{"apiVersion":"1.0","identifier":"CVE-2026-99276","description":"In the Linux kernel, the following vulnerability has been resolved: ksmbd: defer connection scavenging while session locks are busy The expiration worker holds conn_list_lock for reading while checking for authenticated sessions. Without this change, the check can wait for conn->session_lock or sessions_table_lock. In destroy_previous_session(), the status updates after ksmbd_conn_wait_idle_sess() run with both session locks held for writing. Both the KSMBD_SESS_GOOD error path and the KSMBD_SESS_NEED_SETUP success path call ksmbd_all_conn_set_status(), which takes conn_list_lock for reading. A writer queued on conn_list_lock can block these new read acquisitions. The worker then waits for a session lock held by destroy_previous_session(), which waits behind the writer. The writer cannot proceed until the worker releases conn_list_lock. Try both session locks instead of waiting in the scavenging check. Keep the connection when either lock is busy and let the periodic worker retry later.","publishedAt":"2026-11-07T14:17:02","lastModifiedAt":"2026-11-07T14:17:02","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-99276","cvssScore":null,"cvssVector":null,"epssProbability":0.00145,"riskScore":null,"affectedProduct":"Linux kernel","affectedVersions":"unknown","vulnerabilityType":"Kernel","operatingSystems":[],"links":{"self":"https://www.redsauce.net/api/cves/CVE-2026-99276","webPages":{"es":"https://www.redsauce.net/es/cves/CVE-2026-99276","en":"https://www.redsauce.net/en/cves/CVE-2026-99276","fr":"https://www.redsauce.net/fr/cves/CVE-2026-99276","pt":"https://www.redsauce.net/pt/cves/CVE-2026-99276","de":"https://www.redsauce.net/de/cves/CVE-2026-99276","sk":"https://www.redsauce.net/sk/cves/CVE-2026-99276","el":"https://www.redsauce.net/el/cves/CVE-2026-99276"},"source":"https://nvd.nist.gov/vuln/detail/CVE-2026-99276"}}