Details

    • Type: Bug
    • Status: Resolved
    • Priority: P2
    • Resolution: Duplicate
    • Affects Version/s: 11
    • Fix Version/s: 11
    • Component/s: security-libs
    • Labels:

      Description

      Reported in security-dev@openjdk, http://mail.openjdk.java.net/pipermail/security-dev/2018-July/017538.html
      ----------------------------------------
      Please look at the stack traces below.

      The server code accept() a SSLSocket, then calls startHandshake() in a
      different thread.
      The client code sends the TLS handshake bytes very slowly.
      The server code waits for a bit for the handshake to finish, then
      attempts to close the socket, but it cannot due to the deadlock below.
      The client stops sending the TLS handshake bytes and now the server is
      stuck forever.

      I think invoking close() should wake up the read() with an exception,
      rather than trying to grab the same lock held by the read, as
      asynchronous closes from other threads happen all the times.

      The issue does not happen with JDK 9, 10, 11-ea+18, but does happen
      with 11-ea+21.

      Thanks!

      ---

      "main@1" prio=5 tid=0x1 nid=NA waiting for monitor entry
        java.lang.Thread.State: BLOCKED
      waiting for pool-1-thread-1@2224 to release lock on <0xac7> (a
      sun.security.ssl.SSLSocketImpl)
        at sun.security.ssl.SSLSocketImpl.close(SSLSocketImpl.java:447)

      "pool-1-thread-1@2224" prio=5 tid=0x19 nid=NA runnable
        java.lang.Thread.State: RUNNABLE
      blocks main@1
        at java.net.SocketInputStream.socketRead0(SocketInputStream.java:-1)
        at java.net.SocketInputStream.socketRead(SocketInputStream.java:115)
        at java.net.SocketInputStream.read(SocketInputStream.java:168)
        at java.net.SocketInputStream.read(SocketInputStream.java:140)
        at sun.security.ssl.SSLSocketInputRecord.read(SSLSocketInputRecord.java:464)
        at sun.security.ssl.SSLSocketInputRecord.decode(SSLSocketInputRecord.java:167)
        at sun.security.ssl.SSLTransport.decode(SSLTransport.java:108)
        at sun.security.ssl.SSLSocketImpl.decode(SSLSocketImpl.java:877)
        at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:810)
        - locked <0xac7> (a sun.security.ssl.SSLSocketImpl)
        at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:383)

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              • Assignee:
                jnimeh Jamil Nimeh
                Reporter:
                xuelei Xue-Lei Fan
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                • Created:
                  Updated:
                  Resolved: