From f18009c7acc4efa72c6bb36f8be1db8b08582dd9 Mon Sep 17 00:00:00 2001 From: =?utf8?q?J=C3=B6rn=20Engel?= Date: Wed, 15 Feb 2012 16:51:32 -0500 Subject: [PATCH] target: fix use after free in target_report_luns commit 382436f8804fe1cb20b9a2a811a10eb2d8554721 upstream. Fix possible NULL pointer dereference in target_report_luns failure path. Signed-off-by: Joern Engel Signed-off-by: Nicholas Bellinger Signed-off-by: Greg Kroah-Hartman --- drivers/target/target_core_device.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/target/target_core_device.c b/drivers/target/target_core_device.c index 19f8aca08098..097178b83b3a 100644 --- a/drivers/target/target_core_device.c +++ b/drivers/target/target_core_device.c @@ -696,12 +696,12 @@ int target_report_luns(struct se_task *se_task) * See SPC3 r07, page 159. */ done: - transport_kunmap_data_sg(se_cmd); lun_count *= 8; buf[0] = ((lun_count >> 24) & 0xff); buf[1] = ((lun_count >> 16) & 0xff); buf[2] = ((lun_count >> 8) & 0xff); buf[3] = (lun_count & 0xff); + transport_kunmap_data_sg(se_cmd); se_task->task_scsi_status = GOOD; transport_complete_task(se_task, 1); -- 2.39.2