linux-kernel - [PATCH 5.15 074/148] scsi: qla2xxx: Fix memory leak in __qlt_24xx_handle

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Message-Id: <20220926100758.808496532@linuxfoundation.org>
Date:   Mon, 26 Sep 2022 12:11:48 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Himanshu Madhani <himanshu.madhani@...cle.com>,
        Rafael Mendonca <rafaelmendsr@...il.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.15 074/148] scsi: qla2xxx: Fix memory leak in __qlt_24xx_handle_abts()

From: Rafael Mendonca <rafaelmendsr@...il.com>

[ Upstream commit 601be20fc6a1b762044d2398befffd6bf236cebf ]

Commit 8f394da36a36 ("scsi: qla2xxx: Drop TARGET_SCF_LOOKUP_LUN_FROM_TAG")
made the __qlt_24xx_handle_abts() function return early if
tcm_qla2xxx_find_cmd_by_tag() didn't find a command, but it missed to clean
up the allocated memory for the management command.

Link: https://lore.kernel.org/r/20220914024924.695604-1-rafaelmendsr@gmail.com
Fixes: 8f394da36a36 ("scsi: qla2xxx: Drop TARGET_SCF_LOOKUP_LUN_FROM_TAG")
Reviewed-by: Himanshu Madhani <himanshu.madhani@...cle.com>
Signed-off-by: Rafael Mendonca <rafaelmendsr@...il.com>
Signed-off-by: Martin K. Petersen <martin.petersen@...cle.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/scsi/qla2xxx/qla_target.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/scsi/qla2xxx/qla_target.c b/drivers/scsi/qla2xxx/qla_target.c
index b86f6e1f21b5..4b4ca2a9524d 100644
--- a/drivers/scsi/qla2xxx/qla_target.c
+++ b/drivers/scsi/qla2xxx/qla_target.c
@@ -2166,8 +2166,10 @@ static int __qlt_24xx_handle_abts(struct scsi_qla_host *vha,
 
 	abort_cmd = ha->tgt.tgt_ops->find_cmd_by_tag(sess,
 				le32_to_cpu(abts->exchange_addr_to_abort));
-	if (!abort_cmd)
+	if (!abort_cmd) {
+		mempool_free(mcmd, qla_tgt_mgmt_cmd_mempool);
 		return -EIO;
+	}
 	mcmd->unpacked_lun = abort_cmd->se_cmd.orig_fe_lun;
 
 	if (abort_cmd->qpair) {
-- 
2.35.1