b43legacy: Use scnprintf() for avoiding potential buffer overflow
authorTakashi Iwai <tiwai@suse.de>
Wed, 11 Mar 2020 08:47:11 +0000 (09:47 +0100)
committerKalle Valo <kvalo@codeaurora.org>
Thu, 12 Mar 2020 13:43:39 +0000 (15:43 +0200)
commitd3f8c708c0d7c8b2b2bc5d3ba5c7d8a5a0af5f2b
treecac569289ea1fa0570650fbde6d79e6fc064bf44
parent68b02e0c512b3cd8dc18877d5fbe259687bccaec
b43legacy: Use scnprintf() for avoiding potential buffer overflow

Since snprintf() returns the would-be-output size instead of the
actual output size, the succeeding calls may go beyond the given
buffer limit.  Fix it by replacing with scnprintf().

Cc: Larry Finger <Larry.Finger@lwfinger.net>
Cc: b43-dev@lists.infradead.org
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
drivers/net/wireless/broadcom/b43legacy/debugfs.c