sg_write: data in/out 912/1 bytes for SCSI command 0x10-- guessing data in;
   program syz-executor.4 not setting count and/or reply_len properly
------------[ cut here ]------------
WARNING: CPU: 1 PID: 7987 at lib/iov_iter.c:364 _copy_from_iter+0x2b2/0x1140
Modules linked in:
CPU: 1 PID: 7987 Comm: syz-executor.4 Not tainted 6.2.0-rc7-next-20230210 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:_copy_from_iter+0x2b2/0x1140
Code: 5d 41 5e 41 5f e9 d2 5f 33 02 e8 69 13 36 ff be 70 01 00 00 48 c7 c7 a0 cc 9e 84 e8 c8 e8 59 ff e9 51 fe ff ff e8 4e 13 36 ff <0f> 0b 45 31 f6 eb 87 e8 42 13 36 ff 31 ff 89 ee e8 a9 0e 36 ff 40
RSP: 0018:ffff88803f077608 EFLAGS: 00010212
RAX: 0000000000000e08 RBX: 0000000000000000 RCX: ffffc9000903b000
RDX: 0000000000040000 RSI: ffffffff82155c52 RDI: 0000000000000001
RBP: 0000000000000390 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000
R13: ffff88803f077838 R14: 0000000000000390 R15: ffff88803f077838
FS:  00007f69872ea700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2c726000 CR3: 000000003cfc4000 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+0x698/0xac0
 sg_write+0x8d/0xe0
 vfs_write+0x2cf/0xdc0
 ksys_write+0x12b/0x260
 do_syscall_64+0x3f/0x90
 entry_SYSCALL_64_after_hwframe+0x72/0xdc
RIP: 0033:0x7f6989d74b19
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:00007f69872ea188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f6989e87f60 RCX: 00007f6989d74b19
RDX: 000000000000002b RSI: 0000000020000380 RDI: 0000000000000007
RBP: 00007f6989dcef6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffdced3241f R14: 00007f69872ea300 R15: 0000000000022000
 </TASK>
irq event stamp: 7649
hardirqs last  enabled at (7659): [<ffffffff812fa788>] __up_console_sem+0x78/0x80
hardirqs last disabled at (7712): [<ffffffff812fa76d>] __up_console_sem+0x5d/0x80
softirqs last  enabled at (5346): [<ffffffff8118ddbc>] __irq_exit_rcu+0xcc/0x110
softirqs last disabled at (5309): [<ffffffff8118ddbc>] __irq_exit_rcu+0xcc/0x110
---[ end trace 0000000000000000 ]---
sg_write: data in/out 912/1 bytes for SCSI command 0x10-- guessing data in;
   program syz-executor.4 not setting count and/or reply_len properly
sg_write: data in/out 912/1 bytes for SCSI command 0x10-- guessing data in;
   program syz-executor.4 not setting count and/or reply_len properly
sg_write: data in/out 912/1 bytes for SCSI command 0x10-- guessing data in;
   program syz-executor.4 not setting count and/or reply_len properly
sg_write: data in/out 912/1 bytes for SCSI command 0x10-- guessing data in;
   program syz-executor.0 not setting count and/or reply_len properly
sg_write: data in/out 912/1 bytes for SCSI command 0x10-- guessing data in;
   program syz-executor.3 not setting count and/or reply_len properly
sg_write: data in/out 912/1 bytes for SCSI command 0x10-- guessing data in;
   program syz-executor.1 not setting count and/or reply_len properly
sg_write: data in/out 912/1 bytes for SCSI command 0x10-- guessing data in;
   program syz-executor.4 not setting count and/or reply_len properly
sg_write: data in/out 912/1 bytes for SCSI command 0x10-- guessing data in;
   program syz-executor.0 not setting count and/or reply_len properly
Bluetooth: hci0: command 0x0406 tx timeout
Bluetooth: hci4: command 0x0406 tx timeout
Bluetooth: hci7: command 0x0406 tx timeout
Bluetooth: hci5: command 0x0406 tx timeout
Bluetooth: hci1: command 0x0406 tx timeout
Bluetooth: hci2: command 0x0406 tx timeout
Bluetooth: hci6: command 0x0406 tx timeout
Bluetooth: hci3: command 0x0406 tx timeout
sg_write: data in/out 912/1 bytes for SCSI command 0x10-- guessing data in;
   program syz-executor.3 not setting count and/or reply_len properly
9pnet_fd: p9_fd_create_tcp (8117): problem connecting socket to 127.0.0.1
9pnet_fd: p9_fd_create_tcp (8121): problem connecting socket to 127.0.0.1
syz-executor.1 uses obsolete (PF_INET,SOCK_PACKET)
random: crng reseeded on system resumption
Restarting kernel threads ... done.
random: crng reseeded on system resumption
Restarting kernel threads ... done.
random: crng reseeded on system resumption
Restarting kernel threads ... done.