diff options
| author | Iván Ezequiel Rodriguez <ivanrwcm25@gmail.com> | 2026-07-23 15:12:59 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2026-07-31 14:15:54 +0200 |
| commit | 61611481f7b599e0526a3782c626b1a9deeb48bd (patch) | |
| tree | be60a668fce2f66c5729ac6f92448b46270cb64a | |
| parent | 1d076f7524b57e7db32aeac68009c72653cb3d1f (diff) | |
ntsync: reject wait ioctls with zero owner
setup_wait() already validates pad and flags but not owner, while
Documentation/userspace-api/ntsync.rst requires EINVAL when owner is
zero. Reject early before queueing waiters.
Signed-off-by: Iván Ezequiel Rodriguez <ivanrwcm25@gmail.com>
Signed-off-by: Griffin Kroah-Hartman <griffin@kroah.com>
Reviewed-by: Elizabeth Figura <zfigura@codeweavers.com>
Signed-off-by: Elizabeth Figura <zfigura@codeweavers.com>
Link: https://patch.msgid.link/20260723201301.11826-4-zfigura@codeweavers.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/misc/ntsync.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/misc/ntsync.c b/drivers/misc/ntsync.c index 02c9d1192812..4a805919bb0c 100644 --- a/drivers/misc/ntsync.c +++ b/drivers/misc/ntsync.c @@ -875,6 +875,9 @@ static int setup_wait(struct ntsync_device *dev, if (args->pad || (args->flags & ~NTSYNC_WAIT_REALTIME)) return -EINVAL; + if (!args->owner) + return -EINVAL; + if (size >= sizeof(fds)) return -EINVAL; |