From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id EE48D39150E; Fri, 14 Aug 2026 19:56:48 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786737410; cv=none; b=iw7mLmp6aiKPAhIzwgH4Xe8XaL6nrEG2bJmQpS/ipJvA+UlDVmztisYg7Ggt+c+HwuqLws6qzyeovjX2lVyKxNCnTfiSiRwC9qTdlFSvFxxYJjz6vVfYriGFmhKJ102NHZ+yr9LvkHCdy1q23bEfZ3nIrnVEku8r+YNj32tbTR8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786737410; c=relaxed/simple; bh=MzQ1VUBbgxNAW9gLOwm9NEaScQIEvJlQNgkYZxpVWn0=; h=Date:From:To:Cc:Subject:Message-Id:In-Reply-To:References: Mime-Version:Content-Type; b=n4b3SQhe3l70C1rvSSmha1sgSFLJeb8vislTSb2DWl1SoVIFeRbwNSOJ9lOhHi9ND7ZPXoQDBEm5NRxi2+TeKWxF4c1xQG4ptEOphprt3/mTwIApK9CMpwsxRexvDl+eoaeAXrBsJDJnE1QMl+D9piXT2sDLSZtRAigx9PFvD2s= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b=AZcqb3i+; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b="AZcqb3i+" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 595981F000E9; Fri, 14 Aug 2026 19:56:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux-foundation.org; s=korg; t=1786737408; bh=YuNGGAzC2eZf8ksSaCKBLE9s4m+Gv139JqVdt7tq24M=; h=Date:From:To:Cc:Subject:In-Reply-To:References; b=AZcqb3i+uPmNqx9+2kwl/U6GBWQ8k0yclngi5d9StALiJ7ubbDTWTKsq+FsQOKKcR BcILgwl6JQvYjbG6CYuzoe6UVGAaRoGeYPeqg/Ne73mgATOJmSURcu3PiA+WnRxtxy UBaEf0ZT7zLRDwCl2alWMmw4/UyTJKbCXHTlRHHo= Date: Fri, 14 Aug 2026 12:56:47 -0700 From: Andrew Morton To: Sebastian Andrzej Siewior Cc: linux-kernel@vger.kernel.org, linux-hardening@vger.kernel.org, Andy Shevchenko , Kees Cook , Petr Mladek , Rasmus Villemoes , Sergey Senozhatsky , Steven Rostedt , Tycho Andersen Subject: Re: [PATCH 0/2] vsprintf: Don't leak pointers Message-Id: <20260814125647.3e10a3441ca204855b135a5e@linux-foundation.org> In-Reply-To: <20260814144854.746840-1-bigeasy@linutronix.de> References: <20260814144854.746840-1-bigeasy@linutronix.de> X-Mailer: Sylpheed 3.8.0beta1 (GTK+ 2.24.33; x86_64-pc-linux-gnu) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit On Fri, 14 Aug 2026 16:48:52 +0200 Sebastian Andrzej Siewior wrote: > It is possible to leak pointers via %ps without KALLSYMS enabled. > With KALLSYMS pointers can be leaked if they can not be resolved. > > The tiny series has two patches, one for each issue. > Thanks. fwiw, Sashiko flagged a few possible issues: https://sashiko.dev/#/patchset/20260814144854.746840-1-bigeasy@linutronix.de