CVE-2025-38062— 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genirq/msi在IOMMU转换过程中存在生命周期问题。
影响版本矩阵 12
| 厂商 | 产品 | 版本范围 | 状态 |
|---|---|---|---|
| Linux | Linux | ece6e6f0218b7777e650bf93728130ae6f4feb7d< e4d3763223c7b72ded53425207075e7453b4e3d5 |
affected |
ece6e6f0218b7777e650bf93728130ae6f4feb7d< ba41e4e627db51d914444aee0b93eb67f31fa330 |
affected | ||
ece6e6f0218b7777e650bf93728130ae6f4feb7d< 53f42776e435f63e5f8e61955e4c205dbfeaf524 |
affected | ||
ece6e6f0218b7777e650bf93728130ae6f4feb7d< 856152eb91e67858a09e30a7149a1f29b04b7384 |
affected | ||
ece6e6f0218b7777e650bf93728130ae6f4feb7d< 1f7df3a691740a7736bbc99dc4ed536120eb4746 |
affected | ||
5.2 |
affected | ||
< 5.2 |
unaffected | ||
6.1.141≤ 6.1.* |
unaffected | ||
| … +4 条更多 | |||
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一、 漏洞 CVE-2025-38062 基础信息
漏洞信息
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Vulnerability Title
genirq/msi: Store the IOMMU IOVA directly in msi_desc instead of iommu_cookie
来源: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved:
genirq/msi: Store the IOMMU IOVA directly in msi_desc instead of iommu_cookie
The IOMMU translation for MSI message addresses has been a 2-step process,
separated in time:
1) iommu_dma_prepare_msi(): A cookie pointer containing the IOVA address
is stored in the MSI descriptor when an MSI interrupt is allocated.
2) iommu_dma_compose_msi_msg(): this cookie pointer is used to compute a
translated message address.
This has an inherent lifetime problem for the pointer stored in the cookie
that must remain valid between the two steps. However, there is no locking
at the irq layer that helps protect the lifetime. Today, this works under
the assumption that the iommu domain is not changed while MSI interrupts
being programmed. This is true for normal DMA API users within the kernel,
as the iommu domain is attached before the driver is probed and cannot be
changed while a driver is attached.
Classic VFIO type1 also prevented changing the iommu domain while VFIO was
running as it does not support changing the "container" after starting up.
However, iommufd has improved this so that the iommu domain can be changed
during VFIO operation. This potentially allows userspace to directly race
VFIO_DEVICE_ATTACH_IOMMUFD_PT (which calls iommu_attach_group()) and
VFIO_DEVICE_SET_IRQS (which calls into iommu_dma_compose_msi_msg()).
This potentially causes both the cookie pointer and the unlocked call to
iommu_get_domain_for_dev() on the MSI translation path to become UAFs.
Fix the MSI cookie UAF by removing the cookie pointer. The translated IOVA
address is already known during iommu_dma_prepare_msi() and cannot change.
Thus, it can simply be stored as an integer in the MSI descriptor.
The other UAF related to iommu_get_domain_for_dev() will be addressed in
patch "iommu: Make iommu_dma_prepare_msi() into a generic operation" by
using the IOMMU group mutex.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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genirq/msi在IOMMU转换过程中存在生命周期问题。
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-2025-38062 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-2025-38052 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2022-49934 | 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-2025-38074 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2022-49974 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2022-49968 | 8.0 HIGH | Linux kernel 安全漏洞 |
| CVE-2022-49944 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2022-49952 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2022-50028 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2022-49939 | 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-2022-50099 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2022-50101 | 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-2025-38062
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