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GHSA-4W99-C287-2JVJ

Vulnerability from github – Published: 2025-12-09 03:31 – Updated: 2025-12-09 03:31

Details

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

mmc: core: Fix kernel panic when remove non-standard SDIO card

SDIO tuple is only allocated for standard SDIO card, especially it causes memory corruption issues when the non-standard SDIO card has removed, which is because the card device's reference counter does not increase for it at sdio_init_func(), but all SDIO card device reference counter gets decreased at sdio_release_func().

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{
  "affected": [],
  "aliases": [
    "CVE-2022-50640"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-12-09T01:16:46Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmmc: core: Fix kernel panic when remove non-standard SDIO card\n\nSDIO tuple is only allocated for standard SDIO card, especially it causes\nmemory corruption issues when the non-standard SDIO card has removed, which\nis because the card device\u0027s reference counter does not increase for it at\nsdio_init_func(), but all SDIO card device reference counter gets decreased\nat sdio_release_func().",
  "id": "GHSA-4w99-c287-2jvj",
  "modified": "2025-12-09T03:31:09Z",
  "published": "2025-12-09T03:31:09Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-50640"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1e8cd93ae536581562bab4e1d8c5315bbc2548bf"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1fb79478695d92bab1c120ad3dad05252b02a29d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/66d461a92f32b6995b630625d350259b6b1f961b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7a09c64b7da0abdec3919812e3d93ecc44069ed0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8bf037279b5869ae9331c42bb1527d2680ebba96"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9972e6b404884adae9eec7463e30d9b3c9a70b18"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b3275dde570b6420106a715bb58a0af041b94d95"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b8b2965932e702b21e335ff30e1bb550f5a23b6f"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2022-50640 (GCVE-0-2022-50640)

Vulnerability from cvelistv5 – Published: 2025-12-09 00:00 – Updated: 2026-05-11 19:22

Title

mmc: core: Fix kernel panic when remove non-standard SDIO card

Summary

In the Linux kernel, the following vulnerability has been resolved: mmc: core: Fix kernel panic when remove non-standard SDIO card SDIO tuple is only allocated for standard SDIO card, especially it causes memory corruption issues when the non-standard SDIO card has removed, which is because the card device's reference counter does not increase for it at sdio_init_func(), but all SDIO card device reference counter gets decreased at sdio_release_func().

Severity

No CVSS data available.

Assigner

Linux mitre root Scorecard

References

8 references

URL	Tags
https://git.kernel.org/stable/c/b8b2965932e702b21…
https://git.kernel.org/stable/c/b3275dde570b64201…
https://git.kernel.org/stable/c/1fb79478695d92bab…
https://git.kernel.org/stable/c/7a09c64b7da0abdec…
https://git.kernel.org/stable/c/8bf037279b5869ae9…
https://git.kernel.org/stable/c/1e8cd93ae53658156…
https://git.kernel.org/stable/c/66d461a92f32b6995…
https://git.kernel.org/stable/c/9972e6b404884adae…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 6f51be3d37dff73cf8db771df4169f4c2f1cbf66 , < b8b2965932e702b21e335ff30e1bb550f5a23b6f (git) Affected: 6f51be3d37dff73cf8db771df4169f4c2f1cbf66 , < b3275dde570b6420106a715bb58a0af041b94d95 (git) Affected: 6f51be3d37dff73cf8db771df4169f4c2f1cbf66 , < 1fb79478695d92bab1c120ad3dad05252b02a29d (git) Affected: 6f51be3d37dff73cf8db771df4169f4c2f1cbf66 , < 7a09c64b7da0abdec3919812e3d93ecc44069ed0 (git) Affected: 6f51be3d37dff73cf8db771df4169f4c2f1cbf66 , < 8bf037279b5869ae9331c42bb1527d2680ebba96 (git) Affected: 6f51be3d37dff73cf8db771df4169f4c2f1cbf66 , < 1e8cd93ae536581562bab4e1d8c5315bbc2548bf (git) Affected: 6f51be3d37dff73cf8db771df4169f4c2f1cbf66 , < 66d461a92f32b6995b630625d350259b6b1f961b (git) Affected: 6f51be3d37dff73cf8db771df4169f4c2f1cbf66 , < 9972e6b404884adae9eec7463e30d9b3c9a70b18 (git)
Linux	Linux	Affected: 2.6.36 Unaffected: 0 , < 2.6.36 (semver) Unaffected: 4.9.332 , ≤ 4.9.* (semver) Unaffected: 4.14.298 , ≤ 4.14.* (semver) Unaffected: 4.19.264 , ≤ 4.19.* (semver) Unaffected: 5.4.223 , ≤ 5.4.* (semver) Unaffected: 5.10.153 , ≤ 5.10.* (semver) Unaffected: 5.15.77 , ≤ 5.15.* (semver) Unaffected: 6.0.7 , ≤ 6.0.* (semver) Unaffected: 6.1 , ≤ * (original_commit_for_fix)

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        {
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          "programFiles": [
            "drivers/mmc/core/sdio_bus.c"
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              "status": "unaffected",
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              "versionType": "semver"
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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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
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GHSA-4W99-C287-2JVJ

CVE-2022-50640 (GCVE-0-2022-50640)

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