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| author | Nicholas Bellinger <nab@linux-iscsi.org> | 2012-10-31 22:04:26 -0700 |
|---|---|---|
| committer | Nicholas Bellinger <nab@linux-iscsi.org> | 2012-10-31 22:17:12 -0700 |
| commit | dea5f0998aa82bdeca260b87c653db11e91329b2 (patch) | |
| tree | afa8927fa7a9e88f28f00630b40001e748dfa828 /drivers | |
| parent | 1a1ff38c4cebf23be8bf0009a76b082a13bd25cb (diff) | |
| download | linux-3.10-dea5f0998aa82bdeca260b87c653db11e91329b2.tar.gz linux-3.10-dea5f0998aa82bdeca260b87c653db11e91329b2.tar.bz2 linux-3.10-dea5f0998aa82bdeca260b87c653db11e91329b2.zip | |
target: Re-add explict zeroing of INQUIRY bounce buffer memory
This patch fixes a regression in spc_emulate_inquiry() code where the
local scope bounce buffer was no longer getting it's memory zeroed,
causing various problems with SCSI initiators that depend upon areas
of INQUIRY EVPD=0x83 payload having been zeroed.
This bug was introduced with the following v3.7-rc1 patch + CC'ed
stable commit:
commit ffe7b0e9326d9c68f5688bef691dd49f1e0d3651
Author: Paolo Bonzini <pbonzini@redhat.com>
Date: Fri Sep 7 17:30:38 2012 +0200
target: support zero allocation length in INQUIRY
Go ahead and re-add the missing memset of bounce buffer memory to be
copied into the outgoing se_cmd descriptor kmapped SGL payload.
Reported-by: Kelsey Prantis <kelsey.prantis@intel.com>
Cc: Kelsey Prantis <kelsey.prantis@intel.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Andy Grover <agrover@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/target/target_core_spc.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/target/target_core_spc.c b/drivers/target/target_core_spc.c index 9229bd9ad61..6fd434d3d7e 100644 --- a/drivers/target/target_core_spc.c +++ b/drivers/target/target_core_spc.c @@ -605,6 +605,8 @@ static int spc_emulate_inquiry(struct se_cmd *cmd) unsigned char buf[SE_INQUIRY_BUF]; int p, ret; + memset(buf, 0, SE_INQUIRY_BUF); + if (dev == tpg->tpg_virt_lun0.lun_se_dev) buf[0] = 0x3f; /* Not connected */ else |