CVE-2026-46176

HIGHPre-NVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-05-28. the CNA's CVSS baseline 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:linux, epss, ghsa
Trending — 5 sources updated this week
7.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.8Exploit: None knownExposed: 0

A fix is available — apply it.

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

RDMA/mlx5: Fix error path fall-through in mlx5_ib_dev_res_srq_init()

mlx5_ib_dev_res_srq_init() allocates two SRQs, s0 and s1. When ib_create_srq() fails for s1, the error branch destroys s0 but falls through and unconditionally assigns the freed s0 and the ERR_PTR s1 to devr->s0 and devr->s1.

This leads to several problems: the lock-free fast path checks "if (devr->s1) return 0;" and treats the ERR_PTR as already initialised; users in mlx5_ib_create_qp() dereference the freed SRQ or ERR_PTR via to_msrq(devr->s0)->msrq.srqn; and mlx5_ib_dev_res_cleanup() dereferences the ERR_PTR and double-frees s0 on teardown.

Fix by adding the same goto unlock in the s1 failure path.

CVSS v3
7.8
EG Score
7.8(medium)
EG Risk
40(Track)
EG Risk 40/100SSVC: 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
Severity78% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
4%
KEV
Not listed

Published

May 28, 2026

Last Modified

September 15, 2026

Advisory Details (5)

Auto-updated Jun 3, 2026
No patch confirmed yet.
generic

RDMA/mlx5: Fix error path fall-through in mlx5_ib_dev_res_srq_init() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/c488df06bd552bb8b6e14fa0cfd5ad986c6e9525
generic

RDMA/mlx5: Fix error path fall-through in mlx5_ib_dev_res_srq_init() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/bc2cf5935b4665172235341163315905197ae91d
generic

RDMA/mlx5: Fix error path fall-through in mlx5_ib_dev_res_srq_init() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/b087913ae88256df66620f7ba0a9776716aeef7e
generic

RDMA/mlx5: Fix error path fall-through in mlx5_ib_dev_res_srq_init() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/a13c2ac4d480b734342c6fbf8249fc48afd675f3
generic

RDMA/mlx5: Fix error path fall-through in mlx5_ib_dev_res_srq_init() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/6fd93142dd1d09000c3750af08270f5792523fe9

Vendor Advisories for CVE-2026-46176(6)

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

Patch Availability(28)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-tools-oracle-lts-24.04 (6.8.0-1058.61) @ noble2026-09-15ubuntu
ubuntulinux-tools-aws-lts-24.04 (6.8.0-1061.64+1) @ noble2026-09-15ubuntu
ubuntulinux-tools-azure-lts-24.04 (6.8.0-1063.71) @ noble2026-09-15ubuntu
ubuntulinux-tools-azure-fde-lts-24.04 (6.8.0-1062.69) @ noble2026-09-15ubuntu
ubuntulinux-tools-azure-fde-6.8 (6.8.0-1062.69~22.04.1) @ jammy2026-09-15ubuntu
ubuntulinux-tools-raspi-realtime-7.0 (7.0.0-1015.15) @ resolute2026-09-15ubuntu
ubuntulinux-tools-aws-edge (6.8.0-1061.64~22.04.1) @ jammy2026-09-15ubuntu
ubuntulinux-tools-nvidia-lowlatency-64k-6.8 (6.8.0-1059.62.1) @ noble2026-09-15ubuntu
ubuntulinux-tools-azure-fips-6.8 (6.8.0-1063.71+fips2) @ noble2026-09-15ubuntu
ubuntulinux-tools-oem-7.0 (7.0.0-1009.9) @ resolute2026-09-15ubuntu
ubuntulinux-virtual-hwe-26.04-edge (7.0.0-28.28) @ resolute2026-09-15ubuntu
ubuntulinux-tools-realtime-hwe-22.04 (6.8.1-1056.57~22.04.2) @ jammy2026-09-15ubuntu
ubuntulinux-tools-oracle-7.0 (7.0.0-1008.8) @ resolute2026-09-15ubuntu
ubuntulinux-tools-azure-fde-7.0 (7.0.0-1009.9) @ resolute2026-09-15ubuntu
ubuntulinux-xilinx-zynqmp (6.8.0.1033.34) @ noble2026-09-15ubuntu
ubuntulinux-virtual-hwe-22.04-edge (6.8.0-136.136~22.04.1) @ jammy2026-09-15ubuntu
ubuntulinux-tools-nvidia-hwe-24.04-edge (7.0.0-1016.16~24.04.1) @ noble2026-09-15ubuntu
ubuntulinux-tools-nvidia-hwe-26.04 (7.0.0-2016.16) @ resolute2026-09-15ubuntu
ubuntulinux-tools-gcp-edge (7.0.0-1011.11~24.04.1) @ noble2026-09-15ubuntu
ubuntulinux-tools-oracle-edge (6.8.0-1058.61~22.04.1) @ jammy2026-09-15ubuntu
ubuntulinux-tools-raspi-realtime-6.8 (6.8.0-2050.52) @ noble2026-09-15ubuntu
ubuntulinux-virtual-hwe-24.04-edge (7.0.0-28.28~24.04.1) @ noble2026-09-15ubuntu
ubuntulinux-tools-gcp-fips-6.8 (6.8.0-1064.72+fips1) @ noble2026-09-15ubuntu
redhatkernel-0:5.14.0-570.125.1.el9_62026-07-01redhat
redhatkernel-0:6.12.0-211.29.1.el10_22026-06-30redhat
redhatkernel-0:5.14.0-687.19.1.el9_82026-06-29redhat
redhatkernel-0:6.12.0-55.84.1.el10_02026-06-29redhat
linuxKernel @ 6.6.140—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 ... 6.12.88-1~bpo12+1 (21 versions)6.12.88-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
linux6.12.100-1 ... 7.0.7-1~bpo13+1 (136 versions)7.0.7-1—

Weakness Classification(1)

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

Additional Vendor Advisories

(20)

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 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.

Showing the most recent 100 of 313 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-46176?
CVE-2026-46176 is a high vulnerability published on May 28, 2026. In the Linux kernel, the following vulnerability has been resolved: RDMA/mlx5: Fix error path fall-through in mlx5ibdevressrq_init() mlx5ibdevressrq_init() allocates two SRQs, s0 and s1. When ibcreatesrq() fails for s1, the error branch destroys s0 but falls through and unconditionally assigns the…
When was CVE-2026-46176 disclosed?
CVE-2026-46176 was first published in the National Vulnerability Database on May 28, 2026, with the most recent update on September 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-46176 actively exploited?
CVE-2026-46176 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 96.1% of all scored CVEs.
What is the CVSS score of CVE-2026-46176?
CVE-2026-46176 has a CVSS v4.0 base score of 7.8 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-46176?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-46176, 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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