CVE-2025-39674 (GCVE-0-2025-39674)
Vulnerability from cvelistv5
Published
2025-09-05 17:20
Modified
2025-09-29 05:57
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
scsi: ufs: ufs-qcom: Fix ESI null pointer dereference
ESI/MSI is a performance optimization feature that provides dedicated
interrupts per MCQ hardware queue. This is optional feature and UFS MCQ
should work with and without ESI feature.
Commit e46a28cea29a ("scsi: ufs: qcom: Remove the MSI descriptor abuse")
brings a regression in ESI (Enhanced System Interrupt) configuration that
causes a null pointer dereference when Platform MSI allocation fails.
The issue occurs in when platform_device_msi_init_and_alloc_irqs() in
ufs_qcom_config_esi() fails (returns -EINVAL) but the current code uses
__free() macro for automatic cleanup free MSI resources that were never
successfully allocated.
Unable to handle kernel NULL pointer dereference at virtual
address 0000000000000008
Call trace:
mutex_lock+0xc/0x54 (P)
platform_device_msi_free_irqs_all+0x1c/0x40
ufs_qcom_config_esi+0x1d0/0x220 [ufs_qcom]
ufshcd_config_mcq+0x28/0x104
ufshcd_init+0xa3c/0xf40
ufshcd_pltfrm_init+0x504/0x7d4
ufs_qcom_probe+0x20/0x58 [ufs_qcom]
Fix by restructuring the ESI configuration to try MSI allocation first,
before any other resource allocation and instead use explicit cleanup
instead of __free() macro to avoid cleanup of unallocated resources.
Tested on SM8750 platform with MCQ enabled, both with and without
Platform ESI support.
References
Impacted products
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/ufs/host/ufs-qcom.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
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"status": "affected",
"version": "e46a28cea29a0ca7d51c811acccf5d119b40c745",
"versionType": "git"
},
{
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"status": "affected",
"version": "e46a28cea29a0ca7d51c811acccf5d119b40c745",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"drivers/ufs/host/ufs-qcom.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "6.16"
},
{
"lessThan": "6.16",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.16.*",
"status": "unaffected",
"version": "6.16.4",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.17",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.16.4",
"versionStartIncluding": "6.16",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.17",
"versionStartIncluding": "6.16",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: ufs: ufs-qcom: Fix ESI null pointer dereference\n\nESI/MSI is a performance optimization feature that provides dedicated\ninterrupts per MCQ hardware queue. This is optional feature and UFS MCQ\nshould work with and without ESI feature.\n\nCommit e46a28cea29a (\"scsi: ufs: qcom: Remove the MSI descriptor abuse\")\nbrings a regression in ESI (Enhanced System Interrupt) configuration that\ncauses a null pointer dereference when Platform MSI allocation fails.\n\nThe issue occurs in when platform_device_msi_init_and_alloc_irqs() in\nufs_qcom_config_esi() fails (returns -EINVAL) but the current code uses\n__free() macro for automatic cleanup free MSI resources that were never\nsuccessfully allocated.\n\nUnable to handle kernel NULL pointer dereference at virtual\naddress 0000000000000008\n\n Call trace:\n mutex_lock+0xc/0x54 (P)\n platform_device_msi_free_irqs_all+0x1c/0x40\n ufs_qcom_config_esi+0x1d0/0x220 [ufs_qcom]\n ufshcd_config_mcq+0x28/0x104\n ufshcd_init+0xa3c/0xf40\n ufshcd_pltfrm_init+0x504/0x7d4\n ufs_qcom_probe+0x20/0x58 [ufs_qcom]\n\nFix by restructuring the ESI configuration to try MSI allocation first,\nbefore any other resource allocation and instead use explicit cleanup\ninstead of __free() macro to avoid cleanup of unallocated resources.\n\nTested on SM8750 platform with MCQ enabled, both with and without\nPlatform ESI support."
}
],
"providerMetadata": {
"dateUpdated": "2025-09-29T05:57:09.395Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/aaf17a35a59572c8b29372883619c3dbb0ebb50a"
},
{
"url": "https://git.kernel.org/stable/c/6300d5c5438724c0876828da2f6e2c1a661871fc"
}
],
"title": "scsi: ufs: ufs-qcom: Fix ESI null pointer dereference",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2025-39674",
"datePublished": "2025-09-05T17:20:39.859Z",
"dateReserved": "2025-04-16T07:20:57.112Z",
"dateUpdated": "2025-09-29T05:57:09.395Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1",
"vulnerability-lookup:meta": {
"nvd": "{\"cve\":{\"id\":\"CVE-2025-39674\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-09-05T18:15:43.387\",\"lastModified\":\"2025-09-08T16:25:38.810\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nscsi: ufs: ufs-qcom: Fix ESI null pointer dereference\\n\\nESI/MSI is a performance optimization feature that provides dedicated\\ninterrupts per MCQ hardware queue. This is optional feature and UFS MCQ\\nshould work with and without ESI feature.\\n\\nCommit e46a28cea29a (\\\"scsi: ufs: qcom: Remove the MSI descriptor abuse\\\")\\nbrings a regression in ESI (Enhanced System Interrupt) configuration that\\ncauses a null pointer dereference when Platform MSI allocation fails.\\n\\nThe issue occurs in when platform_device_msi_init_and_alloc_irqs() in\\nufs_qcom_config_esi() fails (returns -EINVAL) but the current code uses\\n__free() macro for automatic cleanup free MSI resources that were never\\nsuccessfully allocated.\\n\\nUnable to handle kernel NULL pointer dereference at virtual\\naddress 0000000000000008\\n\\n Call trace:\\n mutex_lock+0xc/0x54 (P)\\n platform_device_msi_free_irqs_all+0x1c/0x40\\n ufs_qcom_config_esi+0x1d0/0x220 [ufs_qcom]\\n ufshcd_config_mcq+0x28/0x104\\n ufshcd_init+0xa3c/0xf40\\n ufshcd_pltfrm_init+0x504/0x7d4\\n ufs_qcom_probe+0x20/0x58 [ufs_qcom]\\n\\nFix by restructuring the ESI configuration to try MSI allocation first,\\nbefore any other resource allocation and instead use explicit cleanup\\ninstead of __free() macro to avoid cleanup of unallocated resources.\\n\\nTested on SM8750 platform with MCQ enabled, both with and without\\nPlatform ESI support.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/6300d5c5438724c0876828da2f6e2c1a661871fc\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/aaf17a35a59572c8b29372883619c3dbb0ebb50a\",\"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.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- 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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