watchdog: BUG: soft lockup - CPU#1 stuck for 23s! [syz.1.399:4398] Modules linked in: irq event stamp: 7850 hardirqs last enabled at (7849): [] __exit_to_kernel_mode arch/arm64/kernel/entry-common.c:85 [inline] hardirqs last enabled at (7849): [] exit_to_kernel_mode+0x38/0x118 arch/arm64/kernel/entry-common.c:95 hardirqs last disabled at (7850): [] __el1_irq arch/arm64/kernel/entry-common.c:580 [inline] hardirqs last disabled at (7850): [] el1_interrupt+0x24/0x54 arch/arm64/kernel/entry-common.c:598 softirqs last enabled at (7842): [] softirq_handle_end kernel/softirq.c:425 [inline] softirqs last enabled at (7842): [] handle_softirqs+0x88c/0xdb4 kernel/softirq.c:607 softirqs last disabled at (7837): [] __do_softirq+0x14/0x20 kernel/softirq.c:613 CPU: 1 UID: 0 PID: 4398 Comm: syz.1.399 Not tainted 6.15.0-syzkaller-08486-gf66bc387efbe #0 PREEMPT Hardware name: linux,dummy-virt (DT) pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : csd_lock_wait kernel/smp.c:340 [inline] pc : smp_call_function_many_cond+0x38c/0x1528 kernel/smp.c:885 lr : csd_lock_wait kernel/smp.c:340 [inline] lr : smp_call_function_many_cond+0x38c/0x1528 kernel/smp.c:885 sp : ffff80008dfc78d0 x29: ffff80008dfc78d0 x28: 1fffe0000d418a21 x27: dfff800000000000 x26: 0000000000000000 x25: dfff800000000000 x24: ffff800087141528 x23: 0000000000000000 x22: ffffffffffffffff x21: ffff00006a0c5100 x20: ffff00006a0a7e68 x19: 1ffff00011bf8f38 x18: 0000000000000000 x17: 0000000000000000 x16: 0000000000000000 x15: 00000000200001c0 x14: 0000000000000000 x13: 0000000000000000 x12: ffff60000d414fce x11: 1fffe0000d414fcd x10: ffff60000d414fcd x9 : dfff800000000000 x8 : ffff00006a0a7e6b x7 : 0000000000000001 x6 : ffff60000d414fcd x5 : ffff00006a0a7e68 x4 : ffff60000d414fce x3 : ffff80008045b7c8 x2 : 0000000000000000 x1 : 0000000000000004 x0 : 0000000000000001 Call trace: csd_lock_wait kernel/smp.c:340 [inline] (P) smp_call_function_many_cond+0x38c/0x1528 kernel/smp.c:885 (P) smp_call_function_many kernel/smp.c:909 [inline] smp_call_function kernel/smp.c:931 [inline] kick_all_cpus_sync+0x3c/0x94 kernel/smp.c:1076 arch_jump_label_transform_apply+0x10/0x1c arch/arm64/kernel/jump_label.c:34 __jump_label_update+0x1cc/0x2e4 kernel/jump_label.c:521 jump_label_update+0x270/0x3f0 kernel/jump_label.c:919 static_key_slow_inc_cpuslocked kernel/jump_label.c:168 [inline] static_key_slow_inc_cpuslocked+0x7c/0x100 kernel/jump_label.c:151 static_key_slow_inc+0x20/0x3c kernel/jump_label.c:191 io_uring_create io_uring/io_uring.c:3683 [inline] io_uring_setup+0x11e4/0x1914 io_uring/io_uring.c:3822 __do_sys_io_uring_setup io_uring/io_uring.c:3856 [inline] __se_sys_io_uring_setup io_uring/io_uring.c:3847 [inline] __arm64_sys_io_uring_setup+0x90/0x1a0 io_uring/io_uring.c:3847 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x6c/0x258 arch/arm64/kernel/syscall.c:49 el0_svc_common.constprop.0+0xac/0x230 arch/arm64/kernel/syscall.c:132 do_el0_svc+0x40/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x50/0x198 arch/arm64/kernel/entry-common.c:767 el0t_64_sync_handler+0x10c/0x138 arch/arm64/kernel/entry-common.c:786 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600 Sending NMI from CPU 1 to CPUs 0: