CVE-2025-21832

MEDIUMNVD 5.55.5—
EchelonGraph scoreMEDIUM confidence

Score 5.5 from GitHub Security Advisory published 2025-03-06. NVD baseline CVSS 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 4 sources updated this week
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:

block: don't revert iter for -EIOCBQUEUED

blkdev_read_iter() has a few odd checks, like gating the position and count adjustment on whether or not the result is bigger-than-or-equal to zero (where bigger than makes more sense), and not checking the return value of blkdev_direct_IO() before doing an iov_iter_revert(). The latter can lead to attempting to revert with a negative value, which when passed to iov_iter_revert() as an unsigned value will lead to throwing a WARN_ON() because unroll is bigger than MAX_RW_COUNT.

Be sane and don't revert for -EIOCBQUEUED, like what is done in other spots.

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
9%
KEV
Not listed

Published

March 6, 2025

Last Modified

August 5, 2026

Advisory Details (6)

Auto-updated Aug 2, 2026
Patch available.
generic Patch Available

[SECURITY] [DLA 4102-1] linux-6.1 security update

https://lists.debian.org/debian-lts-announce/2025/03/msg00028.html
generic

block: don't revert iter for -EIOCBQUEUED - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/b13ee668e8280ca5b07f8ce2846b9957a8a10853
generic

block: don't revert iter for -EIOCBQUEUED - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/a58f136bad29f9ae721a29d98c042fddbee22f77
generic

block: don't revert iter for -EIOCBQUEUED - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/84671b0630ccb46ae9f1f99a45c7d63ffcd6a474
generic

block: don't revert iter for -EIOCBQUEUED - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/6c26619effb1b4cb7d20b4e666ab8f71f6a53ccb
generic

block: don't revert iter for -EIOCBQUEUED - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/68f16d3034a06661245ecd22f0d586a8b4e7c473

Patch Availability(13)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-virtual-hwe-24.04-edge (6.11.0-26.26) @ oracular2026-05-30ubuntu
ubuntulinux-tools-oracle-64k (6.11.0-1016.17) @ oracular2026-05-30ubuntu
ubuntulinux-tools-raspi-6.8 (6.8.0-1031.35) @ noble2026-05-30ubuntu
ubuntulinux-tools-aws (6.11.0-1014.15) @ oracular2026-05-30ubuntu
ubuntulinux-tools-realtime-6.8.1 (6.8.1-1025.26) @ noble2026-05-30ubuntu
ubuntulinux-virtual-6.8 (6.8.0-64.67) @ noble2026-05-30ubuntu
ubuntulinux-virtual-hwe-22.04-edge (6.8.0-64.67~22.04.1) @ jammy2026-05-30ubuntu
ubuntulinux-tools-oracle-lts-24.04 (6.8.0-1029.30) @ noble2026-05-30ubuntu
ubuntulinux-tools-lowlatency-hwe-22.04-edge (6.8.0-64.67.1~22.04.1) @ jammy2026-05-30ubuntu
ubuntulinux-tools-gcp-lts-24.04 (6.8.0-1033.35) @ noble2026-05-30ubuntu
ubuntulinux-tools-raspi-realtime-6.8 (6.8.0-2026.27) @ noble2026-05-30ubuntu
ubuntulinux-tools-azure-edge (6.8.0-1034.39~22.04.1) @ jammy2026-05-30ubuntu
linuxKernel @ 6.1.129—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.

All Vendor Advisories

(12)

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 10× in last 7d / 42× 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 109 total refreshes for this CVE.

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

Related CVEs(same product + same vendor)

Frequently asked(5)

What is CVE-2025-21832?
CVE-2025-21832 is a medium vulnerability published on March 6, 2025. In the Linux kernel, the following vulnerability has been resolved: block: don't revert iter for -EIOCBQUEUED blkdevreaditer() has a few odd checks, like gating the position and count adjustment on whether or not the result is bigger-than-or-equal to zero (where bigger than makes more sense), and…
When was CVE-2025-21832 disclosed?
CVE-2025-21832 was first published in the National Vulnerability Database on March 6, 2025, 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-2025-21832 actively exploited?
CVE-2025-21832 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 91.5% of all scored CVEs.
What is the CVSS score of CVE-2025-21832?
CVE-2025-21832 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2025-21832?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-21832, 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

Explore the affected products and dependency analysis for CVE-2025-21832

Explore →

Is Your Infrastructure Affected by CVE-2025-21832?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs