CVE-2026-68372

UNRATEDCVSS · not yet scored
—
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • No CVSS published and no exploitation signals yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS v2: —Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

In the Linux kernel, the following vulnerability has been resolved:

usb: core: port: Deattach Type-C connector on component unbind

connector_unbind() is the mirror of connector_bind(), but it is missing the symmetric call to typec_deattach() that connector_bind() makes via:

if (port_dev->child) typec_attach(port_dev->connector, &port_dev->child->dev);

When a Thunderbolt dock is unplugged, two teardown paths race:

  • The component framework calls connector_unbind() first, which sets
port_dev->connector = NULL without calling typec_deattach(). This leaves port->usb2_dev/port->usb3_dev in struct typec_port pointing at the USB device that is about to be freed.
  • usb_disconnect() then calls typec_deattach(port_dev->connector, ...),
but port_dev->connector is already NULL, so the call is a no-op and port->usb2_dev is never cleared.
  • Concurrently, UCSI detects a PD partner-disconnect event and calls
typec_unregister_partner(), which reads port->usb2_dev (now a dangling pointer to freed memory) and passes it to typec_partner_unlink_device() -> sysfs_remove_link() -> dev_name() on the freed device, corrupting the typec/UCSI partner state.

This corruption leaves the Thunderbolt tunnel in an inconsistent state on the next dock hot-plug. On affected hardware the dock's I225/igc NIC fails to enumerate: AER fires a slot reset while the igc driver is still initialising ("PCIe link lost"), and the subsequent igc_reset attempt hits igc_rd32 on an already-detached device:

igc 0000:2e:00.0 eth0: PCIe link lost, device now detached igc: Failed to read reg 0x0! WARNING: CPU: 9 PID: 129 at drivers/net/ethernet/intel/igc/igc_main.c:7005 igc_rd32+0xa4/0xc0 [igc] Call Trace: igc_disable_pcie_master+0x16/0xa0 [igc] igc_reset_hw_base+0x14/0x170 [igc] igc_reset+0x63/0x110 [igc] igc_io_slot_reset+0x9e/0xd0 [igc] report_slot_reset+0x5d/0xc0 pcie_do_recovery+0x209/0x400 aer_isr_one_error_type+0x235/0x430 aer_isr+0x4e/0x80 irq_thread+0xf4/0x1f0

  • UCSI later handles the PD partner-disconnect and calls
typec_unregister_partner(), which still sees the stale port->usb2_dev and tries to remove its sysfs link a second time:

kernfs: can not remove 'typec', no directory WARNING: CPU: 6 PID: 55 at fs/kernfs/dir.c:1706 kernfs_remove_by_name_ns+0xe9/0xf0 Workqueue: events ucsi_handle_connector_change [typec_ucsi] Call Trace: sysfs_remove_link+0x19/0x50 typec_unregister_partner+0x6e/0x120 [typec] ucsi_unregister_partner+0x107/0x150 [typec_ucsi] ucsi_handle_connector_change+0x3ec/0x490 [typec_ucsi] process_one_work+0x18e/0x3e0 worker_thread+0x2e3/0x420 kthread+0x10a/0x230 ret_from_fork+0x121/0x140 ret_from_fork_asm+0x1a/0x30

With worse timing the same stale pointer is dereferenced after the backing memory is freed, turning the warning into a use-after-free.

Fix the asymmetry: call typec_deattach() before clearing port_dev->connector, matching what connector_bind() does on the bind side. typec_partner_deattach() is already protected by port->partner_link_lock, so it serialises safely with the concurrent typec_unregister_partner() path.

CVSS v3
—
EchelonGraph score
Not yet assessedNo source has published severity data for this CVE yet — no CVSS score from NVD or a CNA, no GitHub advisory, and it is not in CISA KEV. This is not a rating of zero; we cannot assess it yet.
EG Score
—
EG Risk
—
EPSS PROB
0.2%
EPSS %ILE
5th
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

EG Severity
Not assessed: no CVSS publishedA missing CVSS is not a severity of zero.
EG Likelihood
0.2% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-17). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
No SSVC decision: EchelonGraph has not assessed this CVECISA BOD 26-04: 14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source: the BOD 26-04 block below.

BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA's BOD 26-04 default) · Technical impact total (CISA's BOD 26-04 default). Where an input reads “CISA's BOD 26-04 default”, no one has published it for this CVE, and CISA's implementation guidance says: “If “Automatable” and “Technical Impact” information items about a CVE ID are not available and the CVE ID is not in the KEV Catalog, CISA will treat its values as “no” and “total,” respectively, until CISA or a third party provides metadata about the CVE ID. CISA will always provide the Vulnrichment data for a CVE ID listed in the KEV Catalog.” Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

August 10, 2026

Last Modified

August 17, 2026

References (4)

Vendor Advisories for CVE-2026-68372(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(1)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
ubuntulinux-tools-oem-7.0 (7.0.0-1013.13) @ resolute2026-10-04ubuntu

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(3 across 3 ecosystems)
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
linux-6.126.12.100-1~deb12u1
  • every version up to 6.12.101-1~deb12u1: fixed in 6.12.101-1~deb12u1
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.12.100-1 ... 6.12.96-1 (32 versions)
  • every version up to 6.12.101-1: fixed in 6.12.101-1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.12.100-1 ... 7.1~rc7-1~exp1 (161 versions)
  • every version up to 7.1.6-1: fixed in 7.1.6-1
—

All Vendor Advisories

(1)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 8× in last 7d / 40× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 1 repeat row among the latest 92 is merged into the row it repeats.

  1. 2026-10-19 16:32 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  2. 2026-10-18 16:32 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  3. 2026-10-18 03:19 UTCEG score recompute
  4. 2026-10-17 16:35 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  5. 2026-10-16 16:43 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  6. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  7. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  8. 2026-10-13 16:35 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  9. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  10. 2026-10-12 15:45 UTCEG score recompute
  11. 2026-10-11 19:30 UTCEG score recompute
  12. 2026-10-11 16:45 UTCEG score recompute
  13. 2026-10-11 14:06 UTCEG score recompute
  14. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  15. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  16. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  17. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  18. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  19. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  20. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  21. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  22. 2026-10-04 05:21 UTCVendor advisory
  23. 2026-10-04 05:21 UTCGHSA enrichmentGHSA-3j8g-7xhm-68vv
  24. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  25. 2026-10-02 17:56 UTCEPSS rescoreEPSS 0.2% · 10th percentile
Show 66 more
  1. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  2. 2026-09-30 22:38 UTCEG score recompute
  3. 2026-09-30 22:38 UTCVendor advisory
  4. 2026-09-30 22:37 UTCGHSA enrichmentGHSA-3j8g-7xhm-68vv
  5. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  6. 2026-09-28 13:52 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  7. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  8. 2026-09-27 13:00 UTCVendor advisory
  9. 2026-09-27 13:00 UTCGHSA enrichmentGHSA-3j8g-7xhm-68vv
  10. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  11. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  12. 2026-09-22 21:17 UTCVendor advisory
  13. 2026-09-22 21:17 UTCGHSA enrichmentGHSA-3j8g-7xhm-68vv
  14. 2026-09-21 21:09 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  15. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  16. 2026-09-19 13:15 UTCVendor advisory
  17. 2026-09-19 13:15 UTCGHSA enrichmentGHSA-3j8g-7xhm-68vv
  18. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  19. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  20. 2026-09-16 07:03 UTCVendor advisory
  21. 2026-09-16 07:03 UTCGHSA enrichmentGHSA-3j8g-7xhm-68vv
  22. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  23. 2026-09-13 00:51 UTCVendor advisory
  24. 2026-09-13 00:51 UTCGHSA enrichmentGHSA-3j8g-7xhm-68vv
  25. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  26. 2026-09-11 09:37 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  27. 2026-09-09 18:27 UTCVendor advisory
  28. 2026-09-09 18:27 UTCGHSA enrichmentGHSA-3j8g-7xhm-68vv
  29. 2026-09-08 22:01 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  30. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  31. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  32. 2026-09-06 09:22 UTCGHSA enrichmentGHSA-3j8g-7xhm-68vv
  33. 2026-09-05 15:31 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  34. 2026-09-04 05:07 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  35. 2026-09-03 02:52 UTCGHSA enrichmentGHSA-3j8g-7xhm-68vv
  36. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  37. 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  38. 2026-09-01 04:40 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  39. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  40. 2026-08-30 07:26 UTCGHSA enrichmentGHSA-3j8g-7xhm-68vv
  41. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  42. 2026-08-28 21:42 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  43. 2026-08-27 01:11 UTCGHSA enrichmentGHSA-3j8g-7xhm-68vv
  44. 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  45. 2026-08-23 18:59 UTCGHSA enrichmentGHSA-3j8g-7xhm-68vv
  46. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  47. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  48. 2026-08-20 22:56 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  49. 2026-08-20 12:48 UTCGHSA enrichmentGHSA-3j8g-7xhm-68vv
  50. 2026-08-19 17:04 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  51. 2026-08-18 13:49 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  52. 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  53. 2026-08-17 06:32 UTCGHSA enrichmentGHSA-3j8g-7xhm-68vv
  54. 2026-08-17 06:18 UTCNVD update
  55. 2026-08-17 05:36 UTCGHSA enrichmentGHSA-3j8g-7xhm-68vv
  56. 2026-08-17 05:24 UTCMITRE cvelistV5
  57. 2026-08-17 01:48 UTCGHSA enrichmentGHSA-3j8g-7xhm-68vv
  58. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  59. 2026-08-15 01:30 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  60. 2026-08-13 22:00 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  61. 2026-08-13 19:36 UTCEG score recompute
  62. 2026-08-13 19:36 UTCGHSA enrichmentGHSA-3j8g-7xhm-68vv
  63. 2026-08-12 13:51 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  64. 2026-08-10 13:24 UTCNVD update
  65. 2026-08-10 12:18 UTCEG score recompute
  66. 2026-08-10 12:17 UTCMITRE cvelistV5first tracked

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Frequently asked(4)

What is CVE-2026-68372?
CVE-2026-68372 is a vulnerability whose severity is not yet rated; its CVE record was published on August 10, 2026. In the Linux kernel, the following vulnerability has been resolved: usb: core: port: Deattach Type-C connector on component unbind connectorunbind() is the mirror of connectorbind(), but it is missing the symmetric call to typecdeattach() that connectorbind() makes via: if (port_dev->child)…
When was the CVE record for CVE-2026-68372 published?
The CVE record for CVE-2026-68372 was published on August 10, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of August 17, 2026; the record at its source may have been updated since.
Is CVE-2026-68372 actively exploited?
CVE-2026-68372 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (5th percentile of EPSS-scored CVEs).
How do I remediate CVE-2026-68372?
A fix for CVE-2026-68372 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-68372 are linked in the Vendor Advisories panel on this page.

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