CVE-2025-40221
Not scored
media: pci: mg4b: fix uninitialized iio scan data
In the Linux kernel, the following vulnerability has been resolved: media: pci: mg4b: fix uninitialized iio scan data Fix potential leak of uninitialized stack data to userspace by ensuring that the `scan` structure is zeroed before use.
Exploit probability
0.2%
Published
December 4, 2025
Required by
Not available
Last source change
August 12, 2026
02 / AFFECTED SOFTWARE
Affected packages
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
Open Source Vulnerabilities
CVE-2025-40221
View original source
In the Linux kernel, the following vulnerability has been resolved: media: pci: mg4b: fix uninitialized iio scan data Fix potential leak of uninitialized stack data to userspace by ensuring that the `scan` structure is zeroed before use.
05 / REFERENCES
Further evidence
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/b792eba44494b4e6ab5006013335f9819f303b8b
- https://git.kernel.org/stable/c/b7f82da7f86479cb6479a76ebe213ece7c77398f
- https://git.kernel.org/stable/c/c0d3f6969bb4d72476cfe7ea9263831f1c283704
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/40xxx/CVE-2025-40221.json
- https://nvd.nist.gov/vuln/detail/CVE-2025-40221