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CVE-2024-50251

MediumPublished

netfilter: nft_payload: sanitize offset and length before calling skb_checksum()

Published: Nov 9, 2024
Updated: May 12, 2026
Assigning CNA: Linux
Evidence observed: Aug 4, 2026

Primary CVSS

6.2/ 10Medium

nvd · CVSS 3.1

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS probability estimate

0.5%

Low · next 30 days

Percentile: 43.8%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

In the Linux kernel, the following vulnerability has been resolved: netfilter: nft_payload: sanitize offset and length before calling skb_checksum() If access to offset + length is larger than the skbuff length, then skb_checksum() triggers BUG_ON(). skb_checksum() internally subtracts the length parameter while iterating over skbuff, BUG_ON(len) at the end of it checks that the expected length to be included in the checksum calculation is fully consumed.

Sources

CVE-2024-50251-PoCPoC
Just a local Dos bug in Linux kernel

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