BUG: sleeping function called from invalid context at net/core/sock.c:3252
in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 3587, name: kworker/u5:8
6 locks held by kworker/u5:8/3587:
#0: ffff88807deb8138 ((wq_completion)hci4#2){+.+.}-{0:0}, at: process_one_work+0x78a/0x10c0 kernel/workqueue.c:2283
#1: ffffc90002f07d20 ((work_completion)(&hdev->rx_work)){+.+.}-{0:0}, at: process_one_work+0x7d0/0x10c0 kernel/workqueue.c:2285
#2: ffff888079d78078 (&hdev->lock){+.+.}-{3:3}, at: hci_sync_conn_complete_evt+0xab/0x9b0 net/bluetooth/hci_event.c:4471
#3: ffffffff8db7b128 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_connect_cfm include/net/bluetooth/hci_core.h:1502 [inline]
#3: ffffffff8db7b128 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_sync_conn_complete_evt+0x45f/0x9b0 net/bluetooth/hci_event.c:4551
#4: ffff888026d7c620 (&conn->lock#2){+.+.}-{2:2}, at: spin_lock include/linux/spinlock.h:363 [inline]
#4: ffff888026d7c620 (&conn->lock#2){+.+.}-{2:2}, at: sco_conn_ready net/bluetooth/sco.c:1116 [inline]
#4: ffff888026d7c620 (&conn->lock#2){+.+.}-{2:2}, at: sco_connect_cfm+0x27c/0xad0 net/bluetooth/sco.c:1201
#5: ffff8880216dc120 (sk_lock-AF_BLUETOOTH-BTPROTO_SCO){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1676 [inline]
#5: ffff8880216dc120 (sk_lock-AF_BLUETOOTH-BTPROTO_SCO){+.+.}-{0:0}, at: sco_conn_ready net/bluetooth/sco.c:1129 [inline]
#5: ffff8880216dc120 (sk_lock-AF_BLUETOOTH-BTPROTO_SCO){+.+.}-{0:0}, at: sco_connect_cfm+0x456/0xad0 net/bluetooth/sco.c:1201
Preemption disabled at:
[<0000000000000000>] 0x0
CPU: 1 PID: 3587 Comm: kworker/u5:8 Not tainted 5.15.167-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
Workqueue: hci4 hci_rx_work
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e3/0x2d0 lib/dump_stack.c:106
___might_sleep+0x547/0x6a0 kernel/sched/core.c:9636
lock_sock_nested+0x5b/0x100 net/core/sock.c:3252
lock_sock include/net/sock.h:1676 [inline]
sco_conn_ready net/bluetooth/sco.c:1129 [inline]
sco_connect_cfm+0x456/0xad0 net/bluetooth/sco.c:1201
hci_connect_cfm include/net/bluetooth/hci_core.h:1505 [inline]
hci_sync_conn_complete_evt+0x4ce/0x9b0 net/bluetooth/hci_event.c:4551
hci_event_packet+0xa12/0x1550 net/bluetooth/hci_event.c:6483
hci_rx_work+0x232/0x990 net/bluetooth/hci_core.c:5155
process_one_work+0x8a1/0x10c0 kernel/workqueue.c:2310
worker_thread+0xaca/0x1280 kernel/workqueue.c:2457
kthread+0x3f6/0x4f0 kernel/kthread.c:334
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
==================================================================
BUG: KASAN: use-after-free in __lock_acquire+0x74/0x1ff0 kernel/locking/lockdep.c:4882
Read of size 8 at addr ffff8880216dc0a0 by task kworker/u5:8/3587
CPU: 1 PID: 3587 Comm: kworker/u5:8 Tainted: G W 5.15.167-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
Workqueue: hci4 hci_rx_work
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e3/0x2d0 lib/dump_stack.c:106
print_address_description+0x63/0x3b0 mm/kasan/report.c:248
__kasan_report mm/kasan/report.c:434 [inline]
kasan_report+0x16b/0x1c0 mm/kasan/report.c:451
__lock_acquire+0x74/0x1ff0 kernel/locking/lockdep.c:4882
lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5623
__raw_spin_lock_bh include/linux/spinlock_api_smp.h:135 [inline]
_raw_spin_lock_bh+0x31/0x40 kernel/locking/spinlock.c:178
spin_lock_bh include/linux/spinlock.h:368 [inline]
lock_sock_nested+0x68/0x100 net/core/sock.c:3253
lock_sock include/net/sock.h:1676 [inline]
sco_conn_ready net/bluetooth/sco.c:1129 [inline]
sco_connect_cfm+0x456/0xad0 net/bluetooth/sco.c:1201
hci_connect_cfm include/net/bluetooth/hci_core.h:1505 [inline]
hci_sync_conn_complete_evt+0x4ce/0x9b0 net/bluetooth/hci_event.c:4551
hci_event_packet+0xa12/0x1550 net/bluetooth/hci_event.c:6483
hci_rx_work+0x232/0x990 net/bluetooth/hci_core.c:5155
process_one_work+0x8a1/0x10c0 kernel/workqueue.c:2310
worker_thread+0xaca/0x1280 kernel/workqueue.c:2457
kthread+0x3f6/0x4f0 kernel/kthread.c:334
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
Allocated by task 8152:
kasan_save_stack mm/kasan/common.c:38 [inline]
kasan_set_track mm/kasan/common.c:46 [inline]
set_alloc_info mm/kasan/common.c:434 [inline]
____kasan_kmalloc+0xba/0xf0 mm/kasan/common.c:513
kasan_kmalloc include/linux/kasan.h:264 [inline]
__kmalloc+0x168/0x300 mm/slub.c:4407
kmalloc include/linux/slab.h:596 [inline]
sk_prot_alloc+0xe0/0x200 net/core/sock.c:1863
sk_alloc+0x35/0x310 net/core/sock.c:1916
sco_sock_alloc net/bluetooth/sco.c:485 [inline]
sco_sock_create+0xb7/0x300 net/bluetooth/sco.c:520
bt_sock_create+0x159/0x220 net/bluetooth/af_bluetooth.c:130
__sock_create+0x460/0x8d0 net/socket.c:1486
sock_create net/socket.c:1537 [inline]
__sys_socket+0x132/0x370 net/socket.c:1579
__do_sys_socket net/socket.c:1588 [inline]
__se_sys_socket net/socket.c:1586 [inline]
__x64_sys_socket+0x76/0x80 net/socket.c:1586
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
Freed by task 8151:
kasan_save_stack mm/kasan/common.c:38 [inline]
kasan_set_track+0x4b/0x80 mm/kasan/common.c:46
kasan_set_free_info+0x1f/0x40 mm/kasan/generic.c:360
____kasan_slab_free+0xd8/0x120 mm/kasan/common.c:366
kasan_slab_free include/linux/kasan.h:230 [inline]
slab_free_hook mm/slub.c:1705 [inline]
slab_free_freelist_hook+0xdd/0x160 mm/slub.c:1731
slab_free mm/slub.c:3499 [inline]
kfree+0xf1/0x270 mm/slub.c:4559
sk_prot_free net/core/sock.c:1899 [inline]
__sk_destruct+0x58e/0x840 net/core/sock.c:1985
sco_sock_release+0x259/0x310 net/bluetooth/sco.c:1098
__sock_release net/socket.c:649 [inline]
sock_close+0xcd/0x230 net/socket.c:1336
__fput+0x3fe/0x8e0 fs/file_table.c:280
task_work_run+0x129/0x1a0 kernel/task_work.c:188
tracehook_notify_resume include/linux/tracehook.h:189 [inline]
exit_to_user_mode_loop+0x106/0x130 kernel/entry/common.c:181
exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:214
__syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline]
syscall_exit_to_user_mode+0x5d/0x240 kernel/entry/common.c:307
do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x66/0xd0
Last potentially related work creation:
kasan_save_stack+0x36/0x60 mm/kasan/common.c:38
kasan_record_aux_stack+0xba/0x100 mm/kasan/generic.c:348
__call_rcu kernel/rcu/tree.c:3007 [inline]
call_rcu+0x1c4/0xa70 kernel/rcu/tree.c:3087
netlink_release+0x1388/0x1800 net/netlink/af_netlink.c:815
__sock_release net/socket.c:649 [inline]
sock_close+0xcd/0x230 net/socket.c:1336
__fput+0x3fe/0x8e0 fs/file_table.c:280
task_work_run+0x129/0x1a0 kernel/task_work.c:188
tracehook_notify_resume include/linux/tracehook.h:189 [inline]
exit_to_user_mode_loop+0x106/0x130 kernel/entry/common.c:181
exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:214
__syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline]
syscall_exit_to_user_mode+0x5d/0x240 kernel/entry/common.c:307
do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x66/0xd0
Second to last potentially related work creation:
kasan_save_stack+0x36/0x60 mm/kasan/common.c:38
kasan_record_aux_stack+0xba/0x100 mm/kasan/generic.c:348
__call_rcu kernel/rcu/tree.c:3007 [inline]
call_rcu+0x1c4/0xa70 kernel/rcu/tree.c:3087
netlink_release+0x1388/0x1800 net/netlink/af_netlink.c:815
__sock_release net/socket.c:649 [inline]
sock_close+0xcd/0x230 net/socket.c:1336
__fput+0x3fe/0x8e0 fs/file_table.c:280
task_work_run+0x129/0x1a0 kernel/task_work.c:188
tracehook_notify_resume include/linux/tracehook.h:189 [inline]
exit_to_user_mode_loop+0x106/0x130 kernel/entry/common.c:181
exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:214
__syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline]
syscall_exit_to_user_mode+0x5d/0x240 kernel/entry/common.c:307
do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x66/0xd0
The buggy address belongs to the object at ffff8880216dc000
which belongs to the cache kmalloc-2k of size 2048
The buggy address is located 160 bytes inside of
2048-byte region [ffff8880216dc000, ffff8880216dc800)
The buggy address belongs to the page:
page:ffffea000085b600 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x216d8
head:ffffea000085b600 order:3 compound_mapcount:0 compound_pincount:0
flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000010200 ffffea0000911000 0000000200000002 ffff888017042000
raw: 0000000000000000 0000000000080008 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 3569, ts 51060635061, free_ts 51005736197
prep_new_page mm/page_alloc.c:2426 [inline]
get_page_from_freelist+0x322a/0x33c0 mm/page_alloc.c:4159
__alloc_pages+0x272/0x700 mm/page_alloc.c:5423
alloc_slab_page mm/slub.c:1775 [inline]
allocate_slab mm/slub.c:1912 [inline]
new_slab+0xbb/0x4b0 mm/slub.c:1975
___slab_alloc+0x6f6/0xe10 mm/slub.c:3008
__slab_alloc mm/slub.c:3095 [inline]
slab_alloc_node mm/slub.c:3186 [inline]
slab_alloc mm/slub.c:3228 [inline]
__kmalloc_track_caller+0x1c7/0x300 mm/slub.c:4925
kmemdup+0x21/0x50 mm/util.c:128
neigh_sysctl_register+0xb0/0x530 net/core/neighbour.c:3647
devinet_sysctl_register+0x9d/0x1a0 net/ipv4/devinet.c:2627
inetdev_init+0x257/0x470 net/ipv4/devinet.c:276
inetdev_event+0x29b/0x1490 net/ipv4/devinet.c:1530
notifier_call_chain kernel/notifier.c:83 [inline]
raw_notifier_call_chain+0xd0/0x170 kernel/notifier.c:391
call_netdevice_notifiers_info net/core/dev.c:2018 [inline]
call_netdevice_notifiers_extack net/core/dev.c:2030 [inline]
call_netdevice_notifiers+0x145/0x1b0 net/core/dev.c:2044
register_netdevice+0x12e8/0x1720 net/core/dev.c:10388
veth_newlink+0x94f/0xe20 drivers/net/veth.c:1714
__rtnl_newlink net/core/rtnetlink.c:3492 [inline]
rtnl_newlink+0x14e1/0x2070 net/core/rtnetlink.c:3540
rtnetlink_rcv_msg+0x993/0xee0 net/core/rtnetlink.c:5618
page last free stack trace:
reset_page_owner include/linux/page_owner.h:24 [inline]
free_pages_prepare mm/page_alloc.c:1340 [inline]
free_pcp_prepare mm/page_alloc.c:1391 [inline]
free_unref_page_prepare+0xc34/0xcf0 mm/page_alloc.c:3317
free_unref_page+0x95/0x2d0 mm/page_alloc.c:3396
free_slab mm/slub.c:2015 [inline]
discard_slab mm/slub.c:2021 [inline]
__unfreeze_partials+0x1b7/0x210 mm/slub.c:2507
put_cpu_partial+0x132/0x1a0 mm/slub.c:2587
do_slab_free mm/slub.c:3487 [inline]
___cache_free+0xe3/0x100 mm/slub.c:3506
qlist_free_all+0x36/0x90 mm/kasan/quarantine.c:176
kasan_quarantine_reduce+0x162/0x180 mm/kasan/quarantine.c:283
__kasan_slab_alloc+0x2f/0xc0 mm/kasan/common.c:444
kasan_slab_alloc include/linux/kasan.h:254 [inline]
slab_post_alloc_hook+0x53/0x380 mm/slab.h:519
slab_alloc_node mm/slub.c:3220 [inline]
kmem_cache_alloc_node+0x121/0x2c0 mm/slub.c:3256
__alloc_skb+0xdd/0x590 net/core/skbuff.c:415
alloc_skb include/linux/skbuff.h:1167 [inline]
nlmsg_new include/net/netlink.h:953 [inline]
rtmsg_ifinfo_build_skb+0x81/0x180 net/core/rtnetlink.c:3852
rtmsg_ifinfo_event net/core/rtnetlink.c:3888 [inline]
rtnetlink_event+0xee/0x1b0 net/core/rtnetlink.c:5669
notifier_call_chain kernel/notifier.c:83 [inline]
raw_notifier_call_chain+0xd0/0x170 kernel/notifier.c:391
call_netdevice_notifiers_info net/core/dev.c:2018 [inline]
netdev_lower_state_changed+0x1b9/0x260 net/core/dev.c:8566
team_lower_state_changed drivers/net/team/team.c:89 [inline]
team_refresh_port_linkup drivers/net/team/team.c:99 [inline]
__team_port_change_send+0x215/0x5b0 drivers/net/team/team.c:2936
Memory state around the buggy address:
ffff8880216dbf80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
ffff8880216dc000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff8880216dc080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
^
ffff8880216dc100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff8880216dc180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================