CVE-2025-40187
net/sctp: fix a null dereference in sctp_disposition sctp_sf_do_5_1D_ce()
Description
In the Linux kernel, the following vulnerability has been resolved: net/sctp: fix a null dereference in sctp_disposition sctp_sf_do_5_1D_ce() If new_asoc->peer.adaptation_ind=0 and sctp_ulpevent_make_authkey=0 and sctp_ulpevent_make_authkey() returns 0, then the variable ai_ev remains zero and the zero will be dereferenced in the sctp_ulpevent_free() function.
INFO
Published Date :
Nov. 12, 2025, 10:15 p.m.
Last Modified :
Nov. 12, 2025, 10:15 p.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Affected Products
The following products are affected by CVE-2025-40187
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
Solution
- Update the Linux kernel.
- Reboot the system to apply changes.
- Verify the kernel version.
- Monitor system stability.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2025-40187.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-40187 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-40187
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-40187 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2025-40187 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Nov. 12, 2025
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: net/sctp: fix a null dereference in sctp_disposition sctp_sf_do_5_1D_ce() If new_asoc->peer.adaptation_ind=0 and sctp_ulpevent_make_authkey=0 and sctp_ulpevent_make_authkey() returns 0, then the variable ai_ev remains zero and the zero will be dereferenced in the sctp_ulpevent_free() function. Added Reference https://git.kernel.org/stable/c/025419f4e216a3ae0d0cec622262e98e8078c447 Added Reference https://git.kernel.org/stable/c/1014b83778c8677f1d7a57c26dc728baa801ac62 Added Reference https://git.kernel.org/stable/c/2f3119686ef50319490ccaec81a575973da98815 Added Reference https://git.kernel.org/stable/c/7f702f85df0266ed7b5bab81ba50394c92f3c928 Added Reference https://git.kernel.org/stable/c/badbd79313e6591616c1b78e29a9b71efed7f035 Added Reference https://git.kernel.org/stable/c/c21f45cfa4a9526b34d76b397c9ef080668b6e73 Added Reference https://git.kernel.org/stable/c/d0e8f1445c19b1786759ba72a38267e1449bab7e Added Reference https://git.kernel.org/stable/c/dbceedc0213e75bf3e9f9f9e2f66b10699d004fe