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Full vulnerability report · 2024
CVE-2024-44949High confidence

parisc: fix a possible DMA corruption

Linux · Linux

7.8HighCVSS 3.1
Recommended action
Within 7 days

High technical severity; prioritise exposed affected systems while verifying vendor guidance.

Patch available
Distribution package intelligence

Ubuntu vendor package status

Canonical’s release and source-package findings are shown separately from local repository availability.

2 package states
Repository candidate not checked

A published vendor fix does not prove that a matching update is enabled and installable on a particular asset. Confirm the local package candidate before scheduling remediation.

Ubuntu releaseSource packageVendor stateFixed versionEvidence
Ubuntu 24.04 LTSnoble · standard archivelinux-raspi-realtimeAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical record ↗Source updated 10 Sept 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-realtimeAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical record ↗Source updated 10 Sept 2026
Direct vendor intelligence

Authoritative vendor CSAF and VEX advisories

Structured product status and remediation from the issuing vendor. Product-state explanations are always visible; large lists can be searched or downloaded.

2 current
SSA-355557 · CSAF 2.0 · revision 3 · interimSiemens ProductCERTSSA-355557: Multiple Vulnerabilities in Third-Party Components in SINEC OS before V3.2
3 known not affected

The vendor explicitly states that these products are not affected by this CVE.

  • RUGGEDCOM RST2428P (6GK6242-6PA00)
  • SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family
  • SCALANCE XCM-/XRM-/XCH-/XRH-300 family
Summary
parisc: fix a possible DMA corruption ARCH_DMA_MINALIGN was defined as 16 - this is too small - it may be possible that two unrelated 16-byte allocations share a cache line. If one of these allocations is written using DMA and the other is written using cached write, the value that was written with DMA may be corrupted.
Remediation
No remediation text is recorded.
SSA-613116 · CSAF 2.0 · revision 3 · interimSiemens ProductCERTSSA-613116: Multiple Vulnerabilities in Third-Party Components in SINEC OS before V3.1
2 known affected

The vendor explicitly identifies these products as affected by this CVE.

  • RUGGEDCOM RST2428P (6GK6242-6PA00)
  • SCALANCE XCM-/XRM-/XCH-/XRH-300 family
Summary
parisc: fix a possible DMA corruption ARCH_DMA_MINALIGN was defined as 16 - this is too small - it may be possible that two unrelated 16-byte allocations share a cache line. If one of these allocations is written using DMA and the other is written using cached write, the value that was written with DMA may be corrupted.
Remediation
Update to V3.1 or later version
Optional official sources

National CERT insights
?CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.

Select the national-authority views to include. The exact source language is shown on each matched advisory. Your choice is remembered on this device and encoded in the shareable URL.

Official European source

ENISA European Vulnerability Database

Official EUVD identifiers, advisory evidence and known-exploited context. Missing fields are not treated as evidence of low risk.

1 current
ENISA EUVD identifier

EUVD-2024-41203

No EUVD known-exploited evidence

ENISA has published the identifier mapping but no EUVD description has been stored yet.

EUVD state
Present in the current official mapping
Known exploitation
Not present in the current ENISA EUVD known-exploited dataset. This is not proof of no exploitation.
ENISA score
Not supplied in the stored EUVD record
Advisory evidence
No linked advisory details stored yet
Recommended actionWithin 7 days

High technical severity; prioritise exposed affected systems while verifying vendor guidance.

Patch available
01

What, why and how

In the Linux kernel, the following vulnerability has been resolved: parisc: fix a possible DMA corruption ARCH_DMA_MINALIGN was defined as 16 - this is too small - it may be possible that two unrelated 16-byte allocations share a cache line. If one of these allocations is written using DMA and the other is written using cached write, the value that was written with DMA may be corrupted. This commit changes ARCH_DMA_MINALIGN to be 128 on PA20 and 32 on PA1.1 - that's the largest possible cache line size. As different parisc microarchitectures have different cache line size, we define arch_slab_minalign(), cache_line_size() and dma_get_cache_alignment() so that the kernel may tune slab cache parameters dynamically, based on the detected cache line size.

What

In the Linux kernel, the following vulnerability has been resolved: parisc: fix a possible DMA corruption ARCH_DMA_MINALIGN was defined as 16 - this is too small - it may be possible that two unrelated 16-byte allocations share a cache line. If one of these allocations is written using DMA and the other is written using cached write, the value that was written with DMA may be corrupted. This commit changes ARCH_DMA_MINALIGN to be 128 on PA20 and 32 on PA1.1 - that's the largest possible cache line size. As different parisc microarchitectures have different cache line size, we define arch_slab_minalign(), cache_line_size() and dma_get_cache_alignment() so that the kernel may tune slab cache parameters dynamically, based on the detected cache line size.

Why

The current structured CVE record identifies a security weakness, but the root cause requires confirmation in the linked vendor material.

How

An attacker operating through local access may attempt exploitation with low privileges. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

What

In the Linux kernel, the following vulnerability has been resolved: parisc: fix a possible DMA corruption ARCH_DMA_MINALIGN was defined as 16 - this is too small - it may be possible that two unrelated 16-byte allocations share a cache line. If one of these allocations is written using DMA and the other is written using cached write, the value that was written with DMA may be corrupted. This commit changes ARCH_DMA_MINALIGN to be 128 on PA20 and 32 on PA1.1 - that's the largest possible cache line size. As different parisc microarchitectures have different cache line size, we define arch_slab_minalign(), cache_line_size() and dma_get_cache_alignment() so that the kernel may tune slab cache parameters dynamically, based on the detected cache line size.

Why

The current structured CVE record identifies a security weakness, but the root cause requires confirmation in the linked vendor material.

How

An attacker operating through local access may attempt exploitation with low privileges. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

02

Exploit reality and attack path

CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.

Observed exploitation
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
No confirmed evidence

No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.

Public PoC / exploit material
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
None recorded

No exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.

Likely attack path
local access → vulnerable operation → cause the confidentiality, integrity or availability impact described by the vendor
Attack surface
Local
Privileges required
Low: a basic authenticated account is required
User interaction
None
Attack complexity
Low: no specialised conditions are recorded
Security boundary
Unchanged: impact remains within the vulnerable component's security authority
Weakness
?CWE means Common Weakness Enumeration.
CWE not yet assigned
CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Common Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.

AVLocalAttack vector: The attacker needs local access to the vulnerable system.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRLowPrivileges required: The attacker needs basic user-level privileges.UINoneUser interaction: No action by another user is required.SUnchangedScope: The security impact remains within the vulnerable component's authority.CHighConfidentiality impact: A successful attack can cause a major loss.IHighIntegrity impact: A successful attack can cause a major loss.AHighAvailability impact: A successful attack can cause a major loss.
Post-exploitation / living off the land
The issue can support a local privilege or sandbox boundary transition; normal system utilities may then be available in the gained context.
A

Official authority intelligence

Only matched European and national findings are included. Language selectors and unavailable sources are omitted.

BSI · German · WID-SEC-W-2024-2057Linux Kernel: Mehrere Schwachstellen ermöglichen Denial of Service oder unspezifischer Angriff

Ein lokaler Angreifer kann mehrere Schwachstellen in Linux Kernel ausnutzen, um einen Denial of Service Angriff durchzuführen oder weitere unspezifische Angriffe durchzuführen.

Official advisory
CERT-FR · French · CERTFR-2025-AVI-0677Multiples vulnérabilités dans les produits Siemens

d?id=CVE-2024-43889 Référence CVE CVE-2024-43890 https://www.cve.org/CVERecord?id=CVE-2024-43890 Référence CVE CVE-2024-43893 https://www.cve.org/CVERecord?id=CVE-2024-43893 Référence CVE CVE-2024-43894 https://www.cve.org/CVERecord?id=CVE-2024-43894 Référence CVE CVE-2024-43907 https://www.cve.org/CVERecord?id=CVE-2024-43907 Référence CVE CVE-2024-43908 https://www.cve.org/CVERecord?id=CVE-2024-43908 Référence CVE CVE-2024-43914 https://www.cve.org/CVERecord?id=CVE-2024-43914 Référence CVE CVE-2024-44935 https://www.cve.org/CVERecord?id=CVE-2024-44935 Référence CVE CVE-2024-44944 https://www.cve.org/CVERecord?id=CVE-2024-44944 Référence CVE CVE-2024-44949 https://www.cve.org/CVERecord?id=CVE-2024-44949 Référence CVE CVE-2024-44952 https://www.cve.org/CVERecord?id=CVE-2024-44952 Référence CVE CVE-2024-44954 https://www.cve.org/CVERecord?id=CVE-2024-44954 Référence CVE CVE-2024-44960 https://www.cve.org/CVERecord?id=CVE-2024-44960 Référence CVE CVE-2024-44965 https://www.cve.org/CVERecord?id=CVE-2024-44965 Référence CVE CVE-2024-44969 https://www.cve.org/CVERecord?id=CVE-2024-44969 Référence CVE CVE-2024-44971 https://www.cve.org/CVERecord?id=CVE-2024-44971 Référence CVE CVE-2024-44987 https://www.cve.org/CVERecord?id=CVE-2024-44987 Référence CVE CVE-2024-44988 https://www.cve.org/CVERecord?id=

Official advisory
CERT-FR · French · CERTFR-2025-AVI-0002Multiples vulnérabilités dans le noyau Linux de Debian LTS

d?id=CVE-2024-44934 Référence CVE CVE-2024-44935 https://www.cve.org/CVERecord?id=CVE-2024-44935 Référence CVE CVE-2024-44938 https://www.cve.org/CVERecord?id=CVE-2024-44938 Référence CVE CVE-2024-44939 https://www.cve.org/CVERecord?id=CVE-2024-44939 Référence CVE CVE-2024-44940 https://www.cve.org/CVERecord?id=CVE-2024-44940 Référence CVE CVE-2024-44944 https://www.cve.org/CVERecord?id=CVE-2024-44944 Référence CVE CVE-2024-44946 https://www.cve.org/CVERecord?id=CVE-2024-44946 Référence CVE CVE-2024-44947 https://www.cve.org/CVERecord?id=CVE-2024-44947 Référence CVE CVE-2024-44948 https://www.cve.org/CVERecord?id=CVE-2024-44948 Référence CVE CVE-2024-44949 https://www.cve.org/CVERecord?id=CVE-2024-44949 Référence CVE CVE-2024-44954 https://www.cve.org/CVERecord?id=CVE-2024-44954 Référence CVE CVE-2024-44958 https://www.cve.org/CVERecord?id=CVE-2024-44958 Référence CVE CVE-2024-44960 https://www.cve.org/CVERecord?id=CVE-2024-44960 Référence CVE CVE-2024-44965 https://www.cve.org/CVERecord?id=CVE-2024-44965 Référence CVE CVE-2024-44966 https://www.cve.org/CVERecord?id=CVE-2024-44966 Référence CVE CVE-2024-44967 https://www.cve.org/CVERecord?id=CVE-2024-44967 Référence CVE CVE-2024-44968 https://www.cve.org/CVERecord?id=CVE-2024-44968 Référence CVE CVE-2024-44969 https://www.cve.org/CVERecord?id=

Official advisory
CERT-FR · French · CERTFR-2024-AVI-1031Multiples vulnérabilités dans le noyau Linux de Debian

d?id=CVE-2024-36915 Référence CVE CVE-2024-36923 https://www.cve.org/CVERecord?id=CVE-2024-36923 Référence CVE CVE-2024-38540 https://www.cve.org/CVERecord?id=CVE-2024-38540 Référence CVE CVE-2024-38553 https://www.cve.org/CVERecord?id=CVE-2024-38553 Référence CVE CVE-2024-41080 https://www.cve.org/CVERecord?id=CVE-2024-41080 Référence CVE CVE-2024-42322 https://www.cve.org/CVERecord?id=CVE-2024-42322 Référence CVE CVE-2024-43868 https://www.cve.org/CVERecord?id=CVE-2024-43868 Référence CVE CVE-2024-43904 https://www.cve.org/CVERecord?id=CVE-2024-43904 Référence CVE CVE-2024-43911 https://www.cve.org/CVERecord?id=CVE-2024-43911 Référence CVE CVE-2024-44949 https://www.cve.org/CVERecord?id=CVE-2024-44949 Référence CVE CVE-2024-49950 https://www.cve.org/CVERecord?id=CVE-2024-49950 Référence CVE CVE-2024-49960 https://www.cve.org/CVERecord?id=CVE-2024-49960 Référence CVE CVE-2024-49974 https://www.cve.org/CVERecord?id=CVE-2024-49974 Référence CVE CVE-2024-49986 https://www.cve.org/CVERecord?id=CVE-2024-49986 Référence CVE CVE-2024-49991 https://www.cve.org/CVERecord?id=CVE-2024-49991 Référence CVE CVE-2024-50012 https://www.cve.org/CVERecord?id=CVE-2024-50012 Référence CVE CVE-2024-50036 https://www.cve.org/CVERecord?id=CVE-2024-50036 Référence CVE CVE-2024-50067 https://www.cve.org/CVERecord?id=

Official advisory
03

Patch and workaround

Operational remediation based on structured source evidence.

Status
?Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.
Patch available
Affected
RUGGEDCOM RST2428P (6GK6242-6PA00); SCALANCE XCM-/XRM-/XCH-/XRH-300 family
Fixed
< 4.4; 6.1.119 ≤ 6.1.*; 6.6.46 ≤ 6.6.*; 6.10.5 ≤ 6.10.*; 6.11 ≤ *
Action
Update to V3.1 or later version
Workaround
No verified workaround is recorded. Limit untrusted access and use least privilege until authoritative guidance is available.
04

Evidence and provenance

Published 4 Sept 2024 · Last source change 5 Aug 2026, 11:37 UTC · CWE not yet assigned

CVE recordCVE.org · 5.2
CVSS sourceCNA
EPSS source
?The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.
FIRST · tracked since 2026-08-14
European sourceENISA EUVD · EUVD-2024-41203
Product sourceVendor CSAF · Siemens ProductCERT
Remediation sourceVendor CSAF · Siemens ProductCERT
CWE sourceUnavailable
NVD statusNVD modified after enrichment

Missing structured fields: CWE classification. Missing data is not evidence of low risk; review the primary advisory.

Material change intelligence

What changed after publication

View recent updates →

No material field changes have been recorded since change tracking began. Routine source refreshes and cosmetic edits are intentionally excluded.

Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
Fixed release or patch reference recorded
ENISA EUVD · EUVD-2024-41203↗Vendor CSAF · Siemens ProductCERT↗Patch or update reference↗Patch or update reference↗Patch or update reference↗CVE authority or vendor reference↗Official CVE record (CNA and ADP data)↗NVD record↗
Technical terms and abbreviations used in this report
CVE
Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
CVSS
Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
EPSS
Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
CWE
Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
CNA
CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
CISA ADP
Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
NVD
National Vulnerability Database: NIST's enrichment service for CVE records.
CERT / CSIRT
A computer security incident response team that publishes warnings or coordinates incident response.
PoC
Proof of concept: public material that demonstrates or helps reproduce exploitation.
CSAF
Common Security Advisory Framework: a machine-readable format for security advisories.
LoTL
Living off the land: abuse of legitimate tools or system functions during an attack.
Free version - for non-commercial use only.CVE-2024-44949 · cve.blacktree.nl