------------[ cut here ]------------
WARNING: CPU: 1 PID: 5145 at lib/iov_iter.c:629 _copy_from_iter+0x2f1/0x1130
Modules linked in:
CPU: 1 PID: 5145 Comm: syz-executor.7 Not tainted 6.1.0-rc8-next-20221208 #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 3a 28 37 ff be 79 02 00 00 48 c7 c7 00 c1 9e 84 e8 a9 a7 5a ff e9 13 fe ff ff e8 1f 28 37 ff <0f> 0b 45 31 f6 e9 77 ff ff ff e8 10 28 37 ff 31 ff 89 ee e8 d7 23
RSP: 0018:ffff8880478ef5e8 EFLAGS: 00010212
RAX: 0000000000007ab7 RBX: 0000000000000000 RCX: ffffc90003a18000
RDX: 0000000000040000 RSI: ffffffff82122901 RDI: 0000000000000001
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000001000
R13: ffffea0000859c00 R14: 0000000000001000 R15: ffff8880478ef818
FS:  00007f0c577b3700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b33228000 CR3: 0000000043b56000 CR4: 0000000000350ee0
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: 0033:0x7f0c5a23db19
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:00007f0c577b3188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f0c5a350f60 RCX: 00007f0c5a23db19
RDX: 0000000000000125 RSI: 00000000200003c0 RDI: 0000000000000005
RBP: 00007f0c5a297f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc8af0ba0f R14: 00007f0c577b3300 R15: 0000000000022000
 </TASK>
irq event stamp: 7513
hardirqs last  enabled at (7553): [<ffffffff8460144a>] asm_sysvec_apic_timer_interrupt+0x1a/0x20
hardirqs last disabled at (7596): [<ffffffff843fd33f>] sysvec_apic_timer_interrupt+0xf/0xc0
softirqs last  enabled at (1866): [<ffffffff8118443b>] __irq_exit_rcu+0x11b/0x180
softirqs last disabled at (1647): [<ffffffff8118443b>] __irq_exit_rcu+0x11b/0x180
---[ end trace 0000000000000000 ]---
netlink: 1 bytes leftover after parsing attributes in process `syz-executor.0'.
loop6: detected capacity change from 0 to 264192
loop0: detected capacity change from 0 to 128
isofs_fill_super: bread failed, dev=loop0, iso_blknum=32, block=64
netlink: 1 bytes leftover after parsing attributes in process `syz-executor.0'.
loop0: detected capacity change from 0 to 128
loop7: detected capacity change from 0 to 264192
EXT4-fs (loop6): VFS: Can't find ext4 filesystem
loop6: detected capacity change from 0 to 264192
loop7: detected capacity change from 0 to 264192