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Wed, 25 Feb 2026 00:03:14 +0000 Received: from smtpav02.dal12v.mail.ibm.com (smtpav02.dal12v.mail.ibm.com [10.241.53.101]) by smtprelay05.dal12v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 61P03DrN32375318 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 25 Feb 2026 00:03:13 GMT Received: from smtpav02.dal12v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 1E5865805A; Wed, 25 Feb 2026 00:03:13 +0000 (GMT) Received: from smtpav02.dal12v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id D3A8E5805C; Wed, 25 Feb 2026 00:03:10 +0000 (GMT) Received: from li-43857255-d5e6-4659-90f1-fc5cee4750ad.ibm.com (unknown [9.61.83.151]) by smtpav02.dal12v.mail.ibm.com (Postfix) with ESMTP; Wed, 25 Feb 2026 00:03:10 +0000 (GMT) Message-ID: Subject: Re: [PATCH 1/3] integrity: Make arch_ima_get_secureboot integrity-wide From: Mimi Zohar To: Ard Biesheuvel Cc: Coiby Xu , Dave Hansen , linux-integrity@vger.kernel.org, Heiko Carstens , Roberto Sassu , Catalin Marinas , Will Deacon , Madhavan Srinivasan , Michael Ellerman , Nicholas Piggin , "Christophe Leroy (CS GROUP)" , Vasily Gorbik , Alexander Gordeev , Christian Borntraeger , Sven Schnelle , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , "maintainer:X86 ARCHITECTURE (32-BIT AND 64-BIT)" , "H. Peter Anvin" , Roberto Sassu , Dmitry Kasatkin , Eric Snowberg , Paul Moore , James Morris , "Serge E. Hallyn" , Jarkko Sakkinen , "moderated list:ARM64 PORT (AARCH64 ARCHITECTURE)" , open list , "open list:LINUX FOR POWERPC (32-BIT AND 64-BIT)" , "open list:S390 ARCHITECTURE" , "open list:EXTENSIBLE FIRMWARE INTERFACE (EFI)" , "open list:SECURITY SUBSYSTEM" , "open list:KEYS/KEYRINGS_INTEGRITY" In-Reply-To: References: <20260115004328.194142-1-coxu@redhat.com> <20260115004328.194142-2-coxu@redhat.com> <8bfa859ed3a4f1cf0db0ab64d8c1c3b24684582a.camel@linux.ibm.com> <97b69bc79a5d9246f7a399510908c7b95b2e95e7.camel@linux.ibm.com> <1a0b6e5601a673a81f8823de0815f92b7afbeb60.camel@linux.ibm.com> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Date: Tue, 24 Feb 2026 19:03:10 -0500 X-Mailing-List: linuxppc-dev@lists.ozlabs.org List-Id: List-Help: List-Owner: List-Post: List-Archive: , List-Subscribe: , , List-Unsubscribe: Precedence: list MIME-Version: 1.0 User-Agent: Evolution 3.56.2 (3.56.2-2.fc42) X-TM-AS-GCONF: 00 X-Proofpoint-Reinject: loops=2 maxloops=12 X-Proofpoint-ORIG-GUID: KmeUE4GQkjFCEA-onCkjAzUZBg2oc_Jk X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMjI0MDIwOSBTYWx0ZWRfX2xjh5sVgzhOS dnNMnaiYXxvEopWHavbqXkdT3qDid/FcKrZW6PmQdfwrcST/ZX7r1DIOCK79NPeBkmvn5ZHnYe9 iQCAUuGXNwIfntSmXBmb3sUwGlIdjaEKqZi1yYK+izhn6dUmiu/Nzuts6JG8Ag64IbvlsCzY9HR y1IRHwNmX0lY22905adj132keU3lKlbxSTaMIzXpdbD2idW7uvTZCuaRnWcSmyCenN1pvMDPDtz Ojr2imkhf9l9gWYtYrhl9C6I4J8BD8+fWsWgo8o8r/qtjNfpI8oxVuSL/ZlJTwW4+zm6hRkbkoN 4lqBW+WzVRY5+AOS30Msdg/NZ8hJlFIKGLqUHVrs0oDlu2icF3c2sOI3QWj0LDoJJ5HzB/Elg74 cnpm/637Zl1QbABBe956sXpIE+1HpOurd+ceDGYdkaBpuRjH9KncE0ga2Ag7Qpm+1XRIU3zjk+0 9ddSy/sJJwN86SA5NEA== X-Authority-Analysis: v=2.4 cv=R7wO2NRX c=1 sm=1 tr=0 ts=699e3c44 cx=c_pps a=3Bg1Hr4SwmMryq2xdFQyZA==:117 a=3Bg1Hr4SwmMryq2xdFQyZA==:17 a=IkcTkHD0fZMA:10 a=HzLeVaNsDn8A:10 a=VkNPw1HP01LnGYTKEx00:22 a=Mpw57Om8IfrbqaoTuvik:22 a=GgsMoib0sEa3-_RKJdDe:22 a=VwQbUJbxAAAA:8 a=20KFwNOVAAAA:8 a=VnNF1IyMAAAA:8 a=qGODes0vNXlHMsmaWvgA:9 a=QEXdDO2ut3YA:10 X-Proofpoint-GUID: 2x_WgBn-lXEWRE-KKGAySI2MMRU7Qajr X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1121,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-02-24_03,2026-02-23_03,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 clxscore=1015 impostorscore=0 phishscore=0 spamscore=0 suspectscore=0 malwarescore=0 bulkscore=0 adultscore=0 lowpriorityscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2601150000 definitions=main-2602240209 On Wed, 2026-01-21 at 17:25 +0100, Ard Biesheuvel wrote: > On Wed, 21 Jan 2026 at 16:41, Mimi Zohar wrote: > >=20 > > On Mon, 2026-01-19 at 12:04 +0800, Coiby Xu wrote: > >=20 > > > diff --git a/security/integrity/ima/Kconfig b/security/integrity/ima/= Kconfig > > > index 976e75f9b9ba..5dce572192d6 100644 > > > --- a/security/integrity/ima/Kconfig > > > +++ b/security/integrity/ima/Kconfig > > > @@ -311,6 +311,7 @@ config IMA_QUEUE_EARLY_BOOT_KEYS > > > config IMA_SECURE_AND_OR_TRUSTED_BOOT > > > bool > > > depends on IMA_ARCH_POLICY > > > + depends on INTEGRITY_SECURE_BOOT > > >=20 > > >=20 > > > Another idea is make a tree-wide arch_get_secureboot i.e. to move > > > current arch_ima_get_secureboot code to arch-specific secure boot > > > implementation. By this way, there will no need for a new Kconfig opt= ion > > > INTEGRITY_SECURE_BOOT. But I'm not sure if there is any unforeseen > > > concern. > >=20 > > Originally basing IMA policy on the secure boot mode was an exception. = As long > > as making it public isn't an issue any longer, this sounds to me. Ard,= Dave, do > > you have any issues with replacing arch_ima_get_secureboot() with > > arch_get_secureboot()? >=20 > I don't see an issue with that. If there is a legitimate need to > determine this even if IMA is not enabled, then this makes sense. Ard, Dave - FYI, Coiby posted v3 of this patch set[1], which is queued in the next- integrity-testing branch[2]. [1] https://lore.kernel.org/linux-integrity/20260213012851.2532722-1-coxu@redha= t.com/ [2] https://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity.g= it/ Mimi