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From: Javed Hasan <jhasan@marvell.com>
To: <martin.petersen@oracle.com>
Cc: <linux-scsi@vger.kernel.org>,
	<GR-QLogic-Storage-Upstream@marvell.com>, <jhasan@marvell.com>
Subject: [PATCH 2/2] libfc: Corrected the condition check and invalid argument passed
Date: Tue, 1 Jun 2021 10:21:56 -0700	[thread overview]
Message-ID: <20210601172156.31942-3-jhasan@marvell.com> (raw)
In-Reply-To: <20210601172156.31942-1-jhasan@marvell.com>

 -In correct condition check was leading to data corruption
  and so the invalid argument.

Signed-off-by: Javed Hasan <jhasan@marvell.com>

---
 drivers/scsi/libfc/fc_encode.h | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/scsi/libfc/fc_encode.h b/drivers/scsi/libfc/fc_encode.h
index 602c97a651bc..9ea4ceadb559 100644
--- a/drivers/scsi/libfc/fc_encode.h
+++ b/drivers/scsi/libfc/fc_encode.h
@@ -166,9 +166,11 @@ static inline int fc_ct_ns_fill(struct fc_lport *lport,
 static inline void fc_ct_ms_fill_attr(struct fc_fdmi_attr_entry *entry,
 				    const char *in, size_t len)
 {
-	int copied = strscpy(entry->value, in, len);
-	if (copied > 0)
-		memset(entry->value, copied, len - copied);
+	int copied;
+
+	copied = strscpy((char *)&entry->value, in, len);
+	if (copied > 0 && (copied + 1) < len)
+		memset((entry->value + copied + 1), 0, len - copied - 1);
 }
 
 /**
-- 
2.26.2


  parent reply	other threads:[~2021-06-01 17:23 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-01 17:21 [PATCH 0/2] scsi: FDMI Fixes Javed Hasan
2021-06-01 17:21 ` [PATCH 1/2] scsi: fc: Corrected RHBA attributes length Javed Hasan
2021-06-01 17:52   ` Himanshu Madhani
2021-06-01 18:07     ` Himanshu Madhani
2021-06-02  6:01       ` [EXT] " Javed Hasan
2021-06-02 13:35         ` [EXT] " Himanshu Madhani
2021-06-01 17:21 ` Javed Hasan [this message]
2021-06-01 18:00   ` [PATCH 2/2] libfc: Corrected the condition check and invalid argument passed Himanshu Madhani
2021-06-03  9:56 [PATCH 0/2] scsi: FDMI Fixes Javed Hasan
2021-06-03  9:56 ` [PATCH 2/2] libfc: Corrected the condition check and invalid argument passed Javed Hasan

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