FKIE_CVE-2022-50642

Vulnerability from fkie_nvd - Published: 2025-12-09 01:16 - Updated: 2025-12-09 18:37
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
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{
  "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": "2025-12-09T18:37:13.640",
  "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": "Awaiting Analysis"
}


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Detection rules are retrieved from Rulezet.