Linux Distros 未修補的弱點：CVE-2022-50726
high Nessus Plugin ID 279889
語言:
概要
Linux/Unix 主機上安裝的一個或多個套件存有弱點，供應商表示將不會修補。說明
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。- net/mlx5修正 async 命令介面中可能的釋放後使用錯誤 mlx5_cmd_cleanup_async_ctx 應該只在其所有回呼處置程式完成之後傳回。在此修補程式之前mlx5_cmd_cleanup_async_ctx 和 mlx5_cmd_exec_cb_handler 之間可能發生下列爭用且會導致釋放後使用1。
當 num_inflight 為 2 時呼叫 mlx5_cmd_cleanup_async_ctx (即提升 1、單一傳送回呼)。 2. mlx5_cmd_cleanup_async_ctx 將 num_inflight 降低至 1。 3. 呼叫 mlx5_cmd_exec_cb_handler將 num_inflight 降低至 0且即將呼叫 wake_up()。 4. mlx5_cmd_cleanup_async_ctx 呼叫 wait_event在條件 (num_inflight == 0) 成立時立即傳回。 5.
mlx5_cmd_cleanup_async_ctx 傳回。 6. mlx5_cmd_cleanup_async_ctx 的呼叫者釋放 mlx5_async_ctx 物件。 7. mlx5_cmd_exec_cb_handler 繼續呼叫已釋放物件上的 wake_up()。透過使用完成物件同步來修正此問題。當 num_inflight 達到 0 時將其標記為完成。追踪錯誤 KASAN在 do_raw_spin_lock+0x23d/0x270 讀取 addr ffff888139cd12f4 的大小 4 中 (由工作 swapper/5/0 CPU: 5 PID: 0 Commswapper/5)未受污染 6.0.0-rc3_for_upstream_debug_2022_08_30_13_10 #1 硬體名稱QEMU Standard PC (Q35 + ICH9, 2009)BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014 呼叫追踪
<IRQ> dump_stack_lvl+0x57/0x7d print_report.cold+0x2d5/0x684 do_raw_spin_lock+0x23d/0x270 kasan_report+0xb1/0x1a0 ? do_raw_spin_lock+0x23d/0x270 do_raw_spin_lock+0x23d/0x270 ? rwlock_bug.part.0+0x90/0x90 ? __delete_object+0xb8/0x100 ? lock_downgrade+0x6e0/0x6e0
_raw_spin_lock_irqsave+0x43/0x60 ? __wake_up_common_lock+0xb9/0x140 __wake_up_common_lock+0xb9/0x140 ?
__wake_up_common+0x650/0x650 ? destroy_tis_callback+0x53/0x70 [mlx5_core] kasan_set_track+0x21/0x30 destroy_tis_callback+0x53/0x70 [mlx5_core] kfree+0x1ba/0x520 ? do_raw_spin_unlock+0x54/0x220 mlx5_cmd_exec_cb_handler+0x136/0x1a0 [mlx5_core] mlx5_cmd_cleanup_async_ctx+0x220/0x220 [mlx5_core] mlx5_cmd_cleanup_async_ctx+0x220/0x220 [mlx5_core] mlx5_cmd_comp_handler+0x65a/0x12b0 [mlx5_core] dump_command+0xcc0/0xcc0 [mlx5_core] ? lockdep_hardirqs_on_prepare+0x400/0x400 ? cmd_comp_notifier+0x7e/0xb0 [mlx5_core] cmd_comp_notifier+0x7e/0xb0 [mlx5_core] atomic_notifier_call_chain+0xd7/0x1d0 mlx5_eq_async_int+0x3ce/0xa20 [mlx5_core] atomic_notifier_call_chain+0xd7/0x1d0 ? irq_release+0x140/0x140 [mlx5_core] irq_int_handler+0x19/0x30 [mlx5_core] __handle_irq_event_percpu+0x1f2/0x620 handle_irq_event+0xb2/0x1d0 handle_edge_irq+0x21e/0xb00
__common_interrupt+0x79/0x1a0 common_interrupt+0x78/0xa0 </IRQ> <TASK> asm_common_interrupt+0x22/0x40 RIP
0010:default_idle+0x42/0x60 程式碼c1 83 e0 07 48 c1 e9 03 83 c0 03 0f b6 14 11 38 d0 7c 04 84 d2 75 14 8b 05 eb 47 22 02 85 c0 7e 07 0b 4800 2d e0 9f <c3> f4 48 c7 c7 80 08 7f 85 e8 d1 d3 3e fe eb de 66 66 2e 0f 1f 84 00 RSP: 0018:ffff888100dbfdf0 EFLAGS: 00000242 RAX: 0000000000000001 RBX: ffffffff84ecbd48 RCX: 1ffffffff0afe110 RDX: 0000000000000004 RSI: 0000000000000000 RDI: ffffffff835cc9bc RBP
R080000000000000005 : 0000000000000001 R09: ffff88881dec4ac3 R10: ffffed1103bd8958 R11: 0000017d0ca571c9 R12: 0000000000000005 R13: ffffffff84f024e0 R14: 0000000000000000 R15: dffffc0000000000 ? default_idle_call+0xcc/0x450 default_idle_call+0xec/0x450 do_idle+0x394/0x450 ? arch_cpu_idle_exit+0x40/0x40 ? do_idle+0x17/0x450 cpu_startup_entry+0x19/0x20 start_secondary+0x221/0x2b0 ? set_cpu_sibling_map+0x2070/0x2070 secondary_startup_64_no_verify+0xcd/0xdb </TASK> Allocated by task 49502: kasan_save_stack+0x1e/0x40 __kasan_kmalloc+0x81/0xa0 kvmalloc_node+0x48/0xe0 mlx5e_bulk_async_init+0x35/0x110 [mlx5_core] mlx5e_tls_priv_tx_list_cleanup+0x84/0x3e0 [mlx5_core] mlx5e_ktls_cleanup_tx+ 0x38f/0x760 [mlx5_core] mlx5e_cleanup_nic_tx+0xa7/0x100 [mlx5_core] mlx5e_detach_netdev+0x1c ---truncated--- (CVE-2022-50726)
請注意，Nessus 的判定取決於廠商所報告的套件是否存在。
解決方案
目前尚未有已知的解決方案。另請參閱
Plugin 詳細資訊
嚴重性: High
ID: 279889
檔案名稱: unpatched_CVE_2022_50726.nasl
版本: 1.7
類型: local
代理程式: unix
系列: Misc.
已發布: 2025/12/25
已更新: 2026/1/15
支援的感應器: Agentless Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus
風險資訊
VPR
風險因素: Medium
分數: 6.7
CVSS v2
風險因素: Medium
基本分數: 6.9
時間性分數: 5.9
媒介: CVSS2#AV:L/AC:M/Au:N/C:C/I:C/A:C
CVSS 評分資料來源: CVE-2022-50726
CVSS v3
風險因素: High
基本分數: 7.8
時間性分數: 7.1
媒介: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
時間媒介: CVSS:3.0/E:U/RL:U/RC:C
弱點資訊
CPE: cpe:/o:canonical:ubuntu_linux:20.04:-:lts, p-cpe:/a:redhat:enterprise_linux:kernel-rt-core, cpe:/o:canonical:ubuntu_linux:24.04:-:lts, p-cpe:/a:centos:centos:kernel-rt-devel-matched, p-cpe:/a:centos:centos:kernel-rt-modules-core, p-cpe:/a:canonical:ubuntu_linux:linux-lowlatency-hwe-5.19, p-cpe:/a:canonical:ubuntu_linux:linux-aws-5.3, p-cpe:/a:canonical:ubuntu_linux:linux-azure-6.11, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-kvm, p-cpe:/a:canonical:ubuntu_linux:linux-hwe, p-cpe:/a:canonical:ubuntu_linux:linux-gcp-5.8, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-modules, cpe:/o:redhat:enterprise_linux:9, p-cpe:/a:canonical:ubuntu_linux:linux-oracle-6.5, p-cpe:/a:canonical:ubuntu_linux:linux-oem-5.17, p-cpe:/a:canonical:ubuntu_linux:linux-hwe-6.2, p-cpe:/a:centos:centos:kernel-rt-core, p-cpe:/a:canonical:ubuntu_linux:linux-aws-5.0, p-cpe:/a:canonical:ubuntu_linux:linux-raspi, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-modules-extra, p-cpe:/a:canonical:ubuntu_linux:linux-oem-6.5, p-cpe:/a:centos:centos:kernel-rt-devel, p-cpe:/a:canonical:ubuntu_linux:linux-oracle, p-cpe:/a:centos:centos:kernel-rt-modules-extra, p-cpe:/a:redhat:enterprise_linux:kernel-rt-selftests-internal, p-cpe:/a:canonical:ubuntu_linux:linux-azure-5.19, p-cpe:/a:redhat:enterprise_linux:kernel-rt-modules-core, p-cpe:/a:redhat:enterprise_linux:kernel-rt-devel-matched, cpe:/o:canonical:ubuntu_linux:16.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:linux-realtime, p-cpe:/a:canonical:ubuntu_linux:linux-azure-5.13, p-cpe:/a:canonical:ubuntu_linux:linux-raspi2, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-devel-matched, p-cpe:/a:canonical:ubuntu_linux:linux-gcp-5.19, p-cpe:/a:centos:centos:kernel-rt-selftests-internal, p-cpe:/a:canonical:ubuntu_linux:linux-gcp-6.2, p-cpe:/a:canonical:ubuntu_linux:linux-xilinx, p-cpe:/a:canonical:ubuntu_linux:linux-hwe-6.11, p-cpe:/a:canonical:ubuntu_linux:linux-azure-5.8, p-cpe:/a:canonical:ubuntu_linux:linux-nvidia-6.2, p-cpe:/a:canonical:ubuntu_linux:linux-riscv-6.14, p-cpe:/a:canonical:ubuntu_linux:linux-oracle-5.0, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-devel, p-cpe:/a:redhat:enterprise_linux:kernel-rt-kvm, p-cpe:/a:centos:centos:kernel-rt-modules, p-cpe:/a:canonical:ubuntu_linux:linux-aws, p-cpe:/a:canonical:ubuntu_linux:linux-oracle-5.13, p-cpe:/a:canonical:ubuntu_linux:linux-oem, p-cpe:/a:canonical:ubuntu_linux:linux-gcp-6.5, p-cpe:/a:centos:centos:kernel-rt-debug-modules-core, p-cpe:/a:canonical:ubuntu_linux:linux-riscv-5.8, p-cpe:/a:redhat:enterprise_linux:kernel-rt-devel, p-cpe:/a:canonical:ubuntu_linux:linux-starfive-5.19, p-cpe:/a:canonical:ubuntu_linux:linux-aws-5.19, p-cpe:/a:canonical:ubuntu_linux:linux-gcp-5.13, p-cpe:/a:canonical:ubuntu_linux:linux-oem-5.14, p-cpe:/a:canonical:ubuntu_linux:linux-gcp, p-cpe:/a:centos:centos:kernel-rt-kvm, cpe:/o:canonical:ubuntu_linux:25.04, p-cpe:/a:canonical:ubuntu_linux:linux-azure, p-cpe:/a:centos:centos:kernel-rt-debug-modules-partner, p-cpe:/a:redhat:enterprise_linux:kernel-rt-modules-partner, p-cpe:/a:centos:centos:kernel-rt, p-cpe:/a:centos:centos:kernel-rt-modules-internal, p-cpe:/a:centos:centos:kernel-rt-debug-modules-extra, p-cpe:/a:redhat:enterprise_linux:kernel-rt-modules-extra, cpe:/o:canonical:ubuntu_linux:22.04:-:lts, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-modules-core, p-cpe:/a:canonical:ubuntu_linux:linux-gcp-5.3, p-cpe:/a:centos:centos:kernel-rt-modules-partner, p-cpe:/a:centos:centos:kernel-rt-debug, p-cpe:/a:redhat:enterprise_linux:kernel-rt-modules, p-cpe:/a:canonical:ubuntu_linux:linux-gke-5.15, p-cpe:/a:canonical:ubuntu_linux:linux-lowlatency-hwe-6.5, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-modules-internal, p-cpe:/a:centos:centos:kernel-rt-debug-devel-matched, p-cpe:/a:canonical:ubuntu_linux:linux-azure-5.3, p-cpe:/a:canonical:ubuntu_linux:linux-starfive-6.5, p-cpe:/a:canonical:ubuntu_linux:linux-oem-5.6, p-cpe:/a:canonical:ubuntu_linux:linux-riscv-6.5, p-cpe:/a:canonical:ubuntu_linux:linux-oracle-5.8, cpe:/o:canonical:ubuntu_linux:18.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:linux-gkeop-5.4, p-cpe:/a:canonical:ubuntu_linux:linux-lowlatency-hwe-6.11, cpe:/o:redhat:enterprise_linux:8, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-core, p-cpe:/a:canonical:ubuntu_linux:linux-lowlatency-hwe-6.2, p-cpe:/a:canonical:ubuntu_linux:linux-allwinner-5.19, p-cpe:/a:canonical:ubuntu_linux:linux-hwe-5.8, p-cpe:/a:canonical:ubuntu_linux:linux-nvidia-6.11, p-cpe:/a:canonical:ubuntu_linux:linux-gkeop-5.15, p-cpe:/a:canonical:ubuntu_linux:linux-hwe-5.13, p-cpe:/a:canonical:ubuntu_linux:linux-raspi-realtime, p-cpe:/a:canonical:ubuntu_linux:linux-azure-fde-5.19, p-cpe:/a:canonical:ubuntu_linux:linux-intel-iot-realtime, p-cpe:/a:canonical:ubuntu_linux:linux-gkeop, p-cpe:/a:canonical:ubuntu_linux:linux-oracle-5.11, p-cpe:/a:canonical:ubuntu_linux:linux-riscv-5.19, p-cpe:/a:canonical:ubuntu_linux:linux-oracle-5.3, p-cpe:/a:canonical:ubuntu_linux:linux-hwe-edge, p-cpe:/a:canonical:ubuntu_linux:linux-aws-5.13, p-cpe:/a:canonical:ubuntu_linux:linux, p-cpe:/a:redhat:enterprise_linux:kernel-rt-modules-internal, p-cpe:/a:canonical:ubuntu_linux:linux-oem-6.11, p-cpe:/a:canonical:ubuntu_linux:linux-aws-5.11, p-cpe:/a:canonical:ubuntu_linux:linux-gke-4.15, p-cpe:/a:canonical:ubuntu_linux:linux-aws-5.8, p-cpe:/a:redhat:enterprise_linux:kernel-rt, p-cpe:/a:canonical:ubuntu_linux:linux-oem-6.0, p-cpe:/a:canonical:ubuntu_linux:linux-azure-6.2, p-cpe:/a:canonical:ubuntu_linux:linux-gcp-6.11, p-cpe:/a:canonical:ubuntu_linux:linux-aws-6.2, p-cpe:/a:canonical:ubuntu_linux:linux-gke, p-cpe:/a:canonical:ubuntu_linux:linux-hwe-5.19, p-cpe:/a:canonical:ubuntu_linux:linux-intel-5.13, p-cpe:/a:centos:centos:kernel-rt-debug-kvm, p-cpe:/a:canonical:ubuntu_linux:linux-gke-5.4, cpe:/o:centos:centos:8, p-cpe:/a:canonical:ubuntu_linux:linux-azure-edge, p-cpe:/a:canonical:ubuntu_linux:linux-hwe-5.11, p-cpe:/a:centos:centos:kernel-rt-debug-modules-internal, p-cpe:/a:canonical:ubuntu_linux:linux-azure-6.5, p-cpe:/a:centos:centos:kernel-rt-debug-devel, p-cpe:/a:canonical:ubuntu_linux:linux-oem-5.13, p-cpe:/a:canonical:ubuntu_linux:linux-aws-6.5, p-cpe:/a:canonical:ubuntu_linux:linux-gcp-5.11, p-cpe:/a:canonical:ubuntu_linux:linux-azure-fde, p-cpe:/a:canonical:ubuntu_linux:linux-nvidia-6.5, p-cpe:/a:centos:centos:kernel-rt-debug-core, p-cpe:/a:canonical:ubuntu_linux:linux-hwe-6.5, p-cpe:/a:canonical:ubuntu_linux:linux-azure-5.11, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-modules-partner, p-cpe:/a:canonical:ubuntu_linux:linux-starfive-6.2, p-cpe:/a:canonical:ubuntu_linux:linux-oem-6.8, p-cpe:/a:canonical:ubuntu_linux:linux-riscv-5.11, p-cpe:/a:centos:centos:kernel-rt-debug-modules, p-cpe:/a:canonical:ubuntu_linux:linux-oem-6.1, p-cpe:/a:canonical:ubuntu_linux:linux-riscv, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug, p-cpe:/a:canonical:ubuntu_linux:linux-azure-fde-6.2, p-cpe:/a:canonical:ubuntu_linux:linux-oem-5.10
必要的 KB 項目: Host/cpu, Host/local_checks_enabled, global_settings/vendor_unpatched, Host/OS/identifier
可輕鬆利用: No known exploits are available
弱點發布日期: 2025/12/24
參考資訊
CVE: CVE-2022-50726