File: unsymbolized.cpp

package info (click to toggle)
llvm-toolchain-11 1%3A11.0.1-2
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 995,808 kB
  • sloc: cpp: 4,767,656; ansic: 760,916; asm: 477,436; python: 170,940; objc: 69,804; lisp: 29,914; sh: 23,855; f90: 18,173; pascal: 7,551; perl: 7,471; ml: 5,603; awk: 3,489; makefile: 2,573; xml: 915; cs: 573; fortran: 503; javascript: 452
file content (25 lines) | stat: -rw-r--r-- 860 bytes parent folder | download | duplicates (8) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
 
// When we link a binary without the -debug flag, ASan should print out VAs
// instead of RVAs. The frames for main and do_uaf should be above 0x400000,
// which is the default image base of an executable.

// RUN: rm -f %t.pdb
// RUN: %clangxx_asan -c -O2 %s -o %t.obj
// RUN: link /nologo /OUT:%t.exe %t.obj %asan_lib %asan_cxx_lib
// RUN: not %run %t.exe 2>&1 | FileCheck %s

#include <stdlib.h>
#include <stdio.h>
int __attribute__((noinline)) do_uaf(void);
int main() {
  int r = do_uaf();
  printf("r: %d\n", r);
  return r;
}
int do_uaf(void) {
  char *x = (char*)malloc(10 * sizeof(char));
  free(x);
  return x[5];
  // CHECK: AddressSanitizer: heap-use-after-free
  // CHECK: #0 {{0x[a-f0-9]+ \(.*[\\/]unsymbolized.cpp.*.exe\+(0x40|0x14000)[a-f0-9]{4}\)}}
  // CHECK: #1 {{0x[a-f0-9]+ \(.*[\\/]unsymbolized.cpp.*.exe\+(0x40|0x14000)[a-f0-9]{4}\)}}
}