Hi Andrew,
On 2024/12/16 14:10, Andrew Morton wrote:
On Sun, 15 Dec 2024 14:29:38 +0800 Qi Zheng <zhengqi.arch@xxxxxxxxxxxxx> wrote:
Acked-by: Yu Zhao <yuzhao@xxxxxxxxxx>
Thanks! Once the review of this patch series is completed, we can simply
drop "mm: pgtable: make ptlock be freed by RCU" from mm tree.
Can we drop it now and does the remainder of the series "synchronously
scan and reclaim empty user PTE pages v4" remain valid and useful?
The "mm: pgtable: make ptlock be freed by RCU" fixes the UAF issue [1]
reported by syzbot. If it is dropped now and this patch series is not
merged, the UAF issue will reappear.
[1].
https://lore.kernel.org/lkml/67548279.050a0220.a30f1.015b.GAE@xxxxxxxxxx/
Thanks,
Qi
