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In certain Arm CPUs, a CPP RCTX instruction executed on one Processing Element (PE) may inhibit TLB invalidation when a TLBI is issued to the PE, either by the same PE or another PE in the shareability domain. In this case, the PE may retain stale TLB entries which should have been invalidated by the TLBI.

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在释放前未清除敏感信息

ARM CPU 安全漏洞

ARM CPU是英国ARM公司的一系列中央处理器。 ARM CPU存在安全漏洞，该漏洞源于CPP RCTX指令可能抑制TLB失效，导致PE保留应被TLBI失效的陈旧TLB条目。

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