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| author | Eric Farman <farman@linux.ibm.com> | 2021-03-01 19:33:24 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-03-17 16:43:45 +0100 |
| commit | 49f3cfae0cf708578b6d9f343d139618fcdaa9b9 (patch) | |
| tree | fecd20a9543b0123eaf769f99300adb470a7523b | |
| parent | 8fbbf2b3849419e31731902d7478b0c934732632 (diff) | |
| download | linux-stable-49f3cfae0cf708578b6d9f343d139618fcdaa9b9.tar.gz linux-stable-49f3cfae0cf708578b6d9f343d139618fcdaa9b9.tar.bz2 linux-stable-49f3cfae0cf708578b6d9f343d139618fcdaa9b9.zip | |
s390/cio: return -EFAULT if copy_to_user() fails
commit d9c48a948d29bcb22f4fe61a81b718ef6de561a0 upstream.
Fixes: 120e214e504f ("vfio: ccw: realize VFIO_DEVICE_G(S)ET_IRQ_INFO ioctls")
Signed-off-by: Eric Farman <farman@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/s390/cio/vfio_ccw_ops.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/s390/cio/vfio_ccw_ops.c b/drivers/s390/cio/vfio_ccw_ops.c index a7056c2322e0..6873ab5fe57a 100644 --- a/drivers/s390/cio/vfio_ccw_ops.c +++ b/drivers/s390/cio/vfio_ccw_ops.c @@ -383,7 +383,7 @@ static ssize_t vfio_ccw_mdev_ioctl(struct mdev_device *mdev, if (info.count == -1) return -EINVAL; - return copy_to_user((void __user *)arg, &info, minsz); + return copy_to_user((void __user *)arg, &info, minsz) ? -EFAULT : 0; } case VFIO_DEVICE_SET_IRQS: { |