BUG: sleeping function called from invalid context at kernel/locking/mutex.c:562
in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 5316, name: kworker/u5:2
preempt_count: 0, expected: 0
RCU nest depth: 1, expected: 0
4 locks held by kworker/u5:2/5316:
#0: ffff8880007c8148 ((wq_completion)hci0#2){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3204 [inline]
#0: ffff8880007c8148 ((wq_completion)hci0#2){+.+.}-{0:0}, at: process_scheduled_works+0x93b/0x1850 kernel/workqueue.c:3310
#1: ffffc9000d247d00 ((work_completion)(&hdev->rx_work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3205 [inline]
#1: ffffc9000d247d00 ((work_completion)(&hdev->rx_work)){+.+.}-{0:0}, at: process_scheduled_works+0x976/0x1850 kernel/workqueue.c:3310
#2: ffff888051508078 (&hdev->lock){+.+.}-{4:4}, at: hci_le_create_big_complete_evt+0xcf/0xae0 net/bluetooth/hci_event.c:6848
#3: ffffffff8e93c820 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
#3: ffffffff8e93c820 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#3: ffffffff8e93c820 (rcu_read_lock){....}-{1:3}, at: hci_le_create_big_complete_evt+0xdb/0xae0 net/bluetooth/hci_event.c:6849
CPU: 0 UID: 0 PID: 5316 Comm: kworker/u5:2 Not tainted 6.12.0-syzkaller-03657-g43fb83c17ba2 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Workqueue: hci0 hci_rx_work
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
__might_resched+0x5d4/0x780 kernel/sched/core.c:8758
__mutex_lock_common kernel/locking/mutex.c:562 [inline]
__mutex_lock+0x131/0xee0 kernel/locking/mutex.c:735
hci_connect_cfm include/net/bluetooth/hci_core.h:1957 [inline]
hci_le_create_big_complete_evt+0x3d9/0xae0 net/bluetooth/hci_event.c:6873
hci_event_func net/bluetooth/hci_event.c:7438 [inline]
hci_event_packet+0xa55/0x1540 net/bluetooth/hci_event.c:7493
hci_rx_work+0x3e8/0xca0 net/bluetooth/hci_core.c:4029
process_one_work kernel/workqueue.c:3229 [inline]
process_scheduled_works+0xa63/0x1850 kernel/workqueue.c:3310
worker_thread+0x870/0xd30 kernel/workqueue.c:3391
kthread+0x2f0/0x390 kernel/kthread.c:389
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
=============================
[ BUG: Invalid wait context ]
6.12.0-syzkaller-03657-g43fb83c17ba2 #0 Tainted: G W
-----------------------------
kworker/u5:2/5316 is trying to lock:
ffffffff8fe4d568 (hci_cb_list_lock){+.+.}-{4:4}, at: hci_connect_cfm include/net/bluetooth/hci_core.h:1957 [inline]
ffffffff8fe4d568 (hci_cb_list_lock){+.+.}-{4:4}, at: hci_le_create_big_complete_evt+0x3d9/0xae0 net/bluetooth/hci_event.c:6873
other info that might help us debug this:
context-{5:5}
4 locks held by kworker/u5:2/5316:
#0: ffff8880007c8148 ((wq_completion)hci0#2){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3204 [inline]
#0: ffff8880007c8148 ((wq_completion)hci0#2){+.+.}-{0:0}, at: process_scheduled_works+0x93b/0x1850 kernel/workqueue.c:3310
#1: ffffc9000d247d00 ((work_completion)(&hdev->rx_work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3205 [inline]
#1: ffffc9000d247d00 ((work_completion)(&hdev->rx_work)){+.+.}-{0:0}, at: process_scheduled_works+0x976/0x1850 kernel/workqueue.c:3310
#2: ffff888051508078 (&hdev->lock){+.+.}-{4:4}, at: hci_le_create_big_complete_evt+0xcf/0xae0 net/bluetooth/hci_event.c:6848
#3: ffffffff8e93c820 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
#3: ffffffff8e93c820 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#3: ffffffff8e93c820 (rcu_read_lock){....}-{1:3}, at: hci_le_create_big_complete_evt+0xdb/0xae0 net/bluetooth/hci_event.c:6849
stack backtrace:
CPU: 0 UID: 0 PID: 5316 Comm: kworker/u5:2 Tainted: G W 6.12.0-syzkaller-03657-g43fb83c17ba2 #0
Tainted: [W]=WARN
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Workqueue: hci0 hci_rx_work
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
print_lock_invalid_wait_context kernel/locking/lockdep.c:4826 [inline]
check_wait_context kernel/locking/lockdep.c:4898 [inline]
__lock_acquire+0x15a8/0x2100 kernel/locking/lockdep.c:5176
lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5849
__mutex_lock_common kernel/locking/mutex.c:585 [inline]
__mutex_lock+0x1ac/0xee0 kernel/locking/mutex.c:735
hci_connect_cfm include/net/bluetooth/hci_core.h:1957 [inline]
hci_le_create_big_complete_evt+0x3d9/0xae0 net/bluetooth/hci_event.c:6873
hci_event_func net/bluetooth/hci_event.c:7438 [inline]
hci_event_packet+0xa55/0x1540 net/bluetooth/hci_event.c:7493
hci_rx_work+0x3e8/0xca0 net/bluetooth/hci_core.c:4029
process_one_work kernel/workqueue.c:3229 [inline]
process_scheduled_works+0xa63/0x1850 kernel/workqueue.c:3310
worker_thread+0x870/0xd30 kernel/workqueue.c:3391
kthread+0x2f0/0x390 kernel/kthread.c:389
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
==================================================================
BUG: KASAN: slab-use-after-free in hci_le_create_big_complete_evt+0x383/0xae0
Read of size 8 at addr ffff888011e28000 by task kworker/u5:2/5316
CPU: 0 UID: 0 PID: 5316 Comm: kworker/u5:2 Tainted: G W 6.12.0-syzkaller-03657-g43fb83c17ba2 #0
Tainted: [W]=WARN
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Workqueue: hci0 hci_rx_work
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
print_address_description mm/kasan/report.c:377 [inline]
print_report+0x169/0x550 mm/kasan/report.c:488
kasan_report+0x143/0x180 mm/kasan/report.c:601
hci_le_create_big_complete_evt+0x383/0xae0
hci_event_func net/bluetooth/hci_event.c:7438 [inline]
hci_event_packet+0xa55/0x1540 net/bluetooth/hci_event.c:7493
hci_rx_work+0x3e8/0xca0 net/bluetooth/hci_core.c:4029
process_one_work kernel/workqueue.c:3229 [inline]
process_scheduled_works+0xa63/0x1850 kernel/workqueue.c:3310
worker_thread+0x870/0xd30 kernel/workqueue.c:3391
kthread+0x2f0/0x390 kernel/kthread.c:389
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
Allocated by task 5316:
kasan_save_stack mm/kasan/common.c:47 [inline]
kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
poison_kmalloc_redzone mm/kasan/common.c:377 [inline]
__kasan_kmalloc+0x98/0xb0 mm/kasan/common.c:394
kasan_kmalloc include/linux/kasan.h:257 [inline]
__kmalloc_cache_noprof+0x19c/0x2c0 mm/slub.c:4295
kmalloc_noprof include/linux/slab.h:879 [inline]
kzalloc_noprof include/linux/slab.h:1015 [inline]
__hci_conn_add+0x2f9/0x1850 net/bluetooth/hci_conn.c:935
hci_le_big_sync_established_evt+0x414/0xc20 net/bluetooth/hci_event.c:6918
hci_event_func net/bluetooth/hci_event.c:7438 [inline]
hci_event_packet+0xa55/0x1540 net/bluetooth/hci_event.c:7493
hci_rx_work+0x3e8/0xca0 net/bluetooth/hci_core.c:4029
process_one_work kernel/workqueue.c:3229 [inline]
process_scheduled_works+0xa63/0x1850 kernel/workqueue.c:3310
worker_thread+0x870/0xd30 kernel/workqueue.c:3391
kthread+0x2f0/0x390 kernel/kthread.c:389
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
Freed by task 5316:
kasan_save_stack mm/kasan/common.c:47 [inline]
kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:579
poison_slab_object mm/kasan/common.c:247 [inline]
__kasan_slab_free+0x59/0x70 mm/kasan/common.c:264
kasan_slab_free include/linux/kasan.h:230 [inline]
slab_free_hook mm/slub.c:2342 [inline]
slab_free mm/slub.c:4579 [inline]
kfree+0x1a0/0x440 mm/slub.c:4727
device_release+0x99/0x1c0
kobject_cleanup lib/kobject.c:689 [inline]
kobject_release lib/kobject.c:720 [inline]
kref_put include/linux/kref.h:65 [inline]
kobject_put+0x22f/0x480 lib/kobject.c:737
hci_conn_cleanup net/bluetooth/hci_conn.c:174 [inline]
hci_conn_del+0x8c4/0xc40 net/bluetooth/hci_conn.c:1163
hci_le_create_big_complete_evt+0x619/0xae0 net/bluetooth/hci_event.c:6875
hci_event_func net/bluetooth/hci_event.c:7438 [inline]
hci_event_packet+0xa55/0x1540 net/bluetooth/hci_event.c:7493
hci_rx_work+0x3e8/0xca0 net/bluetooth/hci_core.c:4029
process_one_work kernel/workqueue.c:3229 [inline]
process_scheduled_works+0xa63/0x1850 kernel/workqueue.c:3310
worker_thread+0x870/0xd30 kernel/workqueue.c:3391
kthread+0x2f0/0x390 kernel/kthread.c:389
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
The buggy address belongs to the object at ffff888011e28000
which belongs to the cache kmalloc-8k of size 8192
The buggy address is located 0 bytes inside of
freed 8192-byte region [ffff888011e28000, ffff888011e2a000)
The buggy address belongs to the physical page:
page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x11e28
head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 00fff00000000040 ffff88801ac42280 dead000000000100 dead000000000122
raw: 0000000000000000 0000000080020002 00000001f5000000 0000000000000000
head: 00fff00000000040 ffff88801ac42280 dead000000000100 dead000000000122
head: 0000000000000000 0000000080020002 00000001f5000000 0000000000000000
head: 00fff00000000003 ffffea0000478a01 ffffffffffffffff 0000000000000000
head: 0000000000000008 0000000000000000 00000000ffffffff 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 0xd2040(__GFP_IO|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 4720, tgid 4720 (start-stop-daem), ts 22551209788, free_ts 22110027894
set_page_owner include/linux/page_owner.h:32 [inline]
post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1556
prep_new_page mm/page_alloc.c:1564 [inline]
get_page_from_freelist+0x3649/0x3790 mm/page_alloc.c:3474
__alloc_pages_noprof+0x292/0x710 mm/page_alloc.c:4751
alloc_pages_mpol_noprof+0x3e8/0x680 mm/mempolicy.c:2265
alloc_slab_page+0x6a/0x140 mm/slub.c:2412
allocate_slab+0x5a/0x2f0 mm/slub.c:2578
new_slab mm/slub.c:2631 [inline]
___slab_alloc+0xcd1/0x14b0 mm/slub.c:3818
__slab_alloc+0x58/0xa0 mm/slub.c:3908
__slab_alloc_node mm/slub.c:3961 [inline]
slab_alloc_node mm/slub.c:4122 [inline]
__kmalloc_cache_noprof+0x1d5/0x2c0 mm/slub.c:4290
kmalloc_noprof include/linux/slab.h:879 [inline]
kzalloc_noprof include/linux/slab.h:1015 [inline]
tomoyo_print_bprm security/tomoyo/audit.c:26 [inline]
tomoyo_init_log+0x11cd/0x2050 security/tomoyo/audit.c:264
tomoyo_supervisor+0x38a/0x11f0 security/tomoyo/common.c:2089
tomoyo_audit_env_log security/tomoyo/environ.c:36 [inline]
tomoyo_env_perm+0x178/0x210 security/tomoyo/environ.c:63
tomoyo_environ security/tomoyo/domain.c:672 [inline]
tomoyo_find_next_domain+0x146e/0x1d40 security/tomoyo/domain.c:881
tomoyo_bprm_check_security+0x117/0x180 security/tomoyo/tomoyo.c:102
security_bprm_check+0x86/0x250 security/security.c:1297
search_binary_handler fs/exec.c:1740 [inline]
exec_binprm fs/exec.c:1794 [inline]
bprm_execve+0xa56/0x1770 fs/exec.c:1845
page last free pid 1 tgid 1 stack trace:
reset_page_owner include/linux/page_owner.h:25 [inline]
free_pages_prepare mm/page_alloc.c:1127 [inline]
free_unref_page+0xdf9/0x1140 mm/page_alloc.c:2657
free_reserved_page+0xcc/0x120 mm/page_alloc.c:5877
free_reserved_area+0x51/0xf0 mm/page_alloc.c:5863
free_init_pages arch/x86/mm/init.c:932 [inline]
free_kernel_image_pages arch/x86/mm/init.c:948 [inline]
free_initmem+0x9a/0x110 arch/x86/mm/init.c:975
kernel_init+0x31/0x2b0 init/main.c:1475
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
Memory state around the buggy address:
ffff888011e27f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
ffff888011e27f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff888011e28000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
^
ffff888011e28080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff888011e28100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================