[LLVMbugs] [Bug 20471] New: vector<bool>::resize(N) segfaults for N > 2^32-2^6

bugzilla-daemon at llvm.org bugzilla-daemon at llvm.org
Sun Jul 27 23:18:27 PDT 2014


            Bug ID: 20471
           Summary: vector<bool>::resize(N) segfaults for N > 2^32-2^6
           Product: libc++
           Version: 3.4
          Hardware: Macintosh
                OS: MacOS X
            Status: NEW
          Severity: normal
          Priority: P
         Component: All Bugs
          Assignee: unassignedclangbugs at nondot.org
          Reporter: sharker81 at gmail.com
                CC: llvmbugs at cs.uiuc.edu, mclow.lists at gmail.com
    Classification: Unclassified

Compiler details:
Configured with: --prefix=/Applications/Xcode.app/Contents/Developer/usr
Apple LLVM version 5.1 (clang-503.0.40) (based on LLVM 3.4svn)
Target: x86_64-apple-darwin13.3.0
Thread model: posix

The following code segfaults when executed:

#include <vector>
int main () {
  std::vector<bool> data;
  data . resize (4294967233); // == 2^32 - 2^6 + 1                              
  return 0;

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