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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().

PUBLISHED Reserved 2025-04-16 | Published 2025-07-25 | Updated 2025-07-28 | Assigner Linux

Product status

Default status
unaffected

f1fce08e63fe1a2a8b8106b93b7244a39830edae (git) before 353016ec159f939a380ff6746476a779367ba9a3
affected

f1fce08e63fe1a2a8b8106b93b7244a39830edae (git) before f5990207026987a353d5a95204c4d9cb725637fd
affected

Default status
affected

6.15
affected

Any version before 6.15
unaffected

6.15.5 (semver)
unaffected

6.16 (original_commit_for_fix)
unaffected

References

git.kernel.org/...c/353016ec159f939a380ff6746476a779367ba9a3

git.kernel.org/...c/f5990207026987a353d5a95204c4d9cb725637fd

cve.org (CVE-2025-38432)

nvd.nist.gov (CVE-2025-38432)

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