File: use-after-scope-temp.cpp

package info (click to toggle)
llvm-toolchain-16 1%3A16.0.6-15~deb12u1
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,634,792 kB
  • sloc: cpp: 6,179,261; ansic: 1,216,205; asm: 741,319; python: 196,614; objc: 75,325; f90: 49,640; lisp: 32,396; pascal: 12,286; sh: 9,394; perl: 7,442; ml: 5,494; awk: 3,523; makefile: 2,723; javascript: 1,206; xml: 886; fortran: 581; cs: 573
file content (19 lines) | stat: -rw-r--r-- 446 bytes parent folder | download | duplicates (15) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
 
// RUN: %clangxx_asan -O1 %s -o %t && not %run %t 2>&1 | FileCheck %s

struct IntHolder {
  int val;
};

const IntHolder *saved;

__attribute__((noinline)) void save(const IntHolder &holder) {
  saved = &holder;
}

int main(int argc, char *argv[]) {
  save({argc});
  int x = saved->val;  // BOOM
  // CHECK: ERROR: AddressSanitizer: stack-use-after-scope
  // CHECK:  #0 0x{{.*}} in main {{.*}}use-after-scope-temp.cpp:[[@LINE-2]]
  return x;
}