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From:   John Ogness <john.ogness@linutronix.de>
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To:     Alexander Gordeev <agordeev@linux.ibm.com>
Cc:     Petr Mladek <pmladek@suse.com>,
        Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>,
        Sergey Senozhatsky <sergey.senozhatsky@gmail.com>,
        Steven Rostedt <rostedt@goodmis.org>,
        Linus Torvalds <torvalds@linux-foundation.org>,
        linux-kernel@vger.kernel.org, Sven Schnelle <svens@linux.ibm.com>
Subject: Re: [PATCH] printk: fix buffer overflow potential for print_text()
In-Reply-To: <20210226171943.GA12088@oc3871087118.ibm.com>
References: <20210114170412.4819-1-john.ogness@linutronix.de> <20210226171943.GA12088@oc3871087118.ibm.com>
Date:   Fri, 26 Feb 2021 18:39:13 +0100
Message-ID: <87ft1iwwxq.fsf@jogness.linutronix.de>
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On 2021-02-26, Alexander Gordeev <agordeev@linux.ibm.com> wrote:
> I am seeing KASAN reporting incorrect 1-byte access in exactly
> same location Sven has identified before. In case there no
> fix for it yet, please see below what happens in case of pretty
> large buffer - WARN_ONCE() invocation in my case.

It looks like you have not applied the fix yet:

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=08d60e5999540110576e7c1346d486220751b7f9

John Ogness