hid-generic 0000:0000:0000.00AA: unknown main item tag 0x0 hid-generic 0000:0000:0000.00AA: unknown main item tag 0x0 hid-generic 0000:0000:0000.00AA: unknown main item tag 0x0 hid-generic 0000:0000:0000.00AA: unknown main item tag 0x0 ================================================================== BUG: KCSAN: data-race in _prb_read_valid / prb_reserve write to 0xffffffff866e5920 of 8 bytes by task 26491 on cpu 0: prb_reserve+0x740/0xb60 vprintk_store+0x558/0x870 kernel/printk/printk.c:2326 vprintk_emit+0x15e/0x680 kernel/printk/printk.c:2408 vprintk_default+0x26/0x30 kernel/printk/printk.c:2447 vprintk+0x75/0x80 kernel/printk/printk_safe.c:86 _printk+0x7a/0xa0 kernel/printk/printk.c:2457 __ext4_msg+0x18e/0x1a0 fs/ext4/super.c:998 ext4_check_feature_compatibility+0x5da/0x5e0 fs/ext4/super.c:4714 __ext4_fill_super fs/ext4/super.c:5315 [inline] ext4_fill_super+0x20dc/0x3a10 fs/ext4/super.c:5733 get_tree_bdev_flags+0x29f/0x310 fs/super.c:1636 get_tree_bdev+0x1f/0x30 fs/super.c:1659 ext4_get_tree+0x1c/0x30 fs/ext4/super.c:5765 vfs_get_tree+0x56/0x1e0 fs/super.c:1814 do_new_mount+0x227/0x690 fs/namespace.c:3511 path_mount+0x49b/0xb30 fs/namespace.c:3838 do_mount fs/namespace.c:3851 [inline] __do_sys_mount fs/namespace.c:4061 [inline] __se_sys_mount+0x27c/0x2d0 fs/namespace.c:4038 __x64_sys_mount+0x67/0x80 fs/namespace.c:4038 x64_sys_call+0x2c84/0x2dc0 arch/x86/include/generated/asm/syscalls_64.h:166 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 0xffffffff866e5920 of 8 bytes by task 3374 on cpu 1: desc_read kernel/printk/printk_ringbuffer.c:486 [inline] prb_first_seq kernel/printk/printk_ringbuffer.c:1957 [inline] _prb_read_valid+0x3bb/0xba0 kernel/printk/printk_ringbuffer.c:2114 prb_read_valid+0x3d/0x60 kernel/printk/printk_ringbuffer.c:2182 printk_get_next_message+0xd4/0x710 kernel/printk/printk.c:2989 console_emit_next_record kernel/printk/printk.c:3076 [inline] console_flush_all+0x28a/0x770 kernel/printk/printk.c:3210 __console_flush_and_unlock kernel/printk/printk.c:3269 [inline] console_unlock+0xab/0x330 kernel/printk/printk.c:3309 vprintk_emit+0x3f4/0x680 kernel/printk/printk.c:2432 dev_vprintk_emit+0x1df/0x210 drivers/base/core.c:4935 dev_printk_emit+0x82/0xb0 drivers/base/core.c:4946 __dev_printk+0xf6/0x110 drivers/base/core.c:4958 _dev_warn+0x99/0xc0 drivers/base/core.c:5002 hid_parser_main+0x622/0x680 drivers/hid/hid-core.c:660 hid_open_report+0x541/0x7c0 drivers/hid/hid-core.c:1322 hid_parse include/linux/hid.h:1123 [inline] hid_generic_probe+0x33/0x70 drivers/hid/hid-generic.c:66 __hid_device_probe drivers/hid/hid-core.c:2718 [inline] hid_device_probe+0x259/0x440 drivers/hid/hid-core.c:2755 really_probe+0x1cf/0x5d0 drivers/base/dd.c:658 __driver_probe_device+0x12d/0x200 drivers/base/dd.c:800 driver_probe_device+0x38/0x2f0 drivers/base/dd.c:830 __device_attach_driver+0x216/0x320 drivers/base/dd.c:958 bus_for_each_drv+0x1cd/0x240 drivers/base/bus.c:459 __device_attach+0x1c7/0x290 drivers/base/dd.c:1030 device_initial_probe+0x1a/0x20 drivers/base/dd.c:1079 bus_probe_device+0x141/0x1d0 drivers/base/bus.c:534 device_add+0x5e2/0x790 drivers/base/core.c:3665 hid_add_device+0x26e/0x2f0 drivers/hid/hid-core.c:2901 uhid_device_add_worker+0x2b/0xa0 drivers/hid/uhid.c:73 process_one_work kernel/workqueue.c:3236 [inline] process_scheduled_works+0x483/0x9a0 kernel/workqueue.c:3317 worker_thread+0x51d/0x6f0 kernel/workqueue.c:3398 kthread+0x1d1/0x210 kernel/kthread.c:389 ret_from_fork+0x4b/0x60 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 value changed: 0x0000000000002ed4 -> 0x0000000000004ed4 Reported by Kernel Concurrency Sanitizer on: CPU: 1 UID: 0 PID: 3374 Comm: kworker/1:4 Not tainted 6.13.0-rc6-syzkaller-00231-g77a903cd8e5a #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Workqueue: events uhid_device_add_worker ================================================================== hid-generic 0000:0000:0000.00AA: unknown main item tag 0x0 hid-generic 0000:0000:0000.00AA: unknown main item tag 0x0 hid-generic 0000:0000:0000.00AA: unknown main item tag 0x0 hid-generic 0000:0000:0000.00AA: unknown main item tag 0x0 hid-generic 0000:0000:0000.00AA: unknown main item tag 0x0 hid-generic 0000:0000:0000.00AA: unknown main item tag 0x0 hid-generic 0000:0000:0000.00AA: unknown main item tag 0x0 hid-generic 0000:0000:0000.00AA: unknown main item tag 0x0 hid-generic 0000:0000:0000.00AA: unknown main item tag 0x0 hid-generic 0000:0000:0000.00AA: unknown main item tag 0x0 hid-generic 0000:0000:0000.00AA: unknown main item tag 0x0 hid-generic 0000:0000:0000.00AA: unknown main item tag 0x0 hid-generic 0000:0000:0000.00AA: unknown main item tag 0x0 hid-generic 0000:0000:0000.00AA: unknown main item tag 0x0 hid-generic 0000:0000:0000.00AA: unknown main item tag 0x0 hid-generic 0000:0000:0000.00AA: unknown main item tag 0x0 hid-generic 0000:0000:0000.00AA: unknown main item tag 0x0 hid-generic 0000:0000:0000.00AA: unknown main item tag 0x0 hid-generic 0000:0000:0000.00AA: unknown main item tag 0x0 hid-generic 0000:0000:0000.00AA: unknown main item tag 0x0 hid-generic 0000:0000:0000.00AA: unknown main item tag 0x0 hid-generic 0000:0000:0000.00AA: unknown main item tag 0x0 hid-generic 0000:0000:0000.00AA: unknown main item tag 0x0 hid-generic 0000:0000:0000.00AA: unknown main item tag 0x0 hid-generic 0000:0000:0000.00AA: unknown main item tag 0x0 hid-generic 0000:0000:0000.00AA: hidraw0: HID v0.00 Device [syz0] on syz1