CVE-2025-40240

Dec. 4, 2025, 5:15 p.m.

None
No Score

Description

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.

Product(s) Impacted

Vendor Product Versions
Linux
  • Linux Kernel
  • *

Weaknesses

Common security weaknesses mapped to this vulnerability.

*CPE(s)

Affected systems and software identified for this CVE.

Type Vendor Product Version Update Edition Language Software Edition Target Software Target Hardware Other Information
o linux linux_kernel / / / / / / / /

References

https://git.kernel.org/stable/c/03e80a4b04ef1fb2c61dd63216ab8d3a5dcb196f
https://git.kernel.org/stable/c/08165c296597075763130919f2aae59b5822f016
https://git.kernel.org/stable/c/441f0647f7673e0e64d4910ef61a5fb8f16bfb82
https://git.kernel.org/stable/c/4f6da435fb5d8a21cbf8cae5ca5a2ba0e1012b71
https://git.kernel.org/stable/c/61cda2777b07d27459f5cac5a047c3edf9c8a1a9
https://git.kernel.org/stable/c/7a832b0f99be19df608cb75c023f8027b1789bd1
https://git.kernel.org/stable/c/89b465b54227c245ddc7cc9ed822231af21123ef
https://git.kernel.org/stable/c/cb9055ba30306ede4ad920002233d0659982f1cb

Tags

416baaa9-dc9f-4396-8d5f-8c081fb06d67
2025-12-04
CVE-2025-40240

Timeline

Published: Dec. 4, 2025, 4:16 p.m.
Last Modified: Dec. 4, 2025, 5:15 p.m.

Status : Awaiting Analysis

CVE has been marked for Analysis. Normally once in this state the CVE will be analyzed by NVD staff within 24 hours.

More info

Source

416baaa9-dc9f-4396-8d5f-8c081fb06d67

*Disclaimer: Some vulnerabilities do not have an associated CPE. To enhance the data, we use AI to infer CPEs based on CVE details. This is an automated process and might not always be accurate.