{"cve":"CVE-2026-64585","nvd":{"published":"2026-08-06T08:16:33.693","modified":"2026-08-23T13:16:32.117","status":"Received","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ncan: esd_usb: kill anchored URBs before freeing netdevs\n\nesd_usb_disconnect() frees each CAN netdev with free_candev() inside\nits per-netdev loop and only calls unlink_all_urbs(dev) afterwards.\nThe per-netdev private data (struct esd_usb_net_priv) is embedded in\nthe net_device allocation returned by alloc_candev(), so once\nfree_candev() has run, dev->nets[i] points to freed memory.\nunlink_all_urbs() then dereferences the freed dev->nets[i] to kill the\nper-netdev TX anchor (usb_kill_anchored_urbs(&priv->tx_submitted)),\nclear active_tx_jobs, and reset priv->tx_contexts[].\n\nReorder the teardown so the anchored URBs are killed before the netdevs\nare freed, matching other CAN/USB drivers in the same directory such as\nems_usb, usb_8dev and mcba_usb, which unregister, then unlink, then\nfree: unregister the netdevs first (which stops their TX queues), call\nunlink_all_urbs(dev) once, then free the netdevs.\n\nThis issue was found by an in-house static analysis tool.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8},"cwes":[],"references":["https://git.kernel.org/stable/c/5832c55b3c824ba2fe9c36ac3c411baddcce053e","https://git.kernel.org/stable/c/765ba1c91823a296447528791b89a6504947fd5c","https://git.kernel.org/stable/c/a02e1d8f191324583599544d54e59e6a2b74bb0e","https://git.kernel.org/stable/c/a3314f10369df70925140f59bbe069718f65a0b9","https://git.kernel.org/stable/c/aa1d005927db38af783c1a4a8a00a39e0229ab2d"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:47:10.050265369+00:00"},"epss":{"cve":"CVE-2026-64585","score":0.0012,"percentile":0.01837,"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."]}