// https://syzkaller.appspot.com/bug?id=47918174613db46c53bdf674594b8eb5db1881c5 // 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 #ifndef __NR_memfd_create #define __NR_memfd_create 319 #endif static unsigned long long procid; static void sleep_ms(uint64_t ms) { usleep(ms * 1000); } static uint64_t current_time_ms(void) { struct timespec ts; if (clock_gettime(CLOCK_MONOTONIC, &ts)) exit(1); return (uint64_t)ts.tv_sec * 1000 + (uint64_t)ts.tv_nsec / 1000000; } static void use_temporary_dir(void) { char tmpdir_template[] = "./syzkaller.XXXXXX"; char* tmpdir = mkdtemp(tmpdir_template); if (!tmpdir) exit(1); if (chmod(tmpdir, 0777)) exit(1); if (chdir(tmpdir)) exit(1); } static bool write_file(const char* file, const char* what, ...) { char buf[1024]; va_list args; va_start(args, what); vsnprintf(buf, sizeof(buf), what, args); va_end(args); buf[sizeof(buf) - 1] = 0; int len = strlen(buf); int fd = open(file, O_WRONLY | O_CLOEXEC); if (fd == -1) return false; if (write(fd, buf, len) != len) { int err = errno; close(fd); errno = err; return false; } close(fd); return true; } //% This code is derived from puff.{c,h}, found in the zlib development. The //% original files come with the following copyright notice: //% Copyright (C) 2002-2013 Mark Adler, all rights reserved //% version 2.3, 21 Jan 2013 //% This software is provided 'as-is', without any express or implied //% warranty. In no event will the author be held liable for any damages //% arising from the use of this software. //% Permission is granted to anyone to use this software for any purpose, //% including commercial applications, and to alter it and redistribute it //% freely, subject to the following restrictions: //% 1. The origin of this software must not be misrepresented; you must not //% claim that you wrote the original software. If you use this software //% in a product, an acknowledgment in the product documentation would be //% appreciated but is not required. //% 2. Altered source versions must be plainly marked as such, and must not be //% misrepresented as being the original software. //% 3. This notice may not be removed or altered from any source distribution. //% Mark Adler madler@alumni.caltech.edu //% BEGIN CODE DERIVED FROM puff.{c,h} #define MAXBITS 15 #define MAXLCODES 286 #define MAXDCODES 30 #define MAXCODES (MAXLCODES + MAXDCODES) #define FIXLCODES 288 struct puff_state { unsigned char* out; unsigned long outlen; unsigned long outcnt; const unsigned char* in; unsigned long inlen; unsigned long incnt; int bitbuf; int bitcnt; jmp_buf env; }; static int puff_bits(struct puff_state* s, int need) { long val = s->bitbuf; while (s->bitcnt < need) { if (s->incnt == s->inlen) longjmp(s->env, 1); val |= (long)(s->in[s->incnt++]) << s->bitcnt; s->bitcnt += 8; } s->bitbuf = (int)(val >> need); s->bitcnt -= need; return (int)(val & ((1L << need) - 1)); } static int puff_stored(struct puff_state* s) { s->bitbuf = 0; s->bitcnt = 0; if (s->incnt + 4 > s->inlen) return 2; unsigned len = s->in[s->incnt++]; len |= s->in[s->incnt++] << 8; if (s->in[s->incnt++] != (~len & 0xff) || s->in[s->incnt++] != ((~len >> 8) & 0xff)) return -2; if (s->incnt + len > s->inlen) return 2; if (s->outcnt + len > s->outlen) return 1; for (; len--; s->outcnt++, s->incnt++) { if (s->in[s->incnt]) s->out[s->outcnt] = s->in[s->incnt]; } return 0; } struct puff_huffman { short* count; short* symbol; }; static int puff_decode(struct puff_state* s, const struct puff_huffman* h) { int first = 0; int index = 0; int bitbuf = s->bitbuf; int left = s->bitcnt; int code = first = index = 0; int len = 1; short* next = h->count + 1; while (1) { while (left--) { code |= bitbuf & 1; bitbuf >>= 1; int count = *next++; if (code - count < first) { s->bitbuf = bitbuf; s->bitcnt = (s->bitcnt - len) & 7; return h->symbol[index + (code - first)]; } index += count; first += count; first <<= 1; code <<= 1; len++; } left = (MAXBITS + 1) - len; if (left == 0) break; if (s->incnt == s->inlen) longjmp(s->env, 1); bitbuf = s->in[s->incnt++]; if (left > 8) left = 8; } return -10; } static int puff_construct(struct puff_huffman* h, const short* length, int n) { int len; for (len = 0; len <= MAXBITS; len++) h->count[len] = 0; int symbol; for (symbol = 0; symbol < n; symbol++) (h->count[length[symbol]])++; if (h->count[0] == n) return 0; int left = 1; for (len = 1; len <= MAXBITS; len++) { left <<= 1; left -= h->count[len]; if (left < 0) return left; } short offs[MAXBITS + 1]; offs[1] = 0; for (len = 1; len < MAXBITS; len++) offs[len + 1] = offs[len] + h->count[len]; for (symbol = 0; symbol < n; symbol++) if (length[symbol] != 0) h->symbol[offs[length[symbol]]++] = symbol; return left; } static int puff_codes(struct puff_state* s, const struct puff_huffman* lencode, const struct puff_huffman* distcode) { static const short lens[29] = {3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 15, 17, 19, 23, 27, 31, 35, 43, 51, 59, 67, 83, 99, 115, 131, 163, 195, 227, 258}; static const short lext[29] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 0}; static const short dists[30] = { 1, 2, 3, 4, 5, 7, 9, 13, 17, 25, 33, 49, 65, 97, 129, 193, 257, 385, 513, 769, 1025, 1537, 2049, 3073, 4097, 6145, 8193, 12289, 16385, 24577}; static const short dext[30] = {0, 0, 0, 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7, 8, 8, 9, 9, 10, 10, 11, 11, 12, 12, 13, 13}; int symbol; do { symbol = puff_decode(s, lencode); if (symbol < 0) return symbol; if (symbol < 256) { if (s->outcnt == s->outlen) return 1; if (symbol) s->out[s->outcnt] = symbol; s->outcnt++; } else if (symbol > 256) { symbol -= 257; if (symbol >= 29) return -10; int len = lens[symbol] + puff_bits(s, lext[symbol]); symbol = puff_decode(s, distcode); if (symbol < 0) return symbol; unsigned dist = dists[symbol] + puff_bits(s, dext[symbol]); if (dist > s->outcnt) return -11; if (s->outcnt + len > s->outlen) return 1; while (len--) { if (dist <= s->outcnt && s->out[s->outcnt - dist]) s->out[s->outcnt] = s->out[s->outcnt - dist]; s->outcnt++; } } } while (symbol != 256); return 0; } static int puff_fixed(struct puff_state* s) { static int virgin = 1; static short lencnt[MAXBITS + 1], lensym[FIXLCODES]; static short distcnt[MAXBITS + 1], distsym[MAXDCODES]; static struct puff_huffman lencode, distcode; if (virgin) { lencode.count = lencnt; lencode.symbol = lensym; distcode.count = distcnt; distcode.symbol = distsym; short lengths[FIXLCODES]; int symbol; for (symbol = 0; symbol < 144; symbol++) lengths[symbol] = 8; for (; symbol < 256; symbol++) lengths[symbol] = 9; for (; symbol < 280; symbol++) lengths[symbol] = 7; for (; symbol < FIXLCODES; symbol++) lengths[symbol] = 8; puff_construct(&lencode, lengths, FIXLCODES); for (symbol = 0; symbol < MAXDCODES; symbol++) lengths[symbol] = 5; puff_construct(&distcode, lengths, MAXDCODES); virgin = 0; } return puff_codes(s, &lencode, &distcode); } static int puff_dynamic(struct puff_state* s) { static const short order[19] = {16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15}; int nlen = puff_bits(s, 5) + 257; int ndist = puff_bits(s, 5) + 1; int ncode = puff_bits(s, 4) + 4; if (nlen > MAXLCODES || ndist > MAXDCODES) return -3; short lengths[MAXCODES]; int index; for (index = 0; index < ncode; index++) lengths[order[index]] = puff_bits(s, 3); for (; index < 19; index++) lengths[order[index]] = 0; short lencnt[MAXBITS + 1], lensym[MAXLCODES]; struct puff_huffman lencode = {lencnt, lensym}; int err = puff_construct(&lencode, lengths, 19); if (err != 0) return -4; index = 0; while (index < nlen + ndist) { int symbol; int len; symbol = puff_decode(s, &lencode); if (symbol < 0) return symbol; if (symbol < 16) lengths[index++] = symbol; else { len = 0; if (symbol == 16) { if (index == 0) return -5; len = lengths[index - 1]; symbol = 3 + puff_bits(s, 2); } else if (symbol == 17) symbol = 3 + puff_bits(s, 3); else symbol = 11 + puff_bits(s, 7); if (index + symbol > nlen + ndist) return -6; while (symbol--) lengths[index++] = len; } } if (lengths[256] == 0) return -9; err = puff_construct(&lencode, lengths, nlen); if (err && (err < 0 || nlen != lencode.count[0] + lencode.count[1])) return -7; short distcnt[MAXBITS + 1], distsym[MAXDCODES]; struct puff_huffman distcode = {distcnt, distsym}; err = puff_construct(&distcode, lengths + nlen, ndist); if (err && (err < 0 || ndist != distcode.count[0] + distcode.count[1])) return -8; return puff_codes(s, &lencode, &distcode); } static int puff(unsigned char* dest, unsigned long* destlen, const unsigned char* source, unsigned long sourcelen) { struct puff_state s = { .out = dest, .outlen = *destlen, .outcnt = 0, .in = source, .inlen = sourcelen, .incnt = 0, .bitbuf = 0, .bitcnt = 0, }; int err; if (setjmp(s.env) != 0) err = 2; else { int last; do { last = puff_bits(&s, 1); int type = puff_bits(&s, 2); err = type == 0 ? puff_stored(&s) : (type == 1 ? puff_fixed(&s) : (type == 2 ? puff_dynamic(&s) : -1)); if (err != 0) break; } while (!last); } *destlen = s.outcnt; return err; } //% END CODE DERIVED FROM puff.{c,h} #define ZLIB_HEADER_WIDTH 2 static int puff_zlib_to_file(const unsigned char* source, unsigned long sourcelen, int dest_fd) { if (sourcelen < ZLIB_HEADER_WIDTH) return 0; source += ZLIB_HEADER_WIDTH; sourcelen -= ZLIB_HEADER_WIDTH; const unsigned long max_destlen = 132 << 20; void* ret = mmap(0, max_destlen, PROT_WRITE | PROT_READ, MAP_PRIVATE | MAP_ANON, -1, 0); if (ret == MAP_FAILED) return -1; unsigned char* dest = (unsigned char*)ret; unsigned long destlen = max_destlen; int err = puff(dest, &destlen, source, sourcelen); if (err) { munmap(dest, max_destlen); errno = -err; return -1; } if (write(dest_fd, dest, destlen) != (ssize_t)destlen) { munmap(dest, max_destlen); return -1; } return munmap(dest, max_destlen); } static int setup_loop_device(unsigned char* data, unsigned long size, const char* loopname, int* loopfd_p) { int err = 0, loopfd = -1; int memfd = syscall(__NR_memfd_create, "syzkaller", 0); if (memfd == -1) { err = errno; goto error; } if (puff_zlib_to_file(data, size, memfd)) { err = errno; goto error_close_memfd; } loopfd = open(loopname, O_RDWR); if (loopfd == -1) { err = errno; goto error_close_memfd; } if (ioctl(loopfd, LOOP_SET_FD, memfd)) { if (errno != EBUSY) { err = errno; goto error_close_loop; } ioctl(loopfd, LOOP_CLR_FD, 0); usleep(1000); if (ioctl(loopfd, LOOP_SET_FD, memfd)) { err = errno; goto error_close_loop; } } close(memfd); *loopfd_p = loopfd; return 0; error_close_loop: close(loopfd); error_close_memfd: close(memfd); error: errno = err; return -1; } static void reset_loop_device(const char* loopname) { int loopfd = open(loopname, O_RDWR); if (loopfd == -1) { return; } if (ioctl(loopfd, LOOP_CLR_FD, 0)) { } close(loopfd); } static long syz_mount_image(volatile long fsarg, volatile long dir, volatile long flags, volatile long optsarg, volatile long change_dir, volatile unsigned long size, volatile long image) { unsigned char* data = (unsigned char*)image; int res = -1, err = 0, need_loop_device = !!size; char* mount_opts = (char*)optsarg; char* target = (char*)dir; char* fs = (char*)fsarg; char* source = NULL; char loopname[64]; if (need_loop_device) { int loopfd; memset(loopname, 0, sizeof(loopname)); snprintf(loopname, sizeof(loopname), "/dev/loop%llu", procid); if (setup_loop_device(data, size, loopname, &loopfd) == -1) return -1; close(loopfd); source = loopname; } mkdir(target, 0777); char opts[256]; memset(opts, 0, sizeof(opts)); if (strlen(mount_opts) > (sizeof(opts) - 32)) { } strncpy(opts, mount_opts, sizeof(opts) - 32); if (strcmp(fs, "iso9660") == 0) { flags |= MS_RDONLY; } else if (strncmp(fs, "ext", 3) == 0) { bool has_remount_ro = false; char* remount_ro_start = strstr(opts, "errors=remount-ro"); if (remount_ro_start != NULL) { char after = *(remount_ro_start + strlen("errors=remount-ro")); char before = remount_ro_start == opts ? '\0' : *(remount_ro_start - 1); has_remount_ro = ((before == '\0' || before == ',') && (after == '\0' || after == ',')); } if (strstr(opts, "errors=panic") || !has_remount_ro) strcat(opts, ",errors=continue"); } else if (strcmp(fs, "xfs") == 0) { strcat(opts, ",nouuid"); } res = mount(source, target, fs, flags, opts); if (res == -1) { err = errno; goto error_clear_loop; } res = open(target, O_RDONLY | O_DIRECTORY); if (res == -1) { err = errno; goto error_clear_loop; } if (change_dir) { res = chdir(target); if (res == -1) { err = errno; } } error_clear_loop: if (need_loop_device) reset_loop_device(loopname); errno = err; return res; } #define FS_IOC_SETFLAGS _IOW('f', 2, long) static void remove_dir(const char* dir) { int iter = 0; DIR* dp = 0; retry: const int umount_flags = MNT_FORCE | UMOUNT_NOFOLLOW; while (umount2(dir, umount_flags) == 0) { } dp = opendir(dir); if (dp == NULL) { if (errno == EMFILE) { exit(1); } exit(1); } struct dirent* ep = 0; while ((ep = readdir(dp))) { if (strcmp(ep->d_name, ".") == 0 || strcmp(ep->d_name, "..") == 0) continue; char filename[FILENAME_MAX]; snprintf(filename, sizeof(filename), "%s/%s", dir, ep->d_name); while (umount2(filename, umount_flags) == 0) { } struct stat st; if (lstat(filename, &st)) exit(1); if (S_ISDIR(st.st_mode)) { remove_dir(filename); continue; } int i; for (i = 0;; i++) { if (unlink(filename) == 0) break; if (errno == EPERM) { int fd = open(filename, O_RDONLY); if (fd != -1) { long flags = 0; if (ioctl(fd, FS_IOC_SETFLAGS, &flags) == 0) { } close(fd); continue; } } if (errno == EROFS) { break; } if (errno != EBUSY || i > 100) exit(1); if (umount2(filename, umount_flags)) exit(1); } } closedir(dp); for (int i = 0;; i++) { if (rmdir(dir) == 0) break; if (i < 100) { if (errno == EPERM) { int fd = open(dir, O_RDONLY); if (fd != -1) { long flags = 0; if (ioctl(fd, FS_IOC_SETFLAGS, &flags) == 0) { } close(fd); continue; } } if (errno == EROFS) { break; } if (errno == EBUSY) { if (umount2(dir, umount_flags)) exit(1); continue; } if (errno == ENOTEMPTY) { if (iter < 100) { iter++; goto retry; } } } exit(1); } } static void kill_and_wait(int pid, int* status) { kill(-pid, SIGKILL); kill(pid, SIGKILL); for (int i = 0; i < 100; i++) { if (waitpid(-1, status, WNOHANG | __WALL) == pid) return; usleep(1000); } DIR* dir = opendir("/sys/fs/fuse/connections"); if (dir) { for (;;) { struct dirent* ent = readdir(dir); if (!ent) break; if (strcmp(ent->d_name, ".") == 0 || strcmp(ent->d_name, "..") == 0) continue; char abort[300]; snprintf(abort, sizeof(abort), "/sys/fs/fuse/connections/%s/abort", ent->d_name); int fd = open(abort, O_WRONLY); if (fd == -1) { continue; } if (write(fd, abort, 1) < 0) { } close(fd); } closedir(dir); } else { } while (waitpid(-1, status, __WALL) != pid) { } } static void reset_loop() { char buf[64]; snprintf(buf, sizeof(buf), "/dev/loop%llu", procid); int loopfd = open(buf, O_RDWR); if (loopfd != -1) { ioctl(loopfd, LOOP_CLR_FD, 0); close(loopfd); } } static void setup_test() { prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0); setpgrp(); write_file("/proc/self/oom_score_adj", "1000"); if (symlink("/dev/binderfs", "./binderfs")) { } } static void execute_one(void); #define WAIT_FLAGS __WALL static void loop(void) { int iter = 0; for (;; iter++) { char cwdbuf[32]; sprintf(cwdbuf, "./%d", iter); if (mkdir(cwdbuf, 0777)) exit(1); reset_loop(); int pid = fork(); if (pid < 0) exit(1); if (pid == 0) { if (chdir(cwdbuf)) exit(1); setup_test(); execute_one(); exit(0); } int status = 0; uint64_t start = current_time_ms(); for (;;) { if (waitpid(-1, &status, WNOHANG | WAIT_FLAGS) == pid) break; sleep_ms(1); if (current_time_ms() - start < 5000) continue; kill_and_wait(pid, &status); break; } remove_dir(cwdbuf); } } uint64_t r[2] = {0xffffffffffffffff, 0xffffffffffffffff}; void execute_one(void) { intptr_t res = 0; if (write(1, "executing program\n", sizeof("executing program\n") - 1)) { } memcpy((void*)0x20000440, "ext4\000", 5); memcpy((void*)0x20000100, 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"\x74\xb4\xf9\x1d\xfe\x83\xb1\x27\xad\xcd\xcd\x2f\x3c\x79\x7a\xee\xbd\xf3" "\xd3\xcd\xef\xca\x0f\xc7\x60\x5a\xac\x74\x0d\xb5\xac\x87\x8e\xe7\x6b\xc3" "\x45\x7e\xa2\x2d\x7f\x3c\x5f\x37\xfe\xbc\xf2\xff\x46\x7e\x74\x6a\xae\x36" "\xdd\xef\xe0\xa1\xe4\xf6\x76\x19\xff\x99\xdf\x2b\xfd\x6e\x1d\xb0\xe3\xfc" "\x5e\x0b\xca\xcb\xf8\x87\xf2\x32\xfe\xa1\xbc\x8c\x7f\x28\x2f\xe3\x1f\xca" "\xab\xd3\xf8\xff\xb0\x0f\xed\x00\x6e\x3d\x9f\xff\x50\x5e\xc6\x3f\x94\x97" "\xf1\x0f\xe5\x65\xfc\x43\x29\x6d\xe7\x77\xfd\x12\x65\x4e\x44\x7a\x5b\x34" "\x43\x62\x87\x12\xfd\x7e\x67\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\xe8\x8d\xbf\x03\x00\x00\xff\xff\xf0\x75\xe6\x67", 1057); syz_mount_image(/*fs=*/0x20000440, /*dir=*/0x20000100, /*flags=*/0, /*opts=*/0x200002c0, /*chdir=*/0, /*size=*/0x421, /*img=*/0x20000900); memcpy((void*)0x200000c0, "./file1\000", 8); memcpy((void*)0x200001c0, "trusted.overlay.upper\000", 22); *(uint8_t*)0x20000d40 = 0; *(uint8_t*)0x20000d41 = 0xfb; *(uint8_t*)0x20000d42 = 1; *(uint8_t*)0x20000d43 = 0; *(uint8_t*)0x20000d44 = 0; memcpy((void*)0x20000d45, "\x10\xd1\xf5\x41\x88\xa7\x9d\x16\x92\x3c\x02\xb6\x56\x88\xc1\x1a", 16); memcpy( (void*)0x20000d55, "\x02\xe2\xcf\x9b\x6f\xc1\x06\x4b\x52\x0f\xd0\x04\x32\xb8\xe1\xab\x30\xcf" "\x0b\xdb\xd0\xff\x92\x28\x70\xcd\xa9\xa6\x6e\x2d\xdc\x47\x28\x11\x5c\x17" "\x54\x53\x84\x20\x1d\xc0\x29\x42\x1b\x56\xb6\x87\x79\xb8\x34\x2f\x14\x5c" "\x91\xdc\x38\xec\x75\x99\xdd\x2a\x61\xcf\xd9\x72\xaa\xf5\xfd\x77\x24\x17" "\xa7\x58\xcc\x81\xf7\x49\xc6\x57\x39\x32\x6f\xe7\xac\x5e\xd4\x4c\x18\x81" "\xcf\x49\xb0\xef\x7b\xca\xb3\x2a\xb7\xa7\x10\x2e\xc2\x9f\xee\x39\x14\x26" "\x30\xa9\xb4\xe8\xde\x5a\x9a\x54\xd4\xa5\x82\xda\x45\xfe\x38\xd9\x16\x36" "\x37\x8f\x29\x7e\x37\x2d\xd7\xed\x46\x9c\x7c\xf5\x0c\x5f\x62\x06\xbe\xed" "\x3b\xad\xf1\x58\x37\xa2\x43\x5e\xb3\xb2\xd6\xe8\x7e\x3c\xcb\x48\x22\x9f" "\x0c\x25\x21\xfe\xa1\xf6\x96\x3f\x6f\xf5\x0e\xfc\xd9\x49\xb0\x9a\x4c\xb1" "\x4e\x21\xda\x70\xa6\xc9\xf5\x8b\xd0\x75\x82\x36\x1d\x16\x34\xb0\xe5\xd3" "\xec\xc5\x20\xb3\x90\x7d\xf5\xb6\xa2\x27\xf6\x42\xb0\xd6\x36\x18\x1d\x8f" "\x5c\xce\x45\xd9\xd3\x86\x21\x82\x70\xa6\xfd\x92\xfe\x58\x8a\x54\x94\xf3" "\x02\x7a\x56\xdc\xbf\x55\x75\x59\x89\xdd\x83\x3b\x93\x23\x24\x39\x13\x53" "\xd5\xac\x63\xa5\x6f\x96\x31\x61\xb3\x09\xcf\x78\xc0\x78\x5a\x16\xd1\x3f" "\xda\x99\xe4\x5a\x94\xd1\xcd\xaf\x3c\xae\xfc\xb5\x49\x07\x92\xfe\xee\xe2" "\xfe\xde\xab\xa8\xca\x45\xe9\x04\x40\x77\x8f\x80\xa3\xe2\xd9\xcb\x15\x31" "\x5f\x80\x29\x14\x1c\xbf\x49\x5b\x53\x7b\x54\x79\x8d\x8f\x8e\x3e\x36\xcb" "\xe8\x1c\xc4\x9d\x00\x85\x83\x73\x3f\x36\xd6\xa9\x6c\x86\xb9\x92\x3b\x68" "\xc2\xfd\x52\xc7\x32\x44\x6d\xaa\x3d\x63\xac\x4c\x5b\xb3\x73\xfe\x4f\x75" "\xa9\x9c\x76\xa0\x0f\xf7\x3c\x55\x0f\x26\x87\xdb\x15\xdd\x2d\x59\x36\xaf" "\xf0\x2d\x85\xb9\xaf\x6e\xbf\x94\x28\xf1\xd6\x62\xbd\x0b\xd2\xb3\xf4\x29" "\x4f\x8b\xbd\xd4\xcc\xba\x63\xfa\x4d\xa8\x36\x43\xd8\xdc\x36\x61\x2f\xb4" "\x38\x6f\x53\xb7\x2a\x7a\xe0\x10\xc4\xc9\xa4\x99\xf4\x3a\x67\x7e\x29\x04" "\xe2\xdd\x11\x0f\xef\xee\xe0\xf6\x5e\xff\x2d\x33\xe7\x21\x7c\x85\x5c\xec" "\x1c\x67\xcf\x41\x27\x76\x74\x66\xb6\x37\x46\xff\x0f\xae\x30\x02\x3b\xd8" "\x51\xe3\x95\xd1\x4a\x5c\xf9\xd4\x3d\x2d\x3f\xc3\xf3\xd6\x74\x30\x2a\x2b" "\x7e\x4d\x44\xf2\x41\x1e\x48\x2d\x7c\xf2\x08\x61\xc7\xfd\xdf\x5b\x32\x99" "\x5f\x6d\xae\xe9\x4d\x35\x85\x87\xba\xf4\x54\x97\x77\x72\x50\x52\x5a\xb3" "\x62\x51\xf3\x58\xb4\xbd\xe7\xe9\x5c\xc3\xac\xab\x49\x6c\x7f\xab\xa6\xe3" "\x20\x9f\xc2\x11\x38\xef\xa5\x30\x9f\x8a\xc9\x4a\xaf\x47\xcf\x73\xb2\x29" "\xbd\xb8\x1d\xd3\xec\x79\xaa\xf4\x67\xf2\x3c\xbb\xd3\xbb\x9d\x61\x3d\x31" "\xc0\x88\x17\xe3\x02\x2a\xa9\x55\x15\x45\x14\x60\xac\x64\x4b\x83\xd0\x17" "\xe6\xd3\xe1\x7a\x59\xc7\x54\x56\x0e\x44\x8e\xac\xc9\xd8\x8b\x3c\x22\x28" "\x54\x42\xb4\x15\x0d\x23\xcb\x65\xfd\x4e\x55\x6d\x32\xb8\x28\x2c\xb3\x05" "\x27\xbf\x43\x53\x43\xe4\xce\xeb\x3e\x65\x66\x6b\x3e\xdb\x2f\x9a\xfd\x4a" "\x1a\x60\xf1\x0c\x83\x3b\x40\x29\x27\xf4\xc3\x3d\x4e\x68\x3f\xf6\xf7\x48" "\x4c\xd2\x54\xb1\x5b\x96\x47\x77\xb0\x60\x71\x71\xbf\xde\x9c\xa5\x5d\x2d" "\xab\xf5\x0c\x72\xa1\xc2\x9f\xd6\xd9\xb4\x5d\xdd\x4b\x74\xe2\xa4\x2a\xe2" "\x49\xdc\x2f\x99\x85\x22\x3d\xb1\x8e\xcf\x30\x72\x26\x5e\xdc\x9c\x09\x5a" "\xe0\xf7\x41\xf0\x0c\x51\x1c\x6c\x74\xad\x3f\xcd\x6e\x7e\x8e\x38\x2d\x67" "\x2f\x12\xc5\x97\x7f\x11\xc6\x56\xbb\x5c\xdb\xfc\x1b\x7a\x71\xe5\x2e\xab" "\xd2\x6d\x89\x31\x00\x1b\xda\xbf\x5b\x14\x76\x9f\x91\x15\x87\xe8\xfc\x80" "\x51\xc8\xd8\xcf\x62\xbd\xe5\x27\x7f\x36\x22\x07\xa5\xa2\xb8\x52\xe2\xf6" "\x1b\x50\x3f\x33\xc7\x76\x8e\xd2\xd3\x1c\x99\x42\x97\x99\x71\x6a\x20\x10" "\x28\x9c\x99\xc2\xc7\xb8\x53\xe9\xc6\xdb\x48\xbc\x19\x25\x18\xf4\x20\xa2" "\xfa\xd4\xac\x2d\x5f\x1a\x66\xeb\xd1\x35\x48\xfb\xe5\x3e\x36\x2a\x97\x5c" "\xb6\xb3\x8b\x4a\x66\x9b\x1f\x96\x4d\xcd\x8f\x29\x99\xea\x0d\x0f\x0a\xbb" "\x19\x02\x78\x9a\xdd\xb1\xf3\x19\x3f\xae\x6c\xdf\x84\x68\x46\xae\x33\x1f" "\x0d\xf0\xd8\x90\xf0\xb0\xcb\x57\x2a\x5e\x63\xeb\x31\x54\x4c\xde\x61\xf3" "\x72\x9c\x0a\x67\x36\xd2\xd3\xe7\xc7\xa7\xb7\x54\x96\xc5\xec\x68\xef\x4b" "\x59\x46\xa6\x6e\xdb\x46\x85\x11\xcb\xcf\x67\x5d\xbf\xab\x5a\x12\x06\x3f" "\x7b\x7a\xbc\x8c\x08\x2a\x5a\xc7\x1d\x00\x09\xeb\xc8\x34\x6e\x11\xa5\xce" "\xe9\xca\xd7\xe8\x58\xb9\xbf\xfd\x76\x12\xd5\x29\x2a\x06\x79\xc1\x15\xf2" "\x9c\x66\x37\x58\x03\xb7\x75\x9a\xff\x6a\x0b\xc4\x7e\x20\xa0\xab\x17\x8c" "\x0a\xc9\xee\x08\xe9\x18\x53\xca\x5c\xee\x1f\x69\xd7\x8e\x59\x2c\x53\x5b" "\xf3\x90\x61\x7c\xbb\xfc\xdb\x58\xed\xfd\xb7\xea\x11\x14\x6b\x6e\x32\x9b" "\x60\x0f\xbc\x97\x37\x2e\xcb\xf4\x56\x42\x3e\x84\x19\x58\x7d\xa3\x25\x76" "\xd7\xdc\x77\xaf\xc8\x06\x02\x49\xdf\x61\xac\xdc\x23\x3f\x6e\x74\xe4\xe0" "\xc8\x57\x5c\xd2\x87\x86\x32\xd6\x24\xbf\xd4\x0f\xf4\xea\x25\x2c\x6b\xbb" "\xc7\x1a\xe5\x66\xca\xd8\x86\xba\x8f\xc7\x19\xf0\x06\xc7\x0a\x5e\x17\x59" "\x13\x69\xd0\x77\xc6\xb4\x8f\x26\x18\x45\x46\x03\xce\xa8\x69\x94\x28\x84" "\x60\x1d\xe4\x71\xa7\xdf\xe2\xde\x0e\x6f\xe8\xa8\x81\xf1\x7b\x8c\x43\xc2" "\xcc\xf2\xa4\x76\xc6\x25\x45\x26\x1e\x73\xc5\xe6\x91\x8d\x7e\x46\x7a\x7e" "\x9e\xd9\x50\xac\x7a\xa2\xda\xa0\xf8\x9a\xca\xdd\x88\x20\xa4\x4e\x28\x38" "\x57\x0b\xe8\xda\x8f\x47\x23\x0a\x8e\x71\x48\x05\xd9\x78\xdd\xae\xa8\xee" "\x92\x99\xa1\x6f\x8b\xbb\xcf\x88\xab\xd1\x94\x9c\xe6\x4e\x31\xa1\x26\xb3" "\xda\x5a\x95\x89\xbf\x4a\x38\xd1\x03\xe5\x03\x3f\x29\x5d\x2d\x7c\x4a\x7c" "\x35\x71\x33\xe7\x19\x2d\x56\x8b\x71\xe8\x2a\x29\x18\xfd\xe8\x6e\x59\xbc" "\xa6\xe3\xde\xda\xcc\x9e\xc3\x41\x92\xa4\x34\xfd\xb5\x25\x25\x70\x2c\x24" "\xe7\x58\xb5\x31\xbd\xb2\x46\x37\x80\x92\xc0\x54\x36\x6c\x3b\x2b\x3f\xb4" "\xc2\x9a\xd2\xa3\xf0\xd3\xed\x7a\xdb\x77\xfd\x4b\x2a\x62\xe0\x1d\x86\x0c" "\x31\xd1\x72\x39\xc4\x19\x74\x82\xa3\xae\x99\x80\x24\x87\x61\x49\xf2\x02" "\xc5\x62\x27\x65\xac\xa7\x22\xee\x64\xdf\xe5\xe9\xbb\x8d\xd3\x64\x2f\x7a" "\xc6\x00\x4c\x3d\x04\x9c\xa0\xf6\x05\xc1\x0f\x52\x26\x03\x22\xba\x82\xa5" "\x3e\x32\x12\x82\x76\xc1\x62\xe5\x53\xf7\x9f\xbd\x73\xec\x5e\x90\xf9\x0a" "\x79\xf2\x19\x6e\x7e\x47\x16\x57\xca\x16\x0e\x14\xc6\x98\xcc\xa6\x77\xcb" "\x51\x0d\xab\xdf\x53\x06\x78\x4c\x82\x9b\x30\xf1\x66\x03\xf8\xc0\x25\x42" "\x03\xd2\x94\x9f\x0e\x3d\xb8\x5d\xbf\xb7\x91\x3f\x84\xee\x82\x2b\x50\x45" "\xfe\xcd\x67\x64\xb5\x98\x69\x94\xc7\xf2\x95\x19\x3d\xc5\xb1\x34\x4e\x03" "\x69\x8e\x24\x29\x40\x31\xd6\x74\x86\x5a\x34\x26\xce\xff\xb8\x64\xc2\x43" "\x4a\xc8\x84\xe0\x67\x30\x98\x24\xa6\xdd\x97\xb5\x8d\xae\x9e\x5e\xe8\x0e" "\x52\x1a\xcd\x1a\x08\x02\x68\x43\xb3\x7e\x80\x36\x05\x11\x30\x02\xee\x1e" "\x2d\x15\xd3\x5f\xcf\x96\xd3\x4a\x81\xa2\x69\xd2\xdb\x9c\xc6\x22\x65\x1f" "\x40\x2c\xa3\x6e\x8b\x95\x2e\x62\x63\xaf\xa9\x82\xf0\x8e\x43\x5c\x94\x01" "\xb6\xb2\x35\xb2\x27\x1d\x8e\x7c\x5e\xa0\x4a\x86\xd2\x3c\xcf\xf3\xf9\x43" "\x56\x9a\x7c\xe0\x9b\xdc\x8f\xb9\x08\x5c\x8c\x80\x46\xe7\x15\x01\x4b\x38" "\xd6\x46\x0a\xa8\xe3\x48\x62\xef\x20\xee\x44\xb8\xa0\x35\xe7\x5c\xdf\x64" "\x00\x67\x9c\xc5\xcd\x33\x2a\x2b\xc8\xc2\x9a\x7c\x6b\xf0\xb2\xaa\x95\xbd" "\x7d\x83\x44\x23\xef\x6c\xa7\xdb\x2b\xf9\x22\x58\x1c\x02\xe2\x88\x80\xdd" "\xb6\x5d\xfd\x2c\x2f\xca\x6d\x87\xd5\xcd\x54\x85\x93\xff\xcd\x2f\x84\x95" "\xbf\xc4\xff\xcf\x34\x57\xf3\x98\xa0\x94\xfa\xef\x8d\xe5\xf1\x3d\x47\x95" "\xad\x79\x15\x31\x6e\x58\xbb\x76\x45\xe7\xc1\x67\x7b\xf9\x48\xc2\xd6\x80" "\x47\x57\x19\x28\x91\x68\xaf\x02\x28\xde\x8a\x2a\x73\x58\x59\x69\x54\x4c" "\x03\xd6\x00\x8e\x95\x81\x55\xbc\x5f\x73\xf2\xdf\x4c\xa8\x83\x0e\x3d\x77" "\xe9\xde\x29\x81\xd3\x6a\x2d\x0e\xd9\x3f\x09\xae\xde\x94\x43\xb2\x71\x60" "\x44\xa4\x21\x58\x37\x6d\x89\xe8\x22\x13\xb1\xe9\x9f\x63\xa7\x31\x24\x65" "\x84\x2e\x35\x71\x8d\x92\x00\x9a\x8f\xe7\x89\x2e\xfd\x1e\x10\x55\xbd\xaa" "\xa4\xc8\xbe\x26\xb0\x9e\x3c\x58\xb7\x77\x99\xa9\xdb\xc1\xde\xc3\x76\x55" "\x6a\x89\x2a\xce\x9e\xec\x73\x64\x0e\x0b\x11\x0c\x9e\x3c\x1b\x92\xfd\xcf" "\x17\x64\x89\x61\x84\xca\x4e\x0d\x6b\xbf\x1d\x84\x53\x24\xe1\x67\xc6\x8e" "\x3e\x32\x15\x59\x80\x7f\x20\xc5\x3a\xbd\x36\x52\xd9\xc1\xf2\x79\xce\x2f" "\x2e\xa1\xc3\x48\x2e\x34\xd2\xfb\x45\x4b\x5d\x79\xaa\xea\x9c\x7f\x10\xb3" "\xfa\xa3\xa5\x93\x0c\xd1\xc2\x83\x58\x4f\x9c\xf4\xe7\x81\xd4\x21\x21\x6f" "\x5c\xdb\xf4\xfe\x16\x05\x77\x26\xd9\xe3\x07\x6b\xae\xe5\xf2\xee\xa5\xd3" "\x5b\x6d\x57\x91\xd5\xfb\x77\x59\x2c\x4e\xa5\x5c\xda\x85\x56\x05\x39\x91" "\x49\xf9\x17\x63\x73\x99\x4f\x59\xde\x54\xe1\x92\x96\xc0\x52\xb5\x4a\x9d" "\xe5\x6a\x83\x11\x59\xfb\x1a\x2a\xe5\x8f\xdb\x75\x61\x87\x67\xc8\x37\x4d" "\x5f\x76\x76\x4c\x18\x28\x7a\xb7\x6c\xd2\xbc\xab\x84\xc9\x5d\x85\xdb\xd0" "\x2a\xb6\x32\x57\xce\x9f\x4c\x09\x6e\xb3\x4c\x58\x7e\x6b\xd2\x65\x17\x01" "\x55\x54\xce\xb4\xf5\x37\x96\x9a\x02\xf9\xb5\x50\x0a\x5a\xbb\x8a\x74\x97" "\xb9\xea\xac\xc7\x3f\x52\x4a\x9d\x71\x81\xa9\x47\x56\xb5\xbb\x33\x03\xb6" "\x6f\xdd\xc2\x44\xe5\xc6\xb1\x11\x80\x83\xc6\xe0", 2028); syscall(__NR_lsetxattr, /*path=*/0x200000c0ul, /*name=*/0x200001c0ul, /*val=*/0x20000d40ul, /*size=*/0x801ul, /*flags=*/0ul); memcpy((void*)0x20000280, "cgroup.controllers\000", 19); res = syscall(__NR_openat, /*fd=*/0xffffff9c, /*file=*/0x20000280ul, /*flags=*/0x275aul, /*mode=*/0ul); if (res != -1) r[0] = res; memcpy((void*)0x200001c0, "cpuset.effective_cpus\000", 22); res = syscall(__NR_openat, /*fd=*/0xffffff9c, /*file=*/0x200001c0ul, /*flags=*/0x275aul, /*mode=*/0ul); if (res != -1) r[1] = res; *(uint32_t*)0x20000000 = 0x2880008; *(uint32_t*)0x20000004 = r[0]; *(uint64_t*)0x20000008 = 0; *(uint64_t*)0x20000010 = 0; *(uint64_t*)0x20000018 = 0; *(uint64_t*)0x20000020 = 0; syscall(__NR_ioctl, /*fd=*/r[1], /*cmd=*/0xc028660f, /*arg=*/0x20000000ul); } int main(void) { syscall(__NR_mmap, /*addr=*/0x1ffff000ul, /*len=*/0x1000ul, /*prot=*/0ul, /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/-1, /*offset=*/0ul); syscall(__NR_mmap, /*addr=*/0x20000000ul, /*len=*/0x1000000ul, /*prot=PROT_WRITE|PROT_READ|PROT_EXEC*/ 7ul, /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/-1, /*offset=*/0ul); syscall(__NR_mmap, /*addr=*/0x21000000ul, /*len=*/0x1000ul, /*prot=*/0ul, /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/-1, /*offset=*/0ul); use_temporary_dir(); loop(); return 0; }