watchdog: BUG: soft lockup - CPU#0 stuck for 24s! [syz-executor.1:17447] Modules linked in: irq event stamp: 694 hardirqs last enabled at (693): [] __exit_to_kernel_mode arch/arm64/kernel/entry-common.c:82 [inline] hardirqs last enabled at (693): [] exit_to_kernel_mode+0x38/0x210 arch/arm64/kernel/entry-common.c:92 hardirqs last disabled at (694): [] __el1_irq arch/arm64/kernel/entry-common.c:435 [inline] hardirqs last disabled at (694): [] el1_interrupt+0x24/0x50 arch/arm64/kernel/entry-common.c:460 softirqs last enabled at (564): [] _stext+0x9ec/0x101c softirqs last disabled at (479): [] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline] softirqs last disabled at (479): [] invoke_softirq kernel/softirq.c:439 [inline] softirqs last disabled at (479): [] __irq_exit_rcu+0x3d8/0x5d0 kernel/softirq.c:636 CPU: 0 PID: 17447 Comm: syz-executor.1 Not tainted 5.15.0-syzkaller-12871-ga9b9669d9822 #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 : ffff800019bc7980 x29: ffff800019bc7980 x28: ffff800019bc7c90 x27: ffff000010fb5630 x26: 1fffe000021f6ace x25: 1ffff00003378f99 x24: 1ffff00003378f92 x23: ffff00000e29ae00 x22: fffffc0000b7b900 x21: fffffc0000177f00 x20: ffff000005dfc000 x19: ffff00002dee4000 x18: 0000000000000000 x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000 x14: 0000000000000000 x13: 0000000000000000 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000000000 x9 : 0000000000000000 x8 : 0000000000000000 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000000000 x2 : 0000000000000000 x1 : ffff00002dee4200 x0 : ffff000005dfc280 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 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