CVE-2025-37820

In the Linux kernel, the following vulnerability has been resolved:

xen-netfront: handle NULL returned by xdp_convert_buff_to_frame()

The function xdp_convert_buff_to_frame() may return NULL if it fails

to correctly convert the XDP buffer into an XDP frame due to memory

constraints, internal errors, or invalid data. Failing to check for NULL

may lead to a NULL pointer dereference if the result is used later in

processing, potentially causing crashes, data corruption, or undefined

behavior.

On XDP redirect failure, the associated page must be released explicitly

if it was previously retained via get_page(). Failing to do so may result

in a memory leak, as the pages reference count is not decremented.