CVE-2025-39687

iio: light: as73211: Ensure buffer holes are zeroed

HIGH
7.1
CVSS Score
Published: September 5, 2025 at 05:20 PM UTC
Updated: October 19, 2026 at 09:10 PM UTC
3 products affected across 3 vendorsLinux KernelDebian LinuxSIMATIC CN 4100

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Severity
HIGH7.1
Exploit prediction
EPSS 0.2%

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

5.10 ≤ v < 5.10.2415.11 ≤ v < 5.15.1905.16 ≤ v < 6.1.1496.13 ≤ v < 6.16.46.2 ≤ v < 6.6.1036.7 ≤ v < 6.12.44403e5586b52e466893ce3a7b7f3a3ecdc4c82d3e5.106.176.17 rc16.17 rc2
Vendor states this is fixed in 433b99e922943efdfd62b9a8e3ad1604838181f2 (fixed)
Vendor states this is fixed in 83f14c4ca1ad78fcfb3e0de07d6d8a0c59550fc2 (fixed)
Vendor states this is fixed in 8acd9a0eaa8c9a28e385c0a6a56bb821cb549771 (fixed)
Vendor states this is fixed in 99b508340d0d1b9de0856c48c77898b14c0df7cf (fixed)
Vendor states this is fixed in cce55ca4e7a221d5eb2c0b757a868eacd6344e4a (fixed)
Vendor states this is fixed in d8c5d87a431596e0e02bd7fe3bff952b002a03bb (fixed)
Vendor states this is fixed in fd441fd972067f80861a0b66605c0febb0d038dd (fixed)
Vendor states this is fixed in 5.10 (unaffected)
Vendor states this is fixed in 5.10.241 (unaffected)
Vendor states this is fixed in 5.15.190 (unaffected)
Vendor states this is fixed in 6.1.149 (unaffected)
Vendor states this is fixed in 6.12.44 (unaffected)
Vendor states this is fixed in 6.16.4 (unaffected)
Vendor states this is fixed in 6.17 (unaffected)
Vendor states this is fixed in 6.6.103 (unaffected)
v < V5.0
Affected range stops below V5.0, so it looks safe — our inference, not a vendor statement

References (10)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/433b99e922943efdfd62b9a8e3ad1604838181f2
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/83f14c4ca1ad78fcfb3e0de07d6d8a0c59550fc2
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/8acd9a0eaa8c9a28e385c0a6a56bb821cb549771
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/99b508340d0d1b9de0856c48c77898b14c0df7cf
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/cce55ca4e7a221d5eb2c0b757a868eacd6344e4a
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/d8c5d87a431596e0e02bd7fe3bff952b002a03bb
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/fd441fd972067f80861a0b66605c0febb0d038dd
Mailing ListThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
NVD-CWE-noinfo

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