usb: mtu3: unmap request DMA on queue failure
Summary
| CVE | CVE-2026-64337 |
|---|---|
| State | PUBLISHED |
| Assigner | Linux |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-07-25 10:17:15 UTC |
| Updated | 2026-07-25 10:17:15 UTC |
| Description | 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. |
Risk And Classification
EPSS: 0.002110000 probability, percentile 0.114710000 (date 2026-07-28)
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Linux | Linux | affected df2069acb00569a6299d6e11aa1865eeba463848 3cee30f1138281a1d247bb053a1ad4f7c5b04e98 git | Not specified |
| CNA | Linux | Linux | affected df2069acb00569a6299d6e11aa1865eeba463848 f3c4026524d3660c73ef2838b99776d37631e039 git | Not specified |
| CNA | Linux | Linux | affected df2069acb00569a6299d6e11aa1865eeba463848 e8f739a3860d043dcc135371637e82f53132efe5 git | Not specified |
| CNA | Linux | Linux | affected df2069acb00569a6299d6e11aa1865eeba463848 4183874b7925f4a98b400cf857bea26ee87da236 git | Not specified |
| CNA | Linux | Linux | affected df2069acb00569a6299d6e11aa1865eeba463848 00c3fef4c2dc2c7cbd8281f8fda09d1913420f09 git | Not specified |
| CNA | Linux | Linux | affected df2069acb00569a6299d6e11aa1865eeba463848 8c29d9cfab1c3cf0d0b7fcdf9255597be30aa3e1 git | Not specified |
| CNA | Linux | Linux | affected df2069acb00569a6299d6e11aa1865eeba463848 835b0596d4c9bdef93f842d8f826978fb4956b74 git | Not specified |
| CNA | Linux | Linux | affected df2069acb00569a6299d6e11aa1865eeba463848 0bddda5a11665c210339de76d27ebbd1a2e0b43c git | Not specified |
| CNA | Linux | Linux | affected 4.10 | Not specified |
| CNA | Linux | Linux | unaffected 4.10 semver | Not specified |
| CNA | Linux | Linux | unaffected 5.10.261 5.10.* semver | Not specified |
| CNA | Linux | Linux | unaffected 5.15.212 5.15.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.1.178 6.1.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.6.145 6.6.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.12.96 6.12.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.18.39 6.18.* semver | Not specified |
| CNA | Linux | Linux | unaffected 7.1.4 7.1.* semver | Not specified |
| CNA | Linux | Linux | unaffected 7.2-rc3 * original_commit_for_fix | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| git.kernel.org/stable/c/f3c4026524d3660c73ef2838b99776d37631e039 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/835b0596d4c9bdef93f842d8f826978fb4956b74 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/00c3fef4c2dc2c7cbd8281f8fda09d1913420f09 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/3cee30f1138281a1d247bb053a1ad4f7c5b04e98 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/e8f739a3860d043dcc135371637e82f53132efe5 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/4183874b7925f4a98b400cf857bea26ee87da236 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/0bddda5a11665c210339de76d27ebbd1a2e0b43c | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/8c29d9cfab1c3cf0d0b7fcdf9255597be30aa3e1 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.