FKIE_CVE-2022-48871

Vulnerability from fkie_nvd - Published: 2024-08-21 07:15 - Updated: 2026-08-04 10:17
Severity
8.8 (High) - CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.1 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: tty: serial: qcom-geni-serial: fix slab-out-of-bounds on RX FIFO buffer Driver's probe allocates memory for RX FIFO (port->rx_fifo) based on default RX FIFO depth, e.g. 16. Later during serial startup the qcom_geni_serial_port_setup() updates the RX FIFO depth (port->rx_fifo_depth) to match real device capabilities, e.g. to 32. The RX UART handle code will read "port->rx_fifo_depth" number of words into "port->rx_fifo" buffer, thus exceeding the bounds. This can be observed in certain configurations with Qualcomm Bluetooth HCI UART device and KASAN: Bluetooth: hci0: QCA Product ID :0x00000010 Bluetooth: hci0: QCA SOC Version :0x400a0200 Bluetooth: hci0: QCA ROM Version :0x00000200 Bluetooth: hci0: QCA Patch Version:0x00000d2b Bluetooth: hci0: QCA controller version 0x02000200 Bluetooth: hci0: QCA Downloading qca/htbtfw20.tlv bluetooth hci0: Direct firmware load for qca/htbtfw20.tlv failed with error -2 Bluetooth: hci0: QCA Failed to request file: qca/htbtfw20.tlv (-2) Bluetooth: hci0: QCA Failed to download patch (-2) ================================================================== BUG: KASAN: slab-out-of-bounds in handle_rx_uart+0xa8/0x18c Write of size 4 at addr ffff279347d578c0 by task swapper/0/0 CPU: 0 PID: 0 Comm: swapper/0 Not tainted 6.1.0-rt5-00350-gb2450b7e00be-dirty #26 Hardware name: Qualcomm Technologies, Inc. Robotics RB5 (DT) Call trace: dump_backtrace.part.0+0xe0/0xf0 show_stack+0x18/0x40 dump_stack_lvl+0x8c/0xb8 print_report+0x188/0x488 kasan_report+0xb4/0x100 __asan_store4+0x80/0xa4 handle_rx_uart+0xa8/0x18c qcom_geni_serial_handle_rx+0x84/0x9c qcom_geni_serial_isr+0x24c/0x760 __handle_irq_event_percpu+0x108/0x500 handle_irq_event+0x6c/0x110 handle_fasteoi_irq+0x138/0x2cc generic_handle_domain_irq+0x48/0x64 If the RX FIFO depth changes after probe, be sure to resize the buffer.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/894681682dbefdad917b88f86cde1069140a047aPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b8caf69a6946e18ffebad49847e258f5b6d52ac2Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/cb53a3366eb28fed67850c80afa52075bb71a38aPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/fd524ca7fe45b8a06dca2dd546d62684a9768f95Patch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/tty/serial/qcom_geni_serial.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "894681682dbefdad917b88f86cde1069140a047a",
              "status": "affected",
              "version": "f9d690b6ece7ec9a6ff6b588df95a010ab2d66f9",
              "versionType": "git"
            },
            {
              "lessThan": "cb53a3366eb28fed67850c80afa52075bb71a38a",
              "status": "affected",
              "version": "f9d690b6ece7ec9a6ff6b588df95a010ab2d66f9",
              "versionType": "git"
            },
            {
              "lessThan": "fd524ca7fe45b8a06dca2dd546d62684a9768f95",
              "status": "affected",
              "version": "f9d690b6ece7ec9a6ff6b588df95a010ab2d66f9",
              "versionType": "git"
            },
            {
              "lessThan": "b8caf69a6946e18ffebad49847e258f5b6d52ac2",
              "status": "affected",
              "version": "f9d690b6ece7ec9a6ff6b588df95a010ab2d66f9",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/tty/serial/qcom_geni_serial.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.7"
            },
            {
              "lessThan": "5.7",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.165",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.90",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.8",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "5D1B38E6-531E-4689-A204-9E0178E886F5",
              "versionEndExcluding": "5.10.165",
              "versionStartIncluding": "5.7",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "E995CDA5-7223-4FDB-BAD3-81B22C763A43",
              "versionEndExcluding": "5.15.90",
              "versionStartIncluding": "5.11",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "A6AFE6C9-3F59-4711-B2CF-7D6682FF6BD0",
              "versionEndExcluding": "6.1.8",
              "versionStartIncluding": "5.16",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntty: serial: qcom-geni-serial: fix slab-out-of-bounds on RX FIFO buffer\n\nDriver\u0027s probe allocates memory for RX FIFO (port-\u003erx_fifo) based on\ndefault RX FIFO depth, e.g. 16.  Later during serial startup the\nqcom_geni_serial_port_setup() updates the RX FIFO depth\n(port-\u003erx_fifo_depth) to match real device capabilities, e.g. to 32.\n\nThe RX UART handle code will read \"port-\u003erx_fifo_depth\" number of words\ninto \"port-\u003erx_fifo\" buffer, thus exceeding the bounds.  This can be\nobserved in certain configurations with Qualcomm Bluetooth HCI UART\ndevice and KASAN:\n\n  Bluetooth: hci0: QCA Product ID   :0x00000010\n  Bluetooth: hci0: QCA SOC Version  :0x400a0200\n  Bluetooth: hci0: QCA ROM Version  :0x00000200\n  Bluetooth: hci0: QCA Patch Version:0x00000d2b\n  Bluetooth: hci0: QCA controller version 0x02000200\n  Bluetooth: hci0: QCA Downloading qca/htbtfw20.tlv\n  bluetooth hci0: Direct firmware load for qca/htbtfw20.tlv failed with error -2\n  Bluetooth: hci0: QCA Failed to request file: qca/htbtfw20.tlv (-2)\n  Bluetooth: hci0: QCA Failed to download patch (-2)\n  ==================================================================\n  BUG: KASAN: slab-out-of-bounds in handle_rx_uart+0xa8/0x18c\n  Write of size 4 at addr ffff279347d578c0 by task swapper/0/0\n\n  CPU: 0 PID: 0 Comm: swapper/0 Not tainted 6.1.0-rt5-00350-gb2450b7e00be-dirty #26\n  Hardware name: Qualcomm Technologies, Inc. Robotics RB5 (DT)\n  Call trace:\n   dump_backtrace.part.0+0xe0/0xf0\n   show_stack+0x18/0x40\n   dump_stack_lvl+0x8c/0xb8\n   print_report+0x188/0x488\n   kasan_report+0xb4/0x100\n   __asan_store4+0x80/0xa4\n   handle_rx_uart+0xa8/0x18c\n   qcom_geni_serial_handle_rx+0x84/0x9c\n   qcom_geni_serial_isr+0x24c/0x760\n   __handle_irq_event_percpu+0x108/0x500\n   handle_irq_event+0x6c/0x110\n   handle_fasteoi_irq+0x138/0x2cc\n   generic_handle_domain_irq+0x48/0x64\n\nIf the RX FIFO depth changes after probe, be sure to resize the buffer."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: tty: serial: qcom-geni-serial: corrige los l\u00edmites fuera de los l\u00edmites en el b\u00fafer RX FIFO La sonda del controlador asigna memoria para RX FIFO (puerto-\u0026gt;rx_fifo) seg\u00fan el valor predeterminado Profundidad FIFO de RX, por ejemplo, 16. M\u00e1s adelante, durante el inicio en serie, qcom_geni_serial_port_setup() actualiza la profundidad FIFO de RX (puerto-\u0026gt;rx_fifo_profundidad) para que coincida con las capacidades reales del dispositivo, por ejemplo, a 32. El c\u00f3digo de identificador de RX UART leer\u00e1 el n\u00famero \"puerto-\u0026gt;rx_fifo_profundidad\" de palabras en el b\u00fafer \"port-\u0026gt;rx_fifo\", excediendo as\u00ed los l\u00edmites. Esto se puede observar en ciertas configuraciones con el dispositivo Qualcomm Bluetooth HCI UART y KASAN: Bluetooth: hci0: QCA ID de producto: 0x00000010 Bluetooth: hci0: QCA SOC Version: 0x400a0200 Bluetooth: hci0: QCA ROM Version: 0x00000200 Bluetooth: hci0: QCA Patch Version :0x00000d2b Bluetooth: hci0: versi\u00f3n del controlador QCA 0x02000200 Bluetooth: hci0: QCA Descargando qca/htbtfw20.tlv bluetooth hci0: La carga directa del firmware para qca/htbtfw20.tlv fall\u00f3 con el error -2 Bluetooth: hci0: QCA No se pudo solicitar el archivo: qca/ htbtfw20.tlv (-2) Bluetooth: hci0: QCA Error al descargar el parche (-2) =============================== ==================================== ERROR: KASAN: losa fuera de los l\u00edmites en handle_rx_uart+ 0xa8/0x18c Escritura de tama\u00f1o 4 en la direcci\u00f3n ffff279347d578c0 mediante task swapper/0/0 CPU: 0 PID: 0 Comm: swapper/0 Not tainted 6.1.0-rt5-00350-gb2450b7e00be-dirty #26 Nombre de hardware: Qualcomm Technologies, Inc Rob\u00f3tica RB5 (DT) Seguimiento de llamadas: dump_backtrace.part.0+0xe0/0xf0 show_stack+0x18/0x40 dump_stack_lvl+0x8c/0xb8 print_report+0x188/0x488 kasan_report+0xb4/0x100 __asan_store4+0x80/0xa4 handle_rx_uart+0xa. 8/0x18c qcom_geni_serial_handle_rx+ 0x84/0x9c qcom_geni_serial_isr+0x24c/0x760 __handle_irq_event_percpu+0x108/0x500 handle_irq_event+0x6c/0x110 handle_fasteoi_irq+0x138/0x2cc generic_handle_domain_irq+0x48/0x64 Si la profundidad FIFO de RX cambia despu\u00e9s sonda, aseg\u00farese de cambiar el tama\u00f1o del b\u00fafer."
    }
  ],
  "id": "CVE-2022-48871",
  "lastModified": "2026-08-04T10:17:24.623",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "ADJACENT_NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 8.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 5.9,
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.1,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.2,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2022-48871",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2024-09-10T16:05:28.910017Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2024-08-21T07:15:04.207",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/894681682dbefdad917b88f86cde1069140a047a"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/b8caf69a6946e18ffebad49847e258f5b6d52ac2"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/cb53a3366eb28fed67850c80afa52075bb71a38a"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/fd524ca7fe45b8a06dca2dd546d62684a9768f95"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-125"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.

Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

JSON

Loading timeline…




    Related by attack behaviour

    Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.