CVE-2026-64337
usb: mtu3: unmap request DMA on queue failure
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Jul 25, 2026 |
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Affected Versions
Linux / Linux
df2069acb00569a6299d6e11aa1865eeba463848 < 3cee30f1138281a1d247bb053a1ad4f7c5b04e98 df2069acb00569a6299d6e11aa1865eeba463848 < f3c4026524d3660c73ef2838b99776d37631e039 df2069acb00569a6299d6e11aa1865eeba463848 < e8f739a3860d043dcc135371637e82f53132efe5 df2069acb00569a6299d6e11aa1865eeba463848 < 4183874b7925f4a98b400cf857bea26ee87da236 df2069acb00569a6299d6e11aa1865eeba463848 < 00c3fef4c2dc2c7cbd8281f8fda09d1913420f09 df2069acb00569a6299d6e11aa1865eeba463848 < 8c29d9cfab1c3cf0d0b7fcdf9255597be30aa3e1 df2069acb00569a6299d6e11aa1865eeba463848 < 835b0596d4c9bdef93f842d8f826978fb4956b74 df2069acb00569a6299d6e11aa1865eeba463848 < 0bddda5a11665c210339de76d27ebbd1a2e0b43c
Linux / Linux
4.10
References
git.kernel.org: https://git.kernel.org/stable/c/3cee30f1138281a1d247bb053a1ad4f7c5b04e98 git.kernel.org: https://git.kernel.org/stable/c/f3c4026524d3660c73ef2838b99776d37631e039 git.kernel.org: https://git.kernel.org/stable/c/e8f739a3860d043dcc135371637e82f53132efe5 git.kernel.org: https://git.kernel.org/stable/c/4183874b7925f4a98b400cf857bea26ee87da236 git.kernel.org: https://git.kernel.org/stable/c/00c3fef4c2dc2c7cbd8281f8fda09d1913420f09 git.kernel.org: https://git.kernel.org/stable/c/8c29d9cfab1c3cf0d0b7fcdf9255597be30aa3e1 git.kernel.org: https://git.kernel.org/stable/c/835b0596d4c9bdef93f842d8f826978fb4956b74 git.kernel.org: https://git.kernel.org/stable/c/0bddda5a11665c210339de76d27ebbd1a2e0b43c