================================================================== BUG: KASAN: slab-use-after-free in report_descriptor_read+0xb5/0x100 drivers/hid/hid-core.c:2226 Read of size 41 at addr ffff888024d73500 by task fido_id/8055 CPU: 1 UID: 0 PID: 8055 Comm: fido_id Tainted: G L syzkaller #0 PREEMPT(full) Tainted: [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 print_address_description+0x55/0x1e0 mm/kasan/report.c:378 print_report+0x58/0x70 mm/kasan/report.c:482 kasan_report+0x117/0x150 mm/kasan/report.c:595 check_region_inline mm/kasan/generic.c:-1 [inline] kasan_check_range+0x264/0x2c0 mm/kasan/generic.c:200 __asan_memcpy+0x29/0x70 mm/kasan/shadow.c:105 report_descriptor_read+0xb5/0x100 drivers/hid/hid-core.c:2226 kernfs_file_read_iter fs/kernfs/file.c:269 [inline] kernfs_fop_read_iter+0x451/0x6b0 fs/kernfs/file.c:298 new_sync_read fs/read_write.c:493 [inline] vfs_read+0x582/0xa70 fs/read_write.c:574 ksys_read+0x150/0x270 fs/read_write.c:717 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7faccdaa7407 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:00007ffef61b2770 EFLAGS: 00000202 ORIG_RAX: 0000000000000000 RAX: ffffffffffffffda RBX: 00007facce161880 RCX: 00007faccdaa7407 RDX: 0000000000001000 RSI: 00007ffef61b27c0 RDI: 0000000000000004 RBP: 000055c4250ae730 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000202 R12: 000055c4250ad930 R13: 00007ffef61b27c0 R14: 0000000000000004 R15: 000055c3ebdf94d8 Allocated by task 1182: kasan_save_stack mm/kasan/common.c:57 [inline] kasan_save_track+0x3e/0x80 mm/kasan/common.c:78 poison_kmalloc_redzone mm/kasan/common.c:398 [inline] __kasan_kmalloc+0x93/0xb0 mm/kasan/common.c:415 kasan_kmalloc include/linux/kasan.h:263 [inline] __do_kmalloc_node mm/slub.c:5295 [inline] __kmalloc_node_track_caller_noprof+0x4db/0x7b0 mm/slub.c:5403 kmemdup_noprof+0x2b/0x70 mm/util.c:138 kmemdup_noprof include/linux/fortify-string.h:763 [inline] hid_open_report+0x1f7/0xf00 drivers/hid/hid-core.c:1376 hid_parse include/linux/hid.h:1204 [inline] kye_probe+0x21/0x5f0 drivers/hid/hid-kye.c:579 __hid_device_probe drivers/hid/hid-core.c:2783 [inline] hid_device_probe+0x416/0x7a0 drivers/hid/hid-core.c:2820 call_driver_probe drivers/base/dd.c:-1 [inline] really_probe+0x267/0xaf0 drivers/base/dd.c:709 __driver_probe_device+0x1ef/0x380 drivers/base/dd.c:871 driver_probe_device+0x4f/0x240 drivers/base/dd.c:901 __device_attach_driver+0x279/0x430 drivers/base/dd.c:1029 bus_for_each_drv+0x258/0x2f0 drivers/base/bus.c:500 __device_attach+0x2c5/0x450 drivers/base/dd.c:1101 device_initial_probe+0xa1/0xd0 drivers/base/dd.c:1156 bus_probe_device+0x12a/0x220 drivers/base/bus.c:613 device_add+0x7e9/0xbb0 drivers/base/core.c:3706 hid_add_device+0x272/0x3e0 drivers/hid/hid-core.c:2964 usbhid_probe+0xbab/0x1080 drivers/hid/usbhid/hid-core.c:1448 usb_probe_interface+0x659/0xc70 drivers/usb/core/driver.c:396 call_driver_probe drivers/base/dd.c:-1 [inline] really_probe+0x267/0xaf0 drivers/base/dd.c:709 __driver_probe_device+0x1ef/0x380 drivers/base/dd.c:871 driver_probe_device+0x4f/0x240 drivers/base/dd.c:901 __device_attach_driver+0x279/0x430 drivers/base/dd.c:1029 bus_for_each_drv+0x258/0x2f0 drivers/base/bus.c:500 __device_attach+0x2c5/0x450 drivers/base/dd.c:1101 device_initial_probe+0xa1/0xd0 drivers/base/dd.c:1156 bus_probe_device+0x12a/0x220 drivers/base/bus.c:613 device_add+0x7e9/0xbb0 drivers/base/core.c:3706 usb_set_configuration+0x1a87/0x2110 drivers/usb/core/message.c:2268 usb_generic_driver_probe+0x8d/0x150 drivers/usb/core/generic.c:250 usb_probe_device+0x1c4/0x3b0 drivers/usb/core/driver.c:291 call_driver_probe drivers/base/dd.c:-1 [inline] really_probe+0x267/0xaf0 drivers/base/dd.c:709 __driver_probe_device+0x1ef/0x380 drivers/base/dd.c:871 driver_probe_device+0x4f/0x240 drivers/base/dd.c:901 __device_attach_driver+0x279/0x430 drivers/base/dd.c:1029 bus_for_each_drv+0x258/0x2f0 drivers/base/bus.c:500 __device_attach+0x2c5/0x450 drivers/base/dd.c:1101 device_initial_probe+0xa1/0xd0 drivers/base/dd.c:1156 bus_probe_device+0x12a/0x220 drivers/base/bus.c:613 device_add+0x7e9/0xbb0 drivers/base/core.c:3706 usb_new_device+0xa08/0x16f0 drivers/usb/core/hub.c:2695 hub_port_connect drivers/usb/core/hub.c:5567 [inline] hub_port_connect_change drivers/usb/core/hub.c:5707 [inline] port_event drivers/usb/core/hub.c:5871 [inline] hub_event+0x2a1c/0x4f30 drivers/usb/core/hub.c:5953 process_one_work kernel/workqueue.c:3302 [inline] process_scheduled_works+0xb5d/0x1860 kernel/workqueue.c:3385 worker_thread+0xa53/0xfc0 kernel/workqueue.c:3466 kthread+0x388/0x470 kernel/kthread.c:436 ret_from_fork+0x514/0xb70 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 ffff888024d73500 which belongs to the cache kmalloc-64 of size 64 The buggy address is located 0 bytes inside of freed 64-byte region [ffff888024d73500, ffff888024d73540) The buggy address belongs to the physical page: page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x24d73 flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) page_type: f5(slab) raw: 00fff00000000000 ffff88813fe2e8c0 dead000000000100 dead000000000122 raw: 0000000000000000 0000000800200020 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 0xd2c40(GFP_NOFS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 5214, tgid 5214 (udevadm), ts 37047721524, free_ts 34104284068 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x231/0x280 mm/page_alloc.c:1858 prep_new_page mm/page_alloc.c:1866 [inline] get_page_from_freelist+0x24ba/0x2540 mm/page_alloc.c:3946 __alloc_frozen_pages_noprof+0x18d/0x380 mm/page_alloc.c:5226 alloc_slab_page mm/slub.c:3278 [inline] allocate_slab+0x77/0x660 mm/slub.c:3467 new_slab mm/slub.c:3525 [inline] refill_objects+0x339/0x3d0 mm/slub.c:7251 refill_sheaf mm/slub.c:2816 [inline] __pcs_replace_empty_main+0x321/0x720 mm/slub.c:4651 alloc_from_pcs mm/slub.c:4749 [inline] slab_alloc_node mm/slub.c:4883 [inline] __do_kmalloc_node mm/slub.c:5294 [inline] __kmalloc_noprof+0x474/0x760 mm/slub.c:5307 kmalloc_noprof include/linux/slab.h:954 [inline] kzalloc_noprof include/linux/slab.h:1188 [inline] tomoyo_commit_ok+0x29/0x1d0 security/tomoyo/memory.c:76 tomoyo_update_domain+0x54a/0x880 security/tomoyo/domain.c:139 tomoyo_update_path_acl security/tomoyo/file.c:402 [inline] tomoyo_write_file+0x3d1/0xc50 security/tomoyo/file.c:1027 tomoyo_write_domain2 security/tomoyo/common.c:1160 [inline] tomoyo_add_entry security/tomoyo/common.c:2177 [inline] tomoyo_supervisor+0x1208/0x1570 security/tomoyo/common.c:2238 tomoyo_audit_path_log security/tomoyo/file.c:169 [inline] tomoyo_path_permission+0x25a/0x380 security/tomoyo/file.c:592 tomoyo_check_open_permission+0x2b2/0x470 security/tomoyo/file.c:782 security_file_open+0xa9/0x240 security/security.c:2739 do_dentry_open+0x384/0x14e0 fs/open.c:924 vfs_open+0x3b/0x340 fs/open.c:1079 page last free pid 1 tgid 1 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] __free_pages_prepare mm/page_alloc.c:1402 [inline] __free_frozen_pages+0xbc7/0xd30 mm/page_alloc.c:2943 kasan_depopulate_vmalloc_pte+0x6d/0x90 mm/kasan/shadow.c:484 apply_to_pte_range mm/memory.c:3322 [inline] apply_to_pmd_range mm/memory.c:3366 [inline] apply_to_pud_range mm/memory.c:3402 [inline] apply_to_p4d_range mm/memory.c:3438 [inline] __apply_to_page_range+0xbdc/0x1420 mm/memory.c:3474 __kasan_release_vmalloc+0xa2/0xd0 mm/kasan/shadow.c:602 kasan_release_vmalloc include/linux/kasan.h:593 [inline] kasan_release_vmalloc_node mm/vmalloc.c:2284 [inline] purge_vmap_node+0x220/0x960 mm/vmalloc.c:2306 __purge_vmap_area_lazy+0x779/0xb40 mm/vmalloc.c:2396 _vm_unmap_aliases+0x73d/0x7e0 mm/vmalloc.c:2990 change_page_attr_set_clr+0x305/0xf70 arch/x86/mm/pat/set_memory.c:2095 change_page_attr_set arch/x86/mm/pat/set_memory.c:2136 [inline] set_memory_nx+0xd6/0x110 arch/x86/mm/pat/set_memory.c:2312 free_init_pages arch/x86/mm/init.c:933 [inline] free_kernel_image_pages+0x85/0x100 arch/x86/mm/init.c:952 kernel_init+0x31/0x1d0 init/main.c:1602 ret_from_fork+0x514/0xb70 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: ffff888024d73400: 00 00 00 00 00 00 05 fc fc fc fc fc fc fc fc fc ffff888024d73480: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc >ffff888024d73500: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc ^ ffff888024d73580: 00 00 00 00 00 00 fc fc fc fc fc fc fc fc fc fc ffff888024d73600: 00 00 00 00 00 fc fc fc fc fc fc fc fc fc fc fc ==================================================================