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BUG: KCSAN: data-race in virtqueue_disable_cb / virtqueue_disable_cb

read to 0xffff888102211a78 of 2 bytes by interrupt on cpu 1:
 virtqueue_disable_cb_split drivers/virtio/virtio_ring.c:873 [inline]
 virtqueue_disable_cb+0x63/0x180 drivers/virtio/virtio_ring.c:2566
 skb_xmit_done+0x5f/0x140 drivers/net/virtio_net.c:755
 vring_interrupt+0x164/0x190 drivers/virtio/virtio_ring.c:2715
 __handle_irq_event_percpu+0x97/0x490 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+0x16d/0x5b0 kernel/irq/chip.c:831
 generic_handle_irq_desc include/linux/irqdesc.h:173 [inline]
 handle_irq arch/x86/kernel/irq.c:254 [inline]
 call_irq_handler arch/x86/kernel/irq.c:266 [inline]
 __common_interrupt+0x58/0xe0 arch/x86/kernel/irq.c:292
 common_interrupt+0x7c/0x90 arch/x86/kernel/irq.c:285
 asm_common_interrupt+0x26/0x40 arch/x86/include/asm/idtentry.h:693
 __tsan_read8+0xe/0x180 kernel/kcsan/core.c:1025
 exit_task_stack_account+0x1dd/0x2d0 kernel/fork.c:545
 do_exit+0x1073/0x17e0 kernel/exit.c:994
 kthread_exit+0x92/0x190 kernel/kthread.c:337
 kthread+0x4c1/0x540 kernel/kthread.c:466
 ret_from_fork+0x4b/0x60 arch/x86/kernel/process.c:153
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

write to 0xffff888102211a78 of 2 bytes by task 3290 on cpu 0:
 virtqueue_disable_cb_split drivers/virtio/virtio_ring.c:874 [inline]
 virtqueue_disable_cb+0x85/0x180 drivers/virtio/virtio_ring.c:2566
 start_xmit+0x12c/0x1480 drivers/net/virtio_net.c:3298
 __netdev_start_xmit include/linux/netdevice.h:5203 [inline]
 netdev_start_xmit include/linux/netdevice.h:5212 [inline]
 xmit_one net/core/dev.c:3774 [inline]
 dev_hard_start_xmit+0x12e/0x400 net/core/dev.c:3790
 sch_direct_xmit+0x1ab/0x590 net/sched/sch_generic.c:343
 __dev_xmit_skb net/core/dev.c:4016 [inline]
 __dev_queue_xmit+0xf7a/0x20b0 net/core/dev.c:4593
 dev_queue_xmit include/linux/netdevice.h:3350 [inline]
 neigh_hh_output include/net/neighbour.h:523 [inline]
 neigh_output include/net/neighbour.h:537 [inline]
 ip_finish_output2+0x740/0x8b0 net/ipv4/ip_output.c:235
 __ip_finish_output net/ipv4/ip_output.c:-1 [inline]
 ip_finish_output+0x11d/0x2a0 net/ipv4/ip_output.c:323
 NF_HOOK_COND include/linux/netfilter.h:303 [inline]
 ip_output+0xb7/0x190 net/ipv4/ip_output.c:433
 dst_output include/net/dst.h:459 [inline]
 ip_local_out net/ipv4/ip_output.c:129 [inline]
 __ip_queue_xmit+0xb32/0xb50 net/ipv4/ip_output.c:527
 ip_queue_xmit+0x38/0x50 net/ipv4/ip_output.c:541
 __tcp_transmit_skb+0x160a/0x1a20 net/ipv4/tcp_output.c:1479
 __tcp_send_ack+0x20c/0x330 net/ipv4/tcp_output.c:4280
 tcp_send_ack+0x29/0x30 net/ipv4/tcp_output.c:4286
 __tcp_cleanup_rbuf+0x149/0x280 net/ipv4/tcp.c:1514
 tcp_cleanup_rbuf net/ipv4/tcp.c:1525 [inline]
 tcp_recvmsg_locked+0x1b8f/0x20b0 net/ipv4/tcp.c:2848
 tcp_recvmsg+0x13e/0x490 net/ipv4/tcp.c:2878
 inet_recvmsg+0xc0/0x2a0 net/ipv4/af_inet.c:883
 sock_recvmsg_nosec net/socket.c:1017 [inline]
 sock_recvmsg+0xfe/0x170 net/socket.c:1039
 sock_read_iter+0x14f/0x1a0 net/socket.c:1109
 new_sync_read fs/read_write.c:489 [inline]
 vfs_read+0x5e6/0x710 fs/read_write.c:570
 ksys_read+0xeb/0x1b0 fs/read_write.c:713
 __do_sys_read fs/read_write.c:722 [inline]
 __se_sys_read fs/read_write.c:720 [inline]
 __x64_sys_read+0x42/0x50 fs/read_write.c:720
 x64_sys_call+0x2a3b/0x2e10 arch/x86/include/generated/asm/syscalls_64.h:1
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xc9/0x1c0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

value changed: 0x0000 -> 0x0001

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 UID: 0 PID: 3290 Comm: syz-executor Not tainted 6.15.0-rc1-syzkaller-00325-g7cdabafc0012 #0 PREEMPT(voluntary) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
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