CVE-2025-38432
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-07-25

Last updated on: 2025-11-19

Assigner: kernel.org

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().
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Meta Information
Published
2025-07-25
Last Modified
2025-11-19
Generated
2026-05-07
AI Q&A
2025-07-25
EPSS Evaluated
2026-05-05
NVD
Affected Vendors & Products
Showing 4 associated CPEs
Vendor Product Version / Range
linux linux_kernel 6.16
linux linux_kernel 6.16
linux linux_kernel 6.16
linux linux_kernel From 5.15.160 (inc) to 5.16 (inc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-NVD-CWE-noinfo
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AI Powered Q&A
Can you explain this vulnerability to me?

This vulnerability in the Linux kernel involves the netpoll component where the UDP checksum field was not properly initialized before performing checksum calculations. Specifically, the initialization of the UDP checksum was removed incorrectly, causing bad checksumming in netpoll IPv6 transmissions. The UDP checksum field (udph->check) needs to be set before calling the checksum function csum_ipv6_magic().


How can this vulnerability impact me? :

This vulnerability can cause incorrect UDP checksum calculations in netpoll IPv6 transmissions, potentially leading to network communication failures or data corruption during these transmissions.


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