watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [syz-executor:4029] Modules linked in: irq event stamp: 141912 hardirqs last enabled at (141911): [] __exit_to_kernel_mode arch/arm64/kernel/entry-common.c:81 [inline] hardirqs last enabled at (141911): [] exit_to_kernel_mode+0xe0/0x168 arch/arm64/kernel/entry-common.c:91 hardirqs last disabled at (141912): [] enter_el1_irq_or_nmi+0x10/0x1c arch/arm64/kernel/entry-common.c:227 softirqs last enabled at (137536): [] softirq_handle_end kernel/softirq.c:401 [inline] softirqs last enabled at (137536): [] handle_softirqs+0xa4c/0xbf0 kernel/softirq.c:586 softirqs last disabled at (137483): [] __do_softirq kernel/softirq.c:592 [inline] softirqs last disabled at (137483): [] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline] softirqs last disabled at (137483): [] invoke_softirq kernel/softirq.c:439 [inline] softirqs last disabled at (137483): [] __irq_exit_rcu+0x240/0x440 kernel/softirq.c:641 CPU: 0 PID: 4029 Comm: syz-executor Not tainted 5.15.184-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 pstate: 00400005 (nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : queued_spin_lock_slowpath+0x13c/0x798 kernel/locking/qspinlock.c:382 lr : queued_spin_lock_slowpath+0x148/0x798 kernel/locking/qspinlock.c:382 sp : ffff80001f1b6b60 x29: ffff80001f1b6c00 x28: ffff8000140a1008 x27: 1ffff0000287a7bd x26: 0000000000000001 x25: ffff0000e5e70000 x24: dfff800000000000 x23: ffff700003e36d70 x22: 1ffff00003e36d90 x21: ffff8000143d3de8 x20: ffff8000143d3df0 x19: ffff8000143d3de0 x18: 0000000000000000 x17: 0000000000000000 x16: ffff8000082d465c x15: 0000000000000000 x14: 00000000ffff8000 x13: 1ffff0000282a06b x12: 0000000000000001 x11: 1ffff0000287a7bc x10: 0000000000000000 x9 : 0000000000000000 x8 : 0000000000000101 x7 : ffff80000879c09c x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff8000082d3960 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] queued_spin_lock_slowpath+0x13c/0x798 kernel/locking/qspinlock.c:382 queued_spin_lock include/asm-generic/qspinlock.h:85 [inline] do_raw_spin_lock+0x2ec/0x2f0 kernel/locking/spinlock_debug.c:115 __raw_spin_lock include/linux/spinlock_api_smp.h:143 [inline] _raw_spin_lock+0xb8/0x10c kernel/locking/spinlock.c:154 spin_lock include/linux/spinlock.h:363 [inline] preload_this_cpu_lock mm/vmalloc.c:1500 [inline] alloc_vmap_area+0x268/0x1698 mm/vmalloc.c:1542 __get_vm_area_node+0x17c/0x2e8 mm/vmalloc.c:2423 __vmalloc_node_range+0xe8/0x8d8 mm/vmalloc.c:3020 __vmalloc_node mm/vmalloc.c:3080 [inline] vmalloc+0x118/0x190 mm/vmalloc.c:3113 ebt_register_table+0x1c0/0xd88 net/bridge/netfilter/ebtables.c:1206 frame_filter_table_init+0x30/0x40 net/bridge/netfilter/ebtable_filter.c:83 find_inlist_lock_noload+0x178/0x260 net/bridge/netfilter/ebtables.c:343 find_inlist_lock net/bridge/netfilter/ebtables.c:370 [inline] find_table_lock net/bridge/netfilter/ebtables.c:379 [inline] do_ebt_get_ctl+0x3fc/0x21ec net/bridge/netfilter/ebtables.c:2467 nf_getsockopt+0x264/0x284 net/netfilter/nf_sockopt.c:116 ip_getsockopt+0xffc/0x158c net/ipv4/ip_sockglue.c:1797 tcp_getsockopt+0x214/0x2e74 net/ipv4/tcp.c:4313 sock_common_getsockopt+0xa8/0xc4 net/core/sock.c:3418 __sys_getsockopt+0x1e0/0x45c net/socket.c:2247 __do_sys_getsockopt net/socket.c:2262 [inline] __se_sys_getsockopt net/socket.c:2259 [inline] __arm64_sys_getsockopt+0xb8/0xd4 net/socket.c:2259 __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