CVE-2026-97522
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.
Affected versions
Linux kernel versions
6.6
and later are affected. Fixed in
6.6.158,
6.12.111,
6.18.53,
7.2.7,
7.3-rc4
and their respective stable series.
References
5 totalFrequently asked questions
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What is CVE-2026-97522?
CVE-2026-97522 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 6.6 onward and has been patched in 6.6.158, 6.12.111, 6.18.53 and others. CVE-2026-97522 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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Is there a patch available for CVE-2026-97522?
Yes. CVE-2026-97522 has been patched. Fixed versions include 6.6.158, 6.12.111, 6.18.53 and others. If you are running Linux kernel 6.6 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2026-97522 actively exploited?
No. CVE-2026-97522 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.