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From 9f7065bd9c051d24c03fc48a4e44cb5a25382cc7 Mon Sep 17 00:00:00 2001
From: SeongJae Park <sj@kernel.org>
Date: Thu, 15 Feb 2024 15:36:41 -0800
Subject: [PATCH] mm/damon/core: initialize ->esz_bp from
damos_quota_init_priv()
damos_quota_init_priv() function should initialize all private fields of
struct damos_quota. However, it is not initializing ->esz_bp field.
This could result in use of uninitialized variable from
damon_feed_loop_next_input() function.
Note: not Cc-ing stable@ since every DAMON kernel API users are not
causing the issue.
Fixes: 9294a037c015 ("mm/damon/core: implement goal-oriented feedback-driven quota auto-tuning")
Signed-off-by: SeongJae Park <sj@kernel.org>
---
mm/damon/core.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/mm/damon/core.c b/mm/damon/core.c
index 6f4492d13798..37a19534a6f5 100644
--- a/mm/damon/core.c
+++ b/mm/damon/core.c
@@ -356,6 +356,7 @@ static struct damos_quota *damos_quota_init(struct damos_quota *quota)
quota->charged_from = 0;
quota->charge_target_from = NULL;
quota->charge_addr_from = 0;
+ quota->esz_bp = 0;
return quota;
}
--
2.39.2
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