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LoongArch: KVM: Check validity of "num_cpu" from user space
authorBibo Mao <maobibo@loongson.cn>
Fri, 27 Jun 2025 10:27:44 +0000 (18:27 +0800)
committerHuacai Chen <chenhuacai@loongson.cn>
Fri, 27 Jun 2025 10:27:44 +0000 (18:27 +0800)
commitcc8d5b209e09d3b52bca1ffe00045876842d96ae
tree21eef6f0ed202be0cc1e7380fd9c3cb86e461f53tree
parent45515c643d0abb75c2cc760a6bc6b235eadafd66commit | diff
LoongArch: KVM: Check validity of "num_cpu" from user space

The maximum supported cpu number is EIOINTC_ROUTE_MAX_VCPUS about
irqchip EIOINTC, here add validation about cpu number to avoid array
pointer overflow.

Cc: stable@vger.kernel.org
Fixes: 1ad7efa552fd ("LoongArch: KVM: Add EIOINTC user mode read and write functions")
Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
arch/loongarch/kvm/intc/eiointc.c diff | blob | history
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