// https://syzkaller.appspot.com/bug?id=537bba34f7a7a6e57fb969990f5d9868fd4e9714 // 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, 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_gadgetfs(); 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/newroot/syz-inputs", 0700)) exit(1); if (mount("/syz-inputs", "./syz-tmp/newroot/syz-inputs", NULL, bind_mount_flags | MS_RDONLY, 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_gadgetfs(); setup_binderfs(); setup_fusectl(); } static void setup_gadgetfs() { if (mkdir("/dev/gadgetfs", 0777)) { } if (mount("gadgetfs", "/dev/gadgetfs", "gadgetfs", 0, NULL)) { } } 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*)0x200000000080, "ext4\000", 5); memcpy((void*)0x200000000140, "./file1\000", 8); memcpy((void*)0x200000001740, "errors=remount-ro", 17); *(uint8_t*)0x200000001751 = 0x2c; memcpy((void*)0x200000001752, "nodiscard", 9); *(uint8_t*)0x20000000175b = 0x2c; memcpy((void*)0x20000000175c, "noquota", 7); *(uint8_t*)0x200000001763 = 0x2c; memcpy((void*)0x200000001764, "jqfmt=vfsv0", 11); *(uint8_t*)0x20000000176f = 0x2c; memcpy((void*)0x200000001770, "noblock_validity", 16); *(uint8_t*)0x200000001780 = 0x2c; memcpy((void*)0x200000001781, "resgid", 6); *(uint8_t*)0x200000001787 = 0x3d; sprintf((char*)0x200000001788, "0x%016llx", (long long)0); *(uint8_t*)0x20000000179a = 0x2c; memcpy((void*)0x20000000179b, "sysvgroups", 10); *(uint8_t*)0x2000000017a5 = 0x2c; memcpy((void*)0x2000000017a6, "usrquota", 8); *(uint8_t*)0x2000000017ae = 0x2c; memcpy((void*)0x2000000017af, "usrquota", 8); *(uint8_t*)0x2000000017b7 = 0x2c; *(uint8_t*)0x2000000017b8 = 0; memcpy( (void*)0x200000000d80, "\x78\x9c\xec\xdd\xdf\x6b\x1c\x5b\x1d\x00\xf0\xef\x4c\xb2\xb7\xbf\x72\x4d" "\xae\xfa\x70\xbd\xe0\x6d\xb1\x95\xb4\x68\x77\x93\xc6\xb6\xc1\x87\x5a\x41" "\xec\x53\xc1\x5a\xdf\x6b\x4c\x36\x21\x64\x93\x0d\xd9\x4d\xdb\x84\x22\x29" "\xbe\x2b\x88\xa8\xe0\x93\x4f\xbe\x08\xfe\x01\x82\xf4\x4f\x10\xa1\xa0\xef" "\x52\x45\x11\x6d\xf5\xc1\x07\x75\x65\x67\x67\x6b\x1b\x77\x93\x94\x6e\x76" "\x2e\xc9\xe7\x03\xd3\x39\x33\x67\x77\xbf\xdf\xd3\xb0\x67\xe6\xcc\x1c\x76" "\x02\x38\xb6\xce\x45\xc4\xcd\x88\x18\x89\x88\x4b\x11\x31\x9e\xef\x4f\xf3" "\xe5\x56\xbb\xfe\x4e\xe7\x75\x2f\x9e\x3f\x9a\x6f\x2f\x49\xb4\x5a\x77\xff" "\x9a\x44\x92\xef\xeb\x7e\x56\x92\xaf\xcf\x44\xc4\x4e\x44\x9c\x8c\x88\xaf" "\xdf\x8a\xf8\x56\xf2\xff\x71\x1b\x5b\xdb\x2b\x73\xb5\x5a\x75\x23\xdf\xae" "\x34\x57\xd7\x2b\x8d\xad\xed\xcb\xcb\xab\x73\x4b\xd5\xa5\xea\xda\xcc\xcc" "\xf4\xb5\xd9\xeb\xb3\x57\x67\xa7\x06\xd2\xce\x89\x88\xb8\xf1\x95\x3f\xfe" "\xf0\x7b\x3f\xfb\xea\x8d\x5f\x7d\xfe\xc1\xef\xef\xfd\xf9\xe2\xb7\xdb\x69" "\x8d\xe5\xf5\xaf\xb6\x63\x90\x3a\x4d\x2f\x65\xff\x17\x5d\xa3\x11\xb1\x71" "\x18\xc1\x0a\x30\x92\xaf\x4b\x7d\xea\xbf\x3b\x32\xc4\x64\x00\x00\xd8\x57" "\xfb\x1c\xff\xe3\x11\xf1\x99\xec\xfc\x7f\x3c\x46\xb2\xb3\x53\x00\x00\x00" "\xe0\x28\x69\x7d\x69\x2c\xfe\x95\x44\xb4\x00\x00\x00\x80\x23\x2b\xcd\xe6" "\xc0\x26\x69\x39\x9f\x0b\x30\x16\x69\x5a\x2e\x77\xe6\xf0\x7e\x32\x4e\xa7" "\xb5\x7a\xa3\xf9\xb9\xc5\xfa\xe6\xda\x42\x67\xae\xec\x44\x94\xd2\xc5\xe5" "\x5a\x75\x2a\x9f\x2b\x3c\x11\xa5\xa4\xbd\x3d\x9d\xcf\xb1\xed\x6e\x5f\xd9" "\xb5\x3d\x13\x11\xef\x45\xc4\x0f\xc6\x4f\x65\xdb\xe5\xf9\x7a\x6d\xa1\xe8" "\x8b\x1f\x00\x00\x00\x70\x4c\x9c\xd9\x35\xfe\xff\xc7\x78\x36\xfe\x3f\x51" "\x74\x5e\x00\x00\x00\xc0\x80\x4d\x14\x9d\x00\x00\x00\x00\x70\xe8\x8c\xff" "\x01\x00\x00\xe0\xe8\x33\xfe\x07\x00\x00\x80\x23\xed\x6b\xb7\x6f\xb7\x97" "\x56\xf7\xf9\xd7\x0b\xf7\xb7\x36\x57\xea\xf7\x2f\x2f\x54\x1b\x2b\xe5\xd5" "\xcd\xf9\xf2\x7c\x7d\x63\xbd\xbc\x54\xaf\x2f\x65\xbf\xd9\xb7\xba\xdf\xe7" "\xd5\xea\xf5\xf5\x2f\xc4\xda\xe6\xc3\x4a\xb3\xda\x68\x56\x1a\x5b\xdb\xf7" "\x56\xeb\x9b\x6b\xcd\x7b\xcb\xaf\x3d\x02\x1b\x00\x00\x00\x18\xa2\xf7\xce" "\x3e\xf9\x5d\x12\x11\x3b\x5f\x3c\x95\x2d\x6d\xef\x14\x9d\x14\x30\x14\xc9" "\x3e\xf5\xd9\x43\x42\x9e\xe5\x1b\x7f\x18\x42\x42\xc0\xd0\x8c\x14\x9d\x00" "\x50\x98\xd1\xa2\x13\x00\x0a\x53\x2a\x3a\x01\xa0\x70\xfb\x5d\x07\xe8\x3b" "\x79\xe7\xd7\x83\xcf\x05\x00\x00\x38\x1c\x93\x9f\xea\x7f\xff\xdf\xb5\x01" "\x38\xda\xd2\xa2\x13\x00\x00\x86\xce\xfd\x7f\x38\xbe\x4a\xaf\xcf\x00\xbc" "\x5a\x5c\x26\x40\x51\x3e\xb6\x4f\xfd\xdb\xdf\xff\x6f\xb5\xde\x28\x21\x00" "\x00\x60\xe0\xc6\xb2\x25\x49\xcb\xf9\xbd\xc0\xb1\x48\xd3\x72\x39\xe2\xdd" "\xec\xb1\x00\xa5\x64\x71\xb9\x56\x9d\xca\xc7\x07\xbf\x1d\x2f\x9d\x68\x6f" "\x4f\x67\xef\x4c\xf6\x9d\x33\x0c\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x74\xb4\x5a\x49\xb4\x00\x00\x00\x80" "\x23\x2d\x22\xfd\x53\x92\xfd\x9a\x7f\xc4\xe4\xf8\x85\xb1\xdd\xd7\x07\xde" "\x49\xfe\x39\x9e\xad\x23\xe2\xc1\x4f\xee\xfe\xe8\xe1\x5c\xb3\xb9\x31\xdd" "\xde\xff\xb7\x97\xfb\x9b\x3f\xce\xf7\x5f\x29\xe2\x0a\x06\x00\x00\x00\xb0" "\x5b\x77\x9c\xde\x1d\xc7\x03\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\xc0\x20\xbd\x78\xfe\x68\xbe\xbb\x0c\x33\xee" "\x5f\xbe\x1c\x11\x13\x3d\xe3\x9f\x3d\x99\xad\x4e\x46\x29\x22\x4e\xff\x3d" "\x89\xd1\x57\xde\x97\x44\xc4\xc8\x00\xe2\xef\x3c\x8e\x88\xf7\x7b\xc5\x4f" "\xda\x69\xc5\x44\x74\xb2\xe8\x15\xff\x54\x81\xf1\xd3\x88\x38\x33\x80\xf8" "\x70\x9c\x3d\x69\xf7\x3f\x37\x7b\x7d\xff\xd2\x38\x97\xad\x7b\x7f\xff\x46" "\xf3\xe5\x6d\xf5\xef\xff\xd2\xe8\xf6\x7f\x23\x7d\xfa\x9f\x77\x0f\x18\xe3" "\x83\xa7\xbf\xa8\xf4\x8d\xff\x38\xe2\x83\xd1\xde\xfd\x4f\x37\x7e\xd2\x27" "\xfe\xf9\x03\xc6\xff\xe6\x37\xb6\xb7\xfb\xd5\xb5\x7e\x1a\x31\xd9\xf3\xf8" "\x93\xbc\x16\xab\xd2\x5c\x5d\xaf\x34\xb6\xb6\x2f\x2f\xaf\xce\x2d\x55\x97" "\xaa\x6b\x33\x33\xd3\xd7\x66\xaf\xcf\x5e\x9d\x9d\xaa\x2c\x2e\xd7\xaa\xf9" "\xbf\x3d\x63\x7c\xff\xd3\xbf\xfc\xcf\x5e\xed\x3f\xdd\x27\xfe\xc4\x3e\xed" "\xbf\x70\xc0\xf6\xff\xfb\xe9\xc3\xe7\x9f\xe8\x14\x4b\xbd\xe2\x5f\x3c\xdf" "\xfb\xf8\xfb\x7e\x9f\xf8\x69\x7e\xec\xfb\x6c\x5e\x6e\xd7\x4f\x76\xcb\x3b" "\x9d\xf2\xab\x3e\xfc\xf9\x6f\x3e\xdc\xab\xfd\x0b\x7d\xda\xff\xf2\xef\xdf" "\xe3\x40\xdb\x8e\x79\xf1\x80\xed\xbf\x74\xe7\x3b\xcf\x0e\xf8\x52\x00\x60" "\x08\x1a\x5b\xdb\x2b\x73\xb5\x5a\x75\xe3\xad\x0a\x83\xfa\x9c\x37\x2c\xa4" "\x51\x40\x50\x85\x43\x2a\x9c\xf8\x68\xa4\xa1\xd0\x29\xec\xd5\x6b\x24\xc3" "\xeb\xa0\x00\x00\x80\x81\xf9\xdf\x49\x7f\xd1\x99\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\xc0\xf1\x35\x8c\x9f\x13\xdb\x1d\x73" "\xa7\x98\xa6\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\xec\xe9\xbf\x01\x00\x00\xff\xff\xf2\x48" "\xd8\xa4", 1244); syz_mount_image(/*fs=*/0x200000000080, /*dir=*/0x200000000140, /*flags=MS_LAZYTIME|MS_MANDLOCK*/ 0x2000040, /*opts=*/0x200000001740, /*chdir=*/0x12, /*size=*/0x4dc, /*img=*/0x200000000d80); memcpy((void*)0x200000000140, "./file0\000", 8); memcpy((void*)0x200000000100, "./file0\000", 8); memcpy((void*)0x200000000040, "incremental-fs\000", 15); syscall(__NR_mount, /*src=*/0x200000000140ul, /*dst=*/0x200000000100ul, /*type=*/0x200000000040ul, /*flags=MS_NOSUID*/ 2ul, /*opts=*/0ul); memcpy((void*)0x2000000000c0, "./file2\000", 8); syscall( __NR_openat, /*fd=*/0xffffff9c, /*file=*/0x2000000000c0ul, /*flags=O_SYNC|O_NONBLOCK|O_DIRECT|O_CREAT|O_CLOEXEC|0x2002*/ 0x187842, /*mode=S_IXOTH|S_IWOTH|S_IROTH|S_IXUSR|S_IRUSR*/ 0x147); } int main(void) { syscall(__NR_mmap, /*addr=*/0x1ffffffff000ul, /*len=*/0x1000ul, /*prot=*/0ul, /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/-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=*/-1, /*offset=*/0ul); syscall(__NR_mmap, /*addr=*/0x200001000000ul, /*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; }