On Sun, Mar 12, 2017 at 02:10:01AM +0530, simran singhal wrote:
> Replace strcpy with strlcpy as strcpy does not check for buffer
> overflow.
> This is found using Flawfinder.
>
> Signed-off-by: simran singhal <singhalsimran0@xxxxxxxxx>
> ---
> drivers/staging/android/ashmem.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/staging/android/ashmem.c b/drivers/staging/android/ashmem.c
> index 7cbad0d..eb2f4ef 100644
> --- a/drivers/staging/android/ashmem.c
> +++ b/drivers/staging/android/ashmem.c
> @@ -548,7 +548,8 @@ static int set_name(struct ashmem_area *asma, void __user *name)
> if (unlikely(asma->file))
> ret = -EINVAL;
> else
> - strcpy(asma->name + ASHMEM_NAME_PREFIX_LEN, local_name);
> + strlcpy(asma->name + ASHMEM_NAME_PREFIX_LEN, local_name,
> + sizeof(asma->name + ASHMEM_NAME_PREFIX_LEN));
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
This isn't right.
Also please do some analysis to see if it's a real bug or a false
positive. It is a false positive in this case.
regards,
dan carpenter
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