CVE-2025-39938 (GCVE-0-2025-39938)

Vulnerability from cvelistv5 – Published: 2025-10-04 07:31 – Updated: 2026-05-11 21:39
VLAI
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
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 7033 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 30ad723b93ade607a678698e5947a55a4375c3a1 , < 01d1ba106c9e02a2e7d41e07be49031a0ff0ecaa (git)
Affected: 30ad723b93ade607a678698e5947a55a4375c3a1 , < 411f7d4f7038200cdf6d4f71ee31026ebf2dfedb (git)
Affected: 30ad723b93ade607a678698e5947a55a4375c3a1 , < 9c534dbfd1726502abcf0bd393a04214f62c050b (git)
Affected: 30ad723b93ade607a678698e5947a55a4375c3a1 , < cc336b242ea7e7a09b3ab9f885341455ca0a3bdb (git)
Affected: 30ad723b93ade607a678698e5947a55a4375c3a1 , < 68f27f7c7708183e7873c585ded2f1b057ac5b97 (git)
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Linux Linux Affected: 5.16
Unaffected: 0 , < 5.16 (semver)
Unaffected: 6.1.154 , ≤ 6.1.* (semver)
Unaffected: 6.6.108 , ≤ 6.6.* (semver)
Unaffected: 6.12.49 , ≤ 6.12.* (semver)
Unaffected: 6.16.9 , ≤ 6.16.* (semver)
Unaffected: 6.17 , ≤ * (original_commit_for_fix)
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            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nASoC: qcom: q6apm-lpass-dais: Fix NULL pointer dereference if source graph failed\n\nIf earlier opening of source graph fails (e.g. ADSP rejects due to\nincorrect audioreach topology), the graph is closed and\n\"dai_data-\u003egraph[dai-\u003eid]\" is assigned NULL.  Preparing the DAI for sink\ngraph continues though and next call to q6apm_lpass_dai_prepare()\nreceives dai_data-\u003egraph[dai-\u003eid]=NULL leading to NULL pointer\nexception:\n\n  qcom-apm gprsvc:service:2:1: Error (1) Processing 0x01001002 cmd\n  qcom-apm gprsvc:service:2:1: DSP returned error[1001002] 1\n  q6apm-lpass-dais 30000000.remoteproc:glink-edge:gpr:service@1:bedais: fail to start APM port 78\n  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\n  Unable to handle kernel NULL pointer dereference at virtual address 00000000000000a8\n  ...\n  Call trace:\n   q6apm_graph_media_format_pcm+0x48/0x120 (P)\n   q6apm_lpass_dai_prepare+0x110/0x1b4\n   snd_soc_pcm_dai_prepare+0x74/0x108\n   __soc_pcm_prepare+0x44/0x160\n   dpcm_be_dai_prepare+0x124/0x1c0"
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            "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nASoC: qcom: q6apm-lpass-dais: Correcci\u00f3n de desreferencia de puntero NULL si el grafo de origen fall\u00f3\n\nSi la apertura anterior del grafo de origen falla (p. ej., ADSP rechaza debido a una topolog\u00eda de audioreach incorrecta), el grafo se cierra y \u0027dai_data-\u003egraph[dai-\u003eid]\u0027 se asigna a NULL. Sin embargo, la preparaci\u00f3n del DAI para el grafo de destino contin\u00faa y la siguiente llamada a q6apm_lpass_dai_prepare() recibe dai_data-\u003egraph[dai-\u003eid]=NULL, lo que lleva a una excepci\u00f3n de puntero NULL:\n\n  qcom-apm gprsvc:service:2:1: Error (1) al procesar el comando 0x01001002\n  qcom-apm gprsvc:service:2:1: DSP devolvi\u00f3 el error[1001002] 1\n  q6apm-lpass-dais 30000000.remoteproc:glink-edge:gpr:service@1:bedais: fallo al iniciar el puerto APM 78\n  q6apm-lpass-dais 30000000.remoteproc:glink-edge:gpr:service@1:bedais: ASoC: error en snd_soc_pcm_dai_prepare en TX_CODEC_DMA_TX_3: -22\n  No se puede manejar la desreferencia de puntero NULL del kernel en la direcci\u00f3n virtual 00000000000000a8\n  ...\n  Rastro de llamada:\n   q6apm_graph_media_format_pcm+0x48/0x120 (P)\n   q6apm_lpass_dai_prepare+0x110/0x1b4\n   snd_soc_pcm_dai_prepare+0x74/0x108\n   __soc_pcm_prepare+0x44/0x160\n   dpcm_be_dai_prepare+0x124/0x1c0"
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        "id": "CVE-2025-39938",
        "lastModified": "2026-10-19T21:10:00.160",
        "metrics": {
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                "attackVector": "LOCAL",
                "availabilityImpact": "HIGH",
                "baseScore": 5.5,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                "version": "3.1"
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              "source": "nvd@nist.gov",
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        "published": "2025-10-04T08:15:46.730",
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              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/cc336b242ea7e7a09b3ab9f885341455ca0a3bdb"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Analyzed",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-476"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "None",
      "current_release_date": "2026-06-30T10:34:01+00:00",
      "cve": "CVE-2025-39938",
      "id": "CVE-2025-39938",
      "initial_release_date": "2025-10-04T00:00:00+00:00",
      "product_status:known_not_affected": "274",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: ASoC: qcom: q6apm-lpass-dais: Fix NULL pointer dereference if source graph failed",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-39938.json",
      "version": "3"
    }
  }
}



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Sightings

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Nomenclature

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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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