================================================================== BUG: KASAN: slab-use-after-free in report_descriptor_read+0xbb/0x100 drivers/hid/hid-core.c:2279 Read of size 5 at addr ffff8881042fa780 by task fido_id/25871 CPU: 0 UID: 0 PID: 25871 Comm: fido_id Not tainted syzkaller #0 PREEMPT(lazy) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/06/2026 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x100/0x190 lib/dump_stack.c:120 print_address_description mm/kasan/report.c:378 [inline] print_report+0x13d/0x4b0 mm/kasan/report.c:482 kasan_report+0xdf/0x1c0 mm/kasan/report.c:595 check_region_inline mm/kasan/generic.c:186 [inline] kasan_check_range+0x10f/0x1e0 mm/kasan/generic.c:200 __asan_memcpy+0x23/0x60 mm/kasan/shadow.c:105 report_descriptor_read+0xbb/0x100 drivers/hid/hid-core.c:2279 sysfs_kf_bin_read+0x156/0x210 fs/sysfs/file.c:102 kernfs_file_read_iter fs/kernfs/file.c:262 [inline] kernfs_fop_read_iter+0x32b/0x610 fs/kernfs/file.c:291 new_sync_read fs/read_write.c:493 [inline] vfs_read+0x82e/0xb40 fs/read_write.c:574 ksys_read+0x12a/0x250 fs/read_write.c:716 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline] do_syscall_64+0x119/0x710 arch/x86/entry/syscall_64.c:84 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f90bd5ec407 Code: 48 89 fa 4c 89 df e8 38 aa 00 00 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 <5b> c3 0f 1f 80 00 00 00 00 83 e2 39 83 fa 08 75 de e8 23 ff ff ff RSP: 002b:00007ffde5f46b70 EFLAGS: 00000202 ORIG_RAX: 0000000000000000 RAX: ffffffffffffffda RBX: 00007f90bd4fe880 RCX: 00007f90bd5ec407 RDX: 0000000000001000 RSI: 00007ffde5f46bc0 RDI: 0000000000000004 RBP: 000055e15ec732c0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000202 R12: 000055e15ec724c0 R13: 00007ffde5f46bc0 R14: 0000000000000004 R15: 000055e1355df4d8 Allocated by task 5419: kasan_save_stack+0x30/0x50 mm/kasan/common.c:57 kasan_save_track+0x14/0x30 mm/kasan/common.c:78 poison_kmalloc_redzone mm/kasan/common.c:409 [inline] __kasan_kmalloc+0x8f/0xa0 mm/kasan/common.c:426 kasan_kmalloc include/linux/kasan.h:263 [inline] __do_kmalloc_node mm/slub.c:5531 [inline] __kmalloc_node_track_caller_noprof+0x323/0x810 mm/slub.c:5662 kmemdup_noprof+0x29/0x60 mm/util.c:138 kmemdup_noprof include/linux/fortify-string.h:713 [inline] hid_open_report+0x214/0x810 drivers/hid/hid-core.c:1382 hid_parse include/linux/hid.h:1208 [inline] joycon_probe drivers/hid/hid-nintendo.c:2756 [inline] nintendo_hid_probe+0x385/0xe60 drivers/hid/hid-nintendo.c:4527 __hid_device_probe drivers/hid/hid-core.c:2839 [inline] hid_device_probe+0x4fe/0x850 drivers/hid/hid-core.c:2878 call_driver_probe drivers/base/dd.c:629 [inline] really_probe+0x241/0xa60 drivers/base/dd.c:707 __driver_probe_device+0x210/0x460 drivers/base/dd.c:869 driver_probe_device+0x4a/0x140 drivers/base/dd.c:899 __device_attach_driver+0x1df/0x320 drivers/base/dd.c:1027 bus_for_each_drv+0x159/0x1e0 drivers/base/bus.c:500 __device_attach+0x1e4/0x4c0 drivers/base/dd.c:1131 device_initial_probe+0xaf/0xf0 drivers/base/dd.c:1190 __bus_probe_device+0x60/0x160 drivers/base/bus.c:614 device_add+0x121d/0x1970 drivers/base/core.c:3778 hid_add_device+0x2bf/0x440 drivers/hid/hid-core.c:3065 usbhid_probe+0xa64/0x10b0 drivers/hid/usbhid/hid-core.c:1459 usb_probe_interface+0x386/0x980 drivers/usb/core/driver.c:399 call_driver_probe drivers/base/dd.c:629 [inline] really_probe+0x241/0xa60 drivers/base/dd.c:707 __driver_probe_device+0x210/0x460 drivers/base/dd.c:869 driver_probe_device+0x4a/0x140 drivers/base/dd.c:899 __device_attach_driver+0x1df/0x320 drivers/base/dd.c:1027 bus_for_each_drv+0x159/0x1e0 drivers/base/bus.c:500 __device_attach+0x1e4/0x4c0 drivers/base/dd.c:1131 device_initial_probe+0xaf/0xf0 drivers/base/dd.c:1190 __bus_probe_device+0x60/0x160 drivers/base/bus.c:614 device_add+0x121d/0x1970 drivers/base/core.c:3778 usb_set_configuration+0xd97/0x1dc0 drivers/usb/core/message.c:2280 usb_generic_driver_probe+0xa1/0xe0 drivers/usb/core/generic.c:250 usb_probe_device+0xef/0x400 drivers/usb/core/driver.c:293 call_driver_probe drivers/base/dd.c:629 [inline] really_probe+0x241/0xa60 drivers/base/dd.c:707 __driver_probe_device+0x210/0x460 drivers/base/dd.c:869 driver_probe_device+0x4a/0x140 drivers/base/dd.c:899 __device_attach_driver+0x1df/0x320 drivers/base/dd.c:1027 bus_for_each_drv+0x159/0x1e0 drivers/base/bus.c:500 __device_attach+0x1e4/0x4c0 drivers/base/dd.c:1131 device_initial_probe+0xaf/0xf0 drivers/base/dd.c:1190 __bus_probe_device+0x60/0x160 drivers/base/bus.c:614 device_add+0x121d/0x1970 drivers/base/core.c:3778 usb_new_device.part.0+0xcc2/0x1686 drivers/usb/core/hub.c:2713 usb_new_device drivers/usb/core/hub.c:5838 [inline] hub_port_connect drivers/usb/core/hub.c:5585 [inline] hub_port_connect_change drivers/usb/core/hub.c:5725 [inline] port_event drivers/usb/core/hub.c:5889 [inline] hub_event.cold+0x51a/0xe9d drivers/usb/core/hub.c:5971 process_one_work+0xac7/0x1b10 kernel/workqueue.c:3495 process_scheduled_works kernel/workqueue.c:3578 [inline] worker_thread+0x5ef/0xe50 kernel/workqueue.c:3659 kthread+0x373/0x450 kernel/kthread.c:436 ret_from_fork+0x69f/0xc90 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 The buggy address belongs to the object at ffff8881042fa780 which belongs to the cache kmalloc-8 of size 8 The buggy address is located 0 bytes inside of freed 8-byte region [ffff8881042fa780, ffff8881042fa788) The buggy address belongs to the physical page: page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1042fa flags: 0x200000000000000(node=0|zone=2) page_type: f5(slab) raw: 0200000000000000 ffff888100041500 dead000000000100 dead000000000122 raw: 0000000000000000 0000000000800080 00000000f5000000 0000000000000000 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0xd2cc0(GFP_KERNEL|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 1, tgid 1 (swapper/0), ts 3368822168 set_page_owner include/linux/page_owner.h:33 [inline] post_alloc_hook+0xfd/0x120 mm/page_alloc.c:1856 prep_new_page mm/page_alloc.c:1864 [inline] get_page_from_freelist+0xf4b/0x3440 mm/page_alloc.c:3935 __alloc_frozen_pages_noprof+0x299/0x2d50 mm/page_alloc.c:5444 alloc_slab_page mm/slub.c:3384 [inline] allocate_slab mm/slub.c:3499 [inline] new_slab+0xb1/0x6d0 mm/slub.c:3550 refill_objects+0xe3/0x410 mm/slub.c:7539 refill_sheaf mm/slub.c:2917 [inline] __pcs_replace_empty_main+0x35e/0x650 mm/slub.c:4811 alloc_from_pcs mm/slub.c:4887 [inline] slab_alloc_node mm/slub.c:5021 [inline] __do_kmalloc_node mm/slub.c:5530 [inline] __kmalloc_noprof+0x617/0x7e0 mm/slub.c:5556 _kmalloc_noprof include/linux/slab.h:995 [inline] _kzalloc_noprof include/linux/slab.h:1312 [inline] acpi_ns_internalize_name+0x161/0x2e0 drivers/acpi/acpica/nsutils.c:331 acpi_ns_get_node_unlocked+0x18c/0x500 drivers/acpi/acpica/nsutils.c:666 acpi_ns_get_node+0x6c/0xf0 drivers/acpi/acpica/nsutils.c:726 acpi_get_handle+0x10a/0x280 drivers/acpi/acpica/nsxfname.c:98 acpi_has_method+0x7a/0xc0 drivers/acpi/utils.c:705 acpi_bay_match+0x76/0x120 drivers/acpi/scan.c:1231 is_ejectable_bay drivers/acpi/scan.c:1259 [inline] acpi_scan_init_hotplug drivers/acpi/scan.c:2061 [inline] acpi_bus_check_add+0x4ae/0x970 drivers/acpi/scan.c:2182 acpi_ns_walk_namespace+0x4cc/0x760 drivers/acpi/acpica/nswalk.c:236 acpi_walk_namespace+0xff/0x1d0 drivers/acpi/acpica/nsxfeval.c:606 page last free pid 1 tgid 1 ts 3193135071 stack trace: reset_page_owner include/linux/page_owner.h:26 [inline] __free_pages_prepare mm/page_alloc.c:1403 [inline] __free_frozen_pages+0x714/0xfc0 mm/page_alloc.c:2954 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x47/0xf0 mm/kasan/quarantine.c:179 kasan_quarantine_remove_cache+0x168/0x190 mm/kasan/quarantine.c:388 kmem_cache_shrink+0xd/0x20 mm/slab_common.c:620 acpi_os_purge_cache+0x15/0x20 drivers/acpi/osl.c:1622 acpi_purge_cached_objects+0xa3/0x140 drivers/acpi/acpica/utxface.c:239 acpi_initialize_objects+0x8b/0x100 drivers/acpi/acpica/utxfinit.c:250 acpi_bus_init drivers/acpi/bus.c:1381 [inline] acpi_init+0x1b0/0x840 drivers/acpi/bus.c:1471 do_one_initcall+0x11c/0x6f0 init/main.c:1419 do_initcall_level init/main.c:1481 [inline] do_initcalls init/main.c:1497 [inline] do_basic_setup init/main.c:1517 [inline] kernel_init_freeable+0x6ea/0x7b0 init/main.c:1732 kernel_init+0x21/0x1e0 init/main.c:1622 ret_from_fork+0x69f/0xc90 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 Memory state around the buggy address: ffff8881042fa680: fa fc fc fc fa fc fc fc fa fc fc fc fa fc fc fc ffff8881042fa700: fa fc fc fc fa fc fc fc fa fc fc fc fa fc fc fc >ffff8881042fa780: fb fc fc fc fa fc fc fc fa fc fc fc fa fc fc fc ^ ffff8881042fa800: fa fc fc fc fa fc fc fc fa fc fc fc fa fc fc fc ffff8881042fa880: fa fc fc fc fa fc fc fc fa fc fc fc fa fc fc fc ==================================================================