vhost/scsi: truncate T10 PI iov_iter to prot_bytes

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commit 4542d623c7 upstream.

Commands with protection information included were not truncating the
protection iov_iter to the number of protection bytes in the command.
This resulted in vhost_scsi mis-calculating the size of the protection
SGL in vhost_scsi_calc_sgls(), and including both the protection and
data SG entries in the protection SGL.

Fixes: 09b13fa8c1 ("vhost/scsi: Add ANY_LAYOUT support in vhost_scsi_handle_vq")
Signed-off-by: Greg Edwards <gedwards@ddn.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Fixes: 09b13fa8c1
Cc: stable@vger.kernel.org
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Greg Edwards 2018-08-22 13:21:53 -06:00 • committed by Greg Kroah-Hartman

parent 12555475a0

commit b1e99af92f

1 changed files with 3 additions and 1 deletions

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drivers/vhost/scsi.c

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