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iio: accel: sca3000: memory corruption in sca3000_read_first_n_hw_rb()

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"num_read" is in byte units but we are write u16s so we end up write
twice as much as intended.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
This commit is contained in:
Dan Carpenter 2015-08-08 22:16:42 +03:00 committed by Jonathan Cameron
parent 61fd563091
commit eda7d0f38a
1 changed files with 1 additions and 1 deletions
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2
drivers/staging/iio/accel/sca3000_ring.c
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@ -116,7 +116,7 @@ static int sca3000_read_first_n_hw_rb(struct iio_buffer *r,
if (ret) if (ret)
goto error_ret; goto error_ret;
for (i = 0; i < num_read; i++) for (i = 0; i < num_read / sizeof(u16); i++)
*(((u16 *)rx) + i) = be16_to_cpup((__be16 *)rx + i); *(((u16 *)rx) + i) = be16_to_cpup((__be16 *)rx + i);
if (copy_to_user(buf, rx, num_read)) if (copy_to_user(buf, rx, num_read))