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。

  - iavf修正重設錯誤處理 在 iavf_reset_task 錯誤處理中不呼叫 iavf_close。否則會導致 napi_disable 的雙重呼叫進而導致該處鎖死。移除 VF 會導致 iavf_remove 工作停滯因為它需要由 iavf_close 保留的 crit_lock。如果重設失敗呼叫 iavf_disable_vf以便驅動程式清除剩餘的無效資源。在快速 VF 重設期間HW 可能無法設定 VF 信箱。錯誤的錯誤處理可導致 iavf_remove 停滯 [ 5218.999087] iavf 0000:82:01.0: 無法初始化 adminq-53 ... [ 5267.189211] 資訊工作 repro.sh:11219 的封鎖時間超過 30 秒。 [ 5267.189520] 受污染GSE 5.18.0-04958-ga54ce3703613-dirty #1 [ 5267.189764] echo 0 > /proc/sys/kernel/hung_task_timeout_secs 停用了此訊息。 [ 5267.190062] task:repro.sh state:D 堆疊0 pid11219 ppid8162 flags0x00000000 [ 5267.190347] 呼叫追踪 [ 5267.190647] <TASK> [5267.190927] __schedule+0x460/0x9f0 [ 5267.191264] schedule+0x44/0xb0 [ 5267.191563] schedule_preempt_disabled+0x14/0x20 [ 5267.191890] __mutex_lock.isra.12+0x6e3/0xac0 [ 5267.192237] ? iavf_remove+0xf9/0x6c0 [iavf] [ 5267.192565] iavf_remove+0x12a/0x6c0 [iavf] [ 5267.192911]
    _raw_spin_unlock_irqrestore+0x1e/0x40 [ 5267.193285] pci_device_remove+0x36/0xb0 [ 5267.193619] device_release_driver_internal+0xc1/0x150 [ 5267.193974] pci_stop_bus_device+0x69/0x90 [ [] ] pci_stop_and_remove_bus_device+0xe/0x20 [ 5267.194361tvirfn+0ci_stop_bus_device+0x69/0x90 [ 5267.194735] pci_stop_and_remove_bus_device+0xe/0x20 [[] 2014 年 1 月[ 5267.195130] sriov_disable+0x2f/0xe0 [ 5267.195506] ice_free_vfs+0x7d/0x2f0 [ice] [ 5267.196056] ? pci_get_device+0x4f/0x70 [ 5267.196496] ice_sriov_configure+0x78/0x1a0 [ice] [ 5267.196995] sriov_numvfs_store+0xfe/0x140 [ 5267.197466] kernfs_fop_write_iter+0x12e/0x1c0 [ 5267.197918] new_sync_write+0x10c/0x190 [ 5267.198404] vs_write+ 0x24e/0x2d0 [ 5267.198886] ksys_write+0x5c/0xd0 [5267.199367] do_syscall_64+0x3a/0x80 [ 5267.199827] entry_SYSCALL_64_after_hwframe+0x46/0xb0 [5267.200317] RIP 0033:0x7f5b381205c8 [ 5267.200814] LAEFfff:c8 00000246 ORIG_RAX
    0000000000000001 [ 5267.201981] RAX ffffffffffffffda RBX 0000000000000002 RCX 00007f5b381205c8 [5267.202620] RDX 0000000000000002 RSI 00005569420ee900 RDI: 000100]0 [000000000BP] 5267.203426[0 ]
    00005569420ee900 R08000000000000000a R0900007f5b38180820 [ 5267.204327] R10000000000000000a R11
    0000000000000246 R1200007f5b383c06e0 [ 5267.205193] R130000000000000002 R1400007f5b383bb880 R15
    0000000000000002 [ 5267.206041] </TASK> [ 5267.206970] 核心錯誤 - 未同步hung_task封鎖的工作 [ 5267.207809] CPU48 PID551 通訊khungtaskd Kdump已載入 受污染的 GSE 5.18.0-04958-ga54ce3703613-dirty #1 [ 5267.208726] 硬體名稱Dell Inc. PowerEdge R730/0WCJNT、BIOS 2.11.0 2019 年 11 月 2 日 [ 5267.209623] 呼叫追踪 [ 5267.210569] <TASK> [ 5267.211480] dump_stack_lvl+0x33/0x42 [ 5267.212472] panic+0x107/0x294 [ 5267.213467] watchdog.cold.8+0xc/0xbb [ 5267.214413] ? proc_dohung_task_timeout_secs+0x30/0x30 [ 5267.215511] kthread+0xf4/0x120 [ 5267.216459] ? kthread_complete_and_exit+0x20/0x20 [ 5267.217505] ret_from_fork+0x22/0x30 [ 5267.218459] </TASK> (CVE-2022-50053)

請注意，Nessus 依賴供應商報告的套件存在。

偵測

Linux Distros 未修補的弱點：CVE-2022-50053

medium Nessus Plugin ID 248643

版本 1.8