ASoC: qcom: q6apm-lpass-dais: Fix NULL pointer dereference if source graph failed

{
  "id": "b2e686bbf180b2b0d78a7ede03403ee05c85bdcecbcd75932cdf2b6f81aba247",
  "url": "https://osv.dev/vulnerability/CVE-2025-39938",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "ASoC: qcom: q6apm-lpass-dais: Fix NULL pointer dereference if source graph failed",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: ASoC: qcom: q6apm-lpass-dais: Fix NULL pointer dereference if source graph failed If earlier opening of source graph fails (e.g. ADSP rejects due to incorrect audioreach topology), the graph is closed and \"dai_data->graph[dai->id]\" is assigned NULL. Preparing the DAI for sink graph continues though and next call to q6apm_lpass_dai_prepare() receives dai_data->graph[dai->id]=NULL leading to NULL pointer exception: qcom-apm gprsvc:service:2:1: Error (1) Processing 0x01001002 cmd qcom-apm gprsvc:service:2:1: DSP returned error[1001002] 1 q6apm-lpass-dais 30000000.remoteproc:glink-edge:gpr:service@1:bedais: fail to start APM port 78 q6apm-lpass-dais 30000000.remoteproc:glink-edge:gpr:service@1:bedais: ASoC: error at snd_soc_pcm_dai_prepare on TX_CODEC_DMA_TX_3: -22 Unable to handle kernel NULL pointer dereference at virtual address 00000000000000a8 ... Call trace: q6apm_graph_media_format_pcm+0x48/0x120 (P) q6apm_lpass_dai_prepare+0x110/0x1b4 snd_soc_pcm_dai_prepare+0x74/0x108 __soc_pcm_prepare+0x44/0x160 dpcm_be_dai_prepare+0x124/0x1c0",
    "evidence": "osv:CVE-2025-39938",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.1.154",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.6.108",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.12.49",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.16.9",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2025-39938",
      "aliases": [
        "CVE-2025-39938"
      ],
      "affected": [
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              "type": "GIT",
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                {
                  "fixed": "01d1ba106c9e02a2e7d41e07be49031a0ff0ecaa"
                },
                {
                  "fixed": "411f7d4f7038200cdf6d4f71ee31026ebf2dfedb"
                },
                {
                  "fixed": "9c534dbfd1726502abcf0bd393a04214f62c050b"
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                {
                  "fixed": "cc336b242ea7e7a09b3ab9f885341455ca0a3bdb"
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                {
                  "fixed": "68f27f7c7708183e7873c585ded2f1b057ac5b97"
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            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-39938.json"
          }
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        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
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                  "introduced": "5.16.0"
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              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.13.0"
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                {
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          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-39938.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:32.135905245Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/01d1ba106c9e02a2e7d41e07be49031a0ff0ecaa",
        "https://git.kernel.org/stable/c/411f7d4f7038200cdf6d4f71ee31026ebf2dfedb",
        "https://git.kernel.org/stable/c/68f27f7c7708183e7873c585ded2f1b057ac5b97",
        "https://git.kernel.org/stable/c/9c534dbfd1726502abcf0bd393a04214f62c050b",
        "https://git.kernel.org/stable/c/cc336b242ea7e7a09b3ab9f885341455ca0a3bdb",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/39xxx/CVE-2025-39938.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-39938",
        "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/2025/39xxx/CVE-2025-39938.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-39938",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 499232,
  "published_at": "2025-10-04T07:31:01.736+00:00"
}