EXT4-fs (loop2): mount failed
sg_write: data in/out 988/251 bytes for SCSI command 0x0-- guessing data in;
   program syz-executor.6 not setting count and/or reply_len properly
------------[ cut here ]------------
WARNING: CPU: 0 PID: 8180 at lib/iov_iter.c:629 _copy_from_iter+0x2bf/0x1170
Modules linked in:
CPU: 0 PID: 8180 Comm: syz-executor.6 Not tainted 6.2.0-rc4-next-20230120 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:_copy_from_iter+0x2bf/0x1170
Code: 5d 41 5e 41 5f e9 95 42 33 02 e8 cc cc 37 ff be 79 02 00 00 48 c7 c7 80 e3 9e 84 e8 3b 68 5b ff e9 48 fe ff ff e8 b1 cc 37 ff <0f> 0b 45 31 f6 eb 87 e8 a5 cc 37 ff 31 ff 89 ee e8 6c c8 37 ff 40
RSP: 0018:ffff8880443ef608 EFLAGS: 00010216
RAX: 0000000000001a5a RBX: 0000000000000000 RCX: ffffc90007e10000
RDX: 0000000000040000 RSI: ffffffff8211ac4f RDI: 0000000000000001
RBP: 00000000000003dc R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: ffff8880443ef838
R13: ffffea0001107c00 R14: 00000000000003dc R15: ffff8880443ef838
FS:  00007f578f37a700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa56c9f0ea0 CR3: 00000000161c4000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 copy_page_from_iter+0x251/0x430
 blk_rq_map_user_iov+0xb41/0x16c0
 blk_rq_map_user_io+0x1d1/0x200
 sg_common_write.constprop.0+0xd8d/0x15f0
 sg_write.part.0+0x698/0xa90
 sg_write+0x8d/0xe0
 vfs_write+0x2cf/0xdd0
 ksys_write+0x12b/0x260
 do_syscall_64+0x3f/0x90
 entry_SYSCALL_64_after_hwframe+0x72/0xdc
RIP: 0033:0x7f5791e04b19
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:00007f578f37a188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f5791f17f60 RCX: 00007f5791e04b19
RDX: 0000000000000125 RSI: 0000000020000040 RDI: 0000000000000005
RBP: 00007f5791e5ef6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff3574f6ef R14: 00007f578f37a300 R15: 0000000000022000
 </TASK>
irq event stamp: 3489
hardirqs last  enabled at (3535): [<ffffffff812e23b8>] __up_console_sem+0x78/0x80
hardirqs last disabled at (3596): [<ffffffff812e239d>] __up_console_sem+0x5d/0x80
softirqs last  enabled at (878): [<ffffffff81182fef>] irq_exit_rcu+0x11f/0x190
softirqs last disabled at (807): [<ffffffff81182fef>] irq_exit_rcu+0x11f/0x190
---[ end trace 0000000000000000 ]---
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=61 sclass=netlink_route_socket pid=8189 comm=syz-executor.6
loop2: detected capacity change from 0 to 2048
sg_write: data in/out 988/251 bytes for SCSI command 0x0-- guessing data in;
   program syz-executor.6 not setting count and/or reply_len properly
EXT4-fs error (device loop2): __ext4_fill_super:5377: inode #2: comm syz-executor.2: iget: root inode unallocated
EXT4-fs (loop2): get root inode failed
EXT4-fs (loop2): mount failed