CVE-2026-90154

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.

Package Linux Kernel
Published 2026-09-17
Last modified 2026-09-17
Patch available
Yes

Affected versions

Linux kernel versions 5.15 and later are affected. Fixed in 7.2.6, 7.3-rc1 and their respective stable series.

Affected from
≥ 5.15
Fixed in
✓ 7.2.6 7.2.x ✓ 7.3-rc1

References

2 total

Frequently asked questions

  • What is CVE-2026-90154?

    CVE-2026-90154 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 5.15 onward and has been patched in 7.2.6 and 7.3-rc1. CVE-2026-90154 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

  • Is there a patch available for CVE-2026-90154?

    Yes. CVE-2026-90154 has been patched. Fixed versions include 7.2.6 and 7.3-rc1. If you are running Linux kernel 5.15 or later up to the fix versions, apply the relevant patch for your kernel branch.

  • Is CVE-2026-90154 actively exploited?

    No. CVE-2026-90154 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

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