CVE-2024-50198: iio: light: veml6030: fix IIO device retrieval from embedded device
First published: Fri Nov 08 2024(Updated: )
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.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | >=5.5<5.10.228 | |
| Linux Kernel | >=5.11<5.15.169 | |
| Linux Kernel | >=5.16<6.1.114 | |
| Linux Kernel | >=6.2<6.6.58 | |
| Linux Kernel | >=6.7<6.11.5 | |
| Linux Kernel | =6.12-rc1 | |
| Linux Kernel | =6.12-rc2 | |
| Linux Kernel | =6.12-rc3 |
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Reference Links
- https://git.kernel.org/stable/c/bf3ab8e1c28f10df0823d4ff312f83c952b06a15
- https://git.kernel.org/stable/c/50039aec43a82ad2495f2d0fb0c289c8717b4bb2
- https://git.kernel.org/stable/c/bcb90518ccd9e10bf6ab29e31994aab93e4a4361
- https://git.kernel.org/stable/c/2cbb41abae65626736b8b52cf3b9339612c5a86a
- https://git.kernel.org/stable/c/905166531831beb067fffe2bdfc98031ffe89087
- https://git.kernel.org/stable/c/c7c44e57750c31de43906d97813273fdffcf7d02
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-50198
- https://nvd.nist.gov/vuln/detail/CVE-2024-50198
- https://launchpad.net/bugs/cve/CVE-2024-50198
- https://security-tracker.debian.org/tracker/CVE-2024-50198
- https://ubuntu.com/security/CVE-2024-50198
Frequently Asked Questions
What is the severity of CVE-2024-50198?
CVE-2024-50198 is categorized as a moderate severity vulnerability in the Linux kernel.
How do I fix CVE-2024-50198?
To fix CVE-2024-50198, update your Linux kernel to a patched version that addresses this vulnerability.
Which Linux kernel versions are affected by CVE-2024-50198?
CVE-2024-50198 affects multiple versions of the Linux kernel, specifically those between 5.5 and 6.12-rc3.
Is CVE-2024-50198 specific to any particular distribution?
CVE-2024-50198 is not specific to any distribution; it affects the Linux kernel across various Linux distributions.
What does CVE-2024-50198 involve in terms of functionality?
CVE-2024-50198 involves a vulnerability related to IIO device retrieval in the veml6030 light sensor driver.
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