CVE-2024-50198: iio: light: veml6030: fix IIO device retrieval from embedded device

Severity: medium (CVSS 5.5 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: 2024-11-08 · updated 2026-06-17
Weakness: CWE-476

Description

In the Linux kernel, the following vulnerability has been resolved: iio: light: veml6030: fix IIO device retrieval from embedded device The dev pointer that is received as an argument in the in_illuminance_period_available_show function references the device embedded in the IIO device, not in the i2c client. dev_to_iio_dev() must be used to accessthe right data. The current implementation leads to a segmentation fault on every attempt to read the attribute because indio_dev gets a NULL assignment. This bug has been present since the first appearance of the driver, apparently since the last version (V6) before getting applied. A constant attribute was used until then, and the last modifications might have not been tested again.

Affected products

Linux kernel: from 5.5 before 5.10.228; from 5.11 before 5.15.169; from 5.16 before 6.1.114; from 6.2 before 6.6.58; from 6.7 before 6.11.5; 6.12-rc1, 6.12-rc2, 6.12-rc3 — fixed in 5.10.228, 5.15.169, 6.1.114, 6.11.5, 6.6.58

How to fix

Upgrade to a fixed version: Linux kernel 5.10.228, 5.15.169, 6.1.114, 6.11.5. Check the vendor advisory for mitigations.

References

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