FKIE_CVE-2022-50642

Vulnerability from fkie_nvd - Published: 2025-12-09 01:16 - Updated: 2026-06-17 05:23
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved: platform/chrome: cros_ec_typec: zero out stale pointers `cros_typec_get_switch_handles` allocates four pointers when obtaining type-c switch handles. These pointers are all freed if failing to obtain any of them; therefore, pointers in `port` become stale. The stale pointers eventually cause use-after-free or double free in later code paths. Zeroing out all pointer fields after freeing to eliminate these stale pointers.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0ceadb5a3e45f1b81cf54bd496b40a5e50b6bd40
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6613f36a2fa5c69e528bccba8b3d831f759dad2f
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9a8aadcf0b459c1257b9477fd6402e1d5952ae07
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b610758bb3e0674644c1255cdafc2f46b7e05ff9
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/platform/chrome/cros_ec_typec.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "0ceadb5a3e45f1b81cf54bd496b40a5e50b6bd40",
              "status": "affected",
              "version": "f28adb41dab4a2795fd959750df57adffd2bb0be",
              "versionType": "git"
            },
            {
              "lessThan": "b610758bb3e0674644c1255cdafc2f46b7e05ff9",
              "status": "affected",
              "version": "f28adb41dab4a2795fd959750df57adffd2bb0be",
              "versionType": "git"
            },
            {
              "lessThan": "6613f36a2fa5c69e528bccba8b3d831f759dad2f",
              "status": "affected",
              "version": "f28adb41dab4a2795fd959750df57adffd2bb0be",
              "versionType": "git"
            },
            {
              "lessThan": "9a8aadcf0b459c1257b9477fd6402e1d5952ae07",
              "status": "affected",
              "version": "f28adb41dab4a2795fd959750df57adffd2bb0be",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/platform/chrome/cros_ec_typec.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.9"
            },
            {
              "lessThan": "5.9",
              "status": "unaffected",
              "version": "0",
              "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\nplatform/chrome: cros_ec_typec: zero out stale pointers\n\n`cros_typec_get_switch_handles` allocates four pointers when obtaining\ntype-c switch handles. These pointers are all freed if failing to obtain\nany of them; therefore, pointers in `port` become stale. The stale\npointers eventually cause use-after-free or double free in later code\npaths. Zeroing out all pointer fields after freeing to eliminate these\nstale pointers."
    }
  ],
  "id": "CVE-2022-50642",
  "lastModified": "2026-06-17T05:23:55.170",
  "metrics": {},
  "published": "2025-12-09T01:16:46.693",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/0ceadb5a3e45f1b81cf54bd496b40a5e50b6bd40"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/6613f36a2fa5c69e528bccba8b3d831f759dad2f"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/9a8aadcf0b459c1257b9477fd6402e1d5952ae07"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/b610758bb3e0674644c1255cdafc2f46b7e05ff9"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Deferred"
}


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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.

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