Threats Tagged 'ubuntu-cve-2026-31476'
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Threats Tagged 'ubuntu-cve-2026-31476'
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Linux hwe edge: In the Linux kernel, the following vulnerability has been resolved: ksmbd: do not expire session on binding failure When a multichannel session… (CVE-2026-31476)CVE-2026-31476 0 In the Linux kernel, the following vulnerability has been resolved: ksmbd: do not expire session on binding failure When a multichannel session binding request fails (e.g. wrong password), the error path unconditionally sets sess->state = SMB2_SESSION_EXPIRED. However, during binding, sess points to the target session looked up via ksmbd_session_lookup_slowpath() -- which belongs to another connection's user. This allows a remote attacker to invalidate any active session by simply sending a binding request with a wrong password (DoS). Fix this by skipping session expiration when the failed request was a binding attempt, since the session does not belong to the current connection. The reference taken by ksmbd_session_lookup_slowpath() is still correctly released via ksmbd_user_session_put(). Join the discussion | GCVE Database | 04/22/2026, 14:16:00 UTC Added: 07/18/2026, 11:23:40 UTC |
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