tipc: Started in network mode tipc: Own node identity ff000000000000000000000000000001, cluster identity 4711 tipc: New replicast peer: fe80:0000:0000:0000:dd00:0000:0000:00bb check_preemption_disabled: 3 callbacks suppressed BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor923/8820 caller is dst_cache_get+0x3d/0xb0 net/core/dst_cache.c:68 CPU: 1 PID: 8820 Comm: syz-executor923 Not tainted 5.4.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x197/0x210 lib/dump_stack.c:118 check_preemption_disabled lib/smp_processor_id.c:47 [inline] debug_smp_processor_id.cold+0x87/0x9d lib/smp_processor_id.c:57 dst_cache_get+0x3d/0xb0 net/core/dst_cache.c:68 tipc_udp_xmit.isra.0+0xc4/0xb80 net/tipc/udp_media.c:164 tipc_udp_send_msg+0x29a/0x490 net/tipc/udp_media.c:254 tipc_bearer_xmit_skb+0x219/0x480 net/tipc/bearer.c:525 tipc_enable_bearer+0xb1d/0xd90 net/tipc/bearer.c:330 __tipc_nl_bearer_enable+0x2de/0x3a0 net/tipc/bearer.c:994 tipc_nl_bearer_enable+0x23/0x40 net/tipc/bearer.c:1002 genl_family_rcv_msg_doit net/netlink/genetlink.c:672 [inline] genl_family_rcv_msg net/netlink/genetlink.c:717 [inline] genl_rcv_msg+0x67d/0xea0 net/netlink/genetlink.c:734 netlink_rcv_skb+0x177/0x450 net/netlink/af_netlink.c:2477 genl_rcv+0x29/0x40 net/netlink/genetlink.c:745 netlink_unicast_kernel net/netlink/af_netlink.c:1302 [inline] netlink_unicast+0x531/0x710 net/netlink/af_netlink.c:1328 netlink_sendmsg+0x8a5/0xd60 net/netlink/af_netlink.c:1917 sock_sendmsg_nosec net/socket.c:638 [inline] sock_sendmsg+0xd7/0x130 net/socket.c:658 ___sys_sendmsg+0x803/0x920 net/socket.c:2329 __sys_sendmsg+0x105/0x1d0 net/socket.c:2374 __compat_sys_sendmsg net/compat.c:642 [inline] __do_compat_sys_sendmsg net/compat.c:649 [inline] __se_compat_sys_sendmsg net/compat.c:646 [inline] __ia32_compat_sys_sendmsg+0x7a/0xb0 net/compat.c:646 do_syscall_32_irqs_on arch/x86/entry/common.c:333 [inline] do_fast_syscall_32+0x27b/0xdb3 arch/x86/entry/common.c:404 entry_SYSENTER_compat+0x70/0x7f arch/x86/entry/entry_64_compat.S:139 RIP: 0023:0xf7fd1a39 Code: 00 00 00 89 d3 5b 5e 5f 5d c3 b8 80 96 98 00 eb c4 8b 04 24 c3 8b 1c 24 c3 8b 34 24 c3 8b 3c 24 c3 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 RSP: 002b:00000000ff9fc22c EFLAGS: 00000246 ORIG_RAX: 0000000000000172