ALSA: pcm: Check for null pointer of pointer substream before dereferencing it

{
  "id": "56e3b02088fb927b8b83e40721ec480c0e58b538d357d2ac1c17412df8bede49",
  "url": "https://osv.dev/vulnerability/CVE-2022-49498",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "ALSA: pcm: Check for null pointer of pointer substream before dereferencing it",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: ALSA: pcm: Check for null pointer of pointer substream before dereferencing it Pointer substream is being dereferenced on the assignment of pointer card before substream is being null checked with the macro PCM_RUNTIME_CHECK. Although PCM_RUNTIME_CHECK calls BUG_ON, it still is useful to perform the the pointer check before card is assigned.",
    "evidence": "osv:CVE-2022-49498",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "5.10.121",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "5.15.46",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "5.17.14",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "5.18.3",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "medium",
    "structured": {
      "id": "CVE-2022-49498",
      "aliases": [
        "CVE-2022-49498"
      ],
      "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": "95b30a4312545f2dde9db12bf6a425f35d5a0d77"
                },
                {
                  "fixed": "b2421a196cb0911ea95aec1050a0b830464c8fa6"
                }
              ]
            },
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "d4cfb30fce03093ad944e0b44bd8f40bdad5330e"
                },
                {
                  "fixed": "f2c68c52898f623fe84518da4606538d193b0cca"
                },
                {
                  "fixed": "7784d22f81a29df2ec57ca90d54f93a35cbcd1a2"
                },
                {
                  "fixed": "1f2e28857be1e5c7db39bbc221332215fc5467e3"
                },
                {
                  "fixed": "b41ef7ad9238c22aa2e142f5ce4ce1a1a0d48123"
                },
                {
                  "fixed": "011b559be832194f992f73d6c0d5485f5925a10b"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-49498.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.6.0"
                },
                {
                  "fixed": "5.10.121"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.11.0"
                },
                {
                  "fixed": "5.15.46"
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            },
            {
              "type": "ECOSYSTEM",
              "events": [
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                  "introduced": "5.16.0"
                },
                {
                  "fixed": "5.17.14"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.18.0"
                },
                {
                  "fixed": "5.18.3"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-49498.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:33.020927635Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/011b559be832194f992f73d6c0d5485f5925a10b",
        "https://git.kernel.org/stable/c/1f2e28857be1e5c7db39bbc221332215fc5467e3",
        "https://git.kernel.org/stable/c/7784d22f81a29df2ec57ca90d54f93a35cbcd1a2",
        "https://git.kernel.org/stable/c/b2421a196cb0911ea95aec1050a0b830464c8fa6",
        "https://git.kernel.org/stable/c/b41ef7ad9238c22aa2e142f5ce4ce1a1a0d48123",
        "https://git.kernel.org/stable/c/f2c68c52898f623fe84518da4606538d193b0cca",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49498.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2022-49498",
        "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/2022/49xxx/CVE-2022-49498.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2022-49498",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 499792,
  "published_at": "2025-02-26T02:13:32.895+00:00"
}