watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [syz-executor.3:4795] Modules linked in: irq event stamp: 37069 hardirqs last enabled at (37068): [] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:168 [inline] hardirqs last enabled at (37068): [] _raw_spin_unlock_irq+0x9c/0x134 kernel/locking/spinlock.c:202 hardirqs last disabled at (37069): [] enter_el1_irq_or_nmi+0x10/0x1c arch/arm64/kernel/entry-common.c:227 softirqs last enabled at (2468): [] softirq_handle_end kernel/softirq.c:401 [inline] softirqs last enabled at (2468): [] __do_softirq+0xb5c/0xe20 kernel/softirq.c:587 softirqs last disabled at (3331): [] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline] softirqs last disabled at (3331): [] invoke_softirq kernel/softirq.c:439 [inline] softirqs last disabled at (3331): [] __irq_exit_rcu+0x28c/0x534 kernel/softirq.c:636 CPU: 0 PID: 4795 Comm: syz-executor.3 Not tainted 5.15.118-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 pstate: 00400005 (nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : pie_calculate_probability+0x1a4/0x7bc net/sched/sch_pie.c:343 lr : pie_calculate_probability+0x124/0x7bc sp : ffff800008007a60 x29: ffff800008007a90 x28: 0000000225c17d04 x27: 0019999999999999 x26: 0000000000000000 x25: ffff80001d92e890 x24: 0000000000000000 x23: 00000015798ee228 x22: ffff0000cd5b6300 x21: 0000000000000000 x20: 1ffff00003b25d12 x19: ffff80001d92e870 x18: 0000000000000501 x17: ff8080000fd29abc x16: ffff80000830309c x15: ffff80000fd29abc x14: 1ffff0000291e06a x13: ffffffffffffffff x12: 0000000000000100 x11: ff808000100973ec x10: 0000000000000000 x9 : 0000000000000000 x8 : 0019999999999998 x7 : ffff80001009f6a0 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff8000083031cc x2 : 0000000000000000 x1 : 0000000000000000 x0 : 0019999999999999 Call trace: pie_calculate_probability+0x1a4/0x7bc net/sched/sch_pie.c:343 fq_pie_timer+0x110/0x248 net/sched/sch_fq_pie.c:389 call_timer_fn+0x19c/0x8f0 kernel/time/timer.c:1421 expire_timers kernel/time/timer.c:1466 [inline] __run_timers+0x554/0x718 kernel/time/timer.c:1737 run_timer_softirq+0x7c/0x114 kernel/time/timer.c:1750 __do_softirq+0x344/0xe20 kernel/softirq.c:558 do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline] invoke_softirq kernel/softirq.c:439 [inline] __irq_exit_rcu+0x28c/0x534 kernel/softirq.c:636 irq_exit+0x14/0x88 kernel/softirq.c:660 handle_domain_irq+0xf4/0x178 kernel/irq/irqdesc.c:710 gic_handle_irq+0x78/0x1c8 drivers/irqchip/irq-gic-v3.c:758 call_on_irq_stack+0x24/0x4c arch/arm64/kernel/entry.S:899 do_interrupt_handler+0x74/0x94 arch/arm64/kernel/entry-common.c:267 el1_interrupt+0x30/0x58 arch/arm64/kernel/entry-common.c:442 el1h_64_irq_handler+0x18/0x24 arch/arm64/kernel/entry-common.c:458 el1h_64_irq+0x78/0x7c arch/arm64/kernel/entry.S:580 arch_local_irq_restore arch/arm64/include/asm/irqflags.h:122 [inline] rmqueue_pcplist mm/page_alloc.c:3663 [inline] rmqueue mm/page_alloc.c:3690 [inline] get_page_from_freelist+0x794/0x2cd0 mm/page_alloc.c:4156 __alloc_pages+0x20c/0x674 mm/page_alloc.c:5421 alloc_pages+0x390/0x634 vm_area_alloc_pages mm/vmalloc.c:2864 [inline] __vmalloc_area_node mm/vmalloc.c:2920 [inline] __vmalloc_node_range+0x538/0x8e0 mm/vmalloc.c:3025 __vmalloc_node+0xb8/0xe4 mm/vmalloc.c:3075 kvmalloc_node+0x180/0x204 mm/util.c:634 kvmalloc include/linux/mm.h:805 [inline] kvmalloc_array include/linux/mm.h:823 [inline] kvcalloc include/linux/mm.h:828 [inline] fq_pie_init+0x340/0x714 net/sched/sch_fq_pie.c:430 qdisc_create+0x6fc/0xf44 net/sched/sch_api.c:1264 tc_modify_qdisc+0x8dc/0x1344 rtnetlink_rcv_msg+0xa74/0xdac net/core/rtnetlink.c:5593 netlink_rcv_skb+0x20c/0x3b8 net/netlink/af_netlink.c:2504 rtnetlink_rcv+0x28/0x38 net/core/rtnetlink.c:5611 netlink_unicast_kernel net/netlink/af_netlink.c:1330 [inline] netlink_unicast+0x664/0x938 net/netlink/af_netlink.c:1356 netlink_sendmsg+0x844/0xb38 net/netlink/af_netlink.c:1923 sock_sendmsg_nosec net/socket.c:704 [inline] sock_sendmsg net/socket.c:724 [inline] ____sys_sendmsg+0x584/0x870 net/socket.c:2412 ___sys_sendmsg+0x214/0x294 net/socket.c:2466 __sys_sendmsg net/socket.c:2495 [inline] __do_sys_sendmsg net/socket.c:2504 [inline] __se_sys_sendmsg net/socket.c:2502 [inline] __arm64_sys_sendmsg+0x1ac/0x25c net/socket.c:2502 __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+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:596 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:614 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584