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| author | Dan Carpenter <error27@gmail.com> | 2011-05-26 10:49:16 +0200 |
|---|---|---|
| committer | Jiri Kosina <jkosina@suse.cz> | 2011-05-26 14:04:40 +0200 |
| commit | 5c699d7d3f94ee1dd934edea889b32f8279a4e65 (patch) | |
| tree | d46ed26c576ce7357c3d1efe0b63d6779687927f | |
| parent | HID: add quirk for HyperPen 10000U (diff) | |
| download | linux-5c699d7d3f94ee1dd934edea889b32f8279a4e65.tar.xz linux-5c699d7d3f94ee1dd934edea889b32f8279a4e65.zip | |
HID: hiddev: fix use after free in hiddev_release
There are a couple use after free bugs here.
Signed-off-by: Dan Carpenter <error27@gmail.com>
[jkosina@suse.cz: removed already fixed hunk]
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
| -rw-r--r-- | drivers/hid/usbhid/hiddev.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/hid/usbhid/hiddev.c b/drivers/hid/usbhid/hiddev.c index 4985f485932f..7c1188b53c3e 100644 --- a/drivers/hid/usbhid/hiddev.c +++ b/drivers/hid/usbhid/hiddev.c @@ -248,12 +248,15 @@ static int hiddev_release(struct inode * inode, struct file * file) usbhid_close(list->hiddev->hid); usbhid_put_power(list->hiddev->hid); } else { + mutex_unlock(&list->hiddev->existancelock); kfree(list->hiddev); + kfree(list); + return 0; } } - kfree(list); mutex_unlock(&list->hiddev->existancelock); + kfree(list); return 0; } |