CVE-2025-39785
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-09-11

Last updated on: 2025-11-25

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: drm/hisilicon/hibmc: fix irq_request()'s irq name variable is local The local variable is passed in request_irq (), and there will be use after free problem, which will make request_irq failed. Using the global irq name instead of it to fix.
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Meta Information
Published
2025-09-11
Last Modified
2025-11-25
Generated
2026-06-16
AI Q&A
2025-09-11
EPSS Evaluated
2026-06-14
NVD
CVE-2025-39785
Affected Vendors & Products
Showing 3 associated CPEs
Vendor Product Version / Range
linux linux_kernel 6.17
linux linux_kernel 6.17
linux linux_kernel From 5.15.160 (inc) to 5.16 (inc)
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Exploitability
CWE
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KEV
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CWE ID Description
CWE-416 The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
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Executive Summary

This vulnerability is in the Linux kernel's drm/hisilicon/hibmc component. It involves a local variable used as an irq name being passed to the request_irq() function. Because the variable is local, it leads to a use-after-free problem, causing request_irq() to fail. The fix was to use a global irq name variable instead of the local one.

Impact Analysis

The vulnerability can cause the request_irq() function to fail due to a use-after-free issue with the irq name variable. This failure could potentially disrupt the handling of interrupts in the affected component, possibly leading to system instability or malfunction in the drm/hisilicon/hibmc driver.

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