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(parent: 2c523b3) | patch
ACPI: fan: Use scnprintf() for avoiding potential buffer overflow
authorTakashi Iwai <tiwai@suse.de>
Wed, 11 Mar 2020 07:08:51 +0000 (08:08 +0100)
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>
Sat, 14 Mar 2020 10:11:58 +0000 (11:11 +0100)
commit949fe25f2ad31f72572dcad491843d355dc93b32
treed470bf82984c147f3480577862145fa2a63a080ftree | snapshot
parent2c523b344dfa65a3738e7039832044aa133c75fbcommit | diff
ACPI: fan: 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().

Also adjust the argument to really match with the actually remaining
buffer size.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
drivers/acpi/fan.c diff | blob | history
ep93xx device tree rework repo: git://git.maquefel.me/linux.git