CVE-2026-64052

UNRATEDCVSS · not yet scoredTrending — 3 sources updated this week
—
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • No CVSS published and no exploitation signals yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS v2: —Exploit: None knownExposed: 0

A fix is available — apply it.

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

block: bio-integrity: Fix null-ptr-deref in bio_integrity_map_user()

pin_user_pages_fast() can partially succeed and return the number of pages that were actually pinned. However, the bio_integrity_map_user() does not handle this partial pinning. This leads to a general protection fault since bvec_from_pages() dereferences an unpinned page address, which is 0.

To fix this, add a check to verify that all requested memory is pinned. If partial pinning occurs, unpin the memory and return -EFAULT.

Kernel Oops:

Oops: general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] SMP KASAN NOPTI KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f] CPU: 0 UID: 0 PID: 1061 Comm: nvme-passthroug Not tainted 7.0.0-11783-g90957f9314e8-dirty #16 PREEMPT(lazy) Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.17.0-0-gb52ca86e094d-prebuilt.qemu.org 04/01/2014 RIP: 0010:bio_integrity_map_user.cold+0x1b0/0x9d6

CVSS v3
—
EchelonGraph score
Not yet assessedNo source has published severity data for this CVE yet — no CVSS score from NVD or a CNA, no GitHub advisory, and it is not in CISA KEV. This is not a rating of zero; we cannot assess it yet.
EG Score
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EG Risk
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EPSS PROB
0%
EPSS %ILE
6%
KEV
Not listed

Published

July 19, 2026

Last Modified

July 30, 2026

References (4)

Vendor Advisories for CVE-2026-64052(1)

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

Patch Availability(5)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-tools-oracle-7.0 (7.0.0-1008.8) @ resolute2026-08-27ubuntu
ubuntulinux-tools-azure-fde-7.0 (7.0.0-1009.9) @ resolute2026-08-27ubuntu
ubuntulinux-tools-raspi-realtime-7.0 (7.0.0-1015.15) @ resolute2026-08-27ubuntu
ubuntulinux-tools-nvidia-hwe-24.04-edge (7.0.0-1016.16) @ resolute2026-08-27ubuntu
ubuntulinux-tools-nvidia-hwe-26.04 (7.0.0-2016.16) @ resolute2026-08-27ubuntu

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 (138 versions)7.0.12-1—

All Vendor Advisories

(5)

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 8× 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.

  1. 2026-08-30 01:22 UTCEPSS rescore
  2. 2026-08-28 21:42 UTCEPSS rescore
  3. 2026-08-27 14:02 UTCVendor advisory
  4. 2026-08-27 14:02 UTCGHSA enrichment
  5. 2026-08-26 14:46 UTCEPSS rescore
  6. 2026-08-25 13:49 UTCEPSS rescore
  7. 2026-08-24 19:04 UTCVendor advisory
  8. 2026-08-24 19:03 UTCGHSA enrichment
  9. 2026-08-23 00:19 UTCEPSS rescore
  10. 2026-08-21 23:56 UTCVendor advisory
  11. 2026-08-21 23:56 UTCGHSA enrichment
  12. 2026-08-21 23:49 UTCEPSS rescore
  13. 2026-08-20 22:55 UTCEPSS rescore
  14. 2026-08-19 17:04 UTCEPSS rescore
  15. 2026-08-19 04:57 UTCVendor advisory
  16. 2026-08-19 04:57 UTCGHSA enrichment
  17. 2026-08-18 13:48 UTCEPSS rescore
  18. 2026-08-17 13:47 UTCEPSS rescore
  19. 2026-08-16 14:56 UTCEPSS rescore
  20. 2026-08-16 09:57 UTCVendor advisory
  21. 2026-08-16 09:57 UTCGHSA enrichment
  22. 2026-08-15 01:30 UTCEPSS rescore
  23. 2026-08-13 14:59 UTCVendor advisory
  24. 2026-08-13 14:59 UTCGHSA enrichment
  25. 2026-08-12 13:51 UTCEPSS rescore
Show 47 more
  1. 2026-08-11 00:00 UTCEPSS rescore
  2. 2026-08-10 20:01 UTCVendor advisory
  3. 2026-08-10 20:01 UTCGHSA enrichment
  4. 2026-08-09 13:47 UTCEPSS rescore
  5. 2026-08-08 16:37 UTCEPSS rescore
  6. 2026-08-08 01:03 UTCVendor advisory
  7. 2026-08-08 01:03 UTCGHSA enrichment
  8. 2026-08-05 19:17 UTCEPSS rescore
  9. 2026-08-05 19:17 UTCEPSS rescore
  10. 2026-08-05 06:05 UTCGHSA enrichment
  11. 2026-08-04 15:10 UTCEPSS rescore
  12. 2026-08-04 10:39 UTCEPSS rescore
  13. 2026-08-03 10:36 UTCEPSS rescore
  14. 2026-08-02 10:25 UTCVendor advisory
  15. 2026-08-02 10:25 UTCGHSA enrichment
  16. 2026-08-02 02:27 UTCEPSS rescore
  17. 2026-08-01 04:16 UTCEPSS rescore
  18. 2026-07-30 16:28 UTCEPSS rescore
  19. 2026-07-30 15:27 UTCEG score recompute
  20. 2026-07-30 15:27 UTCGHSA enrichment
  21. 2026-07-30 01:30 UTCEPSS rescore
  22. 2026-07-30 01:30 UTCEPSS rescore
  23. 2026-07-29 05:55 UTCGHSA enrichment
  24. 2026-07-28 15:37 UTCEPSS rescore
  25. 2026-07-27 14:14 UTCEPSS rescore
  26. 2026-07-26 14:54 UTCEPSS rescore
  27. 2026-07-26 14:54 UTCEPSS rescore
  28. 2026-07-26 10:55 UTCEG score recompute
  29. 2026-07-26 10:55 UTCVendor advisory
  30. 2026-07-26 10:55 UTCGHSA enrichment
  31. 2026-07-25 14:18 UTCEPSS rescore
  32. 2026-07-25 14:18 UTCEPSS rescore
  33. 2026-07-24 14:18 UTCEPSS rescore
  34. 2026-07-24 14:18 UTCEPSS rescore
  35. 2026-07-23 14:18 UTCEPSS rescore
  36. 2026-07-23 14:18 UTCEPSS rescore
  37. 2026-07-23 03:22 UTCEG score recompute
  38. 2026-07-22 14:08 UTCEPSS rescore
  39. 2026-07-22 14:08 UTCEPSS rescore
  40. 2026-07-21 15:25 UTCEPSS rescore
  41. 2026-07-21 15:25 UTCEPSS rescore
  42. 2026-07-20 17:26 UTCEG score recompute
  43. 2026-07-20 17:26 UTCGHSA enrichment
  44. 2026-07-20 17:08 UTCEPSS rescore
  45. 2026-07-19 17:49 UTCNVD update
  46. 2026-07-19 16:12 UTCEG score recompute
  47. 2026-07-19 16:03 UTCMITRE cvelistV5first tracked

Frequently asked(4)

What is CVE-2026-64052?
CVE-2026-64052 is a publicly disclosed vulnerability published on July 19, 2026. In the Linux kernel, the following vulnerability has been resolved: block: bio-integrity: Fix null-ptr-deref in biointegritymap_user() pinuserpages_fast() can partially succeed and return the number of pages that were actually pinned. However, the biointegritymap_user() does not handle this partial…
When was CVE-2026-64052 disclosed?
CVE-2026-64052 was first published in the National Vulnerability Database on July 19, 2026, with the most recent update on July 30, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-64052 actively exploited?
CVE-2026-64052 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 93.7% of all scored CVEs.
How do I remediate CVE-2026-64052?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-64052, 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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