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CVE-2023-53746 Detail

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.


Metrics

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CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

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URL Source(s) Tag(s)
https://git.kernel.org/stable/c/5195de1d5f66b276683240a896783f7f43c4f664 kernel.org
https://git.kernel.org/stable/c/6a40fda14b4be3e38f03cc42ffd4efbc64fb3e67 kernel.org
https://git.kernel.org/stable/c/7b6a02f5bf15931464c79dfd487c57f76aae3496 kernel.org
https://git.kernel.org/stable/c/8f8cf767589f2131ae5d40f3758429095c701c84 kernel.org
https://git.kernel.org/stable/c/aa2bff25e9bb10c935c7ffe3d5f5975bdccb1749 kernel.org
https://git.kernel.org/stable/c/ee17dea3072dec0bc34399a32fa884e26342e4ea kernel.org

Weakness Enumeration

CWE-ID CWE Name Source

Change History

1 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2023-53746
NVD Published Date:
12/07/2025
NVD Last Modified:
12/07/2025
Source:
kernel.org