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.
Affected products
linux: linux kernel
References8
- git.kernel.org/stable/c/00c3fef4c2dc2c7cbd8281f8fda09d1913420f09 Patch
- git.kernel.org/stable/c/0bddda5a11665c210339de76d27ebbd1a2e0b43c Patch
- git.kernel.org/stable/c/3cee30f1138281a1d247bb053a1ad4f7c5b04e98 Patch
- git.kernel.org/stable/c/4183874b7925f4a98b400cf857bea26ee87da236 Patch
- git.kernel.org/stable/c/835b0596d4c9bdef93f842d8f826978fb4956b74 Patch
- git.kernel.org/stable/c/8c29d9cfab1c3cf0d0b7fcdf9255597be30aa3e1 Patch
- git.kernel.org/stable/c/e8f739a3860d043dcc135371637e82f53132efe5 Patch
- git.kernel.org/stable/c/f3c4026524d3660c73ef2838b99776d37631e039 Patch
Metrics
- CVSS 3.1
-
5.5
MEDIUM
Score source: NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - EPSS — exploit probability
- 0% percentile: 5 · as of 14 November 2026
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