rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 1-.... } 3013 jiffies s: 1773 root: 0x2/. rcu: blocking rcu_node structures (internal RCU debug): Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 3859 Comm: syz.3.47 Not tainted 6.1.110-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 RIP: 0010:ipv6_get_ifaddr+0x1b9/0x770 net/ipv6/addrconf.c:2050 Code: 13 8c be 19 03 00 00 48 c7 c2 40 45 13 8c e8 be 1f 0a f8 41 c1 ef 18 49 81 c6 40 0c 00 00 4c 89 f0 48 c1 e8 03 42 80 3c 28 00 <74> 08 4c 89 f7 e8 3d 70 81 f8 44 89 fb 48 c1 e3 03 49 03 1e 48 89 RSP: 0018:ffffc900001e0920 EFLAGS: 00000246 RAX: 1ffff11005188188 RBX: 0000000000000001 RCX: ffff88807a00bb80 RDX: 0000000000000100 RSI: ffffffff8b5d6da0 RDI: ffffffff8b5d6d60 RBP: ffffc900001e0a20 R08: ffffffff8960c058 R09: fffffbfff223b845 R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff1100f12744b R13: dffffc0000000000 R14: ffff888028c40c40 R15: 00000000000000fc FS: 00007fb583f0b6c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2f30dff8 CR3: 0000000028fbf000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ndisc_send_rs+0x92/0x6a0 net/ipv6/ndisc.c:690 addrconf_rs_timer+0x357/0x610 net/ipv6/addrconf.c:3963 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 sysvec_irq_work+0x8e/0xb0 arch/x86/kernel/irq_work.c:17 asm_sysvec_irq_work+0x16/0x20 arch/x86/include/asm/idtentry.h:679 RIP: 0010:finish_task_switch+0x1d3/0x810 kernel/sched/core.c:5120 Code: 32 0b 00 48 83 c4 08 4c 89 f7 e8 68 31 00 00 0f 1f 44 00 00 4c 89 f7 e8 9b ed 51 09 e8 26 21 32 00 fb 49 8d bc 24 f8 15 00 00 <48> 89 f8 48 c1 e8 03 49 bd 00 00 00 00 00 fc ff df 42 0f b6 04 28 RSP: 0018:ffffc90004dc7848 EFLAGS: 00000286 RAX: 5afc94a5a57f3300 RBX: ffff88802d125974 RCX: ffffffff97333103 RDX: dffffc0000000000 RSI: ffffffff8b0c0340 RDI: ffff88807a00d178 RBP: ffffc90004dc7890 R08: dffffc0000000000 R09: ffffed10171e7539 R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88807a00bb80 R13: 1ffff110171e76e3 R14: ffff8880b8f3a9c0 R15: ffff8880b8f3b718 context_switch kernel/sched/core.c:5244 [inline] __schedule+0x1447/0x4570 kernel/sched/core.c:6558 preempt_schedule_irq+0xf7/0x1c0 kernel/sched/core.c:6870 irqentry_exit+0x53/0x80 kernel/entry/common.c:439 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:653 RIP: 0010:qlist_free_all+0x28/0xe0 Code: 00 00 55 41 57 41 56 41 55 41 54 53 50 4c 8b 37 4d 85 f6 0f 84 b3 00 00 00 49 89 f7 48 89 3c 24 48 bd 00 00 00 00 00 fc ff df <4c> 89 f3 4d 89 fc 4d 85 ff 75 0b 48 89 df e8 65 03 00 00 49 89 c4 RSP: 0018:ffffc90004dc7be8 EFLAGS: 00000286 RAX: 0000000080000000 RBX: ffff888079b8be00 RCX: 0000000000000001 RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000001 RBP: dffffc0000000000 R08: dffffc0000000000 R09: ffffed10171e8231 R10: 0000000000000000 R11: dffffc0000000001 R12: ffff888017ccd000 R13: 0000000000000cc0 R14: ffff888079b88c00 R15: 0000000000000000 kasan_quarantine_reduce+0x156/0x170 mm/kasan/quarantine.c:294 __kasan_slab_alloc+0x1f/0x70 mm/kasan/common.c:305 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] slab_alloc mm/slub.c:3406 [inline] __kmem_cache_alloc_lru mm/slub.c:3413 [inline] kmem_cache_alloc_lru+0x10c/0x2d0 mm/slub.c:3429 alloc_inode_sb include/linux/fs.h:3198 [inline] sock_alloc_inode+0x24/0xc0 net/socket.c:306 alloc_inode fs/inode.c:261 [inline] new_inode_pseudo+0x61/0x1d0 fs/inode.c:1055 sock_alloc net/socket.c:631 [inline] __sock_create+0x11f/0x910 net/socket.c:1514 sock_create net/socket.c:1601 [inline] __sys_socketpair+0x2c1/0x700 net/socket.c:1728 __do_sys_socketpair net/socket.c:1781 [inline] __se_sys_socketpair net/socket.c:1778 [inline] __x64_sys_socketpair+0x97/0xb0 net/socket.c:1778 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: 0033:0x7fb58317def9 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:00007fb583f0b038 EFLAGS: 00000246 ORIG_RAX: 0000000000000035 RAX: ffffffffffffffda RBX: 00007fb583336058 RCX: 00007fb58317def9 RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000001 RBP: 00007fb5831f0b76 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000020000200 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fb583336058 R15: 00007ffc0eab1098