SB20261022245 - Out-of-bounds read in Linux kernel iio proximity driver

Description

This security bulletin contains information about 1 vulnerability.

1) Out-of-bounds read (CVE-ID: CVE-2026-98658)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: 6.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

The vulnerability allows a local privileged user to trigger out-of-bounds reads of kernel memory, potentially causing a denial of service.

The vulnerability exists due to an out-of-bounds read in the Linux kernel AW96103 proximity driver's firmware parser when processing firmware with insufficiently validated length fields. A local privileged user can supply a truncated or malformed firmware image to trigger reads beyond the copied firmware buffer, potentially causing a kernel crash. Subtracting the four-byte register count field from a smaller declared length also causes an integer underflow, producing an excessively large payload length used to iterate over six-byte register/value entries.

Remediation

Install update from vendor's website.

References

• https://git.kernel.org/stable/c/1a7c522a35477d70320bd64aba8e9de0c1058c6f
• https://git.kernel.org/stable/c/4a9b9f2d4e26589afd0ac099c8e5593170dd5ac7
• https://git.kernel.org/stable/c/6501b032be217ecf47e793b78a05078cf0b604ad
• https://git.kernel.org/stable/c/815ae0b73b69ace207b6bbf7ef428b06491c3ddb