CVE-2026-64337
Last modified
CVE-2026-64337 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. 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. EPSS estimates a 0.22% chance of exploitation in the next 30 days.
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.
Metrics
Affected Software
| Vendor | Product | Versions | Update |
|---|---|---|---|
| Linux | Linux Kernel | >= 4.10, < 5.10.261 | — |
| Linux | Linux Kernel | >= 5.11, < 5.15.212 | — |
| Linux | Linux Kernel | >= 5.16, < 6.1.178 | — |
| Linux | Linux Kernel | >= 6.2, < 6.6.145 | — |
| Linux | Linux Kernel | >= 6.7, < 6.12.96 | — |
| Linux | Linux Kernel | >= 6.13, < 6.18.39 | — |
| Linux | Linux Kernel | >= 6.19, < 7.1.4 | — |
| Linux | Linux Kernel | 7.2 | Rc1 |
References
Timeline
- Published
- Last Modified
- Status
- Analyzed
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