SB20261022253 - Use-after-free in Linux kernel iio light driver
Published: October 22, 2026
Security Bulletin ID
SB20261022253
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Use-after-free (CVE-ID: CVE-2026-98662)
CWE-ID: CWE-416 - Use After Free
CVSSv4: 5.7 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a local user to potentially cause a denial of service by triggering a kernel use-after-free.
The vulnerability exists due to a use-after-free in the Linux kernel gp2ap020a00f light sensor driver when queued IRQ work executes after device removal has freed the trigger object. A local user can exploit this timing window to cause pending work to call iio_trigger_poll() on the freed object, potentially crashing the kernel.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/63213927b141085b6c8719b8037dab3074b7e0fe
- https://git.kernel.org/stable/c/85c20d1cf3f01a506605a16c2f9ce23b9c8b114f
- https://git.kernel.org/stable/c/a1769877ff52a4f1bfb9ca535d1b5113808bd602
- https://git.kernel.org/stable/c/a36814b9fe00970116d30c3143d81e7425c4d334
- https://git.kernel.org/stable/c/cc71400bc965c0d3894a38ead3d71243400c2d5e