syzbot

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BUG: KCSAN: data-race in virtqueue_disable_cb / virtqueue_enable_cb_delayed

write to 0xffff88810230305a of 1 bytes by task 3108 on cpu 0:
 virtqueue_enable_cb_delayed+0x42/0x3d0 drivers/virtio/virtio_ring.c:2429
 start_xmit+0xdf/0xaa0 drivers/net/virtio_net.c:2008
 __netdev_start_xmit include/linux/netdevice.h:4883 [inline]
 netdev_start_xmit include/linux/netdevice.h:4897 [inline]
 xmit_one net/core/dev.c:3580 [inline]
 dev_hard_start_xmit+0x11b/0x3f0 net/core/dev.c:3596
 sch_direct_xmit+0x1b0/0x570 net/sched/sch_generic.c:342
 __dev_xmit_skb net/core/dev.c:3807 [inline]
 __dev_queue_xmit+0xf4a/0x1e60 net/core/dev.c:4212
 dev_queue_xmit include/linux/netdevice.h:3053 [inline]
 neigh_hh_output include/net/neighbour.h:530 [inline]
 neigh_output include/net/neighbour.h:544 [inline]
 ip_finish_output2+0x6ff/0x840 net/ipv4/ip_output.c:228
 ip_finish_output+0xf4/0x240 net/ipv4/ip_output.c:316
 NF_HOOK_COND include/linux/netfilter.h:291 [inline]
 ip_output+0xe5/0x1b0 net/ipv4/ip_output.c:430
 dst_output include/net/dst.h:444 [inline]
 ip_local_out net/ipv4/ip_output.c:126 [inline]
 __ip_queue_xmit+0xa4d/0xa70 net/ipv4/ip_output.c:532
 ip_queue_xmit+0x38/0x40 net/ipv4/ip_output.c:546
 __tcp_transmit_skb+0x1165/0x16c0 net/ipv4/tcp_output.c:1399
 __tcp_send_ack+0x1e0/0x2d0 net/ipv4/tcp_output.c:3983
 tcp_send_ack+0x27/0x30 net/ipv4/tcp_output.c:3989
 __tcp_cleanup_rbuf+0x145/0x250 net/ipv4/tcp.c:1618
 tcp_cleanup_rbuf net/ipv4/tcp.c:1629 [inline]
 tcp_recvmsg_locked+0x109d/0x1540 net/ipv4/tcp.c:2651
 tcp_recvmsg+0x13b/0x490 net/ipv4/tcp.c:2681
 inet_recvmsg+0xa2/0x210 net/ipv4/af_inet.c:859
 sock_recvmsg_nosec net/socket.c:1017 [inline]
 sock_recvmsg net/socket.c:1038 [inline]
 sock_read_iter+0x1a0/0x210 net/socket.c:1116
 call_read_iter include/linux/fs.h:1845 [inline]
 new_sync_read fs/read_write.c:389 [inline]
 vfs_read+0x39a/0x560 fs/read_write.c:470
 ksys_read+0xeb/0x1a0 fs/read_write.c:613
 __do_sys_read fs/read_write.c:623 [inline]
 __se_sys_read fs/read_write.c:621 [inline]
 __x64_sys_read+0x42/0x50 fs/read_write.c:621
 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

read to 0xffff88810230305a of 1 bytes by interrupt on cpu 1:
 virtqueue_disable_cb+0x1b/0x170 drivers/virtio/virtio_ring.c:2336
 virtqueue_napi_schedule drivers/net/virtio_net.c:394 [inline]
 skb_xmit_done+0xa9/0x110 drivers/net/virtio_net.c:422
 vring_interrupt+0x150/0x170 drivers/virtio/virtio_ring.c:2491
 __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:819
 generic_handle_irq_desc include/linux/irqdesc.h:158 [inline]
 handle_irq arch/x86/kernel/irq.c:231 [inline]
 __common_interrupt+0x3c/0xb0 arch/x86/kernel/irq.c:250
 common_interrupt+0x7a/0x90 arch/x86/kernel/irq.c:240
 asm_common_interrupt+0x26/0x40 arch/x86/include/asm/idtentry.h:636
 native_safe_halt arch/x86/include/asm/irqflags.h:48 [inline]
 arch_safe_halt arch/x86/include/asm/irqflags.h:86 [inline]
 acpi_safe_halt+0x20/0x30 drivers/acpi/processor_idle.c:112
 acpi_idle_do_entry+0x19/0x30 drivers/acpi/processor_idle.c:573
 acpi_idle_enter+0x96/0xb0 drivers/acpi/processor_idle.c:711
 cpuidle_enter_state+0xc6/0x260 drivers/cpuidle/cpuidle.c:267
 cpuidle_enter+0x40/0x60 drivers/cpuidle/cpuidle.c:388
 call_cpuidle kernel/sched/idle.c:134 [inline]
 cpuidle_idle_call kernel/sched/idle.c:215 [inline]
 do_idle+0x194/0x240 kernel/sched/idle.c:282
 cpu_startup_entry+0x18/0x20 kernel/sched/idle.c:379
 start_secondary+0x7c/0x80 arch/x86/kernel/smpboot.c:264
 secondary_startup_64_no_verify+0xcf/0xdb

value changed: 0x01 -> 0x00

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.3.0-rc5-syzkaller-00005-g148341f0a2f5 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023
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