malloc-size-too-big.cpp
921 Bytes
// RUN: %clangxx_asan -O0 %s -o %t
// RUN: %env_asan_opts=allocator_may_return_null=0 not %run %t 2>&1 | FileCheck %s
// RUN: %env_asan_opts=allocator_may_return_null=1 %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-NULL
// REQUIRES: stable-runtime
#include <stdio.h>
#include <stdlib.h>
static const size_t kMaxAllowedMallocSizePlusOne =
#if __LP64__ || defined(_WIN64)
(1ULL << 40) + 1;
#else
(3UL << 30) + 1;
#endif
int main() {
void *p = malloc(kMaxAllowedMallocSizePlusOne);
// CHECK: {{ERROR: AddressSanitizer: requested allocation size .* \(.* after adjustments for alignment, red zones etc\.\) exceeds maximum supported size}}
// CHECK: {{#0 0x.* in .*malloc}}
// CHECK: {{#1 0x.* in main .*malloc-size-too-big.cpp:}}[[@LINE-3]]
// CHECK: SUMMARY: AddressSanitizer: allocation-size-too-big
printf("malloc returned: %zu\n", (size_t)p);
// CHECK-NULL: malloc returned: 0
return 0;
}