From: Kunwu Chan <chentao@kylinos.cn>
To: jesse.brandeburg@intel.com, anthony.l.nguyen@intel.com,
davem@davemloft.net, edumazet@google.com, kuba@kernel.org,
pabeni@redhat.com
Cc: jacob.e.keller@intel.com, przemyslaw.kitszel@intel.com,
intel-wired-lan@lists.osuosl.org, netdev@vger.kernel.org,
linux-kernel@vger.kernel.org, Kunwu Chan <chentao@kylinos.cn>,
Kunwu Chan <kunwu.chan@hotmail.com>
Subject: [PATCH] igb: Add null pointer check to igb_set_fw_version
Date: Mon, 11 Dec 2023 11:13:36 +0800 [thread overview]
Message-ID: <20231211031336.235634-1-chentao@kylinos.cn> (raw)
kasprintf() returns a pointer to dynamically allocated memory
which can be NULL upon failure.
Fixes: 1978d3ead82c ("intel: fix string truncation warnings")
Cc: Kunwu Chan <kunwu.chan@hotmail.com>
Signed-off-by: Kunwu Chan <chentao@kylinos.cn>
---
drivers/net/ethernet/intel/igb/igb_main.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c
index b2295caa2f0a..6838f6fccb80 100644
--- a/drivers/net/ethernet/intel/igb/igb_main.c
+++ b/drivers/net/ethernet/intel/igb/igb_main.c
@@ -3102,6 +3102,8 @@ void igb_set_fw_version(struct igb_adapter *adapter)
break;
}
+ if (!lbuf)
+ return;
/* the truncate happens here if it doesn't fit */
strscpy(adapter->fw_version, lbuf, sizeof(adapter->fw_version));
kfree(lbuf);
--
2.39.2
next reply other threads:[~2023-12-11 3:13 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-12-11 3:13 Kunwu Chan [this message]
2023-12-12 21:26 ` Jakub Kicinski
2023-12-14 2:44 ` Kunwu Chan
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