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: 0 PID: 4554 at lib/iov_iter.c:629 _copy_from_iter+0x2f1/0x1130
Modules linked in:
CPU: 0 PID: 4554 Comm: syz-executor.7 Not tainted 6.1.0-rc8-next-20221206 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:_copy_from_iter+0x2f1/0x1130
Code: 37 ff 44 89 f3 e9 2f ff ff ff e8 7a 07 37 ff be 79 02 00 00 48 c7 c7 80 c0 9e 84 e8 49 87 5a ff e9 13 fe ff ff e8 5f 07 37 ff <0f> 0b 45 31 f6 e9 77 ff ff ff e8 50 07 37 ff 31 ff 89 ee e8 17 03
RSP: 0018:ffff88804707f5e8 EFLAGS: 00010216
RAX: 0000000000003d5d RBX: 0000000000000000 RCX: ffffc90011e56000
RDX: 0000000000040000 RSI: ffffffff82124d21 RDI: 0000000000000001
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000001000
R13: ffffea000078f000 R14: 0000000000001000 R15: ffff88804707f818
FS:  00007f85becdf700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2d422000 CR3: 0000000023460000 CR4: 0000000000350ef0
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+0x706/0xb20
 sg_write+0x88/0xe0
 vfs_write+0x358/0xe40
 ksys_write+0x12b/0x260
 do_syscall_64+0x3f/0x90
 entry_SYSCALL_64_after_hwframe+0x72/0xdc
RIP: 0033:0x7f85c178ab19
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:00007f85becdf188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f85c189e020 RCX: 00007f85c178ab19
RDX: 0000000000000125 RSI: 00000000200003c0 RDI: 0000000000000005
RBP: 00007f85c17e4f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffeaa62d9ef R14: 00007f85becdf300 R15: 0000000000022000
 </TASK>
irq event stamp: 1151
hardirqs last  enabled at (1163): [<ffffffff812e2588>] __up_console_sem+0x78/0x80
hardirqs last disabled at (1172): [<ffffffff812e256d>] __up_console_sem+0x5d/0x80
softirqs last  enabled at (364): [<ffffffff8118443b>] __irq_exit_rcu+0x11b/0x180
softirqs last disabled at (197): [<ffffffff8118443b>] __irq_exit_rcu+0x11b/0x180
---[ 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
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: 4 bytes leftover after parsing attributes in process `syz-executor.4'.
capability: warning: `syz-executor.7' uses deprecated v2 capabilities in a way that may be insecure
audit: type=1400 audit(1670327272.399:13): avc:  denied  { module_load } for  pid=4655 comm="syz-executor.3" path=2F6D656D66643A2A5E2C40202864656C6574656429 dev="tmpfs" ino=15 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:tmpfs_t:s0 tclass=system permissive=1
Invalid ELF header len 1
Invalid ELF header len 1
Invalid ELF header len 1
Invalid ELF header len 1
Invalid ELF header len 1
pci 0000:00:02.0: vgaarb: changed VGA decodes: olddecodes=io+mem,decodes=io+mem:owns=io+mem
loop7: detected capacity change from 0 to 264192
loop3: detected capacity change from 0 to 40
loop2: detected capacity change from 0 to 512
EXT4-fs (loop2): mounted filesystem without journal. Quota mode: none.
EXT4-fs (loop2): unmounting filesystem.
kworker/u4:6: attempt to access beyond end of device
loop3: rw=1, sector=124, nr_sectors = 4 limit=40
buffer_io_error: 16 callbacks suppressed
Buffer I/O error on dev loop3, logical block 31, lost async page write
FAT-fs (loop7): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1)
loop7: detected capacity change from 0 to 264192
loop5: detected capacity change from 0 to 256
FAT-fs (loop7): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1)
FAT-fs (loop5): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1)
loop7: detected capacity change from 0 to 264192
FAT-fs (loop7): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1)
loop5: detected capacity change from 0 to 256
loop7: detected capacity change from 0 to 264192
FAT-fs (loop7): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1)
FAT-fs (loop5): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1)