CVE-2025-39923— 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，该漏洞源于缺少错误处理，可能导致早期启动崩溃。
可能的 ATT&CK 技术 1 AI
T1564.004 · NTFS File Attributes影响版本矩阵 24
| 厂商 | 产品 | 版本范围 | 状态 |
|---|---|---|---|
| Linux | Linux | 48d163b1aa6e7f650c0b7a4f9c61c387a6def868< 2e257a6125c63350f00dc42b9674f20fd3cf4a9f |
affected |
48d163b1aa6e7f650c0b7a4f9c61c387a6def868< 1d98ba204d8a6db0d986c7f1aefaa0dcd1c007a2 |
affected | ||
48d163b1aa6e7f650c0b7a4f9c61c387a6def868< 6ac1599d0e78036d9d08efc2f58c2d91f0a3ee4c |
affected | ||
48d163b1aa6e7f650c0b7a4f9c61c387a6def868< 555bd16351a35c79efb029a196975a5a27f7fbc4 |
affected | ||
48d163b1aa6e7f650c0b7a4f9c61c387a6def868< ebf6c7c908e5999531c3517289598f187776124f |
affected | ||
48d163b1aa6e7f650c0b7a4f9c61c387a6def868< 1fc14731f0be4885e60702b9596d14d9a79cf053 |
affected | ||
48d163b1aa6e7f650c0b7a4f9c61c387a6def868< 0ff9df758af7022d749718fb6b8385cc5693acf3 |
affected | ||
48d163b1aa6e7f650c0b7a4f9c61c387a6def868< 5068b5254812433e841a40886e695633148d362d |
affected | ||
| … +16 条更多 | |||
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一、 漏洞 CVE-2025-39923 基础信息
漏洞信息
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Vulnerability Title
dmaengine: qcom: bam_dma: Fix DT error handling for num-channels/ees
来源: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved:
dmaengine: qcom: bam_dma: Fix DT error handling for num-channels/ees
When we don't have a clock specified in the device tree, we have no way to
ensure the BAM is on. This is often the case for remotely-controlled or
remotely-powered BAM instances. In this case, we need to read num-channels
from the DT to have all the necessary information to complete probing.
However, at the moment invalid device trees without clock and without
num-channels still continue probing, because the error handling is missing
return statements. The driver will then later try to read the number of
channels from the registers. This is unsafe, because it relies on boot
firmware and lucky timing to succeed. Unfortunately, the lack of proper
error handling here has been abused for several Qualcomm SoCs upstream,
causing early boot crashes in several situations [1, 2].
Avoid these early crashes by erroring out when any of the required DT
properties are missing. Note that this will break some of the existing DTs
upstream (mainly BAM instances related to the crypto engine). However,
clearly these DTs have never been tested properly, since the error in the
kernel log was just ignored. It's safer to disable the crypto engine for
these broken DTBs.
[1]: https://lore.kernel.org/r/CY01EKQVWE36.B9X5TDXAREPF@fairphone.com/
[2]: https://lore.kernel.org/r/20230626145959.646747-1-krzysztof.kozlowski@linaro.org/
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，该漏洞源于缺少错误处理，可能导致早期启动崩溃。
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-2025-39923 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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CVE-2025-39923 补丁与修复 (2)
CVE-2025-39923 其他参考 (1)
同批安全公告 · Linux · 2025-10-01 · 共 169 条
| CVE-2023-53517 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2025-39919 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2025-39918 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53454 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2022-50442 | 8.4 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53493 | 8.4 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53492 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2025-39924 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53510 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2025-39927 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2022-50421 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53506 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2022-50423 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53504 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53495 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53494 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2022-50437 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53478 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53481 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53486 | 7.8 HIGH | Linux kernel 安全漏洞 |
显示前 20 条，共 169 条。 查看全部 → →
IV. Related Vulnerabilities
V. Comments for CVE-2025-39923
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