sg_write: data in/out 917468/251 bytes for SCSI command 0x0-- guessing data in;
   program syz-executor.7 not setting count and/or reply_len properly
------------[ cut here ]------------
WARNING: CPU: 1 PID: 46276 at lib/iov_iter.c:376 _copy_from_iter+0x2bf/0x1200
Modules linked in:
CPU: 1 PID: 46276 Comm: syz-executor.7 Not tainted 6.3.0-rc5-next-20230405 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:_copy_from_iter+0x2bf/0x1200
Code: 5d 41 5e 41 5f e9 d5 16 35 02 e8 7c 68 36 ff be 7c 01 00 00 48 c7 c7 60 ce 9e 84 e8 9b 73 5a ff e9 48 fe ff ff e8 61 68 36 ff <0f> 0b 45 31 f6 eb 87 e8 55 68 36 ff 31 ff 89 ee e8 8c 63 36 ff 40
RSP: 0018:ffff88801f84f608 EFLAGS: 00010206
RAX: 00000000000043b0 RBX: 0000000000000000 RCX: ffffc90009957000
RDX: 0000000000040000 RSI: ffffffff82154d4f RDI: 0000000000000001
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: ffff88801f84f838
R13: ffffea00007dc600 R14: 0000000000001000 R15: ffff88801f84f838
FS:  00007fea76923700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055a8065f8080 CR3: 0000000029306000 CR4: 0000000000350ee0
DR0: 0000000020000100 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <TASK>
 copy_page_from_iter+0xe3/0x180
 blk_rq_map_user_iov+0xb39/0x16c0
 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+0x2d8/0xdc0
 ksys_write+0x12b/0x260
 do_syscall_64+0x3f/0x90
 entry_SYSCALL_64_after_hwframe+0x72/0xdc
RIP: 0033:0x7fea793adb19
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:00007fea76923188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fea794c0f60 RCX: 00007fea793adb19
RDX: 0000000000000125 RSI: 00000000200003c0 RDI: 0000000000000005
RBP: 00007fea79407f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe20fa882f R14: 00007fea76923300 R15: 0000000000022000
 </TASK>
irq event stamp: 5933
hardirqs last  enabled at (5999): [<ffffffff812fb878>] __up_console_sem+0x78/0x80
hardirqs last disabled at (6040): [<ffffffff812fb85d>] __up_console_sem+0x5d/0x80
softirqs last  enabled at (6318): [<ffffffff8118db0c>] __irq_exit_rcu+0xcc/0x110
softirqs last disabled at (6331): [<ffffffff8118db0c>] __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.7 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.7 not setting count and/or reply_len properly
netlink: 20 bytes leftover after parsing attributes in process `syz-executor.0'.
netlink: 20 bytes leftover after parsing attributes in process `syz-executor.0'.
netlink: 20 bytes leftover after parsing attributes in process `syz-executor.0'.
netlink: 20 bytes leftover after parsing attributes in process `syz-executor.0'.
netlink: 20 bytes leftover after parsing attributes in process `syz-executor.0'.
netlink: 'syz-executor.6': attribute type 2 has an invalid length.
netlink: 'syz-executor.6': attribute type 2 has an invalid length.
cgroup: release_agent respecified
netlink: 'syz-executor.6': attribute type 2 has an invalid length.
cgroup: release_agent respecified
netlink: 'syz-executor.6': attribute type 2 has an invalid length.
cgroup: release_agent respecified
cgroup: release_agent respecified
cgroup: release_agent respecified
SELinux: security_context_str_to_sid (system_u) failed with errno=-22
SELinux: security_context_str_to_sid (system_u) failed with errno=-22
SELinux: security_context_str_to_sid (system_u) failed with errno=-22
SELinux: security_context_str_to_sid (system_u) failed with errno=-22
SELinux: security_context_str_to_sid (system_u) failed with errno=-22