sg_write: data in/out 80/6 bytes for SCSI command 0x0-- guessing data in;
   program syz-executor398 not setting count and/or reply_len properly
------------[ cut here ]------------
WARNING: CPU: 0 PID: 5070 at lib/iov_iter.c:644 _copy_from_iter+0x2d9/0x1190
Modules linked in:
CPU: 0 PID: 5070 Comm: syz-executor398 Not tainted 6.4.0-rc5-syzkaller-00245-g64569520920a #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023
RIP: 0010:_copy_from_iter+0x2d9/0x1190 lib/iov_iter.c:644
Code: 25 28 00 00 00 48 3b 84 24 00 01 00 00 0f 85 92 0e 00 00 4c 89 f0 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 e7 0a 5a fd <0f> 0b 45 31 f6 eb a7 e8 db 0a 5a fd 49 89 de e9 52 fe ff ff e8 ce
RSP: 0018:ffffc90003c7f280 EFLAGS: 00010293
RAX: ffffffff843174b9 RBX: 0000000000000000 RCX: ffff88801f7c8000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90003c7f3d8 R08: ffffffff84317292 R09: 0000000000000200
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff9200078fe60
R13: dffffc0000000000 R14: 0000000000000050 R15: ffffc90003c7f5f0
FS:  00007faa9c177700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000002000002c CR3: 000000001eaea000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 copy_page_from_iter+0x7a/0x100 lib/iov_iter.c:805
 bio_copy_from_iter block/blk-map.c:56 [inline]
 bio_copy_user_iov block/blk-map.c:211 [inline]
 blk_rq_map_user_iov+0x13f0/0x2380 block/blk-map.c:662
 blk_rq_map_user block/blk-map.c:691 [inline]
 blk_rq_map_user_io+0x288/0x420 block/blk-map.c:724
 sg_start_req drivers/scsi/sg.c:1807 [inline]
 sg_common_write+0xd7f/0x14d0 drivers/scsi/sg.c:803
 sg_write+0xa5e/0xf10 drivers/scsi/sg.c:707
 vfs_write+0x28d/0xb20 fs/read_write.c:582
 ksys_write+0x1a0/0x2c0 fs/read_write.c:637
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7faa9c1cb379
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 41 15 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007faa9c177208 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007faa9c2516e8 RCX: 00007faa9c1cb379
RDX: 0000000000000030 RSI: 0000000020000000 RDI: 0000000000000004
RBP: 00007faa9c2516e0 R08: 00007faa9c2516e0 R09: 0000000000000000
R10: 00007faa9c177210 R11: 0000000000000246 R12: 00007faa9c2516ec
R13: 00007ffeb9aef6ff R14: 00007faa9c177300 R15: 0000000000022000
 </TASK>