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| author | Anastasia Belova <abelova@astralinux.ru> | 2024-12-03 11:42:31 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-02-17 09:40:19 +0100 |
| commit | 118c66164fbee6658b667e161a42a4e7dcabf7bf (patch) | |
| tree | 3c64d50a2c22b29a6f273261da3c80ab6fa8436c /drivers/clk | |
| parent | ebe1322167c1818af4181b2d80e814c840adac78 (diff) | |
| download | linux-118c66164fbee6658b667e161a42a4e7dcabf7bf.tar.gz linux-118c66164fbee6658b667e161a42a4e7dcabf7bf.tar.bz2 linux-118c66164fbee6658b667e161a42a4e7dcabf7bf.zip | |
clk: qcom: clk-rpmh: prevent integer overflow in recalc_rate
commit 89aa5925d201b90a48416784831916ca203658f9 upstream.
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>
Link: https://lore.kernel.org/r/20241203084231.6001-1-abelova@astralinux.ru
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/clk')
| -rw-r--r-- | drivers/clk/qcom/clk-rpmh.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/clk/qcom/clk-rpmh.c b/drivers/clk/qcom/clk-rpmh.c index a8b5f4d8a7b9..edbae2a88afc 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 = { |