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.

INFO

Published Date :

2025-12-04T15:31:29.715Z

Last Modified :

2025-12-04T15:31:29.715Z

Source :

Linux
AFFECTED PRODUCTS

The following products are affected by CVE-2025-40240 vulnerability.

Vendors Products
Linux
  • Linux Kernel
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2025-40240.

URL Resource
https://git.kernel.org/stable/c/03e80a4b04ef1fb2c61dd63216ab8d3a5dcb196f cve-icon cve-icon
https://git.kernel.org/stable/c/08165c296597075763130919f2aae59b5822f016 cve-icon cve-icon
https://git.kernel.org/stable/c/441f0647f7673e0e64d4910ef61a5fb8f16bfb82 cve-icon cve-icon
https://git.kernel.org/stable/c/4f6da435fb5d8a21cbf8cae5ca5a2ba0e1012b71 cve-icon cve-icon
https://git.kernel.org/stable/c/61cda2777b07d27459f5cac5a047c3edf9c8a1a9 cve-icon cve-icon
https://git.kernel.org/stable/c/7a832b0f99be19df608cb75c023f8027b1789bd1 cve-icon cve-icon
https://git.kernel.org/stable/c/89b465b54227c245ddc7cc9ed822231af21123ef cve-icon cve-icon
https://git.kernel.org/stable/c/cb9055ba30306ede4ad920002233d0659982f1cb cve-icon cve-icon
https://lore.kernel.org/linux-cve-announce/2025120403-CVE-2025-40240-745a@gregkh/T cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2025-40240 cve-icon
https://www.cve.org/CVERecord?id=CVE-2025-40240 cve-icon
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