watchdog: BUG: soft lockup - CPU#1 stuck for 23s! [syz-executor.0:24829] Modules linked in: irq event stamp: 558 hardirqs last enabled at (557): [] __exit_to_kernel_mode arch/arm64/kernel/entry-common.c:82 [inline] hardirqs last enabled at (557): [] exit_to_kernel_mode+0x38/0x210 arch/arm64/kernel/entry-common.c:92 hardirqs last disabled at (558): [] __el1_irq arch/arm64/kernel/entry-common.c:435 [inline] hardirqs last disabled at (558): [] el1_interrupt+0x24/0x50 arch/arm64/kernel/entry-common.c:460 softirqs last enabled at (392): [] _stext+0x9ec/0x101c softirqs last disabled at (379): [] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline] softirqs last disabled at (379): [] invoke_softirq kernel/softirq.c:439 [inline] softirqs last disabled at (379): [] __irq_exit_rcu+0x3d8/0x5d0 kernel/softirq.c:636 CPU: 1 PID: 24829 Comm: syz-executor.0 Not tainted 5.15.0-syzkaller-11387-ge851dfae4371 #0 Hardware name: linux,dummy-virt (DT) pstate: 00000005 (nzcv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : copy_page+0x38/0xd0 arch/arm64/lib/copy_page.S:40 lr : copy_highpage+0x80/0x170 arch/arm64/mm/copypage.c:22 sp : ffff800019e97810 x29: ffff800019e97810 x28: ffff800019e97b20 x27: ffff00001492ee70 x26: 1fffe00002925dd6 x25: 1ffff000033d2f6b x24: 1ffff000033d2f64 x23: ffff00000bd61700 x22: fffffc0000710840 x21: fffffc0000177700 x20: ffff000005ddc000 x19: ffff00001c421000 x18: 0000000000000000 x17: 0000000000000000 x16: 0000000000000000 x15: 000000001b5082e0 x14: 0000000000000000 x13: 000000001b507e30 x12: 0000000000516da8 x11: 0000000000000000 x10: 0000ffffa2a7f798 x9 : 000000001b508310 x8 : 0000ffffa2a7f000 x7 : 00000000000004e1 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 000000000000002f x3 : 0000000000000021 x2 : 0000000000000000 x1 : ffff00001c421e80 x0 : ffff000005ddcf00 Call trace: copy_page+0x38/0xd0 arch/arm64/lib/copy_page.S:38 copy_user_highpage+0x18/0x50 arch/arm64/mm/copypage.c:43 cow_user_page mm/memory.c:2741 [inline] wp_page_copy+0x1dc/0x16d0 mm/memory.c:2994 do_wp_page+0x1d8/0xbf0 mm/memory.c:3299 handle_pte_fault mm/memory.c:4569 [inline] __handle_mm_fault+0xd88/0x21e0 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_mem_abort+0x64/0x1c0 arch/arm64/mm/fault.c:813 el1_abort+0x3c/0x60 arch/arm64/kernel/entry-common.c:346 el1h_64_sync_handler+0xb4/0xd0 arch/arm64/kernel/entry-common.c:397 el1h_64_sync+0x78/0x7c arch/arm64/kernel/entry.S:567 schedule_tail+0x198/0x1f0 kernel/sched/core.c:4909 ret_from_fork+0x4/0x20 arch/arm64/kernel/entry.S:753