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Linux CVE-2026-98272

| EUVDEUVD-2026-93200
2026-10-06 Linux GHSA-986m-q5f3-3m78
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Monitor Track and reassess. Why: No CVSS yet + weak signal (CWE or non-zero EPSS).
Patch available 0.2% exploitation probability (EPSS)

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AnalysisCVE.org

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

net: mvpp2: prevent buffer overflow in page_pool allocation

The per‑processor buffering scheme is supported only if the number of pools (nrxqs * 2) does not exceed MVPP2_BM_MAX_POOLS (8). This is already checked in mvpp2_probe() during the initial activation of percpu_pools.

However, mvpp2_change_mtu() may later call mvpp2_bm_switch_buffers(priv, true) without this check, which can lead to an out-of-bounds access in the priv->page_pool array in mvpp2_bm_init(). The array is sized to hold MVPP2_PORT_MAX_RXQ entries, and mvpp2_get_nrxqs() may return exactly that value. The per-CPU scheme then doubles it to nrxqs * 2, exceeding the array bounds.

Check that the hardware version is MVPP22 or newer and that the number of pools (nrxqs * 2) does not exceed MVPP2_BM_MAX_POOLS before switching to per-CPU mode.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

Affected VersionsENISA

Linux 7d04b0b13b1175ce0c4bdc77f1278c1f120f874f <e7f30dcfa6c64033bf9137362517bd248e5be384
Linux 7d04b0b13b1175ce0c4bdc77f1278c1f120f874f <14cb1e7702e5cb3c58888f6aed498381a73927d2
Linux patch: 6.12.112
Linux patch: 5.15.222
Linux 7d04b0b13b1175ce0c4bdc77f1278c1f120f874f <dfd46b5584a5881b131008767950e1ab82713c8c
Linux 7d04b0b13b1175ce0c4bdc77f1278c1f120f874f <6569fd85b0ef9a8a6f20b7eb868420b8c7c0c2a0
Linux patch: 0
Linux patch: 7.2.8
Linux patch: 6.18.54
Linux 7d04b0b13b1175ce0c4bdc77f1278c1f120f874f <f0e7d62c1eb984dd204095118973c59604144cd8
Linux 5.4
Linux patch: 6.1.189
Linux 7d04b0b13b1175ce0c4bdc77f1278c1f120f874f <4ac1d5adc4f4dbafbfd270b55cc6d8bf9849d545
Linux patch: 7.3-rc4
Linux patch: 5.10.271
Linux patch: 6.6.158
Linux 7d04b0b13b1175ce0c4bdc77f1278c1f120f874f <1734c3fc0066e228ce1c11e434b7c2527f0a949a
Linux 7d04b0b13b1175ce0c4bdc77f1278c1f120f874f <5cefdb7acfc646fbded59ae77dfe0aac4c9e4a3c

Affected Packages

euvd linux no fix

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

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Lifecycle Timeline

2
Patch available
Oct 06, 2026 - 10:02 EUVD
CVE Published
Oct 06, 2026 - 08:45 cve.org
UNKNOWN (no severity yet)

Threat Intelligence Overview

EPSS Score
0.2%
Top 91% exploitable
Threat Intel
1
1 sources
Data Quality
3 sources
Confidence: Low

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity Not scored yet
CISA KEV No
Public POC No
EPSS 0.2%
Patch available Yes
Active threat No
Deciding rule
No CVSS yet + weak signal (CWE or non-zero EPSS)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

Attack Technique

A buffer overflow occurs when a program writes more data to a memory buffer than it was allocated to hold, causing the excess data to spill into adjacent memory regions.

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