CVE-2026-46084

HIGHNVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-05-27. NVD baseline CVSS 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 4 sources updated this week
7.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.8Exploit: NoneExposed: 0

A fix is available — apply it.

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

RDMA/mana_ib: Disable RX steering on RSS QP destroy

When an RSS QP is destroyed (e.g. DPDK exit), mana_ib_destroy_qp_rss() destroys the RX WQ objects but does not disable vPort RX steering in firmware. This leaves stale steering configuration that still points to the destroyed RX objects.

If traffic continues to arrive (e.g. peer VM is still transmitting) and the VF interface is subsequently brought up (mana_open), the firmware may deliver completions using stale CQ IDs from the old RX objects. These CQ IDs can be reused by the ethernet driver for new TX CQs, causing RX completions to land on TX CQs:

WARNING: mana_poll_tx_cq+0x1b8/0x220 [mana] (is_sq == false) WARNING: mana_gd_process_eq_events+0x209/0x290 (cq_table lookup fails)

Fix this by disabling vPort RX steering before destroying RX WQ objects. Note that mana_fence_rqs() cannot be used here because the fence completion is delivered on the CQ, which is polled by user-mode (e.g. DPDK) and not visible to the kernel driver.

Refactor the disable logic into a shared mana_disable_vport_rx() in mana_en, exported for use by mana_ib, replacing the duplicate code. The ethernet driver's mana_dealloc_queues() is also updated to call this common function.

CVSS v3
7.8
EG Score
7.8(medium)
EPSS
2.9%
KEV
Not listed

Published

May 27, 2026

Last Modified

June 24, 2026

Advisory Details (5)

Auto-updated Jun 24, 2026
No patch confirmed yet.
generic

RDMA/mana_ib: Disable RX steering on RSS QP destroy - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/f1ccc4d500a0b87a5599343fc2f798048836e184
generic

RDMA/mana_ib: Disable RX steering on RSS QP destroy - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/dbeb256e8dd87233d891b170c0b32a6466467036
generic

RDMA/mana_ib: Disable RX steering on RSS QP destroy - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/8ba804869382ce307f2a15f5f6f2adfd791f41dc
generic

RDMA/mana_ib: Disable RX steering on RSS QP destroy - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/6a2d6273b6c3581ce7b90ce17b5cbb4efd19438f
generic

RDMA/mana_ib: Disable RX steering on RSS QP destroy - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/3be5ed233de03b00ae868cfc06e95331d8d9007c

Vendor Advisories for CVE-2026-46084(2)

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

Patch Availability(4)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-virtual-hwe-26.04-edge (7.0.0-27.27) @ resolute2026-07-11ubuntu
ubuntulinux-tools-oem-7.0 (7.0.0-1008.8) @ resolute2026-07-11ubuntu
ubuntulinux-tools-raspi-realtime-7.0 (7.0.0-1014.14) @ resolute2026-07-11ubuntu
ubuntulinux-tools-nvidia-hwe-24.04-edge (7.0.0-1013.13) @ resolute2026-07-11ubuntu

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.

Additional Vendor Advisories

(4)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 10× in last 7d / 78× 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 118 total refreshes for this CVE.

  1. 2026-07-15 16:57 UTCEPSS rescore
  2. 2026-07-15 02:00 UTCEPSS rescore
  3. 2026-07-13 22:30 UTCEPSS rescore
  4. 2026-07-13 06:13 UTCEPSS rescore
  5. 2026-07-12 05:46 UTCEPSS rescore
  6. 2026-07-11 23:29 UTCEG score recompute
  7. 2026-07-11 23:29 UTCVendor advisory
  8. 2026-07-11 23:29 UTCGHSA enrichment
  9. 2026-07-11 08:27 UTCEPSS rescore
  10. 2026-07-09 19:10 UTCEPSS rescore
  11. 2026-07-08 23:50 UTCEG score recompute
  12. 2026-07-08 23:50 UTCVendor advisory
  13. 2026-07-08 23:50 UTCGHSA enrichment
  14. 2026-07-08 15:16 UTCEPSS rescore
  15. 2026-07-07 13:46 UTCEPSS rescore
  16. 2026-07-06 16:27 UTCEPSS rescore
  17. 2026-07-06 02:23 UTCEPSS rescore
  18. 2026-07-05 02:30 UTCEPSS rescore
  19. 2026-07-04 06:31 UTCEPSS rescore
  20. 2026-07-01 15:07 UTCEPSS rescore
  21. 2026-07-01 10:10 UTCEG score recompute
  22. 2026-07-01 10:10 UTCVendor advisory
  23. 2026-07-01 10:10 UTCGHSA enrichment
  24. 2026-06-30 23:22 UTCEPSS rescore
  25. 2026-06-30 03:20 UTCEG score recompute
Show 75 more
  1. 2026-06-30 03:20 UTCVendor advisory
  2. 2026-06-30 03:20 UTCGHSA enrichment
  3. 2026-06-29 14:18 UTCEG score recompute
  4. 2026-06-29 14:18 UTCVendor advisory
  5. 2026-06-29 14:18 UTCGHSA enrichment
  6. 2026-06-29 14:06 UTCEPSS rescore
  7. 2026-06-29 14:06 UTCEPSS rescore
  8. 2026-06-28 16:40 UTCEG score recompute
  9. 2026-06-28 16:40 UTCVendor advisory
  10. 2026-06-28 16:40 UTCGHSA enrichment
  11. 2026-06-28 14:07 UTCEPSS rescore
  12. 2026-06-28 05:19 UTCEG score recompute
  13. 2026-06-28 05:19 UTCVendor advisory
  14. 2026-06-28 05:19 UTCGHSA enrichment
  15. 2026-06-28 04:56 UTCEPSS rescore
  16. 2026-06-28 04:56 UTCEPSS rescore
  17. 2026-06-27 18:29 UTCEG score recompute
  18. 2026-06-27 18:29 UTCVendor advisory
  19. 2026-06-27 18:29 UTCGHSA enrichment
  20. 2026-06-27 05:49 UTCEG score recompute
  21. 2026-06-27 05:49 UTCVendor advisory
  22. 2026-06-27 05:49 UTCGHSA enrichment
  23. 2026-06-27 03:08 UTCEPSS rescore
  24. 2026-06-26 17:05 UTCEG score recompute
  25. 2026-06-26 17:05 UTCVendor advisory
  26. 2026-06-26 17:05 UTCGHSA enrichment
  27. 2026-06-25 23:00 UTCEG score recompute
  28. 2026-06-25 23:00 UTCVendor advisory
  29. 2026-06-25 23:00 UTCGHSA enrichment
  30. 2026-06-25 13:49 UTCEPSS rescore
  31. 2026-06-25 11:48 UTCEG score recompute
  32. 2026-06-25 11:48 UTCVendor advisory
  33. 2026-06-25 11:48 UTCGHSA enrichment
  34. 2026-06-25 00:59 UTCEG score recompute▲ 7.80
  35. 2026-06-25 00:59 UTCVendor advisory
  36. 2026-06-25 00:58 UTCGHSA enrichment
  37. 2026-06-24 18:02 UTCNVD updateCVSS v3 → 7.8 · severity → HIGH
  38. 2026-06-24 14:05 UTCEPSS rescore
  39. 2026-06-23 21:33 UTCEPSS rescore
  40. 2026-06-23 21:33 UTCEPSS rescore
  41. 2026-06-22 14:25 UTCEPSS rescore
  42. 2026-06-22 14:25 UTCEPSS rescore
  43. 2026-06-21 14:56 UTCEPSS rescore
  44. 2026-06-21 14:56 UTCEPSS rescore
  45. 2026-06-21 01:59 UTCEPSS rescore
  46. 2026-06-21 01:59 UTCEPSS rescore
  47. 2026-06-19 19:26 UTCEPSS rescore
  48. 2026-06-19 19:26 UTCEPSS rescore
  49. 2026-06-18 17:52 UTCEPSS rescore
  50. 2026-06-18 17:52 UTCEPSS rescore
  51. 2026-06-17 17:53 UTCEPSS rescore
  52. 2026-06-17 08:07 UTCGHSA enrichment
  53. 2026-06-16 17:52 UTCEPSS rescore
  54. 2026-06-15 17:49 UTCEPSS rescore
  55. 2026-06-14 23:28 UTCMITRE cvelistV5
  56. 2026-06-14 02:00 UTCVendor advisory
  57. 2026-06-14 02:00 UTCGHSA enrichment
  58. 2026-06-13 23:00 UTCEPSS rescore
  59. 2026-06-12 23:12 UTCEPSS rescore
  60. 2026-06-12 23:12 UTCEPSS rescore
  61. 2026-06-11 14:00 UTCEPSS rescore
  62. 2026-06-10 22:18 UTCEPSS rescore
  63. 2026-06-10 19:52 UTCVendor advisory
  64. 2026-06-10 19:52 UTCGHSA enrichment
  65. 2026-06-10 13:22 UTCEPSS rescore
  66. 2026-06-10 13:22 UTCEPSS rescore
  67. 2026-06-08 14:17 UTCEPSS rescore
  68. 2026-06-08 14:17 UTCEPSS rescore
  69. 2026-06-07 15:25 UTCEPSS rescore
  70. 2026-06-07 15:25 UTCEPSS rescore
  71. 2026-06-07 13:45 UTCGHSA enrichment
  72. 2026-06-06 13:47 UTCEPSS rescore
  73. 2026-06-06 13:47 UTCEPSS rescore
  74. 2026-06-05 22:47 UTCEPSS rescore
  75. 2026-06-05 06:10 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2026-46084?
CVE-2026-46084 is a high vulnerability published on May 27, 2026. In the Linux kernel, the following vulnerability has been resolved: RDMA/mana_ib: Disable RX steering on RSS QP destroy When an RSS QP is destroyed (e.g. DPDK exit), manaibdestroyqprss() destroys the RX WQ objects but does not disable vPort RX steering in firmware. This leaves stale steering…
When was CVE-2026-46084 disclosed?
CVE-2026-46084 was first published in the National Vulnerability Database on May 27, 2026, with the most recent update on June 24, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-46084 actively exploited?
CVE-2026-46084 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 2.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-46084?
CVE-2026-46084 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2026-46084?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-46084, 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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