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2020-10-15drm/msm/dsi_pll_7nm: fix VCO rate calculationrelease/rb5/qcomlt-5.9Dmitry Baryshkov
There is no need to divide again by outdiv, it is handled separately. Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Fixes: 5c96755d3d53 ("drm: msm: dsi_pll_7nm fixes")
2020-10-15arm64: dts: qcom: rb5: Enable onboard MCP2518FD CAN transceiverManivannan Sadhasivam
Enable the onboard Microchip MCP2518FD CAN transceiver connected to SPI0. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
2020-10-15arm64: dts: sm8250: add iommus entry to QUP nodesDmitry Baryshkov
Enable IOMMUs configuration for QUP nodes to stop SM8250 boards from rebooting when using I2C DMA transfers. Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
2020-10-15Revert "i2c: i2c-qcom-geni: Fix DMA transfer race"Douglas Anderson
This reverts commit 02b9aec59243c6240fc42884acc958602146ddf6. As talked about in the patch ("soc: qcom: geni: More properly switch to DMA mode"), swapping the order of geni_se_setup_m_cmd() and geni_se_xx_dma_prep() can sometimes cause corrupted transfers. Thus we traded one problem for another. Now that we've debugged the problem further and fixed the geni helper functions to more disable FIFO interrupts when we move to DMA mode we can revert it and end up with (hopefully) zero problems! To be explicit, the patch ("soc: qcom: geni: More properly switch to DMA mode") is a prerequisite for this one. Fixes: 02b9aec59243 ("i2c: i2c-qcom-geni: Fix DMA transfer race") Signed-off-by: Douglas Anderson <dianders@chromium.org>
2020-10-15soc: qcom: geni: More properly switch to DMA modeDouglas Anderson
On geni-i2c transfers using DMA, it was seen that if you program the command (I2C_READ) before calling geni_se_rx_dma_prep() that it could cause interrupts to fire. If we get unlucky, these interrupts can just keep firing (and not be handled) blocking further progress and hanging the system. In commit 02b9aec59243 ("i2c: i2c-qcom-geni: Fix DMA transfer race") we avoided that by making sure we didn't program the command until after geni_se_rx_dma_prep() was called. While that avoided the problems, it also turns out to be invalid. At least in the TX case we started seeing sporadic corrupted transfers. This is easily seen by adding an msleep() between the DMA prep and the writing of the command, which makes the problem worse. That means we need to revert that commit and find another way to fix the bogus IRQs. Specifically, after reverting commit 02b9aec59243 ("i2c: i2c-qcom-geni: Fix DMA transfer race"), I put some traces in. I found that the when the interrupts were firing like crazy: - "m_stat" had bits for M_RX_IRQ_EN, M_RX_FIFO_WATERMARK_EN set. - "dma" was set. Further debugging showed that I could make the problem happen more reliably by adding an "msleep(1)" any time after geni_se_setup_m_cmd() ran up until geni_se_rx_dma_prep() programmed the length. A rather simple fix is to change geni_se_select_dma_mode() so it's a true inverse of geni_se_select_fifo_mode() and disables all the FIFO related interrupts. Now the problematic interrupts can't fire and we can program things in the correct order without worrying. As part of this, let's also change the writel_relaxed() in the prepare function to a writel() so that our DMA is guaranteed to be prepared now that we can't rely on geni_se_setup_m_cmd()'s writel(). NOTE: the only current user of GENI_SE_DMA in mainline is i2c. Fixes: 37692de5d523 ("i2c: i2c-qcom-geni: Add bus driver for the Qualcomm GENI I2C controller") Fixes: 02b9aec59243 ("i2c: i2c-qcom-geni: Fix DMA transfer race") Signed-off-by: Douglas Anderson <dianders@chromium.org>
2020-10-15drm/msm/dsi_pll_7nm: restore VCO rate during restore_stateDmitry Baryshkov
PHY disable/enable resets PLL registers to default values. Thus in addition to restoring several registers we also need to restore VCO rate settings. Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
2020-10-15drm: bridge: lt9611uxc: reset bridge on mode settingDmitry Baryshkov
Internal LT9611UXC logic can easily get wrong timings during mode change. So reset the chip to help it switching to the new mode. Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
2020-10-15drm: bridge: lt9611uxc: add several more modesDmitry Baryshkov
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
2020-10-15Merge tag 'v5.9' into release/rb5/qcomlt-5.9Dmitry Baryshkov
Linux 5.9
2020-10-11Linux 5.9v5.9Linus Torvalds
2020-10-11Merge branch 'akpm' (patches from Andrew)Linus Torvalds
Merge misc fixes from Andrew Morton: "Five fixes. Subsystems affected by this patch series: MAINTAINERS, mm/pagemap, mm/swap, and mm/hugetlb" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: mm: khugepaged: recalculate min_free_kbytes after memory hotplug as expected by khugepaged mm: validate inode in mapping_set_error() mm: mmap: Fix general protection fault in unlink_file_vma() MAINTAINERS: Antoine Tenart's email address MAINTAINERS: change hardening mailing list
2020-10-11Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfsLinus Torvalds
Pull vfs fix from Al Viro: "Fixes an obvious bug (memory leak introduced in 5.8)" * 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: pipe: Fix memory leaks in create_pipe_files()
2020-10-11Merge tag 'x86-urgent-2020-10-11' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 fixes from Ingo Molnar: "Two fixes: - Fix a (hopefully final) IRQ state tracking bug vs MCE handling - Fix a documentation link" * tag 'x86-urgent-2020-10-11' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: Documentation/x86: Fix incorrect references to zero-page.txt x86/mce: Use idtentry_nmi_enter/exit()
2020-10-11Merge tag 'perf-urgent-2020-10-11' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull perf fix from Ingo Molnar: "Fix an error handling bug that can cause a lockup if a CPU is offline (doh ...)" * tag 'perf-urgent-2020-10-11' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf: Fix task_function_call() error handling
2020-10-11mm: khugepaged: recalculate min_free_kbytes after memory hotplug as expected ↵Vijay Balakrishna
by khugepaged When memory is hotplug added or removed the min_free_kbytes should be recalculated based on what is expected by khugepaged. Currently after hotplug, min_free_kbytes will be set to a lower default and higher default set when THP enabled is lost. This change restores min_free_kbytes as expected for THP consumers. [vijayb@linux.microsoft.com: v5] Link: https://lkml.kernel.org/r/1601398153-5517-1-git-send-email-vijayb@linux.microsoft.com Fixes: f000565adb77 ("thp: set recommended min free kbytes") Signed-off-by: Vijay Balakrishna <vijayb@linux.microsoft.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Reviewed-by: Pavel Tatashin <pasha.tatashin@soleen.com> Acked-by: Michal Hocko <mhocko@suse.com> Cc: Allen Pais <apais@microsoft.com> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Song Liu <songliubraving@fb.com> Cc: <stable@vger.kernel.org> Link: https://lkml.kernel.org/r/1600305709-2319-2-git-send-email-vijayb@linux.microsoft.com Link: https://lkml.kernel.org/r/1600204258-13683-1-git-send-email-vijayb@linux.microsoft.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-10-11mm: validate inode in mapping_set_error()Minchan Kim
The swap address_space doesn't have host. Thus, it makes kernel crash once swap write meets error. Fix it. Fixes: 735e4ae5ba28 ("vfs: track per-sb writeback errors and report them to syncfs") Signed-off-by: Minchan Kim <minchan@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Acked-by: Jeff Layton <jlayton@kernel.org> Cc: Jan Kara <jack@suse.cz> Cc: Andres Freund <andres@anarazel.de> Cc: Matthew Wilcox <willy@infradead.org> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Christoph Hellwig <hch@infradead.org> Cc: Dave Chinner <david@fromorbit.com> Cc: David Howells <dhowells@redhat.com> Cc: <stable@vger.kernel.org> Link: https://lkml.kernel.org/r/20201010000650.750063-1-minchan@kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-10-11mm: mmap: Fix general protection fault in unlink_file_vma()Miaohe Lin
The syzbot reported the below general protection fault: general protection fault, probably for non-canonical address 0xe00eeaee0000003b: 0000 [#1] PREEMPT SMP KASAN KASAN: maybe wild-memory-access in range [0x00777770000001d8-0x00777770000001df] CPU: 1 PID: 10488 Comm: syz-executor721 Not tainted 5.9.0-rc3-syzkaller #0 RIP: 0010:unlink_file_vma+0x57/0xb0 mm/mmap.c:164 Call Trace: free_pgtables+0x1b3/0x2f0 mm/memory.c:415 exit_mmap+0x2c0/0x530 mm/mmap.c:3184 __mmput+0x122/0x470 kernel/fork.c:1076 mmput+0x53/0x60 kernel/fork.c:1097 exit_mm kernel/exit.c:483 [inline] do_exit+0xa8b/0x29f0 kernel/exit.c:793 do_group_exit+0x125/0x310 kernel/exit.c:903 get_signal+0x428/0x1f00 kernel/signal.c:2757 arch_do_signal+0x82/0x2520 arch/x86/kernel/signal.c:811 exit_to_user_mode_loop kernel/entry/common.c:136 [inline] exit_to_user_mode_prepare+0x1ae/0x200 kernel/entry/common.c:167 syscall_exit_to_user_mode+0x7e/0x2e0 kernel/entry/common.c:242 entry_SYSCALL_64_after_hwframe+0x44/0xa9 It's because the ->mmap() callback can change vma->vm_file and fput the original file. But the commit d70cec898324 ("mm: mmap: merge vma after call_mmap() if possible") failed to catch this case and always fput() the original file, hence add an extra fput(). [ Thanks Hillf for pointing this extra fput() out. ] Fixes: d70cec898324 ("mm: mmap: merge vma after call_mmap() if possible") Reported-by: syzbot+c5d5a51dcbb558ca0cb5@syzkaller.appspotmail.com Signed-off-by: Miaohe Lin <linmiaohe@huawei.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Cc: Christian König <ckoenig.leichtzumerken@gmail.com> Cc: Hongxiang Lou <louhongxiang@huawei.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Dave Airlie <airlied@redhat.com> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: Sumit Semwal <sumit.semwal@linaro.org> Cc: Matthew Wilcox (Oracle) <willy@infradead.org> Cc: John Hubbard <jhubbard@nvidia.com> Link: https://lkml.kernel.org/r/20200916090733.31427-1-linmiaohe@huawei.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-10-11MAINTAINERS: Antoine Tenart's email addressAntoine Tenart
Use my kernel.org address instead of my bootlin.com one. Signed-off-by: Antoine Tenart <atenart@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Link: https://lkml.kernel.org/r/20201005164533.16811-1-atenart@kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-10-11MAINTAINERS: change hardening mailing listKees Cook
As more email from git history gets aimed at the OpenWall kernel-hardening@ list, there has been a desire to separate "new topics" from "on-going" work. To handle this, the superset of hardening email topics are now to be directed to linux-hardening@vger.kernel.org. Update the MAINTAINERS file and the .mailmap to accomplish this, so that linux-hardening@ can be treated like any other regular upstream kernel development list. Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Cc: Randy Dunlap <rdunlap@infradead.org> Cc: Emese Revfy <re.emese@gmail.com> Cc: "Tobin C. Harding" <me@tobin.cc> Cc: Tycho Andersen <tycho@tycho.pizza> Cc: Jonathan Corbet <corbet@lwn.net> Link: https://lore.kernel.org/linux-hardening/202010051443.279CC265D@keescook/ Link: https://lkml.kernel.org/r/20201006000012.2768958-1-keescook@chromium.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-10-10Merge branch 'i2c/for-current' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux Pull i2c fixes from Wolfram Sang: "Some more driver bugfixes for I2C. Including a revert - the updated series for it will come during the next merge window" * 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: i2c: owl: Clear NACK and BUS error bits Revert "i2c: imx: Fix reset of I2SR_IAL flag" i2c: meson: fixup rate calculation with filter delay i2c: meson: keep peripheral clock enabled i2c: meson: fix clock setting overwrite i2c: imx: Fix reset of I2SR_IAL flag
2020-10-10cifs: Fix incomplete memory allocation on setxattr pathVladimir Zapolskiy
On setxattr() syscall path due to an apprent typo the size of a dynamically allocated memory chunk for storing struct smb2_file_full_ea_info object is computed incorrectly, to be more precise the first addend is the size of a pointer instead of the wanted object size. Coincidentally it makes no difference on 64-bit platforms, however on 32-bit targets the following memcpy() writes 4 bytes of data outside of the dynamically allocated memory. ============================================================================= BUG kmalloc-16 (Not tainted): Redzone overwritten ----------------------------------------------------------------------------- Disabling lock debugging due to kernel taint INFO: 0x79e69a6f-0x9e5cdecf @offset=368. First byte 0x73 instead of 0xcc INFO: Slab 0xd36d2454 objects=85 used=51 fp=0xf7d0fc7a flags=0x35000201 INFO: Object 0x6f171df3 @offset=352 fp=0x00000000 Redzone 5d4ff02d: cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc ................ Object 6f171df3: 00 00 00 00 00 05 06 00 73 6e 72 75 62 00 66 69 ........snrub.fi Redzone 79e69a6f: 73 68 32 0a sh2. Padding 56254d82: 5a 5a 5a 5a 5a 5a 5a 5a ZZZZZZZZ CPU: 0 PID: 8196 Comm: attr Tainted: G B 5.9.0-rc8+ #3 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.13.0-1 04/01/2014 Call Trace: dump_stack+0x54/0x6e print_trailer+0x12c/0x134 check_bytes_and_report.cold+0x3e/0x69 check_object+0x18c/0x250 free_debug_processing+0xfe/0x230 __slab_free+0x1c0/0x300 kfree+0x1d3/0x220 smb2_set_ea+0x27d/0x540 cifs_xattr_set+0x57f/0x620 __vfs_setxattr+0x4e/0x60 __vfs_setxattr_noperm+0x4e/0x100 __vfs_setxattr_locked+0xae/0xd0 vfs_setxattr+0x4e/0xe0 setxattr+0x12c/0x1a0 path_setxattr+0xa4/0xc0 __ia32_sys_lsetxattr+0x1d/0x20 __do_fast_syscall_32+0x40/0x70 do_fast_syscall_32+0x29/0x60 do_SYSENTER_32+0x15/0x20 entry_SYSENTER_32+0x9f/0xf2 Fixes: 5517554e4313 ("cifs: Add support for writing attributes on SMB2+") Signed-off-by: Vladimir Zapolskiy <vladimir@tuxera.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-10-10mm/khugepaged: fix filemap page_to_pgoff(page) != offsetHugh Dickins
There have been elusive reports of filemap_fault() hitting its VM_BUG_ON_PAGE(page_to_pgoff(page) != offset, page) on kernels built with CONFIG_READ_ONLY_THP_FOR_FS=y. Suren has hit it on a kernel with CONFIG_READ_ONLY_THP_FOR_FS=y and CONFIG_NUMA is not set: and he has analyzed it down to how khugepaged without NUMA reuses the same huge page after collapse_file() failed (whereas NUMA targets its allocation to the respective node each time). And most of us were usually testing with CONFIG_NUMA=y kernels. collapse_file(old start) new_page = khugepaged_alloc_page(hpage) __SetPageLocked(new_page) new_page->index = start // hpage->index=old offset new_page->mapping = mapping xas_store(&xas, new_page) filemap_fault page = find_get_page(mapping, offset) // if offset falls inside hpage then // compound_head(page) == hpage lock_page_maybe_drop_mmap() __lock_page(page) // collapse fails xas_store(&xas, old page) new_page->mapping = NULL unlock_page(new_page) collapse_file(new start) new_page = khugepaged_alloc_page(hpage) __SetPageLocked(new_page) new_page->index = start // hpage->index=new offset new_page->mapping = mapping // mapping becomes valid again // since compound_head(page) == hpage // page_to_pgoff(page) got changed VM_BUG_ON_PAGE(page_to_pgoff(page) != offset) An initial patch replaced __SetPageLocked() by lock_page(), which did fix the race which Suren illustrates above. But testing showed that it's not good enough: if the racing task's __lock_page() gets delayed long after its find_get_page(), then it may follow collapse_file(new start)'s successful final unlock_page(), and crash on the same VM_BUG_ON_PAGE. It could be fixed by relaxing filemap_fault()'s VM_BUG_ON_PAGE to a check and retry (as is done for mapping), with similar relaxations in find_lock_entry() and pagecache_get_page(): but it's not obvious what else might get caught out; and khugepaged non-NUMA appears to be unique in exposing a page to page cache, then revoking, without going through a full cycle of freeing before reuse. Instead, non-NUMA khugepaged_prealloc_page() release the old page if anyone else has a reference to it (1% of cases when I tested). Although never reported on huge tmpfs, I believe its find_lock_entry() has been at similar risk; but huge tmpfs does not rely on khugepaged for its normal working nearly so much as READ_ONLY_THP_FOR_FS does. Reported-by: Denis Lisov <dennis.lissov@gmail.com> Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=206569 Link: https://lore.kernel.org/linux-mm/?q=20200219144635.3b7417145de19b65f258c943%40linux-foundation.org Reported-by: Qian Cai <cai@lca.pw> Link: https://lore.kernel.org/linux-xfs/?q=20200616013309.GB815%40lca.pw Reported-and-analyzed-by: Suren Baghdasaryan <surenb@google.com> Fixes: 87c460a0bded ("mm/khugepaged: collapse_shmem() without freezing new_page") Signed-off-by: Hugh Dickins <hughd@google.com> Cc: stable@vger.kernel.org # v4.9+ Reviewed-by: Matthew Wilcox (Oracle) <willy@infradead.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-10-10i2c: owl: Clear NACK and BUS error bitsCristian Ciocaltea
When the NACK and BUS error bits are set by the hardware, the driver is responsible for clearing them by writing "1" into the corresponding status registers. Hence perform the necessary operations in owl_i2c_interrupt(). Fixes: d211e62af466 ("i2c: Add Actions Semiconductor Owl family S900 I2C driver") Reported-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@gmail.com> Signed-off-by: Wolfram Sang <wsa@kernel.org>
2020-10-10Revert "i2c: imx: Fix reset of I2SR_IAL flag"Wolfram Sang
This reverts commit fa4d30556883f2eaab425b88ba9904865a4d00f3. An updated version was sent. So, revert this version and give the new version more time for testing. Signed-off-by: Wolfram Sang <wsa@kernel.org>
2020-10-09Merge tag 'spi-fix-v5.9-rc8' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi Pull spi fix from Mark Brown: "One last minute fix for v5.9 which has been causing crashes in test systems with the fsl-dspi driver when they hit deferred probe (and which I probably let cook in next a bit longer than is ideal). And an update to MAINTAINERS reflecting Serge's extensive and detailed recent work on the DesignWare driver" * tag 'spi-fix-v5.9-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: MAINTAINERS: Add maintainer of DW APB SSI driver spi: fsl-dspi: fix NULL pointer dereference
2020-10-09Merge tag 'riscv-for-linus-5.9' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux Pull RISC-V fixes from Palmer Dabbelt: "Two fixes this week: - A fix to actually reserve the device tree's memory. Without this the device tree can be overwritten on systems that don't otherwise reserve it. This issue should only manifest on !MMU systems. - A workaround for a BUG() that triggers when the memory that originally contained initdata is freed and later repurposed. This triggers a BUG() on builds that had HARDENED_USERCOPY enabled" * tag 'riscv-for-linus-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: riscv: Fixup bootup failure with HARDENED_USERCOPY RISC-V: Make sure memblock reserves the memory containing DT
2020-10-09Merge tag 'for-v5.9-rc' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply Pull power supply fix from Sebastian Reichel: "Just a single change to revert enablement of packet error checking for battery data on Chromebooks, since some of their embedded controllers do not handle it correctly" * tag 'for-v5.9-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply: power: supply: sbs-battery: chromebook workaround for PEC
2020-10-09Merge tag 'gpio-v5.9-3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio Pull GPIO fixes from Linus Walleij: "Some late fixes: one IRQ issue and one compilation issue for UML. - Fix a compilation issue with User Mode Linux - Handle spurious interrupts properly in the PCA953x driver" * tag 'gpio-v5.9-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: gpio: pca953x: Survive spurious interrupts gpiolib: Disable compat ->read() code in UML case
2020-10-09Merge tag 'mmc-v5.9-rc4-4' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc Pull MMC fix from Ulf Hansson: "Assign a proper discard granularity rather than incorrectly set it to zero" * tag 'mmc-v5.9-rc4-4' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc: mmc: core: don't set limits.discard_granularity as 0
2020-10-09Merge tag 'drm-fixes-2020-10-09' of git://anongit.freedesktop.org/drm/drmLinus Torvalds
Pull amdgpu drm fixes from Dave Airlie: "Fixes trickling in this week. Alex had a final fix for the newest GPU they introduced in rc1, along with one build regression and one crasher fix. Cross my fingers that's it for 5.9: - Fix a crash on renoir if you override the IP discovery parameter - Fix the build on ARC platforms - Display fix for Sienna Cichlid" * tag 'drm-fixes-2020-10-09' of git://anongit.freedesktop.org/drm/drm: drm/amd/display: Change ABM config init interface drm/amdgpu/swsmu: fix ARC build errors drm/amdgpu: fix NULL pointer dereference for Renoir
2020-10-09mmc: core: don't set limits.discard_granularity as 0Coly Li
In mmc_queue_setup_discard() the mmc driver queue's discard_granularity might be set as 0 (when card->pref_erase > max_discard) while the mmc device still declares to support discard operation. This is buggy and triggered the following kernel warning message, WARNING: CPU: 0 PID: 135 at __blkdev_issue_discard+0x200/0x294 CPU: 0 PID: 135 Comm: f2fs_discard-17 Not tainted 5.9.0-rc6 #1 Hardware name: Google Kevin (DT) pstate: 00000005 (nzcv daif -PAN -UAO BTYPE=--) pc : __blkdev_issue_discard+0x200/0x294 lr : __blkdev_issue_discard+0x54/0x294 sp : ffff800011dd3b10 x29: ffff800011dd3b10 x28: 0000000000000000 x27: ffff800011dd3cc4 x26: ffff800011dd3e18 x25: 000000000004e69b x24: 0000000000000c40 x23: ffff0000f1deaaf0 x22: ffff0000f2849200 x21: 00000000002734d8 x20: 0000000000000008 x19: 0000000000000000 x18: 0000000000000000 x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000 x14: 0000000000000394 x13: 0000000000000000 x12: 0000000000000000 x11: 0000000000000000 x10: 00000000000008b0 x9 : ffff800011dd3cb0 x8 : 000000000004e69b x7 : 0000000000000000 x6 : ffff0000f1926400 x5 : ffff0000f1940800 x4 : 0000000000000000 x3 : 0000000000000c40 x2 : 0000000000000008 x1 : 00000000002734d8 x0 : 0000000000000000 Call trace: __blkdev_issue_discard+0x200/0x294 __submit_discard_cmd+0x128/0x374 __issue_discard_cmd_orderly+0x188/0x244 __issue_discard_cmd+0x2e8/0x33c issue_discard_thread+0xe8/0x2f0 kthread+0x11c/0x120 ret_from_fork+0x10/0x1c ---[ end trace e4c8023d33dfe77a ]--- This patch fixes the issue by setting discard_granularity as SECTOR_SIZE instead of 0 when (card->pref_erase > max_discard) is true. Now no more complain from __blkdev_issue_discard() for the improper value of discard granularity. This issue is exposed after commit b35fd7422c2f ("block: check queue's limits.discard_granularity in __blkdev_issue_discard()"), a "Fixes:" tag is also added for the commit to make sure people won't miss this patch after applying the change of __blkdev_issue_discard(). Fixes: e056a1b5b67b ("mmc: queue: let host controllers specify maximum discard timeout") Fixes: b35fd7422c2f ("block: check queue's limits.discard_granularity in __blkdev_issue_discard()"). Reported-and-tested-by: Vicente Bergas <vicencb@gmail.com> Signed-off-by: Coly Li <colyli@suse.de> Acked-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Ulf Hansson <ulf.hansson@linaro.org> Link: https://lore.kernel.org/r/20201002013852.51968-1-colyli@suse.de Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2020-10-09perf: Fix task_function_call() error handlingKajol Jain
The error handling introduced by commit: 2ed6edd33a21 ("perf: Add cond_resched() to task_function_call()") looses any return value from smp_call_function_single() that is not {0, -EINVAL}. This is a problem because it will return -EXNIO when the target CPU is offline. Worse, in that case it'll turn into an infinite loop. Fixes: 2ed6edd33a21 ("perf: Add cond_resched() to task_function_call()") Reported-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com> Signed-off-by: Kajol Jain <kjain@linux.ibm.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Ingo Molnar <mingo@kernel.org> Reviewed-by: Barret Rhoden <brho@google.com> Tested-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com> Link: https://lkml.kernel.org/r/20200827064732.20860-1-kjain@linux.ibm.com
2020-10-09Merge tag 'amd-drm-fixes-5.9-2020-10-08' of ↵Dave Airlie
git://people.freedesktop.org/~agd5f/linux into drm-fixes amd-drm-fixes-5.9-2020-10-08: amdgpu: - Fix a crash on renoir if you override the IP discovery parameter - Fix the build on ARC platforms - Display fix for Sienna Cichlid Signed-off-by: Dave Airlie <airlied@redhat.com> From: Alex Deucher <alexdeucher@gmail.com> Link: https://patchwork.freedesktop.org/patch/msgid/20201009024917.3984-1-alexander.deucher@amd.com
2020-10-08Merge tag 'block5.9-2020-10-08' of git://git.kernel.dk/linux-blockLinus Torvalds
Pull block fixes from Jens Axboe: "A few fixes that should go into this release: - NVMe controller error path reference fix (Chaitanya) - Fix regression with IBM partitions on non-dasd devices (Christoph) - Fix a missing clear in the compat CDROM packet structure (Peilin)" * tag 'block5.9-2020-10-08' of git://git.kernel.dk/linux-block: partitions/ibm: fix non-DASD devices nvme-core: put ctrl ref when module ref get fail block/scsi-ioctl: Fix kernel-infoleak in scsi_put_cdrom_generic_arg()
2020-10-09power: supply: sbs-battery: chromebook workaround for PECSebastian Reichel
Looks like the I2C tunnel implementation from Chromebook's embedded controller does not handle PEC correctly. Fix this by disabling PEC for batteries behind those I2C tunnels as a workaround. Note, that some Chromebooks actually have been reported to have working PEC support (with I2C tunnel). Since the problem has not yet been fully understood this simply reverts all Chromebooks to not use PEC for now. Reported-by: "Milan P. Stanić" <mps@arvanta.net> Reported-by: Vicente Bergas <vicencb@gmail.com> CC: Enric Balletbo i Serra <enric.balletbo@collabora.com> Fixes: 7222bd603dd2 ("power: supply: sbs-battery: add PEC support") Tested-by: Vicente Bergas <vicencb@gmail.com> Tested-by: "Milan P. Stanić" <mps@arvanta.net> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2020-10-08Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhostLinus Torvalds
Pull vhost fixes from Michael Tsirkin: "Some last minute vhost,vdpa fixes. The last two of them haven't been in next but they do seem kind of obvious, very small and safe, fix bugs reported in the field, and they are both in a new mlx5 vdpa driver, so it's not like we can introduce regressions" * tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost: vdpa/mlx5: Fix dependency on MLX5_CORE vdpa/mlx5: should keep avail_index despite device status vhost-vdpa: fix page pinning leakage in error path vhost-vdpa: fix vhost_vdpa_map() on error condition vhost: Don't call log_access_ok() when using IOTLB vhost: Use vhost_get_used_size() in vhost_vring_set_addr() vhost: Don't call access_ok() when using IOTLB vhost vdpa: fix vhost_vdpa_open error handling
2020-10-08drm/amd/display: Change ABM config init interfaceYongqiang Sun
[Why & How] change abm config init interface to support multiple ABMs. Signed-off-by: Yongqiang Sun <yongqiang.sun@amd.com> Reviewed-by: Chris Park <Chris.Park@amd.com> Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-10-08Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netLinus Torvalds
Pull networking fixes from Jakub Kicinski: "One more set of fixes from the networking tree: - add missing input validation in nl80211_del_key(), preventing out-of-bounds access - last minute fix / improvement of a MRP netlink (uAPI) interface introduced in 5.9 (current) release - fix "unresolved symbol" build error under CONFIG_NET w/o CONFIG_INET due to missing tcp_timewait_sock and inet_timewait_sock BTF. - fix 32 bit sub-register bounds tracking in the bpf verifier for OR case - tcp: fix receive window update in tcp_add_backlog() - openvswitch: handle DNAT tuple collision in conntrack-related code - r8169: wait for potential PHY reset to finish after applying a FW file, avoiding unexpected PHY behaviour and failures later on - mscc: fix tail dropping watermarks for Ocelot switches - avoid use-after-free in macsec code after a call to the GRO layer - avoid use-after-free in sctp error paths - add a device id for Cellient MPL200 WWAN card - rxrpc fixes: - fix the xdr encoding of the contents read from an rxrpc key - fix a BUG() for a unsupported encoding type. - fix missing _bh lock annotations. - fix acceptance handling for an incoming call where the incoming call is encrypted. - the server token keyring isn't network namespaced - it belongs to the server, so there's no need. Namespacing it means that request_key() fails to find it. - fix a leak of the server keyring" * git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (21 commits) net: usb: qmi_wwan: add Cellient MPL200 card macsec: avoid use-after-free in macsec_handle_frame() r8169: consider that PHY reset may still be in progress after applying firmware openvswitch: handle DNAT tuple collision sctp: fix sctp_auth_init_hmacs() error path bridge: Netlink interface fix. net: wireless: nl80211: fix out-of-bounds access in nl80211_del_key() bpf: Fix scalar32_min_max_or bounds tracking tcp: fix receive window update in tcp_add_backlog() net: usb: rtl8150: set random MAC address when set_ethernet_addr() fails mptcp: more DATA FIN fixes net: mscc: ocelot: warn when encoding an out-of-bounds watermark value net: mscc: ocelot: divide watermark value by 60 when writing to SYS_ATOP net: qrtr: ns: Fix the incorrect usage of rcu_read_lock() rxrpc: Fix server keyring leak rxrpc: The server keyring isn't network-namespaced rxrpc: Fix accept on a connection that need securing rxrpc: Fix some missing _bh annotations on locking conn->state_lock rxrpc: Downgrade the BUG() for unsupported token type in rxrpc_read() rxrpc: Fix rxkad token xdr encoding ...
2020-10-08vdpa/mlx5: Fix dependency on MLX5_COREEli Cohen
Remove propmt for selecting MLX5_VDPA by the user and modify MLX5_VDPA_NET to select MLX5_VDPA. Also modify MLX5_VDPA_NET to depend on mlx5_core. This fixes an issue where configuration sets 'y' for MLX5_VDPA_NET while MLX5_CORE is compiled as a module causing link errors. Reported-by: kernel test robot <lkp@intel.com> Fixes: 1a86b377aa21 ("vdpa/mlx5: Add VDPA driver for supported mlx5 device")s Signed-off-by: Eli Cohen <elic@nvidia.com> Link: https://lore.kernel.org/r/20201007064011.GA50074@mtl-vdi-166.wap.labs.mlnx Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2020-10-08vdpa/mlx5: should keep avail_index despite device statusSi-Wei Liu
A VM with mlx5 vDPA has below warnings while being reset: vhost VQ 0 ring restore failed: -1: Resource temporarily unavailable (11) vhost VQ 1 ring restore failed: -1: Resource temporarily unavailable (11) We should allow userspace emulating the virtio device be able to get to vq's avail_index, regardless of vDPA device status. Save the index that was last seen when virtq was stopped, so that userspace doesn't complain. Signed-off-by: Si-Wei Liu <si-wei.liu@oracle.com> Link: https://lore.kernel.org/r/1601583511-15138-1-git-send-email-si-wei.liu@oracle.com Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Acked-by: Eli Cohen <elic@nvidia.com>
2020-10-08net: usb: qmi_wwan: add Cellient MPL200 cardWilken Gottwalt
Add usb ids of the Cellient MPL200 card. Signed-off-by: Wilken Gottwalt <wilken.gottwalt@mailbox.org> Acked-by: Bjørn Mork <bjorn@mork.no> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-08macsec: avoid use-after-free in macsec_handle_frame()Eric Dumazet
De-referencing skb after call to gro_cells_receive() is not allowed. We need to fetch skb->len earlier. Fixes: 5491e7c6b1a9 ("macsec: enable GRO and RPS on macsec devices") Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Paolo Abeni <pabeni@redhat.com> Acked-by: Paolo Abeni <pabeni@redhat.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-08r8169: consider that PHY reset may still be in progress after applying firmwareHeiner Kallweit
Some firmware files trigger a PHY soft reset and don't wait for it to be finished. PHY register writes directly after applying the firmware may fail or provide unexpected results therefore. Fix this by waiting for bit BMCR_RESET to be cleared after applying firmware. There's nothing wrong with the referenced change, it's just that the fix will apply cleanly only after this change. Fixes: 89fbd26cca7e ("r8169: fix firmware not resetting tp->ocp_base") Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-08openvswitch: handle DNAT tuple collisionDumitru Ceara
With multiple DNAT rules it's possible that after destination translation the resulting tuples collide. For example, two openvswitch flows: nw_dst=10.0.0.10,tp_dst=10, actions=ct(commit,table=2,nat(dst=20.0.0.1:20)) nw_dst=10.0.0.20,tp_dst=10, actions=ct(commit,table=2,nat(dst=20.0.0.1:20)) Assuming two TCP clients initiating the following connections: 10.0.0.10:5000->10.0.0.10:10 10.0.0.10:5000->10.0.0.20:10 Both tuples would translate to 10.0.0.10:5000->20.0.0.1:20 causing nf_conntrack_confirm() to fail because of tuple collision. Netfilter handles this case by allocating a null binding for SNAT at egress by default. Perform the same operation in openvswitch for DNAT if no explicit SNAT is requested by the user and allocate a null binding for SNAT for packets in the "original" direction. Reported-at: https://bugzilla.redhat.com/1877128 Suggested-by: Florian Westphal <fw@strlen.de> Fixes: 05752523e565 ("openvswitch: Interface with NAT.") Signed-off-by: Dumitru Ceara <dceara@redhat.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-08sctp: fix sctp_auth_init_hmacs() error pathEric Dumazet
After freeing ep->auth_hmacs we have to clear the pointer or risk use-after-free as reported by syzbot: BUG: KASAN: use-after-free in sctp_auth_destroy_hmacs net/sctp/auth.c:509 [inline] BUG: KASAN: use-after-free in sctp_auth_destroy_hmacs net/sctp/auth.c:501 [inline] BUG: KASAN: use-after-free in sctp_auth_free+0x17e/0x1d0 net/sctp/auth.c:1070 Read of size 8 at addr ffff8880a8ff52c0 by task syz-executor941/6874 CPU: 0 PID: 6874 Comm: syz-executor941 Not tainted 5.9.0-rc8-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x198/0x1fd lib/dump_stack.c:118 print_address_description.constprop.0.cold+0xae/0x497 mm/kasan/report.c:383 __kasan_report mm/kasan/report.c:513 [inline] kasan_report.cold+0x1f/0x37 mm/kasan/report.c:530 sctp_auth_destroy_hmacs net/sctp/auth.c:509 [inline] sctp_auth_destroy_hmacs net/sctp/auth.c:501 [inline] sctp_auth_free+0x17e/0x1d0 net/sctp/auth.c:1070 sctp_endpoint_destroy+0x95/0x240 net/sctp/endpointola.c:203 sctp_endpoint_put net/sctp/endpointola.c:236 [inline] sctp_endpoint_free+0xd6/0x110 net/sctp/endpointola.c:183 sctp_destroy_sock+0x9c/0x3c0 net/sctp/socket.c:4981 sctp_v6_destroy_sock+0x11/0x20 net/sctp/socket.c:9415 sk_common_release+0x64/0x390 net/core/sock.c:3254 sctp_close+0x4ce/0x8b0 net/sctp/socket.c:1533 inet_release+0x12e/0x280 net/ipv4/af_inet.c:431 inet6_release+0x4c/0x70 net/ipv6/af_inet6.c:475 __sock_release+0xcd/0x280 net/socket.c:596 sock_close+0x18/0x20 net/socket.c:1277 __fput+0x285/0x920 fs/file_table.c:281 task_work_run+0xdd/0x190 kernel/task_work.c:141 exit_task_work include/linux/task_work.h:25 [inline] do_exit+0xb7d/0x29f0 kernel/exit.c:806 do_group_exit+0x125/0x310 kernel/exit.c:903 __do_sys_exit_group kernel/exit.c:914 [inline] __se_sys_exit_group kernel/exit.c:912 [inline] __x64_sys_exit_group+0x3a/0x50 kernel/exit.c:912 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x43f278 Code: Bad RIP value. RSP: 002b:00007fffe0995c38 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000043f278 RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000000 RBP: 00000000004bf068 R08: 00000000000000e7 R09: ffffffffffffffd0 R10: 0000000020000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00000000006d1180 R14: 0000000000000000 R15: 0000000000000000 Allocated by task 6874: kasan_save_stack+0x1b/0x40 mm/kasan/common.c:48 kasan_set_track mm/kasan/common.c:56 [inline] __kasan_kmalloc.constprop.0+0xbf/0xd0 mm/kasan/common.c:461 kmem_cache_alloc_trace+0x174/0x300 mm/slab.c:3554 kmalloc include/linux/slab.h:554 [inline] kmalloc_array include/linux/slab.h:593 [inline] kcalloc include/linux/slab.h:605 [inline] sctp_auth_init_hmacs+0xdb/0x3b0 net/sctp/auth.c:464 sctp_auth_init+0x8a/0x4a0 net/sctp/auth.c:1049 sctp_setsockopt_auth_supported net/sctp/socket.c:4354 [inline] sctp_setsockopt+0x477e/0x97f0 net/sctp/socket.c:4631 __sys_setsockopt+0x2db/0x610 net/socket.c:2132 __do_sys_setsockopt net/socket.c:2143 [inline] __se_sys_setsockopt net/socket.c:2140 [inline] __x64_sys_setsockopt+0xba/0x150 net/socket.c:2140 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 Freed by task 6874: kasan_save_stack+0x1b/0x40 mm/kasan/common.c:48 kasan_set_track+0x1c/0x30 mm/kasan/common.c:56 kasan_set_free_info+0x1b/0x30 mm/kasan/generic.c:355 __kasan_slab_free+0xd8/0x120 mm/kasan/common.c:422 __cache_free mm/slab.c:3422 [inline] kfree+0x10e/0x2b0 mm/slab.c:3760 sctp_auth_destroy_hmacs net/sctp/auth.c:511 [inline] sctp_auth_destroy_hmacs net/sctp/auth.c:501 [inline] sctp_auth_init_hmacs net/sctp/auth.c:496 [inline] sctp_auth_init_hmacs+0x2b7/0x3b0 net/sctp/auth.c:454 sctp_auth_init+0x8a/0x4a0 net/sctp/auth.c:1049 sctp_setsockopt_auth_supported net/sctp/socket.c:4354 [inline] sctp_setsockopt+0x477e/0x97f0 net/sctp/socket.c:4631 __sys_setsockopt+0x2db/0x610 net/socket.c:2132 __do_sys_setsockopt net/socket.c:2143 [inline] __se_sys_setsockopt net/socket.c:2140 [inline] __x64_sys_setsockopt+0xba/0x150 net/socket.c:2140 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 Fixes: 1f485649f529 ("[SCTP]: Implement SCTP-AUTH internals") Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Vlad Yasevich <vyasevich@gmail.com> Cc: Neil Horman <nhorman@tuxdriver.com> Cc: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com> Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-08Merge tag 'mac80211-for-net-2020-10-08' of ↵Jakub Kicinski
git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211 Johannes Berg says: ==================== pull-request: mac80211 2020-10-08 A single fix for missing input validation in nl80211. ==================== Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-08Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpfJakub Kicinski
Daniel Borkmann says: ==================== pull-request: bpf 2020-10-08 The main changes are: 1) Fix "unresolved symbol" build error under CONFIG_NET w/o CONFIG_INET due to missing tcp_timewait_sock and inet_timewait_sock BTF, from Yonghong Song. 2) Fix 32 bit sub-register bounds tracking for OR case, from Daniel Borkmann. ==================== Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-08bridge: Netlink interface fix.Henrik Bjoernlund
This commit is correcting NETLINK br_fill_ifinfo() to be able to handle 'filter_mask' with multiple flags asserted. Fixes: 36a8e8e265420 ("bridge: Extend br_fill_ifinfo to return MPR status") Signed-off-by: Henrik Bjoernlund <henrik.bjoernlund@microchip.com> Reviewed-by: Horatiu Vultur <horatiu.vultur@microchip.com> Suggested-by: Nikolay Aleksandrov <nikolay@nvidia.com> Tested-by: Horatiu Vultur <horatiu.vultur@microchip.com> Acked-by: Nikolay Aleksandrov <nikolay@nvidia.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-08Merge tag 'drm-fixes-2020-10-08' of git://anongit.freedesktop.org/drm/drmLinus Torvalds
Pull drm nouveau fixes from Dave Airlie: "Karol found two last minute nouveau fixes, they both fix crashes, the TTM one follows what other drivers do already, and the other is for bailing on load on unrecognised chipsets. - fix crash in TTM alloc fail path - return error earlier for unknown chipsets" * tag 'drm-fixes-2020-10-08' of git://anongit.freedesktop.org/drm/drm: drm/nouveau/mem: guard against NULL pointer access in mem_del drm/nouveau/device: return error for unknown chipsets
2020-10-08Merge tag 'exfat-for-5.9-rc9' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/linkinjeon/exfat Pull exfat fixes from Namjae Jeon: - Fix use of uninitialized spinlock on error path - Fix missing err assignment in exfat_build_inode() * tag 'exfat-for-5.9-rc9' of git://git.kernel.org/pub/scm/linux/kernel/git/linkinjeon/exfat: exfat: fix use of uninitialized spinlock on error path exfat: fix pointer error checking
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-18 10:08:45 +0000