CVE-2022-50133— Linux kernel 安全漏洞
一分钟漏洞结论
影响对象
Linux Linux
利用判断
尚无明确在野利用证据，仍需结合暴露面评估
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于xhci_plat_remove未正确处理共享HCD，可能导致空指针取消引用。
可能的 ATT&CK 技术 1 AI
T1499 · Endpoint Denial of Service
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一、 漏洞 CVE-2022-50133 基础信息
漏洞信息
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Vulnerability Title
usb: xhci_plat_remove: avoid NULL dereference
来源: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved:
usb: xhci_plat_remove: avoid NULL dereference
Since commit 4736ebd7fcaff1eb8481c140ba494962847d6e0a ("usb: host:
xhci-plat: omit shared hcd if either root hub has no ports")
xhci->shared_hcd can be NULL, which causes the following Oops
on reboot:
[ 710.124450] systemd-shutdown[1]: Rebooting.
[ 710.298861] xhci-hcd xhci-hcd.2.auto: remove, state 4
[ 710.304217] usb usb3: USB disconnect, device number 1
[ 710.317441] xhci-hcd xhci-hcd.2.auto: USB bus 3 deregistered
[ 710.323280] xhci-hcd xhci-hcd.2.auto: remove, state 1
[ 710.328401] usb usb2: USB disconnect, device number 1
[ 710.333515] usb 2-3: USB disconnect, device number 2
[ 710.467649] xhci-hcd xhci-hcd.2.auto: USB bus 2 deregistered
[ 710.475450] Unable to handle kernel NULL pointer dereference at virtual address 00000000000003b8
[ 710.484425] Mem abort info:
[ 710.487265] ESR = 0x0000000096000004
[ 710.491060] EC = 0x25: DABT (current EL), IL = 32 bits
[ 710.496427] SET = 0, FnV = 0
[ 710.499525] EA = 0, S1PTW = 0
[ 710.502716] FSC = 0x04: level 0 translation fault
[ 710.507648] Data abort info:
[ 710.510577] ISV = 0, ISS = 0x00000004
[ 710.514462] CM = 0, WnR = 0
[ 710.517480] user pgtable: 4k pages, 48-bit VAs, pgdp=00000008b0050000
[ 710.523976] [00000000000003b8] pgd=0000000000000000, p4d=0000000000000000
[ 710.530961] Internal error: Oops: 96000004 [#1] PREEMPT SMP
[ 710.536551] Modules linked in: rfkill input_leds snd_soc_simple_card snd_soc_simple_card_utils snd_soc_nau8822 designware_i2s snd_soc_core dw_hdmi_ahb_audio snd_pcm_dmaengine arm_ccn panfrost ac97_bus gpu_sched snd_pcm at24 fuse configfs sdhci_of_dwcmshc sdhci_pltfm sdhci nvme led_class mmc_core nvme_core bt1_pvt polynomial tp_serio snd_seq_midi snd_seq_midi_event snd_seq snd_timer snd_rawmidi snd_seq_device snd soundcore efivarfs ipv6
[ 710.575286] CPU: 7 PID: 1 Comm: systemd-shutdow Not tainted 5.19.0-rc7-00043-gfd8619f4fd54 #1
[ 710.583822] Hardware name: T-Platforms TF307-MB/BM1BM1-A, BIOS 5.6 07/06/2022
[ 710.590972] pstate: 40000005 (nZcv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[ 710.597949] pc : usb_remove_hcd+0x34/0x1e4
[ 710.602067] lr : xhci_plat_remove+0x74/0x140
[ 710.606351] sp : ffff800009f3b7c0
[ 710.609674] x29: ffff800009f3b7c0 x28: ffff000800960040 x27: 0000000000000000
[ 710.616833] x26: ffff800008dc22a0 x25: 0000000000000000 x24: 0000000000000000
[ 710.623992] x23: 0000000000000000 x22: ffff000805465810 x21: ffff000805465800
[ 710.631149] x20: ffff000800f80000 x19: 0000000000000000 x18: ffffffffffffffff
[ 710.638307] x17: ffff000805096000 x16: ffff00080633b800 x15: ffff000806537a1c
[ 710.645465] x14: 0000000000000001 x13: 0000000000000000 x12: ffff00080378d6f0
[ 710.652621] x11: ffff00080041a900 x10: ffff800009b204e8 x9 : ffff8000088abaa4
[ 710.659779] x8 : ffff000800960040 x7 : ffff800009409000 x6 : 0000000000000001
[ 710.666936] x5 : ffff800009241000 x4 : ffff800009241440 x3 : 0000000000000000
[ 710.674094] x2 : ffff000800960040 x1 : ffff000800960040 x0 : 0000000000000000
[ 710.681251] Call trace:
[ 710.683704] usb_remove_hcd+0x34/0x1e4
[ 710.687467] xhci_plat_remove+0x74/0x140
[ 710.691400] platform_remove+0x34/0x70
[ 710.695165] device_remove+0x54/0x90
[ 710.698753] device_release_driver_internal+0x200/0x270
[ 710.703992] device_release_driver+0x24/0x30
[ 710.708273] bus_remove_device+0xe0/0x16c
[ 710.712293] device_del+0x178/0x390
[ 710.715797] platform_device_del.part.0+0x24/0x90
[ 710.720514] platform_device_unregister+0x30/0x50
[ 710.725232] dwc3_host_exit+0x20/0x30
[ 710.728907] dwc3_remove+0x174/0x1b0
[ 710.732494] platform_remove+0x34/0x70
[ 710.736254] device_remove+0x54/0x90
[ 710.739840] device_release_driver_internal+0x200/0x270
[ 710.745078] device_release_driver+0x24/0x30
[ 710.749359] bus_remove_device+0xe0/0x16c
[ 710.753380] device_del+0x178/0x390
[ 710.756881] platform_device_del.part
---truncated---
来源: CVE Program / CVE List V5
CVSS Information
N/A
来源: CVE Program / CVE List V5
Vulnerability Type
N/A
来源: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于xhci_plat_remove未正确处理共享HCD，可能导致空指针取消引用。
来源: 中国国家信息安全漏洞库 CNNVD
CVSS Information
N/A
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Type
N/A
来源: 中国国家信息安全漏洞库 CNNVD
受影响产品
二、漏洞 CVE-2022-50133 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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同批安全公告 · Linux · 2025-06-18 · 共 362 条
| CVE-2025-38075 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2022-50098 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2022-49934 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2025-38052 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2022-50164 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2025-38016 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2022-49974 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2025-38074 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2022-49968 | 8.0 HIGH | Linux kernel 安全漏洞 |
| CVE-2022-49939 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2022-50022 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2022-50028 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2022-49935 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2025-38082 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2022-50182 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2025-38080 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2025-38079 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2022-50099 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2025-38062 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2025-38060 | 7.8 HIGH | Linux kernel 安全漏洞 |
显示前 20 条，共 362 条。 查看全部 → →
IV. Related Vulnerabilities
V. Comments for CVE-2022-50133
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