sg_write: data in/out 917468/251 bytes for SCSI command 0x0-- guessing data in;
   program syz-executor.1 not setting count and/or reply_len properly
------------[ cut here ]------------
WARNING: CPU: 1 PID: 297224 at lib/iov_iter.c:629 _copy_from_iter+0x2bf/0x1170
Modules linked in:
CPU: 1 PID: 297224 Comm: syz-executor.1 Not tainted 6.2.0-rc3-next-20230112 #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 a5 8f 32 02 e8 9c 6c 37 ff be 79 02 00 00 48 c7 c7 00 dc 9e 84 e8 7b 0e 5b ff e9 48 fe ff ff e8 81 6c 37 ff <0f> 0b 45 31 f6 eb 87 e8 75 6c 37 ff 31 ff 89 ee e8 3c 68 37 ff 40
RSP: 0018:ffff88804a467608 EFLAGS: 00010216
RAX: 0000000000003191 RBX: 0000000000000000 RCX: ffffc90005277000
RDX: 0000000000040000 RSI: ffffffff821206bf RDI: 0000000000000001
RBP: 0000000000001000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: ffff88804a467838
R13: ffffea000124f200 R14: 0000000000001000 R15: ffff88804a467838
FS:  00007fea110c2700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fea110a1718 CR3: 0000000038dcc000 CR4: 0000000000350ee0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 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+0x698/0xa90
 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: 0033:0x7fea13b6db19
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:00007fea110c2188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fea13c81020 RCX: 00007fea13b6db19
RDX: 0000000000000125 RSI: 00000000200003c0 RDI: 0000000000000007
RBP: 00007fea13bc7f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd15de2c3f R14: 00007fea110c2300 R15: 0000000000022000
 </TASK>
irq event stamp: 1601
hardirqs last  enabled at (1613): [<ffffffff812e0d28>] __up_console_sem+0x78/0x80
hardirqs last disabled at (1626): [<ffffffff812e0d0d>] __up_console_sem+0x5d/0x80
softirqs last  enabled at (244): [<ffffffff81181deb>] __irq_exit_rcu+0x11b/0x180
softirqs last disabled at (123): [<ffffffff81181deb>] __irq_exit_rcu+0x11b/0x180
---[ end trace 0000000000000000 ]---
EXT4-fs (sda): re-mounted 7b5d9a40-9011-49ec-8035-27953f97a4d8. Quota mode: none.
EXT4-fs (sda): re-mounted 7b5d9a40-9011-49ec-8035-27953f97a4d8. Quota mode: none.
sg_write: data in/out 917468/251 bytes for SCSI command 0x0-- guessing data in;
   program syz-executor.1 not setting count and/or reply_len properly
EXT4-fs (sda): re-mounted 7b5d9a40-9011-49ec-8035-27953f97a4d8. Quota mode: none.
EXT4-fs (sda): re-mounted 7b5d9a40-9011-49ec-8035-27953f97a4d8. Quota mode: none.
EXT4-fs (sda): re-mounted 7b5d9a40-9011-49ec-8035-27953f97a4d8. Quota mode: none.
sg_write: data in/out 917468/251 bytes for SCSI command 0x0-- guessing data in;
   program syz-executor.1 not setting count and/or reply_len properly
EXT4-fs (sda): re-mounted 7b5d9a40-9011-49ec-8035-27953f97a4d8. Quota mode: none.
EXT4-fs (sda): re-mounted 7b5d9a40-9011-49ec-8035-27953f97a4d8. Quota mode: none.