CVE-2017-12190

MEDIUMNVD 6.56.5—
EchelonGraph scoreMEDIUM confidence

Score 6.5 from GitHub Security Advisory published 2022-05-13. NVD baseline CVSS 6.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
6.5
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 1%CVSS: 6.5Exploit: NoneExposed: 0

A fix is available — apply it.

The bio_map_user_iov and bio_unmap_user functions in block/bio.c in the Linux kernel before 4.13.8 do unbalanced refcounting when a SCSI I/O vector has small consecutive buffers belonging to the same page. The bio_add_pc_page function merges them into one, but the page reference is never dropped. This causes a memory leak and possible system lockup (exploitable against the host OS by a guest OS user, if a SCSI disk is passed through to a virtual machine) due to an out-of-memory condition.

CVSS v3
6.5
EG Score
6.5(medium)
EPSS
41.2%
KEV
Not listed

Published

November 22, 2017

Last Modified

May 13, 2026

References (40)

Vendor Advisories for CVE-2017-12190(3)

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

Patch Availability(11)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-image-raspi2 (4.13.0.1006.4) @ artful2026-05-22ubuntu
ubuntulinux-image-generic-lts-trusty (3.13.0.142.133) @ precise2026-05-22ubuntu
ubuntulinux-image-extra-4.4.0-116-generic (4.4.0-116.140~14.04.1) @ trusty2026-05-22ubuntu
ubuntulinux-image-extra-4.4.0-116-generic (4.4.0-116.140) @ xenial2026-05-22ubuntu
ubuntulinux-image-extra-3.13.0-142-generic (3.13.0-142.191) @ trusty2026-05-22ubuntu
redhatkernel-0:3.10.0-693.47.2.el72019-05-14redhat
redhatkernel-rt-1:3.10.0-693.47.2.rt56.641.el6rt2019-05-14redhat
redhatkernel-0:2.6.32-754.el62018-06-19redhat
redhatkernel-rt-0:3.10.0-862.rt56.804.el72018-04-10redhat
redhatkernel-alt-0:4.14.0-49.el7a2018-04-10redhat
redhatkernel-0:3.10.0-862.el72018-04-10redhat

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.

Additional Vendor Advisories

(8)

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 10× in last 7d / 39× 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.

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

Related CVEs(same vendor)

Frequently asked(5)

What is CVE-2017-12190?
CVE-2017-12190 is a medium vulnerability published on November 22, 2017. The biomapuseriov and biounmapuser functions in block/bio.c in the Linux kernel before 4.13.8 do unbalanced refcounting when a SCSI I/O vector has small consecutive buffers belonging to the same page. The bioaddpcpage function merges them into one, but the page reference is never dropped. This…
When was CVE-2017-12190 disclosed?
CVE-2017-12190 was first published in the National Vulnerability Database on November 22, 2017, with the most recent update on May 13, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2017-12190 actively exploited?
CVE-2017-12190 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 41.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2017-12190?
CVE-2017-12190 has a CVSS v3 base score of 6.5 (NVD).
How do I remediate CVE-2017-12190?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2017-12190, 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.

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