be366041fa
left/right is a weird way to refer to address ordering. Reviewed By: eugenis, MaskRay Differential Revision: https://reviews.llvm.org/D132611
18 lines
580 B
C++
18 lines
580 B
C++
// RUN: %clang_cl_asan -Od %s -Fe%t
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// RUN: not %run %t 2>&1 | FileCheck %s
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#include <malloc.h>
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int main() {
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char *buffer = (char*)realloc(0, 42);
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buffer[-1] = 42;
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// CHECK: AddressSanitizer: heap-buffer-overflow on address [[ADDR:0x[0-9a-f]+]]
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// CHECK: WRITE of size 1 at [[ADDR]] thread T0
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// CHECK-NEXT: {{#0 .* main .*realloc_left_oob.cpp}}:[[@LINE-3]]
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// CHECK: [[ADDR]] is located 1 bytes before 42-byte region
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// CHECK: allocated by thread T0 here:
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// CHECK-NEXT: {{#0 .* realloc }}
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// CHECK-NEXT: {{#1 .* main .*realloc_left_oob.cpp}}:[[@LINE-8]]
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free(buffer);
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}
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