drivers: base: Free devm resources when unregistering a device

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2023-53596
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2025-10-04 16:15:56 UTC
Updated2026-06-18 14:30:05 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: drivers: base: Free devm resources when unregistering a device In the current code, devres_release_all() only gets called if the device has a bus and has been probed. This leads to issues when using bus-less or driver-less devices where the device might never get freed if a managed resource holds a reference to the device. This is happening in the DRM framework for example. We should thus call devres_release_all() in the device_del() function to make sure that the device-managed actions are properly executed when the device is unregistered, even if it has neither a bus nor a driver. This is effectively the same change than commit 2f8d16a996da ("devres: release resources on device_del()") that got reverted by commit a525a3ddeaca ("driver core: free devres in device_release") over memory leaks concerns. This patch effectively combines the two commits mentioned above to release the resources both on device_del() and device_release() and get the best of both worlds.

Risk And Classification

Primary CVSS: v3.1 7.8 HIGH from [email protected]

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Problem Types: CWE-415

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected a525a3ddeaca69f405d98442ab3c0746e53168dc 83e2ec36a92432e9445e853c12becbbae353b511 git Not specified
CNA Linux Linux affected a525a3ddeaca69f405d98442ab3c0746e53168dc b9ef4b0aa91d2f9f5951faafdbbd47cf01799ec3 git Not specified
CNA Linux Linux affected a525a3ddeaca69f405d98442ab3c0746e53168dc 297992e5c63528e603666e36081836204fc36ec9 git Not specified
CNA Linux Linux affected a525a3ddeaca69f405d98442ab3c0746e53168dc 3bcc4c2a096e8342c8c719e595ce15de212694dd git Not specified
CNA Linux Linux affected a525a3ddeaca69f405d98442ab3c0746e53168dc c8c426fae26086a0ca8ab6cc6da2de79810ec038 git Not specified
CNA Linux Linux affected a525a3ddeaca69f405d98442ab3c0746e53168dc 699fb50d99039a50e7494de644f96c889279aca3 git Not specified
CNA Linux Linux affected 3.7 Not specified
CNA Linux Linux unaffected 3.7 semver Not specified
CNA Linux Linux unaffected 5.10.258 5.10.* semver Not specified
CNA Linux Linux unaffected 5.15.209 5.15.* semver Not specified
CNA Linux Linux unaffected 6.1.53 6.1.* semver Not specified
CNA Linux Linux unaffected 6.4.16 6.4.* semver Not specified
CNA Linux Linux unaffected 6.5.3 6.5.* semver Not specified
CNA Linux Linux unaffected 6.6 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/699fb50d99039a50e7494de644f96c889279aca3 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/83e2ec36a92432e9445e853c12becbbae353b511 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/3bcc4c2a096e8342c8c719e595ce15de212694dd 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/297992e5c63528e603666e36081836204fc36ec9 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/c8c426fae26086a0ca8ab6cc6da2de79810ec038 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/b9ef4b0aa91d2f9f5951faafdbbd47cf01799ec3 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
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