CVE-2023-53746 - s390/vfio-ap: fix memory leak in vfio_ap device driver

CVE-2023-53746 - s390/vfio-ap: fix memory leak in vfio_ap device driver

https://cvefeed.io/rssfeed/latest.atom / Mon, 12/08/2025 - 04:52
CVE ID : CVE-2023-53746
Published : Dec. 8, 2025, 2:15 a.m. | 29 minutes ago
Description : In the Linux kernel, the following vulnerability has been resolved: s390/vfio-ap: fix memory leak in vfio_ap device driver The device release callback function invoked to release the matrix device uses the dev_get_drvdata(device *dev) function to retrieve the pointer to the vfio_matrix_dev object in order to free its storage. The problem is, this object is not stored as drvdata with the device; since the kfree function will accept a NULL pointer, the memory for the vfio_matrix_dev object is never freed. Since the device being released is contained within the vfio_matrix_dev object, the container_of macro will be used to retrieve its pointer.
Severity: 0.0 | NA
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