nat: Bail out if the regexp fails to compile and avoid a crash

If the regexp fails to compile the internal dfa is NULL and a
regexec will crash nicely. Fail and free the string if the regexp
fails to compile.
4 files changed
tree: 339fcec4f5244553b740add467333a9300d023b7
  1. hlrsync/
  2. linux-kernel/
  3. openbsc/
  4. wireshark/
  5. README