Unknown

CVE-2026-98272 — net: mvpp2: prevent buffer overflow in page_pool allocation

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.

Published Oct 6, 2026 · Updated Oct 13, 2026 · Sources: NIST National Vulnerability Database, CVE Program (cve.org) e CISA ADP · CNA: Linux

Low

Who exploits it and how urgent it is

A 0–100 score combining confirmed exploitation, ransomware and APT use, public exploits, EPSS and severity.

No exploitation signal in the sources consulted so far.

How the score was calculated

EPSS 0.2% (30-day exploitation probability)+1

The score orders the patch queue; it does not replace your asset context (internet exposure, criticality, compensating controls).

Triage

Is it exploited, how likely is exploitation, what does it touch, and how severe do the sources call it.

Exploitation

Not confirmed

Not in CISA KEV — an absence of record, not proof it is unexploited.

EPSS FIRST

0.2%

ahead of 10% of scored CVEs · Oct 14, 2026

Affects

Linux

CVSS base

—

Score not published yet.

Remediation

Fixes and mitigations documented by the sources — linked to the original advisory.

No fix documented by the sources we poll. That does not mean none exists: check the vendor advisory.

First 24 hours

Ordered from the record’s own fields — exposure first, because you cannot patch what you have not found. A rule-generated starting point.

Identify exposed assets running the affected vendor/product/version combinations (Linux Linux).
No fix documented in the sources: reduce exposure and monitor the vendor advisory.
Search available logs for exploit probes, errors and authentication anomalies.

Affected scope

Vendor, product and versions as the sources word them.

Vendor	Product	Versions	Status	Source
Linux	Linux	≥ 7d04b0b13b1175ce0c4bdc77f1278c1f120f874f and < 5cefdb7acfc646fbded59ae77dfe0aac4c9e4a3c≥ 7d04b0b13b1175ce0c4bdc77f1278c1f120f874f and < 4ac1d5adc4f4dbafbfd270b55cc6d8bf9849d545≥ 7d04b0b13b1175ce0c4bdc77f1278c1f120f874f and < dfd46b5584a5881b131008767950e1ab82713c8c≥ 7d04b0b13b1175ce0c4bdc77f1278c1f120f874f and < 6569fd85b0ef9a8a6f20b7eb868420b8c7c0c2a0≥ 7d04b0b13b1175ce0c4bdc77f1278c1f120f874f and < e7f30dcfa6c64033bf9137362517bd248e5be384≥ 7d04b0b13b1175ce0c4bdc77f1278c1f120f874f and < f0e7d62c1eb984dd204095118973c59604144cd8≥ 7d04b0b13b1175ce0c4bdc77f1278c1f120f874f and < 1734c3fc0066e228ce1c11e434b7c2527f0a949a≥ 7d04b0b13b1175ce0c4bdc77f1278c1f120f874f and < 14cb1e7702e5cb3c58888f6aed498381a73927d2 and 1 more version 5.4	Vulnerable	CVE Program (cve.org) e CISA ADP

EPSS over time FIRST

Oct 13, 2026 → Oct 14, 2026 · 2 reading(s) · max 0.20%

Detection

Read off the CVSS vector and the weakness class. Starting points, not tested rules.

Not enough vector or weakness data: use the affected application’s logs as a starting point.

application logs

Timeline

What happened to this CVE, newest first.

2026
Record published
Oct 13, 2026
Affected products added · linux/linux
Oct 13, 2026 · CVE Program (cve.org) e CISA ADP
Source status changed · → Received
Oct 13, 2026 · NIST National Vulnerability Database
Record created in this database
Oct 13, 2026 · NIST National Vulnerability Database
CVE published
Oct 6, 2026 · Linux

Source activity

Repeated readings are counted rather than listed.

1× Official description updated · Oct 13, 2026 – Oct 13, 2026

References

8 on the record

git.kernel.org/stable/c/e7f30dcfa6c64033bf9137362517bd248e5be384
NIST National Vulnerability Database
git.kernel.org/stable/c/6569fd85b0ef9a8a6f20b7eb868420b8c7c0c2a0
NIST National Vulnerability Database
git.kernel.org/stable/c/1734c3fc0066e228ce1c11e434b7c2527f0a949a
NIST National Vulnerability Database
git.kernel.org/stable/c/14cb1e7702e5cb3c58888f6aed498381a73927d2
NIST National Vulnerability Database
git.kernel.org/stable/c/dfd46b5584a5881b131008767950e1ab82713c8c
NIST National Vulnerability Database
git.kernel.org/stable/c/4ac1d5adc4f4dbafbfd270b55cc6d8bf9849d545
NIST National Vulnerability Database
git.kernel.org/stable/c/5cefdb7acfc646fbded59ae77dfe0aac4c9e4a3c
NIST National Vulnerability Database
git.kernel.org/stable/c/f0e7d62c1eb984dd204095118973c59604144cd8
NIST National Vulnerability Database

Elsewhere on this site

Linux
every CVE for this vendor

Related CVEs (same products)

Critical CVE-2026-99999 ipv4: validate checksum_start before completing checksum 12h
Unknown CVE-2026-98432 ipv4: free inet_opt and ireq_opt after an RCU grace period 12h
Unknown CVE-2026-98424 wifi: cfg80211: undo netns switch if renaming the wiphy fails 1d
Unknown CVE-2026-98425 wifi: mac80211: don't warn when an IBSS has no channel to scan 1d
Unknown CVE-2026-98426 wifi: mwifiex: fix IRQ leak using wrong index in MSI-X error path 1d
Unknown CVE-2026-98427 net/sched: codel: bound the dropping loop per dequeue call 1d

Not in any source we poll

Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.

No CVSS score published by NVD, the CNA, CISA or GitHub so far.
No fixed version, patch or mitigation documented.
No CISA SSVC assessment.
No CWE classification.
No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
No exploit packet captures, log samples, or incident case IDs supplied.

Answered from this record

Text assembled only from the fields above — no additional claims.

What should defenders know first?

CVE-2026-98272 is "net: mvpp2: prevent buffer overflow in page_pool allocation", rated Unknown. It affects Linux (Linux); versions are in the scope table. It is not in CISA KEV, which does not rule out exploitation. EPSS 0.20% estimates the probability of exploitation in 30 days; neither replaces your asset context. First verify whether exposed or business-critical assets run the affected versions, apply vendor fixes or mitigations, and preserve logs for review.

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