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BUG: KMSAN: uninit-value in skb_gso_segment include/net/gso.h:83 [inline]
BUG: KMSAN: uninit-value in validate_xmit_skb+0x10f2/0x1930 net/core/dev.c:3626
 skb_gso_segment include/net/gso.h:83 [inline]
 validate_xmit_skb+0x10f2/0x1930 net/core/dev.c:3626
 __dev_queue_xmit+0x1eac/0x5130 net/core/dev.c:4338
 dev_queue_xmit include/linux/netdevice.h:3112 [inline]
 packet_xmit+0x9c/0x6b0 net/packet/af_packet.c:276
 packet_snd net/packet/af_packet.c:3087 [inline]
 packet_sendmsg+0x8b1d/0x9f30 net/packet/af_packet.c:3119
 sock_sendmsg_nosec net/socket.c:730 [inline]
 __sock_sendmsg net/socket.c:745 [inline]
 sock_sendmsg+0x1b0/0x300 net/socket.c:767
 splice_to_socket+0x1211/0x1b70 fs/splice.c:881
 do_splice_from fs/splice.c:933 [inline]
 direct_splice_actor+0x133/0x1e0 fs/splice.c:1142
 splice_direct_to_actor+0x502/0xfa0 fs/splice.c:1088
 do_splice_direct+0x26a/0x3d0 fs/splice.c:1194
 do_sendfile+0xbde/0x1b50 fs/read_write.c:1254
 __do_sys_sendfile64 fs/read_write.c:1322 [inline]
 __se_sys_sendfile64+0x1f5/0x280 fs/read_write.c:1308
 __x64_sys_sendfile64+0xbd/0x110 fs/read_write.c:1308
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x44/0x110 arch/x86/entry/common.c:82
 entry_SYSCALL_64_after_hwframe+0x63/0x6b

Uninit was created at:
 slab_post_alloc_hook+0x129/0xa70 mm/slab.h:768
 slab_alloc_node mm/slub.c:3478 [inline]
 kmem_cache_alloc_node+0x5e9/0xb10 mm/slub.c:3523
 kmalloc_reserve+0x13d/0x4a0 net/core/skbuff.c:560
 __alloc_skb+0x318/0x740 net/core/skbuff.c:651
 alloc_skb include/linux/skbuff.h:1286 [inline]
 alloc_skb_with_frags+0xc8/0xbd0 net/core/skbuff.c:6331
 sock_alloc_send_pskb+0xa80/0xbf0 net/core/sock.c:2780
 packet_alloc_skb net/packet/af_packet.c:2936 [inline]
 packet_snd net/packet/af_packet.c:3030 [inline]
 packet_sendmsg+0x70e8/0x9f30 net/packet/af_packet.c:3119
 sock_sendmsg_nosec net/socket.c:730 [inline]
 __sock_sendmsg net/socket.c:745 [inline]
 sock_sendmsg+0x1b0/0x300 net/socket.c:767
 splice_to_socket+0x1211/0x1b70 fs/splice.c:881
 do_splice_from fs/splice.c:933 [inline]
 direct_splice_actor+0x133/0x1e0 fs/splice.c:1142
 splice_direct_to_actor+0x502/0xfa0 fs/splice.c:1088
 do_splice_direct+0x26a/0x3d0 fs/splice.c:1194
 do_sendfile+0xbde/0x1b50 fs/read_write.c:1254
 __do_sys_sendfile64 fs/read_write.c:1322 [inline]
 __se_sys_sendfile64+0x1f5/0x280 fs/read_write.c:1308
 __x64_sys_sendfile64+0xbd/0x110 fs/read_write.c:1308
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x44/0x110 arch/x86/entry/common.c:82
 entry_SYSCALL_64_after_hwframe+0x63/0x6b

CPU: 0 PID: 17166 Comm: syz-executor.5 Not tainted 6.7.0-rc1-syzkaller-00125-g7475e51b8796 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023
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