diff options
| author | Max Lohrmann <post@wickenrode.com> | 2017-03-07 22:09:56 -0800 |
|---|---|---|
| committer | Sasha Levin <alexander.levin@verizon.com> | 2017-05-17 15:07:00 -0400 |
| commit | 248e94265dd01fca20289ab9c69415e97908f1ae (patch) | |
| tree | 931290d436e083a47b3fecc41b1cd2a42e833345 /drivers/target | |
| parent | 452c3c92732548b2b4eafd316d35b1711660858f (diff) | |
target: Fix VERIFY_16 handling in sbc_parse_cdb
[ Upstream commit 13603685c1f12c67a7a2427f00b63f39a2b6f7c9 ]
As reported by Max, the Windows 2008 R2 chkdsk utility expects
VERIFY_16 to be supported, and does not handle the returned
CHECK_CONDITION properly, resulting in an infinite loop.
The kernel will log huge amounts of this error:
kernel: TARGET_CORE[iSCSI]: Unsupported SCSI Opcode 0x8f, sending
CHECK_CONDITION.
Signed-off-by: Max Lohrmann <post@wickenrode.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Diffstat (limited to 'drivers/target')
| -rw-r--r-- | drivers/target/target_core_sbc.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/target/target_core_sbc.c b/drivers/target/target_core_sbc.c index 35180fbaa460..0be98ced8bce 100644 --- a/drivers/target/target_core_sbc.c +++ b/drivers/target/target_core_sbc.c @@ -1048,9 +1048,15 @@ sbc_parse_cdb(struct se_cmd *cmd, struct sbc_ops *ops) return ret; break; case VERIFY: + case VERIFY_16: size = 0; - sectors = transport_get_sectors_10(cdb); - cmd->t_task_lba = transport_lba_32(cdb); + if (cdb[0] == VERIFY) { + sectors = transport_get_sectors_10(cdb); + cmd->t_task_lba = transport_lba_32(cdb); + } else { + sectors = transport_get_sectors_16(cdb); + cmd->t_task_lba = transport_lba_64(cdb); + } cmd->execute_cmd = sbc_emulate_noop; goto check_lba; case REZERO_UNIT: |