CVE-2026-64337 (GCVE-0-2026-64337)
Vulnerability from cvelistv5
Published
2026-07-25 08:50
Modified
2026-08-17 04:53
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
usb: mtu3: unmap request DMA on queue failure
mtu3_gadget_queue() maps the request before checking whether
the QMU GPD ring can accept another transfer. the request is
returned with -EAGAIN before it is linked on the endpoint
request list if mtu3_prepare_transfer() fails.
Normal completion and dequeue paths unmap requests from
mtu3_req_complete(), but this error path never reaches that
helper, so the DMA mapping is left active. Unmap the request
before returning from the failed queue path.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: df2069acb00569a6299d6e11aa1865eeba463848 Version: df2069acb00569a6299d6e11aa1865eeba463848 Version: df2069acb00569a6299d6e11aa1865eeba463848 Version: df2069acb00569a6299d6e11aa1865eeba463848 Version: df2069acb00569a6299d6e11aa1865eeba463848 Version: df2069acb00569a6299d6e11aa1865eeba463848 Version: df2069acb00569a6299d6e11aa1865eeba463848 Version: df2069acb00569a6299d6e11aa1865eeba463848 |
||
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/usb/mtu3/mtu3_gadget.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
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"versionType": "git"
},
{
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},
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"status": "affected",
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"versionType": "git"
},
{
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]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"drivers/usb/mtu3/mtu3_gadget.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "4.10"
},
{
"lessThan": "4.10",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.261",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.212",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.178",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.145",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"version": "6.12.96",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.18.*",
"status": "unaffected",
"version": "6.18.39",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.1.*",
"status": "unaffected",
"version": "7.1.4",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "7.2",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.10.261",
"versionStartIncluding": "4.10",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.15.212",
"versionStartIncluding": "4.10",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.1.178",
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},
{
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"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.12.96",
"versionStartIncluding": "4.10",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.18.39",
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"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "7.1.4",
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{
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"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: mtu3: unmap request DMA on queue failure\n\nmtu3_gadget_queue() maps the request before checking whether\nthe QMU GPD ring can accept another transfer. the request is\nreturned with -EAGAIN before it is linked on the endpoint\nrequest list if mtu3_prepare_transfer() fails.\n\nNormal completion and dequeue paths unmap requests from\nmtu3_req_complete(), but this error path never reaches that\nhelper, so the DMA mapping is left active. Unmap the request\nbefore returning from the failed queue path."
}
],
"providerMetadata": {
"dateUpdated": "2026-08-17T04:53:40.517Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/3cee30f1138281a1d247bb053a1ad4f7c5b04e98"
},
{
"url": "https://git.kernel.org/stable/c/f3c4026524d3660c73ef2838b99776d37631e039"
},
{
"url": "https://git.kernel.org/stable/c/e8f739a3860d043dcc135371637e82f53132efe5"
},
{
"url": "https://git.kernel.org/stable/c/4183874b7925f4a98b400cf857bea26ee87da236"
},
{
"url": "https://git.kernel.org/stable/c/00c3fef4c2dc2c7cbd8281f8fda09d1913420f09"
},
{
"url": "https://git.kernel.org/stable/c/8c29d9cfab1c3cf0d0b7fcdf9255597be30aa3e1"
},
{
"url": "https://git.kernel.org/stable/c/835b0596d4c9bdef93f842d8f826978fb4956b74"
},
{
"url": "https://git.kernel.org/stable/c/0bddda5a11665c210339de76d27ebbd1a2e0b43c"
}
],
"title": "usb: mtu3: unmap request DMA on queue failure",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2026-64337",
"datePublished": "2026-07-25T08:50:02.066Z",
"dateReserved": "2026-07-19T15:36:31.781Z",
"dateUpdated": "2026-08-17T04:53:40.517Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
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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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