From: Pu Lehui <pulehui@huaweicloud.com>
To: mhiramat@kernel.org, oleg@redhat.com, peterz@infradead.org,
akpm@linux-foundation.org, Liam.Howlett@oracle.com,
lorenzo.stoakes@oracle.com, vbabka@suse.cz, jannh@google.com,
pfalcato@suse.de
Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, pulehui@huawei.com
Subject: [RFC PATCH v2 0/2] Fix uprobe anon page be overwritten during mremap
Date: Tue, 27 May 2025 13:23:49 +0000 [thread overview]
Message-ID: <20250527132351.2050820-1-pulehui@huaweicloud.com> (raw)
From: Pu Lehui <pulehui@huawei.com>
patch 1: the mainly fix for uprobe anon page be overwritten issue.
patch 2: WARN_ON_ONCE for new_pte not NULL during move_ptes.
RFC v2:
- skip uprobe_mmap on expanded vma.
- add skip_vma_uprobe field to struct vma_prepare and
vma_merge_struct. (Lorenzo)
- add WARN_ON_ONCE when new_pte is not NULL. (Oleg)
- Corrected some of the comments.
RFC v1:
https://lore.kernel.org/all/20250521092503.3116340-1-pulehui@huaweicloud.com/
Pu Lehui (2):
mm/mremap: Fix uprobe anon page be overwritten when expanding vma
during mremap
mm/mremap: Expose abnormal new_pte during move_ptes
mm/mremap.c | 2 ++
mm/vma.c | 7 ++++++-
mm/vma.h | 7 +++++++
3 files changed, 15 insertions(+), 1 deletion(-)
--
2.34.1
next reply other threads:[~2025-05-27 13:21 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-05-27 13:23 Pu Lehui [this message]
2025-05-27 13:23 ` [RFC PATCH v2 1/2] mm/mremap: Fix uprobe anon page be overwritten when expanding vma " Pu Lehui
2025-05-27 13:34 ` Lorenzo Stoakes
2025-05-27 15:17 ` Oleg Nesterov
2025-05-27 15:27 ` Lorenzo Stoakes
2025-05-27 15:29 ` Lorenzo Stoakes
2025-05-27 16:29 ` Pu Lehui
2025-05-27 14:23 ` Oleg Nesterov
2025-05-27 16:32 ` Pu Lehui
2025-05-27 16:37 ` Lorenzo Stoakes
2025-05-27 16:52 ` Pu Lehui
2025-05-27 17:20 ` Oleg Nesterov
2025-05-29 15:09 ` Pu Lehui
2025-05-29 15:12 ` Lorenzo Stoakes
2025-05-27 15:30 ` Oleg Nesterov
2025-05-27 15:33 ` Lorenzo Stoakes
2025-05-27 15:52 ` Oleg Nesterov
2025-05-27 16:41 ` Pu Lehui
2025-05-27 16:35 ` Pu Lehui
2025-05-27 13:23 ` [RFC PATCH v2 2/2] mm/mremap: Expose abnormal new_pte during move_ptes Pu Lehui
2025-05-27 14:24 ` Oleg Nesterov
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