{"schema":"threatline.record/2","record":{"id":"CVE-2026-98763","aliases":[],"summary":"usb: core: clear both ep_in and ep_out for non-ep0 control endpoints","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nusb: core: clear both ep_in and ep_out for non-ep0 control endpoints\n\nIn usb_enable_endpoint(), non-zero control endpoints (where\nusb_endpoint_xfer_control(&ep->desc) is true) populate both\ndev->ep_in[epnum] and dev->ep_out[epnum] with the same struct\nusb_host_endpoint pointer.\n\nHowever, usb_disable_endpoint() only clears either dev->ep_out[epnum] or\ndev->ep_in[epnum] depending on the direction bit of epaddr when\nreset_hardware is set, leaving the opposite direction's array slot\npointing to the disabled/freed endpoint.\n\nClear both dev->ep_out[epnum] and dev->ep_in[epnum] when disabling a\nnon-ep0 control endpoint with reset_hardware set, and update the\nfunction kerneldoc accordingly.\n\nTested in QEMU against Linux 7.3.0-rc3 using dummy_hcd and raw-gadget to\nenumerate a USB device with a non-zero control endpoint\n(bEndpointAddress 0x01, bmAttributes USB_ENDPOINT_XFER_CONTROL),\nverifying that both dev->ep_in[1] and dev->ep_out[1] are cleared when\nthe interface is disabled.","categories":["Operating systems"],"product":"Linux","vendor":"Linux","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98763","source_modified_at":"2026-10-21T12:56:37.541Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Linux","vendor":"Linux","versions":[{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"198d74dcfa129523125f46a89479d3b446b17dbe","status":"affected","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"7a9f61476b0e8002092a52ee8295edeeb0a28d1e","status":"affected","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"1da16c46b8d7101b74bc2d72a04e23cf5c7ddea1","status":"affected","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"c50413ecb662ea43c7f487632c8114721743a277","status":"affected","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"0e8baa78d872f2db440d8b9ded946ab8dceb89eb","status":"affected","versionType":"git"}],"defaultStatus":"unaffected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98763","source_modified_at":"2026-10-21T12:56:37.541Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Linux","vendor":"Linux","versions":[{"version":"2.6.12","status":"affected"},{"version":"0","lessThan":"2.6.12","status":"unaffected","versionType":"semver"},{"version":"6.6.160","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.113","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.56","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.2.10","lessThanOrEqual":"7.2.*","status":"unaffected","versionType":"semver"},{"version":"7.3","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}],"defaultStatus":"affected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98763","source_modified_at":"2026-10-21T12:56:37.541Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"198d74dcfa129523125f46a89479d3b446b17dbe","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98763","source_modified_at":"2026-10-21T12:56:37.541Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"7a9f61476b0e8002092a52ee8295edeeb0a28d1e","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98763","source_modified_at":"2026-10-21T12:56:37.541Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"1da16c46b8d7101b74bc2d72a04e23cf5c7ddea1","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98763","source_modified_at":"2026-10-21T12:56:37.541Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"0e8baa78d872f2db440d8b9ded946ab8dceb89eb","basis":"first unaffected version stated in the CVE record"}],"cvss":null,"severity":null,"kev":{"listed":false},"epss":{"probability":0.00168,"percentile":0.05739,"score_date":"2026-10-23"},"published_at":"2026-10-18T15:47:54.526Z","modified_at":"2026-10-21T12:56:37.541Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-98763","fetched_at":"2026-10-23T18:45:31.882637Z","source_modified_at":"2026-10-21T12:56:37.541Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-98763","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://git.kernel.org/stable/c/198d74dcfa129523125f46a89479d3b446b17dbe"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/7a9f61476b0e8002092a52ee8295edeeb0a28d1e"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/1da16c46b8d7101b74bc2d72a04e23cf5c7ddea1"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/c50413ecb662ea43c7f487632c8114721743a277"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/0e8baa78d872f2db440d8b9ded946ab8dceb89eb"}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"product","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-10-21T12:56:37.541Z","content_hash":"9e5945bfbcaf4aea58d90edd0a752ba853f42193aea41078a77930b75e5c4a88"}}