Dear MdeModulePkg maintainer, Please find the attached patch that should fix the following issue:
The call in ProbeMediaStatus() to the ReadDisk() function of the EFI_DISK_IO_PROTOCOL interface implemented in DiskIoDxe/DiskIo.c crashed in DiskIo2ReadWriteDisk() because of the NULL value of the destination buffer pointer. Pass the address of a buffer in the stack instead of a NULL pointer. In addition to avoiding the crash, that way, the media probe does not depend anymore on the way the EFI_DISK_IO_PROTOCOL implementation deals with a NULL value of the destination buffer pointer as the UEFI specification does not specify the expected behaviour. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Ronald Cron <ronald.c...@arm.com<mailto:ronald.c...@arm.com>> Reviewed-by: Olivier Martin <olivier.mar...@arm.com> Regards, Olivier -- IMPORTANT NOTICE: The contents of this email and any attachments are confidential and may also be privileged. If you are not the intended recipient, please notify the sender immediately and do not disclose the contents to any other person, use it for any purpose, or store or copy the information in any medium. Thank you. ARM Limited, Registered office 110 Fulbourn Road, Cambridge CB1 9NJ, Registered in England & Wales, Company No: 2557590 ARM Holdings plc, Registered office 110 Fulbourn Road, Cambridge CB1 9NJ, Registered in England & Wales, Company No: 2548782
MdeModulePkg-PartitionDxe-Fix-media-probe.patch
Description: MdeModulePkg-PartitionDxe-Fix-media-probe.patch
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