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BUG: KMSAN: uninit-value in netif_skb_features+0xb21/0x1310 net/core/dev.c:3555
 netif_skb_features+0xb21/0x1310 net/core/dev.c:3555
 validate_xmit_skb+0x50/0x1c70 net/core/dev.c:3644
 __dev_queue_xmit+0x2502/0x5ac0 net/core/dev.c:4233
 dev_queue_xmit+0x2f/0x40 include/linux/netdevice.h:3033
 packet_snd net/packet/af_packet.c:3073 [inline]
 packet_sendmsg+0x89d8/0x9ef0 net/packet/af_packet.c:3104
 sock_sendmsg_nosec net/socket.c:714 [inline]
 sock_sendmsg net/socket.c:734 [inline]
 ____sys_sendmsg+0xa8f/0xe70 net/socket.c:2479
 ___sys_sendmsg+0x2a1/0x3f0 net/socket.c:2533
 __sys_sendmsg net/socket.c:2562 [inline]
 __do_sys_sendmsg net/socket.c:2571 [inline]
 __se_sys_sendmsg net/socket.c:2569 [inline]
 __x64_sys_sendmsg+0x36b/0x540 net/socket.c:2569
 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+0x12d/0xb60 mm/slab.h:766
 slab_alloc_node mm/slub.c:3452 [inline]
 __kmem_cache_alloc_node+0x518/0x920 mm/slub.c:3491
 __do_kmalloc_node mm/slab_common.c:967 [inline]
 __kmalloc_node_track_caller+0x118/0x3c0 mm/slab_common.c:988
 kmalloc_reserve net/core/skbuff.c:492 [inline]
 __alloc_skb+0x3b8/0x900 net/core/skbuff.c:565
 alloc_skb include/linux/skbuff.h:1270 [inline]
 alloc_skb_with_frags+0xbd/0xbb0 net/core/skbuff.c:6194
 sock_alloc_send_pskb+0xaad/0xc30 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+0x717f/0x9ef0 net/packet/af_packet.c:3104
 sock_sendmsg_nosec net/socket.c:714 [inline]
 sock_sendmsg net/socket.c:734 [inline]
 ____sys_sendmsg+0xa8f/0xe70 net/socket.c:2479
 ___sys_sendmsg+0x2a1/0x3f0 net/socket.c:2533
 __sys_sendmsg net/socket.c:2562 [inline]
 __do_sys_sendmsg net/socket.c:2571 [inline]
 __se_sys_sendmsg net/socket.c:2569 [inline]
 __x64_sys_sendmsg+0x36b/0x540 net/socket.c:2569
 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: 27514 Comm: syz-executor.4 Not tainted 6.2.0-syzkaller-81151-g224e1375d540 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
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