sg_write: data in/out 917468/251 bytes for SCSI command 0x0-- guessing data in;
   program syz-executor.5 not setting count and/or reply_len properly
------------[ cut here ]------------
WARNING: CPU: 0 PID: 5402 at lib/iov_iter.c:623 _copy_from_iter+0x2b2/0x1140
Modules linked in:
CPU: 0 PID: 5402 Comm: syz-executor.5 Not tainted 6.2.0-next-20230224 #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 12 b9 34 02 e8 f9 ce 35 ff be 73 02 00 00 48 c7 c7 20 d7 9e 84 e8 38 b1 59 ff e9 51 fe ff ff e8 de ce 35 ff <0f> 0b 45 31 f6 eb 87 e8 d2 ce 35 ff 31 ff 89 ee e8 39 ca 35 ff 40
RSP: 0018:ffff888016fef608 EFLAGS: 00010216
RAX: 000000000000749a RBX: 0000000000000000 RCX: ffffc900035de000
RDX: 0000000000040000 RSI: ffffffff8215a6d2 RDI: 0000000000000001
RBP: 0000000000001000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000
R13: ffff888016fef838 R14: 0000000000001000 R15: ffff888016fef838
FS:  00007fed32ac8700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2c525000 CR3: 0000000019eda000 CR4: 0000000000350ef0
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+0x698/0xac0
 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: 0033:0x7fed35552b19
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:00007fed32ac8188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fed35665f60 RCX: 00007fed35552b19
RDX: 0000000000000125 RSI: 00000000200003c0 RDI: 0000000000000005
RBP: 00007fed355acf6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd55c696bf R14: 00007fed32ac8300 R15: 0000000000022000
 </TASK>
irq event stamp: 9543
hardirqs last  enabled at (9585): [<ffffffff8460144a>] asm_sysvec_apic_timer_interrupt+0x1a/0x20
hardirqs last disabled at (9632): [<ffffffff844826df>] sysvec_apic_timer_interrupt+0xf/0x90
softirqs last  enabled at (2720): [<ffffffff8118dd1c>] __irq_exit_rcu+0xcc/0x110
softirqs last disabled at (2457): [<ffffffff8118dd1c>] __irq_exit_rcu+0xcc/0x110
---[ end trace 0000000000000000 ]---
audit: type=1400 audit(1677238851.093:14): avc:  denied  { block_suspend } for  pid=5414 comm="syz-executor.1" capability=36  scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=capability2 permissive=1
sg_write: data in/out 917468/251 bytes for SCSI command 0x0-- guessing data in;
   program syz-executor.5 not setting count and/or reply_len properly
loop3: detected capacity change from 0 to 264192
I/O error, dev loop3, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2
Buffer I/O error on dev loop3, logical block 0, async page read
 loop3: unable to read partition table
loop3: partition table beyond EOD, truncated
loop3: detected capacity change from 0 to 264192
syz-executor.2 (5603) used greatest stack depth: 23512 bytes left
loop3: detected capacity change from 0 to 264192