================================================================== BUG: KCSAN: data-race in virtual_nci_send / virtual_ncidev_read write to 0xffff8881391b3f28 of 8 bytes by task 1474 on cpu 0: virtual_nci_send+0x84/0xe0 drivers/nfc/virtual_ncidev.c:58 nci_send_frame net/nfc/nci/core.c:1347 [inline] nci_cmd_work+0x15c/0x1a0 net/nfc/nci/core.c:1567 process_one_work+0x434/0x860 kernel/workqueue.c:2597 worker_thread+0x5f2/0xa10 kernel/workqueue.c:2748 kthread+0x1d7/0x210 kernel/kthread.c:389 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 read to 0xffff8881391b3f28 of 8 bytes by task 5986 on cpu 1: virtual_ncidev_read+0xd4/0x2b0 drivers/nfc/virtual_ncidev.c:86 vfs_read+0x19f/0x5c0 fs/read_write.c:468 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: 0x0000000000000000 -> 0xffff88813ab6aa00 Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 5986 Comm: syz-executor.3 Not tainted 6.4.0-syzkaller-10096-gdfab92f27c60 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 ==================================================================