| commit | 1c9c1ada7ee0b4b42e451d35153dff3735b28cac | |
| author | Nicholas Bellinger <nab@linux-iscsi.org> | |
| Wed, 16 Nov 2011 06:13:24 +0000 (15 22:13 -0800) | ||
| committer | Greg Kroah-Hartman <gregkh@suse.de> | |
| Wed, 21 Dec 2011 20:58:28 +0000 (21 12:58 -0800) | ||
| tree | d60a25f8b412c70bdfa9fb475a8b4104f67e9816 | treesnapshot (tar.gz zip) |
| parent | f55f75a191f661f652920f788501e6546a60c3f5 | commitdiff |
target: Reject SCSI data overflow for fabrics using transport_generic_map_mem_to_cmd
commit fef58a6096770ed6ab49103a430cc755254a74d9 upstream.
This patch changes transport_generic_map_mem_to_cmd() to reject SCSI data
overflow and to send exception status with CHECK_CONDITION + TCM_INVALID_CDB_FIELD
for fabrics that are passing a pre-populated struct scatterlist (eg: tcm_loop
and iscsi-target) being mapped into se_cmd->t_data_sg and se_cmd->t_data_nents.
This addresses an OOPs where transport_allocate_data_tasks() would walk
the incorrect post OVERFLOW cmd->data_length value beyond the end of
the passed scatterlist.
Cc: Christoph Hellwig <hch@lst.de>
Cc: Andy Grover <agrover@redhat.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
commit fef58a6096770ed6ab49103a430cc755254a74d9 upstream.
This patch changes transport_generic_map_mem_to_cmd() to reject SCSI data
overflow and to send exception status with CHECK_CONDITION + TCM_INVALID_CDB_FIELD
for fabrics that are passing a pre-populated struct scatterlist (eg: tcm_loop
and iscsi-target) being mapped into se_cmd->t_data_sg and se_cmd->t_data_nents.
This addresses an OOPs where transport_allocate_data_tasks() would walk
the incorrect post OVERFLOW cmd->data_length value beyond the end of
the passed scatterlist.
Cc: Christoph Hellwig <hch@lst.de>
Cc: Andy Grover <agrover@redhat.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| drivers/target/target_core_transport.c | diffblobblamehistory |