Answer in brief
CVE-2026-64337 records a Unknown severity vulnerability in usb: mtu3: unmap request DMA on queue failure. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
Answer in brief
CVE-2026-64337 records a Unknown severity vulnerability in usb: mtu3: unmap request DMA on queue failure. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=df2069acb00569a6299d6e11aa1865eeba463848 <3cee30f1138281a1d247bb053a1ad4f7c5b04e98 || >=df2069acb00569a6299d6e11aa1865eeba463848 <f3c4026524d3660c73ef2838b99776d37631e039 || >=df2069acb00569a6299d6e11aa1865eeba463848 <e8f739a3860d043dcc135371637e82f53132efe5 || >=df2069acb00569a6299d6e11aa1865eeba463848 <4183874b7925f4a98b400cf857bea26ee87da236 || >=df2069acb00569a6299d6e11aa1865eeba463848 <00c3fef4c2dc2c7cbd8281f8fda09d1913420f09 || >=df2069acb00569a6299d6e11aa1865eeba463848 <8c29d9cfab1c3cf0d0b7fcdf9255597be30aa3e1 || >=df2069acb00569a6299d6e11aa1865eeba463848 <835b0596d4c9bdef93f842d8f826978fb4956b74 || >=df2069acb00569a6299d6e11aa1865eeba463848 <0bddda5a11665c210339de76d27ebbd1a2e0b43c | 3cee30f1138281a1d247bb053a1ad4f7c5b04e98, f3c4026524d3660c73ef2838b99776d37631e039, e8f739a3860d043dcc135371637e82f53132efe5, 4183874b7925f4a98b400cf857bea26ee87da236, 00c3fef4c2dc2c7cbd8281f8fda09d1913420f09, 8c29d9cfab1c3cf0d0b7fcdf9255597be30aa3e1, 835b0596d4c9bdef93f842d8f826978fb4956b74, 0bddda5a11665c210339de76d27ebbd1a2e0b43c |
| Linux/Linuxgeneric | 4.10 | Not reported |
Published upstream
Jul 25, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 17, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 11, 2026
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.
Quoted source text, attributed separately from HOL analysis.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=df2069acb00569a6299d6e11aa1865eeba463848 <3cee30f1138281a1d247bb053a1ad4f7c5b04e98 || >=df2069acb00569a6299d6e11aa1865eeba463848 <f3c4026524d3660c73ef2838b99776d37631e039 || >=df2069acb00569a6299d6e11aa1865eeba463848 <e8f739a3860d043dcc135371637e82f53132efe5 || >=df2069acb00569a6299d6e11aa1865eeba463848 <4183874b7925f4a98b400cf857bea26ee87da236 || >=df2069acb00569a6299d6e11aa1865eeba463848 <00c3fef4c2dc2c7cbd8281f8fda09d1913420f09 || >=df2069acb00569a6299d6e11aa1865eeba463848 <8c29d9cfab1c3cf0d0b7fcdf9255597be30aa3e1 || >=df2069acb00569a6299d6e11aa1865eeba463848 <835b0596d4c9bdef93f842d8f826978fb4956b74 || >=df2069acb00569a6299d6e11aa1865eeba463848 <0bddda5a11665c210339de76d27ebbd1a2e0b43c | 3cee30f1138281a1d247bb053a1ad4f7c5b04e98, f3c4026524d3660c73ef2838b99776d37631e039, e8f739a3860d043dcc135371637e82f53132efe5, 4183874b7925f4a98b400cf857bea26ee87da236, 00c3fef4c2dc2c7cbd8281f8fda09d1913420f09, 8c29d9cfab1c3cf0d0b7fcdf9255597be30aa3e1, 835b0596d4c9bdef93f842d8f826978fb4956b74, 0bddda5a11665c210339de76d27ebbd1a2e0b43c |
| Linux/Linuxgeneric | 4.10 | Not reported |
Published upstream
Jul 25, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 17, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 11, 2026
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.
Quoted source text, attributed separately from HOL analysis.