CVE Catalog

CVE-2026-72214

Low risk· EPSS 11%
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.21%

11th percentile - higher than 11% of all known CVEs

Summary

In the Linux kernel's cpcap-battery driver, a missing nvmem_device_put() call causes a permanent reference leak to the nvmem device. The leak occurs on success and read-failure paths in cpcap_battery_detect_battery_type().

Risk Assessment

The reference leak can prevent the nvmem device from being freed, leading to resource exhaustion and system instability.

Recommendation

Install a kernel patch that adds nvmem_device_put() on all exit paths of the battery type detection function.

Other vulnerabilities in Linux kernel

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Original NVD description (English source)

In the Linux kernel, the following vulnerability has been resolved: power: supply: cpcap-battery: Fix missing nvmem_device_put() causing reference leak In cpcap_battery_detect_battery_type(), the reference to an nvmem device obtained via nvmem_device_find() is not released with nvmem_device_put() on the success or read-failure paths, causing a permanent reference leak. The driver’s retry logic on subsequent battery property reads can compound this leak, preventing the nvmem device from ever being freed. Found by code review.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS