CVE-2023-53746

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.

CVSS

No CVSS.

References

Link	Resource
https://git.kernel.org/stable/c/5195de1d5f66b276683240a896783f7f43c4f664
https://git.kernel.org/stable/c/6a40fda14b4be3e38f03cc42ffd4efbc64fb3e67
https://git.kernel.org/stable/c/7b6a02f5bf15931464c79dfd487c57f76aae3496
https://git.kernel.org/stable/c/8f8cf767589f2131ae5d40f3758429095c701c84
https://git.kernel.org/stable/c/aa2bff25e9bb10c935c7ffe3d5f5975bdccb1749
https://git.kernel.org/stable/c/ee17dea3072dec0bc34399a32fa884e26342e4ea

Configurations

No configuration.

History

No history.

Information

Published : 2025-12-08 02:15

Updated : 2026-06-17 06:45

NVD link : CVE-2023-53746

Mitre link : CVE-2023-53746

CVE.ORG link : CVE-2023-53746

JSON object : View

Products Affected

No product.

CWE

No CWE.

{"id": "CVE-2023-53746", "cveTags": [], "metrics": {}, "affected": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "affectedData": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "1fde573413b549d52183382e639c1d6ce88f5959", "lessThan": "5195de1d5f66b276683240a896783f7f43c4f664", "versionType": "git"}, {"status": "affected", "version": "1fde573413b549d52183382e639c1d6ce88f5959", "lessThan": "ee17dea3072dec0bc34399a32fa884e26342e4ea", "versionType": "git"}, {"status": "affected", "version": "1fde573413b549d52183382e639c1d6ce88f5959", "lessThan": "aa2bff25e9bb10c935c7ffe3d5f5975bdccb1749", "versionType": "git"}, {"status": "affected", "version": "1fde573413b549d52183382e639c1d6ce88f5959", "lessThan": "6a40fda14b4be3e38f03cc42ffd4efbc64fb3e67", "versionType": "git"}, {"status": "affected", "version": "1fde573413b549d52183382e639c1d6ce88f5959", "lessThan": "7b6a02f5bf15931464c79dfd487c57f76aae3496", "versionType": "git"}, {"status": "affected", "version": "1fde573413b549d52183382e639c1d6ce88f5959", "lessThan": "8f8cf767589f2131ae5d40f3758429095c701c84", "versionType": "git"}], "programFiles": ["drivers/s390/crypto/vfio_ap_drv.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "4.20"}, {"status": "unaffected", "version": "0", "lessThan": "4.20", "versionType": "semver"}, {"status": "unaffected", "version": "5.4.240", "versionType": "semver", "lessThanOrEqual": "5.4.*"}, {"status": "unaffected", "version": "5.10.177", "versionType": "semver", "lessThanOrEqual": "5.10.*"}, {"status": "unaffected", "version": "5.15.106", "versionType": "semver", "lessThanOrEqual": "5.15.*"}, {"status": "unaffected", "version": "6.1.23", "versionType": "semver", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.2.10", "versionType": "semver", "lessThanOrEqual": "6.2.*"}, {"status": "unaffected", "version": "6.3", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["drivers/s390/crypto/vfio_ap_drv.c"], "defaultStatus": "affected"}]}], "published": "2025-12-08T02:15:49.923", "references": [{"url": "https://git.kernel.org/stable/c/5195de1d5f66b276683240a896783f7f43c4f664", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/6a40fda14b4be3e38f03cc42ffd4efbc64fb3e67", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/7b6a02f5bf15931464c79dfd487c57f76aae3496", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/8f8cf767589f2131ae5d40f3758429095c701c84", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/aa2bff25e9bb10c935c7ffe3d5f5975bdccb1749", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/ee17dea3072dec0bc34399a32fa884e26342e4ea", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Deferred", "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ns390/vfio-ap: fix memory leak in vfio_ap device driver\n\nThe device release callback function invoked to release the matrix device\nuses the dev_get_drvdata(device *dev) function to retrieve the\npointer to the vfio_matrix_dev object in order to free its storage. The\nproblem is, this object is not stored as drvdata with the device; since the\nkfree function will accept a NULL pointer, the memory for the\nvfio_matrix_dev object is never freed.\n\nSince the device being released is contained within the vfio_matrix_dev\nobject, the container_of macro will be used to retrieve its pointer."}], "lastModified": "2026-06-17T06:45:59.977", "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}