rcu: INFO: rcu_preempt self-detected stall on CPU rcu: 1-....: (10500 ticks this GP) idle=4844/1/0x4000000000000000 softirq=14742/14742 fqs=5245 rcu: hardirqs softirqs csw/system rcu: number: 5344 0 0 rcu: cputime: 138 0 52345 ==> 52490(ms) rcu: (t=10500 jiffies g=13537 q=1216 ncpus=2) CPU: 1 UID: 0 PID: 8477 Comm: syz-executor413 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 RIP: 0010:get_current arch/x86/include/asm/current.h:25 [inline] RIP: 0010:debug_lockdep_rcu_enabled+0x18/0x40 kernel/rcu/update.c:321 Code: cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 31 c0 83 3d b3 a7 62 04 00 74 1d 83 3d aa d9 62 04 00 74 14 <65> 48 8b 0d e8 47 6d 07 31 c0 83 b9 54 0b 00 00 00 0f 94 c0 c3 cc RSP: 0018:ffffc900061ce4a8 EFLAGS: 00000202 RAX: 0000000000000000 RBX: ffffffff8b4c082e RCX: ffff8880292a5b80 RDX: 0000000000000000 RSI: ffffffff8c27cae0 RDI: ffffffff8c27caa0 RBP: 0000000000000055 R08: ffffffff8b4c082e R09: ffffffff8e75e620 R10: dffffc0000000000 R11: fffffbfff20237d7 R12: ffff8880372ae000 R13: dffffc0000000000 R14: ffffffff9a7a8280 R15: dffffc0000000000 FS: 00007f6e03a166c0(0000) GS:ffff88812555a000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000200000000000 CR3: 000000005c6fa000 CR4: 00000000003526f0 Call Trace: net_generic+0xeb/0x240 include/net/netns/generic.h:46 tipc_sk_lookup+0xa6/0x920 net/tipc/socket.c:2996 tipc_sk_rcv+0x409/0x2b70 net/tipc/socket.c:2492 tipc_node_xmit+0x202/0xf10 net/tipc/node.c:1701 tipc_node_xmit_skb net/tipc/node.c:1766 [inline] tipc_node_distr_xmit+0x2d8/0x400 net/tipc/node.c:1781 tipc_sk_rcv+0x2561/0x2b70 net/tipc/socket.c:2501 tipc_node_xmit+0x202/0xf10 net/tipc/node.c:1701 tipc_sk_push_backlog net/tipc/socket.c:1312 [inline] tipc_sk_filter_connect net/tipc/socket.c:2255 [inline] tipc_sk_filter_rcv+0x1d4c/0x33d0 net/tipc/socket.c:2364 tipc_sk_enqueue net/tipc/socket.c:2445 [inline] tipc_sk_rcv+0x88e/0x2b70 net/tipc/socket.c:2497 tipc_node_xmit+0x202/0xf10 net/tipc/node.c:1701 tipc_node_xmit_skb net/tipc/node.c:1766 [inline] tipc_node_distr_xmit+0x2d8/0x400 net/tipc/node.c:1781 tipc_sk_backlog_rcv+0x1bb/0x270 net/tipc/socket.c:2412 sk_backlog_rcv include/net/sock.h:1185 [inline] __release_sock+0x297/0x3a0 net/core/sock.c:3213 release_sock+0x5f/0x1f0 net/core/sock.c:3795 sockopt_release_sock net/core/sock.c:1161 [inline] sk_setsockopt+0x28af/0x2e80 net/core/sock.c:1674 do_sock_setsockopt+0x11b/0x1b0 net/socket.c:2318 __sys_setsockopt net/socket.c:2347 [inline] __do_sys_setsockopt net/socket.c:2353 [inline] __se_sys_setsockopt net/socket.c:2350 [inline] __x64_sys_setsockopt+0x13d/0x1b0 net/socket.c:2350 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f6e03a3e029 Code: c0 79 93 eb d5 48 8d 7c 1d 00 eb 99 0f 1f 44 00 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 d0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f6e03a161d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 00007f6e03a16cdc RCX: 00007f6e03a3e029 RDX: 0000000000000021 RSI: 0000000000000001 RDI: 0000000000000003 RBP: 00007f6e03aeeb48 R08: 0000000000000004 R09: 38203a6b63617473 R10: 00002000000001c0 R11: 0000000000000246 R12: 0000200000000240 R13: 00007f6e03aeeb40 R14: 00007f6e03aeeb4c R15: 0000200000000004