CVE-2023-53054 (GCVE-0-2023-53054)

Vulnerability from cvelistv5 – Published: 2025-05-02 15:55 – Updated: 2025-05-04 12:50
VLAI?
Title
usb: dwc2: fix a devres leak in hw_enable upon suspend resume
Summary
In the Linux kernel, the following vulnerability has been resolved: usb: dwc2: fix a devres leak in hw_enable upon suspend resume Each time the platform goes to low power, PM suspend / resume routines call: __dwc2_lowlevel_hw_enable -> devm_add_action_or_reset(). This adds a new devres each time. This may also happen at runtime, as dwc2_lowlevel_hw_enable() can be called from udc_start(). This can be seen with tracing: - echo 1 > /sys/kernel/debug/tracing/events/dev/devres_log/enable - go to low power - cat /sys/kernel/debug/tracing/trace A new "ADD" entry is found upon each low power cycle: ... devres_log: 49000000.usb-otg ADD 82a13bba devm_action_release (8 bytes) ... devres_log: 49000000.usb-otg ADD 49889daf devm_action_release (8 bytes) ... A second issue is addressed here: - regulator_bulk_enable() is called upon each PM cycle (suspend/resume). - regulator_bulk_disable() never gets called. So the reference count for these regulators constantly increase, by one upon each low power cycle, due to missing regulator_bulk_disable() call in __dwc2_lowlevel_hw_disable(). The original fix that introduced the devm_add_action_or_reset() call, fixed an issue during probe, that happens due to other errors in dwc2_driver_probe() -> dwc2_core_reset(). Then the probe fails without disabling regulators, when dr_mode == USB_DR_MODE_PERIPHERAL. Rather fix the error path: disable all the low level hardware in the error path, by using the "hsotg->ll_hw_enabled" flag. Checking dr_mode has been introduced to avoid a dual call to dwc2_lowlevel_hw_disable(). "ll_hw_enabled" should achieve the same (and is used currently in the remove() routine).
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 33a06f1300a79cfd461cea0268f05e969d4f34ec , < 1f01027c51eb16145e8e07fafea3ca07ef102d06 (git)
Affected: 33a06f1300a79cfd461cea0268f05e969d4f34ec , < cba76e1fb896b573f09f51aa299223276a77bc90 (git)
Affected: 33a06f1300a79cfd461cea0268f05e969d4f34ec , < ffb8ab6f87bd28d700ab5c20d9d3a7e75067630d (git)
Affected: 33a06f1300a79cfd461cea0268f05e969d4f34ec , < 6485fc381b6528b6f547ee1ff10bdbcbe31a6e4c (git)
Affected: 33a06f1300a79cfd461cea0268f05e969d4f34ec , < f747313249b74f323ddf841a9c8db14d989f296a (git)
Affected: c95e1f67b9a84479d1a6d2e9b123a1553af2a75e (git)
Affected: 7d2a4749e1589295c69183f7d79d5b62664b34d6 (git)
Affected: 8a8841b9f3eb1f46e3fc6d56a9b9299c53f4f86f (git)
Affected: fa7fd9ba18533e9aa5f718a06de3deb522a4b587 (git)
Affected: b2c2b88b049684b89776036f9a03fcc2d1bb3c22 (git)
Affected: e7c4b79d70a70b4b7b0a04c640238a2ef0a7a8c8 (git)
Affected: 88dcd13872b11bd60e6d4cb6317821e1d367e524 (git)
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    Linux Linux Affected: 5.9
Unaffected: 0 , < 5.9 (semver)
Unaffected: 5.10.177 , ≤ 5.10.* (semver)
Unaffected: 5.15.105 , ≤ 5.15.* (semver)
Unaffected: 6.1.22 , ≤ 6.1.* (semver)
Unaffected: 6.2.9 , ≤ 6.2.* (semver)
Unaffected: 6.3 , ≤ * (original_commit_for_fix)
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{
  "containers": {
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        {
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          "product": "Linux",
          "programFiles": [
            "drivers/usb/dwc2/platform.c"
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        },
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          "defaultStatus": "affected",
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          "programFiles": [
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          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "version": "6.3",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
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      "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 -\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)."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-04T12:50:11.518Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/1f01027c51eb16145e8e07fafea3ca07ef102d06"
        },
        {
          "url": "https://git.kernel.org/stable/c/cba76e1fb896b573f09f51aa299223276a77bc90"
        },
        {
          "url": "https://git.kernel.org/stable/c/ffb8ab6f87bd28d700ab5c20d9d3a7e75067630d"
        },
        {
          "url": "https://git.kernel.org/stable/c/6485fc381b6528b6f547ee1ff10bdbcbe31a6e4c"
        },
        {
          "url": "https://git.kernel.org/stable/c/f747313249b74f323ddf841a9c8db14d989f296a"
        }
      ],
      "title": "usb: dwc2: fix a devres leak in hw_enable upon suspend resume",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2023-53054",
    "datePublished": "2025-05-02T15:55:09.354Z",
    "dateReserved": "2025-05-02T15:51:43.546Z",
    "dateUpdated": "2025-05-04T12:50:11.518Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}


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