On Fri, Sep 08, 2023 at 09:59:40PM +0200, Philipp Stanner wrote:
> +static inline void *memdup_array_user(const void __user *src, size_t n, size_t size)
> +{
> + size_t nbytes;
> +
> + if (unlikely(check_mul_overflow(n, size, &nbytes)))
> + return ERR_PTR(-EOVERFLOW);
No need for an unlikely() because check_mul_overflow() already has one
inside. I feel like -ENOMEM is more traditional but I doubt anyone/userspace
cares.
> +
> + return memdup_user(src, nbytes);
> +}
regards,
dan carpenter
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