// https://syzkaller.appspot.com/bug?id=ff834988a0e05a23199aa0230d9afa4b010c69d2 // 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 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 < 6; 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)); 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[3] = {0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff}; void execute_call(int call) { intptr_t res = 0; switch (call) { case 0: // syz_mount_image$udf arguments: [ // fs: ptr[in, buffer] { // buffer: {75 64 66 00} (length 0x4) // } // dir: ptr[in, buffer] { // buffer: {2e 2f 66 69 6c 65 30 00} (length 0x8) // } // flags: mount_flags = 0x1818418 (8 bytes) // opts: ptr[inout, array[ANYUNION]] { // array[ANYUNION] { // } // } // chdir: int8 = 0xde (1 bytes) // size: len = 0x4b1 (8 bytes) // img: ptr[in, buffer] { // buffer: (compressed buffer with length 0x4b1) // } // ] // returns fd_dir memcpy((void*)0x200000000080, "udf\000", 4); memcpy((void*)0x200000000500, "./file0\000", 8); memcpy( (void*)0x200000000ac0, "\x78\x9c\xec\xdb\x4d\x6c\x54\xd5\x1b\xc7\xf1\xdf\x33\x77\x3a\x4c\x87" "\xfe\xff\x96\x17\x0b\x18\x02\x4d\x34\xb1\x82\x40\x5f\xb0\x40\x6a\x62" "\x78\xb1\xd1\x84\x17\x2d\x54\x23\xf1\x25\x95\x4e\xb1\xd2\x76\x48\xa7" "\x28\x25\x20\x2c\xd5\x9d\x0b\x96\x2e\xdd\xba\x70\x65\xdc\x1a\x12\x97" "\xc6\x85\xc1\x18\x16\x26\xc8\xc6\xcd\xac\xc4\x1d\xe6\xdc\xb9\x6f\x33" "\x94\xce\x8c\x6d\x67\x28\xfd\x7e\x08\x9c\x7b\xcf\x3c\x77\x38\xe7\x3c" "\x73\xe7\x9c\x33\x99\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\x90\x8e\xbc\x7a\xb8\xb7\xcf\x5a\xdd\x0a\x00\x00\xd0\x4c\x27" "\x4f\x8f\xf4\x0e\x30\xff\x03\x00\xb0\xa6\x9c\x61\xff\x0f\x00\x00\xb0" "\x96\x98\x3c\xfd\x2e\xd3\x9e\x0b\x25\x3b\xe1\x9f\x97\x65\x8f\x4f\xce" "\x5c\xba\x3c\x7a\x6c\x78\xe1\xcb\xda\x4d\xa6\x94\x3c\x3f\xde\xfd\xcd" "\xf6\xf5\x0f\xec\x7f\x69\xf0\xc0\xc1\xb0\x5c\xfc\xfa\xe5\xb6\x4d\xa7" "\x4e\x9f\x39\xdc\x7d\xb4\x30\x7d\x71\x36\x5f\x2c\xe6\xc7\xbb\x47\x67" "\x26\xcf\x15\xc6\xf3\x75\x3f\xc3\x52\xaf\xaf\xb6\xcb\x1f\x80\xee\xe9" "\x0b\x97\xc6\x27\x26\x8a\xdd\xfd\x7b\x07\x2a\x1e\xbe\xdc\x79\x6f\xdd" "\xfa\xae\xce\xa1\xc1\xf7\x8e\x66\xc2\xd8\xd1\x63\xc3\xc3\xa7\x13\x31" "\xe9\xb6\xff\xfc\xbf\x3f\xe4\x51\x2b\xfc\x8c\x3c\xbd\x20\xd3\xc7\xdf" "\x7f\x6b\x27\x25\xa5\xb4\xf4\xb1\xa8\xf1\xda\x59\x69\xed\x7e\x27\x76" "\xf9\x9d\x18\x3d\x36\xec\x77\x64\x6a\x72\x6c\x66\xce\x3d\x68\xa9\x20" "\x2a\x55\x39\x26\x99\x70\x8c\x9a\x90\x8b\x25\x49\x49\xae\x5d\x96\x59" "\x9e\x3d\x5b\x9b\x3c\xfd\x20\xd3\x91\x7d\x25\x3b\x25\xc9\x0b\xc7\x61" "\xb7\xff\xc1\x70\x5d\xed\x69\x85\xb4\xdb\xba\x4a\xea\xd1\x2a\xc8\xd9" "\x63\x6c\x9d\x3c\x7d\x20\xd3\xad\x7d\x9d\x7a\x23\x18\x57\x3f\xff\x19" "\xe9\x6a\xab\x1b\x87\x15\x97\x0e\xee\xff\x82\x95\xec\x4d\xff\xfd\xc0" "\xdd\x4f\xee\x6d\xf3\xf8\x5b\xdd\xaf\xcf\x4c\x14\x12\xb1\x96\x0a\xee" "\xa8\xd5\x3e\x3f\x34\xd3\x63\xfe\xde\x94\x95\xa7\x53\xfe\x1d\x5f\xb2" "\x11\xed\x6c\x75\x73\xd0\x64\xed\xf2\x34\x2d\x53\xe6\xab\x4f\xfc\x75" "\x85\xfc\x75\xe9\x53\x43\x07\x76\xec\x3c\x94\x5c\x61\x6c\xa9\xf1\x3c" "\x2e\x76\x6f\x70\x73\xd5\x33\x27\xb7\x05\x4b\x07\x4b\xb9\x3f\xcb\xdf" "\x2f\xd4\x27\x6b\x9e\xfe\x94\xe9\xfe\x6f\x59\xff\xbc\x27\x9c\x03\xa4" "\x1b\x0f\x16\xbb\xf0\x8f\xa6\x34\x0f\x2b\xcd\x3c\x4d\xc9\xf4\xcf\xb5" "\x92\x59\xd5\xbe\xd4\x4b\xec\xef\x23\xab\x7d\xee\x5f\xd9\xf6\xb7\x67" "\x8f\x16\x2e\xce\xcf\x4e\x9e\xff\x68\x6e\xc1\xc7\x73\xd9\xc3\x1f\x16" "\xe7\x66\xc7\xce\x2d\xfc\x70\x79\xef\xea\x25\x6b\x6a\xed\x63\xab\xa5" "\x1a\xdb\x92\xe5\xac\xbc\xe3\xfb\xfc\xd3\x52\x74\x5d\xb0\x07\xf8\x5f" "\xf9\x2c\x6e\xcd\x37\x57\xe3\xd7\x42\x4f\x55\x19\x4a\xbe\x7e\xea\x39" "\xae\x7b\x17\xdb\xc0\x3a\xca\xb5\xc9\xcc\xd3\x5d\x99\x26\xde\xdf\x5a" "\x9e\x67\x94\x6b\x78\x6c\xd6\x02\x97\xff\x61\x99\x8a\xa5\x9f\x2d\xcc" "\x74\x90\xff\x74\xf9\x2c\x91\xff\x97\xe3\xf1\xcb\x5a\x65\x19\xf1\x73" "\xfb\xff\xf2\xe7\x5a\xe1\x5a\x62\xdb\xd9\xcd\x8f\xaa\x5f\x89\xfc\xbb" "\x36\xb9\xfc\xbf\x23\xd3\x91\xbf\xb7\x06\x9f\x69\x94\xf3\xef\x55\xc5" "\xba\xb8\x2e\x99\xde\xbd\xb9\x3d\x88\x4b\x65\x5c\x5c\x3a\xec\x4e\xf9" "\x19\x27\x26\xa7\xf2\xbd\x2e\xf6\x81\x4c\x1b\x7f\x0a\x63\xe5\xc7\xe6" "\x82\xd8\x4d\x71\x6c\x9f\x8b\x2d\xca\xf4\xc5\xad\xca\xd8\xf5\x41\xec" "\xe6\x38\xb6\xdf\xc5\xde\x96\xe9\xce\xaf\x0b\xc7\x3e\x1d\xc7\x0e\xb8" "\xd8\x79\x97\xaf\x3b\xdd\x61\x6c\xce\xc5\xee\x08\x62\xbb\xe2\xd8\xbd" "\xe7\x0a\x53\xe3\xb5\x86\xd5\xe5\xbf\x5f\xa6\xb7\xaf\xbf\x66\x61\x9f" "\x1f\x99\xff\xc4\xfd\x7f\xa3\xaa\x8c\x3c\x94\xf3\xc5\x8f\x97\x2b\xff" "\x9d\x89\xba\x1b\x41\x5e\xcf\x06\xf9\x4f\xd7\xc8\xff\x97\x32\xcd\xff" "\xb5\x3d\xec\xb7\x3f\xf6\xe1\xcb\x6a\x83\xff\x6f\x9c\x7f\xb7\x56\xfe" "\xee\x66\x65\x6c\xb8\xa1\xdc\x18\xc7\xf6\xd5\xdb\xad\x56\x73\xf9\xdf" "\x20\xd3\xbd\x57\x6e\x47\x7d\x0e\xfa\x16\x9c\xc6\x19\x4a\xe6\xff\x99" "\x74\x65\x19\x8d\x6b\x8b\xf2\xbf\x21\x51\xd7\x19\xb4\x2b\xd3\xe0\x58" "\xac\x45\xc5\xf9\x2b\x17\xc6\xa6\xa6\xf2\xb3\x1c\x70\xc0\x01\x07\xd1" "\x41\xab\xdf\x99\xd0\x0c\x6e\xfe\x1f\x71\xb3\xfa\xa0\x67\xe1\x3a\x26" "\x98\xff\x3b\xca\x67\xf1\x8a\xe9\xfe\x67\xf1\xfc\x3f\x54\x55\x46\x5a" "\x34\xff\x6f\x4c\xd4\x0d\x05\xab\x96\xb6\xb4\x94\x9d\x9b\xbe\xd8\xb6" "\x45\xca\x16\xe7\xaf\xec\x99\x9c\x1e\x3b\x9f\x3f\x9f\x9f\x19\xd8\x3f" "\xd8\xdb\x7f\x68\x7f\xef\xc0\xc1\xb6\x4c\xb8\xb8\x8b\x8f\xea\x1e\xbb" "\x27\x81\xcb\xff\x6e\x99\xae\xfd\xf8\x4b\xb4\x8f\xa9\x5c\xff\x2d\xbc" "\xfe\xcf\x55\x95\x91\x16\xe5\x7f\x53\xb2\x4f\x15\xeb\x9a\xba\x87\x62" "\x4d\x72\xf9\xef\x90\x69\xf0\xee\xed\x68\xbf\xb9\xd8\xfa\x3f\xdc\xff" "\xf7\x3c\x5b\x59\x46\xf7\x5f\x8b\xf2\xbf\x39\x51\xd7\x19\xb4\xab\xa3" "\xc1\xb1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\xd5" "\x24\x67\x9e\x9e\x93\xe9\xf2\xc8\x8b\x16\xfe\x86\xa8\x9e\xef\xff\x8d" "\x57\x95\x91\xe5\xff\xfe\x57\xf9\x87\xc9\x35\xbe\xff\xd5\x95\xa8\x1b" "\x6f\xd2\xef\x1a\x1a\x1a\x68\x00\x00\x00\x00\x00\x00\x00\x00\x80\x26" "\x49\xc9\xd3\xd7\x32\x3d\xaf\x92\x5d\x77\x15\x1d\xd2\x89\x64\x89\x27" "\xda\xbf\x01\x00\x00\xff\xff\x1b\xac\x48\x00", 1201); syz_mount_image( /*fs=*/0x200000000080, /*dir=*/0x200000000500, /*flags=MS_I_VERSION|MS_POSIXACL|MS_SYNCHRONOUS|MS_STRICTATIME|MS_SILENT|0x408*/ 0x1818418, /*opts=*/0x200000000200, /*chdir=*/0xde, /*size=*/0x4b1, /*img=*/0x200000000ac0); break; case 1: // openat arguments: [ // fd: fd_dir (resource) // file: ptr[in, buffer] { // buffer: {2e 2f 66 69 6c 65 31 00} (length 0x8) // } // flags: open_flags = 0xc4042 (4 bytes) // mode: open_mode = 0x1ff (2 bytes) // ] // returns fd memcpy((void*)0x200000000300, "./file1\000", 8); res = syscall( __NR_openat, /*fd=*/0xffffff9c, /*file=*/0x200000000300ul, /*flags=O_NOATIME|O_DIRECT|O_CREAT|O_CLOEXEC|0x2*/ 0xc4042, /*mode=S_IXOTH|S_IWOTH|S_IROTH|S_IXGRP|S_IWGRP|S_IRGRP|S_IXUSR|S_IWUSR|0x100*/ 0x1ff); if (res != -1) r[0] = res; break; case 2: // openat$nullb arguments: [ // fd: const = 0xffffffffffffff9c (8 bytes) // file: ptr[in, buffer] { // buffer: {2f 64 65 76 2f 6e 75 6c 6c 62 30 00} (length 0xc) // } // flags: open_flags = 0x2000 (4 bytes) // mode: const = 0x0 (2 bytes) // ] // returns fd_block memcpy((void*)0x200000000140, "/dev/nullb0\000", 12); res = syscall(__NR_openat, /*fd=*/0xffffffffffffff9cul, /*file=*/0x200000000140ul, /*flags=FASYNC*/ 0x2000, /*mode=*/0); if (res != -1) r[1] = res; break; case 3: // open arguments: [ // file: ptr[in, buffer] { // buffer: {2e 2f 62 75 73 00} (length 0x6) // } // flags: open_flags = 0x14927e (8 bytes) // mode: open_mode = 0x0 (8 bytes) // ] // returns fd memcpy((void*)0x200000000180, "./bus\000", 6); res = syscall( __NR_open, /*file=*/0x200000000180ul, /*flags=O_TRUNC|O_SYNC|O_NOATIME|O_LARGEFILE|O_CREAT|O_RDWR|0x3c*/ 0x14927eul, /*mode=*/0ul); if (res != -1) r[2] = res; break; case 4: // write$UHID_INPUT arguments: [ // fd: fd_uhid (resource) // data: ptr[in, uhid_req[UHID_INPUT, uhid_input_req]] { // uhid_req[UHID_INPUT, uhid_input_req] { // type: const = 0x8 (4 bytes) // data: uhid_input_req { // data: buffer: {7f 3b 57 0f f6 23 eb aa d5 14 34 40 b0 30 bd 16 // 18 9e 21 07 c6 5c 39 90 9c 83 de 4f 32 38 d3 51 91 ac e2 1b f4 // 16 e0 8e 5d 12 a3 67 74 b8 00 5c 6b bd 53 03 47 8e c4 e1 f6 6a // bf dc 8f d6 56 c8 9c f7 12 30 ff b0 8e 76 bc de e4 f6 ad e4 65 // c4 d8 c2 a5 8f ad 96 f4 20 9d 82 65 b6 1b ca 7f 6f dd 64 ea ad // bc c2 af bd 84 af e3 65 1b 36 c8 09 c2 cc 32 67 41 8d 8e 1d 6d // eb d4 ce 84 d9 f2 b9 6a 15 a7 50 79 85 ec 57 47 28 0b c1 46 b2 // 53 ab b9 d5 a8 86 a9 2d 71 2c 11 0c 13 99 5a 55 f3 0a 8f 3f a3 // 4e 19 05 eb 02 e5 d4 74 f1 5a 8b 29 04 32 54 a5 29 8f 7e 38 c5 // a2 9d 8e 41 9b 9c 01 79 ca 47 68 78 49 b5 f1 bc 2c 9e 8d cc 8d // bb cb 29 15 5a 66 5a 88 50 af 64 4b db 98 80 4f 70 b7 2b 77 c0 // 35 c2 e0 cf 89 7f 95 80 82 d1 7e f0 fb 03 bf a9 87 e6 f0 a0 23 // 4d 07 70 c5 9e 3a 95 8d 4b 7a 1b 25 1a 71 24 f7 c5 c6 db 5b ee // 9e 67 c6 7b d0 7f 06 71 73 70 7c 36 04 3a b7 ca 5b 85 7f 6d 18 // 99 33 2a 51 c8 e5 73 09 77 eb 1f a4 a0 6f 2a 83 a0 20 3a 09 68 // 52 0c b9 a2 dd 51 10 77 a0 98 da ae 36 51 3b e8 b2 9a e5 37 7c // 9a c3 31 ef d9 d1 64 b3 eb 90 13 1a 5a 9e de 68 0a aa 0c db 70 // 6e c9 d5 f2 8b f6 6a 7a 16 c6 e6 26 1a a2 ab 83 65 63 db 9b fe // ce 79 6c 09 43 6a a5 eb 48 7a 40 ac 39 9e d9 e6 20 08 54 17 23 // 60 d2 6a 68 04 65 03 13 02 3d b2 be 35 73 74 2c 0b d0 a4 43 d4 // 89 c1 7b e0 d1 b2 44 a3 28 5d f9 de 3b 71 da 24 10 8c 4c 35 a7 // 22 d8 9c 2b be 39 c1 fd a7 da 83 9c 8d 0e df 14 2b 8d 65 82 07 // fd 3f 2d fb e8 c1 44 d8 86 ed 08 bf 3e 0c e3 8d f7 6d 08 0e c3 // 8c 10 9f b5 da da 97 d9 bb b0 37 5a 39 8a 4f 55 86 f7 45 44 8a // 3f 57 c5 a7 e8 5b ae 5f e5 5d 5a 12 cc 8e d8 b2 ea 6c a2 82 22 // 79 ac 1c bb 2b 13 96 d8 cb 8b cf 79 1b 6e 5f 71 39 07 79 d8 40 // c5 6a 1f c6 b1 a7 b2 38 40 2d af 62 88 38 36 9c fc c7 81 df 63 // 18 f5 6a 80 9b 1f b5 ee 0c d7 29 51 0e 7f fe 84 3b 90 f8 f0 3a // 43 fd ca 48 e4 68 cd 52 f0 a4 86 04 dc 06 e2 5e 1a 5a 76 95 26 // 80 24 27 6f 14 28 74 a9 0f 7b be ef 6e d3 1f 19 3b 67 23 f4 0e // 90 d1 9b 4e c5 87 06 fe f5 15 18 5e ee f3 3d 30 48 7f d0 b2 df // 5d d6 7f ac ab df 5e eb a4 e5 fd 00 3c e6 67 ab 02 ff bf d7 00 // f0 a8 c1 30 a0 5c 15 44 01 ed 40 35 f1 52 58 23 b9 b5 0a 08 ac // 4b 67 0a 8d 68 a6 64 40 ab c2 b0 f9 05 f0 4a 01 75 76 f9 f2 69 // d2 96 21 da a1 9f dc 33 6f e3 45 68 bf 76 20 a1 ba aa d2 6e dc // cb c3 07 ee a1 2b 5a 7f d6 66 8e ab 95 54 0c 99 b9 b4 bb 62 6e // 46 e6 47 3c 84 08 08 05 cd bc 4b f4 94 e0 42 5f 16 36 e8 93 a4 // 45 43 c7 8d bd cf 9f ba 71 87 5e 44 20 34 02 41 69 a5 68 25 bf // 08 ed b7 57 2c 8d 61 1f 34 03 19 2f 0c 2b 8c 10 c7 d4 06 94 0c // ef 7f 79 2d 0c 30 02 e7 a4 78 8b fb 09 87 a7 53 27 3f 42 14 26 // f9 c4 f3 00 31 9f 37 c0 8b c7 25 55 cd 28 85 6b 2c 30 1c 3e 42 // b4 c3 69 83 7a f6 19 cd 0b c9 a0 75 00 fd a8 24 f5 b6 65 33 8d // 46 a0 f7 ee 1a 9a e8 1a 8c b1 c2 2a 26 9d 7a 9e ba d4 3c 8d 42 // ba 22 63 33 38 90 7e ea 15 ba b8 ce 18 77 de 51 82 88 38 04 eb // 16 79 5d fd bc 57 ff 83 7e 94 33 52 78 ce 1a 45 e7 36 3c 71 c3 // 21 98 9a 02 04 10 01 d4 15 07 9a d3 d0 bb 63 cd c6 90 7a 77 75 // 20 5a 96 84 d2 21 7b 06 91 e8 ca 9c b1 74 b0 65 51 12 f8 c0 e2 // 3f 9f 64 45 47 8a 24 ae af 90 7f 07 99 5d 41 aa 0f c2 f6 ce ae // 35 2b 0b 53 a5 3f 5c bc 88 25 c3 1f 0a 80 18 69 5d f8 8f eb 30 // c2 c6 19 ee c8 ab 31 62 c6 9b 86 66 6f 04 53 eb 63 6c 8f b6 7d // e1 6e 86 c7 7e cc 46 94 f5 23 ec 53 ff 49 2e ce ce 27 6f 22 fe // 36 e9 a0 18 71 65 e7 0d 3c c2 58 3b f0 b8 83 7e cf e3 c9 21 1c // 8e 35 54 07 a3 09 be 97 db d3 c5 85 58 dd 2e 4a 6c 83 cd 54 7e // bf 6c db 5b df ff 1d 1e e5 da f1 e4 a6 db 70 d7 cf b3 3e b7 ee // d0 7e 94 97 10 ce e4 58 db 43 bc e3 60 6f e1 2c 6f 8f a6 f9 f7 // 66 67 a9 95 cd d2 28 47 3b 14 4a 62 5d 3a 76 66 3c b4 a0 a6 37 // 25 a2 ff 53 ee 7f 8b c2 3f 0c c7 4d 17 fc 1a e2 7b 79 72 48 e9 // e1 c2 41 66 89 aa ef 28 04 98 0f 58 5a 2d 34 a0 5e cb 62 f2 e8 // 49 07 ae 2a 79 ba 10 4f d3 f7 09 a7 ef d4 9e 35 e9 84 89 07 47 // bc a8 5c 0b d9 20 70 1c a9 47 b9 90 ef a4 f8 e4 21 c4 d8 1d b9 // bf 4c 10 24 a5 76 c9 94 ad 90 bc ed 00 08 43 a9 ce 99 f6 be 57 // f7 5c ab b0 bb 83 5e aa c8 5a b4 71 63 a3 d1 1e 67 00 3b 37 98 // cd 54 81 95 2c ec dc 25 76 95 8c 56 ba 05 c8 62 5d 5e f8 88 13 // 02 48 27 66 5b 00 b6 78 3b 8b ab c9 1f eb e8 79 a1 95 4c ed c2 // 3d d7 41 44 cb e4 bd 73 ca 6e ed 90 fc 51 3d 32 8a 45 38 68 03 // d6 71 d8 10 ac 0f 8b 54 27 c8 59 65 9b 3c 45 81 55 17 71 99 c1 // 87 f9 99 2a 7e b9 8f a5 43 1e 11 19 a9 1c da 7c 37 d8 fd c0 db // 88 d5 c1 24 71 ee 19 5c f4 72 c8 0e ec 7f a8 00 76 24 b2 e8 77 // e0 94 b5 c5 cf ba cc c0 c6 0f 53 ea 04 8d 9e a5 7f c9 c6 a0 fc // 18 a3 30 f2 25 40 16 89 64 62 95 76 9c 67 47 12 97 b7 b4 fd ac // 4a 45 bb 5c a2 77 fa f2 a5 0d 10 56 02 52 2a 57 c4 ff f0 39 89 // 41 f5 c9 c5 61 d5 9c 01 96 22 2f 44 69 73 59 0a 26 12 cb c2 69 // 20 dc 95 9c 57 0b 86 d7 62 15 d1 07 cd f5 7a 6d 59 c9 c4 34 32 // 1c 4a cc 7c a4 fa 48 28 e0 e2 34 bc 1a 4e 2b e0 0b 0b b9 e0 ef // 91 5e b0 c0 bc 58 74 b1 63 2e 84 2c c6 71 97 af e2 78 b1 58 f2 // 63 d9 54 b7 a8 f2 6e 0d 41 31 3d ca 6a 6b 1a 74 56 1e db c8 b3 // 67 8e 6e f1 80 ae 66 08 ba 93 44 27 61 95 f8 3c 97 64 fb 23 ee // 48 2b e7 83 28 a1 46 98 8e 8e f8 10 14 ba 9b 2b 19 31 69 2a c9 // ef 60 a0 bb dd 71 51 ef ad 2e c9 69 ee 28 a8 ed e4 cd ee 7b 30 // 0d c0 18 f7 c5 4d 84 c9 30 71 11 62 d8 eb a8 a4 a7 fb fc f6 c5 // 28 ee 32 8a 58 fb 55 1f 4c ae b8 c6 70 fe 78 e3 40 45 cf 76 ac // 34 9c 59 ce 8d 51 a8 93 8b 95 ac c7 33 d8 0a 29 4c 1d 45 5f 68 // f4 fe 10 f1 43 5f fb 64 56 47 3c 51 0c 3f 16 c6 d6 6f a3 cd 2b // df dc cb 2b 87 d0 d5 35 61 f1 70 c5 e4 7e 99 e7 6b f9 e7 9f f0 // ea 8b 96 98 89 1c d8 15 e1 84 8c 7e df d9 95 be c6 b8 03 e7 0c // 1f 2f 83 1c e2 cd c6 e4 2a 63 e9 03 e8 d7 f5 e6 cc 12 ae 16 f5 // 5e b1 56 26 94 22 4c c0 f0 3b 8e e9 4f ef 8a ac 6d fd a2 2a f6 // 40 89 29 7a cd a8 48 a9 6c d5 74 01 64 a6 81 34 6b 80 f9 14 9b // c0 e5 2d d7 19 0f 18 55 fb c2 2c 6f 63 50 3b 39 2e 3c 95 88 ff // 78 b3 14 67 4a 42 13 99 76 80 45 2f a5 3f c7 d5 8e 23 52 1a 4a // f4 db a2 07 87 4b 0f f2 42 ff 5b b4 e6 d9 03 2b 55 68 01 f7 1e // 71 f6 cd a7 ba 97 c8 85 3a 85 83 6f b7 8a 05 4c dd 56 02 7e 79 // 35 27 74 f7 7c c5 c0 55 dc 3b 31 4d c1 65 4a 3a f3 e9 bf 33 9d // 6a 32 fe 6f 16 6e 20 8d 3a 3e b5 18 ae 30 02 29 78 ad d2 4c 1e // 0c ac 05 de 18 a6 cf 5b e5 fb 47 04 78 5a 60 40 be b7 07 e6 62 // 8d 29 8f ab d3 05 3f 82 68 60 e5 6e e7 bb 4d 9f d4 2f 7e 55 00 // a0 00 3d 19 a0 2c ca a8 2a ff 5c 45 8c 7e 0f 0b 1d e1 5f 80 84 // a0 50 66 52 56 dc 9e 25 35 6f 91 0c 7e 7f 14 87 8d 58 00 00 af // 50 22 a9 5d f8 57 2a 46 bf d9 85 6b 2f ea 8d 9e 81 0f 5b 61 3a // 19 0e f8 9d 8e 14 f2 cd 00 91 91 3b 79 46 4f ab 5d 37 2c 6b ec // 09 4f 8a 4f 6a aa de cb 9c 19 dd 74 be b0 a7 47 37 42 62 35 78 // 55 81 85 e2 9f e6 7a 6a cd c9 fa 64 dd bd 95 03 f3 71 c8 a4 4a // 44 2f b9 61 92 6a f4 7c aa 3c 60 7d d1 1f d2 e1 48 04 42 ac a9 // a4 9c 5e 60 fb fd 72 20 c7 2c 22 26 7d 89 e5 a3 07 c1 f4 5b f7 // c5 ad 75 9a 29 a4 0a b6 77 50 ee da d1 ff 5b 6b b9 1f b5 e6 07 // a3 18 f4 a6 e2 ce 7a e8 21 62 92 e3 b9 a2 e2 9e ee 0c ad 7c c8 // 51 b5 26 10 5d 06 ae 1c 33 4f c9 d3 49 5c 1c 5a e2 d8 9c 3c 7f // ad 68 e3 4f 6a 95 7d 8a ae 64 35 2c 20 48 44 0d ac 33 37 f3 23 // a6 20 54 f9 58 ce 6f f4 79 c2 bd 5a 8f 60 f5 9a d1 25 44 7d ee // d3 8b 95 14 f6 4b 17 57 e3 c6 cd 43 05 62 4f 50 ec 58 0c b4 21 // f9 1f f3 a4 fe 70 2a ba e1 36 c4 e5 89 a8 61 a5 d2 b8 68 f4 ae // 61 14 ed bc f4 bb 81 8d fb 2a 92 aa 45 b0 63 0d 24 dc 86 40 16 // e5 39 80 6d 64 4a 54 be 70 57 75 b9 13 2d ba a4 45 d7 1c 55 77 // a0 e7 13 6c 42 c0 bf 50 28 98 bd 4d 53 6f 6e ff 3b 2a 6f 55 a7 // d8 9e 67 b0 65 ca a4 ce b6 cd e2 3c d3 a4 62 15 a1 88 bd 03 fb // 9a 55 4d 83 df 2a e4 b7 39 26 af 6c 5b cb 3f de ea 2e 39 ec 32 // cd 17 2c 08 43 a6 df f6 3c 2e 87 cc ff bd 51 24 00 d6 8f 1b dc // f3 85 8f a9 41 f9 05 79 a4 bf 51 2a 0d 39 8a a7 4f a7 b5 5e ba // b8 80 3e e8 f6 68 f0 68 66 92 37 22 80 77 70 c2 41 27 f8 70 a4 // f3 bd ad 5c 6c f9 f1 1c 8e 04 af ac 4d 87 71 c3 e4 cf ba ad 75 // 7b 10 9e e6 33 1b b7 0f 32 d4 ed b7 26 94 22 64 af b2 b1 28 4a // 1a 18 d1 bf 18 23 4b 30 aa 10 7f c0 da 9b e8 83 90 59 e1 e7 20 // d1 fa ac 82 16 d9 52 95 98 df 7b 74 07 8c c8 fe bf a5 2a c1 cd // ff fd 0c 4a ce cb 0f b6 28 3a 3d 40 e9 e9 1f 5d d9 9e cb 82 d7 // f0 bf c0 c2 33 3d e9 ed e1 99 79 66 93 4f 38 3d a3 32 86 e1 17 // 22 52 21 9a 2f f2 7e be cd 9d 02 38 23 38 d8 86 a4 57 a1 f5 c8 // 06 3a 6a 49 e1 e5 f4 bf ba a5 3b cd 68 f7 fb 58 3b 2a 1e a6 ca // 81 fb 60 07 90 10 64 a7 3c 39 11 26 61 42 e3 24 fc e9 f8 1c 09 // 93 f3 db 98 d1 f8 e5 49 ca 62 28 b3 ab 77 9d 16 16 99 26 f6 81 // 57 67 97 b2 22 71 7b 10 19 a2 45 7d a7 04 88 66 63 0b 07 70 5e // 78 68 2f 8f bb 64 d3 43 9e 23 2f e8 a2 3c 7d 19 17 4b ff a2 ea // 71 e1 d0 53 ea e4 9b a5 c6 0f 08 42 53 58 b8 c6 84 d3 a1 14 41 // 52 1d a9 59 df 1a b9 48 b0 2a 2d 36 33 2b 79 84 d8 2a b2 73 22 // f1 aa c7 8b 3d d2 2f 5f 20 af bf b6 82 ff db 83 65 99 b8 cc 63 // 0e be 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65 f0 ef 4b 1e 84 1c 50 5b 7b 43 c2 ba 39 42 11 // 16 78 31 b4 ee 62 0c c1 1e b3 e4 62 71 6e 9a bc c9 98 96 86 9c // 65 ea 2f be 9a df fa 64 17 55 0f 27 3b 88 83 84 db ce 8f ef e5 // 06 2a 37 85 1b 56 fe 31 bc cb ad 5e e9 fa a7 af 6f a1 a4 f7 9e // 2f 7b 88 ff fb 8c 41 6c 48 49 ea 26 fd 8d ab 33 09 0c 26 24 95 // 35 fb 6f d4 a5 75 24 3f 43 55 5e 1a 3e a2 87 45 d4 e5 66 9c a4 // d5 1d bb 58 d6 81 5e 4e 12 bd 02 e3 10 5d ff bc f0 06 79 ca f8 // 41 1f 25 6b c4 db c5 49 92 86 64 cf e8 76 1b 8b cd 6b 05 d0 34 // 9a fd 81 76 b4 e6 9f 2e 9f 2f 0f 85 30 4e ba 8e e4 b5 56 39 bf // 16 d8 0f 72 39 21 0e 19 7c 75 d4 f8 0e b6 dd 66 6f b6 ed df 10 // af e4 c4 ea 16 8e 73 42 a1 c2 6f 2c 8a c1 42 76 1a 9a 5e f6 c4 // 1e fa 94 da 1f 1a 99 34 7c 58 0c 33 e7 c2 9d 8b d9 5c 8f 7f b0 // 4e c0 55 9e 6f 5a c5 15 3e 95 46 84 0f 2f 68 d1 c8 03 42 dc f1 // 49 c0 e8 cd 33 c4 11 9e 0b d5 06 1c 2b de e0 dd 7b 87 9c 51 cf // c9 06 c4 c0 5a f5 49 b5 57 15 a1 9c 49 ff d8 93 73 d1 6d 7e a7 // 6f 73 f4 b4 20 c5 5b 16 dc 26 33 0e e7 5e df 66 85 3e c5 d2 32 // 7d 0a 83 db d9 71 5c 98 1a 53 db 55 b5 8b b9 41 5d ca 9d 3c 57 // 48 0c 2a 32 5d 3d e0 5f 52 10 73 11 07 f0 93 e3 7f c1 c9 dd fc // 4e e1 b7 1e 07 fa bf 20 4a f0 d1 a3 02 81 38 52 96 d4 4e 96 83 // 3e d7 c6 f9 ad 78 dd d9 d7 32 cc 80 df 6e a3 db bd 0e 58 39 b1 // 96 e1 37 09 24 ad 94 2d ea 5d 2a 1f f1 77 9d b5 dc 6e 48 e4 95 // da e0 a7 2d 0b 88 e0 4a da 10 75 a1 13 3c ee 7d 81 4c bf a5 93 // ef 4b f1 34 dd ca e5 09 16 61 e9 fd d2 48 af c7 1f ff ea c0 28 // 44 3e 25 1d a0 9f f4 a2 a4 4f 74 7e a8 62 17 c5 16 d7 9e b5 29 // ce 79 64 77 f4 e6 10 b0 e0 66 9f 6b 8a b7 5b 4b ad 3e e8 fe d6 // 3b c0 14 af 64 d1 fd 0c 6b 89 cb d4 89 8a d1 17 57 6a eb 5d 45 // 52 45 2c 19 08 e3 83 78 d8 c5 13 c3 56 08 fb d4 ef 0b 7f 9e 77 // 73 fc 48 35 2d 19 bd cc 10 ef cf 98 62 b6 10 da c2 fe 00 23 0e // e5 f7 aa c5 34 af 6d 75 f0 7f c9 b8 77 04 f5 f6 a5 29 0c 54 67 // 27 06 87 41 ca 61 a8 b6 9e 70 2b b0 31 cf 7c fb 96 0d ae 52 cf // 79 c0 18 94 6a ff ff 12 36 72 e5 7f a1 ad 5c 7c 15 47 66 42 e6 // 7d a0 51 fe 01 5e d6 76 5a 18 0d 2b 86 05 13 20 26 c3 33 9d ad // 76 5d e1 50 ab a9 99 a4 84 91 b5 7b 86 1d 13 7d 62 05 f7 68 2d // 1e e1 32 96 66 1a dc 76 d4 84 28 ad 9d ab a7 c1 03 93 dd 1a 91 // 4a b5 4c a3 2f c7 23 9f 39 2a b3 44 9b 81 c2 62 e8 e8 63 7a b1 // aa a3 c8 b6 3c 18 f8 c6 18 45 fa 5a d1 05 a0 ce 99 ca e3 01 48 // 6a aa ea f8 65 e8 87 29 09 1f 5d f4 c3 ee e5 31 1b a8 d2 4f 27 // 4f ef 19 5d 93 15 af e0 ef eb cf b9 45 45 3f 01 03 77 a7 14 ae // 4a 32 4e d0 73 ea 7a 81 40 81 d9 8b 66 f0 41 ce 45 49 fb 0c 2a // 16 30 42 a7 7b 26 24 3b 48 f2 9d 85 98 7e 16 6f 4d 02 44 bc 72 // 08 d6 67 4f c7 4e 39 24 1c 22 b6 5b 00 42 e9 36 52 7d b1 72 cf // 3b 95 1a 1f f9 c4 ac 0b 36 04 d8 e7 e0 d5 bd f9 e8 05 fd 9e 27 // 10 d4 bb 06 db ff b4 8b a5 8c 57 8e 11 ac f7 82 33 5e 7e 1c d5 // 3e 81 73 89 b4 b4 56 28 d8 0e 2e 7e 7a 40 cf 4d 83 c5 0e b1 5a // 71 54 71 c3 5c 75 b3 9c 8d 26 f5 8a 65 6c 99 5e ec 96 66 1a b8 // fa 39 bb c1 08 41 b4 f8 60 e7 6b 07 40 5e 71 48 ff 42 4e b0 39 // 49 13 90 d3 47 79} (length 0x1000) size: len = 0x1000 (2 bytes) // } // } // } // len: len = 0x1006 (8 bytes) // ] *(uint32_t*)0x200000002480 = 8; memcpy( (void*)0x200000002484, "\x7f\x3b\x57\x0f\xf6\x23\xeb\xaa\xd5\x14\x34\x40\xb0\x30\xbd\x16\x18" "\x9e\x21\x07\xc6\x5c\x39\x90\x9c\x83\xde\x4f\x32\x38\xd3\x51\x91\xac" "\xe2\x1b\xf4\x16\xe0\x8e\x5d\x12\xa3\x67\x74\xb8\x00\x5c\x6b\xbd\x53" "\x03\x47\x8e\xc4\xe1\xf6\x6a\xbf\xdc\x8f\xd6\x56\xc8\x9c\xf7\x12\x30" "\xff\xb0\x8e\x76\xbc\xde\xe4\xf6\xad\xe4\x65\xc4\xd8\xc2\xa5\x8f\xad" "\x96\xf4\x20\x9d\x82\x65\xb6\x1b\xca\x7f\x6f\xdd\x64\xea\xad\xbc\xc2" "\xaf\xbd\x84\xaf\xe3\x65\x1b\x36\xc8\x09\xc2\xcc\x32\x67\x41\x8d\x8e" "\x1d\x6d\xeb\xd4\xce\x84\xd9\xf2\xb9\x6a\x15\xa7\x50\x79\x85\xec\x57" "\x47\x28\x0b\xc1\x46\xb2\x53\xab\xb9\xd5\xa8\x86\xa9\x2d\x71\x2c\x11" "\x0c\x13\x99\x5a\x55\xf3\x0a\x8f\x3f\xa3\x4e\x19\x05\xeb\x02\xe5\xd4" "\x74\xf1\x5a\x8b\x29\x04\x32\x54\xa5\x29\x8f\x7e\x38\xc5\xa2\x9d\x8e" 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"\x99\xb8\xcc\x63\x0e\xbe\xb3\x8d\x92\x0b\x6c\x92\x3c\xf4\x38\x62\xbd" "\x3a\xd7\x90\x3e\xd6\xaa\x39\xd6\xf7\x0a\x09\x89\xc5\xf5\x85\xe5\x61" "\xb2\xc5\xd0\x24\xe6\xab\xd6\x5b\xe1\xaa\x6f\x36\xe3\x4d\x77\xe0\x4c" "\x55\xbe\x1a\x5e\x67\x5e\x88\x2d\xf6\xcc\x91\x11\x91\xee\x28\xf8\x45" "\xb8\x18\x90\xa2\x32\x62\xb0\x9f\xf3\x09\xc6\x88\xea\x09\x63\xe7\xb0" "\x75\xb4\xa2\xb8\x67\x18\xe5\x47\x49\x61\x85\x9b\xe1\x07\x9b\x72\x89" "\xc4\xde\xb0\x0c\xc2\xef\xe7\xfa\xdf\x69\xb9\x0b\xa0\xd6\xf6\x7f\x8b" "\xc4\x75\xca\x9c\xce\x10\xa4\x1f\xcc\x07\xde\x6e\xb8\x54\xc2\x11\x9e" "\x5f\xd2\xce\xe3\x57\xd6\xc5\x50\x08\x01\x82\x2a\x0e\x02\x43\x14\x61" "\x40\xe2\x26\xb7\x56\xa1\x40\x1c\x3b\xe1\x65\x1c\xe3\xed\x33\xef\x9d" "\x96\x69\x6b\xd4\xd9\x72\xe2\xc2\xa4\xa8\xd7\xf0\x99\xec\x15\x04\xc4" "\x91\xd2\x60\xaf\x49\xfc\xe0\x18\x94\x5a\x60\x33\x89\x10\x81\x60\x03" "\x8c\x05\x51\x1e\xa1\xd5\x4f\xfb\x3d\x40\xbe\x65\xaf\x7e\xcf\x9c\xd4" "\xcc\x76\x7c\x64\x0d\x93\x37\xa3\xf4\xbd\xbf\xd4\xe2\x58\x7f\x25\xec" "\x00\xbe\x10\xf5\x76\x37\xf7\x2c\xf3\x85\x4f\x79\x5a\x68\x46\x8f\x66" "\xa8\x80\x54\x08\x85\x43\x4b\xd4\x1e\x71\xda\xcc\xf0\x0c\xa7\x2a\x2a" "\x1a\xf7\x73\x84\xe3\x4d\xa7\xaa\xf6\x83\x74\xd2\x24\x73\x16\xb9\xda" "\x2e\xfc\x19\xb7\x37\x47\x4e\x2c\x93\xa5\x66\x76\x83\xb6\x11\x14\xea" "\x11\x5f\x13\x58\x96\xaa\x90\xa6\x16\x8f\x1f\xeb\x46\x81\x34\xaa\xfb" "\x04\x65\xf0\xef\x4b\x1e\x84\x1c\x50\x5b\x7b\x43\xc2\xba\x39\x42\x11" "\x16\x78\x31\xb4\xee\x62\x0c\xc1\x1e\xb3\xe4\x62\x71\x6e\x9a\xbc\xc9" "\x98\x96\x86\x9c\x65\xea\x2f\xbe\x9a\xdf\xfa\x64\x17\x55\x0f\x27\x3b" "\x88\x83\x84\xdb\xce\x8f\xef\xe5\x06\x2a\x37\x85\x1b\x56\xfe\x31\xbc" "\xcb\xad\x5e\xe9\xfa\xa7\xaf\x6f\xa1\xa4\xf7\x9e\x2f\x7b\x88\xff\xfb" "\x8c\x41\x6c\x48\x49\xea\x26\xfd\x8d\xab\x33\x09\x0c\x26\x24\x95\x35" "\xfb\x6f\xd4\xa5\x75\x24\x3f\x43\x55\x5e\x1a\x3e\xa2\x87\x45\xd4\xe5" "\x66\x9c\xa4\xd5\x1d\xbb\x58\xd6\x81\x5e\x4e\x12\xbd\x02\xe3\x10\x5d" "\xff\xbc\xf0\x06\x79\xca\xf8\x41\x1f\x25\x6b\xc4\xdb\xc5\x49\x92\x86" "\x64\xcf\xe8\x76\x1b\x8b\xcd\x6b\x05\xd0\x34\x9a\xfd\x81\x76\xb4\xe6" "\x9f\x2e\x9f\x2f\x0f\x85\x30\x4e\xba\x8e\xe4\xb5\x56\x39\xbf\x16\xd8" "\x0f\x72\x39\x21\x0e\x19\x7c\x75\xd4\xf8\x0e\xb6\xdd\x66\x6f\xb6\xed" "\xdf\x10\xaf\xe4\xc4\xea\x16\x8e\x73\x42\xa1\xc2\x6f\x2c\x8a\xc1\x42" "\x76\x1a\x9a\x5e\xf6\xc4\x1e\xfa\x94\xda\x1f\x1a\x99\x34\x7c\x58\x0c" "\x33\xe7\xc2\x9d\x8b\xd9\x5c\x8f\x7f\xb0\x4e\xc0\x55\x9e\x6f\x5a\xc5" "\x15\x3e\x95\x46\x84\x0f\x2f\x68\xd1\xc8\x03\x42\xdc\xf1\x49\xc0\xe8" "\xcd\x33\xc4\x11\x9e\x0b\xd5\x06\x1c\x2b\xde\xe0\xdd\x7b\x87\x9c\x51" "\xcf\xc9\x06\xc4\xc0\x5a\xf5\x49\xb5\x57\x15\xa1\x9c\x49\xff\xd8\x93" "\x73\xd1\x6d\x7e\xa7\x6f\x73\xf4\xb4\x20\xc5\x5b\x16\xdc\x26\x33\x0e" "\xe7\x5e\xdf\x66\x85\x3e\xc5\xd2\x32\x7d\x0a\x83\xdb\xd9\x71\x5c\x98" "\x1a\x53\xdb\x55\xb5\x8b\xb9\x41\x5d\xca\x9d\x3c\x57\x48\x0c\x2a\x32" "\x5d\x3d\xe0\x5f\x52\x10\x73\x11\x07\xf0\x93\xe3\x7f\xc1\xc9\xdd\xfc" "\x4e\xe1\xb7\x1e\x07\xfa\xbf\x20\x4a\xf0\xd1\xa3\x02\x81\x38\x52\x96" "\xd4\x4e\x96\x83\x3e\xd7\xc6\xf9\xad\x78\xdd\xd9\xd7\x32\xcc\x80\xdf" "\x6e\xa3\xdb\xbd\x0e\x58\x39\xb1\x96\xe1\x37\x09\x24\xad\x94\x2d\xea" "\x5d\x2a\x1f\xf1\x77\x9d\xb5\xdc\x6e\x48\xe4\x95\xda\xe0\xa7\x2d\x0b" "\x88\xe0\x4a\xda\x10\x75\xa1\x13\x3c\xee\x7d\x81\x4c\xbf\xa5\x93\xef" "\x4b\xf1\x34\xdd\xca\xe5\x09\x16\x61\xe9\xfd\xd2\x48\xaf\xc7\x1f\xff" "\xea\xc0\x28\x44\x3e\x25\x1d\xa0\x9f\xf4\xa2\xa4\x4f\x74\x7e\xa8\x62" "\x17\xc5\x16\xd7\x9e\xb5\x29\xce\x79\x64\x77\xf4\xe6\x10\xb0\xe0\x66" "\x9f\x6b\x8a\xb7\x5b\x4b\xad\x3e\xe8\xfe\xd6\x3b\xc0\x14\xaf\x64\xd1" "\xfd\x0c\x6b\x89\xcb\xd4\x89\x8a\xd1\x17\x57\x6a\xeb\x5d\x45\x52\x45" "\x2c\x19\x08\xe3\x83\x78\xd8\xc5\x13\xc3\x56\x08\xfb\xd4\xef\x0b\x7f" "\x9e\x77\x73\xfc\x48\x35\x2d\x19\xbd\xcc\x10\xef\xcf\x98\x62\xb6\x10" "\xda\xc2\xfe\x00\x23\x0e\xe5\xf7\xaa\xc5\x34\xaf\x6d\x75\xf0\x7f\xc9" "\xb8\x77\x04\xf5\xf6\xa5\x29\x0c\x54\x67\x27\x06\x87\x41\xca\x61\xa8" "\xb6\x9e\x70\x2b\xb0\x31\xcf\x7c\xfb\x96\x0d\xae\x52\xcf\x79\xc0\x18" "\x94\x6a\xff\xff\x12\x36\x72\xe5\x7f\xa1\xad\x5c\x7c\x15\x47\x66\x42" "\xe6\x7d\xa0\x51\xfe\x01\x5e\xd6\x76\x5a\x18\x0d\x2b\x86\x05\x13\x20" "\x26\xc3\x33\x9d\xad\x76\x5d\xe1\x50\xab\xa9\x99\xa4\x84\x91\xb5\x7b" "\x86\x1d\x13\x7d\x62\x05\xf7\x68\x2d\x1e\xe1\x32\x96\x66\x1a\xdc\x76" "\xd4\x84\x28\xad\x9d\xab\xa7\xc1\x03\x93\xdd\x1a\x91\x4a\xb5\x4c\xa3" "\x2f\xc7\x23\x9f\x39\x2a\xb3\x44\x9b\x81\xc2\x62\xe8\xe8\x63\x7a\xb1" "\xaa\xa3\xc8\xb6\x3c\x18\xf8\xc6\x18\x45\xfa\x5a\xd1\x05\xa0\xce\x99" "\xca\xe3\x01\x48\x6a\xaa\xea\xf8\x65\xe8\x87\x29\x09\x1f\x5d\xf4\xc3" "\xee\xe5\x31\x1b\xa8\xd2\x4f\x27\x4f\xef\x19\x5d\x93\x15\xaf\xe0\xef" "\xeb\xcf\xb9\x45\x45\x3f\x01\x03\x77\xa7\x14\xae\x4a\x32\x4e\xd0\x73" "\xea\x7a\x81\x40\x81\xd9\x8b\x66\xf0\x41\xce\x45\x49\xfb\x0c\x2a\x16" "\x30\x42\xa7\x7b\x26\x24\x3b\x48\xf2\x9d\x85\x98\x7e\x16\x6f\x4d\x02" "\x44\xbc\x72\x08\xd6\x67\x4f\xc7\x4e\x39\x24\x1c\x22\xb6\x5b\x00\x42" "\xe9\x36\x52\x7d\xb1\x72\xcf\x3b\x95\x1a\x1f\xf9\xc4\xac\x0b\x36\x04" "\xd8\xe7\xe0\xd5\xbd\xf9\xe8\x05\xfd\x9e\x27\x10\xd4\xbb\x06\xdb\xff" "\xb4\x8b\xa5\x8c\x57\x8e\x11\xac\xf7\x82\x33\x5e\x7e\x1c\xd5\x3e\x81" "\x73\x89\xb4\xb4\x56\x28\xd8\x0e\x2e\x7e\x7a\x40\xcf\x4d\x83\xc5\x0e" "\xb1\x5a\x71\x54\x71\xc3\x5c\x75\xb3\x9c\x8d\x26\xf5\x8a\x65\x6c\x99" "\x5e\xec\x96\x66\x1a\xb8\xfa\x39\xbb\xc1\x08\x41\xb4\xf8\x60\xe7\x6b" "\x07\x40\x5e\x71\x48\xff\x42\x4e\xb0\x39\x49\x13\x90\xd3\x47\x79", 4096); *(uint16_t*)0x200000003484 = 0x1000; syscall(__NR_write, /*fd=*/r[2], /*data=*/0x200000002480ul, /*len=*/0x1006ul); break; case 5: // sendfile arguments: [ // fdout: fd (resource) // fdin: fd (resource) // off: nil // count: intptr = 0x20fffe82 (8 bytes) // ] syscall(__NR_sendfile, /*fdout=*/r[0], /*fdin=*/r[1], /*off=*/0ul, /*count=*/0x20fffe82ul); 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; for (procid = 0; procid < 5; procid++) { if (fork() == 0) { loop(); } } sleep(1000000); return 0; }