===================================================== BUG: KMSAN: uninit-value in hsr_register_frame_in+0x27a/0x360 net/hsr/hsr_framereg.c:436 hsr_register_frame_in+0x27a/0x360 net/hsr/hsr_framereg.c:436 hsr_forward_skb+0x19f7/0x3820 net/hsr/hsr_forward.c:619 hsr_dev_xmit+0x265/0x4a0 net/hsr/hsr_device.c:223 __netdev_start_xmit include/linux/netdevice.h:4865 [inline] netdev_start_xmit include/linux/netdevice.h:4879 [inline] xmit_one net/core/dev.c:3583 [inline] dev_hard_start_xmit+0x321/0xb50 net/core/dev.c:3599 __dev_queue_xmit+0x4348/0x6290 net/core/dev.c:4249 dev_queue_xmit+0x4f/0x60 include/linux/netdevice.h:3035 packet_snd net/packet/af_packet.c:3073 [inline] packet_sendmsg+0x8b92/0xa180 net/packet/af_packet.c:3104 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg net/socket.c:734 [inline] __sys_sendto+0xa10/0xc90 net/socket.c:2117 __do_sys_sendto net/socket.c:2129 [inline] __se_sys_sendto net/socket.c:2125 [inline] __x64_sys_sendto+0x1a0/0x210 net/socket.c:2125 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd Uninit was stored to memory at: hsr_add_node+0x884/0xec0 net/hsr/hsr_framereg.c:164 hsr_get_node+0xb3a/0xbb0 net/hsr/hsr_framereg.c:246 fill_frame_info net/hsr/hsr_forward.c:579 [inline] hsr_forward_skb+0x11e4/0x3820 net/hsr/hsr_forward.c:616 hsr_dev_xmit+0x265/0x4a0 net/hsr/hsr_device.c:223 __netdev_start_xmit include/linux/netdevice.h:4865 [inline] netdev_start_xmit include/linux/netdevice.h:4879 [inline] xmit_one net/core/dev.c:3583 [inline] dev_hard_start_xmit+0x321/0xb50 net/core/dev.c:3599 __dev_queue_xmit+0x4348/0x6290 net/core/dev.c:4249 dev_queue_xmit+0x4f/0x60 include/linux/netdevice.h:3035 packet_snd net/packet/af_packet.c:3073 [inline] packet_sendmsg+0x8b92/0xa180 net/packet/af_packet.c:3104 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg net/socket.c:734 [inline] __sys_sendto+0xa10/0xc90 net/socket.c:2117 __do_sys_sendto net/socket.c:2129 [inline] __se_sys_sendto net/socket.c:2125 [inline] __x64_sys_sendto+0x1a0/0x210 net/socket.c:2125 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd Uninit was created at: slab_post_alloc_hook+0x271/0xf70 mm/slab.h:766 slab_alloc_node mm/slub.c:3452 [inline] __kmem_cache_alloc_node+0x68c/0xac0 mm/slub.c:3491 __do_kmalloc_node mm/slab_common.c:967 [inline] __kmalloc_node_track_caller+0x3df/0x710 mm/slab_common.c:988 kmalloc_reserve net/core/skbuff.c:492 [inline] __alloc_skb+0x56e/0xad0 net/core/skbuff.c:565 alloc_skb include/linux/skbuff.h:1270 [inline] alloc_skb_with_frags+0x1c8/0xcf0 net/core/skbuff.c:6194 sock_alloc_send_pskb+0xde6/0xfc0 net/core/sock.c:2743 packet_alloc_skb net/packet/af_packet.c:2921 [inline] packet_snd net/packet/af_packet.c:3016 [inline] packet_sendmsg+0x6bda/0xa180 net/packet/af_packet.c:3104 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg net/socket.c:734 [inline] __sys_sendto+0xa10/0xc90 net/socket.c:2117 __do_sys_sendto net/socket.c:2129 [inline] __se_sys_sendto net/socket.c:2125 [inline] __x64_sys_sendto+0x1a0/0x210 net/socket.c:2125 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd CPU: 1 PID: 8781 Comm: syz-executor.2 Not tainted 6.2.0-rc8-syzkaller-80994-gda13c00eebfb #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023 =====================================================