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fbdev: - revert NULL deref fix that turned into a use-after-free - prevent use-after-free in fbdev - efifb/simplefb/vesafb: fix cleanup paths to avoid use-after-frees dma-buf: - fix panic in stats setup vc4: - fix hdmi build nouveau: - tegra iommu present fix - fix leak in backlight name vmwgfx: - Black screen due to fences using FIFO checks on SVGA3 - Random black screens on boot due to uninitialized drm_mode_fb_cmd2 - Hangs on SVGA3 due to command buffers being used with gbobjects -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEEKbZHaGwW9KfbeusDHTzWXnEhr4FAmJ+37oACgkQDHTzWXnE hr4ctRAAn4ew42dIcIySrU5OdXnSKkT3172SqI02w84lT3vTNFgfr7PMyeP0DGg6 64l1OHl/NpGXA53UaUJ/uLIp/qctg56YOUeQYj1OiAilqmmauHJlBgZF4czDl88W gmz4LLdM8E0UP10LVDe60xqXIr6WEFxUlv1E6gu4Y9vv7EKTDtRsfBOvrkvPQKOJ v6Y6iyulWQAk1KdiCxuKnQxA8/Pvk1bgE+gNdemX8ebwSr8i0UMi+JfpBxSeQXVw Ot4AW9zWu1gDYden9D+zQTfcCEIrfDKyEHOz3+JHQXHUrW3HsYlCH/PfDCH0pS6w fKjOGDVhmnU5oAElKzz1ipDVP+x2b8T9lXXWkI8TMQyk5NIgdBwO8nz1vPRgcyQJ aoORiurmONxv7Hacf3xq1+4iLrkCnUFfDmDSYC1fKjomgcinBkvBjjAgGPZQ/rv0 cL0FAE+SQC1agku6PoWur5C5QZWBEnrSkFBBjEJRmdM26HoPJVvvzwh/MaT2vvhd gk8iBijA3jKR+Oummv0IypsOblU8rNfl6kr4s1nxnOUDYvly+942MPw3yNXfHRmh Vi7s2AeRcJzrsy0+gmCr62+cH00/cHPHfMde9c1r6ekVp+TCA2/nkUgt8WQf2PIq OG5jvIqdNVGqDNXexS1kfrRB9KMXf/T83h/brqFDuMk5JhPlub8= =wF/s -----END PGP SIGNATURE----- Merge tag 'drm-fixes-2022-05-14' of git://anongit.freedesktop.org/drm/drm Pull more drm fixes from Dave Airlie: "Turns out I was right, some fixes hadn't made it to me yet. The vmwgfx ones also popped up later, but all seem like bad enough things to fix. The dma-buf, vc4 and nouveau ones are all pretty small. The fbdev fixes are a bit more complicated: a fix to cleanup fbdev devices properly, uncovered some use-after-free bugs in existing drivers. Then the fix for those bugs wasn't correct. This reverts that fix, and puts the proper fixes in place in the drivers to avoid the use-after-frees. This has had a fair number of eyes on it at this stage, and I'm confident enough that it puts things in the right place, and is less dangerous than reverting our way out of the initial change at this stage. fbdev: - revert NULL deref fix that turned into a use-after-free - prevent use-after-free in fbdev - efifb/simplefb/vesafb: fix cleanup paths to avoid use-after-frees dma-buf: - fix panic in stats setup vc4: - fix hdmi build nouveau: - tegra iommu present fix - fix leak in backlight name vmwgfx: - Black screen due to fences using FIFO checks on SVGA3 - Random black screens on boot due to uninitialized drm_mode_fb_cmd2 - Hangs on SVGA3 due to command buffers being used with gbobjects" * tag 'drm-fixes-2022-05-14' of git://anongit.freedesktop.org/drm/drm: drm/vmwgfx: Disable command buffers on svga3 without gbobjects drm/vmwgfx: Initialize drm_mode_fb_cmd2 drm/vmwgfx: Fix fencing on SVGAv3 drm/vc4: hdmi: Fix build error for implicit function declaration dma-buf: call dma_buf_stats_setup after dmabuf is in valid list fbdev: efifb: Fix a use-after-free due early fb_info cleanup drm/nouveau: Fix a potential theorical leak in nouveau_get_backlight_name() drm/nouveau/tegra: Stop using iommu_present() fbdev: vesafb: Cleanup fb_info in .fb_destroy rather than .remove fbdev: efifb: Cleanup fb_info in .fb_destroy rather than .remove fbdev: simplefb: Cleanup fb_info in .fb_destroy rather than .remove fbdev: Prevent possible use-after-free in fb_release() Revert "fbdev: Make fb_release() return -ENODEV if fbdev was unregistered"
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 Restructured Text 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.