linux-kernel - Linux 4.11 - broken enlightenment window manager (fixed in 4.12)

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Message-ID: <20170609093509.3a265d0b@gmail.com>
Date:   Fri, 9 Jun 2017 09:35:09 +0200
From:   Ralph Sennhauser <ralph.sennhauser@...il.com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     stable@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Linux 4.11 - broken enlightenment window manager (fixed in 4.12)

Hi Greg,

With 4.11 the enlightenment window mangers fails to start setuid
children due to commit 64b875f7ac8a ("ptrace: Capture the ptracer's
creds not PT_PTRACE_CAP").

Commit c70d9d809fde ("ptrace: Properly initialize ptracer_cred on
fork") in Linus tree fixes the issue. Tested with v4.11.4. Please
consider cherry-picking.

Thanks
Ralph