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Tue, 15 Jul 2025 20:03:04 +0000 (UTC) From: Dan Moulding To: rppt@kernel.org Cc: dan@danm.net, linux-mm@kvack.org, peterz@infradead.org Subject: Re: WARNING: Found insecure W+X mapping in v6.16-rc6 (Bisected) Date: Tue, 15 Jul 2025 14:02:48 -0600 Message-ID: <20250715200248.6680-1-dan@danm.net> X-Mailer: git-send-email 2.49.1 In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Proofpoint-ORIG-GUID: aN3epJugeWzzLcExkly614yMWGcnnMik X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUwNzE1MDE4NSBTYWx0ZWRfX1IWmtoOf4djZ IMgcx7RYvO1Vc6/jGsswmA3rIZ3SS2O9jQiC7/B7nKous27S25BtuUsZ9HEqCDmC2DxMoV5yrEC Q0Pn4uSzQ6AsUMbr8QEO9lY5nz1jtnOz0HNp4FvmfpKyyZ8G+JMqt+/lPcTk0OZoWQSuV2Cl8+/ 1WAc7qEJUhJyr26x9GU5IkHb593IZfQXCURtHOhNFzjgBw+WIrKb4KQTtaDCNL1bMR8MvxiL8V+ yUo46d/wy6DJOZ9rG60O87vWCffTmFfoJGulPlnO22ELY6YKpZlkXsdqCvq+kw4xRXfdHacXo= X-Proofpoint-GUID: aN3epJugeWzzLcExkly614yMWGcnnMik X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1099,Hydra:6.1.9,FMLib:17.12.80.40 definitions=2025-07-15_04,2025-07-15_02,2025-03-28_01 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 spamscore=0 suspectscore=0 clxscore=1030 malwarescore=0 mlxscore=0 mlxlogscore=375 phishscore=0 adultscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.22.0-2506270000 definitions=main-2507150185 X-Rspam-User: X-Rspamd-Server: rspam05 X-Rspamd-Queue-Id: D97F81C0013 X-Stat-Signature: 4bshwbfu4bg1dmszwe4hcw9g81dycwys X-HE-Tag: 1752609787-787682 X-HE-Meta: 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 CRkoih/B ICwA6aLs6nacRYOJlxD8TTTMZPxinxg8iL14UrXg++aNHd61cWqTi9BzmRUu8b2qXBPtynR17YKZQMGHyL6rpcfsBvaf/xAywodL5V8e+6QaTiHkG0rUt6Gb22cbClzbeB4gLu99zYrUyT0/q1Q01RYTLX43CNJCgTXYv X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: > Can you please try this patch: > > diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig > index 71019b3b54ea..f97e0a50e60a 100644 > --- a/arch/x86/Kconfig > +++ b/arch/x86/Kconfig > @@ -89,7 +89,7 @@ config X86 > select ARCH_HAS_DMA_OPS if GART_IOMMU || XEN > select ARCH_HAS_EARLY_DEBUG if KGDB > select ARCH_HAS_ELF_RANDOMIZE > - select ARCH_HAS_EXECMEM_ROX if X86_64 && STRICT_MODULE_RWX > + select ARCH_HAS_EXECMEM_ROX if X86_64 && (STRICT_KERNEL_RWX || STRICT_MODULE_RWX) > select ARCH_HAS_FAST_MULTIPLIER > select ARCH_HAS_FORTIFY_SOURCE > select ARCH_HAS_GCOV_PROFILE_ALL Yep, this patch works. I applied it directly to v6.16-rc6 and the warning goes away. Thanks! -- Dan