CVE-2026-46089

MEDIUMNVD 5.55.5—
EchelonGraph scoreMEDIUM confidence

Score 5.5 from GitHub Security Advisory published 2026-05-27. 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:

zram: do not forget to endio for partial discard requests

As reported by Qu Wenruo and Avinesh Kumar, the following

getconf PAGESIZE 65536 blkdiscard -p 4k /dev/zram0

takes literally forever to complete. zram doesn't support partial discards and just returns immediately w/o doing any discard work in such cases. The problem is that we forget to endio on our way out, so blkdiscard sleeps forever in submit_bio_wait(). Fix this by jumping to end_bio label, which does bio_endio().

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
3%
KEV
Not listed

Published

May 27, 2026

Last Modified

June 25, 2026

Advisory Details (5)

Auto-updated Jun 25, 2026
No patch confirmed yet.
generic

zram: do not forget to endio for partial discard requests - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/e3668b371329ea036ff022ce8ecc82f8befcf003
generic

zram: do not forget to endio for partial discard requests - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/a02363f71a79b755daa78a70d6b217f9c13c8c85
generic

zram: do not forget to endio for partial discard requests - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/68ce397e8236088fc53b9532d383a722288c8194
generic

zram: do not forget to endio for partial discard requests - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/35d3300f6357cfaa72db2721dc2b345b19bac5df
generic

zram: do not forget to endio for partial discard requests - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/2d1f18efccdb8b29552399d024c36b705447e975

Vendor Advisories for CVE-2026-46089(2)

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

Patch Availability(20)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-virtual-hwe-26.04-edge (7.0.0-27.27) @ resolute2026-08-25ubuntu
ubuntulinux-virtual-6.8 (6.8.0-136.136) @ noble2026-08-25ubuntu
ubuntulinux-virtual-hwe-24.04-edge (7.0.0-28.28~24.04.1) @ noble2026-08-25ubuntu
ubuntulinux-virtual-hwe-22.04-edge (6.8.0-136.136~22.04.1) @ jammy2026-08-25ubuntu
ubuntulinux-tools-oem-7.0 (7.0.0-1008.8) @ resolute2026-08-25ubuntu
ubuntulinux-tools-raspi-realtime-7.0 (7.0.0-1014.14) @ resolute2026-08-25ubuntu
ubuntulinux-tools-nvidia-hwe-24.04-edge (7.0.0-1013.13) @ resolute2026-08-25ubuntu
ubuntulinux-tools-gcp-fips-6.8 (6.8.0-1064.72+fips1) @ noble2026-08-25ubuntu
ubuntulinux-tools-oracle-lts-24.04 (6.8.0-1058.61) @ noble2026-08-25ubuntu
ubuntulinux-tools-oracle-edge (6.8.0-1058.61~22.04.1) @ jammy2026-08-25ubuntu
ubuntulinux-tools-nvidia-lowlatency-64k-6.8 (6.8.0-1059.62.1) @ noble2026-08-25ubuntu
ubuntulinux-tools-azure-fde-7.0 (7.0.0-1009.9) @ resolute2026-08-25ubuntu
ubuntulinux-tools-aws-lts-24.04 (6.8.0-1061.64+1) @ noble2026-08-25ubuntu
ubuntulinux-tools-azure-edge (6.8.0-1063.71~22.04.1) @ jammy2026-08-25ubuntu
ubuntulinux-tools-azure-fde-lts-24.04 (6.8.0-1062.69) @ noble2026-08-25ubuntu
ubuntulinux-tools-azure-fips-6.8 (6.8.0-1063.71+fips2) @ noble2026-08-25ubuntu
ubuntulinux-tools-azure-fde-6.8 (6.8.0-1062.69~22.04.1) @ jammy2026-08-25ubuntu
ubuntulinux-tools-raspi-realtime-6.8 (6.8.0-2050.52) @ noble2026-08-25ubuntu
ubuntulinux-tools-aws-fips-6.8 (6.8.0-1061.64+fips1) @ noble2026-08-25ubuntu
ubuntulinux-xilinx-zynqmp (6.8.0.1033.34) @ noble2026-08-25ubuntu

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 ... 6.12.86-1~bpo12+1 (19 versions)6.12.86-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
linux6.12.100-1 ... 7.0.4-1~bpo13+1 (131 versions)7.0.4-1—

Additional Vendor Advisories

(20)

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 5× in last 7d / 68× 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 203 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-46089?
CVE-2026-46089 is a medium vulnerability published on May 27, 2026. In the Linux kernel, the following vulnerability has been resolved: zram: do not forget to endio for partial discard requests As reported by Qu Wenruo and Avinesh Kumar, the following getconf PAGESIZE 65536 blkdiscard -p 4k /dev/zram0 takes literally forever to complete. zram doesn't support…
When was CVE-2026-46089 disclosed?
CVE-2026-46089 was first published in the National Vulnerability Database on May 27, 2026, with the most recent update on June 25, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-46089 actively exploited?
CVE-2026-46089 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 96.7% of all scored CVEs.
What is the CVSS score of CVE-2026-46089?
CVE-2026-46089 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2026-46089?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-46089, 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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