[patch] [SCSI] tcm_loop: off by one in tcm_loop_make_naa_tpg()

[Dan Carpenter]

This is an off by one that could result in memory corruption.

Signed-off-by: Dan Carpenter <error27@xxxxxxxxx>

diff --git a/drivers/target/loopback/tcm_loop.c b/drivers/target/loopback/tcm_loop.c
index aed4e46..2bb5062 100644
--- a/drivers/target/loopback/tcm_loop.c
+++ b/drivers/target/loopback/tcm_loop.c
@@ -1239,7 +1239,7 @@ struct se_portal_group *tcm_loop_make_naa_tpg(
 	tpgt_str += 5; /* Skip ahead of "tpgt_" */
 	tpgt = (unsigned short int) simple_strtoul(tpgt_str, &end_ptr, 0);
 
-	if (tpgt > TL_TPGS_PER_HBA) {
+	if (tpgt >= TL_TPGS_PER_HBA) {
 		printk(KERN_ERR "Passed tpgt: %hu exceeds TL_TPGS_PER_HBA:"
 				" %u\n", tpgt, TL_TPGS_PER_HBA);
 		return ERR_PTR(-EINVAL);
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/