CVE-2025-38486 (GCVE-0-2025-38486)
Vulnerability from cvelistv5
Published
2025-07-28 11:21
Modified
2025-07-28 11:21
Severity ?
VLAI Severity ?
EPSS score ?
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
Impacted products
{
"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": [
{
"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"
}
]
}
],
"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:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.16",
"versionStartIncluding": "6.15",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"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."
}
],
"providerMetadata": {
"dateUpdated": "2025-07-28T11:21:50.349Z",
"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": "2025-07-28T11:21:50.349Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1",
"vulnerability-lookup:meta": {
"nvd": "{\"cve\":{\"id\":\"CVE-2025-38486\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-07-28T12:15:30.600\",\"lastModified\":\"2025-07-29T14:14:29.590\",\"vulnStatus\":\"Awaiting Analysis\",\"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.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/207cea8b72fcbdf4e6db178e54186ed4f1514b3c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/834bce6a715ae9a9c4dce7892454a19adf22b013\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
}
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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