cvedb.io
CVE-2025-40240
HIGH · CVSS 7.5
EPSS exploitation probability: 0%
Published 2025-12-04T16:16:17.100 · Last modified 2026-07-30T06:24:19.080

Summary

In the Linux kernel, the following vulnerability has been resolved: sctp: avoid NULL dereference when chunk data buffer is missing chunk->skb pointer is dereferenced in the if-block where it's supposed to be NULL only. chunk->skb can only be NULL if chunk->head_skb is not. Check for frag_list instead and do it just before replacing chunk->skb. We're sure that otherwise chunk->skb is non-NULL because of outer if() condition.

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.