{"id":"CVE-2026-23075","summary":"can: esd_usb: esd_usb_read_bulk_callback(): fix URB memory leak","details":"In the Linux kernel, the following vulnerability has been resolved:\n\ncan: esd_usb: esd_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 esd_usb_open(), the URBs for USB-in transfers are allocated, added to\nthe dev-\u003erx_submitted anchor and submitted. In the complete callback\nesd_usb_read_bulk_callback(), the URBs are processed and resubmitted. In\nesd_usb_close() the URBs are freed by calling\nusb_kill_anchored_urbs(&dev-\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 esd_usb_close().\n\nFix the memory leak by anchoring the URB in the\nesd_usb_read_bulk_callback() to the dev-\u003erx_submitted anchor.","modified":"2026-04-02T13:11:56.357478Z","published":"2026-02-04T16:08:00.169Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/23xxx/CVE-2026-23075.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/5a4391bdc6c8357242f62f22069c865b792406b3"},{"type":"WEB","url":"https://git.kernel.org/stable/c/92d26ce07ac3b7a850dc68c8d73d487b39c39b33"},{"type":"WEB","url":"https://git.kernel.org/stable/c/93b34d4ba7266030801a509c088ac77c0d7a12e9"},{"type":"WEB","url":"https://git.kernel.org/stable/c/9d1807b442fc3286b204f8e59981b10e743533ce"},{"type":"WEB","url":"https://git.kernel.org/stable/c/a9503ae43256e80db5cba9d449b238607164c51d"},{"type":"WEB","url":"https://git.kernel.org/stable/c/adec5e1f9c99fe079ec4c92cca3f1109a3e257c3"},{"type":"WEB","url":"https://git.kernel.org/stable/c/dc934d96673992af8568664c1b58e13eb164010d"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/23xxx/CVE-2026-23075.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-23075"},{"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":"96d8e90382dc336b5de401164597edfdc2e8d9f1"},{"fixed":"93b34d4ba7266030801a509c088ac77c0d7a12e9"},{"fixed":"dc934d96673992af8568664c1b58e13eb164010d"},{"fixed":"92d26ce07ac3b7a850dc68c8d73d487b39c39b33"},{"fixed":"adec5e1f9c99fe079ec4c92cca3f1109a3e257c3"},{"fixed":"9d1807b442fc3286b204f8e59981b10e743533ce"},{"fixed":"a9503ae43256e80db5cba9d449b238607164c51d"},{"fixed":"5a4391bdc6c8357242f62f22069c865b792406b3"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-23075.json"}}],"schema_version":"1.7.5"}