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BUG: KCSAN: data-race in virtqueue_disable_cb / virtqueue_disable_cb

read to 0xffff888102760e78 of 2 bytes by interrupt on cpu 0:
 virtqueue_disable_cb_split drivers/virtio/virtio_ring.c:885 [inline]
 virtqueue_disable_cb+0x63/0x180 drivers/virtio/virtio_ring.c:2446
 skb_xmit_done+0x5f/0x140 drivers/net/virtio_net.c:454
 vring_interrupt+0x150/0x170 drivers/virtio/virtio_ring.c:2595
 __handle_irq_event_percpu+0x91/0x490 kernel/irq/handle.c:158
 handle_irq_event_percpu kernel/irq/handle.c:193 [inline]
 handle_irq_event+0x64/0xf0 kernel/irq/handle.c:210
 handle_edge_irq+0x167/0x590 kernel/irq/chip.c:831
 generic_handle_irq_desc include/linux/irqdesc.h:161 [inline]
 handle_irq arch/x86/kernel/irq.c:238 [inline]
 __common_interrupt+0x54/0xe0 arch/x86/kernel/irq.c:257
 common_interrupt+0x7a/0x90 arch/x86/kernel/irq.c:247
 asm_common_interrupt+0x26/0x40 arch/x86/include/asm/idtentry.h:636
 kcsan_setup_watchpoint+0x3fe/0x410 kernel/kcsan/core.c:705
 putname fs/namei.c:269 [inline]
 user_path_at_empty+0xa3/0x110 fs/namei.c:2912
 do_readlinkat+0x92/0x210 fs/stat.c:533
 __do_sys_readlink fs/stat.c:566 [inline]
 __se_sys_readlink fs/stat.c:563 [inline]
 __x64_sys_readlink+0x47/0x50 fs/stat.c:563
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

write to 0xffff888102760e78 of 2 bytes by task 3271 on cpu 1:
 virtqueue_disable_cb_split drivers/virtio/virtio_ring.c:886 [inline]
 virtqueue_disable_cb+0x85/0x180 drivers/virtio/virtio_ring.c:2446
 start_xmit+0xf0/0xae0 drivers/net/virtio_net.c:2337
 __netdev_start_xmit include/linux/netdevice.h:4889 [inline]
 netdev_start_xmit include/linux/netdevice.h:4903 [inline]
 xmit_one net/core/dev.c:3544 [inline]
 dev_hard_start_xmit+0x11b/0x3f0 net/core/dev.c:3560
 sch_direct_xmit+0x1b0/0x570 net/sched/sch_generic.c:342
 __dev_xmit_skb net/core/dev.c:3771 [inline]
 __dev_queue_xmit+0xe50/0x1de0 net/core/dev.c:4306
 dev_queue_xmit include/linux/netdevice.h:3082 [inline]
 neigh_hh_output include/net/neighbour.h:526 [inline]
 neigh_output include/net/neighbour.h:540 [inline]
 ip_finish_output2+0x72f/0x880 net/ipv4/ip_output.c:233
 ip_finish_output+0xf4/0x240 net/ipv4/ip_output.c:321
 NF_HOOK_COND include/linux/netfilter.h:293 [inline]
 ip_output+0xab/0x170 net/ipv4/ip_output.c:431
 dst_output include/net/dst.h:458 [inline]
 ip_local_out net/ipv4/ip_output.c:127 [inline]
 __ip_queue_xmit+0xb09/0xb30 net/ipv4/ip_output.c:533
 ip_queue_xmit+0x38/0x40 net/ipv4/ip_output.c:547
 __tcp_transmit_skb+0x1242/0x1740 net/ipv4/tcp_output.c:1416
 tcp_transmit_skb net/ipv4/tcp_output.c:1434 [inline]
 tcp_write_xmit+0x112b/0x2ec0 net/ipv4/tcp_output.c:2750
 __tcp_push_pending_frames+0x6a/0x1a0 net/ipv4/tcp_output.c:2934
 tcp_push+0x320/0x330 net/ipv4/tcp.c:736
 tcp_sendmsg_locked+0x2177/0x2670 net/ipv4/tcp.c:1304
 tcp_sendmsg+0x30/0x50 net/ipv4/tcp.c:1336
 inet_sendmsg+0x63/0x80 net/ipv4/af_inet.c:840
 sock_sendmsg_nosec net/socket.c:730 [inline]
 sock_sendmsg net/socket.c:753 [inline]
 sock_write_iter+0x1aa/0x230 net/socket.c:1141
 call_write_iter include/linux/fs.h:1985 [inline]
 new_sync_write fs/read_write.c:491 [inline]
 vfs_write+0x4ab/0x7d0 fs/read_write.c:584
 ksys_write+0xeb/0x1a0 fs/read_write.c:637
 __do_sys_write fs/read_write.c:649 [inline]
 __se_sys_write fs/read_write.c:646 [inline]
 __x64_sys_write+0x42/0x50 fs/read_write.c:646
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

value changed: 0x0000 -> 0x0001

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 3271 Comm: syz-fuzzer Not tainted 6.6.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023
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