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CVE-2026-98115: Linux

Severity

8.8 (HIGH)

Vendor

LINUX

Affected versions

76e98a158b207771a6c9a0de0a60522a446a3447 through before a7e6df0bb92642bee4431b2b85c69ada1e463b21; 76e98a158b207771a6c9a0

Patch status

Patched

Published

2026-09-25T11:17:42.667

Modified

2026-09-25T15:18:06.270

Why it matters

High-severity vulnerability requiring prioritized review.

Recommended admin actions

• Review and patch based on exposure, asset criticality, and business impact.
• Compare installed versions against the affected version range in the advisory.

Technical summary

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.

View the official NVD record for CVE-2026-98115

CVE data is sourced from NVD/CNA records and optional enrichment. Validate against the vendor advisory before taking production action.