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CVE-2022-49200 (GCVE-0-2022-49200)

Vulnerability from cvelistv5 – Published: 2025-02-26 01:55 – Updated: 2026-05-11 18:55
VLAI
Title
Bluetooth: btmtksdio: Fix kernel oops in btmtksdio_interrupt
Summary
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: btmtksdio: Fix kernel oops in btmtksdio_interrupt Fix the following kernel oops in btmtksdio_interrrupt [ 14.339134] btmtksdio_interrupt+0x28/0x54 [ 14.339139] process_sdio_pending_irqs+0x68/0x1a0 [ 14.339144] sdio_irq_work+0x40/0x70 [ 14.339154] process_one_work+0x184/0x39c [ 14.339160] worker_thread+0x228/0x3e8 [ 14.339168] kthread+0x148/0x3ac [ 14.339176] ret_from_fork+0x10/0x30 That happened because hdev->power_on is already called before sdio_set_drvdata which btmtksdio_interrupt handler relies on is not properly set up. The details are shown as the below: hci_register_dev would run queue_work(hdev->req_workqueue, &hdev->power_on) as WQ_HIGHPRI workqueue_struct to complete the power-on sequeunce and thus hci_power_on may run before sdio_set_drvdata is done in btmtksdio_probe. The hci_dev_do_open in hci_power_on would initialize the device and enable the interrupt and thus it is possible that btmtksdio_interrupt is being called right before sdio_set_drvdata is filled out. When btmtksdio_interrupt is being called and sdio_set_drvdata is not filled , the kernel oops is going to happen because btmtksdio_interrupt access an uninitialized pointer.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 9aebfd4a2200ab8075e44379c758bccefdc589bb , < 874eca93966a786eace87fa6dfb206c2dd9519b1 (git)
Affected: 9aebfd4a2200ab8075e44379c758bccefdc589bb , < 70a6cf749d9ff9f463490248322e5343199bc267 (git)
Affected: 9aebfd4a2200ab8075e44379c758bccefdc589bb , < 770a97d3f34b801de1b04737b43e02c55118c41a (git)
Affected: 9aebfd4a2200ab8075e44379c758bccefdc589bb , < 4d3d1f2c35a19988d3c5f0ee86038b525e830840 (git)
Affected: 9aebfd4a2200ab8075e44379c758bccefdc589bb , < 6d7be5afbb41c918d2f12f857f8c7efa50500be2 (git)
Affected: 9aebfd4a2200ab8075e44379c758bccefdc589bb , < b062a0b9c1dc1ff63094337dccfe1568d5b62023 (git)
guessed Create a notification for this product.
Linux Linux Affected: 5.2
Unaffected: 0 , < 5.2 (semver)
Unaffected: 5.4.189 , ≤ 5.4.* (semver)
Unaffected: 5.10.110 , ≤ 5.10.* (semver)
Unaffected: 5.15.33 , ≤ 5.15.* (semver)
Unaffected: 5.16.19 , ≤ 5.16.* (semver)
Unaffected: 5.17.2 , ≤ 5.17.* (semver)
Unaffected: 5.18 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: btmtksdio: Fix kernel oops in btmtksdio_interrupt\n\nFix the following kernel oops in btmtksdio_interrrupt\n\n[   14.339134]  btmtksdio_interrupt+0x28/0x54\n[   14.339139]  process_sdio_pending_irqs+0x68/0x1a0\n[   14.339144]  sdio_irq_work+0x40/0x70\n[   14.339154]  process_one_work+0x184/0x39c\n[   14.339160]  worker_thread+0x228/0x3e8\n[   14.339168]  kthread+0x148/0x3ac\n[   14.339176]  ret_from_fork+0x10/0x30\n\nThat happened because hdev-\u003epower_on is already called before\nsdio_set_drvdata which btmtksdio_interrupt handler relies on is not\nproperly set up.\n\nThe details are shown as the below: hci_register_dev would run\nqueue_work(hdev-\u003ereq_workqueue, \u0026hdev-\u003epower_on) as WQ_HIGHPRI\nworkqueue_struct to complete the power-on sequeunce and thus hci_power_on\nmay run before sdio_set_drvdata is done in btmtksdio_probe.\n\nThe hci_dev_do_open in hci_power_on would initialize the device and enable\nthe interrupt and thus it is possible that btmtksdio_interrupt is being\ncalled right before sdio_set_drvdata is filled out.\n\nWhen btmtksdio_interrupt is being called and sdio_set_drvdata is not filled\n, the kernel oops is going to happen because btmtksdio_interrupt access an\nuninitialized pointer."
        }
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      "providerMetadata": {
        "dateUpdated": "2026-05-11T18:55:04.839Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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          "url": "https://git.kernel.org/stable/c/70a6cf749d9ff9f463490248322e5343199bc267"
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    "nvd": "{\"cve\":{\"id\":\"CVE-2022-49200\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-02-26T07:00:57.067\",\"lastModified\":\"2026-06-17T05:17:21.853\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nBluetooth: btmtksdio: Fix kernel oops in btmtksdio_interrupt\\n\\nFix the following kernel oops in btmtksdio_interrrupt\\n\\n[   14.339134]  btmtksdio_interrupt+0x28/0x54\\n[   14.339139]  process_sdio_pending_irqs+0x68/0x1a0\\n[   14.339144]  sdio_irq_work+0x40/0x70\\n[   14.339154]  process_one_work+0x184/0x39c\\n[   14.339160]  worker_thread+0x228/0x3e8\\n[   14.339168]  kthread+0x148/0x3ac\\n[   14.339176]  ret_from_fork+0x10/0x30\\n\\nThat happened because hdev-\u003epower_on is already called before\\nsdio_set_drvdata which btmtksdio_interrupt handler relies on is not\\nproperly set up.\\n\\nThe details are shown as the below: hci_register_dev would run\\nqueue_work(hdev-\u003ereq_workqueue, \u0026hdev-\u003epower_on) as WQ_HIGHPRI\\nworkqueue_struct to complete the power-on sequeunce and thus hci_power_on\\nmay run before sdio_set_drvdata is done in btmtksdio_probe.\\n\\nThe hci_dev_do_open in hci_power_on would initialize the device and enable\\nthe interrupt and thus it is possible that btmtksdio_interrupt is being\\ncalled right before sdio_set_drvdata is filled out.\\n\\nWhen btmtksdio_interrupt is being called and sdio_set_drvdata is not filled\\n, the kernel oops is going to happen because btmtksdio_interrupt access an\\nuninitialized pointer.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: Bluetooth: btmtksdio: Corrige los errores del kernel en btmtksdio_interrupt Corrige los siguientes errores del kernel en btmtksdio_interrrupt [ 14.339134] btmtksdio_interrupt+0x28/0x54 [ 14.339139] process_sdio_pending_irqs+0x68/0x1a0 [ 14.339144] sdio_irq_work+0x40/0x70 [ 14.339154] process_one_work+0x184/0x39c [ 14.339160] worker_thread+0x228/0x3e8 [ 14.339168] kthread+0x148/0x3ac [ 14.339176] ret_from_fork+0x10/0x30 Esto sucedi\u00f3 porque hdev-\u0026gt;power_on ya se llama antes de que sdio_set_drvdata en el que se basa el controlador btmtksdio_interrupt no est\u00e9 configurado correctamente. Los detalles se muestran a continuaci\u00f3n: hci_register_dev ejecutar\u00eda queue_work(hdev-\u0026gt;req_workqueue, \u0026amp;hdev-\u0026gt;power_on) como WQ_HIGHPRI workqueue_struct para completar la secuencia de encendido y, por lo tanto, hci_power_on puede ejecutarse antes de que sdio_set_drvdata se complete en btmtksdio_probe. hci_dev_do_open en hci_power_on inicializar\u00eda el dispositivo y habilitar\u00eda la interrupci\u00f3n y, por lo tanto, es posible que btmtksdio_interrupt se llame justo antes de que se complete sdio_set_drvdata. Cuando se llama a btmtksdio_interrupt y no se completa sdio_set_drvdata, se producir\u00e1 un error en el kernel porque btmtksdio_interrupt accede a un puntero no 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    "redhat_vex": {
      "aggregate_severity": "None",
      "current_release_date": "2026-06-30T10:22:23+00:00",
      "cve": "CVE-2022-49200",
      "id": "CVE-2022-49200",
      "initial_release_date": "2022-01-01T00:00:00+00:00",
      "product_status:known_not_affected": "274",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: Bluetooth: btmtksdio: Fix kernel oops in btmtksdio_interrupt",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2022/cve-2022-49200.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-11T16:55:29Z",
      "cve": "CVE-2022-49200",
      "id": "CVE-2022-49200",
      "initial_release_date": "2025-02-27T03:10:45Z",
      "product_status:known_affected": "360",
      "product_status:known_not_affected": "343",
      "product_status:recommended": "293",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2022-49200",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2022-49200.json",
      "version": "47"
    }
  }
}



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  • 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.


Detection rules are retrieved from Rulezet.


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.