Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: ksmbd: safely drain sessions during logoff SMB3 multichannel allows requests for one session to run on multiple connections. Wait for all channels bound to a session before freeing shared session objects. A deferred byte-range lock remains counted as a running request and only wakes when its file closes. Wake blocked locks during the drain without unpublishing or modifying their file objects. Synchronous CANCEL requests must invoke their cancellation callback to wake pending operations, while CHANGE_NOTIFY completion remains specific to the asynchronous path. Serialize session teardown with channel registration and previous-session cleanup, and use atomic work-state transitions so LOGOFF, CANCEL, and connection teardown invoke cancellation callbacks only once.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 6.6.48, < 6.7 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/a7e6df0bb92642bee4431b2b85c69ada1e463b21Patch
- https://git.kernel.org/stable/c/d12168084c8c1b6d883c8eca5853929ac5136a9ePatch
FAQ
What is CVE-2026-98115?
CVE-2026-98115 is a vulnerability with a CVSS score of 8.8 (HIGH). In the Linux kernel, the following vulnerability has been resolved: ksmbd: safely drain sessions during logoff SMB3 multichannel allows requests for one session to run on multiple connections. Wait ...
How severe is CVE-2026-98115?
CVE-2026-98115 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-98115?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.