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 ]

INFO

Published Date :

2025-11-12T10:53:49.859Z

Last Modified :

2025-12-01T06:19:29.596Z

Source :

Linux
AFFECTED PRODUCTS

The following products are affected by CVE-2025-40174 vulnerability.

Vendors Products
Linux
  • Linux Kernel
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2025-40174.

URL Resource
https://git.kernel.org/stable/c/0fe5e3f5fb75c5d88dad24dece3ee75e9d87adeb cve-icon cve-icon
https://git.kernel.org/stable/c/83b0177a6c4889b3a6e865da5e21b2c9d97d0551 cve-icon cve-icon
https://lore.kernel.org/linux-cve-announce/2025111255-CVE-2025-40174-b076@gregkh/T cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2025-40174 cve-icon
https://www.cve.org/CVERecord?id=CVE-2025-40174 cve-icon
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