CVE-2026-43117

CRITICALNVD 9.19.1—
EchelonGraph scoreMEDIUM confidence

Score 9.1 from GitHub Security Advisory (severity: CRITICAL) published 2026-05-06. NVD baseline CVSS 9.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
9.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.1Exploit: None knownExposed: 0

A fix is available — apply it.

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

btrfs: tracepoints: get correct superblock from dentry in event btrfs_sync_file()

If overlay is used on top of btrfs, dentry->d_sb translates to overlay's super block and fsid assignment will lead to a crash.

Use file_inode(file)->i_sb to always get btrfs_sb.

CVSS v3
9.1
EG Score
9.1(medium)
EG Risk
46(Track)
EG Risk 46/100SSVC: 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
Severity91% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
33%
KEV
Not listed

Published

May 6, 2026

Last Modified

August 5, 2026

Advisory Details (8)

Auto-updated Sep 7, 2026
No patch confirmed yet.
generic

btrfs: tracepoints: get correct superblock from dentry in event btrfs_sync_file() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/a85b46db143fda5869e7d8df8f258ccef5fa1719
generic

btrfs: tracepoints: get correct superblock from dentry in event btrfs_sync_file() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/d110d7cdb045715c0b45b0dfd974525bb38f653d
generic

btrfs: tracepoints: get correct superblock from dentry in event btrfs_sync_file() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/2e4adfaec97ee053ad1bdfb5036845e66f7e0d8a
generic

btrfs: tracepoints: get correct superblock from dentry in event btrfs_sync_file() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/32372781d664a9b03c40343e96c29d0a6139f97d
generic

btrfs: tracepoints: get correct superblock from dentry in event btrfs_sync_file() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/c09a7446aab5773f38d6abb25fce99b8e1dfbc97
generic

btrfs: tracepoints: get correct superblock from dentry in event btrfs_sync_file() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/e252db8ca2a01f82d472091f35d549b313278636
generic

btrfs: tracepoints: get correct superblock from dentry in event btrfs_sync_file() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/520e8b4bcf872a534a7bf61ccf880047642df296
generic

btrfs: tracepoints: get correct superblock from dentry in event btrfs_sync_file() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/4a7bab35fad5251c8cb738161152578cd83b6b9c

Vendor Advisories for CVE-2026-43117(1)

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

Patch Availability(31)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-virtual-hwe-24.04-edge (6.17.0-40.40) @ questing2026-08-23ubuntu
ubuntulinux-tools-oem-6.17 (6.17.0-1028.28) @ noble2026-08-23ubuntu
ubuntulinux-virtual-6.8 (6.8.0-134.134) @ noble2026-08-23ubuntu
ubuntulinux-virtual-hwe-20.04-edge (5.15.0.185.166) @ jammy2026-08-23ubuntu
ubuntulinux-tools-nvidia-lowlatency-64k-6.8 (6.8.0-1058.61.1) @ noble2026-08-23ubuntu
ubuntulinux-tools-nvidia-tegra-rt-6.8 (6.8.0-1029.30) @ noble2026-08-23ubuntu
ubuntulinux-tools-lowlatency-hwe-20.04-edge (6.8.0-134.134.1) @ noble2026-08-23ubuntu
ubuntulinux-xilinx-zynqmp (6.8.0.1032.33) @ noble2026-08-23ubuntu
ubuntulinux-tools-oracle-edge (5.15.0.1108.114~20.04.1) @ focal2026-08-23ubuntu
ubuntulinux-tools-nvidia-hwe-24.04 (6.17.0-1026.26) @ noble2026-08-23ubuntu
ubuntulinux-tools-raspi-realtime-6.8 (6.8.0-2049.50) @ noble2026-08-23ubuntu
ubuntulinux-tools-realtime-hwe-24.04-edge (6.17.0-1017.19) @ questing2026-08-23ubuntu
ubuntulinux-tools-raspi-6.8 (6.8.0-1060.64) @ noble2026-08-23ubuntu
ubuntulinux-tools-fips-6.8 (6.8.0-134.134+fips1) @ noble2026-08-23ubuntu
ubuntulinux-tools-raspi-nolpae (5.15.0.1105.103) @ jammy2026-08-23ubuntu
ubuntulinux-xilinx-zynqmp-tools-5.15.0-1074 (5.15.0-1074.78) @ jammy2026-08-23ubuntu
ubuntulinux-virtual-hwe-24.04 (6.17.0-40.40~24.04.1) @ noble2026-08-23ubuntu
ubuntulinux-tools-raspi-6.17 (6.17.0-1021.21) @ questing2026-08-23ubuntu
ubuntulinux-tools-intel-iotg-edge (5.15.0.1106.112~20.04.1) @ focal2026-08-23ubuntu
ubuntulinux-tools-azure-6.17 (6.17.0-1021.21~24.04.1) @ noble2026-08-23ubuntu
ubuntulinux-tools-azure-fde-6.17 (6.17.0-1018.18~24.04.1) @ noble2026-08-23ubuntu
ubuntulinux-tools-azure-lts-24.04 (6.8.0-1063.71) @ noble2026-08-23ubuntu
ubuntulinux-tools-azure-fde-lts-24.04 (6.8.0-1062.69) @ noble2026-08-23ubuntu
ubuntulinux-tools-azure-fde-6.8 (6.8.0-1062.69~22.04.1) @ jammy2026-08-23ubuntu
ubuntulinux-tools-azure-fips-5.15 (5.15.0.1116.101) @ jammy2026-08-23ubuntu
ubuntulinux-xilinx-zynqmp-tools-5.4.0-1079 (5.4.0-1079.83) @ focal2026-08-23ubuntu
ubuntulinux-tools-ibm-lts-20.04 (5.4.0.1107.136) @ focal2026-08-23ubuntu
ubuntulinux-tools-kvm-5.4 (5.4.0.1148.144) @ focal2026-08-23ubuntu
ubuntulinux-virtual-hwe-22.04-edge (6.8.0-136.136~22.04.1) @ jammy2026-08-23ubuntu
ubuntulinux-tools-raspi2-hwe-18.04-edge (5.4.0.1144.175) @ focal2026-08-23ubuntu
linuxKernel @ 5.10.258—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

(5 across 4 ecosystems)
Debian:11(2)
PackageVulnerable rangeFixed inDependents
linux5.10.103-1 ... 5.10.92-2 (54 versions)5.10.259-1—
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 ... 6.12.85-1~bpo12+1 (17 versions)6.12.85-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
linux6.12.100-1 ... 6.19~rc8-1~exp1 (129 versions)6.19.14-1—

All Vendor Advisories

(25)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 7× in last 7d / 33× 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 319 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 16:40 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 20:23 UTCEG score recompute
  20. 2026-08-23 20:23 UTCVendor advisory
  21. 2026-08-23 20:22 UTCGHSA enrichment
  22. 2026-08-23 00:19 UTCEPSS rescore
  23. 2026-08-21 23:49 UTCEPSS rescore
  24. 2026-08-20 22:55 UTCEPSS rescore
  25. 2026-08-19 17:03 UTCEPSS rescore
Show 75 more
  1. 2026-08-18 13:48 UTCEPSS rescore
  2. 2026-08-17 13:47 UTCEPSS rescore
  3. 2026-08-17 12:59 UTCEG score recompute
  4. 2026-08-17 12:59 UTCVendor advisory
  5. 2026-08-17 12:59 UTCGHSA enrichment
  6. 2026-08-16 14:56 UTCEPSS rescore
  7. 2026-08-16 09:13 UTCVendor advisory
  8. 2026-08-16 09:13 UTCGHSA enrichment
  9. 2026-08-16 04:55 UTCEG score recompute
  10. 2026-08-16 04:55 UTCVendor advisory
  11. 2026-08-16 04:55 UTCGHSA enrichment
  12. 2026-08-16 02:14 UTCEPSS rescore
  13. 2026-08-15 01:30 UTCEPSS rescore
  14. 2026-08-15 00:22 UTCVendor advisory
  15. 2026-08-15 00:22 UTCGHSA enrichment
  16. 2026-08-14 20:11 UTCVendor advisory
  17. 2026-08-14 20:11 UTCGHSA enrichment
  18. 2026-08-14 16:01 UTCVendor advisory
  19. 2026-08-14 16:01 UTCGHSA enrichment
  20. 2026-08-14 11:50 UTCVendor advisory
  21. 2026-08-14 11:50 UTCGHSA enrichment
  22. 2026-08-14 07:40 UTCVendor advisory
  23. 2026-08-14 07:40 UTCGHSA enrichment
  24. 2026-08-14 03:30 UTCEG score recompute
  25. 2026-08-14 03:30 UTCVendor advisory
  26. 2026-08-14 03:30 UTCGHSA enrichment
  27. 2026-08-13 22:00 UTCEPSS rescore
  28. 2026-08-13 10:50 UTCVendor advisory
  29. 2026-08-13 10:50 UTCGHSA enrichment
  30. 2026-08-13 06:07 UTCVendor advisory
  31. 2026-08-13 06:07 UTCGHSA enrichment
  32. 2026-08-13 01:30 UTCVendor advisory
  33. 2026-08-13 01:30 UTCGHSA enrichment
  34. 2026-08-12 21:20 UTCVendor advisory
  35. 2026-08-12 21:20 UTCGHSA enrichment
  36. 2026-08-12 17:09 UTCEG score recompute
  37. 2026-08-12 17:09 UTCVendor advisory
  38. 2026-08-12 17:09 UTCGHSA enrichment
  39. 2026-08-12 13:51 UTCEPSS rescore
  40. 2026-08-12 00:30 UTCVendor advisory
  41. 2026-08-12 00:30 UTCGHSA enrichment
  42. 2026-08-11 20:11 UTCVendor advisory
  43. 2026-08-11 20:11 UTCGHSA enrichment
  44. 2026-08-11 16:01 UTCEG score recompute
  45. 2026-08-11 16:01 UTCVendor advisory
  46. 2026-08-11 16:01 UTCGHSA enrichment
  47. 2026-08-11 13:43 UTCEPSS rescore
  48. 2026-08-11 05:44 UTCVendor advisory
  49. 2026-08-11 05:44 UTCGHSA enrichment
  50. 2026-08-11 01:34 UTCEG score recompute
  51. 2026-08-11 01:34 UTCVendor advisory
  52. 2026-08-11 01:33 UTCGHSA enrichment
  53. 2026-08-11 00:00 UTCEPSS rescore
  54. 2026-08-10 12:09 UTCVendor advisory
  55. 2026-08-10 12:09 UTCGHSA enrichment
  56. 2026-08-10 07:51 UTCVendor advisory
  57. 2026-08-10 07:51 UTCGHSA enrichment
  58. 2026-08-10 03:41 UTCVendor advisory
  59. 2026-08-10 03:41 UTCGHSA enrichment
  60. 2026-08-09 23:31 UTCVendor advisory
  61. 2026-08-09 23:31 UTCGHSA enrichment
  62. 2026-08-09 19:20 UTCVendor advisory
  63. 2026-08-09 19:20 UTCGHSA enrichment
  64. 2026-08-09 15:09 UTCEG score recompute
  65. 2026-08-09 15:09 UTCVendor advisory
  66. 2026-08-09 15:09 UTCGHSA enrichment
  67. 2026-08-09 13:46 UTCEPSS rescore
  68. 2026-08-09 10:59 UTCVendor advisory
  69. 2026-08-09 10:59 UTCGHSA enrichment
  70. 2026-08-09 06:48 UTCVendor advisory
  71. 2026-08-09 06:48 UTCGHSA enrichment
  72. 2026-08-09 02:37 UTCEG score recompute
  73. 2026-08-09 02:37 UTCVendor advisory
  74. 2026-08-09 02:37 UTCGHSA enrichment
  75. 2026-08-08 16:37 UTCEPSS rescore

Frequently asked(5)

What is CVE-2026-43117?
CVE-2026-43117 is a critical vulnerability published on May 6, 2026. In the Linux kernel, the following vulnerability has been resolved: btrfs: tracepoints: get correct superblock from dentry in event btrfssyncfile() If overlay is used on top of btrfs, dentry->d_sb translates to overlay's super block and fsid assignment will lead to a crash. Use fileinode(file)->isb…
When was CVE-2026-43117 disclosed?
CVE-2026-43117 was first published in the National Vulnerability Database on May 6, 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-2026-43117 actively exploited?
CVE-2026-43117 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 66.5% of all scored CVEs.
What is the CVSS score of CVE-2026-43117?
CVE-2026-43117 has a CVSS v3 base score of 9.1 (NVD).
How do I remediate CVE-2026-43117?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-43117, 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

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-43117

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