Vulnerability-Lookup

FKIE_CVE-2023-53866

Vulnerability from fkie_nvd - Published: 2025-12-09 16:17 - Updated: 2026-08-04 10:19

Severity

7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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

References

	URL	Tags
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/37a3eb6054d17676ce2a0bb5dd1fbf7733ecfa7d
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/9a9942cbdb7c3f41452f7bc4a9ff9f0b45eb3651
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/aa9ff6a4955fdba02b54fbc4386db876603703b7

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "sound/soc/soc-compress.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "9a9942cbdb7c3f41452f7bc4a9ff9f0b45eb3651",
              "status": "affected",
              "version": "b7898396f4bbe160f546d0c5e9fa17cca9a7d153",
              "versionType": "git"
            },
            {
              "lessThan": "37a3eb6054d17676ce2a0bb5dd1fbf7733ecfa7d",
              "status": "affected",
              "version": "b7898396f4bbe160f546d0c5e9fa17cca9a7d153",
              "versionType": "git"
            },
            {
              "lessThan": "aa9ff6a4955fdba02b54fbc4386db876603703b7",
              "status": "affected",
              "version": "b7898396f4bbe160f546d0c5e9fa17cca9a7d153",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "sound/soc/soc-compress.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.17"
            },
            {
              "lessThan": "5.17",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.16",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.2.*",
              "status": "unaffected",
              "version": "6.2.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.3",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "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-\u003epcm_mutex isn\u0027t 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."
    }
  ],
  "id": "CVE-2023-53866",
  "lastModified": "2026-08-04T10:19:24.463",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9,
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "type": "Secondary"
      }
    ]
  },
  "published": "2025-12-09T16:17:27.530",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "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"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Deferred"
}

CVE-2023-53866 (GCVE-0-2023-53866)

Vulnerability from cvelistv5 – Published: 2025-12-09 01:30 – Updated: 2026-08-05 09:16

Title

ASoC: soc-compress: Reposition and add pcm_mutex

Summary

Severity

7.8 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Assigner

Linux mitre root

References

3 references

URL	Tags
https://git.kernel.org/stable/c/9a9942cbdb7c3f414…
https://git.kernel.org/stable/c/37a3eb6054d17676c…
https://git.kernel.org/stable/c/aa9ff6a4955fdba02…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: b7898396f4bbe160f546d0c5e9fa17cca9a7d153 , < 9a9942cbdb7c3f41452f7bc4a9ff9f0b45eb3651 (git) Affected: b7898396f4bbe160f546d0c5e9fa17cca9a7d153 , < 37a3eb6054d17676ce2a0bb5dd1fbf7733ecfa7d (git) Affected: b7898396f4bbe160f546d0c5e9fa17cca9a7d153 , < aa9ff6a4955fdba02b54fbc4386db876603703b7 (git)
Linux	Linux	Affected: 5.17 Unaffected: 0 , < 5.17 (semver) Unaffected: 6.1.16 , ≤ 6.1.* (semver) Unaffected: 6.2.3 , ≤ 6.2.* (semver) Unaffected: 6.3 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "sound/soc/soc-compress.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "9a9942cbdb7c3f41452f7bc4a9ff9f0b45eb3651",
              "status": "affected",
              "version": "b7898396f4bbe160f546d0c5e9fa17cca9a7d153",
              "versionType": "git"
            },
            {
              "lessThan": "37a3eb6054d17676ce2a0bb5dd1fbf7733ecfa7d",
              "status": "affected",
              "version": "b7898396f4bbe160f546d0c5e9fa17cca9a7d153",
              "versionType": "git"
            },
            {
              "lessThan": "aa9ff6a4955fdba02b54fbc4386db876603703b7",
              "status": "affected",
              "version": "b7898396f4bbe160f546d0c5e9fa17cca9a7d153",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "sound/soc/soc-compress.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.17"
            },
            {
              "lessThan": "5.17",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.16",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.2.*",
              "status": "unaffected",
              "version": "6.2.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.3",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.16",
                  "versionStartIncluding": "5.17",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.2.3",
                  "versionStartIncluding": "5.17",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.3",
                  "versionStartIncluding": "5.17",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "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-\u003epcm_mutex isn\u0027t 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."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:L - The vulnerable code is reached only through local device nodes \u2014 `open()`/`close()`/`SNDRV_COMPRESS_SET_PARAMS` on `/dev/snd/comprC#D#` and `SNDRV_CTL_IOCTL_ELEM_WRITE` on `/dev/snd/controlC#`. There is no network-facing path into the ASoC DPCM layer.\nAC:L - The attacker drives both sides of the race itself \u2014 one thread opening/closing the compress stream (`card-\u003emutex` only) and another writing a DAPM mixer/mux control to enter `snd_soc_dpcm_runtime_update()` (`pcm_mutex` only) \u2014 with no shared lock and unlimited retries. On `panic_on_warn` kernels a single `open()` of the compress device is deterministically fatal.\nPR:L - An ordinary local account with access to the ALSA device nodes is sufficient; the desktop session user gets these via udev ACLs or the `audio` group, and media processes hold them on Android. No capability, root, or namespace trick is needed.\nUI:N - The attacker opens the compress device and writes the kcontrol from its own processes. No victim action or pre-existing audio session is required.\nS:U - The corruption is confined to kernel heap objects (`struct snd_soc_dpcm`) managed by the same kernel security authority. No VM, IOMMU, or sandbox boundary is crossed.\nC:H - Unlocked traversal of `be_clients` in `dpcm_dapm_stream_event()` and `dpcm_prune_paths()` reads `snd_soc_dpcm` nodes concurrently freed by `dpcm_be_disconnect()`, and dereferences the stale `dpcm-\u003ebe` pointer; with heap grooming the reclaimed slab contents become attacker-readable, and the lockdep splat additionally leaks kernel addresses.\nI:H - The same unsynchronized walks write through freed/stale pointers (`dpcm-\u003estate = SND_SOC_DPCM_LINK_STATE_FREE`, `dpcm_set_be_update_state(dpcm-\u003ebe, \u2026)`), and the `fe_clients` list is mutated by two FEs under different spinlocks, giving list-corruption and use-after-free write primitives usable for control-flow hijack.\nA:H - The originally reported effect is an outright kernel panic (`lockdep_assert_held` WARN with `panic_on_warn`), and the underlying use-after-free/list corruption produces oopses and slab-corruption BUGs on ordinary configurations."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T09:16:27.597Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/9a9942cbdb7c3f41452f7bc4a9ff9f0b45eb3651"
        },
        {
          "url": "https://git.kernel.org/stable/c/37a3eb6054d17676ce2a0bb5dd1fbf7733ecfa7d"
        },
        {
          "url": "https://git.kernel.org/stable/c/aa9ff6a4955fdba02b54fbc4386db876603703b7"
        }
      ],
      "title": "ASoC: soc-compress: Reposition and add pcm_mutex",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2023-53866",
    "datePublished": "2025-12-09T01:30:35.817Z",
    "dateReserved": "2025-12-09T01:27:17.829Z",
    "dateUpdated": "2026-08-05T09:16:27.597Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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FKIE_CVE-2023-53866

CVE-2023-53866 (GCVE-0-2023-53866)

Tags

Sightings

Nomenclature

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