linux-kernel - Re: [PATCH] KEYS: prevent NULL pointer dereference in find_asymmetric

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Message-Id: <CZZK77BY3FK4.2WMP1X5H9GTL1@kernel.org>
Date: Thu, 21 Mar 2024 18:12:56 +0200
From: "Jarkko Sakkinen" <jarkko@...nel.org>
To: "Roman Smirnov" <r.smirnov@....ru>, "David Howells"
 <dhowells@...hat.com>, "Herbert Xu" <herbert@...dor.apana.org.au>, "David
 S. Miller" <davem@...emloft.net>, "Andrew Zaborowski"
 <andrew.zaborowski@...el.com>
Cc: "keyrings@...r.kernel.org" <keyrings@...r.kernel.org>,
 "linux-crypto@...r.kernel.org" <linux-crypto@...r.kernel.org>,
 "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
 "lvc-project@...uxtesting.org" <lvc-project@...uxtesting.org>, "Sergey
 Shtylyov" <s.shtylyov@....ru>
Subject: Re: [PATCH] KEYS: prevent NULL pointer dereference in
 find_asymmetric_key()

On Wed Mar 20, 2024 at 10:21 AM EET, Roman Smirnov wrote:
> On Tue, 19 Mar 2024 22:14:22 +0200 Jarkko Sakkinen wrote:
> > On Tue Mar 19, 2024 at 4:44 PM EET, Roman Smirnov wrote:
> > > On Tue, 19 Mar 2024 01:39:00 +0200 Jarkko Sakkinen wrote:
> > > > On Fri Mar 15, 2024 at 12:33 PM EET, Roman Smirnov wrote:
> [...]
> > > > >
> > > > > Found by Linux Verification Center (linuxtesting.org) with Svace.
> > > > 
> > > > I'm not sure if this should be part of the commit message.
> > >
> > > I have already submitted patches with this line, some have been
> > > accepted. It is important for the Linux Verification Center to mark
> > > patches as closing issues found with Svace.
> > >
> > > > >
> > > > > Fixes: 7d30198ee24f ("keys: X.509 public key issuer lookup without AKID")
> > > > > Suggested-by: Sergey Shtylyov <s.shtylyov@....ru>
> > > > 
> > > > Should be reported-by.
> > >
> > > The suggested-by tag belongs to Sergey because he suggested the fix,
> > > subject/description of the patch. The tag reported-by belongs to
> > > Svace tool.
> >
> > 1. I did not see any reported-by tags in this which is requirement.
> > 2. Who did find the issue using that tool? I don't put reported-by to
> >    GDB even if I use that find the bug.
>
> Svace is an automated bug finding tool. This error was found during
> source code analysis by the program, so the tag reported-by does not
> belong to any person. I don't know what to do in such a situation,
> but write something like:
>
>     Reported-by: Svace
>
> would be weird. I think that the line "Found by Linux ... with Svace"
> could be a substitute for the tag.

I'd prefer a person here that used the tool as it is not korg hosted
automated tool.

BR, Jarkko