[Patch v3 0/3] maple_tree: Fix the replacement of a root leaf node

[Andrew Morton]

On Wed, 11 Jun 2025 02:54:36 +0000 Wei Yang <richard.weiyang at gmail.com> wrote:

> On Tue, Jun 10, 2025 at 06:37:27PM -0700, Andrew Morton wrote:
> >On Wed, 11 Jun 2025 01:12:50 +0000 Wei Yang <richard.weiyang at gmail.com> wrote:
> >
> >> On destroy we should set each node dead. But current
> >> code miss this when the maple tree has only the root node.
> >> 
> >> The reason is mt_destroy_walk() leverage mte_destroy_descend() to set
> >> node dead, but this is skipped since the only root node is a leaf.
> >
> >Thanks.  You added cc:stable to two of the patches and that's great,
> >thanks for remembering.  But the changelogs didn't tell us why you made
> >this choice.
> >
> >So, as always, please always describe the userspace-visible impact of a
> >bug when fixing that bug!
> 
> Thanks for reminding.
> 
> Do you prefer to have a new version with the description in changelog?

No, that's fine - please just send it in reply to this email.