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Date:   Fri, 07 Aug 2020 11:19:09 -0400
From:   "Alex Xu (Hello71)" <alex_y_xu@yahoo.ca>
Subject: wine fails to start with seccomp updates for v5.9-rc1
To:     Kees Cook <keescook@chromium.org>
Cc:     Linus Torvalds <torvalds@linux-foundation.org>,
        linux-kernel@vger.kernel.org, Aleksa Sarai <cyphar@cyphar.com>,
        Chris Palmer <palmer@google.com>,
        Christian Brauner <christian.brauner@ubuntu.com>,
        Christoph Hellwig <hch@lst.de>,
        Matt Denton <mpdenton@google.com>,
        Robert Sesek <rsesek@google.com>,
        Thadeu Lima de Souza Cascardo <cascardo@canonical.com>,
        Sargun Dhillon <sargun@sargun.me>,
        Shuah Khan <shuah@kernel.org>, Tycho Andersen <tycho@tycho.ws>,
        Will Deacon <will@kernel.org>, Will Drewry <wad@chromium.org>,
        Yonghong Song <yhs@fb.com>
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Hi,

On Linus' master, wine fails to start with the following error:

wine client error:0: write: Bad file descriptor

This issue is not present on 5.8. It appears to be caused by failure to=20
write to a pipe FD received via SCM_RIGHTS. Therefore, I tried reverting=20
9ecc6ea491f0, which resolved the issue.

Thanks,
Alex.