Ubuntu: Security Advisory (USN-7703-4)

The remote host is missing an update for the SPDX-FileCopyrightText: 2025 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

BELL-CVE-2025-21871

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CVE-2025-21871

In the Linux kernel, the following vulnerability has been resolved: tee: optee: Fix supplicant wait loop OP-TEE supplicant is a user-space daemon and it's possible for it be hung or crashed or killed in the middle of processing an OP-TEE RPC call. It becomes more complicated when there is incorre...

CVE-2025-21871

Summary of CVE-2025-21871 (Linux kernel): The vulnerability arises in the OP-TEE subsystem where the supplicant wait loop can cause a hang if the supplicant is hung/crashed/killed during an OP-TEE RPC, especially with shutdown ordering issues between the supplicant and the OP-TEE client. The fix ...