linux/drivers/video/fbdev, branch v5.14

Merge tag 'drm-fixes-2021-07-16' of git://anongit.freedesktop.org/drm/drm

2021-07-16T18:14:54Z

Pull drm fixes from Dave Airlie: "Regular rc2 fixes though a bit more than usual at rc2 stage, people must have been testing early or else some fixes from last week got a bit laggy. There is one larger change in the amd fixes to amalgamate some power management code on the newer chips with the code from the older chips, it should only affects chips where support was introduced in rc1 and it should make future fixes easier to maintain probably a good idea to merge it now. Otherwise it's mostly fixes across the board. dma-buf: - Fix fence leak in sync_file_merge() error code drm/panel: - nt35510: Don't fail on DSI reads fbdev: - Avoid use-after-free by not deleting current video mode ttm: - Avoid NULL-ptr deref in ttm_range_man_fini() vmwgfx: - Fix a merge commit qxl: - fix a TTM regression amdgpu: - SR-IOV fixes - RAS fixes - eDP fixes - SMU13 code unification to facilitate fixes in the future - Add new renoir DID - Yellow Carp fixes - Beige Goby fixes - Revert a bunch of TLB fixes that caused regressions - Revert an LTTPR display regression amdkfd - Fix VRAM access regression - SVM fixes i915: - Fix -EDEADLK handling regression - Drop the page table optimisation" * tag 'drm-fixes-2021-07-16' of git://anongit.freedesktop.org/drm/drm: (29 commits) drm/amdgpu: add another Renoir DID drm/ttm: add a check against null pointer dereference drm/i915/gtt: drop the page table optimisation drm/i915/gt: Fix -EDEADLK handling regression drm/amd/pm: Add waiting for response of mode-reset message for yellow carp Revert "drm/amdkfd: Add heavy-weight TLB flush after unmapping" Revert "drm/amdgpu: Add table_freed parameter to amdgpu_vm_bo_update" Revert "drm/amdkfd: Make TLB flush conditional on mapping" Revert "drm/amdgpu: Fix warning of Function parameter or member not described" Revert "drm/amdkfd: Add memory sync before TLB flush on unmap" drm/amd/pm: Fix BACO state setting for Beige_Goby drm/amdgpu: Restore msix after FLR drm/amdkfd: Allow CPU access for all VRAM BOs drm/amdgpu/display - only update eDP's backlight level when necessary drm/amdkfd: handle fault counters on invalid address drm/amdgpu: Correct the irq numbers for virtual crtc drm/amd/display: update header file name drm/amd/pm: drop smu_v13_0_1.c|h files for yellow carp drm/amd/display: remove faulty assert Revert "drm/amd/display: Always write repeater mode regardless of LTTPR" ...

video: fbdev: Fix fall-through warning for Clang

2021-07-13T18:58:29Z

Fix the following fallthrough warning (arm64-randconfig with Clang): drivers/video/fbdev/xilinxfb.c:244:2: warning: unannotated fall-through between switch labels [-Wimplicit-fallthrough] Reported-by: kernel test robot Link: https://lore.kernel.org/lkml/60edca25.k00ut905IFBjPyt5%25lkp@intel.com/ Signed-off-by: Gustavo A. R. Silva

fbmem: Do not delete the mode that is still in use

2021-07-13T15:01:38Z

The execution of fb_delete_videomode() is not based on the result of the previous fbcon_mode_deleted(). As a result, the mode is directly deleted, regardless of whether it is still in use, which may cause UAF. ================================================================== BUG: KASAN: use-after-free in fb_mode_is_equal+0x36e/0x5e0 \ drivers/video/fbdev/core/modedb.c:924 Read of size 4 at addr ffff88807e0ddb1c by task syz-executor.0/18962 CPU: 2 PID: 18962 Comm: syz-executor.0 Not tainted 5.10.45-rc1+ #3 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS ... Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x137/0x1be lib/dump_stack.c:118 print_address_description+0x6c/0x640 mm/kasan/report.c:385 __kasan_report mm/kasan/report.c:545 [inline] kasan_report+0x13d/0x1e0 mm/kasan/report.c:562 fb_mode_is_equal+0x36e/0x5e0 drivers/video/fbdev/core/modedb.c:924 fbcon_mode_deleted+0x16a/0x220 drivers/video/fbdev/core/fbcon.c:2746 fb_set_var+0x1e1/0xdb0 drivers/video/fbdev/core/fbmem.c:975 do_fb_ioctl+0x4d9/0x6e0 drivers/video/fbdev/core/fbmem.c:1108 vfs_ioctl fs/ioctl.c:48 [inline] __do_sys_ioctl fs/ioctl.c:753 [inline] __se_sys_ioctl+0xfb/0x170 fs/ioctl.c:739 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 Freed by task 18960: kasan_save_stack mm/kasan/common.c:48 [inline] kasan_set_track+0x3d/0x70 mm/kasan/common.c:56 kasan_set_free_info+0x17/0x30 mm/kasan/generic.c:355 __kasan_slab_free+0x108/0x140 mm/kasan/common.c:422 slab_free_hook mm/slub.c:1541 [inline] slab_free_freelist_hook+0xd6/0x1a0 mm/slub.c:1574 slab_free mm/slub.c:3139 [inline] kfree+0xca/0x3d0 mm/slub.c:4121 fb_delete_videomode+0x56a/0x820 drivers/video/fbdev/core/modedb.c:1104 fb_set_var+0x1f3/0xdb0 drivers/video/fbdev/core/fbmem.c:978 do_fb_ioctl+0x4d9/0x6e0 drivers/video/fbdev/core/fbmem.c:1108 vfs_ioctl fs/ioctl.c:48 [inline] __do_sys_ioctl fs/ioctl.c:753 [inline] __se_sys_ioctl+0xfb/0x170 fs/ioctl.c:739 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 Fixes: 13ff178ccd6d ("fbcon: Call fbcon_mode_deleted/new_modelist directly") Signed-off-by: Zhen Lei Cc: # v5.3+ Signed-off-by: Daniel Vetter Link: https://patchwork.freedesktop.org/patch/msgid/20210712085544.2828-1-thunder.leizhen@huawei.com

Merge tag 'char-misc-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

2021-07-05T20:42:16Z

Pull char / misc driver updates from Greg KH: "Here is the big set of char / misc and other driver subsystem updates for 5.14-rc1. Included in here are: - habanalabs driver updates - fsl-mc driver updates - comedi driver updates - fpga driver updates - extcon driver updates - interconnect driver updates - mei driver updates - nvmem driver updates - phy driver updates - pnp driver updates - soundwire driver updates - lots of other tiny driver updates for char and misc drivers This is looking more and more like the "various driver subsystems mushed together" tree... All of these have been in linux-next for a while with no reported issues" * tag 'char-misc-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (292 commits) mcb: Use DEFINE_RES_MEM() helper macro and fix the end address PNP: moved EXPORT_SYMBOL so that it immediately followed its function/variable bus: mhi: pci-generic: Add missing 'pci_disable_pcie_error_reporting()' calls bus: mhi: Wait for M2 state during system resume bus: mhi: core: Fix power down latency intel_th: Wait until port is in reset before programming it intel_th: msu: Make contiguous buffers uncached intel_th: Remove an unused exit point from intel_th_remove() stm class: Spelling fix nitro_enclaves: Set Bus Master for the NE PCI device misc: ibmasm: Modify matricies to matrices misc: vmw_vmci: return the correct errno code siox: Simplify error handling via dev_err_probe() fpga: machxo2-spi: Address warning about unused variable lkdtm/heap: Add init_on_alloc tests selftests/lkdtm: Enable various testable CONFIGs lkdtm: Add CONFIG hints in errors where possible lkdtm: Enable DOUBLE_FAULT on all architectures lkdtm/heap: Add vmalloc linear overflow test lkdtm/bugs: XFAIL UNALIGNED_LOAD_STORE_WRITE ...

Merge branch 'akpm' (patches from Andrew)

2021-07-02T19:08:10Z

Merge more updates from Andrew Morton: "190 patches. Subsystems affected by this patch series: mm (hugetlb, userfaultfd, vmscan, kconfig, proc, z3fold, zbud, ras, mempolicy, memblock, migration, thp, nommu, kconfig, madvise, memory-hotplug, zswap, zsmalloc, zram, cleanups, kfence, and hmm), procfs, sysctl, misc, core-kernel, lib, lz4, checkpatch, init, kprobes, nilfs2, hfs, signals, exec, kcov, selftests, compress/decompress, and ipc" * emailed patches from Andrew Morton : (190 commits) ipc/util.c: use binary search for max_idx ipc/sem.c: use READ_ONCE()/WRITE_ONCE() for use_global_lock ipc: use kmalloc for msg_queue and shmid_kernel ipc sem: use kvmalloc for sem_undo allocation lib/decompressors: remove set but not used variabled 'level' selftests/vm/pkeys: exercise x86 XSAVE init state selftests/vm/pkeys: refill shadow register after implicit kernel write selftests/vm/pkeys: handle negative sys_pkey_alloc() return code selftests/vm/pkeys: fix alloc_random_pkey() to make it really, really random kcov: add __no_sanitize_coverage to fix noinstr for all architectures exec: remove checks in __register_bimfmt() x86: signal: don't do sas_ss_reset() until we are certain that sigframe won't be abandoned hfsplus: report create_date to kstat.btime hfsplus: remove unnecessary oom message nilfs2: remove redundant continue statement in a while-loop kprobes: remove duplicated strong free_insn_page in x86 and s390 init: print out unknown kernel parameters checkpatch: do not complain about positive return values starting with EPOLL checkpatch: improve the indented label test checkpatch: scripts/spdxcheck.py now requires python3 ...

kernel.h: split out panic and oops helpers

2021-07-01T18:06:04Z

kernel.h is being used as a dump for all kinds of stuff for a long time. Here is the attempt to start cleaning it up by splitting out panic and oops helpers. There are several purposes of doing this: - dropping dependency in bug.h - dropping a loop by moving out panic_notifier.h - unload kernel.h from something which has its own domain At the same time convert users tree-wide to use new headers, although for the time being include new header back to kernel.h to avoid twisted indirected includes for existing users. [akpm@linux-foundation.org: thread_info.h needs limits.h] [andriy.shevchenko@linux.intel.com: ia64 fix] Link: https://lkml.kernel.org/r/20210520130557.55277-1-andriy.shevchenko@linux.intel.com Link: https://lkml.kernel.org/r/20210511074137.33666-1-andriy.shevchenko@linux.intel.com Signed-off-by: Andy Shevchenko Reviewed-by: Bjorn Andersson Co-developed-by: Andrew Morton Acked-by: Mike Rapoport Acked-by: Corey Minyard Acked-by: Christian Brauner Acked-by: Arnd Bergmann Acked-by: Kees Cook Acked-by: Wei Liu Acked-by: Rasmus Villemoes Signed-off-by: Andrew Morton Acked-by: Sebastian Reichel Acked-by: Luis Chamberlain Acked-by: Stephen Boyd Acked-by: Thomas Bogendoerfer Acked-by: Helge Deller # parisc Signed-off-by: Linus Torvalds

Backmerge tag 'v5.13-rc7' into drm-next

2021-06-23T00:07:48Z

Backmerge Linux 5.13-rc7 to make some pulls from later bases apply, and to bake in the conflicts so far.

Merge tag 'v5.13-rc6' into char-misc-next

2021-06-14T06:59:06Z

We need the fixes in here as well. Signed-off-by: Greg Kroah-Hartman

video: fbdev: mb862xx: use DEVICE_ATTR_RO macro

2021-06-03T08:32:49Z

Use DEVICE_ATTR_RO helper instead of plain DEVICE_ATTR, which makes the code a bit shorter and easier to read. Signed-off-by: Zhen Lei Signed-off-by: Daniel Vetter Link: https://patchwork.freedesktop.org/patch/msgid/20210601090852.10531-1-thunder.leizhen@huawei.com

video: fbdev: atyfb: mach64_cursor.c: deleted the repeated word

2021-06-03T08:32:49Z

deleted the repeated word 'be' in the comments. Signed-off-by: lijian Signed-off-by: Daniel Vetter Link: https://patchwork.freedesktop.org/patch/msgid/20210601012747.38884-1-lijian_8010a29@163.com