// https://syzkaller.appspot.com/bug?id=fcf0b68b63113416159649a5145d26759b9865ba // autogenerated by syzkaller (https://github.com/google/syzkaller) #define _GNU_SOURCE #include <endian.h> #include <errno.h> #include <fcntl.h> #include <sched.h> #include <setjmp.h> #include <stdarg.h> #include <stdbool.h> #include <stddef.h> #include <stdint.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <sys/ioctl.h> #include <sys/mman.h> #include <sys/mount.h> #include <sys/prctl.h> #include <sys/resource.h> #include <sys/stat.h> #include <sys/syscall.h> #include <sys/time.h> #include <sys/types.h> #include <sys/wait.h> #include <unistd.h> #include <linux/capability.h> #include <linux/loop.h> #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, 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; } static void setup_binderfs(); static void setup_fusectl(); static void sandbox_common_mount_tmpfs(void) { write_file("/proc/sys/fs/mount-max", "100000"); if (mkdir("./syz-tmp", 0777)) exit(1); if (mount("", "./syz-tmp", "tmpfs", 0, NULL)) exit(1); if (mkdir("./syz-tmp/newroot", 0777)) exit(1); if (mkdir("./syz-tmp/newroot/dev", 0700)) exit(1); unsigned bind_mount_flags = MS_BIND | MS_REC | MS_PRIVATE; if (mount("/dev", "./syz-tmp/newroot/dev", NULL, bind_mount_flags, NULL)) exit(1); if (mkdir("./syz-tmp/newroot/proc", 0700)) exit(1); if (mount("syz-proc", "./syz-tmp/newroot/proc", "proc", 0, NULL)) exit(1); if (mkdir("./syz-tmp/newroot/selinux", 0700)) exit(1); const char* selinux_path = "./syz-tmp/newroot/selinux"; if (mount("/selinux", selinux_path, NULL, bind_mount_flags, NULL)) { if (errno != ENOENT) exit(1); if (mount("/sys/fs/selinux", selinux_path, NULL, bind_mount_flags, NULL) && errno != ENOENT) exit(1); } if (mkdir("./syz-tmp/newroot/sys", 0700)) exit(1); if (mount("/sys", "./syz-tmp/newroot/sys", 0, bind_mount_flags, NULL)) exit(1); if (mount("/sys/kernel/debug", "./syz-tmp/newroot/sys/kernel/debug", NULL, bind_mount_flags, NULL) && errno != ENOENT) exit(1); if (mount("/sys/fs/smackfs", "./syz-tmp/newroot/sys/fs/smackfs", NULL, bind_mount_flags, NULL) && errno != ENOENT) exit(1); if (mount("/proc/sys/fs/binfmt_misc", "./syz-tmp/newroot/proc/sys/fs/binfmt_misc", NULL, bind_mount_flags, NULL) && errno != ENOENT) exit(1); if (mkdir("./syz-tmp/pivot", 0777)) exit(1); if (syscall(SYS_pivot_root, "./syz-tmp", "./syz-tmp/pivot")) { if (chdir("./syz-tmp")) exit(1); } else { if (chdir("/")) exit(1); if (umount2("./pivot", MNT_DETACH)) exit(1); } if (chroot("./newroot")) exit(1); if (chdir("/")) exit(1); setup_binderfs(); setup_fusectl(); } static void setup_fusectl() { 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); if (getppid() == 1) exit(1); 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); sandbox_common(); drop_caps(); if (unshare(CLONE_NEWNET)) { } write_file("/proc/sys/net/ipv4/ping_group_range", "0 65535"); sandbox_common_mount_tmpfs(); loop(); exit(1); } void loop(void) { if (write(1, "executing program\n", sizeof("executing program\n") - 1)) { } memcpy((void*)0x200000c0, "exfat\000", 6); memcpy((void*)0x20000580, "./" "file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\000", 257); memcpy((void*)0x20000000, "iocharset", 9); *(uint8_t*)0x20000009 = 0x3d; memcpy((void*)0x2000000a, "cp864", 5); *(uint8_t*)0x2000000f = 0x2c; memcpy((void*)0x20000010, "utf8", 4); *(uint8_t*)0x20000014 = 0x2c; memcpy((void*)0x20000015, "iocharset", 9); *(uint8_t*)0x2000001e = 0x3d; memcpy((void*)0x2000001f, "cp861", 5); *(uint8_t*)0x20000024 = 0x2c; memcpy((void*)0x20000025, "discard", 7); *(uint8_t*)0x2000002c = 0x2c; memcpy((void*)0x2000002d, "fmask", 5); *(uint8_t*)0x20000032 = 0x3d; sprintf((char*)0x20000033, "%023llo", (long long)3); *(uint8_t*)0x2000004a = 0x2c; memcpy((void*)0x2000004b, "gid", 3); *(uint8_t*)0x2000004e = 0x3d; sprintf((char*)0x2000004f, "0x%016llx", (long long)0); *(uint8_t*)0x20000061 = 0x2c; memcpy((void*)0x20000062, "gid", 3); *(uint8_t*)0x20000065 = 0x3d; sprintf((char*)0x20000066, "0x%016llx", (long long)0); *(uint8_t*)0x20000078 = 0x2c; memcpy((void*)0x20000079, "iocharset", 9); *(uint8_t*)0x20000082 = 0x3d; memcpy((void*)0x20000083, "macroman", 8); *(uint8_t*)0x2000008b = 0x2c; memcpy((void*)0x2000008c, "discard", 7); *(uint8_t*)0x20000093 = 0x2c; memcpy((void*)0x20000094, "namecase=1", 10); *(uint8_t*)0x2000009e = 0x2c; *(uint8_t*)0x2000009f = 0; memcpy( (void*)0x20001040, "\x78\x9c\xec\xdc\x0b\x9c\x4e\xd5\xfa\x38\xf0\xe7\x59\x6b\xed\x31\x24\xbd" "\x49\x2e\xc3\x5a\xeb\xd9\xbc\xc9\x65\x99\x24\xc9\x25\x49\x2e\x49\x92\x84" "\x24\xb7\x84\xd0\x24\x47\x12\x12\x43\x6e\x49\x43\x12\x92\xcb\x90\x5c\x86" "\x90\x5c\x26\x26\x8d\xfb\xfd\x7e\x4d\x92\xa4\x49\x92\x90\xdc\x92\xf5\xff" "\x4c\x71\x9c\x4e\xf5\x3f\xe7\xfc\x4e\xbf\xe3\xf7\xfb\xcd\xf3\xfd\x7c\xf6" 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"\x8b\x77\x2d\x5c\x4b\xd7\xd2\xb5\x72\x4f\xb8\xd6\xae\x8d\x6b\xeb\x9e\x74" "\x4f\xba\xf6\xae\xbd\x7b\xca\x3d\xe5\x9e\x76\x1d\xdd\x33\xae\x93\xfb\x8b" "\xeb\xec\x9e\x75\x5d\xdc\x73\xee\x39\xf7\xbc\xeb\xe6\xba\xbb\x1e\xee\x05" "\xd7\xd3\x4d\xcc\xf5\xcb\x7b\x32\xd1\xf5\x75\x7d\x5d\x3f\xd7\xcf\x0d\x70" "\x03\xdc\x20\x37\xc8\x0d\x76\x83\xdd\x10\x37\xc4\x25\xb9\x24\x37\xcc\x0d" "\x73\xc3\xdd\x70\x37\xc2\x8d\x70\x23\xdd\x48\x37\xda\x8d\x76\x63\xdc\x18" "\x37\xd6\x8d\x75\xe3\xdd\x78\x97\xec\x92\xdd\x24\x37\xc9\x4d\x76\x93\xdd" "\x14\x37\xc5\x4d\x73\xd3\x5c\x8a\x4b\x71\x33\xdd\x4c\x37\xcb\xcd\x72\x95" "\x67\xff\x72\x94\x79\x6e\x9e\x5b\xe0\x16\xb8\x54\x97\xea\x16\xb9\xcc\x35" "\x63\x9a\x5b\xe2\x96\xb8\x74\x97\xee\x96\xb9\x65\x6e\x85\x5b\xe1\x56\xb9" "\x55\x6e\x8d\x5b\xe3\xd6\xb9\x75\x6e\x83\xdb\xe0\x36\xb9\x4d\x6e\x8b\xdb" "\xe2\xb6\xb9\x6d\x6e\x87\xdb\xe1\x76\xb9\x5d\x6e\x8f\xdb\xe3\xf6\xfa\xeb" "\x7e\x19\xd4\xed\x77\x07\xdc\x01\x77\xd0\x1d\x74\x87\xdc\x97\x2e\xc3\x7d" "\xe5\x0e\xbb\xaf\xdd\x11\xf7\x8d\x3b\xea\xbe\x75\xc7\xdc\x77\xee\xb8\x3b" "\xe1\x4e\xba\xef\xdd\x29\xf7\x83\x3b\xed\xce\xb8\xb3\xee\x9c\x3b\xef\x7e" "\x74\x17\xdc\x4f\xee\xa2\xf3\x2e\x39\x32\x31\x32\x29\xf2\x76\x64\x72\xe4" "\x9d\xc8\x94\xc8\xd4\xc8\xb4\xc8\xf4\x48\x4a\x64\x46\x64\x66\xe4\xdd\xc8" "\xac\xc8\xec\xc8\x9c\xc8\x7b\x91\xb9\x91\xf7\x23\xf3\x22\xf3\x23\x0b\x22" "\x0b\x23\xa9\x91\x0f\x22\x8b\x22\x8b\x23\x69\x91\x0f\x23\x4b\x22\x1f\x45" "\xd2\x23\x4b\x23\xcb\x22\xcb\x23\x2b\x22\x2b\x23\xde\x17\xdc\x16\xfa\xc2" "\xbe\x88\x8f\xfa\x9b\x7c\x51\x7f\xb3\x2f\xe6\x8b\xfb\x12\xbe\xa4\x77\xbe" "\x94\x8f\xf7\xb7\xf8\xd2\xfe\x56\x5f\xc6\xdf\xe6\xcb\xfa\xdb\x7d\x39\x7f" "\x87\x2f\xef\x2b\xf8\x8a\xfe\x31\xdf\xd4\x37\xf3\xcd\x7d\x0b\xdf\xd2\x3f" "\xee\x5b\xf9\x27\x7c\x6b\xdf\xc6\xb7\xf5\x4f\xfa\x76\xbe\xbd\xef\xe0\x9f" "\xf2\x09\xfe\x69\xdf\xd1\x3f\xe3\x3b\xf9\xbf\xf8\xce\xfe\x59\xdf\xc5\x3f" "\xe7\xbb\xfa\xe7\x7d\x37\xdf\xdd\xf7\xf0\x2f\xf8\x9e\xfe\x45\xdf\xcb\xf7" "\xf6\x89\xbe\x8f\xef\xeb\x5f\xf2\xfd\x7c\x7f\x3f\xc0\x0f\xf4\x83\xfc\xcb" "\x7e\xb0\x7f\xc5\x0f\xf1\xaf\xfa\x24\x3f\xd4\x0f\xf3\xaf\xf9\xe1\xfe\x75" "\x3f\xc2\xbf\xe1\x47\xfa\x51\x7e\x74\xcc\x9b\x7e\xcc\xe5\x5b\x64\x98\xe0" "\x93\xfd\x44\x3f\xc9\xbf\xed\x27\xfb\x77\xfc\x14\x3f\xd5\x4f\xf3\xd3\x7d" "\x8a\x9f\xe1\x67\xfa\x77\xfd\x2c\x3f\xdb\xcf\xf1\xef\xf9\xb9\xfe\x7d\x3f" "\xcf\xcf\xf7\x0b\xfc\x42\x9f\xea\x3f\xf0\x8b\xfc\x62\x9f\xe6\x3f\xf4\x4b" "\xfc\x47\x3e\xdd\x2f\xbd\xfc\x50\xd9\xaf\xf2\xab\xfd\x1a\xbf\xd6\xaf\xf3" "\xeb\xfd\x06\xbf\xd1\x6f\xf2\x9b\xfd\x16\xbf\xd5\x6f\xf3\xdb\xfd\x0e\xbf" "\xd3\xef\xf2\xbb\xfd\x1e\xff\xb1\xdf\xeb\x3f\xf1\xfb\xfc\xa7\x7e\xbf\xff" "\xcc\x1f\xf0\x9f\xfb\x83\xfe\x0b\x7f\xc8\x7f\xe9\x33\xfc\x57\xfe\xb0\xff" "\xda\x1f\xf1\xdf\xf8\xa3\xfe\x5b\x7f\xcc\x7f\xe7\x8f\xfb\x13\xfe\xa4\xff" "\xde\x9f\xf2\x3f\xf8\xd3\xfe\x8c\x3f\xeb\xcf\xf9\xf3\xfe\x47\x7f\xc1\xff" "\xe4\x2f\xf2\x77\xd6\x18\x63\x8c\x31\xc6\xfe\x29\x13\xaf\x34\xc5\xef\xf5" "\xf7\xf9\x9d\xd7\xc4\xdf\xec\xdc\x17\x00\xae\xdd\x5e\x20\xe3\x6f\xfb\x33" "\x57\x94\x1b\xf2\xfe\xd2\xee\x2f\xe2\xda\x45\x00\xe0\xe9\xde\x5d\x1b\x5e" "\xde\xaa\x55\x4b\x4c\x4c\xbc\xb4\x6f\xba\x84\xa0\xc8\x7c\x80\xcb\xff\x12" "\x94\x29\x06\xae\xc4\x4b\xa1\x2d\xb4\x87\x04\x68\x03\xa5\x7f\x77\xfe\xfd" "\x45\xf7\xf3\xf4\x0f\xc6\x8f\xde\x0e\x90\xe3\x6f\x72\x62\xe1\x4a\x7c\x65" "\xfc\xcf\xff\x60\xfc\xc7\x9f\x1c\xbd\xa8\x5c\x78\x36\xf7\xff\x67\xfc\xf9" "\x00\xc5\x8a\x5c\xc9\xc9\x0e\x7f\x8d\xff\xfa\xed\x8a\x36\x50\xe6\x0f\xc6" "\xcf\xd7\xea\x1f\xcc\x3f\xfb\x17\xc9\x00\xad\xff\x26\x27\x27\x5c\x89\xaf" "\xcc\x3f\x1e\x9e\x80\x67\x20\xe1\x57\x7b\x32\xc6\x18\x63\x8c\x31\xc6\x18" "\x63\xbf\xe8\x2f\x2a\x76\xbe\x7c\xff\x79\xf9\x7f\x7c\xfe\xde\xfd\x79\x9c" "\xba\x92\x93\x79\x53\x7b\x39\xfe\x47\xf7\xe7\x8c\x31\xc6\x18\x63\x8c\x31" "\xc6\x18\xbb\xfa\x9e\xed\xde\xe3\xa9\xc7\x13\x12\xda\x74\xfe\xd7\x1b\x55" "\xfe\x4b\x59\xdc\xf8\x9f\xda\xf0\x1e\xe0\xf2\x2b\x0a\x00\xfe\xcd\x01\x01" "\xfe\xe3\x67\xb1\xf5\x3f\x72\xac\xa4\x4b\x6f\x9d\xbf\xef\x5a\x71\xce\x07" "\xf0\x3f\xa3\x94\x7f\x46\xe3\x2a\xff\xc5\xc4\x18\x63\x8c\x31\xc6\x18\xfb" "\xd3\x5d\x59\xf4\xff\xfa\x75\x75\xb5\x26\xc4\x18\x63\x8c\x31\xc6\x18\x63" "\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6" "\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x65\x41\xff\x89\x5f" "\x27\x76\xb5\xcf\x91\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18" "\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31" "\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\xbb" "\xda\xfe\x5f\x00\x00\x00\xff\xff\xf1\x00\x0b\xba", 5394); syz_mount_image(/*fs=*/0x200000c0, /*dir=*/0x20000580, /*flags=MS_NODIRATIME*/ 0x800, /*opts=*/0x20000000, /*chdir=*/3, /*size=*/0x1512, /*img=*/0x20001040); memcpy((void*)0x20000440, "./file0\000", 8); memcpy((void*)0x20000f40, "./" "file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\000", 252); syscall(__NR_rename, /*old=*/0x20000440ul, /*new=*/0x20000f40ul); } 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); const char* reason; (void)reason; do_sandbox_none(); return 0; }