CVE-2025-40197
Published Nov 12, 2025
Modified Apr 15, 2026
Description
In the Linux kernel, the following vulnerability has been resolved: media: mc: Clear minor number before put device The device minor should not be cleared after the device is released.
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References
Other References
https://git.kernel.org/stable/c/5d327391f9fafeb0938be4fc538dd0bd54a0b2ef
https://git.kernel.org/stable/c/64dbc6f50ce92b7da203b1bcdd96a370bbc9b74d
https://git.kernel.org/stable/c/7bd4e5367d0940ccec4d7546bb6bd019ab2c71aa
https://git.kernel.org/stable/c/7db47e737128b3585ae679b709b85f3f44cd8750
https://git.kernel.org/stable/c/8cfc8cec1b4da88a47c243a11f384baefd092a50
https://git.kernel.org/stable/c/8f52c7f38f0f2ee2afc331e6b873acba5e9490a8
https://git.kernel.org/stable/c/ac01416d477c2dc6016782635ae022f8cc634a29
https://git.kernel.org/stable/c/dd156f44ea82cc249f46c519eed3b2f8983c8002
Frequently Asked Questions
What is CVE-2025-40197? +
In the Linux kernel, the following vulnerability has been resolved:
media: mc: Clear minor number before put device
The device minor should not be cleared after the device is released.
How do I check if I'm vulnerable to CVE-2025-40197? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.