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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 xmit_one+0x100/0x5f0 net/core/dev.c:3590
 __netdev_start_xmit include/linux/netdevice.h:4841 [inline]
 netdev_start_xmit include/linux/netdevice.h:4857 [inline]
 xmit_one+0x100/0x5f0 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 include/linux/netdevice.h:3009 [inline]
 neigh_connected_output+0x56e/0x5d0 net/core/neighbour.c:1581
 neigh_output include/net/neighbour.h:546 [inline]
 ip_finish_output2+0x182e/0x1a50 net/ipv4/ip_output.c:228
 __ip_finish_output+0x266/0x720
 ip_finish_output+0x3d1/0x400 net/ipv4/ip_output.c:316
 NF_HOOK_COND include/linux/netfilter.h:291 [inline]
 ip_output+0x258/0x510 net/ipv4/ip_output.c:430
 dst_output include/net/dst.h:445 [inline]
 ip_local_out net/ipv4/ip_output.c:126 [inline]
 ip_send_skb+0x10c/0x2a0 net/ipv4/ip_output.c:1586
 udp_send_skb+0xfae/0x17a0 net/ipv4/udp.c:971
 udp_sendmsg+0x3443/0x3610 net/ipv4/udp.c:1258
 inet_sendmsg+0x101/0x180 net/ipv4/af_inet.c:827
 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
 sock_alloc_send_skb include/net/sock.h:1884 [inline]
 __ip_append_data+0x4439/0x63c0 net/ipv4/ip_output.c:1120
 ip_make_skb+0x1ea/0x640 net/ipv4/ip_output.c:1652
 udp_sendmsg+0x32e6/0x3610 net/ipv4/udp.c:1253
 inet_sendmsg+0x101/0x180 net/ipv4/af_inet.c:827
 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 60 are uninitialized
Memory access of size 60 starts at ffff88810f957ca0

CPU: 1 PID: 3508 Comm: syz-executor113 Not tainted 6.1.0-rc4-syzkaller-62821-gcb231e2f67ec #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
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