{"id":"CVE-2023-53596","title":"drivers: base: Free devm resources when unregistering a device","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrivers: base: Free devm resources when unregistering a device\n\nIn the current code, devres_release_all() only gets called if the device\nhas a bus and has been probed.\n…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= a525a3ddeaca69f405d98442ab3c0746e53168dc < 83e2ec36a92432e9445e853c12becbbae353b511","Linux >= a525a3ddeaca69f405d98442ab3c0746e53168dc < b9ef4b0aa91d2f9f5951faafdbbd47cf01799ec3","Linux >= a525a3ddeaca69f405d98442ab3c0746e53168dc < 297992e5c63528e603666e36081836204fc36ec9","Linux >= a525a3ddeaca69f405d98442ab3c0746e53168dc < 3bcc4c2a096e8342c8c719e595ce15de212694dd","Linux >= a525a3ddeaca69f405d98442ab3c0746e53168dc < c8c426fae26086a0ca8ab6cc6da2de79810ec038","Linux >= a525a3ddeaca69f405d98442ab3c0746e53168dc < 699fb50d99039a50e7494de644f96c889279aca3","Linux 3.7"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-11-05T20:24:54.459587Z"},"published":"2025-10-04","updated":"2026-11-05","sourceUpdated":"2026-11-05T20:31:16.441Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2023-53596","references":[{"url":"https://git.kernel.org/stable/c/83e2ec36a92432e9445e853c12becbbae353b511"},{"url":"https://git.kernel.org/stable/c/b9ef4b0aa91d2f9f5951faafdbbd47cf01799ec3"},{"url":"https://git.kernel.org/stable/c/297992e5c63528e603666e36081836204fc36ec9"},{"url":"https://git.kernel.org/stable/c/3bcc4c2a096e8342c8c719e595ce15de212694dd"},{"url":"https://git.kernel.org/stable/c/c8c426fae26086a0ca8ab6cc6da2de79810ec038"},{"url":"https://git.kernel.org/stable/c/699fb50d99039a50e7494de644f96c889279aca3"}],"tags":["cve.org"],"epss":0.00158,"epssPercentile":0.04988,"ingestedAt":"2026-11-05T22:38:31.815Z","slug":"CVE-2023-53596","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\ndrivers: base: Free devm resources when unregistering a device\n\nIn the current code, devres_release_all() only gets called if the device\nhas a bus and has been probed.\n\nThis leads to issues when using bus-less or driver-less devices where\nthe device might never get freed if a managed resource holds a reference\nto the device. This is happening in the DRM framework for example.\n\nWe should thus call devres_release_all() in the device_del() function to\nmake sure that the device-managed actions are properly executed when the\ndevice is unregistered, even if it has neither a bus nor a driver.\n\nThis is effectively the same change than commit 2f8d16a996da (\"devres:\nrelease resources on device_del()\") that got reverted by commit\na525a3ddeaca (\"driver core: free devres in device_release\") over\nmemory leaks concerns.\n\nThis patch effectively combines the two commits mentioned above to\nrelease the resources both on device_del() and device_release() and get\nthe best of both worlds.\n\n## Affected\n\n- `Linux >= a525a3ddeaca69f405d98442ab3c0746e53168dc < 83e2ec36a92432e9445e853c12becbbae353b511`\n- `Linux >= a525a3ddeaca69f405d98442ab3c0746e53168dc < b9ef4b0aa91d2f9f5951faafdbbd47cf01799ec3`\n- `Linux >= a525a3ddeaca69f405d98442ab3c0746e53168dc < 297992e5c63528e603666e36081836204fc36ec9`\n- `Linux >= a525a3ddeaca69f405d98442ab3c0746e53168dc < 3bcc4c2a096e8342c8c719e595ce15de212694dd`\n- `Linux >= a525a3ddeaca69f405d98442ab3c0746e53168dc < c8c426fae26086a0ca8ab6cc6da2de79810ec038`\n- `Linux >= a525a3ddeaca69f405d98442ab3c0746e53168dc < 699fb50d99039a50e7494de644f96c889279aca3`\n- `Linux 3.7`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}