Arnd Bergmann e5478166df drm/nouveau: check ioctl command codes better
nouveau_drm_ioctl() only checks the _IOC_NR() bits in the
DRM_NOUVEAU_NVIF command, but ignores the type and direction bits, so any
command with '7' in the low eight bits gets passed into
nouveau_abi16_ioctl() instead of drm_ioctl().

Check for all the bits except the size that is handled inside of the
handler.

Fixes: 27111a23d0 ("drm/nouveau: expose the full object/event interfaces to userspace")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
[ Fix up two checkpatch warnings and a typo. - Danilo ]
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
Link: https://lore.kernel.org/r/20250711072458.2665325-1-arnd@kernel.org
2025-07-11 20:04:32 +02:00
2022-09-28 09:02:20 +02:00
2025-02-19 14:53:27 -07:00
2025-06-08 13:44:43 -07:00
2024-03-18 03:36:32 -06:00

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.
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