- 01 Sep, 2022 4 commits
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https://gitlab.freedesktop.org/drm/msmDave Airlie authored
Fixes for v6.0 - Fix for inconsistent indenting in function msm_dsi_dphy_timing_calc_v3. This fixes a smatch warning reported by kbot - Fix to make eDP the first connector in the connected list. This was mainly done to address a screen corruption issue we were seeing on sc7280 boards which have eDP as the primary display. The corruption itself is from usermode but we decided to fix it this way because things work correct with the primary display as the first one for usermode - Fix to populate intf_cfg correctly before calling reset_intf_cfg(). Without this, the display pipeline is not torn down correctly for writeback - Specify the correct number of DSI regulators for SDM660. It should have been 1 but 2 was mentioned - Specify the correct number of DSI regulators for MSM8996. It should have been 3 but 2 was mentioned - Fix for removing DP_RECOVERED_CLOCK_OUT_EN bit for tps4 link training for DP. This was causing link training failures and hence no display for a specific DP to HDMI cable on chromebooks - Fix probe-deferral crash in gpu devfreq - Fix gpu debugfs deadlock Signed-off-by:
Dave Airlie <airlied@redhat.com> From: Rob Clark <robdclark@gmail.com> Link: https://patchwork.freedesktop.org/patch/msgid/CAF6AEGtuY=jd44itwTkLXVqhnoKgY0BswPTrxDTxCiPG3WbmLA@mail.gmail.com
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Dave Airlie authored
Merge tag 'amd-drm-fixes-6.0-2022-08-31' of https://gitlab.freedesktop.org/agd5f/linux into drm-fixes amd-drm-fixes-6.0-2022-08-31: amdgpu: - FRU error message fix - MES 11 updates - DCN 3.2.x fixes - DCN 3.1.4 fixes - Fix possible use after free in CS IOCTL - SMU 13.0.x fixes - Fix iolink reporting on devices with direct connections to CPU - GFX10 tap delay firmware fixes Signed-off-by:
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git://anongit.freedesktop.org/drm/drm-miscDave Airlie authored
Short summary of fixes pull: * dma-buf/dma-resv: Fence-handling fix Signed-off-by:
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Dave Airlie authored
Merge tag 'drm-intel-fixes-2022-08-26' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes - GVT fixes including fix for a CommetLake regression in mmio table and misc doc and typo fixes - Fix CCS handling (Matt) - Fix for guc requests after reset (Daniele) - Display DSI related fixes (Jani) - Display backlight related fixes (Arun, Jouni) Signed-off-by:
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- 31 Aug, 2022 1 commit
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Chengming Gui authored
Restrict the ucode loading check to avoid frontdoor loading error. Signed-off-by:
Chengming Gui <Jack.Gui@amd.com> Reviewed-by:
Hawking Zhang <Hawking.Zhang@amd.com> Signed-off-by:
Alex Deucher <alexander.deucher@amd.com>
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- 30 Aug, 2022 20 commits
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Hawking Zhang authored
Not all the gfx10 variants need to integrate global tap_delay and per se tap_delay firmwares Only init tap_delay ucode when it does include in rlc ucode binary so driver doesn't send a null buffer to psp for firmware loading Signed-off-by:
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Vladimir Stempen authored
[Why] On secondary display hotplug we switch primary stream from ODM2to1 to ODMBypass mode. Current logic will trigger disabling front end for this stream. [How] We need to check if prev_odm_pipe is equal to NULL in order to disable dangling planes in this scenario. Reviewed-by:
Ariel Bernstein <Eric.Bernstein@amd.com> Acked-by:
Brian Chang <Brian.Chang@amd.com> Signed-off-by:
Vladimir Stempen <vladimir.stempen@amd.com> Tested-by:
Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by:
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Ethan Wellenreiter authored
[WHY] Function wasn't returning false when it had a no stream [HOW] Made it return false when it had no stream. Reviewed-by:
Alvin Lee <Alvin.Lee2@amd.com> Acked-by:
Ethan Wellenreiter <Ethan.Wellenreiter@amd.com> Tested-by:
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Ethan Wellenreiter authored
[Why] Pipes get merged in preparation for SubVP but if they don't get used, and are in ODM or some other multi pipe config, it would calculate the voltage level with a viewport of just one pipe from when they were split resulting in too low of a voltage level. [How] Made it so that the viewport and other timing settings get rebuilt and re- initialized after the pipe merge, before calculating the voltage level so it would calculate it correctly. Reviewed-by:
Jun Lei <Jun.Lei@amd.com> Acked-by:
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Aurabindo Pillai authored
[Why&How] plane and stream variables used for cursor size allocation calculation were stale from previous iteration. Redo the iteration to find the correct cursor plane for the calculation. Reviewed-by:
Aurabindo Pillai <aurabindo.pillai@amd.com> Tested-by:
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Alex Sierra authored
[Why] Devices with CPU XGMI iolink do not support PCIe peer access. Signed-off-by:
Alex Sierra <alex.sierra@amd.com> Acked-by:
Felix Kuehling <Felix.Kuehling@amd.com> Signed-off-by:
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Evan Quan authored
To suppress the warning about version mismatch with the latest 78.54.0 PMFW. Signed-off-by:
Evan Quan <evan.quan@amd.com> Reviewed-by:
Kenneth Feng <kenneth.feng@amd.com> Signed-off-by:
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Evan Quan authored
For those SMU13.0.7 unsecure SKUs, the vbios carried pptable is ready to go. Use that one instead of hardcoded softpptable. Signed-off-by:
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Evan Quan authored
For some SMU13.0.0 SKUs, the vbios carried pptable is ready to go. Use that one instead of hardcoded softpptable. Signed-off-by:
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Charlene Liu authored
[why] fw version check was for release branch. for staging, it has a chance to enter wrong code path. Reviewed-by:
Hansen Dsouza <hansen.dsouza@amd.com> Acked-by:
Charlene Liu <Charlene.Liu@amd.com> Tested-by:
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Aurabindo Pillai authored
[Why&How] When calculating allocation for cursor size, get the real cursor through the HUBP instead of using the maximum cursor size for more optimal allocation Reviewed-by:
Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com> Acked-by:
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Aurabindo Pillai authored
[Why&How] When using a 4k monitor when cursor caching is not supported due to framebuffer being on an uncacheable address, enabling display refresh from MALL would trigger corruption if SS is enabled. Prevent entering SS if we are on the edge case and cursor caching is not possible. Do this only if cursor size larger than a 64x64@4bpp. Pull the cursor size calculation out of if condition since cursor address may not be set on all platforms Reviewed-by:
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Aurabindo Pillai authored
For calculating cursor size allocation, surface size was used, resulting in over allocation Reviewed-by:
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Leo Chen authored
[Why & How] Number of encoder is set to 4 but only 3 instances are created. Reviewed-by:
Leo Chen <sancchen@amd.com> Tested-by:
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Wang Fudong authored
[Why] DIG_FIFO_ERROR = 1 caused mst daisy chain 2nd monitor black. [How] We need to set dig fifo read start level = 7 before dig fifo reset during dig fifo enable according to hardware designer's suggestion. If it is zero, it will cause underflow or overflow and DIG_FIFO_ERROR = 1. Reviewed-by:
Aric Cyr <Aric.Cyr@amd.com> Acked-by:
Wang Fudong <Fudong.Wang@amd.com> Tested-by:
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YuBiao Wang authored
[Why] In amdgpu_cs_ioctl, amdgpu_job_free could be performed ealier if there is -ERESTARTSYS error. In this case, job->hw_fence could be not initialized yet. Putting hw_fence during amdgpu_job_free could lead to a use-after-free warning. [How] Check if drm_sched_job_init is performed before job_free by checking s_fence. v2: Check hw_fence.ops instead since it could be NULL if fence is not initialized. Reverse the condition since !=NULL check is discouraged in kernel. Signed-off-by:
YuBiao Wang <YuBiao.Wang@amd.com> Reviewed-by:
Andrey Grodzovsky <andrey.grodzovsky@amd.com> Signed-off-by:
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Duncan Ma authored
[Why] When ODM is enabled, H timing control register reset to 0. Div mode manual field get overwritten causing no display on certain modes for dcn314. [How] Use REG_UPDATE instead of REG_SET to set div_mode field. Reviewed-by:
Duncan Ma <duncan.ma@amd.com> Tested-by:
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George Shen authored
[Why] Each index in the DPSTREAMCLK_CNTL register phyiscally maps 1-to-1 with HPO stream encoder instance. On the other hand, each index in DTBCLK_P_CNTL physically maps 1-to-1 with OTG instance. Current DCN32 DPSTREAMCLK_CLK programing assumes that OTG instance always maps 1-to-1 with HPO stream encoder instance. This is not always guaranteed and can result in blackscreen. [How] Program the correct dpstreamclk instance with the correct dtbclk_p source. Reviewed-by:
George Shen <george.shen@amd.com> Tested-by:
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Graham Sider authored
New GFX11 MES FW adds the trap_en bit. For now hardcode to 1 (traps enabled). Signed-off-by:
Graham Sider <Graham.Sider@amd.com> Acked-by:
Harish Kasiviswanathan <Harish.Kasiviswanathan@amd.com> Signed-off-by:
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Guchun Chen authored
Below driver load error will be printed, not friendly to end user. amdgpu: ATOM BIOS: 113-D603GLXE-077 [drm] FRU: Failed to get size field [drm:amdgpu_fru_get_product_info [amdgpu]] *ERROR* Failed to read FRU Manufacturer, ret:-5 Signed-off-by:
Guchun Chen <guchun.chen@amd.com> Reviewed-by:
Kent Russell <kent.russell@amd.com> Signed-off-by:
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- 28 Aug, 2022 15 commits
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Linus Torvalds authored
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git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mmLinus Torvalds authored
Pull more hotfixes from Andrew Morton: "Seventeen hotfixes. Mostly memory management things. Ten patches are cc:stable, addressing pre-6.0 issues" * tag 'mm-hotfixes-stable-2022-08-28' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: .mailmap: update Luca Ceresoli's e-mail address mm/mprotect: only reference swap pfn page if type match squashfs: don't call kmalloc in decompressors mm/damon/dbgfs: avoid duplicate context directory creation mailmap: update email address for Colin King asm-generic: sections: refactor memory_intersects bootmem: remove the vmemmap pages from kmemleak in put_page_bootmem ocfs2: fix freeing uninitialized resource on ocfs2_dlm_shutdown Revert "memcg: cleanup racy sum avoidance code" mm/zsmalloc: do not attempt to free IS_ERR handle binder_alloc: add missing mmap_lock calls when using the VMA mm: re-allow pinning of zero pfns (again) vmcoreinfo: add kallsyms_num_syms symbol mailmap: update Guilherme G. Piccoli's email addresses writeback: avoid use-after-free after removing device shmem: update folio if shmem_replace_page() updates the page mm/hugetlb: avoid corrupting page->mapping in hugetlb_mcopy_atomic_pte
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Linus Torvalds authored
Pull bitmap fixes from Yury Norov: "Fix the reported issues, and implements the suggested improvements, for the version of the cpumask tests [1] that was merged with commit c41e8866 ("lib/test: introduce cpumask KUnit test suite"). These changes include fixes for the tests, and better alignment with the KUnit style guidelines" * tag 'bitmap-6.0-rc3' of github.com:/norov/linux: lib/cpumask_kunit: add tests file to MAINTAINERS lib/cpumask_kunit: log mask contents lib/test_cpumask: follow KUnit style guidelines lib/test_cpumask: fix cpu_possible_mask last test lib/test_cpumask: drop cpu_possible_mask full test
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Luca Ceresoli authored
My Bootlin address is preferred from now on. Link: https://lkml.kernel.org/r/20220826130515.3011951-1-luca.ceresoli@bootlin.comSigned-off-by:
Luca Ceresoli <luca.ceresoli@bootlin.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Atish Patra <atishp@atishpatra.org> Cc: Hans Verkuil <hverkuil-cisco@xs4all.nl> Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org>
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Peter Xu authored
Yu Zhao reported a bug after the commit "mm/swap: Add swp_offset_pfn() to fetch PFN from swap entry" added a check in swp_offset_pfn() for swap type [1]: kernel BUG at include/linux/swapops.h:117! CPU: 46 PID: 5245 Comm: EventManager_De Tainted: G S O L 6.0.0-dbg-DEV #2 RIP: 0010:pfn_swap_entry_to_page+0x72/0xf0 Code: c6 48 8b 36 48 83 fe ff 74 53 48 01 d1 48 83 c1 08 48 8b 09 f6 c1 01 75 7b 66 90 48 89 c1 48 8b 09 f6 c1 01 74 74 5d c3 eb 9e <0f> 0b 48 ba ff ff ff ff 03 00 00 00 eb ae a9 ff 0f 00 00 75 13 48 RSP: 0018:ffffa59e73fabb80 EFLAGS: 00010282 RAX: 00000000ffffffe8 RBX: 0c00000000000000 RCX: ffffcd5440000000 RDX: 1ffffffffff7a80a RSI: 0000000000000000 RDI: 0c0000000000042b RBP: ffffa59e73fabb80 R08: ffff9965ca6e8bb8 R09: 0000000000000000 R10: ffffffffa5a2f62d R11: 0000030b372e9fff R12: ffff997b79db5738 R13: 000000000000042b R14: 0c0000000000042b R15: 1ffffffffff7a80a FS: 00007f549d1bb700(0000) GS:ffff99d3cf680000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000440d035b3180 CR3: 0000002243176004 CR4: 00000000003706e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> change_pte_range+0x36e/0x880 change_p4d_range+0x2e8/0x670 change_protection_range+0x14e/0x2c0 mprotect_fixup+0x1ee/0x330 do_mprotect_pkey+0x34c/0x440 __x64_sys_mprotect+0x1d/0x30 It triggers because pfn_swap_entry_to_page() could be called upon e.g. a genuine swap entry. Fix it by only calling it when it's a write migration entry where the page* is used. [1] https://lore.kernel.org/lkml/CAOUHufaVC2Za-p8m0aiHw6YkheDcrO-C3wRGixwDS32VTS+k1w@mail.gmail.com/ Link: https://lkml.kernel.org/r/20220823221138.45602-1-peterx@redhat.com Fixes: 6c287605 ("mm: remember exclusively mapped anonymous pages with PG_anon_exclusive") Signed-off-by:
Peter Xu <peterx@redhat.com> Reported-by:
Yu Zhao <yuzhao@google.com> Tested-by:
David Hildenbrand <david@redhat.com> Cc: "Huang, Ying" <ying.huang@intel.com> Cc: <stable@vger.kernel.org> Signed-off-by:
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Phillip Lougher authored
The decompressors may be called while in an atomic section. So move the kmalloc() out of this path, and into the "page actor" init function. This fixes a regression introduced by commit f268eedd ("squashfs: extend "page actor" to handle missing pages") Link: https://lkml.kernel.org/r/20220822215430.15933-1-phillip@squashfs.org.uk Fixes: f268eedd ("squashfs: extend "page actor" to handle missing pages") Reported-by:
Chris Murphy <lists@colorremedies.com> Signed-off-by:
Phillip Lougher <phillip@squashfs.org.uk> Cc: <stable@vger.kernel.org> Signed-off-by:
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Badari Pulavarty authored
When user tries to create a DAMON context via the DAMON debugfs interface with a name of an already existing context, the context directory creation fails but a new context is created and added in the internal data structure, due to absence of the directory creation success check. As a result, memory could leak and DAMON cannot be turned on. An example test case is as below: # cd /sys/kernel/debug/damon/ # echo "off" > monitor_on # echo paddr > target_ids # echo "abc" > mk_context # echo "abc" > mk_context # echo $$ > abc/target_ids # echo "on" > monitor_on <<< fails Return value of 'debugfs_create_dir()' is expected to be ignored in general, but this is an exceptional case as DAMON feature is depending on the debugfs functionality and it has the potential duplicate name issue. This commit therefore fixes the issue by checking the directory creation failure and immediately return the error in the case. Link: https://lkml.kernel.org/r/20220821180853.2400-1-sj@kernel.org Fixes: 75c1c2b5 ("mm/damon/dbgfs: support multiple contexts") Signed-off-by:Badari Pulavarty <badari.pulavarty@intel.com> Signed-off-by:
SeongJae Park <sj@kernel.org> Cc: <stable@vger.kernel.org> [ 5.15.x] Signed-off-by:
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Colin Ian King authored
Colin King is working on kernel janitorial fixes in his spare time and using his Intel email is confusing. Use his gmail account as the default email address. Link: https://lkml.kernel.org/r/20220817212753.101109-1-colin.i.king@gmail.comSigned-off-by:
Colin Ian King <colin.i.king@gmail.com> Signed-off-by:
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Quanyang Wang authored
There are two problems with the current code of memory_intersects: First, it doesn't check whether the region (begin, end) falls inside the region (virt, vend), that is (virt < begin && vend > end). The second problem is if vend is equal to begin, it will return true but this is wrong since vend (virt + size) is not the last address of the memory region but (virt + size -1) is. The wrong determination will trigger the misreporting when the function check_for_illegal_area calls memory_intersects to check if the dma region intersects with stext region. The misreporting is as below (stext is at 0x80100000): WARNING: CPU: 0 PID: 77 at kernel/dma/debug.c:1073 check_for_illegal_area+0x130/0x168 DMA-API: chipidea-usb2 e0002000.usb: device driver maps memory from kernel text or rodata [addr=800f0000] [len=65536] Modules linked in: CPU: 1 PID: 77 Comm: usb-storage Not tainted 5.19.0-yocto-standard #5 Hardware name: Xilinx Zynq Platform unwind_backtrace from show_stack+0x18/0x1c show_stack from dump_stack_lvl+0x58/0x70 dump_stack_lvl from __warn+0xb0/0x198 __warn from warn_slowpath_fmt+0x80/0xb4 warn_slowpath_fmt from check_for_illegal_area+0x130/0x168 check_for_illegal_area from debug_dma_map_sg+0x94/0x368 debug_dma_map_sg from __dma_map_sg_attrs+0x114/0x128 __dma_map_sg_attrs from dma_map_sg_attrs+0x18/0x24 dma_map_sg_attrs from usb_hcd_map_urb_for_dma+0x250/0x3b4 usb_hcd_map_urb_for_dma from usb_hcd_submit_urb+0x194/0x214 usb_hcd_submit_urb from usb_sg_wait+0xa4/0x118 usb_sg_wait from usb_stor_bulk_transfer_sglist+0xa0/0xec usb_stor_bulk_transfer_sglist from usb_stor_bulk_srb+0x38/0x70 usb_stor_bulk_srb from usb_stor_Bulk_transport+0x150/0x360 usb_stor_Bulk_transport from usb_stor_invoke_transport+0x38/0x440 usb_stor_invoke_transport from usb_stor_control_thread+0x1e0/0x238 usb_stor_control_thread from kthread+0xf8/0x104 kthread from ret_from_fork+0x14/0x2c Refactor memory_intersects to fix the two problems above. Before the 1d7db834 ("dma-debug: use memory_intersects() directly"), memory_intersects is called only by printk_late_init: printk_late_init -> init_section_intersects ->memory_intersects. There were few places where memory_intersects was called. When commit 1d7db834 ("dma-debug: use memory_intersects() directly") was merged and CONFIG_DMA_API_DEBUG is enabled, the DMA subsystem uses it to check for an illegal area and the calltrace above is triggered. [akpm@linux-foundation.org: fix nearby comment typo] Link: https://lkml.kernel.org/r/20220819081145.948016-1-quanyang.wang@windriver.com Fixes: 97955936 ("asm/sections: add helpers to check for section data") Signed-off-by:
Quanyang Wang <quanyang.wang@windriver.com> Cc: Ard Biesheuvel <ardb@kernel.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Thierry Reding <treding@nvidia.com> Cc: <stable@vger.kernel.org> Signed-off-by:
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Liu Shixin authored
The vmemmap pages is marked by kmemleak when allocated from memblock. Remove it from kmemleak when freeing the page. Otherwise, when we reuse the page, kmemleak may report such an error and then stop working. kmemleak: Cannot insert 0xffff98fb6eab3d40 into the object search tree (overlaps existing) kmemleak: Kernel memory leak detector disabled kmemleak: Object 0xffff98fb6be00000 (size 335544320): kmemleak: comm "swapper", pid 0, jiffies 4294892296 kmemleak: min_count = 0 kmemleak: count = 0 kmemleak: flags = 0x1 kmemleak: checksum = 0 kmemleak: backtrace: Link: https://lkml.kernel.org/r/20220819094005.2928241-1-liushixin2@huawei.com Fixes: f41f2ed4 (mm: hugetlb: free the vmemmap pages associated with each HugeTLB page) Signed-off-by:
Liu Shixin <liushixin2@huawei.com> Reviewed-by:
Muchun Song <songmuchun@bytedance.com> Cc: Matthew Wilcox <willy@infradead.org> Cc: Mike Kravetz <mike.kravetz@oracle.com> Cc: Oscar Salvador <osalvador@suse.de> Cc: <stable@vger.kernel.org> Signed-off-by:
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Heming Zhao authored
After commit 0737e01d ("ocfs2: ocfs2_mount_volume does cleanup job before return error"), any procedure after ocfs2_dlm_init() fails will trigger crash when calling ocfs2_dlm_shutdown(). ie: On local mount mode, no dlm resource is initialized. If ocfs2_mount_volume() fails in ocfs2_find_slot(), error handling will call ocfs2_dlm_shutdown(), then does dlm resource cleanup job, which will trigger kernel crash. This solution should bypass uninitialized resources in ocfs2_dlm_shutdown(). Link: https://lkml.kernel.org/r/20220815085754.20417-1-heming.zhao@suse.com Fixes: 0737e01d ("ocfs2: ocfs2_mount_volume does cleanup job before return error") Signed-off-by:
Heming Zhao <heming.zhao@suse.com> Reviewed-by:
Joseph Qi <joseph.qi@linux.alibaba.com> Cc: Mark Fasheh <mark@fasheh.com> Cc: Joel Becker <jlbec@evilplan.org> Cc: Junxiao Bi <junxiao.bi@oracle.com> Cc: Changwei Ge <gechangwei@live.cn> Cc: Gang He <ghe@suse.com> Cc: Jun Piao <piaojun@huawei.com> Cc: <stable@vger.kernel.org> Signed-off-by:
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Shakeel Butt authored
This reverts commit 96e51ccf. Recently we started running the kernel with rstat infrastructure on production traffic and begin to see negative memcg stats values. Particularly the 'sock' stat is the one which we observed having negative value. $ grep "sock " /mnt/memory/job/memory.stat sock 253952 total_sock 18446744073708724224 Re-run after couple of seconds $ grep "sock " /mnt/memory/job/memory.stat sock 253952 total_sock 53248 For now we are only seeing this issue on large machines (256 CPUs) and only with 'sock' stat. I think the networking stack increase the stat on one cpu and decrease it on another cpu much more often. So, this negative sock is due to rstat flusher flushing the stats on the CPU that has seen the decrement of sock but missed the CPU that has increments. A typical race condition. For easy stable backport, revert is the most simple solution. For long term solution, I am thinking of two directions. First is just reduce the race window by optimizing the rstat flusher. Second is if the reader sees a negative stat value, force flush and restart the stat collection. Basically retry but limited. Link: https://lkml.kernel.org/r/20220817172139.3141101-1-shakeelb@google.com Fixes: 96e51ccf ("memcg: cleanup racy sum avoidance code") Signed-off-by:
Shakeel Butt <shakeelb@google.com> Cc: "Michal Koutný" <mkoutny@suse.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Michal Hocko <mhocko@kernel.org> Cc: Roman Gushchin <roman.gushchin@linux.dev> Cc: Muchun Song <songmuchun@bytedance.com> Cc: David Hildenbrand <david@redhat.com> Cc: Yosry Ahmed <yosryahmed@google.com> Cc: Greg Thelen <gthelen@google.com> Cc: <stable@vger.kernel.org> [5.15] Signed-off-by:
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Sergey Senozhatsky authored
zsmalloc() now returns ERR_PTR values as handles, which zram accidentally can pass to zs_free(). Another bad scenario is when zcomp_compress() fails - handle has default -ENOMEM value, and zs_free() will try to free that "pointer value". Add the missing check and make sure that zs_free() bails out when ERR_PTR() is passed to it. Link: https://lkml.kernel.org/r/20220816050906.2583956-1-senozhatsky@chromium.org Fixes: c7e6f17b ("zsmalloc: zs_malloc: return ERR_PTR on failure") Signed-off-by:
Sergey Senozhatsky <senozhatsky@chromium.org> Cc: Minchan Kim <minchan@kernel.org> Cc: Nitin Gupta <ngupta@vflare.org>, Signed-off-by:
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Liam Howlett authored
Take the mmap_read_lock() when using the VMA in binder_alloc_print_pages() and when checking for a VMA in binder_alloc_new_buf_locked(). It is worth noting binder_alloc_new_buf_locked() drops the VMA read lock after it verifies a VMA exists, but may be taken again deeper in the call stack, if necessary. Link: https://lkml.kernel.org/r/20220810160209.1630707-1-Liam.Howlett@oracle.com Fixes: a43cfc87 (android: binder: stop saving a pointer to the VMA) Signed-off-by:
Liam R. Howlett <Liam.Howlett@oracle.com> Reported-by:
Ondrej Mosnacek <omosnace@redhat.com> Reported-by: <syzbot+a7b60a176ec13cafb793@syzkaller.appspotmail.com> Acked-by:
Carlos Llamas <cmllamas@google.com> Tested-by:
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Alex Williamson authored
The below referenced commit makes the same error as 1c563432 ("mm: fix is_pinnable_page against a cma page"), re-interpreting the logic to exclude pinning of the zero page, which breaks device assignment with vfio. To avoid further subtle mistakes, split the logic into discrete tests. [akpm@linux-foundation.org: simplify comment, per John] Link: https://lkml.kernel.org/r/166015037385.760108.16881097713975517242.stgit@omen Link: https://lore.kernel.org/all/165490039431.944052.12458624139225785964.stgit@omen Fixes: f25cbb7a ("mm: add zone device coherent type memory support") Signed-off-by:
Alex Williamson <alex.williamson@redhat.com> Suggested-by:
Matthew Wilcox <willy@infradead.org> Suggested-by:
Slawomir Laba <slawomirx.laba@intel.com> Reviewed-by:
John Hubbard <jhubbard@nvidia.com> Cc: Alex Sierra <alex.sierra@amd.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Alistair Popple <apopple@nvidia.com> Signed-off-by:
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