Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
scsi: storvsc: Use vmbus_requestor to generate transaction IDs for VM…
…Bus hardening Currently, pointers to guest memory are passed to Hyper-V as transaction IDs in storvsc. In the face of errors or malicious behavior in Hyper-V, storvsc should not expose or trust the transaction IDs returned by Hyper-V to be valid guest memory addresses. Instead, use small integers generated by vmbus_requestor as requests (transaction) IDs. Signed-off-by: Andres Beltran <lkmlabelt@gmail.com> Co-developed-by: Andrea Parri (Microsoft) <parri.andrea@gmail.com> Signed-off-by: Andrea Parri (Microsoft) <parri.andrea@gmail.com> Reviewed-by: Michael Kelley <mikelley@microsoft.com> Cc: "James E.J. Bottomley" <jejb@linux.ibm.com> Cc: "Martin K. Petersen" <martin.petersen@oracle.com> Cc: linux-scsi@vger.kernel.org Link: https://lore.kernel.org/r/20201109100402.8946-3-parri.andrea@gmail.com Acked-by: Martin K. Petersen <martin.petersen@oracle.com> Reviewed-by: Wei Liu <wei.liu@kernel.org> Signed-off-by: Wei Liu <wei.liu@kernel.org>
- Loading branch information