rcu: INFO: rcu_preempt self-detected stall on CPU rcu: 0-....: (1 GPs behind) idle=f9f/1/0x4000000000000000 softirq=41474/41482 fqs=5146 (t=10500 jiffies g=62117 q=174) NMI backtrace for cpu 0 CPU: 0 PID: 11212 Comm: syz-executor.5 Not tainted 5.17.0-rc8-syzkaller-00077-g14702b3b2438 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106 nmi_cpu_backtrace.cold+0x47/0x144 lib/nmi_backtrace.c:111 nmi_trigger_cpumask_backtrace+0x1e6/0x230 lib/nmi_backtrace.c:62 trigger_single_cpu_backtrace include/linux/nmi.h:164 [inline] rcu_dump_cpu_stacks+0x25e/0x3f0 kernel/rcu/tree_stall.h:343 print_cpu_stall kernel/rcu/tree_stall.h:604 [inline] check_cpu_stall kernel/rcu/tree_stall.h:688 [inline] rcu_pending kernel/rcu/tree.c:3919 [inline] rcu_sched_clock_irq.cold+0x402/0x755 kernel/rcu/tree.c:2617 update_process_times+0x16d/0x200 kernel/time/timer.c:1785 tick_sched_handle+0x9b/0x180 kernel/time/tick-sched.c:226 tick_sched_timer+0x1b0/0x2d0 kernel/time/tick-sched.c:1428 __run_hrtimer kernel/time/hrtimer.c:1685 [inline] __hrtimer_run_queues+0x1c0/0xe50 kernel/time/hrtimer.c:1749 hrtimer_interrupt+0x31c/0x790 kernel/time/hrtimer.c:1811 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1086 [inline] __sysvec_apic_timer_interrupt+0x146/0x530 arch/x86/kernel/apic/apic.c:1103 sysvec_apic_timer_interrupt+0x8e/0xc0 arch/x86/kernel/apic/apic.c:1097 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638 RIP: 0010:kasan_check_range+0x15/0x180 mm/kasan/generic.c:188 Code: e4 ff ff 89 43 08 5b 5d 41 5c c3 66 2e 0f 1f 84 00 00 00 00 00 48 85 f6 0f 84 3c 01 00 00 49 89 f9 41 54 44 0f b6 c2 49 01 f1 <55> 53 0f 82 18 01 00 00 48 b8 ff ff ff ff ff 7f ff ff 48 39 c7 0f RSP: 0018:ffffc900057d6f60 EFLAGS: 00000286 RAX: 0000000000000001 RBX: 1ffff92000afadef RCX: ffffffff815e06b0 RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffffc900057d6f98 RBP: ffff88806e2277c0 R08: 0000000000000001 R09: ffffc900057d6f9c R10: ffffed100dc44ef8 R11: 0000000000000000 R12: ffff88806e2277c8 R13: ffff88806e2277d0 R14: 00000000000001df R15: ffff88804ab4ccc0 instrument_atomic_read_write include/linux/instrumented.h:101 [inline] atomic_try_cmpxchg_acquire include/linux/atomic/atomic-instrumented.h:542 [inline] queued_spin_lock include/asm-generic/qspinlock.h:82 [inline] do_raw_spin_lock+0x120/0x2b0 kernel/locking/spinlock_debug.c:115 spin_lock_bh include/linux/spinlock.h:354 [inline] batadv_tt_local_purge_pending_clients+0x112/0x4d0 net/batman-adv/translation-table.c:3655 batadv_tt_local_resize_to_mtu+0x96/0x130 net/batman-adv/translation-table.c:3958 batadv_hardif_activate_interface.part.0.cold+0x65/0x1ba net/batman-adv/hard-interface.c:662 batadv_hardif_activate_interface net/batman-adv/hard-interface.c:753 [inline] batadv_hardif_enable_interface+0xa1c/0xb20 net/batman-adv/hard-interface.c:745 batadv_softif_slave_add+0x64/0x130 net/batman-adv/soft-interface.c:839 do_set_master+0x1c8/0x220 net/core/rtnetlink.c:2534 __rtnl_newlink+0x13b0/0x1760 net/core/rtnetlink.c:3500 rtnl_newlink+0x64/0xa0 net/core/rtnetlink.c:3531 rtnetlink_rcv_msg+0x413/0xb80 net/core/rtnetlink.c:5596 netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2494 netlink_unicast_kernel net/netlink/af_netlink.c:1317 [inline] netlink_unicast+0x539/0x7e0 net/netlink/af_netlink.c:1343 netlink_sendmsg+0x904/0xe00 net/netlink/af_netlink.c:1919 sock_sendmsg_nosec net/socket.c:705 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:725 ____sys_sendmsg+0x6e8/0x810 net/socket.c:2413 ___sys_sendmsg+0xf3/0x170 net/socket.c:2467 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2496 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f3e1a001049 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f3e18955168 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f3e1a114030 RCX: 00007f3e1a001049 RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000006 RBP: 00007f3e1a05b08d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f3e1a647b1f R14: 00007f3e18955300 R15: 0000000000022000 ---------------- Code disassembly (best guess): 0: e4 ff in $0xff,%al 2: ff 89 43 08 5b 5d decl 0x5d5b0843(%rcx) 8: 41 5c pop %r12 a: c3 retq b: 66 2e 0f 1f 84 00 00 nopw %cs:0x0(%rax,%rax,1) 12: 00 00 00 15: 48 85 f6 test %rsi,%rsi 18: 0f 84 3c 01 00 00 je 0x15a 1e: 49 89 f9 mov %rdi,%r9 21: 41 54 push %r12 23: 44 0f b6 c2 movzbl %dl,%r8d 27: 49 01 f1 add %rsi,%r9 * 2a: 55 push %rbp <-- trapping instruction 2b: 53 push %rbx 2c: 0f 82 18 01 00 00 jb 0x14a 32: 48 b8 ff ff ff ff ff movabs $0xffff7fffffffffff,%rax 39: 7f ff ff 3c: 48 39 c7 cmp %rax,%rdi 3f: 0f .byte 0xf