[SCSI] libiscsi_tcp: fix max_r2t manipulation
Problem description from Xi Wang:
A large max_r2t could lead to integer overflow in subsequent call to
iscsi_tcp_r2tpool_alloc(), allocating a smaller buffer than expected
and leading to out-of-bounds write.
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
diff --git a/include/scsi/libiscsi.h b/include/scsi/libiscsi.h
index 2e42e9a..6e33386 100644
--- a/include/scsi/libiscsi.h
+++ b/include/scsi/libiscsi.h
@@ -268,7 +268,7 @@
int lu_reset_timeout;
int tgt_reset_timeout;
int initial_r2t_en;
- unsigned max_r2t;
+ unsigned short max_r2t;
int imm_data_en;
unsigned first_burst;
unsigned max_burst;