On Tue, Sep 19, 2023 at 07:21:56PM +, Azeem Shaikh wrote:
> strlcpy() reads the entire source buffer first and returns the size of
> the source string, not the destination string, which can be accidentally
> misused [1].
>
> The copy_to_user() call uses @len returned from strlcpy() directly
>
On Tue, Sep 19, 2023 at 12:22 PM Azeem Shaikh wrote:
>
> strlcpy() reads the entire source buffer first and returns the size of
> the source string, not the destination string, which can be accidentally
> misused [1].
>
> The copy_to_user() call uses @len returned from strlcpy() directly
> without
strlcpy() reads the entire source buffer first and returns the size of
the source string, not the destination string, which can be accidentally
misused [1].
The copy_to_user() call uses @len returned from strlcpy() directly
without checking its value. This could potentially lead to read
overflow.
