Problem easily duplicated, thanks for the reproducer.

I've updated the bug with the info.

Brad


On 3/24/2022 9:13 AM, Chris Vest wrote:
On Wed, Mar 23, 2022 at 10:38 AM Bradford Wetmore <bradford.wetm...@oracle.com <mailto:bradford.wetm...@oracle.com>> wrote:

    Offhand, sounds like a bug to me.  I've filed:

    https://bugs.openjdk.java.net/browse/JDK-8283577
    <https://bugs.openjdk.java.net/browse/JDK-8283577>


Thanks. The in-place use of the input buffer might also be unexpected even when the buffer is not read-only.

    By chance, do you have a simple reproducer handy?


See https://github.com/netty/netty/pull/12213#issuecomment-1077796917 <https://urldefense.com/v3/__https://github.com/netty/netty/pull/12213*issuecomment-1077796917__;Iw!!ACWV5N9M2RV99hQ!fZx3LxRdafSPcHg6-4XPFumXYR6gTlOaQfC14ixjjjwlZK7IbHD4voW9gxXeHFbPRTToQg$>


    Brad



    On 3/23/2022 9:54 AM, Chris Vest wrote:
     > Hi,
     >
     > In Netty we've been trying to design some safer APIs, and
    attempted to
     > make more use of read-only ByteBuffers.
     >
     > We discovered that SSLEngine.unwrap does not like read-only input
     > buffers, even though the input buffers should in theory only be read
     > from. We obviously make sure that the output buffers are writable.
     >
     > By my reading of the javadoc, and the code, I believe this was
    intended
     > to work - or at least not intended to not work - but probably wasn't
     > tested directly.
     >
     > When we try we get this stack trace on adopt-openjdk-11.0.7:
     >
     >     javax.net.ssl.SSLProtocolException: null
     >     at
    java.base/sun.security.ssl.Alert.createSSLException(Alert.java:129)
     >     at
>  java.base/sun.security.ssl.TransportContext.fatal(TransportContext.java:326)
     >     at
>  java.base/sun.security.ssl.TransportContext.fatal(TransportContext.java:269)
     >     at
>  java.base/sun.security.ssl.TransportContext.fatal(TransportContext.java:264)
     >     at
    java.base/sun.security.ssl.SSLTransport.decode(SSLTransport.java:118)
     >     at
>  java.base/sun.security.ssl.SSLEngineImpl.decode(SSLEngineImpl.java:668)
     >     at
>  java.base/sun.security.ssl.SSLEngineImpl.readRecord(SSLEngineImpl.java:623)
     >     at
>  java.base/sun.security.ssl.SSLEngineImpl.unwrap(SSLEngineImpl.java:441)
     >     at
>  java.base/sun.security.ssl.SSLEngineImpl.unwrap(SSLEngineImpl.java:420)
     >     at java.base/javax.net.ssl.SSLEngine.unwrap(SSLEngine.java:674)
     >     at
    io.netty5.handler.ssl.EngineWrapper.unwrap(EngineWrapper.java:100)
     >     at io.netty5.handler.ssl.SslHandler.unwrap(SslHandler.java:1227)
     >     at
>  io.netty5.handler.ssl.SslHandler.decodeJdkCompatible(SslHandler.java:1105)
     >     at io.netty5.handler.ssl.SslHandler.decode(SslHandler.java:1165)
     >     at
>  io.netty5.handler.codec.ByteToMessageDecoderForBuffer.decodeRemovalReentryProtection(ByteToMessageDecoderForBuffer.java:384)
     >     at
>  io.netty5.handler.codec.ByteToMessageDecoderForBuffer.callDecode(ByteToMessageDecoderForBuffer.java:327)
     >     ... 20 common frames omitted
     >     Caused by: java.nio.ReadOnlyBufferException: null
     >     at java.base/javax.crypto.Cipher.doFinal(Cipher.java:2493)
     >     at
>  java.base/sun.security.ssl.SSLCipher$T12GcmReadCipherGenerator$GcmReadCipher.decrypt(SSLCipher.java:1629)
     >     at
>  java.base/sun.security.ssl.SSLEngineInputRecord.decodeInputRecord(SSLEngineInputRecord.java:240)
     >     at
>  java.base/sun.security.ssl.SSLEngineInputRecord.decode(SSLEngineInputRecord.java:197)
     >     at
>  java.base/sun.security.ssl.SSLEngineInputRecord.decode(SSLEngineInputRecord.java:160)
     >     at
    java.base/sun.security.ssl.SSLTransport.decode(SSLTransport.java:108)
     >     ... 31 common frames omitted
     >
     >
     > I also tried this on a panama-preview snapshot JDK I have, and got a
     > similar stack trace:
     >
     >     % java -version
     >     openjdk version "19-internal" 2022-09-20
     >     OpenJDK Runtime Environment (fastdebug build
     >     19-internal-adhoc.chris.panama-foreign)
     >     OpenJDK 64-Bit Server VM (fastdebug build
     >     19-internal-adhoc.chris.panama-foreign, mixed mode)
     >
     >
     >     % git show
     >     commit 144af9f43cd2d6f88b675b8c85e4034e5b9d6695 (HEAD ->
     >     foreign-preview, origin/foreign-preview)
     >
     >
     >     javax.net.ssl.SSLProtocolException: null
     >     at
    java.base/sun.security.ssl.Alert.createSSLException(Alert.java:129)
     >     at
>  java.base/sun.security.ssl.TransportContext.fatal(TransportContext.java:371)
     >     at
>  java.base/sun.security.ssl.TransportContext.fatal(TransportContext.java:314)
     >     at
>  java.base/sun.security.ssl.TransportContext.fatal(TransportContext.java:309)
     >     at
    java.base/sun.security.ssl.SSLTransport.decode(SSLTransport.java:121)
     >     at
>  java.base/sun.security.ssl.SSLEngineImpl.decode(SSLEngineImpl.java:736)
     >     at
>  java.base/sun.security.ssl.SSLEngineImpl.readRecord(SSLEngineImpl.java:691)
     >     at
>  java.base/sun.security.ssl.SSLEngineImpl.unwrap(SSLEngineImpl.java:506)
     >     at
>  java.base/sun.security.ssl.SSLEngineImpl.unwrap(SSLEngineImpl.java:482)
     >     at java.base/javax.net.ssl.SSLEngine.unwrap(SSLEngine.java:719)
     >     at
    io.netty5.handler.ssl.EngineWrapper.unwrap(EngineWrapper.java:100)
     >     at io.netty5.handler.ssl.SslHandler.unwrap(SslHandler.java:1227)
     >     at
>  io.netty5.handler.ssl.SslHandler.decodeJdkCompatible(SslHandler.java:1105)
     >     at io.netty5.handler.ssl.SslHandler.decode(SslHandler.java:1165)
     >     at
>  io.netty5.handler.codec.ByteToMessageDecoderForBuffer.decodeRemovalReentryProtection(ByteToMessageDecoderForBuffer.java:384)
     >     at
>  io.netty5.handler.codec.ByteToMessageDecoderForBuffer.callDecode(ByteToMessageDecoderForBuffer.java:327)
     >     ... 20 common frames omitted
     >     Caused by: java.nio.ReadOnlyBufferException: null
     >     at java.base/javax.crypto.Cipher.doFinal(Cipher.java:2497)
     >     at
>  java.base/sun.security.ssl.SSLCipher$T13GcmReadCipherGenerator$GcmReadCipher.decrypt(SSLCipher.java:1933)
     >     at
>  java.base/sun.security.ssl.SSLEngineInputRecord.decodeInputRecord(SSLEngineInputRecord.java:239)
     >     at
>  java.base/sun.security.ssl.SSLEngineInputRecord.decode(SSLEngineInputRecord.java:196)
     >     at
>  java.base/sun.security.ssl.SSLEngineInputRecord.decode(SSLEngineInputRecord.java:159)
     >     at
    java.base/sun.security.ssl.SSLTransport.decode(SSLTransport.java:111)
     >     ... 31 common frames omitted
     >
     >
     > We can work around this in Netty since we need to support JDK
    versions
     > that has this issue anyway, but I think it's a bug that should be
    fixed
     > at some point.
     >
     > Thanks,
     > Chris
     >

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