CVE-2021-47413 (GCVE-0-2021-47413)

Vulnerability from cvelistv5 – Published: 2024-05-21 15:04 – Updated: 2026-05-11 13:54
VLAI
Title
usb: chipidea: ci_hdrc_imx: Also search for 'phys' phandle
Summary
In the Linux kernel, the following vulnerability has been resolved: usb: chipidea: ci_hdrc_imx: Also search for 'phys' phandle When passing 'phys' in the devicetree to describe the USB PHY phandle (which is the recommended way according to Documentation/devicetree/bindings/usb/ci-hdrc-usb2.txt) the following NULL pointer dereference is observed on i.MX7 and i.MX8MM: [ 1.489344] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000098 [ 1.498170] Mem abort info: [ 1.500966] ESR = 0x96000044 [ 1.504030] EC = 0x25: DABT (current EL), IL = 32 bits [ 1.509356] SET = 0, FnV = 0 [ 1.512416] EA = 0, S1PTW = 0 [ 1.515569] FSC = 0x04: level 0 translation fault [ 1.520458] Data abort info: [ 1.523349] ISV = 0, ISS = 0x00000044 [ 1.527196] CM = 0, WnR = 1 [ 1.530176] [0000000000000098] user address but active_mm is swapper [ 1.536544] Internal error: Oops: 96000044 [#1] PREEMPT SMP [ 1.542125] Modules linked in: [ 1.545190] CPU: 3 PID: 7 Comm: kworker/u8:0 Not tainted 5.14.0-dirty #3 [ 1.551901] Hardware name: Kontron i.MX8MM N801X S (DT) [ 1.557133] Workqueue: events_unbound deferred_probe_work_func [ 1.562984] pstate: 80000005 (Nzcv daif -PAN -UAO -TCO BTYPE=--) [ 1.568998] pc : imx7d_charger_detection+0x3f0/0x510 [ 1.573973] lr : imx7d_charger_detection+0x22c/0x510 This happens because the charger functions check for the phy presence inside the imx_usbmisc_data structure (data->usb_phy), but the chipidea core populates the usb_phy passed via 'phys' inside 'struct ci_hdrc' (ci->usb_phy) instead. This causes the NULL pointer dereference inside imx7d_charger_detection(). Fix it by also searching for 'phys' in case 'fsl,usbphy' is not found. Tested on a imx7s-warp board.
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-06-11 17:27 UTC
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 7033 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 746f316b753a83e366bfc5f936cbf0d72d1c2d1d , < b3265b88e83b16c7be762fa5fb7e0632bce0002c (git)
Affected: 746f316b753a83e366bfc5f936cbf0d72d1c2d1d , < 66dd03b10e1c0b2fae006c6e34c18ea8ee033e7b (git)
Affected: 746f316b753a83e366bfc5f936cbf0d72d1c2d1d , < 8253a34bfae3278baca52fc1209b7c29270486ca (git)
guessed Create a notification for this product.
Linux Linux Affected: 5.8
Unaffected: 0 , < 5.8 (semver)
Unaffected: 5.10.73 , ≤ 5.10.* (semver)
Unaffected: 5.14.12 , ≤ 5.14.* (semver)
Unaffected: 5.15 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website
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            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: chipidea: ci_hdrc_imx: Also search for \u0027phys\u0027 phandle\n\nWhen passing \u0027phys\u0027 in the devicetree to describe the USB PHY phandle\n(which is the recommended way according to\nDocumentation/devicetree/bindings/usb/ci-hdrc-usb2.txt) the\nfollowing NULL pointer dereference is observed on i.MX7 and i.MX8MM:\n\n[    1.489344] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000098\n[    1.498170] Mem abort info:\n[    1.500966]   ESR = 0x96000044\n[    1.504030]   EC = 0x25: DABT (current EL), IL = 32 bits\n[    1.509356]   SET = 0, FnV = 0\n[    1.512416]   EA = 0, S1PTW = 0\n[    1.515569]   FSC = 0x04: level 0 translation fault\n[    1.520458] Data abort info:\n[    1.523349]   ISV = 0, ISS = 0x00000044\n[    1.527196]   CM = 0, WnR = 1\n[    1.530176] [0000000000000098] user address but active_mm is swapper\n[    1.536544] Internal error: Oops: 96000044 [#1] PREEMPT SMP\n[    1.542125] Modules linked in:\n[    1.545190] CPU: 3 PID: 7 Comm: kworker/u8:0 Not tainted 5.14.0-dirty #3\n[    1.551901] Hardware name: Kontron i.MX8MM N801X S (DT)\n[    1.557133] Workqueue: events_unbound deferred_probe_work_func\n[    1.562984] pstate: 80000005 (Nzcv daif -PAN -UAO -TCO BTYPE=--)\n[    1.568998] pc : imx7d_charger_detection+0x3f0/0x510\n[    1.573973] lr : imx7d_charger_detection+0x22c/0x510\n\nThis happens because the charger functions check for the phy presence\ninside the imx_usbmisc_data structure (data-\u003eusb_phy), but the chipidea\ncore populates the usb_phy passed via \u0027phys\u0027 inside \u0027struct ci_hdrc\u0027\n(ci-\u003eusb_phy) instead.\n\nThis causes the NULL pointer dereference inside imx7d_charger_detection().\n\nFix it by also searching for \u0027phys\u0027 in case \u0027fsl,usbphy\u0027 is not found.\n\nTested on a imx7s-warp board."
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            "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: usb: chipidea: ci_hdrc_imx: tambi\u00e9n busque \u0027phys\u0027 phandle. Al pasar \u0027phys\u0027 en el \u00e1rbol de dispositivos para describir el phandle USB PHY (que es la forma recomendada seg\u00fan Documentation/devicetree /bindings/usb/ci-hdrc-usb2.txt) se observa la siguiente desreferencia del puntero NULL en i.MX7 e i.MX8MM: [1.489344] No se puede manejar la desreferencia del puntero NULL del kernel en la direcci\u00f3n virtual 00000000000000098 [1.498170] Informaci\u00f3n de cancelaci\u00f3n de memoria: [ 1.500966] ESR = 0x96000044 [ 1.504030] EC = 0x25: DABT (EL actual), IL = 32 bits [ 1.509356] SET = 0, FnV = 0 [ 1.512416] EA = 0, S1PTW = 0 [ 1.515569] FSC = 0x04: error de traducci\u00f3n de nivel 0 [1.520458] Informaci\u00f3n de cancelaci\u00f3n de datos: [1.523349] ISV = 0, ISS = 0x00000044 [1.527196] CM = 0, WnR = 1 [1.530176] [0000000000000098] direcci\u00f3n de usuario pero active_mm es intercambiador [1.536544 ] Error interno: Ups : 96000044 [#1] PREEMPT SMP [ 1.542125] M\u00f3dulos vinculados en: [ 1.545190] CPU: 3 PID: 7 Comm: kworker/u8:0 Not tainted 5.14.0-dirty #3 [ 1.551901] Nombre de hardware: Kontron i.MX8MM N801X S (DT) [1.557133] Cola de trabajo: events_unbound deferred_probe_work_func [1.562984] pstate: 80000005 (Nzcv daif -PAN -UAO -TCO BTYPE=--) [1.568998] pc: imx7d_charger_detection+0x3f0/0x510 [ 1. 573973] lr: imx7d_charger_detection+0x22c /0x510 Esto sucede porque las funciones del cargador verifican la presencia de phy dentro de la estructura imx_usbmisc_data (data-\u0026gt;usb_phy), pero el n\u00facleo chipidea llena el usb_phy pasado a trav\u00e9s de \u0027phys\u0027 dentro de \u0027struct ci_hdrc\u0027 (ci-\u0026gt;usb_phy). Esto provoca la desreferencia del puntero NULL dentro de imx7d_charger_detection(). Solucione el problema buscando tambi\u00e9n \u0027phys\u0027 en caso de que no se encuentre \u0027fsl,usbphy\u0027. Probado en una placa imx7s-warp."
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            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/66dd03b10e1c0b2fae006c6e34c18ea8ee033e7b"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/8253a34bfae3278baca52fc1209b7c29270486ca"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/b3265b88e83b16c7be762fa5fb7e0632bce0002c"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Analyzed",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-476"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Low",
      "current_release_date": "2025-11-21T14:09:56+00:00",
      "cve": "CVE-2021-47413",
      "id": "CVE-2021-47413",
      "initial_release_date": "2021-01-01T00:00:00+00:00",
      "product_status:known_affected": "48",
      "product_status:known_not_affected": "150",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: usb: chipidea: ci_hdrc_imx: Also search for \u0027phys\u0027 phandle",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2021/cve-2021-47413.json",
      "version": "3"
    },
    "vulnrichment": {
      "containers": {
        "adp": [
          {
            "providerMetadata": {
              "dateUpdated": "2024-08-04T05:39:59.295Z",
              "orgId": "af854a3a-2127-422b-91ae-364da2661108",
              "shortName": "CVE"
            },
            "references": [
              {
                "tags": [
                  "x_transferred"
                ],
                "url": "https://git.kernel.org/stable/c/b3265b88e83b16c7be762fa5fb7e0632bce0002c"
              },
              {
                "tags": [
                  "x_transferred"
                ],
                "url": "https://git.kernel.org/stable/c/66dd03b10e1c0b2fae006c6e34c18ea8ee033e7b"
              },
              {
                "tags": [
                  "x_transferred"
                ],
                "url": "https://git.kernel.org/stable/c/8253a34bfae3278baca52fc1209b7c29270486ca"
              }
            ],
            "title": "CVE Program Container"
          },
          {
            "metrics": [
              {
                "other": {
                  "content": {
                    "id": "CVE-2021-47413",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "partial"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2024-06-11T17:27:34.761405Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2024-06-11T17:27:41.221Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "defaultStatus": "unaffected",
              "product": "Linux",
              "programFiles": [
                "drivers/usb/chipidea/ci_hdrc_imx.c"
              ],
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "vendor": "Linux",
              "versions": [
                {
                  "lessThan": "b3265b88e83b16c7be762fa5fb7e0632bce0002c",
                  "status": "affected",
                  "version": "746f316b753a83e366bfc5f936cbf0d72d1c2d1d",
                  "versionType": "git"
                },
                {
                  "lessThan": "66dd03b10e1c0b2fae006c6e34c18ea8ee033e7b",
                  "status": "affected",
                  "version": "746f316b753a83e366bfc5f936cbf0d72d1c2d1d",
                  "versionType": "git"
                },
                {
                  "lessThan": "8253a34bfae3278baca52fc1209b7c29270486ca",
                  "status": "affected",
                  "version": "746f316b753a83e366bfc5f936cbf0d72d1c2d1d",
                  "versionType": "git"
                }
              ]
            },
            {
              "defaultStatus": "affected",
              "product": "Linux",
              "programFiles": [
                "drivers/usb/chipidea/ci_hdrc_imx.c"
              ],
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "vendor": "Linux",
              "versions": [
                {
                  "status": "affected",
                  "version": "5.8"
                },
                {
                  "lessThan": "5.8",
                  "status": "unaffected",
                  "version": "0",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "5.10.*",
                  "status": "unaffected",
                  "version": "5.10.73",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "5.14.*",
                  "status": "unaffected",
                  "version": "5.14.12",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "*",
                  "status": "unaffected",
                  "version": "5.15",
                  "versionType": "original_commit_for_fix"
                }
              ]
            }
          ],
          "cpeApplicability": [
            {
              "nodes": [
                {
                  "cpeMatch": [
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.10.73",
                      "versionStartIncluding": "5.8",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.14.12",
                      "versionStartIncluding": "5.8",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.15",
                      "versionStartIncluding": "5.8",
                      "vulnerable": true
                    }
                  ],
                  "negate": false,
                  "operator": "OR"
                }
              ]
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: chipidea: ci_hdrc_imx: Also search for \u0027phys\u0027 phandle\n\nWhen passing \u0027phys\u0027 in the devicetree to describe the USB PHY phandle\n(which is the recommended way according to\nDocumentation/devicetree/bindings/usb/ci-hdrc-usb2.txt) the\nfollowing NULL pointer dereference is observed on i.MX7 and i.MX8MM:\n\n[    1.489344] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000098\n[    1.498170] Mem abort info:\n[    1.500966]   ESR = 0x96000044\n[    1.504030]   EC = 0x25: DABT (current EL), IL = 32 bits\n[    1.509356]   SET = 0, FnV = 0\n[    1.512416]   EA = 0, S1PTW = 0\n[    1.515569]   FSC = 0x04: level 0 translation fault\n[    1.520458] Data abort info:\n[    1.523349]   ISV = 0, ISS = 0x00000044\n[    1.527196]   CM = 0, WnR = 1\n[    1.530176] [0000000000000098] user address but active_mm is swapper\n[    1.536544] Internal error: Oops: 96000044 [#1] PREEMPT SMP\n[    1.542125] Modules linked in:\n[    1.545190] CPU: 3 PID: 7 Comm: kworker/u8:0 Not tainted 5.14.0-dirty #3\n[    1.551901] Hardware name: Kontron i.MX8MM N801X S (DT)\n[    1.557133] Workqueue: events_unbound deferred_probe_work_func\n[    1.562984] pstate: 80000005 (Nzcv daif -PAN -UAO -TCO BTYPE=--)\n[    1.568998] pc : imx7d_charger_detection+0x3f0/0x510\n[    1.573973] lr : imx7d_charger_detection+0x22c/0x510\n\nThis happens because the charger functions check for the phy presence\ninside the imx_usbmisc_data structure (data-\u003eusb_phy), but the chipidea\ncore populates the usb_phy passed via \u0027phys\u0027 inside \u0027struct ci_hdrc\u0027\n(ci-\u003eusb_phy) instead.\n\nThis causes the NULL pointer dereference inside imx7d_charger_detection().\n\nFix it by also searching for \u0027phys\u0027 in case \u0027fsl,usbphy\u0027 is not found.\n\nTested on a imx7s-warp board."
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2025-05-04T07:10:24.640Z",
            "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "shortName": "Linux"
          },
          "references": [
            {
              "url": "https://git.kernel.org/stable/c/b3265b88e83b16c7be762fa5fb7e0632bce0002c"
            },
            {
              "url": "https://git.kernel.org/stable/c/66dd03b10e1c0b2fae006c6e34c18ea8ee033e7b"
            },
            {
              "url": "https://git.kernel.org/stable/c/8253a34bfae3278baca52fc1209b7c29270486ca"
            }
          ],
          "title": "usb: chipidea: ci_hdrc_imx: Also search for \u0027phys\u0027 phandle",
          "x_generator": {
            "engine": "bippy-1.2.0"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "assignerShortName": "Linux",
        "cveId": "CVE-2021-47413",
        "datePublished": "2024-05-21T15:04:04.060Z",
        "dateReserved": "2024-05-21T14:58:30.818Z",
        "dateUpdated": "2025-05-04T07:10:24.640Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



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