CVE-2025-38432
N/A
N/A
Summary
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().
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | f1fce08e63fe1a2a8b8106b93b7244a39830edae < 353016ec159f939a380ff6746476a779367ba9a3 | affected |
| Linux | Linux | f1fce08e63fe1a2a8b8106b93b7244a39830edae < f5990207026987a353d5a95204c4d9cb725637fd | affected |
| Linux | Linux | 6.15 | affected |
| Linux | Linux | 0 < 6.15 | unaffected |
| Linux | Linux | 6.15.5 <= 6.15.* | unaffected |
| Linux | Linux | 6.16 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/353016ec159f939a380ff6746476a779367ba9a3
- https://git.kernel.org/stable/c/f5990207026987a353d5a95204c4d9cb725637fd
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