CVE-2026-63935

iio: adc: nxp-sar-adc: fix division by zero in write_raw

MEDIUM
5.5
CVSS Score
Published: July 19, 2026 at 02:55 PM UTC
Updated: October 30, 2026 at 02:28 PM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.1%

Description

In the Linux kernel, the following vulnerability has been resolved: iio: adc: nxp-sar-adc: fix division by zero in write_raw Add a validation check for the sampling frequency value before using it as a divisor. A user writing zero or a negative value to the sampling_frequency sysfs attribute triggers a division by zero in the kernel. Also prevent unsigned integer underflow when the computed cycle count is smaller than NXP_SAR_ADC_CONV_TIME, which would wrap the u32 inpsamp to a huge value.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

7.0 ≤ v < 7.0.124434072a893e4864519c167947083ff3e4cc2d957.07.1
Vendor states this is fixed in a9aba21a539c668a66b58eeb08ad3909e5a54c2a (fixed)
Vendor states this is fixed in cb6ea15e7d3c7518f806975a06b7d4c0a26402ea (fixed)
Vendor states this is fixed in 7.0 (unaffected)
Vendor states this is fixed in 7.0.12 (unaffected)
Vendor states this is fixed in 7.1 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-369

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