BUG: sleeping function called from invalid context at kernel/locking/mutex.c:585
in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 5333, name: kworker/u33:2
preempt_count: 0, expected: 0
RCU nest depth: 1, expected: 0
4 locks held by kworker/u33:2/5333:
#0: ffff88802deb9148 ((wq_completion)hci0#2){+.+.}-{0:0}, at: process_one_work+0x1277/0x1b40 kernel/workqueue.c:3206
#1: ffffc900032d7d80 ((work_completion)(&hdev->rx_work)){+.+.}-{0:0}, at: process_one_work+0x921/0x1b40 kernel/workqueue.c:3207
#2: ffff88802f5e8078 (&hdev->lock){+.+.}-{3:3}, at: hci_le_create_big_complete_evt+0xde/0xb30 net/bluetooth/hci_event.c:6853
#3: ffffffff8ddb5ca0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:326 [inline]
#3: ffffffff8ddb5ca0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:838 [inline]
#3: ffffffff8ddb5ca0 (rcu_read_lock){....}-{1:2}, at: hci_le_create_big_complete_evt+0x100/0xb30 net/bluetooth/hci_event.c:6854
CPU: 2 UID: 0 PID: 5333 Comm: kworker/u33:2 Not tainted 6.11.0-rc2-syzkaller-00194-gafdab700f65e #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:93 [inline]
dump_stack_lvl+0x16c/0x1f0 lib/dump_stack.c:119
__might_resched+0x3c0/0x5e0 kernel/sched/core.c:8463
__mutex_lock_common kernel/locking/mutex.c:585 [inline]
__mutex_lock+0xe2/0x9c0 kernel/locking/mutex.c:752
hci_connect_cfm include/net/bluetooth/hci_core.h:1962 [inline]
hci_le_create_big_complete_evt+0x387/0xb30 net/bluetooth/hci_event.c:6878
hci_le_meta_evt+0x2e2/0x5d0 net/bluetooth/hci_event.c:7135
hci_event_func net/bluetooth/hci_event.c:7443 [inline]
hci_event_packet+0x666/0x1180 net/bluetooth/hci_event.c:7498
hci_rx_work+0x2c6/0x1610 net/bluetooth/hci_core.c:4022
process_one_work+0x9c5/0x1b40 kernel/workqueue.c:3231
process_scheduled_works kernel/workqueue.c:3312 [inline]
worker_thread+0x6c8/0xf20 kernel/workqueue.c:3390
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
=============================
[ BUG: Invalid wait context ]
6.11.0-rc2-syzkaller-00194-gafdab700f65e #0 Tainted: G W
-----------------------------
kworker/u33:2/5333 is trying to lock:
ffffffff8fc85d28 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_connect_cfm include/net/bluetooth/hci_core.h:1962 [inline]
ffffffff8fc85d28 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_le_create_big_complete_evt+0x387/0xb30 net/bluetooth/hci_event.c:6878
other info that might help us debug this:
context-{4:4}
4 locks held by kworker/u33:2/5333:
#0: ffff88802deb9148 ((wq_completion)hci0#2){+.+.}-{0:0}, at: process_one_work+0x1277/0x1b40 kernel/workqueue.c:3206
#1: ffffc900032d7d80 ((work_completion)(&hdev->rx_work)){+.+.}-{0:0}, at: process_one_work+0x921/0x1b40 kernel/workqueue.c:3207
#2: ffff88802f5e8078 (&hdev->lock){+.+.}-{3:3}, at: hci_le_create_big_complete_evt+0xde/0xb30 net/bluetooth/hci_event.c:6853
#3: ffffffff8ddb5ca0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:326 [inline]
#3: ffffffff8ddb5ca0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:838 [inline]
#3: ffffffff8ddb5ca0 (rcu_read_lock){....}-{1:2}, at: hci_le_create_big_complete_evt+0x100/0xb30 net/bluetooth/hci_event.c:6854
stack backtrace:
CPU: 2 UID: 0 PID: 5333 Comm: kworker/u33:2 Tainted: G W 6.11.0-rc2-syzkaller-00194-gafdab700f65e #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:93 [inline]
dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:119
print_lock_invalid_wait_context kernel/locking/lockdep.c:4750 [inline]
check_wait_context kernel/locking/lockdep.c:4820 [inline]
__lock_acquire+0x13cc/0x3cb0 kernel/locking/lockdep.c:5092
lock_acquire kernel/locking/lockdep.c:5759 [inline]
lock_acquire+0x1b1/0x560 kernel/locking/lockdep.c:5724
__mutex_lock_common kernel/locking/mutex.c:608 [inline]
__mutex_lock+0x175/0x9c0 kernel/locking/mutex.c:752
hci_connect_cfm include/net/bluetooth/hci_core.h:1962 [inline]
hci_le_create_big_complete_evt+0x387/0xb30 net/bluetooth/hci_event.c:6878
hci_le_meta_evt+0x2e2/0x5d0 net/bluetooth/hci_event.c:7135
hci_event_func net/bluetooth/hci_event.c:7443 [inline]
hci_event_packet+0x666/0x1180 net/bluetooth/hci_event.c:7498
hci_rx_work+0x2c6/0x1610 net/bluetooth/hci_core.c:4022
process_one_work+0x9c5/0x1b40 kernel/workqueue.c:3231
process_scheduled_works kernel/workqueue.c:3312 [inline]
worker_thread+0x6c8/0xf20 kernel/workqueue.c:3390
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork+0x45/0x80 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+0xa62/0xb30 net/bluetooth/hci_event.c:6857
Read of size 8 at addr ffff888027fc8000 by task kworker/u33:2/5333
CPU: 2 UID: 0 PID: 5333 Comm: kworker/u33:2 Tainted: G W 6.11.0-rc2-syzkaller-00194-gafdab700f65e #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:93 [inline]
dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:119
print_address_description mm/kasan/report.c:377 [inline]
print_report+0xc3/0x620 mm/kasan/report.c:488
kasan_report+0xd9/0x110 mm/kasan/report.c:601
hci_le_create_big_complete_evt+0xa62/0xb30 net/bluetooth/hci_event.c:6857
hci_le_meta_evt+0x2e2/0x5d0 net/bluetooth/hci_event.c:7135
hci_event_func net/bluetooth/hci_event.c:7443 [inline]
hci_event_packet+0x666/0x1180 net/bluetooth/hci_event.c:7498
hci_rx_work+0x2c6/0x1610 net/bluetooth/hci_core.c:4022
process_one_work+0x9c5/0x1b40 kernel/workqueue.c:3231
process_scheduled_works kernel/workqueue.c:3312 [inline]
worker_thread+0x6c8/0xf20 kernel/workqueue.c:3390
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
Allocated by task 5346:
kasan_save_stack+0x33/0x60 mm/kasan/common.c:47
kasan_save_track+0x14/0x30 mm/kasan/common.c:68
poison_kmalloc_redzone mm/kasan/common.c:370 [inline]
__kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:387
kmalloc_noprof include/linux/slab.h:681 [inline]
kzalloc_noprof include/linux/slab.h:807 [inline]
__hci_conn_add+0x131/0x1a50 net/bluetooth/hci_conn.c:934
hci_conn_add+0x56/0x70 net/bluetooth/hci_conn.c:1052
hci_le_big_sync_established_evt+0x73f/0xad0 net/bluetooth/hci_event.c:6923
hci_le_meta_evt+0x2e2/0x5d0 net/bluetooth/hci_event.c:7135
hci_event_func net/bluetooth/hci_event.c:7443 [inline]
hci_event_packet+0x666/0x1180 net/bluetooth/hci_event.c:7498
hci_rx_work+0x2c6/0x1610 net/bluetooth/hci_core.c:4022
process_one_work+0x9c5/0x1b40 kernel/workqueue.c:3231
process_scheduled_works kernel/workqueue.c:3312 [inline]
worker_thread+0x6c8/0xf20 kernel/workqueue.c:3390
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
Freed by task 5333:
kasan_save_stack+0x33/0x60 mm/kasan/common.c:47
kasan_save_track+0x14/0x30 mm/kasan/common.c:68
kasan_save_free_info+0x3b/0x60 mm/kasan/generic.c:579
poison_slab_object+0xf7/0x160 mm/kasan/common.c:240
__kasan_slab_free+0x32/0x50 mm/kasan/common.c:256
kasan_slab_free include/linux/kasan.h:184 [inline]
slab_free_hook mm/slub.c:2252 [inline]
slab_free mm/slub.c:4473 [inline]
kfree+0x12a/0x3b0 mm/slub.c:4594
device_release+0xa1/0x240 drivers/base/core.c:2581
kobject_cleanup lib/kobject.c:689 [inline]
kobject_release lib/kobject.c:720 [inline]
kref_put include/linux/kref.h:65 [inline]
kobject_put+0x1fa/0x5b0 lib/kobject.c:737
put_device+0x1f/0x30 drivers/base/core.c:3787
hci_conn_del_sysfs+0x151/0x180 net/bluetooth/hci_sysfs.c:72
hci_conn_cleanup net/bluetooth/hci_conn.c:175 [inline]
hci_conn_del+0x54e/0xdb0 net/bluetooth/hci_conn.c:1162
hci_le_create_big_complete_evt+0x4ba/0xb30 net/bluetooth/hci_event.c:6880
hci_le_meta_evt+0x2e2/0x5d0 net/bluetooth/hci_event.c:7135
hci_event_func net/bluetooth/hci_event.c:7443 [inline]
hci_event_packet+0x666/0x1180 net/bluetooth/hci_event.c:7498
hci_rx_work+0x2c6/0x1610 net/bluetooth/hci_core.c:4022
process_one_work+0x9c5/0x1b40 kernel/workqueue.c:3231
process_scheduled_works kernel/workqueue.c:3312 [inline]
worker_thread+0x6c8/0xf20 kernel/workqueue.c:3390
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork+0x45/0x80 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 ffff888027fc8000
which belongs to the cache kmalloc-8k of size 8192
The buggy address is located 0 bytes inside of
freed 8192-byte region [ffff888027fc8000, ffff888027fca000)
The buggy address belongs to the physical page:
page: refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff888027fcc000 pfn:0x27fc8
head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
flags: 0xfff00000000240(workingset|head|node=0|zone=1|lastcpupid=0x7ff)
page_type: 0xfdffffff(slab)
raw: 00fff00000000240 ffff888015843180 ffffea0000afa810 ffffea00007bdc10
raw: ffff888027fcc000 0000000000020001 00000001fdffffff 0000000000000000
head: 00fff00000000240 ffff888015843180 ffffea0000afa810 ffffea00007bdc10
head: ffff888027fcc000 0000000000020001 00000001fdffffff 0000000000000000
head: 00fff00000000003 ffffea00009ff201 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 5061, tgid 5061 (dhcpcd-run-hook), ts 30217815694, free_ts 30181086437
set_page_owner include/linux/page_owner.h:32 [inline]
post_alloc_hook+0x2d1/0x350 mm/page_alloc.c:1493
prep_new_page mm/page_alloc.c:1501 [inline]
get_page_from_freelist+0x1351/0x2e50 mm/page_alloc.c:3442
__alloc_pages_noprof+0x22b/0x2460 mm/page_alloc.c:4700
__alloc_pages_node_noprof include/linux/gfp.h:269 [inline]
alloc_pages_node_noprof include/linux/gfp.h:296 [inline]
alloc_slab_page+0x4e/0xf0 mm/slub.c:2321
allocate_slab mm/slub.c:2484 [inline]
new_slab+0x84/0x260 mm/slub.c:2537
___slab_alloc+0xdac/0x1870 mm/slub.c:3723
__slab_alloc.constprop.0+0x56/0xb0 mm/slub.c:3813
__slab_alloc_node mm/slub.c:3866 [inline]
slab_alloc_node mm/slub.c:4025 [inline]
__kmalloc_cache_noprof+0x2b4/0x300 mm/slub.c:4184
kmalloc_noprof include/linux/slab.h:681 [inline]
kzalloc_noprof include/linux/slab.h:807 [inline]
tomoyo_print_bprm security/tomoyo/audit.c:26 [inline]
tomoyo_init_log+0xcb6/0x2180 security/tomoyo/audit.c:264
tomoyo_supervisor+0x30c/0xea0 security/tomoyo/common.c:2089
tomoyo_audit_path_log security/tomoyo/file.c:168 [inline]
tomoyo_execute_permission+0x38e/0x4b0 security/tomoyo/file.c:619
tomoyo_find_next_domain+0x367/0x2020 security/tomoyo/domain.c:752
tomoyo_bprm_check_security security/tomoyo/tomoyo.c:102 [inline]
tomoyo_bprm_check_security+0x12e/0x1d0 security/tomoyo/tomoyo.c:92
security_bprm_check+0x65/0xb0 security/security.c:1191
search_binary_handler fs/exec.c:1809 [inline]
exec_binprm fs/exec.c:1863 [inline]
bprm_execve fs/exec.c:1914 [inline]
bprm_execve+0x642/0x1960 fs/exec.c:1890
do_execveat_common.isra.0+0x4f1/0x630 fs/exec.c:2021
page last free pid 5059 tgid 5059 stack trace:
reset_page_owner include/linux/page_owner.h:25 [inline]
free_pages_prepare mm/page_alloc.c:1094 [inline]
free_unref_page+0x64a/0xe40 mm/page_alloc.c:2612
qlink_free mm/kasan/quarantine.c:163 [inline]
qlist_free_all+0x4e/0x140 mm/kasan/quarantine.c:179
kasan_quarantine_reduce+0x192/0x1e0 mm/kasan/quarantine.c:286
__kasan_slab_alloc+0x69/0x90 mm/kasan/common.c:322
kasan_slab_alloc include/linux/kasan.h:201 [inline]
slab_post_alloc_hook mm/slub.c:3988 [inline]
slab_alloc_node mm/slub.c:4037 [inline]
kmem_cache_alloc_noprof+0x121/0x2f0 mm/slub.c:4044
getname_flags.part.0+0x4c/0x550 fs/namei.c:139
getname_flags+0x93/0xf0 include/linux/audit.h:322
vfs_fstatat+0x86/0x160 fs/stat.c:340
__do_sys_newfstatat+0xa2/0x130 fs/stat.c:505
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
Memory state around the buggy address:
ffff888027fc7f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
ffff888027fc7f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff888027fc8000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
^
ffff888027fc8080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff888027fc8100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================