sg_write: data in/out 917468/251 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: 28226 at lib/iov_iter.c:629 _copy_from_iter+0x2b2/0x1140
Modules linked in:
CPU: 0 PID: 28226 Comm: syz-executor.3 Not tainted 6.2.0-rc7-next-20230206 #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 68 33 02 e8 a9 49 36 ff be 79 02 00 00 48 c7 c7 c0 c7 9e 84 e8 b8 01 5a ff e9 51 fe ff ff e8 8e 49 36 ff <0f> 0b 45 31 f6 eb 87 e8 82 49 36 ff 31 ff 89 ee e8 e9 44 36 ff 40
RSP: 0018:ffff88804646f608 EFLAGS: 00010216
RAX: 00000000000066e8 RBX: 0000000000000000 RCX: ffffc900021e8000
RDX: 0000000000040000 RSI: ffffffff82151252 RDI: 0000000000000001
RBP: 0000000000001000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000
R13: ffff88804646f838 R14: 0000000000001000 R15: ffff88804646f838
FS:  00007f5acd40e700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f050e89d3a4 CR3: 000000004c704000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff4ff0 DR7: 0000000000000600
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: 0033:0x7f5acfe98b19
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:00007f5acd40e188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f5acffabf60 RCX: 00007f5acfe98b19
RDX: 0000000000000125 RSI: 00000000200003c0 RDI: 0000000000000005
RBP: 00007f5acfef2f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc96b9ab8f R14: 00007f5acd40e300 R15: 0000000000022000
 </TASK>
irq event stamp: 8773
hardirqs last  enabled at (8815): [<ffffffff8460144a>] asm_sysvec_apic_timer_interrupt+0x1a/0x20
hardirqs last disabled at (8854): [<ffffffff8446423f>] sysvec_apic_timer_interrupt+0xf/0x90
softirqs last  enabled at (5576): [<ffffffff8118cdec>] __irq_exit_rcu+0xcc/0x110
softirqs last disabled at (5549): [<ffffffff8118cdec>] __irq_exit_rcu+0xcc/0x110
---[ end trace 0000000000000000 ]---
sg_write: data in/out 917468/251 bytes for SCSI command 0x0-- guessing data in;
   program syz-executor.3 not setting count and/or reply_len properly
sg_write: data in/out 917468/251 bytes for SCSI command 0x0-- guessing data in;
   program syz-executor.3 not setting count and/or reply_len properly
netlink: 4 bytes leftover after parsing attributes in process `syz-executor.6'.
random: crng reseeded on system resumption
random: crng reseeded on system resumption
random: crng reseeded on system resumption
random: crng reseeded on system resumption
random: crng reseeded on system resumption
device lo left promiscuous mode
device lo entered promiscuous mode
device lo left promiscuous mode
device lo entered promiscuous mode
device lo left promiscuous mode
device lo entered promiscuous mode
device lo left promiscuous mode
device lo entered promiscuous mode
netlink: 4 bytes leftover after parsing attributes in process `syz-executor.7'.