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Bottomley" , "Martin K. Petersen" , linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH] scsi: be2iscsi: Reset the address passed in beiscsi_iface_create_default Date: Tue, 6 Apr 2021 19:24:45 -0500 Message-Id: <20210407002445.2209330-1-pakki001@umn.edu> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org if_info is a local variable that is passed to beiscsi_if_get_info. In case of failure, the variable is free'd but not reset to NULL. The patch avoids security issue by passing NULL to if_info. Signed-off-by: Aditya Pakki --- drivers/scsi/be2iscsi/be_iscsi.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/scsi/be2iscsi/be_iscsi.c b/drivers/scsi/be2iscsi/be_iscsi.c index a13c203ef7a9..1ff9d2a2a876 100644 --- a/drivers/scsi/be2iscsi/be_iscsi.c +++ b/drivers/scsi/be2iscsi/be_iscsi.c @@ -274,11 +274,13 @@ void beiscsi_iface_create_default(struct beiscsi_hba *phba) if (!beiscsi_if_get_info(phba, BEISCSI_IP_TYPE_V4, &if_info)) { beiscsi_iface_create_ipv4(phba); kfree(if_info); + if_info = NULL; } if (!beiscsi_if_get_info(phba, BEISCSI_IP_TYPE_V6, &if_info)) { beiscsi_iface_create_ipv6(phba); kfree(if_info); + if_info = NULL; } } -- 2.25.1