From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mout.web.de (mout.web.de [212.227.15.3]) (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 890651D1F4B for ; Tue, 19 Nov 2024 17:34:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=212.227.15.3 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1732037646; cv=none; b=CGCHiev+nqFbtR3a40Eg+5eb62Yjz4XTjNQkKzcILDa6vUAKz+b4CJ0L56/7zemutWTnpsYViokID0rAqAUwfOhXXhuKcXLP7cEOOM+OqjIR+hvqLebqPpvZD0JPjIXWkRF63raFkZ+PCQH5QYNBPCyfqBure8xZHtO3CTyQR4A= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1732037646; c=relaxed/simple; bh=3naWIHzYr16I1lpNoDZN0GqMtSma+VJOVWPtus496Hs=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=rDr5LPKKiRUUjyGfy9sD0ctoYnm2I8Vw1nrDva1PrikrRGbUiv/yIHHJN6ttoByMxwZFkM8Zl9i3XAODTu86PD3ZbcOHqeAWd2hqMzcePGpHBmFDOdm5DdGqY3zEe0aEGYafwkCAnWdV9HziWqntzWSX17tTF/rCp/Yu//B0tfI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=web.de; spf=pass smtp.mailfrom=web.de; dkim=pass (2048-bit key) header.d=web.de header.i=markus.elfring@web.de header.b=LFDhoGYF; arc=none smtp.client-ip=212.227.15.3 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=web.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=web.de Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=web.de header.i=markus.elfring@web.de header.b="LFDhoGYF" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=web.de; s=s29768273; t=1732037607; x=1732642407; i=markus.elfring@web.de; bh=3naWIHzYr16I1lpNoDZN0GqMtSma+VJOVWPtus496Hs=; h=X-UI-Sender-Class:Message-ID:Date:MIME-Version:Subject:To:Cc: References:From:In-Reply-To:Content-Type: Content-Transfer-Encoding:cc:content-transfer-encoding: content-type:date:from:message-id:mime-version:reply-to:subject: to; b=LFDhoGYFWkArmL4J29WlQwSLAPEDZZUIWc/AxDam930t2nLXO/vKA4x0YauGuUPv ngwp890UqjiZgm0PzB4QfRJIJFPwSpb3XssjjZLE4M4Lj+n8VuL8oFEciHQUK+SVV ab/I2+AFd9911tLR2fU1dvrUbOAhfc/FPgjYJqaLnsWNdFkRRnnLaHcBWrt9RLCr0 Mr3b3rgQM1Hxuk1cy4MxG8ROE3RH5qSekSec640FdbNlHs7Kv5923Y4lXq92iv0tz OwBEESIrreq64+6NjiGEXkS+1Y3l/7sKAoOZdqOnpV1tNVR8I5qxuI1BYl99rRFbe 2Abb9KNXASC5shwnHQ== X-UI-Sender-Class: 814a7b36-bfc1-4dae-8640-3722d8ec6cd6 Received: from [192.168.178.21] ([94.31.88.95]) by smtp.web.de (mrweb005 [213.165.67.108]) with ESMTPSA (Nemesis) id 1McZnl-1tjTw20czl-00bDFd; Tue, 19 Nov 2024 18:33:27 +0100 Message-ID: Date: Tue, 19 Nov 2024 18:33:24 +0100 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: x86/sev: Fix dereference NULL return value To: Shresth Prasad , x86@kernel.org Cc: Borislav Petkov , Dave Hansen , "H. Peter Anvin" , Ingo Molnar , Thomas Gleixner , LKML References: <20241119-fix-dereference-null-x86-sev-v1-1-82d59085e264@gmail.com> <9dd3d046-6949-4e42-ab5a-af505f9b3981@web.de> Content-Language: en-GB From: Markus Elfring In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Provags-ID: V03:K1:ox/a0VMdkzGG2NKz2C6o27ov3P7SaThK9NJplDXhPybA7u/Aofe bwmfXZoTj7s7+E2SKWEU1cjEQor9Ldaq8rdliYFSFD0RrWOfenvmIDzsnlUVY7WUX5OPP9m Ri47lJKDANSUf5AUNooYficib0w9meduZDzW31V1cJVHzH6DoP+5iyq14cxTS/WmLUT7hpH B8qi4px5+of3BARuRvkNw== X-Spam-Flag: NO UI-OutboundReport: notjunk:1;M01:P0:w4nzKtfb6g4=;synUxrgcIwFcuPrraj9fgjemeYW IethAPZq1/alrBzJ8YH9a64ZiUbTrIBWADRpC55yyF3Ttt2iIb7w4eEtQneTU48f9M0CsPlY4 MLmf7ejr0CmI+EhaUezSx9/wa0Elv4u1Tmkg4P5TUcQVjpE2ZAQpPBbBlvCRZs2dPma0NnzO1 UuIFCD9Wl0ooHpVuwfolE/16qmmukovObJ06j0pz9cxizsjgmTC9t42ogkXpjKBQqLlaG2ziz cqRKc0G4Xj0e9iBM7d2Z/ckLPbGqP9klBuZKIrwfGspw7HYa2aplNx0IHTc9/Ppc3W6sCwIZ6 tJHGuSo7z7Hfg0BFvBU2HMzQTihL4K6/TFt5aBUrAd7Qc4Xsk8TohHCWaGjLPyEUEg4zrV4X6 GB3k2UJ2a+jkO28CEAC4AXwFGdwZAirdAMjDmiViv019wzgRTP7SZIZWqPxAcuDgLe5UhjWCC FxQV0PslbeX0xEpCsdjbp9tu5/rNWh2oRqJ/jYVSa63mstTgoozJ8K2Craeqrt7fMwbNZBUAl EXkWDXtX0i6W7SL9AjRsxLsmxMRjSZ0Z8lmRJa489u5JgUa/hQSquNWJu/kTq6VG/Q9XSDNfI /tI4U3U95DVfUHZW9BO9Gk+FSgCLaEdKqso1y4kJWHdlaOgqnQzGW10mL4oU8vLwkEGd6DJkO YhYD3SUTsED+Z7bhcJgTmzju2YGrLWeuudHAm2hxJVgCNH3UZzGngQAx4rIv+28ZW7DOOHCu6 6OH2hmaDp0sHIu4EsIinUDKYkP8Z+E/9hoGAORhfzD1/8/OiIcld9LJdmqVFIQnhpTYMrdlji n7Gn4MRxX0UlGvyWDQcFjdFsoKUgYbqQFRVb1SrgT8nzOD9+cakQLcPWdvLXNKJcjzdIbbslF BiZRhKs6L8kx1dGiBqpYdK9/WAQilWIBSEIJPiLutTkc3AbL2TrhgrQE4 > For the Fixes tag, I'm not sure which commit hash I should put. Should I use > the commit where the function was introduced? How far can the overlooked function return value be traced back? Regards, Markus