[ 456.746770][ T2187] gre: GRE over IPv4 demultiplexor driver
[ 456.763501][ T2187] ip_gre: GRE over IPv4 tunneling driver
[ 462.054061][ T2247] GACT probability NOT on
[ 476.733572][ C1]
[ 476.734054][ C1] =============================
[ 476.734313][ C1] WARNING: suspicious RCU usage
[ 476.734547][ C1] 6.13.0-virtme #1 Not tainted
[ 476.734779][ C1] -----------------------------
[ 476.735005][ C1] ./include/net/net_namespace.h:404 suspicious rcu_dereference_check() usage!
[ 476.735344][ C1]
[ 476.735344][ C1] other info that might help us debug this:
[ 476.735344][ C1]
[ 476.735740][ C1]
[ 476.735740][ C1] rcu_scheduler_active = 2, debug_locks = 1
[ 476.736050][ C1] 2 locks held by mausezahn/2336:
[ 476.736255][ C1] #0: ffffffff9ff42e30 (remove_cache_srcu){.+.+}-{0:0}, at: kasan_quarantine_reduce+0x88/0x1e0
[ 476.736686][ C1] #1: ffffc900001e0ae8 ((&n->timer)){+.-.}-{0:0}, at: call_timer_fn+0xe8/0x230
[ 476.737053][ C1]
[ 476.737053][ C1] stack backtrace:
[ 476.737357][ C1] CPU: 1 UID: 0 PID: 2336 Comm: mausezahn Not tainted 6.13.0-virtme #1
[ 476.737362][ C1] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 476.737365][ C1] Call Trace:
[ 476.737367][ C1]
[ 476.737370][ C1] dump_stack_lvl+0xb0/0xd0
[ 476.737379][ C1] lockdep_rcu_suspicious+0x1ea/0x280
[ 476.737390][ C1] icmp6_send+0x10ab/0x1bf0
[ 476.737398][ C1] ? rcu_read_lock_any_held+0x43/0xb0
[ 476.737404][ C1] ? validate_chain+0x1fe/0xae0
[ 476.737410][ C1] ? __pfx_validate_chain+0x10/0x10
[ 476.737421][ C1] ? __pfx_icmp6_send+0x10/0x10
[ 476.737430][ C1] ? __pfx_validate_chain+0x10/0x10
[ 476.737434][ C1] ? hlock_class+0x4e/0x130
[ 476.737437][ C1] ? mark_lock+0x38/0x3e0
[ 476.737447][ C1] ? __lock_acquire+0xb9a/0x1680
[ 476.737453][ C1] ? find_held_lock+0x2c/0x110
[ 476.737459][ C1] ? __lock_release+0x103/0x460
[ 476.737462][ C1] ? neigh_invalidate+0x1c7/0x540
[ 476.737468][ C1] ? __pfx___lock_release+0x10/0x10
[ 476.737471][ C1] ? lock_acquire.part.0+0xeb/0x330
[ 476.737482][ C1] ip6_link_failure+0x30/0x430
[ 476.737491][ C1] ndisc_error_report+0x96/0x170
[ 476.737498][ C1] neigh_invalidate+0x209/0x540
[ 476.737507][ C1] neigh_timer_handler+0x87a/0xdf0
[ 476.737517][ C1] ? __pfx_neigh_timer_handler+0x10/0x10
[ 476.737522][ C1] call_timer_fn+0x13b/0x230
[ 476.737526][ C1] ? call_timer_fn+0xe8/0x230
[ 476.737529][ C1] ? call_timer_fn+0xe8/0x230
[ 476.737533][ C1] ? __pfx_call_timer_fn+0x10/0x10
[ 476.737536][ C1] ? hlock_class+0x4e/0x130
[ 476.737543][ C1] ? mark_held_locks+0x9e/0xe0
[ 476.737554][ C1] __run_timers+0x545/0x810
[ 476.737558][ C1] ? __pfx_neigh_timer_handler+0x10/0x10
[ 476.737568][ C1] ? __pfx___run_timers+0x10/0x10
[ 476.737570][ C1] ? __lock_release+0x103/0x460
[ 476.737578][ C1] ? do_raw_spin_lock+0x131/0x270
[ 476.737584][ C1] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 476.737588][ C1] ? lock_acquire+0x32/0xc0
[ 476.737591][ C1] ? timer_expire_remote+0x96/0xf0
[ 476.737601][ C1] timer_expire_remote+0x9e/0xf0
[ 476.737605][ C1] tmigr_handle_remote_cpu+0x278/0x440
[ 476.737612][ C1] ? __pfx_tmigr_handle_remote_cpu+0x10/0x10
[ 476.737615][ C1] ? __pfx___lock_release+0x10/0x10
[ 476.737620][ C1] ? hlock_class+0x4e/0x130
[ 476.737622][ C1] ? mark_lock+0x38/0x3e0
[ 476.737629][ C1] ? mark_held_locks+0x9e/0xe0
[ 476.737640][ C1] tmigr_handle_remote_up+0x1a6/0x270
[ 476.737645][ C1] ? __pfx_tmigr_handle_remote_up+0x10/0x10
[ 476.737650][ C1] __walk_groups.isra.0+0x44/0x160
[ 476.737660][ C1] tmigr_handle_remote+0x20b/0x300
[ 476.737664][ C1] ? __pfx_tmigr_handle_remote+0x10/0x10
[ 476.737669][ C1] ? hlock_class+0x4e/0x130
[ 476.737676][ C1] ? mark_held_locks+0x9e/0xe0
[ 476.737685][ C1] handle_softirqs+0x1f6/0x5c0
[ 476.737698][ C1] __irq_exit_rcu+0xc4/0x100
[ 476.737701][ C1] irq_exit_rcu+0xe/0x20
[ 476.737704][ C1] sysvec_apic_timer_interrupt+0x78/0x90
[ 476.737710][ C1]
[ 476.737711][ C1]
[ 476.737713][ C1] asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 476.737718][ C1] RIP: 0010:_raw_spin_unlock_irqrestore+0x43/0x70
[ 476.737724][ C1] Code: 10 e8 81 74 88 fd 48 89 ef e8 c9 e4 88 fd 81 e3 00 02 00 00 75 1d 9c 58 f6 c4 02 75 29 48 85 db 74 01 fb 65 ff 0d 75 7d 30 61 <74> 0e 5b 5d c3 cc cc cc cc e8 8f 03 ae fd eb dc 0f 1f 44 00 00 5b
[ 476.737727][ C1] RSP: 0018:ffffc90001b77608 EFLAGS: 00000246
[ 476.737730][ C1] RAX: 0000000000000006 RBX: 0000000000000200 RCX: 1ffffffff43c64c3
[ 476.737732][ C1] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff9ed34761
[ 476.737734][ C1] RBP: ffff888001040e00 R08: 0000000000000001 R09: fffffbfff43c43e5
[ 476.737735][ C1] R10: ffffffffa1e21f2f R11: ffff88800a96c5c0 R12: ffff88800a11b380
[ 476.737737][ C1] R13: 0000000000000000 R14: ffffc90001b77658 R15: ffff88800b909464
[ 476.737748][ C1] ? _raw_spin_unlock_irqrestore+0x51/0x70
[ 476.737756][ C1] qlist_free_all+0x4c/0x120
[ 476.737766][ C1] kasan_quarantine_reduce+0x195/0x1e0
[ 476.737772][ C1] __kasan_slab_alloc+0x49/0x70
[ 476.737780][ C1] kmem_cache_alloc_node_noprof+0x110/0x360
[ 476.737793][ C1] __alloc_skb+0x215/0x2e0
[ 476.737801][ C1] ? __pfx___alloc_skb+0x10/0x10
[ 476.737804][ C1] ? ipv6_dev_get_saddr+0x2b0/0xac0
[ 476.737809][ C1] ? __pfx___lock_release+0x10/0x10
[ 476.737829][ C1] alloc_skb_with_frags+0xbb/0x840
[ 476.737837][ C1] ? ipv6_dev_get_saddr+0x2ba/0xac0
[ 476.737845][ C1] sock_alloc_send_pskb+0x660/0x7f0
[ 476.737850][ C1] ? __pfx_validate_chain+0x10/0x10
[ 476.737864][ C1] ? __pfx_sock_alloc_send_pskb+0x10/0x10
[ 476.737874][ C1] ? __pfx_xfrm_lookup_with_ifid+0x10/0x10
[ 476.737883][ C1] ? find_held_lock+0x2c/0x110
[ 476.737890][ C1] rawv6_send_hdrinc+0x259/0x1470
[ 476.737903][ C1] ? __pfx_rawv6_send_hdrinc+0x10/0x10
[ 476.737909][ C1] ? ip6_dst_hoplimit.part.0.isra.0+0xd0/0x310
[ 476.737921][ C1] rawv6_sendmsg+0x8f7/0x1840
[ 476.737930][ C1] ? trace_raw_output_lock+0x8f/0xf0
[ 476.737938][ C1] ? __pfx_rawv6_sendmsg+0x10/0x10
[ 476.737944][ C1] ? __lock_acquire+0xb9a/0x1680
[ 476.737955][ C1] ? __pfx_validate_chain+0x10/0x10
[ 476.737963][ C1] ? find_held_lock+0x2c/0x110
[ 476.737969][ C1] ? __lock_release+0x103/0x460
[ 476.737972][ C1] ? __might_fault+0x11b/0x170
[ 476.737987][ C1] ? __might_fault+0xc3/0x170
[ 476.737992][ C1] ? __might_fault+0x11b/0x170
[ 476.738002][ C1] ? __sys_sendto+0x37a/0x450
[ 476.738008][ C1] __sys_sendto+0x37a/0x450
[ 476.738013][ C1] ? __pfx___sys_sendto+0x10/0x10
[ 476.738016][ C1] ? __pfx___lock_release+0x10/0x10
[ 476.738019][ C1] ? trace_lock_acquire+0x14c/0x1f0
[ 476.738032][ C1] ? rseq_update_cpu_node_id+0xe6/0x140
[ 476.738045][ C1] ? __pfx___rseq_handle_notify_resume+0x10/0x10
[ 476.738061][ C1] __x64_sys_sendto+0xe0/0x1c0
[ 476.738065][ C1] ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 476.738070][ C1] do_syscall_64+0xc1/0x1d0
[ 476.738079][ C1] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 476.738082][ C1] RIP: 0033:0x7f1880e0da4a
[ 476.738088][ C1] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb b8 0f 1f 00 f3 0f 1e fa 41 89 ca 64 8b 04 25 18 00 00 00 85 c0 75 15 b8 2c 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 7e c3 0f 1f 44 00 00 41 54 48 83 ec 30 44 89
[ 476.738090][ C1] RSP: 002b:00007ffc368fa658 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[ 476.738093][ C1] RAX: ffffffffffffffda RBX: 0000000002d899d0 RCX: 00007f1880e0da4a
[ 476.738095][ C1] RDX: 0000000000000070 RSI: 0000000002d89c70 RDI: 0000000000000005
[ 476.738096][ C1] RBP: 0000000002d899d0 R08: 00007ffc368fa660 R09: 000000000000001c
[ 476.738098][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000070
[ 476.738100][ C1] R13: 0000000000000032 R14: 0000000000000000 R15: 0000000000000000
[ 476.738116][ C1]