Bluetooth: hci0: hardware error 0x00
=========================
WARNING: held lock freed!
6.0.0-rc6-syzkaller-00281-g1707c39ae309 #0 Not tainted
-------------------------
kworker/u5:3/3641 is freeing memory ffff88801795a000-ffff88801795a7ff, with a lock still held there!
ffff88801795a520 (&chan->lock/1){+.+.}-{3:3}, at: l2cap_chan_lock include/net/bluetooth/l2cap.h:855 [inline]
ffff88801795a520 (&chan->lock/1){+.+.}-{3:3}, at: l2cap_conn_del+0x3b5/0x7b0 net/bluetooth/l2cap_core.c:1920
7 locks held by kworker/u5:3/3641:
#0: ffff888076bce138 ((wq_completion)hci0){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff888076bce138 ((wq_completion)hci0){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff888076bce138 ((wq_completion)hci0){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
#0: ffff888076bce138 ((wq_completion)hci0){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline]
#0: ffff888076bce138 ((wq_completion)hci0){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline]
#0: ffff888076bce138 ((wq_completion)hci0){+.+.}-{0:0}, at: process_one_work+0x87a/0x1610 kernel/workqueue.c:2260
#1: ffffc900040ffda8 ((work_completion)(&hdev->error_reset)){+.+.}-{0:0}, at: process_one_work+0x8ae/0x1610 kernel/workqueue.c:2264
#2: ffff888074dd0fd0 (&hdev->req_lock){+.+.}-{3:3}, at: hci_dev_do_close+0x25/0x70 net/bluetooth/hci_core.c:552
#3: ffff888074dd0078 (&hdev->lock){+.+.}-{3:3}, at: hci_dev_close_sync+0x268/0x1130 net/bluetooth/hci_sync.c:4463
#4: ffffffff8d9d3e28 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_disconn_cfm include/net/bluetooth/hci_core.h:1776 [inline]
#4: ffffffff8d9d3e28 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_conn_hash_flush+0xd5/0x260 net/bluetooth/hci_conn.c:2366
#5: ffff888078068ad8 (&conn->chan_lock){+.+.}-{3:3}, at: l2cap_conn_del+0x2ef/0x7b0 net/bluetooth/l2cap_core.c:1915
#6: ffff88801795a520 (&chan->lock/1){+.+.}-{3:3}, at: l2cap_chan_lock include/net/bluetooth/l2cap.h:855 [inline]
#6: ffff88801795a520 (&chan->lock/1){+.+.}-{3:3}, at: l2cap_conn_del+0x3b5/0x7b0 net/bluetooth/l2cap_core.c:1920
stack backtrace:
CPU: 0 PID: 3641 Comm: kworker/u5:3 Not tainted 6.0.0-rc6-syzkaller-00281-g1707c39ae309 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022
Workqueue: hci0 hci_error_reset
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
print_freed_lock_bug kernel/locking/lockdep.c:6422 [inline]
debug_check_no_locks_freed.cold+0x9d/0xa9 kernel/locking/lockdep.c:6455
slab_free_hook mm/slub.c:1731 [inline]
slab_free_freelist_hook+0x73/0x1c0 mm/slub.c:1785
slab_free mm/slub.c:3539 [inline]
kfree+0xe2/0x580 mm/slub.c:4567
l2cap_chan_destroy net/bluetooth/l2cap_core.c:503 [inline]
kref_put include/linux/kref.h:65 [inline]
l2cap_chan_put+0x22a/0x2d0 net/bluetooth/l2cap_core.c:527
l2cap_conn_del+0x3fc/0x7b0 net/bluetooth/l2cap_core.c:1924
l2cap_disconn_cfm net/bluetooth/l2cap_core.c:8212 [inline]
l2cap_disconn_cfm+0x8c/0xc0 net/bluetooth/l2cap_core.c:8205
hci_disconn_cfm include/net/bluetooth/hci_core.h:1779 [inline]
hci_conn_hash_flush+0x122/0x260 net/bluetooth/hci_conn.c:2366
hci_dev_close_sync+0x55d/0x1130 net/bluetooth/hci_sync.c:4476
hci_dev_do_close+0x2d/0x70 net/bluetooth/hci_core.c:554
hci_error_reset+0x96/0x130 net/bluetooth/hci_core.c:1050
process_one_work+0x991/0x1610 kernel/workqueue.c:2289
worker_thread+0x665/0x1080 kernel/workqueue.c:2436
kthread+0x2e4/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
==================================================================
BUG: KASAN: use-after-free in instrument_atomic_read include/linux/instrumented.h:71 [inline]
BUG: KASAN: use-after-free in atomic_long_read include/linux/atomic/atomic-instrumented.h:1265 [inline]
BUG: KASAN: use-after-free in __mutex_unlock_slowpath+0xa6/0x5e0 kernel/locking/mutex.c:916
Read of size 8 at addr ffff88801795a4b8 by task kworker/u5:3/3641
CPU: 0 PID: 3641 Comm: kworker/u5:3 Not tainted 6.0.0-rc6-syzkaller-00281-g1707c39ae309 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022
Workqueue: hci0 hci_error_reset
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
print_address_description mm/kasan/report.c:317 [inline]
print_report.cold+0x2ba/0x719 mm/kasan/report.c:433
kasan_report+0xb1/0x1e0 mm/kasan/report.c:495
check_region_inline mm/kasan/generic.c:183 [inline]
kasan_check_range+0x13d/0x180 mm/kasan/generic.c:189
instrument_atomic_read include/linux/instrumented.h:71 [inline]
atomic_long_read include/linux/atomic/atomic-instrumented.h:1265 [inline]
__mutex_unlock_slowpath+0xa6/0x5e0 kernel/locking/mutex.c:916
l2cap_chan_unlock include/net/bluetooth/l2cap.h:860 [inline]
l2cap_conn_del+0x404/0x7b0 net/bluetooth/l2cap_core.c:1926
l2cap_disconn_cfm net/bluetooth/l2cap_core.c:8212 [inline]
l2cap_disconn_cfm+0x8c/0xc0 net/bluetooth/l2cap_core.c:8205
hci_disconn_cfm include/net/bluetooth/hci_core.h:1779 [inline]
hci_conn_hash_flush+0x122/0x260 net/bluetooth/hci_conn.c:2366
hci_dev_close_sync+0x55d/0x1130 net/bluetooth/hci_sync.c:4476
hci_dev_do_close+0x2d/0x70 net/bluetooth/hci_core.c:554
hci_error_reset+0x96/0x130 net/bluetooth/hci_core.c:1050
process_one_work+0x991/0x1610 kernel/workqueue.c:2289
worker_thread+0x665/0x1080 kernel/workqueue.c:2436
kthread+0x2e4/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
Allocated by task 3641:
kasan_save_stack+0x1e/0x40 mm/kasan/common.c:38
kasan_set_track mm/kasan/common.c:45 [inline]
set_alloc_info mm/kasan/common.c:437 [inline]
____kasan_kmalloc mm/kasan/common.c:516 [inline]
____kasan_kmalloc mm/kasan/common.c:475 [inline]
__kasan_kmalloc+0xa9/0xd0 mm/kasan/common.c:525
kmalloc include/linux/slab.h:600 [inline]
kzalloc include/linux/slab.h:733 [inline]
l2cap_chan_create+0x40/0x570 net/bluetooth/l2cap_core.c:463
a2mp_chan_open net/bluetooth/a2mp.c:771 [inline]
amp_mgr_create+0x8f/0x960 net/bluetooth/a2mp.c:862
a2mp_channel_create+0x7d/0x150 net/bluetooth/a2mp.c:894
l2cap_data_channel net/bluetooth/l2cap_core.c:7569 [inline]
l2cap_recv_frame+0x48e3/0x8d90 net/bluetooth/l2cap_core.c:7724
l2cap_recv_acldata+0xaa6/0xc00 net/bluetooth/l2cap_core.c:8429
hci_acldata_packet net/bluetooth/hci_core.c:3777 [inline]
hci_rx_work+0x705/0x1230 net/bluetooth/hci_core.c:4012
process_one_work+0x991/0x1610 kernel/workqueue.c:2289
worker_thread+0x665/0x1080 kernel/workqueue.c:2436
kthread+0x2e4/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
Freed by task 3641:
kasan_save_stack+0x1e/0x40 mm/kasan/common.c:38
kasan_set_track+0x21/0x30 mm/kasan/common.c:45
kasan_set_free_info+0x20/0x30 mm/kasan/generic.c:370
____kasan_slab_free mm/kasan/common.c:367 [inline]
____kasan_slab_free+0x166/0x1c0 mm/kasan/common.c:329
kasan_slab_free include/linux/kasan.h:200 [inline]
slab_free_hook mm/slub.c:1759 [inline]
slab_free_freelist_hook+0x8b/0x1c0 mm/slub.c:1785
slab_free mm/slub.c:3539 [inline]
kfree+0xe2/0x580 mm/slub.c:4567
l2cap_chan_destroy net/bluetooth/l2cap_core.c:503 [inline]
kref_put include/linux/kref.h:65 [inline]
l2cap_chan_put+0x22a/0x2d0 net/bluetooth/l2cap_core.c:527
l2cap_conn_del+0x3fc/0x7b0 net/bluetooth/l2cap_core.c:1924
l2cap_disconn_cfm net/bluetooth/l2cap_core.c:8212 [inline]
l2cap_disconn_cfm+0x8c/0xc0 net/bluetooth/l2cap_core.c:8205
hci_disconn_cfm include/net/bluetooth/hci_core.h:1779 [inline]
hci_conn_hash_flush+0x122/0x260 net/bluetooth/hci_conn.c:2366
hci_dev_close_sync+0x55d/0x1130 net/bluetooth/hci_sync.c:4476
hci_dev_do_close+0x2d/0x70 net/bluetooth/hci_core.c:554
hci_error_reset+0x96/0x130 net/bluetooth/hci_core.c:1050
process_one_work+0x991/0x1610 kernel/workqueue.c:2289
worker_thread+0x665/0x1080 kernel/workqueue.c:2436
kthread+0x2e4/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
Last potentially related work creation:
kasan_save_stack+0x1e/0x40 mm/kasan/common.c:38
__kasan_record_aux_stack+0xbe/0xd0 mm/kasan/generic.c:348
call_rcu+0x99/0x790 kernel/rcu/tree.c:2793
netlink_release+0xeff/0x1db0 net/netlink/af_netlink.c:815
__sock_release+0xcd/0x280 net/socket.c:650
sock_close+0x18/0x20 net/socket.c:1365
__fput+0x277/0x9d0 fs/file_table.c:320
task_work_run+0xdd/0x1a0 kernel/task_work.c:177
resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
exit_to_user_mode_loop kernel/entry/common.c:169 [inline]
exit_to_user_mode_prepare+0x23c/0x250 kernel/entry/common.c:201
__syscall_exit_to_user_mode_work kernel/entry/common.c:283 [inline]
syscall_exit_to_user_mode+0x19/0x50 kernel/entry/common.c:294
do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x63/0xcd
The buggy address belongs to the object at ffff88801795a000
which belongs to the cache kmalloc-2k of size 2048
The buggy address is located 1208 bytes inside of
2048-byte region [ffff88801795a000, ffff88801795a800)
The buggy address belongs to the physical page:
page:ffffea00005e5600 refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff88801795b000 pfn:0x17958
head:ffffea00005e5600 order:3 compound_mapcount:0 compound_pincount:0
flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000010200 ffffea0001eb0e08 ffffea0001255608 ffff888011842000
raw: ffff88801795b000 0000000000080007 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 1, tgid 1 (swapper/0), ts 2874150873, free_ts 0
prep_new_page mm/page_alloc.c:2532 [inline]
get_page_from_freelist+0x109b/0x2ce0 mm/page_alloc.c:4283
__alloc_pages+0x1c7/0x510 mm/page_alloc.c:5515
alloc_page_interleave+0x1e/0x200 mm/mempolicy.c:2103
alloc_pages+0x22f/0x270 mm/mempolicy.c:2265
alloc_slab_page mm/slub.c:1829 [inline]
allocate_slab+0x27e/0x3d0 mm/slub.c:1974
new_slab mm/slub.c:2034 [inline]
___slab_alloc+0x7f1/0xe10 mm/slub.c:3036
__slab_alloc.constprop.0+0x4d/0xa0 mm/slub.c:3123
slab_alloc_node mm/slub.c:3214 [inline]
slab_alloc mm/slub.c:3256 [inline]
kmem_cache_alloc_trace+0x323/0x3e0 mm/slub.c:3287
kmalloc include/linux/slab.h:600 [inline]
kzalloc include/linux/slab.h:733 [inline]
acpi_os_allocate_zeroed include/acpi/platform/aclinuxex.h:57 [inline]
acpi_ds_create_walk_state+0x88/0x1ff drivers/acpi/acpica/dswstate.c:518
acpi_ds_call_control_method+0xda/0x56f drivers/acpi/acpica/dsmethod.c:498
acpi_ps_parse_aml+0x2e5/0x8cc drivers/acpi/acpica/psparse.c:503
acpi_ps_execute_method+0x5a7/0x61c drivers/acpi/acpica/psxface.c:190
acpi_ns_evaluate+0x6c7/0x966 drivers/acpi/acpica/nseval.c:205
acpi_evaluate_object+0x3db/0x7f5 drivers/acpi/acpica/nsxfeval.c:354
acpi_evaluate_integer+0xbf/0x1e0 drivers/acpi/utils.c:260
acpi_bus_get_status_handle drivers/acpi/bus.c:84 [inline]
acpi_bus_get_status+0x18d/0x340 drivers/acpi/bus.c:113
page_owner free stack trace missing
Memory state around the buggy address:
ffff88801795a380: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff88801795a400: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff88801795a480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
^
ffff88801795a500: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff88801795a580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================