CVE-2026-31436

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-04-22. NVD baseline CVSS 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.8Exploit: None knownExposed: 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:

dmaengine: idxd: fix possible wrong descriptor completion in llist_abort_desc()

At the end of this function, d is the traversal cursor of flist, but the code completes found instead. This can lead to issues such as NULL pointer dereferences, double completion, or descriptor leaks.

Fix this by completing d instead of found in the final list_for_each_entry_safe() loop.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
49(Track)
EG Risk 49/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity98% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
38%
KEV
Not listed

Published

April 22, 2026

Last Modified

August 5, 2026

Advisory Details (4)

Auto-updated Sep 2, 2026
No patch confirmed yet.
generic

dmaengine: idxd: fix possible wrong descriptor completion in llist_abort_desc() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/e1c9866173c5f8521f2d0768547a01508cb9ff27
generic

dmaengine: idxd: fix possible wrong descriptor completion in llist_abort_desc() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/0e4f43779d550e559be13a5cdb763bad92c4cc99
generic

dmaengine: idxd: fix possible wrong descriptor completion in llist_abort_desc() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/82656e8daf8de00935ae91b91bed43f4d6e0d644
generic

dmaengine: idxd: fix possible wrong descriptor completion in llist_abort_desc() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/e21da2ad8844585040fe4b82be1ad2fe99d40074

Vendor Advisories for CVE-2026-31436(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 / EcosystemFixed in / PatchReleasedSource
linuxKernel @ 6.12.80—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.

Affected Packages

(2 across 2 ecosystems)
Debian:13(1)
PackageVulnerable rangeFixed inDependents
linux6.12.38-1 ... 6.12.85-1~bpo12+1 (17 versions)6.12.85-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
linux6.12.100-1 ... 6.19~rc8-1~exp1 (121 versions)6.19.11-1—

Weakness Classification(1)

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

All Vendor Advisories

(20)

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 / 110× 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.

Showing the most recent 100 of 329 total refreshes for this CVE.

  1. 2026-09-04 05:06 UTCEPSS rescore
  2. 2026-09-02 14:11 UTCEPSS rescore
  3. 2026-09-02 13:04 UTCOSV refresh
  4. 2026-09-01 13:53 UTCEPSS rescore
  5. 2026-09-01 04:39 UTCEPSS rescore
  6. 2026-09-01 04:39 UTCEPSS rescore
  7. 2026-08-30 19:17 UTCEPSS rescore
  8. 2026-08-30 01:22 UTCEPSS rescore
  9. 2026-08-28 21:41 UTCEPSS rescore
  10. 2026-08-27 14:25 UTCEPSS rescore
  11. 2026-08-26 14:46 UTCEPSS rescore
  12. 2026-08-25 13:49 UTCEPSS rescore
  13. 2026-08-24 14:17 UTCEPSS rescore
  14. 2026-08-23 00:19 UTCEPSS rescore
  15. 2026-08-21 23:49 UTCEPSS rescore
  16. 2026-08-20 22:55 UTCEPSS rescore
  17. 2026-08-20 22:55 UTCEPSS rescore
  18. 2026-08-19 17:03 UTCEPSS rescore
  19. 2026-08-18 13:48 UTCEPSS rescore
  20. 2026-08-17 13:47 UTCEPSS rescore
  21. 2026-08-16 14:56 UTCEPSS rescore
  22. 2026-08-16 09:50 UTCVendor advisory
  23. 2026-08-16 09:50 UTCGHSA enrichment
  24. 2026-08-16 06:01 UTCEG score recompute
  25. 2026-08-16 06:01 UTCVendor advisory
Show 75 more
  1. 2026-08-16 06:01 UTCGHSA enrichment
  2. 2026-08-16 02:14 UTCEPSS rescore
  3. 2026-08-15 01:30 UTCEPSS rescore
  4. 2026-08-14 23:22 UTCVendor advisory
  5. 2026-08-14 23:22 UTCGHSA enrichment
  6. 2026-08-14 19:34 UTCVendor advisory
  7. 2026-08-14 19:34 UTCGHSA enrichment
  8. 2026-08-14 15:45 UTCVendor advisory
  9. 2026-08-14 15:45 UTCGHSA enrichment
  10. 2026-08-14 11:57 UTCVendor advisory
  11. 2026-08-14 11:57 UTCGHSA enrichment
  12. 2026-08-14 08:09 UTCVendor advisory
  13. 2026-08-14 08:09 UTCGHSA enrichment
  14. 2026-08-14 04:20 UTCEG score recompute
  15. 2026-08-14 04:20 UTCVendor advisory
  16. 2026-08-14 04:20 UTCGHSA enrichment
  17. 2026-08-13 22:00 UTCEPSS rescore
  18. 2026-08-13 08:40 UTCVendor advisory
  19. 2026-08-13 08:40 UTCGHSA enrichment
  20. 2026-08-13 02:11 UTCVendor advisory
  21. 2026-08-13 02:11 UTCGHSA enrichment
  22. 2026-08-12 22:22 UTCVendor advisory
  23. 2026-08-12 22:22 UTCGHSA enrichment
  24. 2026-08-12 18:32 UTCEG score recompute
  25. 2026-08-12 18:32 UTCVendor advisory
  26. 2026-08-12 18:32 UTCGHSA enrichment
  27. 2026-08-12 13:50 UTCEPSS rescore
  28. 2026-08-12 00:36 UTCVendor advisory
  29. 2026-08-12 00:36 UTCGHSA enrichment
  30. 2026-08-11 20:35 UTCVendor advisory
  31. 2026-08-11 20:35 UTCGHSA enrichment
  32. 2026-08-11 16:47 UTCEG score recompute
  33. 2026-08-11 16:47 UTCVendor advisory
  34. 2026-08-11 16:47 UTCGHSA enrichment
  35. 2026-08-11 06:11 UTCVendor advisory
  36. 2026-08-11 06:11 UTCGHSA enrichment
  37. 2026-08-11 02:22 UTCEG score recompute
  38. 2026-08-11 02:22 UTCVendor advisory
  39. 2026-08-11 02:22 UTCGHSA enrichment
  40. 2026-08-11 00:00 UTCEPSS rescore
  41. 2026-08-10 11:52 UTCVendor advisory
  42. 2026-08-10 11:52 UTCGHSA enrichment
  43. 2026-08-10 07:45 UTCVendor advisory
  44. 2026-08-10 07:45 UTCGHSA enrichment
  45. 2026-08-10 03:56 UTCVendor advisory
  46. 2026-08-10 03:56 UTCGHSA enrichment
  47. 2026-08-10 00:08 UTCVendor advisory
  48. 2026-08-10 00:08 UTCGHSA enrichment
  49. 2026-08-09 20:19 UTCVendor advisory
  50. 2026-08-09 20:19 UTCGHSA enrichment
  51. 2026-08-09 16:31 UTCEG score recompute
  52. 2026-08-09 16:31 UTCVendor advisory
  53. 2026-08-09 16:30 UTCGHSA enrichment
  54. 2026-08-09 13:46 UTCEPSS rescore
  55. 2026-08-09 12:42 UTCVendor advisory
  56. 2026-08-09 12:42 UTCGHSA enrichment
  57. 2026-08-09 07:22 UTCVendor advisory
  58. 2026-08-09 07:22 UTCGHSA enrichment
  59. 2026-08-09 03:34 UTCEG score recompute
  60. 2026-08-09 03:34 UTCVendor advisory
  61. 2026-08-09 03:34 UTCGHSA enrichment
  62. 2026-08-08 16:37 UTCEPSS rescore
  63. 2026-08-08 11:44 UTCVendor advisory
  64. 2026-08-08 11:44 UTCGHSA enrichment
  65. 2026-08-08 07:53 UTCVendor advisory
  66. 2026-08-08 07:53 UTCGHSA enrichment
  67. 2026-08-08 04:04 UTCVendor advisory
  68. 2026-08-08 04:04 UTCGHSA enrichment
  69. 2026-08-08 00:16 UTCVendor advisory
  70. 2026-08-08 00:16 UTCGHSA enrichment
  71. 2026-08-07 20:27 UTCVendor advisory
  72. 2026-08-07 20:27 UTCGHSA enrichment
  73. 2026-08-07 16:39 UTCEG score recompute
  74. 2026-08-07 16:39 UTCVendor advisory
  75. 2026-08-07 16:39 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2026-31436?
CVE-2026-31436 is a critical vulnerability published on April 22, 2026. In the Linux kernel, the following vulnerability has been resolved: dmaengine: idxd: fix possible wrong descriptor completion in llistabortdesc() At the end of this function, d is the traversal cursor of flist, but the code completes found instead. This can lead to issues such as NULL pointer…
When was CVE-2026-31436 disclosed?
CVE-2026-31436 was first published in the National Vulnerability Database on April 22, 2026, with the most recent update on August 5, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-31436 actively exploited?
CVE-2026-31436 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 61.9% of all scored CVEs.
What is the CVSS score of CVE-2026-31436?
CVE-2026-31436 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2026-31436?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-31436, 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.

Dependency Blast Radius

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