Is there a patch available for CVE-2026-98242?

Yes, a patch is available for CVE-2026-98242. Update the affected software to the latest version immediately.

Linux CVE-2026-98242

EUVD-2026-93170

2026-10-06 Linux

GHSA-vfw6-gcwv-53h6

Buffer Overflow Linux

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Awaiting Data No severity or threat signals available yet. Label will update when CVSS score is published or threat intelligence arrives. 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:

dma-buf: Fix silent overflow for phys vec to sgt

In case MMIO size is bigger than 4G and peer2peer DMA goes through host bridge, we trigger a code path that assigns the total linked IOVA (which is greater than 4G) to mapped_len.

Previously, mapped_len was declared as 32-bit unsigned int. When accumulating size_t lengths, this leads to a silent wrap-around. This truncation causes truncated lengths to be passed to functions like fill_sg_entry().

Fix this by changing mapped_len to size_t (64-bit). While at it, fix similar potential overflow issues in calc_sg_nents by using check_add_overflow() for nents and using unsigned int for the loop iterator in fill_sg_entry to match.

Affected VersionsENISA

Linux patch: 7.3-rc4

Linux 3aa31a8bb11e47c0ff2b306988d1756b810c1c3c <6b98fd7106d4e486f432664893dcd4d6fa3a9693

Linux 3aa31a8bb11e47c0ff2b306988d1756b810c1c3c <b344ca94e8cc85796f16ea25e2e5a8e0303fe813

Linux patch: 0

Linux 6.19

Linux patch: 7.2.8

Affected Packages

euvd linux no fix

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

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Exploit and PoC references, threat intelligence from 22 sources

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Lifecycle Timeline

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

Data Quality

1 sources

Confidence: Low

EUVD

CVE.org

EPSS

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

Buffer Overflow HIGH

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.