Bluetooth: hci5: command 0x0419 tx timeout Bluetooth: hci7: command 0x041b tx timeout Bluetooth: hci7: command 0x040f tx timeout ================================================================== BUG: KASAN: use-after-free in __lock_acquire+0x42c9/0x5e70 Read of size 8 at addr ffff888008afc018 by task kmemleak/54 CPU: 1 PID: 54 Comm: kmemleak Not tainted 6.0.0-rc7-next-20220930 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014 Call Trace: dump_stack_lvl+0x8b/0xb3 print_report+0x172/0x475 kasan_report+0xbb/0x1c0 __lock_acquire+0x42c9/0x5e70 lock_acquire+0x1a2/0x530 _raw_spin_lock_irq+0x32/0x50 kmemleak_scan+0x21d/0x16d0 kmemleak_scan_thread+0x8f/0xb1 kthread+0x2ed/0x3a0 ret_from_fork+0x22/0x30 Allocated by task 982: kasan_save_stack+0x1e/0x40 kasan_set_track+0x21/0x30 __kasan_slab_alloc+0x58/0x70 kmem_cache_alloc+0x1a9/0x3e0 __create_object+0x3d/0xc10 kmem_cache_alloc_bulk+0x414/0x7d0 mas_alloc_nodes+0x2ff/0x800 mas_preallocate+0x1bb/0x360 mmap_region+0x774/0x1a00 do_mmap+0x828/0xf40 vm_mmap_pgoff+0x1af/0x270 ksys_mmap_pgoff+0x3d0/0x4f0 do_syscall_64+0x3b/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd Freed by task 986: kasan_save_stack+0x1e/0x40 kasan_set_track+0x21/0x30 kasan_save_free_info+0x2a/0x50 __kasan_slab_free+0x106/0x190 kmem_cache_free+0xf7/0x610 rcu_core+0x7e2/0x2080 __do_softirq+0x1c3/0x8f5 Last potentially related work creation: kasan_save_stack+0x1e/0x40 __kasan_record_aux_stack+0x95/0xb0 call_rcu+0x6a/0xa30 kmem_cache_free_bulk.part.0+0x305/0x770 mas_destroy+0x380/0x560 mas_store_prealloc+0xf0/0x160 mmap_region+0xdc5/0x1a00 do_mmap+0x828/0xf40 vm_mmap_pgoff+0x1af/0x270 ksys_mmap_pgoff+0x3d0/0x4f0 do_syscall_64+0x3b/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd Second to last potentially related work creation: kasan_save_stack+0x1e/0x40 __kasan_record_aux_stack+0x95/0xb0 call_rcu+0x6a/0xa30 kmemleak_free_percpu+0x9a/0x120 free_percpu+0x2c/0xec0 percpu_counter_destroy+0x11a/0x1c0 wb_exit+0x76/0xb0 cgwb_release_workfn+0x25d/0x3f0 process_one_work+0xa17/0x16a0 worker_thread+0x637/0x1260 kthread+0x2ed/0x3a0 ret_from_fork+0x22/0x30 The buggy address belongs to the object at ffff888008afc000 which belongs to the cache kmemleak_object of size 368 The buggy address is located 24 bytes inside of 368-byte region [ffff888008afc000, ffff888008afc170) The buggy address belongs to the physical page: page:00000000b0a1000c refcount:1 mapcount:0 mapping:0000000000000000 index:0xffffea000023ed80 pfn:0x8afc head:00000000b0a1000c order:1 compound_mapcount:0 compound_pincount:0 flags: 0x100000000010200(slab|head|node=0|zone=1) raw: 0100000000010200 ffff888007c4f780 dead000000120012 0000000000000000 raw: ffffea000023ed80 dead000000000002 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff888008afbf00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff888008afbf80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc >ffff888008afc000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff888008afc080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff888008afc100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fc fc ==================================================================