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Message-ID: <20200624030818.bvv3kld63sguqxxm@treble>
Date: Tue, 23 Jun 2020 22:08:18 -0500
From: Josh Poimboeuf <jpoimboe@...hat.com>
To: Kristen Carlson Accardi <kristen@...ux.intel.com>
Cc: keescook@...omium.org, tglx@...utronix.de, mingo@...hat.com,
bp@...en8.de, Peter Zijlstra <peterz@...radead.org>,
arjan@...ux.intel.com, x86@...nel.org, linux-kernel@...r.kernel.org,
kernel-hardening@...ts.openwall.com, rick.p.edgecombe@...el.com
Subject: Re: [PATCH v3 01/10] objtool: Do not assume order of parent/child
functions
On Tue, Jun 23, 2020 at 10:23:18AM -0700, Kristen Carlson Accardi wrote:
> If a .cold function is examined prior to it's parent, the link
> to the parent/child function can be overwritten when the parent
> is examined. Only update pfunc and cfunc if they were previously
> nil to prevent this from happening.
>
> Signed-off-by: Kristen Carlson Accardi <kristen@...ux.intel.com>
> Acked-by: Josh Poimboeuf <jpoimboe@...hat.com>
FYI, this patch is now in the tip tree.
--
Josh
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