CVE-2025-38432 Information

Jul 26, 2025 cve

Description

In the Linux kernel the following vulnerability has been resolved:

net: netpoll: Initialize UDP checksum field before checksumming

commit f1fce08e63fe ( etpoll: Eliminate redundant assignment) removed the initialization of the UDP checksum which was wrong and broke netpoll IPv6 transmission due to bad checksumming.

udph->check needs to be set before calling csum_ipv6_magic().

Reference

https://git.kernel.org/stable/c/353016ec159f939a380ff6746476a779367ba9a3 https://git.kernel.org/stable/c/f5990207026987a353d5a95204c4d9cb725637fd

CNNVD-202507-3262 (Published: 2025-07-25)

Share on: