CVE-2025-40174
In the Linux kernel, the following vulnerability has been resolved: x86/mm: Fix SMP ordering in switch_mm_irqs_off() Stephen noted that it
CVSS
7.8
High
EPSS
0.1%
p4
KEV
—
Exploit Today
1
0-100
Published: Nov 12, 2025 · Last modified: Oct 19, 2026
0.1%EPSS · 30 days0.1%
2026-09-302026-10-28
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 ]
No related CVEs by CWE or product.