CVE-2026-46129

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:

btrfs: fix double free in create_space_info() error path

When kobject_init_and_add() fails, the call chain is:

create_space_info() -> btrfs_sysfs_add_space_info_type() -> kobject_init_and_add() -> failure -> kobject_put(&space_info->kobj) -> space_info_release() -> kfree(space_info)

Then control returns to create_space_info():

btrfs_sysfs_add_space_info_type() returns error -> goto out_free -> kfree(space_info)

This causes a double free.

Keep the direct kfree(space_info) for the earlier failure path, but after btrfs_sysfs_add_space_info_type() has called kobject_put(), let the kobject release callback handle the cleanup.

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

August 5, 2026

Advisory Details (6)

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

btrfs: fix double free in create_space_info() error path - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/f414b3abbba59ef379a2b3c31f2bdd9358ed5e53
generic

btrfs: fix double free in create_space_info() error path - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/dd6ade0fdd59218d71a981ae7c937a304e49209c
generic

btrfs: fix double free in create_space_info() error path - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/c2670ec4aa49ca226bce9776601e0da37502be07
generic

btrfs: fix double free in create_space_info() error path - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/ae6d6e31ceb72b7697c28a528e4923c08e3c2ef5
generic

btrfs: fix double free in create_space_info() error path - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/9a060970fd7b5e1c561e4ce73cb9949e4269a738
generic

btrfs: fix double free in create_space_info() error path - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/3f487be81292702a59ea9dbc4088b3360a50e837

Vendor Advisories for CVE-2026-46129(2)

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

Patch Availability(24)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-tools-aws-lts-24.04 (6.8.0-1061.64+1) @ noble2026-09-14ubuntu
ubuntulinux-tools-azure-edge (6.8.0-1063.71~22.04.1) @ jammy2026-09-14ubuntu
ubuntulinux-tools-azure-fde-lts-24.04 (6.8.0-1062.69) @ noble2026-09-14ubuntu
ubuntulinux-tools-azure-fde-6.8 (6.8.0-1062.69~22.04.1) @ jammy2026-09-14ubuntu
ubuntulinux-tools-azure-fips-6.8 (6.8.0-1063.71+fips2) @ noble2026-09-14ubuntu
ubuntulinux-tools-raspi-realtime-7.0 (7.0.0-1015.15) @ resolute2026-09-14ubuntu
ubuntulinux-tools-nvidia-hwe-24.04-edge (7.0.0-1016.16) @ resolute2026-09-14ubuntu
ubuntulinux-tools-raspi-realtime-6.8 (6.8.0-2050.52) @ noble2026-09-14ubuntu
ubuntulinux-virtual-hwe-26.04-edge (7.0.0-28.28) @ resolute2026-09-14ubuntu
ubuntulinux-virtual-6.8 (6.8.0-136.136) @ noble2026-09-14ubuntu
ubuntulinux-tools-oem-7.0 (7.0.0-1009.9) @ resolute2026-09-14ubuntu
ubuntulinux-virtual-hwe-24.04-edge (7.0.0-28.28~24.04.1) @ noble2026-09-14ubuntu
ubuntulinux-tools-azure-fde-7.0 (7.0.0-1009.9) @ resolute2026-09-14ubuntu
ubuntulinux-tools-gcp-fips-6.8 (6.8.0-1064.72+fips1) @ noble2026-09-14ubuntu
ubuntulinux-tools-oracle-7.0 (7.0.0-1008.8) @ resolute2026-09-14ubuntu
ubuntulinux-tools-oracle-lts-24.04 (6.8.0-1058.61) @ noble2026-09-14ubuntu
ubuntulinux-tools-oracle-edge (6.8.0-1058.61~22.04.1) @ jammy2026-09-14ubuntu
ubuntulinux-tools-nvidia-hwe-22.04-edge (6.8.0-1059.62~22.04.1) @ jammy2026-09-14ubuntu
ubuntulinux-tools-aws-fips-6.8 (6.8.0-1061.64+fips1) @ noble2026-09-14ubuntu
ubuntulinux-xilinx-zynqmp (6.8.0.1033.34) @ noble2026-09-14ubuntu
ubuntulinux-virtual-hwe-22.04-edge (6.8.0-136.136~22.04.1) @ jammy2026-09-14ubuntu
ubuntulinux-tools-nvidia-hwe-26.04 (7.0.0-2016.16) @ resolute2026-09-14ubuntu
ubuntulinux-tools-gcp-edge (7.0.0-1011.11~24.04.1) @ noble2026-09-14ubuntu
linuxKernel @ 6.1.175—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

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
linux-6.16.1.106-3~deb11u1 ... 6.1.174-1~deb11u1 (20 versions)6.1.176-1~deb11u1—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
linux6.1.106-1 ... 6.1.99-1 (53 versions)6.1.176-1—
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

(23)

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 9× in last 7d / 36× 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 307 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. 2026-09-14 07:19 UTCEG score recompute
  6. 2026-09-14 07:19 UTCVendor advisory
  7. 2026-09-14 07:19 UTCGHSA enrichment
  8. 2026-09-13 16:47 UTCEPSS rescore
  9. 2026-09-13 02:39 UTCOSV refresh
  10. 2026-09-12 15:01 UTCEPSS rescore
  11. 2026-09-11 14:53 UTCEPSS rescore
  12. 2026-09-11 09:37 UTCEPSS rescore
  13. 2026-09-10 09:34 UTCEPSS rescore
  14. 2026-09-08 22:00 UTCEPSS rescore
  15. 2026-09-07 16:01 UTCEPSS rescore
  16. 2026-09-06 13:47 UTCEPSS rescore
  17. 2026-09-04 05:06 UTCEPSS rescore
  18. 2026-09-02 14:12 UTCEPSS rescore
  19. 2026-09-01 13:54 UTCEPSS rescore
  20. 2026-08-30 19:17 UTCEPSS rescore
  21. 2026-08-30 01:22 UTCEPSS rescore
  22. 2026-08-28 21:41 UTCEPSS rescore
  23. 2026-08-27 14:25 UTCEPSS rescore
  24. 2026-08-26 14:46 UTCEPSS rescore
  25. 2026-08-25 13:49 UTCEPSS rescore
Show 75 more
  1. 2026-08-25 04:56 UTCEG score recompute
  2. 2026-08-25 04:56 UTCVendor advisory
  3. 2026-08-25 04:55 UTCGHSA enrichment
  4. 2026-08-23 14:44 UTCEG score recompute
  5. 2026-08-23 14:44 UTCVendor advisory
  6. 2026-08-23 14:44 UTCGHSA enrichment
  7. 2026-08-23 00:19 UTCEPSS rescore
  8. 2026-08-21 23:49 UTCEPSS rescore
  9. 2026-08-21 15:53 UTCEG score recompute
  10. 2026-08-21 15:53 UTCVendor advisory
  11. 2026-08-21 15:53 UTCGHSA enrichment
  12. 2026-08-20 22:55 UTCEPSS rescore
  13. 2026-08-20 22:31 UTCVendor advisory
  14. 2026-08-20 22:31 UTCGHSA enrichment
  15. 2026-08-20 11:01 UTCEG score recompute
  16. 2026-08-20 11:01 UTCVendor advisory
  17. 2026-08-20 11:01 UTCGHSA enrichment
  18. 2026-08-19 17:04 UTCEPSS rescore
  19. 2026-08-18 13:48 UTCEPSS rescore
  20. 2026-08-17 13:47 UTCEPSS rescore
  21. 2026-08-17 09:00 UTCVendor advisory
  22. 2026-08-17 09:00 UTCGHSA enrichment
  23. 2026-08-16 15:11 UTCEG score recompute
  24. 2026-08-16 15:11 UTCVendor advisory
  25. 2026-08-16 15:11 UTCGHSA enrichment
  26. 2026-08-16 14:56 UTCEPSS rescore
  27. 2026-08-16 02:40 UTCEG score recompute
  28. 2026-08-16 02:40 UTCVendor advisory
  29. 2026-08-16 02:40 UTCGHSA enrichment
  30. 2026-08-16 02:14 UTCEPSS rescore
  31. 2026-08-15 01:30 UTCEPSS rescore
  32. 2026-08-14 23:22 UTCVendor advisory
  33. 2026-08-14 23:22 UTCGHSA enrichment
  34. 2026-08-14 12:21 UTCVendor advisory
  35. 2026-08-14 12:21 UTCGHSA enrichment
  36. 2026-08-14 01:21 UTCEG score recompute
  37. 2026-08-14 01:21 UTCVendor advisory
  38. 2026-08-14 01:21 UTCGHSA enrichment
  39. 2026-08-13 22:00 UTCEPSS rescore
  40. 2026-08-13 08:02 UTCVendor advisory
  41. 2026-08-13 08:02 UTCGHSA enrichment
  42. 2026-08-12 20:31 UTCEG score recompute
  43. 2026-08-12 20:31 UTCVendor advisory
  44. 2026-08-12 20:31 UTCGHSA enrichment
  45. 2026-08-12 13:51 UTCEPSS rescore
  46. 2026-08-12 09:30 UTCVendor advisory
  47. 2026-08-12 09:30 UTCGHSA enrichment
  48. 2026-08-11 22:24 UTCEG score recompute
  49. 2026-08-11 22:24 UTCVendor advisory
  50. 2026-08-11 22:24 UTCGHSA enrichment
  51. 2026-08-11 11:19 UTCVendor advisory
  52. 2026-08-11 11:19 UTCGHSA enrichment
  53. 2026-08-11 00:07 UTCEG score recompute
  54. 2026-08-11 00:07 UTCVendor advisory
  55. 2026-08-11 00:07 UTCGHSA enrichment
  56. 2026-08-11 00:00 UTCEPSS rescore
  57. 2026-08-10 05:19 UTCVendor advisory
  58. 2026-08-10 05:19 UTCGHSA enrichment
  59. 2026-08-09 18:18 UTCEG score recompute
  60. 2026-08-09 18:18 UTCVendor advisory
  61. 2026-08-09 18:18 UTCGHSA enrichment
  62. 2026-08-09 13:46 UTCEPSS rescore
  63. 2026-08-09 07:18 UTCVendor advisory
  64. 2026-08-09 07:18 UTCGHSA enrichment
  65. 2026-08-08 20:17 UTCEG score recompute
  66. 2026-08-08 20:17 UTCVendor advisory
  67. 2026-08-08 20:17 UTCGHSA enrichment
  68. 2026-08-08 16:37 UTCEPSS rescore
  69. 2026-08-08 09:14 UTCVendor advisory
  70. 2026-08-08 09:14 UTCGHSA enrichment
  71. 2026-08-07 22:13 UTCEG score recompute
  72. 2026-08-07 22:13 UTCVendor advisory
  73. 2026-08-07 22:13 UTCGHSA enrichment
  74. 2026-08-07 11:12 UTCVendor advisory
  75. 2026-08-07 11:12 UTCGHSA enrichment

Related CVEs(same product + same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-46129?
CVE-2026-46129 is a high vulnerability published on May 28, 2026. In the Linux kernel, the following vulnerability has been resolved: btrfs: fix double free in createspaceinfo() error path When kobjectinitand_add() fails, the call chain is: createspaceinfo() -> btrfssysfsaddspaceinfo_type() -> kobjectinitand_add() -> failure -> kobjectput(&spaceinfo->kobj) ->…
When was CVE-2026-46129 disclosed?
CVE-2026-46129 was first published in the National Vulnerability Database on May 28, 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-2026-46129 actively exploited?
CVE-2026-46129 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 96.4% of all scored CVEs.
What is the CVSS score of CVE-2026-46129?
CVE-2026-46129 has a CVSS v4.0 base score of 7.8 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-46129?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-46129, 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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