------------[ cut here ]------------
WARNING: CPU: 0 PID: 19981 at lib/iov_iter.c:274 _copy_from_iter+0x331/0x1d40 lib/iov_iter.c:274
Modules linked in:
CPU: 0 PID: 19981 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+0x331/0x1d40 lib/iov_iter.c:274
Code: 28 00 00 00 48 3b 84 24 20 01 00 00 0f 85 63 19 00 00 4c 89 e0 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 80 f0 04 fd 90 <0f> 0b 90 45 31 e4 eb 97 e8 72 f0 04 fd 48 8b 7c 24 68 4c 89 e6 4c
RSP: 0018:ffffc900041a7340 EFLAGS: 00010287
RAX: ffffffff848a09a0 RBX: 0000000000000000 RCX: 0000000000040000
RDX: ffffc9000ab64000 RSI: 00000000000009f5 RDI: 00000000000009f6
RBP: ffffc900041a74b8 R08: ffffffff848a0727 R09: 0000000000000200
R10: dffffc0000000000 R11: ffffed100fc6640f R12: 0000000000000089
R13: 0000000000000000 R14: ffffc900041a76d0 R15: ffffc900041a76d3
FS:  00007f6ad8f516c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f6ad8f50c98 CR3: 00000000968ea000 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:441
 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+0x141d/0x2540 block/blk-map.c:661
 blk_rq_map_user block/blk-map.c:690 [inline]
 blk_rq_map_user_io+0x288/0x420 block/blk-map.c:723
 sg_start_req drivers/scsi/sg.c:1817 [inline]
 sg_common_write+0xd7f/0x14d0 drivers/scsi/sg.c:803
 sg_new_write+0x5fe/0x7e0 drivers/scsi/sg.c:770
 sg_ioctl_common drivers/scsi/sg.c:935 [inline]
 sg_ioctl+0x17bd/0x2e80 drivers/scsi/sg.c:1160
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:871 [inline]
 __se_sys_ioctl+0xf8/0x170 fs/ioctl.c:857
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf5/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7f6ad827cda9
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:00007f6ad8f510c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f6ad83abf80 RCX: 00007f6ad827cda9
RDX: 0000000020000300 RSI: 0000000000002285 RDI: 0000000000000007
RBP: 00007f6ad82c947a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f6ad83abf80 R15: 00007ffd90004318
 </TASK>