================================================================== BUG: KCSAN: data-race in virtqueue_disable_cb / vring_interrupt write to 0xffff88810328425a of 1 bytes by interrupt on cpu 1: vring_interrupt+0x128/0x170 drivers/virtio/virtio_ring.c:2487 __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+0x17f/0x5a0 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+0x64/0x100 arch/x86/kernel/irq.c:250 common_interrupt+0x9e/0xc0 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+0xbe/0xe0 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+0x1a3/0x250 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 read to 0xffff88810328425a of 1 bytes by task 3229 on cpu 0: virtqueue_disable_cb+0x1b/0x170 drivers/virtio/virtio_ring.c:2336 start_xmit+0xcc/0xab0 drivers/net/virtio_net.c:2003 __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+0x127/0x400 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+0xf61/0x1eb0 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+0x6fe/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 value changed: 0x00 -> 0x01 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 3229 Comm: syz-fuzzer Not tainted 6.3.0-rc4-syzkaller-00034-gfcd476ea6a88 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/17/2023 ==================================================================