CVE-2025-38432
Medium
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().
SeverityMedium
CVSS5.5
Exploit probability—
Product
Linux Kernel
PublishedJul 25, 2025
First seenJul 25, 2025
How to fix
Update
- linux linux_kernel6.15.5 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 6.15 ≤ v < 6.15.5, 6.16 | 6.15.5 |
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