watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [syz-executor.0:14769] Modules linked in: irq event stamp: 2228 hardirqs last enabled at (2227): [] __exit_to_kernel_mode arch/arm64/kernel/entry-common.c:82 [inline] hardirqs last enabled at (2227): [] exit_to_kernel_mode+0x38/0x210 arch/arm64/kernel/entry-common.c:92 hardirqs last disabled at (2228): [] __el1_irq arch/arm64/kernel/entry-common.c:435 [inline] hardirqs last disabled at (2228): [] el1_interrupt+0x24/0x50 arch/arm64/kernel/entry-common.c:460 softirqs last enabled at (2140): [] _stext+0x9ec/0x101c softirqs last disabled at (2011): [] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline] softirqs last disabled at (2011): [] invoke_softirq kernel/softirq.c:439 [inline] softirqs last disabled at (2011): [] __irq_exit_rcu+0x3d8/0x5d0 kernel/softirq.c:636 CPU: 0 PID: 14769 Comm: syz-executor.0 Not tainted 5.15.0-syzkaller-11190-gb5013d084e03 #0 Hardware name: linux,dummy-virt (DT) pstate: 00000005 (nzcv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : clear_page+0x14/0x28 arch/arm64/lib/clear_page.S:23 lr : clear_highpage include/linux/highmem.h:218 [inline] lr : kernel_init_free_pages.part.0+0x60/0xbc mm/page_alloc.c:1276 sp : ffff80001d2175f0 x29: ffff80001d2175f0 x28: 0000000000000000 x27: ffff00007fc13d80 x26: ffff00007fc13d80 x25: dfff800000000000 x24: 1fffff800002eee6 x23: fffffc0000177740 x22: fffffc0000000000 x21: ffff700002b11b7e x20: ffff80001588dbf0 x19: fffffc0000177740 x18: 0000000000000000 x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000 x14: 1ffff00003a42e7c x13: 0000000000000013 x12: ffff7f800002eee7 x11: 1fffff800002eee6 x10: ffff7f800002eee6 x9 : 0000000000000000 x8 : ffff600000bbba00 x7 : 0000000000000000 x6 : 000000000000003f x5 : 0000000000000040 x4 : 0000000000000000 x3 : 0000000000000004 x2 : 0000000000000004 x1 : 0000000000000040 x0 : ffff000005ddcd40 Call trace: clear_page+0x14/0x28 arch/arm64/lib/clear_page.S:21 kernel_init_free_pages mm/page_alloc.c:1273 [inline] post_alloc_hook+0x1ac/0x25c mm/page_alloc.c:2408 prep_new_page mm/page_alloc.c:2418 [inline] get_page_from_freelist+0x17a8/0x220c mm/page_alloc.c:4149 __alloc_pages+0x1a8/0x21f0 mm/page_alloc.c:5369 alloc_pages_vma+0xbc/0x55c mm/mempolicy.c:2152 alloc_zeroed_user_highpage_movable+0x9c/0xd0 arch/arm64/mm/fault.c:926 do_anonymous_page mm/memory.c:3760 [inline] handle_pte_fault mm/memory.c:4549 [inline] __handle_mm_fault+0xbf0/0x21e0 mm/memory.c:4686 handle_mm_fault+0x208/0x520 mm/memory.c:4784 __do_page_fault arch/arm64/mm/fault.c:499 [inline] do_page_fault+0x228/0x910 arch/arm64/mm/fault.c:599 do_translation_fault+0x1a4/0x210 arch/arm64/mm/fault.c:680 do_mem_abort+0x64/0x1c0 arch/arm64/mm/fault.c:813 el0_da+0x7c/0x2a0 arch/arm64/kernel/entry-common.c:489 el0t_64_sync_handler+0x168/0x1b0 arch/arm64/kernel/entry-common.c:624 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:572