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X-BeenThere: opensbi@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "opensbi" Errors-To: opensbi-bounces+opensbi=archiver.kernel.org@lists.infradead.org 2025-11-24T14:03:39-08:00, Deepak Gupta : > Expected trap must always clear MPRV. Currently it doesn't. There is a > security issue here where if firmware was doing ld/st with MPRV=1 and > since there would be a expected trap, opensbi will continue to run as > MPRV=1. Security impact is DoS where opensbi will just keep trapping. Does the DoS happen on some implementation? The expected trap came from M-mode, therefore will have mstatus.MPP=3, so MPRV=1 should behave the same as MPRV=0. Thanks. -- opensbi mailing list opensbi@lists.infradead.org http://lists.infradead.org/mailman/listinfo/opensbi