diff options
| author | Richard Yao <[email protected]> | 2015-07-03 12:20:17 -0400 |
|---|---|---|
| committer | Brian Behlendorf <[email protected]> | 2015-07-14 10:20:35 -0700 |
| commit | 0de7c552b69f2bb3e16f023007f049cb3c8e9afd (patch) | |
| tree | 08beaa1d0901b761ce3ed2d1e5e44413f22a4d46 /module | |
| parent | b39c22b73c0e8016381057c2240570f7af992def (diff) | |
Failure of userland copy should return EFAULT
Many key internal functions pass system return codes that are safe to
return to userland. In the case of ddi_copyin(9F), an error passes -1
and the documentation states very clearly that drivers should pass
EFAULT to userland when this happens.
http://illumos.org/man/9F/ddi_copyin
This does not happen in the ZFS source code. I believe it should be
changed to pass EFAULT. I caught this when writing man pages for the
libzfs_core API.
Signed-off-by: Richard Yao <[email protected]>
Signed-off-by: Brian Behlendorf <[email protected]>
Closes #3575
Diffstat (limited to 'module')
| -rw-r--r-- | module/zfs/zfs_ioctl.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/module/zfs/zfs_ioctl.c b/module/zfs/zfs_ioctl.c index d997616ae..a7bfecea6 100644 --- a/module/zfs/zfs_ioctl.c +++ b/module/zfs/zfs_ioctl.c @@ -1334,7 +1334,7 @@ get_nvlist(uint64_t nvl, uint64_t size, int iflag, nvlist_t **nvp) if ((error = ddi_copyin((void *)(uintptr_t)nvl, packed, size, iflag)) != 0) { vmem_free(packed, size); - return (error); + return (SET_ERROR(EFAULT)); } if ((error = nvlist_unpack(packed, size, &list, 0)) != 0) { |