Linux/Unix 主機上安裝了一個或多個受到弱點影響的套件，且供應商未提供可用的修補程式。

  - 已解決 Linux 核心中的下列弱點：ACPI: fix NULL pointer dereference Commit 71f642833284 (ACPI: utils: Fix reference counting in for_each_acpi_dev_match()) started doing acpi_dev_put() on a pointer that was possibly NULL. That fails miserably, because that helper inline function is not set up to handle that case. Just make acpi_dev_put() silently accept a NULL pointer, rather than calling down to put_device() with an invalid offset off that NULL pointer. (CVE-2021-47289)

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Linux Distros 未修補的弱點：CVE-2021-47289

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版本 1.8