> CVE-2025-40174

« BACK_TO_HOME
PUBLISHED
2025-11-12 11:15
MODIFIED
2025-11-12 11:15
EPSS (Prob. Exploit)
0.14%
Top 96.7%
DATA SOURCES:
NVD 🔗 2025-11-12 RED HAT 🔗 2025-11-16 CVE PROJECT 🔗 2026-01-19 FIRST EPSS 🔗 2026-10-25 OSV 🔗 2026-03-01

> DESCRIPTION

In the Linux kernel, the following vulnerability has been resolved: x86/mm: Fix SMP ordering in switch_mm_irqs_off() Stephen noted that it is possible to not have an smp_mb() between the loaded_mm store and the tlb_gen load in switch_mm(), meaning the ordering against flush_tlb_mm_range() goes out the window, and it becomes possible for switch_mm() to not observe a recent tlb_gen update and fail to flush the TLBs. [ dhansen: merge conflict fixed by Ingo ]

> AFFECTED_PRODUCTS

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

> RED HAT SEVERITY ASSESSMENT

THREAT SEVERITY
Moderate

> OSV (GOOGLE OPEN SOURCE VULNERABILITIES)

x86/mm: Fix SMP ordering in switch_mm_irqs_off()

AFFECTED PACKAGES:
Unknown / Unknown
46 versions affected
Linux / Kernel

> HISTORIQUE DES MODIFICATIONS

Première apparition
12/11/2025 11:15
Source: NVD
📊 ENRICHISSEMENT 19/01/2026 17:36
CVEPROJECT
Champ modifié: CVE Project
Ancienne valeur:
Non
Nouvelle valeur:
Oui
📊 ENRICHISSEMENT 16/11/2025 04:01
REDHAT
Champ modifié: Sévérité Red Hat
Ancienne valeur:
N/A
Nouvelle valeur:
{ "threat_severity": "Moderate", "severity_scale": null }
📊 ENRICHISSEMENT 16/11/2025 04:01
REDHAT
Champ modifié: Red Hat
Ancienne valeur:
Non
Nouvelle valeur:
Oui
Total des modifications: 3 Dernière mise à jour: 9 months ago

> REFERENCES

https://git.kernel.org/stable/c/0fe5e3f5fb75c5d88dad24dece3ee75e9d87adeb
https://git.kernel.org/stable/c/83b0177a6c4889b3a6e865da5e21b2c9d97d0551
« BACK_TO_HOME