Answer in brief
CVE-2026-64585 records a Unknown severity 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). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. 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). 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 |
Published upstream
Aug 6, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 6, 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.
Answer in brief
CVE-2026-64585 records a Unknown severity 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). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. 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). 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 |
Published upstream
Aug 6, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 6, 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.