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CVE-2025-39958— 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PCI设备意外移除时未正确处理IOMMU附加操作，可能导致设备状态不一致。

AI 预测 5.9 利用难度: 中等 EPSS 0.14% · P3

影响版本矩阵 10

厂商产品 版本范围状态
Linux Linux 59bbf596791b89c7f88fdcac29dfc39c1221d25d< 3b32cf6e279597d1b6477fb89d46abf65263c139 affected
59bbf596791b89c7f88fdcac29dfc39c1221d25d< 79fa3a19aa6114189b33e2ba1f393b0f635d7544 affected
59bbf596791b89c7f88fdcac29dfc39c1221d25d< 359613f2fa009587154511e4842e8ab9532edd15 affected
59bbf596791b89c7f88fdcac29dfc39c1221d25d< 9ffaf5229055fcfbb3b3d6f1c7e58d63715c3f73 affected
6.2 affected
< 6.2 unaffected
6.6.160≤ 6.6.* unaffected
6.12.114≤ 6.12.* unaffected
… +2 条更多
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一、 漏洞 CVE-2025-39958 基础信息

漏洞信息
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Vulnerability Title
iommu/s390: Make attach succeed when the device was surprise removed
来源: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: iommu/s390: Make attach succeed when the device was surprise removed When a PCI device is removed with surprise hotplug, there may still be attempts to attach the device to the default domain as part of tear down via (__iommu_release_dma_ownership()), or because the removal happens during probe (__iommu_probe_device()). In both cases zpci_register_ioat() fails with a cc value indicating that the device handle is invalid. This is because the device is no longer part of the instance as far as the hypervisor is concerned. Currently this leads to an error return and s390_iommu_attach_device() fails. This triggers the WARN_ON() in __iommu_group_set_domain_nofail() because attaching to the default domain must never fail. With the device fenced by the hypervisor no DMAs to or from memory are possible and the IOMMU translations have no effect. Proceed as if the registration was successful and let the hotplug event handling clean up the device. This is similar to how devices in the error state are handled since commit 59bbf596791b ("iommu/s390: Make attach succeed even if the device is in error state") except that for removal the domain will not be registered later. This approach was also previously discussed at the link. Handle both cases, error state and removal, in a helper which checks if the error needs to be propagated or ignored. Avoid magic number condition codes by using the pre-existing, but never used, defines for PCI load/store condition codes and rename them to reflect that they apply to all PCI instructions.
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PCI设备意外移除时未正确处理IOMMU附加操作，可能导致设备状态不一致。
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

厂商 产品 影响版本 CPE 订阅
Linux Linux 59bbf596791b89c7f88fdcac29dfc39c1221d25d ~ 3b32cf6e279597d1b6477fb89d46abf65263c139 -
Linux Linux 6.2 -

二、漏洞 CVE-2025-39958 的公开POC

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三、漏洞 CVE-2025-39958 的情报信息

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CVE-2025-39958 补丁与修复 (1)

同批安全公告 · Linux · 2025-10-09 · 共 10 条

CVE-2025-39961 8.8 HIGH Linux kernel 安全漏洞
CVE-2025-39963 7.8 HIGH Linux kernel 安全漏洞
CVE-2025-39956 7.8 HIGH Linux kernel 安全漏洞
CVE-2025-39962 7.5 HIGH Linux kernel 安全漏洞
CVE-2025-39960 7.3 HIGH Linux kernel 安全漏洞
CVE-2025-39957 7.1 HIGH Linux kernel 安全漏洞
CVE-2025-39959 Linux kernel 安全漏洞
CVE-2025-39955 Linux kernel 安全漏洞
CVE-2025-39954 Linux kernel 安全漏洞

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2025-39958

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