// https://syzkaller.appspot.com/bug?id=8044da1bfbc0e081a6fffab422931f0cea31d3a6 // 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 #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 int inject_fault(int nth) { int fd; fd = open("/proc/thread-self/fail-nth", O_RDWR); if (fd == -1) exit(1); char buf[16]; sprintf(buf, "%d", nth); if (write(fd, buf, strlen(buf)) != (ssize_t)strlen(buf)) exit(1); return fd; } static const char* setup_fault() { int fd = open("/proc/self/make-it-fail", O_WRONLY); if (fd == -1) return "CONFIG_FAULT_INJECTION is not enabled"; close(fd); fd = open("/proc/thread-self/fail-nth", O_WRONLY); if (fd == -1) return "kernel does not have systematic fault injection support"; close(fd); static struct { const char* file; const char* val; bool fatal; } files[] = { {"/sys/kernel/debug/failslab/ignore-gfp-wait", "N", true}, {"/sys/kernel/debug/fail_futex/ignore-private", "N", false}, {"/sys/kernel/debug/fail_page_alloc/ignore-gfp-highmem", "N", false}, {"/sys/kernel/debug/fail_page_alloc/ignore-gfp-wait", "N", false}, {"/sys/kernel/debug/fail_page_alloc/min-order", "0", false}, }; unsigned i; for (i = 0; i < sizeof(files) / sizeof(files[0]); i++) { if (!write_file(files[i].file, files[i].val)) { if (files[i].fatal) return "failed to write fault injection file"; } } return NULL; } uint64_t r[2] = {0xffffffffffffffff, 0xffffffffffffffff}; 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; if ((reason = setup_fault())) printf("the reproducer may not work as expected: fault injection setup " "failed: %s\n", reason); intptr_t res = 0; if (write(1, "executing program\n", sizeof("executing program\n") - 1)) { } memcpy((void*)0x20000180, "hfs\000", 4); memcpy((void*)0x20000100, "./file0\000", 8); memcpy( (void*)0x200003c0, "\x71\x75\x69\x65\x74\x2c\x63\x6f\x64\x65\x70\x61\x67\x65\x3d\x63\x70\x38" "\x36\x30\x2c\x69\x6f\x63\x68\x61\x72\x73\x65\x74\x3d\x63\x70\x38\x36\x31" "\x2c\x00\x80\x8f\xea\xd0\x42\xbd\x35\xdc\x78\xf7\xf0\x63\x33\xa5\xe7\x16" "\x5b\x82\x71\xe4\x1a\xee\x85\xe5\x9c\xbb\x6c\x2d\xf3\xd4\xe5\xc1\x6b\x06" "\xc7\x3f\x2e\x3b\x34\x8a\x7f\xba\x46\xe2\x86\x37\x8a\x15\xee\x51\x6b\xac" "\x8d\x48\x13\xc9\xc3\xd9\xce\xe1\xdd\xb9\x5d\x1b\xbc\xf5\x04\xe0\x65\xb3" "\x74\x9a\x1c\xbd\x84\x1e\x68\x5a\x55\x85\x98\xcf\x0d\xb1\x0b\x55\x88\x59" "\x46\xe6\x78\xd0\xa7\x18\x77\x03\x7a\x09\x00\x00\x00\x07\x00\x84\x88\x79" "\xef\x16\x04\xca\xdc\x1f\xac\xa3\xaa\x22\xa5\x76\x75\x0d\x55\x9c\x4e\x12" "\x4d\x4c\xb7\x29\x3e\x73\x93\xb7\x72\x86\xfa\x8c\x6d\xc4\x49\xed\xa0\xa0" "\x3d\x34\x23\x82\xe8\x4d\x6d\x3c\x29\xab\x95\xcc\x92\x3f\xbe\x25\xe1\x34" "\xd1\xc4\x21\x32\x0a\x3b\xff\xaa\x17\xfc\xd6\xb5\x17\x8e\x32\x2c\xc4\x71" "\x33\xb3\x81\x1e\x3d\x3b\xc3\x49\x98\xdc\x7e\xd0\x29\x83\x4a\xd5\x91\xd9" "\xd5\x6c\x41\x06\x3d\x8d\xe2\xd5\x0a\x23\x98\xe7\x3f\xf2\x91\x3a\x9f\xe8" "\xe9\x54\xa4\xe4\xca\x99\xce\xb5\x73\x7e\x57\x19\x3c\x5f\x47\xfd\x63\xb1" "\x6c\x8b\x34\xf2\x56\xdb\xac\x0e\x5e\xbd\x00\x90\x78\xdf\x2c\xb1\xca\x10" "\x51\xad\x09\x1a\xdb\xfe\xe5\x12\x6d\x8a\x59\xfa\x54\x38\x73\x4b\xc3\xe8" "\xcc\x7b\x7e\xdc\x10\x71\x6a\x0a\x9b\x71\x19\x52\xcd\xf9\x65\x86\xe0\x6f" "\xba\xce\x21\xdc\x04\xbd\xb4\xa1\xa2\x07\x2c\xe5\xf7\x2c\xf0", 339); *(uint64_t*)0x20000513 = -1; sprintf((char*)0x2000051b, "%020llu", (long long)-1); *(uint64_t*)0x2000052f = -1; *(uint8_t*)0x20000537 = -1; memcpy( (void*)0x20000540, "\x78\x9c\xec\xdd\xcb\x6e\xd3\x4a\x1c\xc7\xf1\xdf\x38\x69\x93\x73\x1a\xf5" "\xb8\x97\xa3\x23\x9d\x65\xa1\x12\x6c\x10\x94\x0d\x62\x13\x84\xf2\x10\x88" "\x05\xa2\x97\x20\x55\x8d\x8a\x80\x22\x01\x1b\x52\xc4\x0a\x21\xd8\xb3\xe7" "\x15\x78\x08\x36\x20\x5e\x00\x56\x2c\x10\x0f\xd0\xae\x8c\x66\x7c\x49\x9c" "\x38\x76\xa8\x9a\xb8\x11\xdf\x8f\x04\x75\xec\x19\xcf\x7f\x7c\xfd\x4f\xa4" "\x76\x04\xe0\x8f\x75\xb3\xf5\xf5\xfd\xd5\xef\xf6\x9f\x91\x2a\xaa\x48\xaf" "\xae\x4b\x9e\xa4\xba\x54\x95\xf4\xaf\xfe\xab\x3f\xde\x3f\xd8\x3d\xe8\xb4" "\x77\xf2\x76\x54\x71\x35\x74\x1c\xc8\x28\xac\x69\x86\xca\x6c\xef\xb7\xdd" "\xcf\xc3\xf4\x6a\x5b\xcf\xd5\x88\xf8\xf6\x53\x55\x8d\xfe\x75\x98\x8c\x20" "\x08\x6e\x7c\x1b\x58\xf7\xc3\x2b\x29\x18\x94\xc6\xdd\xfd\x19\x3c\xa9\x16" "\xdd\x9d\x6e\x7b\x7d\xea\x91\xe5\x3b\x3c\x61\xbd\xee\x29\xc7\x31\x6b\xcc" "\x91\x8e\xf4\x44\x8b\x65\xc7\x01\x00\x28\x97\x7d\xff\x1f\x86\x89\xbf\x7d" "\xcf\x37\xa2\xfc\xdd\xf3\xa4\xf5\xe8\xb5\x7f\x26\xdf\xff\x27\x75\x54\x76" "\x00\x13\x17\xe4\x6e\xed\x7b\xff\xbb\x51\x56\x60\xec\xf9\xfd\xc7\x6d\xea" "\x8d\xf7\xdc\x10\xce\x6e\xf7\xe2\x51\xe2\x38\x2d\xcf\x0d\x7c\x9e\x57\x98" "\x48\xa6\x12\x4c\x53\x34\xaa\x74\xb1\x78\x7f\xdd\xdb\xed\xb4\x2f\x6d\xdf" "\xef\xec\x78\x7a\xa1\x66\xa4\xaf\xd8\x6a\xd2\x42\xc4\x5e\xa1\x05\xd1\xae" "\x65\x8c\x4d\x73\x8c\xd1\x77\x93\x99\x51\x86\x61\x79\x73\xb6\x0f\x1b\x23" "\xe2\x5f\x39\x61\x8b\xbf\x23\x75\x42\xcc\x47\xf3\xd9\xdc\x31\xbe\xde\x69" "\x27\xc9\xff\xaa\x81\xb1\xd1\xba\x80\xfd\x81\x33\x15\xc6\x7f\x79\xf4\xee" "\x17\x5c\x2d\x5b\x4a\xd1\x63\xa3\xd9\x6c\x7a\x6e\x47\xb1\x25\xd7\xc8\xff" "\xe9\x33\x55\xd0\xcb\x7a\xf6\x88\x44\xf1\x81\x5d\x52\xfa\x0b\x02\xbf\x28" "\x4e\x57\x6b\x79\xa0\x56\xd8\xbb\x2b\x99\x15\x6a\x49\xad\x95\xcc\x5a\x1b" "\xf1\xa7\x11\x6d\xad\xa6\x6a\xd9\xde\x24\x57\xf3\xe8\x28\x27\xcd\xbc\x31" "\xb7\xcc\x9a\x7e\xea\x83\x5a\x7d\xf9\xbf\x67\xe3\x5b\x57\xee\x9d\xd9\xbb" "\x6b\xcc\x7a\x78\xa3\xb9\x23\x1e\xf6\x67\x3e\xbb\xb9\xaa\xdb\xa7\x3f\xf4" "\xe6\xe8\xea\x76\x23\xbd\x26\x39\x8a\xb5\x51\xa1\x1f\xe7\x3f\xd3\x30\x86" "\xf8\x1c\xbe\xd6\x96\xae\x69\xf1\xd1\xd3\x67\x7b\x95\x4e\xa7\xfd\xd0\x2e" "\x6c\x66\x2c\x3c\x68\x24\x6b\xe6\x5e\x4a\x99\x65\x4a\x5e\x50\xb7\xb7\xa6" "\xa6\xc0\x19\x2a\x1c\x3f\x03\xa7\x19\xd8\xc5\x53\xdd\xa1\x7d\x7e\x14\x16" "\xb6\x77\xd9\x54\x3a\x78\x26\xaf\x84\x69\x2d\xb4\x3e\x4d\xea\x42\x0a\x6a" "\x67\xa2\x83\x7b\x9b\x9d\x12\x9f\x51\x98\x9a\xde\x49\x2f\x3b\x12\x94\xc4" "\xe6\x5d\x26\x1c\xff\xb9\x4c\x3e\xca\xf7\x5d\xa2\x60\xff\xf3\x73\xf2\xf4" "\xc2\x84\x2c\xda\x63\x60\x73\xec\x64\x04\x54\x4f\xd5\x5f\x76\x4b\x7f\xa7" "\xd3\xe8\x82\xb1\xc1\xc2\xe8\x11\x5c\x5f\x1f\x72\xc7\x5c\xe7\x2e\x48\xe7" "\xc7\x6f\xd1\x8f\xe2\x9c\x0d\xc1\xf3\x82\x02\xa6\xa5\x2f\xba\xcb\xf7\xff" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xb3\x66\x1a" "\xbf\x4e\x50\x76\x1f\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x98\x75\xc9\xfc\xbf\x8a\xe7\xff\xd5\x78\xf3\xff\x0e\xfe" "\xe5\xef\x68\xfe\xdf\xba\x0a\xe6\xff\xdd\x1a\x8e\x61\x68\xfe\xdf\xb7\xfb" "\x32\x5d\x89\xf9\x7f\x81\xc9\xfa\x15\x00\x00\xff\xff\x3d\xca\x84\xe0", 737); syz_mount_image(/*fs=*/0x20000180, /*dir=*/0x20000100, /*flags=MS_LAZYTIME|MS_STRICTATIME*/ 0x3000000, /*opts=*/0x200003c0, /*chdir=*/0x11, /*size=*/0x2e1, /*img=*/0x20000540); memcpy((void*)0x20000040, "./file1\000", 8); res = syscall(__NR_openat, /*fd=*/0xffffff9c, /*file=*/0x20000040ul, /*flags=O_CREAT|O_RDWR*/ 0x42, /*mode=*/0); if (res != -1) r[0] = res; memcpy((void*)0x20000540, "\x95\x38\x20\xa6\x1a\x16\x6f\xd5\xdd\x4b\x4b", 11); syscall(__NR_write, /*fd=*/r[0], /*buf=*/0x20000540ul, /*count=*/0xfdeful); syscall(__NR_socketpair, /*domain=*/1ul, /*type=SOCK_DGRAM*/ 2ul, /*proto=*/0, /*fds=*/0ul); syscall(__NR_sendmmsg, /*fd=*/-1, /*mmsg=*/0ul, /*vlen=*/0ul, /*f=*/0ul); syscall(__NR_recvmmsg, /*fd=*/-1, /*mmsg=*/0ul, /*vlen=*/0ul, /*f=MSG_PEEK*/ 2ul, /*timeout=*/0ul); memcpy((void*)0x20000040, "cpuacct.usage_sys\000", 18); res = syscall(__NR_openat, /*fd=*/0xffffff9c, /*file=*/0x20000040ul, /*flags=*/0x275a, /*mode=*/0); if (res != -1) r[1] = res; memcpy((void*)0x20000300, "#! ", 3); *(uint8_t*)0x20000303 = 0xa; inject_fault(4); syscall(__NR_write, /*fd=*/r[1], /*data=*/0x20000300ul, /*len=*/0x1000aul); return 0; }