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core: svc: always check ta parameters
Always check TA parameters from a user TA. This prevents a user TA from passing invalid pointers to a pseudo TA. Fixes: OP-TEE-2018-0007: "Buffer checks missing when calling pseudo TAs". Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org> Tested-by: Joakim Bech <joakim.bech@linaro.org> (QEMU v7, v8) Reviewed-by: Joakim Bech <joakim.bech@linaro.org> Reported-by: Riscure <inforequest@riscure.com> Reported-by: Alyssa Milburn <a.a.milburn@vu.nl> Acked-by: Etienne Carriere <etienne.carriere@linaro.org>
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