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BUG: KCSAN: data-race in virtqueue_disable_cb / virtqueue_disable_cb

read to 0xffff8881028f9978 of 2 bytes by interrupt on cpu 1:
 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:715
 vring_interrupt+0x161/0x190 drivers/virtio/virtio_ring.c:2595
 __handle_irq_event_percpu+0x95/0x490 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:247 [inline]
 call_irq_handler arch/x86/kernel/irq.c:259 [inline]
 __common_interrupt+0x58/0xe0 arch/x86/kernel/irq.c:285
 common_interrupt+0x7c/0x90 arch/x86/kernel/irq.c:278
 asm_common_interrupt+0x26/0x40 arch/x86/include/asm/idtentry.h:693
 memcg1_commit_charge+0xde/0x1e0
 mem_cgroup_commit_charge mm/memcontrol.c:2388 [inline]
 charge_memcg+0x9e/0xc0 mm/memcontrol.c:4472
 __mem_cgroup_charge+0x29/0xb0 mm/memcontrol.c:4483
 mem_cgroup_charge include/linux/memcontrol.h:694 [inline]
 shmem_alloc_and_add_folio mm/shmem.c:1818 [inline]
 shmem_get_folio_gfp+0x47e/0xd90 mm/shmem.c:2330
 shmem_fault+0xfa/0x250 mm/shmem.c:2531
 __do_fault+0xb6/0x200 mm/memory.c:4871
 do_read_fault mm/memory.c:5286 [inline]
 do_fault mm/memory.c:5420 [inline]
 do_pte_missing mm/memory.c:3965 [inline]
 handle_pte_fault mm/memory.c:5755 [inline]
 __handle_mm_fault mm/memory.c:5898 [inline]
 handle_mm_fault+0xe7f/0x2a80 mm/memory.c:6066
 faultin_page mm/gup.c:1187 [inline]
 __get_user_pages+0xf2c/0x2670 mm/gup.c:1485
 populate_vma_page_range mm/gup.c:1923 [inline]
 __mm_populate+0x25b/0x3b0 mm/gup.c:2026
 mm_populate include/linux/mm.h:3371 [inline]
 vm_mmap_pgoff+0x1d6/0x290 mm/util.c:593
 ksys_mmap_pgoff+0xd0/0x330 mm/mmap.c:542
 x64_sys_call+0x1884/0x2d60 arch/x86/include/generated/asm/syscalls_64.h:10
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xc9/0x1c0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

write to 0xffff8881028f9978 of 2 bytes by task 3257 on cpu 0:
 virtqueue_disable_cb_split drivers/virtio/virtio_ring.c:886 [inline]
 virtqueue_disable_cb+0x85/0x180 drivers/virtio/virtio_ring.c:2446
 start_xmit+0x14b/0x1260 drivers/net/virtio_net.c:3067
 __netdev_start_xmit include/linux/netdevice.h:4916 [inline]
 netdev_start_xmit include/linux/netdevice.h:4925 [inline]
 xmit_one net/core/dev.c:3588 [inline]
 dev_hard_start_xmit+0x119/0x3f0 net/core/dev.c:3604
 sch_direct_xmit+0x1a9/0x580 net/sched/sch_generic.c:343
 __dev_xmit_skb net/core/dev.c:3821 [inline]
 __dev_queue_xmit+0xf1a/0x2040 net/core/dev.c:4394
 dev_queue_xmit include/linux/netdevice.h:3094 [inline]
 neigh_hh_output include/net/neighbour.h:526 [inline]
 neigh_output include/net/neighbour.h:540 [inline]
 ip_finish_output2+0x73d/0x8b0 net/ipv4/ip_output.c:236
 ip_finish_output+0x11a/0x2a0 net/ipv4/ip_output.c:324
 NF_HOOK_COND include/linux/netfilter.h:303 [inline]
 ip_output+0xab/0x170 net/ipv4/ip_output.c:434
 dst_output include/net/dst.h:450 [inline]
 ip_local_out net/ipv4/ip_output.c:130 [inline]
 __ip_queue_xmit+0xbcc/0xbf0 net/ipv4/ip_output.c:536
 ip_queue_xmit+0x38/0x50 net/ipv4/ip_output.c:550
 __tcp_transmit_skb+0x15b0/0x1970 net/ipv4/tcp_output.c:1466
 __tcp_send_ack+0x1de/0x2e0 net/ipv4/tcp_output.c:4268
 tcp_send_ack+0x27/0x30 net/ipv4/tcp_output.c:4274
 __tcp_cleanup_rbuf+0x149/0x280 net/ipv4/tcp.c:1505
 tcp_cleanup_rbuf net/ipv4/tcp.c:1516 [inline]
 tcp_recvmsg_locked+0x1be3/0x2100 net/ipv4/tcp.c:2821
 tcp_recvmsg+0x13c/0x490 net/ipv4/tcp.c:2851
 inet_recvmsg+0xbd/0x290 net/ipv4/af_inet.c:885
 sock_recvmsg_nosec net/socket.c:1051 [inline]
 sock_recvmsg+0xfe/0x170 net/socket.c:1073
 sock_read_iter+0x14c/0x1a0 net/socket.c:1143
 new_sync_read fs/read_write.c:488 [inline]
 vfs_read+0x5f6/0x720 fs/read_write.c:569
 ksys_read+0xeb/0x1b0 fs/read_write.c:712
 __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+0x27d3/0x2d60 arch/x86/include/generated/asm/syscalls_64.h:1
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xc9/0x1c0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

value changed: 0x0000 -> 0x0001

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 UID: 0 PID: 3257 Comm: syz-executor Not tainted 6.12.0-rc4-syzkaller-00047-gc2ee9f594da8 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
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