BUG: sleeping function called from invalid context at net/core/sock.c:2863 in_atomic(): 1, irqs_disabled(): 0, pid: 31550, name: syz-executor.1 1 lock held by syz-executor.1/31550: #0: 0000000085f0da75 (hci_sk_list.lock){++++}, at: hci_sock_dev_event+0x3db/0x660 net/bluetooth/hci_sock.c:756 Preemption disabled at: [<0000000000000000>] (null) CPU: 1 PID: 31550 Comm: syz-executor.1 Not tainted 4.19.202-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 ___might_sleep.cold+0x235/0x250 kernel/sched/core.c:6192 lock_sock_nested+0x33/0x110 net/core/sock.c:2863 lock_sock include/net/sock.h:1510 [inline] hci_sock_dev_event+0x465/0x660 net/bluetooth/hci_sock.c:758 hci_unregister_dev+0x25b/0x910 net/bluetooth/hci_core.c:3292 vhci_release+0x70/0xe0 drivers/bluetooth/hci_vhci.c:354 __fput+0x2ce/0x890 fs/file_table.c:278 task_work_run+0x148/0x1c0 kernel/task_work.c:113 exit_task_work include/linux/task_work.h:22 [inline] do_exit+0xbf3/0x2be0 kernel/exit.c:870 do_group_exit+0x125/0x310 kernel/exit.c:967 __do_sys_exit_group kernel/exit.c:978 [inline] __se_sys_exit_group kernel/exit.c:976 [inline] __x64_sys_exit_group+0x3a/0x50 kernel/exit.c:976 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4665e9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fff3f092038 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 0000000000000064 RCX: 00000000004665e9 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 netlink: 4 bytes leftover after parsing attributes in process `syz-executor.4'. RBP: 00000000004bef02 R08: 000000000000000c R09: 0000000002a493bc R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000016 R13: 00007fff3f093310 R14: 0000000002a493bc R15: 00007fff3f094420 overlayfs: failed to resolve 'æil': -2 overlayfs: fs on './file0' does not support file handles, falling back to index=off,nfs_export=off. netlink: 4 bytes leftover after parsing attributes in process `syz-executor.4'. overlayfs: failed to resolve 'æil': -2 overlayfs: overlapping lowerdir path IPVS: ftp: loaded support on port[0] = 21 EXT4-fs warning (device sda1): ext4_resize_begin:72: There are errors in the filesystem, so online resizing is not allowed FAT-fs (loop0): bogus number of reserved sectors FAT-fs (loop0): Can't find a valid FAT filesystem FAT-fs (loop0): bogus number of reserved sectors FAT-fs (loop0): Can't find a valid FAT filesystem EXT4-fs warning (device sda1): ext4_resize_begin:72: There are errors in the filesystem, so online resizing is not allowed IPVS: ftp: loaded support on port[0] = 21 ieee802154 phy0 wpan0: encryption failed: -22 ieee802154 phy1 wpan1: encryption failed: -22 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 audit: type=1800 audit(1628653648.711:233): pid=31879 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed comm="syz-executor.5" name="file1" dev="loop5" ino=5 res=0 IPVS: ftp: loaded support on port[0] = 21 IPVS: ftp: loaded support on port[0] = 21 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 audit: type=1800 audit(1628653651.222:234): pid=31972 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed comm="syz-executor.5" name="file1" dev="loop5" ino=5 res=0 IPVS: ftp: loaded support on port[0] = 21 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 Bluetooth: hci5: command 0x0409 tx timeout