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CVE.org (no NVD analysis yet)· CNA Linux

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

Noroxi assessment

Priority: Monitor (action score 0/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.19% (FIRST EPSS).
  • Fixed version: Linux Linux 14cb1e7702e5cb3c58888f6aed498381a73927d2, 1734c3fc0066e228ce1c11e434b7c2527f0a949a, 4ac1d5adc4f4dbafbfd270b55cc6d8bf9849d545; azl3 kernel 6.6.157.1-1 on Azure Linux 3.0 6.6.158.1-1.

Low priority for now. Upgrade to Linux Linux 14cb1e7702e5cb3c58888f6aed498381a73927d2, 1734c3fc0066e228ce1c11e434b7c2527f0a949a, 4ac1d5adc4f4dbafbfd270b55cc6d8bf9849d545; azl3 kernel 6.6.157.1-1 on Azure Linux 3.0 6.6.158.1-1 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

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.

—No exploit Fix available
Published
Oct 6, 2026
Updated
Oct 19, 2026
EPSS
0.1% · 9th percentile
CWE
—

Report tools

JSON

Action score

0

Monitor

Low priority for now.

CVSS
0 / 40 · —
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.1%

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  • No public exploit code on record
  • A fix has been released

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Noroxi analysis

What does it mean in your environment?

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

—

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.

  • Linux Linux

    • 5.4affected
    • 7d04b0b13b1175ce0c4bdc77f1278c1f120f874f and later · before 5cefdb7acfc646fbded59ae77dfe0aac4c9e4a3caffected · git
    • 7d04b0b13b1175ce0c4bdc77f1278c1f120f874f and later · before 4ac1d5adc4f4dbafbfd270b55cc6d8bf9849d545affected · git
    • 7d04b0b13b1175ce0c4bdc77f1278c1f120f874f and later · before dfd46b5584a5881b131008767950e1ab82713c8caffected · git
    • 7d04b0b13b1175ce0c4bdc77f1278c1f120f874f and later · before 6569fd85b0ef9a8a6f20b7eb868420b8c7c0c2a0affected · git
    • 7d04b0b13b1175ce0c4bdc77f1278c1f120f874f and later · before e7f30dcfa6c64033bf9137362517bd248e5be384affected · git
    • 7d04b0b13b1175ce0c4bdc77f1278c1f120f874f and later · before f0e7d62c1eb984dd204095118973c59604144cd8affected · git
    • 7d04b0b13b1175ce0c4bdc77f1278c1f120f874f and later · before 1734c3fc0066e228ce1c11e434b7c2527f0a949aaffected · git
    • 7d04b0b13b1175ce0c4bdc77f1278c1f120f874f and later · before 14cb1e7702e5cb3c58888f6aed498381a73927d2affected · git
    • before 5.4not affected · semver

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.190-16.1.190-1
Debian:12linux-6.12before 6.12.113-1~deb12u16.12.113-1~deb12u1
Debian:13linuxbefore 6.12.113-16.12.113-1
Debian:14linuxbefore 7.2.8-17.2.8-1

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-74705udp: fix potential use-after-free in tunnel segmentation
    40Plan
  • CVE-2026-74612veth: fix skb length accounting after XDP frag adjustment
    40Plan
  • CVE-2026-74475vxlan: use neigh_ha_snapshot() in route_shortcircuit()
    40Plan

Published before and after this one in the same product

  • ← EarlierCVE-2026-98270Oct 6, 2026 · drm/amdgpu: check ras and obj before dereference
    0Monitor
  • ← EarlierCVE-2026-98271Oct 6, 2026 · net: skbuff: do not leave stale header offsets after pskb_carve()
    0Monitor
  • Later →CVE-2026-98273Oct 6, 2026 · x86/kprobes: Fix crash when probing CS CALL instructions
    0Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Linux Linux14cb1e7702e5cb3c58888f6aed498381a73927d2Vendor (CNA)
Linux Linux1734c3fc0066e228ce1c11e434b7c2527f0a949aVendor (CNA)
Linux Linux4ac1d5adc4f4dbafbfd270b55cc6d8bf9849d545Vendor (CNA)
Linux Linux5cefdb7acfc646fbded59ae77dfe0aac4c9e4a3cVendor (CNA)
Linux Linux6569fd85b0ef9a8a6f20b7eb868420b8c7c0c2a0Vendor (CNA)
Linux Linuxdfd46b5584a5881b131008767950e1ab82713c8cVendor (CNA)
Linux Linuxe7f30dcfa6c64033bf9137362517bd248e5be384Vendor (CNA)
Linux Linuxf0e7d62c1eb984dd204095118973c59604144cd8Vendor (CNA)
azl3 kernel 6.6.157.1-1 on Azure Linux 3.06.6.158.1-1 · Release NotesMicrosoft (MSRC)
debian:linux6.1.190-1 · Debian:12Package registry (OSV)
debian:linux6.12.113-1 · Debian:13Package registry (OSV)
debian:linux7.2.8-1 · Debian:14Package registry (OSV)
debian:linux-6.126.12.113-1~deb12u1 · Debian:12Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

  1. Published
  2. Fix recordedsame day
  3. TodayNov 4, 2026+29 d
EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

No CVSS vector for this record, so attack conditions can't be derived.

Weakness class (CWE)

—

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

  1. Exploit maturity— → none
  2. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (7 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

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