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: 0 PID: 11505 Comm: syz-executor.4 Not tainted 4.19.190-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1fc/0x2ef lib/dump_stack.c:118 assign_lock_key kernel/locking/lockdep.c:728 [inline] register_lock_class+0xe82/0x11c0 kernel/locking/lockdep.c:754 __lock_acquire+0x17d/0x3ff0 kernel/locking/lockdep.c:3304 lock_acquire+0x170/0x3c0 kernel/locking/lockdep.c:3908 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x8c/0xc0 kernel/locking/spinlock.c:152 skb_dequeue+0x1c/0x180 net/core/skbuff.c:2834 skb_queue_purge+0x21/0x30 net/core/skbuff.c:2872 l2cap_chan_del+0x690/0xa50 net/bluetooth/l2cap_core.c:637 l2cap_chan_close+0x1b5/0x950 net/bluetooth/l2cap_core.c:757 l2cap_sock_shutdown+0x339/0xe10 net/bluetooth/l2cap_sock.c:1159 l2cap_sock_release+0x77/0x290 net/bluetooth/l2cap_sock.c:1202 __sock_release+0xcd/0x2a0 net/socket.c:579 sock_close+0x15/0x20 net/socket.c:1140 __fput+0x2ce/0x890 fs/file_table.c:278 task_work_run+0x148/0x1c0 kernel/task_work.c:113 tracehook_notify_resume include/linux/tracehook.h:193 [inline] exit_to_usermode_loop+0x251/0x2a0 arch/x86/entry/common.c:167 prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline] syscall_return_slowpath arch/x86/entry/common.c:271 [inline] do_syscall_64+0x538/0x620 arch/x86/entry/common.c:296 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x41940b Code: 0f 05 48 3d 00 f0 ff ff 77 45 c3 0f 1f 40 00 48 83 ec 18 89 7c 24 0c e8 63 fc ff ff 8b 7c 24 0c 41 89 c0 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 35 44 89 c7 89 44 24 0c e8 a1 fc ff ff 8b 44 RSP: 002b:00007fff1436fd70 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000006 RCX: 000000000041940b RDX: 0000000000570900 RSI: 0000001b30724488 RDI: 0000000000000005 RBP: 0000000000000001 R08: 0000000000000000 R09: 00000000000008d8 R10: 00000000f7b588dc R11: 0000000000000293 R12: 000000000004c340 R13: 00000000000003e8 R14: 000000000056bf60 R15: 000000000004c335 audit: type=1804 audit(1620730871.132:11): pid=11507 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.5" name="/root/syzkaller-testdir706318028/syzkaller.5iTG2L/28/cgroup.controllers" dev="sda1" ino=14129 res=1 kvm: vcpu 0: requested 128 ns lapic timer period limited to 200000 ns device macvlan1 entered promiscuous mode device macvlan1 left promiscuous mode device macvlan1 entered promiscuous mode device macvlan1 left promiscuous mode bridge0: port 2(bridge_slave_1) entered disabled state bridge0: port 1(bridge_slave_0) entered disabled state device bridge0 entered promiscuous mode FAT-fs (loop0): Unrecognized mount option "iocKarset=maciceland" or missing value FAT-fs (loop0): Unrecognized mount option "iocKarset=maciceland" or missing value IPVS: sync thread started: state = BACKUP, mcast_ifn = gre0, syncid = 0, id = 0 IPVS: ftp: loaded support on port[0] = 21 overlayfs: unrecognized mount option "uppebus" or missing value overlayfs: 'file0' not a directory overlayfs: unrecognized mount option "uppebus" or missing value audit: type=1800 audit(1620730871.902:12): pid=11610 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.3" name="file0" dev="sda1" ino=14100 res=0 EXT4-fs (loop0): ext4_check_descriptors: Block bitmap for group 0 not in group (block 0)! EXT4-fs (loop0): group descriptors corrupted! IPVS: sync thread started: state = BACKUP, mcast_ifn = gre0, syncid = 0, id = 0 IPVS: ftp: loaded support on port[0] = 21 audit: type=1804 audit(1620730871.982:13): pid=11610 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.3" name="/root/syzkaller-testdir530724283/syzkaller.WmjtPY/24/file0" dev="sda1" ino=14100 res=1 IPVS: ftp: loaded support on port[0] = 21 IPVS: ftp: loaded support on port[0] = 21 EXT4-fs (sda1): re-mounted. Opts: (null) IPVS: ftp: loaded support on port[0] = 21 EXT4-fs (sda1): re-mounted. Opts: (null) caif:caif_disconnect_client(): nothing to disconnect caif:caif_disconnect_client(): nothing to disconnect IPVS: ftp: loaded support on port[0] = 21 wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 new mount options do not match the existing superblock, will be ignored new mount options do not match the existing superblock, will be ignored audit: type=1800 audit(1620730875.063:14): pid=11987 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.1" name="file0" dev="sda1" ino=14168 res=0 audit: type=1804 audit(1620730875.093:15): pid=11987 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.1" name="/root/syzkaller-testdir182395151/syzkaller.hhNfZ8/27/file0" dev="sda1" ino=14168 res=1 audit: type=1804 audit(1620730875.123:16): pid=11987 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=ToMToU comm="syz-executor.1" name="/root/syzkaller-testdir182395151/syzkaller.hhNfZ8/27/file0" dev="sda1" ino=14168 res=1 audit: type=1804 audit(1620730875.123:17): pid=11987 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.1" name="/root/syzkaller-testdir182395151/syzkaller.hhNfZ8/27/file0" dev="sda1" ino=14168 res=1 audit: type=1804 audit(1620730875.123:18): pid=11987 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=ToMToU comm="syz-executor.1" name="/root/syzkaller-testdir182395151/syzkaller.hhNfZ8/27/file0" dev="sda1" ino=14168 res=1 F2FS-fs (loop4): Magic Mismatch, valid(0xf2f52010) - read(0x0) F2FS-fs (loop4): Can't find valid F2FS filesystem in 2th superblock F2FS-fs (loop4): invalid crc value F2FS-fs (loop4): invalid crc value F2FS-fs (loop4): Failed to get valid F2FS checkpoint F2FS-fs (loop4): Magic Mismatch, valid(0xf2f52010) - read(0x0) F2FS-fs (loop4): Can't find valid F2FS filesystem in 2th superblock F2FS-fs (loop4): invalid crc value F2FS-fs (loop4): invalid crc value F2FS-fs (loop4): Failed to get valid F2FS checkpoint audit: type=1804 audit(1620730875.903:19): pid=12113 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=ToMToU comm="syz-executor.1" name="/root/syzkaller-testdir182395151/syzkaller.hhNfZ8/27/file0" dev="sda1" ino=14168 res=1 audit: type=1804 audit(1620730875.933:20): pid=12113 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.1" name="/root/syzkaller-testdir182395151/syzkaller.hhNfZ8/27/file0" dev="sda1" ino=14168 res=1 EXT4-fs (loop2): Mount option "delalloc" incompatible with ext2 EXT4-fs (loop2): Mount option "delalloc" incompatible with ext2 ieee802154 phy0 wpan0: encryption failed: -22 ieee802154 phy1 wpan1: encryption failed: -22 device bridge1 entered promiscuous mode device bridge2 entered promiscuous mode kauditd_printk_skb: 8 callbacks suppressed audit: type=1800 audit(1620730876.933:29): pid=12204 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.1" name="file0" dev="sda1" ino=14190 res=0 netlink: 172 bytes leftover after parsing attributes in process `syz-executor.4'. audit: type=1804 audit(1620730876.933:30): pid=12204 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.1" name="/root/syzkaller-testdir182395151/syzkaller.hhNfZ8/29/file0" dev="sda1" ino=14190 res=1 audit: type=1804 audit(1620730876.933:31): pid=12204 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=ToMToU comm="syz-executor.1" name="/root/syzkaller-testdir182395151/syzkaller.hhNfZ8/29/file0" dev="sda1" ino=14190 res=1 audit: type=1804 audit(1620730876.953:32): pid=12204 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.1" name="/root/syzkaller-testdir182395151/syzkaller.hhNfZ8/29/file0" dev="sda1" ino=14190 res=1 audit: type=1804 audit(1620730876.953:33): pid=12204 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=ToMToU comm="syz-executor.1" name="/root/syzkaller-testdir182395151/syzkaller.hhNfZ8/29/file0" dev="sda1" ino=14190 res=1 netlink: 'syz-executor.2': attribute type 10 has an invalid length. netlink: 'syz-executor.2': attribute type 10 has an invalid length. netlink: 172 bytes leftover after parsing attributes in process `syz-executor.4'. team0: Port device team_slave_1 removed netlink: 'syz-executor.2': attribute type 10 has an invalid length. IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready team0: Port device team_slave_1 added netlink: 'syz-executor.2': attribute type 10 has an invalid length. team0: Port device team_slave_1 removed audit: type=1800 audit(1620730877.793:34): pid=12270 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.1" name="file0" dev="sda1" ino=14191 res=0 nf_conntrack: default automatic helper assignment has been turned off for security reasons and CT-based firewall rule not found. Use the iptables CT target to attach helpers instead. audit: type=1804 audit(1620730877.813:35): pid=12270 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.1" name="/root/syzkaller-testdir182395151/syzkaller.hhNfZ8/30/file0" dev="sda1" ino=14191 res=1 FAT-fs (loop2): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1) audit: type=1804 audit(1620730877.833:36): pid=12270 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=ToMToU comm="syz-executor.1" name="/root/syzkaller-testdir182395151/syzkaller.hhNfZ8/30/file0" dev="sda1" ino=14191 res=1 FAT-fs (loop2): FAT read failed (blocknr 32) audit: type=1804 audit(1620730877.843:37): pid=12270 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.1" name="/root/syzkaller-testdir182395151/syzkaller.hhNfZ8/30/file0" dev="sda1" ino=14191 res=1 FAT-fs (loop2): FAT read failed (blocknr 32) audit: type=1804 audit(1620730877.843:38): pid=12270 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=ToMToU comm="syz-executor.1" name="/root/syzkaller-testdir182395151/syzkaller.hhNfZ8/30/file0" dev="sda1" ino=14191 res=1 device team_slave_0 entered promiscuous mode block nbd5: NBD_DISCONNECT block nbd5: NBD_DISCONNECT IPVS: ftp: loaded support on port[0] = 21 IPVS: ftp: loaded support on port[0] = 21 EXT4-fs (loop4): mounted filesystem without journal. Opts: ,errors=continue IPVS: ftp: loaded support on port[0] = 21 IPVS: ftp: loaded support on port[0] = 21 IPVS: ftp: loaded support on port[0] = 21 team0: Device vlan2 is already an upper device of the team interface team0: Device vlan2 is already an upper device of the team interface IPVS: ftp: loaded support on port[0] = 21