src-test2/sys/dev/drm, branch release/11.4.0

MFC r331333: Fix kernel memory disclosure in drm_infobufs

2018-03-23T02:37:08Z

drm_infobufs() has a structure on the stack, fills it out and copies it to userland. There are 2 elements in the struct that are not filled out and left uninitialized. This will leak uninitialized kernel stack data to userland. Submitted by: Domagoj Stolfa Reported by: Ilja Van Sprundel Security: Kernel memory disclosure (798)

MFC r331339: Correct signedness bug in drm_modeset_ctl

2018-03-23T02:33:30Z

drm_modeset_ctl() takes a signed in from userland, does a boundscheck, and then uses it to index into a structure and write to it. The boundscheck only checks upper bound, and never checks for nagative values. If the int coming from userland is negative [after conversion] it will bypass the boundscheck, perform a negative index into an array and write to it, causing memory corruption. Note that this is in the "old" drm driver; this issue does not exist in drm2. Reported by: Ilja Van Sprundel Reviewed by: cem Sponsored by: The FreeBSD Foundation

MFC r317055,r317056 (glebius): Include sys/vmmeter.h as included

2018-03-15T19:08:33Z

r317055: All these files need sys/vmmeter.h, but now they got it implicitly included via sys/pcpu.h. r317056: Typo!

MFC r327231,r327232:

2018-03-05T06:59:30Z

kernel: Fix several typos and minor errors lib: Fix several typos and minor errors - duplicate words - typos - references to old versions of FreeBSD

MFC r315281:

2017-03-28T06:07:59Z

Use atop() instead of OFF_TO_IDX() for convertion of addresses or addresses offsets, as intended. MFC r315580 (by alc): Simplify the logic for clipping the range returned by the pager to fit within the map entry. Use atop() rather than OFF_TO_IDX() on addresses.

sys/dev: minor spelling fixes.

2016-05-03T03:41:25Z

Most affect comments, very few have user-visible effects.

As is included from , there is no need

2016-02-22T09:04:36Z

to include it explicitly when is already included. Reviewed by: alc, kib Differential Revision: https://reviews.freebsd.org/D5378

As is included from , there is no need to

2016-02-22T09:02:20Z

include it explicitly when is already included. Reviewed by: alc, kib Differential Revision: https://reviews.freebsd.org/D5373

Instead of defining the actualy user and group id in the drmP.h files

2015-08-11T16:51:44Z

define GID_VIDEO in sys/conf.h, and use it together with UID_ROOT to define DRM_DEV_UID and DRM_DEV_GID in the drmP.h files. So there is one place where the UID's and GID's are defined. Submitted by: ed@ Reviewed by: ed@, dumbbell@ Differential Revision: https://reviews.freebsd.org/D3360

Add a new group named 'video' with the id of 44. And make drm create

2015-08-09T12:58:56Z

devices in /dev/dri/ with this new group. This will allow ports and users to more easily access to these devices for OpenGL and OpenCL support. Reviewed by: dumbbell@ Approved by: dumbbell@ Differential Revision: https://reviews.freebsd.org/D1260