rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 0-.... } 4156 jiffies s: 1565 root: 0x1/.
rcu: blocking rcu_node structures (internal RCU debug):
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 4389 Comm: syz.3.18 Tainted: G        W          6.1.122-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:lockdep_hardirqs_on_prepare+0x46a/0x7a0 kernel/locking/lockdep.c:4317
Code: ff df b8 ff ff ff ff 65 0f c1 05 e1 0b 98 7e 83 f8 01 4c 8b 7c 24 18 75 34 48 c7 44 24 20 0e 36 e0 45 4a c7 04 3a 00 00 00 00 <65> 48 8b 04 25 28 00 00 00 48 3b 44 24 60 0f 85 c5 02 00 00 48 8d
RSP: 0018:ffffc900000072c0 EFLAGS: 00000046
RAX: 0000000000000001 RBX: ffff88802605c640 RCX: ffffffff816b123a
RDX: dffffc0000000000 RSI: ffffffff8b0c14c0 RDI: ffffffff8b5e67c0
RBP: ffffc90000007370 R08: dffffc0000000000 R09: fffffbfff2249c6a
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88802605c6a8
R13: 0000000000000001 R14: ffff88802605c658 R15: 1ffff92000000e5c
FS:  00007f4301a2b6c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f43019e9d58 CR3: 000000002fa12000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 trace_hardirqs_on+0x34/0x40 kernel/trace/trace_preemptirq.c:49
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0010:get_current arch/x86/include/asm/current.h:15 [inline]
RIP: 0010:get_stack_info_noinstr+0x21/0x130 arch/x86/kernel/dumpstack_64.c:176
Code: cc cc cc cc cc cc cc cc cc 55 41 57 41 56 41 54 53 49 89 d4 48 89 f3 48 89 fd e8 1a 01 00 00 41 b6 01 84 c0 0f 85 ce 00 00 00 <65> 48 8b 05 37 36 50 75 48 39 d8 74 08 45 31 f6 e9 b9 00 00 00 48
RSP: 0018:ffffc90000007438 EFLAGS: 00000246
RAX: 1ffff92000000e00 RBX: ffff88802605bb80 RCX: ffffc90004728000
RDX: ffffc90000007500 RSI: ffffc90004730000 RDI: ffffc900000074a0
RBP: ffffc900000074a0 R08: dffffc0000000000 R09: ffffc90000007500
R10: 0000000000000000 R11: dffffc0000000001 R12: ffffc90000007500
R13: ffffc90000007528 R14: ffffc90000007501 R15: 1ffff92000000ea5
 get_stack_info+0x37/0xf0 arch/x86/kernel/dumpstack_64.c:199
 __unwind_start+0x437/0x720 arch/x86/kernel/unwind_orc.c:686
 unwind_start arch/x86/include/asm/unwind.h:64 [inline]
 arch_stack_walk+0xdb/0x140 arch/x86/kernel/stacktrace.c:24
 stack_trace_save+0x113/0x1c0 kernel/stacktrace.c:122
 kasan_save_stack mm/kasan/common.c:45 [inline]
 kasan_set_track+0x4b/0x70 mm/kasan/common.c:52
 __kasan_slab_alloc+0x65/0x70 mm/kasan/common.c:328
 kasan_slab_alloc include/linux/kasan.h:201 [inline]
 slab_post_alloc_hook+0x52/0x3a0 mm/slab.h:737
 slab_alloc_node mm/slub.c:3398 [inline]
 kmem_cache_alloc_node+0x136/0x310 mm/slub.c:3443
 __alloc_skb+0xde/0x670 net/core/skbuff.c:505
 alloc_skb include/linux/skbuff.h:1271 [inline]
 ndisc_alloc_skb+0xee/0x2c0 net/ipv6/ndisc.c:424
 ndisc_send_rs+0x269/0x6a0 net/ipv6/ndisc.c:705
 addrconf_rs_timer+0x357/0x610 net/ipv6/addrconf.c:3982
 call_timer_fn+0x1ad/0x6b0 kernel/time/timer.c:1504
 expire_timers kernel/time/timer.c:1549 [inline]
 __run_timers+0x67c/0x890 kernel/time/timer.c:1820
 run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1833
 handle_softirqs+0x2ee/0xa40 kernel/softirq.c:571
 __do_softirq kernel/softirq.c:605 [inline]
 invoke_softirq kernel/softirq.c:445 [inline]
 __irq_exit_rcu+0x157/0x240 kernel/softirq.c:654
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:666
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1118 [inline]
 sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1118
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0010:preempt_schedule_irq+0xf2/0x1c0 kernel/sched/core.c:6870
Code: 89 f5 49 c1 ed 03 eb 0d 48 f7 03 08 00 00 00 0f 84 97 00 00 00 bf 01 00 00 00 e8 09 7c a3 f6 e8 f4 4a d6 f6 fb bf 01 00 00 00 <e8> 79 b4 ff ff 43 80 7c 3d 00 00 74 08 4c 89 f7 e8 19 1e 27 f7 48
RSP: 0018:ffffc9000472fba0 EFLAGS: 00000286
RAX: fdd4c3d2c3c14000 RBX: 1ffff920008e5f7c RCX: ffffffff97355103
RDX: dffffc0000000000 RSI: ffffffff8b0c0340 RDI: 0000000000000001
RBP: ffffc9000472fc50 R08: ffffffff90163000 R09: ffffffff90163008
R10: ffffffff90163018 R11: ffffffff90163010 R12: 1ffff920008e5f74
R13: 1ffff920008e5f78 R14: ffffc9000472fbc0 R15: dffffc0000000000
 irqentry_exit+0x53/0x80 kernel/entry/common.c:439
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0010:tcp_init_sock+0x380/0x800 net/ipv4/tcp.c:447
Code: 00 00 74 08 4c 89 f7 e8 be b9 b2 f8 bb 40 07 00 00 49 03 1e 48 89 d8 48 c1 e8 03 42 0f b6 04 20 84 c0 0f 85 a6 03 00 00 8b 1b <49> 8d bd 68 09 00 00 48 89 f8 48 c1 e8 03 42 0f b6 04 20 84 c0 0f
RSP: 0018:ffffc9000472fd10 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000080000
RDX: ffffc9000cb8a000 RSI: 0000000000000624 RDI: ffff88807f8fc60c
RBP: 1ffff1100ff1f7ae R08: ffffffff817986c3 R09: ffff88807f8fc770
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: ffff88807f8fbd40 R14: ffff88807f8fbd70 R15: ffff88807f8fc68c
 tcp_v4_init_sock+0x1d/0x70 net/ipv4/tcp_ipv4.c:2249
 inet_create+0xb5b/0xed0 net/ipv4/af_inet.c:379
 __sock_create+0x488/0x930 net/socket.c:1550
 sock_create net/socket.c:1606 [inline]
 __sys_socket_create net/socket.c:1643 [inline]
 __sys_socket+0x136/0x3a0 net/socket.c:1671
 __do_sys_socket net/socket.c:1684 [inline]
 __se_sys_socket net/socket.c:1682 [inline]
 __x64_sys_socket+0x76/0x80 net/socket.c:1682
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f4300b85d29
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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f4301a2b038 EFLAGS: 00000246 ORIG_RAX: 0000000000000029
RAX: ffffffffffffffda RBX: 00007f4300d75fa0 RCX: 00007f4300b85d29
RDX: 0000000000000000 RSI: 0200000000000001 RDI: 0000000000000002
RBP: 00007f4300c01b08 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f4300d75fa0 R15: 00007ffdb0ca83f8
 </TASK>