[Bug 275306] 14.0-RELEASE: ossl(4) causes data corruption on encrypted ZFS filesystems/volumes

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From: <bugzilla-noreply_at_freebsd.org>
Date: Mon, 27 Nov 2023 19:13:44 UTC

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=275306

--- Comment #8 from Mark Johnston <markj@FreeBSD.org> ---
Hmm, I suspect that the problem is that ZFS expects to be able to dispatch
multiple operations on a session in parallel, but the ossl AES-GCM
implementation maintains some context in the session structure (the session
structure is 624 bytes so a bit large for hte stack) and neither ZFS nor
opencrypto nor ossl provide serialization.

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