diff options
| author | Yuan Mu <Ymu@winbond.com.tw> | 2005-11-23 15:44:21 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2005-11-23 23:04:26 -0800 |
| commit | 2723ab91cb4019def10bdb01b0fecb85e6ac7884 (patch) | |
| tree | 753a9a0096bb1e41d79e5ef58370d7cfa8152228 /drivers/hwmon | |
| parent | 1adc123079207bf9ba5bcf3dbf52bcdb22f82c7c (diff) | |
| download | lwn-2723ab91cb4019def10bdb01b0fecb85e6ac7884.tar.gz lwn-2723ab91cb4019def10bdb01b0fecb85e6ac7884.zip | |
[PATCH] hwmon: Fix missing boundary check when setting W83627THF in0 limits
Add SENSORS_LIMIT in store VCore limit functions. This fixes a potential
u8 overflow on out-of-range user input.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/hwmon')
| -rw-r--r-- | drivers/hwmon/w83627hf.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/hwmon/w83627hf.c b/drivers/hwmon/w83627hf.c index 4e9a04e1f08e..bbb3dcde146b 100644 --- a/drivers/hwmon/w83627hf.c +++ b/drivers/hwmon/w83627hf.c @@ -456,7 +456,9 @@ static ssize_t store_regs_in_min0(struct device *dev, struct device_attribute *a (w83627thf == data->type || w83637hf == data->type)) /* use VRM9 calculation */ - data->in_min[0] = (u8)(((val * 100) - 70000 + 244) / 488); + data->in_min[0] = + SENSORS_LIMIT(((val * 100) - 70000 + 244) / 488, 0, + 255); else /* use VRM8 (standard) calculation */ data->in_min[0] = IN_TO_REG(val); @@ -481,7 +483,9 @@ static ssize_t store_regs_in_max0(struct device *dev, struct device_attribute *a (w83627thf == data->type || w83637hf == data->type)) /* use VRM9 calculation */ - data->in_max[0] = (u8)(((val * 100) - 70000 + 244) / 488); + data->in_max[0] = + SENSORS_LIMIT(((val * 100) - 70000 + 244) / 488, 0, + 255); else /* use VRM8 (standard) calculation */ data->in_max[0] = IN_TO_REG(val); |