CVE-2026-23017

MEDIUMNVD 5.55.5—
EchelonGraph scoreMEDIUM confidence

Score 5.5 from GitHub Security Advisory published 2026-01-31. NVD baseline CVSS 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
5.5
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 5.5Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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

idpf: fix error handling in the init_task on load

If the init_task fails during a driver load, we end up without vports and netdevs, effectively failing the entire process. In that state a subsequent reset will result in a crash as the service task attempts to access uninitialized resources. Following trace is from an error in the init_task where the CREATE_VPORT (op 501) is rejected by the FW:

[40922.763136] idpf 0000:83:00.0: Device HW Reset initiated [40924.449797] idpf 0000:83:00.0: Transaction failed (op 501) [40958.148190] idpf 0000:83:00.0: HW reset detected [40958.161202] BUG: kernel NULL pointer dereference, address: 00000000000000a8 ... [40958.168094] Workqueue: idpf-0000:83:00.0-vc_event idpf_vc_event_task [idpf] [40958.168865] RIP: 0010:idpf_vc_event_task+0x9b/0x350 [idpf] ... [40958.177932] Call Trace: [40958.178491] [40958.179040] process_one_work+0x226/0x6d0 [40958.179609] worker_thread+0x19e/0x340 [40958.180158] ? __pfx_worker_thread+0x10/0x10 [40958.180702] kthread+0x10f/0x250 [40958.181238] ? __pfx_kthread+0x10/0x10 [40958.181774] ret_from_fork+0x251/0x2b0 [40958.182307] ? __pfx_kthread+0x10/0x10 [40958.182834] ret_from_fork_asm+0x1a/0x30 [40958.183370]

Fix the error handling in the init_task to make sure the service and mailbox tasks are disabled if the error happens during load. These are started in idpf_vc_core_init(), which spawns the init_task and has no way of knowing if it failed. If the error happens on reset, following successful driver load, the tasks can still run, as that will allow the netdevs to attempt recovery through another reset. Stop the PTP callbacks either way as those will be restarted by the call to idpf_vc_core_init() during a successful reset.

CVSS v3
5.5
EG Score
5.5(medium)
EPSS
3.1%
KEV
Not listed

Published

January 31, 2026

Last Modified

March 25, 2026

References (2)

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
linuxKernel @ 6.18.6—osv

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.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 13× in last 7d / 44× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. 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. Most recent first.

  1. 2026-07-16 17:03 UTCEPSS rescore
  2. 2026-07-16 17:03 UTCEPSS rescore
  3. 2026-07-15 16:57 UTCEPSS rescore
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  7. 2026-07-13 22:30 UTCEPSS rescore
  8. 2026-07-13 10:37 UTCOSV refresh
  9. 2026-07-13 06:13 UTCEPSS rescore
  10. 2026-07-13 06:13 UTCEPSS rescore
  11. 2026-07-12 05:46 UTCEPSS rescore
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  14. 2026-07-09 19:10 UTCEPSS rescore
  15. 2026-07-08 15:15 UTCEPSS rescore
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  17. 2026-07-07 13:46 UTCEPSS rescore
  18. 2026-07-06 02:23 UTCEPSS rescore
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  20. 2026-07-05 02:30 UTCEPSS rescore
  21. 2026-07-04 06:31 UTCEPSS rescore
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  23. 2026-06-30 23:22 UTCEPSS rescore
  24. 2026-06-30 23:22 UTCEPSS rescore
  25. 2026-06-29 14:06 UTCEPSS rescore
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  1. 2026-06-28 14:07 UTCEPSS rescore
  2. 2026-06-28 14:07 UTCEPSS rescore
  3. 2026-06-28 04:56 UTCEPSS rescore
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  5. 2026-06-27 03:08 UTCEPSS rescore
  6. 2026-06-25 13:49 UTCEPSS rescore
  7. 2026-06-25 13:49 UTCEPSS rescore
  8. 2026-06-25 03:01 UTCOSV refresh
  9. 2026-06-24 14:05 UTCEPSS rescore
  10. 2026-06-24 14:05 UTCEPSS rescore
  11. 2026-06-23 21:33 UTCEPSS rescore
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  13. 2026-06-22 14:25 UTCEPSS rescore
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  15. 2026-06-21 14:56 UTCEPSS rescore
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  17. 2026-06-19 19:25 UTCEPSS rescore
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  19. 2026-06-18 17:52 UTCEPSS rescore
  20. 2026-06-17 17:53 UTCEPSS rescore
  21. 2026-06-16 17:52 UTCEPSS rescore
  22. 2026-06-15 17:48 UTCEPSS rescore
  23. 2026-06-14 23:18 UTCEPSS rescore
  24. 2026-06-13 23:00 UTCEPSS rescore
  25. 2026-06-13 23:00 UTCEPSS rescore
  26. 2026-06-12 23:12 UTCEPSS rescore
  27. 2026-06-11 14:00 UTCEPSS rescore
  28. 2026-06-10 22:18 UTCEPSS rescore
  29. 2026-06-10 13:22 UTCEPSS rescore
  30. 2026-06-08 14:17 UTCEPSS rescore
  31. 2026-06-08 14:17 UTCEPSS rescore
  32. 2026-06-07 23:12 UTCGHSA enrichment
  33. 2026-06-07 15:25 UTCEPSS rescore
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  35. 2026-06-06 13:47 UTCEPSS rescore
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  38. 2026-06-05 22:47 UTCEPSS rescore
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  41. 2026-06-04 13:12 UTCEPSS rescore
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  43. 2026-06-04 13:12 UTCEPSS rescore
  44. 2026-06-02 20:13 UTCEPSS rescore
  45. 2026-06-02 20:13 UTCEPSS rescore
  46. 2026-06-01 13:51 UTCEPSS rescore
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  48. 2026-06-01 13:51 UTCEPSS rescore
  49. 2026-05-31 22:30 UTCEPSS rescore
  50. 2026-05-31 22:30 UTCEPSS rescore
  51. 2026-05-31 00:16 UTCEPSS rescore
  52. 2026-05-31 00:16 UTCEPSS rescore
  53. 2026-05-31 00:16 UTCEPSS rescore
  54. 2026-05-29 14:56 UTCEG score recompute
  55. 2026-05-29 14:56 UTCGHSA enrichment
  56. 2026-05-29 13:44 UTCEPSS rescore
  57. 2026-05-29 13:44 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2026-23017?
CVE-2026-23017 is a medium vulnerability published on January 31, 2026. In the Linux kernel, the following vulnerability has been resolved: idpf: fix error handling in the init_task on load If the init_task fails during a driver load, we end up without vports and netdevs, effectively failing the entire process. In that state a subsequent reset will result in a crash as…
When was CVE-2026-23017 disclosed?
CVE-2026-23017 was first published in the National Vulnerability Database on January 31, 2026, with the most recent update on March 25, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-23017 actively exploited?
CVE-2026-23017 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 3.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-23017?
CVE-2026-23017 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2026-23017?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-23017, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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