CVE-2026-98414Public exploitHinoki check available

Kernel warnings via reparented memory-cgroup charges

Published Oct 14, 2026 · Updated Oct 14, 2026

Accounting errors in Linux 6.15 memcg allow local users to trigger kernel warnings via zswap reclaim of reparented charges. In mm/memcontrol.c, obj_cgroup_charge_pages() charges the root memory cgroup after object-cgroup reparenting, while the corresponding uncharge path skips it, leaving an increasing page counter. The documented path requires enabled zswap and swap plus permission to manage cgroups and invoke root memory.reclaim; an upstream reproducer report also documents a kernel panic.

CVSS severityUnavailable
Unscored
EPSS probability0.21%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Accounting errors in Linux 6.15 memcg allow local users to trigger kernel warnings via zswap reclaim of reparented charges. In mm/memcontrol.c, obj_cgroup_charge_pages() charges the root memory cgroup after object-cgroup reparenting, while the corresponding uncharge path skips it, leaving an increasing page counter. The documented path requires enabled zswap and swap plus permission to manage cgroups and invoke root memory.reclaim; an upstream reproducer report also documents a kernel panic.

The record

CVE
CVE-2026-98414
Published
Oct 14, 2026
Updated
Oct 14, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
Attack vector
local
Privileges
Unavailable

Timeline

How it unfolded

  1. Oct 14, 2026CVE publishedPublication date reported by the CVE source.
  2. Oct 14, 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=20d6c17252282c3af261d1cde8e34def1b2458c8 <6e673d0879ef78c395cfe0d3ba316690a60055d8
  2. Affected versionversion=20d6c17252282c3af261d1cde8e34def1b2458c8 <d5cdff14c385bf42d03c0dd4c3e88ddf4c28b8a9
  3. Affected versionversion=20d6c17252282c3af261d1cde8e34def1b2458c8 <ecc03877b1b05cb1e3a72175ccb868383eccc518
  4. Affected versionversion=6.15

What conditions does exploitation require?

Attack vectorlocal
Required privilegesUnavailable in this record.

What is affected?

The Linux Kernel Organization · Linuxversion=20d6c17252282c3af261d1cde8e34def1b2458c8 <6e673d0879ef78c395cfe0d3ba316690a60055d8; version=20d6c17252282c3af261d1cde8e34def1b2458c8 <d5cdff14c385bf42d03c0dd4c3e88ddf4c28b8a9; version=20d6c17252282c3af261d1cde8e34def1b2458c8 <ecc03877b1b05cb1e3a72175ccb868383eccc518; version=6.15

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

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Activity data is delayed. The latest report is Sep 28, 2026.

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No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

No sourced classifications are available.

Public exploit references

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Technologies

Your stack

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Your stack

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