CVE-2025-38679
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-09-04

Last updated on: 2025-11-03

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: media: venus: Fix OOB read due to missing payload bound check Currently, The event_seq_changed() handler processes a variable number of properties sent by the firmware. The number of properties is indicated by the firmware and used to iterate over the payload. However, the payload size is not being validated against the actual message length. This can lead to out-of-bounds memory access if the firmware provides a property count that exceeds the data available in the payload. Such a condition can result in kernel crashes or potential information leaks if memory beyond the buffer is accessed. Fix this by properly validating the remaining size of the payload before each property access and updating bounds accordingly as properties are parsed. This ensures that property parsing is safely bounded within the received message buffer and protects against malformed or malicious firmware behavior.
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Meta Information
Published
2025-09-04
Last Modified
2025-11-03
Generated
2026-05-07
AI Q&A
2025-09-04
EPSS Evaluated
2026-05-05
NVD
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
linux linux_kernel 6.1.153-1
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-UNKNOWN
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AI Powered Q&A
Can you explain this vulnerability to me?

This vulnerability is an out-of-bounds (OOB) read in the Linux kernel's media: venus component. The event_seq_changed() handler processes a variable number of properties sent by firmware, but it does not validate the payload size against the actual message length. If the firmware indicates more properties than the payload contains, the kernel may read beyond the buffer boundary, leading to potential crashes or information leaks. The fix involves properly validating the payload size before accessing each property to ensure safe parsing within the message buffer.


How can this vulnerability impact me? :

This vulnerability can cause kernel crashes or potential information leaks by allowing out-of-bounds memory access. If exploited, it could destabilize the system or expose sensitive information from memory beyond the intended buffer.


What immediate steps should I take to mitigate this vulnerability?

To mitigate this vulnerability, update the Linux kernel to a version where the fix for the out-of-bounds read in the media: venus component has been applied. This fix includes proper validation of the payload size before processing properties sent by the firmware, preventing out-of-bounds memory access. Until the update is applied, avoid using untrusted or potentially malicious firmware that could exploit this vulnerability.


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