diff --git a/mm/damon/core.c b/mm/damon/core.c index 7d49420ea26c..4f1425e56950 100644 --- a/mm/damon/core.c +++ b/mm/damon/core.c @@ -1332,6 +1332,19 @@ static void damos_set_filters_default_reject(struct damos *s) damos_filters_default_reject(&s->ops_filters); } +static bool damon_valid_probe_params(struct damon_ctx *ctx) +{ + unsigned long sample_interval; + + if (!damon_has_probe_weights(ctx)) + return true; + + sample_interval = ctx->attrs.sample_interval ? : 1; + if (ctx->attrs.aggr_interval / sample_interval > U8_MAX) + return false; + return true; +} + /* * damos_commit_dests() - Copy migration destinations from @src to @dst. * @dst: Destination structure to update. @@ -1736,6 +1749,9 @@ static int __damon_commit_ctx(struct damon_ctx *dst, struct damon_ctx *src) } } + if (!damon_valid_probe_params(src)) + return -EINVAL; + err = damon_commit_schemes(dst, src); if (err) return err;