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video: uvesafb: Use scnprintf() for avoiding potential buffer overflow
authorTakashi Iwai <tiwai@suse.de>
Wed, 11 Mar 2020 09:32:30 +0000 (10:32 +0100)
committerBartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Fri, 20 Mar 2020 13:29:06 +0000 (14:29 +0100)
commit06b522d6de9d7b429f368210c93d5414ead3586b
treee162424fbc35658a9f35d6db9838873ef4b339bctree
parent42f21e5452a24d205dcc029be4075b8be07f2ac0commit | diff
video: uvesafb: 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().

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200311093230.24900-4-tiwai@suse.de
drivers/video/fbdev/uvesafb.c diff | blob | history
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