Help with recent CIFS issue

Cifs worked for years without any problems. Could be an issue caused by a fix such as:

  • Update to version 6.15
    • CVE-2022-27239: mount.cifs: fix length check for ip option parsing
      Previous check was true whatever the length of the input string was,
      leading to a buffer overflow in the subsequent strcpy call.
    • mount.cifs: fix verbose messages on option parsing