diff options
Diffstat (limited to 'libgo/misc/cgo/testsanitizers/testdata/asan2_fail.go')
-rw-r--r-- | libgo/misc/cgo/testsanitizers/testdata/asan2_fail.go | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/libgo/misc/cgo/testsanitizers/testdata/asan2_fail.go b/libgo/misc/cgo/testsanitizers/testdata/asan2_fail.go new file mode 100644 index 00000000000..3ab06085710 --- /dev/null +++ b/libgo/misc/cgo/testsanitizers/testdata/asan2_fail.go @@ -0,0 +1,34 @@ +// Copyright 2021 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package main + +/* +#include <stdlib.h> +#include <stdio.h> + +int *p; +int* f() { + int i; + p = (int *)malloc(5*sizeof(int)); + for (i = 0; i < 5; i++) { + p[i] = i+10; + } + return p; +} +*/ +import "C" +import ( + "fmt" + "unsafe" +) + +func main() { + a := C.f() + q5 := (*C.int)(unsafe.Add(unsafe.Pointer(a), 4*5)) + // Access to C pointer out of bounds. + *q5 = 100 // BOOM + // We shouldn't get here; asan should stop us first. + fmt.Printf("q5: %d, %x\n", *q5, q5) +} |