// https://syzkaller.appspot.com/bug?id=3b9200ae0c2ba5087d14d221f2c74c606bf2592f // 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_landlock_add_rule #define __NR_landlock_add_rule 445 #endif #ifndef __NR_landlock_create_ruleset #define __NR_landlock_create_ruleset 444 #endif #ifndef __NR_landlock_restrict_self #define __NR_landlock_restrict_self 446 #endif #ifndef __NR_memfd_create #define __NR_memfd_create 279 #endif #ifndef __NR_mkdirat #define __NR_mkdirat 34 #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) return 0; source += ZLIB_HEADER_WIDTH; sourcelen -= ZLIB_HEADER_WIDTH; const unsigned long max_destlen = 132 << 20; void* ret = mmap(0, max_destlen, PROT_WRITE | PROT_READ, MAP_PRIVATE | MAP_ANON, -1, 0); if (ret == MAP_FAILED) return -1; unsigned char* dest = (unsigned char*)ret; unsigned long destlen = max_destlen; int err = puff(dest, &destlen, source, sourcelen); if (err) { munmap(dest, max_destlen); errno = -err; return -1; } if (write(dest_fd, dest, destlen) != (ssize_t)destlen) { munmap(dest, max_destlen); return -1; } return munmap(dest, destlen); } static int setup_loop_device(unsigned char* data, unsigned long size, const char* loopname, int* loopfd_p) { int err = 0, loopfd = -1; int memfd = syscall(__NR_memfd_create, "syzkaller", 0); if (memfd == -1) { err = errno; goto error; } if (puff_zlib_to_file(data, size, memfd)) { err = errno; goto error_close_memfd; } loopfd = open(loopname, O_RDWR); if (loopfd == -1) { err = errno; goto error_close_memfd; } if (ioctl(loopfd, LOOP_SET_FD, memfd)) { if (errno != EBUSY) { err = errno; goto error_close_loop; } ioctl(loopfd, LOOP_CLR_FD, 0); usleep(1000); if (ioctl(loopfd, LOOP_SET_FD, memfd)) { err = errno; goto error_close_loop; } } close(memfd); *loopfd_p = loopfd; return 0; error_close_loop: close(loopfd); error_close_memfd: close(memfd); error: errno = err; return -1; } static long syz_mount_image(volatile long fsarg, volatile long dir, volatile long flags, volatile long optsarg, volatile long change_dir, volatile unsigned long size, volatile long image) { unsigned char* data = (unsigned char*)image; int res = -1, err = 0, loopfd = -1, need_loop_device = !!size; char* mount_opts = (char*)optsarg; char* target = (char*)dir; char* fs = (char*)fsarg; char* source = NULL; char loopname[64]; if (need_loop_device) { memset(loopname, 0, sizeof(loopname)); snprintf(loopname, sizeof(loopname), "/dev/loop%llu", procid); if (setup_loop_device(data, size, loopname, &loopfd) == -1) return -1; source = loopname; } mkdir(target, 0777); char opts[256]; memset(opts, 0, sizeof(opts)); if (strlen(mount_opts) > (sizeof(opts) - 32)) { } strncpy(opts, mount_opts, sizeof(opts) - 32); if (strcmp(fs, "iso9660") == 0) { flags |= MS_RDONLY; } else if (strncmp(fs, "ext", 3) == 0) { bool has_remount_ro = false; char* remount_ro_start = strstr(opts, "errors=remount-ro"); if (remount_ro_start != NULL) { char after = *(remount_ro_start + strlen("errors=remount-ro")); char before = remount_ro_start == opts ? '\0' : *(remount_ro_start - 1); has_remount_ro = ((before == '\0' || before == ',') && (after == '\0' || after == ',')); } if (strstr(opts, "errors=panic") || !has_remount_ro) strcat(opts, ",errors=continue"); } else if (strcmp(fs, "xfs") == 0) { strcat(opts, ",nouuid"); } res = mount(source, target, fs, flags, opts); if (res == -1) { err = errno; goto error_clear_loop; } res = open(target, O_RDONLY | O_DIRECTORY); if (res == -1) { err = errno; goto error_clear_loop; } if (change_dir) { res = chdir(target); if (res == -1) { err = errno; } } error_clear_loop: if (need_loop_device) { ioctl(loopfd, LOOP_CLR_FD, 0); close(loopfd); } errno = err; return res; } static void setup_common() { if (mount(0, "/sys/fs/fuse/connections", "fusectl", 0, 0)) { } } static void setup_binderfs() { if (mkdir("/dev/binderfs", 0777)) { } if (mount("binder", "/dev/binderfs", "binder", 0, NULL)) { } if (symlink("/dev/binderfs", "./binderfs")) { } } static void loop(); static void sandbox_common() { prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0); setsid(); struct rlimit rlim; rlim.rlim_cur = rlim.rlim_max = (200 << 20); setrlimit(RLIMIT_AS, &rlim); rlim.rlim_cur = rlim.rlim_max = 32 << 20; setrlimit(RLIMIT_MEMLOCK, &rlim); rlim.rlim_cur = rlim.rlim_max = 136 << 20; setrlimit(RLIMIT_FSIZE, &rlim); rlim.rlim_cur = rlim.rlim_max = 1 << 20; setrlimit(RLIMIT_STACK, &rlim); rlim.rlim_cur = rlim.rlim_max = 128 << 20; setrlimit(RLIMIT_CORE, &rlim); rlim.rlim_cur = rlim.rlim_max = 256; setrlimit(RLIMIT_NOFILE, &rlim); if (unshare(CLONE_NEWNS)) { } if (mount(NULL, "/", NULL, MS_REC | MS_PRIVATE, NULL)) { } if (unshare(CLONE_NEWIPC)) { } if (unshare(0x02000000)) { } if (unshare(CLONE_NEWUTS)) { } if (unshare(CLONE_SYSVSEM)) { } typedef struct { const char* name; const char* value; } sysctl_t; static const sysctl_t sysctls[] = { {"/proc/sys/kernel/shmmax", "16777216"}, {"/proc/sys/kernel/shmall", "536870912"}, {"/proc/sys/kernel/shmmni", "1024"}, {"/proc/sys/kernel/msgmax", "8192"}, {"/proc/sys/kernel/msgmni", "1024"}, {"/proc/sys/kernel/msgmnb", "1024"}, {"/proc/sys/kernel/sem", "1024 1048576 500 1024"}, }; unsigned i; for (i = 0; i < sizeof(sysctls) / sizeof(sysctls[0]); i++) write_file(sysctls[i].name, sysctls[i].value); } static int wait_for_loop(int pid) { if (pid < 0) exit(1); int status = 0; while (waitpid(-1, &status, __WALL) != pid) { } return WEXITSTATUS(status); } static void drop_caps(void) { struct __user_cap_header_struct cap_hdr = {}; struct __user_cap_data_struct cap_data[2] = {}; cap_hdr.version = _LINUX_CAPABILITY_VERSION_3; cap_hdr.pid = getpid(); if (syscall(SYS_capget, &cap_hdr, &cap_data)) exit(1); const int drop = (1 << CAP_SYS_PTRACE) | (1 << CAP_SYS_NICE); cap_data[0].effective &= ~drop; cap_data[0].permitted &= ~drop; cap_data[0].inheritable &= ~drop; if (syscall(SYS_capset, &cap_hdr, &cap_data)) exit(1); } static int do_sandbox_none(void) { if (unshare(CLONE_NEWPID)) { } int pid = fork(); if (pid != 0) return wait_for_loop(pid); setup_common(); sandbox_common(); drop_caps(); if (unshare(CLONE_NEWNET)) { } write_file("/proc/sys/net/ipv4/ping_group_range", "0 65535"); setup_binderfs(); loop(); exit(1); } uint64_t r[2] = {0xffffffffffffffff, 0xffffffffffffffff}; void loop(void) { intptr_t res = 0; memcpy((void*)0x20000240, "ext4\000", 5); memcpy((void*)0x20000280, "./mnt\000", 6); memcpy( (void*)0x200002c0, "\x74\x65\x73\x74\x5f\x64\x75\x6d\x6d\x79\x5f\x65\x6e\x63\x72\x79\x70\x74" "\x69\x6f\x6e\x2c\x73\x74\x72\x69\x70\x65\x3d\x30\x78\x30\x30\x30\x30\x30" "\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x35\x2c\x6d\x69\x6e\x5f\x62\x61" "\x74\x63\x68\x5f\x74\x69\x6d\x65\x3d\x30\x78\x30\x30\x30\x30\x30\x30\x30" "\x30\x30\x30\x30\x30\x30\x30\x30\x35\x2c\x67\x72\x70\x71\x75\x6f\x74\x61" "\x2c\x65\x72\x72\x6f\x72\x73\x3d\x63\x6f\x6e\x74\x69\x6e\x75\x65\x2c\x6e" "\x6f\x6d\x62\x63\x61\x63\x68\x65\x2c\x00\xf6\xff\x22\xa7\x4e\xcf\xf2\xad" "\xda\xe3\x33\xc7\x42\x7f\x52\x21\x73\x89\xe7\x06\x82\x0b\x82\x78\xe0\x7d" "\xfe\xe9\x25\x59\xe5\xf7\x8d\xe3\x2f\x51\xae\x7e\x93\x21\x66\xa7\x09\x00" "\x9a\x8e\x09\x04\x2c\x5d\xae\x6f\xa7\x58\xc0\xdc\xb5\x02\x44\xec\xaa\x88" "\x93\x7a\xd6\x56\x27\x85\xb3\x76\x44\x68\xd1\x4d\x45\xb7\x8e\xa6\xce\x85" "\xfe\x40\xf9\xf8\x6e\x58\x29\xd6\x45\x5e\x85\xcb\xdb\x3f\x09\x84\x78\x02" "\xe3\xe9\x49\xdb\x9c\xc9\x24\xd9\xc7\x68\xcd\xcd\x94\x1b\x5c\x1b\xdb\x93" "\x65\x70\xd8\xc1\xbe\xb3\x41\x0d\xa1\x2a\x8f\x0e\xd9\x3d\x91\x4a\x93\x7f" "\x2b\xf9\x33\x93\xd3\x72\xb7\x24\x41\x71\x6a\xe2\x8b\xc9\x56\x8e\x05\x78" "\x8b\x39\x9c\xd1\xd4\x5f\xcb\x38\x77\x8a\x73\x0d\x06\xb5\xcf\x7e\xdd\x3d" "\xf2\x64\x89\xb5\xbf\xe3\x47\xad\x07\x3d\x1a\x8e\xfc\x7f\x32\xc0\x1b\xab" "\xaf\xea\x26\x80\xfe\x80\x65\x25\x89\x5e\x1c\x9a\x25\xfc\xe1\xc3\x00\x00" "\x00\x76\x5e\xb2\xda\x49\x53\x56\xaf\xa4\x03\xb7", 336); memcpy( (void*)0x20000540, "\x78\x9c\xec\xdd\x3d\x68\x2c\x55\x18\x06\xe0\x77\x66\x77\xbd\xe6\xde\x45" "\xae\xda\x08\xe2\x0f\x88\x88\x06\xc2\xb5\x13\x6c\x62\xa3\x10\x90\x10\x44" "\x04\x15\x22\x22\x36\x4a\x22\xc4\x04\xbb\xc4\xca\xc6\x42\x6b\x95\x54\x36" "\x41\xec\x8c\x96\x92\x26\xd8\x28\x82\x55\xd4\x14\xb1\x11\x34\x58\x18\x2c" "\xb4\x58\x99\x9d\x44\x62\xb2\xe2\xcf\xc6\x1d\x71\x9e\x07\x66\x67\x66\xf7" "\x9c\xf9\xce\x30\xf3\x9e\xdd\x66\xd8\x00\xad\x75\x35\xc9\x6c\x92\x4e\x92" "\xe9\x24\xbd\x24\xc5\xe9\x06\x77\xd6\xcb\xd5\xe3\xdd\xcd\xa9\xdd\xc5\x64" "\x30\x78\xec\x87\x62\xd8\xae\xde\xaf\x9d\xf4\xbb\x92\x64\x23\xc9\x03\x49" "\x76\xca\x22\x2f\x74\x93\xb5\xed\xa7\x0e\x7e\xda\x7b\xe4\x9e\xd7\x57\x7b" "\x77\xbf\xbb\xfd\xe4\xd4\x44\x4f\xf2\xd8\xe1\xc1\xfe\xa3\x47\xef\xcc\xbf" "\xf6\xc1\xdc\xfd\x6b\x9f\x7d\xf1\xdd\x7c\x91\xd9\xf4\x7f\x77\x5e\x17\xaf" "\x18\xf1\x5e\xb7\x48\x6e\xfa\x37\x8a\xfd\x47\x14\xdd\xa6\x47\xc0\x5f\xb1" "\xf0\xca\xfb\x5f\x56\xb9\xbf\x39\xc9\x5d\xc3\xfc\xf7\x52\xa6\xbe\x78\x6f" "\xac\x5c\xb7\xd3\xcb\x7d\x6f\xff\x51\xdf\x37\xbf\xff\xfc\xd6\x49\x8e\x15" "\xb8\x78\x83\x41\xaf\xfa\x0e\xdc\x18\x00\xad\x53\x26\xe9\xa7\x28\x67\x92" "\xd4\xdb\x65\x39\x33\x53\xff\x86\xff\xaa\x73\xb9\x7c\x71\x79\xe5\xe5\xe9" "\xe7\x97\x57\x97\x9e\x6b\x7a\xa6\x02\x2e\x4a\x3f\xd9\x7f\xf8\xa3\x4b\x1f" "\x5e\x39\x93\xff\x6f\x3b\x75\xfe\x81\xff\xaf\x2a\xff\x8f\x2f\x6c\x7d\x5d" "\x6d\x1f\x75\x9a\x1e\x0d\x30\x11\xb7\xd5\xab\x2a\xff\xd3\xcf\xac\xdf\x1b" "\xf9\x87\xd6\x91\x7f\x68\x2f\xf9\x87\xf6\x92\x7f\x68\x2f\xf9\x87\xf6\x92" "\x7f\x68\x2f\xf9\x87\xf6\x92\x7f\x68\x2f\xf9\x87\xf6\x92\x7f\x68\xaf\xd3" "\xf9\x07\x00\xda\x65\x70\xa9\xe9\x27\x90\x81\xa6\x34\x3d\xff\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xe7\x6d\x4e\xed\x2e\x9e" "\x2c\x93\xaa\xf9\xc9\x5b\xc9\xe1\x43\x49\xba\xa3\xea\x77\x86\xff\x47\x9c" "\x5c\x3f\x7c\xbd\xfc\x63\x51\x35\xfb\x4d\x51\x77\x1b\xcb\xd3\x77\x8c\x79" "\x80\x31\xbd\xd7\xf0\xd3\xd7\x37\x7c\xd3\x6c\xfd\x4f\x6f\x6f\xb6\xfe\xfa" "\x52\xb2\xf1\x6a\x92\x6b\xdd\xee\xf9\xfb\xaf\x38\xbe\xff\xfe\xb9\x1b\xff" "\xe4\xf3\xde\xb3\x63\x16\xf8\x9b\x8a\x33\xfb\x0f\x3e\x31\xd9\xfa\x67\xfd" "\xb2\xd5\x6c\xfd\xb9\xbd\xe4\xe3\x6a\xfe\xb9\x36\x6a\xfe\x29\x73\xcb\x70" "\x3d\x7a\xfe\xe9\x57\xd7\x6f\xcc\xfa\x2f\xfd\x3c\xe6\x01\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x98\x98\x5f\x03\x00\x00\xff\xff\x11\x50\x6d\x47", 575); syz_mount_image(0x20000240, 0x20000280, 0x10, 0x200002c0, -1, 0x23f, 0x20000540); memcpy((void*)0x20000080, "./file1\000", 8); syscall(__NR_mkdirat, 0xffffff9c, 0x20000080ul, 0ul); memcpy((void*)0x20000100, "./file1/file3\000", 14); syscall(__NR_mkdirat, 0xffffff9c, 0x20000100ul, 0ul); *(uint64_t*)0x20000140 = 0x2000; res = syscall(__NR_landlock_create_ruleset, 0x20000140ul, 8ul, 0ul); if (res != -1) r[0] = res; memcpy((void*)0x200001c0, "./file1/file3\000", 14); res = syscall(__NR_openat, 0xffffffffffffff9cul, 0x200001c0ul, 0ul, 0ul); if (res != -1) r[1] = res; *(uint64_t*)0x20000340 = 0x2000; *(uint32_t*)0x20000348 = r[1]; syscall(__NR_landlock_add_rule, r[0], 1ul, 0x20000340ul, 0ul); syscall(__NR_landlock_restrict_self, r[0], 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; }