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GHSA-4655-978P-CP8Q

Vulnerability from github – Published: 2025-06-18 12:30 – Updated: 2025-11-13 21:31

Details

In the Linux kernel, the following vulnerability has been resolved:

net: qrtr: start MHI channel after endpoit creation

MHI channel may generates event/interrupt right after enabling. It may leads to 2 race conditions issues.

1) Such event may be dropped by qcom_mhi_qrtr_dl_callback() at check:

if (!qdev || mhi_res->transaction_status)
    return;

Because dev_set_drvdata(&mhi_dev->dev, qdev) may be not performed at this moment. In this situation qrtr-ns will be unable to enumerate services in device.

2) Such event may come at the moment after dev_set_drvdata() and before qrtr_endpoint_register(). In this case kernel will panic with accessing wrong pointer at qcom_mhi_qrtr_dl_callback():

rc = qrtr_endpoint_post(&qdev->ep, mhi_res->buf_addr,
            mhi_res->bytes_xferd);

Because endpoint is not created yet.

So move mhi_prepare_for_transfer_autoqueue after endpoint creation to fix it.

Severity

4.7 (Medium)


                  
                    CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

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{
  "affected": [],
  "aliases": [
    "CVE-2022-50044"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-362"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-06-18T11:15:32Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: qrtr: start MHI channel after endpoit creation\n\nMHI channel may generates event/interrupt right after enabling.\nIt may leads to 2 race conditions issues.\n\n1)\nSuch event may be dropped by qcom_mhi_qrtr_dl_callback() at check:\n\n\tif (!qdev || mhi_res-\u003etransaction_status)\n\t\treturn;\n\nBecause dev_set_drvdata(\u0026mhi_dev-\u003edev, qdev) may be not performed at\nthis moment. In this situation qrtr-ns will be unable to enumerate\nservices in device.\n---------------------------------------------------------------\n\n2)\nSuch event may come at the moment after dev_set_drvdata() and\nbefore qrtr_endpoint_register(). In this case kernel will panic with\naccessing wrong pointer at qcom_mhi_qrtr_dl_callback():\n\n\trc = qrtr_endpoint_post(\u0026qdev-\u003eep, mhi_res-\u003ebuf_addr,\n\t\t\t\tmhi_res-\u003ebytes_xferd);\n\nBecause endpoint is not created yet.\n--------------------------------------------------------------\nSo move mhi_prepare_for_transfer_autoqueue after endpoint creation\nto fix it.",
  "id": "GHSA-4655-978p-cp8q",
  "modified": "2025-11-13T21:31:18Z",
  "published": "2025-06-18T12:30:44Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-50044"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/68a838b84effb7b57ba7d50b1863fc6ae35a54ce"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a1a75f78a2937567946b1b756f82462874b5ca20"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c682fb70a7dfc25b848a4ff3a385b0471b470606"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2022-50044 (GCVE-0-2022-50044)

Vulnerability from cvelistv5 – Published: 2025-06-18 11:01 – Updated: 2026-05-11 19:11

Title

net: qrtr: start MHI channel after endpoit creation

Summary

In the Linux kernel, the following vulnerability has been resolved: net: qrtr: start MHI channel after endpoit creation MHI channel may generates event/interrupt right after enabling. It may leads to 2 race conditions issues. 1) Such event may be dropped by qcom_mhi_qrtr_dl_callback() at check: if (!qdev || mhi_res->transaction_status) return; Because dev_set_drvdata(&mhi_dev->dev, qdev) may be not performed at this moment. In this situation qrtr-ns will be unable to enumerate services in device. --------------------------------------------------------------- 2) Such event may come at the moment after dev_set_drvdata() and before qrtr_endpoint_register(). In this case kernel will panic with accessing wrong pointer at qcom_mhi_qrtr_dl_callback(): rc = qrtr_endpoint_post(&qdev->ep, mhi_res->buf_addr, mhi_res->bytes_xferd); Because endpoint is not created yet. -------------------------------------------------------------- So move mhi_prepare_for_transfer_autoqueue after endpoint creation to fix it.

Severity

No CVSS data available.

Assigner

Linux mitre root Scorecard

References

3 references

URL	Tags
https://git.kernel.org/stable/c/c682fb70a7dfc25b8…
https://git.kernel.org/stable/c/a1a75f78a29375679…
https://git.kernel.org/stable/c/68a838b84effb7b57…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: a2e2cc0dbb1121dfa875da1c04f3dff966fec162 , < c682fb70a7dfc25b848a4ff3a385b0471b470606 (git) Affected: a2e2cc0dbb1121dfa875da1c04f3dff966fec162 , < a1a75f78a2937567946b1b756f82462874b5ca20 (git) Affected: a2e2cc0dbb1121dfa875da1c04f3dff966fec162 , < 68a838b84effb7b57ba7d50b1863fc6ae35a54ce (git)
Linux	Linux	Affected: 5.11 Unaffected: 0 , < 5.11 (semver) Unaffected: 5.15.63 , ≤ 5.15.* (semver) Unaffected: 5.19.4 , ≤ 5.19.* (semver) Unaffected: 6.0 , ≤ * (original_commit_for_fix)

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JSON

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{
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        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
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              "versionType": "semver"
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: qrtr: start MHI channel after endpoit creation\n\nMHI channel may generates event/interrupt right after enabling.\nIt may leads to 2 race conditions issues.\n\n1)\nSuch event may be dropped by qcom_mhi_qrtr_dl_callback() at check:\n\n\tif (!qdev || mhi_res-\u003etransaction_status)\n\t\treturn;\n\nBecause dev_set_drvdata(\u0026mhi_dev-\u003edev, qdev) may be not performed at\nthis moment. In this situation qrtr-ns will be unable to enumerate\nservices in device.\n---------------------------------------------------------------\n\n2)\nSuch event may come at the moment after dev_set_drvdata() and\nbefore qrtr_endpoint_register(). In this case kernel will panic with\naccessing wrong pointer at qcom_mhi_qrtr_dl_callback():\n\n\trc = qrtr_endpoint_post(\u0026qdev-\u003eep, mhi_res-\u003ebuf_addr,\n\t\t\t\tmhi_res-\u003ebytes_xferd);\n\nBecause endpoint is not created yet.\n--------------------------------------------------------------\nSo move mhi_prepare_for_transfer_autoqueue after endpoint creation\nto fix it."
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}

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.

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The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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