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BUG: KMSAN: kernel-network-infoleak in __netdev_start_xmit include/linux/netdevice.h:4841 [inline]
BUG: KMSAN: kernel-network-infoleak in netdev_start_xmit include/linux/netdevice.h:4857 [inline]
BUG: KMSAN: kernel-network-infoleak in __dev_direct_xmit+0x8e7/0xd60 net/core/dev.c:4312
 __netdev_start_xmit include/linux/netdevice.h:4841 [inline]
 netdev_start_xmit include/linux/netdevice.h:4857 [inline]
 __dev_direct_xmit+0x8e7/0xd60 net/core/dev.c:4312
 dev_direct_xmit include/linux/netdevice.h:3022 [inline]
 packet_direct_xmit+0x2a3/0x610 net/packet/af_packet.c:282
 packet_snd net/packet/af_packet.c:3073 [inline]
 packet_sendmsg+0x62a7/0x78e0 net/packet/af_packet.c:3104
 sock_sendmsg_nosec net/socket.c:714 [inline]
 sock_sendmsg net/socket.c:734 [inline]
 ____sys_sendmsg+0xa8e/0xe70 net/socket.c:2482
 ___sys_sendmsg+0x2a1/0x3f0 net/socket.c:2536
 __sys_sendmmsg+0x40d/0xa40 net/socket.c:2622
 __do_sys_sendmmsg net/socket.c:2651 [inline]
 __se_sys_sendmmsg net/socket.c:2648 [inline]
 __x64_sys_sendmmsg+0xb8/0x120 net/socket.c:2648
 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+0x117/0x3d0 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:6124
 sock_alloc_send_pskb+0xaa8/0xc30 net/core/sock.c:2719
 packet_alloc_skb net/packet/af_packet.c:2921 [inline]
 packet_snd net/packet/af_packet.c:3016 [inline]
 packet_sendmsg+0x4cc5/0x78e0 net/packet/af_packet.c:3104
 sock_sendmsg_nosec net/socket.c:714 [inline]
 sock_sendmsg net/socket.c:734 [inline]
 ____sys_sendmsg+0xa8e/0xe70 net/socket.c:2482
 ___sys_sendmsg+0x2a1/0x3f0 net/socket.c:2536
 __sys_sendmmsg+0x40d/0xa40 net/socket.c:2622
 __do_sys_sendmmsg net/socket.c:2651 [inline]
 __se_sys_sendmmsg net/socket.c:2648 [inline]
 __x64_sys_sendmmsg+0xb8/0x120 net/socket.c:2648
 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

Bytes 24-31 of 32 are uninitialized
Memory access of size 32 starts at ffff88811b8da6a0

CPU: 1 PID: 24863 Comm: syz-executor.3 Not tainted 6.1.0-rc4-syzkaller-62820-g9b1ac640862d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
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