From d814495599354924eb4de84727680564d685ce9e Mon Sep 17 00:00:00 2001 From: Fubo Chen Date: Sun, 13 Feb 2011 15:13:42 -0800 Subject: target: Check LUN numbers in transport_get_lun_for_[cmd,tmr] This patch checks the passed 'unpacked_lun' against TRANSPORT_MAX_LUNS_PER_TPG before reading from struct se_node_acl->device_list[]. Signed-off-by: Fubo Chen Signed-off-by: Nicholas A. Bellinger --- drivers/target/target_core_device.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'drivers/target') diff --git a/drivers/target/target_core_device.c b/drivers/target/target_core_device.c index ba698ea62bb..f5516a1a32e 100644 --- a/drivers/target/target_core_device.c +++ b/drivers/target/target_core_device.c @@ -65,6 +65,12 @@ int transport_get_lun_for_cmd( unsigned long flags; int read_only = 0; + if (unpacked_lun >= TRANSPORT_MAX_LUNS_PER_TPG) { + se_cmd->scsi_sense_reason = TCM_NON_EXISTENT_LUN; + se_cmd->se_cmd_flags |= SCF_SCSI_CDB_EXCEPTION; + return -1; + } + spin_lock_irq(&SE_NODE_ACL(se_sess)->device_list_lock); deve = se_cmd->se_deve = &SE_NODE_ACL(se_sess)->device_list[unpacked_lun]; @@ -187,6 +193,12 @@ int transport_get_lun_for_tmr( struct se_session *se_sess = SE_SESS(se_cmd); struct se_tmr_req *se_tmr = se_cmd->se_tmr_req; + if (unpacked_lun >= TRANSPORT_MAX_LUNS_PER_TPG) { + se_cmd->scsi_sense_reason = TCM_NON_EXISTENT_LUN; + se_cmd->se_cmd_flags |= SCF_SCSI_CDB_EXCEPTION; + return -1; + } + spin_lock_irq(&SE_NODE_ACL(se_sess)->device_list_lock); deve = se_cmd->se_deve = &SE_NODE_ACL(se_sess)->device_list[unpacked_lun]; -- cgit v1.2.3-18-g5258