===================================================== BUG: KMSAN: uninit-value in ipvlan_xmit_mode_l2 drivers/net/ipvlan/ipvlan_core.c:622 [inline] BUG: KMSAN: uninit-value in ipvlan_queue_xmit+0x107f/0x32f0 drivers/net/ipvlan/ipvlan_core.c:645 CPU: 1 PID: 8478 Comm: syz-executor852 Not tainted 5.10.0-rc4-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+0x21c/0x280 lib/dump_stack.c:118 kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:118 __msan_warning+0x5f/0xa0 mm/kmsan/kmsan_instr.c:197 ipvlan_xmit_mode_l2 drivers/net/ipvlan/ipvlan_core.c:622 [inline] ipvlan_queue_xmit+0x107f/0x32f0 drivers/net/ipvlan/ipvlan_core.c:645 ipvlan_start_xmit+0xa1/0x2a0 drivers/net/ipvlan/ipvlan_main.c:220 __netdev_start_xmit include/linux/netdevice.h:4718 [inline] netdev_start_xmit include/linux/netdevice.h:4732 [inline] dev_direct_xmit+0x9f0/0xd40 net/core/dev.c:4208 packet_direct_xmit+0x2b0/0x4c0 net/packet/af_packet.c:243 packet_snd net/packet/af_packet.c:2992 [inline] packet_sendmsg+0x8778/0x9a60 net/packet/af_packet.c:3017 sock_sendmsg_nosec net/socket.c:651 [inline] sock_sendmsg net/socket.c:671 [inline] __sys_sendto+0x9dc/0xc80 net/socket.c:1992 __do_sys_sendto net/socket.c:2004 [inline] __se_sys_sendto+0x107/0x130 net/socket.c:2000 __x64_sys_sendto+0x6e/0x90 net/socket.c:2000 do_syscall_64+0x9f/0x140 arch/x86/entry/common.c:48 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x4441e9 Code: e8 6c 05 03 00 48 83 c4 18 c3 0f 1f 80 00 00 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 0f 83 9b 07 fc ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007ffed30855a8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000004441e9 RDX: 000000000000000e RSI: 0000000020000000 RDI: 0000000000000004 RBP: 00316e616c767069 R08: 0000000000000000 R09: ffffffffffffff09 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000004240c R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 Local variable ----temp@dynamic_dname created at: dynamic_dname+0x116/0x400 fs/d_path.c:301 dynamic_dname+0x116/0x400 fs/d_path.c:301 =====================================================