lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
Open Source and information security mailing list archives
| ||
|
Date: Mon, 9 May 2022 21:04:04 -0700 From: Andrew Morton <akpm@...ux-foundation.org> To: Baolin Wang <baolin.wang@...ux.alibaba.com> Cc: mike.kravetz@...cle.com, catalin.marinas@....com, will@...nel.org, songmuchun@...edance.com, tsbogend@...ha.franken.de, James.Bottomley@...senPartnership.com, deller@....de, mpe@...erman.id.au, benh@...nel.crashing.org, paulus@...ba.org, hca@...ux.ibm.com, gor@...ux.ibm.com, agordeev@...ux.ibm.com, borntraeger@...ux.ibm.com, svens@...ux.ibm.com, ysato@...rs.osdn.me, dalias@...c.org, davem@...emloft.net, arnd@...db.de, linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org, linux-ia64@...r.kernel.org, linux-mips@...r.kernel.org, linux-parisc@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org, linux-s390@...r.kernel.org, linux-sh@...r.kernel.org, sparclinux@...r.kernel.org, linux-arch@...r.kernel.org, linux-mm@...ck.org Subject: Re: [PATCH v3 0/3] Fix CONT-PTE/PMD size hugetlb issue when unmapping or migrating On Tue, 10 May 2022 11:45:57 +0800 Baolin Wang <baolin.wang@...ux.alibaba.com> wrote: > Hi, > > Now migrating a hugetlb page or unmapping a poisoned hugetlb page, we'll > use ptep_clear_flush() and set_pte_at() to nuke the page table entry > and remap it, and this is incorrect for CONT-PTE or CONT-PMD size hugetlb > page, It would be helpful to describe why it's wrong. Something like "should use huge_ptep_clear_flush() and huge_ptep_clear_flush() for this purpose"? > which will cause potential data consistent issue. This patch set > will change to use hugetlb related APIs to fix this issue, please find > details in each patch. Thanks. Is a cc:stable needed here? And are we able to identify a target for a Fixes: tag?
Powered by blists - more mailing lists