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Linux reports memfd_create() being called without MFD_EXEC or MFD_NOEXEC
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From: |
Kerin Millar |
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Subject: |
Linux reports memfd_create() being called without MFD_EXEC or MFD_NOEXEC_SEAL set |
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Date: |
Sat, 27 Apr 2024 11:00:15 +0100 |
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User-agent: |
Cyrus-JMAP/3.11.0-alpha0-386-g4cb8e397f9-fm-20240415.001-g4cb8e397 |
Hi,
At some point after upgrading to bash-5.3-alpha, the following message appeared
in my kernel ring buffer.
[700406.870502] bash[3089019]: memfd_create() called without MFD_EXEC or
MFD_NOEXEC_SEAL set
Unfortunately, it took me a while to notice the presence of this message.
Therefore, I am uncertain as to what bash was being tasked with at the time
that it was logged. The inference of the message seems clear, however. The
presently running kernel is 6.6.28.
--
Kerin Millar