Incorrect calculation in Linux kernel - CVE-2026-97522
Published: September 28, 2026
Vulnerability identifier: #VU152680
CSH Severity: Low
CVSS v4: 2 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-97522
CWE-ID: CWE-682
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to cause incorrect byte accounting.
The vulnerability exists due to improper accounting in __mptcp_subflow_push_pending() when __subflow_push_pending() returns an error. A local user can trigger an error during a pending subflow push to cause incorrect byte accounting.
Affected software
Linux kernel
How to mitigate CVE-2026-97522
Install security update from vendor's repository.
Linux kernel - update to 7.0 rc3