Answer in brief
CVE-2026-64585 records a High severity (CVSS 7.8) vulnerability in can: esd_usb: kill anchored URBs before freeing netdevs. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=96d8e90382dc336b5de401164597edfdc2e8d9f1 <aa1d005927db38af783c1a4a8a00a39e0229ab2d || >=96d8e90382dc336b5de401164597edfdc2e8d9f1 <a02e1d8f191324583599544d54e59e6a2b74bb0e || >=96d8e90382dc336b5de401164597edfdc2e8d9f1 <a3314f10369df70925140f59bbe069718f65a0b9 || >=96d8e90382dc336b5de401164597edfdc2e8d9f1 <765ba1c91823a296447528791b89a6504947fd5c || >=96d8e90382dc336b5de401164597edfdc2e8d9f1 <5832c55b3c824ba2fe9c36ac3c411baddcce053e || >=96d8e90382dc336b5de401164597edfdc2e8d9f1 <c43122fef328a70045fe7621c06de6b2b8e19264 | aa1d005927db38af783c1a4a8a00a39e0229ab2d, a02e1d8f191324583599544d54e59e6a2b74bb0e, a3314f10369df70925140f59bbe069718f65a0b9, 765ba1c91823a296447528791b89a6504947fd5c, 5832c55b3c824ba2fe9c36ac3c411baddcce053e, c43122fef328a70045fe7621c06de6b2b8e19264 |
| Linux/Linuxgeneric | 2.6.36 | Not reported |
| Linux/Linuxgeneric | >=96d8e90382dc336b5de401164597edfdc2e8d9f1 <d12f6add48f2da15c8c8281961d3faad804c76cf || >=96d8e90382dc336b5de401164597edfdc2e8d9f1 <aa1d005927db38af783c1a4a8a00a39e0229ab2d || >=96d8e90382dc336b5de401164597edfdc2e8d9f1 <a02e1d8f191324583599544d54e59e6a2b74bb0e || >=96d8e90382dc336b5de401164597edfdc2e8d9f1 <a3314f10369df70925140f59bbe069718f65a0b9 || >=96d8e90382dc336b5de401164597edfdc2e8d9f1 <765ba1c91823a296447528791b89a6504947fd5c || >=96d8e90382dc336b5de401164597edfdc2e8d9f1 <5832c55b3c824ba2fe9c36ac3c411baddcce053e || >=96d8e90382dc336b5de401164597edfdc2e8d9f1 <c43122fef328a70045fe7621c06de6b2b8e19264 | d12f6add48f2da15c8c8281961d3faad804c76cf, aa1d005927db38af783c1a4a8a00a39e0229ab2d, a02e1d8f191324583599544d54e59e6a2b74bb0e, a3314f10369df70925140f59bbe069718f65a0b9, 765ba1c91823a296447528791b89a6504947fd5c, 5832c55b3c824ba2fe9c36ac3c411baddcce053e, c43122fef328a70045fe7621c06de6b2b8e19264 |
Published upstream
Aug 6, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 23, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 6, 2026
In the Linux kernel, the following vulnerability has been resolved: can: esd_usb: kill anchored URBs before freeing netdevs esd_usb_disconnect() frees each CAN netdev with free_candev() inside its per-netdev loop and only calls unlink_all_urbs(dev) afterwards. The per-netdev private data (struct esd_usb_net_priv) is embedded in the net_device allocation returned by alloc_candev(), so once free_candev() has run, dev->nets[i] points to freed memory. unlink_all_urbs() then dereferences the freed dev->nets[i] to kill the per-netdev TX anchor (usb_kill_anchored_urbs(&priv->tx_submitted)), clear active_tx_jobs, and reset priv->tx_contexts[]. Reorder the teardown so the anchored URBs are killed before the netdevs are freed, matching other CAN/USB drivers in the same directory such as ems_usb, usb_8dev and mcba_usb, which unregister, then unlink, then free: unregister the netdevs first (which stops their TX queues), call unlink_all_urbs(dev) once, then free the netdevs. This issue was found by an in-house static analysis tool.
Quoted source text, attributed separately from HOL analysis.