linux/include
Krishnasamy, Somasundaram d1e12de804 [SCSI] ses: Avoid kernel panic when lun 0 is not mapped
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>
Cc: stable@kernel.org
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-03-23 11:36:01 -05:00
..
acpi PM: Remove CONFIG_PM_OPS 2011-03-15 00:43:15 +01:00
asm-generic add the common dma_addr_t typedef to include/linux/types.h 2011-03-22 17:44:09 -07:00
crypto
drm Merge remote branch 'intel/drm-intel-next' of ../drm-next into drm-core-next 2011-03-14 14:15:13 +10:00
keys
linux smp: add missing init.h include 2011-03-23 07:48:42 -07:00
math-emu
media
mtd
net IPVS: Use global mutex in ip_vs_app.c 2011-03-21 20:39:24 -07:00
pcmcia
rdma
rxrpc
scsi [SCSI] ses: Avoid kernel panic when lun 0 is not mapped 2011-03-23 11:36:01 -05:00
sound Merge branch 'topic/misc' into for-linus 2011-03-18 07:39:08 +01:00
target
trace Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6 2011-03-18 10:46:37 -07:00
video fbdev: sh_mobile_lcdc: Add YUV framebuffer support 2011-03-16 17:27:10 +09:00
xen Merge branch 'stable/xen.pm.bug-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen 2011-03-17 18:37:42 -07:00
Kbuild