From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from abb.hmeau.com (abb.hmeau.com [180.181.231.80]) (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 1A924344D88; Sat, 15 Aug 2026 01:26:14 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=180.181.231.80 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786757178; cv=none; b=sMs9JIFR8G7RFhc5zxujEC4IsMfiCBbnvGbAMfTA4/rLNxxY5A2ylKZXL9QQvKWtfO0m2NCb4o/AJTFDHR3/Ns0AkH8UHCmsEfWLnphHzI6Gt1rr5uG4tu+rTjLDuAWXfqSU7IsvEMGnCEQresyEsWWAjA9umSZz4VsrIQQ/js4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786757178; c=relaxed/simple; bh=KhTNr/50lbXMx/ztsnuhARHGCEwZuYFRYqlpplZAUqk=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=Od9haVP/yXipLsY0ElU4N0WSn+yRiX3FeZucG1JCWjl3N0p4QkvxHYWo9skqBk0z9BGaQ8n1VOvUuAP0RST9TggZFP94HUSGTd+g26xt/HyK379bo47+aDCYrezMlFxjiA1EtlNRUPcz4OXg99dvdibc5yFIi7GlNIiGif3h0uc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=gondor.apana.org.au; spf=pass smtp.mailfrom=gondor.apana.org.au; dkim=pass (2048-bit key) header.d=gondor.apana.org.au header.i=@gondor.apana.org.au header.b=gFGR6T/3; arc=none smtp.client-ip=180.181.231.80 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=gondor.apana.org.au Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gondor.apana.org.au Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gondor.apana.org.au header.i=@gondor.apana.org.au header.b="gFGR6T/3" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gondor.apana.org.au; s=h01; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:cc:to:subject:message-id:date: from:content-type:reply-to; bh=k9u2F0jxMQRDWxjUAvaCbrfLZGFeFer9UNUh8841OWA=; b=gFGR6T/3VF0WvOFXCsRf36W8uN75NWjriGkrGpSinn+s0kerkkMJUkwLvsIH2mjSljD4U3F3jQK RGMkYSNzS7wrUu1pHU04XO9QZyrKwCUhCdsNmZ75D/sPk+k+LleJiOLU1N9SmiOjxEpUhYsU2vwQZ wAoIaAz/Ml71pKpR/He23rVMpg0Oue7SLCFK03H4wFdN8zM+j7ZZBergr2OghRtiBnCmRZfiJfJvL Jor52PbFFn0x/ExXf901euLyMWs5zsqzR53HFeaFR2Fza/ipU6+gJueYD4VgRirU+1QyBDP/kTZoa owUDrsqQmPUEww9eKX7Y87w/CF8XVzzwfmKw==; Received: from loth.rohan.me.apana.org.au ([192.168.167.2]) by formenos.hmeau.com with smtp (Exim 4.98.2 #2 (Debian)) id 1wv39w-000000054ti-12Nt; Sat, 15 Aug 2026 09:26:05 +0800 Received: by loth.rohan.me.apana.org.au (sSMTP sendmail emulation); Sat, 15 Aug 2026 11:26:04 +1000 Date: Sat, 15 Aug 2026 11:26:04 +1000 From: Herbert Xu To: Jan Sebastian =?iso-8859-1?Q?G=F6tte?= Cc: "David S. Miller" , David Howells , Jakub Kicinski , Michael Bommarito , Jeffrey Altman , linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org, linux-hardening@vger.kernel.org, stable@vger.kernel.org Subject: Re: [PATCH] crypto/krb5: use kfree_sensitive() for derived key buffers Message-ID: References: <20260803192621.329577-1-linux@jaseg.de> 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=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20260803192621.329577-1-linux@jaseg.de> On Mon, Aug 03, 2026 at 09:26:21PM +0200, Jan Sebastian Götte wrote: > crypto_krb5_prepare_encryption() and crypto_krb5_prepare_checksum() > free the buffer holding the freshly derived keys with plain kfree(), > leaving the key material behind in the freed slab object. > > Fixes: 3936f02bf2d3 ("crypto/krb5: Implement Kerberos crypto core") > Cc: stable@vger.kernel.org > Signed-off-by: Jan Sebastian Götte > --- > crypto/krb5/krb5_api.c | 8 ++++---- > 1 file changed, 4 insertions(+), 4 deletions(-) Patch applied. Thanks. -- Email: Herbert Xu Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt