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authorBodo Stroesser <bstroesser@ts.fujitsu.com>2020-04-08 15:26:10 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2020-05-02 08:50:59 +0200
commitd31d19b972b1c7404df9fb45eef28dd404c46afb (patch)
treec4d45767f3ed987346892ec8aaf880b1b63ce615
parent24b484739f2b0b6d5f73a40e8f4ab4cc6a116d1c (diff)
scsi: target: fix PR IN / READ FULL STATUS for FC
[ Upstream commit 8fed04eb79a74cbf471dfaa755900a51b37273ab ] Creation of the response to READ FULL STATUS fails for FC based reservations. Reason is the too high loop limit (< 24) in fc_get_pr_transport_id(). The string representation of FC WWPN is 23 chars long only ("11:22:33:44:55:66:77:88"). So when i is 23, the loop body is executed a last time for the ending '\0' of the string and thus hex2bin() reports an error. Link: https://lore.kernel.org/r/20200408132610.14623-3-bstroesser@ts.fujitsu.com Signed-off-by: Bodo Stroesser <bstroesser@ts.fujitsu.com> Reviewed-by: Mike Christie <mchristi@redhat.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
-rw-r--r--drivers/target/target_core_fabric_lib.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/target/target_core_fabric_lib.c b/drivers/target/target_core_fabric_lib.c
index 6b4b354c88aa..b5c970faf585 100644
--- a/drivers/target/target_core_fabric_lib.c
+++ b/drivers/target/target_core_fabric_lib.c
@@ -63,7 +63,7 @@ static int fc_get_pr_transport_id(
* encoded TransportID.
*/
ptr = &se_nacl->initiatorname[0];
- for (i = 0; i < 24; ) {
+ for (i = 0; i < 23; ) {
if (!strncmp(&ptr[i], ":", 1)) {
i++;
continue;