// https://syzkaller.appspot.com/bug?id=8593724cce469c9898b7fbc49f48f4943fee940f // autogenerated by syzkaller (https://github.com/google/syzkaller) #define _GNU_SOURCE #include #include #include #include #include #include #include #include #ifndef __NR_bpf #define __NR_bpf 321 #endif #define BITMASK(bf_off, bf_len) (((1ull << (bf_len)) - 1) << (bf_off)) #define STORE_BY_BITMASK(type, htobe, addr, val, bf_off, bf_len) \ *(type*)(addr) = \ htobe((htobe(*(type*)(addr)) & ~BITMASK((bf_off), (bf_len))) | \ (((type)(val) << (bf_off)) & BITMASK((bf_off), (bf_len)))) uint64_t r[1] = {0xffffffffffffffff}; int main(void) { syscall(__NR_mmap, /*addr=*/0x1ffffffff000ul, /*len=*/0x1000ul, /*prot=*/0ul, /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/(intptr_t)-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=*/(intptr_t)-1, /*offset=*/0ul); syscall(__NR_mmap, /*addr=*/0x200001000000ul, /*len=*/0x1000ul, /*prot=*/0ul, /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/(intptr_t)-1, /*offset=*/0ul); const char* reason; (void)reason; intptr_t res = 0; if (write(1, "executing program\n", sizeof("executing program\n") - 1)) { } *(uint32_t*)0x2000000000c0 = 3; *(uint32_t*)0x2000000000c4 = 4; *(uint64_t*)0x2000000000c8 = 0x200000000700; *(uint8_t*)0x200000000700 = 0x18; STORE_BY_BITMASK(uint8_t, , 0x200000000701, 0, 0, 4); STORE_BY_BITMASK(uint8_t, , 0x200000000701, 0, 4, 4); *(uint16_t*)0x200000000702 = 0; *(uint32_t*)0x200000000704 = 0; *(uint8_t*)0x200000000708 = 0; *(uint8_t*)0x200000000709 = 0; *(uint16_t*)0x20000000070a = 0; *(uint32_t*)0x20000000070c = 0; *(uint8_t*)0x200000000710 = 0x85; *(uint8_t*)0x200000000711 = 0; *(uint16_t*)0x200000000712 = 0; *(uint32_t*)0x200000000714 = 0x4f; *(uint8_t*)0x200000000718 = 0x95; *(uint8_t*)0x200000000719 = 0; *(uint16_t*)0x20000000071a = 0; *(uint32_t*)0x20000000071c = 0; *(uint64_t*)0x2000000000d0 = 0x200000000200; memcpy((void*)0x200000000200, "GPL\000", 4); *(uint32_t*)0x2000000000d8 = 0; *(uint32_t*)0x2000000000dc = 0; *(uint64_t*)0x2000000000e0 = 0; *(uint32_t*)0x2000000000e8 = 0; *(uint32_t*)0x2000000000ec = 0; memset((void*)0x2000000000f0, 0, 16); *(uint32_t*)0x200000000100 = 0; *(uint32_t*)0x200000000104 = 0; *(uint32_t*)0x200000000108 = 0; *(uint32_t*)0x20000000010c = 0; *(uint64_t*)0x200000000110 = 0; *(uint32_t*)0x200000000118 = 0; *(uint32_t*)0x20000000011c = 0; *(uint64_t*)0x200000000120 = 0; *(uint32_t*)0x200000000128 = 0; *(uint32_t*)0x20000000012c = 0; *(uint32_t*)0x200000000130 = 0; *(uint32_t*)0x200000000134 = 0; *(uint64_t*)0x200000000138 = 0; *(uint64_t*)0x200000000140 = 0; *(uint32_t*)0x200000000148 = 0; *(uint32_t*)0x20000000014c = 0; *(uint32_t*)0x200000000150 = 0; res = syscall(__NR_bpf, /*cmd=*/5ul, /*arg=*/0x2000000000c0ul, /*size=*/0x94ul); if (res != -1) r[0] = res; *(uint32_t*)0x200000000400 = r[0]; *(uint32_t*)0x200000000404 = 0x2a0; *(uint32_t*)0x200000000408 = 0xe; *(uint32_t*)0x20000000040c = 0; *(uint64_t*)0x200000000410 = 0x2000000002c0; memcpy((void*)0x2000000002c0, "\xd2\xff\x03\x07\x60\x03\x00\x8c\xb8\x9e\x08\xf0\x88\xa8", 14); *(uint64_t*)0x200000000418 = 0; *(uint32_t*)0x200000000420 = 0xd5b1; *(uint32_t*)0x200000000424 = 0x60000000; *(uint32_t*)0x200000000428 = 0; *(uint32_t*)0x20000000042c = 0; *(uint64_t*)0x200000000430 = 0; *(uint64_t*)0x200000000438 = 0; *(uint32_t*)0x200000000440 = 0; *(uint32_t*)0x200000000444 = 0; *(uint32_t*)0x200000000448 = 0; syscall(__NR_bpf, /*cmd=*/0xaul, /*arg=*/0x200000000400ul, /*size=*/0x50ul); return 0; }