can: ctucanfd: handle skb allocation failure

{
  "id": "56941d23d05889f8d2a1dd0bab5cc133cfd70faff098d951354b0b0e6ac09a70",
  "url": "https://osv.dev/vulnerability/CVE-2025-21775",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "can: ctucanfd: handle skb allocation failure",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: can: ctucanfd: handle skb allocation failure If skb allocation fails, the pointer to struct can_frame is NULL. This is actually handled everywhere inside ctucan_err_interrupt() except for the only place. Add the missed NULL check. Found by Linux Verification Center (linuxtesting.org) with SVACE static analysis tool.",
    "evidence": "osv:CVE-2025-21775",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.1.129",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.6.79",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.12.16",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.13.4",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "medium",
    "structured": {
      "id": "CVE-2025-21775",
      "aliases": [
        "CVE-2025-21775"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "2dcb8e8782d8e4c38903bf37b1a24d3ffd193da7"
                },
                {
                  "fixed": "84b9ac59978a6a4e0812d1c938fad97306272cef"
                },
                {
                  "fixed": "e505b83b9ee6aa0ae2f4395f573a66579ae403fb"
                },
                {
                  "fixed": "b0e592dd46a0a952b41c3bf6c963afdd6a42b526"
                },
                {
                  "fixed": "e7e2e2318b1f085044126ba553a4e619842fc36d"
                },
                {
                  "fixed": "9bd24927e3eeb85642c7baa3b28be8bea6c2a078"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-21775.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.19.0"
                },
                {
                  "fixed": "6.1.129"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.2.0"
                },
                {
                  "fixed": "6.6.79"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.7.0"
                },
                {
                  "fixed": "6.12.16"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.13.0"
                },
                {
                  "fixed": "6.13.4"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-21775.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:46.177936519Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/84b9ac59978a6a4e0812d1c938fad97306272cef",
        "https://git.kernel.org/stable/c/9bd24927e3eeb85642c7baa3b28be8bea6c2a078",
        "https://git.kernel.org/stable/c/b0e592dd46a0a952b41c3bf6c963afdd6a42b526",
        "https://git.kernel.org/stable/c/e505b83b9ee6aa0ae2f4395f573a66579ae403fb",
        "https://git.kernel.org/stable/c/e7e2e2318b1f085044126ba553a4e619842fc36d",
        "https://lists.debian.org/debian-lts-announce/2025/03/msg00028.html",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/21xxx/CVE-2025-21775.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-21775",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/21xxx/CVE-2025-21775.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-21775",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 514041,
  "published_at": "2025-02-27T02:18:21.019+00:00"
}