sg_write: data in/out 917468/251 bytes for SCSI command 0x0-- guessing data in;
   program syz-executor.2 not setting count and/or reply_len properly
------------[ cut here ]------------
WARNING: CPU: 1 PID: 7711 at lib/iov_iter.c:629 _copy_from_iter+0x2bf/0x1170
Modules linked in:
CPU: 1 PID: 7711 Comm: syz-executor.2 Not tainted 6.2.0-rc4-next-20230118 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:_copy_from_iter+0x2bf/0x1170
Code: 5d 41 5e 41 5f e9 25 ba 32 02 e8 4c 97 37 ff be 79 02 00 00 48 c7 c7 40 e0 9e 84 e8 bb 29 5b ff e9 48 fe ff ff e8 31 97 37 ff <0f> 0b 45 31 f6 eb 87 e8 25 97 37 ff 31 ff 89 ee e8 ec 92 37 ff 40
RSP: 0018:ffff8880448df608 EFLAGS: 00010212
RAX: 0000000000008d81 RBX: 0000000000000000 RCX: ffffc900049a8000
RDX: 0000000000040000 RSI: ffffffff8211eb3f RDI: 0000000000000001
RBP: 0000000000001000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: ffff8880448df838
R13: ffffea00010e4a00 R14: 0000000000001000 R15: ffff8880448df838
FS:  00007fa146a53700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
random: crng reseeded on system resumption
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555555ac1708 CR3: 00000000068e6000 CR4: 0000000000350ee0
Call Trace:
 <TASK>
 copy_page_from_iter+0x251/0x430
 blk_rq_map_user_iov+0xb41/0x16c0
 blk_rq_map_user_io+0x1d1/0x200
 sg_common_write.constprop.0+0xd8d/0x15f0
 sg_write.part.0+0x698/0xa90
 sg_write+0x8d/0xe0
 vfs_write+0x2cf/0xdd0
 ksys_write+0x12b/0x260
 do_syscall_64+0x3f/0x90
 entry_SYSCALL_64_after_hwframe+0x72/0xdc
RIP: 0033:0x7fa1494ddb19
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:00007fa146a53188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fa1495f0f60 RCX: 00007fa1494ddb19
RDX: 0000000000000125 RSI: 00000000200003c0 RDI: 0000000000000005
RBP: 00007fa149537f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc8c43dcef R14: 00007fa146a53300 R15: 0000000000022000
 </TASK>
irq event stamp: 10373
hardirqs last  enabled at (10409): [<ffffffff812e17f8>] __up_console_sem+0x78/0x80
hardirqs last disabled at (10508): [<ffffffff844258ff>] sysvec_apic_timer_interrupt+0xf/0xc0
softirqs last  enabled at (1600): [<ffffffff8118247f>] irq_exit_rcu+0x11f/0x190
softirqs last disabled at (1465): [<ffffffff8118247f>] irq_exit_rcu+0x11f/0x190
---[ end trace 0000000000000000 ]---
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=61 sclass=netlink_route_socket pid=7721 comm=syz-executor.2
audit: type=1400 audit(1674056486.383:10): avc:  denied  { read } for  pid=7707 comm="syz-executor.2" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=perf_event permissive=1
sg_write: data in/out 917468/251 bytes for SCSI command 0x0-- guessing data in;
   program syz-executor.2 not setting count and/or reply_len properly
loop1: detected capacity change from 0 to 40
Bluetooth: hci0: command 0x0406 tx timeout
Bluetooth: hci1: command 0x0406 tx timeout
Bluetooth: hci2: command 0x0406 tx timeout
Bluetooth: hci7: command 0x0406 tx timeout
Bluetooth: hci4: command 0x0406 tx timeout
Bluetooth: hci3: command 0x0406 tx timeout
Bluetooth: hci6: command 0x0406 tx timeout
Bluetooth: hci5: command 0x0406 tx timeout