INFO: trying to register non-static key.
the code is fine but needs lockdep annotation.
turning off the locking correctness validator.
CPU: 1 PID: 12177 Comm: syz-executor.2 Not tainted 4.14.232-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0x1b2/0x281 lib/dump_stack.c:58
 register_lock_class+0x32b/0x1320 kernel/locking/lockdep.c:768
 __lock_acquire+0x167/0x3f20 kernel/locking/lockdep.c:3378
 lock_acquire+0x170/0x3f0 kernel/locking/lockdep.c:3998
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
 _raw_spin_lock_irqsave+0x8c/0xc0 kernel/locking/spinlock.c:160
 skb_dequeue+0x1c/0x180 net/core/skbuff.c:2831
 skb_queue_purge+0x21/0x30 net/core/skbuff.c:2869
 l2cap_chan_del+0x56d/0x950 net/bluetooth/l2cap_core.c:637
 l2cap_chan_close+0x103/0x870 net/bluetooth/l2cap_core.c:757
 l2cap_sock_shutdown+0x2e7/0xc20 net/bluetooth/l2cap_sock.c:1160
 l2cap_sock_release+0x77/0x280 net/bluetooth/l2cap_sock.c:1203
 __sock_release+0xcd/0x2b0 net/socket.c:602
 sock_close+0x15/0x20 net/socket.c:1139
 __fput+0x25f/0x7a0 fs/file_table.c:210
 task_work_run+0x11f/0x190 kernel/task_work.c:113
 tracehook_notify_resume include/linux/tracehook.h:191 [inline]
 exit_to_usermode_loop+0x1ad/0x200 arch/x86/entry/common.c:164
 prepare_exit_to_usermode arch/x86/entry/common.c:199 [inline]
 syscall_return_slowpath arch/x86/entry/common.c:270 [inline]
 do_syscall_64+0x4a3/0x640 arch/x86/entry/common.c:297
 entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x4193eb
RSP: 002b:00007fffdb4160b0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000005 RCX: 00000000004193eb
RDX: 00000000005707a0 RSI: 00000000000f4240 RDI: 0000000000000004
RBP: 0000000000000000 R08: 0000000000000000 R09: 00000000005705a0
R10: 001385d03cd460a8 R11: 0000000000000293 R12: 0000000000035dbc
R13: 00000000000003e8 R14: 000000000056bf60 R15: 0000000000035dab
overlayfs: unrecognized mount option "lowerdZ" or missing value
print_req_error: I/O error, dev loop2, sector 2
Buffer I/O error on dev loop2, logical block 2, async page read
print_req_error: I/O error, dev loop2, sector 3
overlayfs: unrecognized mount option "lowerdZ" or missing value
Buffer I/O error on dev loop2, logical block 3, async page read
print_req_error: I/O error, dev loop2, sector 4
Buffer I/O error on dev loop2, logical block 4, async page read
print_req_error: I/O error, dev loop2, sector 5
Buffer I/O error on dev loop2, logical block 5, async page read
print_req_error: I/O error, dev loop2, sector 6
Buffer I/O error on dev loop2, logical block 6, async page read
print_req_error: I/O error, dev loop2, sector 7
Buffer I/O error on dev loop2, logical block 7, async page read
SQUASHFS error: lzo decompression failed, data probably corrupt
SQUASHFS error: squashfs_read_data failed to read block 0x60
SQUASHFS error: Unable to read fragment cache entry [60]
SQUASHFS error: Unable to read page, block 60, size 1f
SQUASHFS error: Unable to read fragment cache entry [60]
SQUASHFS error: Unable to read page, block 60, size 1f
netlink: 24 bytes leftover after parsing attributes in process `syz-executor.2'.
EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue
netlink: 24 bytes leftover after parsing attributes in process `syz-executor.2'.
netlink: 24 bytes leftover after parsing attributes in process `syz-executor.2'.
netlink: 24 bytes leftover after parsing attributes in process `syz-executor.2'.
SQUASHFS error: lzo decompression failed, data probably corrupt
SQUASHFS error: squashfs_read_data failed to read block 0x60
SQUASHFS error: Unable to read fragment cache entry [60]
SQUASHFS error: Unable to read page, block 60, size 1f
SQUASHFS error: Unable to read fragment cache entry [60]
SQUASHFS error: Unable to read page, block 60, size 1f
Bluetooth: hci5 command 0x0405 tx timeout
print_req_error: I/O error, dev loop5, sector 0
batman_adv: batadv0: Interface deactivated: batadv_slave_0
batman_adv: batadv0: Removing interface: batadv_slave_0
hfs: can't find a HFS filesystem on dev loop4
team0: Device batadv_slave_0 is up. Set it down before adding it as a team port
netlink: 24 bytes leftover after parsing attributes in process `syz-executor.3'.
hpfs: bad mount options.
hfs: can't find a HFS filesystem on dev loop4
netlink: 24 bytes leftover after parsing attributes in process `syz-executor.3'.
team0: Device batadv_slave_0 is up. Set it down before adding it as a team port
hpfs: bad mount options.
netlink: 24 bytes leftover after parsing attributes in process `syz-executor.5'.
squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on loop2
team0: Device batadv_slave_0 is up. Set it down before adding it as a team port
netlink: 24 bytes leftover after parsing attributes in process `syz-executor.5'.
REISERFS warning (device loop3): super-6502 reiserfs_getopt: unknown mount option "jÀ·L€	\Ì	àqfmt=vfsv0"
REISERFS warning (device loop3): super-6502 reiserfs_getopt: unknown mount option "jÀ·L€	\Ì	àqfmt=vfsv0"
kauditd_printk_skb: 4 callbacks suppressed
audit: type=1804 audit(1621397424.307:189): pid=12432 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor.1" name="/root/syzkaller-testdir419505061/syzkaller.7pifu7/124/bus" dev="sda1" ino=14050 res=1
audit: type=1804 audit(1621397424.307:190): pid=12432 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor.1" name="/root/syzkaller-testdir419505061/syzkaller.7pifu7/124/bus" dev="sda1" ino=14050 res=1
REISERFS warning (device loop3): super-6502 reiserfs_getopt: unknown mount option "jÀ·L€	\Ì	àqfmt=vfsv0"
device veth1_macvtap left promiscuous mode
REISERFS warning (device loop3): super-6502 reiserfs_getopt: unknown mount option "jÀ·L€	\Ì	àqfmt=vfsv0"
device macsec0 entered promiscuous mode
device veth1_macvtap entered promiscuous mode
device macsec0 left promiscuous mode
device veth1_macvtap left promiscuous mode
device macsec0 entered promiscuous mode
device veth1_macvtap entered promiscuous mode
device macsec0 left promiscuous mode
REISERFS warning (device loop3): super-6502 reiserfs_getopt: unknown mount option "jÀ·L€	\Ì	àqfmt=vfsv0"
netlink: 8 bytes leftover after parsing attributes in process `syz-executor.4'.
netlink: 40 bytes leftover after parsing attributes in process `syz-executor.4'.
device veth1_macvtap left promiscuous mode
device macsec0 entered promiscuous mode
device veth1_macvtap entered promiscuous mode
device macsec0 left promiscuous mode
batman_adv: batadv0: Interface deactivated: batadv_slave_0
batman_adv: batadv0: Removing interface: batadv_slave_0
batman_adv: batadv0: Interface deactivated: batadv_slave_1
batman_adv: batadv0: Removing interface: batadv_slave_1
device bridge_slave_1 left promiscuous mode
bridge0: port 2(bridge_slave_1) entered disabled state
device bridge_slave_0 left promiscuous mode
bridge0: port 1(bridge_slave_0) entered disabled state
device veth1_macvtap left promiscuous mode
device veth0_macvtap left promiscuous mode
device veth1_vlan left promiscuous mode
device veth0_vlan left promiscuous mode
device hsr_slave_1 left promiscuous mode
device hsr_slave_0 left promiscuous mode
team0 (unregistering): Port device team_slave_1 removed
team0 (unregistering): Port device team_slave_0 removed
bond0 (unregistering): Releasing backup interface bond_slave_1
bond0 (unregistering): Releasing backup interface bond_slave_0
bond0 (unregistering): Released all slaves
IPVS: ftp: loaded support on port[0] = 21
chnl_net:caif_netlink_parms(): no params data found
bridge0: port 1(bridge_slave_0) entered blocking state
bridge0: port 1(bridge_slave_0) entered disabled state
device bridge_slave_0 entered promiscuous mode
bridge0: port 2(bridge_slave_1) entered blocking state
bridge0: port 2(bridge_slave_1) entered disabled state
device bridge_slave_1 entered promiscuous mode
bond0: Enslaving bond_slave_0 as an active interface with an up link
bond0: Enslaving bond_slave_1 as an active interface with an up link
IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready
team0: Port device team_slave_0 added
IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready
team0: Port device team_slave_1 added
batman_adv: batadv0: Adding interface: batadv_slave_0
batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem.
batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active
batman_adv: batadv0: Adding interface: batadv_slave_1
batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem.
batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active
IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready
IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready
device hsr_slave_0 entered promiscuous mode
device hsr_slave_1 entered promiscuous mode
IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready
IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready
bridge0: port 2(bridge_slave_1) entered blocking state
bridge0: port 2(bridge_slave_1) entered forwarding state
bridge0: port 1(bridge_slave_0) entered blocking state
bridge0: port 1(bridge_slave_0) entered forwarding state
IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready
8021q: adding VLAN 0 to HW filter on device bond0
IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready
IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready
bridge0: port 1(bridge_slave_0) entered disabled state
bridge0: port 2(bridge_slave_1) entered disabled state
IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready
8021q: adding VLAN 0 to HW filter on device team0
IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready
bridge0: port 1(bridge_slave_0) entered blocking state
bridge0: port 1(bridge_slave_0) entered forwarding state
IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready
bridge0: port 2(bridge_slave_1) entered blocking state
bridge0: port 2(bridge_slave_1) entered forwarding state
IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready
IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready
IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready
IPv6: ADDRCONF(NETDEV_UP): vxcan0: link is not ready
IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready
8021q: adding VLAN 0 to HW filter on device batadv0
IPv6: ADDRCONF(NETDEV_UP): veth0_virt_wifi: link is not ready
IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready
IPv6: ADDRCONF(NETDEV_UP): veth0_vlan: link is not ready
IPv6: ADDRCONF(NETDEV_UP): vlan0: link is not ready
IPv6: ADDRCONF(NETDEV_UP): vlan1: link is not ready
IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready
device veth0_vlan entered promiscuous mode
device veth1_vlan entered promiscuous mode
IPv6: ADDRCONF(NETDEV_UP): macvlan0: link is not ready
IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready
IPv6: ADDRCONF(NETDEV_UP): macvlan1: link is not ready
IPv6: ADDRCONF(NETDEV_UP): veth0_macvtap: link is not ready
IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready
device veth0_macvtap entered promiscuous mode
IPv6: ADDRCONF(NETDEV_UP): macvtap0: link is not ready
device veth1_macvtap entered promiscuous mode
IPv6: ADDRCONF(NETDEV_UP): veth0_to_batadv: link is not ready
IPv6: ADDRCONF(NETDEV_UP): veth1_to_batadv: link is not ready
batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3d) already exists on: batadv_slave_0
batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3d) already exists on: batadv_slave_0
batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3d) already exists on: batadv_slave_0
batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3d) already exists on: batadv_slave_0
batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
batman_adv: batadv0: Interface activated: batadv_slave_0
IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready
batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_1
batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_1
batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_1
batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_1
batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_1
batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
batman_adv: batadv0: Interface activated: batadv_slave_1
IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready
device veth1_macvtap left promiscuous mode
device macsec0 entered promiscuous mode
REISERFS warning (device loop3): super-6502 reiserfs_getopt: unknown mount option "jÀ·L€	\Ì	àqfmt=vfsv0"
device veth1_macvtap entered promiscuous mode
device macsec0 left promiscuous mode
device veth1_macvtap left promiscuous mode
REISERFS warning (device loop3): super-6502 reiserfs_getopt: unknown mount option "jÀ·L€	\Ì	àqfmt=vfsv0"
device macsec0 entered promiscuous mode
device veth1_macvtap entered promiscuous mode
device macsec0 left promiscuous mode
REISERFS warning (device loop3): super-6502 reiserfs_getopt: unknown mount option "jÀ·L€	\Ì	àqfmt=vfsv0"
device veth1_macvtap left promiscuous mode
EXT4-fs (loop5): Unrecognized mount option "2P1
Ö……³Ë"”ºØ¼]°íë<‘ 
z:̃·¬\§;zxÚbýNéT" or missing value
device macsec0 entered promiscuous mode
device veth1_macvtap entered promiscuous mode
device macsec0 left promiscuous mode
print_req_error: I/O error, dev loop5, sector 0
Buffer I/O error on dev loop5, logical block 0, async page read
Bluetooth: hci4 command 0x0409 tx timeout
device veth1_macvtap left promiscuous mode
device macsec0 entered promiscuous mode
REISERFS warning (device loop3): super-6502 reiserfs_getopt: unknown mount option "jÀ·L€	\Ì	àqfmt=vfsv0"
device veth1_macvtap entered promiscuous mode
device macsec0 left promiscuous mode
IPv6: ADDRCONF(NETDEV_UP): macsec0: link is not ready
IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready
REISERFS warning (device loop3): super-6502 reiserfs_getopt: unknown mount option "jÀ·L€	\Ì	àqfmt=vfsv0"
device veth1_macvtap left promiscuous mode
device macsec0 entered promiscuous mode
device veth1_macvtap entered promiscuous mode
device macsec0 left promiscuous mode
REISERFS warning (device loop3): super-6502 reiserfs_getopt: unknown mount option "jÀ·L€	\Ì	àqfmt=vfsv0"
REISERFS warning (device loop3): super-6502 reiserfs_getopt: unknown mount option "jÀ·L€	\Ì	àqfmt=vfsv0"
device veth1_macvtap left promiscuous mode
device macsec0 entered promiscuous mode
device veth1_macvtap entered promiscuous mode
device macsec0 left promiscuous mode
IPv6: ADDRCONF(NETDEV_UP): macsec0: link is not ready
IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready
device veth1_macvtap left promiscuous mode
device macsec0 entered promiscuous mode
device veth1_macvtap entered promiscuous mode
device macsec0 left promiscuous mode
Bluetooth: hci4 command 0x041b tx timeout