// https://syzkaller.appspot.com/bug?id=583b200c0464331b3f9cf1d67566de0834f916d6 // 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=*/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); intptr_t res = 0; *(uint32_t*)0x20000000 = 5; *(uint32_t*)0x20000004 = 3; *(uint32_t*)0x20000008 = 0x3800; *(uint32_t*)0x2000000c = 0xff; *(uint32_t*)0x20000010 = 0x11; *(uint32_t*)0x20000014 = -1; *(uint32_t*)0x20000018 = 0; memset((void*)0x2000001c, 0, 16); *(uint32_t*)0x2000002c = 0; *(uint32_t*)0x20000030 = -1; *(uint32_t*)0x20000034 = 0; *(uint32_t*)0x20000038 = 0; *(uint32_t*)0x2000003c = 0; *(uint64_t*)0x20000040 = 0; res = syscall(__NR_bpf, /*cmd=*/0ul, /*arg=*/0x20000000ul, /*size=*/0x48ul); if (res != -1) r[0] = res; *(uint32_t*)0x20000440 = 5; *(uint32_t*)0x20000444 = 5; *(uint64_t*)0x20000448 = 0x20000080; *(uint8_t*)0x20000080 = 0x18; STORE_BY_BITMASK(uint8_t, , 0x20000081, 8, 0, 4); STORE_BY_BITMASK(uint8_t, , 0x20000081, 0, 4, 4); *(uint16_t*)0x20000082 = 0; *(uint32_t*)0x20000084 = 0; *(uint8_t*)0x20000088 = 0; *(uint8_t*)0x20000089 = 0; *(uint16_t*)0x2000008a = 0; *(uint32_t*)0x2000008c = 0; *(uint8_t*)0x20000090 = 0x18; STORE_BY_BITMASK(uint8_t, , 0x20000091, 0, 0, 4); STORE_BY_BITMASK(uint8_t, , 0x20000091, 1, 4, 4); *(uint16_t*)0x20000092 = 0; *(uint32_t*)0x20000094 = r[0]; *(uint8_t*)0x20000098 = 0; *(uint8_t*)0x20000099 = 0; *(uint16_t*)0x2000009a = 0; *(uint32_t*)0x2000009c = 0; *(uint8_t*)0x200000a0 = 0x95; *(uint8_t*)0x200000a1 = 0; *(uint16_t*)0x200000a2 = 0; *(uint32_t*)0x200000a4 = 0; *(uint64_t*)0x20000450 = 0x20000040; memcpy((void*)0x20000040, "GPL\000", 4); *(uint32_t*)0x20000458 = 4; *(uint32_t*)0x2000045c = 0xee; *(uint64_t*)0x20000460 = 0x20000340; *(uint32_t*)0x20000468 = 0; *(uint32_t*)0x2000046c = 0; memset((void*)0x20000470, 0, 16); *(uint32_t*)0x20000480 = 0; *(uint32_t*)0x20000484 = 0; *(uint32_t*)0x20000488 = -1; *(uint32_t*)0x2000048c = 8; *(uint64_t*)0x20000490 = 0; *(uint32_t*)0x20000498 = 0; *(uint32_t*)0x2000049c = 0x10; *(uint64_t*)0x200004a0 = 0; *(uint32_t*)0x200004a8 = 0; *(uint32_t*)0x200004ac = 0; *(uint32_t*)0x200004b0 = 0; *(uint32_t*)0x200004b4 = 0; *(uint64_t*)0x200004b8 = 0; *(uint64_t*)0x200004c0 = 0; *(uint32_t*)0x200004c8 = 0x10; *(uint32_t*)0x200004cc = 0; syscall(__NR_bpf, /*cmd=*/5ul, /*arg=*/0x20000440ul, /*size=*/0x80ul); return 0; }