__do_sys_sendto net/socket.c:2129 [inline]
 __se_sys_sendto net/socket.c:2125 [inline]
 __x64_sys_sendto+0x121/0x1c0 net/socket.c:2125
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fa80ea3d54c
=====================================================
BUG: KMSAN: uninit-value in show_opcodes+0x2c1/0x2e0 arch/x86/kernel/dumpstack.c:123
 show_opcodes+0x2c1/0x2e0 arch/x86/kernel/dumpstack.c:123
 show_ip arch/x86/kernel/dumpstack.c:144 [inline]
 show_iret_regs+0xe3/0x230 arch/x86/kernel/dumpstack.c:149
 __show_regs+0x31/0xc90 arch/x86/kernel/process_64.c:74
 show_regs_if_on_stack+0x45e/0x530 arch/x86/kernel/dumpstack.c:167
 show_trace_log_lvl+0x392/0x490 arch/x86/kernel/dumpstack.c:298
 show_regs+0xad/0xd0 arch/x86/kernel/dumpstack.c:475
 nmi_cpu_backtrace+0x499/0x570 lib/nmi_backtrace.c:109
 nmi_cpu_backtrace_handler+0x21/0x40 arch/x86/kernel/apic/hw_nmi.c:45
 nmi_handle+0x75/0x140 arch/x86/kernel/nmi.c:140
 default_do_nmi+0x69/0x170 arch/x86/kernel/nmi.c:337
 exc_nmi+0xaf/0x120 arch/x86/kernel/nmi.c:513
 end_repeat_nmi+0x16/0x31
 smap_restore arch/x86/include/asm/smap.h:56 [inline]
 get_shadow_origin_ptr mm/kmsan/instrumentation.c:37 [inline]
 __msan_metadata_ptr_for_store_4+0x2a/0x40 mm/kmsan/instrumentation.c:77
 rcu_preempt_read_enter kernel/rcu/tree_plugin.h:377 [inline]
 __rcu_read_lock+0x41/0x70 kernel/rcu/tree_plugin.h:400
 rcu_read_lock include/linux/rcupdate.h:736 [inline]
 xa_get_mark+0x2d/0x7d0 lib/xarray.c:1945
 devlinks_xa_find_get+0xb8/0x500 net/core/devlink.c:308
 devlinks_xa_find_get_first net/core/devlink.c:328 [inline]
 devlink_nl_cmd_port_get_dumpit+0xf0/0x8a0 net/core/devlink.c:1553
 netlink_dump+0xa75/0x1430 net/netlink/af_netlink.c:2275
 __netlink_dump_start+0xa6d/0xc40 net/netlink/af_netlink.c:2380
 genl_family_rcv_msg_dumpit net/netlink/genetlink.c:689 [inline]
 genl_family_rcv_msg net/netlink/genetlink.c:805 [inline]
 genl_rcv_msg+0x19b1/0x1e40 net/netlink/genetlink.c:825
 netlink_rcv_skb+0x3b5/0x6e0 net/netlink/af_netlink.c:2540
 genl_rcv+0x3c/0x50 net/netlink/genetlink.c:836
 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
 netlink_unicast+0xf3b/0x1270 net/netlink/af_netlink.c:1345
 netlink_sendmsg+0x127d/0x1430 net/netlink/af_netlink.c:1921
 sock_sendmsg_nosec net/socket.c:714 [inline]
 sock_sendmsg net/socket.c:734 [inline]
 __sys_sendto+0x7f2/0xa60 net/socket.c:2117
 __do_sys_sendto net/socket.c:2129 [inline]
 __se_sys_sendto net/socket.c:2125 [inline]
 __x64_sys_sendto+0x121/0x1c0 net/socket.c:2125
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

Local variable opcodes created at:
 show_opcodes+0x49/0x2e0 arch/x86/kernel/dumpstack.c:118
 show_ip arch/x86/kernel/dumpstack.c:144 [inline]
 show_iret_regs+0xe3/0x230 arch/x86/kernel/dumpstack.c:149

CPU: 0 PID: 3758 Comm: syz-executor.1 Not tainted 6.1.0-rc2-syzkaller-61955-g4a3e741a3d6a #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022
=====================================================