{"id":"CVE-2026-23061","revision":"421329b653bf4f4f92dd014c9ab07883","records":[{"revision":"421329b653bf4f4f92dd014c9ab07883","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-23061","aliases":[],"title":"can: kvaser_usb: kvaser_usb_read_bulk_callback(): fix URB memory leak","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ncan: kvaser_usb: kvaser_usb_read_bulk_callback(): fix URB memory leak\n\nFix similar memory leak as in commit 7352e1d5932a (\"can: gs_usb:\ngs_usb_receive_bulk_callback(): fix URB memory leak\").\n\nIn kvaser_usb_set_{,data_}bittiming() -> kvaser_usb_setup_rx_urbs(), the\nURBs for USB-in transfers are allocated, added to the dev->rx_submitted\nanchor and submitted. In the complete callback\nkvaser_usb_read_bulk_callback(), the URBs are processed and resubmitted. In\nkvaser_usb_remove_interfaces() the URBs are freed by calling\nusb_kill_anchored_urbs(&dev->rx_submitted).\n\nHowever, this does not take into account that the USB framework unanchors\nthe URB before the complete function is called. This means that once an\nin-URB has been completed, it is no longer anchored and is ultimately not\nreleased in usb_kill_anchored_urbs().\n\nFix the memory leak by anchoring the URB in the\nkvaser_usb_read_bulk_callback() to the dev->rx_submitted anchor.","state":0,"publishedAt":"2026-02-04T16:07:43.626+00:00","modifiedAt":"2026-10-19T18:25:28.589+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/net/can/usb/kvaser_usb/kvaser_usb_core.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"080f40a6fa28dab299da7a652e444b1e2d9231e7\",\n                            \"lessThan\": \"d9d824582f2ec76459ffab449e9b05c7bc49645c\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"080f40a6fa28dab299da7a652e444b1e2d9231e7\",\n                            \"lessThan\": \"40a3334ffda479c63e416e61ff086485e24401f7\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"080f40a6fa28dab299da7a652e444b1e2d9231e7\",\n                            \"lessThan\": \"c1b39fa24c140bc616f51fef4175c1743e2bb132\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"080f40a6fa28dab299da7a652e444b1e2d9231e7\",\n                            \"lessThan\": \"7c308f7530bffafa994e0aa8dc651a312f4b9ff4\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"080f40a6fa28dab299da7a652e444b1e2d9231e7\",\n                            \"lessThan\": \"94a7fc42e21c7d9d1c49778cd1db52de5df52a01\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"080f40a6fa28dab299da7a652e444b1e2d9231e7\",\n                            \"lessThan\": \"3b1a593eab941c3f32417896cc7df564191f2482\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"080f40a6fa28dab299da7a652e444b1e2d9231e7\",\n                            \"lessThan\": \"248e8e1a125fa875158df521b30f2cc7e27eeeaa\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/net/can/usb/kvaser_usb/kvaser_usb_core.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"3.8\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"3.8\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.10.249\",\n                            \"lessThanOrEqual\": \"5.10.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.15.199\",\n                            \"lessThanOrEqual\": \"5.15.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.162\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.122\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.68\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.8\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.19\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[],"references":["https://git.kernel.org/stable/c/d9d824582f2ec76459ffab449e9b05c7bc49645c","https://git.kernel.org/stable/c/40a3334ffda479c63e416e61ff086485e24401f7","https://git.kernel.org/stable/c/c1b39fa24c140bc616f51fef4175c1743e2bb132","https://git.kernel.org/stable/c/7c308f7530bffafa994e0aa8dc651a312f4b9ff4","https://git.kernel.org/stable/c/94a7fc42e21c7d9d1c49778cd1db52de5df52a01","https://git.kernel.org/stable/c/3b1a593eab941c3f32417896cc7df564191f2482","https://git.kernel.org/stable/c/248e8e1a125fa875158df521b30f2cc7e27eeeaa"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-23061","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-23061","identifiers":["CVE-2026-23061"]},"retained":false,"historicalAffected":[]}],"coverage":[]}