CVE-2026-64337
usb: mtu3: unmap request DMA on queue failure
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
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.
Timeline
- CVE published
- Record last updated
Affected versions
- Linux Linux
Version range not reported
- Linux Linux
4.10
References 8
git.kernel.org
- stable/c/3cee30f1138281a1d247bb053a1ad4f7c5b04e98
- stable/c/f3c4026524d3660c73ef2838b99776d37631e039
- stable/c/e8f739a3860d043dcc135371637e82f53132efe5
- stable/c/4183874b7925f4a98b400cf857bea26ee87da236
- stable/c/00c3fef4c2dc2c7cbd8281f8fda09d1913420f09
- stable/c/8c29d9cfab1c3cf0d0b7fcdf9255597be30aa3e1
- stable/c/835b0596d4c9bdef93f842d8f826978fb4956b74
- stable/c/0bddda5a11665c210339de76d27ebbd1a2e0b43c