[Bug 255869] [PATCH] kern: Fix a use after free bug in sodealloc

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From: <bugzilla-noreply_at_freebsd.org>
Date: Mon, 17 May 2021 18:14:01 UTC

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=255869

Mark Johnston <markj@FreeBSD.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |markj@FreeBSD.org
             Status|New                         |Open
           Assignee|bugs@FreeBSD.org            |markj@FreeBSD.org

--- Comment #1 from Mark Johnston <markj@FreeBSD.org> ---
I think this is not formally correct.  The uidinfo structure itself is
protected by a reference count which is owned by the cred reference.  Really we
should simply defer the crfree() call to until after the chgsbsize() calls.

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