Bluetooth: hci5: command 0x0419 tx timeout Bluetooth: hci2: command 0x041b tx timeout Bluetooth: hci2: command 0x040f tx timeout ================================================================== BUG: KASAN: use-after-free in __lock_acquire+0x42c9/0x5e70 Read of size 8 at addr ffff88801a519458 by task kmemleak/54 CPU: 1 PID: 54 Comm: kmemleak Not tainted 6.0.0-rc6-next-20220923 #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/0x16e0 kmemleak_scan_thread+0x8f/0xb1 kthread+0x2ed/0x3a0 ret_from_fork+0x22/0x30 Allocated by task 978: kasan_save_stack+0x1e/0x40 kasan_set_track+0x21/0x30 __kasan_slab_alloc+0x58/0x70 kmem_cache_alloc+0x1b1/0x3e0 __create_object+0x3d/0xc10 kmem_cache_alloc_bulk+0x3fe/0x7a0 mas_alloc_nodes+0x2ff/0x800 mas_preallocate+0x1bb/0x360 vma_expand+0x1cc/0xb50 mmap_region+0xca6/0x1a00 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 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 vma_expand+0x3f7/0xb50 mmap_region+0xca6/0x1a00 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+0xda/0x150 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 ffff88801a519440 which belongs to the cache kmemleak_object of size 368 The buggy address is located 24 bytes inside of 368-byte region [ffff88801a519440, ffff88801a5195b0) The buggy address belongs to the physical page: page:00000000ce3ade2d refcount:1 mapcount:0 mapping:0000000000000000 index:0xffffea00006946a0 pfn:0x1a518 head:00000000ce3ade2d order:1 compound_mapcount:0 compound_pincount:0 flags: 0x100000000010200(slab|head|node=0|zone=1) raw: 0100000000010200 ffff888007c4f780 dead00000012000e ffff88801a519440 raw: ffffea00006946a0 ffffea00003c94a0 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff88801a519300: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff88801a519380: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >ffff88801a519400: fc fc fc fc fc fc fc fc fb fb fb fb fb fb fb fb ^ ffff88801a519480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff88801a519500: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ================================================================== Bluetooth: hci2: command 0x0419 tx timeout