CVE-2026-97522
mptcp: fix bad accounting in __mptcp_subflow_push_pending()
Description
In the Linux kernel, the following vulnerability has been resolved: mptcp: fix bad accounting in __mptcp_subflow_push_pending() If __subflow_push_pending() errors out we should avoid updating the copied byte counters, to avoid mismatch push call later on.
INFO
Published Date :
Sept. 25, 2026, 11:17 a.m.
Last Modified :
Sept. 25, 2026, 11:17 a.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Solution
- Apply the MPTCP patch to __mptcp_subflow_push_pending().
- Verify byte counter accuracy after applying the fix.
- Ensure proper handling of push call outcomes.
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-2026-97522.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-97522 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-2026-97522
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).
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The following list is the news that have been mention
CVE-2026-97522 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-97522 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
Sep. 25, 2026
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: mptcp: fix bad accounting in __mptcp_subflow_push_pending() If __subflow_push_pending() errors out we should avoid updating the copied byte counters, to avoid mismatch push call later on. Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/97xxx/CVE-2026-97522.json">CVE-2026-97522</a> Added Reference https://git.kernel.org/stable/c/9781fa35d9f7a87a83115acd3a88bc9ce35b5407 Added Reference https://git.kernel.org/stable/c/a0a64525f3414268ed4b1945a1dc690aa974dd4f Added Reference https://git.kernel.org/stable/c/dc054821e639a2e14f1419436612db70b6af45fc Added Reference https://git.kernel.org/stable/c/f3ef03357396d4b147d8e76c75fb612c2f264ffc