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Fri, 4 Sep 2026 20:49:24 +0000 (GMT) Message-ID: <4d24731cbc3ea3d359a26bb70eb97386f409a988.camel@linux.ibm.com> Subject: Re: [PATCH v2] ima: allow users to specify the pcr index with IMA_MEASURE_PCR_IDX From: Mimi Zohar To: Julian Braha , roberto.sassu@huawei.com, dmitry.kasatkin@gmail.com, paul@paul-moore.com, jmorris@namei.org, serge@hallyn.com Cc: eric.snowberg@oracle.com, linux-integrity@vger.kernel.org, linux-security-module@vger.kernel.org, linux-kernel@vger.kernel.org In-Reply-To: <20260904110911.4087260-1-julianbraha@gmail.com> References: <20260904110911.4087260-1-julianbraha@gmail.com> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Date: Fri, 04 Sep 2026 16:49:24 -0400 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Evolution 3.58.3 (3.58.3-1.fc43) X-TM-AS-GCONF: 00 X-Proofpoint-Reinject: loops=2 maxloops=12 X-Proofpoint-GUID: dR31GZAr5cAxMmVujybJD0ffFeFkWEUJ X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwOTA0MDE4OSBTYWx0ZWRfX2r9RSu7/ZvT2 FhCRxFTf0MlDecN4lAP2ZgomEYPfsueeqT1yLlWwdfq6kep8lOe549/ScnKKps/d4mETeMEGrYT ni5powzhuH6smXGUu/12nHBCkmsd9AMKTHax8i1LRMKLrvw7FvL9dt6ajKK/yHYVcBhq8k6HcBg MX+OK3iibkgRNaHBaSFD61qyWVFrBcdpBXeBnpnlbpj6lobPp+Q3yG6yKYoAywfiml52KfXJmMG G73T2ERAbqEXXbW+QNCMn2XuVddox2gJWrMNB17IvBBv8gwg/pnSB/aPl3FWGbTDAsSM3TnzGbz ynFakebkj8XChcLdbXMWZEXxZqk78uY9Li6aYfF/KjLkxGj5JTnMRYuOUT7XBVJFQOQQcfaCJCo gKd+HhQIFQ2Utri23C0YqPREfzDvKilHVV4wuHJBbVviorGSKDkx9aDeZPRNeT7uSusQmo8kmC6 dbkORilOutklx0OeHMw== X-Proofpoint-ORIG-GUID: j3YBK80ZxH98Glb3_RzBau1hT7YARKN9 X-Proofpoint-Spam-Info: AW1haW4tMjYwOTA0MDE4OSBTYWx0ZWRfX2F3sR7xU0LdL 0j46xSStDVPAc6NfkFxIZ81dQnwztZ3YGH4y97m7E2OyR4yW/zrOajR4YZWzbS0aabEpwTzhpqz FDGTHdJwUOzPIFImqyFFs7YpP/4ghT4= X-Authority-Analysis: v=2.4 cv=B92JFutM c=1 sm=1 tr=0 ts=6a9b2ed7 cx=c_pps a=aDMHemPKRhS1OARIsFnwRA==:117 a=aDMHemPKRhS1OARIsFnwRA==:17 a=IkcTkHD0fZMA:10 a=VdqzKS8jKosA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=V8glGbnc2Ofi9Qvn3v5h:22 a=VwQbUJbxAAAA:8 a=pGLkceISAAAA:8 a=K8a6fEQXthkGtAHtFCQA:9 a=QEXdDO2ut3YA:10 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-09-04_05,2026-09-03_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 adultscore=0 spamscore=0 clxscore=1015 suspectscore=0 phishscore=0 lowpriorityscore=0 bulkscore=0 priorityscore=1501 impostorscore=0 malwarescore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2609040189 On Fri, 2026-09-04 at 12:09 +0100, Julian Braha wrote: > The IMA_MEASURE_PCR_IDX option is currently not visible in the kconfig > frontend, so it always uses its default, 10. This means that the > 'range 8 14' is dead code, and users are unable to specify the pcr index > value. >=20 > In a previous discussion, Mimi explained that users should be able to use > this config option to specify the pcr index. [1] >=20 > Let's add a prompt for users to specify the pcr index, when EXPERT is > enabled. >=20 > This dead range was found by kconfirm, a static analysis tool for Kconfig= . >=20 > Link: https://lore.kernel.org/all/1feff118-4afa-4b9c-86f1-271a7a88208f@gm= ail.com/T/#mc4efa2491b4937eb7c9e532c29ffba516a70e662 [1] > Signed-off-by: Julian Braha Thanks, Julian. The patch is now queued in the next-integrity branch. Mimi