CVE-2026-43056

HIGHNVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-05-01. NVD baseline CVSS 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
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:

net: mana: fix use-after-free in add_adev() error path

If auxiliary_device_add() fails, add_adev() jumps to add_fail and calls auxiliary_device_uninit(adev).

The auxiliary device has its release callback set to adev_release(), which frees the containing struct mana_adev. Since adev is embedded in struct mana_adev, the subsequent fall-through to init_fail and access to adev->id may result in a use-after-free.

Fix this by saving the allocated auxiliary device id in a local variable before calling auxiliary_device_add(), and use that saved id in the cleanup path after auxiliary_device_uninit().

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
2%
KEV
Not listed

Published

May 1, 2026

Last Modified

August 5, 2026

Advisory Details (5)

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

net: mana: fix use-after-free in add_adev() error path - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/e5a75bf026c686b91a7dc6f9c5caf5016745d1fe
generic

net: mana: fix use-after-free in add_adev() error path - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/d88541ffd56d62a61e77209080001eddd4d69815
generic

net: mana: fix use-after-free in add_adev() error path - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/c4ea7d8907cf72b259bf70bd8c2e791e1c4ff70f
generic

net: mana: fix use-after-free in add_adev() error path - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/5f4061f8225d18695e5afe9bbf1cb7bd673d7872
generic

net: mana: fix use-after-free in add_adev() error path - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/43f5b19fd190fea20d052bc84741b28031d5baa9

Vendor Advisories for CVE-2026-43056(4)

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

Patch Availability(19)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-tools-azure-fde-lts-24.04 (6.8.0-1062.69) @ noble2026-08-23ubuntu
ubuntulinux-tools-nvidia-lowlatency-64k-6.8 (6.8.0-1059.62.1) @ noble2026-08-23ubuntu
ubuntulinux-tools-azure-lts-24.04 (6.8.0-1063.71) @ noble2026-08-23ubuntu
ubuntulinux-tools-aws-lts-24.04 (6.8.0-1061.64+1) @ noble2026-08-23ubuntu
ubuntulinux-tools-oracle-edge (6.8.0-1058.61~22.04.1) @ jammy2026-08-23ubuntu
ubuntulinux-virtual-6.8 (6.8.0-136.136) @ noble2026-08-23ubuntu
ubuntulinux-tools-raspi-realtime-6.8 (6.8.0-2050.52) @ noble2026-08-23ubuntu
ubuntulinux-tools-gcp-fips-6.8 (6.8.0-1064.72+fips1) @ noble2026-08-23ubuntu
ubuntulinux-tools-oracle-lts-24.04 (6.8.0-1058.61) @ noble2026-08-23ubuntu
ubuntulinux-tools-azure-fips-6.8 (6.8.0-1063.71+fips2) @ noble2026-08-23ubuntu
ubuntulinux-tools-azure-fde-6.8 (6.8.0-1062.69~22.04.1) @ jammy2026-08-23ubuntu
ubuntulinux-tools-aws-fips-6.8 (6.8.0-1061.64+fips1) @ noble2026-08-23ubuntu
ubuntulinux-virtual-hwe-22.04-edge (6.8.0-136.136~22.04.1) @ jammy2026-08-23ubuntu
ubuntulinux-xilinx-zynqmp (6.8.0.1033.34) @ noble2026-08-23ubuntu
redhatkernel-0:6.12.0-211.26.1.el10_22026-06-20redhat
redhatkernel-rt-0:4.18.0-553.136.1.rt7.477.el8_102026-06-19redhat
redhatkernel-0:4.18.0-553.136.1.el8_102026-06-19redhat
redhatkernel-0:5.14.0-687.15.1.el9_82026-06-11redhat
linuxKernel @ 6.6.134—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 (125 versions)6.19.12-1—

Weakness Classification(1)

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

Additional Vendor Advisories

(14)

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 7× in last 7d / 30× 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 208 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-43056?
CVE-2026-43056 is a high vulnerability published on May 1, 2026. In the Linux kernel, the following vulnerability has been resolved: net: mana: fix use-after-free in add_adev() error path If auxiliarydeviceadd() fails, addadev() jumps to addfail and calls auxiliarydeviceuninit(adev). The auxiliary device has its release callback set to adev_release(), which…
When was CVE-2026-43056 disclosed?
CVE-2026-43056 was first published in the National Vulnerability Database on May 1, 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-2026-43056 actively exploited?
CVE-2026-43056 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 98.2% of all scored CVEs.
What is the CVSS score of CVE-2026-43056?
CVE-2026-43056 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2026-43056?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-43056, 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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