ASoC: soc-compress: Reposition and add pcm_mutex

{
  "id": "823d9699e2dfe8a894887715d184b572e77c411e17f587cb54151dd5432de18c",
  "url": "https://osv.dev/vulnerability/CVE-2023-53866",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "ASoC: soc-compress: Reposition and add pcm_mutex",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: ASoC: soc-compress: Reposition and add pcm_mutex If panic_on_warn is set and compress stream(DPCM) is started, then kernel panic occurred because card->pcm_mutex isn't held appropriately. In the following functions, warning were issued at this line \"snd_soc_dpcm_mutex_assert_held\". static int dpcm_be_connect(struct snd_soc_pcm_runtime *fe, struct snd_soc_pcm_runtime *be, int stream) { ... snd_soc_dpcm_mutex_assert_held(fe); ... } void dpcm_be_disconnect(struct snd_soc_pcm_runtime *fe, int stream) { ... snd_soc_dpcm_mutex_assert_held(fe); ... } void snd_soc_runtime_action(struct snd_soc_pcm_runtime *rtd, int stream, int action) { ... snd_soc_dpcm_mutex_assert_held(rtd); ... } int dpcm_dapm_stream_event(struct snd_soc_pcm_runtime *fe, int dir, int event) { ... snd_soc_dpcm_mutex_assert_held(fe); ... } These functions are called by soc_compr_set_params_fe, soc_compr_open_fe and soc_compr_free_fe without pcm_mutex locking. And this is call stack. [ 414.527841][ T2179] pc : dpcm_process_paths+0x5a4/0x750 [ 414.527848][ T2179] lr : dpcm_process_paths+0x37c/0x750 [ 414.527945][ T2179] Call trace: [ 414.527949][ T2179] dpcm_process_paths+0x5a4/0x750 [ 414.527955][ T2179] soc_compr_open_fe+0xb0/0x2cc [ 414.527972][ T2179] snd_compr_open+0x180/0x248 [ 414.527981][ T2179] snd_open+0x15c/0x194 [ 414.528003][ T2179] chrdev_open+0x1b0/0x220 [ 414.528023][ T2179] do_dentry_open+0x30c/0x594 [ 414.528045][ T2179] vfs_open+0x3",
    "evidence": "osv:CVE-2023-53866",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.1.16",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.2.3",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "CVE-2023-53866",
      "aliases": [
        "CVE-2023-53866"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
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              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
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                },
                {
                  "fixed": "9a9942cbdb7c3f41452f7bc4a9ff9f0b45eb3651"
                },
                {
                  "fixed": "37a3eb6054d17676ce2a0bb5dd1fbf7733ecfa7d"
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                {
                  "fixed": "aa9ff6a4955fdba02b54fbc4386db876603703b7"
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          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-53866.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.17.0"
                },
                {
                  "fixed": "6.1.16"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.2.0"
                },
                {
                  "fixed": "6.2.3"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-53866.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:50.174877429Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/37a3eb6054d17676ce2a0bb5dd1fbf7733ecfa7d",
        "https://git.kernel.org/stable/c/9a9942cbdb7c3f41452f7bc4a9ff9f0b45eb3651",
        "https://git.kernel.org/stable/c/aa9ff6a4955fdba02b54fbc4386db876603703b7",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53866.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2023-53866",
        "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/2023/53xxx/CVE-2023-53866.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2023-53866",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 518177,
  "published_at": "2025-12-09T01:30:35.817+00:00"
}