==================================================================
BUG: KASAN: null-ptr-deref in instrument_atomic_write include/linux/instrumented.h:86 [inline]
BUG: KASAN: null-ptr-deref in set_bit include/asm-generic/bitops/instrumented-atomic.h:28 [inline]
BUG: KASAN: null-ptr-deref in amp_read_loc_assoc_final_data+0x115/0x260 net/bluetooth/amp.c:304
Write of size 8 at addr 0000000000000030 by task kworker/u5:1/8455

CPU: 0 PID: 8455 Comm: kworker/u5:1 Not tainted 5.11.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: hci2 hci_rx_work
Call Trace:
 __dump_stack lib/dump_stack.c:79 [inline]
 dump_stack+0x137/0x1be lib/dump_stack.c:120
 __kasan_report mm/kasan/report.c:400 [inline]
 kasan_report+0x154/0x200 mm/kasan/report.c:413
 check_memory_region_inline mm/kasan/generic.c:134 [inline]
 check_memory_region+0x2b5/0x2f0 mm/kasan/generic.c:185
 instrument_atomic_write include/linux/instrumented.h:86 [inline]
 set_bit include/asm-generic/bitops/instrumented-atomic.h:28 [inline]
 amp_read_loc_assoc_final_data+0x115/0x260 net/bluetooth/amp.c:304
 hci_chan_selected_evt net/bluetooth/hci_event.c:4943 [inline]
 hci_event_packet+0x619/0x18e0 net/bluetooth/hci_event.c:6296
 hci_rx_work+0x229/0x410 net/bluetooth/hci_core.c:4971
 process_one_work+0x789/0xfc0 kernel/workqueue.c:2275
 worker_thread+0xac1/0x1300 kernel/workqueue.c:2421
 kthread+0x39a/0x3c0 kernel/kthread.c:292
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296
==================================================================
Kernel panic - not syncing: panic_on_warn set ...
CPU: 0 PID: 8455 Comm: kworker/u5:1 Tainted: G    B             5.11.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: hci2 hci_rx_work
Call Trace:
 __dump_stack lib/dump_stack.c:79 [inline]
 dump_stack+0x137/0x1be lib/dump_stack.c:120
 panic+0x291/0x800 kernel/panic.c:231
 end_report mm/kasan/report.c:100 [inline]
 __kasan_report mm/kasan/report.c:403 [inline]
 kasan_report+0x1fb/0x200 mm/kasan/report.c:413
 check_memory_region_inline mm/kasan/generic.c:134 [inline]
 check_memory_region+0x2b5/0x2f0 mm/kasan/generic.c:185
 instrument_atomic_write include/linux/instrumented.h:86 [inline]
 set_bit include/asm-generic/bitops/instrumented-atomic.h:28 [inline]
 amp_read_loc_assoc_final_data+0x115/0x260 net/bluetooth/amp.c:304
 hci_chan_selected_evt net/bluetooth/hci_event.c:4943 [inline]
 hci_event_packet+0x619/0x18e0 net/bluetooth/hci_event.c:6296
 hci_rx_work+0x229/0x410 net/bluetooth/hci_core.c:4971
 process_one_work+0x789/0xfc0 kernel/workqueue.c:2275
 worker_thread+0xac1/0x1300 kernel/workqueue.c:2421
 kthread+0x39a/0x3c0 kernel/kthread.c:292
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296
Kernel Offset: disabled
Rebooting in 86400 seconds..