watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [syz.3.133:4515] Modules linked in: irq event stamp: 4514 hardirqs last enabled at (4513): [] __exit_to_kernel_mode arch/arm64/kernel/entry-common.c:81 [inline] hardirqs last enabled at (4513): [] exit_to_kernel_mode+0xe0/0x168 arch/arm64/kernel/entry-common.c:91 hardirqs last disabled at (4514): [] enter_el1_irq_or_nmi+0x10/0x1c arch/arm64/kernel/entry-common.c:227 softirqs last enabled at (488): [] softirq_handle_end kernel/softirq.c:419 [inline] softirqs last enabled at (488): [] handle_softirqs+0xa4c/0xbf0 kernel/softirq.c:604 softirqs last disabled at (451): [] __do_softirq kernel/softirq.c:610 [inline] softirqs last disabled at (451): [] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline] softirqs last disabled at (451): [] invoke_softirq kernel/softirq.c:457 [inline] softirqs last disabled at (451): [] __irq_exit_rcu+0x240/0x440 kernel/softirq.c:659 CPU: 0 PID: 4515 Comm: syz.3.133 Not tainted 5.15.189-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : csd_lock_wait kernel/smp.c:440 [inline] pc : smp_call_function_many_cond+0xe00/0xeb0 kernel/smp.c:969 lr : csd_lock_wait kernel/smp.c:440 [inline] lr : smp_call_function_many_cond+0xe18/0xeb0 kernel/smp.c:969 sp : ffff80001ff27710 x29: ffff80001ff27760 x28: ffff80001416d000 x27: 0000000000000001 x26: 0000000000000011 x25: ffff0001a10d9980 x24: ffff800014171000 x23: 1fffe0003421b330 x22: dfff800000000000 x21: ffff0001a10ff108 x20: ffff80001435d500 x19: 0000000000000001 x18: 0000000000000000 x17: 0000000000000002 x16: ffff8000111bc798 x15: 0000000000000001 x14: 0000000000ff0100 x13: ffffffffffffffff x12: 0000000000080000 x11: 000000000007ffff x10: ffff8000255fa000 x9 : 0000000000000000 x8 : 0000000000000011 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000004 x4 : 0000000000000000 x3 : ffff8000083cda8c x2 : 0000000000000000 x1 : 0000000000000004 x0 : 0000000000000001 Call trace: __cmpwait_case_32 arch/arm64/include/asm/cmpxchg.h:252 [inline] __cmpwait arch/arm64/include/asm/cmpxchg.h:278 [inline] csd_lock_wait kernel/smp.c:440 [inline] smp_call_function_many_cond+0xe00/0xeb0 kernel/smp.c:969 smp_call_function_many kernel/smp.c:993 [inline] smp_call_function kernel/smp.c:1015 [inline] kick_all_cpus_sync+0x40/0xa0 kernel/smp.c:1159 flush_icache_range arch/arm64/include/asm/cacheflush.h:103 [inline] bpf_flush_icache arch/arm64/net/bpf_jit_comp.c:1037 [inline] bpf_int_jit_compile+0x48c/0xa54 arch/arm64/net/bpf_jit_comp.c:1160 bpf_prog_select_runtime+0x634/0x8fc kernel/bpf/core.c:1934 bpf_migrate_filter net/core/filter.c:1307 [inline] bpf_prepare_filter+0xd58/0xeb4 net/core/filter.c:1355 bpf_prog_create_from_user+0x2f0/0x490 net/core/filter.c:1449 seccomp_prepare_filter kernel/seccomp.c:669 [inline] seccomp_prepare_user_filter kernel/seccomp.c:706 [inline] seccomp_set_mode_filter kernel/seccomp.c:1834 [inline] do_seccomp+0x9b8/0x15cc kernel/seccomp.c:1954 prctl_set_seccomp+0x60/0x7c kernel/seccomp.c:2007 __do_sys_prctl kernel/sys.c:2380 [inline] __se_sys_prctl kernel/sys.c:2298 [inline] __arm64_sys_prctl+0x68c/0xf14 kernel/sys.c:2298 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x78/0x1e0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584