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vuln-cve/data/2025/22xxx/CVE-2025-22001.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2025-22001",
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"state": "PUBLISHED",
"assignerShortName": "Linux",
"dateReserved": "2024-12-29T08:45:45.802Z",
"datePublished": "2025-04-03T07:19:04.251Z",
"dateUpdated": "2026-08-05T11:55:56.125Z"
},
"containers": {
"cna": {
"providerMetadata": {
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux",
"dateUpdated": "2026-08-05T11:55:56.125Z"
},
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\naccel/qaic: Fix integer overflow in qaic_validate_req()\n\nThese are u64 variables that come from the user via\nqaic_attach_slice_bo_ioctl(). Use check_add_overflow() to ensure that\nthe math doesn't have an integer wrapping bug."
}
],
"metrics": [
{
"cvssV3_1": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"baseScore": 7.8,
"baseSeverity": "HIGH"
},
"scenarios": [
{
"lang": "en",
"value": "AV:L - The bug is reached through DRM_IOCTL_QAIC_ATTACH_SLICE_BO on the /dev/accel/accelN character device, requiring local access to the machine hosting the Qualcomm Cloud AI 100 accelerator. There is no network-facing path to this code.\nAC:L - The attacker directly supplies the wrapping offset/size pair in the ioctl payload and the overflow is deterministic arithmetic with no race, timing, or memory-layout precondition. A single ioctl pair (attach slice, then execute BO) reliably programs the oversized DMA descriptor.\nPR:L - No capability check exists anywhere in drivers/accel/qaic/, and the ioctl is registered with flags 0 so drm_ioctl_permit() applies no root or auth gate; only an open fd on the accel node is needed. On the multi-tenant inference hosts this accelerator targets, that node is granted to ordinary unprivileged workload users.\nUI:N - The attacker performs the entire sequence itself with two ioctls on a device it opened. No victim action or cooperation is involved.\nS:U - The corruption occurs in host kernel memory under the same kernel security authority; this is a standard local kernel privilege-escalation primitive rather than a VM or IOMMU-boundary escape.\nC:H - A DMA_TO_DEVICE slice with the wrapped length makes the device read up to ~4 GiB of host memory past the buffer and copy it into accelerator memory, which the same unprivileged user can read back, yielding large-scale disclosure of kernel and other tenants' data.\nI:H - A DMA_FROM_DEVICE slice makes the device write ~4 GiB of attacker-controlled data beyond the 8 KiB buffer, giving a wide out-of-bounds write over kernel memory that is readily leveraged into control-flow hijack and privilege escalation.\nA:H - The multi-gigabyte overrun corrupts arbitrary kernel structures and page tables, reliably producing an oops or panic; with an IOMMU present it instead raises DMA faults that wedge or force a reset of the accelerator."
}
]
}
],
"affected": [
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "unaffected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"drivers/accel/qaic/qaic_data.c"
],
"versions": [
{
"version": "ff13be8303336ead5621712f2c55012d738878b5",
"lessThan": "4b2a170c25862ad116bd31be6b9841646b4862e8",
"status": "affected",
"versionType": "git"
},
{
"version": "ff13be8303336ead5621712f2c55012d738878b5",
"lessThan": "b362fc904d264a88b4af20baae9e82491c285e9c",
"status": "affected",
"versionType": "git"
},
{
"version": "ff13be8303336ead5621712f2c55012d738878b5",
"lessThan": "57fae0c505f49bb1e3d5660cd2cc49697ed85f7c",
"status": "affected",
"versionType": "git"
},
{
"version": "ff13be8303336ead5621712f2c55012d738878b5",
"lessThan": "67d15c7aa0864dfd82325c7e7e7d8548b5224c7b",
"status": "affected",
"versionType": "git"
}
]
},
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "affected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"drivers/accel/qaic/qaic_data.c"
],
"versions": [
{
"version": "6.4",
"status": "affected"
},
{
"version": "0",
"lessThan": "6.4",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.6.85",
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.12.21",
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.13.9",
"lessThanOrEqual": "6.13.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.14",
"lessThanOrEqual": "*",
"status": "unaffected",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"operator": "OR",
"negate": false,
"cpeMatch": [
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "6.4",
"versionEndExcluding": "6.6.85"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "6.4",
"versionEndExcluding": "6.12.21"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "6.4",
"versionEndExcluding": "6.13.9"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "6.4",
"versionEndExcluding": "6.14"
}
]
}
]
}
],
"references": [
{
"url": "https://git.kernel.org/stable/c/4b2a170c25862ad116bd31be6b9841646b4862e8"
},
{
"url": "https://git.kernel.org/stable/c/b362fc904d264a88b4af20baae9e82491c285e9c"
},
{
"url": "https://git.kernel.org/stable/c/57fae0c505f49bb1e3d5660cd2cc49697ed85f7c"
},
{
"url": "https://git.kernel.org/stable/c/67d15c7aa0864dfd82325c7e7e7d8548b5224c7b"
}
],
"title": "accel/qaic: Fix integer overflow in qaic_validate_req()",
"x_generator": {
"engine": "bippy-1.2.0"
}
},
"adp": [
{
"problemTypes": [
{
"descriptions": [
{
"type": "CWE",
"cweId": "CWE-190",
"lang": "en",
"description": "CWE-190 Integer Overflow or Wraparound"
}
]
}
],
"metrics": [
{
"cvssV3_1": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 5.5,
"attackVector": "LOCAL",
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"integrityImpact": "NONE",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "LOW",
"confidentialityImpact": "NONE"
}
},
{
"other": {
"type": "ssvc",
"content": {
"timestamp": "2025-10-01T17:10:27.696134Z",
"id": "CVE-2025-22001",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
}
],
"title": "CISA ADP Vulnrichment",
"providerMetadata": {
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP",
"dateUpdated": "2025-10-01T17:10:29.970Z"
}
}
]
}
}