ksmbd: scope session state changes to bound connections
Key facts
- Attack vector
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- Privileges required
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- User interaction
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- Attack complexity
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- Impact type
- —
- Confidentiality · integrity · availability
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- Fix status
- Fixed
No CVSS vector from any source. Fix status from CNA.
Summary
In the Linux kernel, the following vulnerability has been resolved: ksmbd: scope session state changes to bound connections ksmbd_all_conn_set_status() treats every connection whose transient binding flag is set as belonging to the target SessionId. A logoff or session replacement can consequently move an unrelated connection to NEED_RECONNECT or NEED_SETUP. Pass the target session itself and select connections using either the connection-local session xarray or the session's permanent channel list. Use the same association test while waiting for requests to drain. Serialize session-wide status changes under request_lock and do not overwrite EXITING or RELEASING. Protect the shutdown transition with the same lock so a concurrent session update cannot revive a closing connection.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
Remediation
- Fix · CNA Linux (Linux) Fixed in 6.6.160, 6.12.114, 6.18.57, 7.2.6, 7.3
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
Not affected: 7 products
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
- Red Hat OpenShift Container Platform 4
- Red Hat OpenShift Container Platform 5
Timeline
- 2026-10-02 Threatist record created from CVE-2026-90154
- 2026-10-03 Alias added: GHSA-c8qh-mfc7-v6c7
- 2026-10-13 Affected versions changed · Red Hat
- 2026-10-13 CVSS score added · Red Hat
- 2026-10-16 Fix available: Linux/Linux@1ff0e41afbe73240a7d7b96d4e8e86d0aaf0fe0b, Linux/[email protected] · CNA
- 2026-10-16 1 new reference · CNA
- 2026-10-19 Fix available: Linux/[email protected] · CNA
- 2026-10-21 Fix available: Linux/Linux@3d66f3ec3c69fa242939a9f9e6815df33390b1bb, Linux/Linux@3deefd5fb1368e2577144b0961b1a5df26b587d1, Linux/[email protected] +1 · CNA
- 2026-10-21 2 new references · CNA
- 2026-11-06 Affected versions changed · Red Hat
References
Other 5
- https://git.kernel.org/stable/c/3deefd5fb1368e2577144b0961b1a5df26b587d1
- https://git.kernel.org/stable/c/3d66f3ec3c69fa242939a9f9e6815df33390b1bb
- https://git.kernel.org/stable/c/1ff0e41afbe73240a7d7b96d4e8e86d0aaf0fe0b
- https://git.kernel.org/stable/c/0875872718b98e8530fbc634e5aa7dbd3253b80d
- https://git.kernel.org/stable/c/c50e628122aed077695669e25b842e778511a43d
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Sources
- CVE-2026-90154 · CVE Program
- CVE-2026-90154 · NVD
- FIRST EPSS
- GHSA-c8qh-mfc7-v6c7 · GitHub Advisory Database · CC BY 4.0
- CVE-2026-90154 · Red Hat security data · CC BY 4.0
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