From: Oleg Nesterov <oleg@redhat.com>
To: Alistair Popple <apopple@nvidia.com>,
Andrew Morton <akpm@linux-foundation.org>,
Byungchul Park <byungchul@sk.com>,
David Hildenbrand <david@kernel.org>,
Gregory Price <gourry@gourry.net>,
Joshua Hahn <joshua.hahnjy@gmail.com>,
Matthew Brost <matthew.brost@intel.com>,
Rakie Kim <rakie.kim@sk.com>,
Ying Huang <ying.huang@linux.alibaba.com>,
Zi Yan <ziy@nvidia.com>
Cc: Jann Horn <jannh@google.com>, Kees Cook <kees@kernel.org>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: [PATCH 0/4] mm/mempolicy: kernel_migrate_pages: fix race between security checks and suid exec
Date: Sun, 24 May 2026 18:57:15 +0200 [thread overview]
Message-ID: <ahMt6xyUNnacZU8-@redhat.com> (raw)
Hello,
Sorry, I have no idea how to test these changes. Please review.
Hopefully sashiko.dev will take a look too ;)
find_mm_struct() has the same problem, will send a patch tomorrow.
Unless you tell me this race doesn't need a fix.
Oleg.
---
mm/mempolicy.c | 53 +++++++++++++++++++++++++----------------------------
1 file changed, 25 insertions(+), 28 deletions(-)
next reply other threads:[~2026-05-24 16:57 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-24 16:57 Oleg Nesterov [this message]
2026-05-24 16:57 ` [PATCH 1/4] mm/mempolicy: kernel_migrate_pages: simplify the usage of put_task_struct() Oleg Nesterov
2026-05-25 2:18 ` Gregory Price
2026-05-25 2:20 ` Gregory Price
2026-05-25 8:27 ` Oleg Nesterov
2026-05-26 15:22 ` Gregory Price
2026-05-24 16:58 ` [PATCH 2/4] mm/mempolicy: kernel_migrate_pages: use find_get_task_by_vpid() Oleg Nesterov
2026-05-24 16:58 ` [PATCH 3/4] mm/mempolicy: kernel_migrate_pages: check ptrace_may_access() after nodes_and() Oleg Nesterov
2026-05-24 16:58 ` [PATCH 4/4] mm/mempolicy: kernel_migrate_pages: fix race between security checks and suid exec Oleg Nesterov
2026-05-24 19:29 ` [PATCH 0/4] " Oleg Nesterov
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