Commit 70715371 authored by Enze Li's avatar Enze Li Committed by Andrew Morton
Browse files

mm/damon/core: fix potential memory leak by cleaning ops_filter in damon_destroy_scheme 

Currently, damon_destroy_scheme() only cleans up the filter list but
leaves ops_filter untouched, which could lead to memory leaks when a
scheme is destroyed.

This patch ensures both filter and ops_filter are properly freed in
damon_destroy_scheme(), preventing potential memory leaks.

Link: https://lkml.kernel.org/r/20251014084225.313313-1-lienze@kylinos.cn


Fixes: ab82e579 ("mm/damon/core: introduce damos->ops_filters")
Signed-off-by: default avatarEnze Li <lienze@kylinos.cn>
Reviewed-by: default avatarSeongJae Park <sj@kernel.org>
Tested-by: default avatarSeongJae Park <sj@kernel.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
parent cec944dd

mm/damon/core.c

+3 −0
Original line number Diff line number Diff line
@@ -452,6 +452,9 @@ void damon_destroy_scheme(struct damos *s) 
	damos_for_each_filter_safe(f, next, s)

		damos_destroy_filter(f);



	damos_for_each_ops_filter_safe(f, next, s)

		damos_destroy_filter(f);



	kfree(s->migrate_dests.node_id_arr);

	kfree(s->migrate_dests.weight_arr);

	damon_del_scheme(s);