CVE-2026-98658 Linux CVE debrief

Who should care

Linux kernel maintainers and users, Linux distribution maintainers, and developers using the iio: proximity: aw96103 driver should verify firmware validation and update processes and assess exposure. The vulnerability has the potential to cause significant disruptions to Linux kernel-based systems and devices. Linux kernel maintainers and users, Linux distribution maintainers, and developers using the iio: proximity: aw96103 driver should review Linux

Why it matters

The Linux kernel iio: proximity: aw96103 driver has a vulnerability that allows for a potential buffer overflow when parsing firmware data. Linux kernel maintainers and users, Linux distribution maintainers, and developers using the iio: proximity: aw96103 driver should verify firmware validation and update processes and assess exposure.

• Verify firmware validation and update processes for Linux kernel iio: proximity: aw96103 driver
• Assess exposure of Linux kernel iio: proximity: aw96103 driver in Linux distributions and products

Technical summary

The Linux kernel iio: proximity: aw96103 driver has a vulnerability that allows for a potential buffer overflow when parsing firmware data. The firmware parser reads a length from the binary header and then uses it to walk six-byte register/value entries. A truncated firmware image can make the parser read beyond the copied firmware buffer. The vulnerability affects Linux kernel maintainers and users, Linux distribution maintainers, and developers using the iio: proximity: aw96103 driver. The vulnerability has the potential to cause significant disruptions to Linux kernel-based systems and devices.

Defensive priority

Verify firmware validation and update processes for Linux kernel iio: proximity: aw96103 driver

Recommended defensive actions

• Verify firmware validation and update processes for Linux kernel iio: proximity: aw96103 driver
• Review Linux kernel patch references for implementation
• Assess exposure of Linux kernel iio: proximity: aw96103 driver in Linux distributions and products
• Verify and update Linux kernel iio: proximity: aw96103 driver firmware validation and update processes
• Review compensating controls for exposed systems while remediation is scheduled and verified
• Check relevant monitoring, detection, and logs for exposed assets that need extra review
• Track exceptions, retest remediated assets, and close the item only after evidence is documented

Evidence notes

The CVE record and NVD entry provide details on the vulnerability, but do not specify affected or fixed versions. The Linux kernel patch references are provided. The vulnerability has been resolved in the Linux kernel. The firmware parser reads a length from the binary header and then uses it to walk six-byte register/value entries. A truncated firmware image can make the parser read beyond the copied firmware buffer. The vulnerability has been assigned a CVE ID and has been publicly disclosed.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.