PT-2025-49067 · Linux+4 · Linux Kernel+4
Published
2025-10-21
·
Updated
2026-05-22
·
CVE-2025-40240
CVSS v2.0
7.1
High
| Vector | AV:N/AC:M/Au:N/C:N/I:N/A:C |
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
A flaw exists in the Linux kernel related to the Socket Communication Transport Protocol (SCTP). Specifically, a potential NULL dereference can occur when a chunk data buffer is missing. The issue arises from dereferencing the
chunk->skb pointer in a block of code where it is expected to be NULL. The fix involves checking for a frag list before replacing chunk->skb, ensuring that chunk->skb is not NULL under certain conditions.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
NULL Pointer Dereference
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Weakness Enumeration
Related Identifiers
Affected Products
Debian
Linuxmint
Linux Kernel
Rocky Linux
Ubuntu