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。

  - xfrm通过工作队列重新注入传输模式数据包 对 LTP 测试套件的 tcp6-multi-diffip11 压力测试案例进行测试时会显示以下警告 watchdog: BUG: soft lockup - CPU#0 卡住达 22s! [ns-tcpserver:48198] CPU0 PID48198 Commns-tcpserver Kdump 已加载未受感染 6.0.0-rc6+ #39 硬件名称QEMU KVM 虚拟机、BIOS 0.0.0 02/06/2015 pstate80400005 Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : des3_ede_encrypt+0x27c/0x460 [libdes] lr : 0x3f sp
    ffff80000ceaa1b0 x29: ffff80000ceaa1b0 x28: ffff0000df056100 x27: ffff0000e51e5280 x26: ffff80004df75030 x25: ffff0000e51e4600 x24: 000000000000003b x23: 0000000000802080 x22: 000000000000003d x21:
    0000000000000038 x20: 0000000080000020 x19: 000000000000000a x18: 0000000000000033 x17: ffff0000e51e4780 x16: ffff80004e2d1448 x15: ffff80004e2d1248 x14: ffff0000e51e4680 x13: ffff80004e2d1348 x12:
    ffff80004e2d1548 x11: ffff80004e2d1848 x10: ffff80004e2d1648 x9 : ffff80004e2d1748 x8 : ffff80004e2d1948 x7 : 000000000bcaf83d x6 : 000000000000001b x5 : ffff80004e2d1048 x4 : 00000000761bf3bf x3 :
    000000007f1dd0a3 x2 : ffff0000e51e4780 x1 : ffff0000e3b9a2f8 x0 : 00000000db44e872 调用跟踪
    des3_ede_encrypt+0x27c/0x460 [libdes] crypto_des3_ede_encrypt+0x1c/0x30 [des_generic] crypto_cbc_encrypt+0x148/0x190 crypto_skcipher_encrypt+0x2c/0x40 crypto_authenc_encrypt+0xc8/0xfc [authenc] crypto_aead_encrypt+0x2c/0x40 echainiv_encrypt+0x144/0x1a0 [echainiv] crypto_aead_encrypt+0x2c /0x40 esp6_output_tail+0x1c8/0x5d0 [esp6] esp6_output+0x120/0x278 [esp6] xfrm_output_one+0x458/0x4ec xfrm_output_resume+0x6c/0x1f0 xfrm_output+0xac/0x4ac
    __xfrm6_output+0x130/0x270 xfrm6_output+0x60/0xec ip6_xmit+0x2ec/0x5bc inet6_csk_xmit+0xbc/0x10c
    __tcp_transmit_skb+0x460/0x8c0 tcp_write_xmit+0x348/0x890 __tcp_push_pending_frames+0x44/0x110 tcp_rcv_established+0x3c8/0x720 tcp_v6_do_rcv+0xdc/0x4a0 tcp_v6_rcv+0xc24/0xcb0 ip6_protocol_deliver_rcu+0xf0/0x574 ip6_input_finish+0x48/0x7c ip6_input+0x48/0xc0 ip6_rcv_finish+0x80/0x9c xfrm_trans_reinject+0xb0/0xf4 tasklet_action_common.constprop.0+0xf8/0x134 tasklet_action+0x30/0x3c __do_softirq+0x128/0x368 do_softirq+0xb4/0xc0 __local_bh_enable_ip+0xb0/0xb4 put_cpu_fpsimd_context+0x40/0x70 kernel_neon_end+0x20/0x40 sha1_base_do_update.constprop.0. isra.0+0x11c/0x140 [sha1_ce] sha1_ce_finup+0x94/0x110 [sha1_ce] crypto_shash_finup+0x34/0xc0 hmac_finup+0x48/0xe0 crypto_shash_finup+0x34/0xc0 shash_digest_unaligned+0x74/0x90 crypto_shash_digest+0x4c/0x9c shash_ahash_digest+0xc8/0xf0 shash_async_digest+ 0x28/0x34 crypto_ahash_digest+0x48/0xcc crypto_authenc_nomicv+0x88/0xcc [authenc] crypto_authenc_encrypt+0xd8/0xfc [authenc] crypto_aad_encrypt+0x2c/0x40 echainiv_encrypt+0x144/0x1a0 [echainiv] crypto_aead_encrypt+0x2c/0x40 esp6_output_tail+0x1c8/0x5d0 [esp6] esp6_output+0x120/0x278 [esp6] xfrm_output_one+0x458/0x4ec xfrm_output_resume+0x6c/0x1f0 xfrm_output+0xac/0x4ac
    __xfrm6_output+0x130/0x270 xfrm6_output+0x60/0xec ip6_xmit+0x2ec/0x5bc inet6_csk_xmit+0xbc/0x10c
    __tcp_transmit_skb+0x460/0x8c0 tcp_write_xmit+0x348/0x890 __tcp_push_pending_frames+0x44/0x110 tcp_push+0xb4/0x14c tcp_sendmsg_locked+0x71c/0xb64 tcp_sendmsg+0x40/0x6c inet6_sendmsg+0x4c/0x80 sock_sendmsg+0x5c/0x6c __sys_sendto+0x128/0x15c __arm64_sys_sendto+0x30/0x40 invoke_syscall+0x50/0x120 el0_svc_common.constprop.0+0x170/0x194 do_el0_svc+0x38/0x4c el0_svc+0x28/0xe0 el0t_64_sync_handler+0xbc/0x13c el0t_64_sync+0x180/0x184 通过 bcc softqirqirqnttracing -180/0x184 获取 softirq 信息。事件时间... 按 Ctrl-C 结束。 15:34:34 SOFTIRQ TOTAL_nsecs 块 158990 timer 20030920 sched 46577080 net_rx 676746820 tasklet 9906067650 15:34:45 SOFTIRQ TOTAL_nsecs 块 86100 sched 38849790 net_rx ---truncated--- (CVE-2022-50445)

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-2022-50445

medium Nessus 插件 ID 269603

版本 1.5