{"id":"CVE-2023-53054","summary":"usb: dwc2: fix a devres leak in hw_enable upon suspend resume","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nusb: dwc2: fix a devres leak in hw_enable upon suspend resume\n\nEach time the platform goes to low power, PM suspend / resume routines\ncall: __dwc2_lowlevel_hw_enable -\u003e devm_add_action_or_reset().\nThis adds a new devres each time.\nThis may also happen at runtime, as dwc2_lowlevel_hw_enable() can be\ncalled from udc_start().\n\nThis can be seen with tracing:\n- echo 1 \u003e /sys/kernel/debug/tracing/events/dev/devres_log/enable\n- go to low power\n- cat /sys/kernel/debug/tracing/trace\n\nA new \"ADD\" entry is found upon each low power cycle:\n... devres_log: 49000000.usb-otg ADD 82a13bba devm_action_release (8 bytes)\n... devres_log: 49000000.usb-otg ADD 49889daf devm_action_release (8 bytes)\n...\n\nA second issue is addressed here:\n- regulator_bulk_enable() is called upon each PM cycle (suspend/resume).\n- regulator_bulk_disable() never gets called.\n\nSo the reference count for these regulators constantly increase, by one\nupon each low power cycle, due to missing regulator_bulk_disable() call\nin __dwc2_lowlevel_hw_disable().\n\nThe original fix that introduced the devm_add_action_or_reset() call,\nfixed an issue during probe, that happens due to other errors in\ndwc2_driver_probe() -\u003e dwc2_core_reset(). Then the probe fails without\ndisabling regulators, when dr_mode == USB_DR_MODE_PERIPHERAL.\n\nRather fix the error path: disable all the low level hardware in the\nerror path, by using the \"hsotg-\u003ell_hw_enabled\" flag. Checking dr_mode\nhas been introduced to avoid a dual call to dwc2_lowlevel_hw_disable().\n\"ll_hw_enabled\" should achieve the same (and is used currently in the\nremove() routine).","modified":"2026-05-07T04:16:10.115162Z","published":"2025-05-02T15:55:09.354Z","related":["SUSE-SU-2025:01918-1","SUSE-SU-2025:01966-1","SUSE-SU-2025:02173-1","SUSE-SU-2025:02262-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53054.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/1f01027c51eb16145e8e07fafea3ca07ef102d06"},{"type":"WEB","url":"https://git.kernel.org/stable/c/6485fc381b6528b6f547ee1ff10bdbcbe31a6e4c"},{"type":"WEB","url":"https://git.kernel.org/stable/c/cba76e1fb896b573f09f51aa299223276a77bc90"},{"type":"WEB","url":"https://git.kernel.org/stable/c/f747313249b74f323ddf841a9c8db14d989f296a"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ffb8ab6f87bd28d700ab5c20d9d3a7e75067630d"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53054.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-53054"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"33a06f1300a79cfd461cea0268f05e969d4f34ec"},{"fixed":"1f01027c51eb16145e8e07fafea3ca07ef102d06"},{"fixed":"cba76e1fb896b573f09f51aa299223276a77bc90"},{"fixed":"ffb8ab6f87bd28d700ab5c20d9d3a7e75067630d"},{"fixed":"6485fc381b6528b6f547ee1ff10bdbcbe31a6e4c"},{"fixed":"f747313249b74f323ddf841a9c8db14d989f296a"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"0"},{"last_affected":"c95e1f67b9a84479d1a6d2e9b123a1553af2a75e"},{"last_affected":"7d2a4749e1589295c69183f7d79d5b62664b34d6"},{"last_affected":"8a8841b9f3eb1f46e3fc6d56a9b9299c53f4f86f"},{"last_affected":"fa7fd9ba18533e9aa5f718a06de3deb522a4b587"},{"last_affected":"b2c2b88b049684b89776036f9a03fcc2d1bb3c22"},{"last_affected":"e7c4b79d70a70b4b7b0a04c640238a2ef0a7a8c8"},{"last_affected":"88dcd13872b11bd60e6d4cb6317821e1d367e524"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-53054.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.9.0"},{"fixed":"5.10.177"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.11.0"},{"fixed":"5.15.105"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"6.1.22"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.2.9"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-53054.json"}}],"schema_version":"1.7.5"}