diff options
| author | SeongJae Park <sj@kernel.org> | 2026-04-26 10:36:12 -0700 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2026-05-13 17:40:00 -0700 |
| commit | d4e7b5c4cc353f154d5ab8bb2e1ce7714d77a6e9 (patch) | |
| tree | e0f151ccf954bd73a868ec83311d0d1046637944 | |
| parent | 63451de16e0a08be40f9ab5e7c5c8f5c79676fb1 (diff) | |
mm/damon/sysfs-schemes: call missing mem_cgroup_iter_break()
damon_sysfs_memcg_path_to_id() breaks mem_cgroup_iter() loop without
calling mem_cgroup_iter_break(). This leaks the cgroup reference. Fix
the issue by calling mem_cgroup_iter_break() before the break.
The issue was discovered [1] by Sashiko.
Link: https://lore.kernel.org/20260426173625.86521-1-sj@kernel.org
Link: https://lore.kernel.org/20260423004148.74722-1-sj@kernel.org [1]
Fixes: 29cbb9a13f05 ("mm/damon/sysfs-schemes: implement scheme filters")
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: <stable@vger.kernel.org> # 6.3.x
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
| -rw-r--r-- | mm/damon/sysfs-schemes.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/mm/damon/sysfs-schemes.c b/mm/damon/sysfs-schemes.c index 245d63808411..04746cbb3327 100644 --- a/mm/damon/sysfs-schemes.c +++ b/mm/damon/sysfs-schemes.c @@ -2594,6 +2594,7 @@ static int damon_sysfs_memcg_path_to_id(char *memcg_path, u64 *id) if (damon_sysfs_memcg_path_eq(memcg, path, memcg_path)) { *id = mem_cgroup_id(memcg); found = true; + mem_cgroup_iter_break(NULL, memcg); break; } } |