Messages in this thread | | | Date | Mon, 18 Mar 2024 08:50:46 -0400 | From | Sasha Levin <> | Subject | Re: [PATCH AUTOSEL 6.1 10/12] enic: Avoid false positive under FORTIFY_SOURCE |
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On Mon, Mar 11, 2024 at 10:03:35PM +0100, Pavel Machek wrote: >Hi! > >> From: Kees Cook <keescook@chromium.org> >> >> [ Upstream commit 40b9385dd8e6a0515e1c9cd06a277483556b7286 ] >> >> FORTIFY_SOURCE has been ignoring 0-sized destinations while the kernel >> code base has been converted to flexible arrays. In order to enforce >> the 0-sized destinations (e.g. with __counted_by), the remaining 0-sized >> destinations need to be handled. Unfortunately, struct vic_provinfo >> resists full conversion, as it contains a flexible array of flexible >> arrays, which is only possible with the 0-sized fake flexible array. >> >> Use unsafe_memcpy() to avoid future false positives under >> CONFIG_FORTIFY_SOURCE. > >This prepares for future chagnes, but I don't believe we'll port them >to stable.
Dropped, thanks.
-- Thanks, Sasha
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