hsr0: VLAN not yet supported
=====================================================
BUG: KMSAN: uninit-value in fill_frame_info net/hsr/hsr_forward.c:606 [inline]
BUG: KMSAN: uninit-value in hsr_forward_skb+0xf1f/0x3090 net/hsr/hsr_forward.c:620
 fill_frame_info net/hsr/hsr_forward.c:606 [inline]
 hsr_forward_skb+0xf1f/0x3090 net/hsr/hsr_forward.c:620
 hsr_dev_xmit+0x187/0x330 net/hsr/hsr_device.c:222
 __netdev_start_xmit include/linux/netdevice.h:4843 [inline]
 netdev_start_xmit include/linux/netdevice.h:4857 [inline]
 xmit_one+0x15a/0x5f0 net/core/dev.c:3590
 dev_hard_start_xmit+0xe5/0x370 net/core/dev.c:3606
 __dev_queue_xmit+0x1dec/0x31f0 net/core/dev.c:4256
 dev_queue_xmit+0x2b/0x30 include/linux/netdevice.h:3009
 packet_snd net/packet/af_packet.c:3072 [inline]
 packet_sendmsg+0x62a7/0x78e0 net/packet/af_packet.c:3103
 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

Uninit was created at:
 slab_post_alloc_hook mm/slab.h:742 [inline]
 slab_alloc_node mm/slub.c:3398 [inline]
 __kmem_cache_alloc_node+0x6ee/0xc90 mm/slub.c:3437
 __do_kmalloc_node mm/slab_common.c:954 [inline]
 __kmalloc_node_track_caller+0x114/0x3c0 mm/slab_common.c:975
 kmalloc_reserve net/core/skbuff.c:437 [inline]
 __alloc_skb+0x34a/0xca0 net/core/skbuff.c:509
 alloc_skb include/linux/skbuff.h:1267 [inline]
 alloc_skb_with_frags+0xb9/0xba0 net/core/skbuff.c:6126
 sock_alloc_send_pskb+0xaa8/0xc30 net/core/sock.c:2719
 packet_alloc_skb net/packet/af_packet.c:2920 [inline]
 packet_snd net/packet/af_packet.c:3015 [inline]
 packet_sendmsg+0x4cc5/0x78e0 net/packet/af_packet.c:3103
 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

CPU: 1 PID: 3980 Comm: syz-executor.0 Not tainted 6.1.0-syzkaller-00014-g5c6259d6d19f #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
=====================================================