{"id":"CVE-2026-23080","summary":"can: mcba_usb: mcba_usb_read_bulk_callback(): fix URB memory leak","details":"In the Linux kernel, the following vulnerability has been resolved:\n\ncan: mcba_usb: mcba_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 mcba_usb_probe() -\u003e mcba_usb_start(), the URBs for USB-in transfers are\nallocated, added to the priv-\u003erx_submitted anchor and submitted. In the\ncomplete callback mcba_usb_read_bulk_callback(), the URBs are processed and\nresubmitted. In mcba_usb_close() -\u003e mcba_urb_unlink() the URBs are freed by\ncalling usb_kill_anchored_urbs(&priv-\u003erx_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\nmcba_usb_read_bulk_callback()to the priv-\u003erx_submitted anchor.","modified":"2026-04-02T17:29:33.645779Z","published":"2026-02-04T16:08:04.982Z","related":["SUSE-SU-2026:0962-1","SUSE-SU-2026:1081-1","SUSE-SU-2026:20667-1","SUSE-SU-2026:20720-1","SUSE-SU-2026:20838-1","SUSE-SU-2026:20845-1","SUSE-SU-2026:20876-1","SUSE-SU-2026:20931-1","openSUSE-SU-2026:20416-1"],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/23xxx/CVE-2026-23080.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/179f6f0cf5ae489743273b7c1644324c0c477ea9"},{"type":"WEB","url":"https://git.kernel.org/stable/c/59153b6388e05609144ad56a9b354e9100a91983"},{"type":"WEB","url":"https://git.kernel.org/stable/c/710a7529fb13c5a470258ff5508ed3c498d54729"},{"type":"WEB","url":"https://git.kernel.org/stable/c/8b34c611a4feb81921bc4728c091e4e3ba0270c0"},{"type":"WEB","url":"https://git.kernel.org/stable/c/94c9f6f7b953f6382fef4bdc48c046b861b8868f"},{"type":"WEB","url":"https://git.kernel.org/stable/c/b5a1ccdc63b71d93a69a6b72f7a3f3934293ea60"},{"type":"WEB","url":"https://git.kernel.org/stable/c/d374d715e338dfc3804aaa006fa6e470ffebb264"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/23xxx/CVE-2026-23080.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-23080"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"51f3baad7de943780ce0c17bd7975df567dd6e14"},{"fixed":"8b34c611a4feb81921bc4728c091e4e3ba0270c0"},{"fixed":"b5a1ccdc63b71d93a69a6b72f7a3f3934293ea60"},{"fixed":"59153b6388e05609144ad56a9b354e9100a91983"},{"fixed":"179f6f0cf5ae489743273b7c1644324c0c477ea9"},{"fixed":"94c9f6f7b953f6382fef4bdc48c046b861b8868f"},{"fixed":"d374d715e338dfc3804aaa006fa6e470ffebb264"},{"fixed":"710a7529fb13c5a470258ff5508ed3c498d54729"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-23080.json"}}],"schema_version":"1.7.5"}