CVE-2026-90004Hinoki check available

Kernel memory corruption via failed DAMON region split

Published Sep 16, 2026 · Updated Sep 16, 2026

Memory corruption in Linux 7.1 allows attackers to crash the kernel when DAMON region splitting fails during memory allocation. damon_apply_min_nr_regions() treats damon_split_region_at() as infallible and fetches the next list entry after a silent allocation failure. The failure is rare and requires DAMON to split the last region under memory pressure, but the resulting invalid dereference can corrupt memory or crash the kernel.

CVSS severityUnavailable
Unscored
EPSS probabilityUnavailable
No score available in this record
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Memory corruption in Linux 7.1 allows attackers to crash the kernel when DAMON region splitting fails during memory allocation. damon_apply_min_nr_regions() treats damon_split_region_at() as infallible and fetches the next list entry after a silent allocation failure. The failure is rare and requires DAMON to split the last region under memory pressure, but the resulting invalid dereference can corrupt memory or crash the kernel.

The record

CVE
CVE-2026-90004
Published
Sep 16, 2026
Updated
Sep 16, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
Attack vector
Unavailable
Privileges
Unavailable

Timeline

How it unfolded

  1. Sep 16, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 16, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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  1. Affected versionversion=7.1
  2. Affected versionversion=b1029f29eb1d5fbf07fa8db9b5e7ab6d9813ad67 <463ebd63e8ee3d73022a18915ea43320dad8aad7
  3. Affected versionversion=b1029f29eb1d5fbf07fa8db9b5e7ab6d9813ad67 <c608748607620f331196ed0ba9fe4017892c1457

What conditions does exploitation require?

Attack vectorUnavailable in this record.
Required privilegesUnavailable in this record.

What is affected?

The Linux Kernel Organization · Linuxversion=7.1; version=b1029f29eb1d5fbf07fa8db9b5e7ab6d9813ad67 <463ebd63e8ee3d73022a18915ea43320dad8aad7; version=b1029f29eb1d5fbf07fa8db9b5e7ab6d9813ad67 <c608748607620f331196ed0ba9fe4017892c1457

Published CVSS scores

No CVSS assessment is available in this record.

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
VectorUnavailable
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

No sourced classifications are available.

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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