CVE-2026-64585

CVE CVE-2026-64585EUVD EUVD-2026-53772Published 2026-08-06T07:06:26.000ZLast changed 2026-08-08T15:13:22.000ZCVSS 7.8

What the advisory describes

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.

Source: EUVD (ENISA), in the words of the advisory.

Products the advisory names

These come from the advisory itself, not from any check we performed.

Linux — Linux 2.6.36; patch: 6.6.145; patch: 7.1.5; 96d8e90382dc336b5de401164597edfdc2e8d9f1 <5832c55b3c824ba2fe9c36ac3c411baddcce053e; 96d8e90382dc336b5de401164597edfdc2e8d9f1 <a3314f10369df70925140f59bbe069718f65a0b9; patch: 6.18.40; patch: 6.1.178; 96d8e90382dc336b5de401164597edfdc2e8d9f1 <aa1d005927db38af783c1a4a8a00a39e0229ab2d; patch: 7.2-rc4; 96d8e90382dc336b5de401164597edfdc2e8d9f1 <a02e1d8f191324583599544d54e59e6a2b74bb0e; patch: 0; 96d8e90382dc336b5de401164597edfdc2e8d9f1 <765ba1c91823a296447528791b89a6504947fd5c; 96d8e90382dc336b5de401164597edfdc2e8d9f1 <c43122fef328a70045fe7621c06de6b2b8e19264; patch: 6.12.97

The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.

Carried in the product catalogue

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Linux — Linux

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