Description (CNA)
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 (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 209954cbc7d0ce1a190fc725d20ce303d74d2680 before 0fe5e3f5fb75c5d88dad24dece3ee75e9d87adeb; affected 209954cbc7d0ce1a190fc725d20ce303d74d2680 before 83b0177a6c4889b3a6e865da5e21b2c9d97d0551 |
| Linux / Linux | affected 6.14; unaffected 0 before 6.14; unaffected 6.17.5 through 6.17.*; unaffected 6.18 through * |
CWE
No CWE identifiers supplied.