rcu: INFO: rcu_preempt self-detected stall on CPU rcu: 0-....: (10504 ticks this GP) idle=ab24/1/0x4000000000000000 softirq=13437/13439 fqs=5247 rcu: hardirqs softirqs csw/system rcu: number: 5371 0 0 rcu: cputime: 64 0 52425 ==> 52490(ms) rcu: (t=10500 jiffies g=4857 q=523 ncpus=2) CPU: 0 UID: 0 PID: 5850 Comm: syz-executor181 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 RIP: 0010:get_current arch/x86/include/asm/current.h:25 [inline] RIP: 0010:__rcu_read_unlock+0xcf/0x550 kernel/rcu/tree_plugin.h:441 Code: 48 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 d4 01 00 00 8b 85 48 04 00 00 85 c0 75 57 <65> 48 8b 1d 11 58 34 12 48 8d bb 44 04 00 00 48 b8 00 00 00 00 00 RSP: 0018:ffffc90003626bf8 EFLAGS: 00000246 RAX: 0000000000000046 RBX: ffff8880b843b300 RCX: ffffffff81c376ef RDX: 0000000000000000 RSI: ffffffff8c162880 RDI: ffffffff81a1e989 RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffff90ab4097 R11: ffffffff81000130 R12: ffffffff8e5cc000 R13: 0000000000000200 R14: 0000000018663301 R15: 1ffff920006c4d93 FS: 00007fdc1bc2e6c0(0000) GS:ffff8881246bc000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fdc1bc0dd58 CR3: 0000000074d38000 CR4: 00000000003526f0 Call Trace: rcu_read_unlock include/linux/rcupdate.h:873 [inline] net_generic+0xf4/0x2a0 include/net/netns/generic.h:48 tipc_sk_lookup+0xa2/0x930 net/tipc/socket.c:2994 tipc_sk_rcv+0x2be/0x1bd0 net/tipc/socket.c:2490 tipc_node_xmit+0x232/0xfc0 net/tipc/node.c:1701 tipc_node_xmit_skb+0xef/0x160 net/tipc/node.c:1766 tipc_sk_rcv+0x16b7/0x1bd0 net/tipc/socket.c:2520 tipc_node_xmit+0x232/0xfc0 net/tipc/node.c:1701 tipc_sk_push_backlog+0x318/0x9e0 net/tipc/socket.c:1312 tipc_sk_filter_connect net/tipc/socket.c:2253 [inline] tipc_sk_filter_rcv+0x1397/0x3020 net/tipc/socket.c:2362 tipc_sk_enqueue net/tipc/socket.c:2443 [inline] tipc_sk_rcv+0xfed/0x1bd0 net/tipc/socket.c:2495 tipc_node_xmit+0x232/0xfc0 net/tipc/node.c:1701 tipc_node_xmit_skb net/tipc/node.c:1766 [inline] tipc_node_distr_xmit+0x177/0x3c0 net/tipc/node.c:1781 tipc_sk_backlog_rcv+0x16f/0x1e0 net/tipc/socket.c:2410 sk_backlog_rcv include/net/sock.h:1148 [inline] __release_sock+0x35f/0x400 net/core/sock.c:3194 release_sock+0x5a/0x220 net/core/sock.c:3748 tipc_release+0x8c3/0x1640 net/tipc/socket.c:650 __sock_release+0xb3/0x270 net/socket.c:649 sock_close+0x1c/0x30 net/socket.c:1439 __fput+0x3ff/0xb70 fs/file_table.c:468 task_work_run+0x14d/0x240 kernel/task_work.c:227 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] exit_to_user_mode_loop+0xeb/0x110 kernel/entry/common.c:43 exit_to_user_mode_prepare include/linux/irq-entry-common.h:225 [inline] syscall_exit_to_user_mode_work include/linux/entry-common.h:175 [inline] syscall_exit_to_user_mode include/linux/entry-common.h:210 [inline] do_syscall_64+0x3f6/0x4c0 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fdc1bc75a29 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 18 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fdc1bc2e218 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: 00000000000203a0 RBX: 00007fdc1bd01328 RCX: 00007fdc1bc75a29 RDX: 0000000000000000 RSI: 00002000000003c0 RDI: 0000000000000003 RBP: 00007fdc1bd01320 R08: 0000000000000000 R09: 0000000000000000 R10: 00002000000003c0 R11: 0000000000000246 R12: 00007fdc1bcce470 R13: 0000200000002880 R14: 0000200000002720 R15: 0000200000002700