Vulnerability-Lookup

FKIE_CVE-2025-38486

Vulnerability from fkie_nvd - Published: 2025-07-28 12:15 - Updated: 2026-07-30 06:23

Severity

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

Summary

In the Linux kernel, the following vulnerability has been resolved: soundwire: Revert "soundwire: qcom: Add set_channel_map api support" This reverts commit 7796c97df6b1b2206681a07f3c80f6023a6593d5. This patch broke Dragonboard 845c (sdm845). I see: Unexpected kernel BRK exception at EL1 Internal error: BRK handler: 00000000f20003e8 [#1] SMP pc : qcom_swrm_set_channel_map+0x7c/0x80 [soundwire_qcom] lr : snd_soc_dai_set_channel_map+0x34/0x78 Call trace: qcom_swrm_set_channel_map+0x7c/0x80 [soundwire_qcom] (P) sdm845_dai_init+0x18c/0x2e0 [snd_soc_sdm845] snd_soc_link_init+0x28/0x6c snd_soc_bind_card+0x5f4/0xb0c snd_soc_register_card+0x148/0x1a4 devm_snd_soc_register_card+0x50/0xb0 sdm845_snd_platform_probe+0x124/0x148 [snd_soc_sdm845] platform_probe+0x6c/0xd0 really_probe+0xc0/0x2a4 __driver_probe_device+0x7c/0x130 driver_probe_device+0x40/0x118 __device_attach_driver+0xc4/0x108 bus_for_each_drv+0x8c/0xf0 __device_attach+0xa4/0x198 device_initial_probe+0x18/0x28 bus_probe_device+0xb8/0xbc deferred_probe_work_func+0xac/0xfc process_one_work+0x244/0x658 worker_thread+0x1b4/0x360 kthread+0x148/0x228 ret_from_fork+0x10/0x20 Kernel panic - not syncing: BRK handler: Fatal exception Dan has also reported following issues with the original patch https://lore.kernel.org/all/33fe8fe7-719a-405a-9ed2-d9f816ce1d57@sabinyo.mountain/ Bug #1: The zeroeth element of ctrl->pconfig[] is supposed to be unused. We start counting at 1. However this code sets ctrl->pconfig[0].ch_mask = 128. Bug #2: There are SLIM_MAX_TX_PORTS (16) elements in tx_ch[] array but only QCOM_SDW_MAX_PORTS + 1 (15) in the ctrl->pconfig[] array so it corrupts memory like Yongqin Liu pointed out. Bug 3: Like Jie Gan pointed out, it erases all the tx information with the rx information.

References

	URL	Tags
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/207cea8b72fcbdf4e6db178e54186ed4f1514b3c	Patch
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/834bce6a715ae9a9c4dce7892454a19adf22b013	Patch

Impacted products

Vendor	Product	Version
linux	linux_kernel	*
linux	linux_kernel	6.16
linux	linux_kernel	6.16
linux	linux_kernel	6.16
linux	linux_kernel	6.16
linux	linux_kernel	6.16
linux	linux_kernel	6.16

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/soundwire/qcom.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
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              "versionType": "git"
            },
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              "version": "7796c97df6b1b2206681a07f3c80f6023a6593d5",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/soundwire/qcom.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.15"
            },
            {
              "lessThan": "6.15",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.15.*",
              "status": "unaffected",
              "version": "6.15.8",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.16",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsoundwire: Revert \"soundwire: qcom: Add set_channel_map api support\"\n\nThis reverts commit 7796c97df6b1b2206681a07f3c80f6023a6593d5.\n\nThis patch broke Dragonboard 845c (sdm845). I see:\n\n    Unexpected kernel BRK exception at EL1\n    Internal error: BRK handler: 00000000f20003e8 [#1]  SMP\n    pc : qcom_swrm_set_channel_map+0x7c/0x80 [soundwire_qcom]\n    lr : snd_soc_dai_set_channel_map+0x34/0x78\n    Call trace:\n     qcom_swrm_set_channel_map+0x7c/0x80 [soundwire_qcom] (P)\n     sdm845_dai_init+0x18c/0x2e0 [snd_soc_sdm845]\n     snd_soc_link_init+0x28/0x6c\n     snd_soc_bind_card+0x5f4/0xb0c\n     snd_soc_register_card+0x148/0x1a4\n     devm_snd_soc_register_card+0x50/0xb0\n     sdm845_snd_platform_probe+0x124/0x148 [snd_soc_sdm845]\n     platform_probe+0x6c/0xd0\n     really_probe+0xc0/0x2a4\n     __driver_probe_device+0x7c/0x130\n     driver_probe_device+0x40/0x118\n     __device_attach_driver+0xc4/0x108\n     bus_for_each_drv+0x8c/0xf0\n     __device_attach+0xa4/0x198\n     device_initial_probe+0x18/0x28\n     bus_probe_device+0xb8/0xbc\n     deferred_probe_work_func+0xac/0xfc\n     process_one_work+0x244/0x658\n     worker_thread+0x1b4/0x360\n     kthread+0x148/0x228\n     ret_from_fork+0x10/0x20\n    Kernel panic - not syncing: BRK handler: Fatal exception\n\nDan has also reported following issues with the original patch\nhttps://lore.kernel.org/all/33fe8fe7-719a-405a-9ed2-d9f816ce1d57@sabinyo.mountain/\n\nBug #1:\nThe zeroeth element of ctrl-\u003epconfig[] is supposed to be unused.  We\nstart counting at 1.  However this code sets ctrl-\u003epconfig[0].ch_mask = 128.\n\nBug #2:\nThere are SLIM_MAX_TX_PORTS (16) elements in tx_ch[] array but only\nQCOM_SDW_MAX_PORTS + 1 (15) in the ctrl-\u003epconfig[] array so it corrupts\nmemory like Yongqin Liu pointed out.\n\nBug 3:\nLike Jie Gan pointed out, it erases all the tx information with the rx\ninformation."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: soundwire: Revertir \"soundwire: qcom: A\u00f1adir compatibilidad con la API set_channel_map\". Esto revierte el commit 7796c97df6b1b2206681a07f3c80f6023a6593d5. Este parche interrumpi\u00f3 la versi\u00f3n Dragonboard 845c (sdm845). Veo: Excepci\u00f3n BRK de kernel inesperada en EL1 Error interno: BRK handler: 00000000f20003e8 [#1] SMP pc : qcom_swrm_set_channel_map+0x7c/0x80 [soundwire_qcom] lr : snd_soc_dai_set_channel_map+0x34/0x78 Call trace: qcom_swrm_set_channel_map+0x7c/0x80 [soundwire_qcom] (P) sdm845_dai_init+0x18c/0x2e0 [snd_soc_sdm845] snd_soc_link_init+0x28/0x6c snd_soc_bind_card+0x5f4/0xb0c snd_soc_register_card+0x148/0x1a4 devm_snd_soc_register_card+0x50/0xb0 sdm845_snd_platform_probe+0x124/0x148 [snd_soc_sdm845] platform_probe+0x6c/0xd0 really_probe+0xc0/0x2a4 __driver_probe_device+0x7c/0x130 driver_probe_device+0x40/0x118 __device_attach_driver+0xc4/0x108 bus_for_each_drv+0x8c/0xf0 __device_attach+0xa4/0x198 device_initial_probe+0x18/0x28 bus_probe_device+0xb8/0xbc deferred_probe_work_func+0xac/0xfc process_one_work+0x244/0x658 worker_thread+0x1b4/0x360 kthread+0x148/0x228 ret_from_fork+0x10/0x20 Kernel panic - not syncing: BRK handler: Fatal exception Dan has also reported following issues with the original patch https://lore.kernel.org/all/33fe8fe7-719a-405a-9ed2-d9f816ce1d57@sabinyo.mountain/ Bug #1: se supone que el elemento cero de ctrl-\u0026gt;pconfig[] no se utiliza. Empezamos a contar desde 1. Sin embargo, este c\u00f3digo establece ctrl-\u0026gt;pconfig[0].ch_mask = 128. Error n.\u00b0 2: Hay elementos SLIM_MAX_TX_PORTS (16) en la matriz tx_ch[], pero solo QCOM_SDW_MAX_PORTS + 1 (15) en la matriz ctrl-\u0026gt;pconfig[], por lo que corrompe la memoria, como se\u00f1al\u00f3 Yongqin Liu. Error 3: Como se\u00f1al\u00f3 Jie Gan, borra toda la informaci\u00f3n de la transmisi\u00f3n junto con la de la recepci\u00f3n."
    }
  ],
  "id": "CVE-2025-38486",
  "lastModified": "2026-07-30T06:23:20.797",
  "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",
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        "type": "Secondary"
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          "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"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
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  "published": "2025-07-28T12:15:30.600",
  "references": [
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  "vulnStatus": "Modified",
  "weaknesses": [
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        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

CVE-2025-38486 (GCVE-0-2025-38486)

Vulnerability from cvelistv5 – Published: 2025-07-28 11:21 – Updated: 2026-08-05 12:02

Title

soundwire: Revert "soundwire: qcom: Add set_channel_map api support"

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

2 references

URL	Tags
https://git.kernel.org/stable/c/207cea8b72fcbdf4e…
https://git.kernel.org/stable/c/834bce6a715ae9a9c…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 7796c97df6b1b2206681a07f3c80f6023a6593d5 , < 207cea8b72fcbdf4e6db178e54186ed4f1514b3c (git) Affected: 7796c97df6b1b2206681a07f3c80f6023a6593d5 , < 834bce6a715ae9a9c4dce7892454a19adf22b013 (git)
Linux	Linux	Affected: 6.15 Unaffected: 0 , < 6.15 (semver) Unaffected: 6.15.8 , ≤ 6.15.* (semver) Unaffected: 6.16 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/soundwire/qcom.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "207cea8b72fcbdf4e6db178e54186ed4f1514b3c",
              "status": "affected",
              "version": "7796c97df6b1b2206681a07f3c80f6023a6593d5",
              "versionType": "git"
            },
            {
              "lessThan": "834bce6a715ae9a9c4dce7892454a19adf22b013",
              "status": "affected",
              "version": "7796c97df6b1b2206681a07f3c80f6023a6593d5",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/soundwire/qcom.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
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              "version": "6.15"
            },
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              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
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              "version": "6.15.8",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.16",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.15.8",
                  "versionStartIncluding": "6.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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              ],
              "negate": false,
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            }
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        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsoundwire: Revert \"soundwire: qcom: Add set_channel_map api support\"\n\nThis reverts commit 7796c97df6b1b2206681a07f3c80f6023a6593d5.\n\nThis patch broke Dragonboard 845c (sdm845). I see:\n\n    Unexpected kernel BRK exception at EL1\n    Internal error: BRK handler: 00000000f20003e8 [#1]  SMP\n    pc : qcom_swrm_set_channel_map+0x7c/0x80 [soundwire_qcom]\n    lr : snd_soc_dai_set_channel_map+0x34/0x78\n    Call trace:\n     qcom_swrm_set_channel_map+0x7c/0x80 [soundwire_qcom] (P)\n     sdm845_dai_init+0x18c/0x2e0 [snd_soc_sdm845]\n     snd_soc_link_init+0x28/0x6c\n     snd_soc_bind_card+0x5f4/0xb0c\n     snd_soc_register_card+0x148/0x1a4\n     devm_snd_soc_register_card+0x50/0xb0\n     sdm845_snd_platform_probe+0x124/0x148 [snd_soc_sdm845]\n     platform_probe+0x6c/0xd0\n     really_probe+0xc0/0x2a4\n     __driver_probe_device+0x7c/0x130\n     driver_probe_device+0x40/0x118\n     __device_attach_driver+0xc4/0x108\n     bus_for_each_drv+0x8c/0xf0\n     __device_attach+0xa4/0x198\n     device_initial_probe+0x18/0x28\n     bus_probe_device+0xb8/0xbc\n     deferred_probe_work_func+0xac/0xfc\n     process_one_work+0x244/0x658\n     worker_thread+0x1b4/0x360\n     kthread+0x148/0x228\n     ret_from_fork+0x10/0x20\n    Kernel panic - not syncing: BRK handler: Fatal exception\n\nDan has also reported following issues with the original patch\nhttps://lore.kernel.org/all/33fe8fe7-719a-405a-9ed2-d9f816ce1d57@sabinyo.mountain/\n\nBug #1:\nThe zeroeth element of ctrl-\u003epconfig[] is supposed to be unused.  We\nstart counting at 1.  However this code sets ctrl-\u003epconfig[0].ch_mask = 128.\n\nBug #2:\nThere are SLIM_MAX_TX_PORTS (16) elements in tx_ch[] array but only\nQCOM_SDW_MAX_PORTS + 1 (15) in the ctrl-\u003epconfig[] array so it corrupts\nmemory like Yongqin Liu pointed out.\n\nBug 3:\nLike Jie Gan pointed out, it erases all the tx information with the rx\ninformation."
        }
      ],
      "metrics": [
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            "baseSeverity": "HIGH",
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            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:L - The vulnerable `set_channel_map` op is reached only through the local ALSA PCM character device (`/dev/snd/pcmC*D*`) via the Qualcomm machine driver\u0027s `.startup` callback, or automatically during platform driver probe; there is no remote or adjacent-network path into `drivers/soundwire/qcom.c`.\nAC:L - The overflow is fully deterministic \u2014 `sdm845_dai_init()` unconditionally passes a hardcoded count of 16 into a 15-element array on every card bind, and the wrong-index writes occur on every PCM open \u2014 with no race, no memory-layout dependency, and no condition outside the attacker\u0027s control.\nPR:L - An unprivileged local account with access to the ALSA PCM nodes (the audio group on the Android/embedded/Snapdragon-laptop platforms that ship this controller) reaches `qcom_swrm_set_channel_map()` simply by opening a SoundWire-backed stream; the probe-time out-of-bounds write requires no privileges at all, so low privilege is the upper bound of what is needed.\nUI:N - The attacker\u0027s own process performs the PCM open that drives the corruption, and the probe-path out-of-bounds write and resulting panic occur automatically during boot with no action from any other user or administrator.\nS:U - The overflowed `pconfig[]` array, the clobbered `sruntime[]` pointer array and the misprogrammed SoundWire port registers all belong to the kernel\u0027s own security authority; no VM, IOMMU or sandbox boundary is crossed.\nC:H - The out-of-bounds byte lands inside the adjacent `struct sdw_stream_runtime *sruntime[]`, corrupting a kernel pointer that `qcom_swrm_hw_params()` dereferences and iterates (`stream-\u003emaster_list`, `m_rt-\u003ebus-\u003eid`, per-port `ch_mask`), turning the write into a wild-pointer read of arbitrary kernel memory whose values are then programmed into device registers.\nI:H - `qcom_swrm_set_channel_map()` performs an unbounded out-of-bounds write past `ctrl-\u003epconfig[]` into adjacent driver state, and additionally writes attacker-influenced channel masks into the wrong port slots which `qcom_swrm_port_enable()` commits straight to the SoundWire hardware control registers.\nA:H - The reported and reproducible outcome is a fatal kernel panic (\"Unexpected kernel BRK exception at EL1 ... Kernel panic - not syncing\") in `qcom_swrm_set_channel_map()` during probe, leaving affected Qualcomm boards unbootable; the corrupted `sruntime` pointer additionally oopses when dereferenced during stream setup."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T12:02:18.718Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/207cea8b72fcbdf4e6db178e54186ed4f1514b3c"
        },
        {
          "url": "https://git.kernel.org/stable/c/834bce6a715ae9a9c4dce7892454a19adf22b013"
        }
      ],
      "title": "soundwire: Revert \"soundwire: qcom: Add set_channel_map api support\"",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-38486",
    "datePublished": "2025-07-28T11:21:50.349Z",
    "dateReserved": "2025-04-16T04:51:24.021Z",
    "dateUpdated": "2026-08-05T12:02:18.718Z",
    "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.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

FKIE_CVE-2025-38486

CVE-2025-38486 (GCVE-0-2025-38486)

Tags

Sightings

Nomenclature

Related by attack behaviour