EXT4-fs (loop6): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none.
sg_write: data in/out 3237192/251 bytes for SCSI command 0x0-- guessing data in;
   program syz-executor.3 not setting count and/or reply_len properly
------------[ cut here ]------------
WARNING: CPU: 0 PID: 4044 at lib/iov_iter.c:385 _copy_from_iter+0x2f1/0x1320
Modules linked in:
CPU: 0 PID: 4044 Comm: syz-executor.3 Not tainted 6.4.0-rc5-next-20230609 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:_copy_from_iter+0x2f1/0x1320
Code: b2 ff ff 89 c3 e9 1f ff ff ff e8 ea f0 35 ff be 85 01 00 00 48 c7 c7 e0 f4 9e 84 e8 c9 4f 5a ff e9 13 fe ff ff e8 cf f0 35 ff <0f> 0b 45 31 f6 e9 67 ff ff ff e8 c0 f0 35 ff 31 ff 89 ee e8 f7 eb
EXT4-fs error (device loop6): ext4_validate_block_bitmap:437: comm syz-executor.6: bg 0: block 2: invalid block bitmap
RSP: 0018:ffff888043caf608 EFLAGS: 00010212
RAX: 0000000000007153 RBX: 0000000000000000 RCX: ffffc90000fd5000
RDX: 0000000000040000 RSI: ffffffff82161ac1 RDI: 0000000000000001
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: ffffffff846000aa R12: 0000000000001000
R13: ffffea00010be200 R14: 0000000000001000 R15: ffff888043caf838
FS:  00007fbd61cf3700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2bf23000 CR3: 000000000e3f6000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 copy_page_from_iter+0xe3/0x180
 blk_rq_map_user_iov+0xb39/0x16c0
 blk_rq_map_user_io+0x1d1/0x200
 sg_common_write.constprop.0+0xd8d/0x15f0
 sg_write.part.0+0x69e/0xac0
 sg_write+0x8d/0xe0
 vfs_write+0x2b9/0xd70
 ksys_write+0x122/0x250
 do_syscall_64+0x3f/0x90
 entry_SYSCALL_64_after_hwframe+0x6e/0xd8
RIP: 0033:0x7fbd6477db19
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:00007fbd61cf3188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fbd64890f60 RCX: 00007fbd6477db19
RDX: 0000000000000125 RSI: 0000000020000200 RDI: 0000000000000003
RBP: 00007fbd647d7f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc876abc9f R14: 00007fbd61cf3300 R15: 0000000000022000
 </TASK>
irq event stamp: 2527
hardirqs last  enabled at (2539): [<ffffffff812fec38>] __up_console_sem+0x78/0x80
hardirqs last disabled at (2550): [<ffffffff812fec1d>] __up_console_sem+0x5d/0x80
softirqs last  enabled at (2434): [<ffffffff8118dd93>] irq_exit_rcu+0x93/0xc0
softirqs last disabled at (2429): [<ffffffff8118dd93>] irq_exit_rcu+0x93/0xc0
---[ end trace 0000000000000000 ]---
EXT4-fs (loop6): unmounting filesystem 00000000-0000-0000-0000-000000000000.
sg_write: data in/out 3237192/251 bytes for SCSI command 0x0-- guessing data in;
   program syz-executor.3 not setting count and/or reply_len properly
Bluetooth: hci4: unexpected cc 0x0c03 length: 249 > 1
Bluetooth: hci4: unexpected cc 0x1003 length: 249 > 9
Bluetooth: hci4: unexpected cc 0x1001 length: 249 > 9
Bluetooth: hci4: unexpected cc 0x0c23 length: 249 > 4
Bluetooth: hci4: unexpected cc 0x0c25 length: 249 > 3
Bluetooth: hci4: unexpected cc 0x0c38 length: 249 > 2
Bluetooth: hci4: command 0x0409 tx timeout
Bluetooth: hci4: command 0x041b tx timeout
Bluetooth: hci4: command 0x040f tx timeout