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CVE-2023-53866

Estado: AplazadaAlta (7.8)—

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".

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.

So, I reposition and add pcm_mutex to resolve lockdep error.

Detalles técnicos trazas, registros y código del informe original
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);
	...
}

[  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+0x34/0x44
[  414.528053][ T2179]  path_openat+0x914/0xb08
[  414.528062][ T2179]  do_filp_open+0xc0/0x170
[  414.528068][ T2179]  do_sys_openat2+0x94/0x18c
[  414.528076][ T2179]  __arm64_sys_openat+0x78/0xa4
[  414.528084][ T2179]  invoke_syscall+0x48/0x10c
[  414.528094][ T2179]  el0_svc_common+0xbc/0x104
[  414.528099][ T2179]  do_el0_svc+0x34/0xd8
[  414.528103][ T2179]  el0_svc+0x34/0xc4
[  414.528125][ T2179]  el0t_64_sync_handler+0x8c/0xfc
[  414.528133][ T2179]  el0t_64_sync+0x1a0/0x1a4
[  414.528142][ T2179] Kernel panic - not syncing: panic_on_warn set ...

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

Vulnerabilidad local en kernel Linux (AV:L, PR:L) que permite DoS mediante pánico del kernel sin interacción del usuario (UI:N). Puede escalarse si se combina con privesc, pero el impacto directo es negación de servicio.

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Threat Intelligence ProgramFilter Network TrafficExecution PreventionApplication Isolation and SandboxingExploit ProtectionUpdate Software

Tecnologías afectadas (1)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Linux — Linux KernelAI

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2023-53866",
  "cveTags": [],
  "metrics": {
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.8,
          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 1.8
      }
    ]
  },
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "b7898396f4bbe160f546d0c5e9fa17cca9a7d153",
              "lessThan": "9a9942cbdb7c3f41452f7bc4a9ff9f0b45eb3651",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "b7898396f4bbe160f546d0c5e9fa17cca9a7d153",
              "lessThan": "37a3eb6054d17676ce2a0bb5dd1fbf7733ecfa7d",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "b7898396f4bbe160f546d0c5e9fa17cca9a7d153",
              "lessThan": "aa9ff6a4955fdba02b54fbc4386db876603703b7",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "sound/soc/soc-compress.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.17"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "5.17",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "6.1.16",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "status": "unaffected",
              "version": "6.2.3",
              "versionType": "semver",
              "lessThanOrEqual": "6.2.*"
            },
            {
              "status": "unaffected",
              "version": "6.3",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "sound/soc/soc-compress.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2025-12-09T16:17:27.530",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/37a3eb6054d17676ce2a0bb5dd1fbf7733ecfa7d",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/9a9942cbdb7c3f41452f7bc4a9ff9f0b45eb3651",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/aa9ff6a4955fdba02b54fbc4386db876603703b7",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Deferred",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nASoC: soc-compress: Reposition and add pcm_mutex\n\nIf panic_on_warn is set and compress stream(DPCM) is started,\nthen kernel panic occurred because card->pcm_mutex isn't held appropriately.\nIn the following functions, warning were issued at this line\n\"snd_soc_dpcm_mutex_assert_held\".\n\nstatic int dpcm_be_connect(struct snd_soc_pcm_runtime *fe,\n\t\tstruct snd_soc_pcm_runtime *be, int stream)\n{\n\t...\n\tsnd_soc_dpcm_mutex_assert_held(fe);\n\t...\n}\n\nvoid dpcm_be_disconnect(struct snd_soc_pcm_runtime *fe, int stream)\n{\n\t...\n\tsnd_soc_dpcm_mutex_assert_held(fe);\n\t...\n}\n\nvoid snd_soc_runtime_action(struct snd_soc_pcm_runtime *rtd,\n\t\t\t    int stream, int action)\n{\n\t...\n\tsnd_soc_dpcm_mutex_assert_held(rtd);\n\t...\n}\n\nint dpcm_dapm_stream_event(struct snd_soc_pcm_runtime *fe, int dir,\n\tint event)\n{\n\t...\n\tsnd_soc_dpcm_mutex_assert_held(fe);\n\t...\n}\n\nThese functions are called by soc_compr_set_params_fe, soc_compr_open_fe\nand soc_compr_free_fe\nwithout pcm_mutex locking. And this is call stack.\n\n[  414.527841][ T2179] pc : dpcm_process_paths+0x5a4/0x750\n[  414.527848][ T2179] lr : dpcm_process_paths+0x37c/0x750\n[  414.527945][ T2179] Call trace:\n[  414.527949][ T2179]  dpcm_process_paths+0x5a4/0x750\n[  414.527955][ T2179]  soc_compr_open_fe+0xb0/0x2cc\n[  414.527972][ T2179]  snd_compr_open+0x180/0x248\n[  414.527981][ T2179]  snd_open+0x15c/0x194\n[  414.528003][ T2179]  chrdev_open+0x1b0/0x220\n[  414.528023][ T2179]  do_dentry_open+0x30c/0x594\n[  414.528045][ T2179]  vfs_open+0x34/0x44\n[  414.528053][ T2179]  path_openat+0x914/0xb08\n[  414.528062][ T2179]  do_filp_open+0xc0/0x170\n[  414.528068][ T2179]  do_sys_openat2+0x94/0x18c\n[  414.528076][ T2179]  __arm64_sys_openat+0x78/0xa4\n[  414.528084][ T2179]  invoke_syscall+0x48/0x10c\n[  414.528094][ T2179]  el0_svc_common+0xbc/0x104\n[  414.528099][ T2179]  do_el0_svc+0x34/0xd8\n[  414.528103][ T2179]  el0_svc+0x34/0xc4\n[  414.528125][ T2179]  el0t_64_sync_handler+0x8c/0xfc\n[  414.528133][ T2179]  el0t_64_sync+0x1a0/0x1a4\n[  414.528142][ T2179] Kernel panic - not syncing: panic_on_warn set ...\n\nSo, I reposition and add pcm_mutex to resolve lockdep error."
    }
  ],
  "lastModified": "2026-08-04T10:19:24.463",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}