{
  "cveId": "CVE-2022-49820",
  "url": "https://patchblox.com/security/cve/CVE-2022-49820",
  "summary": "CVE-2022-49820 is fixed in linux on 1 platform, first by DEBIAN-CVE-2022-49820, released May 1, 2025. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  mctp i2c: don\u0027t count unused / invalid keys for...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  mctp i2c: don\u0027t count unused / invalid keys for flow release  We\u0027re currently hitting the WARN_ON in mctp_i2c_flow_release:      if (midev-\u003Erelease_count \u003E midev-\u003Ei2c_lock_count) {         WARN_ONCE(1, \u0022release count overflow\u0022);  This may be hit if we expire a flow before sending the first packet it contains - as we will not be pairing the increment of release_count (performed on flow release) with the i2c lock operation (only performed on actual TX).  To fix this, only release a flow if we\u0027ve encountered it previously (ie, dev_flow_state does not indicate NEW), as we will mark the flow as ACTIVE at the same time as accounting for the i2c lock operation. We also need to add an INVALID flow state, to indicate when we\u0027ve done the release.",
  "published": "2025-05-01T15:16:05Z",
  "severity": "medium",
  "cvss": 5.5,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
  "epss": 0.0017,
  "epssPercentile": 0.06465,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "6.0.10-1",
      "fix": "DEBIAN-CVE-2022-49820",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-49820",
      "released": "2025-05-01T15:16:05Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "6.0.10-1",
      "fix": "DEBIAN-CVE-2022-49820",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-49820",
      "released": "2025-05-01T15:16:05Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "6.0.10-1",
      "fix": "DEBIAN-CVE-2022-49820",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-49820",
      "released": "2025-05-01T15:16:05Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T13:06:02Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}