linux/include/scsi
Krishnasamy, Somasundaram 4000177363 ses: Avoid kernel panic when lun 0 is not mapped
commit d1e12de804 upstream.

During device discovery, scsi mid layer sends INQUIRY command to LUN
0. If the LUN 0 is not mapped to host, it creates a temporary
scsi_device with LUN id 0 and sends REPORT_LUNS command to it. After
the REPORT_LUNS succeeds, it walks through the LUN table and adds each
LUN found to sysfs. At the end of REPORT_LUNS lun table scan, it will
delete the temporary scsi_device of LUN 0.

When scsi devices are added to sysfs, it calls add_dev function of all
the registered class interfaces. If ses driver has been registered,
ses_intf_add() of ses module will be called. This function calls
scsi_device_enclosure() to check the inquiry data for EncServ
bit. Since inquiry was not allocated for temporary LUN 0 scsi_device,
it will cause NULL pointer exception.

To fix the problem, sdev->inquiry is checked for NULL before reading it.

Signed-off-by: Somasundaram Krishnasamy <Somasundaram.Krishnasamy@lsi.com>
Signed-off-by: Babu Moger <babu.moger@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-04-14 16:53:20 -07:00
..
fc
fc_encode.h
fc_frame.h
iscsi_if.h
iscsi_proto.h
Kbuild
libfc.h
libfcoe.h
libiscsi_tcp.h
libiscsi.h
libsas.h
libsrp.h
osd_attributes.h
osd_initiator.h
osd_protocol.h
osd_sec.h
osd_sense.h
osd_types.h
sas_ata.h
sas.h
scsi_bsg_fc.h SCSI: fc-transport: Use packed modifier for fc_bsg_request structure. 2010-04-26 07:41:30 -07:00
scsi_cmnd.h
scsi_dbg.h
scsi_device.h ses: Avoid kernel panic when lun 0 is not mapped 2011-04-14 16:53:20 -07:00
scsi_devinfo.h
scsi_dh.h
scsi_driver.h
scsi_eh.h
scsi_host.h
scsi_ioctl.h
scsi_netlink_fc.h
scsi_netlink.h
scsi_scan.h
scsi_tcq.h
scsi_tgt_if.h
scsi_tgt.h
scsi_transport_fc.h
scsi_transport_iscsi.h
scsi_transport_sas.h
scsi_transport_spi.h
scsi_transport_srp.h
scsi_transport.h
scsi.h
scsicam.h
sg.h
srp.h