{"api_version":"1","generated_at":"2026-08-03T01:59:36+00:00","cve":"CVE-2026-64337","urls":{"html":"https://cve.report/CVE-2026-64337","api":"https://cve.report/api/cve/CVE-2026-64337.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-64337","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-64337"},"summary":{"title":"usb: mtu3: unmap request DMA on queue failure","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nusb: mtu3: unmap request DMA on queue failure\n\nmtu3_gadget_queue() maps the request before checking whether\nthe QMU GPD ring can accept another transfer. the request is\nreturned with -EAGAIN before it is linked on the endpoint\nrequest list if mtu3_prepare_transfer() fails.\n\nNormal completion and dequeue paths unmap requests from\nmtu3_req_complete(), but this error path never reaches that\nhelper, so the DMA mapping is left active. Unmap the request\nbefore returning from the failed queue path.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-07-25 10:17:15","updated_at":"2026-07-25 10:17:15"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/f3c4026524d3660c73ef2838b99776d37631e039","name":"https://git.kernel.org/stable/c/f3c4026524d3660c73ef2838b99776d37631e039","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/835b0596d4c9bdef93f842d8f826978fb4956b74","name":"https://git.kernel.org/stable/c/835b0596d4c9bdef93f842d8f826978fb4956b74","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/00c3fef4c2dc2c7cbd8281f8fda09d1913420f09","name":"https://git.kernel.org/stable/c/00c3fef4c2dc2c7cbd8281f8fda09d1913420f09","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/3cee30f1138281a1d247bb053a1ad4f7c5b04e98","name":"https://git.kernel.org/stable/c/3cee30f1138281a1d247bb053a1ad4f7c5b04e98","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/e8f739a3860d043dcc135371637e82f53132efe5","name":"https://git.kernel.org/stable/c/e8f739a3860d043dcc135371637e82f53132efe5","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/4183874b7925f4a98b400cf857bea26ee87da236","name":"https://git.kernel.org/stable/c/4183874b7925f4a98b400cf857bea26ee87da236","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/0bddda5a11665c210339de76d27ebbd1a2e0b43c","name":"https://git.kernel.org/stable/c/0bddda5a11665c210339de76d27ebbd1a2e0b43c","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/8c29d9cfab1c3cf0d0b7fcdf9255597be30aa3e1","name":"https://git.kernel.org/stable/c/8c29d9cfab1c3cf0d0b7fcdf9255597be30aa3e1","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-64337","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-64337","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected df2069acb00569a6299d6e11aa1865eeba463848 3cee30f1138281a1d247bb053a1ad4f7c5b04e98 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected df2069acb00569a6299d6e11aa1865eeba463848 f3c4026524d3660c73ef2838b99776d37631e039 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected df2069acb00569a6299d6e11aa1865eeba463848 e8f739a3860d043dcc135371637e82f53132efe5 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected df2069acb00569a6299d6e11aa1865eeba463848 4183874b7925f4a98b400cf857bea26ee87da236 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 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semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.15.212 5.15.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1.178 6.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.145 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.96 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.39 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1.4 7.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2-rc3 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"64337","cve":"CVE-2026-64337","epss":"0.002110000","percentile":"0.114710000","score_date":"2026-07-28","updated_at":"2026-07-29 00:05:33"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/usb/mtu3/mtu3_gadget.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"3cee30f1138281a1d247bb053a1ad4f7c5b04e98","status":"affected","version":"df2069acb00569a6299d6e11aa1865eeba463848","versionType":"git"},{"lessThan":"f3c4026524d3660c73ef2838b99776d37631e039","status":"affected","version":"df2069acb00569a6299d6e11aa1865eeba463848","versionType":"git"},{"lessThan":"e8f739a3860d043dcc135371637e82f53132efe5","status":"affected","version":"df2069acb00569a6299d6e11aa1865eeba463848","versionType":"git"},{"lessThan":"4183874b7925f4a98b400cf857bea26ee87da236","status":"affected","version":"df2069acb00569a6299d6e11aa1865eeba463848","versionType":"git"},{"lessThan":"00c3fef4c2dc2c7cbd8281f8fda09d1913420f09","status":"affected","version":"df2069acb00569a6299d6e11aa1865eeba463848","versionType":"git"},{"lessThan":"8c29d9cfab1c3cf0d0b7fcdf9255597be30aa3e1","status":"affected","version":"df2069acb00569a6299d6e11aa1865eeba463848","versionType":"git"},{"lessThan":"835b0596d4c9bdef93f842d8f826978fb4956b74","status":"affected","version":"df2069acb00569a6299d6e11aa1865eeba463848","versionType":"git"},{"lessThan":"0bddda5a11665c210339de76d27ebbd1a2e0b43c","status":"affected","version":"df2069acb00569a6299d6e11aa1865eeba463848","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/usb/mtu3/mtu3_gadget.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.10"},{"lessThan":"4.10","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.261","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.212","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.178","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.145","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.96","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.39","versionType":"semver"},{"lessThanOrEqual":"7.1.*","status":"unaffected","version":"7.1.4","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.2-rc3","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.10.261","versionStartIncluding":"4.10","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.15.212","versionStartIncluding":"4.10","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.178","versionStartIncluding":"4.10","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.145","versionStartIncluding":"4.10","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.96","versionStartIncluding":"4.10","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.39","versionStartIncluding":"4.10","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1.4","versionStartIncluding":"4.10","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2-rc3","versionStartIncluding":"4.10","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nusb: mtu3: unmap request DMA on queue failure\n\nmtu3_gadget_queue() maps the request before checking whether\nthe QMU GPD ring can accept another transfer. the request is\nreturned with -EAGAIN before it is linked on the endpoint\nrequest list if mtu3_prepare_transfer() fails.\n\nNormal completion and dequeue paths unmap requests from\nmtu3_req_complete(), but this error path never reaches that\nhelper, so the DMA mapping is left active. Unmap the request\nbefore returning from the failed queue path."}],"providerMetadata":{"dateUpdated":"2026-07-25T08:50:02.066Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/3cee30f1138281a1d247bb053a1ad4f7c5b04e98"},{"url":"https://git.kernel.org/stable/c/f3c4026524d3660c73ef2838b99776d37631e039"},{"url":"https://git.kernel.org/stable/c/e8f739a3860d043dcc135371637e82f53132efe5"},{"url":"https://git.kernel.org/stable/c/4183874b7925f4a98b400cf857bea26ee87da236"},{"url":"https://git.kernel.org/stable/c/00c3fef4c2dc2c7cbd8281f8fda09d1913420f09"},{"url":"https://git.kernel.org/stable/c/8c29d9cfab1c3cf0d0b7fcdf9255597be30aa3e1"},{"url":"https://git.kernel.org/stable/c/835b0596d4c9bdef93f842d8f826978fb4956b74"},{"url":"https://git.kernel.org/stable/c/0bddda5a11665c210339de76d27ebbd1a2e0b43c"}],"title":"usb: mtu3: unmap request DMA on queue failure","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-64337","datePublished":"2026-07-25T08:50:02.066Z","dateReserved":"2026-07-19T15:36:31.781Z","dateUpdated":"2026-07-25T08:50:02.066Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-07-25 10:17:15","lastModifiedDate":"2026-07-25 10:17:15","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"64337","Ordinal":"1","Title":"usb: mtu3: unmap request DMA on queue failure","CVE":"CVE-2026-64337","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"64337","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nusb: mtu3: unmap request DMA on queue failure\n\nmtu3_gadget_queue() maps the request before checking whether\nthe QMU GPD ring can accept another transfer. the request is\nreturned with -EAGAIN before it is linked on the endpoint\nrequest list if mtu3_prepare_transfer() fails.\n\nNormal completion and dequeue paths unmap requests from\nmtu3_req_complete(), but this error path never reaches that\nhelper, so the DMA mapping is left active. Unmap the request\nbefore returning from the failed queue path.","Type":"Description","Title":"usb: mtu3: unmap request DMA on queue failure"}]}}}