watchdog: BUG: soft lockup - CPU#0 stuck for 122s! [syz.8.3516:13742]
Modules linked in:
CPU: 0 PID: 13742 Comm: syz.8.3516 Tainted: G        W         5.10.237-syzkaller-00309-g7e2543346ff7 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:rcu_read_unlock_special+0x335/0x420 kernel/rcu/tree_plugin.h:644
Code: f3 00 00 00 41 8b 37 4c 89 f7 e8 a6 57 1e 00 eb 0a bf 09 00 00 00 e8 4a c4 e9 ff 48 8b 44 24 20 48 89 44 24 38 ff 74 24 38 9d <48> c7 44 24 40 0e 36 e0 45 4a c7 04 2b 00 00 00 00 65 48 8b 04 25
RSP: 0018:ffffc90000d56640 EFLAGS: 00000202
RAX: 0000000000000202 RBX: 1ffff920001aacd0 RCX: 0000000000000009
RDX: 0000000000000000 RSI: ffffffff84c7a0e0 RDI: ffffffff852010c0
RBP: ffffc90000d56708 R08: 0000000000000004 R09: 0000000000000003
R10: fffff520001aacf8 R11: 1ffff920001aacf8 R12: 0000000000000000
R13: dffffc0000000000 R14: ffff8881f70572c0 R15: ffffffff86398248
FS:  00007fcdd64476c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 00000001317e0000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 __rcu_read_unlock+0x5e/0xa0 kernel/rcu/tree_plugin.h:399
 rcu_read_unlock include/linux/rcupdate.h:770 [inline]
 net_generic include/net/netns/generic.h:47 [inline]
 tipc_sk_lookup+0xe3/0x5f0 net/tipc/socket.c:2993
 tipc_sk_rcv+0x3eb/0x1ef0 net/tipc/socket.c:2488
 tipc_node_xmit+0x256/0xcd0 net/tipc/node.c:1674
 tipc_node_xmit_skb net/tipc/node.c:1739 [inline]
 tipc_node_distr_xmit+0x292/0x390 net/tipc/node.c:1754
 tipc_sk_rcv+0x19b9/0x1ef0 net/tipc/socket.c:2497
 tipc_node_xmit+0x256/0xcd0 net/tipc/node.c:1674
 tipc_sk_push_backlog+0x4dd/0x790 net/tipc/socket.c:1306
 tipc_sk_conn_proto_rcv net/tipc/socket.c:1358 [inline]
 tipc_sk_proto_rcv+0x98d/0x1ac0 net/tipc/socket.c:2156
 tipc_sk_filter_rcv+0x30ac/0x3850 net/tipc/socket.c:2350
 tipc_sk_enqueue net/tipc/socket.c:2442 [inline]
 tipc_sk_rcv+0x7cc/0x1ef0 net/tipc/socket.c:2493
 tipc_node_xmit+0x256/0xcd0 net/tipc/node.c:1674
 tipc_node_xmit_skb net/tipc/node.c:1739 [inline]
 tipc_node_distr_xmit+0x292/0x390 net/tipc/node.c:1754
 tipc_sk_backlog_rcv+0x16f/0x1f0 net/tipc/socket.c:2410
 sk_backlog_rcv include/net/sock.h:1052 [inline]
 __release_sock+0x146/0x360 net/core/sock.c:2583
 release_sock net/core/sock.c:3134 [inline]
 sock_setsockopt+0x125e/0x2350 net/core/sock.c:1257
 __sys_setsockopt+0x265/0x460 net/socket.c:2142
 __do_sys_setsockopt net/socket.c:2157 [inline]
 __se_sys_setsockopt net/socket.c:2154 [inline]
 __x64_sys_setsockopt+0xbf/0xd0 net/socket.c:2154
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7fcdd7dde969
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:00007fcdd6447038 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 00007fcdd8005fa0 RCX: 00007fcdd7dde969
RDX: 0000000000000021 RSI: 0000000000000001 RDI: 0000000000000047
RBP: 00007fcdd7e60ab1 R08: 0000000000000004 R09: 0000000000000000
R10: 0000200000000540 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fcdd8005fa0 R15: 00007ffd3b16b6c8
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1 skipped: idling at native_safe_halt arch/x86/include/asm/irqflags.h:60 [inline]
NMI backtrace for cpu 1 skipped: idling at arch_safe_halt arch/x86/include/asm/irqflags.h:103 [inline]
NMI backtrace for cpu 1 skipped: idling at default_idle+0x12/0x20 arch/x86/kernel/process.c:711