// https://syzkaller.appspot.com/bug?id=ee595bf9e099fff0610828e37bbbcdb7a2933f58 // 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 279 #endif #ifndef __NR_mmap #define __NR_mmap 222 #endif #ifndef __NR_openat #define __NR_openat 56 #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) { errno = EMSGSIZE; return -1; } 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) { if (strstr(opts, "errors=panic") || strstr(opts, "errors=remount-ro") == 0) 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); } void loop(void) { memcpy((void*)0x20000240, "hfs\000", 4); memcpy((void*)0x20000280, "./file0\000", 8); *(uint64_t*)0x20000440 = 0; sprintf((char*)0x20000448, "%023llo", (long long)-1); memcpy( (void*)0x2000045f, "\x2c\x63\x6f\x64\x65\x70\x61\x67\x65\x3d\x63\x70\x38\x36\x32\x2c\x71\x75" "\x69\x65\x74\x2c\x63\x63\x65\x61\x74\x4f\x72\x3d\x2a\xac\x42\x31\x2c\x63" "\x72\x65\x61\x74\x6f\x72\x3d\x31\x96\x4f\x59\x2c\x91\x6f\x63\x68\x61\x72" "\x73\x65\x74\x3d\x6d\x69\x57\x82\x0e\x46\x4e\x01\x00\x00\x80\x00\x00\x00" "\x00\x3d\x30\x78\x30\x30\x30\xb0\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30" "\x30\x33\x2c\x75\x69\x64\x3d\xa1\xed\xc2\x1f\x00\x89\x9b\x55\xa2\x4e\x57" "\xf1\xe6\x26\x0c\xf8\xa9\x32\xbf\xbb\xf2\xb5\x98\x4a\x6b\xeb\xa7\x83\xe7" "\x13\x8f\xd4\x68\x4f\xe3\x80\xf2\xe0\x6d\x57\x47\x0d\x77\xcd\x42\x66\x88" "\xd8\x10\x06\x00\xe6\x5c\x46\xb1\x90\x3b\x6d\x8a\x98\x10\x76\xbe\x5b\x19" "\x8f\x2c\x41\x4f\xed\x5d\xfd\xca\x0a\x05\x32\xf4\x54\x3a\x31\x60\x29\x60" "\xec\xd9\x0a\xaa\xfc\xab\xa3\xb6\xfd\x56\xd8\x83\x21\x7d\xc7\xcf\xba\xdd" "\x73\xaa\xd6\x54\x3f\xfe\x6b\x62\x91\xff\x98\x16\x0e\x55\x09\x5a\x7e\xe8" "\x7a\x52\xf2\xdc\x9e\x6b\x3a\x6d\x14\x04\xfd\xf8\x93\xe8\x84\x00\xbe\xc7" "\x50\xf9\x6e\x61\x72\x2b\x56\x87\xc2\xb3\x3b\xdb\x6c\x10\xc0\xe5\xf3\x30" "\x3b\x91\x9a\xf0\x75\xbc\x8d\x83\x56\xda\xa4\xd4\x36\xb8\x57\x58\x7a\xcc" "\xed\xd5\xfe\xa2\xb1\xef\x8b\x3d\x36\x34\x1d\x5b\xb8\xff\xd9\xe0\xab\x07" "\xd1\x64\x2e\xac\x57\x95\x28\xe8\x47\xeb\x0a\x34\xa8\xb2\x1b\x21\x40\x77" "\x81\xf6\xa1\x68\xea\x2f\xa7\x14\xae\x8d\x37\x0c\x76\x6d\x04", 321); sprintf((char*)0x200005a0, "%023llo", (long long)-1); *(uint64_t*)0x200005b7 = 0; memcpy( (void*)0x200005c0, "\x78\x9c\xec\xdd\x4f\x6b\x13\x41\x18\xc7\xf1\xdf\x4c\xa2\x46\x5b\xe2\xf6" "\x8f\x08\xe2\xa9\x5a\xf0\x24\x6d\xbd\x88\x17\x41\xf2\x22\x3c\x89\xda\x44" "\x28\x86\x0a\x5a\x41\x3d\x15\xcf\xe2\x0b\xf0\xee\x5b\xf0\x45\x78\x12\xdf" "\x80\x9e\x3c\xf5\x05\xe4\xb6\x32\xb3\x13\xb3\x8d\xbb\xd9\x34\x34\x99\x34" "\xfd\x7e\x20\xcb\x36\x3b\xcf\xce\x33\xdd\xd9\xee\x3c\x81\x12\x01\x38\xb7" "\x1e\xb5\x7e\x7d\xbd\xf7\xc7\xbd\x8c\x54\x53\x4d\xd2\x03\xc9\x4a\x6a\x48" "\xf5\xac\x4d\xe3\xed\xfe\xc1\xde\x41\xb7\xd3\x1e\x75\xa2\x9a\x8f\x70\x2f" "\xa3\x2c\xd2\xfc\xd7\x66\x77\xbf\x53\x14\xea\xe2\xfa\x7d\x39\x89\xfb\xa9" "\xae\xe5\xfc\x7b\x98\x8e\x34\x4d\xd3\xdf\xb1\x93\x40\x74\xfe\xee\x2f\x60" "\xa5\x4b\xe1\xee\xf4\xc7\x1b\x33\xcf\x6c\x3a\x0e\x63\x27\x10\x99\xe9\xa9" "\xa7\x77\x6a\xc6\xce\x03\x00\x10\x57\x78\xfe\xdb\xf0\x9c\x5f\x0e\xeb\x77" "\x6b\xa5\xcd\xf0\xd8\x5f\xa8\xe7\x7f\x2f\x76\x02\x91\xe5\x9e\xff\xbe\xca" "\x4a\x8d\xbb\xbe\x57\xfd\xa1\x41\xbd\xe7\x4b\x38\x77\xdc\xf6\xab\xc4\x49" "\xfa\xba\xa8\x6c\x66\x1d\x5b\x60\x9a\xaa\xaa\xd2\xe7\x62\x2f\xbf\xd8\xeb" "\x76\xee\xee\xbe\xea\xb6\xad\x3e\xea\x61\x90\x6b\xb6\xee\xb7\xed\x6c\xea" "\xf6\x55\x64\xbb\x51\x50\x9b\x8e\x30\xf9\xd8\x97\xfc\x18\x2e\xb8\x31\xec" "\x94\xe4\xbf\x76\xba\x3d\x56\x33\xdf\xcd\x0f\xf3\xc4\x24\xfa\xa2\xf6\xbf" "\xf5\x5f\x3d\x35\xee\x32\xf9\x2b\x95\x0c\x5d\xa9\x2c\xff\xad\xf2\x33\xfa" "\x51\x26\x59\xab\x92\x51\xae\xf8\x4e\x6e\x84\x1e\x82\x8a\x51\x36\x8a\x2b" "\x12\xf5\x67\xd4\x8a\x8e\x7f\x40\x90\x54\xe5\xe9\xa3\x56\x87\xa2\xb2\xd1" "\x6d\x57\x44\xad\x15\x46\xed\x54\x44\xad\x0f\x47\x0d\x66\x73\x79\xe4\xb4" "\x99\xcf\xe6\xb1\xd9\xd0\x91\xbe\xa9\x95\x5b\xff\x5b\xf7\xdb\xde\xd4\x38" "\x77\xa6\x6b\xe3\x5b\x86\x99\x31\x72\x3c\x75\xdf\x32\xc9\xbf\x75\x78\xb3" "\xb0\xa5\x3d\xf9\x58\x30\xb1\x4f\x7a\xae\xfb\x6a\xbe\x79\xff\xe1\xe5\xb3" "\x6e\xb7\xf3\xfa\x5c\xed\x1c\x35\xe7\x22\x8d\x68\x3b\xfd\x49\x30\x2f\xf9" "\xb0\x33\x7f\x3b\x71\xff\x3c\x61\x36\x06\x17\x3d\x76\x26\x88\xc4\xad\xbb" "\x4c\x56\xff\xe5\xea\x95\x2d\x5f\x22\xb9\x4d\x32\x62\x9d\x9e\x56\x9d\x3c" "\x77\xc6\xed\x92\xda\x60\xd5\x6f\xaf\x9c\xa8\x82\x5b\x2a\xaf\xe0\xc6\xad" "\xb9\x6e\xdd\x91\x6e\x8f\xdf\x63\x12\xf2\x5c\x10\xa6\xa5\x9f\x7a\xca\xe7" "\xff\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x67\xcd" "\x2c\xfe\x9d\x20\xf6\x18\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x38\xeb\x2a\xbf\xff\xf7\x9a\xae\xf3\xfd\xbf\xc0\x62" "\xfa\x1b\x00\x00\xff\xff\xb0\x0e\x7f\x41", 586); syz_mount_image(0x20000240, 0x20000280, 0x4000, 0x20000440, 2, 0x24a, 0x200005c0); memcpy((void*)0x20000100, "cpuacct.usage_percpu_user\000", 26); syscall(__NR_openat, 0xffffff9c, 0x20000100ul, 0x275aul, 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; }