FKIE_CVE-2022-50618

Vulnerability from fkie_nvd - Published: 2025-12-08 02:15 - Updated: 2026-06-17 05:23
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved: mmc: meson-gx: fix return value check of mmc_add_host() mmc_add_host() may return error, if we ignore its return value, it will lead two issues: 1. The memory that allocated in mmc_alloc_host() is leaked. 2. In the remove() path, mmc_remove_host() will be called to delete device, but it's not added yet, it will lead a kernel crash because of null-ptr-deref in device_del(). Fix this by checking the return value and goto error path which will call mmc_free_host().
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/42343e3c6195e934b9cb4c08b7ff84a3778d77f9
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/64b2c441171febf075bd9632aca579afda8ab9fb
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/90935f16f2650ab7416fa2ffbe5c28cb39cf3f1e
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9e11c6bb745be4e9b325cf96031b4ea34801342d
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e0cfe7aa41f3965f5224affd88afd48c60f6ad1f
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f5506e0bbb25102bd8ef2e1a3b483a0b934e454e
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f5ce76aeddf01ca8f2a80fc37119388d59db7c10
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/mmc/host/meson-gx-mmc.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "f5506e0bbb25102bd8ef2e1a3b483a0b934e454e",
              "status": "affected",
              "version": "51c5d8447bd71b7e539c19c46a03b73c0e91fa66",
              "versionType": "git"
            },
            {
              "lessThan": "9e11c6bb745be4e9b325cf96031b4ea34801342d",
              "status": "affected",
              "version": "51c5d8447bd71b7e539c19c46a03b73c0e91fa66",
              "versionType": "git"
            },
            {
              "lessThan": "64b2c441171febf075bd9632aca579afda8ab9fb",
              "status": "affected",
              "version": "51c5d8447bd71b7e539c19c46a03b73c0e91fa66",
              "versionType": "git"
            },
            {
              "lessThan": "e0cfe7aa41f3965f5224affd88afd48c60f6ad1f",
              "status": "affected",
              "version": "51c5d8447bd71b7e539c19c46a03b73c0e91fa66",
              "versionType": "git"
            },
            {
              "lessThan": "42343e3c6195e934b9cb4c08b7ff84a3778d77f9",
              "status": "affected",
              "version": "51c5d8447bd71b7e539c19c46a03b73c0e91fa66",
              "versionType": "git"
            },
            {
              "lessThan": "f5ce76aeddf01ca8f2a80fc37119388d59db7c10",
              "status": "affected",
              "version": "51c5d8447bd71b7e539c19c46a03b73c0e91fa66",
              "versionType": "git"
            },
            {
              "lessThan": "90935f16f2650ab7416fa2ffbe5c28cb39cf3f1e",
              "status": "affected",
              "version": "51c5d8447bd71b7e539c19c46a03b73c0e91fa66",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/mmc/host/meson-gx-mmc.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.10"
            },
            {
              "lessThan": "4.10",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.270",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.229",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.163",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.86",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.0.*",
              "status": "unaffected",
              "version": "6.0.16",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmmc: meson-gx: fix return value check of mmc_add_host()\n\nmmc_add_host() may return error, if we ignore its return value,\nit will lead two issues:\n1. The memory that allocated in mmc_alloc_host() is leaked.\n2. In the remove() path, mmc_remove_host() will be called to\n   delete device, but it\u0027s not added yet, it will lead a kernel\n   crash because of null-ptr-deref in device_del().\n\nFix this by checking the return value and goto error path which\nwill call mmc_free_host()."
    }
  ],
  "id": "CVE-2022-50618",
  "lastModified": "2026-06-17T05:23:52.630",
  "metrics": {},
  "published": "2025-12-08T02:15:47.590",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/42343e3c6195e934b9cb4c08b7ff84a3778d77f9"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/64b2c441171febf075bd9632aca579afda8ab9fb"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/90935f16f2650ab7416fa2ffbe5c28cb39cf3f1e"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/9e11c6bb745be4e9b325cf96031b4ea34801342d"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/e0cfe7aa41f3965f5224affd88afd48c60f6ad1f"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/f5506e0bbb25102bd8ef2e1a3b483a0b934e454e"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/f5ce76aeddf01ca8f2a80fc37119388d59db7c10"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Deferred"
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





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.


Detection rules are retrieved from Rulezet.