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authorJörn Engel <joern@logfs.org>2012-02-15 16:51:32 -0500
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-04-02 09:52:47 -0700
commitf18009c7acc4efa72c6bb36f8be1db8b08582dd9 (patch)
treed6b577bd7ddbca542f1b0cf68412024349894302
parent9a99a9592a98270e37b08574e2ed17b11ae741c3 (diff)
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 <joern@logfs.org> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/target/target_core_device.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/target/target_core_device.c b/drivers/target/target_core_device.c
index 19f8aca0809..097178b83b3 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);