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PUBLISHED

2026-05-08 14:16

MODIFIED

2026-05-08 14:16

EPSS (Prob. Exploit)

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Top 98.0%

DATA SOURCES:

NVD 🔗 2026-05-08 RED HAT 🔗 2026-05-10 FIRST EPSS 🔗 2026-11-08 OSV 🔗 2026-11-02

> DESCRIPTION

In the Linux kernel, the following vulnerability has been resolved: ACPI: processor: Fix NULL-pointer dereference in acpi_processor_errata_piix4() In acpi_processor_errata_piix4(), the pointer dev is first assigned an IDE device and then reassigned an ISA device: dev = pci_get_subsys(..., PCI_DEVICE_ID_INTEL_82371AB, ...); dev = pci_get_subsys(..., PCI_DEVICE_ID_INTEL_82371AB_0, ...); If the first lookup succeeds but the second fails, dev becomes NULL. This leads to a potential null-pointer dereference when dev_dbg() is called: if (errata.piix4.bmisx) dev_dbg(&dev->dev, ...); To prevent this, use two temporary pointers and retrieve each device independently, avoiding overwriting dev with a possible NULL value. [ rjw: Subject adjustment, added an empty code line ]

> AFFECTED_PRODUCTS

ℹ️ Aucun produit affecté n'a encore été publié par NVD pour cette CVE.

> RED HAT SEVERITY ASSESSMENT

THREAT SEVERITY

Low

> OSV (GOOGLE OPEN SOURCE VULNERABILITIES)

ACPI: processor: Fix NULL-pointer dereference in acpi_processor_errata_piix4()

AFFECTED PACKAGES:

Unknown / Unknown

1486 versions affected

Linux / Kernel

> HISTORIQUE DES MODIFICATIONS

Première apparition

08/05/2026 14:16

Source: NVD

📊 ENRICHISSEMENT 10/05/2026 05:00

REDHAT

Champ modifié: Sévérité Red Hat

Ancienne valeur:

{ "severity_scale": null, "threat_severity": "Low" }

Nouvelle valeur:

{ "threat_severity": "Low", "severity_scale": null }

📊 ENRICHISSEMENT 09/05/2026 23:30

REDHAT

Champ modifié: Sévérité Red Hat

Ancienne valeur:

{ "severity_scale": null, "threat_severity": "Low" }

Nouvelle valeur:

{ "threat_severity": "Low", "severity_scale": null }

📊 ENRICHISSEMENT 09/05/2026 22:30

REDHAT

Champ modifié: Sévérité Red Hat

Ancienne valeur:

{ "severity_scale": null, "threat_severity": "Low" }

Nouvelle valeur:

{ "threat_severity": "Low", "severity_scale": null }

📊 ENRICHISSEMENT 09/05/2026 21:30

REDHAT

Champ modifié: Sévérité Red Hat

Ancienne valeur:

{ "severity_scale": null, "threat_severity": "Low" }

Nouvelle valeur:

{ "threat_severity": "Low", "severity_scale": null }

📊 ENRICHISSEMENT 09/05/2026 20:30

REDHAT

Champ modifié: Sévérité Red Hat

Ancienne valeur:

{ "severity_scale": null, "threat_severity": "Low" }

Nouvelle valeur:

{ "threat_severity": "Low", "severity_scale": null }

📊 ENRICHISSEMENT 09/05/2026 19:30

REDHAT

Champ modifié: Sévérité Red Hat

Ancienne valeur:

{ "severity_scale": null, "threat_severity": "Low" }

Nouvelle valeur:

{ "threat_severity": "Low", "severity_scale": null }

📊 ENRICHISSEMENT 09/05/2026 18:30

REDHAT

Champ modifié: Sévérité Red Hat

Ancienne valeur:

{ "severity_scale": null, "threat_severity": "Low" }

Nouvelle valeur:

{ "threat_severity": "Low", "severity_scale": null }

📊 ENRICHISSEMENT 09/05/2026 17:30

REDHAT

Champ modifié: Sévérité Red Hat

Ancienne valeur:

{ "severity_scale": null, "threat_severity": "Low" }

Nouvelle valeur:

{ "threat_severity": "Low", "severity_scale": null }

📊 ENRICHISSEMENT 09/05/2026 16:30

REDHAT

Champ modifié: Sévérité Red Hat

Ancienne valeur:

{ "severity_scale": null, "threat_severity": "Low" }

Nouvelle valeur:

{ "threat_severity": "Low", "severity_scale": null }

📊 ENRICHISSEMENT 09/05/2026 15:30

REDHAT

Champ modifié: Sévérité Red Hat

Ancienne valeur:

{ "severity_scale": null, "threat_severity": "Low" }

Nouvelle valeur:

{ "threat_severity": "Low", "severity_scale": null }

📊 ENRICHISSEMENT 09/05/2026 14:30

REDHAT

Champ modifié: Sévérité Red Hat

Ancienne valeur:

{ "severity_scale": null, "threat_severity": "Low" }

Nouvelle valeur:

{ "threat_severity": "Low", "severity_scale": null }

📊 ENRICHISSEMENT 09/05/2026 13:30

REDHAT

Champ modifié: Sévérité Red Hat

Ancienne valeur:

{ "severity_scale": null, "threat_severity": "Low" }

Nouvelle valeur:

{ "threat_severity": "Low", "severity_scale": null }

📊 ENRICHISSEMENT 09/05/2026 12:30

REDHAT

Champ modifié: Sévérité Red Hat

Ancienne valeur:

{ "severity_scale": null, "threat_severity": "Low" }

Nouvelle valeur:

{ "threat_severity": "Low", "severity_scale": null }

📊 ENRICHISSEMENT 09/05/2026 11:30

REDHAT

Champ modifié: Sévérité Red Hat

Ancienne valeur:

{ "severity_scale": null, "threat_severity": "Low" }

Nouvelle valeur:

{ "threat_severity": "Low", "severity_scale": null }

📊 ENRICHISSEMENT 09/05/2026 10:30

REDHAT

Champ modifié: Sévérité Red Hat

Ancienne valeur:

{ "severity_scale": null, "threat_severity": "Low" }

Nouvelle valeur:

{ "threat_severity": "Low", "severity_scale": null }

📊 ENRICHISSEMENT 09/05/2026 09:30

REDHAT

Champ modifié: Sévérité Red Hat

Ancienne valeur:

{ "severity_scale": null, "threat_severity": "Low" }

Nouvelle valeur:

{ "threat_severity": "Low", "severity_scale": null }

📊 ENRICHISSEMENT 09/05/2026 08:30

REDHAT

Champ modifié: Sévérité Red Hat

Ancienne valeur:

{ "severity_scale": null, "threat_severity": "Low" }

Nouvelle valeur:

{ "threat_severity": "Low", "severity_scale": null }

📊 ENRICHISSEMENT 09/05/2026 07:30

REDHAT

Champ modifié: Sévérité Red Hat

Ancienne valeur:

{ "severity_scale": null, "threat_severity": "Low" }

Nouvelle valeur:

{ "threat_severity": "Low", "severity_scale": null }

📊 ENRICHISSEMENT 09/05/2026 06:30

REDHAT

Champ modifié: Sévérité Red Hat

Ancienne valeur:

{ "severity_scale": null, "threat_severity": "Low" }

Nouvelle valeur:

{ "threat_severity": "Low", "severity_scale": null }

📊 ENRICHISSEMENT 09/05/2026 05:30

REDHAT

Champ modifié: Sévérité Red Hat

Ancienne valeur:

{ "severity_scale": null, "threat_severity": "Low" }

Nouvelle valeur:

{ "threat_severity": "Low", "severity_scale": null }

📊 ENRICHISSEMENT 09/05/2026 04:30

REDHAT

Champ modifié: Sévérité Red Hat

Ancienne valeur:

{ "severity_scale": null, "threat_severity": "Low" }

Nouvelle valeur:

{ "threat_severity": "Low", "severity_scale": null }

📊 ENRICHISSEMENT 09/05/2026 03:30

REDHAT

Champ modifié: Sévérité Red Hat

Ancienne valeur:

{ "severity_scale": null, "threat_severity": "Low" }

Nouvelle valeur:

{ "threat_severity": "Low", "severity_scale": null }

📊 ENRICHISSEMENT 09/05/2026 02:30

REDHAT

Champ modifié: Sévérité Red Hat

Ancienne valeur:

{ "severity_scale": null, "threat_severity": "Low" }

Nouvelle valeur:

{ "threat_severity": "Low", "severity_scale": null }

📊 ENRICHISSEMENT 09/05/2026 01:30

REDHAT

Champ modifié: Sévérité Red Hat

Ancienne valeur:

{ "severity_scale": null, "threat_severity": "Low" }

Nouvelle valeur:

{ "threat_severity": "Low", "severity_scale": null }

📊 ENRICHISSEMENT 09/05/2026 00:30

REDHAT

Champ modifié: Sévérité Red Hat

Ancienne valeur:

N/A

Nouvelle valeur:

{ "threat_severity": "Low", "severity_scale": null }

📊 ENRICHISSEMENT 09/05/2026 00:30

REDHAT

Champ modifié: Red Hat

Ancienne valeur:

Non

Nouvelle valeur:

Oui

Total des modifications: 26 Dernière mise à jour: 5 months ago

> REFERENCES

https://git.kernel.org/stable/c/01e8751b37a366b1ca561add0042f2ceb18c03bf

https://git.kernel.org/stable/c/0398b641be2b66c2fc7e0163c606ef19372e7ad5

https://git.kernel.org/stable/c/06724a60cfa9767ea90b0f5d3dfb5cdd251b64f5

https://git.kernel.org/stable/c/29f60d3d06818d40118a30d663231f027ae87a05

https://git.kernel.org/stable/c/ad86ac604f8391c0212a91412d4f764c7a85f254

https://git.kernel.org/stable/c/b803811485ac0b2f774b6bf3abc8b999ba3b7033

https://git.kernel.org/stable/c/f132e089fe89cadc2098991f0a3cb05c3f824ac6

« BACK_TO_HOME

> CVE-2026-43313

> DESCRIPTION

> AFFECTED_PRODUCTS

> RED HAT SEVERITY ASSESSMENT

> OSV (GOOGLE OPEN SOURCE VULNERABILITIES)

> HISTORIQUE DES MODIFICATIONS

> REFERENCES