------------[ cut here ]------------
WARNING: CPU: 1 PID: 10438 at lib/iov_iter.c:274 _copy_from_iter+0x38c/0x10f0 lib/iov_iter.c:274
Modules linked in:
CPU: 1 PID: 10438 Comm: syz-executor.4 Not tainted 6.8.0-rc1-syzkaller-00169-gecb1b8288dc7 #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 7b 81 1a 06 48 89 cb 0f 01 ca 4d 89 fc 49 29 cc e9 db fe ff ff e8 45 40 20 fd 90 <0f> 0b 90 45 31 e4 e9 25 ff ff ff e8 34 40 20 fd 48 8b 14 24 4c 89
RSP: 0018:ffffc90013e5f540 EFLAGS: 00010287
RAX: 000000000000df21 RBX: 0000000000000000 RCX: ffffc9000af73000
RDX: 0000000000040000 RSI: ffffffff8467e37b RDI: 0000000000000001
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000001000
R13: ffffea0002050400 R14: ffffc90013e5f758 R15: 0000000000001000
FS:  00007f93b79ff6c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f5fc4ad66e4 CR3: 0000000027011000 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
 do_loop_readv_writev fs/read_write.c:764 [inline]
 do_loop_readv_writev fs/read_write.c:749 [inline]
 vfs_writev+0x6e8/0xdb0 fs/read_write.c:973
 do_writev+0x137/0x370 fs/read_write.c:1018
 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: 0033:0x7f93b867cda9
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:00007f93b79ff0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000014
RAX: ffffffffffffffda RBX: 00007f93b87abf80 RCX: 00007f93b867cda9
RDX: 0000000000000002 RSI: 0000000020000180 RDI: 0000000000000003
RBP: 00007f93b86c947a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f93b87abf80 R15: 00007ffc7ad7ab08
 </TASK>