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List:       openjdk-hotspot-runtime-dev
Subject:    Re: RFR: 8295264: Fix PaX check on RISC-V
From:       Ludovic Henry <luhenry () openjdk ! org>
Date:       2022-11-23 20:40:22
Message-ID: 3LHbE7WNsVdpJEt9pTfJpGkzXg5ODd6E41PsGl0fklc=.94fa0500-fc37-4b35-89e8-a47316d01843 () github ! com
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On Thu, 13 Oct 2022 07:49:55 GMT, Ludovic Henry <luhenry@openjdk.org> wrote:

> On Linux RISC-V, PROT_WRITE doesn't imply PROT_READ [1]
> 
> The fix is to pass PROT_READ|PROT_WRITE. That matches all other calls to mmap in \
> hotspot. 
> [1] https://lkml.org/lkml/2022/9/8/1066

It should be extremely safe to backport, and it explicits the default behavior to \
paper over a kernel bug. Let me request backport in JBS.

-------------

PR: https://git.openjdk.org/jdk/pull/10690


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