watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [syz-executor.1:14783] Modules linked in: irq event stamp: 3434 hardirqs last enabled at (3433): [] __exit_to_kernel_mode arch/arm64/kernel/entry-common.c:81 [inline] hardirqs last enabled at (3433): [] exit_to_kernel_mode+0x38/0x230 arch/arm64/kernel/entry-common.c:91 hardirqs last disabled at (3434): [] enter_el1_irq_or_nmi+0x10/0x20 arch/arm64/kernel/entry-common.c:227 softirqs last enabled at (3390): [] _stext+0x964/0xff8 softirqs last disabled at (3291): [] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline] softirqs last disabled at (3291): [] invoke_softirq kernel/softirq.c:439 [inline] softirqs last disabled at (3291): [] __irq_exit_rcu+0x208/0x4f0 kernel/softirq.c:636 CPU: 0 PID: 14783 Comm: syz-executor.1 Not tainted 5.15.0-rc5-syzkaller-00025-gfa5878760579 #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:181 [inline] lr : kernel_init_free_pages.part.0+0x6c/0x17c mm/page_alloc.c:1278 sp : ffff80001a8c75d0 x29: ffff80001a8c75d0 x28: 0000000000000000 x27: ffff00007fc11ec0 x26: ffff00001181aef8 x25: ffff6000023035df x24: 00000000000014b8 x23: ffff000011819a40 x22: fffffc0000173f40 x21: ffff8000157baf58 x20: dfff800000000000 x19: fffffc0000173f00 x18: 0000000000000000 x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000 x14: 1ffff00003518e84 x13: 0000000000000013 x12: ffff7f800002e7e7 x11: 1fffff800002e7e6 x10: ffff7f800002e7e6 x9 : 0000000000000000 x8 : ffff600000b9fa00 x7 : 0000000000000000 x6 : 000000000000003f x5 : 0000000000000040 x4 : 1ffff00003067da8 x3 : 1fffe00002303349 x2 : 0000000000000004 x1 : 0000000000000040 x0 : ffff000005cfc640 Call trace: clear_page+0x14/0x28 arch/arm64/lib/clear_page.S:21 kernel_init_free_pages mm/page_alloc.c:1275 [inline] post_alloc_hook+0x1ac/0x25c mm/page_alloc.c:2414 prep_new_page mm/page_alloc.c:2424 [inline] get_page_from_freelist+0x1844/0x2314 mm/page_alloc.c:4153 __alloc_pages+0x1a8/0x21d0 mm/page_alloc.c:5375 alloc_pages_vma+0xbc/0x560 mm/mempolicy.c:2158 alloc_zeroed_user_highpage_movable+0x9c/0xd0 arch/arm64/mm/fault.c:926 do_anonymous_page mm/memory.c:3768 [inline] handle_pte_fault mm/memory.c:4557 [inline] __handle_mm_fault+0xbc4/0x2210 mm/memory.c:4694 handle_mm_fault+0x1dc/0x4f0 mm/memory.c:4792 __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/0x2b0 arch/arm64/kernel/entry-common.c:481 el0t_64_sync_handler+0x168/0x1b0 arch/arm64/kernel/entry-common.c:616 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:572