================================================================== BUG: KCSAN: data-race in virtqueue_disable_cb / virtqueue_disable_cb write to 0xffff888102d62978 of 2 bytes by interrupt on cpu 1: virtqueue_disable_cb_split drivers/virtio/virtio_ring.c:874 [inline] virtqueue_disable_cb+0x85/0x180 drivers/virtio/virtio_ring.c:2566 skb_xmit_done+0x5f/0x140 drivers/net/virtio_net.c:777 vring_interrupt+0x161/0x190 drivers/virtio/virtio_ring.c:2715 __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 kcsan_setup_watchpoint+0x404/0x410 kernel/kcsan/core.c:705 hash_netport4_add+0x7f4/0x1d10 net/netfilter/ipset/ip_set_hash_gen.h:965 hash_netport4_uadt+0x86a/0x990 net/netfilter/ipset/ip_set_hash_netport.c:255 call_ad+0x1a1/0x540 net/netfilter/ipset/ip_set_core.c:1751 ip_set_ad+0x5a5/0x670 net/netfilter/ipset/ip_set_core.c:1841 ip_set_uadd+0x41/0x50 net/netfilter/ipset/ip_set_core.c:1864 nfnetlink_rcv_msg+0x4a9/0x570 net/netfilter/nfnetlink.c:302 netlink_rcv_skb+0x12c/0x230 net/netlink/af_netlink.c:2542 nfnetlink_rcv+0x16c/0x15d0 net/netfilter/nfnetlink.c:667 netlink_unicast_kernel net/netlink/af_netlink.c:1321 [inline] netlink_unicast+0x599/0x670 net/netlink/af_netlink.c:1347 netlink_sendmsg+0x5cc/0x6e0 net/netlink/af_netlink.c:1891 sock_sendmsg_nosec net/socket.c:711 [inline] __sock_sendmsg+0x140/0x180 net/socket.c:726 ____sys_sendmsg+0x312/0x410 net/socket.c:2583 ___sys_sendmsg net/socket.c:2637 [inline] __sys_sendmsg+0x19d/0x230 net/socket.c:2669 __do_sys_sendmsg net/socket.c:2674 [inline] __se_sys_sendmsg net/socket.c:2672 [inline] __x64_sys_sendmsg+0x46/0x50 net/socket.c:2672 x64_sys_call+0x2734/0x2dc0 arch/x86/include/generated/asm/syscalls_64.h:47 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 read to 0xffff888102d62978 of 2 bytes by task 3286 on cpu 0: virtqueue_disable_cb_split drivers/virtio/virtio_ring.c:873 [inline] virtqueue_disable_cb+0x63/0x180 drivers/virtio/virtio_ring.c:2566 start_xmit+0x15c/0x1310 drivers/net/virtio_net.c:3259 __netdev_start_xmit include/linux/netdevice.h:5002 [inline] netdev_start_xmit include/linux/netdevice.h:5011 [inline] xmit_one net/core/dev.c:3590 [inline] dev_hard_start_xmit+0x119/0x3f0 net/core/dev.c:3606 sch_direct_xmit+0x1a9/0x580 net/sched/sch_generic.c:343 __dev_xmit_skb net/core/dev.c:3829 [inline] __dev_queue_xmit+0xf6a/0x2090 net/core/dev.c:4402 dev_queue_xmit include/linux/netdevice.h:3168 [inline] neigh_hh_output include/net/neighbour.h:523 [inline] neigh_output include/net/neighbour.h:537 [inline] ip_finish_output2+0x721/0x890 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+0xbf2/0xc10 net/ipv4/ip_output.c:536 ip_queue_xmit+0x38/0x50 net/ipv4/ip_output.c:550 __tcp_transmit_skb+0x15ca/0x1980 net/ipv4/tcp_output.c:1468 __tcp_send_ack+0x1de/0x300 net/ipv4/tcp_output.c:4272 tcp_send_ack net/ipv4/tcp_output.c:4278 [inline] tcp_release_cb+0x2cb/0x380 net/ipv4/tcp_output.c:1169 release_sock+0x8d/0x150 net/core/sock.c:3643 tcp_recvmsg+0x147/0x490 net/ipv4/tcp.c:2853 inet_recvmsg+0xbd/0x290 net/ipv4/af_inet.c:883 sock_recvmsg_nosec net/socket.c:1033 [inline] sock_recvmsg+0xfe/0x170 net/socket.c:1055 sock_read_iter+0x14c/0x1a0 net/socket.c:1125 new_sync_read fs/read_write.c:484 [inline] vfs_read+0x5dc/0x700 fs/read_write.c:565 ksys_read+0xe8/0x1b0 fs/read_write.c:708 __do_sys_read fs/read_write.c:717 [inline] __se_sys_read fs/read_write.c:715 [inline] __x64_sys_read+0x42/0x50 fs/read_write.c:715 x64_sys_call+0x2874/0x2dc0 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: 3286 Comm: syz-executor Not tainted 6.13.0-rc5-syzkaller-00163-gab75170520d4 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 ==================================================================