Hello:
This patch was applied to riscv/linux.git (fixes) by Andrew Morton akpm@linux-foundation.org:
On Tue, 1 Jul 2025 22:31:00 +0800 you wrote:
From: Lance Yang lance.yang@linux.dev
As pointed out by David[1], the batched unmap logic in try_to_unmap_one() may read past the end of a PTE table when a large folio's PTE mappings are not fully contained within a single page table.
While this scenario might be rare, an issue triggerable from userspace must be fixed regardless of its likelihood. This patch fixes the out-of-bounds access by refactoring the logic into a new helper, folio_unmap_pte_batch().
[...]
Here is the summary with links: - [v4,1/1] mm/rmap: fix potential out-of-bounds page table access during batched unmap https://git.kernel.org/riscv/c/ddd05742b45b
You are awesome, thank you!