=====================================================
BUG: KMSAN: uninit-value in __sk_rx_queue_set include/net/sock.h:1924 [inline]
BUG: KMSAN: uninit-value in sk_rx_queue_update include/net/sock.h:1938 [inline]
BUG: KMSAN: uninit-value in sk_mark_napi_id include/net/busy_poll.h:136 [inline]
BUG: KMSAN: uninit-value in tcp_child_process+0xbaa/0x1030 net/ipv4/tcp_minisocks.c:833
 __sk_rx_queue_set include/net/sock.h:1924 [inline]
 sk_rx_queue_update include/net/sock.h:1938 [inline]
 sk_mark_napi_id include/net/busy_poll.h:136 [inline]
 tcp_child_process+0xbaa/0x1030 net/ipv4/tcp_minisocks.c:833
 tcp_v4_rcv+0x3d24/0x4e70 net/ipv4/tcp_ipv4.c:2066
 ip_protocol_deliver_rcu+0x752/0x10a0 net/ipv4/ip_input.c:204
 ip_local_deliver_finish net/ipv4/ip_input.c:231 [inline]
 NF_HOOK include/linux/netfilter.h:307 [inline]
 ip_local_deliver+0x584/0x8c0 net/ipv4/ip_input.c:252
 dst_input include/net/dst.h:460 [inline]
 ip_sublist_rcv_finish net/ipv4/ip_input.c:551 [inline]
 ip_list_rcv_finish net/ipv4/ip_input.c:601 [inline]
 ip_sublist_rcv+0x11a7/0x14d0 net/ipv4/ip_input.c:609
 ip_list_rcv+0x930/0x970 net/ipv4/ip_input.c:644
 __netif_receive_skb_list_ptype net/core/dev.c:5508 [inline]
 __netif_receive_skb_list_core+0xdf9/0x11f0 net/core/dev.c:5556
 __netif_receive_skb_list+0x7e3/0x940 net/core/dev.c:5608
 netif_receive_skb_list_internal+0x848/0xdc0 net/core/dev.c:5699
 gro_normal_list net/core/dev.c:5853 [inline]
 napi_complete_done+0x579/0xdc0 net/core/dev.c:6590
 virtqueue_napi_complete drivers/net/virtio_net.c:339 [inline]
 virtnet_poll+0x17a4/0x2340 drivers/net/virtio_net.c:1557
 __napi_poll+0x14c/0xc00 net/core/dev.c:7023
 napi_poll net/core/dev.c:7090 [inline]
 net_rx_action+0x7e2/0x1820 net/core/dev.c:7177
 __do_softirq+0x1ee/0x7c5 kernel/softirq.c:558
 invoke_softirq+0xa4/0x130 kernel/softirq.c:432
 __irq_exit_rcu kernel/softirq.c:637 [inline]
 irq_exit_rcu+0x76/0x130 kernel/softirq.c:649
 common_interrupt+0xb6/0xd0 arch/x86/kernel/irq.c:240
 asm_common_interrupt+0x1e/0x40
 update_stack_state+0x0/0xa60
 unwind_start arch/x86/include/asm/unwind.h:64 [inline]
 arch_stack_walk+0x240/0x3c0 arch/x86/kernel/stacktrace.c:24
 stack_trace_save+0x117/0x1a0 kernel/stacktrace.c:122
 kmsan_save_stack_with_flags mm/kmsan/core.c:80 [inline]
 kmsan_internal_poison_memory+0x45/0xa0 mm/kmsan/core.c:65
 kmsan_slab_free+0xd5/0x140 mm/kmsan/hooks.c:90
 slab_free_hook mm/slub.c:1710 [inline]
 slab_free_freelist_hook+0x27b/0x8e0 mm/slub.c:1766
 slab_free mm/slub.c:3530 [inline]
 kfree+0x2e7/0x9e0 mm/slub.c:4579
 once_deferred+0x125/0x180 lib/once.c:22
 process_one_work+0xdb9/0x1820 kernel/workqueue.c:2298
 worker_thread+0x10bc/0x21f0 kernel/workqueue.c:2445
 kthread+0x721/0x850 kernel/kthread.c:327
 ret_from_fork+0x1f/0x30

Uninit was created at:
 __alloc_pages+0xbbf/0x1090 mm/page_alloc.c:5409
 alloc_pages+0x8a5/0xb80
 alloc_slab_page mm/slub.c:1810 [inline]
 allocate_slab+0x287/0x1c10 mm/slub.c:1947
 new_slab mm/slub.c:2010 [inline]
 ___slab_alloc+0xb85/0x1e30 mm/slub.c:3039
 __slab_alloc mm/slub.c:3126 [inline]
 slab_alloc_node mm/slub.c:3217 [inline]
 slab_alloc mm/slub.c:3259 [inline]
 kmem_cache_alloc+0xbb3/0x11c0 mm/slub.c:3264
 sk_prot_alloc+0xeb/0x570 net/core/sock.c:1914
 sk_clone_lock+0xdd/0x1980 net/core/sock.c:2118
 inet_csk_clone_lock+0x8d/0x6a0 net/ipv4/inet_connection_sock.c:956
 tcp_create_openreq_child+0xb1/0x1ef0 net/ipv4/tcp_minisocks.c:453
 tcp_v4_syn_recv_sock+0x268/0x2710 net/ipv4/tcp_ipv4.c:1563
 tcp_check_req+0x21b2/0x2b10 net/ipv4/tcp_minisocks.c:765
 tcp_v4_rcv+0x3696/0x4e70 net/ipv4/tcp_ipv4.c:2047
 ip_protocol_deliver_rcu+0x752/0x10a0 net/ipv4/ip_input.c:204
 ip_local_deliver_finish net/ipv4/ip_input.c:231 [inline]
 NF_HOOK include/linux/netfilter.h:307 [inline]
 ip_local_deliver+0x584/0x8c0 net/ipv4/ip_input.c:252
 dst_input include/net/dst.h:460 [inline]
 ip_sublist_rcv_finish net/ipv4/ip_input.c:551 [inline]
 ip_list_rcv_finish net/ipv4/ip_input.c:601 [inline]
 ip_sublist_rcv+0x11a7/0x14d0 net/ipv4/ip_input.c:609
 ip_list_rcv+0x930/0x970 net/ipv4/ip_input.c:644
 __netif_receive_skb_list_ptype net/core/dev.c:5508 [inline]
 __netif_receive_skb_list_core+0xdf9/0x11f0 net/core/dev.c:5556
 __netif_receive_skb_list+0x7e3/0x940 net/core/dev.c:5608
 netif_receive_skb_list_internal+0x848/0xdc0 net/core/dev.c:5699
 gro_normal_list net/core/dev.c:5853 [inline]
 napi_complete_done+0x579/0xdc0 net/core/dev.c:6590
 virtqueue_napi_complete drivers/net/virtio_net.c:339 [inline]
 virtnet_poll+0x17a4/0x2340 drivers/net/virtio_net.c:1557
 __napi_poll+0x14c/0xc00 net/core/dev.c:7023
 napi_poll net/core/dev.c:7090 [inline]
 net_rx_action+0x7e2/0x1820 net/core/dev.c:7177
 __do_softirq+0x1ee/0x7c5 kernel/softirq.c:558

CPU: 1 PID: 116 Comm: kworker/1:2 Not tainted 5.16.0-rc4-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events once_deferred
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