==================================================================
BUG: KASAN: slab-out-of-bounds in __lock_acquire+0x3ad2/0x5050 kernel/locking/lockdep.c:4772
Read of size 8 at addr ffff888110ce70a0 by task kworker/1:0/19

CPU: 1 PID: 19 Comm: kworker/1:0 Not tainted 5.13.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events l2cap_chan_timeout
Call Trace:
 __dump_stack lib/dump_stack.c:79 [inline]
 dump_stack+0x10c/0x14b lib/dump_stack.c:120
 print_address_description.constprop.0.cold+0x5b/0x2c6 mm/kasan/report.c:233
 __kasan_report mm/kasan/report.c:419 [inline]
 kasan_report.cold+0x7c/0xd8 mm/kasan/report.c:436
 __lock_acquire+0x3ad2/0x5050 kernel/locking/lockdep.c:4772
 lock_acquire kernel/locking/lockdep.c:5512 [inline]
 lock_acquire+0x212/0x850 kernel/locking/lockdep.c:5477
 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:135 [inline]
 _raw_spin_lock_bh+0x2f/0x40 kernel/locking/spinlock.c:175
 spin_lock_bh include/linux/spinlock.h:359 [inline]
 lock_sock_nested+0x39/0xf0 net/core/sock.c:3057
 l2cap_sock_teardown_cb+0x83/0x3a0 net/bluetooth/l2cap_sock.c:1528
 l2cap_chan_del+0x96/0x1010 net/bluetooth/l2cap_core.c:622
 l2cap_chan_close+0xe2/0x9d0 net/bluetooth/l2cap_core.c:825
 l2cap_chan_timeout+0x122/0x3a0 net/bluetooth/l2cap_core.c:436
 process_one_work+0x84c/0x13b0 kernel/workqueue.c:2275
 worker_thread+0x598/0xf80 kernel/workqueue.c:2421
 kthread+0x36f/0x450 kernel/kthread.c:313
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294

Allocated by task 8628:
 kasan_save_stack+0x1b/0x40 mm/kasan/common.c:38
 kasan_set_track mm/kasan/common.c:46 [inline]
 set_alloc_info mm/kasan/common.c:428 [inline]
 ____kasan_kmalloc mm/kasan/common.c:507 [inline]
 __kasan_kmalloc+0x7a/0x90 mm/kasan/common.c:516
 kasan_kmalloc include/linux/kasan.h:246 [inline]
 __do_kmalloc mm/slab.c:3702 [inline]
 __kmalloc+0x229/0x460 mm/slab.c:3711
 kmalloc include/linux/slab.h:561 [inline]
 kzalloc include/linux/slab.h:686 [inline]
 tomoyo_get_name+0x1bc/0x400 security/tomoyo/memory.c:173
 tomoyo_parse_name_union+0x81/0x130 security/tomoyo/util.c:260
 tomoyo_update_path_acl security/tomoyo/file.c:395 [inline]
 tomoyo_write_file+0x35a/0x5a0 security/tomoyo/file.c:1022
 tomoyo_write_domain2+0xb9/0x140 security/tomoyo/common.c:1152
 tomoyo_add_entry security/tomoyo/common.c:2042 [inline]
 tomoyo_supervisor+0x97f/0xc00 security/tomoyo/common.c:2103
 tomoyo_audit_path_log security/tomoyo/file.c:168 [inline]
 tomoyo_path_permission security/tomoyo/file.c:587 [inline]
 tomoyo_path_permission+0x23d/0x330 security/tomoyo/file.c:573
 tomoyo_path_perm+0x2ed/0x340 security/tomoyo/file.c:838
 tomoyo_path_symlink+0x7b/0xd0 security/tomoyo/tomoyo.c:200
 security_path_symlink+0xbb/0x110 security/security.c:1163
 do_symlinkat+0xe5/0x260 fs/namei.c:4197
 do_syscall_64+0x3a/0xb0 arch/x86/entry/common.c:47
 entry_SYSCALL_64_after_hwframe+0x44/0xae

The buggy address belongs to the object at ffff888110ce7000
 which belongs to the cache kmalloc-128 of size 128
The buggy address is located 32 bytes to the right of
 128-byte region [ffff888110ce7000, ffff888110ce7080)
The buggy address belongs to the page:
page:00000000d2ede989 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x110ce7
flags: 0x17ffe0000000200(slab|node=0|zone=2|lastcpupid=0x3fff)
raw: 017ffe0000000200 ffffea00041111c8 ffffea00043c8c48 ffff888100040400
raw: 0000000000000000 ffff888110ce7000 0000000100000010 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff888110ce6f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff888110ce7000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff888110ce7080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
                               ^
 ffff888110ce7100: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff888110ce7180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
==================================================================
INFO: trying to register non-static key.
The code is fine but needs lockdep annotation, or maybe
you didn't initialize this object before use?
turning off the locking correctness validator.
CPU: 1 PID: 19 Comm: kworker/1:0 Tainted: G    B             5.13.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events l2cap_chan_timeout
Call Trace:
 __dump_stack lib/dump_stack.c:79 [inline]
 dump_stack+0x10c/0x14b lib/dump_stack.c:120
 assign_lock_key kernel/locking/lockdep.c:937 [inline]
 register_lock_class+0x112a/0x1200 kernel/locking/lockdep.c:1249
 __lock_acquire+0xfc/0x5050 kernel/locking/lockdep.c:4781
 lock_acquire kernel/locking/lockdep.c:5512 [inline]
 lock_acquire+0x212/0x850 kernel/locking/lockdep.c:5477
 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:135 [inline]
 _raw_spin_lock_bh+0x2f/0x40 kernel/locking/spinlock.c:175
 spin_lock_bh include/linux/spinlock.h:359 [inline]
 lock_sock_nested+0x39/0xf0 net/core/sock.c:3057
 l2cap_sock_teardown_cb+0x83/0x3a0 net/bluetooth/l2cap_sock.c:1528
 l2cap_chan_del+0x96/0x1010 net/bluetooth/l2cap_core.c:622
 l2cap_chan_close+0xe2/0x9d0 net/bluetooth/l2cap_core.c:825
 l2cap_chan_timeout+0x122/0x3a0 net/bluetooth/l2cap_core.c:436
 process_one_work+0x84c/0x13b0 kernel/workqueue.c:2275
 worker_thread+0x598/0xf80 kernel/workqueue.c:2421
 kthread+0x36f/0x450 kernel/kthread.c:313
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294
kernel tried to execute NX-protected page - exploit attempt? (uid: 0)
BUG: unable to handle page fault for address: ffff888110ce7458
#PF: supervisor instruction fetch in kernel mode
#PF: error_code(0x0011) - permissions violation
PGD c801067 P4D c801067 PUD 100b20063 PMD 8000000110c001e3 
Oops: 0011 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 19 Comm: kworker/1:0 Tainted: G    B             5.13.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events l2cap_chan_timeout
RIP: 0010:0xffff888110ce7458
Code: 00 00 00 00 00 00 00 00 00 00 20 67 da 87 ff ff ff ff 00 02 00 00 00 00 00 00 48 74 ce 10 81 88 ff ff 48 74 ce 10 81 88 ff ff <58> 74 ce 10 81 88 ff ff 58 74 ce 10 81 88 ff ff 00 00 00 00 00 00
RSP: 0018:ffffc9000015fb88 EFLAGS: 00010286
RAX: 0000000000000000 RBX: ffff888110ce7000 RCX: ffffffff8699449c
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff888110ce7000
RBP: 000000000000006f R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff8b8d4057 R11: 0000000000000001 R12: 0000000000000000
R13: ffff88811f947000 R14: ffff88811f947110 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8881f6500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffff888110ce7458 CR3: 000000011cfc2005 CR4: 00000000001706e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
Modules linked in:
CR2: ffff888110ce7458
---[ end trace c0f5efd10efaa49e ]---
RIP: 0010:0xffff888110ce7458
Code: 00 00 00 00 00 00 00 00 00 00 20 67 da 87 ff ff ff ff 00 02 00 00 00 00 00 00 48 74 ce 10 81 88 ff ff 48 74 ce 10 81 88 ff ff <58> 74 ce 10 81 88 ff ff 58 74 ce 10 81 88 ff ff 00 00 00 00 00 00
RSP: 0018:ffffc9000015fb88 EFLAGS: 00010286
RAX: 0000000000000000 RBX: ffff888110ce7000 RCX: ffffffff8699449c
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff888110ce7000
RBP: 000000000000006f R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff8b8d4057 R11: 0000000000000001 R12: 0000000000000000
R13: ffff88811f947000 R14: ffff88811f947110 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8881f6500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffff888110ce7458 CR3: 000000011cfc2005 CR4: 00000000001706e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400