CVE-2023-53054

{"id": "CVE-2023-53054", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 1.8}]}, "published": "2025-05-02T16:15:24.483", "references": [{"url": "https://git.kernel.org/stable/c/1f01027c51eb16145e8e07fafea3ca07ef102d06", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/6485fc381b6528b6f547ee1ff10bdbcbe31a6e4c", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/cba76e1fb896b573f09f51aa299223276a77bc90", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/f747313249b74f323ddf841a9c8db14d989f296a", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/ffb8ab6f87bd28d700ab5c20d9d3a7e75067630d", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-401"}]}], "descriptions": [{"lang": "en", "value": "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 -> 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 > /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() -> 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->ll_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)."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: usb: dwc2: se corrige una fuga de devres en hw_enable al reanudar la suspensi\u00f3n. Cada vez que la plataforma pasa a bajo consumo, las rutinas de suspensi\u00f3n/reinicio de PM llaman a __dwc2_lowlevel_hw_enable -> devm_add_action_or_reset(). Esto agrega un nuevo devres cada vez. Esto tambi\u00e9n puede ocurrir en tiempo de ejecuci\u00f3n, ya que dwc2_lowlevel_hw_enable() puede llamarse desde udc_start(). Esto se puede ver con el seguimiento: - echo 1 > /sys/kernel/debug/tracing/events/dev/devres_log/enable - ir a bajo consumo - cat /sys/kernel/debug/tracing/trace Se encuentra una nueva entrada \"ADD\" en cada ciclo de bajo consumo: ... devres_log: 49000000.usb-otg ADD 82a13bba devm_action_release (8 bytes) ... devres_log: 49000000.usb-otg ADD 49889daf devm_action_release (8 bytes) ... Aqu\u00ed se aborda un segundo problema: - regulator_bulk_enable() se llama en cada ciclo de PM (suspender/reanudar). - regulator_bulk_disable() nunca se llama. Por lo tanto, el recuento de referencias para estos reguladores aumenta constantemente, en uno con cada ciclo de bajo consumo, debido a la falta de la llamada a regulator_bulk_disable() en __dwc2_lowlevel_hw_disable(). La correcci\u00f3n original, que introdujo la llamada a devm_add_action_or_reset(), solucion\u00f3 un problema durante el sondeo que se produce debido a otros errores en dwc2_driver_probe() -> dwc2_core_reset(). En ese caso, el sondeo falla sin deshabilitar los reguladores cuando dr_mode == USB_DR_MODE_PERIPHERAL. Mejor soluci\u00f3n: deshabilite todo el hardware de bajo nivel en la ruta de error mediante el indicador \"hsotg->ll_hw_enabled\". Se ha introducido la comprobaci\u00f3n de dr_mode para evitar una llamada dual a dwc2_lowlevel_hw_disable(). \"ll_hw_enabled\" deber\u00eda lograr el mismo efecto (y se utiliza actualmente en la rutina remove())."}], "lastModified": "2025-11-12T17:53:29.540", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "8B4E143B-22A3-4A08-963A-D5E42624F2E9", "versionEndExcluding": "4.5", "versionStartIncluding": "4.4.233"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "5CABC2BE-6BAD-4283-89B2-D98A50976680", "versionEndExcluding": "4.10", "versionStartIncluding": "4.9.233"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "754AC47E-9FCE-4357-9717-F625B68662FB", "versionEndExcluding": "4.15", "versionStartIncluding": "4.14.194"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "672D57CA-6B11-4A62-A86A-7E310B74C321", "versionEndExcluding": "4.20", "versionStartIncluding": "4.19.140"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "FAC905ED-E26D-4E98-9EA6-F9162C3B259C", "versionEndExcluding": "5.5", "versionStartIncluding": "5.4.59"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "ED553EDD-0029-44FB-ABF4-87D601D3D1AD", "versionEndExcluding": "5.8", "versionStartIncluding": "5.7.16"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "214C9267-488A-4796-A952-350A69F24905", "versionEndExcluding": "5.10.177", "versionStartIncluding": "5.8.2"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "0888AE70-CB0A-45C0-B9BD-A5371244C8DB", "versionEndExcluding": "5.15.105", "versionStartIncluding": "5.11"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "642B6F99-95C6-47F5-A9B1-5C45FE08CAD0", "versionEndExcluding": "6.1.22", "versionStartIncluding": "5.16"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "914F22DD-1E6F-4B0A-A14D-3A9F068F6761", "versionEndExcluding": "6.2.9", "versionStartIncluding": "6.2"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.3:rc1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B8E3B0E8-FA27-4305-87BB-AF6C25B160CB"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.3:rc2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A47F0FC3-CE52-4BA1-BA51-22F783938431"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.3:rc3:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "3583026A-27EC-4A4C-850A-83F2AF970673"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}