power: supply: cpcap-battery: Fix missing nvmem_device_put() causing reference leak
3Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackepss 0.2%
exploitation probability
0.2%top 89% of all CVEs
observed exploitation
nono source reports it
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 products
Linux · LinuxReferences
https://git.kernel.org/stable/c/700c225d829a1256b59053c34a1a9d1a6ab70b09https://git.kernel.org/stable/c/a2c14ff63e0e02e3c832385e523e9cc81301171chttps://git.kernel.org/stable/c/a3d81de441233a92ec21469cd0c4eb3c26b95cd8https://git.kernel.org/stable/c/b56a5cbf8f1f1a5740f1137c89b14d0373309d8dhttps://git.kernel.org/stable/c/deaf6b3f8187231ad8f7770b10ed0be2cd47e9b2https://git.kernel.org/stable/c/fc65520fe0781a1ff46631f111e07b4a1c677b96