Search: CVE-2026-53354

CVE-2026-53354 is a high-severity vulnerability in the Linux kernel affecting arm64 architectures. It addresses errata in various Arm CPUs where a broadcast TLBI;DSB sequence may complete before the global observation of writes translated by an invalidated TLB entry. This issue does not affect the actual invalidation of TLB entries but impacts memory access completion. The mitigation involves applying an additional TLBI;DSB sequence to ensure memory write effects are globally observed. The ARM64_WORKAROUND_REPEAT_TLBI workaround is sufficient to mitigate the issue. A fix has been implemented in the Linux kernel.