What’s Vulnerable › Vulnerabilities

CVE-2025-39687: iio: light: as73211: Ensure buffer holes are zeroed

• Severity: high (CVSS 7.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-09-05 · updated 2026-10-19

Description

In the Linux kernel, the following vulnerability has been resolved: iio: light: as73211: Ensure buffer holes are zeroed Given that the buffer is copied to a kfifo that ultimately user space can read, ensure we zero it.

Affected products

• Debian Linux: 11.0
• Linux kernel: from 5.10 before 5.10.241; from 5.11 before 5.15.190; from 5.16 before 6.1.149; from 6.2 before 6.6.103; from 6.7 before 6.12.44; from 6.13 before 6.16.4 — fixed in 5.10.241, 5.15.190, 6.1.149, 6.12.44, 6.16.4, 6.6.103

How to fix

Upgrade to a fixed version: Linux kernel 5.10.241, 5.15.190, 6.1.149, 6.12.44. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/433b99e922943efdfd62b9a8e3ad1604838181f2
• https://git.kernel.org/stable/c/83f14c4ca1ad78fcfb3e0de07d6d8a0c59550fc2
• https://git.kernel.org/stable/c/8acd9a0eaa8c9a28e385c0a6a56bb821cb549771
• https://git.kernel.org/stable/c/99b508340d0d1b9de0856c48c77898b14c0df7cf
• https://git.kernel.org/stable/c/cce55ca4e7a221d5eb2c0b757a868eacd6344e4a
• https://git.kernel.org/stable/c/d8c5d87a431596e0e02bd7fe3bff952b002a03bb
• https://git.kernel.org/stable/c/fd441fd972067f80861a0b66605c0febb0d038dd
• https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html
• https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html
• https://cert-portal.siemens.com/productcert/html/ssa-032379.html

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