rcu: INFO: rcu_preempt self-detected stall on CPU rcu: 1-....: (1 GPs behind) idle=f6e4/1/0x4000000000000000 softirq=17466/17473 fqs=4904 rcu: hardirqs softirqs csw/system rcu: number: 5260 0 0 rcu: cputime: 137 0 52342 ==> 52490(ms) rcu: (t=10500 jiffies g=12157 q=285 ncpus=2) CPU: 1 UID: 0 PID: 9107 Comm: syz-executor340 Not tainted 6.16.0-rc5-syzkaller-01485-g8a2a6bb01664 #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 RIP: 0010:kasan_byte_accessible+0x16/0x30 mm/kasan/generic.c:201 Code: 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f 1f 00 48 c1 ef 03 48 b8 00 00 00 00 00 fc ff df 0f b6 04 07 <3c> 08 0f 92 c0 c3 cc cc cc cc cc 66 66 66 66 66 66 2e 0f 1f 84 00 RSP: 0018:ffffc90004c2e430 EFLAGS: 00000a02 RAX: 0000000000000000 RBX: ffffffff8b0f415a RCX: dc32d0723479e200 RDX: 0000000000000000 RSI: ffffffff8b0f415a RDI: 1ffffffff1c27e2c RBP: ffffffff8b0f413e R08: 0000000000000000 R09: 0000000000000000 R10: dffffc0000000000 R11: fffffbfff1f4441f R12: 0000000000000002 R13: ffffffff8e13f160 R14: ffffffff8e13f160 R15: 0000000000000000 FS: 00007fb6a5a4e6c0(0000) GS:ffff888125d1a000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fb6a5a76a90 CR3: 0000000070c12000 CR4: 00000000003526f0 Call Trace: __kasan_check_byte+0x12/0x40 mm/kasan/common.c:556 kasan_check_byte include/linux/kasan.h:399 [inline] lock_acquire+0x8d/0x360 kernel/locking/lockdep.c:5845 rcu_lock_acquire include/linux/rcupdate.h:331 [inline] rcu_read_lock include/linux/rcupdate.h:841 [inline] net_generic+0x3a/0x240 include/net/netns/generic.h:45 tipc_sk_lookup+0xa9/0x920 net/tipc/socket.c:2994 tipc_sk_rcv+0x3f9/0x2ba0 net/tipc/socket.c:2490 tipc_node_xmit+0x1c9/0xe90 net/tipc/node.c:1701 tipc_node_xmit_skb net/tipc/node.c:1766 [inline] tipc_node_distr_xmit+0x2a0/0x3b0 net/tipc/node.c:1781 tipc_sk_rcv+0x2636/0x2ba0 net/tipc/socket.c:2499 tipc_node_xmit+0x1c9/0xe90 net/tipc/node.c:1701 tipc_sk_push_backlog net/tipc/socket.c:1312 [inline] tipc_sk_filter_connect net/tipc/socket.c:2253 [inline] tipc_sk_filter_rcv+0x12a0/0x30b0 net/tipc/socket.c:2362 tipc_sk_enqueue net/tipc/socket.c:2443 [inline] tipc_sk_rcv+0x8a5/0x2ba0 net/tipc/socket.c:2495 tipc_node_xmit+0x1c9/0xe90 net/tipc/node.c:1701 tipc_node_xmit_skb net/tipc/node.c:1766 [inline] tipc_node_distr_xmit+0x2a0/0x3b0 net/tipc/node.c:1781 tipc_sk_backlog_rcv+0x1a1/0x230 net/tipc/socket.c:2410 sk_backlog_rcv include/net/sock.h:1148 [inline] __release_sock+0x249/0x350 net/core/sock.c:3188 release_sock+0x5f/0x1f0 net/core/sock.c:3742 sockopt_release_sock net/core/sock.c:1149 [inline] sk_setsockopt+0x2076/0x2dc0 net/core/sock.c:1662 do_sock_setsockopt+0x11b/0x1b0 net/socket.c:2340 __sys_setsockopt net/socket.c:2369 [inline] __do_sys_setsockopt net/socket.c:2375 [inline] __se_sys_setsockopt net/socket.c:2372 [inline] __x64_sys_setsockopt+0x13f/0x1b0 net/socket.c:2372 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fb6a5ab63e9 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:00007fb6a5a4e218 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 00007fb6a5a4e6c0 RCX: 00007fb6a5ab63e9 RDX: 0000000000000021 RSI: 0000000000000001 RDI: 0000000000000003 RBP: 00007fb6a5b40338 R08: 0000000000000004 R09: 0000000000000000 R10: 0000200000000540 R11: 0000000000000246 R12: 0000200000000500 R13: 00007fb6a5b40330 R14: 00007fb6a5b4033c R15: 0000200000000004