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
9.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 9.8Exploit: 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:

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)
EPSS
36.8%
KEV
Not listed

Published

April 22, 2026

Last Modified

May 19, 2026

Advisory Details (4)

Auto-updated Jun 21, 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/e21da2ad8844585040fe4b82be1ad2fe99d40074
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/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/0e4f43779d550e559be13a5cdb763bad92c4cc99

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.

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 11× in last 7d / 43× 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 164 total refreshes for this CVE.

  1. 2026-07-16 17:03 UTCEPSS rescore
  2. 2026-07-16 17:03 UTCEPSS rescore
  3. 2026-07-15 16:57 UTCEPSS rescore
  4. 2026-07-15 16:57 UTCEPSS rescore
  5. 2026-07-15 02:00 UTCEPSS rescore
  6. 2026-07-15 02:00 UTCEPSS rescore
  7. 2026-07-13 22:30 UTCEPSS rescore
  8. 2026-07-13 06:13 UTCEPSS rescore
  9. 2026-07-13 06:13 UTCEPSS rescore
  10. 2026-07-12 05:46 UTCEPSS rescore
  11. 2026-07-11 08:27 UTCEPSS rescore
  12. 2026-07-09 19:10 UTCEPSS rescore
  13. 2026-07-08 15:15 UTCEPSS rescore
  14. 2026-07-07 13:46 UTCEPSS rescore
  15. 2026-07-06 16:27 UTCEPSS rescore
  16. 2026-07-06 16:27 UTCEPSS rescore
  17. 2026-07-06 02:23 UTCEPSS rescore
  18. 2026-07-06 02:23 UTCEPSS rescore
  19. 2026-07-05 02:30 UTCEPSS rescore
  20. 2026-07-04 06:31 UTCEPSS rescore
  21. 2026-07-01 15:06 UTCEPSS rescore
  22. 2026-06-30 23:22 UTCEPSS rescore
  23. 2026-06-29 14:06 UTCEPSS rescore
  24. 2026-06-29 14:06 UTCEPSS rescore
  25. 2026-06-28 14:07 UTCEPSS rescore
Show 75 more
  1. 2026-06-28 14:07 UTCEPSS rescore
  2. 2026-06-28 04:56 UTCEPSS rescore
  3. 2026-06-28 04:56 UTCEPSS rescore
  4. 2026-06-27 03:08 UTCEPSS rescore
  5. 2026-06-25 13:49 UTCEPSS rescore
  6. 2026-06-25 13:49 UTCEPSS rescore
  7. 2026-06-24 14:05 UTCEPSS rescore
  8. 2026-06-23 21:33 UTCEPSS rescore
  9. 2026-06-23 21:33 UTCEPSS rescore
  10. 2026-06-22 14:25 UTCEPSS rescore
  11. 2026-06-22 14:25 UTCEPSS rescore
  12. 2026-06-21 14:56 UTCEPSS rescore
  13. 2026-06-21 14:56 UTCEPSS rescore
  14. 2026-06-21 01:59 UTCEPSS rescore
  15. 2026-06-19 19:25 UTCEPSS rescore
  16. 2026-06-19 19:25 UTCEPSS rescore
  17. 2026-06-18 17:52 UTCEPSS rescore
  18. 2026-06-18 17:52 UTCEPSS rescore
  19. 2026-06-17 17:53 UTCEPSS rescore
  20. 2026-06-16 17:52 UTCEPSS rescore
  21. 2026-06-15 17:49 UTCEPSS rescore
  22. 2026-06-15 06:46 UTCGHSA enrichment
  23. 2026-06-15 02:45 UTCGHSA enrichment
  24. 2026-06-14 23:18 UTCEPSS rescore
  25. 2026-06-14 20:43 UTCGHSA enrichment
  26. 2026-06-14 16:54 UTCGHSA enrichment
  27. 2026-06-13 23:00 UTCEPSS rescore
  28. 2026-06-12 23:12 UTCEPSS rescore
  29. 2026-06-12 23:12 UTCEPSS rescore
  30. 2026-06-12 12:41 UTCGHSA enrichment
  31. 2026-06-12 06:04 UTCGHSA enrichment
  32. 2026-06-12 02:16 UTCGHSA enrichment
  33. 2026-06-11 22:27 UTCGHSA enrichment
  34. 2026-06-11 18:39 UTCGHSA enrichment
  35. 2026-06-11 14:50 UTCGHSA enrichment
  36. 2026-06-11 14:00 UTCEPSS rescore
  37. 2026-06-10 22:18 UTCEPSS rescore
  38. 2026-06-10 19:39 UTCGHSA enrichment
  39. 2026-06-10 15:51 UTCGHSA enrichment
  40. 2026-06-10 13:22 UTCEPSS rescore
  41. 2026-06-10 12:02 UTCGHSA enrichment
  42. 2026-06-10 08:14 UTCGHSA enrichment
  43. 2026-06-10 03:54 UTCGHSA enrichment
  44. 2026-06-10 00:06 UTCGHSA enrichment
  45. 2026-06-09 17:29 UTCGHSA enrichment
  46. 2026-06-09 13:37 UTCGHSA enrichment
  47. 2026-06-09 09:49 UTCGHSA enrichment
  48. 2026-06-09 03:50 UTCGHSA enrichment
  49. 2026-06-08 14:17 UTCEPSS rescore
  50. 2026-06-08 14:17 UTCEPSS rescore
  51. 2026-06-08 11:27 UTCGHSA enrichment
  52. 2026-06-08 07:38 UTCGHSA enrichment
  53. 2026-06-08 03:50 UTCGHSA enrichment
  54. 2026-06-08 00:01 UTCGHSA enrichment
  55. 2026-06-07 19:51 UTCGHSA enrichment
  56. 2026-06-07 16:03 UTCGHSA enrichment
  57. 2026-06-07 15:25 UTCEPSS rescore
  58. 2026-06-07 15:25 UTCEPSS rescore
  59. 2026-06-07 15:25 UTCEPSS rescore
  60. 2026-06-07 12:13 UTCGHSA enrichment
  61. 2026-06-07 08:25 UTCGHSA enrichment
  62. 2026-06-07 04:37 UTCGHSA enrichment
  63. 2026-06-06 23:53 UTCGHSA enrichment
  64. 2026-06-06 13:47 UTCEPSS rescore
  65. 2026-06-06 13:47 UTCEPSS rescore
  66. 2026-06-06 13:17 UTCGHSA enrichment
  67. 2026-06-06 13:17 UTCGHSA enrichment
  68. 2026-06-06 09:28 UTCGHSA enrichment
  69. 2026-06-06 05:36 UTCGHSA enrichment
  70. 2026-06-06 00:57 UTCGHSA enrichment
  71. 2026-06-05 22:47 UTCEPSS rescore
  72. 2026-06-05 22:47 UTCEPSS rescore
  73. 2026-06-05 21:09 UTCGHSA enrichment
  74. 2026-06-05 17:19 UTCGHSA enrichment
  75. 2026-06-05 11:13 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 May 19, 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 36.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
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

Explore the affected products and dependency analysis for CVE-2026-31436

Explore →

Is Your Infrastructure Affected by CVE-2026-31436?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.