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BUG: KMSAN: uninit-value in virtio_transport_recv_pkt+0x1c42/0x2580 net/vmw_vsock/virtio_transport_common.c:1367
 virtio_transport_recv_pkt+0x1c42/0x2580 net/vmw_vsock/virtio_transport_common.c:1367
 vsock_loopback_work+0x3e2/0x5d0 net/vmw_vsock/vsock_loopback.c:120
 process_one_work+0xb0d/0x1410 kernel/workqueue.c:2405
 worker_thread+0x107e/0x1d60 kernel/workqueue.c:2552
 kthread+0x3e8/0x540 kernel/kthread.c:379
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308

Uninit was stored to memory at:
 virtio_transport_space_update net/vmw_vsock/virtio_transport_common.c:1220 [inline]
 virtio_transport_recv_pkt+0x1ea4/0x2580 net/vmw_vsock/virtio_transport_common.c:1361
 vsock_loopback_work+0x3e2/0x5d0 net/vmw_vsock/vsock_loopback.c:120
 process_one_work+0xb0d/0x1410 kernel/workqueue.c:2405
 worker_thread+0x107e/0x1d60 kernel/workqueue.c:2552
 kthread+0x3e8/0x540 kernel/kthread.c:379
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308

Uninit was created at:
 slab_post_alloc_hook+0x12d/0xb60 mm/slab.h:716
 slab_alloc_node mm/slub.c:3451 [inline]
 kmem_cache_alloc_node+0x535/0xa30 mm/slub.c:3496
 kmalloc_reserve+0x148/0x470 net/core/skbuff.c:568
 __alloc_skb+0x318/0x740 net/core/skbuff.c:654
 alloc_skb include/linux/skbuff.h:1288 [inline]
 virtio_vsock_alloc_skb include/linux/virtio_vsock.h:66 [inline]
 virtio_transport_alloc_skb+0x8b/0x1170 net/vmw_vsock/virtio_transport_common.c:58
 virtio_transport_reset_no_sock net/vmw_vsock/virtio_transport_common.c:903 [inline]
 virtio_transport_recv_pkt+0x1531/0x2580 net/vmw_vsock/virtio_transport_common.c:1333
 vsock_loopback_work+0x3e2/0x5d0 net/vmw_vsock/vsock_loopback.c:120
 process_one_work+0xb0d/0x1410 kernel/workqueue.c:2405
 worker_thread+0x107e/0x1d60 kernel/workqueue.c:2552
 kthread+0x3e8/0x540 kernel/kthread.c:379
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308

CPU: 1 PID: 39 Comm: kworker/1:1 Not tainted 6.4.0-rc6-syzkaller-g7cccf3be6dcb #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023
Workqueue: vsock-loopback vsock_loopback_work
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