// https://syzkaller.appspot.com/bug?id=8bc5ac530e0f0ce6fb5257e0911cc9481e8b0b35 // 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 #ifndef __NR_memfd_create #define __NR_memfd_create 319 #endif static unsigned long long procid; 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, 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 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, loopfd = -1, 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) { memset(loopname, 0, sizeof(loopname)); snprintf(loopname, sizeof(loopname), "/dev/loop%llu", procid); if (setup_loop_device(data, size, loopname, &loopfd) == -1) return -1; source = loopname; } mkdir(target, 0777); char opts[256]; memset(opts, 0, sizeof(opts)); if (strlen(mount_opts) > (sizeof(opts) - 32)) { } strncpy(opts, mount_opts, sizeof(opts) - 32); if (strcmp(fs, "iso9660") == 0) { flags |= MS_RDONLY; } else if (strncmp(fs, "ext", 3) == 0) { bool has_remount_ro = false; char* remount_ro_start = strstr(opts, "errors=remount-ro"); if (remount_ro_start != NULL) { char after = *(remount_ro_start + strlen("errors=remount-ro")); char before = remount_ro_start == opts ? '\0' : *(remount_ro_start - 1); has_remount_ro = ((before == '\0' || before == ',') && (after == '\0' || after == ',')); } if (strstr(opts, "errors=panic") || !has_remount_ro) strcat(opts, ",errors=continue"); } else if (strcmp(fs, "xfs") == 0) { strcat(opts, ",nouuid"); } res = mount(source, target, fs, flags, opts); if (res == -1) { err = errno; goto error_clear_loop; } res = open(target, O_RDONLY | O_DIRECTORY); if (res == -1) { err = errno; goto error_clear_loop; } if (change_dir) { res = chdir(target); if (res == -1) { err = errno; } } error_clear_loop: if (need_loop_device) { ioctl(loopfd, LOOP_CLR_FD, 0); close(loopfd); } errno = err; return res; } static void setup_common() { if (mount(0, "/sys/fs/fuse/connections", "fusectl", 0, 0)) { } } static void setup_binderfs() { if (mkdir("/dev/binderfs", 0777)) { } if (mount("binder", "/dev/binderfs", "binder", 0, NULL)) { } if (symlink("/dev/binderfs", "./binderfs")) { } } static void loop(); static void sandbox_common() { prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0); setsid(); struct rlimit rlim; rlim.rlim_cur = rlim.rlim_max = (200 << 20); setrlimit(RLIMIT_AS, &rlim); rlim.rlim_cur = rlim.rlim_max = 32 << 20; setrlimit(RLIMIT_MEMLOCK, &rlim); rlim.rlim_cur = rlim.rlim_max = 136 << 20; setrlimit(RLIMIT_FSIZE, &rlim); rlim.rlim_cur = rlim.rlim_max = 1 << 20; setrlimit(RLIMIT_STACK, &rlim); rlim.rlim_cur = rlim.rlim_max = 128 << 20; setrlimit(RLIMIT_CORE, &rlim); rlim.rlim_cur = rlim.rlim_max = 256; setrlimit(RLIMIT_NOFILE, &rlim); if (unshare(CLONE_NEWNS)) { } if (mount(NULL, "/", NULL, MS_REC | MS_PRIVATE, NULL)) { } if (unshare(CLONE_NEWIPC)) { } if (unshare(0x02000000)) { } if (unshare(CLONE_NEWUTS)) { } if (unshare(CLONE_SYSVSEM)) { } typedef struct { const char* name; const char* value; } sysctl_t; static const sysctl_t sysctls[] = { {"/proc/sys/kernel/shmmax", "16777216"}, {"/proc/sys/kernel/shmall", "536870912"}, {"/proc/sys/kernel/shmmni", "1024"}, {"/proc/sys/kernel/msgmax", "8192"}, {"/proc/sys/kernel/msgmni", "1024"}, {"/proc/sys/kernel/msgmnb", "1024"}, {"/proc/sys/kernel/sem", "1024 1048576 500 1024"}, }; unsigned i; for (i = 0; i < sizeof(sysctls) / sizeof(sysctls[0]); i++) write_file(sysctls[i].name, sysctls[i].value); } static int wait_for_loop(int pid) { if (pid < 0) exit(1); int status = 0; while (waitpid(-1, &status, __WALL) != pid) { } return WEXITSTATUS(status); } static void drop_caps(void) { struct __user_cap_header_struct cap_hdr = {}; struct __user_cap_data_struct cap_data[2] = {}; cap_hdr.version = _LINUX_CAPABILITY_VERSION_3; cap_hdr.pid = getpid(); if (syscall(SYS_capget, &cap_hdr, &cap_data)) exit(1); const int drop = (1 << CAP_SYS_PTRACE) | (1 << CAP_SYS_NICE); cap_data[0].effective &= ~drop; cap_data[0].permitted &= ~drop; cap_data[0].inheritable &= ~drop; if (syscall(SYS_capset, &cap_hdr, &cap_data)) exit(1); } static int do_sandbox_none(void) { if (unshare(CLONE_NEWPID)) { } int pid = fork(); if (pid != 0) return wait_for_loop(pid); setup_common(); sandbox_common(); drop_caps(); if (unshare(CLONE_NEWNET)) { } write_file("/proc/sys/net/ipv4/ping_group_range", "0 65535"); setup_binderfs(); loop(); exit(1); } uint64_t r[1] = {0xffffffffffffffff}; void loop(void) { intptr_t res = 0; memcpy((void*)0x20000240, "hfs\000", 4); memcpy((void*)0x20000200, "./file0\000", 8); memcpy( (void*)0x20000880, "\x78\x9c\xec\xdd\xc1\x6a\x13\x41\x1c\xc7\xf1\xdf\x4c\x62\x13\xb5\xd4\xb5" "\xad\x08\xe2\xa9\x5a\xf0\x24\x6d\xbd\x88\x17\xa1\xe4\x21\x3c\x89\xda\x44" "\x28\x2e\x15\xb4\x82\x7a\xb1\x7a\x16\x1f\xc0\xbb\xaf\xe0\x43\x78\x12\x5f" "\x40\x4f\x9e\x7c\x80\xdc\x56\x66\x76\xd2\x6c\x92\xdd\x6c\x1a\x68\x37\x4d" "\xbe\x1f\x48\xd8\x6e\xe6\x3f\xf3\x9f\xec\x6e\x76\xfe\x81\x12\x01\x58\x58" "\xbb\xad\xdf\xdf\xee\xfd\x75\x0f\x23\xd5\x54\x93\xf4\x40\xb2\x92\x9a\x52" "\x5d\xd2\x35\x5d\x6f\xbe\x39\x38\xdc\x3f\x8c\x3b\xed\x71\x1d\xd5\x7c\x84" "\x7b\x18\xa5\x91\x66\xa4\xcd\xde\x41\x27\x2f\xd4\xc5\xf9\x88\x20\x72\x7f" "\xd5\xb5\x9c\xdd\x87\xd3\xd1\x4c\x92\xe4\x4f\xd5\x49\x60\x46\x1c\x8d\xec" "\xb1\x52\x23\x5c\x9d\xee\xb3\x21\xbd\x56\xe7\xc0\xe8\x4c\x17\x8b\xe9\xaa" "\xab\xb7\x5a\xa9\x3a\x0f\x00\x40\xb5\x4c\x7a\x7f\xb7\xe1\x3e\xbf\x1c\xd6" "\xef\xd6\x4a\x9b\xe1\xb6\x3f\x57\xf7\xff\x6e\xd5\x09\x54\x2c\x73\xff\xf7" "\x55\x56\x62\xdc\xf1\xbd\xe2\x5f\xea\xd7\x7b\xbe\x84\x73\xaf\xdb\x5e\x95" "\x38\xcd\x58\x4b\x4a\xcf\xac\xda\x40\x02\x65\x55\xa5\xcf\xc5\x5e\x7c\xbe" "\x1f\x77\xee\xee\xbd\x8c\xdb\x56\x9f\xf4\x30\xc8\x34\x5b\xf7\xcf\xed\xf4" "\xd4\xed\xc9\x66\xfb\x71\xb4\xeb\x8d\x9c\xda\x74\x8c\xe9\xe7\x7e\xd9\xcf" "\xe1\x82\x9b\xc3\x4e\x41\xfe\x6b\x13\x8e\xf8\xe1\xe4\xa3\xe7\x33\x3f\xcc" "\x4f\xf3\xd8\x44\xfa\xaa\xf6\xf1\xfa\xaf\x9e\x18\x77\x98\xfc\x91\x8a\x86" "\x8e\x54\x9a\xff\x56\x71\x8f\x7e\x96\x51\xda\xaa\x60\x96\x57\xfd\x20\x37" "\xc2\x08\x41\xc9\xfb\xda\x1c\x4c\x23\x6b\x29\xf4\x39\xf0\x05\x41\x54\x96" "\xa7\x8f\x5a\x1d\x8a\x4a\x67\xb7\x5d\x12\xb5\x96\x1b\xb5\x53\x12\xb5\x3e" "\x1c\xd5\x3f\x9b\x8b\x23\x4f\x9b\xf9\x62\x1e\x99\x0d\xfd\xd3\x77\xb5\x32" "\xeb\x7f\xeb\xde\xed\x4d\x4d\x72\x65\xba\x36\xbe\x65\x38\x33\xc6\xce\xa7" "\xee\x5b\x46\xd9\x5d\x47\x37\x73\x5b\xda\x93\xcf\x05\x53\xfb\xac\x67\xba" "\xaf\x95\xd7\xef\xde\xbf\x78\x1a\xc7\x9d\x57\x6c\x2c\xd0\x46\xef\x24\x98" "\x95\x7c\xd8\x18\xd8\x68\x68\x06\xd2\xa8\xf6\xe3\x09\x67\xa3\x7f\xd0\xab" "\xce\x04\x15\x71\xeb\x2e\x93\xd6\x7f\x99\x7a\x65\xcb\x97\x48\xee\x29\x1a" "\xb3\x4e\x4f\xca\x3a\xcf\xf4\xb8\x5d\x50\x1b\xac\xfa\xe7\x4b\xc5\x15\x5c" "\x6e\xb7\x85\x15\xdc\xa4\x35\xd7\xad\x3b\xd2\xed\xc9\x47\x8c\x42\x9e\x73" "\xc2\xb4\xf4\x4b\x4f\xf8\xfe\x1f\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\xe0\xbc\x39\x8b\x7f\x27\x18\x1e\xb3\x51\xcd\x54\x01\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x38\xb7\x76" "\x5b\xbd\x5f\xe4\xe1\xf7\x7f\x81\x45\xf3\x3f\x00\x00\xff\xff\x32\x2e\x79" "\xb9", 595); syz_mount_image(0x20000240, 0x20000200, 0x2804000, 0x20000000, 1, 0x253, 0x20000880); memcpy((void*)0x20000380, "./file1\000", 8); res = syscall(__NR_openat, 0xffffff9c, 0x20000380ul, 0x2a41ul, 0ul); if (res != -1) r[0] = res; memcpy( (void*)0x20004200, "\x74\xef\xc4\xc4\x19\xfd\xb8\xd6\x6b\x12\xa7\xbb\xf3\x71\xd0\x56\xad\x6f" "\x01\xe9\x76\x2d\x70\x40\x1d\x1c\x9d\x33\x1b\x48\xb9\x25\xe9\xe6\xa7\x75" "\x9a\xbb\x20\x6b\x9b\x18\xbf\xc3\xf3\xf9\x6a\xdb\x2b\x37\xc2\x12\x1e\xf2" "\x1e\x91\xba\xc7\x68\xdd\x33\xdf\x29\x64\x9d\xa1\xd8\x2e\x82\x6a\x55\xc4" "\xd6\x20\xb6\xf5\x10\xda\xee\x26\x00\x4b\x74\x1c\x95\x1d\x52\x8d\x80\x6e" "\xfb\xe0\x0c\x43\x9f\x2d\xf4\x6d\x3a\xdf\x8b\xe2\x4e\x28\x0b\x94\x8a\x49" "\xaf\xd1\x7d\x56\x43\x7c\x6e\x75\x2d\x84\xf9\x9b\xf3\x7a\x88\xf0\xc5\x44" "\x88\xdd\x13\xb8\x48\xf2\x38\x1d\x7d\x2a\xec\xb6\x8e\xd1\x67\x62\xe4\xa3" "\xc1\xa8\x47\x56\x53\x64\xb9\xf1\xaf\x92\xc9\xc8\x9e\x06\xe8\x9f\xe6\x17" "\x9c\xb7\x07\x8a\x74\x2c\xb9\x68\xa9\xf0\x9c\xc6\x90\xdc\x47\x3d\xf2\x9d" "\x6a\xd9\xaf\x58\x79\xe9\xa2\x61\x8c\x63\x70\x21\x17\xa3\xa6\x3d\x3a\x42" "\x36\xba\xee\x86\xf5\xf4\x52\xe9\x66\x3a\x79\x53\x06\xda\xbb\x97\xdb\x88" "\x43\x48\xab\x43\x7b\xdc\x13\xb7\xcf\xb0\x3e\xff\x1c\xf2\x16\xf0\x9d\x21" "\x07\x8e\x18\x52\xfc\x7c\x96\x41\x3d\x9d\x65\xc5\x2c\xe9\xba\xa6\xbc\x26" "\xde\x7f\x02\x87\x38\xa1\x71\x20\xde\x30\xa4\x33\xc9\xc3\xc8\xe2\x76\xf3" "\xae\x5e\x18\xa1\xf9\x57\x67\xff\xfe\x8e\x98\xb0\xc3\xf1\x34\xf1\x22\x63" "\xb0\x1c\x36\x86\x6d\x4e\x0e\x85\x6c\xc1\x4e\xcf\x50\x27\x9a\xdb\x94\x38" "\xc6\x21\x9c\x49\xca\xe9\x73\xd8\xe7\xfa\xf3\x3d\xcd\xeb\x96\xd7\xef\x7e" "\x89\xae\x82\x8c\xb9\x1d\xf2\x29\x39\x30\x7b\xb1\xf7\xfb\x73\x92\xe1\xe2" "\x4f\x6b\x63\x16\x6b\x89\x93\x7c\x00\xeb\x8f\xea\x02\x45\xcd\x93\xe4\xaa" "\x80\x31\x60\xbd\x71\xc1\xa0\xbb\xb6\xb8\x28\x5d\x8a\xb6\x54\x48\x5a\xb9" "\x85\xf1\xdd\x2e\xb9\xab\xf5\x31\x31\xa9\x68\x0d\xca\xfe\x40\x00\xd3\xea" "\x52\x8d\xd5\x2a\xba\x3e\x4f\xf6\xa3\x88\x3e\xc6\x14\x25\x3d\x56\x27\xbd" "\x91\x52\x2d\x88\x11\x28\x32\x8e\xd1\xe0\x09\x07\xfa\x6c\xc4\x8c\xec\x52" "\x68\xbb\xed\xd8\x5e\xc0\x2d\x8b\xac\x31\x83\x46\x0d\xd1\xa2\x7f\xbc\x06" "\xb5\x64\x24\x73\xa4\x1a\x6c\xbf\xb0\x7f\x53\xde\xab\x24\x73\xb3\x7c\x3d" "\x10\xa1\x25\xd6\x10\xf1\xb9\xea\x5c\x83\xe7\xd4\x62\x04\x8f\x25\xfc\x1e" "\x79\x29\x5e\xef\xf7\x50\xa2\x3f\xaf\x5d\x54\x27\x58\xc4\x21\xbb\x06\x73" "\x50\x4c\x9d\xba\xe2\x95\x9f\x77", 512); syscall(__NR_write, r[0], 0x20004200ul, 0xffe00ul); memcpy((void*)0x20000380, "./file1\000", 8); syscall(__NR_openat, 0xffffff9c, 0x20000380ul, 0x2a41ul, 0ul); } int main(void) { syscall(__NR_mmap, 0x1ffff000ul, 0x1000ul, 0ul, 0x32ul, -1, 0ul); syscall(__NR_mmap, 0x20000000ul, 0x1000000ul, 7ul, 0x32ul, -1, 0ul); syscall(__NR_mmap, 0x21000000ul, 0x1000ul, 0ul, 0x32ul, -1, 0ul); do_sandbox_none(); return 0; }