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  1. JDK
  2. JDK-8216355

missing NULL checks in libnet in interface iteration and potential resource leak in getMacAddress

    Details

    • Type: Bug
    • Status: Resolved
    • Priority: P4
    • Resolution: Fixed
    • Affects Version/s: 12, 13
    • Fix Version/s: 13
    • Component/s: core-libs
    • Labels:
    • Subcomponent:
    • Resolved In Build:
      b04
    • CPU:
      generic
    • OS:
      os_x

      Description

      In NetworkInterface.c and Inet6AddressImpl.c we have some coding that omits checking for ifa_addr == NULL when iterating on the result of the getifaddrs call. This is similar to what has been fixed in hotspot with

      https://bugs.openjdk.java.net/browse/JDK-8208676

      The issues are in the bsd/macOS coding. However bsd/macOS also document that ifa_addr can be NULL in special cases (not sure how likely it is to see it "in the wild").
      See
      https://www.freebsd.org/cgi/man.cgi?getifaddrs
      https://developer.apple.com/library/archive/documentation/System/Conceptual/ManPages_iPhoneOS/man3/getifaddrs.3.html

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            • Assignee:
              mbaesken Matthias Baesken
              Reporter:
              mbaesken Matthias Baesken
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              Dates

              • Created:
                Updated:
                Resolved: