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can: sja1000: force the string buffer NULL-terminated

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[ Upstream commit cd28aa2e056cd1ea79fc5f24eed0ce868c6cab5c ]

strncpy() does not ensure NULL-termination when the input string size
equals to the destination buffer size IFNAMSIZ. The output string
'name' is passed to dev_info which relies on NULL-termination.

Use strlcpy() instead.

This issue is identified by a Coccinelle script.

Signed-off-by: Wang Xiayang <xywang.sjtu@sjtu.edu.cn>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Wang Xiayang 2019-07-31 15:31:14 +08:00 committed by Greg Kroah-Hartman
parent 6d349ff827
commit 02c2a3118e
1 changed files with 1 additions and 1 deletions
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2
drivers/net/can/sja1000/peak_pcmcia.c
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@ -487,7 +487,7 @@ static void pcan_free_channels(struct pcan_pccard *card)
if (!netdev)
continue;
strncpy(name, netdev->name, IFNAMSIZ);
strlcpy(name, netdev->name, IFNAMSIZ);
unregister_sja1000dev(netdev);