CVE-2025-38432

Published: Jul 25, 2025

Modified: May 11, 2026

PUBLISHED

Description

In the Linux kernel, the following vulnerability has been resolved: net: netpoll: Initialize UDP checksum field before checksumming commit f1fce08e63fe ("netpoll: 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().

Vendor	Product	Versions
Linux	Linux	affected `f1fce08e63fe1a2a8b8106b93b7244a39830edae - < 353016ec159f939a380ff6746476a779367ba9a3` affected `f1fce08e63fe1a2a8b8106b93b7244a39830edae - < f5990207026987a353d5a95204c4d9cb725637fd`
Linux	Linux	affected `6.15` unaffected `0 - < 6.15` unaffected `6.15.5 - <= 6.15.` unaffected `6.16 - <= `

References

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

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

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CVE-2025-38432

Description

Affected Products

References