CVE-2026-53123

MEDIUMNVD 5.55.5—
EchelonGraph scoreMEDIUM confidence

Score 5.5 from GitHub Security Advisory published 2026-06-24. NVD baseline CVSS 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
5.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.5Exploit: None knownExposed: 0

A fix is available — apply it.

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

md: wake raid456 reshape waiters before suspend

During raid456 reshape, direct IO across the reshape position can sleep in raid5_make_request() waiting for reshape progress while still holding an active_io reference. If userspace then freezes reshape and writes md/suspend_lo or md/suspend_hi, mddev_suspend() kills active_io and waits for all in-flight IO to drain.

This can deadlock: the IO needs reshape progress to continue, but the reshape thread is already frozen, so the active_io reference is never dropped and suspend never completes.

raid5_prepare_suspend() already wakes wait_for_reshape for dm-raid. Do the same for normal md suspend when reshape is already interrupted, so waiting raid456 IO can abort, drop its reference, and let suspend finish.

The mdadm test tests/25raid456-reshape-deadlock reproduces the hang.

CVSS v3
5.5
EG Score
5.5(medium)
EG Risk
29(Track)
EG Risk 29/100SSVC: 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
Severity55% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
2%
KEV
Not listed

Published

June 24, 2026

Last Modified

July 23, 2026

Advisory Details (4)

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

md: wake raid456 reshape waiters before suspend - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/ff6b93410192b812d73cc54062529715b2dc849f
generic

md: wake raid456 reshape waiters before suspend - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/cf86bb53b9c92354904a328e947a05ffbfdd1840
generic

md: wake raid456 reshape waiters before suspend - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/8b6a72420821e6da2cab6a69d5233500d2698b93
generic

md: wake raid456 reshape waiters before suspend - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/8ae3e14d7f3df58f7f49c02d74344e3dcd5f84f0

Vendor Advisories for CVE-2026-53123(1)

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

Patch Availability(22)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-virtual-hwe-24.04-edge (7.0.0-28.28~24.04.1) @ noble2026-08-30ubuntu
ubuntulinux-tools-gcp-fips-6.8 (6.8.0-1064.72+fips1) @ noble2026-08-30ubuntu
ubuntulinux-tools-oracle-edge (6.8.0-1058.61~22.04.1) @ jammy2026-08-30ubuntu
ubuntulinux-tools-aws-lts-24.04 (6.8.0-1061.64+1) @ noble2026-08-30ubuntu
ubuntulinux-tools-azure-lts-24.04 (6.8.0-1063.71) @ noble2026-08-30ubuntu
ubuntulinux-tools-azure-fips-6.8 (6.8.0-1063.71+fips2) @ noble2026-08-30ubuntu
ubuntulinux-tools-raspi-realtime-7.0 (7.0.0-1015.15) @ resolute2026-08-30ubuntu
ubuntulinux-tools-azure-fde-6.8 (6.8.0-1062.69~22.04.1) @ jammy2026-08-30ubuntu
ubuntulinux-tools-aws-fips-6.8 (6.8.0-1061.64+fips1) @ noble2026-08-30ubuntu
ubuntulinux-tools-oracle-7.0 (7.0.0-1008.8) @ resolute2026-08-30ubuntu
ubuntulinux-tools-oracle-lts-24.04 (6.8.0-1058.61) @ noble2026-08-30ubuntu
ubuntulinux-tools-oem-7.0 (7.0.0-1009.9) @ resolute2026-08-30ubuntu
ubuntulinux-tools-raspi-realtime-6.8 (6.8.0-2050.52) @ noble2026-08-30ubuntu
ubuntulinux-virtual-hwe-26.04-edge (7.0.0-28.28) @ resolute2026-08-30ubuntu
ubuntulinux-tools-nvidia-hwe-22.04-edge (6.8.0-1059.62~22.04.1) @ jammy2026-08-30ubuntu
ubuntulinux-virtual-6.8 (6.8.0-136.136) @ noble2026-08-30ubuntu
ubuntulinux-tools-azure-fde-7.0 (7.0.0-1009.9) @ resolute2026-08-30ubuntu
ubuntulinux-xilinx-zynqmp (6.8.0.1033.34) @ noble2026-08-30ubuntu
ubuntulinux-tools-azure-fde-lts-24.04 (6.8.0-1062.69) @ noble2026-08-30ubuntu
ubuntulinux-virtual-hwe-22.04-edge (6.8.0-136.136~22.04.1) @ jammy2026-08-30ubuntu
ubuntulinux-tools-nvidia-hwe-24.04-edge (7.0.0-1016.16) @ resolute2026-08-30ubuntu
ubuntulinux-tools-nvidia-hwe-26.04 (7.0.0-2016.16) @ resolute2026-08-30ubuntu

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 ... 6.12.94-1~bpo12+1 (27 versions)6.12.94-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
linux6.12.100-1 ... 7.0.9-1~bpo13+1 (140 versions)7.0.10-1—

All Vendor Advisories

(22)

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 5× in last 7d / 58× 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 174 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-53123?
CVE-2026-53123 is a medium vulnerability published on June 24, 2026. In the Linux kernel, the following vulnerability has been resolved: md: wake raid456 reshape waiters before suspend During raid456 reshape, direct IO across the reshape position can sleep in raid5makerequest() waiting for reshape progress while still holding an active_io reference. If userspace…
When was CVE-2026-53123 disclosed?
CVE-2026-53123 was first published in the National Vulnerability Database on June 24, 2026, with the most recent update on July 23, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-53123 actively exploited?
CVE-2026-53123 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-2026-53123?
CVE-2026-53123 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2026-53123?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-53123, 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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