{"cve":"CVE-2026-23031","nvd":{"published":"2026-01-31T12:16:06.413","modified":"2026-06-17T10:20:44.640","status":"Deferred","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ncan: gs_usb: gs_usb_receive_bulk_callback(): fix URB memory leak\n\nIn gs_can_open(), the URBs for USB-in transfers are allocated, added to the\nparent->rx_submitted anchor and submitted. In the complete callback\ngs_usb_receive_bulk_callback(), the URB is processed and resubmitted. In\ngs_can_close() the URBs are freed by calling\nusb_kill_anchored_urbs(parent->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 gs_can_close().\n\nFix the memory leak by anchoring the URB in the\ngs_usb_receive_bulk_callback() to the parent->rx_submitted anchor.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["https://git.kernel.org/stable/c/08624b7206ddb9148eeffc2384ebda2c47b6d1e9","https://git.kernel.org/stable/c/7352e1d5932a0e777e39fa4b619801191f57e603","https://git.kernel.org/stable/c/9c151898cc259a7784be60ba38664f42ede39b31","https://git.kernel.org/stable/c/9f669a38ca70839229b7ba0f851820850a2fe1f7","https://git.kernel.org/stable/c/ec5ccc2af9e5b045671f3f604b57512feda8bcc5"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:22:27.261130201+00:00"},"epss":{"cve":"CVE-2026-23031","score":0.0022,"percentile":0.12643,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}