can: dev: fix skb drop check

{
  "id": "44f8546daf8f76a0032ba69bf00abf2054573f52a542bd5eb1372bc2108fc2fb",
  "url": "https://osv.dev/vulnerability/CVE-2022-49844",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "can: dev: fix skb drop check",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: can: dev: fix skb drop check In commit a6d190f8c767 (\"can: skb: drop tx skb if in listen only mode\") the priv->ctrlmode element is read even on virtual CAN interfaces that do not create the struct can_priv at startup. This out-of-bounds read may lead to CAN frame drops for virtual CAN interfaces like vcan and vxcan. This patch mainly reverts the original commit and adds a new helper for CAN interface drivers that provide the required information in struct can_priv. [mkl: patch pch_can, too]",
    "evidence": "osv:CVE-2022-49844",
    "products": [
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        "name": {
          "value": "Kernel",
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            "value": "6.0.9",
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    "severity": "high",
    "structured": {
      "id": "CVE-2022-49844",
      "aliases": [
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      "metrics": [
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          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H"
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      "affected": [
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          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
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                  "introduced": "6.0.0"
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          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-49844.json"
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      ],
      "modified": "2026-10-28T02:30:26.895531910Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/386c49fe31ee748e053860b3bac7794a933ac9ac",
        "https://git.kernel.org/stable/c/ae64438be1923e3c1102d90fd41db7afcfaf54cc",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49844.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2022-49844",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
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    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
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  "source_id": "core-osv",
  "document_id": 493176,
  "published_at": "2025-05-01T14:09:58.999+00:00"
}