linux-hardening - Re: [PATCH] pstore: fix ftrace dump, when ECC is enabled

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Message-Id: <177152638326.270874.15229340696077365324.b4-ty@kernel.org>
Date: Thu, 19 Feb 2026 10:39:47 -0800
From: Kees Cook <kees@...nel.org>
To: Tony Luck <tony.luck@...el.com>,
	"Guilherme G. Piccoli" <gpiccoli@...lia.com>,
	linux-hardening@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Steven Rostedt <rostedt@...dmis.org>,
	Masami Hiramatsu <mhiramat@...nel.org>,
	Mark Rutland <mark.rutland@....com>,
	linux-trace-kernel@...r.kernel.org,
	Andrey Skvortsov <andrej.skvortzov@...il.com>
Cc: Kees Cook <kees@...nel.org>
Subject: Re: [PATCH] pstore: fix ftrace dump, when ECC is enabled

On Sun, 15 Feb 2026 21:51:55 +0300, Andrey Skvortsov wrote:
> total_size is sum of record->size and record->ecc_notice_size (ECC: No
> errors detected). When ECC is not used, then there is no problem.
> When ECC is enabled, then ftrace dump is decoded incorrectly after
> restart.
> 
> First this affects starting offset calculation, that breaks
> reading of all ftrace records.
> 
> [...]

Applied to for-next/pstore, thanks!

[1/1] pstore: fix ftrace dump, when ECC is enabled
      https://git.kernel.org/kees/c/07b7ece8aca0

Take care,

-- 
Kees Cook