CVE-2026-68292

Resource exhaustion via wrong-VSI timestamp allocation

Published Aug 10, 2026 · Updated Aug 10, 2026

Memory leak in affected Linux kernel releases since 6.18 allows local users to consume kernel memory through repeated PCI resets. ice_is_txtime_ena() indexes pf->txtime_txqs only by queue number, so a PF ETF bit causes ice_vsi_cfg_txq() to allocate an unreachable 64-byte tstamp_ring for a CTRL VSI. Exploitation requires administrative control of ETF and PCI resets; each reset leaks 64 bytes, so operational impact requires many repetitions.

CVSS severity2.3
Low
EPSS probability0.17%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Memory leak in affected Linux kernel releases since 6.18 allows local users to consume kernel memory through repeated PCI resets. ice_is_txtime_ena() indexes pf->txtime_txqs only by queue number, so a PF ETF bit causes ice_vsi_cfg_txq() to allocate an unreachable 64-byte tstamp_ring for a CTRL VSI. Exploitation requires administrative control of ETF and PCI resets; each reset leaks 64 bytes, so operational impact requires many repetitions.

The record

CVE
CVE-2026-68292
Published
Aug 10, 2026
Updated
Aug 10, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Aug 10, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 10, 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=6.18
  2. Affected versionversion=ccde82e909467abdf098a8ee6f63e1ecf9a47ce5 <144539bbfd3cea1ab0fb6f5216d6004c1f4f029b
  3. Affected versionversion=ccde82e909467abdf098a8ee6f63e1ecf9a47ce5 <684d4d0bda95a3fb21b3e29ff0f668f657707b54
  4. Affected versionversion=ccde82e909467abdf098a8ee6f63e1ecf9a47ce5 <d0a21604c6abfa4956f3a511a1de174cec77a812

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

The Linux Kernel Organization · Linuxversion=6.18; version=ccde82e909467abdf098a8ee6f63e1ecf9a47ce5 <144539bbfd3cea1ab0fb6f5216d6004c1f4f029b; version=ccde82e909467abdf098a8ee6f63e1ecf9a47ce5 <684d4d0bda95a3fb21b3e29ff0f668f657707b54; version=ccde82e909467abdf098a8ee6f63e1ecf9a47ce5 <d0a21604c6abfa4956f3a511a1de174cec77a812

Published CVSS scores

2.3Amazon LinuxCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L

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.

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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)
Vectorlocal
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

No sourced classifications are available.

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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