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| author | Eric Farman <farman@linux.ibm.com> | 2021-03-01 21:33:24 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-03-17 18:34:30 +0300 |
| commit | ce8235bcf1f77d9a7d7467163d184062c64e3417 (patch) | |
| tree | 4d92cccecec5593d52323b09a2ca3393b8e90e4b /drivers/s390/cio | |
| parent | 8a5160cc8488776ddc48ea045860dab015f47390 (diff) | |
| download | linux-ce8235bcf1f77d9a7d7467163d184062c64e3417.tar.xz | |
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>
Diffstat (limited to 'drivers/s390/cio')
| -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 3222a6a45096..672362ee479c 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: { |