mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-09-25 11:55:37 +00:00
regulator: pfuze100: Fix the global-out-of-bounds access in pfuze100_regulator_probe()
[ Upstream commit 78e1e867f4
]
The pfuze_chip::regulator_descs is an array of size
PFUZE100_MAX_REGULATOR, the pfuze_chip::pfuze_regulators
is the pointer to the real regulators of a specific device.
The number of real regulator is supposed to be less than
the PFUZE100_MAX_REGULATOR, so we should use the size of
'regulator_num * sizeof(struct pfuze_regulator)' in memcpy().
This fixes the out of bounds access bug reported by KASAN.
Signed-off-by: Xiaolei Wang <xiaolei.wang@windriver.com>
Link: https://lore.kernel.org/r/20220825111922.1368055-1-xiaolei.wang@windriver.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
parent
2161c2571c
commit
8f4ef1ee2f
1 changed files with 1 additions and 1 deletions
|
@ -614,7 +614,7 @@ static int pfuze100_regulator_probe(struct i2c_client *client,
|
|||
((pfuze_chip->chip_id == PFUZE200) ? "200" : "3000"));
|
||||
|
||||
memcpy(pfuze_chip->regulator_descs, pfuze_chip->pfuze_regulators,
|
||||
sizeof(pfuze_chip->regulator_descs));
|
||||
regulator_num * sizeof(struct pfuze_regulator));
|
||||
|
||||
ret = pfuze_parse_regulators_dt(pfuze_chip);
|
||||
if (ret)
|
||||
|
|
Loading…
Reference in a new issue