CVE-2026-53386 Linux CVE debrief

Who should care

Linux kernel users and maintainers, as well as security teams and operators of affected systems, should be aware of this vulnerability and ensure they are running a patched kernel version. This includes reviewing system logs for potential exploitation attempts and applying kernel updates or patches for CVE-2026-53386.

Technical summary

The Linux kernel vulnerability CVE-2026-53386 was found in the ti-ads1298 iio adc. The ads1298_pga_settings array has 7 elements, but ADS1298_MASK_CH_PGA can yield values 0-7. If it yields a value >= 7, this causes an out-of-bounds array access. The fix adds a bounds check and returns -EINVAL if the index is out of range. The remaining value b111 is reserved and should not be seen in a correctly functioning system. This vulnerability has a medium defensive priority.

Defensive priority

Medium

Recommended defensive actions

• Inventory Linux kernel versions and check for patched ti-ads1298 iio adc
• Apply kernel updates or patches for CVE-2026-53386
• Monitor system logs for potential exploitation attempts
• 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
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

The CVE record was published on 2026-07-19T12:16:49.540Z and has not been modified since then. The NVD entry is currently Received. The Linux kernel vulnerability CVE-2026-53386 was found in the ti-ads1298 iio adc. The ads1298_pga_settings array has 7 elements, but ADS1298_MASK_CH_PGA can yield values 0-7. If it yields a value >= 7, this causes an out-of-bounds array access. A bounds check was added and returns -EINVAL if the index is out of range. The remaining value b111 is reserved and should not be seen in a correctly functioning system. Evidence is limited, and defenders should verify patch application and system logs.

Official resources