input: Wacom Intuos2 12x18 Pen as /devices/platform/dummy_hcd.3/usb4/4-1/4-1:0.0/0003:056A:0045.0001/input/input5 ================================================================== BUG: KASAN: slab-use-after-free in __list_del_entry_valid_or_report+0x2f/0x140 lib/list_debug.c:49 Read of size 8 at addr ffff888032abf208 by task kworker/1:0/25 CPU: 1 UID: 0 PID: 25 Comm: kworker/1:0 Not tainted 6.12.0-syzkaller-10553-gb86545e02e8c #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Workqueue: events binder_deferred_func Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120 print_address_description mm/kasan/report.c:378 [inline] print_report+0x169/0x550 mm/kasan/report.c:489 kasan_report+0x143/0x180 mm/kasan/report.c:602 __list_del_entry_valid_or_report+0x2f/0x140 lib/list_debug.c:49 __list_del_entry_valid include/linux/list.h:124 [inline] __list_del_entry include/linux/list.h:215 [inline] list_del_init include/linux/list.h:287 [inline] binder_dequeue_work_head_ilocked drivers/android/binder.c:540 [inline] binder_release_work+0xc7/0x480 drivers/android/binder.c:5110 binder_deferred_release drivers/android/binder.c:6261 [inline] binder_deferred_func+0x1275/0x1460 drivers/android/binder.c:6296 process_one_work kernel/workqueue.c:3229 [inline] process_scheduled_works+0xa63/0x1850 kernel/workqueue.c:3310 worker_thread+0x870/0xd30 kernel/workqueue.c:3391 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 Allocated by task 5947: kasan_save_stack mm/kasan/common.c:47 [inline] kasan_save_track+0x3f/0x80 mm/kasan/common.c:68 poison_kmalloc_redzone mm/kasan/common.c:377 [inline] __kasan_kmalloc+0x98/0xb0 mm/kasan/common.c:394 kasan_kmalloc include/linux/kasan.h:260 [inline] __kmalloc_cache_noprof+0x243/0x390 mm/slub.c:4314 kmalloc_noprof include/linux/slab.h:901 [inline] kzalloc_noprof include/linux/slab.h:1037 [inline] binder_request_freeze_notification drivers/android/binder.c:3855 [inline] binder_thread_write drivers/android/binder.c:4485 [inline] binder_ioctl_write_read+0xe7f/0xb560 drivers/android/binder.c:5387 binder_ioctl+0x436/0x1cc0 drivers/android/binder.c:5718 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:906 [inline] __se_sys_ioctl+0xf5/0x170 fs/ioctl.c:892 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f Freed by task 25: kasan_save_stack mm/kasan/common.c:47 [inline] kasan_save_track+0x3f/0x80 mm/kasan/common.c:68 kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:582 poison_slab_object mm/kasan/common.c:247 [inline] __kasan_slab_free+0x59/0x70 mm/kasan/common.c:264 kasan_slab_free include/linux/kasan.h:233 [inline] slab_free_hook mm/slub.c:2338 [inline] slab_free mm/slub.c:4598 [inline] kfree+0x196/0x420 mm/slub.c:4746 binder_free_ref drivers/android/binder.c:1355 [inline] binder_deferred_release drivers/android/binder.c:6256 [inline] binder_deferred_func+0x11df/0x1460 drivers/android/binder.c:6296 process_one_work kernel/workqueue.c:3229 [inline] process_scheduled_works+0xa63/0x1850 kernel/workqueue.c:3310 worker_thread+0x870/0xd30 kernel/workqueue.c:3391 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 The buggy address belongs to the object at ffff888032abf200 which belongs to the cache kmalloc-64 of size 64 The buggy address is located 8 bytes inside of freed 64-byte region [ffff888032abf200, ffff888032abf240) The buggy address belongs to the physical page: page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x32abf anon flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) page_type: f5(slab) raw: 00fff00000000000 ffff88801ac418c0 ffffea0000b23b80 dead000000000005 raw: 0000000000000000 0000000080200020 00000001f5000000 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 0x52cc0(GFP_KERNEL|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP), pid 5183, tgid 5183 (mount), ts 16485496851, free_ts 15679365147 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1556 prep_new_page mm/page_alloc.c:1564 [inline] get_page_from_freelist+0x363e/0x3790 mm/page_alloc.c:3474 __alloc_pages_noprof+0x292/0x710 mm/page_alloc.c:4751 alloc_pages_mpol_noprof+0x3e8/0x680 mm/mempolicy.c:2265 alloc_slab_page+0x6a/0x140 mm/slub.c:2408 allocate_slab+0x5a/0x2f0 mm/slub.c:2574 new_slab mm/slub.c:2627 [inline] ___slab_alloc+0xcd1/0x14b0 mm/slub.c:3815 __slab_alloc+0x58/0xa0 mm/slub.c:3905 __slab_alloc_node mm/slub.c:3980 [inline] slab_alloc_node mm/slub.c:4141 [inline] __kmalloc_cache_noprof+0x27b/0x390 mm/slub.c:4309 kmalloc_noprof include/linux/slab.h:901 [inline] __kthread_create_on_node+0xee/0x3c0 kernel/kthread.c:436 kthread_create_on_node+0xde/0x130 kernel/kthread.c:513 ext4_run_lazyinit_thread fs/ext4/super.c:3898 [inline] ext4_register_li_request+0x5c5/0x970 fs/ext4/super.c:4033 __ext4_remount fs/ext4/super.c:6737 [inline] ext4_reconfigure+0x2dee/0x3990 fs/ext4/super.c:6801 reconfigure_super+0x445/0x880 fs/super.c:1083 do_remount fs/namespace.c:3047 [inline] path_mount+0xc22/0xfa0 fs/namespace.c:3826 do_mount fs/namespace.c:3847 [inline] __do_sys_mount fs/namespace.c:4057 [inline] __se_sys_mount+0x2d6/0x3c0 fs/namespace.c:4034 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:1127 [inline] free_unref_page+0xded/0x1130 mm/page_alloc.c:2657 kasan_depopulate_vmalloc_pte+0x74/0x90 mm/kasan/shadow.c:408 apply_to_pte_range mm/memory.c:2831 [inline] apply_to_pmd_range mm/memory.c:2875 [inline] apply_to_pud_range mm/memory.c:2911 [inline] apply_to_p4d_range mm/memory.c:2947 [inline] __apply_to_page_range+0x806/0xde0 mm/memory.c:2981 kasan_release_vmalloc+0xa5/0xd0 mm/kasan/shadow.c:529 kasan_release_vmalloc_node mm/vmalloc.c:2196 [inline] purge_vmap_node+0x22f/0x8d0 mm/vmalloc.c:2213 __purge_vmap_area_lazy+0x708/0xae0 mm/vmalloc.c:2304 _vm_unmap_aliases+0x79d/0x840 mm/vmalloc.c:2899 change_page_attr_set_clr+0x2fe/0xdb0 arch/x86/mm/pat/set_memory.c:1881 change_page_attr_set arch/x86/mm/pat/set_memory.c:1922 [inline] set_memory_nx+0xf2/0x130 arch/x86/mm/pat/set_memory.c:2110 free_init_pages arch/x86/mm/init.c:929 [inline] free_kernel_image_pages arch/x86/mm/init.c:948 [inline] free_initmem+0x79/0x110 arch/x86/mm/init.c:975 kernel_init+0x31/0x2b0 init/main.c:1475 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 Memory state around the buggy address: ffff888032abf100: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc ffff888032abf180: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc >ffff888032abf200: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc ^ ffff888032abf280: 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc fc ffff888032abf300: 00 00 00 00 00 00 00 02 fc fc fc fc fc fc fc fc ==================================================================