Mark Rustad 222a806af8 [SCSI] Fix NULL dereferences in scsi_cmd_to_driver ... Avoid crashing if the private_data pointer happens to be NULL. This has been seen sometimes when a host reset happens, notably when there are many LUNs: host3: Assigned Port ID 0c1601 scsi host3: libfc: Host reset succeeded on port (0c1601) BUG: unable to handle kernel NULL pointer dereference at 0000000000000350 IP: [<ffffffff81352bb8>] scsi_send_eh_cmnd+0x58/0x3a0 <snip> Process scsi_eh_3 (pid: 4144, threadinfo ffff88030920c000, task ffff880326b160c0) Stack: 000000010372e6ba 0000000000000282 000027100920dca0 ffffffffa0038ee0 0000000000000000 0000000000030003 ffff88030920dc80 ffff88030920dc80 00000002000e0000 0000000a00004000 ffff8803242f7760 ffff88031326ed80 Call Trace: [<ffffffff8105b590>] ? lock_timer_base+0x70/0x70 [<ffffffff81352fbe>] scsi_eh_tur+0x3e/0xc0 [<ffffffff81353a36>] scsi_eh_test_devices+0x76/0x170 [<ffffffff81354125>] scsi_eh_host_reset+0x85/0x160 [<ffffffff81354291>] scsi_eh_ready_devs+0x91/0x110 [<ffffffff813543fd>] scsi_unjam_host+0xed/0x1f0 [<ffffffff813546a8>] scsi_error_handler+0x1a8/0x200 [<ffffffff81354500>] ? scsi_unjam_host+0x1f0/0x1f0 [<ffffffff8106ec3e>] kthread+0x9e/0xb0 [<ffffffff81509264>] kernel_thread_helper+0x4/0x10 [<ffffffff8106eba0>] ? kthread_freezable_should_stop+0x70/0x70 [<ffffffff81509260>] ? gs_change+0x13/0x13 Code: 25 28 00 00 00 48 89 45 c8 31 c0 48 8b 87 80 00 00 00 48 8d b5 60 ff ff ff 89 d1 48 89 fb 41 89 d6 4c 89 fa 48 8b 80 b8 00 00 00 <48> 8b 80 50 03 00 00 48 8b 00 48 89 85 38 ff ff ff 48 8b 07 4c RIP [<ffffffff81352bb8>] scsi_send_eh_cmnd+0x58/0x3a0 RSP <ffff88030920dc50> CR2: 0000000000000350 Signed-off-by: Mark Rustad <mark.d.rustad@intel.com> Tested-by: Marcus Dennis <marcusx.e.dennis@intel.com> Cc: <stable@kernel.org> Signed-off-by: James Bottomley <JBottomley@Parallels.com>		2012-07-08 09:40:51 +01:00
..
acpi	ACPI: fix acpi_bus.h build warnings when ACPI is not enabled	2012-06-04 00:29:11 -04:00
asm-generic	bug.h: Fix up CONFIG_BUG=n implicit function declarations.	2012-06-25 10:32:49 -07:00
crypto
drm	drm: drop comment about this header being autogenerated.	2012-06-22 11:04:55 +01:00
keys
linux	security: Minor improvements to no_new_privs documentation	2012-07-08 00:25:48 +10:00
math-emu
media	[media] patch for Asus My Cinema PS3-100 (1043:48cd)	2012-05-20 16:05:02 -03:00
memory
misc
mtd	UBI: amend commentaries WRT dtype	2012-05-20 20:25:59 +03:00
net	sctp: be more restrictive in transport selection on bundled sacks	2012-06-30 22:44:35 -07:00
pcmcia
rdma	Merge branches 'core', 'cxgb4', 'ipath', 'iser', 'lockdep', 'mlx4', 'nes', 'ocrdma', 'qib' and 'raw-qp' into for-linus	2012-05-21 09:00:47 -07:00
rxrpc
scsi	[SCSI] Fix NULL dereferences in scsi_cmd_to_driver	2012-07-08 09:40:51 +01:00
sound	Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media	2012-06-25 14:53:09 -07:00
target	target: Add TFO->put_session() caller for HW fabric session shutdown	2012-06-12 19:33:05 -07:00
trace	rcu: Update RCU_FAST_NO_HZ tracing for lazy callbacks	2012-06-06 20:43:27 -07:00
video	fbdev updates for 3.5	2012-06-01 16:57:51 -07:00
xen	xen: do not map the same GSI twice in PVHVM guests.	2012-05-21 14:11:36 -04:00
Kbuild