CVE-2025-40174
Published: Nov 12, 2025
Modified: May 11, 2026
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 ]
| Vendor | Product | Versions |
|---|---|---|
Linux | Linux | affected 209954cbc7d0ce1a190fc725d20ce303d74d2680 - < 0fe5e3f5fb75c5d88dad24dece3ee75e9d87adebaffected 209954cbc7d0ce1a190fc725d20ce303d74d2680 - < 83b0177a6c4889b3a6e865da5e21b2c9d97d0551 |
Linux | Linux | affected 6.14unaffected 0 - < 6.14unaffected 6.17.5 - <= 6.17.*unaffected 6.18 - <= * |
Security Training
Train your team to recognize and prevent security threats with our comprehensive security awareness program.
Start TrainingVulnerability Scanning
Discover vulnerabilities in your applications and infrastructure before attackers do.
Scan Now