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| author | SeongJae Park <sj@kernel.org> | 2022-07-14 20:04:58 +0300 |
|---|---|---|
| committer | akpm <akpm@linux-foundation.org> | 2022-07-18 03:14:27 +0300 |
| commit | ec1658f0f90c5b855ad590930bf057514581521d (patch) | |
| tree | eae277a5094c0109ef29fee18d7181f5b9626add /mm/damon/lru_sort.c | |
| parent | 4f2930c6718afbb6c5904cda6f6781a70c52a042 (diff) | |
| download | linux-ec1658f0f90c5b855ad590930bf057514581521d.tar.xz | |
mm/damon/lru_sort: fix potential memory leak in damon_lru_sort_init()
damon_lru_sort_init() returns an error when damon_select_ops() fails
without freeing 'ctx' which allocated before. This commit fixes the
potential memory leak by freeing 'ctx' under the situation.
Link: https://lkml.kernel.org/r/20220714170458.49727-1-sj@kernel.org
Fixes: 40e983cca927 ("mm/damon: introduce DAMON-based LRU-lists Sorting")
Signed-off-by: SeongJae Park <sj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm/damon/lru_sort.c')
| -rw-r--r-- | mm/damon/lru_sort.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/mm/damon/lru_sort.c b/mm/damon/lru_sort.c index c276736a071c..9de6f00a71c5 100644 --- a/mm/damon/lru_sort.c +++ b/mm/damon/lru_sort.c @@ -524,8 +524,10 @@ static int __init damon_lru_sort_init(void) if (!ctx) return -ENOMEM; - if (damon_select_ops(ctx, DAMON_OPS_PADDR)) + if (damon_select_ops(ctx, DAMON_OPS_PADDR)) { + damon_destroy_ctx(ctx); return -EINVAL; + } ctx->callback.after_wmarks_check = damon_lru_sort_after_wmarks_check; ctx->callback.after_aggregation = damon_lru_sort_after_aggregation; |