s390/zcrypt: Use scnprintf() for avoiding potential buffer overflow

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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().

Message-Id: <20200311090915.21059-1-tiwai@suse.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Harald Freudenberger <freude@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>

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Takashi Iwai 2020-03-11 10:09:15 +01:00 • committed by Vasily Gorbik

parent 52aeda7acc

commit eb3e064b8d

1 changed files with 21 additions and 19 deletions

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drivers/s390/crypto/zcrypt_cex4.c

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