Bluetooth: hci3: command 0x040f tx timeout Bluetooth: hci0: command 0x040f tx timeout Bluetooth: hci7: command 0x040f tx timeout ================================================================== BUG: KASAN: use-after-free in __lock_acquire+0x42c9/0x5e70 Read of size 8 at addr ffff88800db126d8 by task kmemleak/54 CPU: 0 PID: 54 Comm: kmemleak Not tainted 6.0.0-rc2-next-20220823 #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.cold+0x5e/0x5e5 kasan_report+0xb1/0x1c0 __lock_acquire+0x42c9/0x5e70 lock_acquire+0x1a2/0x530 _raw_spin_lock_irq+0x32/0x50 kmemleak_scan+0x21d/0x16f0 kmemleak_scan_thread+0x8f/0xb1 kthread+0x2ed/0x3a0 ret_from_fork+0x22/0x30 Allocated by task 183: kasan_save_stack+0x1e/0x40 __kasan_slab_alloc+0x66/0x80 kmem_cache_alloc+0x1b1/0x4a0 __create_object.isra.0+0x3d/0xc10 kmemleak_alloc_percpu+0x9d/0x160 pcpu_alloc+0x834/0x10f0 __percpu_counter_init+0x10d/0x2e0 wb_init+0x607/0x810 wb_get_create+0x23a/0x1180 __inode_attach_wb+0x2e6/0x880 __mark_inode_dirty+0x9b2/0xf00 touch_atime+0x644/0x700 filemap_read+0xb16/0xd10 generic_file_read_iter+0x3cd/0x530 ext4_file_read_iter+0x182/0x400 __kernel_read+0x2cb/0x7d0 kernel_read+0xbf/0x1c0 bprm_execve+0x70e/0x1920 do_execveat_common+0x72c/0x890 __x64_sys_execve+0x8f/0xc0 do_syscall_64+0x3b/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd Freed by task 13: kasan_save_stack+0x1e/0x40 kasan_set_track+0x21/0x30 kasan_set_free_info+0x20/0x40 __kasan_slab_free+0x108/0x190 kmem_cache_free+0xfb/0x610 rcu_core+0x7e2/0x2080 __do_softirq+0x1c8/0x8d0 Last potentially related work creation: kasan_save_stack+0x1e/0x40 __kasan_record_aux_stack+0x97/0xb0 call_rcu+0x6a/0xa30 kmemleak_free_percpu+0xf5/0x160 free_percpu+0x2c/0xec0 percpu_counter_destroy+0x11a/0x1c0 wb_exit+0x76/0xb0 cgwb_release_workfn+0x25d/0x3f0 process_one_work+0xa0f/0x1690 worker_thread+0x637/0x1260 kthread+0x2ed/0x3a0 ret_from_fork+0x22/0x30 Second to last potentially related work creation: kasan_save_stack+0x1e/0x40 __kasan_record_aux_stack+0x97/0xb0 call_rcu+0x6a/0xa30 kmem_cache_free+0xc1/0x610 exit_mmap+0x24f/0x680 mmput+0xd1/0x390 do_exit+0xb44/0x2940 do_group_exit+0xd0/0x2a0 __x64_sys_exit_group+0x3a/0x50 do_syscall_64+0x3b/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd The buggy address belongs to the object at ffff88800db126c0 which belongs to the cache kmemleak_object of size 368 The buggy address is located 24 bytes inside of 368-byte region [ffff88800db126c0, ffff88800db12830) The buggy address belongs to the physical page: page:00000000c01a8ca9 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0xdb12 head:00000000c01a8ca9 order:1 compound_mapcount:0 compound_pincount:0 flags: 0x100000000010200(slab|head|node=0|zone=1) raw: 0100000000010200 0000000000000000 dead000000000001 ffff888007c4f780 raw: 0000000000000000 0000000000120012 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff88800db12580: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff88800db12600: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >ffff88800db12680: fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb fb ^ ffff88800db12700: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff88800db12780: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ==================================================================