CVE-2026-72214

Summary

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.

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxfd46821e85de90fb5b7356251164af4815b6e3f6 < fc65520fe0781a1ff46631f111e07b4a1c677b96affected
LinuxLinuxfd46821e85de90fb5b7356251164af4815b6e3f6 < 700c225d829a1256b59053c34a1a9d1a6ab70b09affected
LinuxLinuxfd46821e85de90fb5b7356251164af4815b6e3f6 < deaf6b3f8187231ad8f7770b10ed0be2cd47e9b2affected
LinuxLinuxfd46821e85de90fb5b7356251164af4815b6e3f6 < a3d81de441233a92ec21469cd0c4eb3c26b95cd8affected
LinuxLinuxfd46821e85de90fb5b7356251164af4815b6e3f6 < b56a5cbf8f1f1a5740f1137c89b14d0373309d8daffected
LinuxLinuxfd46821e85de90fb5b7356251164af4815b6e3f6 < a2c14ff63e0e02e3c832385e523e9cc81301171caffected
LinuxLinux5.18affected
LinuxLinux0 < 5.18unaffected
LinuxLinux6.1.178 <= 6.1.*unaffected
LinuxLinux6.6.145 <= 6.6.*unaffected
LinuxLinux6.12.97 <= 6.12.*unaffected
LinuxLinux6.18.40 <= 6.18.*unaffected
LinuxLinux7.1.5 <= 7.1.*unaffected
LinuxLinux7.2 <= *unaffected

Weaknesses

References