| // WARNING in iov_iter_revert |
| // https://syzkaller.appspot.com/bug?id=1339e0a805a4ddb11eaee6fb6b1bc905493ded77 |
| // status:fixed |
| // autogenerated by syzkaller (http://github.com/google/syzkaller) |
| |
| #define _GNU_SOURCE |
| #include <endian.h> |
| #include <stdint.h> |
| #include <string.h> |
| #include <sys/syscall.h> |
| #include <unistd.h> |
| |
| #define BITMASK_LEN(type, bf_len) (type)((1ull << (bf_len)) - 1) |
| |
| #define BITMASK_LEN_OFF(type, bf_off, bf_len) \ |
| (type)(BITMASK_LEN(type, (bf_len)) << (bf_off)) |
| |
| #define STORE_BY_BITMASK(type, addr, val, bf_off, bf_len) \ |
| if ((bf_off) == 0 && (bf_len) == 0) { \ |
| *(type*)(addr) = (type)(val); \ |
| } else { \ |
| type new_val = *(type*)(addr); \ |
| new_val &= ~BITMASK_LEN_OFF(type, (bf_off), (bf_len)); \ |
| new_val |= ((type)(val)&BITMASK_LEN(type, (bf_len))) << (bf_off); \ |
| *(type*)(addr) = new_val; \ |
| } |
| |
| struct csum_inet { |
| uint32_t acc; |
| }; |
| |
| static void csum_inet_init(struct csum_inet* csum) |
| { |
| csum->acc = 0; |
| } |
| |
| static void csum_inet_update(struct csum_inet* csum, const uint8_t* data, |
| size_t length) |
| { |
| if (length == 0) |
| return; |
| |
| size_t i; |
| for (i = 0; i < length - 1; i += 2) |
| csum->acc += *(uint16_t*)&data[i]; |
| |
| if (length & 1) |
| csum->acc += (uint16_t)data[length - 1]; |
| |
| while (csum->acc > 0xffff) |
| csum->acc = (csum->acc & 0xffff) + (csum->acc >> 16); |
| } |
| |
| static uint16_t csum_inet_digest(struct csum_inet* csum) |
| { |
| return ~csum->acc; |
| } |
| |
| uint64_t r[1] = {0xffffffffffffffff}; |
| void loop() |
| { |
| long res = 0; |
| res = syscall(__NR_socket, 0xa, 1, 0); |
| if (res != -1) |
| r[0] = res; |
| syscall(__NR_shutdown, r[0], 1); |
| *(uint32_t*)0x200000c0 = 1; |
| syscall(__NR_setsockopt, r[0], 6, 0x13, 0x200000c0, 0x1d4); |
| *(uint16_t*)0x20000080 = 0xa; |
| *(uint16_t*)0x20000082 = htobe16(0); |
| *(uint32_t*)0x20000084 = 0; |
| *(uint8_t*)0x20000088 = 0; |
| *(uint8_t*)0x20000089 = 0; |
| *(uint8_t*)0x2000008a = 0; |
| *(uint8_t*)0x2000008b = 0; |
| *(uint8_t*)0x2000008c = 0; |
| *(uint8_t*)0x2000008d = 0; |
| *(uint8_t*)0x2000008e = 0; |
| *(uint8_t*)0x2000008f = 0; |
| *(uint8_t*)0x20000090 = 0; |
| *(uint8_t*)0x20000091 = 0; |
| *(uint8_t*)0x20000092 = 0; |
| *(uint8_t*)0x20000093 = 0; |
| *(uint8_t*)0x20000094 = 0; |
| *(uint8_t*)0x20000095 = 0; |
| *(uint8_t*)0x20000096 = 0; |
| *(uint8_t*)0x20000097 = 0; |
| *(uint32_t*)0x20000098 = 0; |
| syscall(__NR_connect, r[0], 0x20000080, 0x1c); |
| memcpy((void*)0x20000040, "tls", 4); |
| syscall(__NR_setsockopt, r[0], 6, 0x1f, 0x20000040, 0x13a); |
| *(uint16_t*)0x20000100 = 0x303; |
| *(uint16_t*)0x20000102 = 0x33; |
| syscall(__NR_setsockopt, r[0], 0x11a, 1, 0x20000100, 0x28); |
| memcpy((void*)0x20000140, "e", 1); |
| *(uint16_t*)0x20000180 = 0xa; |
| *(uint16_t*)0x20000182 = htobe16(0); |
| *(uint32_t*)0x20000184 = 0; |
| *(uint8_t*)0x20000188 = -1; |
| *(uint8_t*)0x20000189 = 1; |
| *(uint8_t*)0x2000018a = 0; |
| *(uint8_t*)0x2000018b = 0; |
| *(uint8_t*)0x2000018c = 0; |
| *(uint8_t*)0x2000018d = 0; |
| *(uint8_t*)0x2000018e = 0; |
| *(uint8_t*)0x2000018f = 0; |
| *(uint8_t*)0x20000190 = 0; |
| *(uint8_t*)0x20000191 = 0; |
| *(uint8_t*)0x20000192 = 0; |
| *(uint8_t*)0x20000193 = 0; |
| *(uint8_t*)0x20000194 = 0; |
| *(uint8_t*)0x20000195 = 0; |
| *(uint8_t*)0x20000196 = 0; |
| *(uint8_t*)0x20000197 = 1; |
| *(uint32_t*)0x20000198 = 0; |
| syscall(__NR_sendto, r[0], 0x20000140, 1, 0x8000, 0x20000180, 0x1c); |
| *(uint64_t*)0x20001340 = 0x20000200; |
| *(uint16_t*)0x20000200 = 0x1d; |
| *(uint32_t*)0x20000204 = 0; |
| *(uint32_t*)0x20000208 = 0; |
| *(uint32_t*)0x2000020c = 0; |
| *(uint32_t*)0x20001348 = 0x80; |
| *(uint64_t*)0x20001350 = 0x200002c0; |
| *(uint64_t*)0x200002c0 = 0x20000280; |
| memcpy((void*)0x20000280, |
| "\xd1\xac\x95\x44\x47\x07\xda\x12\x0d\x27\xba\x70\xc0\x45\x23\xad\xa1", |
| 17); |
| *(uint64_t*)0x200002c8 = 0x11; |
| *(uint64_t*)0x20001358 = 1; |
| *(uint64_t*)0x20001360 = 0x200001c0; |
| *(uint64_t*)0x20001368 = 0; |
| *(uint32_t*)0x20001370 = 0; |
| syscall(__NR_sendmsg, r[0], 0x20001340, 0); |
| *(uint8_t*)0x200000c0 = 0xaa; |
| *(uint8_t*)0x200000c1 = 0xaa; |
| *(uint8_t*)0x200000c2 = 0xaa; |
| *(uint8_t*)0x200000c3 = 0xaa; |
| *(uint8_t*)0x200000c4 = 0xaa; |
| *(uint8_t*)0x200000c5 = 0xbb; |
| *(uint8_t*)0x200000c6 = 0xaa; |
| *(uint8_t*)0x200000c7 = 0xaa; |
| *(uint8_t*)0x200000c8 = 0xaa; |
| *(uint8_t*)0x200000c9 = 0xaa; |
| *(uint8_t*)0x200000ca = 0xaa; |
| *(uint8_t*)0x200000cb = 0xbb; |
| *(uint16_t*)0x200000cc = htobe16(0x8100); |
| STORE_BY_BITMASK(uint16_t, 0x200000ce, 0xfa0b, 0, 3); |
| STORE_BY_BITMASK(uint16_t, 0x200000ce, 4, 3, 1); |
| STORE_BY_BITMASK(uint16_t, 0x200000ce, 0, 4, 12); |
| *(uint16_t*)0x200000d0 = htobe16(0x800); |
| STORE_BY_BITMASK(uint8_t, 0x200000d2, 0x12, 0, 4); |
| STORE_BY_BITMASK(uint8_t, 0x200000d2, 4, 4, 4); |
| STORE_BY_BITMASK(uint8_t, 0x200000d3, 2, 0, 2); |
| STORE_BY_BITMASK(uint8_t, 0x200000d3, 0x99, 2, 6); |
| *(uint16_t*)0x200000d4 = htobe16(0x90); |
| *(uint16_t*)0x200000d6 = htobe16(0x68); |
| *(uint16_t*)0x200000d8 = htobe16(0); |
| *(uint8_t*)0x200000da = 0; |
| *(uint8_t*)0x200000db = 0x11; |
| *(uint16_t*)0x200000dc = 0; |
| *(uint8_t*)0x200000de = 0xac; |
| *(uint8_t*)0x200000df = 0x14; |
| *(uint8_t*)0x200000e0 = 0x14; |
| *(uint8_t*)0x200000e1 = 0xbb; |
| *(uint32_t*)0x200000e2 = htobe32(0xe0000001); |
| *(uint8_t*)0x200000e6 = 0x83; |
| *(uint8_t*)0x200000e7 = 0x13; |
| *(uint8_t*)0x200000e8 = 5; |
| *(uint32_t*)0x200000e9 = htobe32(0xe0000001); |
| *(uint8_t*)0x200000ed = 0xac; |
| *(uint8_t*)0x200000ee = 0x14; |
| *(uint8_t*)0x200000ef = 0x14; |
| *(uint8_t*)0x200000f0 = 0x10; |
| *(uint8_t*)0x200000f1 = 0xac; |
| *(uint8_t*)0x200000f2 = 0x14; |
| *(uint8_t*)0x200000f3 = 0x14; |
| *(uint8_t*)0x200000f4 = 0xbb; |
| *(uint8_t*)0x200000f5 = 0xac; |
| *(uint8_t*)0x200000f6 = 0x14; |
| *(uint8_t*)0x200000f7 = 0x14; |
| *(uint8_t*)0x200000f8 = 0xaa; |
| *(uint8_t*)0x200000f9 = 0; |
| *(uint8_t*)0x200000fa = 0x83; |
| *(uint8_t*)0x200000fb = 0x1f; |
| *(uint8_t*)0x200000fc = 0; |
| *(uint32_t*)0x200000fd = htobe32(-1); |
| *(uint8_t*)0x20000101 = 0xac; |
| *(uint8_t*)0x20000102 = 0x14; |
| *(uint8_t*)0x20000103 = 0x14; |
| *(uint8_t*)0x20000104 = 0xaa; |
| *(uint32_t*)0x20000105 = htobe32(0xe0000001); |
| *(uint32_t*)0x20000109 = htobe32(0); |
| *(uint32_t*)0x2000010d = htobe32(0x7f000001); |
| *(uint32_t*)0x20000111 = htobe32(-1); |
| *(uint32_t*)0x20000115 = htobe32(0); |
| STORE_BY_BITMASK(uint16_t, 0x2000011a, 0, 0, 1); |
| STORE_BY_BITMASK(uint16_t, 0x2000011a, 0, 1, 1); |
| STORE_BY_BITMASK(uint16_t, 0x2000011a, 1, 2, 1); |
| STORE_BY_BITMASK(uint16_t, 0x2000011a, 2, 3, 1); |
| STORE_BY_BITMASK(uint16_t, 0x2000011a, 0, 4, 4); |
| STORE_BY_BITMASK(uint16_t, 0x2000011a, 3, 8, 1); |
| STORE_BY_BITMASK(uint16_t, 0x2000011a, 0, 9, 4); |
| STORE_BY_BITMASK(uint16_t, 0x2000011a, 1, 13, 3); |
| *(uint16_t*)0x2000011c = htobe16(0x880b); |
| *(uint16_t*)0x2000011e = htobe16(0); |
| *(uint16_t*)0x20000120 = htobe16(1); |
| STORE_BY_BITMASK(uint16_t, 0x20000122, -1, 0, 1); |
| STORE_BY_BITMASK(uint16_t, 0x20000122, 0, 1, 1); |
| STORE_BY_BITMASK(uint16_t, 0x20000122, 0xfffe, 2, 1); |
| STORE_BY_BITMASK(uint16_t, 0x20000122, 2, 3, 1); |
| STORE_BY_BITMASK(uint16_t, 0x20000122, 0, 4, 9); |
| STORE_BY_BITMASK(uint16_t, 0x20000122, 0, 13, 3); |
| *(uint16_t*)0x20000124 = htobe16(0x800); |
| *(uint16_t*)0x20000126 = htobe16(7); |
| STORE_BY_BITMASK(uint16_t, 0x20000128, 0x200, 0, 1); |
| STORE_BY_BITMASK(uint16_t, 0x20000128, 0, 1, 1); |
| STORE_BY_BITMASK(uint16_t, 0x20000128, 0x2e1c, 2, 1); |
| STORE_BY_BITMASK(uint16_t, 0x20000128, 0x20, 3, 1); |
| STORE_BY_BITMASK(uint16_t, 0x20000128, 0, 4, 9); |
| STORE_BY_BITMASK(uint16_t, 0x20000128, 0, 13, 3); |
| *(uint16_t*)0x2000012a = htobe16(0x86dd); |
| *(uint16_t*)0x2000012c = htobe16(0); |
| *(uint16_t*)0x2000012e = 8; |
| *(uint16_t*)0x20000130 = htobe16(0x88be); |
| *(uint32_t*)0x20000132 = htobe32(4); |
| STORE_BY_BITMASK(uint8_t, 0x20000136, 7, 0, 4); |
| STORE_BY_BITMASK(uint8_t, 0x20000136, 1, 4, 4); |
| *(uint8_t*)0x20000137 = 0xe; |
| STORE_BY_BITMASK(uint8_t, 0x20000138, 6, 0, 2); |
| STORE_BY_BITMASK(uint8_t, 0x20000138, 0xc0, 2, 1); |
| STORE_BY_BITMASK(uint8_t, 0x20000138, 0, 3, 2); |
| STORE_BY_BITMASK(uint8_t, 0x20000138, 0x25, 5, 3); |
| *(uint8_t*)0x20000139 = 9; |
| *(uint32_t*)0x2000013a = 1; |
| *(uint32_t*)0x2000013e = htobe32(0xde1); |
| *(uint16_t*)0x20000142 = 8; |
| *(uint16_t*)0x20000144 = htobe16(0x22eb); |
| *(uint32_t*)0x20000146 = htobe32(3); |
| STORE_BY_BITMASK(uint8_t, 0x2000014a, 5, 0, 4); |
| STORE_BY_BITMASK(uint8_t, 0x2000014a, 2, 4, 4); |
| *(uint8_t*)0x2000014b = 0x55; |
| STORE_BY_BITMASK(uint8_t, 0x2000014c, -1, 0, 2); |
| STORE_BY_BITMASK(uint8_t, 0x2000014c, 0xf8, 2, 1); |
| STORE_BY_BITMASK(uint8_t, 0x2000014c, 8, 3, 2); |
| STORE_BY_BITMASK(uint8_t, 0x2000014c, 0, 5, 3); |
| *(uint8_t*)0x2000014d = -1; |
| *(uint32_t*)0x2000014e = 2; |
| *(uint32_t*)0x20000152 = htobe32(0x48); |
| *(uint16_t*)0x20000156 = htobe16(0x73); |
| STORE_BY_BITMASK(uint8_t, 0x20000158, 8, 0, 2); |
| STORE_BY_BITMASK(uint8_t, 0x20000158, 9, 2, 5); |
| STORE_BY_BITMASK(uint8_t, 0x20000158, 3, 7, 1); |
| STORE_BY_BITMASK(uint8_t, 0x20000159, 0x40, 0, 1); |
| STORE_BY_BITMASK(uint8_t, 0x20000159, 0xba, 1, 2); |
| STORE_BY_BITMASK(uint8_t, 0x20000159, 0x7f, 3, 1); |
| STORE_BY_BITMASK(uint8_t, 0x20000159, 0x27, 4, 1); |
| *(uint16_t*)0x2000015a = 8; |
| *(uint16_t*)0x2000015c = htobe16(0x6558); |
| *(uint32_t*)0x2000015e = htobe32(0); |
| *(uint32_t*)0x20000000 = 0; |
| *(uint32_t*)0x20000004 = 4; |
| *(uint32_t*)0x20000008 = 0xbbf; |
| *(uint32_t*)0x2000000c = 0x1c0; |
| *(uint32_t*)0x20000010 = 0xc69; |
| *(uint32_t*)0x20000014 = 0x4ae; |
| struct csum_inet csum_1; |
| csum_inet_init(&csum_1); |
| csum_inet_update(&csum_1, (const uint8_t*)0x200000d2, 72); |
| *(uint16_t*)0x200000dc = csum_inet_digest(&csum_1); |
| } |
| |
| int main() |
| { |
| syscall(__NR_mmap, 0x20000000, 0x1000000, 3, 0x32, -1, 0); |
| loop(); |
| return 0; |
| } |
