This patch fixes a possible overflow in module hdm-dim2.
Signed-off-by: Christian Gromm <christian.gromm@xxxxxxxxxxxxx>
---
drivers/staging/most/hdm-dim2/dim2_hdm.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/drivers/staging/most/hdm-dim2/dim2_hdm.c b/drivers/staging/most/hdm-dim2/dim2_hdm.c
index dda02a6..855bcd2 100644
--- a/drivers/staging/most/hdm-dim2/dim2_hdm.c
+++ b/drivers/staging/most/hdm-dim2/dim2_hdm.c
@@ -381,11 +381,12 @@ static void service_done_flag(struct dim2_hdm *dev, int ch_idx)
if (hdm_ch->data_type == MOST_CH_CONTROL ||
hdm_ch->data_type == MOST_CH_ASYNC) {
- u16 const data_size =
- (u16)data[0] * 256 + data[1] + 2;
+ u32 data_size =
+ (u32)data[0] * 256 + data[1] + 2;
mbo->processed_length =
- min(data_size, mbo->buffer_length);
+ min_t(u32, data_size,
+ mbo->buffer_length);
} else {
mbo->processed_length = mbo->buffer_length;
}
--
1.7.9.5
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