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e9fc63d682
A user could send a passthrough IO command with a metadata pointer to a namespace without metadata. With metadata length of 0, kmalloc returns ZERO_SIZE_PTR. Since that is not NULL, the driver would have set this as the bio's integrity payload, which causes an access fault on completion. This patch ignores the users metadata buffer if the namespace format does not support separate metadata. Reported-by: Stephen Bates <stephen.bates@microsemi.com> Signed-off-by: Keith Busch <keith.busch@intel.com> Reviewed-by: Sagi Grimberg <sagig@mellanox.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Jens Axboe <axboe@fb.com> |
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