| Message ID | 20241203084231.6001-1-abelova@astralinux.ru (mailing list archive) |
|---|---|
| State | Under Review |
| Headers | show |
| Series | clk: qcom: clk-rpmh: prevent integer overflow in recalc_rate | expand |
diff --git a/drivers/clk/qcom/clk-rpmh.c b/drivers/clk/qcom/clk-rpmh.c index eefc322ce367..e6c33010cfbf 100644 --- a/drivers/clk/qcom/clk-rpmh.c +++ b/drivers/clk/qcom/clk-rpmh.c @@ -329,7 +329,7 @@ static unsigned long clk_rpmh_bcm_recalc_rate(struct clk_hw *hw, { struct clk_rpmh *c = to_clk_rpmh(hw); - return c->aggr_state * c->unit; + return (unsigned long)c->aggr_state * c->unit; } static const struct clk_ops clk_rpmh_bcm_ops = {
aggr_state and unit fields are u32. The result of their multiplication may not fit in this type. Add explicit casting to prevent overflow. Found by Linux Verification Center (linuxtesting.org) with SVACE. Fixes: 04053f4d23a4 ("clk: qcom: clk-rpmh: Add IPA clock support") Cc: stable@vger.kernel.org # 5.4+ Signed-off-by: Anastasia Belova <abelova@astralinux.ru> --- drivers/clk/qcom/clk-rpmh.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)