CVE-2026-64585
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
can: esd_usb: kill anchored URBs before freeing netdevs
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.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 96d8e90382dc336b5de401164597edfdc2e8d9f1 | affected | git | d12f6add48f2da15c8c8281961d3faad804c76cf | Unavailable | None listed |
| 96d8e90382dc336b5de401164597edfdc2e8d9f1 | affected | git | aa1d005927db38af783c1a4a8a00a39e0229ab2d | Unavailable | None listed |
| 96d8e90382dc336b5de401164597edfdc2e8d9f1 | affected | git | a02e1d8f191324583599544d54e59e6a2b74bb0e | Unavailable | None listed |
| 96d8e90382dc336b5de401164597edfdc2e8d9f1 | affected | git | a3314f10369df70925140f59bbe069718f65a0b9 | Unavailable | None listed |
| 96d8e90382dc336b5de401164597edfdc2e8d9f1 | affected | git | 765ba1c91823a296447528791b89a6504947fd5c | Unavailable | None listed |
| 96d8e90382dc336b5de401164597edfdc2e8d9f1 | affected | git | 5832c55b3c824ba2fe9c36ac3c411baddcce053e | Unavailable | None listed |
| 96d8e90382dc336b5de401164597edfdc2e8d9f1 | affected | git | c43122fef328a70045fe7621c06de6b2b8e19264 | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 2.6.36 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 2.6.36 | Unavailable | None listed |
| 5.15.217 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.178 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.145 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.97 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.40 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.1.5 | unaffected | semver | Unavailable | 7.1.* | None listed |
| 7.2 | unaffected | original_commit_for_fix | Unavailable | * | None listed |