Linux/Unix 主机中安装的一个或多个程序包受到一个漏洞影响，而供应商没有提供补丁程序。

  - iavf修复 重置错误处理不在 iavf_reset_task 错误处理中调用 iavf_close。这样做会导致 napi_disable 的双重调用从而导致死锁。删除 VF 将导致 iavf_remove 任务被卡住因为它需要 crit_lock而其由 iavf_close 占用。如果重置失败则调用 iavf_disable_vf以便驱动程序清除剩余的无效资源。在快速 VF 重置期间HW 可能无法设置 VF 邮箱。错误的错误处理可导致 iavf_remove 卡住[ 5218.999087] iavf 0000:82:01.0无法初始化 adminq-53 ... [ 5267.189211] INFO任务 repro.sh:11219 阻断超过 30 秒。 [ 5267.189520] 受感染GSE 5.18.0-04958-ga54ce3703613-dirty #1 [ 5267.189764] echo 0 > /proc/sys/kernel/hung_task_timeout_secs 禁用此消息。 [ 5267.190062] task:repro.sh state:D stack: 0 pid:11219 ppid: 8162 flags:0x00000000 [ 5267.190347] 调用跟踪[ 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 5267.194361[  ] pci_stop_and_remove_bus_device+0xe/0x36/0xb0 [ 5267.194735] [ 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] vfs_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] RSP: 002b:002b:0x3a/0x80 00000246 ORIG_RAX
    0000000000000001 [ 5267.201981] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f5b381205c8 [5267.202620] RDX: 0000000000000002 RSI: 000055694200BP [ 5267.2034260BP: 00000 ]
    00005569420ee900 R08000000000000000a R0900007f5b38180820 [ 5267.204327] R10000000000000000a R11
    0000000000000246 R1200007f5b383c06e0 [ 5267.205193] R13: 0000000000000002 R14: 00007f5b383bb880 R15
    0000000000000002 [ 5267.206041] </TASK> [ 5267.206970] Kernel panic - not syncinghung_task阻止的任务 [ 5267.207809] CPU: 48 PID: 551 Comm: khungtaskd Kdump: named 受污染的GSE 5.18.0-04958-ga54ce3703613-dirty #1 [ 5267.208726] 硬件名称Dell Inc. PowerEdge R730/0WCJNT, BIOS 2.11.0 11/02/2019 [ 5267.209623] 调用跟踪[ 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)

请注意，Nessus 依赖供应商报告的程序包是否存在进行判断。

检测

Linux Distros 未修补的漏洞：CVE-2022-50053

medium Nessus 插件 ID 248643

版本 1.9