CVE-2026-72214
power: supply: cpcap-battery: Fix missing nvmem_device_put() causing reference leak
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Aug 15, 2026 |
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Affected Versions
Linux / Linux
fd46821e85de90fb5b7356251164af4815b6e3f6 < fc65520fe0781a1ff46631f111e07b4a1c677b96 fd46821e85de90fb5b7356251164af4815b6e3f6 < 700c225d829a1256b59053c34a1a9d1a6ab70b09 fd46821e85de90fb5b7356251164af4815b6e3f6 < deaf6b3f8187231ad8f7770b10ed0be2cd47e9b2 fd46821e85de90fb5b7356251164af4815b6e3f6 < a3d81de441233a92ec21469cd0c4eb3c26b95cd8 fd46821e85de90fb5b7356251164af4815b6e3f6 < b56a5cbf8f1f1a5740f1137c89b14d0373309d8d fd46821e85de90fb5b7356251164af4815b6e3f6 < a2c14ff63e0e02e3c832385e523e9cc81301171c
Linux / Linux
5.18
References
git.kernel.org: https://git.kernel.org/stable/c/fc65520fe0781a1ff46631f111e07b4a1c677b96 git.kernel.org: https://git.kernel.org/stable/c/700c225d829a1256b59053c34a1a9d1a6ab70b09 git.kernel.org: https://git.kernel.org/stable/c/deaf6b3f8187231ad8f7770b10ed0be2cd47e9b2 git.kernel.org: https://git.kernel.org/stable/c/a3d81de441233a92ec21469cd0c4eb3c26b95cd8 git.kernel.org: https://git.kernel.org/stable/c/b56a5cbf8f1f1a5740f1137c89b14d0373309d8d git.kernel.org: https://git.kernel.org/stable/c/a2c14ff63e0e02e3c832385e523e9cc81301171c