net: ieee802154: adf7242: Fix some potential buffer overflow in adf7242_stats_show()

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[ Upstream commit ca082f019d ]

strncat() usage in adf7242_debugfs_init() is wrong.
The size given to strncat() is the maximum number of bytes that can be
written, excluding the trailing NULL.

Here, the size that is passed, DNAME_INLINE_LEN, does not take into account
the size of "adf7242-" that is already in the array.

In order to fix it, use snprintf() instead.

Fixes: 7302b9d901 ("ieee802154/adf7242: Driver for ADF7242 MAC IEEE802154")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>

...

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Christophe JAILLET 2023-10-21 20:03:53 +02:00 • committed by Greg Kroah-Hartman

parent 55b01c5a84

commit 7c799bc322

1 changed files with 3 additions and 2 deletions

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drivers/net/ieee802154/adf7242.c

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