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：blk-cgroup: Reinit blkg_iostat_set after clearing in blkcg_reset_stats() When blkg_alloc() is called to allocate a blkcg_gq structure with the associated blkg_iostat_set's, there are 2 fields within blkg_iostat_set that requires proper initialization - blkg & sync. The former field was introduced by commit 3b8cc6298724 (blk-cgroup:
    Optimize blkcg_rstat_flush()) while the later one was introduced by commit f73316482977 (blk-cgroup:
    reimplement basic IO stats using cgroup rstat). Unfortunately those fields in the blkg_iostat_set's are not properly re-initialized when they are cleared in v1's blkcg_reset_stats(). This can lead to a kernel panic due to NULL pointer access of the blkg pointer. The missing initialization of sync is less problematic and can be a problem in a debug kernel due to missing lockdep initialization. Fix these problems by re-initializing them after memory clearing. (CVE-2023-53421)

請注意，Nessus 依賴供應商報告的套件存在。

偵測

Linux Distros 未修補弱點：CVE-2023-53421

medium Nessus Plugin ID 265506

版本 1.21