Bluetooth: hci1: unexpected event for opcode 0x0c7d
Bluetooth: hci5: advertising data len corrected
Bluetooth: hci5: advertising data len corrected
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BUG: KASAN: slab-out-of-bounds in hci_le_ext_adv_report_evt net/bluetooth/hci_event.c:5467 [inline]
BUG: KASAN: slab-out-of-bounds in hci_le_meta_evt+0x373a/0x3f20 net/bluetooth/hci_event.c:5714
Read of size 2 at addr ffff8880906029d1 by task kworker/u5:3/8151

CPU: 0 PID: 8151 Comm: kworker/u5:3 Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023
Workqueue: hci5 hci_rx_work
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
 print_address_description.cold+0x54/0x219 mm/kasan/report.c:256
 kasan_report_error.cold+0x8a/0x1b9 mm/kasan/report.c:354
 kasan_report mm/kasan/report.c:412 [inline]
 __asan_report_load_n_noabort+0x8b/0xa0 mm/kasan/report.c:443
 hci_le_ext_adv_report_evt net/bluetooth/hci_event.c:5467 [inline]
 hci_le_meta_evt+0x373a/0x3f20 net/bluetooth/hci_event.c:5714
 hci_event_packet+0x34ad/0x7e20 net/bluetooth/hci_event.c:5959
 hci_rx_work+0x4ad/0xc70 net/bluetooth/hci_core.c:4380
 process_one_work+0x864/0x1570 kernel/workqueue.c:2153
 worker_thread+0x64c/0x1130 kernel/workqueue.c:2296
 kthread+0x33f/0x460 kernel/kthread.c:259
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415

Allocated by task 28160:
 __do_kmalloc_node mm/slab.c:3689 [inline]
 __kmalloc_node_track_caller+0x4c/0x70 mm/slab.c:3703
 __kmalloc_reserve net/core/skbuff.c:137 [inline]
 __alloc_skb+0xae/0x560 net/core/skbuff.c:205
 alloc_skb include/linux/skbuff.h:995 [inline]
 bt_skb_alloc include/net/bluetooth/bluetooth.h:339 [inline]
 vhci_get_user drivers/bluetooth/hci_vhci.c:180 [inline]
 vhci_write+0xbd/0x450 drivers/bluetooth/hci_vhci.c:299
 call_write_iter include/linux/fs.h:1821 [inline]
 new_sync_write fs/read_write.c:474 [inline]
 __vfs_write+0x51b/0x770 fs/read_write.c:487
 vfs_write+0x1f3/0x540 fs/read_write.c:549
 ksys_write+0x12b/0x2a0 fs/read_write.c:599
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe

Freed by task 8142:
 __cache_free mm/slab.c:3503 [inline]
 kfree+0xcc/0x210 mm/slab.c:3822
 kvfree+0x59/0x60 mm/util.c:452
 kmem_free fs/xfs/kmem.h:66 [inline]
 xlog_dealloc_log+0x32b/0x4b0 fs/xfs/xfs_log.c:2028
 xfs_unmountfs+0x1b8/0x2b0 fs/xfs/xfs_mount.c:1173
 xfs_fs_put_super+0x62/0x130 fs/xfs/xfs_super.c:1774
 generic_shutdown_super+0x144/0x370 fs/super.c:456
 kill_block_super+0x97/0xf0 fs/super.c:1185
 deactivate_locked_super+0x94/0x160 fs/super.c:329
 deactivate_super+0x174/0x1a0 fs/super.c:360
 cleanup_mnt+0x1a8/0x290 fs/namespace.c:1098
 task_work_run+0x148/0x1c0 kernel/task_work.c:113
 tracehook_notify_resume include/linux/tracehook.h:193 [inline]
 exit_to_usermode_loop+0x251/0x2a0 arch/x86/entry/common.c:167
 prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline]
 syscall_return_slowpath arch/x86/entry/common.c:271 [inline]
 do_syscall_64+0x538/0x620 arch/x86/entry/common.c:296
 entry_SYSCALL_64_after_hwframe+0x49/0xbe

The buggy address belongs to the object at ffff8880906027c0
 which belongs to the cache kmalloc-512 of size 512
The buggy address is located 17 bytes to the right of
 512-byte region [ffff8880906027c0, ffff8880906029c0)
The buggy address belongs to the page:
page:ffffea0002418080 count:1 mapcount:0 mapping:ffff88813bff0940 index:0xffff888090602a40
flags: 0xfff00000000100(slab)
raw: 00fff00000000100 ffffea000284b3c8 ffffea0002d06488 ffff88813bff0940
raw: ffff888090602a40 ffff888090602040 0000000100000003 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff888090602880: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff888090602900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff888090602980: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc
                                                 ^
 ffff888090602a00: fc fc fc fc fc fc fc fc fb fb fb fb fb fb fb fb
 ffff888090602a80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
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