FAT-fs (loop4): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1)
netlink: 24 bytes leftover after parsing attributes in process `syz-executor.2'.
INFO: trying to register non-static key.
the code is fine but needs lockdep annotation.
turning off the locking correctness validator.
CPU: 1 PID: 15576 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
 get_signal+0x18a3/0x1ca0 kernel/signal.c:2234
 do_signal+0x7c/0x1550 arch/x86/kernel/signal.c:792
 exit_to_usermode_loop+0x160/0x200 arch/x86/entry/common.c:160
 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: 0033:0x4665f9
RSP: 002b:00007fa519adb188 EFLAGS: 00000246 ORIG_RAX: 000000000000002a
RAX: fffffffffffffffc RBX: 000000000056c0b0 RCX: 00000000004665f9
RDX: 000000000000000e RSI: 0000000020000000 RDI: 0000000000000004
RBP: 00000000004bfce1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056c0b0
R13: 00007fff78e0de2f R14: 00007fa519adb300 R15: 0000000000022000
kauditd_printk_skb: 7 callbacks suppressed
audit: type=1800 audit(1620797557.121:230): pid=15618 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed(directio)" comm="syz-executor.4" name="file0" dev="sda1" ino=14620 res=0
audit: type=1804 audit(1620797557.131:231): pid=15618 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor.4" name="/root/syzkaller-testdir244704480/syzkaller.GkVTLo/232/file0" dev="sda1" ino=14620 res=1
audit: type=1804 audit(1620797557.131:232): pid=15618 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="ToMToU" comm="syz-executor.4" name="/root/syzkaller-testdir244704480/syzkaller.GkVTLo/232/file0" dev="sda1" ino=14620 res=1
audit: type=1804 audit(1620797557.161:233): pid=15618 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor.4" name="/root/syzkaller-testdir244704480/syzkaller.GkVTLo/232/file0" dev="sda1" ino=14620 res=1
audit: type=1804 audit(1620797557.161:234): pid=15618 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="ToMToU" comm="syz-executor.4" name="/root/syzkaller-testdir244704480/syzkaller.GkVTLo/232/file0" dev="sda1" ino=14620 res=1
IPv6: ADDRCONF(NETDEV_UP): bond1: link is not ready
8021q: adding VLAN 0 to HW filter on device bond1
bond1: Enslaving gretap1 as a backup interface with an up link
bond1 (unregistering): Releasing backup interface gretap1
bond1 (unregistering): Released all slaves
IPv6: ADDRCONF(NETDEV_UP): bond1: link is not ready
8021q: adding VLAN 0 to HW filter on device bond1
audit: type=1800 audit(1620797557.711:235): pid=15785 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed(directio)" comm="syz-executor.4" name="file0" dev="sda1" ino=14628 res=0
audit: type=1804 audit(1620797557.721:236): pid=15785 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor.4" name="/root/syzkaller-testdir244704480/syzkaller.GkVTLo/233/file0" dev="sda1" ino=14628 res=1
IPv6: ADDRCONF(NETDEV_UP): bond2: link is not ready
8021q: adding VLAN 0 to HW filter on device bond2
audit: type=1804 audit(1620797557.721:237): pid=15785 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="ToMToU" comm="syz-executor.4" name="/root/syzkaller-testdir244704480/syzkaller.GkVTLo/233/file0" dev="sda1" ino=14628 res=1
bond2: Enslaving gretap3 as a backup interface with an up link
audit: type=1804 audit(1620797557.731:238): pid=15785 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor.4" name="/root/syzkaller-testdir244704480/syzkaller.GkVTLo/233/file0" dev="sda1" ino=14628 res=1
audit: type=1804 audit(1620797557.731:239): pid=15785 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="ToMToU" comm="syz-executor.4" name="/root/syzkaller-testdir244704480/syzkaller.GkVTLo/233/file0" dev="sda1" ino=14628 res=1
bond2 (unregistering): Releasing backup interface gretap3
bond2 (unregistering): Released all slaves
IPv6: ADDRCONF(NETDEV_UP): bond2: link is not ready
8021q: adding VLAN 0 to HW filter on device bond2
bond2: Enslaving gretap4 as a backup interface with an up link
bond2 (unregistering): Releasing backup interface gretap4
bond2 (unregistering): Released all slaves
IPv6: ADDRCONF(NETDEV_UP): bond2: link is not ready
8021q: adding VLAN 0 to HW filter on device bond2
bond2: Enslaving gretap5 as a backup interface with an up link
bond2 (unregistering): Releasing backup interface gretap5
bond2 (unregistering): Released all slaves
FAT-fs (loop4): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1)
FAT-fs (loop4): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1)
FAT-fs (loop4): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1)
FAT-fs (loop4): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1)
FAT-fs (loop4): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1)
FAT-fs (loop4): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1)
FAT-fs (loop4): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1)
FAT-fs (loop4): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1)
FAT-fs (loop4): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1)
kauditd_printk_skb: 25 callbacks suppressed
audit: type=1800 audit(1620797562.261:265): pid=16295 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed(directio)" comm="syz-executor.4" name="file0" dev="loop4" ino=41 res=0
audit: type=1804 audit(1620797562.301:266): pid=16295 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor.4" name="/root/syzkaller-testdir244704480/syzkaller.GkVTLo/239/file0/file0" dev="loop4" ino=41 res=1
audit: type=1804 audit(1620797562.301:267): pid=16295 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="ToMToU" comm="syz-executor.4" name="/root/syzkaller-testdir244704480/syzkaller.GkVTLo/239/file0/file0" dev="loop4" ino=41 res=1
audit: type=1804 audit(1620797562.301:268): pid=16295 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor.4" name="/root/syzkaller-testdir244704480/syzkaller.GkVTLo/239/file0/file0" dev="loop4" ino=41 res=1
audit: type=1804 audit(1620797562.301:269): pid=16295 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="ToMToU" comm="syz-executor.4" name="/root/syzkaller-testdir244704480/syzkaller.GkVTLo/239/file0/file0" dev="loop4" ino=41 res=1
FAT-fs (loop4): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1)
FAT-fs (loop4): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1)
audit: type=1800 audit(1620797562.711:270): pid=16350 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed(directio)" comm="syz-executor.4" name="file0" dev="loop4" ino=42 res=0
audit: type=1804 audit(1620797562.711:271): pid=16350 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor.4" name="/root/syzkaller-testdir244704480/syzkaller.GkVTLo/240/file0/file0" dev="loop4" ino=42 res=1
audit: type=1804 audit(1620797562.711:272): pid=16350 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="ToMToU" comm="syz-executor.4" name="/root/syzkaller-testdir244704480/syzkaller.GkVTLo/240/file0/file0" dev="loop4" ino=42 res=1
audit: type=1804 audit(1620797562.731:273): pid=16350 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor.4" name="/root/syzkaller-testdir244704480/syzkaller.GkVTLo/240/file0/file0" dev="loop4" ino=42 res=1
audit: type=1804 audit(1620797562.731:274): pid=16350 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="ToMToU" comm="syz-executor.4" name="/root/syzkaller-testdir244704480/syzkaller.GkVTLo/240/file0/file0" dev="loop4" ino=42 res=1
FAT-fs (loop4): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1)
Bluetooth: hci5 command 0x0405 tx timeout