Threats Tagged 'ubuntu-cve-2026-43220'
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Threats Tagged 'ubuntu-cve-2026-43220'
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In the Linux kernel, the following vulnerability has been resolved: iommu/amd: serialize sequence allocation under concurrent TLB invalidations With…CVE-2026-43220 0 In the Linux kernel, the following vulnerability has been resolved: iommu/amd: serialize sequence allocation under concurrent TLB invalidations With concurrent TLB invalidations, completion wait randomly gets timed out because cmd_sem_val was incremented outside the IOMMU spinlock, allowing CMD_COMPL_WAIT commands to be queued out of sequence and breaking the ordering assumption in wait_on_sem(). Move the cmd_sem_val increment under iommu->lock so completion sequence allocation is serialized with command queuing. And remove the unnecessary return. Join the discussion | GCVE Database | 05/06/2026, 12:16:00 UTC Added: 07/17/2026, 10:25:17 UTC |
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