hid-generic 0000:0000:0000.0003: unknown main item tag 0x0 hid-generic 0000:0000:0000.0003: unknown main item tag 0x0 hid-generic 0000:0000:0000.0003: unknown main item tag 0x0 hid-generic 0000:0000:0000.0003: unknown main item tag 0x0 hid-generic 0000:0000:0000.0003: unknown main item tag 0x0 hid-generic 0000:0000:0000.0003: unknown main item tag 0x0 hid-generic 0000:0000:0000.0003: unknown main item tag 0x0 ================================================================== BUG: KCSAN: data-race in _prb_read_valid / data_alloc write to 0xffffffff8686ead8 of 8 bytes by task 19518 on cpu 0: data_alloc+0x271/0x2b0 kernel/printk/printk_ringbuffer.c:1095 prb_reserve+0x808/0xaf0 kernel/printk/printk_ringbuffer.c:1669 vprintk_store+0x56d/0x860 kernel/printk/printk.c:2326 vprintk_emit+0x178/0x650 kernel/printk/printk.c:2426 vprintk_default+0x26/0x30 kernel/printk/printk.c:2465 vprintk+0x1d/0x30 kernel/printk/printk_safe.c:82 _printk+0x79/0xa0 kernel/printk/printk.c:2475 siw_device_register drivers/infiniband/sw/siw/siw_main.c:73 [inline] siw_newlink+0x665/0x680 drivers/infiniband/sw/siw/siw_main.c:430 nldev_newlink+0x369/0x3f0 drivers/infiniband/core/nldev.c:1796 rdma_nl_rcv_msg drivers/infiniband/core/netlink.c:195 [inline] rdma_nl_rcv_skb drivers/infiniband/core/netlink.c:239 [inline] rdma_nl_rcv+0x479/0x5a0 drivers/infiniband/core/netlink.c:259 netlink_unicast_kernel net/netlink/af_netlink.c:1313 [inline] netlink_unicast+0x5a1/0x670 net/netlink/af_netlink.c:1339 netlink_sendmsg+0x58b/0x6b0 net/netlink/af_netlink.c:1883 sock_sendmsg_nosec net/socket.c:712 [inline] __sock_sendmsg+0x145/0x180 net/socket.c:727 ____sys_sendmsg+0x31e/0x4e0 net/socket.c:2566 ___sys_sendmsg+0x17b/0x1d0 net/socket.c:2620 __sys_sendmsg net/socket.c:2652 [inline] __do_sys_sendmsg net/socket.c:2657 [inline] __se_sys_sendmsg net/socket.c:2655 [inline] __x64_sys_sendmsg+0xd4/0x160 net/socket.c:2655 x64_sys_call+0x2999/0x2fb0 arch/x86/include/generated/asm/syscalls_64.h:47 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xd2/0x200 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f read to 0xffffffff8686ead8 of 16 bytes by task 3392 on cpu 1: desc_read kernel/printk/printk_ringbuffer.c:482 [inline] desc_read_finalized_seq kernel/printk/printk_ringbuffer.c:1874 [inline] prb_read kernel/printk/printk_ringbuffer.c:1922 [inline] _prb_read_valid+0x1bc/0x920 kernel/printk/printk_ringbuffer.c:2113 prb_read_valid+0x3c/0x60 kernel/printk/printk_ringbuffer.c:2185 printk_get_next_message+0xc8/0x510 kernel/printk/printk.c:3005 console_emit_next_record kernel/printk/printk.c:3092 [inline] console_flush_all+0x290/0x730 kernel/printk/printk.c:3226 __console_flush_and_unlock kernel/printk/printk.c:3285 [inline] console_unlock+0xa1/0x330 kernel/printk/printk.c:3325 vprintk_emit+0x388/0x650 kernel/printk/printk.c:2450 dev_vprintk_emit+0x242/0x2a0 drivers/base/core.c:4917 dev_printk_emit+0x84/0xb0 drivers/base/core.c:4928 __dev_printk+0xf3/0x110 drivers/base/core.c:4940 _dev_warn+0x9b/0xd0 drivers/base/core.c:4984 hid_parser_main+0x6ff/0x750 drivers/hid/hid-core.c:-1 hid_open_report+0x48e/0x7a0 drivers/hid/hid-core.c:1328 hid_parse include/linux/hid.h:1133 [inline] hid_generic_probe+0x33/0x70 drivers/hid/hid-generic.c:66 __hid_device_probe drivers/hid/hid-core.c:2724 [inline] hid_device_probe+0x2c5/0x490 drivers/hid/hid-core.c:2761 call_driver_probe drivers/base/dd.c:-1 [inline] really_probe+0x1bc/0x5a0 drivers/base/dd.c:657 __driver_probe_device+0x121/0x190 drivers/base/dd.c:799 driver_probe_device+0x37/0x2f0 drivers/base/dd.c:829 __device_attach_driver+0x205/0x310 drivers/base/dd.c:957 bus_for_each_drv+0x1bd/0x230 drivers/base/bus.c:462 __device_attach+0x1c7/0x290 drivers/base/dd.c:1029 device_initial_probe+0x1a/0x30 drivers/base/dd.c:1078 bus_probe_device+0x143/0x1d0 drivers/base/bus.c:537 device_add+0x5c9/0x770 drivers/base/core.c:3692 hid_add_device+0x273/0x2f0 drivers/hid/hid-core.c:2907 uhid_device_add_worker+0x2b/0xa0 drivers/hid/uhid.c:73 process_one_work kernel/workqueue.c:3238 [inline] process_scheduled_works+0x4cb/0x9d0 kernel/workqueue.c:3321 worker_thread+0x582/0x770 kernel/workqueue.c:3402 kthread+0x489/0x510 kernel/kthread.c:464 ret_from_fork+0xda/0x150 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 Reported by Kernel Concurrency Sanitizer on: CPU: 1 UID: 0 PID: 3392 Comm: kworker/1:4 Not tainted 6.16.0-rc4-syzkaller-00108-g17bbde2e1716 #0 PREEMPT(voluntary) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 Workqueue: events uhid_device_add_worker ================================================================== hid-generic 0000:0000:0000.0003: unknown main item tag 0x0 hid-generic 0000:0000:0000.0003: unknown main item tag 0x0 hid-generic 0000:0000:0000.0003: unknown main item tag 0x0 hid-generic 0000:0000:0000.0003: unknown main item tag 0x0 hid-generic 0000:0000:0000.0003: unknown main item tag 0x0 hid-generic 0000:0000:0000.0003: unknown main item tag 0x0 hid-generic 0000:0000:0000.0003: unknown main item tag 0x0 hid-generic 0000:0000:0000.0003: unknown main item tag 0x0 hid-generic 0000:0000:0000.0003: unknown main item tag 0x0 hid-generic 0000:0000:0000.0003: unknown main item tag 0x0 hid-generic 0000:0000:0000.0003: unknown main item tag 0x0 hid-generic 0000:0000:0000.0003: unknown main item tag 0x0 hid-generic 0000:0000:0000.0003: unknown main item tag 0x0 hid-generic 0000:0000:0000.0003: unknown main item tag 0x0 hid-generic 0000:0000:0000.0003: unknown main item tag 0x0 hid-generic 0000:0000:0000.0003: unknown main item tag 0x0 hid-generic 0000:0000:0000.0003: unknown main item tag 0x0 hid-generic 0000:0000:0000.0003: hidraw0: HID v8.00 Device [syz1] on syz0