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: 20045 at lib/iov_iter.c:629 _copy_from_iter+0x2bf/0x1170
Modules linked in:
CPU: 1 PID: 20045 Comm: syz-executor.4 Not tainted 6.2.0-rc2-next-20230106 #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 45 3a 32 02 e8 7c 28 37 ff be 79 02 00 00 48 c7 c7 c0 d1 9e 84 e8 5b d4 5a ff e9 48 fe ff ff e8 61 28 37 ff <0f> 0b 45 31 f6 eb 87 e8 55 28 37 ff 31 ff 89 ee e8 1c 24 37 ff 40
RSP: 0018:ffff8880407af5e8 EFLAGS: 00010216
RAX: 00000000000016d5 RBX: 0000000000000000 RCX: ffffc900029e4000
RDX: 0000000000040000 RSI: ffffffff82124a1f RDI: 0000000000000001
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: ffff8880407af818
R13: ffffea000101c000 R14: 0000000000000390 R15: ffff8880407af818
FS:  00007f4e49a6d700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fcc5aacb1f0 CR3: 0000000039d7a000 CR4: 0000000000350ee0
Call Trace:
 <TASK>
 copy_page_from_iter+0xe3/0x180
 blk_rq_map_user_iov+0xb0c/0x1650
 blk_rq_map_user_io+0x1ee/0x220
 sg_common_write.constprop.0+0xd84/0x15e0
 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: 0033:0x7f4e4c4f7b19
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:00007f4e49a6d188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f4e4c60af60 RCX: 00007f4e4c4f7b19
RDX: 000000000000002b RSI: 0000000020000380 RDI: 0000000000000007
RBP: 00007f4e4c551f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffeab9853bf R14: 00007f4e49a6d300 R15: 0000000000022000
 </TASK>
irq event stamp: 10597
hardirqs last  enabled at (10659): [<ffffffff8460144a>] asm_sysvec_apic_timer_interrupt+0x1a/0x20
hardirqs last disabled at (10724): [<ffffffff844237ef>] sysvec_apic_timer_interrupt+0xf/0xc0
softirqs last  enabled at (4434): [<ffffffff81181eab>] __irq_exit_rcu+0x11b/0x180
softirqs last disabled at (4129): [<ffffffff81181eab>] __irq_exit_rcu+0x11b/0x180
---[ 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
process 'syz-executor.2' launched './file1' with NULL argv: empty string added
tmpfs: Bad value for 'mpol'
tmpfs: Bad value for 'mpol'
tmpfs: Bad value for 'mpol'