CVE-2023-53123— 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s390 PCI驱动在功能热插拔时存在资源释放后重用问题。
可能的 ATT&CK 技术 1 AI
T1622 · Debugger Evasion影响版本矩阵 10
| 厂商 | 产品 | 版本范围 | 状态 |
|---|---|---|---|
| Linux | Linux | a50297cf8235b062bcdeaa8b1dad58e69d3e1b43< 437bb839e36cc9f35adc6d2a2bf113b7a0fc9985 |
affected |
a50297cf8235b062bcdeaa8b1dad58e69d3e1b43< a2410d0c3d2d714ed968a135dfcbed6aa3ff7027 |
affected | ||
a50297cf8235b062bcdeaa8b1dad58e69d3e1b43< b99ebf4b62774e690e73a551cf5fbf6f219bdd96 |
affected | ||
a50297cf8235b062bcdeaa8b1dad58e69d3e1b43< ab909509850b27fd39b8ba99e44cda39dbc3858c |
affected | ||
5.13 |
affected | ||
< 5.13 |
unaffected | ||
5.15.104≤ 5.15.* |
unaffected | ||
6.1.21≤ 6.1.* |
unaffected | ||
| … +2 条更多 | |||
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一、 漏洞 CVE-2023-53123 基础信息
漏洞信息
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Vulnerability Title
PCI: s390: Fix use-after-free of PCI resources with per-function hotplug
来源: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved:
PCI: s390: Fix use-after-free of PCI resources with per-function hotplug
On s390 PCI functions may be hotplugged individually even when they
belong to a multi-function device. In particular on an SR-IOV device VFs
may be removed and later re-added.
In commit a50297cf8235 ("s390/pci: separate zbus creation from
scanning") it was missed however that struct pci_bus and struct
zpci_bus's resource list retained a reference to the PCI functions MMIO
resources even though those resources are released and freed on
hot-unplug. These stale resources may subsequently be claimed when the
PCI function re-appears resulting in use-after-free.
One idea of fixing this use-after-free in s390 specific code that was
investigated was to simply keep resources around from the moment a PCI
function first appeared until the whole virtual PCI bus created for
a multi-function device disappears. The problem with this however is
that due to the requirement of artificial MMIO addreesses (address
cookies) extra logic is then needed to keep the address cookies
compatible on re-plug. At the same time the MMIO resources semantically
belong to the PCI function so tying their lifecycle to the function
seems more logical.
Instead a simpler approach is to remove the resources of an individually
hot-unplugged PCI function from the PCI bus's resource list while
keeping the resources of other PCI functions on the PCI bus untouched.
This is done by introducing pci_bus_remove_resource() to remove an
individual resource. Similarly the resource also needs to be removed
from the struct zpci_bus's resource list. It turns out however, that
there is really no need to add the MMIO resources to the struct
zpci_bus's resource list at all and instead we can simply use the
zpci_bar_struct's resource pointer directly.
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s390 PCI驱动在功能热插拔时存在资源释放后重用问题。
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-2023-53123 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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CVE-2023-53123 补丁与修复 (4)
同批安全公告 · Linux · 2025-05-02 · 共 107 条
| CVE-2023-53116 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2023-53083 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2023-53086 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2025-37798 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53138 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53111 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53107 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53102 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53100 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53094 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53090 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53088 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53087 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53084 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53080 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53072 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53065 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53057 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53052 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53046 | 7.8 HIGH | Linux kernel 安全漏洞 |
显示前 20 条，共 107 条。 查看全部 → →
IV. Related Vulnerabilities
V. Comments for CVE-2023-53123
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