------------[ cut here ]------------
WARNING: CPU: 1 PID: 15520 at lib/iov_iter.c:274 _copy_from_iter+0x38c/0x10f0 lib/iov_iter.c:274
Modules linked in:
CPU: 1 PID: 15520 Comm: syz-executor.4 Not tainted 6.8.0-rc1-syzkaller-00029-g615d30064886 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
RIP: 0010:_copy_from_iter+0x38c/0x10f0 lib/iov_iter.c:274
Code: 78 fd 0f 01 cb 4c 89 f9 4c 89 f7 48 89 de e8 1b 53 1a 06 48 89 cb 0f 01 ca 4d 89 fc 49 29 cc e9 db fe ff ff e8 85 40 20 fd 90 <0f> 0b 90 45 31 e4 e9 25 ff ff ff e8 74 40 20 fd 48 8b 14 24 4c 89
RSP: 0018:ffffc900159575e0 EFLAGS: 00010283
RAX: 000000000000881c RBX: 0000000000000000 RCX: ffffc9000a229000
RDX: 0000000000040000 RSI: ffffffff8467e1db RDI: 0000000000000001
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000053
R13: ffffea0000ed9600 R14: ffffc900159577f8 R15: 0000000000000053
FS:  00007f41e79466c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000000 CR3: 0000000016aa4000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 copy_page_from_iter lib/iov_iter.c:441 [inline]
 copy_page_from_iter+0xa5/0x120 lib/iov_iter.c:430
 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+0x9e7/0x1840 block/blk-map.c:661
 blk_rq_map_user block/blk-map.c:690 [inline]
 blk_rq_map_user_io+0x202/0x230 block/blk-map.c:723
 sg_start_req drivers/scsi/sg.c:1817 [inline]
 sg_common_write.constprop.0+0xd61/0x1c90 drivers/scsi/sg.c:803
 sg_write+0x82f/0xe10 drivers/scsi/sg.c:707
 vfs_write+0x294/0x1100 fs/read_write.c:588
 ksys_write+0x12f/0x250 fs/read_write.c:643
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xd3/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7f41e6c7cda9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f41e79460c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f41e6dabf80 RCX: 00007f41e6c7cda9
RDX: 0000000000000050 RSI: 0000000020000000 RDI: 0000000000000004
RBP: 00007f41e6cc947a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f41e6dabf80 R15: 00007fffeeba3688
 </TASK>