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| author | Vasiliy Kulikov <segoon@openwall.com> | 2010-11-19 21:41:58 +0300 |
|---|---|---|
| committer | Anton Vorontsov <cbouatmailru@gmail.com> | 2010-12-22 02:39:55 +0300 |
| commit | 3a2dbd611b38cf9a026c0099a85701ad183d1949 (patch) | |
| tree | b6d181ab33effdcd0e0466ee583c0e224563e372 | |
| parent | 26eb387265872b59566ddeed5e9bf142a6b9ff5b (diff) | |
| download | linux-3a2dbd611b38cf9a026c0099a85701ad183d1949.tar.bz2 | |
power_supply: Fix use after free and memory leak
device_unregister() might free its argument. This leads to freed
memory use in kfree(). Also use put_device() instead of kfree()
as dev may be already used in another layer after call to device_add().
Signed-off-by: Vasiliy Kulikov <segoon@openwall.com>
Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
| -rw-r--r-- | drivers/power/power_supply_core.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/power/power_supply_core.c b/drivers/power/power_supply_core.c index 91606bb55318..f06bad047d76 100644 --- a/drivers/power/power_supply_core.c +++ b/drivers/power/power_supply_core.c @@ -190,10 +190,10 @@ int power_supply_register(struct device *parent, struct power_supply *psy) goto success; create_triggers_failed: - device_unregister(psy->dev); + device_del(dev); kobject_set_name_failed: device_add_failed: - kfree(dev); + put_device(dev); success: return rc; } |