CVE-2024-57802 is a medium severity vulnerability in the Linux kernel's netrom module where the buffer length is not checked before accessing it. This leads to an uninitialized value read in the ax25cmp function when sending raw messages via the ieee802154 implementation. The root cause is that nr_route_frame does not validate the buffer size before use, potentially causing a use of uninitialized memory. The issue was identified by the Linux Verification Center using Syzkaller. The vulnerability impacts kernel versions prior to the fix, but no specific affected versions are provided.