CVE-2026-64585
Detail
Received This CVE record has recently been published to the CVE List and has been included within the NVD dataset.
Description
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.
Metrics
CVSS Version 4.0
CVSS Version 3.x
CVSS Version 2.0
NVD enrichment efforts reference publicly available information to associate
vector strings. CVSS information contributed by other sources is also
displayed.
CVSS 4.0 Severity and Vector Strings:
NVD assessment
not yet provided.
CVSS 3.x Severity and Vector Strings:
NVD assessment
not yet provided.
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0 Severity and Vector Strings:
NVD assessment
not yet provided.
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Change History
4 change records found show changes
CVE Modified by kernel.org
8/23/2026 9:16:32 AM
Action
Type
Old Value
New Value
Added
Reference
https://git.kernel.org/stable/c/d12f6add48f2da15c8c8281961d3faad804c76cf
Changed
Affected
[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["drivers/net/can/usb/esd_usb.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"96d8e90382dc336b5de401164597edfdc2e8d9f1","lessThan":"aa1d005927db38af783c1a4a8a00a39e0229ab2d","versionType":"git","status":"affected"},{"version":"96d8e90382dc336b5de401164597edfdc2e8d9f1","lessThan":"a02e1d8f191324583599544d54e59e6a2b74bb0e","versionType":"git","status":"affected"},{"version":"96d8e90382dc336b5de401164597edfdc2e8d9f1","lessThan":"a3314f10369df70925140f59bbe069718f65a0b9","versionType":"git","status":"affected"},{"version":"96d8e90382dc336b5de401164597edfdc2e8d9f1","lessThan":"765ba1c91823a296447528791b89a6504947fd5c","versionType":"git","status":"affected"},{"version":"96d8e90382dc336b5de401164597edfdc2e8d9f1","lessThan":"5832c55b3c824ba2fe9c36ac3c411baddcce053e","versionType":"git","status":"affected"},{"version":"96d8e90382dc336b5de401164597edfdc2e8d9f1","lessThan":"c43122fef328a70045fe7621c06de6b2b8e19264","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["drivers/net/can/usb/esd_usb.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"2.6.36","status":"affected"},{"version":"0","lessThan":"2.6.36","versionType":"semver","status":"unaffected"},{"version":"6.1.178","lessThanOrEqual":"6.1.*","versionType":"semver","status":"unaffected"},{"version":"6.6.145","lessThanOrEqual":"6.6.*","versionType":"semver","status":"unaffected"},{"version":"6.12.97","lessThanOrEqual":"6.12.*","versionType":"semver","status":"unaffected"},{"version":"6.18.40","lessThanOrEqual":"6.18.*","versionType":"semver","status":"unaffected"},{"version":"7.1.5","lessThanOrEqual":"7.1.*","versionType":"semver","status":"unaffected"},{"version":"7.2","lessThanOrEqual":"*","versionType":"original_commit_for_fix","status":"unaffected"}]}]
Record truncated, showing 2048 of 2230 characters.
View Entire Change Record [{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["drivers/net/can/usb/esd_usb.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"96d8e90382dc336b5de401164597edfdc2e8d9f1","lessThan":"d12f6add48f2da15c8c8281961d3faad804c76cf","versionType":"git","status":"affected"},{"version":"96d8e90382dc336b5de401164597edfdc2e8d9f1","lessThan":"aa1d005927db38af783c1a4a8a00a39e0229ab2d","versionType":"git","status":"affected"},{"version":"96d8e90382dc336b5de401164597edfdc2e8d9f1","lessThan":"a02e1d8f191324583599544d54e59e6a2b74bb0e","versionType":"git","status":"affected"},{"version":"96d8e90382dc336b5de401164597edfdc2e8d9f1","lessThan":"a3314f10369df70925140f59bbe069718f65a0b9","versionType":"git","status":"affected"},{"version":"96d8e90382dc336b5de401164597edfdc2e8d9f1","lessThan":"765ba1c91823a296447528791b89a6504947fd5c","versionType":"git","status":"affected"},{"version":"96d8e90382dc336b5de401164597edfdc2e8d9f1","lessThan":"5832c55b3c824ba2fe9c36ac3c411baddcce053e","versionType":"git","status":"affected"},{"version":"96d8e90382dc336b5de401164597edfdc2e8d9f1","lessThan":"c43122fef328a70045fe7621c06de6b2b8e19264","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["drivers/net/can/usb/esd_usb.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"2.6.36","status":"affected"},{"version":"0","lessThan":"2.6.36","versionType":"semver","status":"unaffected"},{"version":"5.15.217","lessThanOrEqual":"5.15.*","versionType":"semver","status":"unaffected"},{"version":"6.1.178","lessThanOrEqual":"6.1.*","versionType":"semver","status":"unaffected"},{"version":"6.6.145","lessThanOrEqual":"6.6.*","versionType":"semver","status":"unaffected"},{"version":"6.12.97","lessThanOrEqual":"6.12.*","versionType":"semver","status":"unaffected"},{"version":"6.18.40","lessThanOrEqual":"6.18.*","versionType":"semver","status":"unaffected"},{"version":"7
CVE Modified by kernel.org
8/17/2026 1:18:04 AM
Action
Type
Old Value
New Value
Changed
Affected
[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["drivers/net/can/usb/esd_usb.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"96d8e90382dc336b5de401164597edfdc2e8d9f1","lessThan":"aa1d005927db38af783c1a4a8a00a39e0229ab2d","versionType":"git","status":"affected"},{"version":"96d8e90382dc336b5de401164597edfdc2e8d9f1","lessThan":"a02e1d8f191324583599544d54e59e6a2b74bb0e","versionType":"git","status":"affected"},{"version":"96d8e90382dc336b5de401164597edfdc2e8d9f1","lessThan":"a3314f10369df70925140f59bbe069718f65a0b9","versionType":"git","status":"affected"},{"version":"96d8e90382dc336b5de401164597edfdc2e8d9f1","lessThan":"765ba1c91823a296447528791b89a6504947fd5c","versionType":"git","status":"affected"},{"version":"96d8e90382dc336b5de401164597edfdc2e8d9f1","lessThan":"5832c55b3c824ba2fe9c36ac3c411baddcce053e","versionType":"git","status":"affected"},{"version":"96d8e90382dc336b5de401164597edfdc2e8d9f1","lessThan":"c43122fef328a70045fe7621c06de6b2b8e19264","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["drivers/net/can/usb/esd_usb.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"2.6.36","status":"affected"},{"version":"0","lessThan":"2.6.36","versionType":"semver","status":"unaffected"},{"version":"6.1.178","lessThanOrEqual":"6.1.*","versionType":"semver","status":"unaffected"},{"version":"6.6.145","lessThanOrEqual":"6.6.*","versionType":"semver","status":"unaffected"},{"version":"6.12.97","lessThanOrEqual":"6.12.*","versionType":"semver","status":"unaffected"},{"version":"6.18.40","lessThanOrEqual":"6.18.*","versionType":"semver","status":"unaffected"},{"version":"7.1.5","lessThanOrEqual":"7.1.*","versionType":"semver","status":"unaffected"},{"version":"7.2-rc4","lessThanOrEqual":"*","versionType":"original_commit_for_fix","status":"unaffected"}]}]
[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["drivers/net/can/usb/esd_usb.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"96d8e90382dc336b5de401164597edfdc2e8d9f1","lessThan":"aa1d005927db38af783c1a4a8a00a39e0229ab2d","versionType":"git","status":"affected"},{"version":"96d8e90382dc336b5de401164597edfdc2e8d9f1","lessThan":"a02e1d8f191324583599544d54e59e6a2b74bb0e","versionType":"git","status":"affected"},{"version":"96d8e90382dc336b5de401164597edfdc2e8d9f1","lessThan":"a3314f10369df70925140f59bbe069718f65a0b9","versionType":"git","status":"affected"},{"version":"96d8e90382dc336b5de401164597edfdc2e8d9f1","lessThan":"765ba1c91823a296447528791b89a6504947fd5c","versionType":"git","status":"affected"},{"version":"96d8e90382dc336b5de401164597edfdc2e8d9f1","lessThan":"5832c55b3c824ba2fe9c36ac3c411baddcce053e","versionType":"git","status":"affected"},{"version":"96d8e90382dc336b5de401164597edfdc2e8d9f1","lessThan":"c43122fef328a70045fe7621c06de6b2b8e19264","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["drivers/net/can/usb/esd_usb.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"2.6.36","status":"affected"},{"version":"0","lessThan":"2.6.36","versionType":"semver","status":"unaffected"},{"version":"6.1.178","lessThanOrEqual":"6.1.*","versionType":"semver","status":"unaffected"},{"version":"6.6.145","lessThanOrEqual":"6.6.*","versionType":"semver","status":"unaffected"},{"version":"6.12.97","lessThanOrEqual":"6.12.*","versionType":"semver","status":"unaffected"},{"version":"6.18.40","lessThanOrEqual":"6.18.*","versionType":"semver","status":"unaffected"},{"version":"7.1.5","lessThanOrEqual":"7.1.*","versionType":"semver","status":"unaffected"},{"version":"7.2","lessThanOrEqual":"*","versionType":"original_commit_for_fix","status":"unaffected"}]}]
CVE Modified by kernel.org
8/08/2026 11:16:33 AM
Action
Type
Old Value
New Value
Added
CVSS V3.1
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
New CVE Received from kernel.org
8/06/2026 4:16:33 AM
Action
Type
Old Value
New Value
Added
Description
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.
Added
Reference
https://git.kernel.org/stable/c/5832c55b3c824ba2fe9c36ac3c411baddcce053e
Added
Reference
https://git.kernel.org/stable/c/765ba1c91823a296447528791b89a6504947fd5c
Added
Reference
https://git.kernel.org/stable/c/a02e1d8f191324583599544d54e59e6a2b74bb0e
Added
Reference
https://git.kernel.org/stable/c/a3314f10369df70925140f59bbe069718f65a0b9
Added
Reference
https://git.kernel.org/stable/c/aa1d005927db38af783c1a4a8a00a39e0229ab2d
Added
Reference
https://git.kernel.org/stable/c/c43122fef328a70045fe7621c06de6b2b8e19264
Added
Affected
[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["drivers/net/can/usb/esd_usb.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"96d8e90382dc336b5de401164597edfdc2e8d9f1","lessThan":"aa1d005927db38af783c1a4a8a00a39e0229ab2d","versionType":"git","status":"affected"},{"version":"96d8e90382dc336b5de401164597edfdc2e8d9f1","lessThan":"a02e1d8f191324583599544d54e59e6a2b74bb0e","versionType":"git","status":"affected"},{"version":"96d8e90382dc336b5de401164597edfdc2e8d9f1","lessThan":"a3314f10369df70925140f59bbe069718f65a0b9","versionType":"git","status":"affected"},{"version":"96d8e90382dc336b5de401164597edfdc2e8d9f1","lessThan":"765ba1c91823a296447528791b89a6504947fd5c","versionType":"git","status":"affected"},{"version":"96d8e90382dc336b5de401164597edfdc2e8d9f1","lessThan":"5832c55b3c824ba2fe9c36ac3c411baddcce053e","versionType":"git","status":"affected"},{"version":"96d8e90382dc336b5de401164597edfdc2e8d9f1","lessThan":"c43122fef328a70045fe7621c06de6b2b8e19264","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["drivers/net/can/usb/esd_usb.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"2.6.36","status":"affected"},{"version":"0","lessThan":"2.6.36","versionType":"semver","status":"unaffected"},{"version":"6.1.178","lessThanOrEqual":"6.1.*","versionType":"semver","status":"unaffected"},{"version":"6.6.145","lessThanOrEqual":"6.6.*","versionType":"semver","status":"unaffected"},{"version":"6.12.97","lessThanOrEqual":"6.12.*","versionType":"semver","status":"unaffected"},{"version":"6.18.40","lessThanOrEqual":"6.18.*","versionType":"semver","status":"unaffected"},{"version":"7.1.5","lessThanOrEqual":"7.1.*","versionType":"semver","status":"unaffected"},{"version":"7.2-rc4","lessThanOrEqual":"*","versionType":"original_commit_for_fix","status":"unaffected"}]}]
Quick Info
CVE Dictionary Entry: CVE-2026-64585 NVD
Published Date: 08/06/2026 NVD
Last Modified: 08/23/2026
Source: kernel.org
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