\x70\x12\x4e\xc0\x29\x38\x05\xa7\xe1\x0c\x9c" "\x85\xb3\x70\x1e\xce\xc3\x05\x78\x21\xee\x9b\xe6\x7b\xca\xac\x4f\x16" "\xf2\x12\x2d\xb5\xcc\x23\xf3\xc8\x18\x19\x23\xf3\xcb\xfc\xb2\x80\x2c" "\x20\x0b\xca\x82\x32\x22\x23\x32\x56\xc6\xca\x42\xb2\x90\x2c\x2c\x0b" "\xcb\xa2\xb2\xa8\x8c\x93\x71\xb2\x84\x2c\x21\x51\xa2\x24\x19\xca\x92" "\xb2\xa4\x8c\xca\xa8\x2c\x2d\x4b\xcb\x78\x19\x2f\xcb\xca\xb2\xd2\x49" "\x27\x13\x64\x82\xac\x20\x2b\xc8\x8a\xb2\xa2\xac\x24\x6f\x97\x95\xe5" "\x1d\xb2\x8a\xac\x2a\x3b\xba\xea\xb2\xba\xac\x21\x3b\xb9\x9a\xb2\x96" "\xac\x2d\x6b\xcb\x3a\xb2\xae\xac\x27\xeb\xcb\xfa\xb2\x81\x6c\x20\x1b" "\xca\x86\xb2\x91\x6c\x24\x1b\xcb\xc6\xb2\x89\x7c\x50\x36\x95\x03\x60" "\x08\x3c\x2c\x2f\x75\xa6\x85\x1c\x09\x2d\xe5\x28\x68\x25\x5b\xcb\x36" 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"\x92\x27\x11\x42\x28\x43\x15\xea\x30\x08\xf3\x84\x79\xc3\x98\x30\x5f" "\x98\x3f\xbc\x26\x2c\x10\x5e\x1b\x16\x0c\xaf\x0b\x23\xe1\xf5\x61\x6c" "\x78\x43\x58\x28\xbc\x31\x2c\x1c\x16\x09\x8b\x86\xc5\xc2\xb8\xb0\x78" "\x58\x22\x34\x21\x86\x36\xa4\x30\x0c\x4b\x86\xa5\xc2\x68\x78\x53\x58" "\x3a\xbc\x39\x8c\x0f\xcb\x84\x65\xc3\x72\xa1\x0b\xcb\x87\x09\xe1\x2d" "\x61\x85\xf0\xd6\xb0\x62\x78\x5b\x58\x29\xbc\x3d\xac\x1c\xde\x11\x56" "\x09\xab\x86\x8f\xde\x5f\x3d\xbc\x33\xac\x11\xde\x15\xd6\x0c\x6b\x85" "\xb5\xc3\xbb\xc3\x3a\x61\xdd\xb0\x5e\x58\x3f\xbc\x27\x6c\x10\xde\x1b" "\x36\x0c\xef\x0b\x1b\x85\xf7\x87\x15\xc3\x07\xc2\x26\xe1\x83\x61\xd3" "\xf0\xa1\xb0\x59\xf8\x70\xd8\x3c\x7c\x24\x6c\x11\x3e\x1a\xb6\x0c\x1f" "\x0b\x5b\x85\xad\xc3\x36\x61\xdb\xb0\x5d\xf8\x78\xd8\x3e\x7c\x22\xec" "\x10\x76\x0c\x3b\x85\x4f\x86\x9d\xc3\xa7\xc2\x2e\xe1\xd3\x61\x62\xf8" "\x4c\xd8\x35\x7c\xf6\x1f\x1e\x4f\x0a\x07\x84\x03\xc3\x57\xc2\x57\x42" "\xef\xef\x53\x8b\xa3\x4b\xa2\xe9\xd1\x8f\xa2\x19\xd1\xa5\xd1\xcc\xe8" "\xc7\xd1\x65\xd1\x4f\xa2\x59\xd1\xe5\xd1\x15\xd1\x95\xd1\x55\xd1\xd5" "\xd1\x35\xd1\xb5\xd1\x75\xd1\xf5\xd1\x0d\xd1\x8d\xd1\x4d\xd1\xcd\xd1" "\x2d\xd1\xad\x51\xef\xeb\xe7\x15\x0e\x9c\x74\xca\x69\x17\xb8\x3c\x2e" "\xaf\x8b\x71\xf9\x5c\x7e\x77\x8d\x2b\xe0\xae\x75\x05\xdd\x75\x2e\xe2" "\xae\x77\xb1\xee\x06\x57\xc8\xdd\xe8\x0a\xbb\x22\xae\xa8\x2b\xe6\xe2" "\x5c\x71\x57\xc2\x19\x87\xce\x3a\x72\xa1\x2b\xe9\x4a\xb9\xa8\xbb\xc9" "\x95\x76\x37\xbb\x78\x57\xc6\x95\x75\xe5\x9c\x73\xe5\x5d\x82\x6b\xeb" "\xda\xb9\x76\xae\xbd\x7b\xc2\x75\x70\x1d\x5d\x27\xf7\xa4\x7b\xd2\x3d" "\xe5\x9e\x72\x4f\xbb\xa7\xdd\x33\xae\xab\x7b\xd6\x75\x73\xcf\xb9\xee" "\xee\x79\xd7\xc3\xbd\xe0\x5e\x70\x2f\xba\x5e\xae\xb7\xeb\xe3\x5e\x72" "\x7d\xdd\xcb\xae\x9f\xeb\xef\x92\x5c\x92\x1b\xe8\x06\xba\x41\x6e\x90" "\x1b\xe2\x86\xe4\xf9\x75\x0f\xe6\x46\xb8\x11\x2e\xd9\x25\xbb\x51\x6e" "\x94\x1b\xed\x46\xbb\x31\x6e\x8c\x1b\xeb\xc6\xba\xf1\x6e\xbc\x9b\xe0" "\x26\xb8\x49\x6e\x92\x9b\xe2\xa6\xb8\x14\x97\xe2\xa6\xb9\x69\x2e\xd5" "\xa5\xba\xe9\x6e\xba\x9b\xe9\x66\xba\x34\x97\xe6\xe6\xb8\x39\x6e\xae" "\x9b\xeb\xe6\xbb\xf9\x6e\x41\xfc\x02\xb7\xd0\x2d\x74\x8b\xdd\x62\x97" "\xee\xd2\x5d\x86\xcb\x70\x99\x2e\xd3\x2d\x73\xcb\x5c\x96\xcb\x72\x2b" "\xdc\x0a\xb7\xca\xad\x72\x6b\xdc\x1a\xb7\xce\xad\x73\x1b\xdc\x06\xb7" "\xc9\x6d\x72\x5b\xdc\x16\xb7\xcd\x6d\x73\xdb\xdd\x76\xb7\xd3\xed\x74" "\xbb\xdd\x6e\xb7\xd7\xed\x75\xfb\xdc\x3e\xb7\xdf\xed\x77\xd9\x2e\xdb" "\x1d\x70\x07\xdc\x41\x77\xd0\x1d\x72\x5f\xbb\x1c\xf7\x8d\x3b\xec\xbe" "\x75\x47\xdc\x77\xee\xa8\xfb\xde\x1d\x73\x3f\xb8\xe3\xee\x84\x3b\xe9" "\x7e\x74\xa7\xdc\x4f\xee\xb4\x3b\xe3\xce\xba\x73\xee\xbc\xfb\xd9\x5d" "\x70\xbf\xb8\x8b\xce\xbb\x94\xc8\x3b\x91\x69\x91\x77\x23\xa9\x91\xf7" "\x22\xd3\x23\x33\x22\x33\x23\xb3\x22\x69\x91\xd9\x91\x39\x91\xf7\x23" "\x73\x23\xf3\x22\xf3\x23\x1f\x44\x16\x44\x3e\x8c\x2c\x8c\x2c\x8a\x2c" "\x8e\x2c\x89\xa4\x47\x3e\x8a\x64\x44\x96\x46\x32\x23\x1f\x47\x96\x45" "\x3e\x89\x64\x45\x96\x47\x56\x44\x56\x46\x56\x45\x56\x47\xbc\x2f\xbe" "\x3d\xf4\x25\x7d\x29\x1f\xf5\x37\xf9\xd2\xfe\x66\x1f\xef\xcb\xf8\xb2" "\xbe\x9c\x77\xbe\xbc\x4f\xf0\xb7\xf8\x0a\xfe\x56\x5f\xd1\xdf\xe6\x2b" "\xf9\xdb\x7d\x65\x7f\x87\xaf\xe2\xab\xfa\x6a\xfe\x31\xdf\xca\xb7\xf6" "\x6d\x7c\x5b\xdf\xce\x3f\xee\xdb\xfb\x27\x7c\x07\xdf\xd1\x77\xf2\x4f" "\xfa\xce\xfe\x29\xdf\xc5\x3f\xed\x13\xfd\x33\xbe\xab\x7f\xd6\x77\xf3" "\xcf\xf9\xee\xfe\x79\xdf\xc3\xbf\xe0\x7b\xfa\x17\x7d\x2f\xdf\xdb\xf7" "\xf1\x2f\xf9\xbe\xfe\x65\xdf\xcf\xf7\xf7\x49\x7e\x80\x1f\xe8\x5f\xf1" "\x83\xfc\x60\x3f\xc4\x0f\xf5\xc3\xfc\xab\x7e\xb8\x7f\xcd\x8f\xf0\xaf" "\xfb\x64\x3f\xd2\x8f\xf2\x6f\xf8\xd1\xfe\x4d\x3f\xc6\xbf\xe5\xc7\xfa" "\x71\x7e\xbc\x7f\xdb\x4f\xf0\x13\xfd\x24\x3f\xd9\x4f\xf1\x53\x7d\x8a" "\x7f\xc7\x4f\xf3\xef\xfa\x54\xff\x9e\x9f\xee\x67\xf8\x99\x7e\x96\x4f" "\xf3\xb3\xfd\x1c\xff\xbe\x9f\xeb\xe7\xf9\xf9\xfe\x03\xbf\xc0\x7f\xe8" "\x17\xfa\x45\x7e\xb1\x5f\xe2\xd3\xfd\x47\x3e\xc3\x2f\xf5\x99\xfe\x63" "\xbf\xcc\x7f\xe2\xb3\xfc\x72\xbf\xc2\xaf\xf4\xab\xfc\x6a\xbf\xc6\xaf" "\xf5\xeb\xfc\x7a\xbf\xc1\x6f\xf4\x9b\xfc\x66\xbf\xc5\x6f\xf5\xdb\xfc" "\xa7\x7e\xbb\xdf\xe1\x77\xfa\x5d\x7e\xb7\xdf\xe3\xf7\xfa\xcf\xfc\x3e" "\xff\xb9\xdf\xef\xbf\xf0\xd9\xfe\x4b\x7f\xc0\xff\xc9\x1f\xf4\x5f\xf9" "\x43\xfe\x6b\x9f\xe3\xbf\xf1\x87\xfd\xb7\xfe\x88\xff\xce\x1f\xf5\xdf" "\xfb\x63\xfe\x07\x7f\xdc\x9f\xf0\x27\xfd\x8f\xfe\x94\xff\xc9\x9f\xf6" "\x67\xfc\x59\x7f\xce\x9f\xf7\x3f\xfb\x0b\xfe\x17\x7f\x91\xff\x67\x8d" "\x31\xc6\x18\x63\xec\x9f\x92\x7a\xe8\x8f\x8f\x0f\xf8\x3b\x8f\xc9\x5f" "\xc7\x25\x03\x85\x10\xd7\xee\x28\x96\xf3\xb7\xc7\xb5\x10\x62\x53\xe1" "\x3f\xcf\x07\xcb\xb8\xce\x11\x21\xc4\x33\xfd\x7b\x3e\xfc\x97\x51\xa7" "\x4e\x52\x52\xd2\xaf\xcf\xcd\x52\x22\x28\xb5\x48\x08\x11\xb9\x92\x7f" "\xf9\x32\xe4\xd7\x78\xb9\xe8\x24\x9e\x12\x89\xa2\xa3\xa8\xf0\x77\xeb" "\x1b\x2c\x7b\x9f\xa7\x3f\x58\x1f\x8e\x7b\x1f\xbd\x5d\x88\xfc\x7f\x93" "\x13\x23\xae\xc4\x57\xd6\xbf\xf5\x7f\x58\xff\xf1\x27\xc7\x67\x54\x0e" "\xcf\xc6\xfe\x76\xfd\x0b\xbf\xee\x37\x2f\xd5\x1f\x5d\x24\x44\x7c\xa9" "\x2b\x39\xf9\xc4\x95\xf8\xca\xfa\x15\xff\x87\xf5\x8b\xb4\xff\xa3\xfa" "\xb3\x94\xc8\xf7\x55\x8a\x10\x1d\xfe\x26\xa7\x80\xb8\x12\x5f\x59\x3f" "\x41\x3c\x21\x9e\x15\x89\xbf\x79\x26\x63\x8c\x31\xc6\x18\x63\x8c\x31" "\xf6\x67\x83\x65\xb5\xee\xff\xe0\xfa\xf3\xf2\xf5\x79\x9c\xbe\x1c\x5e" "\x7e\x38\xaf\xf8\x6b\xfc\x0f\xaf\xcf\x19\x63\x8c\x31\xc6\x18\x63\x8c" "\x31\x76\xf5\x3d\xdf\xbb\xcf\xd3\x8f\x27\x26\x76\xec\xce\x13\x9e\xf0" "\x84\x27\x7f\x9d\x5c\xed\xdf\x4c\x8c\x31\xc6\x18\x63\x8c\xb1\xff\xb4" "\x2b\x9b\xfe\xab\x5d\x09\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63" "\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31" "\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\x96\x7b\xfd\x6f\x7c\x9c\xd8" "\xd5\x3e\x47\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c" "\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6" "\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63" "\xec\x6a\xfb\x3f\x01\x00\x00\xff\xff\x66\x27\x42\x30", 5402)); NONFAILING(syz_mount_image(/*fs=*/0x2000000000c0, /*dir=*/0x2000000001c0, /*flags=*/0, /*opts=*/0x200000001e40, /*chdir=*/0xfe, /*size=*/0x151a, /*img=*/0x200000000900)); break; case 6: // openat arguments: [ // fd: fd_dir (resource) // file: ptr[in, buffer] { // buffer: {2e 2f 66 69 6c 65 31 00} (length 0x8) // } // flags: open_flags = 0x105042 (4 bytes) // mode: open_mode = 0x1db (2 bytes) // ] // returns fd NONFAILING(memcpy((void*)0x200000000540, "./file1\000", 8)); res = syscall( __NR_openat, /*fd=*/0xffffff9c, /*file=*/0x200000000540ul, /*flags=O_SYNC|O_DIRECT|O_CREAT|O_RDWR*/ 0x105042, /*mode=S_IXOTH|S_IWOTH|S_IXGRP|S_IWGRP|S_IXUSR|S_IWUSR|S_IRUSR*/ 0x1db); if (res != -1) r[1] = res; break; case 7: // writev arguments: [ // fd: fd (resource) // vec: ptr[in, array[iovec[in, array[int8]]]] { // array[iovec[in, array[int8]]] { // iovec[in, array[int8]] { // addr: ptr[in, buffer] { // buffer: {10} (length 0x1) // } // len: len = 0x100000 (8 bytes) // } // } // } // vlen: len = 0x1 (8 bytes) // ] NONFAILING(*(uint64_t*)0x200000000140 = 0x200000001200); NONFAILING(memset((void*)0x200000001200, 16, 1)); NONFAILING(*(uint64_t*)0x200000000148 = 0x100000); syscall(__NR_writev, /*fd=*/r[1], /*vec=*/0x200000000140ul, /*vlen=*/1ul); break; case 8: // syz_mount_image$ext4 arguments: [ // fs: ptr[in, buffer] { // buffer: {65 78 74 34 00} (length 0x5) // } // dir: ptr[in, buffer] { // buffer: {2e 2f 66 69 6c 65 31 00} (length 0x8) // } // flags: mount_flags = 0x408e (8 bytes) // opts: ptr[in, fs_options[ext4_options]] { // fs_options[ext4_options] { // elems: array[fs_opt_elem[ext4_options]] { // fs_opt_elem[ext4_options] { // elem: union ext4_options { // debug_want_extra_isize: fs_opt["debug_want_extra_isize", // fmt[hex, int32]] { // name: buffer: {64 65 62 75 67 5f 77 61 6e 74 5f 65 78 74 // 72 61 5f 69 73 69 7a 65} (length 0x16) eq: const = 0x3d (1 // bytes) val: int32 = 0x2e (18 bytes) // } // } // comma: const = 0x2c (1 bytes) // } // fs_opt_elem[ext4_options] { // elem: union ext4_options { // min_batch_time: fs_opt["min_batch_time", fmt[hex, int32]] { // name: buffer: {6d 69 6e 5f 62 61 74 63 68 5f 74 69 6d 65} // (length 0xe) eq: const = 0x3d (1 bytes) val: int32 = 0xfff // (18 bytes) // } // } // comma: const = 0x2c (1 bytes) // } // fs_opt_elem[ext4_options] { // elem: union ext4_options { // inode_readahead_blks: fs_opt["inode_readahead_blks", // fmt[hex, flags[ext4_inode_readahead_blks]]] { // name: buffer: {69 6e 6f 64 65 5f 72 65 61 64 61 68 65 61 // 64 5f 62 6c 6b 73} (length 0x14) eq: const = 0x3d (1 // bytes) val: ext4_inode_readahead_blks = 0x80 (18 bytes) // } // } // comma: const = 0x2c (1 bytes) // } // fs_opt_elem[ext4_options] { // elem: union ext4_options { // debug_want_extra_isize: fs_opt["debug_want_extra_isize", // fmt[hex, int32]] { // name: buffer: {64 65 62 75 67 5f 77 61 6e 74 5f 65 78 74 // 72 61 5f 69 73 69 7a 65} (length 0x16) eq: const = 0x3d (1 // bytes) val: int32 = 0x2 (18 bytes) // } // } // comma: const = 0x2c (1 bytes) // } // fs_opt_elem[ext4_options] { // elem: union ext4_options { // errors_remount: buffer: {65 72 72 6f 72 73 3d 72 65 6d 6f 75 // 6e 74 2d 72 6f} (length 0x11) // } // comma: const = 0x2c (1 bytes) // } // fs_opt_elem[ext4_options] { // elem: union ext4_options { // max_batch_time: fs_opt["max_batch_time", fmt[hex, int32]] { // name: buffer: {6d 61 78 5f 62 61 74 63 68 5f 74 69 6d 65} // (length 0xe) eq: const = 0x3d (1 bytes) val: int32 = 0x4 // (18 bytes) // } // } // comma: const = 0x2c (1 bytes) // } // } // common: array[fs_opt_elem[fs_options_common]] { // } // null: const = 0x0 (1 bytes) // } // } // chdir: int8 = 0x3 (1 bytes) // size: len = 0x43a (8 bytes) // img: ptr[in, buffer] { // buffer: (compressed buffer with length 0x43a) // } // ] // returns fd_dir NONFAILING(memcpy((void*)0x200000000040, "ext4\000", 5)); NONFAILING(memcpy((void*)0x200000000200, "./file1\000", 8)); NONFAILING(memcpy((void*)0x2000000007c0, "debug_want_extra_isize", 22)); NONFAILING(*(uint8_t*)0x2000000007d6 = 0x3d); NONFAILING(sprintf((char*)0x2000000007d7, "0x%016llx", (long long)0x2e)); NONFAILING(*(uint8_t*)0x2000000007e9 = 0x2c); NONFAILING(memcpy((void*)0x2000000007ea, "min_batch_time", 14)); NONFAILING(*(uint8_t*)0x2000000007f8 = 0x3d); NONFAILING(sprintf((char*)0x2000000007f9, "0x%016llx", (long long)0xfff)); NONFAILING(*(uint8_t*)0x20000000080b = 0x2c); NONFAILING(memcpy((void*)0x20000000080c, "inode_readahead_blks", 20)); NONFAILING(*(uint8_t*)0x200000000820 = 0x3d); NONFAILING(sprintf((char*)0x200000000821, "0x%016llx", (long long)0x80)); NONFAILING(*(uint8_t*)0x200000000833 = 0x2c); NONFAILING(memcpy((void*)0x200000000834, "debug_want_extra_isize", 22)); NONFAILING(*(uint8_t*)0x20000000084a = 0x3d); NONFAILING(sprintf((char*)0x20000000084b, "0x%016llx", (long long)2)); NONFAILING(*(uint8_t*)0x20000000085d = 0x2c); NONFAILING(memcpy((void*)0x20000000085e, "errors=remount-ro", 17)); NONFAILING(*(uint8_t*)0x20000000086f = 0x2c); NONFAILING(memcpy((void*)0x200000000870, "max_batch_time", 14)); NONFAILING(*(uint8_t*)0x20000000087e = 0x3d); NONFAILING(sprintf((char*)0x20000000087f, "0x%016llx", (long long)4)); NONFAILING(*(uint8_t*)0x200000000891 = 0x2c); NONFAILING(*(uint8_t*)0x200000000892 = 0); NONFAILING(memcpy( (void*)0x200000000340, "\x78\x9c\xec\xdb\xcb\x6f\x1b\x45\x18\x00\xf0\x6f\xd7\x71\x4a\x5f\x24" "\x94\xf2\xe8\x03\x08\x14\x44\xc4\x23\x69\xd2\x02\x3d\x70\x01\x81\xc4" "\x01\x24\x24\x38\x94\x63\x48\xd2\xaa\xd4\x6d\x50\x13\x24\x5a\x55\x10" "\x10\x2a\x47\x54\x89\x3b\xe2\x88\xc4\x5f\xc0\x09\x2e\x08\x38\x21\x71" "\x85\x3b\xaa\x54\xa1\x5c\x5a\x38\x19\xad\xbd\x9b\x38\x8e\x9d\x26\xc1" "\x8e\x4b\xfd\xfb\x49\x9b\xcc\xec\x8e\x33\xf3\x79\x76\xec\xd9\x9d\x6c" "\x00\x7d\x6b\x24\xfb\x91\x44\xec\x89\x88\xdf\x23\x62\xa8\x9e\x5d\x5d" "\x60\xa4\xfe\xeb\xe6\xd2\xe5\xe9\xbf\x97\x2e\x4f\x27\x51\xad\xbe\xf5" "\x57\x52\x2b\x77\x63\xe9\xf2\x74\x51\xb4\x78\xdd\xee\x3c\x33\x9a\x46" "\xa4\x9f\x25\x71\xa8\x45\xbd\xf3\x17\x2f\x9d\x9d\xaa\x54\x66\x2f\xe4" "\xf9\xf1\x85\x73\xef\x8f\xcf\x5f\xbc\xf4\xec\x99\x73\x53\xa7\x67\x4f" "\xcf\x9e\x9f\x3c\x71\xe2\xf8\xb1\x89\x17\x9e\x9f\x7c\xae\x23\x71\x66" "\x6d\xba\x71\xf0\xa3\xb9\xc3\x07\x5e\x7b\xe7\xea\x1b\xd3\x27\xaf\xbe" "\xfb\xf3\xb7\x49\x11\x7f\x53\x1c\x1d\x32\xb2\xde\xc1\x27\xaa\xd5\x0e" "\x57\xd7\x5b\x7b\x1b\xd2\xc9\x40\x0f\x1b\xc2\xa6\x94\x22\x22\xeb\xae" "\x72\x6d\xfc\x0f\x45\x29\x56\x3a\x6f\x28\x5e\xfd\xb4\xa7\x8d\x03\xba" "\xaa\x5a\xad\x56\x77\xb7\x3f\xbc\x58\x05\xee\x60\x49\x6c\xb4\xe4\xd9" "\xfc\xf3\x02\xb8\x33\x14\x5f\xf4\xd9\xf5\x6f\xb1\x6d\xd3\xd4\xe3\xb6" "\x70\xfd\xa5\xfa\x05\x50\x16\xf7\xcd\x7c\xab\x1f\x19\x88\x34\x2f\x53" "\x6e\xba\xbe\xed\xa4\x91\x88\x38\xb9\xf8\xcf\x57\xd9\x16\xdd\xb9\x0f" "\x01\x00\xb0\xca\xf7\xd9\xfc\xe7\x99\x56\xf3\xbf\x34\xee\x6f\x28\x77" "\x77\xbe\x36\x34\x1c\x11\xf7\x44\xc4\xbe\x88\xb8\x37\x22\xf6\x47\xc4" "\x7d\x11\xb5\xb2\x0f\x44\xc4\x83\x9b\xac\xbf\x79\x91\x64\xed\xfc\x27" "\xbd\xb6\xa5\xc0\x36\x28\x9b\xff\xbd\x98\xaf\x6d\xad\x9e\xff\x15\xb3" "\xbf\x18\x2e\xe5\xb9\xbd\xb5\xf8\xcb\xc9\xa9\x33\x95\xd9\xa3\xf9\x7b" "\x32\x1a\xe5\x1d\x59\x7e\x62\x9d\x3a\x7e\x78\xe5\xb7\x2f\xda\x1d\x6b" "\x9c\xff\x65\x5b\x56\x7f\x31\x17\xcc\xdb\x71\x6d\x60\xc7\xea\xd7\xcc" "\x4c\x2d\x4c\xfd\x97\x98\x1b\x5d\xff\x24\xe2\xe0\x40\xab\xf8\x93\xe5" "\x95\x80\x24\x22\x0e\x44\xc4\xc1\x2d\xd6\x71\xe6\xa9\x6f\x0e\xb7\x3b" "\xd6\x2e\xfe\xf2\x46\xfe\x70\x07\xd6\x99\xaa\x5f\x47\x3c\x59\xef\xff" "\xc5\x68\x8a\xbf\x90\xac\xbf\x3e\x39\x7e\x57\x54\x66\x8f\x8e\x17\x67" "\xc5\x5a\xbf\xfc\x7a\xe5\xcd\x76\xf5\xdf\xba\xff\xbb\x2b\xeb\xff\x5d" "\x2d\xcf\xff\xe5\xf8\x87\x93\xc6\xf5\xda\xf9\xcd\xd7\x71\xe5\x8f\xcf" "\xdb\x5e\xd3\x6c\xf5\xfc\x1f\x4c\xde\xae\xa5\x07\xf3\x7d\x1f\x4e\x2d" "\x2c\x5c\x98\x88\x18\x4c\x5e\xaf\x37\xba\x71\xff\xe4\xca\x6b\x8b\x7c" "\x51\x3e\x8b\x7f\xf4\x48\xeb\xf1\xbf\x2f\x56\xde\x89\x43\x11\x91\x9d" "\xc4\x0f\x45\xc4\xc3\x11\xf1\x48\xde\xf6\x47\x23\xe2\xb1\x88\x38\xb2" "\x4e\xfc\x3f\xbd\xfc\xf8\x7b\x5b\x8f\xbf\xbb\xb2\xf8\x67\x36\xd5\xff" "\x2b\x89\xc1\x68\xde\xd3\x3a\x51\x3a\xfb\xe3\x77\xab\x2a\x1d\xde\x4c" "\xfc\x59\xff\x1f\xaf\xa5\x46\xf3\x3d\x1b\xf9\xfc\xdb\x48\xbb\xb6\x76" "\x36\x03\x00\x00\xc0\xff\x4f\x1a\x11\x7b\x22\x49\xc7\x96\xd3\x69\x3a" "\x36\x56\xff\x7f\xf9\xfd\xb1\x2b\xad\xcc\xcd\x2f\x3c\x7d\x6a\xee\x83" "\xf3\x33\xf5\x67\x04\x86\xa3\x9c\x16\x77\xba\x86\x1a\xee\x87\x4e\xe4" "\x97\xf5\x45\x7e\xb2\x29\x7f\x2c\xbf\x6f\xfc\x65\x69\x67\x2d\x3f\x36" "\x3d\x57\x99\xe9\x75\xf0\xd0\xe7\x76\xb7\x19\xff\x99\x3f\x4b\xbd\x6e" "\x1d\xd0\x75\x9e\xd7\x82\xfe\x65\xfc\x43\xff\x32\xfe\xa1\x7f\x19\xff" "\xd0\xbf\x5a\x8c\xff\x9d\xbd\x68\x07\xb0\xfd\x5a\x7d\xff\x7f\xdc\x83" "\x76\x00\xdb\xaf\x69\xfc\x5b\xf6\x83\x3e\xe2\xfa\x1f\xfa\x97\xf1\x0f" "\xfd\xcb\xf8\x87\xbe\x34\xbf\x33\x6e\xfd\x90\xbc\x84\xc4\x9a\x44\xa4" "\xb7\x45\x33\x24\xba\x94\xe8\xf5\x27\x13\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x40" "\x67\xfc\x1b\x00\x00\xff\xff\xd1\x3d\xe3\x43", 1082)); NONFAILING(syz_mount_image( /*fs=*/0x200000000040, /*dir=*/0x200000000200, /*flags=MS_REC|MS_NOSUID|MS_NOEXEC|MS_NODEV|0x80*/ 0x408e, /*opts=*/0x2000000007c0, /*chdir=*/3, /*size=*/0x43a, /*img=*/0x200000000340)); break; } } int main(void) { syscall(__NR_mmap, /*addr=*/0x1ffffffff000ul, /*len=*/0x1000ul, /*prot=*/0ul, /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/(intptr_t)-1, /*offset=*/0ul); syscall(__NR_mmap, /*addr=*/0x200000000000ul, /*len=*/0x1000000ul, /*prot=PROT_WRITE|PROT_READ|PROT_EXEC*/ 7ul, /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/(intptr_t)-1, /*offset=*/0ul); syscall(__NR_mmap, /*addr=*/0x200001000000ul, /*len=*/0x1000ul, /*prot=*/0ul, /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/(intptr_t)-1, /*offset=*/0ul); const char* reason; (void)reason; install_segv_handler(); for (procid = 0; procid < 5; procid++) { if (fork() == 0) { loop(); } } sleep(1000000); return 0; }