CVE-2026-90388

HIGHPre-NVD 7.87.8—
EchelonGraph scoreHIGH confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-09-17. A secondary CVSS source baseline 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
7.8EG
EchelonGraph verdictPlan mitigationSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 7.8Exploit: None knownExposed services: Not assessed

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

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

iommu/dma: Check atomic pool allocation result directly

The non-blocking, non-coherent allocation path uses dma_alloc_from_pool(), which returns the allocated page and fills cpu_addr only on success.

Do not rely on cpu_addr to detect allocation failure in this path. Check the returned page directly before using it for the IOMMU mapping.

CVSS v3
7.8
EG Score
7.8HIGHhigh confidence
EG Risk
40
EG Risk 40/100CISA SSVC

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
Severity78% × 45%
Exploitation0% × 40%
Automatability30% × 15%
CISA SSVC: Track at low or medium mission impact; Track or Attend at high (mission-essential systems).
Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix.
EPSS PROB
0.2%
EPSS %ILE
6th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track or Attend at high (mission-essential systems).

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix.

Exploitation none (no KEV listing, exploit record or EPSS ≥ 50%) · Automatable unknown (not published for this CVE) · Technical impact partial (CVSS below 9.0). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

September 17, 2026

Last Modified

September 18, 2026

Advisory Details (8)

Auto-updated Sep 18, 2026
No patch confirmed yet.
generic

iommu/dma: Check atomic pool allocation result directly - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/af95a0ebc0a0db0762be75f51eadf770bad01aaa
generic

iommu/dma: Check atomic pool allocation result directly - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/8c486293ddd0af60991408149fc3e964ea888dc4
generic

iommu/dma: Check atomic pool allocation result directly - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/fb0b39287ba894dbdfac2901c51788b63f5c2291
generic

iommu/dma: Check atomic pool allocation result directly - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/a4ace31d732b657d774e31fb444c0c27d42c78e5
generic

iommu/dma: Check atomic pool allocation result directly - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/06dffc96693083dda3412311406e558cf27f1574
generic

iommu/dma: Check atomic pool allocation result directly - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/d56c3f955b21e5764c1497e295a5b5d0b3a40470
generic

iommu/dma: Check atomic pool allocation result directly - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/db46cb9da83a507d86d2bb080bdb09c865da3d0a
generic

iommu/dma: Check atomic pool allocation result directly - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/ac9cd0a669b8be5d178dbd471b0d68039dac58b5

Vendor Advisories for CVE-2026-90388(2)

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

Affected Packages

(4 across 3 ecosystems)
Debian:12(2)
PackageVulnerable rangeFix by version rangeDependents
linux6.1.106-1 ... 7.2~rc7-1~exp1 (360 versions)
  • every version on: no fix on record
—
linux-6.126.12.100-1~deb12u1, 6.12.101-1~deb12u1, 6.12.107-1~deb12u1
  • every version up to 6.12.111-1~deb12u1: fixed in 6.12.111-1~deb12u1
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.12.100-1 ... 6.12.96-1 (35 versions)
  • every version up to 6.12.111-1: fixed in 6.12.111-1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.12.100-1 ... 7.2~rc7-1~exp1 (179 versions)
  • every version up to 7.2.6-1: fixed in 7.2.6-1
—

Data Freshness Timeline

(refreshed 36× in last 7d / 97× 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. 2026-10-04 23:22 UTCEPSS rescore
  2. 2026-10-04 22:55 UTCGHSA enrichment
  3. 2026-10-04 10:26 UTCVendor advisory
  4. 2026-10-04 10:26 UTCGHSA enrichment
  5. 2026-10-03 21:56 UTCEG score recompute
  6. 2026-10-03 21:56 UTCVendor advisory
  7. 2026-10-03 21:56 UTCGHSA enrichment
  8. 2026-10-03 09:18 UTCVendor advisory
  9. 2026-10-03 09:18 UTCGHSA enrichment
  10. 2026-10-02 20:40 UTCEG score recompute
  11. 2026-10-02 20:40 UTCVendor advisory
  12. 2026-10-02 20:40 UTCGHSA enrichment
  13. 2026-10-02 07:48 UTCEG score recompute
  14. 2026-10-02 07:48 UTCVendor advisory
  15. 2026-10-02 07:48 UTCGHSA enrichment
  16. 2026-10-01 19:51 UTCEPSS rescore
  17. 2026-10-01 19:17 UTCVendor advisory
  18. 2026-10-01 19:17 UTCGHSA enrichment
  19. 2026-10-01 06:47 UTCVendor advisory
  20. 2026-10-01 06:47 UTCGHSA enrichment
  21. 2026-09-30 18:15 UTCEG score recompute
  22. 2026-09-30 18:15 UTCGHSA enrichment
  23. 2026-09-30 15:04 UTCEPSS rescore
  24. 2026-09-30 05:41 UTCVendor advisory
  25. 2026-09-30 05:41 UTCGHSA enrichment
Show 72 more
  1. 2026-09-29 17:10 UTCEG score recompute
  2. 2026-09-29 17:10 UTCVendor advisory
  3. 2026-09-29 17:10 UTCGHSA enrichment
  4. 2026-09-29 04:41 UTCEG score recompute
  5. 2026-09-29 04:41 UTCVendor advisory
  6. 2026-09-29 04:41 UTCGHSA enrichment
  7. 2026-09-28 16:10 UTCEG score recompute
  8. 2026-09-28 16:10 UTCVendor advisory
  9. 2026-09-28 16:10 UTCGHSA enrichment
  10. 2026-09-28 13:52 UTCEPSS rescore
  11. 2026-09-28 13:52 UTCEPSS rescore
  12. 2026-09-28 03:37 UTCVendor advisory
  13. 2026-09-28 03:37 UTCGHSA enrichment
  14. 2026-09-27 15:05 UTCEG score recompute
  15. 2026-09-27 15:05 UTCVendor advisory
  16. 2026-09-27 15:05 UTCGHSA enrichment
  17. 2026-09-27 13:49 UTCEPSS rescore
  18. 2026-09-27 02:35 UTCEG score recompute
  19. 2026-09-27 02:35 UTCVendor advisory
  20. 2026-09-27 02:35 UTCGHSA enrichment
  21. 2026-09-26 15:59 UTCEPSS rescore
  22. 2026-09-26 14:04 UTCVendor advisory
  23. 2026-09-26 14:04 UTCGHSA enrichment
  24. 2026-09-26 01:27 UTCEG score recompute
  25. 2026-09-26 01:27 UTCVendor advisory
  26. 2026-09-26 01:27 UTCGHSA enrichment
  27. 2026-09-25 12:57 UTCVendor advisory
  28. 2026-09-25 12:57 UTCGHSA enrichment
  29. 2026-09-25 00:28 UTCEG score recompute
  30. 2026-09-25 00:28 UTCVendor advisory
  31. 2026-09-25 00:28 UTCGHSA enrichment
  32. 2026-09-24 14:04 UTCEPSS rescore
  33. 2026-09-24 11:58 UTCVendor advisory
  34. 2026-09-24 11:58 UTCGHSA enrichment
  35. 2026-09-23 23:28 UTCEG score recompute
  36. 2026-09-23 23:28 UTCVendor advisory
  37. 2026-09-23 23:28 UTCGHSA enrichment
  38. 2026-09-23 17:54 UTCEPSS rescore
  39. 2026-09-23 10:59 UTCVendor advisory
  40. 2026-09-23 10:59 UTCGHSA enrichment
  41. 2026-09-22 22:30 UTCEG score recompute
  42. 2026-09-22 22:30 UTCVendor advisory
  43. 2026-09-22 22:30 UTCGHSA enrichment
  44. 2026-09-22 16:01 UTCEPSS rescore
  45. 2026-09-22 09:58 UTCVendor advisory
  46. 2026-09-22 09:58 UTCGHSA enrichment
  47. 2026-09-21 21:29 UTCEG score recompute
  48. 2026-09-21 21:29 UTCVendor advisory
  49. 2026-09-21 21:29 UTCGHSA enrichment
  50. 2026-09-21 21:09 UTCEPSS rescore
  51. 2026-09-21 08:59 UTCVendor advisory
  52. 2026-09-21 08:59 UTCGHSA enrichment
  53. 2026-09-20 20:29 UTCEG score recompute
  54. 2026-09-20 20:29 UTCVendor advisory
  55. 2026-09-20 20:29 UTCGHSA enrichment
  56. 2026-09-20 20:16 UTCEPSS rescore
  57. 2026-09-20 07:59 UTCVendor advisory
  58. 2026-09-20 07:59 UTCGHSA enrichment
  59. 2026-09-19 19:29 UTCEG score recompute
  60. 2026-09-19 19:29 UTCVendor advisory
  61. 2026-09-19 19:29 UTCGHSA enrichment
  62. 2026-09-19 07:00 UTCEG score recompute
  63. 2026-09-19 06:59 UTCGHSA enrichment
  64. 2026-09-18 19:28 UTCEPSS rescore
  65. 2026-09-18 18:30 UTCEG score recompute
  66. 2026-09-18 18:30 UTCGHSA enrichment
  67. 2026-09-18 18:01 UTCEG score recompute▲ 7.80
  68. 2026-09-18 18:01 UTCGHSA enrichment
  69. 2026-09-18 17:59 UTCMITRE cvelistV5CVSS v3 → 7.8 · severity → HIGH
  70. 2026-09-17 17:24 UTCNVD update
  71. 2026-09-17 16:24 UTCEG score recompute
  72. 2026-09-17 16:19 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-90388?
CVE-2026-90388 is a high vulnerability published on September 17, 2026. In the Linux kernel, the following vulnerability has been resolved: iommu/dma: Check atomic pool allocation result directly The non-blocking, non-coherent allocation path uses dmaallocfrom_pool(), which returns the allocated page and fills cpu_addr only on success. Do not rely on cpu_addr to detect…
When was CVE-2026-90388 disclosed?
CVE-2026-90388 was first published on September 17, 2026, with the most recent update on September 18, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-90388 actively exploited?
CVE-2026-90388 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (6th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-90388?
CVE-2026-90388 has a CVSS base score of 7.8 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-90388?
No fix for CVE-2026-90388 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The vendor advisories EchelonGraph has for CVE-2026-90388 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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